[Midnightbsd-cvs] src [9735] vendor/mandoc: add mandoc 1.14.3

[laffer1 at midnightbsd.org]

Revision: 9735
          http://svnweb.midnightbsd.org/src/?rev=9735
Author:   laffer1
Date:     2018-01-18 23:36:23 -0500 (Thu, 18 Jan 2018)
Log Message:
-----------
add mandoc 1.14.3

Added Paths:
-----------
    vendor/mandoc/
    vendor/mandoc/dist/
    vendor/mandoc/dist/INSTALL
    vendor/mandoc/dist/LICENSE
    vendor/mandoc/dist/Makefile
    vendor/mandoc/dist/Makefile.depend
    vendor/mandoc/dist/Makefile.local
    vendor/mandoc/dist/NEWS
    vendor/mandoc/dist/TODO
    vendor/mandoc/dist/apropos.1
    vendor/mandoc/dist/att.c
    vendor/mandoc/dist/catman.8
    vendor/mandoc/dist/catman.c
    vendor/mandoc/dist/cgi.c
    vendor/mandoc/dist/cgi.h.example
    vendor/mandoc/dist/chars.c
    vendor/mandoc/dist/compat_err.c
    vendor/mandoc/dist/compat_fts.c
    vendor/mandoc/dist/compat_fts.h
    vendor/mandoc/dist/compat_getline.c
    vendor/mandoc/dist/compat_getsubopt.c
    vendor/mandoc/dist/compat_isblank.c
    vendor/mandoc/dist/compat_mkdtemp.c
    vendor/mandoc/dist/compat_ohash.c
    vendor/mandoc/dist/compat_ohash.h
    vendor/mandoc/dist/compat_progname.c
    vendor/mandoc/dist/compat_reallocarray.c
    vendor/mandoc/dist/compat_recallocarray.c
    vendor/mandoc/dist/compat_strcasestr.c
    vendor/mandoc/dist/compat_stringlist.c
    vendor/mandoc/dist/compat_stringlist.h
    vendor/mandoc/dist/compat_strlcat.c
    vendor/mandoc/dist/compat_strlcpy.c
    vendor/mandoc/dist/compat_strsep.c
    vendor/mandoc/dist/compat_strtonum.c
    vendor/mandoc/dist/compat_vasprintf.c
    vendor/mandoc/dist/config.h
    vendor/mandoc/dist/config.log
    vendor/mandoc/dist/configure
    vendor/mandoc/dist/configure.local.example
    vendor/mandoc/dist/dba.c
    vendor/mandoc/dist/dba.h
    vendor/mandoc/dist/dba_array.c
    vendor/mandoc/dist/dba_array.h
    vendor/mandoc/dist/dba_read.c
    vendor/mandoc/dist/dba_write.c
    vendor/mandoc/dist/dba_write.h
    vendor/mandoc/dist/dbm.c
    vendor/mandoc/dist/dbm.h
    vendor/mandoc/dist/dbm_map.c
    vendor/mandoc/dist/dbm_map.h
    vendor/mandoc/dist/demandoc.1
    vendor/mandoc/dist/demandoc.c
    vendor/mandoc/dist/eqn.7
    vendor/mandoc/dist/eqn.c
    vendor/mandoc/dist/eqn_html.c
    vendor/mandoc/dist/eqn_term.c
    vendor/mandoc/dist/gmdiff
    vendor/mandoc/dist/html.c
    vendor/mandoc/dist/html.h
    vendor/mandoc/dist/lib.c
    vendor/mandoc/dist/lib.in
    vendor/mandoc/dist/libman.h
    vendor/mandoc/dist/libmandoc.h
    vendor/mandoc/dist/libmdoc.h
    vendor/mandoc/dist/libroff.h
    vendor/mandoc/dist/main.c
    vendor/mandoc/dist/main.h
    vendor/mandoc/dist/makewhatis.8
    vendor/mandoc/dist/man.1
    vendor/mandoc/dist/man.7
    vendor/mandoc/dist/man.c
    vendor/mandoc/dist/man.cgi.3
    vendor/mandoc/dist/man.cgi.8
    vendor/mandoc/dist/man.conf.5
    vendor/mandoc/dist/man.h
    vendor/mandoc/dist/man.options.1
    vendor/mandoc/dist/man_html.c
    vendor/mandoc/dist/man_macro.c
    vendor/mandoc/dist/man_term.c
    vendor/mandoc/dist/man_validate.c
    vendor/mandoc/dist/manconf.h
    vendor/mandoc/dist/mandoc.1
    vendor/mandoc/dist/mandoc.3
    vendor/mandoc/dist/mandoc.c
    vendor/mandoc/dist/mandoc.css
    vendor/mandoc/dist/mandoc.db.5
    vendor/mandoc/dist/mandoc.h
    vendor/mandoc/dist/mandoc_aux.c
    vendor/mandoc/dist/mandoc_aux.h
    vendor/mandoc/dist/mandoc_char.7
    vendor/mandoc/dist/mandoc_escape.3
    vendor/mandoc/dist/mandoc_headers.3
    vendor/mandoc/dist/mandoc_html.3
    vendor/mandoc/dist/mandoc_malloc.3
    vendor/mandoc/dist/mandoc_ohash.c
    vendor/mandoc/dist/mandoc_ohash.h
    vendor/mandoc/dist/mandoc_xr.c
    vendor/mandoc/dist/mandoc_xr.h
    vendor/mandoc/dist/mandocd.8
    vendor/mandoc/dist/mandocd.c
    vendor/mandoc/dist/mandocdb.c
    vendor/mandoc/dist/manpath.c
    vendor/mandoc/dist/mansearch.3
    vendor/mandoc/dist/mansearch.c
    vendor/mandoc/dist/mansearch.h
    vendor/mandoc/dist/mchars_alloc.3
    vendor/mandoc/dist/mdoc.7
    vendor/mandoc/dist/mdoc.c
    vendor/mandoc/dist/mdoc.h
    vendor/mandoc/dist/mdoc_argv.c
    vendor/mandoc/dist/mdoc_html.c
    vendor/mandoc/dist/mdoc_macro.c
    vendor/mandoc/dist/mdoc_man.c
    vendor/mandoc/dist/mdoc_markdown.c
    vendor/mandoc/dist/mdoc_state.c
    vendor/mandoc/dist/mdoc_term.c
    vendor/mandoc/dist/mdoc_validate.c
    vendor/mandoc/dist/msec.c
    vendor/mandoc/dist/msec.in
    vendor/mandoc/dist/out.c
    vendor/mandoc/dist/out.h
    vendor/mandoc/dist/preconv.c
    vendor/mandoc/dist/predefs.in
    vendor/mandoc/dist/read.c
    vendor/mandoc/dist/regress/
    vendor/mandoc/dist/regress/char/
    vendor/mandoc/dist/regress/char/Makefile
    vendor/mandoc/dist/regress/char/Makefile.inc
    vendor/mandoc/dist/regress/char/N/
    vendor/mandoc/dist/regress/char/N/Makefile
    vendor/mandoc/dist/regress/char/N/basic.in
    vendor/mandoc/dist/regress/char/N/basic.out_ascii
    vendor/mandoc/dist/regress/char/accent/
    vendor/mandoc/dist/regress/char/accent/Makefile
    vendor/mandoc/dist/regress/char/accent/combine.in
    vendor/mandoc/dist/regress/char/accent/combine.out_utf8
    vendor/mandoc/dist/regress/char/accent/nocombine.in
    vendor/mandoc/dist/regress/char/accent/nocombine.out_ascii
    vendor/mandoc/dist/regress/char/accent/nocombine.out_utf8
    vendor/mandoc/dist/regress/char/accent/utf8only.in
    vendor/mandoc/dist/regress/char/accent/utf8only.out_utf8
    vendor/mandoc/dist/regress/char/bar/
    vendor/mandoc/dist/regress/char/bar/Makefile
    vendor/mandoc/dist/regress/char/bar/man.in
    vendor/mandoc/dist/regress/char/bar/man.out_ascii
    vendor/mandoc/dist/regress/char/bar/mdoc.in
    vendor/mandoc/dist/regress/char/bar/mdoc.out_ascii
    vendor/mandoc/dist/regress/char/hyphen/
    vendor/mandoc/dist/regress/char/hyphen/Makefile
    vendor/mandoc/dist/regress/char/hyphen/man.in
    vendor/mandoc/dist/regress/char/hyphen/man.out_ascii
    vendor/mandoc/dist/regress/char/hyphen/mdoc.in
    vendor/mandoc/dist/regress/char/hyphen/mdoc.out_ascii
    vendor/mandoc/dist/regress/char/space/
    vendor/mandoc/dist/regress/char/space/Makefile
    vendor/mandoc/dist/regress/char/space/break.in
    vendor/mandoc/dist/regress/char/space/break.out_ascii
    vendor/mandoc/dist/regress/char/space/eos-man.in
    vendor/mandoc/dist/regress/char/space/eos-man.out_ascii
    vendor/mandoc/dist/regress/char/space/eos.in
    vendor/mandoc/dist/regress/char/space/eos.out_ascii
    vendor/mandoc/dist/regress/char/space/esct-man.in
    vendor/mandoc/dist/regress/char/space/esct-man.out_ascii
    vendor/mandoc/dist/regress/char/space/esct-man.out_lint
    vendor/mandoc/dist/regress/char/space/esct-mdoc.in
    vendor/mandoc/dist/regress/char/space/esct-mdoc.out_ascii
    vendor/mandoc/dist/regress/char/space/esct-mdoc.out_lint
    vendor/mandoc/dist/regress/char/space/leading-man.in
    vendor/mandoc/dist/regress/char/space/leading-man.out_ascii
    vendor/mandoc/dist/regress/char/space/leading-mdoc.in
    vendor/mandoc/dist/regress/char/space/leading-mdoc.out_ascii
    vendor/mandoc/dist/regress/char/space/multiple.in
    vendor/mandoc/dist/regress/char/space/multiple.out_ascii
    vendor/mandoc/dist/regress/char/space/nobreak.in
    vendor/mandoc/dist/regress/char/space/nobreak.out_ascii
    vendor/mandoc/dist/regress/char/space/tab-man.in
    vendor/mandoc/dist/regress/char/space/tab-man.out_ascii
    vendor/mandoc/dist/regress/char/space/tab-man.out_lint
    vendor/mandoc/dist/regress/char/space/tab.in
    vendor/mandoc/dist/regress/char/space/tab.out_ascii
    vendor/mandoc/dist/regress/char/space/tab.out_lint
    vendor/mandoc/dist/regress/char/space/trailing-mdoc.in
    vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_ascii
    vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_lint
    vendor/mandoc/dist/regress/char/space/zerowidth.in
    vendor/mandoc/dist/regress/char/space/zerowidth.out_ascii
    vendor/mandoc/dist/regress/char/space/zerowidth.out_html
    vendor/mandoc/dist/regress/char/space/zerowidth.out_utf8
    vendor/mandoc/dist/regress/char/unicode/
    vendor/mandoc/dist/regress/char/unicode/Makefile
    vendor/mandoc/dist/regress/char/unicode/ascii.in
    vendor/mandoc/dist/regress/char/unicode/ascii.out_ascii
    vendor/mandoc/dist/regress/char/unicode/ascii.out_html
    vendor/mandoc/dist/regress/char/unicode/ascii.out_utf8
    vendor/mandoc/dist/regress/char/unicode/input.in
    vendor/mandoc/dist/regress/char/unicode/input.out_ascii
    vendor/mandoc/dist/regress/char/unicode/input.out_lint
    vendor/mandoc/dist/regress/char/unicode/input.out_utf8
    vendor/mandoc/dist/regress/char/unicode/invalid.in
    vendor/mandoc/dist/regress/char/unicode/invalid.out_ascii
    vendor/mandoc/dist/regress/char/unicode/invalid.out_html
    vendor/mandoc/dist/regress/char/unicode/invalid.out_lint
    vendor/mandoc/dist/regress/char/unicode/invalid.out_utf8
    vendor/mandoc/dist/regress/char/unicode/latin1.in
    vendor/mandoc/dist/regress/char/unicode/latin1.out_ascii
    vendor/mandoc/dist/regress/char/unicode/latin1.out_html
    vendor/mandoc/dist/regress/char/unicode/latin1.out_utf8
    vendor/mandoc/dist/regress/char/unicode/latin1diff.in
    vendor/mandoc/dist/regress/char/unicode/latin1diff.out_ascii
    vendor/mandoc/dist/regress/char/unicode/latin1diff.out_html
    vendor/mandoc/dist/regress/char/unicode/latin1diff.out_utf8
    vendor/mandoc/dist/regress/char/unicode/man.in
    vendor/mandoc/dist/regress/char/unicode/man.out_utf8
    vendor/mandoc/dist/regress/char/unicode/mdoc.in
    vendor/mandoc/dist/regress/char/unicode/mdoc.out_utf8
    vendor/mandoc/dist/regress/char/unicode/named.in
    vendor/mandoc/dist/regress/char/unicode/named.out_ascii
    vendor/mandoc/dist/regress/char/unicode/named.out_html
    vendor/mandoc/dist/regress/char/unicode/named.out_utf8
    vendor/mandoc/dist/regress/char/unicode/namediff.in
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    vendor/mandoc/dist/regress/char/unicode/namediff.out_html
    vendor/mandoc/dist/regress/char/unicode/namediff.out_utf8
    vendor/mandoc/dist/regress/char/unicode/nogroff.in
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    vendor/mandoc/dist/regress/char/unicode/nogroff.out_html
    vendor/mandoc/dist/regress/char/unicode/nogroff.out_utf8
    vendor/mandoc/dist/regress/eqn/
    vendor/mandoc/dist/regress/eqn/Makefile
    vendor/mandoc/dist/regress/eqn/Makefile.inc
    vendor/mandoc/dist/regress/eqn/define/
    vendor/mandoc/dist/regress/eqn/define/Makefile
    vendor/mandoc/dist/regress/eqn/define/font.in
    vendor/mandoc/dist/regress/eqn/define/font.out_ascii
    vendor/mandoc/dist/regress/eqn/define/infinite.in
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    vendor/mandoc/dist/regress/eqn/define/quoted.in
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    vendor/mandoc/dist/regress/eqn/delim/
    vendor/mandoc/dist/regress/eqn/delim/Makefile
    vendor/mandoc/dist/regress/eqn/delim/basic.in
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    vendor/mandoc/dist/regress/eqn/fromto/
    vendor/mandoc/dist/regress/eqn/fromto/Makefile
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    vendor/mandoc/dist/regress/eqn/fromto/precedence.out_html
    vendor/mandoc/dist/regress/eqn/matrix/
    vendor/mandoc/dist/regress/eqn/matrix/Makefile
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    vendor/mandoc/dist/regress/eqn/over/
    vendor/mandoc/dist/regress/eqn/over/Makefile
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    vendor/mandoc/dist/regress/eqn/size/
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    vendor/mandoc/dist/tag.c
    vendor/mandoc/dist/tag.h
    vendor/mandoc/dist/tbl.3
    vendor/mandoc/dist/tbl.7
    vendor/mandoc/dist/tbl.c
    vendor/mandoc/dist/tbl_data.c
    vendor/mandoc/dist/tbl_html.c
    vendor/mandoc/dist/tbl_layout.c
    vendor/mandoc/dist/tbl_opts.c
    vendor/mandoc/dist/tbl_term.c
    vendor/mandoc/dist/term.c
    vendor/mandoc/dist/term.h
    vendor/mandoc/dist/term_ascii.c
    vendor/mandoc/dist/term_ps.c
    vendor/mandoc/dist/term_tab.c
    vendor/mandoc/dist/test-EFTYPE.c
    vendor/mandoc/dist/test-O_DIRECTORY.c
    vendor/mandoc/dist/test-PATH_MAX.c
    vendor/mandoc/dist/test-be32toh.c
    vendor/mandoc/dist/test-cmsg.c
    vendor/mandoc/dist/test-dirent-namlen.c
    vendor/mandoc/dist/test-err.c
    vendor/mandoc/dist/test-fts.c
    vendor/mandoc/dist/test-getline.c
    vendor/mandoc/dist/test-getsubopt.c
    vendor/mandoc/dist/test-isblank.c
    vendor/mandoc/dist/test-mkdtemp.c
    vendor/mandoc/dist/test-nanosleep.c
    vendor/mandoc/dist/test-ntohl.c
    vendor/mandoc/dist/test-ohash.c
    vendor/mandoc/dist/test-pledge.c
    vendor/mandoc/dist/test-progname.c
    vendor/mandoc/dist/test-reallocarray.c
    vendor/mandoc/dist/test-recallocarray.c
    vendor/mandoc/dist/test-recvmsg.c
    vendor/mandoc/dist/test-rewb-bsd.c
    vendor/mandoc/dist/test-rewb-sysv.c
    vendor/mandoc/dist/test-sandbox_init.c
    vendor/mandoc/dist/test-strcasestr.c
    vendor/mandoc/dist/test-stringlist.c
    vendor/mandoc/dist/test-strlcat.c
    vendor/mandoc/dist/test-strlcpy.c
    vendor/mandoc/dist/test-strptime.c
    vendor/mandoc/dist/test-strsep.c
    vendor/mandoc/dist/test-strtonum.c
    vendor/mandoc/dist/test-vasprintf.c
    vendor/mandoc/dist/test-wchar.c
    vendor/mandoc/dist/tree.c

Added: vendor/mandoc/dist/INSTALL
===================================================================
--- vendor/mandoc/dist/INSTALL	                        (rev 0)
+++ vendor/mandoc/dist/INSTALL	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,159 @@
+$Id: INSTALL,v 1.20 2017/07/28 14:57:56 schwarze Exp $
+
+About the portable mandoc distribution
+--------------------------------------
+The mandoc manpage compiler toolset (formerly called "mdocml")
+is a suite of tools compiling mdoc(7), the roff(7) macro language
+of choice for BSD manual pages, and man(7), the predominant
+historical language for UNIX manuals.
+
+It includes a man(1) manual viewer and additional tools.
+For general information, see <http://mandoc.bsd.lv/>.
+
+In case you have questions or want to provide feedback, read
+<http://mandoc.bsd.lv/contact.html>.  Consider subscribing to the
+discuss@ mailing list mentioned on that page.  If you intend to
+help with the development of mandoc, consider subscribing to the
+tech@ mailing list, too.
+
+Enjoy using the mandoc toolset!
+
+Ingo Schwarze, Karlsruhe, July 2017
+
+
+Installation
+------------
+Before manually installing mandoc on your system, please check
+whether the newest version of mandoc is already installed by default
+or available via a binary package or a ports system.  A list of the
+latest bundled and ported versions of mandoc for various operating
+systems is maintained at <http://mandoc.bsd.lv/ports.html>.
+
+Regarding how packages and ports are maintained for your operating
+system, please consult your operating system documentation.
+To install mandoc manually, the following steps are needed:
+
+1. If you want to build the CGI program, man.cgi(8), too,
+run the command "echo BUILD_CGI=1 >> configure.local".
+Then run "cp cgi.h.example cgi.h" and edit cgi.h as desired.
+
+2. If you also want to build the catman(8) utility, run the
+command "echo BUILD_CATMAN=1 >> configure.local".  Note that it
+is unlikely to be a drop-in replacement providing the same
+functionality as your system's "catman", if your operating
+system contains one.
+
+3. Define MANPATH_DEFAULT in configure.local
+if /usr/share/man:/usr/X11R6/man:/usr/local/man is not appropriate
+for your operating system.
+
+4. Run "./configure".
+This script attempts autoconfiguration of mandoc for your system.
+Read both its standard output and the file "Makefile.local" it
+generates.  If anything looks wrong or different from what you
+wish, read the file "configure.local.example", create and edit
+a file "configure.local", and re-run "./configure" until the
+result seems right to you.
+On Solaris 10 and earlier, you may have to run "ksh ./configure"
+because the native /bin/sh lacks some POSIX features.
+
+5. Run "make".
+Any POSIX-compatible make, in particular both BSD make and GNU make,
+should work.  If the build fails, look at "configure.local.example"
+and go back to step 2.
+
+6. Run "make -n install" and check whether everything will be
+installed to the intended places.  Otherwise, put some *DIR or *NM*
+variables into "configure.local" and go back to step 4.
+
+7. Optionally run the regression suite.
+Basically, that amounts to "cd regress && ./regress.pl".
+But you should probably look at "./mandoc -l regress/regress.pl.1"
+first.
+
+8. Run "sudo make install".  If you intend to build a binary
+package using some kind of fake root mechanism, you may need a
+command like "make DESTDIR=... install".  Read the *-install targets
+in the "Makefile" to understand how DESTDIR is used.
+
+9. Run the command "sudo makewhatis" to build mandoc.db(5) databases
+in all the directory trees configured in step 3.  Whenever installing
+new manual pages, re-run makewhatis(8) to update the databases, or
+apropos(1) will not find the new pages.
+
+10. To set up a man.cgi(8) server, read its manual page.
+
+Note that some man(7) pages may contain low-level roff(7) markup
+that mandoc does not yet understand.  On some BSD systems using
+mandoc, third-party software is vetted on whether it may be formatted
+with mandoc.  If not, groff(1) is pulled in as a dependency and
+used to install a pre-formatted "catpage" instead of directly as
+manual page source.
+
+
+Understanding mandoc dependencies
+---------------------------------
+The following libraries are required:
+
+1. zlib for decompressing gzipped manual pages.
+
+2. The fts(3) directory traversion functions.
+If your system does not have them, the bundled compatibility version
+will be used, so you need not worry in that case.  But be careful: old
+glibc versions of fts(3) were known to be broken on 32bit platforms,
+see <https://sourceware.org/bugzilla/show_bug.cgi?id=11460>.
+That was presumably fixed in glibc-2.23.
+If you run into that problem, set "HAVE_FTS=0" in configure.local.
+
+3. Marc Espie's ohash(3) library.
+If your system does not have it, the bundled compatibility version
+will be used, so you probably need not worry about it.
+
+One of the chief design goals of the mandoc toolbox is to make
+sure that nothing related to documentation requires C++.
+Consequently, linking mandoc against any kind of C++ program
+would defeat the purpose and is not supported.
+
+
+Checking autoconfiguration quality
+----------------------------------
+If you want to check whether automatic configuration works well
+on your platform, consider the following:
+
+The mandoc package intentionally does not use GNU autoconf because
+we consider that toolset a blatant example of overengineering that
+is obsolete nowadays, since all modern operating systems are now
+reasonably close to POSIX and do not need arcane shell magic any
+longer.  If your system does need such magic, consider upgrading
+to reasonably modern POSIX-compliant tools rather than asking for
+autoconf-style workarounds.
+
+As far as mandoc is using any features not mandated by ANSI X3.159-1989
+("ANSI C") or IEEE Std 1003.1-2008 ("POSIX") that some modern systems
+do not have, we intend to provide autoconfiguration tests and
+compat_*.c implementations.  Please report any that turn out to be
+missing.  Note that while we do strive to produce portable code,
+we do not slavishly restrict ourselves to POSIX-only interfaces.
+For improved security and readability, we do use well-designed,
+modern interfaces like reallocarray(3) even if they are still rather
+uncommon, of course bundling compat_*.c implementations as needed.
+
+Where mandoc is using ANSI C or POSIX features that some systems
+still lack and that compat_*.c implementations can be provided for
+without too much hassle, we will consider adding them, too, so
+please report whatever is missing on your platform.
+
+The following steps can be used to manually check the automatic
+configuration on your platform:
+
+1. Run "make distclean".
+
+2. Run "./configure"
+
+3. Read the file "config.log".  It shows the compiler commands used
+to test the libraries installed on your system and the standard
+output and standard error output these commands produce.  Watch out
+for unexpected failures.  Those are most likely to happen if headers
+or libraries are installed in unusual places or interfaces defined
+in unusual headers.  You can also look at the file "config.h" and
+check that no "#define HAVE_*" differ from your expectations.

Added: vendor/mandoc/dist/LICENSE
===================================================================
--- vendor/mandoc/dist/LICENSE	                        (rev 0)
+++ vendor/mandoc/dist/LICENSE	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,54 @@
+$Id: LICENSE,v 1.17 2017/06/23 15:58:14 schwarze Exp $
+
+With the exceptions noted below, all code and documentation
+contained in the mandoc toolkit is protected by the Copyright
+of the following developers:
+
+Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+Copyright (c) 2010-2017 Ingo Schwarze <schwarze at openbsd.org>
+Copyright (c) 2009, 2010, 2011, 2012 Joerg Sonnenberger <joerg at netbsd.org>
+Copyright (c) 2013 Franco Fichtner <franco at lastsummer.de>
+Copyright (c) 2014 Baptiste Daroussin <bapt at freebsd.org>
+Copyright (c) 2016 Ed Maste <emaste at freebsd.org>
+Copyright (c) 2017 Michael Stapelberg <stapelberg at debian.org>
+Copyright (c) 1999, 2004 Marc Espie <espie at openbsd.org>
+Copyright (c) 1998, 2004, 2010 Todd C. Miller <Todd.Miller at courtesan.com>
+Copyright (c) 2008, 2017 Otto Moerbeek <otto at drijf.net>
+Copyright (c) 2004 Ted Unangst <tedu at openbsd.org>
+Copyright (c) 1994 Christos Zoulas <christos at netbsd.org>
+Copyright (c) 2003, 2007, 2008, 2014 Jason McIntyre <jmc at openbsd.org>
+
+See the individual source files for information about who contributed
+to which file during which years.
+
+
+The mandoc distribution as a whole is distributed by its developers
+under the following license:
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+The following files included from outside sources are protected by
+other people's Copyright and are distributed under various 2-clause
+and 3-clause BSD licenses; see these individual files for details.
+
+soelim.c, soelim.1:
+Copyright (c) 2014 Baptiste Daroussin <bapt at freebsd.org>
+
+compat_err.c, compat_fts.c, compat_fts.h,
+compat_getsubopt.c, compat_strcasestr.c, compat_strsep.c,
+man.1:
+Copyright (c) 1989,1990,1993,1994 The Regents of the University of California
+
+compat_stringlist.c, compat_stringlist.h:
+Copyright (c) 1994 Christos Zoulas <christos at netbsd.org>

Added: vendor/mandoc/dist/Makefile
===================================================================
--- vendor/mandoc/dist/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,573 @@
+# $Id: Makefile,v 1.516 2017/07/20 16:24:53 schwarze Exp $
+#
+# Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+# Copyright (c) 2011, 2013-2017 Ingo Schwarze <schwarze at openbsd.org>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+VERSION = 1.14.3
+
+# === LIST OF FILES ====================================================
+
+TESTSRCS	 = test-be32toh.c \
+		   test-cmsg.c \
+		   test-dirent-namlen.c \
+		   test-EFTYPE.c \
+		   test-err.c \
+		   test-fts.c \
+		   test-getline.c \
+		   test-getsubopt.c \
+		   test-isblank.c \
+		   test-mkdtemp.c \
+		   test-nanosleep.c \
+		   test-ntohl.c \
+		   test-O_DIRECTORY.c \
+		   test-ohash.c \
+		   test-PATH_MAX.c \
+		   test-pledge.c \
+		   test-progname.c \
+		   test-recvmsg.c \
+		   test-reallocarray.c \
+		   test-recallocarray.c \
+		   test-rewb-bsd.c \
+		   test-rewb-sysv.c \
+		   test-sandbox_init.c \
+		   test-strcasestr.c \
+		   test-stringlist.c \
+		   test-strlcat.c \
+		   test-strlcpy.c \
+		   test-strptime.c \
+		   test-strsep.c \
+		   test-strtonum.c \
+		   test-vasprintf.c \
+		   test-wchar.c
+
+SRCS		 = att.c \
+		   catman.c \
+		   cgi.c \
+		   chars.c \
+		   compat_err.c \
+		   compat_fts.c \
+		   compat_getline.c \
+		   compat_getsubopt.c \
+		   compat_isblank.c \
+		   compat_mkdtemp.c \
+		   compat_ohash.c \
+		   compat_progname.c \
+		   compat_reallocarray.c \
+		   compat_recallocarray.c \
+		   compat_strcasestr.c \
+		   compat_stringlist.c \
+		   compat_strlcat.c \
+		   compat_strlcpy.c \
+		   compat_strsep.c \
+		   compat_strtonum.c \
+		   compat_vasprintf.c \
+		   dba.c \
+		   dba_array.c \
+		   dba_read.c \
+		   dba_write.c \
+		   dbm.c \
+		   dbm_map.c \
+		   demandoc.c \
+		   eqn.c \
+		   eqn_html.c \
+		   eqn_term.c \
+		   html.c \
+		   lib.c \
+		   main.c \
+		   man.c \
+		   man_html.c \
+		   man_macro.c \
+		   man_term.c \
+		   man_validate.c \
+		   mandoc.c \
+		   mandoc_aux.c \
+		   mandoc_ohash.c \
+		   mandoc_xr.c \
+		   mandocd.c \
+		   mandocdb.c \
+		   manpath.c \
+		   mansearch.c \
+		   mdoc.c \
+		   mdoc_argv.c \
+		   mdoc_html.c \
+		   mdoc_macro.c \
+		   mdoc_man.c \
+		   mdoc_markdown.c \
+		   mdoc_state.c \
+		   mdoc_term.c \
+		   mdoc_validate.c \
+		   msec.c \
+		   out.c \
+		   preconv.c \
+		   read.c \
+		   roff.c \
+		   roff_html.c \
+		   roff_term.c \
+		   roff_validate.c \
+		   soelim.c \
+		   st.c \
+		   tag.c \
+		   tbl.c \
+		   tbl_data.c \
+		   tbl_html.c \
+		   tbl_layout.c \
+		   tbl_opts.c \
+		   tbl_term.c \
+		   term.c \
+		   term_ascii.c \
+		   term_ps.c \
+		   term_tab.c \
+		   tree.c
+
+DISTFILES	 = INSTALL \
+		   LICENSE \
+		   Makefile \
+		   Makefile.depend \
+		   NEWS \
+		   TODO \
+		   apropos.1 \
+		   catman.8 \
+		   cgi.h.example \
+		   compat_fts.h \
+		   compat_ohash.h \
+		   compat_stringlist.h \
+		   configure \
+		   configure.local.example \
+		   dba.h \
+		   dba_array.h \
+		   dba_write.h \
+		   dbm.h \
+		   dbm_map.h \
+		   demandoc.1 \
+		   eqn.7 \
+		   gmdiff \
+		   html.h \
+		   lib.in \
+		   libman.h \
+		   libmandoc.h \
+		   libmdoc.h \
+		   libroff.h \
+		   main.h \
+		   makewhatis.8 \
+		   man.1 \
+		   man.7 \
+		   man.cgi.3 \
+		   man.cgi.8 \
+		   man.conf.5 \
+		   man.h \
+		   man.options.1 \
+		   manconf.h \
+		   mandoc.1 \
+		   mandoc.3 \
+		   mandoc.css \
+		   mandoc.db.5 \
+		   mandoc.h \
+		   mandoc_aux.h \
+		   mandoc_char.7 \
+		   mandoc_escape.3 \
+		   mandoc_headers.3 \
+		   mandoc_html.3 \
+		   mandoc_malloc.3 \
+		   mandoc_ohash.h \
+		   mandoc_xr.h \
+		   mandocd.8 \
+		   mansearch.3 \
+		   mansearch.h \
+		   mchars_alloc.3 \
+		   mdoc.7 \
+		   mdoc.h \
+		   msec.in \
+		   out.h \
+		   predefs.in \
+		   roff.7 \
+		   roff.h \
+		   roff_int.h \
+		   soelim.1 \
+		   st.in \
+		   tag.h \
+		   tbl.3 \
+		   tbl.7 \
+		   term.h \
+		   $(SRCS) \
+		   $(TESTSRCS)
+
+LIBMAN_OBJS	 = man.o \
+		   man_macro.o \
+		   man_validate.o
+
+LIBMDOC_OBJS	 = att.o \
+		   lib.o \
+		   mdoc.o \
+		   mdoc_argv.o \
+		   mdoc_macro.o \
+		   mdoc_state.o \
+		   mdoc_validate.o \
+		   st.o
+
+LIBROFF_OBJS	 = eqn.o \
+		   roff.o \
+		   roff_validate.o \
+		   tbl.o \
+		   tbl_data.o \
+		   tbl_layout.o \
+		   tbl_opts.o
+
+LIBMANDOC_OBJS	 = $(LIBMAN_OBJS) \
+		   $(LIBMDOC_OBJS) \
+		   $(LIBROFF_OBJS) \
+		   chars.o \
+		   mandoc.o \
+		   mandoc_aux.o \
+		   mandoc_ohash.o \
+		   mandoc_xr.o \
+		   msec.o \
+		   preconv.o \
+		   read.o
+
+COMPAT_OBJS	 = compat_err.o \
+		   compat_fts.o \
+		   compat_getline.o \
+		   compat_getsubopt.o \
+		   compat_isblank.o \
+		   compat_mkdtemp.o \
+		   compat_ohash.o \
+		   compat_progname.o \
+		   compat_reallocarray.o \
+		   compat_recallocarray.o \
+		   compat_strcasestr.o \
+		   compat_strlcat.o \
+		   compat_strlcpy.o \
+		   compat_strsep.o \
+		   compat_strtonum.o \
+		   compat_vasprintf.o
+
+MANDOC_HTML_OBJS = eqn_html.o \
+		   html.o \
+		   man_html.o \
+		   mdoc_html.o \
+		   roff_html.o \
+		   tbl_html.o
+
+MANDOC_TERM_OBJS = eqn_term.o \
+		   man_term.o \
+		   mdoc_term.o \
+		   roff_term.o \
+		   term.o \
+		   term_ascii.o \
+		   term_ps.o \
+		   term_tab.o \
+		   tbl_term.o
+
+DBM_OBJS	 = dbm.o \
+		   dbm_map.o \
+		   mansearch.o
+
+DBA_OBJS	 = dba.o \
+		   dba_array.o \
+		   dba_read.o \
+		   dba_write.o \
+		   mandocdb.o
+
+MAIN_OBJS	 = $(MANDOC_HTML_OBJS) \
+		   $(MANDOC_MAN_OBJS) \
+		   $(MANDOC_TERM_OBJS) \
+		   $(DBM_OBJS) \
+		   $(DBA_OBJS) \
+		   main.o \
+		   manpath.o \
+		   mdoc_man.o \
+		   mdoc_markdown.o \
+		   out.o \
+		   tag.o \
+		   tree.o
+
+CGI_OBJS	 = $(MANDOC_HTML_OBJS) \
+		   $(DBM_OBJS) \
+		   cgi.o \
+		   out.o
+
+MANDOCD_OBJS	 = $(MANDOC_HTML_OBJS) \
+		   $(MANDOC_TERM_OBJS) \
+		   mandocd.o \
+		   out.o \
+		   tag.o
+
+DEMANDOC_OBJS	 = demandoc.o
+
+SOELIM_OBJS	 = soelim.o \
+		   compat_err.o \
+		   compat_getline.o \
+		   compat_progname.o \
+		   compat_reallocarray.o \
+		   compat_stringlist.o
+
+WWW_MANS	 = apropos.1.html \
+		   demandoc.1.html \
+		   man.1.html \
+		   mandoc.1.html \
+		   soelim.1.html \
+		   man.cgi.3.html \
+		   mandoc.3.html \
+		   mandoc_escape.3.html \
+		   mandoc_headers.3.html \
+		   mandoc_html.3.html \
+		   mandoc_malloc.3.html \
+		   mansearch.3.html \
+		   mchars_alloc.3.html \
+		   tbl.3.html \
+		   man.conf.5.html \
+		   mandoc.db.5.html \
+		   eqn.7.html \
+		   man.7.html \
+		   mandoc_char.7.html \
+		   mandocd.8.html \
+		   mdoc.7.html \
+		   roff.7.html \
+		   tbl.7.html \
+		   catman.8.html \
+		   makewhatis.8.html \
+		   man.cgi.8.html \
+		   man.h.html \
+		   manconf.h.html \
+		   mandoc.h.html \
+		   mandoc_aux.h.html \
+		   mansearch.h.html \
+		   mdoc.h.html \
+		   roff.h.html
+
+# === USER CONFIGURATION ===============================================
+
+include Makefile.local
+
+# === DEPENDENCY HANDLING ==============================================
+
+all: mandoc demandoc soelim $(BUILD_TARGETS) Makefile.local
+
+install: base-install $(INSTALL_TARGETS)
+
+www: $(WWW_MANS)
+
+$(WWW_MANS): mandoc
+
+.PHONY: base-install cgi-install install www-install
+.PHONY: clean distclean depend
+
+include Makefile.depend
+
+# === TARGETS CONTAINING SHELL COMMANDS ================================
+
+distclean: clean
+	rm -f Makefile.local config.h config.h.old config.log config.log.old
+
+clean:
+	rm -f libmandoc.a $(LIBMANDOC_OBJS) $(COMPAT_OBJS)
+	rm -f mandoc $(MAIN_OBJS)
+	rm -f man.cgi $(CGI_OBJS)
+	rm -f mandocd catman catman.o $(MANDOCD_OBJS)
+	rm -f demandoc $(DEMANDOC_OBJS)
+	rm -f soelim $(SOELIM_OBJS)
+	rm -f $(WWW_MANS) mandoc.tar.gz mandoc.sha256
+	rm -rf *.dSYM
+
+base-install: mandoc demandoc soelim
+	mkdir -p $(DESTDIR)$(BINDIR)
+	mkdir -p $(DESTDIR)$(SBINDIR)
+	mkdir -p $(DESTDIR)$(MANDIR)/man1
+	mkdir -p $(DESTDIR)$(MANDIR)/man5
+	mkdir -p $(DESTDIR)$(MANDIR)/man7
+	mkdir -p $(DESTDIR)$(MANDIR)/man8
+	$(INSTALL_PROGRAM) mandoc demandoc $(DESTDIR)$(BINDIR)
+	$(INSTALL_PROGRAM) soelim $(DESTDIR)$(BINDIR)/$(BINM_SOELIM)
+	cd $(DESTDIR)$(BINDIR) && $(LN) mandoc $(BINM_MAN)
+	cd $(DESTDIR)$(BINDIR) && $(LN) mandoc $(BINM_APROPOS)
+	cd $(DESTDIR)$(BINDIR) && $(LN) mandoc $(BINM_WHATIS)
+	cd $(DESTDIR)$(SBINDIR) && \
+		$(LN) ${BIN_FROM_SBIN}/mandoc $(BINM_MAKEWHATIS)
+	$(INSTALL_MAN) mandoc.1 demandoc.1 $(DESTDIR)$(MANDIR)/man1
+	$(INSTALL_MAN) soelim.1 $(DESTDIR)$(MANDIR)/man1/$(BINM_SOELIM).1
+	$(INSTALL_MAN) man.1 $(DESTDIR)$(MANDIR)/man1/$(BINM_MAN).1
+	$(INSTALL_MAN) apropos.1 $(DESTDIR)$(MANDIR)/man1/$(BINM_APROPOS).1
+	cd $(DESTDIR)$(MANDIR)/man1 && $(LN) $(BINM_APROPOS).1 $(BINM_WHATIS).1
+	$(INSTALL_MAN) man.conf.5 $(DESTDIR)$(MANDIR)/man5/$(MANM_MANCONF).5
+	$(INSTALL_MAN) mandoc.db.5 $(DESTDIR)$(MANDIR)/man5
+	$(INSTALL_MAN) man.7 $(DESTDIR)$(MANDIR)/man7/$(MANM_MAN).7
+	$(INSTALL_MAN) mdoc.7 $(DESTDIR)$(MANDIR)/man7/$(MANM_MDOC).7
+	$(INSTALL_MAN) roff.7 $(DESTDIR)$(MANDIR)/man7/$(MANM_ROFF).7
+	$(INSTALL_MAN) eqn.7 $(DESTDIR)$(MANDIR)/man7/$(MANM_EQN).7
+	$(INSTALL_MAN) tbl.7 $(DESTDIR)$(MANDIR)/man7/$(MANM_TBL).7
+	$(INSTALL_MAN) mandoc_char.7 $(DESTDIR)$(MANDIR)/man7
+	$(INSTALL_MAN) makewhatis.8 \
+		$(DESTDIR)$(MANDIR)/man8/$(BINM_MAKEWHATIS).8
+
+lib-install: libmandoc.a
+	mkdir -p $(DESTDIR)$(LIBDIR)
+	mkdir -p $(DESTDIR)$(INCLUDEDIR)
+	mkdir -p $(DESTDIR)$(MANDIR)/man3
+	$(INSTALL_LIB) libmandoc.a $(DESTDIR)$(LIBDIR)
+	$(INSTALL_LIB) man.h mandoc.h mandoc_aux.h mdoc.h roff.h \
+		$(DESTDIR)$(INCLUDEDIR)
+	$(INSTALL_MAN) mandoc.3 mandoc_escape.3 mandoc_malloc.3 \
+		mansearch.3 mchars_alloc.3 tbl.3 $(DESTDIR)$(MANDIR)/man3
+
+cgi-install: man.cgi
+	mkdir -p $(DESTDIR)$(CGIBINDIR)
+	mkdir -p $(DESTDIR)$(HTDOCDIR)
+	$(INSTALL_PROGRAM) man.cgi $(DESTDIR)$(CGIBINDIR)
+	$(INSTALL_DATA) mandoc.css $(DESTDIR)$(HTDOCDIR)
+
+catman-install: mandocd catman
+	mkdir -p $(DESTDIR)$(SBINDIR)
+	mkdir -p $(DESTDIR)$(MANDIR)/man8
+	$(INSTALL_PROGRAM) mandocd $(DESTDIR)$(SBINDIR)
+	$(INSTALL_PROGRAM) catman $(DESTDIR)$(SBINDIR)/$(BINM_CATMAN)
+	$(INSTALL_MAN) mandocd.8 $(DESTDIR)$(MANDIR)/man8
+	$(INSTALL_MAN) catman.8 $(DESTDIR)$(MANDIR)/man8/$(BINM_CATMAN).8
+
+uninstall:
+	rm -f $(DESTDIR)$(BINDIR)/mandoc
+	rm -f $(DESTDIR)$(BINDIR)/demandoc
+	rm -f $(DESTDIR)$(BINDIR)/$(BINM_SOELIM)
+	rm -f $(DESTDIR)$(BINDIR)/$(BINM_MAN)
+	rm -f $(DESTDIR)$(BINDIR)/$(BINM_APROPOS)
+	rm -f $(DESTDIR)$(BINDIR)/$(BINM_WHATIS)
+	rm -f $(DESTDIR)$(SBINDIR)/$(BINM_MAKEWHATIS)
+	rm -f $(DESTDIR)$(MANDIR)/man1/mandoc.1
+	rm -f $(DESTDIR)$(MANDIR)/man1/demandoc.1
+	rm -f $(DESTDIR)$(MANDIR)/man1/$(BINM_SOELIM).1
+	rm -f $(DESTDIR)$(MANDIR)/man1/$(BINM_MAN).1
+	rm -f $(DESTDIR)$(MANDIR)/man1/$(BINM_APROPOS).1
+	rm -f $(DESTDIR)$(MANDIR)/man1/$(BINM_WHATIS).1
+	rm -f $(DESTDIR)$(MANDIR)/man5/$(MANM_MANCONF).5
+	rm -f $(DESTDIR)$(MANDIR)/man5/mandoc.db.5
+	rm -f $(DESTDIR)$(MANDIR)/man7/$(MANM_MAN).7
+	rm -f $(DESTDIR)$(MANDIR)/man7/$(MANM_MDOC).7
+	rm -f $(DESTDIR)$(MANDIR)/man7/$(MANM_ROFF).7
+	rm -f $(DESTDIR)$(MANDIR)/man7/$(MANM_EQN).7
+	rm -f $(DESTDIR)$(MANDIR)/man7/$(MANM_TBL).7
+	rm -f $(DESTDIR)$(MANDIR)/man7/mandoc_char.7
+	rm -f $(DESTDIR)$(MANDIR)/man8/$(BINM_MAKEWHATIS).8
+	rm -f $(DESTDIR)$(CGIBINDIR)/man.cgi
+	rm -f $(DESTDIR)$(HTDOCDIR)/mandoc.css
+	rm -f $(DESTDIR)$(SBINDIR)/mandocd
+	rm -f $(DESTDIR)$(SBINDIR)/$(BINM_CATMAN)
+	rm -f $(DESTDIR)$(MANDIR)/man8/mandocd.8
+	rm -f $(DESTDIR)$(MANDIR)/man8/$(BINM_CATMAN).8
+	rm -f $(DESTDIR)$(LIBDIR)/libmandoc.a
+	rm -f $(DESTDIR)$(MANDIR)/man3/mandoc.3
+	rm -f $(DESTDIR)$(MANDIR)/man3/mandoc_escape.3
+	rm -f $(DESTDIR)$(MANDIR)/man3/mandoc_malloc.3
+	rm -f $(DESTDIR)$(MANDIR)/man3/mansearch.3
+	rm -f $(DESTDIR)$(MANDIR)/man3/mchars_alloc.3
+	rm -f $(DESTDIR)$(MANDIR)/man3/tbl.3
+	rm -f $(DESTDIR)$(INCLUDEDIR)/man.h
+	rm -f $(DESTDIR)$(INCLUDEDIR)/mandoc.h
+	rm -f $(DESTDIR)$(INCLUDEDIR)/mandoc_aux.h
+	rm -f $(DESTDIR)$(INCLUDEDIR)/mdoc.h
+	rm -f $(DESTDIR)$(INCLUDEDIR)/roff.h
+	[ ! -e $(DESTDIR)$(INCLUDEDIR) ] || rmdir $(DESTDIR)$(INCLUDEDIR)
+
+regress: all
+	cd regress && ./regress.pl
+
+regress-clean:
+	cd regress && ./regress.pl . clean
+
+Makefile.local config.h: configure $(TESTSRCS)
+	@echo "$@ is out of date; please run ./configure"
+	@exit 1
+
+libmandoc.a: $(COMPAT_OBJS) $(LIBMANDOC_OBJS)
+	ar rs $@ $(COMPAT_OBJS) $(LIBMANDOC_OBJS)
+
+mandoc: $(MAIN_OBJS) libmandoc.a
+	$(CC) -o $@ $(LDFLAGS) $(MAIN_OBJS) libmandoc.a $(LDADD)
+
+man.cgi: $(CGI_OBJS) libmandoc.a
+	$(CC) $(STATIC) -o $@ $(LDFLAGS) $(CGI_OBJS) libmandoc.a $(LDADD)
+
+mandocd: $(MANDOCD_OBJS) libmandoc.a
+	$(CC) -o $@ $(LDFLAGS) $(MANDOCD_OBJS) libmandoc.a $(LDADD)
+
+catman: catman.o libmandoc.a
+	$(CC) -o $@ $(LDFLAGS) catman.o libmandoc.a $(LDADD)
+
+demandoc: $(DEMANDOC_OBJS) libmandoc.a
+	$(CC) -o $@ $(LDFLAGS) $(DEMANDOC_OBJS) libmandoc.a $(LDADD)
+
+soelim: $(SOELIM_OBJS)
+	$(CC) -o $@ $(LDFLAGS) $(SOELIM_OBJS)
+
+# --- maintainer targets ---
+
+www-install: www
+	$(INSTALL_DATA) $(WWW_MANS) mandoc.css $(HTDOCDIR)
+
+depend: config.h
+	mkdep -f Makefile.depend $(CFLAGS) $(SRCS)
+	perl -e 'undef $$/; $$_ = <>; s|/usr/include/\S+||g; \
+		s|\\\n||g; s|  +| |g; s| $$||mg; print;' \
+		Makefile.depend > Makefile.tmp
+	mv Makefile.tmp Makefile.depend
+
+regress-distclean:
+	@find regress \
+		-name '.#*' -o \
+		-name '*.orig' -o \
+		-name '*.rej' -o \
+		-name '*.core' \
+		-exec rm -i {} \;
+
+regress-distcheck:
+	@find regress ! -type d ! -type f
+	@find regress -type f \
+		! -path '*/CVS/*' \
+		! -name Makefile \
+		! -name Makefile.inc \
+		! -name '*.in' \
+		! -name '*.out_ascii' \
+		! -name '*.out_utf8' \
+		! -name '*.out_html' \
+		! -name '*.out_markdown' \
+		! -name '*.out_lint' \
+		! -path regress/regress.pl \
+		! -path regress/regress.pl.1
+
+dist: mandoc.sha256
+
+mandoc.sha256: mandoc.tar.gz
+	sha256 mandoc.tar.gz > $@
+
+mandoc.tar.gz: $(DISTFILES)
+	ls regress/*/*/*.mandoc_* && exit 1 || true
+	mkdir -p .dist/mandoc-$(VERSION)/
+	$(INSTALL) -m 0644 $(DISTFILES) .dist/mandoc-$(VERSION)
+	cp -pR regress .dist/mandoc-$(VERSION)
+	find .dist/mandoc-$(VERSION)/regress \
+	    -type d -name CVS -print0 | xargs -0 rm -rf
+	chmod 755 .dist/mandoc-$(VERSION)/configure
+	( cd .dist/ && tar zcf ../$@ mandoc-$(VERSION) )
+	rm -rf .dist/
+
+# === SUFFIX RULES =====================================================
+
+.SUFFIXES:	 .1       .3       .5       .7       .8       .h
+.SUFFIXES:	 .1.html  .3.html  .5.html  .7.html  .8.html  .h.html
+
+.h.h.html:
+	highlight -I $< > $@
+
+.1.1.html .3.3.html .5.5.html .7.7.html .8.8.html: mandoc
+	./mandoc -Thtml -Wall,stop \
+		-Ostyle=mandoc.css,man=%N.%S.html,includes=%I.html $< > $@

Added: vendor/mandoc/dist/Makefile.depend
===================================================================
--- vendor/mandoc/dist/Makefile.depend	                        (rev 0)
+++ vendor/mandoc/dist/Makefile.depend	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,78 @@
+att.o: att.c config.h mandoc.h roff.h mdoc.h libmdoc.h
+catman.o: catman.c config.h compat_fts.h
+cgi.o: cgi.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h man.h main.h manconf.h mansearch.h cgi.h
+chars.o: chars.c config.h mandoc.h mandoc_aux.h mandoc_ohash.h compat_ohash.h libmandoc.h
+compat_err.o: compat_err.c config.h
+compat_fts.o: compat_fts.c config.h compat_fts.h
+compat_getline.o: compat_getline.c config.h
+compat_getsubopt.o: compat_getsubopt.c config.h
+compat_isblank.o: compat_isblank.c config.h
+compat_mkdtemp.o: compat_mkdtemp.c config.h
+compat_ohash.o: compat_ohash.c config.h compat_ohash.h
+compat_progname.o: compat_progname.c config.h
+compat_reallocarray.o: compat_reallocarray.c config.h
+compat_recallocarray.o: compat_recallocarray.c config.h
+compat_strcasestr.o: compat_strcasestr.c config.h
+compat_stringlist.o: compat_stringlist.c config.h compat_stringlist.h
+compat_strlcat.o: compat_strlcat.c config.h
+compat_strlcpy.o: compat_strlcpy.c config.h
+compat_strsep.o: compat_strsep.c config.h
+compat_strtonum.o: compat_strtonum.c config.h
+compat_vasprintf.o: compat_vasprintf.c config.h
+dba.o: dba.c config.h mandoc_aux.h mandoc_ohash.h compat_ohash.h mansearch.h dba_write.h dba_array.h dba.h
+dba_array.o: dba_array.c mandoc_aux.h dba_write.h dba_array.h
+dba_read.o: dba_read.c mandoc_aux.h mansearch.h dba_array.h dba.h dbm.h
+dba_write.o: dba_write.c config.h dba_write.h
+dbm.o: dbm.c config.h mansearch.h dbm_map.h dbm.h
+dbm_map.o: dbm_map.c config.h mansearch.h dbm_map.h dbm.h
+demandoc.o: demandoc.c config.h mandoc.h roff.h man.h mdoc.h
+eqn.o: eqn.c config.h mandoc_aux.h mandoc.h roff.h libmandoc.h libroff.h
+eqn_html.o: eqn_html.c config.h mandoc.h out.h html.h
+eqn_term.o: eqn_term.c config.h mandoc.h out.h term.h
+html.o: html.c config.h mandoc_aux.h mandoc.h roff.h out.h html.h manconf.h main.h
+lib.o: lib.c config.h mandoc.h roff.h mdoc.h libmdoc.h lib.in
+main.o: main.c config.h mandoc_aux.h mandoc.h mandoc_xr.h roff.h mdoc.h man.h tag.h main.h manconf.h mansearch.h
+man.o: man.c config.h mandoc_aux.h mandoc.h roff.h man.h libmandoc.h roff_int.h libman.h
+man_html.o: man_html.c config.h mandoc_aux.h mandoc.h roff.h man.h out.h html.h main.h
+man_macro.o: man_macro.c config.h mandoc.h roff.h man.h libmandoc.h roff_int.h libman.h
+man_term.o: man_term.c config.h mandoc_aux.h mandoc.h roff.h man.h out.h term.h main.h
+man_validate.o: man_validate.c config.h mandoc_aux.h mandoc.h roff.h man.h libmandoc.h roff_int.h libman.h
+mandoc.o: mandoc.c config.h mandoc_aux.h mandoc.h roff.h libmandoc.h
+mandoc_aux.o: mandoc_aux.c config.h mandoc.h mandoc_aux.h
+mandoc_ohash.o: mandoc_ohash.c mandoc_aux.h mandoc_ohash.h compat_ohash.h
+mandoc_xr.o: mandoc_xr.c mandoc_aux.h mandoc_ohash.h compat_ohash.h mandoc_xr.h
+mandocd.o: mandocd.c config.h mandoc.h roff.h mdoc.h man.h main.h manconf.h
+mandocdb.o: mandocdb.c config.h compat_fts.h mandoc_aux.h mandoc_ohash.h compat_ohash.h mandoc.h roff.h mdoc.h man.h manconf.h mansearch.h dba_array.h dba.h
+manpath.o: manpath.c config.h mandoc_aux.h manconf.h
+mansearch.o: mansearch.c config.h mandoc.h mandoc_aux.h mandoc_ohash.h compat_ohash.h manconf.h mansearch.h dbm.h
+mdoc.o: mdoc.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+mdoc_argv.o: mdoc_argv.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+mdoc_html.o: mdoc_html.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h out.h html.h main.h
+mdoc_macro.o: mdoc_macro.c config.h mandoc.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+mdoc_man.o: mdoc_man.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h man.h out.h main.h
+mdoc_markdown.o: mdoc_markdown.c mandoc_aux.h mandoc.h roff.h mdoc.h main.h
+mdoc_state.o: mdoc_state.c mandoc.h roff.h mdoc.h libmandoc.h libmdoc.h
+mdoc_term.o: mdoc_term.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h out.h term.h tag.h main.h
+mdoc_validate.o: mdoc_validate.c config.h mandoc_aux.h mandoc.h mandoc_xr.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+msec.o: msec.c config.h mandoc.h libmandoc.h msec.in
+out.o: out.c config.h mandoc_aux.h mandoc.h out.h
+preconv.o: preconv.c config.h mandoc.h libmandoc.h
+read.o: read.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h man.h libmandoc.h
+roff.o: roff.c config.h mandoc.h mandoc_aux.h mandoc_ohash.h compat_ohash.h roff.h libmandoc.h roff_int.h libroff.h predefs.in
+roff_html.o: roff_html.c mandoc.h roff.h out.h html.h
+roff_term.o: roff_term.c mandoc.h roff.h out.h term.h
+roff_validate.o: roff_validate.c mandoc.h roff.h libmandoc.h roff_int.h
+soelim.o: soelim.c config.h compat_stringlist.h
+st.o: st.c config.h mandoc.h roff.h mdoc.h libmdoc.h st.in
+tag.o: tag.c config.h mandoc_aux.h mandoc_ohash.h compat_ohash.h tag.h
+tbl.o: tbl.c config.h mandoc.h mandoc_aux.h libmandoc.h libroff.h
+tbl_data.o: tbl_data.c config.h mandoc.h mandoc_aux.h libmandoc.h libroff.h
+tbl_html.o: tbl_html.c config.h mandoc.h out.h html.h
+tbl_layout.o: tbl_layout.c config.h mandoc.h mandoc_aux.h libmandoc.h libroff.h
+tbl_opts.o: tbl_opts.c config.h mandoc.h libmandoc.h libroff.h
+tbl_term.o: tbl_term.c config.h mandoc.h out.h term.h
+term.o: term.c config.h mandoc.h mandoc_aux.h out.h term.h main.h
+term_ascii.o: term_ascii.c config.h mandoc.h mandoc_aux.h out.h term.h manconf.h main.h
+term_ps.o: term_ps.c config.h mandoc_aux.h out.h term.h manconf.h main.h
+term_tab.o: term_tab.c mandoc_aux.h out.h term.h
+tree.o: tree.c config.h mandoc.h roff.h mdoc.h man.h main.h

Added: vendor/mandoc/dist/Makefile.local
===================================================================
--- vendor/mandoc/dist/Makefile.local	                        (rev 0)
+++ vendor/mandoc/dist/Makefile.local	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+BUILD_TARGETS	= 
+INSTALL_TARGETS	= 
+CC		= cc
+CFLAGS		= -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter
+LDADD		=     -lz
+LDFLAGS		= 
+STATIC		= -static
+PREFIX		= /usr/local
+BINDIR		= /usr/local/bin
+SBINDIR		= /usr/local/sbin
+BIN_FROM_SBIN	= ../bin
+INCLUDEDIR	= /usr/local/include/mandoc
+LIBDIR		= /usr/local/lib/mandoc
+MANDIR		= /usr/local/man
+WWWPREFIX	= /var/www
+HTDOCDIR	= /var/www/htdocs
+CGIBINDIR	= /var/www/cgi-bin
+BINM_APROPOS	= apropos
+BINM_CATMAN	= catman
+BINM_MAKEWHATIS	= makewhatis
+BINM_MAN	= man
+BINM_SOELIM	= soelim
+BINM_WHATIS	= whatis
+MANM_MAN	= man
+MANM_MANCONF	= man.conf
+MANM_MDOC	= mdoc
+MANM_ROFF	= roff
+MANM_EQN	= eqn
+MANM_TBL	= tbl
+INSTALL		= install
+INSTALL_PROGRAM	= install -m 0555
+INSTALL_LIB	= install -m 0444
+INSTALL_MAN	= install -m 0444
+INSTALL_DATA	= install -m 0444
+LN		= ln -f

Added: vendor/mandoc/dist/NEWS
===================================================================
--- vendor/mandoc/dist/NEWS	                        (rev 0)
+++ vendor/mandoc/dist/NEWS	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,993 @@
+$Id: NEWS,v 1.26 2017/07/28 14:57:56 schwarze Exp $
+
+This file lists the most important changes in the mandoc.bsd.lv distribution.
+
+Changes in version 1.14.3, released on August 5, 2017
+
+    --- BUG FIXES ---
+ * man(7): Do not crash with out-of-bounds read access to a constant
+   array if .sp or a blank line immediately precedes .SS or .SH.
+ * mdoc(7): Do not crash with out-of-bounds read access to a constant
+   array if .sp or a blank line precede the first .Sh macro.
+ * tbl(7): Ignore explicitly specified negative column widths rather than
+   wrapping around to huge numbers and risking memory exhaustion.
+ * man(1): No longer use names that only occur in the SYNOPSIS section.
+   Gets rid of some surprising behaviour and bogus warnings.
+    --- THANKS TO ---
+   Leah Neukirchen (Void Linux), Markus Waldeck (Debian),
+   Peter Bui (nd.edu), and Yuri Pankov (illumos) for bug reports.
+
+Changes in version 1.14.2, released on July 28, 2017
+
+    --- MAJOR NEW FEATURES ---
+ * New mdoc(7) -Tmarkdown output mode.
+ * For -Thtml, implement internal hyperlinks pointing to authoritative
+   definitions of various syntax elements, similar to the ctags(1)-like
+   less(1) :t internal searching in terminal mode.
+ * Provide a superset of the functionality of the former mdoclint(1)
+   utility and a new -Wstyle message level with several new messages,
+   including validity checking of .Xr cross references.
+ * tbl(7): Implement automatic line breaking inside individual table
+   cells, and several other formatting improvements.
+ * eqn(7): Complete rewrite of the lexer, resulting in several bugfixes.
+ * Continue parser unification, in particular allowing generation
+   of syntax tree nodes on the roff(7) level, allowing implementation
+   of many additional roff requests.
+    --- REMOVED FUNCTIONALITY ---
+ * Delete the manpage(1) utility.  It was never enabled in any release.
+ * Delete the -Txhtml command line option.  It has been an obsolete
+   alias for the -Thtml output mode for more than two years.
+    --- MINOR NEW FEATURES ---
+ * -Tlint now puts parser messages on stdout instead of stderr,
+   making commands like "man -l -Tlint *.1" useful.
+ * mdoc(7): Various .Lk formatting improvements.
+ * mdoc(7) -Thtml: Better CSS for .Bl lists.
+ * man(7): Implement the .MT/.ME block macro (mailto hyperlink).
+ * man(7): Implement the .DT macro (restore default tab positions).
+ * man(7): Improved support for manuals generated with reStructuredText
+   by partial support for the \n[an-margin] number register.
+ * man(7) -Thtml: Support deep linking to .SH and .SS headers.
+ * tbl(7): Implement the "allbox" table option.
+ * tbl(7): Implement the column spacing and the 'w' (minimum column
+   width) layout modifiers.
+ * tbl(7): Significant improvements of the manual page.
+ * eqn(7): Much improved font selection, including recognition of
+   well-known function names, and a few other formatting improvements.
+ * eqn(7) -Thtml: Use <mn> and <mo> in addition to <mi>.
+ * roff(7): Implement the .ce (centering), .mc (margin character),
+   .rj (right justify), .ta (define tab stops), .ti (temporary indent),
+   .als (macro alias), .ec and .eo (escape character control),
+   .po (page offset), and .rn (macro rename) requests.
+ * roff(7) .am: Implement appending to mdoc(7) and man(7) macros.
+ * roff(7): implement the \h (horizontol motion), \l (horizontal
+   line drawing), and \p (break output line) escape sequences,
+   and also several additional character escape sequences.
+ * roff(7): Implement the 'd' conditional (macro or string defined).
+ * man.cgi(8) now uses pledge(2), too.
+ * regress.pl(1): simpler user interface, better summary output,
+   simpler code, and no more recursion.
+    --- THANKS TO ---
+ * Anthony Bentley (OpenBSD) for the implementation of .MT/.ME,
+   reports of many bugs and missing features, and suggestions
+   for a number of feature and documentation improvements.
+ * Sebastien Marie (OpenBSD) for two source code patches and
+   for some useful discussions.
+ * Florian Obser (OpenBSD) for a bugfix patch and a bug report.
+ * Jonathan Gray (OpenBSD) for several bug reports from afl(1)
+   and several more from static analysis tools.
+ * Theo Buehler (OpenBSD) for several bug reports, most from afl(1).
+ * Jason McIntyre (OpenBSD) for many useful discussions about a
+   wide variety of topics, lots of continuous testing, a number of
+   bug reports, and some suggestions for messages and documentation.
+ * Thomas Klausner (NetBSD) for lots of help while migrating
+   mdoclint(1) functionality to mandoc -Tlint, for suggesting
+   several useful new messages, and for release testing.
+ * Reyk Floeter (OpenBSD) and Vsevolod Stakhov (FreeBSD) for
+   suggesting a markdown output mode.
+ * Thomas Guettler for suggesting -Thtml internal hyperlinks.
+ * Yuri Pankov (Illumos) for inspiring new warning messages and
+   for extensive release testing.
+ * Anton Lindqvist and TJ Townsend (both OpenBSD) and Jan Stary
+   for multiple bug reports.
+ * Leah Neukirchen (Void Linux) for bug reports and release testing.
+ * Michael Stapelberg (Debian) for suggesting feature improvements
+   and for release testing.
+ * Martin Natano and Theo de Raadt (both OpenBSD), Andreas Voegele,
+   Gabriel Guzman, Gonzalo Tornaria, Markus Waldeck, and Raf Czlonka
+   for bug reports.
+ * Antoine Jacoutot (OpenBSD) and Steffen Nurpmeso for suggesting
+   feature improvements.
+ * Dag-Erling Smoergrav (FreeBSD) for inspiring new warning messages.
+ * Ted Unangst and Marc Espie (OpenBSD) for providing useful ideas.
+ * Svyatoslav Mishyn (Crux Linux) for release testing.
+ * Carsten Kunze (Heirloom roff) for help keeping mandoc and groff
+   compatible and for committing some of my patches to groff.
+
+Changes in version 1.14.1, released on February 21, 2017
+
+    --- MAJOR NEW FEATURES ---
+ * apropos(1): Reimplement complete semantic search functionality
+   without the dependency on SQLite3, using only POSIX APIs.
+   This comes with a completely new mandoc.db(5) file format.
+ * man(1): Support more than one tag entry for the same search term,
+   plus some minor improvements to the less(1) :t support.
+ * -Thtml: Use real macro names for CSS classes.
+   Systematic cleanup of and many improvements to mandoc.css.
+ * -Thtml: Produce human readable HTML code by using indentation
+   and better line breaks.  Improve various HTML elements,
+   and trim several useless ones.
+ * New catman(8) utility, still somewhat experimental.
+ * Now includes a portable version of the OpenBSD mandoc regression
+   suite, see regress/regress.pl.1 for details.
+    --- REMOVED FUNCTIONALITY ---
+ * Operating systems that don't provide mmap(3) are no longer supported.
+ * Drop support for manpath(1).  Even if your system has manpath(1),
+   it is simpler to use MANPATH_DEFAULT in configure.local for
+   operating system defaults, man.conf(5) for machine-specific
+   modifications, and ${MANPATH}, -m, and -M for user preferences
+   than to bother with the complexity of manpath(1).
+ * makewhatis(8) -p: No longer warn about missing MLINKS since these
+   are no longer needed for anything.
+    --- MINOR NEW FEATURES ---
+ * mdoc(7): Warn about invalid punctuation and content below NAME.
+ * mdoc(7): Warn about .Xr lacking the second argument (section).
+ * mdoc(7): Warn about violations of the rule "new sentence, new line".
+ * roff(7): Warn about trailing whitespace at the end of comments.
+ * mdoc(7): Improve rendering of double quotes.
+ * mdoc(7): Always do text production in the validator, never in the
+   formatters.  Cleaner, simpler, shorter, helps NetBSD apropos(1)
+   and also makes -Ttree output more useful.
+ * -Ttree: Show metadata and some additional node flags.
+   New -Onoval output option to show the unvalidated tree.
+    --- RELIABILITY BUGFIXES ---
+ * man(1): Make "man -l" work with standard input from a pipe or file,
+   as long as standard output is a terminal.
+ * man(7): Fix out of bounds read access if a text node immediately
+   preceded the first .SH header.
+ * mdoc(7): Fix out of bounds read access for .Bl without a type
+   but with a width.
+ * mdoc(7): Fix out of bounds read access for .Bl -column starting
+   with a tab character instead of a child .It macro.
+ * mdoc(7): Fix syntax tree corruption leading to segfaults caused
+   by stray block end macros in nested blocks of mismatching type.
+ * man(1): Fix NULL dereference when the first of multiple pages
+   shown was preformatted.
+ * mdoc(7): Fix syntax tree corruption leading to NULL dereference
+   caused by partial implicit macros inside .Bl -column table cells.
+ * mdoc(7): Fix syntax tree corruption leading to NULL dereference
+   for macro sequences like .Bl .Bl .It Bo .El .It.
+ * mdoc(7): Fix syntax tree corruption leading to NULL dereference
+   caused by .Ta following a nested .Bl -column breaking another block.
+ * mdoc(7): Fix syntax tree corruption sometimes leading to NULL
+   dereference caused by indirectly broken .Nd or .Nm blocks.
+ * mdoc(7) -Thtml: Fix a NULL dereference for .Bl -column with 0 columns.
+ * mdoc(7): Fix NULL dereference in some specific cases of a
+   block-end macro calling another block-end macro.
+ * mdoc(7): Fix NULL dereference if the only child of the head
+   of the first .Sh was an empty in-line macro.
+ * eqn(7): Fix NULL dereference in the terminal formatter
+   for empty matrices and empty square roots.
+ * mdoc(7): Fix an assertion failure for a .Bd without a type that
+   breaks another block.
+ * mdoc(7): Fix an assertion failure that happened for some .Bl -column
+   lists containing a column width of "-4n", "-3n", or "-2n".
+ * mdoc(7): Fix an assertion failure caused by .Bl -column without .It
+   but containing eqn(7) or tbl(7) code.
+ * roff(7): Fix an assertion failure caused by \z\[u00FF] with -Tps/-Tpdf.
+ * roff(7): Fix an assertion failures caused by whitespace inside \o''
+   (overstrike) sequences.
+ * -Thtml: Fix an assertion failure caused by -Oman or -Oincludes of
+   excessive length.
+    --- PORTABILITY IMPROVEMENTS ---
+ * man(1): Do not mix stdio narrow and wide stream orientation
+   on stdout, which could cause output corruption on glibc.
+ * mandoc(1): Autodetect a suitable locale for -Tutf8 mode.
+ * ./configure: Autodetect whether PATH_MAX and O_DIRECTORY are defined.
+ * ./configure: Autodetect if nanosleep(3) needs -lrt.
+ * ./configure: Provide an ${LN} configuration variable.
+ * ./configure: Put compiler arguments that may contain -l at the end.
+    --- MINOR BUGFIXES ---
+ * mdoc(7): Fix SYNOPSIS output if the first child of .Nm is a macro.
+ * mdoc(7) -Thtml: Improve formatting of .Bl -tag with short tags.
+ * man(7) -Thtml: Preserve whitespace in .nf (nofill) mode.
+ * mandoc(1): Error out on invalid output options on the command line.
+    --- STRUCTURAL CHANGES, no functional change ---
+ * Redesign part of the mandoc_html(3) interfaces, making them much
+   easier to use and reducing the amount of code by a few hundred lines.
+    --- THANKS TO ---
+ * Michael Stapelberg (Debian) for designing the new mandocd(8)
+   and parts of the new catman(8), for release testing, and for a
+   number of patches and bug reports.
+ * Baptiste Daroussin (FreeBSD) for profiling the new makewhatis(8)
+   implementation and suggesting an algorithmic improvement which
+   more than doubled performance, and for a few bug reports.
+ * Ed Maste (FreeBSD) for an important patch improving reproducibility
+   of builds in makewhatis(8), and for a few bug reports.
+ * Theo Buehler (OpenBSD) for almost twenty important bug reports,
+   most of them found by systematic afl(1) fuzzing.
+ * Benny Lofgren, David Dahlberg, and in particular Vadim Zhukov
+   for crucial help in getting .Bl -tag CSS formatting fixed.
+ * Svyatoslav Mishyn (Crux Linux) for an initial version of the
+   patch to autodetect a suitable locale for -Tutf8 mode
+   and for release testing.
+ * Jason McIntyre (OpenBSD) for multiple useful discussions
+   and a number of bug reports.
+ * Sevan Janiyan (NetBSD) for extensive release testing and multiple
+   bug reports.
+ * Thomas Klausner and Christos Zoulas (NetBSD), Yuri Pankov (illumos),
+   and Leah Neukirchen (Void Linux) for release testing and bug reports.
+ * Ulrich Spoerlein (FreeBSD) for release testing.
+ * Alexander Bluhm, Andrew Fresh, Antoine Jacoutot, Antony Bentley,
+   Christian Weisgerber, Jonathan Gray, Marc Espie, Martijn van Duren,
+   Stuart Henderson, Ted Unangst, Theo de Raadt (OpenBSD), Abhinav
+   Upadhyay, Kamil Rytarowski (NetBSD), Aaron M. Ucko, Bdale Garbee,
+   Reiner Herrmann, Shane Kerr (Debian), Daniel Sabogal (Alpine Linux),
+   Carsten Kunze (Heirloom roff), Kristaps Dzonsons (bsd.lv),
+   Anton Lindqvist, Jan Stary, Jeremy A. Mates, Mark Patruck,
+   Pavan Maddamsetti, Sean Levy <attila at stalphonsos.com>, and
+   Tiago Silva for bug reports.
+ * Brent Cook, Marc Espie, Philip Guenther, Todd Miller (OpenBSD)
+   and Markus Waldeck for useful discussions.
+ * And as usual, OpenCSW for providing me with a Solaris 9/10/11
+   testing environment.
+
+Changes in version 1.13.4, released on July 14, 2016
+
+    --- MAJOR NEW FEATURES ---
+ * man.conf(5): Design and implement a simpler configuration file format.
+ * man(1): Leverage less(1) -T and :t in a way resembling ctags(1)
+   to jump to the definitions of various terms inside manual pages.
+ * soelim(1): New implementation by Baptiste Daroussin.
+ * privilege limitation: Use OpenBSD pledge(2) or OS X sandbox_init(3)
+   when available.
+ * man.cgi(8): Support short URIs like http://man.openbsd.org/mdoc .
+ * mandoc.css: Use one unified stylesheet rather than three different ones.
+    --- MAJOR FUNCTIONALLY RELEVANT BUGFIXES ---
+ * mdoc(7): Fix multiple aspects of SYNOPSIS .Nm formatting.
+ * man(1): Fix process group handling, avoiding unclean shutdowns.
+    --- PORTABILITY IMPROVEMENTS ---
+ * Correctly use the ohash(3) compatibility implementation
+   even when building without SQLite support.
+ * Add compat glue for building on Solaris 9 and 10.
+ * Let ./configure select a supported RE syntax for word boundaries.
+ * Support LDFLAGS, to be used for example for hardening options.
+ * Avoid mixing putchar(3) and putwchar(3) on the same file descriptor,
+   it resulted in output corruption on some platforms.
+ * Avoid reusing va_lists, use va_copy(3) for better portability.
+ * Do not hardcode the path to the more(1) program.
+    --- MINOR NEW FEATURES ---
+ * roff(7): Implement \n(.$ (number of macro arguments).
+ * roff(7): Fully implement \z (do not advance cursor).
+ * roff(7): Implement the `r'  conditional (register exists).
+ * roff(7): Implement \\$* (interpolate all arguments).
+ * roff(7): Parse and ignore \, and \/ (italic corrections).
+ * When there is no -m, no -M, no MANPATH and no /etc/man.conf,
+   fall back to /usr/share/man:/usr/X11R6/man:/usr/local/man.
+ * man(1): Give manuals in purely numerical sections priority over
+   manuals of the same name in sections with an alphabetical suffix.
+ * man.cgi(8): Support "header.html" and "footer.html".
+ * man.cgi(8): Set the "autofocus" attribute on the query text box.
+ * man.cgi(8): Simplify the search form, drop two useless buttons.
+ * man.cgi(8): Delete the pseudo-manpath "mandoc", assume that
+   apropos(1) and man.cgi(8) are installed in the default manpath.
+    --- RELIABILITY BUGFIXES ---
+ * mdoc(7): Avoid a use after free and an assertion failure when nodes
+   are deleted during validation.
+ * mdoc(7): Avoid a NULL pointer access when .Bd has no arguments.
+ * mdoc(7): Avoid a NULL pointer access triggered by mismatching end macros.
+ * mdoc(7): Avoid an assertion when .Fo has no argument.
+ * mdoc(7): Avoid an assertion when .Ta<tab> occurs in .Bl -column.
+ * mdoc(7): Avoid an assertion when a body gets broken and has a tail.
+ * roff(7): Avoid an assertion caused by blanks inside \o.
+ * roff(7): Make .so links to gziped manuals work without mandoc.db(5).
+ * tbl(7): Avoid a use after free when the last line of a layout is empty.
+ * eqn(7): Avoid an infinite loop caused by recursive "define".
+ * makewhatis(8): Avoid a segfault caused by unusual directory structures.
+ * Fix handling of leading, trailing, and double colons in MANPATH and -m.
+    --- MINOR BUGFIXES ---
+ * mdoc(7): Put arguments to end macros of broken partial explicit blocks
+   inside the breaking block.
+ * mdoc(7): Let .Dv force normal font.
+ * mdoc(7): Make trailing whitespace significant in .Bl -tag widths.
+ * mdoc(7): Fix macro interpretation around tabs in .Bl -column.
+ * man(7): Use the default width for .RS without arguments.
+ * man(7): On a new RS nesting level, the saved width starts from
+   the default width, not from the saved width of the previous level.
+ * man(7): Allow .PD in next-line scope.
+ * man(7): Improve handling of empty .HP.
+ * man(7): Improve formatting of .br and .sp inside .HP.
+ * man(7): Do not mistreat empty arguments to font alternating
+   macros as vertical spacing requests.
+ * man(7): Allow fill mode changes in tagged paragraph next-line scope.
+ * man(7): Fix minor bugs in block rewinding and simplify the related code.
+ * man(7): Add missing line breaks before subsection headers.
+ * man(7): Give section and subsection headers hanging indentation.
+ * man(7): Make trailing whitespace significant in .TP widths.
+ * roff(7): Don't allow breaking the output line after hyphens
+   that immediately follow escape sequences.
+ * roff(7): Ignore blank characters at the beginning of conditional blocks.
+ * roff(7): Escape breakable hyphens only after handling input line traps.
+ * roff(7): Reject \[uD800] to \[uDFFF] (surrogates) in the parser.
+ * tbl(7): Allow more than one data field after T} on the same input line.
+ * terminal output: Apply bold and italic to non-ASCII Unicode codepoints.
+ * terminal output: Improve rounding rules for horizontal scaling widths.
+ * HTML output: Render ASCII_NBRSP as " ", not "-".
+ * man(1): Do not match the first part of a name if it continues with a dot.
+ * man(1): Keep working even if the current directory is unusable.
+ * man(1): Better error message when $PAGER is invalid.
+ * makewhatis(8): Improve handling of .Va and .Vt macros.
+ * apropos(1): Print "nothing appropriate" to stderr when appropriate.
+ * apropos(1): Abort with a useful error message when elementary
+   database operations like preparing queries or binding variables fail.
+    --- STRUCTURAL CHANGES, no functional change ---
+ * mdoc(7) and man(7): Unified data structures struct roff_node etc.
+ * mdoc(7) and man(7): Unified node handling library in roff.c.
+ * mdoc(7) and man(7): Seperate validation phase from parsing.
+ * roff(7): Major character table cleanup.
+ * Link with libz rather than forking gunzip(1).
+    --- THANKS TO ---
+ * Baptiste Daroussin (FreeBSD) for the new soelim(1)
+   and for release testing.
+ * Anthony Bentley (OpenBSD) for unifying mandoc.css, two nice
+   patches for man.cgi(8), some documentation patches, some bug
+   reports, and various useful discussions.
+ * Todd Miller (OpenBSD) for lots of help with process group and
+   signal handling, a few patches, some bug reports and some useful
+   discussions.
+ * Jonathan Gray (OpenBSD) for yet more testing with afl(1)
+   again resulting in more than half a dozen important bug reports.
+ * Svyatoslav Mishyn (Crux Linux) for some patches, several bug
+   reports, and extensive release testing.
+ * Leah Neukirchen (Void Linux) for a number of compatibility
+   patches and suggestions and several bug reports.
+ * Christos Zoulas (NetBSD) for a bug fix patch and some useful
+   suggestions for cleanup.
+ * Florian Obser (OpenBSD) for a bugfix patch and some bug reports.
+ * Sevan Janiyan for help with Solaris compatibility and release
+   testing on many platforms.
+ * Jan Holzhueter and OpenCSW in general for help with Solaris
+   compatibility, and for providing me with a Solaris 9/10/11 testing
+   environment.
+ * Michael McConville (OpenBSD) for some simple cleanup patches.
+ * Thomas Klausner (NetBSD) for some bug reports and release testing.
+ * Christian Weisgerber, Dmitrij Czarkoff, Igor Sobrado,
+   Ken Westerback, Marc Espie, Mike Belopuhov, Rafael Neves,
+   Ted Unangst, Tim van der Molen, Theo Buehler, Theo de Raadt
+   (OpenBSD), Kurt Jaeger, Dag Erling Smoergrav (FreeBSD),
+   Joerg Sonnenberger (NetBSD), Carsten Kunze (Heirloom troff),
+   Daniel Levai, Fabian Raetz, Jan Stary, Jean-Yves Migeon,
+   Lorenzo Beretta, Markus Waldeck, Maxim Belooussov, Michael Reed,
+   Peter Bray, and Serguey Parkhomovsky for bug reports and feature
+   suggestions.
+ * Alexander Hall, Andrew Fresh, Antoine Jacoutot, Doug Hogan,
+   Jason McIntyre, Jasper Lievisse Adriaanse, Kent Spillner,
+   Nicholas Marriott, Peter Hessler, Sebastien Marie, Stefan Sperling,
+   and Theo de Raadt (OpenBSD) for helpful discussions and feedback.
+
+Changes in version 1.13.3, released on March 13, 2015
+
+    --- MAJOR NEW FEATURES ---
+ * When a manual is missing from an outdated database, let man(1)
+   show it anyway, using a KISS file system lookup as a fallback.
+ * Use this to always provide man(1), even without database support.
+ * Fatal errors no longer exist.  If a file can be opened, mandoc
+   will produce some output; at worst, the output may be almost empty.
+ * New -Wunsupp message level.
+    --- POTENTIONALLY SECURITY RELEVANT BUGFIXES ---
+ * Fix a potential write buffer overrun on incomplete string conditionals.
+   http://mandoc.bsd.lv/cgi-bin/cvsweb/roff.c#rev1.241
+ * Fix a potential write buffer overrun on backslash at EOF in a conditional.
+   http://mandoc.bsd.lv/cgi-bin/cvsweb/roff.c#rev1.247
+ * Fix a use after free sometimes hit when validation deletes a block.
+   http://mandoc.bsd.lv/cgi-bin/cvsweb/mdoc_macro.c#rev1.180
+    --- MAJOR FUNCTIONALLY RELEVANT BUGFIXES ---
+ * Let man(1) show manuals for the current architecture by default,
+   and support the MACHINE environment variable.
+ * Fix the man(1) and apropos(1) -m option, it didn't work at all.
+ * Do not spawn a pager when there is no output.
+ * In makewhatis(8), fix detection of hardlinked manuals on platforms
+   having padding in struct inodev (typically 64bit platforms).
+    --- PORTABILITY IMPROVEMENTS ---
+ * Ignore O_CLOEXEC when the operating system doesn't provide it.
+ * Avoid forward reference to enum type which violates ISO C99.
+ * Support homebrew-style linking on Mac OS X.
+    --- MINOR NEW FEATURES ---
+ * lookup: Accept digit+letter and "n" as section names in man(1),
+   and consistently handle digit+letter in file name extensions.
+ * lookup: Speed up -s/-S by using the "mlinks" rather than the "keys" table.
+ * output: Insert horizontal lines between formatted manual pages.
+ * input: New stricter and more resilient UTF-8 parser.
+ * mdoc(7): Refactor block rewinding for simpler and more robust parsing.
+ * man(7): Use the -Ios option when .TH has less than four arguments.
+ * tbl(7): Implement the "center" option.
+ * tbl(7): New option and format parsers, improved in many respects.
+ * roff(7): Basic implementation of the \o escape sequence (overstrike),
+   and improved rendering of overstrikes in PostScript and PDF output.
+ * Message improvements, in particular for, but not restricted to,
+   eqn(7), tbl(7), and wrong numbers of arguments in mdoc(7) and man(7),
+   in various cases also improving output generated by invalid input.
+ * Delete the -V option.  It serves no purpose but keeps confusing people.
+ * gmdiff: Minimal support for Heirloom roff.
+    --- RELIABILITY BUGFIXES ---
+ * tbl(7): Fix a read buffer overrun on 'f' at EOL in a layout.
+ * roff(7): Fix a read buffer overrun on incomplete numerical conditions.
+ * mdoc(7): Fix a NULL pointer access on .Nd followed by an explicit block.
+ * mdoc(7): Fix a NULL pointer access on .It Xo without .Xc.
+ * mdoc(7): Fix a NULL pointer access on .Eo without a tail.
+ * mdoc(7): Fix a NULL pointer access in the validation of empty .St macros.
+ * man(7)/tbl(7): Fix a NULL pointer access on .TS right after .TP.
+ * tbl(7): Fix a NULL pointer access on layout lines without any cells.
+ * eqn(7): Fix NULL pointer accesses in the terminal formatter.
+ * roff(7): Fix a NULL pointer access on trailing \s-/\s+ without an argument.
+ * gz: Fix a potential NULL pointer access after waitpid() failure.
+ * roff(7): Don't let the modulo operator divide by zero.
+ * input: Fix an assertion failure on certain invalid UTF-8 input.
+ * terminal output: Allow arbitrary depth of the font stack (assertion fix).
+ * mdoc(7): Fix assertion failures and endless loops on invalid block closing.
+ * mdoc(7): Fix an assertion failure on .Bl .Sm not followed by .It.
+ * mdoc(7): Fix an assertion failure on .Bl -column ... .El .Ta.
+ * tbl(7): Fix assertion failures by macros inside table data,
+   but do not throw away the macro arguments.
+ * Prevent certain kinds of unreasonable input from producing excessive
+   output, in one case caused by unsigned integer underflow.
+ * Fix a potential memory leak in makewhatis(8) on very long filenames.
+    --- MINOR BUGFIXES ---
+ * mdoc(7): Fix parsing of badly nested blocks with multiple identical blocks.
+ * mdoc(7): Support negative indentations for displays and lists.
+ * mdoc(7): Don't mistreat negative .sp arguments as large positive ones.
+ * mdoc(7): Some spacing fixes for .Eo/.Ec.
+ * man(7): Support negative horizontal widths.
+ * man(7): Do not print out invalid .IP arguments.
+ * man(7): Correctly handle scaling units after .PD.
+ * man(7): Support .RE with an argument.
+ * man(7): Fix restoring indentation after .RS with large negative arguments.
+ * tbl(7): Prevent tables from breaking the filling of preceding text.
+ * tbl(7): Fix vertical spacing at the beginning of tables.
+ * tbl(7): Parser and formatter fixes for line drawing and font modifiers.
+ * tbl(7): Correct handling of blank data lines.
+ * eqn(7): Add sometimes missing whitespace before equation output.
+ * roff(7): Fix vertical scaling, most of it was wrong.
+ * roff(7): Slightly improve \w width measurements.
+ * roff(7): Accept the historic aliases \s10 to \s39 for \s(10 to \s(39.
+ * roff(7): Correctly escape quotes when expanding macro arguments.
+ * roff(7): Correctly handle scaling units in numerical expressions,
+   and some other improvements to the parsing of numerical expressions.
+ * roff(7): Three minor fixes with respect to evaluation of conditionals.
+ * roff(7): Let .it accept numerical expressions, not just constants.
+ * mandoc_char(7): Correct some character names and renderings.
+ * If earlier files set a non-zero exit status, never reset it to zero.
+    --- THANKS TO ---
+ * Jonathan Gray (OpenBSD) for yet more testing with afl (the American
+   Fuzzy Lop security fuzzer), again resulting in many bug reports.
+ * Theo de Raadt (OpenBSD) for suggesting the main new feature (man(1) file
+   system lookup) and for reporting an important bug (pager without output).
+ * Theo Buehler for an important bug report (-s/-S slowness)
+   and for proposing a nice new feature (lines between pages).
+ * Jason McIntyre for an important bug report (hardlink detection)
+   and multiple documentation patches.
+ * Pascal Stumpf (OpenBSD) and Alessandro de Laurenzis for
+   important bug reports (architecture and man -m, respectively).
+ * Thomas Klausner (NetBSD) for proposing a new feature (man(7) -Ios),
+   a bug report, and release testing.
+ * Anthony Bentley, Daniel Dickman, Ted Unangst (OpenBSD) and
+   Kristaps Dzonsons (bsd.lv) for source code patches and bug reports.
+ * Christian Weisgerber (OpenBSD) for more than half a dozen bug reports.
+ * Carsten Kunze (Heirloom troff) for bug reports and release testing.
+ * Antoine Jacoutot (OpenBSD) for release testing.
+ * Alexis Hildebrandt (Homebrew), Baptiste Daroussin (FreeBSD),
+   Jonathan Perkin (SmartOS), Pedro Giffuni (FreeBSD), Svyatoslav
+   Mishyn (Crux Linux), Ulrich Spoerlein (FreeBSD), Jan Stary, Patrick
+   Keshishian, Sebastien Marie, and Steffen Nurpmeso for bug reports.
+
+Changes in version 1.13.2, released on December 13, 2014
+
+    --- MAJOR NEW FEATURES ---
+ * Include an implementation of man(1), the manual page viewer.
+ * Unified set of command line option, each one supported by all
+   command names, including new options -a (format all), -c (no
+   pager), -h (synopsis only), and -w (list filenames).
+ * Support the MANPAGER and PAGER environment variables.
+ * Support gzip'ed manuals by the whole toolset, even as .so targets.
+ * Support UTF-8 and Latin-1 input by the whole toolset, delete preconv(1).
+ * Switch the default output mode from -Tascii to -Tlocale.
+ * Improve -Tascii output for Unicode escape sequences.
+ * Let the -Thtml output mode produce polyglot HTML5.
+ * Many improvements for eqn(7), in particular in-line equations,
+   MathML output in -Thtml mode, and much improved terminal formatting.
+    --- PORTABILITY IMPROVEMENTS ---
+ * Change the build sequence to the usual ./configure; make; make install.
+ * Support ./configure.local for build customizations.
+ * Autodetect wchar, sqlite3, and manpath support.
+ * Provide a fallback version of fts(3) for systems lacking it.
+ * Support choosing alternative binary and manual names.
+    --- MINOR NEW FEATURES ---
+ * Rudimentary implementation of the e, x, and z tbl(7) layout
+   modifiers to equalize, maximize, and ignore the width of columns.
+ * Implement font modifiers in tbl(7) layouts.
+ * Allow comma-separated options in the tbl(7) options line.
+ * Parse and ignore the .pl (page length) roff(7) request.
+ * Implement .An -[no]split for the mdoc(7) -Thtml output mode.
+ * Support bold italic font in PostScript and PDF output.
+ * Warn about commas in function arguments and parentheses in function names.
+ * Warn about botched .Xr ordering and punctuation below SEE ALSO.
+ * Warn about AUTHORS sections without .An macros.
+ * Warn about attempts to call non-callable macros.
+ * New developer documentation manual page mandoc_headers(3).
+    --- BUGFIXES ---
+ * Fix read buffer overrun sometimes triggered by trailing whitespace.
+ * Fix read buffer overrun triggered by certain invalid \H sequences.
+ * Fix NULL pointer access triggered by .Bl without any arguments.
+ * Fix NULL pointer access triggered by .It Nm Fo without .Fc.
+ * Fix NULL pointer access triggered by .Sh Xo .Sh without .Xc.
+ * Fix NULL pointer access triggered by missing .Nm.
+ * Fix an assertion triggered by .It right after .El.
+ * Fix an assertion triggered by .Ec without preceding .Eo.
+ * Fix an assertion triggered by .Sm or .Db with multiple arguments.
+ * Fix assertion failures triggered by very large width arguments.
+ * Fix a division by zero in the roff(7) parser.
+ * Prevent negative arguments to .ll from causing integer underflow.
+ * Correctly autodetect source format even when .Dd is preceded by .ll.
+ * Multiple fixes with respect to .Bd and .Bl -offset and -width.
+ * Many bugfixes with respect to scaling units.
+ * Multiple fixes with respect to delimiter handling by in-line macros.
+ * Multiple fixes with respect to .Pf.
+ * Make \c work properly in no-fill mode.
+ * Stricter syntax checking of Unicode character names.
+    --- THANKS TO ---
+ * Kristaps Dzonsons for rewriting the eqn(7) parser, implementing
+   HTML5 and MathML output, and various other code contributions.
+ * Jonathan Gray (OpenBSD) for extensive testing with afl (the
+   American Fuzzy Lop security fuzzer) resulting in many bug reports.
+ * Anthony Bentley (OpenBSD), Baptiste Daroussin (FreeBSD), Daniel
+   Dickman, Doug Hogan, Jason McIntyre, Theo de Raadt (OpenBSD),
+   and Martin Natano for source code patches.
+ * Carsten Kunze (Heirloom troff), Daniel Levai (Slackware),
+   Garrett D'Amore (illumos), Giovanni Becchis, Matthew Dempsky,
+   Stuart Henderson, Ted Unangst, Todd Miller (OpenBSD), Thomas
+   Klausner (NetBSD), Ulrich Spoerlein (FreeBSD), Justin Haynes,
+   Marcus Merighi, Sebastien Marie, Steffen Nurpmeso and Theo Buehler
+   for bug reports.
+
+Changes in version 1.13.1, released on August 10, 2014
+
+    --- MAJOR NEW FEATURES ---
+ * A complete apropos(1)/makewhatis(8)/man.cgi(8) suite
+   based on SQLite3 is now included.
+ * The roff(7) parser now provides an almost complete implementation
+   of numerical expressions.
+ * Warning and error messages have been improved in many ways.
+   Almost all fatal errors were downgraded to normal errors and some
+   even to warnings.  Almost all messages now mention the macro where
+   the issue is detected and many indicate the workaround employed.
+   The mandoc(1) manual now includes a list explaining all messages.
+    --- MINOR NEW FEATURES ---
+ * The roff(7) parser now supports the .ami (append to macro with
+   indirectly specified name), .as (append to user-defined
+   string), .dei (define macro with indirectly specified name),
+   .ll (line length), and .rr (remove register) requests.
+ * The roff(7) parser now supports string comparison and numerical
+   conditionals in the .if and .ie requests.
+ * The roff parser now fully supports the \B (validate numerical
+   expression) and partially supports the \w (measure text width)
+   escape sequences.
+ * The terminal formatter now supports the \: (optional line break)
+   escape sequence.
+ * The roff parser now supports expansion of user-defined strings
+   involving indirect references.
+ * The roff(7) parser now handles some pre-defined read-only
+   number registers that occur in the pod2man(1) preamble.
+ * For backward compatibility, the mdoc(7) parser and formatters
+   now support the obsolete macros .En, .Es, .Fr, and .Ot.
+ * The mdoc(7) formatter non partially supports .Bd -centered.
+ * tbl(7) now handles leading and trailing vertical lines.
+ * The build system now provides fallback versions of strcasestr(3)
+   and strsep(3) for systems lacking them.
+ * The mdoc(7) manual now explains how various standards
+   supported by the .St macro are related to each other.
+    --- BUGFIXES ---
+ * In the roff(7) parser, several bugs were fixed with respect
+   to closing conditional blocks on macro lines.
+ * Parsing of roff(7) identifiers and escape sequences was improved
+   in multiple respects.
+ * In the mdoc(7) parser, the handling of defective document
+   prologues was improved in multiple ways.
+ * The mdoc(7) parser no longer skips content before the first section
+   header, and it no longer deletes non-.% content from .Rs blocks.
+ * In the mdoc(7) parser, a crash was fixed related to weird .Sh headers.
+ * In the mdoc(7) parser, handling of .Sm with missing or invalid
+   arguments was corrected.
+ * In the mdoc(7) parser, trailing punctuation at the end of partial
+   implicit macros no longer triggers end-of-sentence spacing.
+ * In the terminal formatter, two crashes were fixed: one triggered by
+   excessive indentation and another by excessively long .Nm arguments.
+ * In the terminal formatter, a floating point rounding bug was
+   fixed that sometimes caused an off-by-one error in indentation.
+ * In the UTF-8 formatter, rendering of accents, breakable hyphens,
+   and non-breakable spaces was corrected.
+ * In the HTML formatter, encoding of special characters was
+   corrected in multiple respects.
+ * In the mdoc(7) formatter, rendering of .Ex and .Rv was
+   improved for various edge cases.
+ * In the mdoc(7) formatter, handling of empty .Bl -inset item
+   heads was improved.
+ * In the man(7) formatter, some bugs were fixed with respect
+   to same-line detection in the context of .TP and .nf macros,
+   and the indentation of .IP and .TP blocks was improved.
+ * The mandoc(3) library no longer prints to stderr.
+    --- THANKS TO ---
+   Abhinav Upadhyay (NetBSD), Andreas Voegele, Anthony Bentley (OpenBSD),
+   Christian Weisgerber (OpenBSD), Havard Eidnes (NetBSD), Jan Stary,
+   Jason McIntyre (OpenBSD), Jeremie Courreges-Anglas (OpenBSD),
+   Joerg Sonnenberger (NetBSD), Juan Francisco Cantero Hurtado (OpenBSD),
+   Marc Espie (OpenBSD), Matthias Scheler (NetBSD), Pascal Stumpf (OpenBSD),
+   Paul Onyschuk (Alpine Linux), Sebastien Marie, Steffen Nurpmeso,
+   Stuart Henderson (OpenBSD), Ted Unangst (OpenBSD), Theo de Raadt (OpenBSD),
+   Thomas Klausner (NetBSD), and Ulrich Spoerlein (FreeBSD)
+   for reporting bugs and missing features.
+
+Changes in version 1.12.3, released on December 31, 2013
+
+ * In the mdoc(7) SYNOPSIS, line breaks and hanging indentation
+   now work correctly for .Fo/.Fa/.Fc and .Fn blocks.
+   Thanks to Franco Fichtner for doing part of the work.
+ * The mdoc(7) .Bk macro got some addititonal bugfixes.
+ * In mdoc(7) macro arguments, double quotes can now be quoted
+   by doubling them, just like in man(7).
+   Thanks to Tsugutomo ENAMI for the patch.
+ * At the end of man(7) macro lines, end-of-sentence spacing
+   now works.  Thanks to Franco Fichtner for the patch.
+ * For backward compatibility, the man(7) parser now supports the
+   man-ext .UR/.UE (uniform resource identifier) block macros.
+ * The man(7) parser now handles closing blocks that are not open
+   more gracefully.
+ * The man(7) parser now ignores blank lines right after .SH and .SS.
+ * In the man(7) formatter, reset indentation when leaving a block,
+   not just when entering the next one.
+ * The roff(7) .nr request now supports incrementing and decrementing
+   number registers and stops parsing the number right before the
+   first non-digit character.
+ * The roff(7) parser now supports the alternative escape sequence
+   syntax \C'uXXXX' for Unicode characters.
+ * The roff(7) parser now parses and ignores the .fam (font family)
+   and .hw (hyphenation points) requests and the \d and \u escape
+   sequences.
+ * The roff(7) manual got a new ESCAPE SEQUENCE REFERENCE.
+
+Changes in version 1.12.2, released on Oktober 5, 2013
+
+ * The mdoc(7) to man(7) converter, to be called as mandoc -Tman,
+   is now fully functional.
+ * The mandoc(1) utility now supports the -Ios (default operating system)
+   input option, and the -Tutf8 output mode now actually works.
+ * The mandocdb(8) utility no longer truncates existing databases when
+   starting to build new ones, but only replaces them when the build
+   actually succeeds.
+ * The man(7) parser now supports the PD macro (paragraph distance),
+   and (for GNU man-ext compatibility only) EX (example block) and EE
+   (example end).  Plus several bugfixes regarding indentation, line
+   breaks, and vertical spacing, and regarding RS following TP.
+ * The roff(7) parser now supports the \f(BI (bold+italic) font escape,
+   the \z (zero cursor advance) escape and the cc (change control
+   character) and it (input line trap) requests. Plus bugfixes regarding
+   the \t (tab) escape, nested escape sequences, and conditional requests.
+ * In mdoc(7), several bugs were fixed related to UTF-8 output of quoting
+   enclosures, delimiter handling, list indentation and horizontal and
+   vertical spacing, formatting of the Lk, %U, and %C macros, plus some
+   bugfixes related to the handling of syntax errors like badly nested
+   font blocks, stray Ta macros outside column lists, unterminated It Xo
+   blocks, and non-text children of Nm blocks.
+ * In tbl(7), the width of horizontal spans and the vertical spacing
+   around tables was corrected, and in man(7) files, a crash was fixed
+   that was triggered by some particular unclosed T{ macros.
+ * For mandoc developers, we now provide a tbl(3) library manual and
+   gmdiff, a very small, very simplistic groff-versus-mandoc output
+   comparison tool.
+ * Provide this NEWS file.
+
+Changes in version 1.12.1, released on March 23, 2012
+
+ * Significant work on apropos(1) and mandocdb(8). These tools are now
+   much more robust.  A whatis(1) implementation is now handled as an
+   apropos(1) mode.  These tools are also able to minimally handle
+   pre-formatted pages, that is, those already formatted by another
+   utility such as GNU troff.
+ * The man.cgi(7) script is also now available for wider testing.
+   It interfaces with mandocdb(8) manuals cached by catman(8).
+   HTML output is generated on-the-fly by libmandoc or internal
+   methods to convert pre-formatted pages.
+ * The mailing list archive for the discuss and tech lists are being
+   hosted by Gmane at gmane.comp.tools.mdocml.user and
+   gmane.comp.tools.mdocml.devel, respectively.
+
+Changes in version 1.12.0, released on October 8, 2011
+
+ * This version features a new, work-in-progress mandoc(1) output mode:
+   -Tman.  This mode allows a system maintainer to distribute man(7)
+   media for older systems that may not natively support mdoc(7), such
+   as old Solaris systems.
+ * The -Ofragment option was added to mandoc(1)'s -Thtml and -Txhtml modes.
+ * While adding features, an apropos(1) utility has been merged from the
+   mandoc-tools sandbox.  This interfaces with mandocdb(8) for semantic
+   search of manual content.  apropos(1) is different from the traditional
+   apropos primarily in allowing keyword search (such as for functions,
+   utilities, etc.) and regular expressions.  Note that the calling
+   syntax for apropos is likely to change as it settles down.
+ * In documentation news, the mdoc(7) and man(7) manuals have been
+   made considerably more readable by adding MACRO OVERVIEW sections, by
+   moving the gory details of the LANGUAGE SYNTAX to the roff(7) manual,
+   and by moving the very technical MACRO SYNTAX sections down to the
+   bottom of the page.
+ * Furthermore, for tbl(7), the -Tascii mode horizontal spacing of tables
+   was rewritten completely.  It is now compatible with groff(1), both
+   with and without frames and rulers.
+ * Nesting of indented blocks is now supported in man(7), and several
+   bugs were fixed regarding indentation and alignment.
+ * The page headers in mdoc(7) are now nicer for very long titles.
+
+Changes in version 1.11.7, released on September 2, 2011
+
+ * Added demandoc(1) utility for stripping away macros and escapes.
+   This replaces the historical deroff(1) utility.
+ * Also improved the mdoc(7) and man(7) manuals.
+
+Changes in version 1.11.6, released on August 16, 2011
+
+ * Handling of tr macro in roff(7) implemented.  This makes Perl
+   documentation much more readable.  Hyphenation is also now enabled in
+   man(7) format documents.  Many other general improvements have been
+   implemented.
+
+Changes in version 1.11.5, released on July 24, 2011
+
+ * Significant eqn(7) improvements.  mdocml can now parse arbitrary eqn
+   input (although few GNU extensions are accepted, nor is mixing
+   low-level roff with eqn).  See the eqn(7) manual for details.
+   For the time being, equations are rendered as simple in-line text.
+   The equation parser satisfies the language specified in the
+   Second Edition User's Guide:
+   http://www.kohala.com/start/troff/v7man/eqn/eqn2e.ps
+
+Changes in version 1.11.4, released on July 12, 2011
+
+ * Bug-fixes and clean-ups across all systems, especially in mandocdb(8)
+   and the man(7) parser.  This release was significantly assisted by
+   participants in OpenBSD's c2k11.  Thanks!
+
+Changes in version 1.11.3, released on May 26, 2011
+
+ * Introduce locale-encoding of output with the -Tlocale output option and
+   Unicode escaped-character input.  See mandoc(1) and mandoc_char(7),
+   respectively, for details.  This allows for non-ASCII characters (e.g.,
+   \[u5000]) to be rendered in the locale's encoding, if said environment
+   supports wide-character encoding (if it does not, -Tascii is used
+   instead).  Locale support can be turned off at compile time by removing
+   -DUSE_WCHAR in the Makefile, in which case -Tlocale is always a synonym
+   for -Tascii.
+ * Furthermore, multibyte-encoded documents, such as those in UTF-8, may
+   be on-the-fly recoded into mandoc(1) input by using the newly-added
+   preconv(1) utility.  Note: in the future, this feature may be
+   integrated into mandoc(1).
+
+Changes in version 1.11.2, released on May 12, 2011
+
+ * Corrected some installation issues in version 1.11.1.
+ * Further migration to libmandoc.
+ * Initial public release (this utility is very much under development)
+   of mandocdb(8).  This utility produces keyword databases of manual
+   content, which features semantic querying of manual content.
+
+Changes in version 1.11.1, released on April 4, 2011
+
+ * The earlier libroff, libmdoc, and libman soup have been merged into
+   a single library, libmandoc, which manages all aspects of parsing
+   real manuals, from line-handling to tbl(7) parsing.
+ * As usual, many general fixes and improvements have also occurred.
+   In particular, a great deal of redundancy and superfluous code has
+   been removed with the merging of the backend libraries.
+ * see also the changes in 1.10.10
+
+Changes in version 1.10.10, March 20, 2011, NOT released
+
+ * Initial eqn(7) functionality is in place.  For the time being,
+   this is limited to the recognition of equation blocks;
+   future version of mdocml will expand upon this framework.
+
+Changes in version 1.10.9, released on January 7, 2011
+
+ * Many back-end fixes have been implemented: argument handling (quoting),
+   man(7) improvements, error/warning classes, and many more.
+ * Initial tbl(7) functionality (see the "TS", "TE", and "T&" macros in
+   the roff(7) manual) has been merged from tbl.bsd.lv.  Output is still
+   minimal, especially for -Thtml and -Txhtml, but manages to at least
+   display data.  This means that mandoc(1) now has built-in support
+   for two troff preprocessors via libroff: soelim(1) and tbl(1).
+
+Changes in version 1.10.8, released on December 24, 2010
+
+ * Overhauled the -Thtml and -Txhtml output modes.  They now display
+   readable output in arbitrary browsers, including text-based ones like
+   lynx(1).  See HTML and XHTML manuals in the DOCUMENTATION section
+   for examples.  Attention: available style-sheet classes have been
+   considerably changed!  See the example.style.css file for details.
+   Lastly, libmdoc and libman have been cleaned up and reduced in size
+   and complexity.
+ * see also the changes in 1.10.7
+
+Changes in version 1.10.7, December 6, 2010, NOT released
+
+ Significant improvements merged from OpenBSD downstream, including:
+ * many new roff(7) components,
+ * in-line implementation of troff's soelim(1),
+ * broken-block handling,
+ * overhauled error classifications, and
+ * cleaned up handling of error conditions.
+
+Changes in version 1.10.6, released on September 27, 2010
+
+ * Calling conventions for mandoc(1) have changed: -W improved and -f
+   deprecated.
+ * Non-ASCII characters are also now uniformly discarded.
+ * Lots of documentation improvements.
+ * Many incremental fixes accomodating for groff's more interesting
+   productions.
+ * Lastly, pod2man(1) preambles are now fully accepted after some
+   considerable roff(7) and special character support.
+
+Changes in version 1.10.5, released on July 27, 2010
+
+ * Primarily a bug-fix and polish release, but including -Tpdf support
+   in mandoc(1) by way of "Summer of Code".  Highlights:
+ * fix "Sm" and "Bd" handling
+ * fix end-of-sentence handling for embedded sentences
+ * polish man(7) documentation
+ * document all mdoc(7) macros
+ * polish mandoc(1) -Tps output
+ * lots of internal clean-ups in character escapes
+ * un-break literal contexts in man(7) documents
+ * improve -Thtml output for -man
+ * add mandoc(1) -Tpdf support
+
+Changes in version 1.10.4, released on July 12, 2010
+
+ * Lots of features developed during both "Summer of Code" and the
+   OpenBSD c2k10 hackathon:
+ * minimal "ds" roff(7) symbols are supported
+ * beautified SYNOPSIS section output
+ * acceptance of scope-block breakage in mdoc(7)
+ * clarify error message status
+ * many minor bug-fixes and formatting issues resolved
+ * see also changes in 1.10.3
+
+Changes in version 1.10.3, June 29, 2010, NOT released
+
+ * variable font-width and paper-size support in mandoc(1) -Tps output
+ * "Bk" mdoc(7) support
+
+Changes in version 1.10.2, released on June 19, 2010
+
+ * Small release featuring text-decoration in -Tps output,
+   a few minor relaxations of errors, and some optimisations.
+
+Changes in version 1.10.1, released on June 7, 2010
+
+ * This primarily focusses on the "Bl" and "It" macros described in
+   mdoc(7).  Multi-line column support is now fully compatible with groff,
+   as are implicit list entries for columns.
+ * Removed manuals(7) in favour of http://manpages.bsd.lv.
+ * The way we handle the SYNOPSIS section (see the SYNOPSIS documentation
+   in MANUAL STRUCTURE) has also been considerably simplified compared
+   to groff's method.
+ * Furthermore, the -Owidth=width output option has been added to -Tascii,
+   see mandoc(1).
+ * Lastly, initial PostScript output has been added with the -Tps option
+   to mandoc(1).  It's brutally simple at the moment: fixed-font, with no
+   font decorations.
+
+Changes in version 1.10.0, released on May 29, 2010
+
+ * Release consisting of the results from the m2k10 hackathon and up-merge
+   from OpenBSD.  This requires a significant note of thanks to Ingo
+   Schwarze (OpenBSD) and Joerg Sonnenberger (NetBSD) for their hard work,
+   and again to Joerg for hosting m2k10.  Highlights (mostly cribbed from
+   Ingo's m2k10 report) follow in no particular order:
+ * a libroff preprocessor in front of libmdoc and libman stripping out
+   roff(7) instructions;
+ * end-of-sentence (EOS) detection in free-form and macro lines;
+ * correct handling of tab-separated columnar lists in mdoc(7);
+ * improved main calling routines to optionally use mmap(3) for better
+   performance;
+ * cleaned up exiting when invoked as -Tlint or over multiple files
+   with -fign-errors;
+ * error and warning message handling re-written to be unified for
+   libroff, libmdoc, and libman;
+ * handling of badly-nested explicit-scoped macros;
+ * improved free-form text parsing in libman and libmdoc;
+ * significant GNU troff compatibility improvements in -Tascii,
+   largely in terms of spacing;
+ * a regression framework for making sure the many fragilities of GNU
+   troff aren't trampled in subsequent work;
+ * support for -Tascii breaking at hyphens encountered in free-form text;
+ * and many more minor fixes and improvements
+
+Changes in version 1.9.25, released on May 13, 2010
+
+ * Fixed handling of "\*(Ba" escape.
+ * Backed out -fno-ign-chars (pointless complexity).
+ * Fixed erroneous breaking of literal lines.
+ * Fixed SYNOPSIS breaking lines before non-initial macros.
+ * Changed default section ordering.
+ * Most importantly, the framework for end-of-sentence double-spacing is
+   in place, now implemented for the "end-of-sentence, end-of-line" rule.
+ * This is a stable roll-back point before the mandoc hackathon in Rostock!
+
+Changes in version 1.9.24, released on May 9, 2010
+
+ * Rolled back break-at-hyphen.
+ * -DUGLY is now the default (no feature splits!).
+ * Free-form text is not de-chunked any more: lines are passed
+   whole-sale into the front-end, including whitespace.
+ * Added mailing lists.
+
+Changes in version 1.9.23, released on April 7, 2010
+
+ * mdocml has been linked to the OpenBSD build.
+ * This version incorporates many small changes, mostly from patches
+   by OpenBSD, allowing crufty manuals to slip by with warnings instead
+   of erroring-out.
+ * Some subtle semantic issues, such as punctuation scope, have also
+   been fixed.
+ * Lastly, some issues with -Thtml have been fixed, which prompted an
+   update to the online manual pages style layout.
+
+Changes in version 1.9.22, released on March 31, 2010
+
+ * Adjusted merge of the significant work by Ingo Schwarze
+   in getting "Xo" blocks (block full implicit, e.g., "It"
+   for non-columnar lists) to work properly.  This isn't
+   enabled by default: you must specify -DUGLY as a compiler
+   flag (see the Makefile for details).
+
+Changes in version 1.9.20, released on March 30, 2010
+
+ * More efforts to get roff instructions in man(7) documents under
+   control.  Note that roff instructions embedded in line-scoped,
+   next-line macros (e.g. "B") are not supported.
+ * Leading punctuation for mdoc(7) macros, such as "Fl ( ( a",
+   are now correctly handled.
+
+Changes in version 1.9.18, released on March 27, 2010
+
+ * Many fixes (largely pertaining to scope)
+   and improvements (e.g., handling of apostrophe-control macros,
+   which fixes the strange "BR" seen in some macro output)
+   to handling roff instructions in man(7) documents.
+
+Changes in version 1.9.17, released on March 25, 2010
+
+ * Accept perlpod(1) standard preamble.
+ * Also accept (and discard) "de", "dei", "am", "ami", and "ig"
+   roff macro blocks.
+
+Changes in version 1.9.16, released on March 22, 2010
+
+ * Inspired by patches and bug reports by Ingo Schwarze,
+   allowed man(7) to accept non-printing elements to be nested
+   within next-line scopes, such as "br" within "B" or "TH",
+   which is valid roff.
+ * Longsoon architecture also noted and Makefile cleaned up.
+
+Changes in version 1.9.15, released on February 18, 2010
+
+ * Moved to our new BSD.lv home.
+ * XHTML is now an acceptable output mode for mandoc(1);
+ * "Xr" made more compatible with groff;
+ * "Vt" fixed when invoked in SYNOPSIS;
+ * "\\" escape removed;
+ * end-of-line white-space detected for all lines;
+ * subtle bug fixed in list display for some modes;
+ * compatibility layer checked in for compilation in diverse
+   UNIX systems;
+ * and column lengths handled correctly.
+
+For older releases, see the ChangeLog files
+in http://mandoc.bsd.lv/snapshots/ .

Added: vendor/mandoc/dist/TODO
===================================================================
--- vendor/mandoc/dist/TODO	                        (rev 0)
+++ vendor/mandoc/dist/TODO	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,582 @@
+************************************************************************
+* Official mandoc TODO.
+* $Id: TODO,v 1.246 2017/07/24 11:15:12 schwarze Exp $
+************************************************************************
+
+Many issues are annotated for difficulty as follows:
+
+ - loc = locality of the issue
+    *    single file issue, affects file only, or very few
+    **   single module issue, affects several files of one module
+    ***  cross-module issue, significantly impacts multiple modules
+         and may require substantial changes to internal interfaces
+ - exist = difficulty of the existing code in this area
+    *    affected code is straightforward and easy to read and change
+    **   affected code is somewhat complex, but once you understand
+         the design, not particularly difficult to understand
+    ***  affected code uses a special, exceptionally tricky design
+ - algo = difficulty of the new algorithm to be written
+    *    the required logic and code is straightforward
+    **   the required logic is somewhat complex and needs a careful design
+    ***  the required logic is exceptionally tricky,
+         maybe an approach to solve that is not even known yet
+ - size = the amount of code to be written or changed
+    *    a small number of lines (at most 100, usually much less)
+    **   a considerable amount of code (several dozen to a few hundred)
+    ***  a large amount of code (many hundreds, maybe thousands)
+ - imp = importance of the issue
+    *    mostly for completeness
+    **   would be nice to have
+    ***  issue causes considerable inconvenience
+
+Obviously, as the issues have not been solved yet, these annotations
+are mere guesses, and some may be wrong.
+
+************************************************************************
+* missing features
+************************************************************************
+
+--- missing roff features ----------------------------------------------
+
+- .ad (adjust margins)
+  .ad l -- adjust left margin only (flush left)
+  .ad r -- adjust right margin only (flush right)
+  .ad c -- center text on line
+  .ad b -- adjust both margins (alias: .ad n)
+  .na   -- temporarily disable adjustment without changing the mode
+  .ad   -- re-enable adjustment without changing the mode
+  Adjustment mode is ignored while in no-fill mode (.nf).
+  loc ***  exist ***  algo **  size **  imp **  (parser reorg would help)
+
+- .fc (field control)
+  found by naddy@ in xloadimage(1)
+  loc **  exist ***  algo *  size *  imp *
+
+- .nr third argument (auto-increment step size, requires \n+)
+  found by bentley@ in sbcl(1)  Mon, 9 Dec 2013 18:36:57 -0700
+  loc *  exist *  algo *  size *  imp **
+
+- .ns (no-space mode) occurs in xine-config(1)
+  when implementing this, also let .TH set it
+  reported by brad@  Sat, 15 Jan 2011 15:45:23 -0500
+  loc ***  exist ***  algo ***  size **  imp *
+
+- .while and .shift
+  found by jca@ in ratpoison(1)  Sun, 30 Jun 2013 12:01:09 +0200
+  loc *  exist **  algo **  size **  imp **
+
+- \n+ and \n- numerical register increment and decrement
+  found by bentley@ in sbcl(1)  Mon, 9 Dec 2013 18:36:57 -0700
+  loc *  exist *  algo *  size *  imp **
+
+- \w'' improve width measurements
+  would not be very useful without an expression parser, see below
+  needed for Tcl_NewStringObj(3) via wiz@  Wed, 5 Mar 2014 22:27:43 +0100
+  loc **  exist ***  algo ***  size *  imp ***
+
+- \\ in high-level macro arguments
+  Currently, \\ is expanded in two situations:
+  1) macro and string definition (roff.c setstrn())
+  2) macro argument parsing (mandoc.c mandoc_getarg())
+  For user defined macros, the second happens in time because of ROFF_REPARSE.
+  But for standard high-level macros, it only happens after entering the
+  high level parsers, which is too late because the code doesn't get
+  back to roff.c roff_res() from that point.  Because this requires
+  distinguishing requests, user-defined macros and standard macros
+  on the roff_res() level, it is hard to solve without the parser reorg.
+  Found by naddy@ in devel/cutils cobfusc(1)  Mon, 16 Feb 2015 19:10:52 +0100
+  loc ***  exist ***  algo ***  size **  imp *
+
+- using undefined strings or macros defines them to be empty
+  wl@  Mon, 14 Nov 2011 14:37:01 +0000
+  loc *  exist *  algo *  size *  imp *
+
+--- missing mdoc features ----------------------------------------------
+
+- .Bl -column .Xo support is missing
+  ultimate goal:
+  restore .Xr and .Dv to
+  lib/libc/compat-43/sigvec.3
+  lib/libc/gen/signal.3
+  lib/libc/sys/sigaction.2
+  loc *  exist ***  algo ***  size *  imp **
+
+- edge case: decide how to deal with blk_full bad nesting, e.g.
+  .Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)
+  from jmc@  Wed, 14 Jul 2010 18:10:32 +0100
+  loc *  exist ***  algo ***  size **  imp **
+
+- .Bd -centered implies -filled, not -unfilled, which is not
+  easy to implement; it requires code similar to .ce, which
+  we don't have either.
+  Besides, groff has bug causing text right *before* .Bd -centered
+  to be centered as well.
+  loc ***  exist ***  algo **  size **  imp **  (parser reorg would help)
+
+- .Bd -filled should not be the same as .Bd -ragged, but align both
+  the left and right margin.  In groff, it is implemented in terms
+  of .ad b, which we don't have either.  Found in cksum(1).
+  loc ***  exist ***  algo **  size **  imp **  (parser reorg would help)
+
+- implement blank `Bl -column', such as
+  .Bl -column
+  .It foo Ta bar
+  .El
+  loc *  exist ***  algo ***  size *  imp *
+
+- explicitly disallow nested `Bl -column', which would clobber internal
+  flags defined for struct mdoc_macro
+  loc *  exist *  algo *  size *  imp **
+
+- In .Bl -column .It, the end of the line probably has to be regarded
+  as an implicit .Ta, if there could be one, see the following mildly
+  ugly code from login.conf(5):
+    .Bl -column minpasswordlen program xetcxmotd
+    .It path Ta path Ta value of Dv _PATH_DEFPATH
+    .br
+    Default search path.
+  reported by Michal Mazurek <akfaew at jasminek dot net>
+  via jmc@ Thu, 7 Apr 2011 16:00:53 +0059
+  loc *  exist ***  algo **  size *  imp **
+
+- inside `.Bl -column' phrases, punctuation is handled like normal
+  text, e.g. `.Bl -column .It Fl x . Ta ...' should give "-x -."
+
+- inside `.Bl -column' phrases, TERMP_IGNDELIM handling by `Pf'
+  is not safe, e.g. `.Bl -column .It Pf a b .' gives "ab."
+  but should give "ab ."
+
+- check whether it is correct that `D1' uses INDENT+1;
+  does it need its own constant?
+  loc *  exist **  algo **  size *  imp **
+
+- prohibit `Nm' from having non-text HEAD children
+  (e.g., NetBSD mDNSShared/dns-sd.1)
+  (mdoc_html.c and mdoc_term.c `Nm' handlers can be slightly simplified)
+
+- support translated section names
+  e.g. x11/scrotwm scrotwm_es.1:21:2: error: NAME section must be first
+  that one uses NOMBRE because it is spanish...
+  deraadt tends to think that section-dependent macro behaviour
+  is a bad idea in the first place, so this may be irrelevant
+  loc **  exist **  algo **  size *  imp **
+
+- When there is free text in the SYNOPSIS and that free text contains
+  the .Nm macro, groff somehow understands to treat the .Nm as an in-line
+  macro, while mandoc treats it as a block macro and breaks the line.
+  No idea how the logic for distinguishing in-line and block instances
+  should be, needs investigation.
+  uqs@  Thu, 2 Jun 2011 11:03:51 +0200
+  uqs@  Thu, 2 Jun 2011 11:33:35 +0200
+  loc *  exist **  algo ***  size *  imp **
+
+--- missing tbl features -----------------------------------------------
+
+- the "s" layout column specifier is used for placement of data
+  into columns, but ignored during column width calculations
+  synaptics(4) found by tedu@  Mon, 17 Aug 2015 21:17:42 -0400
+  loc *  exist **  algo ***  size *  imp **
+
+- support mdoc(7) and man(7) macros inside tbl(7) code;
+  probably requires the parser reorg and letting tbl(7)
+  use roff_node such that macro sets can mix;
+  informed by bapt@ that FreeBSD needs this: 3 Jan 2015 23:32:23 +0100
+  loc ***  exist **  algo ***  size **  imp ***
+
+- look at the POSIX manuals in the books/man-pages-posix port,
+  they use some unsupported tbl(7) features.
+  loc *  exist **  algo **  size **  imp ***
+
+- look what Joerg Schilling manual pages use
+  Thu, 19 Mar 2015 18:31:48 +0100
+
+- use Unicode U+2500 to U+256C for table borders
+  in tbl(7) -Tutf-8 output
+  suggested by bentley@  Tue, 14 Oct 2014 04:10:55 -0600
+  loc *  exist **  algo *  size *  imp **
+
+--- missing eqn features -----------------------------------------------
+
+- In a matrix, break the output line after each matrix line.
+  Found in the discussion at CDBUG 2015.
+  Suggested by Avi Weinstock.
+  loc *  exist *  algo *  size *  imp **
+
+- The "size" keyword is parsed, but ignored by the formatter.
+  loc *  exist *  algo *  size *  imp *
+
+- The spacing characters `~', `^', and tab are currently ignored,
+  see User's Guide (Second Edition) page 2 section 4.
+  loc *  exist *  algo **  size *  imp **
+
+- Mark and lineup are parsed and ignored,
+  see User's Guide (Second Edition) page 5 section 15.
+  loc **  exist **  algo **  size **  imp **
+
+- GNU eqn converts some operators to special characters, for example,
+  input HYPHEN-MINUS becomes output \(mi, unless it is part of a
+  quoted word.  mandoc(1) only does this when the operator is
+  surrounded by blanks, not when it is part of an unquoted word.
+  Also, check whether there are more such cases (e.g., +?).
+  reported by bentley@  20 Jun 2017 02:04:29 -0600
+
+- Primes, opprime, and '
+  bentley@  Thu, 13 Jul 2017 23:14:20 -0600
+
+--- missing misc features ----------------------------------------------
+
+- italic correction (\/) in PostScript mode
+  Werner LEMBERG on groff at gnu dot org  Sun, 10 Nov 2013 12:47:46
+  loc **  exist **  algo *  size *  imp *
+
+- change the default PAGER to more -Es and use the pager
+  even for apropos title line output; req by bapt@
+  loc *  exist *  algo *  size *  imp ***
+
+- clean up escape sequence handling, creating three classes:
+  (1) fully implemented, or parsed and ignored without loss of content
+  (2) unimplemented, potentially causing loss of content
+      or serious mangling of formatting (e.g. \n) -> ERROR
+      see textproc/mgdiff(1) for nice examples
+  (3) undefined, just output the character -> perhaps WARNING
+  loc ***  exist **  algo **  size **  imp *** (parser reorg helps)
+
+- kettenis wants base roff, ms, and me  Fri, 1 Jan 2010 22:13:15 +0100 (CET)
+  loc **  exist **  algo **  size ***  imp *
+
+--- compatibility checks -----------------------------------------------
+
+- is .Bk implemented correctly in modern groff?
+  sobrado@  Tue, 19 Apr 2011 22:12:55 +0200
+
+- compare output to Heirloom roff, Solaris roff, and
+  http://repo.or.cz/w/neatroff.git  http://litcave.rudi.ir/
+
+- look at AT&T DWB http://www2.research.att.com/sw/download
+  Carsten Kunze <carsten dot kunze at arcor dot de> has patches
+  Mon, 4 Aug 2014 17:01:28 +0200
+  ported version: https://github.com/n-t-roff/DWB3.3
+  Carsten Kunze  Wed, 22 Apr 2015 11:21:43 +0200
+
+- look at pages generated from reStructeredText, e.g. devel/mercurial hg(1)
+  These are a weird mixture of man(7) and custom autogenerated low-level
+  roff stuff.  Figure out to what extent we can cope.
+  For details, see http://docutils.sourceforge.net/rst.html
+  noted by stsp@  Sat, 24 Apr 2010 09:17:55 +0200
+  reminded by nicm@  Mon, 3 May 2010 09:52:41 +0100
+
+- look at pages generated from ronn(1) github.com/rtomayko/ronn
+  (based on markdown)
+
+- look at pages generated from Texinfo source by yat2m, e.g. security/gnupg
+  First impression is not that bad.
+
+- look at pages generated by pandoc; see
+  https://github.com/jgm/pandoc/blob/master/src/Text/Pandoc/Writers/Man.hs
+  porting planned by kili@  Thu, 19 Jun 2014 19:46:28 +0200
+
+- check compatibility with Plan9:
+  http://swtch.com/usr/local/plan9/tmac/tmac.an
+  http://swtch.com/plan9port/man/man7/man.html
+  "Anthony J. Bentley" <anthonyjbentley at gmail.com> 28 Dec 2010 21:58:40 -0700
+
+- check compatibility with COHERENT troff:
+  http://www.nesssoftware.com/home/mwc/source.php
+
+- check compatibility with the man(7) formatter
+  https://raw.githubusercontent.com/rofl0r/hardcore-utils/master/man.c
+
+- check compatibility with
+  http://ikiwiki.info/plugins/contrib/mandoc/
+  https://github.com/schmonz/ikiwiki/compare/mandoc
+  Amitai Schlair  Mon, 19 May 2014 14:05:53 -0400
+
+- check features of the Slackware man.conf(5) format
+  Carsten Kunze  Wed, 11 Mar 2015 17:57:24 +0100
+
+************************************************************************
+* formatting issues: ugly output
+************************************************************************
+
+- revisit empty in-line macros
+  look at the difference between "Em x Em ." and "Sq x Em ."
+  Carsten Kunze  Fri, 12 Dec 2014 00:15:41 +0100
+  loc *** exist *** algo *** size * imp **
+
+- a column list with blank `Ta' cells triggers a spurious
+  start-with-whitespace printing of a newline
+
+- In .Bl -column, .It a<tab>"b<tab>c"
+  shows the quotes in groff, but not in mandoc
+  loc * exist *** algo ** size * imp **
+
+- In .Bl -column,
+  .It Em Authentication<tab>Key Length
+  ought to render "Key Length" with emphasis, too,
+  see OpenBSD iked.conf(5).
+  reported again Nicolas Joly via wiz@ Wed, 12 Oct 2011 00:20:00 +0200
+  loc *  exist ***  algo ***  size **  imp ***
+
+- empty phrases in .Bl column produce too few blanks
+  try e.g. .Bl -column It Ta Ta
+  reported by millert Fri, 02 Apr 2010 16:13:46 -0400
+  loc *  exist ***  algo ***  size *  imp **
+
+- .%T can have trailing punctuation.  Currently, it puts the trailing
+  punctuation into a trailing MDOC_TEXT element inside its own scope.
+  That element should rather be outside its scope, such that the
+  punctuation does not get underlines.  This is not trivial to
+  implement because .%T then needs some features of in_line_eoln() -
+  slurp all arguments into one single text element - and one feature
+  of in_line() - put trailing punctuation out of scope.
+  Found in mount_nfs(8) and exports(5), search for "Appendix".
+  loc **  exist **  algo ***  size *  imp **
+
+- Trailing punctuation after .%T triggers EOS spacing, at least
+  outside .Rs (eek!).  Simply setting ARGSFL_DELIM for .%T is not
+  the right solution, it sends mandoc into an endless loop.
+  reported by Nicolas Joly  Sat, 17 Nov 2012 11:49:54 +0100
+  loc *  exist **  algo **  size *  imp **
+
+- global variables in the SYNOPSIS of section 3 pages
+  .Vt vs .Vt/.Va vs .Ft/.Va vs .Ft/.Fa ...
+  from kristaps@  Tue, 08 Jun 2010 11:13:32 +0200
+
+- implicit whitespace around inline equations
+  example code:  where '$times$' denotes matrix multiplication
+  must not have an HTML line break, nor a blank, before <math>
+  partial solution: html.c {"math", HTML_NLINSIDE | HTML_INDENT},
+  bentley@  Thu, 13 Jul 2017 19:00:59 -0600
+
+- in enclosures, mandoc sometimes fancies a bogus end of sentence
+  reminded by jmc@  Thu, 23 Sep 2010 18:13:39 +0059
+  loc *  exist **  algo ***  size *  imp ***
+
+- a line starting with "\fB something" counts as starting with whitespace
+  and triggers a line break; found in audio/normalize-mp3(1)
+  loc **  exist *  algo **  size *  imp **
+
+- formatting /usr/local/man/man1/latex2man.1 with groff and mandoc
+  reveals lots of bugs both in groff and mandoc...
+  reported by bentley@  Wed, 22 May 2013 23:49:30 -0600
+
+--- PostScript and PDF issues ------------------------------------------
+
+- PDF output doesn't use a monospaced font for .Bd -literal
+  Example: "mandoc -Tpdf afterboot.8 > output.pdf && pdfviewer output.pdf".
+  Search the text "Routing tables".
+  Also check what PostScript mode does when fixing this.
+  reported by juanfra@ Wed, 04 Jun 2014 21:44:58 +0200
+  instructions from juanfra@  Wed, 11 Jun 2014 02:21:01 +0200
+    add a new <</Type /Font>> block to the PDF files with /BaseFont /Courier
+    and change the /Name from /F0 to the new font (/F5 (?)).
+  re-reported by tb@ Mon, 16 Mar 2015 16:47:21 +0100
+  loc *  exist **  algo **  size *  imp **
+
+--- HTML issues --------------------------------------------------------
+
+- .Bf at the beginning of a paragraph inserts a bogus 1ex horizontal
+  space, see for example random(3).  Introduced in
+  http://mdocml.bsd.lv/cgi-bin/cvsweb/mdoc_html.c.diff?r1=1.91&r2=1.92
+  reported by deraadt@ Mon, 28 Sep 2015 20:14:13 -0600 (MDT)
+  loc **  exist **  algo **  size *  imp *
+
+- jsg on icb, Nov 3, 2014:
+  try to guess Xr in man(7) for hyperlinking
+  and render them with <a class="Xr" href=...>
+  https://github.com/Debian/debiman/issues/15
+  loc *  exist *  algo **  size **  imp **
+
+- The tables used to render the three-part page headers actually force
+  the width of the <body> to the max-width given for <html>.
+  Not yet sure how to fix that...
+  Observed by an Anonymous Coward on undeadly.org:
+  http://undeadly.org/cgi?action=article&sid=20140925064244&pid=1
+  loc *  exist *  algo **  size *  imp ***
+
+- generate <img> tags in HTML
+  idea from florian@  Tue, 7 Apr 2015 00:26:28 +0000
+  may be possible to implement with .Lk img://something.png alt_text
+
+- check https://github.com/trentm/mdocml
+
+************************************************************************
+* formatting issues: gratuitous differences
+************************************************************************
+
+- .Fn reopens a new scope after punctuation in mandoc,
+  but closes its scope for good in groff.
+  Do we want to change mandoc or groff?
+  Steffen Nurpmeso  Sat, 08 Nov 2014 13:34:59 +0100
+  loc *  exist **  algo **  size *  imp **
+
+- In .Bl -enum -width 0n, groff continues one the same line after
+  the number, mandoc breaks the line.
+  mail to kristaps@  Mon, 20 Jul 2009 02:21:39 +0200
+  loc *  exist **  algo **  size *  imp **
+
+- .Pp between two .It in .Bl -column should produce one,
+  not two blank lines, see e.g. login.conf(5).
+  reported by jmc@  Sun, 17 Apr 2011 14:04:58 +0059
+  reported again by sthen@  Wed, 18 Jan 2012 02:09:39 +0000 (UTC)
+  loc *  exist ***  algo **  size *  imp **
+
+- If the *first* line after .It is .Pp, break the line right after
+  the tag, do not pad with space characters before breaking.
+  See the description of the a, c, and i commands in sed(1).
+  loc *  exist **  algo **  size *  imp **
+
+- If the first line after .It is .D1, do not assert a blank line
+  in between, see for example tmux(1).
+  reported by nicm@  13 Jan 2011 00:18:57 +0000
+  loc *  exist **  algo **  size *  imp **
+
+- Trailing punctuation after .It should trigger EOS spacing.
+  reported by Nicolas Joly  Sat, 17 Nov 2012 11:49:54 +0100
+  Probably, this should be fixed somewhere in termp_it_pre(), not sure.
+  loc *  exist **  algo **  size *  imp **
+
+- When the -width string contains macros, the macros must be rendered
+  before measuring the width, for example
+    .Bl -tag -width ".Dv message"
+  in magic(5), located in src/usr.bin/file, is the same
+  as -width 7n, not -width 11n.
+  The same applies to .Bl -column column widths;
+  reported again by Nicolas Joly Thu, 1 Mar 2012 13:41:26 +0100 via wiz@ 5 Mar
+  reported again by Franco Fichtner Fri, 27 Sep 2013 21:02:28 +0200
+  reported again by Bruce Evans Fri, 17 Feb 2017 21:22:44 +0100 via bapt@
+  loc ***  exist ***  algo ***  size **  imp ***
+  An easy partial fix would be to just skip the first word if it starts
+  with a dot, including any following white space, when measuring.
+  loc *  exist *  algo *  size *  imp ***
+
+- The \& zero-width character counts as output.
+  That is, when it is alone on a line between two .Pp,
+  we want three blank lines, not two as in mandoc.
+  loc **  exist **  algo **  size *  imp **
+
+- Sequences of multiple man(7) paragraphs (.PP, .IP) interspersed
+  with .ps and .nf/.fi produce execessive blank lines, see libJudy
+  and graphics/dcmtk.  The parser reorg may help with this.
+
+- trailing whitespace must be ignored even when followed by a font escape,
+  see for example
+    makes
+    \fBdig \fR
+    operate in batch mode
+  in dig(1).
+  loc **  exist **  algo **  size *  imp **
+
+************************************************************************
+* warning issues
+************************************************************************
+
+- style message about macros inside .Bd -literal and .Dl, in particular
+  font changing macros like .Cm, .Ar, .Fa (from the mdoclint TODO)
+
+- style message about mismatches between the section number in the
+  file name (if it is known) and the section number in .Dt
+  (from the mdoclint TODO)
+
+- style message about NULL without .Dv (from the mdoclint TODO)
+
+- style message about error constants without .Er (from the mdoclint TODO)
+
+- warn when .Sh or .Ss contain other macros
+  Steffen Nurpmeso, savannah.gnu.org/bugs/index.php?45034
+  loc *  exist *  algo *  size *  imp **
+
+- style message about violations of the convention
+  .An name Aq Mt localpart at domain in AUTHORS (from the mdoclint TODO)
+
+- warn about attempts to call non-callable macros
+  Steffen Nurpmeso  Tue, 11 Nov 2014 22:55:16 +0100
+  Note that formatting is inconsistent in groff.
+  .Fn Po prints "Po()", .Ar Sh prints "file ..." and no "Sh".
+  Relatively hard because the relevant code is scattered
+  all over mdoc_macro.c and all subtly different.
+  loc **  exist **  algo **  size **  imp **
+
+- style message about suspicious uses of - vs. \- vs. \(mi
+  e.g. -1 is likely wrong (from the mdoclint TODO)
+
+- warn about punctuation - e.g. ',' and ';' - at the beginning
+  of a text line, if it is likely intended to follow the preceding
+  output without intervening whitespace, in particular after a
+  macro line (from the mdoclint TODO)
+
+- mandoc_special does not really check the escape sequence,
+  but just the overall format
+  loc **  exist **  algo ***  size **  imp **
+
+************************************************************************
+* documentation issues
+************************************************************************
+
+- dashes, hyphens, and minus signs in manual pages
+  jmc@ Fri, 28 Mar 2014 07:19:27 +0000
+
+- mark macros as: page structure domain, manual domain, general text domain
+  is this useful?
+
+- mention /usr/share/misc/mdoc.template in mdoc(7)?
+
+- Is all the content from http://www.std.com/obi/BSD/doc/usd/28.tbl/tbl
+  covered in tbl(7)?
+
+************************************************************************
+* performance issues
+************************************************************************
+
+- the PDF file is HUGE: this can be reduced by using relative offsets
+
+************************************************************************
+* structural issues
+************************************************************************
+
+- POSIX says in the documentation of sysconf(3) that PATH_MAX
+  is allowed to be so large that it is a bad idea to use it
+  for sizing static buffers.  So use dynamic buffers throughout.
+  See the file test-PATH_MAX.c for details.
+  Found by Aaron M. Ucko in the GNU Hurd via Bdale Garbee,
+  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829624
+
+- We use the input line number at several places to distinguish
+  same-line from different-line input.  That plainly doesn't work
+  with user-defined macros, leading to random breakage.
+
+- Is it possible to further simplify ENDBODY_SPACE?
+
+- Find better ways to prevent endless loops
+  in roff(7) macro and string expansion.
+
+- make buffers for parsing functions const
+  christos@ via wiz@  Fri, 18 Dec 2015 17:10:01 +0100
+
+- struct mparse refactoring
+  Steffen Nurpmeso  Thu, 04 Sep 2014 12:50:00 +0200
+
+************************************************************************
+* CGI issues
+************************************************************************
+
+ - Enable HTTP compression by detecting gzip encoding and filtering
+   output through libz.
+ - Sandbox (see OpenSSH).
+ - Enable caching support via HTTP 304 and If-Modified-Since.
+ - Have Mac OSX systems automatically disable -static compilation of the
+   CGI: -static isn't supported.
+
+************************************************************************
+* to improve in the groff_mdoc(7) macros
+************************************************************************
+
+- use uname(1) to set doc-default-operating-system at install time
+  tobimensch  Mon, 1 Dec 2014 00:25:07 +0100
+
+- apostrophe (39), circumflex (94), grave (96), tilde (126)
+  in manuals: \(aq, \(ha, \`, \(ti
+  Re: [Groff] ASCII Minus Sign in man Pages.
+  bentley@ 26 Apr 2017 10:02:06 -0600
+  Do we need to fix existing manuals?
+  Do we need to fix the definition of the mdoc(7) language?

Added: vendor/mandoc/dist/apropos.1
===================================================================
--- vendor/mandoc/dist/apropos.1	                        (rev 0)
+++ vendor/mandoc/dist/apropos.1	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,486 @@
+.\"	$Id: apropos.1,v 1.46 2017/07/04 23:40:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2011, 2012, 2014, 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 4 2017 $
+.Dt APROPOS 1
+.Os
+.Sh NAME
+.Nm apropos ,
+.Nm whatis
+.Nd search manual page databases
+.Sh SYNOPSIS
+.Nm
+.Op Fl afk
+.Op Fl C Ar file
+.Op Fl M Ar path
+.Op Fl m Ar path
+.Op Fl O Ar outkey
+.Op Fl S Ar arch
+.Op Fl s Ar section
+.Ar expression ...
+.Sh DESCRIPTION
+The
+.Nm apropos
+and
+.Nm whatis
+utilities query manual page databases generated by
+.Xr makewhatis 8 ,
+evaluating
+.Ar expression
+for each file in each database.
+By default, they display the names, section numbers, and description lines
+of all matching manuals.
+.Pp
+By default,
+.Nm
+searches for
+.Xr makewhatis 8
+databases in the default paths stipulated by
+.Xr man 1
+and uses case-insensitive substring matching
+.Pq the Cm = No operator
+over manual names and descriptions
+.Pq the Li \&Nm No and Li \&Nd No macro keys .
+Multiple terms imply pairwise
+.Fl o .
+.Pp
+.Nm whatis
+is a synonym for
+.Nm
+.Fl f .
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl a
+Instead of showing only the title lines, show the complete manual pages,
+just like
+.Xr man 1
+.Fl a
+would.
+If the standard output is a terminal device and
+.Fl c
+is not specified, use
+.Xr more 1
+to paginate them.
+In
+.Fl a
+mode, the options
+.Fl IKOTW
+described in the
+.Xr mandoc 1
+manual are also available.
+.It Fl C Ar file
+Specify an alternative configuration
+.Ar file
+in
+.Xr man.conf 5
+format.
+.It Fl f
+Search for all words in
+.Ar expression
+in manual page names only.
+The search is case insensitive and matches whole words only.
+In this mode, macro keys, comparison operators, and logical operators
+are not available.
+.It Fl k
+Support the full
+.Ar expression
+syntax.
+It is the default for
+.Nm .
+.It Fl M Ar path
+Use the colon-separated path instead of the default list of paths
+searched for
+.Xr makewhatis 8
+databases.
+Invalid paths, or paths without manual databases, are ignored.
+.It Fl m Ar path
+Prepend the colon-separated paths to the list of paths searched
+for
+.Xr makewhatis 8
+databases.
+Invalid paths, or paths without manual databases, are ignored.
+.It Fl O Ar outkey
+Show the values associated with the key
+.Ar outkey
+instead of the manual descriptions.
+.It Fl S Ar arch
+Restrict the search to pages for the specified
+.Xr machine 1
+architecture.
+.Ar arch
+is case insensitive.
+By default, pages for all architectures are shown.
+.It Fl s Ar section
+Restrict the search to the specified section of the manual.
+By default, pages from all sections are shown.
+See
+.Xr man 1
+for a listing of sections.
+.El
+.Pp
+The options
+.Fl chlw
+are also supported and are documented in
+.Xr man 1 .
+The options
+.Fl fkl
+are mutually exclusive and override each other.
+.Pp
+An
+.Ar expression
+consists of search terms joined by logical operators
+.Fl a
+.Pq and
+and
+.Fl o
+.Pq or .
+The
+.Fl a
+operator has precedence over
+.Fl o
+and both are evaluated left-to-right.
+.Bl -tag -width Ds
+.It \&( Ar expr No \&)
+True if the subexpression
+.Ar expr
+is true.
+.It Ar expr1 Fl a Ar expr2
+True if both
+.Ar expr1
+and
+.Ar expr2
+are true (logical
+.Sq and ) .
+.It Ar expr1 Oo Fl o Oc Ar expr2
+True if
+.Ar expr1
+and/or
+.Ar expr2
+evaluate to true (logical
+.Sq or ) .
+.It Ar term
+True if
+.Ar term
+is satisfied.
+This has syntax
+.Sm off
+.Oo
+.Op Ar key Op , Ar key ...
+.Pq Cm = | \(ti
+.Oc
+.Ar val ,
+.Sm on
+where
+.Ar key
+is an
+.Xr mdoc 7
+macro to query and
+.Ar val
+is its value.
+See
+.Sx Macro Keys
+for a list of available keys.
+Operator
+.Cm =
+evaluates a substring, while
+.Cm \(ti
+evaluates a regular expression.
+.It Fl i Ar term
+If
+.Ar term
+is a regular expression, it
+is evaluated case-insensitively.
+Has no effect on substring terms.
+.El
+.Pp
+Results are sorted according to the following criteria:
+.Bl -enum
+.It
+The manpath directory tree the page is found in, according to the
+order specified with
+.Fl M ,
+.Fl m ,
+the
+.Ev MANPATH
+environment variable, the
+.Xr man.conf 5
+configuration file, or the default documented in
+.Xr man.conf 5 .
+.It
+The section number in ascending numerical order.
+.It
+The page name in ascending
+.Xr ascii 7
+alphabetical order, case-insensitive.
+.El
+.Pp
+Each output line is formatted as
+.Pp
+.D1 name[, name...](sec) \- description
+.Pp
+Where
+.Dq name
+is the manual's name,
+.Dq sec
+is the manual section, and
+.Dq description
+is the manual's short description.
+If an architecture is specified for the manual, it is displayed as
+.Pp
+.D1 name(sec/arch) \- description
+.Pp
+Resulting manuals may be accessed as
+.Pp
+.Dl $ man \-s sec name
+.Pp
+If an architecture is specified in the output, use
+.Pp
+.Dl $ man \-s sec \-S arch name
+.Ss Macro Keys
+Queries evaluate over a subset of
+.Xr mdoc 7
+macros indexed by
+.Xr makewhatis 8 .
+In addition to the macro keys listed below, the special key
+.Cm any
+may be used to match any available macro key.
+.Pp
+Names and description:
+.Bl -column "xLix" description -offset indent -compact
+.It Li \&Nm Ta manual name
+.It Li \&Nd Ta one-line manual description
+.It Li arch Ta machine architecture (case-insensitive)
+.It Li sec  Ta manual section number
+.El
+.Pp
+Sections and cross references:
+.Bl -column "xLix" description -offset indent -compact
+.It Li \&Sh Ta section header (excluding standard sections)
+.It Li \&Ss Ta subsection header
+.It Li \&Xr Ta cross reference to another manual page
+.It Li \&Rs Ta bibliographic reference
+.El
+.Pp
+Semantic markup for command line utilities:
+.Bl -column "xLix" description -offset indent -compact
+.It Li \&Fl Ta command line options (flags)
+.It Li \&Cm Ta command modifier
+.It Li \&Ar Ta command argument
+.It Li \&Ic Ta internal or interactive command
+.It Li \&Ev Ta environmental variable
+.It Li \&Pa Ta file system path
+.El
+.Pp
+Semantic markup for function libraries:
+.Bl -column "xLix" description -offset indent -compact
+.It Li \&Lb Ta function library name
+.It Li \&In Ta include file
+.It Li \&Ft Ta function return type
+.It Li \&Fn Ta function name
+.It Li \&Fa Ta function argument type and name
+.It Li \&Vt Ta variable type
+.It Li \&Va Ta variable name
+.It Li \&Dv Ta defined variable or preprocessor constant
+.It Li \&Er Ta error constant
+.It Li \&Ev Ta environmental variable
+.El
+.Pp
+Various semantic markup:
+.Bl -column "xLix" description -offset indent -compact
+.It Li \&An Ta author name
+.It Li \&Lk Ta hyperlink
+.It Li \&Mt Ta Do mailto Dc hyperlink
+.It Li \&Cd Ta kernel configuration declaration
+.It Li \&Ms Ta mathematical symbol
+.It Li \&Tn Ta tradename
+.El
+.Pp
+Physical markup:
+.Bl -column "xLix" description -offset indent -compact
+.It Li \&Em Ta italic font or underline
+.It Li \&Sy Ta boldface font
+.It Li \&Li Ta typewriter font
+.El
+.Pp
+Text production:
+.Bl -column "xLix" description -offset indent -compact
+.It Li \&St Ta reference to a standards document
+.It Li \&At Ta At No version reference
+.It Li \&Bx Ta Bx No version reference
+.It Li \&Bsx Ta Bsx No version reference
+.It Li \&Nx Ta Nx No version reference
+.It Li \&Fx Ta Fx No version reference
+.It Li \&Ox Ta Ox No version reference
+.It Li \&Dx Ta Dx No version reference
+.El
+.Sh ENVIRONMENT
+.Bl -tag -width MANPAGER
+.It Ev MANPAGER
+Any non-empty value of the environment variable
+.Ev MANPAGER
+is used instead of the standard pagination program,
+.Xr more 1 ;
+see
+.Xr man 1
+for details.
+Only used if
+.Fl a
+or
+.Fl l
+is specified.
+.It Ev MANPATH
+A colon-separated list of directories to search for manual pages; see
+.Xr man 1
+for details.
+Overridden by
+.Fl M ,
+ignored if
+.Fl l
+is specified.
+.It Ev PAGER
+Specifies the pagination program to use when
+.Ev MANPAGER
+is not defined.
+If neither PAGER nor MANPAGER is defined,
+.Xr more 1
+.Fl s
+is used.
+Only used if
+.Fl a
+or
+.Fl l
+is specified.
+.El
+.Sh FILES
+.Bl -tag -width "/etc/man.conf" -compact
+.It Pa mandoc.db
+name of the
+.Xr makewhatis 8
+keyword database
+.It Pa /etc/man.conf
+default
+.Xr man 1
+configuration file
+.El
+.Sh EXIT STATUS
+.Ex -std
+.Sh EXAMPLES
+Search for
+.Qq .cf
+as a substring of manual names and descriptions:
+.Pp
+.Dl $ apropos .cf
+.Pp
+Include matches for
+.Qq .cnf
+and
+.Qq .conf
+as well:
+.Pp
+.Dl $ apropos .cf .cnf .conf
+.Pp
+Search in names and descriptions using a regular expression:
+.Pp
+.Dl $ apropos \(aq\(tiset.?[ug]id\(aq
+.Pp
+Search for manuals in the library section mentioning both the
+.Qq optind
+and the
+.Qq optarg
+variables:
+.Pp
+.Dl $ apropos \-s 3 Va=optind \-a Va=optarg
+.Pp
+Do exactly the same as calling
+.Nm whatis
+with the argument
+.Qq ssh :
+.Pp
+.Dl $ apropos \-\- \-i \(aqNm\(ti[[:<:]]ssh[[:>:]]\(aq
+.Pp
+The following two invocations are equivalent:
+.Pp
+.D1 Li $ apropos -S Ar arch Li -s Ar section expression
+.Bd -ragged -offset indent
+.Li $ apropos \e( Ar expression Li \e)
+.Li -a arch\(ti^( Ns Ar arch Ns Li |any)$
+.Li -a sec\(ti^ Ns Ar section Ns Li $
+.Ed
+.Sh SEE ALSO
+.Xr man 1 ,
+.Xr re_format 7 ,
+.Xr makewhatis 8
+.Sh HISTORY
+Part of the functionality of
+.Nm whatis
+was already provided by the former
+.Nm manwhere
+utility in
+.Bx 1 .
+The
+.Nm
+and
+.Nm whatis
+utilities first appeared in
+.Bx 2 .
+They were rewritten from scratch for
+.Ox 5.6 .
+.Pp
+The
+.Fl M
+option and the
+.Ev MANPATH
+variable first appeared in
+.Bx 4.3 ;
+.Fl m
+in
+.Bx 4.3 Reno ;
+.Fl C
+in
+.Bx 4.4 Lite1 ;
+and
+.Fl S
+and
+.Fl s
+in
+.Ox 4.5
+for
+.Nm
+and in
+.Ox 5.6
+for
+.Nm whatis .
+The options
+.Fl acfhIKklOTWw
+appeared in
+.Ox 5.7 .
+.Sh AUTHORS
+.An -nosplit
+.An Bill Joy
+wrote
+.Nm manwhere
+in 1977 and the original
+.Bx
+.Nm
+and
+.Nm whatis
+in February 1979.
+The current version was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+and
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .

Added: vendor/mandoc/dist/att.c
===================================================================
--- vendor/mandoc/dist/att.c	                        (rev 0)
+++ vendor/mandoc/dist/att.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,51 @@
+/*	$Id: att.c,v 1.16 2017/06/24 14:38:32 schwarze Exp $ */
+/*
+ * Copyright (c) 2009 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmdoc.h"
+
+#define LINE(x, y) \
+	if (0 == strcmp(p, x)) return(y)
+
+
+const char *
+mdoc_a2att(const char *p)
+{
+
+	LINE("v1",	"Version\\~1 AT&T UNIX");
+	LINE("v2",	"Version\\~2 AT&T UNIX");
+	LINE("v3",	"Version\\~3 AT&T UNIX");
+	LINE("v4",	"Version\\~4 AT&T UNIX");
+	LINE("v5",	"Version\\~5 AT&T UNIX");
+	LINE("v6",	"Version\\~6 AT&T UNIX");
+	LINE("v7",	"Version\\~7 AT&T UNIX");
+	LINE("32v",	"Version\\~32V AT&T UNIX");
+	LINE("III",	"AT&T System\\~III UNIX");
+	LINE("V",	"AT&T System\\~V UNIX");
+	LINE("V.1",	"AT&T System\\~V Release\\~1 UNIX");
+	LINE("V.2",	"AT&T System\\~V Release\\~2 UNIX");
+	LINE("V.3",	"AT&T System\\~V Release\\~3 UNIX");
+	LINE("V.4",	"AT&T System\\~V Release\\~4 UNIX");
+
+	return NULL;
+}

Added: vendor/mandoc/dist/catman.8
===================================================================
--- vendor/mandoc/dist/catman.8	                        (rev 0)
+++ vendor/mandoc/dist/catman.8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,186 @@
+.\"	$Id: catman.8,v 1.8 2017/03/18 19:56:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: March 18 2017 $
+.Dt CATMAN 8
+.Os
+.Sh NAME
+.Nm catman
+.Nd format all manual pages below a directory
+.Sh SYNOPSIS
+.Nm catman
+.Op Fl I Cm os Ns = Ns Ar name
+.Op Fl T Ar output
+.Ar srcdir dstdir
+.Sh DESCRIPTION
+The
+.Nm
+utility assumes that all files below
+.Ar srcdir
+are manual pages in
+.Xr mdoc 7
+and
+.Xr man 7
+format and formats all of them, storing the formatted versions in
+the same relative paths below
+.Ar dstdir .
+Subdirectories of
+.Ar dstdir
+are created as needed.
+Existing files are not explicitly deleted, but possibly overwritten.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl I Cm os Ns = Ns Ar name
+Override the default operating system
+.Ar name
+for the
+.Xr mdoc 7
+.Ic \&Os
+and for the
+.Xr man 7
+.Ic TH
+macro.
+.It Fl T Ar output
+Output format.
+The
+.Ar output
+argument can be
+.Cm ascii ,
+.Cm utf8 ,
+or
+.Cm html ;
+see
+.Xr mandoc 1 .
+In
+.Cm html
+output mode, the
+.Cm fragment
+output option is implied.
+Other output options are not supported.
+.El
+.Sh IMPLEMENTATION NOTES
+Since this version avoids
+.Xr fork 2
+and
+.Xr exec 3
+overhead and uses the much faster
+.Sy mandoc
+parsers and formatters rather than
+.Sy groff ,
+it may be about one order of magnitude faster than other
+.Nm
+implementations.
+.Sh EXIT STATUS
+.Ex -std
+.Pp
+Possible errors include:
+.Bl -bullet
+.It
+missing, invalid, or excessive command line arguments
+.It
+failure to change the current working directory to
+.Ar srcdir
+.It
+failure to open
+.Ar dstdir
+.It
+communication failure with
+.Xr mandocd 8
+.It
+resource exhaustion, for example file descriptor, process table,
+or memory exhaustion
+.El
+.Pp
+Except for memory exhaustion and similar system-level failures,
+failures while trying to open, read, parse, or format individual
+manual pages, to save individual formatted files to the file system,
+or even to create directories do not cause
+.Nm
+to return an error exit status.
+In such cases,
+.Nm
+will simply continue with the next file or subdirectory.
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr mandocd 8
+.Sh HISTORY
+A
+.Nm
+utility first appeared in
+.Fx 1.0 .
+Other, incompatible implementations appeared in
+.Nx 1.0
+and in
+.Sy man-db No 2.2 .
+.Pp
+This version appeared in version 1.14.1 of the
+.Sy mandoc
+toolkit.
+.Sh AUTHORS
+.An -nosplit
+The first
+.Nm
+implementation was a short shell script by
+.An Christoph Robitschko
+in July 1993.
+.Pp
+The
+.Nx
+implementations were written by
+.An J. T. Conklin Aq Mt jtc at netbsd.org
+in 1993,
+.An Christian E. Hopps Aq Mt chopps at netbsd.org
+in 1994,
+and
+.An Dante Profeta Aq Mt dante at netbsd.org
+in 1999; the
+.Sy man-db
+implementation by
+.An Graeme W. Wilford
+in 1994; and the
+.Fx
+implementations by
+.An Wolfram Schneider Aq Mt wosch at freebsd.org
+in 1995 and
+.An John Rochester Aq Mt john at jrochester.org
+in 2002.
+.Pp
+The concept of the present version was designed and implemented by
+.An Michael Stapelberg Aq Mt stapelberg at debian.org
+in 2017.
+Option and argument handling and directory iteration was added by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .
+.Sh CAVEATS
+All versions of
+.Nm
+are incompatible with each other because each caters to the needs
+of a specific operating system, for example regarding directory
+structures and file naming conventions.
+.Pp
+This version is more flexible than the others in so far as it does
+not assume any particular directory structure or naming convention.
+That flexibility comes at the price of not being able to change the
+names and relative paths of the source files when reusing them to
+store the formatted files, of not supporting any configuration file
+formats or environment variables, and of being unable to scan for
+and remove junk files in
+.Ar dstdir .
+.Pp
+Currently,
+.Nm
+always reformats each page, even if the formatted version is newer
+than the source version.

Added: vendor/mandoc/dist/catman.c
===================================================================
--- vendor/mandoc/dist/catman.c	                        (rev 0)
+++ vendor/mandoc/dist/catman.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,260 @@
+/*	$Id: catman.c,v 1.21 2017/02/18 12:24:24 schwarze Exp $ */
+/*
+ * Copyright (c) 2017 Michael Stapelberg <stapelberg at debian.org>
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#if HAVE_CMSG_XPG42
+#define _XPG4_2
+#endif
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#if HAVE_FTS
+#include <fts.h>
+#else
+#include "compat_fts.h"
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+int	 process_manpage(int, int, const char *);
+int	 process_tree(int, int);
+void	 run_mandocd(int, const char *, const char *)
+		__attribute__((__noreturn__));
+ssize_t	 sock_fd_write(int, int, int, int);
+void	 usage(void) __attribute__((__noreturn__));
+
+
+void
+run_mandocd(int sockfd, const char *outtype, const char* defos)
+{
+	char	 sockfdstr[10];
+
+	if (snprintf(sockfdstr, sizeof(sockfdstr), "%d", sockfd) == -1)
+		err(1, "snprintf");
+	if (defos == NULL)
+		execlp("mandocd", "mandocd", "-T", outtype,
+		    sockfdstr, (char *)NULL);
+	else
+		execlp("mandocd", "mandocd", "-T", outtype,
+		    "-I", defos, sockfdstr, (char *)NULL);
+	err(1, "exec");
+}
+
+ssize_t
+sock_fd_write(int fd, int fd0, int fd1, int fd2)
+{
+	const struct timespec timeout = { 0, 10000000 };  /* 0.01 s */
+	struct msghdr	 msg;
+	struct iovec	 iov;
+	union {
+		struct cmsghdr	 cmsghdr;
+		char		 control[CMSG_SPACE(3 * sizeof(int))];
+	} cmsgu;
+	struct cmsghdr	*cmsg;
+	int		*walk;
+	ssize_t		 sz;
+	unsigned char	 dummy[1] = {'\0'};
+
+	iov.iov_base = dummy;
+	iov.iov_len = sizeof(dummy);
+
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	msg.msg_control = cmsgu.control;
+	msg.msg_controllen = sizeof(cmsgu.control);
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	cmsg->cmsg_len = CMSG_LEN(3 * sizeof(int));
+	cmsg->cmsg_level = SOL_SOCKET;
+	cmsg->cmsg_type = SCM_RIGHTS;
+
+	walk = (int *)CMSG_DATA(cmsg);
+	*(walk++) = fd0;
+	*(walk++) = fd1;
+	*(walk++) = fd2;
+
+	/*
+	 * It appears that on some systems, sendmsg(3)
+	 * may return EAGAIN even in blocking mode.
+	 * Seen for example on Oracle Solaris 11.2.
+	 * The sleeping time was chosen by experimentation,
+	 * to neither cause more than a handful of retries
+	 * in normal operation nor unnecessary delays.
+	 */
+	for (;;) {
+		if ((sz = sendmsg(fd, &msg, 0)) != -1 ||
+		    errno != EAGAIN)
+			break;
+		nanosleep(&timeout, NULL);
+	}
+	return sz;
+}
+
+int
+process_manpage(int srv_fd, int dstdir_fd, const char *path)
+{
+	int	 in_fd, out_fd;
+	int	 irc;
+
+	if ((in_fd = open(path, O_RDONLY)) == -1) {
+		warn("open(%s)", path);
+		return 0;
+	}
+
+	if ((out_fd = openat(dstdir_fd, path,
+	    O_WRONLY | O_NOFOLLOW | O_CREAT | O_TRUNC,
+	    S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) == -1) {
+		warn("openat(%s)", path);
+		close(in_fd);
+		return 0;
+	}
+
+	irc = sock_fd_write(srv_fd, in_fd, out_fd, STDERR_FILENO);
+
+	close(in_fd);
+	close(out_fd);
+
+	if (irc < 0) {
+		warn("sendmsg");
+		return -1;
+	}
+	return 0;
+}
+
+int
+process_tree(int srv_fd, int dstdir_fd)
+{
+	FTS		*ftsp;
+	FTSENT		*entry;
+	const char	*argv[2];
+	const char	*path;
+
+	argv[0] = ".";
+	argv[1] = (char *)NULL;
+
+	if ((ftsp = fts_open((char * const *)argv,
+	    FTS_PHYSICAL | FTS_NOCHDIR, NULL)) == NULL) {
+		warn("fts_open");
+		return -1;
+	}
+
+	while ((entry = fts_read(ftsp)) != NULL) {
+		path = entry->fts_path + 2;
+		switch (entry->fts_info) {
+		case FTS_F:
+			if (process_manpage(srv_fd, dstdir_fd, path) == -1) {
+				fts_close(ftsp);
+				return -1;
+			}
+			break;
+		case FTS_D:
+			if (*path != '\0' &&
+			    mkdirat(dstdir_fd, path, S_IRWXU | S_IRGRP |
+			      S_IXGRP | S_IROTH | S_IXOTH) == -1 &&
+			    errno != EEXIST) {
+				warn("mkdirat(%s)", path);
+				(void)fts_set(ftsp, entry, FTS_SKIP);
+			}
+			break;
+		case FTS_DP:
+			break;
+		default:
+			warnx("%s: not a regular file", path);
+			break;
+		}
+	}
+
+	fts_close(ftsp);
+	return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+	const char	*defos, *outtype;
+	int		 srv_fds[2];
+	int		 dstdir_fd;
+	int		 opt;
+	pid_t		 pid;
+
+	defos = NULL;
+	outtype = "ascii";
+	while ((opt = getopt(argc, argv, "I:T:")) != -1) {
+		switch (opt) {
+		case 'I':
+			defos = optarg;
+			break;
+		case 'T':
+			outtype = optarg;
+			break;
+		default:
+			usage();
+		}
+	}
+
+	if (argc > 0) {
+		argc -= optind;
+		argv += optind;
+	}
+	if (argc != 2)
+		usage();
+
+	if (socketpair(AF_LOCAL, SOCK_STREAM, AF_UNSPEC, srv_fds) == -1)
+		err(1, "socketpair");
+
+	pid = fork();
+	switch (pid) {
+	case -1:
+		err(1, "fork");
+	case 0:
+		close(srv_fds[0]);
+		run_mandocd(srv_fds[1], outtype, defos);
+	default:
+		break;
+	}
+	close(srv_fds[1]);
+
+	if ((dstdir_fd = open(argv[1], O_RDONLY | O_DIRECTORY)) == -1)
+		err(1, "open(%s)", argv[1]);
+
+	if (chdir(argv[0]) == -1)
+		err(1, "chdir(%s)", argv[0]);
+
+	return process_tree(srv_fds[0], dstdir_fd) == -1 ? 1 : 0;
+}
+
+void
+usage(void)
+{
+	fprintf(stderr, "usage: %s [-I os=name] [-T output] "
+	    "srcdir dstdir\n", BINM_CATMAN);
+	exit(1);
+}

Added: vendor/mandoc/dist/cgi.c
===================================================================
--- vendor/mandoc/dist/cgi.c	                        (rev 0)
+++ vendor/mandoc/dist/cgi.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1242 @@
+/*	$Id: cgi.c,v 1.156 2017/06/24 14:38:32 schwarze Exp $ */
+/*
+ * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze at usta.de>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/time.h>
+
+#include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "main.h"
+#include "manconf.h"
+#include "mansearch.h"
+#include "cgi.h"
+
+/*
+ * A query as passed to the search function.
+ */
+struct	query {
+	char		*manpath; /* desired manual directory */
+	char		*arch; /* architecture */
+	char		*sec; /* manual section */
+	char		*query; /* unparsed query expression */
+	int		 equal; /* match whole names, not substrings */
+};
+
+struct	req {
+	struct query	  q;
+	char		**p; /* array of available manpaths */
+	size_t		  psz; /* number of available manpaths */
+	int		  isquery; /* QUERY_STRING used, not PATH_INFO */
+};
+
+enum	focus {
+	FOCUS_NONE = 0,
+	FOCUS_QUERY
+};
+
+static	void		 html_print(const char *);
+static	void		 html_putchar(char);
+static	int		 http_decode(char *);
+static	void		 parse_manpath_conf(struct req *);
+static	void		 parse_path_info(struct req *req, const char *path);
+static	void		 parse_query_string(struct req *, const char *);
+static	void		 pg_error_badrequest(const char *);
+static	void		 pg_error_internal(void);
+static	void		 pg_index(const struct req *);
+static	void		 pg_noresult(const struct req *, const char *);
+static	void		 pg_redirect(const struct req *, const char *);
+static	void		 pg_search(const struct req *);
+static	void		 pg_searchres(const struct req *,
+				struct manpage *, size_t);
+static	void		 pg_show(struct req *, const char *);
+static	void		 resp_begin_html(int, const char *, const char *);
+static	void		 resp_begin_http(int, const char *);
+static	void		 resp_catman(const struct req *, const char *);
+static	void		 resp_copy(const char *);
+static	void		 resp_end_html(void);
+static	void		 resp_format(const struct req *, const char *);
+static	void		 resp_searchform(const struct req *, enum focus);
+static	void		 resp_show(const struct req *, const char *);
+static	void		 set_query_attr(char **, char **);
+static	int		 validate_filename(const char *);
+static	int		 validate_manpath(const struct req *, const char *);
+static	int		 validate_urifrag(const char *);
+
+static	const char	 *scriptname = SCRIPT_NAME;
+
+static	const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
+static	const char *const sec_numbers[] = {
+    "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
+};
+static	const char *const sec_names[] = {
+    "All Sections",
+    "1 - General Commands",
+    "2 - System Calls",
+    "3 - Library Functions",
+    "3p - Perl Library",
+    "4 - Device Drivers",
+    "5 - File Formats",
+    "6 - Games",
+    "7 - Miscellaneous Information",
+    "8 - System Manager\'s Manual",
+    "9 - Kernel Developer\'s Manual"
+};
+static	const int sec_MAX = sizeof(sec_names) / sizeof(char *);
+
+static	const char *const arch_names[] = {
+    "amd64",       "alpha",       "armv7",	"arm64",
+    "hppa",        "i386",        "landisk",
+    "loongson",    "luna88k",     "macppc",      "mips64",
+    "octeon",      "sgi",         "socppc",      "sparc64",
+    "amiga",       "arc",         "armish",      "arm32",
+    "atari",       "aviion",      "beagle",      "cats",
+    "hppa64",      "hp300",
+    "ia64",        "mac68k",      "mvme68k",     "mvme88k",
+    "mvmeppc",     "palm",        "pc532",       "pegasos",
+    "pmax",        "powerpc",     "solbourne",   "sparc",
+    "sun3",        "vax",         "wgrisc",      "x68k",
+    "zaurus"
+};
+static	const int arch_MAX = sizeof(arch_names) / sizeof(char *);
+
+/*
+ * Print a character, escaping HTML along the way.
+ * This will pass non-ASCII straight to output: be warned!
+ */
+static void
+html_putchar(char c)
+{
+
+	switch (c) {
+	case '"':
+		printf(""");
+		break;
+	case '&':
+		printf("&");
+		break;
+	case '>':
+		printf(">");
+		break;
+	case '<':
+		printf("<");
+		break;
+	default:
+		putchar((unsigned char)c);
+		break;
+	}
+}
+
+/*
+ * Call through to html_putchar().
+ * Accepts NULL strings.
+ */
+static void
+html_print(const char *p)
+{
+
+	if (NULL == p)
+		return;
+	while ('\0' != *p)
+		html_putchar(*p++);
+}
+
+/*
+ * Transfer the responsibility for the allocated string *val
+ * to the query structure.
+ */
+static void
+set_query_attr(char **attr, char **val)
+{
+
+	free(*attr);
+	if (**val == '\0') {
+		*attr = NULL;
+		free(*val);
+	} else
+		*attr = *val;
+	*val = NULL;
+}
+
+/*
+ * Parse the QUERY_STRING for key-value pairs
+ * and store the values into the query structure.
+ */
+static void
+parse_query_string(struct req *req, const char *qs)
+{
+	char		*key, *val;
+	size_t		 keysz, valsz;
+
+	req->isquery	= 1;
+	req->q.manpath	= NULL;
+	req->q.arch	= NULL;
+	req->q.sec	= NULL;
+	req->q.query	= NULL;
+	req->q.equal	= 1;
+
+	key = val = NULL;
+	while (*qs != '\0') {
+
+		/* Parse one key. */
+
+		keysz = strcspn(qs, "=;&");
+		key = mandoc_strndup(qs, keysz);
+		qs += keysz;
+		if (*qs != '=')
+			goto next;
+
+		/* Parse one value. */
+
+		valsz = strcspn(++qs, ";&");
+		val = mandoc_strndup(qs, valsz);
+		qs += valsz;
+
+		/* Decode and catch encoding errors. */
+
+		if ( ! (http_decode(key) && http_decode(val)))
+			goto next;
+
+		/* Handle key-value pairs. */
+
+		if ( ! strcmp(key, "query"))
+			set_query_attr(&req->q.query, &val);
+
+		else if ( ! strcmp(key, "apropos"))
+			req->q.equal = !strcmp(val, "0");
+
+		else if ( ! strcmp(key, "manpath")) {
+#ifdef COMPAT_OLDURI
+			if ( ! strncmp(val, "OpenBSD ", 8)) {
+				val[7] = '-';
+				if ('C' == val[8])
+					val[8] = 'c';
+			}
+#endif
+			set_query_attr(&req->q.manpath, &val);
+		}
+
+		else if ( ! (strcmp(key, "sec")
+#ifdef COMPAT_OLDURI
+		    && strcmp(key, "sektion")
+#endif
+		    )) {
+			if ( ! strcmp(val, "0"))
+				*val = '\0';
+			set_query_attr(&req->q.sec, &val);
+		}
+
+		else if ( ! strcmp(key, "arch")) {
+			if ( ! strcmp(val, "default"))
+				*val = '\0';
+			set_query_attr(&req->q.arch, &val);
+		}
+
+		/*
+		 * The key must be freed in any case.
+		 * The val may have been handed over to the query
+		 * structure, in which case it is now NULL.
+		 */
+next:
+		free(key);
+		key = NULL;
+		free(val);
+		val = NULL;
+
+		if (*qs != '\0')
+			qs++;
+	}
+}
+
+/*
+ * HTTP-decode a string.  The standard explanation is that this turns
+ * "%4e+foo" into "n foo" in the regular way.  This is done in-place
+ * over the allocated string.
+ */
+static int
+http_decode(char *p)
+{
+	char             hex[3];
+	char		*q;
+	int              c;
+
+	hex[2] = '\0';
+
+	q = p;
+	for ( ; '\0' != *p; p++, q++) {
+		if ('%' == *p) {
+			if ('\0' == (hex[0] = *(p + 1)))
+				return 0;
+			if ('\0' == (hex[1] = *(p + 2)))
+				return 0;
+			if (1 != sscanf(hex, "%x", &c))
+				return 0;
+			if ('\0' == c)
+				return 0;
+
+			*q = (char)c;
+			p += 2;
+		} else
+			*q = '+' == *p ? ' ' : *p;
+	}
+
+	*q = '\0';
+	return 1;
+}
+
+static void
+resp_begin_http(int code, const char *msg)
+{
+
+	if (200 != code)
+		printf("Status: %d %s\r\n", code, msg);
+
+	printf("Content-Type: text/html; charset=utf-8\r\n"
+	     "Cache-Control: no-cache\r\n"
+	     "Pragma: no-cache\r\n"
+	     "\r\n");
+
+	fflush(stdout);
+}
+
+static void
+resp_copy(const char *filename)
+{
+	char	 buf[4096];
+	ssize_t	 sz;
+	int	 fd;
+
+	if ((fd = open(filename, O_RDONLY)) != -1) {
+		fflush(stdout);
+		while ((sz = read(fd, buf, sizeof(buf))) > 0)
+			write(STDOUT_FILENO, buf, sz);
+		close(fd);
+	}
+}
+
+static void
+resp_begin_html(int code, const char *msg, const char *file)
+{
+	char	*cp;
+
+	resp_begin_http(code, msg);
+
+	printf("<!DOCTYPE html>\n"
+	       "<html>\n"
+	       "<head>\n"
+	       "  <meta charset=\"UTF-8\"/>\n"
+	       "  <link rel=\"stylesheet\" href=\"%s/mandoc.css\""
+	       " type=\"text/css\" media=\"all\">\n"
+	       "  <title>",
+	       CSS_DIR);
+	if (file != NULL) {
+		if ((cp = strrchr(file, '/')) != NULL)
+			file = cp + 1;
+		if ((cp = strrchr(file, '.')) != NULL) {
+			printf("%.*s(%s) - ", (int)(cp - file), file, cp + 1);
+		} else
+			printf("%s - ", file);
+	}
+	printf("%s</title>\n"
+	       "</head>\n"
+	       "<body>\n",
+	       CUSTOMIZE_TITLE);
+
+	resp_copy(MAN_DIR "/header.html");
+}
+
+static void
+resp_end_html(void)
+{
+
+	resp_copy(MAN_DIR "/footer.html");
+
+	puts("</body>\n"
+	     "</html>");
+}
+
+static void
+resp_searchform(const struct req *req, enum focus focus)
+{
+	int		 i;
+
+	printf("<form action=\"/%s\" method=\"get\">\n"
+	       "  <fieldset>\n"
+	       "    <legend>Manual Page Search Parameters</legend>\n",
+	       scriptname);
+
+	/* Write query input box. */
+
+	printf("    <input type=\"text\" name=\"query\" value=\"");
+	if (req->q.query != NULL)
+		html_print(req->q.query);
+	printf( "\" size=\"40\"");
+	if (focus == FOCUS_QUERY)
+		printf(" autofocus");
+	puts(">");
+
+	/* Write submission buttons. */
+
+	printf(	"    <button type=\"submit\" name=\"apropos\" value=\"0\">"
+		"man</button>\n"
+		"    <button type=\"submit\" name=\"apropos\" value=\"1\">"
+		"apropos</button>\n"
+		"    <br/>\n");
+
+	/* Write section selector. */
+
+	puts("    <select name=\"sec\">");
+	for (i = 0; i < sec_MAX; i++) {
+		printf("      <option value=\"%s\"", sec_numbers[i]);
+		if (NULL != req->q.sec &&
+		    0 == strcmp(sec_numbers[i], req->q.sec))
+			printf(" selected=\"selected\"");
+		printf(">%s</option>\n", sec_names[i]);
+	}
+	puts("    </select>");
+
+	/* Write architecture selector. */
+
+	printf(	"    <select name=\"arch\">\n"
+		"      <option value=\"default\"");
+	if (NULL == req->q.arch)
+		printf(" selected=\"selected\"");
+	puts(">All Architectures</option>");
+	for (i = 0; i < arch_MAX; i++) {
+		printf("      <option value=\"%s\"", arch_names[i]);
+		if (NULL != req->q.arch &&
+		    0 == strcmp(arch_names[i], req->q.arch))
+			printf(" selected=\"selected\"");
+		printf(">%s</option>\n", arch_names[i]);
+	}
+	puts("    </select>");
+
+	/* Write manpath selector. */
+
+	if (req->psz > 1) {
+		puts("    <select name=\"manpath\">");
+		for (i = 0; i < (int)req->psz; i++) {
+			printf("      <option ");
+			if (strcmp(req->q.manpath, req->p[i]) == 0)
+				printf("selected=\"selected\" ");
+			printf("value=\"");
+			html_print(req->p[i]);
+			printf("\">");
+			html_print(req->p[i]);
+			puts("</option>");
+		}
+		puts("    </select>");
+	}
+
+	puts("  </fieldset>\n"
+	     "</form>");
+}
+
+static int
+validate_urifrag(const char *frag)
+{
+
+	while ('\0' != *frag) {
+		if ( ! (isalnum((unsigned char)*frag) ||
+		    '-' == *frag || '.' == *frag ||
+		    '/' == *frag || '_' == *frag))
+			return 0;
+		frag++;
+	}
+	return 1;
+}
+
+static int
+validate_manpath(const struct req *req, const char* manpath)
+{
+	size_t	 i;
+
+	for (i = 0; i < req->psz; i++)
+		if ( ! strcmp(manpath, req->p[i]))
+			return 1;
+
+	return 0;
+}
+
+static int
+validate_filename(const char *file)
+{
+
+	if ('.' == file[0] && '/' == file[1])
+		file += 2;
+
+	return ! (strstr(file, "../") || strstr(file, "/..") ||
+	    (strncmp(file, "man", 3) && strncmp(file, "cat", 3)));
+}
+
+static void
+pg_index(const struct req *req)
+{
+
+	resp_begin_html(200, NULL, NULL);
+	resp_searchform(req, FOCUS_QUERY);
+	printf("<p>\n"
+	       "This web interface is documented in the\n"
+	       "<a class=\"Xr\" href=\"/%s%sman.cgi.8\">man.cgi(8)</a>\n"
+	       "manual, and the\n"
+	       "<a class=\"Xr\" href=\"/%s%sapropos.1\">apropos(1)</a>\n"
+	       "manual explains the query syntax.\n"
+	       "</p>\n",
+	       scriptname, *scriptname == '\0' ? "" : "/",
+	       scriptname, *scriptname == '\0' ? "" : "/");
+	resp_end_html();
+}
+
+static void
+pg_noresult(const struct req *req, const char *msg)
+{
+	resp_begin_html(200, NULL, NULL);
+	resp_searchform(req, FOCUS_QUERY);
+	puts("<p>");
+	puts(msg);
+	puts("</p>");
+	resp_end_html();
+}
+
+static void
+pg_error_badrequest(const char *msg)
+{
+
+	resp_begin_html(400, "Bad Request", NULL);
+	puts("<h1>Bad Request</h1>\n"
+	     "<p>\n");
+	puts(msg);
+	printf("Try again from the\n"
+	       "<a href=\"/%s\">main page</a>.\n"
+	       "</p>", scriptname);
+	resp_end_html();
+}
+
+static void
+pg_error_internal(void)
+{
+	resp_begin_html(500, "Internal Server Error", NULL);
+	puts("<p>Internal Server Error</p>");
+	resp_end_html();
+}
+
+static void
+pg_redirect(const struct req *req, const char *name)
+{
+	printf("Status: 303 See Other\r\n"
+	    "Location: /");
+	if (*scriptname != '\0')
+		printf("%s/", scriptname);
+	if (strcmp(req->q.manpath, req->p[0]))
+		printf("%s/", req->q.manpath);
+	if (req->q.arch != NULL)
+		printf("%s/", req->q.arch);
+	printf("%s", name);
+	if (req->q.sec != NULL)
+		printf(".%s", req->q.sec);
+	printf("\r\nContent-Type: text/html; charset=utf-8\r\n\r\n");
+}
+
+static void
+pg_searchres(const struct req *req, struct manpage *r, size_t sz)
+{
+	char		*arch, *archend;
+	const char	*sec;
+	size_t		 i, iuse;
+	int		 archprio, archpriouse;
+	int		 prio, priouse;
+
+	for (i = 0; i < sz; i++) {
+		if (validate_filename(r[i].file))
+			continue;
+		warnx("invalid filename %s in %s database",
+		    r[i].file, req->q.manpath);
+		pg_error_internal();
+		return;
+	}
+
+	if (req->isquery && sz == 1) {
+		/*
+		 * If we have just one result, then jump there now
+		 * without any delay.
+		 */
+		printf("Status: 303 See Other\r\n"
+		    "Location: /");
+		if (*scriptname != '\0')
+			printf("%s/", scriptname);
+		if (strcmp(req->q.manpath, req->p[0]))
+			printf("%s/", req->q.manpath);
+		printf("%s\r\n"
+		    "Content-Type: text/html; charset=utf-8\r\n\r\n",
+		    r[0].file);
+		return;
+	}
+
+	/*
+	 * In man(1) mode, show one of the pages
+	 * even if more than one is found.
+	 */
+
+	iuse = 0;
+	if (req->q.equal || sz == 1) {
+		priouse = 20;
+		archpriouse = 3;
+		for (i = 0; i < sz; i++) {
+			sec = r[i].file;
+			sec += strcspn(sec, "123456789");
+			if (sec[0] == '\0')
+				continue;
+			prio = sec_prios[sec[0] - '1'];
+			if (sec[1] != '/')
+				prio += 10;
+			if (req->q.arch == NULL) {
+				archprio =
+				    ((arch = strchr(sec + 1, '/'))
+					== NULL) ? 3 :
+				    ((archend = strchr(arch + 1, '/'))
+					== NULL) ? 0 :
+				    strncmp(arch, "amd64/",
+					archend - arch) ? 2 : 1;
+				if (archprio < archpriouse) {
+					archpriouse = archprio;
+					priouse = prio;
+					iuse = i;
+					continue;
+				}
+				if (archprio > archpriouse)
+					continue;
+			}
+			if (prio >= priouse)
+				continue;
+			priouse = prio;
+			iuse = i;
+		}
+		resp_begin_html(200, NULL, r[iuse].file);
+	} else
+		resp_begin_html(200, NULL, NULL);
+
+	resp_searchform(req,
+	    req->q.equal || sz == 1 ? FOCUS_NONE : FOCUS_QUERY);
+
+	if (sz > 1) {
+		puts("<table class=\"results\">");
+		for (i = 0; i < sz; i++) {
+			printf("  <tr>\n"
+			       "    <td>"
+			       "<a class=\"Xr\" href=\"/");
+			if (*scriptname != '\0')
+				printf("%s/", scriptname);
+			if (strcmp(req->q.manpath, req->p[0]))
+				printf("%s/", req->q.manpath);
+			printf("%s\">", r[i].file);
+			html_print(r[i].names);
+			printf("</a></td>\n"
+			       "    <td><span class=\"Nd\">");
+			html_print(r[i].output);
+			puts("</span></td>\n"
+			     "  </tr>");
+		}
+		puts("</table>");
+	}
+
+	if (req->q.equal || sz == 1) {
+		puts("<hr>");
+		resp_show(req, r[iuse].file);
+	}
+
+	resp_end_html();
+}
+
+static void
+resp_catman(const struct req *req, const char *file)
+{
+	FILE		*f;
+	char		*p;
+	size_t		 sz;
+	ssize_t		 len;
+	int		 i;
+	int		 italic, bold;
+
+	if ((f = fopen(file, "r")) == NULL) {
+		puts("<p>You specified an invalid manual file.</p>");
+		return;
+	}
+
+	puts("<div class=\"catman\">\n"
+	     "<pre>");
+
+	p = NULL;
+	sz = 0;
+
+	while ((len = getline(&p, &sz, f)) != -1) {
+		bold = italic = 0;
+		for (i = 0; i < len - 1; i++) {
+			/*
+			 * This means that the catpage is out of state.
+			 * Ignore it and keep going (although the
+			 * catpage is bogus).
+			 */
+
+			if ('\b' == p[i] || '\n' == p[i])
+				continue;
+
+			/*
+			 * Print a regular character.
+			 * Close out any bold/italic scopes.
+			 * If we're in back-space mode, make sure we'll
+			 * have something to enter when we backspace.
+			 */
+
+			if ('\b' != p[i + 1]) {
+				if (italic)
+					printf("</i>");
+				if (bold)
+					printf("</b>");
+				italic = bold = 0;
+				html_putchar(p[i]);
+				continue;
+			} else if (i + 2 >= len)
+				continue;
+
+			/* Italic mode. */
+
+			if ('_' == p[i]) {
+				if (bold)
+					printf("</b>");
+				if ( ! italic)
+					printf("<i>");
+				bold = 0;
+				italic = 1;
+				i += 2;
+				html_putchar(p[i]);
+				continue;
+			}
+
+			/*
+			 * Handle funny behaviour troff-isms.
+			 * These grok'd from the original man2html.c.
+			 */
+
+			if (('+' == p[i] && 'o' == p[i + 2]) ||
+					('o' == p[i] && '+' == p[i + 2]) ||
+					('|' == p[i] && '=' == p[i + 2]) ||
+					('=' == p[i] && '|' == p[i + 2]) ||
+					('*' == p[i] && '=' == p[i + 2]) ||
+					('=' == p[i] && '*' == p[i + 2]) ||
+					('*' == p[i] && '|' == p[i + 2]) ||
+					('|' == p[i] && '*' == p[i + 2]))  {
+				if (italic)
+					printf("</i>");
+				if (bold)
+					printf("</b>");
+				italic = bold = 0;
+				putchar('*');
+				i += 2;
+				continue;
+			} else if (('|' == p[i] && '-' == p[i + 2]) ||
+					('-' == p[i] && '|' == p[i + 1]) ||
+					('+' == p[i] && '-' == p[i + 1]) ||
+					('-' == p[i] && '+' == p[i + 1]) ||
+					('+' == p[i] && '|' == p[i + 1]) ||
+					('|' == p[i] && '+' == p[i + 1]))  {
+				if (italic)
+					printf("</i>");
+				if (bold)
+					printf("</b>");
+				italic = bold = 0;
+				putchar('+');
+				i += 2;
+				continue;
+			}
+
+			/* Bold mode. */
+
+			if (italic)
+				printf("</i>");
+			if ( ! bold)
+				printf("<b>");
+			bold = 1;
+			italic = 0;
+			i += 2;
+			html_putchar(p[i]);
+		}
+
+		/*
+		 * Clean up the last character.
+		 * We can get to a newline; don't print that.
+		 */
+
+		if (italic)
+			printf("</i>");
+		if (bold)
+			printf("</b>");
+
+		if (i == len - 1 && p[i] != '\n')
+			html_putchar(p[i]);
+
+		putchar('\n');
+	}
+	free(p);
+
+	puts("</pre>\n"
+	     "</div>");
+
+	fclose(f);
+}
+
+static void
+resp_format(const struct req *req, const char *file)
+{
+	struct manoutput conf;
+	struct mparse	*mp;
+	struct roff_man	*man;
+	void		*vp;
+	int		 fd;
+	int		 usepath;
+
+	if (-1 == (fd = open(file, O_RDONLY, 0))) {
+		puts("<p>You specified an invalid manual file.</p>");
+		return;
+	}
+
+	mchars_alloc();
+	mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1,
+	    MANDOCERR_MAX, NULL, MANDOC_OS_OTHER, req->q.manpath);
+	mparse_readfd(mp, fd, file);
+	close(fd);
+
+	memset(&conf, 0, sizeof(conf));
+	conf.fragment = 1;
+	conf.style = mandoc_strdup(CSS_DIR "/mandoc.css");
+	usepath = strcmp(req->q.manpath, req->p[0]);
+	mandoc_asprintf(&conf.man, "/%s%s%s%s%%N.%%S",
+	    scriptname, *scriptname == '\0' ? "" : "/",
+	    usepath ? req->q.manpath : "", usepath ? "/" : "");
+
+	mparse_result(mp, &man, NULL);
+	if (man == NULL) {
+		warnx("fatal mandoc error: %s/%s", req->q.manpath, file);
+		pg_error_internal();
+		mparse_free(mp);
+		mchars_free();
+		return;
+	}
+
+	vp = html_alloc(&conf);
+
+	if (man->macroset == MACROSET_MDOC) {
+		mdoc_validate(man);
+		html_mdoc(vp, man);
+	} else {
+		man_validate(man);
+		html_man(vp, man);
+	}
+
+	html_free(vp);
+	mparse_free(mp);
+	mchars_free();
+	free(conf.man);
+	free(conf.style);
+}
+
+static void
+resp_show(const struct req *req, const char *file)
+{
+
+	if ('.' == file[0] && '/' == file[1])
+		file += 2;
+
+	if ('c' == *file)
+		resp_catman(req, file);
+	else
+		resp_format(req, file);
+}
+
+static void
+pg_show(struct req *req, const char *fullpath)
+{
+	char		*manpath;
+	const char	*file;
+
+	if ((file = strchr(fullpath, '/')) == NULL) {
+		pg_error_badrequest(
+		    "You did not specify a page to show.");
+		return;
+	}
+	manpath = mandoc_strndup(fullpath, file - fullpath);
+	file++;
+
+	if ( ! validate_manpath(req, manpath)) {
+		pg_error_badrequest(
+		    "You specified an invalid manpath.");
+		free(manpath);
+		return;
+	}
+
+	/*
+	 * Begin by chdir()ing into the manpath.
+	 * This way we can pick up the database files, which are
+	 * relative to the manpath root.
+	 */
+
+	if (chdir(manpath) == -1) {
+		warn("chdir %s", manpath);
+		pg_error_internal();
+		free(manpath);
+		return;
+	}
+	free(manpath);
+
+	if ( ! validate_filename(file)) {
+		pg_error_badrequest(
+		    "You specified an invalid manual file.");
+		return;
+	}
+
+	resp_begin_html(200, NULL, file);
+	resp_searchform(req, FOCUS_NONE);
+	resp_show(req, file);
+	resp_end_html();
+}
+
+static void
+pg_search(const struct req *req)
+{
+	struct mansearch	  search;
+	struct manpaths		  paths;
+	struct manpage		 *res;
+	char			**argv;
+	char			 *query, *rp, *wp;
+	size_t			  ressz;
+	int			  argc;
+
+	/*
+	 * Begin by chdir()ing into the root of the manpath.
+	 * This way we can pick up the database files, which are
+	 * relative to the manpath root.
+	 */
+
+	if (chdir(req->q.manpath) == -1) {
+		warn("chdir %s", req->q.manpath);
+		pg_error_internal();
+		return;
+	}
+
+	search.arch = req->q.arch;
+	search.sec = req->q.sec;
+	search.outkey = "Nd";
+	search.argmode = req->q.equal ? ARG_NAME : ARG_EXPR;
+	search.firstmatch = 1;
+
+	paths.sz = 1;
+	paths.paths = mandoc_malloc(sizeof(char *));
+	paths.paths[0] = mandoc_strdup(".");
+
+	/*
+	 * Break apart at spaces with backslash-escaping.
+	 */
+
+	argc = 0;
+	argv = NULL;
+	rp = query = mandoc_strdup(req->q.query);
+	for (;;) {
+		while (isspace((unsigned char)*rp))
+			rp++;
+		if (*rp == '\0')
+			break;
+		argv = mandoc_reallocarray(argv, argc + 1, sizeof(char *));
+		argv[argc++] = wp = rp;
+		for (;;) {
+			if (isspace((unsigned char)*rp)) {
+				*wp = '\0';
+				rp++;
+				break;
+			}
+			if (rp[0] == '\\' && rp[1] != '\0')
+				rp++;
+			if (wp != rp)
+				*wp = *rp;
+			if (*rp == '\0')
+				break;
+			wp++;
+			rp++;
+		}
+	}
+
+	res = NULL;
+	ressz = 0;
+	if (req->isquery && req->q.equal && argc == 1)
+		pg_redirect(req, argv[0]);
+	else if (mansearch(&search, &paths, argc, argv, &res, &ressz) == 0)
+		pg_noresult(req, "You entered an invalid query.");
+	else if (ressz == 0)
+		pg_noresult(req, "No results found.");
+	else
+		pg_searchres(req, res, ressz);
+
+	free(query);
+	mansearch_free(res, ressz);
+	free(paths.paths[0]);
+	free(paths.paths);
+}
+
+int
+main(void)
+{
+	struct req	 req;
+	struct itimerval itimer;
+	const char	*path;
+	const char	*querystring;
+	int		 i;
+
+#if HAVE_PLEDGE
+	/*
+	 * The "rpath" pledge could be revoked after mparse_readfd()
+	 * if the file desciptor to "/footer.html" would be opened
+	 * up front, but it's probably not worth the complication
+	 * of the code it would cause: it would require scattering
+	 * pledge() calls in multiple low-level resp_*() functions.
+	 */
+
+	if (pledge("stdio rpath", NULL) == -1) {
+		warn("pledge");
+		pg_error_internal();
+		return EXIT_FAILURE;
+	}
+#endif
+
+	/* Poor man's ReDoS mitigation. */
+
+	itimer.it_value.tv_sec = 2;
+	itimer.it_value.tv_usec = 0;
+	itimer.it_interval.tv_sec = 2;
+	itimer.it_interval.tv_usec = 0;
+	if (setitimer(ITIMER_VIRTUAL, &itimer, NULL) == -1) {
+		warn("setitimer");
+		pg_error_internal();
+		return EXIT_FAILURE;
+	}
+
+	/*
+	 * First we change directory into the MAN_DIR so that
+	 * subsequent scanning for manpath directories is rooted
+	 * relative to the same position.
+	 */
+
+	if (chdir(MAN_DIR) == -1) {
+		warn("MAN_DIR: %s", MAN_DIR);
+		pg_error_internal();
+		return EXIT_FAILURE;
+	}
+
+	memset(&req, 0, sizeof(struct req));
+	req.q.equal = 1;
+	parse_manpath_conf(&req);
+
+	/* Parse the path info and the query string. */
+
+	if ((path = getenv("PATH_INFO")) == NULL)
+		path = "";
+	else if (*path == '/')
+		path++;
+
+	if (*path != '\0') {
+		parse_path_info(&req, path);
+		if (req.q.manpath == NULL || req.q.sec == NULL ||
+		    *req.q.query == '\0' || access(path, F_OK) == -1)
+			path = "";
+	} else if ((querystring = getenv("QUERY_STRING")) != NULL)
+		parse_query_string(&req, querystring);
+
+	/* Validate parsed data and add defaults. */
+
+	if (req.q.manpath == NULL)
+		req.q.manpath = mandoc_strdup(req.p[0]);
+	else if ( ! validate_manpath(&req, req.q.manpath)) {
+		pg_error_badrequest(
+		    "You specified an invalid manpath.");
+		return EXIT_FAILURE;
+	}
+
+	if ( ! (NULL == req.q.arch || validate_urifrag(req.q.arch))) {
+		pg_error_badrequest(
+		    "You specified an invalid architecture.");
+		return EXIT_FAILURE;
+	}
+
+	/* Dispatch to the three different pages. */
+
+	if ('\0' != *path)
+		pg_show(&req, path);
+	else if (NULL != req.q.query)
+		pg_search(&req);
+	else
+		pg_index(&req);
+
+	free(req.q.manpath);
+	free(req.q.arch);
+	free(req.q.sec);
+	free(req.q.query);
+	for (i = 0; i < (int)req.psz; i++)
+		free(req.p[i]);
+	free(req.p);
+	return EXIT_SUCCESS;
+}
+
+/*
+ * If PATH_INFO is not a file name, translate it to a query.
+ */
+static void
+parse_path_info(struct req *req, const char *path)
+{
+	char	*dir[4];
+	int	 i;
+
+	req->isquery = 0;
+	req->q.equal = 1;
+	req->q.manpath = mandoc_strdup(path);
+	req->q.arch = NULL;
+
+	/* Mandatory manual page name. */
+	if ((req->q.query = strrchr(req->q.manpath, '/')) == NULL) {
+		req->q.query = req->q.manpath;
+		req->q.manpath = NULL;
+	} else
+		*req->q.query++ = '\0';
+
+	/* Optional trailing section. */
+	if ((req->q.sec = strrchr(req->q.query, '.')) != NULL) {
+		if(isdigit((unsigned char)req->q.sec[1])) {
+			*req->q.sec++ = '\0';
+			req->q.sec = mandoc_strdup(req->q.sec);
+		} else
+			req->q.sec = NULL;
+	}
+
+	/* Handle the case of name[.section] only. */
+	if (req->q.manpath == NULL)
+		return;
+	req->q.query = mandoc_strdup(req->q.query);
+
+	/* Split directory components. */
+	dir[i = 0] = req->q.manpath;
+	while ((dir[i + 1] = strchr(dir[i], '/')) != NULL) {
+		if (++i == 3) {
+			pg_error_badrequest(
+			    "You specified too many directory components.");
+			exit(EXIT_FAILURE);
+		}
+		*dir[i]++ = '\0';
+	}
+
+	/* Optional manpath. */
+	if ((i = validate_manpath(req, req->q.manpath)) == 0)
+		req->q.manpath = NULL;
+	else if (dir[1] == NULL)
+		return;
+
+	/* Optional section. */
+	if (strncmp(dir[i], "man", 3) == 0) {
+		free(req->q.sec);
+		req->q.sec = mandoc_strdup(dir[i++] + 3);
+	}
+	if (dir[i] == NULL) {
+		if (req->q.manpath == NULL)
+			free(dir[0]);
+		return;
+	}
+	if (dir[i + 1] != NULL) {
+		pg_error_badrequest(
+		    "You specified an invalid directory component.");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Optional architecture. */
+	if (i) {
+		req->q.arch = mandoc_strdup(dir[i]);
+		if (req->q.manpath == NULL)
+			free(dir[0]);
+	} else
+		req->q.arch = dir[0];
+}
+
+/*
+ * Scan for indexable paths.
+ */
+static void
+parse_manpath_conf(struct req *req)
+{
+	FILE	*fp;
+	char	*dp;
+	size_t	 dpsz;
+	ssize_t	 len;
+
+	if ((fp = fopen("manpath.conf", "r")) == NULL) {
+		warn("%s/manpath.conf", MAN_DIR);
+		pg_error_internal();
+		exit(EXIT_FAILURE);
+	}
+
+	dp = NULL;
+	dpsz = 0;
+
+	while ((len = getline(&dp, &dpsz, fp)) != -1) {
+		if (dp[len - 1] == '\n')
+			dp[--len] = '\0';
+		req->p = mandoc_realloc(req->p,
+		    (req->psz + 1) * sizeof(char *));
+		if ( ! validate_urifrag(dp)) {
+			warnx("%s/manpath.conf contains "
+			    "unsafe path \"%s\"", MAN_DIR, dp);
+			pg_error_internal();
+			exit(EXIT_FAILURE);
+		}
+		if (strchr(dp, '/') != NULL) {
+			warnx("%s/manpath.conf contains "
+			    "path with slash \"%s\"", MAN_DIR, dp);
+			pg_error_internal();
+			exit(EXIT_FAILURE);
+		}
+		req->p[req->psz++] = dp;
+		dp = NULL;
+		dpsz = 0;
+	}
+	free(dp);
+
+	if (req->p == NULL) {
+		warnx("%s/manpath.conf is empty", MAN_DIR);
+		pg_error_internal();
+		exit(EXIT_FAILURE);
+	}
+}

Added: vendor/mandoc/dist/cgi.h.example
===================================================================
--- vendor/mandoc/dist/cgi.h.example	                        (rev 0)
+++ vendor/mandoc/dist/cgi.h.example	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+/* Example compile-time configuration file for man.cgi(8). */
+
+#define	SCRIPT_NAME "cgi-bin/man.cgi"
+#define	MAN_DIR "/man"
+#define	CSS_DIR ""
+#define	CUSTOMIZE_TITLE "Manual pages with mandoc"
+#define	COMPAT_OLDURI Yes

Added: vendor/mandoc/dist/chars.c
===================================================================
--- vendor/mandoc/dist/chars.c	                        (rev 0)
+++ vendor/mandoc/dist/chars.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,511 @@
+/*	$Id: chars.c,v 1.71 2017/06/14 20:57:07 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "libmandoc.h"
+
+struct	ln {
+	const char	  roffcode[16];
+	const char	 *ascii;
+	int		  unicode;
+};
+
+/* Special break control characters. */
+static const char ascii_nbrsp[2] = { ASCII_NBRSP, '\0' };
+static const char ascii_break[2] = { ASCII_BREAK, '\0' };
+
+static struct ln lines[] = {
+
+	/* Spacing. */
+	{ " ",			ascii_nbrsp,	0x00a0	},
+	{ "~",			ascii_nbrsp,	0x00a0	},
+	{ "0",			" ",		0x2002	},
+	{ "|",			"",		0	},
+	{ "^",			"",		0	},
+	{ "&",			"",		0	},
+	{ "%",			"",		0	},
+	{ ":",			ascii_break,	0	},
+	/* XXX The following three do not really belong here. */
+	{ "t",			"",		0	},
+	{ "c",			"",		0	},
+	{ "}",			"",		0	},
+
+	/* Lines. */
+	{ "ba",			"|",		0x007c	},
+	{ "br",			"|",		0x2502	},
+	{ "ul",			"_",		0x005f	},
+	{ "ru",			"_",		0x005f	},
+	{ "rn",			"-",		0x203e	},
+	{ "bb",			"|",		0x00a6	},
+	{ "sl",			"/",		0x002f	},
+	{ "rs",			"\\",		0x005c	},
+
+	/* Text markers. */
+	{ "ci",			"O",		0x25cb	},
+	{ "bu",			"+\bo",		0x2022	},
+	{ "dd",			"|\b=",		0x2021	},
+	{ "dg",			"|\b-",		0x2020	},
+	{ "lz",			"<>",		0x25ca	},
+	{ "sq",			"[]",		0x25a1	},
+	{ "ps",			"<par>",	0x00b6	},
+	{ "sc",			"<sec>",	0x00a7	},
+	{ "lh",			"<=",		0x261c	},
+	{ "rh",			"=>",		0x261e	},
+	{ "at",			"@",		0x0040	},
+	{ "sh",			"#",		0x0023	},
+	{ "CR",			"_|",		0x21b5	},
+	{ "OK",			"\\/",		0x2713	},
+	{ "CL",			"<club>",	0x2663	},
+	{ "SP",			"<spade>",	0x2660	},
+	{ "HE",			"<heart>",	0x2665	},
+	{ "DI",			"<diamond>",	0x2666	},
+
+	/* Legal symbols. */
+	{ "co",			"(C)",		0x00a9	},
+	{ "rg",			"(R)",		0x00ae	},
+	{ "tm",			"tm",		0x2122	},
+
+	/* Punctuation. */
+	{ "em",			"--",		0x2014	},
+	{ "en",			"-",		0x2013	},
+	{ "hy",			"-",		0x2010	},
+	{ "e",			"\\",		0x005c	},
+	{ ".",			".",		0x002e	},
+	{ "r!",			"!",		0x00a1	},
+	{ "r?",			"?",		0x00bf	},
+
+	/* Quotes. */
+	{ "Bq",			",,",		0x201e	},
+	{ "bq",			",",		0x201a	},
+	{ "lq",			"\"",		0x201c	},
+	{ "rq",			"\"",		0x201d	},
+	{ "Lq",			"\"",		0x201c	},
+	{ "Rq",			"\"",		0x201d	},
+	{ "oq",			"`",		0x2018	},
+	{ "cq",			"\'",		0x2019	},
+	{ "aq",			"\'",		0x0027	},
+	{ "dq",			"\"",		0x0022	},
+	{ "Fo",			"<<",		0x00ab	},
+	{ "Fc",			">>",		0x00bb	},
+	{ "fo",			"<",		0x2039	},
+	{ "fc",			">",		0x203a	},
+
+	/* Brackets. */
+	{ "lB",			"[",		0x005b	},
+	{ "rB",			"]",		0x005d	},
+	{ "lC",			"{",		0x007b	},
+	{ "rC",			"}",		0x007d	},
+	{ "la",			"<",		0x27e8	},
+	{ "ra",			">",		0x27e9	},
+	{ "bv",			"|",		0x23aa	},
+	{ "braceex",		"|",		0x23aa	},
+	{ "bracketlefttp",	"|",		0x23a1	},
+	{ "bracketleftbt",	"|",		0x23a3	},
+	{ "bracketleftex",	"|",		0x23a2	},
+	{ "bracketrighttp",	"|",		0x23a4	},
+	{ "bracketrightbt",	"|",		0x23a6	},
+	{ "bracketrightex",	"|",		0x23a5	},
+	{ "lt",			",-",		0x23a7	},
+	{ "bracelefttp",	",-",		0x23a7	},
+	{ "lk",			"{",		0x23a8	},
+	{ "braceleftmid",	"{",		0x23a8	},
+	{ "lb",			"`-",		0x23a9	},
+	{ "braceleftbt",	"`-",		0x23a9	},
+	{ "braceleftex",	"|",		0x23aa	},
+	{ "rt",			"-.",		0x23ab	},
+	{ "bracerighttp",	"-.",		0x23ab	},
+	{ "rk",			"}",		0x23ac	},
+	{ "bracerightmid",	"}",		0x23ac	},
+	{ "rb",			"-\'",		0x23ad	},
+	{ "bracerightbt",	"-\'",		0x23ad	},
+	{ "bracerightex",	"|",		0x23aa	},
+	{ "parenlefttp",	"/",		0x239b	},
+	{ "parenleftbt",	"\\",		0x239d	},
+	{ "parenleftex",	"|",		0x239c	},
+	{ "parenrighttp",	"\\",		0x239e	},
+	{ "parenrightbt",	"/",		0x23a0	},
+	{ "parenrightex",	"|",		0x239f	},
+
+	/* Arrows and lines. */
+	{ "<-",			"<-",		0x2190	},
+	{ "->",			"->",		0x2192	},
+	{ "<>",			"<->",		0x2194	},
+	{ "da",			"|\bv",		0x2193	},
+	{ "ua",			"|\b^",		0x2191	},
+	{ "va",			"^v",		0x2195	},
+	{ "lA",			"<=",		0x21d0	},
+	{ "rA",			"=>",		0x21d2	},
+	{ "hA",			"<=>",		0x21d4	},
+	{ "uA",			"=\b^",		0x21d1	},
+	{ "dA",			"=\bv",		0x21d3	},
+	{ "vA",			"^=v",		0x21d5	},
+	{ "an",			"-",		0x23af	},
+
+	/* Logic. */
+	{ "AN",			"^",		0x2227	},
+	{ "OR",			"v",		0x2228	},
+	{ "no",			"~",		0x00ac	},
+	{ "tno",		"~",		0x00ac	},
+	{ "te",			"3",		0x2203	},
+	{ "fa",			"-\bV",		0x2200	},
+	{ "st",			"-)",		0x220b	},
+	{ "tf",			".:.",		0x2234	},
+	{ "3d",			".:.",		0x2234	},
+	{ "or",			"|",		0x007c	},
+
+	/* Mathematicals. */
+	{ "pl",			"+",		0x002b	},
+	{ "mi",			"-",		0x2212	},
+	{ "-",			"-",		0x002d	},
+	{ "-+",			"-+",		0x2213	},
+	{ "+-",			"+-",		0x00b1	},
+	{ "t+-",		"+-",		0x00b1	},
+	{ "pc",			".",		0x00b7	},
+	{ "md",			".",		0x22c5	},
+	{ "mu",			"x",		0x00d7	},
+	{ "tmu",		"x",		0x00d7	},
+	{ "c*",			"O\bx",		0x2297	},
+	{ "c+",			"O\b+",		0x2295	},
+	{ "di",			"-:-",		0x00f7	},
+	{ "tdi",		"-:-",		0x00f7	},
+	{ "f/",			"/",		0x2044	},
+	{ "**",			"*",		0x2217	},
+	{ "<=",			"<=",		0x2264	},
+	{ ">=",			">=",		0x2265	},
+	{ "<<",			"<<",		0x226a	},
+	{ ">>",			">>",		0x226b	},
+	{ "eq",			"=",		0x003d	},
+	{ "!=",			"!=",		0x2260	},
+	{ "==",			"==",		0x2261	},
+	{ "ne",			"!==",		0x2262	},
+	{ "ap",			"~",		0x223c	},
+	{ "|=",			"-~",		0x2243	},
+	{ "=~",			"=~",		0x2245	},
+	{ "~~",			"~~",		0x2248	},
+	{ "~=",			"~=",		0x2248	},
+	{ "pt",			"oc",		0x221d	},
+	{ "es",			"{}",		0x2205	},
+	{ "mo",			"E",		0x2208	},
+	{ "nm",			"!E",		0x2209	},
+	{ "sb",			"(=",		0x2282	},
+	{ "nb",			"(!=",		0x2284	},
+	{ "sp",			"=)",		0x2283	},
+	{ "nc",			"!=)",		0x2285	},
+	{ "ib",			"(=\b_",	0x2286	},
+	{ "ip",			"=\b_)",	0x2287	},
+	{ "ca",			"(^)",		0x2229	},
+	{ "cu",			"U",		0x222a	},
+	{ "/_",			"_\b/",		0x2220	},
+	{ "pp",			"_\b|",		0x22a5	},
+	{ "is",			"'\b,\bI",	0x222b	},
+	{ "integral",		"'\b,\bI",	0x222b	},
+	{ "sum",		"E",		0x2211	},
+	{ "product",		"TT",		0x220f	},
+	{ "coproduct",		"U",		0x2210	},
+	{ "gr",			"V",		0x2207	},
+	{ "sr",			"\\/",		0x221a	},
+	{ "sqrt",		"\\/",		0x221a	},
+	{ "lc",			"|~",		0x2308	},
+	{ "rc",			"~|",		0x2309	},
+	{ "lf",			"|_",		0x230a	},
+	{ "rf",			"_|",		0x230b	},
+	{ "if",			"oo",		0x221e	},
+	{ "Ah",			"N",		0x2135	},
+	{ "Im",			"I",		0x2111	},
+	{ "Re",			"R",		0x211c	},
+	{ "wp",			"P",		0x2118	},
+	{ "pd",			"a",		0x2202	},
+	{ "-h",			"/h",		0x210f	},
+	{ "hbar",		"/h",		0x210f	},
+	{ "12",			"1/2",		0x00bd	},
+	{ "14",			"1/4",		0x00bc	},
+	{ "34",			"3/4",		0x00be	},
+	{ "18",			"1/8",		0x215B	},
+	{ "38",			"3/8",		0x215C	},
+	{ "58",			"5/8",		0x215D	},
+	{ "78",			"7/8",		0x215E	},
+	{ "S1",			"1",		0x00B9	},
+	{ "S2",			"2",		0x00B2	},
+	{ "S3",			"3",		0x00B3	},
+
+	/* Ligatures. */
+	{ "ff",			"ff",		0xfb00	},
+	{ "fi",			"fi",		0xfb01	},
+	{ "fl",			"fl",		0xfb02	},
+	{ "Fi",			"ffi",		0xfb03	},
+	{ "Fl",			"ffl",		0xfb04	},
+	{ "AE",			"AE",		0x00c6	},
+	{ "ae",			"ae",		0x00e6	},
+	{ "OE",			"OE",		0x0152	},
+	{ "oe",			"oe",		0x0153	},
+	{ "ss",			"ss",		0x00df	},
+	{ "IJ",			"IJ",		0x0132	},
+	{ "ij",			"ij",		0x0133	},
+
+	/* Accents. */
+	{ "a\"",		"\"",		0x02dd	},
+	{ "a-",			"-",		0x00af	},
+	{ "a.",			".",		0x02d9	},
+	{ "a^",			"^",		0x005e	},
+	{ "aa",			"\'",		0x00b4	},
+	{ "\'",			"\'",		0x00b4	},
+	{ "ga",			"`",		0x0060	},
+	{ "`",			"`",		0x0060	},
+	{ "ab",			"'\b`",		0x02d8	},
+	{ "ac",			",",		0x00b8	},
+	{ "ad",			"\"",		0x00a8	},
+	{ "ah",			"v",		0x02c7	},
+	{ "ao",			"o",		0x02da	},
+	{ "a~",			"~",		0x007e	},
+	{ "ho",			",",		0x02db	},
+	{ "ha",			"^",		0x005e	},
+	{ "ti",			"~",		0x007e	},
+
+	/* Accented letters. */
+	{ "'A",			"'\bA",		0x00c1	},
+	{ "'E",			"'\bE",		0x00c9	},
+	{ "'I",			"'\bI",		0x00cd	},
+	{ "'O",			"'\bO",		0x00d3	},
+	{ "'U",			"'\bU",		0x00da	},
+	{ "'a",			"'\ba",		0x00e1	},
+	{ "'e",			"'\be",		0x00e9	},
+	{ "'i",			"'\bi",		0x00ed	},
+	{ "'o",			"'\bo",		0x00f3	},
+	{ "'u",			"'\bu",		0x00fa	},
+	{ "`A",			"`\bA",		0x00c0	},
+	{ "`E",			"`\bE",		0x00c8	},
+	{ "`I",			"`\bI",		0x00cc	},
+	{ "`O",			"`\bO",		0x00d2	},
+	{ "`U",			"`\bU",		0x00d9	},
+	{ "`a",			"`\ba",		0x00e0	},
+	{ "`e",			"`\be",		0x00e8	},
+	{ "`i",			"`\bi",		0x00ec	},
+	{ "`o",			"`\bo",		0x00f2	},
+	{ "`u",			"`\bu",		0x00f9	},
+	{ "~A",			"~\bA",		0x00c3	},
+	{ "~N",			"~\bN",		0x00d1	},
+	{ "~O",			"~\bO",		0x00d5	},
+	{ "~a",			"~\ba",		0x00e3	},
+	{ "~n",			"~\bn",		0x00f1	},
+	{ "~o",			"~\bo",		0x00f5	},
+	{ ":A",			"\"\bA",	0x00c4	},
+	{ ":E",			"\"\bE",	0x00cb	},
+	{ ":I",			"\"\bI",	0x00cf	},
+	{ ":O",			"\"\bO",	0x00d6	},
+	{ ":U",			"\"\bU",	0x00dc	},
+	{ ":a",			"\"\ba",	0x00e4	},
+	{ ":e",			"\"\be",	0x00eb	},
+	{ ":i",			"\"\bi",	0x00ef	},
+	{ ":o",			"\"\bo",	0x00f6	},
+	{ ":u",			"\"\bu",	0x00fc	},
+	{ ":y",			"\"\by",	0x00ff	},
+	{ "^A",			"^\bA",		0x00c2	},
+	{ "^E",			"^\bE",		0x00ca	},
+	{ "^I",			"^\bI",		0x00ce	},
+	{ "^O",			"^\bO",		0x00d4	},
+	{ "^U",			"^\bU",		0x00db	},
+	{ "^a",			"^\ba",		0x00e2	},
+	{ "^e",			"^\be",		0x00ea	},
+	{ "^i",			"^\bi",		0x00ee	},
+	{ "^o",			"^\bo",		0x00f4	},
+	{ "^u",			"^\bu",		0x00fb	},
+	{ ",C",			",\bC",		0x00c7	},
+	{ ",c",			",\bc",		0x00e7	},
+	{ "/L",			"/\bL",		0x0141	},
+	{ "/l",			"/\bl",		0x0142	},
+	{ "/O",			"/\bO",		0x00d8	},
+	{ "/o",			"/\bo",		0x00f8	},
+	{ "oA",			"o\bA",		0x00c5	},
+	{ "oa",			"o\ba",		0x00e5	},
+
+	/* Special letters. */
+	{ "-D",			"-\bD",		0x00d0	},
+	{ "Sd",			"d",		0x00f0	},
+	{ "TP",			"Th",		0x00de	},
+	{ "Tp",			"th",		0x00fe	},
+	{ ".i",			"i",		0x0131	},
+	{ ".j",			"j",		0x0237	},
+
+	/* Currency. */
+	{ "Do",			"$",		0x0024	},
+	{ "ct",			"/\bc",		0x00a2	},
+	{ "Eu",			"EUR",		0x20ac	},
+	{ "eu",			"EUR",		0x20ac	},
+	{ "Ye",			"=\bY",		0x00a5	},
+	{ "Po",			"GBP",		0x00a3	},
+	{ "Cs",			"o\bx",		0x00a4	},
+	{ "Fn",			",\bf",		0x0192	},
+
+	/* Units. */
+	{ "de",			"<deg>",	0x00b0	},
+	{ "%0",			"%o",		0x2030	},
+	{ "fm",			"\'",		0x2032	},
+	{ "sd",			"''",		0x2033	},
+	{ "mc",			",\bu",		0x00b5	},
+	{ "Of",			"_\ba",		0x00aa	},
+	{ "Om",			"_\bo",		0x00ba	},
+
+	/* Greek characters. */
+	{ "*A",			"A",		0x0391	},
+	{ "*B",			"B",		0x0392	},
+	{ "*G",			"G",		0x0393	},
+	{ "*D",			"_\b/_\b\\",	0x0394	},
+	{ "*E",			"E",		0x0395	},
+	{ "*Z",			"Z",		0x0396	},
+	{ "*Y",			"H",		0x0397	},
+	{ "*H",			"-\bO",		0x0398	},
+	{ "*I",			"I",		0x0399	},
+	{ "*K",			"K",		0x039a	},
+	{ "*L",			"/\\",		0x039b	},
+	{ "*M",			"M",		0x039c	},
+	{ "*N",			"N",		0x039d	},
+	{ "*C",			"_\bH",		0x039e	},
+	{ "*O",			"O",		0x039f	},
+	{ "*P",			"TT",		0x03a0	},
+	{ "*R",			"P",		0x03a1	},
+	{ "*S",			"S",		0x03a3	},
+	{ "*T",			"T",		0x03a4	},
+	{ "*U",			"Y",		0x03a5	},
+	{ "*F",			"I\bO",		0x03a6	},
+	{ "*X",			"X",		0x03a7	},
+	{ "*Q",			"I\bY",		0x03a8	},
+	{ "*W",			"_\bO",		0x03a9	},
+	{ "*a",			"a",		0x03b1	},
+	{ "*b",			"B",		0x03b2	},
+	{ "*g",			"y",		0x03b3	},
+	{ "*d",			"d",		0x03b4	},
+	{ "*e",			"e",		0x03b5	},
+	{ "*z",			",\bC",		0x03b6	},
+	{ "*y",			"n",		0x03b7	},
+	{ "*h",			"-\b0",		0x03b8	},
+	{ "*i",			"i",		0x03b9	},
+	{ "*k",			"k",		0x03ba	},
+	{ "*l",			">\b\\",	0x03bb	},
+	{ "*m",			",\bu",		0x03bc	},
+	{ "*n",			"v",		0x03bd	},
+	{ "*c",			",\bE",		0x03be	},
+	{ "*o",			"o",		0x03bf	},
+	{ "*p",			"-\bn",		0x03c0	},
+	{ "*r",			"p",		0x03c1	},
+	{ "*s",			"-\bo",		0x03c3	},
+	{ "*t",			"~\bt",		0x03c4	},
+	{ "*u",			"u",		0x03c5	},
+	{ "*f",			"|\bo",		0x03d5	},
+	{ "*x",			"x",		0x03c7	},
+	{ "*q",			"|\bu",		0x03c8	},
+	{ "*w",			"w",		0x03c9	},
+	{ "+h",			"-\b0",		0x03d1	},
+	{ "+f",			"|\bo",		0x03c6	},
+	{ "+p",			"-\bw",		0x03d6	},
+	{ "+e",			"e",		0x03f5	},
+	{ "ts",			"s",		0x03c2	},
+};
+
+static	struct ohash	  mchars;
+
+
+void
+mchars_free(void)
+{
+
+	ohash_delete(&mchars);
+}
+
+void
+mchars_alloc(void)
+{
+	size_t		  i;
+	unsigned int	  slot;
+
+	mandoc_ohash_init(&mchars, 9, offsetof(struct ln, roffcode));
+	for (i = 0; i < sizeof(lines)/sizeof(lines[0]); i++) {
+		slot = ohash_qlookup(&mchars, lines[i].roffcode);
+		assert(ohash_find(&mchars, slot) == NULL);
+		ohash_insert(&mchars, slot, lines + i);
+	}
+}
+
+int
+mchars_spec2cp(const char *p, size_t sz)
+{
+	const struct ln	*ln;
+	const char	*end;
+
+	end = p + sz;
+	ln = ohash_find(&mchars, ohash_qlookupi(&mchars, p, &end));
+	return ln != NULL ? ln->unicode : sz == 1 ? (unsigned char)*p : -1;
+}
+
+int
+mchars_num2char(const char *p, size_t sz)
+{
+	int	  i;
+
+	i = mandoc_strntoi(p, sz, 10);
+	return i >= 0 && i < 256 ? i : -1;
+}
+
+int
+mchars_num2uc(const char *p, size_t sz)
+{
+	int	 i;
+
+	i = mandoc_strntoi(p, sz, 16);
+	assert(i >= 0 && i <= 0x10FFFF);
+	return i;
+}
+
+const char *
+mchars_spec2str(const char *p, size_t sz, size_t *rsz)
+{
+	const struct ln	*ln;
+	const char	*end;
+
+	end = p + sz;
+	ln = ohash_find(&mchars, ohash_qlookupi(&mchars, p, &end));
+	if (ln == NULL) {
+		*rsz = 1;
+		return sz == 1 ? p : NULL;
+	}
+
+	*rsz = strlen(ln->ascii);
+	return ln->ascii;
+}
+
+const char *
+mchars_uc2str(int uc)
+{
+	size_t	  i;
+
+	for (i = 0; i < sizeof(lines)/sizeof(lines[0]); i++)
+		if (uc == lines[i].unicode)
+			return lines[i].ascii;
+	return "<?>";
+}

Added: vendor/mandoc/dist/compat_err.c
===================================================================
--- vendor/mandoc/dist/compat_err.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_err.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,112 @@
+#include "config.h"
+
+#if HAVE_ERR
+
+int dummy;
+
+#else
+
+/* $Id: compat_err.c,v 1.4 2015/11/26 07:42:11 schwarze Exp $ */
+/*
+ * Copyright (c) 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void vwarni(const char *, va_list);
+static void vwarnxi(const char *, va_list);
+
+static void
+vwarnxi(const char *fmt, va_list ap)
+{
+	fprintf(stderr, "%s: ", getprogname());
+	if (fmt != NULL)
+		vfprintf(stderr, fmt, ap);
+}
+
+static void
+vwarni(const char *fmt, va_list ap)
+{
+	int sverrno;
+
+	sverrno = errno;
+	vwarnxi(fmt, ap);
+	if (fmt != NULL)
+		fputs(": ", stderr);
+	fprintf(stderr, "%s\n", strerror(sverrno));
+}
+
+void
+err(int eval, const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vwarni(fmt, ap);
+	va_end(ap);
+	exit(eval);
+}
+
+void
+errx(int eval, const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vwarnxi(fmt, ap);
+	va_end(ap);
+	fputc('\n', stderr);
+	exit(eval);
+}
+
+void
+warn(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vwarni(fmt, ap);
+	va_end(ap);
+}
+
+void
+warnx(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vwarnxi(fmt, ap);
+	va_end(ap);
+	fputc('\n', stderr);
+}
+
+#endif

Added: vendor/mandoc/dist/compat_fts.c
===================================================================
--- vendor/mandoc/dist/compat_fts.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_fts.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,701 @@
+#include "config.h"
+
+#if HAVE_FTS
+
+int dummy;
+
+#else
+
+/*	$Id: compat_fts.c,v 1.14 2017/02/18 12:24:24 schwarze Exp $	*/
+/*	$OpenBSD: fts.c,v 1.56 2016/09/21 04:38:56 guenther Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "compat_fts.h"
+
+#define MAXIMUM(a, b)	(((a) > (b)) ? (a) : (b))
+
+static FTSENT	*fts_alloc(FTS *, const char *, size_t);
+static FTSENT	*fts_build(FTS *);
+static void	 fts_lfree(FTSENT *);
+static void	 fts_load(FTS *, FTSENT *);
+static size_t	 fts_maxarglen(char * const *);
+static void	 fts_padjust(FTS *, FTSENT *);
+static int	 fts_palloc(FTS *, size_t);
+static FTSENT	*fts_sort(FTS *, FTSENT *, int);
+static unsigned short	 fts_stat(FTS *, FTSENT *);
+
+#define	ISDOT(a)	(a[0] == '.' && (!a[1] || (a[1] == '.' && !a[2])))
+#ifndef	O_CLOEXEC
+#define	O_CLOEXEC	0
+#endif
+
+#define	CLR(opt)	(sp->fts_options &= ~(opt))
+#define	ISSET(opt)	(sp->fts_options & (opt))
+#define	SET(opt)	(sp->fts_options |= (opt))
+
+FTS *
+fts_open(char * const *argv, int options,
+    int (*compar)(const FTSENT **, const FTSENT **))
+{
+	FTS *sp;
+	FTSENT *p, *root;
+	int nitems;
+	FTSENT *parent, *prev;
+
+	/* Options check. */
+	if (options & ~FTS_OPTIONMASK) {
+		errno = EINVAL;
+		return (NULL);
+	}
+
+	/* At least one path must be specified. */
+	if (*argv == NULL) {
+		errno = EINVAL;
+		return (NULL);
+	}
+
+	/* Allocate/initialize the stream */
+	if ((sp = calloc(1, sizeof(FTS))) == NULL)
+		return (NULL);
+	sp->fts_compar = compar;
+	sp->fts_options = options;
+
+	/*
+	 * Start out with 1K of path space, and enough, in any case,
+	 * to hold the user's paths.
+	 */
+	if (fts_palloc(sp, MAXIMUM(fts_maxarglen(argv), PATH_MAX)))
+		goto mem1;
+
+	/* Allocate/initialize root's parent. */
+	if ((parent = fts_alloc(sp, "", 0)) == NULL)
+		goto mem2;
+	parent->fts_level = FTS_ROOTPARENTLEVEL;
+
+	/* Allocate/initialize root(s). */
+	for (root = prev = NULL, nitems = 0; *argv; ++argv, ++nitems) {
+		if ((p = fts_alloc(sp, *argv, strlen(*argv))) == NULL)
+			goto mem3;
+		p->fts_level = FTS_ROOTLEVEL;
+		p->fts_parent = parent;
+		p->fts_accpath = p->fts_name;
+		p->fts_info = fts_stat(sp, p);
+
+		/* Command-line "." and ".." are real directories. */
+		if (p->fts_info == FTS_DOT)
+			p->fts_info = FTS_D;
+
+		/*
+		 * If comparison routine supplied, traverse in sorted
+		 * order; otherwise traverse in the order specified.
+		 */
+		if (compar) {
+			p->fts_link = root;
+			root = p;
+		} else {
+			p->fts_link = NULL;
+			if (root == NULL)
+				root = p;
+			else
+				prev->fts_link = p;
+			prev = p;
+		}
+	}
+	if (compar && nitems > 1)
+		root = fts_sort(sp, root, nitems);
+
+	/*
+	 * Allocate a dummy pointer and make fts_read think that we've just
+	 * finished the node before the root(s); set p->fts_info to FTS_INIT
+	 * so that everything about the "current" node is ignored.
+	 */
+	if ((sp->fts_cur = fts_alloc(sp, "", 0)) == NULL)
+		goto mem3;
+	sp->fts_cur->fts_link = root;
+	sp->fts_cur->fts_info = FTS_INIT;
+
+	if (nitems == 0)
+		free(parent);
+
+	return (sp);
+
+mem3:	fts_lfree(root);
+	free(parent);
+mem2:	free(sp->fts_path);
+mem1:	free(sp);
+	return (NULL);
+}
+
+static void
+fts_load(FTS *sp, FTSENT *p)
+{
+	size_t len;
+	char *cp;
+
+	/*
+	 * Load the stream structure for the next traversal.  Since we don't
+	 * actually enter the directory until after the preorder visit, set
+	 * the fts_accpath field specially so the chdir gets done to the right
+	 * place and the user can access the first node.  From fts_open it's
+	 * known that the path will fit.
+	 */
+	len = p->fts_pathlen = p->fts_namelen;
+	memmove(sp->fts_path, p->fts_name, len + 1);
+	if ((cp = strrchr(p->fts_name, '/')) && (cp != p->fts_name || cp[1])) {
+		len = strlen(++cp);
+		memmove(p->fts_name, cp, len + 1);
+		p->fts_namelen = len;
+	}
+	p->fts_accpath = p->fts_path = sp->fts_path;
+	sp->fts_dev = p->fts_dev;
+}
+
+int
+fts_close(FTS *sp)
+{
+	FTSENT *freep, *p;
+
+	/*
+	 * This still works if we haven't read anything -- the dummy structure
+	 * points to the root list, so we step through to the end of the root
+	 * list which has a valid parent pointer.
+	 */
+	if (sp->fts_cur) {
+		for (p = sp->fts_cur; p->fts_level >= FTS_ROOTLEVEL;) {
+			freep = p;
+			p = p->fts_link ? p->fts_link : p->fts_parent;
+			free(freep);
+		}
+		free(p);
+	}
+
+	/* Free up child linked list, sort array, path buffer, stream ptr.*/
+	if (sp->fts_child)
+		fts_lfree(sp->fts_child);
+	free(sp->fts_array);
+	free(sp->fts_path);
+	free(sp);
+
+	return (0);
+}
+
+/*
+ * Special case of "/" at the end of the path so that slashes aren't
+ * appended which would cause paths to be written as "....//foo".
+ */
+#define	NAPPEND(p)							\
+	(p->fts_path[p->fts_pathlen - 1] == '/'				\
+	    ? p->fts_pathlen - 1 : p->fts_pathlen)
+
+FTSENT *
+fts_read(FTS *sp)
+{
+	FTSENT *p, *tmp;
+	int instr;
+	char *t;
+
+	/* If finished or unrecoverable error, return NULL. */
+	if (sp->fts_cur == NULL || ISSET(FTS_STOP))
+		return (NULL);
+
+	/* Set current node pointer. */
+	p = sp->fts_cur;
+
+	/* Save and zero out user instructions. */
+	instr = p->fts_instr;
+	p->fts_instr = FTS_NOINSTR;
+
+	/* Directory in pre-order. */
+	if (p->fts_info == FTS_D) {
+		/* If skipped or crossed mount point, do post-order visit. */
+		if (instr == FTS_SKIP ||
+		    (ISSET(FTS_XDEV) && p->fts_dev != sp->fts_dev)) {
+			if (sp->fts_child) {
+				fts_lfree(sp->fts_child);
+				sp->fts_child = NULL;
+			}
+			p->fts_info = FTS_DP;
+			return (p);
+		}
+
+		/*
+		 * If haven't read do so.  If the read fails, fts_build sets
+		 * FTS_STOP or the fts_info field of the node.
+		 */
+		if (sp->fts_child) {
+			/* nothing */
+		} else if ((sp->fts_child = fts_build(sp)) == NULL) {
+			if (ISSET(FTS_STOP))
+				return (NULL);
+			return (p);
+		}
+		p = sp->fts_child;
+		sp->fts_child = NULL;
+		goto name;
+	}
+
+	/* Move to the next node on this level. */
+next:	tmp = p;
+	if ((p = p->fts_link)) {
+		free(tmp);
+
+		/*
+		 * If reached the top, return to the original directory (or
+		 * the root of the tree), and load the paths for the next root.
+		 */
+		if (p->fts_level == FTS_ROOTLEVEL) {
+			fts_load(sp, p);
+			return (sp->fts_cur = p);
+		}
+
+		/*
+		 * User may have called fts_set on the node.  If skipped,
+		 * ignore.  If followed, get a file descriptor so we can
+		 * get back if necessary.
+		 */
+		if (p->fts_instr == FTS_SKIP)
+			goto next;
+
+name:		t = sp->fts_path + NAPPEND(p->fts_parent);
+		*t++ = '/';
+		memmove(t, p->fts_name, p->fts_namelen + 1);
+		return (sp->fts_cur = p);
+	}
+
+	/* Move up to the parent node. */
+	p = tmp->fts_parent;
+	free(tmp);
+
+	if (p->fts_level == FTS_ROOTPARENTLEVEL) {
+		/*
+		 * Done; free everything up and set errno to 0 so the user
+		 * can distinguish between error and EOF.
+		 */
+		free(p);
+		errno = 0;
+		return (sp->fts_cur = NULL);
+	}
+
+	/* NUL terminate the pathname. */
+	sp->fts_path[p->fts_pathlen] = '\0';
+
+	p->fts_info = p->fts_errno ? FTS_ERR : FTS_DP;
+	return (sp->fts_cur = p);
+}
+
+/*
+ * Fts_set takes the stream as an argument although it's not used in this
+ * implementation; it would be necessary if anyone wanted to add global
+ * semantics to fts using fts_set.  An error return is allowed for similar
+ * reasons.
+ */
+int
+fts_set(FTS *sp, FTSENT *p, int instr)
+{
+	if (instr && instr != FTS_NOINSTR && instr != FTS_SKIP) {
+		errno = EINVAL;
+		return (1);
+	}
+	p->fts_instr = instr;
+	return (0);
+}
+
+/*
+ * This is the tricky part -- do not casually change *anything* in here.  The
+ * idea is to build the linked list of entries that are used by fts_children
+ * and fts_read.  There are lots of special cases.
+ *
+ * The real slowdown in walking the tree is the stat calls.  If FTS_NOSTAT is
+ * set and it's a physical walk (so that symbolic links can't be directories),
+ * we can do things quickly.  First, if it's a 4.4BSD file system, the type
+ * of the file is in the directory entry.  Otherwise, we assume that the number
+ * of subdirectories in a node is equal to the number of links to the parent.
+ * The former skips all stat calls.  The latter skips stat calls in any leaf
+ * directories and for any files after the subdirectories in the directory have
+ * been found, cutting the stat calls by about 2/3.
+ */
+static FTSENT *
+fts_build(FTS *sp)
+{
+	struct dirent *dp;
+	FTSENT *p, *head;
+	FTSENT *cur, *tail;
+	DIR *dirp;
+	void *oldaddr;
+	size_t dlen, len, maxlen;
+	int nitems, level, doadjust;
+	int saved_errno;
+	char *cp;
+
+	/* Set current node pointer. */
+	cur = sp->fts_cur;
+
+	/*
+	 * Open the directory for reading.  If this fails, we're done.
+	 * If being called from fts_read, set the fts_info field.
+	 */
+	if ((dirp = opendir(cur->fts_accpath)) == NULL) {
+		cur->fts_info = FTS_DNR;
+		cur->fts_errno = errno;
+		return (NULL);
+	}
+
+	/*
+	 * Figure out the max file name length that can be stored in the
+	 * current path -- the inner loop allocates more path as necessary.
+	 * We really wouldn't have to do the maxlen calculations here, we
+	 * could do them in fts_read before returning the path, but it's a
+	 * lot easier here since the length is part of the dirent structure.
+	 *
+	 * If not changing directories set a pointer so that can just append
+	 * each new name into the path.
+	 */
+	len = NAPPEND(cur);
+	cp = sp->fts_path + len;
+	*cp++ = '/';
+	len++;
+	maxlen = sp->fts_pathlen - len;
+
+	/*
+	 * fts_level is signed so we must prevent it from wrapping
+	 * around to FTS_ROOTLEVEL and FTS_ROOTPARENTLEVEL.
+	 */
+	level = cur->fts_level;
+	if (level < FTS_MAXLEVEL)
+	    level++;
+
+	/* Read the directory, attaching each entry to the `link' pointer. */
+	doadjust = 0;
+	for (head = tail = NULL, nitems = 0; dirp && (dp = readdir(dirp));) {
+		if (ISDOT(dp->d_name))
+			continue;
+
+#if HAVE_DIRENT_NAMLEN
+		dlen = dp->d_namlen;
+#else
+		dlen = strlen(dp->d_name);
+#endif
+
+		if (!(p = fts_alloc(sp, dp->d_name, dlen)))
+			goto mem1;
+		if (dlen >= maxlen) {	/* include space for NUL */
+			oldaddr = sp->fts_path;
+			if (fts_palloc(sp, dlen + len + 1)) {
+				/*
+				 * No more memory for path or structures.  Save
+				 * errno, free up the current structure and the
+				 * structures already allocated.
+				 */
+mem1:				saved_errno = errno;
+				free(p);
+				fts_lfree(head);
+				(void)closedir(dirp);
+				cur->fts_info = FTS_ERR;
+				SET(FTS_STOP);
+				errno = saved_errno;
+				return (NULL);
+			}
+			/* Did realloc() change the pointer? */
+			if (oldaddr != sp->fts_path) {
+				doadjust = 1;
+				cp = sp->fts_path + len;
+			}
+			maxlen = sp->fts_pathlen - len;
+		}
+
+		p->fts_level = level;
+		p->fts_parent = sp->fts_cur;
+		p->fts_pathlen = len + dlen;
+		if (p->fts_pathlen < len) {
+			/*
+			 * If we wrap, free up the current structure and
+			 * the structures already allocated, then error
+			 * out with ENAMETOOLONG.
+			 */
+			free(p);
+			fts_lfree(head);
+			(void)closedir(dirp);
+			cur->fts_info = FTS_ERR;
+			SET(FTS_STOP);
+			errno = ENAMETOOLONG;
+			return (NULL);
+		}
+
+		/* Build a file name for fts_stat to stat. */
+		p->fts_accpath = p->fts_path;
+		memmove(cp, p->fts_name, p->fts_namelen + 1);
+		/* Stat it. */
+		p->fts_info = fts_stat(sp, p);
+
+		/* We walk in directory order so "ls -f" doesn't get upset. */
+		p->fts_link = NULL;
+		if (head == NULL)
+			head = tail = p;
+		else {
+			tail->fts_link = p;
+			tail = p;
+		}
+		++nitems;
+	}
+	if (dirp)
+		(void)closedir(dirp);
+
+	/*
+	 * If realloc() changed the address of the path, adjust the
+	 * addresses for the rest of the tree and the dir list.
+	 */
+	if (doadjust)
+		fts_padjust(sp, head);
+
+	/*
+	 * If not changing directories, reset the path back to original
+	 * state.
+	 */
+	if (len == sp->fts_pathlen || nitems == 0)
+		--cp;
+	*cp = '\0';
+
+	/* If didn't find anything, return NULL. */
+	if (!nitems) {
+		cur->fts_info = FTS_DP;
+		return (NULL);
+	}
+
+	/* Sort the entries. */
+	if (sp->fts_compar && nitems > 1)
+		head = fts_sort(sp, head, nitems);
+	return (head);
+}
+
+static unsigned short
+fts_stat(FTS *sp, FTSENT *p)
+{
+	FTSENT *t;
+	dev_t dev;
+	ino_t ino;
+	struct stat *sbp;
+
+	/* If user needs stat info, stat buffer already allocated. */
+	sbp = p->fts_statp;
+
+	if (lstat(p->fts_accpath, sbp)) {
+		p->fts_errno = errno;
+		memset(sbp, 0, sizeof(struct stat));
+		return (FTS_NS);
+	}
+
+	if (S_ISDIR(sbp->st_mode)) {
+		/*
+		 * Set the device/inode.  Used to find cycles and check for
+		 * crossing mount points.  Also remember the link count, used
+		 * in fts_build to limit the number of stat calls.  It is
+		 * understood that these fields are only referenced if fts_info
+		 * is set to FTS_D.
+		 */
+		dev = p->fts_dev = sbp->st_dev;
+		ino = p->fts_ino = sbp->st_ino;
+		p->fts_nlink = sbp->st_nlink;
+
+		if (ISDOT(p->fts_name))
+			return (FTS_DOT);
+
+		/*
+		 * Cycle detection is done by brute force when the directory
+		 * is first encountered.  If the tree gets deep enough or the
+		 * number of symbolic links to directories is high enough,
+		 * something faster might be worthwhile.
+		 */
+		for (t = p->fts_parent;
+		    t->fts_level >= FTS_ROOTLEVEL; t = t->fts_parent)
+			if (ino == t->fts_ino && dev == t->fts_dev) {
+				p->fts_cycle = t;
+				return (FTS_DC);
+			}
+		return (FTS_D);
+	}
+	if (S_ISLNK(sbp->st_mode))
+		return (FTS_SL);
+	if (S_ISREG(sbp->st_mode))
+		return (FTS_F);
+	return (FTS_DEFAULT);
+}
+
+static FTSENT *
+fts_sort(FTS *sp, FTSENT *head, int nitems)
+{
+	FTSENT **ap, *p;
+
+	/*
+	 * Construct an array of pointers to the structures and call qsort(3).
+	 * Reassemble the array in the order returned by qsort.  If unable to
+	 * sort for memory reasons, return the directory entries in their
+	 * current order.  Allocate enough space for the current needs plus
+	 * 40 so don't realloc one entry at a time.
+	 */
+	if (nitems > sp->fts_nitems) {
+		struct _ftsent **a;
+
+		sp->fts_nitems = nitems + 40;
+		if ((a = reallocarray(sp->fts_array,
+		    sp->fts_nitems, sizeof(FTSENT *))) == NULL) {
+			free(sp->fts_array);
+			sp->fts_array = NULL;
+			sp->fts_nitems = 0;
+			return (head);
+		}
+		sp->fts_array = a;
+	}
+	for (ap = sp->fts_array, p = head; p; p = p->fts_link)
+		*ap++ = p;
+	qsort(sp->fts_array, nitems, sizeof(FTSENT *), sp->fts_compar);
+	for (head = *(ap = sp->fts_array); --nitems; ++ap)
+		ap[0]->fts_link = ap[1];
+	ap[0]->fts_link = NULL;
+	return (head);
+}
+
+static FTSENT *
+fts_alloc(FTS *sp, const char *name, size_t namelen)
+{
+	FTSENT *p;
+	size_t len;
+
+	len = sizeof(FTSENT) + namelen;
+	if ((p = calloc(1, len)) == NULL)
+		return (NULL);
+
+	p->fts_path = sp->fts_path;
+	p->fts_namelen = namelen;
+	p->fts_instr = FTS_NOINSTR;
+	p->fts_statp = malloc(sizeof(struct stat));
+	if (p->fts_statp == NULL) {
+		free(p);
+		return (NULL);
+	}
+	memcpy(p->fts_name, name, namelen);
+
+	return (p);
+}
+
+static void
+fts_lfree(FTSENT *head)
+{
+	FTSENT *p;
+
+	/* Free a linked list of structures. */
+	while ((p = head)) {
+		head = head->fts_link;
+		free(p);
+	}
+}
+
+/*
+ * Allow essentially unlimited paths; find, rm, ls should all work on any tree.
+ * Most systems will allow creation of paths much longer than PATH_MAX, even
+ * though the kernel won't resolve them.  Add the size (not just what's needed)
+ * plus 256 bytes so don't realloc the path 2 bytes at a time.
+ */
+static int
+fts_palloc(FTS *sp, size_t more)
+{
+	char *p;
+
+	/*
+	 * Check for possible wraparound.
+	 */
+	more += 256;
+	if (sp->fts_pathlen + more < sp->fts_pathlen) {
+		free(sp->fts_path);
+		sp->fts_path = NULL;
+		errno = ENAMETOOLONG;
+		return (1);
+	}
+	sp->fts_pathlen += more;
+	p = realloc(sp->fts_path, sp->fts_pathlen);
+	if (p == NULL) {
+		free(sp->fts_path);
+		sp->fts_path = NULL;
+		return (1);
+	}
+	sp->fts_path = p;
+	return (0);
+}
+
+/*
+ * When the path is realloc'd, have to fix all of the pointers in structures
+ * already returned.
+ */
+static void
+fts_padjust(FTS *sp, FTSENT *head)
+{
+	FTSENT *p;
+	char *addr = sp->fts_path;
+
+#define	ADJUST(p) {							\
+	if ((p)->fts_accpath != (p)->fts_name) {			\
+		(p)->fts_accpath =					\
+		    (char *)addr + ((p)->fts_accpath - (p)->fts_path);	\
+	}								\
+	(p)->fts_path = addr;						\
+}
+	/* Adjust the current set of children. */
+	for (p = sp->fts_child; p; p = p->fts_link)
+		ADJUST(p);
+
+	/* Adjust the rest of the tree, including the current level. */
+	for (p = head; p->fts_level >= FTS_ROOTLEVEL;) {
+		ADJUST(p);
+		p = p->fts_link ? p->fts_link : p->fts_parent;
+	}
+}
+
+static size_t
+fts_maxarglen(char * const *argv)
+{
+	size_t len, max;
+
+	for (max = 0; *argv; ++argv)
+		if ((len = strlen(*argv)) > max)
+			max = len;
+	return (max + 1);
+}
+
+#endif

Added: vendor/mandoc/dist/compat_fts.h
===================================================================
--- vendor/mandoc/dist/compat_fts.h	                        (rev 0)
+++ vendor/mandoc/dist/compat_fts.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,105 @@
+/*	$OpenBSD: fts.h,v 1.14 2012/12/05 23:19:57 deraadt Exp $	*/
+/*	$NetBSD: fts.h,v 1.7 2012/03/01 16:18:51 hans Exp $	*/
+
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)fts.h	8.3 (Berkeley) 8/14/94
+ */
+
+#ifndef	_FTS_H_
+#define	_FTS_H_
+
+typedef struct {
+	struct _ftsent *fts_cur;	/* current node */
+	struct _ftsent *fts_child;	/* linked list of children */
+	struct _ftsent **fts_array;	/* sort array */
+	dev_t fts_dev;			/* starting device # */
+	char *fts_path;			/* path for this descent */
+	size_t fts_pathlen;		/* sizeof(path) */
+	int fts_nitems;			/* elements in the sort array */
+	int (*fts_compar)();		/* compare function */
+
+#define	FTS_NOCHDIR	0x0004		/* don't change directories */
+#define	FTS_PHYSICAL	0x0010		/* physical walk */
+#define	FTS_XDEV	0x0040		/* don't cross devices */
+#define	FTS_OPTIONMASK	0x0054		/* valid user option mask */
+
+#define	FTS_STOP	0x2000		/* (private) unrecoverable error */
+	int fts_options;		/* fts_open options, global flags */
+} FTS;
+
+typedef struct _ftsent {
+	struct _ftsent *fts_cycle;	/* cycle node */
+	struct _ftsent *fts_parent;	/* parent directory */
+	struct _ftsent *fts_link;	/* next file in directory */
+	char *fts_accpath;		/* access path */
+	char *fts_path;			/* root path */
+	int fts_errno;			/* errno for this node */
+	size_t fts_pathlen;		/* strlen(fts_path) */
+	size_t fts_namelen;		/* strlen(fts_name) */
+
+	ino_t fts_ino;			/* inode */
+	dev_t fts_dev;			/* device */
+	nlink_t fts_nlink;		/* link count */
+
+#define	FTS_ROOTPARENTLEVEL	-1
+#define	FTS_ROOTLEVEL		 0
+#define	FTS_MAXLEVEL		 0x7fffffff
+	int fts_level;		/* depth (-1 to N) */
+
+#define	FTS_D		 1		/* preorder directory */
+#define	FTS_DC		 2		/* directory that causes cycles */
+#define	FTS_DEFAULT	 3		/* none of the above */
+#define	FTS_DNR		 4		/* unreadable directory */
+#define	FTS_DOT		 5		/* dot or dot-dot */
+#define	FTS_DP		 6		/* postorder directory */
+#define	FTS_ERR		 7		/* error; errno is set */
+#define	FTS_F		 8		/* regular file */
+#define	FTS_INIT	 9		/* initialized only */
+#define	FTS_NS		10		/* stat(2) failed */
+#define	FTS_NSOK	11		/* no stat(2) requested */
+#define	FTS_SL		12		/* symbolic link */
+	unsigned short fts_info;	/* user flags for FTSENT structure */
+
+#define	FTS_NOINSTR	 3		/* no instructions */
+#define	FTS_SKIP	 4		/* discard node */
+	unsigned short fts_instr;	/* fts_set() instructions */
+
+	struct stat *fts_statp;		/* stat(2) information */
+	char fts_name[1];		/* file name */
+} FTSENT;
+
+
+int	 fts_close(FTS *);
+FTS	*fts_open(char * const *, int,
+	    int (*)(const FTSENT **, const FTSENT **));
+FTSENT	*fts_read(FTS *);
+int	 fts_set(FTS *, FTSENT *, int);
+
+#endif /* !_FTS_H_ */

Added: vendor/mandoc/dist/compat_getline.c
===================================================================
--- vendor/mandoc/dist/compat_getline.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_getline.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,68 @@
+#include "config.h"
+
+#if HAVE_GETLINE
+
+int dummy;
+
+#else
+
+/*	$Id: compat_getline.c,v 1.1 2015/11/07 20:52:52 schwarze Exp $ */
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+ssize_t
+getline(char **buf, size_t *bufsz, FILE *fp)
+{
+	char	*nbuf;
+	size_t	 nbufsz, pos;
+	int	 c;
+
+	if (buf == NULL || bufsz == NULL) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	if (*buf == NULL)
+		*bufsz = 0;
+	else
+		**buf = '\0';
+
+	pos = 0;
+	for (;;) {
+		if (pos + 1 >= *bufsz) {
+			nbufsz = *bufsz ? *bufsz * 2 : BUFSIZ;
+			if ((nbuf = realloc(*buf, nbufsz)) == NULL)
+				return -1;
+			*buf = nbuf;
+			*bufsz = nbufsz;
+		}
+		if ((c = fgetc(fp)) == EOF) {
+			(*buf)[pos] = '\0';
+			return pos > 0 && feof(fp) ? (ssize_t)pos : -1;
+		}
+		(*buf)[pos++] = c;
+		(*buf)[pos] = '\0';
+		if (c == '\n')
+			return pos;
+	}
+}
+
+#endif

Added: vendor/mandoc/dist/compat_getsubopt.c
===================================================================
--- vendor/mandoc/dist/compat_getsubopt.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_getsubopt.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,96 @@
+#include "config.h"
+
+#if HAVE_GETSUBOPT
+
+int dummy;
+
+#else
+
+/*	$Id: compat_getsubopt.c,v 1.5 2014/08/17 20:53:50 schwarze Exp $	*/
+/*	$OpenBSD: getsubopt.c,v 1.4 2005/08/08 08:05:36 espie Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+int
+getsubopt(char **optionp, char * const *tokens, char **valuep)
+{
+	int cnt;
+	char *suboptarg;
+	char *p;
+
+	suboptarg = *valuep = NULL;
+
+	if (!optionp || !*optionp)
+		return(-1);
+
+	/* skip leading white-space, commas */
+	for (p = *optionp; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p);
+
+	if (!*p) {
+		*optionp = p;
+		return(-1);
+	}
+
+	/* save the start of the token, and skip the rest of the token. */
+	for (suboptarg = p;
+	    *++p && *p != ',' && *p != '=' && *p != ' ' && *p != '\t';);
+
+	if (*p) {
+		/*
+		 * If there's an equals sign, set the value pointer, and
+		 * skip over the value part of the token.  Terminate the
+		 * token.
+		 */
+		if (*p == '=') {
+			*p = '\0';
+			for (*valuep = ++p;
+			    *p && *p != ',' && *p != ' ' && *p != '\t'; ++p);
+			if (*p) 
+				*p++ = '\0';
+		} else
+			*p++ = '\0';
+		/* Skip any whitespace or commas after this token. */
+		for (; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p);
+	}
+
+	/* set optionp for next round. */
+	*optionp = p;
+
+	for (cnt = 0; *tokens; ++tokens, ++cnt)
+		if (!strcmp(suboptarg, *tokens))
+			return(cnt);
+	return(-1);
+}
+
+#endif

Added: vendor/mandoc/dist/compat_isblank.c
===================================================================
--- vendor/mandoc/dist/compat_isblank.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_isblank.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+#include "config.h"
+
+#if HAVE_ISBLANK
+
+int dummy;
+
+#else
+
+/*	$Id: compat_isblank.c,v 1.2 2015/10/06 18:32:19 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+int
+isblank(int c)
+{
+
+	return c == ' ' || c == '\t';
+}
+
+#endif

Added: vendor/mandoc/dist/compat_mkdtemp.c
===================================================================
--- vendor/mandoc/dist/compat_mkdtemp.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_mkdtemp.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,61 @@
+#include "config.h"
+
+#if HAVE_MKDTEMP
+
+int dummy;
+
+#else
+
+/*	$Id: compat_mkdtemp.c,v 1.2 2015/10/06 18:32:19 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * The algorithm of this function is inspired by OpenBSD mkdtemp(3)
+ * by Theo de Raadt and Todd Miller, but the code differs.
+ */
+
+#include <sys/stat.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+
+char *
+mkdtemp(char *path)
+{
+	char		*start, *cp;
+	unsigned	 int tries;
+
+	start = strchr(path, '\0');
+	while (start > path && start[-1] == 'X')
+		start--;
+
+	for (tries = INT_MAX; tries; tries--) {
+		if (mktemp(path) == NULL) {
+			errno = EEXIST;
+			return NULL;
+		}
+		if (mkdir(path, S_IRUSR | S_IWUSR | S_IXUSR) == 0)
+			return path;
+		if (errno != EEXIST)
+			return NULL;
+		for (cp = start; *cp != '\0'; cp++)
+			*cp = 'X';
+	}
+	errno = EEXIST;
+	return NULL;
+}
+
+#endif

Added: vendor/mandoc/dist/compat_ohash.c
===================================================================
--- vendor/mandoc/dist/compat_ohash.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_ohash.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,339 @@
+#include "config.h"
+
+#if HAVE_OHASH
+
+int dummy;
+
+#else
+
+/* $OpenBSD: ohash.c,v 1.1 2014/06/02 18:52:03 deraadt Exp $ */
+
+/* Copyright (c) 1999, 2004 Marc Espie <espie at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include "compat_ohash.h"
+
+struct _ohash_record {
+	uint32_t	hv;
+	const char	*p;
+};
+
+#define DELETED		((const char *)h)
+#define NONE		(h->size)
+
+/* Don't bother changing the hash table if the change is small enough.  */
+#define MINSIZE		(1UL << 4)
+#define MINDELETED	4
+
+static void ohash_resize(struct ohash *);
+
+
+/* This handles the common case of variable length keys, where the
+ * key is stored at the end of the record.
+ */
+void *
+ohash_create_entry(struct ohash_info *i, const char *start, const char **end)
+{
+	char *p;
+
+	if (!*end)
+		*end = start + strlen(start);
+	p = (i->alloc)(i->key_offset + (*end - start) + 1, i->data);
+	if (p) {
+		memcpy(p+i->key_offset, start, *end-start);
+		p[i->key_offset + (*end - start)] = '\0';
+	}
+	return (void *)p;
+}
+
+/* hash_delete only frees the hash structure. Use hash_first/hash_next
+ * to free entries as well.  */
+void
+ohash_delete(struct ohash *h)
+{
+	(h->info.free)(h->t, h->info.data);
+#ifndef NDEBUG
+	h->t = NULL;
+#endif
+}
+
+static void
+ohash_resize(struct ohash *h)
+{
+	struct _ohash_record *n;
+	size_t ns;
+	unsigned int	j;
+	unsigned int	i, incr;
+
+	if (4 * h->deleted < h->total) {
+		if (h->size >= (UINT_MAX >> 1U))
+			ns = UINT_MAX;
+		else
+			ns = h->size << 1U;
+	} else if (3 * h->deleted > 2 * h->total)
+		ns = h->size >> 1U;
+	else
+		ns = h->size;
+	if (ns < MINSIZE)
+		ns = MINSIZE;
+#ifdef STATS_HASH
+	STAT_HASH_EXPAND++;
+	STAT_HASH_SIZE += ns - h->size;
+#endif
+
+	n = (h->info.calloc)(ns, sizeof(struct _ohash_record), h->info.data);
+	if (!n)
+		return;
+
+	for (j = 0; j < h->size; j++) {
+		if (h->t[j].p != NULL && h->t[j].p != DELETED) {
+			i = h->t[j].hv % ns;
+			incr = ((h->t[j].hv % (ns - 2)) & ~1) + 1;
+			while (n[i].p != NULL) {
+				i += incr;
+				if (i >= ns)
+					i -= ns;
+			}
+			n[i].hv = h->t[j].hv;
+			n[i].p = h->t[j].p;
+		}
+	}
+	(h->info.free)(h->t, h->info.data);
+	h->t = n;
+	h->size = ns;
+	h->total -= h->deleted;
+	h->deleted = 0;
+}
+
+void *
+ohash_remove(struct ohash *h, unsigned int i)
+{
+	void		*result = (void *)h->t[i].p;
+
+	if (result == NULL || result == DELETED)
+		return NULL;
+
+#ifdef STATS_HASH
+	STAT_HASH_ENTRIES--;
+#endif
+	h->t[i].p = DELETED;
+	h->deleted++;
+	if (h->deleted >= MINDELETED && 4 * h->deleted > h->total)
+		ohash_resize(h);
+	return result;
+}
+
+void *
+ohash_find(struct ohash *h, unsigned int i)
+{
+	if (h->t[i].p == DELETED)
+		return NULL;
+	else
+		return (void *)h->t[i].p;
+}
+
+void *
+ohash_insert(struct ohash *h, unsigned int i, void *p)
+{
+#ifdef STATS_HASH
+	STAT_HASH_ENTRIES++;
+#endif
+	if (h->t[i].p == DELETED) {
+		h->deleted--;
+		h->t[i].p = p;
+	} else {
+		h->t[i].p = p;
+		/* Arbitrary resize boundary.  Tweak if not efficient enough.  */
+		if (++h->total * 4 > h->size * 3)
+			ohash_resize(h);
+	}
+	return p;
+}
+
+unsigned int
+ohash_entries(struct ohash *h)
+{
+	return h->total - h->deleted;
+}
+
+void *
+ohash_first(struct ohash *h, unsigned int *pos)
+{
+	*pos = 0;
+	return ohash_next(h, pos);
+}
+
+void *
+ohash_next(struct ohash *h, unsigned int *pos)
+{
+	for (; *pos < h->size; (*pos)++)
+		if (h->t[*pos].p != DELETED && h->t[*pos].p != NULL)
+			return (void *)h->t[(*pos)++].p;
+	return NULL;
+}
+
+void
+ohash_init(struct ohash *h, unsigned int size, struct ohash_info *info)
+{
+	h->size = 1UL << size;
+	if (h->size < MINSIZE)
+		h->size = MINSIZE;
+#ifdef STATS_HASH
+	STAT_HASH_CREATION++;
+	STAT_HASH_SIZE += h->size;
+#endif
+	/* Copy info so that caller may free it.  */
+	h->info.key_offset = info->key_offset;
+	h->info.calloc = info->calloc;
+	h->info.free = info->free;
+	h->info.alloc = info->alloc;
+	h->info.data = info->data;
+	h->t = (h->info.calloc)(h->size, sizeof(struct _ohash_record),
+		    h->info.data);
+	h->total = h->deleted = 0;
+}
+
+uint32_t
+ohash_interval(const char *s, const char **e)
+{
+	uint32_t k;
+
+	if (!*e)
+		*e = s + strlen(s);
+	if (s == *e)
+		k = 0;
+	else
+		k = *s++;
+	while (s != *e)
+		k =  ((k << 2) | (k >> 30)) ^ *s++;
+	return k;
+}
+
+unsigned int
+ohash_lookup_interval(struct ohash *h, const char *start, const char *end,
+    uint32_t hv)
+{
+	unsigned int	i, incr;
+	unsigned int	empty;
+
+#ifdef STATS_HASH
+	STAT_HASH_LOOKUP++;
+#endif
+	empty = NONE;
+	i = hv % h->size;
+	incr = ((hv % (h->size-2)) & ~1) + 1;
+	while (h->t[i].p != NULL) {
+#ifdef STATS_HASH
+		STAT_HASH_LENGTH++;
+#endif
+		if (h->t[i].p == DELETED) {
+			if (empty == NONE)
+				empty = i;
+		} else if (h->t[i].hv == hv &&
+		    strncmp(h->t[i].p+h->info.key_offset, start,
+			end - start) == 0 &&
+		    (h->t[i].p+h->info.key_offset)[end-start] == '\0') {
+			if (empty != NONE) {
+				h->t[empty].hv = hv;
+				h->t[empty].p = h->t[i].p;
+				h->t[i].p = DELETED;
+				return empty;
+			} else {
+#ifdef STATS_HASH
+				STAT_HASH_POSITIVE++;
+#endif
+				return i;
+			}
+		}
+		i += incr;
+		if (i >= h->size)
+			i -= h->size;
+	}
+
+	/* Found an empty position.  */
+	if (empty != NONE)
+		i = empty;
+	h->t[i].hv = hv;
+	return i;
+}
+
+unsigned int
+ohash_lookup_memory(struct ohash *h, const char *k, size_t size, uint32_t hv)
+{
+	unsigned int	i, incr;
+	unsigned int	empty;
+
+#ifdef STATS_HASH
+	STAT_HASH_LOOKUP++;
+#endif
+	empty = NONE;
+	i = hv % h->size;
+	incr = ((hv % (h->size-2)) & ~1) + 1;
+	while (h->t[i].p != NULL) {
+#ifdef STATS_HASH
+		STAT_HASH_LENGTH++;
+#endif
+		if (h->t[i].p == DELETED) {
+			if (empty == NONE)
+				empty = i;
+		} else if (h->t[i].hv == hv &&
+		    memcmp(h->t[i].p+h->info.key_offset, k, size) == 0) {
+			if (empty != NONE) {
+				h->t[empty].hv = hv;
+				h->t[empty].p = h->t[i].p;
+				h->t[i].p = DELETED;
+				return empty;
+			} else {
+#ifdef STATS_HASH
+				STAT_HASH_POSITIVE++;
+#endif
+			}	return i;
+		}
+		i += incr;
+		if (i >= h->size)
+			i -= h->size;
+	}
+
+	/* Found an empty position.  */
+	if (empty != NONE)
+		i = empty;
+	h->t[i].hv = hv;
+	return i;
+}
+
+unsigned int
+ohash_qlookup(struct ohash *h, const char *s)
+{
+	const char *e = NULL;
+	return ohash_qlookupi(h, s, &e);
+}
+
+unsigned int
+ohash_qlookupi(struct ohash *h, const char *s, const char **e)
+{
+	uint32_t hv;
+
+	hv = ohash_interval(s, e);
+	return ohash_lookup_interval(h, s, *e, hv);
+}
+
+#endif /*!HAVE_OHASH*/

Added: vendor/mandoc/dist/compat_ohash.h
===================================================================
--- vendor/mandoc/dist/compat_ohash.h	                        (rev 0)
+++ vendor/mandoc/dist/compat_ohash.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,72 @@
+/* $OpenBSD: ohash.h,v 1.2 2014/06/02 18:52:03 deraadt Exp $ */
+
+/* Copyright (c) 1999, 2004 Marc Espie <espie at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef OHASH_H
+#define OHASH_H
+
+/* Open hashing support. 
+ * Open hashing was chosen because it is much lighter than other hash
+ * techniques, and more efficient in most cases.
+ */
+
+/* user-visible data structure */
+struct ohash_info {
+	ptrdiff_t key_offset;
+	void *data;	/* user data */
+	void *(*calloc)(size_t, size_t, void *);
+	void (*free)(void *, void *);
+	void *(*alloc)(size_t, void *);
+};
+
+struct _ohash_record;
+
+/* private structure. It's there just so you can do a sizeof */
+struct ohash {
+	struct _ohash_record 	*t;
+	struct ohash_info 	info;
+	unsigned int 		size;
+	unsigned int 		total;
+	unsigned int 		deleted;
+};
+
+/* For this to be tweakable, we use small primitives, and leave part of the
+ * logic to the client application.  e.g., hashing is left to the client
+ * application.  We also provide a simple table entry lookup that yields
+ * a hashing table index (opaque) to be used in find/insert/remove.
+ * The keys are stored at a known position in the client data.
+ */
+void ohash_init(struct ohash *, unsigned, struct ohash_info *);
+void ohash_delete(struct ohash *);
+
+unsigned int ohash_lookup_interval(struct ohash *, const char *,
+	    const char *, uint32_t);
+unsigned int ohash_lookup_memory(struct ohash *, const char *,
+	    size_t, uint32_t);
+void *ohash_find(struct ohash *, unsigned int);
+void *ohash_remove(struct ohash *, unsigned int);
+void *ohash_insert(struct ohash *, unsigned int, void *);
+void *ohash_first(struct ohash *, unsigned int *);
+void *ohash_next(struct ohash *, unsigned int *);
+unsigned int ohash_entries(struct ohash *);
+
+void *ohash_create_entry(struct ohash_info *, const char *, const char **);
+uint32_t ohash_interval(const char *, const char **);
+
+unsigned int ohash_qlookupi(struct ohash *, const char *, const char **);
+unsigned int ohash_qlookup(struct ohash *, const char *);
+
+#endif

Added: vendor/mandoc/dist/compat_progname.c
===================================================================
--- vendor/mandoc/dist/compat_progname.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_progname.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+#include "config.h"
+
+#if HAVE_PROGNAME
+
+int dummy;
+
+#else
+
+/*	$Id: compat_progname.c,v 1.1 2015/11/06 16:30:33 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+static const char *progname;
+
+void
+setprogname(const char *name)
+{
+
+	progname = name;
+}
+
+const char *
+getprogname(void)
+{
+
+	return progname;
+}
+
+#endif

Added: vendor/mandoc/dist/compat_reallocarray.c
===================================================================
--- vendor/mandoc/dist/compat_reallocarray.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_reallocarray.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+#include "config.h"
+
+#if HAVE_REALLOCARRAY
+
+int dummy;
+
+#else
+
+/*	$Id: compat_reallocarray.c,v 1.4 2014/12/11 09:05:01 schwarze Exp $	*/
+/*	$OpenBSD: reallocarray.c,v 1.2 2014/12/08 03:45:00 bcook Exp $	*/
+/*
+ * Copyright (c) 2008 Otto Moerbeek <otto at drijf.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+/*
+ * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
+ * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
+ */
+#define MUL_NO_OVERFLOW	((size_t)1 << (sizeof(size_t) * 4))
+
+void *
+reallocarray(void *optr, size_t nmemb, size_t size)
+{
+	if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+	    nmemb > 0 && SIZE_MAX / nmemb < size) {
+		errno = ENOMEM;
+		return NULL;
+	}
+	return realloc(optr, size * nmemb);
+}
+
+#endif /*!HAVE_REALLOCARRAY*/

Added: vendor/mandoc/dist/compat_recallocarray.c
===================================================================
--- vendor/mandoc/dist/compat_recallocarray.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_recallocarray.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,108 @@
+#include "config.h"
+
+#if HAVE_RECALLOCARRAY
+
+int dummy;
+
+#else
+
+/*	$Id: compat_recallocarray.c,v 1.1 2017/06/12 19:05:47 schwarze Exp $ */
+/*	$OpenBSD: malloc.c,v 1.225 2017/05/13 07:11:29 otto Exp $ */
+/*
+ * Copyright (c) 2017 Otto Moerbeek <otto at drijf.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
+ * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
+ */
+#define MUL_NO_OVERFLOW	((size_t)1 << (sizeof(size_t) * 4))
+
+/*
+ * Even though specified in POSIX, the PAGESIZE and PAGE_SIZE
+ * macros have very poor portability.  Since we only use this
+ * to avoid free() overhead for small shrinking, simply pick
+ * an arbitrary number.
+ */
+#define MALLOC_PAGESIZE         (1UL << 12)
+
+
+void *
+recallocarray(void *ptr, size_t oldnmemb, size_t newnmemb, size_t size)
+{
+	size_t oldsize, newsize;
+	void *newptr;
+
+	if (ptr == NULL)
+		return calloc(newnmemb, size);
+
+	if ((newnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+	    newnmemb > 0 && SIZE_MAX / newnmemb < size) {
+		errno = ENOMEM;
+		return NULL;
+	}
+	newsize = newnmemb * size;
+
+	if ((oldnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+	    oldnmemb > 0 && SIZE_MAX / oldnmemb < size) {
+		errno = EINVAL;
+		return NULL;
+	}
+	oldsize = oldnmemb * size;
+
+	/*
+	 * Don't bother too much if we're shrinking just a bit,
+	 * we do not shrink for series of small steps, oh well.
+	 */
+	if (newsize <= oldsize) {
+		size_t d = oldsize - newsize;
+
+		if (d < oldsize / 2 && d < MALLOC_PAGESIZE) {
+			memset((char *)ptr + newsize, 0, d);
+			return ptr;
+		}
+	}
+
+	newptr = malloc(newsize);
+	if (newptr == NULL)
+		return NULL;
+
+	if (newsize > oldsize) {
+		memcpy(newptr, ptr, oldsize);
+		memset((char *)newptr + oldsize, 0, newsize - oldsize);
+	} else
+		memcpy(newptr, ptr, newsize);
+
+	/*
+	 * At this point, the OpenBSD implementation calls
+	 * explicit_bzero() on the old memory before it is
+	 * freed.  Since explicit_bzero() is hard to implement
+	 * portably and we don't handle confidential data in
+	 * mandoc in the first place, simply free the memory
+	 * without clearing it.
+	 */
+
+	free(ptr);
+
+	return newptr;
+}
+
+#endif /* !HAVE_RECALLOCARRAY */

Added: vendor/mandoc/dist/compat_strcasestr.c
===================================================================
--- vendor/mandoc/dist/compat_strcasestr.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_strcasestr.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,73 @@
+#include "config.h"
+
+#if HAVE_STRCASESTR
+
+int dummy;
+
+#else
+
+/*	$Id: compat_strcasestr.c,v 1.4 2014/12/11 09:19:32 schwarze Exp $	*/
+/*	$NetBSD: strcasestr.c,v 1.3 2005/11/29 03:12:00 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <ctype.h>
+#include <string.h>
+
+#define	__UNCONST(a)	((void *)(unsigned long)(const void *)(a))
+
+/*
+ * Find the first occurrence of find in s, ignore case.
+ */
+char *
+strcasestr(const char *s, const char *find)
+{
+	char c, sc;
+	size_t len;
+
+	if ((c = *find++) != 0) {
+		c = tolower((unsigned char)c);
+		len = strlen(find);
+		do {
+			do {
+				if ((sc = *s++) == 0)
+					return (NULL);
+			} while ((char)tolower((unsigned char)sc) != c);
+		} while (strncasecmp(s, find, len) != 0);
+		s--;
+	}
+	return __UNCONST(s);
+}
+
+#endif

Added: vendor/mandoc/dist/compat_stringlist.c
===================================================================
--- vendor/mandoc/dist/compat_stringlist.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_stringlist.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,119 @@
+#include "config.h"
+
+#if HAVE_STRINGLIST
+
+int dummy;
+
+#else
+
+/*	$Id: compat_stringlist.c,v 1.6 2015/11/07 14:22:29 schwarze Exp $	*/
+/*
+ * Copyright (c) 1994 Christos Zoulas <christos at netbsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+#include "compat_stringlist.h"
+
+#define _SL_CHUNKSIZE	20
+
+/*
+ * sl_init(): Initialize a string list
+ */
+StringList *
+sl_init(void)
+{
+	StringList *sl;
+
+	sl = malloc(sizeof(StringList));
+	if (sl == NULL)
+		err(1, "stringlist");
+
+	sl->sl_cur = 0;
+	sl->sl_max = _SL_CHUNKSIZE;
+	sl->sl_str = reallocarray(NULL, sl->sl_max, sizeof(char *));
+	if (sl->sl_str == NULL)
+		err(1, "stringlist");
+	return sl;
+}
+
+
+/*
+ * sl_add(): Add an item to the string list
+ */
+int
+sl_add(StringList *sl, char *name)
+{
+	if (sl->sl_cur == sl->sl_max - 1) {
+		sl->sl_max += _SL_CHUNKSIZE;
+		sl->sl_str = reallocarray(sl->sl_str,
+		    sl->sl_max, sizeof(char *));
+		if (sl->sl_str == NULL)
+			return (-1);
+	}
+	sl->sl_str[sl->sl_cur++] = name;
+	return (0);
+}
+
+
+/*
+ * sl_free(): Free a stringlist
+ */
+void
+sl_free(StringList *sl, int all)
+{
+	size_t i;
+
+	if (sl == NULL)
+		return;
+	if (sl->sl_str) {
+		if (all)
+			for (i = 0; i < sl->sl_cur; i++)
+				free(sl->sl_str[i]);
+		free(sl->sl_str);
+	}
+	free(sl);
+}
+
+
+/*
+ * sl_find(): Find a name in the string list
+ */
+char *
+sl_find(StringList *sl, const char *name)
+{
+	size_t i;
+
+	for (i = 0; i < sl->sl_cur; i++)
+		if (strcmp(sl->sl_str[i], name) == 0)
+			return sl->sl_str[i];
+
+	return NULL;
+}
+
+#endif

Added: vendor/mandoc/dist/compat_stringlist.h
===================================================================
--- vendor/mandoc/dist/compat_stringlist.h	                        (rev 0)
+++ vendor/mandoc/dist/compat_stringlist.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+/*	$Id: compat_stringlist.h,v 1.4 2015/11/07 14:01:16 schwarze Exp $	*/
+/*	$NetBSD: stringlist.h,v 1.2 1997/01/17 06:11:36 lukem Exp $	*/
+
+/*
+ * Copyright (c) 1994 Christos Zoulas <christos at netbsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+
+/*
+ * Simple string list
+ */
+typedef struct _stringlist {
+	char	**sl_str;
+	size_t	  sl_max;
+	size_t	  sl_cur;
+} StringList;
+
+
+StringList *sl_init(void);
+int	 sl_add(StringList *, char *);
+void	 sl_free(StringList *, int);
+char	*sl_find(StringList *, const char *);

Added: vendor/mandoc/dist/compat_strlcat.c
===================================================================
--- vendor/mandoc/dist/compat_strlcat.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_strlcat.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,65 @@
+#include "config.h"
+
+#if HAVE_STRLCAT
+
+int dummy;
+
+#else
+
+/*	$OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+strlcat(char *dst, const char *src, size_t siz)
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+	size_t dlen;
+
+	/* Find the end of dst and adjust bytes left but don't go past end */
+	while (n-- != 0 && *d != '\0')
+		d++;
+	dlen = d - dst;
+	n = siz - dlen;
+
+	if (n == 0)
+		return(dlen + strlen(s));
+	while (*s != '\0') {
+		if (n != 1) {
+			*d++ = *s;
+			n--;
+		}
+		s++;
+	}
+	*d = '\0';
+
+	return(dlen + (s - src));	/* count does not include NUL */
+}
+
+#endif

Added: vendor/mandoc/dist/compat_strlcpy.c
===================================================================
--- vendor/mandoc/dist/compat_strlcpy.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_strlcpy.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,61 @@
+#include "config.h"
+
+#if HAVE_STRLCPY
+
+int dummy;
+
+#else
+
+/*	$OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0) {
+		while (--n != 0) {
+			if ((*d++ = *s++) == '\0')
+				break;
+		}
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
+
+#endif

Added: vendor/mandoc/dist/compat_strsep.c
===================================================================
--- vendor/mandoc/dist/compat_strsep.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_strsep.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,79 @@
+#include "config.h"
+
+#if HAVE_STRSEP
+
+int dummy;
+
+#else
+
+/*	$Id: compat_strsep.c,v 1.4 2014/12/11 09:05:01 schwarze Exp $	*/
+/*	$OpenBSD: strsep.c,v 1.7 2014/02/05 20:42:32 stsp Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Get next token from string *stringp, where tokens are possibly-empty
+ * strings separated by characters from delim.  
+ *
+ * Writes NULs into the string at *stringp to end tokens.
+ * delim need not remain constant from call to call.
+ * On return, *stringp points past the last NUL written (if there might
+ * be further tokens), or is NULL (if there are definitely no more tokens).
+ *
+ * If *stringp is NULL, strsep returns NULL.
+ */
+char *
+strsep(char **stringp, const char *delim)
+{
+	char *s;
+	const char *spanp;
+	int c, sc;
+	char *tok;
+
+	if ((s = *stringp) == NULL)
+		return (NULL);
+	for (tok = s;;) {
+		c = *s++;
+		spanp = delim;
+		do {
+			if ((sc = *spanp++) == c) {
+				if (c == 0)
+					s = NULL;
+				else
+					s[-1] = 0;
+				*stringp = s;
+				return (tok);
+			}
+		} while (sc != 0);
+	}
+	/* NOTREACHED */
+}
+
+#endif

Added: vendor/mandoc/dist/compat_strtonum.c
===================================================================
--- vendor/mandoc/dist/compat_strtonum.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_strtonum.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,76 @@
+#include "config.h"
+
+#if HAVE_STRTONUM
+
+int dummy;
+
+#else
+
+/*	$Id: compat_strtonum.c,v 1.1 2015/02/16 14:56:22 schwarze Exp $	*/
+/*	$OpenBSD: strtonum.c,v 1.7 2013/04/17 18:40:58 tedu Exp $	*/
+
+/*
+ * Copyright (c) 2004 Ted Unangst and Todd Miller
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#define	INVALID		1
+#define	TOOSMALL	2
+#define	TOOLARGE	3
+
+long long
+strtonum(const char *numstr, long long minval, long long maxval,
+    const char **errstrp)
+{
+	long long ll = 0;
+	int error = 0;
+	char *ep;
+	struct errval {
+		const char *errstr;
+		int err;
+	} ev[4] = {
+		{ NULL,		0 },
+		{ "invalid",	EINVAL },
+		{ "too small",	ERANGE },
+		{ "too large",	ERANGE },
+	};
+
+	ev[0].err = errno;
+	errno = 0;
+	if (minval > maxval) {
+		error = INVALID;
+	} else {
+		ll = strtoll(numstr, &ep, 10);
+		if (numstr == ep || *ep != '\0')
+			error = INVALID;
+		else if ((ll == LLONG_MIN && errno == ERANGE) || ll < minval)
+			error = TOOSMALL;
+		else if ((ll == LLONG_MAX && errno == ERANGE) || ll > maxval)
+			error = TOOLARGE;
+	}
+	if (errstrp != NULL)
+		*errstrp = ev[error].errstr;
+	errno = ev[error].err;
+	if (error)
+		ll = 0;
+
+	return (ll);
+}
+
+#endif /* !HAVE_STRTONUM */

Added: vendor/mandoc/dist/compat_vasprintf.c
===================================================================
--- vendor/mandoc/dist/compat_vasprintf.c	                        (rev 0)
+++ vendor/mandoc/dist/compat_vasprintf.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,56 @@
+#include "config.h"
+
+#if HAVE_VASPRINTF
+
+int dummy;
+
+#else
+
+/*	$Id: compat_vasprintf.c,v 1.3 2015/10/06 18:32:19 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * This fallback implementation is not efficient:
+ * It does the formatting twice.
+ * Short of fiddling with the unknown internals of the system's
+ * printf(3) or completely reimplementing printf(3), i can't think
+ * of another portable solution.
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+vasprintf(char **ret, const char *format, va_list ap)
+{
+	char	 buf[2];
+	va_list	 ap2;
+	int	 sz;
+
+	va_copy(ap2, ap);
+	sz = vsnprintf(buf, sizeof(buf), format, ap2);
+	va_end(ap2);
+
+	if (sz != -1 && (*ret = malloc(sz + 1)) != NULL) {
+		if (vsnprintf(*ret, sz + 1, format, ap) == sz)
+			return sz;
+		free(*ret);
+	}
+	*ret = NULL;
+	return -1;
+}
+
+#endif

Added: vendor/mandoc/dist/config.h
===================================================================
--- vendor/mandoc/dist/config.h	                        (rev 0)
+++ vendor/mandoc/dist/config.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,58 @@
+#ifdef __cplusplus
+#error "Do not use C++.  See the INSTALL file."
+#endif
+
+#if !defined(__GNUC__) || (__GNUC__ < 4)
+#define __attribute__(x)
+#endif
+
+#if defined(__linux__) || defined(__MINT__)
+#define _GNU_SOURCE	/* See test-*.c what needs this. */
+#endif
+
+#include <sys/types.h>
+#include <stdio.h>
+
+#define MAN_CONF_FILE "/etc/man.conf"
+#define MANPATH_BASE "/usr/share/man:/usr/X11R6/man"
+#define MANPATH_DEFAULT "/usr/share/man:/usr/X11R6/man:/usr/local/man"
+#define UTF8_LOCALE "en_US.UTF-8"
+#define HAVE_CMSG_XPG42 0
+#define HAVE_DIRENT_NAMLEN 1
+#define HAVE_ENDIAN 0
+#define HAVE_ERR 1
+#define HAVE_FTS 1
+#define HAVE_FTS_COMPARE_CONST 1
+#define HAVE_GETLINE 0
+#define HAVE_GETSUBOPT 1
+#define HAVE_ISBLANK 1
+#define HAVE_MKDTEMP 1
+#define HAVE_NTOHL 1
+#define HAVE_PLEDGE 0
+#define HAVE_PROGNAME 1
+#define HAVE_REALLOCARRAY 1
+#define HAVE_RECALLOCARRAY 0
+#define HAVE_REWB_BSD 1
+#define HAVE_REWB_SYSV 0
+#define HAVE_SANDBOX_INIT 0
+#define HAVE_STRCASESTR 1
+#define HAVE_STRINGLIST 0
+#define HAVE_STRLCAT 1
+#define HAVE_STRLCPY 1
+#define HAVE_STRPTIME 1
+#define HAVE_STRSEP 1
+#define HAVE_STRTONUM 1
+#define HAVE_SYS_ENDIAN 1
+#define HAVE_VASPRINTF 1
+#define HAVE_WCHAR 1
+#define HAVE_OHASH 0
+
+#define BINM_APROPOS "apropos"
+#define BINM_CATMAN "catman"
+#define BINM_MAKEWHATIS "makewhatis"
+#define BINM_MAN "man"
+#define BINM_SOELIM "soelim"
+#define BINM_WHATIS "whatis"
+
+extern	ssize_t	  getline(char **, size_t *, FILE *);
+extern	void	 *recallocarray(void *, size_t, size_t, size_t);

Added: vendor/mandoc/dist/config.log
===================================================================
--- vendor/mandoc/dist/config.log	                        (rev 0)
+++ vendor/mandoc/dist/config.log	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,221 @@
+configure.local: no (fully automatic configuration)
+
+dirent-namlen: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-dirent-namlen test-dirent-namlen.c 
+dirent-namlen: cc succeeded
+dirent-namlen: yes
+
+be32toh: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-be32toh test-be32toh.c 
+./test-be32toh.c:4:10: fatal error: 'endian.h' file not found
+#include <endian.h>
+         ^
+1 error generated.
+be32toh: cc failed with 1
+
+be32toh-DSYS_ENDIAN: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-be32toh test-be32toh.c -DSYS_ENDIAN
+be32toh-DSYS_ENDIAN: cc succeeded
+be32toh-DSYS_ENDIAN: yes
+
+EFTYPE: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-EFTYPE test-EFTYPE.c 
+EFTYPE: cc succeeded
+EFTYPE: yes
+
+err: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-err test-err.c 
+err: cc succeeded
+test-err: 1. warnx
+test-err: 2. warn: No error: 0
+test-err: 3. err: No error: 0
+err: yes
+
+getline: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-getline test-getline.c 
+./test-getline.c:12:9: error: implicit declaration of function 'getline' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
+        return getline(&line, &linesz, stdin) != -1;
+               ^
+1 error generated.
+getline: cc failed with 1
+
+getsubopt: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-getsubopt test-getsubopt.c 
+getsubopt: cc succeeded
+getsubopt: yes
+
+isblank: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-isblank test-isblank.c 
+isblank: cc succeeded
+isblank: yes
+
+mkdtemp: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-mkdtemp test-mkdtemp.c 
+mkdtemp: cc succeeded
+mkdtemp: yes
+
+ntohl: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-ntohl test-ntohl.c 
+ntohl: cc succeeded
+ntohl: yes
+
+O_DIRECTORY: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-O_DIRECTORY test-O_DIRECTORY.c 
+O_DIRECTORY: cc succeeded
+O_DIRECTORY: yes
+
+PATH_MAX: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-PATH_MAX test-PATH_MAX.c 
+PATH_MAX: cc succeeded
+PATH_MAX is defined to be 1024
+PATH_MAX: yes
+
+pledge: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-pledge test-pledge.c 
+./test-pledge.c:6:11: error: implicit declaration of function 'pledge' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
+        return !!pledge("stdio", NULL);
+                 ^
+1 error generated.
+pledge: cc failed with 1
+
+sandbox_init: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-sandbox_init test-sandbox_init.c 
+./test-sandbox_init.c:1:10: fatal error: 'sandbox.h' file not found
+#include <sandbox.h>
+         ^
+1 error generated.
+sandbox_init: cc failed with 1
+
+progname: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-progname test-progname.c 
+progname: cc succeeded
+progname: yes
+
+reallocarray: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-reallocarray test-reallocarray.c 
+reallocarray: cc succeeded
+reallocarray: yes
+
+recallocarray: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-recallocarray test-recallocarray.c 
+./test-recallocarray.c:10:10: error: implicit declaration of function 'recallocarray' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
+        return !recallocarray(p, 2, 3, 2);
+                ^
+./test-recallocarray.c:10:10: note: did you mean 'reallocarray'?
+/usr/include/stdlib.h:107:10: note: 'reallocarray' declared here
+void    *reallocarray(void *, size_t, size_t);
+         ^
+1 error generated.
+recallocarray: cc failed with 1
+
+rewb-bsd: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-rewb-bsd test-rewb-bsd.c 
+rewb-bsd: cc succeeded
+rewb-bsd: yes
+
+rewb-sysv: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-rewb-sysv test-rewb-sysv.c 
+rewb-sysv: cc succeeded
+rewb-sysv: execution failed with 2
+
+strcasestr: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-strcasestr test-strcasestr.c 
+strcasestr: cc succeeded
+strcasestr: yes
+
+stringlist: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-stringlist test-stringlist.c 
+./test-stringlist.c:26:26: error: use of undeclared identifier 'NULL'
+        if ((sl = sl_init()) == NULL)
+                                ^
+1 error generated.
+stringlist: cc failed with 1
+
+strlcat: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-strlcat test-strlcat.c 
+strlcat: cc succeeded
+strlcat: yes
+
+strlcpy: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-strlcpy test-strlcpy.c 
+strlcpy: cc succeeded
+strlcpy: yes
+
+strptime: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-strptime test-strptime.c 
+strptime: cc succeeded
+strptime: yes
+
+strsep: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-strsep test-strsep.c 
+strsep: cc succeeded
+strsep: yes
+
+strtonum: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-strtonum test-strtonum.c 
+strtonum: cc succeeded
+strtonum: yes
+
+vasprintf: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-vasprintf test-vasprintf.c 
+vasprintf: cc succeeded
+vasprintf: yes
+
+fts-DFTS_COMPARE_CONST: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-fts test-fts.c -DFTS_COMPARE_CONST
+fts-DFTS_COMPARE_CONST: cc succeeded
+fts-DFTS_COMPARE_CONST: yes
+
+UTF8_LOCALE: testing...
+UTF8_LOCALE=en_US.UTF-8
+
+wchar-DUTF8_LOCALE="en_US.UTF-8": testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-wchar test-wchar.c -DUTF8_LOCALE="en_US.UTF-8"
+wchar-DUTF8_LOCALE="en_US.UTF-8": cc succeeded
+*wchar-DUTF8_LOCALE="en_US.UTF-8": yes
+
+nanosleep: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-nanosleep test-nanosleep.c 
+nanosleep: cc succeeded
+nanosleep: yes
+
+ohash: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-ohash test-ohash.c 
+./test-ohash.c:34:4: error: no member named 'calloc' in 'struct ohash_info'
+        i.calloc = xcalloc;
+        ~ ^
+./test-ohash.c:35:4: error: no member named 'free' in 'struct ohash_info'; did you mean 'hfree'?
+        i.free = xfree;
+          ^~~~
+          hfree
+/usr/include/ohash.h:32:9: note: 'hfree' declared here
+        void (*hfree)(void *, size_t, void *);
+               ^
+./test-ohash.c:35:9: error: incompatible pointer types assigning to 'void (*)(void *, size_t, void *)' from 'void (void *, void *)' [-Werror,-Wincompatible-pointer-types]
+        i.free = xfree;
+               ^ ~~~~~
+3 errors generated.
+ohash: cc failed with 1
+
+ohash-lutil: testing...
+cc -g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter -Wno-unused -Werror -o test-ohash test-ohash.c -lutil
+./test-ohash.c:34:4: error: no member named 'calloc' in 'struct ohash_info'
+        i.calloc = xcalloc;
+        ~ ^
+./test-ohash.c:35:4: error: no member named 'free' in 'struct ohash_info'; did you mean 'hfree'?
+        i.free = xfree;
+          ^~~~
+          hfree
+/usr/include/ohash.h:32:9: note: 'hfree' declared here
+        void (*hfree)(void *, size_t, void *);
+               ^
+./test-ohash.c:35:9: error: incompatible pointer types assigning to 'void (*)(void *, size_t, void *)' from 'void (void *, void *)' [-Werror,-Wincompatible-pointer-types]
+        i.free = xfree;
+               ^ ~~~~~
+3 errors generated.
+ohash-lutil: cc failed with 1
+
+LDADD="    -lz"
+
+config.h: written
+Makefile.local: written

Added: vendor/mandoc/dist/configure
===================================================================
--- vendor/mandoc/dist/configure	                        (rev 0)
+++ vendor/mandoc/dist/configure	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,537 @@
+#!/bin/sh
+#
+# $Id: configure,v 1.64 2017/07/01 09:47:30 schwarze Exp $
+#
+# Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze at openbsd.org>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+set -e
+
+[ -w config.log ] && mv config.log config.log.old
+[ -w config.h   ] && mv config.h config.h.old
+
+# Output file descriptor usage:
+# 1 (stdout): config.h, Makefile.local
+# 2 (stderr): original stderr, usually to the console
+# 3: config.log
+
+exec 3> config.log
+echo "config.log: writing..."
+
+# --- default settings -------------------------------------------------
+# Initialize all variables here,
+# such that nothing can leak in from the environment.
+
+SOURCEDIR=`dirname "$0"`
+
+MANPATH_BASE="/usr/share/man:/usr/X11R6/man"
+MANPATH_DEFAULT="/usr/share/man:/usr/X11R6/man:/usr/local/man"
+OSNAME=
+UTF8_LOCALE=
+
+CC=`printf "all:\\n\\t at echo \\\$(CC)\\n" | env -i make -sf -`
+CFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings"
+CFLAGS="${CFLAGS} -Wno-unused-parameter"
+LDADD=
+LDFLAGS=
+LD_NANOSLEEP=
+LD_OHASH=
+LD_RECVMSG=
+STATIC="-static"
+
+BUILD_CGI=0
+BUILD_CATMAN=0
+INSTALL_LIBMANDOC=0
+
+HAVE_CMSG=
+HAVE_CMSG_XPG42=0
+HAVE_DIRENT_NAMLEN=
+HAVE_EFTYPE=
+HAVE_ENDIAN=
+HAVE_ERR=
+HAVE_FTS=
+HAVE_FTS_COMPARE_CONST=
+HAVE_GETLINE=
+HAVE_GETSUBOPT=
+HAVE_ISBLANK=
+HAVE_MKDTEMP=
+HAVE_NANOSLEEP=
+HAVE_NTOHL=
+HAVE_O_DIRECTORY=
+HAVE_OHASH=
+HAVE_PATH_MAX=
+HAVE_PLEDGE=
+HAVE_PROGNAME=
+HAVE_REALLOCARRAY=
+HAVE_RECALLOCARRAY=
+HAVE_RECVMSG=
+HAVE_REWB_BSD=
+HAVE_REWB_SYSV=
+HAVE_SANDBOX_INIT=
+HAVE_STRCASESTR=
+HAVE_STRINGLIST=
+HAVE_STRLCAT=
+HAVE_STRLCPY=
+HAVE_STRPTIME=
+HAVE_STRSEP=
+HAVE_STRTONUM=
+HAVE_SYS_ENDIAN=
+HAVE_VASPRINTF=
+HAVE_WCHAR=
+
+PREFIX="/usr/local"
+BINDIR=
+SBINDIR=
+BIN_FROM_SBIN=
+INCLUDEDIR=
+LIBDIR=
+MANDIR=
+HOMEBREWDIR=
+
+WWWPREFIX="/var/www"
+HTDOCDIR=
+CGIBINDIR=
+
+BINM_APROPOS="apropos"
+BINM_CATMAN="catman"
+BINM_MAKEWHATIS="makewhatis"
+BINM_MAN="man"
+BINM_SOELIM="soelim"
+BINM_WHATIS="whatis"
+MANM_MAN="man"
+MANM_MANCONF="man.conf"
+MANM_MDOC="mdoc"
+MANM_ROFF="roff"
+MANM_EQN="eqn"
+MANM_TBL="tbl"
+
+INSTALL="install"
+INSTALL_PROGRAM=
+INSTALL_LIB=
+INSTALL_MAN=
+INSTALL_DATA=
+LN="ln -f"
+
+# --- manual settings from configure.local -----------------------------
+
+if [ -r ./configure.local ]; then
+	echo "configure.local: reading..." 1>&2
+	echo "configure.local: reading..." 1>&3
+	cat ./configure.local 1>&3
+	. ./configure.local
+else
+	echo "configure.local: no (fully automatic configuration)" 1>&2
+	echo "configure.local: no (fully automatic configuration)" 1>&3
+fi
+echo 1>&3
+
+# --- tests for config.h  ----------------------------------------------
+
+COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
+
+# Check whether this HAVE_ setting is manually overridden.
+# If yes, use the override, if no, do not decide anything yet.
+# Arguments: lower-case test name, manual value
+ismanual() {
+	[ -z "${3}" ] && return 1
+	echo "${1}: manual (HAVE_${2}=${3})" 1>&2
+	echo "${1}: manual (HAVE_${2}=${3})" 1>&3
+	echo 1>&3
+	return 0
+}
+
+# Run a single autoconfiguration test.
+# In case of success, enable the feature.
+# In case of failure, do not decide anything yet.
+# Arguments: lower-case test name, upper-case test name, additional CFLAGS
+singletest() {
+	cat 1>&3 << __HEREDOC__
+${1}${3}: testing...
+${COMP} -o test-${1} test-${1}.c ${3}
+__HEREDOC__
+
+	if ${COMP} -o "test-${1}" "${SOURCEDIR}/test-${1}.c" ${3} 1>&3 2>&3
+	then
+		echo "${1}${3}: ${CC} succeeded" 1>&3
+	else
+		echo "${1}${3}: ${CC} failed with $?" 1>&3
+		echo 1>&3
+		return 1
+	fi
+
+	if ./test-${1} 1>&3 2>&3; then
+		echo "${1}${3}: yes" 1>&2
+		echo "${1}${3}: yes" 1>&3
+		echo 1>&3
+		eval HAVE_${2}=1
+		rm "test-${1}"
+		return 0
+	else
+		echo "${1}${3}: execution failed with $?" 1>&3
+		echo 1>&3
+		rm "test-${1}"
+		return 1
+	fi
+}
+
+# Run a complete autoconfiguration test, including the check for
+# a manual override and disabling the feature on failure.
+# Arguments: lower case name, upper case name, additional CFLAGS
+runtest() {
+	eval _manual=\${HAVE_${2}}
+	ismanual "${1}" "${2}" "${_manual}" && return 0
+	singletest "${1}" "${2}" "${3}" && return 0
+	echo "${1}${3}: no" 1>&2
+	eval HAVE_${2}=0
+	return 1
+}
+
+# Select a UTF-8 locale.
+get_locale() {
+	[ -n "${HAVE_WCHAR}" ] && [ "${HAVE_WCHAR}" -eq 0 ] && return 0
+	ismanual UTF8_LOCALE UTF8_LOCALE "$UTF8_LOCALE" && return 0
+	echo "UTF8_LOCALE: testing..." 1>&3
+	UTF8_LOCALE=`locale -a | grep -i '^en_US\.UTF-*8$' | head -n 1`
+	if [ -z "${UTF8_LOCALE}" ]; then
+		UTF8_LOCALE=`locale -a | grep -i '\.UTF-*8' | head -n 1`
+		[ -n "${UTF8_LOCALE}" ] || return 1
+	fi
+	echo "UTF8_LOCALE=${UTF8_LOCALE}" 1>&2
+	echo "UTF8_LOCALE=${UTF8_LOCALE}" 1>&3
+	echo 1>&3
+	return 0;
+}
+
+
+# --- library functions ---
+runtest dirent-namlen	DIRENT_NAMLEN	|| true
+runtest be32toh		ENDIAN		|| true
+runtest be32toh		SYS_ENDIAN	-DSYS_ENDIAN || true
+runtest EFTYPE		EFTYPE		|| true
+runtest err		ERR		|| true
+runtest getline		GETLINE		|| true
+runtest getsubopt	GETSUBOPT	|| true
+runtest isblank		ISBLANK		|| true
+runtest mkdtemp		MKDTEMP		|| true
+runtest ntohl		NTOHL		|| true
+runtest O_DIRECTORY	O_DIRECTORY	|| true
+runtest PATH_MAX	PATH_MAX	|| true
+runtest pledge		PLEDGE		|| true
+runtest sandbox_init	SANDBOX_INIT	|| true
+runtest progname	PROGNAME	|| true
+runtest reallocarray	REALLOCARRAY	|| true
+runtest recallocarray	RECALLOCARRAY	|| true
+runtest rewb-bsd	REWB_BSD	|| true
+runtest rewb-sysv	REWB_SYSV	|| true
+runtest strcasestr	STRCASESTR	|| true
+runtest stringlist	STRINGLIST	|| true
+runtest strlcat		STRLCAT		|| true
+runtest strlcpy		STRLCPY		|| true
+runtest strptime	STRPTIME	|| true
+runtest strsep		STRSEP		|| true
+runtest strtonum	STRTONUM	|| true
+runtest vasprintf	VASPRINTF	|| true
+
+if [ ${HAVE_ENDIAN} -eq 0 -a \
+     ${HAVE_SYS_ENDIAN} -eq 0 -a \
+     ${HAVE_NTOHL} -eq 0 ]; then
+	echo "FATAL: no endian conversion functions found" 1>&2
+	echo "FATAL: no endian conversion functions found" 1>&3
+	exit 1
+fi
+
+if ismanual fts FTS ${HAVE_FTS}; then
+	HAVE_FTS_COMPARE_CONST=0
+elif runtest fts FTS_COMPARE_CONST -DFTS_COMPARE_CONST; then
+	HAVE_FTS=1
+else
+	runtest fts FTS || true
+fi
+
+# --- wide character and locale support ---
+if get_locale; then
+	runtest wchar WCHAR -DUTF8_LOCALE=\"${UTF8_LOCALE}\" || true
+else
+	HAVE_WCHAR=0
+	echo "wchar: no (no UTF8_LOCALE)" 1>&2
+	echo "wchar: no (no UTF8_LOCALE)" 1>&3
+fi
+
+# --- nanosleep ---
+if [ -n "${LD_NANOSLEEP}" ]; then
+	runtest nanosleep NANOSLEEP "${LD_NANOSLEEP}" || true
+elif singletest nanosleep NANOSLEEP; then
+	:
+elif runtest nanosleep NANOSLEEP "-lrt"; then
+	LD_NANOSLEEP="-lrt"
+fi
+if [ "${HAVE_NANOSLEEP}" -eq 0 ]; then
+	echo "FATAL: nanosleep: no" 1>&2
+	echo "FATAL: nanosleep: no" 1>&3
+	exit 1
+fi
+
+if [ ${BUILD_CATMAN} -gt 0 ]; then
+	# --- recvmsg ---
+	if [ -n "${LD_RECVMSG}" ]; then
+		runtest recvmsg RECVMSG "${LD_RECVMSG}" || true
+	elif singletest recvmsg RECVMSG; then
+		:
+	elif runtest recvmsg RECVMSG "-lsocket"; then
+		LD_RECVMSG="-lsocket"
+	fi
+	if [ "${HAVE_RECVMSG}" -eq 0 ]; then
+		echo "FATAL: recvmsg: no" 1>&2
+		echo "FATAL: recvmsg: no" 1>&3
+		echo "Without recvmsg(2), you cannot BUILD_CATMAN." 1>&2
+		exit 1
+	fi
+
+	# --- cmsg ---
+	if singletest cmsg CMSG; then
+		:
+	elif runtest cmsg CMSG "-D_XPG4_2"; then
+		HAVE_CMSG_XPG42=1
+	fi
+	if [ "${HAVE_CMSG}" -eq 0 ]; then
+		echo "FATAL: cmsg: no" 1>&2
+		echo "FATAL: cmsg: no" 1>&3
+		echo "Without CMSG_FIRSTHDR(3), you cannot BUILD_CATMAN." 1>&2
+		exit 1
+	fi
+fi
+
+# --- ohash ---
+if ismanual ohash OHASH "${HAVE_OHASH}"; then
+	:
+elif [ -n "${LD_OHASH}" ]; then
+	runtest ohash OHASH "${LD_OHASH}" || true
+elif singletest ohash OHASH; then
+	:
+elif runtest ohash OHASH "-lutil"; then
+	LD_OHASH="-lutil"
+fi
+if [ "${HAVE_OHASH}" -eq 0 ]; then
+	LD_OHASH=
+fi
+
+# --- LDADD ---
+LDADD="${LDADD} ${LD_NANOSLEEP} ${LD_RECVMSG} ${LD_OHASH} -lz"
+echo "LDADD=\"${LDADD}\"" 1>&2
+echo "LDADD=\"${LDADD}\"" 1>&3
+echo 1>&3
+
+# --- write config.h ---
+
+exec > config.h
+
+cat << __HEREDOC__
+#ifdef __cplusplus
+#error "Do not use C++.  See the INSTALL file."
+#endif
+
+#if !defined(__GNUC__) || (__GNUC__ < 4)
+#define __attribute__(x)
+#endif
+
+#if defined(__linux__) || defined(__MINT__)
+#define _GNU_SOURCE	/* See test-*.c what needs this. */
+#endif
+
+__HEREDOC__
+
+[ ${HAVE_GETLINE} -eq 0 -o \
+  ${HAVE_REALLOCARRAY} -eq 0 -o ${HAVE_RECALLOCARRAY} -eq 0 -o \
+  ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 ] \
+	&& echo "#include <sys/types.h>"
+[ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
+[ ${HAVE_GETLINE} -eq 0 ] && echo "#include <stdio.h>"
+
+echo
+echo "#define MAN_CONF_FILE \"/etc/${MANM_MANCONF}\""
+echo "#define MANPATH_BASE \"${MANPATH_BASE}\""
+echo "#define MANPATH_DEFAULT \"${MANPATH_DEFAULT}\""
+[ -n "${OSNAME}" ] && echo "#define OSNAME \"${OSNAME}\""
+[ -n "${UTF8_LOCALE}" ] && echo "#define UTF8_LOCALE \"${UTF8_LOCALE}\""
+[ -n "${HOMEBREWDIR}" ] && echo "#define HOMEBREWDIR \"${HOMEBREWDIR}\""
+[ ${HAVE_EFTYPE} -eq 0 ] && echo "#define EFTYPE EINVAL"
+[ ${HAVE_O_DIRECTORY} -eq 0 ] && echo "#define O_DIRECTORY 0"
+[ ${HAVE_PATH_MAX} -eq 0 ] && echo "#define PATH_MAX 4096"
+if [ ${HAVE_ENDIAN} -eq 0 -a ${HAVE_SYS_ENDIAN} -eq 0 ]; then
+	echo "#define be32toh ntohl"
+	echo "#define htobe32 htonl"
+fi
+
+cat << __HEREDOC__
+#define HAVE_CMSG_XPG42 ${HAVE_CMSG_XPG42}
+#define HAVE_DIRENT_NAMLEN ${HAVE_DIRENT_NAMLEN}
+#define HAVE_ENDIAN ${HAVE_ENDIAN}
+#define HAVE_ERR ${HAVE_ERR}
+#define HAVE_FTS ${HAVE_FTS}
+#define HAVE_FTS_COMPARE_CONST ${HAVE_FTS_COMPARE_CONST}
+#define HAVE_GETLINE ${HAVE_GETLINE}
+#define HAVE_GETSUBOPT ${HAVE_GETSUBOPT}
+#define HAVE_ISBLANK ${HAVE_ISBLANK}
+#define HAVE_MKDTEMP ${HAVE_MKDTEMP}
+#define HAVE_NTOHL ${HAVE_NTOHL}
+#define HAVE_PLEDGE ${HAVE_PLEDGE}
+#define HAVE_PROGNAME ${HAVE_PROGNAME}
+#define HAVE_REALLOCARRAY ${HAVE_REALLOCARRAY}
+#define HAVE_RECALLOCARRAY ${HAVE_RECALLOCARRAY}
+#define HAVE_REWB_BSD ${HAVE_REWB_BSD}
+#define HAVE_REWB_SYSV ${HAVE_REWB_SYSV}
+#define HAVE_SANDBOX_INIT ${HAVE_SANDBOX_INIT}
+#define HAVE_STRCASESTR ${HAVE_STRCASESTR}
+#define HAVE_STRINGLIST ${HAVE_STRINGLIST}
+#define HAVE_STRLCAT ${HAVE_STRLCAT}
+#define HAVE_STRLCPY ${HAVE_STRLCPY}
+#define HAVE_STRPTIME ${HAVE_STRPTIME}
+#define HAVE_STRSEP ${HAVE_STRSEP}
+#define HAVE_STRTONUM ${HAVE_STRTONUM}
+#define HAVE_SYS_ENDIAN ${HAVE_SYS_ENDIAN}
+#define HAVE_VASPRINTF ${HAVE_VASPRINTF}
+#define HAVE_WCHAR ${HAVE_WCHAR}
+#define HAVE_OHASH ${HAVE_OHASH}
+
+#define BINM_APROPOS "${BINM_APROPOS}"
+#define BINM_CATMAN "${BINM_CATMAN}"
+#define BINM_MAKEWHATIS "${BINM_MAKEWHATIS}"
+#define BINM_MAN "${BINM_MAN}"
+#define BINM_SOELIM "${BINM_SOELIM}"
+#define BINM_WHATIS "${BINM_WHATIS}"
+
+__HEREDOC__
+
+if [ ${HAVE_ERR} -eq 0 ]; then
+	echo "extern	void	  err(int, const char *, ...);"
+	echo "extern	void	  errx(int, const char *, ...);"
+	echo "extern	void	  warn(const char *, ...);"
+	echo "extern	void	  warnx(const char *, ...);"
+fi
+
+[ ${HAVE_GETLINE} -eq 0 ] && \
+	echo "extern	ssize_t	  getline(char **, size_t *, FILE *);"
+
+[ ${HAVE_GETSUBOPT} -eq 0 ] && \
+	echo "extern	int	  getsubopt(char **, char * const *, char **);"
+
+[ ${HAVE_ISBLANK} -eq 0 ] && \
+	echo "extern	int	  isblank(int);"
+
+[ ${HAVE_MKDTEMP} -eq 0 ] && \
+	echo "extern	char	 *mkdtemp(char *);"
+
+if [ ${HAVE_PROGNAME} -eq 0 ]; then
+	echo "extern 	const char *getprogname(void);"
+	echo "extern	void	  setprogname(const char *);"
+fi
+
+[ ${HAVE_REALLOCARRAY} -eq 0 ] && \
+	echo "extern	void	 *reallocarray(void *, size_t, size_t);"
+
+[ ${HAVE_RECALLOCARRAY} -eq 0 ] && \
+	echo "extern	void	 *recallocarray(void *, size_t, size_t, size_t);"
+
+[ ${HAVE_STRCASESTR} -eq 0 ] && \
+	echo "extern	char	 *strcasestr(const char *, const char *);"
+
+[ ${HAVE_STRLCAT} -eq 0 ] && \
+	echo "extern	size_t	  strlcat(char *, const char *, size_t);"
+
+[ ${HAVE_STRLCPY} -eq 0 ] && \
+	echo "extern	size_t	  strlcpy(char *, const char *, size_t);"
+
+[ ${HAVE_STRSEP} -eq 0 ] && \
+	echo "extern	char	 *strsep(char **, const char *);"
+
+[ ${HAVE_STRTONUM} -eq 0 ] && \
+	echo "extern	long long strtonum(const char *, long long, long long, const char **);"
+
+[ ${HAVE_VASPRINTF} -eq 0 ] && \
+	echo "extern	int	  vasprintf(char **, const char *, va_list);"
+
+echo "config.h: written" 1>&2
+echo "config.h: written" 1>&3
+
+# --- tests for Makefile.local -----------------------------------------
+
+exec > Makefile.local
+
+[ -z "${BINDIR}"          ] && BINDIR="${PREFIX}/bin"
+[ -z "${SBINDIR}"         ] && SBINDIR="${PREFIX}/sbin"
+[ -z "${BIN_FROM_SBIN}"   ] && BIN_FROM_SBIN="../bin"
+[ -z "${INCLUDEDIR}"      ] && INCLUDEDIR="${PREFIX}/include/mandoc"
+[ -z "${LIBDIR}"          ] && LIBDIR="${PREFIX}/lib/mandoc"
+[ -z "${MANDIR}"          ] && MANDIR="${PREFIX}/man"
+
+[ -z "${HTDOCDIR}"        ] && HTDOCDIR="${WWWPREFIX}/htdocs"
+[ -z "${CGIBINDIR}"       ] && CGIBINDIR="${WWWPREFIX}/cgi-bin"
+
+[ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
+[ -z "${INSTALL_LIB}"     ] && INSTALL_LIB="${INSTALL} -m 0444"
+[ -z "${INSTALL_MAN}"     ] && INSTALL_MAN="${INSTALL} -m 0444"
+[ -z "${INSTALL_DATA}"    ] && INSTALL_DATA="${INSTALL} -m 0444"
+
+BUILD_TARGETS=
+[ ${BUILD_CGI} -gt 0 ] && BUILD_TARGETS="man.cgi"
+[ ${BUILD_CATMAN} -gt 0 ] && \
+	BUILD_TARGETS="${BUILD_TARGETS} mandocd catman"
+INSTALL_TARGETS=
+[ ${INSTALL_LIBMANDOC} -gt 0 ] && INSTALL_TARGETS="lib-install"
+[ ${BUILD_CGI} -gt 0 ] && INSTALL_TARGETS="${INSTALL_TARGETS} cgi-install"
+[ ${BUILD_CATMAN} -gt 0 ] && \
+	INSTALL_TARGETS="${INSTALL_TARGETS} catman-install"
+
+cat << __HEREDOC__
+BUILD_TARGETS	= ${BUILD_TARGETS}
+INSTALL_TARGETS	= ${INSTALL_TARGETS}
+CC		= ${CC}
+CFLAGS		= ${CFLAGS}
+LDADD		= ${LDADD}
+LDFLAGS		= ${LDFLAGS}
+STATIC		= ${STATIC}
+PREFIX		= ${PREFIX}
+BINDIR		= ${BINDIR}
+SBINDIR		= ${SBINDIR}
+BIN_FROM_SBIN	= ${BIN_FROM_SBIN}
+INCLUDEDIR	= ${INCLUDEDIR}
+LIBDIR		= ${LIBDIR}
+MANDIR		= ${MANDIR}
+WWWPREFIX	= ${WWWPREFIX}
+HTDOCDIR	= ${HTDOCDIR}
+CGIBINDIR	= ${CGIBINDIR}
+BINM_APROPOS	= ${BINM_APROPOS}
+BINM_CATMAN	= ${BINM_CATMAN}
+BINM_MAKEWHATIS	= ${BINM_MAKEWHATIS}
+BINM_MAN	= ${BINM_MAN}
+BINM_SOELIM	= ${BINM_SOELIM}
+BINM_WHATIS	= ${BINM_WHATIS}
+MANM_MAN	= ${MANM_MAN}
+MANM_MANCONF	= ${MANM_MANCONF}
+MANM_MDOC	= ${MANM_MDOC}
+MANM_ROFF	= ${MANM_ROFF}
+MANM_EQN	= ${MANM_EQN}
+MANM_TBL	= ${MANM_TBL}
+INSTALL		= ${INSTALL}
+INSTALL_PROGRAM	= ${INSTALL_PROGRAM}
+INSTALL_LIB	= ${INSTALL_LIB}
+INSTALL_MAN	= ${INSTALL_MAN}
+INSTALL_DATA	= ${INSTALL_DATA}
+LN		= ${LN}
+__HEREDOC__
+
+echo "Makefile.local: written" 1>&2
+echo "Makefile.local: written" 1>&3
+
+exit 0

Added: vendor/mandoc/dist/configure.local.example
===================================================================
--- vendor/mandoc/dist/configure.local.example	                        (rev 0)
+++ vendor/mandoc/dist/configure.local.example	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,312 @@
+# $Id: configure.local.example,v 1.33 2017/07/20 16:24:53 schwarze Exp $
+#
+# Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze at openbsd.org>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# For all settings documented in this file, there are reasonable
+# defaults and/or the ./configure script attempts autodetection.
+# Consequently, you only need to create a file ./configure.local
+# and put any of these settings into it if ./configure autodetection
+# fails or if you want to make different choices for other reasons.
+
+# If autodetection fails, please tell <tech at mandoc.bsd.lv>.
+
+# We recommend that you write ./configure.local from scratch and
+# only put the lines there you need.  This file contains examples.
+# It is not intended as a template to be copied as a whole.
+
+# --- user settings relevant for all builds ----------------------------
+
+# For -Tutf8 and -Tlocale operation, mandoc(1) requires <locale.h>
+# providing setlocale(3) and <wchar.h> providing wcwidth(3) and
+# putwchar(3) with a wchar_t storing UCS-4 values.  Theoretically,
+# the latter should be tested with the __STDC_ISO_10646__ feature
+# macro.  In practice, many <wchar.h> headers do not provide that
+# macro even though they treat wchar_t as UCS-4.  So the automatic
+# test only checks that wchar_t is wide enough, that is, at least
+# four bytes.
+
+# The following line forces multi-byte support.
+# If your C library does not treat wchar_t as UCS-4, the UTF-8 output
+# mode will print garbage.
+
+HAVE_WCHAR=1
+
+# The following line disables multi-byte support.
+# The output modes -Tutf8 and -Tlocale will be the same as -Tascii.
+
+HAVE_WCHAR=0
+
+# For -Tutf8 mode, mandoc needs to set an arbitrary locale having
+# a UTF-8 character set.  If autodetection of a suitable locale
+# fails or selects an undesirable locale, you can manually choose
+# the locale for -Tutf8 mode:
+
+UTF8_LOCALE=en_US.UTF-8
+
+# When man(1) or apropos(1) is called without -m and -M options,
+# MANPATH is not set in the environment, and man.conf(5) is not
+# available, manuals are searched for in the following directory
+# trees by default.
+
+MANPATH_DEFAULT="/usr/share/man:/usr/X11R6/man:/usr/local/man"
+
+# Validation of cross references with mandoc -Tlint only looks
+# for manual pages in the following directories:
+
+MANPATH_BASE="/usr/share/man:/usr/X11R6/man"
+
+# In manual pages written in the mdoc(7) language, the operating system
+# version is displayed in the page footer line.  If an operating system
+# is specified as an argument to the .Os macro, that is always used.
+# If the .Os macro has no argument and an operation system is specified
+# with the mandoc(1) -Ios= command line option, that is used.
+# Otherwise, the uname(3) library function is called at runtime to find
+# the name of the operating system.
+# If you do not want uname(3) to be called but instead want a fixed
+# string to be used, use the following line:
+
+OSNAME="OpenBSD 6.0"
+
+# The following installation directories are used.
+# It is possible to set only one or a few of these variables,
+# there is no need to copy the whole block.
+# Even if you set PREFIX to something else, the other variables
+# pick it up without copying them all over.
+
+PREFIX="/usr/local"
+BINDIR="${PREFIX}/bin"
+SBINDIR="${PREFIX}/sbin"
+MANDIR="${PREFIX}/man"
+
+# If BINDIR and SBINDIR are not subdirectories of the same parent
+# directory or if the basename(1) of BINDIR differs from "bin",
+# the relative path from SBINDIR to BINDIR is also needed.
+# The default is:
+
+BIN_FROM_SBIN="../bin"
+
+# Some distributions may want to avoid naming conflicts
+# with the configuration files of other man(1) implementations.
+# This changes the name of the installed section 5 manual page as well.
+MANM_MANCONF="mandoc.conf"	# default is "man.conf"
+
+# Some distributions may want to avoid naming conflicts among manuals.
+# If you want to change the names of installed section 7 manual pages,
+# the following alternative names are suggested.
+# The suffix ".7" will automatically be appended.
+# It is possible to set only one or a few of these variables,
+# there is no need to copy the whole block.
+
+MANM_MAN="mandoc_man"		# default is "man"
+MANM_MDOC="mandoc_mdoc"		# default is "mdoc"
+MANM_ROFF="mandoc_roff"		# default is "roff"
+MANM_EQN="mandoc_eqn"		# default is "eqn"
+MANM_TBL="mandoc_tbl"		# default is "tbl"
+
+# Some distributions may want to avoid naming conflicts with
+# other man(1), apropos(1), makewhatis(8), or soelim(1) utilities.
+# If you want to change the names of binary programs,
+# the following alternative names are suggested.
+# Using different names is possible as well.
+# This changes the names of the installed section 1 and section 8
+# manual pages as well.
+# It is possible to set only one or two of these variables,
+# there is no need to copy the whole block.
+
+BINM_MAN=mman			# default is "man"
+BINM_APROPOS=mapropos		# default is "apropos"
+BINM_WHATIS=mwhatis		# default is "whatis"
+BINM_MAKEWHATIS=mandocdb	# default is "makewhatis"
+BINM_SOELIM=msoelim		# default is "soelim"
+
+# Some distributions do not want hardlinks
+# between installed binary programs.
+# Set the following variable to use symbolic links instead.
+# It is also used for links between manual pages.
+# It is only used by the install* targets.
+# When using this, DESTDIR must be empty or an absolute path.
+
+LN="ln -sf"			# default is "ln -f"
+
+# Before falling back to the bundled version of the ohash(3) hashing
+# library, autoconfiguration tries the following linker flag to
+# link against your system version.  If you do have ohash(3) on
+# your system but it needs different linker flags, set the following
+# variable to specify the required linker flags.
+
+LD_OHASH="-lutil"
+
+# When library autodetection decides to use -L/usr/local/lib,
+# -I/usr/local/include is automatically added to CFLAGS.
+# If you manually set LD_OHASH to something including -L/usr/local/lib,
+# chances are you will also need the following line:
+
+CFLAGS="${CFLAGS} -I/usr/local/include"
+
+# Some platforms may need an additional linker flag for nanosleep(2).
+# If none is needed or it is -lrt, it is autodetected.
+# Otherwise, set the following variable.
+
+LD_NANOSLEEP="-lrt"
+
+# Some platforms may need an additional linker flag for recvmsg(2).
+# If none is needed or it is -lsocket, it is autodetected.
+# Otherwise, set the following variable.
+
+LD_RECVMSG="-lsocket"
+
+# Some platforms might need additional linker flags to link against
+# libmandoc that are not autodetected, though no such cases are
+# currently known.
+
+LDADD="-lm"
+
+# Some systems may want to set additional linker flags for all the
+# binaries, not only for those using libmandoc, for example for
+# hardening options.
+
+LDFLAGS="-Wl,-z,relro"
+
+# It is possible to change the utility program used for installation
+# and the modes files are installed with.  The defaults are:
+
+INSTALL="install"
+INSTALL_PROGRAM="${INSTALL} -m 0555"
+INSTALL_LIB="${INSTALL} -m 0444"
+INSTALL_MAN="${INSTALL} -m 0444"
+INSTALL_DATA="${INSTALL} -m 0444"
+
+# When using the "homebrew" package manager on Mac OS X, the actual
+# manuals are located in a so-called "cellar" and only symlinked
+# into the manual trees.  To allow mandoc to follow such symlinks,
+# you have to specify the physical location of the cellar as returned
+# by realpath(3), for example:
+
+PREFIX="/usr/local"
+HOMEBREWDIR="${PREFIX}/Cellar"
+
+# --- user settings for the mandoc(3) library --------------------------
+
+# By default, libmandoc.a is not installed.  It is almost never needed
+# because there is almost no non-mandoc software out there using this
+# library.  The one notable exception is NetBSD apropos(1).
+# So, when building for the NetBSD base system - but not for NetBSD
+# ports nor for pkgsrc! - you may want the following:
+
+INSTALL_LIBMANDOC=1
+
+# The following settings are only used when INSTALL_LIBMANDOC is set.
+
+INCLUDEDIR="${PREFIX}/include/mandoc"
+LIBDIR="${PREFIX}/lib/mandoc"
+
+# --- user settings related to man.cgi ---------------------------------
+
+# By default, building man.cgi(8) is disabled.  To enable it, copy
+# cgi.h.example to cgi.h, edit it, and use the following line.
+
+BUILD_CGI=1
+
+# The remaining settings in this section are only relevant if BUILD_CGI
+# is enabled.  Otherwise, they have no effect either way.
+
+# By default, man.cgi(8) is linked statically.
+# Some systems do not support static linking, for example Mac OS X.
+# In that case, use the following line:
+
+STATIC=
+
+# Some systems, for example Linux, require -pthread for static linking:
+
+STATIC="-static -pthread"
+
+# Some directories.
+# This works just like PREFIX, see above.
+
+WWWPREFIX="/var/www"
+HTDOCDIR="${WWWPREFIX}/htdocs"
+CGIBINDIR="${WWWPREFIX}/cgi-bin"
+
+# --- user settings related to catman ----------------------------------
+
+# By default, building mandocd(8) and catman(8) is disabled.
+# To enable it, use the following line.
+# It does not work on SunOS 5.10 because there is no mkdirat(2)
+# nor on SunOS 5.9 which also lacks CMSG_LEN(3) and CMSG_SPACE(3).
+
+BUILD_CATMAN=1
+
+# Install catman(8) with a different name.
+# See BINM_MAN above for details of how this works.
+
+BINM_CATMAN=mcatman		# default is "catman"
+
+# --- settings that rarely need to be touched --------------------------
+
+# Do not set these variables unless you really need to.
+
+# You can manually override the compiler to be used.
+# But that's rarely useful because ./configure asks your make(1)
+# which compiler to use, and that answer will hardly be wrong.
+
+CC=cc
+
+# IBM AIX may need:
+
+CC=xlc
+
+# The default compiler flags are:
+
+CFLAGS="-g -W -Wall -Wstrict-prototypes -Wno-unused-parameter -Wwrite-strings"
+
+# IBM AIX xlc does not support -W; in that case, please use:
+
+CFLAGS="-g"
+
+# In rare cases, it may be required to skip individual automatic tests.
+# Each of the following variables can be set to 0 (test will not be run
+# and will be regarded as failed) or 1 (test will not be run and will
+# be regarded as successful).
+
+HAVE_DIRENT_NAMLEN=0
+HAVE_ENDIAN=0
+HAVE_EFTYPE=0
+HAVE_ERR=0
+HAVE_FTS=0  # Setting this implies HAVE_FTS_COMPARE_CONST=0.
+HAVE_FTS_COMPARE_CONST=0  # Setting this implies HAVE_FTS=1.
+HAVE_GETLINE=0
+HAVE_GETSUBOPT=0
+HAVE_ISBLANK=0
+HAVE_MKDTEMP=0
+HAVE_NTOHL=0
+HAVE_O_DIRECTORY=0
+HAVE_OHASH=0
+HAVE_PATH_MAX=0
+HAVE_PLEDGE=0
+HAVE_PROGNAME=0
+HAVE_REALLOCARRAY=0
+HAVE_RECALLOCARRAY=0
+HAVE_REWB_BSD=0
+HAVE_REWB_SYSV=0
+HAVE_STRCASESTR=0
+HAVE_STRINGLIST=0
+HAVE_STRLCAT=0
+HAVE_STRLCPY=0
+HAVE_STRPTIME=0
+HAVE_STRSEP=0
+HAVE_STRTONUM=0
+HAVE_SYS_ENDIAN=0
+HAVE_VASPRINTF=0
+HAVE_WCHAR=0

Added: vendor/mandoc/dist/dba.c
===================================================================
--- vendor/mandoc/dist/dba.c	                        (rev 0)
+++ vendor/mandoc/dist/dba.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,508 @@
+/*	$Id: dba.c,v 1.10 2017/02/17 14:43:54 schwarze Exp $ */
+/*
+ * Copyright (c) 2016, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Allocation-based version of the mandoc database, for read-write access.
+ * The interface is defined in "dba.h".
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#if HAVE_ENDIAN
+#include <endian.h>
+#elif HAVE_SYS_ENDIAN
+#include <sys/endian.h>
+#elif HAVE_NTOHL
+#include <arpa/inet.h>
+#endif
+#include <errno.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "mansearch.h"
+#include "dba_write.h"
+#include "dba_array.h"
+#include "dba.h"
+
+struct macro_entry {
+	struct dba_array	*pages;
+	char			 value[];
+};
+
+static void	*prepend(const char *, char);
+static void	 dba_pages_write(struct dba_array *);
+static int	 compare_names(const void *, const void *);
+static int	 compare_strings(const void *, const void *);
+
+static struct macro_entry
+		*get_macro_entry(struct ohash *, const char *, int32_t);
+static void	 dba_macros_write(struct dba_array *);
+static void	 dba_macro_write(struct ohash *);
+static int	 compare_entries(const void *, const void *);
+
+
+/*** top-level functions **********************************************/
+
+struct dba *
+dba_new(int32_t npages)
+{
+	struct dba	*dba;
+	struct ohash	*macro;
+	int32_t		 im;
+
+	dba = mandoc_malloc(sizeof(*dba));
+	dba->pages = dba_array_new(npages, DBA_GROW);
+	dba->macros = dba_array_new(MACRO_MAX, 0);
+	for (im = 0; im < MACRO_MAX; im++) {
+		macro = mandoc_malloc(sizeof(*macro));
+		mandoc_ohash_init(macro, 4,
+		    offsetof(struct macro_entry, value));
+		dba_array_set(dba->macros, im, macro);
+	}
+	return dba;
+}
+
+void
+dba_free(struct dba *dba)
+{
+	struct dba_array	*page;
+	struct ohash		*macro;
+	struct macro_entry	*entry;
+	unsigned int		 slot;
+
+	dba_array_FOREACH(dba->macros, macro) {
+		for (entry = ohash_first(macro, &slot); entry != NULL;
+		     entry = ohash_next(macro, &slot)) {
+			dba_array_free(entry->pages);
+			free(entry);
+		}
+		ohash_delete(macro);
+		free(macro);
+	}
+	dba_array_free(dba->macros);
+
+	dba_array_undel(dba->pages);
+	dba_array_FOREACH(dba->pages, page) {
+		dba_array_free(dba_array_get(page, DBP_NAME));
+		dba_array_free(dba_array_get(page, DBP_SECT));
+		dba_array_free(dba_array_get(page, DBP_ARCH));
+		free(dba_array_get(page, DBP_DESC));
+		dba_array_free(dba_array_get(page, DBP_FILE));
+		dba_array_free(page);
+	}
+	dba_array_free(dba->pages);
+
+	free(dba);
+}
+
+/*
+ * Write the complete mandoc database to disk; the format is:
+ * - One integer each for magic and version.
+ * - One pointer each to the macros table and to the final magic.
+ * - The pages table.
+ * - The macros table.
+ * - And at the very end, the magic integer again.
+ */
+int
+dba_write(const char *fname, struct dba *dba)
+{
+	int	 save_errno;
+	int32_t	 pos_end, pos_macros, pos_macros_ptr;
+
+	if (dba_open(fname) == -1)
+		return -1;
+	dba_int_write(MANDOCDB_MAGIC);
+	dba_int_write(MANDOCDB_VERSION);
+	pos_macros_ptr = dba_skip(1, 2);
+	dba_pages_write(dba->pages);
+	pos_macros = dba_tell();
+	dba_macros_write(dba->macros);
+	pos_end = dba_tell();
+	dba_int_write(MANDOCDB_MAGIC);
+	dba_seek(pos_macros_ptr);
+	dba_int_write(pos_macros);
+	dba_int_write(pos_end);
+	if (dba_close() == -1) {
+		save_errno = errno;
+		unlink(fname);
+		errno = save_errno;
+		return -1;
+	}
+	return 0;
+}
+
+
+/*** functions for handling pages *************************************/
+
+/*
+ * Create a new page and append it to the pages table.
+ */
+struct dba_array *
+dba_page_new(struct dba_array *pages, const char *arch,
+    const char *desc, const char *file, enum form form)
+{
+	struct dba_array *page, *entry;
+
+	page = dba_array_new(DBP_MAX, 0);
+	entry = dba_array_new(1, DBA_STR | DBA_GROW);
+	dba_array_add(page, entry);
+	entry = dba_array_new(1, DBA_STR | DBA_GROW);
+	dba_array_add(page, entry);
+	if (arch != NULL && *arch != '\0') {
+		entry = dba_array_new(1, DBA_STR | DBA_GROW);
+		dba_array_add(entry, (void *)arch);
+	} else
+		entry = NULL;
+	dba_array_add(page, entry);
+	dba_array_add(page, mandoc_strdup(desc));
+	entry = dba_array_new(1, DBA_STR | DBA_GROW);
+	dba_array_add(entry, prepend(file, form));
+	dba_array_add(page, entry);
+	dba_array_add(pages, page);
+	return page;
+}
+
+/*
+ * Add a section, architecture, or file name to an existing page.
+ * Passing the NULL pointer for the architecture makes the page MI.
+ * In that case, any earlier or later architectures are ignored.
+ */
+void
+dba_page_add(struct dba_array *page, int32_t ie, const char *str)
+{
+	struct dba_array	*entries;
+	char			*entry;
+
+	entries = dba_array_get(page, ie);
+	if (ie == DBP_ARCH) {
+		if (entries == NULL)
+			return;
+		if (str == NULL || *str == '\0') {
+			dba_array_free(entries);
+			dba_array_set(page, DBP_ARCH, NULL);
+			return;
+		}
+	}
+	if (*str == '\0')
+		return;
+	dba_array_FOREACH(entries, entry) {
+		if (ie == DBP_FILE && *entry < ' ')
+			entry++;
+		if (strcmp(entry, str) == 0)
+			return;
+	}
+	dba_array_add(entries, (void *)str);
+}
+
+/*
+ * Add an additional name to an existing page.
+ */
+void
+dba_page_alias(struct dba_array *page, const char *name, uint64_t mask)
+{
+	struct dba_array	*entries;
+	char			*entry;
+	char			 maskbyte;
+
+	if (*name == '\0')
+		return;
+	maskbyte = mask & NAME_MASK;
+	entries = dba_array_get(page, DBP_NAME);
+	dba_array_FOREACH(entries, entry) {
+		if (strcmp(entry + 1, name) == 0) {
+			*entry |= maskbyte;
+			return;
+		}
+	}
+	dba_array_add(entries, prepend(name, maskbyte));
+}
+
+/*
+ * Return a pointer to a temporary copy of instr with inbyte prepended.
+ */
+static void *
+prepend(const char *instr, char inbyte)
+{
+	static char	*outstr = NULL;
+	static size_t	 outlen = 0;
+	size_t		 newlen;
+
+	newlen = strlen(instr) + 1;
+	if (newlen > outlen) {
+		outstr = mandoc_realloc(outstr, newlen + 1);
+		outlen = newlen;
+	}
+	*outstr = inbyte;
+	memcpy(outstr + 1, instr, newlen);
+	return outstr;
+}
+
+/*
+ * Write the pages table to disk; the format is:
+ * - One integer containing the number of pages.
+ * - For each page, five pointers to the names, sections,
+ *   architectures, description, and file names of the page.
+ *   MI pages write 0 instead of the architecture pointer.
+ * - One list each for names, sections, architectures, descriptions and
+ *   file names.  The description for each page ends with a NUL byte.
+ *   For all the other lists, each string ends with a NUL byte,
+ *   and the last string for a page ends with two NUL bytes.
+ * - To assure alignment of following integers,
+ *   the end is padded with NUL bytes up to a multiple of four bytes.
+ */
+static void
+dba_pages_write(struct dba_array *pages)
+{
+	struct dba_array	*page, *entry;
+	int32_t			 pos_pages, pos_end;
+
+	pos_pages = dba_array_writelen(pages, 5);
+	dba_array_FOREACH(pages, page) {
+		dba_array_setpos(page, DBP_NAME, dba_tell());
+		entry = dba_array_get(page, DBP_NAME);
+		dba_array_sort(entry, compare_names);
+		dba_array_writelst(entry);
+	}
+	dba_array_FOREACH(pages, page) {
+		dba_array_setpos(page, DBP_SECT, dba_tell());
+		entry = dba_array_get(page, DBP_SECT);
+		dba_array_sort(entry, compare_strings);
+		dba_array_writelst(entry);
+	}
+	dba_array_FOREACH(pages, page) {
+		if ((entry = dba_array_get(page, DBP_ARCH)) != NULL) {
+			dba_array_setpos(page, DBP_ARCH, dba_tell());
+			dba_array_sort(entry, compare_strings);
+			dba_array_writelst(entry);
+		} else
+			dba_array_setpos(page, DBP_ARCH, 0);
+	}
+	dba_array_FOREACH(pages, page) {
+		dba_array_setpos(page, DBP_DESC, dba_tell());
+		dba_str_write(dba_array_get(page, DBP_DESC));
+	}
+	dba_array_FOREACH(pages, page) {
+		dba_array_setpos(page, DBP_FILE, dba_tell());
+		dba_array_writelst(dba_array_get(page, DBP_FILE));
+	}
+	pos_end = dba_align();
+	dba_seek(pos_pages);
+	dba_array_FOREACH(pages, page)
+		dba_array_writepos(page);
+	dba_seek(pos_end);
+}
+
+static int
+compare_names(const void *vp1, const void *vp2)
+{
+	const char	*cp1, *cp2;
+	int		 diff;
+
+	cp1 = *(const char * const *)vp1;
+	cp2 = *(const char * const *)vp2;
+	return (diff = *cp2 - *cp1) ? diff :
+	    strcasecmp(cp1 + 1, cp2 + 1);
+}
+
+static int
+compare_strings(const void *vp1, const void *vp2)
+{
+	const char	*cp1, *cp2;
+
+	cp1 = *(const char * const *)vp1;
+	cp2 = *(const char * const *)vp2;
+	return strcmp(cp1, cp2);
+}
+
+/*** functions for handling macros ************************************/
+
+/*
+ * In the hash table for a single macro, look up an entry by
+ * the macro value or add an empty one if it doesn't exist yet.
+ */
+static struct macro_entry *
+get_macro_entry(struct ohash *macro, const char *value, int32_t np)
+{
+	struct macro_entry	*entry;
+	size_t			 len;
+	unsigned int		 slot;
+
+	slot = ohash_qlookup(macro, value);
+	if ((entry = ohash_find(macro, slot)) == NULL) {
+		len = strlen(value) + 1;
+		entry = mandoc_malloc(sizeof(*entry) + len);
+		memcpy(&entry->value, value, len);
+		entry->pages = dba_array_new(np, DBA_GROW);
+		ohash_insert(macro, slot, entry);
+	}
+	return entry;
+}
+
+/*
+ * In addition to get_macro_entry(), add multiple page references,
+ * converting them from the on-disk format (byte offsets in the file)
+ * to page pointers in memory.
+ */
+void
+dba_macro_new(struct dba *dba, int32_t im, const char *value,
+    const int32_t *pp)
+{
+	struct macro_entry	*entry;
+	const int32_t		*ip;
+	int32_t			 np;
+
+	np = 0;
+	for (ip = pp; *ip; ip++)
+		np++;
+
+	entry = get_macro_entry(dba_array_get(dba->macros, im), value, np);
+	for (ip = pp; *ip; ip++)
+		dba_array_add(entry->pages, dba_array_get(dba->pages,
+		    be32toh(*ip) / 5 / sizeof(*ip) - 1));
+}
+
+/*
+ * In addition to get_macro_entry(), add one page reference,
+ * directly taking the in-memory page pointer as an argument.
+ */
+void
+dba_macro_add(struct dba_array *macros, int32_t im, const char *value,
+    struct dba_array *page)
+{
+	struct macro_entry	*entry;
+
+	if (*value == '\0')
+		return;
+	entry = get_macro_entry(dba_array_get(macros, im), value, 1);
+	dba_array_add(entry->pages, page);
+}
+
+/*
+ * Write the macros table to disk; the format is:
+ * - The number of macro tables (actually, MACRO_MAX).
+ * - That number of pointers to the individual macro tables.
+ * - The individual macro tables.
+ */
+static void
+dba_macros_write(struct dba_array *macros)
+{
+	struct ohash		*macro;
+	int32_t			 im, pos_macros, pos_end;
+
+	pos_macros = dba_array_writelen(macros, 1);
+	im = 0;
+	dba_array_FOREACH(macros, macro) {
+		dba_array_setpos(macros, im++, dba_tell());
+		dba_macro_write(macro);
+	}
+	pos_end = dba_tell();
+	dba_seek(pos_macros);
+	dba_array_writepos(macros);
+	dba_seek(pos_end);
+}
+
+/*
+ * Write one individual macro table to disk; the format is:
+ * - The number of entries in the table.
+ * - For each entry, two pointers, the first one to the value
+ *   and the second one to the list of pages.
+ * - A list of values, each ending in a NUL byte.
+ * - To assure alignment of following integers,
+ *   padding with NUL bytes up to a multiple of four bytes.
+ * - A list of pointers to pages, each list ending in a 0 integer.
+ */
+static void
+dba_macro_write(struct ohash *macro)
+{
+	struct macro_entry	**entries, *entry;
+	struct dba_array	 *page;
+	int32_t			 *kpos, *dpos;
+	unsigned int		  ie, ne, slot;
+	int			  use;
+	int32_t			  addr, pos_macro, pos_end;
+
+	/* Temporary storage for filtering and sorting. */
+
+	ne = ohash_entries(macro);
+	entries = mandoc_reallocarray(NULL, ne, sizeof(*entries));
+	kpos = mandoc_reallocarray(NULL, ne, sizeof(*kpos));
+	dpos = mandoc_reallocarray(NULL, ne, sizeof(*dpos));
+
+	/* Build a list of non-empty entries and sort it. */
+
+	ne = 0;
+	for (entry = ohash_first(macro, &slot); entry != NULL;
+	     entry = ohash_next(macro, &slot)) {
+		use = 0;
+		dba_array_FOREACH(entry->pages, page)
+			if (dba_array_getpos(page))
+				use = 1;
+		if (use)
+			entries[ne++] = entry;
+	}
+	qsort(entries, ne, sizeof(*entries), compare_entries);
+
+	/* Number of entries, and space for the pointer pairs. */
+
+	dba_int_write(ne);
+	pos_macro = dba_skip(2, ne);
+
+	/* String table. */
+
+	for (ie = 0; ie < ne; ie++) {
+		kpos[ie] = dba_tell();
+		dba_str_write(entries[ie]->value);
+	}
+	dba_align();
+
+	/* Pages table. */
+
+	for (ie = 0; ie < ne; ie++) {
+		dpos[ie] = dba_tell();
+		dba_array_FOREACH(entries[ie]->pages, page)
+			if ((addr = dba_array_getpos(page)))
+				dba_int_write(addr);
+		dba_int_write(0);
+	}
+	pos_end = dba_tell();
+
+	/* Fill in the pointer pairs. */
+
+	dba_seek(pos_macro);
+	for (ie = 0; ie < ne; ie++) {
+		dba_int_write(kpos[ie]);
+		dba_int_write(dpos[ie]);
+	}
+	dba_seek(pos_end);
+
+	free(entries);
+	free(kpos);
+	free(dpos);
+}
+
+static int
+compare_entries(const void *vp1, const void *vp2)
+{
+	const struct macro_entry *ep1, *ep2;
+
+	ep1 = *(const struct macro_entry * const *)vp1;
+	ep2 = *(const struct macro_entry * const *)vp2;
+	return strcmp(ep1->value, ep2->value);
+}

Added: vendor/mandoc/dist/dba.h
===================================================================
--- vendor/mandoc/dist/dba.h	                        (rev 0)
+++ vendor/mandoc/dist/dba.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,50 @@
+/*	$Id: dba.h,v 1.2 2016/08/17 20:46:56 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Public interface of the allocation-based version
+ * of the mandoc database, for read-write access.
+ * To be used by dba.c, dba_read.c, and makewhatis(8).
+ */
+
+#define	DBP_NAME	0
+#define	DBP_SECT	1
+#define	DBP_ARCH	2
+#define	DBP_DESC	3
+#define	DBP_FILE	4
+#define	DBP_MAX		5
+
+struct dba_array;
+
+struct dba {
+	struct dba_array	*pages;
+	struct dba_array	*macros;
+};
+
+
+struct dba	*dba_new(int32_t);
+void		 dba_free(struct dba *);
+struct dba	*dba_read(const char *);
+int		 dba_write(const char *, struct dba *);
+
+struct dba_array *dba_page_new(struct dba_array *, const char *,
+			const char *, const char *, enum form);
+void		 dba_page_add(struct dba_array *, int32_t, const char *);
+void		 dba_page_alias(struct dba_array *, const char *, uint64_t);
+
+void		 dba_macro_new(struct dba *, int32_t,
+			const char *, const int32_t *);
+void		 dba_macro_add(struct dba_array *, int32_t,
+			const char *, struct dba_array *);

Added: vendor/mandoc/dist/dba_array.c
===================================================================
--- vendor/mandoc/dist/dba_array.c	                        (rev 0)
+++ vendor/mandoc/dist/dba_array.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,188 @@
+/*	$Id: dba_array.c,v 1.1 2016/07/19 21:31:55 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Allocation-based arrays for the mandoc database, for read-write access.
+ * The interface is defined in "dba_array.h".
+ */
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "dba_write.h"
+#include "dba_array.h"
+
+struct dba_array {
+	void	**ep;	/* Array of entries. */
+	int32_t	 *em;	/* Array of map positions. */
+	int	  flags;
+	int32_t	  ea;	/* Entries allocated. */
+	int32_t	  eu;	/* Entries used (including deleted). */
+	int32_t	  ed;	/* Entries deleted. */
+	int32_t	  ec;	/* Currently active entry. */
+	int32_t	  pos;  /* Map position of this array. */
+};
+
+
+struct dba_array *
+dba_array_new(int32_t ea, int flags)
+{
+	struct dba_array	*array;
+
+	assert(ea > 0);
+	array = mandoc_malloc(sizeof(*array));
+	array->ep = mandoc_reallocarray(NULL, ea, sizeof(*array->ep));
+	array->em = mandoc_reallocarray(NULL, ea, sizeof(*array->em));
+	array->ea = ea;
+	array->eu = 0;
+	array->ed = 0;
+	array->ec = 0;
+	array->flags = flags;
+	array->pos = 0;
+	return array;
+}
+
+void
+dba_array_free(struct dba_array *array)
+{
+	int32_t	 ie;
+
+	if (array == NULL)
+		return;
+	if (array->flags & DBA_STR)
+		for (ie = 0; ie < array->eu; ie++)
+			free(array->ep[ie]);
+	free(array->ep);
+	free(array->em);
+	free(array);
+}
+
+void
+dba_array_set(struct dba_array *array, int32_t ie, void *entry)
+{
+	assert(ie >= 0);
+	assert(ie < array->ea);
+	assert(ie <= array->eu);
+	if (ie == array->eu)
+		array->eu++;
+	if (array->flags & DBA_STR)
+		entry = mandoc_strdup(entry);
+	array->ep[ie] = entry;
+	array->em[ie] = 0;
+}
+
+void
+dba_array_add(struct dba_array *array, void *entry)
+{
+	if (array->eu == array->ea) {
+		assert(array->flags & DBA_GROW);
+		array->ep = mandoc_reallocarray(array->ep,
+		    2, sizeof(*array->ep) * array->ea);
+		array->em = mandoc_reallocarray(array->em,
+		    2, sizeof(*array->em) * array->ea);
+		array->ea *= 2;
+	}
+	dba_array_set(array, array->eu, entry);
+}
+
+void *
+dba_array_get(struct dba_array *array, int32_t ie)
+{
+	if (ie < 0 || ie >= array->eu || array->em[ie] == -1)
+		return NULL;
+	return array->ep[ie];
+}
+
+void
+dba_array_start(struct dba_array *array)
+{
+	array->ec = array->eu;
+}
+
+void *
+dba_array_next(struct dba_array *array)
+{
+	if (array->ec < array->eu)
+		array->ec++;
+	else
+		array->ec = 0;
+	while (array->ec < array->eu && array->em[array->ec] == -1)
+		array->ec++;
+	return array->ec < array->eu ? array->ep[array->ec] : NULL;
+}
+
+void
+dba_array_del(struct dba_array *array)
+{
+	if (array->ec < array->eu && array->em[array->ec] != -1) {
+		array->em[array->ec] = -1;
+		array->ed++;
+	}
+}
+
+void
+dba_array_undel(struct dba_array *array)
+{
+	memset(array->em, 0, sizeof(*array->em) * array->eu);
+}
+
+void
+dba_array_setpos(struct dba_array *array, int32_t ie, int32_t pos)
+{
+	array->em[ie] = pos;
+}
+
+int32_t
+dba_array_getpos(struct dba_array *array)
+{
+	return array->pos;
+}
+
+void
+dba_array_sort(struct dba_array *array, dba_compare_func func)
+{
+	assert(array->ed == 0);
+	qsort(array->ep, array->eu, sizeof(*array->ep), func);
+}
+
+int32_t
+dba_array_writelen(struct dba_array *array, int32_t nmemb)
+{
+	dba_int_write(array->eu - array->ed);
+	return dba_skip(nmemb, array->eu - array->ed);
+}
+
+void
+dba_array_writepos(struct dba_array *array)
+{
+	int32_t	 ie;
+
+	array->pos = dba_tell();
+	for (ie = 0; ie < array->eu; ie++)
+		if (array->em[ie] != -1)
+			dba_int_write(array->em[ie]);
+}
+
+void
+dba_array_writelst(struct dba_array *array)
+{
+	const char	*str;
+
+	dba_array_FOREACH(array, str)
+		dba_str_write(str);
+	dba_char_write('\0');
+}

Added: vendor/mandoc/dist/dba_array.h
===================================================================
--- vendor/mandoc/dist/dba_array.h	                        (rev 0)
+++ vendor/mandoc/dist/dba_array.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,47 @@
+/*	$Id: dba_array.h,v 1.1 2016/07/19 21:31:55 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Public interface for allocation-based arrays
+ * for the mandoc database, for read-write access.
+ * To be used by dba*.c and by makewhatis(8).
+ */
+
+struct dba_array;
+
+#define	DBA_STR		0x01	/* Map contains strings, not pointers. */
+#define	DBA_GROW	0x02	/* Allow the array to grow. */
+
+#define	dba_array_FOREACH(a, e) \
+	dba_array_start(a); \
+	while (((e) = dba_array_next(a)) != NULL)
+
+typedef int dba_compare_func(const void *, const void *);
+
+struct dba_array *dba_array_new(int32_t, int);
+void		 dba_array_free(struct dba_array *);
+void		 dba_array_set(struct dba_array *, int32_t, void *);
+void		 dba_array_add(struct dba_array *, void *);
+void		*dba_array_get(struct dba_array *, int32_t);
+void		 dba_array_start(struct dba_array *);
+void		*dba_array_next(struct dba_array *);
+void		 dba_array_del(struct dba_array *);
+void		 dba_array_undel(struct dba_array *);
+void		 dba_array_setpos(struct dba_array *, int32_t, int32_t);
+int32_t		 dba_array_getpos(struct dba_array *);
+void		 dba_array_sort(struct dba_array *, dba_compare_func);
+int32_t		 dba_array_writelen(struct dba_array *, int32_t);
+void		 dba_array_writepos(struct dba_array *);
+void		 dba_array_writelst(struct dba_array *);

Added: vendor/mandoc/dist/dba_read.c
===================================================================
--- vendor/mandoc/dist/dba_read.c	                        (rev 0)
+++ vendor/mandoc/dist/dba_read.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,72 @@
+/*	$Id: dba_read.c,v 1.4 2016/08/17 20:46:56 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Function to read the mandoc database from disk into RAM,
+ * such that data can be added or removed.
+ * The interface is defined in "dba.h".
+ * This file is seperate from dba.c because this also uses "dbm.h".
+ */
+#include <regex.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mansearch.h"
+#include "dba_array.h"
+#include "dba.h"
+#include "dbm.h"
+
+
+struct dba *
+dba_read(const char *fname)
+{
+	struct dba		*dba;
+	struct dba_array	*page;
+	struct dbm_page		*pdata;
+	struct dbm_macro	*mdata;
+	const char		*cp;
+	int32_t			 im, ip, iv, npages;
+
+	if (dbm_open(fname) == -1)
+		return NULL;
+	npages = dbm_page_count();
+	dba = dba_new(npages < 128 ? 128 : npages);
+	for (ip = 0; ip < npages; ip++) {
+		pdata = dbm_page_get(ip);
+		page = dba_page_new(dba->pages, pdata->arch,
+		    pdata->desc, pdata->file + 1, *pdata->file);
+		for (cp = pdata->name; *cp != '\0'; cp = strchr(cp, '\0') + 1)
+			dba_page_add(page, DBP_NAME, cp);
+		for (cp = pdata->sect; *cp != '\0'; cp = strchr(cp, '\0') + 1)
+			dba_page_add(page, DBP_SECT, cp);
+		if ((cp = pdata->arch) != NULL)
+			while (*(cp = strchr(cp, '\0') + 1) != '\0')
+				dba_page_add(page, DBP_ARCH, cp);
+		cp = pdata->file;
+		while (*(cp = strchr(cp, '\0') + 1) != '\0')
+			dba_page_add(page, DBP_FILE, cp);
+	}
+	for (im = 0; im < MACRO_MAX; im++) {
+		for (iv = 0; iv < dbm_macro_count(im); iv++) {
+			mdata = dbm_macro_get(im, iv);
+			dba_macro_new(dba, im, mdata->value, mdata->pp);
+		}
+	}
+	dbm_close();
+	return dba;
+}

Added: vendor/mandoc/dist/dba_write.c
===================================================================
--- vendor/mandoc/dist/dba_write.c	                        (rev 0)
+++ vendor/mandoc/dist/dba_write.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,127 @@
+/*	$Id: dba_write.c,v 1.3 2016/08/05 23:15:08 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Low-level functions for serializing allocation-based data to disk.
+ * The interface is defined in "dba_write.h".
+ */
+#include "config.h"
+
+#include <assert.h>
+#if HAVE_ENDIAN
+#include <endian.h>
+#elif HAVE_SYS_ENDIAN
+#include <sys/endian.h>
+#elif HAVE_NTOHL
+#include <arpa/inet.h>
+#endif
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "dba_write.h"
+
+static FILE	*ofp;
+
+
+int
+dba_open(const char *fname)
+{
+	ofp = fopen(fname, "w");
+	return ofp == NULL ? -1 : 0;
+}
+
+int
+dba_close(void)
+{
+	return fclose(ofp) == EOF ? -1 : 0;
+}
+
+int32_t
+dba_tell(void)
+{
+	long		 pos;
+
+	if ((pos = ftell(ofp)) == -1)
+		err(1, "ftell");
+	if (pos >= INT32_MAX) {
+		errno = EOVERFLOW;
+		err(1, "ftell = %ld", pos);
+	}
+	return pos;
+}
+
+void
+dba_seek(int32_t pos)
+{
+	if (fseek(ofp, pos, SEEK_SET) == -1)
+		err(1, "fseek(%d)", pos);
+}
+
+int32_t
+dba_align(void)
+{
+	int32_t		 pos;
+
+	pos = dba_tell();
+	while (pos & 3) {
+		dba_char_write('\0');
+		pos++;
+	}
+	return pos;
+}
+
+int32_t
+dba_skip(int32_t nmemb, int32_t sz)
+{
+	const int32_t	 out[5] = {0, 0, 0, 0, 0};
+	int32_t		 i, pos;
+
+	assert(sz >= 0);
+	assert(nmemb > 0);
+	assert(nmemb <= 5);
+	pos = dba_tell();
+	for (i = 0; i < sz; i++)
+		if (nmemb - fwrite(&out, sizeof(out[0]), nmemb, ofp))
+			err(1, "fwrite");
+	return pos;
+}
+
+void
+dba_char_write(int c)
+{
+	if (putc(c, ofp) == EOF)
+		err(1, "fputc");
+}
+
+void
+dba_str_write(const char *str)
+{
+	if (fputs(str, ofp) == EOF)
+		err(1, "fputs");
+	dba_char_write('\0');
+}
+
+void
+dba_int_write(int32_t i)
+{
+	i = htobe32(i);
+	if (fwrite(&i, sizeof(i), 1, ofp) != 1)
+		err(1, "fwrite");
+}

Added: vendor/mandoc/dist/dba_write.h
===================================================================
--- vendor/mandoc/dist/dba_write.h	                        (rev 0)
+++ vendor/mandoc/dist/dba_write.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+/*	$Id: dba_write.h,v 1.1 2016/07/19 21:31:55 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Internal interface to low-level functions
+ * for serializing allocation-based data to disk.
+ * For use by dba_array.c and dba.c only.
+ */
+
+int	 dba_open(const char *);
+int	 dba_close(void);
+int32_t	 dba_tell(void);
+void	 dba_seek(int32_t);
+int32_t	 dba_align(void);
+int32_t	 dba_skip(int32_t, int32_t);
+void	 dba_char_write(int);
+void	 dba_str_write(const char *);
+void	 dba_int_write(int32_t);

Added: vendor/mandoc/dist/dbm.c
===================================================================
--- vendor/mandoc/dist/dbm.c	                        (rev 0)
+++ vendor/mandoc/dist/dbm.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,480 @@
+/*	$Id: dbm.c,v 1.5 2016/10/18 22:27:25 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Map-based version of the mandoc database, for read-only access.
+ * The interface is defined in "dbm.h".
+ */
+#include "config.h"
+
+#include <assert.h>
+#if HAVE_ENDIAN
+#include <endian.h>
+#elif HAVE_SYS_ENDIAN
+#include <sys/endian.h>
+#elif HAVE_NTOHL
+#include <arpa/inet.h>
+#endif
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <regex.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mansearch.h"
+#include "dbm_map.h"
+#include "dbm.h"
+
+struct macro {
+	int32_t	value;
+	int32_t	pages;
+};
+
+struct page {
+	int32_t	name;
+	int32_t	sect;
+	int32_t	arch;
+	int32_t	desc;
+	int32_t	file;
+};
+
+enum iter {
+	ITER_NONE = 0,
+	ITER_NAME,
+	ITER_SECT,
+	ITER_ARCH,
+	ITER_DESC,
+	ITER_MACRO
+};
+
+static struct macro	*macros[MACRO_MAX];
+static int32_t		 nvals[MACRO_MAX];
+static struct page	*pages;
+static int32_t		 npages;
+static enum iter	 iteration;
+
+static struct dbm_res	 page_bytitle(enum iter, const struct dbm_match *);
+static struct dbm_res	 page_byarch(const struct dbm_match *);
+static struct dbm_res	 page_bymacro(int32_t, const struct dbm_match *);
+static char		*macro_bypage(int32_t, int32_t);
+
+
+/*** top level functions **********************************************/
+
+/*
+ * Open a disk-based mandoc database for read-only access.
+ * Map the pages and macros[] arrays.
+ * Return 0 on success.  Return -1 and set errno on failure.
+ */
+int
+dbm_open(const char *fname)
+{
+	const int32_t	*mp, *ep;
+	int32_t		 im;
+
+	if (dbm_map(fname) == -1)
+		return -1;
+
+	if ((npages = be32toh(*dbm_getint(4))) < 0) {
+		warnx("dbm_open(%s): Invalid number of pages: %d",
+		    fname, npages);
+		goto fail;
+	}
+	pages = (struct page *)dbm_getint(5);
+
+	if ((mp = dbm_get(*dbm_getint(2))) == NULL) {
+		warnx("dbm_open(%s): Invalid offset of macros array", fname);
+		goto fail;
+	}
+	if (be32toh(*mp) != MACRO_MAX) {
+		warnx("dbm_open(%s): Invalid number of macros: %d",
+		    fname, be32toh(*mp));
+		goto fail;
+	}
+	for (im = 0; im < MACRO_MAX; im++) {
+		if ((ep = dbm_get(*++mp)) == NULL) {
+			warnx("dbm_open(%s): Invalid offset of macro %d",
+			    fname, im);
+			goto fail;
+		}
+		nvals[im] = be32toh(*ep);
+		macros[im] = (struct macro *)++ep;
+	}
+	return 0;
+
+fail:
+	dbm_unmap();
+	errno = EFTYPE;
+	return -1;
+}
+
+void
+dbm_close(void)
+{
+	dbm_unmap();
+}
+
+
+/*** functions for handling pages *************************************/
+
+int32_t
+dbm_page_count(void)
+{
+	return npages;
+}
+
+/*
+ * Give the caller pointers to the data for one manual page.
+ */
+struct dbm_page *
+dbm_page_get(int32_t ip)
+{
+	static struct dbm_page	 res;
+
+	assert(ip >= 0);
+	assert(ip < npages);
+	res.name = dbm_get(pages[ip].name);
+	if (res.name == NULL)
+		res.name = "(NULL)";
+	res.sect = dbm_get(pages[ip].sect);
+	if (res.sect == NULL)
+		res.sect = "(NULL)";
+	res.arch = pages[ip].arch ? dbm_get(pages[ip].arch) : NULL;
+	res.desc = dbm_get(pages[ip].desc);
+	if (res.desc == NULL)
+		res.desc = "(NULL)";
+	res.file = dbm_get(pages[ip].file);
+	if (res.file == NULL)
+		res.file = " (NULL)";
+	res.addr = dbm_addr(pages + ip);
+	return &res;
+}
+
+/*
+ * Functions to start filtered iterations over manual pages.
+ */
+void
+dbm_page_byname(const struct dbm_match *match)
+{
+	assert(match != NULL);
+	page_bytitle(ITER_NAME, match);
+}
+
+void
+dbm_page_bysect(const struct dbm_match *match)
+{
+	assert(match != NULL);
+	page_bytitle(ITER_SECT, match);
+}
+
+void
+dbm_page_byarch(const struct dbm_match *match)
+{
+	assert(match != NULL);
+	page_byarch(match);
+}
+
+void
+dbm_page_bydesc(const struct dbm_match *match)
+{
+	assert(match != NULL);
+	page_bytitle(ITER_DESC, match);
+}
+
+void
+dbm_page_bymacro(int32_t im, const struct dbm_match *match)
+{
+	assert(im >= 0);
+	assert(im < MACRO_MAX);
+	assert(match != NULL);
+	page_bymacro(im, match);
+}
+
+/*
+ * Return the number of the next manual page in the current iteration.
+ */
+struct dbm_res
+dbm_page_next(void)
+{
+	struct dbm_res			 res = {-1, 0};
+
+	switch(iteration) {
+	case ITER_NONE:
+		return res;
+	case ITER_ARCH:
+		return page_byarch(NULL);
+	case ITER_MACRO:
+		return page_bymacro(0, NULL);
+	default:
+		return page_bytitle(iteration, NULL);
+	}
+}
+
+/*
+ * Functions implementing the iteration over manual pages.
+ */
+static struct dbm_res
+page_bytitle(enum iter arg_iter, const struct dbm_match *arg_match)
+{
+	static const struct dbm_match	*match;
+	static const char		*cp;	
+	static int32_t			 ip;
+	struct dbm_res			 res = {-1, 0};
+
+	assert(arg_iter == ITER_NAME || arg_iter == ITER_DESC ||
+	    arg_iter == ITER_SECT);
+
+	/* Initialize for a new iteration. */
+
+	if (arg_match != NULL) {
+		iteration = arg_iter;
+		match = arg_match;
+		switch (iteration) {
+		case ITER_NAME:
+			cp = dbm_get(pages[0].name);
+			break;
+		case ITER_SECT:
+			cp = dbm_get(pages[0].sect);
+			break;
+		case ITER_DESC:
+			cp = dbm_get(pages[0].desc);
+			break;
+		default:
+			abort();
+		}
+		if (cp == NULL) {
+			iteration = ITER_NONE;
+			match = NULL;
+			cp = NULL;
+			ip = npages;
+		} else
+			ip = 0;
+		return res;
+	}
+
+	/* Search for a name. */
+
+	while (ip < npages) {
+		if (iteration == ITER_NAME)
+			cp++;
+		if (dbm_match(match, cp))
+			break;
+		cp = strchr(cp, '\0') + 1;
+		if (iteration == ITER_DESC)
+			ip++;
+		else if (*cp == '\0') {
+			cp++;
+			ip++;
+		}
+	}
+
+	/* Reached the end without a match. */
+
+	if (ip == npages) {
+		iteration = ITER_NONE;
+		match = NULL;
+		cp = NULL;
+		return res;
+	}
+
+	/* Found a match; save the quality for later retrieval. */
+
+	res.page = ip;
+	res.bits = iteration == ITER_NAME ? cp[-1] : 0;
+
+	/* Skip the remaining names of this page. */
+
+	if (++ip < npages) {
+		do {
+			cp++;
+		} while (cp[-1] != '\0' ||
+		    (iteration != ITER_DESC && cp[-2] != '\0'));
+	}
+	return res;
+}
+
+static struct dbm_res
+page_byarch(const struct dbm_match *arg_match)
+{
+	static const struct dbm_match	*match;
+	struct dbm_res			 res = {-1, 0};
+	static int32_t			 ip;
+	const char			*cp;	
+
+	/* Initialize for a new iteration. */
+
+	if (arg_match != NULL) {
+		iteration = ITER_ARCH;
+		match = arg_match;
+		ip = 0;
+		return res;
+	}
+
+	/* Search for an architecture. */
+
+	for ( ; ip < npages; ip++)
+		if (pages[ip].arch)
+			for (cp = dbm_get(pages[ip].arch);
+			    *cp != '\0';
+			    cp = strchr(cp, '\0') + 1)
+				if (dbm_match(match, cp)) {
+					res.page = ip++;
+					return res;
+				}
+
+	/* Reached the end without a match. */
+
+	iteration = ITER_NONE;
+	match = NULL;
+	return res;
+}
+
+static struct dbm_res
+page_bymacro(int32_t arg_im, const struct dbm_match *arg_match)
+{
+	static const struct dbm_match	*match;
+	static const int32_t		*pp;
+	static const char		*cp;
+	static int32_t			 im, iv;
+	struct dbm_res			 res = {-1, 0};
+
+	assert(im >= 0);
+	assert(im < MACRO_MAX);
+
+	/* Initialize for a new iteration. */
+
+	if (arg_match != NULL) {
+		iteration = ITER_MACRO;
+		match = arg_match;
+		im = arg_im;
+		cp = nvals[im] ? dbm_get(macros[im]->value) : NULL;
+		pp = NULL;
+		iv = -1;
+		return res;
+	}
+	if (iteration != ITER_MACRO)
+		return res;
+
+	/* Find the next matching macro value. */
+
+	while (pp == NULL || *pp == 0) {
+		if (++iv == nvals[im]) {
+			iteration = ITER_NONE;
+			return res;
+		}
+		if (iv)
+			cp = strchr(cp, '\0') + 1;
+		if (dbm_match(match, cp))
+			pp = dbm_get(macros[im][iv].pages);
+	}
+
+	/* Found a matching page. */
+
+	res.page = (struct page *)dbm_get(*pp++) - pages;
+	return res;
+}
+
+
+/*** functions for handling macros ************************************/
+
+int32_t
+dbm_macro_count(int32_t im)
+{
+	assert(im >= 0);
+	assert(im < MACRO_MAX);
+	return nvals[im];
+}
+
+struct dbm_macro *
+dbm_macro_get(int32_t im, int32_t iv)
+{
+	static struct dbm_macro macro;
+
+	assert(im >= 0);
+	assert(im < MACRO_MAX);
+	assert(iv >= 0);
+	assert(iv < nvals[im]);
+	macro.value = dbm_get(macros[im][iv].value);
+	macro.pp = dbm_get(macros[im][iv].pages);
+	return ¯o;
+}
+
+/*
+ * Filtered iteration over macro entries.
+ */
+void
+dbm_macro_bypage(int32_t im, int32_t ip)
+{
+	assert(im >= 0);
+	assert(im < MACRO_MAX);
+	assert(ip != 0);
+	macro_bypage(im, ip);
+}
+
+char *
+dbm_macro_next(void)
+{
+	return macro_bypage(MACRO_MAX, 0);
+}
+
+static char *
+macro_bypage(int32_t arg_im, int32_t arg_ip)
+{
+	static const int32_t	*pp;
+	static int32_t		 im, ip, iv;
+
+	/* Initialize for a new iteration. */
+
+	if (arg_im < MACRO_MAX && arg_ip != 0) {
+		im = arg_im;
+		ip = arg_ip;
+		pp = dbm_get(macros[im]->pages);
+		iv = 0;
+		return NULL;
+	}
+	if (im >= MACRO_MAX)
+		return NULL;
+
+	/* Search for the next value. */
+
+	while (iv < nvals[im]) {
+		if (*pp == ip)
+			break;
+		if (*pp == 0)
+			iv++;
+		pp++;
+	}
+
+	/* Reached the end without a match. */
+
+	if (iv == nvals[im]) {
+		im = MACRO_MAX;
+		ip = 0;
+		pp = NULL;
+		return NULL;
+	}
+
+	/* Found a match; skip the remaining pages of this entry. */
+
+	if (++iv < nvals[im])
+		while (*pp++ != 0)
+			continue;
+
+	return dbm_get(macros[im][iv - 1].value);
+}

Added: vendor/mandoc/dist/dbm.h
===================================================================
--- vendor/mandoc/dist/dbm.h	                        (rev 0)
+++ vendor/mandoc/dist/dbm.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,68 @@
+/*	$Id: dbm.h,v 1.1 2016/07/19 21:31:55 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Public interface for the map-based version
+ * of the mandoc database, for read-only access.
+ * To be used by dbm*.c, dba_read.c, and man(1) and apropos(1).
+ */
+
+enum dbm_mtype {
+	DBM_EXACT = 0,
+	DBM_SUB,
+	DBM_REGEX
+};
+
+struct dbm_match {
+	regex_t		*re;
+	const char	*str;
+	enum dbm_mtype	 type;
+};
+
+struct dbm_res {
+	int32_t		 page;
+	int32_t		 bits;
+};
+
+struct dbm_page {
+	const char	*name;
+	const char	*sect;
+	const char	*arch;
+	const char	*desc;
+	const char	*file;
+	int32_t		 addr;
+};
+
+struct dbm_macro {
+	const char	*value;
+	const int32_t	*pp;
+};
+
+int		 dbm_open(const char *);
+void		 dbm_close(void);
+
+int32_t		 dbm_page_count(void);
+struct dbm_page	*dbm_page_get(int32_t);
+void		 dbm_page_byname(const struct dbm_match *);
+void		 dbm_page_bysect(const struct dbm_match *);
+void		 dbm_page_byarch(const struct dbm_match *);
+void		 dbm_page_bydesc(const struct dbm_match *);
+void		 dbm_page_bymacro(int32_t, const struct dbm_match *);
+struct dbm_res	 dbm_page_next(void);
+
+int32_t		 dbm_macro_count(int32_t);
+struct dbm_macro *dbm_macro_get(int32_t, int32_t);
+void		 dbm_macro_bypage(int32_t, int32_t);
+char		*dbm_macro_next(void);

Added: vendor/mandoc/dist/dbm_map.c
===================================================================
--- vendor/mandoc/dist/dbm_map.c	                        (rev 0)
+++ vendor/mandoc/dist/dbm_map.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,194 @@
+/*	$Id: dbm_map.c,v 1.8 2017/02/17 14:43:54 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Low-level routines for the map-based version
+ * of the mandoc database, for read-only access.
+ * The interface is defined in "dbm_map.h".
+ */
+#include "config.h"
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#if HAVE_ENDIAN
+#include <endian.h>
+#elif HAVE_SYS_ENDIAN
+#include <sys/endian.h>
+#elif HAVE_NTOHL
+#include <arpa/inet.h>
+#endif
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <regex.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mansearch.h"
+#include "dbm_map.h"
+#include "dbm.h"
+
+static struct stat	 st;
+static char		*dbm_base;
+static int		 ifd;
+static int32_t		 max_offset;
+
+/*
+ * Open a disk-based database for read-only access.
+ * Validate the file format as far as it is not mandoc-specific.
+ * Return 0 on success.  Return -1 and set errno on failure.
+ */
+int
+dbm_map(const char *fname)
+{
+	int		 save_errno;
+	const int32_t	*magic;
+
+	if ((ifd = open(fname, O_RDONLY)) == -1)
+		return -1;
+	if (fstat(ifd, &st) == -1)
+		goto fail;
+	if (st.st_size < 5) {
+		warnx("dbm_map(%s): File too short", fname);
+		errno = EFTYPE;
+		goto fail;
+	}
+	if (st.st_size > INT32_MAX) {
+		errno = EFBIG;
+		goto fail;
+	}
+	if ((dbm_base = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED,
+	    ifd, 0)) == MAP_FAILED)
+		goto fail;
+	magic = dbm_getint(0);
+	if (be32toh(*magic) != MANDOCDB_MAGIC) {
+		if (strncmp(dbm_base, "SQLite format 3", 15))
+			warnx("dbm_map(%s): "
+			    "Bad initial magic %x (expected %x)",
+			    fname, be32toh(*magic), MANDOCDB_MAGIC);
+		else
+			warnx("dbm_map(%s): "
+			    "Obsolete format based on SQLite 3",
+			    fname);
+		errno = EFTYPE;
+		goto fail;
+	}
+	magic = dbm_getint(1);
+	if (be32toh(*magic) != MANDOCDB_VERSION) {
+		warnx("dbm_map(%s): Bad version number %d (expected %d)",
+		    fname, be32toh(*magic), MANDOCDB_VERSION);
+		errno = EFTYPE;
+		goto fail;
+	}
+	max_offset = be32toh(*dbm_getint(3)) + sizeof(int32_t);
+	if (st.st_size != max_offset) {
+		warnx("dbm_map(%s): Inconsistent file size %lld (expected %d)",
+		    fname, (long long)st.st_size, max_offset);
+		errno = EFTYPE;
+		goto fail;
+	}
+	if ((magic = dbm_get(*dbm_getint(3))) == NULL) {
+		errno = EFTYPE;
+		goto fail;
+	}
+	if (be32toh(*magic) != MANDOCDB_MAGIC) {
+		warnx("dbm_map(%s): Bad final magic %x (expected %x)",
+		    fname, be32toh(*magic), MANDOCDB_MAGIC);
+		errno = EFTYPE;
+		goto fail;
+	}
+	return 0;
+
+fail:
+	save_errno = errno;
+	close(ifd);
+	errno = save_errno;
+	return -1;
+}
+
+void
+dbm_unmap(void)
+{
+	if (munmap(dbm_base, st.st_size) == -1)
+		warn("dbm_unmap: munmap");
+	if (close(ifd) == -1)
+		warn("dbm_unmap: close");
+	dbm_base = (char *)-1;
+}
+
+/*
+ * Take a raw integer as it was read from the database.
+ * Interpret it as an offset into the database file
+ * and return a pointer to that place in the file.
+ */
+void *
+dbm_get(int32_t offset)
+{
+	offset = be32toh(offset);
+	if (offset < 0) {
+		warnx("dbm_get: Database corrupt: offset %d", offset);
+		return NULL;
+	}
+	if (offset >= max_offset) {
+		warnx("dbm_get: Database corrupt: offset %d > %d",
+		    offset, max_offset);
+		return NULL;
+	}
+	return dbm_base + offset;
+}
+
+/*
+ * Assume the database starts with some integers.
+ * Assume they are numbered starting from 0, increasing.
+ * Get a pointer to one with the number "offset".
+ */
+int32_t *
+dbm_getint(int32_t offset)
+{
+	return (int32_t *)dbm_base + offset;
+}
+
+/*
+ * The reverse of dbm_get().
+ * Take pointer into the database file
+ * and convert it to the raw integer
+ * that would be used to refer to that place in the file.
+ */
+int32_t
+dbm_addr(const void *p)
+{
+	return htobe32((const char *)p - dbm_base);
+}
+
+int
+dbm_match(const struct dbm_match *match, const char *str)
+{
+	switch (match->type) {
+	case DBM_EXACT:
+		return strcmp(str, match->str) == 0;
+	case DBM_SUB:
+		return strcasestr(str, match->str) != NULL;
+	case DBM_REGEX:
+		return regexec(match->re, str, 0, NULL, 0) == 0;
+	default:
+		abort();
+	}
+}

Added: vendor/mandoc/dist/dbm_map.h
===================================================================
--- vendor/mandoc/dist/dbm_map.h	                        (rev 0)
+++ vendor/mandoc/dist/dbm_map.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+/*	$Id: dbm_map.h,v 1.1 2016/07/19 21:31:55 schwarze Exp $ */
+/*
+ * Copyright (c) 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Private interface for low-level routines for the map-based version 
+ * of the mandoc database, for read-only access.
+ * To be used by dbm*.c only.
+ */
+
+struct dbm_match;
+
+int		 dbm_map(const char *);
+void		 dbm_unmap(void);
+void		*dbm_get(int32_t);
+int32_t		*dbm_getint(int32_t);
+int32_t		 dbm_addr(const void *);
+int		 dbm_match(const struct dbm_match *, const char *);

Added: vendor/mandoc/dist/demandoc.1
===================================================================
--- vendor/mandoc/dist/demandoc.1	                        (rev 0)
+++ vendor/mandoc/dist/demandoc.1	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,108 @@
+.\"	$Id: demandoc.1,v 1.8 2014/09/12 00:10:26 schwarze Exp $
+.\"
+.\" Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: September 12 2014 $
+.Dt DEMANDOC 1
+.Os
+.Sh NAME
+.Nm demandoc
+.Nd emit only text of UNIX manuals
+.Sh SYNOPSIS
+.Nm demandoc
+.Op Fl w
+.Op Ar
+.Sh DESCRIPTION
+The
+.Nm
+utility emits only the text portions of well-formed
+.Xr mdoc 7
+and
+.Xr man 7
+.Ux
+manual files.
+.Pp
+By default,
+.Nm
+parses standard input and outputs only text nodes, preserving line
+and column position.
+Escape sequences are omitted from the output.
+.Pp
+Its arguments are as follows:
+.Bl -tag -width Ds
+.It Fl w
+Output a word list.
+This outputs each word of text on its own line.
+A
+.Qq word ,
+in this case, refers to whitespace-delimited terms beginning with at
+least two letters and not consisting of any escape sequences.
+Words have their leading and trailing punctuation
+.Pq double-quotes, sentence punctuation, etc.
+stripped.
+.It Ar
+The input files.
+.El
+.Pp
+If a document is not well-formed, it is skipped.
+.Pp
+The
+.Fl i ,
+.Fl k ,
+.Fl m ,
+and
+.Fl p
+flags are silently discarded for calling compatibility with the
+historical deroff.
+.Sh EXIT STATUS
+The
+.Nm
+utility exits with one of the following values:
+.Pp
+.Bl -tag -width Ds -compact
+.It 0
+No errors occurred.
+.It 6
+An operating system error occurred, for example memory exhaustion or an
+error accessing input files.
+Such errors cause
+.Nm
+to exit at once, possibly in the middle of parsing or formatting a file.
+The output databases are corrupt and should be removed .
+.El
+.Sh EXAMPLES
+The traditional usage of
+.Nm
+is for spell-checking manuals on
+.Bx .
+This is accomplished as follows (assuming British spelling):
+.Pp
+.Dl $ demandoc -w file.1 | spell -b
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr man 7 ,
+.Xr mdoc 7
+.Sh HISTORY
+.Nm
+replaces the historical deroff utility for handling modern
+.Xr man 7
+and
+.Xr mdoc 7
+documents.
+.Sh AUTHORS
+The
+.Nm
+utility was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv .

Added: vendor/mandoc/dist/demandoc.c
===================================================================
--- vendor/mandoc/dist/demandoc.c	                        (rev 0)
+++ vendor/mandoc/dist/demandoc.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,264 @@
+/*	$Id: demandoc.c,v 1.29 2017/06/24 14:38:32 schwarze Exp $ */
+/*
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "man.h"
+#include "mdoc.h"
+
+static	void	 pline(int, int *, int *, int);
+static	void	 pman(const struct roff_node *, int *, int *, int);
+static	void	 pmandoc(struct mparse *, int, const char *, int);
+static	void	 pmdoc(const struct roff_node *, int *, int *, int);
+static	void	 pstring(const char *, int, int *, int);
+static	void	 usage(void);
+
+static	const char	 *progname;
+
+int
+main(int argc, char *argv[])
+{
+	struct mparse	*mp;
+	int		 ch, fd, i, list;
+	extern int	 optind;
+
+	if (argc < 1)
+		progname = "demandoc";
+	else if ((progname = strrchr(argv[0], '/')) == NULL)
+		progname = argv[0];
+	else
+		++progname;
+
+	mp = NULL;
+	list = 0;
+
+	while (-1 != (ch = getopt(argc, argv, "ikm:pw")))
+		switch (ch) {
+		case ('i'):
+			/* FALLTHROUGH */
+		case ('k'):
+			/* FALLTHROUGH */
+		case ('m'):
+			/* FALLTHROUGH */
+		case ('p'):
+			break;
+		case ('w'):
+			list = 1;
+			break;
+		default:
+			usage();
+			return (int)MANDOCLEVEL_BADARG;
+		}
+
+	argc -= optind;
+	argv += optind;
+
+	mchars_alloc();
+	mp = mparse_alloc(MPARSE_SO, MANDOCERR_MAX, NULL,
+	    MANDOC_OS_OTHER, NULL);
+	assert(mp);
+
+	if (argc < 1)
+		pmandoc(mp, STDIN_FILENO, "<stdin>", list);
+
+	for (i = 0; i < argc; i++) {
+		mparse_reset(mp);
+		if ((fd = mparse_open(mp, argv[i])) == -1) {
+			perror(argv[i]);
+			continue;
+		}
+		pmandoc(mp, fd, argv[i], list);
+	}
+
+	mparse_free(mp);
+	mchars_free();
+	return (int)MANDOCLEVEL_OK;
+}
+
+static void
+usage(void)
+{
+
+	fprintf(stderr, "usage: %s [-w] [files...]\n", progname);
+}
+
+static void
+pmandoc(struct mparse *mp, int fd, const char *fn, int list)
+{
+	struct roff_man	*man;
+	int		 line, col;
+
+	mparse_readfd(mp, fd, fn);
+	close(fd);
+	mparse_result(mp, &man, NULL);
+	line = 1;
+	col = 0;
+
+	if (man == NULL)
+		return;
+	if (man->macroset == MACROSET_MDOC) {
+		mdoc_validate(man);
+		pmdoc(man->first->child, &line, &col, list);
+	} else {
+		man_validate(man);
+		pman(man->first->child, &line, &col, list);
+	}
+
+	if ( ! list)
+		putchar('\n');
+}
+
+/*
+ * Strip the escapes out of a string, emitting the results.
+ */
+static void
+pstring(const char *p, int col, int *colp, int list)
+{
+	enum mandoc_esc	 esc;
+	const char	*start, *end;
+	int		 emit;
+
+	/*
+	 * Print as many column spaces til we achieve parity with the
+	 * input document.
+	 */
+
+again:
+	if (list && '\0' != *p) {
+		while (isspace((unsigned char)*p))
+			p++;
+
+		while ('\'' == *p || '(' == *p || '"' == *p)
+			p++;
+
+		emit = isalpha((unsigned char)p[0]) &&
+			isalpha((unsigned char)p[1]);
+
+		for (start = p; '\0' != *p; p++)
+			if ('\\' == *p) {
+				p++;
+				esc = mandoc_escape(&p, NULL, NULL);
+				if (ESCAPE_ERROR == esc)
+					return;
+				emit = 0;
+			} else if (isspace((unsigned char)*p))
+				break;
+
+		end = p - 1;
+
+		while (end > start)
+			if ('.' == *end || ',' == *end ||
+					'\'' == *end || '"' == *end ||
+					')' == *end || '!' == *end ||
+					'?' == *end || ':' == *end ||
+					';' == *end)
+				end--;
+			else
+				break;
+
+		if (emit && end - start >= 1) {
+			for ( ; start <= end; start++)
+				if (ASCII_HYPH == *start)
+					putchar('-');
+				else
+					putchar((unsigned char)*start);
+			putchar('\n');
+		}
+
+		if (isspace((unsigned char)*p))
+			goto again;
+
+		return;
+	}
+
+	while (*colp < col) {
+		putchar(' ');
+		(*colp)++;
+	}
+
+	/*
+	 * Print the input word, skipping any special characters.
+	 */
+	while ('\0' != *p)
+		if ('\\' == *p) {
+			p++;
+			esc = mandoc_escape(&p, NULL, NULL);
+			if (ESCAPE_ERROR == esc)
+				break;
+		} else {
+			putchar((unsigned char )*p++);
+			(*colp)++;
+		}
+}
+
+static void
+pline(int line, int *linep, int *col, int list)
+{
+
+	if (list)
+		return;
+
+	/*
+	 * Print out as many lines as needed to reach parity with the
+	 * original input.
+	 */
+
+	while (*linep < line) {
+		putchar('\n');
+		(*linep)++;
+	}
+
+	*col = 0;
+}
+
+static void
+pmdoc(const struct roff_node *p, int *line, int *col, int list)
+{
+
+	for ( ; p; p = p->next) {
+		if (NODE_LINE & p->flags)
+			pline(p->line, line, col, list);
+		if (ROFFT_TEXT == p->type)
+			pstring(p->string, p->pos, col, list);
+		if (p->child)
+			pmdoc(p->child, line, col, list);
+	}
+}
+
+static void
+pman(const struct roff_node *p, int *line, int *col, int list)
+{
+
+	for ( ; p; p = p->next) {
+		if (NODE_LINE & p->flags)
+			pline(p->line, line, col, list);
+		if (ROFFT_TEXT == p->type)
+			pstring(p->string, p->pos, col, list);
+		if (p->child)
+			pman(p->child, line, col, list);
+	}
+}

Added: vendor/mandoc/dist/eqn.7
===================================================================
--- vendor/mandoc/dist/eqn.7	                        (rev 0)
+++ vendor/mandoc/dist/eqn.7	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,500 @@
+.\"	$Id: eqn.7,v 1.36 2017/07/20 11:07:27 schwarze Exp $
+.\"
+.\" Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2014 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 20 2017 $
+.Dt EQN 7
+.Os
+.Sh NAME
+.Nm eqn
+.Nd eqn language reference for mandoc
+.Sh DESCRIPTION
+The
+.Nm eqn
+language is an equation-formatting language.
+It is used within
+.Xr mdoc 7
+and
+.Xr man 7
+.Ux
+manual pages.
+It describes the
+.Em structure
+of an equation, not its mathematical meaning.
+This manual describes the
+.Nm
+language accepted by the
+.Xr mandoc 1
+utility, which corresponds to the Second Edition
+.Nm
+specification (see
+.Sx SEE ALSO
+for references).
+.Pp
+Equations within
+.Xr mdoc 7
+or
+.Xr man 7
+documents are enclosed by the standalone
+.Sq \&.EQ
+and
+.Sq \&.EN
+tags.
+Equations are multi-line blocks consisting of formulas and control
+statements.
+.Sh EQUATION STRUCTURE
+Each equation is bracketed by
+.Sq \&.EQ
+and
+.Sq \&.EN
+strings.
+.Em Note :
+these are not the same as
+.Xr roff 7
+macros, and may only be invoked as
+.Sq \&.EQ .
+.Pp
+The equation grammar is as follows, where quoted strings are
+case-sensitive literals in the input:
+.Bd -literal -offset indent
+eqn     : box | eqn box
+box     : text
+        | \(dq{\(dq eqn \(dq}\(dq
+        | \(dqdefine\(dq text text
+        | \(dqndefine\(dq text text
+        | \(dqtdefine\(dq text text
+        | \(dqgfont\(dq text
+        | \(dqgsize\(dq text
+        | \(dqset\(dq text text
+        | \(dqundef\(dq text
+        | \(dqsqrt\(dq box
+        | box pos box
+        | box mark
+        | \(dqmatrix\(dq \(dq{\(dq [col \(dq{\(dq list \(dq}\(dq ]*
+        | pile \(dq{\(dq list \(dq}\(dq
+        | font box
+        | \(dqsize\(dq text box
+        | \(dqleft\(dq text eqn [\(dqright\(dq text]
+col     : \(dqlcol\(dq | \(dqrcol\(dq | \(dqccol\(dq | \(dqcol\(dq
+text    : [^space\e\(dq]+ | \e\(dq.*\e\(dq
+pile    : \(dqlpile\(dq | \(dqcpile\(dq | \(dqrpile\(dq | \(dqpile\(dq
+pos     : \(dqover\(dq | \(dqsup\(dq | \(dqsub\(dq | \(dqto\(dq | \(dqfrom\(dq
+mark	: \(dqdot\(dq | \(dqdotdot\(dq | \(dqhat\(dq | \(dqtilde\(dq | \(dqvec\(dq
+        | \(dqdyad\(dq | \(dqbar\(dq | \(dqunder\(dq
+font    : \(dqroman\(dq | \(dqitalic\(dq | \(dqbold\(dq | \(dqfat\(dq
+list    : eqn
+        | list \(dqabove\(dq eqn
+space   : [\e^~ \et]
+.Ed
+.Pp
+White-space consists of the space, tab, circumflex, and tilde
+characters.
+It is required to delimit tokens consisting of alphabetic characters
+and it is ignored at other places.
+Braces and quotes also delimit tokens.
+If within a quoted string, these space characters are retained.
+Quoted strings are also not scanned for keywords, glyph names,
+and expansion of definitions.
+To print a literal quote character, it can be prepended with a
+backslash or expressed with the \e(dq escape sequence.
+.Pp
+Subequations can be enclosed in braces to pass them as arguments
+to operation keywords, overriding standard operation precedence.
+Braces can be nested.
+To set a brace verbatim, it needs to be enclosed in quotes.
+.Pp
+The following text terms are translated into a rendered glyph, if
+available: alpha, beta, chi, delta, epsilon, eta, gamma, iota, kappa,
+lambda, mu, nu, omega, omicron, phi, pi, psi, rho, sigma, tau, theta,
+upsilon, xi, zeta, DELTA, GAMMA, LAMBDA, OMEGA, PHI, PI, PSI, SIGMA,
+THETA, UPSILON, XI, inter (intersection), union (union), prod (product),
+int (integral), sum (summation), grad (gradient), del (vector
+differential), times (multiply), cdot (center-dot), nothing (zero-width
+space), approx (approximately equals), prime (prime), half (one-half),
+partial (partial differential), inf (infinity), >> (much greater), <<
+(much less), <\- (left arrow), \-> (right arrow), +\- (plus-minus), !=
+(not equal), == (equivalence), <= (less-than-equal), and >=
+(more-than-equal).
+The character escape sequences documented in
+.Xr mandoc_char 7
+can be used, too.
+.Pp
+The following control statements are available:
+.Bl -tag -width Ds
+.It Cm define
+Replace all occurrences of a key with a value.
+Its syntax is as follows:
+.Pp
+.D1 Cm define Ar key cvalc
+.Pp
+The first character of the value string,
+.Ar c ,
+is used as the delimiter for the value
+.Ar val .
+This allows for arbitrary enclosure of terms (not just quotes), such as
+.Pp
+.D1 Cm define Ar foo \(aqbar baz\(aq
+.D1 Cm define Ar foo cbar bazc
+.Pp
+It is an error to have an empty
+.Ar key
+or
+.Ar val .
+Note that a quoted
+.Ar key
+causes errors in some
+.Nm
+implementations and should not be considered portable.
+It is not expanded for replacements.
+Definitions may refer to other definitions; these are evaluated
+recursively when text replacement occurs and not when the definition is
+created.
+.Pp
+Definitions can create arbitrary strings, for example, the following is
+a legal construction.
+.Bd -literal -offset indent
+define foo \(aqdefine\(aq
+foo bar \(aqbaz\(aq
+.Ed
+.Pp
+Self-referencing definitions will raise an error.
+The
+.Cm ndefine
+statement is a synonym for
+.Cm define ,
+while
+.Cm tdefine
+is discarded.
+.It Cm gfont
+Set the default font of subsequent output.
+Its syntax is as follows:
+.Pp
+.D1 Cm gfont Ar font
+.Pp
+In mandoc, this value is discarded.
+.It Cm gsize
+Set the default size of subsequent output.
+Its syntax is as follows:
+.Pp
+.D1 Cm gsize Oo +|\- Oc Ns Ar size
+.Pp
+The
+.Ar size
+value should be an integer.
+If prepended by a sign,
+the font size is changed relative to the current size.
+.It Cm set
+Set an equation mode.
+In mandoc, both arguments are thrown away.
+Its syntax is as follows:
+.Pp
+.D1 Cm set Ar key val
+.Pp
+The
+.Ar key
+and
+.Ar val
+are not expanded for replacements.
+This statement is a GNU extension.
+.It Cm undef
+Unset a previously-defined key.
+Its syntax is as follows:
+.Pp
+.D1 Cm define Ar key
+.Pp
+Once invoked, the definition for
+.Ar key
+is discarded.
+The
+.Ar key
+is not expanded for replacements.
+This statement is a GNU extension.
+.El
+.Pp
+Operation keywords have the following semantics:
+.Bl -tag -width Ds
+.It Cm above
+See
+.Cm pile .
+.It Cm bar
+Draw a line over the preceding box.
+.It Cm bold
+Set the following box using bold font.
+.It Cm ccol
+Like
+.Cm cpile ,
+but for use in
+.Cm matrix .
+.It Cm cpile
+Like
+.Cm pile ,
+but with slightly increased vertical spacing.
+.It Cm dot
+Set a single dot over the preceding box.
+.It Cm dotdot
+Set two dots (dieresis) over the preceding box.
+.It Cm dyad
+Set a dyad symbol (left-right arrow) over the preceding box.
+.It Cm fat
+A synonym for
+.Cm bold .
+.It Cm font
+Set the second argument using the font specified by the first argument;
+currently not recognized by the
+.Xr mandoc 1
+.Nm
+parser.
+.It Cm from
+Set the following box below the preceding box,
+using a slightly smaller font.
+Used for sums, integrals, limits, and the like.
+.It Cm hat
+Set a hat (circumflex) over the preceding box.
+.It Cm italic
+Set the following box using italic font.
+.It Cm lcol
+Like
+.Cm lpile ,
+but for use in
+.Cm matrix .
+.It Cm left
+Set the first argument as a big left delimiter before the second argument.
+As an optional third argument,
+.Cm right
+can follow.
+In that case, the fourth argument is set as a big right delimiter after
+the second argument.
+.It Cm lpile
+Like
+.Cm cpile ,
+but subequations are left-justified.
+.It Cm matrix
+Followed by a list of columns enclosed in braces.
+All columns need to have the same number of subequations.
+The columns are set as a matrix.
+The difference compared to multiple subsequent
+.Cm pile
+operators is that in a
+.Cm matrix ,
+corresponding subequations in all columns line up horizontally,
+while each
+.Cm pile
+does vertical spacing independently.
+.It Cm over
+Set a fraction.
+The preceding box is the numerator, the following box is the denominator.
+.It Cm pile
+Followed by a list of subequations enclosed in braces,
+the subequations being separated by
+.Cm above
+keywords.
+Sets the subequations one above the other, each of them centered.
+Typically used to represent vectors in coordinate representation.
+.It Cm rcol
+Like
+.Cm rpile ,
+but for use in
+.Cm matrix .
+.It Cm right
+See
+.Cm left ;
+.Cm right
+cannot be used without
+.Cm left .
+To set a big right delimiter without a big left delimiter, the following
+construction can be used:
+.Pp
+.D1 Cm left No \(dq\(dq Ar box Cm right Ar delimiter
+.It Cm roman
+Set the following box using the default font.
+.It Cm rpile
+Like
+.Cm cpile ,
+but subequations are right-justified.
+.It Cm size
+Set the second argument with the font size specified by the first
+argument; currently ignored by
+.Xr mandoc 1 .
+By prepending a plus or minus sign to the first argument,
+the font size can be selected relative to the current size.
+.It Cm sqrt
+Set the square root of the following box.
+.It Cm sub
+Set the following box as a subscript to the preceding box.
+.It Cm sup
+Set the following box as a superscript to the preceding box.
+As a special case, if a
+.Cm sup
+clause immediately follows a
+.Cm sub
+clause as in
+.Pp
+.D1 Ar mainbox Cm sub Ar subbox Cm sup Ar supbox
+.Pp
+both are set with respect to the same
+.Ar mainbox ,
+that is,
+.Ar supbox
+is set above
+.Ar subbox .
+.It Cm tilde
+Set a tilde over the preceding box.
+.It Cm to
+Set the following box above the preceding box,
+using a slightly smaller font.
+Used for sums and integrals and the like.
+As a special case, if a
+.Cm to
+clause immediately follows a
+.Cm from
+clause as in
+.Pp
+.D1 Ar mainbox Cm from Ar frombox Cm to Ar tobox
+.Pp
+both are set below and above the same
+.Ar mainbox .
+.It Cm under
+Underline the preceding box.
+.It Cm vec
+Set a vector symbol (right arrow) over the preceding box.
+.El
+.Pp
+The binary operations
+.Cm from ,
+.Cm to ,
+.Cm sub ,
+and
+.Cm sup
+group to the right, that is,
+.Pp
+.D1 Ar mainbox Cm sup Ar supbox Cm sub Ar subbox
+.Pp
+is the same as
+.Pp
+.D1 Ar mainbox Cm sup Brq Ar supbox Cm sub Ar subbox
+.Pp
+and different from
+.Pp
+.D1 Bro Ar mainbox Cm sup Ar supbox Brc Cm sub Ar subbox .
+.Pp
+By contrast,
+.Cm over
+groups to the left.
+.Pp
+In the following list, earlier operations bind more tightly than
+later operations:
+.Pp
+.Bl -enum -compact
+.It
+.Cm dyad ,
+.Cm vec ,
+.Cm under ,
+.Cm bar ,
+.Cm tilde ,
+.Cm hat ,
+.Cm dot ,
+.Cm dotdot
+.It
+.Cm fat ,
+.Cm roman ,
+.Cm italic ,
+.Cm bold ,
+.Cm size
+.It
+.Cm sub ,
+.Cm sup
+.It
+.Cm sqrt
+.It
+.Cm over
+.It
+.Cm from ,
+.Cm to
+.El
+.Sh COMPATIBILITY
+This section documents the compatibility of mandoc
+.Nm
+and the troff
+.Nm
+implementation (including GNU troff).
+.Pp
+.Bl -dash -compact
+.It
+The text string
+.Sq \e\(dq
+is interpreted as a literal quote in troff.
+In mandoc, this is interpreted as a comment.
+.It
+In troff, The circumflex and tilde white-space symbols map to
+fixed-width spaces.
+In mandoc, these characters are synonyms for the space character.
+.It
+The troff implementation of
+.Nm
+allows for equation alignment with the
+.Cm mark
+and
+.Cm lineup
+tokens.
+mandoc discards these tokens.
+The
+.Cm back Ar n ,
+.Cm fwd Ar n ,
+.Cm up Ar n ,
+and
+.Cm down Ar n
+commands are also ignored.
+.El
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr man 7 ,
+.Xr mandoc_char 7 ,
+.Xr mdoc 7 ,
+.Xr roff 7
+.Rs
+.%A Brian W. Kernighan
+.%A Lorinda L. Cherry
+.%T System for Typesetting Mathematics
+.%J Communications of the ACM
+.%V 18
+.%P 151\(en157
+.%D March, 1975
+.Re
+.Rs
+.%A Brian W. Kernighan
+.%A Lorinda L. Cherry
+.%T Typesetting Mathematics, User's Guide
+.%D 1976
+.Re
+.Rs
+.%A Brian W. Kernighan
+.%A Lorinda L. Cherry
+.%T Typesetting Mathematics, User's Guide (Second Edition)
+.%D 1978
+.Re
+.Sh HISTORY
+The eqn utility, a preprocessor for troff, was originally written by
+Brian W. Kernighan and Lorinda L. Cherry in 1975.
+The GNU reimplementation of eqn, part of the GNU troff package, was
+released in 1989 by James Clark.
+The eqn component of
+.Xr mandoc 1
+was added in 2011.
+.Sh AUTHORS
+This
+.Nm
+reference was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv .

Added: vendor/mandoc/dist/eqn.c
===================================================================
--- vendor/mandoc/dist/eqn.c	                        (rev 0)
+++ vendor/mandoc/dist/eqn.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1103 @@
+/*	$Id: eqn.c,v 1.78 2017/07/15 16:26:17 schwarze Exp $ */
+/*
+ * Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "libmandoc.h"
+#include "libroff.h"
+
+#define	EQN_NEST_MAX	 128 /* maximum nesting of defines */
+#define	STRNEQ(p1, sz1, p2, sz2) \
+	((sz1) == (sz2) && 0 == strncmp((p1), (p2), (sz1)))
+
+enum	eqn_tok {
+	EQN_TOK_DYAD = 0,
+	EQN_TOK_VEC,
+	EQN_TOK_UNDER,
+	EQN_TOK_BAR,
+	EQN_TOK_TILDE,
+	EQN_TOK_HAT,
+	EQN_TOK_DOT,
+	EQN_TOK_DOTDOT,
+	EQN_TOK_FWD,
+	EQN_TOK_BACK,
+	EQN_TOK_DOWN,
+	EQN_TOK_UP,
+	EQN_TOK_FAT,
+	EQN_TOK_ROMAN,
+	EQN_TOK_ITALIC,
+	EQN_TOK_BOLD,
+	EQN_TOK_SIZE,
+	EQN_TOK_SUB,
+	EQN_TOK_SUP,
+	EQN_TOK_SQRT,
+	EQN_TOK_OVER,
+	EQN_TOK_FROM,
+	EQN_TOK_TO,
+	EQN_TOK_BRACE_OPEN,
+	EQN_TOK_BRACE_CLOSE,
+	EQN_TOK_GSIZE,
+	EQN_TOK_GFONT,
+	EQN_TOK_MARK,
+	EQN_TOK_LINEUP,
+	EQN_TOK_LEFT,
+	EQN_TOK_RIGHT,
+	EQN_TOK_PILE,
+	EQN_TOK_LPILE,
+	EQN_TOK_RPILE,
+	EQN_TOK_CPILE,
+	EQN_TOK_MATRIX,
+	EQN_TOK_CCOL,
+	EQN_TOK_LCOL,
+	EQN_TOK_RCOL,
+	EQN_TOK_DELIM,
+	EQN_TOK_DEFINE,
+	EQN_TOK_TDEFINE,
+	EQN_TOK_NDEFINE,
+	EQN_TOK_UNDEF,
+	EQN_TOK_ABOVE,
+	EQN_TOK__MAX,
+	EQN_TOK_FUNC,
+	EQN_TOK_QUOTED,
+	EQN_TOK_SYM,
+	EQN_TOK_EOF
+};
+
+static	const char *eqn_toks[EQN_TOK__MAX] = {
+	"dyad", /* EQN_TOK_DYAD */
+	"vec", /* EQN_TOK_VEC */
+	"under", /* EQN_TOK_UNDER */
+	"bar", /* EQN_TOK_BAR */
+	"tilde", /* EQN_TOK_TILDE */
+	"hat", /* EQN_TOK_HAT */
+	"dot", /* EQN_TOK_DOT */
+	"dotdot", /* EQN_TOK_DOTDOT */
+	"fwd", /* EQN_TOK_FWD * */
+	"back", /* EQN_TOK_BACK */
+	"down", /* EQN_TOK_DOWN */
+	"up", /* EQN_TOK_UP */
+	"fat", /* EQN_TOK_FAT */
+	"roman", /* EQN_TOK_ROMAN */
+	"italic", /* EQN_TOK_ITALIC */
+	"bold", /* EQN_TOK_BOLD */
+	"size", /* EQN_TOK_SIZE */
+	"sub", /* EQN_TOK_SUB */
+	"sup", /* EQN_TOK_SUP */
+	"sqrt", /* EQN_TOK_SQRT */
+	"over", /* EQN_TOK_OVER */
+	"from", /* EQN_TOK_FROM */
+	"to", /* EQN_TOK_TO */
+	"{", /* EQN_TOK_BRACE_OPEN */
+	"}", /* EQN_TOK_BRACE_CLOSE */
+	"gsize", /* EQN_TOK_GSIZE */
+	"gfont", /* EQN_TOK_GFONT */
+	"mark", /* EQN_TOK_MARK */
+	"lineup", /* EQN_TOK_LINEUP */
+	"left", /* EQN_TOK_LEFT */
+	"right", /* EQN_TOK_RIGHT */
+	"pile", /* EQN_TOK_PILE */
+	"lpile", /* EQN_TOK_LPILE */
+	"rpile", /* EQN_TOK_RPILE */
+	"cpile", /* EQN_TOK_CPILE */
+	"matrix", /* EQN_TOK_MATRIX */
+	"ccol", /* EQN_TOK_CCOL */
+	"lcol", /* EQN_TOK_LCOL */
+	"rcol", /* EQN_TOK_RCOL */
+	"delim", /* EQN_TOK_DELIM */
+	"define", /* EQN_TOK_DEFINE */
+	"tdefine", /* EQN_TOK_TDEFINE */
+	"ndefine", /* EQN_TOK_NDEFINE */
+	"undef", /* EQN_TOK_UNDEF */
+	"above", /* EQN_TOK_ABOVE */
+};
+
+static	const char *const eqn_func[] = {
+	"acos",	"acsc",	"and",	"arc",	"asec",	"asin", "atan",
+	"cos",	"cosh", "coth",	"csc",	"det",	"exp",	"for",
+	"if",	"lim",	"ln",	"log",	"max",	"min",
+	"sec",	"sin",	"sinh",	"tan",	"tanh",	"Im",	"Re",
+};
+
+enum	eqn_symt {
+	EQNSYM_alpha = 0,
+	EQNSYM_beta,
+	EQNSYM_chi,
+	EQNSYM_delta,
+	EQNSYM_epsilon,
+	EQNSYM_eta,
+	EQNSYM_gamma,
+	EQNSYM_iota,
+	EQNSYM_kappa,
+	EQNSYM_lambda,
+	EQNSYM_mu,
+	EQNSYM_nu,
+	EQNSYM_omega,
+	EQNSYM_omicron,
+	EQNSYM_phi,
+	EQNSYM_pi,
+	EQNSYM_ps,
+	EQNSYM_rho,
+	EQNSYM_sigma,
+	EQNSYM_tau,
+	EQNSYM_theta,
+	EQNSYM_upsilon,
+	EQNSYM_xi,
+	EQNSYM_zeta,
+	EQNSYM_DELTA,
+	EQNSYM_GAMMA,
+	EQNSYM_LAMBDA,
+	EQNSYM_OMEGA,
+	EQNSYM_PHI,
+	EQNSYM_PI,
+	EQNSYM_PSI,
+	EQNSYM_SIGMA,
+	EQNSYM_THETA,
+	EQNSYM_UPSILON,
+	EQNSYM_XI,
+	EQNSYM_inter,
+	EQNSYM_union,
+	EQNSYM_prod,
+	EQNSYM_int,
+	EQNSYM_sum,
+	EQNSYM_grad,
+	EQNSYM_del,
+	EQNSYM_times,
+	EQNSYM_cdot,
+	EQNSYM_nothing,
+	EQNSYM_approx,
+	EQNSYM_prime,
+	EQNSYM_half,
+	EQNSYM_partial,
+	EQNSYM_inf,
+	EQNSYM_muchgreat,
+	EQNSYM_muchless,
+	EQNSYM_larrow,
+	EQNSYM_rarrow,
+	EQNSYM_pm,
+	EQNSYM_nequal,
+	EQNSYM_equiv,
+	EQNSYM_lessequal,
+	EQNSYM_moreequal,
+	EQNSYM_minus,
+	EQNSYM__MAX
+};
+
+struct	eqnsym {
+	const char	*str;
+	const char	*sym;
+};
+
+static	const struct eqnsym eqnsyms[EQNSYM__MAX] = {
+	{ "alpha", "*a" }, /* EQNSYM_alpha */
+	{ "beta", "*b" }, /* EQNSYM_beta */
+	{ "chi", "*x" }, /* EQNSYM_chi */
+	{ "delta", "*d" }, /* EQNSYM_delta */
+	{ "epsilon", "*e" }, /* EQNSYM_epsilon */
+	{ "eta", "*y" }, /* EQNSYM_eta */
+	{ "gamma", "*g" }, /* EQNSYM_gamma */
+	{ "iota", "*i" }, /* EQNSYM_iota */
+	{ "kappa", "*k" }, /* EQNSYM_kappa */
+	{ "lambda", "*l" }, /* EQNSYM_lambda */
+	{ "mu", "*m" }, /* EQNSYM_mu */
+	{ "nu", "*n" }, /* EQNSYM_nu */
+	{ "omega", "*w" }, /* EQNSYM_omega */
+	{ "omicron", "*o" }, /* EQNSYM_omicron */
+	{ "phi", "*f" }, /* EQNSYM_phi */
+	{ "pi", "*p" }, /* EQNSYM_pi */
+	{ "psi", "*q" }, /* EQNSYM_psi */
+	{ "rho", "*r" }, /* EQNSYM_rho */
+	{ "sigma", "*s" }, /* EQNSYM_sigma */
+	{ "tau", "*t" }, /* EQNSYM_tau */
+	{ "theta", "*h" }, /* EQNSYM_theta */
+	{ "upsilon", "*u" }, /* EQNSYM_upsilon */
+	{ "xi", "*c" }, /* EQNSYM_xi */
+	{ "zeta", "*z" }, /* EQNSYM_zeta */
+	{ "DELTA", "*D" }, /* EQNSYM_DELTA */
+	{ "GAMMA", "*G" }, /* EQNSYM_GAMMA */
+	{ "LAMBDA", "*L" }, /* EQNSYM_LAMBDA */
+	{ "OMEGA", "*W" }, /* EQNSYM_OMEGA */
+	{ "PHI", "*F" }, /* EQNSYM_PHI */
+	{ "PI", "*P" }, /* EQNSYM_PI */
+	{ "PSI", "*Q" }, /* EQNSYM_PSI */
+	{ "SIGMA", "*S" }, /* EQNSYM_SIGMA */
+	{ "THETA", "*H" }, /* EQNSYM_THETA */
+	{ "UPSILON", "*U" }, /* EQNSYM_UPSILON */
+	{ "XI", "*C" }, /* EQNSYM_XI */
+	{ "inter", "ca" }, /* EQNSYM_inter */
+	{ "union", "cu" }, /* EQNSYM_union */
+	{ "prod", "product" }, /* EQNSYM_prod */
+	{ "int", "integral" }, /* EQNSYM_int */
+	{ "sum", "sum" }, /* EQNSYM_sum */
+	{ "grad", "gr" }, /* EQNSYM_grad */
+	{ "del", "gr" }, /* EQNSYM_del */
+	{ "times", "mu" }, /* EQNSYM_times */
+	{ "cdot", "pc" }, /* EQNSYM_cdot */
+	{ "nothing", "&" }, /* EQNSYM_nothing */
+	{ "approx", "~~" }, /* EQNSYM_approx */
+	{ "prime", "fm" }, /* EQNSYM_prime */
+	{ "half", "12" }, /* EQNSYM_half */
+	{ "partial", "pd" }, /* EQNSYM_partial */
+	{ "inf", "if" }, /* EQNSYM_inf */
+	{ ">>", ">>" }, /* EQNSYM_muchgreat */
+	{ "<<", "<<" }, /* EQNSYM_muchless */
+	{ "<-", "<-" }, /* EQNSYM_larrow */
+	{ "->", "->" }, /* EQNSYM_rarrow */
+	{ "+-", "+-" }, /* EQNSYM_pm */
+	{ "!=", "!=" }, /* EQNSYM_nequal */
+	{ "==", "==" }, /* EQNSYM_equiv */
+	{ "<=", "<=" }, /* EQNSYM_lessequal */
+	{ ">=", ">=" }, /* EQNSYM_moreequal */
+	{ "-", "mi" }, /* EQNSYM_minus */
+};
+
+enum	parse_mode {
+	MODE_QUOTED,
+	MODE_NOSUB,
+	MODE_SUB,
+	MODE_TOK
+};
+
+static	struct eqn_box	*eqn_box_alloc(struct eqn_node *, struct eqn_box *);
+static	struct eqn_box	*eqn_box_makebinary(struct eqn_node *,
+				struct eqn_box *);
+static	void		 eqn_def(struct eqn_node *);
+static	struct eqn_def	*eqn_def_find(struct eqn_node *);
+static	void		 eqn_delim(struct eqn_node *);
+static	enum eqn_tok	 eqn_next(struct eqn_node *, enum parse_mode);
+static	void		 eqn_undef(struct eqn_node *);
+
+
+struct eqn_node *
+eqn_alloc(struct mparse *parse)
+{
+	struct eqn_node *ep;
+
+	ep = mandoc_calloc(1, sizeof(*ep));
+	ep->parse = parse;
+	ep->gsize = EQN_DEFSIZE;
+	return ep;
+}
+
+void
+eqn_reset(struct eqn_node *ep)
+{
+	free(ep->data);
+	ep->data = ep->start = ep->end = NULL;
+	ep->sz = ep->toksz = 0;
+}
+
+void
+eqn_read(struct eqn_node *ep, const char *p)
+{
+	char		*cp;
+
+	if (ep->data == NULL) {
+		ep->sz = strlen(p);
+		ep->data = mandoc_strdup(p);
+	} else {
+		ep->sz = mandoc_asprintf(&cp, "%s %s", ep->data, p);
+		free(ep->data);
+		ep->data = cp;
+	}
+	ep->sz += 1;
+}
+
+/*
+ * Find the key "key" of the give size within our eqn-defined values.
+ */
+static struct eqn_def *
+eqn_def_find(struct eqn_node *ep)
+{
+	int		 i;
+
+	for (i = 0; i < (int)ep->defsz; i++)
+		if (ep->defs[i].keysz && STRNEQ(ep->defs[i].key,
+		    ep->defs[i].keysz, ep->start, ep->toksz))
+			return &ep->defs[i];
+
+	return NULL;
+}
+
+/*
+ * Parse a token from the input text.  The modes are:
+ * MODE_QUOTED: Use *ep->start as the delimiter; the token ends
+ *   before its next occurence.  Do not interpret the token in any
+ *   way and return EQN_TOK_QUOTED.  All other modes behave like
+ *   MODE_QUOTED when *ep->start is '"'.
+ * MODE_NOSUB: If *ep->start is a curly brace, the token ends after it;
+ *   otherwise, it ends before the next whitespace or brace.
+ *   Do not interpret the token and return EQN_TOK__MAX.
+ * MODE_SUB: Like MODE_NOSUB, but try to interpret the token as an
+ *   alias created with define.  If it is an alias, replace it with
+ *   its string value and reparse.
+ * MODE_TOK: Like MODE_SUB, but also check the token against the list
+ *   of tokens, and if there is a match, return that token.  Otherwise,
+ *   if the token matches a symbol, return EQN_TOK_SYM; if it matches
+ *   a function name, EQN_TOK_FUNC, or else EQN_TOK__MAX.  Except for
+ *   a token match, *ep->start is set to an allocated string that the
+ *   caller is expected to free.
+ * All modes skip whitespace following the end of the token.
+ */
+static enum eqn_tok
+eqn_next(struct eqn_node *ep, enum parse_mode mode)
+{
+	static int	 last_len, lim;
+
+	struct eqn_def	*def;
+	size_t		 start;
+	int		 diff, i, quoted;
+	enum eqn_tok	 tok;
+
+	/*
+	 * Reset the recursion counter after advancing
+	 * beyond the end of the previous substitution.
+	 */
+	if (ep->end - ep->data >= last_len)
+		lim = 0;
+
+	ep->start = ep->end;
+	quoted = mode == MODE_QUOTED;
+	for (;;) {
+		switch (*ep->start) {
+		case '\0':
+			ep->toksz = 0;
+			return EQN_TOK_EOF;
+		case '"':
+			quoted = 1;
+			break;
+		default:
+			break;
+		}
+		if (quoted) {
+			ep->end = strchr(ep->start + 1, *ep->start);
+			ep->start++;  /* Skip opening quote. */
+			if (ep->end == NULL) {
+				mandoc_msg(MANDOCERR_ARG_QUOTE, ep->parse,
+				    ep->node->line, ep->node->pos, NULL);
+				ep->end = strchr(ep->start, '\0');
+			}
+		} else {
+			ep->end = ep->start + 1;
+			if (*ep->start != '{' && *ep->start != '}')
+				ep->end += strcspn(ep->end, " ^~\"{}\t");
+		}
+		ep->toksz = ep->end - ep->start;
+		if (quoted && *ep->end != '\0')
+			ep->end++;  /* Skip closing quote. */
+		while (*ep->end != '\0' && strchr(" \t^~", *ep->end) != NULL)
+			ep->end++;
+		if (quoted)  /* Cannot return, may have to strndup. */
+			break;
+		if (mode == MODE_NOSUB)
+			return EQN_TOK__MAX;
+		if ((def = eqn_def_find(ep)) == NULL)
+			break;
+		if (++lim > EQN_NEST_MAX) {
+			mandoc_msg(MANDOCERR_ROFFLOOP, ep->parse,
+			    ep->node->line, ep->node->pos, NULL);
+			return EQN_TOK_EOF;
+		}
+
+		/* Replace a defined name with its string value. */
+		if ((diff = def->valsz - ep->toksz) > 0) {
+			start = ep->start - ep->data;
+			ep->sz += diff;
+			ep->data = mandoc_realloc(ep->data, ep->sz + 1);
+			ep->start = ep->data + start;
+		}
+		if (diff)
+			memmove(ep->start + def->valsz, ep->start + ep->toksz,
+			    strlen(ep->start + ep->toksz) + 1);
+		memcpy(ep->start, def->val, def->valsz);
+		last_len = ep->start - ep->data + def->valsz;
+	}
+	if (mode != MODE_TOK)
+		return quoted ? EQN_TOK_QUOTED : EQN_TOK__MAX;
+	if (quoted) {
+		ep->start = mandoc_strndup(ep->start, ep->toksz);
+		return EQN_TOK_QUOTED;
+	}
+	for (tok = 0; tok < EQN_TOK__MAX; tok++)
+		if (STRNEQ(ep->start, ep->toksz,
+		    eqn_toks[tok], strlen(eqn_toks[tok])))
+			return tok;
+
+	for (i = 0; i < EQNSYM__MAX; i++) {
+		if (STRNEQ(ep->start, ep->toksz,
+		    eqnsyms[i].str, strlen(eqnsyms[i].str))) {
+			mandoc_asprintf(&ep->start,
+			    "\\[%s]", eqnsyms[i].sym);
+			return EQN_TOK_SYM;
+		}
+	}
+	ep->start = mandoc_strndup(ep->start, ep->toksz);
+	for (i = 0; i < (int)(sizeof(eqn_func)/sizeof(*eqn_func)); i++)
+		if (STRNEQ(ep->start, ep->toksz,
+		    eqn_func[i], strlen(eqn_func[i])))
+			return EQN_TOK_FUNC;
+	return EQN_TOK__MAX;
+}
+
+void
+eqn_box_free(struct eqn_box *bp)
+{
+
+	if (bp->first)
+		eqn_box_free(bp->first);
+	if (bp->next)
+		eqn_box_free(bp->next);
+
+	free(bp->text);
+	free(bp->left);
+	free(bp->right);
+	free(bp->top);
+	free(bp->bottom);
+	free(bp);
+}
+
+/*
+ * Allocate a box as the last child of the parent node.
+ */
+static struct eqn_box *
+eqn_box_alloc(struct eqn_node *ep, struct eqn_box *parent)
+{
+	struct eqn_box	*bp;
+
+	bp = mandoc_calloc(1, sizeof(struct eqn_box));
+	bp->parent = parent;
+	bp->parent->args++;
+	bp->expectargs = UINT_MAX;
+	bp->font = bp->parent->font;
+	bp->size = ep->gsize;
+
+	if (NULL != parent->first) {
+		parent->last->next = bp;
+		bp->prev = parent->last;
+	} else
+		parent->first = bp;
+
+	parent->last = bp;
+	return bp;
+}
+
+/*
+ * Reparent the current last node (of the current parent) under a new
+ * EQN_SUBEXPR as the first element.
+ * Then return the new parent.
+ * The new EQN_SUBEXPR will have a two-child limit.
+ */
+static struct eqn_box *
+eqn_box_makebinary(struct eqn_node *ep, struct eqn_box *parent)
+{
+	struct eqn_box	*b, *newb;
+
+	assert(NULL != parent->last);
+	b = parent->last;
+	if (parent->last == parent->first)
+		parent->first = NULL;
+	parent->args--;
+	parent->last = b->prev;
+	b->prev = NULL;
+	newb = eqn_box_alloc(ep, parent);
+	newb->type = EQN_SUBEXPR;
+	newb->expectargs = 2;
+	newb->args = 1;
+	newb->first = newb->last = b;
+	newb->first->next = NULL;
+	b->parent = newb;
+	return newb;
+}
+
+/*
+ * Parse the "delim" control statement.
+ */
+static void
+eqn_delim(struct eqn_node *ep)
+{
+	if (ep->end[0] == '\0' || ep->end[1] == '\0') {
+		mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+		    ep->node->line, ep->node->pos, "delim");
+		if (ep->end[0] != '\0')
+			ep->end++;
+	} else if (strncmp(ep->end, "off", 3) == 0) {
+		ep->delim = 0;
+		ep->end += 3;
+	} else if (strncmp(ep->end, "on", 2) == 0) {
+		if (ep->odelim && ep->cdelim)
+			ep->delim = 1;
+		ep->end += 2;
+	} else {
+		ep->odelim = *ep->end++;
+		ep->cdelim = *ep->end++;
+		ep->delim = 1;
+	}
+}
+
+/*
+ * Undefine a previously-defined string.
+ */
+static void
+eqn_undef(struct eqn_node *ep)
+{
+	struct eqn_def	*def;
+
+	if (eqn_next(ep, MODE_NOSUB) == EQN_TOK_EOF) {
+		mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+		    ep->node->line, ep->node->pos, "undef");
+		return;
+	}
+	if ((def = eqn_def_find(ep)) == NULL)
+		return;
+	free(def->key);
+	free(def->val);
+	def->key = def->val = NULL;
+	def->keysz = def->valsz = 0;
+}
+
+static void
+eqn_def(struct eqn_node *ep)
+{
+	struct eqn_def	*def;
+	int		 i;
+
+	if (eqn_next(ep, MODE_NOSUB) == EQN_TOK_EOF) {
+		mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+		    ep->node->line, ep->node->pos, "define");
+		return;
+	}
+
+	/*
+	 * Search for a key that already exists.
+	 * Create a new key if none is found.
+	 */
+	if ((def = eqn_def_find(ep)) == NULL) {
+		/* Find holes in string array. */
+		for (i = 0; i < (int)ep->defsz; i++)
+			if (0 == ep->defs[i].keysz)
+				break;
+
+		if (i == (int)ep->defsz) {
+			ep->defsz++;
+			ep->defs = mandoc_reallocarray(ep->defs,
+			    ep->defsz, sizeof(struct eqn_def));
+			ep->defs[i].key = ep->defs[i].val = NULL;
+		}
+
+		def = ep->defs + i;
+		free(def->key);
+		def->key = mandoc_strndup(ep->start, ep->toksz);
+		def->keysz = ep->toksz;
+	}
+
+	if (eqn_next(ep, MODE_QUOTED) == EQN_TOK_EOF) {
+		mandoc_vmsg(MANDOCERR_REQ_EMPTY, ep->parse,
+		    ep->node->line, ep->node->pos, "define %s", def->key);
+		free(def->key);
+		free(def->val);
+		def->key = def->val = NULL;
+		def->keysz = def->valsz = 0;
+		return;
+	}
+	free(def->val);
+	def->val = mandoc_strndup(ep->start, ep->toksz);
+	def->valsz = ep->toksz;
+}
+
+void
+eqn_parse(struct eqn_node *ep)
+{
+	struct eqn_box	*cur, *nbox, *parent, *split;
+	const char	*cp, *cpn;
+	char		*p;
+	enum eqn_tok	 tok;
+	enum { CCL_LET, CCL_DIG, CCL_PUN } ccl, ccln;
+	int		 size;
+
+	parent = ep->node->eqn;
+	assert(parent != NULL);
+
+	/*
+	 * Empty equation.
+	 * Do not add it to the high-level syntax tree.
+	 */
+
+	if (ep->data == NULL)
+		return;
+
+	ep->start = ep->end = ep->data + strspn(ep->data, " ^~");
+
+next_tok:
+	tok = eqn_next(ep, MODE_TOK);
+	switch (tok) {
+	case EQN_TOK_UNDEF:
+		eqn_undef(ep);
+		break;
+	case EQN_TOK_NDEFINE:
+	case EQN_TOK_DEFINE:
+		eqn_def(ep);
+		break;
+	case EQN_TOK_TDEFINE:
+		if (eqn_next(ep, MODE_NOSUB) == EQN_TOK_EOF ||
+		    eqn_next(ep, MODE_QUOTED) == EQN_TOK_EOF)
+			mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+			    ep->node->line, ep->node->pos, "tdefine");
+		break;
+	case EQN_TOK_DELIM:
+		eqn_delim(ep);
+		break;
+	case EQN_TOK_GFONT:
+		if (eqn_next(ep, MODE_SUB) == EQN_TOK_EOF)
+			mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+		break;
+	case EQN_TOK_MARK:
+	case EQN_TOK_LINEUP:
+		/* Ignore these. */
+		break;
+	case EQN_TOK_DYAD:
+	case EQN_TOK_VEC:
+	case EQN_TOK_UNDER:
+	case EQN_TOK_BAR:
+	case EQN_TOK_TILDE:
+	case EQN_TOK_HAT:
+	case EQN_TOK_DOT:
+	case EQN_TOK_DOTDOT:
+		if (parent->last == NULL) {
+			mandoc_msg(MANDOCERR_EQN_NOBOX, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			cur = eqn_box_alloc(ep, parent);
+			cur->type = EQN_TEXT;
+			cur->text = mandoc_strdup("");
+		}
+		parent = eqn_box_makebinary(ep, parent);
+		parent->type = EQN_LIST;
+		parent->expectargs = 1;
+		parent->font = EQNFONT_ROMAN;
+		switch (tok) {
+		case EQN_TOK_DOTDOT:
+			parent->top = mandoc_strdup("\\[ad]");
+			break;
+		case EQN_TOK_VEC:
+			parent->top = mandoc_strdup("\\[->]");
+			break;
+		case EQN_TOK_DYAD:
+			parent->top = mandoc_strdup("\\[<>]");
+			break;
+		case EQN_TOK_TILDE:
+			parent->top = mandoc_strdup("\\[a~]");
+			break;
+		case EQN_TOK_UNDER:
+			parent->bottom = mandoc_strdup("\\[ul]");
+			break;
+		case EQN_TOK_BAR:
+			parent->top = mandoc_strdup("\\[rn]");
+			break;
+		case EQN_TOK_DOT:
+			parent->top = mandoc_strdup("\\[a.]");
+			break;
+		case EQN_TOK_HAT:
+			parent->top = mandoc_strdup("\\[ha]");
+			break;
+		default:
+			abort();
+		}
+		parent = parent->parent;
+		break;
+	case EQN_TOK_FWD:
+	case EQN_TOK_BACK:
+	case EQN_TOK_DOWN:
+	case EQN_TOK_UP:
+		if (eqn_next(ep, MODE_SUB) == EQN_TOK_EOF)
+			mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+		break;
+	case EQN_TOK_FAT:
+	case EQN_TOK_ROMAN:
+	case EQN_TOK_ITALIC:
+	case EQN_TOK_BOLD:
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		/*
+		 * These values apply to the next word or sequence of
+		 * words; thus, we mark that we'll have a child with
+		 * exactly one of those.
+		 */
+		parent = eqn_box_alloc(ep, parent);
+		parent->type = EQN_LIST;
+		parent->expectargs = 1;
+		switch (tok) {
+		case EQN_TOK_FAT:
+			parent->font = EQNFONT_FAT;
+			break;
+		case EQN_TOK_ROMAN:
+			parent->font = EQNFONT_ROMAN;
+			break;
+		case EQN_TOK_ITALIC:
+			parent->font = EQNFONT_ITALIC;
+			break;
+		case EQN_TOK_BOLD:
+			parent->font = EQNFONT_BOLD;
+			break;
+		default:
+			abort();
+		}
+		break;
+	case EQN_TOK_SIZE:
+	case EQN_TOK_GSIZE:
+		/* Accept two values: integral size and a single. */
+		if (eqn_next(ep, MODE_SUB) == EQN_TOK_EOF) {
+			mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			break;
+		}
+		size = mandoc_strntoi(ep->start, ep->toksz, 10);
+		if (-1 == size) {
+			mandoc_msg(MANDOCERR_IT_NONUM, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			break;
+		}
+		if (EQN_TOK_GSIZE == tok) {
+			ep->gsize = size;
+			break;
+		}
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		parent = eqn_box_alloc(ep, parent);
+		parent->type = EQN_LIST;
+		parent->expectargs = 1;
+		parent->size = size;
+		break;
+	case EQN_TOK_FROM:
+	case EQN_TOK_TO:
+	case EQN_TOK_SUB:
+	case EQN_TOK_SUP:
+		/*
+		 * We have a left-right-associative expression.
+		 * Repivot under a positional node, open a child scope
+		 * and keep on reading.
+		 */
+		if (parent->last == NULL) {
+			mandoc_msg(MANDOCERR_EQN_NOBOX, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			cur = eqn_box_alloc(ep, parent);
+			cur->type = EQN_TEXT;
+			cur->text = mandoc_strdup("");
+		}
+		while (parent->expectargs == 1 && parent->args == 1)
+			parent = parent->parent;
+		if (tok == EQN_TOK_FROM || tok == EQN_TOK_TO)  {
+			for (cur = parent; cur != NULL; cur = cur->parent)
+				if (cur->pos == EQNPOS_SUB ||
+				    cur->pos == EQNPOS_SUP ||
+				    cur->pos == EQNPOS_SUBSUP ||
+				    cur->pos == EQNPOS_SQRT ||
+				    cur->pos == EQNPOS_OVER)
+					break;
+			if (cur != NULL)
+				parent = cur->parent;
+		}
+		if (tok == EQN_TOK_SUP && parent->pos == EQNPOS_SUB) {
+			parent->expectargs = 3;
+			parent->pos = EQNPOS_SUBSUP;
+			break;
+		}
+		if (tok == EQN_TOK_TO && parent->pos == EQNPOS_FROM) {
+			parent->expectargs = 3;
+			parent->pos = EQNPOS_FROMTO;
+			break;
+		}
+		parent = eqn_box_makebinary(ep, parent);
+		switch (tok) {
+		case EQN_TOK_FROM:
+			parent->pos = EQNPOS_FROM;
+			break;
+		case EQN_TOK_TO:
+			parent->pos = EQNPOS_TO;
+			break;
+		case EQN_TOK_SUP:
+			parent->pos = EQNPOS_SUP;
+			break;
+		case EQN_TOK_SUB:
+			parent->pos = EQNPOS_SUB;
+			break;
+		default:
+			abort();
+		}
+		break;
+	case EQN_TOK_SQRT:
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		/*
+		 * Accept a left-right-associative set of arguments just
+		 * like sub and sup and friends but without rebalancing
+		 * under a pivot.
+		 */
+		parent = eqn_box_alloc(ep, parent);
+		parent->type = EQN_SUBEXPR;
+		parent->pos = EQNPOS_SQRT;
+		parent->expectargs = 1;
+		break;
+	case EQN_TOK_OVER:
+		/*
+		 * We have a right-left-associative fraction.
+		 * Close out anything that's currently open, then
+		 * rebalance and continue reading.
+		 */
+		if (parent->last == NULL) {
+			mandoc_msg(MANDOCERR_EQN_NOBOX, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			cur = eqn_box_alloc(ep, parent);
+			cur->type = EQN_TEXT;
+			cur->text = mandoc_strdup("");
+		}
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		while (EQN_SUBEXPR == parent->type)
+			parent = parent->parent;
+		parent = eqn_box_makebinary(ep, parent);
+		parent->pos = EQNPOS_OVER;
+		break;
+	case EQN_TOK_RIGHT:
+	case EQN_TOK_BRACE_CLOSE:
+		/*
+		 * Close out the existing brace.
+		 * FIXME: this is a shitty sentinel: we should really
+		 * have a native EQN_BRACE type or whatnot.
+		 */
+		for (cur = parent; cur != NULL; cur = cur->parent)
+			if (cur->type == EQN_LIST &&
+			    cur->expectargs > 1 &&
+			    (tok == EQN_TOK_BRACE_CLOSE ||
+			     cur->left != NULL))
+				break;
+		if (cur == NULL) {
+			mandoc_msg(MANDOCERR_BLK_NOTOPEN, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			break;
+		}
+		parent = cur;
+		if (EQN_TOK_RIGHT == tok) {
+			if (eqn_next(ep, MODE_SUB) == EQN_TOK_EOF) {
+				mandoc_msg(MANDOCERR_REQ_EMPTY,
+				    ep->parse, ep->node->line,
+				    ep->node->pos, eqn_toks[tok]);
+				break;
+			}
+			/* Handling depends on right/left. */
+			if (STRNEQ(ep->start, ep->toksz, "ceiling", 7))
+				parent->right = mandoc_strdup("\\[rc]");
+			else if (STRNEQ(ep->start, ep->toksz, "floor", 5))
+				parent->right = mandoc_strdup("\\[rf]");
+			else
+				parent->right =
+				    mandoc_strndup(ep->start, ep->toksz);
+		}
+		parent = parent->parent;
+		if (tok == EQN_TOK_BRACE_CLOSE &&
+		    (parent->type == EQN_PILE ||
+		     parent->type == EQN_MATRIX))
+			parent = parent->parent;
+		/* Close out any "singleton" lists. */
+		while (parent->type == EQN_LIST &&
+		    parent->expectargs == 1 &&
+		    parent->args == 1)
+			parent = parent->parent;
+		break;
+	case EQN_TOK_BRACE_OPEN:
+	case EQN_TOK_LEFT:
+		/*
+		 * If we already have something in the stack and we're
+		 * in an expression, then rewind til we're not any more
+		 * (just like with the text node).
+		 */
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		if (EQN_TOK_LEFT == tok &&
+		    eqn_next(ep, MODE_SUB) == EQN_TOK_EOF) {
+			mandoc_msg(MANDOCERR_REQ_EMPTY, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			break;
+		}
+		parent = eqn_box_alloc(ep, parent);
+		parent->type = EQN_LIST;
+		if (EQN_TOK_LEFT == tok) {
+			if (STRNEQ(ep->start, ep->toksz, "ceiling", 7))
+				parent->left = mandoc_strdup("\\[lc]");
+			else if (STRNEQ(ep->start, ep->toksz, "floor", 5))
+				parent->left = mandoc_strdup("\\[lf]");
+			else
+				parent->left =
+				    mandoc_strndup(ep->start, ep->toksz);
+		}
+		break;
+	case EQN_TOK_PILE:
+	case EQN_TOK_LPILE:
+	case EQN_TOK_RPILE:
+	case EQN_TOK_CPILE:
+	case EQN_TOK_CCOL:
+	case EQN_TOK_LCOL:
+	case EQN_TOK_RCOL:
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		parent = eqn_box_alloc(ep, parent);
+		parent->type = EQN_PILE;
+		parent->expectargs = 1;
+		break;
+	case EQN_TOK_ABOVE:
+		for (cur = parent; cur != NULL; cur = cur->parent)
+			if (cur->type == EQN_PILE)
+				break;
+		if (cur == NULL) {
+			mandoc_msg(MANDOCERR_IT_STRAY, ep->parse,
+			    ep->node->line, ep->node->pos, eqn_toks[tok]);
+			break;
+		}
+		parent = eqn_box_alloc(ep, cur);
+		parent->type = EQN_LIST;
+		break;
+	case EQN_TOK_MATRIX:
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		parent = eqn_box_alloc(ep, parent);
+		parent->type = EQN_MATRIX;
+		parent->expectargs = 1;
+		break;
+	case EQN_TOK_EOF:
+		return;
+	case EQN_TOK__MAX:
+	case EQN_TOK_FUNC:
+	case EQN_TOK_QUOTED:
+	case EQN_TOK_SYM:
+		p = ep->start;
+		assert(p != NULL);
+		/*
+		 * If we already have something in the stack and we're
+		 * in an expression, then rewind til we're not any more.
+		 */
+		while (parent->args == parent->expectargs)
+			parent = parent->parent;
+		cur = eqn_box_alloc(ep, parent);
+		cur->type = EQN_TEXT;
+		cur->text = p;
+		switch (tok) {
+		case EQN_TOK_FUNC:
+			cur->font = EQNFONT_ROMAN;
+			break;
+		case EQN_TOK_QUOTED:
+			if (cur->font == EQNFONT_NONE)
+				cur->font = EQNFONT_ITALIC;
+			break;
+		case EQN_TOK_SYM:
+			break;
+		default:
+			if (cur->font != EQNFONT_NONE || *p == '\0')
+				break;
+			cpn = p - 1;
+			ccln = CCL_LET;
+			split = NULL;
+			for (;;) {
+				/* Advance to next character. */
+				cp = cpn++;
+				ccl = ccln;
+				ccln = isalpha((unsigned char)*cpn) ? CCL_LET :
+				    isdigit((unsigned char)*cpn) ||
+				    (*cpn == '.' && (ccl == CCL_DIG ||
+				     isdigit((unsigned char)cpn[1]))) ?
+				    CCL_DIG : CCL_PUN;
+				/* No boundary before first character. */
+				if (cp < p)
+					continue;
+				cur->font = ccl == CCL_LET ?
+				    EQNFONT_ITALIC : EQNFONT_ROMAN;
+				if (*cp == '\\')
+					mandoc_escape(&cpn, NULL, NULL);
+				/* No boundary after last character. */
+				if (*cpn == '\0')
+					break;
+				if (ccln == ccl && *cp != ',' && *cpn != ',')
+					continue;
+				/* Boundary found, split the text. */
+				if (parent->args == parent->expectargs) {
+					/* Remove the text from the tree. */
+					if (cur->prev == NULL)
+						parent->first = cur->next;
+					else
+						cur->prev->next = NULL;
+					parent->last = cur->prev;
+					parent->args--;
+					/* Set up a list instead. */
+					split = eqn_box_alloc(ep, parent);
+					split->type = EQN_LIST;
+					/* Insert the word into the list. */
+					split->first = split->last = cur;
+					cur->parent = split;
+					cur->prev = NULL;
+					parent = split;
+				}
+				/* Append a new text box. */
+				nbox = eqn_box_alloc(ep, parent);
+				nbox->type = EQN_TEXT;
+				nbox->text = mandoc_strdup(cpn);
+				/* Truncate the old box. */
+				p = mandoc_strndup(cur->text,
+				    cpn - cur->text);
+				free(cur->text);
+				cur->text = p;
+				/* Setup to process the new box. */
+				cur = nbox;
+				p = nbox->text;
+				cpn = p - 1;
+				ccln = CCL_LET;
+			}
+			if (split != NULL)
+				parent = split->parent;
+			break;
+		}
+		break;
+	default:
+		abort();
+	}
+	goto next_tok;
+}
+
+void
+eqn_free(struct eqn_node *p)
+{
+	int		 i;
+
+	for (i = 0; i < (int)p->defsz; i++) {
+		free(p->defs[i].key);
+		free(p->defs[i].val);
+	}
+
+	free(p->data);
+	free(p->defs);
+	free(p);
+}

Added: vendor/mandoc/dist/eqn_html.c
===================================================================
--- vendor/mandoc/dist/eqn_html.c	                        (rev 0)
+++ vendor/mandoc/dist/eqn_html.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,244 @@
+/*	$Id: eqn_html.c,v 1.17 2017/07/14 13:32:35 schwarze Exp $ */
+/*
+ * Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "out.h"
+#include "html.h"
+
+static void
+eqn_box(struct html *p, const struct eqn_box *bp)
+{
+	struct tag	*post, *row, *cell, *t;
+	const struct eqn_box *child, *parent;
+	const char	*cp;
+	size_t		 i, j, rows;
+	enum htmltag	 tag;
+	enum eqn_fontt	 font;
+
+	if (NULL == bp)
+		return;
+
+	post = NULL;
+
+	/*
+	 * Special handling for a matrix, which is presented to us in
+	 * column order, but must be printed in row-order.
+	 */
+	if (EQN_MATRIX == bp->type) {
+		if (NULL == bp->first)
+			goto out;
+		if (bp->first->type != EQN_LIST ||
+		    bp->first->expectargs == 1) {
+			eqn_box(p, bp->first);
+			goto out;
+		}
+		if (NULL == (parent = bp->first->first))
+			goto out;
+		/* Estimate the number of rows, first. */
+		if (NULL == (child = parent->first))
+			goto out;
+		for (rows = 0; NULL != child; rows++)
+			child = child->next;
+		/* Print row-by-row. */
+		post = print_otag(p, TAG_MTABLE, "");
+		for (i = 0; i < rows; i++) {
+			parent = bp->first->first;
+			row = print_otag(p, TAG_MTR, "");
+			while (NULL != parent) {
+				child = parent->first;
+				for (j = 0; j < i; j++) {
+					if (NULL == child)
+						break;
+					child = child->next;
+				}
+				cell = print_otag(p, TAG_MTD, "");
+				/*
+				 * If we have no data for this
+				 * particular cell, then print a
+				 * placeholder and continue--don't puke.
+				 */
+				if (NULL != child)
+					eqn_box(p, child->first);
+				print_tagq(p, cell);
+				parent = parent->next;
+			}
+			print_tagq(p, row);
+		}
+		goto out;
+	}
+
+	switch (bp->pos) {
+	case EQNPOS_TO:
+		post = print_otag(p, TAG_MOVER, "");
+		break;
+	case EQNPOS_SUP:
+		post = print_otag(p, TAG_MSUP, "");
+		break;
+	case EQNPOS_FROM:
+		post = print_otag(p, TAG_MUNDER, "");
+		break;
+	case EQNPOS_SUB:
+		post = print_otag(p, TAG_MSUB, "");
+		break;
+	case EQNPOS_OVER:
+		post = print_otag(p, TAG_MFRAC, "");
+		break;
+	case EQNPOS_FROMTO:
+		post = print_otag(p, TAG_MUNDEROVER, "");
+		break;
+	case EQNPOS_SUBSUP:
+		post = print_otag(p, TAG_MSUBSUP, "");
+		break;
+	case EQNPOS_SQRT:
+		post = print_otag(p, TAG_MSQRT, "");
+		break;
+	default:
+		break;
+	}
+
+	if (bp->top || bp->bottom) {
+		assert(NULL == post);
+		if (bp->top && NULL == bp->bottom)
+			post = print_otag(p, TAG_MOVER, "");
+		else if (bp->top && bp->bottom)
+			post = print_otag(p, TAG_MUNDEROVER, "");
+		else if (bp->bottom)
+			post = print_otag(p, TAG_MUNDER, "");
+	}
+
+	if (EQN_PILE == bp->type) {
+		assert(NULL == post);
+		if (bp->first != NULL &&
+		    bp->first->type == EQN_LIST &&
+		    bp->first->expectargs > 1)
+			post = print_otag(p, TAG_MTABLE, "");
+	} else if (bp->type == EQN_LIST && bp->expectargs > 1 &&
+	    bp->parent && bp->parent->type == EQN_PILE) {
+		assert(NULL == post);
+		post = print_otag(p, TAG_MTR, "");
+		print_otag(p, TAG_MTD, "");
+	}
+
+	if (bp->text != NULL) {
+		assert(post == NULL);
+		tag = TAG_MI;
+		cp = bp->text;
+		if (isdigit((unsigned char)cp[0]) ||
+		    (cp[0] == '.' && isdigit((unsigned char)cp[1]))) {
+			tag = TAG_MN;
+			while (*++cp != '\0') {
+				if (*cp != '.' &&
+				    isdigit((unsigned char)*cp) == 0) {
+					tag = TAG_MI;
+					break;
+				}
+			}
+		} else if (*cp != '\0' && isalpha((unsigned char)*cp) == 0) {
+			tag = TAG_MO;
+			while (*cp != '\0') {
+				if (cp[0] == '\\' && cp[1] != '\0') {
+					cp++;
+					mandoc_escape(&cp, NULL, NULL);
+				} else if (isalnum((unsigned char)*cp)) {
+					tag = TAG_MI;
+					break;
+				} else
+					cp++;
+			}
+		}
+		font = bp->font;
+		if (bp->text[0] != '\0' &&
+		    (((tag == TAG_MN || tag == TAG_MO) &&
+		      font == EQNFONT_ROMAN) ||
+		     (tag == TAG_MI && font == (bp->text[1] == '\0' ?
+		      EQNFONT_ITALIC : EQNFONT_ROMAN))))
+			font = EQNFONT_NONE;
+		switch (font) {
+		case EQNFONT_NONE:
+			post = print_otag(p, tag, "");
+			break;
+		case EQNFONT_ROMAN:
+			post = print_otag(p, tag, "?", "fontstyle", "normal");
+			break;
+		case EQNFONT_BOLD:
+		case EQNFONT_FAT:
+			post = print_otag(p, tag, "?", "fontweight", "bold");
+			break;
+		case EQNFONT_ITALIC:
+			post = print_otag(p, tag, "?", "fontstyle", "italic");
+			break;
+		default:
+			abort();
+		}
+		print_text(p, bp->text);
+	} else if (NULL == post) {
+		if (NULL != bp->left || NULL != bp->right)
+			post = print_otag(p, TAG_MFENCED, "??",
+			    "open", bp->left == NULL ? "" : bp->left,
+			    "close", bp->right == NULL ? "" : bp->right);
+		if (NULL == post)
+			post = print_otag(p, TAG_MROW, "");
+		else
+			print_otag(p, TAG_MROW, "");
+	}
+
+	eqn_box(p, bp->first);
+
+out:
+	if (NULL != bp->bottom) {
+		t = print_otag(p, TAG_MO, "");
+		print_text(p, bp->bottom);
+		print_tagq(p, t);
+	}
+	if (NULL != bp->top) {
+		t = print_otag(p, TAG_MO, "");
+		print_text(p, bp->top);
+		print_tagq(p, t);
+	}
+
+	if (NULL != post)
+		print_tagq(p, post);
+
+	eqn_box(p, bp->next);
+}
+
+void
+print_eqn(struct html *p, const struct eqn_box *bp)
+{
+	struct tag	*t;
+
+	if (bp->first == NULL)
+		return;
+
+	t = print_otag(p, TAG_MATH, "c", "eqn");
+
+	p->flags |= HTML_NONOSPACE;
+	eqn_box(p, bp);
+	p->flags &= ~HTML_NONOSPACE;
+
+	print_tagq(p, t);
+}

Added: vendor/mandoc/dist/eqn_term.c
===================================================================
--- vendor/mandoc/dist/eqn_term.c	                        (rev 0)
+++ vendor/mandoc/dist/eqn_term.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,154 @@
+/*	$Id: eqn_term.c,v 1.13 2017/07/08 14:51:04 schwarze Exp $ */
+/*
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "out.h"
+#include "term.h"
+
+static	const enum termfont fontmap[EQNFONT__MAX] = {
+	TERMFONT_NONE, /* EQNFONT_NONE */
+	TERMFONT_NONE, /* EQNFONT_ROMAN */
+	TERMFONT_BOLD, /* EQNFONT_BOLD */
+	TERMFONT_BOLD, /* EQNFONT_FAT */
+	TERMFONT_UNDER /* EQNFONT_ITALIC */
+};
+
+static void	eqn_box(struct termp *, const struct eqn_box *);
+
+
+void
+term_eqn(struct termp *p, const struct eqn_box *bp)
+{
+
+	eqn_box(p, bp);
+	p->flags &= ~TERMP_NOSPACE;
+}
+
+static void
+eqn_box(struct termp *p, const struct eqn_box *bp)
+{
+	const struct eqn_box *child;
+	int delim;
+
+	/* Delimiters around this box? */
+
+	if ((bp->type == EQN_LIST && bp->expectargs > 1) ||
+	    (bp->type == EQN_PILE && (bp->prev || bp->next)) ||
+	    (bp->parent != NULL && (bp->parent->pos == EQNPOS_SQRT ||
+	    /* Diacritic followed by ^ or _. */
+	    ((bp->top != NULL || bp->bottom != NULL) &&
+	     bp->parent->type == EQN_SUBEXPR &&
+	     bp->parent->pos != EQNPOS_OVER && bp->next != NULL) ||
+	    /* Nested over, sub, sup, from, to. */
+	    (bp->type == EQN_SUBEXPR && bp->pos != EQNPOS_SQRT &&
+	     ((bp->parent->type == EQN_LIST && bp->expectargs == 1) ||
+	      (bp->parent->type == EQN_SUBEXPR &&
+	       bp->pos != EQNPOS_SQRT)))))) {
+		if (bp->parent->type == EQN_SUBEXPR && bp->prev != NULL)
+			p->flags |= TERMP_NOSPACE;
+		term_word(p, bp->left != NULL ? bp->left : "(");
+		p->flags |= TERMP_NOSPACE;
+		delim = 1;
+	} else
+		delim = 0;
+
+	/* Handle Fonts and text. */
+
+	if (bp->font != EQNFONT_NONE)
+		term_fontpush(p, fontmap[(int)bp->font]);
+
+	if (bp->text != NULL)
+		term_word(p, bp->text);
+
+	/* Special box types. */
+
+	if (bp->pos == EQNPOS_SQRT) {
+		term_word(p, "sqrt");
+		if (bp->first != NULL) {
+			p->flags |= TERMP_NOSPACE;
+			eqn_box(p, bp->first);
+		}
+	} else if (bp->type == EQN_SUBEXPR) {
+		child = bp->first;
+		eqn_box(p, child);
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, bp->pos == EQNPOS_OVER ? "/" :
+		    (bp->pos == EQNPOS_SUP ||
+		     bp->pos == EQNPOS_TO) ? "^" : "_");
+		p->flags |= TERMP_NOSPACE;
+		child = child->next;
+		if (child != NULL) {
+			eqn_box(p, child);
+			if (bp->pos == EQNPOS_FROMTO ||
+			    bp->pos == EQNPOS_SUBSUP) {
+				p->flags |= TERMP_NOSPACE;
+				term_word(p, "^");
+				p->flags |= TERMP_NOSPACE;
+				child = child->next;
+				if (child != NULL)
+					eqn_box(p, child);
+			}
+		}
+	} else {
+		child = bp->first;
+		if (bp->type == EQN_MATRIX &&
+		    child != NULL &&
+		    child->type == EQN_LIST &&
+		    child->expectargs > 1)
+			child = child->first;
+		while (child != NULL) {
+			eqn_box(p,
+			    bp->type == EQN_PILE &&
+			    child->type == EQN_LIST &&
+			    child->expectargs > 1 &&
+			    child->args == 1 ?
+			    child->first : child);
+			child = child->next;
+		}
+	}
+
+	/* Handle Fonts and diacritics. */
+
+	if (bp->font != EQNFONT_NONE)
+		term_fontpop(p);
+	if (bp->top != NULL) {
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, bp->top);
+	}
+	if (bp->bottom != NULL) {
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, "_");
+	}
+
+	/* Right delimiter after this box? */
+
+	if (delim) {
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, bp->right != NULL ? bp->right : ")");
+		if (bp->parent->type == EQN_SUBEXPR && bp->next != NULL)
+			p->flags |= TERMP_NOSPACE;
+	}
+}

Added: vendor/mandoc/dist/gmdiff
===================================================================
--- vendor/mandoc/dist/gmdiff	                        (rev 0)
+++ vendor/mandoc/dist/gmdiff	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,54 @@
+#!/bin/sh
+# Copyright (c) 2013, 2014 Ingo Schwarze <schwarze at openbsd.org>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+if [ `id -u` -eq 0 ]; then
+  echo "$0: do not run me as root"
+  exit 1
+fi
+
+if [ $# -eq 0 ]; then
+  echo "usage: $0 [-h] manual_source_file ..."
+  exit 1
+fi
+
+if [ "X$1" = "X-h" ]; then
+  shift
+  export PATH="/usr/local/heirloom-doctools/bin:$PATH"
+  EQN="neqn"
+  ROFF="nroff"
+  MOPT="-Omdoc $MOPT"
+elif [ "X$1" = "X-u" ]; then
+  shift
+  ROFF="groff -ket -ww -Tutf8 -P -c"
+  MOPT="-Werror -Tutf8 $MOPT"
+else
+  ROFF="groff -et -ww -Tascii -P -c"
+  MOPT="-Werror -Tascii $MOPT"
+fi
+
+while [ -n "$1" ]; do
+  file=$1
+  shift
+  echo " ========== $file ========== "
+  $ROFF -mandoc $file 2> /tmp/roff.err > /tmp/roff.out
+  ${MANDOC:=mandoc} -Ios=OpenBSD $MOPT $file \
+    2> /tmp/mandoc.err > /tmp/mandoc.out
+  for i in roff mandoc; do
+    [ -s /tmp/$i.err ] && echo "$i errors:" && cat /tmp/$i.err
+  done
+  diff -au /tmp/roff.out /tmp/mandoc.out 2>&1
+done
+
+exit 0

Added: vendor/mandoc/dist/html.c
===================================================================
--- vendor/mandoc/dist/html.c	                        (rev 0)
+++ vendor/mandoc/dist/html.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,979 @@
+/*	$Id: html.c,v 1.219 2017/07/15 17:57:51 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "out.h"
+#include "html.h"
+#include "manconf.h"
+#include "main.h"
+
+struct	htmldata {
+	const char	 *name;
+	int		  flags;
+#define	HTML_NOSTACK	 (1 << 0)
+#define	HTML_AUTOCLOSE	 (1 << 1)
+#define	HTML_NLBEFORE	 (1 << 2)
+#define	HTML_NLBEGIN	 (1 << 3)
+#define	HTML_NLEND	 (1 << 4)
+#define	HTML_NLAFTER	 (1 << 5)
+#define	HTML_NLAROUND	 (HTML_NLBEFORE | HTML_NLAFTER)
+#define	HTML_NLINSIDE	 (HTML_NLBEGIN | HTML_NLEND)
+#define	HTML_NLALL	 (HTML_NLAROUND | HTML_NLINSIDE)
+#define	HTML_INDENT	 (1 << 6)
+#define	HTML_NOINDENT	 (1 << 7)
+};
+
+static	const struct htmldata htmltags[TAG_MAX] = {
+	{"html",	HTML_NLALL},
+	{"head",	HTML_NLALL | HTML_INDENT},
+	{"body",	HTML_NLALL},
+	{"meta",	HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+	{"title",	HTML_NLAROUND},
+	{"div",		HTML_NLAROUND},
+	{"h1",		HTML_NLAROUND},
+	{"h2",		HTML_NLAROUND},
+	{"span",	0},
+	{"link",	HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+	{"br",		HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+	{"a",		0},
+	{"table",	HTML_NLALL | HTML_INDENT},
+	{"colgroup",	HTML_NLALL | HTML_INDENT},
+	{"col",		HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+	{"tr",		HTML_NLALL | HTML_INDENT},
+	{"td",		HTML_NLAROUND},
+	{"li",		HTML_NLAROUND | HTML_INDENT},
+	{"ul",		HTML_NLALL | HTML_INDENT},
+	{"ol",		HTML_NLALL | HTML_INDENT},
+	{"dl",		HTML_NLALL | HTML_INDENT},
+	{"dt",		HTML_NLAROUND},
+	{"dd",		HTML_NLAROUND | HTML_INDENT},
+	{"pre",		HTML_NLALL | HTML_NOINDENT},
+	{"var",		0},
+	{"cite",	0},
+	{"b",		0},
+	{"i",		0},
+	{"code",	0},
+	{"small",	0},
+	{"style",	HTML_NLALL | HTML_INDENT},
+	{"math",	HTML_NLALL | HTML_INDENT},
+	{"mrow",	0},
+	{"mi",		0},
+	{"mn",		0},
+	{"mo",		0},
+	{"msup",	0},
+	{"msub",	0},
+	{"msubsup",	0},
+	{"mfrac",	0},
+	{"msqrt",	0},
+	{"mfenced",	0},
+	{"mtable",	0},
+	{"mtr",		0},
+	{"mtd",		0},
+	{"munderover",	0},
+	{"munder",	0},
+	{"mover",	0},
+};
+
+static	const char	*const roffscales[SCALE_MAX] = {
+	"cm", /* SCALE_CM */
+	"in", /* SCALE_IN */
+	"pc", /* SCALE_PC */
+	"pt", /* SCALE_PT */
+	"em", /* SCALE_EM */
+	"em", /* SCALE_MM */
+	"ex", /* SCALE_EN */
+	"ex", /* SCALE_BU */
+	"em", /* SCALE_VS */
+	"ex", /* SCALE_FS */
+};
+
+static	void	 a2width(const char *, struct roffsu *);
+static	void	 print_byte(struct html *, char);
+static	void	 print_endword(struct html *);
+static	void	 print_indent(struct html *);
+static	void	 print_word(struct html *, const char *);
+
+static	void	 print_ctag(struct html *, struct tag *);
+static	int	 print_escape(struct html *, char);
+static	int	 print_encode(struct html *, const char *, const char *, int);
+static	void	 print_href(struct html *, const char *, const char *, int);
+static	void	 print_metaf(struct html *, enum mandoc_esc);
+
+
+void *
+html_alloc(const struct manoutput *outopts)
+{
+	struct html	*h;
+
+	h = mandoc_calloc(1, sizeof(struct html));
+
+	h->tag = NULL;
+	h->style = outopts->style;
+	h->base_man = outopts->man;
+	h->base_includes = outopts->includes;
+	if (outopts->fragment)
+		h->oflags |= HTML_FRAGMENT;
+
+	return h;
+}
+
+void
+html_free(void *p)
+{
+	struct tag	*tag;
+	struct html	*h;
+
+	h = (struct html *)p;
+
+	while ((tag = h->tag) != NULL) {
+		h->tag = tag->next;
+		free(tag);
+	}
+
+	free(h);
+}
+
+void
+print_gen_head(struct html *h)
+{
+	struct tag	*t;
+
+	print_otag(h, TAG_META, "?", "charset", "utf-8");
+
+	/*
+	 * Print a default style-sheet.
+	 */
+
+	t = print_otag(h, TAG_STYLE, "");
+	print_text(h, "table.head, table.foot { width: 100%; }");
+	print_endline(h);
+	print_text(h, "td.head-rtitle, td.foot-os { text-align: right; }");
+	print_endline(h);
+	print_text(h, "td.head-vol { text-align: center; }");
+	print_endline(h);
+	print_text(h, "div.Pp { margin: 1ex 0ex; }");
+	print_tagq(h, t);
+
+	if (h->style)
+		print_otag(h, TAG_LINK, "?h??", "rel", "stylesheet",
+		    h->style, "type", "text/css", "media", "all");
+}
+
+static void
+print_metaf(struct html *h, enum mandoc_esc deco)
+{
+	enum htmlfont	 font;
+
+	switch (deco) {
+	case ESCAPE_FONTPREV:
+		font = h->metal;
+		break;
+	case ESCAPE_FONTITALIC:
+		font = HTMLFONT_ITALIC;
+		break;
+	case ESCAPE_FONTBOLD:
+		font = HTMLFONT_BOLD;
+		break;
+	case ESCAPE_FONTBI:
+		font = HTMLFONT_BI;
+		break;
+	case ESCAPE_FONT:
+	case ESCAPE_FONTROMAN:
+		font = HTMLFONT_NONE;
+		break;
+	default:
+		abort();
+	}
+
+	if (h->metaf) {
+		print_tagq(h, h->metaf);
+		h->metaf = NULL;
+	}
+
+	h->metal = h->metac;
+	h->metac = font;
+
+	switch (font) {
+	case HTMLFONT_ITALIC:
+		h->metaf = print_otag(h, TAG_I, "");
+		break;
+	case HTMLFONT_BOLD:
+		h->metaf = print_otag(h, TAG_B, "");
+		break;
+	case HTMLFONT_BI:
+		h->metaf = print_otag(h, TAG_B, "");
+		print_otag(h, TAG_I, "");
+		break;
+	default:
+		break;
+	}
+}
+
+char *
+html_make_id(const struct roff_node *n)
+{
+	const struct roff_node	*nch;
+	char			*buf, *cp;
+
+	for (nch = n->child; nch != NULL; nch = nch->next)
+		if (nch->type != ROFFT_TEXT)
+			return NULL;
+
+	buf = NULL;
+	deroff(&buf, n);
+
+	/* http://www.w3.org/TR/html5/dom.html#the-id-attribute */
+
+	for (cp = buf; *cp != '\0'; cp++)
+		if (*cp == ' ')
+			*cp = '_';
+
+	return buf;
+}
+
+int
+html_strlen(const char *cp)
+{
+	size_t		 rsz;
+	int		 skip, sz;
+
+	/*
+	 * Account for escaped sequences within string length
+	 * calculations.  This follows the logic in term_strlen() as we
+	 * must calculate the width of produced strings.
+	 * Assume that characters are always width of "1".  This is
+	 * hacky, but it gets the job done for approximation of widths.
+	 */
+
+	sz = 0;
+	skip = 0;
+	while (1) {
+		rsz = strcspn(cp, "\\");
+		if (rsz) {
+			cp += rsz;
+			if (skip) {
+				skip = 0;
+				rsz--;
+			}
+			sz += rsz;
+		}
+		if ('\0' == *cp)
+			break;
+		cp++;
+		switch (mandoc_escape(&cp, NULL, NULL)) {
+		case ESCAPE_ERROR:
+			return sz;
+		case ESCAPE_UNICODE:
+		case ESCAPE_NUMBERED:
+		case ESCAPE_SPECIAL:
+		case ESCAPE_OVERSTRIKE:
+			if (skip)
+				skip = 0;
+			else
+				sz++;
+			break;
+		case ESCAPE_SKIPCHAR:
+			skip = 1;
+			break;
+		default:
+			break;
+		}
+	}
+	return sz;
+}
+
+static int
+print_escape(struct html *h, char c)
+{
+
+	switch (c) {
+	case '<':
+		print_word(h, "<");
+		break;
+	case '>':
+		print_word(h, ">");
+		break;
+	case '&':
+		print_word(h, "&");
+		break;
+	case '"':
+		print_word(h, """);
+		break;
+	case ASCII_NBRSP:
+		print_word(h, " ");
+		break;
+	case ASCII_HYPH:
+		print_byte(h, '-');
+		break;
+	case ASCII_BREAK:
+		break;
+	default:
+		return 0;
+	}
+	return 1;
+}
+
+static int
+print_encode(struct html *h, const char *p, const char *pend, int norecurse)
+{
+	char		 numbuf[16];
+	struct tag	*t;
+	const char	*seq;
+	size_t		 sz;
+	int		 c, len, breakline, nospace;
+	enum mandoc_esc	 esc;
+	static const char rejs[10] = { ' ', '\\', '<', '>', '&', '"',
+		ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
+
+	if (pend == NULL)
+		pend = strchr(p, '\0');
+
+	breakline = 0;
+	nospace = 0;
+
+	while (p < pend) {
+		if (HTML_SKIPCHAR & h->flags && '\\' != *p) {
+			h->flags &= ~HTML_SKIPCHAR;
+			p++;
+			continue;
+		}
+
+		for (sz = strcspn(p, rejs); sz-- && p < pend; p++)
+			print_byte(h, *p);
+
+		if (breakline &&
+		    (p >= pend || *p == ' ' || *p == ASCII_NBRSP)) {
+			t = print_otag(h, TAG_DIV, "");
+			print_text(h, "\\~");
+			print_tagq(h, t);
+			breakline = 0;
+			while (p < pend && (*p == ' ' || *p == ASCII_NBRSP))
+				p++;
+			continue;
+		}
+
+		if (p >= pend)
+			break;
+
+		if (*p == ' ') {
+			print_endword(h);
+			p++;
+			continue;
+		}
+
+		if (print_escape(h, *p++))
+			continue;
+
+		esc = mandoc_escape(&p, &seq, &len);
+		if (ESCAPE_ERROR == esc)
+			break;
+
+		switch (esc) {
+		case ESCAPE_FONT:
+		case ESCAPE_FONTPREV:
+		case ESCAPE_FONTBOLD:
+		case ESCAPE_FONTITALIC:
+		case ESCAPE_FONTBI:
+		case ESCAPE_FONTROMAN:
+			if (0 == norecurse)
+				print_metaf(h, esc);
+			continue;
+		case ESCAPE_SKIPCHAR:
+			h->flags |= HTML_SKIPCHAR;
+			continue;
+		default:
+			break;
+		}
+
+		if (h->flags & HTML_SKIPCHAR) {
+			h->flags &= ~HTML_SKIPCHAR;
+			continue;
+		}
+
+		switch (esc) {
+		case ESCAPE_UNICODE:
+			/* Skip past "u" header. */
+			c = mchars_num2uc(seq + 1, len - 1);
+			break;
+		case ESCAPE_NUMBERED:
+			c = mchars_num2char(seq, len);
+			if (c < 0)
+				continue;
+			break;
+		case ESCAPE_SPECIAL:
+			c = mchars_spec2cp(seq, len);
+			if (c <= 0)
+				continue;
+			break;
+		case ESCAPE_BREAK:
+			breakline = 1;
+			continue;
+		case ESCAPE_NOSPACE:
+			if ('\0' == *p)
+				nospace = 1;
+			continue;
+		case ESCAPE_OVERSTRIKE:
+			if (len == 0)
+				continue;
+			c = seq[len - 1];
+			break;
+		default:
+			continue;
+		}
+		if ((c < 0x20 && c != 0x09) ||
+		    (c > 0x7E && c < 0xA0))
+			c = 0xFFFD;
+		if (c > 0x7E) {
+			(void)snprintf(numbuf, sizeof(numbuf), "&#x%.4X;", c);
+			print_word(h, numbuf);
+		} else if (print_escape(h, c) == 0)
+			print_byte(h, c);
+	}
+
+	return nospace;
+}
+
+static void
+print_href(struct html *h, const char *name, const char *sec, int man)
+{
+	const char	*p, *pp;
+
+	pp = man ? h->base_man : h->base_includes;
+	while ((p = strchr(pp, '%')) != NULL) {
+		print_encode(h, pp, p, 1);
+		if (man && p[1] == 'S') {
+			if (sec == NULL)
+				print_byte(h, '1');
+			else
+				print_encode(h, sec, NULL, 1);
+		} else if ((man && p[1] == 'N') ||
+		    (man == 0 && p[1] == 'I'))
+			print_encode(h, name, NULL, 1);
+		else
+			print_encode(h, p, p + 2, 1);
+		pp = p + 2;
+	}
+	if (*pp != '\0')
+		print_encode(h, pp, NULL, 1);
+}
+
+struct tag *
+print_otag(struct html *h, enum htmltag tag, const char *fmt, ...)
+{
+	va_list		 ap;
+	struct roffsu	 mysu, *su;
+	char		 numbuf[16];
+	struct tag	*t;
+	const char	*attr;
+	char		*arg1, *arg2;
+	double		 v;
+	int		 i, have_style, tflags;
+
+	tflags = htmltags[tag].flags;
+
+	/* Push this tag onto the stack of open scopes. */
+
+	if ((tflags & HTML_NOSTACK) == 0) {
+		t = mandoc_malloc(sizeof(struct tag));
+		t->tag = tag;
+		t->next = h->tag;
+		h->tag = t;
+	} else
+		t = NULL;
+
+	if (tflags & HTML_NLBEFORE)
+		print_endline(h);
+	if (h->col == 0)
+		print_indent(h);
+	else if ((h->flags & HTML_NOSPACE) == 0) {
+		if (h->flags & HTML_KEEP)
+			print_word(h, "&#x00A0;");
+		else {
+			if (h->flags & HTML_PREKEEP)
+				h->flags |= HTML_KEEP;
+			print_endword(h);
+		}
+	}
+
+	if ( ! (h->flags & HTML_NONOSPACE))
+		h->flags &= ~HTML_NOSPACE;
+	else
+		h->flags |= HTML_NOSPACE;
+
+	/* Print out the tag name and attributes. */
+
+	print_byte(h, '<');
+	print_word(h, htmltags[tag].name);
+
+	va_start(ap, fmt);
+
+	have_style = 0;
+	while (*fmt != '\0') {
+		if (*fmt == 's') {
+			have_style = 1;
+			fmt++;
+			break;
+		}
+
+		/* Parse a non-style attribute and its arguments. */
+
+		arg1 = va_arg(ap, char *);
+		switch (*fmt++) {
+		case 'c':
+			attr = "class";
+			break;
+		case 'h':
+			attr = "href";
+			break;
+		case 'i':
+			attr = "id";
+			break;
+		case '?':
+			attr = arg1;
+			arg1 = va_arg(ap, char *);
+			break;
+		default:
+			abort();
+		}
+		arg2 = NULL;
+		if (*fmt == 'M')
+			arg2 = va_arg(ap, char *);
+		if (arg1 == NULL)
+			continue;
+
+		/* Print the non-style attributes. */
+
+		print_byte(h, ' ');
+		print_word(h, attr);
+		print_byte(h, '=');
+		print_byte(h, '"');
+		switch (*fmt) {
+		case 'I':
+			print_href(h, arg1, NULL, 0);
+			fmt++;
+			break;
+		case 'M':
+			print_href(h, arg1, arg2, 1);
+			fmt++;
+			break;
+		case 'R':
+			print_byte(h, '#');
+			print_encode(h, arg1, NULL, 1);
+			fmt++;
+			break;
+		case 'T':
+			print_encode(h, arg1, NULL, 1);
+			print_word(h, "\" title=\"");
+			print_encode(h, arg1, NULL, 1);
+			fmt++;
+			break;
+		default:
+			print_encode(h, arg1, NULL, 1);
+			break;
+		}
+		print_byte(h, '"');
+	}
+
+	/* Print out styles. */
+
+	while (*fmt != '\0') {
+		arg1 = NULL;
+		su = NULL;
+
+		/* First letter: input argument type. */
+
+		switch (*fmt++) {
+		case 'h':
+			i = va_arg(ap, int);
+			su = &mysu;
+			SCALE_HS_INIT(su, i);
+			break;
+		case 's':
+			arg1 = va_arg(ap, char *);
+			break;
+		case 'u':
+			su = va_arg(ap, struct roffsu *);
+			break;
+		case 'w':
+			if ((arg2 = va_arg(ap, char *)) != NULL) {
+				su = &mysu;
+				a2width(arg2, su);
+			}
+			if (*fmt == '*') {
+				if (su != NULL && su->unit == SCALE_EN &&
+				    su->scale > 5.9 && su->scale < 6.1)
+					su = NULL;
+				fmt++;
+			}
+			if (*fmt == '+') {
+				if (su != NULL) {
+					/* Make even bold text fit. */
+					su->scale *= 1.2;
+					/* Add padding. */
+					su->scale += 3.0;
+				}
+				fmt++;
+			}
+			if (*fmt == '-') {
+				if (su != NULL)
+					su->scale *= -1.0;
+				fmt++;
+			}
+			break;
+		default:
+			abort();
+		}
+
+		/* Second letter: style name. */
+
+		switch (*fmt++) {
+		case 'h':
+			attr = "height";
+			break;
+		case 'i':
+			attr = "text-indent";
+			break;
+		case 'l':
+			attr = "margin-left";
+			break;
+		case 'w':
+			attr = "width";
+			break;
+		case 'W':
+			attr = "min-width";
+			break;
+		case '?':
+			attr = arg1;
+			arg1 = va_arg(ap, char *);
+			break;
+		default:
+			abort();
+		}
+		if (su == NULL && arg1 == NULL)
+			continue;
+
+		if (have_style == 1)
+			print_word(h, " style=\"");
+		else
+			print_byte(h, ' ');
+		print_word(h, attr);
+		print_byte(h, ':');
+		print_byte(h, ' ');
+		if (su != NULL) {
+			v = su->scale;
+			if (su->unit == SCALE_MM && (v /= 100.0) == 0.0)
+				v = 1.0;
+			else if (su->unit == SCALE_BU)
+				v /= 24.0;
+			(void)snprintf(numbuf, sizeof(numbuf), "%.2f", v);
+			print_word(h, numbuf);
+			print_word(h, roffscales[su->unit]);
+		} else
+			print_word(h, arg1);
+		print_byte(h, ';');
+		have_style = 2;
+	}
+	if (have_style == 2)
+		print_byte(h, '"');
+
+	va_end(ap);
+
+	/* Accommodate for "well-formed" singleton escaping. */
+
+	if (HTML_AUTOCLOSE & htmltags[tag].flags)
+		print_byte(h, '/');
+
+	print_byte(h, '>');
+
+	if (tflags & HTML_NLBEGIN)
+		print_endline(h);
+	else
+		h->flags |= HTML_NOSPACE;
+
+	if (tflags & HTML_INDENT)
+		h->indent++;
+	if (tflags & HTML_NOINDENT)
+		h->noindent++;
+
+	return t;
+}
+
+static void
+print_ctag(struct html *h, struct tag *tag)
+{
+	int	 tflags;
+
+	/*
+	 * Remember to close out and nullify the current
+	 * meta-font and table, if applicable.
+	 */
+	if (tag == h->metaf)
+		h->metaf = NULL;
+	if (tag == h->tblt)
+		h->tblt = NULL;
+
+	tflags = htmltags[tag->tag].flags;
+
+	if (tflags & HTML_INDENT)
+		h->indent--;
+	if (tflags & HTML_NOINDENT)
+		h->noindent--;
+	if (tflags & HTML_NLEND)
+		print_endline(h);
+	print_indent(h);
+	print_byte(h, '<');
+	print_byte(h, '/');
+	print_word(h, htmltags[tag->tag].name);
+	print_byte(h, '>');
+	if (tflags & HTML_NLAFTER)
+		print_endline(h);
+
+	h->tag = tag->next;
+	free(tag);
+}
+
+void
+print_gen_decls(struct html *h)
+{
+	print_word(h, "<!DOCTYPE html>");
+	print_endline(h);
+}
+
+void
+print_text(struct html *h, const char *word)
+{
+	if (h->col && (h->flags & HTML_NOSPACE) == 0) {
+		if ( ! (HTML_KEEP & h->flags)) {
+			if (HTML_PREKEEP & h->flags)
+				h->flags |= HTML_KEEP;
+			print_endword(h);
+		} else
+			print_word(h, "&#x00A0;");
+	}
+
+	assert(NULL == h->metaf);
+	switch (h->metac) {
+	case HTMLFONT_ITALIC:
+		h->metaf = print_otag(h, TAG_I, "");
+		break;
+	case HTMLFONT_BOLD:
+		h->metaf = print_otag(h, TAG_B, "");
+		break;
+	case HTMLFONT_BI:
+		h->metaf = print_otag(h, TAG_B, "");
+		print_otag(h, TAG_I, "");
+		break;
+	default:
+		print_indent(h);
+		break;
+	}
+
+	assert(word);
+	if ( ! print_encode(h, word, NULL, 0)) {
+		if ( ! (h->flags & HTML_NONOSPACE))
+			h->flags &= ~HTML_NOSPACE;
+		h->flags &= ~HTML_NONEWLINE;
+	} else
+		h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
+
+	if (h->metaf) {
+		print_tagq(h, h->metaf);
+		h->metaf = NULL;
+	}
+
+	h->flags &= ~HTML_IGNDELIM;
+}
+
+void
+print_tagq(struct html *h, const struct tag *until)
+{
+	struct tag	*tag;
+
+	while ((tag = h->tag) != NULL) {
+		print_ctag(h, tag);
+		if (until && tag == until)
+			return;
+	}
+}
+
+void
+print_stagq(struct html *h, const struct tag *suntil)
+{
+	struct tag	*tag;
+
+	while ((tag = h->tag) != NULL) {
+		if (suntil && tag == suntil)
+			return;
+		print_ctag(h, tag);
+	}
+}
+
+void
+print_paragraph(struct html *h)
+{
+	struct tag	*t;
+
+	t = print_otag(h, TAG_DIV, "c", "Pp");
+	print_tagq(h, t);
+}
+
+
+/***********************************************************************
+ * Low level output functions.
+ * They implement line breaking using a short static buffer.
+ ***********************************************************************/
+
+/*
+ * Buffer one HTML output byte.
+ * If the buffer is full, flush and deactivate it and start a new line.
+ * If the buffer is inactive, print directly.
+ */
+static void
+print_byte(struct html *h, char c)
+{
+	if ((h->flags & HTML_BUFFER) == 0) {
+		putchar(c);
+		h->col++;
+		return;
+	}
+
+	if (h->col + h->bufcol < sizeof(h->buf)) {
+		h->buf[h->bufcol++] = c;
+		return;
+	}
+
+	putchar('\n');
+	h->col = 0;
+	print_indent(h);
+	putchar(' ');
+	putchar(' ');
+	fwrite(h->buf, h->bufcol, 1, stdout);
+	putchar(c);
+	h->col = (h->indent + 1) * 2 + h->bufcol + 1;
+	h->bufcol = 0;
+	h->flags &= ~HTML_BUFFER;
+}
+
+/*
+ * If something was printed on the current output line, end it.
+ * Not to be called right after print_indent().
+ */
+void
+print_endline(struct html *h)
+{
+	if (h->col == 0)
+		return;
+
+	if (h->bufcol) {
+		putchar(' ');
+		fwrite(h->buf, h->bufcol, 1, stdout);
+		h->bufcol = 0;
+	}
+	putchar('\n');
+	h->col = 0;
+	h->flags |= HTML_NOSPACE;
+	h->flags &= ~HTML_BUFFER;
+}
+
+/*
+ * Flush the HTML output buffer.
+ * If it is inactive, activate it.
+ */
+static void
+print_endword(struct html *h)
+{
+	if (h->noindent) {
+		print_byte(h, ' ');
+		return;
+	}
+
+	if ((h->flags & HTML_BUFFER) == 0) {
+		h->col++;
+		h->flags |= HTML_BUFFER;
+	} else if (h->bufcol) {
+		putchar(' ');
+		fwrite(h->buf, h->bufcol, 1, stdout);
+		h->col += h->bufcol + 1;
+	}
+	h->bufcol = 0;
+}
+
+/*
+ * If at the beginning of a new output line,
+ * perform indentation and mark the line as containing output.
+ * Make sure to really produce some output right afterwards,
+ * but do not use print_otag() for producing it.
+ */
+static void
+print_indent(struct html *h)
+{
+	size_t	 i;
+
+	if (h->col)
+		return;
+
+	if (h->noindent == 0) {
+		h->col = h->indent * 2;
+		for (i = 0; i < h->col; i++)
+			putchar(' ');
+	}
+	h->flags &= ~HTML_NOSPACE;
+}
+
+/*
+ * Print or buffer some characters
+ * depending on the current HTML output buffer state.
+ */
+static void
+print_word(struct html *h, const char *cp)
+{
+	while (*cp != '\0')
+		print_byte(h, *cp++);
+}
+
+/*
+ * Calculate the scaling unit passed in a `-width' argument.  This uses
+ * either a native scaling unit (e.g., 1i, 2m) or the string length of
+ * the value.
+ */
+static void
+a2width(const char *p, struct roffsu *su)
+{
+	const char	*end;
+
+	end = a2roffsu(p, su, SCALE_MAX);
+	if (end == NULL || *end != '\0') {
+		su->unit = SCALE_EN;
+		su->scale = html_strlen(p);
+	} else if (su->scale < 0.0)
+		su->scale = 0.0;
+}

Added: vendor/mandoc/dist/html.h
===================================================================
--- vendor/mandoc/dist/html.h	                        (rev 0)
+++ vendor/mandoc/dist/html.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,135 @@
+/*	$Id: html.h,v 1.87 2017/07/08 14:51:04 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+enum	htmltag {
+	TAG_HTML,
+	TAG_HEAD,
+	TAG_BODY,
+	TAG_META,
+	TAG_TITLE,
+	TAG_DIV,
+	TAG_H1,
+	TAG_H2,
+	TAG_SPAN,
+	TAG_LINK,
+	TAG_BR,
+	TAG_A,
+	TAG_TABLE,
+	TAG_COLGROUP,
+	TAG_COL,
+	TAG_TR,
+	TAG_TD,
+	TAG_LI,
+	TAG_UL,
+	TAG_OL,
+	TAG_DL,
+	TAG_DT,
+	TAG_DD,
+	TAG_PRE,
+	TAG_VAR,
+	TAG_CITE,
+	TAG_B,
+	TAG_I,
+	TAG_CODE,
+	TAG_SMALL,
+	TAG_STYLE,
+	TAG_MATH,
+	TAG_MROW,
+	TAG_MI,
+	TAG_MN,
+	TAG_MO,
+	TAG_MSUP,
+	TAG_MSUB,
+	TAG_MSUBSUP,
+	TAG_MFRAC,
+	TAG_MSQRT,
+	TAG_MFENCED,
+	TAG_MTABLE,
+	TAG_MTR,
+	TAG_MTD,
+	TAG_MUNDEROVER,
+	TAG_MUNDER,
+	TAG_MOVER,
+	TAG_MAX
+};
+
+enum	htmlfont {
+	HTMLFONT_NONE = 0,
+	HTMLFONT_BOLD,
+	HTMLFONT_ITALIC,
+	HTMLFONT_BI,
+	HTMLFONT_MAX
+};
+
+struct	tag {
+	struct tag	 *next;
+	enum htmltag	  tag;
+};
+
+struct	html {
+	int		  flags;
+#define	HTML_NOSPACE	 (1 << 0) /* suppress next space */
+#define	HTML_IGNDELIM	 (1 << 1)
+#define	HTML_KEEP	 (1 << 2)
+#define	HTML_PREKEEP	 (1 << 3)
+#define	HTML_NONOSPACE	 (1 << 4) /* never add spaces */
+#define	HTML_LITERAL	 (1 << 5) /* literal (e.g., <PRE>) context */
+#define	HTML_SKIPCHAR	 (1 << 6) /* skip the next character */
+#define	HTML_NOSPLIT	 (1 << 7) /* do not break line before .An */
+#define	HTML_SPLIT	 (1 << 8) /* break line before .An */
+#define	HTML_NONEWLINE	 (1 << 9) /* No line break in nofill mode. */
+#define	HTML_BUFFER	 (1 << 10) /* Collect a word to see if it fits. */
+	size_t		  indent; /* current output indentation level */
+	int		  noindent; /* indent disabled by <pre> */
+	size_t		  col; /* current output byte position */
+	size_t		  bufcol; /* current buf byte position */
+	char		  buf[80]; /* output buffer */
+	struct tag	 *tag; /* last open tag */
+	struct rofftbl	  tbl; /* current table */
+	struct tag	 *tblt; /* current open table scope */
+	char		 *base_man; /* base for manpage href */
+	char		 *base_includes; /* base for include href */
+	char		 *style; /* style-sheet URI */
+	struct tag	 *metaf; /* current open font scope */
+	enum htmlfont	  metal; /* last used font */
+	enum htmlfont	  metac; /* current font mode */
+	int		  oflags; /* output options */
+#define	HTML_FRAGMENT	 (1 << 0) /* don't emit HTML/HEAD/BODY */
+};
+
+
+struct	roff_node;
+struct	tbl_span;
+struct	eqn_box;
+
+void		  roff_html_pre(struct html *, const struct roff_node *);
+
+void		  print_gen_decls(struct html *);
+void		  print_gen_head(struct html *);
+struct tag	 *print_otag(struct html *, enum htmltag, const char *, ...);
+void		  print_tagq(struct html *, const struct tag *);
+void		  print_stagq(struct html *, const struct tag *);
+void		  print_text(struct html *, const char *);
+void		  print_tblclose(struct html *);
+void		  print_tbl(struct html *, const struct tbl_span *);
+void		  print_eqn(struct html *, const struct eqn_box *);
+void		  print_paragraph(struct html *);
+void		  print_endline(struct html *);
+
+char		 *html_make_id(const struct roff_node *);
+int		  html_strlen(const char *);

Added: vendor/mandoc/dist/lib.c
===================================================================
--- vendor/mandoc/dist/lib.c	                        (rev 0)
+++ vendor/mandoc/dist/lib.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,38 @@
+/*	$Id: lib.c,v 1.14 2017/06/24 14:38:32 schwarze Exp $ */
+/*
+ * Copyright (c) 2009 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <string.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmdoc.h"
+
+#define LINE(x, y) \
+	if (0 == strcmp(p, x)) return(y);
+
+const char *
+mdoc_a2lib(const char *p)
+{
+
+#include "lib.in"
+
+	return NULL;
+}

Added: vendor/mandoc/dist/lib.in
===================================================================
--- vendor/mandoc/dist/lib.in	                        (rev 0)
+++ vendor/mandoc/dist/lib.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,125 @@
+/*	$Id: lib.in,v 1.19 2016/11/23 20:22:13 schwarze Exp $ */
+/*
+ * Copyright (c) 2009 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2009, 2012 Joerg Sonnenberger <joerg at netbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * These are all possible .Lb strings.  When a new library is added, add
+ * its short-string to the left-hand side and formatted string to the
+ * right-hand side.
+ *
+ * Be sure to escape strings.
+ */
+
+LINE("libalias",	"Packet Aliasing Library (libalias, \\-lalias)")
+LINE("libarchive",	"Streaming Archive Library (libarchive, \\-larchive)")
+LINE("libarm",		"ARM Architecture Library (libarm, \\-larm)")
+LINE("libarm32",	"ARM32 Architecture Library (libarm32, \\-larm32)")
+LINE("libbluetooth",	"Bluetooth Library (libbluetooth, \\-lbluetooth)")
+LINE("libbsdxml",	"eXpat XML parser library (libbsdxml, \\-lbsdxml)")
+LINE("libbsm",		"Basic Security Module User Library (libbsm, \\-lbsm)")
+LINE("libc",		"Standard C Library (libc, \\-lc)")
+LINE("libc_r",		"Reentrant C\\~Library (libc_r, \\-lc_r)")
+LINE("libcalendar",	"Calendar Arithmetic Library (libcalendar, \\-lcalendar)")
+LINE("libcam",		"Common Access Method User Library (libcam, \\-lcam)")
+LINE("libcdk",		"Curses Development Kit Library (libcdk, \\-lcdk)")
+LINE("libcipher",	"FreeSec Crypt Library (libcipher, \\-lcipher)")
+LINE("libcompat",	"Compatibility Library (libcompat, \\-lcompat)")
+LINE("libcrypt",	"Crypt Library (libcrypt, \\-lcrypt)")
+LINE("libcurses",	"Curses Library (libcurses, \\-lcurses)")
+LINE("libdevattr",	"Device attribute and event library (libdevattr, \\-ldevattr)")
+LINE("libdevinfo",	"Device and Resource Information Utility Library (libdevinfo, \\-ldevinfo)")
+LINE("libdevstat",	"Device Statistics Library (libdevstat, \\-ldevstat)")
+LINE("libdisk",		"Interface to Slice and Partition Labels Library (libdisk, \\-ldisk)")
+LINE("libdm",		"Device Mapper Library (libdm, \\-ldm)")
+LINE("libdwarf",	"DWARF Access Library (libdwarf, \\-ldwarf)")
+LINE("libedit",		"Command Line Editor Library (libedit, \\-ledit)")
+LINE("libefi",		"EFI Runtime Services Library (libefi, \\-lefi)")
+LINE("libelf",		"ELF Access Library (libelf, \\-lelf)")
+LINE("libevent",	"Event Notification Library (libevent, \\-levent)")
+LINE("libexecinfo",	"Backtrace Information Library (libexecinfo, \\-lexecinfo)")
+LINE("libfetch",	"File Transfer Library (libfetch, \\-lfetch)")
+LINE("libfsid",		"Filesystem Identification Library (libfsid, \\-lfsid)")
+LINE("libftpio",	"FTP Connection Management Library (libftpio, \\-lftpio)")
+LINE("libform",		"Curses Form Library (libform, \\-lform)")
+LINE("libgeom",		"Userland API Library for Kernel GEOM subsystem (libgeom, \\-lgeom)")
+LINE("libgpib",		"General-Purpose Instrument Bus (GPIB) library (libgpib, \\-lgpib)")
+LINE("libhammer",	"HAMMER Filesystem Userland Library (libhammer, \\-lhammer)")
+LINE("libi386",		"i386 Architecture Library (libi386, \\-li386)")
+LINE("libintl",		"Internationalized Message Handling Library (libintl, \\-lintl)")
+LINE("libipsec",	"IPsec Policy Control Library (libipsec, \\-lipsec)")
+LINE("libipx",		"IPX Address Conversion Support Library (libipx, \\-lipx)")
+LINE("libiscsi",	"iSCSI protocol library (libiscsi, \\-liscsi)")
+LINE("libisns",		"Internet Storage Name Service Library (libisns, \\-lisns)")
+LINE("libjail",		"Jail Library (libjail, \\-ljail)")
+LINE("libkcore",	"Kernel Memory Core Access Library (libkcore, \\-lkcore)")
+LINE("libkiconv",	"Kernel-side iconv Library (libkiconv, \\-lkiconv)")
+LINE("libkse",		"N:M Threading Library (libkse, \\-lkse)")
+LINE("libkvm",		"Kernel Data Access Library (libkvm, \\-lkvm)")
+LINE("libm",		"Math Library (libm, \\-lm)")
+LINE("libm68k",		"m68k Architecture Library (libm68k, \\-lm68k)")
+LINE("libmagic",	"Magic Number Recognition Library (libmagic, \\-lmagic)")
+LINE("libmandoc",	"Mandoc Macro Compiler Library (libmandoc, \\-lmandoc)")
+LINE("libmd",		"Message Digest (MD4, MD5, etc.) Support Library (libmd, \\-lmd)")
+LINE("libmemstat",	"Kernel Memory Allocator Statistics Library (libmemstat, \\-lmemstat)")
+LINE("libmenu",		"Curses Menu Library (libmenu, \\-lmenu)")
+LINE("libmj",		"Minimalist JSON library (libmj, \\-lmj)")
+LINE("libnetgraph",	"Netgraph User Library (libnetgraph, \\-lnetgraph)")
+LINE("libnetpgp",	"Netpgp Signing, Verification, Encryption and Decryption (libnetpgp, \\-lnetpgp)")
+LINE("libnetpgpverify",	"Netpgp Verification (libnetpgpverify, \\-lnetpgpverify)")
+LINE("libnpf",		"NPF Packet Filter Library (libnpf, \\-lnpf)")
+LINE("libossaudio",	"OSS Audio Emulation Library (libossaudio, \\-lossaudio)")
+LINE("libpam",		"Pluggable Authentication Module Library (libpam, \\-lpam)")
+LINE("libpanel",	"Z-order for curses windows (libpanel, \\-lpanel)")
+LINE("libpcap",		"Capture Library (libpcap, \\-lpcap)")
+LINE("libpci",		"PCI Bus Access Library (libpci, \\-lpci)")
+LINE("libpmc",		"Performance Counters Library (libpmc, \\-lpmc)")
+LINE("libppath",	"Property-List Paths Library (libppath, \\-lppath)")
+LINE("libposix",	"POSIX Compatibility Library (libposix, \\-lposix)")
+LINE("libposix1e",	"POSIX.1e Security API Library (libposix1e, \\-lposix1e)")
+LINE("libppath",	"Property-List Paths Library (libppath, \\-lppath)")
+LINE("libproc",		"Process Manipulation Library (libproc, \\-lproc)")
+LINE("libprop",		"Property Container Object Library (libprop, \\-lprop)")
+LINE("libpthread",	"POSIX Threads Library (libpthread, \\-lpthread)")
+LINE("libpthread_dbg",	"POSIX Debug Threads Library (libpthread_dbg, \\-lpthread_dbg)")
+LINE("libpuffs",	"puffs Convenience Library (libpuffs, \\-lpuffs)")
+LINE("libquota",	"Disk Quota Access and Control Library (libquota, \\-lquota)")
+LINE("libradius",	"RADIUS Client Library (libradius, \\-lradius)")
+LINE("librefuse",	"File System in Userspace Convenience Library (librefuse, \\-lrefuse)")
+LINE("libresolv",	"DNS Resolver Library (libresolv, \\-lresolv)")
+LINE("librpcsec_gss",	"RPC GSS-API Authentication Library (librpcsec_gss, \\-lrpcsec_gss)")
+LINE("librpcsvc",	"RPC Service Library (librpcsvc, \\-lrpcsvc)")
+LINE("librt",		"POSIX Real\\-time Library (librt, \\-lrt)")
+LINE("librtld_db",	"Debugging interface to the runtime linker Library (librtld_db, \\-lrtld_db)")
+LINE("librumpclient",	"Clientside Stubs for rump Kernel Remote Protocols (librumpclient, \\-lrumpclient)")
+LINE("libsaslc",	"Simple Authentication and Security Layer client library (libsaslc, \\-lsaslc)")
+LINE("libsdp",		"Bluetooth Service Discovery Protocol User Library (libsdp, \\-lsdp)")
+LINE("libssp",		"Buffer Overflow Protection Library (libssp, \\-lssp)")
+LINE("libstand",	"Standalone Applications Library (libstand, \\-lstand)")
+LINE("libSystem",	"System Library (libSystem, \\-lSystem)")
+LINE("libtacplus",	"TACACS+ Client Library (libtacplus, \\-ltacplus)")
+LINE("libtcplay",	"TrueCrypt-compatible API library (libtcplay, \\-ltcplay)")
+LINE("libtermcap",	"Termcap Access Library (libtermcap, \\-ltermcap)")
+LINE("libterminfo",	"Terminal Information Library (libterminfo, \\-lterminfo)")
+LINE("libthr",		"1:1 Threading Library (libthr, \\-lthr)")
+LINE("libufs",		"UFS File System Access Library (libufs, \\-lufs)")
+LINE("libugidfw",	"File System Firewall Interface Library (libugidfw, \\-lugidfw)")
+LINE("libulog",		"User Login Record Library (libulog, \\-lulog)")
+LINE("libusbhid",	"USB Human Interface Devices Library (libusbhid, \\-lusbhid)")
+LINE("libutil",		"System Utilities Library (libutil, \\-lutil)")
+LINE("libvgl",		"Video Graphics Library (libvgl, \\-lvgl)")
+LINE("libx86_64",	"x86_64 Architecture Library (libx86_64, \\-lx86_64)")
+LINE("libz",		"Compression Library (libz, \\-lz)")

Added: vendor/mandoc/dist/libman.h
===================================================================
--- vendor/mandoc/dist/libman.h	                        (rev 0)
+++ vendor/mandoc/dist/libman.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,40 @@
+/*	$Id: libman.h,v 1.81 2017/04/29 12:45:41 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define	MACRO_PROT_ARGS	  struct roff_man *man, \
+			  enum roff_tok tok, \
+			  int line, \
+			  int ppos, \
+			  int *pos, \
+			  char *buf
+
+struct	man_macro {
+	void		(*fp)(MACRO_PROT_ARGS);
+	int		  flags;
+#define	MAN_SCOPED	 (1 << 0)  /* Optional next-line scope. */
+#define	MAN_NSCOPED	 (1 << 1)  /* Allowed in next-line element scope. */
+#define	MAN_BSCOPE	 (1 << 2)  /* Break next-line block scope. */
+#define	MAN_JOIN	 (1 << 3)  /* Join arguments together. */
+};
+
+extern	const struct man_macro *const man_macros;
+
+
+void		  man_node_validate(struct roff_man *);
+void		  man_state(struct roff_man *, struct roff_node *);
+void		  man_unscope(struct roff_man *, const struct roff_node *);

Added: vendor/mandoc/dist/libmandoc.h
===================================================================
--- vendor/mandoc/dist/libmandoc.h	                        (rev 0)
+++ vendor/mandoc/dist/libmandoc.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,73 @@
+/*	$Id: libmandoc.h,v 1.70 2017/07/08 17:52:49 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+enum	rofferr {
+	ROFF_CONT, /* continue processing line */
+	ROFF_RERUN, /* re-run roff interpreter with offset */
+	ROFF_APPEND, /* re-run main parser, appending next line */
+	ROFF_REPARSE, /* re-run main parser on the result */
+	ROFF_SO, /* include another file */
+	ROFF_IGN, /* ignore current line */
+};
+
+struct	buf {
+	char	*buf;
+	size_t	 sz;
+};
+
+
+struct	mparse;
+struct	roff;
+struct	roff_man;
+
+void		 mandoc_msg(enum mandocerr, struct mparse *,
+			int, int, const char *);
+void		 mandoc_vmsg(enum mandocerr, struct mparse *,
+			int, int, const char *, ...)
+			__attribute__((__format__ (__printf__, 5, 6)));
+char		*mandoc_getarg(struct mparse *, char **, int, int *);
+char		*mandoc_normdate(struct roff_man *, char *, int, int);
+int		 mandoc_eos(const char *, size_t);
+int		 mandoc_strntoi(const char *, size_t, int);
+const char	*mandoc_a2msec(const char*);
+
+int		 mdoc_parseln(struct roff_man *, int, char *, int);
+void		 mdoc_endparse(struct roff_man *);
+
+int		 man_parseln(struct roff_man *, int, char *, int);
+void		 man_endparse(struct roff_man *);
+
+int		 preconv_cue(const struct buf *, size_t);
+int		 preconv_encode(const struct buf *, size_t *,
+			struct buf *, size_t *, int *);
+
+void		 roff_free(struct roff *);
+struct roff	*roff_alloc(struct mparse *, int);
+void		 roff_reset(struct roff *);
+void		 roff_man_free(struct roff_man *);
+struct roff_man	*roff_man_alloc(struct roff *, struct mparse *,
+			const char *, int);
+void		 roff_man_reset(struct roff_man *);
+enum rofferr	 roff_parseln(struct roff *, int, struct buf *, int *);
+void		 roff_endparse(struct roff *);
+void		 roff_setreg(struct roff *, const char *, int, char sign);
+int		 roff_getreg(const struct roff *, const char *);
+char		*roff_strdup(const struct roff *, const char *);
+int		 roff_getcontrol(const struct roff *,
+			const char *, int *);
+int		 roff_getformat(const struct roff *);

Added: vendor/mandoc/dist/libmdoc.h
===================================================================
--- vendor/mandoc/dist/libmdoc.h	                        (rev 0)
+++ vendor/mandoc/dist/libmdoc.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,87 @@
+/*	$Id: libmdoc.h,v 1.112 2017/05/30 16:22:03 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define	MACRO_PROT_ARGS	struct roff_man *mdoc, \
+			enum roff_tok tok, \
+			int line, \
+			int ppos, \
+			int *pos, \
+			char *buf
+
+struct	mdoc_macro {
+	void		(*fp)(MACRO_PROT_ARGS);
+	int		  flags;
+#define	MDOC_CALLABLE	 (1 << 0)
+#define	MDOC_PARSED	 (1 << 1)
+#define	MDOC_EXPLICIT	 (1 << 2)
+#define	MDOC_PROLOGUE	 (1 << 3)
+#define	MDOC_IGNDELIM	 (1 << 4)
+#define	MDOC_JOIN	 (1 << 5)
+};
+
+enum	margserr {
+	ARGS_ERROR,
+	ARGS_EOLN, /* end-of-line */
+	ARGS_WORD, /* normal word */
+	ARGS_PUNCT, /* series of punctuation */
+	ARGS_PHRASE /* Bl -column phrase */
+};
+
+/*
+ * A punctuation delimiter is opening, closing, or "middle mark"
+ * punctuation.  These govern spacing.
+ * Opening punctuation (e.g., the opening parenthesis) suppresses the
+ * following space; closing punctuation (e.g., the closing parenthesis)
+ * suppresses the leading space; middle punctuation (e.g., the vertical
+ * bar) can do either.  The middle punctuation delimiter bends the rules
+ * depending on usage.
+ */
+enum	mdelim {
+	DELIM_NONE = 0,
+	DELIM_OPEN,
+	DELIM_MIDDLE,
+	DELIM_CLOSE,
+	DELIM_MAX
+};
+
+extern	const struct mdoc_macro *const mdoc_macros;
+
+
+void		  mdoc_macro(MACRO_PROT_ARGS);
+void		  mdoc_elem_alloc(struct roff_man *, int, int,
+			enum roff_tok, struct mdoc_arg *);
+struct roff_node *mdoc_block_alloc(struct roff_man *, int, int,
+			enum roff_tok, struct mdoc_arg *);
+void		  mdoc_tail_alloc(struct roff_man *, int, int,
+			enum roff_tok);
+struct roff_node *mdoc_endbody_alloc(struct roff_man *, int, int,
+			enum roff_tok, struct roff_node *);
+void		  mdoc_node_relink(struct roff_man *, struct roff_node *);
+void		  mdoc_node_validate(struct roff_man *);
+void		  mdoc_state(struct roff_man *, struct roff_node *);
+void		  mdoc_state_reset(struct roff_man *);
+const char	 *mdoc_a2arch(const char *);
+const char	 *mdoc_a2att(const char *);
+const char	 *mdoc_a2lib(const char *);
+enum roff_sec	  mdoc_a2sec(const char *);
+const char	 *mdoc_a2st(const char *);
+void		  mdoc_argv(struct roff_man *, int, enum roff_tok,
+			struct mdoc_arg **, int *, char *);
+enum margserr	  mdoc_args(struct roff_man *, int,
+			int *, char *, enum roff_tok, char **);
+enum mdelim	  mdoc_isdelim(const char *);

Added: vendor/mandoc/dist/libroff.h
===================================================================
--- vendor/mandoc/dist/libroff.h	                        (rev 0)
+++ vendor/mandoc/dist/libroff.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,80 @@
+/*	$Id: libroff.h,v 1.42 2017/07/08 17:52:49 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+enum	tbl_part {
+	TBL_PART_OPTS, /* in options (first line) */
+	TBL_PART_LAYOUT, /* describing layout */
+	TBL_PART_DATA, /* creating data rows */
+	TBL_PART_CDATA /* continue previous row */
+};
+
+struct	tbl_node {
+	struct mparse	 *parse; /* parse point */
+	int		  pos; /* invocation column */
+	int		  line; /* invocation line */
+	enum tbl_part	  part;
+	struct tbl_opts	  opts;
+	struct tbl_row	 *first_row;
+	struct tbl_row	 *last_row;
+	struct tbl_span	 *first_span;
+	struct tbl_span	 *current_span;
+	struct tbl_span	 *last_span;
+	struct tbl_node	 *next;
+};
+
+struct	eqn_node {
+	struct mparse	 *parse;  /* main parser, for error reporting */
+	struct roff_node *node;   /* syntax tree of this equation */
+	struct eqn_def	 *defs;   /* array of definitions */
+	char		 *data;   /* source code of this equation */
+	char		 *start;  /* first byte of the current token */
+	char		 *end;	  /* first byte of the next token */
+	size_t		  defsz;  /* number of definitions */
+	size_t		  sz;     /* length of the source code */
+	size_t		  toksz;  /* length of the current token */
+	int		  gsize;  /* default point size */
+	int		  delim;  /* in-line delimiters enabled */
+	char		  odelim; /* in-line opening delimiter */
+	char		  cdelim; /* in-line closing delimiter */
+};
+
+struct	eqn_def {
+	char		 *key;
+	size_t		  keysz;
+	char		 *val;
+	size_t		  valsz;
+};
+
+
+struct tbl_node	*tbl_alloc(int, int, struct mparse *);
+void		 tbl_restart(int, int, struct tbl_node *);
+void		 tbl_free(struct tbl_node *);
+void		 tbl_reset(struct tbl_node *);
+void		 tbl_read(struct tbl_node *, int, const char *, int);
+void		 tbl_option(struct tbl_node *, int, const char *, int *);
+void		 tbl_layout(struct tbl_node *, int, const char *, int);
+void		 tbl_data(struct tbl_node *, int, const char *, int);
+void		 tbl_cdata(struct tbl_node *, int, const char *, int);
+const struct tbl_span	*tbl_span(struct tbl_node *);
+int		 tbl_end(struct tbl_node *);
+struct eqn_node	*eqn_alloc(struct mparse *);
+void		 eqn_box_free(struct eqn_box *);
+void		 eqn_free(struct eqn_node *);
+void		 eqn_parse(struct eqn_node *);
+void		 eqn_read(struct eqn_node *, const char *);
+void		 eqn_reset(struct eqn_node *);

Added: vendor/mandoc/dist/main.c
===================================================================
--- vendor/mandoc/dist/main.c	                        (rev 0)
+++ vendor/mandoc/dist/main.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1185 @@
+/*	$Id: main.c,v 1.301 2017/07/26 10:21:55 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010-2012, 2014-2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2010 Joerg Sonnenberger <joerg at netbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/param.h>	/* MACHINE */
+#include <sys/wait.h>
+
+#include <assert.h>
+#include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <glob.h>
+#if HAVE_SANDBOX_INIT
+#include <sandbox.h>
+#endif
+#include <signal.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "mandoc_xr.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "tag.h"
+#include "main.h"
+#include "manconf.h"
+#include "mansearch.h"
+
+enum	outmode {
+	OUTMODE_DEF = 0,
+	OUTMODE_FLN,
+	OUTMODE_LST,
+	OUTMODE_ALL,
+	OUTMODE_ONE
+};
+
+enum	outt {
+	OUTT_ASCII = 0,	/* -Tascii */
+	OUTT_LOCALE,	/* -Tlocale */
+	OUTT_UTF8,	/* -Tutf8 */
+	OUTT_TREE,	/* -Ttree */
+	OUTT_MAN,	/* -Tman */
+	OUTT_HTML,	/* -Thtml */
+	OUTT_MARKDOWN,	/* -Tmarkdown */
+	OUTT_LINT,	/* -Tlint */
+	OUTT_PS,	/* -Tps */
+	OUTT_PDF	/* -Tpdf */
+};
+
+struct	curparse {
+	struct mparse	 *mp;
+	struct manoutput *outopts;	/* output options */
+	void		 *outdata;	/* data for output */
+	char		 *os_s;		/* operating system for display */
+	int		  wstop;	/* stop after a file with a warning */
+	enum mandocerr	  mmin;		/* ignore messages below this */
+	enum mandoc_os	  os_e;		/* check base system conventions */
+	enum outt	  outtype;	/* which output to use */
+};
+
+
+int			  mandocdb(int, char *[]);
+
+static	void		  check_xr(const char *);
+static	int		  fs_lookup(const struct manpaths *,
+				size_t ipath, const char *,
+				const char *, const char *,
+				struct manpage **, size_t *);
+static	int		  fs_search(const struct mansearch *,
+				const struct manpaths *, int, char**,
+				struct manpage **, size_t *);
+static	int		  koptions(int *, char *);
+static	void		  moptions(int *, char *);
+static	void		  mmsg(enum mandocerr, enum mandoclevel,
+				const char *, int, int, const char *);
+static	void		  outdata_alloc(struct curparse *);
+static	void		  parse(struct curparse *, int, const char *);
+static	void		  passthrough(const char *, int, int);
+static	pid_t		  spawn_pager(struct tag_files *);
+static	int		  toptions(struct curparse *, char *);
+static	void		  usage(enum argmode) __attribute__((__noreturn__));
+static	int		  woptions(struct curparse *, char *);
+
+static	const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
+static	char		  help_arg[] = "help";
+static	char		 *help_argv[] = {help_arg, NULL};
+static	enum mandoclevel  rc;
+static	FILE		 *mmsg_stream;
+
+
+int
+main(int argc, char *argv[])
+{
+	struct manconf	 conf;
+	struct mansearch search;
+	struct curparse	 curp;
+	struct tag_files *tag_files;
+	struct manpage	*res, *resp;
+	const char	*progname, *sec, *thisarg;
+	char		*conf_file, *defpaths, *auxpaths;
+	char		*oarg;
+	unsigned char	*uc;
+	size_t		 i, sz;
+	int		 prio, best_prio;
+	enum outmode	 outmode;
+	int		 fd;
+	int		 show_usage;
+	int		 options;
+	int		 use_pager;
+	int		 status, signum;
+	int		 c;
+	pid_t		 pager_pid, tc_pgid, man_pgid, pid;
+
+#if HAVE_PROGNAME
+	progname = getprogname();
+#else
+	if (argc < 1)
+		progname = mandoc_strdup("mandoc");
+	else if ((progname = strrchr(argv[0], '/')) == NULL)
+		progname = argv[0];
+	else
+		++progname;
+	setprogname(progname);
+#endif
+
+	if (strncmp(progname, "mandocdb", 8) == 0 ||
+	    strcmp(progname, BINM_MAKEWHATIS) == 0)
+		return mandocdb(argc, argv);
+
+#if HAVE_PLEDGE
+	if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
+		err((int)MANDOCLEVEL_SYSERR, "pledge");
+#endif
+
+#if HAVE_SANDBOX_INIT
+	if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
+		errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
+#endif
+
+	/* Search options. */
+
+	memset(&conf, 0, sizeof(conf));
+	conf_file = defpaths = NULL;
+	auxpaths = NULL;
+
+	memset(&search, 0, sizeof(struct mansearch));
+	search.outkey = "Nd";
+	oarg = NULL;
+
+	if (strcmp(progname, BINM_MAN) == 0)
+		search.argmode = ARG_NAME;
+	else if (strcmp(progname, BINM_APROPOS) == 0)
+		search.argmode = ARG_EXPR;
+	else if (strcmp(progname, BINM_WHATIS) == 0)
+		search.argmode = ARG_WORD;
+	else if (strncmp(progname, "help", 4) == 0)
+		search.argmode = ARG_NAME;
+	else
+		search.argmode = ARG_FILE;
+
+	/* Parser and formatter options. */
+
+	memset(&curp, 0, sizeof(struct curparse));
+	curp.outtype = OUTT_LOCALE;
+	curp.mmin = MANDOCERR_MAX;
+	curp.outopts = &conf.output;
+	options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
+	mmsg_stream = stderr;
+
+	use_pager = 1;
+	tag_files = NULL;
+	show_usage = 0;
+	outmode = OUTMODE_DEF;
+
+	while ((c = getopt(argc, argv,
+	    "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
+		if (c == 'i' && search.argmode == ARG_EXPR) {
+			optind--;
+			break;
+		}
+		switch (c) {
+		case 'a':
+			outmode = OUTMODE_ALL;
+			break;
+		case 'C':
+			conf_file = optarg;
+			break;
+		case 'c':
+			use_pager = 0;
+			break;
+		case 'f':
+			search.argmode = ARG_WORD;
+			break;
+		case 'h':
+			conf.output.synopsisonly = 1;
+			use_pager = 0;
+			outmode = OUTMODE_ALL;
+			break;
+		case 'I':
+			if (strncmp(optarg, "os=", 3)) {
+				warnx("-I %s: Bad argument", optarg);
+				return (int)MANDOCLEVEL_BADARG;
+			}
+			if (curp.os_s != NULL) {
+				warnx("-I %s: Duplicate argument", optarg);
+				return (int)MANDOCLEVEL_BADARG;
+			}
+			curp.os_s = mandoc_strdup(optarg + 3);
+			break;
+		case 'K':
+			if ( ! koptions(&options, optarg))
+				return (int)MANDOCLEVEL_BADARG;
+			break;
+		case 'k':
+			search.argmode = ARG_EXPR;
+			break;
+		case 'l':
+			search.argmode = ARG_FILE;
+			outmode = OUTMODE_ALL;
+			break;
+		case 'M':
+			defpaths = optarg;
+			break;
+		case 'm':
+			auxpaths = optarg;
+			break;
+		case 'O':
+			oarg = optarg;
+			break;
+		case 'S':
+			search.arch = optarg;
+			break;
+		case 's':
+			search.sec = optarg;
+			break;
+		case 'T':
+			if ( ! toptions(&curp, optarg))
+				return (int)MANDOCLEVEL_BADARG;
+			break;
+		case 'W':
+			if ( ! woptions(&curp, optarg))
+				return (int)MANDOCLEVEL_BADARG;
+			break;
+		case 'w':
+			outmode = OUTMODE_FLN;
+			break;
+		default:
+			show_usage = 1;
+			break;
+		}
+	}
+
+	if (show_usage)
+		usage(search.argmode);
+
+	/* Postprocess options. */
+
+	if (outmode == OUTMODE_DEF) {
+		switch (search.argmode) {
+		case ARG_FILE:
+			outmode = OUTMODE_ALL;
+			use_pager = 0;
+			break;
+		case ARG_NAME:
+			outmode = OUTMODE_ONE;
+			break;
+		default:
+			outmode = OUTMODE_LST;
+			break;
+		}
+	}
+
+	if (oarg != NULL) {
+		if (outmode == OUTMODE_LST)
+			search.outkey = oarg;
+		else {
+			while (oarg != NULL) {
+				thisarg = oarg;
+				if (manconf_output(&conf.output,
+				    strsep(&oarg, ","), 0) == 0)
+					continue;
+				warnx("-O %s: Bad argument", thisarg);
+				return (int)MANDOCLEVEL_BADARG;
+			}
+		}
+	}
+
+	if (outmode == OUTMODE_FLN ||
+	    outmode == OUTMODE_LST ||
+	    !isatty(STDOUT_FILENO))
+		use_pager = 0;
+
+#if HAVE_PLEDGE
+	if (!use_pager)
+		if (pledge("stdio rpath", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+#endif
+
+	/* Parse arguments. */
+
+	if (argc > 0) {
+		argc -= optind;
+		argv += optind;
+	}
+	resp = NULL;
+
+	/*
+	 * Quirks for help(1)
+	 * and for a man(1) section argument without -s.
+	 */
+
+	if (search.argmode == ARG_NAME) {
+		if (*progname == 'h') {
+			if (argc == 0) {
+				argv = help_argv;
+				argc = 1;
+			}
+		} else if (argc > 1 &&
+		    ((uc = (unsigned char *)argv[0]) != NULL) &&
+		    ((isdigit(uc[0]) && (uc[1] == '\0' ||
+		      (isalpha(uc[1]) && uc[2] == '\0'))) ||
+		     (uc[0] == 'n' && uc[1] == '\0'))) {
+			search.sec = (char *)uc;
+			argv++;
+			argc--;
+		}
+		if (search.arch == NULL)
+			search.arch = getenv("MACHINE");
+#ifdef MACHINE
+		if (search.arch == NULL)
+			search.arch = MACHINE;
+#endif
+	}
+
+	rc = MANDOCLEVEL_OK;
+
+	/* man(1), whatis(1), apropos(1) */
+
+	if (search.argmode != ARG_FILE) {
+		if (search.argmode == ARG_NAME &&
+		    outmode == OUTMODE_ONE)
+			search.firstmatch = 1;
+
+		/* Access the mandoc database. */
+
+		manconf_parse(&conf, conf_file, defpaths, auxpaths);
+		if ( ! mansearch(&search, &conf.manpath,
+		    argc, argv, &res, &sz))
+			usage(search.argmode);
+
+		if (sz == 0) {
+			if (search.argmode == ARG_NAME)
+				fs_search(&search, &conf.manpath,
+				    argc, argv, &res, &sz);
+			else
+				warnx("nothing appropriate");
+		}
+
+		if (sz == 0) {
+			rc = MANDOCLEVEL_BADARG;
+			goto out;
+		}
+
+		/*
+		 * For standard man(1) and -a output mode,
+		 * prepare for copying filename pointers
+		 * into the program parameter array.
+		 */
+
+		if (outmode == OUTMODE_ONE) {
+			argc = 1;
+			best_prio = 20;
+		} else if (outmode == OUTMODE_ALL)
+			argc = (int)sz;
+
+		/* Iterate all matching manuals. */
+
+		resp = res;
+		for (i = 0; i < sz; i++) {
+			if (outmode == OUTMODE_FLN)
+				puts(res[i].file);
+			else if (outmode == OUTMODE_LST)
+				printf("%s - %s\n", res[i].names,
+				    res[i].output == NULL ? "" :
+				    res[i].output);
+			else if (outmode == OUTMODE_ONE) {
+				/* Search for the best section. */
+				sec = res[i].file;
+				sec += strcspn(sec, "123456789");
+				if (sec[0] == '\0')
+					continue;
+				prio = sec_prios[sec[0] - '1'];
+				if (sec[1] != '/')
+					prio += 10;
+				if (prio >= best_prio)
+					continue;
+				best_prio = prio;
+				resp = res + i;
+			}
+		}
+
+		/*
+		 * For man(1), -a and -i output mode, fall through
+		 * to the main mandoc(1) code iterating files
+		 * and running the parsers on each of them.
+		 */
+
+		if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
+			goto out;
+	}
+
+	/* mandoc(1) */
+
+#if HAVE_PLEDGE
+	if (use_pager) {
+		if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+	} else {
+		if (pledge("stdio rpath", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+	}
+#endif
+
+	if (search.argmode == ARG_FILE)
+		moptions(&options, auxpaths);
+
+	mchars_alloc();
+	curp.mp = mparse_alloc(options, curp.mmin, mmsg,
+	    curp.os_e, curp.os_s);
+
+	/*
+	 * Conditionally start up the lookaside buffer before parsing.
+	 */
+	if (OUTT_MAN == curp.outtype)
+		mparse_keep(curp.mp);
+
+	if (argc < 1) {
+		if (use_pager)
+			tag_files = tag_init();
+		parse(&curp, STDIN_FILENO, "<stdin>");
+	}
+
+	while (argc > 0) {
+		fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv);
+		if (fd != -1) {
+			if (use_pager) {
+				tag_files = tag_init();
+				use_pager = 0;
+			}
+
+			if (resp == NULL)
+				parse(&curp, fd, *argv);
+			else if (resp->form == FORM_SRC) {
+				/* For .so only; ignore failure. */
+				(void)chdir(conf.manpath.paths[resp->ipath]);
+				parse(&curp, fd, resp->file);
+			} else
+				passthrough(resp->file, fd,
+				    conf.output.synopsisonly);
+
+			if (argc > 1 && curp.outtype <= OUTT_UTF8) {
+				if (curp.outdata == NULL)
+					outdata_alloc(&curp);
+				terminal_sepline(curp.outdata);
+			}
+		} else if (rc < MANDOCLEVEL_ERROR)
+			rc = MANDOCLEVEL_ERROR;
+
+		if (MANDOCLEVEL_OK != rc && curp.wstop)
+			break;
+
+		if (resp != NULL)
+			resp++;
+		else
+			argv++;
+		if (--argc)
+			mparse_reset(curp.mp);
+	}
+
+	if (curp.outdata != NULL) {
+		switch (curp.outtype) {
+		case OUTT_HTML:
+			html_free(curp.outdata);
+			break;
+		case OUTT_UTF8:
+		case OUTT_LOCALE:
+		case OUTT_ASCII:
+			ascii_free(curp.outdata);
+			break;
+		case OUTT_PDF:
+		case OUTT_PS:
+			pspdf_free(curp.outdata);
+			break;
+		default:
+			break;
+		}
+	}
+	mandoc_xr_free();
+	mparse_free(curp.mp);
+	mchars_free();
+
+out:
+	if (search.argmode != ARG_FILE) {
+		manconf_free(&conf);
+		mansearch_free(res, sz);
+	}
+
+	free(curp.os_s);
+
+	/*
+	 * When using a pager, finish writing both temporary files,
+	 * fork it, wait for the user to close it, and clean up.
+	 */
+
+	if (tag_files != NULL) {
+		fclose(stdout);
+		tag_write();
+		man_pgid = getpgid(0);
+		tag_files->tcpgid = man_pgid == getpid() ?
+		    getpgid(getppid()) : man_pgid;
+		pager_pid = 0;
+		signum = SIGSTOP;
+		for (;;) {
+
+			/* Stop here until moved to the foreground. */
+
+			tc_pgid = tcgetpgrp(tag_files->ofd);
+			if (tc_pgid != man_pgid) {
+				if (tc_pgid == pager_pid) {
+					(void)tcsetpgrp(tag_files->ofd,
+					    man_pgid);
+					if (signum == SIGTTIN)
+						continue;
+				} else
+					tag_files->tcpgid = tc_pgid;
+				kill(0, signum);
+				continue;
+			}
+
+			/* Once in the foreground, activate the pager. */
+
+			if (pager_pid) {
+				(void)tcsetpgrp(tag_files->ofd, pager_pid);
+				kill(pager_pid, SIGCONT);
+			} else
+				pager_pid = spawn_pager(tag_files);
+
+			/* Wait for the pager to stop or exit. */
+
+			while ((pid = waitpid(pager_pid, &status,
+			    WUNTRACED)) == -1 && errno == EINTR)
+				continue;
+
+			if (pid == -1) {
+				warn("wait");
+				rc = MANDOCLEVEL_SYSERR;
+				break;
+			}
+			if (!WIFSTOPPED(status))
+				break;
+
+			signum = WSTOPSIG(status);
+		}
+		tag_unlink();
+	}
+
+	return (int)rc;
+}
+
+static void
+usage(enum argmode argmode)
+{
+
+	switch (argmode) {
+	case ARG_FILE:
+		fputs("usage: mandoc [-ac] [-I os=name] "
+		    "[-K encoding] [-mdoc | -man] [-O options]\n"
+		    "\t      [-T output] [-W level] [file ...]\n", stderr);
+		break;
+	case ARG_NAME:
+		fputs("usage: man [-acfhklw] [-C file] [-M path] "
+		    "[-m path] [-S subsection]\n"
+		    "\t   [[-s] section] name ...\n", stderr);
+		break;
+	case ARG_WORD:
+		fputs("usage: whatis [-afk] [-C file] "
+		    "[-M path] [-m path] [-O outkey] [-S arch]\n"
+		    "\t      [-s section] name ...\n", stderr);
+		break;
+	case ARG_EXPR:
+		fputs("usage: apropos [-afk] [-C file] "
+		    "[-M path] [-m path] [-O outkey] [-S arch]\n"
+		    "\t       [-s section] expression ...\n", stderr);
+		break;
+	}
+	exit((int)MANDOCLEVEL_BADARG);
+}
+
+static int
+fs_lookup(const struct manpaths *paths, size_t ipath,
+	const char *sec, const char *arch, const char *name,
+	struct manpage **res, size_t *ressz)
+{
+	glob_t		 globinfo;
+	struct manpage	*page;
+	char		*file;
+	int		 globres;
+	enum form	 form;
+
+	form = FORM_SRC;
+	mandoc_asprintf(&file, "%s/man%s/%s.%s",
+	    paths->paths[ipath], sec, name, sec);
+	if (access(file, R_OK) != -1)
+		goto found;
+	free(file);
+
+	mandoc_asprintf(&file, "%s/cat%s/%s.0",
+	    paths->paths[ipath], sec, name);
+	if (access(file, R_OK) != -1) {
+		form = FORM_CAT;
+		goto found;
+	}
+	free(file);
+
+	if (arch != NULL) {
+		mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
+		    paths->paths[ipath], sec, arch, name, sec);
+		if (access(file, R_OK) != -1)
+			goto found;
+		free(file);
+	}
+
+	mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
+	    paths->paths[ipath], sec, name);
+	globres = glob(file, 0, NULL, &globinfo);
+	if (globres != 0 && globres != GLOB_NOMATCH)
+		warn("%s: glob", file);
+	free(file);
+	if (globres == 0)
+		file = mandoc_strdup(*globinfo.gl_pathv);
+	globfree(&globinfo);
+	if (globres == 0)
+		goto found;
+	if (res != NULL || ipath + 1 != paths->sz)
+		return 0;
+
+	mandoc_asprintf(&file, "%s.%s", name, sec);
+	globres = access(file, R_OK);
+	free(file);
+	return globres != -1;
+
+found:
+	warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
+	    name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
+	if (res == NULL) {
+		free(file);
+		return 1;
+	}
+	*res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
+	page = *res + (*ressz - 1);
+	page->file = file;
+	page->names = NULL;
+	page->output = NULL;
+	page->ipath = ipath;
+	page->bits = NAME_FILE & NAME_MASK;
+	page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
+	page->form = form;
+	return 1;
+}
+
+static int
+fs_search(const struct mansearch *cfg, const struct manpaths *paths,
+	int argc, char **argv, struct manpage **res, size_t *ressz)
+{
+	const char *const sections[] =
+	    {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
+	const size_t nsec = sizeof(sections)/sizeof(sections[0]);
+
+	size_t		 ipath, isec, lastsz;
+
+	assert(cfg->argmode == ARG_NAME);
+
+	if (res != NULL)
+		*res = NULL;
+	*ressz = lastsz = 0;
+	while (argc) {
+		for (ipath = 0; ipath < paths->sz; ipath++) {
+			if (cfg->sec != NULL) {
+				if (fs_lookup(paths, ipath, cfg->sec,
+				    cfg->arch, *argv, res, ressz) &&
+				    cfg->firstmatch)
+					return 1;
+			} else for (isec = 0; isec < nsec; isec++)
+				if (fs_lookup(paths, ipath, sections[isec],
+				    cfg->arch, *argv, res, ressz) &&
+				    cfg->firstmatch)
+					return 1;
+		}
+		if (res != NULL && *ressz == lastsz)
+			warnx("No entry for %s in the manual.", *argv);
+		lastsz = *ressz;
+		argv++;
+		argc--;
+	}
+	return 0;
+}
+
+static void
+parse(struct curparse *curp, int fd, const char *file)
+{
+	enum mandoclevel  rctmp;
+	struct roff_man	 *man;
+
+	/* Begin by parsing the file itself. */
+
+	assert(file);
+	assert(fd >= 0);
+
+	rctmp = mparse_readfd(curp->mp, fd, file);
+	if (fd != STDIN_FILENO)
+		close(fd);
+	if (rc < rctmp)
+		rc = rctmp;
+
+	/*
+	 * With -Wstop and warnings or errors of at least the requested
+	 * level, do not produce output.
+	 */
+
+	if (rctmp != MANDOCLEVEL_OK && curp->wstop)
+		return;
+
+	if (curp->outdata == NULL)
+		outdata_alloc(curp);
+
+	mparse_result(curp->mp, &man, NULL);
+
+	/* Execute the out device, if it exists. */
+
+	if (man == NULL)
+		return;
+	mandoc_xr_reset();
+	if (man->macroset == MACROSET_MDOC) {
+		if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
+			mdoc_validate(man);
+		switch (curp->outtype) {
+		case OUTT_HTML:
+			html_mdoc(curp->outdata, man);
+			break;
+		case OUTT_TREE:
+			tree_mdoc(curp->outdata, man);
+			break;
+		case OUTT_MAN:
+			man_mdoc(curp->outdata, man);
+			break;
+		case OUTT_PDF:
+		case OUTT_ASCII:
+		case OUTT_UTF8:
+		case OUTT_LOCALE:
+		case OUTT_PS:
+			terminal_mdoc(curp->outdata, man);
+			break;
+		case OUTT_MARKDOWN:
+			markdown_mdoc(curp->outdata, man);
+			break;
+		default:
+			break;
+		}
+	}
+	if (man->macroset == MACROSET_MAN) {
+		if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
+			man_validate(man);
+		switch (curp->outtype) {
+		case OUTT_HTML:
+			html_man(curp->outdata, man);
+			break;
+		case OUTT_TREE:
+			tree_man(curp->outdata, man);
+			break;
+		case OUTT_MAN:
+			man_man(curp->outdata, man);
+			break;
+		case OUTT_PDF:
+		case OUTT_ASCII:
+		case OUTT_UTF8:
+		case OUTT_LOCALE:
+		case OUTT_PS:
+			terminal_man(curp->outdata, man);
+			break;
+		default:
+			break;
+		}
+	}
+	if (curp->mmin < MANDOCERR_STYLE)
+		check_xr(file);
+	mparse_updaterc(curp->mp, &rc);
+}
+
+static void
+check_xr(const char *file)
+{
+	static struct manpaths	 paths;
+	struct mansearch	 search;
+	struct mandoc_xr	*xr;
+	char			*cp;
+	size_t			 sz;
+
+	if (paths.sz == 0)
+		manpath_base(&paths);
+
+	for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
+		if (xr->line == -1)
+			continue;
+		search.arch = NULL;
+		search.sec = xr->sec;
+		search.outkey = NULL;
+		search.argmode = ARG_NAME;
+		search.firstmatch = 1;
+		if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
+			continue;
+		if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
+			continue;
+		if (xr->count == 1)
+			mandoc_asprintf(&cp, "Xr %s %s", xr->name, xr->sec);
+		else
+			mandoc_asprintf(&cp, "Xr %s %s (%d times)",
+			    xr->name, xr->sec, xr->count);
+		mmsg(MANDOCERR_XR_BAD, MANDOCLEVEL_STYLE,
+		    file, xr->line, xr->pos + 1, cp);
+		free(cp);
+	}
+}
+
+static void
+outdata_alloc(struct curparse *curp)
+{
+	switch (curp->outtype) {
+	case OUTT_HTML:
+		curp->outdata = html_alloc(curp->outopts);
+		break;
+	case OUTT_UTF8:
+		curp->outdata = utf8_alloc(curp->outopts);
+		break;
+	case OUTT_LOCALE:
+		curp->outdata = locale_alloc(curp->outopts);
+		break;
+	case OUTT_ASCII:
+		curp->outdata = ascii_alloc(curp->outopts);
+		break;
+	case OUTT_PDF:
+		curp->outdata = pdf_alloc(curp->outopts);
+		break;
+	case OUTT_PS:
+		curp->outdata = ps_alloc(curp->outopts);
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+passthrough(const char *file, int fd, int synopsis_only)
+{
+	const char	 synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
+	const char	 synr[] = "SYNOPSIS";
+
+	FILE		*stream;
+	const char	*syscall;
+	char		*line, *cp;
+	size_t		 linesz;
+	ssize_t		 len, written;
+	int		 print;
+
+	line = NULL;
+	linesz = 0;
+
+	if (fflush(stdout) == EOF) {
+		syscall = "fflush";
+		goto fail;
+	}
+
+	if ((stream = fdopen(fd, "r")) == NULL) {
+		close(fd);
+		syscall = "fdopen";
+		goto fail;
+	}
+
+	print = 0;
+	while ((len = getline(&line, &linesz, stream)) != -1) {
+		cp = line;
+		if (synopsis_only) {
+			if (print) {
+				if ( ! isspace((unsigned char)*cp))
+					goto done;
+				while (isspace((unsigned char)*cp)) {
+					cp++;
+					len--;
+				}
+			} else {
+				if (strcmp(cp, synb) == 0 ||
+				    strcmp(cp, synr) == 0)
+					print = 1;
+				continue;
+			}
+		}
+		for (; len > 0; len -= written) {
+			if ((written = write(STDOUT_FILENO, cp, len)) != -1)
+				continue;
+			fclose(stream);
+			syscall = "write";
+			goto fail;
+		}
+	}
+
+	if (ferror(stream)) {
+		fclose(stream);
+		syscall = "getline";
+		goto fail;
+	}
+
+done:
+	free(line);
+	fclose(stream);
+	return;
+
+fail:
+	free(line);
+	warn("%s: SYSERR: %s", file, syscall);
+	if (rc < MANDOCLEVEL_SYSERR)
+		rc = MANDOCLEVEL_SYSERR;
+}
+
+static int
+koptions(int *options, char *arg)
+{
+
+	if ( ! strcmp(arg, "utf-8")) {
+		*options |=  MPARSE_UTF8;
+		*options &= ~MPARSE_LATIN1;
+	} else if ( ! strcmp(arg, "iso-8859-1")) {
+		*options |=  MPARSE_LATIN1;
+		*options &= ~MPARSE_UTF8;
+	} else if ( ! strcmp(arg, "us-ascii")) {
+		*options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
+	} else {
+		warnx("-K %s: Bad argument", arg);
+		return 0;
+	}
+	return 1;
+}
+
+static void
+moptions(int *options, char *arg)
+{
+
+	if (arg == NULL)
+		return;
+	if (strcmp(arg, "doc") == 0)
+		*options |= MPARSE_MDOC;
+	else if (strcmp(arg, "an") == 0)
+		*options |= MPARSE_MAN;
+}
+
+static int
+toptions(struct curparse *curp, char *arg)
+{
+
+	if (0 == strcmp(arg, "ascii"))
+		curp->outtype = OUTT_ASCII;
+	else if (0 == strcmp(arg, "lint")) {
+		curp->outtype = OUTT_LINT;
+		curp->mmin = MANDOCERR_BASE;
+		mmsg_stream = stdout;
+	} else if (0 == strcmp(arg, "tree"))
+		curp->outtype = OUTT_TREE;
+	else if (0 == strcmp(arg, "man"))
+		curp->outtype = OUTT_MAN;
+	else if (0 == strcmp(arg, "html"))
+		curp->outtype = OUTT_HTML;
+	else if (0 == strcmp(arg, "markdown"))
+		curp->outtype = OUTT_MARKDOWN;
+	else if (0 == strcmp(arg, "utf8"))
+		curp->outtype = OUTT_UTF8;
+	else if (0 == strcmp(arg, "locale"))
+		curp->outtype = OUTT_LOCALE;
+	else if (0 == strcmp(arg, "ps"))
+		curp->outtype = OUTT_PS;
+	else if (0 == strcmp(arg, "pdf"))
+		curp->outtype = OUTT_PDF;
+	else {
+		warnx("-T %s: Bad argument", arg);
+		return 0;
+	}
+
+	return 1;
+}
+
+static int
+woptions(struct curparse *curp, char *arg)
+{
+	char		*v, *o;
+	const char	*toks[11];
+
+	toks[0] = "stop";
+	toks[1] = "all";
+	toks[2] = "base";
+	toks[3] = "style";
+	toks[4] = "warning";
+	toks[5] = "error";
+	toks[6] = "unsupp";
+	toks[7] = "fatal";
+	toks[8] = "openbsd";
+	toks[9] = "netbsd";
+	toks[10] = NULL;
+
+	while (*arg) {
+		o = arg;
+		switch (getsubopt(&arg, (char * const *)toks, &v)) {
+		case 0:
+			curp->wstop = 1;
+			break;
+		case 1:
+		case 2:
+			curp->mmin = MANDOCERR_BASE;
+			break;
+		case 3:
+			curp->mmin = MANDOCERR_STYLE;
+			break;
+		case 4:
+			curp->mmin = MANDOCERR_WARNING;
+			break;
+		case 5:
+			curp->mmin = MANDOCERR_ERROR;
+			break;
+		case 6:
+			curp->mmin = MANDOCERR_UNSUPP;
+			break;
+		case 7:
+			curp->mmin = MANDOCERR_MAX;
+			break;
+		case 8:
+			curp->mmin = MANDOCERR_BASE;
+			curp->os_e = MANDOC_OS_OPENBSD;
+			break;
+		case 9:
+			curp->mmin = MANDOCERR_BASE;
+			curp->os_e = MANDOC_OS_NETBSD;
+			break;
+		default:
+			warnx("-W %s: Bad argument", o);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+static void
+mmsg(enum mandocerr t, enum mandoclevel lvl,
+		const char *file, int line, int col, const char *msg)
+{
+	const char	*mparse_msg;
+
+	fprintf(mmsg_stream, "%s: %s:", getprogname(),
+	    file == NULL ? "<stdin>" : file);
+
+	if (line)
+		fprintf(mmsg_stream, "%d:%d:", line, col + 1);
+
+	fprintf(mmsg_stream, " %s", mparse_strlevel(lvl));
+
+	if ((mparse_msg = mparse_strerror(t)) != NULL)
+		fprintf(mmsg_stream, ": %s", mparse_msg);
+
+	if (msg)
+		fprintf(mmsg_stream, ": %s", msg);
+
+	fputc('\n', mmsg_stream);
+}
+
+static pid_t
+spawn_pager(struct tag_files *tag_files)
+{
+	const struct timespec timeout = { 0, 100000000 };  /* 0.1s */
+#define MAX_PAGER_ARGS 16
+	char		*argv[MAX_PAGER_ARGS];
+	const char	*pager;
+	char		*cp;
+	size_t		 cmdlen;
+	int		 argc;
+	pid_t		 pager_pid;
+
+	pager = getenv("MANPAGER");
+	if (pager == NULL || *pager == '\0')
+		pager = getenv("PAGER");
+	if (pager == NULL || *pager == '\0')
+		pager = "more -s";
+	cp = mandoc_strdup(pager);
+
+	/*
+	 * Parse the pager command into words.
+	 * Intentionally do not do anything fancy here.
+	 */
+
+	argc = 0;
+	while (argc + 4 < MAX_PAGER_ARGS) {
+		argv[argc++] = cp;
+		cp = strchr(cp, ' ');
+		if (cp == NULL)
+			break;
+		*cp++ = '\0';
+		while (*cp == ' ')
+			cp++;
+		if (*cp == '\0')
+			break;
+	}
+
+	/* For less(1), use the tag file. */
+
+	if ((cmdlen = strlen(argv[0])) >= 4) {
+		cp = argv[0] + cmdlen - 4;
+		if (strcmp(cp, "less") == 0) {
+			argv[argc++] = mandoc_strdup("-T");
+			argv[argc++] = tag_files->tfn;
+		}
+	}
+	argv[argc++] = tag_files->ofn;
+	argv[argc] = NULL;
+
+	switch (pager_pid = fork()) {
+	case -1:
+		err((int)MANDOCLEVEL_SYSERR, "fork");
+	case 0:
+		break;
+	default:
+		(void)setpgid(pager_pid, 0);
+		(void)tcsetpgrp(tag_files->ofd, pager_pid);
+#if HAVE_PLEDGE
+		if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+#endif
+		tag_files->pager_pid = pager_pid;
+		return pager_pid;
+	}
+
+	/* The child process becomes the pager. */
+
+	if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
+		err((int)MANDOCLEVEL_SYSERR, "pager stdout");
+	close(tag_files->ofd);
+	close(tag_files->tfd);
+
+	/* Do not start the pager before controlling the terminal. */
+
+	while (tcgetpgrp(STDOUT_FILENO) != getpid())
+		nanosleep(&timeout, NULL);
+
+	execvp(argv[0], argv);
+	err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
+}

Added: vendor/mandoc/dist/main.h
===================================================================
--- vendor/mandoc/dist/main.h	                        (rev 0)
+++ vendor/mandoc/dist/main.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,53 @@
+/*	$Id: main.h,v 1.27 2017/03/03 14:23:23 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct	roff_man;
+struct	manoutput;
+
+/*
+ * Definitions for main.c-visible output device functions, e.g., -Thtml
+ * and -Tascii.  Note that ascii_alloc() is named as such in
+ * anticipation of latin1_alloc() and so on, all of which map into the
+ * terminal output routines with different character settings.
+ */
+
+void		 *html_alloc(const struct manoutput *);
+void		  html_mdoc(void *, const struct roff_man *);
+void		  html_man(void *, const struct roff_man *);
+void		  html_free(void *);
+
+void		  tree_mdoc(void *, const struct roff_man *);
+void		  tree_man(void *, const struct roff_man *);
+
+void		  man_mdoc(void *, const struct roff_man *);
+void		  man_man(void *, const struct roff_man *);
+
+void		 *locale_alloc(const struct manoutput *);
+void		 *utf8_alloc(const struct manoutput *);
+void		 *ascii_alloc(const struct manoutput *);
+void		  ascii_free(void *);
+
+void		 *pdf_alloc(const struct manoutput *);
+void		 *ps_alloc(const struct manoutput *);
+void		  pspdf_free(void *);
+
+void		  terminal_mdoc(void *, const struct roff_man *);
+void		  terminal_man(void *, const struct roff_man *);
+void		  terminal_sepline(void *);
+
+void		  markdown_mdoc(void *, const struct roff_man *);

Added: vendor/mandoc/dist/makewhatis.8
===================================================================
--- vendor/mandoc/dist/makewhatis.8	                        (rev 0)
+++ vendor/mandoc/dist/makewhatis.8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,228 @@
+.\"	$Id: makewhatis.8,v 1.6 2017/05/17 22:27:12 schwarze Exp $
+.\"
+.\" Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2011, 2012, 2014, 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: May 17 2017 $
+.Dt MAKEWHATIS 8
+.Os
+.Sh NAME
+.Nm makewhatis
+.Nd index UNIX manuals
+.Sh SYNOPSIS
+.Nm
+.Op Fl aDnpQ
+.Op Fl T Cm utf8
+.Op Fl C Ar file
+.Nm
+.Op Fl aDnpQ
+.Op Fl T Cm utf8
+.Ar dir ...
+.Nm
+.Op Fl DnpQ
+.Op Fl T Cm utf8
+.Fl d Ar dir
+.Op Ar
+.Nm
+.Op Fl Dnp
+.Op Fl T Cm utf8
+.Fl u Ar dir
+.Op Ar
+.Nm
+.Op Fl DQ
+.Fl t Ar
+.Sh DESCRIPTION
+The
+.Nm
+utility extracts keywords from
+.Ux
+manuals and indexes them in a database for fast retrieval by
+.Xr apropos 1 ,
+.Xr whatis 1 ,
+and
+.Xr man 1 Ns 's
+.Fl k
+option.
+.Pp
+By default,
+.Nm
+creates a database in each
+.Ar dir
+using the files
+.Sm off
+.Sy man Ar section Li /
+.Op Ar arch Li /
+.Ar title . section
+.Sm on
+and
+.Sm off
+.Sy cat Ar section Li /
+.Op Ar arch Li /
+.Ar title . Sy 0
+.Sm on
+in that directory.
+Existing databases are replaced.
+If a directory contains no manual pages, no database is created in that
+directory.
+If
+.Ar dir
+is not provided,
+.Nm
+uses the default paths stipulated by
+.Xr man.conf 5 .
+.Pp
+The arguments are as follows:
+.Bl -tag -width "-C file"
+.It Fl a
+Use all directories and files found below
+.Ar dir ... .
+.It Fl C Ar file
+Specify an alternative configuration
+.Ar file
+in
+.Xr man.conf 5
+format.
+.It Fl D
+Display all files added or removed to the index.
+With a second
+.Fl D ,
+also show all keywords added for each file.
+.It Fl d Ar dir
+Merge (remove and re-add)
+.Ar
+to the database in
+.Ar dir .
+.It Fl n
+Do not create or modify any database; scan and parse only,
+and print manual page names and descriptions to standard output.
+.It Fl p
+Print warnings about potential problems with manual pages
+to the standard error output.
+.It Fl Q
+Quickly build reduced-size databases
+by reading only the NAME sections of manuals.
+The resulting databases will usually contain names and descriptions only.
+.It Fl T Cm utf8
+Use UTF-8 encoding instead of ASCII for strings stored in the databases.
+.It Fl t Ar
+Check the given
+.Ar files
+for potential problems.
+Implies
+.Fl a ,
+.Fl n ,
+and
+.Fl p .
+All diagnostic messages are printed to the standard output;
+the standard error output is not used.
+.It Fl u Ar dir
+Remove
+.Ar
+from the database in
+.Ar dir .
+If that causes the database to become empty, also delete the database file.
+.El
+.Pp
+If fatal parse errors are encountered while parsing, the offending file
+is printed to stderr, omitted from the index, and the parse continues
+with the next input file.
+.Sh ENVIRONMENT
+.Bl -tag -width MANPATH
+.It Ev MANPATH
+A colon-separated list of directories to create databases in.
+Ignored if a
+.Ar dir
+argument or the
+.Fl t
+option is specified.
+.El
+.Sh FILES
+.Bl -tag -width Ds
+.It Pa mandoc.db
+A database of manpages relative to the directory of the file.
+This file is portable across architectures and systems, so long as the
+manpage hierarchy it indexes does not change.
+.It Pa /etc/man.conf
+The default
+.Xr man 1
+configuration file.
+.El
+.Sh EXIT STATUS
+The
+.Nm
+utility exits with one of the following values:
+.Pp
+.Bl -tag -width Ds -compact
+.It 0
+No errors occurred.
+.It 5
+Invalid command line arguments were specified.
+No input files have been read.
+.It 6
+An operating system error occurred, for example memory exhaustion or an
+error accessing input files.
+Such errors cause
+.Nm
+to exit at once, possibly in the middle of parsing or formatting a file.
+The output databases are corrupt and should be removed.
+.El
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr man 1 ,
+.Xr whatis 1 ,
+.Xr man.conf 5
+.Sh HISTORY
+A
+.Nm
+utility first appeared in
+.Bx 2 .
+It was rewritten in
+.Xr perl 1
+for
+.Ox 2.7
+and in C for
+.Ox 5.6 .
+.Pp
+The
+.Ar dir
+argument first appeared in
+.Nx 1.0 ;
+the options
+.Fl dpt
+in
+.Ox 2.7 ;
+the option
+.Fl u
+in
+.Ox 3.4 ;
+and the options
+.Fl aCDnQT
+in
+.Ox 5.6 .
+.Sh AUTHORS
+.An -nosplit
+.An Bill Joy
+wrote the original
+.Bx
+.Nm
+in February 1979,
+.An Marc Espie
+started the Perl version in 2000,
+and the current version of
+.Nm
+was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+and
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .

Added: vendor/mandoc/dist/man.1
===================================================================
--- vendor/mandoc/dist/man.1	                        (rev 0)
+++ vendor/mandoc/dist/man.1	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,384 @@
+.\"	$Id: man.1,v 1.29 2017/05/17 23:23:00 schwarze Exp $
+.\"
+.\" Copyright (c) 1989, 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\" Copyright (c) 2003, 2007, 2008, 2014 Jason McIntyre <jmc at openbsd.org>
+.\" Copyright (c) 2010, 2011, 2014-2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)man.1	8.2 (Berkeley) 1/2/94
+.\"
+.Dd $Mdocdate: May 17 2017 $
+.Dt MAN 1
+.Os
+.Sh NAME
+.Nm man
+.Nd display manual pages
+.Sh SYNOPSIS
+.Nm man
+.Op Fl acfhklw
+.Op Fl C Ar file
+.Op Fl M Ar path
+.Op Fl m Ar path
+.Op Fl S Ar subsection
+.Op Oo Fl s Oc Ar section
+.Ar name ...
+.Sh DESCRIPTION
+The
+.Nm
+utility
+displays the
+manual pages entitled
+.Ar name .
+Pages may be selected according to
+a specific category
+.Pq Ar section
+or
+machine architecture
+.Pq Ar subsection .
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl a
+Display all matching manual pages.
+Normally, only the first page found is displayed.
+.It Fl C Ar file
+Use the specified
+.Ar file
+instead of the default configuration file.
+This permits users to configure their own manual environment.
+See
+.Xr man.conf 5
+for a description of the contents of this file.
+.It Fl c
+Copy the manual page to the standard output instead of using
+.Xr more 1
+to paginate it.
+This is done by default if the standard output is not a terminal device.
+.It Fl f
+A synonym for
+.Xr whatis 1 .
+It searches for
+.Ar name
+in manual page names and displays the header lines from all matching pages.
+The search is case insensitive and matches whole words only.
+.It Fl h
+Display only the SYNOPSIS lines of the requested manual pages.
+Implies
+.Fl a
+and
+.Fl c .
+.It Fl k
+A synonym for
+.Xr apropos 1 .
+Instead of
+.Ar name ,
+an expression can be provided using the syntax described in the
+.Xr apropos 1
+manual.
+By default, it displays the header lines of all matching pages.
+.It Fl l
+A synonym for
+.Xr mandoc 1
+.Fl a .
+The
+.Ar name
+arguments are interpreted as filenames.
+No search is done and
+.Ar file ,
+.Ar path ,
+.Ar section ,
+.Ar subsection ,
+and
+.Fl w
+are ignored.
+.It Fl M Ar path
+Override the list of standard directories which
+.Nm
+searches for manual pages.
+The supplied
+.Ar path
+must be a colon
+.Pq Ql \&:
+separated list of directories.
+This search path may also be set using the environment variable
+.Ev MANPATH .
+.It Fl m Ar path
+Augment the list of standard directories which
+.Nm
+searches for manual pages.
+The supplied
+.Ar path
+must be a colon
+.Pq Ql \&:
+separated list of directories.
+These directories will be searched before the standard directories or
+the directories specified using the
+.Fl M
+option or the
+.Ev MANPATH
+environment variable.
+.It Fl S Ar subsection
+Only show pages for the specified
+.Xr machine 1
+architecture.
+.Ar subsection
+is case insensitive.
+.Pp
+By default manual pages for all architectures are installed.
+Therefore this option can be used to view pages for one
+architecture whilst using another.
+.Pp
+This option overrides the
+.Ev MACHINE
+environment variable.
+.It Oo Fl s Oc Ar section
+Only select manuals from the specified
+.Ar section .
+The currently available sections are:
+.Pp
+.Bl -tag -width "localXXX" -offset indent -compact
+.It 1
+General commands
+.Pq tools and utilities .
+.It 2
+System calls and error numbers.
+.It 3
+Library functions.
+.It 3p
+.Xr perl 1
+programmer's reference guide.
+.It 4
+Device drivers.
+.It 5
+File formats.
+.It 6
+Games.
+.It 7
+Miscellaneous information.
+.It 8
+System maintenance and operation commands.
+.It 9
+Kernel internals.
+.El
+.Pp
+If not specified and a match is found in more than one section,
+the first match is selected from the following list:
+1, 8, 6, 2, 3, 5, 7, 4, 9, 3p.
+.It Fl w
+List the pathnames of all matching manual pages instead of displaying
+any of them.
+.El
+.Pp
+The options
+.Fl IKOTW
+are also supported and are documented in
+.Xr mandoc 1 .
+The options
+.Fl fkl
+are mutually exclusive and override each other.
+.Pp
+Guidelines for writing
+man pages can be found in
+.Xr mdoc 7 .
+.Pp
+If both a formatted and an unformatted version of the same manual page,
+for example
+.Pa cat1/foo.0
+and
+.Pa man1/foo.1 ,
+exist in the same directory, only the unformatted version is used.
+.Sh ENVIRONMENT
+.Bl -tag -width MANPATHX
+.It Ev MACHINE
+As some manual pages are intended only for specific architectures,
+.Nm
+searches any subdirectories,
+with the same name as the current architecture,
+in every directory which it searches.
+Machine specific areas are checked before general areas.
+The current machine type may be overridden by setting the environment
+variable
+.Ev MACHINE
+to the name of a specific architecture,
+or with the
+.Fl S
+option.
+.Ev MACHINE
+is case insensitive.
+.It Ev MANPAGER
+Any non-empty value of the environment variable
+.Ev MANPAGER
+is used instead of the standard pagination program,
+.Xr more 1 .
+If
+.Xr less 1
+is used, the interactive
+.Ic :t
+command can be used to go to the definitions of various terms, for
+example command line options, command modifiers, internal commands,
+environment variables, function names, preprocessor macros,
+.Xr errno 2
+values, and some other emphasized words.
+Some terms may have defining text at more than one place.
+In that case, the
+.Xr less 1
+interactive commands
+.Ic t
+and
+.Ic T
+can be used to move to the next and to the previous place providing
+information about the term last searched for with
+.Ic :t .
+.It Ev MANPATH
+The standard search path used by
+.Nm
+may be changed by specifying a path in the
+.Ev MANPATH
+environment variable.
+The format of the path is a colon
+.Pq Ql \&:
+separated list of directories.
+Invalid paths are ignored.
+Overridden by
+.Fl M ,
+ignored if
+.Fl l
+is specified.
+.Pp
+If
+.Ev MANPATH
+begins with a colon, it is appended to the default list;
+if it ends with a colon, it is prepended to the default list;
+or if it contains two adjacent colons,
+the standard search path is inserted between the colons.
+If none of these conditions are met, it overrides the
+standard search path.
+.It Ev PAGER
+Specifies the pagination program to use when
+.Ev MANPAGER
+is not defined.
+If neither PAGER nor MANPAGER is defined,
+.Xr more 1
+.Fl s
+is used.
+Only used if
+.Fl a
+or
+.Fl l
+is specified.
+.El
+.Sh FILES
+.Bl -tag -width /etc/man.conf -compact
+.It Pa /etc/man.conf
+default man configuration file
+.El
+.Sh EXIT STATUS
+.Ex -std man
+See
+.Xr mandoc 1
+for details.
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr intro 1 ,
+.Xr whereis 1 ,
+.Xr intro 2 ,
+.Xr intro 3 ,
+.Xr intro 4 ,
+.Xr intro 5 ,
+.Xr man.conf 5 ,
+.Xr intro 6 ,
+.Xr intro 7 ,
+.Xr mdoc 7 ,
+.Xr intro 8 ,
+.Xr intro 9
+.Sh STANDARDS
+The
+.Nm
+utility is compliant with the
+.St -p1003.1-2008
+specification.
+.Pp
+The flags
+.Op Fl aCcfhIKlMmOSsTWw ,
+as well as the environment variables
+.Ev MACHINE ,
+.Ev MANPAGER ,
+and
+.Ev MANPATH ,
+are extensions to that specification.
+.Sh HISTORY
+A
+.Nm
+command first appeared in
+.At v3 .
+.Pp
+The
+.Fl w
+option first appeared in
+.At v7 ;
+.Fl f
+and
+.Fl k
+in
+.Bx 4 ;
+.Fl M
+in
+.Bx 4.3 ;
+.Fl a
+in
+.Bx 4.3 Tahoe ;
+.Fl c
+and
+.Fl m
+in
+.Bx 4.3 Reno ;
+.Fl h
+in
+.Bx 4.3 Net/2 ;
+.Fl C
+in
+.Nx 1.0 ;
+.Fl s
+and
+.Fl S
+in
+.Ox 2.3 ;
+and
+.Fl I ,
+.Fl K ,
+.Fl l ,
+.Fl O ,
+and
+.Fl W
+in
+.Ox 5.7 .
+The
+.Fl T
+option first appeared in
+.At III
+and was also added in
+.Ox 5.7 .

Added: vendor/mandoc/dist/man.7
===================================================================
--- vendor/mandoc/dist/man.7	                        (rev 0)
+++ vendor/mandoc/dist/man.7	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,915 @@
+.\"	$Id: man.7,v 1.136 2017/06/25 11:42:02 schwarze Exp $
+.\"
+.\" Copyright (c) 2009, 2010, 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2011-2015 Ingo Schwarze <schwarze at openbsd.org>
+.\" Copyright (c) 2010 Joerg Sonnenberger <joerg at netbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: June 25 2017 $
+.Dt MAN 7
+.Os
+.Sh NAME
+.Nm man
+.Nd legacy formatting language for manual pages
+.Sh DESCRIPTION
+Traditionally, the
+.Nm man
+language has been used to write
+.Ux
+manuals for the
+.Xr man 1
+utility.
+It supports limited control of presentational details like fonts,
+indentation and spacing.
+This reference document describes the structure of manual pages
+and the syntax and usage of the man language.
+.Pp
+.Bf -emphasis
+Do not use
+.Nm
+to write your manuals:
+.Ef
+It lacks support for semantic markup.
+Use the
+.Xr mdoc 7
+language, instead.
+.Pp
+In a
+.Nm
+document, lines beginning with the control character
+.Sq \&.
+are called
+.Dq macro lines .
+The first word is the macro name.
+It usually consists of two capital letters.
+For a list of available macros, see
+.Sx MACRO OVERVIEW .
+The words following the macro name are arguments to the macro.
+.Pp
+Lines not beginning with the control character are called
+.Dq text lines .
+They provide free-form text to be printed; the formatting of the text
+depends on the respective processing context:
+.Bd -literal -offset indent
+\&.SH Macro lines change control state.
+Text lines are interpreted within the current state.
+.Ed
+.Pp
+Many aspects of the basic syntax of the
+.Nm
+language are based on the
+.Xr roff 7
+language; see the
+.Em LANGUAGE SYNTAX
+and
+.Em MACRO SYNTAX
+sections in the
+.Xr roff 7
+manual for details, in particular regarding
+comments, escape sequences, whitespace, and quoting.
+.Sh MANUAL STRUCTURE
+Each
+.Nm
+document must contain the
+.Sx \&TH
+macro describing the document's section and title.
+It may occur anywhere in the document, although conventionally it
+appears as the first macro.
+.Pp
+Beyond
+.Sx \&TH ,
+at least one macro or text line must appear in the document.
+.Pp
+The following is a well-formed skeleton
+.Nm
+file for a utility
+.Qq progname :
+.Bd -literal -offset indent
+\&.TH PROGNAME 1 2009-10-10
+\&.SH NAME
+\efBprogname\efR \e(en one line about what it does
+\&.\e\(dq .SH LIBRARY
+\&.\e\(dq For sections 2, 3, and 9 only.
+\&.\e\(dq Not used in OpenBSD.
+\&.SH SYNOPSIS
+\efBprogname\efR [\efB\e-options\efR] \efIfile ...\efR
+\&.SH DESCRIPTION
+The \efBfoo\efR utility processes files ...
+\&.\e\(dq .Sh CONTEXT
+\&.\e\(dq For section 9 functions only.
+\&.\e\(dq .SH IMPLEMENTATION NOTES
+\&.\e\(dq Not used in OpenBSD.
+\&.\e\(dq .SH RETURN VALUES
+\&.\e\(dq For sections 2, 3, and 9 function return values only.
+\&.\e\(dq .SH ENVIRONMENT
+\&.\e\(dq For sections 1, 6, 7, and 8 only.
+\&.\e\(dq .SH FILES
+\&.\e\(dq .SH EXIT STATUS
+\&.\e\(dq For sections 1, 6, and 8 only.
+\&.\e\(dq .SH EXAMPLES
+\&.\e\(dq .SH DIAGNOSTICS
+\&.\e\(dq For sections 1, 4, 6, 7, 8, and 9 printf/stderr messages only.
+\&.\e\(dq .SH ERRORS
+\&.\e\(dq For sections 2, 3, 4, and 9 errno settings only.
+\&.\e\(dq .SH SEE ALSO
+\&.\e\(dq .BR foobar ( 1 )
+\&.\e\(dq .SH STANDARDS
+\&.\e\(dq .SH HISTORY
+\&.\e\(dq .SH AUTHORS
+\&.\e\(dq .SH CAVEATS
+\&.\e\(dq .SH BUGS
+\&.\e\(dq .SH SECURITY CONSIDERATIONS
+\&.\e\(dq Not used in OpenBSD.
+.Ed
+.Pp
+The sections in a
+.Nm
+document are conventionally ordered as they appear above.
+Sections should be composed as follows:
+.Bl -ohang -offset indent
+.It Em NAME
+The name(s) and a short description of the documented material.
+The syntax for this is generally as follows:
+.Pp
+.D1 \efBname\efR \e(en description
+.It Em LIBRARY
+The name of the library containing the documented material, which is
+assumed to be a function in a section 2 or 3 manual.
+For functions in the C library, this may be as follows:
+.Pp
+.D1 Standard C Library (libc, -lc)
+.It Em SYNOPSIS
+Documents the utility invocation syntax, function call syntax, or device
+configuration.
+.Pp
+For the first, utilities (sections 1, 6, and 8), this is
+generally structured as follows:
+.Pp
+.D1 \efBname\efR [-\efBab\efR] [-\efBc\efR\efIarg\efR] \efBpath\efR...
+.Pp
+For the second, function calls (sections 2, 3, 9):
+.Pp
+.D1 \&.B char *name(char *\efIarg\efR);
+.Pp
+And for the third, configurations (section 4):
+.Pp
+.D1 \&.B name* at cardbus ? function ?
+.Pp
+Manuals not in these sections generally don't need a
+.Em SYNOPSIS .
+.It Em DESCRIPTION
+This expands upon the brief, one-line description in
+.Em NAME .
+It usually contains a break-down of the options (if documenting a
+command).
+.It Em CONTEXT
+This section lists the contexts in which functions can be called in section 9.
+The contexts are autoconf, process, or interrupt.
+.It Em IMPLEMENTATION NOTES
+Implementation-specific notes should be kept here.
+This is useful when implementing standard functions that may have side
+effects or notable algorithmic implications.
+.It Em RETURN VALUES
+This section documents the return values of functions in sections 2, 3, and 9.
+.It Em ENVIRONMENT
+Documents any usages of environment variables, e.g.,
+.Xr environ 7 .
+.It Em FILES
+Documents files used.
+It's helpful to document both the file name and a short description of how
+the file is used (created, modified, etc.).
+.It Em EXIT STATUS
+This section documents the command exit status for
+section 1, 6, and 8 utilities.
+Historically, this information was described in
+.Em DIAGNOSTICS ,
+a practise that is now discouraged.
+.It Em EXAMPLES
+Example usages.
+This often contains snippets of well-formed,
+well-tested invocations.
+Make sure that examples work properly!
+.It Em DIAGNOSTICS
+Documents error conditions.
+In section 4 and 9 manuals, these are usually messages
+printed by the kernel to the console and to the kernel log.
+In section 1, 6, 7, and 8, these are usually messages
+printed by userland programs to the standard error output.
+.Pp
+Historically, this section was used in place of
+.Em EXIT STATUS
+for manuals in sections 1, 6, and 8; however, this practise is
+discouraged.
+.It Em ERRORS
+Documents
+.Xr errno 2
+settings in sections 2, 3, 4, and 9.
+.It Em SEE ALSO
+References other manuals with related topics.
+This section should exist for most manuals.
+.Pp
+.D1 \&.BR bar \&( 1 \&),
+.Pp
+Cross-references should conventionally be ordered
+first by section, then alphabetically.
+.It Em STANDARDS
+References any standards implemented or used, such as
+.Pp
+.D1 IEEE Std 1003.2 (\e(lqPOSIX.2\e(rq)
+.Pp
+If not adhering to any standards, the
+.Em HISTORY
+section should be used.
+.It Em HISTORY
+A brief history of the subject, including where support first appeared.
+.It Em AUTHORS
+Credits to the person or persons who wrote the code and/or documentation.
+Authors should generally be noted by both name and email address.
+.It Em CAVEATS
+Common misuses and misunderstandings should be explained
+in this section.
+.It Em BUGS
+Known bugs, limitations, and work-arounds should be described
+in this section.
+.It Em SECURITY CONSIDERATIONS
+Documents any security precautions that operators should consider.
+.El
+.Sh MACRO OVERVIEW
+This overview is sorted such that macros of similar purpose are listed
+together, to help find the best macro for any given purpose.
+Deprecated macros are not included in the overview, but can be found
+in the alphabetical reference below.
+.Ss Page header and footer meta-data
+.Bl -column "PP, LP, P" description
+.It Sx TH Ta set the title: Ar title section date Op Ar source Op Ar volume
+.It Sx AT Ta display AT&T UNIX version in the page footer (<= 1 argument)
+.It Sx UC Ta display BSD version in the page footer (<= 1 argument)
+.El
+.Ss Sections and paragraphs
+.Bl -column "PP, LP, P" description
+.It Sx SH Ta section header (one line)
+.It Sx SS Ta subsection header (one line)
+.It Sx PP , LP , P Ta start an undecorated paragraph (no arguments)
+.It Sx RS , RE Ta reset the left margin: Op Ar width
+.It Sx IP Ta indented paragraph: Op Ar head Op Ar width
+.It Sx TP Ta tagged paragraph: Op Ar width
+.It Sx HP Ta hanged paragraph: Op Ar width
+.It Sx PD Ta set vertical paragraph distance: Op Ar height
+.It Sx fi , nf Ta fill mode and no-fill mode (no arguments)
+.It Sx in Ta additional indent: Op Ar width
+.El
+.Ss Physical markup
+.Bl -column "PP, LP, P" description
+.It Sx B Ta boldface font
+.It Sx I Ta italic font
+.It Sx R Ta roman (default) font
+.It Sx SB Ta small boldface font
+.It Sx SM Ta small roman font
+.It Sx BI Ta alternate between boldface and italic fonts
+.It Sx BR Ta alternate between boldface and roman fonts
+.It Sx IB Ta alternate between italic and boldface fonts
+.It Sx IR Ta alternate between italic and roman fonts
+.It Sx RB Ta alternate between roman and boldface fonts
+.It Sx RI Ta alternate between roman and italic fonts
+.El
+.Sh MACRO REFERENCE
+This section is a canonical reference to all macros, arranged
+alphabetically.
+For the scoping of individual macros, see
+.Sx MACRO SYNTAX .
+.Ss \&AT
+Sets the volume for the footer for compatibility with man pages from
+.At
+releases.
+The optional arguments specify which release it is from.
+.Ss \&B
+Text is rendered in bold face.
+.Pp
+See also
+.Sx \&I
+and
+.Sx \&R .
+.Ss \&BI
+Text is rendered alternately in bold face and italic.
+Thus,
+.Sq .BI this word and that
+causes
+.Sq this
+and
+.Sq and
+to render in bold face, while
+.Sq word
+and
+.Sq that
+render in italics.
+Whitespace between arguments is omitted in output.
+.Pp
+Examples:
+.Pp
+.Dl \&.BI bold italic bold italic
+.Pp
+The output of this example will be emboldened
+.Dq bold
+and italicised
+.Dq italic ,
+with spaces stripped between arguments.
+.Pp
+See also
+.Sx \&IB ,
+.Sx \&BR ,
+.Sx \&RB ,
+.Sx \&RI ,
+and
+.Sx \&IR .
+.Ss \&BR
+Text is rendered alternately in bold face and roman (the default font).
+Whitespace between arguments is omitted in output.
+.Pp
+See
+.Sx \&BI
+for an equivalent example.
+.Pp
+See also
+.Sx \&BI ,
+.Sx \&IB ,
+.Sx \&RB ,
+.Sx \&RI ,
+and
+.Sx \&IR .
+.Ss \&DT
+Restore the default tabulator positions.
+They are at intervals of 0.5 inches.
+This has no effect unless the tabulator positions were changed with the
+.Xr roff 7
+.Ic \&ta
+request.
+.Ss \&EE
+This is a non-standard GNU extension, included only for compatibility.
+In
+.Xr mandoc 1 ,
+it does the same as
+.Sx \&fi .
+.Ss \&EX
+This is a non-standard GNU extension, included only for compatibility.
+In
+.Xr mandoc 1 ,
+it does the same as
+.Sx \&nf .
+.Ss \&HP
+Begin a paragraph whose initial output line is left-justified, but
+subsequent output lines are indented, with the following syntax:
+.Bd -filled -offset indent
+.Pf \. Sx \&HP
+.Op Ar width
+.Ed
+.Pp
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width.
+If specified, it's saved for later paragraph left-margins; if unspecified, the
+saved or default width is used.
+.Pp
+See also
+.Sx \&IP ,
+.Sx \&LP ,
+.Sx \&P ,
+.Sx \&PP ,
+and
+.Sx \&TP .
+.Ss \&I
+Text is rendered in italics.
+.Pp
+See also
+.Sx \&B
+and
+.Sx \&R .
+.Ss \&IB
+Text is rendered alternately in italics and bold face.
+Whitespace between arguments is omitted in output.
+.Pp
+See
+.Sx \&BI
+for an equivalent example.
+.Pp
+See also
+.Sx \&BI ,
+.Sx \&BR ,
+.Sx \&RB ,
+.Sx \&RI ,
+and
+.Sx \&IR .
+.Ss \&IP
+Begin an indented paragraph with the following syntax:
+.Bd -filled -offset indent
+.Pf \. Sx \&IP
+.Op Ar head Op Ar width
+.Ed
+.Pp
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width defining the left margin.
+It's saved for later paragraph left-margins; if unspecified, the saved or
+default width is used.
+.Pp
+The
+.Ar head
+argument is used as a leading term, flushed to the left margin.
+This is useful for bulleted paragraphs and so on.
+.Pp
+See also
+.Sx \&HP ,
+.Sx \&LP ,
+.Sx \&P ,
+.Sx \&PP ,
+and
+.Sx \&TP .
+.Ss \&IR
+Text is rendered alternately in italics and roman (the default font).
+Whitespace between arguments is omitted in output.
+.Pp
+See
+.Sx \&BI
+for an equivalent example.
+.Pp
+See also
+.Sx \&BI ,
+.Sx \&IB ,
+.Sx \&BR ,
+.Sx \&RB ,
+and
+.Sx \&RI .
+.Ss \&LP
+Begin an undecorated paragraph.
+The scope of a paragraph is closed by a subsequent paragraph,
+sub-section, section, or end of file.
+The saved paragraph left-margin width is reset to the default.
+.Pp
+See also
+.Sx \&HP ,
+.Sx \&IP ,
+.Sx \&P ,
+.Sx \&PP ,
+and
+.Sx \&TP .
+.Ss \&ME
+End a mailto block.
+This is a non-standard GNU extension, included only for compatibility.
+See
+.Sx \&MT .
+.Ss \&MT
+Begin a mailto block.
+This is a non-standard GNU extension, included only for compatibility.
+It has the following syntax:
+.Bd -literal -offset indent
+.Pf \. Sx \&MT Ar address
+link description to be shown
+.Pf \. Sx ME
+.Ed
+.Ss \&OP
+Optional command-line argument.
+This is a non-standard GNU extension, included only for compatibility.
+It has the following syntax:
+.Bd -filled -offset indent
+.Pf \. Sx \&OP
+.Ar key Op Ar value
+.Ed
+.Pp
+The
+.Ar key
+is usually a command-line flag and
+.Ar value
+its argument.
+.Ss \&P
+Synonym for
+.Sx \&LP .
+.Pp
+See also
+.Sx \&HP ,
+.Sx \&IP ,
+.Sx \&LP ,
+.Sx \&PP ,
+and
+.Sx \&TP .
+.Ss \&PD
+Specify the vertical space to be inserted before each new paragraph.
+.br
+The syntax is as follows:
+.Bd -filled -offset indent
+.Pf \. Sx \&PD
+.Op Ar height
+.Ed
+.Pp
+The
+.Ar height
+argument is a
+.Xr roff 7
+scaling width.
+It defaults to
+.Cm 1v .
+If the unit is omitted,
+.Cm v
+is assumed.
+.Pp
+This macro affects the spacing before any subsequent instances of
+.Sx \&HP ,
+.Sx \&IP ,
+.Sx \&LP ,
+.Sx \&P ,
+.Sx \&PP ,
+.Sx \&SH ,
+.Sx \&SS ,
+and
+.Sx \&TP .
+.Ss \&PP
+Synonym for
+.Sx \&LP .
+.Pp
+See also
+.Sx \&HP ,
+.Sx \&IP ,
+.Sx \&LP ,
+.Sx \&P ,
+and
+.Sx \&TP .
+.Ss \&R
+Text is rendered in roman (the default font).
+.Pp
+See also
+.Sx \&I
+and
+.Sx \&B .
+.Ss \&RB
+Text is rendered alternately in roman (the default font) and bold face.
+Whitespace between arguments is omitted in output.
+.Pp
+See
+.Sx \&BI
+for an equivalent example.
+.Pp
+See also
+.Sx \&BI ,
+.Sx \&IB ,
+.Sx \&BR ,
+.Sx \&RI ,
+and
+.Sx \&IR .
+.Ss \&RE
+Explicitly close out the scope of a prior
+.Sx \&RS .
+The default left margin is restored to the state before that
+.Sx \&RS
+invocation.
+.Pp
+The syntax is as follows:
+.Bd -filled -offset indent
+.Pf \. Sx \&RE
+.Op Ar level
+.Ed
+.Pp
+Without an argument, the most recent
+.Sx \&RS
+block is closed out.
+If
+.Ar level
+is 1, all open
+.Sx \&RS
+blocks are closed out.
+Otherwise,
+.Ar level No \(mi 1
+nested
+.Sx \&RS
+blocks remain open.
+.Ss \&RI
+Text is rendered alternately in roman (the default font) and italics.
+Whitespace between arguments is omitted in output.
+.Pp
+See
+.Sx \&BI
+for an equivalent example.
+.Pp
+See also
+.Sx \&BI ,
+.Sx \&IB ,
+.Sx \&BR ,
+.Sx \&RB ,
+and
+.Sx \&IR .
+.Ss \&RS
+Temporarily reset the default left margin.
+This has the following syntax:
+.Bd -filled -offset indent
+.Pf \. Sx \&RS
+.Op Ar width
+.Ed
+.Pp
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width.
+If not specified, the saved or default width is used.
+.Pp
+See also
+.Sx \&RE .
+.Ss \&SB
+Text is rendered in small size (one point smaller than the default font)
+bold face.
+.Ss \&SH
+Begin a section.
+The scope of a section is only closed by another section or the end of
+file.
+The paragraph left-margin width is reset to the default.
+.Ss \&SM
+Text is rendered in small size (one point smaller than the default
+font).
+.Ss \&SS
+Begin a sub-section.
+The scope of a sub-section is closed by a subsequent sub-section,
+section, or end of file.
+The paragraph left-margin width is reset to the default.
+.Ss \&TH
+Sets the title of the manual page for use in the page header
+and footer with the following syntax:
+.Bd -filled -offset indent
+.Pf \. Sx \&TH
+.Ar title section date
+.Op Ar source Op Ar volume
+.Ed
+.Pp
+Conventionally, the document
+.Ar title
+is given in all caps.
+The recommended
+.Ar date
+format is
+.Sy YYYY-MM-DD
+as specified in the ISO-8601 standard;
+if the argument does not conform, it is printed verbatim.
+If the
+.Ar date
+is empty or not specified, the current date is used.
+The optional
+.Ar source
+string specifies the organisation providing the utility.
+When unspecified,
+.Xr mandoc 1
+uses its
+.Fl Ios
+argument.
+The
+.Ar volume
+string replaces the default rendered volume, which is dictated by the
+manual section.
+.Pp
+Examples:
+.Pp
+.Dl \&.TH CVS 5 "1992-02-12" GNU
+.Ss \&TP
+Begin a paragraph where the head, if exceeding the indentation width, is
+followed by a newline; if not, the body follows on the same line after a
+buffer to the indentation width.
+Subsequent output lines are indented.
+The syntax is as follows:
+.Bd -filled -offset indent
+.Pf \. Sx \&TP
+.Op Ar width
+.Ed
+.Pp
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width.
+If specified, it's saved for later paragraph left-margins; if
+unspecified, the saved or default width is used.
+.Pp
+See also
+.Sx \&HP ,
+.Sx \&IP ,
+.Sx \&LP ,
+.Sx \&P ,
+and
+.Sx \&PP .
+.Ss \&UC
+Sets the volume for the footer for compatibility with man pages from
+.Bx
+releases.
+The optional first argument specifies which release it is from.
+.Ss \&UE
+End a uniform resource identifier block.
+This is a non-standard GNU extension, included only for compatibility.
+See
+.Sx \&UE .
+.Ss \&UR
+Begin a uniform resource identifier block.
+This is a non-standard GNU extension, included only for compatibility.
+It has the following syntax:
+.Bd -literal -offset indent
+.Pf \. Sx \&UR Ar uri
+link description to be shown
+.Pf \. Sx UE
+.Ed
+.Ss \&fi
+End literal mode begun by
+.Sx \&nf .
+.Ss \&in
+Indent relative to the current indentation:
+.Pp
+.D1 Pf \. Sx \&in Op Ar width
+.Pp
+If
+.Ar width
+is signed, the new offset is relative.
+Otherwise, it is absolute.
+This value is reset upon the next paragraph, section, or sub-section.
+.Ss \&nf
+Begin literal mode: all subsequent free-form lines have their end of
+line boundaries preserved.
+May be ended by
+.Sx \&fi .
+Literal mode is implicitly ended by
+.Sx \&SH
+or
+.Sx \&SS .
+.Sh MACRO SYNTAX
+The
+.Nm
+macros are classified by scope: line scope or block scope.
+Line macros are only scoped to the current line (and, in some
+situations, the subsequent line).
+Block macros are scoped to the current line and subsequent lines until
+closed by another block macro.
+.Ss Line Macros
+Line macros are generally scoped to the current line, with the body
+consisting of zero or more arguments.
+If a macro is scoped to the next line and the line arguments are empty,
+the next line, which must be text, is used instead.
+Thus:
+.Bd -literal -offset indent
+\&.I
+foo
+.Ed
+.Pp
+is equivalent to
+.Sq \&.I foo .
+If next-line macros are invoked consecutively, only the last is used.
+If a next-line macro is followed by a non-next-line macro, an error is
+raised.
+.Pp
+The syntax is as follows:
+.Bd -literal -offset indent
+\&.YO \(lBbody...\(rB
+\(lBbody...\(rB
+.Ed
+.Bl -column "MacroX" "ArgumentsX" "ScopeXXXXX" "CompatX" -offset indent
+.It Em Macro Ta Em Arguments Ta Em Scope     Ta Em Notes
+.It Sx \&AT  Ta    <=1       Ta    current   Ta    \&
+.It Sx \&B   Ta    n         Ta    next-line Ta    \&
+.It Sx \&BI  Ta    n         Ta    current   Ta    \&
+.It Sx \&BR  Ta    n         Ta    current   Ta    \&
+.It Sx \&DT  Ta    0         Ta    current   Ta    \&
+.It Sx \&EE  Ta    0         Ta    current   Ta    compat
+.It Sx \&EX  Ta    0         Ta    current   Ta    compat
+.It Sx \&I   Ta    n         Ta    next-line Ta    \&
+.It Sx \&IB  Ta    n         Ta    current   Ta    \&
+.It Sx \&IR  Ta    n         Ta    current   Ta    \&
+.It Sx \&OP  Ta    0, 1      Ta    current   Ta    compat
+.It Sx \&PD  Ta    1         Ta    current   Ta    \&
+.It Sx \&R   Ta    n         Ta    next-line Ta    \&
+.It Sx \&RB  Ta    n         Ta    current   Ta    \&
+.It Sx \&RI  Ta    n         Ta    current   Ta    \&
+.It Sx \&SB  Ta    n         Ta    next-line Ta    \&
+.It Sx \&SM  Ta    n         Ta    next-line Ta    \&
+.It Sx \&TH  Ta    >1, <6    Ta    current   Ta    \&
+.It Sx \&UC  Ta    <=1       Ta    current   Ta    \&
+.It Sx \&fi  Ta    0         Ta    current   Ta    compat
+.It Sx \&in  Ta    1         Ta    current   Ta    compat
+.It Sx \&nf  Ta    0         Ta    current   Ta    compat
+.El
+.Pp
+Macros marked as
+.Qq compat
+are included for compatibility with the significant corpus of existing
+manuals that mix dialects of roff.
+These macros should not be used for portable
+.Nm
+manuals.
+.Ss Block Macros
+Block macros comprise a head and body.
+As with in-line macros, the head is scoped to the current line and, in
+one circumstance, the next line (the next-line stipulations as in
+.Sx Line Macros
+apply here as well).
+.Pp
+The syntax is as follows:
+.Bd -literal -offset indent
+\&.YO \(lBhead...\(rB
+\(lBhead...\(rB
+\(lBbody...\(rB
+.Ed
+.Pp
+The closure of body scope may be to the section, where a macro is closed
+by
+.Sx \&SH ;
+sub-section, closed by a section or
+.Sx \&SS ;
+part, closed by a section, sub-section, or
+.Sx \&RE ;
+or paragraph, closed by a section, sub-section, part,
+.Sx \&HP ,
+.Sx \&IP ,
+.Sx \&LP ,
+.Sx \&P ,
+.Sx \&PP ,
+or
+.Sx \&TP .
+No closure refers to an explicit block closing macro.
+.Pp
+As a rule, block macros may not be nested; thus, calling a block macro
+while another block macro scope is open, and the open scope is not
+implicitly closed, is syntactically incorrect.
+.Bl -column "MacroX" "ArgumentsX" "Head ScopeX" "sub-sectionX" "compatX" -offset indent
+.It Em Macro Ta Em Arguments Ta Em Head Scope Ta Em Body Scope  Ta Em Notes
+.It Sx \&HP  Ta    <2        Ta    current    Ta    paragraph   Ta    \&
+.It Sx \&IP  Ta    <3        Ta    current    Ta    paragraph   Ta    \&
+.It Sx \&LP  Ta    0         Ta    current    Ta    paragraph   Ta    \&
+.It Sx \&P   Ta    0         Ta    current    Ta    paragraph   Ta    \&
+.It Sx \&PP  Ta    0         Ta    current    Ta    paragraph   Ta    \&
+.It Sx \&RE  Ta    0         Ta    current    Ta    none        Ta    compat
+.It Sx \&RS  Ta    1         Ta    current    Ta    part        Ta    compat
+.It Sx \&SH  Ta    >0        Ta    next-line  Ta    section     Ta    \&
+.It Sx \&SS  Ta    >0        Ta    next-line  Ta    sub-section Ta    \&
+.It Sx \&TP  Ta    n         Ta    next-line  Ta    paragraph   Ta    \&
+.It Sx \&UE  Ta    0         Ta    current    Ta    none        Ta    compat
+.It Sx \&UR  Ta    1         Ta    current    Ta    part        Ta    compat
+.El
+.Pp
+Macros marked
+.Qq compat
+are as mentioned in
+.Sx Line Macros .
+.Pp
+If a block macro is next-line scoped, it may only be followed by in-line
+macros for decorating text.
+.Ss Font handling
+In
+.Nm
+documents, both
+.Sx Physical markup
+macros and
+.Xr roff 7
+.Ql \ef
+font escape sequences can be used to choose fonts.
+In text lines, the effect of manual font selection by escape sequences
+only lasts until the next macro invocation; in macro lines, it only lasts
+until the end of the macro scope.
+Note that macros like
+.Sx \&BR
+open and close a font scope for each argument.
+.Sh SEE ALSO
+.Xr man 1 ,
+.Xr mandoc 1 ,
+.Xr eqn 7 ,
+.Xr mandoc_char 7 ,
+.Xr mdoc 7 ,
+.Xr roff 7 ,
+.Xr tbl 7
+.Sh HISTORY
+The
+.Nm
+language first appeared as a macro package for the roff typesetting
+system in
+.At v7 .
+It was later rewritten by James Clark as a macro package for groff.
+Eric S. Raymond wrote the extended
+.Nm
+macros for groff in 2007.
+The stand-alone implementation that is part of the
+.Xr mandoc 1
+utility written by Kristaps Dzonsons appeared in
+.Ox 4.6 .
+.Sh AUTHORS
+This
+.Nm
+reference was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv .
+.Sh CAVEATS
+Do not use this language.
+Use
+.Xr mdoc 7 ,
+instead.

Added: vendor/mandoc/dist/man.c
===================================================================
--- vendor/mandoc/dist/man.c	                        (rev 0)
+++ vendor/mandoc/dist/man.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,383 @@
+/*	$Id: man.c,v 1.176 2017/06/28 12:52:45 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2011 Joerg Sonnenberger <joerg at netbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "man.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libman.h"
+
+static	void		 man_descope(struct roff_man *, int, int);
+static	int		 man_ptext(struct roff_man *, int, char *, int);
+static	int		 man_pmacro(struct roff_man *, int, char *, int);
+
+
+int
+man_parseln(struct roff_man *man, int ln, char *buf, int offs)
+{
+
+	if (man->last->type != ROFFT_EQN || ln > man->last->line)
+		man->flags |= MAN_NEWLINE;
+
+	return roff_getcontrol(man->roff, buf, &offs) ?
+	    man_pmacro(man, ln, buf, offs) :
+	    man_ptext(man, ln, buf, offs);
+}
+
+static void
+man_descope(struct roff_man *man, int line, int offs)
+{
+	/*
+	 * Co-ordinate what happens with having a next-line scope open:
+	 * first close out the element scope (if applicable), then close
+	 * out the block scope (also if applicable).
+	 */
+
+	if (man->flags & MAN_ELINE) {
+		man->flags &= ~MAN_ELINE;
+		man_unscope(man, man->last->parent);
+	}
+	if ( ! (man->flags & MAN_BLINE))
+		return;
+	man->flags &= ~MAN_BLINE;
+	man_unscope(man, man->last->parent);
+	roff_body_alloc(man, line, offs, man->last->tok);
+}
+
+static int
+man_ptext(struct roff_man *man, int line, char *buf, int offs)
+{
+	int		 i;
+	const char 	*cp, *sp;
+	char		*ep;
+
+	/* Literal free-form text whitespace is preserved. */
+
+	if (man->flags & MAN_LITERAL) {
+		roff_word_alloc(man, line, offs, buf + offs);
+		man_descope(man, line, offs);
+		return 1;
+	}
+
+	for (i = offs; buf[i] == ' '; i++)
+		/* Skip leading whitespace. */ ;
+
+	/*
+	 * Blank lines are ignored in next line scope
+	 * and right after headings and cancel preceding \c,
+	 * but add a single vertical space elsewhere.
+	 */
+
+	if (buf[i] == '\0') {
+		if (man->flags & (MAN_ELINE | MAN_BLINE)) {
+			mandoc_msg(MANDOCERR_BLK_BLANK, man->parse,
+			    line, 0, NULL);
+			return 1;
+		}
+		if (man->last->tok == MAN_SH || man->last->tok == MAN_SS)
+			return 1;
+		switch (man->last->type) {
+		case ROFFT_TEXT:
+			sp = man->last->string;
+			cp = ep = strchr(sp, '\0') - 2;
+			if (cp < sp || cp[0] != '\\' || cp[1] != 'c')
+				break;
+			while (cp > sp && cp[-1] == '\\')
+				cp--;
+			if ((ep - cp) % 2)
+				break;
+			*ep = '\0';
+			return 1;
+		default:
+			break;
+		}
+		roff_elem_alloc(man, line, offs, ROFF_sp);
+		man->next = ROFF_NEXT_SIBLING;
+		return 1;
+	}
+
+	/*
+	 * Warn if the last un-escaped character is whitespace. Then
+	 * strip away the remaining spaces (tabs stay!).
+	 */
+
+	i = (int)strlen(buf);
+	assert(i);
+
+	if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
+		if (i > 1 && '\\' != buf[i - 2])
+			mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
+			    line, i - 1, NULL);
+
+		for (--i; i && ' ' == buf[i]; i--)
+			/* Spin back to non-space. */ ;
+
+		/* Jump ahead of escaped whitespace. */
+		i += '\\' == buf[i] ? 2 : 1;
+
+		buf[i] = '\0';
+	}
+	roff_word_alloc(man, line, offs, buf + offs);
+
+	/*
+	 * End-of-sentence check.  If the last character is an unescaped
+	 * EOS character, then flag the node as being the end of a
+	 * sentence.  The front-end will know how to interpret this.
+	 */
+
+	assert(i);
+	if (mandoc_eos(buf, (size_t)i))
+		man->last->flags |= NODE_EOS;
+
+	man_descope(man, line, offs);
+	return 1;
+}
+
+static int
+man_pmacro(struct roff_man *man, int ln, char *buf, int offs)
+{
+	struct roff_node *n;
+	const char	*cp;
+	size_t		 sz;
+	enum roff_tok	 tok;
+	int		 ppos;
+	int		 bline;
+
+	/* Determine the line macro. */
+
+	ppos = offs;
+	tok = TOKEN_NONE;
+	for (sz = 0; sz < 4 && strchr(" \t\\", buf[offs]) == NULL; sz++)
+		offs++;
+	if (sz > 0 && sz < 4)
+		tok = roffhash_find(man->manmac, buf + ppos, sz);
+	if (tok == TOKEN_NONE) {
+		mandoc_msg(MANDOCERR_MACRO, man->parse,
+		    ln, ppos, buf + ppos - 1);
+		return 1;
+	}
+
+	/* Skip a leading escape sequence or tab. */
+
+	switch (buf[offs]) {
+	case '\\':
+		cp = buf + offs + 1;
+		mandoc_escape(&cp, NULL, NULL);
+		offs = cp - buf;
+		break;
+	case '\t':
+		offs++;
+		break;
+	default:
+		break;
+	}
+
+	/* Jump to the next non-whitespace word. */
+
+	while (buf[offs] == ' ')
+		offs++;
+
+	/*
+	 * Trailing whitespace.  Note that tabs are allowed to be passed
+	 * into the parser as "text", so we only warn about spaces here.
+	 */
+
+	if (buf[offs] == '\0' && buf[offs - 1] == ' ')
+		mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
+		    ln, offs - 1, NULL);
+
+	/*
+	 * Some macros break next-line scopes; otherwise, remember
+	 * whether we are in next-line scope for a block head.
+	 */
+
+	man_breakscope(man, tok);
+	bline = man->flags & MAN_BLINE;
+
+	/*
+	 * If the line in next-line scope ends with \c, keep the
+	 * next-line scope open for the subsequent input line.
+	 * That is not at all portable, only groff >= 1.22.4
+	 * does it, but *if* this weird idiom occurs in a manual
+	 * page, that's very likely what the author intended.
+	 */
+
+	if (bline) {
+		cp = strchr(buf + offs, '\0') - 2;
+		if (cp >= buf && cp[0] == '\\' && cp[1] == 'c')
+			bline = 0;
+	}
+
+	/* Call to handler... */
+
+	assert(man_macros[tok].fp);
+	(*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
+
+	/* In quick mode (for mandocdb), abort after the NAME section. */
+
+	if (man->quick && tok == MAN_SH) {
+		n = man->last;
+		if (n->type == ROFFT_BODY &&
+		    strcmp(n->prev->child->string, "NAME"))
+			return 2;
+	}
+
+	/*
+	 * If we are in a next-line scope for a block head,
+	 * close it out now and switch to the body,
+	 * unless the next-line scope is allowed to continue.
+	 */
+
+	if ( ! bline || man->flags & MAN_ELINE ||
+	    man_macros[tok].flags & MAN_NSCOPED)
+		return 1;
+
+	assert(man->flags & MAN_BLINE);
+	man->flags &= ~MAN_BLINE;
+
+	man_unscope(man, man->last->parent);
+	roff_body_alloc(man, ln, ppos, man->last->tok);
+	return 1;
+}
+
+void
+man_breakscope(struct roff_man *man, int tok)
+{
+	struct roff_node *n;
+
+	/*
+	 * An element next line scope is open,
+	 * and the new macro is not allowed inside elements.
+	 * Delete the element that is being broken.
+	 */
+
+	if (man->flags & MAN_ELINE && (tok < MAN_TH ||
+	    ! (man_macros[tok].flags & MAN_NSCOPED))) {
+		n = man->last;
+		if (n->type == ROFFT_TEXT)
+			n = n->parent;
+		if (n->tok < MAN_TH ||
+		    man_macros[n->tok].flags & MAN_NSCOPED)
+			n = n->parent;
+
+		mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
+		    n->line, n->pos, "%s breaks %s",
+		    roff_name[tok], roff_name[n->tok]);
+
+		roff_node_delete(man, n);
+		man->flags &= ~MAN_ELINE;
+	}
+
+	/*
+	 * Weird special case:
+	 * Switching fill mode closes section headers.
+	 */
+
+	if (man->flags & MAN_BLINE &&
+	    (tok == MAN_nf || tok == MAN_fi) &&
+	    (man->last->tok == MAN_SH || man->last->tok == MAN_SS)) {
+		n = man->last;
+		man_unscope(man, n);
+		roff_body_alloc(man, n->line, n->pos, n->tok);
+		man->flags &= ~MAN_BLINE;
+	}
+
+	/*
+	 * A block header next line scope is open,
+	 * and the new macro is not allowed inside block headers.
+	 * Delete the block that is being broken.
+	 */
+
+	if (man->flags & MAN_BLINE && (tok < MAN_TH ||
+	    man_macros[tok].flags & MAN_BSCOPE)) {
+		n = man->last;
+		if (n->type == ROFFT_TEXT)
+			n = n->parent;
+		if (n->tok < MAN_TH ||
+		    (man_macros[n->tok].flags & MAN_BSCOPE) == 0)
+			n = n->parent;
+
+		assert(n->type == ROFFT_HEAD);
+		n = n->parent;
+		assert(n->type == ROFFT_BLOCK);
+		assert(man_macros[n->tok].flags & MAN_SCOPED);
+
+		mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
+		    n->line, n->pos, "%s breaks %s",
+		    roff_name[tok], roff_name[n->tok]);
+
+		roff_node_delete(man, n);
+		man->flags &= ~MAN_BLINE;
+	}
+}
+
+const struct mparse *
+man_mparse(const struct roff_man *man)
+{
+
+	assert(man && man->parse);
+	return man->parse;
+}
+
+void
+man_state(struct roff_man *man, struct roff_node *n)
+{
+
+	switch(n->tok) {
+	case MAN_nf:
+	case MAN_EX:
+		if (man->flags & MAN_LITERAL && ! (n->flags & NODE_VALID))
+			mandoc_msg(MANDOCERR_NF_SKIP, man->parse,
+			    n->line, n->pos, "nf");
+		man->flags |= MAN_LITERAL;
+		break;
+	case MAN_fi:
+	case MAN_EE:
+		if ( ! (man->flags & MAN_LITERAL) &&
+		     ! (n->flags & NODE_VALID))
+			mandoc_msg(MANDOCERR_FI_SKIP, man->parse,
+			    n->line, n->pos, "fi");
+		man->flags &= ~MAN_LITERAL;
+		break;
+	default:
+		break;
+	}
+	man->last->flags |= NODE_VALID;
+}
+
+void
+man_validate(struct roff_man *man)
+{
+
+	man->last = man->first;
+	man_node_validate(man);
+	man->flags &= ~MAN_LITERAL;
+}

Added: vendor/mandoc/dist/man.cgi.3
===================================================================
--- vendor/mandoc/dist/man.cgi.3	                        (rev 0)
+++ vendor/mandoc/dist/man.cgi.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,310 @@
+.\"	$Id: man.cgi.3,v 1.4 2017/03/15 13:18:53 schwarze Exp $
+.\"
+.\" Copyright (c) 2016, 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: March 15 2017 $
+.Dt MAN.CGI 3
+.Os
+.Sh NAME
+.Nm man.cgi
+.Nd internals of the CGI program to search and display manual pages
+.Sh DESCRIPTION
+The source code of
+.Xr man.cgi 8
+is organized in four levels:
+.Pp
+.Bl -enum -compact
+.It
+.Sx Top level
+.It
+.Sx Page generators
+.It
+.Sx Result generators
+.It
+.Sx Utility routines
+.El
+.Ss Top level
+The top level of
+.Xr man.cgi 8
+consists of the
+.Fn main
+program and a few parser routines.
+.Bl -tag -width 1n
+.It Ft int Fn main void
+The main program
+.Bl -dash -compact
+.It
+limits execution time;
+.It
+changes to
+.Dv MAN_DIR ,
+the data directory containing all the manual trees;
+.It
+calls
+.Fn parse_manpath_conf ;
+.It
+if
+.Ev PATH_INFO
+is empty, calls
+.Fn parse_query_string ;
+otherwise,
+calls
+.Fn parse_path_info ;
+.It
+validates the manpath and the architecture;
+.It
+calls the appropriate one among the
+.Sx Page generators .
+.El
+.It Ft void Fn parse_manpath_conf "struct req *req"
+Parses and validates
+.Pa manpath.conf
+and fills
+.Va req->p
+and
+.Va req->psz .
+.It Ft void Fn parse_path_info "struct req *req" "const char *path"
+Parses and validates
+.Ev PATH_INFO ,
+clears
+.Va req->isquery ,
+and fills
+.Va req->q .
+.It Ft void Fn parse_query_string "struct req *req" "const char *qs"
+Parses and validates
+.Ev QUERY_STRING ,
+sets
+.Va req->isquery ,
+and fills
+.Va req->q .
+This function is the only user of the utility functions
+.Fn http_decode
+and
+.Fn set_query_attr .
+.El
+.Ss Page generators
+The purpose of each page generator is to print a complete HTML page,
+starting with the HTTP headers and continuing to the page footer.
+Before starting HTML output with
+.Fn resp_begin_html ,
+some page generators do some preparatory work, for example to decide
+which page to show.
+Each page generator ends with a call to
+.Fn resp_end_html .
+.Bl -tag -width 1n
+.It Ft void Fn pg_show "struct req *req" "const char *fullpath"
+This page generator is used when
+.Ev PATH_INFO
+contains the complete path to a manual page including manpath,
+section directory, optional architecture subdirectory, manual name
+and section number suffix.
+It validates the manpath, changes into it, validate the filename,
+and then calls
+.Fn resp_begin_html ,
+.Fn resp_searchform ,
+.Fn resp_show ,
+and
+.Fn resp_end_html
+in that order.
+.It Ft void Fn pg_search "const struct req *req"
+This page generator is used when
+.Ev PATH_INFO
+contains a search query in short format or when
+.Ev PATH_INFO
+is empty and a
+.Ev QUERY_STRING
+is provided.
+If possible, requests using
+.Ev QUERY_STRING
+are redirected to URIs using
+.Ev PATH_INFO
+by calling
+.Fn pg_redirect .
+Otherwise, it changes into the manpath and calls
+.Xr mansearch 3 .
+Depending on the result, it calls either
+.Fn pg_noresult
+or
+.Fn pg_searchres .
+.It Ft void Fn pg_redirect "const struct req *req" "const char *name"
+This function is special in so far as it does not print an HTML page,
+but only an HTTP 303 response with a Location: of the form:
+.Sm off
+.No http://
+.Ar host Ns /
+.Op Ar scriptname Ns /
+.Op Ar manpath Ns /
+.Op Ar arch Ns /
+.Fa name
+.Op Pf . Ar sec
+.Sm on
+.It Ft void Fn pg_noresult "const struct req *req" "const char *msg"
+This function calls
+.Fn resp_begin_html ,
+.Fn resp_searchform ,
+prints the
+.Fa msg
+passed to it, and calls
+.Fn resp_end_html .
+.It Ft void Fn pg_searchres "const struct req *req" "struct manpage *r"\
+ "size_t sz"
+This function first validates the filenames found.
+If
+.Ev QUERY_STRING
+was used and there is exactly one result,
+it writes an HTTP redirect to that result.
+Otherwise, it writes an HTML result page beginning with
+.Fn resp_begin_html
+and
+.Fn resp_searchform .
+If there is more than one result, it writes a list of links
+to all the results.
+If it was a
+.Xr man 1
+rather than an
+.Xr apropos 1
+query or if there is only one single result, it calls
+.Fn resp_show .
+Finally, it calls
+.Fn resp_end_html .
+.It Ft void Fn pg_index "const struct req *req"
+This page generator is used when
+.Ev PATH_INFO
+and
+.Ev QUERY_STRING
+are both empty.
+It calls
+.Fn resp_begin_html
+and
+.Fn resp_searchform ,
+writes links to help pages, and calls
+.Fn resp_end_html .
+.It Ft void Fn pg_error_badrequest "const char *msg"
+This page generator is used when
+.Fn main
+or
+.Fn pg_show
+detect an invalid URI.
+It calls
+.Fn resp_begin_html ,
+prints the
+.Fa msg
+provided, and calls
+.Fn resp_end_html .
+.It Ft void Fn pg_error_internal void
+This page generator is used by various functions when errors are
+detected in the
+.Pa manpath.conf
+configuration file, in
+.Xr mandoc.db 5
+databases, in the
+.Xr mandoc 3
+parser, in file system permissions, or when setting up timeouts.
+It calls
+.Fn resp_begin_html ,
+prints
+.Qq "Internal Server Error" ,
+and calls
+.Fn resp_end_html .
+Before calling
+.Fn pg_error_internal ,
+call
+.Xr warn 3
+or
+.Xr warnx 3
+to log the reason of the error to the
+.Xr httpd 8
+server log file.
+.El
+.Ss Result generators
+The purpose of result generators is to print a chunk of HTML code.
+When they print untrusted strings or characters,
+.Fn html_print
+and
+.Fn html_putchar
+are used.
+The highest level result generators are:
+.Bl -tag -width 1n
+.It Ft void Fn resp_begin_html "int code" "const char *msg" "const char *file"
+This generator calls
+.Fn resp_begin_http
+to print the HTTP headers, then prints the HTML header up to the
+opening tag of the <body> element, then copies the file
+.Pa header.html
+to the output, if it exists and is readable.
+If
+.Fa file
+is not
+.Dv NULL ,
+it is used for the <title> element.
+.It Ft void Fn resp_searchform "const struct req *req" "enum focus focus"
+This generator prints a search form, filling it with data
+from the provided request object.
+If the
+.Fa focus
+argument is
+.Dv FOCUS_QUERY ,
+it sets the document's autofocus to the query input box.
+.It Ft void Fn resp_show "const struct req *req" "const char *file"
+This wrapper dispatches to either
+.Fn resp_catman
+or
+.Fn resp_format ,
+depending on whether
+.Ar file
+starts with
+.Pa cat
+or
+.Pa man ,
+respectively.
+.It Ft void Fn resp_catman "const struct req *req" "const char *file"
+This generator translates a preformatted, backspace-encoded manual
+page to HTML and prints it to the output.
+.It Ft void Fn resp_format "const struct req *req" "const char *file"
+This generator formats a manual page on the standard output,
+using the functions documented in
+.Xr mchars_alloc 3
+and
+.Xr mandoc 3 .
+.It Ft void Fn resp_end_html void
+This generator copies the file
+.Pa footer.html
+to the output, if it exists and is readable,
+and closes the <body> and <html> elements.
+.El
+.Ss Utility routines
+These functions take a string and return 1 if it is valid, or 0 otherwise.
+.Bl -tag -width 1n
+.It Ft int Fn validate_urifrag "const char *frag"
+Checks that the string only contains alphanumeric ASCII characters,
+dashes, dots, slashes, and underscores.
+.It Ft int Fn validate_manpath "const struct req *req" "const char* manpath"
+Checks that the string is either
+.Qq mandoc
+or one of the manpaths configured in
+.Pa manpath.conf .
+.It Ft int Fn validate_filename "const char *file"
+Checks that the string starts with
+.Qq man
+or
+.Qq cat
+and does not ascend to parent directories.
+.El
+.Sh SEE ALSO
+.Xr mandoc 3 ,
+.Xr mansearch 3 ,
+.Xr mchars_alloc 3 ,
+.Xr mandoc.db 5 ,
+.Xr man.cgi 8

Added: vendor/mandoc/dist/man.cgi.8
===================================================================
--- vendor/mandoc/dist/man.cgi.8	                        (rev 0)
+++ vendor/mandoc/dist/man.cgi.8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,421 @@
+.\"	$Id: man.cgi.8,v 1.22 2017/03/18 16:48:24 schwarze Exp $
+.\"
+.\" Copyright (c) 2014, 2015, 2016 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: March 18 2017 $
+.Dt MAN.CGI 8
+.Os
+.Sh NAME
+.Nm man.cgi
+.Nd CGI program to search and display manual pages
+.Sh DESCRIPTION
+The
+.Nm
+CGI program searches for manual pages on a WWW server
+and displays them to HTTP clients,
+providing functionality equivalent to the
+.Xr man 1
+and
+.Xr apropos 1
+utilities.
+It can use multiple manual trees in parallel.
+.Ss HTML search interface
+At the top of each generated HTML page,
+.Nm
+displays a search form containing these elements:
+.Bl -enum
+.It
+An input box for search queries, expecting
+either a name of a manual page or an
+.Ar expression
+using the syntax described in the
+.Xr apropos 1
+manual; filling this in is required for each search.
+.Pp
+The expression is broken into words at whitespace.
+Whitespace characters and backslashes can be escaped
+by prepending a backslash.
+The effect of prepending a backslash to another character is undefined;
+in the current implementation, it has no effect.
+.It
+A
+.Xr man 1
+submit button.
+The string in the input box is interpreted as the name of a manual page.
+.It
+An
+.Xr apropos 1
+submit button.
+The string in the input box is interpreted as a search
+.Ar expression .
+.It
+A dropdown menu to optionally select a manual section.
+If one is provided, it has the same effect as the
+.Xr man 1
+and
+.Xr apropos 1
+.Fl s
+option.
+Otherwise, pages from all sections are shown.
+.It
+A dropdown menu to optionally select an architecture.
+If one is provided, it has the same effect as the
+.Xr man 1
+and
+.Xr apropos 1
+.Fl S
+option.
+By default, pages for all architectures are shown.
+.It
+A dropdown menu to select a manual tree.
+If the configuration file
+.Pa /var/www/man/manpath.conf
+contains only one manpath, the dropdown menu is not shown.
+By default, the first manpath given in the file is used.
+.El
+.Ss Program output
+The
+.Nm
+program generates five kinds of output pages:
+.Bl -tag -width Ds
+.It The index page.
+This is returned when calling
+.Nm
+without
+.Ev PATH_INFO
+and without a
+.Ev QUERY_STRING .
+It serves as a starting point for using the program
+and shows the search form only.
+.It A list page.
+Lists are returned when searches match more than one manual page.
+The first column shows the names and section numbers of manuals
+as clickable links.
+The second column shows the one-line descriptions of the manuals.
+.It A manual page.
+This output format is used when a search matches exactly one
+manual page, or when a link on a list page or an
+.Ic \&Xr
+link on another manual page is followed.
+.It A no-result page.
+This is shown when a search request returns no results -
+eiher because it violates the query syntax, or because
+the search does not match any manual pages.
+.It \&An error page.
+This cannot happen by merely clicking the
+.Dq Search
+button, but only by manually entering an invalid URI.
+It does not show the search form, but only an error message
+and a link back to the index page.
+.El
+.Ss Setup
+For each manual tree, create one first-level subdirectory below
+.Pa /var/www/man .
+The name of one of these directories is called a
+.Dq manpath
+in the context of
+.Nm .
+Create a single ASCII text file
+.Pa /var/www/man/manpath.conf
+containing the names of these directories, one per line.
+The directory given first is used as the default manpath.
+.Pp
+Inside each of these directories, use the same directory and file
+structure as found below
+.Pa /usr/share/man ,
+that is, second-level subdirectories
+.Pa /var/www/man/*/man1 , /var/www/man/*/man2
+etc. containing source
+.Xr mdoc 7
+and
+.Xr man 7
+manuals with file name extensions matching the section numbers,
+second-level subdirectories
+.Pa /var/www/man/*/cat1 , /var/www/man/*/cat2
+etc. containing preformatted manuals with the file name extension
+.Sq 0 ,
+and optional third-level subdirectories for architectures.
+Use
+.Xr makewhatis 8
+to create a
+.Xr mandoc.db 5
+database inside each manpath.
+.Pp
+Configure your web server to execute CGI programs located in
+.Pa /cgi-bin .
+When using
+.Ox
+.Xr httpd 8 ,
+the
+.Xr slowcgi 8
+proxy daemon is needed to translate FastCGI requests to plain old CGI.
+.Pp
+To compile
+.Nm ,
+first copy
+.Pa cgi.h.example
+to
+.Pa cgi.h
+and edit it according to your needs.
+It contains the following compile-time definitions:
+.Bl -tag -width Ds
+.It Ev COMPAT_OLDURI
+Only useful for running on www.openbsd.org to deal with old URIs containing
+.Qq "manpath=OpenBSD "
+where the blank character has to be translated to a hyphen.
+When compiling for other sites, this definition can be deleted.
+.It Dv CSS_DIR
+An optional file system path to the directory containing the file
+.Pa mandoc.css ,
+to be specified relative to the server's document root,
+and to be specified without a trailing slash.
+When empty, the CSS file is assumed to be in the document root.
+Otherwise, a leading slash is needed.
+This is used in generated HTML code.
+.It Dv CUSTOMIZE_TITLE
+An ASCII string to be used for the HTML <TITLE> element.
+.It Dv MAN_DIR
+A file system path to the
+.Nm
+data directory relative to the web server
+.Xr chroot 2
+directory, to be specified with a leading slash and without a trailing slash.
+It needs to have at least one component; the root directory cannot be used
+for this purpose.
+The files
+.Pa manpath.conf ,
+.Pa header.html ,
+and
+.Pa footer.html
+are looked up in this directory.
+It is also prepended to the manpath when opening
+.Xr mandoc.db 5
+and manual page files.
+.It Dv SCRIPT_NAME
+The initial component of URIs, to be specified without leading
+and trailing slashes.
+It can be empty.
+.El
+.Pp
+After editing
+.Pa cgi.h ,
+run
+.Pp
+.Dl make man.cgi
+.Pp
+and copy the resulting binary to the proper location,
+for example using the command:
+.Pp
+.Dl make installcgi
+.Pp
+In addition to that, make sure the default manpath contains the files
+.Pa man1/apropos.1
+and
+.Pa man8/man.cgi.8 ,
+or the documentation links at the bottom of the index page will not work.
+.Ss URI interface
+.Nm
+uniform resource identifiers are not needed for interactive use,
+but can be useful for deep linking.
+They consist of:
+.Bl -enum
+.It
+The
+.Cm http://
+protocol specifier.
+.It
+The host name.
+.It
+The
+.Dv SCRIPT_NAME ,
+preceded by a slash unless empty.
+.It
+To show a single page, a slash, the manpath, another slash,
+and the name of the requested file, for example
+.Pa /OpenBSD-current/man1/mandoc.1 .
+This can be abbreviated according to the following syntax:
+.Sm off
+.Op / Ar manpath
+.Op / Cm man Ar sec
+.Op / Ar arch
+.Pf / Ar name Op \&. Ar sec
+.Sm on
+.It
+For searches, a query string starting with a question mark
+and consisting of
+.Ar key Ns = Ns Ar value
+pairs, separated by ampersands, for example
+.Pa ?manpath=OpenBSD-current&query=mandoc .
+Supported keys are
+.Cm manpath ,
+.Cm query ,
+.Cm sec ,
+.Cm arch ,
+corresponding to
+.Xr apropos 1
+.Fl M ,
+.Ar expression ,
+.Fl s ,
+.Fl S ,
+respectively, and
+.Cm apropos ,
+which is a boolean parameter to select or deselect the
+.Xr apropos 1
+query mode.
+For backward compatibility with the traditional
+.Nm ,
+.Cm sektion
+is supported as an alias for
+.Cm sec .
+.El
+.Ss Restricted character set
+For security reasons, in particular to prevent cross site scripting
+attacks, some strings used by
+.Nm
+can only contain the following characters:
+.Pp
+.Bl -dash -compact -offset indent
+.It
+lower case and upper case ASCII letters
+.It
+the ten decimal digits
+.It
+the dash
+.Pq Sq -
+.It
+the dot
+.Pq Sq \&.
+.It
+the slash
+.Pq Sq /
+.It
+the underscore
+.Pq Sq _
+.El
+.Pp
+In particular, this applies to all manpaths and architecture names.
+.Sh ENVIRONMENT
+The web server may pass the following CGI variables to
+.Nm :
+.Bl -tag -width Ds
+.It Ev SCRIPT_NAME
+The initial part of the URI passed from the client to the server,
+starting after the server's host name and ending before
+.Ev PATH_INFO .
+This is ignored by
+.Nm .
+When constructing URIs for links and redirections, the
+.Dv SCRIPT_NAME
+preprocessor constant is used instead.
+.It Ev PATH_INFO
+The final part of the URI path passed from the client to the server,
+starting after the
+.Ev SCRIPT_NAME
+and ending before the
+.Ev QUERY_STRING .
+It is used by the
+.Cm show
+page to acquire the manpath and filename it needs.
+.It Ev QUERY_STRING
+The HTTP query string passed from the client to the server.
+It is the final part of the URI, after the question mark.
+It is used by the
+.Cm search
+page to acquire the named parameters it needs.
+.El
+.Sh FILES
+.Bl -tag -width Ds
+.It Pa /var/www
+Default web server
+.Xr chroot 2
+directory.
+All the following paths are specified relative to this directory.
+.It Pa /cgi-bin/man.cgi
+The usual file system path to the
+.Nm
+program inside the web server
+.Xr chroot 2
+directory.
+A different name can be chosen, but in any case, it needs to be configured in
+.Xr httpd.conf 5 .
+.It Pa /htdocs
+The file system path to the server document root directory
+relative to the server
+.Xr chroot 2
+directory.
+This is part of the web server configuration and not specific to
+.Nm .
+.It Pa /htdocs/mandoc.css
+A style sheet for
+.Xr mandoc 1
+HTML styling, referenced from each generated HTML page.
+.It Pa /man
+Default
+.Nm
+data directory containing all the manual trees.
+Can be overridden by
+.Dv MAN_DIR .
+.It Pa /man/manpath.conf
+The list of available manpaths, one per line.
+If any of the lines in this file contains a slash
+.Pq Sq /
+or any character not contained in the
+.Sx Restricted character set ,
+.Nm
+reports an internal server error and exits without doing anything.
+.It Pa /man/header.html
+An optional file containing static HTML code to be inserted right
+after opening the <BODY> element.
+.It Pa /man/footer.html
+An optional file containing static HTML code to be inserted right
+before closing the <BODY> element.
+.It Pa /man/OpenBSD-current/man1/mandoc.1
+An example
+.Xr mdoc 7
+source file located below the
+.Dq OpenBSD-current
+manpath.
+.El
+.Sh COMPATIBILITY
+The
+.Nm
+CGI program is call-compatible with queries from the traditional
+.Pa man.cgi
+script by Wolfram Schneider.
+However, the output may not be quite the same.
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr mandoc.db 5 ,
+.Xr makewhatis 8 ,
+.Xr slowcgi 8
+.Sh HISTORY
+A version of
+.Nm
+based on
+.Xr mandoc 1
+first appeared in mdocml-1.12.1 (March 2012).
+The current
+.Xr mandoc.db 5
+database format first appeared in
+.Ox 6.1 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+program was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+and is maintained by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org ,
+who also designed and implemented the database format.

Added: vendor/mandoc/dist/man.conf.5
===================================================================
--- vendor/mandoc/dist/man.conf.5	                        (rev 0)
+++ vendor/mandoc/dist/man.conf.5	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,131 @@
+.\"	$Id: man.conf.5,v 1.4 2016/12/28 22:52:17 schwarze Exp $
+.\"
+.\" Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: December 28 2016 $
+.Dt MAN.CONF 5
+.Os
+.Sh NAME
+.Nm man.conf
+.Nd configuration file for man
+.Sh DESCRIPTION
+This is the configuration file
+for the
+.Xr man 1 ,
+.Xr apropos 1 ,
+and
+.Xr makewhatis 8
+utilities.
+Its presence, and all directives, are optional.
+.Pp
+This file is an ASCII text file.
+Leading whitespace on lines, lines starting with
+.Sq # ,
+and blank lines are ignored.
+Words are separated by whitespace.
+The first word on each line is the name of a configuration directive.
+.Pp
+The following directives are supported:
+.Bl -tag -width Ds
+.It Ic manpath Ar path
+Override the default search
+.Ar path
+for
+.Xr man 1 ,
+.Xr apropos 1 ,
+and
+.Xr makewhatis 8 .
+It can be used multiple times to specify multiple paths,
+with the order determining the manual page search order.
+.Pp
+Each path is a tree containing subdirectories
+whose names consist of the strings
+.Sq man
+and/or
+.Sq cat
+followed by the names of sections, usually single digits.
+The former are supposed to contain unformatted manual pages in
+.Xr mdoc 7
+and/or
+.Xr man 7
+format; file names should end with the name of the section
+preceded by a dot.
+The latter should contain preformatted manual pages;
+file names should end with
+.Ql .0 .
+.Pp
+Creating a
+.Xr mandoc.db 5
+database with
+.Xr makewhatis 8
+in each directory configured with
+.Ic manpath
+is recommended and necessary for
+.Xr apropos 1
+to work, but not strictly required for
+.Xr man 1 .
+.It Ic output Ar option Op Ar value
+Configure the default value of an output option.
+These directives are overridden by the
+.Fl O
+command line options of the same names.
+For details, see the
+.Xr mandoc 1
+manual.
+.Pp
+.Bl -column fragment integer "ascii, utf8" -compact
+.It Ar option   Ta Ar value Ta used by Fl T Ta purpose
+.It Ta Ta Ta
+.It Ic fragment Ta none     Ta Cm html Ta print only body
+.It Ic includes Ta string   Ta Cm html Ta path to header files
+.It Ic indent   Ta integer  Ta Cm ascii , utf8 Ta left margin
+.It Ic man      Ta string   Ta Cm html Ta path for \&Xr links
+.It Ic paper    Ta string   Ta Cm ps , pdf Ta paper size
+.It Ic style    Ta string   Ta Cm html Ta CSS file
+.It Ic width    Ta integer  Ta Cm ascii , utf8 Ta right margin
+.El
+.It Ic _whatdb Ar path Ns Cm /whatis.db
+This directive provides the same functionality as
+.Ic manpath ,
+but using a historic and misleading syntax.
+It is kept for backward compatibility for now,
+but will eventually be removed.
+.El
+.Sh FILES
+.Pa /etc/man.conf
+.Sh EXAMPLES
+The following configuration file reproduces the defaults:
+installing it is equivalent to not having a
+.Nm
+file at all.
+.Bd -literal -offset indent
+manpath /usr/share/man
+manpath /usr/X11R6/man
+manpath /usr/local/man
+.Ed
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr man 1 ,
+.Xr makewhatis 8
+.Sh HISTORY
+A relatively complicated
+.Nm
+file format first appeared in
+.Bx 4.3 Reno .
+For
+.Ox 5.8 ,
+it was redesigned from scratch, aiming for simplicity.
+.Sh AUTHORS
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org

Added: vendor/mandoc/dist/man.h
===================================================================
--- vendor/mandoc/dist/man.h	                        (rev 0)
+++ vendor/mandoc/dist/man.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+/*	$Id: man.h,v 1.78 2017/04/24 23:06:18 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct	roff_man;
+
+const struct mparse	*man_mparse(const struct roff_man *);
+void			 man_validate(struct roff_man *);

Added: vendor/mandoc/dist/man.options.1
===================================================================
--- vendor/mandoc/dist/man.options.1	                        (rev 0)
+++ vendor/mandoc/dist/man.options.1	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1332 @@
+.\"	$Id: man.options.1,v 1.7 2017/07/04 23:40:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 4 2017 $
+.Dt MAN.OPTIONS 1
+.Os
+.Sh NAME
+.Nm man.options
+.Nd assignment of option letters in manual page utilities
+.\"
+.\" Sources that occur repeatedly.
+.\" Only use if the precise implementation time is unknown.
+.\"
+.de PWB
+.No PWB/UNIX 1.0 Pq July 1, 1977 \\$1
+..
+.de At7
+.At v7 Pq January 1979 \\$1
+..
+.de At3
+.At III Pq June 1980 \\$1
+..
+.de Bx4
+.Bx 4 Pq November 16, 1980 \\$1
+..
+.de At5
+.At V Pq January 1983 \\$1
+..
+.de Bx43
+.Bx 4.3 Pq June 1986 \\$1
+..
+.\" option was present in groff-1.01 as contained in 4.3BSD-Net/2
+.\" and no mention of it could be found in the ChangeLog,
+.\" so it's probably older than groff-0.4, where the log started
+.de g04
+.No probably before groff-0.4 Pq before July 14, 1990 \\$1
+..
+.de Eaton
+.No Eaton Pq before July 7, 1993; 1990/91? \\$1
+..
+.\" man-1.5e was released on July 11, 1998.
+.de man15e
+.No man-1.5e Pq not before 1993, not after 1998 \\$1
+..
+.\" man-1.5g was released on April 7, 1999.
+.de man15g
+.No man-1.5g Pq not before 1993, not after 1999 \\$1
+..
+.\" code first seen in the initial import of man-db into CVS ,
+.\" which was more or less debian man-db-2.3.17
+.\" Colin Watson's first release was 2.3.18 on May 14, 2001
+.\" no clue about it found in ChangeLog-2013,
+.\" so it was probably already present before man-db-2.2a4
+.de dbI
+.No man-db probably before 2.2a4 Pq before Nov 8, 1994 \\$1
+..
+.\"
+.\" --------------------------------------------------------------------
+.\"
+.Sh DESCRIPTION
+This manual page lists option letters used in many different versions
+of the
+.Nm man ,
+.Nm apropos ,
+.Nm whatis ,
+.Nm mandoc ,
+.Nm makewhatis ,
+.Nm mandb ,
+.Nm makemandb ,
+.Nm catman ,
+and
+.Nm manpath
+utilities.
+Option letters used by
+.Nm groff ,
+.Nm nroff ,
+.Nm troff ,
+and
+.Nm roff
+are also included because beginning with
+.At v7 ,
+many versions of
+.Xr man 1
+pass on unrecognized options to these programs.
+.Pp
+For each option letter, information is first grouped into paragraphs,
+each paragraph describing similar functionality and starting with
+one line briefly summarizing that functionality.
+.Pp
+For each program using the letter for that functionality, one line
+is provided, giving the name of the program, a colon, the system
+where this letter first appeared for this functionality in this
+program, optionally a comma and a list of other system versions
+introducing the same, a semicolon, and a list of current systems
+supporting it.
+If a system appears before the semicolon, it is not repeated
+afterwards.
+.Pp
+Entries are sorted by historical precedence, except that obsolete
+options are moved to the end.
+Dates are commit dates where known, and release dates otherwise.
+.Bl -tag -width 3n
+.It Fl a
+display all matching manual pages
+.br
+.Nm man :
+.Bx 4.3 Tahoe Pq June 1988 ,
+.Eaton ;
+.Ox , Fx , Nx , No man-db , man-1.6 , illumos , Solaris 9-11
+.br
+.Nm apropos , whatis , mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+only display items that match all keywords
+.br
+.Nm apropos :
+.No man-db Pq Aug 29, 2007
+.Pp
+use all directories and files for
+.Xr mandoc.db 5
+.br
+.Nm makewhatis :
+.Ox 5.6 Pq April 18, 2014
+.Pp
+.Bq superseded by Fl T Cm ascii
+ASCII output mode
+.br
+.Nm troff :
+.At7
+.br
+.Nm groff :
+.g04
+.It Fl B
+use specified browser
+.br
+.Nm man :
+.No man-1.6 Pq June 24, 2005
+.It Fl b
+print a backtrace with each warning or error message
+.br
+.Nm groff :
+.g04
+.Pp
+.Bq obsolete hardware
+report whether the phototypesetter is busy
+.br
+.Nm troff :
+.At7
+.It Fl C
+alternate configuration file
+.br
+.Nm apropos , whatis :
+.Bx 4.4 Lite1 Pq April 22, 1994 ,
+.No man-db Pq Feb 22, 2003 ;
+.Ox , Nx
+.br
+.Nm man :
+.Nx 1.0 Pq Oct 26, 1994 ,
+.man15e ;
+.Ox
+.br
+.Nm mandb , catman , manpath :
+.No man-db Pq Feb 22, 2003
+.br
+.Nm makemandb :
+.Nx Pq Feb 7, 2012
+.br
+.Nm makewhatis :
+.Ox 5.6 Pq April 18, 2014
+.br
+.Nm mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+.Bq obsolete
+enable compatibility mode
+.br
+.Nm groff :
+.No before groff-0.5 Pq before August 3, 1990
+.It Fl c
+do not use a pager
+.br
+.Nm man :
+.Bx 4.3 Reno Pq June 1990 ;
+.Ox , Nx
+.br
+.Nm apropos , whatis , mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+process given catpath
+.br
+.Nm makewhatis :
+.Pq not before 1992, not after 1995
+.Pp
+recreate databases from scratch
+.br
+.Nm mandb :
+.dbI
+.Pp
+produce a catpath as opposed to a manpath
+.br
+.Nm manpath :
+.dbI
+.Pp
+internal option for use by
+.Xr catman 1
+.br
+.Nm man :
+.dbI
+.Pp
+reformat source page even if cat page exists
+.br
+.Nm man :
+.man15e
+.Pp
+disable terminal color output in
+.Xr grotty 1
+.br
+.Nm groff :
+.No groff-1.18.0 Pq Oct 4, 2001
+.Pp
+recreate nroff versions from SGML sources
+.br
+.Nm catman :
+.No Solaris 9-11
+.Pp
+.Bq obsolete
+postprocess with
+.Xr col 1
+.br
+.Nm man :
+.At3 ,
+.At5
+.It Fl D
+reset whatever was set with
+.Ev MANOPT
+.br
+.Nm man :
+.dbI
+.Pp
+print debugging info in addition to manual page
+.br
+.Nm man :
+.man15e
+.Pp
+set default input encoding for
+.Xr preconv 1
+.br
+.Nm groff :
+.No groff-1.20 Pq August 20, 2008
+.Pp
+display all files added to
+.Xr mandoc.db 5
+.br
+.Nm makewhatis :
+.Ox 5.6 Pq April 18, 2014
+.It Fl d
+define a user-defined string
+.br
+.Nm groff :
+.g04
+.Pp
+print debugging information
+.br
+.Nm man :
+.Eaton ;
+.Fx , No man-db , man-1.6 , illumos , Solaris 9-11
+.br
+.Nm manpath :
+.Eaton ;
+.Fx , No man-db
+.br
+.Nm apropos , whatis :
+.dbI ;
+.Fx
+.br
+.Nm mandb , catman :
+.dbI
+.Pp
+remove and re-add a file to
+.Xr mandoc.db 5
+.br
+.Nm makewhatis :
+.Ox 2.7 Pq Feb 3, 2000
+.Pp
+.Bq superseded by Fl l
+interpret arguments as file names
+.br
+.Nm man :
+.At3 ,
+.At5
+.It Fl E
+inhibit all error messages
+.br
+.Nm groff :
+.g04
+.Pp
+select output encoding
+.br
+.Nm man :
+.No man-db Pq Dec 23, 2001
+.It Fl e
+preprocess with
+.Xr eqn 7
+.br
+.Nm man :
+.At7
+.br
+.Nm groff :
+.g04
+.Pp
+adjust text to left and right margins
+.br
+.Nm nroff :
+.At7
+.Pp
+use exact matching
+.br
+.Nm apropos , whatis :
+.dbI
+.Pp
+restrict search by section extension
+.br
+.Nm man :
+.No man-db-2.3.5 Pq April 21, 1995
+.It Fl F
+use alternate font directory
+.br
+.Nm troff :
+.Bx 4.2 Pq September 1983
+.br
+.Nm groff :
+.g04
+.Pp
+preformat only, do not display
+.br
+.Nm man :
+.No man-1.5g Pq April 7, 1999
+.Pp
+force searching dirs, do not use index (default)
+.br
+.Nm man :
+.No illumos , Solaris 9-11
+.It Fl f
+.Xr whatis 1
+mode
+.br
+.Nm man :
+.Bx4 ,
+.Eaton ;
+.Ox , Fx , No man-db , man-1.6
+.br
+.Nm apropos , whatis :
+.No man-db Pq Dec 2, 2010 ,
+.Ox 5.7 Pq August 27, 2014
+.br
+.Nm mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+set the default font family
+.br
+.Nm groff :
+.g04
+.Pp
+force formatting even if cat page is newer
+.br
+.Nm catman :
+.Fx Pq March 15, 1995
+.Pp
+update only the entries for the given file
+.br
+.Nm mandb :
+.No man-db Pq Feb 21, 2003
+.Pp
+force rebuilding the database from scratch
+.br
+.Nm makemandb :
+.Nx Pq Feb 7, 2012
+.Pp
+locate manual page related to given file name
+.br
+.Nm man :
+.No illumos , Solaris 9-11
+.Pp
+.Bq obsolete hardware
+do not feed out paper nor stop phototypesetter
+.br
+.Nm troff :
+.At7
+.It Fl G
+preprocess with
+.Xr grap 1
+.br
+.Nm groff :
+.No groff-1.16 Pq May 1, 2000
+.It Fl g
+produce a global manpath
+.br
+.Nm manpath :
+.No man-db-2.2a7 Pq Nov 16, 1994
+.Pp
+preprocess with
+.Xr grn 1
+.br
+.Nm groff :
+.No groff-1.16 Pq Feb 20, 2000
+.Pp
+.Bq obsolete hardware
+output to a GCOS phototypesetter
+.br
+.Nm troff :
+.At7
+.Pp
+.Bq obsolete hardware
+output to a DASI 300 terminal in 12-pitch mode
+.br
+.Nm man :
+.PWB
+.It Fl H
+read hyphenation patterns from the given file
+.br
+.Nm groff :
+.g04
+.Pp
+produce HTML output
+.br
+.Nm man :
+.No man-db-1.3.12 to 1.3.17 Pq not before 1996, not after 2001
+.Pp
+use program to render HTML files as text
+.br
+.Nm man :
+.No man-1.6 Pq June 24, 2005
+.It Fl h
+print a help message and exit
+.br
+.Nm groff :
+.g04
+.br
+.Nm man :
+.Eaton ;
+.Fx , No man-db , man-1.6
+.br
+.Nm manpath :
+.Eaton ;
+.Fx , No man-db
+.br
+.Nm apropos , whatis , mandb , catman :
+.dbI
+.Pp
+display the SYNOPSIS lines only
+.br
+.Nm man :
+.Bx 4.3 Net/2 Pq August 20, 1991 ;
+.Ox , Nx
+.br
+.Nm apropos , whatis , mandoc :
+.Ox 5.7 Pq Sep 3, 2014
+.Pp
+turn on HTML formatting
+.br
+.Nm apropos :
+.Nx Pq Apr 2, 2013
+.Pp
+.Bq obsolete
+replace spaces by tabs in the output
+.br
+.Nm roff , nroff :
+.At7
+.It Fl I
+input file search path for
+.Xr soelim 1
+.br
+.Nm groff :
+.No groff-1.12 Pq Sep 11, 1999
+.Pp
+respect case when matching manual page names
+.br
+.Nm man , catman :
+.No man-db Pq Apr 21, 2002
+.Pp
+input options, in particular default operating system name
+.br
+.Nm mandoc :
+.Ox 5.2 Pq May 24, 2012
+.br
+.Nm man , apropos , whatis :
+.Ox 5.7 Pq August 27, 2014
+.It Fl i
+read standard input after the input files are exhausted
+.br
+.Nm nroff , troff :
+.At7
+.br
+.Nm groff :
+.g04
+.Pp
+ignore case when matching manual page names
+.br
+.Nm man , catman :
+.No man-db Pq Apr 21, 2002
+.Pp
+turn on terminal escape code formatting
+.br
+.Nm apropos :
+.Nx Pq March 29, 2013
+.It Fl J
+preprocess with
+.Xr gideal 1
+.br
+.Nm groff :
+.No groff-1.22.3 Pq June 17, 2014
+.It Fl j
+preprocess with
+.Xr chem 1
+.br
+.Nm groff :
+.No groff-1.22 Pq Jan 22, 2011
+.It Fl K
+source code full text search
+.br
+.Nm man :
+.man15e ,
+.No man-db Pq June 28, 2009 ;
+.No Solaris 11
+.Pp
+input encoding
+.br
+.Nm groff :
+.No groff-1.20 Pq Dec 31, 2005
+.br
+.Nm man , apropos , whatis , mandoc :
+.Ox 5.7 Pq Oct 30, 2014
+.It Fl k
+.Xr apropos 1
+mode
+.br
+.Nm man :
+.Bx4 ,
+.Eaton ;
+.No POSIX , Ox , Fx , Nx , No man-db , man-1.6 , illumos , Solaris 9-11
+.br
+.Nm apropos , whatis , mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+ignore formatting errors
+.br
+.Nm catman :
+.Nx Pq April 26, 1994
+.Pp
+preprocess with
+.Xr preconv 1
+.br
+.Nm groff :
+.No groff-1.20 Pq Dec 31, 2005
+.Pp
+.Bq obsolete hardware
+display on a Tektronix 4014 terminal
+.br
+.Nm man :
+.At7
+.It Fl L
+pass argument to the spooler
+.br
+.Nm groff :
+.No groff-0.6 Pq Sep 14, 1990
+.Pp
+use alternate
+.Xr locale 1
+.br
+.Nm man , apropos , whatis :
+.No before man-db-2.2a13 Pq before Dec 15, 1994
+.Pp
+print list of locales
+.br
+.Nm manpath :
+.Fx Pq Nov 23, 1999
+.Pp
+use
+.Xr locale 1
+specified in the environment
+.br
+.Nm catman :
+.Fx Pq May 18, 2002
+.It Fl l
+spool the output
+.br
+.Nm groff :
+.g04
+.Pp
+interpret arguments as file names
+.br
+.Nm man :
+.No before man-2.2a7 Pq before Nov 16, 1994 ,
+.Ox 5.7 Pq Aug 30, 2014
+.br
+.Nm apropos , whatis , mandoc :
+.Ox 5.7 Pq Aug 30, 2014
+.Pp
+do not trim output to the terminal width
+.br
+.Nm apropos , whatis :
+.No man-db Pq Aug 19, 2007
+.Pp
+only parse NAME sections
+.br
+.Nm makemandb :
+.Nx Pq Feb 7, 2012
+.Pp
+legacy mode: search Nm,Nd, no context or formatting
+.br
+.Nm apropos :
+.Nx Pq March 29, 2013
+.Pp
+list all manual pages matching name within the search path
+.br
+.Nm man :
+.No illumos , Solaris 9-11
+.It Fl M
+override manual page search path
+.br
+.Nm man :
+.Bx43 ,
+.Eaton ;
+.Ox , Fx , Nx , No man-db , man-1.6 , illumos , Solaris 9-11
+.br
+.Nm apropos , whatis :
+.Bx43 ,
+.No before man-db-2.2a14 Pq before Dec 16, 1994 ;
+.Ox , No illumos
+.br
+.Nm catman :
+.dbI ;
+.Nx Pq July 27, 1993 ,
+.No Solaris 9-11
+.br
+.Nm mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+prepend to macro file search path
+.br
+.Nm groff :
+.g04
+.Pp
+do not show the context of the match
+.br
+.Nm apropos :
+.Nx Pq May 22, 2016
+.It Fl m
+specify input macro language
+.br
+.Nm nroff , troff :
+.At7
+.br
+.Nm groff :
+.g04
+.br
+.Nm mandoc :
+.Ox 4.8 Pq April 6, 2009
+.Pp
+augment manual page search path
+.br
+.Nm man , apropos , whatis :
+.Bx 4.3 Reno Pq June 1990 ;
+.Ox , Nx
+.br
+.Nm catman :
+.Nx Pq Apr 4, 1999
+.br
+.Nm mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+override operating system
+.br
+.Nm man :
+.Eaton ;
+.No man-db , man-1.6
+.br
+.Nm apropos , whatis , manpath :
+.dbI
+.Pp
+override architecture
+.br
+.Nm man :
+.Fx Pq Jan 11, 2002
+.Pp
+show the context of the match
+.br
+.Nm apropos :
+.Nx Pq May 22, 2016
+.It Fl N
+do not allow newlines between
+.Xr eqn 7
+delimiters
+.br
+.Nm groff :
+.No groff-1.01 Pq Feb 21, 1991
+.It Fl n
+specify a page number for the first page
+.br
+.Nm troff :
+.At7
+.br
+.Nm groff :
+.g04
+.Pp
+.Xr nroff 1
+output mode
+.br
+.Nm man :
+.At7
+.Pp
+do not create the
+.Xr whatis 1
+database
+.br
+.Nm catman :
+.Nx Pq July 27, 1993
+.Pp
+print commands instead of executing them
+.br
+.Nm catman :
+.Fx Pq May 18, 2002 ,
+.No Solaris 9-11
+.Pp
+limit the number of results
+.br
+.Nm apropos :
+.Nx Pq Feb 7, 2012
+.Pp
+dry run simulating
+.Xr mandoc.db 5
+creation
+.br
+.Nm makewhatis :
+.Ox 5.6 Pq April 18, 2014
+.It Fl O
+output options
+.br
+.Nm mandoc :
+.Ox 4.8 Pq Oct 27, 2009
+.br
+.Nm man , apropos , whatis :
+.Ox 5.7 Pq August 27, 2014
+.It Fl o
+select pages by numbers
+.br
+.Nm nroff , troff :
+.At7
+.br
+.Nm groff :
+.g04
+.Pp
+force use of non-localized manual pages
+.br
+.Nm man :
+.Fx Pq June 7, 1999
+.Pp
+optimize index for speed and disk space
+.br
+.Nm makemandb :
+.Nx Pq Feb 7, 2012
+.It Fl P
+pass argument to postprocessor
+.br
+.Nm groff :
+.No groff-0.6 Pq Sep 14, 1990
+.Pp
+use specified pager
+.br
+.Nm man :
+.Eaton ;
+.Fx , No man-db , man-1.6
+.Pp
+turn on pager formatting
+.br
+.Nm apropos :
+.Nx Pq Apr 2, 2013
+.It Fl p
+preprocess with
+.Xr pic 1
+.br
+.Nm groff :
+.g04
+.Pp
+use the given list of preprocessors
+.br
+.Nm man :
+.Eaton ;
+.Fx , No man-db , man-1.6
+.Pp
+dry run, display commands instead of executing them
+.br
+.Nm catman :
+.Nx Pq July 27, 1993 ,
+.Fx Pq March 15, 1995 to May 18, 2002 ,
+.No Solaris 9-11
+.Pp
+print warnings when building
+.Xr mandoc.db 5
+.br
+.Nm makewhatis :
+.Ox 2.7 Pq April 23, 2000
+.Pp
+do not look for deleted manual pages
+.br
+.Nm mandb :
+.No man-db Pq June 28, 2001
+.Pp
+print the search path for manual pages
+.br
+.Nm man :
+.Nx Pq June 14 , 2011
+.Pp
+turn on pager formatting and pipe through pager
+.br
+.Nm apropos :
+.Nx Pq Feb 7, 2012
+.Pp
+.Bq obsolete hardware
+set phototypesetter point size
+.br
+.Nm troff :
+.At7
+.It Fl Q
+print only fatal error messages
+.br
+.Nm makemandb :
+.Nx Pq Aug 29, 2012
+.Pp
+quick mode of
+.Xr mandoc.db 5
+creation
+.br
+.Nm makewhatis :
+.Ox 5.6 Pq April 18, 2014
+.It Fl q
+invoke the simultaneous input-output mode of the .rd request
+.br
+.Nm nroff , troff :
+.At7
+.Pp
+issue no warnings
+.br
+.Nm manpath :
+.Eaton ;
+.Fx , No man-db
+.br
+.Nm mandb :
+.dbI
+.Pp
+print only warnings and errors, no status updates
+.br
+.Nm makemandb :
+.Nx Pq Aug 29, 2012
+.It Fl R
+postprocess with
+.Xr refer 1
+.br
+.Nm groff :
+.No groff-1.02 Pq June 2, 1991
+.Pp
+recode to the specified encoding
+.br
+.Nm man :
+.No man-db Pq Dec 31, 2007
+.It Fl r
+set number register
+.br
+.Nm nroff , troff :
+.At7
+.br
+.Nm groff :
+.g04
+.Pp
+scan for and remove junk files
+.br
+.Nm catman :
+.Fx Pq March 31, 1995
+.Pp
+set
+.Xr less 1
+prompt
+.br
+.Nm man :
+.No man-db-2.3.5 Pq April 21, 1995
+.Pp
+use regular expression matching
+.br
+.Nm apropos , whatis :
+.No man-db-2.3.5 Pq April 21, 1995
+.Pp
+turn off formatting
+.br
+.Nm apropos :
+.Nx Pq Feb 10, 2013
+.Pp
+check for formatting errors, do not display
+.br
+.Nm man :
+.No illumos , Solaris 9-11
+.It Fl S
+manual section search list
+.br
+.Nm man :
+.Eaton ;
+.Fx , No man-db , man-1.6
+.Pp
+safer mode
+.br
+.Nm groff :
+.No groff-1.10 Pq May 17, 1994
+.Pp
+restrict architecture
+.br
+.Nm man :
+.Ox 2.3 Pq March 9, 1998 ,
+.Nx Pq May 27, 2000
+.br
+.Nm apropos :
+.Ox 4.5 Pq Dec 24, 2008 ,
+.Nx Pq May 8, 2009
+.br
+.Nm whatis :
+.Ox 5.6 Pq April 18, 2014
+.br
+.Nm mandoc :
+.Ox 5.7 Pq August 27, 2014
+.It Fl s
+preprocess with
+.Xr soelim 1
+.br
+.Nm groff :
+.g04
+.Pp
+silent mode, do not echo commands
+.br
+.Nm catman :
+.Nx Pq April 26, 1994
+.Pp
+restrict section
+.br
+.Nm makewhatis :
+.man15g
+.br
+.Nm man :
+.Ox 2.3 Pq March 9, 1998 ,
+.Nx Pq June 12, 2000 ;
+.No illumos , Solaris 9-11
+.br
+.Nm apropos :
+.No man-db Pq Nov 16, 2003 ,
+.Ox 4.5 Pq Dec 24, 2008 ,
+.Nx Pq May 8, 2009 ;
+.No illumos
+.br
+.Nm whatis :
+.No man-db Pq Nov 16, 2003 ,
+.Ox 5.6 Pq April 18, 2014 ;
+.No illumos
+.br
+.Nm mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+do not look for stray cats
+.br
+.Nm mandb :
+.dbI
+.Pp
+.Bq SysV compat, recommends Fl S
+manual section search list
+.br
+.Nm man :
+.No man-db Pq Jan 1, 2008
+.Pp
+.Bq superseded by Fl h
+display the SYNOPSIS lines only
+.br
+.Nm man :
+.PWB
+.Pp
+.Bq obsolete hardware
+pause before each page for paper manipulation
+.br
+.Nm roff :
+.At7
+.Pp
+.Bq obsolete hardware
+.Xr troff 1
+output mode, small format
+.br
+.Nm man :
+.At3 ,
+.At5
+.It Fl T
+select terminal output format
+.br
+.Nm nroff :
+.At7
+.br
+.Nm man :
+.At3 ,
+.At5 ,
+.dbI ,
+.Ox 5.7 Pq August 27, 2014
+.br
+.Nm groff :
+.g04
+.br
+.Nm mandoc :
+.Ox 4.8 Pq April 6, 2009
+.br
+.Nm apropos , whatis :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+use UTF-8 for
+.Xr mandoc.db 5
+.br
+.Nm makewhatis :
+.Ox 5.6 Pq April 18, 2014
+.Pp
+.Bq superseded by Fl m
+use other macro package
+.br
+.Nm man , catman :
+.No Solaris 9-11
+.It Fl t
+.Xr troff 1
+output mode
+.br
+.Nm man :
+.PWB ,
+.At7 ,
+.Bx 2 Pq May 10, 1979 ,
+.At3 ,
+.At5 ,
+.Eaton ;
+.Fx , No man-db , man-1.6 , illumos , Solaris 9-11
+.br
+.Nm catman :
+.No Solaris 9-11
+.Pp
+preprocess with
+.Xr tbl 7
+.br
+.Nm groff :
+.g04
+.Pp
+check manual pages in the hierarchy
+.br
+.Nm mandb :
+.No man-db-1.3.12 to 1.3.17 Pq not before 1996, not after 2001
+.Pp
+check files for problems related to
+.Xr mandoc.db 5
+.br
+.Nm makewhatis :
+.Ox 2.7 Pq April 23, 2000
+.It Fl U
+unsafe mode
+.br
+.Nm groff :
+.No groff-1.12 Pq Dec 13, 1999
+.It Fl u
+update database
+.br
+.Nm makewhatis :
+.Pq not before 1992, not after 1995
+.Pp
+create user databases only
+.br
+.Nm mandb :
+.dbI
+.Pp
+update database cache (requires suid)
+.br
+.Nm man :
+.No before man-db-2.2a10 Pq before Dec 6, 1994
+.Pp
+remove files from
+.Xr mandoc.db 5
+.br
+.Nm makewhatis :
+.Ox 3.4 Pq July 9, 2003
+.It Fl V
+print the pipeline on stdout instead of executing it
+.br
+.Nm groff :
+.No groff-0.6 Pq Sep 2, 1990
+.Pp
+print version information
+.br
+.Nm man , apropos , whatis , mandb , catman , manpath :
+.dbI
+.It Fl v
+print version number
+.br
+.Nm groff :
+.g04
+.Pp
+verbose mode
+.br
+.Nm catman :
+.Fx Pq March 15, 1995
+.br
+.Nm makewhatis :
+.man15g
+.br
+.Nm apropos , whatis :
+.No man-db Pq Dec 29, 2002
+.Pp
+print the name of every parsed file
+.br
+.Nm makemandb :
+.Nx Pq Feb 7, 2012
+.Pp
+.Bq obsolete hardware
+produce output on the Versatec printer
+.br
+.Nm man :
+.PWB
+.It Fl W
+disable the named warning
+.br
+.Nm groff :
+.No groff-0.5 Pq August 14, 1990
+.Pp
+list pathnames without additional information
+.br
+.Nm man :
+.man15e
+.Pp
+list pathnames of cat files
+.br
+.Nm man :
+.No man-db Pq Aug 13, 2002
+.Pp
+minimum message level to display
+.br
+.Nm mandoc :
+.Ox 4.8 Pq April 6, 2009
+.br
+.Nm man , apropos , whatis :
+.Ox 5.7 Pq August 27, 2014
+.It Fl w
+list pathnames
+.br
+.Nm man :
+.At7 ,
+.At3 ,
+.At5 ,
+.Eaton ;
+.Ox , Fx , Nx , No man-db , man-1.6
+.br
+.Nm apropos , whatis , mandoc :
+.Ox 5.7 Pq August 27, 2014
+.Pp
+enable the named warning
+.br
+.Nm groff :
+.No groff-0.5 Pq August 14, 1990
+.Pp
+only create the
+.Xr whatis 1
+database
+.br
+.Nm catman :
+.Nx Pq July 27, 1993 ,
+.No Solaris 9-11
+.Pp
+use wildcard matching
+.br
+.Nm apropos , whatis :
+.No man-db-2.3.5 Pq April 21, 1995
+.Pp
+use manpath obtained from man --path
+.br
+.Nm makewhatis :
+.man15g
+.Pp
+update the
+.Xr whatis 1
+database
+.br
+.Nm man :
+.No illumos
+.Pp
+.Bq obsolete hardware
+wait until the phototypesetter is available
+.br
+.Nm troff :
+.At7
+.It Fl X
+display with
+.Xr gxditview 1
+.br
+.Nm groff :
+.No groff-1.06 Pq Sep 1, 1992
+.br
+.Nm man :
+.dbI
+.It Fl y
+use the non-compacted version of the macros
+.br
+.Nm man :
+.At3 ,
+.At5
+.It Fl Z
+do not run preprocessors
+.br
+.Nm groff :
+.g04
+.br
+.Nm man :
+.No man-db-2.2a5 Pq Nov 10, 1994
+.It Fl z
+suppress formatted output from
+.Xr troff 1 ,
+print only error messages
+.br
+.Nm groff :
+.g04
+.It Fl 7
+ASCII output mode
+.br
+.Nm man :
+.No man-db-2.3.5 Pq April 21, 1995
+.It Fl \&?
+print a help message and exit
+.br
+.Nm groff :
+.g04
+.br
+.Nm man , manpath :
+.Eaton ;
+.Fx , No man-db
+.br
+.Nm apropos , whatis , mandb , catman :
+.dbI
+.El
+.Pp
+Multi-letter options:
+.Bl -tag -width Ds
+.It Fl hp
+.Bq obsolete hardware
+output to a Hewlett Packard terminal
+.br
+.Nm man :
+.PWB
+.It Fl 12
+.Bq obsolete hardware
+use 12-pitch for certain terminals
+.br
+.Nm man :
+.At3 ,
+.At5
+.It Fl 450
+.Bq obsolete hardware
+output to a DASI 450 terminal
+.br
+.Nm man :
+.PWB
+.El
+.Pp
+In
+.At v3 ,
+.Xr man 1
+had no options.
+.br
+The syntax was:
+.Sy man Ar name Op Ar section
+.Pp
+In
+.At v4 ,
+.br
+the syntax changed to:
+.Sy man Oo Ar section Oc Op Ar name ...
+.Sh AUTHORS
+This information was assembled by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org
+using
+.Bl -bullet -compact
+.It
+the Unix Archive of the Unix Heritage Society
+.It
+the CSRG Archive CD-ROMs
+.It
+the
+.Fx
+SVN repository
+.It
+the
+.Ox
+CVS repository
+.It
+the
+.Nx
+CVS repository
+.It
+the GNU roff (groff) git repository
+.It
+the 4.3BSD-Net/2 groff CHANGES file (Oct 1990 to March 1991)
+.It
+the 4.3BSD-Net/2 groff ChangeLog file (July 1990 to March 1991)
+.It
+the man-db CVS and git repositories (since April 2001)
+.It
+the man-db NEWS file (April 1995 to Dec 2016)
+.It
+the man-db ChangeLog-2013 file (Nov 1994 to Dec 2013)
+.It
+release tarballs man-1.5g (July 1998) to man-1.5p (Jan 2005),
+man-1.6 (June 2005), and man-1.6a to man-1.6g (Dec 2010)
+.It
+a makewhatis release tarball without version number from 1995
+.It
+the illumos manual pages on the WWW
+.It
+and Solaris 11, SunOS 5.10, and SunOS 5.9 machines at opencsw.org.
+.El

Added: vendor/mandoc/dist/man_html.c
===================================================================
--- vendor/mandoc/dist/man_html.c	                        (rev 0)
+++ vendor/mandoc/dist/man_html.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,670 @@
+/*	$Id: man_html.c,v 1.145 2017/06/25 11:42:02 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "man.h"
+#include "out.h"
+#include "html.h"
+#include "main.h"
+
+/* FIXME: have PD set the default vspace width. */
+
+#define	INDENT		  5
+
+#define	MAN_ARGS	  const struct roff_meta *man, \
+			  const struct roff_node *n, \
+			  struct html *h
+
+struct	htmlman {
+	int		(*pre)(MAN_ARGS);
+	int		(*post)(MAN_ARGS);
+};
+
+static	void		  print_bvspace(struct html *,
+				const struct roff_node *);
+static	void		  print_man_head(MAN_ARGS);
+static	void		  print_man_nodelist(MAN_ARGS);
+static	void		  print_man_node(MAN_ARGS);
+static	int		  fillmode(struct html *, int);
+static	int		  a2width(const struct roff_node *,
+				struct roffsu *);
+static	int		  man_B_pre(MAN_ARGS);
+static	int		  man_HP_pre(MAN_ARGS);
+static	int		  man_IP_pre(MAN_ARGS);
+static	int		  man_I_pre(MAN_ARGS);
+static	int		  man_OP_pre(MAN_ARGS);
+static	int		  man_PP_pre(MAN_ARGS);
+static	int		  man_RS_pre(MAN_ARGS);
+static	int		  man_SH_pre(MAN_ARGS);
+static	int		  man_SM_pre(MAN_ARGS);
+static	int		  man_SS_pre(MAN_ARGS);
+static	int		  man_UR_pre(MAN_ARGS);
+static	int		  man_alt_pre(MAN_ARGS);
+static	int		  man_ign_pre(MAN_ARGS);
+static	int		  man_in_pre(MAN_ARGS);
+static	void		  man_root_post(MAN_ARGS);
+static	void		  man_root_pre(MAN_ARGS);
+
+static	const struct htmlman __mans[MAN_MAX - MAN_TH] = {
+	{ NULL, NULL }, /* TH */
+	{ man_SH_pre, NULL }, /* SH */
+	{ man_SS_pre, NULL }, /* SS */
+	{ man_IP_pre, NULL }, /* TP */
+	{ man_PP_pre, NULL }, /* LP */
+	{ man_PP_pre, NULL }, /* PP */
+	{ man_PP_pre, NULL }, /* P */
+	{ man_IP_pre, NULL }, /* IP */
+	{ man_HP_pre, NULL }, /* HP */
+	{ man_SM_pre, NULL }, /* SM */
+	{ man_SM_pre, NULL }, /* SB */
+	{ man_alt_pre, NULL }, /* BI */
+	{ man_alt_pre, NULL }, /* IB */
+	{ man_alt_pre, NULL }, /* BR */
+	{ man_alt_pre, NULL }, /* RB */
+	{ NULL, NULL }, /* R */
+	{ man_B_pre, NULL }, /* B */
+	{ man_I_pre, NULL }, /* I */
+	{ man_alt_pre, NULL }, /* IR */
+	{ man_alt_pre, NULL }, /* RI */
+	{ NULL, NULL }, /* nf */
+	{ NULL, NULL }, /* fi */
+	{ NULL, NULL }, /* RE */
+	{ man_RS_pre, NULL }, /* RS */
+	{ man_ign_pre, NULL }, /* DT */
+	{ man_ign_pre, NULL }, /* UC */
+	{ man_ign_pre, NULL }, /* PD */
+	{ man_ign_pre, NULL }, /* AT */
+	{ man_in_pre, NULL }, /* in */
+	{ man_OP_pre, NULL }, /* OP */
+	{ NULL, NULL }, /* EX */
+	{ NULL, NULL }, /* EE */
+	{ man_UR_pre, NULL }, /* UR */
+	{ NULL, NULL }, /* UE */
+	{ man_UR_pre, NULL }, /* MT */
+	{ NULL, NULL }, /* ME */
+};
+static	const struct htmlman *const mans = __mans - MAN_TH;
+
+
+/*
+ * Printing leading vertical space before a block.
+ * This is used for the paragraph macros.
+ * The rules are pretty simple, since there's very little nesting going
+ * on here.  Basically, if we're the first within another block (SS/SH),
+ * then don't emit vertical space.  If we are (RS), then do.  If not the
+ * first, print it.
+ */
+static void
+print_bvspace(struct html *h, const struct roff_node *n)
+{
+
+	if (n->body && n->body->child)
+		if (n->body->child->type == ROFFT_TBL)
+			return;
+
+	if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)
+		if (NULL == n->prev)
+			return;
+
+	print_paragraph(h);
+}
+
+void
+html_man(void *arg, const struct roff_man *man)
+{
+	struct html	*h;
+	struct tag	*t;
+
+	h = (struct html *)arg;
+
+	if ((h->oflags & HTML_FRAGMENT) == 0) {
+		print_gen_decls(h);
+		print_otag(h, TAG_HTML, "");
+		t = print_otag(h, TAG_HEAD, "");
+		print_man_head(&man->meta, man->first, h);
+		print_tagq(h, t);
+		print_otag(h, TAG_BODY, "");
+	}
+
+	man_root_pre(&man->meta, man->first, h);
+	t = print_otag(h, TAG_DIV, "c", "manual-text");
+	print_man_nodelist(&man->meta, man->first->child, h);
+	print_tagq(h, t);
+	man_root_post(&man->meta, man->first, h);
+	print_tagq(h, NULL);
+}
+
+static void
+print_man_head(MAN_ARGS)
+{
+	char	*cp;
+
+	print_gen_head(h);
+	mandoc_asprintf(&cp, "%s(%s)", man->title, man->msec);
+	print_otag(h, TAG_TITLE, "");
+	print_text(h, cp);
+	free(cp);
+}
+
+static void
+print_man_nodelist(MAN_ARGS)
+{
+
+	while (n != NULL) {
+		print_man_node(man, n, h);
+		n = n->next;
+	}
+}
+
+static void
+print_man_node(MAN_ARGS)
+{
+	static int	 want_fillmode = MAN_fi;
+	static int	 save_fillmode;
+
+	struct tag	*t;
+	int		 child;
+
+	/*
+	 * Handle fill mode switch requests up front,
+	 * they would just cause trouble in the subsequent code.
+	 */
+
+	switch (n->tok) {
+	case MAN_nf:
+	case MAN_EX:
+		want_fillmode = MAN_nf;
+		return;
+	case MAN_fi:
+	case MAN_EE:
+		want_fillmode = MAN_fi;
+		if (fillmode(h, 0) == MAN_fi)
+			print_otag(h, TAG_BR, "");
+		return;
+	default:
+		break;
+	}
+
+	/* Set up fill mode for the upcoming node. */
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		save_fillmode = 0;
+		/* Some block macros suspend or cancel .nf. */
+		switch (n->tok) {
+		case MAN_TP:  /* Tagged paragraphs		*/
+		case MAN_IP:  /* temporarily disable .nf	*/
+		case MAN_HP:  /* for the head.			*/
+			save_fillmode = want_fillmode;
+			/* FALLTHROUGH */
+		case MAN_SH:  /* Section headers		*/
+		case MAN_SS:  /* permanently cancel .nf.	*/
+			want_fillmode = MAN_fi;
+			/* FALLTHROUGH */
+		case MAN_PP:  /* These have no head.		*/
+		case MAN_LP:  /* They will simply		*/
+		case MAN_P:   /* reopen .nf in the body.	*/
+		case MAN_RS:
+		case MAN_UR:
+		case MAN_MT:
+			fillmode(h, MAN_fi);
+			break;
+		default:
+			break;
+		}
+		break;
+	case ROFFT_TBL:
+		fillmode(h, MAN_fi);
+		break;
+	case ROFFT_ELEM:
+		/*
+		 * Some in-line macros produce tags and/or text
+		 * in the handler, so they require fill mode to be
+		 * configured up front just like for text nodes.
+		 * For the others, keep the traditional approach
+		 * of doing the same, for now.
+		 */
+		fillmode(h, want_fillmode);
+		break;
+	case ROFFT_TEXT:
+		if (fillmode(h, want_fillmode) == MAN_fi &&
+		    want_fillmode == MAN_fi &&
+		    n->flags & NODE_LINE && *n->string == ' ' &&
+		    (h->flags & HTML_NONEWLINE) == 0)
+			print_otag(h, TAG_BR, "");
+		if (*n->string != '\0')
+			break;
+		print_paragraph(h);
+		return;
+	default:
+		break;
+	}
+
+	/* Produce output for this node. */
+
+	child = 1;
+	switch (n->type) {
+	case ROFFT_TEXT:
+		t = h->tag;
+		print_text(h, n->string);
+		break;
+	case ROFFT_EQN:
+		t = h->tag;
+		print_eqn(h, n->eqn);
+		break;
+	case ROFFT_TBL:
+		/*
+		 * This will take care of initialising all of the table
+		 * state data for the first table, then tearing it down
+		 * for the last one.
+		 */
+		print_tbl(h, n->span);
+		return;
+	default:
+		/*
+		 * Close out scope of font prior to opening a macro
+		 * scope.
+		 */
+		if (HTMLFONT_NONE != h->metac) {
+			h->metal = h->metac;
+			h->metac = HTMLFONT_NONE;
+		}
+
+		/*
+		 * Close out the current table, if it's open, and unset
+		 * the "meta" table state.  This will be reopened on the
+		 * next table element.
+		 */
+		if (h->tblt)
+			print_tblclose(h);
+
+		t = h->tag;
+		if (n->tok < ROFF_MAX) {
+			roff_html_pre(h, n);
+			child = 0;
+			break;
+		}
+
+		assert(n->tok >= MAN_TH && n->tok < MAN_MAX);
+		if (mans[n->tok].pre)
+			child = (*mans[n->tok].pre)(man, n, h);
+
+		/* Some block macros resume .nf in the body. */
+		if (save_fillmode && n->type == ROFFT_BODY)
+			want_fillmode = save_fillmode;
+
+		break;
+	}
+
+	if (child && n->child)
+		print_man_nodelist(man, n->child, h);
+
+	/* This will automatically close out any font scope. */
+	print_stagq(h, t);
+
+	if (fillmode(h, 0) == MAN_nf &&
+	    n->next != NULL && n->next->flags & NODE_LINE)
+		print_endline(h);
+}
+
+/*
+ * MAN_nf switches to no-fill mode, MAN_fi to fill mode.
+ * Other arguments do not switch.
+ * The old mode is returned.
+ */
+static int
+fillmode(struct html *h, int want)
+{
+	struct tag	*pre;
+	int		 had;
+
+	for (pre = h->tag; pre != NULL; pre = pre->next)
+		if (pre->tag == TAG_PRE)
+			break;
+
+	had = pre == NULL ? MAN_fi : MAN_nf;
+
+	if (want && want != had) {
+		if (want == MAN_nf)
+			print_otag(h, TAG_PRE, "");
+		else
+			print_tagq(h, pre);
+	}
+	return had;
+}
+
+static int
+a2width(const struct roff_node *n, struct roffsu *su)
+{
+	if (n->type != ROFFT_TEXT)
+		return 0;
+	return a2roffsu(n->string, su, SCALE_EN) != NULL;
+}
+
+static void
+man_root_pre(MAN_ARGS)
+{
+	struct tag	*t, *tt;
+	char		*title;
+
+	assert(man->title);
+	assert(man->msec);
+	mandoc_asprintf(&title, "%s(%s)", man->title, man->msec);
+
+	t = print_otag(h, TAG_TABLE, "c", "head");
+	tt = print_otag(h, TAG_TR, "");
+
+	print_otag(h, TAG_TD, "c", "head-ltitle");
+	print_text(h, title);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "head-vol");
+	if (NULL != man->vol)
+		print_text(h, man->vol);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "head-rtitle");
+	print_text(h, title);
+	print_tagq(h, t);
+	free(title);
+}
+
+static void
+man_root_post(MAN_ARGS)
+{
+	struct tag	*t, *tt;
+
+	t = print_otag(h, TAG_TABLE, "c", "foot");
+	tt = print_otag(h, TAG_TR, "");
+
+	print_otag(h, TAG_TD, "c", "foot-date");
+	print_text(h, man->date);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "foot-os");
+	if (man->os)
+		print_text(h, man->os);
+	print_tagq(h, t);
+}
+
+static int
+man_SH_pre(MAN_ARGS)
+{
+	char	*id;
+
+	if (n->type == ROFFT_HEAD) {
+		id = html_make_id(n);
+		print_otag(h, TAG_H1, "cTi", "Sh", id);
+		if (id != NULL)
+			print_otag(h, TAG_A, "chR", "selflink", id);
+		free(id);
+	}
+	return 1;
+}
+
+static int
+man_alt_pre(MAN_ARGS)
+{
+	const struct roff_node	*nn;
+	int		 i;
+	enum htmltag	 fp;
+	struct tag	*t;
+
+	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
+		switch (n->tok) {
+		case MAN_BI:
+			fp = i % 2 ? TAG_I : TAG_B;
+			break;
+		case MAN_IB:
+			fp = i % 2 ? TAG_B : TAG_I;
+			break;
+		case MAN_RI:
+			fp = i % 2 ? TAG_I : TAG_MAX;
+			break;
+		case MAN_IR:
+			fp = i % 2 ? TAG_MAX : TAG_I;
+			break;
+		case MAN_BR:
+			fp = i % 2 ? TAG_MAX : TAG_B;
+			break;
+		case MAN_RB:
+			fp = i % 2 ? TAG_B : TAG_MAX;
+			break;
+		default:
+			abort();
+		}
+
+		if (i)
+			h->flags |= HTML_NOSPACE;
+
+		if (fp != TAG_MAX)
+			t = print_otag(h, fp, "");
+
+		print_text(h, nn->string);
+
+		if (fp != TAG_MAX)
+			print_tagq(h, t);
+	}
+	return 0;
+}
+
+static int
+man_SM_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_SMALL, "");
+	if (MAN_SB == n->tok)
+		print_otag(h, TAG_B, "");
+	return 1;
+}
+
+static int
+man_SS_pre(MAN_ARGS)
+{
+	char	*id;
+
+	if (n->type == ROFFT_HEAD) {
+		id = html_make_id(n);
+		print_otag(h, TAG_H2, "cTi", "Ss", id);
+		if (id != NULL)
+			print_otag(h, TAG_A, "chR", "selflink", id);
+		free(id);
+	}
+	return 1;
+}
+
+static int
+man_PP_pre(MAN_ARGS)
+{
+
+	if (n->type == ROFFT_HEAD)
+		return 0;
+	else if (n->type == ROFFT_BLOCK)
+		print_bvspace(h, n);
+
+	return 1;
+}
+
+static int
+man_IP_pre(MAN_ARGS)
+{
+	const struct roff_node	*nn;
+
+	if (n->type == ROFFT_BODY) {
+		print_otag(h, TAG_DD, "c", "It-tag");
+		return 1;
+	} else if (n->type != ROFFT_HEAD) {
+		print_otag(h, TAG_DL, "c", "Bl-tag");
+		return 1;
+	}
+
+	/* FIXME: width specification. */
+
+	print_otag(h, TAG_DT, "c", "It-tag");
+
+	/* For IP, only print the first header element. */
+
+	if (MAN_IP == n->tok && n->child)
+		print_man_node(man, n->child, h);
+
+	/* For TP, only print next-line header elements. */
+
+	if (MAN_TP == n->tok) {
+		nn = n->child;
+		while (NULL != nn && 0 == (NODE_LINE & nn->flags))
+			nn = nn->next;
+		while (NULL != nn) {
+			print_man_node(man, nn, h);
+			nn = nn->next;
+		}
+	}
+
+	return 0;
+}
+
+static int
+man_HP_pre(MAN_ARGS)
+{
+	struct roffsu	 sum, sui;
+	const struct roff_node *np;
+
+	if (n->type == ROFFT_HEAD)
+		return 0;
+	else if (n->type != ROFFT_BLOCK)
+		return 1;
+
+	np = n->head->child;
+
+	if (np == NULL || !a2width(np, &sum))
+		SCALE_HS_INIT(&sum, INDENT);
+
+	sui.unit = sum.unit;
+	sui.scale = -sum.scale;
+
+	print_bvspace(h, n);
+	print_otag(h, TAG_DIV, "csului", "Pp", &sum, &sui);
+	return 1;
+}
+
+static int
+man_OP_pre(MAN_ARGS)
+{
+	struct tag	*tt;
+
+	print_text(h, "[");
+	h->flags |= HTML_NOSPACE;
+	tt = print_otag(h, TAG_SPAN, "c", "Op");
+
+	if (NULL != (n = n->child)) {
+		print_otag(h, TAG_B, "");
+		print_text(h, n->string);
+	}
+
+	print_stagq(h, tt);
+
+	if (NULL != n && NULL != n->next) {
+		print_otag(h, TAG_I, "");
+		print_text(h, n->next->string);
+	}
+
+	print_stagq(h, tt);
+	h->flags |= HTML_NOSPACE;
+	print_text(h, "]");
+	return 0;
+}
+
+static int
+man_B_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_B, "");
+	return 1;
+}
+
+static int
+man_I_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_I, "");
+	return 1;
+}
+
+static int
+man_in_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_BR, "");
+	return 0;
+}
+
+static int
+man_ign_pre(MAN_ARGS)
+{
+
+	return 0;
+}
+
+static int
+man_RS_pre(MAN_ARGS)
+{
+	struct roffsu	 su;
+
+	if (n->type == ROFFT_HEAD)
+		return 0;
+	else if (n->type == ROFFT_BODY)
+		return 1;
+
+	SCALE_HS_INIT(&su, INDENT);
+	if (n->head->child)
+		a2width(n->head->child, &su);
+
+	print_otag(h, TAG_DIV, "sul", &su);
+	return 1;
+}
+
+static int
+man_UR_pre(MAN_ARGS)
+{
+	char *cp;
+	n = n->child;
+	assert(n->type == ROFFT_HEAD);
+	if (n->child != NULL) {
+		assert(n->child->type == ROFFT_TEXT);
+		if (n->tok == MAN_MT) {
+			mandoc_asprintf(&cp, "mailto:%s", n->child->string);
+			print_otag(h, TAG_A, "cTh", "Mt", cp);
+			free(cp);
+		} else
+			print_otag(h, TAG_A, "cTh", "Lk", n->child->string);
+	}
+
+	assert(n->next->type == ROFFT_BODY);
+	if (n->next->child != NULL)
+		n = n->next;
+
+	print_man_nodelist(man, n->child, h);
+
+	return 0;
+}

Added: vendor/mandoc/dist/man_macro.c
===================================================================
--- vendor/mandoc/dist/man_macro.c	                        (rev 0)
+++ vendor/mandoc/dist/man_macro.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,422 @@
+/*	$Id: man_macro.c,v 1.123 2017/06/25 11:45:37 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2012-2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2013 Franco Fichtner <franco at lastsummer.de>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "man.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libman.h"
+
+static	void		 blk_close(MACRO_PROT_ARGS);
+static	void		 blk_exp(MACRO_PROT_ARGS);
+static	void		 blk_imp(MACRO_PROT_ARGS);
+static	void		 in_line_eoln(MACRO_PROT_ARGS);
+static	int		 man_args(struct roff_man *, int,
+				int *, char *, char **);
+static	void		 rew_scope(struct roff_man *, enum roff_tok);
+
+const	struct man_macro __man_macros[MAN_MAX - MAN_TH] = {
+	{ in_line_eoln, MAN_BSCOPE }, /* TH */
+	{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SH */
+	{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SS */
+	{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* TP */
+	{ blk_imp, MAN_BSCOPE }, /* LP */
+	{ blk_imp, MAN_BSCOPE }, /* PP */
+	{ blk_imp, MAN_BSCOPE }, /* P */
+	{ blk_imp, MAN_BSCOPE }, /* IP */
+	{ blk_imp, MAN_BSCOPE }, /* HP */
+	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* SM */
+	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* SB */
+	{ in_line_eoln, 0 }, /* BI */
+	{ in_line_eoln, 0 }, /* IB */
+	{ in_line_eoln, 0 }, /* BR */
+	{ in_line_eoln, 0 }, /* RB */
+	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* R */
+	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* B */
+	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* I */
+	{ in_line_eoln, 0 }, /* IR */
+	{ in_line_eoln, 0 }, /* RI */
+	{ in_line_eoln, MAN_NSCOPED }, /* nf */
+	{ in_line_eoln, MAN_NSCOPED }, /* fi */
+	{ blk_close, MAN_BSCOPE }, /* RE */
+	{ blk_exp, MAN_BSCOPE }, /* RS */
+	{ in_line_eoln, 0 }, /* DT */
+	{ in_line_eoln, 0 }, /* UC */
+	{ in_line_eoln, MAN_NSCOPED }, /* PD */
+	{ in_line_eoln, 0 }, /* AT */
+	{ in_line_eoln, MAN_NSCOPED }, /* in */
+	{ in_line_eoln, 0 }, /* OP */
+	{ in_line_eoln, MAN_BSCOPE }, /* EX */
+	{ in_line_eoln, MAN_BSCOPE }, /* EE */
+	{ blk_exp, MAN_BSCOPE }, /* UR */
+	{ blk_close, MAN_BSCOPE }, /* UE */
+	{ blk_exp, MAN_BSCOPE }, /* MT */
+	{ blk_close, MAN_BSCOPE }, /* ME */
+};
+const	struct man_macro *const man_macros = __man_macros - MAN_TH;
+
+
+void
+man_unscope(struct roff_man *man, const struct roff_node *to)
+{
+	struct roff_node *n;
+
+	to = to->parent;
+	n = man->last;
+	while (n != to) {
+
+		/* Reached the end of the document? */
+
+		if (to == NULL && ! (n->flags & NODE_VALID)) {
+			if (man->flags & (MAN_BLINE | MAN_ELINE) &&
+			    man_macros[n->tok].flags & MAN_SCOPED) {
+				mandoc_vmsg(MANDOCERR_BLK_LINE,
+				    man->parse, n->line, n->pos,
+				    "EOF breaks %s", roff_name[n->tok]);
+				if (man->flags & MAN_ELINE)
+					man->flags &= ~MAN_ELINE;
+				else {
+					assert(n->type == ROFFT_HEAD);
+					n = n->parent;
+					man->flags &= ~MAN_BLINE;
+				}
+				man->last = n;
+				n = n->parent;
+				roff_node_delete(man, man->last);
+				continue;
+			}
+			if (n->type == ROFFT_BLOCK &&
+			    man_macros[n->tok].fp == blk_exp)
+				mandoc_msg(MANDOCERR_BLK_NOEND,
+				    man->parse, n->line, n->pos,
+				    roff_name[n->tok]);
+		}
+
+		/*
+		 * We might delete the man->last node
+		 * in the post-validation phase.
+		 * Save a pointer to the parent such that
+		 * we know where to continue the iteration.
+		 */
+
+		man->last = n;
+		n = n->parent;
+		man->last->flags |= NODE_VALID;
+	}
+
+	/*
+	 * If we ended up at the parent of the node we were
+	 * supposed to rewind to, that means the target node
+	 * got deleted, so add the next node we parse as a child
+	 * of the parent instead of as a sibling of the target.
+	 */
+
+	man->next = (man->last == to) ?
+	    ROFF_NEXT_CHILD : ROFF_NEXT_SIBLING;
+}
+
+/*
+ * Rewinding entails ascending the parse tree until a coherent point,
+ * for example, the `SH' macro will close out any intervening `SS'
+ * scopes.  When a scope is closed, it must be validated and actioned.
+ */
+static void
+rew_scope(struct roff_man *man, enum roff_tok tok)
+{
+	struct roff_node *n;
+
+	/* Preserve empty paragraphs before RS. */
+
+	n = man->last;
+	if (tok == MAN_RS && n->child == NULL &&
+	    (n->tok == MAN_P || n->tok == MAN_PP || n->tok == MAN_LP))
+		return;
+
+	for (;;) {
+		if (n->type == ROFFT_ROOT)
+			return;
+		if (n->flags & NODE_VALID) {
+			n = n->parent;
+			continue;
+		}
+		if (n->type != ROFFT_BLOCK) {
+			if (n->parent->type == ROFFT_ROOT) {
+				man_unscope(man, n);
+				return;
+			} else {
+				n = n->parent;
+				continue;
+			}
+		}
+		if (tok != MAN_SH && (n->tok == MAN_SH ||
+		    (tok != MAN_SS && (n->tok == MAN_SS ||
+		     man_macros[n->tok].fp == blk_exp))))
+			return;
+		man_unscope(man, n);
+		n = man->last;
+	}
+}
+
+
+/*
+ * Close out a generic explicit macro.
+ */
+void
+blk_close(MACRO_PROT_ARGS)
+{
+	enum roff_tok		 ntok;
+	const struct roff_node	*nn;
+	char			*p;
+	int			 nrew, target;
+
+	nrew = 1;
+	switch (tok) {
+	case MAN_RE:
+		ntok = MAN_RS;
+		if ( ! man_args(man, line, pos, buf, &p))
+			break;
+		for (nn = man->last->parent; nn; nn = nn->parent)
+			if (nn->tok == ntok && nn->type == ROFFT_BLOCK)
+				nrew++;
+		target = strtol(p, &p, 10);
+		if (*p != '\0')
+			mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
+			    line, p - buf, "RE ... %s", p);
+		if (target == 0)
+			target = 1;
+		nrew -= target;
+		if (nrew < 1) {
+			mandoc_vmsg(MANDOCERR_RE_NOTOPEN, man->parse,
+			    line, ppos, "RE %d", target);
+			return;
+		}
+		break;
+	case MAN_UE:
+		ntok = MAN_UR;
+		break;
+	case MAN_ME:
+		ntok = MAN_MT;
+		break;
+	default:
+		abort();
+	}
+
+	for (nn = man->last->parent; nn; nn = nn->parent)
+		if (nn->tok == ntok && nn->type == ROFFT_BLOCK && ! --nrew)
+			break;
+
+	if (nn == NULL) {
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, man->parse,
+		    line, ppos, roff_name[tok]);
+		rew_scope(man, MAN_PP);
+	} else {
+		line = man->last->line;
+		ppos = man->last->pos;
+		ntok = man->last->tok;
+		man_unscope(man, nn);
+
+		if (tok == MAN_RE && nn->head->aux > 0)
+			roff_setreg(man->roff, "an-margin",
+			    nn->head->aux, '-');
+
+		/* Move a trailing paragraph behind the block. */
+
+		if (ntok == MAN_LP || ntok == MAN_PP || ntok == MAN_P) {
+			*pos = strlen(buf);
+			blk_imp(man, ntok, line, ppos, pos, buf);
+		}
+	}
+}
+
+void
+blk_exp(MACRO_PROT_ARGS)
+{
+	struct roff_node *head;
+	char		*p;
+	int		 la;
+
+	rew_scope(man, tok);
+	roff_block_alloc(man, line, ppos, tok);
+	head = roff_head_alloc(man, line, ppos, tok);
+
+	la = *pos;
+	if (man_args(man, line, pos, buf, &p)) {
+		roff_word_alloc(man, line, la, p);
+		if (tok == MAN_RS) {
+			if (roff_getreg(man->roff, "an-margin") == 0)
+				roff_setreg(man->roff, "an-margin",
+				    7 * 24, '=');
+			if ((head->aux = strtod(p, NULL) * 24.0) > 0)
+				roff_setreg(man->roff, "an-margin",
+				    head->aux, '+');
+		}
+	}
+
+	if (buf[*pos] != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse, line,
+		    *pos, "%s ... %s", roff_name[tok], buf + *pos);
+
+	man_unscope(man, head);
+	roff_body_alloc(man, line, ppos, tok);
+}
+
+/*
+ * Parse an implicit-block macro.  These contain a ROFFT_HEAD and a
+ * ROFFT_BODY contained within a ROFFT_BLOCK.  Rules for closing out other
+ * scopes, such as `SH' closing out an `SS', are defined in the rew
+ * routines.
+ */
+void
+blk_imp(MACRO_PROT_ARGS)
+{
+	int		 la;
+	char		*p;
+	struct roff_node *n;
+
+	rew_scope(man, tok);
+	n = roff_block_alloc(man, line, ppos, tok);
+	if (n->tok == MAN_SH || n->tok == MAN_SS)
+		man->flags &= ~MAN_LITERAL;
+	n = roff_head_alloc(man, line, ppos, tok);
+
+	/* Add line arguments. */
+
+	for (;;) {
+		la = *pos;
+		if ( ! man_args(man, line, pos, buf, &p))
+			break;
+		roff_word_alloc(man, line, la, p);
+	}
+
+	/*
+	 * For macros having optional next-line scope,
+	 * keep the head open if there were no arguments.
+	 * For `TP', always keep the head open.
+	 */
+
+	if (man_macros[tok].flags & MAN_SCOPED &&
+	    (tok == MAN_TP || n == man->last)) {
+		man->flags |= MAN_BLINE;
+		return;
+	}
+
+	/* Close out the head and open the body. */
+
+	man_unscope(man, n);
+	roff_body_alloc(man, line, ppos, tok);
+}
+
+void
+in_line_eoln(MACRO_PROT_ARGS)
+{
+	int		 la;
+	char		*p;
+	struct roff_node *n;
+
+	roff_elem_alloc(man, line, ppos, tok);
+	n = man->last;
+
+	for (;;) {
+		if (buf[*pos] != '\0' && (tok == MAN_fi || tok == MAN_nf)) {
+			mandoc_vmsg(MANDOCERR_ARG_SKIP,
+			    man->parse, line, *pos, "%s %s",
+			    roff_name[tok], buf + *pos);
+			break;
+		}
+		if (buf[*pos] != '\0' && man->last != n && tok == MAN_PD) {
+			mandoc_vmsg(MANDOCERR_ARG_EXCESS,
+			    man->parse, line, *pos, "%s ... %s",
+			    roff_name[tok], buf + *pos);
+			break;
+		}
+		la = *pos;
+		if ( ! man_args(man, line, pos, buf, &p))
+			break;
+		if (man_macros[tok].flags & MAN_JOIN &&
+		    man->last->type == ROFFT_TEXT)
+			roff_word_append(man, p);
+		else
+			roff_word_alloc(man, line, la, p);
+	}
+
+	/*
+	 * Append NODE_EOS in case the last snipped argument
+	 * ends with a dot, e.g. `.IR syslog (3).'
+	 */
+
+	if (n != man->last &&
+	    mandoc_eos(man->last->string, strlen(man->last->string)))
+		man->last->flags |= NODE_EOS;
+
+	/*
+	 * If no arguments are specified and this is MAN_SCOPED (i.e.,
+	 * next-line scoped), then set our mode to indicate that we're
+	 * waiting for terms to load into our context.
+	 */
+
+	if (n == man->last && man_macros[tok].flags & MAN_SCOPED) {
+		assert( ! (man_macros[tok].flags & MAN_NSCOPED));
+		man->flags |= MAN_ELINE;
+		return;
+	}
+
+	assert(man->last->type != ROFFT_ROOT);
+	man->next = ROFF_NEXT_SIBLING;
+
+	/* Rewind our element scope. */
+
+	for ( ; man->last; man->last = man->last->parent) {
+		man_state(man, man->last);
+		if (man->last == n)
+			break;
+	}
+}
+
+void
+man_endparse(struct roff_man *man)
+{
+
+	man_unscope(man, man->first);
+	man->flags &= ~MAN_LITERAL;
+}
+
+static int
+man_args(struct roff_man *man, int line, int *pos, char *buf, char **v)
+{
+	char	 *start;
+
+	assert(*pos);
+	*v = start = buf + *pos;
+	assert(' ' != *start);
+
+	if ('\0' == *start)
+		return 0;
+
+	*v = mandoc_getarg(man->parse, v, line, pos);
+	return 1;
+}

Added: vendor/mandoc/dist/man_term.c
===================================================================
--- vendor/mandoc/dist/man_term.c	                        (rev 0)
+++ vendor/mandoc/dist/man_term.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1101 @@
+/*	$Id: man_term.c,v 1.209 2017/07/31 15:19:06 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "man.h"
+#include "out.h"
+#include "term.h"
+#include "main.h"
+
+#define	MAXMARGINS	  64 /* maximum number of indented scopes */
+
+struct	mtermp {
+	int		  fl;
+#define	MANT_LITERAL	 (1 << 0)
+	int		  lmargin[MAXMARGINS]; /* margins (incl. vis. page) */
+	int		  lmargincur; /* index of current margin */
+	int		  lmarginsz; /* actual number of nested margins */
+	size_t		  offset; /* default offset to visible page */
+	int		  pardist; /* vert. space before par., unit: [v] */
+};
+
+#define	DECL_ARGS	  struct termp *p, \
+			  struct mtermp *mt, \
+			  struct roff_node *n, \
+			  const struct roff_meta *meta
+
+struct	termact {
+	int		(*pre)(DECL_ARGS);
+	void		(*post)(DECL_ARGS);
+	int		  flags;
+#define	MAN_NOTEXT	 (1 << 0) /* Never has text children. */
+};
+
+static	void		  print_man_nodelist(DECL_ARGS);
+static	void		  print_man_node(DECL_ARGS);
+static	void		  print_man_head(struct termp *,
+				const struct roff_meta *);
+static	void		  print_man_foot(struct termp *,
+				const struct roff_meta *);
+static	void		  print_bvspace(struct termp *,
+				const struct roff_node *, int);
+
+static	int		  pre_B(DECL_ARGS);
+static	int		  pre_DT(DECL_ARGS);
+static	int		  pre_HP(DECL_ARGS);
+static	int		  pre_I(DECL_ARGS);
+static	int		  pre_IP(DECL_ARGS);
+static	int		  pre_OP(DECL_ARGS);
+static	int		  pre_PD(DECL_ARGS);
+static	int		  pre_PP(DECL_ARGS);
+static	int		  pre_RS(DECL_ARGS);
+static	int		  pre_SH(DECL_ARGS);
+static	int		  pre_SS(DECL_ARGS);
+static	int		  pre_TP(DECL_ARGS);
+static	int		  pre_UR(DECL_ARGS);
+static	int		  pre_alternate(DECL_ARGS);
+static	int		  pre_ign(DECL_ARGS);
+static	int		  pre_in(DECL_ARGS);
+static	int		  pre_literal(DECL_ARGS);
+
+static	void		  post_IP(DECL_ARGS);
+static	void		  post_HP(DECL_ARGS);
+static	void		  post_RS(DECL_ARGS);
+static	void		  post_SH(DECL_ARGS);
+static	void		  post_SS(DECL_ARGS);
+static	void		  post_TP(DECL_ARGS);
+static	void		  post_UR(DECL_ARGS);
+
+static	const struct termact __termacts[MAN_MAX - MAN_TH] = {
+	{ NULL, NULL, 0 }, /* TH */
+	{ pre_SH, post_SH, 0 }, /* SH */
+	{ pre_SS, post_SS, 0 }, /* SS */
+	{ pre_TP, post_TP, 0 }, /* TP */
+	{ pre_PP, NULL, 0 }, /* LP */
+	{ pre_PP, NULL, 0 }, /* PP */
+	{ pre_PP, NULL, 0 }, /* P */
+	{ pre_IP, post_IP, 0 }, /* IP */
+	{ pre_HP, post_HP, 0 }, /* HP */
+	{ NULL, NULL, 0 }, /* SM */
+	{ pre_B, NULL, 0 }, /* SB */
+	{ pre_alternate, NULL, 0 }, /* BI */
+	{ pre_alternate, NULL, 0 }, /* IB */
+	{ pre_alternate, NULL, 0 }, /* BR */
+	{ pre_alternate, NULL, 0 }, /* RB */
+	{ NULL, NULL, 0 }, /* R */
+	{ pre_B, NULL, 0 }, /* B */
+	{ pre_I, NULL, 0 }, /* I */
+	{ pre_alternate, NULL, 0 }, /* IR */
+	{ pre_alternate, NULL, 0 }, /* RI */
+	{ pre_literal, NULL, 0 }, /* nf */
+	{ pre_literal, NULL, 0 }, /* fi */
+	{ NULL, NULL, 0 }, /* RE */
+	{ pre_RS, post_RS, 0 }, /* RS */
+	{ pre_DT, NULL, 0 }, /* DT */
+	{ pre_ign, NULL, MAN_NOTEXT }, /* UC */
+	{ pre_PD, NULL, MAN_NOTEXT }, /* PD */
+	{ pre_ign, NULL, 0 }, /* AT */
+	{ pre_in, NULL, MAN_NOTEXT }, /* in */
+	{ pre_OP, NULL, 0 }, /* OP */
+	{ pre_literal, NULL, 0 }, /* EX */
+	{ pre_literal, NULL, 0 }, /* EE */
+	{ pre_UR, post_UR, 0 }, /* UR */
+	{ NULL, NULL, 0 }, /* UE */
+	{ pre_UR, post_UR, 0 }, /* MT */
+	{ NULL, NULL, 0 }, /* ME */
+};
+static	const struct termact *termacts = __termacts - MAN_TH;
+
+
+void
+terminal_man(void *arg, const struct roff_man *man)
+{
+	struct termp		*p;
+	struct roff_node	*n;
+	struct mtermp		 mt;
+	size_t			 save_defindent;
+
+	p = (struct termp *)arg;
+	save_defindent = p->defindent;
+	if (p->synopsisonly == 0 && p->defindent == 0)
+		p->defindent = 7;
+	p->tcol->rmargin = p->maxrmargin = p->defrmargin;
+	term_tab_set(p, NULL);
+	term_tab_set(p, "T");
+	term_tab_set(p, ".5i");
+
+	memset(&mt, 0, sizeof(struct mtermp));
+	mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);
+	mt.offset = term_len(p, p->defindent);
+	mt.pardist = 1;
+
+	n = man->first->child;
+	if (p->synopsisonly) {
+		while (n != NULL) {
+			if (n->tok == MAN_SH &&
+			    n->child->child->type == ROFFT_TEXT &&
+			    !strcmp(n->child->child->string, "SYNOPSIS")) {
+				if (n->child->next->child != NULL)
+					print_man_nodelist(p, &mt,
+					    n->child->next->child,
+					    &man->meta);
+				term_newln(p);
+				break;
+			}
+			n = n->next;
+		}
+	} else {
+		term_begin(p, print_man_head, print_man_foot, &man->meta);
+		p->flags |= TERMP_NOSPACE;
+		if (n != NULL)
+			print_man_nodelist(p, &mt, n, &man->meta);
+		term_end(p);
+	}
+	p->defindent = save_defindent;
+}
+
+/*
+ * Printing leading vertical space before a block.
+ * This is used for the paragraph macros.
+ * The rules are pretty simple, since there's very little nesting going
+ * on here.  Basically, if we're the first within another block (SS/SH),
+ * then don't emit vertical space.  If we are (RS), then do.  If not the
+ * first, print it.
+ */
+static void
+print_bvspace(struct termp *p, const struct roff_node *n, int pardist)
+{
+	int	 i;
+
+	term_newln(p);
+
+	if (n->body && n->body->child)
+		if (n->body->child->type == ROFFT_TBL)
+			return;
+
+	if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)
+		if (NULL == n->prev)
+			return;
+
+	for (i = 0; i < pardist; i++)
+		term_vspace(p);
+}
+
+
+static int
+pre_ign(DECL_ARGS)
+{
+
+	return 0;
+}
+
+static int
+pre_I(DECL_ARGS)
+{
+
+	term_fontrepl(p, TERMFONT_UNDER);
+	return 1;
+}
+
+static int
+pre_literal(DECL_ARGS)
+{
+
+	term_newln(p);
+
+	if (n->tok == MAN_nf || n->tok == MAN_EX)
+		mt->fl |= MANT_LITERAL;
+	else
+		mt->fl &= ~MANT_LITERAL;
+
+	/*
+	 * Unlike .IP and .TP, .HP does not have a HEAD.
+	 * So in case a second call to term_flushln() is needed,
+	 * indentation has to be set up explicitly.
+	 */
+	if (n->parent->tok == MAN_HP && p->tcol->rmargin < p->maxrmargin) {
+		p->tcol->offset = p->tcol->rmargin;
+		p->tcol->rmargin = p->maxrmargin;
+		p->trailspace = 0;
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
+		p->flags |= TERMP_NOSPACE;
+	}
+
+	return 0;
+}
+
+static int
+pre_PD(DECL_ARGS)
+{
+	struct roffsu	 su;
+
+	n = n->child;
+	if (n == NULL) {
+		mt->pardist = 1;
+		return 0;
+	}
+	assert(n->type == ROFFT_TEXT);
+	if (a2roffsu(n->string, &su, SCALE_VS) != NULL)
+		mt->pardist = term_vspan(p, &su);
+	return 0;
+}
+
+static int
+pre_alternate(DECL_ARGS)
+{
+	enum termfont		 font[2];
+	struct roff_node	*nn;
+	int			 savelit, i;
+
+	switch (n->tok) {
+	case MAN_RB:
+		font[0] = TERMFONT_NONE;
+		font[1] = TERMFONT_BOLD;
+		break;
+	case MAN_RI:
+		font[0] = TERMFONT_NONE;
+		font[1] = TERMFONT_UNDER;
+		break;
+	case MAN_BR:
+		font[0] = TERMFONT_BOLD;
+		font[1] = TERMFONT_NONE;
+		break;
+	case MAN_BI:
+		font[0] = TERMFONT_BOLD;
+		font[1] = TERMFONT_UNDER;
+		break;
+	case MAN_IR:
+		font[0] = TERMFONT_UNDER;
+		font[1] = TERMFONT_NONE;
+		break;
+	case MAN_IB:
+		font[0] = TERMFONT_UNDER;
+		font[1] = TERMFONT_BOLD;
+		break;
+	default:
+		abort();
+	}
+
+	savelit = MANT_LITERAL & mt->fl;
+	mt->fl &= ~MANT_LITERAL;
+
+	for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
+		term_fontrepl(p, font[i]);
+		if (savelit && NULL == nn->next)
+			mt->fl |= MANT_LITERAL;
+		assert(nn->type == ROFFT_TEXT);
+		term_word(p, nn->string);
+		if (nn->flags & NODE_EOS)
+                	p->flags |= TERMP_SENTENCE;
+		if (nn->next)
+			p->flags |= TERMP_NOSPACE;
+	}
+
+	return 0;
+}
+
+static int
+pre_B(DECL_ARGS)
+{
+
+	term_fontrepl(p, TERMFONT_BOLD);
+	return 1;
+}
+
+static int
+pre_OP(DECL_ARGS)
+{
+
+	term_word(p, "[");
+	p->flags |= TERMP_NOSPACE;
+
+	if (NULL != (n = n->child)) {
+		term_fontrepl(p, TERMFONT_BOLD);
+		term_word(p, n->string);
+	}
+	if (NULL != n && NULL != n->next) {
+		term_fontrepl(p, TERMFONT_UNDER);
+		term_word(p, n->next->string);
+	}
+
+	term_fontrepl(p, TERMFONT_NONE);
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, "]");
+	return 0;
+}
+
+static int
+pre_in(DECL_ARGS)
+{
+	struct roffsu	 su;
+	const char	*cp;
+	size_t		 v;
+	int		 less;
+
+	term_newln(p);
+
+	if (n->child == NULL) {
+		p->tcol->offset = mt->offset;
+		return 0;
+	}
+
+	cp = n->child->string;
+	less = 0;
+
+	if ('-' == *cp)
+		less = -1;
+	else if ('+' == *cp)
+		less = 1;
+	else
+		cp--;
+
+	if (a2roffsu(++cp, &su, SCALE_EN) == NULL)
+		return 0;
+
+	v = term_hen(p, &su);
+
+	if (less < 0)
+		p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset;
+	else if (less > 0)
+		p->tcol->offset += v;
+	else
+		p->tcol->offset = v;
+	if (p->tcol->offset > SHRT_MAX)
+		p->tcol->offset = term_len(p, p->defindent);
+
+	return 0;
+}
+
+static int
+pre_DT(DECL_ARGS)
+{
+	term_tab_set(p, NULL);
+	term_tab_set(p, "T");
+	term_tab_set(p, ".5i");
+	return 0;
+}
+
+static int
+pre_HP(DECL_ARGS)
+{
+	struct roffsu		 su;
+	const struct roff_node	*nn;
+	int			 len;
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		print_bvspace(p, n, mt->pardist);
+		return 1;
+	case ROFFT_BODY:
+		break;
+	default:
+		return 0;
+	}
+
+	if ( ! (MANT_LITERAL & mt->fl)) {
+		p->flags |= TERMP_NOBREAK | TERMP_BRIND;
+		p->trailspace = 2;
+	}
+
+	/* Calculate offset. */
+
+	if ((nn = n->parent->head->child) != NULL &&
+	    a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
+		len = term_hen(p, &su);
+		if (len < 0 && (size_t)(-len) > mt->offset)
+			len = -mt->offset;
+		else if (len > SHRT_MAX)
+			len = term_len(p, p->defindent);
+		mt->lmargin[mt->lmargincur] = len;
+	} else
+		len = mt->lmargin[mt->lmargincur];
+
+	p->tcol->offset = mt->offset;
+	p->tcol->rmargin = mt->offset + len;
+	return 1;
+}
+
+static void
+post_HP(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BODY:
+		term_newln(p);
+
+		/*
+		 * Compatibility with a groff bug.
+		 * The .HP macro uses the undocumented .tag request
+		 * which causes a line break and cancels no-space
+		 * mode even if there isn't any output.
+		 */
+
+		if (n->child == NULL)
+			term_vspace(p);
+
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
+		p->trailspace = 0;
+		p->tcol->offset = mt->offset;
+		p->tcol->rmargin = p->maxrmargin;
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_PP(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
+		print_bvspace(p, n, mt->pardist);
+		break;
+	default:
+		p->tcol->offset = mt->offset;
+		break;
+	}
+
+	return n->type != ROFFT_HEAD;
+}
+
+static int
+pre_IP(DECL_ARGS)
+{
+	struct roffsu		 su;
+	const struct roff_node	*nn;
+	int			 len, savelit;
+
+	switch (n->type) {
+	case ROFFT_BODY:
+		p->flags |= TERMP_NOSPACE;
+		break;
+	case ROFFT_HEAD:
+		p->flags |= TERMP_NOBREAK;
+		p->trailspace = 1;
+		break;
+	case ROFFT_BLOCK:
+		print_bvspace(p, n, mt->pardist);
+		/* FALLTHROUGH */
+	default:
+		return 1;
+	}
+
+	/* Calculate the offset from the optional second argument. */
+	if ((nn = n->parent->head->child) != NULL &&
+	    (nn = nn->next) != NULL &&
+	    a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
+		len = term_hen(p, &su);
+		if (len < 0 && (size_t)(-len) > mt->offset)
+			len = -mt->offset;
+		else if (len > SHRT_MAX)
+			len = term_len(p, p->defindent);
+		mt->lmargin[mt->lmargincur] = len;
+	} else
+		len = mt->lmargin[mt->lmargincur];
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		p->tcol->offset = mt->offset;
+		p->tcol->rmargin = mt->offset + len;
+
+		savelit = MANT_LITERAL & mt->fl;
+		mt->fl &= ~MANT_LITERAL;
+
+		if (n->child)
+			print_man_node(p, mt, n->child, meta);
+
+		if (savelit)
+			mt->fl |= MANT_LITERAL;
+
+		return 0;
+	case ROFFT_BODY:
+		p->tcol->offset = mt->offset + len;
+		p->tcol->rmargin = p->maxrmargin;
+		break;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static void
+post_IP(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		term_flushln(p);
+		p->flags &= ~TERMP_NOBREAK;
+		p->trailspace = 0;
+		p->tcol->rmargin = p->maxrmargin;
+		break;
+	case ROFFT_BODY:
+		term_newln(p);
+		p->tcol->offset = mt->offset;
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_TP(DECL_ARGS)
+{
+	struct roffsu		 su;
+	struct roff_node	*nn;
+	int			 len, savelit;
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
+		p->trailspace = 1;
+		break;
+	case ROFFT_BODY:
+		p->flags |= TERMP_NOSPACE;
+		break;
+	case ROFFT_BLOCK:
+		print_bvspace(p, n, mt->pardist);
+		/* FALLTHROUGH */
+	default:
+		return 1;
+	}
+
+	/* Calculate offset. */
+
+	if ((nn = n->parent->head->child) != NULL &&
+	    nn->string != NULL && ! (NODE_LINE & nn->flags) &&
+	    a2roffsu(nn->string, &su, SCALE_EN) != NULL) {
+		len = term_hen(p, &su);
+		if (len < 0 && (size_t)(-len) > mt->offset)
+			len = -mt->offset;
+		else if (len > SHRT_MAX)
+			len = term_len(p, p->defindent);
+		mt->lmargin[mt->lmargincur] = len;
+	} else
+		len = mt->lmargin[mt->lmargincur];
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		p->tcol->offset = mt->offset;
+		p->tcol->rmargin = mt->offset + len;
+
+		savelit = MANT_LITERAL & mt->fl;
+		mt->fl &= ~MANT_LITERAL;
+
+		/* Don't print same-line elements. */
+		nn = n->child;
+		while (NULL != nn && 0 == (NODE_LINE & nn->flags))
+			nn = nn->next;
+
+		while (NULL != nn) {
+			print_man_node(p, mt, nn, meta);
+			nn = nn->next;
+		}
+
+		if (savelit)
+			mt->fl |= MANT_LITERAL;
+		return 0;
+	case ROFFT_BODY:
+		p->tcol->offset = mt->offset + len;
+		p->tcol->rmargin = p->maxrmargin;
+		p->trailspace = 0;
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
+		break;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static void
+post_TP(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		term_flushln(p);
+		break;
+	case ROFFT_BODY:
+		term_newln(p);
+		p->tcol->offset = mt->offset;
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_SS(DECL_ARGS)
+{
+	int	 i;
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		mt->fl &= ~MANT_LITERAL;
+		mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
+		mt->offset = term_len(p, p->defindent);
+
+		/*
+		 * No vertical space before the first subsection
+		 * and after an empty subsection.
+		 */
+
+		do {
+			n = n->prev;
+		} while (n != NULL && n->tok >= MAN_TH &&
+		    termacts[n->tok].flags & MAN_NOTEXT);
+		if (n == NULL || (n->tok == MAN_SS && n->body->child == NULL))
+			break;
+
+		for (i = 0; i < mt->pardist; i++)
+			term_vspace(p);
+		break;
+	case ROFFT_HEAD:
+		term_fontrepl(p, TERMFONT_BOLD);
+		p->tcol->offset = term_len(p, 3);
+		p->tcol->rmargin = mt->offset;
+		p->trailspace = mt->offset;
+		p->flags |= TERMP_NOBREAK | TERMP_BRIND;
+		break;
+	case ROFFT_BODY:
+		p->tcol->offset = mt->offset;
+		p->tcol->rmargin = p->maxrmargin;
+		p->trailspace = 0;
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
+		break;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static void
+post_SS(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		term_newln(p);
+		break;
+	case ROFFT_BODY:
+		term_newln(p);
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_SH(DECL_ARGS)
+{
+	int	 i;
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		mt->fl &= ~MANT_LITERAL;
+		mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
+		mt->offset = term_len(p, p->defindent);
+
+		/*
+		 * No vertical space before the first section
+		 * and after an empty section.
+		 */
+
+		do {
+			n = n->prev;
+		} while (n != NULL && n->tok >= MAN_TH &&
+		    termacts[n->tok].flags & MAN_NOTEXT);
+		if (n == NULL || (n->tok == MAN_SH && n->body->child == NULL))
+			break;
+
+		for (i = 0; i < mt->pardist; i++)
+			term_vspace(p);
+		break;
+	case ROFFT_HEAD:
+		term_fontrepl(p, TERMFONT_BOLD);
+		p->tcol->offset = 0;
+		p->tcol->rmargin = mt->offset;
+		p->trailspace = mt->offset;
+		p->flags |= TERMP_NOBREAK | TERMP_BRIND;
+		break;
+	case ROFFT_BODY:
+		p->tcol->offset = mt->offset;
+		p->tcol->rmargin = p->maxrmargin;
+		p->trailspace = 0;
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
+		break;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static void
+post_SH(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		term_newln(p);
+		break;
+	case ROFFT_BODY:
+		term_newln(p);
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_RS(DECL_ARGS)
+{
+	struct roffsu	 su;
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		term_newln(p);
+		return 1;
+	case ROFFT_HEAD:
+		return 0;
+	default:
+		break;
+	}
+
+	n = n->parent->head;
+	n->aux = SHRT_MAX + 1;
+	if (n->child == NULL)
+		n->aux = mt->lmargin[mt->lmargincur];
+	else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL)
+		n->aux = term_hen(p, &su);
+	if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
+		n->aux = -mt->offset;
+	else if (n->aux > SHRT_MAX)
+		n->aux = term_len(p, p->defindent);
+
+	mt->offset += n->aux;
+	p->tcol->offset = mt->offset;
+	p->tcol->rmargin = p->maxrmargin;
+
+	if (++mt->lmarginsz < MAXMARGINS)
+		mt->lmargincur = mt->lmarginsz;
+
+	mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);
+	return 1;
+}
+
+static void
+post_RS(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		return;
+	case ROFFT_HEAD:
+		return;
+	default:
+		term_newln(p);
+		break;
+	}
+
+	mt->offset -= n->parent->head->aux;
+	p->tcol->offset = mt->offset;
+
+	if (--mt->lmarginsz < MAXMARGINS)
+		mt->lmargincur = mt->lmarginsz;
+}
+
+static int
+pre_UR(DECL_ARGS)
+{
+
+	return n->type != ROFFT_HEAD;
+}
+
+static void
+post_UR(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_BLOCK)
+		return;
+
+	term_word(p, "<");
+	p->flags |= TERMP_NOSPACE;
+
+	if (NULL != n->child->child)
+		print_man_node(p, mt, n->child->child, meta);
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, ">");
+}
+
+static void
+print_man_node(DECL_ARGS)
+{
+	int		 c;
+
+	switch (n->type) {
+	case ROFFT_TEXT:
+		/*
+		 * If we have a blank line, output a vertical space.
+		 * If we have a space as the first character, break
+		 * before printing the line's data.
+		 */
+		if (*n->string == '\0') {
+			if (p->flags & TERMP_NONEWLINE)
+				term_newln(p);
+			else
+				term_vspace(p);
+			return;
+		} else if (*n->string == ' ' && n->flags & NODE_LINE &&
+		    (p->flags & TERMP_NONEWLINE) == 0)
+			term_newln(p);
+
+		term_word(p, n->string);
+		goto out;
+
+	case ROFFT_EQN:
+		if ( ! (n->flags & NODE_LINE))
+			p->flags |= TERMP_NOSPACE;
+		term_eqn(p, n->eqn);
+		if (n->next != NULL && ! (n->next->flags & NODE_LINE))
+			p->flags |= TERMP_NOSPACE;
+		return;
+	case ROFFT_TBL:
+		if (p->tbl.cols == NULL)
+			term_vspace(p);
+		term_tbl(p, n->span);
+		return;
+	default:
+		break;
+	}
+
+	if (n->tok < ROFF_MAX) {
+		roff_term_pre(p, n);
+		return;
+	}
+
+	assert(n->tok >= MAN_TH && n->tok <= MAN_MAX);
+	if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
+		term_fontrepl(p, TERMFONT_NONE);
+
+	c = 1;
+	if (termacts[n->tok].pre)
+		c = (*termacts[n->tok].pre)(p, mt, n, meta);
+
+	if (c && n->child)
+		print_man_nodelist(p, mt, n->child, meta);
+
+	if (termacts[n->tok].post)
+		(*termacts[n->tok].post)(p, mt, n, meta);
+	if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
+		term_fontrepl(p, TERMFONT_NONE);
+
+out:
+	/*
+	 * If we're in a literal context, make sure that words
+	 * together on the same line stay together.  This is a
+	 * POST-printing call, so we check the NEXT word.  Since
+	 * -man doesn't have nested macros, we don't need to be
+	 * more specific than this.
+	 */
+	if (mt->fl & MANT_LITERAL &&
+	    ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&
+	    (n->next == NULL || n->next->flags & NODE_LINE)) {
+		p->flags |= TERMP_BRNEVER | TERMP_NOSPACE;
+		if (n->string != NULL && *n->string != '\0')
+			term_flushln(p);
+		else
+			term_newln(p);
+		p->flags &= ~TERMP_BRNEVER;
+		if (p->tcol->rmargin < p->maxrmargin &&
+		    n->parent->tok == MAN_HP) {
+			p->tcol->offset = p->tcol->rmargin;
+			p->tcol->rmargin = p->maxrmargin;
+		}
+	}
+	if (NODE_EOS & n->flags)
+		p->flags |= TERMP_SENTENCE;
+}
+
+
+static void
+print_man_nodelist(DECL_ARGS)
+{
+
+	while (n != NULL) {
+		print_man_node(p, mt, n, meta);
+		n = n->next;
+	}
+}
+
+static void
+print_man_foot(struct termp *p, const struct roff_meta *meta)
+{
+	char			*title;
+	size_t			 datelen, titlen;
+
+	assert(meta->title);
+	assert(meta->msec);
+	assert(meta->date);
+
+	term_fontrepl(p, TERMFONT_NONE);
+
+	if (meta->hasbody)
+		term_vspace(p);
+
+	/*
+	 * Temporary, undocumented option to imitate mdoc(7) output.
+	 * In the bottom right corner, use the operating system
+	 * instead of the title.
+	 */
+
+	if ( ! p->mdocstyle) {
+		if (meta->hasbody) {
+			term_vspace(p);
+			term_vspace(p);
+		}
+		mandoc_asprintf(&title, "%s(%s)",
+		    meta->title, meta->msec);
+	} else if (meta->os) {
+		title = mandoc_strdup(meta->os);
+	} else {
+		title = mandoc_strdup("");
+	}
+	datelen = term_strlen(p, meta->date);
+
+	/* Bottom left corner: operating system. */
+
+	p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
+	p->trailspace = 1;
+	p->tcol->offset = 0;
+	p->tcol->rmargin = p->maxrmargin > datelen ?
+	    (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
+
+	if (meta->os)
+		term_word(p, meta->os);
+	term_flushln(p);
+
+	/* At the bottom in the middle: manual date. */
+
+	p->tcol->offset = p->tcol->rmargin;
+	titlen = term_strlen(p, title);
+	p->tcol->rmargin = p->maxrmargin > titlen ?
+	    p->maxrmargin - titlen : 0;
+	p->flags |= TERMP_NOSPACE;
+
+	term_word(p, meta->date);
+	term_flushln(p);
+
+	/* Bottom right corner: manual title and section. */
+
+	p->flags &= ~TERMP_NOBREAK;
+	p->flags |= TERMP_NOSPACE;
+	p->trailspace = 0;
+	p->tcol->offset = p->tcol->rmargin;
+	p->tcol->rmargin = p->maxrmargin;
+
+	term_word(p, title);
+	term_flushln(p);
+	free(title);
+}
+
+static void
+print_man_head(struct termp *p, const struct roff_meta *meta)
+{
+	const char		*volume;
+	char			*title;
+	size_t			 vollen, titlen;
+
+	assert(meta->title);
+	assert(meta->msec);
+
+	volume = NULL == meta->vol ? "" : meta->vol;
+	vollen = term_strlen(p, volume);
+
+	/* Top left corner: manual title and section. */
+
+	mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
+	titlen = term_strlen(p, title);
+
+	p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
+	p->trailspace = 1;
+	p->tcol->offset = 0;
+	p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
+	    (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
+	    vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
+
+	term_word(p, title);
+	term_flushln(p);
+
+	/* At the top in the middle: manual volume. */
+
+	p->flags |= TERMP_NOSPACE;
+	p->tcol->offset = p->tcol->rmargin;
+	p->tcol->rmargin = p->tcol->offset + vollen + titlen <
+	    p->maxrmargin ?  p->maxrmargin - titlen : p->maxrmargin;
+
+	term_word(p, volume);
+	term_flushln(p);
+
+	/* Top right corner: title and section, again. */
+
+	p->flags &= ~TERMP_NOBREAK;
+	p->trailspace = 0;
+	if (p->tcol->rmargin + titlen <= p->maxrmargin) {
+		p->flags |= TERMP_NOSPACE;
+		p->tcol->offset = p->tcol->rmargin;
+		p->tcol->rmargin = p->maxrmargin;
+		term_word(p, title);
+		term_flushln(p);
+	}
+
+	p->flags &= ~TERMP_NOSPACE;
+	p->tcol->offset = 0;
+	p->tcol->rmargin = p->maxrmargin;
+
+	/*
+	 * Groff prints three blank lines before the content.
+	 * Do the same, except in the temporary, undocumented
+	 * mode imitating mdoc(7) output.
+	 */
+
+	term_vspace(p);
+	if ( ! p->mdocstyle) {
+		term_vspace(p);
+		term_vspace(p);
+	}
+	free(title);
+}

Added: vendor/mandoc/dist/man_validate.c
===================================================================
--- vendor/mandoc/dist/man_validate.c	                        (rev 0)
+++ vendor/mandoc/dist/man_validate.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,494 @@
+/*	$OpenBSD$ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "man.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libman.h"
+
+#define	CHKARGS	  struct roff_man *man, struct roff_node *n
+
+typedef	void	(*v_check)(CHKARGS);
+
+static	void	  check_par(CHKARGS);
+static	void	  check_part(CHKARGS);
+static	void	  check_root(CHKARGS);
+static	void	  check_text(CHKARGS);
+
+static	void	  post_AT(CHKARGS);
+static	void	  post_IP(CHKARGS);
+static	void	  post_OP(CHKARGS);
+static	void	  post_TH(CHKARGS);
+static	void	  post_UC(CHKARGS);
+static	void	  post_UR(CHKARGS);
+static	void	  post_in(CHKARGS);
+static	void	  post_vs(CHKARGS);
+
+static	const v_check __man_valids[MAN_MAX - MAN_TH] = {
+	post_TH,    /* TH */
+	NULL,       /* SH */
+	NULL,       /* SS */
+	NULL,       /* TP */
+	check_par,  /* LP */
+	check_par,  /* PP */
+	check_par,  /* P */
+	post_IP,    /* IP */
+	NULL,       /* HP */
+	NULL,       /* SM */
+	NULL,       /* SB */
+	NULL,       /* BI */
+	NULL,       /* IB */
+	NULL,       /* BR */
+	NULL,       /* RB */
+	NULL,       /* R */
+	NULL,       /* B */
+	NULL,       /* I */
+	NULL,       /* IR */
+	NULL,       /* RI */
+	NULL,       /* nf */
+	NULL,       /* fi */
+	NULL,       /* RE */
+	check_part, /* RS */
+	NULL,       /* DT */
+	post_UC,    /* UC */
+	NULL,       /* PD */
+	post_AT,    /* AT */
+	post_in,    /* in */
+	post_OP,    /* OP */
+	NULL,       /* EX */
+	NULL,       /* EE */
+	post_UR,    /* UR */
+	NULL,       /* UE */
+	post_UR,    /* MT */
+	NULL,       /* ME */
+};
+static	const v_check *man_valids = __man_valids - MAN_TH;
+
+
+void
+man_node_validate(struct roff_man *man)
+{
+	struct roff_node *n;
+	const v_check	 *cp;
+
+	n = man->last;
+	man->last = man->last->child;
+	while (man->last != NULL) {
+		man_node_validate(man);
+		if (man->last == n)
+			man->last = man->last->child;
+		else
+			man->last = man->last->next;
+	}
+
+	man->last = n;
+	man->next = ROFF_NEXT_SIBLING;
+	switch (n->type) {
+	case ROFFT_TEXT:
+		check_text(man, n);
+		break;
+	case ROFFT_ROOT:
+		check_root(man, n);
+		break;
+	case ROFFT_EQN:
+	case ROFFT_TBL:
+		break;
+	default:
+		if (n->tok < ROFF_MAX) {
+			switch (n->tok) {
+			case ROFF_br:
+			case ROFF_sp:
+				post_vs(man, n);
+				break;
+			default:
+				roff_validate(man);
+				break;
+			}
+			break;
+		}
+		assert(n->tok >= MAN_TH && n->tok < MAN_MAX);
+		cp = man_valids + n->tok;
+		if (*cp)
+			(*cp)(man, n);
+		if (man->last == n)
+			man_state(man, n);
+		break;
+	}
+}
+
+static void
+check_root(CHKARGS)
+{
+
+	assert((man->flags & (MAN_BLINE | MAN_ELINE)) == 0);
+
+	if (NULL == man->first->child)
+		mandoc_msg(MANDOCERR_DOC_EMPTY, man->parse,
+		    n->line, n->pos, NULL);
+	else
+		man->meta.hasbody = 1;
+
+	if (NULL == man->meta.title) {
+		mandoc_msg(MANDOCERR_TH_NOTITLE, man->parse,
+		    n->line, n->pos, NULL);
+
+		/*
+		 * If a title hasn't been set, do so now (by
+		 * implication, date and section also aren't set).
+		 */
+
+		man->meta.title = mandoc_strdup("");
+		man->meta.msec = mandoc_strdup("");
+		man->meta.date = man->quick ? mandoc_strdup("") :
+		    mandoc_normdate(man, NULL, n->line, n->pos);
+	}
+
+	if (man->meta.os_e &&
+	    (man->meta.rcsids & (1 << man->meta.os_e)) == 0)
+		mandoc_msg(MANDOCERR_RCS_MISSING, man->parse, 0, 0,
+		    man->meta.os_e == MANDOC_OS_OPENBSD ?
+		    "(OpenBSD)" : "(NetBSD)");
+}
+
+static void
+check_text(CHKARGS)
+{
+	char		*cp, *p;
+
+	if (MAN_LITERAL & man->flags)
+		return;
+
+	cp = n->string;
+	for (p = cp; NULL != (p = strchr(p, '\t')); p++)
+		mandoc_msg(MANDOCERR_FI_TAB, man->parse,
+		    n->line, n->pos + (p - cp), NULL);
+}
+
+static void
+post_OP(CHKARGS)
+{
+
+	if (n->child == NULL)
+		mandoc_msg(MANDOCERR_OP_EMPTY, man->parse,
+		    n->line, n->pos, "OP");
+	else if (n->child->next != NULL && n->child->next->next != NULL) {
+		n = n->child->next->next;
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
+		    n->line, n->pos, "OP ... %s", n->string);
+	}
+}
+
+static void
+post_UR(CHKARGS)
+{
+	if (n->type == ROFFT_HEAD && n->child == NULL)
+		mandoc_msg(MANDOCERR_UR_NOHEAD, man->parse,
+		    n->line, n->pos, roff_name[n->tok]);
+	check_part(man, n);
+}
+
+static void
+check_part(CHKARGS)
+{
+
+	if (n->type == ROFFT_BODY && n->child == NULL)
+		mandoc_msg(MANDOCERR_BLK_EMPTY, man->parse,
+		    n->line, n->pos, roff_name[n->tok]);
+}
+
+static void
+check_par(CHKARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		if (n->body->child == NULL)
+			roff_node_delete(man, n);
+		break;
+	case ROFFT_BODY:
+		if (n->child == NULL)
+			mandoc_vmsg(MANDOCERR_PAR_SKIP,
+			    man->parse, n->line, n->pos,
+			    "%s empty", roff_name[n->tok]);
+		break;
+	case ROFFT_HEAD:
+		if (n->child != NULL)
+			mandoc_vmsg(MANDOCERR_ARG_SKIP,
+			    man->parse, n->line, n->pos, "%s %s%s",
+			    roff_name[n->tok], n->child->string,
+			    n->child->next != NULL ? " ..." : "");
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+post_IP(CHKARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		if (n->head->child == NULL && n->body->child == NULL)
+			roff_node_delete(man, n);
+		break;
+	case ROFFT_BODY:
+		if (n->parent->head->child == NULL && n->child == NULL)
+			mandoc_vmsg(MANDOCERR_PAR_SKIP,
+			    man->parse, n->line, n->pos,
+			    "%s empty", roff_name[n->tok]);
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+post_TH(CHKARGS)
+{
+	struct roff_node *nb;
+	const char	*p;
+
+	free(man->meta.title);
+	free(man->meta.vol);
+	free(man->meta.os);
+	free(man->meta.msec);
+	free(man->meta.date);
+
+	man->meta.title = man->meta.vol = man->meta.date =
+	    man->meta.msec = man->meta.os = NULL;
+
+	nb = n;
+
+	/* ->TITLE<- MSEC DATE OS VOL */
+
+	n = n->child;
+	if (n && n->string) {
+		for (p = n->string; '\0' != *p; p++) {
+			/* Only warn about this once... */
+			if (isalpha((unsigned char)*p) &&
+			    ! isupper((unsigned char)*p)) {
+				mandoc_vmsg(MANDOCERR_TITLE_CASE,
+				    man->parse, n->line,
+				    n->pos + (p - n->string),
+				    "TH %s", n->string);
+				break;
+			}
+		}
+		man->meta.title = mandoc_strdup(n->string);
+	} else {
+		man->meta.title = mandoc_strdup("");
+		mandoc_msg(MANDOCERR_TH_NOTITLE, man->parse,
+		    nb->line, nb->pos, "TH");
+	}
+
+	/* TITLE ->MSEC<- DATE OS VOL */
+
+	if (n)
+		n = n->next;
+	if (n && n->string)
+		man->meta.msec = mandoc_strdup(n->string);
+	else {
+		man->meta.msec = mandoc_strdup("");
+		mandoc_vmsg(MANDOCERR_MSEC_MISSING, man->parse,
+		    nb->line, nb->pos, "TH %s", man->meta.title);
+	}
+
+	/* TITLE MSEC ->DATE<- OS VOL */
+
+	if (n)
+		n = n->next;
+	if (n && n->string && '\0' != n->string[0]) {
+		man->meta.date = man->quick ?
+		    mandoc_strdup(n->string) :
+		    mandoc_normdate(man, n->string, n->line, n->pos);
+	} else {
+		man->meta.date = mandoc_strdup("");
+		mandoc_msg(MANDOCERR_DATE_MISSING, man->parse,
+		    n ? n->line : nb->line,
+		    n ? n->pos : nb->pos, "TH");
+	}
+
+	/* TITLE MSEC DATE ->OS<- VOL */
+
+	if (n && (n = n->next))
+		man->meta.os = mandoc_strdup(n->string);
+	else if (man->os_s != NULL)
+		man->meta.os = mandoc_strdup(man->os_s);
+	if (man->meta.os_e == MANDOC_OS_OTHER && man->meta.os != NULL) {
+		if (strstr(man->meta.os, "OpenBSD") != NULL)
+			man->meta.os_e = MANDOC_OS_OPENBSD;
+		else if (strstr(man->meta.os, "NetBSD") != NULL)
+			man->meta.os_e = MANDOC_OS_NETBSD;
+	}
+
+	/* TITLE MSEC DATE OS ->VOL<- */
+	/* If missing, use the default VOL name for MSEC. */
+
+	if (n && (n = n->next))
+		man->meta.vol = mandoc_strdup(n->string);
+	else if ('\0' != man->meta.msec[0] &&
+	    (NULL != (p = mandoc_a2msec(man->meta.msec))))
+		man->meta.vol = mandoc_strdup(p);
+
+	if (n != NULL && (n = n->next) != NULL)
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
+		    n->line, n->pos, "TH ... %s", n->string);
+
+	/*
+	 * Remove the `TH' node after we've processed it for our
+	 * meta-data.
+	 */
+	roff_node_delete(man, man->last);
+}
+
+static void
+post_UC(CHKARGS)
+{
+	static const char * const bsd_versions[] = {
+	    "3rd Berkeley Distribution",
+	    "4th Berkeley Distribution",
+	    "4.2 Berkeley Distribution",
+	    "4.3 Berkeley Distribution",
+	    "4.4 Berkeley Distribution",
+	};
+
+	const char	*p, *s;
+
+	n = n->child;
+
+	if (n == NULL || n->type != ROFFT_TEXT)
+		p = bsd_versions[0];
+	else {
+		s = n->string;
+		if (0 == strcmp(s, "3"))
+			p = bsd_versions[0];
+		else if (0 == strcmp(s, "4"))
+			p = bsd_versions[1];
+		else if (0 == strcmp(s, "5"))
+			p = bsd_versions[2];
+		else if (0 == strcmp(s, "6"))
+			p = bsd_versions[3];
+		else if (0 == strcmp(s, "7"))
+			p = bsd_versions[4];
+		else
+			p = bsd_versions[0];
+	}
+
+	free(man->meta.os);
+	man->meta.os = mandoc_strdup(p);
+}
+
+static void
+post_AT(CHKARGS)
+{
+	static const char * const unix_versions[] = {
+	    "7th Edition",
+	    "System III",
+	    "System V",
+	    "System V Release 2",
+	};
+
+	struct roff_node *nn;
+	const char	*p, *s;
+
+	n = n->child;
+
+	if (n == NULL || n->type != ROFFT_TEXT)
+		p = unix_versions[0];
+	else {
+		s = n->string;
+		if (0 == strcmp(s, "3"))
+			p = unix_versions[0];
+		else if (0 == strcmp(s, "4"))
+			p = unix_versions[1];
+		else if (0 == strcmp(s, "5")) {
+			nn = n->next;
+			if (nn != NULL &&
+			    nn->type == ROFFT_TEXT &&
+			    nn->string[0] != '\0')
+				p = unix_versions[3];
+			else
+				p = unix_versions[2];
+		} else
+			p = unix_versions[0];
+	}
+
+	free(man->meta.os);
+	man->meta.os = mandoc_strdup(p);
+}
+
+static void
+post_in(CHKARGS)
+{
+	char	*s;
+
+	if (n->parent->tok != MAN_TP ||
+	    n->parent->type != ROFFT_HEAD ||
+	    n->child == NULL ||
+	    *n->child->string == '+' ||
+	    *n->child->string == '-')
+		return;
+	mandoc_asprintf(&s, "+%s", n->child->string);
+	free(n->child->string);
+	n->child->string = s;
+}
+
+static void
+post_vs(CHKARGS)
+{
+
+	if (NULL != n->prev)
+		return;
+
+	switch (n->parent->tok) {
+	case MAN_SH:
+	case MAN_SS:
+	case MAN_PP:
+	case MAN_LP:
+	case MAN_P:
+		mandoc_vmsg(MANDOCERR_PAR_SKIP, man->parse, n->line, n->pos,
+		    "%s after %s", roff_name[n->tok],
+		    roff_name[n->parent->tok]);
+		/* FALLTHROUGH */
+	case TOKEN_NONE:
+		/*
+		 * Don't warn about this because it occurs in pod2man
+		 * and would cause considerable (unfixable) warnage.
+		 */
+		roff_node_delete(man, n);
+		break;
+	default:
+		break;
+	}
+}

Added: vendor/mandoc/dist/manconf.h
===================================================================
--- vendor/mandoc/dist/manconf.h	                        (rev 0)
+++ vendor/mandoc/dist/manconf.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,50 @@
+/*	$Id: manconf.h,v 1.5 2017/07/01 09:47:30 schwarze Exp $ */
+/*
+ * Copyright (c) 2011, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* List of unique, absolute paths to manual trees. */
+
+struct	manpaths {
+	char	**paths;
+	size_t	  sz;
+};
+
+/* Data from -O options and man.conf(5) output directives. */
+
+struct	manoutput {
+	char	 *includes;
+	char	 *man;
+	char	 *paper;
+	char	 *style;
+	size_t	  indent;
+	size_t	  width;
+	int	  fragment;
+	int	  mdoc;
+	int	  synopsisonly;
+	int	  noval;
+};
+
+struct	manconf {
+	struct manoutput	  output;
+	struct manpaths		  manpath;
+};
+
+
+void	 manconf_parse(struct manconf *, const char *, char *, char *);
+int	 manconf_output(struct manoutput *, const char *, int);
+void	 manconf_free(struct manconf *);
+void	 manpath_base(struct manpaths *);

Added: vendor/mandoc/dist/mandoc.1
===================================================================
--- vendor/mandoc/dist/mandoc.1	                        (rev 0)
+++ vendor/mandoc/dist/mandoc.1	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2140 @@
+.\"	$Id: mandoc.1,v 1.217 2017/07/20 15:26:41 schwarze Exp $
+.\"
+.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2012, 2014-2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 20 2017 $
+.Dt MANDOC 1
+.Os
+.Sh NAME
+.Nm mandoc
+.Nd format manual pages
+.Sh SYNOPSIS
+.Nm mandoc
+.Op Fl ac
+.Op Fl I Cm os Ns = Ns Ar name
+.Op Fl K Ar encoding
+.Op Fl mdoc | man
+.Op Fl O Ar options
+.Op Fl T Ar output
+.Op Fl W Ar level
+.Op Ar
+.Sh DESCRIPTION
+The
+.Nm
+utility formats
+.Ux
+manual pages for display.
+.Pp
+By default,
+.Nm
+reads
+.Xr mdoc 7
+or
+.Xr man 7
+text from stdin and produces
+.Fl T Cm locale
+output.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl a
+If the standard output is a terminal device and
+.Fl c
+is not specified, use
+.Xr more 1
+to paginate the output, just like
+.Xr man 1
+would.
+.It Fl c
+Copy the formatted manual pages to the standard output without using
+.Xr more 1
+to paginate them.
+This is the default.
+It can be specified to override
+.Fl a .
+.It Fl I Cm os Ns = Ns Ar name
+Override the default operating system
+.Ar name
+for the
+.Xr mdoc 7
+.Ic \&Os
+and for the
+.Xr man 7
+.Ic \&TH
+macro.
+.It Fl K Ar encoding
+Specify the input encoding.
+The supported
+.Ar encoding
+arguments are
+.Cm us-ascii ,
+.Cm iso-8859-1 ,
+and
+.Cm utf-8 .
+If not specified, autodetection uses the first match in the following
+list:
+.Bl -enum
+.It
+If the first three bytes of the input file are the UTF-8 byte order
+mark (BOM, 0xefbbbf), input is interpreted as
+.Cm utf-8 .
+.It
+If the first or second line of the input file matches the
+.Sy emacs
+mode line format
+.Pp
+.D1 .\e" -*- Oo ...; Oc coding: Ar encoding ; No -*-
+.Pp
+then input is interpreted according to
+.Ar encoding .
+.It
+If the first non-ASCII byte in the file introduces a valid UTF-8
+sequence, input is interpreted as
+.Cm utf-8 .
+.It
+Otherwise, input is interpreted as
+.Cm iso-8859-1 .
+.El
+.It Fl mdoc | man
+With
+.Fl mdoc ,
+all input files are interpreted as
+.Xr mdoc 7 .
+With
+.Fl man ,
+all input files are interpreted as
+.Xr man 7 .
+By default, the input language is automatically detected for each file:
+if the the first macro is
+.Ic \&Dd
+or
+.Ic \&Dt ,
+the
+.Xr mdoc 7
+parser is used; otherwise, the
+.Xr man 7
+parser is used.
+With other arguments,
+.Fl m
+is silently ignored.
+.It Fl O Ar options
+Comma-separated output options.
+.It Fl T Ar output
+Output format.
+See
+.Sx Output Formats
+for available formats.
+Defaults to
+.Fl T Cm locale .
+.It Fl W Ar level
+Specify the minimum message
+.Ar level
+to be reported on the standard error output and to affect the exit status.
+The
+.Ar level
+can be
+.Cm base ,
+.Cm style ,
+.Cm warning ,
+.Cm error ,
+or
+.Cm unsupp .
+The
+.Cm base
+level automatically derives the operating system from the contents of the
+.Ic \&Os
+macro, from the
+.Fl Ios
+command line option, or from the
+.Xr uname 3
+return value.
+The levels
+.Cm openbsd
+and
+.Cm netbsd
+are variants of
+.Cm base
+that bypass autodetection and request validation of base system
+conventions for a particular operating system.
+The level
+.Cm all
+is an alias for
+.Cm base .
+By default,
+.Nm
+is silent.
+See
+.Sx EXIT STATUS
+and
+.Sx DIAGNOSTICS
+for details.
+.Pp
+The special option
+.Fl W Cm stop
+tells
+.Nm
+to exit after parsing a file that causes warnings or errors of at least
+the requested level.
+No formatted output will be produced from that file.
+If both a
+.Ar level
+and
+.Cm stop
+are requested, they can be joined with a comma, for example
+.Fl W Cm error , Ns Cm stop .
+.It Ar file
+Read input from zero or more files.
+If unspecified, reads from stdin.
+If multiple files are specified,
+.Nm
+will halt with the first failed parse.
+.El
+.Pp
+The options
+.Fl fhklw
+are also supported and are documented in man(1).
+In
+.Fl f
+and
+.Fl k
+mode,
+.Nm
+also supports the options
+.Fl CMmOSs
+described in the
+.Xr apropos 1
+manual.
+The options
+.Fl fkl
+are mutually exclusive and override each other.
+.Ss Output Formats
+The
+.Nm
+utility accepts the following
+.Fl T
+arguments, which correspond to output modes:
+.Bl -tag -width "-T markdown"
+.It Fl T Cm ascii
+Produce 7-bit ASCII output.
+See
+.Sx ASCII Output .
+.It Fl T Cm html
+Produce HTML5, CSS1, and MathML output.
+See
+.Sx HTML Output .
+.It Fl T Cm lint
+Parse only: produce no output.
+Implies
+.Fl W Cm all
+and redirects parser messages, which usually appear
+on standard error output, to standard output.
+.It Fl T Cm locale
+Encode output using the current locale.
+This is the default.
+See
+.Sx Locale Output .
+.It Fl T Cm man
+Produce
+.Xr man 7
+format output.
+See
+.Sx Man Output .
+.It Fl T Cm markdown
+Produce output in
+.Sy markdown
+format.
+See
+.Sx Markdown Output .
+.It Fl T Cm pdf
+Produce PDF output.
+See
+.Sx PDF Output .
+.It Fl T Cm ps
+Produce PostScript output.
+See
+.Sx PostScript Output .
+.It Fl T Cm tree
+Produce an indented parse tree.
+See
+.Sx Syntax tree output .
+.It Fl T Cm utf8
+Encode output in the UTF\-8 multi-byte format.
+See
+.Sx UTF\-8 Output .
+.El
+.Pp
+If multiple input files are specified, these will be processed by the
+corresponding filter in-order.
+.Ss ASCII Output
+Output produced by
+.Fl T Cm ascii
+is rendered in standard 7-bit ASCII documented in
+.Xr ascii 7 .
+.Pp
+Font styles are applied by using back-spaced encoding such that an
+underlined character
+.Sq c
+is rendered as
+.Sq _ Ns \e[bs] Ns c ,
+where
+.Sq \e[bs]
+is the back-space character number 8.
+Emboldened characters are rendered as
+.Sq c Ns \e[bs] Ns c .
+.Pp
+The special characters documented in
+.Xr mandoc_char 7
+are rendered best-effort in an ASCII equivalent.
+.Pp
+Output width is limited to 78 visible columns unless literal input lines
+exceed this limit.
+.Pp
+The following
+.Fl O
+arguments are accepted:
+.Bl -tag -width Ds
+.It Cm indent Ns = Ns Ar indent
+The left margin for normal text is set to
+.Ar indent
+blank characters instead of the default of five for
+.Xr mdoc 7
+and seven for
+.Xr man 7 .
+Increasing this is not recommended; it may result in degraded formatting,
+for example overfull lines or ugly line breaks.
+.It Cm width Ns = Ns Ar width
+The output width is set to
+.Ar width .
+.El
+.Ss HTML Output
+Output produced by
+.Fl T Cm html
+conforms to HTML5 using optional self-closing tags.
+Default styles use only CSS1.
+Equations rendered from
+.Xr eqn 7
+blocks use MathML.
+.Pp
+The
+.Pa mandoc.css
+file documents style-sheet classes available for customising output.
+If a style-sheet is not specified with
+.Fl O Cm style ,
+.Fl T Cm html
+defaults to simple output (via an embedded style-sheet)
+readable in any graphical or text-based web
+browser.
+.Pp
+Special characters are rendered in decimal-encoded UTF\-8.
+.Pp
+The following
+.Fl O
+arguments are accepted:
+.Bl -tag -width Ds
+.It Cm fragment
+Omit the <!DOCTYPE> declaration and the <html>, <head>, and <body>
+elements and only emit the subtree below the <body> element.
+The
+.Cm style
+argument will be ignored.
+This is useful when embedding manual content within existing documents.
+.It Cm includes Ns = Ns Ar fmt
+The string
+.Ar fmt ,
+for example,
+.Ar ../src/%I.html ,
+is used as a template for linked header files (usually via the
+.Ic \&In
+macro).
+Instances of
+.Sq \&%I
+are replaced with the include filename.
+The default is not to present a
+hyperlink.
+.It Cm man Ns = Ns Ar fmt
+The string
+.Ar fmt ,
+for example,
+.Ar ../html%S/%N.%S.html ,
+is used as a template for linked manuals (usually via the
+.Ic \&Xr
+macro).
+Instances of
+.Sq \&%N
+and
+.Sq %S
+are replaced with the linked manual's name and section, respectively.
+If no section is included, section 1 is assumed.
+The default is not to
+present a hyperlink.
+.It Cm style Ns = Ns Ar style.css
+The file
+.Ar style.css
+is used for an external style-sheet.
+This must be a valid absolute or
+relative URI.
+.El
+.Ss Locale Output
+Locale-depending output encoding is triggered with
+.Fl T Cm locale .
+This is the default.
+.Pp
+This option is not available on all systems: systems without locale
+support, or those whose internal representation is not natively UCS-4,
+will fall back to
+.Fl T Cm ascii .
+See
+.Sx ASCII Output
+for font style specification and available command-line arguments.
+.Ss Man Output
+Translate input format into
+.Xr man 7
+output format.
+This is useful for distributing manual sources to legacy systems
+lacking
+.Xr mdoc 7
+formatters.
+.Pp
+If
+.Xr mdoc 7
+is passed as input, it is translated into
+.Xr man 7 .
+If the input format is
+.Xr man 7 ,
+the input is copied to the output, expanding any
+.Xr roff 7
+.Ic so
+requests.
+The parser is also run, and as usual, the
+.Fl W
+level controls which
+.Sx DIAGNOSTICS
+are displayed before copying the input to the output.
+.Ss Markdown Output
+Translate
+.Xr mdoc 7
+input to the
+.Sy markdown
+format conforming to
+.Lk http://daringfireball.net/projects/markdown/syntax.text\
+ "John Gruber's 2004 specification" .
+The output also almost conforms to the
+.Lk http://commonmark.org/ CommonMark
+specification.
+.Pp
+The character set used for the markdown output is ASCII.
+Non-ASCII characters are encoded as HTML entities.
+Since that is not possible in literal font contexts, because these
+are rendered as code spans and code blocks in the markdown output,
+non-ASCII characters are transliterated to ASCII approximations in
+these contexts.
+.Pp
+Markdown is a very weak markup language, so all semantic markup is
+lost, and even part of the presentational markup may be lost.
+Do not use this as an intermediate step in converting to HTML;
+instead, use
+.Fl T Cm html
+directly.
+.Pp
+The
+.Xr man 7 ,
+.Xr tbl 7 ,
+and
+.Xr eqn 7
+input languages are not supported by
+.Fl T Cm markdown
+output mode.
+.Ss PDF Output
+PDF-1.1 output may be generated by
+.Fl T Cm pdf .
+See
+.Sx PostScript Output
+for
+.Fl O
+arguments and defaults.
+.Ss PostScript Output
+PostScript
+.Qq Adobe-3.0
+Level-2 pages may be generated by
+.Fl T Cm ps .
+Output pages default to letter sized and are rendered in the Times font
+family, 11-point.
+Margins are calculated as 1/9 the page length and width.
+Line-height is 1.4m.
+.Pp
+Special characters are rendered as in
+.Sx ASCII Output .
+.Pp
+The following
+.Fl O
+arguments are accepted:
+.Bl -tag -width Ds
+.It Cm paper Ns = Ns Ar name
+The paper size
+.Ar name
+may be one of
+.Ar a3 ,
+.Ar a4 ,
+.Ar a5 ,
+.Ar legal ,
+or
+.Ar letter .
+You may also manually specify dimensions as
+.Ar NNxNN ,
+width by height in millimetres.
+If an unknown value is encountered,
+.Ar letter
+is used.
+.El
+.Ss UTF\-8 Output
+Use
+.Fl T Cm utf8
+to force a UTF\-8 locale.
+See
+.Sx Locale Output
+for details and options.
+.Ss Syntax tree output
+Use
+.Fl T Cm tree
+to show a human readable representation of the syntax tree.
+It is useful for debugging the source code of manual pages.
+The exact format is subject to change, so don't write parsers for it.
+.Pp
+The first paragraph shows meta data found in the
+.Xr mdoc 7
+prologue, on the
+.Xr man 7
+.Ic \&TH
+line, or the fallbacks used.
+.Pp
+In the tree dump, each output line shows one syntax tree node.
+Child nodes are indented with respect to their parent node.
+The columns are:
+.Pp
+.Bl -enum -compact
+.It
+For macro nodes, the macro name; for text and
+.Xr tbl 7
+nodes, the content.
+There is a special format for
+.Xr eqn 7
+nodes.
+.It
+Node type (text, elem, block, head, body, body-end, tail, tbl, eqn).
+.It
+Flags:
+.Bl -dash -compact
+.It
+An opening parenthesis if the node is an opening delimiter.
+.It
+An asterisk if the node starts a new input line.
+.It
+The input line number (starting at one).
+.It
+A colon.
+.It
+The input column number (starting at one).
+.It
+A closing parenthesis if the node is a closing delimiter.
+.It
+A full stop if the node ends a sentence.
+.It
+BROKEN if the node is a block broken by another block.
+.It
+NOSRC if the node is not in the input file,
+but automatically generated from macros.
+.It
+NOPRT if the node is not supposed to generate output
+for any output format.
+.El
+.El
+.Pp
+The following
+.Fl O
+argument is accepted:
+.Bl -tag -width Ds
+.It Cm noval
+Skip validation and show the unvalidated syntax tree.
+This can help to find out whether a given behaviour is caused by
+the parser or by the validator.
+Meta data is not available in this case.
+.El
+.Sh ENVIRONMENT
+.Bl -tag -width MANPAGER
+.It Ev MANPAGER
+Any non-empty value of the environment variable
+.Ev MANPAGER
+is used instead of the standard pagination program,
+.Xr more 1 ;
+see
+.Xr man 1
+for details.
+Only used if
+.Fl a
+or
+.Fl l
+is specified.
+.It Ev PAGER
+Specifies the pagination program to use when
+.Ev MANPAGER
+is not defined.
+If neither PAGER nor MANPAGER is defined,
+.Xr more 1
+.Fl s
+is used.
+Only used if
+.Fl a
+or
+.Fl l
+is specified.
+.El
+.Sh EXIT STATUS
+The
+.Nm
+utility exits with one of the following values, controlled by the message
+.Ar level
+associated with the
+.Fl W
+option:
+.Pp
+.Bl -tag -width Ds -compact
+.It 0
+No base system convention violations, style suggestions, warnings,
+or errors occurred, or those that did were ignored because they
+were lower than the requested
+.Ar level .
+.It 1
+At least one base system convention violation or style suggestion
+occurred, but no warning or error, and
+.Fl W Cm base
+or
+.Fl W Cm style
+was specified.
+.It 2
+At least one warning occurred, but no error, and
+.Fl W Cm warning
+or a lower
+.Ar level
+was requested.
+.It 3
+At least one parsing error occurred,
+but no unsupported feature was encountered, and
+.Fl W Cm error
+or a lower
+.Ar level
+was requested.
+.It 4
+At least one unsupported feature was encountered, and
+.Fl W Cm unsupp
+or a lower
+.Ar level
+was requested.
+.It 5
+Invalid command line arguments were specified.
+No input files have been read.
+.It 6
+An operating system error occurred, for example exhaustion
+of memory, file descriptors, or process table entries.
+Such errors cause
+.Nm
+to exit at once, possibly in the middle of parsing or formatting a file.
+.El
+.Pp
+Note that selecting
+.Fl T Cm lint
+output mode implies
+.Fl W Cm all .
+.Sh EXAMPLES
+To page manuals to the terminal:
+.Pp
+.Dl $ mandoc -l mandoc.1 man.1 apropos.1 makewhatis.8
+.Pp
+To produce HTML manuals with
+.Pa mandoc.css
+as the style-sheet:
+.Pp
+.Dl $ mandoc \-T html -O style=mandoc.css mdoc.7 \*(Gt mdoc.7.html
+.Pp
+To check over a large set of manuals:
+.Pp
+.Dl $ mandoc \-T lint \(gafind /usr/src -name \e*\e.[1-9]\(ga
+.Pp
+To produce a series of PostScript manuals for A4 paper:
+.Pp
+.Dl $ mandoc \-T ps \-O paper=a4 mdoc.7 man.7 \*(Gt manuals.ps
+.Pp
+Convert a modern
+.Xr mdoc 7
+manual to the older
+.Xr man 7
+format, for use on systems lacking an
+.Xr mdoc 7
+parser:
+.Pp
+.Dl $ mandoc \-T man foo.mdoc \*(Gt foo.man
+.Sh DIAGNOSTICS
+Messages displayed by
+.Nm
+follow this format:
+.Bd -ragged -offset indent
+.Nm :
+.Ar file : Ns Ar line : Ns Ar column : level : message : macro args
+.Pq Ar os
+.Ed
+.Pp
+Line and column numbers start at 1.
+Both are omitted for messages referring to an input file as a whole.
+Macro names and arguments are omitted where meaningless.
+The
+.Ar os
+operating system specifier is omitted for messages that are relevant
+for all operating systems.
+Fatal messages about invalid command line arguments
+or operating system errors, for example when memory is exhausted,
+may also omit the
+.Ar file
+and
+.Ar level
+fields.
+.Pp
+Message levels have the following meanings:
+.Bl -tag -width "warning"
+.It Cm unsupp
+An input file uses unsupported low-level
+.Xr roff 7
+features.
+The output may be incomplete and/or misformatted,
+so using GNU troff instead of
+.Nm
+to process the file may be preferable.
+.It Cm error
+Indicates a risk of information loss or severe misformatting,
+in most cases caused by serious syntax errors.
+.It Cm warning
+Indicates a risk that the information shown or its formatting
+may mismatch the author's intent in minor ways.
+Additionally, syntax errors are classified at least as warnings,
+even if they do not usually cause misformatting.
+.It Cm style
+An input file uses dubious or discouraged style.
+This is not a complaint about the syntax, and probably neither
+formatting nor portability are in danger.
+While great care is taken to avoid false positives on the higher
+message levels, the
+.Cm style
+level tries to reduce the probability that issues go unnoticed,
+so it may occasionally issue bogus suggestions.
+Please use your good judgement to decide whether any particular
+.Cm style
+suggestion really justifies a change to the input file.
+.It Cm base
+A convertion used in the base system of a specific operating system
+is not adhered to.
+These are not markup mistakes, and neither the quality of formatting
+nor portability are in danger.
+Messages of the
+.Cm base
+level are printed with the more intuitive
+.Cm style
+.Ar level
+tag.
+.El
+.Pp
+Messages of the
+.Cm base ,
+.Cm style ,
+.Cm warning ,
+.Cm error ,
+and
+.Cm unsupp
+levels except those about non-existent or unreadable input files
+are hidden unless their level, or a lower level, is requested using a
+.Fl W
+option or
+.Fl T Cm lint
+output mode.
+.Pp
+As indicated below, all
+.Cm base
+and some
+.Cm style
+checks are only performed if a specific operating system name occurs
+in the arguments of the
+.Fl W
+command line option, of the
+.Ic \&Os
+macro, of the
+.Fl Ios
+command line option, or, if neither are present, in the return value
+of the
+.Xr uname 3
+function.
+.Ss Conventions for base system manuals
+.Bl -ohang
+.It Sy "Mdocdate found"
+.Pq mdoc , Nx
+The
+.Ic \&Dd
+macro uses CVS
+.Ic Mdocdate
+keyword substitution, which is not supported by the
+.Nx
+base system.
+Consider using the conventional
+.Dq "Month dd, yyyy"
+format instead.
+.It Sy "Mdocdate missing"
+.Pq mdoc , Ox
+The
+.Ic \&Dd
+macro does not use CVS
+.Ic Mdocdate
+keyword substitution, but using it is conventionally expected in the
+.Ox
+base system.
+.It Sy "unknown architecture"
+.Pq mdoc , Ox , Nx
+The third argument of the
+.Ic \&Dt
+macro does not match any of the architectures this operating system
+is running on.
+.It Sy "operating system explicitly specified"
+.Pq mdoc , Ox , Nx
+The
+.Ic \&Os
+macro has an argument.
+In the base system, it is conventionally left blank.
+.It Sy "RCS id missing"
+.Pq Ox , Nx
+The manual page lacks the comment line with the RCS identifier
+generated by CVS
+.Ic OpenBSD
+or
+.Ic NetBSD
+keyword substitution as conventionally used in these operating systems.
+.It Sy "referenced manual not found"
+.Pq mdoc
+An
+.Ic \&Xr
+macro references a manual page that is not found in the base system.
+The path to look for base system manuals is configurable at compile
+time and defaults to
+.Pa /usr/share/man : /usr/X11R6/man .
+.El
+.Ss Style suggestions
+.Bl -ohang
+.It Sy "legacy man(7) date format"
+.Pq mdoc
+The
+.Ic \&Dd
+macro uses the legacy
+.Xr man 7
+date format
+.Dq yyyy-dd-mm .
+Consider using the conventional
+.Xr mdoc 7
+date format
+.Dq "Month dd, yyyy"
+instead.
+.It Sy "lower case character in document title"
+.Pq mdoc , man
+The title is still used as given in the
+.Ic \&Dt
+or
+.Ic \&TH
+macro.
+.It Sy "duplicate RCS id"
+A single manual page contains two copies of the RCS identifier for
+the same operating system.
+Consider deleting the later instance and moving the first one up
+to the top of the page.
+.It Sy "typo in section name"
+.Pq mdoc
+Fuzzy string matching revealed that the argument of an
+.Ic \&Sh
+macro is similar, but not identical to a standard section name.
+.It Sy "unterminated quoted argument"
+.Pq roff
+Macro arguments can be enclosed in double quote characters
+such that space characters and macro names contained in the quoted
+argument need not be escaped.
+The closing quote of the last argument of a macro can be omitted.
+However, omitting it is not recommended because it makes the code
+harder to read.
+.It Sy "useless macro"
+.Pq mdoc
+A
+.Ic \&Bt ,
+.Ic \&Tn ,
+or
+.Ic \&Ud
+macro was found.
+Simply delete it: it serves no useful purpose.
+.It Sy "consider using OS macro"
+.Pq mdoc
+A string was found in plain text or in a
+.Ic \&Bx
+macro that could be represented using
+.Ic \&Ox ,
+.Ic \&Nx ,
+.Ic \&Fx ,
+or
+.Ic \&Dx .
+.It Sy "errnos out of order"
+.Pq mdoc, Nx
+The
+.Ic \&Er
+items in a
+.Ic \&Bl
+list are not in alphabetical order.
+.It Sy "duplicate errno"
+.Pq mdoc, Nx
+A
+.Ic \&Bl
+list contains two consecutive
+.Ic \&It
+entries describing the same
+.Ic \&Er
+number.
+.It Sy "trailing delimiter"
+.Pq mdoc
+The last argument of an
+.Ic \&Ex , \&Fo , \&Nd , \&Nm , \&Os , \&Sh , \&Ss , \&St ,
+or
+.Ic \&Sx
+macro ends with a trailing delimiter.
+This is usually bad style and often indicates typos.
+Most likely, the delimiter can be removed.
+.It Sy "no blank before trailing delimiter"
+.Pq mdoc
+The last argument of a macro that supports trailing delimiter
+arguments is longer than one byte and ends with a trailing delimiter.
+Consider inserting a blank such that the delimiter becomes a separate
+argument, thus moving it out of the scope of the macro.
+.It Sy "fill mode already enabled, skipping"
+.Pq man
+A
+.Ic \&fi
+request occurs even though the document is still in fill mode,
+or already switched back to fill mode.
+It has no effect.
+.It Sy "fill mode already disabled, skipping"
+.Pq man
+An
+.Ic \&nf
+request occurs even though the document already switched to no-fill mode
+and did not switch back to fill mode yet.
+It has no effect.
+.It Sy "function name without markup"
+.Pq mdoc
+A word followed by an empty pair of parentheses occurs on a text line.
+Consider using an
+.Ic \&Fn
+or
+.Ic \&Xr
+macro.
+.It Sy "whitespace at end of input line"
+.Pq mdoc , man , roff
+Whitespace at the end of input lines is almost never semantically
+significant \(em but in the odd case where it might be, it is
+extremely confusing when reviewing and maintaining documents.
+.It Sy "bad comment style"
+.Pq roff
+Comment lines start with a dot, a backslash, and a double-quote character.
+The
+.Nm
+utility treats the line as a comment line even without the backslash,
+but leaving out the backslash might not be portable.
+.El
+.Ss Warnings related to the document prologue
+.Bl -ohang
+.It Sy "missing manual title, using UNTITLED"
+.Pq mdoc
+A
+.Ic \&Dt
+macro has no arguments, or there is no
+.Ic \&Dt
+macro before the first non-prologue macro.
+.It Sy "missing manual title, using \(dq\(dq"
+.Pq man
+There is no
+.Ic \&TH
+macro, or it has no arguments.
+.It Sy "missing manual section, using \(dq\(dq"
+.Pq mdoc , man
+A
+.Ic \&Dt
+or
+.Ic \&TH
+macro lacks the mandatory section argument.
+.It Sy "unknown manual section"
+.Pq mdoc
+The section number in a
+.Ic \&Dt
+line is invalid, but still used.
+.It Sy "missing date, using today's date"
+.Pq mdoc, man
+The document was parsed as
+.Xr mdoc 7
+and it has no
+.Ic \&Dd
+macro, or the
+.Ic \&Dd
+macro has no arguments or only empty arguments;
+or the document was parsed as
+.Xr man 7
+and it has no
+.Ic \&TH
+macro, or the
+.Ic \&TH
+macro has less than three arguments or its third argument is empty.
+.It Sy "cannot parse date, using it verbatim"
+.Pq mdoc , man
+The date given in a
+.Ic \&Dd
+or
+.Ic \&TH
+macro does not follow the conventional format.
+.It Sy "date in the future, using it anyway"
+.Pq mdoc , man
+The date given in a
+.Ic \&Dd
+or
+.Ic \&TH
+macro is more than a day ahead of the current system
+.Xr time 3 .
+.It Sy "missing Os macro, using \(dq\(dq"
+.Pq mdoc
+The default or current system is not shown in this case.
+.It Sy "late prologue macro"
+.Pq mdoc
+A
+.Ic \&Dd
+or
+.Ic \&Os
+macro occurs after some non-prologue macro, but still takes effect.
+.It Sy "prologue macros out of order"
+.Pq mdoc
+The prologue macros are not given in the conventional order
+.Ic \&Dd ,
+.Ic \&Dt ,
+.Ic \&Os .
+All three macros are used even when given in another order.
+.El
+.Ss Warnings regarding document structure
+.Bl -ohang
+.It Sy ".so is fragile, better use ln(1)"
+.Pq roff
+Including files only works when the parser program runs with the correct
+current working directory.
+.It Sy "no document body"
+.Pq mdoc , man
+The document body contains neither text nor macros.
+An empty document is shown, consisting only of a header and a footer line.
+.It Sy "content before first section header"
+.Pq mdoc , man
+Some macros or text precede the first
+.Ic \&Sh
+or
+.Ic \&SH
+section header.
+The offending macros and text are parsed and added to the top level
+of the syntax tree, outside any section block.
+.It Sy "first section is not NAME"
+.Pq mdoc
+The argument of the first
+.Ic \&Sh
+macro is not
+.Sq NAME .
+This may confuse
+.Xr makewhatis 8
+and
+.Xr apropos 1 .
+.It Sy "NAME section without Nm before Nd"
+.Pq mdoc
+The NAME section does not contain any
+.Ic \&Nm
+child macro before the first
+.Ic \&Nd
+macro.
+.It Sy "NAME section without description"
+.Pq mdoc
+The NAME section lacks the mandatory
+.Ic \&Nd
+child macro.
+.It Sy "description not at the end of NAME"
+.Pq mdoc
+The NAME section does contain an
+.Ic \&Nd
+child macro, but other content follows it.
+.It Sy "bad NAME section content"
+.Pq mdoc
+The NAME section contains plain text or macros other than
+.Ic \&Nm
+and
+.Ic \&Nd .
+.It Sy "missing comma before name"
+.Pq mdoc
+The NAME section contains an
+.Ic \&Nm
+macro that is neither the first one nor preceded by a comma.
+.It Sy "missing description line, using \(dq\(dq"
+.Pq mdoc
+The
+.Ic \&Nd
+macro lacks the required argument.
+The title line of the manual will end after the dash.
+.It Sy "description line outside NAME section"
+.Pq mdoc
+An
+.Ic \&Nd
+macro appears outside the NAME section.
+The arguments are printed anyway and the following text is used for
+.Xr apropos 1 ,
+but none of that behaviour is portable.
+.It Sy "sections out of conventional order"
+.Pq mdoc
+A standard section occurs after another section it usually precedes.
+All section titles are used as given,
+and the order of sections is not changed.
+.It Sy "duplicate section title"
+.Pq mdoc
+The same standard section title occurs more than once.
+.It Sy "unexpected section"
+.Pq mdoc
+A standard section header occurs in a section of the manual
+where it normally isn't useful.
+.It Sy "cross reference to self"
+.Pq mdoc
+An
+.Ic \&Xr
+macro refers to a name and section matching the section of the present
+manual page and a name mentioned in an
+.Ic \&Nm
+macro in the NAME or SYNOPSIS section, or in an
+.Ic \&Fn
+or
+.Ic \&Fo
+macro in the SYNOPSIS.
+Consider using
+.Ic \&Nm
+or
+.Ic \&Fn
+instead of
+.Ic \&Xr .
+.It Sy "unusual Xr order"
+.Pq mdoc
+In the SEE ALSO section, an
+.Ic \&Xr
+macro with a lower section number follows one with a higher number,
+or two
+.Ic \&Xr
+macros referring to the same section are out of alphabetical order.
+.It Sy "unusual Xr punctuation"
+.Pq mdoc
+In the SEE ALSO section, punctuation between two
+.Ic \&Xr
+macros differs from a single comma, or there is trailing punctuation
+after the last
+.Ic \&Xr
+macro.
+.It Sy "AUTHORS section without An macro"
+.Pq mdoc
+An AUTHORS sections contains no
+.Ic \&An
+macros, or only empty ones.
+Probably, there are author names lacking markup.
+.El
+.Ss "Warnings related to macros and nesting"
+.Bl -ohang
+.It Sy "obsolete macro"
+.Pq mdoc
+See the
+.Xr mdoc 7
+manual for replacements.
+.It Sy "macro neither callable nor escaped"
+.Pq mdoc
+The name of a macro that is not callable appears on a macro line.
+It is printed verbatim.
+If the intention is to call it, move it to its own input line;
+otherwise, escape it by prepending
+.Sq \e& .
+.It Sy "skipping paragraph macro"
+In
+.Xr mdoc 7
+documents, this happens
+.Bl -dash -compact
+.It
+at the beginning and end of sections and subsections
+.It
+right before non-compact lists and displays
+.It
+at the end of items in non-column, non-compact lists
+.It
+and for multiple consecutive paragraph macros.
+.El
+In
+.Xr man 7
+documents, it happens
+.Bl -dash -compact
+.It
+for empty
+.Ic \&P ,
+.Ic \&PP ,
+and
+.Ic \&LP
+macros
+.It
+for
+.Ic \&IP
+macros having neither head nor body arguments
+.It
+for
+.Ic \&br
+or
+.Ic \&sp
+right after
+.Ic \&SH
+or
+.Ic \&SS
+.El
+.It Sy "moving paragraph macro out of list"
+.Pq mdoc
+A list item in a
+.Ic \&Bl
+list contains a trailing paragraph macro.
+The paragraph macro is moved after the end of the list.
+.It Sy "skipping no-space macro"
+.Pq mdoc
+An input line begins with an
+.Ic \&Ns
+macro, or the next argument after an
+.Ic \&Ns
+macro is an isolated closing delimiter.
+The macro is ignored.
+.It Sy "blocks badly nested"
+.Pq mdoc
+If two blocks intersect, one should completely contain the other.
+Otherwise, rendered output is likely to look strange in any output
+format, and rendering in SGML-based output formats is likely to be
+outright wrong because such languages do not support badly nested
+blocks at all.
+Typical examples of badly nested blocks are
+.Qq Ic \&Ao \&Bo \&Ac \&Bc
+and
+.Qq Ic \&Ao \&Bq \&Ac .
+In these examples,
+.Ic \&Ac
+breaks
+.Ic \&Bo
+and
+.Ic \&Bq ,
+respectively.
+.It Sy "nested displays are not portable"
+.Pq mdoc
+A
+.Ic \&Bd ,
+.Ic \&D1 ,
+or
+.Ic \&Dl
+display occurs nested inside another
+.Ic \&Bd
+display.
+This works with
+.Nm ,
+but fails with most other implementations.
+.It Sy "moving content out of list"
+.Pq mdoc
+A
+.Ic \&Bl
+list block contains text or macros before the first
+.Ic \&It
+macro.
+The offending children are moved before the beginning of the list.
+.It Sy "first macro on line"
+Inside a
+.Ic \&Bl Fl column
+list, a
+.Ic \&Ta
+macro occurs as the first macro on a line, which is not portable.
+.It Sy "line scope broken"
+.Pq man
+While parsing the next-line scope of the previous macro,
+another macro is found that prematurely terminates the previous one.
+The previous, interrupted macro is deleted from the parse tree.
+.El
+.Ss "Warnings related to missing arguments"
+.Bl -ohang
+.It Sy "skipping empty request"
+.Pq roff , eqn
+The macro name is missing from a macro definition request,
+or an
+.Xr eqn 7
+control statement or operation keyword lacks its required argument.
+.It Sy "conditional request controls empty scope"
+.Pq roff
+A conditional request is only useful if any of the following
+follows it on the same logical input line:
+.Bl -dash -compact
+.It
+The
+.Sq \e{
+keyword to open a multi-line scope.
+.It
+A request or macro or some text, resulting in a single-line scope.
+.It
+The immediate end of the logical line without any intervening whitespace,
+resulting in next-line scope.
+.El
+Here, a conditional request is followed by trailing whitespace only,
+and there is no other content on its logical input line.
+Note that it doesn't matter whether the logical input line is split
+across multiple physical input lines using
+.Sq \e
+line continuation characters.
+This is one of the rare cases
+where trailing whitespace is syntactically significant.
+The conditional request controls a scope containing whitespace only,
+so it is unlikely to have a significant effect,
+except that it may control a following
+.Ic \&el
+clause.
+.It Sy "skipping empty macro"
+.Pq mdoc
+The indicated macro has no arguments and hence no effect.
+.It Sy "empty block"
+.Pq mdoc , man
+A
+.Ic \&Bd ,
+.Ic \&Bk ,
+.Ic \&Bl ,
+.Ic \&D1 ,
+.Ic \&Dl ,
+.Ic \&MT ,
+.Ic \&RS ,
+or
+.Ic \&UR
+block contains nothing in its body and will produce no output.
+.It Sy "empty argument, using 0n"
+.Pq mdoc
+The required width is missing after
+.Ic \&Bd
+or
+.Ic \&Bl
+.Fl offset
+or
+.Fl width .
+.It Sy "missing display type, using -ragged"
+.Pq mdoc
+The
+.Ic \&Bd
+macro is invoked without the required display type.
+.It Sy "list type is not the first argument"
+.Pq mdoc
+In a
+.Ic \&Bl
+macro, at least one other argument precedes the type argument.
+The
+.Nm
+utility copes with any argument order, but some other
+.Xr mdoc 7
+implementations do not.
+.It Sy "missing -width in -tag list, using 8n"
+.Pq mdoc
+Every
+.Ic \&Bl
+macro having the
+.Fl tag
+argument requires
+.Fl width ,
+too.
+.It Sy "missing utility name, using \(dq\(dq"
+.Pq mdoc
+The
+.Ic \&Ex Fl std
+macro is called without an argument before
+.Ic \&Nm
+has first been called with an argument.
+.It Sy "missing function name, using \(dq\(dq"
+.Pq mdoc
+The
+.Ic \&Fo
+macro is called without an argument.
+No function name is printed.
+.It Sy "empty head in list item"
+.Pq mdoc
+In a
+.Ic \&Bl
+.Fl diag ,
+.Fl hang ,
+.Fl inset ,
+.Fl ohang ,
+or
+.Fl tag
+list, an
+.Ic \&It
+macro lacks the required argument.
+The item head is left empty.
+.It Sy "empty list item"
+.Pq mdoc
+In a
+.Ic \&Bl
+.Fl bullet ,
+.Fl dash ,
+.Fl enum ,
+or
+.Fl hyphen
+list, an
+.Ic \&It
+block is empty.
+An empty list item is shown.
+.It Sy "missing argument, using next line"
+.Pq mdoc
+An
+.Ic \&It
+macro in a
+.Ic \&Bd Fl column
+list has no arguments.
+While
+.Nm
+uses the text or macros of the following line, if any, for the cell,
+other formatters may misformat the list.
+.It Sy "missing font type, using \efR"
+.Pq mdoc
+A
+.Ic \&Bf
+macro has no argument.
+It switches to the default font.
+.It Sy "unknown font type, using \efR"
+.Pq mdoc
+The
+.Ic \&Bf
+argument is invalid.
+The default font is used instead.
+.It Sy "nothing follows prefix"
+.Pq mdoc
+A
+.Ic \&Pf
+macro has no argument, or only one argument and no macro follows
+on the same input line.
+This defeats its purpose; in particular, spacing is not suppressed
+before the text or macros following on the next input line.
+.It Sy "empty reference block"
+.Pq mdoc
+An
+.Ic \&Rs
+macro is immediately followed by an
+.Ic \&Re
+macro on the next input line.
+Such an empty block does not produce any output.
+.It Sy "missing section argument"
+.Pq mdoc
+An
+.Ic \&Xr
+macro lacks its second, section number argument.
+The first argument, i.e. the name, is printed, but without subsequent
+parentheses.
+.It Sy "missing -std argument, adding it"
+.Pq mdoc
+An
+.Ic \&Ex
+or
+.Ic \&Rv
+macro lacks the required
+.Fl std
+argument.
+The
+.Nm
+utility assumes
+.Fl std
+even when it is not specified, but other implementations may not.
+.It Sy "missing option string, using \(dq\(dq"
+.Pq man
+The
+.Ic \&OP
+macro is invoked without any argument.
+An empty pair of square brackets is shown.
+.It Sy "missing resource identifier, using \(dq\(dq"
+.Pq man
+The
+.Ic \&MT
+or
+.Ic \&UR
+macro is invoked without any argument.
+An empty pair of angle brackets is shown.
+.It Sy "missing eqn box, using \(dq\(dq"
+.Pq eqn
+A diacritic mark or a binary operator is found,
+but there is nothing to the left of it.
+An empty box is inserted.
+.El
+.Ss "Warnings related to bad macro arguments"
+.Bl -ohang
+.It Sy "duplicate argument"
+.Pq mdoc
+A
+.Ic \&Bd
+or
+.Ic \&Bl
+macro has more than one
+.Fl compact ,
+more than one
+.Fl offset ,
+or more than one
+.Fl width
+argument.
+All but the last instances of these arguments are ignored.
+.It Sy "skipping duplicate argument"
+.Pq mdoc
+An
+.Ic \&An
+macro has more than one
+.Fl split
+or
+.Fl nosplit
+argument.
+All but the first of these arguments are ignored.
+.It Sy "skipping duplicate display type"
+.Pq mdoc
+A
+.Ic \&Bd
+macro has more than one type argument; the first one is used.
+.It Sy "skipping duplicate list type"
+.Pq mdoc
+A
+.Ic \&Bl
+macro has more than one type argument; the first one is used.
+.It Sy "skipping -width argument"
+.Pq mdoc
+A
+.Ic \&Bl
+.Fl column ,
+.Fl diag ,
+.Fl ohang ,
+.Fl inset ,
+or
+.Fl item
+list has a
+.Fl width
+argument.
+That has no effect.
+.It Sy "wrong number of cells"
+In a line of a
+.Ic \&Bl Fl column
+list, the number of tabs or
+.Ic \&Ta
+macros is less than the number expected from the list header line
+or exceeds the expected number by more than one.
+Missing cells remain empty, and all cells exceeding the number of
+columns are joined into one single cell.
+.It Sy "unknown AT&T UNIX version"
+.Pq mdoc
+An
+.Ic \&At
+macro has an invalid argument.
+It is used verbatim, with
+.Qq "AT&T UNIX "
+prefixed to it.
+.It Sy "comma in function argument"
+.Pq mdoc
+An argument of an
+.Ic \&Fa
+or
+.Ic \&Fn
+macro contains a comma; it should probably be split into two arguments.
+.It Sy "parenthesis in function name"
+.Pq mdoc
+The first argument of an
+.Ic \&Fc
+or
+.Ic \&Fn
+macro contains an opening or closing parenthesis; that's probably wrong,
+parentheses are added automatically.
+.It Sy "unknown library name"
+.Pq mdoc, not on Ox
+An
+.Ic \&Lb
+macro has an unknown name argument and will be rendered as
+.Qq library Dq Ar name .
+.It Sy "invalid content in Rs block"
+.Pq mdoc
+An
+.Ic \&Rs
+block contains plain text or non-% macros.
+The bogus content is left in the syntax tree.
+Formatting may be poor.
+.It Sy "invalid Boolean argument"
+.Pq mdoc
+An
+.Ic \&Sm
+macro has an argument other than
+.Cm on
+or
+.Cm off .
+The invalid argument is moved out of the macro, which leaves the macro
+empty, causing it to toggle the spacing mode.
+.It Sy "unknown font, skipping request"
+.Pq man , tbl
+A
+.Xr roff 7
+.Ic \&ft
+request or a
+.Xr tbl 7
+.Ic \&f
+layout modifier has an unknown
+.Ar font
+argument.
+.It Sy "odd number of characters in request"
+.Pq roff
+A
+.Ic \&tr
+request contains an odd number of characters.
+The last character is mapped to the blank character.
+.El
+.Ss "Warnings related to plain text"
+.Bl -ohang
+.It Sy "blank line in fill mode, using .sp"
+.Pq mdoc
+The meaning of blank input lines is only well-defined in non-fill mode:
+In fill mode, line breaks of text input lines are not supposed to be
+significant.
+However, for compatibility with groff, blank lines in fill mode
+are replaced with
+.Ic \&sp
+requests.
+.It Sy "tab in filled text"
+.Pq mdoc , man
+The meaning of tab characters is only well-defined in non-fill mode:
+In fill mode, whitespace is not supposed to be significant
+on text input lines.
+As an implementation dependent choice, tab characters on text lines
+are passed through to the formatters in any case.
+Given that the text before the tab character will be filled,
+it is hard to predict which tab stop position the tab will advance to.
+.It Sy "new sentence, new line"
+.Pq mdoc
+A new sentence starts in the middle of a text line.
+Start it on a new input line to help formatters produce correct spacing.
+.It Sy "invalid escape sequence"
+.Pq roff
+An escape sequence has an invalid opening argument delimiter, lacks the
+closing argument delimiter, or the argument has too few characters.
+If the argument is incomplete,
+.Ic \e*
+and
+.Ic \en
+expand to an empty string,
+.Ic \eB
+to the digit
+.Sq 0 ,
+and
+.Ic \ew
+to the length of the incomplete argument.
+All other invalid escape sequences are ignored.
+.It Sy "undefined string, using \(dq\(dq"
+.Pq roff
+If a string is used without being defined before,
+its value is implicitly set to the empty string.
+However, defining strings explicitly before use
+keeps the code more readable.
+.El
+.Ss "Warnings related to tables"
+.Bl -ohang
+.It Sy "tbl line starts with span"
+.Pq tbl
+The first cell in a table layout line is a horizontal span
+.Pq Sq Cm s .
+Data provided for this cell is ignored, and nothing is printed in the cell.
+.It Sy "tbl column starts with span"
+.Pq tbl
+The first line of a table layout specification
+requests a vertical span
+.Pq Sq Cm ^ .
+Data provided for this cell is ignored, and nothing is printed in the cell.
+.It Sy "skipping vertical bar in tbl layout"
+.Pq tbl
+A table layout specification contains more than two consecutive vertical bars.
+A double bar is printed, all additional bars are discarded.
+.El
+.Ss "Errors related to tables"
+.Bl -ohang
+.It Sy "non-alphabetic character in tbl options"
+.Pq tbl
+The table options line contains a character other than a letter,
+blank, or comma where the beginning of an option name is expected.
+The character is ignored.
+.It Sy "skipping unknown tbl option"
+.Pq tbl
+The table options line contains a string of letters that does not
+match any known option name.
+The word is ignored.
+.It Sy "missing tbl option argument"
+.Pq tbl
+A table option that requires an argument is not followed by an
+opening parenthesis, or the opening parenthesis is immediately
+followed by a closing parenthesis.
+The option is ignored.
+.It Sy "wrong tbl option argument size"
+.Pq tbl
+A table option argument contains an invalid number of characters.
+Both the option and the argument are ignored.
+.It Sy "empty tbl layout"
+.Pq tbl
+A table layout specification is completely empty,
+specifying zero lines and zero columns.
+As a fallback, a single left-justified column is used.
+.It Sy "invalid character in tbl layout"
+.Pq tbl
+A table layout specification contains a character that can neither
+be interpreted as a layout key character nor as a layout modifier,
+or a modifier precedes the first key.
+The invalid character is discarded.
+.It Sy "unmatched parenthesis in tbl layout"
+.Pq tbl
+A table layout specification contains an opening parenthesis,
+but no matching closing parenthesis.
+The rest of the input line, starting from the parenthesis, has no effect.
+.It Sy "tbl without any data cells"
+.Pq tbl
+A table does not contain any data cells.
+It will probably produce no output.
+.It Sy "ignoring data in spanned tbl cell"
+.Pq tbl
+A table cell is marked as a horizontal span
+.Pq Sq Cm s
+or vertical span
+.Pq Sq Cm ^
+in the table layout, but it contains data.
+The data is ignored.
+.It Sy "ignoring extra tbl data cells"
+.Pq tbl
+A data line contains more cells than the corresponding layout line.
+The data in the extra cells is ignored.
+.It Sy "data block open at end of tbl"
+.Pq tbl
+A data block is opened with
+.Cm T{ ,
+but never closed with a matching
+.Cm T} .
+The remaining data lines of the table are all put into one cell,
+and any remaining cells stay empty.
+.El
+.Ss "Errors related to roff, mdoc, and man code"
+.Bl -ohang
+.It Sy "duplicate prologue macro"
+.Pq mdoc
+One of the prologue macros occurs more than once.
+The last instance overrides all previous ones.
+.It Sy "skipping late title macro"
+.Pq mdoc
+The
+.Ic \&Dt
+macro appears after the first non-prologue macro.
+Traditional formatters cannot handle this because
+they write the page header before parsing the document body.
+Even though this technical restriction does not apply to
+.Nm ,
+traditional semantics is preserved.
+The late macro is discarded including its arguments.
+.It Sy "input stack limit exceeded, infinite loop?"
+.Pq roff
+Explicit recursion limits are implemented for the following features,
+in order to prevent infinite loops:
+.Bl -dash -compact
+.It
+expansion of nested escape sequences
+including expansion of strings and number registers,
+.It
+expansion of nested user-defined macros,
+.It
+and
+.Ic \&so
+file inclusion.
+.El
+When a limit is hit, the output is incorrect, typically losing
+some content, but the parser can continue.
+.It Sy "skipping bad character"
+.Pq mdoc , man , roff
+The input file contains a byte that is not a printable
+.Xr ascii 7
+character.
+The message mentions the character number.
+The offending byte is replaced with a question mark
+.Pq Sq \&? .
+Consider editing the input file to replace the byte with an ASCII
+transliteration of the intended character.
+.It Sy "skipping unknown macro"
+.Pq mdoc , man , roff
+The first identifier on a request or macro line is neither recognized as a
+.Xr roff 7
+request, nor as a user-defined macro, nor, respectively, as an
+.Xr mdoc 7
+or
+.Xr man 7
+macro.
+It may be mistyped or unsupported.
+The request or macro is discarded including its arguments.
+.It Sy "skipping insecure request"
+.Pq roff
+An input file attempted to run a shell command
+or to read or write an external file.
+Such attempts are denied for security reasons.
+.It Sy "skipping item outside list"
+.Pq mdoc , eqn
+An
+.Ic \&It
+macro occurs outside any
+.Ic \&Bl
+list, or an
+.Xr eqn 7
+.Ic above
+delimiter occurs outside any pile.
+It is discarded including its arguments.
+.It Sy "skipping column outside column list"
+.Pq mdoc
+A
+.Ic \&Ta
+macro occurs outside any
+.Ic \&Bl Fl column
+block.
+It is discarded including its arguments.
+.It Sy "skipping end of block that is not open"
+.Pq mdoc , man , eqn , tbl , roff
+Various syntax elements can only be used to explicitly close blocks
+that have previously been opened.
+An
+.Xr mdoc 7
+block closing macro, a
+.Xr man 7
+.Ic \&ME , \&RE
+or
+.Ic \&UE
+macro, an
+.Xr eqn 7
+right delimiter or closing brace, or the end of an equation, table, or
+.Xr roff 7
+conditional request is encountered but no matching block is open.
+The offending request or macro is discarded.
+.It Sy "fewer RS blocks open, skipping"
+.Pq man
+The
+.Ic \&RE
+macro is invoked with an argument, but less than the specified number of
+.Ic \&RS
+blocks is open.
+The
+.Ic \&RE
+macro is discarded.
+.It Sy "inserting missing end of block"
+.Pq mdoc , tbl
+Various
+.Xr mdoc 7
+macros as well as tables require explicit closing by dedicated macros.
+A block that doesn't support bad nesting
+ends before all of its children are properly closed.
+The open child nodes are closed implicitly.
+.It Sy "appending missing end of block"
+.Pq mdoc , man , eqn , tbl , roff
+At the end of the document, an explicit
+.Xr mdoc 7
+block, a
+.Xr man 7
+next-line scope or
+.Ic \&MT , \&RS
+or
+.Ic \&UR
+block, an equation, table, or
+.Xr roff 7
+conditional or ignore block is still open.
+The open block is closed implicitly.
+.It Sy "escaped character not allowed in a name"
+.Pq roff
+Macro, string and register identifiers consist of printable,
+non-whitespace ASCII characters.
+Escape sequences and characters and strings expressed in terms of them
+cannot form part of a name.
+The first argument of an
+.Ic \&am ,
+.Ic \&as ,
+.Ic \&de ,
+.Ic \&ds ,
+.Ic \&nr ,
+or
+.Ic \&rr
+request, or any argument of an
+.Ic \&rm
+request, or the name of a request or user defined macro being called,
+is terminated by an escape sequence.
+In the cases of
+.Ic \&as ,
+.Ic \&ds ,
+and
+.Ic \&nr ,
+the request has no effect at all.
+In the cases of
+.Ic \&am ,
+.Ic \&de ,
+.Ic \&rr ,
+and
+.Ic \&rm ,
+what was parsed up to this point is used as the arguments to the request,
+and the rest of the input line is discarded including the escape sequence.
+When parsing for a request or a user-defined macro name to be called,
+only the escape sequence is discarded.
+The characters preceding it are used as the request or macro name,
+the characters following it are used as the arguments to the request or macro.
+.It Sy "NOT IMPLEMENTED: Bd -file"
+.Pq mdoc
+For security reasons, the
+.Ic \&Bd
+macro does not support the
+.Fl file
+argument.
+By requesting the inclusion of a sensitive file, a malicious document
+might otherwise trick a privileged user into inadvertently displaying
+the file on the screen, revealing the file content to bystanders.
+The argument is ignored including the file name following it.
+.It Sy "skipping display without arguments"
+.Pq mdoc
+A
+.Ic \&Bd
+block macro does not have any arguments.
+The block is discarded, and the block content is displayed in
+whatever mode was active before the block.
+.It Sy "missing list type, using -item"
+.Pq mdoc
+A
+.Ic \&Bl
+macro fails to specify the list type.
+.It Sy "argument is not numeric, using 1"
+.Pq roff
+The argument of a
+.Ic \&ce
+request is not a number.
+.It Sy "missing manual name, using \(dq\(dq"
+.Pq mdoc
+The first call to
+.Ic \&Nm ,
+or any call in the NAME section, lacks the required argument.
+.It Sy "uname(3) system call failed, using UNKNOWN"
+.Pq mdoc
+The
+.Ic \&Os
+macro is called without arguments, and the
+.Xr uname 3
+system call failed.
+As a workaround,
+.Nm
+can be compiled with
+.Sm off
+.Fl D Cm OSNAME=\(dq\e\(dq Ar string Cm \e\(dq\(dq .
+.Sm on
+.It Sy "unknown standard specifier"
+.Pq mdoc
+An
+.Ic \&St
+macro has an unknown argument and is discarded.
+.It Sy "skipping request without numeric argument"
+.Pq roff , eqn
+An
+.Ic \&it
+request or an
+.Xr eqn 7
+.Ic \&size
+or
+.Ic \&gsize
+statement has a non-numeric or negative argument or no argument at all.
+The invalid request or statement is ignored.
+.It Sy "NOT IMPLEMENTED: .so with absolute path or \(dq..\(dq"
+.Pq roff
+For security reasons,
+.Nm
+allows
+.Ic \&so
+file inclusion requests only with relative paths
+and only without ascending to any parent directory.
+By requesting the inclusion of a sensitive file, a malicious document
+might otherwise trick a privileged user into inadvertently displaying
+the file on the screen, revealing the file content to bystanders.
+.Nm
+only shows the path as it appears behind
+.Ic \&so .
+.It Sy ".so request failed"
+.Pq roff
+Servicing a
+.Ic \&so
+request requires reading an external file, but the file could not be
+opened.
+.Nm
+only shows the path as it appears behind
+.Ic \&so .
+.It Sy "skipping all arguments"
+.Pq mdoc , man , eqn , roff
+An
+.Xr mdoc 7
+.Ic \&Bt ,
+.Ic \&Ed ,
+.Ic \&Ef ,
+.Ic \&Ek ,
+.Ic \&El ,
+.Ic \&Lp ,
+.Ic \&Pp ,
+.Ic \&Re ,
+.Ic \&Rs ,
+or
+.Ic \&Ud
+macro, an
+.Ic \&It
+macro in a list that don't support item heads, a
+.Xr man 7
+.Ic \&LP ,
+.Ic \&P ,
+or
+.Ic \&PP
+macro, an
+.Xr eqn 7
+.Ic \&EQ
+or
+.Ic \&EN
+macro, or a
+.Xr roff 7
+.Ic \&br ,
+.Ic \&fi ,
+or
+.Ic \&nf
+request or
+.Sq \&..
+block closing request is invoked with at least one argument.
+All arguments are ignored.
+.It Sy "skipping excess arguments"
+.Pq mdoc , man , roff
+A macro or request is invoked with too many arguments:
+.Bl -dash -offset 2n -width 2n -compact
+.It
+.Ic \&Fo ,
+.Ic \&MT ,
+.Ic \&PD ,
+.Ic \&RS ,
+.Ic \&UR ,
+.Ic \&ft ,
+or
+.Ic \&sp
+with more than one argument
+.It
+.Ic \&An
+with another argument after
+.Fl split
+or
+.Fl nosplit
+.It
+.Ic \&RE
+with more than one argument or with a non-integer argument
+.It
+.Ic \&OP
+or a request of the
+.Ic \&de
+family with more than two arguments
+.It
+.Ic \&Dt
+with more than three arguments
+.It
+.Ic \&TH
+with more than five arguments
+.It
+.Ic \&Bd ,
+.Ic \&Bk ,
+or
+.Ic \&Bl
+with invalid arguments
+.El
+The excess arguments are ignored.
+.El
+.Ss Unsupported features
+.Bl -ohang
+.It Sy "input too large"
+.Pq mdoc , man
+Currently,
+.Nm
+cannot handle input files larger than its arbitrary size limit
+of 2^31 bytes (2 Gigabytes).
+Since useful manuals are always small, this is not a problem in practice.
+Parsing is aborted as soon as the condition is detected.
+.It Sy "unsupported control character"
+.Pq roff
+An ASCII control character supported by other
+.Xr roff 7
+implementations but not by
+.Nm
+was found in an input file.
+It is replaced by a question mark.
+.It Sy "unsupported roff request"
+.Pq roff
+An input file contains a
+.Xr roff 7
+request supported by GNU troff or Heirloom troff but not by
+.Nm ,
+and it is likely that this will cause information loss
+or considerable misformatting.
+.It Sy "eqn delim option in tbl"
+.Pq eqn , tbl
+The options line of a table defines equation delimiters.
+Any equation source code contained in the table will be printed unformatted.
+.It Sy "unsupported table layout modifier"
+.Pq tbl
+A table layout specification contains an
+.Sq Cm m
+modifier.
+The modifier is discarded.
+.It Sy "ignoring macro in table"
+.Pq tbl , mdoc , man
+A table contains an invocation of an
+.Xr mdoc 7
+or
+.Xr man 7
+macro or of an undefined macro.
+The macro is ignored, and its arguments are handled
+as if they were a text line.
+.El
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr man 1 ,
+.Xr eqn 7 ,
+.Xr man 7 ,
+.Xr mandoc_char 7 ,
+.Xr mdoc 7 ,
+.Xr roff 7 ,
+.Xr tbl 7
+.Sh HISTORY
+The
+.Nm
+utility first appeared in
+.Ox 4.8 .
+The option
+.Fl I
+appeared in
+.Ox 5.2 ,
+and
+.Fl aCcfhKklMSsw
+in
+.Ox 5.7 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+utility was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+and is maintained by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .

Added: vendor/mandoc/dist/mandoc.3
===================================================================
--- vendor/mandoc/dist/mandoc.3	                        (rev 0)
+++ vendor/mandoc/dist/mandoc.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,713 @@
+.\"	$Id: mandoc.3,v 1.41 2017/07/04 23:40:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2010-2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 4 2017 $
+.Dt MANDOC 3
+.Os
+.Sh NAME
+.Nm mandoc ,
+.Nm deroff ,
+.Nm mandocmsg ,
+.Nm man_mparse ,
+.Nm man_validate ,
+.Nm mdoc_validate ,
+.Nm mparse_alloc ,
+.Nm mparse_free ,
+.Nm mparse_getkeep ,
+.Nm mparse_keep ,
+.Nm mparse_open ,
+.Nm mparse_readfd ,
+.Nm mparse_reset ,
+.Nm mparse_result ,
+.Nm mparse_strerror ,
+.Nm mparse_strlevel ,
+.Nm mparse_updaterc
+.Nd mandoc macro compiler library
+.Sh SYNOPSIS
+.In sys/types.h
+.In mandoc.h
+.Pp
+.Fd "#define ASCII_NBRSP"
+.Fd "#define ASCII_HYPH"
+.Fd "#define ASCII_BREAK"
+.Ft struct mparse *
+.Fo mparse_alloc
+.Fa "int options"
+.Fa "enum mandocerr mmin"
+.Fa "mandocmsg mmsg"
+.Fa "enum mandoc_os oe_e"
+.Fa "char *os_s"
+.Fc
+.Ft void
+.Fo (*mandocmsg)
+.Fa "enum mandocerr errtype"
+.Fa "enum mandoclevel level"
+.Fa "const char *file"
+.Fa "int line"
+.Fa "int col"
+.Fa "const char *msg"
+.Fc
+.Ft void
+.Fo mparse_free
+.Fa "struct mparse *parse"
+.Fc
+.Ft const char *
+.Fo mparse_getkeep
+.Fa "const struct mparse *parse"
+.Fc
+.Ft void
+.Fo mparse_keep
+.Fa "struct mparse *parse"
+.Fc
+.Ft int
+.Fo mparse_open
+.Fa "struct mparse *parse"
+.Fa "const char *fname"
+.Fc
+.Ft "enum mandoclevel"
+.Fo mparse_readfd
+.Fa "struct mparse *parse"
+.Fa "int fd"
+.Fa "const char *fname"
+.Fc
+.Ft void
+.Fo mparse_reset
+.Fa "struct mparse *parse"
+.Fc
+.Ft void
+.Fo mparse_result
+.Fa "struct mparse *parse"
+.Fa "struct roff_man **man"
+.Fa "char **sodest"
+.Fc
+.Ft "const char *"
+.Fo mparse_strerror
+.Fa "enum mandocerr"
+.Fc
+.Ft "const char *"
+.Fo mparse_strlevel
+.Fa "enum mandoclevel"
+.Fc
+.Ft void
+.Fo mparse_updaterc
+.Fa "struct mparse *parse"
+.Fa "enum mandoclevel *rc"
+.Fc
+.In roff.h
+.Ft void
+.Fo deroff
+.Fa "char **dest"
+.Fa "const struct roff_node *node"
+.Fc
+.In sys/types.h
+.In mandoc.h
+.In mdoc.h
+.Vt extern const char * const * mdoc_argnames;
+.Vt extern const char * const * mdoc_macronames;
+.Ft void
+.Fo mdoc_validate
+.Fa "struct roff_man *mdoc"
+.Fc
+.In sys/types.h
+.In mandoc.h
+.In man.h
+.Vt extern const char * const * man_macronames;
+.Ft "const struct mparse *"
+.Fo man_mparse
+.Fa "const struct roff_man *man"
+.Fc
+.Ft void
+.Fo man_validate
+.Fa "struct roff_man *man"
+.Fc
+.Sh DESCRIPTION
+The
+.Nm mandoc
+library parses a
+.Ux
+manual into an abstract syntax tree (AST).
+.Ux
+manuals are composed of
+.Xr mdoc 7
+or
+.Xr man 7 ,
+and may be mixed with
+.Xr roff 7 ,
+.Xr tbl 7 ,
+and
+.Xr eqn 7
+invocations.
+.Pp
+The following describes a general parse sequence:
+.Bl -enum
+.It
+initiate a parsing sequence with
+.Xr mchars_alloc 3
+and
+.Fn mparse_alloc ;
+.It
+open a file with
+.Xr open 2
+or
+.Fn mparse_open ;
+.It
+parse it with
+.Fn mparse_readfd ;
+.It
+close it with
+.Xr close 2 ;
+.It
+retrieve the syntax tree with
+.Fn mparse_result ;
+.It
+depending on whether the
+.Fa macroset
+member of the returned
+.Vt struct roff_man
+is
+.Dv MACROSET_MDOC
+or
+.Dv MACROSET_MAN ,
+validate it with
+.Fn mdoc_validate
+or
+.Fn man_validate ,
+respectively;
+.It
+if information about the validity of the input is needed, fetch it with
+.Fn mparse_updaterc ;
+.It
+iterate over parse nodes with starting from the
+.Fa first
+member of the returned
+.Vt struct roff_man ;
+.It
+free all allocated memory with
+.Fn mparse_free
+and
+.Xr mchars_free 3 ,
+or invoke
+.Fn mparse_reset
+and go back to step 2 to parse new files.
+.El
+.Sh REFERENCE
+This section documents the functions, types, and variables available
+via
+.In mandoc.h ,
+with the exception of those documented in
+.Xr mandoc_escape 3
+and
+.Xr mchars_alloc 3 .
+.Ss Types
+.Bl -ohang
+.It Vt "enum mandocerr"
+An error or warning message during parsing.
+.It Vt "enum mandoclevel"
+A classification of an
+.Vt "enum mandocerr"
+as regards system operation.
+See the DIAGNOSTICS section in
+.Xr mandoc 1
+regarding the meanings of the levels.
+.It Vt "struct mparse"
+An opaque pointer to a running parse sequence.
+Created with
+.Fn mparse_alloc
+and freed with
+.Fn mparse_free .
+This may be used across parsed input if
+.Fn mparse_reset
+is called between parses.
+.It Vt "mandocmsg"
+A prototype for a function to handle error and warning
+messages emitted by the parser.
+.El
+.Ss Functions
+.Bl -ohang
+.It Fn deroff
+Obtain a text-only representation of a
+.Vt struct roff_node ,
+including text contained in its child nodes.
+To be used on children of the
+.Fa first
+member of
+.Vt struct roff_man .
+When it is no longer needed, the pointer returned from
+.Fn deroff
+can be passed to
+.Xr free 3 .
+.It Fn man_mparse
+Get the parser used for the current output.
+Declared in
+.In man.h ,
+implemented in
+.Pa man.c .
+.It Fn man_validate
+Validate the
+.Dv MACROSET_MAN
+parse tree obtained with
+.Fn mparse_result .
+Declared in
+.In man.h ,
+implemented in
+.Pa man.c .
+.It Fn mdoc_validate
+Validate the
+.Dv MACROSET_MDOC
+parse tree obtained with
+.Fn mparse_result .
+Declared in
+.In mdoc.h ,
+implemented in
+.Pa mdoc.c .
+.It Fn mparse_alloc
+Allocate a parser.
+The arguments have the following effect:
+.Bl -tag -offset 5n -width inttype
+.It Ar options
+When the
+.Dv MPARSE_MDOC
+or
+.Dv MPARSE_MAN
+bit is set, only that parser is used.
+Otherwise, the document type is automatically detected.
+.Pp
+When the
+.Dv MPARSE_SO
+bit is set,
+.Xr roff 7
+.Ic \&so
+file inclusion requests are always honoured.
+Otherwise, if the request is the only content in an input file,
+only the file name is remembered, to be returned in the
+.Fa sodest
+argument of
+.Fn mparse_result .
+.Pp
+When the
+.Dv MPARSE_QUICK
+bit is set, parsing is aborted after the NAME section.
+This is for example useful in
+.Xr makewhatis 8
+.Fl Q
+to quickly build minimal databases.
+.It Ar mmin
+Can be set to
+.Dv MANDOCERR_BASE ,
+.Dv MANDOCERR_STYLE ,
+.Dv MANDOCERR_WARNING ,
+.Dv MANDOCERR_ERROR ,
+.Dv MANDOCERR_UNSUPP ,
+or
+.Dv MANDOCERR_MAX .
+Messages below the selected level will be suppressed.
+.It Ar mmsg
+A callback function to handle errors and warnings.
+See
+.Pa main.c
+for an example.
+If printing of error messages is not desired,
+.Dv NULL
+may be passed.
+.It Ar os_e
+Operating system to check base system conventions for.
+If
+.Dv MANDOC_OS_OTHER ,
+the system is automatically detected from
+.Ic \&Os ,
+.Fl Ios ,
+or
+.Xr uname 3 .
+.It Ar os_s
+A default string for the
+.Xr mdoc 7
+.Ic \&Os
+macro, overriding the
+.Dv OSNAME
+preprocessor definition and the results of
+.Xr uname 3 .
+Passing
+.Dv NULL
+sets no default.
+.El
+.Pp
+The same parser may be used for multiple files so long as
+.Fn mparse_reset
+is called between parses.
+.Fn mparse_free
+must be called to free the memory allocated by this function.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_free
+Free all memory allocated by
+.Fn mparse_alloc .
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_getkeep
+Acquire the keep buffer.
+Must follow a call of
+.Fn mparse_keep .
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_keep
+Instruct the parser to retain a copy of its parsed input.
+This can be acquired with subsequent
+.Fn mparse_getkeep
+calls.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_open
+Open the file for reading.
+If that fails and
+.Fa fname
+does not already end in
+.Ql .gz ,
+try again after appending
+.Ql .gz .
+Save the information whether the file is zipped or not.
+Return a file descriptor open for reading or -1 on failure.
+It can be passed to
+.Fn mparse_readfd
+or used directly.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_readfd
+Parse a file descriptor opened with
+.Xr open 2
+or
+.Fn mparse_open .
+Pass the associated filename in
+.Va fname .
+This function may be called multiple times with different parameters; however,
+.Xr close 2
+and
+.Fn mparse_reset
+should be invoked between parses.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_reset
+Reset a parser so that
+.Fn mparse_readfd
+may be used again.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_result
+Obtain the result of a parse.
+One of the two pointers will be filled in.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_strerror
+Return a statically-allocated string representation of an error code.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_strlevel
+Return a statically-allocated string representation of a level code.
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.It Fn mparse_updaterc
+If the highest warning or error level that occurred during the current
+.Fa parse
+is higher than
+.Pf * Fa rc ,
+update
+.Pf * Fa rc
+accordingly.
+This is useful after calling
+.Fn mdoc_validate
+or
+.Fn man_validate .
+Declared in
+.In mandoc.h ,
+implemented in
+.Pa read.c .
+.El
+.Ss Variables
+.Bl -ohang
+.It Va man_macronames
+The string representation of a
+.Xr man 7
+macro as indexed by
+.Vt "enum mant" .
+.It Va mdoc_argnames
+The string representation of an
+.Xr mdoc 7
+macro argument as indexed by
+.Vt "enum mdocargt" .
+.It Va mdoc_macronames
+The string representation of an
+.Xr mdoc 7
+macro as indexed by
+.Vt "enum mdoct" .
+.El
+.Sh IMPLEMENTATION NOTES
+This section consists of structural documentation for
+.Xr mdoc 7
+and
+.Xr man 7
+syntax trees and strings.
+.Ss Man and Mdoc Strings
+Strings may be extracted from mdoc and man meta-data, or from text
+nodes (MDOC_TEXT and MAN_TEXT, respectively).
+These strings have special non-printing formatting cues embedded in the
+text itself, as well as
+.Xr roff 7
+escapes preserved from input.
+Implementing systems will need to handle both situations to produce
+human-readable text.
+In general, strings may be assumed to consist of 7-bit ASCII characters.
+.Pp
+The following non-printing characters may be embedded in text strings:
+.Bl -tag -width Ds
+.It Dv ASCII_NBRSP
+A non-breaking space character.
+.It Dv ASCII_HYPH
+A soft hyphen.
+.It Dv ASCII_BREAK
+A breakable zero-width space.
+.El
+.Pp
+Escape characters are also passed verbatim into text strings.
+An escape character is a sequence of characters beginning with the
+backslash
+.Pq Sq \e .
+To construct human-readable text, these should be intercepted with
+.Xr mandoc_escape 3
+and converted with one the functions described in
+.Xr mchars_alloc 3 .
+.Ss Man Abstract Syntax Tree
+This AST is governed by the ontological rules dictated in
+.Xr man 7
+and derives its terminology accordingly.
+.Pp
+The AST is composed of
+.Vt struct roff_node
+nodes with element, root and text types as declared by the
+.Va type
+field.
+Each node also provides its parse point (the
+.Va line ,
+.Va pos ,
+and
+.Va sec
+fields), its position in the tree (the
+.Va parent ,
+.Va child ,
+.Va next
+and
+.Va prev
+fields) and some type-specific data.
+.Pp
+The tree itself is arranged according to the following normal form,
+where capitalised non-terminals represent nodes.
+.Pp
+.Bl -tag -width "ELEMENTXX" -compact
+.It ROOT
+\(<- mnode+
+.It mnode
+\(<- ELEMENT | TEXT | BLOCK
+.It BLOCK
+\(<- HEAD BODY
+.It HEAD
+\(<- mnode*
+.It BODY
+\(<- mnode*
+.It ELEMENT
+\(<- ELEMENT | TEXT*
+.It TEXT
+\(<- [[:ascii:]]*
+.El
+.Pp
+The only elements capable of nesting other elements are those with
+next-line scope as documented in
+.Xr man 7 .
+.Ss Mdoc Abstract Syntax Tree
+This AST is governed by the ontological
+rules dictated in
+.Xr mdoc 7
+and derives its terminology accordingly.
+.Qq In-line
+elements described in
+.Xr mdoc 7
+are described simply as
+.Qq elements .
+.Pp
+The AST is composed of
+.Vt struct roff_node
+nodes with block, head, body, element, root and text types as declared
+by the
+.Va type
+field.
+Each node also provides its parse point (the
+.Va line ,
+.Va pos ,
+and
+.Va sec
+fields), its position in the tree (the
+.Va parent ,
+.Va child ,
+.Va last ,
+.Va next
+and
+.Va prev
+fields) and some type-specific data, in particular, for nodes generated
+from macros, the generating macro in the
+.Va tok
+field.
+.Pp
+The tree itself is arranged according to the following normal form,
+where capitalised non-terminals represent nodes.
+.Pp
+.Bl -tag -width "ELEMENTXX" -compact
+.It ROOT
+\(<- mnode+
+.It mnode
+\(<- BLOCK | ELEMENT | TEXT
+.It BLOCK
+\(<- HEAD [TEXT] (BODY [TEXT])+ [TAIL [TEXT]]
+.It ELEMENT
+\(<- TEXT*
+.It HEAD
+\(<- mnode*
+.It BODY
+\(<- mnode* [ENDBODY mnode*]
+.It TAIL
+\(<- mnode*
+.It TEXT
+\(<- [[:ascii:]]*
+.El
+.Pp
+Of note are the TEXT nodes following the HEAD, BODY and TAIL nodes of
+the BLOCK production: these refer to punctuation marks.
+Furthermore, although a TEXT node will generally have a non-zero-length
+string, in the specific case of
+.Sq \&.Bd \-literal ,
+an empty line will produce a zero-length string.
+Multiple body parts are only found in invocations of
+.Sq \&Bl \-column ,
+where a new body introduces a new phrase.
+.Pp
+The
+.Xr mdoc 7
+syntax tree accommodates for broken block structures as well.
+The ENDBODY node is available to end the formatting associated
+with a given block before the physical end of that block.
+It has a non-null
+.Va end
+field, is of the BODY
+.Va type ,
+has the same
+.Va tok
+as the BLOCK it is ending, and has a
+.Va pending
+field pointing to that BLOCK's BODY node.
+It is an indirect child of that BODY node
+and has no children of its own.
+.Pp
+An ENDBODY node is generated when a block ends while one of its child
+blocks is still open, like in the following example:
+.Bd -literal -offset indent
+\&.Ao ao
+\&.Bo bo ac
+\&.Ac bc
+\&.Bc end
+.Ed
+.Pp
+This example results in the following block structure:
+.Bd -literal -offset indent
+BLOCK Ao
+    HEAD Ao
+    BODY Ao
+        TEXT ao
+        BLOCK Bo, pending -> Ao
+            HEAD Bo
+            BODY Bo
+                TEXT bo
+                TEXT ac
+                ENDBODY Ao, pending -> Ao
+                TEXT bc
+TEXT end
+.Ed
+.Pp
+Here, the formatting of the
+.Ic \&Ao
+block extends from TEXT ao to TEXT ac,
+while the formatting of the
+.Ic \&Bo
+block extends from TEXT bo to TEXT bc.
+It renders as follows in
+.Fl T Ns Cm ascii
+mode:
+.Pp
+.Dl <ao [bo ac> bc] end
+.Pp
+Support for badly-nested blocks is only provided for backward
+compatibility with some older
+.Xr mdoc 7
+implementations.
+Using badly-nested blocks is
+.Em strongly discouraged ;
+for example, the
+.Fl T Ns Cm html
+front-end to
+.Xr mandoc 1
+is unable to render them in any meaningful way.
+Furthermore, behaviour when encountering badly-nested blocks is not
+consistent across troff implementations, especially when using multiple
+levels of badly-nested blocks.
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr man.cgi 3 ,
+.Xr mandoc_escape 3 ,
+.Xr mandoc_headers 3 ,
+.Xr mandoc_malloc 3 ,
+.Xr mansearch 3 ,
+.Xr mchars_alloc 3 ,
+.Xr tbl 3 ,
+.Xr eqn 7 ,
+.Xr man 7 ,
+.Xr mandoc_char 7 ,
+.Xr mdoc 7 ,
+.Xr roff 7 ,
+.Xr tbl 7
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+library was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+and is maintained by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .

Added: vendor/mandoc/dist/mandoc.c
===================================================================
--- vendor/mandoc/dist/mandoc.c	                        (rev 0)
+++ vendor/mandoc/dist/mandoc.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,630 @@
+/*	$Id: mandoc.c,v 1.103 2017/07/03 13:40:19 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "libmandoc.h"
+
+static	int	 a2time(time_t *, const char *, const char *);
+static	char	*time2a(time_t);
+
+
+enum mandoc_esc
+mandoc_escape(const char **end, const char **start, int *sz)
+{
+	const char	*local_start;
+	int		 local_sz;
+	char		 term;
+	enum mandoc_esc	 gly;
+
+	/*
+	 * When the caller doesn't provide return storage,
+	 * use local storage.
+	 */
+
+	if (NULL == start)
+		start = &local_start;
+	if (NULL == sz)
+		sz = &local_sz;
+
+	/*
+	 * Beyond the backslash, at least one input character
+	 * is part of the escape sequence.  With one exception
+	 * (see below), that character won't be returned.
+	 */
+
+	gly = ESCAPE_ERROR;
+	*start = ++*end;
+	*sz = 0;
+	term = '\0';
+
+	switch ((*start)[-1]) {
+	/*
+	 * First the glyphs.  There are several different forms of
+	 * these, but each eventually returns a substring of the glyph
+	 * name.
+	 */
+	case '(':
+		gly = ESCAPE_SPECIAL;
+		*sz = 2;
+		break;
+	case '[':
+		gly = ESCAPE_SPECIAL;
+		term = ']';
+		break;
+	case 'C':
+		if ('\'' != **start)
+			return ESCAPE_ERROR;
+		*start = ++*end;
+		gly = ESCAPE_SPECIAL;
+		term = '\'';
+		break;
+
+	/*
+	 * Escapes taking no arguments at all.
+	 */
+	case 'd':
+	case 'u':
+	case ',':
+	case '/':
+		return ESCAPE_IGNORE;
+	case 'p':
+		return ESCAPE_BREAK;
+
+	/*
+	 * The \z escape is supposed to output the following
+	 * character without advancing the cursor position.
+	 * Since we are mostly dealing with terminal mode,
+	 * let us just skip the next character.
+	 */
+	case 'z':
+		return ESCAPE_SKIPCHAR;
+
+	/*
+	 * Handle all triggers matching \X(xy, \Xx, and \X[xxxx], where
+	 * 'X' is the trigger.  These have opaque sub-strings.
+	 */
+	case 'F':
+	case 'g':
+	case 'k':
+	case 'M':
+	case 'm':
+	case 'n':
+	case 'V':
+	case 'Y':
+		gly = ESCAPE_IGNORE;
+		/* FALLTHROUGH */
+	case 'f':
+		if (ESCAPE_ERROR == gly)
+			gly = ESCAPE_FONT;
+		switch (**start) {
+		case '(':
+			*start = ++*end;
+			*sz = 2;
+			break;
+		case '[':
+			*start = ++*end;
+			term = ']';
+			break;
+		default:
+			*sz = 1;
+			break;
+		}
+		break;
+
+	/*
+	 * These escapes are of the form \X'Y', where 'X' is the trigger
+	 * and 'Y' is any string.  These have opaque sub-strings.
+	 * The \B and \w escapes are handled in roff.c, roff_res().
+	 */
+	case 'A':
+	case 'b':
+	case 'D':
+	case 'R':
+	case 'X':
+	case 'Z':
+		gly = ESCAPE_IGNORE;
+		/* FALLTHROUGH */
+	case 'o':
+		if (**start == '\0')
+			return ESCAPE_ERROR;
+		if (gly == ESCAPE_ERROR)
+			gly = ESCAPE_OVERSTRIKE;
+		term = **start;
+		*start = ++*end;
+		break;
+
+	/*
+	 * These escapes are of the form \X'N', where 'X' is the trigger
+	 * and 'N' resolves to a numerical expression.
+	 */
+	case 'h':
+	case 'H':
+	case 'L':
+	case 'l':
+	case 'S':
+	case 'v':
+	case 'x':
+		if (strchr(" %&()*+-./0123456789:<=>", **start)) {
+			if ('\0' != **start)
+				++*end;
+			return ESCAPE_ERROR;
+		}
+		switch ((*start)[-1]) {
+		case 'h':
+			gly = ESCAPE_HORIZ;
+			break;
+		case 'l':
+			gly = ESCAPE_HLINE;
+			break;
+		default:
+			gly = ESCAPE_IGNORE;
+			break;
+		}
+		term = **start;
+		*start = ++*end;
+		break;
+
+	/*
+	 * Special handling for the numbered character escape.
+	 * XXX Do any other escapes need similar handling?
+	 */
+	case 'N':
+		if ('\0' == **start)
+			return ESCAPE_ERROR;
+		(*end)++;
+		if (isdigit((unsigned char)**start)) {
+			*sz = 1;
+			return ESCAPE_IGNORE;
+		}
+		(*start)++;
+		while (isdigit((unsigned char)**end))
+			(*end)++;
+		*sz = *end - *start;
+		if ('\0' != **end)
+			(*end)++;
+		return ESCAPE_NUMBERED;
+
+	/*
+	 * Sizes get a special category of their own.
+	 */
+	case 's':
+		gly = ESCAPE_IGNORE;
+
+		/* See +/- counts as a sign. */
+		if ('+' == **end || '-' == **end || ASCII_HYPH == **end)
+			*start = ++*end;
+
+		switch (**end) {
+		case '(':
+			*start = ++*end;
+			*sz = 2;
+			break;
+		case '[':
+			*start = ++*end;
+			term = ']';
+			break;
+		case '\'':
+			*start = ++*end;
+			term = '\'';
+			break;
+		case '3':
+		case '2':
+		case '1':
+			*sz = (*end)[-1] == 's' &&
+			    isdigit((unsigned char)(*end)[1]) ? 2 : 1;
+			break;
+		default:
+			*sz = 1;
+			break;
+		}
+
+		break;
+
+	/*
+	 * Anything else is assumed to be a glyph.
+	 * In this case, pass back the character after the backslash.
+	 */
+	default:
+		gly = ESCAPE_SPECIAL;
+		*start = --*end;
+		*sz = 1;
+		break;
+	}
+
+	assert(ESCAPE_ERROR != gly);
+
+	/*
+	 * Read up to the terminating character,
+	 * paying attention to nested escapes.
+	 */
+
+	if ('\0' != term) {
+		while (**end != term) {
+			switch (**end) {
+			case '\0':
+				return ESCAPE_ERROR;
+			case '\\':
+				(*end)++;
+				if (ESCAPE_ERROR ==
+				    mandoc_escape(end, NULL, NULL))
+					return ESCAPE_ERROR;
+				break;
+			default:
+				(*end)++;
+				break;
+			}
+		}
+		*sz = (*end)++ - *start;
+	} else {
+		assert(*sz > 0);
+		if ((size_t)*sz > strlen(*start))
+			return ESCAPE_ERROR;
+		*end += *sz;
+	}
+
+	/* Run post-processors. */
+
+	switch (gly) {
+	case ESCAPE_FONT:
+		if (2 == *sz) {
+			if ('C' == **start) {
+				/*
+				 * Treat constant-width font modes
+				 * just like regular font modes.
+				 */
+				(*start)++;
+				(*sz)--;
+			} else {
+				if ('B' == (*start)[0] && 'I' == (*start)[1])
+					gly = ESCAPE_FONTBI;
+				break;
+			}
+		} else if (1 != *sz)
+			break;
+
+		switch (**start) {
+		case '3':
+		case 'B':
+			gly = ESCAPE_FONTBOLD;
+			break;
+		case '2':
+		case 'I':
+			gly = ESCAPE_FONTITALIC;
+			break;
+		case 'P':
+			gly = ESCAPE_FONTPREV;
+			break;
+		case '1':
+		case 'R':
+			gly = ESCAPE_FONTROMAN;
+			break;
+		}
+		break;
+	case ESCAPE_SPECIAL:
+		if (1 == *sz && 'c' == **start)
+			gly = ESCAPE_NOSPACE;
+		/*
+		 * Unicode escapes are defined in groff as \[u0000]
+		 * to \[u10FFFF], where the contained value must be
+		 * a valid Unicode codepoint.  Here, however, only
+		 * check the length and range.
+		 */
+		if (**start != 'u' || *sz < 5 || *sz > 7)
+			break;
+		if (*sz == 7 && ((*start)[1] != '1' || (*start)[2] != '0'))
+			break;
+		if (*sz == 6 && (*start)[1] == '0')
+			break;
+		if (*sz == 5 && (*start)[1] == 'D' &&
+		    strchr("89ABCDEF", (*start)[2]) != NULL)
+			break;
+		if ((int)strspn(*start + 1, "0123456789ABCDEFabcdef")
+		    + 1 == *sz)
+			gly = ESCAPE_UNICODE;
+		break;
+	default:
+		break;
+	}
+
+	return gly;
+}
+
+/*
+ * Parse a quoted or unquoted roff-style request or macro argument.
+ * Return a pointer to the parsed argument, which is either the original
+ * pointer or advanced by one byte in case the argument is quoted.
+ * NUL-terminate the argument in place.
+ * Collapse pairs of quotes inside quoted arguments.
+ * Advance the argument pointer to the next argument,
+ * or to the NUL byte terminating the argument line.
+ */
+char *
+mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos)
+{
+	char	 *start, *cp;
+	int	  quoted, pairs, white;
+
+	/* Quoting can only start with a new word. */
+	start = *cpp;
+	quoted = 0;
+	if ('"' == *start) {
+		quoted = 1;
+		start++;
+	}
+
+	pairs = 0;
+	white = 0;
+	for (cp = start; '\0' != *cp; cp++) {
+
+		/*
+		 * Move the following text left
+		 * after quoted quotes and after "\\" and "\t".
+		 */
+		if (pairs)
+			cp[-pairs] = cp[0];
+
+		if ('\\' == cp[0]) {
+			/*
+			 * In copy mode, translate double to single
+			 * backslashes and backslash-t to literal tabs.
+			 */
+			switch (cp[1]) {
+			case 't':
+				cp[0] = '\t';
+				/* FALLTHROUGH */
+			case '\\':
+				pairs++;
+				cp++;
+				break;
+			case ' ':
+				/* Skip escaped blanks. */
+				if (0 == quoted)
+					cp++;
+				break;
+			default:
+				break;
+			}
+		} else if (0 == quoted) {
+			if (' ' == cp[0]) {
+				/* Unescaped blanks end unquoted args. */
+				white = 1;
+				break;
+			}
+		} else if ('"' == cp[0]) {
+			if ('"' == cp[1]) {
+				/* Quoted quotes collapse. */
+				pairs++;
+				cp++;
+			} else {
+				/* Unquoted quotes end quoted args. */
+				quoted = 2;
+				break;
+			}
+		}
+	}
+
+	/* Quoted argument without a closing quote. */
+	if (1 == quoted)
+		mandoc_msg(MANDOCERR_ARG_QUOTE, parse, ln, *pos, NULL);
+
+	/* NUL-terminate this argument and move to the next one. */
+	if (pairs)
+		cp[-pairs] = '\0';
+	if ('\0' != *cp) {
+		*cp++ = '\0';
+		while (' ' == *cp)
+			cp++;
+	}
+	*pos += (int)(cp - start) + (quoted ? 1 : 0);
+	*cpp = cp;
+
+	if ('\0' == *cp && (white || ' ' == cp[-1]))
+		mandoc_msg(MANDOCERR_SPACE_EOL, parse, ln, *pos, NULL);
+
+	return start;
+}
+
+static int
+a2time(time_t *t, const char *fmt, const char *p)
+{
+	struct tm	 tm;
+	char		*pp;
+
+	memset(&tm, 0, sizeof(struct tm));
+
+	pp = NULL;
+#if HAVE_STRPTIME
+	pp = strptime(p, fmt, &tm);
+#endif
+	if (NULL != pp && '\0' == *pp) {
+		*t = mktime(&tm);
+		return 1;
+	}
+
+	return 0;
+}
+
+static char *
+time2a(time_t t)
+{
+	struct tm	*tm;
+	char		*buf, *p;
+	size_t		 ssz;
+	int		 isz;
+
+	tm = localtime(&t);
+	if (tm == NULL)
+		return NULL;
+
+	/*
+	 * Reserve space:
+	 * up to 9 characters for the month (September) + blank
+	 * up to 2 characters for the day + comma + blank
+	 * 4 characters for the year and a terminating '\0'
+	 */
+
+	p = buf = mandoc_malloc(10 + 4 + 4 + 1);
+
+	if ((ssz = strftime(p, 10 + 1, "%B ", tm)) == 0)
+		goto fail;
+	p += (int)ssz;
+
+	/*
+	 * The output format is just "%d" here, not "%2d" or "%02d".
+	 * That's also the reason why we can't just format the
+	 * date as a whole with "%B %e, %Y" or "%B %d, %Y".
+	 * Besides, the present approach is less prone to buffer
+	 * overflows, in case anybody should ever introduce the bug
+	 * of looking at LC_TIME.
+	 */
+
+	if ((isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)) == -1)
+		goto fail;
+	p += isz;
+
+	if (strftime(p, 4 + 1, "%Y", tm) == 0)
+		goto fail;
+	return buf;
+
+fail:
+	free(buf);
+	return NULL;
+}
+
+char *
+mandoc_normdate(struct roff_man *man, char *in, int ln, int pos)
+{
+	char		*cp;
+	time_t		 t;
+
+	/* No date specified: use today's date. */
+
+	if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0) {
+		mandoc_msg(MANDOCERR_DATE_MISSING, man->parse, ln, pos, NULL);
+		return time2a(time(NULL));
+	}
+
+	/* Valid mdoc(7) date format. */
+
+	if (a2time(&t, "$" "Mdocdate: %b %d %Y $", in) ||
+	    a2time(&t, "%b %d, %Y", in)) {
+		cp = time2a(t);
+		if (t > time(NULL) + 86400)
+			mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse,
+			    ln, pos, cp);
+		return cp;
+	}
+
+	/* In man(7), do not warn about the legacy format. */
+
+	if (a2time(&t, "%Y-%m-%d", in) == 0)
+		mandoc_msg(MANDOCERR_DATE_BAD, man->parse, ln, pos, in);
+	else if (t > time(NULL) + 86400)
+		mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse, ln, pos, in);
+	else if (man->macroset == MACROSET_MDOC)
+		mandoc_vmsg(MANDOCERR_DATE_LEGACY, man->parse,
+		    ln, pos, "Dd %s", in);
+
+	/* Use any non-mdoc(7) date verbatim. */
+
+	return mandoc_strdup(in);
+}
+
+int
+mandoc_eos(const char *p, size_t sz)
+{
+	const char	*q;
+	int		 enclosed, found;
+
+	if (0 == sz)
+		return 0;
+
+	/*
+	 * End-of-sentence recognition must include situations where
+	 * some symbols, such as `)', allow prior EOS punctuation to
+	 * propagate outward.
+	 */
+
+	enclosed = found = 0;
+	for (q = p + (int)sz - 1; q >= p; q--) {
+		switch (*q) {
+		case '\"':
+		case '\'':
+		case ']':
+		case ')':
+			if (0 == found)
+				enclosed = 1;
+			break;
+		case '.':
+		case '!':
+		case '?':
+			found = 1;
+			break;
+		default:
+			return found &&
+			    (!enclosed || isalnum((unsigned char)*q));
+		}
+	}
+
+	return found && !enclosed;
+}
+
+/*
+ * Convert a string to a long that may not be <0.
+ * If the string is invalid, or is less than 0, return -1.
+ */
+int
+mandoc_strntoi(const char *p, size_t sz, int base)
+{
+	char		 buf[32];
+	char		*ep;
+	long		 v;
+
+	if (sz > 31)
+		return -1;
+
+	memcpy(buf, p, sz);
+	buf[(int)sz] = '\0';
+
+	errno = 0;
+	v = strtol(buf, &ep, base);
+
+	if (buf[0] == '\0' || *ep != '\0')
+		return -1;
+
+	if (v > INT_MAX)
+		v = INT_MAX;
+	if (v < INT_MIN)
+		v = INT_MIN;
+
+	return (int)v;
+}

Added: vendor/mandoc/dist/mandoc.css
===================================================================
--- vendor/mandoc/dist/mandoc.css	                        (rev 0)
+++ vendor/mandoc/dist/mandoc.css	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,203 @@
+/* $Id: mandoc.css,v 1.22 2017/07/16 18:45:00 schwarze Exp $ */
+/*
+ * Standard style sheet for mandoc(1) -Thtml and man.cgi(8).
+ */
+
+/* Global defaults. */
+
+html {		max-width: 100ex; }
+body {		font-family: Helvetica,Arial,sans-serif; }
+table {		margin-top: 0em;
+		margin-bottom: 0em; }
+td {		vertical-align: top; }
+ul, ol, dl {	margin-top: 0em;
+		margin-bottom: 0em; }
+li, dt {	margin-top: 1em; }
+
+a.selflink {	border-bottom: thin dotted;
+		color: inherit;
+		font: inherit;
+		text-decoration: inherit; }
+* {		clear: both }
+
+/* Search form and search results. */
+
+fieldset {	border: thin solid silver;
+		border-radius: 1em;
+		text-align: center; }
+input[name=expr] {
+		width: 25%; }
+
+table.results {	margin-top: 1em;
+		margin-left: 2em;
+		font-size: smaller; }
+
+/* Header and footer lines. */
+
+table.head {	width: 100%;
+		border-bottom: 1px dotted #808080;
+		margin-bottom: 1em;
+		font-size: smaller; }
+td.head-vol {	text-align: center; }
+td.head-rtitle {
+		text-align: right; }
+span.Nd { }
+
+table.foot {	width: 100%;
+		border-top: 1px dotted #808080;
+		margin-top: 1em;
+		font-size: smaller; }
+td.foot-os {	text-align: right; }
+
+/* Sections and paragraphs. */
+
+div.manual-text {
+		margin-left: 5ex; }
+h1.Sh {		margin-top: 2ex;
+		margin-bottom: 1ex;
+		margin-left: -4ex;
+		font-size: 110%; }
+h2.Ss {		margin-top: 2ex;
+		margin-bottom: 1ex;
+		margin-left: -2ex;
+		font-size: 105%; }
+div.Pp {	margin: 1ex 0ex; }
+a.Sx { }
+a.Xr { }
+
+/* Displays and lists. */
+
+div.Bd { }
+div.D1 {	margin-left: 5ex; }
+
+ul.Bl-bullet {	list-style-type: disc;
+		padding-left: 1em; }
+li.It-bullet { }
+ul.Bl-dash {	list-style-type: none;
+		padding-left: 0em; }
+li.It-dash:before {
+		content: "\2014  "; }
+ul.Bl-item {	list-style-type: none;
+		padding-left: 0em; }
+li.It-item { }
+ul.Bl-compact > li {
+		margin-top: 0ex; }
+
+ol.Bl-enum {	padding-left: 2em; }
+li.It-enum { }
+ol.Bl-compact > li {
+		margin-top: 0ex; }
+
+dl.Bl-diag { }
+dt.It-diag { }
+dd.It-diag {	margin-left: 0ex; }
+b.It-diag {	font-style: normal; }
+dl.Bl-hang { }
+dt.It-hang { }
+dd.It-hang {	margin-left: 10.2ex; }
+dl.Bl-inset { }
+dt.It-inset { }
+dd.It-inset {	margin-left: 0ex; }
+dl.Bl-ohang { }
+dt.It-ohang { }
+dd.It-ohang {	margin-left: 0ex; }
+dl.Bl-tag {	margin-left: 10.2ex; }
+dt.It-tag {	float: left;
+		margin-top: 0ex;
+		margin-left: -10.2ex;
+		padding-right: 2ex;
+		vertical-align: top; }
+dd.It-tag {	clear: right;
+		width: 100%;
+		margin-top: 0ex;
+		margin-left: 0ex;
+		vertical-align: top;
+		overflow: auto; }
+dl.Bl-compact > dt {
+		margin-top: 0ex; }
+
+table.Bl-column { }
+tr.It-column { }
+td.It-column {	margin-top: 1em; }
+table.Bl-compact > tbody > tr > td {
+		margin-top: 0ex; }
+
+cite.Rs {	font-style: normal;
+		font-weight: normal; }
+span.RsA { }
+i.RsB {		font-weight: normal; }
+span.RsC { }
+span.RsD { }
+i.RsI {		font-weight: normal; }
+i.RsJ {		font-weight: normal; }
+span.RsN { }
+span.RsO { }
+span.RsP { }
+span.RsQ { }
+span.RsR { }
+span.RsT {	text-decoration: underline; }
+a.RsU { }
+span.RsV { }
+
+span.eqn { }
+table.tbl { }
+
+/* Semantic markup for command line utilities. */
+
+table.Nm { }
+b.Nm {		font-style: normal; }
+b.Fl {		font-style: normal; }
+b.Cm {		font-style: normal; }
+var.Ar {	font-style: italic;
+		font-weight: normal; }
+span.Op { }
+b.Ic {		font-style: normal; }
+code.Ev {	font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }
+i.Pa {		font-weight: normal; }
+
+/* Semantic markup for function libraries. */
+
+span.Lb { }
+b.In {		font-style: normal; }
+a.In { }
+b.Fd {		font-style: normal; }
+var.Ft {	font-style: italic;
+		font-weight: normal; }
+b.Fn {		font-style: normal; }
+var.Fa {	font-style: italic;
+		font-weight: normal; }
+var.Vt {	font-style: italic;
+		font-weight: normal; }
+var.Va {	font-style: italic;
+		font-weight: normal; }
+code.Dv {	font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }
+code.Er {	font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }
+
+/* Various semantic markup. */
+
+span.An { }
+a.Lk { }
+a.Mt { }
+b.Cd {		font-style: normal; }
+i.Ad {		font-weight: normal; }
+b.Ms {		font-style: normal; }
+span.St { }
+a.Ux { }
+
+/* Physical markup. */
+
+.No {		font-style: normal;
+		font-weight: normal; }
+.Em {		font-style: italic;
+		font-weight: normal; }
+.Sy {		font-style: normal;
+		font-weight: bold; }
+.Li {		font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }

Added: vendor/mandoc/dist/mandoc.db.5
===================================================================
--- vendor/mandoc/dist/mandoc.db.5	                        (rev 0)
+++ vendor/mandoc/dist/mandoc.db.5	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,228 @@
+.\"	$Id: mandoc.db.5,v 1.5 2016/08/01 12:27:15 schwarze Exp $
+.\"
+.\" Copyright (c) 2014, 2016 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: August 1 2016 $
+.Dt MANDOC.DB 5
+.Os
+.Sh NAME
+.Nm mandoc.db
+.Nd manual page database
+.Sh DESCRIPTION
+The
+.Nm
+file format is used to store information about installed manual
+pages to facilitate semantic searching for manuals.
+Each manual page tree contains its own
+.Nm
+file; see
+.Sx FILES
+for examples.
+.Pp
+Such database files are generated by
+.Xr makewhatis 8
+and used by
+.Xr man 1 ,
+.Xr apropos 1
+and
+.Xr whatis 1 .
+.Pp
+The file format uses three datatypes:
+.Pp
+.Bl -dash -compact -offset 2n -width 1n
+.It
+32-bit signed integer numbers in big endian (network) byte ordering
+.It
+NUL-terminated strings
+.It
+lists of NUL-terminated strings, terminated by a second NUL character
+.El
+.Pp
+Numbers are aligned to four-byte boundaries; where they follow
+strings or lists of strings, padding with additional NUL characters
+occurs.
+Some, but not all, numbers point to positions in the file.
+These pointers are measured in bytes, and the first byte of the
+file is considered to be byte 0.
+.Pp
+Each file consists of:
+.Pp
+.Bl -dash -compact -offset 2n -width 1n
+.It
+One magic number, 0x3a7d0cdb.
+.It
+One version number, currently 1.
+.It
+One pointer to the macros table.
+.It
+One pointer to the final magic number.
+.It
+The pages table (variable length).
+.It
+The macros table (variable length).
+.It
+The magic number once again, 0x3a7d0cdb.
+.El
+.Pp
+The pages table contains one entry for each physical manual page
+file, no matter how many hard and soft links it may have in the
+file system.
+The pages table consists of:
+.Pp
+.Bl -dash -compact -offset 2n -width 1n
+.It
+The number of pages in the database.
+.It
+For each page:
+.Bl -dash -compact -offset 2n -width 1n
+.It
+One pointer to the list of names.
+.It
+One pointer to the list of sections.
+.It
+One pointer to the list of architectures
+or 0 if the page is machine-independent.
+.It
+One pointer to the one-line description string.
+.It
+One pointer to the list of filenames.
+.El
+.It
+For each page, the list of names.
+Each name is preceded by a single byte indicating the sources of the name.
+The meaning of the bits is:
+.Bl -dash -compact -offset 2n -width 1n
+.It
+0x10: The name appears in a filename.
+.It
+0x08: The name appears in a header line, i.e. in a .Dt or .TH macro.
+.It
+0x04: The name is the first one in the title line, i.e. it appears
+in the first .Nm macro in the NAME section.
+.It
+0x02: The name appears in any .Nm macro in the NAME section.
+.It
+0x01: The name appears in an .Nm block in the SYNOPSIS section.
+.El
+.It
+For each page, the list of sections.
+Each section is given as a string, not as a number.
+.It
+For each architecture-dependent page, the list of architectures.
+.It
+For each page, the one-line description string taken from the .Nd macro.
+.It
+For each page, the list of filenames relative to the root of the
+respective manpath.
+This list includes hard links, soft links, and links simulated
+with .so
+.Xr roff 7
+requests.
+The first filename is preceded by a single byte
+having the following significance:
+.Bl -dash -compact -offset 2n -width 1n
+.It
+.Dv FORM_SRC No = 0x01 :
+The file format is
+.Xr mdoc 7
+or
+.Xr man 7 .
+.It
+.Dv FORM_CAT No = 0x02 :
+The manual page is preformatted.
+.El
+.It
+Zero to three NUL bytes for padding.
+.El
+.Pp
+The macros table consists of:
+.Pp
+.Bl -dash -compact -offset 2n -width 1n
+.It
+The number of different macro keys, currently 36.
+The ordering of macros is defined in
+.In mansearch.h
+and the significance of the macro keys is documented in
+.Xr apropos 1 .
+.It
+For each macro key, one pointer to the respective macro table.
+.It
+For each macro key, the macro table (variable length).
+.El
+.Pp
+Each macro table consists of:
+.Pp
+.Bl -dash -compact -offset 2n -width 1n
+.It
+The number of entries in the table.
+.It
+For each entry:
+.Bl -dash -compact -offset 2n -width 1n
+.It
+One pointer to the value of the macro key.
+Each value is a string of text taken from some macro invocation.
+.It
+One pointer to the list of pages.
+.El
+.It
+For each entry, the value of the macro key.
+.It
+Zero to three NUL bytes for padding.
+.It
+For each entry, one or more pointers to pages in the pages table,
+pointing to the pointer to the list of names,
+followed by the number 0.
+.El
+.Sh FILES
+.Bl -tag -width /usr/share/man/mandoc.db -compact
+.It Pa /usr/share/man/mandoc.db
+The manual page database for the base system.
+.It Pa /usr/X11R6/man/mandoc.db
+The same for the
+.Xr X 7
+Window System.
+.It Pa /usr/local/man/mandoc.db
+The same for
+.Xr packages 7 .
+.El
+.Pp
+A program to dump
+.Nm
+files in a human-readable format suitable for
+.Xr diff 1
+is provided in the directory
+.Pa /usr/src/regress/usr.bin/mandoc/db/dbm_dump/ .
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr man 1 ,
+.Xr whatis 1 ,
+.Xr makewhatis 8
+.Sh HISTORY
+A manual page database
+.Pa /usr/lib/whatis
+first appeared in
+.Bx 2 .
+The present format first appeared in
+.Ox 6.1 .
+.Sh AUTHORS
+.An -nosplit
+The original version of
+.Xr makewhatis 8
+was written by
+.An Bill Joy
+in 1979.
+The present database format was designed by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org
+in 2016.

Added: vendor/mandoc/dist/mandoc.h
===================================================================
--- vendor/mandoc/dist/mandoc.h	                        (rev 0)
+++ vendor/mandoc/dist/mandoc.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,469 @@
+/*	$Id: mandoc.h,v 1.245 2017/07/08 14:51:04 schwarze Exp $ */
+/*
+ * Copyright (c) 2010, 2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define ASCII_NBRSP	 31  /* non-breaking space */
+#define	ASCII_HYPH	 30  /* breakable hyphen */
+#define	ASCII_BREAK	 29  /* breakable zero-width space */
+
+/*
+ * Status level.  This refers to both internal status (i.e., whilst
+ * running, when warnings/errors are reported) and an indicator of a
+ * threshold of when to halt (when said internal state exceeds the
+ * threshold).
+ */
+enum	mandoclevel {
+	MANDOCLEVEL_OK = 0,
+	MANDOCLEVEL_STYLE, /* style suggestions */
+	MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */
+	MANDOCLEVEL_ERROR, /* input has been thrown away */
+	MANDOCLEVEL_UNSUPP, /* input needs unimplemented features */
+	MANDOCLEVEL_BADARG, /* bad argument in invocation */
+	MANDOCLEVEL_SYSERR, /* system error */
+	MANDOCLEVEL_MAX
+};
+
+/*
+ * All possible things that can go wrong within a parse, be it libroff,
+ * libmdoc, or libman.
+ */
+enum	mandocerr {
+	MANDOCERR_OK,
+
+	MANDOCERR_BASE, /* ===== start of base system conventions ===== */
+
+	MANDOCERR_MDOCDATE, /* Mdocdate found: Dd ... */
+	MANDOCERR_MDOCDATE_MISSING, /* Mdocdate missing: Dd ... */
+	MANDOCERR_ARCH_BAD,  /* unknown architecture: Dt ... arch */
+	MANDOCERR_OS_ARG,  /* operating system explicitly specified: Os ... */
+	MANDOCERR_RCS_MISSING, /* RCS id missing */
+	MANDOCERR_XR_BAD,  /* referenced manual not found: Xr name sec */
+
+	MANDOCERR_STYLE, /* ===== start of style suggestions ===== */
+
+	MANDOCERR_DATE_LEGACY, /* legacy man(7) date format: Dd ... */
+	MANDOCERR_TITLE_CASE, /* lower case character in document title */
+	MANDOCERR_RCS_REP, /* duplicate RCS id: ... */
+	MANDOCERR_SEC_TYPO,  /* typo in section name: Sh ... */
+	MANDOCERR_ARG_QUOTE, /* unterminated quoted argument */
+	MANDOCERR_MACRO_USELESS, /* useless macro: macro */
+	MANDOCERR_BX, /* consider using OS macro: macro */
+	MANDOCERR_ER_ORDER, /* errnos out of order: Er ... */
+	MANDOCERR_ER_REP, /* duplicate errno: Er ... */
+	MANDOCERR_DELIM, /* trailing delimiter: macro ... */
+	MANDOCERR_DELIM_NB, /* no blank before trailing delimiter: macro ... */
+	MANDOCERR_FI_SKIP, /* fill mode already enabled, skipping: fi */
+	MANDOCERR_NF_SKIP, /* fill mode already disabled, skipping: nf */
+	MANDOCERR_FUNC, /* function name without markup: name() */
+	MANDOCERR_SPACE_EOL, /* whitespace at end of input line */
+	MANDOCERR_COMMENT_BAD, /* bad comment style */
+
+	MANDOCERR_WARNING, /* ===== start of warnings ===== */
+
+	/* related to the prologue */
+	MANDOCERR_DT_NOTITLE, /* missing manual title, using UNTITLED: line */
+	MANDOCERR_TH_NOTITLE, /* missing manual title, using "": [macro] */
+	MANDOCERR_MSEC_MISSING, /* missing manual section, using "": macro */
+	MANDOCERR_MSEC_BAD, /* unknown manual section: Dt ... section */
+	MANDOCERR_DATE_MISSING, /* missing date, using today's date */
+	MANDOCERR_DATE_BAD, /* cannot parse date, using it verbatim: date */
+	MANDOCERR_DATE_FUTURE, /* date in the future, using it anyway: date */
+	MANDOCERR_OS_MISSING, /* missing Os macro, using "" */
+	MANDOCERR_PROLOG_LATE, /* late prologue macro: macro */
+	MANDOCERR_PROLOG_ORDER, /* prologue macros out of order: macros */
+
+	/* related to document structure */
+	MANDOCERR_SO, /* .so is fragile, better use ln(1): so path */
+	MANDOCERR_DOC_EMPTY, /* no document body */
+	MANDOCERR_SEC_BEFORE, /* content before first section header: macro */
+	MANDOCERR_NAMESEC_FIRST, /* first section is not NAME: Sh title */
+	MANDOCERR_NAMESEC_NONM, /* NAME section without Nm before Nd */
+	MANDOCERR_NAMESEC_NOND, /* NAME section without description */
+	MANDOCERR_NAMESEC_ND, /* description not at the end of NAME */
+	MANDOCERR_NAMESEC_BAD, /* bad NAME section content: macro */
+	MANDOCERR_NAMESEC_PUNCT, /* missing comma before name: Nm name */
+	MANDOCERR_ND_EMPTY, /* missing description line, using "" */
+	MANDOCERR_ND_LATE, /* description line outside NAME section */
+	MANDOCERR_SEC_ORDER, /* sections out of conventional order: Sh title */
+	MANDOCERR_SEC_REP, /* duplicate section title: Sh title */
+	MANDOCERR_SEC_MSEC, /* unexpected section: Sh title for ... only */
+	MANDOCERR_XR_SELF,  /* cross reference to self: Xr name sec */
+	MANDOCERR_XR_ORDER, /* unusual Xr order: ... after ... */
+	MANDOCERR_XR_PUNCT, /* unusual Xr punctuation: ... after ... */
+	MANDOCERR_AN_MISSING, /* AUTHORS section without An macro */
+
+	/* related to macros and nesting */
+	MANDOCERR_MACRO_OBS, /* obsolete macro: macro */
+	MANDOCERR_MACRO_CALL, /* macro neither callable nor escaped: macro */
+	MANDOCERR_PAR_SKIP, /* skipping paragraph macro: macro ... */
+	MANDOCERR_PAR_MOVE, /* moving paragraph macro out of list: macro */
+	MANDOCERR_NS_SKIP, /* skipping no-space macro */
+	MANDOCERR_BLK_NEST, /* blocks badly nested: macro ... */
+	MANDOCERR_BD_NEST, /* nested displays are not portable: macro ... */
+	MANDOCERR_BL_MOVE, /* moving content out of list: macro */
+	MANDOCERR_TA_LINE, /* first macro on line: Ta */
+	MANDOCERR_BLK_LINE, /* line scope broken: macro breaks macro */
+	MANDOCERR_BLK_BLANK, /* skipping blank line in line scope */
+
+	/* related to missing arguments */
+	MANDOCERR_REQ_EMPTY, /* skipping empty request: request */
+	MANDOCERR_COND_EMPTY, /* conditional request controls empty scope */
+	MANDOCERR_MACRO_EMPTY, /* skipping empty macro: macro */
+	MANDOCERR_BLK_EMPTY, /* empty block: macro */
+	MANDOCERR_ARG_EMPTY, /* empty argument, using 0n: macro arg */
+	MANDOCERR_BD_NOTYPE, /* missing display type, using -ragged: Bd */
+	MANDOCERR_BL_LATETYPE, /* list type is not the first argument: Bl arg */
+	MANDOCERR_BL_NOWIDTH, /* missing -width in -tag list, using 6n */
+	MANDOCERR_EX_NONAME, /* missing utility name, using "": Ex */
+	MANDOCERR_FO_NOHEAD, /* missing function name, using "": Fo */
+	MANDOCERR_IT_NOHEAD, /* empty head in list item: Bl -type It */
+	MANDOCERR_IT_NOBODY, /* empty list item: Bl -type It */
+	MANDOCERR_IT_NOARG, /* missing argument, using next line: Bl -c It */
+	MANDOCERR_BF_NOFONT, /* missing font type, using \fR: Bf */
+	MANDOCERR_BF_BADFONT, /* unknown font type, using \fR: Bf font */
+	MANDOCERR_PF_SKIP, /* nothing follows prefix: Pf arg */
+	MANDOCERR_RS_EMPTY, /* empty reference block: Rs */
+	MANDOCERR_XR_NOSEC, /* missing section argument: Xr arg */
+	MANDOCERR_ARG_STD, /* missing -std argument, adding it: macro */
+	MANDOCERR_OP_EMPTY, /* missing option string, using "": OP */
+	MANDOCERR_UR_NOHEAD, /* missing resource identifier, using "": UR */
+	MANDOCERR_EQN_NOBOX, /* missing eqn box, using "": op */
+
+	/* related to bad arguments */
+	MANDOCERR_ARG_REP, /* duplicate argument: macro arg */
+	MANDOCERR_AN_REP, /* skipping duplicate argument: An -arg */
+	MANDOCERR_BD_REP, /* skipping duplicate display type: Bd -type */
+	MANDOCERR_BL_REP, /* skipping duplicate list type: Bl -type */
+	MANDOCERR_BL_SKIPW, /* skipping -width argument: Bl -type */
+	MANDOCERR_BL_COL, /* wrong number of cells */
+	MANDOCERR_AT_BAD, /* unknown AT&T UNIX version: At version */
+	MANDOCERR_FA_COMMA, /* comma in function argument: arg */
+	MANDOCERR_FN_PAREN, /* parenthesis in function name: arg */
+	MANDOCERR_LB_BAD, /* unknown library name: Lb ... */
+	MANDOCERR_RS_BAD, /* invalid content in Rs block: macro */
+	MANDOCERR_SM_BAD, /* invalid Boolean argument: macro arg */
+	MANDOCERR_FT_BAD, /* unknown font, skipping request: ft font */
+	MANDOCERR_TR_ODD, /* odd number of characters in request: tr char */
+
+	/* related to plain text */
+	MANDOCERR_FI_BLANK, /* blank line in fill mode, using .sp */
+	MANDOCERR_FI_TAB, /* tab in filled text */
+	MANDOCERR_EOS, /* new sentence, new line */
+	MANDOCERR_ESC_BAD, /* invalid escape sequence: esc */
+	MANDOCERR_STR_UNDEF, /* undefined string, using "": name */
+
+	/* related to tables */
+	MANDOCERR_TBLLAYOUT_SPAN, /* tbl line starts with span */
+	MANDOCERR_TBLLAYOUT_DOWN, /* tbl column starts with span */
+	MANDOCERR_TBLLAYOUT_VERT, /* skipping vertical bar in tbl layout */
+
+	MANDOCERR_ERROR, /* ===== start of errors ===== */
+
+	/* related to tables */
+	MANDOCERR_TBLOPT_ALPHA, /* non-alphabetic character in tbl options */
+	MANDOCERR_TBLOPT_BAD, /* skipping unknown tbl option: option */
+	MANDOCERR_TBLOPT_NOARG, /* missing tbl option argument: option */
+	MANDOCERR_TBLOPT_ARGSZ, /* wrong tbl option argument size: option */
+	MANDOCERR_TBLLAYOUT_NONE, /* empty tbl layout */
+	MANDOCERR_TBLLAYOUT_CHAR, /* invalid character in tbl layout: char */
+	MANDOCERR_TBLLAYOUT_PAR, /* unmatched parenthesis in tbl layout */
+	MANDOCERR_TBLDATA_NONE, /* tbl without any data cells */
+	MANDOCERR_TBLDATA_SPAN, /* ignoring data in spanned tbl cell: data */
+	MANDOCERR_TBLDATA_EXTRA, /* ignoring extra tbl data cells: data */
+	MANDOCERR_TBLDATA_BLK, /* data block open at end of tbl: macro */
+
+	/* related to document structure and macros */
+	MANDOCERR_FILE, /* cannot open file */
+	MANDOCERR_PROLOG_REP, /* duplicate prologue macro: macro */
+	MANDOCERR_DT_LATE, /* skipping late title macro: Dt args */
+	MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */
+	MANDOCERR_CHAR_BAD, /* skipping bad character: number */
+	MANDOCERR_MACRO, /* skipping unknown macro: macro */
+	MANDOCERR_REQ_INSEC, /* skipping insecure request: request */
+	MANDOCERR_IT_STRAY, /* skipping item outside list: It ... */
+	MANDOCERR_TA_STRAY, /* skipping column outside column list: Ta */
+	MANDOCERR_BLK_NOTOPEN, /* skipping end of block that is not open */
+	MANDOCERR_RE_NOTOPEN, /* fewer RS blocks open, skipping: RE arg */
+	MANDOCERR_BLK_BROKEN, /* inserting missing end of block: macro ... */
+	MANDOCERR_BLK_NOEND, /* appending missing end of block: macro */
+
+	/* related to request and macro arguments */
+	MANDOCERR_NAMESC, /* escaped character not allowed in a name: name */
+	MANDOCERR_BD_FILE, /* NOT IMPLEMENTED: Bd -file */
+	MANDOCERR_BD_NOARG, /* skipping display without arguments: Bd */
+	MANDOCERR_BL_NOTYPE, /* missing list type, using -item: Bl */
+	MANDOCERR_CE_NONUM, /* argument is not numeric, using 1: ce ... */
+	MANDOCERR_NM_NONAME, /* missing manual name, using "": Nm */
+	MANDOCERR_OS_UNAME, /* uname(3) system call failed, using UNKNOWN */
+	MANDOCERR_ST_BAD, /* unknown standard specifier: St standard */
+	MANDOCERR_IT_NONUM, /* skipping request without numeric argument */
+	MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
+	MANDOCERR_SO_FAIL, /* .so request failed */
+	MANDOCERR_ARG_SKIP, /* skipping all arguments: macro args */
+	MANDOCERR_ARG_EXCESS, /* skipping excess arguments: macro ... args */
+	MANDOCERR_DIVZERO, /* divide by zero */
+
+	MANDOCERR_UNSUPP, /* ===== start of unsupported features ===== */
+
+	MANDOCERR_TOOLARGE, /* input too large */
+	MANDOCERR_CHAR_UNSUPP, /* unsupported control character: number */
+	MANDOCERR_REQ_UNSUPP, /* unsupported roff request: request */
+	MANDOCERR_TBLOPT_EQN, /* eqn delim option in tbl: arg */
+	MANDOCERR_TBLLAYOUT_MOD, /* unsupported tbl layout modifier: m */
+	MANDOCERR_TBLMACRO, /* ignoring macro in table: macro */
+
+	MANDOCERR_MAX
+};
+
+struct	tbl_opts {
+	char		  tab; /* cell-separator */
+	char		  decimal; /* decimal point */
+	int		  opts;
+#define	TBL_OPT_CENTRE	 (1 << 0)
+#define	TBL_OPT_EXPAND	 (1 << 1)
+#define	TBL_OPT_BOX	 (1 << 2)
+#define	TBL_OPT_DBOX	 (1 << 3)
+#define	TBL_OPT_ALLBOX	 (1 << 4)
+#define	TBL_OPT_NOKEEP	 (1 << 5)
+#define	TBL_OPT_NOSPACE	 (1 << 6)
+#define	TBL_OPT_NOWARN	 (1 << 7)
+	int		  cols; /* number of columns */
+	int		  lvert; /* width of left vertical line */
+	int		  rvert; /* width of right vertical line */
+};
+
+enum	tbl_cellt {
+	TBL_CELL_CENTRE, /* c, C */
+	TBL_CELL_RIGHT, /* r, R */
+	TBL_CELL_LEFT, /* l, L */
+	TBL_CELL_NUMBER, /* n, N */
+	TBL_CELL_SPAN, /* s, S */
+	TBL_CELL_LONG, /* a, A */
+	TBL_CELL_DOWN, /* ^ */
+	TBL_CELL_HORIZ, /* _, - */
+	TBL_CELL_DHORIZ, /* = */
+	TBL_CELL_MAX
+};
+
+/*
+ * A cell in a layout row.
+ */
+struct	tbl_cell {
+	struct tbl_cell	 *next;
+	char		 *wstr; /* min width represented as a string */
+	size_t		  width; /* minimum column width */
+	size_t		  spacing; /* to the right of the column */
+	int		  vert; /* width of subsequent vertical line */
+	int		  col; /* column number, starting from 0 */
+	int		  flags;
+#define	TBL_CELL_TALIGN	 (1 << 0) /* t, T */
+#define	TBL_CELL_BALIGN	 (1 << 1) /* d, D */
+#define	TBL_CELL_BOLD	 (1 << 2) /* fB, B, b */
+#define	TBL_CELL_ITALIC	 (1 << 3) /* fI, I, i */
+#define	TBL_CELL_EQUAL	 (1 << 4) /* e, E */
+#define	TBL_CELL_UP	 (1 << 5) /* u, U */
+#define	TBL_CELL_WIGN	 (1 << 6) /* z, Z */
+#define	TBL_CELL_WMAX	 (1 << 7) /* x, X */
+	enum tbl_cellt	  pos;
+};
+
+/*
+ * A layout row.
+ */
+struct	tbl_row {
+	struct tbl_row	 *next;
+	struct tbl_cell	 *first;
+	struct tbl_cell	 *last;
+	int		  vert; /* width of left vertical line */
+};
+
+enum	tbl_datt {
+	TBL_DATA_NONE, /* has no data */
+	TBL_DATA_DATA, /* consists of data/string */
+	TBL_DATA_HORIZ, /* horizontal line */
+	TBL_DATA_DHORIZ, /* double-horizontal line */
+	TBL_DATA_NHORIZ, /* squeezed horizontal line */
+	TBL_DATA_NDHORIZ /* squeezed double-horizontal line */
+};
+
+/*
+ * A cell within a row of data.  The "string" field contains the actual
+ * string value that's in the cell.  The rest is layout.
+ */
+struct	tbl_dat {
+	struct tbl_cell	 *layout; /* layout cell */
+	struct tbl_dat	 *next;
+	char		 *string; /* data (NULL if not TBL_DATA_DATA) */
+	int		  spans; /* how many spans follow */
+	int		  block; /* T{ text block T} */
+	enum tbl_datt	  pos;
+};
+
+enum	tbl_spant {
+	TBL_SPAN_DATA, /* span consists of data */
+	TBL_SPAN_HORIZ, /* span is horizontal line */
+	TBL_SPAN_DHORIZ /* span is double horizontal line */
+};
+
+/*
+ * A row of data in a table.
+ */
+struct	tbl_span {
+	struct tbl_opts	 *opts;
+	struct tbl_row	 *layout; /* layout row */
+	struct tbl_dat	 *first;
+	struct tbl_dat	 *last;
+	struct tbl_span	 *prev;
+	struct tbl_span	 *next;
+	int		  line; /* parse line */
+	enum tbl_spant	  pos;
+};
+
+enum	eqn_boxt {
+	EQN_TEXT, /* text (number, variable, whatever) */
+	EQN_SUBEXPR, /* nested `eqn' subexpression */
+	EQN_LIST, /* list (braces, etc.) */
+	EQN_PILE, /* vertical pile */
+	EQN_MATRIX /* pile of piles */
+};
+
+enum	eqn_fontt {
+	EQNFONT_NONE = 0,
+	EQNFONT_ROMAN,
+	EQNFONT_BOLD,
+	EQNFONT_FAT,
+	EQNFONT_ITALIC,
+	EQNFONT__MAX
+};
+
+enum	eqn_post {
+	EQNPOS_NONE = 0,
+	EQNPOS_SUP,
+	EQNPOS_SUBSUP,
+	EQNPOS_SUB,
+	EQNPOS_TO,
+	EQNPOS_FROM,
+	EQNPOS_FROMTO,
+	EQNPOS_OVER,
+	EQNPOS_SQRT,
+	EQNPOS__MAX
+};
+
+enum	eqn_pilet {
+	EQNPILE_NONE = 0,
+	EQNPILE_PILE,
+	EQNPILE_CPILE,
+	EQNPILE_RPILE,
+	EQNPILE_LPILE,
+	EQNPILE_COL,
+	EQNPILE_CCOL,
+	EQNPILE_RCOL,
+	EQNPILE_LCOL,
+	EQNPILE__MAX
+};
+
+ /*
+ * A "box" is a parsed mathematical expression as defined by the eqn.7
+ * grammar.
+ */
+struct	eqn_box {
+	int		  size; /* font size of expression */
+#define	EQN_DEFSIZE	  INT_MIN
+	enum eqn_boxt	  type; /* type of node */
+	struct eqn_box	 *first; /* first child node */
+	struct eqn_box	 *last; /* last child node */
+	struct eqn_box	 *next; /* node sibling */
+	struct eqn_box	 *prev; /* node sibling */
+	struct eqn_box	 *parent; /* node sibling */
+	char		 *text; /* text (or NULL) */
+	char		 *left; /* fence left-hand */
+	char		 *right; /* fence right-hand */
+	char		 *top; /* expression over-symbol */
+	char		 *bottom; /* expression under-symbol */
+	size_t		  args; /* arguments in parent */
+	size_t		  expectargs; /* max arguments in parent */
+	enum eqn_post	  pos; /* position of next box */
+	enum eqn_fontt	  font; /* font of box */
+	enum eqn_pilet	  pile; /* equation piling */
+};
+
+/*
+ * Parse options.
+ */
+#define	MPARSE_MDOC	1  /* assume -mdoc */
+#define	MPARSE_MAN	2  /* assume -man */
+#define	MPARSE_SO	4  /* honour .so requests */
+#define	MPARSE_QUICK	8  /* abort the parse early */
+#define	MPARSE_UTF8	16 /* accept UTF-8 input */
+#define	MPARSE_LATIN1	32 /* accept ISO-LATIN-1 input */
+
+enum	mandoc_os {
+	MANDOC_OS_OTHER = 0,
+	MANDOC_OS_NETBSD,
+	MANDOC_OS_OPENBSD
+};
+
+enum	mandoc_esc {
+	ESCAPE_ERROR = 0, /* bail! unparsable escape */
+	ESCAPE_IGNORE, /* escape to be ignored */
+	ESCAPE_SPECIAL, /* a regular special character */
+	ESCAPE_FONT, /* a generic font mode */
+	ESCAPE_FONTBOLD, /* bold font mode */
+	ESCAPE_FONTITALIC, /* italic font mode */
+	ESCAPE_FONTBI, /* bold italic font mode */
+	ESCAPE_FONTROMAN, /* roman font mode */
+	ESCAPE_FONTPREV, /* previous font mode */
+	ESCAPE_NUMBERED, /* a numbered glyph */
+	ESCAPE_UNICODE, /* a unicode codepoint */
+	ESCAPE_BREAK, /* break the output line */
+	ESCAPE_NOSPACE, /* suppress space if the last on a line */
+	ESCAPE_HORIZ, /* horizontal movement */
+	ESCAPE_HLINE, /* horizontal line drawing */
+	ESCAPE_SKIPCHAR, /* skip the next character */
+	ESCAPE_OVERSTRIKE /* overstrike all chars in the argument */
+};
+
+typedef	void	(*mandocmsg)(enum mandocerr, enum mandoclevel,
+			const char *, int, int, const char *);
+
+
+struct	mparse;
+struct	roff_man;
+
+enum mandoc_esc	  mandoc_escape(const char **, const char **, int *);
+void		  mchars_alloc(void);
+void		  mchars_free(void);
+int		  mchars_num2char(const char *, size_t);
+const char	 *mchars_uc2str(int);
+int		  mchars_num2uc(const char *, size_t);
+int		  mchars_spec2cp(const char *, size_t);
+const char	 *mchars_spec2str(const char *, size_t, size_t *);
+struct mparse	 *mparse_alloc(int, enum mandocerr, mandocmsg,
+			enum mandoc_os, const char *);
+void		  mparse_free(struct mparse *);
+void		  mparse_keep(struct mparse *);
+int		  mparse_open(struct mparse *, const char *);
+enum mandoclevel  mparse_readfd(struct mparse *, int, const char *);
+enum mandoclevel  mparse_readmem(struct mparse *, void *, size_t,
+			const char *);
+void		  mparse_reset(struct mparse *);
+void		  mparse_result(struct mparse *,
+			struct roff_man **, char **);
+const char	 *mparse_getkeep(const struct mparse *);
+const char	 *mparse_strerror(enum mandocerr);
+const char	 *mparse_strlevel(enum mandoclevel);
+void		  mparse_updaterc(struct mparse *, enum mandoclevel *);

Added: vendor/mandoc/dist/mandoc_aux.c
===================================================================
--- vendor/mandoc/dist/mandoc_aux.c	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_aux.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,118 @@
+/*	$Id: mandoc_aux.c,v 1.10 2017/06/12 19:05:47 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+
+
+int
+mandoc_asprintf(char **dest, const char *fmt, ...)
+{
+	va_list	 ap;
+	int	 ret;
+
+	va_start(ap, fmt);
+	ret = vasprintf(dest, fmt, ap);
+	va_end(ap);
+
+	if (ret == -1)
+		err((int)MANDOCLEVEL_SYSERR, NULL);
+	return ret;
+}
+
+void *
+mandoc_calloc(size_t num, size_t size)
+{
+	void	*ptr;
+
+	ptr = calloc(num, size);
+	if (ptr == NULL)
+		err((int)MANDOCLEVEL_SYSERR, NULL);
+	return ptr;
+}
+
+void *
+mandoc_malloc(size_t size)
+{
+	void	*ptr;
+
+	ptr = malloc(size);
+	if (ptr == NULL)
+		err((int)MANDOCLEVEL_SYSERR, NULL);
+	return ptr;
+}
+
+void *
+mandoc_realloc(void *ptr, size_t size)
+{
+	ptr = realloc(ptr, size);
+	if (ptr == NULL)
+		err((int)MANDOCLEVEL_SYSERR, NULL);
+	return ptr;
+}
+
+void *
+mandoc_reallocarray(void *ptr, size_t num, size_t size)
+{
+	ptr = reallocarray(ptr, num, size);
+	if (ptr == NULL)
+		err((int)MANDOCLEVEL_SYSERR, NULL);
+	return ptr;
+}
+
+void *
+mandoc_recallocarray(void *ptr, size_t oldnum, size_t num, size_t size)
+{
+	ptr = recallocarray(ptr, oldnum, num, size);
+	if (ptr == NULL)
+		err((int)MANDOCLEVEL_SYSERR, NULL);
+	return ptr;
+}
+
+char *
+mandoc_strdup(const char *ptr)
+{
+	char	*p;
+
+	p = strdup(ptr);
+	if (p == NULL)
+		err((int)MANDOCLEVEL_SYSERR, NULL);
+	return p;
+}
+
+char *
+mandoc_strndup(const char *ptr, size_t sz)
+{
+	char	*p;
+
+	p = mandoc_malloc(sz + 1);
+	memcpy(p, ptr, sz);
+	p[(int)sz] = '\0';
+	return p;
+}

Added: vendor/mandoc/dist/mandoc_aux.h
===================================================================
--- vendor/mandoc/dist/mandoc_aux.h	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_aux.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+/*	$Id: mandoc_aux.h,v 1.7 2017/06/12 19:05:47 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+int		  mandoc_asprintf(char **, const char *, ...)
+			__attribute__((__format__ (__printf__, 2, 3)));
+void		 *mandoc_calloc(size_t, size_t);
+void		 *mandoc_malloc(size_t);
+void		 *mandoc_realloc(void *, size_t);
+void		 *mandoc_reallocarray(void *, size_t, size_t);
+void		 *mandoc_recallocarray(void *, size_t, size_t, size_t);
+char		 *mandoc_strdup(const char *);
+char		 *mandoc_strndup(const char *, size_t);

Added: vendor/mandoc/dist/mandoc_char.7
===================================================================
--- vendor/mandoc/dist/mandoc_char.7	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_char.7	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,808 @@
+.\"	$Id: mandoc_char.7,v 1.67 2017/06/14 20:57:07 schwarze Exp $
+.\"
+.\" Copyright (c) 2003 Jason McIntyre <jmc at openbsd.org>
+.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2011, 2013, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: June 14 2017 $
+.Dt MANDOC_CHAR 7
+.Os
+.Sh NAME
+.Nm mandoc_char
+.Nd mandoc special characters
+.Sh DESCRIPTION
+This page documents the
+.Xr roff 7
+escape sequences accepted by
+.Xr mandoc 1
+to represent special characters in
+.Xr mdoc 7
+and
+.Xr man 7
+documents.
+.Pp
+The rendering depends on the
+.Xr mandoc 1
+output mode; in ASCII output, most characters are completely
+unintelligible.
+For that reason, using any of the special characters documented here,
+except those discussed in the
+.Sx DESCRIPTION ,
+is strongly discouraged; they are supported merely for backwards
+compatibility with existing documents.
+.Pp
+In particular, in English manual pages, do not use special-character
+escape sequences to represent national language characters in author
+names; instead, provide ASCII transcriptions of the names.
+.Ss Dashes and Hyphens
+In typography there are different types of dashes of various width:
+the hyphen (-),
+the minus sign (\(mi),
+the en-dash (\(en),
+and the em-dash (\(em).
+.Pp
+Hyphens are used for adjectives;
+to separate the two parts of a compound word;
+or to separate a word across two successive lines of text.
+The hyphen does not need to be escaped:
+.Bd -unfilled -offset indent
+blue-eyed
+lorry-driver
+.Ed
+.Pp
+If a word on a text input line contains a hyphen, a formatter may decide
+to insert an output line break after the hyphen if that helps filling
+the current output line, but the whole word would overflow the line.
+If it is important that the word is not broken across lines in this
+way, a zero-width space
+.Pq Sq \e&
+can be inserted before or after the hyphen.
+While
+.Xr mandoc 1
+never breaks the output line after hyphens adjacent to a zero-width
+space, after any of the other dash- or hyphen-like characters
+represented by escape sequences, or after hyphens inside words in
+macro arguments, other software may not respect these rules and may
+break the line even in such cases.
+.Pp
+Some
+.Xr roff 7
+implementations contains dictionaries allowing to break the line
+at syllable boundaries even inside words that contain no hyphens.
+Such automatic hyphenation is not supported by
+.Xr mandoc 1 ,
+which only breaks the line at whitespace, and inside words only
+after existing hyphens.
+.Pp
+The mathematical minus sign is used for negative numbers or subtraction.
+It should be written as
+.Sq \e(mi :
+.Bd -unfilled -offset indent
+a = 3 \e(mi 1;
+b = \e(mi2;
+.Ed
+.Pp
+The en-dash is used to separate the two elements of a range,
+or can be used the same way as an em-dash.
+It should be written as
+.Sq \e(en :
+.Bd -unfilled -offset indent
+pp. 95\e(en97.
+Go away \e(en or else!
+.Ed
+.Pp
+The em-dash can be used to show an interruption
+or can be used the same way as colons, semi-colons, or parentheses.
+It should be written as
+.Sq \e(em :
+.Bd -unfilled -offset indent
+Three things \e(em apples, oranges, and bananas.
+This is not that \e(em rather, this is that.
+.Ed
+.Pp
+Note:
+hyphens, minus signs, and en-dashes look identical under normal ASCII output.
+Other formats, such as PostScript, render them correctly,
+with differing widths.
+.Ss Spaces
+To separate words in normal text, for indenting and alignment
+in literal context, and when none of the following special cases apply,
+just use the normal space character
+.Pq Sq \  .
+.Pp
+When filling text, output lines may be broken between words, i.e. at space
+characters.
+To prevent a line break between two particular words,
+use the unpaddable non-breaking space escape sequence
+.Pq Sq \e\ \&
+instead of the normal space character.
+For example, the input string
+.Dq number\e\ 1
+will be kept together as
+.Dq number\ 1
+on the same output line.
+.Pp
+On request and macro lines, the normal space character serves as an
+argument delimiter.
+To include whitespace into arguments, quoting is usually the best choice;
+see the MACRO SYNTAX section in
+.Xr roff 7 .
+In some cases, using the non-breaking space escape sequence
+.Pq Sq \e\ \&
+may be preferable.
+.Pp
+To escape macro names and to protect whitespace at the end
+of input lines, the zero-width space
+.Pq Sq \e&
+is often useful.
+For example, in
+.Xr mdoc 7 ,
+a normal space character can be displayed in single quotes in either
+of the following ways:
+.Pp
+.Dl .Sq \(dq \(dq
+.Dl .Sq \e \e&
+.Ss Quotes
+On request and macro lines, the double-quote character
+.Pq Sq \(dq
+is handled specially to allow quoting.
+One way to prevent this special handling is by using the
+.Sq \e(dq
+escape sequence.
+.Pp
+Note that on text lines, literal double-quote characters can be used
+verbatim.
+All other quote-like characters can be used verbatim as well,
+even on request and macro lines.
+.Ss Accents
+In output modes supporting such special output characters, for example
+.Fl T Cm pdf ,
+and sometimes less consistently in
+.Fl T Cm utf8 ,
+some
+.Xr roff 7
+formatters convert the following ASCII input characters to the
+following Unicode special output characters:
+.Bl -column x(ga U+2018 -offset indent
+.It \(ga Ta U+2018 Ta left single quotation mark
+.It \(aq Ta U+2019 Ta right single quotation mark
+.It \(ti Ta U+02DC Ta small tilde
+.It \(ha Ta U+02C6 Ta modifier letter circumflex
+.El
+.Pp
+In prose, this automatic substitution is often desirable;
+but when these characters have to be displayed as plain ASCII
+characters, for example in source code samples, they require
+escaping to render as follows:
+.Bl -column x(ga U+2018 -offset indent
+.It \e(ga Ta U+0060 Ta grave accent
+.It \e(aq Ta U+0027 Ta apostrophe
+.It \e(ti Ta U+007E Ta tilde
+.It \e(ha Ta U+005E Ta circumflex accent
+.El
+.Ss Periods
+The period
+.Pq Sq \&.
+is handled specially at the beginning of an input line,
+where it introduces a
+.Xr roff 7
+request or a macro, and when appearing alone as a macro argument in
+.Xr mdoc 7 .
+In such situations, prepend a zero-width space
+.Pq Sq \e&.
+to make it behave like normal text.
+.Pp
+Do not use the
+.Sq \e.
+escape sequence.
+It does not prevent special handling of the period.
+.Ss Backslashes
+To include a literal backslash
+.Pq Sq \e
+into the output, use the
+.Pq Sq \ee
+escape sequence.
+.Pp
+Note that doubling it
+.Pq Sq \e\e
+is not the right way to output a backslash.
+Because
+.Xr mandoc 1
+does not implement full
+.Xr roff 7
+functionality, it may work with
+.Xr mandoc 1 ,
+but it may have weird effects on complete
+.Xr roff 7
+implementations.
+.Sh SPECIAL CHARACTERS
+Special characters are encoded as
+.Sq \eX
+.Pq for a one-character escape ,
+.Sq \e(XX
+.Pq two-character ,
+and
+.Sq \e[N]
+.Pq N-character .
+For details, see the
+.Em Special Characters
+subsection of the
+.Xr roff 7
+manual.
+.Pp
+Spacing:
+.Bl -column "Input" "Description" -offset indent -compact
+.It Em Input Ta Em Description
+.It Sq \e\ \& Ta unpaddable non-breaking space
+.It \e\(ti   Ta paddable non-breaking space
+.It \e0      Ta unpaddable, breaking digit-width space
+.It \e|      Ta one-sixth \e(em narrow space, zero width in nroff mode
+.It \e^      Ta one-twelfth \e(em half-narrow space, zero width in nroff
+.It \e&      Ta zero-width space
+.It \e%      Ta zero-width space allowing hyphenation
+.El
+.Pp
+Lines:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(ba    Ta \(ba        Ta bar
+.It \e(br    Ta \(br        Ta box rule
+.It \e(ul    Ta \(ul        Ta underscore
+.It \e(ru    Ta \(ru        Ta underscore (width 0.5m)
+.It \e(rn    Ta \(rn        Ta overline
+.It \e(bb    Ta \(bb        Ta broken bar
+.It \e(sl    Ta \(sl        Ta forward slash
+.It \e(rs    Ta \(rs        Ta backward slash
+.El
+.Pp
+Text markers:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(ci    Ta \(ci        Ta circle
+.It \e(bu    Ta \(bu        Ta bullet
+.It \e(dd    Ta \(dd        Ta double dagger
+.It \e(dg    Ta \(dg        Ta dagger
+.It \e(lz    Ta \(lz        Ta lozenge
+.It \e(sq    Ta \(sq        Ta white square
+.It \e(ps    Ta \(ps        Ta paragraph
+.It \e(sc    Ta \(sc        Ta section
+.It \e(lh    Ta \(lh        Ta left hand
+.It \e(rh    Ta \(rh        Ta right hand
+.It \e(at    Ta \(at        Ta at
+.It \e(sh    Ta \(sh        Ta hash (pound)
+.It \e(CR    Ta \(CR        Ta carriage return
+.It \e(OK    Ta \(OK        Ta check mark
+.It \e(CL    Ta \(CL        Ta club suit
+.It \e(SP    Ta \(SP        Ta spade suit
+.It \e(HE    Ta \(HE        Ta heart suit
+.It \e(DI    Ta \(DI        Ta diamond suit
+.El
+.Pp
+Legal symbols:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(co    Ta \(co        Ta copyright
+.It \e(rg    Ta \(rg        Ta registered
+.It \e(tm    Ta \(tm        Ta trademarked
+.El
+.Pp
+Punctuation:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(em    Ta \(em        Ta em-dash
+.It \e(en    Ta \(en        Ta en-dash
+.It \e(hy    Ta \(hy        Ta hyphen
+.It \ee      Ta \e          Ta back-slash
+.It \e.      Ta \.          Ta period
+.It \e(r!    Ta \(r!        Ta upside-down exclamation
+.It \e(r?    Ta \(r?        Ta upside-down question
+.El
+.Pp
+Quotes:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(Bq    Ta \(Bq        Ta right low double-quote
+.It \e(bq    Ta \(bq        Ta right low single-quote
+.It \e(lq    Ta \(lq        Ta left double-quote
+.It \e(rq    Ta \(rq        Ta right double-quote
+.It \e(oq    Ta \(oq        Ta left single-quote
+.It \e(cq    Ta \(cq        Ta right single-quote
+.It \e(aq    Ta \(aq        Ta apostrophe quote (text)
+.It \e(dq    Ta \(dq        Ta double quote (text)
+.It \e(Fo    Ta \(Fo        Ta left guillemet
+.It \e(Fc    Ta \(Fc        Ta right guillemet
+.It \e(fo    Ta \(fo        Ta left single guillemet
+.It \e(fc    Ta \(fc        Ta right single guillemet
+.El
+.Pp
+Brackets:
+.Bl -column "xxbracketrightbtx" Rendered Description -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(lB    Ta \(lB        Ta left bracket
+.It \e(rB    Ta \(rB        Ta right bracket
+.It \e(lC    Ta \(lC        Ta left brace
+.It \e(rC    Ta \(rC        Ta right brace
+.It \e(la    Ta \(la        Ta left angle
+.It \e(ra    Ta \(ra        Ta right angle
+.It \e(bv    Ta \(bv        Ta brace extension
+.It \e[braceex] Ta \[braceex] Ta brace extension
+.It \e[bracketlefttp] Ta \[bracketlefttp] Ta top-left hooked bracket
+.It \e[bracketleftbt] Ta \[bracketleftbt] Ta bottom-left hooked bracket
+.It \e[bracketleftex] Ta \[bracketleftex] Ta left hooked bracket extension
+.It \e[bracketrighttp] Ta \[bracketrighttp] Ta top-right hooked bracket
+.It \e[bracketrightbt] Ta \[bracketrightbt] Ta bottom-right hooked bracket
+.It \e[bracketrightex] Ta \[bracketrightex] Ta right hooked bracket extension
+.It \e(lt    Ta \(lt        Ta top-left hooked brace
+.It \e[bracelefttp] Ta \[bracelefttp] Ta top-left hooked brace
+.It \e(lk    Ta \(lk        Ta mid-left hooked brace
+.It \e[braceleftmid] Ta \[braceleftmid] Ta mid-left hooked brace
+.It \e(lb    Ta \(lb        Ta bottom-left hooked brace
+.It \e[braceleftbt] Ta \[braceleftbt] Ta bottom-left hooked brace
+.It \e[braceleftex] Ta \[braceleftex] Ta left hooked brace extension
+.It \e(rt    Ta \(rt        Ta top-left hooked brace
+.It \e[bracerighttp] Ta \[bracerighttp] Ta top-right hooked brace
+.It \e(rk    Ta \(rk        Ta mid-right hooked brace
+.It \e[bracerightmid] Ta \[bracerightmid] Ta mid-right hooked brace
+.It \e(rb    Ta \(rb        Ta bottom-right hooked brace
+.It \e[bracerightbt] Ta \[bracerightbt] Ta bottom-right hooked brace
+.It \e[bracerightex] Ta \[bracerightex] Ta right hooked brace extension
+.It \e[parenlefttp] Ta \[parenlefttp] Ta top-left hooked parenthesis
+.It \e[parenleftbt] Ta \[parenleftbt] Ta bottom-left hooked parenthesis
+.It \e[parenleftex] Ta \[parenleftex] Ta left hooked parenthesis extension
+.It \e[parenrighttp] Ta \[parenrighttp] Ta top-right hooked parenthesis
+.It \e[parenrightbt] Ta \[parenrightbt] Ta bottom-right hooked parenthesis
+.It \e[parenrightex] Ta \[parenrightex] Ta right hooked parenthesis extension
+.El
+.Pp
+Arrows:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(<-    Ta \(<-        Ta left arrow
+.It \e(->    Ta \(->        Ta right arrow
+.It \e(<>    Ta \(<>        Ta left-right arrow
+.It \e(da    Ta \(da        Ta down arrow
+.It \e(ua    Ta \(ua        Ta up arrow
+.It \e(va    Ta \(va        Ta up-down arrow
+.It \e(lA    Ta \(lA        Ta left double-arrow
+.It \e(rA    Ta \(rA        Ta right double-arrow
+.It \e(hA    Ta \(hA        Ta left-right double-arrow
+.It \e(uA    Ta \(uA        Ta up double-arrow
+.It \e(dA    Ta \(dA        Ta down double-arrow
+.It \e(vA    Ta \(vA        Ta up-down double-arrow
+.It \e(an    Ta \(an        Ta horizontal arrow extension
+.El
+.Pp
+Logical:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(AN    Ta \(AN        Ta logical and
+.It \e(OR    Ta \(OR        Ta logical or
+.It \e(no    Ta \(no        Ta logical not
+.It \e[tno]  Ta \[tno]      Ta logical not (text)
+.It \e(te    Ta \(te        Ta existential quantifier
+.It \e(fa    Ta \(fa        Ta universal quantifier
+.It \e(st    Ta \(st        Ta such that
+.It \e(tf    Ta \(tf        Ta therefore
+.It \e(3d    Ta \(3d        Ta therefore
+.It \e(or    Ta \(or        Ta bitwise or
+.El
+.Pp
+Mathematical:
+.Bl -column "xxcoproductxx" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(pl    Ta \(pl        Ta plus
+.It \e(mi    Ta \(mi        Ta minus
+.It \e-      Ta \-          Ta minus (text)
+.It \e(-+    Ta \(-+        Ta minus-plus
+.It \e(+-    Ta \(+-        Ta plus-minus
+.It \e[t+-]  Ta \[t+-]      Ta plus-minus (text)
+.It \e(pc    Ta \(pc        Ta center-dot
+.It \e(mu    Ta \(mu        Ta multiply
+.It \e[tmu]  Ta \[tmu]      Ta multiply (text)
+.It \e(c*    Ta \(c*        Ta circle-multiply
+.It \e(c+    Ta \(c+        Ta circle-plus
+.It \e(di    Ta \(di        Ta divide
+.It \e[tdi]  Ta \[tdi]      Ta divide (text)
+.It \e(f/    Ta \(f/        Ta fraction
+.It \e(**    Ta \(**        Ta asterisk
+.It \e(<=    Ta \(<=        Ta less-than-equal
+.It \e(>=    Ta \(>=        Ta greater-than-equal
+.It \e(<<    Ta \(<<        Ta much less
+.It \e(>>    Ta \(>>        Ta much greater
+.It \e(eq    Ta \(eq        Ta equal
+.It \e(!=    Ta \(!=        Ta not equal
+.It \e(==    Ta \(==        Ta equivalent
+.It \e(ne    Ta \(ne        Ta not equivalent
+.It \e(ap    Ta \(ap        Ta tilde operator
+.It \e(|=    Ta \(|=        Ta asymptotically equal
+.It \e(=\(ti Ta \(=~        Ta approximately equal
+.It \e(\(ti\(ti Ta \(~~        Ta almost equal
+.It \e(\(ti= Ta \(~=        Ta almost equal
+.It \e(pt    Ta \(pt        Ta proportionate
+.It \e(es    Ta \(es        Ta empty set
+.It \e(mo    Ta \(mo        Ta element
+.It \e(nm    Ta \(nm        Ta not element
+.It \e(sb    Ta \(sb        Ta proper subset
+.It \e(nb    Ta \(nb        Ta not subset
+.It \e(sp    Ta \(sp        Ta proper superset
+.It \e(nc    Ta \(nc        Ta not superset
+.It \e(ib    Ta \(ib        Ta reflexive subset
+.It \e(ip    Ta \(ip        Ta reflexive superset
+.It \e(ca    Ta \(ca        Ta intersection
+.It \e(cu    Ta \(cu        Ta union
+.It \e(/_    Ta \(/_        Ta angle
+.It \e(pp    Ta \(pp        Ta perpendicular
+.It \e(is    Ta \(is        Ta integral
+.It \e[integral] Ta \[integral] Ta integral
+.It \e[sum]    Ta \[sum]   Ta summation
+.It \e[product] Ta \[product] Ta product
+.It \e[coproduct] Ta \[coproduct] Ta coproduct
+.It \e(gr    Ta \(gr        Ta gradient
+.It \e(sr    Ta \(sr        Ta square root
+.It \e[sqrt] Ta \[sqrt]     Ta square root
+.It \e(lc    Ta \(lc        Ta left-ceiling
+.It \e(rc    Ta \(rc        Ta right-ceiling
+.It \e(lf    Ta \(lf        Ta left-floor
+.It \e(rf    Ta \(rf        Ta right-floor
+.It \e(if    Ta \(if        Ta infinity
+.It \e(Ah    Ta \(Ah        Ta aleph
+.It \e(Im    Ta \(Im        Ta imaginary
+.It \e(Re    Ta \(Re        Ta real
+.It \e(wp    Ta \(wp        Ta Weierstrass p
+.It \e(pd    Ta \(pd        Ta partial differential
+.It \e(-h    Ta \(-h        Ta Planck constant over 2\(*p
+.It \e[hbar] Ta \[hbar]     Ta Planck constant over 2\(*p
+.It \e(12    Ta \(12        Ta one-half
+.It \e(14    Ta \(14        Ta one-fourth
+.It \e(34    Ta \(34        Ta three-fourths
+.It \e(18    Ta \(18        Ta one-eighth
+.It \e(38    Ta \(38        Ta three-eighths
+.It \e(58    Ta \(58        Ta five-eighths
+.It \e(78    Ta \(78        Ta seven-eighths
+.It \e(S1    Ta \(S1        Ta superscript 1
+.It \e(S2    Ta \(S2        Ta superscript 2
+.It \e(S3    Ta \(S3        Ta superscript 3
+.El
+.Pp
+Ligatures:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(ff    Ta \(ff        Ta ff ligature
+.It \e(fi    Ta \(fi        Ta fi ligature
+.It \e(fl    Ta \(fl        Ta fl ligature
+.It \e(Fi    Ta \(Fi        Ta ffi ligature
+.It \e(Fl    Ta \(Fl        Ta ffl ligature
+.It \e(AE    Ta \(AE        Ta AE
+.It \e(ae    Ta \(ae        Ta ae
+.It \e(OE    Ta \(OE        Ta OE
+.It \e(oe    Ta \(oe        Ta oe
+.It \e(ss    Ta \(ss        Ta German eszett
+.It \e(IJ    Ta \(IJ        Ta IJ ligature
+.It \e(ij    Ta \(ij        Ta ij ligature
+.El
+.Pp
+Accents:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(a"    Ta \(a"        Ta Hungarian umlaut
+.It \e(a-    Ta \(a-        Ta macron
+.It \e(a.    Ta \(a.        Ta dotted
+.It \e(a^    Ta \(a^        Ta circumflex
+.It \e(aa    Ta \(aa        Ta acute
+.It \e\(aq   Ta \'          Ta acute
+.It \e(ga    Ta \(ga        Ta grave
+.It \e\(ga   Ta \`          Ta grave
+.It \e(ab    Ta \(ab        Ta breve
+.It \e(ac    Ta \(ac        Ta cedilla
+.It \e(ad    Ta \(ad        Ta dieresis
+.It \e(ah    Ta \(ah        Ta caron
+.It \e(ao    Ta \(ao        Ta ring
+.It \e(a\(ti Ta \(a~        Ta tilde
+.It \e(ho    Ta \(ho        Ta ogonek
+.It \e(ha    Ta \(ha        Ta hat (text)
+.It \e(ti    Ta \(ti        Ta tilde (text)
+.El
+.Pp
+Accented letters:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(\(aqA Ta \('A        Ta acute A
+.It \e(\(aqE Ta \('E        Ta acute E
+.It \e(\(aqI Ta \('I        Ta acute I
+.It \e(\(aqO Ta \('O        Ta acute O
+.It \e(\(aqU Ta \('U        Ta acute U
+.It \e(\(aqa Ta \('a        Ta acute a
+.It \e(\(aqe Ta \('e        Ta acute e
+.It \e(\(aqi Ta \('i        Ta acute i
+.It \e(\(aqo Ta \('o        Ta acute o
+.It \e(\(aqu Ta \('u        Ta acute u
+.It \e(\(gaA Ta \(`A        Ta grave A
+.It \e(\(gaE Ta \(`E        Ta grave E
+.It \e(\(gaI Ta \(`I        Ta grave I
+.It \e(\(gaO Ta \(`O        Ta grave O
+.It \e(\(gaU Ta \(`U        Ta grave U
+.It \e(\(gaa Ta \(`a        Ta grave a
+.It \e(\(gae Ta \(`e        Ta grave e
+.It \e(\(gai Ta \(`i        Ta grave i
+.It \e(\(gao Ta \(`i        Ta grave o
+.It \e(\(gau Ta \(`u        Ta grave u
+.It \e(\(tiA Ta \(~A        Ta tilde A
+.It \e(\(tiN Ta \(~N        Ta tilde N
+.It \e(\(tiO Ta \(~O        Ta tilde O
+.It \e(\(tia Ta \(~a        Ta tilde a
+.It \e(\(tin Ta \(~n        Ta tilde n
+.It \e(\(tio Ta \(~o        Ta tilde o
+.It \e(:A    Ta \(:A        Ta dieresis A
+.It \e(:E    Ta \(:E        Ta dieresis E
+.It \e(:I    Ta \(:I        Ta dieresis I
+.It \e(:O    Ta \(:O        Ta dieresis O
+.It \e(:U    Ta \(:U        Ta dieresis U
+.It \e(:a    Ta \(:a        Ta dieresis a
+.It \e(:e    Ta \(:e        Ta dieresis e
+.It \e(:i    Ta \(:i        Ta dieresis i
+.It \e(:o    Ta \(:o        Ta dieresis o
+.It \e(:u    Ta \(:u        Ta dieresis u
+.It \e(:y    Ta \(:y        Ta dieresis y
+.It \e(^A    Ta \(^A        Ta circumflex A
+.It \e(^E    Ta \(^E        Ta circumflex E
+.It \e(^I    Ta \(^I        Ta circumflex I
+.It \e(^O    Ta \(^O        Ta circumflex O
+.It \e(^U    Ta \(^U        Ta circumflex U
+.It \e(^a    Ta \(^a        Ta circumflex a
+.It \e(^e    Ta \(^e        Ta circumflex e
+.It \e(^i    Ta \(^i        Ta circumflex i
+.It \e(^o    Ta \(^o        Ta circumflex o
+.It \e(^u    Ta \(^u        Ta circumflex u
+.It \e(,C    Ta \(,C        Ta cedilla C
+.It \e(,c    Ta \(,c        Ta cedilla c
+.It \e(/L    Ta \(/L        Ta stroke L
+.It \e(/l    Ta \(/l        Ta stroke l
+.It \e(/O    Ta \(/O        Ta stroke O
+.It \e(/o    Ta \(/o        Ta stroke o
+.It \e(oA    Ta \(oA        Ta ring A
+.It \e(oa    Ta \(oa        Ta ring a
+.El
+.Pp
+Special letters:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(-D    Ta \(-D        Ta Eth
+.It \e(Sd    Ta \(Sd        Ta eth
+.It \e(TP    Ta \(TP        Ta Thorn
+.It \e(Tp    Ta \(Tp        Ta thorn
+.It \e(.i    Ta \(.i        Ta dotless i
+.It \e(.j    Ta \(.j        Ta dotless j
+.El
+.Pp
+Currency:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(Do    Ta \(Do        Ta dollar
+.It \e(ct    Ta \(ct        Ta cent
+.It \e(Eu    Ta \(Eu        Ta Euro symbol
+.It \e(eu    Ta \(eu        Ta Euro symbol
+.It \e(Ye    Ta \(Ye        Ta yen
+.It \e(Po    Ta \(Po        Ta pound
+.It \e(Cs    Ta \(Cs        Ta Scandinavian
+.It \e(Fn    Ta \(Fn        Ta florin
+.El
+.Pp
+Units:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(de    Ta \(de        Ta degree
+.It \e(%0    Ta \(%0        Ta per-thousand
+.It \e(fm    Ta \(fm        Ta minute
+.It \e(sd    Ta \(sd        Ta second
+.It \e(mc    Ta \(mc        Ta micro
+.It \e(Of    Ta \(Of        Ta Spanish female ordinal
+.It \e(Om    Ta \(Om        Ta Spanish masculine ordinal
+.El
+.Pp
+Greek letters:
+.Bl -column "Input" "Rendered" "Description" -offset indent -compact
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e(*A    Ta \(*A        Ta Alpha
+.It \e(*B    Ta \(*B        Ta Beta
+.It \e(*G    Ta \(*G        Ta Gamma
+.It \e(*D    Ta \(*D        Ta Delta
+.It \e(*E    Ta \(*E        Ta Epsilon
+.It \e(*Z    Ta \(*Z        Ta Zeta
+.It \e(*Y    Ta \(*Y        Ta Eta
+.It \e(*H    Ta \(*H        Ta Theta
+.It \e(*I    Ta \(*I        Ta Iota
+.It \e(*K    Ta \(*K        Ta Kappa
+.It \e(*L    Ta \(*L        Ta Lambda
+.It \e(*M    Ta \(*M        Ta Mu
+.It \e(*N    Ta \(*N        Ta Nu
+.It \e(*C    Ta \(*C        Ta Xi
+.It \e(*O    Ta \(*O        Ta Omicron
+.It \e(*P    Ta \(*P        Ta Pi
+.It \e(*R    Ta \(*R        Ta Rho
+.It \e(*S    Ta \(*S        Ta Sigma
+.It \e(*T    Ta \(*T        Ta Tau
+.It \e(*U    Ta \(*U        Ta Upsilon
+.It \e(*F    Ta \(*F        Ta Phi
+.It \e(*X    Ta \(*X        Ta Chi
+.It \e(*Q    Ta \(*Q        Ta Psi
+.It \e(*W    Ta \(*W        Ta Omega
+.It \e(*a    Ta \(*a        Ta alpha
+.It \e(*b    Ta \(*b        Ta beta
+.It \e(*g    Ta \(*g        Ta gamma
+.It \e(*d    Ta \(*d        Ta delta
+.It \e(*e    Ta \(*e        Ta epsilon
+.It \e(*z    Ta \(*z        Ta zeta
+.It \e(*y    Ta \(*y        Ta eta
+.It \e(*h    Ta \(*h        Ta theta
+.It \e(*i    Ta \(*i        Ta iota
+.It \e(*k    Ta \(*k        Ta kappa
+.It \e(*l    Ta \(*l        Ta lambda
+.It \e(*m    Ta \(*m        Ta mu
+.It \e(*n    Ta \(*n        Ta nu
+.It \e(*c    Ta \(*c        Ta xi
+.It \e(*o    Ta \(*o        Ta omicron
+.It \e(*p    Ta \(*p        Ta pi
+.It \e(*r    Ta \(*r        Ta rho
+.It \e(*s    Ta \(*s        Ta sigma
+.It \e(*t    Ta \(*t        Ta tau
+.It \e(*u    Ta \(*u        Ta upsilon
+.It \e(*f    Ta \(*f        Ta phi
+.It \e(*x    Ta \(*x        Ta chi
+.It \e(*q    Ta \(*q        Ta psi
+.It \e(*w    Ta \(*w        Ta omega
+.It \e(+h    Ta \(+h        Ta theta variant
+.It \e(+f    Ta \(+f        Ta phi variant
+.It \e(+p    Ta \(+p        Ta pi variant
+.It \e(+e    Ta \(+e        Ta epsilon variant
+.It \e(ts    Ta \(ts        Ta sigma terminal
+.El
+.Sh PREDEFINED STRINGS
+Predefined strings are inherited from the macro packages of historical
+troff implementations.
+They are
+.Em not recommended
+for use, as they differ across implementations.
+Manuals using these predefined strings are almost certainly not
+portable.
+.Pp
+Their syntax is similar to special characters, using
+.Sq \e*X
+.Pq for a one-character escape ,
+.Sq \e*(XX
+.Pq two-character ,
+and
+.Sq \e*[N]
+.Pq N-character .
+For details, see the
+.Em Predefined Strings
+subsection of the
+.Xr roff 7
+manual.
+.Bl -column "Input" "Rendered" "Description" -offset indent
+.It Em Input Ta Em Rendered Ta Em Description
+.It \e*(Ba   Ta \*(Ba       Ta vertical bar
+.It \e*(Ne   Ta \*(Ne       Ta not equal
+.It \e*(Ge   Ta \*(Ge       Ta greater-than-equal
+.It \e*(Le   Ta \*(Le       Ta less-than-equal
+.It \e*(Gt   Ta \*(Gt       Ta greater-than
+.It \e*(Lt   Ta \*(Lt       Ta less-than
+.It \e*(Pm   Ta \*(Pm       Ta plus-minus
+.It \e*(If   Ta \*(If       Ta infinity
+.It \e*(Pi   Ta \*(Pi       Ta pi
+.It \e*(Na   Ta \*(Na       Ta NaN
+.It \e*(Am   Ta \*(Am       Ta ampersand
+.It \e*R     Ta \*R         Ta restricted mark
+.It \e*(Tm   Ta \*(Tm       Ta trade mark
+.It \e*q     Ta \*q         Ta double-quote
+.It \e*(Rq   Ta \*(Rq       Ta right-double-quote
+.It \e*(Lq   Ta \*(Lq       Ta left-double-quote
+.It \e*(lp   Ta \*(lp       Ta right-parenthesis
+.It \e*(rp   Ta \*(rp       Ta left-parenthesis
+.It \e*(lq   Ta \*(lq       Ta left double-quote
+.It \e*(rq   Ta \*(rq       Ta right double-quote
+.It \e*(ua   Ta \*(ua       Ta up arrow
+.It \e*(va   Ta \*(va       Ta up-down arrow
+.It \e*(<=   Ta \*(<=       Ta less-than-equal
+.It \e*(>=   Ta \*(>=       Ta greater-than-equal
+.It \e*(aa   Ta \*(aa       Ta acute
+.It \e*(ga   Ta \*(ga       Ta grave
+.It \e*(Px   Ta \*(Px       Ta POSIX standard name
+.It \e*(Ai   Ta \*(Ai       Ta ANSI standard name
+.El
+.Sh UNICODE CHARACTERS
+The escape sequences
+.Pp
+.Dl \e[uXXXX] and \eC\(aquXXXX\(aq
+.Pp
+are interpreted as Unicode codepoints.
+The codepoint must be in the range above U+0080 and less than U+10FFFF.
+For compatibility, the hexadecimal digits
+.Sq A
+to
+.Sq F
+must be given as uppercase characters,
+and points must be zero-padded to four characters; if
+greater than four characters, no zero padding is allowed.
+Unicode surrogates are not allowed.
+.Sh NUMBERED CHARACTERS
+For backward compatibility with existing manuals,
+.Xr mandoc 1
+also supports the
+.Pp
+.Dl \eN\(aq Ns Ar number Ns \(aq
+.Pp
+escape sequence, inserting the character
+.Ar number
+from the current character set into the output.
+Of course, this is inherently non-portable and is already marked
+as deprecated in the Heirloom roff manual.
+For example, do not use \eN\(aq34\(aq, use \e(dq, or even the plain
+.Sq \(dq
+character where possible.
+.Sh COMPATIBILITY
+This section documents compatibility between mandoc and other
+troff implementations, at this time limited to GNU troff
+.Pq Qq groff .
+.Pp
+.Bl -dash -compact
+.It
+The \eN\(aq\(aq escape sequence is limited to printable characters; in
+groff, it accepts arbitrary character numbers.
+.It
+In
+.Fl T Ns Cm ascii ,
+the
+\e(ss, \e(nm, \e(nb, \e(nc, \e(ib, \e(ip, \e(pp, \e[sum], \e[product],
+\e[coproduct], \e(gr, \e(-h, and \e(a. special characters render
+differently between mandoc and groff.
+.It
+In
+.Fl T Ns Cm html ,
+the \e(\(ti=, \e(nb, and \e(nc special characters render differently
+between mandoc and groff.
+.It
+The
+.Fl T Ns Cm ps
+and
+.Fl T Ns Cm pdf
+modes format like
+.Fl T Ns Cm ascii
+instead of rendering glyphs as in groff.
+.It
+The \e[radicalex], \e[sqrtex], and \e(ru special characters have been omitted
+from mandoc either because they are poorly documented or they have no
+known representation.
+.El
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr man 7 ,
+.Xr mdoc 7 ,
+.Xr roff 7
+.Sh AUTHORS
+The
+.Nm
+manual page was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv .
+.Sh CAVEATS
+The predefined string
+.Sq \e*(Ba
+mimics the behaviour of the
+.Sq \&|
+character in
+.Xr mdoc 7 ;
+thus, if you wish to render a vertical bar with no side effects, use
+the
+.Sq \e(ba
+escape.

Added: vendor/mandoc/dist/mandoc_escape.3
===================================================================
--- vendor/mandoc/dist/mandoc_escape.3	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_escape.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,367 @@
+.\"	$Id: mandoc_escape.3,v 1.4 2017/07/04 23:40:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2014 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 4 2017 $
+.Dt MANDOC_ESCAPE 3
+.Os
+.Sh NAME
+.Nm mandoc_escape
+.Nd parse roff escape sequences
+.Sh SYNOPSIS
+.In sys/types.h
+.In mandoc.h
+.Ft "enum mandoc_esc"
+.Fo mandoc_escape
+.Fa "const char **end"
+.Fa "const char **start"
+.Fa "int *sz"
+.Fc
+.Sh DESCRIPTION
+This function scans a
+.Xr roff 7
+escape sequence.
+.Pp
+An escape sequence consists of
+.Bl -dash -compact -width 2n
+.It
+an initial backslash character
+.Pq Sq \e ,
+.It
+a single ASCII character called the escape sequence identifier,
+.It
+and, with only a few exceptions, an argument.
+.El
+.Pp
+Arguments can be given in the following forms; some escape sequence
+identifiers only accept some of these forms as specified below.
+The first three forms are called the standard forms.
+.Bl -tag -width 2n
+.It \&In brackets: Ic \&[ Ns Ar argument Ns Ic \&]
+The argument starts after the initial
+.Sq \&[ ,
+ends before the final
+.Sq \&] ,
+and the escape sequence ends with the final
+.Sq \&] .
+.It Two-character argument short form: Ic \&( Ns Ar ar
+This form can only be used for arguments
+consisting of exactly two characters.
+It has the same effect as
+.Ic \&[ Ns Ar ar Ns Ic \&] .
+.It One-character argument short form: Ar a
+This form can only be used for arguments
+consisting of exactly one character.
+It has the same effect as
+.Ic \&[ Ns Ar a Ns Ic \&] .
+.It Delimited form: Ar C Ns Ar argument Ns Ar C
+The argument starts after the initial delimiter character
+.Ar C ,
+ends before the next occurrence of the delimiter character
+.Ar C ,
+and the escape sequence ends with that second
+.Ar C .
+Some escape sequences allow arbitrary characters
+.Ar C
+as quoting characters, some restrict the range of characters
+that can be used as quoting characters.
+.El
+.Pp
+Upon function entry,
+.Fa end
+is expected to point to the escape sequence identifier.
+The values passed in as
+.Fa start
+and
+.Fa sz
+are ignored and overwritten.
+.Pp
+By design, this function cannot handle those
+.Xr roff 7
+escape sequences that require in-place expansion, in particular
+user-defined strings
+.Ic \e* ,
+number registers
+.Ic \en ,
+width measurements
+.Ic \ew ,
+and numerical expression control
+.Ic \eB .
+These are handled by
+.Fn roff_res ,
+a private preprocessor function called from
+.Fn roff_parseln ,
+see the file
+.Pa roff.c .
+.Pp
+The function
+.Fn mandoc_escape
+is used
+.Bl -dash -compact -width 2n
+.It
+recursively by itself, because some escape sequence arguments can
+in turn contain other escape sequences,
+.It
+for error detection internally by the
+.Xr roff 7
+parser part of the
+.Xr mandoc 3
+library, see the file
+.Pa roff.c ,
+.It
+above all externally by the
+.Xr mandoc 1
+formatting modules, in particular
+.Fl Tascii
+and
+.Fl Thtml ,
+for formatting purposes, see the files
+.Pa term.c
+and
+.Pa html.c ,
+.It
+and rarely externally by high-level utilities using the mandoc library,
+for example
+.Xr makewhatis 8 ,
+to purge escape sequences from text.
+.El
+.Sh RETURN VALUES
+Upon function return, the pointer
+.Fa end
+is set to the character after the end of the escape sequence,
+such that the calling higher-level parser can easily continue.
+.Pp
+For escape sequences taking an argument, the pointer
+.Fa start
+is set to the beginning of the argument and
+.Fa sz
+is set to the length of the argument.
+For escape sequences not taking an argument,
+.Fa start
+is set to the character after the end of the sequence and
+.Fa sz
+is set to 0.
+Both
+.Fa start
+and
+.Fa sz
+may be
+.Dv NULL ;
+in that case, the argument and the length are not returned.
+.Pp
+For sequences taking an argument, the function
+.Fn mandoc_escape
+returns one of the following values:
+.Bl -tag -width 2n
+.It Dv ESCAPE_FONT
+The escape sequence
+.Ic \ef
+taking an argument in standard form:
+.Ic \ef[ , \ef( , \ef Ns Ar a .
+Two-character arguments starting with the character
+.Sq C
+are reduced to one-character arguments by skipping the
+.Sq C .
+More specific values are returned for the most commonly used arguments:
+.Bl -column "argument" "ESCAPE_FONTITALIC"
+.It argument Ta return value
+.It Cm R No or Cm 1 Ta Dv ESCAPE_FONTROMAN
+.It Cm I No or Cm 2 Ta Dv ESCAPE_FONTITALIC
+.It Cm B No or Cm 3 Ta Dv ESCAPE_FONTBOLD
+.It Cm P Ta Dv ESCAPE_FONTPREV
+.It Cm BI Ta Dv ESCAPE_FONTBI
+.El
+.It Dv ESCAPE_SPECIAL
+The escape sequence
+.Ic \eC
+taking an argument delimited with the single quote character
+and, as a special exception, the escape sequences
+.Em not
+having an identifier, that is, those where the argument, in standard
+form, directly follows the initial backslash:
+.Ic \eC' , \e[ , \e( , \e Ns Ar a .
+Note that the one-character argument short form can only be used for
+argument characters that do not clash with escape sequence identifiers.
+.Pp
+If the argument matches one of the forms described below under
+.Dv ESCAPE_UNICODE ,
+that value is returned instead.
+.Pp
+The
+.Dv ESCAPE_SPECIAL
+special character escape sequences can be rendered using the functions
+.Fn mchars_spec2cp
+and
+.Fn mchars_spec2str
+described in the
+.Xr mchars_alloc 3
+manual.
+.It Dv ESCAPE_UNICODE
+Escape sequences of the same format as described above under
+.Dv ESCAPE_SPECIAL ,
+but with an argument of the forms
+.Ic u Ns Ar XXXX ,
+.Ic u Ns Ar YXXXX ,
+or
+.Ic u10 Ns Ar XXXX
+where
+.Ar X
+and
+.Ar Y
+are hexadecimal digits and
+.Ar Y
+is not zero:
+.Ic \eC'u , \e[u .
+As a special exception,
+.Fa start
+is set to the character after the
+.Ic u ,
+and the
+.Fa sz
+return value does not include the
+.Ic u
+either.
+.Pp
+Such Unicode character escape sequences can be rendered using the function
+.Fn mchars_num2uc
+described in the
+.Xr mchars_alloc 3
+manual.
+.It Dv ESCAPE_NUMBERED
+The escape sequence
+.Ic \eN
+followed by a delimited argument.
+The delimiter character is arbitrary except that digits cannot be used.
+If a digit is encountered instead of the opening delimiter, that
+digit is considered to be the argument and the end of the sequence, and
+.Dv ESCAPE_IGNORE
+is returned.
+.Pp
+Such ASCII character escape sequences can be rendered using the function
+.Fn mchars_num2char
+described in the
+.Xr mchars_alloc 3
+manual.
+.It Dv ESCAPE_OVERSTRIKE
+The escape sequence
+.Ic \eo
+followed by an argument delimited by an arbitrary character.
+.It Dv ESCAPE_IGNORE
+.Bl -bullet -width 2n
+.It
+The escape sequence
+.Ic \es
+followed by an argument in standard form or by an argument delimited
+by the single quote character:
+.Ic \es' , \es[ , \es( , \es Ns Ar a .
+As a special exception, an optional
+.Sq +
+or
+.Sq \-
+character is allowed after the
+.Sq s
+for all forms.
+.It
+The escape sequences
+.Ic \eF ,
+.Ic \eg ,
+.Ic \ek ,
+.Ic \eM ,
+.Ic \em ,
+.Ic \en ,
+.Ic \eV ,
+and
+.Ic \eY
+followed by an argument in standard form.
+.It
+The escape sequences
+.Ic \eA ,
+.Ic \eb ,
+.Ic \eD ,
+.Ic \eR ,
+.Ic \eX ,
+and
+.Ic \eZ
+followed by an argument delimited by an arbitrary character.
+.It
+The escape sequences
+.Ic \eH ,
+.Ic \eh ,
+.Ic \eL ,
+.Ic \el ,
+.Ic \eS ,
+.Ic \ev ,
+and
+.Ic \ex
+followed by an argument delimited by a character that cannot occur
+in numerical expressions.
+However, if any character that can occur in numerical expressions
+is found instead of a delimiter, the sequence is considered to end
+with that character, and
+.Dv ESCAPE_ERROR
+is returned.
+.El
+.It Dv ESCAPE_ERROR
+Escape sequences taking an argument but not matching any of the above patterns.
+In particular, that happens if the end of the logical input line
+is reached before the end of the argument.
+.El
+.Pp
+For sequences that do not take an argument, the function
+.Fn mandoc_escape
+returns one of the following values:
+.Bl -tag -width 2n
+.It Dv ESCAPE_SKIPCHAR
+The escape sequence
+.Qq \ez .
+.It Dv ESCAPE_NOSPACE
+The escape sequence
+.Qq \ec .
+.It Dv ESCAPE_IGNORE
+The escape sequences
+.Qq \ed
+and
+.Qq \eu .
+.El
+.Sh FILES
+This function is implemented in
+.Pa mandoc.c .
+.Sh SEE ALSO
+.Xr mchars_alloc 3 ,
+.Xr mandoc_char 7 ,
+.Xr roff 7
+.Sh HISTORY
+This function has been available since mandoc 1.11.2.
+.Sh AUTHORS
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org
+.Sh BUGS
+The function doesn't cleanly distinguish between sequences that are
+valid and supported, valid and ignored, valid and unsupported,
+syntactically invalid, or undefined.
+For sequences that are ignored or unsupported, it doesn't tell
+whether that deficiency is likely to cause major formatting problems
+and/or loss of document content.
+The function is already rather complicated and still parses some
+sequences incorrectly.
+.
+.ig
+For these sequences, the list given below specifies a starting string
+and either the length of the argument or an ending character.
+The argument starts after the starting string.
+In the former case, the sequence ends with the end of the argument.
+In the latter case, the argument ends before the ending character,
+and the sequence ends with the ending character.
+..

Added: vendor/mandoc/dist/mandoc_headers.3
===================================================================
--- vendor/mandoc/dist/mandoc_headers.3	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_headers.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,570 @@
+.Dd $Mdocdate: July 8 2017 $
+.Dt MANDOC_HEADERS 3
+.Os
+.Sh NAME
+.Nm mandoc_headers
+.Nd ordering of mandoc include files
+.Sh DESCRIPTION
+To support a cleaner coding style, the mandoc header files do not
+contain any include directives and do not guard against multiple
+inclusion.
+The application developer has to make sure that the headers are
+included in a proper order, and that no header is included more
+than once.
+.Pp
+The headers and functions form three major groups:
+.Sx Parser interface ,
+.Sx Parser internals ,
+and
+.Sx Formatter interface .
+.Pp
+Various rules are given below prohibiting the inclusion of certain
+combinations of headers into the same file.
+The intention is to keep the following functional components
+separate from each other:
+.Pp
+.Bl -dash -offset indent -compact
+.It
+.Xr mdoc 7
+parser
+.It
+.Xr man 7
+parser
+.It
+.Xr roff 7
+parser
+.It
+.Xr tbl 7
+parser
+.It
+.Xr eqn 7
+parser
+.It
+terminal formatters
+.It
+HTML formatters
+.It
+search tools
+.El
+.Pp
+Note that mere usage of an opaque struct type does
+.Em not
+require inclusion of the header where that type is defined.
+.Ss Parser interface
+Each of the following headers can be included without including
+any other mandoc header.
+These headers should be included before any other mandoc headers.
+.Bl -tag -width Ds
+.It Qq Pa mandoc_aux.h
+Requires
+.In sys/types.h
+for
+.Vt size_t .
+.Pp
+Provides the utility functions documented in
+.Xr mandoc_malloc 3 .
+.It Qq Pa mandoc_ohash.h
+Requires
+.In stddef.h
+for
+.Vt ptrdiff_t
+and
+.In stdint.h
+for
+.Vt uint32_t .
+.Pp
+Includes
+.In ohash.h
+and provides
+.Fn mandoc_ohash_init .
+.It Qq Pa mandoc.h
+Requires
+.In sys/types.h
+for
+.Vt size_t .
+.Pp
+Provides
+.Vt enum mandoc_esc ,
+.Vt enum mandocerr ,
+.Vt enum mandoclevel ,
+.Vt enum mandoc_os ,
+.Vt enum tbl_cellt ,
+.Vt enum tbl_datt ,
+.Vt enum tbl_spant ,
+.Vt enum eqn_boxt ,
+.Vt enum eqn_fontt ,
+.Vt enum eqn_pilet ,
+.Vt enum eqn_post ,
+.Vt struct tbl_opts ,
+.Vt struct tbl_cell ,
+.Vt struct tbl_row ,
+.Vt struct tbl_dat ,
+.Vt struct tbl_span ,
+.Vt struct eqn_box ,
+the function prototype typedef
+.Fn mandocmsg ,
+the function
+.Xr mandoc_escape 3 ,
+the functions described in
+.Xr mchars_alloc 3 ,
+and the functions
+.Fn mparse_*
+described in
+.Xr mandoc 3 .
+.Pp
+Uses the opaque type
+.Vt struct mparse
+from
+.Pa read.c
+for function prototypes.
+Uses the type
+.Vt struct roff_man
+from
+.Pa roff.h
+as an opaque type for function prototypes.
+.It Qq Pa mandoc_xr.h
+Provides
+.Vt struct mandoc_xr
+and the functions
+.Fn mandoc_xr_reset ,
+.Fn mandoc_xr_add ,
+.Fn mandoc_xr_get ,
+and
+.Fn mandoc_xr_free .
+.It Qq Pa roff.h
+Requires
+.Qq Pa mandoc_ohash.h
+for
+.Vt struct ohash
+and
+.Qq Pa mandoc.h
+for
+.Vt enum mandoc_os .
+.Pp
+Provides
+.Vt enum mdoc_endbody ,
+.Vt enum roff_macroset ,
+.Vt enum roff_next ,
+.Vt enum roff_sec ,
+.Vt enum roff_tok ,
+.Vt enum roff_type ,
+.Vt struct roff_man ,
+.Vt struct roff_meta ,
+.Vt struct roff_node ,
+the constant array
+.Va roff_name
+and the functions
+.Fn deroff ,
+.Fn roffhash_alloc ,
+.Fn roffhash_find ,
+.Fn roffhash_free ,
+and
+.Fn roff_validate .
+.Pp
+Uses pointers to the types
+.Vt struct mdoc_arg
+and
+.Vt union mdoc_data
+from
+.Pa mdoc.h
+as opaque struct members.
+.El
+.Pp
+The following two require
+.Qq Pa roff.h
+but no other mandoc headers.
+Afterwards, any other mandoc headers can be included as needed.
+.Bl -tag -width Ds
+.It Qq Pa mdoc.h
+Requires
+.In sys/types.h
+for
+.Vt size_t .
+.Pp
+Provides
+.Vt enum mdocargt ,
+.Vt enum mdoc_auth ,
+.Vt enum mdoc_disp ,
+.Vt enum mdoc_font ,
+.Vt enum mdoc_list ,
+.Vt struct mdoc_argv ,
+.Vt struct mdoc_arg ,
+.Vt struct mdoc_an ,
+.Vt struct mdoc_bd ,
+.Vt struct mdoc_bf ,
+.Vt struct mdoc_bl ,
+.Vt struct mdoc_rs ,
+.Vt union mdoc_data ,
+and the functions
+.Fn mdoc_*
+described in
+.Xr mandoc 3 .
+.Pp
+Uses the type
+.Vt struct roff_man
+from
+.Pa roff.h
+as an opaque type for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa libman.h
+or
+.Pa libroff.h .
+.It Qq Pa man.h
+Provides the functions
+.Fn man_*
+described in
+.Xr mandoc 3 .
+.Pp
+Uses the opaque type
+.Vt struct mparse
+from
+.Pa read.c
+for function prototypes.
+Uses the type
+.Vt struct roff_man
+from
+.Pa roff.h
+as an opaque type for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa libmdoc.h
+or
+.Pa libroff.h .
+.El
+.Ss Parser internals
+The following headers require inclusion of a parser interface header
+before they can be included.
+All parser interface headers should precede all parser internal headers.
+When any parser internal headers are included, the same file should
+not include any formatter headers.
+.Bl -tag -width Ds
+.It Qq Pa libmandoc.h
+Requires
+.In sys/types.h
+for
+.Vt size_t
+and
+.Qq Pa mandoc.h
+for
+.Vt enum mandocerr .
+.Pp
+Provides
+.Vt enum rofferr ,
+.Vt struct buf ,
+utility functions needed by multiple parsers,
+and the top-level functions to call the parsers.
+.Pp
+Uses the opaque types
+.Vt struct mparse
+from
+.Pa read.c
+and
+.Vt struct roff
+from
+.Pa roff.c
+for function prototypes.
+Uses the type
+.Vt struct roff_man
+from
+.Pa roff.h
+as an opaque type for function prototypes.
+.It Qq Pa roff_int.h
+Requires
+.Qq Pa roff.h
+for
+.Vt enum roff_type .
+.Pp
+Provides functions named
+.Fn roff_*
+to handle roff nodes and the two special functions
+.Fn man_breakscope
+and
+.Fn mdoc_argv_free
+because the latter two are needed by
+.Qq Pa roff.c .
+.Pp
+Uses the types
+.Vt struct roff_man
+and
+.Vt struct roff_node
+from
+.Pa roff.h
+and
+.Vt struct mdoc_arg
+from
+.Pa mdoc.h
+as opaque types for function prototypes.
+.It Qq Pa libmdoc.h
+Requires
+.Qq Pa roff.h
+for
+.Vt enum roff_tok
+and
+.Qq Pa mdoc.h
+for
+.Vt enum mdoc_*
+and
+.Vt struct mdoc_* .
+.Pp
+Provides
+.Vt enum margserr ,
+.Vt enum mdelim ,
+.Vt struct mdoc_macro ,
+and many functions internal to the
+.Xr mdoc 7
+parser.
+.Pp
+Uses the opaque type
+.Vt struct mparse
+from
+.Pa read.c .
+Uses the types
+.Vt struct roff_man
+and
+.Vt struct roff_node
+from
+.Pa roff.h
+as opaque types for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa man.h ,
+.Pa libman.h ,
+or
+.Pa libroff.h .
+.It Qq Pa libman.h
+Requires
+.Qq Pa roff.h
+for
+.Vt enum roff_tok .
+.Pp
+Provides
+.Vt struct man_macro
+and some functions internal to the
+.Xr man 7
+parser.
+.Pp
+Uses the types
+.Vt struct roff_man
+and
+.Vt struct roff_node
+from
+.Pa roff.h
+as opaque types for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa mdoc.h ,
+.Pa libmdoc.h ,
+or
+.Pa libroff.h .
+.It Qq Pa libroff.h
+Requires
+.In sys/types.h
+for
+.Vt size_t
+and
+.Qq Pa mandoc.h
+for
+.Vt struct tbl_*
+and
+.Vt struct eqn_box .
+.Pp
+Provides
+.Vt enum tbl_part ,
+.Vt struct tbl_node ,
+.Vt struct eqn_def ,
+.Vt struct eqn_node ,
+and many functions internal to the
+.Xr tbl 7
+and
+.Xr eqn 7
+parsers.
+.Pp
+Uses the opaque type
+.Vt struct mparse
+from
+.Pa read.c .
+.Pp
+When this header is included, the same file should not include
+.Pa man.h ,
+.Pa mdoc.h ,
+.Pa libman.h ,
+or
+.Pa libmdoc.h .
+.El
+.Ss Formatter interface
+These headers should be included after any parser interface headers.
+No parser internal headers should be included by the same file.
+.Bl -tag -width Ds
+.It Qq Pa out.h
+Requires
+.In sys/types.h
+for
+.Vt size_t .
+.Pp
+Provides
+.Vt enum roffscale ,
+.Vt struct roffcol ,
+.Vt struct roffsu ,
+.Vt struct rofftbl ,
+.Fn a2roffsu ,
+and
+.Fn tblcalc .
+.Pp
+Uses
+.Vt struct tbl_span
+from
+.Pa mandoc.h
+as an opaque type for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa mansearch.h .
+.It Qq Pa term.h
+Requires
+.In sys/types.h
+for
+.Vt size_t
+and
+.Qq Pa out.h
+for
+.Vt struct roffsu
+and
+.Vt struct rofftbl .
+.Pp
+Provides
+.Vt enum termenc ,
+.Vt enum termfont ,
+.Vt enum termtype ,
+.Vt struct termp_tbl ,
+.Vt struct termp ,
+.Fn roff_term_pre ,
+and many terminal formatting functions.
+.Pp
+Uses the opaque type
+.Vt struct termp_ps
+from
+.Pa term_ps.c .
+Uses
+.Vt struct tbl_span
+and
+.Vt struct eqn_box
+from
+.Pa mandoc.h
+and
+.Vt struct roff_meta
+and
+.Vt struct roff_node
+from
+.Pa roff.h
+as opaque types for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa html.h
+or
+.Pa mansearch.h .
+.It Qq Pa html.h
+Requires
+.In sys/types.h
+for
+.Vt size_t
+and
+.Qq Pa out.h
+for
+.Vt struct roffsu
+and
+.Vt struct rofftbl .
+.Pp
+Provides
+.Vt enum htmltag ,
+.Vt enum htmlattr ,
+.Vt enum htmlfont ,
+.Vt struct tag ,
+.Vt struct tagq ,
+.Vt struct htmlpair ,
+.Vt struct html ,
+.Fn roff_html_pre ,
+and many HTML formatting functions.
+.Pp
+Uses
+.Vt struct tbl_span
+and
+.Vt struct eqn_box
+from
+.Pa mandoc.h
+and
+.Vt struct roff_node
+from
+.Pa roff.h
+as opaque types for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa term.h
+or
+.Pa mansearch.h .
+.It Qq Pa tag.h
+Requires
+.In sys/types.h
+for
+.Vt size_t .
+.Pp
+Provides an interface to generate
+.Xr ctags 1
+files for the
+.Ic :t
+functionality mentioned in
+.Xr man 1 .
+.It Qq Pa main.h
+Provides the top level steering functions for all formatters.
+.Pp
+Uses the type
+.Vt struct roff_man
+from
+.Pa roff.h
+as an opaque type for function prototypes.
+.It Qq Pa manconf.h
+Requires
+.In sys/types.h
+for
+.Vt size_t .
+.Pp
+Provides
+.Vt struct manconf ,
+.Vt struct manpaths ,
+.Vt struct manoutput ,
+and the functions
+.Fn manconf_parse ,
+.Fn manconf_output ,
+.Fn manconf_free ,
+and
+.Fn manpath_base .
+.It Qq Pa mansearch.h
+Requires
+.In sys/types.h
+for
+.Vt size_t
+and
+.In stdint.h
+for
+.Vt uint64_t .
+.Pp
+Provides
+.Vt enum argmode ,
+.Vt struct manpage ,
+.Vt struct mansearch ,
+and the functions
+.Fn mansearch
+and
+.Fn mansearch_free .
+.Pp
+Uses
+.Vt struct manpaths
+from
+.Pa manconf.h
+as an opaque type for function prototypes.
+.Pp
+When this header is included, the same file should not include
+.Pa out.h ,
+.Pa term.h ,
+or
+.Pa html.h .
+.El

Added: vendor/mandoc/dist/mandoc_html.3
===================================================================
--- vendor/mandoc/dist/mandoc_html.3	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_html.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,385 @@
+.\"	$Id: mandoc_html.3,v 1.10 2017/07/15 17:57:51 schwarze Exp $
+.\"
+.\" Copyright (c) 2014, 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 15 2017 $
+.Dt MANDOC_HTML 3
+.Os
+.Sh NAME
+.Nm mandoc_html
+.Nd internals of the mandoc HTML formatter
+.Sh SYNOPSIS
+.In "html.h"
+.Ft void
+.Fn print_gen_decls "struct html *h"
+.Ft void
+.Fn print_gen_head "struct html *h"
+.Ft struct tag *
+.Fo print_otag
+.Fa "struct html *h"
+.Fa "enum htmltag tag"
+.Fa "const char *fmt"
+.Fa ...
+.Fc
+.Ft void
+.Fo print_tagq
+.Fa "struct html *h"
+.Fa "const struct tag *until"
+.Fc
+.Ft void
+.Fo print_stagq
+.Fa "struct html *h"
+.Fa "const struct tag *suntil"
+.Fc
+.Ft void
+.Fo print_text
+.Fa "struct html *h"
+.Fa "const char *word"
+.Fc
+.Ft char *
+.Fo html_make_id
+.Fa "const struct roff_node *n"
+.Fc
+.Ft int
+.Fo html_strlen
+.Fa "const char *cp"
+.Fc
+.Sh DESCRIPTION
+The mandoc HTML formatter is not a formal library.
+However, as it is compiled into more than one program, in particular
+.Xr mandoc 1
+and
+.Xr man.cgi 8 ,
+and because it may be security-critical in some contexts,
+some documentation is useful to help to use it correctly and
+to prevent XSS vulnerabilities.
+.Pp
+The formatter produces HTML output on the standard output.
+Since proper escaping is usually required and best taken care of
+at one central place, the language-specific formatters
+.Po
+.Pa *_html.c ,
+see
+.Sx FILES
+.Pc
+are not supposed to print directly to
+.Dv stdout
+using functions like
+.Xr printf 3 ,
+.Xr putc 3 ,
+.Xr puts 3 ,
+or
+.Xr write 2 .
+Instead, they are expected to use the output functions declared in
+.Pa html.h
+and implemented as part of the main HTML formatting engine in
+.Pa html.c .
+.Ss Data structures
+These structures are declared in
+.Pa html.h .
+.Bl -tag -width Ds
+.It Vt struct html
+Internal state of the HTML formatter.
+.It Vt struct tag
+One entry for the LIFO stack of HTML elements.
+Members are
+.Fa "enum htmltag tag"
+and
+.Fa "struct tag *next" .
+.El
+.Ss Private interface functions
+The function
+.Fn print_gen_decls
+prints the opening
+.Ao Pf \&? Ic xml ? Ac
+and
+.Aq Pf \&! Ic DOCTYPE
+declarations required for the current document type.
+.Pp
+The function
+.Fn print_gen_head
+prints the opening
+.Aq Ic META
+and
+.Aq Ic LINK
+elements for the document
+.Aq Ic HEAD ,
+using the
+.Fa style
+member of
+.Fa h
+unless that is
+.Dv NULL .
+It uses
+.Fn print_otag
+which takes care of properly encoding attributes,
+which is relevant for the
+.Fa style
+link in particular.
+.Pp
+The function
+.Fn print_otag
+prints the start tag of an HTML element with the name
+.Fa tag ,
+optionally including the attributes specified by
+.Fa fmt .
+If
+.Fa fmt
+is the empty string, no attributes are written.
+Each letter of
+.Fa fmt
+specifies one attribute to write.
+Most attributes require one
+.Va char *
+argument which becomes the value of the attribute.
+The arguments have to be given in the same order as the attribute letters.
+If an argument is
+.Dv NULL ,
+the respective attribute is not written.
+.Bl -tag -width 1n -offset indent
+.It Cm c
+Print a
+.Cm class
+attribute.
+This attribute letter can optionally be followed by the modifier letter
+.Cm T .
+In that case, a
+.Cm title
+attribute with the same value is also printed.
+.It Cm h
+Print a
+.Cm href
+attribute.
+This attribute letter can optionally be followed by a modifier letter.
+If followed by
+.Cm R ,
+it formats the link as a local one by prefixing a
+.Sq #
+character.
+If followed by
+.Cm I ,
+it interpretes the argument as a header file name
+and generates a link using the
+.Xr mandoc 1
+.Fl O Cm includes
+option.
+If followed by
+.Cm M ,
+it takes two arguments instead of one, a manual page name and
+section, and formats them as a link to a manual page using the
+.Xr mandoc 1
+.Fl O Cm man
+option.
+.It Cm i
+Print an
+.Cm id
+attribute.
+.It Cm \&?
+Print an arbitrary attribute.
+This format letter requires two
+.Vt char *
+arguments, the attribute name and the value.
+The name must not be
+.Dv NULL .
+.It Cm s
+Print a
+.Cm style
+attribute.
+If present, it must be the last format letter.
+In contrast to the other format letters, this one does not yet
+print the value and does not take an argument.
+Instead, the rest of the format string consists of pairs of
+argument type letters and style name letters.
+.El
+.Pp
+Argument type letters each require one argument as follows:
+.Bl -tag -width 1n -offset indent
+.It Cm h
+Requires one
+.Vt int
+argument, interpreted as a horizontal length in units of
+.Dv SCALE_EN .
+.It Cm s
+Requires one
+.Vt char *
+argument, used as a style value.
+.It Cm u
+Requires one
+.Vt struct roffsu *
+argument, used as a length.
+.It Cm w
+Requires one
+.Vt char *
+argument, interpreted as an
+.Xr mdoc 7 Ns -style
+width specifier.
+If the argument is
+.Dv NULL ,
+nothing is printed for this pair.
+.Pp
+The
+.Cm w
+argument type letter can optionally be followed by one, two, or three
+modifier letters.
+The modifier
+.Cm *
+suppresses printing of the pair if the argument matches 6n.
+The modifier
+.Cm +
+increases the width by 20% to make even bold text fit
+and adds three units for padding between columns.
+The modifier
+.Cm \-
+makes the width negative by multiplying it with \-1.
+.El
+.Pp
+Style name letters decide what to do with the preceding argument:
+.Bl -tag -width 1n -offset indent
+.It Cm h
+Set
+.Cm height
+to the given length.
+.It Cm i
+Set
+.Cm text-indent
+to the given length.
+.It Cm l
+Set
+.Cm margin-left
+to the given length.
+.It Cm w
+Set
+.Cm width
+to the given length.
+.It Cm W
+Set
+.Cm min-width
+to the given length.
+.It Cm \&?
+The special pair
+.Cm s?
+requires two
+.Vt char *
+arguments.
+The first is the style name, the second its value.
+The style name must not be
+.Dv NULL .
+.El
+.Pp
+.Fn print_otag
+uses the private function
+.Fn print_encode
+to take care of HTML encoding.
+If required by the element type, it remembers in
+.Fa h
+that the element is open.
+The function
+.Fn print_tagq
+is used to close out all open elements up to and including
+.Fa until ;
+.Fn print_stagq
+is a variant to close out all open elements up to but excluding
+.Fa suntil .
+.Pp
+The function
+.Fn print_text
+prints HTML element content.
+It uses the private function
+.Fn print_encode
+to take care of HTML encoding.
+If the document has requested a non-standard font, for example using a
+.Xr roff 7
+.Ic \ef
+font escape sequence,
+.Fn print_text
+wraps
+.Fa word
+in an HTML font selection element using the
+.Fn print_otag
+and
+.Fn print_tagq
+functions.
+.Pp
+The function
+.Fn html_make_id
+takes a node containing one or more text children
+and returns a newly allocated string containing the concatenation
+of the child strings, with blanks replaced by underscores.
+If the node
+.Fa n
+contains any non-text child node,
+.Fn html_make_id
+returns
+.Dv NULL
+instead.
+The caller is responsible for freeing the returned string.
+.Pp
+The function
+.Fn html_strlen
+counts the number of characters in
+.Fa cp .
+It is used as a crude estimate of the width needed to display a string.
+.Pp
+The functions
+.Fn print_eqn ,
+.Fn print_tbl ,
+and
+.Fn print_tblclose
+are not yet documented.
+.Sh FILES
+.Bl -tag -width mandoc_aux.c -compact
+.It Pa main.h
+declarations of public functions for use by the main program,
+not yet documented
+.It Pa html.h
+declarations of data types and private functions
+for use by language-specific HTML formatters
+.It Pa html.c
+main HTML formatting engine and utility functions
+.It Pa mdoc_html.c
+.Xr mdoc 7
+HTML formatter
+.It Pa man_html.c
+.Xr man 7
+HTML formatter
+.It Pa tbl_html.c
+.Xr tbl 7
+HTML formatter
+.It Pa eqn_html.c
+.Xr eqn 7
+HTML formatter
+.It Pa out.h
+declarations of data types and private functions
+for shared use by all mandoc formatters,
+not yet documented
+.It Pa out.c
+private functions for shared use by all mandoc formatters
+.It Pa mandoc_aux.h
+declarations of common mandoc utility functions, see
+.Xr mandoc 3
+.It Pa mandoc_aux.c
+implementation of common mandoc utility functions
+.El
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr mandoc 3 ,
+.Xr man.cgi 8
+.Sh AUTHORS
+.An -nosplit
+The mandoc HTML formatter was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv .
+It is maintained by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org ,
+who also wrote this manual.

Added: vendor/mandoc/dist/mandoc_malloc.3
===================================================================
--- vendor/mandoc/dist/mandoc_malloc.3	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_malloc.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,191 @@
+.\"	$Id: mandoc_malloc.3,v 1.2 2016/07/07 19:19:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2014 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 7 2016 $
+.Dt MANDOC_MALLOC 3
+.Os
+.Sh NAME
+.Nm mandoc_malloc ,
+.Nm mandoc_realloc ,
+.Nm mandoc_reallocarray ,
+.Nm mandoc_calloc ,
+.Nm mandoc_strdup ,
+.Nm mandoc_strndup ,
+.Nm mandoc_asprintf
+.Nd memory allocation function wrappers used in the mandoc library
+.Sh SYNOPSIS
+.In sys/types.h
+.In mandoc_aux.h
+.Ft "void *"
+.Fo mandoc_malloc
+.Fa "size_t size"
+.Fc
+.Ft "void *"
+.Fo mandoc_realloc
+.Fa "void *ptr"
+.Fa "size_t size"
+.Fc
+.Ft "void *"
+.Fo mandoc_reallocarray
+.Fa "void *ptr"
+.Fa "size_t nmemb"
+.Fa "size_t size"
+.Fc
+.Ft "void *"
+.Fo mandoc_calloc
+.Fa "size_t nmemb"
+.Fa "size_t size"
+.Fc
+.Ft "char *"
+.Fo mandoc_strdup
+.Fa "const char *s"
+.Fc
+.Ft "char *"
+.Fo mandoc_strndup
+.Fa "const char *s"
+.Fa "size_t maxlen"
+.Fc
+.Ft int
+.Fo mandoc_asprintf
+.Fa "char **ret"
+.Fa "const char *format"
+.Fa "..."
+.Fc
+.Sh DESCRIPTION
+These functions call the libc functions of the same names, passing
+through their return values when successful.
+In case of failure, they do not return, but instead call
+.Xr err 3 .
+They can be used both internally by any code in the mandoc libraries
+and externally by programs using that library, for example
+.Xr mandoc 1 ,
+.Xr man 1 ,
+.Xr apropos 1 ,
+.Xr makewhatis 8 ,
+and
+.Xr man.cgi 8 .
+.Pp
+The function
+.Fn mandoc_malloc
+allocates one new object, leaving the memory uninitialized.
+The functions
+.Fn mandoc_realloc
+and
+.Fn mandoc_reallocarray
+change the size of an existing object or array, possibly moving it.
+When shrinking the size, existing data is truncated; when growing,
+the additional memory is not initialized.
+The function
+.Fn mandoc_calloc
+allocates a new array, initializing it to zero.
+.Pp
+The argument
+.Fa size
+is the size of each object.
+The argument
+.Fa nmemb
+is the new number of objects in the array.
+The argument
+.Fa ptr
+is a pointer to the existing object or array to be resized; if it is
+.Dv NULL ,
+a new object or array is allocated.
+.Pp
+The functions
+.Fn mandoc_strdup
+and
+.Fn mandoc_strndup
+copy a string into newly allocated memory.
+For
+.Fn mandoc_strdup ,
+the string pointed to by
+.Fa s
+needs to be NUL-terminated.
+For
+.Fn mandoc_strndup ,
+at most
+.Fa maxlen
+bytes are copied.
+The function
+.Fn mandoc_asprintf
+writes output formatted according to
+.Fa format
+into newly allocated memory and returns a pointer to the result in
+.Fa ret .
+For all three string functions, the result is always NUL-terminated.
+.Pp
+When the objects and strings are no longer needed,
+the pointers returned by these functions can be passed to
+.Xr free 3 .
+.Sh RETURN VALUES
+The function
+.Fn mandoc_asprintf
+always returns the number of characters written, excluding the
+final NUL byte.
+It never returns -1.
+.Pp
+The other functions always return a valid pointer; they never return
+.Dv NULL .
+.Sh FILES
+These functions are implemented in
+.Pa mandoc_aux.c .
+.Sh SEE ALSO
+.Xr asprintf 3 ,
+.Xr err 3 ,
+.Xr malloc 3 ,
+.Xr strdup 3
+.Sh STANDARDS
+The functions
+.Fn malloc ,
+.Fn realloc ,
+and
+.Fn calloc
+are required by
+.St -ansiC .
+The functions
+.Fn strdup
+and
+.Fn strndup
+are required by
+.St -p1003.1-2008 .
+The function
+.Fn asprintf
+is a widespread extension that first appeared in the GNU C library.
+.Pp
+The function
+.Fn reallocarray
+is an extension that first appeared in
+.Ox 5.6 .
+If it is not provided by the operating system, the mandoc build system
+uses a bundled portable implementation.
+.Sh HISTORY
+The functions
+.Fn mandoc_malloc ,
+.Fn mandoc_realloc ,
+.Fn mandoc_calloc ,
+and
+.Fn mandoc_strdup
+have been available since mandoc 1.9.12,
+.Fn mandoc_strndup
+since 1.11.5,
+and
+.Fn mandoc_asprintf
+and
+.Fn mandoc_reallocarray
+since 1.12.4 and 1.13.0.
+.Sh AUTHORS
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org

Added: vendor/mandoc/dist/mandoc_ohash.c
===================================================================
--- vendor/mandoc/dist/mandoc_ohash.c	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_ohash.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,63 @@
+/*	$Id: mandoc_ohash.c,v 1.2 2015/10/19 18:58:47 schwarze Exp $	*/
+/*
+ * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+
+static	void	 *hash_alloc(size_t, void *);
+static	void	 *hash_calloc(size_t, size_t, void *);
+static	void	  hash_free(void *, void *);
+
+
+void
+mandoc_ohash_init(struct ohash *h, unsigned int sz, ptrdiff_t ko)
+{
+	struct ohash_info info;
+
+	info.alloc = hash_alloc;
+	info.calloc = hash_calloc;
+	info.free = hash_free;
+	info.data = NULL;
+	info.key_offset = ko;
+
+	ohash_init(h, sz, &info);
+}
+
+static void *
+hash_alloc(size_t sz, void *arg)
+{
+
+	return mandoc_malloc(sz);
+}
+
+static void *
+hash_calloc(size_t n, size_t sz, void *arg)
+{
+
+	return mandoc_calloc(n, sz);
+}
+
+static void
+hash_free(void *p, void *arg)
+{
+
+	free(p);
+}

Added: vendor/mandoc/dist/mandoc_ohash.h
===================================================================
--- vendor/mandoc/dist/mandoc_ohash.h	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_ohash.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+/*	$Id: mandoc_ohash.h,v 1.2 2015/11/07 14:01:16 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#if HAVE_OHASH
+#include <ohash.h>
+#else
+#include "compat_ohash.h"
+#endif
+
+void		  mandoc_ohash_init(struct ohash *, unsigned int, ptrdiff_t);

Added: vendor/mandoc/dist/mandoc_xr.c
===================================================================
--- vendor/mandoc/dist/mandoc_xr.c	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_xr.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,121 @@
+/*	$Id: mandoc_xr.c,v 1.3 2017/07/02 21:18:29 schwarze Exp $ */
+/*
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "mandoc_xr.h"
+
+static struct ohash	 *xr_hash = NULL;
+static struct mandoc_xr	 *xr_first = NULL;
+static struct mandoc_xr	 *xr_last = NULL;
+
+static void		  mandoc_xr_clear(void);
+
+
+static void
+mandoc_xr_clear(void)
+{
+	struct mandoc_xr	*xr;
+	unsigned int		 slot;
+
+	if (xr_hash == NULL)
+		return;
+	for (xr = ohash_first(xr_hash, &slot); xr != NULL;
+	     xr = ohash_next(xr_hash, &slot))
+		free(xr);
+	ohash_delete(xr_hash);
+}
+
+void
+mandoc_xr_reset(void)
+{
+	if (xr_hash == NULL)
+		xr_hash = mandoc_malloc(sizeof(*xr_hash));
+	else
+		mandoc_xr_clear();
+	mandoc_ohash_init(xr_hash, 5,
+	    offsetof(struct mandoc_xr, hashkey));
+	xr_first = xr_last = NULL;
+}
+
+int
+mandoc_xr_add(const char *sec, const char *name, int line, int pos)
+{
+	struct mandoc_xr	 *xr, *oxr;
+	const char		 *pend;
+	size_t			  ssz, nsz, tsz;
+	unsigned int		  slot;
+	int			  ret;
+	uint32_t		  hv;
+
+	if (xr_hash == NULL)
+		return 0;
+
+	ssz = strlen(sec) + 1;
+	nsz = strlen(name) + 1;
+	tsz = ssz + nsz;
+	xr = mandoc_malloc(sizeof(*xr) + tsz);
+	xr->next = NULL;
+	xr->sec = xr->hashkey;
+	xr->name = xr->hashkey + ssz;
+	xr->line = line;
+	xr->pos = pos;
+	xr->count = 1;
+	memcpy(xr->sec, sec, ssz);
+	memcpy(xr->name, name, nsz);
+
+	pend = xr->hashkey + tsz;
+	hv = ohash_interval(xr->hashkey, &pend);
+	slot = ohash_lookup_memory(xr_hash, xr->hashkey, tsz, hv);
+	if ((oxr = ohash_find(xr_hash, slot)) == NULL) {
+		ohash_insert(xr_hash, slot, xr);
+		if (xr_first == NULL)
+			xr_first = xr;
+		else
+			xr_last->next = xr;
+		xr_last = xr;
+		return 0;
+	}
+
+	oxr->count++;
+	ret = (oxr->line == -1) ^ (xr->line == -1);
+	if (xr->line == -1)
+		oxr->line = -1;
+	free(xr);
+	return ret;
+}
+
+struct mandoc_xr *
+mandoc_xr_get(void)
+{
+	return xr_first;
+}
+
+void
+mandoc_xr_free(void)
+{
+	mandoc_xr_clear();
+	free(xr_hash);
+	xr_hash = NULL;
+}

Added: vendor/mandoc/dist/mandoc_xr.h
===================================================================
--- vendor/mandoc/dist/mandoc_xr.h	                        (rev 0)
+++ vendor/mandoc/dist/mandoc_xr.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+/*	$Id: mandoc_xr.h,v 1.3 2017/07/02 21:18:29 schwarze Exp $ */
+/*
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct	mandoc_xr {
+	struct mandoc_xr *next;
+	char		 *sec;
+	char		 *name;
+	int		  line;  /* Or -1 for this page's own names. */
+	int		  pos;
+	int		  count;
+	char		  hashkey[];
+};
+
+void		  mandoc_xr_reset(void);
+int		  mandoc_xr_add(const char *, const char *, int, int);
+struct mandoc_xr *mandoc_xr_get(void);
+void		  mandoc_xr_free(void);

Added: vendor/mandoc/dist/mandocd.8
===================================================================
--- vendor/mandoc/dist/mandocd.8	                        (rev 0)
+++ vendor/mandoc/dist/mandocd.8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,198 @@
+.\"	$Id: mandocd.8,v 1.2 2017/03/18 19:56:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: March 18 2017 $
+.Dt MANDOCD 8
+.Os
+.Sh NAME
+.Nm mandocd
+.Nd server process to format manual pages in batch mode
+.Sh SYNOPSIS
+.Nm mandocd
+.Op Fl I Cm os Ns = Ns Ar name
+.Op Fl T Ar output
+.Ar socket_fd
+.Sh DESCRIPTION
+The
+.Nm
+utility formats many manual pages without requiring
+.Xr fork 2
+and
+.Xr exec 3
+overhead in between.
+It does not require listing all the manuals to be formatted on the
+command line, and it supports writing each formatted manual to its
+own file descriptor.
+.Pp
+This server requires that a connected UNIX domain
+.Xr socket 2
+is already present at
+.Xr exec 3
+time.
+Consequently, it cannot be started from the
+.Xr sh 1
+command line because the shell cannot supply such a socket.
+Typically, the socket is created by the parent process using
+.Xr socketpair 2
+before calling
+.Xr fork 2
+and
+.Xr exec 3
+on
+.Nm .
+The parent process will pass the file descriptor number as an argument to
+.Xr exec 3 ,
+formatted as a decimal ASCII-encoded integer.
+See
+.Xr catman 8
+for a typical implementation of a parent process.
+.Pp
+.Nm
+loops reading one-byte messages with
+.Xr recvmsg 2
+from the file descriptor number
+.Ar socket_fd .
+It ignores the byte read and only uses the out-of-band auxiliary
+.Vt struct cmsghdr
+control data, typically supplied by the calling process using
+.Xr CMSG_FIRSTHDR 3 .
+The parent process is expected to pass three file descriptors
+with each dummy byte.
+The first one is used for
+.Xr mdoc 7
+or
+.Xr man 7
+input, the second one for formatted output, and the third one
+for error output.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl I Cm os Ns = Ns Ar name
+Override the default operating system
+.Ar name
+for the
+.Xr mdoc 7
+.Ic \&Os
+and for the
+.Xr man 7
+.Ic TH
+macro.
+.It Fl T Ar output
+Output format.
+The
+.Ar output
+argument can be
+.Cm ascii ,
+.Cm utf8 ,
+or
+.Cm html ;
+see
+.Xr mandoc 1 .
+In
+.Cm html
+output mode, the
+.Cm fragment
+output option is implied.
+Other output options are not supported.
+.El
+.Pp
+After exhausting one input file descriptor, all three file descriptors
+are closed before reading the next dummy byte and control message.
+.Pp
+When a zero-byte message is read, when the
+.Ar socket_fd
+is closed by the parent process,
+or when an error occurs,
+.Nm
+exits.
+.Sh EXIT STATUS
+.Ex -std
+.Pp
+A zero-byte message or a closed
+.Ar socket_fd
+is considered success.
+Possible errors include:
+.Bl -bullet
+.It
+missing, invalid, or excessive
+.Xr exec 3
+arguments
+.It
+.Xr recvmsg 2
+failure, for example due to
+.Er EMSGSIZE
+.It
+missing or unexpected control data, in particular a
+.Fa cmsg_level
+in the
+.Vt struct cmsghdr
+that differs from
+.Dv SOL_SOCKET ,
+a
+.Fa cmsg_type
+that differs from
+.Dv SCM_RIGHTS ,
+or a
+.Fa cmsg_len
+that is not three times the size of an
+.Vt int
+.It
+invalid file descriptors passed in the
+.Xr CMSG_DATA 3
+.It
+resource exhaustion, in particular
+.Xr dup 2
+or
+.Xr malloc 3
+failure
+.El
+.Pp
+Except for memory exhaustion and similar system-level failures,
+parsing and formatting errors do not cause
+.Nm
+to return an error exit status.
+Even after severe parsing errors,
+.Nm
+will simply accept and process the next input file descriptor.
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr mandoc 3 ,
+.Xr catman 8
+.Sh HISTORY
+The
+.Nm
+utility appeared in version 1.14.1 or the
+.Sy mandoc
+toolkit.
+.Sh AUTHORS
+.An -nosplit
+The concept was designed and implemented by
+.An Michael Stapelberg Aq Mt stapelberg at debian.org .
+The
+.Xr mandoc 3
+glue needed to make it a stand-alone process was added by
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .
+.Sh CAVEATS
+If the parsed manual pages contain
+.Xr roff 7
+.Pf . Ic so
+requests,
+.Nm
+needs to be started with the current working directory set to the
+root of the manual page tree.
+Avoid starting it in directories that contain secret files in any
+subdirectories, in particular in the user starting it has read
+access to these secret files.

Added: vendor/mandoc/dist/mandocd.c
===================================================================
--- vendor/mandoc/dist/mandocd.c	                        (rev 0)
+++ vendor/mandoc/dist/mandocd.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,285 @@
+/*	$Id: mandocd.c,v 1.6 2017/06/24 14:38:32 schwarze Exp $ */
+/*
+ * Copyright (c) 2017 Michael Stapelberg <stapelberg at debian.org>
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#if HAVE_CMSG_XPG42
+#define _XPG4_2
+#endif
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "main.h"
+#include "manconf.h"
+
+enum	outt {
+	OUTT_ASCII = 0,
+	OUTT_UTF8,
+	OUTT_HTML
+};
+
+static	void	  process(struct mparse *, enum outt, void *);
+static	int	  read_fds(int, int *);
+static	void	  usage(void) __attribute__((__noreturn__));
+
+
+#define NUM_FDS 3
+static int
+read_fds(int clientfd, int *fds)
+{
+	struct msghdr	 msg;
+	struct iovec	 iov[1];
+	unsigned char	 dummy[1];
+	struct cmsghdr	*cmsg;
+	int		*walk;
+	int		 cnt;
+
+	/* Union used for alignment. */
+	union {
+		uint8_t controlbuf[CMSG_SPACE(NUM_FDS * sizeof(int))];
+		struct cmsghdr align;
+	} u;
+
+	memset(&msg, '\0', sizeof(msg));
+	msg.msg_control = u.controlbuf;
+	msg.msg_controllen = sizeof(u.controlbuf);
+
+	/*
+	 * Read a dummy byte - sendmsg cannot send an empty message,
+	 * even if we are only interested in the OOB data.
+	 */
+
+	iov[0].iov_base = dummy;
+	iov[0].iov_len = sizeof(dummy);
+	msg.msg_iov = iov;
+	msg.msg_iovlen = 1;
+
+	switch (recvmsg(clientfd, &msg, 0)) {
+	case -1:
+		warn("recvmsg");
+		return -1;
+	case 0:
+		return 0;
+	default:
+		break;
+	}
+
+	if ((cmsg = CMSG_FIRSTHDR(&msg)) == NULL) {
+		warnx("CMSG_FIRSTHDR: missing control message");
+		return -1;
+	}
+
+	if (cmsg->cmsg_level != SOL_SOCKET ||
+	    cmsg->cmsg_type != SCM_RIGHTS ||
+	    cmsg->cmsg_len != CMSG_LEN(NUM_FDS * sizeof(int))) {
+		warnx("CMSG_FIRSTHDR: invalid control message");
+		return -1;
+	}
+
+	walk = (int *)CMSG_DATA(cmsg);
+	for (cnt = 0; cnt < NUM_FDS; cnt++)
+		fds[cnt] = *walk++;
+
+	return 1;
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct manoutput	 options;
+	struct mparse		*parser;
+	void			*formatter;
+	const char		*defos;
+	const char		*errstr;
+	int			 clientfd;
+	int			 old_stdin;
+	int			 old_stdout;
+	int			 old_stderr;
+	int			 fds[3];
+	int			 state, opt;
+	enum outt		 outtype;
+
+	defos = NULL;
+	outtype = OUTT_ASCII;
+	while ((opt = getopt(argc, argv, "I:T:")) != -1) {
+		switch (opt) {
+		case 'I':
+			if (strncmp(optarg, "os=", 3) == 0)
+				defos = optarg + 3;
+			else {
+				warnx("-I %s: Bad argument", optarg);
+				usage();
+			}
+			break;
+		case 'T':
+			if (strcmp(optarg, "ascii") == 0)
+				outtype = OUTT_ASCII;
+			else if (strcmp(optarg, "utf8") == 0)
+				outtype = OUTT_UTF8;
+			else if (strcmp(optarg, "html") == 0)
+				outtype = OUTT_HTML;
+			else {
+				warnx("-T %s: Bad argument", optarg);
+				usage();
+			}
+			break;
+		default:
+			usage();
+		}
+	}
+
+	if (argc > 0) {
+		argc -= optind;
+		argv += optind;
+	}
+	if (argc != 1)
+		usage();
+
+	errstr = NULL;
+	clientfd = strtonum(argv[0], 3, INT_MAX, &errstr);
+	if (errstr)
+		errx(1, "file descriptor %s %s", argv[1], errstr);
+
+	mchars_alloc();
+	parser = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1,
+	    MANDOCERR_MAX, NULL, MANDOC_OS_OTHER, defos);
+
+	memset(&options, 0, sizeof(options));
+	switch (outtype) {
+	case OUTT_ASCII:
+		formatter = ascii_alloc(&options);
+		break;
+	case OUTT_UTF8:
+		formatter = utf8_alloc(&options);
+		break;
+	case OUTT_HTML:
+		options.fragment = 1;
+		formatter = html_alloc(&options);
+		break;
+	}
+
+	state = 1;  /* work to do */
+	fflush(stdout);
+	fflush(stderr);
+	if ((old_stdin = dup(STDIN_FILENO)) == -1 ||
+	    (old_stdout = dup(STDOUT_FILENO)) == -1 ||
+	    (old_stderr = dup(STDERR_FILENO)) == -1) {
+		warn("dup");
+		state = -1;  /* error */
+	}
+
+	while (state == 1 && (state = read_fds(clientfd, fds)) == 1) {
+		if (dup2(fds[0], STDIN_FILENO) == -1 ||
+		    dup2(fds[1], STDOUT_FILENO) == -1 ||
+		    dup2(fds[2], STDERR_FILENO) == -1) {
+			warn("dup2");
+			state = -1;
+			break;
+		}
+
+		close(fds[0]);
+		close(fds[1]);
+		close(fds[2]);
+
+		process(parser, outtype, formatter);
+		mparse_reset(parser);
+
+		fflush(stdout);
+		fflush(stderr);
+		/* Close file descriptors by restoring the old ones. */
+		if (dup2(old_stderr, STDERR_FILENO) == -1 ||
+		    dup2(old_stdout, STDOUT_FILENO) == -1 ||
+		    dup2(old_stdin, STDIN_FILENO) == -1) {
+			warn("dup2");
+			state = -1;
+			break;
+		}
+	}
+
+	close(clientfd);
+	switch (outtype) {
+	case OUTT_ASCII:
+	case OUTT_UTF8:
+		ascii_free(formatter);
+		break;
+	case OUTT_HTML:
+		html_free(formatter);
+		break;
+	}
+	mparse_free(parser);
+	mchars_free();
+	return state == -1 ? 1 : 0;
+}
+
+static void
+process(struct mparse *parser, enum outt outtype, void *formatter)
+{
+	struct roff_man	 *man;
+
+	mparse_readfd(parser, STDIN_FILENO, "<unixfd>");
+	mparse_result(parser, &man, NULL);
+
+	if (man == NULL)
+		return;
+
+	if (man->macroset == MACROSET_MDOC) {
+		mdoc_validate(man);
+		switch (outtype) {
+		case OUTT_ASCII:
+		case OUTT_UTF8:
+			terminal_mdoc(formatter, man);
+			break;
+		case OUTT_HTML:
+			html_mdoc(formatter, man);
+			break;
+		}
+	}
+	if (man->macroset == MACROSET_MAN) {
+		man_validate(man);
+		switch (outtype) {
+		case OUTT_ASCII:
+		case OUTT_UTF8:
+			terminal_man(formatter, man);
+			break;
+		case OUTT_HTML:
+			html_man(formatter, man);
+			break;
+		}
+	}
+}
+
+void
+usage(void)
+{
+	fprintf(stderr, "usage: mandocd [-I os=name] [-T output] socket_fd\n");
+	exit(1);
+}

Added: vendor/mandoc/dist/mandocdb.c
===================================================================
--- vendor/mandoc/dist/mandocdb.c	                        (rev 0)
+++ vendor/mandoc/dist/mandocdb.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2338 @@
+/*	$Id: mandocdb.c,v 1.253 2017/07/28 14:48:25 schwarze Exp $ */
+/*
+ * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011-2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2016 Ed Maste <emaste at freebsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <assert.h>
+#include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#if HAVE_FTS
+#include <fts.h>
+#else
+#include "compat_fts.h"
+#endif
+#include <limits.h>
+#if HAVE_SANDBOX_INIT
+#include <sandbox.h>
+#endif
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "manconf.h"
+#include "mansearch.h"
+#include "dba_array.h"
+#include "dba.h"
+
+extern const char *const mansearch_keynames[];
+
+enum	op {
+	OP_DEFAULT = 0, /* new dbs from dir list or default config */
+	OP_CONFFILE, /* new databases from custom config file */
+	OP_UPDATE, /* delete/add entries in existing database */
+	OP_DELETE, /* delete entries from existing database */
+	OP_TEST /* change no databases, report potential problems */
+};
+
+struct	str {
+	const struct mpage *mpage; /* if set, the owning parse */
+	uint64_t	 mask; /* bitmask in sequence */
+	char		 key[]; /* rendered text */
+};
+
+struct	inodev {
+	ino_t		 st_ino;
+	dev_t		 st_dev;
+};
+
+struct	mpage {
+	struct inodev	 inodev;  /* used for hashing routine */
+	struct dba_array *dba;
+	char		*sec;     /* section from file content */
+	char		*arch;    /* architecture from file content */
+	char		*title;   /* title from file content */
+	char		*desc;    /* description from file content */
+	struct mpage	*next;    /* singly linked list */
+	struct mlink	*mlinks;  /* singly linked list */
+	int		 name_head_done;
+	enum form	 form;    /* format from file content */
+};
+
+struct	mlink {
+	char		 file[PATH_MAX]; /* filename rel. to manpath */
+	char		*dsec;    /* section from directory */
+	char		*arch;    /* architecture from directory */
+	char		*name;    /* name from file name (not empty) */
+	char		*fsec;    /* section from file name suffix */
+	struct mlink	*next;    /* singly linked list */
+	struct mpage	*mpage;   /* parent */
+	int		 gzip;	  /* filename has a .gz suffix */
+	enum form	 dform;   /* format from directory */
+	enum form	 fform;   /* format from file name suffix */
+};
+
+typedef	int (*mdoc_fp)(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+
+struct	mdoc_handler {
+	mdoc_fp		 fp; /* optional handler */
+	uint64_t	 mask;  /* set unless handler returns 0 */
+	int		 taboo;  /* node flags that must not be set */
+};
+
+
+int		 mandocdb(int, char *[]);
+
+static	void	 dbadd(struct dba *, struct mpage *);
+static	void	 dbadd_mlink(const struct mlink *mlink);
+static	void	 dbprune(struct dba *);
+static	void	 dbwrite(struct dba *);
+static	void	 filescan(const char *);
+#if HAVE_FTS_COMPARE_CONST
+static	int	 fts_compare(const FTSENT *const *, const FTSENT *const *);
+#else
+static	int	 fts_compare(const FTSENT **, const FTSENT **);
+#endif
+static	void	 mlink_add(struct mlink *, const struct stat *);
+static	void	 mlink_check(struct mpage *, struct mlink *);
+static	void	 mlink_free(struct mlink *);
+static	void	 mlinks_undupe(struct mpage *);
+static	void	 mpages_free(void);
+static	void	 mpages_merge(struct dba *, struct mparse *);
+static	void	 parse_cat(struct mpage *, int);
+static	void	 parse_man(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	void	 parse_mdoc(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_head(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_Fd(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	void	 parse_mdoc_fname(struct mpage *, const struct roff_node *);
+static	int	 parse_mdoc_Fn(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_Fo(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_Nd(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_Nm(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_Sh(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_Va(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	int	 parse_mdoc_Xr(struct mpage *, const struct roff_meta *,
+			const struct roff_node *);
+static	void	 putkey(const struct mpage *, char *, uint64_t);
+static	void	 putkeys(const struct mpage *, char *, size_t, uint64_t);
+static	void	 putmdockey(const struct mpage *,
+			const struct roff_node *, uint64_t, int);
+static	int	 render_string(char **, size_t *);
+static	void	 say(const char *, const char *, ...)
+			__attribute__((__format__ (__printf__, 2, 3)));
+static	int	 set_basedir(const char *, int);
+static	int	 treescan(void);
+static	size_t	 utf8(unsigned int, char [7]);
+
+static	int		 nodb; /* no database changes */
+static	int		 mparse_options; /* abort the parse early */
+static	int		 use_all; /* use all found files */
+static	int		 debug; /* print what we're doing */
+static	int		 warnings; /* warn about crap */
+static	int		 write_utf8; /* write UTF-8 output; else ASCII */
+static	int		 exitcode; /* to be returned by main */
+static	enum op		 op; /* operational mode */
+static	char		 basedir[PATH_MAX]; /* current base directory */
+static	struct mpage	*mpage_head; /* list of distinct manual pages */
+static	struct ohash	 mpages; /* table of distinct manual pages */
+static	struct ohash	 mlinks; /* table of directory entries */
+static	struct ohash	 names; /* table of all names */
+static	struct ohash	 strings; /* table of all strings */
+static	uint64_t	 name_mask;
+
+static	const struct mdoc_handler __mdocs[MDOC_MAX - MDOC_Dd] = {
+	{ NULL, 0, NODE_NOPRT },  /* Dd */
+	{ NULL, 0, NODE_NOPRT },  /* Dt */
+	{ NULL, 0, NODE_NOPRT },  /* Os */
+	{ parse_mdoc_Sh, TYPE_Sh, 0 }, /* Sh */
+	{ parse_mdoc_head, TYPE_Ss, 0 }, /* Ss */
+	{ NULL, 0, 0 },  /* Pp */
+	{ NULL, 0, 0 },  /* D1 */
+	{ NULL, 0, 0 },  /* Dl */
+	{ NULL, 0, 0 },  /* Bd */
+	{ NULL, 0, 0 },  /* Ed */
+	{ NULL, 0, 0 },  /* Bl */
+	{ NULL, 0, 0 },  /* El */
+	{ NULL, 0, 0 },  /* It */
+	{ NULL, 0, 0 },  /* Ad */
+	{ NULL, TYPE_An, 0 },  /* An */
+	{ NULL, 0, 0 },  /* Ap */
+	{ NULL, TYPE_Ar, 0 },  /* Ar */
+	{ NULL, TYPE_Cd, 0 },  /* Cd */
+	{ NULL, TYPE_Cm, 0 },  /* Cm */
+	{ NULL, TYPE_Dv, 0 },  /* Dv */
+	{ NULL, TYPE_Er, 0 },  /* Er */
+	{ NULL, TYPE_Ev, 0 },  /* Ev */
+	{ NULL, 0, 0 },  /* Ex */
+	{ NULL, TYPE_Fa, 0 },  /* Fa */
+	{ parse_mdoc_Fd, 0, 0 },  /* Fd */
+	{ NULL, TYPE_Fl, 0 },  /* Fl */
+	{ parse_mdoc_Fn, 0, 0 },  /* Fn */
+	{ NULL, TYPE_Ft, 0 },  /* Ft */
+	{ NULL, TYPE_Ic, 0 },  /* Ic */
+	{ NULL, TYPE_In, 0 },  /* In */
+	{ NULL, TYPE_Li, 0 },  /* Li */
+	{ parse_mdoc_Nd, 0, 0 },  /* Nd */
+	{ parse_mdoc_Nm, 0, 0 },  /* Nm */
+	{ NULL, 0, 0 },  /* Op */
+	{ NULL, 0, 0 },  /* Ot */
+	{ NULL, TYPE_Pa, NODE_NOSRC },  /* Pa */
+	{ NULL, 0, 0 },  /* Rv */
+	{ NULL, TYPE_St, 0 },  /* St */
+	{ parse_mdoc_Va, TYPE_Va, 0 },  /* Va */
+	{ parse_mdoc_Va, TYPE_Vt, 0 },  /* Vt */
+	{ parse_mdoc_Xr, 0, 0 },  /* Xr */
+	{ NULL, 0, 0 },  /* %A */
+	{ NULL, 0, 0 },  /* %B */
+	{ NULL, 0, 0 },  /* %D */
+	{ NULL, 0, 0 },  /* %I */
+	{ NULL, 0, 0 },  /* %J */
+	{ NULL, 0, 0 },  /* %N */
+	{ NULL, 0, 0 },  /* %O */
+	{ NULL, 0, 0 },  /* %P */
+	{ NULL, 0, 0 },  /* %R */
+	{ NULL, 0, 0 },  /* %T */
+	{ NULL, 0, 0 },  /* %V */
+	{ NULL, 0, 0 },  /* Ac */
+	{ NULL, 0, 0 },  /* Ao */
+	{ NULL, 0, 0 },  /* Aq */
+	{ NULL, TYPE_At, 0 },  /* At */
+	{ NULL, 0, 0 },  /* Bc */
+	{ NULL, 0, 0 },  /* Bf */
+	{ NULL, 0, 0 },  /* Bo */
+	{ NULL, 0, 0 },  /* Bq */
+	{ NULL, TYPE_Bsx, NODE_NOSRC },  /* Bsx */
+	{ NULL, TYPE_Bx, NODE_NOSRC },  /* Bx */
+	{ NULL, 0, 0 },  /* Db */
+	{ NULL, 0, 0 },  /* Dc */
+	{ NULL, 0, 0 },  /* Do */
+	{ NULL, 0, 0 },  /* Dq */
+	{ NULL, 0, 0 },  /* Ec */
+	{ NULL, 0, 0 },  /* Ef */
+	{ NULL, TYPE_Em, 0 },  /* Em */
+	{ NULL, 0, 0 },  /* Eo */
+	{ NULL, TYPE_Fx, NODE_NOSRC },  /* Fx */
+	{ NULL, TYPE_Ms, 0 },  /* Ms */
+	{ NULL, 0, 0 },  /* No */
+	{ NULL, 0, 0 },  /* Ns */
+	{ NULL, TYPE_Nx, NODE_NOSRC },  /* Nx */
+	{ NULL, TYPE_Ox, NODE_NOSRC },  /* Ox */
+	{ NULL, 0, 0 },  /* Pc */
+	{ NULL, 0, 0 },  /* Pf */
+	{ NULL, 0, 0 },  /* Po */
+	{ NULL, 0, 0 },  /* Pq */
+	{ NULL, 0, 0 },  /* Qc */
+	{ NULL, 0, 0 },  /* Ql */
+	{ NULL, 0, 0 },  /* Qo */
+	{ NULL, 0, 0 },  /* Qq */
+	{ NULL, 0, 0 },  /* Re */
+	{ NULL, 0, 0 },  /* Rs */
+	{ NULL, 0, 0 },  /* Sc */
+	{ NULL, 0, 0 },  /* So */
+	{ NULL, 0, 0 },  /* Sq */
+	{ NULL, 0, 0 },  /* Sm */
+	{ NULL, 0, 0 },  /* Sx */
+	{ NULL, TYPE_Sy, 0 },  /* Sy */
+	{ NULL, TYPE_Tn, 0 },  /* Tn */
+	{ NULL, 0, NODE_NOSRC },  /* Ux */
+	{ NULL, 0, 0 },  /* Xc */
+	{ NULL, 0, 0 },  /* Xo */
+	{ parse_mdoc_Fo, 0, 0 },  /* Fo */
+	{ NULL, 0, 0 },  /* Fc */
+	{ NULL, 0, 0 },  /* Oo */
+	{ NULL, 0, 0 },  /* Oc */
+	{ NULL, 0, 0 },  /* Bk */
+	{ NULL, 0, 0 },  /* Ek */
+	{ NULL, 0, 0 },  /* Bt */
+	{ NULL, 0, 0 },  /* Hf */
+	{ NULL, 0, 0 },  /* Fr */
+	{ NULL, 0, 0 },  /* Ud */
+	{ NULL, TYPE_Lb, NODE_NOSRC },  /* Lb */
+	{ NULL, 0, 0 },  /* Lp */
+	{ NULL, TYPE_Lk, 0 },  /* Lk */
+	{ NULL, TYPE_Mt, NODE_NOSRC },  /* Mt */
+	{ NULL, 0, 0 },  /* Brq */
+	{ NULL, 0, 0 },  /* Bro */
+	{ NULL, 0, 0 },  /* Brc */
+	{ NULL, 0, 0 },  /* %C */
+	{ NULL, 0, 0 },  /* Es */
+	{ NULL, 0, 0 },  /* En */
+	{ NULL, TYPE_Dx, NODE_NOSRC },  /* Dx */
+	{ NULL, 0, 0 },  /* %Q */
+	{ NULL, 0, 0 },  /* %U */
+	{ NULL, 0, 0 },  /* Ta */
+};
+static	const struct mdoc_handler *const mdocs = __mdocs - MDOC_Dd;
+
+
+int
+mandocdb(int argc, char *argv[])
+{
+	struct manconf	  conf;
+	struct mparse	 *mp;
+	struct dba	 *dba;
+	const char	 *path_arg, *progname;
+	size_t		  j, sz;
+	int		  ch, i;
+
+#if HAVE_PLEDGE
+	if (pledge("stdio rpath wpath cpath fattr flock proc exec", NULL) == -1) {
+		warn("pledge");
+		return (int)MANDOCLEVEL_SYSERR;
+	}
+#endif
+
+#if HAVE_SANDBOX_INIT
+	if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1) {
+		warnx("sandbox_init");
+		return (int)MANDOCLEVEL_SYSERR;
+	}
+#endif
+
+	memset(&conf, 0, sizeof(conf));
+
+	/*
+	 * We accept a few different invocations.
+	 * The CHECKOP macro makes sure that invocation styles don't
+	 * clobber each other.
+	 */
+#define	CHECKOP(_op, _ch) do \
+	if (OP_DEFAULT != (_op)) { \
+		warnx("-%c: Conflicting option", (_ch)); \
+		goto usage; \
+	} while (/*CONSTCOND*/0)
+
+	path_arg = NULL;
+	op = OP_DEFAULT;
+
+	while (-1 != (ch = getopt(argc, argv, "aC:Dd:npQT:tu:v")))
+		switch (ch) {
+		case 'a':
+			use_all = 1;
+			break;
+		case 'C':
+			CHECKOP(op, ch);
+			path_arg = optarg;
+			op = OP_CONFFILE;
+			break;
+		case 'D':
+			debug++;
+			break;
+		case 'd':
+			CHECKOP(op, ch);
+			path_arg = optarg;
+			op = OP_UPDATE;
+			break;
+		case 'n':
+			nodb = 1;
+			break;
+		case 'p':
+			warnings = 1;
+			break;
+		case 'Q':
+			mparse_options |= MPARSE_QUICK;
+			break;
+		case 'T':
+			if (strcmp(optarg, "utf8")) {
+				warnx("-T%s: Unsupported output format",
+				    optarg);
+				goto usage;
+			}
+			write_utf8 = 1;
+			break;
+		case 't':
+			CHECKOP(op, ch);
+			dup2(STDOUT_FILENO, STDERR_FILENO);
+			op = OP_TEST;
+			nodb = warnings = 1;
+			break;
+		case 'u':
+			CHECKOP(op, ch);
+			path_arg = optarg;
+			op = OP_DELETE;
+			break;
+		case 'v':
+			/* Compatibility with espie@'s makewhatis. */
+			break;
+		default:
+			goto usage;
+		}
+
+	argc -= optind;
+	argv += optind;
+
+#if HAVE_PLEDGE
+	if (nodb) {
+		if (pledge("stdio rpath", NULL) == -1) {
+			warn("pledge");
+			return (int)MANDOCLEVEL_SYSERR;
+		}
+	}
+#endif
+
+	if (OP_CONFFILE == op && argc > 0) {
+		warnx("-C: Too many arguments");
+		goto usage;
+	}
+
+	exitcode = (int)MANDOCLEVEL_OK;
+	mchars_alloc();
+	mp = mparse_alloc(mparse_options, MANDOCERR_MAX, NULL,
+	    MANDOC_OS_OTHER, NULL);
+	mandoc_ohash_init(&mpages, 6, offsetof(struct mpage, inodev));
+	mandoc_ohash_init(&mlinks, 6, offsetof(struct mlink, file));
+
+	if (OP_UPDATE == op || OP_DELETE == op || OP_TEST == op) {
+
+		/*
+		 * Most of these deal with a specific directory.
+		 * Jump into that directory first.
+		 */
+		if (OP_TEST != op && 0 == set_basedir(path_arg, 1))
+			goto out;
+
+		dba = nodb ? dba_new(128) : dba_read(MANDOC_DB);
+		if (dba != NULL) {
+			/*
+			 * The existing database is usable.  Process
+			 * all files specified on the command-line.
+			 */
+#if HAVE_PLEDGE
+			if (!nodb) {
+				if (pledge("stdio rpath wpath cpath fattr flock", NULL) == -1) {
+					warn("pledge");
+					exitcode = (int)MANDOCLEVEL_SYSERR;
+					goto out;
+				}
+			}
+#endif
+			use_all = 1;
+			for (i = 0; i < argc; i++)
+				filescan(argv[i]);
+			if (nodb == 0)
+				dbprune(dba);
+		} else {
+			/* Database missing or corrupt. */
+			if (op != OP_UPDATE || errno != ENOENT)
+				say(MANDOC_DB, "%s: Automatically recreating"
+				    " from scratch", strerror(errno));
+			exitcode = (int)MANDOCLEVEL_OK;
+			op = OP_DEFAULT;
+			if (0 == treescan())
+				goto out;
+			dba = dba_new(128);
+		}
+		if (OP_DELETE != op)
+			mpages_merge(dba, mp);
+		if (nodb == 0)
+			dbwrite(dba);
+		dba_free(dba);
+	} else {
+		/*
+		 * If we have arguments, use them as our manpaths.
+		 * If we don't, use man.conf(5).
+		 */
+		if (argc > 0) {
+			conf.manpath.paths = mandoc_reallocarray(NULL,
+			    argc, sizeof(char *));
+			conf.manpath.sz = (size_t)argc;
+			for (i = 0; i < argc; i++)
+				conf.manpath.paths[i] = mandoc_strdup(argv[i]);
+		} else
+			manconf_parse(&conf, path_arg, NULL, NULL);
+
+		if (conf.manpath.sz == 0) {
+			exitcode = (int)MANDOCLEVEL_BADARG;
+			say("", "Empty manpath");
+		}
+
+		/*
+		 * First scan the tree rooted at a base directory, then
+		 * build a new database and finally move it into place.
+		 * Ignore zero-length directories and strip trailing
+		 * slashes.
+		 */
+		for (j = 0; j < conf.manpath.sz; j++) {
+			sz = strlen(conf.manpath.paths[j]);
+			if (sz && conf.manpath.paths[j][sz - 1] == '/')
+				conf.manpath.paths[j][--sz] = '\0';
+			if (0 == sz)
+				continue;
+
+			if (j) {
+				mandoc_ohash_init(&mpages, 6,
+				    offsetof(struct mpage, inodev));
+				mandoc_ohash_init(&mlinks, 6,
+				    offsetof(struct mlink, file));
+			}
+
+			if ( ! set_basedir(conf.manpath.paths[j], argc > 0))
+				continue;
+			if (0 == treescan())
+				continue;
+			dba = dba_new(128);
+			mpages_merge(dba, mp);
+			if (nodb == 0)
+				dbwrite(dba);
+			dba_free(dba);
+
+			if (j + 1 < conf.manpath.sz) {
+				mpages_free();
+				ohash_delete(&mpages);
+				ohash_delete(&mlinks);
+			}
+		}
+	}
+out:
+	manconf_free(&conf);
+	mparse_free(mp);
+	mchars_free();
+	mpages_free();
+	ohash_delete(&mpages);
+	ohash_delete(&mlinks);
+	return exitcode;
+usage:
+	progname = getprogname();
+	fprintf(stderr, "usage: %s [-aDnpQ] [-C file] [-Tutf8]\n"
+			"       %s [-aDnpQ] [-Tutf8] dir ...\n"
+			"       %s [-DnpQ] [-Tutf8] -d dir [file ...]\n"
+			"       %s [-Dnp] -u dir [file ...]\n"
+			"       %s [-Q] -t file ...\n",
+		        progname, progname, progname, progname, progname);
+
+	return (int)MANDOCLEVEL_BADARG;
+}
+
+/*
+ * To get a singly linked list in alpha order while inserting entries
+ * at the beginning, process directory entries in reverse alpha order.
+ */
+static int
+#if HAVE_FTS_COMPARE_CONST
+fts_compare(const FTSENT *const *a, const FTSENT *const *b)
+#else
+fts_compare(const FTSENT **a, const FTSENT **b)
+#endif
+{
+	return -strcmp((*a)->fts_name, (*b)->fts_name);
+}
+
+/*
+ * Scan a directory tree rooted at "basedir" for manpages.
+ * We use fts(), scanning directory parts along the way for clues to our
+ * section and architecture.
+ *
+ * If use_all has been specified, grok all files.
+ * If not, sanitise paths to the following:
+ *
+ *   [./]man*[/<arch>]/<name>.<section>
+ *   or
+ *   [./]cat<section>[/<arch>]/<name>.0
+ *
+ * TODO: accommodate for multi-language directories.
+ */
+static int
+treescan(void)
+{
+	char		 buf[PATH_MAX];
+	FTS		*f;
+	FTSENT		*ff;
+	struct mlink	*mlink;
+	int		 gzip;
+	enum form	 dform;
+	char		*dsec, *arch, *fsec, *cp;
+	const char	*path;
+	const char	*argv[2];
+
+	argv[0] = ".";
+	argv[1] = NULL;
+
+	f = fts_open((char * const *)argv, FTS_PHYSICAL | FTS_NOCHDIR,
+	    fts_compare);
+	if (f == NULL) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "&fts_open");
+		return 0;
+	}
+
+	dsec = arch = NULL;
+	dform = FORM_NONE;
+
+	while ((ff = fts_read(f)) != NULL) {
+		path = ff->fts_path + 2;
+		switch (ff->fts_info) {
+
+		/*
+		 * Symbolic links require various sanity checks,
+		 * then get handled just like regular files.
+		 */
+		case FTS_SL:
+			if (realpath(path, buf) == NULL) {
+				if (warnings)
+					say(path, "&realpath");
+				continue;
+			}
+			if (strstr(buf, basedir) != buf
+#ifdef HOMEBREWDIR
+			    && strstr(buf, HOMEBREWDIR) != buf
+#endif
+			) {
+				if (warnings) say("",
+				    "%s: outside base directory", buf);
+				continue;
+			}
+			/* Use logical inode to avoid mpages dupe. */
+			if (stat(path, ff->fts_statp) == -1) {
+				if (warnings)
+					say(path, "&stat");
+				continue;
+			}
+			/* FALLTHROUGH */
+
+		/*
+		 * If we're a regular file, add an mlink by using the
+		 * stored directory data and handling the filename.
+		 */
+		case FTS_F:
+			if ( ! strcmp(path, MANDOC_DB))
+				continue;
+			if ( ! use_all && ff->fts_level < 2) {
+				if (warnings)
+					say(path, "Extraneous file");
+				continue;
+			}
+			gzip = 0;
+			fsec = NULL;
+			while (fsec == NULL) {
+				fsec = strrchr(ff->fts_name, '.');
+				if (fsec == NULL || strcmp(fsec+1, "gz"))
+					break;
+				gzip = 1;
+				*fsec = '\0';
+				fsec = NULL;
+			}
+			if (fsec == NULL) {
+				if ( ! use_all) {
+					if (warnings)
+						say(path,
+						    "No filename suffix");
+					continue;
+				}
+			} else if ( ! strcmp(++fsec, "html")) {
+				if (warnings)
+					say(path, "Skip html");
+				continue;
+			} else if ( ! strcmp(fsec, "ps")) {
+				if (warnings)
+					say(path, "Skip ps");
+				continue;
+			} else if ( ! strcmp(fsec, "pdf")) {
+				if (warnings)
+					say(path, "Skip pdf");
+				continue;
+			} else if ( ! use_all &&
+			    ((dform == FORM_SRC &&
+			      strncmp(fsec, dsec, strlen(dsec))) ||
+			     (dform == FORM_CAT && strcmp(fsec, "0")))) {
+				if (warnings)
+					say(path, "Wrong filename suffix");
+				continue;
+			} else
+				fsec[-1] = '\0';
+
+			mlink = mandoc_calloc(1, sizeof(struct mlink));
+			if (strlcpy(mlink->file, path,
+			    sizeof(mlink->file)) >=
+			    sizeof(mlink->file)) {
+				say(path, "Filename too long");
+				free(mlink);
+				continue;
+			}
+			mlink->dform = dform;
+			mlink->dsec = dsec;
+			mlink->arch = arch;
+			mlink->name = ff->fts_name;
+			mlink->fsec = fsec;
+			mlink->gzip = gzip;
+			mlink_add(mlink, ff->fts_statp);
+			continue;
+
+		case FTS_D:
+		case FTS_DP:
+			break;
+
+		default:
+			if (warnings)
+				say(path, "Not a regular file");
+			continue;
+		}
+
+		switch (ff->fts_level) {
+		case 0:
+			/* Ignore the root directory. */
+			break;
+		case 1:
+			/*
+			 * This might contain manX/ or catX/.
+			 * Try to infer this from the name.
+			 * If we're not in use_all, enforce it.
+			 */
+			cp = ff->fts_name;
+			if (ff->fts_info == FTS_DP) {
+				dform = FORM_NONE;
+				dsec = NULL;
+				break;
+			}
+
+			if ( ! strncmp(cp, "man", 3)) {
+				dform = FORM_SRC;
+				dsec = cp + 3;
+			} else if ( ! strncmp(cp, "cat", 3)) {
+				dform = FORM_CAT;
+				dsec = cp + 3;
+			} else {
+				dform = FORM_NONE;
+				dsec = NULL;
+			}
+
+			if (dsec != NULL || use_all)
+				break;
+
+			if (warnings)
+				say(path, "Unknown directory part");
+			fts_set(f, ff, FTS_SKIP);
+			break;
+		case 2:
+			/*
+			 * Possibly our architecture.
+			 * If we're descending, keep tabs on it.
+			 */
+			if (ff->fts_info != FTS_DP && dsec != NULL)
+				arch = ff->fts_name;
+			else
+				arch = NULL;
+			break;
+		default:
+			if (ff->fts_info == FTS_DP || use_all)
+				break;
+			if (warnings)
+				say(path, "Extraneous directory part");
+			fts_set(f, ff, FTS_SKIP);
+			break;
+		}
+	}
+
+	fts_close(f);
+	return 1;
+}
+
+/*
+ * Add a file to the mlinks table.
+ * Do not verify that it's a "valid" looking manpage (we'll do that
+ * later).
+ *
+ * Try to infer the manual section, architecture, and page name from the
+ * path, assuming it looks like
+ *
+ *   [./]man*[/<arch>]/<name>.<section>
+ *   or
+ *   [./]cat<section>[/<arch>]/<name>.0
+ *
+ * See treescan() for the fts(3) version of this.
+ */
+static void
+filescan(const char *file)
+{
+	char		 buf[PATH_MAX];
+	struct stat	 st;
+	struct mlink	*mlink;
+	char		*p, *start;
+
+	assert(use_all);
+
+	if (0 == strncmp(file, "./", 2))
+		file += 2;
+
+	/*
+	 * We have to do lstat(2) before realpath(3) loses
+	 * the information whether this is a symbolic link.
+	 * We need to know that because for symbolic links,
+	 * we want to use the orginal file name, while for
+	 * regular files, we want to use the real path.
+	 */
+	if (-1 == lstat(file, &st)) {
+		exitcode = (int)MANDOCLEVEL_BADARG;
+		say(file, "&lstat");
+		return;
+	} else if (0 == ((S_IFREG | S_IFLNK) & st.st_mode)) {
+		exitcode = (int)MANDOCLEVEL_BADARG;
+		say(file, "Not a regular file");
+		return;
+	}
+
+	/*
+	 * We have to resolve the file name to the real path
+	 * in any case for the base directory check.
+	 */
+	if (NULL == realpath(file, buf)) {
+		exitcode = (int)MANDOCLEVEL_BADARG;
+		say(file, "&realpath");
+		return;
+	}
+
+	if (OP_TEST == op)
+		start = buf;
+	else if (strstr(buf, basedir) == buf)
+		start = buf + strlen(basedir);
+#ifdef HOMEBREWDIR
+	else if (strstr(buf, HOMEBREWDIR) == buf)
+		start = buf;
+#endif
+	else {
+		exitcode = (int)MANDOCLEVEL_BADARG;
+		say("", "%s: outside base directory", buf);
+		return;
+	}
+
+	/*
+	 * Now we are sure the file is inside our tree.
+	 * If it is a symbolic link, ignore the real path
+	 * and use the original name.
+	 * This implies passing stuff like "cat1/../man1/foo.1"
+	 * on the command line won't work.  So don't do that.
+	 * Note the stat(2) can still fail if the link target
+	 * doesn't exist.
+	 */
+	if (S_IFLNK & st.st_mode) {
+		if (-1 == stat(buf, &st)) {
+			exitcode = (int)MANDOCLEVEL_BADARG;
+			say(file, "&stat");
+			return;
+		}
+		if (strlcpy(buf, file, sizeof(buf)) >= sizeof(buf)) {
+			say(file, "Filename too long");
+			return;
+		}
+		start = buf;
+		if (OP_TEST != op && strstr(buf, basedir) == buf)
+			start += strlen(basedir);
+	}
+
+	mlink = mandoc_calloc(1, sizeof(struct mlink));
+	mlink->dform = FORM_NONE;
+	if (strlcpy(mlink->file, start, sizeof(mlink->file)) >=
+	    sizeof(mlink->file)) {
+		say(start, "Filename too long");
+		free(mlink);
+		return;
+	}
+
+	/*
+	 * In test mode or when the original name is absolute
+	 * but outside our tree, guess the base directory.
+	 */
+
+	if (op == OP_TEST || (start == buf && *start == '/')) {
+		if (strncmp(buf, "man/", 4) == 0)
+			start = buf + 4;
+		else if ((start = strstr(buf, "/man/")) != NULL)
+			start += 5;
+		else
+			start = buf;
+	}
+
+	/*
+	 * First try to guess our directory structure.
+	 * If we find a separator, try to look for man* or cat*.
+	 * If we find one of these and what's underneath is a directory,
+	 * assume it's an architecture.
+	 */
+	if (NULL != (p = strchr(start, '/'))) {
+		*p++ = '\0';
+		if (0 == strncmp(start, "man", 3)) {
+			mlink->dform = FORM_SRC;
+			mlink->dsec = start + 3;
+		} else if (0 == strncmp(start, "cat", 3)) {
+			mlink->dform = FORM_CAT;
+			mlink->dsec = start + 3;
+		}
+
+		start = p;
+		if (NULL != mlink->dsec && NULL != (p = strchr(start, '/'))) {
+			*p++ = '\0';
+			mlink->arch = start;
+			start = p;
+		}
+	}
+
+	/*
+	 * Now check the file suffix.
+	 * Suffix of `.0' indicates a catpage, `.1-9' is a manpage.
+	 */
+	p = strrchr(start, '\0');
+	while (p-- > start && '/' != *p && '.' != *p)
+		/* Loop. */ ;
+
+	if ('.' == *p) {
+		*p++ = '\0';
+		mlink->fsec = p;
+	}
+
+	/*
+	 * Now try to parse the name.
+	 * Use the filename portion of the path.
+	 */
+	mlink->name = start;
+	if (NULL != (p = strrchr(start, '/'))) {
+		mlink->name = p + 1;
+		*p = '\0';
+	}
+	mlink_add(mlink, &st);
+}
+
+static void
+mlink_add(struct mlink *mlink, const struct stat *st)
+{
+	struct inodev	 inodev;
+	struct mpage	*mpage;
+	unsigned int	 slot;
+
+	assert(NULL != mlink->file);
+
+	mlink->dsec = mandoc_strdup(mlink->dsec ? mlink->dsec : "");
+	mlink->arch = mandoc_strdup(mlink->arch ? mlink->arch : "");
+	mlink->name = mandoc_strdup(mlink->name ? mlink->name : "");
+	mlink->fsec = mandoc_strdup(mlink->fsec ? mlink->fsec : "");
+
+	if ('0' == *mlink->fsec) {
+		free(mlink->fsec);
+		mlink->fsec = mandoc_strdup(mlink->dsec);
+		mlink->fform = FORM_CAT;
+	} else if ('1' <= *mlink->fsec && '9' >= *mlink->fsec)
+		mlink->fform = FORM_SRC;
+	else
+		mlink->fform = FORM_NONE;
+
+	slot = ohash_qlookup(&mlinks, mlink->file);
+	assert(NULL == ohash_find(&mlinks, slot));
+	ohash_insert(&mlinks, slot, mlink);
+
+	memset(&inodev, 0, sizeof(inodev));  /* Clear padding. */
+	inodev.st_ino = st->st_ino;
+	inodev.st_dev = st->st_dev;
+	slot = ohash_lookup_memory(&mpages, (char *)&inodev,
+	    sizeof(struct inodev), inodev.st_ino);
+	mpage = ohash_find(&mpages, slot);
+	if (NULL == mpage) {
+		mpage = mandoc_calloc(1, sizeof(struct mpage));
+		mpage->inodev.st_ino = inodev.st_ino;
+		mpage->inodev.st_dev = inodev.st_dev;
+		mpage->form = FORM_NONE;
+		mpage->next = mpage_head;
+		mpage_head = mpage;
+		ohash_insert(&mpages, slot, mpage);
+	} else
+		mlink->next = mpage->mlinks;
+	mpage->mlinks = mlink;
+	mlink->mpage = mpage;
+}
+
+static void
+mlink_free(struct mlink *mlink)
+{
+
+	free(mlink->dsec);
+	free(mlink->arch);
+	free(mlink->name);
+	free(mlink->fsec);
+	free(mlink);
+}
+
+static void
+mpages_free(void)
+{
+	struct mpage	*mpage;
+	struct mlink	*mlink;
+
+	while ((mpage = mpage_head) != NULL) {
+		while ((mlink = mpage->mlinks) != NULL) {
+			mpage->mlinks = mlink->next;
+			mlink_free(mlink);
+		}
+		mpage_head = mpage->next;
+		free(mpage->sec);
+		free(mpage->arch);
+		free(mpage->title);
+		free(mpage->desc);
+		free(mpage);
+	}
+}
+
+/*
+ * For each mlink to the mpage, check whether the path looks like
+ * it is formatted, and if it does, check whether a source manual
+ * exists by the same name, ignoring the suffix.
+ * If both conditions hold, drop the mlink.
+ */
+static void
+mlinks_undupe(struct mpage *mpage)
+{
+	char		  buf[PATH_MAX];
+	struct mlink	**prev;
+	struct mlink	 *mlink;
+	char		 *bufp;
+
+	mpage->form = FORM_CAT;
+	prev = &mpage->mlinks;
+	while (NULL != (mlink = *prev)) {
+		if (FORM_CAT != mlink->dform) {
+			mpage->form = FORM_NONE;
+			goto nextlink;
+		}
+		(void)strlcpy(buf, mlink->file, sizeof(buf));
+		bufp = strstr(buf, "cat");
+		assert(NULL != bufp);
+		memcpy(bufp, "man", 3);
+		if (NULL != (bufp = strrchr(buf, '.')))
+			*++bufp = '\0';
+		(void)strlcat(buf, mlink->dsec, sizeof(buf));
+		if (NULL == ohash_find(&mlinks,
+		    ohash_qlookup(&mlinks, buf)))
+			goto nextlink;
+		if (warnings)
+			say(mlink->file, "Man source exists: %s", buf);
+		if (use_all)
+			goto nextlink;
+		*prev = mlink->next;
+		mlink_free(mlink);
+		continue;
+nextlink:
+		prev = &(*prev)->next;
+	}
+}
+
+static void
+mlink_check(struct mpage *mpage, struct mlink *mlink)
+{
+	struct str	*str;
+	unsigned int	 slot;
+
+	/*
+	 * Check whether the manual section given in a file
+	 * agrees with the directory where the file is located.
+	 * Some manuals have suffixes like (3p) on their
+	 * section number either inside the file or in the
+	 * directory name, some are linked into more than one
+	 * section, like encrypt(1) = makekey(8).
+	 */
+
+	if (FORM_SRC == mpage->form &&
+	    strcasecmp(mpage->sec, mlink->dsec))
+		say(mlink->file, "Section \"%s\" manual in %s directory",
+		    mpage->sec, mlink->dsec);
+
+	/*
+	 * Manual page directories exist for each kernel
+	 * architecture as returned by machine(1).
+	 * However, many manuals only depend on the
+	 * application architecture as returned by arch(1).
+	 * For example, some (2/ARM) manuals are shared
+	 * across the "armish" and "zaurus" kernel
+	 * architectures.
+	 * A few manuals are even shared across completely
+	 * different architectures, for example fdformat(1)
+	 * on amd64, i386, and sparc64.
+	 */
+
+	if (strcasecmp(mpage->arch, mlink->arch))
+		say(mlink->file, "Architecture \"%s\" manual in "
+		    "\"%s\" directory", mpage->arch, mlink->arch);
+
+	/*
+	 * XXX
+	 * parse_cat() doesn't set NAME_TITLE yet.
+	 */
+
+	if (FORM_CAT == mpage->form)
+		return;
+
+	/*
+	 * Check whether this mlink
+	 * appears as a name in the NAME section.
+	 */
+
+	slot = ohash_qlookup(&names, mlink->name);
+	str = ohash_find(&names, slot);
+	assert(NULL != str);
+	if ( ! (NAME_TITLE & str->mask))
+		say(mlink->file, "Name missing in NAME section");
+}
+
+/*
+ * Run through the files in the global vector "mpages"
+ * and add them to the database specified in "basedir".
+ *
+ * This handles the parsing scheme itself, using the cues of directory
+ * and filename to determine whether the file is parsable or not.
+ */
+static void
+mpages_merge(struct dba *dba, struct mparse *mp)
+{
+	struct mpage		*mpage, *mpage_dest;
+	struct mlink		*mlink, *mlink_dest;
+	struct roff_man		*man;
+	char			*sodest;
+	char			*cp;
+	int			 fd;
+
+	for (mpage = mpage_head; mpage != NULL; mpage = mpage->next) {
+		mlinks_undupe(mpage);
+		if ((mlink = mpage->mlinks) == NULL)
+			continue;
+
+		name_mask = NAME_MASK;
+		mandoc_ohash_init(&names, 4, offsetof(struct str, key));
+		mandoc_ohash_init(&strings, 6, offsetof(struct str, key));
+		mparse_reset(mp);
+		man = NULL;
+		sodest = NULL;
+
+		if ((fd = mparse_open(mp, mlink->file)) == -1) {
+			say(mlink->file, "&open");
+			goto nextpage;
+		}
+
+		/*
+		 * Interpret the file as mdoc(7) or man(7) source
+		 * code, unless it is known to be formatted.
+		 */
+		if (mlink->dform != FORM_CAT || mlink->fform != FORM_CAT) {
+			mparse_readfd(mp, fd, mlink->file);
+			close(fd);
+			fd = -1;
+			mparse_result(mp, &man, &sodest);
+		}
+
+		if (sodest != NULL) {
+			mlink_dest = ohash_find(&mlinks,
+			    ohash_qlookup(&mlinks, sodest));
+			if (mlink_dest == NULL) {
+				mandoc_asprintf(&cp, "%s.gz", sodest);
+				mlink_dest = ohash_find(&mlinks,
+				    ohash_qlookup(&mlinks, cp));
+				free(cp);
+			}
+			if (mlink_dest != NULL) {
+
+				/* The .so target exists. */
+
+				mpage_dest = mlink_dest->mpage;
+				while (1) {
+					mlink->mpage = mpage_dest;
+
+					/*
+					 * If the target was already
+					 * processed, add the links
+					 * to the database now.
+					 * Otherwise, this will
+					 * happen when we come
+					 * to the target.
+					 */
+
+					if (mpage_dest->dba != NULL)
+						dbadd_mlink(mlink);
+
+					if (mlink->next == NULL)
+						break;
+					mlink = mlink->next;
+				}
+
+				/* Move all links to the target. */
+
+				mlink->next = mlink_dest->next;
+				mlink_dest->next = mpage->mlinks;
+				mpage->mlinks = NULL;
+			}
+			goto nextpage;
+		} else if (man != NULL && man->macroset == MACROSET_MDOC) {
+			mdoc_validate(man);
+			mpage->form = FORM_SRC;
+			mpage->sec = man->meta.msec;
+			mpage->sec = mandoc_strdup(
+			    mpage->sec == NULL ? "" : mpage->sec);
+			mpage->arch = man->meta.arch;
+			mpage->arch = mandoc_strdup(
+			    mpage->arch == NULL ? "" : mpage->arch);
+			mpage->title = mandoc_strdup(man->meta.title);
+		} else if (man != NULL && man->macroset == MACROSET_MAN) {
+			man_validate(man);
+			if (*man->meta.msec != '\0' ||
+			    *man->meta.title != '\0') {
+				mpage->form = FORM_SRC;
+				mpage->sec = mandoc_strdup(man->meta.msec);
+				mpage->arch = mandoc_strdup(mlink->arch);
+				mpage->title = mandoc_strdup(man->meta.title);
+			} else
+				man = NULL;
+		}
+
+		assert(mpage->desc == NULL);
+		if (man == NULL) {
+			mpage->form = FORM_CAT;
+			mpage->sec = mandoc_strdup(mlink->dsec);
+			mpage->arch = mandoc_strdup(mlink->arch);
+			mpage->title = mandoc_strdup(mlink->name);
+			parse_cat(mpage, fd);
+		} else if (man->macroset == MACROSET_MDOC)
+			parse_mdoc(mpage, &man->meta, man->first);
+		else
+			parse_man(mpage, &man->meta, man->first);
+		if (mpage->desc == NULL) {
+			mpage->desc = mandoc_strdup(mlink->name);
+			if (warnings)
+				say(mlink->file, "No one-line description, "
+				    "using filename \"%s\"", mlink->name);
+		}
+
+		for (mlink = mpage->mlinks;
+		     mlink != NULL;
+		     mlink = mlink->next) {
+			putkey(mpage, mlink->name, NAME_FILE);
+			if (warnings && !use_all)
+				mlink_check(mpage, mlink);
+		}
+
+		dbadd(dba, mpage);
+
+nextpage:
+		ohash_delete(&strings);
+		ohash_delete(&names);
+	}
+}
+
+static void
+parse_cat(struct mpage *mpage, int fd)
+{
+	FILE		*stream;
+	struct mlink	*mlink;
+	char		*line, *p, *title, *sec;
+	size_t		 linesz, plen, titlesz;
+	ssize_t		 len;
+	int		 offs;
+
+	mlink = mpage->mlinks;
+	stream = fd == -1 ? fopen(mlink->file, "r") : fdopen(fd, "r");
+	if (stream == NULL) {
+		if (fd != -1)
+			close(fd);
+		if (warnings)
+			say(mlink->file, "&fopen");
+		return;
+	}
+
+	line = NULL;
+	linesz = 0;
+
+	/* Parse the section number from the header line. */
+
+	while (getline(&line, &linesz, stream) != -1) {
+		if (*line == '\n')
+			continue;
+		if ((sec = strchr(line, '(')) == NULL)
+			break;
+		if ((p = strchr(++sec, ')')) == NULL)
+			break;
+		free(mpage->sec);
+		mpage->sec = mandoc_strndup(sec, p - sec);
+		if (warnings && *mlink->dsec != '\0' &&
+		    strcasecmp(mpage->sec, mlink->dsec))
+			say(mlink->file,
+			    "Section \"%s\" manual in %s directory",
+			    mpage->sec, mlink->dsec);
+		break;
+	}
+
+	/* Skip to first blank line. */
+
+	while (line == NULL || *line != '\n')
+		if (getline(&line, &linesz, stream) == -1)
+			break;
+
+	/*
+	 * Assume the first line that is not indented
+	 * is the first section header.  Skip to it.
+	 */
+
+	while (getline(&line, &linesz, stream) != -1)
+		if (*line != '\n' && *line != ' ')
+			break;
+
+	/*
+	 * Read up until the next section into a buffer.
+	 * Strip the leading and trailing newline from each read line,
+	 * appending a trailing space.
+	 * Ignore empty (whitespace-only) lines.
+	 */
+
+	titlesz = 0;
+	title = NULL;
+
+	while ((len = getline(&line, &linesz, stream)) != -1) {
+		if (*line != ' ')
+			break;
+		offs = 0;
+		while (isspace((unsigned char)line[offs]))
+			offs++;
+		if (line[offs] == '\0')
+			continue;
+		title = mandoc_realloc(title, titlesz + len - offs);
+		memcpy(title + titlesz, line + offs, len - offs);
+		titlesz += len - offs;
+		title[titlesz - 1] = ' ';
+	}
+	free(line);
+
+	/*
+	 * If no page content can be found, or the input line
+	 * is already the next section header, or there is no
+	 * trailing newline, reuse the page title as the page
+	 * description.
+	 */
+
+	if (NULL == title || '\0' == *title) {
+		if (warnings)
+			say(mlink->file, "Cannot find NAME section");
+		fclose(stream);
+		free(title);
+		return;
+	}
+
+	title[titlesz - 1] = '\0';
+
+	/*
+	 * Skip to the first dash.
+	 * Use the remaining line as the description (no more than 70
+	 * bytes).
+	 */
+
+	if (NULL != (p = strstr(title, "- "))) {
+		for (p += 2; ' ' == *p || '\b' == *p; p++)
+			/* Skip to next word. */ ;
+	} else {
+		if (warnings)
+			say(mlink->file, "No dash in title line, "
+			    "reusing \"%s\" as one-line description", title);
+		p = title;
+	}
+
+	plen = strlen(p);
+
+	/* Strip backspace-encoding from line. */
+
+	while (NULL != (line = memchr(p, '\b', plen))) {
+		len = line - p;
+		if (0 == len) {
+			memmove(line, line + 1, plen--);
+			continue;
+		}
+		memmove(line - 1, line + 1, plen - len);
+		plen -= 2;
+	}
+
+	mpage->desc = mandoc_strdup(p);
+	fclose(stream);
+	free(title);
+}
+
+/*
+ * Put a type/word pair into the word database for this particular file.
+ */
+static void
+putkey(const struct mpage *mpage, char *value, uint64_t type)
+{
+	putkeys(mpage, value, strlen(value), type);
+}
+
+/*
+ * Grok all nodes at or below a certain mdoc node into putkey().
+ */
+static void
+putmdockey(const struct mpage *mpage,
+	const struct roff_node *n, uint64_t m, int taboo)
+{
+
+	for ( ; NULL != n; n = n->next) {
+		if (n->flags & taboo)
+			continue;
+		if (NULL != n->child)
+			putmdockey(mpage, n->child, m, taboo);
+		if (n->type == ROFFT_TEXT)
+			putkey(mpage, n->string, m);
+	}
+}
+
+static void
+parse_man(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+	const struct roff_node *head, *body;
+	char		*start, *title;
+	char		 byte;
+	size_t		 sz;
+
+	if (n == NULL)
+		return;
+
+	/*
+	 * We're only searching for one thing: the first text child in
+	 * the BODY of a NAME section.  Since we don't keep track of
+	 * sections in -man, run some hoops to find out whether we're in
+	 * the correct section or not.
+	 */
+
+	if (n->type == ROFFT_BODY && n->tok == MAN_SH) {
+		body = n;
+		if ((head = body->parent->head) != NULL &&
+		    (head = head->child) != NULL &&
+		    head->next == NULL &&
+		    head->type == ROFFT_TEXT &&
+		    strcmp(head->string, "NAME") == 0 &&
+		    body->child != NULL) {
+
+			/*
+			 * Suck the entire NAME section into memory.
+			 * Yes, we might run away.
+			 * But too many manuals have big, spread-out
+			 * NAME sections over many lines.
+			 */
+
+			title = NULL;
+			deroff(&title, body);
+			if (NULL == title)
+				return;
+
+			/*
+			 * Go through a special heuristic dance here.
+			 * Conventionally, one or more manual names are
+			 * comma-specified prior to a whitespace, then a
+			 * dash, then a description.  Try to puzzle out
+			 * the name parts here.
+			 */
+
+			start = title;
+			for ( ;; ) {
+				sz = strcspn(start, " ,");
+				if ('\0' == start[sz])
+					break;
+
+				byte = start[sz];
+				start[sz] = '\0';
+
+				/*
+				 * Assume a stray trailing comma in the
+				 * name list if a name begins with a dash.
+				 */
+
+				if ('-' == start[0] ||
+				    ('\\' == start[0] && '-' == start[1]))
+					break;
+
+				putkey(mpage, start, NAME_TITLE);
+				if ( ! (mpage->name_head_done ||
+				    strcasecmp(start, meta->title))) {
+					putkey(mpage, start, NAME_HEAD);
+					mpage->name_head_done = 1;
+				}
+
+				if (' ' == byte) {
+					start += sz + 1;
+					break;
+				}
+
+				assert(',' == byte);
+				start += sz + 1;
+				while (' ' == *start)
+					start++;
+			}
+
+			if (start == title) {
+				putkey(mpage, start, NAME_TITLE);
+				if ( ! (mpage->name_head_done ||
+				    strcasecmp(start, meta->title))) {
+					putkey(mpage, start, NAME_HEAD);
+					mpage->name_head_done = 1;
+				}
+				free(title);
+				return;
+			}
+
+			while (isspace((unsigned char)*start))
+				start++;
+
+			if (0 == strncmp(start, "-", 1))
+				start += 1;
+			else if (0 == strncmp(start, "\\-\\-", 4))
+				start += 4;
+			else if (0 == strncmp(start, "\\-", 2))
+				start += 2;
+			else if (0 == strncmp(start, "\\(en", 4))
+				start += 4;
+			else if (0 == strncmp(start, "\\(em", 4))
+				start += 4;
+
+			while (' ' == *start)
+				start++;
+
+			mpage->desc = mandoc_strdup(start);
+			free(title);
+			return;
+		}
+	}
+
+	for (n = n->child; n; n = n->next) {
+		if (NULL != mpage->desc)
+			break;
+		parse_man(mpage, meta, n);
+	}
+}
+
+static void
+parse_mdoc(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+
+	for (n = n->child; n != NULL; n = n->next) {
+		if (n->tok == TOKEN_NONE ||
+		    n->tok < ROFF_MAX ||
+		    n->flags & mdocs[n->tok].taboo)
+			continue;
+		assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+		switch (n->type) {
+		case ROFFT_ELEM:
+		case ROFFT_BLOCK:
+		case ROFFT_HEAD:
+		case ROFFT_BODY:
+		case ROFFT_TAIL:
+			if (mdocs[n->tok].fp != NULL &&
+			    (*mdocs[n->tok].fp)(mpage, meta, n) == 0)
+				break;
+			if (mdocs[n->tok].mask)
+				putmdockey(mpage, n->child,
+				    mdocs[n->tok].mask, mdocs[n->tok].taboo);
+			break;
+		default:
+			continue;
+		}
+		if (NULL != n->child)
+			parse_mdoc(mpage, meta, n);
+	}
+}
+
+static int
+parse_mdoc_Fd(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+	char		*start, *end;
+	size_t		 sz;
+
+	if (SEC_SYNOPSIS != n->sec ||
+	    NULL == (n = n->child) ||
+	    n->type != ROFFT_TEXT)
+		return 0;
+
+	/*
+	 * Only consider those `Fd' macro fields that begin with an
+	 * "inclusion" token (versus, e.g., #define).
+	 */
+
+	if (strcmp("#include", n->string))
+		return 0;
+
+	if ((n = n->next) == NULL || n->type != ROFFT_TEXT)
+		return 0;
+
+	/*
+	 * Strip away the enclosing angle brackets and make sure we're
+	 * not zero-length.
+	 */
+
+	start = n->string;
+	if ('<' == *start || '"' == *start)
+		start++;
+
+	if (0 == (sz = strlen(start)))
+		return 0;
+
+	end = &start[(int)sz - 1];
+	if ('>' == *end || '"' == *end)
+		end--;
+
+	if (end > start)
+		putkeys(mpage, start, end - start + 1, TYPE_In);
+	return 0;
+}
+
+static void
+parse_mdoc_fname(struct mpage *mpage, const struct roff_node *n)
+{
+	char	*cp;
+	size_t	 sz;
+
+	if (n->type != ROFFT_TEXT)
+		return;
+
+	/* Skip function pointer punctuation. */
+
+	cp = n->string;
+	while (*cp == '(' || *cp == '*')
+		cp++;
+	sz = strcspn(cp, "()");
+
+	putkeys(mpage, cp, sz, TYPE_Fn);
+	if (n->sec == SEC_SYNOPSIS)
+		putkeys(mpage, cp, sz, NAME_SYN);
+}
+
+static int
+parse_mdoc_Fn(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+
+	if (n->child == NULL)
+		return 0;
+
+	parse_mdoc_fname(mpage, n->child);
+
+	for (n = n->child->next; n != NULL; n = n->next)
+		if (n->type == ROFFT_TEXT)
+			putkey(mpage, n->string, TYPE_Fa);
+
+	return 0;
+}
+
+static int
+parse_mdoc_Fo(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+
+	if (n->type != ROFFT_HEAD)
+		return 1;
+
+	if (n->child != NULL)
+		parse_mdoc_fname(mpage, n->child);
+
+	return 0;
+}
+
+static int
+parse_mdoc_Va(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+	char *cp;
+
+	if (n->type != ROFFT_ELEM && n->type != ROFFT_BODY)
+		return 0;
+
+	if (n->child != NULL &&
+	    n->child->next == NULL &&
+	    n->child->type == ROFFT_TEXT)
+		return 1;
+
+	cp = NULL;
+	deroff(&cp, n);
+	if (cp != NULL) {
+		putkey(mpage, cp, TYPE_Vt | (n->tok == MDOC_Va ||
+		    n->type == ROFFT_BODY ? TYPE_Va : 0));
+		free(cp);
+	}
+
+	return 0;
+}
+
+static int
+parse_mdoc_Xr(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+	char	*cp;
+
+	if (NULL == (n = n->child))
+		return 0;
+
+	if (NULL == n->next) {
+		putkey(mpage, n->string, TYPE_Xr);
+		return 0;
+	}
+
+	mandoc_asprintf(&cp, "%s(%s)", n->string, n->next->string);
+	putkey(mpage, cp, TYPE_Xr);
+	free(cp);
+	return 0;
+}
+
+static int
+parse_mdoc_Nd(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+
+	if (n->type == ROFFT_BODY)
+		deroff(&mpage->desc, n);
+	return 0;
+}
+
+static int
+parse_mdoc_Nm(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+
+	if (SEC_NAME == n->sec)
+		putmdockey(mpage, n->child, NAME_TITLE, 0);
+	else if (n->sec == SEC_SYNOPSIS && n->type == ROFFT_HEAD) {
+		if (n->child == NULL)
+			putkey(mpage, meta->name, NAME_SYN);
+		else
+			putmdockey(mpage, n->child, NAME_SYN, 0);
+	}
+	if ( ! (mpage->name_head_done ||
+	    n->child == NULL || n->child->string == NULL ||
+	    strcasecmp(n->child->string, meta->title))) {
+		putkey(mpage, n->child->string, NAME_HEAD);
+		mpage->name_head_done = 1;
+	}
+	return 0;
+}
+
+static int
+parse_mdoc_Sh(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+
+	return n->sec == SEC_CUSTOM && n->type == ROFFT_HEAD;
+}
+
+static int
+parse_mdoc_head(struct mpage *mpage, const struct roff_meta *meta,
+	const struct roff_node *n)
+{
+
+	return n->type == ROFFT_HEAD;
+}
+
+/*
+ * Add a string to the hash table for the current manual.
+ * Each string has a bitmask telling which macros it belongs to.
+ * When we finish the manual, we'll dump the table.
+ */
+static void
+putkeys(const struct mpage *mpage, char *cp, size_t sz, uint64_t v)
+{
+	struct ohash	*htab;
+	struct str	*s;
+	const char	*end;
+	unsigned int	 slot;
+	int		 i, mustfree;
+
+	if (0 == sz)
+		return;
+
+	mustfree = render_string(&cp, &sz);
+
+	if (TYPE_Nm & v) {
+		htab = &names;
+		v &= name_mask;
+		if (v & NAME_FIRST)
+			name_mask &= ~NAME_FIRST;
+		if (debug > 1)
+			say(mpage->mlinks->file,
+			    "Adding name %*s, bits=0x%llx", (int)sz, cp,
+			    (unsigned long long)v);
+	} else {
+		htab = &strings;
+		if (debug > 1)
+		    for (i = 0; i < KEY_MAX; i++)
+			if ((uint64_t)1 << i & v)
+			    say(mpage->mlinks->file,
+				"Adding key %s=%*s",
+				mansearch_keynames[i], (int)sz, cp);
+	}
+
+	end = cp + sz;
+	slot = ohash_qlookupi(htab, cp, &end);
+	s = ohash_find(htab, slot);
+
+	if (NULL != s && mpage == s->mpage) {
+		s->mask |= v;
+		return;
+	} else if (NULL == s) {
+		s = mandoc_calloc(1, sizeof(struct str) + sz + 1);
+		memcpy(s->key, cp, sz);
+		ohash_insert(htab, slot, s);
+	}
+	s->mpage = mpage;
+	s->mask = v;
+
+	if (mustfree)
+		free(cp);
+}
+
+/*
+ * Take a Unicode codepoint and produce its UTF-8 encoding.
+ * This isn't the best way to do this, but it works.
+ * The magic numbers are from the UTF-8 packaging.
+ * They're not as scary as they seem: read the UTF-8 spec for details.
+ */
+static size_t
+utf8(unsigned int cp, char out[7])
+{
+	size_t		 rc;
+
+	rc = 0;
+	if (cp <= 0x0000007F) {
+		rc = 1;
+		out[0] = (char)cp;
+	} else if (cp <= 0x000007FF) {
+		rc = 2;
+		out[0] = (cp >> 6  & 31) | 192;
+		out[1] = (cp       & 63) | 128;
+	} else if (cp <= 0x0000FFFF) {
+		rc = 3;
+		out[0] = (cp >> 12 & 15) | 224;
+		out[1] = (cp >> 6  & 63) | 128;
+		out[2] = (cp       & 63) | 128;
+	} else if (cp <= 0x001FFFFF) {
+		rc = 4;
+		out[0] = (cp >> 18 &  7) | 240;
+		out[1] = (cp >> 12 & 63) | 128;
+		out[2] = (cp >> 6  & 63) | 128;
+		out[3] = (cp       & 63) | 128;
+	} else if (cp <= 0x03FFFFFF) {
+		rc = 5;
+		out[0] = (cp >> 24 &  3) | 248;
+		out[1] = (cp >> 18 & 63) | 128;
+		out[2] = (cp >> 12 & 63) | 128;
+		out[3] = (cp >> 6  & 63) | 128;
+		out[4] = (cp       & 63) | 128;
+	} else if (cp <= 0x7FFFFFFF) {
+		rc = 6;
+		out[0] = (cp >> 30 &  1) | 252;
+		out[1] = (cp >> 24 & 63) | 128;
+		out[2] = (cp >> 18 & 63) | 128;
+		out[3] = (cp >> 12 & 63) | 128;
+		out[4] = (cp >> 6  & 63) | 128;
+		out[5] = (cp       & 63) | 128;
+	} else
+		return 0;
+
+	out[rc] = '\0';
+	return rc;
+}
+
+/*
+ * If the string contains escape sequences,
+ * replace it with an allocated rendering and return 1,
+ * such that the caller can free it after use.
+ * Otherwise, do nothing and return 0.
+ */
+static int
+render_string(char **public, size_t *psz)
+{
+	const char	*src, *scp, *addcp, *seq;
+	char		*dst;
+	size_t		 ssz, dsz, addsz;
+	char		 utfbuf[7], res[6];
+	int		 seqlen, unicode;
+
+	res[0] = '\\';
+	res[1] = '\t';
+	res[2] = ASCII_NBRSP;
+	res[3] = ASCII_HYPH;
+	res[4] = ASCII_BREAK;
+	res[5] = '\0';
+
+	src = scp = *public;
+	ssz = *psz;
+	dst = NULL;
+	dsz = 0;
+
+	while (scp < src + *psz) {
+
+		/* Leave normal characters unchanged. */
+
+		if (strchr(res, *scp) == NULL) {
+			if (dst != NULL)
+				dst[dsz++] = *scp;
+			scp++;
+			continue;
+		}
+
+		/*
+		 * Found something that requires replacing,
+		 * make sure we have a destination buffer.
+		 */
+
+		if (dst == NULL) {
+			dst = mandoc_malloc(ssz + 1);
+			dsz = scp - src;
+			memcpy(dst, src, dsz);
+		}
+
+		/* Handle single-char special characters. */
+
+		switch (*scp) {
+		case '\\':
+			break;
+		case '\t':
+		case ASCII_NBRSP:
+			dst[dsz++] = ' ';
+			scp++;
+			continue;
+		case ASCII_HYPH:
+			dst[dsz++] = '-';
+			/* FALLTHROUGH */
+		case ASCII_BREAK:
+			scp++;
+			continue;
+		default:
+			abort();
+		}
+
+		/*
+		 * Found an escape sequence.
+		 * Read past the slash, then parse it.
+		 * Ignore everything except characters.
+		 */
+
+		scp++;
+		if (mandoc_escape(&scp, &seq, &seqlen) != ESCAPE_SPECIAL)
+			continue;
+
+		/*
+		 * Render the special character
+		 * as either UTF-8 or ASCII.
+		 */
+
+		if (write_utf8) {
+			unicode = mchars_spec2cp(seq, seqlen);
+			if (unicode <= 0)
+				continue;
+			addsz = utf8(unicode, utfbuf);
+			if (addsz == 0)
+				continue;
+			addcp = utfbuf;
+		} else {
+			addcp = mchars_spec2str(seq, seqlen, &addsz);
+			if (addcp == NULL)
+				continue;
+			if (*addcp == ASCII_NBRSP) {
+				addcp = " ";
+				addsz = 1;
+			}
+		}
+
+		/* Copy the rendered glyph into the stream. */
+
+		ssz += addsz;
+		dst = mandoc_realloc(dst, ssz + 1);
+		memcpy(dst + dsz, addcp, addsz);
+		dsz += addsz;
+	}
+	if (dst != NULL) {
+		*public = dst;
+		*psz = dsz;
+	}
+
+	/* Trim trailing whitespace and NUL-terminate. */
+
+	while (*psz > 0 && (*public)[*psz - 1] == ' ')
+		--*psz;
+	if (dst != NULL) {
+		(*public)[*psz] = '\0';
+		return 1;
+	} else
+		return 0;
+}
+
+static void
+dbadd_mlink(const struct mlink *mlink)
+{
+	dba_page_alias(mlink->mpage->dba, mlink->name, NAME_FILE);
+	dba_page_add(mlink->mpage->dba, DBP_SECT, mlink->dsec);
+	dba_page_add(mlink->mpage->dba, DBP_SECT, mlink->fsec);
+	dba_page_add(mlink->mpage->dba, DBP_ARCH, mlink->arch);
+	dba_page_add(mlink->mpage->dba, DBP_FILE, mlink->file);
+}
+
+/*
+ * Flush the current page's terms (and their bits) into the database.
+ * Also, handle escape sequences at the last possible moment.
+ */
+static void
+dbadd(struct dba *dba, struct mpage *mpage)
+{
+	struct mlink	*mlink;
+	struct str	*key;
+	char		*cp;
+	uint64_t	 mask;
+	size_t		 i;
+	unsigned int	 slot;
+	int		 mustfree;
+
+	mlink = mpage->mlinks;
+
+	if (nodb) {
+		for (key = ohash_first(&names, &slot); NULL != key;
+		     key = ohash_next(&names, &slot))
+			free(key);
+		for (key = ohash_first(&strings, &slot); NULL != key;
+		     key = ohash_next(&strings, &slot))
+			free(key);
+		if (0 == debug)
+			return;
+		while (NULL != mlink) {
+			fputs(mlink->name, stdout);
+			if (NULL == mlink->next ||
+			    strcmp(mlink->dsec, mlink->next->dsec) ||
+			    strcmp(mlink->fsec, mlink->next->fsec) ||
+			    strcmp(mlink->arch, mlink->next->arch)) {
+				putchar('(');
+				if ('\0' == *mlink->dsec)
+					fputs(mlink->fsec, stdout);
+				else
+					fputs(mlink->dsec, stdout);
+				if ('\0' != *mlink->arch)
+					printf("/%s", mlink->arch);
+				putchar(')');
+			}
+			mlink = mlink->next;
+			if (NULL != mlink)
+				fputs(", ", stdout);
+		}
+		printf(" - %s\n", mpage->desc);
+		return;
+	}
+
+	if (debug)
+		say(mlink->file, "Adding to database");
+
+	cp = mpage->desc;
+	i = strlen(cp);
+	mustfree = render_string(&cp, &i);
+	mpage->dba = dba_page_new(dba->pages,
+	    *mpage->arch == '\0' ? mlink->arch : mpage->arch,
+	    cp, mlink->file, mpage->form);
+	if (mustfree)
+		free(cp);
+	dba_page_add(mpage->dba, DBP_SECT, mpage->sec);
+
+	while (mlink != NULL) {
+		dbadd_mlink(mlink);
+		mlink = mlink->next;
+	}
+
+	for (key = ohash_first(&names, &slot); NULL != key;
+	     key = ohash_next(&names, &slot)) {
+		assert(key->mpage == mpage);
+		dba_page_alias(mpage->dba, key->key, key->mask);
+		free(key);
+	}
+	for (key = ohash_first(&strings, &slot); NULL != key;
+	     key = ohash_next(&strings, &slot)) {
+		assert(key->mpage == mpage);
+		i = 0;
+		for (mask = TYPE_Xr; mask <= TYPE_Lb; mask *= 2) {
+			if (key->mask & mask)
+				dba_macro_add(dba->macros, i,
+				    key->key, mpage->dba);
+			i++;
+		}
+		free(key);
+	}
+}
+
+static void
+dbprune(struct dba *dba)
+{
+	struct dba_array	*page, *files;
+	char			*file;
+
+	dba_array_FOREACH(dba->pages, page) {
+		files = dba_array_get(page, DBP_FILE);
+		dba_array_FOREACH(files, file) {
+			if (*file < ' ')
+				file++;
+			if (ohash_find(&mlinks, ohash_qlookup(&mlinks,
+			    file)) != NULL) {
+				if (debug)
+					say(file, "Deleting from database");
+				dba_array_del(dba->pages);
+				break;
+			}
+		}
+	}
+}
+
+/*
+ * Write the database from memory to disk.
+ */
+static void
+dbwrite(struct dba *dba)
+{
+	char		 tfn[32];
+	int		 status;
+	pid_t		 child;
+
+	/*
+	 * Do not write empty databases, and delete existing ones
+	 * when makewhatis -u causes them to become empty.
+	 */
+
+	dba_array_start(dba->pages);
+	if (dba_array_next(dba->pages) == NULL) {
+		if (unlink(MANDOC_DB) == -1 && errno != ENOENT)
+			say(MANDOC_DB, "&unlink");
+		return;
+	}
+
+	/*
+	 * Build the database in a temporary file,
+	 * then atomically move it into place.
+	 */
+
+	if (dba_write(MANDOC_DB "~", dba) != -1) {
+		if (rename(MANDOC_DB "~", MANDOC_DB) == -1) {
+			exitcode = (int)MANDOCLEVEL_SYSERR;
+			say(MANDOC_DB, "&rename");
+			unlink(MANDOC_DB "~");
+		}
+		return;
+	}
+
+	/*
+	 * We lack write permission and cannot replace the database
+	 * file, but let's at least check whether the data changed.
+	 */
+
+	(void)strlcpy(tfn, "/tmp/mandocdb.XXXXXXXX", sizeof(tfn));
+	if (mkdtemp(tfn) == NULL) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "&%s", tfn);
+		return;
+	}
+
+	(void)strlcat(tfn, "/" MANDOC_DB, sizeof(tfn));
+	if (dba_write(tfn, dba) == -1) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say(tfn, "&dba_write");
+		goto out;
+	}
+
+	switch (child = fork()) {
+	case -1:
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "&fork cmp");
+		return;
+	case 0:
+		execlp("cmp", "cmp", "-s", tfn, MANDOC_DB, (char *)NULL);
+		say("", "&exec cmp");
+		exit(0);
+	default:
+		break;
+	}
+	if (waitpid(child, &status, 0) == -1) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "&wait cmp");
+	} else if (WIFSIGNALED(status)) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "cmp died from signal %d", WTERMSIG(status));
+	} else if (WEXITSTATUS(status)) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say(MANDOC_DB,
+		    "Data changed, but cannot replace database");
+	}
+
+out:
+	*strrchr(tfn, '/') = '\0';
+	switch (child = fork()) {
+	case -1:
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "&fork rm");
+		return;
+	case 0:
+		execlp("rm", "rm", "-rf", tfn, (char *)NULL);
+		say("", "&exec rm");
+		exit((int)MANDOCLEVEL_SYSERR);
+	default:
+		break;
+	}
+	if (waitpid(child, &status, 0) == -1) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "&wait rm");
+	} else if (WIFSIGNALED(status) || WEXITSTATUS(status)) {
+		exitcode = (int)MANDOCLEVEL_SYSERR;
+		say("", "%s: Cannot remove temporary directory", tfn);
+	}
+}
+
+static int
+set_basedir(const char *targetdir, int report_baddir)
+{
+	static char	 startdir[PATH_MAX];
+	static int	 getcwd_status;  /* 1 = ok, 2 = failure */
+	static int	 chdir_status;  /* 1 = changed directory */
+	char		*cp;
+
+	/*
+	 * Remember the original working directory, if possible.
+	 * This will be needed if the second or a later directory
+	 * on the command line is given as a relative path.
+	 * Do not error out if the current directory is not
+	 * searchable: Maybe it won't be needed after all.
+	 */
+	if (0 == getcwd_status) {
+		if (NULL == getcwd(startdir, sizeof(startdir))) {
+			getcwd_status = 2;
+			(void)strlcpy(startdir, strerror(errno),
+			    sizeof(startdir));
+		} else
+			getcwd_status = 1;
+	}
+
+	/*
+	 * We are leaving the old base directory.
+	 * Do not use it any longer, not even for messages.
+	 */
+	*basedir = '\0';
+
+	/*
+	 * If and only if the directory was changed earlier and
+	 * the next directory to process is given as a relative path,
+	 * first go back, or bail out if that is impossible.
+	 */
+	if (chdir_status && '/' != *targetdir) {
+		if (2 == getcwd_status) {
+			exitcode = (int)MANDOCLEVEL_SYSERR;
+			say("", "getcwd: %s", startdir);
+			return 0;
+		}
+		if (-1 == chdir(startdir)) {
+			exitcode = (int)MANDOCLEVEL_SYSERR;
+			say("", "&chdir %s", startdir);
+			return 0;
+		}
+	}
+
+	/*
+	 * Always resolve basedir to the canonicalized absolute
+	 * pathname and append a trailing slash, such that
+	 * we can reliably check whether files are inside.
+	 */
+	if (NULL == realpath(targetdir, basedir)) {
+		if (report_baddir || errno != ENOENT) {
+			exitcode = (int)MANDOCLEVEL_BADARG;
+			say("", "&%s: realpath", targetdir);
+		}
+		return 0;
+	} else if (-1 == chdir(basedir)) {
+		if (report_baddir || errno != ENOENT) {
+			exitcode = (int)MANDOCLEVEL_BADARG;
+			say("", "&chdir");
+		}
+		return 0;
+	}
+	chdir_status = 1;
+	cp = strchr(basedir, '\0');
+	if ('/' != cp[-1]) {
+		if (cp - basedir >= PATH_MAX - 1) {
+			exitcode = (int)MANDOCLEVEL_SYSERR;
+			say("", "Filename too long");
+			return 0;
+		}
+		*cp++ = '/';
+		*cp = '\0';
+	}
+	return 1;
+}
+
+static void
+say(const char *file, const char *format, ...)
+{
+	va_list		 ap;
+	int		 use_errno;
+
+	if ('\0' != *basedir)
+		fprintf(stderr, "%s", basedir);
+	if ('\0' != *basedir && '\0' != *file)
+		fputc('/', stderr);
+	if ('\0' != *file)
+		fprintf(stderr, "%s", file);
+
+	use_errno = 1;
+	if (NULL != format) {
+		switch (*format) {
+		case '&':
+			format++;
+			break;
+		case '\0':
+			format = NULL;
+			break;
+		default:
+			use_errno = 0;
+			break;
+		}
+	}
+	if (NULL != format) {
+		if ('\0' != *basedir || '\0' != *file)
+			fputs(": ", stderr);
+		va_start(ap, format);
+		vfprintf(stderr, format, ap);
+		va_end(ap);
+	}
+	if (use_errno) {
+		if ('\0' != *basedir || '\0' != *file || NULL != format)
+			fputs(": ", stderr);
+		perror(NULL);
+	} else
+		fputc('\n', stderr);
+}

Added: vendor/mandoc/dist/manpath.c
===================================================================
--- vendor/mandoc/dist/manpath.c	                        (rev 0)
+++ vendor/mandoc/dist/manpath.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,333 @@
+/*	$Id: manpath.c,v 1.35 2017/07/01 09:47:30 schwarze Exp $ */
+/*
+ * Copyright (c) 2011, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "manconf.h"
+
+static	void	 manconf_file(struct manconf *, const char *);
+static	void	 manpath_add(struct manpaths *, const char *, int);
+static	void	 manpath_parseline(struct manpaths *, char *, int);
+
+
+void
+manconf_parse(struct manconf *conf, const char *file,
+		char *defp, char *auxp)
+{
+	char		*insert;
+
+	/* Always prepend -m. */
+	manpath_parseline(&conf->manpath, auxp, 1);
+
+	/* If -M is given, it overrides everything else. */
+	if (NULL != defp) {
+		manpath_parseline(&conf->manpath, defp, 1);
+		return;
+	}
+
+	/* MANPATH and man.conf(5) cooperate. */
+	defp = getenv("MANPATH");
+	if (NULL == file)
+		file = MAN_CONF_FILE;
+
+	/* No MANPATH; use man.conf(5) only. */
+	if (NULL == defp || '\0' == defp[0]) {
+		manconf_file(conf, file);
+		return;
+	}
+
+	/* Prepend man.conf(5) to MANPATH. */
+	if (':' == defp[0]) {
+		manconf_file(conf, file);
+		manpath_parseline(&conf->manpath, defp, 0);
+		return;
+	}
+
+	/* Append man.conf(5) to MANPATH. */
+	if (':' == defp[strlen(defp) - 1]) {
+		manpath_parseline(&conf->manpath, defp, 0);
+		manconf_file(conf, file);
+		return;
+	}
+
+	/* Insert man.conf(5) into MANPATH. */
+	insert = strstr(defp, "::");
+	if (NULL != insert) {
+		*insert++ = '\0';
+		manpath_parseline(&conf->manpath, defp, 0);
+		manconf_file(conf, file);
+		manpath_parseline(&conf->manpath, insert + 1, 0);
+		return;
+	}
+
+	/* MANPATH overrides man.conf(5) completely. */
+	manpath_parseline(&conf->manpath, defp, 0);
+}
+
+void
+manpath_base(struct manpaths *dirs)
+{
+	char path_base[] = MANPATH_BASE;
+	manpath_parseline(dirs, path_base, 0);
+}
+
+/*
+ * Parse a FULL pathname from a colon-separated list of arrays.
+ */
+static void
+manpath_parseline(struct manpaths *dirs, char *path, int complain)
+{
+	char	*dir;
+
+	if (NULL == path)
+		return;
+
+	for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":"))
+		manpath_add(dirs, dir, complain);
+}
+
+/*
+ * Add a directory to the array, ignoring bad directories.
+ * Grow the array one-by-one for simplicity's sake.
+ */
+static void
+manpath_add(struct manpaths *dirs, const char *dir, int complain)
+{
+	char		 buf[PATH_MAX];
+	struct stat	 sb;
+	char		*cp;
+	size_t		 i;
+
+	if (NULL == (cp = realpath(dir, buf))) {
+		if (complain)
+			warn("manpath: %s", dir);
+		return;
+	}
+
+	for (i = 0; i < dirs->sz; i++)
+		if (0 == strcmp(dirs->paths[i], dir))
+			return;
+
+	if (stat(cp, &sb) == -1) {
+		if (complain)
+			warn("manpath: %s", dir);
+		return;
+	}
+
+	dirs->paths = mandoc_reallocarray(dirs->paths,
+	    dirs->sz + 1, sizeof(char *));
+
+	dirs->paths[dirs->sz++] = mandoc_strdup(cp);
+}
+
+void
+manconf_free(struct manconf *conf)
+{
+	size_t		 i;
+
+	for (i = 0; i < conf->manpath.sz; i++)
+		free(conf->manpath.paths[i]);
+
+	free(conf->manpath.paths);
+	free(conf->output.includes);
+	free(conf->output.man);
+	free(conf->output.paper);
+	free(conf->output.style);
+}
+
+static void
+manconf_file(struct manconf *conf, const char *file)
+{
+	const char *const toks[] = { "manpath", "output", "_whatdb" };
+	char manpath_default[] = MANPATH_DEFAULT;
+
+	FILE		*stream;
+	char		*line, *cp, *ep;
+	size_t		 linesz, tok, toklen;
+	ssize_t		 linelen;
+
+	if ((stream = fopen(file, "r")) == NULL)
+		goto out;
+
+	line = NULL;
+	linesz = 0;
+
+	while ((linelen = getline(&line, &linesz, stream)) != -1) {
+		cp = line;
+		ep = cp + linelen - 1;
+		while (ep > cp && isspace((unsigned char)*ep))
+			*ep-- = '\0';
+		while (isspace((unsigned char)*cp))
+			cp++;
+		if (cp == ep || *cp == '#')
+			continue;
+
+		for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
+			toklen = strlen(toks[tok]);
+			if (cp + toklen < ep &&
+			    isspace((unsigned char)cp[toklen]) &&
+			    strncmp(cp, toks[tok], toklen) == 0) {
+				cp += toklen;
+				while (isspace((unsigned char)*cp))
+					cp++;
+				break;
+			}
+		}
+
+		switch (tok) {
+		case 2:  /* _whatdb */
+			while (ep > cp && ep[-1] != '/')
+				ep--;
+			if (ep == cp)
+				continue;
+			*ep = '\0';
+			/* FALLTHROUGH */
+		case 0:  /* manpath */
+			manpath_add(&conf->manpath, cp, 0);
+			*manpath_default = '\0';
+			break;
+		case 1:  /* output */
+			manconf_output(&conf->output, cp, 1);
+			break;
+		default:
+			break;
+		}
+	}
+	free(line);
+	fclose(stream);
+
+out:
+	if (*manpath_default != '\0')
+		manpath_parseline(&conf->manpath, manpath_default, 0);
+}
+
+int
+manconf_output(struct manoutput *conf, const char *cp, int fromfile)
+{
+	const char *const toks[] = {
+	    "includes", "man", "paper", "style",
+	    "indent", "width", "fragment", "mdoc", "noval"
+	};
+
+	const char	*errstr;
+	char		*oldval;
+	size_t		 len, tok;
+
+	for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
+		len = strlen(toks[tok]);
+		if ( ! strncmp(cp, toks[tok], len) &&
+		    strchr(" =	", cp[len]) != NULL) {
+			cp += len;
+			if (*cp == '=')
+				cp++;
+			while (isspace((unsigned char)*cp))
+				cp++;
+			break;
+		}
+	}
+
+	if (tok < 6 && *cp == '\0') {
+		warnx("-O %s=?: Missing argument value", toks[tok]);
+		return -1;
+	}
+	if ((tok == 6 || tok == 7) && *cp != '\0') {
+		warnx("-O %s: Does not take a value: %s", toks[tok], cp);
+		return -1;
+	}
+
+	switch (tok) {
+	case 0:
+		if (conf->includes != NULL) {
+			oldval = mandoc_strdup(conf->includes);
+			break;
+		}
+		conf->includes = mandoc_strdup(cp);
+		return 0;
+	case 1:
+		if (conf->man != NULL) {
+			oldval = mandoc_strdup(conf->man);
+			break;
+		}
+		conf->man = mandoc_strdup(cp);
+		return 0;
+	case 2:
+		if (conf->paper != NULL) {
+			oldval = mandoc_strdup(conf->paper);
+			break;
+		}
+		conf->paper = mandoc_strdup(cp);
+		return 0;
+	case 3:
+		if (conf->style != NULL) {
+			oldval = mandoc_strdup(conf->style);
+			break;
+		}
+		conf->style = mandoc_strdup(cp);
+		return 0;
+	case 4:
+		if (conf->indent) {
+			mandoc_asprintf(&oldval, "%zu", conf->indent);
+			break;
+		}
+		conf->indent = strtonum(cp, 0, 1000, &errstr);
+		if (errstr == NULL)
+			return 0;
+		warnx("-O indent=%s is %s", cp, errstr);
+		return -1;
+	case 5:
+		if (conf->width) {
+			mandoc_asprintf(&oldval, "%zu", conf->width);
+			break;
+		}
+		conf->width = strtonum(cp, 1, 1000, &errstr);
+		if (errstr == NULL)
+			return 0;
+		warnx("-O width=%s is %s", cp, errstr);
+		return -1;
+	case 6:
+		conf->fragment = 1;
+		return 0;
+	case 7:
+		conf->mdoc = 1;
+		return 0;
+	case 8:
+		conf->noval = 1;
+		return 0;
+	default:
+		if (fromfile)
+			warnx("-O %s: Bad argument", cp);
+		return -1;
+	}
+	if (fromfile == 0)
+		warnx("-O %s=%s: Option already set to %s",
+		    toks[tok], cp, oldval);
+	free(oldval);
+	return -1;
+}

Added: vendor/mandoc/dist/mansearch.3
===================================================================
--- vendor/mandoc/dist/mansearch.3	                        (rev 0)
+++ vendor/mandoc/dist/mansearch.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,120 @@
+.\"	$Id: mansearch.3,v 1.5 2017/03/30 22:22:05 schwarze Exp $
+.\"
+.\" Copyright (c) 2014 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: March 30 2017 $
+.Dt MANSEARCH 3
+.Os
+.Sh NAME
+.Nm mansearch
+.Nd search manual page databases
+.Sh SYNOPSIS
+.In stdint.h
+.In manconf.h
+.In mansearch.h
+.Ft int
+.Fo mansearch
+.Fa "const struct mansearch *search"
+.Fa "const struct manpaths *paths"
+.Fa "int argc"
+.Fa "char *argv[]"
+.Fa "struct manpage **res"
+.Fa "size_t *sz"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn mansearch
+function returns information about manuals matching a search query from a
+.Xr mandoc.db 5
+database.
+.Pp
+The query arguments are as follows:
+.Bl -tag -width Ds
+.It Fa "const struct mansearch *search"
+Search options, defined in
+.In mansearch.h .
+.It Fa "const struct manpaths *paths"
+Directories to be searched, defined in
+.In manconf.h .
+.It Fa "int argc" , "char *argv[]"
+Search criteria, usually taken from the command line.
+.El
+.Pp
+The output arguments are as follows:
+.Bl -tag -width Ds
+.It Fa "struct manpage **res"
+Returns a pointer to an array of result structures defined in
+.In mansearch.h .
+The user is expected to call
+.Xr free 3
+on the
+.Va file ,
+.Va names ,
+and
+.Va output
+fields of all structures, as well as the
+.Fa res
+array itself.
+.It Fa "size_t *sz"
+Returns the number of result structures contained in
+.Fa res .
+.El
+.Sh IMPLEMENTATION NOTES
+For each manual page tree, the search is done in two steps.
+In the first step, a list of pages matching the search criteria is built.
+In the second step, the requested information about these pages is
+retrieved from the database and assembled into the
+.Fa res
+array.
+.Pp
+All function mentioned here are defined in the file
+.Pa mansearch.c .
+.Ss Finding matches
+Command line parsing is done by the function
+.Fn exprcomp
+building a singly linked list of
+.Vt expr
+structures, using the helper functions
+.Fn expr_and
+and
+.Fn exprterm .
+.Ss Assembling the results
+The names, sections, and architectures of the manuals found
+are assembled into the
+.Va names
+field of the result structure by the function
+.Fn buildnames .
+.Sh FILES
+.Bl -tag -width mandoc.db -compact
+.It Pa mandoc.db
+The manual page database.
+.El
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr mandoc.db 5 ,
+.Xr makewhatis 8
+.Sh HISTORY
+The
+.Fn mansearch
+subsystem first appeared in
+.Ox 5.6 .
+.Sh AUTHORS
+.An -nosplit
+A module to search manual page databases was first written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+in 2011, at first using the Berkeley DB;
+he rewrote it for SQLite3 in 2012, and
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org
+removed the dependency on SQLite3 in 2016.

Added: vendor/mandoc/dist/mansearch.c
===================================================================
--- vendor/mandoc/dist/mansearch.c	                        (rev 0)
+++ vendor/mandoc/dist/mansearch.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,841 @@
+/*	$Id: mansearch.c,v 1.76 2017/08/02 13:29:04 schwarze Exp $ */
+/*
+ * Copyright (c) 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include <assert.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <glob.h>
+#include <limits.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "manconf.h"
+#include "mansearch.h"
+#include "dbm.h"
+
+struct	expr {
+	/* Used for terms: */
+	struct dbm_match match;   /* Match type and expression. */
+	uint64_t	 bits;    /* Type mask. */
+	/* Used for OR and AND groups: */
+	struct expr	*next;    /* Next child in the parent group. */
+	struct expr	*child;   /* First child in this group. */
+	enum { EXPR_TERM, EXPR_OR, EXPR_AND } type;
+};
+
+const char *const mansearch_keynames[KEY_MAX] = {
+	"arch",	"sec",	"Xr",	"Ar",	"Fa",	"Fl",	"Dv",	"Fn",
+	"Ic",	"Pa",	"Cm",	"Li",	"Em",	"Cd",	"Va",	"Ft",
+	"Tn",	"Er",	"Ev",	"Sy",	"Sh",	"In",	"Ss",	"Ox",
+	"An",	"Mt",	"St",	"Bx",	"At",	"Nx",	"Fx",	"Lk",
+	"Ms",	"Bsx",	"Dx",	"Rs",	"Vt",	"Lb",	"Nm",	"Nd"
+};
+
+
+static	struct ohash	*manmerge(struct expr *, struct ohash *);
+static	struct ohash	*manmerge_term(struct expr *, struct ohash *);
+static	struct ohash	*manmerge_or(struct expr *, struct ohash *);
+static	struct ohash	*manmerge_and(struct expr *, struct ohash *);
+static	char		*buildnames(const struct dbm_page *);
+static	char		*buildoutput(size_t, struct dbm_page *);
+static	size_t		 lstlen(const char *, size_t);
+static	void		 lstcat(char *, size_t *, const char *, const char *);
+static	int		 lstmatch(const char *, const char *);
+static	struct expr	*exprcomp(const struct mansearch *,
+				int, char *[], int *);
+static	struct expr	*expr_and(const struct mansearch *,
+				int, char *[], int *);
+static	struct expr	*exprterm(const struct mansearch *,
+				int, char *[], int *);
+static	void		 exprfree(struct expr *);
+static	int		 manpage_compare(const void *, const void *);
+
+
+int
+mansearch(const struct mansearch *search,
+		const struct manpaths *paths,
+		int argc, char *argv[],
+		struct manpage **res, size_t *sz)
+{
+	char		 buf[PATH_MAX];
+	struct dbm_res	*rp;
+	struct expr	*e;
+	struct dbm_page	*page;
+	struct manpage	*mpage;
+	struct ohash	*htab;
+	size_t		 cur, i, maxres, outkey;
+	unsigned int	 slot;
+	int		 argi, chdir_status, getcwd_status, im;
+
+	argi = 0;
+	if ((e = exprcomp(search, argc, argv, &argi)) == NULL) {
+		*sz = 0;
+		return 0;
+	}
+
+	cur = maxres = 0;
+	if (res != NULL)
+		*res = NULL;
+
+	outkey = KEY_Nd;
+	if (search->outkey != NULL)
+		for (im = 0; im < KEY_MAX; im++)
+			if (0 == strcasecmp(search->outkey,
+			    mansearch_keynames[im])) {
+				outkey = im;
+				break;
+			}
+
+	/*
+	 * Remember the original working directory, if possible.
+	 * This will be needed if the second or a later directory
+	 * is given as a relative path.
+	 * Do not error out if the current directory is not
+	 * searchable: Maybe it won't be needed after all.
+	 */
+
+	if (getcwd(buf, PATH_MAX) == NULL) {
+		getcwd_status = 0;
+		(void)strlcpy(buf, strerror(errno), sizeof(buf));
+	} else
+		getcwd_status = 1;
+
+	/*
+	 * Loop over the directories (containing databases) for us to
+	 * search.
+	 * Don't let missing/bad databases/directories phase us.
+	 * In each, try to open the resident database and, if it opens,
+	 * scan it for our match expression.
+	 */
+
+	chdir_status = 0;
+	for (i = 0; i < paths->sz; i++) {
+		if (chdir_status && paths->paths[i][0] != '/') {
+			if ( ! getcwd_status) {
+				warnx("%s: getcwd: %s", paths->paths[i], buf);
+				continue;
+			} else if (chdir(buf) == -1) {
+				warn("%s", buf);
+				continue;
+			}
+		}
+		if (chdir(paths->paths[i]) == -1) {
+			warn("%s", paths->paths[i]);
+			continue;
+		}
+		chdir_status = 1;
+
+		if (dbm_open(MANDOC_DB) == -1) {
+			if (errno != ENOENT)
+				warn("%s/%s", paths->paths[i], MANDOC_DB);
+			continue;
+		}
+
+		if ((htab = manmerge(e, NULL)) == NULL) {
+			dbm_close();
+			continue;
+		}
+
+		for (rp = ohash_first(htab, &slot); rp != NULL;
+		    rp = ohash_next(htab, &slot)) {
+			page = dbm_page_get(rp->page);
+
+			if (lstmatch(search->sec, page->sect) == 0 ||
+			    lstmatch(search->arch, page->arch) == 0 ||
+			    (search->argmode == ARG_NAME &&
+			     rp->bits <= (int32_t)(NAME_SYN & NAME_MASK)))
+				continue;
+
+			if (res == NULL) {
+				cur = 1;
+				break;
+			}
+			if (cur + 1 > maxres) {
+				maxres += 1024;
+				*res = mandoc_reallocarray(*res,
+				    maxres, sizeof(**res));
+			}
+			mpage = *res + cur;
+			mandoc_asprintf(&mpage->file, "%s/%s",
+			    paths->paths[i], page->file + 1);
+			mpage->names = buildnames(page);
+			mpage->output = buildoutput(outkey, page);
+			mpage->ipath = i;
+			mpage->bits = rp->bits;
+			mpage->sec = *page->sect - '0';
+			if (mpage->sec < 0 || mpage->sec > 9)
+				mpage->sec = 10;
+			mpage->form = *page->file;
+			free(rp);
+			cur++;
+		}
+		ohash_delete(htab);
+		free(htab);
+		dbm_close();
+
+		/*
+		 * In man(1) mode, prefer matches in earlier trees
+		 * over matches in later trees.
+		 */
+
+		if (cur && search->firstmatch)
+			break;
+	}
+	if (res != NULL)
+		qsort(*res, cur, sizeof(struct manpage), manpage_compare);
+	if (chdir_status && getcwd_status && chdir(buf) == -1)
+		warn("%s", buf);
+	exprfree(e);
+	*sz = cur;
+	return res != NULL || cur;
+}
+
+/*
+ * Merge the results for the expression tree rooted at e
+ * into the the result list htab.
+ */
+static struct ohash *
+manmerge(struct expr *e, struct ohash *htab)
+{
+	switch (e->type) {
+	case EXPR_TERM:
+		return manmerge_term(e, htab);
+	case EXPR_OR:
+		return manmerge_or(e->child, htab);
+	case EXPR_AND:
+		return manmerge_and(e->child, htab);
+	default:
+		abort();
+	}
+}
+
+static struct ohash *
+manmerge_term(struct expr *e, struct ohash *htab)
+{
+	struct dbm_res	 res, *rp;
+	uint64_t	 ib;
+	unsigned int	 slot;
+	int		 im;
+
+	if (htab == NULL) {
+		htab = mandoc_malloc(sizeof(*htab));
+		mandoc_ohash_init(htab, 4, offsetof(struct dbm_res, page));
+	}
+
+	for (im = 0, ib = 1; im < KEY_MAX; im++, ib <<= 1) {
+		if ((e->bits & ib) == 0)
+			continue;
+
+		switch (ib) {
+		case TYPE_arch:
+			dbm_page_byarch(&e->match);
+			break;
+		case TYPE_sec:
+			dbm_page_bysect(&e->match);
+			break;
+		case TYPE_Nm:
+			dbm_page_byname(&e->match);
+			break;
+		case TYPE_Nd:
+			dbm_page_bydesc(&e->match);
+			break;
+		default:
+			dbm_page_bymacro(im - 2, &e->match);
+			break;
+		}
+
+		/*
+		 * When hashing for deduplication, use the unique
+		 * page ID itself instead of a hash function;
+		 * that is quite efficient.
+		 */
+
+		for (;;) {
+			res = dbm_page_next();
+			if (res.page == -1)
+				break;
+			slot = ohash_lookup_memory(htab,
+			    (char *)&res, sizeof(res.page), res.page);
+			if ((rp = ohash_find(htab, slot)) != NULL) {
+				rp->bits |= res.bits;
+				continue;
+			}
+			rp = mandoc_malloc(sizeof(*rp));
+			*rp = res;
+			ohash_insert(htab, slot, rp);
+		}
+	}
+	return htab;
+}
+
+static struct ohash *
+manmerge_or(struct expr *e, struct ohash *htab)
+{
+	while (e != NULL) {
+		htab = manmerge(e, htab);
+		e = e->next;
+	}
+	return htab;
+}
+
+static struct ohash *
+manmerge_and(struct expr *e, struct ohash *htab)
+{
+	struct ohash	*hand, *h1, *h2;
+	struct dbm_res	*res;
+	unsigned int	 slot1, slot2;
+
+	/* Evaluate the first term of the AND clause. */
+
+	hand = manmerge(e, NULL);
+
+	while ((e = e->next) != NULL) {
+
+		/* Evaluate the next term and prepare for ANDing. */
+
+		h2 = manmerge(e, NULL);
+		if (ohash_entries(h2) < ohash_entries(hand)) {
+			h1 = h2;
+			h2 = hand;
+		} else
+			h1 = hand;
+		hand = mandoc_malloc(sizeof(*hand));
+		mandoc_ohash_init(hand, 4, offsetof(struct dbm_res, page));
+
+		/* Keep all pages that are in both result sets. */
+
+		for (res = ohash_first(h1, &slot1); res != NULL;
+		    res = ohash_next(h1, &slot1)) {
+			if (ohash_find(h2, ohash_lookup_memory(h2,
+			    (char *)res, sizeof(res->page),
+			    res->page)) == NULL)
+				free(res);
+			else
+				ohash_insert(hand, ohash_lookup_memory(hand,
+				    (char *)res, sizeof(res->page),
+				    res->page), res);
+		}
+
+		/* Discard the merged results. */
+
+		for (res = ohash_first(h2, &slot2); res != NULL;
+		    res = ohash_next(h2, &slot2))
+			free(res);
+		ohash_delete(h2);
+		free(h2);
+		ohash_delete(h1);
+		free(h1);
+	}
+
+	/* Merge the result of the AND into htab. */
+
+	if (htab == NULL)
+		return hand;
+
+	for (res = ohash_first(hand, &slot1); res != NULL;
+	    res = ohash_next(hand, &slot1)) {
+		slot2 = ohash_lookup_memory(htab,
+		    (char *)res, sizeof(res->page), res->page);
+		if (ohash_find(htab, slot2) == NULL)
+			ohash_insert(htab, slot2, res);
+		else
+			free(res);
+	}
+
+	/* Discard the merged result. */
+
+	ohash_delete(hand);
+	free(hand);
+	return htab;
+}
+
+void
+mansearch_free(struct manpage *res, size_t sz)
+{
+	size_t	 i;
+
+	for (i = 0; i < sz; i++) {
+		free(res[i].file);
+		free(res[i].names);
+		free(res[i].output);
+	}
+	free(res);
+}
+
+static int
+manpage_compare(const void *vp1, const void *vp2)
+{
+	const struct manpage	*mp1, *mp2;
+	const char		*cp1, *cp2;
+	size_t			 sz1, sz2;
+	int			 diff;
+
+	mp1 = vp1;
+	mp2 = vp2;
+	if ((diff = mp2->bits - mp1->bits) ||
+	    (diff = mp1->sec - mp2->sec))
+		return diff;
+
+	/* Fall back to alphabetic ordering of names. */
+	sz1 = strcspn(mp1->names, "(");
+	sz2 = strcspn(mp2->names, "(");
+	if (sz1 < sz2)
+		sz1 = sz2;
+	if ((diff = strncasecmp(mp1->names, mp2->names, sz1)))
+		return diff;
+
+	/* For identical names and sections, prefer arch-dependent. */
+	cp1 = strchr(mp1->names + sz1, '/');
+	cp2 = strchr(mp2->names + sz2, '/');
+	return cp1 != NULL && cp2 != NULL ? strcasecmp(cp1, cp2) :
+	    cp1 != NULL ? -1 : cp2 != NULL ? 1 : 0;
+}
+
+static char *
+buildnames(const struct dbm_page *page)
+{
+	char	*buf;
+	size_t	 i, sz;
+
+	sz = lstlen(page->name, 2) + 1 + lstlen(page->sect, 2) +
+	    (page->arch == NULL ? 0 : 1 + lstlen(page->arch, 2)) + 2;
+	buf = mandoc_malloc(sz);
+	i = 0;
+	lstcat(buf, &i, page->name, ", ");
+	buf[i++] = '(';
+	lstcat(buf, &i, page->sect, ", ");
+	if (page->arch != NULL) {
+		buf[i++] = '/';
+		lstcat(buf, &i, page->arch, ", ");
+	}
+	buf[i++] = ')';
+	buf[i++] = '\0';
+	assert(i == sz);
+	return buf;
+}
+
+/*
+ * Count the buffer space needed to print the NUL-terminated
+ * list of NUL-terminated strings, when printing sep separator
+ * characters between strings.
+ */
+static size_t
+lstlen(const char *cp, size_t sep)
+{
+	size_t	 sz;
+
+	for (sz = 0; *cp != '\0'; cp++) {
+
+		/* Skip names appearing only in the SYNOPSIS. */
+		if (*cp <= (char)(NAME_SYN & NAME_MASK)) {
+			while (*cp != '\0')
+				cp++;
+			continue;
+		}
+
+		/* Skip name class markers. */
+		if (*cp < ' ')
+			cp++;
+
+		/* Print a separator before each but the first string. */
+		if (sz)
+			sz += sep;
+
+		/* Copy one string. */
+		while (*cp != '\0') {
+			sz++;
+			cp++;
+		}
+	}
+	return sz;
+}
+
+/*
+ * Print the NUL-terminated list of NUL-terminated strings
+ * into the buffer, seperating strings with sep.
+ */
+static void
+lstcat(char *buf, size_t *i, const char *cp, const char *sep)
+{
+	const char	*s;
+	size_t		 i_start;
+
+	for (i_start = *i; *cp != '\0'; cp++) {
+
+		/* Skip names appearing only in the SYNOPSIS. */
+		if (*cp <= (char)(NAME_SYN & NAME_MASK)) {
+			while (*cp != '\0')
+				cp++;
+			continue;
+		}
+
+		/* Skip name class markers. */
+		if (*cp < ' ')
+			cp++;
+
+		/* Print a separator before each but the first string. */
+		if (*i > i_start) {
+			s = sep;
+			while (*s != '\0')
+				buf[(*i)++] = *s++;
+		}
+
+		/* Copy one string. */
+		while (*cp != '\0')
+			buf[(*i)++] = *cp++;
+	}
+
+}
+
+/*
+ * Return 1 if the string *want occurs in any of the strings
+ * in the NUL-terminated string list *have, or 0 otherwise.
+ * If either argument is NULL or empty, assume no filtering
+ * is desired and return 1.
+ */
+static int
+lstmatch(const char *want, const char *have)
+{
+        if (want == NULL || have == NULL || *have == '\0')
+                return 1;
+        while (*have != '\0') {
+                if (strcasestr(have, want) != NULL)
+                        return 1;
+                have = strchr(have, '\0') + 1;
+        }
+        return 0;
+}
+
+/*
+ * Build a list of values taken by the macro im in the manual page.
+ */
+static char *
+buildoutput(size_t im, struct dbm_page *page)
+{
+	const char	*oldoutput, *sep, *input;
+	char		*output, *newoutput, *value;
+	size_t		 sz, i;
+
+	switch (im) {
+	case KEY_Nd:
+		return mandoc_strdup(page->desc);
+	case KEY_Nm:
+		input = page->name;
+		break;
+	case KEY_sec:
+		input = page->sect;
+		break;
+	case KEY_arch:
+		input = page->arch;
+		if (input == NULL)
+			input = "all\0";
+		break;
+	default:
+		input = NULL;
+		break;
+	}
+
+	if (input != NULL) {
+		sz = lstlen(input, 3) + 1;
+		output = mandoc_malloc(sz);
+		i = 0;
+		lstcat(output, &i, input, " # ");
+		output[i++] = '\0';
+		assert(i == sz);
+		return output;
+	}
+
+	output = NULL;
+	dbm_macro_bypage(im - 2, page->addr);
+	while ((value = dbm_macro_next()) != NULL) {
+		if (output == NULL) {
+			oldoutput = "";
+			sep = "";
+		} else {
+			oldoutput = output;
+			sep = " # ";
+		}
+		mandoc_asprintf(&newoutput, "%s%s%s", oldoutput, sep, value);
+		free(output);
+		output = newoutput;
+	}
+	return output;
+}
+
+/*
+ * Compile a set of string tokens into an expression.
+ * Tokens in "argv" are assumed to be individual expression atoms (e.g.,
+ * "(", "foo=bar", etc.).
+ */
+static struct expr *
+exprcomp(const struct mansearch *search, int argc, char *argv[], int *argi)
+{
+	struct expr	*parent, *child;
+	int		 needterm, nested;
+
+	if ((nested = *argi) == argc)
+		return NULL;
+	needterm = 1;
+	parent = child = NULL;
+	while (*argi < argc) {
+		if (strcmp(")", argv[*argi]) == 0) {
+			if (needterm)
+				warnx("missing term "
+				    "before closing parenthesis");
+			needterm = 0;
+			if (nested)
+				break;
+			warnx("ignoring unmatched right parenthesis");
+			++*argi;
+			continue;
+		}
+		if (strcmp("-o", argv[*argi]) == 0) {
+			if (needterm) {
+				if (*argi > 0)
+					warnx("ignoring -o after %s",
+					    argv[*argi - 1]);
+				else
+					warnx("ignoring initial -o");
+			}
+			needterm = 1;
+			++*argi;
+			continue;
+		}
+		needterm = 0;
+		if (child == NULL) {
+			child = expr_and(search, argc, argv, argi);
+			continue;
+		}
+		if (parent == NULL) {
+			parent = mandoc_calloc(1, sizeof(*parent));
+			parent->type = EXPR_OR;
+			parent->next = NULL;
+			parent->child = child;
+		}
+		child->next = expr_and(search, argc, argv, argi);
+		child = child->next;
+	}
+	if (needterm && *argi)
+		warnx("ignoring trailing %s", argv[*argi - 1]);
+	return parent == NULL ? child : parent;
+}
+
+static struct expr *
+expr_and(const struct mansearch *search, int argc, char *argv[], int *argi)
+{
+	struct expr	*parent, *child;
+	int		 needterm;
+
+	needterm = 1;
+	parent = child = NULL;
+	while (*argi < argc) {
+		if (strcmp(")", argv[*argi]) == 0) {
+			if (needterm)
+				warnx("missing term "
+				    "before closing parenthesis");
+			needterm = 0;
+			break;
+		}
+		if (strcmp("-o", argv[*argi]) == 0)
+			break;
+		if (strcmp("-a", argv[*argi]) == 0) {
+			if (needterm) {
+				if (*argi > 0)
+					warnx("ignoring -a after %s",
+					    argv[*argi - 1]);
+				else
+					warnx("ignoring initial -a");
+			}
+			needterm = 1;
+			++*argi;
+			continue;
+		}
+		if (needterm == 0)
+			break;
+		if (child == NULL) {
+			child = exprterm(search, argc, argv, argi);
+			if (child != NULL)
+				needterm = 0;
+			continue;
+		}
+		needterm = 0;
+		if (parent == NULL) {
+			parent = mandoc_calloc(1, sizeof(*parent));
+			parent->type = EXPR_AND;
+			parent->next = NULL;
+			parent->child = child;
+		}
+		child->next = exprterm(search, argc, argv, argi);
+		if (child->next != NULL) {
+			child = child->next;
+			needterm = 0;
+		}
+	}
+	if (needterm && *argi)
+		warnx("ignoring trailing %s", argv[*argi - 1]);
+	return parent == NULL ? child : parent;
+}
+
+static struct expr *
+exprterm(const struct mansearch *search, int argc, char *argv[], int *argi)
+{
+	char		 errbuf[BUFSIZ];
+	struct expr	*e;
+	char		*key, *val;
+	uint64_t	 iterbit;
+	int		 cs, i, irc;
+
+	if (strcmp("(", argv[*argi]) == 0) {
+		++*argi;
+		e = exprcomp(search, argc, argv, argi);
+		if (*argi < argc) {
+			assert(strcmp(")", argv[*argi]) == 0);
+			++*argi;
+		} else
+			warnx("unclosed parenthesis");
+		return e;
+	}
+
+	if (strcmp("-i", argv[*argi]) == 0 && *argi + 1 < argc) {
+		cs = 0;
+		++*argi;
+	} else
+		cs = 1;
+
+	e = mandoc_calloc(1, sizeof(*e));
+	e->type = EXPR_TERM;
+	e->bits = 0;
+	e->next = NULL;
+	e->child = NULL;
+
+	if (search->argmode == ARG_NAME) {
+		e->bits = TYPE_Nm;
+		e->match.type = DBM_EXACT;
+		e->match.str = argv[(*argi)++];
+		return e;
+	}
+
+	/*
+	 * Separate macro keys from search string.
+	 * If needed, request regular expression handling.
+	 */
+
+	if (search->argmode == ARG_WORD) {
+		e->bits = TYPE_Nm;
+		e->match.type = DBM_REGEX;
+#if HAVE_REWB_BSD
+		mandoc_asprintf(&val, "[[:<:]]%s[[:>:]]", argv[*argi]);
+#elif HAVE_REWB_SYSV
+		mandoc_asprintf(&val, "\\<%s\\>", argv[*argi]);
+#else
+		mandoc_asprintf(&val,
+		    "(^|[^a-zA-Z01-9_])%s([^a-zA-Z01-9_]|$)", argv[*argi]);
+#endif
+		cs = 0;
+	} else if ((val = strpbrk(argv[*argi], "=~")) == NULL) {
+		e->bits = TYPE_Nm | TYPE_Nd;
+		e->match.type = DBM_SUB;
+		e->match.str = argv[*argi];
+	} else {
+		if (val == argv[*argi])
+			e->bits = TYPE_Nm | TYPE_Nd;
+		if (*val == '=') {
+			e->match.type = DBM_SUB;
+			e->match.str = val + 1;
+		} else
+			e->match.type = DBM_REGEX;
+		*val++ = '\0';
+		if (strstr(argv[*argi], "arch") != NULL)
+			cs = 0;
+	}
+
+	/* Compile regular expressions. */
+
+	if (e->match.type == DBM_REGEX) {
+		e->match.re = mandoc_malloc(sizeof(*e->match.re));
+		irc = regcomp(e->match.re, val,
+		    REG_EXTENDED | REG_NOSUB | (cs ? 0 : REG_ICASE));
+		if (irc) {
+			regerror(irc, e->match.re, errbuf, sizeof(errbuf));
+			warnx("regcomp /%s/: %s", val, errbuf);
+		}
+		if (search->argmode == ARG_WORD)
+			free(val);
+		if (irc) {
+			free(e->match.re);
+			free(e);
+			++*argi;
+			return NULL;
+		}
+	}
+
+	if (e->bits) {
+		++*argi;
+		return e;
+	}
+
+	/*
+	 * Parse out all possible fields.
+	 * If the field doesn't resolve, bail.
+	 */
+
+	while (NULL != (key = strsep(&argv[*argi], ","))) {
+		if ('\0' == *key)
+			continue;
+		for (i = 0, iterbit = 1; i < KEY_MAX; i++, iterbit <<= 1) {
+			if (0 == strcasecmp(key, mansearch_keynames[i])) {
+				e->bits |= iterbit;
+				break;
+			}
+		}
+		if (i == KEY_MAX) {
+			if (strcasecmp(key, "any"))
+				warnx("treating unknown key "
+				    "\"%s\" as \"any\"", key);
+			e->bits |= ~0ULL;
+		}
+	}
+
+	++*argi;
+	return e;
+}
+
+static void
+exprfree(struct expr *e)
+{
+	if (e->next != NULL)
+		exprfree(e->next);
+	if (e->child != NULL)
+		exprfree(e->child);
+	free(e);
+}

Added: vendor/mandoc/dist/mansearch.h
===================================================================
--- vendor/mandoc/dist/mansearch.h	                        (rev 0)
+++ vendor/mandoc/dist/mansearch.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,118 @@
+/*	$Id: mansearch.h,v 1.28 2017/04/17 20:05:08 schwarze Exp $ */
+/*
+ * Copyright (c) 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2016, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define	MANDOC_DB	 "mandoc.db"
+#define	MANDOCDB_MAGIC	 0x3a7d0cdb
+#define	MANDOCDB_VERSION 1
+
+#define	MACRO_MAX	 36
+#define	KEY_arch	 0
+#define	KEY_sec		 1
+#define	KEY_Nm		 38
+#define	KEY_Nd		 39
+#define	KEY_MAX		 40
+
+#define	TYPE_arch	 0x0000000000000001ULL
+#define	TYPE_sec	 0x0000000000000002ULL
+#define	TYPE_Xr		 0x0000000000000004ULL
+#define	TYPE_Ar		 0x0000000000000008ULL
+#define	TYPE_Fa		 0x0000000000000010ULL
+#define	TYPE_Fl		 0x0000000000000020ULL
+#define	TYPE_Dv		 0x0000000000000040ULL
+#define	TYPE_Fn		 0x0000000000000080ULL
+#define	TYPE_Ic		 0x0000000000000100ULL
+#define	TYPE_Pa		 0x0000000000000200ULL
+#define	TYPE_Cm		 0x0000000000000400ULL
+#define	TYPE_Li		 0x0000000000000800ULL
+#define	TYPE_Em		 0x0000000000001000ULL
+#define	TYPE_Cd		 0x0000000000002000ULL
+#define	TYPE_Va		 0x0000000000004000ULL
+#define	TYPE_Ft		 0x0000000000008000ULL
+#define	TYPE_Tn		 0x0000000000010000ULL
+#define	TYPE_Er		 0x0000000000020000ULL
+#define	TYPE_Ev		 0x0000000000040000ULL
+#define	TYPE_Sy		 0x0000000000080000ULL
+#define	TYPE_Sh		 0x0000000000100000ULL
+#define	TYPE_In		 0x0000000000200000ULL
+#define	TYPE_Ss		 0x0000000000400000ULL
+#define	TYPE_Ox		 0x0000000000800000ULL
+#define	TYPE_An		 0x0000000001000000ULL
+#define	TYPE_Mt		 0x0000000002000000ULL
+#define	TYPE_St		 0x0000000004000000ULL
+#define	TYPE_Bx		 0x0000000008000000ULL
+#define	TYPE_At		 0x0000000010000000ULL
+#define	TYPE_Nx		 0x0000000020000000ULL
+#define	TYPE_Fx		 0x0000000040000000ULL
+#define	TYPE_Lk		 0x0000000080000000ULL
+#define	TYPE_Ms		 0x0000000100000000ULL
+#define	TYPE_Bsx	 0x0000000200000000ULL
+#define	TYPE_Dx		 0x0000000400000000ULL
+#define	TYPE_Rs		 0x0000000800000000ULL
+#define	TYPE_Vt		 0x0000001000000000ULL
+#define	TYPE_Lb		 0x0000002000000000ULL
+#define	TYPE_Nm		 0x0000004000000000ULL
+#define	TYPE_Nd		 0x0000008000000000ULL
+
+#define	NAME_SYN	 0x0000004000000001ULL
+#define	NAME_FIRST	 0x0000004000000004ULL
+#define	NAME_TITLE	 0x0000004000000006ULL
+#define	NAME_HEAD	 0x0000004000000008ULL
+#define	NAME_FILE	 0x0000004000000010ULL
+#define	NAME_MASK	 0x000000000000001fULL
+
+enum	form {
+	FORM_SRC = 1,	/* Format is mdoc(7) or man(7). */
+	FORM_CAT,	/* Manual page is preformatted. */
+	FORM_NONE	/* Format is unknown. */
+};
+
+enum	argmode {
+	ARG_FILE = 0,
+	ARG_NAME,
+	ARG_WORD,
+	ARG_EXPR
+};
+
+struct	manpage {
+	char		*file; /* to be prefixed by manpath */
+	char		*names; /* a list of names with sections */
+	char		*output; /* user-defined additional output */
+	size_t		 ipath; /* number of the manpath */
+	uint64_t	 bits; /* name type mask */
+	int		 sec; /* section number, 10 means invalid */
+	enum form	 form;
+};
+
+struct	mansearch {
+	const char	*arch; /* architecture/NULL */
+	const char	*sec; /* mansection/NULL */
+	const char	*outkey; /* show content of this macro */
+	enum argmode	 argmode; /* interpretation of arguments */
+	int		 firstmatch; /* first matching database only */
+};
+
+
+struct	manpaths;
+
+int	mansearch(const struct mansearch *cfg, /* options */
+		const struct manpaths *paths, /* manpaths */
+		int argc, /* size of argv */
+		char *argv[],  /* search terms */
+		struct manpage **res, /* results */
+		size_t *ressz); /* results returned */
+void	mansearch_free(struct manpage *, size_t);

Added: vendor/mandoc/dist/mchars_alloc.3
===================================================================
--- vendor/mandoc/dist/mchars_alloc.3	                        (rev 0)
+++ vendor/mandoc/dist/mchars_alloc.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,227 @@
+.\"	$Id: mchars_alloc.3,v 1.4 2016/07/07 19:19:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2014 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 7 2016 $
+.Dt MCHARS_ALLOC 3
+.Os
+.Sh NAME
+.Nm mchars_alloc ,
+.Nm mchars_free ,
+.Nm mchars_num2char ,
+.Nm mchars_num2uc ,
+.Nm mchars_spec2cp ,
+.Nm mchars_spec2str ,
+.Nm mchars_uc2str
+.Nd character table for mandoc
+.Sh SYNOPSIS
+.In sys/types.h
+.In mandoc.h
+.Ft void
+.Fn mchars_alloc void
+.Ft void
+.Fn mchars_free void
+.Ft char
+.Fo mchars_num2char
+.Fa "const char *decimal"
+.Fa "size_t sz"
+.Fc
+.Ft int
+.Fo mchars_num2uc
+.Fa "const char *hexadecimal"
+.Fa "size_t sz"
+.Fc
+.Ft int
+.Fo mchars_spec2cp
+.Fa "const char *name"
+.Fa "size_t sz"
+.Fc
+.Ft "const char *"
+.Fo mchars_spec2str
+.Fa "const char *name"
+.Fa "size_t sz"
+.Fa "size_t *rsz"
+.Fc
+.Ft "const char *"
+.Fn mchars_uc2str "int codepoint"
+.Sh DESCRIPTION
+These functions translate Unicode character numbers and
+.Xr roff 7
+character names into glyphs.
+See
+.Xr mandoc_char 7
+for a list of
+.Xr roff 7
+special characters.
+These functions are intended for external use by programs formatting
+.Xr mdoc 7
+and
+.Xr man 7
+pages for output, for example the
+.Xr mandoc 1
+output formatter modules and
+.Xr makewhatis 8 .
+The
+.Fa decimal ,
+.Fa hexadecimal ,
+.Fa name ,
+and
+.Fa size
+input arguments are usually obtained from the
+.Xr mandoc_escape 3
+parser function.
+.Pp
+The function
+.Fn mchars_num2char
+converts a
+.Fa decimal
+string representation of a character number consisting of
+.Fa sz
+digits into a printable ASCII character.
+If the input string is non-numeric or does not represent a printable
+ASCII character, the NUL character
+.Pq Sq \e0
+is returned.
+For example, the
+.Xr mandoc 1
+.Fl Tascii ,
+.Fl Tutf8 ,
+and
+.Fl Thtml
+output modules use this function to render
+.Xr roff 7
+.Ic \eN
+escape sequences.
+.Pp
+The function
+.Fn mchars_num2uc
+converts a
+.Fa hexadecimal
+string representation of a Unicode codepoint consisting of
+.Fa sz
+digits into an integer representation.
+If the input string is non-numeric or represents an ASCII character,
+the NUL character
+.Pq Sq \e0
+is returned.
+For example, the
+.Xr mandoc 1
+.Fl Tutf8
+and
+.Fl Thtml
+output modules use this function to render
+.Xr roff 7
+.Ic \e[u Ns Ar XXXX Ns Ic \&]
+and
+.Ic \eC\(aqu Ns Ar XXXX Ns Ic \(aq
+escape sequences.
+.Pp
+The function
+.Fn mchars_alloc
+initializes a static
+.Vt "struct ohash"
+object for subsequent use by the following two lookup functions.
+When no longer needed, this object can be destroyed with
+.Fn mchars_free .
+.Pp
+The function
+.Fn mchars_spec2cp
+looks up a
+.Xr roff 7
+special character
+.Fa name
+consisting of
+.Fa sz
+characters and returns the corresponding Unicode codepoint.
+If the
+.Ar name
+is not recognized, \-1 is returned.
+For example, the
+.Xr mandoc 1
+.Fl Tutf8
+and
+.Fl Thtml
+output modules use this function to render
+.Xr roff 7
+.Ic \e[ Ns Ar name Ns Ic \&]
+and
+.Ic \eC\(aq Ns Ar name Ns Ic \(aq
+escape sequences.
+.Pp
+The function
+.Fn mchars_spec2str
+looks up a
+.Xr roff 7
+special character
+.Fa name
+consisting of
+.Fa sz
+characters and returns an ASCII string representation.
+The length of the representation is returned in
+.Fa rsz .
+In many cases, the meaning of such ASCII representations
+is not quite obvious, so using
+.Xr roff 7
+special characters in documents intended for ASCII rendering
+is usually a bad idea.
+If the
+.Ar name
+is not recognized,
+.Dv NULL
+is returned.
+For example,
+.Xr makewhatis 8
+and the
+.Xr mandoc 1
+.Fl Tascii
+output module use this function to render
+.Xr roff 7
+.Ic \e[ Ns Ar name Ns Ic \&]
+and
+.Ic \eC\(aq Ns Ar name Ns Ic \(aq
+escape sequences.
+.Pp
+The function
+.Fn mchars_uc2str
+performs a reverse lookup of the Unicode
+.Fa codepoint
+and returns an ASCII string representation, or the string
+.Qq <?>
+if none is available.
+.Sh FILES
+These funtions are implemented in the file
+.Pa chars.c .
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr mandoc_escape 3 ,
+.Xr ohash_init 3 ,
+.Xr mandoc_char 7 ,
+.Xr roff 7
+.Sh HISTORY
+These functions and their predecessors have been available since the
+following mandoc versions:
+.Bl -column "mchars_num2char()" "1.11.3" "chars_num2char()" "1.10.10"
+.It Sy function Ta since Ta Sy predecessor Ta since
+.It Fn mchars_alloc Ta 1.11.3 Ta Fn ascii2htab Ta 1.5.3
+.It Fn mchars_free Ta 1.11.2 Ta Fn asciifree Ta 1.6.0
+.It Fn mchars_num2char Ta 1.11.2 Ta Fn chars_num2char Ta 1.10.10
+.It Fn mchars_num2uc Ta 1.11.3 Ta \(em Ta \(em
+.It Fn mchars_spec2cp Ta 1.11.2 Ta Fn chars_spec2cp Ta 1.10.5
+.It Fn mchars_spec2str Ta 1.11.2 Ta Fn a2ascii Ta 1.5.3
+.It Fn mchars_uc2str Ta 1.13.2 Ta \(em Ta \(em
+.El
+.Sh AUTHORS
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org

Added: vendor/mandoc/dist/mdoc.7
===================================================================
--- vendor/mandoc/dist/mdoc.7	                        (rev 0)
+++ vendor/mandoc/dist/mdoc.7	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3220 @@
+.\"	$Id: mdoc.7,v 1.269 2017/07/20 16:24:53 schwarze Exp $
+.\"
+.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2010, 2011, 2013-2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 20 2017 $
+.Dt MDOC 7
+.Os
+.Sh NAME
+.Nm mdoc
+.Nd semantic markup language for formatting manual pages
+.Sh DESCRIPTION
+The
+.Nm mdoc
+language supports authoring of manual pages for the
+.Xr man 1
+utility by allowing semantic annotations of words, phrases,
+page sections and complete manual pages.
+Such annotations are used by formatting tools to achieve a uniform
+presentation across all manuals written in
+.Nm ,
+and to support hyperlinking if supported by the output medium.
+.Pp
+This reference document describes the structure of manual pages
+and the syntax and usage of the
+.Nm
+language.
+The reference implementation of a parsing and formatting tool is
+.Xr mandoc 1 ;
+the
+.Sx COMPATIBILITY
+section describes compatibility with other implementations.
+.Pp
+In an
+.Nm
+document, lines beginning with the control character
+.Sq \&.
+are called
+.Dq macro lines .
+The first word is the macro name.
+It consists of two or three letters.
+Most macro names begin with a capital letter.
+For a list of available macros, see
+.Sx MACRO OVERVIEW .
+The words following the macro name are arguments to the macro, optionally
+including the names of other, callable macros; see
+.Sx MACRO SYNTAX
+for details.
+.Pp
+Lines not beginning with the control character are called
+.Dq text lines .
+They provide free-form text to be printed; the formatting of the text
+depends on the respective processing context:
+.Bd -literal -offset indent
+\&.Sh Macro lines change control state.
+Text lines are interpreted within the current state.
+.Ed
+.Pp
+Many aspects of the basic syntax of the
+.Nm
+language are based on the
+.Xr roff 7
+language; see the
+.Em LANGUAGE SYNTAX
+and
+.Em MACRO SYNTAX
+sections in the
+.Xr roff 7
+manual for details, in particular regarding
+comments, escape sequences, whitespace, and quoting.
+However, using
+.Xr roff 7
+requests in
+.Nm
+documents is discouraged;
+.Xr mandoc 1
+supports some of them merely for backward compatibility.
+.Sh MANUAL STRUCTURE
+A well-formed
+.Nm
+document consists of a document prologue followed by one or more
+sections.
+.Pp
+The prologue, which consists of the
+.Sx \&Dd ,
+.Sx \&Dt ,
+and
+.Sx \&Os
+macros in that order, is required for every document.
+.Pp
+The first section (sections are denoted by
+.Sx \&Sh )
+must be the NAME section, consisting of at least one
+.Sx \&Nm
+followed by
+.Sx \&Nd .
+.Pp
+Following that, convention dictates specifying at least the
+.Em SYNOPSIS
+and
+.Em DESCRIPTION
+sections, although this varies between manual sections.
+.Pp
+The following is a well-formed skeleton
+.Nm
+file for a utility
+.Qq progname :
+.Bd -literal -offset indent
+\&.Dd $\&Mdocdate$
+\&.Dt PROGNAME section
+\&.Os
+\&.Sh NAME
+\&.Nm progname
+\&.Nd one line about what it does
+\&.\e\(dq .Sh LIBRARY
+\&.\e\(dq For sections 2, 3, and 9 only.
+\&.\e\(dq Not used in OpenBSD.
+\&.Sh SYNOPSIS
+\&.Nm progname
+\&.Op Fl options
+\&.Ar
+\&.Sh DESCRIPTION
+The
+\&.Nm
+utility processes files ...
+\&.\e\(dq .Sh CONTEXT
+\&.\e\(dq For section 9 functions only.
+\&.\e\(dq .Sh IMPLEMENTATION NOTES
+\&.\e\(dq Not used in OpenBSD.
+\&.\e\(dq .Sh RETURN VALUES
+\&.\e\(dq For sections 2, 3, and 9 function return values only.
+\&.\e\(dq .Sh ENVIRONMENT
+\&.\e\(dq For sections 1, 6, 7, and 8 only.
+\&.\e\(dq .Sh FILES
+\&.\e\(dq .Sh EXIT STATUS
+\&.\e\(dq For sections 1, 6, and 8 only.
+\&.\e\(dq .Sh EXAMPLES
+\&.\e\(dq .Sh DIAGNOSTICS
+\&.\e\(dq For sections 1, 4, 6, 7, 8, and 9 printf/stderr messages only.
+\&.\e\(dq .Sh ERRORS
+\&.\e\(dq For sections 2, 3, 4, and 9 errno settings only.
+\&.\e\(dq .Sh SEE ALSO
+\&.\e\(dq .Xr foobar 1
+\&.\e\(dq .Sh STANDARDS
+\&.\e\(dq .Sh HISTORY
+\&.\e\(dq .Sh AUTHORS
+\&.\e\(dq .Sh CAVEATS
+\&.\e\(dq .Sh BUGS
+\&.\e\(dq .Sh SECURITY CONSIDERATIONS
+\&.\e\(dq Not used in OpenBSD.
+.Ed
+.Pp
+The sections in an
+.Nm
+document are conventionally ordered as they appear above.
+Sections should be composed as follows:
+.Bl -ohang -offset Ds
+.It Em NAME
+The name(s) and a one line description of the documented material.
+The syntax for this as follows:
+.Bd -literal -offset indent
+\&.Nm name0 ,
+\&.Nm name1 ,
+\&.Nm name2
+\&.Nd a one line description
+.Ed
+.Pp
+Multiple
+.Sq \&Nm
+names should be separated by commas.
+.Pp
+The
+.Sx \&Nm
+macro(s) must precede the
+.Sx \&Nd
+macro.
+.Pp
+See
+.Sx \&Nm
+and
+.Sx \&Nd .
+.It Em LIBRARY
+The name of the library containing the documented material, which is
+assumed to be a function in a section 2, 3, or 9 manual.
+The syntax for this is as follows:
+.Bd -literal -offset indent
+\&.Lb libarm
+.Ed
+.Pp
+See
+.Sx \&Lb .
+.It Em SYNOPSIS
+Documents the utility invocation syntax, function call syntax, or device
+configuration.
+.Pp
+For the first, utilities (sections 1, 6, and 8), this is
+generally structured as follows:
+.Bd -literal -offset indent
+\&.Nm bar
+\&.Op Fl v
+\&.Op Fl o Ar file
+\&.Op Ar
+\&.Nm foo
+\&.Op Fl v
+\&.Op Fl o Ar file
+\&.Op Ar
+.Ed
+.Pp
+Commands should be ordered alphabetically.
+.Pp
+For the second, function calls (sections 2, 3, 9):
+.Bd -literal -offset indent
+\&.In header.h
+\&.Vt extern const char *global;
+\&.Ft "char *"
+\&.Fn foo "const char *src"
+\&.Ft "char *"
+\&.Fn bar "const char *src"
+.Ed
+.Pp
+Ordering of
+.Sx \&In ,
+.Sx \&Vt ,
+.Sx \&Fn ,
+and
+.Sx \&Fo
+macros should follow C header-file conventions.
+.Pp
+And for the third, configurations (section 4):
+.Bd -literal -offset indent
+\&.Cd \(dqit* at isa? port 0x2e\(dq
+\&.Cd \(dqit* at isa? port 0x4e\(dq
+.Ed
+.Pp
+Manuals not in these sections generally don't need a
+.Em SYNOPSIS .
+.Pp
+Some macros are displayed differently in the
+.Em SYNOPSIS
+section, particularly
+.Sx \&Nm ,
+.Sx \&Cd ,
+.Sx \&Fd ,
+.Sx \&Fn ,
+.Sx \&Fo ,
+.Sx \&In ,
+.Sx \&Vt ,
+and
+.Sx \&Ft .
+All of these macros are output on their own line.
+If two such dissimilar macros are pairwise invoked (except for
+.Sx \&Ft
+before
+.Sx \&Fo
+or
+.Sx \&Fn ) ,
+they are separated by a vertical space, unless in the case of
+.Sx \&Fo ,
+.Sx \&Fn ,
+and
+.Sx \&Ft ,
+which are always separated by vertical space.
+.Pp
+When text and macros following an
+.Sx \&Nm
+macro starting an input line span multiple output lines,
+all output lines but the first will be indented to align
+with the text immediately following the
+.Sx \&Nm
+macro, up to the next
+.Sx \&Nm ,
+.Sx \&Sh ,
+or
+.Sx \&Ss
+macro or the end of an enclosing block, whichever comes first.
+.It Em DESCRIPTION
+This begins with an expansion of the brief, one line description in
+.Em NAME :
+.Bd -literal -offset indent
+The
+\&.Nm
+utility does this, that, and the other.
+.Ed
+.Pp
+It usually follows with a breakdown of the options (if documenting a
+command), such as:
+.Bd -literal -offset indent
+The arguments are as follows:
+\&.Bl \-tag \-width Ds
+\&.It Fl v
+Print verbose information.
+\&.El
+.Ed
+.Pp
+List the options in alphabetical order,
+uppercase before lowercase for each letter and
+with no regard to whether an option takes an argument.
+Put digits in ascending order before all letter options.
+.Pp
+Manuals not documenting a command won't include the above fragment.
+.Pp
+Since the
+.Em DESCRIPTION
+section usually contains most of the text of a manual, longer manuals
+often use the
+.Sx \&Ss
+macro to form subsections.
+In very long manuals, the
+.Em DESCRIPTION
+may be split into multiple sections, each started by an
+.Sx \&Sh
+macro followed by a non-standard section name, and each having
+several subsections, like in the present
+.Nm
+manual.
+.It Em CONTEXT
+This section lists the contexts in which functions can be called in section 9.
+The contexts are autoconf, process, or interrupt.
+.It Em IMPLEMENTATION NOTES
+Implementation-specific notes should be kept here.
+This is useful when implementing standard functions that may have side
+effects or notable algorithmic implications.
+.It Em RETURN VALUES
+This section documents the
+return values of functions in sections 2, 3, and 9.
+.Pp
+See
+.Sx \&Rv .
+.It Em ENVIRONMENT
+Lists the environment variables used by the utility,
+and explains the syntax and semantics of their values.
+The
+.Xr environ 7
+manual provides examples of typical content and formatting.
+.Pp
+See
+.Sx \&Ev .
+.It Em FILES
+Documents files used.
+It's helpful to document both the file name and a short description of how
+the file is used (created, modified, etc.).
+.Pp
+See
+.Sx \&Pa .
+.It Em EXIT STATUS
+This section documents the
+command exit status for section 1, 6, and 8 utilities.
+Historically, this information was described in
+.Em DIAGNOSTICS ,
+a practise that is now discouraged.
+.Pp
+See
+.Sx \&Ex .
+.It Em EXAMPLES
+Example usages.
+This often contains snippets of well-formed, well-tested invocations.
+Make sure that examples work properly!
+.It Em DIAGNOSTICS
+Documents error messages.
+In section 4 and 9 manuals, these are usually messages printed by the
+kernel to the console and to the kernel log.
+In section 1, 6, 7, and 8, these are usually messages printed by
+userland programs to the standard error output.
+.Pp
+Historically, this section was used in place of
+.Em EXIT STATUS
+for manuals in sections 1, 6, and 8; however, this practise is
+discouraged.
+.Pp
+See
+.Sx \&Bl
+.Fl diag .
+.It Em ERRORS
+Documents
+.Xr errno 2
+settings in sections 2, 3, 4, and 9.
+.Pp
+See
+.Sx \&Er .
+.It Em SEE ALSO
+References other manuals with related topics.
+This section should exist for most manuals.
+Cross-references should conventionally be ordered first by section, then
+alphabetically (ignoring case).
+.Pp
+References to other documentation concerning the topic of the manual page,
+for example authoritative books or journal articles, may also be
+provided in this section.
+.Pp
+See
+.Sx \&Rs
+and
+.Sx \&Xr .
+.It Em STANDARDS
+References any standards implemented or used.
+If not adhering to any standards, the
+.Em HISTORY
+section should be used instead.
+.Pp
+See
+.Sx \&St .
+.It Em HISTORY
+A brief history of the subject, including where it was first implemented,
+and when it was ported to or reimplemented for the operating system at hand.
+.It Em AUTHORS
+Credits to the person or persons who wrote the code and/or documentation.
+Authors should generally be noted by both name and email address.
+.Pp
+See
+.Sx \&An .
+.It Em CAVEATS
+Common misuses and misunderstandings should be explained
+in this section.
+.It Em BUGS
+Known bugs, limitations, and work-arounds should be described
+in this section.
+.It Em SECURITY CONSIDERATIONS
+Documents any security precautions that operators should consider.
+.El
+.Sh MACRO OVERVIEW
+This overview is sorted such that macros of similar purpose are listed
+together, to help find the best macro for any given purpose.
+Deprecated macros are not included in the overview, but can be found below
+in the alphabetical
+.Sx MACRO REFERENCE .
+.Ss Document preamble and NAME section macros
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Dd Ta document date: Cm $\&Mdocdate$ | Ar month day , year
+.It Sx \&Dt Ta document title: Ar TITLE section Op Ar arch
+.It Sx \&Os Ta operating system version: Op Ar system Op Ar version
+.It Sx \&Nm Ta document name (one argument)
+.It Sx \&Nd Ta document description (one line)
+.El
+.Ss Sections and cross references
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Sh Ta section header (one line)
+.It Sx \&Ss Ta subsection header (one line)
+.It Sx \&Sx Ta internal cross reference to a section or subsection
+.It Sx \&Xr Ta cross reference to another manual page: Ar name section
+.It Sx \&Pp , \&Lp Ta start a text paragraph (no arguments)
+.El
+.Ss Displays and lists
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Bd , \&Ed Ta display block:
+.Fl Ar type
+.Op Fl offset Ar width
+.Op Fl compact
+.It Sx \&D1 Ta indented display (one line)
+.It Sx \&Dl Ta indented literal display (one line)
+.It Sx \&Ql Ta in-line literal display: Ql text
+.It Sx \&Bl , \&El Ta list block:
+.Fl Ar type
+.Op Fl width Ar val
+.Op Fl offset Ar val
+.Op Fl compact
+.It Sx \&It Ta list item (syntax depends on Fl Ar type )
+.It Sx \&Ta Ta table cell separator in Sx \&Bl Fl column No lists
+.It Sx \&Rs , \&%* , \&Re Ta bibliographic block (references)
+.El
+.Ss Spacing control
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Pf Ta prefix, no following horizontal space (one argument)
+.It Sx \&Ns Ta roman font, no preceding horizontal space (no arguments)
+.It Sx \&Ap Ta apostrophe without surrounding whitespace (no arguments)
+.It Sx \&Sm Ta switch horizontal spacing mode: Op Cm on | off
+.It Sx \&Bk , \&Ek Ta keep block: Fl words
+.El
+.Ss Semantic markup for command line utilities
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Nm Ta start a SYNOPSIS block with the name of a utility
+.It Sx \&Fl Ta command line options (flags) (>=0 arguments)
+.It Sx \&Cm Ta command modifier (>0 arguments)
+.It Sx \&Ar Ta command arguments (>=0 arguments)
+.It Sx \&Op , \&Oo , \&Oc Ta optional syntax elements (enclosure)
+.It Sx \&Ic Ta internal or interactive command (>0 arguments)
+.It Sx \&Ev Ta environmental variable (>0 arguments)
+.It Sx \&Pa Ta file system path (>=0 arguments)
+.El
+.Ss Semantic markup for function libraries
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Lb Ta function library (one argument)
+.It Sx \&In Ta include file (one argument)
+.It Sx \&Fd Ta other preprocessor directive (>0 arguments)
+.It Sx \&Ft Ta function type (>0 arguments)
+.It Sx \&Fo , \&Fc Ta function block: Ar funcname
+.It Sx \&Fn Ta function name:
+.Op Ar functype
+.Ar funcname
+.Oo
+.Op Ar argtype
+.Ar argname
+.Oc
+.It Sx \&Fa Ta function argument (>0 arguments)
+.It Sx \&Vt Ta variable type (>0 arguments)
+.It Sx \&Va Ta variable name (>0 arguments)
+.It Sx \&Dv Ta defined variable or preprocessor constant (>0 arguments)
+.It Sx \&Er Ta error constant (>0 arguments)
+.It Sx \&Ev Ta environmental variable (>0 arguments)
+.El
+.Ss Various semantic markup
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&An Ta author name (>0 arguments)
+.It Sx \&Lk Ta hyperlink: Ar uri Op Ar name
+.It Sx \&Mt Ta Do mailto Dc hyperlink: Ar address
+.It Sx \&Cd Ta kernel configuration declaration (>0 arguments)
+.It Sx \&Ad Ta memory address (>0 arguments)
+.It Sx \&Ms Ta mathematical symbol (>0 arguments)
+.El
+.Ss Physical markup
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Em Ta italic font or underline (emphasis) (>0 arguments)
+.It Sx \&Sy Ta boldface font (symbolic) (>0 arguments)
+.It Sx \&Li Ta typewriter font (literal) (>0 arguments)
+.It Sx \&No Ta return to roman font (normal) (no arguments)
+.It Sx \&Bf , \&Ef Ta font block:
+.Op Fl Ar type | Cm \&Em | \&Li | \&Sy
+.El
+.Ss Physical enclosures
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Dq , \&Do , \&Dc Ta enclose in typographic double quotes: Dq text
+.It Sx \&Qq , \&Qo , \&Qc Ta enclose in typewriter double quotes: Qq text
+.It Sx \&Sq , \&So , \&Sc Ta enclose in single quotes: Sq text
+.It Sx \&Pq , \&Po , \&Pc Ta enclose in parentheses: Pq text
+.It Sx \&Bq , \&Bo , \&Bc Ta enclose in square brackets: Bq text
+.It Sx \&Brq , \&Bro , \&Brc Ta enclose in curly braces: Brq text
+.It Sx \&Aq , \&Ao , \&Ac Ta enclose in angle brackets: Aq text
+.It Sx \&Eo , \&Ec Ta generic enclosure
+.El
+.Ss Text production
+.Bl -column "Brq, Bro, Brc" description
+.It Sx \&Ex Fl std Ta standard command exit values: Op Ar utility ...
+.It Sx \&Rv Fl std Ta standard function return values: Op Ar function ...
+.It Sx \&St Ta reference to a standards document (one argument)
+.It Sx \&At Ta At
+.It Sx \&Bx Ta Bx
+.It Sx \&Bsx Ta Bsx
+.It Sx \&Nx Ta Nx
+.It Sx \&Fx Ta Fx
+.It Sx \&Ox Ta Ox
+.It Sx \&Dx Ta Dx
+.El
+.Sh MACRO REFERENCE
+This section is a canonical reference of all macros, arranged
+alphabetically.
+For the scoping of individual macros, see
+.Sx MACRO SYNTAX .
+.Ss \&%A
+Author name of an
+.Sx \&Rs
+block.
+Multiple authors should each be accorded their own
+.Sx \%%A
+line.
+Author names should be ordered with full or abbreviated forename(s)
+first, then full surname.
+.Ss \&%B
+Book title of an
+.Sx \&Rs
+block.
+This macro may also be used in a non-bibliographic context when
+referring to book titles.
+.Ss \&%C
+Publication city or location of an
+.Sx \&Rs
+block.
+.Ss \&%D
+Publication date of an
+.Sx \&Rs
+block.
+Recommended formats of arguments are
+.Ar month day , year
+or just
+.Ar year .
+.Ss \&%I
+Publisher or issuer name of an
+.Sx \&Rs
+block.
+.Ss \&%J
+Journal name of an
+.Sx \&Rs
+block.
+.Ss \&%N
+Issue number (usually for journals) of an
+.Sx \&Rs
+block.
+.Ss \&%O
+Optional information of an
+.Sx \&Rs
+block.
+.Ss \&%P
+Book or journal page number of an
+.Sx \&Rs
+block.
+.Ss \&%Q
+Institutional author (school, government, etc.) of an
+.Sx \&Rs
+block.
+Multiple institutional authors should each be accorded their own
+.Sx \&%Q
+line.
+.Ss \&%R
+Technical report name of an
+.Sx \&Rs
+block.
+.Ss \&%T
+Article title of an
+.Sx \&Rs
+block.
+This macro may also be used in a non-bibliographical context when
+referring to article titles.
+.Ss \&%U
+URI of reference document.
+.Ss \&%V
+Volume number of an
+.Sx \&Rs
+block.
+.Ss \&Ac
+Close an
+.Sx \&Ao
+block.
+Does not have any tail arguments.
+.Ss \&Ad
+Memory address.
+Do not use this for postal addresses.
+.Pp
+Examples:
+.Dl \&.Ad [0,$]
+.Dl \&.Ad 0x00000000
+.Ss \&An
+Author name.
+Can be used both for the authors of the program, function, or driver
+documented in the manual, or for the authors of the manual itself.
+Requires either the name of an author or one of the following arguments:
+.Pp
+.Bl -tag -width "-nosplitX" -offset indent -compact
+.It Fl split
+Start a new output line before each subsequent invocation of
+.Sx \&An .
+.It Fl nosplit
+The opposite of
+.Fl split .
+.El
+.Pp
+The default is
+.Fl nosplit .
+The effect of selecting either of the
+.Fl split
+modes ends at the beginning of the
+.Em AUTHORS
+section.
+In the
+.Em AUTHORS
+section, the default is
+.Fl nosplit
+for the first author listing and
+.Fl split
+for all other author listings.
+.Pp
+Examples:
+.Dl \&.An -nosplit
+.Dl \&.An Kristaps Dzonsons \&Aq \&Mt kristaps at bsd.lv
+.Ss \&Ao
+Begin a block enclosed by angle brackets.
+Does not have any head arguments.
+.Pp
+Examples:
+.Dl \&.Fl -key= \&Ns \&Ao \&Ar val \&Ac
+.Pp
+See also
+.Sx \&Aq .
+.Ss \&Ap
+Inserts an apostrophe without any surrounding whitespace.
+This is generally used as a grammatical device when referring to the verb
+form of a function.
+.Pp
+Examples:
+.Dl \&.Fn execve \&Ap d
+.Ss \&Aq
+Encloses its arguments in angle brackets.
+.Pp
+Examples:
+.Dl \&.Fl -key= \&Ns \&Aq \&Ar val
+.Pp
+.Em Remarks :
+this macro is often abused for rendering URIs, which should instead use
+.Sx \&Lk
+or
+.Sx \&Mt ,
+or to note pre-processor
+.Dq Li #include
+statements, which should use
+.Sx \&In .
+.Pp
+See also
+.Sx \&Ao .
+.Ss \&Ar
+Command arguments.
+If an argument is not provided, the string
+.Dq file ...\&
+is used as a default.
+.Pp
+Examples:
+.Dl ".Fl o Ar file"
+.Dl ".Ar"
+.Dl ".Ar arg1 , arg2 ."
+.Pp
+The arguments to the
+.Sx \&Ar
+macro are names and placeholders for command arguments;
+for fixed strings to be passed verbatim as arguments, use
+.Sx \&Fl
+or
+.Sx \&Cm .
+.Ss \&At
+Formats an
+.At
+version.
+Accepts one optional argument:
+.Pp
+.Bl -tag -width "v[1-7] | 32vX" -offset indent -compact
+.It Cm v[1-7] | 32v
+A version of
+.At .
+.It Cm III
+.At III .
+.It Cm V | V.[1-4]
+A version of
+.At V .
+.El
+.Pp
+Note that these arguments do not begin with a hyphen.
+.Pp
+Examples:
+.Dl \&.At
+.Dl \&.At III
+.Dl \&.At V.1
+.Pp
+See also
+.Sx \&Bsx ,
+.Sx \&Bx ,
+.Sx \&Dx ,
+.Sx \&Fx ,
+.Sx \&Nx ,
+and
+.Sx \&Ox .
+.Ss \&Bc
+Close a
+.Sx \&Bo
+block.
+Does not have any tail arguments.
+.Ss \&Bd
+Begin a display block.
+Its syntax is as follows:
+.Bd -ragged -offset indent
+.Pf \. Sx \&Bd
+.Fl Ns Ar type
+.Op Fl offset Ar width
+.Op Fl compact
+.Ed
+.Pp
+Display blocks are used to select a different indentation and
+justification than the one used by the surrounding text.
+They may contain both macro lines and text lines.
+By default, a display block is preceded by a vertical space.
+.Pp
+The
+.Ar type
+must be one of the following:
+.Bl -tag -width 13n -offset indent
+.It Fl centered
+Produce one output line from each input line, and center-justify each line.
+Using this display type is not recommended; many
+.Nm
+implementations render it poorly.
+.It Fl filled
+Change the positions of line breaks to fill each line, and left- and
+right-justify the resulting block.
+.It Fl literal
+Produce one output line from each input line,
+and do not justify the block at all.
+Preserve white space as it appears in the input.
+Always use a constant-width font.
+Use this for displaying source code.
+.It Fl ragged
+Change the positions of line breaks to fill each line, and left-justify
+the resulting block.
+.It Fl unfilled
+The same as
+.Fl literal ,
+but using the same font as for normal text, which is a variable width font
+if supported by the output device.
+.El
+.Pp
+The
+.Ar type
+must be provided first.
+Additional arguments may follow:
+.Bl -tag -width 13n -offset indent
+.It Fl offset Ar width
+Indent the display by the
+.Ar width ,
+which may be one of the following:
+.Bl -item
+.It
+One of the pre-defined strings
+.Cm indent ,
+the width of a standard indentation (six constant width characters);
+.Cm indent-two ,
+twice
+.Cm indent ;
+.Cm left ,
+which has no effect;
+.Cm right ,
+which justifies to the right margin; or
+.Cm center ,
+which aligns around an imagined center axis.
+.It
+A macro invocation, which selects a predefined width
+associated with that macro.
+The most popular is the imaginary macro
+.Ar \&Ds ,
+which resolves to
+.Sy 6n .
+.It
+A scaling width as described in
+.Xr roff 7 .
+.It
+An arbitrary string, which indents by the length of this string.
+.El
+.Pp
+When the argument is missing,
+.Fl offset
+is ignored.
+.It Fl compact
+Do not assert vertical space before the display.
+.El
+.Pp
+Examples:
+.Bd -literal -offset indent
+\&.Bd \-literal \-offset indent \-compact
+   Hello       world.
+\&.Ed
+.Ed
+.Pp
+See also
+.Sx \&D1
+and
+.Sx \&Dl .
+.Ss \&Bf
+Change the font mode for a scoped block of text.
+Its syntax is as follows:
+.Bd -ragged -offset indent
+.Pf \. Sx \&Bf
+.Oo
+.Fl emphasis | literal | symbolic |
+.Cm \&Em | \&Li | \&Sy
+.Oc
+.Ed
+.Pp
+The
+.Fl emphasis
+and
+.Cm \&Em
+argument are equivalent, as are
+.Fl symbolic
+and
+.Cm \&Sy ,
+and
+.Fl literal
+and
+.Cm \&Li .
+Without an argument, this macro does nothing.
+The font mode continues until broken by a new font mode in a nested
+scope or
+.Sx \&Ef
+is encountered.
+.Pp
+See also
+.Sx \&Li ,
+.Sx \&Ef ,
+.Sx \&Em ,
+and
+.Sx \&Sy .
+.Ss \&Bk
+For each macro, keep its output together on the same output line,
+until the end of the macro or the end of the input line is reached,
+whichever comes first.
+Line breaks in text lines are unaffected.
+The syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Bk Fl words
+.Pp
+The
+.Fl words
+argument is required; additional arguments are ignored.
+.Pp
+The following example will not break within each
+.Sx \&Op
+macro line:
+.Bd -literal -offset indent
+\&.Bk \-words
+\&.Op Fl f Ar flags
+\&.Op Fl o Ar output
+\&.Ek
+.Ed
+.Pp
+Be careful in using over-long lines within a keep block!
+Doing so will clobber the right margin.
+.Ss \&Bl
+Begin a list.
+Lists consist of items specified using the
+.Sx \&It
+macro, containing a head or a body or both.
+The list syntax is as follows:
+.Bd -ragged -offset indent
+.Pf \. Sx \&Bl
+.Fl Ns Ar type
+.Op Fl width Ar val
+.Op Fl offset Ar val
+.Op Fl compact
+.Op HEAD ...
+.Ed
+.Pp
+The list
+.Ar type
+is mandatory and must be specified first.
+The
+.Fl width
+and
+.Fl offset
+arguments accept macro names as described for
+.Sx \&Bd
+.Fl offset ,
+scaling widths as described in
+.Xr roff 7 ,
+or use the length of the given string.
+The
+.Fl offset
+is a global indentation for the whole list, affecting both item heads
+and bodies.
+For those list types supporting it, the
+.Fl width
+argument requests an additional indentation of item bodies,
+to be added to the
+.Fl offset .
+Unless the
+.Fl compact
+argument is specified, list entries are separated by vertical space.
+.Pp
+A list must specify one of the following list types:
+.Bl -tag -width 12n -offset indent
+.It Fl bullet
+No item heads can be specified, but a bullet will be printed at the head
+of each item.
+Item bodies start on the same output line as the bullet
+and are indented according to the
+.Fl width
+argument.
+.It Fl column
+A columnated list.
+The
+.Fl width
+argument has no effect; instead, the string length of each argument
+specifies the width of one column.
+If the first line of the body of a
+.Fl column
+list is not an
+.Sx \&It
+macro line,
+.Sx \&It
+contexts spanning one input line each are implied until an
+.Sx \&It
+macro line is encountered, at which point items start being interpreted as
+described in the
+.Sx \&It
+documentation.
+.It Fl dash
+Like
+.Fl bullet ,
+except that dashes are used in place of bullets.
+.It Fl diag
+Like
+.Fl inset ,
+except that item heads are not parsed for macro invocations.
+Most often used in the
+.Em DIAGNOSTICS
+section with error constants in the item heads.
+.It Fl enum
+A numbered list.
+No item heads can be specified.
+Formatted like
+.Fl bullet ,
+except that cardinal numbers are used in place of bullets,
+starting at 1.
+.It Fl hang
+Like
+.Fl tag ,
+except that the first lines of item bodies are not indented, but follow
+the item heads like in
+.Fl inset
+lists.
+.It Fl hyphen
+Synonym for
+.Fl dash .
+.It Fl inset
+Item bodies follow items heads on the same line, using normal inter-word
+spacing.
+Bodies are not indented, and the
+.Fl width
+argument is ignored.
+.It Fl item
+No item heads can be specified, and none are printed.
+Bodies are not indented, and the
+.Fl width
+argument is ignored.
+.It Fl ohang
+Item bodies start on the line following item heads and are not indented.
+The
+.Fl width
+argument is ignored.
+.It Fl tag
+Item bodies are indented according to the
+.Fl width
+argument.
+When an item head fits inside the indentation, the item body follows
+this head on the same output line.
+Otherwise, the body starts on the output line following the head.
+.El
+.Pp
+Lists may be nested within lists and displays.
+Nesting of
+.Fl column
+and
+.Fl enum
+lists may not be portable.
+.Pp
+See also
+.Sx \&El
+and
+.Sx \&It .
+.Ss \&Bo
+Begin a block enclosed by square brackets.
+Does not have any head arguments.
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+\&.Bo 1 ,
+\&.Dv BUFSIZ \&Bc
+.Ed
+.Pp
+See also
+.Sx \&Bq .
+.Ss \&Bq
+Encloses its arguments in square brackets.
+.Pp
+Examples:
+.Dl \&.Bq 1 , \&Dv BUFSIZ
+.Pp
+.Em Remarks :
+this macro is sometimes abused to emulate optional arguments for
+commands; the correct macros to use for this purpose are
+.Sx \&Op ,
+.Sx \&Oo ,
+and
+.Sx \&Oc .
+.Pp
+See also
+.Sx \&Bo .
+.Ss \&Brc
+Close a
+.Sx \&Bro
+block.
+Does not have any tail arguments.
+.Ss \&Bro
+Begin a block enclosed by curly braces.
+Does not have any head arguments.
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+\&.Bro 1 , ... ,
+\&.Va n \&Brc
+.Ed
+.Pp
+See also
+.Sx \&Brq .
+.Ss \&Brq
+Encloses its arguments in curly braces.
+.Pp
+Examples:
+.Dl \&.Brq 1 , ... , \&Va n
+.Pp
+See also
+.Sx \&Bro .
+.Ss \&Bsx
+Format the
+.Bsx
+version provided as an argument, or a default value if
+no argument is provided.
+.Pp
+Examples:
+.Dl \&.Bsx 1.0
+.Dl \&.Bsx
+.Pp
+See also
+.Sx \&At ,
+.Sx \&Bx ,
+.Sx \&Dx ,
+.Sx \&Fx ,
+.Sx \&Nx ,
+and
+.Sx \&Ox .
+.Ss \&Bt
+Supported only for compatibility, do not use this in new manuals.
+Prints
+.Dq is currently in beta test.
+.Ss \&Bx
+Format the
+.Bx
+version provided as an argument, or a default value if no
+argument is provided.
+.Pp
+Examples:
+.Dl \&.Bx 4.3 Tahoe
+.Dl \&.Bx 4.4
+.Dl \&.Bx
+.Pp
+See also
+.Sx \&At ,
+.Sx \&Bsx ,
+.Sx \&Dx ,
+.Sx \&Fx ,
+.Sx \&Nx ,
+and
+.Sx \&Ox .
+.Ss \&Cd
+Kernel configuration declaration.
+This denotes strings accepted by
+.Xr config 8 .
+It is most often used in section 4 manual pages.
+.Pp
+Examples:
+.Dl \&.Cd device le0 at scode?
+.Pp
+.Em Remarks :
+this macro is commonly abused by using quoted literals to retain
+whitespace and align consecutive
+.Sx \&Cd
+declarations.
+This practise is discouraged.
+.Ss \&Cm
+Command modifiers.
+Typically used for fixed strings passed as arguments, unless
+.Sx \&Fl
+is more appropriate.
+Also useful when specifying configuration options or keys.
+.Pp
+Examples:
+.Dl ".Nm mt Fl f Ar device Cm rewind"
+.Dl ".Nm ps Fl o Cm pid , Ns Cm command"
+.Dl ".Nm dd Cm if= Ns Ar file1 Cm of= Ns Ar file2"
+.Dl ".Cm IdentityFile Pa ~/.ssh/id_rsa"
+.Dl ".Cm LogLevel Dv DEBUG"
+.Ss \&D1
+One-line indented display.
+This is formatted by the default rules and is useful for simple indented
+statements.
+It is followed by a newline.
+.Pp
+Examples:
+.Dl \&.D1 \&Fl abcdefgh
+.Pp
+See also
+.Sx \&Bd
+and
+.Sx \&Dl .
+.Ss \&Db
+This macro is obsolete.
+No replacement is needed.
+It is ignored by
+.Xr mandoc 1
+and groff including its arguments.
+It was formerly used to toggle a debugging mode.
+.Ss \&Dc
+Close a
+.Sx \&Do
+block.
+Does not have any tail arguments.
+.Ss \&Dd
+Document date for display in the page footer.
+This is the mandatory first macro of any
+.Nm
+manual.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Dd Ar month day , year
+.Pp
+The
+.Ar month
+is the full English month name, the
+.Ar day
+is an optionally zero-padded numeral, and the
+.Ar year
+is the full four-digit year.
+.Pp
+Other arguments are not portable; the
+.Xr mandoc 1
+utility handles them as follows:
+.Bl -dash -offset 3n -compact
+.It
+To have the date automatically filled in by the
+.Ox
+version of
+.Xr cvs 1 ,
+the special string
+.Dq $\&Mdocdate$
+can be given as an argument.
+.It
+The traditional, purely numeric
+.Xr man 7
+format
+.Ar year Ns \(en Ns Ar month Ns \(en Ns Ar day
+is accepted, too.
+.It
+If a date string cannot be parsed, it is used verbatim.
+.It
+If no date string is given, the current date is used.
+.El
+.Pp
+Examples:
+.Dl \&.Dd $\&Mdocdate$
+.Dl \&.Dd $\&Mdocdate: July 21 2007$
+.Dl \&.Dd July 21, 2007
+.Pp
+See also
+.Sx \&Dt
+and
+.Sx \&Os .
+.Ss \&Dl
+One-line indented display.
+This is formatted as literal text and is useful for commands and
+invocations.
+It is followed by a newline.
+.Pp
+Examples:
+.Dl \&.Dl % mandoc mdoc.7 \e(ba less
+.Pp
+See also
+.Sx \&Ql ,
+.Sx \&Bd
+.Fl literal ,
+and
+.Sx \&D1 .
+.Ss \&Do
+Begin a block enclosed by double quotes.
+Does not have any head arguments.
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+\&.Do
+April is the cruellest month
+\&.Dc
+\e(em T.S. Eliot
+.Ed
+.Pp
+See also
+.Sx \&Dq .
+.Ss \&Dq
+Encloses its arguments in
+.Dq typographic
+double-quotes.
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+\&.Dq April is the cruellest month
+\e(em T.S. Eliot
+.Ed
+.Pp
+See also
+.Sx \&Qq ,
+.Sx \&Sq ,
+and
+.Sx \&Do .
+.Ss \&Dt
+Document title for display in the page header.
+This is the mandatory second macro of any
+.Nm
+file.
+Its syntax is as follows:
+.Bd -ragged -offset indent
+.Pf \. Sx \&Dt
+.Ar TITLE
+.Ar section
+.Op Ar arch
+.Ed
+.Pp
+Its arguments are as follows:
+.Bl -tag -width section -offset 2n
+.It Ar TITLE
+The document's title (name), defaulting to
+.Dq UNTITLED
+if unspecified.
+To achieve a uniform appearance of page header lines,
+it should by convention be all caps.
+.It Ar section
+The manual section.
+This may be one of
+.Cm 1
+.Pq General Commands ,
+.Cm 2
+.Pq System Calls ,
+.Cm 3
+.Pq Library Functions ,
+.Cm 3p
+.Pq Perl Library ,
+.Cm 4
+.Pq Device Drivers ,
+.Cm 5
+.Pq File Formats ,
+.Cm 6
+.Pq Games ,
+.Cm 7
+.Pq Miscellaneous Information ,
+.Cm 8
+.Pq System Manager's Manual ,
+or
+.Cm 9
+.Pq Kernel Developer's Manual .
+It should correspond to the manual's filename suffix and defaults to
+the empty string if unspecified.
+.It Ar arch
+This specifies the machine architecture a manual page applies to,
+where relevant, for example
+.Cm alpha ,
+.Cm amd64 ,
+.Cm i386 ,
+or
+.Cm sparc64 .
+The list of valid architectures varies by operating system.
+.El
+.Pp
+Examples:
+.Dl \&.Dt FOO 1
+.Dl \&.Dt FOO 9 i386
+.Pp
+See also
+.Sx \&Dd
+and
+.Sx \&Os .
+.Ss \&Dv
+Defined variables such as preprocessor constants, constant symbols,
+enumeration values, and so on.
+.Pp
+Examples:
+.Dl \&.Dv NULL
+.Dl \&.Dv BUFSIZ
+.Dl \&.Dv STDOUT_FILENO
+.Pp
+See also
+.Sx \&Er
+and
+.Sx \&Ev
+for special-purpose constants,
+.Sx \&Va
+for variable symbols, and
+.Sx \&Fd
+for listing preprocessor variable definitions in the
+.Em SYNOPSIS .
+.Ss \&Dx
+Format the
+.Dx
+version provided as an argument, or a default
+value if no argument is provided.
+.Pp
+Examples:
+.Dl \&.Dx 2.4.1
+.Dl \&.Dx
+.Pp
+See also
+.Sx \&At ,
+.Sx \&Bsx ,
+.Sx \&Bx ,
+.Sx \&Fx ,
+.Sx \&Nx ,
+and
+.Sx \&Ox .
+.Ss \&Ec
+Close a scope started by
+.Sx \&Eo .
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Ec Op Ar TERM
+.Pp
+The
+.Ar TERM
+argument is used as the enclosure tail, for example, specifying \e(rq
+will emulate
+.Sx \&Dc .
+.Ss \&Ed
+End a display context started by
+.Sx \&Bd .
+.Ss \&Ef
+End a font mode context started by
+.Sx \&Bf .
+.Ss \&Ek
+End a keep context started by
+.Sx \&Bk .
+.Ss \&El
+End a list context started by
+.Sx \&Bl .
+.Pp
+See also
+.Sx \&Bl
+and
+.Sx \&It .
+.Ss \&Em
+Request an italic font.
+If the output device does not provide that, underline.
+.Pp
+This is most often used for stress emphasis (not to be confused with
+importance, see
+.Sx \&Sy ) .
+In the rare cases where none of the semantic markup macros fit,
+it can also be used for technical terms and placeholders, except
+that for syntax elements,
+.Sx \&Sy
+and
+.Sx \&Ar
+are preferred, respectively.
+.Pp
+Examples:
+.Bd -literal -compact -offset indent
+Selected lines are those
+\&.Em not
+matching any of the specified patterns.
+Some of the functions use a
+\&.Em hold space
+to save the pattern space for subsequent retrieval.
+.Ed
+.Pp
+See also
+.Sx \&Bf ,
+.Sx \&Li ,
+.Sx \&No ,
+and
+.Sx \&Sy .
+.Ss \&En
+This macro is obsolete.
+Use
+.Sx \&Eo
+or any of the other enclosure macros.
+.Pp
+It encloses its argument in the delimiters specified by the last
+.Sx \&Es
+macro.
+.Ss \&Eo
+An arbitrary enclosure.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Eo Op Ar TERM
+.Pp
+The
+.Ar TERM
+argument is used as the enclosure head, for example, specifying \e(lq
+will emulate
+.Sx \&Do .
+.Ss \&Er
+Error constants for definitions of the
+.Va errno
+libc global variable.
+This is most often used in section 2 and 3 manual pages.
+.Pp
+Examples:
+.Dl \&.Er EPERM
+.Dl \&.Er ENOENT
+.Pp
+See also
+.Sx \&Dv
+for general constants.
+.Ss \&Es
+This macro is obsolete.
+Use
+.Sx \&Eo
+or any of the other enclosure macros.
+.Pp
+It takes two arguments, defining the delimiters to be used by subsequent
+.Sx \&En
+macros.
+.Ss \&Ev
+Environmental variables such as those specified in
+.Xr environ 7 .
+.Pp
+Examples:
+.Dl \&.Ev DISPLAY
+.Dl \&.Ev PATH
+.Pp
+See also
+.Sx \&Dv
+for general constants.
+.Ss \&Ex
+Insert a standard sentence regarding command exit values of 0 on success
+and >0 on failure.
+This is most often used in section 1, 6, and 8 manual pages.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Ex Fl std Op Ar utility ...
+.Pp
+If
+.Ar utility
+is not specified, the document's name set by
+.Sx \&Nm
+is used.
+Multiple
+.Ar utility
+arguments are treated as separate utilities.
+.Pp
+See also
+.Sx \&Rv .
+.Ss \&Fa
+Function argument or parameter.
+Its syntax is as follows:
+.Bd -ragged -offset indent
+.Pf \. Sx \&Fa
+.Qo
+.Op Ar argtype
+.Op Ar argname
+.Qc Ar \&...
+.Ed
+.Pp
+Each argument may be a name and a type (recommended for the
+.Em SYNOPSIS
+section), a name alone (for function invocations),
+or a type alone (for function prototypes).
+If both a type and a name are given or if the type consists of multiple
+words, all words belonging to the same function argument have to be
+given in a single argument to the
+.Sx \&Fa
+macro.
+.Pp
+This macro is also used to specify the field name of a structure.
+.Pp
+Most often, the
+.Sx \&Fa
+macro is used in the
+.Em SYNOPSIS
+within
+.Sx \&Fo
+blocks when documenting multi-line function prototypes.
+If invoked with multiple arguments, the arguments are separated by a
+comma.
+Furthermore, if the following macro is another
+.Sx \&Fa ,
+the last argument will also have a trailing comma.
+.Pp
+Examples:
+.Dl \&.Fa \(dqconst char *p\(dq
+.Dl \&.Fa \(dqint a\(dq \(dqint b\(dq \(dqint c\(dq
+.Dl \&.Fa \(dqchar *\(dq size_t
+.Pp
+See also
+.Sx \&Fo .
+.Ss \&Fc
+End a function context started by
+.Sx \&Fo .
+.Ss \&Fd
+Preprocessor directive, in particular for listing it in the
+.Em SYNOPSIS .
+Historically, it was also used to document include files.
+The latter usage has been deprecated in favour of
+.Sx \&In .
+.Pp
+Its syntax is as follows:
+.Bd -ragged -offset indent
+.Pf \. Sx \&Fd
+.Li # Ns Ar directive
+.Op Ar argument ...
+.Ed
+.Pp
+Examples:
+.Dl \&.Fd #define sa_handler __sigaction_u.__sa_handler
+.Dl \&.Fd #define SIO_MAXNFDS
+.Dl \&.Fd #ifdef FS_DEBUG
+.Dl \&.Ft void
+.Dl \&.Fn dbg_open \(dqconst char *\(dq
+.Dl \&.Fd #endif
+.Pp
+See also
+.Sx MANUAL STRUCTURE ,
+.Sx \&In ,
+and
+.Sx \&Dv .
+.Ss \&Fl
+Command-line flag or option.
+Used when listing arguments to command-line utilities.
+Prints a fixed-width hyphen
+.Sq \-
+directly followed by each argument.
+If no arguments are provided, a hyphen is printed followed by a space.
+If the argument is a macro, a hyphen is prefixed to the subsequent macro
+output.
+.Pp
+Examples:
+.Dl ".Fl R Op Fl H | L | P"
+.Dl ".Op Fl 1AaCcdFfgHhikLlmnopqRrSsTtux"
+.Dl ".Fl type Cm d Fl name Pa CVS"
+.Dl ".Fl Ar signal_number"
+.Dl ".Fl o Fl"
+.Pp
+See also
+.Sx \&Cm .
+.Ss \&Fn
+A function name.
+Its syntax is as follows:
+.Bd -ragged -offset indent
+.Pf . Sx \&Fn
+.Op Ar functype
+.Ar funcname
+.Op Oo Ar argtype Oc Ar argname
+.Ed
+.Pp
+Function arguments are surrounded in parenthesis and
+are delimited by commas.
+If no arguments are specified, blank parenthesis are output.
+In the
+.Em SYNOPSIS
+section, this macro starts a new output line,
+and a blank line is automatically inserted between function definitions.
+.Pp
+Examples:
+.Dl \&.Fn \(dqint funcname\(dq \(dqint arg0\(dq \(dqint arg1\(dq
+.Dl \&.Fn funcname \(dqint arg0\(dq
+.Dl \&.Fn funcname arg0
+.Pp
+.Bd -literal -offset indent -compact
+\&.Ft functype
+\&.Fn funcname
+.Ed
+.Pp
+When referring to a function documented in another manual page, use
+.Sx \&Xr
+instead.
+See also
+.Sx MANUAL STRUCTURE ,
+.Sx \&Fo ,
+and
+.Sx \&Ft .
+.Ss \&Fo
+Begin a function block.
+This is a multi-line version of
+.Sx \&Fn .
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Fo Ar funcname
+.Pp
+Invocations usually occur in the following context:
+.Bd -ragged -offset indent
+.Pf \. Sx \&Ft Ar functype
+.br
+.Pf \. Sx \&Fo Ar funcname
+.br
+.Pf \. Sx \&Fa Qq Ar argtype Ar argname
+.br
+\&.\.\.
+.br
+.Pf \. Sx \&Fc
+.Ed
+.Pp
+A
+.Sx \&Fo
+scope is closed by
+.Sx \&Fc .
+.Pp
+See also
+.Sx MANUAL STRUCTURE ,
+.Sx \&Fa ,
+.Sx \&Fc ,
+and
+.Sx \&Ft .
+.Ss \&Fr
+This macro is obsolete.
+No replacement markup is needed.
+.Pp
+It was used to show numerical function return values in an italic font.
+.Ss \&Ft
+A function type.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Ft Ar functype
+.Pp
+In the
+.Em SYNOPSIS
+section, a new output line is started after this macro.
+.Pp
+Examples:
+.Dl \&.Ft int
+.Bd -literal -offset indent -compact
+\&.Ft functype
+\&.Fn funcname
+.Ed
+.Pp
+See also
+.Sx MANUAL STRUCTURE ,
+.Sx \&Fn ,
+and
+.Sx \&Fo .
+.Ss \&Fx
+Format the
+.Fx
+version provided as an argument, or a default value
+if no argument is provided.
+.Pp
+Examples:
+.Dl \&.Fx 7.1
+.Dl \&.Fx
+.Pp
+See also
+.Sx \&At ,
+.Sx \&Bsx ,
+.Sx \&Bx ,
+.Sx \&Dx ,
+.Sx \&Nx ,
+and
+.Sx \&Ox .
+.Ss \&Hf
+This macro is not implemented in
+.Xr mandoc 1 .
+.Pp
+It was used to include the contents of a (header) file literally.
+The syntax was:
+.Pp
+.Dl Pf . Sx \&Hf Ar filename
+.Ss \&Ic
+Designate an internal or interactive command.
+This is similar to
+.Sx \&Cm
+but used for instructions rather than values.
+.Pp
+Examples:
+.Dl \&.Ic :wq
+.Dl \&.Ic hash
+.Dl \&.Ic alias
+.Pp
+Note that using
+.Sx \&Bd Fl literal
+or
+.Sx \&D1
+is preferred for displaying code; the
+.Sx \&Ic
+macro is used when referring to specific instructions.
+.Ss \&In
+The name of an include file.
+This macro is most often used in section 2, 3, and 9 manual pages.
+.Pp
+When invoked as the first macro on an input line in the
+.Em SYNOPSIS
+section, the argument is displayed in angle brackets
+and preceded by
+.Qq #include ,
+and a blank line is inserted in front if there is a preceding
+function declaration.
+In other sections, it only encloses its argument in angle brackets
+and causes no line break.
+.Pp
+Examples:
+.Dl \&.In sys/types.h
+.Pp
+See also
+.Sx MANUAL STRUCTURE .
+.Ss \&It
+A list item.
+The syntax of this macro depends on the list type.
+.Pp
+Lists
+of type
+.Fl hang ,
+.Fl ohang ,
+.Fl inset ,
+and
+.Fl diag
+have the following syntax:
+.Pp
+.D1 Pf \. Sx \&It Ar args
+.Pp
+Lists of type
+.Fl bullet ,
+.Fl dash ,
+.Fl enum ,
+.Fl hyphen
+and
+.Fl item
+have the following syntax:
+.Pp
+.D1 Pf \. Sx \&It
+.Pp
+with subsequent lines interpreted within the scope of the
+.Sx \&It
+until either a closing
+.Sx \&El
+or another
+.Sx \&It .
+.Pp
+The
+.Fl tag
+list has the following syntax:
+.Pp
+.D1 Pf \. Sx \&It Op Cm args
+.Pp
+Subsequent lines are interpreted as with
+.Fl bullet
+and family.
+The line arguments correspond to the list's left-hand side; body
+arguments correspond to the list's contents.
+.Pp
+The
+.Fl column
+list is the most complicated.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&It Ar cell Op Sx \&Ta Ar cell ...
+.D1 Pf \. Sx \&It Ar cell Op <TAB> Ar cell ...
+.Pp
+The arguments consist of one or more lines of text and macros
+representing a complete table line.
+Cells within the line are delimited by the special
+.Sx \&Ta
+block macro or by literal tab characters.
+.Pp
+Using literal tabs is strongly discouraged because they are very
+hard to use correctly and
+.Nm
+code using them is very hard to read.
+In particular, a blank character is syntactically significant
+before and after the literal tab character.
+If a word precedes or follows the tab without an intervening blank,
+that word is never interpreted as a macro call, but always output
+literally.
+.Pp
+The tab cell delimiter may only be used within the
+.Sx \&It
+line itself; on following lines, only the
+.Sx \&Ta
+macro can be used to delimit cells, and portability requires that
+.Sx \&Ta
+is called by other macros: some parsers do not recognize it when
+it appears as the first macro on a line.
+.Pp
+Note that quoted strings may span tab-delimited cells on an
+.Sx \&It
+line.
+For example,
+.Pp
+.Dl .It \(dqcol1 ,\& <TAB> col2 ,\(dq \&;
+.Pp
+will preserve the whitespace before both commas,
+but not the whitespace before the semicolon.
+.Pp
+See also
+.Sx \&Bl .
+.Ss \&Lb
+Specify a library.
+The syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Lb Ar library
+.Pp
+The
+.Ar library
+parameter may be a system library, such as
+.Cm libz
+or
+.Cm libpam ,
+in which case a small library description is printed next to the linker
+invocation; or a custom library, in which case the library name is
+printed in quotes.
+This is most commonly used in the
+.Em SYNOPSIS
+section as described in
+.Sx MANUAL STRUCTURE .
+.Pp
+Examples:
+.Dl \&.Lb libz
+.Dl \&.Lb libmandoc
+.Ss \&Li
+Denotes text that should be in a
+.Li literal
+font mode.
+Note that this is a presentation term and should not be used for
+stylistically decorating technical terms.
+.Pp
+On terminal output devices, this is often indistinguishable from
+normal text.
+.Pp
+See also
+.Sx \&Bf ,
+.Sx \&Em ,
+.Sx \&No ,
+and
+.Sx \&Sy .
+.Ss \&Lk
+Format a hyperlink.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Lk Ar uri Op Ar name
+.Pp
+Examples:
+.Dl \&.Lk http://bsd.lv \(dqThe BSD.lv Project\(dq
+.Dl \&.Lk http://bsd.lv
+.Pp
+See also
+.Sx \&Mt .
+.Ss \&Lp
+Synonym for
+.Sx \&Pp .
+.Ss \&Ms
+Display a mathematical symbol.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Ms Ar symbol
+.Pp
+Examples:
+.Dl \&.Ms sigma
+.Dl \&.Ms aleph
+.Ss \&Mt
+Format a
+.Dq mailto:
+hyperlink.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Mt Ar address
+.Pp
+Examples:
+.Dl \&.Mt discuss at manpages.bsd.lv
+.Dl \&.An Kristaps Dzonsons \&Aq \&Mt kristaps at bsd.lv
+.Ss \&Nd
+A one line description of the manual's content.
+This is the mandatory last macro of the
+.Em NAME
+section and not appropriate for other sections.
+.Pp
+Examples:
+.Dl Pf . Sx \&Nd mdoc language reference
+.Dl Pf . Sx \&Nd format and display UNIX manuals
+.Pp
+The
+.Sx \&Nd
+macro technically accepts child macros and terminates with a subsequent
+.Sx \&Sh
+invocation.
+Do not assume this behaviour: some
+.Xr whatis 1
+database generators are not smart enough to parse more than the line
+arguments and will display macros verbatim.
+.Pp
+See also
+.Sx \&Nm .
+.Ss \&Nm
+The name of the manual page, or \(em in particular in section 1, 6,
+and 8 pages \(em of an additional command or feature documented in
+the manual page.
+When first invoked, the
+.Sx \&Nm
+macro expects a single argument, the name of the manual page.
+Usually, the first invocation happens in the
+.Em NAME
+section of the page.
+The specified name will be remembered and used whenever the macro is
+called again without arguments later in the page.
+The
+.Sx \&Nm
+macro uses
+.Sx Block full-implicit
+semantics when invoked as the first macro on an input line in the
+.Em SYNOPSIS
+section; otherwise, it uses ordinary
+.Sx In-line
+semantics.
+.Pp
+Examples:
+.Bd -literal -offset indent
+\&.Sh SYNOPSIS
+\&.Nm cat
+\&.Op Fl benstuv
+\&.Op Ar
+.Ed
+.Pp
+In the
+.Em SYNOPSIS
+of section 2, 3 and 9 manual pages, use the
+.Sx \&Fn
+macro rather than
+.Sx \&Nm
+to mark up the name of the manual page.
+.Ss \&No
+Normal text.
+Closes the scope of any preceding in-line macro.
+When used after physical formatting macros like
+.Sx \&Em
+or
+.Sx \&Sy ,
+switches back to the standard font face and weight.
+Can also be used to embed plain text strings in macro lines
+using semantic annotation macros.
+.Pp
+Examples:
+.Dl ".Em italic , Sy bold , No and roman"
+.Pp
+.Bd -literal -offset indent -compact
+\&.Sm off
+\&.Cm :C No / Ar pattern No / Ar replacement No /
+\&.Sm on
+.Ed
+.Pp
+See also
+.Sx \&Em ,
+.Sx \&Li ,
+and
+.Sx \&Sy .
+.Ss \&Ns
+Suppress a space between the output of the preceding macro
+and the following text or macro.
+Following invocation, input is interpreted as normal text
+just like after an
+.Sx \&No
+macro.
+.Pp
+This has no effect when invoked at the start of a macro line.
+.Pp
+Examples:
+.Dl ".Ar name Ns = Ns Ar value"
+.Dl ".Cm :M Ns Ar pattern"
+.Dl ".Fl o Ns Ar output"
+.Pp
+See also
+.Sx \&No
+and
+.Sx \&Sm .
+.Ss \&Nx
+Format the
+.Nx
+version provided as an argument, or a default value if
+no argument is provided.
+.Pp
+Examples:
+.Dl \&.Nx 5.01
+.Dl \&.Nx
+.Pp
+See also
+.Sx \&At ,
+.Sx \&Bsx ,
+.Sx \&Bx ,
+.Sx \&Dx ,
+.Sx \&Fx ,
+and
+.Sx \&Ox .
+.Ss \&Oc
+Close multi-line
+.Sx \&Oo
+context.
+.Ss \&Oo
+Multi-line version of
+.Sx \&Op .
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+\&.Oo
+\&.Op Fl flag Ns Ar value
+\&.Oc
+.Ed
+.Ss \&Op
+Optional part of a command line.
+Prints the argument(s) in brackets.
+This is most often used in the
+.Em SYNOPSIS
+section of section 1 and 8 manual pages.
+.Pp
+Examples:
+.Dl \&.Op \&Fl a \&Ar b
+.Dl \&.Op \&Ar a | b
+.Pp
+See also
+.Sx \&Oo .
+.Ss \&Os
+Operating system version for display in the page footer.
+This is the mandatory third macro of
+any
+.Nm
+file.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Os Op Ar system Op Ar version
+.Pp
+The optional
+.Ar system
+parameter specifies the relevant operating system or environment.
+It is suggested to leave it unspecified, in which case
+.Xr mandoc 1
+uses its
+.Fl Ios
+argument or, if that isn't specified either,
+.Fa sysname
+and
+.Fa release
+as returned by
+.Xr uname 3 .
+.Pp
+Examples:
+.Dl \&.Os
+.Dl \&.Os KTH/CSC/TCS
+.Dl \&.Os BSD 4.3
+.Pp
+See also
+.Sx \&Dd
+and
+.Sx \&Dt .
+.Ss \&Ot
+This macro is obsolete.
+Use
+.Sx \&Ft
+instead; with
+.Xr mandoc 1 ,
+both have the same effect.
+.Pp
+Historical
+.Nm
+packages described it as
+.Dq "old function type (FORTRAN)" .
+.Ss \&Ox
+Format the
+.Ox
+version provided as an argument, or a default value
+if no argument is provided.
+.Pp
+Examples:
+.Dl \&.Ox 4.5
+.Dl \&.Ox
+.Pp
+See also
+.Sx \&At ,
+.Sx \&Bsx ,
+.Sx \&Bx ,
+.Sx \&Dx ,
+.Sx \&Fx ,
+and
+.Sx \&Nx .
+.Ss \&Pa
+An absolute or relative file system path, or a file or directory name.
+If an argument is not provided, the character
+.Sq \(ti
+is used as a default.
+.Pp
+Examples:
+.Dl \&.Pa /usr/bin/mandoc
+.Dl \&.Pa /usr/share/man/man7/mdoc.7
+.Pp
+See also
+.Sx \&Lk .
+.Ss \&Pc
+Close parenthesised context opened by
+.Sx \&Po .
+.Ss \&Pf
+Removes the space between its argument and the following macro.
+Its syntax is as follows:
+.Pp
+.D1 .Pf Ar prefix macro arguments ...
+.Pp
+This is equivalent to:
+.Pp
+.D1 .No \e& Ns Ar prefix No \&Ns Ar macro arguments ...
+.Pp
+The
+.Ar prefix
+argument is not parsed for macro names or delimiters,
+but used verbatim as if it were escaped.
+.Pp
+Examples:
+.Dl ".Pf $ Ar variable_name"
+.Dl ".Pf . Ar macro_name"
+.Dl ".Pf 0x Ar hex_digits"
+.Pp
+See also
+.Sx \&Ns
+and
+.Sx \&Sm .
+.Ss \&Po
+Multi-line version of
+.Sx \&Pq .
+.Ss \&Pp
+Break a paragraph.
+This will assert vertical space between prior and subsequent macros
+and/or text.
+.Pp
+Paragraph breaks are not needed before or after
+.Sx \&Sh
+or
+.Sx \&Ss
+macros or before displays
+.Pq Sx \&Bd
+or lists
+.Pq Sx \&Bl
+unless the
+.Fl compact
+flag is given.
+.Ss \&Pq
+Parenthesised enclosure.
+.Pp
+See also
+.Sx \&Po .
+.Ss \&Qc
+Close quoted context opened by
+.Sx \&Qo .
+.Ss \&Ql
+In-line literal display.
+This can for example be used for complete command invocations and
+for multi-word code fragments when more specific markup is not
+appropriate and an indented display is not desired.
+While
+.Xr mandoc 1
+always encloses the arguments in single quotes, other formatters
+usually omit the quotes on non-terminal output devices when the
+arguments have three or more characters.
+.Pp
+See also
+.Sx \&Dl
+and
+.Sx \&Bd
+.Fl literal .
+.Ss \&Qo
+Multi-line version of
+.Sx \&Qq .
+.Ss \&Qq
+Encloses its arguments in
+.Qq typewriter
+double-quotes.
+Consider using
+.Sx \&Dq .
+.Pp
+See also
+.Sx \&Dq ,
+.Sx \&Sq ,
+and
+.Sx \&Qo .
+.Ss \&Re
+Close an
+.Sx \&Rs
+block.
+Does not have any tail arguments.
+.Ss \&Rs
+Begin a bibliographic
+.Pq Dq reference
+block.
+Does not have any head arguments.
+The block macro may only contain
+.Sx \&%A ,
+.Sx \&%B ,
+.Sx \&%C ,
+.Sx \&%D ,
+.Sx \&%I ,
+.Sx \&%J ,
+.Sx \&%N ,
+.Sx \&%O ,
+.Sx \&%P ,
+.Sx \&%Q ,
+.Sx \&%R ,
+.Sx \&%T ,
+.Sx \&%U ,
+and
+.Sx \&%V
+child macros (at least one must be specified).
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+\&.Rs
+\&.%A J. E. Hopcroft
+\&.%A J. D. Ullman
+\&.%B Introduction to Automata Theory, Languages, and Computation
+\&.%I Addison-Wesley
+\&.%C Reading, Massachusetts
+\&.%D 1979
+\&.Re
+.Ed
+.Pp
+If an
+.Sx \&Rs
+block is used within a SEE ALSO section, a vertical space is asserted
+before the rendered output, else the block continues on the current
+line.
+.Ss \&Rv
+Insert a standard sentence regarding a function call's return value of 0
+on success and \-1 on error, with the
+.Va errno
+libc global variable set on error.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Rv Fl std Op Ar function ...
+.Pp
+If
+.Ar function
+is not specified, the document's name set by
+.Sx \&Nm
+is used.
+Multiple
+.Ar function
+arguments are treated as separate functions.
+.Pp
+See also
+.Sx \&Ex .
+.Ss \&Sc
+Close single-quoted context opened by
+.Sx \&So .
+.Ss \&Sh
+Begin a new section.
+For a list of conventional manual sections, see
+.Sx MANUAL STRUCTURE .
+These sections should be used unless it's absolutely necessary that
+custom sections be used.
+.Pp
+Section names should be unique so that they may be keyed by
+.Sx \&Sx .
+Although this macro is parsed, it should not consist of child node or it
+may not be linked with
+.Sx \&Sx .
+.Pp
+See also
+.Sx \&Pp ,
+.Sx \&Ss ,
+and
+.Sx \&Sx .
+.Ss \&Sm
+Switches the spacing mode for output generated from macros.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Sm Op Cm on | off
+.Pp
+By default, spacing is
+.Cm on .
+When switched
+.Cm off ,
+no white space is inserted between macro arguments and between the
+output generated from adjacent macros, but text lines
+still get normal spacing between words and sentences.
+.Pp
+When called without an argument, the
+.Sx \&Sm
+macro toggles the spacing mode.
+Using this is not recommended because it makes the code harder to read.
+.Ss \&So
+Multi-line version of
+.Sx \&Sq .
+.Ss \&Sq
+Encloses its arguments in
+.Sq typewriter
+single-quotes.
+.Pp
+See also
+.Sx \&Dq ,
+.Sx \&Qq ,
+and
+.Sx \&So .
+.Ss \&Ss
+Begin a new subsection.
+Unlike with
+.Sx \&Sh ,
+there is no convention for the naming of subsections.
+Except
+.Em DESCRIPTION ,
+the conventional sections described in
+.Sx MANUAL STRUCTURE
+rarely have subsections.
+.Pp
+Sub-section names should be unique so that they may be keyed by
+.Sx \&Sx .
+Although this macro is parsed, it should not consist of child node or it
+may not be linked with
+.Sx \&Sx .
+.Pp
+See also
+.Sx \&Pp ,
+.Sx \&Sh ,
+and
+.Sx \&Sx .
+.Ss \&St
+Replace an abbreviation for a standard with the full form.
+The following standards are recognised.
+Where multiple lines are given without a blank line in between,
+they all refer to the same standard, and using the first form
+is recommended.
+.Bl -tag -width 1n
+.It C language standards
+.Pp
+.Bl -tag -width "-p1003.1g-2000" -compact
+.It \-ansiC
+.St -ansiC
+.It \-ansiC-89
+.St -ansiC-89
+.It \-isoC
+.St -isoC
+.It \-isoC-90
+.St -isoC-90
+.br
+The original C standard.
+.Pp
+.It \-isoC-amd1
+.St -isoC-amd1
+.Pp
+.It \-isoC-tcor1
+.St -isoC-tcor1
+.Pp
+.It \-isoC-tcor2
+.St -isoC-tcor2
+.Pp
+.It \-isoC-99
+.St -isoC-99
+.br
+The second major version of the C language standard.
+.Pp
+.It \-isoC-2011
+.St -isoC-2011
+.br
+The third major version of the C language standard.
+.El
+.It POSIX.1 before the Single UNIX Specification
+.Pp
+.Bl -tag -width "-p1003.1g-2000" -compact
+.It \-p1003.1-88
+.St -p1003.1-88
+.It \-p1003.1
+.St -p1003.1
+.br
+The original POSIX standard, based on ANSI C.
+.Pp
+.It \-p1003.1-90
+.St -p1003.1-90
+.It \-iso9945-1-90
+.St -iso9945-1-90
+.br
+The first update of POSIX.1.
+.Pp
+.It \-p1003.1b-93
+.St -p1003.1b-93
+.It \-p1003.1b
+.St -p1003.1b
+.br
+Real-time extensions.
+.Pp
+.It \-p1003.1c-95
+.St -p1003.1c-95
+.br
+POSIX thread interfaces.
+.Pp
+.It \-p1003.1i-95
+.St -p1003.1i-95
+.br
+Technical Corrigendum.
+.Pp
+.It \-p1003.1-96
+.St -p1003.1-96
+.It \-iso9945-1-96
+.St -iso9945-1-96
+.br
+Includes POSIX.1-1990, 1b, 1c, and 1i.
+.El
+.It X/Open Portability Guide version 4 and related standards
+.Pp
+.Bl -tag -width "-p1003.1g-2000" -compact
+.It \-xpg3
+.St -xpg3
+.br
+An XPG4 precursor, published in 1989.
+.Pp
+.It \-p1003.2
+.St -p1003.2
+.It \-p1003.2-92
+.St -p1003.2-92
+.It \-iso9945-2-93
+.St -iso9945-2-93
+.br
+An XCU4 precursor.
+.Pp
+.It \-p1003.2a-92
+.St -p1003.2a-92
+.br
+Updates to POSIX.2.
+.Pp
+.It \-xpg4
+.St -xpg4
+.br
+Based on POSIX.1 and POSIX.2, published in 1992.
+.El
+.It Single UNIX Specification version 1 and related standards
+.Pp
+.Bl -tag -width "-p1003.1g-2000" -compact
+.It \-susv1
+.St -susv1
+.It \-xpg4.2
+.St -xpg4.2
+.br
+This standard was published in 1994.
+It was used as the basis for UNIX 95 certification.
+The following three refer to parts of it.
+.Pp
+.It \-xsh4.2
+.St -xsh4.2
+.Pp
+.It \-xcurses4.2
+.St -xcurses4.2
+.Pp
+.It \-p1003.1g-2000
+.St -p1003.1g-2000
+.br
+Networking APIs, including sockets.
+.Pp
+.It \-svid4
+.St -svid4 ,
+.br
+Published in 1995.
+.El
+.It Single UNIX Specification version 2 and related standards
+.Pp
+.Bl -tag -width "-p1003.1g-2000" -compact
+.It \-susv2
+.St -susv2
+This Standard was published in 1997
+and is also called X/Open Portability Guide version 5.
+It was used as the basis for UNIX 98 certification.
+The following refer to parts of it.
+.Pp
+.It \-xbd5
+.St -xbd5
+.Pp
+.It \-xsh5
+.St -xsh5
+.Pp
+.It \-xcu5
+.St -xcu5
+.Pp
+.It \-xns5
+.St -xns5
+.It \-xns5.2
+.St -xns5.2
+.El
+.It Single UNIX Specification version 3
+.Pp
+.Bl -tag -width "-p1003.1-2001" -compact
+.It \-p1003.1-2001
+.St -p1003.1-2001
+.It \-susv3
+.St -susv3
+.br
+This standard is based on C99, SUSv2, POSIX.1-1996, 1d, and 1j.
+It is also called X/Open Portability Guide version 6.
+It is used as the basis for UNIX 03 certification.
+.Pp
+.It \-p1003.1-2004
+.St -p1003.1-2004
+.br
+The second and last Technical Corrigendum.
+.El
+.It Single UNIX Specification version 4
+.Pp
+.Bl -tag -width "-p1003.1g-2000" -compact
+.It \-p1003.1-2008
+.St -p1003.1-2008
+.It \-susv4
+.St -susv4
+.br
+This standard is also called
+X/Open Portability Guide version 7.
+.El
+.It Other standards
+.Pp
+.Bl -tag -width "-p1003.1g-2000" -compact
+.It \-ieee754
+.St -ieee754
+.br
+Floating-point arithmetic.
+.Pp
+.It \-iso8601
+.St -iso8601
+.br
+Representation of dates and times, published in 1988.
+.Pp
+.It \-iso8802-3
+.St -iso8802-3
+.br
+Ethernet local area networks.
+.Pp
+.It \-ieee1275-94
+.St -ieee1275-94
+.El
+.El
+.Ss \&Sx
+Reference a section or subsection in the same manual page.
+The referenced section or subsection name must be identical to the
+enclosed argument, including whitespace.
+.Pp
+Examples:
+.Dl \&.Sx MANUAL STRUCTURE
+.Pp
+See also
+.Sx \&Sh
+and
+.Sx \&Ss .
+.Ss \&Sy
+Request a boldface font.
+.Pp
+This is most often used to indicate importance or seriousness (not to be
+confused with stress emphasis, see
+.Sx \&Em ) .
+When none of the semantic macros fit, it is also adequate for syntax
+elements that have to be given or that appear verbatim.
+.Pp
+Examples:
+.Bd -literal -compact -offset indent
+\&.Sy Warning :
+If
+\&.Sy s
+appears in the owner permissions, set-user-ID mode is set.
+This utility replaces the former
+\&.Sy dumpdir
+program.
+.Ed
+.Pp
+See also
+.Sx \&Bf ,
+.Sx \&Em ,
+.Sx \&Li ,
+and
+.Sx \&No .
+.Ss \&Ta
+Table cell separator in
+.Sx \&Bl Fl column
+lists; can only be used below
+.Sx \&It .
+.Ss \&Tn
+Supported only for compatibility, do not use this in new manuals.
+Even though the macro name
+.Pq Dq tradename
+suggests a semantic function, historic usage is inconsistent, mostly
+using it as a presentation-level macro to request a small caps font.
+.Ss \&Ud
+Supported only for compatibility, do not use this in new manuals.
+Prints out
+.Dq currently under development.
+.Ss \&Ux
+Supported only for compatibility, do not use this in new manuals.
+Prints out
+.Dq Ux .
+.Ss \&Va
+A variable name.
+.Pp
+Examples:
+.Dl \&.Va foo
+.Dl \&.Va const char *bar ;
+.Pp
+For function arguments and parameters, use
+.Sx \&Fa
+instead.
+For declarations of global variables in the
+.Em SYNOPSIS
+section, use
+.Sx \&Vt .
+.Ss \&Vt
+A variable type.
+.Pp
+This is also used for indicating global variables in the
+.Em SYNOPSIS
+section, in which case a variable name is also specified.
+Note that it accepts
+.Sx Block partial-implicit
+syntax when invoked as the first macro on an input line in the
+.Em SYNOPSIS
+section, else it accepts ordinary
+.Sx In-line
+syntax.
+In the former case, this macro starts a new output line,
+and a blank line is inserted in front if there is a preceding
+function definition or include directive.
+.Pp
+Examples:
+.Dl \&.Vt unsigned char
+.Dl \&.Vt extern const char * const sys_signame[] \&;
+.Pp
+For parameters in function prototypes, use
+.Sx \&Fa
+instead, for function return types
+.Sx \&Ft ,
+and for variable names outside the
+.Em SYNOPSIS
+section
+.Sx \&Va ,
+even when including a type with the name.
+See also
+.Sx MANUAL STRUCTURE .
+.Ss \&Xc
+Close a scope opened by
+.Sx \&Xo .
+.Ss \&Xo
+Extend the header of an
+.Sx \&It
+macro or the body of a partial-implicit block macro
+beyond the end of the input line.
+This macro originally existed to work around the 9-argument limit
+of historic
+.Xr roff 7 .
+.Ss \&Xr
+Link to another manual
+.Pq Qq cross-reference .
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Sx \&Xr Ar name section
+.Pp
+Cross reference the
+.Ar name
+and
+.Ar section
+number of another man page.
+.Pp
+Examples:
+.Dl \&.Xr mandoc 1
+.Dl \&.Xr mandoc 1 \&;
+.Dl \&.Xr mandoc 1 \&Ns s behaviour
+.Sh MACRO SYNTAX
+The syntax of a macro depends on its classification.
+In this section,
+.Sq \-arg
+refers to macro arguments, which may be followed by zero or more
+.Sq parm
+parameters;
+.Sq \&Yo
+opens the scope of a macro; and if specified,
+.Sq \&Yc
+closes it out.
+.Pp
+The
+.Em Callable
+column indicates that the macro may also be called by passing its name
+as an argument to another macro.
+For example,
+.Sq \&.Op \&Fl O \&Ar file
+produces
+.Sq Op Fl O Ar file .
+To prevent a macro call and render the macro name literally,
+escape it by prepending a zero-width space,
+.Sq \e& .
+For example,
+.Sq \&Op \e&Fl O
+produces
+.Sq Op \&Fl O .
+If a macro is not callable but its name appears as an argument
+to another macro, it is interpreted as opaque text.
+For example,
+.Sq \&.Fl \&Sh
+produces
+.Sq Fl \&Sh .
+.Pp
+The
+.Em Parsed
+column indicates whether the macro may call other macros by receiving
+their names as arguments.
+If a macro is not parsed but the name of another macro appears
+as an argument, it is interpreted as opaque text.
+.Pp
+The
+.Em Scope
+column, if applicable, describes closure rules.
+.Ss Block full-explicit
+Multi-line scope closed by an explicit closing macro.
+All macros contains bodies; only
+.Sx \&Bf
+and
+.Pq optionally
+.Sx \&Bl
+contain a head.
+.Bd -literal -offset indent
+\&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead...\(rB
+\(lBbody...\(rB
+\&.Yc
+.Ed
+.Bl -column "MacroX" "CallableX" "ParsedX" "closed by XXX" -offset indent
+.It Em Macro Ta Em Callable Ta Em Parsed Ta Em Scope
+.It Sx \&Bd  Ta    \&No     Ta    \&No     Ta    closed by Sx \&Ed
+.It Sx \&Bf  Ta    \&No     Ta    \&No     Ta    closed by Sx \&Ef
+.It Sx \&Bk  Ta    \&No     Ta    \&No     Ta    closed by Sx \&Ek
+.It Sx \&Bl  Ta    \&No     Ta    \&No     Ta    closed by Sx \&El
+.It Sx \&Ed  Ta    \&No     Ta    \&No     Ta    opened by Sx \&Bd
+.It Sx \&Ef  Ta    \&No     Ta    \&No     Ta    opened by Sx \&Bf
+.It Sx \&Ek  Ta    \&No     Ta    \&No     Ta    opened by Sx \&Bk
+.It Sx \&El  Ta    \&No     Ta    \&No     Ta    opened by Sx \&Bl
+.El
+.Ss Block full-implicit
+Multi-line scope closed by end-of-file or implicitly by another macro.
+All macros have bodies; some
+.Po
+.Sx \&It Fl bullet ,
+.Fl hyphen ,
+.Fl dash ,
+.Fl enum ,
+.Fl item
+.Pc
+don't have heads; only one
+.Po
+.Sx \&It
+in
+.Sx \&Bl Fl column
+.Pc
+has multiple heads.
+.Bd -literal -offset indent
+\&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead... \(lBTa head...\(rB\(rB
+\(lBbody...\(rB
+.Ed
+.Bl -column "MacroX" "CallableX" "ParsedX" "closed by XXXXXXXXXXX" -offset indent
+.It Em Macro Ta Em Callable Ta Em Parsed Ta Em Scope
+.It Sx \&It Ta \&No Ta Yes  Ta closed by Sx \&It , Sx \&El
+.It Sx \&Nd Ta \&No Ta \&No Ta closed by Sx \&Sh
+.It Sx \&Nm Ta \&No Ta Yes  Ta closed by Sx \&Nm , Sx \&Sh , Sx \&Ss
+.It Sx \&Sh Ta \&No Ta Yes  Ta closed by Sx \&Sh
+.It Sx \&Ss Ta \&No Ta Yes  Ta closed by Sx \&Sh , Sx \&Ss
+.El
+.Pp
+Note that the
+.Sx \&Nm
+macro is a
+.Sx Block full-implicit
+macro only when invoked as the first macro
+in a
+.Em SYNOPSIS
+section line, else it is
+.Sx In-line .
+.Ss Block partial-explicit
+Like block full-explicit, but also with single-line scope.
+Each has at least a body and, in limited circumstances, a head
+.Po
+.Sx \&Fo ,
+.Sx \&Eo
+.Pc
+and/or tail
+.Pq Sx \&Ec .
+.Bd -literal -offset indent
+\&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead...\(rB
+\(lBbody...\(rB
+\&.Yc \(lBtail...\(rB
+
+\&.Yo \(lB\-arg \(lBparm...\(rB\(rB \(lBhead...\(rB \
+\(lBbody...\(rB \&Yc \(lBtail...\(rB
+.Ed
+.Bl -column "MacroX" "CallableX" "ParsedX" "closed by XXXX" -offset indent
+.It Em Macro Ta Em Callable Ta Em Parsed Ta Em Scope
+.It Sx \&Ac  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Ao
+.It Sx \&Ao  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Ac
+.It Sx \&Bc  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Bo
+.It Sx \&Bo  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Bc
+.It Sx \&Brc Ta    Yes      Ta    Yes      Ta    opened by Sx \&Bro
+.It Sx \&Bro Ta    Yes      Ta    Yes      Ta    closed by Sx \&Brc
+.It Sx \&Dc  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Do
+.It Sx \&Do  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Dc
+.It Sx \&Ec  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Eo
+.It Sx \&Eo  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Ec
+.It Sx \&Fc  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Fo
+.It Sx \&Fo  Ta    \&No     Ta    \&No     Ta    closed by Sx \&Fc
+.It Sx \&Oc  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Oo
+.It Sx \&Oo  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Oc
+.It Sx \&Pc  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Po
+.It Sx \&Po  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Pc
+.It Sx \&Qc  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Oo
+.It Sx \&Qo  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Oc
+.It Sx \&Re  Ta    \&No     Ta    \&No     Ta    opened by Sx \&Rs
+.It Sx \&Rs  Ta    \&No     Ta    \&No     Ta    closed by Sx \&Re
+.It Sx \&Sc  Ta    Yes      Ta    Yes      Ta    opened by Sx \&So
+.It Sx \&So  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Sc
+.It Sx \&Xc  Ta    Yes      Ta    Yes      Ta    opened by Sx \&Xo
+.It Sx \&Xo  Ta    Yes      Ta    Yes      Ta    closed by Sx \&Xc
+.El
+.Ss Block partial-implicit
+Like block full-implicit, but with single-line scope closed by the
+end of the line.
+.Bd -literal -offset indent
+\&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBbody...\(rB \(lBres...\(rB
+.Ed
+.Bl -column "MacroX" "CallableX" "ParsedX" -offset indent
+.It Em Macro Ta Em Callable Ta Em Parsed
+.It Sx \&Aq  Ta    Yes      Ta    Yes
+.It Sx \&Bq  Ta    Yes      Ta    Yes
+.It Sx \&Brq Ta    Yes      Ta    Yes
+.It Sx \&D1  Ta    \&No     Ta    \&Yes
+.It Sx \&Dl  Ta    \&No     Ta    Yes
+.It Sx \&Dq  Ta    Yes      Ta    Yes
+.It Sx \&En  Ta    Yes      Ta    Yes
+.It Sx \&Op  Ta    Yes      Ta    Yes
+.It Sx \&Pq  Ta    Yes      Ta    Yes
+.It Sx \&Ql  Ta    Yes      Ta    Yes
+.It Sx \&Qq  Ta    Yes      Ta    Yes
+.It Sx \&Sq  Ta    Yes      Ta    Yes
+.It Sx \&Vt  Ta    Yes      Ta    Yes
+.El
+.Pp
+Note that the
+.Sx \&Vt
+macro is a
+.Sx Block partial-implicit
+only when invoked as the first macro
+in a
+.Em SYNOPSIS
+section line, else it is
+.Sx In-line .
+.Ss Special block macro
+The
+.Sx \&Ta
+macro can only be used below
+.Sx \&It
+in
+.Sx \&Bl Fl column
+lists.
+It delimits blocks representing table cells;
+these blocks have bodies, but no heads.
+.Bl -column "MacroX" "CallableX" "ParsedX" "closed by XXXX" -offset indent
+.It Em Macro Ta Em Callable Ta Em Parsed Ta Em Scope
+.It Sx \&Ta  Ta    Yes      Ta    Yes    Ta closed by Sx \&Ta , Sx \&It
+.El
+.Ss In-line
+Closed by the end of the line, fixed argument lengths,
+and/or subsequent macros.
+In-line macros have only text children.
+If a number (or inequality) of arguments is
+.Pq n ,
+then the macro accepts an arbitrary number of arguments.
+.Bd -literal -offset indent
+\&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBargs...\(rB \(lBres...\(rB
+
+\&.Yo \(lB\-arg \(lBval...\(rB\(rB \(lBargs...\(rB Yc...
+
+\&.Yo \(lB\-arg \(lBval...\(rB\(rB arg0 arg1 argN
+.Ed
+.Bl -column "MacroX" "CallableX" "ParsedX" "Arguments" -offset indent
+.It Em Macro Ta Em Callable Ta Em Parsed Ta Em Arguments
+.It Sx \&%A  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%B  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%C  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%D  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%I  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%J  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%N  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%O  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%P  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%Q  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%R  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%T  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%U  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&%V  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&Ad  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&An  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Ap  Ta    Yes      Ta    Yes      Ta    0
+.It Sx \&Ar  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&At  Ta    Yes      Ta    Yes      Ta    1
+.It Sx \&Bsx Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Bt  Ta    \&No     Ta    \&No     Ta    0
+.It Sx \&Bx  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Cd  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Cm  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Db  Ta    \&No     Ta    \&No     Ta    1
+.It Sx \&Dd  Ta    \&No     Ta    \&No     Ta    n
+.It Sx \&Dt  Ta    \&No     Ta    \&No     Ta    n
+.It Sx \&Dv  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Dx  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Em  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Er  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Es  Ta    Yes      Ta    Yes      Ta    2
+.It Sx \&Ev  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Ex  Ta    \&No     Ta    \&No     Ta    n
+.It Sx \&Fa  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Fd  Ta    \&No     Ta    \&No     Ta    >0
+.It Sx \&Fl  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Fn  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Fr  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Ft  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Fx  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Hf  Ta    \&No     Ta    \&No     Ta    n
+.It Sx \&Ic  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&In  Ta    \&No     Ta    \&No     Ta    1
+.It Sx \&Lb  Ta    \&No     Ta    \&No     Ta    1
+.It Sx \&Li  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Lk  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Lp  Ta    \&No     Ta    \&No     Ta    0
+.It Sx \&Ms  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Mt  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Nm  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&No  Ta    Yes      Ta    Yes      Ta    0
+.It Sx \&Ns  Ta    Yes      Ta    Yes      Ta    0
+.It Sx \&Nx  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Os  Ta    \&No     Ta    \&No     Ta    n
+.It Sx \&Ot  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Ox  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Pa  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Pf  Ta    Yes      Ta    Yes      Ta    1
+.It Sx \&Pp  Ta    \&No     Ta    \&No     Ta    0
+.It Sx \&Rv  Ta    \&No     Ta    \&No     Ta    n
+.It Sx \&Sm  Ta    \&No     Ta    \&No     Ta    <2
+.It Sx \&St  Ta    \&No     Ta    Yes      Ta    1
+.It Sx \&Sx  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Sy  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Tn  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Ud  Ta    \&No     Ta    \&No     Ta    0
+.It Sx \&Ux  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Va  Ta    Yes      Ta    Yes      Ta    n
+.It Sx \&Vt  Ta    Yes      Ta    Yes      Ta    >0
+.It Sx \&Xr  Ta    Yes      Ta    Yes      Ta    2
+.El
+.Ss Delimiters
+When a macro argument consists of one single input character
+considered as a delimiter, the argument gets special handling.
+This does not apply when delimiters appear in arguments containing
+more than one character.
+Consequently, to prevent special handling and just handle it
+like any other argument, a delimiter can be escaped by prepending
+a zero-width space
+.Pq Sq \e& .
+In text lines, delimiters never need escaping, but may be used
+as normal punctuation.
+.Pp
+For many macros, when the leading arguments are opening delimiters,
+these delimiters are put before the macro scope,
+and when the trailing arguments are closing delimiters,
+these delimiters are put after the macro scope.
+Spacing is suppressed after opening delimiters
+and before closing delimiters.
+For example,
+.Pp
+.D1 Pf \. \&Aq "( [ word ] ) ."
+.Pp
+renders as:
+.Pp
+.D1 Aq ( [ word ] ) .
+.Pp
+Opening delimiters are:
+.Pp
+.Bl -tag -width Ds -offset indent -compact
+.It \&(
+left parenthesis
+.It \&[
+left bracket
+.El
+.Pp
+Closing delimiters are:
+.Pp
+.Bl -tag -width Ds -offset indent -compact
+.It \&.
+period
+.It \&,
+comma
+.It \&:
+colon
+.It \&;
+semicolon
+.It \&)
+right parenthesis
+.It \&]
+right bracket
+.It \&?
+question mark
+.It \&!
+exclamation mark
+.El
+.Pp
+Note that even a period preceded by a backslash
+.Pq Sq \e.\&
+gets this special handling; use
+.Sq \e&.
+to prevent that.
+.Pp
+Many in-line macros interrupt their scope when they encounter
+delimiters, and resume their scope when more arguments follow that
+are not delimiters.
+For example,
+.Pp
+.D1 Pf \. \&Fl "a ( b | c \e*(Ba d ) e"
+.Pp
+renders as:
+.Pp
+.D1 Fl a ( b | c \*(Ba d ) e
+.Pp
+This applies to both opening and closing delimiters,
+and also to the middle delimiter, which does not suppress spacing:
+.Pp
+.Bl -tag -width Ds -offset indent -compact
+.It \&|
+vertical bar
+.El
+.Pp
+As a special case, the predefined string \e*(Ba is handled and rendered
+in the same way as a plain
+.Sq \&|
+character.
+Using this predefined string is not recommended in new manuals.
+.Ss Font handling
+In
+.Nm
+documents, usage of semantic markup is recommended in order to have
+proper fonts automatically selected; only when no fitting semantic markup
+is available, consider falling back to
+.Sx Physical markup
+macros.
+Whenever any
+.Nm
+macro switches the
+.Xr roff 7
+font mode, it will automatically restore the previous font when exiting
+its scope.
+Manually switching the font using the
+.Xr roff 7
+.Ql \ef
+font escape sequences is never required.
+.Sh COMPATIBILITY
+This section provides an incomplete list of compatibility issues
+between mandoc and GNU troff
+.Pq Qq groff .
+.Pp
+The following problematic behaviour is found in groff:
+.Pp
+.Bl -dash -compact
+.It
+.Sx \&Dd
+with non-standard arguments behaves very strangely.
+When there are three arguments, they are printed verbatim.
+Any other number of arguments is replaced by the current date,
+but without any arguments the string
+.Dq Epoch
+is printed.
+.It
+.Sx \&Lk
+only accepts a single link-name argument; the remainder is misformatted.
+.It
+.Sx \&Pa
+does not format its arguments when used in the FILES section under
+certain list types.
+.It
+.Sx \&Ta
+can only be called by other macros, but not at the beginning of a line.
+.It
+.Sx \&%C
+is not implemented (up to and including groff-1.22.2).
+.It
+.Sq \ef
+.Pq font face
+and
+.Sq \eF
+.Pq font family face
+.Sx Text Decoration
+escapes behave irregularly when specified within line-macro scopes.
+.It
+Negative scaling units return to prior lines.
+Instead, mandoc truncates them to zero.
+.El
+.Pp
+The following features are unimplemented in mandoc:
+.Pp
+.Bl -dash -compact
+.It
+.Sx \&Bd
+.Fl file Ar file
+is unsupported for security reasons.
+.It
+.Sx \&Bd
+.Fl filled
+does not adjust the right margin, but is an alias for
+.Sx \&Bd
+.Fl ragged .
+.It
+.Sx \&Bd
+.Fl literal
+does not use a literal font, but is an alias for
+.Sx \&Bd
+.Fl unfilled .
+.It
+.Sx \&Bd
+.Fl offset Cm center
+and
+.Fl offset Cm right
+don't work.
+Groff does not implement centered and flush-right rendering either,
+but produces large indentations.
+.El
+.Sh SEE ALSO
+.Xr man 1 ,
+.Xr mandoc 1 ,
+.Xr eqn 7 ,
+.Xr man 7 ,
+.Xr mandoc_char 7 ,
+.Xr roff 7 ,
+.Xr tbl 7
+.Pp
+The web page
+.Lk http://mandoc.bsd.lv/mdoc/ "extended documentation for the mdoc language"
+provides a few tutorial-style pages for beginners, an extensive style
+guide for advanced authors, and an alphabetic index helping to choose
+the best macros for various kinds of content.
+.Sh HISTORY
+The
+.Nm
+language first appeared as a troff macro package in
+.Bx 4.4 .
+It was later significantly updated by Werner Lemberg and Ruslan Ermilov
+in groff-1.17.
+The standalone implementation that is part of the
+.Xr mandoc 1
+utility written by Kristaps Dzonsons appeared in
+.Ox 4.6 .
+.Sh AUTHORS
+The
+.Nm
+reference was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv .

Added: vendor/mandoc/dist/mdoc.c
===================================================================
--- vendor/mandoc/dist/mdoc.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,459 @@
+/*	$Id: mdoc.c,v 1.267 2017/06/17 13:06:16 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libmdoc.h"
+
+const	char *const __mdoc_argnames[MDOC_ARG_MAX] = {
+	"split",		"nosplit",		"ragged",
+	"unfilled",		"literal",		"file",
+	"offset",		"bullet",		"dash",
+	"hyphen",		"item",			"enum",
+	"tag",			"diag",			"hang",
+	"ohang",		"inset",		"column",
+	"width",		"compact",		"std",
+	"filled",		"words",		"emphasis",
+	"symbolic",		"nested",		"centered"
+};
+const	char * const *mdoc_argnames = __mdoc_argnames;
+
+static	int		  mdoc_ptext(struct roff_man *, int, char *, int);
+static	int		  mdoc_pmacro(struct roff_man *, int, char *, int);
+
+
+/*
+ * Main parse routine.  Parses a single line -- really just hands off to
+ * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
+ */
+int
+mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs)
+{
+
+	if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line)
+		mdoc->flags |= MDOC_NEWLINE;
+
+	/*
+	 * Let the roff nS register switch SYNOPSIS mode early,
+	 * such that the parser knows at all times
+	 * whether this mode is on or off.
+	 * Note that this mode is also switched by the Sh macro.
+	 */
+	if (roff_getreg(mdoc->roff, "nS"))
+		mdoc->flags |= MDOC_SYNOPSIS;
+	else
+		mdoc->flags &= ~MDOC_SYNOPSIS;
+
+	return roff_getcontrol(mdoc->roff, buf, &offs) ?
+	    mdoc_pmacro(mdoc, ln, buf, offs) :
+	    mdoc_ptext(mdoc, ln, buf, offs);
+}
+
+void
+mdoc_macro(MACRO_PROT_ARGS)
+{
+	assert(tok >= MDOC_Dd && tok < MDOC_MAX);
+	(*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf);
+}
+
+void
+mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, enum roff_tok tok)
+{
+	struct roff_node *p;
+
+	p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok);
+	roff_node_append(mdoc, p);
+	mdoc->next = ROFF_NEXT_CHILD;
+}
+
+struct roff_node *
+mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos,
+    enum roff_tok tok, struct roff_node *body)
+{
+	struct roff_node *p;
+
+	body->flags |= NODE_ENDED;
+	body->parent->flags |= NODE_ENDED;
+	p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok);
+	p->body = body;
+	p->norm = body->norm;
+	p->end = ENDBODY_SPACE;
+	roff_node_append(mdoc, p);
+	mdoc->next = ROFF_NEXT_SIBLING;
+	return p;
+}
+
+struct roff_node *
+mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
+    enum roff_tok tok, struct mdoc_arg *args)
+{
+	struct roff_node *p;
+
+	p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok);
+	p->args = args;
+	if (p->args)
+		(args->refcnt)++;
+
+	switch (tok) {
+	case MDOC_Bd:
+	case MDOC_Bf:
+	case MDOC_Bl:
+	case MDOC_En:
+	case MDOC_Rs:
+		p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
+		break;
+	default:
+		break;
+	}
+	roff_node_append(mdoc, p);
+	mdoc->next = ROFF_NEXT_CHILD;
+	return p;
+}
+
+void
+mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
+     enum roff_tok tok, struct mdoc_arg *args)
+{
+	struct roff_node *p;
+
+	p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok);
+	p->args = args;
+	if (p->args)
+		(args->refcnt)++;
+
+	switch (tok) {
+	case MDOC_An:
+		p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
+		break;
+	default:
+		break;
+	}
+	roff_node_append(mdoc, p);
+	mdoc->next = ROFF_NEXT_CHILD;
+}
+
+void
+mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p)
+{
+
+	roff_node_unlink(mdoc, p);
+	p->prev = p->next = NULL;
+	roff_node_append(mdoc, p);
+}
+
+/*
+ * Parse free-form text, that is, a line that does not begin with the
+ * control character.
+ */
+static int
+mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)
+{
+	struct roff_node *n;
+	const char	 *cp, *sp;
+	char		 *c, *ws, *end;
+
+	n = mdoc->last;
+
+	/*
+	 * If a column list contains plain text, assume an implicit item
+	 * macro.  This can happen one or more times at the beginning
+	 * of such a list, intermixed with non-It mdoc macros and with
+	 * nodes generated on the roff level, for example by tbl.
+	 */
+
+	if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
+	     n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
+	    (n->parent != NULL && n->parent->tok == MDOC_Bl &&
+	     n->parent->norm->Bl.type == LIST_column)) {
+		mdoc->flags |= MDOC_FREECOL;
+		mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
+		return 1;
+	}
+
+	/*
+	 * Search for the beginning of unescaped trailing whitespace (ws)
+	 * and for the first character not to be output (end).
+	 */
+
+	/* FIXME: replace with strcspn(). */
+	ws = NULL;
+	for (c = end = buf + offs; *c; c++) {
+		switch (*c) {
+		case ' ':
+			if (NULL == ws)
+				ws = c;
+			continue;
+		case '\t':
+			/*
+			 * Always warn about trailing tabs,
+			 * even outside literal context,
+			 * where they should be put on the next line.
+			 */
+			if (NULL == ws)
+				ws = c;
+			/*
+			 * Strip trailing tabs in literal context only;
+			 * outside, they affect the next line.
+			 */
+			if (MDOC_LITERAL & mdoc->flags)
+				continue;
+			break;
+		case '\\':
+			/* Skip the escaped character, too, if any. */
+			if (c[1])
+				c++;
+			/* FALLTHROUGH */
+		default:
+			ws = NULL;
+			break;
+		}
+		end = c + 1;
+	}
+	*end = '\0';
+
+	if (ws)
+		mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
+		    line, (int)(ws-buf), NULL);
+
+	/*
+	 * Blank lines are allowed in no-fill mode
+	 * and cancel preceding \c,
+	 * but add a single vertical space elsewhere.
+	 */
+
+	if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) {
+		switch (mdoc->last->type) {
+		case ROFFT_TEXT:
+			sp = mdoc->last->string;
+			cp = end = strchr(sp, '\0') - 2;
+			if (cp < sp || cp[0] != '\\' || cp[1] != 'c')
+				break;
+			while (cp > sp && cp[-1] == '\\')
+				cp--;
+			if ((end - cp) % 2)
+				break;
+			*end = '\0';
+			return 1;
+		default:
+			break;
+		}
+		mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
+		    line, (int)(c - buf), NULL);
+		roff_elem_alloc(mdoc, line, offs, ROFF_sp);
+		mdoc->last->flags |= NODE_VALID | NODE_ENDED;
+		mdoc->next = ROFF_NEXT_SIBLING;
+		return 1;
+	}
+
+	roff_word_alloc(mdoc, line, offs, buf+offs);
+
+	if (mdoc->flags & MDOC_LITERAL)
+		return 1;
+
+	/*
+	 * End-of-sentence check.  If the last character is an unescaped
+	 * EOS character, then flag the node as being the end of a
+	 * sentence.  The front-end will know how to interpret this.
+	 */
+
+	assert(buf < end);
+
+	if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
+		mdoc->last->flags |= NODE_EOS;
+
+	for (c = buf + offs; c != NULL; c = strchr(c + 1, '.')) {
+		if (c - buf < offs + 2)
+			continue;
+		if (end - c < 3)
+			break;
+		if (c[1] != ' ' ||
+		    isalpha((unsigned char)c[-2]) == 0 ||
+		    isalpha((unsigned char)c[-1]) == 0 ||
+		    (c[-2] == 'n' && c[-1] == 'c') ||
+		    (c[-2] == 'v' && c[-1] == 's'))
+			continue;
+		c += 2;
+		if (*c == ' ')
+			c++;
+		if (*c == ' ')
+			c++;
+		if (isupper((unsigned char)(*c)))
+			mandoc_msg(MANDOCERR_EOS, mdoc->parse,
+			    line, (int)(c - buf), NULL);
+	}
+
+	return 1;
+}
+
+/*
+ * Parse a macro line, that is, a line beginning with the control
+ * character.
+ */
+static int
+mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs)
+{
+	struct roff_node *n;
+	const char	 *cp;
+	size_t		  sz;
+	enum roff_tok	  tok;
+	int		  sv;
+
+	/* Determine the line macro. */
+
+	sv = offs;
+	tok = TOKEN_NONE;
+	for (sz = 0; sz < 4 && strchr(" \t\\", buf[offs]) == NULL; sz++)
+		offs++;
+	if (sz == 2 || sz == 3)
+		tok = roffhash_find(mdoc->mdocmac, buf + sv, sz);
+	if (tok == TOKEN_NONE) {
+		mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
+		    ln, sv, buf + sv - 1);
+		return 1;
+	}
+
+	/* Skip a leading escape sequence or tab. */
+
+	switch (buf[offs]) {
+	case '\\':
+		cp = buf + offs + 1;
+		mandoc_escape(&cp, NULL, NULL);
+		offs = cp - buf;
+		break;
+	case '\t':
+		offs++;
+		break;
+	default:
+		break;
+	}
+
+	/* Jump to the next non-whitespace word. */
+
+	while (buf[offs] == ' ')
+		offs++;
+
+	/*
+	 * Trailing whitespace.  Note that tabs are allowed to be passed
+	 * into the parser as "text", so we only warn about spaces here.
+	 */
+
+	if ('\0' == buf[offs] && ' ' == buf[offs - 1])
+		mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
+		    ln, offs - 1, NULL);
+
+	/*
+	 * If an initial macro or a list invocation, divert directly
+	 * into macro processing.
+	 */
+
+	n = mdoc->last;
+	if (n == NULL || tok == MDOC_It || tok == MDOC_El) {
+		mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
+		return 1;
+	}
+
+	/*
+	 * If a column list contains a non-It macro, assume an implicit
+	 * item macro.  This can happen one or more times at the
+	 * beginning of such a list, intermixed with text lines and
+	 * with nodes generated on the roff level, for example by tbl.
+	 */
+
+	if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
+	     n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
+	    (n->parent != NULL && n->parent->tok == MDOC_Bl &&
+	     n->parent->norm->Bl.type == LIST_column)) {
+		mdoc->flags |= MDOC_FREECOL;
+		mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
+		return 1;
+	}
+
+	/* Normal processing of a macro. */
+
+	mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
+
+	/* In quick mode (for mandocdb), abort after the NAME section. */
+
+	if (mdoc->quick && MDOC_Sh == tok &&
+	    SEC_NAME != mdoc->last->sec)
+		return 2;
+
+	return 1;
+}
+
+enum mdelim
+mdoc_isdelim(const char *p)
+{
+
+	if ('\0' == p[0])
+		return DELIM_NONE;
+
+	if ('\0' == p[1])
+		switch (p[0]) {
+		case '(':
+		case '[':
+			return DELIM_OPEN;
+		case '|':
+			return DELIM_MIDDLE;
+		case '.':
+		case ',':
+		case ';':
+		case ':':
+		case '?':
+		case '!':
+		case ')':
+		case ']':
+			return DELIM_CLOSE;
+		default:
+			return DELIM_NONE;
+		}
+
+	if ('\\' != p[0])
+		return DELIM_NONE;
+
+	if (0 == strcmp(p + 1, "."))
+		return DELIM_CLOSE;
+	if (0 == strcmp(p + 1, "fR|\\fP"))
+		return DELIM_MIDDLE;
+
+	return DELIM_NONE;
+}
+
+void
+mdoc_validate(struct roff_man *mdoc)
+{
+
+	mdoc->last = mdoc->first;
+	mdoc_node_validate(mdoc);
+	mdoc_state_reset(mdoc);
+}

Added: vendor/mandoc/dist/mdoc.h
===================================================================
--- vendor/mandoc/dist/mdoc.h	                        (rev 0)
+++ vendor/mandoc/dist/mdoc.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,155 @@
+/*	$Id: mdoc.h,v 1.145 2017/04/24 23:06:18 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+enum	mdocargt {
+	MDOC_Split, /* -split */
+	MDOC_Nosplit, /* -nospli */
+	MDOC_Ragged, /* -ragged */
+	MDOC_Unfilled, /* -unfilled */
+	MDOC_Literal, /* -literal */
+	MDOC_File, /* -file */
+	MDOC_Offset, /* -offset */
+	MDOC_Bullet, /* -bullet */
+	MDOC_Dash, /* -dash */
+	MDOC_Hyphen, /* -hyphen */
+	MDOC_Item, /* -item */
+	MDOC_Enum, /* -enum */
+	MDOC_Tag, /* -tag */
+	MDOC_Diag, /* -diag */
+	MDOC_Hang, /* -hang */
+	MDOC_Ohang, /* -ohang */
+	MDOC_Inset, /* -inset */
+	MDOC_Column, /* -column */
+	MDOC_Width, /* -width */
+	MDOC_Compact, /* -compact */
+	MDOC_Std, /* -std */
+	MDOC_Filled, /* -filled */
+	MDOC_Words, /* -words */
+	MDOC_Emphasis, /* -emphasis */
+	MDOC_Symbolic, /* -symbolic */
+	MDOC_Nested, /* -nested */
+	MDOC_Centred, /* -centered */
+	MDOC_ARG_MAX
+};
+
+/*
+ * An argument to a macro (multiple values = `-column xxx yyy').
+ */
+struct	mdoc_argv {
+	enum mdocargt	  arg; /* type of argument */
+	int		  line;
+	int		  pos;
+	size_t		  sz; /* elements in "value" */
+	char		**value; /* argument strings */
+};
+
+/*
+ * Reference-counted macro arguments.  These are refcounted because
+ * blocks have multiple instances of the same arguments spread across
+ * the HEAD, BODY, TAIL, and BLOCK node types.
+ */
+struct	mdoc_arg {
+	size_t		  argc;
+	struct mdoc_argv *argv;
+	unsigned int	  refcnt;
+};
+
+enum	mdoc_list {
+	LIST__NONE = 0,
+	LIST_bullet, /* -bullet */
+	LIST_column, /* -column */
+	LIST_dash, /* -dash */
+	LIST_diag, /* -diag */
+	LIST_enum, /* -enum */
+	LIST_hang, /* -hang */
+	LIST_hyphen, /* -hyphen */
+	LIST_inset, /* -inset */
+	LIST_item, /* -item */
+	LIST_ohang, /* -ohang */
+	LIST_tag, /* -tag */
+	LIST_MAX
+};
+
+enum	mdoc_disp {
+	DISP__NONE = 0,
+	DISP_centered, /* -centered */
+	DISP_ragged, /* -ragged */
+	DISP_unfilled, /* -unfilled */
+	DISP_filled, /* -filled */
+	DISP_literal /* -literal */
+};
+
+enum	mdoc_auth {
+	AUTH__NONE = 0,
+	AUTH_split, /* -split */
+	AUTH_nosplit /* -nosplit */
+};
+
+enum	mdoc_font {
+	FONT__NONE = 0,
+	FONT_Em, /* Em, -emphasis */
+	FONT_Li, /* Li, -literal */
+	FONT_Sy /* Sy, -symbolic */
+};
+
+struct	mdoc_bd {
+	const char	 *offs; /* -offset */
+	enum mdoc_disp	  type; /* -ragged, etc. */
+	int		  comp; /* -compact */
+};
+
+struct	mdoc_bl {
+	const char	 *width; /* -width */
+	const char	 *offs; /* -offset */
+	enum mdoc_list	  type; /* -tag, -enum, etc. */
+	int		  comp; /* -compact */
+	size_t		  ncols; /* -column arg count */
+	const char	**cols; /* -column val ptr */
+	int		  count; /* -enum counter */
+};
+
+struct	mdoc_bf {
+	enum mdoc_font	  font; /* font */
+};
+
+struct	mdoc_an {
+	enum mdoc_auth	  auth; /* -split, etc. */
+};
+
+struct	mdoc_rs {
+	int		  quote_T; /* whether to quote %T */
+};
+
+/*
+ * Consists of normalised node arguments.  These should be used instead
+ * of iterating through the mdoc_arg pointers of a node: defaults are
+ * provided, etc.
+ */
+union	mdoc_data {
+	struct mdoc_an	  An;
+	struct mdoc_bd	  Bd;
+	struct mdoc_bf	  Bf;
+	struct mdoc_bl	  Bl;
+	struct roff_node *Es;
+	struct mdoc_rs	  Rs;
+};
+
+/* Names of macro args.  Index is enum mdocargt. */
+extern	const char *const *mdoc_argnames;
+
+void		 mdoc_validate(struct roff_man *);

Added: vendor/mandoc/dist/mdoc_argv.c
===================================================================
--- vendor/mandoc/dist/mdoc_argv.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_argv.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,678 @@
+/*	$Id: mdoc_argv.c,v 1.115 2017/05/30 16:22:03 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2012, 2014-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libmdoc.h"
+
+#define	MULTI_STEP	 5 /* pre-allocate argument values */
+#define	DELIMSZ		 6 /* max possible size of a delimiter */
+
+enum	argsflag {
+	ARGSFL_NONE = 0,
+	ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
+	ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
+};
+
+enum	argvflag {
+	ARGV_NONE, /* no args to flag (e.g., -split) */
+	ARGV_SINGLE, /* one arg to flag (e.g., -file xxx)  */
+	ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */
+};
+
+struct	mdocarg {
+	enum argsflag	 flags;
+	const enum mdocargt *argvs;
+};
+
+static	void		 argn_free(struct mdoc_arg *, int);
+static	enum margserr	 args(struct roff_man *, int, int *,
+				char *, enum argsflag, char **);
+static	int		 args_checkpunct(const char *, int);
+static	void		 argv_multi(struct roff_man *, int,
+				struct mdoc_argv *, int *, char *);
+static	void		 argv_single(struct roff_man *, int,
+				struct mdoc_argv *, int *, char *);
+
+static	const enum argvflag argvflags[MDOC_ARG_MAX] = {
+	ARGV_NONE,	/* MDOC_Split */
+	ARGV_NONE,	/* MDOC_Nosplit */
+	ARGV_NONE,	/* MDOC_Ragged */
+	ARGV_NONE,	/* MDOC_Unfilled */
+	ARGV_NONE,	/* MDOC_Literal */
+	ARGV_SINGLE,	/* MDOC_File */
+	ARGV_SINGLE,	/* MDOC_Offset */
+	ARGV_NONE,	/* MDOC_Bullet */
+	ARGV_NONE,	/* MDOC_Dash */
+	ARGV_NONE,	/* MDOC_Hyphen */
+	ARGV_NONE,	/* MDOC_Item */
+	ARGV_NONE,	/* MDOC_Enum */
+	ARGV_NONE,	/* MDOC_Tag */
+	ARGV_NONE,	/* MDOC_Diag */
+	ARGV_NONE,	/* MDOC_Hang */
+	ARGV_NONE,	/* MDOC_Ohang */
+	ARGV_NONE,	/* MDOC_Inset */
+	ARGV_MULTI,	/* MDOC_Column */
+	ARGV_SINGLE,	/* MDOC_Width */
+	ARGV_NONE,	/* MDOC_Compact */
+	ARGV_NONE,	/* MDOC_Std */
+	ARGV_NONE,	/* MDOC_Filled */
+	ARGV_NONE,	/* MDOC_Words */
+	ARGV_NONE,	/* MDOC_Emphasis */
+	ARGV_NONE,	/* MDOC_Symbolic */
+	ARGV_NONE	/* MDOC_Symbolic */
+};
+
+static	const enum mdocargt args_Ex[] = {
+	MDOC_Std,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_An[] = {
+	MDOC_Split,
+	MDOC_Nosplit,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bd[] = {
+	MDOC_Ragged,
+	MDOC_Unfilled,
+	MDOC_Filled,
+	MDOC_Literal,
+	MDOC_File,
+	MDOC_Offset,
+	MDOC_Compact,
+	MDOC_Centred,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bf[] = {
+	MDOC_Emphasis,
+	MDOC_Literal,
+	MDOC_Symbolic,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bk[] = {
+	MDOC_Words,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bl[] = {
+	MDOC_Bullet,
+	MDOC_Dash,
+	MDOC_Hyphen,
+	MDOC_Item,
+	MDOC_Enum,
+	MDOC_Tag,
+	MDOC_Diag,
+	MDOC_Hang,
+	MDOC_Ohang,
+	MDOC_Inset,
+	MDOC_Column,
+	MDOC_Width,
+	MDOC_Offset,
+	MDOC_Compact,
+	MDOC_Nested,
+	MDOC_ARG_MAX
+};
+
+static	const struct mdocarg __mdocargs[MDOC_MAX - MDOC_Dd] = {
+	{ ARGSFL_NONE, NULL }, /* Dd */
+	{ ARGSFL_NONE, NULL }, /* Dt */
+	{ ARGSFL_NONE, NULL }, /* Os */
+	{ ARGSFL_NONE, NULL }, /* Sh */
+	{ ARGSFL_NONE, NULL }, /* Ss */
+	{ ARGSFL_NONE, NULL }, /* Pp */
+	{ ARGSFL_DELIM, NULL }, /* D1 */
+	{ ARGSFL_DELIM, NULL }, /* Dl */
+	{ ARGSFL_NONE, args_Bd }, /* Bd */
+	{ ARGSFL_NONE, NULL }, /* Ed */
+	{ ARGSFL_NONE, args_Bl }, /* Bl */
+	{ ARGSFL_NONE, NULL }, /* El */
+	{ ARGSFL_NONE, NULL }, /* It */
+	{ ARGSFL_DELIM, NULL }, /* Ad */
+	{ ARGSFL_DELIM, args_An }, /* An */
+	{ ARGSFL_DELIM, NULL }, /* Ap */
+	{ ARGSFL_DELIM, NULL }, /* Ar */
+	{ ARGSFL_DELIM, NULL }, /* Cd */
+	{ ARGSFL_DELIM, NULL }, /* Cm */
+	{ ARGSFL_DELIM, NULL }, /* Dv */
+	{ ARGSFL_DELIM, NULL }, /* Er */
+	{ ARGSFL_DELIM, NULL }, /* Ev */
+	{ ARGSFL_NONE, args_Ex }, /* Ex */
+	{ ARGSFL_DELIM, NULL }, /* Fa */
+	{ ARGSFL_NONE, NULL }, /* Fd */
+	{ ARGSFL_DELIM, NULL }, /* Fl */
+	{ ARGSFL_DELIM, NULL }, /* Fn */
+	{ ARGSFL_DELIM, NULL }, /* Ft */
+	{ ARGSFL_DELIM, NULL }, /* Ic */
+	{ ARGSFL_DELIM, NULL }, /* In */
+	{ ARGSFL_DELIM, NULL }, /* Li */
+	{ ARGSFL_NONE, NULL }, /* Nd */
+	{ ARGSFL_DELIM, NULL }, /* Nm */
+	{ ARGSFL_DELIM, NULL }, /* Op */
+	{ ARGSFL_DELIM, NULL }, /* Ot */
+	{ ARGSFL_DELIM, NULL }, /* Pa */
+	{ ARGSFL_NONE, args_Ex }, /* Rv */
+	{ ARGSFL_DELIM, NULL }, /* St */
+	{ ARGSFL_DELIM, NULL }, /* Va */
+	{ ARGSFL_DELIM, NULL }, /* Vt */
+	{ ARGSFL_DELIM, NULL }, /* Xr */
+	{ ARGSFL_NONE, NULL }, /* %A */
+	{ ARGSFL_NONE, NULL }, /* %B */
+	{ ARGSFL_NONE, NULL }, /* %D */
+	{ ARGSFL_NONE, NULL }, /* %I */
+	{ ARGSFL_NONE, NULL }, /* %J */
+	{ ARGSFL_NONE, NULL }, /* %N */
+	{ ARGSFL_NONE, NULL }, /* %O */
+	{ ARGSFL_NONE, NULL }, /* %P */
+	{ ARGSFL_NONE, NULL }, /* %R */
+	{ ARGSFL_NONE, NULL }, /* %T */
+	{ ARGSFL_NONE, NULL }, /* %V */
+	{ ARGSFL_DELIM, NULL }, /* Ac */
+	{ ARGSFL_NONE, NULL }, /* Ao */
+	{ ARGSFL_DELIM, NULL }, /* Aq */
+	{ ARGSFL_DELIM, NULL }, /* At */
+	{ ARGSFL_DELIM, NULL }, /* Bc */
+	{ ARGSFL_NONE, args_Bf }, /* Bf */
+	{ ARGSFL_NONE, NULL }, /* Bo */
+	{ ARGSFL_DELIM, NULL }, /* Bq */
+	{ ARGSFL_DELIM, NULL }, /* Bsx */
+	{ ARGSFL_DELIM, NULL }, /* Bx */
+	{ ARGSFL_NONE, NULL }, /* Db */
+	{ ARGSFL_DELIM, NULL }, /* Dc */
+	{ ARGSFL_NONE, NULL }, /* Do */
+	{ ARGSFL_DELIM, NULL }, /* Dq */
+	{ ARGSFL_DELIM, NULL }, /* Ec */
+	{ ARGSFL_NONE, NULL }, /* Ef */
+	{ ARGSFL_DELIM, NULL }, /* Em */
+	{ ARGSFL_NONE, NULL }, /* Eo */
+	{ ARGSFL_DELIM, NULL }, /* Fx */
+	{ ARGSFL_DELIM, NULL }, /* Ms */
+	{ ARGSFL_DELIM, NULL }, /* No */
+	{ ARGSFL_DELIM, NULL }, /* Ns */
+	{ ARGSFL_DELIM, NULL }, /* Nx */
+	{ ARGSFL_DELIM, NULL }, /* Ox */
+	{ ARGSFL_DELIM, NULL }, /* Pc */
+	{ ARGSFL_DELIM, NULL }, /* Pf */
+	{ ARGSFL_NONE, NULL }, /* Po */
+	{ ARGSFL_DELIM, NULL }, /* Pq */
+	{ ARGSFL_DELIM, NULL }, /* Qc */
+	{ ARGSFL_DELIM, NULL }, /* Ql */
+	{ ARGSFL_NONE, NULL }, /* Qo */
+	{ ARGSFL_DELIM, NULL }, /* Qq */
+	{ ARGSFL_NONE, NULL }, /* Re */
+	{ ARGSFL_NONE, NULL }, /* Rs */
+	{ ARGSFL_DELIM, NULL }, /* Sc */
+	{ ARGSFL_NONE, NULL }, /* So */
+	{ ARGSFL_DELIM, NULL }, /* Sq */
+	{ ARGSFL_NONE, NULL }, /* Sm */
+	{ ARGSFL_DELIM, NULL }, /* Sx */
+	{ ARGSFL_DELIM, NULL }, /* Sy */
+	{ ARGSFL_DELIM, NULL }, /* Tn */
+	{ ARGSFL_DELIM, NULL }, /* Ux */
+	{ ARGSFL_DELIM, NULL }, /* Xc */
+	{ ARGSFL_NONE, NULL }, /* Xo */
+	{ ARGSFL_NONE, NULL }, /* Fo */
+	{ ARGSFL_DELIM, NULL }, /* Fc */
+	{ ARGSFL_NONE, NULL }, /* Oo */
+	{ ARGSFL_DELIM, NULL }, /* Oc */
+	{ ARGSFL_NONE, args_Bk }, /* Bk */
+	{ ARGSFL_NONE, NULL }, /* Ek */
+	{ ARGSFL_NONE, NULL }, /* Bt */
+	{ ARGSFL_NONE, NULL }, /* Hf */
+	{ ARGSFL_DELIM, NULL }, /* Fr */
+	{ ARGSFL_NONE, NULL }, /* Ud */
+	{ ARGSFL_DELIM, NULL }, /* Lb */
+	{ ARGSFL_NONE, NULL }, /* Lp */
+	{ ARGSFL_DELIM, NULL }, /* Lk */
+	{ ARGSFL_DELIM, NULL }, /* Mt */
+	{ ARGSFL_DELIM, NULL }, /* Brq */
+	{ ARGSFL_NONE, NULL }, /* Bro */
+	{ ARGSFL_DELIM, NULL }, /* Brc */
+	{ ARGSFL_NONE, NULL }, /* %C */
+	{ ARGSFL_NONE, NULL }, /* Es */
+	{ ARGSFL_DELIM, NULL }, /* En */
+	{ ARGSFL_DELIM, NULL }, /* Dx */
+	{ ARGSFL_NONE, NULL }, /* %Q */
+	{ ARGSFL_NONE, NULL }, /* %U */
+	{ ARGSFL_NONE, NULL }, /* Ta */
+};
+static	const struct mdocarg *const mdocargs = __mdocargs - MDOC_Dd;
+
+
+/*
+ * Parse flags and their arguments from the input line.
+ * These come in the form -flag [argument ...].
+ * Some flags take no argument, some one, some multiple.
+ */
+void
+mdoc_argv(struct roff_man *mdoc, int line, enum roff_tok tok,
+	struct mdoc_arg **reta, int *pos, char *buf)
+{
+	struct mdoc_argv	  tmpv;
+	struct mdoc_argv	**retv;
+	const enum mdocargt	 *argtable;
+	char			 *argname;
+	int			  ipos, retc;
+	char			  savechar;
+
+	*reta = NULL;
+
+	/* Which flags does this macro support? */
+
+	assert(tok >= MDOC_Dd && tok < MDOC_MAX);
+	argtable = mdocargs[tok].argvs;
+	if (argtable == NULL)
+		return;
+
+	/* Loop over the flags on the input line. */
+
+	ipos = *pos;
+	while (buf[ipos] == '-') {
+
+		/* Seek to the first unescaped space. */
+
+		for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++)
+			if (buf[ipos] == ' ' && buf[ipos - 1] != '\\')
+				break;
+
+		/*
+		 * We want to nil-terminate the word to look it up.
+		 * But we may not have a flag, in which case we need
+		 * to restore the line as-is.  So keep around the
+		 * stray byte, which we'll reset upon exiting.
+		 */
+
+		if ((savechar = buf[ipos]) != '\0')
+			buf[ipos++] = '\0';
+
+		/*
+		 * Now look up the word as a flag.  Use temporary
+		 * storage that we'll copy into the node's flags.
+		 */
+
+		while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX)
+			if ( ! strcmp(argname, mdoc_argnames[tmpv.arg]))
+				break;
+
+		/* If it isn't a flag, restore the saved byte. */
+
+		if (tmpv.arg == MDOC_ARG_MAX) {
+			if (savechar != '\0')
+				buf[ipos - 1] = savechar;
+			break;
+		}
+
+		/* Read to the next word (the first argument). */
+
+		while (buf[ipos] == ' ')
+			ipos++;
+
+		/* Parse the arguments of the flag. */
+
+		tmpv.line  = line;
+		tmpv.pos   = *pos;
+		tmpv.sz    = 0;
+		tmpv.value = NULL;
+
+		switch (argvflags[tmpv.arg]) {
+		case ARGV_SINGLE:
+			argv_single(mdoc, line, &tmpv, &ipos, buf);
+			break;
+		case ARGV_MULTI:
+			argv_multi(mdoc, line, &tmpv, &ipos, buf);
+			break;
+		case ARGV_NONE:
+			break;
+		}
+
+		/* Append to the return values. */
+
+		if (*reta == NULL)
+			*reta = mandoc_calloc(1, sizeof(**reta));
+
+		retc = ++(*reta)->argc;
+		retv = &(*reta)->argv;
+		*retv = mandoc_reallocarray(*retv, retc, sizeof(**retv));
+		memcpy(*retv + retc - 1, &tmpv, sizeof(**retv));
+
+		/* Prepare for parsing the next flag. */
+
+		*pos = ipos;
+		argtable = mdocargs[tok].argvs;
+	}
+}
+
+void
+mdoc_argv_free(struct mdoc_arg *p)
+{
+	int		 i;
+
+	if (NULL == p)
+		return;
+
+	if (p->refcnt) {
+		--(p->refcnt);
+		if (p->refcnt)
+			return;
+	}
+	assert(p->argc);
+
+	for (i = (int)p->argc - 1; i >= 0; i--)
+		argn_free(p, i);
+
+	free(p->argv);
+	free(p);
+}
+
+static void
+argn_free(struct mdoc_arg *p, int iarg)
+{
+	struct mdoc_argv *arg;
+	int		  j;
+
+	arg = &p->argv[iarg];
+
+	if (arg->sz && arg->value) {
+		for (j = (int)arg->sz - 1; j >= 0; j--)
+			free(arg->value[j]);
+		free(arg->value);
+	}
+
+	for (--p->argc; iarg < (int)p->argc; iarg++)
+		p->argv[iarg] = p->argv[iarg+1];
+}
+
+enum margserr
+mdoc_args(struct roff_man *mdoc, int line, int *pos,
+	char *buf, enum roff_tok tok, char **v)
+{
+	struct roff_node *n;
+	char		 *v_local;
+	enum argsflag	  fl;
+
+	if (v == NULL)
+		v = &v_local;
+	fl = tok == TOKEN_NONE ? ARGSFL_NONE : mdocargs[tok].flags;
+
+	/*
+	 * We know that we're in an `It', so it's reasonable to expect
+	 * us to be sitting in a `Bl'.  Someday this may not be the case
+	 * (if we allow random `It's sitting out there), so provide a
+	 * safe fall-back into the default behaviour.
+	 */
+
+	if (tok == MDOC_It) {
+		for (n = mdoc->last; n != NULL; n = n->parent) {
+			if (n->tok != MDOC_Bl)
+				continue;
+			if (n->norm->Bl.type == LIST_column)
+				fl = ARGSFL_TABSEP;
+			break;
+		}
+	}
+
+	return args(mdoc, line, pos, buf, fl, v);
+}
+
+static enum margserr
+args(struct roff_man *mdoc, int line, int *pos,
+		char *buf, enum argsflag fl, char **v)
+{
+	char		*p;
+	int		 pairs;
+
+	if (buf[*pos] == '\0') {
+		if (mdoc->flags & MDOC_PHRASELIT &&
+		    ! (mdoc->flags & MDOC_PHRASE)) {
+			mandoc_msg(MANDOCERR_ARG_QUOTE,
+			    mdoc->parse, line, *pos, NULL);
+			mdoc->flags &= ~MDOC_PHRASELIT;
+		}
+		return ARGS_EOLN;
+	}
+
+	*v = buf + *pos;
+
+	if (fl == ARGSFL_DELIM && args_checkpunct(buf, *pos))
+		return ARGS_PUNCT;
+
+	/*
+	 * Tabs in `It' lines in `Bl -column' can't be escaped.
+	 * Phrases are reparsed for `Ta' and other macros later.
+	 */
+
+	if (fl == ARGSFL_TABSEP) {
+		if ((p = strchr(*v, '\t')) != NULL) {
+
+			/*
+			 * Words right before and right after
+			 * tab characters are not parsed,
+			 * unless there is a blank in between.
+			 */
+
+			if (p > buf && p[-1] != ' ')
+				mdoc->flags |= MDOC_PHRASEQL;
+			if (p[1] != ' ')
+				mdoc->flags |= MDOC_PHRASEQN;
+
+			/*
+			 * One or more blanks after a tab cause
+			 * one leading blank in the next column.
+			 * So skip all but one of them.
+			 */
+
+			*pos += (int)(p - *v) + 1;
+			while (buf[*pos] == ' ' && buf[*pos + 1] == ' ')
+				(*pos)++;
+
+			/*
+			 * A tab at the end of an input line
+			 * switches to the next column.
+			 */
+
+			if (buf[*pos] == '\0' || buf[*pos + 1] == '\0')
+				mdoc->flags |= MDOC_PHRASEQN;
+		} else {
+			p = strchr(*v, '\0');
+			if (p[-1] == ' ')
+				mandoc_msg(MANDOCERR_SPACE_EOL,
+				    mdoc->parse, line, *pos, NULL);
+			*pos += (int)(p - *v);
+		}
+
+		/* Skip any trailing blank characters. */
+		while (p > *v && p[-1] == ' ' &&
+		    (p - 1 == *v || p[-2] != '\\'))
+			p--;
+		*p = '\0';
+
+		return ARGS_PHRASE;
+	}
+
+	/*
+	 * Process a quoted literal.  A quote begins with a double-quote
+	 * and ends with a double-quote NOT preceded by a double-quote.
+	 * NUL-terminate the literal in place.
+	 * Collapse pairs of quotes inside quoted literals.
+	 * Whitespace is NOT involved in literal termination.
+	 */
+
+	if (mdoc->flags & MDOC_PHRASELIT || buf[*pos] == '\"') {
+		if ( ! (mdoc->flags & MDOC_PHRASELIT))
+			*v = &buf[++(*pos)];
+
+		if (mdoc->flags & MDOC_PHRASE)
+			mdoc->flags |= MDOC_PHRASELIT;
+
+		pairs = 0;
+		for ( ; buf[*pos]; (*pos)++) {
+			/* Move following text left after quoted quotes. */
+			if (pairs)
+				buf[*pos - pairs] = buf[*pos];
+			if ('\"' != buf[*pos])
+				continue;
+			/* Unquoted quotes end quoted args. */
+			if ('\"' != buf[*pos + 1])
+				break;
+			/* Quoted quotes collapse. */
+			pairs++;
+			(*pos)++;
+		}
+		if (pairs)
+			buf[*pos - pairs] = '\0';
+
+		if (buf[*pos] == '\0') {
+			if ( ! (mdoc->flags & MDOC_PHRASE))
+				mandoc_msg(MANDOCERR_ARG_QUOTE,
+				    mdoc->parse, line, *pos, NULL);
+			return ARGS_WORD;
+		}
+
+		mdoc->flags &= ~MDOC_PHRASELIT;
+		buf[(*pos)++] = '\0';
+
+		if ('\0' == buf[*pos])
+			return ARGS_WORD;
+
+		while (' ' == buf[*pos])
+			(*pos)++;
+
+		if ('\0' == buf[*pos])
+			mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
+			    line, *pos, NULL);
+
+		return ARGS_WORD;
+	}
+
+	p = &buf[*pos];
+	*v = mandoc_getarg(mdoc->parse, &p, line, pos);
+
+	/*
+	 * After parsing the last word in this phrase,
+	 * tell lookup() whether or not to interpret it.
+	 */
+
+	if (*p == '\0' && mdoc->flags & MDOC_PHRASEQL) {
+		mdoc->flags &= ~MDOC_PHRASEQL;
+		mdoc->flags |= MDOC_PHRASEQF;
+	}
+	return ARGS_WORD;
+}
+
+/*
+ * Check if the string consists only of space-separated closing
+ * delimiters.  This is a bit of a dance: the first must be a close
+ * delimiter, but it may be followed by middle delimiters.  Arbitrary
+ * whitespace may separate these tokens.
+ */
+static int
+args_checkpunct(const char *buf, int i)
+{
+	int		 j;
+	char		 dbuf[DELIMSZ];
+	enum mdelim	 d;
+
+	/* First token must be a close-delimiter. */
+
+	for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
+		dbuf[j] = buf[i];
+
+	if (DELIMSZ == j)
+		return 0;
+
+	dbuf[j] = '\0';
+	if (DELIM_CLOSE != mdoc_isdelim(dbuf))
+		return 0;
+
+	while (' ' == buf[i])
+		i++;
+
+	/* Remaining must NOT be open/none. */
+
+	while (buf[i]) {
+		j = 0;
+		while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
+			dbuf[j++] = buf[i++];
+
+		if (DELIMSZ == j)
+			return 0;
+
+		dbuf[j] = '\0';
+		d = mdoc_isdelim(dbuf);
+		if (DELIM_NONE == d || DELIM_OPEN == d)
+			return 0;
+
+		while (' ' == buf[i])
+			i++;
+	}
+
+	return '\0' == buf[i];
+}
+
+static void
+argv_multi(struct roff_man *mdoc, int line,
+		struct mdoc_argv *v, int *pos, char *buf)
+{
+	enum margserr	 ac;
+	char		*p;
+
+	for (v->sz = 0; ; v->sz++) {
+		if (buf[*pos] == '-')
+			break;
+		ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
+		if (ac == ARGS_EOLN)
+			break;
+
+		if (v->sz % MULTI_STEP == 0)
+			v->value = mandoc_reallocarray(v->value,
+			    v->sz + MULTI_STEP, sizeof(char *));
+
+		v->value[(int)v->sz] = mandoc_strdup(p);
+	}
+}
+
+static void
+argv_single(struct roff_man *mdoc, int line,
+		struct mdoc_argv *v, int *pos, char *buf)
+{
+	enum margserr	 ac;
+	char		*p;
+
+	ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
+	if (ac == ARGS_EOLN)
+		return;
+
+	v->sz = 1;
+	v->value = mandoc_malloc(sizeof(char *));
+	v->value[0] = mandoc_strdup(p);
+}

Added: vendor/mandoc/dist/mdoc_html.c
===================================================================
--- vendor/mandoc/dist/mdoc_html.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_html.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1842 @@
+/*	$Id: mdoc_html.c,v 1.294 2017/07/15 17:57:51 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "out.h"
+#include "html.h"
+#include "main.h"
+
+#define	INDENT		 5
+
+#define	MDOC_ARGS	  const struct roff_meta *meta, \
+			  struct roff_node *n, \
+			  struct html *h
+
+#ifndef MIN
+#define	MIN(a,b)	((/*CONSTCOND*/(a)<(b))?(a):(b))
+#endif
+
+struct	htmlmdoc {
+	int		(*pre)(MDOC_ARGS);
+	void		(*post)(MDOC_ARGS);
+};
+
+static	char		 *cond_id(const struct roff_node *);
+static	void		  print_mdoc_head(MDOC_ARGS);
+static	void		  print_mdoc_node(MDOC_ARGS);
+static	void		  print_mdoc_nodelist(MDOC_ARGS);
+static	void		  synopsis_pre(struct html *,
+				const struct roff_node *);
+
+static	void		  mdoc_root_post(MDOC_ARGS);
+static	int		  mdoc_root_pre(MDOC_ARGS);
+
+static	void		  mdoc__x_post(MDOC_ARGS);
+static	int		  mdoc__x_pre(MDOC_ARGS);
+static	int		  mdoc_ad_pre(MDOC_ARGS);
+static	int		  mdoc_an_pre(MDOC_ARGS);
+static	int		  mdoc_ap_pre(MDOC_ARGS);
+static	int		  mdoc_ar_pre(MDOC_ARGS);
+static	int		  mdoc_bd_pre(MDOC_ARGS);
+static	int		  mdoc_bf_pre(MDOC_ARGS);
+static	void		  mdoc_bk_post(MDOC_ARGS);
+static	int		  mdoc_bk_pre(MDOC_ARGS);
+static	int		  mdoc_bl_pre(MDOC_ARGS);
+static	int		  mdoc_cd_pre(MDOC_ARGS);
+static	int		  mdoc_cm_pre(MDOC_ARGS);
+static	int		  mdoc_d1_pre(MDOC_ARGS);
+static	int		  mdoc_dv_pre(MDOC_ARGS);
+static	int		  mdoc_fa_pre(MDOC_ARGS);
+static	int		  mdoc_fd_pre(MDOC_ARGS);
+static	int		  mdoc_fl_pre(MDOC_ARGS);
+static	int		  mdoc_fn_pre(MDOC_ARGS);
+static	int		  mdoc_ft_pre(MDOC_ARGS);
+static	int		  mdoc_em_pre(MDOC_ARGS);
+static	void		  mdoc_eo_post(MDOC_ARGS);
+static	int		  mdoc_eo_pre(MDOC_ARGS);
+static	int		  mdoc_er_pre(MDOC_ARGS);
+static	int		  mdoc_ev_pre(MDOC_ARGS);
+static	int		  mdoc_ex_pre(MDOC_ARGS);
+static	void		  mdoc_fo_post(MDOC_ARGS);
+static	int		  mdoc_fo_pre(MDOC_ARGS);
+static	int		  mdoc_ic_pre(MDOC_ARGS);
+static	int		  mdoc_igndelim_pre(MDOC_ARGS);
+static	int		  mdoc_in_pre(MDOC_ARGS);
+static	int		  mdoc_it_pre(MDOC_ARGS);
+static	int		  mdoc_lb_pre(MDOC_ARGS);
+static	int		  mdoc_li_pre(MDOC_ARGS);
+static	int		  mdoc_lk_pre(MDOC_ARGS);
+static	int		  mdoc_mt_pre(MDOC_ARGS);
+static	int		  mdoc_ms_pre(MDOC_ARGS);
+static	int		  mdoc_nd_pre(MDOC_ARGS);
+static	int		  mdoc_nm_pre(MDOC_ARGS);
+static	int		  mdoc_no_pre(MDOC_ARGS);
+static	int		  mdoc_ns_pre(MDOC_ARGS);
+static	int		  mdoc_pa_pre(MDOC_ARGS);
+static	void		  mdoc_pf_post(MDOC_ARGS);
+static	int		  mdoc_pp_pre(MDOC_ARGS);
+static	void		  mdoc_quote_post(MDOC_ARGS);
+static	int		  mdoc_quote_pre(MDOC_ARGS);
+static	int		  mdoc_rs_pre(MDOC_ARGS);
+static	int		  mdoc_sh_pre(MDOC_ARGS);
+static	int		  mdoc_skip_pre(MDOC_ARGS);
+static	int		  mdoc_sm_pre(MDOC_ARGS);
+static	int		  mdoc_ss_pre(MDOC_ARGS);
+static	int		  mdoc_st_pre(MDOC_ARGS);
+static	int		  mdoc_sx_pre(MDOC_ARGS);
+static	int		  mdoc_sy_pre(MDOC_ARGS);
+static	int		  mdoc_va_pre(MDOC_ARGS);
+static	int		  mdoc_vt_pre(MDOC_ARGS);
+static	int		  mdoc_xr_pre(MDOC_ARGS);
+static	int		  mdoc_xx_pre(MDOC_ARGS);
+
+static	const struct htmlmdoc __mdocs[MDOC_MAX - MDOC_Dd] = {
+	{NULL, NULL}, /* Dd */
+	{NULL, NULL}, /* Dt */
+	{NULL, NULL}, /* Os */
+	{mdoc_sh_pre, NULL }, /* Sh */
+	{mdoc_ss_pre, NULL }, /* Ss */
+	{mdoc_pp_pre, NULL}, /* Pp */
+	{mdoc_d1_pre, NULL}, /* D1 */
+	{mdoc_d1_pre, NULL}, /* Dl */
+	{mdoc_bd_pre, NULL}, /* Bd */
+	{NULL, NULL}, /* Ed */
+	{mdoc_bl_pre, NULL}, /* Bl */
+	{NULL, NULL}, /* El */
+	{mdoc_it_pre, NULL}, /* It */
+	{mdoc_ad_pre, NULL}, /* Ad */
+	{mdoc_an_pre, NULL}, /* An */
+	{mdoc_ap_pre, NULL}, /* Ap */
+	{mdoc_ar_pre, NULL}, /* Ar */
+	{mdoc_cd_pre, NULL}, /* Cd */
+	{mdoc_cm_pre, NULL}, /* Cm */
+	{mdoc_dv_pre, NULL}, /* Dv */
+	{mdoc_er_pre, NULL}, /* Er */
+	{mdoc_ev_pre, NULL}, /* Ev */
+	{mdoc_ex_pre, NULL}, /* Ex */
+	{mdoc_fa_pre, NULL}, /* Fa */
+	{mdoc_fd_pre, NULL}, /* Fd */
+	{mdoc_fl_pre, NULL}, /* Fl */
+	{mdoc_fn_pre, NULL}, /* Fn */
+	{mdoc_ft_pre, NULL}, /* Ft */
+	{mdoc_ic_pre, NULL}, /* Ic */
+	{mdoc_in_pre, NULL}, /* In */
+	{mdoc_li_pre, NULL}, /* Li */
+	{mdoc_nd_pre, NULL}, /* Nd */
+	{mdoc_nm_pre, NULL}, /* Nm */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Op */
+	{mdoc_ft_pre, NULL}, /* Ot */
+	{mdoc_pa_pre, NULL}, /* Pa */
+	{mdoc_ex_pre, NULL}, /* Rv */
+	{mdoc_st_pre, NULL}, /* St */
+	{mdoc_va_pre, NULL}, /* Va */
+	{mdoc_vt_pre, NULL}, /* Vt */
+	{mdoc_xr_pre, NULL}, /* Xr */
+	{mdoc__x_pre, mdoc__x_post}, /* %A */
+	{mdoc__x_pre, mdoc__x_post}, /* %B */
+	{mdoc__x_pre, mdoc__x_post}, /* %D */
+	{mdoc__x_pre, mdoc__x_post}, /* %I */
+	{mdoc__x_pre, mdoc__x_post}, /* %J */
+	{mdoc__x_pre, mdoc__x_post}, /* %N */
+	{mdoc__x_pre, mdoc__x_post}, /* %O */
+	{mdoc__x_pre, mdoc__x_post}, /* %P */
+	{mdoc__x_pre, mdoc__x_post}, /* %R */
+	{mdoc__x_pre, mdoc__x_post}, /* %T */
+	{mdoc__x_pre, mdoc__x_post}, /* %V */
+	{NULL, NULL}, /* Ac */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Ao */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Aq */
+	{mdoc_xx_pre, NULL}, /* At */
+	{NULL, NULL}, /* Bc */
+	{mdoc_bf_pre, NULL}, /* Bf */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Bo */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Bq */
+	{mdoc_xx_pre, NULL}, /* Bsx */
+	{mdoc_xx_pre, NULL}, /* Bx */
+	{mdoc_skip_pre, NULL}, /* Db */
+	{NULL, NULL}, /* Dc */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Do */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Dq */
+	{NULL, NULL}, /* Ec */ /* FIXME: no space */
+	{NULL, NULL}, /* Ef */
+	{mdoc_em_pre, NULL}, /* Em */
+	{mdoc_eo_pre, mdoc_eo_post}, /* Eo */
+	{mdoc_xx_pre, NULL}, /* Fx */
+	{mdoc_ms_pre, NULL}, /* Ms */
+	{mdoc_no_pre, NULL}, /* No */
+	{mdoc_ns_pre, NULL}, /* Ns */
+	{mdoc_xx_pre, NULL}, /* Nx */
+	{mdoc_xx_pre, NULL}, /* Ox */
+	{NULL, NULL}, /* Pc */
+	{mdoc_igndelim_pre, mdoc_pf_post}, /* Pf */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Po */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Pq */
+	{NULL, NULL}, /* Qc */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Ql */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Qo */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Qq */
+	{NULL, NULL}, /* Re */
+	{mdoc_rs_pre, NULL}, /* Rs */
+	{NULL, NULL}, /* Sc */
+	{mdoc_quote_pre, mdoc_quote_post}, /* So */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Sq */
+	{mdoc_sm_pre, NULL}, /* Sm */
+	{mdoc_sx_pre, NULL}, /* Sx */
+	{mdoc_sy_pre, NULL}, /* Sy */
+	{NULL, NULL}, /* Tn */
+	{mdoc_xx_pre, NULL}, /* Ux */
+	{NULL, NULL}, /* Xc */
+	{NULL, NULL}, /* Xo */
+	{mdoc_fo_pre, mdoc_fo_post}, /* Fo */
+	{NULL, NULL}, /* Fc */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Oo */
+	{NULL, NULL}, /* Oc */
+	{mdoc_bk_pre, mdoc_bk_post}, /* Bk */
+	{NULL, NULL}, /* Ek */
+	{NULL, NULL}, /* Bt */
+	{NULL, NULL}, /* Hf */
+	{mdoc_em_pre, NULL}, /* Fr */
+	{NULL, NULL}, /* Ud */
+	{mdoc_lb_pre, NULL}, /* Lb */
+	{mdoc_pp_pre, NULL}, /* Lp */
+	{mdoc_lk_pre, NULL}, /* Lk */
+	{mdoc_mt_pre, NULL}, /* Mt */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Brq */
+	{mdoc_quote_pre, mdoc_quote_post}, /* Bro */
+	{NULL, NULL}, /* Brc */
+	{mdoc__x_pre, mdoc__x_post}, /* %C */
+	{mdoc_skip_pre, NULL}, /* Es */
+	{mdoc_quote_pre, mdoc_quote_post}, /* En */
+	{mdoc_xx_pre, NULL}, /* Dx */
+	{mdoc__x_pre, mdoc__x_post}, /* %Q */
+	{mdoc__x_pre, mdoc__x_post}, /* %U */
+	{NULL, NULL}, /* Ta */
+};
+static	const struct htmlmdoc *const mdocs = __mdocs - MDOC_Dd;
+
+
+/*
+ * See the same function in mdoc_term.c for documentation.
+ */
+static void
+synopsis_pre(struct html *h, const struct roff_node *n)
+{
+
+	if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
+		return;
+
+	if (n->prev->tok == n->tok &&
+	    MDOC_Fo != n->tok &&
+	    MDOC_Ft != n->tok &&
+	    MDOC_Fn != n->tok) {
+		print_otag(h, TAG_BR, "");
+		return;
+	}
+
+	switch (n->prev->tok) {
+	case MDOC_Fd:
+	case MDOC_Fn:
+	case MDOC_Fo:
+	case MDOC_In:
+	case MDOC_Vt:
+		print_paragraph(h);
+		break;
+	case MDOC_Ft:
+		if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
+			print_paragraph(h);
+			break;
+		}
+		/* FALLTHROUGH */
+	default:
+		print_otag(h, TAG_BR, "");
+		break;
+	}
+}
+
+void
+html_mdoc(void *arg, const struct roff_man *mdoc)
+{
+	struct html	*h;
+	struct tag	*t;
+
+	h = (struct html *)arg;
+
+	if ((h->oflags & HTML_FRAGMENT) == 0) {
+		print_gen_decls(h);
+		print_otag(h, TAG_HTML, "");
+		t = print_otag(h, TAG_HEAD, "");
+		print_mdoc_head(&mdoc->meta, mdoc->first->child, h);
+		print_tagq(h, t);
+		print_otag(h, TAG_BODY, "");
+	}
+
+	mdoc_root_pre(&mdoc->meta, mdoc->first->child, h);
+	t = print_otag(h, TAG_DIV, "c", "manual-text");
+	print_mdoc_nodelist(&mdoc->meta, mdoc->first->child, h);
+	print_tagq(h, t);
+	mdoc_root_post(&mdoc->meta, mdoc->first->child, h);
+	print_tagq(h, NULL);
+}
+
+static void
+print_mdoc_head(MDOC_ARGS)
+{
+	char	*cp;
+
+	print_gen_head(h);
+
+	if (meta->arch != NULL && meta->msec != NULL)
+		mandoc_asprintf(&cp, "%s(%s) (%s)", meta->title,
+		    meta->msec, meta->arch);
+	else if (meta->msec != NULL)
+		mandoc_asprintf(&cp, "%s(%s)", meta->title, meta->msec);
+	else if (meta->arch != NULL)
+		mandoc_asprintf(&cp, "%s (%s)", meta->title, meta->arch);
+	else
+		cp = mandoc_strdup(meta->title);
+
+	print_otag(h, TAG_TITLE, "");
+	print_text(h, cp);
+	free(cp);
+}
+
+static void
+print_mdoc_nodelist(MDOC_ARGS)
+{
+
+	while (n != NULL) {
+		print_mdoc_node(meta, n, h);
+		n = n->next;
+	}
+}
+
+static void
+print_mdoc_node(MDOC_ARGS)
+{
+	int		 child;
+	struct tag	*t;
+
+	if (n->flags & NODE_NOPRT)
+		return;
+
+	child = 1;
+	t = h->tag;
+	n->flags &= ~NODE_ENDED;
+
+	switch (n->type) {
+	case ROFFT_TEXT:
+		/* No tables in this mode... */
+		assert(NULL == h->tblt);
+
+		/*
+		 * Make sure that if we're in a literal mode already
+		 * (i.e., within a <PRE>) don't print the newline.
+		 */
+		if (*n->string == ' ' && n->flags & NODE_LINE &&
+		    (h->flags & (HTML_LITERAL | HTML_NONEWLINE)) == 0)
+			print_otag(h, TAG_BR, "");
+		if (NODE_DELIMC & n->flags)
+			h->flags |= HTML_NOSPACE;
+		print_text(h, n->string);
+		if (NODE_DELIMO & n->flags)
+			h->flags |= HTML_NOSPACE;
+		return;
+	case ROFFT_EQN:
+		print_eqn(h, n->eqn);
+		break;
+	case ROFFT_TBL:
+		/*
+		 * This will take care of initialising all of the table
+		 * state data for the first table, then tearing it down
+		 * for the last one.
+		 */
+		print_tbl(h, n->span);
+		return;
+	default:
+		/*
+		 * Close out the current table, if it's open, and unset
+		 * the "meta" table state.  This will be reopened on the
+		 * next table element.
+		 */
+		if (h->tblt != NULL) {
+			print_tblclose(h);
+			t = h->tag;
+		}
+		assert(h->tblt == NULL);
+		if (n->tok < ROFF_MAX) {
+			roff_html_pre(h, n);
+			child = 0;
+			break;
+		}
+		assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+		if (mdocs[n->tok].pre != NULL &&
+		    (n->end == ENDBODY_NOT || n->child != NULL))
+			child = (*mdocs[n->tok].pre)(meta, n, h);
+		break;
+	}
+
+	if (h->flags & HTML_KEEP && n->flags & NODE_LINE) {
+		h->flags &= ~HTML_KEEP;
+		h->flags |= HTML_PREKEEP;
+	}
+
+	if (child && n->child)
+		print_mdoc_nodelist(meta, n->child, h);
+
+	print_stagq(h, t);
+
+	switch (n->type) {
+	case ROFFT_EQN:
+		break;
+	default:
+		if (n->tok < ROFF_MAX ||
+		    mdocs[n->tok].post == NULL ||
+		    n->flags & NODE_ENDED)
+			break;
+		(*mdocs[n->tok].post)(meta, n, h);
+		if (n->end != ENDBODY_NOT)
+			n->body->flags |= NODE_ENDED;
+		break;
+	}
+}
+
+static void
+mdoc_root_post(MDOC_ARGS)
+{
+	struct tag	*t, *tt;
+
+	t = print_otag(h, TAG_TABLE, "c", "foot");
+	tt = print_otag(h, TAG_TR, "");
+
+	print_otag(h, TAG_TD, "c", "foot-date");
+	print_text(h, meta->date);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "foot-os");
+	print_text(h, meta->os);
+	print_tagq(h, t);
+}
+
+static int
+mdoc_root_pre(MDOC_ARGS)
+{
+	struct tag	*t, *tt;
+	char		*volume, *title;
+
+	if (NULL == meta->arch)
+		volume = mandoc_strdup(meta->vol);
+	else
+		mandoc_asprintf(&volume, "%s (%s)",
+		    meta->vol, meta->arch);
+
+	if (NULL == meta->msec)
+		title = mandoc_strdup(meta->title);
+	else
+		mandoc_asprintf(&title, "%s(%s)",
+		    meta->title, meta->msec);
+
+	t = print_otag(h, TAG_TABLE, "c", "head");
+	tt = print_otag(h, TAG_TR, "");
+
+	print_otag(h, TAG_TD, "c", "head-ltitle");
+	print_text(h, title);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "head-vol");
+	print_text(h, volume);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "head-rtitle");
+	print_text(h, title);
+	print_tagq(h, t);
+
+	free(title);
+	free(volume);
+	return 1;
+}
+
+static char *
+cond_id(const struct roff_node *n)
+{
+	if (n->child != NULL &&
+	    n->child->type == ROFFT_TEXT &&
+	    (n->prev == NULL ||
+	     (n->prev->type == ROFFT_TEXT &&
+	      strcmp(n->prev->string, "|") == 0)) &&
+	    (n->parent->tok == MDOC_It ||
+	     (n->parent->tok == MDOC_Xo &&
+	      n->parent->parent->prev == NULL &&
+	      n->parent->parent->parent->tok == MDOC_It)))
+		return html_make_id(n);
+	return NULL;
+}
+
+static int
+mdoc_sh_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		id = html_make_id(n);
+		print_otag(h, TAG_H1, "cTi", "Sh", id);
+		if (id != NULL)
+			print_otag(h, TAG_A, "chR", "selflink", id);
+		free(id);
+		break;
+	case ROFFT_BODY:
+		if (n->sec == SEC_AUTHORS)
+			h->flags &= ~(HTML_SPLIT|HTML_NOSPLIT);
+		break;
+	default:
+		break;
+	}
+	return 1;
+}
+
+static int
+mdoc_ss_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	if (n->type != ROFFT_HEAD)
+		return 1;
+
+	id = html_make_id(n);
+	print_otag(h, TAG_H2, "cTi", "Ss", id);
+	if (id != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_fl_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_B, "cTi", "Fl", id);
+	free(id);
+
+	print_text(h, "\\-");
+	if (!(n->child == NULL &&
+	    (n->next == NULL ||
+	     n->next->type == ROFFT_TEXT ||
+	     n->next->flags & NODE_LINE)))
+		h->flags |= HTML_NOSPACE;
+
+	return 1;
+}
+
+static int
+mdoc_cm_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_B, "cTi", "Cm", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_nd_pre(MDOC_ARGS)
+{
+	if (n->type != ROFFT_BODY)
+		return 1;
+
+	/* XXX: this tag in theory can contain block elements. */
+
+	print_text(h, "\\(em");
+	print_otag(h, TAG_SPAN, "cT", "Nd");
+	return 1;
+}
+
+static int
+mdoc_nm_pre(MDOC_ARGS)
+{
+	switch (n->type) {
+	case ROFFT_HEAD:
+		print_otag(h, TAG_TD, "");
+		/* FALLTHROUGH */
+	case ROFFT_ELEM:
+		print_otag(h, TAG_B, "cT", "Nm");
+		return 1;
+	case ROFFT_BODY:
+		print_otag(h, TAG_TD, "");
+		return 1;
+	default:
+		break;
+	}
+	synopsis_pre(h, n);
+	print_otag(h, TAG_TABLE, "c", "Nm");
+	print_otag(h, TAG_TR, "");
+	return 1;
+}
+
+static int
+mdoc_xr_pre(MDOC_ARGS)
+{
+	if (NULL == n->child)
+		return 0;
+
+	if (h->base_man)
+		print_otag(h, TAG_A, "cThM", "Xr",
+		    n->child->string, n->child->next == NULL ?
+		    NULL : n->child->next->string);
+	else
+		print_otag(h, TAG_A, "cT", "Xr");
+
+	n = n->child;
+	print_text(h, n->string);
+
+	if (NULL == (n = n->next))
+		return 0;
+
+	h->flags |= HTML_NOSPACE;
+	print_text(h, "(");
+	h->flags |= HTML_NOSPACE;
+	print_text(h, n->string);
+	h->flags |= HTML_NOSPACE;
+	print_text(h, ")");
+	return 0;
+}
+
+static int
+mdoc_ns_pre(MDOC_ARGS)
+{
+
+	if ( ! (NODE_LINE & n->flags))
+		h->flags |= HTML_NOSPACE;
+	return 1;
+}
+
+static int
+mdoc_ar_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_VAR, "cT", "Ar");
+	return 1;
+}
+
+static int
+mdoc_xx_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_SPAN, "c", "Ux");
+	return 1;
+}
+
+static int
+mdoc_it_pre(MDOC_ARGS)
+{
+	const struct roff_node	*bl;
+	struct tag		*t;
+	const char		*cattr;
+	enum mdoc_list		 type;
+
+	bl = n->parent;
+	while (bl->tok != MDOC_Bl)
+		bl = bl->parent;
+	type = bl->norm->Bl.type;
+
+	switch (type) {
+	case LIST_bullet:
+		cattr = "It-bullet";
+		break;
+	case LIST_dash:
+	case LIST_hyphen:
+		cattr = "It-dash";
+		break;
+	case LIST_item:
+		cattr = "It-item";
+		break;
+	case LIST_enum:
+		cattr = "It-enum";
+		break;
+	case LIST_diag:
+		cattr = "It-diag";
+		break;
+	case LIST_hang:
+		cattr = "It-hang";
+		break;
+	case LIST_inset:
+		cattr = "It-inset";
+		break;
+	case LIST_ohang:
+		cattr = "It-ohang";
+		break;
+	case LIST_tag:
+		cattr = "It-tag";
+		break;
+	case LIST_column:
+		cattr = "It-column";
+		break;
+	default:
+		break;
+	}
+
+	switch (type) {
+	case LIST_bullet:
+	case LIST_dash:
+	case LIST_hyphen:
+	case LIST_item:
+	case LIST_enum:
+		switch (n->type) {
+		case ROFFT_HEAD:
+			return 0;
+		case ROFFT_BODY:
+			print_otag(h, TAG_LI, "c", cattr);
+			break;
+		default:
+			break;
+		}
+		break;
+	case LIST_diag:
+	case LIST_hang:
+	case LIST_inset:
+	case LIST_ohang:
+		switch (n->type) {
+		case ROFFT_HEAD:
+			print_otag(h, TAG_DT, "c", cattr);
+			if (type == LIST_diag)
+				print_otag(h, TAG_B, "c", cattr);
+			break;
+		case ROFFT_BODY:
+			print_otag(h, TAG_DD, "csw*+l", cattr,
+			    bl->norm->Bl.width);
+			break;
+		default:
+			break;
+		}
+		break;
+	case LIST_tag:
+		switch (n->type) {
+		case ROFFT_HEAD:
+			if (h->style != NULL && !bl->norm->Bl.comp &&
+			    (n->parent->prev == NULL ||
+			     n->parent->prev->body == NULL ||
+			     n->parent->prev->body->child != NULL)) {
+				t = print_otag(h, TAG_DT, "csw*+-l",
+				    cattr, bl->norm->Bl.width);
+				print_text(h, "\\ ");
+				print_tagq(h, t);
+				t = print_otag(h, TAG_DD, "c", cattr);
+				print_text(h, "\\ ");
+				print_tagq(h, t);
+			}
+			print_otag(h, TAG_DT, "csw*+-l", cattr,
+			    bl->norm->Bl.width);
+			break;
+		case ROFFT_BODY:
+			if (n->child == NULL) {
+				print_otag(h, TAG_DD, "css?", cattr,
+				    "width", "auto");
+				print_text(h, "\\ ");
+			} else
+				print_otag(h, TAG_DD, "c", cattr);
+			break;
+		default:
+			break;
+		}
+		break;
+	case LIST_column:
+		switch (n->type) {
+		case ROFFT_HEAD:
+			break;
+		case ROFFT_BODY:
+			print_otag(h, TAG_TD, "c", cattr);
+			break;
+		default:
+			print_otag(h, TAG_TR, "c", cattr);
+		}
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static int
+mdoc_bl_pre(MDOC_ARGS)
+{
+	char		 cattr[21];
+	struct tag	*t;
+	struct mdoc_bl	*bl;
+	size_t		 i;
+	enum htmltag	 elemtype;
+
+	bl = &n->norm->Bl;
+
+	switch (n->type) {
+	case ROFFT_BODY:
+		return 1;
+
+	case ROFFT_HEAD:
+		if (bl->type != LIST_column || bl->ncols == 0)
+			return 0;
+
+		/*
+		 * For each column, print out the <COL> tag with our
+		 * suggested width.  The last column gets min-width, as
+		 * in terminal mode it auto-sizes to the width of the
+		 * screen and we want to preserve that behaviour.
+		 */
+
+		t = print_otag(h, TAG_COLGROUP, "");
+		for (i = 0; i < bl->ncols - 1; i++)
+			print_otag(h, TAG_COL, "sw+w", bl->cols[i]);
+		print_otag(h, TAG_COL, "swW", bl->cols[i]);
+		print_tagq(h, t);
+		return 0;
+
+	default:
+		break;
+	}
+
+	switch (bl->type) {
+	case LIST_bullet:
+		elemtype = TAG_UL;
+		(void)strlcpy(cattr, "Bl-bullet", sizeof(cattr));
+		break;
+	case LIST_dash:
+	case LIST_hyphen:
+		elemtype = TAG_UL;
+		(void)strlcpy(cattr, "Bl-dash", sizeof(cattr));
+		break;
+	case LIST_item:
+		elemtype = TAG_UL;
+		(void)strlcpy(cattr, "Bl-item", sizeof(cattr));
+		break;
+	case LIST_enum:
+		elemtype = TAG_OL;
+		(void)strlcpy(cattr, "Bl-enum", sizeof(cattr));
+		break;
+	case LIST_diag:
+		elemtype = TAG_DL;
+		(void)strlcpy(cattr, "Bl-diag", sizeof(cattr));
+		break;
+	case LIST_hang:
+		elemtype = TAG_DL;
+		(void)strlcpy(cattr, "Bl-hang", sizeof(cattr));
+		break;
+	case LIST_inset:
+		elemtype = TAG_DL;
+		(void)strlcpy(cattr, "Bl-inset", sizeof(cattr));
+		break;
+	case LIST_ohang:
+		elemtype = TAG_DL;
+		(void)strlcpy(cattr, "Bl-ohang", sizeof(cattr));
+		break;
+	case LIST_tag:
+		if (bl->offs)
+			print_otag(h, TAG_DIV, "cswl", "Bl-tag", bl->offs);
+		print_otag(h, TAG_DL, "csw*+l", bl->comp ?
+		    "Bl-tag Bl-compact" : "Bl-tag", bl->width);
+		return 1;
+	case LIST_column:
+		elemtype = TAG_TABLE;
+		(void)strlcpy(cattr, "Bl-column", sizeof(cattr));
+		break;
+	default:
+		abort();
+	}
+	if (bl->comp)
+		(void)strlcat(cattr, " Bl-compact", sizeof(cattr));
+	print_otag(h, elemtype, "cswl", cattr, bl->offs);
+	return 1;
+}
+
+static int
+mdoc_ex_pre(MDOC_ARGS)
+{
+	if (n->prev)
+		print_otag(h, TAG_BR, "");
+	return 1;
+}
+
+static int
+mdoc_st_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_SPAN, "cT", "St");
+	return 1;
+}
+
+static int
+mdoc_em_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_I, "cT", "Em");
+	return 1;
+}
+
+static int
+mdoc_d1_pre(MDOC_ARGS)
+{
+	if (n->type != ROFFT_BLOCK)
+		return 1;
+
+	print_otag(h, TAG_DIV, "c", "D1");
+
+	if (n->tok == MDOC_Dl)
+		print_otag(h, TAG_CODE, "c", "Li");
+
+	return 1;
+}
+
+static int
+mdoc_sx_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	id = html_make_id(n);
+	print_otag(h, TAG_A, "cThR", "Sx", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_bd_pre(MDOC_ARGS)
+{
+	int			 comp, offs, sv;
+	struct roff_node	*nn;
+
+	if (n->type == ROFFT_HEAD)
+		return 0;
+
+	if (n->type == ROFFT_BLOCK) {
+		comp = n->norm->Bd.comp;
+		for (nn = n; nn && ! comp; nn = nn->parent) {
+			if (nn->type != ROFFT_BLOCK)
+				continue;
+			if (MDOC_Ss == nn->tok || MDOC_Sh == nn->tok)
+				comp = 1;
+			if (nn->prev)
+				break;
+		}
+		if ( ! comp)
+			print_paragraph(h);
+		return 1;
+	}
+
+	/* Handle the -offset argument. */
+
+	if (n->norm->Bd.offs == NULL ||
+	    ! strcmp(n->norm->Bd.offs, "left"))
+		offs = 0;
+	else if ( ! strcmp(n->norm->Bd.offs, "indent"))
+		offs = INDENT;
+	else if ( ! strcmp(n->norm->Bd.offs, "indent-two"))
+		offs = INDENT * 2;
+	else
+		offs = -1;
+
+	if (offs == -1)
+		print_otag(h, TAG_DIV, "cswl", "Bd", n->norm->Bd.offs);
+	else
+		print_otag(h, TAG_DIV, "cshl", "Bd", offs);
+
+	if (n->norm->Bd.type != DISP_unfilled &&
+	    n->norm->Bd.type != DISP_literal)
+		return 1;
+
+	print_otag(h, TAG_PRE, "c", "Li");
+
+	/* This can be recursive: save & set our literal state. */
+
+	sv = h->flags & HTML_LITERAL;
+	h->flags |= HTML_LITERAL;
+
+	for (nn = n->child; nn; nn = nn->next) {
+		print_mdoc_node(meta, nn, h);
+		/*
+		 * If the printed node flushes its own line, then we
+		 * needn't do it here as well.  This is hacky, but the
+		 * notion of selective eoln whitespace is pretty dumb
+		 * anyway, so don't sweat it.
+		 */
+		switch (nn->tok) {
+		case ROFF_br:
+		case ROFF_sp:
+		case MDOC_Sm:
+		case MDOC_Bl:
+		case MDOC_D1:
+		case MDOC_Dl:
+		case MDOC_Lp:
+		case MDOC_Pp:
+			continue;
+		default:
+			break;
+		}
+		if (h->flags & HTML_NONEWLINE ||
+		    (nn->next && ! (nn->next->flags & NODE_LINE)))
+			continue;
+		else if (nn->next)
+			print_text(h, "\n");
+
+		h->flags |= HTML_NOSPACE;
+	}
+
+	if (0 == sv)
+		h->flags &= ~HTML_LITERAL;
+
+	return 0;
+}
+
+static int
+mdoc_pa_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_I, "cT", "Pa");
+	return 1;
+}
+
+static int
+mdoc_ad_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_I, "c", "Ad");
+	return 1;
+}
+
+static int
+mdoc_an_pre(MDOC_ARGS)
+{
+	if (n->norm->An.auth == AUTH_split) {
+		h->flags &= ~HTML_NOSPLIT;
+		h->flags |= HTML_SPLIT;
+		return 0;
+	}
+	if (n->norm->An.auth == AUTH_nosplit) {
+		h->flags &= ~HTML_SPLIT;
+		h->flags |= HTML_NOSPLIT;
+		return 0;
+	}
+
+	if (h->flags & HTML_SPLIT)
+		print_otag(h, TAG_BR, "");
+
+	if (n->sec == SEC_AUTHORS && ! (h->flags & HTML_NOSPLIT))
+		h->flags |= HTML_SPLIT;
+
+	print_otag(h, TAG_SPAN, "cT", "An");
+	return 1;
+}
+
+static int
+mdoc_cd_pre(MDOC_ARGS)
+{
+	synopsis_pre(h, n);
+	print_otag(h, TAG_B, "cT", "Cd");
+	return 1;
+}
+
+static int
+mdoc_dv_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_CODE, "cTi", "Dv", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_ev_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_CODE, "cTi", "Ev", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_er_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	id = n->sec == SEC_ERRORS &&
+	    (n->parent->tok == MDOC_It ||
+	     (n->parent->tok == MDOC_Bq &&
+	      n->parent->parent->parent->tok == MDOC_It)) ?
+	    html_make_id(n) : NULL;
+
+	if (id != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_CODE, "cTi", "Er", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_fa_pre(MDOC_ARGS)
+{
+	const struct roff_node	*nn;
+	struct tag		*t;
+
+	if (n->parent->tok != MDOC_Fo) {
+		print_otag(h, TAG_VAR, "cT", "Fa");
+		return 1;
+	}
+
+	for (nn = n->child; nn; nn = nn->next) {
+		t = print_otag(h, TAG_VAR, "cT", "Fa");
+		print_text(h, nn->string);
+		print_tagq(h, t);
+		if (nn->next) {
+			h->flags |= HTML_NOSPACE;
+			print_text(h, ",");
+		}
+	}
+
+	if (n->child && n->next && n->next->tok == MDOC_Fa) {
+		h->flags |= HTML_NOSPACE;
+		print_text(h, ",");
+	}
+
+	return 0;
+}
+
+static int
+mdoc_fd_pre(MDOC_ARGS)
+{
+	struct tag	*t;
+	char		*buf, *cp;
+
+	synopsis_pre(h, n);
+
+	if (NULL == (n = n->child))
+		return 0;
+
+	assert(n->type == ROFFT_TEXT);
+
+	if (strcmp(n->string, "#include")) {
+		print_otag(h, TAG_B, "cT", "Fd");
+		return 1;
+	}
+
+	print_otag(h, TAG_B, "cT", "In");
+	print_text(h, n->string);
+
+	if (NULL != (n = n->next)) {
+		assert(n->type == ROFFT_TEXT);
+
+		if (h->base_includes) {
+			cp = n->string;
+			if (*cp == '<' || *cp == '"')
+				cp++;
+			buf = mandoc_strdup(cp);
+			cp = strchr(buf, '\0') - 1;
+			if (cp >= buf && (*cp == '>' || *cp == '"'))
+				*cp = '\0';
+			t = print_otag(h, TAG_A, "cThI", "In", buf);
+			free(buf);
+		} else
+			t = print_otag(h, TAG_A, "cT", "In");
+
+		print_text(h, n->string);
+		print_tagq(h, t);
+
+		n = n->next;
+	}
+
+	for ( ; n; n = n->next) {
+		assert(n->type == ROFFT_TEXT);
+		print_text(h, n->string);
+	}
+
+	return 0;
+}
+
+static int
+mdoc_vt_pre(MDOC_ARGS)
+{
+	if (n->type == ROFFT_BLOCK) {
+		synopsis_pre(h, n);
+		return 1;
+	} else if (n->type == ROFFT_ELEM) {
+		synopsis_pre(h, n);
+	} else if (n->type == ROFFT_HEAD)
+		return 0;
+
+	print_otag(h, TAG_VAR, "cT", "Vt");
+	return 1;
+}
+
+static int
+mdoc_ft_pre(MDOC_ARGS)
+{
+	synopsis_pre(h, n);
+	print_otag(h, TAG_VAR, "cT", "Ft");
+	return 1;
+}
+
+static int
+mdoc_fn_pre(MDOC_ARGS)
+{
+	struct tag	*t;
+	char		 nbuf[BUFSIZ];
+	const char	*sp, *ep;
+	int		 sz, pretty;
+
+	pretty = NODE_SYNPRETTY & n->flags;
+	synopsis_pre(h, n);
+
+	/* Split apart into type and name. */
+	assert(n->child->string);
+	sp = n->child->string;
+
+	ep = strchr(sp, ' ');
+	if (NULL != ep) {
+		t = print_otag(h, TAG_VAR, "cT", "Ft");
+
+		while (ep) {
+			sz = MIN((int)(ep - sp), BUFSIZ - 1);
+			(void)memcpy(nbuf, sp, (size_t)sz);
+			nbuf[sz] = '\0';
+			print_text(h, nbuf);
+			sp = ++ep;
+			ep = strchr(sp, ' ');
+		}
+		print_tagq(h, t);
+	}
+
+	t = print_otag(h, TAG_B, "cT", "Fn");
+
+	if (sp)
+		print_text(h, sp);
+
+	print_tagq(h, t);
+
+	h->flags |= HTML_NOSPACE;
+	print_text(h, "(");
+	h->flags |= HTML_NOSPACE;
+
+	for (n = n->child->next; n; n = n->next) {
+		if (NODE_SYNPRETTY & n->flags)
+			t = print_otag(h, TAG_VAR, "cTss?", "Fa",
+			    "white-space", "nowrap");
+		else
+			t = print_otag(h, TAG_VAR, "cT", "Fa");
+		print_text(h, n->string);
+		print_tagq(h, t);
+		if (n->next) {
+			h->flags |= HTML_NOSPACE;
+			print_text(h, ",");
+		}
+	}
+
+	h->flags |= HTML_NOSPACE;
+	print_text(h, ")");
+
+	if (pretty) {
+		h->flags |= HTML_NOSPACE;
+		print_text(h, ";");
+	}
+
+	return 0;
+}
+
+static int
+mdoc_sm_pre(MDOC_ARGS)
+{
+
+	if (NULL == n->child)
+		h->flags ^= HTML_NONOSPACE;
+	else if (0 == strcmp("on", n->child->string))
+		h->flags &= ~HTML_NONOSPACE;
+	else
+		h->flags |= HTML_NONOSPACE;
+
+	if ( ! (HTML_NONOSPACE & h->flags))
+		h->flags &= ~HTML_NOSPACE;
+
+	return 0;
+}
+
+static int
+mdoc_skip_pre(MDOC_ARGS)
+{
+
+	return 0;
+}
+
+static int
+mdoc_pp_pre(MDOC_ARGS)
+{
+
+	print_paragraph(h);
+	return 0;
+}
+
+static int
+mdoc_lk_pre(MDOC_ARGS)
+{
+	const struct roff_node *link, *descr, *punct;
+	struct tag	*t;
+
+	if ((link = n->child) == NULL)
+		return 0;
+
+	/* Find beginning of trailing punctuation. */
+	punct = n->last;
+	while (punct != link && punct->flags & NODE_DELIMC)
+		punct = punct->prev;
+	punct = punct->next;
+
+	/* Link target and link text. */
+	descr = link->next;
+	if (descr == punct)
+		descr = link;  /* no text */
+	t = print_otag(h, TAG_A, "cTh", "Lk", link->string);
+	do {
+		if (descr->flags & (NODE_DELIMC | NODE_DELIMO))
+			h->flags |= HTML_NOSPACE;
+		print_text(h, descr->string);
+		descr = descr->next;
+	} while (descr != punct);
+	print_tagq(h, t);
+
+	/* Trailing punctuation. */
+	while (punct != NULL) {
+		h->flags |= HTML_NOSPACE;
+		print_text(h, punct->string);
+		punct = punct->next;
+	}
+	return 0;
+}
+
+static int
+mdoc_mt_pre(MDOC_ARGS)
+{
+	struct tag	*t;
+	char		*cp;
+
+	for (n = n->child; n; n = n->next) {
+		assert(n->type == ROFFT_TEXT);
+
+		mandoc_asprintf(&cp, "mailto:%s", n->string);
+		t = print_otag(h, TAG_A, "cTh", "Mt", cp);
+		print_text(h, n->string);
+		print_tagq(h, t);
+		free(cp);
+	}
+
+	return 0;
+}
+
+static int
+mdoc_fo_pre(MDOC_ARGS)
+{
+	struct tag	*t;
+
+	if (n->type == ROFFT_BODY) {
+		h->flags |= HTML_NOSPACE;
+		print_text(h, "(");
+		h->flags |= HTML_NOSPACE;
+		return 1;
+	} else if (n->type == ROFFT_BLOCK) {
+		synopsis_pre(h, n);
+		return 1;
+	}
+
+	if (n->child == NULL)
+		return 0;
+
+	assert(n->child->string);
+	t = print_otag(h, TAG_B, "cT", "Fn");
+	print_text(h, n->child->string);
+	print_tagq(h, t);
+	return 0;
+}
+
+static void
+mdoc_fo_post(MDOC_ARGS)
+{
+
+	if (n->type != ROFFT_BODY)
+		return;
+	h->flags |= HTML_NOSPACE;
+	print_text(h, ")");
+	h->flags |= HTML_NOSPACE;
+	print_text(h, ";");
+}
+
+static int
+mdoc_in_pre(MDOC_ARGS)
+{
+	struct tag	*t;
+
+	synopsis_pre(h, n);
+	print_otag(h, TAG_B, "cT", "In");
+
+	/*
+	 * The first argument of the `In' gets special treatment as
+	 * being a linked value.  Subsequent values are printed
+	 * afterward.  groff does similarly.  This also handles the case
+	 * of no children.
+	 */
+
+	if (NODE_SYNPRETTY & n->flags && NODE_LINE & n->flags)
+		print_text(h, "#include");
+
+	print_text(h, "<");
+	h->flags |= HTML_NOSPACE;
+
+	if (NULL != (n = n->child)) {
+		assert(n->type == ROFFT_TEXT);
+
+		if (h->base_includes)
+			t = print_otag(h, TAG_A, "cThI", "In", n->string);
+		else
+			t = print_otag(h, TAG_A, "cT", "In");
+		print_text(h, n->string);
+		print_tagq(h, t);
+
+		n = n->next;
+	}
+
+	h->flags |= HTML_NOSPACE;
+	print_text(h, ">");
+
+	for ( ; n; n = n->next) {
+		assert(n->type == ROFFT_TEXT);
+		print_text(h, n->string);
+	}
+
+	return 0;
+}
+
+static int
+mdoc_ic_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_B, "cTi", "Ic", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_va_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_VAR, "cT", "Va");
+	return 1;
+}
+
+static int
+mdoc_ap_pre(MDOC_ARGS)
+{
+
+	h->flags |= HTML_NOSPACE;
+	print_text(h, "\\(aq");
+	h->flags |= HTML_NOSPACE;
+	return 1;
+}
+
+static int
+mdoc_bf_pre(MDOC_ARGS)
+{
+	const char	*cattr;
+
+	if (n->type == ROFFT_HEAD)
+		return 0;
+	else if (n->type != ROFFT_BODY)
+		return 1;
+
+	if (FONT_Em == n->norm->Bf.font)
+		cattr = "Em";
+	else if (FONT_Sy == n->norm->Bf.font)
+		cattr = "Sy";
+	else if (FONT_Li == n->norm->Bf.font)
+		cattr = "Li";
+	else
+		cattr = "No";
+
+	/*
+	 * We want this to be inline-formatted, but needs to be div to
+	 * accept block children.
+	 */
+
+	print_otag(h, TAG_DIV, "css?hl", cattr, "display", "inline", 1);
+	return 1;
+}
+
+static int
+mdoc_ms_pre(MDOC_ARGS)
+{
+	char *id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_B, "cTi", "Ms", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_igndelim_pre(MDOC_ARGS)
+{
+
+	h->flags |= HTML_IGNDELIM;
+	return 1;
+}
+
+static void
+mdoc_pf_post(MDOC_ARGS)
+{
+
+	if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
+		h->flags |= HTML_NOSPACE;
+}
+
+static int
+mdoc_rs_pre(MDOC_ARGS)
+{
+	if (n->type != ROFFT_BLOCK)
+		return 1;
+
+	if (n->prev && SEC_SEE_ALSO == n->sec)
+		print_paragraph(h);
+
+	print_otag(h, TAG_CITE, "cT", "Rs");
+	return 1;
+}
+
+static int
+mdoc_no_pre(MDOC_ARGS)
+{
+	char *id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_SPAN, "ci", "No", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_li_pre(MDOC_ARGS)
+{
+	char	*id;
+
+	if ((id = cond_id(n)) != NULL)
+		print_otag(h, TAG_A, "chR", "selflink", id);
+	print_otag(h, TAG_CODE, "ci", "Li", id);
+	free(id);
+	return 1;
+}
+
+static int
+mdoc_sy_pre(MDOC_ARGS)
+{
+	print_otag(h, TAG_B, "cT", "Sy");
+	return 1;
+}
+
+static int
+mdoc_lb_pre(MDOC_ARGS)
+{
+	if (SEC_LIBRARY == n->sec && NODE_LINE & n->flags && n->prev)
+		print_otag(h, TAG_BR, "");
+
+	print_otag(h, TAG_SPAN, "cT", "Lb");
+	return 1;
+}
+
+static int
+mdoc__x_pre(MDOC_ARGS)
+{
+	const char	*cattr;
+	enum htmltag	 t;
+
+	t = TAG_SPAN;
+
+	switch (n->tok) {
+	case MDOC__A:
+		cattr = "RsA";
+		if (n->prev && MDOC__A == n->prev->tok)
+			if (NULL == n->next || MDOC__A != n->next->tok)
+				print_text(h, "and");
+		break;
+	case MDOC__B:
+		t = TAG_I;
+		cattr = "RsB";
+		break;
+	case MDOC__C:
+		cattr = "RsC";
+		break;
+	case MDOC__D:
+		cattr = "RsD";
+		break;
+	case MDOC__I:
+		t = TAG_I;
+		cattr = "RsI";
+		break;
+	case MDOC__J:
+		t = TAG_I;
+		cattr = "RsJ";
+		break;
+	case MDOC__N:
+		cattr = "RsN";
+		break;
+	case MDOC__O:
+		cattr = "RsO";
+		break;
+	case MDOC__P:
+		cattr = "RsP";
+		break;
+	case MDOC__Q:
+		cattr = "RsQ";
+		break;
+	case MDOC__R:
+		cattr = "RsR";
+		break;
+	case MDOC__T:
+		cattr = "RsT";
+		break;
+	case MDOC__U:
+		print_otag(h, TAG_A, "ch", "RsU", n->child->string);
+		return 1;
+	case MDOC__V:
+		cattr = "RsV";
+		break;
+	default:
+		abort();
+	}
+
+	print_otag(h, t, "c", cattr);
+	return 1;
+}
+
+static void
+mdoc__x_post(MDOC_ARGS)
+{
+
+	if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
+		if (NULL == n->next->next || MDOC__A != n->next->next->tok)
+			if (NULL == n->prev || MDOC__A != n->prev->tok)
+				return;
+
+	/* TODO: %U */
+
+	if (NULL == n->parent || MDOC_Rs != n->parent->tok)
+		return;
+
+	h->flags |= HTML_NOSPACE;
+	print_text(h, n->next ? "," : ".");
+}
+
+static int
+mdoc_bk_pre(MDOC_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		break;
+	case ROFFT_HEAD:
+		return 0;
+	case ROFFT_BODY:
+		if (n->parent->args != NULL || n->prev->child == NULL)
+			h->flags |= HTML_PREKEEP;
+		break;
+	default:
+		abort();
+	}
+
+	return 1;
+}
+
+static void
+mdoc_bk_post(MDOC_ARGS)
+{
+
+	if (n->type == ROFFT_BODY)
+		h->flags &= ~(HTML_KEEP | HTML_PREKEEP);
+}
+
+static int
+mdoc_quote_pre(MDOC_ARGS)
+{
+	if (n->type != ROFFT_BODY)
+		return 1;
+
+	switch (n->tok) {
+	case MDOC_Ao:
+	case MDOC_Aq:
+		print_text(h, n->child != NULL && n->child->next == NULL &&
+		    n->child->tok == MDOC_Mt ?  "<" : "\\(la");
+		break;
+	case MDOC_Bro:
+	case MDOC_Brq:
+		print_text(h, "\\(lC");
+		break;
+	case MDOC_Bo:
+	case MDOC_Bq:
+		print_text(h, "\\(lB");
+		break;
+	case MDOC_Oo:
+	case MDOC_Op:
+		print_text(h, "\\(lB");
+		h->flags |= HTML_NOSPACE;
+		print_otag(h, TAG_SPAN, "c", "Op");
+		break;
+	case MDOC_En:
+		if (NULL == n->norm->Es ||
+		    NULL == n->norm->Es->child)
+			return 1;
+		print_text(h, n->norm->Es->child->string);
+		break;
+	case MDOC_Do:
+	case MDOC_Dq:
+	case MDOC_Qo:
+	case MDOC_Qq:
+		print_text(h, "\\(lq");
+		break;
+	case MDOC_Po:
+	case MDOC_Pq:
+		print_text(h, "(");
+		break;
+	case MDOC_Ql:
+		print_text(h, "\\(oq");
+		h->flags |= HTML_NOSPACE;
+		print_otag(h, TAG_CODE, "c", "Li");
+		break;
+	case MDOC_So:
+	case MDOC_Sq:
+		print_text(h, "\\(oq");
+		break;
+	default:
+		abort();
+	}
+
+	h->flags |= HTML_NOSPACE;
+	return 1;
+}
+
+static void
+mdoc_quote_post(MDOC_ARGS)
+{
+
+	if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
+		return;
+
+	h->flags |= HTML_NOSPACE;
+
+	switch (n->tok) {
+	case MDOC_Ao:
+	case MDOC_Aq:
+		print_text(h, n->child != NULL && n->child->next == NULL &&
+		    n->child->tok == MDOC_Mt ?  ">" : "\\(ra");
+		break;
+	case MDOC_Bro:
+	case MDOC_Brq:
+		print_text(h, "\\(rC");
+		break;
+	case MDOC_Oo:
+	case MDOC_Op:
+	case MDOC_Bo:
+	case MDOC_Bq:
+		print_text(h, "\\(rB");
+		break;
+	case MDOC_En:
+		if (n->norm->Es == NULL ||
+		    n->norm->Es->child == NULL ||
+		    n->norm->Es->child->next == NULL)
+			h->flags &= ~HTML_NOSPACE;
+		else
+			print_text(h, n->norm->Es->child->next->string);
+		break;
+	case MDOC_Qo:
+	case MDOC_Qq:
+	case MDOC_Do:
+	case MDOC_Dq:
+		print_text(h, "\\(rq");
+		break;
+	case MDOC_Po:
+	case MDOC_Pq:
+		print_text(h, ")");
+		break;
+	case MDOC_Ql:
+	case MDOC_So:
+	case MDOC_Sq:
+		print_text(h, "\\(cq");
+		break;
+	default:
+		abort();
+	}
+}
+
+static int
+mdoc_eo_pre(MDOC_ARGS)
+{
+
+	if (n->type != ROFFT_BODY)
+		return 1;
+
+	if (n->end == ENDBODY_NOT &&
+	    n->parent->head->child == NULL &&
+	    n->child != NULL &&
+	    n->child->end != ENDBODY_NOT)
+		print_text(h, "\\&");
+	else if (n->end != ENDBODY_NOT ? n->child != NULL :
+	    n->parent->head->child != NULL && (n->child != NULL ||
+	    (n->parent->tail != NULL && n->parent->tail->child != NULL)))
+		h->flags |= HTML_NOSPACE;
+	return 1;
+}
+
+static void
+mdoc_eo_post(MDOC_ARGS)
+{
+	int	 body, tail;
+
+	if (n->type != ROFFT_BODY)
+		return;
+
+	if (n->end != ENDBODY_NOT) {
+		h->flags &= ~HTML_NOSPACE;
+		return;
+	}
+
+	body = n->child != NULL || n->parent->head->child != NULL;
+	tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
+
+	if (body && tail)
+		h->flags |= HTML_NOSPACE;
+	else if ( ! tail)
+		h->flags &= ~HTML_NOSPACE;
+}

Added: vendor/mandoc/dist/mdoc_macro.c
===================================================================
--- vendor/mandoc/dist/mdoc_macro.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_macro.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1505 @@
+/*	$Id: mdoc_macro.c,v 1.224 2017/05/30 16:22:03 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libmdoc.h"
+
+static	void		blk_full(MACRO_PROT_ARGS);
+static	void		blk_exp_close(MACRO_PROT_ARGS);
+static	void		blk_part_exp(MACRO_PROT_ARGS);
+static	void		blk_part_imp(MACRO_PROT_ARGS);
+static	void		ctx_synopsis(MACRO_PROT_ARGS);
+static	void		in_line_eoln(MACRO_PROT_ARGS);
+static	void		in_line_argn(MACRO_PROT_ARGS);
+static	void		in_line(MACRO_PROT_ARGS);
+static	void		phrase_ta(MACRO_PROT_ARGS);
+
+static	void		append_delims(struct roff_man *, int, int *, char *);
+static	void		dword(struct roff_man *, int, int, const char *,
+				enum mdelim, int);
+static	int		find_pending(struct roff_man *, enum roff_tok,
+				int, int, struct roff_node *);
+static	int		lookup(struct roff_man *, int, int, int, const char *);
+static	int		macro_or_word(MACRO_PROT_ARGS, int);
+static	void		break_intermediate(struct roff_node *,
+				struct roff_node *);
+static	int		parse_rest(struct roff_man *, enum roff_tok,
+				int, int *, char *);
+static	enum roff_tok	rew_alt(enum roff_tok);
+static	void		rew_elem(struct roff_man *, enum roff_tok);
+static	void		rew_last(struct roff_man *, const struct roff_node *);
+static	void		rew_pending(struct roff_man *,
+				const struct roff_node *);
+
+const	struct mdoc_macro __mdoc_macros[MDOC_MAX - MDOC_Dd] = {
+	{ in_line_eoln, MDOC_PROLOGUE }, /* Dd */
+	{ in_line_eoln, MDOC_PROLOGUE }, /* Dt */
+	{ in_line_eoln, MDOC_PROLOGUE }, /* Os */
+	{ blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
+	{ blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
+	{ in_line_eoln, 0 }, /* Pp */
+	{ blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
+	{ blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
+	{ blk_full, MDOC_EXPLICIT }, /* Bd */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
+	{ blk_full, MDOC_EXPLICIT }, /* Bl */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
+	{ blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_IGNDELIM | MDOC_JOIN }, /* Ap */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
+	{ in_line_eoln, 0 }, /* Ex */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
+	{ in_line_eoln, 0 }, /* Fd */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
+	{ blk_full, MDOC_JOIN }, /* Nd */
+	{ ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
+	{ in_line_eoln, 0 }, /* Rv */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
+	{ ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
+	{ in_line_eoln, MDOC_JOIN }, /* %A */
+	{ in_line_eoln, MDOC_JOIN }, /* %B */
+	{ in_line_eoln, MDOC_JOIN }, /* %D */
+	{ in_line_eoln, MDOC_JOIN }, /* %I */
+	{ in_line_eoln, MDOC_JOIN }, /* %J */
+	{ in_line_eoln, 0 }, /* %N */
+	{ in_line_eoln, MDOC_JOIN }, /* %O */
+	{ in_line_eoln, 0 }, /* %P */
+	{ in_line_eoln, MDOC_JOIN }, /* %R */
+	{ in_line_eoln, MDOC_JOIN }, /* %T */
+	{ in_line_eoln, 0 }, /* %V */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
+	{ blk_full, MDOC_EXPLICIT }, /* Bf */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
+	{ in_line_eoln, 0 }, /* Db */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
+	{ blk_full, MDOC_EXPLICIT }, /* Rs */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* So */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
+	{ in_line_argn, 0 }, /* Sm */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
+	{ blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
+	{ blk_full, MDOC_EXPLICIT }, /* Bk */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
+	{ in_line_eoln, 0 }, /* Bt */
+	{ in_line_eoln, 0 }, /* Hf */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
+	{ in_line_eoln, 0 }, /* Ud */
+	{ in_line, 0 }, /* Lb */
+	{ in_line_eoln, 0 }, /* Lp */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
+	{ in_line_eoln, MDOC_JOIN }, /* %C */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
+	{ in_line_eoln, MDOC_JOIN }, /* %Q */
+	{ in_line_eoln, 0 }, /* %U */
+	{ phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
+};
+const	struct mdoc_macro *const mdoc_macros = __mdoc_macros - MDOC_Dd;
+
+
+/*
+ * This is called at the end of parsing.  It must traverse up the tree,
+ * closing out open [implicit] scopes.  Obviously, open explicit scopes
+ * are errors.
+ */
+void
+mdoc_endparse(struct roff_man *mdoc)
+{
+	struct roff_node *n;
+
+	/* Scan for open explicit scopes. */
+
+	n = mdoc->last->flags & NODE_VALID ?
+	    mdoc->last->parent : mdoc->last;
+
+	for ( ; n; n = n->parent)
+		if (n->type == ROFFT_BLOCK &&
+		    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
+			mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
+			    n->line, n->pos, roff_name[n->tok]);
+
+	/* Rewind to the first. */
+
+	rew_last(mdoc, mdoc->first);
+	mdoc_state_reset(mdoc);
+}
+
+/*
+ * Look up the macro at *p called by "from",
+ * or as a line macro if from == TOKEN_NONE.
+ */
+static int
+lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
+{
+	enum roff_tok	 res;
+
+	if (mdoc->flags & MDOC_PHRASEQF) {
+		mdoc->flags &= ~MDOC_PHRASEQF;
+		return TOKEN_NONE;
+	}
+	if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
+		res = roffhash_find(mdoc->mdocmac, p, 0);
+		if (res != TOKEN_NONE) {
+			if (mdoc_macros[res].flags & MDOC_CALLABLE)
+				return res;
+			mandoc_msg(MANDOCERR_MACRO_CALL,
+			    mdoc->parse, line, ppos, p);
+		}
+	}
+	return TOKEN_NONE;
+}
+
+/*
+ * Rewind up to and including a specific node.
+ */
+static void
+rew_last(struct roff_man *mdoc, const struct roff_node *to)
+{
+
+	if (to->flags & NODE_VALID)
+		return;
+
+	while (mdoc->last != to) {
+		mdoc_state(mdoc, mdoc->last);
+		mdoc->last->flags |= NODE_VALID | NODE_ENDED;
+		mdoc->last = mdoc->last->parent;
+	}
+	mdoc_state(mdoc, mdoc->last);
+	mdoc->last->flags |= NODE_VALID | NODE_ENDED;
+	mdoc->next = ROFF_NEXT_SIBLING;
+}
+
+/*
+ * Rewind up to a specific block, including all blocks that broke it.
+ */
+static void
+rew_pending(struct roff_man *mdoc, const struct roff_node *n)
+{
+
+	for (;;) {
+		rew_last(mdoc, n);
+
+		if (mdoc->last == n) {
+			switch (n->type) {
+			case ROFFT_HEAD:
+				roff_body_alloc(mdoc, n->line, n->pos,
+				    n->tok);
+				break;
+			case ROFFT_BLOCK:
+				break;
+			default:
+				return;
+			}
+			if ( ! (n->flags & NODE_BROKEN))
+				return;
+		} else
+			n = mdoc->last;
+
+		for (;;) {
+			if ((n = n->parent) == NULL)
+				return;
+
+			if (n->type == ROFFT_BLOCK ||
+			    n->type == ROFFT_HEAD) {
+				if (n->flags & NODE_ENDED)
+					break;
+				else
+					return;
+			}
+		}
+	}
+}
+
+/*
+ * For a block closing macro, return the corresponding opening one.
+ * Otherwise, return the macro itself.
+ */
+static enum roff_tok
+rew_alt(enum roff_tok tok)
+{
+	switch (tok) {
+	case MDOC_Ac:
+		return MDOC_Ao;
+	case MDOC_Bc:
+		return MDOC_Bo;
+	case MDOC_Brc:
+		return MDOC_Bro;
+	case MDOC_Dc:
+		return MDOC_Do;
+	case MDOC_Ec:
+		return MDOC_Eo;
+	case MDOC_Ed:
+		return MDOC_Bd;
+	case MDOC_Ef:
+		return MDOC_Bf;
+	case MDOC_Ek:
+		return MDOC_Bk;
+	case MDOC_El:
+		return MDOC_Bl;
+	case MDOC_Fc:
+		return MDOC_Fo;
+	case MDOC_Oc:
+		return MDOC_Oo;
+	case MDOC_Pc:
+		return MDOC_Po;
+	case MDOC_Qc:
+		return MDOC_Qo;
+	case MDOC_Re:
+		return MDOC_Rs;
+	case MDOC_Sc:
+		return MDOC_So;
+	case MDOC_Xc:
+		return MDOC_Xo;
+	default:
+		return tok;
+	}
+}
+
+static void
+rew_elem(struct roff_man *mdoc, enum roff_tok tok)
+{
+	struct roff_node *n;
+
+	n = mdoc->last;
+	if (n->type != ROFFT_ELEM)
+		n = n->parent;
+	assert(n->type == ROFFT_ELEM);
+	assert(tok == n->tok);
+	rew_last(mdoc, n);
+}
+
+static void
+break_intermediate(struct roff_node *n, struct roff_node *breaker)
+{
+	if (n != breaker &&
+	    n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
+	    (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
+		n = n->parent;
+	while (n != breaker) {
+		if ( ! (n->flags & NODE_VALID))
+			n->flags |= NODE_BROKEN;
+		n = n->parent;
+	}
+}
+
+/*
+ * If there is an open sub-block of the target requiring
+ * explicit close-out, postpone closing out the target until
+ * the rew_pending() call closing out the sub-block.
+ */
+static int
+find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
+	struct roff_node *target)
+{
+	struct roff_node	*n;
+	int			 irc;
+
+	if (target->flags & NODE_VALID)
+		return 0;
+
+	irc = 0;
+	for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
+		if (n->flags & NODE_ENDED)
+			continue;
+		if (n->type == ROFFT_BLOCK &&
+		    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
+			irc = 1;
+			break_intermediate(mdoc->last, target);
+			if (target->type == ROFFT_HEAD)
+				target->flags |= NODE_ENDED;
+			else if ( ! (target->flags & NODE_ENDED)) {
+				mandoc_vmsg(MANDOCERR_BLK_NEST,
+				    mdoc->parse, line, ppos,
+				    "%s breaks %s", roff_name[tok],
+				    roff_name[n->tok]);
+				mdoc_endbody_alloc(mdoc, line, ppos,
+				    tok, target);
+			}
+		}
+	}
+	return irc;
+}
+
+/*
+ * Allocate a word and check whether it's punctuation or not.
+ * Punctuation consists of those tokens found in mdoc_isdelim().
+ */
+static void
+dword(struct roff_man *mdoc, int line, int col, const char *p,
+		enum mdelim d, int may_append)
+{
+
+	if (d == DELIM_MAX)
+		d = mdoc_isdelim(p);
+
+	if (may_append &&
+	    ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
+	    d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
+	    mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
+		roff_word_append(mdoc, p);
+		return;
+	}
+
+	roff_word_alloc(mdoc, line, col, p);
+
+	/*
+	 * If the word consists of a bare delimiter,
+	 * flag the new node accordingly,
+	 * unless doing so was vetoed by the invoking macro.
+	 * Always clear the veto, it is only valid for one word.
+	 */
+
+	if (d == DELIM_OPEN)
+		mdoc->last->flags |= NODE_DELIMO;
+	else if (d == DELIM_CLOSE &&
+	    ! (mdoc->flags & MDOC_NODELIMC) &&
+	    mdoc->last->parent->tok != MDOC_Fd)
+		mdoc->last->flags |= NODE_DELIMC;
+	mdoc->flags &= ~MDOC_NODELIMC;
+}
+
+static void
+append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
+{
+	char		*p;
+	int		 la;
+
+	if (buf[*pos] == '\0')
+		return;
+
+	for (;;) {
+		la = *pos;
+		if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
+		    ARGS_EOLN)
+			break;
+		dword(mdoc, line, la, p, DELIM_MAX, 1);
+
+		/*
+		 * If we encounter end-of-sentence symbols, then trigger
+		 * the double-space.
+		 *
+		 * XXX: it's easy to allow this to propagate outward to
+		 * the last symbol, such that `. )' will cause the
+		 * correct double-spacing.  However, (1) groff isn't
+		 * smart enough to do this and (2) it would require
+		 * knowing which symbols break this behaviour, for
+		 * example, `.  ;' shouldn't propagate the double-space.
+		 */
+
+		if (mandoc_eos(p, strlen(p)))
+			mdoc->last->flags |= NODE_EOS;
+	}
+}
+
+/*
+ * Parse one word.
+ * If it is a macro, call it and return 1.
+ * Otherwise, allocate it and return 0.
+ */
+static int
+macro_or_word(MACRO_PROT_ARGS, int parsed)
+{
+	char		*p;
+	int		 ntok;
+
+	p = buf + ppos;
+	ntok = TOKEN_NONE;
+	if (*p == '"')
+		p++;
+	else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
+		ntok = lookup(mdoc, tok, line, ppos, p);
+
+	if (ntok == TOKEN_NONE) {
+		dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
+		    mdoc_macros[tok].flags & MDOC_JOIN);
+		return 0;
+	} else {
+		if (tok != TOKEN_NONE &&
+		    mdoc_macros[tok].fp == in_line_eoln)
+			rew_elem(mdoc, tok);
+		mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
+		if (tok == TOKEN_NONE)
+			append_delims(mdoc, line, pos, buf);
+		return 1;
+	}
+}
+
+/*
+ * Close out block partial/full explicit.
+ */
+static void
+blk_exp_close(MACRO_PROT_ARGS)
+{
+	struct roff_node *body;		/* Our own body. */
+	struct roff_node *endbody;	/* Our own end marker. */
+	struct roff_node *itblk;	/* An It block starting later. */
+	struct roff_node *later;	/* A sub-block starting later. */
+	struct roff_node *n;		/* Search back to our block. */
+	struct roff_node *target;	/* For find_pending(). */
+
+	int		 j, lastarg, maxargs, nl, pending;
+	enum margserr	 ac;
+	enum roff_tok	 atok, ntok;
+	char		*p;
+
+	nl = MDOC_NEWLINE & mdoc->flags;
+
+	switch (tok) {
+	case MDOC_Ec:
+		maxargs = 1;
+		break;
+	case MDOC_Ek:
+		mdoc->flags &= ~MDOC_KEEP;
+		/* FALLTHROUGH */
+	default:
+		maxargs = 0;
+		break;
+	}
+
+	/* Search backwards for the beginning of our own body. */
+
+	atok = rew_alt(tok);
+	body = NULL;
+	for (n = mdoc->last; n; n = n->parent) {
+		if (n->flags & NODE_ENDED || n->tok != atok ||
+		    n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
+			continue;
+		body = n;
+		break;
+	}
+
+	/*
+	 * Search backwards for beginnings of blocks,
+	 * both of our own and of pending sub-blocks.
+	 */
+
+	endbody = itblk = later = NULL;
+	for (n = mdoc->last; n; n = n->parent) {
+		if (n->flags & NODE_ENDED)
+			continue;
+
+		/*
+		 * Mismatching end macros can never break anything
+		 * and we only care about the breaking of BLOCKs.
+		 */
+
+		if (body == NULL || n->type != ROFFT_BLOCK)
+			continue;
+
+		/*
+		 * SYNOPSIS name blocks can not be broken themselves,
+		 * but they do get broken together with a broken child.
+		 */
+
+		if (n->tok == MDOC_Nm) {
+			if (later != NULL)
+				n->flags |= NODE_BROKEN | NODE_ENDED;
+			continue;
+		}
+
+		if (n->tok == MDOC_It) {
+			itblk = n;
+			continue;
+		}
+
+		if (atok == n->tok) {
+
+			/*
+			 * Found the start of our own block.
+			 * When there is no pending sub block,
+			 * just proceed to closing out.
+			 */
+
+			if (later == NULL ||
+			    (tok == MDOC_El && itblk == NULL))
+				break;
+
+			/*
+			 * When there is a pending sub block, postpone
+			 * closing out the current block until the
+			 * rew_pending() closing out the sub-block.
+			 * Mark the place where the formatting - but not
+			 * the scope - of the current block ends.
+			 */
+
+			mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
+			    line, ppos, "%s breaks %s",
+			    roff_name[atok], roff_name[later->tok]);
+
+			endbody = mdoc_endbody_alloc(mdoc, line, ppos,
+			    atok, body);
+
+			if (tok == MDOC_El)
+				itblk->flags |= NODE_ENDED | NODE_BROKEN;
+
+			/*
+			 * If a block closing macro taking arguments
+			 * breaks another block, put the arguments
+			 * into the end marker.
+			 */
+
+			if (maxargs)
+				mdoc->next = ROFF_NEXT_CHILD;
+			break;
+		}
+
+		/*
+		 * Explicit blocks close out description lines, but
+		 * even those can get broken together with a child.
+		 */
+
+		if (n->tok == MDOC_Nd) {
+			if (later != NULL)
+				n->flags |= NODE_BROKEN | NODE_ENDED;
+			else
+				rew_last(mdoc, n);
+			continue;
+		}
+
+		/* Breaking an open sub block. */
+
+		break_intermediate(mdoc->last, body);
+		n->flags |= NODE_BROKEN;
+		if (later == NULL)
+			later = n;
+	}
+
+	if (body == NULL) {
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
+		    line, ppos, roff_name[tok]);
+		if (maxargs && endbody == NULL) {
+			/*
+			 * Stray .Ec without previous .Eo:
+			 * Break the output line, keep the arguments.
+			 */
+			roff_elem_alloc(mdoc, line, ppos, ROFF_br);
+			rew_elem(mdoc, ROFF_br);
+		}
+	} else if (endbody == NULL) {
+		rew_last(mdoc, body);
+		if (maxargs)
+			mdoc_tail_alloc(mdoc, line, ppos, atok);
+	}
+
+	if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
+		if (buf[*pos] != '\0')
+			mandoc_vmsg(MANDOCERR_ARG_SKIP,
+			    mdoc->parse, line, ppos,
+			    "%s %s", roff_name[tok],
+			    buf + *pos);
+		if (endbody == NULL && n != NULL)
+			rew_pending(mdoc, n);
+		return;
+	}
+
+	if (endbody != NULL)
+		n = endbody;
+
+	ntok = TOKEN_NONE;
+	for (j = 0; ; j++) {
+		lastarg = *pos;
+
+		if (j == maxargs && n != NULL)
+			rew_last(mdoc, n);
+
+		ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
+		if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
+			break;
+
+		ntok = lookup(mdoc, tok, line, lastarg, p);
+
+		if (ntok == TOKEN_NONE) {
+			dword(mdoc, line, lastarg, p, DELIM_MAX,
+			    MDOC_JOIN & mdoc_macros[tok].flags);
+			continue;
+		}
+
+		if (n != NULL)
+			rew_last(mdoc, n);
+		mdoc->flags &= ~MDOC_NEWLINE;
+		mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
+		break;
+	}
+
+	if (n != NULL) {
+		pending = 0;
+		if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
+			target = n;
+			do
+				target = target->parent;
+			while ( ! (target->flags & NODE_ENDED));
+			pending = find_pending(mdoc, ntok, line, ppos, target);
+		}
+		if ( ! pending)
+			rew_pending(mdoc, n);
+	}
+	if (nl)
+		append_delims(mdoc, line, pos, buf);
+}
+
+static void
+in_line(MACRO_PROT_ARGS)
+{
+	int		 la, scope, cnt, firstarg, mayopen, nc, nl;
+	enum roff_tok	 ntok;
+	enum margserr	 ac;
+	enum mdelim	 d;
+	struct mdoc_arg	*arg;
+	char		*p;
+
+	nl = MDOC_NEWLINE & mdoc->flags;
+
+	/*
+	 * Whether we allow ignored elements (those without content,
+	 * usually because of reserved words) to squeak by.
+	 */
+
+	switch (tok) {
+	case MDOC_An:
+	case MDOC_Ar:
+	case MDOC_Fl:
+	case MDOC_Mt:
+	case MDOC_Nm:
+	case MDOC_Pa:
+		nc = 1;
+		break;
+	default:
+		nc = 0;
+		break;
+	}
+
+	mdoc_argv(mdoc, line, tok, &arg, pos, buf);
+
+	d = DELIM_NONE;
+	firstarg = 1;
+	mayopen = 1;
+	for (cnt = scope = 0;; ) {
+		la = *pos;
+		ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
+
+		/*
+		 * At the end of a macro line,
+		 * opening delimiters do not suppress spacing.
+		 */
+
+		if (ac == ARGS_EOLN) {
+			if (d == DELIM_OPEN)
+				mdoc->last->flags &= ~NODE_DELIMO;
+			break;
+		}
+
+		/*
+		 * The rest of the macro line is only punctuation,
+		 * to be handled by append_delims().
+		 * If there were no other arguments,
+		 * do not allow the first one to suppress spacing,
+		 * even if it turns out to be a closing one.
+		 */
+
+		if (ac == ARGS_PUNCT) {
+			if (cnt == 0 && (nc == 0 || tok == MDOC_An))
+				mdoc->flags |= MDOC_NODELIMC;
+			break;
+		}
+
+		ntok = (tok == MDOC_Fn && !cnt) ?
+		    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
+
+		/*
+		 * In this case, we've located a submacro and must
+		 * execute it.  Close out scope, if open.  If no
+		 * elements have been generated, either create one (nc)
+		 * or raise a warning.
+		 */
+
+		if (ntok != TOKEN_NONE) {
+			if (scope)
+				rew_elem(mdoc, tok);
+			if (nc && ! cnt) {
+				mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
+				rew_last(mdoc, mdoc->last);
+			} else if ( ! nc && ! cnt) {
+				mdoc_argv_free(arg);
+				mandoc_msg(MANDOCERR_MACRO_EMPTY,
+				    mdoc->parse, line, ppos,
+				    roff_name[tok]);
+			}
+			mdoc_macro(mdoc, ntok, line, la, pos, buf);
+			if (nl)
+				append_delims(mdoc, line, pos, buf);
+			return;
+		}
+
+		/*
+		 * Handle punctuation.  Set up our scope, if a word;
+		 * rewind the scope, if a delimiter; then append the word.
+		 */
+
+		if ((d = mdoc_isdelim(p)) != DELIM_NONE) {
+			/*
+			 * If we encounter closing punctuation, no word
+			 * has been emitted, no scope is open, and we're
+			 * allowed to have an empty element, then start
+			 * a new scope.
+			 */
+			if ((d == DELIM_CLOSE ||
+			     (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
+			    !cnt && !scope && nc && mayopen) {
+				mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
+				scope = 1;
+				cnt++;
+				if (tok == MDOC_Nm)
+					mayopen = 0;
+			}
+			/*
+			 * Close out our scope, if one is open, before
+			 * any punctuation.
+			 */
+			if (scope && tok != MDOC_Lk) {
+				rew_elem(mdoc, tok);
+				scope = 0;
+				if (tok == MDOC_Fn)
+					mayopen = 0;
+			}
+		} else if (mayopen && !scope) {
+			mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
+			scope = 1;
+			cnt++;
+		}
+
+		dword(mdoc, line, la, p, d,
+		    mdoc_macros[tok].flags & MDOC_JOIN);
+
+		/*
+		 * If the first argument is a closing delimiter,
+		 * do not suppress spacing before it.
+		 */
+
+		if (firstarg && d == DELIM_CLOSE && !nc)
+			mdoc->last->flags &= ~NODE_DELIMC;
+		firstarg = 0;
+
+		/*
+		 * `Fl' macros have their scope re-opened with each new
+		 * word so that the `-' can be added to each one without
+		 * having to parse out spaces.
+		 */
+		if (scope && tok == MDOC_Fl) {
+			rew_elem(mdoc, tok);
+			scope = 0;
+		}
+	}
+
+	if (scope && tok != MDOC_Lk) {
+		rew_elem(mdoc, tok);
+		scope = 0;
+	}
+
+	/*
+	 * If no elements have been collected and we're allowed to have
+	 * empties (nc), open a scope and close it out.  Otherwise,
+	 * raise a warning.
+	 */
+
+	if ( ! cnt) {
+		if (nc) {
+			mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
+			rew_last(mdoc, mdoc->last);
+		} else {
+			mdoc_argv_free(arg);
+			mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
+			    line, ppos, roff_name[tok]);
+		}
+	}
+	if (nl)
+		append_delims(mdoc, line, pos, buf);
+	if (scope)
+		rew_elem(mdoc, tok);
+}
+
+static void
+blk_full(MACRO_PROT_ARGS)
+{
+	int		  la, nl, parsed;
+	struct mdoc_arg	 *arg;
+	struct roff_node *blk; /* Our own or a broken block. */
+	struct roff_node *head; /* Our own head. */
+	struct roff_node *body; /* Our own body. */
+	struct roff_node *n;
+	enum margserr	  ac, lac;
+	char		 *p;
+
+	nl = MDOC_NEWLINE & mdoc->flags;
+
+	if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
+		mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
+		    line, ppos, roff_name[tok]);
+		return;
+	}
+
+	if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
+
+		/* Here, tok is one of Sh Ss Nm Nd It. */
+
+		blk = NULL;
+		for (n = mdoc->last; n != NULL; n = n->parent) {
+			if (n->flags & NODE_ENDED) {
+				if ( ! (n->flags & NODE_VALID))
+					n->flags |= NODE_BROKEN;
+				continue;
+			}
+			if (n->type != ROFFT_BLOCK)
+				continue;
+
+			if (tok == MDOC_It && n->tok == MDOC_Bl) {
+				if (blk != NULL) {
+					mandoc_vmsg(MANDOCERR_BLK_BROKEN,
+					    mdoc->parse, line, ppos,
+					    "It breaks %s",
+					    roff_name[blk->tok]);
+					rew_pending(mdoc, blk);
+				}
+				break;
+			}
+
+			if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
+				switch (tok) {
+				case MDOC_Sh:
+				case MDOC_Ss:
+					mandoc_vmsg(MANDOCERR_BLK_BROKEN,
+					    mdoc->parse, line, ppos,
+					    "%s breaks %s", roff_name[tok],
+					    roff_name[n->tok]);
+					rew_pending(mdoc, n);
+					n = mdoc->last;
+					continue;
+				case MDOC_It:
+					/* Delay in case it's astray. */
+					blk = n;
+					continue;
+				default:
+					break;
+				}
+				break;
+			}
+
+			/* Here, n is one of Sh Ss Nm Nd It. */
+
+			if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
+			    (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
+			     (tok != MDOC_It && n->tok == MDOC_It)))))
+				break;
+
+			/* Item breaking an explicit block. */
+
+			if (blk != NULL) {
+				mandoc_vmsg(MANDOCERR_BLK_BROKEN,
+				    mdoc->parse, line, ppos,
+				    "It breaks %s", roff_name[blk->tok]);
+				rew_pending(mdoc, blk);
+				blk = NULL;
+			}
+
+			/* Close out prior implicit scopes. */
+
+			rew_pending(mdoc, n);
+		}
+
+		/* Skip items outside lists. */
+
+		if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
+			mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
+			    line, ppos, "It %s", buf + *pos);
+			roff_elem_alloc(mdoc, line, ppos, ROFF_br);
+			rew_elem(mdoc, ROFF_br);
+			return;
+		}
+	}
+
+	/*
+	 * This routine accommodates implicitly- and explicitly-scoped
+	 * macro openings.  Implicit ones first close out prior scope
+	 * (seen above).  Delay opening the head until necessary to
+	 * allow leading punctuation to print.  Special consideration
+	 * for `It -column', which has phrase-part syntax instead of
+	 * regular child nodes.
+	 */
+
+	mdoc_argv(mdoc, line, tok, &arg, pos, buf);
+	blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
+	head = body = NULL;
+
+	/*
+	 * Exception: Heads of `It' macros in `-diag' lists are not
+	 * parsed, even though `It' macros in general are parsed.
+	 */
+
+	parsed = tok != MDOC_It ||
+	    mdoc->last->parent->tok != MDOC_Bl ||
+	    mdoc->last->parent->norm->Bl.type != LIST_diag;
+
+	/*
+	 * The `Nd' macro has all arguments in its body: it's a hybrid
+	 * of block partial-explicit and full-implicit.  Stupid.
+	 */
+
+	if (tok == MDOC_Nd) {
+		head = roff_head_alloc(mdoc, line, ppos, tok);
+		rew_last(mdoc, head);
+		body = roff_body_alloc(mdoc, line, ppos, tok);
+	}
+
+	if (tok == MDOC_Bk)
+		mdoc->flags |= MDOC_KEEP;
+
+	ac = ARGS_EOLN;
+	for (;;) {
+
+		/*
+		 * If we are right after a tab character,
+		 * do not parse the first word for macros.
+		 */
+
+		if (mdoc->flags & MDOC_PHRASEQN) {
+			mdoc->flags &= ~MDOC_PHRASEQN;
+			mdoc->flags |= MDOC_PHRASEQF;
+		}
+
+		la = *pos;
+		lac = ac;
+		ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
+		if (ac == ARGS_EOLN) {
+			if (lac != ARGS_PHRASE ||
+			    ! (mdoc->flags & MDOC_PHRASEQF))
+				break;
+
+			/*
+			 * This line ends in a tab; start the next
+			 * column now, with a leading blank.
+			 */
+
+			if (body != NULL)
+				rew_last(mdoc, body);
+			body = roff_body_alloc(mdoc, line, ppos, tok);
+			roff_word_alloc(mdoc, line, ppos, "\\&");
+			break;
+		}
+
+		if (tok == MDOC_Bd || tok == MDOC_Bk) {
+			mandoc_vmsg(MANDOCERR_ARG_EXCESS,
+			    mdoc->parse, line, la, "%s ... %s",
+			    roff_name[tok], buf + la);
+			break;
+		}
+		if (tok == MDOC_Rs) {
+			mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
+			    line, la, "Rs %s", buf + la);
+			break;
+		}
+		if (ac == ARGS_PUNCT)
+			break;
+
+		/*
+		 * Emit leading punctuation (i.e., punctuation before
+		 * the ROFFT_HEAD) for non-phrase types.
+		 */
+
+		if (head == NULL &&
+		    ac != ARGS_PHRASE &&
+		    mdoc_isdelim(p) == DELIM_OPEN) {
+			dword(mdoc, line, la, p, DELIM_OPEN, 0);
+			continue;
+		}
+
+		/* Open a head if one hasn't been opened. */
+
+		if (head == NULL)
+			head = roff_head_alloc(mdoc, line, ppos, tok);
+
+		if (ac == ARGS_PHRASE) {
+
+			/*
+			 * If we haven't opened a body yet, rewind the
+			 * head; if we have, rewind that instead.
+			 */
+
+			rew_last(mdoc, body == NULL ? head : body);
+			body = roff_body_alloc(mdoc, line, ppos, tok);
+
+			/* Process to the tab or to the end of the line. */
+
+			mdoc->flags |= MDOC_PHRASE;
+			parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
+			mdoc->flags &= ~MDOC_PHRASE;
+
+			/* There may have been `Ta' macros. */
+
+			while (body->next != NULL)
+				body = body->next;
+			continue;
+		}
+
+		if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
+			break;
+	}
+
+	if (blk->flags & NODE_VALID)
+		return;
+	if (head == NULL)
+		head = roff_head_alloc(mdoc, line, ppos, tok);
+	if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
+		append_delims(mdoc, line, pos, buf);
+	if (body != NULL)
+		goto out;
+	if (find_pending(mdoc, tok, line, ppos, head))
+		return;
+
+	/* Close out scopes to remain in a consistent state. */
+
+	rew_last(mdoc, head);
+	body = roff_body_alloc(mdoc, line, ppos, tok);
+out:
+	if (mdoc->flags & MDOC_FREECOL) {
+		rew_last(mdoc, body);
+		rew_last(mdoc, blk);
+		mdoc->flags &= ~MDOC_FREECOL;
+	}
+}
+
+static void
+blk_part_imp(MACRO_PROT_ARGS)
+{
+	int		  la, nl;
+	enum margserr	  ac;
+	char		 *p;
+	struct roff_node *blk; /* saved block context */
+	struct roff_node *body; /* saved body context */
+	struct roff_node *n;
+
+	nl = MDOC_NEWLINE & mdoc->flags;
+
+	/*
+	 * A macro that spans to the end of the line.  This is generally
+	 * (but not necessarily) called as the first macro.  The block
+	 * has a head as the immediate child, which is always empty,
+	 * followed by zero or more opening punctuation nodes, then the
+	 * body (which may be empty, depending on the macro), then zero
+	 * or more closing punctuation nodes.
+	 */
+
+	blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
+	rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
+
+	/*
+	 * Open the body scope "on-demand", that is, after we've
+	 * processed all our the leading delimiters (open parenthesis,
+	 * etc.).
+	 */
+
+	for (body = NULL; ; ) {
+		la = *pos;
+		ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
+		if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
+			break;
+
+		if (body == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
+			dword(mdoc, line, la, p, DELIM_OPEN, 0);
+			continue;
+		}
+
+		if (body == NULL)
+			body = roff_body_alloc(mdoc, line, ppos, tok);
+
+		if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
+			break;
+	}
+	if (body == NULL)
+		body = roff_body_alloc(mdoc, line, ppos, tok);
+
+	if (find_pending(mdoc, tok, line, ppos, body))
+		return;
+
+	rew_last(mdoc, body);
+	if (nl)
+		append_delims(mdoc, line, pos, buf);
+	rew_pending(mdoc, blk);
+
+	/* Move trailing .Ns out of scope. */
+
+	for (n = body->child; n && n->next; n = n->next)
+		/* Do nothing. */ ;
+	if (n && n->tok == MDOC_Ns)
+		mdoc_node_relink(mdoc, n);
+}
+
+static void
+blk_part_exp(MACRO_PROT_ARGS)
+{
+	int		  la, nl;
+	enum margserr	  ac;
+	struct roff_node *head; /* keep track of head */
+	char		 *p;
+
+	nl = MDOC_NEWLINE & mdoc->flags;
+
+	/*
+	 * The opening of an explicit macro having zero or more leading
+	 * punctuation nodes; a head with optional single element (the
+	 * case of `Eo'); and a body that may be empty.
+	 */
+
+	roff_block_alloc(mdoc, line, ppos, tok);
+	head = NULL;
+	for (;;) {
+		la = *pos;
+		ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
+		if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
+			break;
+
+		/* Flush out leading punctuation. */
+
+		if (head == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
+			dword(mdoc, line, la, p, DELIM_OPEN, 0);
+			continue;
+		}
+
+		if (head == NULL) {
+			head = roff_head_alloc(mdoc, line, ppos, tok);
+			if (tok == MDOC_Eo)  /* Not parsed. */
+				dword(mdoc, line, la, p, DELIM_MAX, 0);
+			rew_last(mdoc, head);
+			roff_body_alloc(mdoc, line, ppos, tok);
+			if (tok == MDOC_Eo)
+				continue;
+		}
+
+		if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
+			break;
+	}
+
+	/* Clean-up to leave in a consistent state. */
+
+	if (head == NULL) {
+		rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
+		roff_body_alloc(mdoc, line, ppos, tok);
+	}
+	if (nl)
+		append_delims(mdoc, line, pos, buf);
+}
+
+static void
+in_line_argn(MACRO_PROT_ARGS)
+{
+	struct mdoc_arg	*arg;
+	char		*p;
+	enum margserr	 ac;
+	enum roff_tok	 ntok;
+	int		 state; /* arg#; -1: not yet open; -2: closed */
+	int		 la, maxargs, nl;
+
+	nl = mdoc->flags & MDOC_NEWLINE;
+
+	/*
+	 * A line macro that has a fixed number of arguments (maxargs).
+	 * Only open the scope once the first non-leading-punctuation is
+	 * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
+	 * keep it open until the maximum number of arguments are
+	 * exhausted.
+	 */
+
+	switch (tok) {
+	case MDOC_Ap:
+	case MDOC_Ns:
+	case MDOC_Ux:
+		maxargs = 0;
+		break;
+	case MDOC_Bx:
+	case MDOC_Es:
+	case MDOC_Xr:
+		maxargs = 2;
+		break;
+	default:
+		maxargs = 1;
+		break;
+	}
+
+	mdoc_argv(mdoc, line, tok, &arg, pos, buf);
+
+	state = -1;
+	p = NULL;
+	for (;;) {
+		la = *pos;
+		ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
+
+		if (ac == ARGS_WORD && state == -1 &&
+		    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
+		    mdoc_isdelim(p) == DELIM_OPEN) {
+			dword(mdoc, line, la, p, DELIM_OPEN, 0);
+			continue;
+		}
+
+		if (state == -1 && tok != MDOC_In &&
+		    tok != MDOC_St && tok != MDOC_Xr) {
+			mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
+			state = 0;
+		}
+
+		if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
+			if (abs(state) < 2 && tok == MDOC_Pf)
+				mandoc_vmsg(MANDOCERR_PF_SKIP,
+				    mdoc->parse, line, ppos, "Pf %s",
+				    p == NULL ? "at eol" : p);
+			break;
+		}
+
+		if (state == maxargs) {
+			rew_elem(mdoc, tok);
+			state = -2;
+		}
+
+		ntok = (tok == MDOC_Pf && state == 0) ?
+		    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
+
+		if (ntok != TOKEN_NONE) {
+			if (state >= 0) {
+				rew_elem(mdoc, tok);
+				state = -2;
+			}
+			mdoc_macro(mdoc, ntok, line, la, pos, buf);
+			break;
+		}
+
+		if (mdoc_macros[tok].flags & MDOC_IGNDELIM ||
+		    mdoc_isdelim(p) == DELIM_NONE) {
+			if (state == -1) {
+				mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
+				state = 1;
+			} else if (state >= 0)
+				state++;
+		} else if (state >= 0) {
+			rew_elem(mdoc, tok);
+			state = -2;
+		}
+
+		dword(mdoc, line, la, p, DELIM_MAX,
+		    mdoc_macros[tok].flags & MDOC_JOIN);
+	}
+
+	if (state == -1) {
+		mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
+		    line, ppos, roff_name[tok]);
+		return;
+	}
+
+	if (state == 0 && tok == MDOC_Pf)
+		append_delims(mdoc, line, pos, buf);
+	if (state >= 0)
+		rew_elem(mdoc, tok);
+	if (nl)
+		append_delims(mdoc, line, pos, buf);
+}
+
+static void
+in_line_eoln(MACRO_PROT_ARGS)
+{
+	struct roff_node	*n;
+	struct mdoc_arg		*arg;
+
+	if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
+	    ! (mdoc->flags & MDOC_SYNOPSIS)) {
+		n = mdoc->last;
+		if (mdoc->next == ROFF_NEXT_SIBLING)
+			n = n->parent;
+		if (n->tok == MDOC_Nm)
+			rew_last(mdoc, n->parent);
+	}
+
+	if (buf[*pos] == '\0' &&
+	    (tok == MDOC_Fd || *roff_name[tok] == '%')) {
+		mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
+		    line, ppos, roff_name[tok]);
+		return;
+	}
+
+	mdoc_argv(mdoc, line, tok, &arg, pos, buf);
+	mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
+	if (parse_rest(mdoc, tok, line, pos, buf))
+		return;
+	rew_elem(mdoc, tok);
+}
+
+/*
+ * The simplest argument parser available: Parse the remaining
+ * words until the end of the phrase or line and return 0
+ * or until the next macro, call that macro, and return 1.
+ */
+static int
+parse_rest(struct roff_man *mdoc, enum roff_tok tok,
+    int line, int *pos, char *buf)
+{
+	int		 la;
+
+	for (;;) {
+		la = *pos;
+		if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
+			return 0;
+		if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
+			return 1;
+	}
+}
+
+static void
+ctx_synopsis(MACRO_PROT_ARGS)
+{
+
+	if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
+		in_line(mdoc, tok, line, ppos, pos, buf);
+	else if (tok == MDOC_Nm)
+		blk_full(mdoc, tok, line, ppos, pos, buf);
+	else {
+		assert(tok == MDOC_Vt);
+		blk_part_imp(mdoc, tok, line, ppos, pos, buf);
+	}
+}
+
+/*
+ * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
+ * They're unusual because they're basically free-form text until a
+ * macro is encountered.
+ */
+static void
+phrase_ta(MACRO_PROT_ARGS)
+{
+	struct roff_node *body, *n;
+
+	/* Make sure we are in a column list or ignore this macro. */
+
+	body = NULL;
+	for (n = mdoc->last; n != NULL; n = n->parent) {
+		if (n->flags & NODE_ENDED)
+			continue;
+		if (n->tok == MDOC_It && n->type == ROFFT_BODY)
+			body = n;
+		if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
+			break;
+	}
+
+	if (n == NULL || n->norm->Bl.type != LIST_column) {
+		mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
+		    line, ppos, "Ta");
+		return;
+	}
+
+	/* Advance to the next column. */
+
+	rew_last(mdoc, body);
+	roff_body_alloc(mdoc, line, ppos, MDOC_It);
+	parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
+}

Added: vendor/mandoc/dist/mdoc_man.c
===================================================================
--- vendor/mandoc/dist/mdoc_man.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_man.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1804 @@
+/*	$Id: mdoc_man.c,v 1.122 2017/06/14 22:51:25 schwarze Exp $ */
+/*
+ * Copyright (c) 2011-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "out.h"
+#include "main.h"
+
+#define	DECL_ARGS const struct roff_meta *meta, struct roff_node *n
+
+typedef	int	(*int_fp)(DECL_ARGS);
+typedef	void	(*void_fp)(DECL_ARGS);
+
+struct	manact {
+	int_fp		  cond; /* DON'T run actions */
+	int_fp		  pre; /* pre-node action */
+	void_fp		  post; /* post-node action */
+	const char	 *prefix; /* pre-node string constant */
+	const char	 *suffix; /* post-node string constant */
+};
+
+static	int	  cond_body(DECL_ARGS);
+static	int	  cond_head(DECL_ARGS);
+static  void	  font_push(char);
+static	void	  font_pop(void);
+static	int	  man_strlen(const char *);
+static	void	  mid_it(void);
+static	void	  post__t(DECL_ARGS);
+static	void	  post_aq(DECL_ARGS);
+static	void	  post_bd(DECL_ARGS);
+static	void	  post_bf(DECL_ARGS);
+static	void	  post_bk(DECL_ARGS);
+static	void	  post_bl(DECL_ARGS);
+static	void	  post_dl(DECL_ARGS);
+static	void	  post_en(DECL_ARGS);
+static	void	  post_enc(DECL_ARGS);
+static	void	  post_eo(DECL_ARGS);
+static	void	  post_fa(DECL_ARGS);
+static	void	  post_fd(DECL_ARGS);
+static	void	  post_fl(DECL_ARGS);
+static	void	  post_fn(DECL_ARGS);
+static	void	  post_fo(DECL_ARGS);
+static	void	  post_font(DECL_ARGS);
+static	void	  post_in(DECL_ARGS);
+static	void	  post_it(DECL_ARGS);
+static	void	  post_lb(DECL_ARGS);
+static	void	  post_nm(DECL_ARGS);
+static	void	  post_percent(DECL_ARGS);
+static	void	  post_pf(DECL_ARGS);
+static	void	  post_sect(DECL_ARGS);
+static	void	  post_vt(DECL_ARGS);
+static	int	  pre__t(DECL_ARGS);
+static	int	  pre_an(DECL_ARGS);
+static	int	  pre_ap(DECL_ARGS);
+static	int	  pre_aq(DECL_ARGS);
+static	int	  pre_bd(DECL_ARGS);
+static	int	  pre_bf(DECL_ARGS);
+static	int	  pre_bk(DECL_ARGS);
+static	int	  pre_bl(DECL_ARGS);
+static	void	  pre_br(DECL_ARGS);
+static	int	  pre_dl(DECL_ARGS);
+static	int	  pre_en(DECL_ARGS);
+static	int	  pre_enc(DECL_ARGS);
+static	int	  pre_em(DECL_ARGS);
+static	int	  pre_skip(DECL_ARGS);
+static	int	  pre_eo(DECL_ARGS);
+static	int	  pre_ex(DECL_ARGS);
+static	int	  pre_fa(DECL_ARGS);
+static	int	  pre_fd(DECL_ARGS);
+static	int	  pre_fl(DECL_ARGS);
+static	int	  pre_fn(DECL_ARGS);
+static	int	  pre_fo(DECL_ARGS);
+static	void	  pre_ft(DECL_ARGS);
+static	int	  pre_Ft(DECL_ARGS);
+static	int	  pre_in(DECL_ARGS);
+static	int	  pre_it(DECL_ARGS);
+static	int	  pre_lk(DECL_ARGS);
+static	int	  pre_li(DECL_ARGS);
+static	int	  pre_nm(DECL_ARGS);
+static	int	  pre_no(DECL_ARGS);
+static	int	  pre_ns(DECL_ARGS);
+static	void	  pre_onearg(DECL_ARGS);
+static	int	  pre_pp(DECL_ARGS);
+static	int	  pre_rs(DECL_ARGS);
+static	int	  pre_sm(DECL_ARGS);
+static	void	  pre_sp(DECL_ARGS);
+static	int	  pre_sect(DECL_ARGS);
+static	int	  pre_sy(DECL_ARGS);
+static	void	  pre_syn(const struct roff_node *);
+static	void	  pre_ta(DECL_ARGS);
+static	int	  pre_vt(DECL_ARGS);
+static	int	  pre_xr(DECL_ARGS);
+static	void	  print_word(const char *);
+static	void	  print_line(const char *, int);
+static	void	  print_block(const char *, int);
+static	void	  print_offs(const char *, int);
+static	void	  print_width(const struct mdoc_bl *,
+			const struct roff_node *);
+static	void	  print_count(int *);
+static	void	  print_node(DECL_ARGS);
+
+static	const void_fp roff_manacts[ROFF_MAX] = {
+	pre_br,		/* br */
+	pre_onearg,	/* ce */
+	pre_ft,		/* ft */
+	pre_onearg,	/* ll */
+	pre_onearg,	/* mc */
+	pre_onearg,	/* po */
+	pre_onearg,	/* rj */
+	pre_sp,		/* sp */
+	pre_ta,		/* ta */
+	pre_onearg,	/* ti */
+};
+
+static	const struct manact __manacts[MDOC_MAX - MDOC_Dd] = {
+	{ NULL, NULL, NULL, NULL, NULL }, /* Dd */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Dt */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Os */
+	{ NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */
+	{ NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */
+	{ NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
+	{ cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */
+	{ cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
+	{ cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ed */
+	{ cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */
+	{ NULL, NULL, NULL, NULL, NULL }, /* El */
+	{ NULL, pre_it, post_it, NULL, NULL }, /* It */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Ad */
+	{ NULL, pre_an, NULL, NULL, NULL }, /* An */
+	{ NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Ar */
+	{ NULL, pre_sy, post_font, NULL, NULL }, /* Cd */
+	{ NULL, pre_sy, post_font, NULL, NULL }, /* Cm */
+	{ NULL, pre_li, post_font, NULL, NULL }, /* Dv */
+	{ NULL, pre_li, post_font, NULL, NULL }, /* Er */
+	{ NULL, pre_li, post_font, NULL, NULL }, /* Ev */
+	{ NULL, pre_ex, NULL, NULL, NULL }, /* Ex */
+	{ NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */
+	{ NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */
+	{ NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */
+	{ NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */
+	{ NULL, pre_Ft, post_font, NULL, NULL }, /* Ft */
+	{ NULL, pre_sy, post_font, NULL, NULL }, /* Ic */
+	{ NULL, pre_in, post_in, NULL, NULL }, /* In */
+	{ NULL, pre_li, post_font, NULL, NULL }, /* Li */
+	{ cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
+	{ NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
+	{ cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
+	{ NULL, pre_Ft, post_font, NULL, NULL }, /* Ot */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Pa */
+	{ NULL, pre_ex, NULL, NULL, NULL }, /* Rv */
+	{ NULL, NULL, NULL, NULL, NULL }, /* St */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Va */
+	{ NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */
+	{ NULL, pre_xr, NULL, NULL, NULL }, /* Xr */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %A */
+	{ NULL, pre_em, post_percent, NULL, NULL }, /* %B */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %D */
+	{ NULL, pre_em, post_percent, NULL, NULL }, /* %I */
+	{ NULL, pre_em, post_percent, NULL, NULL }, /* %J */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %N */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %O */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %P */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %R */
+	{ NULL, pre__t, post__t, NULL, NULL }, /* %T */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %V */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ac */
+	{ cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */
+	{ cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* At */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Bc */
+	{ NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */
+	{ cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */
+	{ cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */
+	{ NULL, pre_bk, post_bk, NULL, NULL }, /* Bsx */
+	{ NULL, pre_bk, post_bk, NULL, NULL }, /* Bx */
+	{ NULL, pre_skip, NULL, NULL, NULL }, /* Db */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Dc */
+	{ cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Do */
+	{ cond_body, pre_enc, post_enc, "\\(Lq", "\\(Rq" }, /* Dq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ec */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ef */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Em */
+	{ cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */
+	{ NULL, pre_bk, post_bk, NULL, NULL }, /* Fx */
+	{ NULL, pre_sy, post_font, NULL, NULL }, /* Ms */
+	{ NULL, pre_no, NULL, NULL, NULL }, /* No */
+	{ NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
+	{ NULL, pre_bk, post_bk, NULL, NULL }, /* Nx */
+	{ NULL, pre_bk, post_bk, NULL, NULL }, /* Ox */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Pc */
+	{ NULL, NULL, post_pf, NULL, NULL }, /* Pf */
+	{ cond_body, pre_enc, post_enc, "(", ")" }, /* Po */
+	{ cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Qc */
+	{ cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */
+	{ cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */
+	{ cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Re */
+	{ cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Sc */
+	{ cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */
+	{ cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */
+	{ NULL, pre_sm, NULL, NULL, NULL }, /* Sm */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Sx */
+	{ NULL, pre_sy, post_font, NULL, NULL }, /* Sy */
+	{ NULL, pre_li, post_font, NULL, NULL }, /* Tn */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ux */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Xc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Xo */
+	{ NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Fc */
+	{ cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Oc */
+	{ NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ek */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Bt */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Hf */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Fr */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ud */
+	{ NULL, NULL, post_lb, NULL, NULL }, /* Lb */
+	{ NULL, pre_pp, NULL, NULL, NULL }, /* Lp */
+	{ NULL, pre_lk, NULL, NULL, NULL }, /* Lk */
+	{ NULL, pre_em, post_font, NULL, NULL }, /* Mt */
+	{ cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */
+	{ cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Brc */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %C */
+	{ NULL, pre_skip, NULL, NULL, NULL }, /* Es */
+	{ cond_body, pre_en, post_en, NULL, NULL }, /* En */
+	{ NULL, pre_bk, post_bk, NULL, NULL }, /* Dx */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %Q */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* %U */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ta */
+};
+static	const struct manact *const manacts = __manacts - MDOC_Dd;
+
+static	int		outflags;
+#define	MMAN_spc	(1 << 0)  /* blank character before next word */
+#define	MMAN_spc_force	(1 << 1)  /* even before trailing punctuation */
+#define	MMAN_nl		(1 << 2)  /* break man(7) code line */
+#define	MMAN_br		(1 << 3)  /* break output line */
+#define	MMAN_sp		(1 << 4)  /* insert a blank output line */
+#define	MMAN_PP		(1 << 5)  /* reset indentation etc. */
+#define	MMAN_Sm		(1 << 6)  /* horizontal spacing mode */
+#define	MMAN_Bk		(1 << 7)  /* word keep mode */
+#define	MMAN_Bk_susp	(1 << 8)  /* suspend this (after a macro) */
+#define	MMAN_An_split	(1 << 9)  /* author mode is "split" */
+#define	MMAN_An_nosplit	(1 << 10) /* author mode is "nosplit" */
+#define	MMAN_PD		(1 << 11) /* inter-paragraph spacing disabled */
+#define	MMAN_nbrword	(1 << 12) /* do not break the next word */
+
+#define	BL_STACK_MAX	32
+
+static	int		Bl_stack[BL_STACK_MAX];  /* offsets [chars] */
+static	int		Bl_stack_post[BL_STACK_MAX];  /* add final .RE */
+static	int		Bl_stack_len;  /* number of nested Bl blocks */
+static	int		TPremain;  /* characters before tag is full */
+
+static	struct {
+	char	*head;
+	char	*tail;
+	size_t	 size;
+}	fontqueue;
+
+
+static int
+man_strlen(const char *cp)
+{
+	size_t	 rsz;
+	int	 skip, sz;
+
+	sz = 0;
+	skip = 0;
+	for (;;) {
+		rsz = strcspn(cp, "\\");
+		if (rsz) {
+			cp += rsz;
+			if (skip) {
+				skip = 0;
+				rsz--;
+			}
+			sz += rsz;
+		}
+		if ('\0' == *cp)
+			break;
+		cp++;
+		switch (mandoc_escape(&cp, NULL, NULL)) {
+		case ESCAPE_ERROR:
+			return sz;
+		case ESCAPE_UNICODE:
+		case ESCAPE_NUMBERED:
+		case ESCAPE_SPECIAL:
+		case ESCAPE_OVERSTRIKE:
+			if (skip)
+				skip = 0;
+			else
+				sz++;
+			break;
+		case ESCAPE_SKIPCHAR:
+			skip = 1;
+			break;
+		default:
+			break;
+		}
+	}
+	return sz;
+}
+
+static void
+font_push(char newfont)
+{
+
+	if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) {
+		fontqueue.size += 8;
+		fontqueue.head = mandoc_realloc(fontqueue.head,
+		    fontqueue.size);
+	}
+	*fontqueue.tail = newfont;
+	print_word("");
+	printf("\\f");
+	putchar(newfont);
+	outflags &= ~MMAN_spc;
+}
+
+static void
+font_pop(void)
+{
+
+	if (fontqueue.tail > fontqueue.head)
+		fontqueue.tail--;
+	outflags &= ~MMAN_spc;
+	print_word("");
+	printf("\\f");
+	putchar(*fontqueue.tail);
+}
+
+static void
+print_word(const char *s)
+{
+
+	if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) {
+		/*
+		 * If we need a newline, print it now and start afresh.
+		 */
+		if (MMAN_PP & outflags) {
+			if (MMAN_sp & outflags) {
+				if (MMAN_PD & outflags) {
+					printf("\n.PD");
+					outflags &= ~MMAN_PD;
+				}
+			} else if ( ! (MMAN_PD & outflags)) {
+				printf("\n.PD 0");
+				outflags |= MMAN_PD;
+			}
+			printf("\n.PP\n");
+		} else if (MMAN_sp & outflags)
+			printf("\n.sp\n");
+		else if (MMAN_br & outflags)
+			printf("\n.br\n");
+		else if (MMAN_nl & outflags)
+			putchar('\n');
+		outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc);
+		if (1 == TPremain)
+			printf(".br\n");
+		TPremain = 0;
+	} else if (MMAN_spc & outflags) {
+		/*
+		 * If we need a space, only print it if
+		 * (1) it is forced by `No' or
+		 * (2) what follows is not terminating punctuation or
+		 * (3) what follows is longer than one character.
+		 */
+		if (MMAN_spc_force & outflags || '\0' == s[0] ||
+		    NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) {
+			if (MMAN_Bk & outflags &&
+			    ! (MMAN_Bk_susp & outflags))
+				putchar('\\');
+			putchar(' ');
+			if (TPremain)
+				TPremain--;
+		}
+	}
+
+	/*
+	 * Reassign needing space if we're not following opening
+	 * punctuation.
+	 */
+	if (MMAN_Sm & outflags && ('\0' == s[0] ||
+	    (('(' != s[0] && '[' != s[0]) || '\0' != s[1])))
+		outflags |= MMAN_spc;
+	else
+		outflags &= ~MMAN_spc;
+	outflags &= ~(MMAN_spc_force | MMAN_Bk_susp);
+
+	for ( ; *s; s++) {
+		switch (*s) {
+		case ASCII_NBRSP:
+			printf("\\ ");
+			break;
+		case ASCII_HYPH:
+			putchar('-');
+			break;
+		case ASCII_BREAK:
+			printf("\\:");
+			break;
+		case ' ':
+			if (MMAN_nbrword & outflags) {
+				printf("\\ ");
+				break;
+			}
+			/* FALLTHROUGH */
+		default:
+			putchar((unsigned char)*s);
+			break;
+		}
+		if (TPremain)
+			TPremain--;
+	}
+	outflags &= ~MMAN_nbrword;
+}
+
+static void
+print_line(const char *s, int newflags)
+{
+
+	outflags |= MMAN_nl;
+	print_word(s);
+	outflags |= newflags;
+}
+
+static void
+print_block(const char *s, int newflags)
+{
+
+	outflags &= ~MMAN_PP;
+	if (MMAN_sp & outflags) {
+		outflags &= ~(MMAN_sp | MMAN_br);
+		if (MMAN_PD & outflags) {
+			print_line(".PD", 0);
+			outflags &= ~MMAN_PD;
+		}
+	} else if (! (MMAN_PD & outflags))
+		print_line(".PD 0", MMAN_PD);
+	outflags |= MMAN_nl;
+	print_word(s);
+	outflags |= MMAN_Bk_susp | newflags;
+}
+
+static void
+print_offs(const char *v, int keywords)
+{
+	char		  buf[24];
+	struct roffsu	  su;
+	const char	 *end;
+	int		  sz;
+
+	print_line(".RS", MMAN_Bk_susp);
+
+	/* Convert v into a number (of characters). */
+	if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left")))
+		sz = 0;
+	else if (keywords && !strcmp(v, "indent"))
+		sz = 6;
+	else if (keywords && !strcmp(v, "indent-two"))
+		sz = 12;
+	else {
+		end = a2roffsu(v, &su, SCALE_EN);
+		if (end == NULL || *end != '\0')
+			sz = man_strlen(v);
+		else if (SCALE_EN == su.unit)
+			sz = su.scale;
+		else {
+			/*
+			 * XXX
+			 * If we are inside an enclosing list,
+			 * there is no easy way to add the two
+			 * indentations because they are provided
+			 * in terms of different units.
+			 */
+			print_word(v);
+			outflags |= MMAN_nl;
+			return;
+		}
+	}
+
+	/*
+	 * We are inside an enclosing list.
+	 * Add the two indentations.
+	 */
+	if (Bl_stack_len)
+		sz += Bl_stack[Bl_stack_len - 1];
+
+	(void)snprintf(buf, sizeof(buf), "%dn", sz);
+	print_word(buf);
+	outflags |= MMAN_nl;
+}
+
+/*
+ * Set up the indentation for a list item; used from pre_it().
+ */
+static void
+print_width(const struct mdoc_bl *bl, const struct roff_node *child)
+{
+	char		  buf[24];
+	struct roffsu	  su;
+	const char	 *end;
+	int		  numeric, remain, sz, chsz;
+
+	numeric = 1;
+	remain = 0;
+
+	/* Convert the width into a number (of characters). */
+	if (bl->width == NULL)
+		sz = (bl->type == LIST_hang) ? 6 : 0;
+	else {
+		end = a2roffsu(bl->width, &su, SCALE_MAX);
+		if (end == NULL || *end != '\0')
+			sz = man_strlen(bl->width);
+		else if (SCALE_EN == su.unit)
+			sz = su.scale;
+		else {
+			sz = 0;
+			numeric = 0;
+		}
+	}
+
+	/* XXX Rough estimation, might have multiple parts. */
+	if (bl->type == LIST_enum)
+		chsz = (bl->count > 8) + 1;
+	else if (child != NULL && child->type == ROFFT_TEXT)
+		chsz = man_strlen(child->string);
+	else
+		chsz = 0;
+
+	/* Maybe we are inside an enclosing list? */
+	mid_it();
+
+	/*
+	 * Save our own indentation,
+	 * such that child lists can use it.
+	 */
+	Bl_stack[Bl_stack_len++] = sz + 2;
+
+	/* Set up the current list. */
+	if (chsz > sz && bl->type != LIST_tag)
+		print_block(".HP", 0);
+	else {
+		print_block(".TP", 0);
+		remain = sz + 2;
+	}
+	if (numeric) {
+		(void)snprintf(buf, sizeof(buf), "%dn", sz + 2);
+		print_word(buf);
+	} else
+		print_word(bl->width);
+	TPremain = remain;
+}
+
+static void
+print_count(int *count)
+{
+	char		  buf[24];
+
+	(void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count);
+	print_word(buf);
+}
+
+void
+man_man(void *arg, const struct roff_man *man)
+{
+
+	/*
+	 * Dump the keep buffer.
+	 * We're guaranteed by now that this exists (is non-NULL).
+	 * Flush stdout afterward, just in case.
+	 */
+	fputs(mparse_getkeep(man_mparse(man)), stdout);
+	fflush(stdout);
+}
+
+void
+man_mdoc(void *arg, const struct roff_man *mdoc)
+{
+	struct roff_node *n;
+
+	printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n",
+	    mdoc->meta.title,
+	    (mdoc->meta.msec == NULL ? "" : mdoc->meta.msec),
+	    mdoc->meta.date, mdoc->meta.os, mdoc->meta.vol);
+
+	/* Disable hyphenation and if nroff, disable justification. */
+	printf(".nh\n.if n .ad l");
+
+	outflags = MMAN_nl | MMAN_Sm;
+	if (0 == fontqueue.size) {
+		fontqueue.size = 8;
+		fontqueue.head = fontqueue.tail = mandoc_malloc(8);
+		*fontqueue.tail = 'R';
+	}
+	for (n = mdoc->first->child; n != NULL; n = n->next)
+		print_node(&mdoc->meta, n);
+	putchar('\n');
+}
+
+static void
+print_node(DECL_ARGS)
+{
+	const struct manact	*act;
+	struct roff_node	*sub;
+	int			 cond, do_sub;
+
+	if (n->flags & NODE_NOPRT)
+		return;
+
+	/*
+	 * Break the line if we were parsed subsequent the current node.
+	 * This makes the page structure be more consistent.
+	 */
+	if (MMAN_spc & outflags && NODE_LINE & n->flags)
+		outflags |= MMAN_nl;
+
+	act = NULL;
+	cond = 0;
+	do_sub = 1;
+	n->flags &= ~NODE_ENDED;
+
+	if (n->type == ROFFT_TEXT) {
+		/*
+		 * Make sure that we don't happen to start with a
+		 * control character at the start of a line.
+		 */
+		if (MMAN_nl & outflags &&
+		    ('.' == *n->string || '\'' == *n->string)) {
+			print_word("");
+			printf("\\&");
+			outflags &= ~MMAN_spc;
+		}
+		if (n->flags & NODE_DELIMC)
+			outflags &= ~(MMAN_spc | MMAN_spc_force);
+		else if (outflags & MMAN_Sm)
+			outflags |= MMAN_spc_force;
+		print_word(n->string);
+		if (n->flags & NODE_DELIMO)
+			outflags &= ~(MMAN_spc | MMAN_spc_force);
+		else if (outflags & MMAN_Sm)
+			outflags |= MMAN_spc;
+	} else if (n->tok < ROFF_MAX) {
+		(*roff_manacts[n->tok])(meta, n);
+		return;
+	} else {
+		assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+		/*
+		 * Conditionally run the pre-node action handler for a
+		 * node.
+		 */
+		act = manacts + n->tok;
+		cond = act->cond == NULL || (*act->cond)(meta, n);
+		if (cond && act->pre != NULL &&
+		    (n->end == ENDBODY_NOT || n->child != NULL))
+			do_sub = (*act->pre)(meta, n);
+	}
+
+	/*
+	 * Conditionally run all child nodes.
+	 * Note that this iterates over children instead of using
+	 * recursion.  This prevents unnecessary depth in the stack.
+	 */
+	if (do_sub)
+		for (sub = n->child; sub; sub = sub->next)
+			print_node(meta, sub);
+
+	/*
+	 * Lastly, conditionally run the post-node handler.
+	 */
+	if (NODE_ENDED & n->flags)
+		return;
+
+	if (cond && act->post)
+		(*act->post)(meta, n);
+
+	if (ENDBODY_NOT != n->end)
+		n->body->flags |= NODE_ENDED;
+}
+
+static int
+cond_head(DECL_ARGS)
+{
+
+	return n->type == ROFFT_HEAD;
+}
+
+static int
+cond_body(DECL_ARGS)
+{
+
+	return n->type == ROFFT_BODY;
+}
+
+static int
+pre_enc(DECL_ARGS)
+{
+	const char	*prefix;
+
+	prefix = manacts[n->tok].prefix;
+	if (NULL == prefix)
+		return 1;
+	print_word(prefix);
+	outflags &= ~MMAN_spc;
+	return 1;
+}
+
+static void
+post_enc(DECL_ARGS)
+{
+	const char *suffix;
+
+	suffix = manacts[n->tok].suffix;
+	if (NULL == suffix)
+		return;
+	outflags &= ~(MMAN_spc | MMAN_nl);
+	print_word(suffix);
+}
+
+static int
+pre_ex(DECL_ARGS)
+{
+	outflags |= MMAN_br | MMAN_nl;
+	return 1;
+}
+
+static void
+post_font(DECL_ARGS)
+{
+
+	font_pop();
+}
+
+static void
+post_percent(DECL_ARGS)
+{
+
+	if (pre_em == manacts[n->tok].pre)
+		font_pop();
+	if (n->next) {
+		print_word(",");
+		if (n->prev &&	n->prev->tok == n->tok &&
+				n->next->tok == n->tok)
+			print_word("and");
+	} else {
+		print_word(".");
+		outflags |= MMAN_nl;
+	}
+}
+
+static int
+pre__t(DECL_ARGS)
+{
+
+	if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) {
+		print_word("\\(lq");
+		outflags &= ~MMAN_spc;
+	} else
+		font_push('I');
+	return 1;
+}
+
+static void
+post__t(DECL_ARGS)
+{
+
+	if (n->parent->tok  == MDOC_Rs && n->parent->norm->Rs.quote_T) {
+		outflags &= ~MMAN_spc;
+		print_word("\\(rq");
+	} else
+		font_pop();
+	post_percent(meta, n);
+}
+
+/*
+ * Print before a section header.
+ */
+static int
+pre_sect(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_HEAD) {
+		outflags |= MMAN_sp;
+		print_block(manacts[n->tok].prefix, 0);
+		print_word("");
+		putchar('\"');
+		outflags &= ~MMAN_spc;
+	}
+	return 1;
+}
+
+/*
+ * Print subsequent a section header.
+ */
+static void
+post_sect(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_HEAD)
+		return;
+	outflags &= ~MMAN_spc;
+	print_word("");
+	putchar('\"');
+	outflags |= MMAN_nl;
+	if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec)
+		outflags &= ~(MMAN_An_split | MMAN_An_nosplit);
+}
+
+/* See mdoc_term.c, synopsis_pre() for comments. */
+static void
+pre_syn(const struct roff_node *n)
+{
+
+	if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
+		return;
+
+	if (n->prev->tok == n->tok &&
+	    MDOC_Ft != n->tok &&
+	    MDOC_Fo != n->tok &&
+	    MDOC_Fn != n->tok) {
+		outflags |= MMAN_br;
+		return;
+	}
+
+	switch (n->prev->tok) {
+	case MDOC_Fd:
+	case MDOC_Fn:
+	case MDOC_Fo:
+	case MDOC_In:
+	case MDOC_Vt:
+		outflags |= MMAN_sp;
+		break;
+	case MDOC_Ft:
+		if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
+			outflags |= MMAN_sp;
+			break;
+		}
+		/* FALLTHROUGH */
+	default:
+		outflags |= MMAN_br;
+		break;
+	}
+}
+
+static int
+pre_an(DECL_ARGS)
+{
+
+	switch (n->norm->An.auth) {
+	case AUTH_split:
+		outflags &= ~MMAN_An_nosplit;
+		outflags |= MMAN_An_split;
+		return 0;
+	case AUTH_nosplit:
+		outflags &= ~MMAN_An_split;
+		outflags |= MMAN_An_nosplit;
+		return 0;
+	default:
+		if (MMAN_An_split & outflags)
+			outflags |= MMAN_br;
+		else if (SEC_AUTHORS == n->sec &&
+		    ! (MMAN_An_nosplit & outflags))
+			outflags |= MMAN_An_split;
+		return 1;
+	}
+}
+
+static int
+pre_ap(DECL_ARGS)
+{
+
+	outflags &= ~MMAN_spc;
+	print_word("'");
+	outflags &= ~MMAN_spc;
+	return 0;
+}
+
+static int
+pre_aq(DECL_ARGS)
+{
+
+	print_word(n->child != NULL && n->child->next == NULL &&
+	    n->child->tok == MDOC_Mt ?  "<" : "\\(la");
+	outflags &= ~MMAN_spc;
+	return 1;
+}
+
+static void
+post_aq(DECL_ARGS)
+{
+
+	outflags &= ~(MMAN_spc | MMAN_nl);
+	print_word(n->child != NULL && n->child->next == NULL &&
+	    n->child->tok == MDOC_Mt ?  ">" : "\\(ra");
+}
+
+static int
+pre_bd(DECL_ARGS)
+{
+
+	outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
+
+	if (DISP_unfilled == n->norm->Bd.type ||
+	    DISP_literal  == n->norm->Bd.type)
+		print_line(".nf", 0);
+	if (0 == n->norm->Bd.comp && NULL != n->parent->prev)
+		outflags |= MMAN_sp;
+	print_offs(n->norm->Bd.offs, 1);
+	return 1;
+}
+
+static void
+post_bd(DECL_ARGS)
+{
+
+	/* Close out this display. */
+	print_line(".RE", MMAN_nl);
+	if (DISP_unfilled == n->norm->Bd.type ||
+	    DISP_literal  == n->norm->Bd.type)
+		print_line(".fi", MMAN_nl);
+
+	/* Maybe we are inside an enclosing list? */
+	if (NULL != n->parent->next)
+		mid_it();
+}
+
+static int
+pre_bf(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		return 1;
+	case ROFFT_BODY:
+		break;
+	default:
+		return 0;
+	}
+	switch (n->norm->Bf.font) {
+	case FONT_Em:
+		font_push('I');
+		break;
+	case FONT_Sy:
+		font_push('B');
+		break;
+	default:
+		font_push('R');
+		break;
+	}
+	return 1;
+}
+
+static void
+post_bf(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_BODY)
+		font_pop();
+}
+
+static int
+pre_bk(DECL_ARGS)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		return 1;
+	case ROFFT_BODY:
+	case ROFFT_ELEM:
+		outflags |= MMAN_Bk;
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static void
+post_bk(DECL_ARGS)
+{
+	switch (n->type) {
+	case ROFFT_ELEM:
+		while ((n = n->parent) != NULL)
+			 if (n->tok == MDOC_Bk)
+				return;
+		/* FALLTHROUGH */
+	case ROFFT_BODY:
+		outflags &= ~MMAN_Bk;
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_bl(DECL_ARGS)
+{
+	size_t		 icol;
+
+	/*
+	 * print_offs() will increase the -offset to account for
+	 * a possible enclosing .It, but any enclosed .It blocks
+	 * just nest and do not add up their indentation.
+	 */
+	if (n->norm->Bl.offs) {
+		print_offs(n->norm->Bl.offs, 0);
+		Bl_stack[Bl_stack_len++] = 0;
+	}
+
+	switch (n->norm->Bl.type) {
+	case LIST_enum:
+		n->norm->Bl.count = 0;
+		return 1;
+	case LIST_column:
+		break;
+	default:
+		return 1;
+	}
+
+	if (n->child != NULL) {
+		print_line(".TS", MMAN_nl);
+		for (icol = 0; icol < n->norm->Bl.ncols; icol++)
+			print_word("l");
+		print_word(".");
+	}
+	outflags |= MMAN_nl;
+	return 1;
+}
+
+static void
+post_bl(DECL_ARGS)
+{
+
+	switch (n->norm->Bl.type) {
+	case LIST_column:
+		if (n->child != NULL)
+			print_line(".TE", 0);
+		break;
+	case LIST_enum:
+		n->norm->Bl.count = 0;
+		break;
+	default:
+		break;
+	}
+
+	if (n->norm->Bl.offs) {
+		print_line(".RE", MMAN_nl);
+		assert(Bl_stack_len);
+		Bl_stack_len--;
+		assert(0 == Bl_stack[Bl_stack_len]);
+	} else {
+		outflags |= MMAN_PP | MMAN_nl;
+		outflags &= ~(MMAN_sp | MMAN_br);
+	}
+
+	/* Maybe we are inside an enclosing list? */
+	if (NULL != n->parent->next)
+		mid_it();
+
+}
+
+static void
+pre_br(DECL_ARGS)
+{
+	outflags |= MMAN_br;
+}
+
+static int
+pre_dl(DECL_ARGS)
+{
+
+	print_offs("6n", 0);
+	return 1;
+}
+
+static void
+post_dl(DECL_ARGS)
+{
+
+	print_line(".RE", MMAN_nl);
+
+	/* Maybe we are inside an enclosing list? */
+	if (NULL != n->parent->next)
+		mid_it();
+}
+
+static int
+pre_em(DECL_ARGS)
+{
+
+	font_push('I');
+	return 1;
+}
+
+static int
+pre_en(DECL_ARGS)
+{
+
+	if (NULL == n->norm->Es ||
+	    NULL == n->norm->Es->child)
+		return 1;
+
+	print_word(n->norm->Es->child->string);
+	outflags &= ~MMAN_spc;
+	return 1;
+}
+
+static void
+post_en(DECL_ARGS)
+{
+
+	if (NULL == n->norm->Es ||
+	    NULL == n->norm->Es->child ||
+	    NULL == n->norm->Es->child->next)
+		return;
+
+	outflags &= ~MMAN_spc;
+	print_word(n->norm->Es->child->next->string);
+	return;
+}
+
+static int
+pre_eo(DECL_ARGS)
+{
+
+	if (n->end == ENDBODY_NOT &&
+	    n->parent->head->child == NULL &&
+	    n->child != NULL &&
+	    n->child->end != ENDBODY_NOT)
+		print_word("\\&");
+	else if (n->end != ENDBODY_NOT ? n->child != NULL :
+	    n->parent->head->child != NULL && (n->child != NULL ||
+	    (n->parent->tail != NULL && n->parent->tail->child != NULL)))
+		outflags &= ~(MMAN_spc | MMAN_nl);
+	return 1;
+}
+
+static void
+post_eo(DECL_ARGS)
+{
+	int	 body, tail;
+
+	if (n->end != ENDBODY_NOT) {
+		outflags |= MMAN_spc;
+		return;
+	}
+
+	body = n->child != NULL || n->parent->head->child != NULL;
+	tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
+
+	if (body && tail)
+		outflags &= ~MMAN_spc;
+	else if ( ! (body || tail))
+		print_word("\\&");
+	else if ( ! tail)
+		outflags |= MMAN_spc;
+}
+
+static int
+pre_fa(DECL_ARGS)
+{
+	int	 am_Fa;
+
+	am_Fa = MDOC_Fa == n->tok;
+
+	if (am_Fa)
+		n = n->child;
+
+	while (NULL != n) {
+		font_push('I');
+		if (am_Fa || NODE_SYNPRETTY & n->flags)
+			outflags |= MMAN_nbrword;
+		print_node(meta, n);
+		font_pop();
+		if (NULL != (n = n->next))
+			print_word(",");
+	}
+	return 0;
+}
+
+static void
+post_fa(DECL_ARGS)
+{
+
+	if (NULL != n->next && MDOC_Fa == n->next->tok)
+		print_word(",");
+}
+
+static int
+pre_fd(DECL_ARGS)
+{
+
+	pre_syn(n);
+	font_push('B');
+	return 1;
+}
+
+static void
+post_fd(DECL_ARGS)
+{
+
+	font_pop();
+	outflags |= MMAN_br;
+}
+
+static int
+pre_fl(DECL_ARGS)
+{
+
+	font_push('B');
+	print_word("\\-");
+	if (n->child != NULL)
+		outflags &= ~MMAN_spc;
+	return 1;
+}
+
+static void
+post_fl(DECL_ARGS)
+{
+
+	font_pop();
+	if (!(n->child != NULL ||
+	    n->next == NULL ||
+	    n->next->type == ROFFT_TEXT ||
+	    n->next->flags & NODE_LINE))
+		outflags &= ~MMAN_spc;
+}
+
+static int
+pre_fn(DECL_ARGS)
+{
+
+	pre_syn(n);
+
+	n = n->child;
+	if (NULL == n)
+		return 0;
+
+	if (NODE_SYNPRETTY & n->flags)
+		print_block(".HP 4n", MMAN_nl);
+
+	font_push('B');
+	print_node(meta, n);
+	font_pop();
+	outflags &= ~MMAN_spc;
+	print_word("(");
+	outflags &= ~MMAN_spc;
+
+	n = n->next;
+	if (NULL != n)
+		pre_fa(meta, n);
+	return 0;
+}
+
+static void
+post_fn(DECL_ARGS)
+{
+
+	print_word(")");
+	if (NODE_SYNPRETTY & n->flags) {
+		print_word(";");
+		outflags |= MMAN_PP;
+	}
+}
+
+static int
+pre_fo(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		pre_syn(n);
+		break;
+	case ROFFT_HEAD:
+		if (n->child == NULL)
+			return 0;
+		if (NODE_SYNPRETTY & n->flags)
+			print_block(".HP 4n", MMAN_nl);
+		font_push('B');
+		break;
+	case ROFFT_BODY:
+		outflags &= ~(MMAN_spc | MMAN_nl);
+		print_word("(");
+		outflags &= ~MMAN_spc;
+		break;
+	default:
+		break;
+	}
+	return 1;
+}
+
+static void
+post_fo(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		if (n->child != NULL)
+			font_pop();
+		break;
+	case ROFFT_BODY:
+		post_fn(meta, n);
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_Ft(DECL_ARGS)
+{
+
+	pre_syn(n);
+	font_push('I');
+	return 1;
+}
+
+static void
+pre_ft(DECL_ARGS)
+{
+	print_line(".ft", 0);
+	print_word(n->child->string);
+	outflags |= MMAN_nl;
+}
+
+static int
+pre_in(DECL_ARGS)
+{
+
+	if (NODE_SYNPRETTY & n->flags) {
+		pre_syn(n);
+		font_push('B');
+		print_word("#include <");
+		outflags &= ~MMAN_spc;
+	} else {
+		print_word("<");
+		outflags &= ~MMAN_spc;
+		font_push('I');
+	}
+	return 1;
+}
+
+static void
+post_in(DECL_ARGS)
+{
+
+	if (NODE_SYNPRETTY & n->flags) {
+		outflags &= ~MMAN_spc;
+		print_word(">");
+		font_pop();
+		outflags |= MMAN_br;
+	} else {
+		font_pop();
+		outflags &= ~MMAN_spc;
+		print_word(">");
+	}
+}
+
+static int
+pre_it(DECL_ARGS)
+{
+	const struct roff_node *bln;
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		outflags |= MMAN_PP | MMAN_nl;
+		bln = n->parent->parent;
+		if (0 == bln->norm->Bl.comp ||
+		    (NULL == n->parent->prev &&
+		     NULL == bln->parent->prev))
+			outflags |= MMAN_sp;
+		outflags &= ~MMAN_br;
+		switch (bln->norm->Bl.type) {
+		case LIST_item:
+			return 0;
+		case LIST_inset:
+		case LIST_diag:
+		case LIST_ohang:
+			if (bln->norm->Bl.type == LIST_diag)
+				print_line(".B \"", 0);
+			else
+				print_line(".R \"", 0);
+			outflags &= ~MMAN_spc;
+			return 1;
+		case LIST_bullet:
+		case LIST_dash:
+		case LIST_hyphen:
+			print_width(&bln->norm->Bl, NULL);
+			TPremain = 0;
+			outflags |= MMAN_nl;
+			font_push('B');
+			if (LIST_bullet == bln->norm->Bl.type)
+				print_word("\\(bu");
+			else
+				print_word("-");
+			font_pop();
+			outflags |= MMAN_nl;
+			return 0;
+		case LIST_enum:
+			print_width(&bln->norm->Bl, NULL);
+			TPremain = 0;
+			outflags |= MMAN_nl;
+			print_count(&bln->norm->Bl.count);
+			outflags |= MMAN_nl;
+			return 0;
+		case LIST_hang:
+			print_width(&bln->norm->Bl, n->child);
+			TPremain = 0;
+			outflags |= MMAN_nl;
+			return 1;
+		case LIST_tag:
+			print_width(&bln->norm->Bl, n->child);
+			putchar('\n');
+			outflags &= ~MMAN_spc;
+			return 1;
+		default:
+			return 1;
+		}
+	default:
+		break;
+	}
+	return 1;
+}
+
+/*
+ * This function is called after closing out an indented block.
+ * If we are inside an enclosing list, restore its indentation.
+ */
+static void
+mid_it(void)
+{
+	char		 buf[24];
+
+	/* Nothing to do outside a list. */
+	if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1])
+		return;
+
+	/* The indentation has already been set up. */
+	if (Bl_stack_post[Bl_stack_len - 1])
+		return;
+
+	/* Restore the indentation of the enclosing list. */
+	print_line(".RS", MMAN_Bk_susp);
+	(void)snprintf(buf, sizeof(buf), "%dn",
+	    Bl_stack[Bl_stack_len - 1]);
+	print_word(buf);
+
+	/* Remeber to close out this .RS block later. */
+	Bl_stack_post[Bl_stack_len - 1] = 1;
+}
+
+static void
+post_it(DECL_ARGS)
+{
+	const struct roff_node *bln;
+
+	bln = n->parent->parent;
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		switch (bln->norm->Bl.type) {
+		case LIST_diag:
+			outflags &= ~MMAN_spc;
+			print_word("\\ ");
+			break;
+		case LIST_ohang:
+			outflags |= MMAN_br;
+			break;
+		default:
+			break;
+		}
+		break;
+	case ROFFT_BODY:
+		switch (bln->norm->Bl.type) {
+		case LIST_bullet:
+		case LIST_dash:
+		case LIST_hyphen:
+		case LIST_enum:
+		case LIST_hang:
+		case LIST_tag:
+			assert(Bl_stack_len);
+			Bl_stack[--Bl_stack_len] = 0;
+
+			/*
+			 * Our indentation had to be restored
+			 * after a child display or child list.
+			 * Close out that indentation block now.
+			 */
+			if (Bl_stack_post[Bl_stack_len]) {
+				print_line(".RE", MMAN_nl);
+				Bl_stack_post[Bl_stack_len] = 0;
+			}
+			break;
+		case LIST_column:
+			if (NULL != n->next) {
+				putchar('\t');
+				outflags &= ~MMAN_spc;
+			}
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+post_lb(DECL_ARGS)
+{
+
+	if (SEC_LIBRARY == n->sec)
+		outflags |= MMAN_br;
+}
+
+static int
+pre_lk(DECL_ARGS)
+{
+	const struct roff_node *link, *descr, *punct;
+	int display;
+
+	if ((link = n->child) == NULL)
+		return 0;
+
+	/* Find beginning of trailing punctuation. */
+	punct = n->last;
+	while (punct != link && punct->flags & NODE_DELIMC)
+		punct = punct->prev;
+	punct = punct->next;
+
+	/* Link text. */
+	if ((descr = link->next) != NULL && descr != punct) {
+		font_push('I');
+		while (descr != punct) {
+			print_word(descr->string);
+			descr = descr->next;
+		}
+		font_pop();
+		print_word(":");
+	}
+
+	/* Link target. */
+	display = man_strlen(link->string) >= 26;
+	if (display) {
+		print_line(".RS", MMAN_Bk_susp);
+		print_word("6n");
+		outflags |= MMAN_nl;
+	}
+	font_push('B');
+	print_word(link->string);
+	font_pop();
+
+	/* Trailing punctuation. */
+	while (punct != NULL) {
+		print_word(punct->string);
+		punct = punct->next;
+	}
+	if (display)
+		print_line(".RE", MMAN_nl);
+	return 0;
+}
+
+static void
+pre_onearg(DECL_ARGS)
+{
+	outflags |= MMAN_nl;
+	print_word(".");
+	outflags &= ~MMAN_spc;
+	print_word(roff_name[n->tok]);
+	if (n->child != NULL)
+		print_word(n->child->string);
+	outflags |= MMAN_nl;
+	if (n->tok == ROFF_ce)
+		for (n = n->child->next; n != NULL; n = n->next)
+			print_node(meta, n);
+}
+
+static int
+pre_li(DECL_ARGS)
+{
+
+	font_push('R');
+	return 1;
+}
+
+static int
+pre_nm(DECL_ARGS)
+{
+	char	*name;
+
+	if (n->type == ROFFT_BLOCK) {
+		outflags |= MMAN_Bk;
+		pre_syn(n);
+	}
+	if (n->type != ROFFT_ELEM && n->type != ROFFT_HEAD)
+		return 1;
+	name = n->child == NULL ? NULL : n->child->string;
+	if (NULL == name)
+		return 0;
+	if (n->type == ROFFT_HEAD) {
+		if (NULL == n->parent->prev)
+			outflags |= MMAN_sp;
+		print_block(".HP", 0);
+		printf(" %dn", man_strlen(name) + 1);
+		outflags |= MMAN_nl;
+	}
+	font_push('B');
+	return 1;
+}
+
+static void
+post_nm(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		outflags &= ~MMAN_Bk;
+		break;
+	case ROFFT_HEAD:
+	case ROFFT_ELEM:
+		if (n->child != NULL && n->child->string != NULL)
+			font_pop();
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+pre_no(DECL_ARGS)
+{
+
+	outflags |= MMAN_spc_force;
+	return 1;
+}
+
+static int
+pre_ns(DECL_ARGS)
+{
+
+	outflags &= ~MMAN_spc;
+	return 0;
+}
+
+static void
+post_pf(DECL_ARGS)
+{
+
+	if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
+		outflags &= ~MMAN_spc;
+}
+
+static int
+pre_pp(DECL_ARGS)
+{
+
+	if (MDOC_It != n->parent->tok)
+		outflags |= MMAN_PP;
+	outflags |= MMAN_sp | MMAN_nl;
+	outflags &= ~MMAN_br;
+	return 0;
+}
+
+static int
+pre_rs(DECL_ARGS)
+{
+
+	if (SEC_SEE_ALSO == n->sec) {
+		outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
+		outflags &= ~MMAN_br;
+	}
+	return 1;
+}
+
+static int
+pre_skip(DECL_ARGS)
+{
+
+	return 0;
+}
+
+static int
+pre_sm(DECL_ARGS)
+{
+
+	if (NULL == n->child)
+		outflags ^= MMAN_Sm;
+	else if (0 == strcmp("on", n->child->string))
+		outflags |= MMAN_Sm;
+	else
+		outflags &= ~MMAN_Sm;
+
+	if (MMAN_Sm & outflags)
+		outflags |= MMAN_spc;
+
+	return 0;
+}
+
+static void
+pre_sp(DECL_ARGS)
+{
+	if (outflags & MMAN_PP) {
+		outflags &= ~MMAN_PP;
+		print_line(".PP", 0);
+	} else {
+		print_line(".sp", 0);
+		if (n->child != NULL)
+			print_word(n->child->string);
+	}
+	outflags |= MMAN_nl;
+}
+
+static int
+pre_sy(DECL_ARGS)
+{
+
+	font_push('B');
+	return 1;
+}
+
+static void
+pre_ta(DECL_ARGS)
+{
+	print_line(".ta", 0);
+	for (n = n->child; n != NULL; n = n->next)
+		print_word(n->string);
+	outflags |= MMAN_nl;
+}
+
+static int
+pre_vt(DECL_ARGS)
+{
+
+	if (NODE_SYNPRETTY & n->flags) {
+		switch (n->type) {
+		case ROFFT_BLOCK:
+			pre_syn(n);
+			return 1;
+		case ROFFT_BODY:
+			break;
+		default:
+			return 0;
+		}
+	}
+	font_push('I');
+	return 1;
+}
+
+static void
+post_vt(DECL_ARGS)
+{
+
+	if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY)
+		return;
+	font_pop();
+}
+
+static int
+pre_xr(DECL_ARGS)
+{
+
+	n = n->child;
+	if (NULL == n)
+		return 0;
+	print_node(meta, n);
+	n = n->next;
+	if (NULL == n)
+		return 0;
+	outflags &= ~MMAN_spc;
+	print_word("(");
+	print_node(meta, n);
+	print_word(")");
+	return 0;
+}

Added: vendor/mandoc/dist/mdoc_markdown.c
===================================================================
--- vendor/mandoc/dist/mdoc_markdown.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_markdown.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1569 @@
+/*	$Id: mdoc_markdown.c,v 1.23 2017/06/14 01:31:26 schwarze Exp $ */
+/*
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "main.h"
+
+struct	md_act {
+	int		(*cond)(struct roff_node *n);
+	int		(*pre)(struct roff_node *n);
+	void		(*post)(struct roff_node *n);
+	const char	 *prefix; /* pre-node string constant */
+	const char	 *suffix; /* post-node string constant */
+};
+
+static	void	 md_nodelist(struct roff_node *);
+static	void	 md_node(struct roff_node *);
+static	const char *md_stack(char c);
+static	void	 md_preword(void);
+static	void	 md_rawword(const char *);
+static	void	 md_word(const char *);
+static	void	 md_named(const char *);
+static	void	 md_char(unsigned char);
+static	void	 md_uri(const char *);
+
+static	int	 md_cond_head(struct roff_node *);
+static	int	 md_cond_body(struct roff_node *);
+
+static	int	 md_pre_raw(struct roff_node *);
+static	int	 md_pre_word(struct roff_node *);
+static	int	 md_pre_skip(struct roff_node *);
+static	void	 md_pre_syn(struct roff_node *);
+static	int	 md_pre_An(struct roff_node *);
+static	int	 md_pre_Ap(struct roff_node *);
+static	int	 md_pre_Bd(struct roff_node *);
+static	int	 md_pre_Bk(struct roff_node *);
+static	int	 md_pre_Bl(struct roff_node *);
+static	int	 md_pre_D1(struct roff_node *);
+static	int	 md_pre_Dl(struct roff_node *);
+static	int	 md_pre_En(struct roff_node *);
+static	int	 md_pre_Eo(struct roff_node *);
+static	int	 md_pre_Fa(struct roff_node *);
+static	int	 md_pre_Fd(struct roff_node *);
+static	int	 md_pre_Fn(struct roff_node *);
+static	int	 md_pre_Fo(struct roff_node *);
+static	int	 md_pre_In(struct roff_node *);
+static	int	 md_pre_It(struct roff_node *);
+static	int	 md_pre_Lk(struct roff_node *);
+static	int	 md_pre_Mt(struct roff_node *);
+static	int	 md_pre_Nd(struct roff_node *);
+static	int	 md_pre_Nm(struct roff_node *);
+static	int	 md_pre_No(struct roff_node *);
+static	int	 md_pre_Ns(struct roff_node *);
+static	int	 md_pre_Pp(struct roff_node *);
+static	int	 md_pre_Rs(struct roff_node *);
+static	int	 md_pre_Sh(struct roff_node *);
+static	int	 md_pre_Sm(struct roff_node *);
+static	int	 md_pre_Vt(struct roff_node *);
+static	int	 md_pre_Xr(struct roff_node *);
+static	int	 md_pre__T(struct roff_node *);
+static	int	 md_pre_br(struct roff_node *);
+
+static	void	 md_post_raw(struct roff_node *);
+static	void	 md_post_word(struct roff_node *);
+static	void	 md_post_pc(struct roff_node *);
+static	void	 md_post_Bk(struct roff_node *);
+static	void	 md_post_Bl(struct roff_node *);
+static	void	 md_post_D1(struct roff_node *);
+static	void	 md_post_En(struct roff_node *);
+static	void	 md_post_Eo(struct roff_node *);
+static	void	 md_post_Fa(struct roff_node *);
+static	void	 md_post_Fd(struct roff_node *);
+static	void	 md_post_Fl(struct roff_node *);
+static	void	 md_post_Fn(struct roff_node *);
+static	void	 md_post_Fo(struct roff_node *);
+static	void	 md_post_In(struct roff_node *);
+static	void	 md_post_It(struct roff_node *);
+static	void	 md_post_Lb(struct roff_node *);
+static	void	 md_post_Nm(struct roff_node *);
+static	void	 md_post_Pf(struct roff_node *);
+static	void	 md_post_Vt(struct roff_node *);
+static	void	 md_post__T(struct roff_node *);
+
+static	const struct md_act __md_acts[MDOC_MAX - MDOC_Dd] = {
+	{ NULL, NULL, NULL, NULL, NULL }, /* Dd */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Dt */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Os */
+	{ NULL, md_pre_Sh, NULL, NULL, NULL }, /* Sh */
+	{ NULL, md_pre_Sh, NULL, NULL, NULL }, /* Ss */
+	{ NULL, md_pre_Pp, NULL, NULL, NULL }, /* Pp */
+	{ md_cond_body, md_pre_D1, md_post_D1, NULL, NULL }, /* D1 */
+	{ md_cond_body, md_pre_Dl, md_post_D1, NULL, NULL }, /* Dl */
+	{ md_cond_body, md_pre_Bd, md_post_D1, NULL, NULL }, /* Bd */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ed */
+	{ md_cond_body, md_pre_Bl, md_post_Bl, NULL, NULL }, /* Bl */
+	{ NULL, NULL, NULL, NULL, NULL }, /* El */
+	{ NULL, md_pre_It, md_post_It, NULL, NULL }, /* It */
+	{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Ad */
+	{ NULL, md_pre_An, NULL, NULL, NULL }, /* An */
+	{ NULL, md_pre_Ap, NULL, NULL, NULL }, /* Ap */
+	{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Ar */
+	{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Cd */
+	{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Cm */
+	{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Dv */
+	{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Er */
+	{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Ev */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ex */
+	{ NULL, md_pre_Fa, md_post_Fa, NULL, NULL }, /* Fa */
+	{ NULL, md_pre_Fd, md_post_Fd, "**", "**" }, /* Fd */
+	{ NULL, md_pre_raw, md_post_Fl, "**-", "**" }, /* Fl */
+	{ NULL, md_pre_Fn, md_post_Fn, NULL, NULL }, /* Fn */
+	{ NULL, md_pre_Fd, md_post_raw, "*", "*" }, /* Ft */
+	{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Ic */
+	{ NULL, md_pre_In, md_post_In, NULL, NULL }, /* In */
+	{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Li */
+	{ md_cond_head, md_pre_Nd, NULL, NULL, NULL }, /* Nd */
+	{ NULL, md_pre_Nm, md_post_Nm, "**", "**" }, /* Nm */
+	{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Op */
+	{ NULL, md_pre_Fd, md_post_raw, "*", "*" }, /* Ot */
+	{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Pa */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Rv */
+	{ NULL, NULL, NULL, NULL, NULL }, /* St */
+	{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Va */
+	{ NULL, md_pre_Vt, md_post_Vt, "*", "*" }, /* Vt */
+	{ NULL, md_pre_Xr, NULL, NULL, NULL }, /* Xr */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %A */
+	{ NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %B */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %D */
+	{ NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %I */
+	{ NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %J */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %N */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %O */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %P */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %R */
+	{ NULL, md_pre__T, md_post__T, NULL, NULL }, /* %T */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %V */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ac */
+	{ md_cond_body, md_pre_word, md_post_word, "<", ">" }, /* Ao */
+	{ md_cond_body, md_pre_word, md_post_word, "<", ">" }, /* Aq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* At */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Bc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Bf XXX not implemented */
+	{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Bo */
+	{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Bq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Bsx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Bx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Db */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Dc */
+	{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Do */
+	{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Dq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ec */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ef */
+	{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Em */
+	{ md_cond_body, md_pre_Eo, md_post_Eo, NULL, NULL }, /* Eo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Fx */
+	{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Ms */
+	{ NULL, md_pre_No, NULL, NULL, NULL }, /* No */
+	{ NULL, md_pre_Ns, NULL, NULL, NULL }, /* Ns */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Nx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ox */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Pc */
+	{ NULL, NULL, md_post_Pf, NULL, NULL }, /* Pf */
+	{ md_cond_body, md_pre_word, md_post_word, "(", ")" }, /* Po */
+	{ md_cond_body, md_pre_word, md_post_word, "(", ")" }, /* Pq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Qc */
+	{ md_cond_body, md_pre_raw, md_post_raw, "'`", "`'" }, /* Ql */
+	{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Qo */
+	{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Qq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Re */
+	{ md_cond_body, md_pre_Rs, NULL, NULL, NULL }, /* Rs */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Sc */
+	{ md_cond_body, md_pre_word, md_post_word, "'", "'" }, /* So */
+	{ md_cond_body, md_pre_word, md_post_word, "'", "'" }, /* Sq */
+	{ NULL, md_pre_Sm, NULL, NULL, NULL }, /* Sm */
+	{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Sx */
+	{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Sy */
+	{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Tn */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ux */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Xc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Xo */
+	{ NULL, md_pre_Fo, md_post_Fo, "**", "**" }, /* Fo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Fc */
+	{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Oo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Oc */
+	{ NULL, md_pre_Bk, md_post_Bk, NULL, NULL }, /* Bk */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ek */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Bt */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Hf */
+	{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Fr */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ud */
+	{ NULL, NULL, md_post_Lb, NULL, NULL }, /* Lb */
+	{ NULL, md_pre_Pp, NULL, NULL, NULL }, /* Lp */
+	{ NULL, md_pre_Lk, NULL, NULL, NULL }, /* Lk */
+	{ NULL, md_pre_Mt, NULL, NULL, NULL }, /* Mt */
+	{ md_cond_body, md_pre_word, md_post_word, "{", "}" }, /* Brq */
+	{ md_cond_body, md_pre_word, md_post_word, "{", "}" }, /* Bro */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Brc */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %C */
+	{ NULL, md_pre_skip, NULL, NULL, NULL }, /* Es */
+	{ md_cond_body, md_pre_En, md_post_En, NULL, NULL }, /* En */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Dx */
+	{ NULL, NULL, md_post_pc, NULL, NULL }, /* %Q */
+	{ NULL, md_pre_Lk, md_post_pc, NULL, NULL }, /* %U */
+	{ NULL, NULL, NULL, NULL, NULL }, /* Ta */
+};
+static	const struct md_act *const md_acts = __md_acts - MDOC_Dd;
+
+static	int	 outflags;
+#define	MD_spc		 (1 << 0)  /* Blank character before next word. */
+#define	MD_spc_force	 (1 << 1)  /* Even before trailing punctuation. */
+#define	MD_nonl		 (1 << 2)  /* Prevent linebreak in markdown code. */
+#define	MD_nl		 (1 << 3)  /* Break markdown code line. */
+#define	MD_br		 (1 << 4)  /* Insert an output line break. */
+#define	MD_sp		 (1 << 5)  /* Insert a paragraph break. */
+#define	MD_Sm		 (1 << 6)  /* Horizontal spacing mode. */
+#define	MD_Bk		 (1 << 7)  /* Word keep mode. */
+#define	MD_An_split	 (1 << 8)  /* Author mode is "split". */
+#define	MD_An_nosplit	 (1 << 9)  /* Author mode is "nosplit". */
+
+static	int	 escflags; /* Escape in generated markdown code: */
+#define	ESC_BOL	 (1 << 0)  /* "#*+-" near the beginning of a line. */
+#define	ESC_NUM	 (1 << 1)  /* "." after a leading number. */
+#define	ESC_HYP	 (1 << 2)  /* "(" immediately after "]". */
+#define	ESC_SQU	 (1 << 4)  /* "]" when "[" is open. */
+#define	ESC_FON	 (1 << 5)  /* "*" immediately after unrelated "*". */
+#define	ESC_EOL	 (1 << 6)  /* " " at the and of a line. */
+
+static	int	 code_blocks, quote_blocks, list_blocks;
+static	int	 outcount;
+
+void
+markdown_mdoc(void *arg, const struct roff_man *mdoc)
+{
+	outflags = MD_Sm;
+	md_word(mdoc->meta.title);
+	if (mdoc->meta.msec != NULL) {
+		outflags &= ~MD_spc;
+		md_word("(");
+		md_word(mdoc->meta.msec);
+		md_word(")");
+	}
+	md_word("-");
+	md_word(mdoc->meta.vol);
+	if (mdoc->meta.arch != NULL) {
+		md_word("(");
+		md_word(mdoc->meta.arch);
+		md_word(")");
+	}
+	outflags |= MD_sp;
+
+	md_nodelist(mdoc->first->child);
+
+	outflags |= MD_sp;
+	md_word(mdoc->meta.os);
+	md_word("-");
+	md_word(mdoc->meta.date);
+	putchar('\n');
+}
+
+static void
+md_nodelist(struct roff_node *n)
+{
+	while (n != NULL) {
+		md_node(n);
+		n = n->next;
+	}
+}
+
+static void
+md_node(struct roff_node *n)
+{
+	const struct md_act	*act;
+	int			 cond, process_children;
+
+	if (n->flags & NODE_NOPRT)
+		return;
+
+	if (outflags & MD_nonl)
+		outflags &= ~(MD_nl | MD_sp);
+	else if (outflags & MD_spc && n->flags & NODE_LINE)
+		outflags |= MD_nl;
+
+	act = NULL;
+	cond = 0;
+	process_children = 1;
+	n->flags &= ~NODE_ENDED;
+
+	if (n->type == ROFFT_TEXT) {
+		if (n->flags & NODE_DELIMC)
+			outflags &= ~(MD_spc | MD_spc_force);
+		else if (outflags & MD_Sm)
+			outflags |= MD_spc_force;
+		md_word(n->string);
+		if (n->flags & NODE_DELIMO)
+			outflags &= ~(MD_spc | MD_spc_force);
+		else if (outflags & MD_Sm)
+			outflags |= MD_spc;
+	} else if (n->tok < ROFF_MAX) {
+		switch (n->tok) {
+		case ROFF_br:
+			process_children = md_pre_br(n);
+			break;
+		case ROFF_sp:
+			process_children = md_pre_Pp(n);
+			break;
+		default:
+			process_children = 0;
+			break;
+		}
+	} else {
+		assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+		act = md_acts + n->tok;
+		cond = act->cond == NULL || (*act->cond)(n);
+		if (cond && act->pre != NULL &&
+		    (n->end == ENDBODY_NOT || n->child != NULL))
+			process_children = (*act->pre)(n);
+	}
+
+	if (process_children && n->child != NULL)
+		md_nodelist(n->child);
+
+	if (n->flags & NODE_ENDED)
+		return;
+
+	if (cond && act->post != NULL)
+		(*act->post)(n);
+
+	if (n->end != ENDBODY_NOT)
+		n->body->flags |= NODE_ENDED;
+}
+
+static const char *
+md_stack(char c)
+{
+	static char	*stack;
+	static size_t	 sz;
+	static size_t	 cur;
+
+	switch (c) {
+	case '\0':
+		break;
+	case (char)-1:
+		assert(cur);
+		stack[--cur] = '\0';
+		break;
+	default:
+		if (cur + 1 >= sz) {
+			sz += 8;
+			stack = mandoc_realloc(stack, sz);
+		}
+		stack[cur] = c;
+		stack[++cur] = '\0';
+		break;
+	}
+	return stack == NULL ? "" : stack;
+}
+
+/*
+ * Handle vertical and horizontal spacing.
+ */
+static void
+md_preword(void)
+{
+	const char	*cp;
+
+	/*
+	 * If a list block is nested inside a code block or a blockquote,
+	 * blank lines for paragraph breaks no longer work; instead,
+	 * they terminate the list.  Work around this markdown issue
+	 * by using mere line breaks instead.
+	 */
+
+	if (list_blocks && outflags & MD_sp) {
+		outflags &= ~MD_sp;
+		outflags |= MD_br;
+	}
+
+	/*
+	 * End the old line if requested.
+	 * Escape whitespace at the end of the markdown line
+	 * such that it won't look like an output line break.
+	 */
+
+	if (outflags & MD_sp)
+		putchar('\n');
+	else if (outflags & MD_br) {
+		putchar(' ');
+		putchar(' ');
+	} else if (outflags & MD_nl && escflags & ESC_EOL)
+		md_named("zwnj");
+
+	/* Start a new line if necessary. */
+
+	if (outflags & (MD_nl | MD_br | MD_sp)) {
+		putchar('\n');
+		for (cp = md_stack('\0'); *cp != '\0'; cp++) {
+			putchar(*cp);
+			if (*cp == '>')
+				putchar(' ');
+		}
+		outflags &= ~(MD_nl | MD_br | MD_sp);
+		escflags = ESC_BOL;
+		outcount = 0;
+
+	/* Handle horizontal spacing. */
+
+	} else if (outflags & MD_spc) {
+		if (outflags & MD_Bk)
+			fputs(" ", stdout);
+		else
+			putchar(' ');
+		escflags &= ~ESC_FON;
+		outcount++;
+	}
+
+	outflags &= ~(MD_spc_force | MD_nonl);
+	if (outflags & MD_Sm)
+		outflags |= MD_spc;
+	else
+		outflags &= ~MD_spc;
+}
+
+/*
+ * Print markdown syntax elements.
+ * Can also be used for constant strings when neither escaping
+ * nor delimiter handling is required.
+ */
+static void
+md_rawword(const char *s)
+{
+	md_preword();
+
+	if (*s == '\0')
+		return;
+
+	if (escflags & ESC_FON) {
+		escflags &= ~ESC_FON;
+		if (*s == '*' && !code_blocks)
+			fputs("‌", stdout);
+	}
+
+	while (*s != '\0') {
+		switch(*s) {
+		case '*':
+			if (s[1] == '\0')
+				escflags |= ESC_FON;
+			break;
+		case '[':
+			escflags |= ESC_SQU;
+			break;
+		case ']':
+			escflags |= ESC_HYP;
+			escflags &= ~ESC_SQU;
+			break;
+		default:
+			break;
+		}
+		md_char(*s++);
+	}
+	if (s[-1] == ' ')
+		escflags |= ESC_EOL;
+	else
+		escflags &= ~ESC_EOL;
+}
+
+/*
+ * Print text and mdoc(7) syntax elements.
+ */
+static void
+md_word(const char *s)
+{
+	const char	*seq, *prevfont, *currfont, *nextfont;
+	char		 c;
+	int		 bs, sz, uc, breakline;
+
+	/* No spacing before closing delimiters. */
+	if (s[0] != '\0' && s[1] == '\0' &&
+	    strchr("!),.:;?]", s[0]) != NULL &&
+	    (outflags & MD_spc_force) == 0)
+		outflags &= ~MD_spc;
+
+	md_preword();
+
+	if (*s == '\0')
+		return;
+
+	/* No spacing after opening delimiters. */
+	if ((s[0] == '(' || s[0] == '[') && s[1] == '\0')
+		outflags &= ~MD_spc;
+
+	breakline = 0;
+	prevfont = currfont = "";
+	while ((c = *s++) != '\0') {
+		bs = 0;
+		switch(c) {
+		case ASCII_NBRSP:
+			if (code_blocks)
+				c = ' ';
+			else {
+				md_named("nbsp");
+				c = '\0';
+			}
+			break;
+		case ASCII_HYPH:
+			bs = escflags & ESC_BOL && !code_blocks;
+			c = '-';
+			break;
+		case ASCII_BREAK:
+			continue;
+		case '#':
+		case '+':
+		case '-':
+			bs = escflags & ESC_BOL && !code_blocks;
+			break;
+		case '(':
+			bs = escflags & ESC_HYP && !code_blocks;
+			break;
+		case ')':
+			bs = escflags & ESC_NUM && !code_blocks;
+			break;
+		case '*':
+		case '[':
+		case '_':
+		case '`':
+			bs = !code_blocks;
+			break;
+		case '.':
+			bs = escflags & ESC_NUM && !code_blocks;
+			break;
+		case '<':
+			if (code_blocks == 0) {
+				md_named("lt");
+				c = '\0';
+			}
+			break;
+		case '=':
+			if (escflags & ESC_BOL && !code_blocks) {
+				md_named("equals");
+				c = '\0';
+			}
+			break;
+		case '>':
+			if (code_blocks == 0) {
+				md_named("gt");
+				c = '\0';
+			}
+			break;
+		case '\\':
+			uc = 0;
+			nextfont = NULL;
+			switch (mandoc_escape(&s, &seq, &sz)) {
+			case ESCAPE_UNICODE:
+				uc = mchars_num2uc(seq + 1, sz - 1);
+				break;
+			case ESCAPE_NUMBERED:
+				uc = mchars_num2char(seq, sz);
+				break;
+			case ESCAPE_SPECIAL:
+				uc = mchars_spec2cp(seq, sz);
+				break;
+			case ESCAPE_FONTBOLD:
+				nextfont = "**";
+				break;
+			case ESCAPE_FONTITALIC:
+				nextfont = "*";
+				break;
+			case ESCAPE_FONTBI:
+				nextfont = "***";
+				break;
+			case ESCAPE_FONT:
+			case ESCAPE_FONTROMAN:
+				nextfont = "";
+				break;
+			case ESCAPE_FONTPREV:
+				nextfont = prevfont;
+				break;
+			case ESCAPE_BREAK:
+				breakline = 1;
+				break;
+			case ESCAPE_NOSPACE:
+			case ESCAPE_SKIPCHAR:
+			case ESCAPE_OVERSTRIKE:
+				/* XXX not implemented */
+				/* FALLTHROUGH */
+			case ESCAPE_ERROR:
+			default:
+				break;
+			}
+			if (nextfont != NULL && !code_blocks) {
+				if (*currfont != '\0') {
+					outflags &= ~MD_spc;
+					md_rawword(currfont);
+				}
+				prevfont = currfont;
+				currfont = nextfont;
+				if (*currfont != '\0') {
+					outflags &= ~MD_spc;
+					md_rawword(currfont);
+				}
+			}
+			if (uc) {
+				if ((uc < 0x20 && uc != 0x09) ||
+				    (uc > 0x7E && uc < 0xA0))
+					uc = 0xFFFD;
+				if (code_blocks) {
+					seq = mchars_uc2str(uc);
+					fputs(seq, stdout);
+					outcount += strlen(seq);
+				} else {
+					printf("&#%d;", uc);
+					outcount++;
+				}
+				escflags &= ~ESC_FON;
+			}
+			c = '\0';
+			break;
+		case ']':
+			bs = escflags & ESC_SQU && !code_blocks;
+			escflags |= ESC_HYP;
+			break;
+		default:
+			break;
+		}
+		if (bs)
+			putchar('\\');
+		md_char(c);
+		if (breakline &&
+		    (*s == '\0' || *s == ' ' || *s == ASCII_NBRSP)) {
+			printf("  \n");
+			breakline = 0;
+			while (*s == ' ' || *s == ASCII_NBRSP)
+				s++;
+		}
+	}
+	if (*currfont != '\0') {
+		outflags &= ~MD_spc;
+		md_rawword(currfont);
+	} else if (s[-2] == ' ')
+		escflags |= ESC_EOL;
+	else
+		escflags &= ~ESC_EOL;
+}
+
+/*
+ * Print a single HTML named character reference.
+ */
+static void
+md_named(const char *s)
+{
+	printf("&%s;", s);
+	escflags &= ~(ESC_FON | ESC_EOL);
+	outcount++;
+}
+
+/*
+ * Print a single raw character and maintain certain escape flags.
+ */
+static void
+md_char(unsigned char c)
+{
+	if (c != '\0') {
+		putchar(c);
+		if (c == '*')
+			escflags |= ESC_FON;
+		else
+			escflags &= ~ESC_FON;
+		outcount++;
+	}
+	if (c != ']')
+		escflags &= ~ESC_HYP;
+	if (c == ' ' || c == '\t' || c == '>')
+		return;
+	if (isdigit(c) == 0)
+		escflags &= ~ESC_NUM;
+	else if (escflags & ESC_BOL)
+		escflags |= ESC_NUM;
+	escflags &= ~ESC_BOL;
+}
+
+static int
+md_cond_head(struct roff_node *n)
+{
+	return n->type == ROFFT_HEAD;
+}
+
+static int
+md_cond_body(struct roff_node *n)
+{
+	return n->type == ROFFT_BODY;
+}
+
+static int
+md_pre_raw(struct roff_node *n)
+{
+	const char	*prefix;
+
+	if ((prefix = md_acts[n->tok].prefix) != NULL) {
+		md_rawword(prefix);
+		outflags &= ~MD_spc;
+		if (*prefix == '`')
+			code_blocks++;
+	}
+	return 1;
+}
+
+static void
+md_post_raw(struct roff_node *n)
+{
+	const char	*suffix;
+
+	if ((suffix = md_acts[n->tok].suffix) != NULL) {
+		outflags &= ~(MD_spc | MD_nl);
+		md_rawword(suffix);
+		if (*suffix == '`')
+			code_blocks--;
+	}
+}
+
+static int
+md_pre_word(struct roff_node *n)
+{
+	const char	*prefix;
+
+	if ((prefix = md_acts[n->tok].prefix) != NULL) {
+		md_word(prefix);
+		outflags &= ~MD_spc;
+	}
+	return 1;
+}
+
+static void
+md_post_word(struct roff_node *n)
+{
+	const char	*suffix;
+
+	if ((suffix = md_acts[n->tok].suffix) != NULL) {
+		outflags &= ~(MD_spc | MD_nl);
+		md_word(suffix);
+	}
+}
+
+static void
+md_post_pc(struct roff_node *n)
+{
+	md_post_raw(n);
+	if (n->parent->tok != MDOC_Rs)
+		return;
+	if (n->next != NULL) {
+		md_word(",");
+		if (n->prev != NULL &&
+		    n->prev->tok == n->tok &&
+		    n->next->tok == n->tok)
+			md_word("and");
+	} else {
+		md_word(".");
+		outflags |= MD_nl;
+	}
+}
+
+static int
+md_pre_skip(struct roff_node *n)
+{
+	return 0;
+}
+
+static void
+md_pre_syn(struct roff_node *n)
+{
+	if (n->prev == NULL || ! (n->flags & NODE_SYNPRETTY))
+		return;
+
+	if (n->prev->tok == n->tok &&
+	    n->tok != MDOC_Ft &&
+	    n->tok != MDOC_Fo &&
+	    n->tok != MDOC_Fn) {
+		outflags |= MD_br;
+		return;
+	}
+
+	switch (n->prev->tok) {
+	case MDOC_Fd:
+	case MDOC_Fn:
+	case MDOC_Fo:
+	case MDOC_In:
+	case MDOC_Vt:
+		outflags |= MD_sp;
+		break;
+	case MDOC_Ft:
+		if (n->tok != MDOC_Fn && n->tok != MDOC_Fo) {
+			outflags |= MD_sp;
+			break;
+		}
+		/* FALLTHROUGH */
+	default:
+		outflags |= MD_br;
+		break;
+	}
+}
+
+static int
+md_pre_An(struct roff_node *n)
+{
+	switch (n->norm->An.auth) {
+	case AUTH_split:
+		outflags &= ~MD_An_nosplit;
+		outflags |= MD_An_split;
+		return 0;
+	case AUTH_nosplit:
+		outflags &= ~MD_An_split;
+		outflags |= MD_An_nosplit;
+		return 0;
+	default:
+		if (outflags & MD_An_split)
+			outflags |= MD_br;
+		else if (n->sec == SEC_AUTHORS &&
+		    ! (outflags & MD_An_nosplit))
+			outflags |= MD_An_split;
+		return 1;
+	}
+}
+
+static int
+md_pre_Ap(struct roff_node *n)
+{
+	outflags &= ~MD_spc;
+	md_word("'");
+	outflags &= ~MD_spc;
+	return 0;
+}
+
+static int
+md_pre_Bd(struct roff_node *n)
+{
+	switch (n->norm->Bd.type) {
+	case DISP_unfilled:
+	case DISP_literal:
+		return md_pre_Dl(n);
+	default:
+		return md_pre_D1(n);
+	}
+}
+
+static int
+md_pre_Bk(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		return 1;
+	case ROFFT_BODY:
+		outflags |= MD_Bk;
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static void
+md_post_Bk(struct roff_node *n)
+{
+	if (n->type == ROFFT_BODY)
+		outflags &= ~MD_Bk;
+}
+
+static int
+md_pre_Bl(struct roff_node *n)
+{
+	n->norm->Bl.count = 0;
+	if (n->norm->Bl.type == LIST_column)
+		md_pre_Dl(n);
+	outflags |= MD_sp;
+	return 1;
+}
+
+static void
+md_post_Bl(struct roff_node *n)
+{
+	n->norm->Bl.count = 0;
+	if (n->norm->Bl.type == LIST_column)
+		md_post_D1(n);
+	outflags |= MD_sp;
+}
+
+static int
+md_pre_D1(struct roff_node *n)
+{
+	/*
+	 * Markdown blockquote syntax does not work inside code blocks.
+	 * The best we can do is fall back to another nested code block.
+	 */
+	if (code_blocks) {
+		md_stack('\t');
+		code_blocks++;
+	} else {
+		md_stack('>');
+		quote_blocks++;
+	}
+	outflags |= MD_sp;
+	return 1;
+}
+
+static void
+md_post_D1(struct roff_node *n)
+{
+	md_stack((char)-1);
+	if (code_blocks)
+		code_blocks--;
+	else
+		quote_blocks--;
+	outflags |= MD_sp;
+}
+
+static int
+md_pre_Dl(struct roff_node *n)
+{
+	/*
+	 * Markdown code block syntax does not work inside blockquotes.
+	 * The best we can do is fall back to another nested blockquote.
+	 */
+	if (quote_blocks) {
+		md_stack('>');
+		quote_blocks++;
+	} else {
+		md_stack('\t');
+		code_blocks++;
+	}
+	outflags |= MD_sp;
+	return 1;
+}
+
+static int
+md_pre_En(struct roff_node *n)
+{
+	if (n->norm->Es == NULL ||
+	    n->norm->Es->child == NULL)
+		return 1;
+
+	md_word(n->norm->Es->child->string);
+	outflags &= ~MD_spc;
+	return 1;
+}
+
+static void
+md_post_En(struct roff_node *n)
+{
+	if (n->norm->Es == NULL ||
+	    n->norm->Es->child == NULL ||
+	    n->norm->Es->child->next == NULL)
+		return;
+
+	outflags &= ~MD_spc;
+	md_word(n->norm->Es->child->next->string);
+}
+
+static int
+md_pre_Eo(struct roff_node *n)
+{
+	if (n->end == ENDBODY_NOT &&
+	    n->parent->head->child == NULL &&
+	    n->child != NULL &&
+	    n->child->end != ENDBODY_NOT)
+		md_preword();
+	else if (n->end != ENDBODY_NOT ? n->child != NULL :
+	    n->parent->head->child != NULL && (n->child != NULL ||
+	    (n->parent->tail != NULL && n->parent->tail->child != NULL)))
+		outflags &= ~(MD_spc | MD_nl);
+	return 1;
+}
+
+static void
+md_post_Eo(struct roff_node *n)
+{
+	if (n->end != ENDBODY_NOT) {
+		outflags |= MD_spc;
+		return;
+	}
+
+	if (n->child == NULL && n->parent->head->child == NULL)
+		return;
+
+	if (n->parent->tail != NULL && n->parent->tail->child != NULL)
+		outflags &= ~MD_spc;
+        else
+		outflags |= MD_spc;
+}
+
+static int
+md_pre_Fa(struct roff_node *n)
+{
+	int	 am_Fa;
+
+	am_Fa = n->tok == MDOC_Fa;
+
+	if (am_Fa)
+		n = n->child;
+
+	while (n != NULL) {
+		md_rawword("*");
+		outflags &= ~MD_spc;
+		md_node(n);
+		outflags &= ~MD_spc;
+		md_rawword("*");
+		if ((n = n->next) != NULL)
+			md_word(",");
+	}
+	return 0;
+}
+
+static void
+md_post_Fa(struct roff_node *n)
+{
+	if (n->next != NULL && n->next->tok == MDOC_Fa)
+		md_word(",");
+}
+
+static int
+md_pre_Fd(struct roff_node *n)
+{
+	md_pre_syn(n);
+	md_pre_raw(n);
+	return 1;
+}
+
+static void
+md_post_Fd(struct roff_node *n)
+{
+	md_post_raw(n);
+	outflags |= MD_br;
+}
+
+static void
+md_post_Fl(struct roff_node *n)
+{
+	md_post_raw(n);
+	if (n->child == NULL && n->next != NULL &&
+	    n->next->type != ROFFT_TEXT && !(n->next->flags & NODE_LINE))
+		outflags &= ~MD_spc;
+}
+
+static int
+md_pre_Fn(struct roff_node *n)
+{
+	md_pre_syn(n);
+
+	if ((n = n->child) == NULL)
+		return 0;
+
+	md_rawword("**");
+	outflags &= ~MD_spc;
+	md_node(n);
+	outflags &= ~MD_spc;
+	md_rawword("**");
+	outflags &= ~MD_spc;
+	md_word("(");
+
+	if ((n = n->next) != NULL)
+		md_pre_Fa(n);
+	return 0;
+}
+
+static void
+md_post_Fn(struct roff_node *n)
+{
+	md_word(")");
+	if (n->flags & NODE_SYNPRETTY) {
+		md_word(";");
+		outflags |= MD_sp;
+	}
+}
+
+static int
+md_pre_Fo(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		md_pre_syn(n);
+		break;
+	case ROFFT_HEAD:
+		if (n->child == NULL)
+			return 0;
+		md_pre_raw(n);
+		break;
+	case ROFFT_BODY:
+		outflags &= ~(MD_spc | MD_nl);
+		md_word("(");
+		break;
+	default:
+		break;
+	}
+	return 1;
+}
+
+static void
+md_post_Fo(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_HEAD:
+		if (n->child != NULL)
+			md_post_raw(n);
+		break;
+	case ROFFT_BODY:
+		md_post_Fn(n);
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+md_pre_In(struct roff_node *n)
+{
+	if (n->flags & NODE_SYNPRETTY) {
+		md_pre_syn(n);
+		md_rawword("**");
+		outflags &= ~MD_spc;
+		md_word("#include <");
+	} else {
+		md_word("<");
+		outflags &= ~MD_spc;
+		md_rawword("*");
+	}
+	outflags &= ~MD_spc;
+	return 1;
+}
+
+static void
+md_post_In(struct roff_node *n)
+{
+	if (n->flags & NODE_SYNPRETTY) {
+		outflags &= ~MD_spc;
+		md_rawword(">**");
+		outflags |= MD_nl;
+	} else {
+		outflags &= ~MD_spc;
+		md_rawword("*>");
+	}
+}
+
+static int
+md_pre_It(struct roff_node *n)
+{
+	struct roff_node	*bln;
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		return 1;
+
+	case ROFFT_HEAD:
+		bln = n->parent->parent;
+		if (bln->norm->Bl.comp == 0 &&
+		    bln->norm->Bl.type != LIST_column)
+			outflags |= MD_sp;
+		outflags |= MD_nl;
+
+		switch (bln->norm->Bl.type) {
+		case LIST_item:
+			outflags |= MD_br;
+			return 0;
+		case LIST_inset:
+		case LIST_diag:
+		case LIST_ohang:
+			outflags |= MD_br;
+			return 1;
+		case LIST_tag:
+		case LIST_hang:
+			outflags |= MD_sp;
+			return 1;
+		case LIST_bullet:
+			md_rawword("*\t");
+			break;
+		case LIST_dash:
+		case LIST_hyphen:
+			md_rawword("-\t");
+			break;
+		case LIST_enum:
+			md_preword();
+			if (bln->norm->Bl.count < 99)
+				bln->norm->Bl.count++;
+			printf("%d.\t", bln->norm->Bl.count);
+			escflags &= ~ESC_FON;
+			break;
+		case LIST_column:
+			outflags |= MD_br;
+			return 0;
+		default:
+			return 0;
+		}
+		outflags &= ~MD_spc;
+		outflags |= MD_nonl;
+		outcount = 0;
+		md_stack('\t');
+		if (code_blocks || quote_blocks)
+			list_blocks++;
+		return 0;
+
+	case ROFFT_BODY:
+		bln = n->parent->parent;
+		switch (bln->norm->Bl.type) {
+		case LIST_ohang:
+			outflags |= MD_br;
+			break;
+		case LIST_tag:
+		case LIST_hang:
+			md_pre_D1(n);
+			break;
+		default:
+			break;
+		}
+		return 1;
+
+	default:
+		return 0;
+	}
+}
+
+static void
+md_post_It(struct roff_node *n)
+{
+	struct roff_node	*bln;
+	int			 i, nc;
+
+	if (n->type != ROFFT_BODY)
+		return;
+
+	bln = n->parent->parent;
+	switch (bln->norm->Bl.type) {
+	case LIST_bullet:
+	case LIST_dash:
+	case LIST_hyphen:
+	case LIST_enum:
+		md_stack((char)-1);
+		if (code_blocks || quote_blocks)
+			list_blocks--;
+		break;
+	case LIST_tag:
+	case LIST_hang:
+		md_post_D1(n);
+		break;
+
+	case LIST_column:
+		if (n->next == NULL)
+			break;
+
+		/* Calculate the array index of the current column. */
+
+		i = 0;
+		while ((n = n->prev) != NULL && n->type != ROFFT_HEAD)
+			i++;
+
+		/* 
+		 * If a width was specified for this column,
+		 * subtract what printed, and
+		 * add the same spacing as in mdoc_term.c.
+		 */
+
+		nc = bln->norm->Bl.ncols;
+		i = i < nc ? strlen(bln->norm->Bl.cols[i]) - outcount +
+		    (nc < 5 ? 4 : nc == 5 ? 3 : 1) : 1;
+		if (i < 1)
+			i = 1;
+		while (i-- > 0)
+			putchar(' ');
+
+		outflags &= ~MD_spc;
+		escflags &= ~ESC_FON;
+		outcount = 0;
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void
+md_post_Lb(struct roff_node *n)
+{
+	if (n->sec == SEC_LIBRARY)
+		outflags |= MD_br;
+}
+
+static void
+md_uri(const char *s)
+{
+	while (*s != '\0') {
+		if (strchr("%()<>", *s) != NULL) {
+			printf("%%%2.2hhX", *s);
+			outcount += 3;
+		} else {
+			putchar(*s);
+			outcount++;
+		}
+		s++;
+	}
+}
+
+static int
+md_pre_Lk(struct roff_node *n)
+{
+	const struct roff_node *link, *descr, *punct;
+
+	if ((link = n->child) == NULL)
+		return 0;
+
+	/* Find beginning of trailing punctuation. */
+	punct = n->last;
+	while (punct != link && punct->flags & NODE_DELIMC)
+		punct = punct->prev;
+	punct = punct->next;
+
+	/* Link text. */
+	descr = link->next;
+	if (descr == punct)
+		descr = link;  /* no text */
+	md_rawword("[");
+	outflags &= ~MD_spc;
+	do {
+		md_word(descr->string);
+		descr = descr->next;
+	} while (descr != punct);
+	outflags &= ~MD_spc;
+
+	/* Link target. */
+	md_rawword("](");
+	md_uri(link->string);
+	outflags &= ~MD_spc;
+	md_rawword(")");
+
+	/* Trailing punctuation. */
+	while (punct != NULL) {
+		md_word(punct->string);
+		punct = punct->next;
+	}
+	return 0;
+}
+
+static int
+md_pre_Mt(struct roff_node *n)
+{
+	const struct roff_node *nch;
+
+	md_rawword("[");
+	outflags &= ~MD_spc;
+	for (nch = n->child; nch != NULL; nch = nch->next)
+		md_word(nch->string);
+	outflags &= ~MD_spc;
+	md_rawword("](mailto:");
+	for (nch = n->child; nch != NULL; nch = nch->next) {
+		md_uri(nch->string);
+		if (nch->next != NULL) {
+			putchar(' ');
+			outcount++;
+		}
+	}
+	outflags &= ~MD_spc;
+	md_rawword(")");
+	return 0;
+}
+
+static int
+md_pre_Nd(struct roff_node *n)
+{
+	outflags &= ~MD_nl;
+	outflags |= MD_spc;
+	md_word("-");
+	return 1;
+}
+
+static int
+md_pre_Nm(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		outflags |= MD_Bk;
+		md_pre_syn(n);
+		break;
+	case ROFFT_HEAD:
+	case ROFFT_ELEM:
+		md_pre_raw(n);
+		break;
+	default:
+		break;
+	}
+	return 1;
+}
+
+static void
+md_post_Nm(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		outflags &= ~MD_Bk;
+		break;
+	case ROFFT_HEAD:
+	case ROFFT_ELEM:
+		md_post_raw(n);
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+md_pre_No(struct roff_node *n)
+{
+	outflags |= MD_spc_force;
+	return 1;
+}
+
+static int
+md_pre_Ns(struct roff_node *n)
+{
+	outflags &= ~MD_spc;
+	return 0;
+}
+
+static void
+md_post_Pf(struct roff_node *n)
+{
+	if (n->next != NULL && (n->next->flags & NODE_LINE) == 0)
+		outflags &= ~MD_spc;
+}
+
+static int
+md_pre_Pp(struct roff_node *n)
+{
+	outflags |= MD_sp;
+	return 0;
+}
+
+static int
+md_pre_Rs(struct roff_node *n)
+{
+	if (n->sec == SEC_SEE_ALSO)
+		outflags |= MD_sp;
+	return 1;
+}
+
+static int
+md_pre_Sh(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		if (n->sec == SEC_AUTHORS)
+			outflags &= ~(MD_An_split | MD_An_nosplit);
+		break;
+	case ROFFT_HEAD:
+		outflags |= MD_sp;
+		md_rawword(n->tok == MDOC_Sh ? "#" : "##");
+		break;
+	case ROFFT_BODY:
+		outflags |= MD_sp;
+		break;
+	default:
+		break;
+	}
+	return 1;
+}
+
+static int
+md_pre_Sm(struct roff_node *n)
+{
+	if (n->child == NULL)
+		outflags ^= MD_Sm;
+	else if (strcmp("on", n->child->string) == 0)
+		outflags |= MD_Sm;
+	else
+		outflags &= ~MD_Sm;
+
+	if (outflags & MD_Sm)
+		outflags |= MD_spc;
+
+	return 0;
+}
+
+static int
+md_pre_Vt(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		md_pre_syn(n);
+		return 1;
+	case ROFFT_BODY:
+	case ROFFT_ELEM:
+		md_pre_raw(n);
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static void
+md_post_Vt(struct roff_node *n)
+{
+	switch (n->type) {
+	case ROFFT_BODY:
+	case ROFFT_ELEM:
+		md_post_raw(n);
+		break;
+	default:
+		break;
+	}
+}
+
+static int
+md_pre_Xr(struct roff_node *n)
+{
+	n = n->child;
+	if (n == NULL)
+		return 0;
+	md_node(n);
+	n = n->next;
+	if (n == NULL)
+		return 0;
+	outflags &= ~MD_spc;
+	md_word("(");
+	md_node(n);
+	md_word(")");
+	return 0;
+}
+
+static int
+md_pre__T(struct roff_node *n)
+{
+	if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
+		md_word("\"");
+	else
+		md_rawword("*");
+	outflags &= ~MD_spc;
+	return 1;
+}
+
+static void
+md_post__T(struct roff_node *n)
+{
+	outflags &= ~MD_spc;
+	if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
+		md_word("\"");
+	else
+		md_rawword("*");
+	md_post_pc(n);
+}
+
+static int
+md_pre_br(struct roff_node *n)
+{
+	outflags |= MD_br;
+	return 0;
+}

Added: vendor/mandoc/dist/mdoc_state.c
===================================================================
--- vendor/mandoc/dist/mdoc_state.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_state.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,292 @@
+/*	$Id: mdoc_state.c,v 1.8 2017/05/05 15:17:32 schwarze Exp $ */
+/*
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmandoc.h"
+#include "libmdoc.h"
+
+#define STATE_ARGS  struct roff_man *mdoc, struct roff_node *n
+
+typedef	void	(*state_handler)(STATE_ARGS);
+
+static	void	 state_bd(STATE_ARGS);
+static	void	 state_bl(STATE_ARGS);
+static	void	 state_dl(STATE_ARGS);
+static	void	 state_sh(STATE_ARGS);
+static	void	 state_sm(STATE_ARGS);
+
+static	const state_handler __state_handlers[MDOC_MAX - MDOC_Dd] = {
+	NULL,		/* Dd */
+	NULL,		/* Dt */
+	NULL,		/* Os */
+	state_sh,	/* Sh */
+	NULL,		/* Ss */
+	NULL,		/* Pp */
+	NULL,		/* D1 */
+	state_dl,	/* Dl */
+	state_bd,	/* Bd */
+	NULL,		/* Ed */
+	state_bl,	/* Bl */
+	NULL,		/* El */
+	NULL,		/* It */
+	NULL,		/* Ad */
+	NULL,		/* An */
+	NULL,		/* Ap */
+	NULL,		/* Ar */
+	NULL,		/* Cd */
+	NULL,		/* Cm */
+	NULL,		/* Dv */
+	NULL,		/* Er */
+	NULL,		/* Ev */
+	NULL,		/* Ex */
+	NULL,		/* Fa */
+	NULL,		/* Fd */
+	NULL,		/* Fl */
+	NULL,		/* Fn */
+	NULL,		/* Ft */
+	NULL,		/* Ic */
+	NULL,		/* In */
+	NULL,		/* Li */
+	NULL,		/* Nd */
+	NULL,		/* Nm */
+	NULL,		/* Op */
+	NULL,		/* Ot */
+	NULL,		/* Pa */
+	NULL,		/* Rv */
+	NULL,		/* St */
+	NULL,		/* Va */
+	NULL,		/* Vt */
+	NULL,		/* Xr */
+	NULL,		/* %A */
+	NULL,		/* %B */
+	NULL,		/* %D */
+	NULL,		/* %I */
+	NULL,		/* %J */
+	NULL,		/* %N */
+	NULL,		/* %O */
+	NULL,		/* %P */
+	NULL,		/* %R */
+	NULL,		/* %T */
+	NULL,		/* %V */
+	NULL,		/* Ac */
+	NULL,		/* Ao */
+	NULL,		/* Aq */
+	NULL,		/* At */
+	NULL,		/* Bc */
+	NULL,		/* Bf */
+	NULL,		/* Bo */
+	NULL,		/* Bq */
+	NULL,		/* Bsx */
+	NULL,		/* Bx */
+	NULL,		/* Db */
+	NULL,		/* Dc */
+	NULL,		/* Do */
+	NULL,		/* Dq */
+	NULL,		/* Ec */
+	NULL,		/* Ef */
+	NULL,		/* Em */
+	NULL,		/* Eo */
+	NULL,		/* Fx */
+	NULL,		/* Ms */
+	NULL,		/* No */
+	NULL,		/* Ns */
+	NULL,		/* Nx */
+	NULL,		/* Ox */
+	NULL,		/* Pc */
+	NULL,		/* Pf */
+	NULL,		/* Po */
+	NULL,		/* Pq */
+	NULL,		/* Qc */
+	NULL,		/* Ql */
+	NULL,		/* Qo */
+	NULL,		/* Qq */
+	NULL,		/* Re */
+	NULL,		/* Rs */
+	NULL,		/* Sc */
+	NULL,		/* So */
+	NULL,		/* Sq */
+	state_sm,	/* Sm */
+	NULL,		/* Sx */
+	NULL,		/* Sy */
+	NULL,		/* Tn */
+	NULL,		/* Ux */
+	NULL,		/* Xc */
+	NULL,		/* Xo */
+	NULL,		/* Fo */
+	NULL,		/* Fc */
+	NULL,		/* Oo */
+	NULL,		/* Oc */
+	NULL,		/* Bk */
+	NULL,		/* Ek */
+	NULL,		/* Bt */
+	NULL,		/* Hf */
+	NULL,		/* Fr */
+	NULL,		/* Ud */
+	NULL,		/* Lb */
+	NULL,		/* Lp */
+	NULL,		/* Lk */
+	NULL,		/* Mt */
+	NULL,		/* Brq */
+	NULL,		/* Bro */
+	NULL,		/* Brc */
+	NULL,		/* %C */
+	NULL,		/* Es */
+	NULL,		/* En */
+	NULL,		/* Dx */
+	NULL,		/* %Q */
+	NULL,		/* %U */
+	NULL,		/* Ta */
+};
+static const state_handler *const state_handlers = __state_handlers - MDOC_Dd;
+
+
+void
+mdoc_state(struct roff_man *mdoc, struct roff_node *n)
+{
+	state_handler handler;
+
+	if (n->tok == TOKEN_NONE || n->tok < ROFF_MAX)
+		return;
+
+	assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+	if ( ! (mdoc_macros[n->tok].flags & MDOC_PROLOGUE))
+		mdoc->flags |= MDOC_PBODY;
+
+	handler = state_handlers[n->tok];
+	if (*handler)
+		(*handler)(mdoc, n);
+}
+
+void
+mdoc_state_reset(struct roff_man *mdoc)
+{
+
+	roff_setreg(mdoc->roff, "nS", 0, '=');
+	mdoc->flags = 0;
+}
+
+static void
+state_bd(STATE_ARGS)
+{
+	enum mdocargt arg;
+
+	if (n->type != ROFFT_HEAD &&
+	    (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
+		return;
+
+	if (n->parent->args == NULL)
+		return;
+
+	arg = n->parent->args->argv[0].arg;
+	if (arg != MDOC_Literal && arg != MDOC_Unfilled)
+		return;
+
+	state_dl(mdoc, n);
+}
+
+static void
+state_bl(STATE_ARGS)
+{
+
+	if (n->type != ROFFT_HEAD || n->parent->args == NULL)
+		return;
+
+	switch(n->parent->args->argv[0].arg) {
+	case MDOC_Diag:
+		n->norm->Bl.type = LIST_diag;
+		break;
+	case MDOC_Column:
+		n->norm->Bl.type = LIST_column;
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+state_dl(STATE_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		mdoc->flags |= MDOC_LITERAL;
+		break;
+	case ROFFT_BODY:
+		mdoc->flags &= ~MDOC_LITERAL;
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+state_sh(STATE_ARGS)
+{
+	struct roff_node *nch;
+	char		 *secname;
+
+	if (n->type != ROFFT_HEAD)
+		return;
+
+	if ( ! (n->flags & NODE_VALID)) {
+		secname = NULL;
+		deroff(&secname, n);
+
+		/*
+		 * Set the section attribute for the BLOCK, HEAD,
+		 * and HEAD children; the latter can only be TEXT
+		 * nodes, so no recursion is needed.  For other
+		 * nodes, including the .Sh BODY, this is done
+		 * when allocating the node data structures, but
+		 * for .Sh BLOCK and HEAD, the section is still
+		 * unknown at that time.
+		 */
+
+		n->sec = n->parent->sec = secname == NULL ?
+		    SEC_CUSTOM : mdoc_a2sec(secname);
+		for (nch = n->child; nch != NULL; nch = nch->next)
+			nch->sec = n->sec;
+		free(secname);
+	}
+
+	if ((mdoc->lastsec = n->sec) == SEC_SYNOPSIS) {
+		roff_setreg(mdoc->roff, "nS", 1, '=');
+		mdoc->flags |= MDOC_SYNOPSIS;
+	} else {
+		roff_setreg(mdoc->roff, "nS", 0, '=');
+		mdoc->flags &= ~MDOC_SYNOPSIS;
+	}
+}
+
+static void
+state_sm(STATE_ARGS)
+{
+
+	if (n->child == NULL)
+		mdoc->flags ^= MDOC_SMOFF;
+	else if ( ! strcmp(n->child->string, "on"))
+		mdoc->flags &= ~MDOC_SMOFF;
+	else if ( ! strcmp(n->child->string, "off"))
+		mdoc->flags |= MDOC_SMOFF;
+}

Added: vendor/mandoc/dist/mdoc_term.c
===================================================================
--- vendor/mandoc/dist/mdoc_term.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_term.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2103 @@
+/*	$Id: mdoc_term.c,v 1.364 2017/06/14 17:51:15 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2013 Franco Fichtner <franco at lastsummer.de>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "out.h"
+#include "term.h"
+#include "tag.h"
+#include "main.h"
+
+struct	termpair {
+	struct termpair	 *ppair;
+	int		  count;
+};
+
+#define	DECL_ARGS struct termp *p, \
+		  struct termpair *pair, \
+		  const struct roff_meta *meta, \
+		  struct roff_node *n
+
+struct	termact {
+	int	(*pre)(DECL_ARGS);
+	void	(*post)(DECL_ARGS);
+};
+
+static	int	  a2width(const struct termp *, const char *);
+
+static	void	  print_bvspace(struct termp *,
+			const struct roff_node *,
+			const struct roff_node *);
+static	void	  print_mdoc_node(DECL_ARGS);
+static	void	  print_mdoc_nodelist(DECL_ARGS);
+static	void	  print_mdoc_head(struct termp *, const struct roff_meta *);
+static	void	  print_mdoc_foot(struct termp *, const struct roff_meta *);
+static	void	  synopsis_pre(struct termp *,
+			const struct roff_node *);
+
+static	void	  termp____post(DECL_ARGS);
+static	void	  termp__t_post(DECL_ARGS);
+static	void	  termp_bd_post(DECL_ARGS);
+static	void	  termp_bk_post(DECL_ARGS);
+static	void	  termp_bl_post(DECL_ARGS);
+static	void	  termp_eo_post(DECL_ARGS);
+static	void	  termp_fd_post(DECL_ARGS);
+static	void	  termp_fo_post(DECL_ARGS);
+static	void	  termp_in_post(DECL_ARGS);
+static	void	  termp_it_post(DECL_ARGS);
+static	void	  termp_lb_post(DECL_ARGS);
+static	void	  termp_nm_post(DECL_ARGS);
+static	void	  termp_pf_post(DECL_ARGS);
+static	void	  termp_quote_post(DECL_ARGS);
+static	void	  termp_sh_post(DECL_ARGS);
+static	void	  termp_ss_post(DECL_ARGS);
+static	void	  termp_xx_post(DECL_ARGS);
+
+static	int	  termp__a_pre(DECL_ARGS);
+static	int	  termp__t_pre(DECL_ARGS);
+static	int	  termp_an_pre(DECL_ARGS);
+static	int	  termp_ap_pre(DECL_ARGS);
+static	int	  termp_bd_pre(DECL_ARGS);
+static	int	  termp_bf_pre(DECL_ARGS);
+static	int	  termp_bk_pre(DECL_ARGS);
+static	int	  termp_bl_pre(DECL_ARGS);
+static	int	  termp_bold_pre(DECL_ARGS);
+static	int	  termp_cd_pre(DECL_ARGS);
+static	int	  termp_d1_pre(DECL_ARGS);
+static	int	  termp_eo_pre(DECL_ARGS);
+static	int	  termp_em_pre(DECL_ARGS);
+static	int	  termp_er_pre(DECL_ARGS);
+static	int	  termp_ex_pre(DECL_ARGS);
+static	int	  termp_fa_pre(DECL_ARGS);
+static	int	  termp_fd_pre(DECL_ARGS);
+static	int	  termp_fl_pre(DECL_ARGS);
+static	int	  termp_fn_pre(DECL_ARGS);
+static	int	  termp_fo_pre(DECL_ARGS);
+static	int	  termp_ft_pre(DECL_ARGS);
+static	int	  termp_in_pre(DECL_ARGS);
+static	int	  termp_it_pre(DECL_ARGS);
+static	int	  termp_li_pre(DECL_ARGS);
+static	int	  termp_lk_pre(DECL_ARGS);
+static	int	  termp_nd_pre(DECL_ARGS);
+static	int	  termp_nm_pre(DECL_ARGS);
+static	int	  termp_ns_pre(DECL_ARGS);
+static	int	  termp_quote_pre(DECL_ARGS);
+static	int	  termp_rs_pre(DECL_ARGS);
+static	int	  termp_sh_pre(DECL_ARGS);
+static	int	  termp_skip_pre(DECL_ARGS);
+static	int	  termp_sm_pre(DECL_ARGS);
+static	int	  termp_pp_pre(DECL_ARGS);
+static	int	  termp_ss_pre(DECL_ARGS);
+static	int	  termp_sy_pre(DECL_ARGS);
+static	int	  termp_tag_pre(DECL_ARGS);
+static	int	  termp_under_pre(DECL_ARGS);
+static	int	  termp_vt_pre(DECL_ARGS);
+static	int	  termp_xr_pre(DECL_ARGS);
+static	int	  termp_xx_pre(DECL_ARGS);
+
+static	const struct termact __termacts[MDOC_MAX - MDOC_Dd] = {
+	{ NULL, NULL }, /* Dd */
+	{ NULL, NULL }, /* Dt */
+	{ NULL, NULL }, /* Os */
+	{ termp_sh_pre, termp_sh_post }, /* Sh */
+	{ termp_ss_pre, termp_ss_post }, /* Ss */
+	{ termp_pp_pre, NULL }, /* Pp */
+	{ termp_d1_pre, termp_bl_post }, /* D1 */
+	{ termp_d1_pre, termp_bl_post }, /* Dl */
+	{ termp_bd_pre, termp_bd_post }, /* Bd */
+	{ NULL, NULL }, /* Ed */
+	{ termp_bl_pre, termp_bl_post }, /* Bl */
+	{ NULL, NULL }, /* El */
+	{ termp_it_pre, termp_it_post }, /* It */
+	{ termp_under_pre, NULL }, /* Ad */
+	{ termp_an_pre, NULL }, /* An */
+	{ termp_ap_pre, NULL }, /* Ap */
+	{ termp_under_pre, NULL }, /* Ar */
+	{ termp_cd_pre, NULL }, /* Cd */
+	{ termp_bold_pre, NULL }, /* Cm */
+	{ termp_li_pre, NULL }, /* Dv */
+	{ termp_er_pre, NULL }, /* Er */
+	{ termp_tag_pre, NULL }, /* Ev */
+	{ termp_ex_pre, NULL }, /* Ex */
+	{ termp_fa_pre, NULL }, /* Fa */
+	{ termp_fd_pre, termp_fd_post }, /* Fd */
+	{ termp_fl_pre, NULL }, /* Fl */
+	{ termp_fn_pre, NULL }, /* Fn */
+	{ termp_ft_pre, NULL }, /* Ft */
+	{ termp_bold_pre, NULL }, /* Ic */
+	{ termp_in_pre, termp_in_post }, /* In */
+	{ termp_li_pre, NULL }, /* Li */
+	{ termp_nd_pre, NULL }, /* Nd */
+	{ termp_nm_pre, termp_nm_post }, /* Nm */
+	{ termp_quote_pre, termp_quote_post }, /* Op */
+	{ termp_ft_pre, NULL }, /* Ot */
+	{ termp_under_pre, NULL }, /* Pa */
+	{ termp_ex_pre, NULL }, /* Rv */
+	{ NULL, NULL }, /* St */
+	{ termp_under_pre, NULL }, /* Va */
+	{ termp_vt_pre, NULL }, /* Vt */
+	{ termp_xr_pre, NULL }, /* Xr */
+	{ termp__a_pre, termp____post }, /* %A */
+	{ termp_under_pre, termp____post }, /* %B */
+	{ NULL, termp____post }, /* %D */
+	{ termp_under_pre, termp____post }, /* %I */
+	{ termp_under_pre, termp____post }, /* %J */
+	{ NULL, termp____post }, /* %N */
+	{ NULL, termp____post }, /* %O */
+	{ NULL, termp____post }, /* %P */
+	{ NULL, termp____post }, /* %R */
+	{ termp__t_pre, termp__t_post }, /* %T */
+	{ NULL, termp____post }, /* %V */
+	{ NULL, NULL }, /* Ac */
+	{ termp_quote_pre, termp_quote_post }, /* Ao */
+	{ termp_quote_pre, termp_quote_post }, /* Aq */
+	{ NULL, NULL }, /* At */
+	{ NULL, NULL }, /* Bc */
+	{ termp_bf_pre, NULL }, /* Bf */
+	{ termp_quote_pre, termp_quote_post }, /* Bo */
+	{ termp_quote_pre, termp_quote_post }, /* Bq */
+	{ termp_xx_pre, termp_xx_post }, /* Bsx */
+	{ NULL, NULL }, /* Bx */
+	{ termp_skip_pre, NULL }, /* Db */
+	{ NULL, NULL }, /* Dc */
+	{ termp_quote_pre, termp_quote_post }, /* Do */
+	{ termp_quote_pre, termp_quote_post }, /* Dq */
+	{ NULL, NULL }, /* Ec */ /* FIXME: no space */
+	{ NULL, NULL }, /* Ef */
+	{ termp_em_pre, NULL }, /* Em */
+	{ termp_eo_pre, termp_eo_post }, /* Eo */
+	{ termp_xx_pre, termp_xx_post }, /* Fx */
+	{ termp_bold_pre, NULL }, /* Ms */
+	{ termp_li_pre, NULL }, /* No */
+	{ termp_ns_pre, NULL }, /* Ns */
+	{ termp_xx_pre, termp_xx_post }, /* Nx */
+	{ termp_xx_pre, termp_xx_post }, /* Ox */
+	{ NULL, NULL }, /* Pc */
+	{ NULL, termp_pf_post }, /* Pf */
+	{ termp_quote_pre, termp_quote_post }, /* Po */
+	{ termp_quote_pre, termp_quote_post }, /* Pq */
+	{ NULL, NULL }, /* Qc */
+	{ termp_quote_pre, termp_quote_post }, /* Ql */
+	{ termp_quote_pre, termp_quote_post }, /* Qo */
+	{ termp_quote_pre, termp_quote_post }, /* Qq */
+	{ NULL, NULL }, /* Re */
+	{ termp_rs_pre, NULL }, /* Rs */
+	{ NULL, NULL }, /* Sc */
+	{ termp_quote_pre, termp_quote_post }, /* So */
+	{ termp_quote_pre, termp_quote_post }, /* Sq */
+	{ termp_sm_pre, NULL }, /* Sm */
+	{ termp_under_pre, NULL }, /* Sx */
+	{ termp_sy_pre, NULL }, /* Sy */
+	{ NULL, NULL }, /* Tn */
+	{ termp_xx_pre, termp_xx_post }, /* Ux */
+	{ NULL, NULL }, /* Xc */
+	{ NULL, NULL }, /* Xo */
+	{ termp_fo_pre, termp_fo_post }, /* Fo */
+	{ NULL, NULL }, /* Fc */
+	{ termp_quote_pre, termp_quote_post }, /* Oo */
+	{ NULL, NULL }, /* Oc */
+	{ termp_bk_pre, termp_bk_post }, /* Bk */
+	{ NULL, NULL }, /* Ek */
+	{ NULL, NULL }, /* Bt */
+	{ NULL, NULL }, /* Hf */
+	{ termp_under_pre, NULL }, /* Fr */
+	{ NULL, NULL }, /* Ud */
+	{ NULL, termp_lb_post }, /* Lb */
+	{ termp_pp_pre, NULL }, /* Lp */
+	{ termp_lk_pre, NULL }, /* Lk */
+	{ termp_under_pre, NULL }, /* Mt */
+	{ termp_quote_pre, termp_quote_post }, /* Brq */
+	{ termp_quote_pre, termp_quote_post }, /* Bro */
+	{ NULL, NULL }, /* Brc */
+	{ NULL, termp____post }, /* %C */
+	{ termp_skip_pre, NULL }, /* Es */
+	{ termp_quote_pre, termp_quote_post }, /* En */
+	{ termp_xx_pre, termp_xx_post }, /* Dx */
+	{ NULL, termp____post }, /* %Q */
+	{ NULL, termp____post }, /* %U */
+	{ NULL, NULL }, /* Ta */
+};
+static	const struct termact *const termacts = __termacts - MDOC_Dd;
+
+static	int	 fn_prio;
+
+
+void
+terminal_mdoc(void *arg, const struct roff_man *mdoc)
+{
+	struct roff_node	*n;
+	struct termp		*p;
+	size_t			 save_defindent;
+
+	p = (struct termp *)arg;
+	p->tcol->rmargin = p->maxrmargin = p->defrmargin;
+	term_tab_set(p, NULL);
+	term_tab_set(p, "T");
+	term_tab_set(p, ".5i");
+
+	n = mdoc->first->child;
+	if (p->synopsisonly) {
+		while (n != NULL) {
+			if (n->tok == MDOC_Sh && n->sec == SEC_SYNOPSIS) {
+				if (n->child->next->child != NULL)
+					print_mdoc_nodelist(p, NULL,
+					    &mdoc->meta,
+					    n->child->next->child);
+				term_newln(p);
+				break;
+			}
+			n = n->next;
+		}
+	} else {
+		save_defindent = p->defindent;
+		if (p->defindent == 0)
+			p->defindent = 5;
+		term_begin(p, print_mdoc_head, print_mdoc_foot,
+		    &mdoc->meta);
+		while (n != NULL && n->flags & NODE_NOPRT)
+			n = n->next;
+		if (n != NULL) {
+			if (n->tok != MDOC_Sh)
+				term_vspace(p);
+			print_mdoc_nodelist(p, NULL, &mdoc->meta, n);
+		}
+		term_end(p);
+		p->defindent = save_defindent;
+	}
+}
+
+static void
+print_mdoc_nodelist(DECL_ARGS)
+{
+
+	while (n != NULL) {
+		print_mdoc_node(p, pair, meta, n);
+		n = n->next;
+	}
+}
+
+static void
+print_mdoc_node(DECL_ARGS)
+{
+	int		 chld;
+	struct termpair	 npair;
+	size_t		 offset, rmargin;
+
+	if (n->flags & NODE_NOPRT)
+		return;
+
+	chld = 1;
+	offset = p->tcol->offset;
+	rmargin = p->tcol->rmargin;
+	n->flags &= ~NODE_ENDED;
+	n->prev_font = p->fonti;
+
+	memset(&npair, 0, sizeof(struct termpair));
+	npair.ppair = pair;
+
+	/*
+	 * Keeps only work until the end of a line.  If a keep was
+	 * invoked in a prior line, revert it to PREKEEP.
+	 */
+
+	if (p->flags & TERMP_KEEP && n->flags & NODE_LINE) {
+		p->flags &= ~TERMP_KEEP;
+		p->flags |= TERMP_PREKEEP;
+	}
+
+	/*
+	 * After the keep flags have been set up, we may now
+	 * produce output.  Note that some pre-handlers do so.
+	 */
+
+	switch (n->type) {
+	case ROFFT_TEXT:
+		if (*n->string == ' ' && n->flags & NODE_LINE &&
+		    (p->flags & TERMP_NONEWLINE) == 0)
+			term_newln(p);
+		if (NODE_DELIMC & n->flags)
+			p->flags |= TERMP_NOSPACE;
+		term_word(p, n->string);
+		if (NODE_DELIMO & n->flags)
+			p->flags |= TERMP_NOSPACE;
+		break;
+	case ROFFT_EQN:
+		if ( ! (n->flags & NODE_LINE))
+			p->flags |= TERMP_NOSPACE;
+		term_eqn(p, n->eqn);
+		if (n->next != NULL && ! (n->next->flags & NODE_LINE))
+			p->flags |= TERMP_NOSPACE;
+		break;
+	case ROFFT_TBL:
+		if (p->tbl.cols == NULL)
+			term_newln(p);
+		term_tbl(p, n->span);
+		break;
+	default:
+		if (n->tok < ROFF_MAX) {
+			roff_term_pre(p, n);
+			return;
+		}
+		assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+		if (termacts[n->tok].pre != NULL &&
+		    (n->end == ENDBODY_NOT || n->child != NULL))
+			chld = (*termacts[n->tok].pre)
+				(p, &npair, meta, n);
+		break;
+	}
+
+	if (chld && n->child)
+		print_mdoc_nodelist(p, &npair, meta, n->child);
+
+	term_fontpopq(p,
+	    (ENDBODY_NOT == n->end ? n : n->body)->prev_font);
+
+	switch (n->type) {
+	case ROFFT_TEXT:
+		break;
+	case ROFFT_TBL:
+		break;
+	case ROFFT_EQN:
+		break;
+	default:
+		if (termacts[n->tok].post == NULL || n->flags & NODE_ENDED)
+			break;
+		(void)(*termacts[n->tok].post)(p, &npair, meta, n);
+
+		/*
+		 * Explicit end tokens not only call the post
+		 * handler, but also tell the respective block
+		 * that it must not call the post handler again.
+		 */
+		if (ENDBODY_NOT != n->end)
+			n->body->flags |= NODE_ENDED;
+		break;
+	}
+
+	if (NODE_EOS & n->flags)
+		p->flags |= TERMP_SENTENCE;
+
+	if (n->type != ROFFT_TEXT)
+		p->tcol->offset = offset;
+	p->tcol->rmargin = rmargin;
+}
+
+static void
+print_mdoc_foot(struct termp *p, const struct roff_meta *meta)
+{
+	size_t sz;
+
+	term_fontrepl(p, TERMFONT_NONE);
+
+	/*
+	 * Output the footer in new-groff style, that is, three columns
+	 * with the middle being the manual date and flanking columns
+	 * being the operating system:
+	 *
+	 * SYSTEM                  DATE                    SYSTEM
+	 */
+
+	term_vspace(p);
+
+	p->tcol->offset = 0;
+	sz = term_strlen(p, meta->date);
+	p->tcol->rmargin = p->maxrmargin > sz ?
+	    (p->maxrmargin + term_len(p, 1) - sz) / 2 : 0;
+	p->trailspace = 1;
+	p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
+
+	term_word(p, meta->os);
+	term_flushln(p);
+
+	p->tcol->offset = p->tcol->rmargin;
+	sz = term_strlen(p, meta->os);
+	p->tcol->rmargin = p->maxrmargin > sz ? p->maxrmargin - sz : 0;
+	p->flags |= TERMP_NOSPACE;
+
+	term_word(p, meta->date);
+	term_flushln(p);
+
+	p->tcol->offset = p->tcol->rmargin;
+	p->tcol->rmargin = p->maxrmargin;
+	p->trailspace = 0;
+	p->flags &= ~TERMP_NOBREAK;
+	p->flags |= TERMP_NOSPACE;
+
+	term_word(p, meta->os);
+	term_flushln(p);
+
+	p->tcol->offset = 0;
+	p->tcol->rmargin = p->maxrmargin;
+	p->flags = 0;
+}
+
+static void
+print_mdoc_head(struct termp *p, const struct roff_meta *meta)
+{
+	char			*volume, *title;
+	size_t			 vollen, titlen;
+
+	/*
+	 * The header is strange.  It has three components, which are
+	 * really two with the first duplicated.  It goes like this:
+	 *
+	 * IDENTIFIER              TITLE                   IDENTIFIER
+	 *
+	 * The IDENTIFIER is NAME(SECTION), which is the command-name
+	 * (if given, or "unknown" if not) followed by the manual page
+	 * section.  These are given in `Dt'.  The TITLE is a free-form
+	 * string depending on the manual volume.  If not specified, it
+	 * switches on the manual section.
+	 */
+
+	assert(meta->vol);
+	if (NULL == meta->arch)
+		volume = mandoc_strdup(meta->vol);
+	else
+		mandoc_asprintf(&volume, "%s (%s)",
+		    meta->vol, meta->arch);
+	vollen = term_strlen(p, volume);
+
+	if (NULL == meta->msec)
+		title = mandoc_strdup(meta->title);
+	else
+		mandoc_asprintf(&title, "%s(%s)",
+		    meta->title, meta->msec);
+	titlen = term_strlen(p, title);
+
+	p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
+	p->trailspace = 1;
+	p->tcol->offset = 0;
+	p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
+	    (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
+	    vollen < p->maxrmargin ?  p->maxrmargin - vollen : 0;
+
+	term_word(p, title);
+	term_flushln(p);
+
+	p->flags |= TERMP_NOSPACE;
+	p->tcol->offset = p->tcol->rmargin;
+	p->tcol->rmargin = p->tcol->offset + vollen + titlen <
+	    p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
+
+	term_word(p, volume);
+	term_flushln(p);
+
+	p->flags &= ~TERMP_NOBREAK;
+	p->trailspace = 0;
+	if (p->tcol->rmargin + titlen <= p->maxrmargin) {
+		p->flags |= TERMP_NOSPACE;
+		p->tcol->offset = p->tcol->rmargin;
+		p->tcol->rmargin = p->maxrmargin;
+		term_word(p, title);
+		term_flushln(p);
+	}
+
+	p->flags &= ~TERMP_NOSPACE;
+	p->tcol->offset = 0;
+	p->tcol->rmargin = p->maxrmargin;
+	free(title);
+	free(volume);
+}
+
+static int
+a2width(const struct termp *p, const char *v)
+{
+	struct roffsu	 su;
+	const char	*end;
+
+	end = a2roffsu(v, &su, SCALE_MAX);
+	if (end == NULL || *end != '\0') {
+		SCALE_HS_INIT(&su, term_strlen(p, v));
+		su.scale /= term_strlen(p, "0");
+	}
+	return term_hen(p, &su);
+}
+
+/*
+ * Determine how much space to print out before block elements of `It'
+ * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
+ * too.
+ */
+static void
+print_bvspace(struct termp *p,
+	const struct roff_node *bl,
+	const struct roff_node *n)
+{
+	const struct roff_node	*nn;
+
+	assert(n);
+
+	term_newln(p);
+
+	if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
+		return;
+	if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
+		return;
+
+	/* Do not vspace directly after Ss/Sh. */
+
+	nn = n;
+	while (nn->prev != NULL && nn->prev->flags & NODE_NOPRT)
+		nn = nn->prev;
+	while (nn->prev == NULL) {
+		do {
+			nn = nn->parent;
+			if (nn->type == ROFFT_ROOT)
+				return;
+		} while (nn->type != ROFFT_BLOCK);
+		if (nn->tok == MDOC_Sh || nn->tok == MDOC_Ss)
+			return;
+		if (nn->tok == MDOC_It &&
+		    nn->parent->parent->norm->Bl.type != LIST_item)
+			break;
+	}
+
+	/* A `-column' does not assert vspace within the list. */
+
+	if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
+		if (n->prev && MDOC_It == n->prev->tok)
+			return;
+
+	/* A `-diag' without body does not vspace. */
+
+	if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
+		if (n->prev && MDOC_It == n->prev->tok) {
+			assert(n->prev->body);
+			if (NULL == n->prev->body->child)
+				return;
+		}
+
+	term_vspace(p);
+}
+
+
+static int
+termp_it_pre(DECL_ARGS)
+{
+	struct roffsu		su;
+	char			buf[24];
+	const struct roff_node *bl, *nn;
+	size_t			ncols, dcol;
+	int			i, offset, width;
+	enum mdoc_list		type;
+
+	if (n->type == ROFFT_BLOCK) {
+		print_bvspace(p, n->parent->parent, n);
+		return 1;
+	}
+
+	bl = n->parent->parent->parent;
+	type = bl->norm->Bl.type;
+
+	/*
+	 * Defaults for specific list types.
+	 */
+
+	switch (type) {
+	case LIST_bullet:
+	case LIST_dash:
+	case LIST_hyphen:
+	case LIST_enum:
+		width = term_len(p, 2);
+		break;
+	case LIST_hang:
+	case LIST_tag:
+		width = term_len(p, 8);
+		break;
+	case LIST_column:
+		width = term_len(p, 10);
+		break;
+	default:
+		width = 0;
+		break;
+	}
+	offset = 0;
+
+	/*
+	 * First calculate width and offset.  This is pretty easy unless
+	 * we're a -column list, in which case all prior columns must
+	 * be accounted for.
+	 */
+
+	if (bl->norm->Bl.offs != NULL) {
+		offset = a2width(p, bl->norm->Bl.offs);
+		if (offset < 0 && (size_t)(-offset) > p->tcol->offset)
+			offset = -p->tcol->offset;
+		else if (offset > SHRT_MAX)
+			offset = 0;
+	}
+
+	switch (type) {
+	case LIST_column:
+		if (n->type == ROFFT_HEAD)
+			break;
+
+		/*
+		 * Imitate groff's column handling:
+		 * - For each earlier column, add its width.
+		 * - For less than 5 columns, add four more blanks per
+		 *   column.
+		 * - For exactly 5 columns, add three more blank per
+		 *   column.
+		 * - For more than 5 columns, add only one column.
+		 */
+		ncols = bl->norm->Bl.ncols;
+		dcol = ncols < 5 ? term_len(p, 4) :
+		    ncols == 5 ? term_len(p, 3) : term_len(p, 1);
+
+		/*
+		 * Calculate the offset by applying all prior ROFFT_BODY,
+		 * so we stop at the ROFFT_HEAD (nn->prev == NULL).
+		 */
+
+		for (i = 0, nn = n->prev;
+		    nn->prev && i < (int)ncols;
+		    nn = nn->prev, i++) {
+			SCALE_HS_INIT(&su,
+			    term_strlen(p, bl->norm->Bl.cols[i]));
+			su.scale /= term_strlen(p, "0");
+			offset += term_hen(p, &su) + dcol;
+		}
+
+		/*
+		 * When exceeding the declared number of columns, leave
+		 * the remaining widths at 0.  This will later be
+		 * adjusted to the default width of 10, or, for the last
+		 * column, stretched to the right margin.
+		 */
+		if (i >= (int)ncols)
+			break;
+
+		/*
+		 * Use the declared column widths, extended as explained
+		 * in the preceding paragraph.
+		 */
+		SCALE_HS_INIT(&su, term_strlen(p, bl->norm->Bl.cols[i]));
+		su.scale /= term_strlen(p, "0");
+		width = term_hen(p, &su) + dcol;
+		break;
+	default:
+		if (NULL == bl->norm->Bl.width)
+			break;
+
+		/*
+		 * Note: buffer the width by 2, which is groff's magic
+		 * number for buffering single arguments.  See the above
+		 * handling for column for how this changes.
+		 */
+		width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
+		if (width < 0 && (size_t)(-width) > p->tcol->offset)
+			width = -p->tcol->offset;
+		else if (width > SHRT_MAX)
+			width = 0;
+		break;
+	}
+
+	/*
+	 * Whitespace control.  Inset bodies need an initial space,
+	 * while diagonal bodies need two.
+	 */
+
+	p->flags |= TERMP_NOSPACE;
+
+	switch (type) {
+	case LIST_diag:
+		if (n->type == ROFFT_BODY)
+			term_word(p, "\\ \\ ");
+		break;
+	case LIST_inset:
+		if (n->type == ROFFT_BODY && n->parent->head->child != NULL)
+			term_word(p, "\\ ");
+		break;
+	default:
+		break;
+	}
+
+	p->flags |= TERMP_NOSPACE;
+
+	switch (type) {
+	case LIST_diag:
+		if (n->type == ROFFT_HEAD)
+			term_fontpush(p, TERMFONT_BOLD);
+		break;
+	default:
+		break;
+	}
+
+	/*
+	 * Pad and break control.  This is the tricky part.  These flags
+	 * are documented in term_flushln() in term.c.  Note that we're
+	 * going to unset all of these flags in termp_it_post() when we
+	 * exit.
+	 */
+
+	switch (type) {
+	case LIST_enum:
+	case LIST_bullet:
+	case LIST_dash:
+	case LIST_hyphen:
+		if (n->type == ROFFT_HEAD) {
+			p->flags |= TERMP_NOBREAK | TERMP_HANG;
+			p->trailspace = 1;
+		} else if (width <= (int)term_len(p, 2))
+			p->flags |= TERMP_NOPAD;
+		break;
+	case LIST_hang:
+		if (n->type != ROFFT_HEAD)
+			break;
+		p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
+		p->trailspace = 1;
+		break;
+	case LIST_tag:
+		if (n->type != ROFFT_HEAD)
+			break;
+
+		p->flags |= TERMP_NOBREAK | TERMP_BRTRSP | TERMP_BRIND;
+		p->trailspace = 2;
+
+		if (NULL == n->next || NULL == n->next->child)
+			p->flags |= TERMP_HANG;
+		break;
+	case LIST_column:
+		if (n->type == ROFFT_HEAD)
+			break;
+
+		if (NULL == n->next) {
+			p->flags &= ~TERMP_NOBREAK;
+			p->trailspace = 0;
+		} else {
+			p->flags |= TERMP_NOBREAK;
+			p->trailspace = 1;
+		}
+
+		break;
+	case LIST_diag:
+		if (n->type != ROFFT_HEAD)
+			break;
+		p->flags |= TERMP_NOBREAK | TERMP_BRIND;
+		p->trailspace = 1;
+		break;
+	default:
+		break;
+	}
+
+	/*
+	 * Margin control.  Set-head-width lists have their right
+	 * margins shortened.  The body for these lists has the offset
+	 * necessarily lengthened.  Everybody gets the offset.
+	 */
+
+	p->tcol->offset += offset;
+
+	switch (type) {
+	case LIST_bullet:
+	case LIST_dash:
+	case LIST_enum:
+	case LIST_hyphen:
+	case LIST_hang:
+	case LIST_tag:
+		if (n->type == ROFFT_HEAD)
+			p->tcol->rmargin = p->tcol->offset + width;
+		else
+			p->tcol->offset += width;
+		break;
+	case LIST_column:
+		assert(width);
+		p->tcol->rmargin = p->tcol->offset + width;
+		/*
+		 * XXX - this behaviour is not documented: the
+		 * right-most column is filled to the right margin.
+		 */
+		if (n->type == ROFFT_HEAD)
+			break;
+		if (n->next == NULL && p->tcol->rmargin < p->maxrmargin)
+			p->tcol->rmargin = p->maxrmargin;
+		break;
+	default:
+		break;
+	}
+
+	/*
+	 * The dash, hyphen, bullet and enum lists all have a special
+	 * HEAD character (temporarily bold, in some cases).
+	 */
+
+	if (n->type == ROFFT_HEAD)
+		switch (type) {
+		case LIST_bullet:
+			term_fontpush(p, TERMFONT_BOLD);
+			term_word(p, "\\[bu]");
+			term_fontpop(p);
+			break;
+		case LIST_dash:
+		case LIST_hyphen:
+			term_fontpush(p, TERMFONT_BOLD);
+			term_word(p, "-");
+			term_fontpop(p);
+			break;
+		case LIST_enum:
+			(pair->ppair->ppair->count)++;
+			(void)snprintf(buf, sizeof(buf), "%d.",
+			    pair->ppair->ppair->count);
+			term_word(p, buf);
+			break;
+		default:
+			break;
+		}
+
+	/*
+	 * If we're not going to process our children, indicate so here.
+	 */
+
+	switch (type) {
+	case LIST_bullet:
+	case LIST_item:
+	case LIST_dash:
+	case LIST_hyphen:
+	case LIST_enum:
+		if (n->type == ROFFT_HEAD)
+			return 0;
+		break;
+	case LIST_column:
+		if (n->type == ROFFT_HEAD)
+			return 0;
+		p->minbl = 0;
+		break;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static void
+termp_it_post(DECL_ARGS)
+{
+	enum mdoc_list	   type;
+
+	if (n->type == ROFFT_BLOCK)
+		return;
+
+	type = n->parent->parent->parent->norm->Bl.type;
+
+	switch (type) {
+	case LIST_item:
+	case LIST_diag:
+	case LIST_inset:
+		if (n->type == ROFFT_BODY)
+			term_newln(p);
+		break;
+	case LIST_column:
+		if (n->type == ROFFT_BODY)
+			term_flushln(p);
+		break;
+	default:
+		term_newln(p);
+		break;
+	}
+
+	/*
+	 * Now that our output is flushed, we can reset our tags.  Since
+	 * only `It' sets these flags, we're free to assume that nobody
+	 * has munged them in the meanwhile.
+	 */
+
+	p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP | TERMP_BRIND | TERMP_HANG);
+	p->trailspace = 0;
+}
+
+static int
+termp_nm_pre(DECL_ARGS)
+{
+	const char	*cp;
+
+	if (n->type == ROFFT_BLOCK) {
+		p->flags |= TERMP_PREKEEP;
+		return 1;
+	}
+
+	if (n->type == ROFFT_BODY) {
+		if (n->child == NULL)
+			return 0;
+		p->flags |= TERMP_NOSPACE;
+		cp = NULL;
+		if (n->prev->child != NULL)
+		    cp = n->prev->child->string;
+		if (cp == NULL)
+			cp = meta->name;
+		if (cp == NULL)
+			p->tcol->offset += term_len(p, 6);
+		else
+			p->tcol->offset += term_len(p, 1) +
+			    term_strlen(p, cp);
+		return 1;
+	}
+
+	if (n->child == NULL)
+		return 0;
+
+	if (n->type == ROFFT_HEAD)
+		synopsis_pre(p, n->parent);
+
+	if (n->type == ROFFT_HEAD &&
+	    n->next != NULL && n->next->child != NULL) {
+		p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND;
+		p->trailspace = 1;
+		p->tcol->rmargin = p->tcol->offset + term_len(p, 1);
+		if (n->child == NULL)
+			p->tcol->rmargin += term_strlen(p, meta->name);
+		else if (n->child->type == ROFFT_TEXT) {
+			p->tcol->rmargin += term_strlen(p, n->child->string);
+			if (n->child->next != NULL)
+				p->flags |= TERMP_HANG;
+		} else {
+			p->tcol->rmargin += term_len(p, 5);
+			p->flags |= TERMP_HANG;
+		}
+	}
+
+	term_fontpush(p, TERMFONT_BOLD);
+	return 1;
+}
+
+static void
+termp_nm_post(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_BLOCK) {
+		p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
+	} else if (n->type == ROFFT_HEAD &&
+	    NULL != n->next && NULL != n->next->child) {
+		term_flushln(p);
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
+		p->trailspace = 0;
+	} else if (n->type == ROFFT_BODY && n->child != NULL)
+		term_flushln(p);
+}
+
+static int
+termp_fl_pre(DECL_ARGS)
+{
+
+	termp_tag_pre(p, pair, meta, n);
+	term_fontpush(p, TERMFONT_BOLD);
+	term_word(p, "\\-");
+
+	if (!(n->child == NULL &&
+	    (n->next == NULL ||
+	     n->next->type == ROFFT_TEXT ||
+	     n->next->flags & NODE_LINE)))
+		p->flags |= TERMP_NOSPACE;
+
+	return 1;
+}
+
+static int
+termp__a_pre(DECL_ARGS)
+{
+
+	if (n->prev && MDOC__A == n->prev->tok)
+		if (NULL == n->next || MDOC__A != n->next->tok)
+			term_word(p, "and");
+
+	return 1;
+}
+
+static int
+termp_an_pre(DECL_ARGS)
+{
+
+	if (n->norm->An.auth == AUTH_split) {
+		p->flags &= ~TERMP_NOSPLIT;
+		p->flags |= TERMP_SPLIT;
+		return 0;
+	}
+	if (n->norm->An.auth == AUTH_nosplit) {
+		p->flags &= ~TERMP_SPLIT;
+		p->flags |= TERMP_NOSPLIT;
+		return 0;
+	}
+
+	if (p->flags & TERMP_SPLIT)
+		term_newln(p);
+
+	if (n->sec == SEC_AUTHORS && ! (p->flags & TERMP_NOSPLIT))
+		p->flags |= TERMP_SPLIT;
+
+	return 1;
+}
+
+static int
+termp_ns_pre(DECL_ARGS)
+{
+
+	if ( ! (NODE_LINE & n->flags))
+		p->flags |= TERMP_NOSPACE;
+	return 1;
+}
+
+static int
+termp_rs_pre(DECL_ARGS)
+{
+
+	if (SEC_SEE_ALSO != n->sec)
+		return 1;
+	if (n->type == ROFFT_BLOCK && n->prev != NULL)
+		term_vspace(p);
+	return 1;
+}
+
+static int
+termp_ex_pre(DECL_ARGS)
+{
+	term_newln(p);
+	return 1;
+}
+
+static int
+termp_nd_pre(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_BODY)
+		term_word(p, "\\(en");
+	return 1;
+}
+
+static int
+termp_bl_pre(DECL_ARGS)
+{
+
+	return n->type != ROFFT_HEAD;
+}
+
+static void
+termp_bl_post(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_BLOCK)
+		return;
+	term_newln(p);
+	if (n->tok != MDOC_Bl || n->norm->Bl.type != LIST_column)
+		return;
+	term_tab_set(p, NULL);
+	term_tab_set(p, "T");
+	term_tab_set(p, ".5i");
+}
+
+static int
+termp_xr_pre(DECL_ARGS)
+{
+
+	if (NULL == (n = n->child))
+		return 0;
+
+	assert(n->type == ROFFT_TEXT);
+	term_word(p, n->string);
+
+	if (NULL == (n = n->next))
+		return 0;
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, "(");
+	p->flags |= TERMP_NOSPACE;
+
+	assert(n->type == ROFFT_TEXT);
+	term_word(p, n->string);
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, ")");
+
+	return 0;
+}
+
+/*
+ * This decides how to assert whitespace before any of the SYNOPSIS set
+ * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
+ * macro combos).
+ */
+static void
+synopsis_pre(struct termp *p, const struct roff_node *n)
+{
+	/*
+	 * Obviously, if we're not in a SYNOPSIS or no prior macros
+	 * exist, do nothing.
+	 */
+	if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
+		return;
+
+	/*
+	 * If we're the second in a pair of like elements, emit our
+	 * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
+	 * case we soldier on.
+	 */
+	if (n->prev->tok == n->tok &&
+	    MDOC_Ft != n->tok &&
+	    MDOC_Fo != n->tok &&
+	    MDOC_Fn != n->tok) {
+		term_newln(p);
+		return;
+	}
+
+	/*
+	 * If we're one of the SYNOPSIS set and non-like pair-wise after
+	 * another (or Fn/Fo, which we've let slip through) then assert
+	 * vertical space, else only newline and move on.
+	 */
+	switch (n->prev->tok) {
+	case MDOC_Fd:
+	case MDOC_Fn:
+	case MDOC_Fo:
+	case MDOC_In:
+	case MDOC_Vt:
+		term_vspace(p);
+		break;
+	case MDOC_Ft:
+		if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
+			term_vspace(p);
+			break;
+		}
+		/* FALLTHROUGH */
+	default:
+		term_newln(p);
+		break;
+	}
+}
+
+static int
+termp_vt_pre(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_ELEM) {
+		synopsis_pre(p, n);
+		return termp_under_pre(p, pair, meta, n);
+	} else if (n->type == ROFFT_BLOCK) {
+		synopsis_pre(p, n);
+		return 1;
+	} else if (n->type == ROFFT_HEAD)
+		return 0;
+
+	return termp_under_pre(p, pair, meta, n);
+}
+
+static int
+termp_bold_pre(DECL_ARGS)
+{
+
+	termp_tag_pre(p, pair, meta, n);
+	term_fontpush(p, TERMFONT_BOLD);
+	return 1;
+}
+
+static int
+termp_fd_pre(DECL_ARGS)
+{
+
+	synopsis_pre(p, n);
+	return termp_bold_pre(p, pair, meta, n);
+}
+
+static void
+termp_fd_post(DECL_ARGS)
+{
+
+	term_newln(p);
+}
+
+static int
+termp_sh_pre(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		/*
+		 * Vertical space before sections, except
+		 * when the previous section was empty.
+		 */
+		if (n->prev == NULL ||
+		    n->prev->tok != MDOC_Sh ||
+		    (n->prev->body != NULL &&
+		     n->prev->body->child != NULL))
+			term_vspace(p);
+		break;
+	case ROFFT_HEAD:
+		term_fontpush(p, TERMFONT_BOLD);
+		break;
+	case ROFFT_BODY:
+		p->tcol->offset = term_len(p, p->defindent);
+		term_tab_set(p, NULL);
+		term_tab_set(p, "T");
+		term_tab_set(p, ".5i");
+		switch (n->sec) {
+		case SEC_DESCRIPTION:
+			fn_prio = 0;
+			break;
+		case SEC_AUTHORS:
+			p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+	return 1;
+}
+
+static void
+termp_sh_post(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		term_newln(p);
+		break;
+	case ROFFT_BODY:
+		term_newln(p);
+		p->tcol->offset = 0;
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+termp_lb_post(DECL_ARGS)
+{
+
+	if (SEC_LIBRARY == n->sec && NODE_LINE & n->flags)
+		term_newln(p);
+}
+
+static int
+termp_d1_pre(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_BLOCK)
+		return 1;
+	term_newln(p);
+	p->tcol->offset += term_len(p, p->defindent + 1);
+	term_tab_set(p, NULL);
+	term_tab_set(p, "T");
+	term_tab_set(p, ".5i");
+	return 1;
+}
+
+static int
+termp_ft_pre(DECL_ARGS)
+{
+
+	/* NB: NODE_LINE does not effect this! */
+	synopsis_pre(p, n);
+	term_fontpush(p, TERMFONT_UNDER);
+	return 1;
+}
+
+static int
+termp_fn_pre(DECL_ARGS)
+{
+	size_t		 rmargin = 0;
+	int		 pretty;
+
+	pretty = NODE_SYNPRETTY & n->flags;
+
+	synopsis_pre(p, n);
+
+	if (NULL == (n = n->child))
+		return 0;
+
+	if (pretty) {
+		rmargin = p->tcol->rmargin;
+		p->tcol->rmargin = p->tcol->offset + term_len(p, 4);
+		p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
+	}
+
+	assert(n->type == ROFFT_TEXT);
+	term_fontpush(p, TERMFONT_BOLD);
+	term_word(p, n->string);
+	term_fontpop(p);
+
+	if (n->sec == SEC_DESCRIPTION || n->sec == SEC_CUSTOM)
+		tag_put(n->string, ++fn_prio, p->line);
+
+	if (pretty) {
+		term_flushln(p);
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
+		p->flags |= TERMP_NOPAD;
+		p->tcol->offset = p->tcol->rmargin;
+		p->tcol->rmargin = rmargin;
+	}
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, "(");
+	p->flags |= TERMP_NOSPACE;
+
+	for (n = n->next; n; n = n->next) {
+		assert(n->type == ROFFT_TEXT);
+		term_fontpush(p, TERMFONT_UNDER);
+		if (pretty)
+			p->flags |= TERMP_NBRWORD;
+		term_word(p, n->string);
+		term_fontpop(p);
+
+		if (n->next) {
+			p->flags |= TERMP_NOSPACE;
+			term_word(p, ",");
+		}
+	}
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, ")");
+
+	if (pretty) {
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, ";");
+		term_flushln(p);
+	}
+
+	return 0;
+}
+
+static int
+termp_fa_pre(DECL_ARGS)
+{
+	const struct roff_node	*nn;
+
+	if (n->parent->tok != MDOC_Fo) {
+		term_fontpush(p, TERMFONT_UNDER);
+		return 1;
+	}
+
+	for (nn = n->child; nn; nn = nn->next) {
+		term_fontpush(p, TERMFONT_UNDER);
+		p->flags |= TERMP_NBRWORD;
+		term_word(p, nn->string);
+		term_fontpop(p);
+
+		if (nn->next || (n->next && n->next->tok == MDOC_Fa)) {
+			p->flags |= TERMP_NOSPACE;
+			term_word(p, ",");
+		}
+	}
+
+	return 0;
+}
+
+static int
+termp_bd_pre(DECL_ARGS)
+{
+	size_t			 lm, len;
+	struct roff_node	*nn;
+	int			 offset;
+
+	if (n->type == ROFFT_BLOCK) {
+		print_bvspace(p, n, n);
+		return 1;
+	} else if (n->type == ROFFT_HEAD)
+		return 0;
+
+	/* Handle the -offset argument. */
+
+	if (n->norm->Bd.offs == NULL ||
+	    ! strcmp(n->norm->Bd.offs, "left"))
+		/* nothing */;
+	else if ( ! strcmp(n->norm->Bd.offs, "indent"))
+		p->tcol->offset += term_len(p, p->defindent + 1);
+	else if ( ! strcmp(n->norm->Bd.offs, "indent-two"))
+		p->tcol->offset += term_len(p, (p->defindent + 1) * 2);
+	else {
+		offset = a2width(p, n->norm->Bd.offs);
+		if (offset < 0 && (size_t)(-offset) > p->tcol->offset)
+			p->tcol->offset = 0;
+		else if (offset < SHRT_MAX)
+			p->tcol->offset += offset;
+	}
+
+	/*
+	 * If -ragged or -filled are specified, the block does nothing
+	 * but change the indentation.  If -unfilled or -literal are
+	 * specified, text is printed exactly as entered in the display:
+	 * for macro lines, a newline is appended to the line.  Blank
+	 * lines are allowed.
+	 */
+
+	if (n->norm->Bd.type != DISP_literal &&
+	    n->norm->Bd.type != DISP_unfilled &&
+	    n->norm->Bd.type != DISP_centered)
+		return 1;
+
+	if (n->norm->Bd.type == DISP_literal) {
+		term_tab_set(p, NULL);
+		term_tab_set(p, "T");
+		term_tab_set(p, "8n");
+	}
+
+	lm = p->tcol->offset;
+	p->flags |= TERMP_BRNEVER;
+	for (nn = n->child; nn != NULL; nn = nn->next) {
+		if (n->norm->Bd.type == DISP_centered) {
+			if (nn->type == ROFFT_TEXT) {
+				len = term_strlen(p, nn->string);
+				p->tcol->offset = len >= p->tcol->rmargin ?
+				    0 : lm + len >= p->tcol->rmargin ?
+				    p->tcol->rmargin - len :
+				    (lm + p->tcol->rmargin - len) / 2;
+			} else
+				p->tcol->offset = lm;
+		}
+		print_mdoc_node(p, pair, meta, nn);
+		/*
+		 * If the printed node flushes its own line, then we
+		 * needn't do it here as well.  This is hacky, but the
+		 * notion of selective eoln whitespace is pretty dumb
+		 * anyway, so don't sweat it.
+		 */
+		if (nn->tok < ROFF_MAX)
+			continue;
+		switch (nn->tok) {
+		case MDOC_Sm:
+		case MDOC_Bl:
+		case MDOC_D1:
+		case MDOC_Dl:
+		case MDOC_Lp:
+		case MDOC_Pp:
+			continue;
+		default:
+			break;
+		}
+		if (p->flags & TERMP_NONEWLINE ||
+		    (nn->next && ! (nn->next->flags & NODE_LINE)))
+			continue;
+		term_flushln(p);
+		p->flags |= TERMP_NOSPACE;
+	}
+	p->flags &= ~TERMP_BRNEVER;
+	return 0;
+}
+
+static void
+termp_bd_post(DECL_ARGS)
+{
+	if (n->type != ROFFT_BODY)
+		return;
+	if (DISP_literal == n->norm->Bd.type ||
+	    DISP_unfilled == n->norm->Bd.type)
+		p->flags |= TERMP_BRNEVER;
+	p->flags |= TERMP_NOSPACE;
+	term_newln(p);
+	p->flags &= ~TERMP_BRNEVER;
+}
+
+static int
+termp_xx_pre(DECL_ARGS)
+{
+	if ((n->aux = p->flags & TERMP_PREKEEP) == 0)
+		p->flags |= TERMP_PREKEEP;
+	return 1;
+}
+
+static void
+termp_xx_post(DECL_ARGS)
+{
+	if (n->aux == 0)
+		p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
+}
+
+static void
+termp_pf_post(DECL_ARGS)
+{
+
+	if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
+		p->flags |= TERMP_NOSPACE;
+}
+
+static int
+termp_ss_pre(DECL_ARGS)
+{
+	struct roff_node *nn;
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		term_newln(p);
+		for (nn = n->prev; nn != NULL; nn = nn->prev)
+			if ((nn->flags & NODE_NOPRT) == 0)
+				break;
+		if (nn != NULL)
+			term_vspace(p);
+		break;
+	case ROFFT_HEAD:
+		term_fontpush(p, TERMFONT_BOLD);
+		p->tcol->offset = term_len(p, (p->defindent+1)/2);
+		break;
+	case ROFFT_BODY:
+		p->tcol->offset = term_len(p, p->defindent);
+		term_tab_set(p, NULL);
+		term_tab_set(p, "T");
+		term_tab_set(p, ".5i");
+		break;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static void
+termp_ss_post(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_HEAD || n->type == ROFFT_BODY)
+		term_newln(p);
+}
+
+static int
+termp_cd_pre(DECL_ARGS)
+{
+
+	synopsis_pre(p, n);
+	term_fontpush(p, TERMFONT_BOLD);
+	return 1;
+}
+
+static int
+termp_in_pre(DECL_ARGS)
+{
+
+	synopsis_pre(p, n);
+
+	if (NODE_SYNPRETTY & n->flags && NODE_LINE & n->flags) {
+		term_fontpush(p, TERMFONT_BOLD);
+		term_word(p, "#include");
+		term_word(p, "<");
+	} else {
+		term_word(p, "<");
+		term_fontpush(p, TERMFONT_UNDER);
+	}
+
+	p->flags |= TERMP_NOSPACE;
+	return 1;
+}
+
+static void
+termp_in_post(DECL_ARGS)
+{
+
+	if (NODE_SYNPRETTY & n->flags)
+		term_fontpush(p, TERMFONT_BOLD);
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, ">");
+
+	if (NODE_SYNPRETTY & n->flags)
+		term_fontpop(p);
+}
+
+static int
+termp_pp_pre(DECL_ARGS)
+{
+	fn_prio = 0;
+	term_vspace(p);
+	return 0;
+}
+
+static int
+termp_skip_pre(DECL_ARGS)
+{
+
+	return 0;
+}
+
+static int
+termp_quote_pre(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
+		return 1;
+
+	switch (n->tok) {
+	case MDOC_Ao:
+	case MDOC_Aq:
+		term_word(p, n->child != NULL && n->child->next == NULL &&
+		    n->child->tok == MDOC_Mt ? "<" : "\\(la");
+		break;
+	case MDOC_Bro:
+	case MDOC_Brq:
+		term_word(p, "{");
+		break;
+	case MDOC_Oo:
+	case MDOC_Op:
+	case MDOC_Bo:
+	case MDOC_Bq:
+		term_word(p, "[");
+		break;
+	case MDOC__T:
+		/* FALLTHROUGH */
+	case MDOC_Do:
+	case MDOC_Dq:
+		term_word(p, "\\(Lq");
+		break;
+	case MDOC_En:
+		if (NULL == n->norm->Es ||
+		    NULL == n->norm->Es->child)
+			return 1;
+		term_word(p, n->norm->Es->child->string);
+		break;
+	case MDOC_Po:
+	case MDOC_Pq:
+		term_word(p, "(");
+		break;
+	case MDOC_Qo:
+	case MDOC_Qq:
+		term_word(p, "\"");
+		break;
+	case MDOC_Ql:
+	case MDOC_So:
+	case MDOC_Sq:
+		term_word(p, "\\(oq");
+		break;
+	default:
+		abort();
+	}
+
+	p->flags |= TERMP_NOSPACE;
+	return 1;
+}
+
+static void
+termp_quote_post(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
+		return;
+
+	p->flags |= TERMP_NOSPACE;
+
+	switch (n->tok) {
+	case MDOC_Ao:
+	case MDOC_Aq:
+		term_word(p, n->child != NULL && n->child->next == NULL &&
+		    n->child->tok == MDOC_Mt ? ">" : "\\(ra");
+		break;
+	case MDOC_Bro:
+	case MDOC_Brq:
+		term_word(p, "}");
+		break;
+	case MDOC_Oo:
+	case MDOC_Op:
+	case MDOC_Bo:
+	case MDOC_Bq:
+		term_word(p, "]");
+		break;
+	case MDOC__T:
+		/* FALLTHROUGH */
+	case MDOC_Do:
+	case MDOC_Dq:
+		term_word(p, "\\(Rq");
+		break;
+	case MDOC_En:
+		if (n->norm->Es == NULL ||
+		    n->norm->Es->child == NULL ||
+		    n->norm->Es->child->next == NULL)
+			p->flags &= ~TERMP_NOSPACE;
+		else
+			term_word(p, n->norm->Es->child->next->string);
+		break;
+	case MDOC_Po:
+	case MDOC_Pq:
+		term_word(p, ")");
+		break;
+	case MDOC_Qo:
+	case MDOC_Qq:
+		term_word(p, "\"");
+		break;
+	case MDOC_Ql:
+	case MDOC_So:
+	case MDOC_Sq:
+		term_word(p, "\\(cq");
+		break;
+	default:
+		abort();
+	}
+}
+
+static int
+termp_eo_pre(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_BODY)
+		return 1;
+
+	if (n->end == ENDBODY_NOT &&
+	    n->parent->head->child == NULL &&
+	    n->child != NULL &&
+	    n->child->end != ENDBODY_NOT)
+		term_word(p, "\\&");
+	else if (n->end != ENDBODY_NOT ? n->child != NULL :
+	     n->parent->head->child != NULL && (n->child != NULL ||
+	     (n->parent->tail != NULL && n->parent->tail->child != NULL)))
+		p->flags |= TERMP_NOSPACE;
+
+	return 1;
+}
+
+static void
+termp_eo_post(DECL_ARGS)
+{
+	int	 body, tail;
+
+	if (n->type != ROFFT_BODY)
+		return;
+
+	if (n->end != ENDBODY_NOT) {
+		p->flags &= ~TERMP_NOSPACE;
+		return;
+	}
+
+	body = n->child != NULL || n->parent->head->child != NULL;
+	tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
+
+	if (body && tail)
+		p->flags |= TERMP_NOSPACE;
+	else if ( ! (body || tail))
+		term_word(p, "\\&");
+	else if ( ! tail)
+		p->flags &= ~TERMP_NOSPACE;
+}
+
+static int
+termp_fo_pre(DECL_ARGS)
+{
+	size_t		 rmargin = 0;
+	int		 pretty;
+
+	pretty = NODE_SYNPRETTY & n->flags;
+
+	if (n->type == ROFFT_BLOCK) {
+		synopsis_pre(p, n);
+		return 1;
+	} else if (n->type == ROFFT_BODY) {
+		if (pretty) {
+			rmargin = p->tcol->rmargin;
+			p->tcol->rmargin = p->tcol->offset + term_len(p, 4);
+			p->flags |= TERMP_NOBREAK | TERMP_BRIND |
+					TERMP_HANG;
+		}
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, "(");
+		p->flags |= TERMP_NOSPACE;
+		if (pretty) {
+			term_flushln(p);
+			p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
+					TERMP_HANG);
+			p->flags |= TERMP_NOPAD;
+			p->tcol->offset = p->tcol->rmargin;
+			p->tcol->rmargin = rmargin;
+		}
+		return 1;
+	}
+
+	if (NULL == n->child)
+		return 0;
+
+	/* XXX: we drop non-initial arguments as per groff. */
+
+	assert(n->child->string);
+	term_fontpush(p, TERMFONT_BOLD);
+	term_word(p, n->child->string);
+	return 0;
+}
+
+static void
+termp_fo_post(DECL_ARGS)
+{
+
+	if (n->type != ROFFT_BODY)
+		return;
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, ")");
+
+	if (NODE_SYNPRETTY & n->flags) {
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, ";");
+		term_flushln(p);
+	}
+}
+
+static int
+termp_bf_pre(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_HEAD)
+		return 0;
+	else if (n->type != ROFFT_BODY)
+		return 1;
+
+	if (FONT_Em == n->norm->Bf.font)
+		term_fontpush(p, TERMFONT_UNDER);
+	else if (FONT_Sy == n->norm->Bf.font)
+		term_fontpush(p, TERMFONT_BOLD);
+	else
+		term_fontpush(p, TERMFONT_NONE);
+
+	return 1;
+}
+
+static int
+termp_sm_pre(DECL_ARGS)
+{
+
+	if (NULL == n->child)
+		p->flags ^= TERMP_NONOSPACE;
+	else if (0 == strcmp("on", n->child->string))
+		p->flags &= ~TERMP_NONOSPACE;
+	else
+		p->flags |= TERMP_NONOSPACE;
+
+	if (p->col && ! (TERMP_NONOSPACE & p->flags))
+		p->flags &= ~TERMP_NOSPACE;
+
+	return 0;
+}
+
+static int
+termp_ap_pre(DECL_ARGS)
+{
+
+	p->flags |= TERMP_NOSPACE;
+	term_word(p, "'");
+	p->flags |= TERMP_NOSPACE;
+	return 1;
+}
+
+static void
+termp____post(DECL_ARGS)
+{
+
+	/*
+	 * Handle lists of authors.  In general, print each followed by
+	 * a comma.  Don't print the comma if there are only two
+	 * authors.
+	 */
+	if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
+		if (NULL == n->next->next || MDOC__A != n->next->next->tok)
+			if (NULL == n->prev || MDOC__A != n->prev->tok)
+				return;
+
+	/* TODO: %U. */
+
+	if (NULL == n->parent || MDOC_Rs != n->parent->tok)
+		return;
+
+	p->flags |= TERMP_NOSPACE;
+	if (NULL == n->next) {
+		term_word(p, ".");
+		p->flags |= TERMP_SENTENCE;
+	} else
+		term_word(p, ",");
+}
+
+static int
+termp_li_pre(DECL_ARGS)
+{
+
+	termp_tag_pre(p, pair, meta, n);
+	term_fontpush(p, TERMFONT_NONE);
+	return 1;
+}
+
+static int
+termp_lk_pre(DECL_ARGS)
+{
+	const struct roff_node *link, *descr, *punct;
+	int display;
+
+	if ((link = n->child) == NULL)
+		return 0;
+
+	/* Find beginning of trailing punctuation. */
+	punct = n->last;
+	while (punct != link && punct->flags & NODE_DELIMC)
+		punct = punct->prev;
+	punct = punct->next;
+
+	/* Link text. */
+	if ((descr = link->next) != NULL && descr != punct) {
+		term_fontpush(p, TERMFONT_UNDER);
+		while (descr != punct) {
+			if (descr->flags & (NODE_DELIMC | NODE_DELIMO))
+				p->flags |= TERMP_NOSPACE;
+			term_word(p, descr->string);
+			descr = descr->next;
+		}
+		term_fontpop(p);
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, ":");
+	}
+
+	/* Link target. */
+	display = term_strlen(p, link->string) >= 26;
+	if (display) {
+		term_newln(p);
+		p->tcol->offset += term_len(p, p->defindent + 1);
+	}
+	term_fontpush(p, TERMFONT_BOLD);
+	term_word(p, link->string);
+	term_fontpop(p);
+
+	/* Trailing punctuation. */
+	while (punct != NULL) {
+		p->flags |= TERMP_NOSPACE;
+		term_word(p, punct->string);
+		punct = punct->next;
+	}
+	if (display)
+		term_newln(p);
+	return 0;
+}
+
+static int
+termp_bk_pre(DECL_ARGS)
+{
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		break;
+	case ROFFT_HEAD:
+		return 0;
+	case ROFFT_BODY:
+		if (n->parent->args != NULL || n->prev->child == NULL)
+			p->flags |= TERMP_PREKEEP;
+		break;
+	default:
+		abort();
+	}
+
+	return 1;
+}
+
+static void
+termp_bk_post(DECL_ARGS)
+{
+
+	if (n->type == ROFFT_BODY)
+		p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
+}
+
+static void
+termp__t_post(DECL_ARGS)
+{
+
+	/*
+	 * If we're in an `Rs' and there's a journal present, then quote
+	 * us instead of underlining us (for disambiguation).
+	 */
+	if (n->parent && MDOC_Rs == n->parent->tok &&
+	    n->parent->norm->Rs.quote_T)
+		termp_quote_post(p, pair, meta, n);
+
+	termp____post(p, pair, meta, n);
+}
+
+static int
+termp__t_pre(DECL_ARGS)
+{
+
+	/*
+	 * If we're in an `Rs' and there's a journal present, then quote
+	 * us instead of underlining us (for disambiguation).
+	 */
+	if (n->parent && MDOC_Rs == n->parent->tok &&
+	    n->parent->norm->Rs.quote_T)
+		return termp_quote_pre(p, pair, meta, n);
+
+	term_fontpush(p, TERMFONT_UNDER);
+	return 1;
+}
+
+static int
+termp_under_pre(DECL_ARGS)
+{
+
+	term_fontpush(p, TERMFONT_UNDER);
+	return 1;
+}
+
+static int
+termp_em_pre(DECL_ARGS)
+{
+	if (n->child != NULL &&
+	    n->child->type == ROFFT_TEXT)
+		tag_put(n->child->string, 0, p->line);
+	term_fontpush(p, TERMFONT_UNDER);
+	return 1;
+}
+
+static int
+termp_sy_pre(DECL_ARGS)
+{
+	if (n->child != NULL &&
+	    n->child->type == ROFFT_TEXT)
+		tag_put(n->child->string, 0, p->line);
+	term_fontpush(p, TERMFONT_BOLD);
+	return 1;
+}
+
+static int
+termp_er_pre(DECL_ARGS)
+{
+
+	if (n->sec == SEC_ERRORS &&
+	    (n->parent->tok == MDOC_It ||
+	     (n->parent->tok == MDOC_Bq &&
+	      n->parent->parent->parent->tok == MDOC_It)))
+		tag_put(n->child->string, 1, p->line);
+	return 1;
+}
+
+static int
+termp_tag_pre(DECL_ARGS)
+{
+
+	if (n->child != NULL &&
+	    n->child->type == ROFFT_TEXT &&
+	    (n->prev == NULL ||
+	     (n->prev->type == ROFFT_TEXT &&
+	      strcmp(n->prev->string, "|") == 0)) &&
+	    (n->parent->tok == MDOC_It ||
+	     (n->parent->tok == MDOC_Xo &&
+	      n->parent->parent->prev == NULL &&
+	      n->parent->parent->parent->tok == MDOC_It)))
+		tag_put(n->child->string, 1, p->line);
+	return 1;
+}

Added: vendor/mandoc/dist/mdoc_validate.c
===================================================================
--- vendor/mandoc/dist/mdoc_validate.c	                        (rev 0)
+++ vendor/mandoc/dist/mdoc_validate.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2906 @@
+/*	$Id: mdoc_validate.c,v 1.352 2017/08/02 13:29:04 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010-2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2010 Joerg Sonnenberger <joerg at netbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#ifndef OSNAME
+#include <sys/utsname.h>
+#endif
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "mandoc_xr.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libmdoc.h"
+
+/* FIXME: .Bl -diag can't have non-text children in HEAD. */
+
+#define	POST_ARGS struct roff_man *mdoc
+
+enum	check_ineq {
+	CHECK_LT,
+	CHECK_GT,
+	CHECK_EQ
+};
+
+typedef	void	(*v_post)(POST_ARGS);
+
+static	int	 build_list(struct roff_man *, int);
+static	void	 check_text(struct roff_man *, int, int, char *);
+static	void	 check_argv(struct roff_man *,
+			struct roff_node *, struct mdoc_argv *);
+static	void	 check_args(struct roff_man *, struct roff_node *);
+static	void	 check_toptext(struct roff_man *, int, int, const char *);
+static	int	 child_an(const struct roff_node *);
+static	size_t		macro2len(enum roff_tok);
+static	void	 rewrite_macro2len(struct roff_man *, char **);
+static	int	 similar(const char *, const char *);
+
+static	void	 post_an(POST_ARGS);
+static	void	 post_an_norm(POST_ARGS);
+static	void	 post_at(POST_ARGS);
+static	void	 post_bd(POST_ARGS);
+static	void	 post_bf(POST_ARGS);
+static	void	 post_bk(POST_ARGS);
+static	void	 post_bl(POST_ARGS);
+static	void	 post_bl_block(POST_ARGS);
+static	void	 post_bl_head(POST_ARGS);
+static	void	 post_bl_norm(POST_ARGS);
+static	void	 post_bx(POST_ARGS);
+static	void	 post_defaults(POST_ARGS);
+static	void	 post_display(POST_ARGS);
+static	void	 post_dd(POST_ARGS);
+static	void	 post_delim(POST_ARGS);
+static	void	 post_delim_nb(POST_ARGS);
+static	void	 post_dt(POST_ARGS);
+static	void	 post_en(POST_ARGS);
+static	void	 post_es(POST_ARGS);
+static	void	 post_eoln(POST_ARGS);
+static	void	 post_ex(POST_ARGS);
+static	void	 post_fa(POST_ARGS);
+static	void	 post_fn(POST_ARGS);
+static	void	 post_fname(POST_ARGS);
+static	void	 post_fo(POST_ARGS);
+static	void	 post_hyph(POST_ARGS);
+static	void	 post_ignpar(POST_ARGS);
+static	void	 post_it(POST_ARGS);
+static	void	 post_lb(POST_ARGS);
+static	void	 post_nd(POST_ARGS);
+static	void	 post_nm(POST_ARGS);
+static	void	 post_ns(POST_ARGS);
+static	void	 post_obsolete(POST_ARGS);
+static	void	 post_os(POST_ARGS);
+static	void	 post_par(POST_ARGS);
+static	void	 post_prevpar(POST_ARGS);
+static	void	 post_root(POST_ARGS);
+static	void	 post_rs(POST_ARGS);
+static	void	 post_rv(POST_ARGS);
+static	void	 post_sh(POST_ARGS);
+static	void	 post_sh_head(POST_ARGS);
+static	void	 post_sh_name(POST_ARGS);
+static	void	 post_sh_see_also(POST_ARGS);
+static	void	 post_sh_authors(POST_ARGS);
+static	void	 post_sm(POST_ARGS);
+static	void	 post_st(POST_ARGS);
+static	void	 post_std(POST_ARGS);
+static	void	 post_sx(POST_ARGS);
+static	void	 post_useless(POST_ARGS);
+static	void	 post_xr(POST_ARGS);
+static	void	 post_xx(POST_ARGS);
+
+static	const v_post __mdoc_valids[MDOC_MAX - MDOC_Dd] = {
+	post_dd,	/* Dd */
+	post_dt,	/* Dt */
+	post_os,	/* Os */
+	post_sh,	/* Sh */
+	post_ignpar,	/* Ss */
+	post_par,	/* Pp */
+	post_display,	/* D1 */
+	post_display,	/* Dl */
+	post_display,	/* Bd */
+	NULL,		/* Ed */
+	post_bl,	/* Bl */
+	NULL,		/* El */
+	post_it,	/* It */
+	post_delim_nb,	/* Ad */
+	post_an,	/* An */
+	NULL,		/* Ap */
+	post_defaults,	/* Ar */
+	NULL,		/* Cd */
+	post_delim_nb,	/* Cm */
+	post_delim_nb,	/* Dv */
+	post_delim_nb,	/* Er */
+	post_delim_nb,	/* Ev */
+	post_ex,	/* Ex */
+	post_fa,	/* Fa */
+	NULL,		/* Fd */
+	post_delim_nb,	/* Fl */
+	post_fn,	/* Fn */
+	post_delim_nb,	/* Ft */
+	post_delim_nb,	/* Ic */
+	post_delim_nb,	/* In */
+	post_defaults,	/* Li */
+	post_nd,	/* Nd */
+	post_nm,	/* Nm */
+	post_delim_nb,	/* Op */
+	post_obsolete,	/* Ot */
+	post_defaults,	/* Pa */
+	post_rv,	/* Rv */
+	post_st,	/* St */
+	post_delim_nb,	/* Va */
+	post_delim_nb,	/* Vt */
+	post_xr,	/* Xr */
+	NULL,		/* %A */
+	post_hyph,	/* %B */ /* FIXME: can be used outside Rs/Re. */
+	NULL,		/* %D */
+	NULL,		/* %I */
+	NULL,		/* %J */
+	post_hyph,	/* %N */
+	post_hyph,	/* %O */
+	NULL,		/* %P */
+	post_hyph,	/* %R */
+	post_hyph,	/* %T */ /* FIXME: can be used outside Rs/Re. */
+	NULL,		/* %V */
+	NULL,		/* Ac */
+	post_delim_nb,	/* Ao */
+	post_delim_nb,	/* Aq */
+	post_at,	/* At */
+	NULL,		/* Bc */
+	post_bf,	/* Bf */
+	post_delim_nb,	/* Bo */
+	NULL,		/* Bq */
+	post_xx,	/* Bsx */
+	post_bx,	/* Bx */
+	post_obsolete,	/* Db */
+	NULL,		/* Dc */
+	NULL,		/* Do */
+	NULL,		/* Dq */
+	NULL,		/* Ec */
+	NULL,		/* Ef */
+	post_delim_nb,	/* Em */
+	NULL,		/* Eo */
+	post_xx,	/* Fx */
+	post_delim_nb,	/* Ms */
+	NULL,		/* No */
+	post_ns,	/* Ns */
+	post_xx,	/* Nx */
+	post_xx,	/* Ox */
+	NULL,		/* Pc */
+	NULL,		/* Pf */
+	post_delim_nb,	/* Po */
+	post_delim_nb,	/* Pq */
+	NULL,		/* Qc */
+	post_delim_nb,	/* Ql */
+	post_delim_nb,	/* Qo */
+	post_delim_nb,	/* Qq */
+	NULL,		/* Re */
+	post_rs,	/* Rs */
+	NULL,		/* Sc */
+	post_delim_nb,	/* So */
+	post_delim_nb,	/* Sq */
+	post_sm,	/* Sm */
+	post_sx,	/* Sx */
+	post_delim_nb,	/* Sy */
+	post_useless,	/* Tn */
+	post_xx,	/* Ux */
+	NULL,		/* Xc */
+	NULL,		/* Xo */
+	post_fo,	/* Fo */
+	NULL,		/* Fc */
+	post_delim_nb,	/* Oo */
+	NULL,		/* Oc */
+	post_bk,	/* Bk */
+	NULL,		/* Ek */
+	post_eoln,	/* Bt */
+	post_obsolete,	/* Hf */
+	post_obsolete,	/* Fr */
+	post_eoln,	/* Ud */
+	post_lb,	/* Lb */
+	post_par,	/* Lp */
+	post_delim_nb,	/* Lk */
+	post_defaults,	/* Mt */
+	post_delim_nb,	/* Brq */
+	post_delim_nb,	/* Bro */
+	NULL,		/* Brc */
+	NULL,		/* %C */
+	post_es,	/* Es */
+	post_en,	/* En */
+	post_xx,	/* Dx */
+	NULL,		/* %Q */
+	NULL,		/* %U */
+	NULL,		/* Ta */
+};
+static	const v_post *const mdoc_valids = __mdoc_valids - MDOC_Dd;
+
+#define	RSORD_MAX 14 /* Number of `Rs' blocks. */
+
+static	const enum roff_tok rsord[RSORD_MAX] = {
+	MDOC__A,
+	MDOC__T,
+	MDOC__B,
+	MDOC__I,
+	MDOC__J,
+	MDOC__R,
+	MDOC__N,
+	MDOC__V,
+	MDOC__U,
+	MDOC__P,
+	MDOC__Q,
+	MDOC__C,
+	MDOC__D,
+	MDOC__O
+};
+
+static	const char * const secnames[SEC__MAX] = {
+	NULL,
+	"NAME",
+	"LIBRARY",
+	"SYNOPSIS",
+	"DESCRIPTION",
+	"CONTEXT",
+	"IMPLEMENTATION NOTES",
+	"RETURN VALUES",
+	"ENVIRONMENT",
+	"FILES",
+	"EXIT STATUS",
+	"EXAMPLES",
+	"DIAGNOSTICS",
+	"COMPATIBILITY",
+	"ERRORS",
+	"SEE ALSO",
+	"STANDARDS",
+	"HISTORY",
+	"AUTHORS",
+	"CAVEATS",
+	"BUGS",
+	"SECURITY CONSIDERATIONS",
+	NULL
+};
+
+
+void
+mdoc_node_validate(struct roff_man *mdoc)
+{
+	struct roff_node *n;
+	const v_post *p;
+
+	n = mdoc->last;
+	mdoc->last = mdoc->last->child;
+	while (mdoc->last != NULL) {
+		mdoc_node_validate(mdoc);
+		if (mdoc->last == n)
+			mdoc->last = mdoc->last->child;
+		else
+			mdoc->last = mdoc->last->next;
+	}
+
+	mdoc->last = n;
+	mdoc->next = ROFF_NEXT_SIBLING;
+	switch (n->type) {
+	case ROFFT_TEXT:
+		if (n->sec != SEC_SYNOPSIS ||
+		    (n->parent->tok != MDOC_Cd && n->parent->tok != MDOC_Fd))
+			check_text(mdoc, n->line, n->pos, n->string);
+		if (n->parent->tok == MDOC_It ||
+		    (n->parent->type == ROFFT_BODY &&
+		     (n->parent->tok == MDOC_Sh ||
+		      n->parent->tok == MDOC_Ss)))
+			check_toptext(mdoc, n->line, n->pos, n->string);
+		break;
+	case ROFFT_EQN:
+	case ROFFT_TBL:
+		break;
+	case ROFFT_ROOT:
+		post_root(mdoc);
+		break;
+	default:
+		check_args(mdoc, mdoc->last);
+
+		/*
+		 * Closing delimiters are not special at the
+		 * beginning of a block, opening delimiters
+		 * are not special at the end.
+		 */
+
+		if (n->child != NULL)
+			n->child->flags &= ~NODE_DELIMC;
+		if (n->last != NULL)
+			n->last->flags &= ~NODE_DELIMO;
+
+		/* Call the macro's postprocessor. */
+
+		if (n->tok < ROFF_MAX) {
+			switch(n->tok) {
+			case ROFF_br:
+			case ROFF_sp:
+				post_par(mdoc);
+				break;
+			default:
+				roff_validate(mdoc);
+				break;
+			}
+			break;
+		}
+
+		assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+		p = mdoc_valids + n->tok;
+		if (*p)
+			(*p)(mdoc);
+		if (mdoc->last == n)
+			mdoc_state(mdoc, n);
+		break;
+	}
+}
+
+static void
+check_args(struct roff_man *mdoc, struct roff_node *n)
+{
+	int		 i;
+
+	if (NULL == n->args)
+		return;
+
+	assert(n->args->argc);
+	for (i = 0; i < (int)n->args->argc; i++)
+		check_argv(mdoc, n, &n->args->argv[i]);
+}
+
+static void
+check_argv(struct roff_man *mdoc, struct roff_node *n, struct mdoc_argv *v)
+{
+	int		 i;
+
+	for (i = 0; i < (int)v->sz; i++)
+		check_text(mdoc, v->line, v->pos, v->value[i]);
+}
+
+static void
+check_text(struct roff_man *mdoc, int ln, int pos, char *p)
+{
+	char		*cp;
+
+	if (MDOC_LITERAL & mdoc->flags)
+		return;
+
+	for (cp = p; NULL != (p = strchr(p, '\t')); p++)
+		mandoc_msg(MANDOCERR_FI_TAB, mdoc->parse,
+		    ln, pos + (int)(p - cp), NULL);
+}
+
+static void
+check_toptext(struct roff_man *mdoc, int ln, int pos, const char *p)
+{
+	const char	*cp, *cpr;
+
+	if (*p == '\0')
+		return;
+
+	if ((cp = strstr(p, "OpenBSD")) != NULL)
+		mandoc_msg(MANDOCERR_BX, mdoc->parse,
+		    ln, pos + (cp - p), "Ox");
+	if ((cp = strstr(p, "NetBSD")) != NULL)
+		mandoc_msg(MANDOCERR_BX, mdoc->parse,
+		    ln, pos + (cp - p), "Nx");
+	if ((cp = strstr(p, "FreeBSD")) != NULL)
+		mandoc_msg(MANDOCERR_BX, mdoc->parse,
+		    ln, pos + (cp - p), "Fx");
+	if ((cp = strstr(p, "DragonFly")) != NULL)
+		mandoc_msg(MANDOCERR_BX, mdoc->parse,
+		    ln, pos + (cp - p), "Dx");
+
+	cp = p;
+	while ((cp = strstr(cp + 1, "()")) != NULL) {
+		for (cpr = cp - 1; cpr >= p; cpr--)
+			if (*cpr != '_' && !isalnum((unsigned char)*cpr))
+				break;
+		if ((cpr < p || *cpr == ' ') && cpr + 1 < cp) {
+			cpr++;
+			mandoc_vmsg(MANDOCERR_FUNC, mdoc->parse,
+			    ln, pos + (cpr - p),
+			    "%.*s()", (int)(cp - cpr), cpr);
+		}
+	}
+}
+
+static void
+post_delim(POST_ARGS)
+{
+	const struct roff_node	*nch;
+	const char		*lc;
+	enum mdelim		 delim;
+	enum roff_tok		 tok;
+
+	tok = mdoc->last->tok;
+	nch = mdoc->last->last;
+	if (nch == NULL || nch->type != ROFFT_TEXT)
+		return;
+	lc = strchr(nch->string, '\0') - 1;
+	if (lc < nch->string)
+		return;
+	delim = mdoc_isdelim(lc);
+	if (delim == DELIM_NONE || delim == DELIM_OPEN)
+		return;
+	if (*lc == ')' && (tok == MDOC_Nd || tok == MDOC_Sh ||
+	    tok == MDOC_Ss || tok == MDOC_Fo))
+		return;
+
+	mandoc_vmsg(MANDOCERR_DELIM, mdoc->parse,
+	    nch->line, nch->pos + (lc - nch->string),
+	    "%s%s %s", roff_name[tok],
+	    nch == mdoc->last->child ? "" : " ...", nch->string);
+}
+
+static void
+post_delim_nb(POST_ARGS)
+{
+	const struct roff_node	*nch;
+	const char		*lc, *cp;
+	int			 nw;
+	enum mdelim		 delim;
+	enum roff_tok		 tok;
+
+	/*
+	 * Find candidates: at least two bytes,
+	 * the last one a closing or middle delimiter.
+	 */
+
+	tok = mdoc->last->tok;
+	nch = mdoc->last->last;
+	if (nch == NULL || nch->type != ROFFT_TEXT)
+		return;
+	lc = strchr(nch->string, '\0') - 1;
+	if (lc <= nch->string)
+		return;
+	delim = mdoc_isdelim(lc);
+	if (delim == DELIM_NONE || delim == DELIM_OPEN)
+		return;
+
+	/*
+	 * Reduce false positives by allowing various cases.
+	 */
+
+	/* Escaped delimiters. */
+	if (lc > nch->string + 1 && lc[-2] == '\\' &&
+	    (lc[-1] == '&' || lc[-1] == 'e'))
+		return;
+
+	/* Specific byte sequences. */
+	switch (*lc) {
+	case ')':
+		for (cp = lc; cp >= nch->string; cp--)
+			if (*cp == '(')
+				return;
+		break;
+	case '.':
+		if (lc > nch->string + 1 && lc[-2] == '.' && lc[-1] == '.')
+			return;
+		if (lc[-1] == '.')
+			return;
+		break;
+	case ';':
+		if (tok == MDOC_Vt)
+			return;
+		break;
+	case '?':
+		if (lc[-1] == '?')
+			return;
+		break;
+	case ']':
+		for (cp = lc; cp >= nch->string; cp--)
+			if (*cp == '[')
+				return;
+		break;
+	case '|':
+		if (lc == nch->string + 1 && lc[-1] == '|')
+			return;
+	default:
+		break;
+	}
+
+	/* Exactly two non-alphanumeric bytes. */
+	if (lc == nch->string + 1 && !isalnum((unsigned char)lc[-1]))
+		return;
+
+	/* At least three alphabetic words with a sentence ending. */
+	if (strchr("!.:?", *lc) != NULL && (tok == MDOC_Em ||
+	    tok == MDOC_Li || tok == MDOC_Po || tok == MDOC_Pq ||
+	    tok == MDOC_Sy)) {
+		nw = 0;
+		for (cp = lc - 1; cp >= nch->string; cp--) {
+			if (*cp == ' ') {
+				nw++;
+				if (cp > nch->string && cp[-1] == ',')
+					cp--;
+			} else if (isalpha((unsigned int)*cp)) {
+				if (nw > 1)
+					return;
+			} else
+				break;
+		}
+	}
+
+	mandoc_vmsg(MANDOCERR_DELIM_NB, mdoc->parse,
+	    nch->line, nch->pos + (lc - nch->string),
+	    "%s%s %s", roff_name[tok],
+	    nch == mdoc->last->child ? "" : " ...", nch->string);
+}
+
+static void
+post_bl_norm(POST_ARGS)
+{
+	struct roff_node *n;
+	struct mdoc_argv *argv, *wa;
+	int		  i;
+	enum mdocargt	  mdoclt;
+	enum mdoc_list	  lt;
+
+	n = mdoc->last->parent;
+	n->norm->Bl.type = LIST__NONE;
+
+	/*
+	 * First figure out which kind of list to use: bind ourselves to
+	 * the first mentioned list type and warn about any remaining
+	 * ones.  If we find no list type, we default to LIST_item.
+	 */
+
+	wa = (n->args == NULL) ? NULL : n->args->argv;
+	mdoclt = MDOC_ARG_MAX;
+	for (i = 0; n->args && i < (int)n->args->argc; i++) {
+		argv = n->args->argv + i;
+		lt = LIST__NONE;
+		switch (argv->arg) {
+		/* Set list types. */
+		case MDOC_Bullet:
+			lt = LIST_bullet;
+			break;
+		case MDOC_Dash:
+			lt = LIST_dash;
+			break;
+		case MDOC_Enum:
+			lt = LIST_enum;
+			break;
+		case MDOC_Hyphen:
+			lt = LIST_hyphen;
+			break;
+		case MDOC_Item:
+			lt = LIST_item;
+			break;
+		case MDOC_Tag:
+			lt = LIST_tag;
+			break;
+		case MDOC_Diag:
+			lt = LIST_diag;
+			break;
+		case MDOC_Hang:
+			lt = LIST_hang;
+			break;
+		case MDOC_Ohang:
+			lt = LIST_ohang;
+			break;
+		case MDOC_Inset:
+			lt = LIST_inset;
+			break;
+		case MDOC_Column:
+			lt = LIST_column;
+			break;
+		/* Set list arguments. */
+		case MDOC_Compact:
+			if (n->norm->Bl.comp)
+				mandoc_msg(MANDOCERR_ARG_REP,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bl -compact");
+			n->norm->Bl.comp = 1;
+			break;
+		case MDOC_Width:
+			wa = argv;
+			if (0 == argv->sz) {
+				mandoc_msg(MANDOCERR_ARG_EMPTY,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bl -width");
+				n->norm->Bl.width = "0n";
+				break;
+			}
+			if (NULL != n->norm->Bl.width)
+				mandoc_vmsg(MANDOCERR_ARG_REP,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bl -width %s",
+				    argv->value[0]);
+			rewrite_macro2len(mdoc, argv->value);
+			n->norm->Bl.width = argv->value[0];
+			break;
+		case MDOC_Offset:
+			if (0 == argv->sz) {
+				mandoc_msg(MANDOCERR_ARG_EMPTY,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bl -offset");
+				break;
+			}
+			if (NULL != n->norm->Bl.offs)
+				mandoc_vmsg(MANDOCERR_ARG_REP,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bl -offset %s",
+				    argv->value[0]);
+			rewrite_macro2len(mdoc, argv->value);
+			n->norm->Bl.offs = argv->value[0];
+			break;
+		default:
+			continue;
+		}
+		if (LIST__NONE == lt)
+			continue;
+		mdoclt = argv->arg;
+
+		/* Check: multiple list types. */
+
+		if (LIST__NONE != n->norm->Bl.type) {
+			mandoc_vmsg(MANDOCERR_BL_REP,
+			    mdoc->parse, n->line, n->pos,
+			    "Bl -%s", mdoc_argnames[argv->arg]);
+			continue;
+		}
+
+		/* The list type should come first. */
+
+		if (n->norm->Bl.width ||
+		    n->norm->Bl.offs ||
+		    n->norm->Bl.comp)
+			mandoc_vmsg(MANDOCERR_BL_LATETYPE,
+			    mdoc->parse, n->line, n->pos, "Bl -%s",
+			    mdoc_argnames[n->args->argv[0].arg]);
+
+		n->norm->Bl.type = lt;
+		if (LIST_column == lt) {
+			n->norm->Bl.ncols = argv->sz;
+			n->norm->Bl.cols = (void *)argv->value;
+		}
+	}
+
+	/* Allow lists to default to LIST_item. */
+
+	if (LIST__NONE == n->norm->Bl.type) {
+		mandoc_msg(MANDOCERR_BL_NOTYPE, mdoc->parse,
+		    n->line, n->pos, "Bl");
+		n->norm->Bl.type = LIST_item;
+		mdoclt = MDOC_Item;
+	}
+
+	/*
+	 * Validate the width field.  Some list types don't need width
+	 * types and should be warned about them.  Others should have it
+	 * and must also be warned.  Yet others have a default and need
+	 * no warning.
+	 */
+
+	switch (n->norm->Bl.type) {
+	case LIST_tag:
+		if (n->norm->Bl.width == NULL)
+			mandoc_msg(MANDOCERR_BL_NOWIDTH, mdoc->parse,
+			    n->line, n->pos, "Bl -tag");
+		break;
+	case LIST_column:
+	case LIST_diag:
+	case LIST_ohang:
+	case LIST_inset:
+	case LIST_item:
+		if (n->norm->Bl.width != NULL)
+			mandoc_vmsg(MANDOCERR_BL_SKIPW, mdoc->parse,
+			    wa->line, wa->pos, "Bl -%s",
+			    mdoc_argnames[mdoclt]);
+		n->norm->Bl.width = NULL;
+		break;
+	case LIST_bullet:
+	case LIST_dash:
+	case LIST_hyphen:
+		if (n->norm->Bl.width == NULL)
+			n->norm->Bl.width = "2n";
+		break;
+	case LIST_enum:
+		if (n->norm->Bl.width == NULL)
+			n->norm->Bl.width = "3n";
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+post_bd(POST_ARGS)
+{
+	struct roff_node *n;
+	struct mdoc_argv *argv;
+	int		  i;
+	enum mdoc_disp	  dt;
+
+	n = mdoc->last;
+	for (i = 0; n->args && i < (int)n->args->argc; i++) {
+		argv = n->args->argv + i;
+		dt = DISP__NONE;
+
+		switch (argv->arg) {
+		case MDOC_Centred:
+			dt = DISP_centered;
+			break;
+		case MDOC_Ragged:
+			dt = DISP_ragged;
+			break;
+		case MDOC_Unfilled:
+			dt = DISP_unfilled;
+			break;
+		case MDOC_Filled:
+			dt = DISP_filled;
+			break;
+		case MDOC_Literal:
+			dt = DISP_literal;
+			break;
+		case MDOC_File:
+			mandoc_msg(MANDOCERR_BD_FILE, mdoc->parse,
+			    n->line, n->pos, NULL);
+			break;
+		case MDOC_Offset:
+			if (0 == argv->sz) {
+				mandoc_msg(MANDOCERR_ARG_EMPTY,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bd -offset");
+				break;
+			}
+			if (NULL != n->norm->Bd.offs)
+				mandoc_vmsg(MANDOCERR_ARG_REP,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bd -offset %s",
+				    argv->value[0]);
+			rewrite_macro2len(mdoc, argv->value);
+			n->norm->Bd.offs = argv->value[0];
+			break;
+		case MDOC_Compact:
+			if (n->norm->Bd.comp)
+				mandoc_msg(MANDOCERR_ARG_REP,
+				    mdoc->parse, argv->line,
+				    argv->pos, "Bd -compact");
+			n->norm->Bd.comp = 1;
+			break;
+		default:
+			abort();
+		}
+		if (DISP__NONE == dt)
+			continue;
+
+		if (DISP__NONE == n->norm->Bd.type)
+			n->norm->Bd.type = dt;
+		else
+			mandoc_vmsg(MANDOCERR_BD_REP,
+			    mdoc->parse, n->line, n->pos,
+			    "Bd -%s", mdoc_argnames[argv->arg]);
+	}
+
+	if (DISP__NONE == n->norm->Bd.type) {
+		mandoc_msg(MANDOCERR_BD_NOTYPE, mdoc->parse,
+		    n->line, n->pos, "Bd");
+		n->norm->Bd.type = DISP_ragged;
+	}
+}
+
+/*
+ * Stand-alone line macros.
+ */
+
+static void
+post_an_norm(POST_ARGS)
+{
+	struct roff_node *n;
+	struct mdoc_argv *argv;
+	size_t	 i;
+
+	n = mdoc->last;
+	if (n->args == NULL)
+		return;
+
+	for (i = 1; i < n->args->argc; i++) {
+		argv = n->args->argv + i;
+		mandoc_vmsg(MANDOCERR_AN_REP,
+		    mdoc->parse, argv->line, argv->pos,
+		    "An -%s", mdoc_argnames[argv->arg]);
+	}
+
+	argv = n->args->argv;
+	if (argv->arg == MDOC_Split)
+		n->norm->An.auth = AUTH_split;
+	else if (argv->arg == MDOC_Nosplit)
+		n->norm->An.auth = AUTH_nosplit;
+	else
+		abort();
+}
+
+static void
+post_eoln(POST_ARGS)
+{
+	struct roff_node	*n;
+
+	post_useless(mdoc);
+	n = mdoc->last;
+	if (n->child != NULL)
+		mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse, n->line,
+		    n->pos, "%s %s", roff_name[n->tok], n->child->string);
+
+	while (n->child != NULL)
+		roff_node_delete(mdoc, n->child);
+
+	roff_word_alloc(mdoc, n->line, n->pos, n->tok == MDOC_Bt ?
+	    "is currently in beta test." : "currently under development.");
+	mdoc->last->flags |= NODE_EOS | NODE_NOSRC;
+	mdoc->last = n;
+}
+
+static int
+build_list(struct roff_man *mdoc, int tok)
+{
+	struct roff_node	*n;
+	int			 ic;
+
+	n = mdoc->last->next;
+	for (ic = 1;; ic++) {
+		roff_elem_alloc(mdoc, n->line, n->pos, tok);
+		mdoc->last->flags |= NODE_NOSRC;
+		mdoc_node_relink(mdoc, n);
+		n = mdoc->last = mdoc->last->parent;
+		mdoc->next = ROFF_NEXT_SIBLING;
+		if (n->next == NULL)
+			return ic;
+		if (ic > 1 || n->next->next != NULL) {
+			roff_word_alloc(mdoc, n->line, n->pos, ",");
+			mdoc->last->flags |= NODE_DELIMC | NODE_NOSRC;
+		}
+		n = mdoc->last->next;
+		if (n->next == NULL) {
+			roff_word_alloc(mdoc, n->line, n->pos, "and");
+			mdoc->last->flags |= NODE_NOSRC;
+		}
+	}
+}
+
+static void
+post_ex(POST_ARGS)
+{
+	struct roff_node	*n;
+	int			 ic;
+
+	post_std(mdoc);
+
+	n = mdoc->last;
+	mdoc->next = ROFF_NEXT_CHILD;
+	roff_word_alloc(mdoc, n->line, n->pos, "The");
+	mdoc->last->flags |= NODE_NOSRC;
+
+	if (mdoc->last->next != NULL)
+		ic = build_list(mdoc, MDOC_Nm);
+	else if (mdoc->meta.name != NULL) {
+		roff_elem_alloc(mdoc, n->line, n->pos, MDOC_Nm);
+		mdoc->last->flags |= NODE_NOSRC;
+		roff_word_alloc(mdoc, n->line, n->pos, mdoc->meta.name);
+		mdoc->last->flags |= NODE_NOSRC;
+		mdoc->last = mdoc->last->parent;
+		mdoc->next = ROFF_NEXT_SIBLING;
+		ic = 1;
+	} else {
+		mandoc_msg(MANDOCERR_EX_NONAME, mdoc->parse,
+		    n->line, n->pos, "Ex");
+		ic = 0;
+	}
+
+	roff_word_alloc(mdoc, n->line, n->pos,
+	    ic > 1 ? "utilities exit\\~0" : "utility exits\\~0");
+	mdoc->last->flags |= NODE_NOSRC;
+	roff_word_alloc(mdoc, n->line, n->pos,
+	    "on success, and\\~>0 if an error occurs.");
+	mdoc->last->flags |= NODE_EOS | NODE_NOSRC;
+	mdoc->last = n;
+}
+
+static void
+post_lb(POST_ARGS)
+{
+	struct roff_node	*n;
+	const char		*p;
+
+	post_delim_nb(mdoc);
+
+	n = mdoc->last;
+	assert(n->child->type == ROFFT_TEXT);
+	mdoc->next = ROFF_NEXT_CHILD;
+
+	if ((p = mdoc_a2lib(n->child->string)) != NULL) {
+		n->child->flags |= NODE_NOPRT;
+		roff_word_alloc(mdoc, n->line, n->pos, p);
+		mdoc->last->flags = NODE_NOSRC;
+		mdoc->last = n;
+		return;
+	}
+
+	mandoc_vmsg(MANDOCERR_LB_BAD, mdoc->parse, n->child->line,
+	    n->child->pos, "Lb %s", n->child->string);
+
+	roff_word_alloc(mdoc, n->line, n->pos, "library");
+	mdoc->last->flags = NODE_NOSRC;
+	roff_word_alloc(mdoc, n->line, n->pos, "\\(Lq");
+	mdoc->last->flags = NODE_DELIMO | NODE_NOSRC;
+	mdoc->last = mdoc->last->next;
+	roff_word_alloc(mdoc, n->line, n->pos, "\\(Rq");
+	mdoc->last->flags = NODE_DELIMC | NODE_NOSRC;
+	mdoc->last = n;
+}
+
+static void
+post_rv(POST_ARGS)
+{
+	struct roff_node	*n;
+	int			 ic;
+
+	post_std(mdoc);
+
+	n = mdoc->last;
+	mdoc->next = ROFF_NEXT_CHILD;
+	if (n->child != NULL) {
+		roff_word_alloc(mdoc, n->line, n->pos, "The");
+		mdoc->last->flags |= NODE_NOSRC;
+		ic = build_list(mdoc, MDOC_Fn);
+		roff_word_alloc(mdoc, n->line, n->pos,
+		    ic > 1 ? "functions return" : "function returns");
+		mdoc->last->flags |= NODE_NOSRC;
+		roff_word_alloc(mdoc, n->line, n->pos,
+		    "the value\\~0 if successful;");
+	} else
+		roff_word_alloc(mdoc, n->line, n->pos, "Upon successful "
+		    "completion, the value\\~0 is returned;");
+	mdoc->last->flags |= NODE_NOSRC;
+
+	roff_word_alloc(mdoc, n->line, n->pos, "otherwise "
+	    "the value\\~\\-1 is returned and the global variable");
+	mdoc->last->flags |= NODE_NOSRC;
+	roff_elem_alloc(mdoc, n->line, n->pos, MDOC_Va);
+	mdoc->last->flags |= NODE_NOSRC;
+	roff_word_alloc(mdoc, n->line, n->pos, "errno");
+	mdoc->last->flags |= NODE_NOSRC;
+	mdoc->last = mdoc->last->parent;
+	mdoc->next = ROFF_NEXT_SIBLING;
+	roff_word_alloc(mdoc, n->line, n->pos,
+	    "is set to indicate the error.");
+	mdoc->last->flags |= NODE_EOS | NODE_NOSRC;
+	mdoc->last = n;
+}
+
+static void
+post_std(POST_ARGS)
+{
+	struct roff_node *n;
+
+	post_delim(mdoc);
+
+	n = mdoc->last;
+	if (n->args && n->args->argc == 1)
+		if (n->args->argv[0].arg == MDOC_Std)
+			return;
+
+	mandoc_msg(MANDOCERR_ARG_STD, mdoc->parse,
+	    n->line, n->pos, roff_name[n->tok]);
+}
+
+static void
+post_st(POST_ARGS)
+{
+	struct roff_node	 *n, *nch;
+	const char		 *p;
+
+	n = mdoc->last;
+	nch = n->child;
+	assert(nch->type == ROFFT_TEXT);
+
+	if ((p = mdoc_a2st(nch->string)) == NULL) {
+		mandoc_vmsg(MANDOCERR_ST_BAD, mdoc->parse,
+		    nch->line, nch->pos, "St %s", nch->string);
+		roff_node_delete(mdoc, n);
+		return;
+	}
+
+	nch->flags |= NODE_NOPRT;
+	mdoc->next = ROFF_NEXT_CHILD;
+	roff_word_alloc(mdoc, nch->line, nch->pos, p);
+	mdoc->last->flags |= NODE_NOSRC;
+	mdoc->last= n;
+}
+
+static void
+post_obsolete(POST_ARGS)
+{
+	struct roff_node *n;
+
+	n = mdoc->last;
+	if (n->type == ROFFT_ELEM || n->type == ROFFT_BLOCK)
+		mandoc_msg(MANDOCERR_MACRO_OBS, mdoc->parse,
+		    n->line, n->pos, roff_name[n->tok]);
+}
+
+static void
+post_useless(POST_ARGS)
+{
+	struct roff_node *n;
+
+	n = mdoc->last;
+	mandoc_msg(MANDOCERR_MACRO_USELESS, mdoc->parse,
+	    n->line, n->pos, roff_name[n->tok]);
+}
+
+/*
+ * Block macros.
+ */
+
+static void
+post_bf(POST_ARGS)
+{
+	struct roff_node *np, *nch;
+
+	/*
+	 * Unlike other data pointers, these are "housed" by the HEAD
+	 * element, which contains the goods.
+	 */
+
+	np = mdoc->last;
+	if (np->type != ROFFT_HEAD)
+		return;
+
+	assert(np->parent->type == ROFFT_BLOCK);
+	assert(np->parent->tok == MDOC_Bf);
+
+	/* Check the number of arguments. */
+
+	nch = np->child;
+	if (np->parent->args == NULL) {
+		if (nch == NULL) {
+			mandoc_msg(MANDOCERR_BF_NOFONT, mdoc->parse,
+			    np->line, np->pos, "Bf");
+			return;
+		}
+		nch = nch->next;
+	}
+	if (nch != NULL)
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
+		    nch->line, nch->pos, "Bf ... %s", nch->string);
+
+	/* Extract argument into data. */
+
+	if (np->parent->args != NULL) {
+		switch (np->parent->args->argv[0].arg) {
+		case MDOC_Emphasis:
+			np->norm->Bf.font = FONT_Em;
+			break;
+		case MDOC_Literal:
+			np->norm->Bf.font = FONT_Li;
+			break;
+		case MDOC_Symbolic:
+			np->norm->Bf.font = FONT_Sy;
+			break;
+		default:
+			abort();
+		}
+		return;
+	}
+
+	/* Extract parameter into data. */
+
+	if ( ! strcmp(np->child->string, "Em"))
+		np->norm->Bf.font = FONT_Em;
+	else if ( ! strcmp(np->child->string, "Li"))
+		np->norm->Bf.font = FONT_Li;
+	else if ( ! strcmp(np->child->string, "Sy"))
+		np->norm->Bf.font = FONT_Sy;
+	else
+		mandoc_vmsg(MANDOCERR_BF_BADFONT, mdoc->parse,
+		    np->child->line, np->child->pos,
+		    "Bf %s", np->child->string);
+}
+
+static void
+post_fname(POST_ARGS)
+{
+	const struct roff_node	*n;
+	const char		*cp;
+	size_t			 pos;
+
+	n = mdoc->last->child;
+	pos = strcspn(n->string, "()");
+	cp = n->string + pos;
+	if ( ! (cp[0] == '\0' || (cp[0] == '(' && cp[1] == '*')))
+		mandoc_msg(MANDOCERR_FN_PAREN, mdoc->parse,
+		    n->line, n->pos + pos, n->string);
+}
+
+static void
+post_fn(POST_ARGS)
+{
+
+	post_fname(mdoc);
+	post_fa(mdoc);
+}
+
+static void
+post_fo(POST_ARGS)
+{
+	const struct roff_node	*n;
+
+	n = mdoc->last;
+
+	if (n->type != ROFFT_HEAD)
+		return;
+
+	if (n->child == NULL) {
+		mandoc_msg(MANDOCERR_FO_NOHEAD, mdoc->parse,
+		    n->line, n->pos, "Fo");
+		return;
+	}
+	if (n->child != n->last) {
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
+		    n->child->next->line, n->child->next->pos,
+		    "Fo ... %s", n->child->next->string);
+		while (n->child != n->last)
+			roff_node_delete(mdoc, n->last);
+	} else
+		post_delim(mdoc);
+
+	post_fname(mdoc);
+}
+
+static void
+post_fa(POST_ARGS)
+{
+	const struct roff_node *n;
+	const char *cp;
+
+	for (n = mdoc->last->child; n != NULL; n = n->next) {
+		for (cp = n->string; *cp != '\0'; cp++) {
+			/* Ignore callbacks and alterations. */
+			if (*cp == '(' || *cp == '{')
+				break;
+			if (*cp != ',')
+				continue;
+			mandoc_msg(MANDOCERR_FA_COMMA, mdoc->parse,
+			    n->line, n->pos + (cp - n->string),
+			    n->string);
+			break;
+		}
+	}
+	post_delim_nb(mdoc);
+}
+
+static void
+post_nm(POST_ARGS)
+{
+	struct roff_node	*n;
+
+	n = mdoc->last;
+
+	if (n->sec == SEC_NAME && n->child != NULL &&
+	    n->child->type == ROFFT_TEXT && mdoc->meta.msec != NULL)
+		mandoc_xr_add(mdoc->meta.msec, n->child->string, -1, -1);
+
+	if (n->last != NULL &&
+	    (n->last->tok == MDOC_Pp ||
+	     n->last->tok == MDOC_Lp))
+		mdoc_node_relink(mdoc, n->last);
+
+	if (mdoc->meta.name == NULL)
+		deroff(&mdoc->meta.name, n);
+
+	if (mdoc->meta.name == NULL ||
+	    (mdoc->lastsec == SEC_NAME && n->child == NULL))
+		mandoc_msg(MANDOCERR_NM_NONAME, mdoc->parse,
+		    n->line, n->pos, "Nm");
+
+	switch (n->type) {
+	case ROFFT_ELEM:
+		post_delim_nb(mdoc);
+		break;
+	case ROFFT_HEAD:
+		post_delim(mdoc);
+		break;
+	default:
+		return;
+	}
+
+	if ((n->child != NULL && n->child->type == ROFFT_TEXT) ||
+	    mdoc->meta.name == NULL)
+		return;
+
+	mdoc->next = ROFF_NEXT_CHILD;
+	roff_word_alloc(mdoc, n->line, n->pos, mdoc->meta.name);
+	mdoc->last->flags |= NODE_NOSRC;
+	mdoc->last = n;
+}
+
+static void
+post_nd(POST_ARGS)
+{
+	struct roff_node	*n;
+
+	n = mdoc->last;
+
+	if (n->type != ROFFT_BODY)
+		return;
+
+	if (n->sec != SEC_NAME)
+		mandoc_msg(MANDOCERR_ND_LATE, mdoc->parse,
+		    n->line, n->pos, "Nd");
+
+	if (n->child == NULL)
+		mandoc_msg(MANDOCERR_ND_EMPTY, mdoc->parse,
+		    n->line, n->pos, "Nd");
+	else
+		post_delim(mdoc);
+
+	post_hyph(mdoc);
+}
+
+static void
+post_display(POST_ARGS)
+{
+	struct roff_node *n, *np;
+
+	n = mdoc->last;
+	switch (n->type) {
+	case ROFFT_BODY:
+		if (n->end != ENDBODY_NOT) {
+			if (n->tok == MDOC_Bd &&
+			    n->body->parent->args == NULL)
+				roff_node_delete(mdoc, n);
+		} else if (n->child == NULL)
+			mandoc_msg(MANDOCERR_BLK_EMPTY, mdoc->parse,
+			    n->line, n->pos, roff_name[n->tok]);
+		else if (n->tok == MDOC_D1)
+			post_hyph(mdoc);
+		break;
+	case ROFFT_BLOCK:
+		if (n->tok == MDOC_Bd) {
+			if (n->args == NULL) {
+				mandoc_msg(MANDOCERR_BD_NOARG,
+				    mdoc->parse, n->line, n->pos, "Bd");
+				mdoc->next = ROFF_NEXT_SIBLING;
+				while (n->body->child != NULL)
+					mdoc_node_relink(mdoc,
+					    n->body->child);
+				roff_node_delete(mdoc, n);
+				break;
+			}
+			post_bd(mdoc);
+			post_prevpar(mdoc);
+		}
+		for (np = n->parent; np != NULL; np = np->parent) {
+			if (np->type == ROFFT_BLOCK && np->tok == MDOC_Bd) {
+				mandoc_vmsg(MANDOCERR_BD_NEST,
+				    mdoc->parse, n->line, n->pos,
+				    "%s in Bd", roff_name[n->tok]);
+				break;
+			}
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+post_defaults(POST_ARGS)
+{
+	struct roff_node *nn;
+
+	if (mdoc->last->child != NULL) {
+		post_delim_nb(mdoc);
+		return;
+	}
+
+	/*
+	 * The `Ar' defaults to "file ..." if no value is provided as an
+	 * argument; the `Mt' and `Pa' macros use "~"; the `Li' just
+	 * gets an empty string.
+	 */
+
+	nn = mdoc->last;
+	switch (nn->tok) {
+	case MDOC_Ar:
+		mdoc->next = ROFF_NEXT_CHILD;
+		roff_word_alloc(mdoc, nn->line, nn->pos, "file");
+		mdoc->last->flags |= NODE_NOSRC;
+		roff_word_alloc(mdoc, nn->line, nn->pos, "...");
+		mdoc->last->flags |= NODE_NOSRC;
+		break;
+	case MDOC_Pa:
+	case MDOC_Mt:
+		mdoc->next = ROFF_NEXT_CHILD;
+		roff_word_alloc(mdoc, nn->line, nn->pos, "~");
+		mdoc->last->flags |= NODE_NOSRC;
+		break;
+	default:
+		abort();
+	}
+	mdoc->last = nn;
+}
+
+static void
+post_at(POST_ARGS)
+{
+	struct roff_node	*n, *nch;
+	const char		*att;
+
+	n = mdoc->last;
+	nch = n->child;
+
+	/*
+	 * If we have a child, look it up in the standard keys.  If a
+	 * key exist, use that instead of the child; if it doesn't,
+	 * prefix "AT&T UNIX " to the existing data.
+	 */
+
+	att = NULL;
+	if (nch != NULL && ((att = mdoc_a2att(nch->string)) == NULL))
+		mandoc_vmsg(MANDOCERR_AT_BAD, mdoc->parse,
+		    nch->line, nch->pos, "At %s", nch->string);
+
+	mdoc->next = ROFF_NEXT_CHILD;
+	if (att != NULL) {
+		roff_word_alloc(mdoc, nch->line, nch->pos, att);
+		nch->flags |= NODE_NOPRT;
+	} else
+		roff_word_alloc(mdoc, n->line, n->pos, "AT&T UNIX");
+	mdoc->last->flags |= NODE_NOSRC;
+	mdoc->last = n;
+}
+
+static void
+post_an(POST_ARGS)
+{
+	struct roff_node *np, *nch;
+
+	post_an_norm(mdoc);
+
+	np = mdoc->last;
+	nch = np->child;
+	if (np->norm->An.auth == AUTH__NONE) {
+		if (nch == NULL)
+			mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
+			    np->line, np->pos, "An");
+		else
+			post_delim_nb(mdoc);
+	} else if (nch != NULL)
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
+		    nch->line, nch->pos, "An ... %s", nch->string);
+}
+
+static void
+post_en(POST_ARGS)
+{
+
+	post_obsolete(mdoc);
+	if (mdoc->last->type == ROFFT_BLOCK)
+		mdoc->last->norm->Es = mdoc->last_es;
+}
+
+static void
+post_es(POST_ARGS)
+{
+
+	post_obsolete(mdoc);
+	mdoc->last_es = mdoc->last;
+}
+
+static void
+post_xx(POST_ARGS)
+{
+	struct roff_node	*n;
+	const char		*os;
+	char			*v;
+
+	post_delim_nb(mdoc);
+
+	n = mdoc->last;
+	switch (n->tok) {
+	case MDOC_Bsx:
+		os = "BSD/OS";
+		break;
+	case MDOC_Dx:
+		os = "DragonFly";
+		break;
+	case MDOC_Fx:
+		os = "FreeBSD";
+		break;
+	case MDOC_Nx:
+		os = "NetBSD";
+		if (n->child == NULL)
+			break;
+		v = n->child->string;
+		if ((v[0] != '0' && v[0] != '1') || v[1] != '.' ||
+		    v[2] < '0' || v[2] > '9' ||
+		    v[3] < 'a' || v[3] > 'z' || v[4] != '\0')
+			break;
+		n->child->flags |= NODE_NOPRT;
+		mdoc->next = ROFF_NEXT_CHILD;
+		roff_word_alloc(mdoc, n->child->line, n->child->pos, v);
+		v = mdoc->last->string;
+		v[3] = toupper((unsigned char)v[3]);
+		mdoc->last->flags |= NODE_NOSRC;
+		mdoc->last = n;
+		break;
+	case MDOC_Ox:
+		os = "OpenBSD";
+		break;
+	case MDOC_Ux:
+		os = "UNIX";
+		break;
+	default:
+		abort();
+	}
+	mdoc->next = ROFF_NEXT_CHILD;
+	roff_word_alloc(mdoc, n->line, n->pos, os);
+	mdoc->last->flags |= NODE_NOSRC;
+	mdoc->last = n;
+}
+
+static void
+post_it(POST_ARGS)
+{
+	struct roff_node *nbl, *nit, *nch;
+	int		  i, cols;
+	enum mdoc_list	  lt;
+
+	post_prevpar(mdoc);
+
+	nit = mdoc->last;
+	if (nit->type != ROFFT_BLOCK)
+		return;
+
+	nbl = nit->parent->parent;
+	lt = nbl->norm->Bl.type;
+
+	switch (lt) {
+	case LIST_tag:
+	case LIST_hang:
+	case LIST_ohang:
+	case LIST_inset:
+	case LIST_diag:
+		if (nit->head->child == NULL)
+			mandoc_vmsg(MANDOCERR_IT_NOHEAD,
+			    mdoc->parse, nit->line, nit->pos,
+			    "Bl -%s It",
+			    mdoc_argnames[nbl->args->argv[0].arg]);
+		break;
+	case LIST_bullet:
+	case LIST_dash:
+	case LIST_enum:
+	case LIST_hyphen:
+		if (nit->body == NULL || nit->body->child == NULL)
+			mandoc_vmsg(MANDOCERR_IT_NOBODY,
+			    mdoc->parse, nit->line, nit->pos,
+			    "Bl -%s It",
+			    mdoc_argnames[nbl->args->argv[0].arg]);
+		/* FALLTHROUGH */
+	case LIST_item:
+		if ((nch = nit->head->child) != NULL)
+			mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
+			    nit->line, nit->pos, "It %s",
+			    nch->string == NULL ? roff_name[nch->tok] :
+			    nch->string);
+		break;
+	case LIST_column:
+		cols = (int)nbl->norm->Bl.ncols;
+
+		assert(nit->head->child == NULL);
+
+		if (nit->head->next->child == NULL &&
+		    nit->head->next->next == NULL) {
+			mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
+			    nit->line, nit->pos, "It");
+			roff_node_delete(mdoc, nit);
+			break;
+		}
+
+		i = 0;
+		for (nch = nit->child; nch != NULL; nch = nch->next) {
+			if (nch->type != ROFFT_BODY)
+				continue;
+			if (i++ && nch->flags & NODE_LINE)
+				mandoc_msg(MANDOCERR_TA_LINE, mdoc->parse,
+				    nch->line, nch->pos, "Ta");
+		}
+		if (i < cols || i > cols + 1)
+			mandoc_vmsg(MANDOCERR_BL_COL,
+			    mdoc->parse, nit->line, nit->pos,
+			    "%d columns, %d cells", cols, i);
+		else if (nit->head->next->child != NULL &&
+		    nit->head->next->child->line > nit->line)
+			mandoc_msg(MANDOCERR_IT_NOARG, mdoc->parse,
+			    nit->line, nit->pos, "Bl -column It");
+		break;
+	default:
+		abort();
+	}
+}
+
+static void
+post_bl_block(POST_ARGS)
+{
+	struct roff_node *n, *ni, *nc;
+
+	post_prevpar(mdoc);
+
+	n = mdoc->last;
+	for (ni = n->body->child; ni != NULL; ni = ni->next) {
+		if (ni->body == NULL)
+			continue;
+		nc = ni->body->last;
+		while (nc != NULL) {
+			switch (nc->tok) {
+			case MDOC_Pp:
+			case MDOC_Lp:
+			case ROFF_br:
+				break;
+			default:
+				nc = NULL;
+				continue;
+			}
+			if (ni->next == NULL) {
+				mandoc_msg(MANDOCERR_PAR_MOVE,
+				    mdoc->parse, nc->line, nc->pos,
+				    roff_name[nc->tok]);
+				mdoc_node_relink(mdoc, nc);
+			} else if (n->norm->Bl.comp == 0 &&
+			    n->norm->Bl.type != LIST_column) {
+				mandoc_vmsg(MANDOCERR_PAR_SKIP,
+				    mdoc->parse, nc->line, nc->pos,
+				    "%s before It", roff_name[nc->tok]);
+				roff_node_delete(mdoc, nc);
+			} else
+				break;
+			nc = ni->body->last;
+		}
+	}
+}
+
+/*
+ * If the argument of -offset or -width is a macro,
+ * replace it with the associated default width.
+ */
+static void
+rewrite_macro2len(struct roff_man *mdoc, char **arg)
+{
+	size_t		  width;
+	enum roff_tok	  tok;
+
+	if (*arg == NULL)
+		return;
+	else if ( ! strcmp(*arg, "Ds"))
+		width = 6;
+	else if ((tok = roffhash_find(mdoc->mdocmac, *arg, 0)) == TOKEN_NONE)
+		return;
+	else
+		width = macro2len(tok);
+
+	free(*arg);
+	mandoc_asprintf(arg, "%zun", width);
+}
+
+static void
+post_bl_head(POST_ARGS)
+{
+	struct roff_node *nbl, *nh, *nch, *nnext;
+	struct mdoc_argv *argv;
+	int		  i, j;
+
+	post_bl_norm(mdoc);
+
+	nh = mdoc->last;
+	if (nh->norm->Bl.type != LIST_column) {
+		if ((nch = nh->child) == NULL)
+			return;
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
+		    nch->line, nch->pos, "Bl ... %s", nch->string);
+		while (nch != NULL) {
+			roff_node_delete(mdoc, nch);
+			nch = nh->child;
+		}
+		return;
+	}
+
+	/*
+	 * Append old-style lists, where the column width specifiers
+	 * trail as macro parameters, to the new-style ("normal-form")
+	 * lists where they're argument values following -column.
+	 */
+
+	if (nh->child == NULL)
+		return;
+
+	nbl = nh->parent;
+	for (j = 0; j < (int)nbl->args->argc; j++)
+		if (nbl->args->argv[j].arg == MDOC_Column)
+			break;
+
+	assert(j < (int)nbl->args->argc);
+
+	/*
+	 * Accommodate for new-style groff column syntax.  Shuffle the
+	 * child nodes, all of which must be TEXT, as arguments for the
+	 * column field.  Then, delete the head children.
+	 */
+
+	argv = nbl->args->argv + j;
+	i = argv->sz;
+	for (nch = nh->child; nch != NULL; nch = nch->next)
+		argv->sz++;
+	argv->value = mandoc_reallocarray(argv->value,
+	    argv->sz, sizeof(char *));
+
+	nh->norm->Bl.ncols = argv->sz;
+	nh->norm->Bl.cols = (void *)argv->value;
+
+	for (nch = nh->child; nch != NULL; nch = nnext) {
+		argv->value[i++] = nch->string;
+		nch->string = NULL;
+		nnext = nch->next;
+		roff_node_delete(NULL, nch);
+	}
+	nh->child = NULL;
+}
+
+static void
+post_bl(POST_ARGS)
+{
+	struct roff_node	*nparent, *nprev; /* of the Bl block */
+	struct roff_node	*nblock, *nbody;  /* of the Bl */
+	struct roff_node	*nchild, *nnext;  /* of the Bl body */
+	const char		*prev_Er;
+	int			 order;
+
+	nbody = mdoc->last;
+	switch (nbody->type) {
+	case ROFFT_BLOCK:
+		post_bl_block(mdoc);
+		return;
+	case ROFFT_HEAD:
+		post_bl_head(mdoc);
+		return;
+	case ROFFT_BODY:
+		break;
+	default:
+		return;
+	}
+	if (nbody->end != ENDBODY_NOT)
+		return;
+
+	nchild = nbody->child;
+	if (nchild == NULL) {
+		mandoc_msg(MANDOCERR_BLK_EMPTY, mdoc->parse,
+		    nbody->line, nbody->pos, "Bl");
+		return;
+	}
+	while (nchild != NULL) {
+		nnext = nchild->next;
+		if (nchild->tok == MDOC_It ||
+		    (nchild->tok == MDOC_Sm &&
+		     nnext != NULL && nnext->tok == MDOC_It)) {
+			nchild = nnext;
+			continue;
+		}
+
+		/*
+		 * In .Bl -column, the first rows may be implicit,
+		 * that is, they may not start with .It macros.
+		 * Such rows may be followed by nodes generated on the
+		 * roff level, for example .TS, which cannot be moved
+		 * out of the list.  In that case, wrap such roff nodes
+		 * into an implicit row.
+		 */
+
+		if (nchild->prev != NULL) {
+			mdoc->last = nchild;
+			mdoc->next = ROFF_NEXT_SIBLING;
+			roff_block_alloc(mdoc, nchild->line,
+			    nchild->pos, MDOC_It);
+			roff_head_alloc(mdoc, nchild->line,
+			    nchild->pos, MDOC_It);
+			mdoc->next = ROFF_NEXT_SIBLING;
+			roff_body_alloc(mdoc, nchild->line,
+			    nchild->pos, MDOC_It);
+			while (nchild->tok != MDOC_It) {
+				mdoc_node_relink(mdoc, nchild);
+				if ((nchild = nnext) == NULL)
+					break;
+				nnext = nchild->next;
+				mdoc->next = ROFF_NEXT_SIBLING;
+			}
+			mdoc->last = nbody;
+			continue;
+		}
+
+		mandoc_msg(MANDOCERR_BL_MOVE, mdoc->parse,
+		    nchild->line, nchild->pos, roff_name[nchild->tok]);
+
+		/*
+		 * Move the node out of the Bl block.
+		 * First, collect all required node pointers.
+		 */
+
+		nblock  = nbody->parent;
+		nprev   = nblock->prev;
+		nparent = nblock->parent;
+
+		/*
+		 * Unlink this child.
+		 */
+
+		nbody->child = nnext;
+		if (nnext == NULL)
+			nbody->last  = NULL;
+		else
+			nnext->prev = NULL;
+
+		/*
+		 * Relink this child.
+		 */
+
+		nchild->parent = nparent;
+		nchild->prev   = nprev;
+		nchild->next   = nblock;
+
+		nblock->prev = nchild;
+		if (nprev == NULL)
+			nparent->child = nchild;
+		else
+			nprev->next = nchild;
+
+		nchild = nnext;
+	}
+
+	if (mdoc->meta.os_e != MANDOC_OS_NETBSD)
+		return;
+
+	prev_Er = NULL;
+	for (nchild = nbody->child; nchild != NULL; nchild = nchild->next) {
+		if (nchild->tok != MDOC_It)
+			continue;
+		if ((nnext = nchild->head->child) == NULL)
+			continue;
+		if (nnext->type == ROFFT_BLOCK)
+			nnext = nnext->body->child;
+		if (nnext == NULL || nnext->tok != MDOC_Er)
+			continue;
+		nnext = nnext->child;
+		if (prev_Er != NULL) {
+			order = strcmp(prev_Er, nnext->string);
+			if (order > 0)
+				mandoc_vmsg(MANDOCERR_ER_ORDER,
+				    mdoc->parse, nnext->line, nnext->pos,
+				    "Er %s %s (NetBSD)",
+				    prev_Er, nnext->string);
+			else if (order == 0)
+				mandoc_vmsg(MANDOCERR_ER_REP,
+				    mdoc->parse, nnext->line, nnext->pos,
+				    "Er %s (NetBSD)", prev_Er);
+		}
+		prev_Er = nnext->string;
+	}
+}
+
+static void
+post_bk(POST_ARGS)
+{
+	struct roff_node	*n;
+
+	n = mdoc->last;
+
+	if (n->type == ROFFT_BLOCK && n->body->child == NULL) {
+		mandoc_msg(MANDOCERR_BLK_EMPTY,
+		    mdoc->parse, n->line, n->pos, "Bk");
+		roff_node_delete(mdoc, n);
+	}
+}
+
+static void
+post_sm(POST_ARGS)
+{
+	struct roff_node	*nch;
+
+	nch = mdoc->last->child;
+
+	if (nch == NULL) {
+		mdoc->flags ^= MDOC_SMOFF;
+		return;
+	}
+
+	assert(nch->type == ROFFT_TEXT);
+
+	if ( ! strcmp(nch->string, "on")) {
+		mdoc->flags &= ~MDOC_SMOFF;
+		return;
+	}
+	if ( ! strcmp(nch->string, "off")) {
+		mdoc->flags |= MDOC_SMOFF;
+		return;
+	}
+
+	mandoc_vmsg(MANDOCERR_SM_BAD,
+	    mdoc->parse, nch->line, nch->pos,
+	    "%s %s", roff_name[mdoc->last->tok], nch->string);
+	mdoc_node_relink(mdoc, nch);
+	return;
+}
+
+static void
+post_root(POST_ARGS)
+{
+	const char *openbsd_arch[] = {
+		"alpha", "amd64", "arm64", "armv7", "hppa", "i386",
+		"landisk", "loongson", "luna88k", "macppc", "mips64",
+		"octeon", "sgi", "socppc", "sparc64", NULL
+	};
+	const char *netbsd_arch[] = {
+		"acorn26", "acorn32", "algor", "alpha", "amiga",
+		"arc", "atari",
+		"bebox", "cats", "cesfic", "cobalt", "dreamcast",
+		"emips", "evbarm", "evbmips", "evbppc", "evbsh3", "evbsh5",
+		"hp300", "hpcarm", "hpcmips", "hpcsh", "hppa",
+		"i386", "ibmnws", "luna68k",
+		"mac68k", "macppc", "mipsco", "mmeye", "mvme68k", "mvmeppc",
+		"netwinder", "news68k", "newsmips", "next68k",
+		"pc532", "playstation2", "pmax", "pmppc", "prep",
+		"sandpoint", "sbmips", "sgimips", "shark",
+		"sparc", "sparc64", "sun2", "sun3",
+		"vax", "walnut", "x68k", "x86", "x86_64", "xen", NULL
+        };
+	const char **arches[] = { NULL, netbsd_arch, openbsd_arch };
+
+	struct roff_node *n;
+	const char **arch;
+
+	/* Add missing prologue data. */
+
+	if (mdoc->meta.date == NULL)
+		mdoc->meta.date = mdoc->quick ? mandoc_strdup("") :
+		    mandoc_normdate(mdoc, NULL, 0, 0);
+
+	if (mdoc->meta.title == NULL) {
+		mandoc_msg(MANDOCERR_DT_NOTITLE,
+		    mdoc->parse, 0, 0, "EOF");
+		mdoc->meta.title = mandoc_strdup("UNTITLED");
+	}
+
+	if (mdoc->meta.vol == NULL)
+		mdoc->meta.vol = mandoc_strdup("LOCAL");
+
+	if (mdoc->meta.os == NULL) {
+		mandoc_msg(MANDOCERR_OS_MISSING,
+		    mdoc->parse, 0, 0, NULL);
+		mdoc->meta.os = mandoc_strdup("");
+	} else if (mdoc->meta.os_e &&
+	    (mdoc->meta.rcsids & (1 << mdoc->meta.os_e)) == 0)
+		mandoc_msg(MANDOCERR_RCS_MISSING, mdoc->parse, 0, 0,
+		    mdoc->meta.os_e == MANDOC_OS_OPENBSD ?
+		    "(OpenBSD)" : "(NetBSD)");
+
+	if (mdoc->meta.arch != NULL &&
+	    (arch = arches[mdoc->meta.os_e]) != NULL) {
+		while (*arch != NULL && strcmp(*arch, mdoc->meta.arch))
+			arch++;
+		if (*arch == NULL) {
+			n = mdoc->first->child;
+			while (n->tok != MDOC_Dt)
+				n = n->next;
+			n = n->child->next->next;
+			mandoc_vmsg(MANDOCERR_ARCH_BAD,
+			    mdoc->parse, n->line, n->pos,
+			    "Dt ... %s %s", mdoc->meta.arch,
+			    mdoc->meta.os_e == MANDOC_OS_OPENBSD ?
+			    "(OpenBSD)" : "(NetBSD)");
+		}
+	}
+
+	/* Check that we begin with a proper `Sh'. */
+
+	n = mdoc->first->child;
+	while (n != NULL && n->tok >= MDOC_Dd &&
+	    mdoc_macros[n->tok].flags & MDOC_PROLOGUE)
+		n = n->next;
+
+	if (n == NULL)
+		mandoc_msg(MANDOCERR_DOC_EMPTY, mdoc->parse, 0, 0, NULL);
+	else if (n->tok != MDOC_Sh)
+		mandoc_msg(MANDOCERR_SEC_BEFORE, mdoc->parse,
+		    n->line, n->pos, roff_name[n->tok]);
+}
+
+static void
+post_rs(POST_ARGS)
+{
+	struct roff_node *np, *nch, *next, *prev;
+	int		  i, j;
+
+	np = mdoc->last;
+
+	if (np->type != ROFFT_BODY)
+		return;
+
+	if (np->child == NULL) {
+		mandoc_msg(MANDOCERR_RS_EMPTY, mdoc->parse,
+		    np->line, np->pos, "Rs");
+		return;
+	}
+
+	/*
+	 * The full `Rs' block needs special handling to order the
+	 * sub-elements according to `rsord'.  Pick through each element
+	 * and correctly order it.  This is an insertion sort.
+	 */
+
+	next = NULL;
+	for (nch = np->child->next; nch != NULL; nch = next) {
+		/* Determine order number of this child. */
+		for (i = 0; i < RSORD_MAX; i++)
+			if (rsord[i] == nch->tok)
+				break;
+
+		if (i == RSORD_MAX) {
+			mandoc_msg(MANDOCERR_RS_BAD, mdoc->parse,
+			    nch->line, nch->pos, roff_name[nch->tok]);
+			i = -1;
+		} else if (nch->tok == MDOC__J || nch->tok == MDOC__B)
+			np->norm->Rs.quote_T++;
+
+		/*
+		 * Remove this child from the chain.  This somewhat
+		 * repeats roff_node_unlink(), but since we're
+		 * just re-ordering, there's no need for the
+		 * full unlink process.
+		 */
+
+		if ((next = nch->next) != NULL)
+			next->prev = nch->prev;
+
+		if ((prev = nch->prev) != NULL)
+			prev->next = nch->next;
+
+		nch->prev = nch->next = NULL;
+
+		/*
+		 * Scan back until we reach a node that's
+		 * to be ordered before this child.
+		 */
+
+		for ( ; prev ; prev = prev->prev) {
+			/* Determine order of `prev'. */
+			for (j = 0; j < RSORD_MAX; j++)
+				if (rsord[j] == prev->tok)
+					break;
+			if (j == RSORD_MAX)
+				j = -1;
+
+			if (j <= i)
+				break;
+		}
+
+		/*
+		 * Set this child back into its correct place
+		 * in front of the `prev' node.
+		 */
+
+		nch->prev = prev;
+
+		if (prev == NULL) {
+			np->child->prev = nch;
+			nch->next = np->child;
+			np->child = nch;
+		} else {
+			if (prev->next)
+				prev->next->prev = nch;
+			nch->next = prev->next;
+			prev->next = nch;
+		}
+	}
+}
+
+/*
+ * For some arguments of some macros,
+ * convert all breakable hyphens into ASCII_HYPH.
+ */
+static void
+post_hyph(POST_ARGS)
+{
+	struct roff_node	*nch;
+	char			*cp;
+
+	for (nch = mdoc->last->child; nch != NULL; nch = nch->next) {
+		if (nch->type != ROFFT_TEXT)
+			continue;
+		cp = nch->string;
+		if (*cp == '\0')
+			continue;
+		while (*(++cp) != '\0')
+			if (*cp == '-' &&
+			    isalpha((unsigned char)cp[-1]) &&
+			    isalpha((unsigned char)cp[1]))
+				*cp = ASCII_HYPH;
+	}
+}
+
+static void
+post_ns(POST_ARGS)
+{
+	struct roff_node	*n;
+
+	n = mdoc->last;
+	if (n->flags & NODE_LINE ||
+	    (n->next != NULL && n->next->flags & NODE_DELIMC))
+		mandoc_msg(MANDOCERR_NS_SKIP, mdoc->parse,
+		    n->line, n->pos, NULL);
+}
+
+static void
+post_sx(POST_ARGS)
+{
+	post_delim(mdoc);
+	post_hyph(mdoc);
+}
+
+static void
+post_sh(POST_ARGS)
+{
+
+	post_ignpar(mdoc);
+
+	switch (mdoc->last->type) {
+	case ROFFT_HEAD:
+		post_sh_head(mdoc);
+		break;
+	case ROFFT_BODY:
+		switch (mdoc->lastsec)  {
+		case SEC_NAME:
+			post_sh_name(mdoc);
+			break;
+		case SEC_SEE_ALSO:
+			post_sh_see_also(mdoc);
+			break;
+		case SEC_AUTHORS:
+			post_sh_authors(mdoc);
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+post_sh_name(POST_ARGS)
+{
+	struct roff_node *n;
+	int hasnm, hasnd;
+
+	hasnm = hasnd = 0;
+
+	for (n = mdoc->last->child; n != NULL; n = n->next) {
+		switch (n->tok) {
+		case MDOC_Nm:
+			if (hasnm && n->child != NULL)
+				mandoc_vmsg(MANDOCERR_NAMESEC_PUNCT,
+				    mdoc->parse, n->line, n->pos,
+				    "Nm %s", n->child->string);
+			hasnm = 1;
+			continue;
+		case MDOC_Nd:
+			hasnd = 1;
+			if (n->next != NULL)
+				mandoc_msg(MANDOCERR_NAMESEC_ND,
+				    mdoc->parse, n->line, n->pos, NULL);
+			break;
+		case TOKEN_NONE:
+			if (n->type == ROFFT_TEXT &&
+			    n->string[0] == ',' && n->string[1] == '\0' &&
+			    n->next != NULL && n->next->tok == MDOC_Nm) {
+				n = n->next;
+				continue;
+			}
+			/* FALLTHROUGH */
+		default:
+			mandoc_msg(MANDOCERR_NAMESEC_BAD, mdoc->parse,
+			    n->line, n->pos, roff_name[n->tok]);
+			continue;
+		}
+		break;
+	}
+
+	if ( ! hasnm)
+		mandoc_msg(MANDOCERR_NAMESEC_NONM, mdoc->parse,
+		    mdoc->last->line, mdoc->last->pos, NULL);
+	if ( ! hasnd)
+		mandoc_msg(MANDOCERR_NAMESEC_NOND, mdoc->parse,
+		    mdoc->last->line, mdoc->last->pos, NULL);
+}
+
+static void
+post_sh_see_also(POST_ARGS)
+{
+	const struct roff_node	*n;
+	const char		*name, *sec;
+	const char		*lastname, *lastsec, *lastpunct;
+	int			 cmp;
+
+	n = mdoc->last->child;
+	lastname = lastsec = lastpunct = NULL;
+	while (n != NULL) {
+		if (n->tok != MDOC_Xr ||
+		    n->child == NULL ||
+		    n->child->next == NULL)
+			break;
+
+		/* Process one .Xr node. */
+
+		name = n->child->string;
+		sec = n->child->next->string;
+		if (lastsec != NULL) {
+			if (lastpunct[0] != ',' || lastpunct[1] != '\0')
+				mandoc_vmsg(MANDOCERR_XR_PUNCT,
+				    mdoc->parse, n->line, n->pos,
+				    "%s before %s(%s)", lastpunct,
+				    name, sec);
+			cmp = strcmp(lastsec, sec);
+			if (cmp > 0)
+				mandoc_vmsg(MANDOCERR_XR_ORDER,
+				    mdoc->parse, n->line, n->pos,
+				    "%s(%s) after %s(%s)", name,
+				    sec, lastname, lastsec);
+			else if (cmp == 0 &&
+			    strcasecmp(lastname, name) > 0)
+				mandoc_vmsg(MANDOCERR_XR_ORDER,
+				    mdoc->parse, n->line, n->pos,
+				    "%s after %s", name, lastname);
+		}
+		lastname = name;
+		lastsec = sec;
+
+		/* Process the following node. */
+
+		n = n->next;
+		if (n == NULL)
+			break;
+		if (n->tok == MDOC_Xr) {
+			lastpunct = "none";
+			continue;
+		}
+		if (n->type != ROFFT_TEXT)
+			break;
+		for (name = n->string; *name != '\0'; name++)
+			if (isalpha((const unsigned char)*name))
+				return;
+		lastpunct = n->string;
+		if (n->next == NULL || n->next->tok == MDOC_Rs)
+			mandoc_vmsg(MANDOCERR_XR_PUNCT, mdoc->parse,
+			    n->line, n->pos, "%s after %s(%s)",
+			    lastpunct, lastname, lastsec);
+		n = n->next;
+	}
+}
+
+static int
+child_an(const struct roff_node *n)
+{
+
+	for (n = n->child; n != NULL; n = n->next)
+		if ((n->tok == MDOC_An && n->child != NULL) || child_an(n))
+			return 1;
+	return 0;
+}
+
+static void
+post_sh_authors(POST_ARGS)
+{
+
+	if ( ! child_an(mdoc->last))
+		mandoc_msg(MANDOCERR_AN_MISSING, mdoc->parse,
+		    mdoc->last->line, mdoc->last->pos, NULL);
+}
+
+/*
+ * Return an upper bound for the string distance (allowing
+ * transpositions).  Not a full Levenshtein implementation
+ * because Levenshtein is quadratic in the string length
+ * and this function is called for every standard name,
+ * so the check for each custom name would be cubic.
+ * The following crude heuristics is linear, resulting
+ * in quadratic behaviour for checking one custom name,
+ * which does not cause measurable slowdown.
+ */
+static int
+similar(const char *s1, const char *s2)
+{
+	const int	maxdist = 3;
+	int		dist = 0;
+
+	while (s1[0] != '\0' && s2[0] != '\0') {
+		if (s1[0] == s2[0]) {
+			s1++;
+			s2++;
+			continue;
+		}
+		if (++dist > maxdist)
+			return INT_MAX;
+		if (s1[1] == s2[1]) {  /* replacement */
+			s1++;
+			s2++;
+		} else if (s1[0] == s2[1] && s1[1] == s2[0]) {
+			s1 += 2;	/* transposition */
+			s2 += 2;
+		} else if (s1[0] == s2[1])  /* insertion */
+			s2++;
+		else if (s1[1] == s2[0])  /* deletion */
+			s1++;
+		else
+			return INT_MAX;
+	}
+	dist += strlen(s1) + strlen(s2);
+	return dist > maxdist ? INT_MAX : dist;
+}
+
+static void
+post_sh_head(POST_ARGS)
+{
+	struct roff_node	*nch;
+	const char		*goodsec;
+	const char *const	*testsec;
+	int			 dist, mindist;
+	enum roff_sec		 sec;
+
+	/*
+	 * Process a new section.  Sections are either "named" or
+	 * "custom".  Custom sections are user-defined, while named ones
+	 * follow a conventional order and may only appear in certain
+	 * manual sections.
+	 */
+
+	sec = mdoc->last->sec;
+
+	/* The NAME should be first. */
+
+	if (sec != SEC_NAME && mdoc->lastnamed == SEC_NONE)
+		mandoc_vmsg(MANDOCERR_NAMESEC_FIRST, mdoc->parse,
+		    mdoc->last->line, mdoc->last->pos, "Sh %s",
+		    sec != SEC_CUSTOM ? secnames[sec] :
+		    (nch = mdoc->last->child) == NULL ? "" :
+		    nch->type == ROFFT_TEXT ? nch->string :
+		    roff_name[nch->tok]);
+
+	/* The SYNOPSIS gets special attention in other areas. */
+
+	if (sec == SEC_SYNOPSIS) {
+		roff_setreg(mdoc->roff, "nS", 1, '=');
+		mdoc->flags |= MDOC_SYNOPSIS;
+	} else {
+		roff_setreg(mdoc->roff, "nS", 0, '=');
+		mdoc->flags &= ~MDOC_SYNOPSIS;
+	}
+
+	/* Mark our last section. */
+
+	mdoc->lastsec = sec;
+
+	/* We don't care about custom sections after this. */
+
+	if (sec == SEC_CUSTOM) {
+		if ((nch = mdoc->last->child) == NULL ||
+		    nch->type != ROFFT_TEXT || nch->next != NULL)
+			return;
+		goodsec = NULL;
+		mindist = INT_MAX;
+		for (testsec = secnames + 1; *testsec != NULL; testsec++) {
+			dist = similar(nch->string, *testsec);
+			if (dist < mindist) {
+				goodsec = *testsec;
+				mindist = dist;
+			}
+		}
+		if (goodsec != NULL)
+			mandoc_vmsg(MANDOCERR_SEC_TYPO, mdoc->parse,
+			    nch->line, nch->pos, "Sh %s instead of %s",
+			    nch->string, goodsec);
+		return;
+	}
+
+	/*
+	 * Check whether our non-custom section is being repeated or is
+	 * out of order.
+	 */
+
+	if (sec == mdoc->lastnamed)
+		mandoc_vmsg(MANDOCERR_SEC_REP, mdoc->parse,
+		    mdoc->last->line, mdoc->last->pos,
+		    "Sh %s", secnames[sec]);
+
+	if (sec < mdoc->lastnamed)
+		mandoc_vmsg(MANDOCERR_SEC_ORDER, mdoc->parse,
+		    mdoc->last->line, mdoc->last->pos,
+		    "Sh %s", secnames[sec]);
+
+	/* Mark the last named section. */
+
+	mdoc->lastnamed = sec;
+
+	/* Check particular section/manual conventions. */
+
+	if (mdoc->meta.msec == NULL)
+		return;
+
+	goodsec = NULL;
+	switch (sec) {
+	case SEC_ERRORS:
+		if (*mdoc->meta.msec == '4')
+			break;
+		goodsec = "2, 3, 4, 9";
+		/* FALLTHROUGH */
+	case SEC_RETURN_VALUES:
+	case SEC_LIBRARY:
+		if (*mdoc->meta.msec == '2')
+			break;
+		if (*mdoc->meta.msec == '3')
+			break;
+		if (NULL == goodsec)
+			goodsec = "2, 3, 9";
+		/* FALLTHROUGH */
+	case SEC_CONTEXT:
+		if (*mdoc->meta.msec == '9')
+			break;
+		if (NULL == goodsec)
+			goodsec = "9";
+		mandoc_vmsg(MANDOCERR_SEC_MSEC, mdoc->parse,
+		    mdoc->last->line, mdoc->last->pos,
+		    "Sh %s for %s only", secnames[sec], goodsec);
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+post_xr(POST_ARGS)
+{
+	struct roff_node *n, *nch;
+
+	n = mdoc->last;
+	nch = n->child;
+	if (nch->next == NULL) {
+		mandoc_vmsg(MANDOCERR_XR_NOSEC, mdoc->parse,
+		    n->line, n->pos, "Xr %s", nch->string);
+	} else {
+		assert(nch->next == n->last);
+		if(mandoc_xr_add(nch->next->string, nch->string,
+		    nch->line, nch->pos))
+			mandoc_vmsg(MANDOCERR_XR_SELF, mdoc->parse,
+			    nch->line, nch->pos, "Xr %s %s",
+			    nch->string, nch->next->string);
+	}
+	post_delim_nb(mdoc);
+}
+
+static void
+post_ignpar(POST_ARGS)
+{
+	struct roff_node *np;
+
+	switch (mdoc->last->type) {
+	case ROFFT_BLOCK:
+		post_prevpar(mdoc);
+		return;
+	case ROFFT_HEAD:
+		post_delim(mdoc);
+		post_hyph(mdoc);
+		return;
+	case ROFFT_BODY:
+		break;
+	default:
+		return;
+	}
+
+	if ((np = mdoc->last->child) != NULL)
+		if (np->tok == MDOC_Pp || np->tok == MDOC_Lp) {
+			mandoc_vmsg(MANDOCERR_PAR_SKIP,
+			    mdoc->parse, np->line, np->pos,
+			    "%s after %s", roff_name[np->tok],
+			    roff_name[mdoc->last->tok]);
+			roff_node_delete(mdoc, np);
+		}
+
+	if ((np = mdoc->last->last) != NULL)
+		if (np->tok == MDOC_Pp || np->tok == MDOC_Lp) {
+			mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
+			    np->line, np->pos, "%s at the end of %s",
+			    roff_name[np->tok],
+			    roff_name[mdoc->last->tok]);
+			roff_node_delete(mdoc, np);
+		}
+}
+
+static void
+post_prevpar(POST_ARGS)
+{
+	struct roff_node *n;
+
+	n = mdoc->last;
+	if (NULL == n->prev)
+		return;
+	if (n->type != ROFFT_ELEM && n->type != ROFFT_BLOCK)
+		return;
+
+	/*
+	 * Don't allow prior `Lp' or `Pp' prior to a paragraph-type
+	 * block:  `Lp', `Pp', or non-compact `Bd' or `Bl'.
+	 */
+
+	if (n->prev->tok != MDOC_Pp &&
+	    n->prev->tok != MDOC_Lp &&
+	    n->prev->tok != ROFF_br)
+		return;
+	if (n->tok == MDOC_Bl && n->norm->Bl.comp)
+		return;
+	if (n->tok == MDOC_Bd && n->norm->Bd.comp)
+		return;
+	if (n->tok == MDOC_It && n->parent->norm->Bl.comp)
+		return;
+
+	mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
+	    n->prev->line, n->prev->pos, "%s before %s",
+	    roff_name[n->prev->tok], roff_name[n->tok]);
+	roff_node_delete(mdoc, n->prev);
+}
+
+static void
+post_par(POST_ARGS)
+{
+	struct roff_node *np;
+
+	np = mdoc->last;
+	if (np->tok != ROFF_br && np->tok != ROFF_sp)
+		post_prevpar(mdoc);
+
+	if (np->tok == ROFF_sp) {
+		if (np->child != NULL && np->child->next != NULL)
+			mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
+			    np->child->next->line, np->child->next->pos,
+			    "sp ... %s", np->child->next->string);
+	} else if (np->child != NULL)
+		mandoc_vmsg(MANDOCERR_ARG_SKIP,
+		    mdoc->parse, np->line, np->pos, "%s %s",
+		    roff_name[np->tok], np->child->string);
+
+	if ((np = mdoc->last->prev) == NULL) {
+		np = mdoc->last->parent;
+		if (np->tok != MDOC_Sh && np->tok != MDOC_Ss)
+			return;
+	} else if (np->tok != MDOC_Pp && np->tok != MDOC_Lp &&
+	    (mdoc->last->tok != ROFF_br ||
+	     (np->tok != ROFF_sp && np->tok != ROFF_br)))
+		return;
+
+	mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
+	    mdoc->last->line, mdoc->last->pos, "%s after %s",
+	    roff_name[mdoc->last->tok], roff_name[np->tok]);
+	roff_node_delete(mdoc, mdoc->last);
+}
+
+static void
+post_dd(POST_ARGS)
+{
+	struct roff_node *n;
+	char		 *datestr;
+
+	n = mdoc->last;
+	n->flags |= NODE_NOPRT;
+
+	if (mdoc->meta.date != NULL) {
+		mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
+		    n->line, n->pos, "Dd");
+		free(mdoc->meta.date);
+	} else if (mdoc->flags & MDOC_PBODY)
+		mandoc_msg(MANDOCERR_PROLOG_LATE, mdoc->parse,
+		    n->line, n->pos, "Dd");
+	else if (mdoc->meta.title != NULL)
+		mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
+		    n->line, n->pos, "Dd after Dt");
+	else if (mdoc->meta.os != NULL)
+		mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
+		    n->line, n->pos, "Dd after Os");
+
+	if (n->child == NULL || n->child->string[0] == '\0') {
+		mdoc->meta.date = mdoc->quick ? mandoc_strdup("") :
+		    mandoc_normdate(mdoc, NULL, n->line, n->pos);
+		return;
+	}
+
+	datestr = NULL;
+	deroff(&datestr, n);
+	if (mdoc->quick)
+		mdoc->meta.date = datestr;
+	else {
+		mdoc->meta.date = mandoc_normdate(mdoc,
+		    datestr, n->line, n->pos);
+		free(datestr);
+	}
+}
+
+static void
+post_dt(POST_ARGS)
+{
+	struct roff_node *nn, *n;
+	const char	 *cp;
+	char		 *p;
+
+	n = mdoc->last;
+	n->flags |= NODE_NOPRT;
+
+	if (mdoc->flags & MDOC_PBODY) {
+		mandoc_msg(MANDOCERR_DT_LATE, mdoc->parse,
+		    n->line, n->pos, "Dt");
+		return;
+	}
+
+	if (mdoc->meta.title != NULL)
+		mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
+		    n->line, n->pos, "Dt");
+	else if (mdoc->meta.os != NULL)
+		mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
+		    n->line, n->pos, "Dt after Os");
+
+	free(mdoc->meta.title);
+	free(mdoc->meta.msec);
+	free(mdoc->meta.vol);
+	free(mdoc->meta.arch);
+
+	mdoc->meta.title = NULL;
+	mdoc->meta.msec = NULL;
+	mdoc->meta.vol = NULL;
+	mdoc->meta.arch = NULL;
+
+	/* Mandatory first argument: title. */
+
+	nn = n->child;
+	if (nn == NULL || *nn->string == '\0') {
+		mandoc_msg(MANDOCERR_DT_NOTITLE,
+		    mdoc->parse, n->line, n->pos, "Dt");
+		mdoc->meta.title = mandoc_strdup("UNTITLED");
+	} else {
+		mdoc->meta.title = mandoc_strdup(nn->string);
+
+		/* Check that all characters are uppercase. */
+
+		for (p = nn->string; *p != '\0'; p++)
+			if (islower((unsigned char)*p)) {
+				mandoc_vmsg(MANDOCERR_TITLE_CASE,
+				    mdoc->parse, nn->line,
+				    nn->pos + (p - nn->string),
+				    "Dt %s", nn->string);
+				break;
+			}
+	}
+
+	/* Mandatory second argument: section. */
+
+	if (nn != NULL)
+		nn = nn->next;
+
+	if (nn == NULL) {
+		mandoc_vmsg(MANDOCERR_MSEC_MISSING,
+		    mdoc->parse, n->line, n->pos,
+		    "Dt %s", mdoc->meta.title);
+		mdoc->meta.vol = mandoc_strdup("LOCAL");
+		return;  /* msec and arch remain NULL. */
+	}
+
+	mdoc->meta.msec = mandoc_strdup(nn->string);
+
+	/* Infer volume title from section number. */
+
+	cp = mandoc_a2msec(nn->string);
+	if (cp == NULL) {
+		mandoc_vmsg(MANDOCERR_MSEC_BAD, mdoc->parse,
+		    nn->line, nn->pos, "Dt ... %s", nn->string);
+		mdoc->meta.vol = mandoc_strdup(nn->string);
+	} else
+		mdoc->meta.vol = mandoc_strdup(cp);
+
+	/* Optional third argument: architecture. */
+
+	if ((nn = nn->next) == NULL)
+		return;
+
+	for (p = nn->string; *p != '\0'; p++)
+		*p = tolower((unsigned char)*p);
+	mdoc->meta.arch = mandoc_strdup(nn->string);
+
+	/* Ignore fourth and later arguments. */
+
+	if ((nn = nn->next) != NULL)
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
+		    nn->line, nn->pos, "Dt ... %s", nn->string);
+}
+
+static void
+post_bx(POST_ARGS)
+{
+	struct roff_node	*n, *nch;
+	const char		*macro;
+
+	post_delim_nb(mdoc);
+
+	n = mdoc->last;
+	nch = n->child;
+
+	if (nch != NULL) {
+		macro = !strcmp(nch->string, "Open") ? "Ox" :
+		    !strcmp(nch->string, "Net") ? "Nx" :
+		    !strcmp(nch->string, "Free") ? "Fx" :
+		    !strcmp(nch->string, "DragonFly") ? "Dx" : NULL;
+		if (macro != NULL)
+			mandoc_msg(MANDOCERR_BX, mdoc->parse,
+			    n->line, n->pos, macro);
+		mdoc->last = nch;
+		nch = nch->next;
+		mdoc->next = ROFF_NEXT_SIBLING;
+		roff_elem_alloc(mdoc, n->line, n->pos, MDOC_Ns);
+		mdoc->last->flags |= NODE_NOSRC;
+		mdoc->next = ROFF_NEXT_SIBLING;
+	} else
+		mdoc->next = ROFF_NEXT_CHILD;
+	roff_word_alloc(mdoc, n->line, n->pos, "BSD");
+	mdoc->last->flags |= NODE_NOSRC;
+
+	if (nch == NULL) {
+		mdoc->last = n;
+		return;
+	}
+
+	roff_elem_alloc(mdoc, n->line, n->pos, MDOC_Ns);
+	mdoc->last->flags |= NODE_NOSRC;
+	mdoc->next = ROFF_NEXT_SIBLING;
+	roff_word_alloc(mdoc, n->line, n->pos, "-");
+	mdoc->last->flags |= NODE_NOSRC;
+	roff_elem_alloc(mdoc, n->line, n->pos, MDOC_Ns);
+	mdoc->last->flags |= NODE_NOSRC;
+	mdoc->last = n;
+
+	/*
+	 * Make `Bx's second argument always start with an uppercase
+	 * letter.  Groff checks if it's an "accepted" term, but we just
+	 * uppercase blindly.
+	 */
+
+	*nch->string = (char)toupper((unsigned char)*nch->string);
+}
+
+static void
+post_os(POST_ARGS)
+{
+#ifndef OSNAME
+	struct utsname	  utsname;
+	static char	 *defbuf;
+#endif
+	struct roff_node *n;
+
+	n = mdoc->last;
+	n->flags |= NODE_NOPRT;
+
+	if (mdoc->meta.os != NULL)
+		mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
+		    n->line, n->pos, "Os");
+	else if (mdoc->flags & MDOC_PBODY)
+		mandoc_msg(MANDOCERR_PROLOG_LATE, mdoc->parse,
+		    n->line, n->pos, "Os");
+
+	post_delim(mdoc);
+
+	/*
+	 * Set the operating system by way of the `Os' macro.
+	 * The order of precedence is:
+	 * 1. the argument of the `Os' macro, unless empty
+	 * 2. the -Ios=foo command line argument, if provided
+	 * 3. -DOSNAME="\"foo\"", if provided during compilation
+	 * 4. "sysname release" from uname(3)
+	 */
+
+	free(mdoc->meta.os);
+	mdoc->meta.os = NULL;
+	deroff(&mdoc->meta.os, n);
+	if (mdoc->meta.os)
+		goto out;
+
+	if (mdoc->os_s != NULL) {
+		mdoc->meta.os = mandoc_strdup(mdoc->os_s);
+		goto out;
+	}
+
+#ifdef OSNAME
+	mdoc->meta.os = mandoc_strdup(OSNAME);
+#else /*!OSNAME */
+	if (defbuf == NULL) {
+		if (uname(&utsname) == -1) {
+			mandoc_msg(MANDOCERR_OS_UNAME, mdoc->parse,
+			    n->line, n->pos, "Os");
+			defbuf = mandoc_strdup("UNKNOWN");
+		} else
+			mandoc_asprintf(&defbuf, "%s %s",
+			    utsname.sysname, utsname.release);
+	}
+	mdoc->meta.os = mandoc_strdup(defbuf);
+#endif /*!OSNAME*/
+
+out:
+	if (mdoc->meta.os_e == MANDOC_OS_OTHER) {
+		if (strstr(mdoc->meta.os, "OpenBSD") != NULL)
+			mdoc->meta.os_e = MANDOC_OS_OPENBSD;
+		else if (strstr(mdoc->meta.os, "NetBSD") != NULL)
+			mdoc->meta.os_e = MANDOC_OS_NETBSD;
+	}
+
+	/*
+	 * This is the earliest point where we can check
+	 * Mdocdate conventions because we don't know
+	 * the operating system earlier.
+	 */
+
+	if (n->child != NULL)
+		mandoc_vmsg(MANDOCERR_OS_ARG, mdoc->parse,
+		    n->child->line, n->child->pos,
+		    "Os %s (%s)", n->child->string,
+		    mdoc->meta.os_e == MANDOC_OS_OPENBSD ?
+		    "OpenBSD" : "NetBSD");
+
+	while (n->tok != MDOC_Dd)
+		if ((n = n->prev) == NULL)
+			return;
+	if ((n = n->child) == NULL)
+		return;
+	if (strncmp(n->string, "$" "Mdocdate", 9)) {
+		if (mdoc->meta.os_e == MANDOC_OS_OPENBSD)
+			mandoc_vmsg(MANDOCERR_MDOCDATE_MISSING,
+			    mdoc->parse, n->line, n->pos,
+			    "Dd %s (OpenBSD)", n->string);
+	} else {
+		if (mdoc->meta.os_e == MANDOC_OS_NETBSD)
+			mandoc_vmsg(MANDOCERR_MDOCDATE,
+			    mdoc->parse, n->line, n->pos,
+			    "Dd %s (NetBSD)", n->string);
+	}
+}
+
+enum roff_sec
+mdoc_a2sec(const char *p)
+{
+	int		 i;
+
+	for (i = 0; i < (int)SEC__MAX; i++)
+		if (secnames[i] && 0 == strcmp(p, secnames[i]))
+			return (enum roff_sec)i;
+
+	return SEC_CUSTOM;
+}
+
+static size_t
+macro2len(enum roff_tok macro)
+{
+
+	switch (macro) {
+	case MDOC_Ad:
+		return 12;
+	case MDOC_Ao:
+		return 12;
+	case MDOC_An:
+		return 12;
+	case MDOC_Aq:
+		return 12;
+	case MDOC_Ar:
+		return 12;
+	case MDOC_Bo:
+		return 12;
+	case MDOC_Bq:
+		return 12;
+	case MDOC_Cd:
+		return 12;
+	case MDOC_Cm:
+		return 10;
+	case MDOC_Do:
+		return 10;
+	case MDOC_Dq:
+		return 12;
+	case MDOC_Dv:
+		return 12;
+	case MDOC_Eo:
+		return 12;
+	case MDOC_Em:
+		return 10;
+	case MDOC_Er:
+		return 17;
+	case MDOC_Ev:
+		return 15;
+	case MDOC_Fa:
+		return 12;
+	case MDOC_Fl:
+		return 10;
+	case MDOC_Fo:
+		return 16;
+	case MDOC_Fn:
+		return 16;
+	case MDOC_Ic:
+		return 10;
+	case MDOC_Li:
+		return 16;
+	case MDOC_Ms:
+		return 6;
+	case MDOC_Nm:
+		return 10;
+	case MDOC_No:
+		return 12;
+	case MDOC_Oo:
+		return 10;
+	case MDOC_Op:
+		return 14;
+	case MDOC_Pa:
+		return 32;
+	case MDOC_Pf:
+		return 12;
+	case MDOC_Po:
+		return 12;
+	case MDOC_Pq:
+		return 12;
+	case MDOC_Ql:
+		return 16;
+	case MDOC_Qo:
+		return 12;
+	case MDOC_So:
+		return 12;
+	case MDOC_Sq:
+		return 12;
+	case MDOC_Sy:
+		return 6;
+	case MDOC_Sx:
+		return 16;
+	case MDOC_Tn:
+		return 10;
+	case MDOC_Va:
+		return 12;
+	case MDOC_Vt:
+		return 12;
+	case MDOC_Xr:
+		return 10;
+	default:
+		break;
+	};
+	return 0;
+}

Added: vendor/mandoc/dist/msec.c
===================================================================
--- vendor/mandoc/dist/msec.c	                        (rev 0)
+++ vendor/mandoc/dist/msec.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,36 @@
+/*	$Id: msec.c,v 1.15 2015/10/06 18:32:19 schwarze Exp $ */
+/*
+ * Copyright (c) 2009 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <string.h>
+
+#include "mandoc.h"
+#include "libmandoc.h"
+
+#define LINE(x, y) \
+	if (0 == strcmp(p, x)) return(y);
+
+const char *
+mandoc_a2msec(const char *p)
+{
+
+#include "msec.in"
+
+	return NULL;
+}

Added: vendor/mandoc/dist/msec.in
===================================================================
--- vendor/mandoc/dist/msec.in	                        (rev 0)
+++ vendor/mandoc/dist/msec.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+/*	$Id: msec.in,v 1.8 2017/06/24 17:37:06 schwarze Exp $ */
+/*
+ * Copyright (c) 2009 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * These are all possible manual-section macros and what they correspond
+ * to when rendered as the volume title.
+ *
+ * Be sure to escape strings.
+ */
+
+LINE("1",		"General Commands Manual")
+LINE("2",		"System Calls Manual")
+LINE("3",		"Library Functions Manual")
+LINE("3p",		"Perl Library Manual")
+LINE("4",		"Device Drivers Manual")
+LINE("5",		"File Formats Manual")
+LINE("6",		"Games Manual")
+LINE("7",		"Miscellaneous Information Manual")
+LINE("8",		"System Manager\'s Manual")
+LINE("9",		"Kernel Developer\'s Manual")

Added: vendor/mandoc/dist/out.c
===================================================================
--- vendor/mandoc/dist/out.c	                        (rev 0)
+++ vendor/mandoc/dist/out.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,369 @@
+/*	$Id: out.c,v 1.70 2017/06/27 18:25:02 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "out.h"
+
+static	void	tblcalc_data(struct rofftbl *, struct roffcol *,
+			const struct tbl_opts *, const struct tbl_dat *,
+			size_t);
+static	void	tblcalc_literal(struct rofftbl *, struct roffcol *,
+			const struct tbl_dat *, size_t);
+static	void	tblcalc_number(struct rofftbl *, struct roffcol *,
+			const struct tbl_opts *, const struct tbl_dat *);
+
+
+/*
+ * Parse the *src string and store a scaling unit into *dst.
+ * If the string doesn't specify the unit, use the default.
+ * If no default is specified, fail.
+ * Return a pointer to the byte after the last byte used,
+ * or NULL on total failure.
+ */
+const char *
+a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
+{
+	char		*endptr;
+
+	dst->unit = def == SCALE_MAX ? SCALE_BU : def;
+	dst->scale = strtod(src, &endptr);
+	if (endptr == src)
+		return NULL;
+
+	switch (*endptr++) {
+	case 'c':
+		dst->unit = SCALE_CM;
+		break;
+	case 'i':
+		dst->unit = SCALE_IN;
+		break;
+	case 'f':
+		dst->unit = SCALE_FS;
+		break;
+	case 'M':
+		dst->unit = SCALE_MM;
+		break;
+	case 'm':
+		dst->unit = SCALE_EM;
+		break;
+	case 'n':
+		dst->unit = SCALE_EN;
+		break;
+	case 'P':
+		dst->unit = SCALE_PC;
+		break;
+	case 'p':
+		dst->unit = SCALE_PT;
+		break;
+	case 'u':
+		dst->unit = SCALE_BU;
+		break;
+	case 'v':
+		dst->unit = SCALE_VS;
+		break;
+	default:
+		endptr--;
+		if (SCALE_MAX == def)
+			return NULL;
+		dst->unit = def;
+		break;
+	}
+	return endptr;
+}
+
+/*
+ * Calculate the abstract widths and decimal positions of columns in a
+ * table.  This routine allocates the columns structures then runs over
+ * all rows and cells in the table.  The function pointers in "tbl" are
+ * used for the actual width calculations.
+ */
+void
+tblcalc(struct rofftbl *tbl, const struct tbl_span *sp,
+    size_t offset, size_t rmargin)
+{
+	struct roffsu		 su;
+	const struct tbl_opts	*opts;
+	const struct tbl_dat	*dp;
+	struct roffcol		*col;
+	size_t			 ewidth, xwidth;
+	int			 spans;
+	int			 icol, maxcol, necol, nxcol, quirkcol;
+
+	/*
+	 * Allocate the master column specifiers.  These will hold the
+	 * widths and decimal positions for all cells in the column.  It
+	 * must be freed and nullified by the caller.
+	 */
+
+	assert(NULL == tbl->cols);
+	tbl->cols = mandoc_calloc((size_t)sp->opts->cols,
+	    sizeof(struct roffcol));
+	opts = sp->opts;
+
+	for (maxcol = -1; sp; sp = sp->next) {
+		if (TBL_SPAN_DATA != sp->pos)
+			continue;
+		spans = 1;
+		/*
+		 * Account for the data cells in the layout, matching it
+		 * to data cells in the data section.
+		 */
+		for (dp = sp->first; dp; dp = dp->next) {
+			/* Do not used spanned cells in the calculation. */
+			if (0 < --spans)
+				continue;
+			spans = dp->spans;
+			if (1 < spans)
+				continue;
+			icol = dp->layout->col;
+			while (maxcol < icol)
+				tbl->cols[++maxcol].spacing = SIZE_MAX;
+			col = tbl->cols + icol;
+			col->flags |= dp->layout->flags;
+			if (dp->layout->flags & TBL_CELL_WIGN)
+				continue;
+			if (dp->layout->wstr != NULL &&
+			    dp->layout->width == 0 &&
+			    a2roffsu(dp->layout->wstr, &su, SCALE_EN)
+			    != NULL)
+				dp->layout->width =
+				    (*tbl->sulen)(&su, tbl->arg);
+			if (col->width < dp->layout->width)
+				col->width = dp->layout->width;
+			if (dp->layout->spacing != SIZE_MAX &&
+			    (col->spacing == SIZE_MAX ||
+			     col->spacing < dp->layout->spacing))
+				col->spacing = dp->layout->spacing;
+			tblcalc_data(tbl, col, opts, dp,
+			    dp->block == 0 ? 0 :
+			    dp->layout->width ? dp->layout->width :
+			    rmargin ? (rmargin + sp->opts->cols / 2)
+			    / (sp->opts->cols + 1) : 0);
+		}
+	}
+
+	/*
+	 * Count columns to equalize and columns to maximize.
+	 * Find maximum width of the columns to equalize.
+	 * Find total width of the columns *not* to maximize.
+	 */
+
+	necol = nxcol = 0;
+	ewidth = xwidth = 0;
+	for (icol = 0; icol <= maxcol; icol++) {
+		col = tbl->cols + icol;
+		if (col->spacing == SIZE_MAX || icol == maxcol)
+			col->spacing = 3;
+		if (col->flags & TBL_CELL_EQUAL) {
+			necol++;
+			if (ewidth < col->width)
+				ewidth = col->width;
+		}
+		if (col->flags & TBL_CELL_WMAX)
+			nxcol++;
+		else
+			xwidth += col->width;
+	}
+
+	/*
+	 * Equalize columns, if requested for any of them.
+	 * Update total width of the columns not to maximize.
+	 */
+
+	if (necol) {
+		for (icol = 0; icol <= maxcol; icol++) {
+			col = tbl->cols + icol;
+			if ( ! (col->flags & TBL_CELL_EQUAL))
+				continue;
+			if (col->width == ewidth)
+				continue;
+			if (nxcol && rmargin)
+				xwidth += ewidth - col->width;
+			col->width = ewidth;
+		}
+	}
+
+	/*
+	 * If there are any columns to maximize, find the total
+	 * available width, deducting 3n margins between columns.
+	 * Distribute the available width evenly.
+	 */
+
+	if (nxcol && rmargin) {
+		xwidth += 3*maxcol +
+		    (opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ?
+		     2 : !!opts->lvert + !!opts->rvert);
+		if (rmargin <= offset + xwidth)
+			return;
+		xwidth = rmargin - offset - xwidth;
+
+		/*
+		 * Emulate a bug in GNU tbl width calculation that
+		 * manifests itself for large numbers of x-columns.
+		 * Emulating it for 5 x-columns gives identical
+		 * behaviour for up to 6 x-columns.
+		 */
+
+		if (nxcol == 5) {
+			quirkcol = xwidth % nxcol + 2;
+			if (quirkcol != 3 && quirkcol != 4)
+				quirkcol = -1;
+		} else
+			quirkcol = -1;
+
+		necol = 0;
+		ewidth = 0;
+		for (icol = 0; icol <= maxcol; icol++) {
+			col = tbl->cols + icol;
+			if ( ! (col->flags & TBL_CELL_WMAX))
+				continue;
+			col->width = (double)xwidth * ++necol / nxcol
+			    - ewidth + 0.4995;
+			if (necol == quirkcol)
+				col->width--;
+			ewidth += col->width;
+		}
+	}
+}
+
+static void
+tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
+    const struct tbl_opts *opts, const struct tbl_dat *dp, size_t mw)
+{
+	size_t		 sz;
+
+	/* Branch down into data sub-types. */
+
+	switch (dp->layout->pos) {
+	case TBL_CELL_HORIZ:
+	case TBL_CELL_DHORIZ:
+		sz = (*tbl->len)(1, tbl->arg);
+		if (col->width < sz)
+			col->width = sz;
+		break;
+	case TBL_CELL_LONG:
+	case TBL_CELL_CENTRE:
+	case TBL_CELL_LEFT:
+	case TBL_CELL_RIGHT:
+		tblcalc_literal(tbl, col, dp, mw);
+		break;
+	case TBL_CELL_NUMBER:
+		tblcalc_number(tbl, col, opts, dp);
+		break;
+	case TBL_CELL_DOWN:
+		break;
+	default:
+		abort();
+	}
+}
+
+static void
+tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
+    const struct tbl_dat *dp, size_t mw)
+{
+	const char	*str;	/* Beginning of the first line. */
+	const char	*beg;	/* Beginning of the current line. */
+	char		*end;	/* End of the current line. */
+	size_t		 lsz;	/* Length of the current line. */
+	size_t		 wsz;	/* Length of the current word. */
+
+	if (dp->string == NULL || *dp->string == '\0')
+		return;
+	str = mw ? mandoc_strdup(dp->string) : dp->string;
+	lsz = 0;
+	for (beg = str; beg != NULL && *beg != '\0'; beg = end) {
+		end = mw ? strchr(beg, ' ') : NULL;
+		if (end != NULL) {
+			*end++ = '\0';
+			while (*end == ' ')
+				end++;
+		}
+		wsz = (*tbl->slen)(beg, tbl->arg);
+		if (mw && lsz && lsz + 1 + wsz <= mw)
+			lsz += 1 + wsz;
+		else
+			lsz = wsz;
+		if (col->width < lsz)
+			col->width = lsz;
+	}
+	if (mw)
+		free((void *)str);
+}
+
+static void
+tblcalc_number(struct rofftbl *tbl, struct roffcol *col,
+		const struct tbl_opts *opts, const struct tbl_dat *dp)
+{
+	int		 i;
+	size_t		 sz, psz, ssz, d;
+	const char	*str;
+	char		*cp;
+	char		 buf[2];
+
+	/*
+	 * First calculate number width and decimal place (last + 1 for
+	 * non-decimal numbers).  If the stored decimal is subsequent to
+	 * ours, make our size longer by that difference
+	 * (right-"shifting"); similarly, if ours is subsequent the
+	 * stored, then extend the stored size by the difference.
+	 * Finally, re-assign the stored values.
+	 */
+
+	str = dp->string ? dp->string : "";
+	sz = (*tbl->slen)(str, tbl->arg);
+
+	/* FIXME: TBL_DATA_HORIZ et al.? */
+
+	buf[0] = opts->decimal;
+	buf[1] = '\0';
+
+	psz = (*tbl->slen)(buf, tbl->arg);
+
+	if (NULL != (cp = strrchr(str, opts->decimal))) {
+		buf[1] = '\0';
+		for (ssz = 0, i = 0; cp != &str[i]; i++) {
+			buf[0] = str[i];
+			ssz += (*tbl->slen)(buf, tbl->arg);
+		}
+		d = ssz + psz;
+	} else
+		d = sz + psz;
+
+	/* Adjust the settings for this column. */
+
+	if (col->decimal > d) {
+		sz += col->decimal - d;
+		d = col->decimal;
+	} else
+		col->width += d - col->decimal;
+
+	if (sz > col->width)
+		col->width = sz;
+	if (d > col->decimal)
+		col->decimal = d;
+}

Added: vendor/mandoc/dist/out.h
===================================================================
--- vendor/mandoc/dist/out.h	                        (rev 0)
+++ vendor/mandoc/dist/out.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,72 @@
+/*	$Id: out.h,v 1.31 2017/06/27 18:25:02 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+enum	roffscale {
+	SCALE_CM, /* centimeters (c) */
+	SCALE_IN, /* inches (i) */
+	SCALE_PC, /* pica (P) */
+	SCALE_PT, /* points (p) */
+	SCALE_EM, /* ems (m) */
+	SCALE_MM, /* mini-ems (M) */
+	SCALE_EN, /* ens (n) */
+	SCALE_BU, /* default horizontal (u) */
+	SCALE_VS, /* default vertical (v) */
+	SCALE_FS, /* syn. for u (f) */
+	SCALE_MAX
+};
+
+struct	roffcol {
+	size_t		 width; /* width of cell */
+	size_t		 decimal; /* decimal position in cell */
+	size_t		 spacing; /* spacing after the column */
+	int		 flags; /* layout flags, see tbl_cell */
+};
+
+struct	roffsu {
+	enum roffscale	  unit;
+	double		  scale;
+};
+
+typedef	size_t	(*tbl_sulen)(const struct roffsu *, void *);
+typedef	size_t	(*tbl_strlen)(const char *, void *);
+typedef	size_t	(*tbl_len)(size_t, void *);
+
+struct	rofftbl {
+	tbl_sulen	 sulen; /* calculate scaling unit length */
+	tbl_strlen	 slen; /* calculate string length */
+	tbl_len		 len; /* produce width of empty space */
+	struct roffcol	*cols; /* master column specifiers */
+	void		*arg; /* passed to sulen, slen, and len */
+};
+
+#define	SCALE_VS_INIT(p, v) \
+	do { (p)->unit = SCALE_VS; \
+	     (p)->scale = (v); } \
+	while (/* CONSTCOND */ 0)
+
+#define	SCALE_HS_INIT(p, v) \
+	do { (p)->unit = SCALE_EN; \
+	     (p)->scale = (v); } \
+	while (/* CONSTCOND */ 0)
+
+
+struct	tbl_span;
+
+const char	 *a2roffsu(const char *, struct roffsu *, enum roffscale);
+void		  tblcalc(struct rofftbl *tbl,
+			const struct tbl_span *, size_t, size_t);

Added: vendor/mandoc/dist/preconv.c
===================================================================
--- vendor/mandoc/dist/preconv.c	                        (rev 0)
+++ vendor/mandoc/dist/preconv.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,176 @@
+/*	$Id: preconv.c,v 1.16 2017/02/18 13:43:52 schwarze Exp $ */
+/*
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include "mandoc.h"
+#include "libmandoc.h"
+
+int
+preconv_encode(const struct buf *ib, size_t *ii, struct buf *ob, size_t *oi,
+    int *filenc)
+{
+	const unsigned char	*cu;
+	int			 nby;
+	unsigned int		 accum;
+
+	cu = (const unsigned char *)ib->buf + *ii;
+	assert(*cu & 0x80);
+
+	if ( ! (*filenc & MPARSE_UTF8))
+		goto latin;
+
+	nby = 1;
+	while (nby < 5 && *cu & (1 << (7 - nby)))
+		nby++;
+
+	switch (nby) {
+	case 2:
+		accum = *cu & 0x1f;
+		if (accum < 0x02)  /* Obfuscated ASCII. */
+			goto latin;
+		break;
+	case 3:
+		accum = *cu & 0x0f;
+		break;
+	case 4:
+		accum = *cu & 0x07;
+		if (accum > 0x04) /* Beyond Unicode. */
+			goto latin;
+		break;
+	default:  /* Bad sequence header. */
+		goto latin;
+	}
+
+	cu++;
+	switch (nby) {
+	case 3:
+		if ((accum == 0x00 && ! (*cu & 0x20)) ||  /* Use 2-byte. */
+		    (accum == 0x0d && *cu & 0x20))  /* Surrogates. */
+			goto latin;
+		break;
+	case 4:
+		if ((accum == 0x00 && ! (*cu & 0x30)) ||  /* Use 3-byte. */
+		    (accum == 0x04 && *cu & 0x30))  /* Beyond Unicode. */
+			goto latin;
+		break;
+	default:
+		break;
+	}
+
+	while (--nby) {
+		if ((*cu & 0xc0) != 0x80)  /* Invalid continuation. */
+			goto latin;
+		accum <<= 6;
+		accum += *cu & 0x3f;
+		cu++;
+	}
+
+	assert(accum > 0x7f);
+	assert(accum < 0x110000);
+	assert(accum < 0xd800 || accum > 0xdfff);
+
+	*oi += snprintf(ob->buf + *oi, 11, "\\[u%.4X]", accum);
+	*ii = (const char *)cu - ib->buf;
+	*filenc &= ~MPARSE_LATIN1;
+	return 1;
+
+latin:
+	if ( ! (*filenc & MPARSE_LATIN1))
+		return 0;
+
+	*oi += snprintf(ob->buf + *oi, 11,
+	    "\\[u%.4X]", (unsigned char)ib->buf[(*ii)++]);
+
+	*filenc &= ~MPARSE_UTF8;
+	return 1;
+}
+
+int
+preconv_cue(const struct buf *b, size_t offset)
+{
+	const char	*ln, *eoln, *eoph;
+	size_t		 sz, phsz;
+
+	ln = b->buf + offset;
+	sz = b->sz - offset;
+
+	/* Look for the end-of-line. */
+
+	if (NULL == (eoln = memchr(ln, '\n', sz)))
+		eoln = ln + sz;
+
+	/* Check if we have the correct header/trailer. */
+
+	if ((sz = (size_t)(eoln - ln)) < 10 ||
+	    memcmp(ln, ".\\\" -*-", 7) || memcmp(eoln - 3, "-*-", 3))
+		return MPARSE_UTF8 | MPARSE_LATIN1;
+
+	/* Move after the header and adjust for the trailer. */
+
+	ln += 7;
+	sz -= 10;
+
+	while (sz > 0) {
+		while (sz > 0 && ' ' == *ln) {
+			ln++;
+			sz--;
+		}
+		if (0 == sz)
+			break;
+
+		/* Find the end-of-phrase marker (or eoln). */
+
+		if (NULL == (eoph = memchr(ln, ';', sz)))
+			eoph = eoln - 3;
+		else
+			eoph++;
+
+		/* Only account for the "coding" phrase. */
+
+		if ((phsz = eoph - ln) < 7 ||
+		    strncasecmp(ln, "coding:", 7)) {
+			sz -= phsz;
+			ln += phsz;
+			continue;
+		}
+
+		sz -= 7;
+		ln += 7;
+
+		while (sz > 0 && ' ' == *ln) {
+			ln++;
+			sz--;
+		}
+		if (0 == sz)
+			return 0;
+
+		/* Check us against known encodings. */
+
+		if (phsz > 4 && !strncasecmp(ln, "utf-8", 5))
+			return MPARSE_UTF8;
+		if (phsz > 10 && !strncasecmp(ln, "iso-latin-1", 11))
+			return MPARSE_LATIN1;
+		return 0;
+	}
+	return MPARSE_UTF8 | MPARSE_LATIN1;
+}

Added: vendor/mandoc/dist/predefs.in
===================================================================
--- vendor/mandoc/dist/predefs.in	                        (rev 0)
+++ vendor/mandoc/dist/predefs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,65 @@
+/*	$Id: predefs.in,v 1.4 2012/07/18 10:39:19 schwarze Exp $ */
+/*
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * The predefined-string translation tables.  Each corresponds to a
+ * predefined strings from (e.g.) tmac/mdoc/doc-nroff.  The left-hand
+ * side corresponds to the input sequence (\*x, \*(xx and so on).  The
+ * right-hand side is what's produced by libroff.
+ *
+ * XXX - C-escape strings!
+ * XXX - update PREDEF_MAX in roff.c if adding more!
+ */
+
+PREDEF("Am", "&")
+PREDEF("Ba", "\\fR|\\fP")
+PREDEF("Ge", "\\(>=")
+PREDEF("Gt", ">")
+PREDEF("If", "infinity")
+PREDEF("Le", "\\(<=")
+PREDEF("Lq", "\\(lq")
+PREDEF("Lt", "<")
+PREDEF("Na", "NaN")
+PREDEF("Ne", "\\(!=")
+PREDEF("Pi", "pi")
+PREDEF("Pm", "\\(+-")
+PREDEF("Rq", "\\(rq")
+PREDEF("left-bracket", "[")
+PREDEF("left-parenthesis", "(")
+PREDEF("lp", "(")
+PREDEF("left-singlequote", "\\(oq")
+PREDEF("q", "\\(dq")
+PREDEF("quote-left", "\\(oq")
+PREDEF("quote-right", "\\(cq")
+PREDEF("R", "\\(rg")
+PREDEF("right-bracket", "]")
+PREDEF("right-parenthesis", ")")
+PREDEF("rp", ")")
+PREDEF("right-singlequote", "\\(cq")
+PREDEF("Tm", "(Tm)")
+PREDEF("Px", "POSIX")
+PREDEF("Ai", "ANSI")
+PREDEF("\'", "\\\'")
+PREDEF("aa", "\\(aa")
+PREDEF("ga", "\\(ga")
+PREDEF("`",  "\\`")
+PREDEF("lq", "\\(lq")
+PREDEF("rq", "\\(rq")
+PREDEF("ua", "\\(ua")
+PREDEF("va", "\\(va")
+PREDEF("<=", "\\(<=")
+PREDEF(">=", "\\(>=")

Added: vendor/mandoc/dist/read.c
===================================================================
--- vendor/mandoc/dist/read.c	                        (rev 0)
+++ vendor/mandoc/dist/read.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,901 @@
+/*	$Id: read.c,v 1.192 2017/07/20 14:36:36 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010-2017 Ingo Schwarze <schwarze at openbsd.org>
+ * Copyright (c) 2010, 2012 Joerg Sonnenberger <joerg at netbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <zlib.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "libmandoc.h"
+
+#define	REPARSE_LIMIT	1000
+
+struct	mparse {
+	struct roff	 *roff; /* roff parser (!NULL) */
+	struct roff_man	 *man; /* man parser */
+	char		 *sodest; /* filename pointed to by .so */
+	const char	 *file; /* filename of current input file */
+	struct buf	 *primary; /* buffer currently being parsed */
+	struct buf	 *secondary; /* preprocessed copy of input */
+	const char	 *os_s; /* default operating system */
+	mandocmsg	  mmsg; /* warning/error message handler */
+	enum mandoclevel  file_status; /* status of current parse */
+	enum mandocerr	  mmin; /* ignore messages below this */
+	int		  options; /* parser options */
+	int		  gzip; /* current input file is gzipped */
+	int		  filenc; /* encoding of the current file */
+	int		  reparse_count; /* finite interp. stack */
+	int		  line; /* line number in the file */
+};
+
+static	void	  choose_parser(struct mparse *);
+static	void	  resize_buf(struct buf *, size_t);
+static	int	  mparse_buf_r(struct mparse *, struct buf, size_t, int);
+static	int	  read_whole_file(struct mparse *, const char *, int,
+				struct buf *, int *);
+static	void	  mparse_end(struct mparse *);
+static	void	  mparse_parse_buffer(struct mparse *, struct buf,
+			const char *);
+
+static	const enum mandocerr	mandoclimits[MANDOCLEVEL_MAX] = {
+	MANDOCERR_OK,
+	MANDOCERR_OK,
+	MANDOCERR_WARNING,
+	MANDOCERR_ERROR,
+	MANDOCERR_UNSUPP,
+	MANDOCERR_MAX,
+	MANDOCERR_MAX
+};
+
+static	const char * const	mandocerrs[MANDOCERR_MAX] = {
+	"ok",
+
+	"base system convention",
+
+	"Mdocdate found",
+	"Mdocdate missing",
+	"unknown architecture",
+	"operating system explicitly specified",
+	"RCS id missing",
+	"referenced manual not found",
+
+	"generic style suggestion",
+
+	"legacy man(7) date format",
+	"lower case character in document title",
+	"duplicate RCS id",
+	"typo in section name",
+	"unterminated quoted argument",
+	"useless macro",
+	"consider using OS macro",
+	"errnos out of order",
+	"duplicate errno",
+	"trailing delimiter",
+	"no blank before trailing delimiter",
+	"fill mode already enabled, skipping",
+	"fill mode already disabled, skipping",
+	"function name without markup",
+	"whitespace at end of input line",
+	"bad comment style",
+
+	"generic warning",
+
+	/* related to the prologue */
+	"missing manual title, using UNTITLED",
+	"missing manual title, using \"\"",
+	"missing manual section, using \"\"",
+	"unknown manual section",
+	"missing date, using today's date",
+	"cannot parse date, using it verbatim",
+	"date in the future, using it anyway",
+	"missing Os macro, using \"\"",
+	"late prologue macro",
+	"prologue macros out of order",
+
+	/* related to document structure */
+	".so is fragile, better use ln(1)",
+	"no document body",
+	"content before first section header",
+	"first section is not \"NAME\"",
+	"NAME section without Nm before Nd",
+	"NAME section without description",
+	"description not at the end of NAME",
+	"bad NAME section content",
+	"missing comma before name",
+	"missing description line, using \"\"",
+	"description line outside NAME section",
+	"sections out of conventional order",
+	"duplicate section title",
+	"unexpected section",
+	"cross reference to self",
+	"unusual Xr order",
+	"unusual Xr punctuation",
+	"AUTHORS section without An macro",
+
+	/* related to macros and nesting */
+	"obsolete macro",
+	"macro neither callable nor escaped",
+	"skipping paragraph macro",
+	"moving paragraph macro out of list",
+	"skipping no-space macro",
+	"blocks badly nested",
+	"nested displays are not portable",
+	"moving content out of list",
+	"first macro on line",
+	"line scope broken",
+	"skipping blank line in line scope",
+
+	/* related to missing macro arguments */
+	"skipping empty request",
+	"conditional request controls empty scope",
+	"skipping empty macro",
+	"empty block",
+	"empty argument, using 0n",
+	"missing display type, using -ragged",
+	"list type is not the first argument",
+	"missing -width in -tag list, using 6n",
+	"missing utility name, using \"\"",
+	"missing function name, using \"\"",
+	"empty head in list item",
+	"empty list item",
+	"missing argument, using next line",
+	"missing font type, using \\fR",
+	"unknown font type, using \\fR",
+	"nothing follows prefix",
+	"empty reference block",
+	"missing section argument",
+	"missing -std argument, adding it",
+	"missing option string, using \"\"",
+	"missing resource identifier, using \"\"",
+	"missing eqn box, using \"\"",
+
+	/* related to bad macro arguments */
+	"duplicate argument",
+	"skipping duplicate argument",
+	"skipping duplicate display type",
+	"skipping duplicate list type",
+	"skipping -width argument",
+	"wrong number of cells",
+	"unknown AT&T UNIX version",
+	"comma in function argument",
+	"parenthesis in function name",
+	"unknown library name",
+	"invalid content in Rs block",
+	"invalid Boolean argument",
+	"unknown font, skipping request",
+	"odd number of characters in request",
+
+	/* related to plain text */
+	"blank line in fill mode, using .sp",
+	"tab in filled text",
+	"new sentence, new line",
+	"invalid escape sequence",
+	"undefined string, using \"\"",
+
+	/* related to tables */
+	"tbl line starts with span",
+	"tbl column starts with span",
+	"skipping vertical bar in tbl layout",
+
+	"generic error",
+
+	/* related to tables */
+	"non-alphabetic character in tbl options",
+	"skipping unknown tbl option",
+	"missing tbl option argument",
+	"wrong tbl option argument size",
+	"empty tbl layout",
+	"invalid character in tbl layout",
+	"unmatched parenthesis in tbl layout",
+	"tbl without any data cells",
+	"ignoring data in spanned tbl cell",
+	"ignoring extra tbl data cells",
+	"data block open at end of tbl",
+
+	/* related to document structure and macros */
+	NULL,
+	"duplicate prologue macro",
+	"skipping late title macro",
+	"input stack limit exceeded, infinite loop?",
+	"skipping bad character",
+	"skipping unknown macro",
+	"skipping insecure request",
+	"skipping item outside list",
+	"skipping column outside column list",
+	"skipping end of block that is not open",
+	"fewer RS blocks open, skipping",
+	"inserting missing end of block",
+	"appending missing end of block",
+
+	/* related to request and macro arguments */
+	"escaped character not allowed in a name",
+	"NOT IMPLEMENTED: Bd -file",
+	"skipping display without arguments",
+	"missing list type, using -item",
+	"argument is not numeric, using 1",
+	"missing manual name, using \"\"",
+	"uname(3) system call failed, using UNKNOWN",
+	"unknown standard specifier",
+	"skipping request without numeric argument",
+	"NOT IMPLEMENTED: .so with absolute path or \"..\"",
+	".so request failed",
+	"skipping all arguments",
+	"skipping excess arguments",
+	"divide by zero",
+
+	"unsupported feature",
+	"input too large",
+	"unsupported control character",
+	"unsupported roff request",
+	"eqn delim option in tbl",
+	"unsupported tbl layout modifier",
+	"ignoring macro in table",
+};
+
+static	const char * const	mandoclevels[MANDOCLEVEL_MAX] = {
+	"SUCCESS",
+	"STYLE",
+	"WARNING",
+	"ERROR",
+	"UNSUPP",
+	"BADARG",
+	"SYSERR"
+};
+
+
+static void
+resize_buf(struct buf *buf, size_t initial)
+{
+
+	buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
+	buf->buf = mandoc_realloc(buf->buf, buf->sz);
+}
+
+static void
+choose_parser(struct mparse *curp)
+{
+	char		*cp, *ep;
+	int		 format;
+
+	/*
+	 * If neither command line arguments -mdoc or -man select
+	 * a parser nor the roff parser found a .Dd or .TH macro
+	 * yet, look ahead in the main input buffer.
+	 */
+
+	if ((format = roff_getformat(curp->roff)) == 0) {
+		cp = curp->primary->buf;
+		ep = cp + curp->primary->sz;
+		while (cp < ep) {
+			if (*cp == '.' || *cp == '\'') {
+				cp++;
+				if (cp[0] == 'D' && cp[1] == 'd') {
+					format = MPARSE_MDOC;
+					break;
+				}
+				if (cp[0] == 'T' && cp[1] == 'H') {
+					format = MPARSE_MAN;
+					break;
+				}
+			}
+			cp = memchr(cp, '\n', ep - cp);
+			if (cp == NULL)
+				break;
+			cp++;
+		}
+	}
+
+	if (format == MPARSE_MDOC) {
+		curp->man->macroset = MACROSET_MDOC;
+		if (curp->man->mdocmac == NULL)
+			curp->man->mdocmac = roffhash_alloc(MDOC_Dd, MDOC_MAX);
+	} else {
+		curp->man->macroset = MACROSET_MAN;
+		if (curp->man->manmac == NULL)
+			curp->man->manmac = roffhash_alloc(MAN_TH, MAN_MAX);
+	}
+	curp->man->first->tok = TOKEN_NONE;
+}
+
+/*
+ * Main parse routine for a buffer.
+ * It assumes encoding and line numbering are already set up.
+ * It can recurse directly (for invocations of user-defined
+ * macros, inline equations, and input line traps)
+ * and indirectly (for .so file inclusion).
+ */
+static int
+mparse_buf_r(struct mparse *curp, struct buf blk, size_t i, int start)
+{
+	struct buf	 ln;
+	const char	*save_file;
+	char		*cp;
+	size_t		 pos; /* byte number in the ln buffer */
+	enum rofferr	 rr;
+	int		 of;
+	int		 lnn; /* line number in the real file */
+	int		 fd;
+	unsigned char	 c;
+
+	memset(&ln, 0, sizeof(ln));
+
+	lnn = curp->line;
+	pos = 0;
+
+	while (i < blk.sz) {
+		if (0 == pos && '\0' == blk.buf[i])
+			break;
+
+		if (start) {
+			curp->line = lnn;
+			curp->reparse_count = 0;
+
+			if (lnn < 3 &&
+			    curp->filenc & MPARSE_UTF8 &&
+			    curp->filenc & MPARSE_LATIN1)
+				curp->filenc = preconv_cue(&blk, i);
+		}
+
+		while (i < blk.sz && (start || blk.buf[i] != '\0')) {
+
+			/*
+			 * When finding an unescaped newline character,
+			 * leave the character loop to process the line.
+			 * Skip a preceding carriage return, if any.
+			 */
+
+			if ('\r' == blk.buf[i] && i + 1 < blk.sz &&
+			    '\n' == blk.buf[i + 1])
+				++i;
+			if ('\n' == blk.buf[i]) {
+				++i;
+				++lnn;
+				break;
+			}
+
+			/*
+			 * Make sure we have space for the worst
+			 * case of 11 bytes: "\\[u10ffff]\0"
+			 */
+
+			if (pos + 11 > ln.sz)
+				resize_buf(&ln, 256);
+
+			/*
+			 * Encode 8-bit input.
+			 */
+
+			c = blk.buf[i];
+			if (c & 0x80) {
+				if ( ! (curp->filenc && preconv_encode(
+				    &blk, &i, &ln, &pos, &curp->filenc))) {
+					mandoc_vmsg(MANDOCERR_CHAR_BAD, curp,
+					    curp->line, pos, "0x%x", c);
+					ln.buf[pos++] = '?';
+					i++;
+				}
+				continue;
+			}
+
+			/*
+			 * Exclude control characters.
+			 */
+
+			if (c == 0x7f || (c < 0x20 && c != 0x09)) {
+				mandoc_vmsg(c == 0x00 || c == 0x04 ||
+				    c > 0x0a ? MANDOCERR_CHAR_BAD :
+				    MANDOCERR_CHAR_UNSUPP,
+				    curp, curp->line, pos, "0x%x", c);
+				i++;
+				if (c != '\r')
+					ln.buf[pos++] = '?';
+				continue;
+			}
+
+			ln.buf[pos++] = blk.buf[i++];
+		}
+
+		if (pos + 1 >= ln.sz)
+			resize_buf(&ln, 256);
+
+		if (i == blk.sz || blk.buf[i] == '\0')
+			ln.buf[pos++] = '\n';
+		ln.buf[pos] = '\0';
+
+		/*
+		 * A significant amount of complexity is contained by
+		 * the roff preprocessor.  It's line-oriented but can be
+		 * expressed on one line, so we need at times to
+		 * readjust our starting point and re-run it.  The roff
+		 * preprocessor can also readjust the buffers with new
+		 * data, so we pass them in wholesale.
+		 */
+
+		of = 0;
+
+		/*
+		 * Maintain a lookaside buffer of all parsed lines.  We
+		 * only do this if mparse_keep() has been invoked (the
+		 * buffer may be accessed with mparse_getkeep()).
+		 */
+
+		if (curp->secondary) {
+			curp->secondary->buf = mandoc_realloc(
+			    curp->secondary->buf,
+			    curp->secondary->sz + pos + 2);
+			memcpy(curp->secondary->buf +
+			    curp->secondary->sz,
+			    ln.buf, pos);
+			curp->secondary->sz += pos;
+			curp->secondary->buf
+				[curp->secondary->sz] = '\n';
+			curp->secondary->sz++;
+			curp->secondary->buf
+				[curp->secondary->sz] = '\0';
+		}
+rerun:
+		rr = roff_parseln(curp->roff, curp->line, &ln, &of);
+
+		switch (rr) {
+		case ROFF_REPARSE:
+			if (++curp->reparse_count > REPARSE_LIMIT)
+				mandoc_msg(MANDOCERR_ROFFLOOP, curp,
+				    curp->line, pos, NULL);
+			else if (mparse_buf_r(curp, ln, of, 0) == 1 ||
+			    start == 1) {
+				pos = 0;
+				continue;
+			}
+			free(ln.buf);
+			return 0;
+		case ROFF_APPEND:
+			pos = strlen(ln.buf);
+			continue;
+		case ROFF_RERUN:
+			goto rerun;
+		case ROFF_IGN:
+			pos = 0;
+			continue;
+		case ROFF_SO:
+			if ( ! (curp->options & MPARSE_SO) &&
+			    (i >= blk.sz || blk.buf[i] == '\0')) {
+				curp->sodest = mandoc_strdup(ln.buf + of);
+				free(ln.buf);
+				return 1;
+			}
+			/*
+			 * We remove `so' clauses from our lookaside
+			 * buffer because we're going to descend into
+			 * the file recursively.
+			 */
+			if (curp->secondary)
+				curp->secondary->sz -= pos + 1;
+			save_file = curp->file;
+			if ((fd = mparse_open(curp, ln.buf + of)) != -1) {
+				mparse_readfd(curp, fd, ln.buf + of);
+				close(fd);
+				curp->file = save_file;
+			} else {
+				curp->file = save_file;
+				mandoc_vmsg(MANDOCERR_SO_FAIL,
+				    curp, curp->line, pos,
+				    ".so %s", ln.buf + of);
+				ln.sz = mandoc_asprintf(&cp,
+				    ".sp\nSee the file %s.\n.sp",
+				    ln.buf + of);
+				free(ln.buf);
+				ln.buf = cp;
+				of = 0;
+				mparse_buf_r(curp, ln, of, 0);
+			}
+			pos = 0;
+			continue;
+		default:
+			break;
+		}
+
+		if (curp->man->macroset == MACROSET_NONE)
+			choose_parser(curp);
+
+		if ((curp->man->macroset == MACROSET_MDOC ?
+		    mdoc_parseln(curp->man, curp->line, ln.buf, of) :
+		    man_parseln(curp->man, curp->line, ln.buf, of)) == 2)
+				break;
+
+		/* Temporary buffers typically are not full. */
+
+		if (0 == start && '\0' == blk.buf[i])
+			break;
+
+		/* Start the next input line. */
+
+		pos = 0;
+	}
+
+	free(ln.buf);
+	return 1;
+}
+
+static int
+read_whole_file(struct mparse *curp, const char *file, int fd,
+		struct buf *fb, int *with_mmap)
+{
+	struct stat	 st;
+	gzFile		 gz;
+	size_t		 off;
+	ssize_t		 ssz;
+
+	if (fstat(fd, &st) == -1) {
+		mandoc_vmsg(MANDOCERR_FILE, curp, 0, 0,
+		    "fstat: %s", strerror(errno));
+		return 0;
+	}
+
+	/*
+	 * If we're a regular file, try just reading in the whole entry
+	 * via mmap().  This is faster than reading it into blocks, and
+	 * since each file is only a few bytes to begin with, I'm not
+	 * concerned that this is going to tank any machines.
+	 */
+
+	if (curp->gzip == 0 && S_ISREG(st.st_mode)) {
+		if (st.st_size > 0x7fffffff) {
+			mandoc_msg(MANDOCERR_TOOLARGE, curp, 0, 0, NULL);
+			return 0;
+		}
+		*with_mmap = 1;
+		fb->sz = (size_t)st.st_size;
+		fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
+		if (fb->buf != MAP_FAILED)
+			return 1;
+	}
+
+	if (curp->gzip) {
+		if ((gz = gzdopen(fd, "rb")) == NULL) {
+			mandoc_vmsg(MANDOCERR_FILE, curp, 0, 0,
+			    "gzdopen: %s", strerror(errno));
+			return 0;
+		}
+	} else
+		gz = NULL;
+
+	/*
+	 * If this isn't a regular file (like, say, stdin), then we must
+	 * go the old way and just read things in bit by bit.
+	 */
+
+	*with_mmap = 0;
+	off = 0;
+	fb->sz = 0;
+	fb->buf = NULL;
+	for (;;) {
+		if (off == fb->sz) {
+			if (fb->sz == (1U << 31)) {
+				mandoc_msg(MANDOCERR_TOOLARGE, curp,
+				    0, 0, NULL);
+				break;
+			}
+			resize_buf(fb, 65536);
+		}
+		ssz = curp->gzip ?
+		    gzread(gz, fb->buf + (int)off, fb->sz - off) :
+		    read(fd, fb->buf + (int)off, fb->sz - off);
+		if (ssz == 0) {
+			fb->sz = off;
+			return 1;
+		}
+		if (ssz == -1) {
+			mandoc_vmsg(MANDOCERR_FILE, curp, 0, 0,
+			    "read: %s", strerror(errno));
+			break;
+		}
+		off += (size_t)ssz;
+	}
+
+	free(fb->buf);
+	fb->buf = NULL;
+	return 0;
+}
+
+static void
+mparse_end(struct mparse *curp)
+{
+	if (curp->man->macroset == MACROSET_NONE)
+		curp->man->macroset = MACROSET_MAN;
+	if (curp->man->macroset == MACROSET_MDOC)
+		mdoc_endparse(curp->man);
+	else
+		man_endparse(curp->man);
+	roff_endparse(curp->roff);
+}
+
+static void
+mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file)
+{
+	struct buf	*svprimary;
+	const char	*svfile;
+	size_t		 offset;
+	static int	 recursion_depth;
+
+	if (64 < recursion_depth) {
+		mandoc_msg(MANDOCERR_ROFFLOOP, curp, curp->line, 0, NULL);
+		return;
+	}
+
+	/* Line number is per-file. */
+	svfile = curp->file;
+	curp->file = file;
+	svprimary = curp->primary;
+	curp->primary = &blk;
+	curp->line = 1;
+	recursion_depth++;
+
+	/* Skip an UTF-8 byte order mark. */
+	if (curp->filenc & MPARSE_UTF8 && blk.sz > 2 &&
+	    (unsigned char)blk.buf[0] == 0xef &&
+	    (unsigned char)blk.buf[1] == 0xbb &&
+	    (unsigned char)blk.buf[2] == 0xbf) {
+		offset = 3;
+		curp->filenc &= ~MPARSE_LATIN1;
+	} else
+		offset = 0;
+
+	mparse_buf_r(curp, blk, offset, 1);
+
+	if (--recursion_depth == 0)
+		mparse_end(curp);
+
+	curp->primary = svprimary;
+	curp->file = svfile;
+}
+
+enum mandoclevel
+mparse_readmem(struct mparse *curp, void *buf, size_t len,
+		const char *file)
+{
+	struct buf blk;
+
+	blk.buf = buf;
+	blk.sz = len;
+
+	mparse_parse_buffer(curp, blk, file);
+	return curp->file_status;
+}
+
+/*
+ * Read the whole file into memory and call the parsers.
+ * Called recursively when an .so request is encountered.
+ */
+enum mandoclevel
+mparse_readfd(struct mparse *curp, int fd, const char *file)
+{
+	struct buf	 blk;
+	int		 with_mmap;
+	int		 save_filenc;
+
+	if (read_whole_file(curp, file, fd, &blk, &with_mmap)) {
+		save_filenc = curp->filenc;
+		curp->filenc = curp->options &
+		    (MPARSE_UTF8 | MPARSE_LATIN1);
+		mparse_parse_buffer(curp, blk, file);
+		curp->filenc = save_filenc;
+		if (with_mmap)
+			munmap(blk.buf, blk.sz);
+		else
+			free(blk.buf);
+	}
+	return curp->file_status;
+}
+
+int
+mparse_open(struct mparse *curp, const char *file)
+{
+	char		 *cp;
+	int		  fd;
+
+	curp->file = file;
+	cp = strrchr(file, '.');
+	curp->gzip = (cp != NULL && ! strcmp(cp + 1, "gz"));
+
+	/* First try to use the filename as it is. */
+
+	if ((fd = open(file, O_RDONLY)) != -1)
+		return fd;
+
+	/*
+	 * If that doesn't work and the filename doesn't
+	 * already  end in .gz, try appending .gz.
+	 */
+
+	if ( ! curp->gzip) {
+		mandoc_asprintf(&cp, "%s.gz", file);
+		fd = open(cp, O_RDONLY);
+		free(cp);
+		if (fd != -1) {
+			curp->gzip = 1;
+			return fd;
+		}
+	}
+
+	/* Neither worked, give up. */
+
+	mandoc_msg(MANDOCERR_FILE, curp, 0, 0, strerror(errno));
+	return -1;
+}
+
+struct mparse *
+mparse_alloc(int options, enum mandocerr mmin, mandocmsg mmsg,
+    enum mandoc_os os_e, const char *os_s)
+{
+	struct mparse	*curp;
+
+	curp = mandoc_calloc(1, sizeof(struct mparse));
+
+	curp->options = options;
+	curp->mmin = mmin;
+	curp->mmsg = mmsg;
+	curp->os_s = os_s;
+
+	curp->roff = roff_alloc(curp, options);
+	curp->man = roff_man_alloc(curp->roff, curp, curp->os_s,
+		curp->options & MPARSE_QUICK ? 1 : 0);
+	if (curp->options & MPARSE_MDOC) {
+		curp->man->macroset = MACROSET_MDOC;
+		if (curp->man->mdocmac == NULL)
+			curp->man->mdocmac = roffhash_alloc(MDOC_Dd, MDOC_MAX);
+	} else if (curp->options & MPARSE_MAN) {
+		curp->man->macroset = MACROSET_MAN;
+		if (curp->man->manmac == NULL)
+			curp->man->manmac = roffhash_alloc(MAN_TH, MAN_MAX);
+	}
+	curp->man->first->tok = TOKEN_NONE;
+	curp->man->meta.os_e = os_e;
+	return curp;
+}
+
+void
+mparse_reset(struct mparse *curp)
+{
+	roff_reset(curp->roff);
+	roff_man_reset(curp->man);
+
+	free(curp->sodest);
+	curp->sodest = NULL;
+
+	if (curp->secondary)
+		curp->secondary->sz = 0;
+
+	curp->file_status = MANDOCLEVEL_OK;
+	curp->gzip = 0;
+}
+
+void
+mparse_free(struct mparse *curp)
+{
+
+	roffhash_free(curp->man->mdocmac);
+	roffhash_free(curp->man->manmac);
+	roff_man_free(curp->man);
+	roff_free(curp->roff);
+	if (curp->secondary)
+		free(curp->secondary->buf);
+
+	free(curp->secondary);
+	free(curp->sodest);
+	free(curp);
+}
+
+void
+mparse_result(struct mparse *curp, struct roff_man **man,
+	char **sodest)
+{
+
+	if (sodest && NULL != (*sodest = curp->sodest)) {
+		*man = NULL;
+		return;
+	}
+	if (man)
+		*man = curp->man;
+}
+
+void
+mparse_updaterc(struct mparse *curp, enum mandoclevel *rc)
+{
+	if (curp->file_status > *rc)
+		*rc = curp->file_status;
+}
+
+void
+mandoc_vmsg(enum mandocerr t, struct mparse *m,
+		int ln, int pos, const char *fmt, ...)
+{
+	char		 buf[256];
+	va_list		 ap;
+
+	va_start(ap, fmt);
+	(void)vsnprintf(buf, sizeof(buf), fmt, ap);
+	va_end(ap);
+
+	mandoc_msg(t, m, ln, pos, buf);
+}
+
+void
+mandoc_msg(enum mandocerr er, struct mparse *m,
+		int ln, int col, const char *msg)
+{
+	enum mandoclevel level;
+
+	if (er < m->mmin && er != MANDOCERR_FILE)
+		return;
+
+	level = MANDOCLEVEL_UNSUPP;
+	while (er < mandoclimits[level])
+		level--;
+
+	if (m->mmsg)
+		(*m->mmsg)(er, level, m->file, ln, col, msg);
+
+	if (m->file_status < level)
+		m->file_status = level;
+}
+
+const char *
+mparse_strerror(enum mandocerr er)
+{
+
+	return mandocerrs[er];
+}
+
+const char *
+mparse_strlevel(enum mandoclevel lvl)
+{
+	return mandoclevels[lvl];
+}
+
+void
+mparse_keep(struct mparse *p)
+{
+
+	assert(NULL == p->secondary);
+	p->secondary = mandoc_calloc(1, sizeof(struct buf));
+}
+
+const char *
+mparse_getkeep(const struct mparse *p)
+{
+
+	assert(p->secondary);
+	return p->secondary->sz ? p->secondary->buf : NULL;
+}

Added: vendor/mandoc/dist/regress/char/Makefile
===================================================================
--- vendor/mandoc/dist/regress/char/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.9 2014/06/20 18:27:51 schwarze Exp $
+
+SUBDIR = accent bar hyphen space unicode N
+
+.include "../Makefile.sub"
+.include <bsd.subdir.mk>

Added: vendor/mandoc/dist/regress/char/Makefile.inc
===================================================================
--- vendor/mandoc/dist/regress/char/Makefile.inc	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/Makefile.inc	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile.inc,v 1.3 2015/02/03 19:37:25 schwarze Exp $
+
+SKIP_TMAN ?= ALL
+SKIP_MARKDOWN ?= ALL
+
+.include "../Makefile.inc"

Added: vendor/mandoc/dist/regress/char/N/Makefile
===================================================================
--- vendor/mandoc/dist/regress/char/N/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/N/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.2 2011/11/17 16:28:45 schwarze Exp $
+
+REGRESS_TARGETS=basic
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/char/N/basic.in
===================================================================
--- vendor/mandoc/dist/regress/char/N/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/N/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: basic.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.TH N-BASIC 1 "January 29, 2011"
+.SH NAME
+N-basic \- basic handling of character number escapes
+.SH DESCRIPTION
+basic usage: x\N'65'x
+.br
+too large: x\N'259'x
+.br
+much too large: x\N'2259'x
+.br
+.\" XXX mandoc ignores non-printable characters, while groff does not
+.\" too small: x\N'1'x
+.\" .br
+.\" null: x\N'0'x
+.\" .br
+non-numerical content: x\N'XX'x
+.br
+mixed content: x\N'65XX'x
+.br
+empty: x\N''x
+.br
+no quoting: x\N665x
+.br
+non-matching quoting characters: x\NX65Yx
+.br
+end of test document

Added: vendor/mandoc/dist/regress/char/N/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/N/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/N/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+N-BASIC(1)                  General Commands Manual                 N-BASIC(1)
+
+
+
+NNAAMMEE
+       N-basic - basic handling of character number escapes
+
+DDEESSCCRRIIPPTTIIOONN
+       basic usage: xAx
+       too large: xx
+       much too large: xx
+       non-numerical content: xX'x
+       mixed content: xAX'x
+       empty: xx
+       no quoting: x65x
+       non-matching quoting characters: xAx
+       end of test document
+
+
+
+OpenBSD                        January 29, 2011                     N-BASIC(1)

Added: vendor/mandoc/dist/regress/char/accent/Makefile
===================================================================
--- vendor/mandoc/dist/regress/char/accent/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.1 2014/03/08 18:00:59 schwarze Exp $
+
+REGRESS_TARGETS = nocombine utf8only combine
+SKIP_ASCII = utf8only combine
+UTF8_TARGETS = nocombine utf8only combine
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/char/accent/combine.in
===================================================================
--- vendor/mandoc/dist/regress/char/accent/combine.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/combine.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+.\" $OpenBSD: combine.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-ACCENT-COMBINE 1 "February 28, 2014"
+.SH NAME
+\fBchar-accent-combine\fR - combining accents
+.SH DESCRIPTION
+char + combine char U: e\U'0301'
+.br
+char + combine char C: e\C'u0301'
+.br
+char + combine char named: e\[u0301]
+.\" XXX not implemented in mandoc
+.\" .br
+.\" combined chars named numeric: \[u0065_0301]
+.\" .br
+.\" combined chars named: \[e aa]
+.br
+combined char pre N: \['e]
+.br
+combined char pre 2: \('e
+.\" XXX Plan 9 roff only
+.\" .br
+.\" combined char post N: \[e']
+.\" .br
+.\" combined char post 2: \(e'

Added: vendor/mandoc/dist/regress/char/accent/combine.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/accent/combine.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/combine.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+CHAR-ACCENT-COMBINE(1)      General Commands Manual     CHAR-ACCENT-COMBINE(1)
+
+
+
+NNAAMMEE
+       cchhaarr--aacccceenntt--ccoommbbiinnee - combining accents
+
+DDEESSCCRRIIPPTTIIOONN
+       char + combine char U: eU'0301'
+       char + combine char C: é
+       char + combine char named: é
+       combined char pre N: é
+       combined char pre 2: é
+
+
+
+OpenBSD                        February 28, 2014        CHAR-ACCENT-COMBINE(1)

Added: vendor/mandoc/dist/regress/char/accent/nocombine.in
===================================================================
--- vendor/mandoc/dist/regress/char/accent/nocombine.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/nocombine.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+.\" $OpenBSD: nocombine.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-ACCENT-NOCOMBINE 1 "March 8, 2014"
+.SH NAME
+\fBchar-accent-nocombine\fR - non-combining accents
+.SH DESCRIPTION
+bare acute accent: e'e
+.br
+escaped acute accent: e\'e
+.br
+acute accent sequence: e\(aae
+.br
+bare grave accent: e`e
+.br
+escaped grave accent: e\`e
+.br
+acute grave sequence: e\(gae
+.br
+hungarian umlaut: e\(a"e
+.br
+.\" XXX This is ridiculous.
+.\" XXX groff prints the macron as an underscore in the previous line.
+.\" macron: e\(a-e
+.br
+.\" XXX groff doesn't have a dot in ASCII mode, only in UTF-8 mode.
+.\" dotted: e\(a.e
+.br
+circumflex: e\(a^e
+.br
+.\" XXX groff uses a backspace for this one in ASCII mode.
+.\" breve: e\(abe
+.br
+cedilla: e\(ace
+.br
+dieresis: e\(ade
+.br
+caron: e\(ahe
+.br
+ring: e\(aoe
+.br
+tilde: e\(a~e
+.br
+ogonek: e\(hoe
+.br
+text hat: e\(hae
+.br
+text tilde: e\(tie

Added: vendor/mandoc/dist/regress/char/accent/nocombine.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/accent/nocombine.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/nocombine.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+CHAR-ACCENT-NOCOMBINE(1)    General Commands Manual   CHAR-ACCENT-NOCOMBINE(1)
+
+
+
+NNAAMMEE
+       cchhaarr--aacccceenntt--nnooccoommbbiinnee - non-combining accents
+
+DDEESSCCRRIIPPTTIIOONN
+       bare acute accent: e'e
+       escaped acute accent: e'e
+       acute accent sequence: e'e
+       bare grave accent: e`e
+       escaped grave accent: e`e
+       acute grave sequence: e`e
+       hungarian umlaut: e"e
+       circumflex: e^e
+       cedilla: e,e
+       dieresis: e"e
+       caron: eve
+       ring: eoe
+       tilde: e~e
+       ogonek: e,e
+       text hat: e^e
+       text tilde: e~e
+
+
+
+OpenBSD                          March 8, 2014        CHAR-ACCENT-NOCOMBINE(1)

Added: vendor/mandoc/dist/regress/char/accent/nocombine.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/accent/nocombine.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/nocombine.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+CHAR-ACCENT-NOCOMBINE(1)    General Commands Manual   CHAR-ACCENT-NOCOMBINE(1)
+
+
+
+NNAAMMEE
+       cchhaarr--aacccceenntt--nnooccoommbbiinnee - non-combining accents
+
+DDEESSCCRRIIPPTTIIOONN
+       bare acute accent: e'e
+       escaped acute accent: e´e
+       acute accent sequence: e´e
+       bare grave accent: e`e
+       escaped grave accent: e`e
+       acute grave sequence: e`e
+       hungarian umlaut: e˝e
+       circumflex: e^e
+       cedilla: e¸e
+       dieresis: e¨e
+       caron: eˇe
+       ring: e˚e
+       tilde: e~e
+       ogonek: e˛e
+       text hat: e^e
+       text tilde: e~e
+
+
+
+OpenBSD                          March 8, 2014        CHAR-ACCENT-NOCOMBINE(1)

Added: vendor/mandoc/dist/regress/char/accent/utf8only.in
===================================================================
--- vendor/mandoc/dist/regress/char/accent/utf8only.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/utf8only.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: utf8only.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-ACCENT-UTF8ONLY 1 "March 8, 2014"
+.SH NAME
+\fBchar-accent-utf8only\fR - accents available in UTF-8 only
+.SH DESCRIPTION
+macron: e\(a-e
+.br
+dotted: e\(a.e
+.br
+breve: e\(abe

Added: vendor/mandoc/dist/regress/char/accent/utf8only.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/accent/utf8only.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/accent/utf8only.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+CHAR-ACCENT-UTF8ONLY(1)     General Commands Manual    CHAR-ACCENT-UTF8ONLY(1)
+
+
+
+NNAAMMEE
+       cchhaarr--aacccceenntt--uuttff88oonnllyy - accents available in UTF-8 only
+
+DDEESSCCRRIIPPTTIIOONN
+       macron: e¯e
+       dotted: e˙e
+       breve: e˘e
+
+
+
+OpenBSD                          March 8, 2014         CHAR-ACCENT-UTF8ONLY(1)

Added: vendor/mandoc/dist/regress/char/bar/Makefile
===================================================================
--- vendor/mandoc/dist/regress/char/bar/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/bar/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1 2012/07/18 10:36:20 schwarze Exp $
+
+REGRESS_TARGETS = man mdoc
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/char/bar/man.in
===================================================================
--- vendor/mandoc/dist/regress/char/bar/man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/bar/man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: man.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH bar-man 1 "July 17, 2012"
+.SH NAME
+\fBbar-man\fR - formatting the vertical bar symbol
+.SH DESCRIPTION
+.SS normal bar
+Manually switching fonts: \fIitalic\fRroman|roman\fPitalic
+.PP
+.B prefix | suffix
+.SS special character
+Manually switching fonts: \fIitalic\fRroman\(baroman\fPitalic
+.PP
+.B prefix \(ba suffix

Added: vendor/mandoc/dist/regress/char/bar/man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/bar/man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/bar/man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+bar-man(1)                  General Commands Manual                 bar-man(1)
+
+
+
+NNAAMMEE
+       bbaarr--mmaann - formatting the vertical bar symbol
+
+DDEESSCCRRIIPPTTIIOONN
+   nnoorrmmaall bbaarr
+       Manually switching fonts: _i_t_a_l_i_croman|roman_i_t_a_l_i_c
+
+       pprreeffiixx || ssuuffffiixx
+
+   ssppeecciiaall cchhaarraacctteerr
+       Manually switching fonts: _i_t_a_l_i_croman|roman_i_t_a_l_i_c
+
+       pprreeffiixx || ssuuffffiixx
+
+
+
+OpenBSD                          July 17, 2012                      bar-man(1)

Added: vendor/mandoc/dist/regress/char/bar/mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/char/bar/mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/bar/mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,38 @@
+.\" $OpenBSD: mdoc.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BAR-MDOC 1
+.Os
+.Sh NAME
+.Nm bar-mdoc
+.Nd formatting the vertical bar symbol
+.Sh DESCRIPTION
+.Ss normal bar
+Manually switching fonts: \fIitalic\fRroman|roman\fPitalic\fR
+.Pp
+.Fl isolated | em|bedded \fR|\fP formatted
+.br
+.Sy isolated | em|bedded \fR|\fP formatted
+.br
+.Ar isolated | em|bedded \fR|\fP formatted
+.br
+.Em isolated | em|bedded \fR|\fP formatted
+.Ss special character
+Manually switching fonts: \fIitalic\fRroman\(baroman\fPitalic\fR
+.Pp
+.Fl isolated \(ba em\(babedded \fR\(ba\fP formatted \fB\(ba\fP bold
+.br
+.Sy isolated \(ba em\(babedded \fR\(ba\fP formatted \fB\(ba\fP bold
+.br
+.Ar isolated \(ba em\(babedded \fR\(ba\fP formatted \fB\(ba\fP bold
+.br
+.Em isolated \(ba em\(babedded \fR\(ba\fP formatted \fB\(ba\fP bold
+.Ss predefined string
+Manually switching fonts: \fIitalic\fRroman\*(Baroman\fPbroken\fR
+.Pp
+.Fl isolated \*(Ba em\*(Babedded
+.br
+.Sy isolated \*(Ba em\*(Babedded
+.br
+.Ar isolated \*(Ba em\*(Babedded
+.br
+.Em isolated \*(Ba em\*(Babedded

Added: vendor/mandoc/dist/regress/char/bar/mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/bar/mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/bar/mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+BAR-MDOC(1)                 General Commands Manual                BAR-MDOC(1)
+
+NNAAMMEE
+     bbaarr--mmddoocc - formatting the vertical bar symbol
+
+DDEESSCCRRIIPPTTIIOONN
+   nnoorrmmaall bbaarr
+     Manually switching fonts: _i_t_a_l_i_croman|roman_i_t_a_l_i_c
+
+     --iissoollaatteedd | --eemm||bbeeddddeedd | --ffoorrmmaatttteedd
+     iissoollaatteedd | eemm||bbeeddddeedd | ffoorrmmaatttteedd
+     _i_s_o_l_a_t_e_d | _e_m_|_b_e_d_d_e_d | _f_o_r_m_a_t_t_e_d
+     _i_s_o_l_a_t_e_d | _e_m_|_b_e_d_d_e_d | _f_o_r_m_a_t_t_e_d
+
+   ssppeecciiaall cchhaarraacctteerr
+     Manually switching fonts: _i_t_a_l_i_croman|roman_i_t_a_l_i_c
+
+     --iissoollaatteedd --|| --eemm||bbeeddddeedd --| --ffoorrmmaatttteedd --|| --bboolldd
+     iissoollaatteedd || eemm||bbeeddddeedd | ffoorrmmaatttteedd || bboolldd
+     _i_s_o_l_a_t_e_d _| _e_m_|_b_e_d_d_e_d | _f_o_r_m_a_t_t_e_d || _b_o_l_d
+     _i_s_o_l_a_t_e_d _| _e_m_|_b_e_d_d_e_d | _f_o_r_m_a_t_t_e_d || _b_o_l_d
+
+   pprreeddeeffiinneedd ssttrriinngg
+     Manually switching fonts: _i_t_a_l_i_croman|romanbroken
+
+     --iissoollaatteedd | --eemm|bbeeddddeedd
+     iissoollaatteedd | eemm|bbeeddddeedd
+     _i_s_o_l_a_t_e_d | _e_m|_b_e_d_d_e_d
+     _i_s_o_l_a_t_e_d | _e_m|_b_e_d_d_e_d
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/hyphen/Makefile
===================================================================
--- vendor/mandoc/dist/regress/char/hyphen/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/hyphen/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.2 2011/11/17 16:28:45 schwarze Exp $
+
+REGRESS_TARGETS=man mdoc
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/char/hyphen/man.in
===================================================================
--- vendor/mandoc/dist/regress/char/hyphen/man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/hyphen/man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: man.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.TH hyphen-man 1 "September 18, 2011"
+.SH NAME
+\fBhyphen-man\fR - formatting hyphens and breaking lines
+.SH DESCRIPTION
+This is a long line of text, such that the last word won't fit: break-here
+.PP
+Try the same thing once same again, but now in italic font mode:
+\fIbreak-here\fP
+.PP
+Finally, try it a third time, but this time in bold font mode:
+\fBbreak-here\fP

Added: vendor/mandoc/dist/regress/char/hyphen/man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/hyphen/man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/hyphen/man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+hyphen-man(1)               General Commands Manual              hyphen-man(1)
+
+
+
+NNAAMMEE
+       hhyypphheenn--mmaann - formatting hyphens and breaking lines
+
+DDEESSCCRRIIPPTTIIOONN
+       This is a long line of text, such that the last word won't fit: break-
+       here
+
+       Try the same thing once same again, but now in italic font mode: _b_r_e_a_k_-
+       _h_e_r_e
+
+       Finally, try it a third time, but this time in bold font mode: bbrreeaakk--
+       hheerree
+
+
+
+OpenBSD                       September 18, 2011                 hyphen-man(1)

Added: vendor/mandoc/dist/regress/char/hyphen/mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/char/hyphen/mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/hyphen/mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: mdoc.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt HYPHEN-MDOC 1
+.Os
+.Sh NAME
+.Nm hyphen-mdoc
+.Nd formatting hyphens and breaking lines
+.Sh DESCRIPTION
+This is a long line of text, such that the last word won't fit: break-here
+.Pp
+But do not break the line at hyphens inside macro arguments: no
+.No break-here
+.Pp
+Try the same thing once same again, but now in italic font mode:
+\fIbreak-here\fP
+.Pp
+And finally, try it a third time, but this time in bold font mode:
+\fBbreak-here\fP

Added: vendor/mandoc/dist/regress/char/hyphen/mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/hyphen/mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/hyphen/mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+HYPHEN-MDOC(1)              General Commands Manual             HYPHEN-MDOC(1)
+
+NNAAMMEE
+     hhyypphheenn--mmddoocc - formatting hyphens and breaking lines
+
+DDEESSCCRRIIPPTTIIOONN
+     This is a long line of text, such that the last word won't fit: break-
+     here
+
+     But do not break the line at hyphens inside macro arguments: no
+     break-here
+
+     Try the same thing once same again, but now in italic font mode: _b_r_e_a_k_-
+     _h_e_r_e
+
+     And finally, try it a third time, but this time in bold font mode: bbrreeaakk--
+     hheerree
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/Makefile
===================================================================
--- vendor/mandoc/dist/regress/char/space/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+# $OpenBSD: Makefile,v 1.12 2016/12/07 23:27:42 schwarze Exp $
+
+REGRESS_TARGETS  = leading-mdoc leading-man multiple trailing-mdoc zerowidth
+REGRESS_TARGETS += eos eos-man break nobreak
+REGRESS_TARGETS += tab tab-man esct-mdoc esct-man
+
+UTF8_TARGETS	 = zerowidth
+
+HTML_TARGETS	 = zerowidth
+
+LINT_TARGETS	 = trailing-mdoc tab tab-man esct-mdoc esct-man
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/char/space/break.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CHAR-BREAK 1
+.Os
+.Sh NAME
+.Nm char-break
+.Nd optional line-break
+.Sh DESCRIPTION
+.Dl cons25,linux,rxvt,rxvt-unicode,\:sun,\:vt100,\:vt220,\:\
+wsvt25,\:xterm,\:xterm-color
+.Pp
+end of text

Added: vendor/mandoc/dist/regress/char/space/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+CHAR-BREAK(1)               General Commands Manual              CHAR-BREAK(1)
+
+NNAAMMEE
+     cchhaarr--bbrreeaakk - optional line-break
+
+DDEESSCCRRIIPPTTIIOONN
+           cons25,linux,rxvt,rxvt-unicode,sun,vt100,vt220,wsvt25,xterm,
+           xterm-color
+
+     end of text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/eos-man.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/eos-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/eos-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+.\" $OpenBSD: eos-man.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH SPACE-EOS-MAN 1 "December 22, 2013"
+.SH NAME
+SPACE-EOS-MAN \- end-of-sentence spacing in man(7) documents
+.SH DESCRIPTION
+This is a sentence.
+There is a double space before the next one.
+.PP
+Here is a full stop
+.B at the end of a macro.
+It causes a double space, too.
+.PP
+She said: "Here is another sentence."
+And it was detected even with quotation marks.
+(Really.)
+And within parantheses.
+.PP
+A dot in parantheses (.) is not a full stop.
+.PP
+A dot in the middle of an input line . is not a full stop.
+.PP
+At the end of an input line, even an escaped dot \&.
+is regarded as a full stop.

Added: vendor/mandoc/dist/regress/char/space/eos-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/eos-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/eos-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+SPACE-EOS-MAN(1)            General Commands Manual           SPACE-EOS-MAN(1)
+
+
+
+NNAAMMEE
+       SPACE-EOS-MAN - end-of-sentence spacing in man(7) documents
+
+DDEESSCCRRIIPPTTIIOONN
+       This is a sentence.  There is a double space before the next one.
+
+       Here is a full stop aatt tthhee eenndd ooff aa mmaaccrroo..  It causes a double space,
+       too.
+
+       She said: "Here is another sentence."  And it was detected even with
+       quotation marks.  (Really.)  And within parantheses.
+
+       A dot in parantheses (.) is not a full stop.
+
+       A dot in the middle of an input line . is not a full stop.
+
+       At the end of an input line, even an escaped dot .  is regarded as a
+       full stop.
+
+
+
+OpenBSD                        December 22, 2013              SPACE-EOS-MAN(1)

Added: vendor/mandoc/dist/regress/char/space/eos.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+.\" $OpenBSD: eos.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SPACE-EOS 1
+.Os
+.Sh NAME
+.Nm space-eos
+.Nd end-of-sentence spacing
+.Sh DESCRIPTION
+This is a sentence.
+There is a double space before the next one.
+.Pp
+Here is a full stop
+.Pq quite lonely .
+It causes a double space, too.
+.Pp
+A dot in parantheses (.) is not a full stop.
+Not even
+.Pq Like in this case.
+when preceded by a letter.
+.Pp
+A lonely dot in an enclosure
+.Pq \&.
+is not a full stop.
+.Pp
+A dot in the middle of an input line . is not a full stop.
+.Pp
+At the end of an input line, even an escaped dot \&.
+is regarded as a full stop.

Added: vendor/mandoc/dist/regress/char/space/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+SPACE-EOS(1)                General Commands Manual               SPACE-EOS(1)
+
+NNAAMMEE
+     ssppaaccee--eeooss - end-of-sentence spacing
+
+DDEESSCCRRIIPPTTIIOONN
+     This is a sentence.  There is a double space before the next one.
+
+     Here is a full stop (quite lonely).  It causes a double space, too.
+
+     A dot in parantheses (.) is not a full stop.  Not even (Like in this
+     case.) when preceded by a letter.
+
+     A lonely dot in an enclosure (.) is not a full stop.
+
+     A dot in the middle of an input line . is not a full stop.
+
+     At the end of an input line, even an escaped dot .  is regarded as a full
+     stop.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/esct-man.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/esct-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/esct-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+.\" $OpenBSD: esct-man.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH SPACE-ESCT-MAN 1 2013-06-20
+.SH NAME
+SPACE-T-MAN \- the t escape sequence in pages with man macros
+.SH DESCRIPTION
+In plain text:
+.br
+single	tab
+.br
+single\tescape-t
+.br
+double		tab
+.br
+double\t\tescape-t
+.br
+\tThis line starts with escape-t and comes close to the right margin.
+\tThe next line starts with escape-t as well.
+.sp
+In a literal display:
+.nf
+single	tab
+single\tescape-t
+double		tab
+double\t\tescape-t
+.fi
+.sp
+After the IP macro:
+.IP single	tab 3n
+text
+.IP single\tescape-t 3n
+text
+.PP
+After font macros:
+.br
+.B single\ttab

Added: vendor/mandoc/dist/regress/char/space/esct-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/esct-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/esct-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,36 @@
+SPACE-ESCT-MAN(1)           General Commands Manual          SPACE-ESCT-MAN(1)
+
+
+
+NNAAMMEE
+       SPACE-T-MAN - the t escape sequence in pages with man macros
+
+DDEESSCCRRIIPPTTIIOONN
+       In plain text:
+       single    tab
+       singleescape-t
+       double         tab
+       doubleescape-t
+       This line starts with escape-t and comes close to the right margin.
+       The next line starts with escape-t as well.
+
+       In a literal display:
+       single    tab
+       singleescape-t
+       double         tab
+       doubleescape-t
+
+       After the IP macro:
+
+       single    tab
+          text
+
+       single    escape-t
+          text
+
+       After font macros:
+       ssiinnggllee    ttaabb
+
+
+
+OpenBSD                           2013-06-20                 SPACE-ESCT-MAN(1)

Added: vendor/mandoc/dist/regress/char/space/esct-man.out_lint
===================================================================
--- vendor/mandoc/dist/regress/char/space/esct-man.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/esct-man.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+mandoc: esct-man.in:8:7: WARNING: tab in filled text
+mandoc: esct-man.in:12:7: WARNING: tab in filled text
+mandoc: esct-man.in:12:8: WARNING: tab in filled text
+mandoc: esct-man.in:28:11: WARNING: tab in filled text
+mandoc: esct-man.in:30:11: WARNING: tab in filled text
+mandoc: esct-man.in:35:10: WARNING: tab in filled text

Added: vendor/mandoc/dist/regress/char/space/esct-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/esct-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/esct-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,36 @@
+.\" $OpenBSD: esct-mdoc.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SPACE-ESCT-MDOC 1
+.Os
+.Sh NAME
+.Nm space-esct-mdoc
+.Nd the t escape sequence in pages with mdoc macros
+.Sh DESCRIPTION
+In plain text:
+.Pp
+single	tab
+.Pp
+single\tescape-t
+.Pp
+double		tab
+.Pp
+double\t\tescape-t
+.Pp
+\tThis line starts with escape-t and comes close to the right margin.
+\tThe next line starts with escape-t as well.
+.Pp
+In an unfilled display:
+.Bd -unfilled -offset 3n
+single	tab
+single\tescape-t
+double		tab
+double\t\tescape-t
+.Ed
+.Pp
+In a literal display:
+.Bd -literal -offset 3n
+single	tab
+single\tescape-t
+double		tab
+double\t\tescape-t
+.Ed

Added: vendor/mandoc/dist/regress/char/space/esct-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/esct-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/esct-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+SPACE-ESCT-MDOC(1)          General Commands Manual         SPACE-ESCT-MDOC(1)
+
+NNAAMMEE
+     ssppaaccee--eesscctt--mmddoocc - the t escape sequence in pages with mdoc macros
+
+DDEESSCCRRIIPPTTIIOONN
+     In plain text:
+
+     single    tab
+
+     singleescape-t
+
+     double         tab
+
+     doubleescape-t
+
+     This line starts with escape-t and comes close to the right margin.  The
+     next line starts with escape-t as well.
+
+     In an unfilled display:
+
+        single    tab
+        singleescape-t
+        double         tab
+        doubleescape-t
+
+     In a literal display:
+
+        single  tab
+        singleescape-t
+        double          tab
+        doubleescape-t
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/esct-mdoc.out_lint
===================================================================
--- vendor/mandoc/dist/regress/char/space/esct-mdoc.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/esct-mdoc.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: esct-mdoc.in:11:7: WARNING: tab in filled text
+mandoc: esct-mdoc.in:15:7: WARNING: tab in filled text
+mandoc: esct-mdoc.in:15:8: WARNING: tab in filled text

Added: vendor/mandoc/dist/regress/char/space/leading-man.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/leading-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/leading-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: leading-man.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH SPACE-LEADING-MAN 1 "January 15, 2011"
+.SH NAME
+space-leading-man \- leading spaces on text lines in man documents
+.SH DESCRIPTION
+normal line of text
+second normal line
+ leading space
+.BI bold italic
+normal after macro
+.BI bold italic
+ leading space after a macro line

Added: vendor/mandoc/dist/regress/char/space/leading-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/leading-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/leading-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+SPACE-LEADING-MAN(1)        General Commands Manual       SPACE-LEADING-MAN(1)
+
+
+
+NNAAMMEE
+       space-leading-man - leading spaces on text lines in man documents
+
+DDEESSCCRRIIPPTTIIOONN
+       normal line of text second normal line
+        leading space bboolldd_i_t_a_l_i_c normal after macro bboolldd_i_t_a_l_i_c
+        leading space after a macro line
+
+
+
+OpenBSD                        January 15, 2011           SPACE-LEADING-MAN(1)

Added: vendor/mandoc/dist/regress/char/space/leading-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/leading-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/leading-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: leading-mdoc.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SPACE-LEADING_MDOC 1
+.Os
+.Sh NAME
+.Nm space-leading-mdoc
+.Nd leading spaces on text lines in mdoc documents
+.Sh DESCRIPTION
+normal line of text
+second normal line
+ line with a leading space
+.Ux
+normal line after a macro line
+.Ux
+ leading space after a macro line
+.Bd -literal
+normal line in a literal display
+ leading space in a literal display
+another normal line
+.Ed
+.Bd -filled
+normal line in a filled display
+ leading space in a filled display
+another normal line
+.Ed

Added: vendor/mandoc/dist/regress/char/space/leading-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/leading-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/leading-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+SPACE-LEADING_MDOC(1)       General Commands Manual      SPACE-LEADING_MDOC(1)
+
+NNAAMMEE
+     ssppaaccee--lleeaaddiinngg--mmddoocc - leading spaces on text lines in mdoc documents
+
+DDEESSCCRRIIPPTTIIOONN
+     normal line of text second normal line
+      line with a leading space UNIX normal line after a macro line UNIX
+      leading space after a macro line
+
+     normal line in a literal display
+      leading space in a literal display
+     another normal line
+
+     normal line in a filled display
+      leading space in a filled display another normal line
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/multiple.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/multiple.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/multiple.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: multiple.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SPACE-MULTIPLE 1
+.Os
+.Sh NAME
+.Nm space-multiple
+.Nd handling of multiple adjacent space characters
+.Sh DESCRIPTION
+one space here
+.Pp
+two spaces  here
+.Pp
+three spaces   here
+.Pp
+one non-collapsing space here
+.Pp
+two non-collapsing spaces\ \ here
+.Pp
+three non-collapsing spaces\ \ \ here

Added: vendor/mandoc/dist/regress/char/space/multiple.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/multiple.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/multiple.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+SPACE-MULTIPLE(1)           General Commands Manual          SPACE-MULTIPLE(1)
+
+NNAAMMEE
+     ssppaaccee--mmuullttiippllee - handling of multiple adjacent space characters
+
+DDEESSCCRRIIPPTTIIOONN
+     one space here
+
+     two spaces  here
+
+     three spaces   here
+
+     one non-collapsing space here
+
+     two non-collapsing spaces  here
+
+     three non-collapsing spaces   here
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/nobreak.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/nobreak.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/nobreak.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: nobreak.in,v 1.5 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SPACE-NOBREAK 1
+.Os
+.Sh NAME
+.Nm space-nobreak
+.Nd non-breaking, non-collapsing space
+.Sh DESCRIPTION
+The following line has 78 characters and fits:
+.Pp
+78 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x x
+.Pp
+The following line has 79 characters and breaks:
+.Pp
+79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x x
+.Pp
+With a non-breaking space, it breaks earlier:
+.Pp
+79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x\~x
+.Pp
+The same with backslash-space:
+.Pp
+79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x\ x
+.Pp
+Only non-breaking spaces:
+.Pp
+79\~xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\~x\~x
+.Pp
+The same with backslash-space:
+.Pp
+79\ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\ x\ x

Added: vendor/mandoc/dist/regress/char/space/nobreak.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/nobreak.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/nobreak.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+SPACE-NOBREAK(1)            General Commands Manual           SPACE-NOBREAK(1)
+
+NNAAMMEE
+     ssppaaccee--nnoobbrreeaakk - non-breaking, non-collapsing space
+
+DDEESSCCRRIIPPTTIIOONN
+     The following line has 78 characters and fits:
+
+     78 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x x
+
+     The following line has 79 characters and breaks:
+
+     79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x
+     x
+
+     With a non-breaking space, it breaks earlier:
+
+     79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+     x x
+
+     The same with backslash-space:
+
+     79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+     x x
+
+     Only non-breaking spaces:
+
+     79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x x
+
+     The same with backslash-space:
+
+     79 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x x
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/tab-man.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/tab-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/tab-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+.\" $OpenBSD: tab-man.in,v 1.5 2017/07/04 14:53:23 schwarze Exp $
+.TH SPACE-TAB-MAN 1 "May 24, 2010"
+.SH NAME
+SPACE-TAB-MAN \- handling of literal tab characters
+.SH DESCRIPTION
+In plain text:
+.br
+1	x
+.br
+22	x
+.br
+333	x
+.br
+4444	x
+.br
+55555	x
+.br
+666666	x
+.br
+7777777	x
+.br
+88888888	x
+.br
+999999999	x
+.br
+aaaaaaaaaa	x
+.br
+bbbbbbbbbbb	x
+.br
+cccccccccccc	x
+.br
+ddddddddddddd	x
+.br
+tab	 space
+.br
+tab		tab
+.br
+space 	tab
+.br
+	tab
+.br
+		tab
+.br
+	This line starts with a tab and comes close to the right margin.
+	The next line starts with a tab as well.
+.br
+In a literal display:
+.nf
+1	x
+22	x
+333	x
+4444	x
+55555	x
+666666	x
+7777777	x
+88888888	x
+999999999	x
+aaaaaaaaaa	x
+bbbbbbbbbbb	x
+cccccccccccc	x
+ddddddddddddd	x
+tab	 space
+tab		tab
+space 	tab
+	tab
+		tab
+.fi

Added: vendor/mandoc/dist/regress/char/space/tab-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/tab-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/tab-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,52 @@
+SPACE-TAB-MAN(1)            General Commands Manual           SPACE-TAB-MAN(1)
+
+
+
+NNAAMMEE
+       SPACE-TAB-MAN - handling of literal tab characters
+
+DDEESSCCRRIIPPTTIIOONN
+       In plain text:
+       1    x
+       22   x
+       333  x
+       4444 x
+       55555     x
+       666666    x
+       7777777   x
+       88888888  x
+       999999999 x
+       aaaaaaaaaa     x
+       bbbbbbbbbbb    x
+       cccccccccccc   x
+       ddddddddddddd  x
+       tab   space
+       tab       tab
+       space     tab
+            tab
+                 tab
+            This line starts with a tab and comes close to the right margin.
+            The next line starts with a tab as well.
+       In a literal display:
+       1    x
+       22   x
+       333  x
+       4444 x
+       55555     x
+       666666    x
+       7777777   x
+       88888888  x
+       999999999 x
+       aaaaaaaaaa     x
+       bbbbbbbbbbb    x
+       cccccccccccc   x
+       ddddddddddddd  x
+       tab   space
+       tab       tab
+       space     tab
+            tab
+                 tab
+
+
+
+OpenBSD                          May 24, 2010                 SPACE-TAB-MAN(1)

Added: vendor/mandoc/dist/regress/char/space/tab-man.out_lint
===================================================================
--- vendor/mandoc/dist/regress/char/space/tab-man.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/tab-man.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+mandoc: tab-man.in:8:2: WARNING: tab in filled text
+mandoc: tab-man.in:10:3: WARNING: tab in filled text
+mandoc: tab-man.in:12:4: WARNING: tab in filled text
+mandoc: tab-man.in:14:5: WARNING: tab in filled text
+mandoc: tab-man.in:16:6: WARNING: tab in filled text
+mandoc: tab-man.in:18:7: WARNING: tab in filled text
+mandoc: tab-man.in:20:8: WARNING: tab in filled text
+mandoc: tab-man.in:22:9: WARNING: tab in filled text
+mandoc: tab-man.in:24:10: WARNING: tab in filled text
+mandoc: tab-man.in:26:11: WARNING: tab in filled text
+mandoc: tab-man.in:28:12: WARNING: tab in filled text
+mandoc: tab-man.in:30:13: WARNING: tab in filled text
+mandoc: tab-man.in:32:14: WARNING: tab in filled text
+mandoc: tab-man.in:34:4: WARNING: tab in filled text
+mandoc: tab-man.in:36:4: WARNING: tab in filled text
+mandoc: tab-man.in:36:5: WARNING: tab in filled text
+mandoc: tab-man.in:38:7: WARNING: tab in filled text
+mandoc: tab-man.in:40:1: WARNING: tab in filled text
+mandoc: tab-man.in:42:1: WARNING: tab in filled text
+mandoc: tab-man.in:42:2: WARNING: tab in filled text
+mandoc: tab-man.in:44:1: WARNING: tab in filled text
+mandoc: tab-man.in:45:1: WARNING: tab in filled text

Added: vendor/mandoc/dist/regress/char/space/tab.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/tab.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/tab.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,129 @@
+.\" $OpenBSD: tab.in,v 1.6 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SPACE-TAB 1
+.Os
+.Sh NAME
+.Nm space-tab
+.Nd handling of literal space characters
+.Sh DESCRIPTION
+plain text
+.br
+1	x
+.br
+22	x
+.br
+333	x
+.br
+4444	x
+.br
+55555	x
+.br
+666666	x
+.br
+7777777	x
+.br
+88888888	x
+.br
+999999999	x
+.br
+aaaaaaaaaa	x
+.br
+bbbbbbbbbbb	x
+.br
+cccccccccccc	x
+.br
+ddddddddddddd	x
+.br
+tab	 space
+.br
+tab		tab
+.br
+space 	tab
+.br
+	tab
+.br
+		tab
+.br
+	This line starts with a tab and comes close to the right margin.
+	The next line starts with a tab as well.
+.br
+ragged display
+.Bd -ragged -offset 2n
+1	x
+.br
+22	x
+.br
+333	x
+.br
+4444	x
+.br
+55555	x
+.br
+666666	x
+.br
+7777777	x
+.br
+88888888	x
+.br
+999999999	x
+.br
+aaaaaaaaaa	x
+.br
+bbbbbbbbbbb	x
+.br
+cccccccccccc	x
+.br
+ddddddddddddd	x
+.br
+tab	 space
+.br
+tab		tab
+.br
+space 	tab
+.br
+	tab
+.br
+		tab
+.Ed
+unfilled display
+.Bd -unfilled -offset 2n
+1	x
+22	x
+333	x
+4444	x
+55555	x
+666666	x
+7777777	x
+88888888	x
+999999999	x
+aaaaaaaaaa	x
+bbbbbbbbbbb	x
+cccccccccccc	x
+ddddddddddddd	x
+tab	 space
+tab		tab
+space 	tab
+	tab
+		tab
+.Ed
+literal display
+.Bd -literal -offset 2n
+1	x
+22	x
+333	x
+4444	x
+55555	x
+666666	x
+7777777	x
+88888888	x
+999999999	x
+aaaaaaaaaa	x
+bbbbbbbbbbb	x
+cccccccccccc	x
+ddddddddddddd	x
+tab	 space
+tab		tab
+space 	tab
+	tab
+		tab
+.Ed

Added: vendor/mandoc/dist/regress/char/space/tab.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/tab.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/tab.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,89 @@
+SPACE-TAB(1)                General Commands Manual               SPACE-TAB(1)
+
+NNAAMMEE
+     ssppaaccee--ttaabb - handling of literal space characters
+
+DDEESSCCRRIIPPTTIIOONN
+     plain text
+     1    x
+     22   x
+     333  x
+     4444 x
+     55555     x
+     666666    x
+     7777777   x
+     88888888  x
+     999999999 x
+     aaaaaaaaaa     x
+     bbbbbbbbbbb    x
+     cccccccccccc   x
+     ddddddddddddd  x
+     tab   space
+     tab       tab
+     space     tab
+          tab
+               tab
+          This line starts with a tab and comes close to the right margin.
+          The next line starts with a tab as well.
+     ragged display
+
+       1    x
+       22   x
+       333  x
+       4444 x
+       55555     x
+       666666    x
+       7777777   x
+       88888888  x
+       999999999 x
+       aaaaaaaaaa     x
+       bbbbbbbbbbb    x
+       cccccccccccc   x
+       ddddddddddddd  x
+       tab   space
+       tab       tab
+       space     tab
+            tab
+                 tab
+     unfilled display
+
+       1    x
+       22   x
+       333  x
+       4444 x
+       55555     x
+       666666    x
+       7777777   x
+       88888888  x
+       999999999 x
+       aaaaaaaaaa     x
+       bbbbbbbbbbb    x
+       cccccccccccc   x
+       ddddddddddddd  x
+       tab   space
+       tab       tab
+       space     tab
+            tab
+                 tab
+     literal display
+
+       1       x
+       22      x
+       333     x
+       4444    x
+       55555   x
+       666666  x
+       7777777 x
+       88888888        x
+       999999999       x
+       aaaaaaaaaa      x
+       bbbbbbbbbbb     x
+       cccccccccccc    x
+       ddddddddddddd   x
+       tab      space
+       tab             tab
+       space   tab
+               tab
+                       tab
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/tab.out_lint
===================================================================
--- vendor/mandoc/dist/regress/char/space/tab.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/tab.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+mandoc: tab.in:11:2: WARNING: tab in filled text
+mandoc: tab.in:13:3: WARNING: tab in filled text
+mandoc: tab.in:15:4: WARNING: tab in filled text
+mandoc: tab.in:17:5: WARNING: tab in filled text
+mandoc: tab.in:19:6: WARNING: tab in filled text
+mandoc: tab.in:21:7: WARNING: tab in filled text
+mandoc: tab.in:23:8: WARNING: tab in filled text
+mandoc: tab.in:25:9: WARNING: tab in filled text
+mandoc: tab.in:27:10: WARNING: tab in filled text
+mandoc: tab.in:29:11: WARNING: tab in filled text
+mandoc: tab.in:31:12: WARNING: tab in filled text
+mandoc: tab.in:33:13: WARNING: tab in filled text
+mandoc: tab.in:35:14: WARNING: tab in filled text
+mandoc: tab.in:37:4: WARNING: tab in filled text
+mandoc: tab.in:39:4: WARNING: tab in filled text
+mandoc: tab.in:39:5: WARNING: tab in filled text
+mandoc: tab.in:41:7: WARNING: tab in filled text
+mandoc: tab.in:43:1: WARNING: tab in filled text
+mandoc: tab.in:45:1: WARNING: tab in filled text
+mandoc: tab.in:45:2: WARNING: tab in filled text
+mandoc: tab.in:47:1: WARNING: tab in filled text
+mandoc: tab.in:48:1: WARNING: tab in filled text
+mandoc: tab.in:52:2: WARNING: tab in filled text
+mandoc: tab.in:54:3: WARNING: tab in filled text
+mandoc: tab.in:56:4: WARNING: tab in filled text
+mandoc: tab.in:58:5: WARNING: tab in filled text
+mandoc: tab.in:60:6: WARNING: tab in filled text
+mandoc: tab.in:62:7: WARNING: tab in filled text
+mandoc: tab.in:64:8: WARNING: tab in filled text
+mandoc: tab.in:66:9: WARNING: tab in filled text
+mandoc: tab.in:68:10: WARNING: tab in filled text
+mandoc: tab.in:70:11: WARNING: tab in filled text
+mandoc: tab.in:72:12: WARNING: tab in filled text
+mandoc: tab.in:74:13: WARNING: tab in filled text
+mandoc: tab.in:76:14: WARNING: tab in filled text
+mandoc: tab.in:78:4: WARNING: tab in filled text
+mandoc: tab.in:80:4: WARNING: tab in filled text
+mandoc: tab.in:80:5: WARNING: tab in filled text
+mandoc: tab.in:82:7: WARNING: tab in filled text
+mandoc: tab.in:84:1: WARNING: tab in filled text
+mandoc: tab.in:86:1: WARNING: tab in filled text
+mandoc: tab.in:86:2: WARNING: tab in filled text

Added: vendor/mandoc/dist/regress/char/space/trailing-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/trailing-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/trailing-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: trailing-mdoc.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SPACE-TRAILING-MDOC 1
+.Os
+.Sh NAME
+.Nm space-trailing-mdoc
+.Nd trailing spaces on input lines
+.Sh DESCRIPTION
+on a text line,  
+on a
+.Em macro  
+line, after a comment  \"  

Added: vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SPACE-TRAILING-MDOC(1)      General Commands Manual     SPACE-TRAILING-MDOC(1)
+
+NNAAMMEE
+     ssppaaccee--ttrraaiilliinngg--mmddoocc - trailing spaces on input lines
+
+DDEESSCCRRIIPPTTIIOONN
+     on a text line, on a _m_a_c_r_o line, after a comment
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_lint
===================================================================
--- vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/trailing-mdoc.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: trailing-mdoc.in:9:16: STYLE: whitespace at end of input line
+mandoc: trailing-mdoc.in:11:12: STYLE: whitespace at end of input line
+mandoc: trailing-mdoc.in:12:27: STYLE: whitespace at end of input line

Added: vendor/mandoc/dist/regress/char/space/zerowidth.in
===================================================================
--- vendor/mandoc/dist/regress/char/space/zerowidth.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/zerowidth.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: zerowidth.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.TH SPACE-ZEROWIDTH 1 "October 27, 2014"
+.SH NAME
+space-zerowidth \- zero width and narrow space characters
+.SH DESCRIPTION
+.nf
+BEGINTEST
+zero width space \e& between A and B: A\&B
+hyphenation allowed \e% between A and B: A\%B
+half-narrow (1/12) space \e^ between A and B: A\^B
+narrow space (1/6) \e| between A and B: A\|B
+ENDTEST
+.fi

Added: vendor/mandoc/dist/regress/char/space/zerowidth.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/space/zerowidth.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/zerowidth.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+SPACE-ZEROWIDTH(1)          General Commands Manual         SPACE-ZEROWIDTH(1)
+
+
+
+NNAAMMEE
+       space-zerowidth - zero width and narrow space characters
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       zero width space \& between A and B: AB
+       hyphenation allowed \% between A and B: AB
+       half-narrow (1/12) space \^ between A and B: AB
+       narrow space (1/6) \| between A and B: AB
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014             SPACE-ZEROWIDTH(1)

Added: vendor/mandoc/dist/regress/char/space/zerowidth.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/space/zerowidth.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/zerowidth.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+BEGINTEST
+zero width space \& between A and B: AB
+hyphenation allowed \% between A and B: AB
+half-narrow (1/12) space \^ between A and B: AB
+narrow space (1/6) \| between A and B: AB
+ENDTEST

Added: vendor/mandoc/dist/regress/char/space/zerowidth.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/space/zerowidth.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/space/zerowidth.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+SPACE-ZEROWIDTH(1)          General Commands Manual         SPACE-ZEROWIDTH(1)
+
+
+
+NNAAMMEE
+       space-zerowidth - zero width and narrow space characters
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       zero width space \& between A and B: AB
+       hyphenation allowed \% between A and B: AB
+       half-narrow (1/12) space \^ between A and B: AB
+       narrow space (1/6) \| between A and B: AB
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014             SPACE-ZEROWIDTH(1)

Added: vendor/mandoc/dist/regress/char/unicode/Makefile
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+# $OpenBSD: Makefile,v 1.4 2014/12/19 04:57:11 schwarze Exp $
+
+REGRESS_TARGETS  = ascii input invalid latin1 latin1diff
+REGRESS_TARGETS += man mdoc named namediff nogroff
+SKIP_ASCII 	 = man mdoc
+# input and nogroff exhibit implementation dependent differences
+# among wcwidth(3) on different systems
+#UTF8_TARGETS	 = ${REGRESS_TARGETS}
+UTF8_TARGETS	 = ascii invalid man mdoc namediff
+HTML_TARGETS	 = ascii invalid latin1 latin1diff named namediff nogroff
+LINT_TARGETS	 = input invalid
+
+SKIP_GROFF	 = input nogroff
+SKIP_GROFF_ASCII = latin1diff namediff
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/char/unicode/ascii.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/ascii.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/ascii.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+.\" $OpenBSD: ascii.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-UNICODE-ASCII 1 "October 27, 2014"
+.SH NAME
+char-unicode-ascii \- Unicode characters in the ASCII range
+.SH DESCRIPTION
+.nf
+BEGINTEST
+\[u0022]\N'34'\(dq	QUOTATION MARK
+\[u0023]\N'35'\(sh	NUMBER SIGN
+\[u0024]\N'36'\(Do	DOLLAR SIGN
+\[u0027]\N'39'\(aq	APOSTROPHE
+\[u002B]\N'43'\(pl	PLUS SIGN
+\N'45'\-	HYPHEN-MINUS
+\N'46'\.	FULL STOP
+\[u002F]\N'47'\(sl	SOLIDUS
+\[u003D]\N'61'\(eq	EQUALS SIGN
+\[u0040]\N'64'\(at	COMMERCIAL AT
+\[u005B]\N'91'\(lB	LEFT SQUARE BRACKET
+\[u005C]\N'92'\e\(rs	REVERSE SOLIDUS
+\[u005D]\N'93'\(rB	RIGHT SQUARE BRACKET
+\[u005E]\N'94'\(a^\(ha	CIRCUMFLEX ACCENT
+\[u005F]\N'95'\(ul\(ru	LOW LINE
+\[u0060]\N'96'\`\(ga	GRAVE ACCENT
+\[u007B]\N'123'\(lC	LEFT CURLY BRACKET
+\[u007C]\N'124'\(ba\(or	VERTICAL LINE
+\[u007D]\N'125'\(rC	RIGHT CURLY BRACKET
+\[u007E]\N'126'\(a~\(ti	TILDE
+ENDTEST
+.fi

Added: vendor/mandoc/dist/regress/char/unicode/ascii.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/ascii.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/ascii.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+CHAR-UNICODE-ASCII(1)       General Commands Manual      CHAR-UNICODE-ASCII(1)
+
+
+
+NNAAMMEE
+       char-unicode-ascii - Unicode characters in the ASCII range
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       """  QUOTATION MARK
+       ###  NUMBER SIGN
+       $$$  DOLLAR SIGN
+       '''  APOSTROPHE
+       +++  PLUS SIGN
+       --   HYPHEN-MINUS
+       ..   FULL STOP
+       ///  SOLIDUS
+       ===  EQUALS SIGN
+       @@@  COMMERCIAL AT
+       [[[  LEFT SQUARE BRACKET
+       \\\\ REVERSE SOLIDUS
+       ]]]  RIGHT SQUARE BRACKET
+       ^^^^ CIRCUMFLEX ACCENT
+       ____ LOW LINE
+       ```` GRAVE ACCENT
+       {{{  LEFT CURLY BRACKET
+       |||| VERTICAL LINE
+       }}}  RIGHT CURLY BRACKET
+       ~~~~ TILDE
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014          CHAR-UNICODE-ASCII(1)

Added: vendor/mandoc/dist/regress/char/unicode/ascii.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/ascii.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/ascii.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+BEGINTEST
+"""	QUOTATION MARK
+###	NUMBER SIGN
+$$$	DOLLAR SIGN
+'''	APOSTROPHE
++++	PLUS SIGN
+--	HYPHEN-MINUS
+..	FULL STOP
+///	SOLIDUS
+===	EQUALS SIGN
+@@@	COMMERCIAL AT
+[[[	LEFT SQUARE BRACKET
+\\\\	REVERSE SOLIDUS
+]]]	RIGHT SQUARE BRACKET
+^^^^	CIRCUMFLEX ACCENT
+____	LOW LINE
+````	GRAVE ACCENT
+{{{	LEFT CURLY BRACKET
+||||	VERTICAL LINE
+}}}	RIGHT CURLY BRACKET
+~~~~	TILDE
+ENDTEST

Added: vendor/mandoc/dist/regress/char/unicode/ascii.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/ascii.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/ascii.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+CHAR-UNICODE-ASCII(1)       General Commands Manual      CHAR-UNICODE-ASCII(1)
+
+
+
+NNAAMMEE
+       char-unicode-ascii - Unicode characters in the ASCII range
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       """  QUOTATION MARK
+       ###  NUMBER SIGN
+       $$$  DOLLAR SIGN
+       '''  APOSTROPHE
+       +++  PLUS SIGN
+       --   HYPHEN-MINUS
+       ..   FULL STOP
+       ///  SOLIDUS
+       ===  EQUALS SIGN
+       @@@  COMMERCIAL AT
+       [[[  LEFT SQUARE BRACKET
+       \\\\ REVERSE SOLIDUS
+       ]]]  RIGHT SQUARE BRACKET
+       ^^^^ CIRCUMFLEX ACCENT
+       ____ LOW LINE
+       ```` GRAVE ACCENT
+       {{{  LEFT CURLY BRACKET
+       |||| VERTICAL LINE
+       }}}  RIGHT CURLY BRACKET
+       ~~~~ TILDE
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014          CHAR-UNICODE-ASCII(1)

Added: vendor/mandoc/dist/regress/char/unicode/input.in
===================================================================
(Binary files differ)

Index: vendor/mandoc/dist/regress/char/unicode/input.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/input.in	2017-12-22 21:45:30 UTC (rev 9734)
+++ vendor/mandoc/dist/regress/char/unicode/input.in	2018-01-19 04:36:23 UTC (rev 9735)

Property changes on: vendor/mandoc/dist/regress/char/unicode/input.in
___________________________________________________________________
Added: svn:mime-type
## -0,0 +1 ##
+application/octet-stream
\ No newline at end of property
Added: vendor/mandoc/dist/regress/char/unicode/input.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/input.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/input.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+CHAR-UNICODE-INPUT(1)       General Commands Manual      CHAR-UNICODE-INPUT(1)
+
+
+
+NNAAMMEE
+       char-unicode-input - Unicode characters in the input file
+
+DDEESSCCRRIIPPTTIIOONN
+       lowest valid: <80>
+
+   OOnnee--bbyyttee rraannggee
+
+       U+0000   0x00   <NUL>?   lowest ASCII
+       U+001f   0x1f   <US>?    highest ASCII control character
+       U+007f   0x7f   <DEL>?   highest ASCII
+                0x80   ?        leading lowest continuation
+                0xbf   ?        leading highest continuation
+
+   TTwwoo--bbyyttee rraannggee
+
+       U+0000   0xc080     ??         lowest obfuscated ASCII
+       U+007f   0xc1bf     ??         highest obfuscated ASCII
+                0xc278     ?x         ASCII continuation
+       U+0080   0xc280     <80><80>   lowest two-byte
+                0xc2c380   ?`A         high continuation
+       U+07FF   0xdfbf     <?><?>     highest two-byte
+
+   TThhrreeee--bbyyttee rraannggee
+
+       U+0000   0xe08080   ???      lowest obfuscated ASCII
+       U+007f   0xe081bf   ???      highest obfuscated ASCII
+       U+0080   0xe08280   ???      lowest obfuscated two-byte
+       U+07FF   0xe09fbf   ???      highest obfuscated two-byte
+       U+0800   0xe0a080   <?><?>   lowest three-byte
+       U+0FFF   0xe0bfbf   <?><?>   end of first middle byte
+       U+1000   0xe18080   <?><?>   begin of second middle byte
+       U+CFFF   0xecbfbf   <?><?>   end of last normal middle byte
+       U+D000   0xed8080   <?><?>   begin of strange middle byte
+       U+D7FF   0xed9fbf   <?><?>   highest public three-byte
+       U+D800   0xeda080   ???      lowest surrogate
+       U+DFFF   0xedbfbf   ???      highest surrogate
+       U+E000   0xee8080   <?><?>   lowest private use
+       U+FFFF   0xefbfbf   <?><?>   highest three-byte
+
+   FFoouurr--bbyyttee rraannggee
+
+       U+0000     0xf0808080     ????     lowest obfuscated ASCII
+       U+007f     0xf08081bf     ????     highest obfuscated ASCII
+       U+0080     0xf0808280     ????     lowest obfuscated two-byte
+       U+07FF     0xf0809fbf     ????     highest obfuscated two-byte
+       U+0800     0xf080a080     ????     lowest obfuscated three-byte
+       U+FFFF     0xf08fbfbf     ????     highest obfuscated three-byte
+       U+10000    0xf0908080     <?><?>   lowest four-byte
+       U+3FFFF    0xf0bfbfbf     <?><?>   end of first middle byte
+       U+40000    0xf1808080     <?><?>   second middle byte
+       U+FFFFF    0xf3bfbfbf     <?><?>   last normal middle byte
+       U+100000   0xf4808080     <?><?>   strange middle byte
+       U+10FFFF   0xf48fbfbf     <?><?>   last valid four-byte
+       U+110000   0xf4908080     ????     lowest beyond Unicode
+       U+13FFFF   0xf4bfbfbf     ????     end of strange middle byte
+       U+140000   0xf5808080     ????     lowest invalid middle byte
+       U+1FFFFF   0xf7bfbfbf     ????     highest four-byte
+       U+200000   0xf888808080   ?????    lowest five-byte
+
+
+
+OpenBSD                        December 19, 2014         CHAR-UNICODE-INPUT(1)

Added: vendor/mandoc/dist/regress/char/unicode/input.out_lint
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/input.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/input.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,81 @@
+mandoc: input.in:11:21: ERROR: skipping bad character: 0x0
+mandoc: input.in:12:21: ERROR: skipping bad character: 0x1f
+mandoc: input.in:13:21: ERROR: skipping bad character: 0x7f
+mandoc: input.in:14:7: ERROR: skipping bad character: 0x80
+mandoc: input.in:15:7: ERROR: skipping bad character: 0xbf
+mandoc: input.in:21:15: ERROR: skipping bad character: 0xc0
+mandoc: input.in:21:16: ERROR: skipping bad character: 0x80
+mandoc: input.in:22:15: ERROR: skipping bad character: 0xc1
+mandoc: input.in:22:16: ERROR: skipping bad character: 0xbf
+mandoc: input.in:23:9: ERROR: skipping bad character: 0xc2
+mandoc: input.in:25:11: ERROR: skipping bad character: 0xc2
+mandoc: input.in:32:17: ERROR: skipping bad character: 0xc0
+mandoc: input.in:32:18: ERROR: skipping bad character: 0x80
+mandoc: input.in:32:19: ERROR: skipping bad character: 0x80
+mandoc: input.in:33:17: ERROR: skipping bad character: 0xe0
+mandoc: input.in:33:18: ERROR: skipping bad character: 0x81
+mandoc: input.in:33:19: ERROR: skipping bad character: 0xbf
+mandoc: input.in:34:17: ERROR: skipping bad character: 0xe0
+mandoc: input.in:34:18: ERROR: skipping bad character: 0x82
+mandoc: input.in:34:19: ERROR: skipping bad character: 0x80
+mandoc: input.in:35:17: ERROR: skipping bad character: 0xe0
+mandoc: input.in:35:18: ERROR: skipping bad character: 0x9f
+mandoc: input.in:35:19: ERROR: skipping bad character: 0xbf
+mandoc: input.in:42:25: ERROR: skipping bad character: 0xed
+mandoc: input.in:42:26: ERROR: skipping bad character: 0xa0
+mandoc: input.in:42:27: ERROR: skipping bad character: 0x80
+mandoc: input.in:42:17: WARNING: invalid escape sequence: \[uD800]
+mandoc: input.in:43:25: ERROR: skipping bad character: 0xed
+mandoc: input.in:43:26: ERROR: skipping bad character: 0xbf
+mandoc: input.in:43:27: ERROR: skipping bad character: 0xbf
+mandoc: input.in:43:17: WARNING: invalid escape sequence: \[uDFFF]
+mandoc: input.in:51:19: ERROR: skipping bad character: 0xf0
+mandoc: input.in:51:20: ERROR: skipping bad character: 0x80
+mandoc: input.in:51:21: ERROR: skipping bad character: 0x80
+mandoc: input.in:51:22: ERROR: skipping bad character: 0x80
+mandoc: input.in:52:19: ERROR: skipping bad character: 0xf0
+mandoc: input.in:52:20: ERROR: skipping bad character: 0x80
+mandoc: input.in:52:21: ERROR: skipping bad character: 0x81
+mandoc: input.in:52:22: ERROR: skipping bad character: 0xbf
+mandoc: input.in:53:19: ERROR: skipping bad character: 0xf0
+mandoc: input.in:53:20: ERROR: skipping bad character: 0x80
+mandoc: input.in:53:21: ERROR: skipping bad character: 0x82
+mandoc: input.in:53:22: ERROR: skipping bad character: 0x80
+mandoc: input.in:54:19: ERROR: skipping bad character: 0xf0
+mandoc: input.in:54:20: ERROR: skipping bad character: 0x80
+mandoc: input.in:54:21: ERROR: skipping bad character: 0x9f
+mandoc: input.in:54:22: ERROR: skipping bad character: 0xbf
+mandoc: input.in:55:19: ERROR: skipping bad character: 0xf0
+mandoc: input.in:55:20: ERROR: skipping bad character: 0x80
+mandoc: input.in:55:21: ERROR: skipping bad character: 0xa0
+mandoc: input.in:55:22: ERROR: skipping bad character: 0x80
+mandoc: input.in:56:19: ERROR: skipping bad character: 0xf0
+mandoc: input.in:56:20: ERROR: skipping bad character: 0x8f
+mandoc: input.in:56:21: ERROR: skipping bad character: 0xbf
+mandoc: input.in:56:22: ERROR: skipping bad character: 0xbf
+mandoc: input.in:63:31: ERROR: skipping bad character: 0xf4
+mandoc: input.in:63:32: ERROR: skipping bad character: 0x90
+mandoc: input.in:63:33: ERROR: skipping bad character: 0x80
+mandoc: input.in:63:34: ERROR: skipping bad character: 0x80
+mandoc: input.in:63:21: WARNING: invalid escape sequence: \[u110000]
+mandoc: input.in:64:31: ERROR: skipping bad character: 0xf4
+mandoc: input.in:64:32: ERROR: skipping bad character: 0xbf
+mandoc: input.in:64:33: ERROR: skipping bad character: 0xbf
+mandoc: input.in:64:34: ERROR: skipping bad character: 0xbf
+mandoc: input.in:64:21: WARNING: invalid escape sequence: \[u13FFFF]
+mandoc: input.in:65:31: ERROR: skipping bad character: 0xf5
+mandoc: input.in:65:32: ERROR: skipping bad character: 0x80
+mandoc: input.in:65:33: ERROR: skipping bad character: 0x80
+mandoc: input.in:65:34: ERROR: skipping bad character: 0x80
+mandoc: input.in:65:21: WARNING: invalid escape sequence: \[u140000]
+mandoc: input.in:66:31: ERROR: skipping bad character: 0xf7
+mandoc: input.in:66:32: ERROR: skipping bad character: 0xbf
+mandoc: input.in:66:33: ERROR: skipping bad character: 0xbf
+mandoc: input.in:66:34: ERROR: skipping bad character: 0xbf
+mandoc: input.in:66:21: WARNING: invalid escape sequence: \[u1FFFFF]
+mandoc: input.in:67:33: ERROR: skipping bad character: 0xf8
+mandoc: input.in:67:34: ERROR: skipping bad character: 0x88
+mandoc: input.in:67:35: ERROR: skipping bad character: 0x80
+mandoc: input.in:67:36: ERROR: skipping bad character: 0x80
+mandoc: input.in:67:37: ERROR: skipping bad character: 0x80
+mandoc: input.in:67:23: WARNING: invalid escape sequence: \[u200000]

Added: vendor/mandoc/dist/regress/char/unicode/input.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/input.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/input.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+CHAR-UNICODE-INPUT(1)       General Commands Manual      CHAR-UNICODE-INPUT(1)
+
+
+
+NNAAMMEE
+       char-unicode-input - Unicode characters in the input file
+
+DDEESSCCRRIIPPTTIIOONN
+       lowest valid: �
+
+   OOnnee--bbyyttee rraannggee
+
+       U+0000   0x00   �?   lowest ASCII
+       U+001f   0x1f   �?   highest ASCII control character
+       U+007f   0x7f   �?   highest ASCII
+                0x80   ?    leading lowest continuation
+                0xbf   ?    leading highest continuation
+
+   TTwwoo--bbyyttee rraannggee
+
+       U+0000   0xc080     ??   lowest obfuscated ASCII
+       U+007f   0xc1bf     ??   highest obfuscated ASCII
+                0xc278     ?x   ASCII continuation
+       U+0080   0xc280     ��   lowest two-byte
+                0xc2c380   ?À   high continuation
+       U+07FF   0xdfbf     ߿߿     highest two-byte
+
+   TThhrreeee--bbyyttee rraannggee
+
+       U+0000   0xe08080   ???    lowest obfuscated ASCII
+       U+007f   0xe081bf   ???    highest obfuscated ASCII
+       U+0080   0xe08280   ???    lowest obfuscated two-byte
+       U+07FF   0xe09fbf   ???    highest obfuscated two-byte
+       U+0800   0xe0a080   ࠀࠀ     lowest three-byte
+       U+0FFF   0xe0bfbf   ࿿࿿       end of first middle byte
+       U+1000   0xe18080   ကက     begin of second middle byte
+       U+CFFF   0xecbfbf   쿿쿿   end of last normal middle byte
+       U+D000   0xed8080   퀀퀀   begin of strange middle byte
+       U+D7FF   0xed9fbf   ퟿퟿       highest public three-byte
+       U+D800   0xeda080   ???    lowest surrogate
+       U+DFFF   0xedbfbf   ???    highest surrogate
+       U+E000   0xee8080        lowest private use
+       U+FFFF   0xefbfbf   \x{FFFF}\x{FFFF}       highest three-byte
+
+   FFoouurr--bbyyttee rraannggee
+
+       U+0000     0xf0808080     ????    lowest obfuscated ASCII
+       U+007f     0xf08081bf     ????    highest obfuscated ASCII
+       U+0080     0xf0808280     ????    lowest obfuscated two-byte
+       U+07FF     0xf0809fbf     ????    highest obfuscated two-byte
+       U+0800     0xf080a080     ????    lowest obfuscated three-byte
+       U+FFFF     0xf08fbfbf     ????    highest obfuscated three-byte
+       U+10000    0xf0908080     𐀀𐀀      lowest four-byte
+       U+3FFFF    0xf0bfbfbf     \x{3FFFF}\x{3FFFF}        end of first middle byte
+       U+40000    0xf1808080     񀀀񀀀        second middle byte
+       U+FFFFF    0xf3bfbfbf     \x{FFFFF}\x{FFFFF}        last normal middle byte
+       U+100000   0xf4808080     􀀀􀀀        strange middle byte
+       U+10FFFF   0xf48fbfbf     \x{10FFFF}\x{10FFFF}        last valid four-byte
+       U+110000   0xf4908080     ????    lowest beyond Unicode
+       U+13FFFF   0xf4bfbfbf     ????    end of strange middle byte
+       U+140000   0xf5808080     ????    lowest invalid middle byte
+       U+1FFFFF   0xf7bfbfbf     ????    highest four-byte
+       U+200000   0xf888808080   ?????   lowest five-byte
+
+
+
+OpenBSD                        December 19, 2014         CHAR-UNICODE-INPUT(1)

Added: vendor/mandoc/dist/regress/char/unicode/invalid.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/invalid.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/invalid.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: invalid.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CHAR-UNICODE-INVALID 1
+.Os
+.Sh NAME
+.Nm char-unicode-invalid
+.Nd invalid unicode characters
+.Sh DESCRIPTION
+.Bd -unfilled
+BEGINTEST
+too short: >\[u2B].\[u02B]<
+just right: >\[u002B]<
+too long: >\[u0002B].\[u00002B].\[u000002B]<
+too large: >\[u110000].\[u200000].\[u1000000]<
+trailing garbage: >\[u1234g]<
+not unicode: >\[ul].\[ua].\[uA]<
+ENDTEST
+.Ed

Added: vendor/mandoc/dist/regress/char/unicode/invalid.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/invalid.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/invalid.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+CHAR-UNICODE-INVALID(1)     General Commands Manual    CHAR-UNICODE-INVALID(1)
+
+NNAAMMEE
+     cchhaarr--uunniiccooddee--iinnvvaalliidd - invalid unicode characters
+
+DDEESSCCRRIIPPTTIIOONN
+     BEGINTEST
+     too short: >.<
+     just right: >+<
+     too long: >..<
+     too large: >..<
+     trailing garbage: ><
+     not unicode: >_.|^.=^<
+     ENDTEST
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/unicode/invalid.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/invalid.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/invalid.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+BEGINTEST 
+too short: >.< 
+just right: >+< 
+too long: >..< 
+too large: >..< 
+trailing garbage: >< 
+not unicode: >_.&#x2191;.&#x21D1;< 
+ENDTEST

Added: vendor/mandoc/dist/regress/char/unicode/invalid.out_lint
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/invalid.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/invalid.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+mandoc: invalid.in:11:20: WARNING: invalid escape sequence: \[u02B]
+mandoc: invalid.in:11:13: WARNING: invalid escape sequence: \[u2B]
+mandoc: invalid.in:13:33: WARNING: invalid escape sequence: \[u000002B]
+mandoc: invalid.in:13:22: WARNING: invalid escape sequence: \[u00002B]
+mandoc: invalid.in:13:12: WARNING: invalid escape sequence: \[u0002B]
+mandoc: invalid.in:14:35: WARNING: invalid escape sequence: \[u1000000]
+mandoc: invalid.in:14:24: WARNING: invalid escape sequence: \[u200000]
+mandoc: invalid.in:14:13: WARNING: invalid escape sequence: \[u110000]
+mandoc: invalid.in:15:20: WARNING: invalid escape sequence: \[u1234g]

Added: vendor/mandoc/dist/regress/char/unicode/invalid.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/invalid.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/invalid.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+CHAR-UNICODE-INVALID(1)     General Commands Manual    CHAR-UNICODE-INVALID(1)
+
+NNAAMMEE
+     cchhaarr--uunniiccooddee--iinnvvaalliidd – invalid unicode characters
+
+DDEESSCCRRIIPPTTIIOONN
+     BEGINTEST
+     too short: >.<
+     just right: >+<
+     too long: >..<
+     too large: >..<
+     trailing garbage: ><
+     not unicode: >_.↑.⇑<
+     ENDTEST
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/unicode/latin1.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,93 @@
+.\" $OpenBSD: latin1.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-UNICODE-LATIN1 1 "October 27, 2014"
+.SH NAME
+char-unicode-latin1 \- Unicode characters in the ISO-8859-1 range
+.SH DESCRIPTION
+.nf
+BEGINTEST
+\[u00A2]\(ct	CENT SIGN
+\[u00A4]\(Cs	CURRENCY SIGN
+\[u00A5]\(Ye	YEN SIGN
+\[u00A6]\(bb	BROKEN BAR
+\[u00A8]\(ad	DIAERESIS
+\[u00A9]\(co	COPYRIGHT SIGN
+\[u00AA]\(Of	FEMININE ORDINAL INDICATOR
+\[u00AB]\(Fo	LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
+\[u00AC]\(no\[tno]	NOT SIGN
+\[u00AD]    SOFT HYPHEN
+\[u00AE]\(rg	REGISTERED SIGN
+\[u00B1]\(+-\[t+-]	PLUS-MINUS SIGN
+\[u00B2]\(S2	SUPERSCRIPT TWO
+\[u00B3]\(S3	SUPERSCRIPT THREE
+\[u00B4]\'\(aa	ACUTE ACCENT
+\[u00B5]\(mc	MICRO SIGN
+\[u00B7]\(pc	MIDDLE DOT
+\[u00B8]\(ac	CEDILLA
+\[u00B9]\(S1	SUPERSCRIPT ONE
+\[u00BA]\(Om	MASCULINE ORDINAL INDICATOR
+\[u00BB]\(Fc	RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
+\[u00BC]\(14	VULGAR FRACTION ONE QUARTER
+\[u00BD]\(12	VULGAR FRACTION ONE HALF
+\[u00BE]\(34	VULGAR FRACTION THREE QUARTERS
+\[u00C0]\(`A	LATIN CAPITAL LETTER A WITH GRAVE
+\[u00C1]\('A	LATIN CAPITAL LETTER A WITH ACUTE
+\[u00C2]\(^A	LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+\[u00C3]\(~A	LATIN CAPITAL LETTER A WITH TILDE
+\[u00C4]\(:A	LATIN CAPITAL LETTER A WITH DIAERESIS
+\[u00C5]\(oA	LATIN CAPITAL LETTER A WITH RING ABOVE
+\[u00C6]\(AE	LATIN CAPITAL LETTER AE
+\[u00C7]\(,C	LATIN CAPITAL LETTER C WITH CEDILLA
+\[u00C8]\(`E	LATIN CAPITAL LETTER E WITH GRAVE
+\[u00C9]\('E	LATIN CAPITAL LETTER E WITH ACUTE
+\[u00CA]\(^E	LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+\[u00CB]\(:E	LATIN CAPITAL LETTER E WITH DIAERESIS
+\[u00CC]\(`I	LATIN CAPITAL LETTER I WITH GRAVE
+\[u00CD]\('I	LATIN CAPITAL LETTER I WITH ACUTE
+\[u00CE]\(^I	LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+\[u00CF]\(:I	LATIN CAPITAL LETTER I WITH DIAERESIS
+\[u00D0]\(-D	LATIN CAPITAL LETTER ETH
+\[u00D1]\(~N	LATIN CAPITAL LETTER N WITH TILDE
+\[u00D2]\(`O	LATIN CAPITAL LETTER O WITH GRAVE
+\[u00D3]\('O	LATIN CAPITAL LETTER O WITH ACUTE
+\[u00D4]\(^O	LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+\[u00D5]\(~O	LATIN CAPITAL LETTER O WITH TILDE
+\[u00D6]\(:O	LATIN CAPITAL LETTER O WITH DIAERESIS
+\[u00D7]\(mu\[tmu]	MULTIPLICATION SIGN
+\[u00D8]\(/O	LATIN CAPITAL LETTER O WITH STROKE
+\[u00D9]\(`U	LATIN CAPITAL LETTER U WITH GRAVE
+\[u00DA]\('U	LATIN CAPITAL LETTER U WITH ACUTE
+\[u00DB]\(^U	LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+\[u00DC]\(:U	LATIN CAPITAL LETTER U WITH DIAERESIS
+\[u00DD]	LATIN CAPITAL LETTER Y WITH ACUTE
+\[u00E0]\(`a	LATIN SMALL LETTER A WITH GRAVE
+\[u00E1]\('a	LATIN SMALL LETTER A WITH ACUTE
+\[u00E2]\(^a	LATIN SMALL LETTER A WITH CIRCUMFLEX
+\[u00E3]\(~a	LATIN SMALL LETTER A WITH TILDE
+\[u00E4]\(:a	LATIN SMALL LETTER A WITH DIAERESIS
+\[u00E5]\(oa	LATIN SMALL LETTER A WITH RING ABOVE
+\[u00E6]\(ae	LATIN SMALL LETTER AE
+\[u00E7]\(,c	LATIN SMALL LETTER C WITH CEDILLA
+\[u00E8]\(`e	LATIN SMALL LETTER E WITH GRAVE
+\[u00E9]\('e	LATIN SMALL LETTER E WITH ACUTE
+\[u00EA]\(^e	LATIN SMALL LETTER E WITH CIRCUMFLEX
+\[u00EB]\(:e	LATIN SMALL LETTER E WITH DIAERESIS
+\[u00EC]\(`i	LATIN SMALL LETTER I WITH GRAVE
+\[u00ED]\('i	LATIN SMALL LETTER I WITH ACUTE
+\[u00EE]\(^i	LATIN SMALL LETTER I WITH CIRCUMFLEX
+\[u00EF]\(:i	LATIN SMALL LETTER I WITH DIAERESIS
+\[u00F1]\(~n	LATIN SMALL LETTER N WITH TILDE
+\[u00F2]\(`o	LATIN SMALL LETTER O WITH GRAVE
+\[u00F3]\('o	LATIN SMALL LETTER O WITH ACUTE
+\[u00F4]\(^o	LATIN SMALL LETTER O WITH CIRCUMFLEX
+\[u00F5]\(~o	LATIN SMALL LETTER O WITH TILDE
+\[u00F6]\(:o	LATIN SMALL LETTER O WITH DIAERESIS
+\[u00F7]\(di\[tdi]	DIVISION SIGN
+\[u00F8]\(/o	LATIN SMALL LETTER O WITH STROKE
+\[u00F9]\(`u	LATIN SMALL LETTER U WITH GRAVE
+\[u00FA]\('u	LATIN SMALL LETTER U WITH ACUTE
+\[u00FB]\(^u	LATIN SMALL LETTER U WITH CIRCUMFLEX
+\[u00FC]\(:u	LATIN SMALL LETTER U WITH DIAERESIS
+\[u00FD]	LATIN SMALL LETTER Y WITH ACUTE
+\[u00FF]\(:y	LATIN SMALL LETTER Y WITH DIAERESIS
+ENDTEST
+.fi

Added: vendor/mandoc/dist/regress/char/unicode/latin1.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,98 @@
+CHAR-UNICODE-LATIN1(1)      General Commands Manual     CHAR-UNICODE-LATIN1(1)
+
+
+
+NNAAMMEE
+       char-unicode-latin1 - Unicode characters in the ISO-8859-1 range
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       /c/c   CENT SIGN
+       oxox   CURRENCY SIGN
+       =Y=Y   YEN SIGN
+       ||   BROKEN BAR
+       ""   DIAERESIS
+       (C)(C)    COPYRIGHT SIGN
+       _a_a   FEMININE ORDINAL INDICATOR
+       <<<< LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
+       ~~~  NOT SIGN
+           SOFT HYPHEN
+       (R)(R)    REGISTERED SIGN
+       +-+-+-    PLUS-MINUS SIGN
+       22   SUPERSCRIPT TWO
+       33   SUPERSCRIPT THREE
+       '''  ACUTE ACCENT
+       ,u,u   MICRO SIGN
+       ..   MIDDLE DOT
+       ,,   CEDILLA
+       11   SUPERSCRIPT ONE
+       _o_o   MASCULINE ORDINAL INDICATOR
+       >>>> RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
+       1/41/4    VULGAR FRACTION ONE QUARTER
+       1/21/2    VULGAR FRACTION ONE HALF
+       3/43/4    VULGAR FRACTION THREE QUARTERS
+       `A`A   LATIN CAPITAL LETTER A WITH GRAVE
+       'A'A   LATIN CAPITAL LETTER A WITH ACUTE
+       ^A^A   LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+       ~A~A   LATIN CAPITAL LETTER A WITH TILDE
+       "A"A   LATIN CAPITAL LETTER A WITH DIAERESIS
+       oAoA   LATIN CAPITAL LETTER A WITH RING ABOVE
+       AEAE LATIN CAPITAL LETTER AE
+       ,C,C   LATIN CAPITAL LETTER C WITH CEDILLA
+       `E`E   LATIN CAPITAL LETTER E WITH GRAVE
+       'E'E   LATIN CAPITAL LETTER E WITH ACUTE
+       ^E^E   LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+       "E"E   LATIN CAPITAL LETTER E WITH DIAERESIS
+       `I`I   LATIN CAPITAL LETTER I WITH GRAVE
+       'I'I   LATIN CAPITAL LETTER I WITH ACUTE
+       ^I^I   LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+       "I"I   LATIN CAPITAL LETTER I WITH DIAERESIS
+       -D-D   LATIN CAPITAL LETTER ETH
+       ~N~N   LATIN CAPITAL LETTER N WITH TILDE
+       `O`O   LATIN CAPITAL LETTER O WITH GRAVE
+       'O'O   LATIN CAPITAL LETTER O WITH ACUTE
+       ^O^O   LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+       ~O~O   LATIN CAPITAL LETTER O WITH TILDE
+       "O"O   LATIN CAPITAL LETTER O WITH DIAERESIS
+       xxx  MULTIPLICATION SIGN
+       /O/O   LATIN CAPITAL LETTER O WITH STROKE
+       `U`U   LATIN CAPITAL LETTER U WITH GRAVE
+       'U'U   LATIN CAPITAL LETTER U WITH ACUTE
+       ^U^U   LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+       "U"U   LATIN CAPITAL LETTER U WITH DIAERESIS
+       'Y    LATIN CAPITAL LETTER Y WITH ACUTE
+       `a`a   LATIN SMALL LETTER A WITH GRAVE
+       'a'a   LATIN SMALL LETTER A WITH ACUTE
+       ^a^a   LATIN SMALL LETTER A WITH CIRCUMFLEX
+       ~a~a   LATIN SMALL LETTER A WITH TILDE
+       "a"a   LATIN SMALL LETTER A WITH DIAERESIS
+       oaoa   LATIN SMALL LETTER A WITH RING ABOVE
+       aeae LATIN SMALL LETTER AE
+       ,c,c   LATIN SMALL LETTER C WITH CEDILLA
+       `e`e   LATIN SMALL LETTER E WITH GRAVE
+       'e'e   LATIN SMALL LETTER E WITH ACUTE
+       ^e^e   LATIN SMALL LETTER E WITH CIRCUMFLEX
+       "e"e   LATIN SMALL LETTER E WITH DIAERESIS
+       `i`i   LATIN SMALL LETTER I WITH GRAVE
+       'i'i   LATIN SMALL LETTER I WITH ACUTE
+       ^i^i   LATIN SMALL LETTER I WITH CIRCUMFLEX
+       "i"i   LATIN SMALL LETTER I WITH DIAERESIS
+       ~n~n   LATIN SMALL LETTER N WITH TILDE
+       `o`o   LATIN SMALL LETTER O WITH GRAVE
+       'o'o   LATIN SMALL LETTER O WITH ACUTE
+       ^o^o   LATIN SMALL LETTER O WITH CIRCUMFLEX
+       ~o~o   LATIN SMALL LETTER O WITH TILDE
+       "o"o   LATIN SMALL LETTER O WITH DIAERESIS
+       -:--:--:- DIVISION SIGN
+       /o/o   LATIN SMALL LETTER O WITH STROKE
+       `u`u   LATIN SMALL LETTER U WITH GRAVE
+       'u'u   LATIN SMALL LETTER U WITH ACUTE
+       ^u^u   LATIN SMALL LETTER U WITH CIRCUMFLEX
+       "u"u   LATIN SMALL LETTER U WITH DIAERESIS
+       'y    LATIN SMALL LETTER Y WITH ACUTE
+       "y"y   LATIN SMALL LETTER Y WITH DIAERESIS
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014         CHAR-UNICODE-LATIN1(1)

Added: vendor/mandoc/dist/regress/char/unicode/latin1.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,86 @@
+BEGINTEST
+&#x00A2;&#x00A2;	CENT SIGN
+&#x00A4;&#x00A4;	CURRENCY SIGN
+&#x00A5;&#x00A5;	YEN SIGN
+&#x00A6;&#x00A6;	BROKEN BAR
+&#x00A8;&#x00A8;	DIAERESIS
+&#x00A9;&#x00A9;	COPYRIGHT SIGN
+&#x00AA;&#x00AA;	FEMININE ORDINAL INDICATOR
+&#x00AB;&#x00AB;	LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
+&#x00AC;&#x00AC;&#x00AC;	NOT SIGN
+&#x00AD;    SOFT HYPHEN
+&#x00AE;&#x00AE;	REGISTERED SIGN
+&#x00B1;&#x00B1;&#x00B1;	PLUS-MINUS SIGN
+&#x00B2;&#x00B2;	SUPERSCRIPT TWO
+&#x00B3;&#x00B3;	SUPERSCRIPT THREE
+&#x00B4;&#x00B4;&#x00B4;	ACUTE ACCENT
+&#x00B5;&#x00B5;	MICRO SIGN
+&#x00B7;&#x00B7;	MIDDLE DOT
+&#x00B8;&#x00B8;	CEDILLA
+&#x00B9;&#x00B9;	SUPERSCRIPT ONE
+&#x00BA;&#x00BA;	MASCULINE ORDINAL INDICATOR
+&#x00BB;&#x00BB;	RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
+&#x00BC;&#x00BC;	VULGAR FRACTION ONE QUARTER
+&#x00BD;&#x00BD;	VULGAR FRACTION ONE HALF
+&#x00BE;&#x00BE;	VULGAR FRACTION THREE QUARTERS
+&#x00C0;&#x00C0;	LATIN CAPITAL LETTER A WITH GRAVE
+&#x00C1;&#x00C1;	LATIN CAPITAL LETTER A WITH ACUTE
+&#x00C2;&#x00C2;	LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+&#x00C3;&#x00C3;	LATIN CAPITAL LETTER A WITH TILDE
+&#x00C4;&#x00C4;	LATIN CAPITAL LETTER A WITH DIAERESIS
+&#x00C5;&#x00C5;	LATIN CAPITAL LETTER A WITH RING ABOVE
+&#x00C6;&#x00C6;	LATIN CAPITAL LETTER AE
+&#x00C7;&#x00C7;	LATIN CAPITAL LETTER C WITH CEDILLA
+&#x00C8;&#x00C8;	LATIN CAPITAL LETTER E WITH GRAVE
+&#x00C9;&#x00C9;	LATIN CAPITAL LETTER E WITH ACUTE
+&#x00CA;&#x00CA;	LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+&#x00CB;&#x00CB;	LATIN CAPITAL LETTER E WITH DIAERESIS
+&#x00CC;&#x00CC;	LATIN CAPITAL LETTER I WITH GRAVE
+&#x00CD;&#x00CD;	LATIN CAPITAL LETTER I WITH ACUTE
+&#x00CE;&#x00CE;	LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+&#x00CF;&#x00CF;	LATIN CAPITAL LETTER I WITH DIAERESIS
+&#x00D0;&#x00D0;	LATIN CAPITAL LETTER ETH
+&#x00D1;&#x00D1;	LATIN CAPITAL LETTER N WITH TILDE
+&#x00D2;&#x00D2;	LATIN CAPITAL LETTER O WITH GRAVE
+&#x00D3;&#x00D3;	LATIN CAPITAL LETTER O WITH ACUTE
+&#x00D4;&#x00D4;	LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+&#x00D5;&#x00D5;	LATIN CAPITAL LETTER O WITH TILDE
+&#x00D6;&#x00D6;	LATIN CAPITAL LETTER O WITH DIAERESIS
+&#x00D7;&#x00D7;&#x00D7;	MULTIPLICATION SIGN
+&#x00D8;&#x00D8;	LATIN CAPITAL LETTER O WITH STROKE
+&#x00D9;&#x00D9;	LATIN CAPITAL LETTER U WITH GRAVE
+&#x00DA;&#x00DA;	LATIN CAPITAL LETTER U WITH ACUTE
+&#x00DB;&#x00DB;	LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+&#x00DC;&#x00DC;	LATIN CAPITAL LETTER U WITH DIAERESIS
+&#x00DD;	LATIN CAPITAL LETTER Y WITH ACUTE
+&#x00E0;&#x00E0;	LATIN SMALL LETTER A WITH GRAVE
+&#x00E1;&#x00E1;	LATIN SMALL LETTER A WITH ACUTE
+&#x00E2;&#x00E2;	LATIN SMALL LETTER A WITH CIRCUMFLEX
+&#x00E3;&#x00E3;	LATIN SMALL LETTER A WITH TILDE
+&#x00E4;&#x00E4;	LATIN SMALL LETTER A WITH DIAERESIS
+&#x00E5;&#x00E5;	LATIN SMALL LETTER A WITH RING ABOVE
+&#x00E6;&#x00E6;	LATIN SMALL LETTER AE
+&#x00E7;&#x00E7;	LATIN SMALL LETTER C WITH CEDILLA
+&#x00E8;&#x00E8;	LATIN SMALL LETTER E WITH GRAVE
+&#x00E9;&#x00E9;	LATIN SMALL LETTER E WITH ACUTE
+&#x00EA;&#x00EA;	LATIN SMALL LETTER E WITH CIRCUMFLEX
+&#x00EB;&#x00EB;	LATIN SMALL LETTER E WITH DIAERESIS
+&#x00EC;&#x00EC;	LATIN SMALL LETTER I WITH GRAVE
+&#x00ED;&#x00ED;	LATIN SMALL LETTER I WITH ACUTE
+&#x00EE;&#x00EE;	LATIN SMALL LETTER I WITH CIRCUMFLEX
+&#x00EF;&#x00EF;	LATIN SMALL LETTER I WITH DIAERESIS
+&#x00F1;&#x00F1;	LATIN SMALL LETTER N WITH TILDE
+&#x00F2;&#x00F2;	LATIN SMALL LETTER O WITH GRAVE
+&#x00F3;&#x00F3;	LATIN SMALL LETTER O WITH ACUTE
+&#x00F4;&#x00F4;	LATIN SMALL LETTER O WITH CIRCUMFLEX
+&#x00F5;&#x00F5;	LATIN SMALL LETTER O WITH TILDE
+&#x00F6;&#x00F6;	LATIN SMALL LETTER O WITH DIAERESIS
+&#x00F7;&#x00F7;&#x00F7;	DIVISION SIGN
+&#x00F8;&#x00F8;	LATIN SMALL LETTER O WITH STROKE
+&#x00F9;&#x00F9;	LATIN SMALL LETTER U WITH GRAVE
+&#x00FA;&#x00FA;	LATIN SMALL LETTER U WITH ACUTE
+&#x00FB;&#x00FB;	LATIN SMALL LETTER U WITH CIRCUMFLEX
+&#x00FC;&#x00FC;	LATIN SMALL LETTER U WITH DIAERESIS
+&#x00FD;	LATIN SMALL LETTER Y WITH ACUTE
+&#x00FF;&#x00FF;	LATIN SMALL LETTER Y WITH DIAERESIS
+ENDTEST

Added: vendor/mandoc/dist/regress/char/unicode/latin1.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,98 @@
+CHAR-UNICODE-LATIN1(1)      General Commands Manual     CHAR-UNICODE-LATIN1(1)
+
+
+
+NNAAMMEE
+       char-unicode-latin1 - Unicode characters in the ISO-8859-1 range
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       ¢¢   CENT SIGN
+       ¤¤   CURRENCY SIGN
+       ¥¥   YEN SIGN
+       ¦¦   BROKEN BAR
+       ¨¨   DIAERESIS
+       ©©   COPYRIGHT SIGN
+       ªª   FEMININE ORDINAL INDICATOR
+       ««   LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
+       ¬¬¬  NOT SIGN
+       ­    SOFT HYPHEN
+       ®®   REGISTERED SIGN
+       ±±±  PLUS-MINUS SIGN
+       ²²   SUPERSCRIPT TWO
+       ³³   SUPERSCRIPT THREE
+       ´´´  ACUTE ACCENT
+       µµ   MICRO SIGN
+       ··   MIDDLE DOT
+       ¸¸   CEDILLA
+       ¹¹   SUPERSCRIPT ONE
+       ºº   MASCULINE ORDINAL INDICATOR
+       »»   RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
+       ¼¼   VULGAR FRACTION ONE QUARTER
+       ½½   VULGAR FRACTION ONE HALF
+       ¾¾   VULGAR FRACTION THREE QUARTERS
+       ÀÀ   LATIN CAPITAL LETTER A WITH GRAVE
+       ÁÁ   LATIN CAPITAL LETTER A WITH ACUTE
+       ÂÂ   LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+       ÃÃ   LATIN CAPITAL LETTER A WITH TILDE
+       ÄÄ   LATIN CAPITAL LETTER A WITH DIAERESIS
+       ÅÅ   LATIN CAPITAL LETTER A WITH RING ABOVE
+       ÆÆ   LATIN CAPITAL LETTER AE
+       ÇÇ   LATIN CAPITAL LETTER C WITH CEDILLA
+       ÈÈ   LATIN CAPITAL LETTER E WITH GRAVE
+       ÉÉ   LATIN CAPITAL LETTER E WITH ACUTE
+       ÊÊ   LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+       ËË   LATIN CAPITAL LETTER E WITH DIAERESIS
+       ÌÌ   LATIN CAPITAL LETTER I WITH GRAVE
+       ÍÍ   LATIN CAPITAL LETTER I WITH ACUTE
+       ÎÎ   LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+       ÏÏ   LATIN CAPITAL LETTER I WITH DIAERESIS
+       ÐÐ   LATIN CAPITAL LETTER ETH
+       ÑÑ   LATIN CAPITAL LETTER N WITH TILDE
+       ÒÒ   LATIN CAPITAL LETTER O WITH GRAVE
+       ÓÓ   LATIN CAPITAL LETTER O WITH ACUTE
+       ÔÔ   LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+       ÕÕ   LATIN CAPITAL LETTER O WITH TILDE
+       ÖÖ   LATIN CAPITAL LETTER O WITH DIAERESIS
+       ×××  MULTIPLICATION SIGN
+       ØØ   LATIN CAPITAL LETTER O WITH STROKE
+       ÙÙ   LATIN CAPITAL LETTER U WITH GRAVE
+       ÚÚ   LATIN CAPITAL LETTER U WITH ACUTE
+       ÛÛ   LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+       ÜÜ   LATIN CAPITAL LETTER U WITH DIAERESIS
+       Ý    LATIN CAPITAL LETTER Y WITH ACUTE
+       àà   LATIN SMALL LETTER A WITH GRAVE
+       áá   LATIN SMALL LETTER A WITH ACUTE
+       ââ   LATIN SMALL LETTER A WITH CIRCUMFLEX
+       ãã   LATIN SMALL LETTER A WITH TILDE
+       ää   LATIN SMALL LETTER A WITH DIAERESIS
+       åå   LATIN SMALL LETTER A WITH RING ABOVE
+       ææ   LATIN SMALL LETTER AE
+       çç   LATIN SMALL LETTER C WITH CEDILLA
+       èè   LATIN SMALL LETTER E WITH GRAVE
+       éé   LATIN SMALL LETTER E WITH ACUTE
+       êê   LATIN SMALL LETTER E WITH CIRCUMFLEX
+       ëë   LATIN SMALL LETTER E WITH DIAERESIS
+       ìì   LATIN SMALL LETTER I WITH GRAVE
+       íí   LATIN SMALL LETTER I WITH ACUTE
+       îî   LATIN SMALL LETTER I WITH CIRCUMFLEX
+       ïï   LATIN SMALL LETTER I WITH DIAERESIS
+       ññ   LATIN SMALL LETTER N WITH TILDE
+       òò   LATIN SMALL LETTER O WITH GRAVE
+       óó   LATIN SMALL LETTER O WITH ACUTE
+       ôô   LATIN SMALL LETTER O WITH CIRCUMFLEX
+       õõ   LATIN SMALL LETTER O WITH TILDE
+       öö   LATIN SMALL LETTER O WITH DIAERESIS
+       ÷÷÷  DIVISION SIGN
+       øø   LATIN SMALL LETTER O WITH STROKE
+       ùù   LATIN SMALL LETTER U WITH GRAVE
+       úú   LATIN SMALL LETTER U WITH ACUTE
+       ûû   LATIN SMALL LETTER U WITH CIRCUMFLEX
+       üü   LATIN SMALL LETTER U WITH DIAERESIS
+       ý    LATIN SMALL LETTER Y WITH ACUTE
+       ÿÿ   LATIN SMALL LETTER Y WITH DIAERESIS
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014         CHAR-UNICODE-LATIN1(1)

Added: vendor/mandoc/dist/regress/char/unicode/latin1diff.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1diff.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1diff.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: latin1diff.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-UNICODE-LATIN1DIFF 1 "October 27, 2014"
+.SH NAME
+char-unicode-latin1diff \- Unicode characters in the ISO-8859-1 range
+.SH DESCRIPTION
+.nf
+BEGINTEST
+\[u00A1]\(r!	INVERTED EXCLAMATION MARK
+\[u00A3]\(Po	POUND SIGN
+\[u00A7]\(sc	SECTION SIGN
+\[u00AF]\(a-	MACRON
+\[u00B0]\(de	DEGREE SIGN
+\[u00B6]\(ps	PILCROW SIGN
+\[u00BF]\(r?	INVERTED QUESTION MARK
+\[u00DE]\(TP	LATIN CAPITAL LETTER THORN
+\[u00DF]\(ss	LATIN SMALL LETTER SHARP S
+\[u00F0]\(Sd	LATIN SMALL LETTER ETH
+\[u00FE]\(Tp	LATIN SMALL LETTER THORN
+ENDTEST
+.fi

Added: vendor/mandoc/dist/regress/char/unicode/latin1diff.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1diff.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1diff.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+CHAR-UNICODE-LATIN1DIFF(1)  General Commands Manual CHAR-UNICODE-LATIN1DIFF(1)
+
+
+
+NNAAMMEE
+       char-unicode-latin1diff - Unicode characters in the ISO-8859-1 range
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       !!   INVERTED EXCLAMATION MARK
+       GBPGBP    POUND SIGN
+       <sec><sec>     SECTION SIGN
+       --   MACRON
+       <deg><deg>     DEGREE SIGN
+       <par><par>     PILCROW SIGN
+       ??   INVERTED QUESTION MARK
+       ThTh LATIN CAPITAL LETTER THORN
+       ssss LATIN SMALL LETTER SHARP S
+       dd   LATIN SMALL LETTER ETH
+       thth LATIN SMALL LETTER THORN
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014     CHAR-UNICODE-LATIN1DIFF(1)

Added: vendor/mandoc/dist/regress/char/unicode/latin1diff.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1diff.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1diff.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+BEGINTEST
+&#x00A1;&#x00A1;	INVERTED EXCLAMATION MARK
+&#x00A3;&#x00A3;	POUND SIGN
+&#x00A7;&#x00A7;	SECTION SIGN
+&#x00AF;&#x00AF;	MACRON
+&#x00B0;&#x00B0;	DEGREE SIGN
+&#x00B6;&#x00B6;	PILCROW SIGN
+&#x00BF;&#x00BF;	INVERTED QUESTION MARK
+&#x00DE;&#x00DE;	LATIN CAPITAL LETTER THORN
+&#x00DF;&#x00DF;	LATIN SMALL LETTER SHARP S
+&#x00F0;&#x00F0;	LATIN SMALL LETTER ETH
+&#x00FE;&#x00FE;	LATIN SMALL LETTER THORN
+ENDTEST

Added: vendor/mandoc/dist/regress/char/unicode/latin1diff.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/latin1diff.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/latin1diff.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+CHAR-UNICODE-LATIN1DIFF(1)  General Commands Manual CHAR-UNICODE-LATIN1DIFF(1)
+
+
+
+NNAAMMEE
+       char-unicode-latin1diff - Unicode characters in the ISO-8859-1 range
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       ¡¡   INVERTED EXCLAMATION MARK
+       ££   POUND SIGN
+       §§   SECTION SIGN
+       ¯¯   MACRON
+       °°   DEGREE SIGN
+       ¶¶   PILCROW SIGN
+       ¿¿   INVERTED QUESTION MARK
+       ÞÞ   LATIN CAPITAL LETTER THORN
+       ßß   LATIN SMALL LETTER SHARP S
+       ðð   LATIN SMALL LETTER ETH
+       þþ   LATIN SMALL LETTER THORN
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014     CHAR-UNICODE-LATIN1DIFF(1)

Added: vendor/mandoc/dist/regress/char/unicode/man.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: man.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-UNICODE-MAN 1 "October 13, 2014"
+.SH NAME
+char-unicode-mdoc \- unicode characters in man code
+.SH DESCRIPTION
+Copyright symbol: \[u00A9] = \C'u00A9'
+.PP
+m-dash: \[u2014] = \C'u2014'
+.PP
+nabla: \[u1D6C1] = \C'u1D6C1'
+.PP
+not really Unicode:
+up arrows: \(ua\(uA = \[ua]\[uA] = \C'ua'\C'uA'

Added: vendor/mandoc/dist/regress/char/unicode/man.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/man.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/man.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+CHAR-UNICODE-MAN(1)         General Commands Manual        CHAR-UNICODE-MAN(1)
+
+
+
+NNAAMMEE
+       char-unicode-mdoc - unicode characters in man code
+
+DDEESSCCRRIIPPTTIIOONN
+       Copyright symbol: © = ©
+
+       m-dash: — = —
+
+       nabla: 𝛁 = 𝛁
+
+       not really Unicode: up arrows: ↑⇑ = ↑⇑ = ↑⇑
+
+
+
+OpenBSD                        October 13, 2014            CHAR-UNICODE-MAN(1)

Added: vendor/mandoc/dist/regress/char/unicode/mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: mdoc.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CHAR-UNICODE-MDOC 1
+.Os
+.Sh NAME
+.Nm char-unicode-mdoc
+.Nd unicode characters in mdoc code
+.Sh DESCRIPTION
+Copyright symbol: \[u00A9] = \C'u00A9'
+.Pp
+m-dash: \[u2014] = \C'u2014'
+.Pp
+nabla: \[u1D6C1] = \C'u1D6C1'
+.Pp
+not really Unicode:
+up arrows: \(ua\(uA = \[ua]\[uA] = \C'ua'\C'uA'

Added: vendor/mandoc/dist/regress/char/unicode/mdoc.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/mdoc.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/mdoc.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+CHAR-UNICODE-MDOC(1)        General Commands Manual       CHAR-UNICODE-MDOC(1)
+
+NNAAMMEE
+     cchhaarr--uunniiccooddee--mmddoocc – unicode characters in mdoc code
+
+DDEESSCCRRIIPPTTIIOONN
+     Copyright symbol: © = ©
+
+     m-dash: — = —
+
+     nabla: 𝛁 = 𝛁
+
+     not really Unicode: up arrows: ↑⇑ = ↑⇑ = ↑⇑
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/char/unicode/named.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/named.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/named.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,161 @@
+.\" $OpenBSD: named.in,v 1.7 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-UNICODE-NAMED 1 "October 27, 2014"
+.SH NAME
+char-unicode-named \- Unicode characters having named escapes
+.SH DESCRIPTION
+.nf
+BEGINTEST
+\[u0131]\(.i	LATIN SMALL LETTER DOTLESS I
+\[u0132]\(IJ	LATIN CAPITAL LIGATURE IJ
+\[u0133]\(ij	LATIN SMALL LIGATURE IJ
+\[u0141]\(/L	LATIN CAPITAL LETTER L WITH STROKE
+\[u0142]\(/l	LATIN SMALL LETTER L WITH STROKE
+\[u0152]\(OE	LATIN CAPITAL LIGATURE OE
+\[u0153]\(oe	LATIN SMALL LIGATURE OE
+\[u0192]\(Fn	LATIN SMALL LETTER F WITH HOOK
+\[u02C7]\(ah	CARON
+\[u02D8]\(ab	BREVE
+\[u02DA]\(ao	RING ABOVE
+\[u02DB]\(ho	OGONEK
+\[u02DD]\(a"	DOUBLE ACUTE ACCENT
+\[u0391]\(*A	GREEK CAPITAL LETTER ALPHA
+\[u0392]\(*B	GREEK CAPITAL LETTER BETA
+\[u0394]\(*D	GREEK CAPITAL LETTER DELTA
+\[u0395]\(*E	GREEK CAPITAL LETTER EPSILON
+\[u0396]\(*Z	GREEK CAPITAL LETTER ZETA
+\[u0397]\(*Y	GREEK CAPITAL LETTER ETA
+\[u0398]\(*H	GREEK CAPITAL LETTER THETA
+\[u0399]\(*I	GREEK CAPITAL LETTER IOTA
+\[u039A]\(*K	GREEK CAPITAL LETTER KAPPA
+\[u039B]\(*L	GREEK CAPITAL LETTER LAMDA
+\[u039C]\(*M	GREEK CAPITAL LETTER MU
+\[u039D]\(*N	GREEK CAPITAL LETTER NU
+\[u039E]\(*C	GREEK CAPITAL LETTER XI
+\[u039F]\(*O	GREEK CAPITAL LETTER OMICRON
+\[u03A0]\(*P	GREEK CAPITAL LETTER PI
+\[u03A1]\(*R	GREEK CAPITAL LETTER RHO
+\[u03A4]\(*T	GREEK CAPITAL LETTER TAU
+\[u03A5]\(*U	GREEK CAPITAL LETTER UPSILON
+\[u03A6]\(*F	GREEK CAPITAL LETTER PHI
+\[u03A7]\(*X	GREEK CAPITAL LETTER CHI
+\[u03A8]\(*Q	GREEK CAPITAL LETTER PSI
+\[u03A9]\(*W	GREEK CAPITAL LETTER OMEGA
+\[u03B1]\(*a	GREEK SMALL LETTER ALPHA
+\[u03B2]\(*b	GREEK SMALL LETTER BETA
+\[u03B3]\(*g	GREEK SMALL LETTER GAMMA
+\[u03B4]\(*d	GREEK SMALL LETTER DELTA
+\[u03B5]\(*e	GREEK SMALL LETTER EPSILON
+\[u03B6]\(*z	GREEK SMALL LETTER ZETA
+\[u03B7]\(*y	GREEK SMALL LETTER ETA
+\[u03B8]\(*h	GREEK SMALL LETTER THETA
+\[u03B9]\(*i	GREEK SMALL LETTER IOTA
+\[u03BA]\(*k	GREEK SMALL LETTER KAPPA
+\[u03BB]\(*l	GREEK SMALL LETTER LAMDA
+\[u03BC]\(*m	GREEK SMALL LETTER MU
+\[u03BD]\(*n	GREEK SMALL LETTER NU
+\[u03BE]\(*c	GREEK SMALL LETTER XI
+\[u03BF]\(*o	GREEK SMALL LETTER OMICRON
+\[u03C0]\(*p	GREEK SMALL LETTER PI
+\[u03C1]\(*r	GREEK SMALL LETTER RHO
+\[u03C2]\(ts	GREEK SMALL LETTER FINAL SIGMA
+\[u03C3]\(*s	GREEK SMALL LETTER SIGMA
+\[u03C4]\(*t	GREEK SMALL LETTER TAU
+\[u03C5]\(*u	GREEK SMALL LETTER UPSILON
+\[u03C6]\(+f	GREEK SMALL LETTER PHI
+\[u03C7]\(*x	GREEK SMALL LETTER CHI
+\[u03C8]\(*q	GREEK SMALL LETTER PSI
+\[u03C9]\(*w	GREEK SMALL LETTER OMEGA
+\[u03D1]\(+h	GREEK THETA SYMBOL
+\[u03D5]\(*f	GREEK PHI SYMBOL
+\[u03D6]\(+p	GREEK PI SYMBOL
+\[u03F5]\(+e	GREEK LUNATE EPSILON SYMBOL
+\[u2010]\(hy	HYPHEN
+\[u2013]\(en	EN DASH
+\[u2014]\(em	EM DASH
+\[u2018]\(oq	LEFT SINGLE QUOTATION MARK
+\[u2019]\(cq	RIGHT SINGLE QUOTATION MARK
+\[u201A]\(bq	SINGLE LOW-9 QUOTATION MARK
+\[u201C]\(lq	LEFT DOUBLE QUOTATION MARK
+\[u201D]\(rq	RIGHT DOUBLE QUOTATION MARK
+\[u201E]\(Bq	DOUBLE LOW-9 QUOTATION MARK
+\[u2020]\(dg	DAGGER
+\[u2021]\(dd	DOUBLE DAGGER
+\[u2022]\(bu	BULLET
+\[u2030]\(%0	PER MILLE SIGN
+\[u2032]\(fm	PRIME
+\[u2033]\(sd	DOUBLE PRIME
+\[u2039]\(fo	SINGLE LEFT-POINTING ANGLE QUOTATION MARK
+\[u203A]\(fc	SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
+\[u2044]\(f/	FRACTION SLASH
+\[u20AC]\(Eu\(eu	EURO SIGN
+\[u2111]\(Im	BLACK-LETTER CAPITAL I
+\[u211C]\(Re	BLACK-LETTER CAPITAL R
+\[u2122]\(tm	TRADE MARK SIGN
+\[u2135]\(Ah	ALEF SYMBOL
+\[u215B]\(18	VULGAR FRACTION ONE EIGHTH
+\[u215C]\(38	VULGAR FRACTION THREE EIGHTHS
+\[u215D]\(58	VULGAR FRACTION FIVE EIGHTHS
+\[u215E]\(78	VULGAR FRACTION SEVEN EIGHTHS
+\[u2190]\(<-	LEFTWARDS ARROW
+\[u2191]\(ua	UPWARDS ARROW
+\[u2192]\(->	RIGHTWARDS ARROW
+\[u2193]\(da	DOWNWARDS ARROW
+\[u2194]\(<>	LEFT RIGHT ARROW
+\[u21B5]\(CR	DOWNWARDS ARROW WITH CORNER LEFTWARDS
+\[u21D0]\(lA	LEFTWARDS DOUBLE ARROW
+\[u21D1]\(uA	UPWARDS DOUBLE ARROW
+\[u21D2]\(rA	RIGHTWARDS DOUBLE ARROW
+\[u21D3]\(dA	DOWNWARDS DOUBLE ARROW
+\[u21D4]\(hA	LEFT RIGHT DOUBLE ARROW
+\[u2200]\(fa	FOR ALL
+\[u2202]\(pd	PARTIAL DIFFERENTIAL
+\[u2203]\(te	THERE EXISTS
+\[u2205]\(es	EMPTY SET
+\[u2208]\(mo	ELEMENT OF
+\[u220B]\(st	CONTAINS AS MEMBER
+\[u2212]\(mi	MINUS SIGN
+\[u2213]\(-+	MINUS-OR-PLUS SIGN
+\[u2217]\(**	ASTERISK OPERATOR
+\[u221A]\(sr	SQUARE ROOT
+\[u221D]\(pt	PROPORTIONAL TO
+\[u221E]\(if	INFINITY
+\[u2220]\(/_	ANGLE
+\[u2227]\(AN	LOGICAL AND
+\[u2228]\(OR	LOGICAL OR
+\[u2229]\(ca	INTERSECTION
+\[u222A]\(cu	UNION
+\[u222B]\(is	INTEGRAL
+\[u2234]\(tf\(3d	THEREFORE
+\[u223C]\(ap	TILDE OPERATOR
+\[u2243]\(|=	ASYMPTOTICALLY EQUAL TO
+\[u2245]\(=~	APPROXIMATELY EQUAL TO
+\[u2248]\(~~\(~=	ALMOST EQUAL TO
+\[u2260]\(!=	NOT EQUAL TO
+\[u2261]\(==	IDENTICAL TO
+\[u2262]\(ne	NOT IDENTICAL TO
+\[u2264]\(<=	LESS-THAN OR EQUAL TO
+\[u2265]\(>=	GREATER-THAN OR EQUAL TO
+\[u2282]\(sb	SUBSET OF
+\[u2283]\(sp	SUPERSET OF
+\[u2286]\(ib	SUBSET OF OR EQUAL TO
+\[u2287]\(ip	SUPERSET OF OR EQUAL TO
+\[u2295]\(c+	CIRCLED PLUS
+\[u2297]\(c*	CIRCLED TIMES
+\[u22A5]\(pp	UP TACK
+\[u22C5]\(md	DOT OPERATOR
+\[u2308]\(lc	LEFT CEILING
+\[u2309]\(rc	RIGHT CEILING
+\[u230A]\(lf	LEFT FLOOR
+\[u230B]\(rf	RIGHT FLOOR
+\[u23AA]\(bv	CURLY BRACKET EXTENSION
+\[u23AF]\(an	HORIZONTAL LINE EXTENSION
+\[u2502]\(br	BOX DRAWINGS LIGHT VERTICAL
+\[u25A1]\(sq	WHITE SQUARE
+\[u25CA]\(lz	LOZENGE
+\[u25CB]\(ci	WHITE CIRCLE
+\[u261C]\(lh	WHITE LEFT POINTING INDEX
+\[u261E]\(rh	WHITE RIGHT POINTING INDEX
+\[u27E8]\(la	MATHEMATICAL LEFT ANGLE BRACKET
+\[u27E9]\(ra	MATHEMATICAL RIGHT ANGLE BRACKET
+ENDTEST
+.fi

Added: vendor/mandoc/dist/regress/char/unicode/named.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/named.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/named.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,166 @@
+CHAR-UNICODE-NAMED(1)       General Commands Manual      CHAR-UNICODE-NAMED(1)
+
+
+
+NNAAMMEE
+       char-unicode-named - Unicode characters having named escapes
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       ii   LATIN SMALL LETTER DOTLESS I
+       IJIJ LATIN CAPITAL LIGATURE IJ
+       ijij LATIN SMALL LIGATURE IJ
+       /L/L   LATIN CAPITAL LETTER L WITH STROKE
+       /l/l   LATIN SMALL LETTER L WITH STROKE
+       OEOE LATIN CAPITAL LIGATURE OE
+       oeoe LATIN SMALL LIGATURE OE
+       ,f,f   LATIN SMALL LETTER F WITH HOOK
+       vv   CARON
+       '`'`   BREVE
+       oo   RING ABOVE
+       ,,   OGONEK
+       ""   DOUBLE ACUTE ACCENT
+       AA   GREEK CAPITAL LETTER ALPHA
+       BB   GREEK CAPITAL LETTER BETA
+       _/_\_/_\ GREEK CAPITAL LETTER DELTA
+       EE   GREEK CAPITAL LETTER EPSILON
+       ZZ   GREEK CAPITAL LETTER ZETA
+       HH   GREEK CAPITAL LETTER ETA
+       -O-O   GREEK CAPITAL LETTER THETA
+       II   GREEK CAPITAL LETTER IOTA
+       KK   GREEK CAPITAL LETTER KAPPA
+       /\/\ GREEK CAPITAL LETTER LAMDA
+       MM   GREEK CAPITAL LETTER MU
+       NN   GREEK CAPITAL LETTER NU
+       _H_H   GREEK CAPITAL LETTER XI
+       OO   GREEK CAPITAL LETTER OMICRON
+       TTTT GREEK CAPITAL LETTER PI
+       PP   GREEK CAPITAL LETTER RHO
+       TT   GREEK CAPITAL LETTER TAU
+       YY   GREEK CAPITAL LETTER UPSILON
+       IOIO   GREEK CAPITAL LETTER PHI
+       XX   GREEK CAPITAL LETTER CHI
+       IYIY   GREEK CAPITAL LETTER PSI
+       _O_O   GREEK CAPITAL LETTER OMEGA
+       aa   GREEK SMALL LETTER ALPHA
+       BB   GREEK SMALL LETTER BETA
+       yy   GREEK SMALL LETTER GAMMA
+       dd   GREEK SMALL LETTER DELTA
+       ee   GREEK SMALL LETTER EPSILON
+       ,C,C   GREEK SMALL LETTER ZETA
+       nn   GREEK SMALL LETTER ETA
+       -0-0   GREEK SMALL LETTER THETA
+       ii   GREEK SMALL LETTER IOTA
+       kk   GREEK SMALL LETTER KAPPA
+       >\>\   GREEK SMALL LETTER LAMDA
+       ,u,u   GREEK SMALL LETTER MU
+       vv   GREEK SMALL LETTER NU
+       ,E,E   GREEK SMALL LETTER XI
+       oo   GREEK SMALL LETTER OMICRON
+       -n-n   GREEK SMALL LETTER PI
+       pp   GREEK SMALL LETTER RHO
+       ss   GREEK SMALL LETTER FINAL SIGMA
+       -o-o   GREEK SMALL LETTER SIGMA
+       ~t~t   GREEK SMALL LETTER TAU
+       uu   GREEK SMALL LETTER UPSILON
+       |o|o   GREEK SMALL LETTER PHI
+       xx   GREEK SMALL LETTER CHI
+       |u|u   GREEK SMALL LETTER PSI
+       ww   GREEK SMALL LETTER OMEGA
+       -0-0   GREEK THETA SYMBOL
+       |o|o   GREEK PHI SYMBOL
+       -w-w   GREEK PI SYMBOL
+       ee   GREEK LUNATE EPSILON SYMBOL
+       --   HYPHEN
+       --   EN DASH
+       ---- EM DASH
+       ``   LEFT SINGLE QUOTATION MARK
+       ''   RIGHT SINGLE QUOTATION MARK
+       ,,   SINGLE LOW-9 QUOTATION MARK
+       ""   LEFT DOUBLE QUOTATION MARK
+       ""   RIGHT DOUBLE QUOTATION MARK
+       ,,,, DOUBLE LOW-9 QUOTATION MARK
+       |-|-   DAGGER
+       |=|=   DOUBLE DAGGER
+       +o+o   BULLET
+       %o%o PER MILLE SIGN
+       ''   PRIME
+       '''' DOUBLE PRIME
+       <<   SINGLE LEFT-POINTING ANGLE QUOTATION MARK
+       >>   SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
+       //   FRACTION SLASH
+       EUREUREUR EURO SIGN
+       II   BLACK-LETTER CAPITAL I
+       RR   BLACK-LETTER CAPITAL R
+       tmtm TRADE MARK SIGN
+       NN   ALEF SYMBOL
+       1/81/8    VULGAR FRACTION ONE EIGHTH
+       3/83/8    VULGAR FRACTION THREE EIGHTHS
+       5/85/8    VULGAR FRACTION FIVE EIGHTHS
+       7/87/8    VULGAR FRACTION SEVEN EIGHTHS
+       <-<- LEFTWARDS ARROW
+       |^|^   UPWARDS ARROW
+       ->-> RIGHTWARDS ARROW
+       |v|v   DOWNWARDS ARROW
+       <-><->    LEFT RIGHT ARROW
+       _|_| DOWNWARDS ARROW WITH CORNER LEFTWARDS
+       <=<= LEFTWARDS DOUBLE ARROW
+       =^=^   UPWARDS DOUBLE ARROW
+       =>=> RIGHTWARDS DOUBLE ARROW
+       =v=v   DOWNWARDS DOUBLE ARROW
+       <=><=>    LEFT RIGHT DOUBLE ARROW
+       -V-V   FOR ALL
+       aa   PARTIAL DIFFERENTIAL
+       33   THERE EXISTS
+       {}{} EMPTY SET
+       EE   ELEMENT OF
+       -)-) CONTAINS AS MEMBER
+       --   MINUS SIGN
+       -+-+ MINUS-OR-PLUS SIGN
+       **   ASTERISK OPERATOR
+       \/\/ SQUARE ROOT
+       ococ PROPORTIONAL TO
+       oooo INFINITY
+       _/_/   ANGLE
+       ^^   LOGICAL AND
+       vv   LOGICAL OR
+       (^)(^)    INTERSECTION
+       UU   UNION
+       ',I',I   INTEGRAL
+       .:..:..:. THEREFORE
+       ~~   TILDE OPERATOR
+       -~-~ ASYMPTOTICALLY EQUAL TO
+       =~=~ APPROXIMATELY EQUAL TO
+       ~~~~~=    ALMOST EQUAL TO
+       !=!= NOT EQUAL TO
+       ==== IDENTICAL TO
+       !==!==    NOT IDENTICAL TO
+       <=<= LESS-THAN OR EQUAL TO
+       >=>= GREATER-THAN OR EQUAL TO
+       (=(= SUBSET OF
+       =)=) SUPERSET OF
+       (=_(=_ SUBSET OF OR EQUAL TO
+       =_)=_) SUPERSET OF OR EQUAL TO
+       O+O+   CIRCLED PLUS
+       OxOx   CIRCLED TIMES
+       _|_|   UP TACK
+       ..   DOT OPERATOR
+       |~|~ LEFT CEILING
+       ~|~| RIGHT CEILING
+       |_|_ LEFT FLOOR
+       _|_| RIGHT FLOOR
+       ||   CURLY BRACKET EXTENSION
+       --   HORIZONTAL LINE EXTENSION
+       ||   BOX DRAWINGS LIGHT VERTICAL
+       [][] WHITE SQUARE
+       <><> LOZENGE
+       OO   WHITE CIRCLE
+       <=<= WHITE LEFT POINTING INDEX
+       =>=> WHITE RIGHT POINTING INDEX
+       <<   MATHEMATICAL LEFT ANGLE BRACKET
+       >>   MATHEMATICAL RIGHT ANGLE BRACKET
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014          CHAR-UNICODE-NAMED(1)

Added: vendor/mandoc/dist/regress/char/unicode/named.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/named.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/named.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,154 @@
+BEGINTEST
+&#x0131;&#x0131;	LATIN SMALL LETTER DOTLESS I
+&#x0132;&#x0132;	LATIN CAPITAL LIGATURE IJ
+&#x0133;&#x0133;	LATIN SMALL LIGATURE IJ
+&#x0141;&#x0141;	LATIN CAPITAL LETTER L WITH STROKE
+&#x0142;&#x0142;	LATIN SMALL LETTER L WITH STROKE
+&#x0152;&#x0152;	LATIN CAPITAL LIGATURE OE
+&#x0153;&#x0153;	LATIN SMALL LIGATURE OE
+&#x0192;&#x0192;	LATIN SMALL LETTER F WITH HOOK
+&#x02C7;&#x02C7;	CARON
+&#x02D8;&#x02D8;	BREVE
+&#x02DA;&#x02DA;	RING ABOVE
+&#x02DB;&#x02DB;	OGONEK
+&#x02DD;&#x02DD;	DOUBLE ACUTE ACCENT
+&#x0391;&#x0391;	GREEK CAPITAL LETTER ALPHA
+&#x0392;&#x0392;	GREEK CAPITAL LETTER BETA
+&#x0394;&#x0394;	GREEK CAPITAL LETTER DELTA
+&#x0395;&#x0395;	GREEK CAPITAL LETTER EPSILON
+&#x0396;&#x0396;	GREEK CAPITAL LETTER ZETA
+&#x0397;&#x0397;	GREEK CAPITAL LETTER ETA
+&#x0398;&#x0398;	GREEK CAPITAL LETTER THETA
+&#x0399;&#x0399;	GREEK CAPITAL LETTER IOTA
+&#x039A;&#x039A;	GREEK CAPITAL LETTER KAPPA
+&#x039B;&#x039B;	GREEK CAPITAL LETTER LAMDA
+&#x039C;&#x039C;	GREEK CAPITAL LETTER MU
+&#x039D;&#x039D;	GREEK CAPITAL LETTER NU
+&#x039E;&#x039E;	GREEK CAPITAL LETTER XI
+&#x039F;&#x039F;	GREEK CAPITAL LETTER OMICRON
+&#x03A0;&#x03A0;	GREEK CAPITAL LETTER PI
+&#x03A1;&#x03A1;	GREEK CAPITAL LETTER RHO
+&#x03A4;&#x03A4;	GREEK CAPITAL LETTER TAU
+&#x03A5;&#x03A5;	GREEK CAPITAL LETTER UPSILON
+&#x03A6;&#x03A6;	GREEK CAPITAL LETTER PHI
+&#x03A7;&#x03A7;	GREEK CAPITAL LETTER CHI
+&#x03A8;&#x03A8;	GREEK CAPITAL LETTER PSI
+&#x03A9;&#x03A9;	GREEK CAPITAL LETTER OMEGA
+&#x03B1;&#x03B1;	GREEK SMALL LETTER ALPHA
+&#x03B2;&#x03B2;	GREEK SMALL LETTER BETA
+&#x03B3;&#x03B3;	GREEK SMALL LETTER GAMMA
+&#x03B4;&#x03B4;	GREEK SMALL LETTER DELTA
+&#x03B5;&#x03B5;	GREEK SMALL LETTER EPSILON
+&#x03B6;&#x03B6;	GREEK SMALL LETTER ZETA
+&#x03B7;&#x03B7;	GREEK SMALL LETTER ETA
+&#x03B8;&#x03B8;	GREEK SMALL LETTER THETA
+&#x03B9;&#x03B9;	GREEK SMALL LETTER IOTA
+&#x03BA;&#x03BA;	GREEK SMALL LETTER KAPPA
+&#x03BB;&#x03BB;	GREEK SMALL LETTER LAMDA
+&#x03BC;&#x03BC;	GREEK SMALL LETTER MU
+&#x03BD;&#x03BD;	GREEK SMALL LETTER NU
+&#x03BE;&#x03BE;	GREEK SMALL LETTER XI
+&#x03BF;&#x03BF;	GREEK SMALL LETTER OMICRON
+&#x03C0;&#x03C0;	GREEK SMALL LETTER PI
+&#x03C1;&#x03C1;	GREEK SMALL LETTER RHO
+&#x03C2;&#x03C2;	GREEK SMALL LETTER FINAL SIGMA
+&#x03C3;&#x03C3;	GREEK SMALL LETTER SIGMA
+&#x03C4;&#x03C4;	GREEK SMALL LETTER TAU
+&#x03C5;&#x03C5;	GREEK SMALL LETTER UPSILON
+&#x03C6;&#x03C6;	GREEK SMALL LETTER PHI
+&#x03C7;&#x03C7;	GREEK SMALL LETTER CHI
+&#x03C8;&#x03C8;	GREEK SMALL LETTER PSI
+&#x03C9;&#x03C9;	GREEK SMALL LETTER OMEGA
+&#x03D1;&#x03D1;	GREEK THETA SYMBOL
+&#x03D5;&#x03D5;	GREEK PHI SYMBOL
+&#x03D6;&#x03D6;	GREEK PI SYMBOL
+&#x03F5;&#x03F5;	GREEK LUNATE EPSILON SYMBOL
+&#x2010;&#x2010;	HYPHEN
+&#x2013;&#x2013;	EN DASH
+&#x2014;&#x2014;	EM DASH
+&#x2018;&#x2018;	LEFT SINGLE QUOTATION MARK
+&#x2019;&#x2019;	RIGHT SINGLE QUOTATION MARK
+&#x201A;&#x201A;	SINGLE LOW-9 QUOTATION MARK
+&#x201C;&#x201C;	LEFT DOUBLE QUOTATION MARK
+&#x201D;&#x201D;	RIGHT DOUBLE QUOTATION MARK
+&#x201E;&#x201E;	DOUBLE LOW-9 QUOTATION MARK
+&#x2020;&#x2020;	DAGGER
+&#x2021;&#x2021;	DOUBLE DAGGER
+&#x2022;&#x2022;	BULLET
+&#x2030;&#x2030;	PER MILLE SIGN
+&#x2032;&#x2032;	PRIME
+&#x2033;&#x2033;	DOUBLE PRIME
+&#x2039;&#x2039;	SINGLE LEFT-POINTING ANGLE QUOTATION MARK
+&#x203A;&#x203A;	SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
+&#x2044;&#x2044;	FRACTION SLASH
+&#x20AC;&#x20AC;&#x20AC;	EURO SIGN
+&#x2111;&#x2111;	BLACK-LETTER CAPITAL I
+&#x211C;&#x211C;	BLACK-LETTER CAPITAL R
+&#x2122;&#x2122;	TRADE MARK SIGN
+&#x2135;&#x2135;	ALEF SYMBOL
+&#x215B;&#x215B;	VULGAR FRACTION ONE EIGHTH
+&#x215C;&#x215C;	VULGAR FRACTION THREE EIGHTHS
+&#x215D;&#x215D;	VULGAR FRACTION FIVE EIGHTHS
+&#x215E;&#x215E;	VULGAR FRACTION SEVEN EIGHTHS
+&#x2190;&#x2190;	LEFTWARDS ARROW
+&#x2191;&#x2191;	UPWARDS ARROW
+&#x2192;&#x2192;	RIGHTWARDS ARROW
+&#x2193;&#x2193;	DOWNWARDS ARROW
+&#x2194;&#x2194;	LEFT RIGHT ARROW
+&#x21B5;&#x21B5;	DOWNWARDS ARROW WITH CORNER LEFTWARDS
+&#x21D0;&#x21D0;	LEFTWARDS DOUBLE ARROW
+&#x21D1;&#x21D1;	UPWARDS DOUBLE ARROW
+&#x21D2;&#x21D2;	RIGHTWARDS DOUBLE ARROW
+&#x21D3;&#x21D3;	DOWNWARDS DOUBLE ARROW
+&#x21D4;&#x21D4;	LEFT RIGHT DOUBLE ARROW
+&#x2200;&#x2200;	FOR ALL
+&#x2202;&#x2202;	PARTIAL DIFFERENTIAL
+&#x2203;&#x2203;	THERE EXISTS
+&#x2205;&#x2205;	EMPTY SET
+&#x2208;&#x2208;	ELEMENT OF
+&#x220B;&#x220B;	CONTAINS AS MEMBER
+&#x2212;&#x2212;	MINUS SIGN
+&#x2213;&#x2213;	MINUS-OR-PLUS SIGN
+&#x2217;&#x2217;	ASTERISK OPERATOR
+&#x221A;&#x221A;	SQUARE ROOT
+&#x221D;&#x221D;	PROPORTIONAL TO
+&#x221E;&#x221E;	INFINITY
+&#x2220;&#x2220;	ANGLE
+&#x2227;&#x2227;	LOGICAL AND
+&#x2228;&#x2228;	LOGICAL OR
+&#x2229;&#x2229;	INTERSECTION
+&#x222A;&#x222A;	UNION
+&#x222B;&#x222B;	INTEGRAL
+&#x2234;&#x2234;&#x2234;	THEREFORE
+&#x223C;&#x223C;	TILDE OPERATOR
+&#x2243;&#x2243;	ASYMPTOTICALLY EQUAL TO
+&#x2245;&#x2245;	APPROXIMATELY EQUAL TO
+&#x2248;&#x2248;&#x2248;	ALMOST EQUAL TO
+&#x2260;&#x2260;	NOT EQUAL TO
+&#x2261;&#x2261;	IDENTICAL TO
+&#x2262;&#x2262;	NOT IDENTICAL TO
+&#x2264;&#x2264;	LESS-THAN OR EQUAL TO
+&#x2265;&#x2265;	GREATER-THAN OR EQUAL TO
+&#x2282;&#x2282;	SUBSET OF
+&#x2283;&#x2283;	SUPERSET OF
+&#x2286;&#x2286;	SUBSET OF OR EQUAL TO
+&#x2287;&#x2287;	SUPERSET OF OR EQUAL TO
+&#x2295;&#x2295;	CIRCLED PLUS
+&#x2297;&#x2297;	CIRCLED TIMES
+&#x22A5;&#x22A5;	UP TACK
+&#x22C5;&#x22C5;	DOT OPERATOR
+&#x2308;&#x2308;	LEFT CEILING
+&#x2309;&#x2309;	RIGHT CEILING
+&#x230A;&#x230A;	LEFT FLOOR
+&#x230B;&#x230B;	RIGHT FLOOR
+&#x23AA;&#x23AA;	CURLY BRACKET EXTENSION
+&#x23AF;&#x23AF;	HORIZONTAL LINE EXTENSION
+&#x2502;&#x2502;	BOX DRAWINGS LIGHT VERTICAL
+&#x25A1;&#x25A1;	WHITE SQUARE
+&#x25CA;&#x25CA;	LOZENGE
+&#x25CB;&#x25CB;	WHITE CIRCLE
+&#x261C;&#x261C;	WHITE LEFT POINTING INDEX
+&#x261E;&#x261E;	WHITE RIGHT POINTING INDEX
+&#x27E8;&#x27E8;	MATHEMATICAL LEFT ANGLE BRACKET
+&#x27E9;&#x27E9;	MATHEMATICAL RIGHT ANGLE BRACKET
+ENDTEST

Added: vendor/mandoc/dist/regress/char/unicode/named.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/named.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/named.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,166 @@
+CHAR-UNICODE-NAMED(1)       General Commands Manual      CHAR-UNICODE-NAMED(1)
+
+
+
+NNAAMMEE
+       char-unicode-named - Unicode characters having named escapes
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       ıı   LATIN SMALL LETTER DOTLESS I
+       IJIJ   LATIN CAPITAL LIGATURE IJ
+       ijij   LATIN SMALL LIGATURE IJ
+       ŁŁ   LATIN CAPITAL LETTER L WITH STROKE
+       łł   LATIN SMALL LETTER L WITH STROKE
+       ŒŒ   LATIN CAPITAL LIGATURE OE
+       œœ   LATIN SMALL LIGATURE OE
+       ƒƒ   LATIN SMALL LETTER F WITH HOOK
+       ˇˇ   CARON
+       ˘˘   BREVE
+       ˚˚   RING ABOVE
+       ˛˛   OGONEK
+       ˝˝   DOUBLE ACUTE ACCENT
+       ΑΑ   GREEK CAPITAL LETTER ALPHA
+       ΒΒ   GREEK CAPITAL LETTER BETA
+       ΔΔ   GREEK CAPITAL LETTER DELTA
+       ΕΕ   GREEK CAPITAL LETTER EPSILON
+       ΖΖ   GREEK CAPITAL LETTER ZETA
+       ΗΗ   GREEK CAPITAL LETTER ETA
+       ΘΘ   GREEK CAPITAL LETTER THETA
+       ΙΙ   GREEK CAPITAL LETTER IOTA
+       ΚΚ   GREEK CAPITAL LETTER KAPPA
+       ΛΛ   GREEK CAPITAL LETTER LAMDA
+       ΜΜ   GREEK CAPITAL LETTER MU
+       ΝΝ   GREEK CAPITAL LETTER NU
+       ΞΞ   GREEK CAPITAL LETTER XI
+       ΟΟ   GREEK CAPITAL LETTER OMICRON
+       ΠΠ   GREEK CAPITAL LETTER PI
+       ΡΡ   GREEK CAPITAL LETTER RHO
+       ΤΤ   GREEK CAPITAL LETTER TAU
+       ΥΥ   GREEK CAPITAL LETTER UPSILON
+       ΦΦ   GREEK CAPITAL LETTER PHI
+       ΧΧ   GREEK CAPITAL LETTER CHI
+       ΨΨ   GREEK CAPITAL LETTER PSI
+       ΩΩ   GREEK CAPITAL LETTER OMEGA
+       αα   GREEK SMALL LETTER ALPHA
+       ββ   GREEK SMALL LETTER BETA
+       γγ   GREEK SMALL LETTER GAMMA
+       δδ   GREEK SMALL LETTER DELTA
+       εε   GREEK SMALL LETTER EPSILON
+       ζζ   GREEK SMALL LETTER ZETA
+       ηη   GREEK SMALL LETTER ETA
+       θθ   GREEK SMALL LETTER THETA
+       ιι   GREEK SMALL LETTER IOTA
+       κκ   GREEK SMALL LETTER KAPPA
+       λλ   GREEK SMALL LETTER LAMDA
+       μμ   GREEK SMALL LETTER MU
+       νν   GREEK SMALL LETTER NU
+       ξξ   GREEK SMALL LETTER XI
+       οο   GREEK SMALL LETTER OMICRON
+       ππ   GREEK SMALL LETTER PI
+       ρρ   GREEK SMALL LETTER RHO
+       ςς   GREEK SMALL LETTER FINAL SIGMA
+       σσ   GREEK SMALL LETTER SIGMA
+       ττ   GREEK SMALL LETTER TAU
+       υυ   GREEK SMALL LETTER UPSILON
+       φφ   GREEK SMALL LETTER PHI
+       χχ   GREEK SMALL LETTER CHI
+       ψψ   GREEK SMALL LETTER PSI
+       ωω   GREEK SMALL LETTER OMEGA
+       ϑϑ   GREEK THETA SYMBOL
+       ϕϕ   GREEK PHI SYMBOL
+       ϖϖ   GREEK PI SYMBOL
+       ϵϵ   GREEK LUNATE EPSILON SYMBOL
+       ‐‐   HYPHEN
+       ––   EN DASH
+       ——   EM DASH
+       ‘‘   LEFT SINGLE QUOTATION MARK
+       ’’   RIGHT SINGLE QUOTATION MARK
+       ‚‚   SINGLE LOW-9 QUOTATION MARK
+       ““   LEFT DOUBLE QUOTATION MARK
+       ””   RIGHT DOUBLE QUOTATION MARK
+       „„   DOUBLE LOW-9 QUOTATION MARK
+       ††   DAGGER
+       ‡‡   DOUBLE DAGGER
+       ••   BULLET
+       ‰‰   PER MILLE SIGN
+       ′′   PRIME
+       ″″   DOUBLE PRIME
+       ‹‹   SINGLE LEFT-POINTING ANGLE QUOTATION MARK
+       ››   SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
+       ⁄⁄   FRACTION SLASH
+       €€€  EURO SIGN
+       ℑℑ   BLACK-LETTER CAPITAL I
+       ℜℜ   BLACK-LETTER CAPITAL R
+       ™™   TRADE MARK SIGN
+       ℵℵ   ALEF SYMBOL
+       ⅛⅛   VULGAR FRACTION ONE EIGHTH
+       ⅜⅜   VULGAR FRACTION THREE EIGHTHS
+       ⅝⅝   VULGAR FRACTION FIVE EIGHTHS
+       ⅞⅞   VULGAR FRACTION SEVEN EIGHTHS
+       ←←   LEFTWARDS ARROW
+       ↑↑   UPWARDS ARROW
+       →→   RIGHTWARDS ARROW
+       ↓↓   DOWNWARDS ARROW
+       ↔↔   LEFT RIGHT ARROW
+       ↵↵   DOWNWARDS ARROW WITH CORNER LEFTWARDS
+       ⇐⇐   LEFTWARDS DOUBLE ARROW
+       ⇑⇑   UPWARDS DOUBLE ARROW
+       ⇒⇒   RIGHTWARDS DOUBLE ARROW
+       ⇓⇓   DOWNWARDS DOUBLE ARROW
+       ⇔⇔   LEFT RIGHT DOUBLE ARROW
+       ∀∀   FOR ALL
+       ∂∂   PARTIAL DIFFERENTIAL
+       ∃∃   THERE EXISTS
+       ∅∅   EMPTY SET
+       ∈∈   ELEMENT OF
+       ∋∋   CONTAINS AS MEMBER
+       −−   MINUS SIGN
+       ∓∓   MINUS-OR-PLUS SIGN
+       ∗∗   ASTERISK OPERATOR
+       √√   SQUARE ROOT
+       ∝∝   PROPORTIONAL TO
+       ∞∞   INFINITY
+       ∠∠   ANGLE
+       ∧∧   LOGICAL AND
+       ∨∨   LOGICAL OR
+       ∩∩   INTERSECTION
+       ∪∪   UNION
+       ∫∫   INTEGRAL
+       ∴∴∴  THEREFORE
+       ∼∼   TILDE OPERATOR
+       ≃≃   ASYMPTOTICALLY EQUAL TO
+       ≅≅   APPROXIMATELY EQUAL TO
+       ≈≈≈  ALMOST EQUAL TO
+       ≠≠   NOT EQUAL TO
+       ≡≡   IDENTICAL TO
+       ≢≢   NOT IDENTICAL TO
+       ≤≤   LESS-THAN OR EQUAL TO
+       ≥≥   GREATER-THAN OR EQUAL TO
+       ⊂⊂   SUBSET OF
+       ⊃⊃   SUPERSET OF
+       ⊆⊆   SUBSET OF OR EQUAL TO
+       ⊇⊇   SUPERSET OF OR EQUAL TO
+       ⊕⊕   CIRCLED PLUS
+       ⊗⊗   CIRCLED TIMES
+       ⊥⊥   UP TACK
+       ⋅⋅   DOT OPERATOR
+       ⌈⌈   LEFT CEILING
+       ⌉⌉   RIGHT CEILING
+       ⌊⌊   LEFT FLOOR
+       ⌋⌋   RIGHT FLOOR
+       ⎪⎪   CURLY BRACKET EXTENSION
+       ⎯⎯   HORIZONTAL LINE EXTENSION
+       ││   BOX DRAWINGS LIGHT VERTICAL
+       □□   WHITE SQUARE
+       ◊◊   LOZENGE
+       ○○   WHITE CIRCLE
+       ☜☜   WHITE LEFT POINTING INDEX
+       ☞☞   WHITE RIGHT POINTING INDEX
+       ⟨⟨   MATHEMATICAL LEFT ANGLE BRACKET
+       ⟩⟩   MATHEMATICAL RIGHT ANGLE BRACKET
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014          CHAR-UNICODE-NAMED(1)

Added: vendor/mandoc/dist/regress/char/unicode/namediff.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/namediff.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/namediff.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+.\" $OpenBSD: namediff.in,v 1.6 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-UNICODE-NAMEDIFF 1 "October 27, 2014"
+.SH NAME
+char-unicode-namediff \- Unicode characters having named escapes
+.SH DESCRIPTION
+.nf
+BEGINTEST
+\[u0237]\(.j LATIN SMALL LETTER DOTLESS J
+\[u02D9]\(a. DOT ABOVE
+\[u0393]\(*G GREEK CAPITAL LETTER GAMMA
+\[u03A3]\(*S GREEK CAPITAL LETTER SIGMA
+\[u203E]\(rn OVERLINE
+\[u210F]\[hbar]\(-h PLANCK CONSTANT OVER TWO PI
+\[u2118]\(wp SCRIPT CAPITAL P
+\[u2195]\(va UP DOWN ARROW
+\[u21D5]\(vA UP DOWN DOUBLE ARROW
+\[u2207]\(gr NABLA
+\[u2209]\(nm NOT AN ELEMENT OF
+\[u220F]\[product] N-ARY PRODUCT
+\[u2210]\[coproduct] N-ARY COPRODUCT
+\[u2211]\[sum] N-ARY SUMMATION
+\[u2284]\(nb NOT A SUBSET OF
+\[u2285]\(nc NOT A SUPERSET OF
+\[u239B]\[parenlefttp] LEFT PARENTHESIS UPPER HOOK
+\[u239C]\[parenleftex] LEFT PARENTHESIS EXTENSION
+\[u239D]\[parenleftbt] LEFT PARENTHESIS LOWER HOOK
+\[u239E]\[parenrighttp] RIGHT PARENTHESIS UPPER HOOK
+\[u239F]\[parenrightex] RIGHT PARENTHESIS EXTENSION
+\[u23A0]\[parenrightbt] RIGHT PARENTHESIS LOWER HOOK
+\[u23A1]\[bracketlefttp] LEFT SQUARE BRACKET UPPER CORNER
+\[u23A2]\[bracketleftex] LEFT SQUARE BRACKET EXTENSION
+\[u23A3]\[bracketleftbt] LEFT SQUARE BRACKET LOWER CORNER
+\[u23A4]\[bracketrighttp] RIGHT SQUARE BRACKET UPPER CORNER
+\[u23A5]\[bracketrightex] RIGHT SQUARE BRACKET EXTENSION
+\[u23A6]\[bracketrightbt] RIGHT SQUARE BRACKET LOWER CORNER
+\[u23A7]\[bracelefttp] LEFT CURLY BRACKET UPPER HOOK
+\[u23A8]\[braceleftmid] LEFT CURLY BRACKET MIDDLE PIECE
+\[u23A9]\[braceleftbt] LEFT CURLY BRACKET LOWER HOOK
+\[u23AA]\[braceex]\[braceleftex]\[bracerightex] CURLY BRACKET EXTENSION
+\[u23AB]\[bracerighttp] RIGHT CURLY BRACKET UPPER HOOK
+\[u23AC]\[bracerightmid] RIGHT CURLY BRACKET MIDDLE PIECE
+\[u23AD]\[bracerightbt] RIGHT CURLY BRACKET LOWER HOOK
+\[u2660]\(SP BLACK SPADE SUIT
+\[u2663]\(CL BLACK CLUB SUIT
+\[u2665]\(HE BLACK HEART SUIT
+\[u2666]\(DI BLACK DIAMOND SUIT
+\[u2713]\(OK CHECK MARK
+ENDTEST
+.fi

Added: vendor/mandoc/dist/regress/char/unicode/namediff.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/namediff.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/namediff.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,54 @@
+CHAR-UNICODE-NAMEDIFF(1)    General Commands Manual   CHAR-UNICODE-NAMEDIFF(1)
+
+
+
+NNAAMMEE
+       char-unicode-namediff - Unicode characters having named escapes
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       jj LATIN SMALL LETTER DOTLESS J
+       .. DOT ABOVE
+       GG GREEK CAPITAL LETTER GAMMA
+       SS GREEK CAPITAL LETTER SIGMA
+       -- OVERLINE
+       /h/h/h PLANCK CONSTANT OVER TWO PI
+       PP SCRIPT CAPITAL P
+       ^v^v UP DOWN ARROW
+       ^=v^=v UP DOWN DOUBLE ARROW
+       VV NABLA
+       !E!E NOT AN ELEMENT OF
+       TTTT N-ARY PRODUCT
+       UU N-ARY COPRODUCT
+       EE N-ARY SUMMATION
+       (!=(!= NOT A SUBSET OF
+       !=)!=) NOT A SUPERSET OF
+       // LEFT PARENTHESIS UPPER HOOK
+       || LEFT PARENTHESIS EXTENSION
+       \\ LEFT PARENTHESIS LOWER HOOK
+       \\ RIGHT PARENTHESIS UPPER HOOK
+       || RIGHT PARENTHESIS EXTENSION
+       // RIGHT PARENTHESIS LOWER HOOK
+       || LEFT SQUARE BRACKET UPPER CORNER
+       || LEFT SQUARE BRACKET EXTENSION
+       || LEFT SQUARE BRACKET LOWER CORNER
+       || RIGHT SQUARE BRACKET UPPER CORNER
+       || RIGHT SQUARE BRACKET EXTENSION
+       || RIGHT SQUARE BRACKET LOWER CORNER
+       ,-,- LEFT CURLY BRACKET UPPER HOOK
+       {{ LEFT CURLY BRACKET MIDDLE PIECE
+       `-`- LEFT CURLY BRACKET LOWER HOOK
+       |||| CURLY BRACKET EXTENSION
+       -.-. RIGHT CURLY BRACKET UPPER HOOK
+       }} RIGHT CURLY BRACKET MIDDLE PIECE
+       -'-' RIGHT CURLY BRACKET LOWER HOOK
+       <spade><spade> BLACK SPADE SUIT
+       <club><club> BLACK CLUB SUIT
+       <heart><heart> BLACK HEART SUIT
+       <diamond><diamond> BLACK DIAMOND SUIT
+       \/\/ CHECK MARK
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014       CHAR-UNICODE-NAMEDIFF(1)

Added: vendor/mandoc/dist/regress/char/unicode/namediff.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/namediff.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/namediff.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+BEGINTEST
+&#x0237;&#x0237; LATIN SMALL LETTER DOTLESS J
+&#x02D9;&#x02D9; DOT ABOVE
+&#x0393;&#x0393; GREEK CAPITAL LETTER GAMMA
+&#x03A3;&#x03A3; GREEK CAPITAL LETTER SIGMA
+&#x203E;&#x203E; OVERLINE
+&#x210F;&#x210F;&#x210F; PLANCK CONSTANT OVER TWO PI
+&#x2118;&#x2118; SCRIPT CAPITAL P
+&#x2195;&#x2195; UP DOWN ARROW
+&#x21D5;&#x21D5; UP DOWN DOUBLE ARROW
+&#x2207;&#x2207; NABLA
+&#x2209;&#x2209; NOT AN ELEMENT OF
+&#x220F;&#x220F; N-ARY PRODUCT
+&#x2210;&#x2210; N-ARY COPRODUCT
+&#x2211;&#x2211; N-ARY SUMMATION
+&#x2284;&#x2284; NOT A SUBSET OF
+&#x2285;&#x2285; NOT A SUPERSET OF
+&#x239B;&#x239B; LEFT PARENTHESIS UPPER HOOK
+&#x239C;&#x239C; LEFT PARENTHESIS EXTENSION
+&#x239D;&#x239D; LEFT PARENTHESIS LOWER HOOK
+&#x239E;&#x239E; RIGHT PARENTHESIS UPPER HOOK
+&#x239F;&#x239F; RIGHT PARENTHESIS EXTENSION
+&#x23A0;&#x23A0; RIGHT PARENTHESIS LOWER HOOK
+&#x23A1;&#x23A1; LEFT SQUARE BRACKET UPPER CORNER
+&#x23A2;&#x23A2; LEFT SQUARE BRACKET EXTENSION
+&#x23A3;&#x23A3; LEFT SQUARE BRACKET LOWER CORNER
+&#x23A4;&#x23A4; RIGHT SQUARE BRACKET UPPER CORNER
+&#x23A5;&#x23A5; RIGHT SQUARE BRACKET EXTENSION
+&#x23A6;&#x23A6; RIGHT SQUARE BRACKET LOWER CORNER
+&#x23A7;&#x23A7; LEFT CURLY BRACKET UPPER HOOK
+&#x23A8;&#x23A8; LEFT CURLY BRACKET MIDDLE PIECE
+&#x23A9;&#x23A9; LEFT CURLY BRACKET LOWER HOOK
+&#x23AA;&#x23AA;&#x23AA;&#x23AA; CURLY BRACKET EXTENSION
+&#x23AB;&#x23AB; RIGHT CURLY BRACKET UPPER HOOK
+&#x23AC;&#x23AC; RIGHT CURLY BRACKET MIDDLE PIECE
+&#x23AD;&#x23AD; RIGHT CURLY BRACKET LOWER HOOK
+&#x2660;&#x2660; BLACK SPADE SUIT
+&#x2663;&#x2663; BLACK CLUB SUIT
+&#x2665;&#x2665; BLACK HEART SUIT
+&#x2666;&#x2666; BLACK DIAMOND SUIT
+&#x2713;&#x2713; CHECK MARK
+ENDTEST

Added: vendor/mandoc/dist/regress/char/unicode/namediff.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/namediff.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/namediff.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,54 @@
+CHAR-UNICODE-NAMEDIFF(1)    General Commands Manual   CHAR-UNICODE-NAMEDIFF(1)
+
+
+
+NNAAMMEE
+       char-unicode-namediff - Unicode characters having named escapes
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       ȷȷ LATIN SMALL LETTER DOTLESS J
+       ˙˙ DOT ABOVE
+       ΓΓ GREEK CAPITAL LETTER GAMMA
+       ΣΣ GREEK CAPITAL LETTER SIGMA
+       ‾‾ OVERLINE
+       ℏℏℏ PLANCK CONSTANT OVER TWO PI
+       ℘℘ SCRIPT CAPITAL P
+       ↕↕ UP DOWN ARROW
+       ⇕⇕ UP DOWN DOUBLE ARROW
+       ∇∇ NABLA
+       ∉∉ NOT AN ELEMENT OF
+       ∏∏ N-ARY PRODUCT
+       ∐∐ N-ARY COPRODUCT
+       ∑∑ N-ARY SUMMATION
+       ⊄⊄ NOT A SUBSET OF
+       ⊅⊅ NOT A SUPERSET OF
+       ⎛⎛ LEFT PARENTHESIS UPPER HOOK
+       ⎜⎜ LEFT PARENTHESIS EXTENSION
+       ⎝⎝ LEFT PARENTHESIS LOWER HOOK
+       ⎞⎞ RIGHT PARENTHESIS UPPER HOOK
+       ⎟⎟ RIGHT PARENTHESIS EXTENSION
+       ⎠⎠ RIGHT PARENTHESIS LOWER HOOK
+       ⎡⎡ LEFT SQUARE BRACKET UPPER CORNER
+       ⎢⎢ LEFT SQUARE BRACKET EXTENSION
+       ⎣⎣ LEFT SQUARE BRACKET LOWER CORNER
+       ⎤⎤ RIGHT SQUARE BRACKET UPPER CORNER
+       ⎥⎥ RIGHT SQUARE BRACKET EXTENSION
+       ⎦⎦ RIGHT SQUARE BRACKET LOWER CORNER
+       ⎧⎧ LEFT CURLY BRACKET UPPER HOOK
+       ⎨⎨ LEFT CURLY BRACKET MIDDLE PIECE
+       ⎩⎩ LEFT CURLY BRACKET LOWER HOOK
+       ⎪⎪⎪⎪ CURLY BRACKET EXTENSION
+       ⎫⎫ RIGHT CURLY BRACKET UPPER HOOK
+       ⎬⎬ RIGHT CURLY BRACKET MIDDLE PIECE
+       ⎭⎭ RIGHT CURLY BRACKET LOWER HOOK
+       ♠♠ BLACK SPADE SUIT
+       ♣♣ BLACK CLUB SUIT
+       ♥♥ BLACK HEART SUIT
+       ♦♦ BLACK DIAMOND SUIT
+       ✓✓ CHECK MARK
+       ENDTEST
+
+
+
+OpenBSD                        October 27, 2014       CHAR-UNICODE-NAMEDIFF(1)

Added: vendor/mandoc/dist/regress/char/unicode/nogroff.in
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/nogroff.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/nogroff.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,44 @@
+.\" $OpenBSD: nogroff.in,v 1.5 2017/07/04 14:53:23 schwarze Exp $
+.TH CHAR-UNICODE-NOGROFF 1 "October 28, 2014"
+.SH NAME
+char-unicode-nogroff \- characters handled differently by groff
+.SH DESCRIPTION
+.nf
+BEGINTEST
+\[u0000]\N'0'	<control> NULL
+\[u0001]\N'1'	<control> START OF HEADING
+\[u0007]\N'7'	<control> BELL
+\[u0008]\N'8'	<control> BACKSPACE
+\[u0009]\N'9'	<control> CHARACTER TABULATION
+\[u000A]\N'10'	<control> LINE FEED
+\[u000B]\N'11'	<control> LINE TABULATION
+\[u000C]\N'12'	<control> FORM FEED
+\[u000D]\N'13'	<control> CARRIAGE RETURN
+\[u001B]\N'27'	<control> ESCAPE
+\[u007F]\N'127'	<control> DELETE
+\[u0080]\N'128'	<control> 0x80
+\[u0081]\N'129'	<control> 0x81
+\[u0082]\N'130'	<control> BREAK PERMITTED HERE
+\[u0083]\N'131'	<control> NO BREAK HERE
+\[u009E]\N'158'	<control> PRIVACY MESSAGE
+\[u009F]\N'159'	<control> APPLICATION PROGRAM COMMAND
+\[u226A]\(<<	MUCH LESS-THAN
+\[u226B]\(>>	MUCH GREATER-THAN
+\[uFB00]\(ff	LATIN SMALL LIGATURE FF
+\[uFB01]\(fi	LATIN SMALL LIGATURE FI
+\[uFB02]\(fl	LATIN SMALL LIGATURE FL
+\[uFB03]\(Fi	LATIN SMALL LIGATURE FFI
+\[uFB04]\(Fl	LATIN SMALL LIGATURE FFL
+\[uFFFD]	REPLACEMENT CHARACTER
+\[uFFFE]	<undefined>
+\[uFFFF]	<undefined>
+\[u10000]	LINEAR B SYLLABLE B008 A
+\[uFFFFD]	<Plane 15 Private Use, Last>
+\[uFFFFE]	<undefined>
+\[uFFFFF]	<undefined>
+\[u100000]	<Plane 16 Private Use, First>
+\[u10FFFD]	<Plane 16 Private Use, Last>
+\[u10FFFE]	<undefined>
+\[u10FFFF]	<undefined>
+ENDTEST
+.fi

Added: vendor/mandoc/dist/regress/char/unicode/nogroff.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/nogroff.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/nogroff.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+CHAR-UNICODE-NOGROFF(1)     General Commands Manual    CHAR-UNICODE-NOGROFF(1)
+
+
+
+NNAAMMEE
+       char-unicode-nogroff - characters handled differently by groff
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       <NUL><NUL>     <control> NULL
+       <SOH><SOH>     <control> START OF HEADING
+       <BEL><BEL>     <control> BELL
+       <BS><BS>  <control> BACKSPACE
+                      <control> CHARACTER TABULATION
+       <LF><LF>  <control> LINE FEED
+       <VT><VT>  <control> LINE TABULATION
+       <FF><FF>  <control> FORM FEED
+       <CR><CR>  <control> CARRIAGE RETURN
+       <ESC><ESC>     <control> ESCAPE
+       <DEL><DEL>     <control> DELETE
+       <80><80>  <control> 0x80
+       <81><81>  <control> 0x81
+       <82><82>  <control> BREAK PERMITTED HERE
+       <83><83>  <control> NO BREAK HERE
+       <9E><9E>  <control> PRIVACY MESSAGE
+       <9F><9F>  <control> APPLICATION PROGRAM COMMAND
+       <<<< MUCH LESS-THAN
+       >>>> MUCH GREATER-THAN
+       ffff LATIN SMALL LIGATURE FF
+       fifi LATIN SMALL LIGATURE FI
+       flfl LATIN SMALL LIGATURE FL
+       ffiffi    LATIN SMALL LIGATURE FFI
+       fflffl    LATIN SMALL LIGATURE FFL
+       <?>  REPLACEMENT CHARACTER
+       <?>  <undefined>
+       <?>  <undefined>
+       <?>  LINEAR B SYLLABLE B008 A
+       <?>  <Plane 15 Private Use, Last>
+       <?>  <undefined>
+       <?>  <undefined>
+       <?>  <Plane 16 Private Use, First>
+       <?>  <Plane 16 Private Use, Last>
+       <?>  <undefined>
+       <?>  <undefined>
+       ENDTEST
+
+
+
+OpenBSD                        October 28, 2014        CHAR-UNICODE-NOGROFF(1)

Added: vendor/mandoc/dist/regress/char/unicode/nogroff.out_html
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/nogroff.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/nogroff.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+BEGINTEST
+&#xFFFD;&#xFFFD;	<control> NULL
+&#xFFFD;&#xFFFD;	<control> START OF HEADING
+&#xFFFD;&#xFFFD;	<control> BELL
+&#xFFFD;&#xFFFD;	<control> BACKSPACE
+			<control> CHARACTER TABULATION
+&#xFFFD;&#xFFFD;	<control> LINE FEED
+&#xFFFD;&#xFFFD;	<control> LINE TABULATION
+&#xFFFD;&#xFFFD;	<control> FORM FEED
+&#xFFFD;&#xFFFD;	<control> CARRIAGE RETURN
+&#xFFFD;&#xFFFD;	<control> ESCAPE
+&#xFFFD;&#xFFFD;	<control> DELETE
+&#xFFFD;&#xFFFD;	<control> 0x80
+&#xFFFD;&#xFFFD;	<control> 0x81
+&#xFFFD;&#xFFFD;	<control> BREAK PERMITTED HERE
+&#xFFFD;&#xFFFD;	<control> NO BREAK HERE
+&#xFFFD;&#xFFFD;	<control> PRIVACY MESSAGE
+&#xFFFD;&#xFFFD;	<control> APPLICATION PROGRAM COMMAND
+&#x226A;&#x226A;	MUCH LESS-THAN
+&#x226B;&#x226B;	MUCH GREATER-THAN
+&#xFB00;&#xFB00;	LATIN SMALL LIGATURE FF
+&#xFB01;&#xFB01;	LATIN SMALL LIGATURE FI
+&#xFB02;&#xFB02;	LATIN SMALL LIGATURE FL
+&#xFB03;&#xFB03;	LATIN SMALL LIGATURE FFI
+&#xFB04;&#xFB04;	LATIN SMALL LIGATURE FFL
+&#xFFFD;	REPLACEMENT CHARACTER
+&#xFFFE;	<undefined>
+&#xFFFF;	<undefined>
+&#x10000;	LINEAR B SYLLABLE B008 A
+&#xFFFFD;	<Plane 15 Private Use, Last>
+&#xFFFFE;	<undefined>
+&#xFFFFF;	<undefined>
+&#x100000;	<Plane 16 Private Use, First>
+&#x10FFFD;	<Plane 16 Private Use, Last>
+&#x10FFFE;	<undefined>
+&#x10FFFF;	<undefined>
+ENDTEST

Added: vendor/mandoc/dist/regress/char/unicode/nogroff.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/char/unicode/nogroff.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/char/unicode/nogroff.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+CHAR-UNICODE-NOGROFF(1)     General Commands Manual    CHAR-UNICODE-NOGROFF(1)
+
+
+
+NNAAMMEE
+       char-unicode-nogroff - characters handled differently by groff
+
+DDEESSCCRRIIPPTTIIOONN
+       BEGINTEST
+       ��   <control> NULL
+       ��   <control> START OF HEADING
+       ��   <control> BELL
+       ��   <control> BACKSPACE
+                      <control> CHARACTER TABULATION
+       ��   <control> LINE FEED
+       ��   <control> LINE TABULATION
+       ��   <control> FORM FEED
+       ��   <control> CARRIAGE RETURN
+       ��   <control> ESCAPE
+       ��   <control> DELETE
+       ��   <control> 0x80
+       ��   <control> 0x81
+       ��   <control> BREAK PERMITTED HERE
+       ��   <control> NO BREAK HERE
+       ��   <control> PRIVACY MESSAGE
+       ��   <control> APPLICATION PROGRAM COMMAND
+       ≪≪   MUCH LESS-THAN
+       ≫≫   MUCH GREATER-THAN
+       ffff   LATIN SMALL LIGATURE FF
+       fifi   LATIN SMALL LIGATURE FI
+       flfl   LATIN SMALL LIGATURE FL
+       ffiffi   LATIN SMALL LIGATURE FFI
+       fflffl   LATIN SMALL LIGATURE FFL
+       �    REPLACEMENT CHARACTER
+       \x{FFFE}     <undefined>
+       \x{FFFF}     <undefined>
+       𐀀    LINEAR B SYLLABLE B008 A
+       󿿽     <Plane 15 Private Use, Last>
+       \x{FFFFE}     <undefined>
+       \x{FFFFF}     <undefined>
+       􀀀     <Plane 16 Private Use, First>
+       􏿽     <Plane 16 Private Use, Last>
+       \x{10FFFE}     <undefined>
+       \x{10FFFF}     <undefined>
+       ENDTEST
+
+
+
+OpenBSD                        October 28, 2014        CHAR-UNICODE-NOGROFF(1)

Added: vendor/mandoc/dist/regress/eqn/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2015/01/28 21:10:28 schwarze Exp $
+
+SUBDIR  = fromto define delim matrix nullary over size subsup unary
+
+.include "../Makefile.sub"
+.include <bsd.subdir.mk>

Added: vendor/mandoc/dist/regress/eqn/Makefile.inc
===================================================================
--- vendor/mandoc/dist/regress/eqn/Makefile.inc	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/Makefile.inc	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+# $OpenBSD: Makefile.inc,v 1.2 2015/02/03 19:37:25 schwarze Exp $
+
+EQN = /usr/local/bin/eqn
+
+SKIP_GROFF ?= ${REGRESS_TARGETS}
+SKIP_TMAN ?= ALL
+SKIP_MARKDOWN ?= ALL
+
+
+# OpenBSD only: maintainer targets and custom extraction
+
+_FULLHTMLFILES = ${HTML_TARGETS:S/$/.html/}
+
+html-clean:
+.if !empty(_FULLHTMLFILES)
+	@rm -f ${_HTMLFILES} ${_FULLHTMLFILES}
+.endif
+
+.for t in ${HTML_TARGETS}
+${t}.out_html: ${t}.in
+	${MANDOC} ${MOPTS} -Thtml ${.ALLSRC} | \
+		${.CURDIR}/../extract.pl > ${.TARGET}
+.endfor
+
+.include "../Makefile.inc"
+
+.in.mandoc_html:
+	@${MANDOC} ${MOPTS} -Thtml ${.IMPSRC} > ${.TARGET:S/mandoc_html$/html/}
+	@${.CURDIR}/../extract.pl < ${.TARGET:S/mandoc_html$/html/} > ${.TARGET}

Added: vendor/mandoc/dist/regress/eqn/define/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2015/01/28 21:10:28 schwarze Exp $
+
+REGRESS_TARGETS	 = font infinite invalid quoted
+LINT_TARGETS	 = infinite invalid
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/define/font.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DEFINE-FONT 1
+.Os
+.Sh NAME
+.Nm define-font
+.Nd font selection takes place after define resolution
+.Sh DESCRIPTION
+initial text
+.EQ
+define alias 'sin x'
+alias
+define sin 'value'
+sin
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/define/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DEFINE-FONT(1)              General Commands Manual             DEFINE-FONT(1)
+
+NNAAMMEE
+     ddeeffiinnee--ffoonntt - font selection takes place after define resolution
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text sin _x _v_a_l_u_e final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/define/infinite.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/infinite.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/infinite.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: infinite.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DEFINE-INFINITE 1
+.Os
+.Sh NAME
+.Nm define-infinite
+.Nd infinite recursion in define statements
+.Sh DESCRIPTION
+alone:
+.EQ
+define key 'key' key
+.EN
+eol
+.Pp
+leading position:
+.EQ
+define key 'key suffix' key
+.EN
+eol
+.Pp
+middle position:
+.EQ
+define key 'prefix key suffix' key
+.EN
+eol
+.Pp
+trailing position:
+.EQ
+define key 'prefix key' key
+.EN
+eol

Added: vendor/mandoc/dist/regress/eqn/define/infinite.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/infinite.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/infinite.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+DEFINE-INFINITE(1)          General Commands Manual         DEFINE-INFINITE(1)
+
+NNAAMMEE
+     ddeeffiinnee--iinnffiinniittee - infinite recursion in define statements
+
+DDEESSCCRRIIPPTTIIOONN
+     alone: eol
+
+     leading position: eol
+
+     middle position: eol
+
+     trailing position: eol
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/define/infinite.out_lint
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/infinite.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/infinite.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: infinite.in:10:2: ERROR: input stack limit exceeded, infinite loop?
+mandoc: infinite.in:16:2: ERROR: input stack limit exceeded, infinite loop?
+mandoc: infinite.in:22:2: ERROR: input stack limit exceeded, infinite loop?
+mandoc: infinite.in:28:2: ERROR: input stack limit exceeded, infinite loop?

Added: vendor/mandoc/dist/regress/eqn/define/invalid.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/invalid.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/invalid.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+.\" $OpenBSD: invalid.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DEFINE-INVALID 1
+.Os
+.Sh NAME
+.Nm define-invalid
+.Nd invalid define and undef statements
+.Sh DESCRIPTION
+define without variable name:
+.EQ
+define bruch 'over' 1 bruch 2 undef bruch bruch define
+.EN
+eol
+.Pp
+define without value:
+.EQ
+define bruch 'over' 1 bruch 2 undef bruch bruch define bruch
+.EN
+eol
+.Pp
+define without value:
+.EQ
+define bruch 'over' 1 bruch 2 undef bruch bruch undef
+.EN
+eol
+.Pp
+tdefine without variable name:
+.EQ
+tdefine
+.EN
+eol
+.Pp
+tdefine without value:
+.EQ
+tdefine bruch
+.EN
+eol

Added: vendor/mandoc/dist/regress/eqn/define/invalid.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/invalid.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/invalid.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+DEFINE-INVALID(1)           General Commands Manual          DEFINE-INVALID(1)
+
+NNAAMMEE
+     ddeeffiinnee--iinnvvaalliidd - invalid define and undef statements
+
+DDEESSCCRRIIPPTTIIOONN
+     define without variable name: 1/2 _b_r_u_c_h eol
+
+     define without value: 1/2 _b_r_u_c_h eol
+
+     define without value: 1/2 _b_r_u_c_h eol
+
+     tdefine without variable name: eol
+
+     tdefine without value: eol
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/define/invalid.out_lint
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/invalid.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/invalid.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: invalid.in:10:2: WARNING: skipping empty request: define
+mandoc: invalid.in:16:2: WARNING: skipping empty request: define bruch
+mandoc: invalid.in:22:2: WARNING: skipping empty request: undef
+mandoc: invalid.in:28:2: WARNING: skipping empty request: tdefine
+mandoc: invalid.in:34:2: WARNING: skipping empty request: tdefine

Added: vendor/mandoc/dist/regress/eqn/define/quoted.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/quoted.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/quoted.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: quoted.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DEFINE-QUOTED 1
+.Os
+.Sh NAME
+.Nm define-quoted
+.Nd interaction of the define control statement with quoting
+.Sh DESCRIPTION
+initial text
+.EQ
+define unquoted 'sin'
+"unquoted"
+unquoted
+define quoted '"sin"'
+"quoted"
+quoted
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/define/quoted.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/define/quoted.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/define/quoted.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DEFINE-QUOTED(1)            General Commands Manual           DEFINE-QUOTED(1)
+
+NNAAMMEE
+     ddeeffiinnee--qquuootteedd - interaction of the define control statement with quoting
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _u_n_q_u_o_t_e_d sin _q_u_o_t_e_d _s_i_n final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/delim/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/delim/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/delim/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2015/01/01 12:53:46 schwarze Exp $
+
+REGRESS_TARGETS	 = basic
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/delim/basic.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/delim/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/delim/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: basic.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DELIM-BASIC 1
+.Os
+.Sh NAME
+.Nm delim-basic
+.Nd inline eqn delimiters
+.Sh DESCRIPTION
+initial text
+.EQ
+delim <>alpha
+.EN
+inline <beta>
+.EQ
+delim offgamma
+.EN
+inline <delta>
+.EQ
+delim onepsilon
+.EN
+inline <zeta>
+final text

Added: vendor/mandoc/dist/regress/eqn/delim/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/delim/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/delim/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DELIM-BASIC(1)              General Commands Manual             DELIM-BASIC(1)
+
+NNAAMMEE
+     ddeelliimm--bbaassiicc - inline eqn delimiters
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text a inline B y inline <delta> e inline ,C final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/fromto/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2017/07/06 00:08:52 schwarze Exp $
+
+REGRESS_TARGETS  = basic noarg precedence
+HTML_TARGETS	 = basic noarg precedence
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/fromto/basic.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: basic.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FROMTO-BASIC 1
+.Os
+.Sh NAME
+.Nm fromto-basic
+.Nd vertical stacking
+.Sh DESCRIPTION
+initial text
+.EQ
+sum from { i = 1 } to inf 1 over i sup 2
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/fromto/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+FROMTO-BASIC(1)             General Commands Manual            FROMTO-BASIC(1)
+
+NNAAMMEE
+     ffrroommttoo--bbaassiicc - vertical stacking
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text E_(_i = 1)^oo 1/(_i^2) final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/fromto/basic.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/basic.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/basic.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><munderover><mo>&#x2211;</mo><mrow><mi>i</mi><mo>=</mo><mn>1</mn></mrow><mo>&#x221E;</mo></munderover><mfrac><mn>1</mn><msup><mi>i</mi><mn>2</mn></msup></mfrac></mrow>

Added: vendor/mandoc/dist/regress/eqn/fromto/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FROMTO-NOARG 1
+.Os
+.Sh NAME
+.Nm fromto-noarg
+.Nd vertical stacking lacks final argument
+.Sh DESCRIPTION
+initial text
+.EQ
+x from a to to
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/fromto/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+FROMTO-NOARG(1)             General Commands Manual            FROMTO-NOARG(1)
+
+NNAAMMEE
+     ffrroommttoo--nnooaarrgg - vertical stacking lacks final argument
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _x_(_a^)^ final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/fromto/noarg.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/noarg.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/noarg.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><munderover><mi>x</mi><mover><mi>a</mi></mover></munderover></mrow>

Added: vendor/mandoc/dist/regress/eqn/fromto/precedence.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/precedence.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/precedence.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: precedence.in,v 1.1 2017/07/06 00:08:52 schwarze Exp $
+.Dd $Mdocdate: July 6 2017 $
+.Dt SUBSUP-PRECEDENCE 1
+.Os
+.Sh NAME
+.Nm subsup-precedence
+.Nd precedence of subscripts and superscripts
+.Sh DESCRIPTION
+.ps 36
+initial text
+.EQ
+X from a under to c hat ; roman X from bold a to italic c ;
+X sub 1 sup 2 from a sub c sup e to o sub r sup s
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/fromto/precedence.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/precedence.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/precedence.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SUBSUP-PRECEDENCE(1)        General Commands Manual       SUBSUP-PRECEDENCE(1)
+
+NNAAMMEE
+     ssuubbssuupp--pprreecceeddeennccee - precedence of subscripts and superscripts
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _X_(_a_)^_c^ ; X_aa^_c ; (_X_1^2)_(_a__c^_e)^(_o__r^_s) final text
+
+OpenBSD                          July 6, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/fromto/precedence.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/fromto/precedence.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/fromto/precedence.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><munderover><mi>X</mi><munder><mi>a</mi><mo>_</mo></munder><mover><mi>c</mi><mo>^</mo></mover></munderover><mo>;</mo><munderover><mrow><mi fontstyle="normal">X</mi></mrow><mrow><mi fontweight="bold">a</mi></mrow><mrow><mi>c</mi></mrow></munderover><mo>;</mo><munderover><msubsup><mi>X</mi><mn>1</mn><mn>2</mn></msubsup><msubsup><mi>a</mi><mi>c</mi><mi>e</mi></msubsup><msubsup><mi>o</mi><mi>r</mi><mi>s</mi></msubsup></munderover></mrow>

Added: vendor/mandoc/dist/regress/eqn/matrix/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/matrix/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/matrix/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2015/01/01 12:53:46 schwarze Exp $
+
+REGRESS_TARGETS	 = basic empty
+HTML_TARGETS	 = basic empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/matrix/basic.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/matrix/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/matrix/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: basic.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt MATRIX-BASIC 1
+.Os
+.Sh NAME
+.Nm matrix-basic
+.Nd matrixes in equations
+.Sh DESCRIPTION
+initial text
+.EQ
+left (
+matrix { ccol { a sub 11 above a sub 21 } ccol { a sub 12 above a sub 22 } }
+right )
+left (
+pile { b sub 1 above b sub 2 }
+right )
+left [
+bold pile { sin above "sin" }
+right ]
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/matrix/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/matrix/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/matrix/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+MATRIX-BASIC(1)             General Commands Manual            MATRIX-BASIC(1)
+
+NNAAMMEE
+     mmaattrriixx--bbaassiicc - matrixes in equations
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text ((_a_11 _a_21) (_a_12 _a_22)) (_b_1 _b_2) [sin ssiinn] final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/matrix/basic.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/matrix/basic.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/matrix/basic.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><mfenced open="(" close=")"><mrow><mtable><mtr><mtd><msub><mi>a</mi><mn>11</mn></msub></mtd><mtd><msub><mi>a</mi><mn>12</mn></msub></mtd></mtr><mtr><mtd><msub><mi>a</mi><mn>21</mn></msub></mtd><mtd><msub><mi>a</mi><mn>22</mn></msub></mtd></mtr></mtable></mrow></mfenced><mfenced open="(" close=")"><mrow><mtable><mtr><mtd><msub><mi>b</mi><mn>1</mn></msub></mtd></mtr><mtr><mtd><msub><mi>b</mi><mn>2</mn></msub></mtd></mtr></mtable></mrow></mfenced><mfenced open="[" close="]"><mrow><mrow><mtable><mtr><mtd><mi>sin</mi></mtd></mtr><mtr><mtd><mi fontweight="bold">sin</mi></mtd></mtr></mtable></mrow></mrow></mfenced></mrow>

Added: vendor/mandoc/dist/regress/eqn/matrix/empty.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/matrix/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/matrix/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt MATRIX-EMPTY 1
+.Os
+.Sh NAME
+.Nm matrix-empty
+.Nd empty matrixes
+.Sh DESCRIPTION
+initial text
+.EQ
+left (
+matrix { }
+right )
+left (
+matrix
+right )
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/matrix/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/matrix/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/matrix/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+MATRIX-EMPTY(1)             General Commands Manual            MATRIX-EMPTY(1)
+
+NNAAMMEE
+     mmaattrriixx--eemmppttyy - empty matrixes
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text () () final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/matrix/empty.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/matrix/empty.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/matrix/empty.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><mfenced open="(" close=")"><mrow></mrow></mfenced><mfenced open="(" close=")"><mrow></mrow></mfenced></mrow>

Added: vendor/mandoc/dist/regress/eqn/nullary/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2015/01/01 12:53:46 schwarze Exp $
+
+REGRESS_TARGETS	 = roman symbol
+UTF8_TARGETS	 = symbol
+HTML_TARGETS	 = roman symbol
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/nullary/roman.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/roman.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/roman.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+.\" $OpenBSD: roman.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NULLARY-ROMAN 1
+.Os
+.Sh NAME
+.Nm nullary-roman
+.Nd equation tokens set in roman font
+.Sh DESCRIPTION
+initial text \(em
+.EQ
+roman "unquoted words:"
+sin cos tan sec csc asin acos atan asec acsc
+sinh cosh tanh coth arc
+max min lim log ln exp
+Re Im and if for det
+\(em
+roman "quoted words:"
+"sin" "cos" "tan" "sec" "csc" "asin" "acos" "atan" "asec" "acsc"
+"sinh" "cosh" "tanh" "coth" "arc"
+"max" "min" "lim" "log" "ln" "exp"
+"Re" "Im" "and" "if" "for" "det"
+\(em
+roman "font operations:"
+bold sin
+bold "sin"
+\(em
+roman "superstring:"
+sinus 
+\(em
+roman "composite word:"
+tan = sin/cos
+.EN
+\(em final text

Added: vendor/mandoc/dist/regress/eqn/nullary/roman.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/roman.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/roman.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+NULLARY-ROMAN(1)            General Commands Manual           NULLARY-ROMAN(1)
+
+NNAAMMEE
+     nnuullllaarryy--rroommaann - equation tokens set in roman font
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text -- unquoted words: sin cos tan sec csc asin acos atan asec
+     acsc sinh cosh tanh coth arc max min lim log ln exp Re Im and if for det
+     -- quoted words: _s_i_n _c_o_s _t_a_n _s_e_c _c_s_c _a_s_i_n _a_c_o_s _a_t_a_n _a_s_e_c _a_c_s_c _s_i_n_h _c_o_s_h
+     _t_a_n_h _c_o_t_h _a_r_c _m_a_x _m_i_n _l_i_m _l_o_g _l_n _e_x_p _R_e _I_m _a_n_d _i_f _f_o_r _d_e_t -- font
+     operations: sin ssiinn -- superstring: _s_i_n_u_s -- composite word: tan = _s_i_n /
+     _c_o_s -- final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/nullary/roman.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/roman.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/roman.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+<mrow><mrow><mi>unquoted
+words:</mi></mrow><mi>sin</mi><mi>cos</mi><mi>tan</mi>
+<mi>sec</mi><mi>csc</mi>
+<mi>asin</mi><mi>acos</mi><mi>atan</mi><mi>asec</mi>
+<mi>acsc</mi><mi>sinh</mi>
+<mi>cosh</mi><mi>tanh</mi><mi>coth</mi><mi>arc</mi>
+<mi>max</mi><mi>min</mi><mi>lim</mi><mi>log</mi><mi>ln</mi><mi>exp</mi><mi>Re</mi><mi>Im</mi><mi>and</mi><mi>if</mi><mi>for</mi><mi>det</mi><mo>&#x2014;</mo><mrow><mi>quoted
+words:</mi></mrow>
+<mi fontstyle="italic">sin</mi><mi fontstyle="italic">cos</mi>
+<mi fontstyle="italic">tan</mi><mi fontstyle="italic">sec</mi><mi fontstyle="italic">csc</mi><mi fontstyle="italic">asin</mi><mi fontstyle="italic">acos</mi><mi fontstyle="italic">atan</mi><mi fontstyle="italic">asec</mi><mi fontstyle="italic">acsc</mi><mi fontstyle="italic">sinh</mi><mi fontstyle="italic">cosh</mi><mi fontstyle="italic">tanh</mi><mi fontstyle="italic">coth</mi><mi fontstyle="italic">arc</mi><mi fontstyle="italic">max</mi><mi fontstyle="italic">min</mi><mi fontstyle="italic">lim</mi><mi fontstyle="italic">log</mi><mi fontstyle="italic">ln</mi><mi fontstyle="italic">exp</mi><mi fontstyle="italic">Re</mi><mi fontstyle="italic">Im</mi><mi fontstyle="italic">and</mi><mi fontstyle="italic">if</mi><mi fontstyle="italic">for</mi><mi fontstyle="italic">det</mi><mo>&#x2014;</mo><mrow><mi>font
+operations:</mi></mrow>
+<mrow><mi>sin</mi></mrow><mrow><mi fontweight="bold">sin</mi></mrow><mo>&#x2014;</mo><mrow><mi>superstring:</mi></mrow><mi fontstyle="italic">sinus</mi><mo>&#x2014;</mo><mrow><mi>composite
+word:</mi></mrow>
+<mi>tan</mi><mo>=</mo><mi fontstyle="italic">sin</mi><mo>/</mo>
+<mi fontstyle="italic">cos</mi></mrow>

Added: vendor/mandoc/dist/regress/eqn/nullary/symbol.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/symbol.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/symbol.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: symbol.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NULLARY-SYMBOL 1
+.Os
+.Sh NAME
+.Nm nullary-symbol
+.Nd equation tokens for symbols
+.Sh DESCRIPTION
+initial text \(em
+.EQ
+roman "unquoted words:"
+epsilon prime
+\(em
+roman "quoted words:"
+"epsilon" "prime"
+\(em
+roman "composite word:"
+epsilon-prime
+.EN
+\(em final text

Added: vendor/mandoc/dist/regress/eqn/nullary/symbol.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/symbol.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/symbol.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+NULLARY-SYMBOL(1)           General Commands Manual          NULLARY-SYMBOL(1)
+
+NNAAMMEE
+     nnuullllaarryy--ssyymmbbooll - equation tokens for symbols
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text -- unquoted words: e ' -- quoted words: _e_p_s_i_l_o_n _p_r_i_m_e --
+     composite word: _e_p_s_i_l_o_n - _p_r_i_m_e -- final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/nullary/symbol.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/symbol.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/symbol.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+<mrow><mrow><mi>unquoted
+words:</mi></mrow><mo>&#x03B5;</mo><mo>&#x2032;</mo><mo>&#x2014;</mo><mrow><mi>quoted
+words:</mi></mrow>
+<mi fontstyle="italic">epsilon</mi><mi fontstyle="italic">prime</mi><mo>&#x2014;</mo><mrow><mi>composite
+word:</mi></mrow>
+<mi fontstyle="italic">epsilon</mi><mo>-</mo><mi fontstyle="italic">prime</mi></mrow>

Added: vendor/mandoc/dist/regress/eqn/nullary/symbol.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/eqn/nullary/symbol.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/nullary/symbol.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+NULLARY-SYMBOL(1)           General Commands Manual          NULLARY-SYMBOL(1)
+
+NNAAMMEE
+     nnuullllaarryy--ssyymmbbooll – equation tokens for symbols
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text — unquoted words: ε ′ — quoted words: _e_p_s_i_l_o_n _p_r_i_m_e —
+     composite word: _e_p_s_i_l_o_n - _p_r_i_m_e — final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/over/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.2 2015/01/01 15:34:43 schwarze Exp $
+
+REGRESS_TARGETS	 = noarg precedence
+HTML_TARGETS	 = noarg precedence
+LINT_TARGETS	 = noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/over/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OVER-NOARG 1
+.Os
+.Sh NAME
+.Nm over-noarg
+.Nd fraction operator without arguments
+.Sh DESCRIPTION
+initial text
+.EQ
+over over
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/over/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+OVER-NOARG(1)               General Commands Manual              OVER-NOARG(1)
+
+NNAAMMEE
+     oovveerr--nnooaarrgg - fraction operator without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text (/)/ final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/over/noarg.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/noarg.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/noarg.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><mfrac><mfrac><mi></mi></mfrac></mfrac></mrow>

Added: vendor/mandoc/dist/regress/eqn/over/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noarg.in:10:2: WARNING: missing eqn box, using "": over

Added: vendor/mandoc/dist/regress/eqn/over/precedence.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/precedence.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/precedence.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: precedence.in,v 1.3 2017/07/06 00:08:52 schwarze Exp $
+.Dd $Mdocdate: July 6 2017 $
+.Dt OVER-PRECEDENCE 1
+.Os
+.Sh NAME
+.Nm over-precedence
+.Nd precedence of the fraction operator
+.Sh DESCRIPTION
+initial text
+.EQ
+1 + x + x sup 2 over 2 + x sup 3 over { 2 * 3 } ;
+a hat over c tilde ; bold a over bold c ; sqrt a over sqrt c
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/over/precedence.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/precedence.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/precedence.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+OVER-PRECEDENCE(1)          General Commands Manual         OVER-PRECEDENCE(1)
+
+NNAAMMEE
+     oovveerr--pprreecceeddeennccee - precedence of the fraction operator
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text 1 + _x + (_x^2)/2 + (_x^3)/(2 * 3) ; _a^/_c~ ; aa/cc ;
+     sqrt(_a)/sqrt(_c) final text
+
+OpenBSD                          July 6, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/over/precedence.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/over/precedence.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/over/precedence.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><mn>1</mn><mo>+</mo><mi>x</mi><mo>+</mo><mfrac><msup><mi>x</mi><mn>2</mn></msup><mn>2</mn></mfrac><mo>+</mo><mfrac><msup><mi>x</mi><mn>3</mn></msup><mrow><mn>2</mn><mo>*</mo><mn>3</mn></mrow></mfrac><mo>;</mo><mfrac><mover><mi>a</mi><mo>^</mo></mover><mover><mi>c</mi><mo>~</mo></mover></mfrac><mo>;</mo><mfrac><mrow><mi fontweight="bold">a</mi></mrow><mrow><mi fontweight="bold">c</mi></mrow></mfrac><mo>;</mo><mfrac><msqrt><mi>a</mi></msqrt><msqrt><mi>c</mi></msqrt></mfrac></mrow>

Added: vendor/mandoc/dist/regress/eqn/size/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/size/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/size/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2015/01/01 12:53:46 schwarze Exp $
+
+REGRESS_TARGETS	 = basic
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/size/basic.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/size/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/size/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: basic.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SIZE-BASIC 1
+.Os
+.Sh NAME
+.Nm size-basic
+.Nd font sizes
+.Sh DESCRIPTION
+initial text
+.EQ
+x size 12 x size 14 x size 16 x
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/size/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/size/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/size/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SIZE-BASIC(1)               General Commands Manual              SIZE-BASIC(1)
+
+NNAAMMEE
+     ssiizzee--bbaassiicc - font sizes
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _x _x _x _x final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/subsup/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2017/07/06 00:08:52 schwarze Exp $
+
+REGRESS_TARGETS  = combine noarg precedence sub_group
+HTML_TARGETS	 = combine noarg precedence sub_group
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/subsup/combine.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/combine.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/combine.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: combine.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SUBSUP-COMBINE 1
+.Os
+.Sh NAME
+.Nm subsup-combine
+.Nd combination of subscripts and superscripts
+.Sh DESCRIPTION
+initial text
+.EQ
+x sub 1 sup 2 + e sup x sub 2
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/subsup/combine.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/combine.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/combine.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SUBSUP-COMBINE(1)           General Commands Manual          SUBSUP-COMBINE(1)
+
+NNAAMMEE
+     ssuubbssuupp--ccoommbbiinnee - combination of subscripts and superscripts
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _x_1^2 + _e^(_x_2) final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/subsup/combine.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/combine.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/combine.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><msubsup><mi>x</mi><mn>1</mn><mn>2</mn></msubsup><mo>+</mo><msup><mi>e</mi><msub><mi>x</mi><mn>2</mn></msub></msup></mrow>

Added: vendor/mandoc/dist/regress/eqn/subsup/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SUBSUP-NOARG 1
+.Os
+.Sh NAME
+.Nm subsup-noarg
+.Nd empty subscripts and superscripts
+.Sh DESCRIPTION
+initial text
+.EQ
+x sub 1 sup sup
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/subsup/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SUBSUP-NOARG(1)             General Commands Manual            SUBSUP-NOARG(1)
+
+NNAAMMEE
+     ssuubbssuupp--nnooaarrgg - empty subscripts and superscripts
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _x_(1^)^ final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/subsup/noarg.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/noarg.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/noarg.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><msubsup><mi>x</mi><msup><mn>1</mn></msup></msubsup></mrow>

Added: vendor/mandoc/dist/regress/eqn/subsup/precedence.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/precedence.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/precedence.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: precedence.in,v 1.1 2017/07/06 00:08:52 schwarze Exp $
+.Dd $Mdocdate: July 6 2017 $
+.Dt SUBSUP-PRECEDENCE 1
+.Os
+.Sh NAME
+.Nm subsup-precedence
+.Nd precedence of subscripts and superscripts
+.Sh DESCRIPTION
+initial text
+.EQ
+x hat sub 1 under sup 2 bar + e tilde sup x hat sub s dyad ;
+roman I sub bold I sup italic I + roman I sup bold I sub italic I
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/subsup/precedence.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/precedence.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/precedence.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SUBSUP-PRECEDENCE(1)        General Commands Manual       SUBSUP-PRECEDENCE(1)
+
+NNAAMMEE
+     ssuubbssuupp--pprreecceeddeennccee - precedence of subscripts and superscripts
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text (_x^)_(1_)^2- + (_e~)^((_x^)__s<->) ; I_II^_I + I^(II__I) final text
+
+OpenBSD                          July 6, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/subsup/precedence.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/precedence.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/precedence.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><msubsup><mover><mi>x</mi><mo>^</mo></mover><munder><mn>1</mn><mo>_</mo></munder><mover><mn>2</mn><mo>&#x203E;</mo></mover></msubsup><mo>+</mo><msup><mover><mi>e</mi><mo>~</mo></mover><msub><mover><mi>x</mi><mo>^</mo></mover><mover><mi>s</mi><mo>&#x2194;</mo></mover></msub></msup><mo>;</mo><msubsup><mrow><mi fontstyle="normal">I</mi></mrow><mrow><mi fontweight="bold">I</mi></mrow><mrow><mi>I</mi></mrow></msubsup><mo>+</mo><msup><mrow><mi fontstyle="normal">I</mi></mrow><msub><mrow><mi fontweight="bold">I</mi></mrow><mrow><mi>I</mi></mrow></msub></msup></mrow>

Added: vendor/mandoc/dist/regress/eqn/subsup/sub_group.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/sub_group.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/sub_group.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: sub_group.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SUBSUP-SUB_GROUP 1
+.Os
+.Sh NAME
+.Nm subsup-sub_group
+.Nd grouping of subscripts
+.Sh DESCRIPTION
+initial text
+.EQ
+x sub i + x sub j sub 1 + { M sub i } sub j
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/subsup/sub_group.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/sub_group.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/sub_group.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SUBSUP-SUB_GROUP(1)         General Commands Manual        SUBSUP-SUB_GROUP(1)
+
+NNAAMMEE
+     ssuubbssuupp--ssuubb__ggrroouupp - grouping of subscripts
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _x__i + _x_(_j_1) + (_M__i)__j final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/subsup/sub_group.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/subsup/sub_group.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/subsup/sub_group.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><msub><mi>x</mi><mi>i</mi></msub><mo>+</mo><msub><mi>x</mi><msub><mi>j</mi><mn>1</mn></msub></msub><mo>+</mo><msub><mrow><msub><mi>M</mi><mi>i</mi></msub></mrow><mi>j</mi></msub></mrow>

Added: vendor/mandoc/dist/regress/eqn/unary/Makefile
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2015/01/01 12:53:46 schwarze Exp $
+
+REGRESS_TARGETS	 = bold diacrit sqrt
+HTML_TARGETS	 = bold diacrit sqrt
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/eqn/unary/bold.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/bold.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/bold.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: bold.in,v 1.3 2017/07/06 00:08:52 schwarze Exp $
+.Dd $Mdocdate: July 6 2017 $
+.Dt UNARY-BOLD 1
+.Os
+.Sh NAME
+.Nm unary-bold
+.Nd font handling in bold boxes
+.Sh DESCRIPTION
+initial text
+.EQ
+bold { sin "sin" } "text" bold x hat
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/unary/bold.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/bold.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/bold.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+UNARY-BOLD(1)               General Commands Manual              UNARY-BOLD(1)
+
+NNAAMMEE
+     uunnaarryy--bboolldd - font handling in bold boxes
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text ((sin ssiinn)) _t_e_x_t xx^^ final text
+
+OpenBSD                          July 6, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/unary/bold.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/bold.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/bold.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><mrow><mrow><mi>sin</mi><mi fontweight="bold">sin</mi></mrow></mrow><mi fontstyle="italic">text</mi><mrow><mover><mi fontweight="bold">x</mi><mo>^</mo></mover></mrow></mrow>

Added: vendor/mandoc/dist/regress/eqn/unary/diacrit.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/diacrit.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/diacrit.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: diacrit.in,v 1.3 2017/07/06 00:08:52 schwarze Exp $
+.Dd $Mdocdate: July 6 2017 $
+.Dt UNARY-DIACRIT 1
+.Os
+.Sh NAME
+.Nm unary-diacrit
+.Nd diacritical marks in equations
+.Sh DESCRIPTION
+initial text
+.EQ
+x dot x dotdot x hat x tilde x vec x dyad
+{ x + y } bar { x + y } under
+x tilde hat
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/unary/diacrit.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/diacrit.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/diacrit.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+UNARY-DIACRIT(1)            General Commands Manual           UNARY-DIACRIT(1)
+
+NNAAMMEE
+     uunnaarryy--ddiiaaccrriitt - diacritical marks in equations
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _x. _x" _x^ _x~ _x-> _x<-> (_x + _y)- (_x + _y)_ _x~^ final text
+
+OpenBSD                          July 6, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/unary/diacrit.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/diacrit.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/diacrit.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><mover><mi>x</mi><mo>&#x02D9;</mo></mover><mover><mi>x</mi><mo>&#x00A8;</mo></mover><mover><mi>x</mi><mo>^</mo></mover><mover><mi>x</mi><mo>~</mo></mover><mover><mi>x</mi><mo>&#x2192;</mo></mover><mover><mi>x</mi><mo>&#x2194;</mo></mover><mover><mrow><mi>x</mi><mo>+</mo><mi>y</mi></mrow><mo>&#x203E;</mo></mover><munder><mrow><mi>x</mi><mo>+</mo><mi>y</mi></mrow><mo>_</mo></munder><mover><mover><mi>x</mi><mo>~</mo></mover><mo>^</mo></mover></mrow>

Added: vendor/mandoc/dist/regress/eqn/unary/sqrt.in
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/sqrt.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/sqrt.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: sqrt.in,v 1.5 2017/07/06 00:08:52 schwarze Exp $
+.Dd $Mdocdate: July 6 2017 $
+.Dt UNARY-SQRT 1
+.Os
+.Sh NAME
+.Nm unary-sqrt
+.Nd square root
+.Sh DESCRIPTION
+initial text
+.EQ
+r = sqrt { x sup 2 + y sup 2 } + sqrt a+b + sqrt x hat + sqrt { } + sqrt
+.EN
+final text

Added: vendor/mandoc/dist/regress/eqn/unary/sqrt.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/sqrt.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/sqrt.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+UNARY-SQRT(1)               General Commands Manual              UNARY-SQRT(1)
+
+NNAAMMEE
+     uunnaarryy--ssqqrrtt - square root
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _r = sqrt(_x^2 + _y^2) + sqrt(_a + _b) + sqrt(_x^) + sqrt() + sqrt
+     final text
+
+OpenBSD                          July 6, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/eqn/unary/sqrt.out_html
===================================================================
--- vendor/mandoc/dist/regress/eqn/unary/sqrt.out_html	                        (rev 0)
+++ vendor/mandoc/dist/regress/eqn/unary/sqrt.out_html	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+<mrow><mi>r</mi><mo>=</mo><msqrt><mrow><msup><mi>x</mi><mn>2</mn></msup><mo>+</mo><msup><mi>y</mi><mn>2</mn></msup></mrow></msqrt><mo>+</mo><msqrt><mrow><mi>a</mi><mo>+</mo><mi>b</mi></mrow></msqrt><mo>+</mo><msqrt><mover><mi>x</mi><mo>^</mo></mover></msqrt><mo>+</mo><msqrt><mrow></mrow></msqrt><mo>+</mo><msqrt></msqrt></mrow>

Added: vendor/mandoc/dist/regress/man/B/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/B/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/B/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+# $OpenBSD: Makefile,v 1.1 2014/08/14 02:00:52 schwarze Exp $
+
+REGRESS_TARGETS	= args blank
+LINT_TARGETS	= args blank
+
+# groff-1.22.3 defect:
+# - A blank line in next line scope causes a blank line.
+SKIP_GROFF	= blank
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/B/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/B/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/B/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: args.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.TH B-ARGS 1 "July 30, 2014"
+.SH NAME
+B-args \- arguments to font macros
+.SH DESCRIPTION
+This is
+.B bold
+text.
+It also works with
+.B several words on a line
+and with
+.B
+next line
+scope.
+.nf
+In no-fill mode:
+.B two words
+and another line.
+.fi
+It has no effect at the end of the file:
+.B

Added: vendor/mandoc/dist/regress/man/B/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/B/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/B/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+B-ARGS(1)                   General Commands Manual                  B-ARGS(1)
+
+
+
+NNAAMMEE
+       B-args - arguments to font macros
+
+DDEESSCCRRIIPPTTIIOONN
+       This is bboolldd text.  It also works with sseevveerraall wwoorrddss oonn aa lliinnee and with
+       nneexxtt lliinnee scope.
+       In no-fill mode:
+       ttwwoo wwoorrddss
+       and another line.
+       It has no effect at the end of the file:
+
+
+
+OpenBSD                          July 30, 2014                       B-ARGS(1)

Added: vendor/mandoc/dist/regress/man/B/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/B/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/B/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: args.in:21:2: WARNING: line scope broken: EOF breaks B

Added: vendor/mandoc/dist/regress/man/B/blank.in
===================================================================
--- vendor/mandoc/dist/regress/man/B/blank.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/B/blank.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: blank.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH B-BLANK 1 "June 3, 2017"
+.SH NAME
+B-blank \- blank line in font macro next line scope
+.SH DESCRIPTION
+A blank line in
+.B
+
+bold
+next line scope.

Added: vendor/mandoc/dist/regress/man/B/blank.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/B/blank.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/B/blank.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+B-BLANK(1)                  General Commands Manual                 B-BLANK(1)
+
+
+
+NNAAMMEE
+       B-blank - blank line in font macro next line scope
+
+DDEESSCCRRIIPPTTIIOONN
+       A blank line in bboolldd next line scope.
+
+
+
+OpenBSD                          June 3, 2017                       B-BLANK(1)

Added: vendor/mandoc/dist/regress/man/B/blank.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/B/blank.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/B/blank.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: blank.in:8:1: WARNING: skipping blank line in line scope

Added: vendor/mandoc/dist/regress/man/BI/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/BI/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/BI/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.3 2015/04/06 22:06:06 schwarze Exp $
+
+REGRESS_TARGETS	 = emptyargs literal
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/BI/emptyargs.in
===================================================================
--- vendor/mandoc/dist/regress/man/BI/emptyargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/BI/emptyargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: emptyargs.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH BI-EMPTYARGS 1 "April 6, 2015"
+.SH NAME
+BI-emptyargs \- empty arguments to font alternation macros
+.SH DESCRIPTION
+leading text
+.TP 6n
+.BI bold italic "" ""
+.BI bold "" "" italic 
+.PP
+trailing text

Added: vendor/mandoc/dist/regress/man/BI/emptyargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/BI/emptyargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/BI/emptyargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+BI-EMPTYARGS(1)             General Commands Manual            BI-EMPTYARGS(1)
+
+
+
+NNAAMMEE
+       BI-emptyargs - empty arguments to font alternation macros
+
+DDEESSCCRRIIPPTTIIOONN
+       leading text
+
+       bboolldd_i_t_a_l_i_c
+             bboolldd_i_t_a_l_i_c
+
+       trailing text
+
+
+
+OpenBSD                          April 6, 2015                 BI-EMPTYARGS(1)

Added: vendor/mandoc/dist/regress/man/BI/literal.in
===================================================================
--- vendor/mandoc/dist/regress/man/BI/literal.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/BI/literal.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: literal.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.TH GETTEXT 3 "May 2001" "GNU gettext 0.18"
+.SH NAME
+gettext, dgettext, dcgettext \- translate message
+.SH SYNOPSIS
+.nf
+.B #include <libintl.h>
+.sp
+.BI "char * gettext (const char * " msgid );
+.BI "char * dgettext (const char * " domainname ", const char * " msgid );
+.BI "char * dcgettext (const char * " domainname ", const char * " msgid ,
+.BI "                  int " category );
+.fi

Added: vendor/mandoc/dist/regress/man/BI/literal.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/BI/literal.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/BI/literal.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+GETTEXT(3)                 Library Functions Manual                 GETTEXT(3)
+
+
+
+NNAAMMEE
+       gettext, dgettext, dcgettext - translate message
+
+SSYYNNOOPPSSIISS
+       ##iinncclluuddee <<lliibbiinnttll..hh>>
+
+       cchhaarr ** ggeetttteexxtt ((ccoonnsstt cchhaarr ** _m_s_g_i_d));;
+       cchhaarr ** ddggeetttteexxtt ((ccoonnsstt cchhaarr ** _d_o_m_a_i_n_n_a_m_e,, ccoonnsstt cchhaarr ** _m_s_g_i_d));;
+       cchhaarr ** ddccggeetttteexxtt ((ccoonnsstt cchhaarr ** _d_o_m_a_i_n_n_a_m_e,, ccoonnsstt cchhaarr ** _m_s_g_i_d,,
+                         iinntt _c_a_t_e_g_o_r_y));;
+
+
+
+GNU gettext 0.18                   May 2001                         GETTEXT(3)

Added: vendor/mandoc/dist/regress/man/EX/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/EX/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/EX/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1 2012/06/02 20:07:09 schwarze Exp $
+
+REGRESS_TARGETS=spacing nested args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/EX/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/EX/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/EX/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH EX-ARGS 1 "June 3, 2012"
+.SH NAME
+EX-args \- example macro with arguments
+.SH DESCRIPTION
+regular
+text
+.EX arg1 arg2 arg3
+literal
+text
+.EE arg1 arg2 arg3
+regular
+text

Added: vendor/mandoc/dist/regress/man/EX/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/EX/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/EX/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+EX-ARGS(1)                  General Commands Manual                 EX-ARGS(1)
+
+
+
+NNAAMMEE
+       EX-args - example macro with arguments
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       literal
+       text
+       regular text
+
+
+
+OpenBSD                          June 3, 2012                       EX-ARGS(1)

Added: vendor/mandoc/dist/regress/man/EX/nested.in
===================================================================
--- vendor/mandoc/dist/regress/man/EX/nested.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/EX/nested.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: nested.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH EX-NESTED 1 "June 3, 2012"
+.SH NAME
+EX-nested \- nested example macros
+.SH DESCRIPTION
+regular
+text
+.EX
+outer
+example
+.EX
+inner
+example
+.EE
+outer
+example
+.EE
+regular
+text

Added: vendor/mandoc/dist/regress/man/EX/nested.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/EX/nested.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/EX/nested.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+EX-NESTED(1)                General Commands Manual               EX-NESTED(1)
+
+
+
+NNAAMMEE
+       EX-nested - nested example macros
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       outer
+       example
+       inner
+       example
+       outer example
+       regular text
+
+
+
+OpenBSD                          June 3, 2012                     EX-NESTED(1)

Added: vendor/mandoc/dist/regress/man/EX/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/man/EX/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/EX/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,36 @@
+.\" $OpenBSD: spacing.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH EX-SPACING 1 "June 3, 2012"
+.SH NAME
+EX-spacing \- spacing around the example macro
+.SH DESCRIPTION
+regular
+text
+.EX
+example
+text
+.EE
+regular
+text
+.nf
+literal
+text
+.EX
+example
+text
+.EE
+regular
+text
+.PP
+.EX
+after PP, before nf
+.EE
+.nf
+.EX
+after nf, before fi
+.EE
+.fi
+after fi, before PP
+.EE
+.PP
+regular
+text

Added: vendor/mandoc/dist/regress/man/EX/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/EX/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/EX/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+EX-SPACING(1)               General Commands Manual              EX-SPACING(1)
+
+
+
+NNAAMMEE
+       EX-spacing - spacing around the example macro
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       example
+       text
+       regular text
+       literal
+       text
+       example
+       text
+       regular text
+
+       after PP, before nf
+       after nf, before fi
+       after fi, before PP
+
+       regular text
+
+
+
+OpenBSD                          June 3, 2012                    EX-SPACING(1)

Added: vendor/mandoc/dist/regress/man/HP/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/HP/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.2 2014/04/08 04:45:50 schwarze Exp $
+
+REGRESS_TARGETS = break literal macrotag manyargs spacing
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/HP/break.in
===================================================================
--- vendor/mandoc/dist/regress/man/HP/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH HP-BREAK 1 "September 21, 2011"
+.SH NAME
+HP-break \- breaking the head line of hanged paragraphs
+.SH DESCRIPTION
+.HP 12n
+This is an extremely long head line of a hanged paragraph;
+it is so long that it won't even fit on the line.
+.fi
+The body of the hanged paragraph is quite long as well
+and will again break the line.

Added: vendor/mandoc/dist/regress/man/HP/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/HP/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+HP-BREAK(1)                 General Commands Manual                HP-BREAK(1)
+
+
+
+NNAAMMEE
+       HP-break - breaking the head line of hanged paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+       This is an extremely long head line of a hanged paragraph; it is so
+                   long that it won't even fit on the line.
+                   The body of the hanged paragraph is quite long as well and
+                   will again break the line.
+
+
+
+OpenBSD                       September 21, 2011                   HP-BREAK(1)

Added: vendor/mandoc/dist/regress/man/HP/literal.in
===================================================================
--- vendor/mandoc/dist/regress/man/HP/literal.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/literal.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: literal.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH HP-LITERAL 1 "January 4, 2011"
+.SH NAME
+HP-literal \- hanged paragraphs in literal context
+.SH DESCRIPTION
+regular
+text
+.HP 10n
+tag
+indented
+text
+.PP
+regular
+text
+.nf
+literal
+text
+.HP 10n
+tag
+indented
+text
+.PP
+literal
+text
+.fi
+regular
+text

Added: vendor/mandoc/dist/regress/man/HP/literal.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/HP/literal.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/literal.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+HP-LITERAL(1)               General Commands Manual              HP-LITERAL(1)
+
+
+
+NNAAMMEE
+       HP-literal - hanged paragraphs in literal context
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag indented text
+
+       regular text
+       literal
+       text
+
+       tag
+                 indented
+                 text
+
+       literal
+       text
+       regular text
+
+
+
+OpenBSD                         January 4, 2011                  HP-LITERAL(1)

Added: vendor/mandoc/dist/regress/man/HP/macrotag.in
===================================================================
--- vendor/mandoc/dist/regress/man/HP/macrotag.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/macrotag.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: macrotag.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH HP-MACROTAG 1 "September 20, 2011"
+.SH NAME
+HP-macrotag \- macro in the head of a tagged paragraph
+.SH DESCRIPTION
+regular
+text
+.HP
+.B longindent
+indented
+text
+.PP
+regular
+text

Added: vendor/mandoc/dist/regress/man/HP/macrotag.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/HP/macrotag.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/macrotag.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+HP-MACROTAG(1)              General Commands Manual             HP-MACROTAG(1)
+
+
+
+NNAAMMEE
+       HP-macrotag - macro in the head of a tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       lloonnggiinnddeenntt indented text
+
+       regular text
+
+
+
+OpenBSD                       September 20, 2011                HP-MACROTAG(1)

Added: vendor/mandoc/dist/regress/man/HP/manyargs.in
===================================================================
--- vendor/mandoc/dist/regress/man/HP/manyargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/manyargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+.\" $OpenBSD: manyargs.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH HP-MANYARGS 1 "January 4, 2011"
+.SH NAME
+HP-manyargs \- too many header args for hanged blocks
+.SH DESCRIPTION
+regular
+text
+.HP 10n
+tag1
+indented
+text
+.PP
+regular
+text
+.HP 10n tag1
+tag2
+indented
+text
+.PP
+regular
+text
+.HP 10n tag2 tag1
+tag3
+indented
+text
+.nf
+literal
+text
+.HP 10n
+tag1
+indented
+text
+.PP
+literal
+text
+.HP 10n tag1
+tag2
+indented
+text
+.PP
+literal
+text
+.HP 10n tag2 tag1
+tag3
+indented
+text

Added: vendor/mandoc/dist/regress/man/HP/manyargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/HP/manyargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/manyargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+HP-MANYARGS(1)              General Commands Manual             HP-MANYARGS(1)
+
+
+
+NNAAMMEE
+       HP-manyargs - too many header args for hanged blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag1 indented text
+
+       regular text
+
+       tag2 indented text
+
+       regular text
+
+       tag3 indented text
+                 literal
+                 text
+
+       tag1
+                 indented
+                 text
+
+       literal
+       text
+
+       tag2
+                 indented
+                 text
+
+       literal
+       text
+
+       tag3
+                 indented
+                 text
+
+
+
+OpenBSD                         January 4, 2011                 HP-MANYARGS(1)

Added: vendor/mandoc/dist/regress/man/HP/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/man/HP/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,60 @@
+.\" $OpenBSD: spacing.in,v 1.6 2017/07/04 14:53:23 schwarze Exp $
+.TH HP-SPACING 1 "December 23, 2014"
+.SH NAME
+HP-spacing \- spacing in hanged lists
+.SH DESCRIPTION
+Normal text.
+.HP
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.sp 1v
+Vertical spacing an a third line.
+.br
+A fourth line.
+.HP -10n
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP -0.36i
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP 0n
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP 1n
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP 2n
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP 4n
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP .76i
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP 16n
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.br
+And a second line.
+.HP 78n
+Each hanged paragraph gets a sufficient amount of text
+to wrap to the next line.
+.LP
+Normal text.

Added: vendor/mandoc/dist/regress/man/HP/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/HP/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/HP/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,58 @@
+HP-SPACING(1)               General Commands Manual              HP-SPACING(1)
+
+
+
+NNAAMMEE
+       HP-spacing - spacing in hanged lists
+
+DDEESSCCRRIIPPTTIIOONN
+       Normal text.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+              next line.
+              And a second line.
+
+              Vertical spacing an a third line.
+              A fourth line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+next line.
+And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+   next line.
+   And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+       next line.
+       And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+        next line.
+        And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+         next line.
+         And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+           next line.
+           And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+               next line.
+               And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+                       next line.
+                       And a second line.
+
+       Each hanged paragraph gets a sufficient amount of text to wrap to the
+                                                                                     next
+                                                                                     line.
+
+       Normal text.
+
+
+
+OpenBSD                        December 23, 2014                 HP-SPACING(1)

Added: vendor/mandoc/dist/regress/man/IP/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/IP/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.8 2014/07/02 05:51:49 schwarze Exp $
+
+REGRESS_TARGETS = empty literal longhead manyargs spacing width
+LINT_TARGETS	= empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/IP/empty.in
===================================================================
--- vendor/mandoc/dist/regress/man/IP/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH IP-EMPTY 1 "July 17, 2012"
+.SH NAME
+IP-empty \- empty indented paragraphs
+.SH DESCRIPTION
+regular
+text
+.IP
+indented
+text
+.PP
+Empty IP is deleted:
+.IP
+.IP tag1 10n
+.IP tag2
+indented
+text
+.PP
+Empty IP is deleted, RS does not cause additional spacing:
+.IP
+.RS
+.IP tag
+indented
+text
+.RE
+regular
+text

Added: vendor/mandoc/dist/regress/man/IP/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/IP/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+IP-EMPTY(1)                 General Commands Manual                IP-EMPTY(1)
+
+
+
+NNAAMMEE
+       IP-empty - empty indented paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+              indented text
+
+       Empty IP is deleted:
+
+       tag1
+
+       tag2      indented text
+
+       Empty IP is deleted, RS does not cause additional spacing:
+
+              tag    indented text
+       regular text
+
+
+
+OpenBSD                          July 17, 2012                     IP-EMPTY(1)

Added: vendor/mandoc/dist/regress/man/IP/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/IP/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:13:2: WARNING: skipping paragraph macro: IP empty
+mandoc: empty.in:20:2: WARNING: skipping paragraph macro: IP empty

Added: vendor/mandoc/dist/regress/man/IP/literal.in
===================================================================
--- vendor/mandoc/dist/regress/man/IP/literal.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/literal.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,65 @@
+.\" $OpenBSD: literal.in,v 1.6 2017/07/04 14:53:23 schwarze Exp $
+.TH IP-LITERAL 1 "January 4, 2011"
+.SH NAME
+IP-literal \- indented paragraphs in literal context
+.SH DESCRIPTION
+regular
+text
+.IP tag 10n
+indented
+regular
+text
+.PP
+new
+regular
+paragraph
+.nf
+literal
+text
+.IP tag 10n
+indented
+literal
+text
+.PP
+new
+literal
+paragraph
+.fi
+regular
+text
+.SS literal into indented paragraph
+regular
+text
+.nf
+literal
+text
+.IP tag 10n
+indented
+literal
+text
+.fi
+indented
+regular
+text
+.PP
+new
+regular
+paragraph
+.SS literal out of indented paragraph
+regular
+text
+.IP tag 10n
+indented
+regular
+text
+.nf
+indented
+literal
+text
+.PP
+new
+literal
+paragraph
+.fi
+regular
+text

Added: vendor/mandoc/dist/regress/man/IP/literal.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/IP/literal.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/literal.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,53 @@
+IP-LITERAL(1)               General Commands Manual              IP-LITERAL(1)
+
+
+
+NNAAMMEE
+       IP-literal - indented paragraphs in literal context
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag       indented regular text
+
+       new regular paragraph
+       literal
+       text
+
+       tag       indented
+                 literal
+                 text
+
+       new
+       literal
+       paragraph
+       regular text
+
+   lliitteerraall iinnttoo iinnddeenntteedd ppaarraaggrraapphh
+       regular text
+       literal
+       text
+
+       tag       indented
+                 literal
+                 text
+                 indented regular text
+
+       new regular paragraph
+
+   lliitteerraall oouutt ooff iinnddeenntteedd ppaarraaggrraapphh
+       regular text
+
+       tag       indented regular text
+                 indented
+                 literal
+                 text
+
+       new
+       literal
+       paragraph
+       regular text
+
+
+
+OpenBSD                         January 4, 2011                  IP-LITERAL(1)

Added: vendor/mandoc/dist/regress/man/IP/longhead.in
===================================================================
--- vendor/mandoc/dist/regress/man/IP/longhead.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/longhead.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: longhead.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH IP-LONGHEAD 1 "April 8, 2014"
+.SH NAME
+IP-longhead \- indented paragraph with a long head
+.SH DESCRIPTION
+normal text
+.IP "This indented paragraph has ridiculously long text \
+in its head, such that it doesn't even fit on the line" 6n
+paragraph body
+.PP
+normal text

Added: vendor/mandoc/dist/regress/man/IP/longhead.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/IP/longhead.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/longhead.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+IP-LONGHEAD(1)              General Commands Manual             IP-LONGHEAD(1)
+
+
+
+NNAAMMEE
+       IP-longhead - indented paragraph with a long head
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       This indented paragraph has ridiculously long text in its head, such
+       that it doesn't even fit on the line
+             paragraph body
+
+       normal text
+
+
+
+OpenBSD                          April 8, 2014                  IP-LONGHEAD(1)

Added: vendor/mandoc/dist/regress/man/IP/manyargs.in
===================================================================
--- vendor/mandoc/dist/regress/man/IP/manyargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/manyargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,40 @@
+.\" $OpenBSD: manyargs.in,v 1.5 2017/07/04 14:53:23 schwarze Exp $
+.TH IP-MANYARGS 1 "January 4, 2011"
+.SH NAME
+IP-manyargs \- too many header args for indented blocks
+.SH DESCRIPTION
+regular
+text
+.IP tag1 10n
+indented
+text
+.PP
+regular
+text
+.IP tag2 10n tag1
+indented
+text
+.PP
+regular
+text
+.IP tag3 10n tag2 tag1
+indented
+text
+.nf
+literal
+text
+.IP tag1 10n
+indented
+text
+.PP
+literal
+text
+.IP tag2 10n tag1
+indented
+text
+.PP
+literal
+text
+.IP tag3 10n tag2 tag1
+indented
+text

Added: vendor/mandoc/dist/regress/man/IP/manyargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/IP/manyargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/manyargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,40 @@
+IP-MANYARGS(1)              General Commands Manual             IP-MANYARGS(1)
+
+
+
+NNAAMMEE
+       IP-manyargs - too many header args for indented blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag1      indented text
+
+       regular text
+
+       tag2      indented text
+
+       regular text
+
+       tag3      indented text
+                 literal
+                 text
+
+       tag1      indented
+                 text
+
+       literal
+       text
+
+       tag2      indented
+                 text
+
+       literal
+       text
+
+       tag3      indented
+                 text
+
+
+
+OpenBSD                         January 4, 2011                 IP-MANYARGS(1)

Added: vendor/mandoc/dist/regress/man/IP/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/man/IP/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: spacing.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH IP-SPACING 1 "September 21, 2015"
+.SH NAME
+IP-spacing \- spacing in indentend paragraphs
+.SH DESCRIPTION
+Normal text.
+.IP tag
+Indented text.
+.IP four
+Indented text.
+.IP ffive
+Indented text.
+.IP sixsix
+Indented text.
+.IP seseven
+Indented text.
+.IP "a much longer tag"
+Indented text.
+.LP
+Tags with trailing space:
+.IP "tag "
+Three plus one makes four.
+.IP "tag  "
+Three plus two makes five.
+.IP "tag   "
+Three plus three makes six.
+.IP "tag    "
+Three plus four makes seven.
+.IP "tag     "
+Three plus five makes eight.
+.LP
+Normal text.

Added: vendor/mandoc/dist/regress/man/IP/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/IP/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,41 @@
+IP-SPACING(1)               General Commands Manual              IP-SPACING(1)
+
+
+
+NNAAMMEE
+       IP-spacing - spacing in indentend paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+       Normal text.
+
+       tag    Indented text.
+
+       four   Indented text.
+
+       ffive  Indented text.
+
+       sixsix Indented text.
+
+       seseven
+              Indented text.
+
+       a much longer tag
+              Indented text.
+
+       Tags with trailing space:
+
+       tag    Three plus one makes four.
+
+       tag    Three plus two makes five.
+
+       tag    Three plus three makes six.
+
+       tag    Three plus four makes seven.
+
+       tag    Three plus five makes eight.
+
+       Normal text.
+
+
+
+OpenBSD                       September 21, 2015                 IP-SPACING(1)

Added: vendor/mandoc/dist/regress/man/IP/width.in
===================================================================
--- vendor/mandoc/dist/regress/man/IP/width.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/width.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,79 @@
+.\" $OpenBSD: width.in,v 1.9 2017/07/04 14:53:23 schwarze Exp $
+.TH IP-WIDTH 1 "December 23, 2014"
+.SH NAME
+IP-width \- indentation width of indented paragraphs
+.SH DESCRIPTION
+Regular mode:
+.IP tag -10n
+indented
+.br
+text
+.IP tag -0.36i
+indented
+.br
+text
+.IP tag 0n
+indented
+.br
+text
+.IP tag 1n
+indented
+.br
+text
+.IP tag 2n
+indented
+.br
+text
+.IP tag 3n
+indented
+.br
+text
+.IP tag 4n
+indented
+.br
+text
+.IP tag 5n
+indented
+.br
+text
+.IP tag xxx
+indented
+.br
+text
+.IP tag 100n
+indented
+.br
+text
+.PP
+Literal mode:
+.nf
+.IP tag -10n
+indented
+text
+.IP tag -4n
+indented
+text
+.IP tag 0n
+indented
+text
+.IP tag 1n
+indented
+text
+.IP tag 2n
+indented
+text
+.IP tag 0.26i
+indented
+text
+.IP tag 4n
+indented
+text
+.IP tag 5n
+indented
+text
+.IP tag xxx
+indented
+text
+.IP tag 100n
+indented
+text

Added: vendor/mandoc/dist/regress/man/IP/width.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/IP/width.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/IP/width.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,87 @@
+IP-WIDTH(1)                 General Commands Manual                IP-WIDTH(1)
+
+
+
+NNAAMMEE
+       IP-width - indentation width of indented paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+       Regular mode:
+
+       tag
+indented
+text
+
+       tag
+   indented
+   text
+
+       tag
+       indented
+       text
+
+       tag
+        indented
+        text
+
+       tag
+         indented
+         text
+
+       tag
+          indented
+          text
+
+       tag indented
+           text
+
+       tag  indented
+            text
+
+       tag  indented
+            text
+
+       tag                                                                                                 indented
+                                                                                                           text
+
+       Literal mode:
+
+       tag
+indented
+text
+
+       tag
+   indented
+   text
+
+       tag
+       indented
+       text
+
+       tag
+        indented
+        text
+
+       tag
+         indented
+         text
+
+       tag
+          indented
+          text
+
+       tag indented
+           text
+
+       tag  indented
+            text
+
+       tag  indented
+            text
+
+       tag                                                                                                 indented
+                                                                                                           text
+
+
+
+OpenBSD                        December 23, 2014                   IP-WIDTH(1)

Added: vendor/mandoc/dist/regress/man/MT/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/MT/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/MT/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+# $OpenBSD: Makefile,v 1.3 2015/02/06 11:54:03 schwarze Exp $
+
+REGRESS_TARGETS	 = args noME
+LINT_TARGETS	 = args noME
+
+# groff-1.22.3 defects:
+# - Without .ME, .MT does not print the address.
+# - But .ME prints <> even without .MT.
+
+SKIP_GROFF	 = noME
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/MT/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/MT/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/MT/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH MT-ARGS 1 "June 25, 2017"
+.SH NAME
+MT-args \- argument handling of the man-ext mailto macro
+.SH DESCRIPTION
+argument plus text:
+.MT test at example.com
+invalid
+address
+.ME
+.PP
+argument but no text:
+.MT test at example.com
+.ME
+.PP
+no argument, but text:
+.MT
+some text
+.ME
+.PP
+two arguments plus text:
+.MT first second
+some text
+.ME
+.PP
+two arguments, but no text:
+.MT first second
+.ME
+.PP
+final text

Added: vendor/mandoc/dist/regress/man/MT/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/MT/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/MT/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+MT-ARGS(1)                  General Commands Manual                 MT-ARGS(1)
+
+
+
+NNAAMMEE
+       MT-args - argument handling of the man-ext mailto macro
+
+DDEESSCCRRIIPPTTIIOONN
+       argument plus text: invalid address <test at example.com>
+
+       argument but no text: <test at example.com>
+
+       no argument, but text: some text <>
+
+       two arguments plus text: some text <first>
+
+       two arguments, but no text: <first>
+
+       final text
+
+
+
+OpenBSD                          June 25, 2017                      MT-ARGS(1)

Added: vendor/mandoc/dist/regress/man/MT/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/MT/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/MT/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: args.in:22:11: ERROR: skipping excess arguments: MT ... second
+mandoc: args.in:27:11: ERROR: skipping excess arguments: MT ... second
+mandoc: args.in:13:2: WARNING: empty block: MT
+mandoc: args.in:17:2: WARNING: missing resource identifier, using "": MT
+mandoc: args.in:27:2: WARNING: empty block: MT

Added: vendor/mandoc/dist/regress/man/MT/noME.in
===================================================================
--- vendor/mandoc/dist/regress/man/MT/noME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/MT/noME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: noME.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH MT-NOME 1 "June 25, 2017"
+.SH NAME
+MT-noME \- unclosed mailto macro
+.SH DESCRIPTION
+lonely ME:
+.ME
+.PP
+argument plus text:
+.MT test at example.com
+invalid
+address

Added: vendor/mandoc/dist/regress/man/MT/noME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/MT/noME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/MT/noME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+MT-NOME(1)                  General Commands Manual                 MT-NOME(1)
+
+
+
+NNAAMMEE
+       MT-noME - unclosed mailto macro
+
+DDEESSCCRRIIPPTTIIOONN
+       lonely ME:
+
+       argument plus text: invalid address <test at example.com>
+
+
+
+OpenBSD                          June 25, 2017                      MT-NOME(1)

Added: vendor/mandoc/dist/regress/man/MT/noME.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/MT/noME.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/MT/noME.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noME.in:7:2: ERROR: skipping end of block that is not open: ME
+mandoc: noME.in:10:2: ERROR: appending missing end of block: MT

Added: vendor/mandoc/dist/regress/man/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.17 2015/03/20 16:09:25 schwarze Exp $
+
+SUBDIR = B BI EX HP IP MT OP PD PP RS SH SS TH TP TS UR nf blank
+
+.include "../Makefile.sub"
+.include <bsd.subdir.mk>

Added: vendor/mandoc/dist/regress/man/Makefile.inc
===================================================================
--- vendor/mandoc/dist/regress/man/Makefile.inc	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/Makefile.inc	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile.inc,v 1.3 2015/02/03 19:37:25 schwarze Exp $
+
+SKIP_TMAN ?= ALL
+SKIP_MARKDOWN ?= ALL
+
+.include "../Makefile.inc"

Added: vendor/mandoc/dist/regress/man/OP/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/OP/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/OP/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2015/02/06 11:54:03 schwarze Exp $
+
+REGRESS_TARGETS	 = args
+LINT_TARGETS	 = args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/OP/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/OP/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/OP/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH OP-ARGS 1 "February 6, 2015"
+.SH NAME
+OP-args \- argument handling of the man-ext OP macro
+.SH DESCRIPTION
+no argument:
+.OP
+one argument:
+.OP \-f
+two arguments:
+.OP \-f arg
+three arguments:
+.OP \-f arg bogus
+final text

Added: vendor/mandoc/dist/regress/man/OP/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/OP/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/OP/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+OP-ARGS(1)                  General Commands Manual                 OP-ARGS(1)
+
+
+
+NNAAMMEE
+       OP-args - argument handling of the man-ext OP macro
+
+DDEESSCCRRIIPPTTIIOONN
+       no argument: [] one argument: [--ff] two arguments: [--ff _a_r_g] three
+       arguments: [--ff _a_r_g] final text
+
+
+
+OpenBSD                        February 6, 2015                     OP-ARGS(1)

Added: vendor/mandoc/dist/regress/man/OP/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/OP/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/OP/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: args.in:7:2: WARNING: missing option string, using "": OP
+mandoc: args.in:13:13: ERROR: skipping excess arguments: OP ... bogus

Added: vendor/mandoc/dist/regress/man/PD/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/PD/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2015/03/20 14:47:20 schwarze Exp $
+
+REGRESS_TARGETS	 = args nextline spacing
+LINT_TARGETS	 = args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/PD/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/PD/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+.\" $OpenBSD: args.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH PD-ARGS 1 "December 23, 2014"
+.SH NAME
+PD-args \- unusual arguments to the PD macro
+.SH DESCRIPTION
+initial text
+.PP
+default spacing
+.PD 2
+.PP
+argument(2)
+.PD
+.PP
+no argument at all
+.PD 2v
+.PP
+argument(2v)
+.PD 2p
+.PP
+argument(2p)
+.PD 1cx
+.PP
+argument(1cx)
+.PD xxx
+.PP
+argument(xxx)
+.PD 0 zzz
+.PP
+excessive argument

Added: vendor/mandoc/dist/regress/man/PD/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/PD/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+PD-ARGS(1)                  General Commands Manual                 PD-ARGS(1)
+
+
+
+NNAAMMEE
+       PD-args - unusual arguments to the PD macro
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+       default spacing
+
+
+       argument(2)
+
+       no argument at all
+
+
+       argument(2v)
+       argument(2p)
+
+
+       argument(1cx)
+
+
+       argument(xxx)
+       excessive argument
+
+
+
+OpenBSD                        December 23, 2014                    PD-ARGS(1)

Added: vendor/mandoc/dist/regress/man/PD/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/PD/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: args.in:27:7: ERROR: skipping excess arguments: PD ... zzz

Added: vendor/mandoc/dist/regress/man/PD/nextline.in
===================================================================
--- vendor/mandoc/dist/regress/man/PD/nextline.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/nextline.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: nextline.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH PD-NEXTLINE 1 "March 20, 2015"
+.SH NAME
+PD-nextline \- paragraph distance macro in next-line scope
+.SH DESCRIPTION
+some text
+.SH
+.PD 0v
+NEXT SECTION
+first paragraph
+.PP
+second paragraph
+.PD 1v
+.PP
+third paragraph
+.SS
+.PD 0v
+Subsection
+first paragraph
+.PP
+second paragraph
+.PD 1v
+.PP
+third paragraph
+.TP 6n
+.PD 0v
+tag
+list text
+.TP
+tag
+list text
+.PD 1v
+.TP
+tag
+list text
+.PP
+normal text
+.B
+.PD 0v
+bold text
+normal text
+.PP
+final paragraph

Added: vendor/mandoc/dist/regress/man/PD/nextline.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/PD/nextline.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/nextline.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+PD-NEXTLINE(1)              General Commands Manual             PD-NEXTLINE(1)
+
+
+
+NNAAMMEE
+       PD-nextline - paragraph distance macro in next-line scope
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+NNEEXXTT SSEECCTTIIOONN
+       first paragraph
+       second paragraph
+
+       third paragraph
+
+   SSuubbsseeccttiioonn
+       first paragraph
+       second paragraph
+
+       third paragraph
+
+       tag   list text
+       tag   list text
+
+       tag   list text
+
+       normal text bboolldd tteexxtt normal text
+       final paragraph
+
+
+
+OpenBSD                         March 20, 2015                  PD-NEXTLINE(1)

Added: vendor/mandoc/dist/regress/man/PD/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/man/PD/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,63 @@
+.\" $OpenBSD: spacing.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH PD-SPACING 1 "July 28, 2012"
+.SH NAME
+PD-spacing \- effect of the PD macro on vertical spacing
+.SH DESCRIPTION
+initial text
+.PP
+paragraph
+.HP
+hanged
+paragraph
+.IP indented
+paragraph
+.TP
+tagged
+paragraph
+.SS subsection
+subsection text
+.PD 2
+.SH DOUBLE SPACING
+initial text
+.PP
+paragraph
+.HP
+hanged
+paragraph
+.IP indented
+paragraph
+.TP
+tagged
+paragraph
+.SS subsection
+subsection text
+.PD 0
+.SH NO SPACING
+initial text
+.PP
+paragraph
+.HP
+hanged
+paragraph
+.IP indented
+paragraph
+.TP
+tagged
+paragraph
+.SS subsection
+subsection text
+.PD 1
+.SH NORMAL SPACING
+initial text
+.PP
+paragraph
+.HP
+hanged
+paragraph
+.IP indented
+paragraph
+.TP
+tagged
+paragraph
+.SS subsection
+subsection text

Added: vendor/mandoc/dist/regress/man/PD/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/PD/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PD/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,70 @@
+PD-SPACING(1)               General Commands Manual              PD-SPACING(1)
+
+
+
+NNAAMMEE
+       PD-spacing - effect of the PD macro on vertical spacing
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+       paragraph
+
+       hanged paragraph
+
+       indented
+              paragraph
+
+       tagged paragraph
+
+   ssuubbsseeccttiioonn
+       subsection text
+
+
+DDOOUUBBLLEE SSPPAACCIINNGG
+       initial text
+
+
+       paragraph
+
+
+       hanged paragraph
+
+
+       indented
+              paragraph
+
+
+       tagged paragraph
+
+
+   ssuubbsseeccttiioonn
+       subsection text
+NNOO SSPPAACCIINNGG
+       initial text
+       paragraph
+       hanged paragraph
+       indented
+              paragraph
+       tagged paragraph
+   ssuubbsseeccttiioonn
+       subsection text
+
+NNOORRMMAALL SSPPAACCIINNGG
+       initial text
+
+       paragraph
+
+       hanged paragraph
+
+       indented
+              paragraph
+
+       tagged paragraph
+
+   ssuubbsseeccttiioonn
+       subsection text
+
+
+
+OpenBSD                          July 28, 2012                   PD-SPACING(1)

Added: vendor/mandoc/dist/regress/man/PP/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/PP/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PP/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/04 16:11:41 schwarze Exp $
+
+REGRESS_TARGETS	= args empty
+LINT_TARGETS	= args empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/PP/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/PP/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PP/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH PP-ARG 1 "July 4, 2014"
+.SH NAME
+PP-arg \- paragraphs macros with arguments
+.SH DESCRIPTION
+PP with argument:
+.PP arg
+LP with arguments:
+.LP arg1 arg2
+P with argument:
+.P arg
+final text

Added: vendor/mandoc/dist/regress/man/PP/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/PP/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PP/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+PP-ARG(1)                   General Commands Manual                  PP-ARG(1)
+
+
+
+NNAAMMEE
+       PP-arg - paragraphs macros with arguments
+
+DDEESSCCRRIIPPTTIIOONN
+       PP with argument:
+
+       LP with arguments:
+
+       P with argument:
+
+       final text
+
+
+
+OpenBSD                          July 4, 2014                        PP-ARG(1)

Added: vendor/mandoc/dist/regress/man/PP/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/PP/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PP/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: args.in:7:2: ERROR: skipping all arguments: PP arg
+mandoc: args.in:9:2: ERROR: skipping all arguments: LP arg1 ...
+mandoc: args.in:11:2: ERROR: skipping all arguments: P arg

Added: vendor/mandoc/dist/regress/man/PP/empty.in
===================================================================
--- vendor/mandoc/dist/regress/man/PP/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PP/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: empty.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH PP-EMPTY 1 "May 24, 2010"
+.SH NAME
+PP-empty \- handling of empty paragraphs
+.SH DESCRIPTION
+.PP
+empty PP between two PPs:
+.PP
+.PP
+empty PP between PP and IP:
+.PP
+.IP head
+empty PP between IP and PP:
+.PP
+.PP
+the end

Added: vendor/mandoc/dist/regress/man/PP/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/PP/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PP/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+PP-EMPTY(1)                 General Commands Manual                PP-EMPTY(1)
+
+
+
+NNAAMMEE
+       PP-empty - handling of empty paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+       empty PP between two PPs:
+
+       empty PP between PP and IP:
+
+       head   empty PP between IP and PP:
+
+       the end
+
+
+
+OpenBSD                          May 24, 2010                      PP-EMPTY(1)

Added: vendor/mandoc/dist/regress/man/PP/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/PP/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/PP/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: empty.in:8:2: WARNING: skipping paragraph macro: PP empty
+mandoc: empty.in:11:2: WARNING: skipping paragraph macro: PP empty
+mandoc: empty.in:14:2: WARNING: skipping paragraph macro: PP empty

Added: vendor/mandoc/dist/regress/man/RS/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/RS/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.11 2015/04/06 13:34:54 schwarze Exp $
+
+REGRESS_TARGETS	 = an-margin breaking broken empty literal lonelyRE
+REGRESS_TARGETS	+= nested noRE nowidth REarg width
+LINT_TARGETS	 = empty lonelyRE noRE REarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/RS/REarg.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/REarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/REarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: REarg.in,v 1.3 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-REARG 1 "January 24, 2015"
+.SH NAME
+RS-REarg \- arguments to the RE macro
+.SH DESCRIPTION
+level 1
+.RS 4n 2i
+level 2
+.RS 2n
+level 3
+.RE 2a
+back to 2
+.RE 1b
+back to 1
+.RS 4n
+level 2
+.RS 2n
+level 3
+.RE 1c
+back to 1
+.RS 4n
+level 2
+.RS 2n
+level 3
+.RE 0d
+back to 1
+.RE 1e

Added: vendor/mandoc/dist/regress/man/RS/REarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/REarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/REarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+RS-REARG(1)                 General Commands Manual                RS-REARG(1)
+
+
+
+NNAAMMEE
+       RS-REarg - arguments to the RE macro
+
+DDEESSCCRRIIPPTTIIOONN
+       level 1
+           level 2
+             level 3
+           back to 2
+       back to 1
+           level 2
+             level 3
+       back to 1
+           level 2
+             level 3
+       back to 1
+
+
+
+OpenBSD                        January 24, 2015                    RS-REARG(1)

Added: vendor/mandoc/dist/regress/man/RS/REarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/RS/REarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/REarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+mandoc: REarg.in:7:8: ERROR: skipping excess arguments: RS ... 2i
+mandoc: REarg.in:11:6: ERROR: skipping excess arguments: RE ... a
+mandoc: REarg.in:13:6: ERROR: skipping excess arguments: RE ... b
+mandoc: REarg.in:19:6: ERROR: skipping excess arguments: RE ... c
+mandoc: REarg.in:25:6: ERROR: skipping excess arguments: RE ... d
+mandoc: REarg.in:27:6: ERROR: skipping excess arguments: RE ... e
+mandoc: REarg.in:27:2: ERROR: fewer RS blocks open, skipping: RE 1

Added: vendor/mandoc/dist/regress/man/RS/an-margin.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/an-margin.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/an-margin.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: an-margin.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-AN-MARGIN 1 "June 13, 2017"
+.SH NAME
+RS-an-margin \- reStructuredText peeks at an internal register
+.SH DESCRIPTION
+regular
+text
+.RS 0.0
+zero
+indent
+\n[an-margin]
+.RS 3.5
+non-zero
+indent
+\n[an-margin]
+.RE
+back to
+zero
+indent
+\n[an-margin]
+.RE
+back to
+regular
+text
+\n[an-margin]

Added: vendor/mandoc/dist/regress/man/RS/an-margin.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/an-margin.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/an-margin.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+RS-AN-MARGIN(1)             General Commands Manual            RS-AN-MARGIN(1)
+
+
+
+NNAAMMEE
+       RS-an-margin - reStructuredText peeks at an internal register
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       zero indent 168
+          non-zero indent 252
+       back to zero indent 168
+       back to regular text 168
+
+
+
+OpenBSD                          June 13, 2017                 RS-AN-MARGIN(1)

Added: vendor/mandoc/dist/regress/man/RS/breaking.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/breaking.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/breaking.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+.\" $OpenBSD: breaking.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-BREAKING 1 "7 July 2012"
+.SH NAME
+RS-breaking \- some block gets broken by an RS block
+.SH DESCRIPTION
+preceding text
+.TP 4n
+*
+item
+.RS 8n
+indented text
+.RE
+middle text
+.TP 4n
+*
+.RS 8n
+indented text
+.RE
+.\" middle text
+.\" .TP 4n
+.\" .RS 8n
+.\" indented text
+.\" .RE
+trailing text

Added: vendor/mandoc/dist/regress/man/RS/breaking.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/breaking.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/breaking.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+RS-BREAKING(1)              General Commands Manual             RS-BREAKING(1)
+
+
+
+NNAAMMEE
+       RS-breaking - some block gets broken by an RS block
+
+DDEESSCCRRIIPPTTIIOONN
+       preceding text
+
+       *   item
+               indented text
+       middle text
+
+       *
+               indented text
+       trailing text
+
+
+
+OpenBSD                           7 July 2012                   RS-BREAKING(1)

Added: vendor/mandoc/dist/regress/man/RS/broken.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+.\" $OpenBSD: broken.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-BROKEN 1 "January 24, 2015"
+.SH NAME
+RS-broken \- indented blocks broken by other blocks
+.SH DESCRIPTION
+broken by PP:
+.RS 2n
+indented
+.PP
+still indented
+.RE
+broken by IP:
+.RS
+indented
+.IP tag 6n
+first line
+.br
+second line
+.PP
+still indented
+.RE
+broken by TP:
+.RS
+indented
+.TP 6n
+tag
+first line
+.br
+second line
+.PP
+still indented
+.RE
+broken by HP:
+.RS
+indented
+.HP 2n
+Let's have a longer text here such that we can see the line break.
+.PP
+still indented
+.RE
+trailing PP:
+.RS
+indented
+.PP
+.RE
+final text

Added: vendor/mandoc/dist/regress/man/RS/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,41 @@
+RS-BROKEN(1)                General Commands Manual               RS-BROKEN(1)
+
+
+
+NNAAMMEE
+       RS-broken - indented blocks broken by other blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       broken by PP:
+         indented
+
+         still indented
+       broken by IP:
+              indented
+
+              tag   first line
+                    second line
+
+              still indented
+       broken by TP:
+              indented
+
+              tag   first line
+                    second line
+
+              still indented
+       broken by HP:
+              indented
+
+              Let's have a longer text here such that we can see the line
+                break.
+
+              still indented
+       trailing PP:
+              indented
+
+       final text
+
+
+
+OpenBSD                        January 24, 2015                   RS-BROKEN(1)

Added: vendor/mandoc/dist/regress/man/RS/empty.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-EMPTY 1 "July 17, 2012"
+.SH NAME
+RS-empty \- empty margin reset blocks
+.SH DESCRIPTION
+regular
+text
+.RS 8n
+.RE
+regular
+text
+.RS 8n
+indented
+text
+.RE
+regular
+text

Added: vendor/mandoc/dist/regress/man/RS/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+RS-EMPTY(1)                 General Commands Manual                RS-EMPTY(1)
+
+
+
+NNAAMMEE
+       RS-empty - empty margin reset blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       regular text
+               indented text
+       regular text
+
+
+
+OpenBSD                          July 17, 2012                     RS-EMPTY(1)

Added: vendor/mandoc/dist/regress/man/RS/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/RS/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: empty.in:8:2: WARNING: empty block: RS

Added: vendor/mandoc/dist/regress/man/RS/literal.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/literal.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/literal.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: literal.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-LITERAL 1 "January 5, 2013"
+.SH NAME
+RS-literal \- indented literal text
+.SH DESCRIPTION
+regular
+text
+.nf
+literal
+text
+.RS
+This is a short line.
+This is a very long line that would wrap if it weren't in literal context.
+.RE
+.PP
+literal text
+.fi
+regular
+text

Added: vendor/mandoc/dist/regress/man/RS/literal.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/literal.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/literal.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+RS-LITERAL(1)               General Commands Manual              RS-LITERAL(1)
+
+
+
+NNAAMMEE
+       RS-literal - indented literal text
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       literal
+       text
+              This is a short line.
+              This is a very long line that would wrap if it weren't in literal context.
+
+       literal text
+       regular text
+
+
+
+OpenBSD                         January 5, 2013                  RS-LITERAL(1)

Added: vendor/mandoc/dist/regress/man/RS/lonelyRE.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/lonelyRE.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/lonelyRE.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: lonelyRE.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-LONELYRE 1 "November 10, 2013"
+.SH NAME
+RS-lonelyRE \- closing RS that is not open
+.SH DESCRIPTION
+.RS
+indented text
+.RE
+.TP 6n
+tag
+body
+.RE
+out of body
+.IP tag 6n
+body
+.RE
+out of body
+.HP 6n
+Here we need some text that is long enough to span more than one
+output line, such that we can see the hanging indentation.
+.RE
+out of body

Added: vendor/mandoc/dist/regress/man/RS/lonelyRE.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/lonelyRE.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/lonelyRE.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+RS-LONELYRE(1)              General Commands Manual             RS-LONELYRE(1)
+
+
+
+NNAAMMEE
+       RS-lonelyRE - closing RS that is not open
+
+DDEESSCCRRIIPPTTIIOONN
+              indented text
+
+       tag   body
+       out of body
+
+       tag   body
+       out of body
+
+       Here we need some text that is long enough to span more than one output
+             line, such that we can see the hanging indentation.
+       out of body
+
+
+
+OpenBSD                        November 10, 2013                RS-LONELYRE(1)

Added: vendor/mandoc/dist/regress/man/RS/lonelyRE.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/RS/lonelyRE.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/lonelyRE.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: lonelyRE.in:12:2: ERROR: skipping end of block that is not open: RE
+mandoc: lonelyRE.in:16:2: ERROR: skipping end of block that is not open: RE
+mandoc: lonelyRE.in:21:2: ERROR: skipping end of block that is not open: RE

Added: vendor/mandoc/dist/regress/man/RS/nested.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/nested.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/nested.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,55 @@
+.\" $OpenBSD: nested.in,v 1.4 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-NESTED 1 "April 4, 2015"
+.SH NAME
+RS-nested \- various blocks nested inside reset blocks
+.SH DESCRIPTION
+regular
+text
+.RS
+outer
+text (default indent)
+.RS
+inner
+text (default indent)
+.RE
+outer
+text
+.RE
+regular text
+.IP tag 6n
+tagged text (6n)
+.RS
+outer text (saved 6n)
+.RS
+inner text (default indent)
+.RE
+outer text
+.RE
+regular text
+.RS 4n
+outer text (4n)
+.RS 2n
+inner text (2n)
+.RE
+outer text
+.IP indent 8n
+text (8n)
+.TP 6n
+tag
+text (6n)
+.HP 12n
+hanged
+This is very long text.
+Let's see where it will break the line,
+and which indent the next line will have - hopefully 12n.
+.PP
+outer text
+.RE
+nesting HP and RS inside RS:
+.RS
+outer text
+.HP 2n
+.RS 4n
+inner text
+.RE
+.RE

Added: vendor/mandoc/dist/regress/man/RS/nested.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/nested.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/nested.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,41 @@
+RS-NESTED(1)                General Commands Manual               RS-NESTED(1)
+
+
+
+NNAAMMEE
+       RS-nested - various blocks nested inside reset blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+              outer text (default indent)
+                     inner text (default indent)
+              outer text
+       regular text
+
+       tag   tagged text (6n)
+             outer text (saved 6n)
+                    inner text (default indent)
+             outer text
+       regular text
+           outer text (4n)
+             inner text (2n)
+           outer text
+
+           indent  text (8n)
+
+           tag   text (6n)
+
+           hanged This is very long text.  Let's see where it will break the
+                       line, and which indent the next line will have -
+                       hopefully 12n.
+
+           outer text
+       nesting HP and RS inside RS:
+             outer text
+
+
+                 inner text
+
+
+
+OpenBSD                          April 4, 2015                    RS-NESTED(1)

Added: vendor/mandoc/dist/regress/man/RS/noRE.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/noRE.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/noRE.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: noRE.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-NORE 1 "June 20, 2014"
+.SH NAME
+RS-noRE \- unclosed indented block
+.SH DESCRIPTION
+regular
+text
+.RS 8n
+indented
+text

Added: vendor/mandoc/dist/regress/man/RS/noRE.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/noRE.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/noRE.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+RS-NORE(1)                  General Commands Manual                 RS-NORE(1)
+
+
+
+NNAAMMEE
+       RS-noRE - unclosed indented block
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+               indented text
+
+
+
+OpenBSD                          June 20, 2014                      RS-NORE(1)

Added: vendor/mandoc/dist/regress/man/RS/noRE.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/RS/noRE.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/noRE.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noRE.in:8:2: ERROR: appending missing end of block: RS

Added: vendor/mandoc/dist/regress/man/RS/nowidth.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/nowidth.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/nowidth.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: nowidth.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-NESTED 1 "April 6, 2015"
+.SH NAME
+RS-nowidth \- indentation blocks not specifying a width
+.SH DESCRIPTION
+regular text
+.RS
+top-level indented list
+.RE
+regular text
+.TP 2n
+\(bu
+bullet list
+.RS
+indented text
+.RE
+regular text
+.RS
+top-level indented list
+.RE
+regular text

Added: vendor/mandoc/dist/regress/man/RS/nowidth.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/nowidth.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/nowidth.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+RS-NESTED(1)                General Commands Manual               RS-NESTED(1)
+
+
+
+NNAAMMEE
+       RS-nowidth - indentation blocks not specifying a width
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+              top-level indented list
+       regular text
+
+       +o bullet list
+         indented text
+       regular text
+         top-level indented list
+       regular text
+
+
+
+OpenBSD                          April 6, 2015                    RS-NESTED(1)

Added: vendor/mandoc/dist/regress/man/RS/width.in
===================================================================
--- vendor/mandoc/dist/regress/man/RS/width.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/width.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: width.in,v 1.5 2017/07/04 14:53:23 schwarze Exp $
+.TH RS-WIDTH 1 "December 23, 2014"
+.SH NAME
+RS-width \- negative and excessive indentation
+.SH DESCRIPTION
+regular
+text
+.RS -14n
+indented
+text
+.RE
+regular
+text
+.RS -0.36i
+indented
+text
+.RE
+regular
+text
+.RS 0.36i
+indented
+text
+.RE
+regular
+text
+.RS 100n
+indented
+text
+.RE
+regular
+text

Added: vendor/mandoc/dist/regress/man/RS/width.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/RS/width.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/RS/width.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+RS-WIDTH(1)                 General Commands Manual                RS-WIDTH(1)
+
+
+
+NNAAMMEE
+       RS-width - negative and excessive indentation
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+indented text
+       regular text
+   indented text
+       regular text
+           indented text
+       regular text
+                                                                                                           indented
+                                                                                                           text
+       regular text
+
+
+
+OpenBSD                        December 23, 2014                   RS-WIDTH(1)

Added: vendor/mandoc/dist/regress/man/SH/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/SH/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+# $OpenBSD: Makefile,v 1.4 2015/04/04 18:52:12 schwarze Exp $
+
+REGRESS_TARGETS	= broken broken_eline empty_before longarg noarg
+LINT_TARGETS	= broken broken_eline empty_before noarg
+
+# groff-1.22.3 defects:
+# - .SH without args just before EOF causes two additional blank lines.
+# - Empty .SH heads cause additional vertical spacing.
+# - If .TP or .IP breaks .SH, the tag becomes bold.
+# - If .HP breaks .SH, a line is broken after the next input line.
+# - If .RS/RE/nf/fi breaks .SH, the next input line becomes bold.
+# - .UR does not break .SH.
+# - blank line in .SH next line scope causes blank lines and bogus indent
+
+SKIP_GROFF	= broken broken_eline noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/SH/broken.in
===================================================================
--- vendor/mandoc/dist/regress/man/SH/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+.\" $OpenBSD: broken.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH SH-BROKEN 1 "July 30, 2014"
+.SH NAME
+SH-broken \- section header line scope broken by end of file
+.SH DESCRIPTION
+some text
+.SH

Added: vendor/mandoc/dist/regress/man/SH/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SH/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SH-BROKEN(1)                General Commands Manual               SH-BROKEN(1)
+
+
+
+NNAAMMEE
+       SH-broken - section header line scope broken by end of file
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                          July 30, 2014                    SH-BROKEN(1)

Added: vendor/mandoc/dist/regress/man/SH/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/SH/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: broken.in:7:2: WARNING: line scope broken: EOF breaks SH

Added: vendor/mandoc/dist/regress/man/SH/broken_eline.in
===================================================================
--- vendor/mandoc/dist/regress/man/SH/broken_eline.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/broken_eline.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+.\" $OpenBSD: broken_eline.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH SH-BROKEN_ELINE 1 "July 30, 2014"
+.SH NAME
+SH-broken_eline \- section and element line scope broken by eof
+.SH DESCRIPTION
+some text
+.SH
+.B

Added: vendor/mandoc/dist/regress/man/SH/broken_eline.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SH/broken_eline.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/broken_eline.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SH-BROKEN_ELINE(1)          General Commands Manual         SH-BROKEN_ELINE(1)
+
+
+
+NNAAMMEE
+       SH-broken_eline - section and element line scope broken by eof
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                          July 30, 2014              SH-BROKEN_ELINE(1)

Added: vendor/mandoc/dist/regress/man/SH/broken_eline.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/SH/broken_eline.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/broken_eline.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: broken_eline.in:8:2: WARNING: line scope broken: EOF breaks B
+mandoc: broken_eline.in:7:2: WARNING: line scope broken: EOF breaks SH

Added: vendor/mandoc/dist/regress/man/SH/empty_before.in
===================================================================
--- vendor/mandoc/dist/regress/man/SH/empty_before.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/empty_before.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+.\" $OpenBSD: empty_before.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH SH-EMPTY_BEFORE 1 "August 18, 2014"
+.PP
+.SH NAME
+SH-empty_before \- empty paragraph before first section header
+.SH DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/man/SH/empty_before.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SH/empty_before.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/empty_before.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SH-EMPTY_BEFORE(1)          General Commands Manual         SH-EMPTY_BEFORE(1)
+
+
+
+NNAAMMEE
+       SH-empty_before - empty paragraph before first section header
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                         August 18, 2014             SH-EMPTY_BEFORE(1)

Added: vendor/mandoc/dist/regress/man/SH/empty_before.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/SH/empty_before.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/empty_before.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: empty_before.in:3:2: WARNING: skipping paragraph macro: PP empty

Added: vendor/mandoc/dist/regress/man/SH/longarg.in
===================================================================
--- vendor/mandoc/dist/regress/man/SH/longarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/longarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: longarg.in,v 1.2 2017/07/04 14:53:23 schwarze Exp $
+.TH SH-LONGARG 1 "April 4, 2015"
+.SH NAME
+SH-longarg \- long section header lines
+.SH
+DESCRIPTION
+initial text
+.SH "This section has a really ridiculously long title\
+ which won't even fit on the line."
+custom section text

Added: vendor/mandoc/dist/regress/man/SH/longarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SH/longarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/longarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+SH-LONGARG(1)               General Commands Manual              SH-LONGARG(1)
+
+
+
+NNAAMMEE
+       SH-longarg - long section header lines
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+TThhiiss sseeccttiioonn hhaass aa rreeaallllyy rriiddiiccuulloouussllyy lloonngg ttiittllee wwhhiicchh wwoonn''tt eevveenn ffiitt oonn tthhee
+       lliinnee..
+       custom section text
+
+
+
+OpenBSD                          April 4, 2015                   SH-LONGARG(1)

Added: vendor/mandoc/dist/regress/man/SH/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/man/SH/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,47 @@
+.\" $OpenBSD: noarg.in,v 1.5 2017/07/04 14:53:23 schwarze Exp $
+.TH SH-NOARG 1 "March 20, 2015"
+.SH NAME
+SH-noarg \- empty header lines
+.SH
+.SH
+DESCRIPTION
+initial text
+.SH
+.SS Subsection
+subsection text
+.SH
+.TP 6n
+tag
+tagged list
+.SH
+.IP tag 6n
+indented list
+.SH
+.HP 6n
+This is a hanged paragraph.
+A bit more text is needed to see the effect.
+.SH
+.PP
+normal paragraph
+.SH
+.RS 6n
+indented paragraph
+.SH
+.RE
+after the end of the indented paragraph
+.SH
+.UR www.openbsd.org
+hyperlink
+.SH
+.UE
+after the end of the hyperlink
+.SH
+.nf
+no-fill mode
+.SH
+.fi
+back in fill mode
+.SH
+
+SEE ALSO
+broken(1)

Added: vendor/mandoc/dist/regress/man/SH/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SH/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+SH-NOARG(1)                 General Commands Manual                SH-NOARG(1)
+
+
+
+NNAAMMEE
+       SH-noarg - empty header lines
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+   SSuubbsseeccttiioonn
+       subsection text
+
+       tag   tagged list
+
+       tag   indented list
+
+       This is a hanged paragraph.  A bit more text is needed to see the
+             effect.
+
+       normal paragraph
+             indented paragraph
+       after the end of the indented paragraph hyperlink <www.openbsd.org>
+       after the end of the hyperlink
+
+       no-fill mode
+
+       back in fill mode
+
+SSEEEE AALLSSOO
+       broken(1)
+
+
+
+OpenBSD                         March 20, 2015                     SH-NOARG(1)

Added: vendor/mandoc/dist/regress/man/SH/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/SH/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SH/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+mandoc: noarg.in:5:2: WARNING: line scope broken: SH breaks SH
+mandoc: noarg.in:9:2: WARNING: line scope broken: SS breaks SH
+mandoc: noarg.in:12:2: WARNING: line scope broken: TP breaks SH
+mandoc: noarg.in:16:2: WARNING: line scope broken: IP breaks SH
+mandoc: noarg.in:19:2: WARNING: line scope broken: HP breaks SH
+mandoc: noarg.in:23:2: WARNING: line scope broken: PP breaks SH
+mandoc: noarg.in:26:2: WARNING: line scope broken: RS breaks SH
+mandoc: noarg.in:29:2: WARNING: line scope broken: RE breaks SH
+mandoc: noarg.in:30:2: ERROR: skipping end of block that is not open: RE
+mandoc: noarg.in:32:2: WARNING: line scope broken: UR breaks SH
+mandoc: noarg.in:35:2: WARNING: line scope broken: UE breaks SH
+mandoc: noarg.in:36:2: ERROR: skipping end of block that is not open: UE
+mandoc: noarg.in:42:2: STYLE: fill mode already enabled, skipping: fi
+mandoc: noarg.in:45:1: WARNING: skipping blank line in line scope

Added: vendor/mandoc/dist/regress/man/SS/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/SS/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+# $OpenBSD: Makefile,v 1.2 2015/04/04 18:52:12 schwarze Exp $
+
+REGRESS_TARGETS	= broken broken_eline longarg noarg
+LINT_TARGETS	= broken broken_eline noarg
+
+# groff-1.22.3 defects:
+# - .SS without args just before EOF causes two additional blank lines.
+# - Empty .SS heads cause additional vertical spacing.
+# - If .TP or .IP breaks .SS, the tag becomes bold.
+# - If .HP breaks .SS, a line is broken after the next input line.
+# - If .RS/RE/nf/fi breaks .SS, the next input line becomes bold.
+# - .UR does not break .SS.
+# - blank line in .SS next-line scope causes a blank line
+
+SKIP_GROFF	= broken broken_eline noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/SS/broken.in
===================================================================
--- vendor/mandoc/dist/regress/man/SS/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+.\" $OpenBSD: broken.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH SS-BROKEN 1 "July 30, 2014"
+.SH NAME
+SS-broken \- section header line scope broken by end of file
+.SH DESCRIPTION
+some text
+.SS

Added: vendor/mandoc/dist/regress/man/SS/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SS/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SS-BROKEN(1)                General Commands Manual               SS-BROKEN(1)
+
+
+
+NNAAMMEE
+       SS-broken - section header line scope broken by end of file
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                          July 30, 2014                    SS-BROKEN(1)

Added: vendor/mandoc/dist/regress/man/SS/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/SS/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: broken.in:7:2: WARNING: line scope broken: EOF breaks SS

Added: vendor/mandoc/dist/regress/man/SS/broken_eline.in
===================================================================
--- vendor/mandoc/dist/regress/man/SS/broken_eline.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/broken_eline.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+.\" $OpenBSD: broken_eline.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH SS-BROKEN_ELINE 1 "July 30, 2014"
+.SH NAME
+SS-broken_eline \- subsection and element line scope broken by eof
+.SH DESCRIPTION
+some text
+.SS
+.B

Added: vendor/mandoc/dist/regress/man/SS/broken_eline.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SS/broken_eline.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/broken_eline.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SS-BROKEN_ELINE(1)          General Commands Manual         SS-BROKEN_ELINE(1)
+
+
+
+NNAAMMEE
+       SS-broken_eline - subsection and element line scope broken by eof
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                          July 30, 2014              SS-BROKEN_ELINE(1)

Added: vendor/mandoc/dist/regress/man/SS/broken_eline.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/SS/broken_eline.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/broken_eline.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: broken_eline.in:8:2: WARNING: line scope broken: EOF breaks B
+mandoc: broken_eline.in:7:2: WARNING: line scope broken: EOF breaks SS

Added: vendor/mandoc/dist/regress/man/SS/longarg.in
===================================================================
--- vendor/mandoc/dist/regress/man/SS/longarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/longarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: longarg.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH SS-LONGARG 1 "April 4, 2015"
+.SH NAME
+SS-longarg \- long subsection header lines
+.SH
+DESCRIPTION
+initial text
+.SS
+This subsection has a ridiculously long title which won't even fit on the line.
+subsection text

Added: vendor/mandoc/dist/regress/man/SS/longarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SS/longarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/longarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+SS-LONGARG(1)               General Commands Manual              SS-LONGARG(1)
+
+
+
+NNAAMMEE
+       SS-longarg - long subsection header lines
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+   TThhiiss ssuubbsseeccttiioonn hhaass aa rriiddiiccuulloouussllyy lloonngg ttiittllee wwhhiicchh wwoonn''tt eevveenn ffiitt oonn tthhee
+       lliinnee..
+       subsection text
+
+
+
+OpenBSD                          April 4, 2015                   SS-LONGARG(1)

Added: vendor/mandoc/dist/regress/man/SS/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/man/SS/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,47 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH SS-NOARG 1 "March 20, 2015"
+.SH NAME
+SS-noarg \- empty subsection header lines
+.SS
+.SH
+DESCRIPTION
+initial text
+.SS
+.SS Subsection
+subsection text
+.SS
+.TP 6n
+tag
+tagged list
+.SS
+.IP tag 6n
+indented list
+.SS
+.HP 6n
+This is a hanged paragraph.
+A bit more text is needed to see the effect.
+.SS
+.PP
+normal paragraph
+.SS
+.RS 6n
+indented paragraph
+.SS
+.RE
+after the end of the indented paragraph
+.SS
+.UR www.openbsd.org
+hyperlink
+.SS
+.UE
+after the end of the hyperlink
+.SS
+.nf
+no-fill mode
+.SS
+.fi
+back in fill mode
+.SS
+
+Subsection
+with a blank line

Added: vendor/mandoc/dist/regress/man/SS/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/SS/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+SS-NOARG(1)                 General Commands Manual                SS-NOARG(1)
+
+
+
+NNAAMMEE
+       SS-noarg - empty subsection header lines
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+   SSuubbsseeccttiioonn
+       subsection text
+
+       tag   tagged list
+
+       tag   indented list
+
+       This is a hanged paragraph.  A bit more text is needed to see the
+             effect.
+
+       normal paragraph
+             indented paragraph
+       after the end of the indented paragraph hyperlink <www.openbsd.org>
+       after the end of the hyperlink
+
+       no-fill mode
+
+       back in fill mode
+
+   SSuubbsseeccttiioonn
+       with a blank line
+
+
+
+OpenBSD                         March 20, 2015                     SS-NOARG(1)

Added: vendor/mandoc/dist/regress/man/SS/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/SS/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/SS/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+mandoc: noarg.in:5:2: WARNING: line scope broken: SH breaks SS
+mandoc: noarg.in:9:2: WARNING: line scope broken: SS breaks SS
+mandoc: noarg.in:12:2: WARNING: line scope broken: TP breaks SS
+mandoc: noarg.in:16:2: WARNING: line scope broken: IP breaks SS
+mandoc: noarg.in:19:2: WARNING: line scope broken: HP breaks SS
+mandoc: noarg.in:23:2: WARNING: line scope broken: PP breaks SS
+mandoc: noarg.in:26:2: WARNING: line scope broken: RS breaks SS
+mandoc: noarg.in:29:2: WARNING: line scope broken: RE breaks SS
+mandoc: noarg.in:30:2: ERROR: skipping end of block that is not open: RE
+mandoc: noarg.in:32:2: WARNING: line scope broken: UR breaks SS
+mandoc: noarg.in:35:2: WARNING: line scope broken: UE breaks SS
+mandoc: noarg.in:36:2: ERROR: skipping end of block that is not open: UE
+mandoc: noarg.in:42:2: STYLE: fill mode already enabled, skipping: fi
+mandoc: noarg.in:45:1: WARNING: skipping blank line in line scope

Added: vendor/mandoc/dist/regress/man/TH/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/TH/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+# $OpenBSD: Makefile,v 1.9 2015/02/06 11:54:03 schwarze Exp $
+
+REGRESS_TARGETS  = noTH noarg onearg twoargs sixargs case longtit longvol
+REGRESS_TARGETS += emptydate onlyyear isodate mdocdate baddate longdate
+REGRESS_TARGETS += nobody
+
+LINT_TARGETS	 = noTH noarg onearg twoargs sixargs case
+LINT_TARGETS	+= emptydate baddate longdate nobody
+
+SKIP_GROFF	 = noTH longtit longvol longdate
+SKIP_ASCII	 = noTH
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/TH/baddate.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/baddate.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/baddate.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: baddate.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-BADDATE 1 "three bad words" source
+.SH NAME
+TH-baddate \- the date has three words, but bad ones
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/baddate.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/baddate.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/baddate.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-BADDATE(1)               General Commands Manual              TH-BADDATE(1)
+
+
+
+NNAAMMEE
+       TH-baddate - the date has three words, but bad ones
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source                          three bad words                  TH-BADDATE(1)

Added: vendor/mandoc/dist/regress/man/TH/baddate.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/baddate.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/baddate.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: baddate.in:2:18: WARNING: cannot parse date, using it verbatim: three bad words

Added: vendor/mandoc/dist/regress/man/TH/case.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/case.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/case.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: case.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-case 1 "June 13, 2014"
+.SH NAME
+TH-case \- document title is not all caps
+.SH DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/man/TH/case.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/case.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/case.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-case(1)                  General Commands Manual                 TH-case(1)
+
+
+
+NNAAMMEE
+       TH-case - document title is not all caps
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                          June 13, 2014                      TH-case(1)

Added: vendor/mandoc/dist/regress/man/TH/case.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/case.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/case.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: case.in:2:8: STYLE: lower case character in document title: TH TH-case

Added: vendor/mandoc/dist/regress/man/TH/emptydate.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/emptydate.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/emptydate.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: emptydate.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-EMPTYDATE 1 "" source
+.SH NAME
+TH-emptydate \- an empty date string
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/emptydate.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/emptydate.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/emptydate.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-EMPTYDATE(1)             General Commands Manual            TH-EMPTYDATE(1)
+
+
+
+NNAAMMEE
+       TH-emptydate - an empty date string
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source                                                         TH-EMPTYDATE(1)

Added: vendor/mandoc/dist/regress/man/TH/emptydate.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/emptydate.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/emptydate.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: emptydate.in:2:20: WARNING: missing date, using today's date: TH

Added: vendor/mandoc/dist/regress/man/TH/isodate.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/isodate.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/isodate.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: isodate.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-ISODATE 1 "2011-07-02" source
+.SH NAME
+TH-isodate \- ISO date format
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/isodate.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/isodate.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/isodate.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-ISODATE(1)               General Commands Manual              TH-ISODATE(1)
+
+
+
+NNAAMMEE
+       TH-isodate - ISO date format
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source                            2011-07-02                     TH-ISODATE(1)

Added: vendor/mandoc/dist/regress/man/TH/longdate.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/longdate.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/longdate.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: longdate.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-LONGDATE 1 "1234567890123456789012345678901234567890123456789012345678901234567890123456789012" source
+.SH NAME
+TH-longdate \- the date is longer than the line length
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/longdate.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/longdate.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/longdate.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+TH-LONGDATE(1)              General Commands Manual             TH-LONGDATE(1)
+
+
+
+NNAAMMEE
+       TH-longdate - the date is longer than the line length
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source
+1234567890123456789012345678901234567890123456789012345678901234567890123456789012
+                                                                TH-LONGDATE(1)

Added: vendor/mandoc/dist/regress/man/TH/longdate.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/longdate.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/longdate.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: longdate.in:2:19: WARNING: cannot parse date, using it verbatim: 1234567890123456789012345678901234567890123456789012345678901234567890123456789012

Added: vendor/mandoc/dist/regress/man/TH/longtit.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/longtit.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/longtit.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: longtit.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-LONGTIT-23456789012345678901234567890123456789012345678901234567890123456789 1 "November 20, 2014" source
+.SH NAME
+TH-longtit \- the title is longer than the line length
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/longtit.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/longtit.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/longtit.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+TH-LONGTIT-23456789012345678901234567890123456789012345678901234567890123456789(1)
+                                                       General Commands Manual
+
+
+
+NNAAMMEE
+       TH-longtit - the title is longer than the line length
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source                         November 20, 2014
+TH-LONGTIT-23456789012345678901234567890123456789012345678901234567890123456789(1)

Added: vendor/mandoc/dist/regress/man/TH/longvol.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/longvol.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/longvol.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: longvol.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-LONGVOL 1 "November 20, 2014" source 1234567890123456789012345678901234567890123456789012345678901234567890123456789
+.SH NAME
+TH-longvol \- the volume string is longer than the line length
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/longvol.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/longvol.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/longvol.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+TH-LONGVOL(1)
+1234567890123456789012345678901234567890123456789012345678901234567890123456789
+
+
+
+NNAAMMEE
+       TH-longvol - the volume string is longer than the line length
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source                         November 20, 2014                 TH-LONGVOL(1)

Added: vendor/mandoc/dist/regress/man/TH/mdocdate.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/mdocdate.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/mdocdate.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: mdocdate.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-MDOCDATE 1 "July 2, 2011" source
+.SH NAME
+TH-mdocdate \- standard mdoc(7) date format
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/mdocdate.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/mdocdate.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/mdocdate.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-MDOCDATE(1)              General Commands Manual             TH-MDOCDATE(1)
+
+
+
+NNAAMMEE
+       TH-mdocdate - standard mdoc(7) date format
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source                           July 2, 2011                   TH-MDOCDATE(1)

Added: vendor/mandoc/dist/regress/man/TH/noTH.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/noTH.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/noTH.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+.\" $OpenBSD: noTH.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.SH NAME
+TH-noTH \- TH macro missing
+.SH DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/man/TH/noTH.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/noTH.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/noTH.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noTH.in: WARNING: missing manual title, using ""
+mandoc: noTH.in: WARNING: missing date, using today's date

Added: vendor/mandoc/dist/regress/man/TH/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH
+.SH NAME
+TH-noarg \- no arguments to the TH macro
+.SH DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/man/TH/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+()                                                                          ()
+
+
+
+NNAAMMEE
+       TH-noarg - no arguments to the TH macro
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                                                                     ()

Added: vendor/mandoc/dist/regress/man/TH/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: noarg.in:2:2: WARNING: missing manual title, using "": TH
+mandoc: noarg.in:2:2: WARNING: missing manual section, using "": TH 
+mandoc: noarg.in:2:2: WARNING: missing date, using today's date: TH

Added: vendor/mandoc/dist/regress/man/TH/nobody.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/nobody.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/nobody.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+.\" $OpenBSD: nobody.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-NOBODY 1 "June 20, 2014"

Added: vendor/mandoc/dist/regress/man/TH/nobody.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/nobody.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/nobody.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+TH-NOBODY(1)                General Commands Manual               TH-NOBODY(1)
+
+
+
+OpenBSD                          June 20, 2014                    TH-NOBODY(1)

Added: vendor/mandoc/dist/regress/man/TH/nobody.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/nobody.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/nobody.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: nobody.in: WARNING: no document body

Added: vendor/mandoc/dist/regress/man/TH/onearg.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/onearg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/onearg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: onearg.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-ONEARG
+.SH NAME
+TH-onearg \- only one argument to the TH macro
+.SH DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/man/TH/onearg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/onearg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/onearg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-ONEARG()                                                        TH-ONEARG()
+
+
+
+NNAAMMEE
+       TH-onearg - only one argument to the TH macro
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                                                            TH-ONEARG()

Added: vendor/mandoc/dist/regress/man/TH/onearg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/onearg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/onearg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: onearg.in:2:2: WARNING: missing manual section, using "": TH TH-ONEARG
+mandoc: onearg.in:2:2: WARNING: missing date, using today's date: TH

Added: vendor/mandoc/dist/regress/man/TH/onlyyear.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/onlyyear.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/onlyyear.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: onlyyear.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-ONLYYEAR 1 2011 source
+.SH NAME
+TH-onlyyear \- the date has only a year
+.SH DESCRIPTION
+Some text.

Added: vendor/mandoc/dist/regress/man/TH/onlyyear.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/onlyyear.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/onlyyear.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-ONLYYEAR(1)              General Commands Manual             TH-ONLYYEAR(1)
+
+
+
+NNAAMMEE
+       TH-onlyyear - the date has only a year
+
+DDEESSCCRRIIPPTTIIOONN
+       Some text.
+
+
+
+source                               2011                       TH-ONLYYEAR(1)

Added: vendor/mandoc/dist/regress/man/TH/sixargs.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/sixargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/sixargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: sixargs.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-SIXARGS 1 "January 16, 2011" OpenBSD regress SIX
+.SH NAME
+TH-sixargs \- six arguments to the TH macro
+.SH DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/man/TH/sixargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/sixargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/sixargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-SIXARGS(1)                       regress                      TH-SIXARGS(1)
+
+
+
+NNAAMMEE
+       TH-sixargs - six arguments to the TH macro
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                        January 16, 2011                  TH-SIXARGS(1)

Added: vendor/mandoc/dist/regress/man/TH/sixargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/sixargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/sixargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: sixargs.in:2:53: ERROR: skipping excess arguments: TH ... SIX

Added: vendor/mandoc/dist/regress/man/TH/twoargs.in
===================================================================
--- vendor/mandoc/dist/regress/man/TH/twoargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/twoargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: twoargs.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TH-TWOARGS
+.SH NAME
+TH-twoargs \- only two arguments to the TH macro
+.SH DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/man/TH/twoargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TH/twoargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/twoargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TH-TWOARGS()                                                      TH-TWOARGS()
+
+
+
+NNAAMMEE
+       TH-twoargs - only two arguments to the TH macro
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+
+
+
+OpenBSD                                                           TH-TWOARGS()

Added: vendor/mandoc/dist/regress/man/TH/twoargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TH/twoargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TH/twoargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: twoargs.in:2:2: WARNING: missing manual section, using "": TH TH-TWOARGS
+mandoc: twoargs.in:2:2: WARNING: missing date, using today's date: TH

Added: vendor/mandoc/dist/regress/man/TP/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/TP/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+# $OpenBSD: Makefile,v 1.12 2015/09/21 13:24:32 schwarze Exp $
+
+REGRESS_TARGETS	 = badarg broken double eof fill indent literal longhead
+REGRESS_TARGETS	+= macrotag manyargs sameline spacing width
+
+LINT_TARGETS	 = broken double eof
+
+# groff-1.22.3 defects:
+# - If .TP precedes .RE, the latter does not properly reset indentation.
+# - If the last line of the file is .TP, groff does not print a page footer.
+# - A blank line in .TP next line scope causes a blank line.
+
+SKIP_GROFF	 = broken eof
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/TP/badarg.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/badarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/badarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: badarg.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-BADARG 1 "November 18, 2012"
+.SH NAME
+TP-badarg \- invalid width specification for tagged paragraph
+.SH DESCRIPTION
+Non-numeric width specifications are ignored:
+.TP x
+tag
+indented
+.br
+text
+.TP xxxxx
+tag
+indented
+.br
+text
+.TP xxxxxxxxxx
+tag
+indented
+.br
+text

Added: vendor/mandoc/dist/regress/man/TP/badarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/badarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/badarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+TP-BADARG(1)                General Commands Manual               TP-BADARG(1)
+
+
+
+NNAAMMEE
+       TP-badarg - invalid width specification for tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN
+       Non-numeric width specifications are ignored:
+
+       tag    indented
+              text
+
+       tag    indented
+              text
+
+       tag    indented
+              text
+
+
+
+OpenBSD                        November 18, 2012                  TP-BADARG(1)

Added: vendor/mandoc/dist/regress/man/TP/broken.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: broken.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-BROKEN 1 "December 16, 2014"
+.SH NAME
+TP-broken \- broken tagged paragraph
+.SH DESCRIPTION
+regular
+text
+.RS 4n
+indented
+text
+.TP
+.RE
+regular
+text
+.TP
+
+head
+body

Added: vendor/mandoc/dist/regress/man/TP/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+TP-BROKEN(1)                General Commands Manual               TP-BROKEN(1)
+
+
+
+NNAAMMEE
+       TP-broken - broken tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+           indented text
+       regular text
+
+       head   body
+
+
+
+OpenBSD                        December 16, 2014                  TP-BROKEN(1)

Added: vendor/mandoc/dist/regress/man/TP/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TP/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: broken.in:11:2: WARNING: line scope broken: RE breaks TP
+mandoc: broken.in:16:1: WARNING: skipping blank line in line scope

Added: vendor/mandoc/dist/regress/man/TP/double.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/double.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/double.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,41 @@
+.\" $OpenBSD: double.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-DOUBLE 1 2013-06-23
+.SH NAME
+TP-double \- effect of double tagged paragraph
+.SH DESCRIPTION
+leading text:
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?
+.TP 16n
+first TP
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?
+.TP 16n
+second TP
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?
+.PP
+normal paragraph:
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?
+.PP
+.TP 16n
+.TP 16n
+double TP
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?
+.PP
+normal paragraph:
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?
+.B
+.PP
+.TP 16n
+.TP 16n
+double TP
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?
+.PP
+normal paragraph:
+This is a rather long text because we want to test the text width;
+at which point will this text wrap to the next line?

Added: vendor/mandoc/dist/regress/man/TP/double.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/double.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/double.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,39 @@
+TP-DOUBLE(1)                General Commands Manual               TP-DOUBLE(1)
+
+
+
+NNAAMMEE
+       TP-double - effect of double tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN
+       leading text: This is a rather long text because we want to test the
+       text width; at which point will this text wrap to the next line?
+
+       first TP        This is a rather long text because we want to test the
+                       text width; at which point will this text wrap to the
+                       next line?
+
+       second TP       This is a rather long text because we want to test the
+                       text width; at which point will this text wrap to the
+                       next line?
+
+       normal paragraph: This is a rather long text because we want to test
+       the text width; at which point will this text wrap to the next line?
+
+       double TP       This is a rather long text because we want to test the
+                       text width; at which point will this text wrap to the
+                       next line?
+
+       normal paragraph: This is a rather long text because we want to test
+       the text width; at which point will this text wrap to the next line?
+
+       double TP       This is a rather long text because we want to test the
+                       text width; at which point will this text wrap to the
+                       next line?
+
+       normal paragraph: This is a rather long text because we want to test
+       the text width; at which point will this text wrap to the next line?
+
+
+
+OpenBSD                           2013-06-23                      TP-DOUBLE(1)

Added: vendor/mandoc/dist/regress/man/TP/double.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TP/double.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/double.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: double.in:22:2: WARNING: line scope broken: TP breaks TP
+mandoc: double.in:31:2: WARNING: line scope broken: PP breaks B
+mandoc: double.in:33:2: WARNING: line scope broken: TP breaks TP
+mandoc: double.in:21:2: WARNING: skipping paragraph macro: PP empty
+mandoc: double.in:32:2: WARNING: skipping paragraph macro: PP empty

Added: vendor/mandoc/dist/regress/man/TP/eof.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/eof.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/eof.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+.\" $OpenBSD: eof.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-EOF 1 "July 7, 2014"
+.SH NAME
+TP-eof \- indented paragraph macro at the end of the file
+.SH DESCRIPTION
+The last line of the file is TP:
+.TP

Added: vendor/mandoc/dist/regress/man/TP/eof.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/eof.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/eof.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TP-EOF(1)                   General Commands Manual                  TP-EOF(1)
+
+
+
+NNAAMMEE
+       TP-eof - indented paragraph macro at the end of the file
+
+DDEESSCCRRIIPPTTIIOONN
+       The last line of the file is TP:
+
+
+
+OpenBSD                          July 7, 2014                        TP-EOF(1)

Added: vendor/mandoc/dist/regress/man/TP/eof.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TP/eof.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/eof.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: eof.in:7:2: WARNING: line scope broken: EOF breaks TP

Added: vendor/mandoc/dist/regress/man/TP/fill.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/fill.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/fill.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: fill.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-FILL 1 "September 4, 2015"
+.SH NAME
+TP-fill \- interaction of tagged paragraphs and fill mode
+.SH DESCRIPTION
+Switching off fill mode:
+.TP
+.nf
+tag
+indented
+text
+Switching it back on:
+.fi
+.TP
+This is an extremely long tag that will certainly wrap the line and continue onto the next one.
+indented
+text

Added: vendor/mandoc/dist/regress/man/TP/fill.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/fill.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/fill.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+TP-FILL(1)                  General Commands Manual                 TP-FILL(1)
+
+
+
+NNAAMMEE
+       TP-fill - interaction of tagged paragraphs and fill mode
+
+DDEESSCCRRIIPPTTIIOONN
+       Switching off fill mode:
+
+       tag    indented
+              text
+              Switching it back on:
+
+       This is an extremely long tag that will certainly wrap the line and
+       continue onto the next one.
+              indented text
+
+
+
+OpenBSD                        September 4, 2015                    TP-FILL(1)

Added: vendor/mandoc/dist/regress/man/TP/indent.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/indent.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/indent.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: indent.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-INDENT 1 "June 17, 2017"
+.SH NAME
+TP-indent \- indent request inside TP head
+.SH DESCRIPTION
+initial text
+.TP 2n
+tag
+indented
+.TP 8n
+.in 3n
+tag
+indented
+.PP
+final text

Added: vendor/mandoc/dist/regress/man/TP/indent.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/indent.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/indent.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+TP-INDENT(1)                General Commands Manual               TP-INDENT(1)
+
+
+
+NNAAMMEE
+       TP-indent - indent request inside TP head
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+       tag
+         indented
+
+          tag  indented
+
+       final text
+
+
+
+OpenBSD                          June 17, 2017                    TP-INDENT(1)

Added: vendor/mandoc/dist/regress/man/TP/literal.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/literal.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/literal.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: literal.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-LITERAL 1 "January 4, 2011"
+.SH NAME
+TP-literal \- indented paragraphs in literal context
+.SH DESCRIPTION
+regular
+text
+.TP 10n
+tag
+indented
+text
+.PP
+regular
+text
+.nf
+literal
+text
+.TP 10n
+tag
+indented
+text
+.PP
+literal
+text
+.fi
+regular
+text

Added: vendor/mandoc/dist/regress/man/TP/literal.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/literal.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/literal.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+TP-LITERAL(1)               General Commands Manual              TP-LITERAL(1)
+
+
+
+NNAAMMEE
+       TP-literal - indented paragraphs in literal context
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag       indented text
+
+       regular text
+       literal
+       text
+
+       tag       indented
+                 text
+
+       literal
+       text
+       regular text
+
+
+
+OpenBSD                         January 4, 2011                  TP-LITERAL(1)

Added: vendor/mandoc/dist/regress/man/TP/longhead.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/longhead.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/longhead.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: longhead.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-LONGHEAD 1 "April 8, 2014"
+.SH NAME
+TP-longhead \- tagged paragraph with a long head
+.SH DESCRIPTION
+normal text
+.TP 6n
+.B "This tagged paragraph has ridiculously long text \
+in its head, such that it doesn't even fit on the line"
+paragraph body
+.PP
+normal text

Added: vendor/mandoc/dist/regress/man/TP/longhead.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/longhead.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/longhead.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+TP-LONGHEAD(1)              General Commands Manual             TP-LONGHEAD(1)
+
+
+
+NNAAMMEE
+       TP-longhead - tagged paragraph with a long head
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       TThhiiss ttaaggggeedd ppaarraaggrraapphh hhaass rriiddiiccuulloouussllyy lloonngg tteexxtt iinn iittss hheeaadd,, ssuucchh tthhaatt
+       iitt ddooeessnn''tt eevveenn ffiitt oonn tthhee lliinnee
+             paragraph body
+
+       normal text
+
+
+
+OpenBSD                          April 8, 2014                  TP-LONGHEAD(1)

Added: vendor/mandoc/dist/regress/man/TP/macrotag.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/macrotag.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/macrotag.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: macrotag.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-MACROTAG 1 "September 20, 2011"
+.SH NAME
+TP-macrotag \- macro in the head of a tagged paragraph
+.SH DESCRIPTION
+regular
+text
+.TP
+.B longindent
+indented
+text
+.PP
+regular
+text

Added: vendor/mandoc/dist/regress/man/TP/macrotag.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/macrotag.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/macrotag.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+TP-MACROTAG(1)              General Commands Manual             TP-MACROTAG(1)
+
+
+
+NNAAMMEE
+       TP-macrotag - macro in the head of a tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       lloonnggiinnddeenntt
+              indented text
+
+       regular text
+
+
+
+OpenBSD                       September 20, 2011                TP-MACROTAG(1)

Added: vendor/mandoc/dist/regress/man/TP/manyargs.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/manyargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/manyargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+.\" $OpenBSD: manyargs.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-MANYARGS 1 "January 4, 2011"
+.SH NAME
+TP-manyargs \- too many header args for indented blocks
+.SH DESCRIPTION
+regular
+text
+.TP 10n
+tag1
+indented
+text
+.PP
+regular
+text
+.TP 10n tag1
+tag2
+indented
+text
+.PP
+regular
+text
+.TP 10n tag2 tag1
+tag3
+indented
+text
+.nf
+literal
+text
+.TP 10n
+tag1
+indented
+text
+.PP
+literal
+text
+.TP 10n tag1
+tag2
+indented
+text
+.PP
+literal
+text
+.TP 10n tag2 tag1
+tag3
+indented
+text

Added: vendor/mandoc/dist/regress/man/TP/manyargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/manyargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/manyargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,40 @@
+TP-MANYARGS(1)              General Commands Manual             TP-MANYARGS(1)
+
+
+
+NNAAMMEE
+       TP-manyargs - too many header args for indented blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag1      indented text
+
+       regular text
+
+       tag2      indented text
+
+       regular text
+
+       tag3      indented text
+                 literal
+                 text
+
+       tag1      indented
+                 text
+
+       literal
+       text
+
+       tag2      indented
+                 text
+
+       literal
+       text
+
+       tag3      indented
+                 text
+
+
+
+OpenBSD                         January 4, 2011                 TP-MANYARGS(1)

Added: vendor/mandoc/dist/regress/man/TP/sameline.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/sameline.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/sameline.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: sameline.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-SAMELINE 1 "March 8, 2014"
+.SH NAME
+TP-sameline \- test sameline logic of indented paragraphs
+.SH DESCRIPTION
+.SS without user-defined macros
+with width:
+.TP 6n
+tag
+text
+.PP
+without width:
+.TP
+20n
+text
+.SS with user-defined macros
+.de mylist
+with width:
+.TP 6n
+tag
+text
+..
+.mylist
+.PP
+.de mylist
+without width:
+.TP
+20n
+text
+..
+.mylist

Added: vendor/mandoc/dist/regress/man/TP/sameline.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/sameline.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/sameline.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+TP-SAMELINE(1)              General Commands Manual             TP-SAMELINE(1)
+
+
+
+NNAAMMEE
+       TP-sameline - test sameline logic of indented paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+   wwiitthhoouutt uusseerr--ddeeffiinneedd mmaaccrrooss
+       with width:
+
+       tag   text
+
+       without width:
+
+       20n    text
+
+   wwiitthh uusseerr--ddeeffiinneedd mmaaccrrooss
+       with width:
+
+       tag   text
+
+       without width:
+
+       20n    text
+
+
+
+OpenBSD                          March 8, 2014                  TP-SAMELINE(1)

Added: vendor/mandoc/dist/regress/man/TP/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: spacing.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-SPACING 1 "September 21, 2015"
+.SH NAME
+TP-spacing \- spacing in tagged paragraphs
+.SH DESCRIPTION
+Normal text.
+.TP
+tag
+Indented text.
+.TP
+four
+Indented text.
+.TP
+ffive
+Indented text.
+.TP
+sixsix
+Indented text.
+.TP
+seseven
+Indented text.
+.TP
+a much longer tag
+Indented text.
+.LP
+Tags with trailing space:
+.TP
+tag\ \&
+Three plus one makes four.
+.TP
+tag\ \ \&
+Three plus two makes five.
+.TP
+tag\ \ \ \&
+Three plus three makes six.
+.TP
+tag\ \ \ \ \ \&
+Three plus four makes seven.
+.TP
+tag\ \ \ \ \ \ \&
+Three plus five makes eight.
+.LP
+Normal text.

Added: vendor/mandoc/dist/regress/man/TP/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+TP-SPACING(1)               General Commands Manual              TP-SPACING(1)
+
+
+
+NNAAMMEE
+       TP-spacing - spacing in tagged paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+       Normal text.
+
+       tag    Indented text.
+
+       four   Indented text.
+
+       ffive  Indented text.
+
+       sixsix Indented text.
+
+       seseven
+              Indented text.
+
+       a much longer tag
+              Indented text.
+
+       Tags with trailing space:
+
+       tag    Three plus one makes four.
+
+       tag    Three plus two makes five.
+
+       tag    Three plus three makes six.
+
+       tag
+              Three plus four makes seven.
+
+       tag
+              Three plus five makes eight.
+
+       Normal text.
+
+
+
+OpenBSD                       September 21, 2015                 TP-SPACING(1)

Added: vendor/mandoc/dist/regress/man/TP/width.in
===================================================================
--- vendor/mandoc/dist/regress/man/TP/width.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/width.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,90 @@
+.\" $OpenBSD: width.in,v 1.6 2017/07/04 14:53:24 schwarze Exp $
+.TH TP-WIDTH 1 "December 23, 2014"
+.SH NAME
+TP-width \- indentation width of indented paragraphs
+.SH DESCRIPTION
+Regular mode:
+.TP -10n
+tag
+indented
+.br
+text
+.TP -0.36i
+tag
+indented
+.br
+text
+.TP 0n
+tag
+indented
+.br
+text
+.TP 1n
+tag
+indented
+.br
+text
+.TP 0.16i
+tag
+indented
+.br
+text
+.TP 3n
+tag
+indented
+.br
+text
+.TP 4n
+tag
+indented
+.br
+text
+.TP 5n
+tag
+indented
+.br
+text
+.TP 100n
+tag
+indented
+.br
+text
+.PP
+Literal mode:
+.nf
+.TP -0.96i
+tag
+indented
+text
+.TP -4n
+tag
+indented
+text
+.TP 0n
+tag
+indented
+text
+.TP 1n
+tag
+indented
+text
+.TP 2n
+tag
+indented
+text
+.TP 0.26i
+tag
+indented
+text
+.TP 4n
+tag
+indented
+text
+.TP 5n
+tag
+indented
+text
+.TP 100n
+tag
+indented
+text

Added: vendor/mandoc/dist/regress/man/TP/width.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TP/width.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TP/width.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,81 @@
+TP-WIDTH(1)                 General Commands Manual                TP-WIDTH(1)
+
+
+
+NNAAMMEE
+       TP-width - indentation width of indented paragraphs
+
+DDEESSCCRRIIPPTTIIOONN
+       Regular mode:
+
+       tag
+indented
+text
+
+       tag
+   indented
+   text
+
+       tag
+       indented
+       text
+
+       tag
+        indented
+        text
+
+       tag
+         indented
+         text
+
+       tag
+          indented
+          text
+
+       tag indented
+           text
+
+       tag  indented
+            text
+
+       tag                                                                                                 indented
+                                                                                                           text
+
+       Literal mode:
+
+       tag
+indented
+text
+
+       tag
+   indented
+   text
+
+       tag
+       indented
+       text
+
+       tag
+        indented
+        text
+
+       tag
+         indented
+         text
+
+       tag
+          indented
+          text
+
+       tag indented
+           text
+
+       tag  indented
+            text
+
+       tag                                                                                                 indented
+                                                                                                           text
+
+
+
+OpenBSD                        December 23, 2014                   TP-WIDTH(1)

Added: vendor/mandoc/dist/regress/man/TS/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/TS/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TS/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+# $OpenBSD: Makefile,v 1.3 2015/01/30 21:28:21 schwarze Exp $
+
+REGRESS_TARGETS	= break vspace
+LINT_TARGETS	= break
+
+# groff-1.22.3 defect:
+# - Starting a table in next-line scope confuses font handling,
+#   and in the case of .TP indentation as well.
+
+SKIP_GROFF	= break
+
+
+# OpenBSD only: maintainer targets
+
+TBL=/usr/local/bin/tbl
+
+.for t in ${REGRESS_TARGETS}
+${t}.out_ascii: ${t}.in
+	${TBL} ${.ALLSRC} | ${NROFF} ${NOPTS} -Tascii > ${.TARGET}
+.endfor
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/TS/break.in
===================================================================
--- vendor/mandoc/dist/regress/man/TS/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TS/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH TBL-BREAK 1 "January 30, 2015"
+.SH NAME
+tbl-break \- tables breaking blocks
+.SH DESCRIPTION
+tagged paragraph:
+.TP 6n
+.TS
+l.
+first line
+second line
+.TE
+section:
+.SH
+.TS
+l.
+first line
+second line
+.TE
+subsection:
+.SS
+.TS
+l.
+first line
+second line
+.TE
+bold:
+.B
+.TS
+l.
+first line
+second line
+.TE
+final text

Added: vendor/mandoc/dist/regress/man/TS/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TS/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TS/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+TBL-BREAK(1)                General Commands Manual               TBL-BREAK(1)
+
+
+
+NNAAMMEE
+       tbl-break - tables breaking blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       tagged paragraph:
+
+       first line
+       second line
+       section:
+
+       first line
+       second line
+       subsection:
+
+       first line
+       second line
+       bold:
+
+       first line
+       second line
+       final text
+
+
+
+OpenBSD                        January 30, 2015                   TBL-BREAK(1)

Added: vendor/mandoc/dist/regress/man/TS/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/TS/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TS/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: break.in:7:2: WARNING: line scope broken: TS breaks TP
+mandoc: break.in:14:2: WARNING: line scope broken: TS breaks SH
+mandoc: break.in:21:2: WARNING: line scope broken: TS breaks SS
+mandoc: break.in:28:2: WARNING: line scope broken: TS breaks B

Added: vendor/mandoc/dist/regress/man/TS/vspace.in
===================================================================
--- vendor/mandoc/dist/regress/man/TS/vspace.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TS/vspace.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+.\" $OpenBSD: vspace.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH TBL-VSPACE 1 "May 27, 2012"
+.SH NAME
+tbl-vspace \- vertical spacing around tables
+.SH DESCRIPTION
+normal text before table
+.TS
+L .
+table without box
+.TE
+normal text after table without box
+.TS
+box;
+L .
+table with box
+.TE
+.\" at least one vertical space is required here
+.\" or groff will clobber the box
+.sp 1v
+normal text after table with box
+.TS
+doublebox;
+L .
+table with double box
+.TE
+.\" at least two vertical spaces are required here
+.\" or groff will clobber the box
+.sp 2v
+normal text after table with double box
+.TS
+L .
+table without box
+.TE
+.TS
+box;
+L .
+table with box
+.TE
+.sp 1v
+.TS
+doublebox;
+L .
+table with double box
+.TE
+.sp 2v
+.TS
+L .
+table without box
+.TE

Added: vendor/mandoc/dist/regress/man/TS/vspace.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/TS/vspace.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/TS/vspace.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+TBL-VSPACE(1)               General Commands Manual              TBL-VSPACE(1)
+
+
+
+NNAAMMEE
+       tbl-vspace - vertical spacing around tables
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text before table
+
+       table without box
+       normal text after table without box
+
+       +---------------+
+       |table with box |
+       +---------------+
+       normal text after table with box
+
+       +----------------------+
+       +----------------------+
+       |table with double box |
+       +----------------------+
+       +----------------------+
+       normal text after table with double box
+
+       table without box
+
+       +---------------+
+       |table with box |
+       +---------------+
+
+       +----------------------+
+       +----------------------+
+       |table with double box |
+       +----------------------+
+       +----------------------+
+
+       table without box
+
+
+
+OpenBSD                          May 27, 2012                    TBL-VSPACE(1)

Added: vendor/mandoc/dist/regress/man/UR/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/UR/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/UR/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+# $OpenBSD: Makefile,v 1.3 2015/02/06 11:54:03 schwarze Exp $
+
+REGRESS_TARGETS	 = args noUE
+LINT_TARGETS	 = args noUE
+
+# groff-1.22.3 defects:
+# - Without .UE, .UR does not print the URI.
+# - But .UE prints <> even without .UR.
+
+SKIP_GROFF	 = noUE
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/UR/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/UR/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/UR/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH UR-ARGS 1 "October 17, 2013"
+.SH NAME
+UR-basic \- argument handling of the man-ext URI macro
+.SH DESCRIPTION
+argument plus text:
+.UR http://www.openbsd.org/
+OpenBSD
+homepage
+.UE
+.PP
+argument but no text:
+.UR http://www.netbsd.org/
+.UE
+.PP
+no argument, but text:
+.UR
+some text
+.UE
+.PP
+two arguments plus text:
+.UR first second
+some text
+.UE
+.PP
+two arguments, but no text:
+.UR first second
+.UE
+.PP
+final text

Added: vendor/mandoc/dist/regress/man/UR/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/UR/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/UR/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+UR-ARGS(1)                  General Commands Manual                 UR-ARGS(1)
+
+
+
+NNAAMMEE
+       UR-basic - argument handling of the man-ext URI macro
+
+DDEESSCCRRIIPPTTIIOONN
+       argument plus text: OpenBSD homepage <http://www.openbsd.org/>
+
+       argument but no text: <http://www.netbsd.org/>
+
+       no argument, but text: some text <>
+
+       two arguments plus text: some text <first>
+
+       two arguments, but no text: <first>
+
+       final text
+
+
+
+OpenBSD                        October 17, 2013                     UR-ARGS(1)

Added: vendor/mandoc/dist/regress/man/UR/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/UR/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/UR/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: args.in:22:11: ERROR: skipping excess arguments: UR ... second
+mandoc: args.in:27:11: ERROR: skipping excess arguments: UR ... second
+mandoc: args.in:13:2: WARNING: empty block: UR
+mandoc: args.in:17:2: WARNING: missing resource identifier, using "": UR
+mandoc: args.in:27:2: WARNING: empty block: UR

Added: vendor/mandoc/dist/regress/man/UR/noUE.in
===================================================================
--- vendor/mandoc/dist/regress/man/UR/noUE.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/UR/noUE.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: noUE.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH UR-NOUE 1 "July 7, 2014"
+.SH NAME
+UR-noUE \- unclosed URI macro
+.SH DESCRIPTION
+lonely UE:
+.UE
+.PP
+argument plus text:
+.UR http://www.openbsd.org/
+OpenBSD
+homepage

Added: vendor/mandoc/dist/regress/man/UR/noUE.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/UR/noUE.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/UR/noUE.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+UR-NOUE(1)                  General Commands Manual                 UR-NOUE(1)
+
+
+
+NNAAMMEE
+       UR-noUE - unclosed URI macro
+
+DDEESSCCRRIIPPTTIIOONN
+       lonely UE:
+
+       argument plus text: OpenBSD homepage <http://www.openbsd.org/>
+
+
+
+OpenBSD                          July 7, 2014                       UR-NOUE(1)

Added: vendor/mandoc/dist/regress/man/UR/noUE.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/UR/noUE.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/UR/noUE.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noUE.in:7:2: ERROR: skipping end of block that is not open: UE
+mandoc: noUE.in:10:2: ERROR: appending missing end of block: UR

Added: vendor/mandoc/dist/regress/man/blank/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/blank/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2014/07/02 05:51:49 schwarze Exp $
+
+REGRESS_TARGETS = line afterSH afterSS
+LINT_TARGETS	= line afterSH afterSS
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/blank/afterSH.in
===================================================================
--- vendor/mandoc/dist/regress/man/blank/afterSH.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/afterSH.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,78 @@
+.\" $OpenBSD: afterSH.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH BLANK-AFTERSH 1 "November 10, 2013"
+.SH NAME
+blank-afterSH \- handling of blank lines right after a section heading
+.SH DESCRIPTION
+
+blank line before text
+.SH DESCRIPTION 2
+
+.PP
+blank line before PP
+.SH DESCRIPTION 3
+
+.RS 6n
+blank line before RS
+.RE
+.SH DESCRIPTION 4
+
+.IP TAG
+blank line before an indented paragraph
+.SH DESCRIPTION 5
+
+.TP
+TAG
+blank line before a tagged paragraph
+.SH DESCRIPTION 6
+
+.HP
+blank line before a hanged paragraph
+.SH DESCRIPTION 7
+
+.br
+blank line before br
+.SH DESCRIPTION 8
+
+.sp
+blank line before sp
+.SH DESCRIPTION 10
+
+
+double blank line before text
+.SH DESCRIPTION 12
+
+
+.PP
+double blank line before PP
+.SH DESCRIPTION 13
+
+
+.RS 6n
+double blank line before RS
+.RE
+.SH DESCRIPTION 14
+
+
+.IP TAG
+double blank line before an indented paragraph
+.SH DESCRIPTION 15
+
+
+.TP
+TAG
+double blank line before a tagged paragraph
+.SH DESCRIPTION 16
+
+
+.HP
+double blank line before a hanged paragraph
+.SH DESCRIPTION 17
+
+
+.br
+double blank line before br
+.SH DESCRIPTION 18
+
+
+.sp
+double blank line before sp

Added: vendor/mandoc/dist/regress/man/blank/afterSH.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/blank/afterSH.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/afterSH.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,58 @@
+BLANK-AFTERSH(1)            General Commands Manual           BLANK-AFTERSH(1)
+
+
+
+NNAAMMEE
+       blank-afterSH - handling of blank lines right after a section heading
+
+DDEESSCCRRIIPPTTIIOONN
+       blank line before text
+
+DDEESSCCRRIIPPTTIIOONN 22
+       blank line before PP
+
+DDEESSCCRRIIPPTTIIOONN 33
+             blank line before RS
+
+DDEESSCCRRIIPPTTIIOONN 44
+       TAG    blank line before an indented paragraph
+
+DDEESSCCRRIIPPTTIIOONN 55
+       TAG    blank line before a tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN 66
+       blank line before a hanged paragraph
+
+DDEESSCCRRIIPPTTIIOONN 77
+       blank line before br
+
+DDEESSCCRRIIPPTTIIOONN 88
+       blank line before sp
+
+DDEESSCCRRIIPPTTIIOONN 1100
+       double blank line before text
+
+DDEESSCCRRIIPPTTIIOONN 1122
+       double blank line before PP
+
+DDEESSCCRRIIPPTTIIOONN 1133
+             double blank line before RS
+
+DDEESSCCRRIIPPTTIIOONN 1144
+       TAG    double blank line before an indented paragraph
+
+DDEESSCCRRIIPPTTIIOONN 1155
+       TAG    double blank line before a tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN 1166
+       double blank line before a hanged paragraph
+
+DDEESSCCRRIIPPTTIIOONN 1177
+       double blank line before br
+
+DDEESSCCRRIIPPTTIIOONN 1188
+       double blank line before sp
+
+
+
+OpenBSD                        November 10, 2013              BLANK-AFTERSH(1)

Added: vendor/mandoc/dist/regress/man/blank/afterSH.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/blank/afterSH.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/afterSH.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: afterSH.in:32:2: WARNING: skipping paragraph macro: br after SH
+mandoc: afterSH.in:36:2: WARNING: skipping paragraph macro: sp after SH
+mandoc: afterSH.in:72:2: WARNING: skipping paragraph macro: br after SH
+mandoc: afterSH.in:77:2: WARNING: skipping paragraph macro: sp after SH

Added: vendor/mandoc/dist/regress/man/blank/afterSS.in
===================================================================
--- vendor/mandoc/dist/regress/man/blank/afterSS.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/afterSS.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,79 @@
+.\" $OpenBSD: afterSS.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH BLANK-AFTERSS 1 "November 10, 2013"
+.SH NAME
+blank-afterSS \- handling of blank lines right after a subsection heading
+.SH DESCRIPTION
+.SS 1
+
+blank line before text
+.SS 2
+
+.PP
+blank line before PP
+.SS 3
+
+.RS 6n
+blank line before RS
+.RE
+.SS 4
+
+.IP TAG
+blank line before an indented paragraph
+.SS 5
+
+.TP
+TAG
+blank line before a tagged paragraph
+.SS 6
+
+.HP
+blank line before a hanged paragraph
+.SS 7
+
+.br
+blank line before br
+.SS 8
+
+.sp
+blank line before sp
+.SS 10
+
+
+double blank line before text
+.SS 12
+
+
+.PP
+double blank line before PP
+.SS 13
+
+
+.RS 6n
+double blank line before RS
+.RE
+.SS 14
+
+
+.IP TAG
+double blank line before an indented paragraph
+.SS 15
+
+
+.TP
+TAG
+double blank line before a tagged paragraph
+.SS 16
+
+
+.HP
+double blank line before a hanged paragraph
+.SS 17
+
+
+.br
+double blank line before br
+.SS 18
+
+
+.sp
+double blank line before sp

Added: vendor/mandoc/dist/regress/man/blank/afterSS.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/blank/afterSS.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/afterSS.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,60 @@
+BLANK-AFTERSS(1)            General Commands Manual           BLANK-AFTERSS(1)
+
+
+
+NNAAMMEE
+       blank-afterSS - handling of blank lines right after a subsection
+       heading
+
+DDEESSCCRRIIPPTTIIOONN
+   11
+       blank line before text
+
+   22
+       blank line before PP
+
+   33
+             blank line before RS
+
+   44
+       TAG    blank line before an indented paragraph
+
+   55
+       TAG    blank line before a tagged paragraph
+
+   66
+       blank line before a hanged paragraph
+
+   77
+       blank line before br
+
+   88
+       blank line before sp
+
+   1100
+       double blank line before text
+
+   1122
+       double blank line before PP
+
+   1133
+             double blank line before RS
+
+   1144
+       TAG    double blank line before an indented paragraph
+
+   1155
+       TAG    double blank line before a tagged paragraph
+
+   1166
+       double blank line before a hanged paragraph
+
+   1177
+       double blank line before br
+
+   1188
+       double blank line before sp
+
+
+
+OpenBSD                        November 10, 2013              BLANK-AFTERSS(1)

Added: vendor/mandoc/dist/regress/man/blank/afterSS.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/blank/afterSS.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/afterSS.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: afterSS.in:33:2: WARNING: skipping paragraph macro: br after SS
+mandoc: afterSS.in:37:2: WARNING: skipping paragraph macro: sp after SS
+mandoc: afterSS.in:73:2: WARNING: skipping paragraph macro: br after SS
+mandoc: afterSS.in:78:2: WARNING: skipping paragraph macro: sp after SS

Added: vendor/mandoc/dist/regress/man/blank/line.in
===================================================================
--- vendor/mandoc/dist/regress/man/blank/line.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/line.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,87 @@
+.\" $OpenBSD: line.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH BLANK-LINE 1 "July 14, 2012"
+.SH NAME
+blank-line \- handling of blank lines
+.SH DESCRIPTION
+.sp
+.PP
+Single br:
+.br
+Single PP:
+.PP
+Single sp:
+.sp
+Single blank:
+
+Double br:
+.br
+.br
+br PP:
+.br
+.PP
+PP br:
+.PP
+.br
+Double PP:
+.PP
+.PP
+br sp:
+.br
+.sp
+sp br:
+.sp
+.br
+PP sp:
+.PP
+.sp
+PP sp 2v:
+.PP
+.sp 2v
+sp PP:
+.sp
+.PP
+Double sp:
+.sp
+.sp
+br blank:
+.br
+
+blank br:
+
+.br
+PP blank:
+.PP
+
+blank PP:
+
+.PP
+sp blank:
+.sp
+
+blank sp:
+
+.sp
+Double blank:
+
+
+RS sp 2v:
+.RS 6n
+.sp 2v
+RE sp 2v:
+.RE
+.sp 2v
+IP sp 2v:
+.IP tag 6n
+.sp 2v
+TP sp 2v:
+.TP 6n
+tag
+.sp 2v
+SH sp 2v:
+.SH CUSTOM
+.sp 2v
+SS sp PP:
+.SS subsection
+.sp
+.PP
+End.

Added: vendor/mandoc/dist/regress/man/blank/line.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/blank/line.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/line.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,81 @@
+BLANK-LINE(1)               General Commands Manual              BLANK-LINE(1)
+
+
+
+NNAAMMEE
+       blank-line - handling of blank lines
+
+DDEESSCCRRIIPPTTIIOONN
+       Single br:
+       Single PP:
+
+       Single sp:
+
+       Single blank:
+
+       Double br:
+       br PP:
+
+       PP br:
+
+       Double PP:
+
+       br sp:
+
+       sp br:
+
+       PP sp:
+
+       PP sp 2v:
+
+       sp PP:
+
+
+       Double sp:
+
+
+       br blank:
+
+       blank br:
+
+       PP blank:
+
+       blank PP:
+
+
+       sp blank:
+
+
+       blank sp:
+
+
+       Double blank:
+
+
+       RS sp 2v:
+
+
+             RE sp 2v:
+
+
+       IP sp 2v:
+
+       tag
+
+
+             TP sp 2v:
+
+       tag
+
+
+             SH sp 2v:
+
+CCUUSSTTOOMM
+       SS sp PP:
+
+   ssuubbsseeccttiioonn
+       End.
+
+
+
+OpenBSD                          July 14, 2012                   BLANK-LINE(1)

Added: vendor/mandoc/dist/regress/man/blank/line.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/blank/line.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/blank/line.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+mandoc: line.in:6:2: WARNING: skipping paragraph macro: sp after SH
+mandoc: line.in:24:2: WARNING: skipping paragraph macro: br after PP
+mandoc: line.in:26:2: WARNING: skipping paragraph macro: PP empty
+mandoc: line.in:36:2: WARNING: skipping paragraph macro: sp after PP
+mandoc: line.in:39:2: WARNING: skipping paragraph macro: sp after PP
+mandoc: line.in:54:1: WARNING: skipping paragraph macro: sp after PP
+mandoc: line.in:82:2: WARNING: skipping paragraph macro: sp after SH
+mandoc: line.in:85:2: WARNING: skipping paragraph macro: sp after SS

Added: vendor/mandoc/dist/regress/man/nf/Makefile
===================================================================
--- vendor/mandoc/dist/regress/man/nf/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.7 2015/02/06 08:28:04 schwarze Exp $
+
+REGRESS_TARGETS = indent args vert dupe userdef
+LINT_TARGETS	= args dupe
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/man/nf/args.in
===================================================================
--- vendor/mandoc/dist/regress/man/nf/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: args.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.TH NF-ARGS 1 "January 16, 2011"
+.SH NAME
+nf-args \- filling macros with arguments
+.SH DESCRIPTION
+regular
+text
+.nf arg1 arg2 arg3
+literal
+text
+.fi arg1 arg2 arg3
+regular
+text

Added: vendor/mandoc/dist/regress/man/nf/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/nf/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+NF-ARGS(1)                  General Commands Manual                 NF-ARGS(1)
+
+
+
+NNAAMMEE
+       nf-args - filling macros with arguments
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       literal
+       text
+       regular text
+
+
+
+OpenBSD                        January 16, 2011                     NF-ARGS(1)

Added: vendor/mandoc/dist/regress/man/nf/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/nf/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: args.in:8:5: ERROR: skipping all arguments: nf arg1 arg2 arg3
+mandoc: args.in:11:5: ERROR: skipping all arguments: fi arg1 arg2 arg3

Added: vendor/mandoc/dist/regress/man/nf/dupe.in
===================================================================
--- vendor/mandoc/dist/regress/man/nf/dupe.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/dupe.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: dupe.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH NF-DUPE 1 "July 2, 2014"
+.SH NAME
+nf-dupe \- duplicate filling macros
+.SH DESCRIPTION
+regular
+text
+.fi
+still
+regular
+text
+.nf
+literal
+text
+.nf
+still
+literal
+text

Added: vendor/mandoc/dist/regress/man/nf/dupe.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/nf/dupe.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/dupe.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+NF-DUPE(1)                  General Commands Manual                 NF-DUPE(1)
+
+
+
+NNAAMMEE
+       nf-dupe - duplicate filling macros
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       still regular text
+       literal
+       text
+       still
+       literal
+       text
+
+
+
+OpenBSD                          July 2, 2014                       NF-DUPE(1)

Added: vendor/mandoc/dist/regress/man/nf/dupe.out_lint
===================================================================
--- vendor/mandoc/dist/regress/man/nf/dupe.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/dupe.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: dupe.in:8:2: STYLE: fill mode already enabled, skipping: fi
+mandoc: dupe.in:15:2: STYLE: fill mode already disabled, skipping: nf

Added: vendor/mandoc/dist/regress/man/nf/indent.in
===================================================================
--- vendor/mandoc/dist/regress/man/nf/indent.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/indent.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: indent.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.TH NF-INDENT 1 "January 4, 2011"
+.SH NAME
+nf-indent \- indentation of literal blocks
+.SH DESCRIPTION
+Here comes
+an indented block:
+.nf
+oneword
+two words
+and three words
+This is a very long line; because it is indented, it is a bit too long to fit.
+blank line:
+
+line with only a zero-width space:
+\&
+line with only a normal space character:
+ 
+end of literal
+.fi
+He is some more
+regular text.

Added: vendor/mandoc/dist/regress/man/nf/indent.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/nf/indent.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/indent.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+NF-INDENT(1)                General Commands Manual               NF-INDENT(1)
+
+
+
+NNAAMMEE
+       nf-indent - indentation of literal blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       Here comes an indented block:
+       oneword
+       two words
+       and three words
+       This is a very long line; because it is indented, it is a bit too long to fit.
+       blank line:
+
+       line with only a zero-width space:
+
+       line with only a normal space character:
+
+       end of literal
+       He is some more regular text.
+
+
+
+OpenBSD                         January 4, 2011                   NF-INDENT(1)

Added: vendor/mandoc/dist/regress/man/nf/userdef.in
===================================================================
--- vendor/mandoc/dist/regress/man/nf/userdef.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/userdef.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: userdef.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH NF-USERDEF 1 "March 8, 2014"
+.SH NAME
+nf-userdef \- setting unfilled mode via user-defined macros
+.SH DESCRIPTION
+filled
+text
+.nf
+unfilled
+text
+.fi
+filled
+text
+.de MYBLOCK
+.nf
+unfilled
+text
+.fi
+filled
+text
+..
+.MYBLOCK

Added: vendor/mandoc/dist/regress/man/nf/userdef.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/nf/userdef.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/userdef.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+NF-USERDEF(1)               General Commands Manual              NF-USERDEF(1)
+
+
+
+NNAAMMEE
+       nf-userdef - setting unfilled mode via user-defined macros
+
+DDEESSCCRRIIPPTTIIOONN
+       filled text
+       unfilled
+       text
+       filled text
+       unfilled
+       text
+       filled text
+
+
+
+OpenBSD                          March 8, 2014                   NF-USERDEF(1)

Added: vendor/mandoc/dist/regress/man/nf/vert.in
===================================================================
--- vendor/mandoc/dist/regress/man/nf/vert.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/vert.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+.\" $OpenBSD: vert.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.TH NF-VERT 1 "June 2, 2012"
+.SH NAME
+nf-vert \- spacing around filling macros
+.SH DESCRIPTION
+regular
+text
+.nf
+literal
+text
+.fi
+regular
+text
+.br
+.nf
+literal
+text
+.br
+.fi
+regular
+text
+.sp
+.nf
+literal
+text
+.sp
+.fi
+regular
+text

Added: vendor/mandoc/dist/regress/man/nf/vert.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/man/nf/vert.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/man/nf/vert.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+NF-VERT(1)                  General Commands Manual                 NF-VERT(1)
+
+
+
+NNAAMMEE
+       nf-vert - spacing around filling macros
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+       literal
+       text
+       regular text
+       literal
+       text
+       regular text
+
+       literal
+       text
+
+       regular text
+
+
+
+OpenBSD                          June 2, 2012                       NF-VERT(1)

Added: vendor/mandoc/dist/regress/mdoc/Ad/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS	= noarg font
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ad/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AD-FONT 1
+.Os
+.Sh NAME
+.Nm Ad-font
+.Nd changing fonts inside the address macro
+.Sh DESCRIPTION
+normal text
+.Ad emphasis\\fBbold\\fPback | after ":" punctuation "Sy" bold
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Ad/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+AD-FONT(1)                  General Commands Manual                 AD-FONT(1)
+
+NNAAMMEE
+     AAdd--ffoonntt - changing fonts inside the address macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k | _a_f_t_e_r: _p_u_n_c_t_u_a_t_i_o_n bboolldd trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ad/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+AD-FONT(1) - General Commands Manual
+
+# NAME
+
+**Ad-font** - changing fonts inside the address macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back* | *after*: *punctuation* **bold**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ad/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AD-NOARG 1
+.Os
+.Sh NAME
+.Nm Ad-noarg
+.Nd address macro without an argument
+.Sh DESCRIPTION
+with address:
+.Ad 0x3bc.
+no address:
+.Ad
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+AD-NOARG(1)                 General Commands Manual                AD-NOARG(1)
+
+NNAAMMEE
+     AAdd--nnooaarrgg - address macro without an argument
+
+DDEESSCCRRIIPPTTIIOONN
+     with address: _0_x_3_b_c_. no address: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Ad
+mandoc: noarg.in:10:10: STYLE: no blank before trailing delimiter: Ad 0x3bc.

Added: vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ad/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+AD-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Ad-noarg** - address macro without an argument
+
+# DESCRIPTION
+
+with address:
+*0x3bc.*
+no address:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/An/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/An/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/An/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2014/08/14 02:00:52 schwarze Exp $
+
+REGRESS_TARGETS	= break
+LINT_TARGETS	= break
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/An/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/An/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/An/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,50 @@
+.\" $OpenBSD: break.in,v 1.7 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AN-BREAK 1
+.Os
+.Sh NAME
+.Nm An-break
+.Nd line breaking of the author macro
+.Sh DESCRIPTION
+inline is the default:
+.An Kristaps ,
+.An Ingo ","
+and
+.An Joerg .
+empty
+.An
+trailing
+.An .
+.Pp
+.An -split -nosplit bogus
+split mode:
+.An Kristaps
+.An Ingo
+.An Joerg
+.Pp
+empty
+.An
+trailing
+.An .
+.An -nosplit
+.Sh AUTHORS
+split mode is the default:
+.An Kristaps
+.An Ingo
+.An Joerg
+.Pp
+empty
+.An
+trailing
+.An .
+.An -nosplit -split bogus
+.Pp
+inline:
+.An Kristaps ","
+.An Ingo,
+and
+.An Joerg .
+empty
+.An
+trailing
+.An .

Added: vendor/mandoc/dist/regress/mdoc/An/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/An/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/An/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+AN-BREAK(1)                 General Commands Manual                AN-BREAK(1)
+
+NNAAMMEE
+     AAnn--bbrreeaakk - line breaking of the author macro
+
+DDEESSCCRRIIPPTTIIOONN
+     inline is the default: Kristaps, Ingo, and Joerg.  empty trailing .
+
+     split mode:
+     Kristaps
+     Ingo
+     Joerg
+
+     empty
+     trailing
+     .
+
+AAUUTTHHOORRSS
+     split mode is the default: Kristaps
+     Ingo
+     Joerg
+
+     empty
+     trailing
+     .
+
+     inline: Kristaps, Ingo, and Joerg.  empty trailing .
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/An/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/An/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/An/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+mandoc: break.in:15:2: WARNING: skipping empty macro: An
+mandoc: break.in:17:2: WARNING: skipping empty macro: An
+mandoc: break.in:19:12: WARNING: skipping duplicate argument: An -nosplit
+mandoc: break.in:19:21: ERROR: skipping excess arguments: An ... bogus
+mandoc: break.in:26:2: WARNING: skipping empty macro: An
+mandoc: break.in:28:2: WARNING: skipping empty macro: An
+mandoc: break.in:37:2: WARNING: skipping empty macro: An
+mandoc: break.in:39:2: WARNING: skipping empty macro: An
+mandoc: break.in:40:14: WARNING: skipping duplicate argument: An -split
+mandoc: break.in:40:21: ERROR: skipping excess arguments: An ... bogus
+mandoc: break.in:44:9: STYLE: no blank before trailing delimiter: An Ingo,
+mandoc: break.in:48:2: WARNING: skipping empty macro: An
+mandoc: break.in:50:2: WARNING: skipping empty macro: An

Added: vendor/mandoc/dist/regress/mdoc/An/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/An/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/An/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,47 @@
+AN-BREAK(1) - General Commands Manual
+
+# NAME
+
+**An-break** - line breaking of the author macro
+
+# DESCRIPTION
+
+inline is the default:
+Kristaps,
+Ingo,
+and
+Joerg.
+empty
+trailing
+.
+
+split mode:  
+Kristaps  
+Ingo  
+Joerg
+
+empty  
+trailing  
+.
+
+# AUTHORS
+
+split mode is the default:
+Kristaps  
+Ingo  
+Joerg
+
+empty  
+trailing  
+.
+
+inline:
+Kristaps,
+Ingo,
+and
+Joerg.
+empty
+trailing
+.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ap/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ap/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ap/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.2 2012/11/16 18:40:39 schwarze Exp $
+
+REGRESS_TARGETS = middle eos
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ap/eos.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ap/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ap/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: eos.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AP-EOS 1
+.Os
+.Sh NAME
+.Nm Ap-eos
+.Nd end of sentence handling after the apostrophe macro
+.Sh DESCRIPTION
+The first sentence is
+.An Ingo Ap s .
+The second is
+.An Kristaps Ap .
+No idea about the third.

Added: vendor/mandoc/dist/regress/mdoc/Ap/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ap/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ap/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+AP-EOS(1)                   General Commands Manual                  AP-EOS(1)
+
+NNAAMMEE
+     AApp--eeooss - end of sentence handling after the apostrophe macro
+
+DDEESSCCRRIIPPTTIIOONN
+     The first sentence is Ingo's.  The second is Kristaps'.  No idea about
+     the third.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ap/eos.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ap/eos.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ap/eos.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+AP-EOS(1) - General Commands Manual
+
+# NAME
+
+**Ap-eos** - end of sentence handling after the apostrophe macro
+
+# DESCRIPTION
+
+The first sentence is
+Ingo's.
+The second is
+Kristaps'.
+No idea about the third.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ap/middle.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ap/middle.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ap/middle.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: middle.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AP-MIDDLE 1
+.Os
+.Sh NAME
+.Nm Ap-middle
+.Nd apostrophe in the middle of a macro line
+.Sh DESCRIPTION
+.Xr mandoc 1 Ap s
+.Pp
+punctuation and called macros:
+.Sy bold Ap ( "Sy" bold

Added: vendor/mandoc/dist/regress/mdoc/Ap/middle.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ap/middle.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ap/middle.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+AP-MIDDLE(1)                General Commands Manual               AP-MIDDLE(1)
+
+NNAAMMEE
+     AApp--mmiiddddllee - apostrophe in the middle of a macro line
+
+DDEESSCCRRIIPPTTIIOONN
+     mandoc(1)'s
+
+     punctuation and called macros: bboolldd'(bboolldd
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ap/middle.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ap/middle.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ap/middle.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+AP-MIDDLE(1) - General Commands Manual
+
+# NAME
+
+**Ap-middle** - apostrophe in the middle of a macro line
+
+# DESCRIPTION
+
+mandoc(1)'s
+
+punctuation and called macros:
+**bold**'(**bold**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Aq/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.2 2014/11/19 21:59:20 schwarze Exp $
+
+REGRESS_TARGETS	= author empty
+UTF8_TARGETS	= author empty
+LINT_TARGETS	= empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Aq/author.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/author.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/author.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: author.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AQ-AUTHOR 1
+.Os
+.Sh NAME
+.Nm Aq-author
+.Nd angle brackets after an author name macro
+.Sh DESCRIPTION
+.An Name Ao Mt addr Ac An Name Aq Mt addr
+.Sh AUTHORS
+.An Name Ao Mt addr Ac An Name Aq Mt addr

Added: vendor/mandoc/dist/regress/mdoc/Aq/author.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/author.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/author.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+AQ-AUTHOR(1)                General Commands Manual               AQ-AUTHOR(1)
+
+NNAAMMEE
+     AAqq--aauutthhoorr - angle brackets after an author name macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Name <_a_d_d_r> Name <_a_d_d_r>
+
+AAUUTTHHOORRSS
+     Name <_a_d_d_r>
+     Name <_a_d_d_r>
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Aq/author.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/author.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/author.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+AQ-AUTHOR(1) - General Commands Manual
+
+# NAME
+
+**Aq-author** - angle brackets after an author name macro
+
+# DESCRIPTION
+
+Name <[addr](mailto:addr)> Name <[addr](mailto:addr)>
+
+# AUTHORS
+
+Name <[addr](mailto:addr)>  
+Name <[addr](mailto:addr)>
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Aq/author.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/author.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/author.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+AQ-AUTHOR(1)                General Commands Manual               AQ-AUTHOR(1)
+
+NNAAMMEE
+     AAqq--aauutthhoorr – angle brackets after an author name macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Name <_a_d_d_r> Name <_a_d_d_r>
+
+AAUUTTHHOORRSS
+     Name <_a_d_d_r>
+     Name <_a_d_d_r>
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Aq/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: empty.in,v 1.5 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AQ-EMPTY 1
+.Os
+.Sh NAME
+.Nm Aq-empty
+.Nd empty implicit enclosure macros
+.Sh DESCRIPTION
+An empty
+.Aq
+and a full
+.Aq user at host:
+return path.
+And another
+.Ao full: Ac one "Sy" bold .

Added: vendor/mandoc/dist/regress/mdoc/Aq/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+AQ-EMPTY(1)                 General Commands Manual                AQ-EMPTY(1)
+
+NNAAMMEE
+     AAqq--eemmppttyy - empty implicit enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     An empty <> and a full <user at host:> return path.  And another <full:> one
+     bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Aq/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:12:14: STYLE: no blank before trailing delimiter: Aq user at host:
+mandoc: empty.in:15:9: STYLE: no blank before trailing delimiter: Ao full:

Added: vendor/mandoc/dist/regress/mdoc/Aq/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+AQ-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Aq-empty** - empty implicit enclosure macros
+
+# DESCRIPTION
+
+An empty
+<>
+and a full
+<user at host:>
+return path.
+And another
+<full:> one **bold**.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Aq/empty.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Aq/empty.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Aq/empty.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+AQ-EMPTY(1)                 General Commands Manual                AQ-EMPTY(1)
+
+NNAAMMEE
+     AAqq--eemmppttyy – empty implicit enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     An empty ⟨⟩ and a full ⟨user at host:⟩ return path.  And another ⟨full:⟩ one
+     bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ar/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2012/07/09 17:52:09 schwarze Exp $
+
+REGRESS_TARGETS = punct font
+LINT_TARGETS	= punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ar/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AR-FONT 1
+.Os
+.Sh NAME
+.Nm Ar-font
+.Nd changing fonts inside the argument macro
+.Sh DESCRIPTION
+normal text
+.Ar emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Ar/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+AR-FONT(1)                  General Commands Manual                 AR-FONT(1)
+
+NNAAMMEE
+     AArr--ffoonntt - changing fonts inside the argument macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ar/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+AR-FONT(1) - General Commands Manual
+
+# NAME
+
+**Ar-font** - changing fonts inside the argument macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ar/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+.\" $OpenBSD: punct.in,v 1.6 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AR-PUNCT 1
+.Os
+.Sh NAME
+.Nm Ar-punct
+.Nd punctuation handling by the Ar macro
+.Sh DESCRIPTION
+closing punctuation
+.Ar a )
+only one
+.Ar )
+only more than one
+.Ar ) )
+middle
+.Ar a ) z
+start
+.Ar ) z
+dot
+.Ar . z
+comma
+.Ar , z
+semicolon
+.Ar ; z
+colon
+.Ar : z
+quest
+.Ar ? z
+excl
+.Ar ! z
+paren
+.Ar ) z
+bracket
+.Ar ] z
+bar
+.Ar | m
+op paren
+.Ar ( a
+op bracket
+.Ar [ a
+.Pp
+quoted punctuation:
+.Ar a "(" b "|" c ")" d "," "Sy" bold .
+.Pp
+missing blank:
+.Ar arg.

Added: vendor/mandoc/dist/regress/mdoc/Ar/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+AR-PUNCT(1)                 General Commands Manual                AR-PUNCT(1)
+
+NNAAMMEE
+     AArr--ppuunncctt - punctuation handling by the Ar macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation _a) only one _f_i_l_e _._._.) only more than one _f_i_l_e _._._.))
+     middle _a) _z start _f_i_l_e _._._.) _z dot _f_i_l_e _._._.. _z comma _f_i_l_e _._._., _z semicolon
+     _f_i_l_e _._._.; _z colon _f_i_l_e _._._.: _z quest _f_i_l_e _._._.? _z excl _f_i_l_e _._._.! _z paren
+     _f_i_l_e _._._.) _z bracket _f_i_l_e _._._.] _z bar | _m op paren (_a op bracket [_a
+
+     quoted punctuation: _a (_b | _c) _d, bboolldd.
+
+     missing blank: _a_r_g_.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ar/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: punct.in:46:8: STYLE: no blank before trailing delimiter: Ar arg.

Added: vendor/mandoc/dist/regress/mdoc/Ar/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ar/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ar/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,48 @@
+AR-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Ar-punct** - punctuation handling by the Ar macro
+
+# DESCRIPTION
+
+closing punctuation
+*a*)
+only one
+*file ...*)
+only more than one
+*file ...*))
+middle
+*a*) *z*
+start
+*file ...*) *z*
+dot
+*file ...*. *z*
+comma
+*file ...*, *z*
+semicolon
+*file ...*; *z*
+colon
+*file ...*: *z*
+quest
+*file ...*? *z*
+excl
+*file ...*! *z*
+paren
+*file ...*) *z*
+bracket
+*file ...*] *z*
+bar
+| *m*
+op paren
+(*a*
+op bracket
+\[*a*
+
+quoted punctuation:
+*a* (*b* | *c*) *d*, **bold**.
+
+missing blank:
+*arg.*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/At/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/At/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/At/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2014/07/05 12:33:54 schwarze Exp $
+
+REGRESS_TARGETS	= invalid
+LINT_TARGETS	= invalid
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/At/invalid.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/At/invalid.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/At/invalid.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: invalid.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AT-INVALID 1
+.Os
+.Sh NAME
+.Nm At-invalid
+.Nd handling of an invalid AT&T UNIX argument
+.Sh DESCRIPTION
+no argument:
+.At
+.Pp
+valid argument:
+.At v7
+.Pp
+invalid argument:
+.At murks "Sy" bold
+.Pp
+end of file

Added: vendor/mandoc/dist/regress/mdoc/At/invalid.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/At/invalid.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/At/invalid.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+AT-INVALID(1)               General Commands Manual              AT-INVALID(1)
+
+NNAAMMEE
+     AAtt--iinnvvaalliidd - handling of an invalid AT&T UNIX argument
+
+DDEESSCCRRIIPPTTIIOONN
+     no argument: AT&T UNIX
+
+     valid argument: Version 7 AT&T UNIX
+
+     invalid argument: AT&T UNIX murks bboolldd
+
+     end of file
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/At/invalid.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/At/invalid.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/At/invalid.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: invalid.in:16:5: WARNING: unknown AT&T UNIX version: At murks

Added: vendor/mandoc/dist/regress/mdoc/At/invalid.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/At/invalid.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/At/invalid.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+AT-INVALID(1) - General Commands Manual
+
+# NAME
+
+**At-invalid** - handling of an invalid AT&T UNIX argument
+
+# DESCRIPTION
+
+no argument:
+AT&T UNIX
+
+valid argument:
+Version 7 AT&T UNIX
+
+invalid argument:
+AT&T UNIX murks **bold**
+
+end of file
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+# $OpenBSD: Makefile,v 1.18 2014/12/24 23:31:59 schwarze Exp $
+
+REGRESS_TARGETS	 = beforeNAME blank centered nested spacing
+REGRESS_TARGETS	+= badargs empty offset-empty offset-neg
+REGRESS_TARGETS	+= break broken unclosed
+
+LINT_TARGETS	 = beforeNAME blank nested badargs break broken unclosed
+
+SKIP_TMAN	 = beforeNAME centered
+
+# groff-1.22.3 defects:
+# - a display breaking another block continues indefinitely
+# - negative offsets take no effect, but advance the indention on exit
+
+SKIP_GROFF	 = break offset-neg
+
+# adjustment is disabled in groff for now
+
+SKIP_GROFF	+= centered
+
+# groff handles content before NAME differently
+
+SKIP_GROFF	+= beforeNAME
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Bd/badargs.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/badargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/badargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,52 @@
+.\" $OpenBSD: badargs.in,v 1.6 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-BADARGS 1
+.Os
+.Sh NAME
+.Nm Bd-badargs
+.Nd display block with bad arguments
+.Sh DESCRIPTION
+trailing -offset:
+.Bd -ragged -offset
+is
+ignored
+.Ed tail argument
+double -compact and -offset:
+.Bd -ragged -compact -offset 42n -compact -offset 6n
+last
+wins
+.Ed
+no type:
+.Bd -offset 0n -bogus args
+displayed
+text
+.Ed
+double type:
+.Bd -ragged -compact -unfilled
+ragged
+unfilled
+.Ed
+.Bd -unfilled -compact -ragged
+unfilled
+ragged
+.Ed
+file /dev/null:
+.Bd -ragged -file /dev/null -offset indent
+ragged
+offset indent
+.Ed
+trailing -file:
+.Bd -ragged -offset indent -file
+ragged
+offset indent
+.Ed
+missing -file argument:
+.Bd -ragged -offset indent -file -compact
+ragged
+offset indent
+.Ed
+no argument whatsoever:
+.Bd
+no
+argument
+.Ed

Added: vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+BD-BADARGS(1)               General Commands Manual              BD-BADARGS(1)
+
+NNAAMMEE
+     BBdd--bbaaddaarrggss - display block with bad arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     trailing -offset:
+
+     is ignored
+     double -compact and -offset:
+           last wins
+     no type:
+
+     displayed text
+     double type:
+     ragged unfilled
+     unfilled
+     ragged
+     file /dev/null:
+
+           ragged offset indent
+     trailing -file:
+
+           ragged offset indent
+     missing -file argument:
+
+           ragged offset indent
+     no argument whatsoever: no argument
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+mandoc: badargs.in:13:2: ERROR: skipping all arguments: Ed tail argument
+mandoc: badargs.in:20:16: ERROR: skipping excess arguments: Bd ... -bogus
+mandoc: badargs.in:10:13: WARNING: empty argument, using 0n: Bd -offset
+mandoc: badargs.in:15:34: WARNING: duplicate argument: Bd -compact
+mandoc: badargs.in:15:43: WARNING: duplicate argument: Bd -offset 6n
+mandoc: badargs.in:20:2: WARNING: missing display type, using -ragged: Bd
+mandoc: badargs.in:25:2: WARNING: skipping duplicate display type: Bd -unfilled
+mandoc: badargs.in:29:2: WARNING: skipping duplicate display type: Bd -ragged
+mandoc: badargs.in:34:2: ERROR: NOT IMPLEMENTED: Bd -file
+mandoc: badargs.in:39:2: ERROR: NOT IMPLEMENTED: Bd -file
+mandoc: badargs.in:44:2: ERROR: NOT IMPLEMENTED: Bd -file
+mandoc: badargs.in:49:2: ERROR: skipping display without arguments: Bd

Added: vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/badargs.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,51 @@
+BD-BADARGS(1) - General Commands Manual
+
+# NAME
+
+**Bd-badargs** - display block with bad arguments
+
+# DESCRIPTION
+
+trailing -offset:
+
+> is
+> ignored
+
+double -compact and -offset:
+
+> last
+> wins
+
+no type:
+
+> displayed
+> text
+
+double type:
+
+> ragged
+> unfilled
+
+	unfilled
+	ragged
+
+file /dev/null:
+
+> ragged
+> offset indent
+
+trailing -file:
+
+> ragged
+> offset indent
+
+missing -file argument:
+
+> ragged
+> offset indent
+
+no argument whatsoever:
+no
+argument
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: beforeNAME.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-BEFORENAME 1
+.Os
+.Bd -centered
+Building and Debugging NetBSD Kernels
+.br
+David A. Holland
+.br
+August 17, 2009
+.Ed
+.Sh NAME
+.Nm Bd-beforename
+.Nd title and author block before the NAME section
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+BD-BEFORENAME(1)            General Commands Manual           BD-BEFORENAME(1)
+
+                    Building and Debugging NetBSD Kernels
+                               David A. Holland
+                               August 17, 2009
+
+NNAAMMEE
+     BBdd--bbeeffoorreennaammee - title and author block before the NAME section
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: beforeNAME.in:5:2: WARNING: content before first section header: Bd

Added: vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/beforeNAME.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BD-BEFORENAME(1) - General Commands Manual
+
+> Building and Debugging NetBSD Kernels  
+> David A. Holland  
+> August 17, 2009
+
+# NAME
+
+**Bd-beforename** - title and author block before the NAME section
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/blank.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/blank.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/blank.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: blank.in,v 1.6 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-BLANK 1
+.Os
+.Sh NAME
+.Nm Bd-blank
+.Nd handling of blank lines in literal displays
+.Sh DESCRIPTION
+.Bd -literal
+completely blank line:
+
+line containing a blank character:
+ 
+line containing two blank characters:
+  
+line containing space tab space:
+ 	 
+line starting with a blank character:
+ x
+line starting with two blank characters:
+  x
+line ending in one blank character: 
+line ending in two blank characters:  
+line ending in space tab space: 	 
+line containing a Pp macro:
+.Pp
+finally, a trailing blank line:
+
+.Ed
+An empty one-line literal display:
+.Dl     
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Bd/blank.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/blank.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/blank.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+BD-BLANK(1)                 General Commands Manual                BD-BLANK(1)
+
+NNAAMMEE
+     BBdd--bbllaannkk - handling of blank lines in literal displays
+
+DDEESSCCRRIIPPTTIIOONN
+     completely blank line:
+
+     line containing a blank character:
+
+     line containing two blank characters:
+
+     line containing space tab space:
+
+     line starting with a blank character:
+      x
+     line starting with two blank characters:
+       x
+     line ending in one blank character:
+     line ending in two blank characters:
+     line ending in space tab space:
+     line containing a Pp macro:
+
+     finally, a trailing blank line:
+
+     An empty one-line literal display:
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/blank.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/blank.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/blank.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+mandoc: blank.in:13:1: STYLE: whitespace at end of input line
+mandoc: blank.in:15:1: STYLE: whitespace at end of input line
+mandoc: blank.in:17:1: STYLE: whitespace at end of input line
+mandoc: blank.in:22:36: STYLE: whitespace at end of input line
+mandoc: blank.in:23:37: STYLE: whitespace at end of input line
+mandoc: blank.in:24:32: STYLE: whitespace at end of input line
+mandoc: blank.in:31:8: STYLE: whitespace at end of input line
+mandoc: blank.in:31:2: WARNING: empty block: Dl

Added: vendor/mandoc/dist/regress/mdoc/Bd/blank.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/blank.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/blank.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+BD-BLANK(1) - General Commands Manual
+
+# NAME
+
+**Bd-blank** - handling of blank lines in literal displays
+
+# DESCRIPTION
+
+	completely blank line:
+	
+	line containing a blank character:
+	
+	line containing two blank characters:
+	
+	line containing space tab space:
+	
+	line starting with a blank character:
+	 x
+	line starting with two blank characters:
+	  x
+	line ending in one blank character:
+	line ending in two blank characters:
+	line ending in space tab space:
+	line containing a Pp macro:
+
+	finally, a trailing blank line:
+	
+
+An empty one-line literal display:
+
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-BREAK 1
+.Os
+.Sh NAME
+.Nm Bd-break
+.Nd display breaking another block
+.Sh DESCRIPTION
+before both
+.Bd -ragged -offset indent
+before bracket
+.Bo inside both
+.Ed
+after display
+.Bc
+after both

Added: vendor/mandoc/dist/regress/mdoc/Bd/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+BD-BREAK(1)                 General Commands Manual                BD-BREAK(1)
+
+NNAAMMEE
+     BBdd--bbrreeaakk - display breaking another block
+
+DDEESSCCRRIIPPTTIIOONN
+     before both
+
+           before bracket [inside both
+     after display] after both
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: break.in:13:2: WARNING: blocks badly nested: Bd breaks Bo

Added: vendor/mandoc/dist/regress/mdoc/Bd/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+BD-BREAK(1) - General Commands Manual
+
+# NAME
+
+**Bd-break** - display breaking another block
+
+# DESCRIPTION
+
+before both
+
+> before bracket
+> \[inside both
+
+after display]
+after both
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/broken.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: broken.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-BROKEN 1
+.Os
+.Sh NAME
+.Nm Bd-broken
+.Nd display broken by another block
+.Sh DESCRIPTION
+before both
+.Bo before display
+.Bd -ragged -offset indent
+inside both
+.Bc
+after bracket
+.Ed

Added: vendor/mandoc/dist/regress/mdoc/Bd/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+BD-BROKEN(1)                General Commands Manual               BD-BROKEN(1)
+
+NNAAMMEE
+     BBdd--bbrrookkeenn - display broken by another block
+
+DDEESSCCRRIIPPTTIIOONN
+     before both [before display
+
+           inside both] after bracket
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: broken.in:13:2: WARNING: blocks badly nested: Bo breaks Bd

Added: vendor/mandoc/dist/regress/mdoc/Bd/broken.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/broken.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/broken.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BD-BROKEN(1) - General Commands Manual
+
+# NAME
+
+**Bd-broken** - display broken by another block
+
+# DESCRIPTION
+
+before both
+\[before display
+
+> inside both]
+> after bracket
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/centered.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/centered.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/centered.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: centered.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-CENTERED 1
+.Os
+.Sh NAME
+.Nm Bd-centered
+.Nd centered display blocks
+.Sh DESCRIPTION
+preceding text
+.br
+.Bd -centered -offset indent
+first line of the block
+.br
+second line
+.Ed
+following text

Added: vendor/mandoc/dist/regress/mdoc/Bd/centered.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/centered.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/centered.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+BD-CENTERED(1)              General Commands Manual             BD-CENTERED(1)
+
+NNAAMMEE
+     BBdd--cceenntteerreedd - centered display blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     preceding text
+
+                                 first line of the block
+                                       second line
+     following text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/centered.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/centered.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/centered.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+BD-CENTERED(1) - General Commands Manual
+
+# NAME
+
+**Bd-centered** - centered display blocks
+
+# DESCRIPTION
+
+preceding text
+
+> first line of the block  
+> second line
+
+following text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: empty.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-EMPTY 1
+.Os
+.Sh NAME
+.Nm Bd-empty
+.Nd empty displays
+.Sh DESCRIPTION
+An empty filled display:
+.Bd -filled
+.Ed
+An empty literal display:
+.Bd -literal
+.Ed
+An empty ragged display:
+.Bd -ragged
+.Ed
+An empty unfilled display:
+.Bd -unfilled
+.Ed
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Bd/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+BD-EMPTY(1)                 General Commands Manual                BD-EMPTY(1)
+
+NNAAMMEE
+     BBdd--eemmppttyy - empty displays
+
+DDEESSCCRRIIPPTTIIOONN
+     An empty filled display:
+
+     An empty literal display:
+
+     An empty ragged display:
+
+     An empty unfilled display:
+
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+BD-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Bd-empty** - empty displays
+
+# DESCRIPTION
+
+An empty filled display:
+
+An empty literal display:
+
+An empty ragged display:
+
+An empty unfilled display:
+
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/nested.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/nested.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/nested.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: nested.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-NESTED 1
+.Os
+.Sh NAME
+.Nm Bd-nested
+.Nd nested displays and lists
+.Sh DESCRIPTION
+regular
+text
+.Bd -ragged -offset indent
+outer
+text (default indent)
+.Bd -ragged -offset indent
+inner
+text (default indent)
+.Ed
+outer
+text
+.Ed
+regular
+text
+.Bd -ragged -offset 4n
+outer text (4n)
+.Bd -ragged -offset 2n
+inner text (2n)
+.Ed
+outer text
+.Bl -tag -width 6n
+.It tag
+text
+.El
+outer text
+.Ed
+regular text
+.Bl -tag -width 6n
+.It tag
+outer text
+.Bd -ragged -offset 2n
+inner text (2n)
+.Ed
+outer text
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bd/nested.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/nested.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/nested.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+BD-NESTED(1)                General Commands Manual               BD-NESTED(1)
+
+NNAAMMEE
+     BBdd--nneesstteedd - nested displays and lists
+
+DDEESSCCRRIIPPTTIIOONN
+     regular text
+
+           outer text (default indent)
+
+                 inner text (default indent)
+           outer text
+     regular text
+
+         outer text (4n)
+
+           inner text (2n)
+         outer text
+
+         tag     text
+         outer text
+     regular text
+
+     tag     outer text
+
+               inner text (2n)
+             outer text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/nested.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/nested.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/nested.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: nested.in:14:2: WARNING: nested displays are not portable: Bd in Bd
+mandoc: nested.in:25:2: WARNING: nested displays are not portable: Bd in Bd

Added: vendor/mandoc/dist/regress/mdoc/Bd/nested.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/nested.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/nested.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+BD-NESTED(1) - General Commands Manual
+
+# NAME
+
+**Bd-nested** - nested displays and lists
+
+# DESCRIPTION
+
+regular
+text
+
+> outer
+> text (default indent)
+
+> > inner
+> > text (default indent)
+
+> outer
+> text
+
+regular
+text
+
+> outer text (4n)
+
+> > inner text (2n)
+
+> outer text
+
+> tag
+
+> > text
+
+> outer text
+
+regular text
+
+tag
+
+> outer text
+
+> > inner text (2n)
+
+> outer text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: offset-empty.in,v 1.6 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-OFFSET-EMPTY 1
+.Os
+.Sh NAME
+.Nm Bd-offset-empty
+.Nd no argument specified to Bd offset
+.Sh DESCRIPTION
+.Bd -literal -offset
+Bd literal offset empty
+.Ed
+.Bd -literal -offset left
+Bd literal offset left
+.Ed
+.Bd -literal -offset indent
+Bd literal offset indent
+.Ed
+.Bd -literal -offset indent-two
+Bd literal offset indent-two
+.Ed
+.Bd -literal -offset 4n
+Bd literal offset 4n
+.Ed
+.Bd -literal -offset mystring
+Bd literal offset mystring
+.Ed
+.Bd -literal -offset Ds
+Bd literal offset Ds
+.Ed
+.Bd -literal -offset 78n
+Bd literal offset 78n
+.Ed

Added: vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+BD-OFFSET-EMPTY(1)          General Commands Manual         BD-OFFSET-EMPTY(1)
+
+NNAAMMEE
+     BBdd--ooffffsseett--eemmppttyy - no argument specified to Bd offset
+
+DDEESSCCRRIIPPTTIIOONN
+     Bd literal offset empty
+
+     Bd literal offset left
+
+           Bd literal offset indent
+
+                 Bd literal offset indent-two
+
+         Bd literal offset 4n
+
+             Bd literal offset mystring
+
+           Bd literal offset Ds
+
+                                                                                   Bd literal offset 78n
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/offset-empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+BD-OFFSET-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Bd-offset-empty** - no argument specified to Bd offset
+
+# DESCRIPTION
+
+	Bd literal offset empty
+
+	Bd literal offset left
+
+	Bd literal offset indent
+
+	Bd literal offset indent-two
+
+	Bd literal offset 4n
+
+	Bd literal offset mystring
+
+	Bd literal offset Ds
+
+	Bd literal offset 78n
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: offset-neg.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-INDENT 1
+.Os
+.Sh NAME
+.Nm Bd-indent
+.Nd indenting display blocks
+.Sh DESCRIPTION
+regular text
+.Bd -ragged -offset 0.76i
+outer display
+.Bd -ragged -offset -0.46i
+inner display
+.Ed
+outer display
+.Ed
+regular text
+.Bd -ragged -offset -3n
+outer display
+.Bd -ragged -offset 8n
+inner display
+.Ed
+outer display
+.Ed
+regular text

Added: vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+BD-INDENT(1)                General Commands Manual               BD-INDENT(1)
+
+NNAAMMEE
+     BBdd--iinnddeenntt - indenting display blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     regular text
+
+             outer display
+
+        inner display
+             outer display
+     regular text
+
+  outer display
+
+          inner display
+  outer display
+     regular text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/offset-neg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+BD-INDENT(1) - General Commands Manual
+
+# NAME
+
+**Bd-indent** - indenting display blocks
+
+# DESCRIPTION
+
+regular text
+
+> outer display
+
+> > inner display
+
+> outer display
+
+regular text
+
+> outer display
+
+> > inner display
+
+> outer display
+
+regular text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: spacing.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-SPACING 1
+.Os
+.Sh NAME
+.Nm Bd-spacing
+.Nd vertical spacing around display blocks
+.Sh DESCRIPTION
+preceding text
+.Bd -ragged -offset indent
+display block
+.Ed
+text between displays
+.Bd -ragged -offset indent -compact
+compact display block
+.Ed
+following text

Added: vendor/mandoc/dist/regress/mdoc/Bd/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+BD-SPACING(1)               General Commands Manual              BD-SPACING(1)
+
+NNAAMMEE
+     BBdd--ssppaacciinngg - vertical spacing around display blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     preceding text
+
+           display block
+     text between displays
+           compact display block
+     following text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/spacing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/spacing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/spacing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+BD-SPACING(1) - General Commands Manual
+
+# NAME
+
+**Bd-spacing** - vertical spacing around display blocks
+
+# DESCRIPTION
+
+preceding text
+
+> display block
+
+text between displays
+
+> compact display block
+
+following text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bd/unclosed.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/unclosed.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/unclosed.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: unclosed.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BD-UNCLOSED 1
+.Os
+.Sh NAME
+.Nm Bd-unclosed
+.Nd display still open at the end of the file
+.Sh DESCRIPTION
+before display
+.Bd -ragged -offset indent
+inside display

Added: vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+BD-UNCLOSED(1)              General Commands Manual             BD-UNCLOSED(1)
+
+NNAAMMEE
+     BBdd--uunncclloosseedd - display still open at the end of the file
+
+DDEESSCCRRIIPPTTIIOONN
+     before display
+
+           inside display
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: unclosed.in:10:2: ERROR: appending missing end of block: Bd

Added: vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bd/unclosed.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+BD-UNCLOSED(1) - General Commands Manual
+
+# NAME
+
+**Bd-unclosed** - display still open at the end of the file
+
+# DESCRIPTION
+
+before display
+
+> inside display
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bf/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/04 16:11:42 schwarze Exp $
+
+REGRESS_TARGETS	= nest multiargs badargs break broken
+LINT_TARGETS	= multiargs badargs break broken
+
+# mandoc -T markdown ignores .Bf, at least for now
+
+SKIP_MARKDOWN ?= ALL
+
+# groff-1.22.2 defects:
+#  - If the first argument to .Bf is a bad one,
+#    no block is opened at all and the .Ef causes another error.
+#  - If a font block breaks another block,
+#    fonts get mixed up when the other block finally ends.
+
+SKIP_GROFF = badargs break
+
+SKIP_TMAN = break broken
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Bf/badargs.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/badargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/badargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: badargs.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BF-BADARGS 1
+.Os
+.Sh NAME
+.Nm Bf-badargs
+.Nd font blocks with bad arguments
+.Sh DESCRIPTION
+normal text
+.Bf -emphasis
+emphasis
+.Bf
+no argument
+.Ef
+back to emphasis
+.Bf badarg
+bad argument
+.Ef tail argument
+back to emphasis
+.Ef
+back to normal

Added: vendor/mandoc/dist/regress/mdoc/Bf/badargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/badargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/badargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+BF-BADARGS(1)               General Commands Manual              BF-BADARGS(1)
+
+NNAAMMEE
+     BBff--bbaaddaarrggss - font blocks with bad arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_s no argument _b_a_c_k _t_o _e_m_p_h_a_s_i_s bad argument _b_a_c_k _t_o
+     _e_m_p_h_a_s_i_s back to normal
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bf/badargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/badargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/badargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: badargs.in:18:2: ERROR: skipping all arguments: Ef tail argument
+mandoc: badargs.in:12:2: WARNING: missing font type, using \fR: Bf
+mandoc: badargs.in:16:5: WARNING: unknown font type, using \fR: Bf badarg

Added: vendor/mandoc/dist/regress/mdoc/Bf/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BF-BREAK 1
+.Os
+.Sh NAME
+.Nm Bf-break
+.Nd font block breaking another block
+.Sh DESCRIPTION
+before both
+.Bf Em
+before bracket
+.Bo
+inside both
+.Ef
+after font block
+.Bc
+after both

Added: vendor/mandoc/dist/regress/mdoc/Bf/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+BF-BREAK(1)                 General Commands Manual                BF-BREAK(1)
+
+NNAAMMEE
+     BBff--bbrreeaakk - font block breaking another block
+
+DDEESSCCRRIIPPTTIIOONN
+     before both _b_e_f_o_r_e _b_r_a_c_k_e_t _[_i_n_s_i_d_e _b_o_t_h after font block] after both
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bf/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: break.in:14:2: WARNING: blocks badly nested: Bf breaks Bo

Added: vendor/mandoc/dist/regress/mdoc/Bf/broken.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: broken.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BF-BROKEN 1
+.Os
+.Sh NAME
+.Nm Bf-broken
+.Nd font block broken by another block
+.Sh DESCRIPTION
+before both
+.Bo before font block
+.Bf Em
+inside both
+.Bc
+after bracket
+.Ef
+after both

Added: vendor/mandoc/dist/regress/mdoc/Bf/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+BF-BROKEN(1)                General Commands Manual               BF-BROKEN(1)
+
+NNAAMMEE
+     BBff--bbrrookkeenn - font block broken by another block
+
+DDEESSCCRRIIPPTTIIOONN
+     before both [before font block _i_n_s_i_d_e _b_o_t_h] after bracket after both
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bf/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: broken.in:13:2: WARNING: blocks badly nested: Bo breaks Bf

Added: vendor/mandoc/dist/regress/mdoc/Bf/multiargs.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/multiargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/multiargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+.\" $OpenBSD: multiargs.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BF-MULTIARGS 1
+.Os
+.Sh NAME
+.Nm Bf-multiargs
+.Nd font blocks with multiple arguments
+.Sh DESCRIPTION
+normal text
+.Bf -symbolic -emphasis
+symbolic emphasis
+.Ef
+back to normal
+.Bf -symbolic Em
+symbolic Em
+.Ef
+back to normal
+.Bf -symbolic badarg
+symbolic badarg
+.Ef
+back to normal
+.Bf Sy -emphasis
+Sy -emphasis
+.Ef
+back to normal
+.Bf Sy Em
+Sy Em
+.Ef
+back to normal
+.Bf Sy badarg
+Sy Em
+.Ef
+back to normal

Added: vendor/mandoc/dist/regress/mdoc/Bf/multiargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/multiargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/multiargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+BF-MULTIARGS(1)             General Commands Manual            BF-MULTIARGS(1)
+
+NNAAMMEE
+     BBff--mmuullttiiaarrggss - font blocks with multiple arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text ssyymmbboolliicc eemmpphhaassiiss back to normal ssyymmbboolliicc EEmm back to normal
+     ssyymmbboolliicc bbaaddaarrgg back to normal SSyy --eemmpphhaassiiss back to normal SSyy EEmm back to
+     normal SSyy EEmm back to normal
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bf/multiargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/multiargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/multiargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: multiargs.in:14:15: ERROR: skipping excess arguments: Bf ... Em
+mandoc: multiargs.in:18:15: ERROR: skipping excess arguments: Bf ... badarg
+mandoc: multiargs.in:22:8: ERROR: skipping excess arguments: Bf ... -emphasis
+mandoc: multiargs.in:26:8: ERROR: skipping excess arguments: Bf ... Em
+mandoc: multiargs.in:30:8: ERROR: skipping excess arguments: Bf ... badarg

Added: vendor/mandoc/dist/regress/mdoc/Bf/nest.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/nest.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/nest.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+.\" $OpenBSD: nest.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BF-NEST 1
+.Os
+.Sh NAME
+.Nm Bf-nest
+.Nd nesting font blocks
+.Sh DESCRIPTION
+normal text
+.Bf -emphasis
+emphasis
+.Bf -literal
+literal
+.Bf -symbolic
+symbolic
+.Bf Em
+Em
+.Bf Li
+Li
+.Bf Sy
+Sy
+.Em in-line \&Em \\fRroman\\fP again \&Em
+.Ef
+back to Li
+.Ef
+back to Em
+.Ef
+back to symbolic
+.Ef
+back to literal
+.Ef
+back to emphasis
+.Ef
+back to normal

Added: vendor/mandoc/dist/regress/mdoc/Bf/nest.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bf/nest.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bf/nest.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+BF-NEST(1)                  General Commands Manual                 BF-NEST(1)
+
+NNAAMMEE
+     BBff--nneesstt - nesting font blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_s literal ssyymmbboolliicc _E_m Li SSyy _i_n_-_l_i_n_e _E_m roman _a_g_a_i_n _E_m
+     back to Li _b_a_c_k _t_o _E_m bbaacckk ttoo ssyymmbboolliicc back to literal _b_a_c_k _t_o _e_m_p_h_a_s_i_s
+     back to normal
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bk/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+# $OpenBSD: Makefile,v 1.7 2015/02/07 16:39:44 schwarze Exp $
+
+REGRESS_TARGETS	 = badarg break broken inputlines lines synopsis
+LINT_TARGETS	 = badarg broken
+
+SKIP_TMAN ?= badarg
+
+# mandoc -T markdown output of .Bk is quite ugly,
+# so refrain from testing it for now
+
+SKIP_MARKDOWN ?= ALL
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Bk/badarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/badarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/badarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,57 @@
+.\" $OpenBSD: badarg.in,v 1.6 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BK-BADARG 1
+.Os
+.Sh NAME
+.Nm Bk-badarg
+.Nd bad arguments after Bk
+.Sh SYNOPSIS
+.Nm
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x
+.Bk -badarg
+.Op o Ar a
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x
+.Bk -lines
+.Op o Ar a
+.Ek tail argument
+.Pp
+.Nm
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x
+.Bk -line
+.Op o Ar a
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x
+.Bk
+.Op o Ar a
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x
+.Bk -words -murks bogus
+.Op o Ar a
+.Ek
+.Sh DESCRIPTION
+Here is an empty keep:
+.Bk -words
+.Ek
+End of test document.

Added: vendor/mandoc/dist/regress/mdoc/Bk/badarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/badarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/badarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+BK-BADARG(1)                General Commands Manual               BK-BADARG(1)
+
+NNAAMMEE
+     BBkk--bbaaddaarrgg - bad arguments after Bk
+
+SSYYNNOOPPSSIISS
+     BBkk--bbaaddaarrgg _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+               [o _a]
+
+     BBkk--bbaaddaarrgg _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+               [o _a]
+
+     BBkk--bbaaddaarrgg _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+               [o _a]
+
+     BBkk--bbaaddaarrgg _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+               [o _a]
+
+     BBkk--bbaaddaarrgg _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+               [o _a]
+
+DDEESSCCRRIIPPTTIIOONN
+     Here is an empty keep: End of test document.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bk/badarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/badarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/badarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+mandoc: badarg.in:14:5: ERROR: skipping excess arguments: Bk ... -badarg
+mandoc: badarg.in:23:5: ERROR: skipping excess arguments: Bk ... -lines
+mandoc: badarg.in:25:2: ERROR: skipping all arguments: Ek tail argument
+mandoc: badarg.in:32:5: ERROR: skipping excess arguments: Bk ... -line
+mandoc: badarg.in:50:12: ERROR: skipping excess arguments: Bk ... -murks
+mandoc: badarg.in:55:2: WARNING: empty block: Bk

Added: vendor/mandoc/dist/regress/mdoc/Bk/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,54 @@
+.\" $OpenBSD: break.in,v 1.7 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BK-BREAK 1
+.Os
+.Sh NAME
+.Nm Bk-break
+.Nd handling of word keeps
+.Sh DESCRIPTION
+Even though it is called a word keep,
+.Bk -words
+it will not keep words together in free-form text.
+.Ek
+However, even the noop macro
+.Bk -words
+.No is sufficient to let the keep take effect .
+.Ek
+Even text generated in pre-handlers must be kept together with
+the text following it:
+.Bk -words
+.Xr one 1 No and Xr two 2
+.Ek
+should be on the same line.
+.Pp
+Including the whole output line into the keep is not required,
+including just the macros to be kept together is sufficient:
+.Pp
+.Nm
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x
+.Bk -words
+.Op o Ar a
+.Ek
+.Pp
+.Bk -words
+.Nm
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x x x
+.Ar x x x x x x
+.Op o Ar a
+.Ek
+.Pp
+Even text printed without spacing must be kept together
+with the text following it:
+.Pp
+.Bk -words
+.Fn xxxxxxxxxxxxxxxxxxxx "xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx" xxxxxxxxxxxxxxxxxxxx
+.Pp
+.Fo xxxxxxxxxxxxxxxxxxxx
+.Fa "xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx" xxxxxxxxxxxxxxxxxxxx
+.Fc
+.Ek

Added: vendor/mandoc/dist/regress/mdoc/Bk/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+BK-BREAK(1)                 General Commands Manual                BK-BREAK(1)
+
+NNAAMMEE
+     BBkk--bbrreeaakk - handling of word keeps
+
+DDEESSCCRRIIPPTTIIOONN
+     Even though it is called a word keep, it will not keep words together in
+     free-form text.  However, even the noop macro
+     is sufficient to let the keep take effect.  Even text generated in pre-
+     handlers must be kept together with the text following it:
+     one(1) and two(2) should be on the same line.
+
+     Including the whole output line into the keep is not required, including
+     just the macros to be kept together is sufficient:
+
+     BBkk--bbrreeaakk _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+     [o _a]
+
+     BBkk--bbrreeaakk _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+     [o _a]
+
+     Even text printed without spacing must be kept together with the text
+     following it:
+
+     xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x
+     _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x, _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x)
+
+     xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x, _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bk/broken.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: broken.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BK-BROKEN 1
+.Os
+.Sh NAME
+.Nm Bk-broken
+.Nd word keep broken by another block
+.Sh DESCRIPTION
+before keep
+.Bk -words
+.Sh CAVEATS
+next section

Added: vendor/mandoc/dist/regress/mdoc/Bk/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+BK-BROKEN(1)                General Commands Manual               BK-BROKEN(1)
+
+NNAAMMEE
+     BBkk--bbrrookkeenn - word keep broken by another block
+
+DDEESSCCRRIIPPTTIIOONN
+     before keep
+
+CCAAVVEEAATTSS
+     next section
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bk/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: broken.in:11:2: ERROR: inserting missing end of block: Sh breaks Bk
+mandoc: broken.in:10:2: WARNING: empty block: Bk

Added: vendor/mandoc/dist/regress/mdoc/Bk/inputlines.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/inputlines.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/inputlines.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,74 @@
+.\" $OpenBSD: inputlines.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BK-INPUTLINES 1
+.Os
+.Sh NAME
+.Nm Bk-inputlines
+.Nd effect of input lines breaks on word keeps
+.Sh SYNOPSIS
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo Oo No a Oc Oo No b Oc Oc Pq one line
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo
+.Oo No a Oc Oo No b Oc Oc Pq "break after first Oo"
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo Oo
+.No a Oc Oo b Oc Oc Pq "break after second Oo"
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo Oo No a
+.Oc Oo No b Oc Oc Pq "break before first Oc"
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo Oo No a Oc
+.Oo No b Oc Oc Pq "break after first Oc"
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo Oo No a Oc Oo
+.No b Oc Oc Pq "break after third Oo"
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo a No b Oc
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo a
+.No b Oc
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo a Oc No b
+.Ek
+.Pp
+.Nm
+.Ar x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.Bk -words
+.Oo a Oc
+.No b
+.Ek

Added: vendor/mandoc/dist/regress/mdoc/Bk/inputlines.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/inputlines.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/inputlines.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+BK-INPUTLINES(1)            General Commands Manual           BK-INPUTLINES(1)
+
+NNAAMMEE
+     BBkk--iinnppuuttlliinneess - effect of input lines breaks on word keeps
+
+SSYYNNOOPPSSIISS
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+                   [[a] [b]] (one line)
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+                   [[a] [b]] (break after first Oo)
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+                   [[a] [b]] (break after second Oo)
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+                   [[a] [b]] (break before first Oc)
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x [[a]
+                   [b]] (break after first Oc)
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+                   [[a] [b]] (break after third Oo)
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+                   [a b]
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x [a
+                   b]
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x
+                   [a] b
+
+     BBkk--iinnppuuttlliinneess _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x _x [a]
+                   b
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bk/lines.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/lines.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/lines.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,89 @@
+.\" $OpenBSD: lines.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BK-LINES 1
+.Os
+.Sh NAME
+.Nm Bk-lines
+.Nd handling of line keeps
+.Sh DESCRIPTION
+.Bd -literal
+1
+2
+3
+4
+5
+6
+7
+8
+9
+11
+12
+13
+14
+15
+16
+17
+18
+19
+21
+22
+23
+24
+25
+26
+27
+28
+29
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+.Ed
+.Ss with keep
+.Bk -lines
+.Bd -literal
+1
+2
+3
+4
+5
+6
+7
+8
+9
+11
+12
+13
+14
+15
+16
+17
+18
+19
+21
+22
+23
+24
+25
+26
+27
+28
+29
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+.Ed
+.Ek

Added: vendor/mandoc/dist/regress/mdoc/Bk/lines.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/lines.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/lines.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,84 @@
+BK-LINES(1)                 General Commands Manual                BK-LINES(1)
+
+NNAAMMEE
+     BBkk--lliinneess - handling of line keeps
+
+DDEESSCCRRIIPPTTIIOONN
+     1
+     2
+     3
+     4
+     5
+     6
+     7
+     8
+     9
+     11
+     12
+     13
+     14
+     15
+     16
+     17
+     18
+     19
+     21
+     22
+     23
+     24
+     25
+     26
+     27
+     28
+     29
+     31
+     32
+     33
+     34
+     35
+     36
+     37
+     38
+     39
+     40
+
+   wwiitthh kkeeeepp
+     1
+     2
+     3
+     4
+     5
+     6
+     7
+     8
+     9
+     11
+     12
+     13
+     14
+     15
+     16
+     17
+     18
+     19
+     21
+     22
+     23
+     24
+     25
+     26
+     27
+     28
+     29
+     31
+     32
+     33
+     34
+     35
+     36
+     37
+     38
+     39
+     40
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bk/synopsis.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/synopsis.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/synopsis.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+.\" $OpenBSD: synopsis.in,v 1.7 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BK-SYNOPSIS 1
+.Os
+.Sh NAME
+.Nm Bk-synopsis
+.Nd automatic keeps in the synopsis
+.Sh SYNOPSIS
+In the synopsis, almost all macros do not show
+.No the word keep effect they would get in a \&Bk block.
+.Pp
+.Fn xxxxxxxxxxxxxxxxxxxx "xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx" xxxxxxxxxxxxxxxxxxxx
+.Fo xxxxxxxxxxxxxxxxxxxx
+.Fa "xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx" xxxxxxxxxxxxxxxxxxxx
+.Fc
+.Pp
+Only \&Nm, used as a block macro, does:
+.Pp
+.Nm ksh
+.Op Fl +abCefhiklmnpruvXx
+.Op Fl +o Ar option
+.Op Fl c Ar string \*(Ba Fl s \*(Ba Ar file Op Ar argument ...
+.Bk -words
+.Ek
+.Nm ksh
+.Op Fl +abCefhiklmnpruvXx
+.Op Fl +o Ar option
+.Op Fl c Ar string \*(Ba Fl s \*(Ba Ar file Op Ar argument ...
+.Sh DESCRIPTION
+.Nm ksh
+.Op Fl +abCefhiklmnpruvXx
+.Op Fl +o Ar option
+.Op Fl c Ar string \*(Ba Fl s \*(Ba Ar file Op Ar argument ...

Added: vendor/mandoc/dist/regress/mdoc/Bk/synopsis.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bk/synopsis.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bk/synopsis.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+BK-SYNOPSIS(1)              General Commands Manual             BK-SYNOPSIS(1)
+
+NNAAMMEE
+     BBkk--ssyynnooppssiiss - automatic keeps in the synopsis
+
+SSYYNNOOPPSSIISS
+     In the synopsis, almost all macros do not show the word keep effect they
+     would get in a Bk block.
+
+     xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x,
+         _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x);
+
+     xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x,
+         _x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x_x);
+
+     Only Nm, used as a block macro, does:
+
+     kksshh [--++aabbCCeeffhhiikkllmmnnpprruuvvXXxx] [--++oo _o_p_t_i_o_n]
+         [--cc _s_t_r_i_n_g | --ss | _f_i_l_e [_a_r_g_u_m_e_n_t _._._.]]
+     kksshh [--++aabbCCeeffhhiikkllmmnnpprruuvvXXxx] [--++oo _o_p_t_i_o_n]
+         [--cc _s_t_r_i_n_g | --ss | _f_i_l_e [_a_r_g_u_m_e_n_t _._._.]]
+
+DDEESSCCRRIIPPTTIIOONN
+     kksshh [--++aabbCCeeffhhiikkllmmnnpprruuvvXXxx] [--++oo _o_p_t_i_o_n] [--cc _s_t_r_i_n_g | --ss | _f_i_l_e [_a_r_g_u_m_e_n_t
+     _._._.]]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,50 @@
+# $OpenBSD: Makefile,v 1.31 2016/10/17 19:00:16 schwarze Exp $
+
+REGRESS_TARGETS  = item inset diag ohang bullet dash enum hang tag
+REGRESS_TARGETS += column column_nogroff colNoIt
+REGRESS_TARGETS += extend nested offset secstart
+
+REGRESS_TARGETS += notype multitype badargs
+REGRESS_TARGETS += empty noIt emptyhead emptytag emptyitem multitag
+REGRESS_TARGETS += bareIt bareTa unclosed break breakingIt breakingTa broken
+
+UTF8_TARGETS	 = dash
+
+LINT_TARGETS	 = inset diag column column_nogroff notype badargs tag
+LINT_TARGETS	+= empty noIt emptyhead emptytag emptyitem
+LINT_TARGETS	+= bareIt bareTa break breakingIt broken
+
+# groff-mandoc differences:
+# - groff allows enclosures to span Ta, mandoc does not
+
+SKIP_GROFF ?= breakingTa
+
+# groff-1.22.3 defects:
+# - column list items with no args but multiple lines cause bogus breaks
+# - in column lists, the tab macro cannot be a line macro
+# - lists with missing or late type ruin indentation
+# - empty lists ruin indentation and sometimes cause empty lines
+# - breaking lists continue indefinitely
+# - breaking items sometimes ruin indentation, sometimes abort processing
+# - breaking a list aborts processing
+# - empty -tag item heads lose the blank line and the indentation
+
+SKIP_GROFF += column_nogroff notype empty emptytag break breakingIt broken
+
+SKIP_TMAN ?= column colNoIt multitype multitag bareTa break breakingTa broken
+
+# Fixing the indentation in long .IP and .TP tags in -man -Tascii
+# caused a minor regression in -Tman that is not trivial to fix,
+# so disable the related test for now.
+
+SKIP_TMAN += tag
+
+# Empty heads are still mishandled by -Tman.
+
+SKIP_TMAN += column_nogroff emptyhead emptytag
+
+# mandoc -T markdown still has issues with badly nested lists
+
+SKIP_MARKDOWN ?= break
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Bl/badargs.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/badargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/badargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,79 @@
+.\" $OpenBSD: badargs.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-BADARGS 1
+.Os
+.Sh NAME
+.Nm Bl-badargs
+.Nd list with bad arguments
+.Sh DESCRIPTION
+trailing -offset:
+.Bl -bullet -offset
+.It
+is ignored
+.El
+trailing -width:
+.Bl -bullet -width
+.It
+bullet
+.El
+.Bl -dash -width
+.It
+dash
+.El
+.\" XXX Doesn't work with -Tman yet.
+.\" .Bl -enum -width
+.\" .It
+.\" enum
+.\" .El
+.Bl -hyphen -width
+.It
+hyphen
+.El
+.Bl -hang -width
+.It hang
+item
+.El
+.Bl -tag -width
+.It tag
+Here we need a very long line.
+It must be sufficiently long such that it wraps the line.
+.El
+double type:
+.Bl -bullet -compact -enum
+.It
+bullet enum
+.El
+.Bl -enum -compact -bullet
+.It
+enum bullet
+.El
+unknown arguments:
+.Bl -bullet -bogus args
+.It
+bullet text
+.El
+.Bl -enum -bogus args
+.It
+enum text
+.El
+.Bl -inset -bogus args
+.It inset
+text
+.El
+.Bl -item -bogus args
+.It
+item text
+.El
+.Bl -ohang -bogus args
+.It ohang
+text
+.El
+.Bl -tag -width Ds -bogus args
+.It tag
+text
+.El
+double arguments:
+.Bl -tag -compact -offset 20n -width 20n -compact -offset 2n -width 6n
+.It last
+wins
+.El tail argument

Added: vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+BL-BADARGS(1)               General Commands Manual              BL-BADARGS(1)
+
+NNAAMMEE
+     BBll--bbaaddaarrggss - list with bad arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     trailing -offset:
+
+     ++oo   is ignored
+     trailing -width:
+
+     ++oo bullet
+
+     -- dash
+
+     -- hyphen
+
+     hang item
+
+     tag
+       Here we need a very long line.  It must be sufficiently long such that
+       it wraps the line.
+     double type:
+     ++oo   bullet enum
+     1.   enum bullet
+     unknown arguments:
+
+     ++oo   bullet text
+
+     1.   enum text
+
+     inset text
+
+     item text
+
+     ohang
+     text
+
+     tag     text
+     double arguments:
+       last    wins
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+mandoc: badargs.in:79:2: ERROR: skipping all arguments: El tail argument
+mandoc: badargs.in:10:13: WARNING: empty argument, using 0n: Bl -offset
+mandoc: badargs.in:15:13: WARNING: empty argument, using 0n: Bl -width
+mandoc: badargs.in:19:11: WARNING: empty argument, using 0n: Bl -width
+mandoc: badargs.in:28:13: WARNING: empty argument, using 0n: Bl -width
+mandoc: badargs.in:32:11: WARNING: empty argument, using 0n: Bl -width
+mandoc: badargs.in:36:10: WARNING: empty argument, using 0n: Bl -width
+mandoc: badargs.in:42:2: WARNING: skipping duplicate list type: Bl -enum
+mandoc: badargs.in:46:2: WARNING: skipping duplicate list type: Bl -bullet
+mandoc: badargs.in:51:13: ERROR: skipping excess arguments: Bl ... -bogus
+mandoc: badargs.in:55:11: ERROR: skipping excess arguments: Bl ... -bogus
+mandoc: badargs.in:59:12: ERROR: skipping excess arguments: Bl ... -bogus
+mandoc: badargs.in:63:11: ERROR: skipping excess arguments: Bl ... -bogus
+mandoc: badargs.in:67:12: ERROR: skipping excess arguments: Bl ... -bogus
+mandoc: badargs.in:71:20: ERROR: skipping excess arguments: Bl ... -bogus
+mandoc: badargs.in:76:42: WARNING: duplicate argument: Bl -compact
+mandoc: badargs.in:76:51: WARNING: duplicate argument: Bl -offset 2n
+mandoc: badargs.in:76:62: WARNING: duplicate argument: Bl -width 6n

Added: vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/badargs.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,60 @@
+BL-BADARGS(1) - General Commands Manual
+
+# NAME
+
+**Bl-badargs** - list with bad arguments
+
+# DESCRIPTION
+
+trailing -offset:
+
+*	is ignored
+
+trailing -width:
+
+*	bullet
+
+-	dash
+
+-	hyphen
+
+hang
+
+> item
+
+tag
+
+> Here we need a very long line.
+> It must be sufficiently long such that it wraps the line.
+
+double type:
+
+*	bullet enum
+
+1.	enum bullet
+
+unknown arguments:
+
+*	bullet text
+
+1.	enum text
+
+inset
+text
+
+item text
+
+ohang  
+text
+
+tag
+
+> text
+
+double arguments:
+
+last
+
+> wins
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareIt.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareIt.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareIt.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: bareIt.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-BAREIT 1
+.Os
+.Sh NAME
+.Nm Bl-bareIt
+.Nd item macro outside list
+.Sh DESCRIPTION
+initial text
+.It argument
+.Bl -dash
+.It
+item
+.El
+.It argument
+final text

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+BL-BAREIT(1)                General Commands Manual               BL-BAREIT(1)
+
+NNAAMMEE
+     BBll--bbaarreeIItt - item macro outside list
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text
+
+     --   item
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: bareIt.in:10:2: ERROR: skipping item outside list: It argument
+mandoc: bareIt.in:15:2: ERROR: skipping item outside list: It argument
+mandoc: bareIt.in:10:2: WARNING: skipping paragraph macro: br before Bl

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareIt.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BL-BAREIT(1) - General Commands Manual
+
+# NAME
+
+**Bl-bareIt** - item macro outside list
+
+# DESCRIPTION
+
+initial text
+
+-	item
+
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareTa.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareTa.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareTa.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: bareTa.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TA-BARE 1
+.Os
+.Sh NAME
+.Nm Ta-bare
+.Nd bare tabular column macro
+.Sh DESCRIPTION
+initial text
+.Ta ignored arguments
+middle text
+.Bl -item -offset indent
+.It
+.Ta ignored arguments
+indented text
+.El
+middle text
+.Bl -dash
+.It Ta ignored arguments
+indented text
+.El
+middle text
+.Bl -column "a" "b" -offset indent
+.It a Ta b
+.El
+.It ignored arguments
+final text

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+TA-BARE(1)                  General Commands Manual                 TA-BARE(1)
+
+NNAAMMEE
+     TTaa--bbaarree - bare tabular column macro
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text middle text
+
+           indented text
+     middle text
+
+     --   indented text
+     middle text
+
+           a    b
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: bareTa.in:10:2: ERROR: skipping column outside column list: Ta
+mandoc: bareTa.in:14:2: ERROR: skipping column outside column list: Ta
+mandoc: bareTa.in:19:5: ERROR: skipping column outside column list: Ta
+mandoc: bareTa.in:26:2: ERROR: skipping item outside list: It ignored arguments
+mandoc: bareTa.in:19:2: ERROR: skipping all arguments: It ignored arguments

Added: vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bareTa.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+TA-BARE(1) - General Commands Manual
+
+# NAME
+
+**Ta-bare** - bare tabular column macro
+
+# DESCRIPTION
+
+initial text
+middle text
+
+indented text
+
+middle text
+
+-	indented text
+
+middle text
+
+	a    b
+
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,78 @@
+.\" $OpenBSD: break.in,v 1.7 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-BREAK 1
+.Os
+.Sh NAME
+.Nm Bl-break
+.Nd list breaking another block
+.Sh DESCRIPTION
+before both
+.Bl -enum -offset indent
+.It
+before bracket
+.Bo inside both
+.El
+after list
+.Bc
+in between
+.Bl -enum -offset indent
+.It
+before bracket
+.Bo inside both
+.El
+.It
+stray item
+.Bc
+after both
+.Sh EXAMPLES
+.Bl -enum -offset indent
+.It
+before display
+.Bd -ragged -offset indent
+inside both
+.El
+after display
+.Ed
+in between
+.Bl -enum -offset indent
+.It
+before display
+.Bd -ragged -offset indent
+inside both
+.El
+.It
+stray item
+.Ed
+after both
+.Bl -enum -offset indent
+.It
+before table
+.Bl -column column
+.It column
+.Bd -ragged -offset indent
+inside display
+.El
+first line after table
+second line after table
+.El
+after list
+.Sh DIAGNOSTICS
+.Bl -column column
+.It column
+.Bd -ragged -offset indent
+inside display
+.El
+.Ta stray tab
+after stray tab
+.Ed
+after display
+.Sh CAVEATS
+.Bl -hang
+.It before broken block Bo inside both
+.El
+after list
+.Sh BUGS
+.Bl -enum
+.It before broken block Bo inside both
+.El
+after list

Added: vendor/mandoc/dist/regress/mdoc/Bl/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+BL-BREAK(1)                 General Commands Manual                BL-BREAK(1)
+
+NNAAMMEE
+     BBll--bbrreeaakk - list breaking another block
+
+DDEESSCCRRIIPPTTIIOONN
+     before both
+
+           1.   before bracket [inside both after list]
+     in between
+
+           1.   before bracket [inside both
+                stray item]
+     after both
+
+EEXXAAMMPPLLEESS
+           1.   before display
+
+                      inside both after display
+     in between
+
+           1.   before display
+
+                      inside both
+                      stray item
+     after both
+
+           1.   before table
+
+                column
+
+                      inside display first line after table second line after
+                      table after list
+
+
+DDIIAAGGNNOOSSTTIICCSS
+     column
+
+           inside display after stray tab
+
+     after display
+
+CCAAVVEEAATTSS
+     before broken block [inside both after list]
+
+BBUUGGSS
+     1.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+mandoc: break.in:14:2: WARNING: blocks badly nested: Bl breaks Bo
+mandoc: break.in:22:2: WARNING: blocks badly nested: Bl breaks Bo
+mandoc: break.in:23:2: ERROR: skipping item outside list: It 
+mandoc: break.in:33:2: WARNING: blocks badly nested: Bl breaks Bd
+mandoc: break.in:42:2: WARNING: blocks badly nested: Bl breaks Bd
+mandoc: break.in:43:2: ERROR: skipping item outside list: It 
+mandoc: break.in:54:2: WARNING: blocks badly nested: Bl breaks Bd
+mandoc: break.in:57:2: WARNING: blocks badly nested: Bl breaks Bd
+mandoc: break.in:59:2: ERROR: inserting missing end of block: Sh breaks Bd
+mandoc: break.in:64:2: WARNING: blocks badly nested: Bl breaks Bd
+mandoc: break.in:65:2: ERROR: skipping column outside column list: Ta
+mandoc: break.in:72:2: WARNING: blocks badly nested: Bl breaks Bo
+mandoc: break.in:74:2: ERROR: inserting missing end of block: Sh breaks Bo
+mandoc: break.in:77:2: WARNING: blocks badly nested: Bl breaks Bo
+mandoc: break.in:76:25: ERROR: appending missing end of block: Bo
+mandoc: break.in:75:2: ERROR: appending missing end of block: Bl
+mandoc: break.in:76:2: WARNING: empty list item: Bl -enum It
+mandoc: break.in:76:2: ERROR: skipping all arguments: It before broken block

Added: vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,70 @@
+.\" $OpenBSD: breakingIt.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-BREAKINGIT 1
+.Os
+.Sh NAME
+.Nm Bl-breakingIt
+.Nd items breaking other blocks
+.Sh DESCRIPTION
+.Ss Breaking partial explicit macros
+.Bl -tag -width Ds
+Stray text.
+.Ao
+More stray text
+.It tag
+Tagged text.
+.El
+.Bl -bullet
+Stray text.
+.Ao
+More stray text
+.It
+Bullet point.
+.El
+.Bl -tag -width Ds
+.It tag
+Tagged text.
+.Ao
+More tagged text
+.It tag2
+Yet more tagged text.
+.El
+.Bl -bullet
+.It
+Item text.
+.Ao
+More item text
+.It
+Bullet point.
+.El
+.Ss Breaking full explicit macros
+.Bl -tag -width Ds
+Stray text.
+.Bd -ragged -offset indent
+More stray text.
+.It tag
+Tagged text.
+.El
+.Bl -bullet
+Stray text.
+.Bd -ragged -offset indent
+More stray text.
+.It
+Bullet point.
+.El
+.Bl -tag -width Ds
+.It tag
+Tagged text.
+.Bd -ragged -offset indent
+Display text.
+.It tag2
+More tagged text.
+.El
+.Bl -bullet
+.It
+Item text.
+.Bd -ragged -offset indent
+Display text.
+.It
+Bullet point.
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,47 @@
+BL-BREAKINGIT(1)            General Commands Manual           BL-BREAKINGIT(1)
+
+NNAAMMEE
+     BBll--bbrreeaakkiinnggIItt - items breaking other blocks
+
+DDEESSCCRRIIPPTTIIOONN
+   BBrreeaakkiinngg ppaarrttiiaall eexxpplliicciitt mmaaccrrooss
+     Stray text.  <More stray text>
+
+     tag     Tagged text.
+     Stray text.  <More stray text>
+
+     ++oo   Bullet point.
+
+     tag     Tagged text.  <More tagged text>
+
+     tag2    Yet more tagged text.
+
+     ++oo   Item text.  <More item text>
+
+     ++oo   Bullet point.
+
+   BBrreeaakkiinngg ffuullll eexxpplliicciitt mmaaccrrooss
+     Stray text.
+
+           More stray text.
+
+     tag     Tagged text.
+     Stray text.
+
+           More stray text.
+
+     ++oo   Bullet point.
+
+     tag     Tagged text.
+
+                   Display text.
+
+     tag2    More tagged text.
+
+     ++oo   Item text.
+
+               Display text.
+
+     ++oo   Bullet point.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+mandoc: breakingIt.in:14:2: ERROR: inserting missing end of block: It breaks Ao
+mandoc: breakingIt.in:21:2: ERROR: inserting missing end of block: It breaks Ao
+mandoc: breakingIt.in:29:2: ERROR: inserting missing end of block: It breaks Ao
+mandoc: breakingIt.in:37:2: ERROR: inserting missing end of block: It breaks Ao
+mandoc: breakingIt.in:45:2: ERROR: inserting missing end of block: It breaks Bd
+mandoc: breakingIt.in:52:2: ERROR: inserting missing end of block: It breaks Bd
+mandoc: breakingIt.in:60:2: ERROR: inserting missing end of block: It breaks Bd
+mandoc: breakingIt.in:68:2: ERROR: inserting missing end of block: It breaks Bd
+mandoc: breakingIt.in:11:1: WARNING: moving content out of list: text
+mandoc: breakingIt.in:12:2: WARNING: moving content out of list: Ao
+mandoc: breakingIt.in:18:1: WARNING: moving content out of list: text
+mandoc: breakingIt.in:19:2: WARNING: moving content out of list: Ao
+mandoc: breakingIt.in:42:1: WARNING: moving content out of list: text
+mandoc: breakingIt.in:43:2: WARNING: moving content out of list: Bd
+mandoc: breakingIt.in:49:1: WARNING: moving content out of list: text
+mandoc: breakingIt.in:50:2: WARNING: moving content out of list: Bd

Added: vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/breakingIt.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,69 @@
+BL-BREAKINGIT(1) - General Commands Manual
+
+# NAME
+
+**Bl-breakingIt** - items breaking other blocks
+
+# DESCRIPTION
+
+## Breaking partial explicit macros
+
+Stray text.
+<More stray text>
+
+tag
+
+> Tagged text.
+
+Stray text.
+<More stray text>
+
+*	Bullet point.
+
+tag
+
+> Tagged text.
+> <More tagged text>
+
+tag2
+
+> Yet more tagged text.
+
+*	Item text.
+	<More item text>
+
+*	Bullet point.
+
+## Breaking full explicit macros
+
+Stray text.
+
+> More stray text.
+
+tag
+
+> Tagged text.
+
+Stray text.
+
+> More stray text.
+
+*	Bullet point.
+
+tag
+
+> Tagged text.
+
+> > Display text.
+
+tag2
+
+> More tagged text.
+
+*	Item text.
+
+	> Display text.
+
+*	Bullet point.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: breakingTa.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-BREAKINGTA 1
+.Os
+.Sh NAME
+.Nm Bl-breakingTa
+.Nd tab macro breaking a block
+.Sh DESCRIPTION
+.\" Crashed before mdoc_macro.c OpenBSD rev. 1.172
+initial text
+.Bl -column 123456 123456
+.It it Aq aq Ta ta Bo bo bc
+.Bc Pq pq
+.El
+final text

Added: vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+BL-BREAKINGTA(1)            General Commands Manual           BL-BREAKINGTA(1)
+
+NNAAMMEE
+     BBll--bbrreeaakkiinnggTTaa - tab macro breaking a block
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text
+
+     it <aq>   ta [bo bc] (pq)
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/breakingTa.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BL-BREAKINGTA(1) - General Commands Manual
+
+# NAME
+
+**Bl-breakingTa** - tab macro breaking a block
+
+# DESCRIPTION
+
+initial text
+
+	it <aq>   ta [bo bc] (pq)
+
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/broken.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+.\" $OpenBSD: broken.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-BROKEN 1
+.Os
+.Sh NAME
+.Nm Bl-broken
+.Nd list broken by another block
+.Sh DESCRIPTION
+before both
+.Bo before list
+.Bl -enum -offset indent
+.It
+inside both
+.Bc
+after bracket
+.El
+after list
+.Bo before list
+.Bl -enum -offset indent
+.It
+inside list
+.Bd -ragged -offset indent
+inside display
+.Bc
+after bracket
+.It
+next item
+.El
+after list

Added: vendor/mandoc/dist/regress/mdoc/Bl/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+BL-BROKEN(1)                General Commands Manual               BL-BROKEN(1)
+
+NNAAMMEE
+     BBll--bbrrookkeenn - list broken by another block
+
+DDEESSCCRRIIPPTTIIOONN
+     before both [before list
+
+           1.   inside both] after bracket
+     after list [before list
+
+           1.   inside list
+
+                      inside display] after bracket
+
+           2.   next item
+     after list
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: broken.in:14:2: WARNING: blocks badly nested: Bo breaks Bl
+mandoc: broken.in:24:2: WARNING: blocks badly nested: Bo breaks Bd
+mandoc: broken.in:26:2: ERROR: inserting missing end of block: It breaks Bd

Added: vendor/mandoc/dist/regress/mdoc/Bl/broken.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/broken.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/broken.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+BL-BROKEN(1) - General Commands Manual
+
+# NAME
+
+**Bl-broken** - list broken by another block
+
+# DESCRIPTION
+
+before both
+\[before list
+
+1.	inside both]
+	after bracket
+
+after list
+\[before list
+
+1.	inside list
+
+	> inside display]
+	> after bracket
+
+2.	next item
+
+after list
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/bullet.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bullet.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bullet.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,82 @@
+.\" $OpenBSD: bullet.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-BULLET 1
+.Os
+.Sh NAME
+.Nm Bl-bullet
+.Nd bullet lists
+.Sh DESCRIPTION
+.Bl -bullet -width -4n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width -3n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width -2n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width -1n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 0n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 1n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 2n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 3n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 4n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 5n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 6n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -width 7n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -bullet -compact
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/bullet.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bullet.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bullet.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+BL-BULLET(1)                General Commands Manual               BL-BULLET(1)
+
+NNAAMMEE
+     BBll--bbuulllleett - bullet lists
+
+DDEESSCCRRIIPPTTIIOONN
+     ++oo x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+   x x x x
+
+     ++oo x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+    x x x x
+
+     ++oo x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x
+
+     ++oo x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+      x x x x
+
+     ++oo x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+       x x x x
+
+     ++oo  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+        x x x x x
+
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+     ++oo    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+
+     ++oo     x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+           x x x x x x
+
+     ++oo      x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     ++oo       x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+             x x x x x x x
+
+     ++oo        x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+              x x x x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     ++oo   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/bullet.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/bullet.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/bullet.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+BL-BULLET(1) - General Commands Manual
+
+# NAME
+
+**Bl-bullet** - bullet lists
+
+# DESCRIPTION
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+*	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: colNoIt.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-COLNOIT 1
+.Os
+.Sh NAME
+.Nm Bl-colNoIt
+.Nd column lists without item macros
+.Sh DESCRIPTION
+.Bl -column "a" "b"
+.Sy a Ta b
+.Em c Ta d
+.El
+.Bl -column "a" "b"
+a	b
+c	d
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+BL-COLNOIT(1)               General Commands Manual              BL-COLNOIT(1)
+
+NNAAMMEE
+     BBll--ccoollNNooIItt - column lists without item macros
+
+DDEESSCCRRIIPPTTIIOONN
+     aa    b
+     _c    d
+
+     a    b
+     c    d
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/colNoIt.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BL-COLNOIT(1) - General Commands Manual
+
+# NAME
+
+**Bl-colNoIt** - column lists without item macros
+
+# DESCRIPTION
+
+	**a** b  
+	*c*  d
+
+	a    b  
+	c    d
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/column.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,109 @@
+.\" $OpenBSD: column.in,v 1.10 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-COLUMN 1
+.Os
+.Sh NAME
+.Nm Bl-column
+.Nd lists with multiple columns
+.Sh DESCRIPTION
+.Bl -column "a"
+.It a
+.El
+.Bl -column "a" "b"
+.It a Ta b
+.El
+.\" avoid "c" which means "cm"
+.Bl -column "a" "b" "cc"
+.It a Ta b Ta cc
+.It a	b	cc
+.It "a"	b	cc
+.It "a	b"	cc
+.It "a	b	cc"
+.El
+.Bl -column "a" "b" "cc" "d"
+.It a Ta b Ta cc Ta d
+.El
+.Bl -column "a" "b" "cc" "d" "e"
+.It a Ta b Ta cc Ta d Ta e
+.El
+.\" Probing up to the utter limits of groff.
+.\" With more than 5 columns or more than 78 characters per line,
+.\" groff .Bl -column turns completely mad.
+.\" mandoc can do more, but it's no use testing that.
+.Bd -literal
+5 + 35 + 4 + 34 = 78:
+.Ed
+.Bl -column "x35xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"  "x34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+.It          x35xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Ta x34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+.It a Ta b
+.El
+.Bd -literal
+5 + (22+4)*2 + 21 = 78:
+.Ed
+.Bl -column "x22xxxxxxxxxxxxxxxxxxx"  "x22xxxxxxxxxxxxxxxxxxx"  "x21xxxxxxxxxxxxxxxxxx"
+.It          x22xxxxxxxxxxxxxxxxxxx Ta x22xxxxxxxxxxxxxxxxxxx Ta x21xxxxxxxxxxxxxxxxxx
+.It a Ta b Ta c
+.El
+.Bd -literal
+5 + 16 + (4+15)*3 = 78:
+.Ed
+.Bl -column "x16xxxxxxxxxxxxx"  "x15xxxxxxxxxxxx"  "x15xxxxxxxxxxxx"  "x15xxxxxxxxxxxx"
+.It          x16xxxxxxxxxxxxx Ta x15xxxxxxxxxxxx Ta x15xxxxxxxxxxxx Ta x15xxxxxxxxxxxx
+.It a Ta b Ta c Ta d
+.El
+.Bd -literal
+5 + 13 + (3+12)*4 = 78:
+.Ed
+.Bl -column "x13xxxxxxxxxx"  "x12xxxxxxxxx"  "x12xxxxxxxxx"  "x12xxxxxxxxx"  "x12xxxxxxxxx"
+.It          x13xxxxxxxxxx Ta x12xxxxxxxxx Ta x12xxxxxxxxx Ta x12xxxxxxxxx Ta x12xxxxxxxxx
+.It a Ta b Ta c Ta d Ta e
+.El
+.\" Trailing white space in phrases.
+.Bl -column "aaaa" "bbbb"
+.It "a" Ta "b"
+.It "a " Ta "b"
+.It "a  " Ta "b"
+.It a	b
+.It a 	b
+.It a  	b
+.El
+.\" Wrong number of columns.
+.Bl -column "a" "b"
+.It
+.It "a"
+.It "a" Ta "b"
+.It
+.It "a" Ta "b" Ta "c"
+.It "a" Ta "b" Ta "c" Ta "d"
+.It "a" Ta "b" Ta "c" Ta "d" Ta "e"
+.It
+.El
+.\" Mixed tab and Ta
+.Bl -column a b c d
+.It a	b	c	d
+.It a	b	c Ta d
+.It a	b Ta c	d
+.It a	b Ta c Ta d
+.It a Ta b	c	d
+.It a Ta b	c Ta d
+.It a Ta b Ta c	d
+.It a Ta b Ta c Ta d
+.El
+.\" Macros before and after tabs
+.Bl -column "aa" "OpenBSD OpenBSD OpenBSD"
+.It aa Ta Ox Ox Ox Ta tab-tab
+.It aa Ta Ox Ox Ox	tab-ta
+.It aa	Ox Ox Ox Ta ta-tab
+.It aa	Ox Ox Ox	ta-ta
+.It aa	Ox Ox Ox 	ta-bl/ta
+.It aa	 Ox Ox Ox	ta/bl-ta
+.It aa	  Ox Ox Ox 	ta/bl-bl/ta
+.It aa Ta bb Ta
+ta at eol
+.It aa	bb	
+tab at eol
+.El
+.\" Interrupted column list
+.Bl -column "aa" -width 6n -compact "bb" "cc"
+.It aa Ta bb Ta cc Ta dd
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/column.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,74 @@
+BL-COLUMN(1)                General Commands Manual               BL-COLUMN(1)
+
+NNAAMMEE
+     BBll--ccoolluummnn - lists with multiple columns
+
+DDEESSCCRRIIPPTTIIOONN
+     a
+
+     a    b
+
+     a    b    cc
+     a    b    cc
+     a    b    cc
+     a    b    cc
+     a    b    cc
+
+     a    b    cc    d
+
+     a   b   cc   d   e
+
+     5 + 35 + 4 + 34 = 78:
+
+     x35xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx    x34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+     a                                      b
+
+     5 + (22+4)*2 + 21 = 78:
+
+     x22xxxxxxxxxxxxxxxxxxx    x22xxxxxxxxxxxxxxxxxxx    x21xxxxxxxxxxxxxxxxxx
+     a                         b                         c
+
+     5 + 16 + (4+15)*3 = 78:
+
+     x16xxxxxxxxxxxxx    x15xxxxxxxxxxxx    x15xxxxxxxxxxxx    x15xxxxxxxxxxxx
+     a                   b                  c                  d
+
+     5 + 13 + (3+12)*4 = 78:
+
+     x13xxxxxxxxxx   x12xxxxxxxxx   x12xxxxxxxxx   x12xxxxxxxxx   x12xxxxxxxxx
+     a               b              c              d              e
+
+     a       b
+     a       b
+     a       b
+     a       b
+     a       b
+     a       b
+
+     a
+     a    b
+     a    b    c
+     a    b    cd
+     a    b    cde
+
+     a    b    c    d
+     a    b    c    d
+     a    b    c    d
+     a    b    c    d
+     a    b    c    d
+     a    b    c    d
+     a    b    c    d
+     a    b    c    d
+
+     aa    OpenBSD OpenBSD OpenBSD    tab-tab
+     aa    OpenBSD OpenBSD Ox         tab-ta
+     aa    Ox OpenBSD OpenBSD         ta-tab
+     aa    Ox OpenBSD Ox              ta-ta
+     aa    Ox OpenBSD OpenBSD         ta-bl/ta
+     aa     OpenBSD OpenBSD Ox        ta/bl-ta
+     aa     OpenBSD OpenBSD OpenBSD   ta/bl-bl/ta
+     aa    bb                         ta at eol
+     aa    bb                          tab at eol
+     aa    bb    cc    dd
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/column.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+mandoc: column.in:72:2: WARNING: skipping empty macro: It
+mandoc: column.in:73:2: WARNING: wrong number of cells: 2 columns, 1 cells
+mandoc: column.in:75:2: WARNING: skipping empty macro: It
+mandoc: column.in:77:2: WARNING: wrong number of cells: 2 columns, 4 cells
+mandoc: column.in:78:2: WARNING: wrong number of cells: 2 columns, 5 cells
+mandoc: column.in:79:2: WARNING: skipping empty macro: It
+mandoc: column.in:107:18: WARNING: skipping -width argument: Bl -column

Added: vendor/mandoc/dist/regress/mdoc/Bl/column.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,78 @@
+BL-COLUMN(1) - General Commands Manual
+
+# NAME
+
+**Bl-column** - lists with multiple columns
+
+# DESCRIPTION
+
+	a
+
+	a    b
+
+	a    b    cc  
+	a    b    cc  
+	a    b    cc  
+	a    b    cc  
+	a    b    cc
+
+	a    b    cc    d
+
+	a   b   cc   d   e
+
+	5 + 35 + 4 + 34 = 78:
+
+	x35xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx    x34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  
+	a                                      b
+
+	5 + (22+4)*2 + 21 = 78:
+
+	x22xxxxxxxxxxxxxxxxxxx    x22xxxxxxxxxxxxxxxxxxx    x21xxxxxxxxxxxxxxxxxx  
+	a                         b                         c
+
+	5 + 16 + (4+15)*3 = 78:
+
+	x16xxxxxxxxxxxxx    x15xxxxxxxxxxxx    x15xxxxxxxxxxxx    x15xxxxxxxxxxxx  
+	a                   b                  c                  d
+
+	5 + 13 + (3+12)*4 = 78:
+
+	x13xxxxxxxxxx   x12xxxxxxxxx   x12xxxxxxxxx   x12xxxxxxxxx   x12xxxxxxxxx  
+	a               b              c              d              e
+
+	a       b  
+	a       b  
+	a       b  
+	a       b  
+	a       b  
+	a       b
+
+	a  
+	a    b  
+	a    b    c  
+	a    b    c d  
+	a    b    c d e
+
+	a    b    c    d  
+	a    b    c    d  
+	a    b    c    d  
+	a    b    c    d  
+	a    b    c    d  
+	a    b    c    d  
+	a    b    c    d  
+	a    b    c    d
+
+	aa    OpenBSD OpenBSD OpenBSD    tab-tab  
+	aa    OpenBSD OpenBSD Ox         tab-ta  
+	aa    Ox OpenBSD OpenBSD         ta-tab  
+	aa    Ox OpenBSD Ox              ta-ta  
+	aa    Ox OpenBSD OpenBSD         ta-bl/ta  
+	aa     OpenBSD OpenBSD Ox        ta/bl-ta  
+	aa     OpenBSD OpenBSD OpenBSD   ta/bl-bl/ta  
+	aa    bb                         ta at eol  
+	aa    bb                         
+	tab at eol
+
+	aa    bb    cc    dd
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: column_nogroff.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-COLUMN_NOGROFF 1
+.Os
+.Sh NAME
+.Nm Bl-column_nogroff
+.Nd column lists mishandled by groff
+.Sh DESCRIPTION
+Item macro without arguments:
+.Bl -column "first column" "second column"
+.It
+text
+.No macro Ta after tab
+.El
+.Pp
+Tab macro at the beginning of a line:
+.Bl -column "aa" "bb"
+.It aa
+.Ta bb
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BL-COLUMN_NOGROFF(1)        General Commands Manual       BL-COLUMN_NOGROFF(1)
+
+NNAAMMEE
+     BBll--ccoolluummnn__nnooggrrooffff - column lists mishandled by groff
+
+DDEESSCCRRIIPPTTIIOONN
+     Item macro without arguments:
+
+     text macro      after tab
+
+     Tab macro at the beginning of a line:
+
+     aa    bb
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: column_nogroff.in:11:2: WARNING: missing argument, using next line: Bl -column It
+mandoc: column_nogroff.in:19:2: WARNING: first macro on line: Ta

Added: vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/column_nogroff.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+BL-COLUMN\_NOGROFF(1) - General Commands Manual
+
+# NAME
+
+**Bl-column\_nogroff** - column lists mishandled by groff
+
+# DESCRIPTION
+
+Item macro without arguments:
+
+	text
+	macro           after tab
+
+Tab macro at the beginning of a line:
+
+	aa    bb
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/dash.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/dash.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/dash.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,82 @@
+.\" $OpenBSD: dash.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-DASH 1
+.Os
+.Sh NAME
+.Nm Bl-dash
+.Nd dash and hyphen lists
+.Sh DESCRIPTION
+.Bl -dash -width -4n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width -3n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width -2n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width -1n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width 0n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -hyphen -width 1n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width 2n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width 3n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -hyphen -width 4n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -hyphen -width 5n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width 6n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -width 7n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -dash -compact
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/dash.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/dash.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/dash.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+BL-DASH(1)                  General Commands Manual                 BL-DASH(1)
+
+NNAAMMEE
+     BBll--ddaasshh - dash and hyphen lists
+
+DDEESSCCRRIIPPTTIIOONN
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+   x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+    x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+      x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+       x x x x
+
+     --  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+        x x x x x
+
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+     --    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+
+     --     x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+           x x x x x x
+
+     --      x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     --       x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+             x x x x x x x
+
+     --        x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+              x x x x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/dash.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/dash.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/dash.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+BL-DASH(1) - General Commands Manual
+
+# NAME
+
+**Bl-dash** - dash and hyphen lists
+
+# DESCRIPTION
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+-	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/dash.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/dash.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/dash.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+BL-DASH(1)                  General Commands Manual                 BL-DASH(1)
+
+NNAAMMEE
+     BBll--ddaasshh – dash and hyphen lists
+
+DDEESSCCRRIIPPTTIIOONN
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+   x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+    x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+      x x x x
+
+     -- x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+       x x x x
+
+     --  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+        x x x x x
+
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+     --    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+
+     --     x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+           x x x x x x
+
+     --      x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     --       x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+             x x x x x x x
+
+     --        x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+              x x x x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+     --   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/diag.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/diag.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/diag.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,56 @@
+.\" $OpenBSD: diag.in,v 1.7 2017/07/16 17:53:29 schwarze Exp $
+.Dd $Mdocdate: July 16 2017 $
+.Dt BL-DIAG 1
+.Os
+.Sh NAME
+.Nm Bl-diag
+.Nd section 4 diagnostic lists
+.Sh DESCRIPTION
+.Bl -diag
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag
+.It four
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag
+.It quint
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag
+.It indent
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag
+.It septime
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag
+.It achtacht
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag
+.It neun_neun
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag
+.It zehn__zehn
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -diag -width 10n
+.It This is a very long text contained in the diag item head, it is \
+so long that it overruns the line -
+and here comes the item body,
+which is also long enough to break the line again.
+.El
+.Pp
+Check that It is not parsed in Bl:
+.Bl -diag -compact
+.It Nx
+.No Nx
+.It Ox
+.No Ox
+.It Fx
+.No Fx
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/diag.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/diag.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/diag.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,40 @@
+BL-DIAG(1)                  General Commands Manual                 BL-DIAG(1)
+
+NNAAMMEE
+     BBll--ddiiaagg - section 4 diagnostic lists
+
+DDEESSCCRRIIPPTTIIOONN
+     ttaagg  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x
+
+     ffoouurr  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x
+
+     qquuiinntt  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x
+
+     iinnddeenntt  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x
+
+     sseeppttiimmee  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x
+
+     aacchhttaacchhtt  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x
+
+     nneeuunn__nneeuunn  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x x
+
+     zzeehhnn____zzeehhnn  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x x
+
+     TThhiiss iiss aa vveerryy lloonngg tteexxtt ccoonnttaaiinneedd iinn tthhee ddiiaagg iitteemm hheeaadd,, iitt iiss ssoo lloonngg
+     tthhaatt iitt oovveerrrruunnss tthhee lliinnee --  and here comes the item body, which is also
+     long enough to break the line again.
+
+     Check that It is not parsed in Bl:
+     NNxx  NetBSD
+     OOxx  OpenBSD
+     FFxx  FreeBSD
+
+OpenBSD                          July 16, 2017                         OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/diag.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/diag.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/diag.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: diag.in:51:2: WARNING: skipping empty macro: No
+mandoc: diag.in:53:2: WARNING: skipping empty macro: No
+mandoc: diag.in:55:2: WARNING: skipping empty macro: No
+mandoc: diag.in:41:11: WARNING: skipping -width argument: Bl -diag

Added: vendor/mandoc/dist/regress/mdoc/Bl/diag.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/diag.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/diag.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+BL-DIAG(1) - General Commands Manual
+
+# NAME
+
+**Bl-diag** - section 4 diagnostic lists
+
+# DESCRIPTION
+
+tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+four
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+quint
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+indent
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+septime
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+achtacht
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+neun\_neun
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+zehn\_\_zehn
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+This is a very long text contained in the diag item head, it is so long that it overruns the line -
+and here comes the item body,
+which is also long enough to break the line again.
+
+Check that It is not parsed in Bl:
+
+Nx
+NetBSD  
+Ox
+OpenBSD  
+Fx
+FreeBSD
+
+OpenBSD - July 16, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+.\" $OpenBSD: empty.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-EMPTY 1
+.Os
+.Sh NAME
+.Nm Bl-empty
+.Nd empty lists
+.Sh DESCRIPTION
+bullet list:
+.Bl -bullet
+.El
+column list:
+.Bl -column one two
+.El
+dash list:
+.Bl -dash
+.El
+diag list:
+.Bl -diag
+.El
+enum list:
+.Bl -enum
+.El
+hang list:
+.Bl -hang
+.El
+hyphen list:
+.Bl -hyphen
+.El
+inset list:
+.Bl -inset
+.El
+item list:
+.Bl -item
+.El
+ohang list:
+.Bl -ohang
+.El
+tag list:
+.Bl -tag -width Ds
+.El
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Bl/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+BL-EMPTY(1)                 General Commands Manual                BL-EMPTY(1)
+
+NNAAMMEE
+     BBll--eemmppttyy - empty lists
+
+DDEESSCCRRIIPPTTIIOONN
+     bullet list:
+     column list:
+     dash list:
+     diag list:
+     enum list:
+     hang list:
+     hyphen list:
+     inset list:
+     item list:
+     ohang list:
+     tag list:
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+mandoc: empty.in:10:2: WARNING: empty block: Bl
+mandoc: empty.in:13:2: WARNING: empty block: Bl
+mandoc: empty.in:16:2: WARNING: empty block: Bl
+mandoc: empty.in:19:2: WARNING: empty block: Bl
+mandoc: empty.in:22:2: WARNING: empty block: Bl
+mandoc: empty.in:25:2: WARNING: empty block: Bl
+mandoc: empty.in:28:2: WARNING: empty block: Bl
+mandoc: empty.in:31:2: WARNING: empty block: Bl
+mandoc: empty.in:34:2: WARNING: empty block: Bl
+mandoc: empty.in:37:2: WARNING: empty block: Bl
+mandoc: empty.in:40:2: WARNING: empty block: Bl

Added: vendor/mandoc/dist/regress/mdoc/Bl/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+BL-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Bl-empty** - empty lists
+
+# DESCRIPTION
+
+bullet list:
+
+column list:
+
+dash list:
+
+diag list:
+
+enum list:
+
+hang list:
+
+hyphen list:
+
+inset list:
+
+item list:
+
+ohang list:
+
+tag list:
+
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,44 @@
+.\" $OpenBSD: emptyhead.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-EMPTYHEAD 1
+.Os
+.Sh NAME
+.Nm Bl-emptyhead
+.Nd lists with empty item heads
+.Sh DESCRIPTION
+hang list:
+.Bl -hang -width 6n
+.It tag
+text
+.It
+no tag before this text
+.It tag
+text
+.El
+ohang list:
+.Bl -ohang
+.It tag
+text
+.It
+no tag before this text
+.It tag
+text
+.El
+inset list:
+.Bl -inset
+.It tag
+text
+.It
+no tag before this text
+.It tag
+text
+.El
+diag list:
+.Bl -diag
+.It tag
+text
+.It
+no tag before this text
+.It tag
+text
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,38 @@
+BL-EMPTYHEAD(1)             General Commands Manual            BL-EMPTYHEAD(1)
+
+NNAAMMEE
+     BBll--eemmppttyyhheeaadd - lists with empty item heads
+
+DDEESSCCRRIIPPTTIIOONN
+     hang list:
+
+     tag     text
+
+             no tag before this text
+
+     tag     text
+     ohang list:
+
+     tag
+     text
+
+     no tag before this text
+
+     tag
+     text
+     inset list:
+
+     tag text
+
+     no tag before this text
+
+     tag text
+     diag list:
+
+     ttaagg  text
+
+       no tag before this text
+
+     ttaagg  text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: emptyhead.in:13:2: WARNING: empty head in list item: Bl -hang It
+mandoc: emptyhead.in:22:2: WARNING: empty head in list item: Bl -ohang It
+mandoc: emptyhead.in:31:2: WARNING: empty head in list item: Bl -inset It
+mandoc: emptyhead.in:40:2: WARNING: empty head in list item: Bl -diag It

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyhead.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,51 @@
+BL-EMPTYHEAD(1) - General Commands Manual
+
+# NAME
+
+**Bl-emptyhead** - lists with empty item heads
+
+# DESCRIPTION
+
+hang list:
+
+tag
+
+> text
+
+> no tag before this text
+
+tag
+
+> text
+
+ohang list:
+
+tag  
+text
+
+no tag before this text
+
+tag  
+text
+
+inset list:
+
+tag
+text
+
+no tag before this text
+
+tag
+text
+
+diag list:
+
+tag
+text
+
+no tag before this text
+
+tag
+text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,40 @@
+.\" $OpenBSD: emptyitem.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-EMPTYITEM 1
+.Os
+.Sh NAME
+.Nm Bl-emptyitem
+.Nd lists with fixed heads and empty items
+.Sh DESCRIPTION
+bullet list:
+.Bl -bullet
+.It head argument
+one
+.It
+.It
+three
+.El
+dash list:
+.Bl -dash
+.It
+one
+.It head argument
+.It
+three
+.El
+enum list:
+.Bl -enum
+.It
+one
+.It
+.It head argument
+three
+.El
+hyphen list:
+.Bl -hyphen
+.It Sy head argument
+one
+.It
+.It
+three
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,36 @@
+BL-EMPTYITEM(1)             General Commands Manual            BL-EMPTYITEM(1)
+
+NNAAMMEE
+     BBll--eemmppttyyiitteemm - lists with fixed heads and empty items
+
+DDEESSCCRRIIPPTTIIOONN
+     bullet list:
+
+     ++oo   one
+
+     ++oo
+
+     ++oo   three
+     dash list:
+
+     --   one
+
+     --
+
+     --   three
+     enum list:
+
+     1.   one
+
+     2.
+
+     3.   three
+     hyphen list:
+
+     --   one
+
+     --
+
+     --   three
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+mandoc: emptyitem.in:11:2: ERROR: skipping all arguments: It head argument
+mandoc: emptyitem.in:13:2: WARNING: empty list item: Bl -bullet It
+mandoc: emptyitem.in:21:2: WARNING: empty list item: Bl -dash It
+mandoc: emptyitem.in:21:2: ERROR: skipping all arguments: It head argument
+mandoc: emptyitem.in:29:2: WARNING: empty list item: Bl -enum It
+mandoc: emptyitem.in:30:2: ERROR: skipping all arguments: It head argument
+mandoc: emptyitem.in:35:2: ERROR: skipping all arguments: It Sy
+mandoc: emptyitem.in:37:2: WARNING: empty list item: Bl -hyphen It

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptyitem.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,41 @@
+BL-EMPTYITEM(1) - General Commands Manual
+
+# NAME
+
+**Bl-emptyitem** - lists with fixed heads and empty items
+
+# DESCRIPTION
+
+bullet list:
+
+*	one
+
+*	
+
+*	three
+
+dash list:
+
+-	one
+
+-	
+
+-	three
+
+enum list:
+
+1.	one
+
+2.	
+
+3.	three
+
+hyphen list:
+
+-	one
+
+-	
+
+-	three
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptytag.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptytag.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptytag.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: emptytag.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-EMPTYTAG 1
+.Os
+.Sh NAME
+.Nm Bl-emptytag
+.Nd tag lists with empty item heads
+.Sh DESCRIPTION
+initial text
+.Bl -tag -width 6n
+.It tag
+text
+.It
+no tag before this text
+.It tag
+text
+.El
+final text

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+BL-EMPTYTAG(1)              General Commands Manual             BL-EMPTYTAG(1)
+
+NNAAMMEE
+     BBll--eemmppttyyttaagg - tag lists with empty item heads
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text
+
+     tag     text
+
+             no tag before this text
+
+     tag     text
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: emptytag.in:13:2: WARNING: empty head in list item: Bl -tag It

Added: vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/emptytag.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+BL-EMPTYTAG(1) - General Commands Manual
+
+# NAME
+
+**Bl-emptytag** - tag lists with empty item heads
+
+# DESCRIPTION
+
+initial text
+
+tag
+
+> text
+
+> no tag before this text
+
+tag
+
+> text
+
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/enum.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/enum.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/enum.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,82 @@
+.\" $OpenBSD: enum.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-ENUM 1
+.Os
+.Sh NAME
+.Nm Bl-enum
+.Nd enumerated lists
+.Sh DESCRIPTION
+.Bl -enum -width -4n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width -3n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width -2n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width -1n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 0n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 1n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 2n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 3n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 4n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 5n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 6n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -width 7n
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -enum -compact
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.It
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/enum.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/enum.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/enum.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+BL-ENUM(1)                  General Commands Manual                 BL-ENUM(1)
+
+NNAAMMEE
+     BBll--eennuumm - enumerated lists
+
+DDEESSCCRRIIPPTTIIOONN
+     1. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+   x x x x x
+
+     1. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+    x x x x x
+
+     1. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x
+
+     1. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+      x x x x x
+
+     1. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+       x x x x x
+
+     1. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+        x x x x x
+
+     1.  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+     1.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+
+     1.    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+           x x x x x x
+
+     1.     x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     1.      x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+             x x x x x x x
+
+     1.       x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+              x x x x x x x x
+     1.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     2.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     3.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     4.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     5.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     6.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     7.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     8.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     9.   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     10.  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     11.  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+     12.  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/enum.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/enum.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/enum.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+BL-ENUM(1) - General Commands Manual
+
+# NAME
+
+**Bl-enum** - enumerated lists
+
+# DESCRIPTION
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+1.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+2.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+3.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+4.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+5.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+6.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+7.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+8.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+9.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+10.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+11.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+12.	x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/extend.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/extend.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/extend.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: extend.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-EXTEND 1
+.Os
+.Sh NAME
+.Nm Bl-extend
+.Nd extending block headers
+.Sh DESCRIPTION
+.\" explicit quoting does not require macro lines per se
+.Ao
+plain quoted text
+.Ac
+.Bl -tag -width Ds
+.It normal tag
+normal text
+.\" when extending It headers, plain text lines fall back
+.\" into the previous It body; so macro lines are required
+.It Ao
+.No extended tag
+.Ac
+extended text
+.It prefix Ao
+.No prefixed tag
+.Ac
+prefixed text
+.\" postfix after closing macro does not work in old groff
+.\" the whole It header gets lost
+.\" .It prefix Ao
+.\" .No braced tag
+.\" .Ac postfix
+.\" braced text
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/extend.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/extend.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/extend.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+BL-EXTEND(1)                General Commands Manual               BL-EXTEND(1)
+
+NNAAMMEE
+     BBll--eexxtteenndd - extending block headers
+
+DDEESSCCRRIIPPTTIIOONN
+     <plain quoted text>
+
+     normal tag
+             normal text
+
+     <extended tag>
+             extended text
+
+     prefix <prefixed tag>
+             prefixed text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/extend.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/extend.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/extend.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+BL-EXTEND(1) - General Commands Manual
+
+# NAME
+
+**Bl-extend** - extending block headers
+
+# DESCRIPTION
+
+<plain quoted text>
+
+normal tag
+
+> normal text
+
+<extended tag>
+
+> extended text
+
+prefix <prefixed tag>
+
+> prefixed text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/hang.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/hang.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/hang.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,112 @@
+.\" $OpenBSD: hang.in,v 1.8 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-HANG 1
+.Os
+.Sh NAME
+.Nm Bl-hang
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+.Sh DESCRIPTION
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+.El
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+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
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+.It septime
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
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+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
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+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -hang -width 5n
+.It zehn__zehn
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -hang -width 5n
+.It This is a very long text contained in the hanged item head, it is \
+so long that it overruns the line -
+and here comes the item body.
+.El
+Compact hanged list:
+.Bl -hang -width 6n -compact
+.It one
+first line
+.It second
+second line
+.It third_tag
+last line
+.El
+Hanged list without a width:
+.Bl -hang
+.It tag
+text
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/hang.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/hang.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/hang.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,85 @@
+BL-HANG(1)                  General Commands Manual                 BL-HANG(1)
+
+NNAAMMEE
+     BBll--hhaanngg - hanged lists
+
+DDEESSCCRRIIPPTTIIOONN
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+   x x x x x x x
+
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+    x x x x x x x x
+
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x
+
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+      x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+      x x x x x x x x x
+
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+       x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+       x x x x x x x x x
+
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+        x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+        x x x x x x x x x x
+
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x x x x x x
+
+     tag  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x x x x x x x
+
+     tag   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+           x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+           x x x x x x x x x x x x
+
+     tag    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x
+
+     four   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x
+
+     quint  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x
+
+     indent x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x
+
+     septime x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x
+
+     achtacht x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x
+
+     neun_neun x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x
+
+     zehn__zehn x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x x x x x x x x x x
+
+     This is a very long text contained in the hanged item head, it is so long
+            that it overruns the line - and here comes the item body.
+     Compact hanged list:
+     one     first line
+     second  second line
+     third_tag last line
+     Hanged list without a width:
+
+     tag     text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/hang.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/hang.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/hang.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,118 @@
+BL-HANG(1) - General Commands Manual
+
+# NAME
+
+**Bl-hang** - hanged lists
+
+# DESCRIPTION
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+four
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+quint
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+indent
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+septime
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+achtacht
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+neun\_neun
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+zehn\_\_zehn
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+This is a very long text contained in the hanged item head, it is so long that it overruns the line -
+
+> and here comes the item body.
+
+Compact hanged list:
+
+one
+
+> first line
+
+second
+
+> second line
+
+third\_tag
+
+> last line
+
+Hanged list without a width:
+
+tag
+
+> text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/inset.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/inset.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/inset.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+.\" $OpenBSD: inset.in,v 1.6 2017/07/16 17:53:29 schwarze Exp $
+.Dd $Mdocdate: July 16 2017 $
+.Dt BL-INSET 1
+.Os
+.Sh NAME
+.Nm Bl-inset
+.Nd inset list labels
+.Sh DESCRIPTION
+.Bl -inset
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -inset
+.It four
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -inset
+.It quint
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -inset
+.It indent
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -inset
+.It septime
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -inset
+.It achtacht
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -inset
+.It neun_neun
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -inset
+.It zehn__zehn
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.\" Trailing white space in the head.
+.Bl -inset -width 10n
+.It "a"
+b
+.It "a "
+b
+.It "a  "
+b
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/inset.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/inset.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/inset.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+BL-INSET(1)                 General Commands Manual                BL-INSET(1)
+
+NNAAMMEE
+     BBll--iinnsseett - inset list labels
+
+DDEESSCCRRIIPPTTIIOONN
+     tag x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x
+
+     four x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x
+
+     quint x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x
+
+     indent x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x
+
+     septime x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x
+
+     achtacht x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x
+
+     neun_neun x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x
+
+     zehn__zehn x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x x x x x x x
+
+     a b
+
+     a  b
+
+     a   b
+
+OpenBSD                          July 16, 2017                         OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/inset.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/inset.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/inset.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: inset.in:42:12: WARNING: skipping -width argument: Bl -inset

Added: vendor/mandoc/dist/regress/mdoc/Bl/inset.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/inset.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/inset.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+BL-INSET(1) - General Commands Manual
+
+# NAME
+
+**Bl-inset** - inset list labels
+
+# DESCRIPTION
+
+tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+four
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+quint
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+indent
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+septime
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+achtacht
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+neun\_neun
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+zehn\_\_zehn
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+a
+b
+
+a ‌
+b
+
+a  ‌
+b
+
+OpenBSD - July 16, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/item.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/item.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/item.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+.\" $OpenBSD: item.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-ITEM 1
+.Os
+.Sh NAME
+.Nm Bl-item
+.Nd itemized lists
+.Sh DESCRIPTION
+.Bl -item
+.It
+first line
+.It ignore
+second line
+.It
+third line
+.El
+.Bl -item -compact
+.It
+first line
+.It ignore
+second line
+.It
+third line
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/item.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/item.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/item.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+BL-ITEM(1)                  General Commands Manual                 BL-ITEM(1)
+
+NNAAMMEE
+     BBll--iitteemm - itemized lists
+
+DDEESSCCRRIIPPTTIIOONN
+     first line
+
+     second line
+
+     third line
+     first line
+     second line
+     third line
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/item.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/item.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/item.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+BL-ITEM(1) - General Commands Manual
+
+# NAME
+
+**Bl-item** - itemized lists
+
+# DESCRIPTION
+
+first line
+
+second line
+
+third line
+
+first line  
+second line  
+third line
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/multitag.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/multitag.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/multitag.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,48 @@
+.\" $OpenBSD: multitag.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-MULTITAG 1
+.Os
+.Sh NAME
+.Nm Bl-multitag
+.Nd lists with multiple successive tags
+.Sh DESCRIPTION
+inset:
+.Bl -inset
+.It first
+.It second
+.It third
+some text
+.It fourth
+.It fifth
+more text
+.El
+tag:
+.Bl -tag -width Ds
+.It first
+.It second
+.It third
+some text
+.It fourth
+.It fifth
+more text
+.El
+inset compact:
+.Bl -inset -compact
+.It first
+.It second
+.It third
+some text
+.It fourth
+.It fifth
+more text
+.El
+tag compact:
+.Bl -tag -width Ds -compact
+.It first
+.It second
+.It third
+some text
+.It fourth
+.It fifth
+more text
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/multitag.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/multitag.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/multitag.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+BL-MULTITAG(1)              General Commands Manual             BL-MULTITAG(1)
+
+NNAAMMEE
+     BBll--mmuullttiittaagg - lists with multiple successive tags
+
+DDEESSCCRRIIPPTTIIOONN
+     inset:
+
+     first
+
+     second
+
+     third some text
+
+     fourth
+
+     fifth more text
+     tag:
+
+     first
+
+     second
+
+     third   some text
+
+     fourth
+
+     fifth   more text
+     inset compact:
+     first
+     second
+     third some text
+     fourth
+     fifth more text
+     tag compact:
+     first
+     second
+     third   some text
+     fourth
+     fifth   more text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/multitag.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/multitag.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/multitag.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,65 @@
+BL-MULTITAG(1) - General Commands Manual
+
+# NAME
+
+**Bl-multitag** - lists with multiple successive tags
+
+# DESCRIPTION
+
+inset:
+
+first
+
+second
+
+third
+some text
+
+fourth
+
+fifth
+more text
+
+tag:
+
+first
+
+second
+
+third
+
+> some text
+
+fourth
+
+fifth
+
+> more text
+
+inset compact:
+
+first  
+second  
+third
+some text  
+fourth  
+fifth
+more text
+
+tag compact:
+
+first
+
+second
+
+third
+
+> some text
+
+fourth
+
+fifth
+
+> more text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/multitype.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/multitype.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/multitype.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: multitype.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-MULTITYPE 1
+.Os
+.Sh NAME
+.Nm Bl-multitype
+.Nd list with multiple types
+.Sh DESCRIPTION
+.Bl -dash -bullet -offset indent
+.It
+Some text.
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/multitype.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/multitype.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/multitype.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+BL-MULTITYPE(1)             General Commands Manual            BL-MULTITYPE(1)
+
+NNAAMMEE
+     BBll--mmuullttiittyyppee - list with multiple types
+
+DDEESSCCRRIIPPTTIIOONN
+           --   Some text.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/multitype.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/multitype.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/multitype.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+BL-MULTITYPE(1) - General Commands Manual
+
+# NAME
+
+**Bl-multitype** - list with multiple types
+
+# DESCRIPTION
+
+-	Some text.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/nested.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/nested.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/nested.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,84 @@
+.\" $OpenBSD: nested.in,v 1.6 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-NESTED 1
+.Os
+.Sh NAME
+.Nm Bl-nested
+.Nd nested lists
+.Sh DESCRIPTION
+inset:
+.Bl -inset
+.It outer
+list
+.Bl -inset
+.It inner
+list
+.El
+.El
+inset compact:
+.Bl -inset -compact
+.It outer
+list
+.Bl -inset -compact
+.It inner
+list
+.El
+.El
+dash:
+.Bl -dash
+.It
+outer list
+.Bl -dash
+.It
+inner list
+.El
+.El
+dash compact:
+.Bl -dash -compact
+.It
+outer list
+.Bl -dash -compact
+.It
+inner list
+.El
+.El
+tag:
+.Bl -tag -width 4n
+.It outer tag
+outer text
+.Bl -tag -width 4n
+.It inner tag
+inner text
+.El
+outer text
+.El
+.Bl -tag -width 4n
+.It outer tag
+.Bd -ragged -compact
+outer text (display)
+.Ed
+.Bl -tag -width 4n
+.It inner tag
+inner text
+.El
+outer text
+.El
+.Bl -tag -width 4n
+.It outer tag
+.Dl outer text (one-line display)
+.Bl -tag -width 4n
+.It inner tag
+inner text
+.El
+outer text
+.El
+.Bl -tag -width 4n -offset 3n
+.It outer tag (indented 3n)
+outer text
+.Bl -tag -width 4n -offset 6n
+.It inner tag (indented 6n)
+inner text
+.El
+outer text
+.El
+final text

Added: vendor/mandoc/dist/regress/mdoc/Bl/nested.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/nested.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/nested.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,54 @@
+BL-NESTED(1)                General Commands Manual               BL-NESTED(1)
+
+NNAAMMEE
+     BBll--nneesstteedd - nested lists
+
+DDEESSCCRRIIPPTTIIOONN
+     inset:
+
+     outer list
+
+     inner list
+     inset compact:
+     outer list
+     inner list
+     dash:
+
+     --   outer list
+
+         --   inner list
+     dash compact:
+     --   outer list
+         --   inner list
+     tag:
+
+     outer tag
+           outer text
+
+           inner tag
+                 inner text
+           outer text
+
+     outer tag
+           outer text (display)
+
+           inner tag
+                 inner text
+           outer text
+
+     outer tag
+                 outer text (one-line display)
+
+           inner tag
+                 inner text
+           outer text
+
+        outer tag (indented 3n)
+              outer text
+
+                    inner tag (indented 6n)
+                          inner text
+              outer text
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/nested.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/nested.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/nested.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,81 @@
+BL-NESTED(1) - General Commands Manual
+
+# NAME
+
+**Bl-nested** - nested lists
+
+# DESCRIPTION
+
+inset:
+
+outer
+list
+
+inner
+list
+
+inset compact:
+
+outer
+list
+
+inner
+list
+
+dash:
+
+-	outer list
+
+	-	inner list
+
+dash compact:
+
+-	outer list
+
+	-	inner list
+
+tag:
+
+outer tag
+
+> outer text
+
+> inner tag
+
+> > inner text
+
+> outer text
+
+outer tag
+
+> > outer text (display)
+
+> inner tag
+
+> > inner text
+
+> outer text
+
+outer tag
+
+> > outer text (one-line display)
+
+> inner tag
+
+> > inner text
+
+> outer text
+
+outer tag (indented 3n)
+
+> outer text
+
+> inner tag (indented 6n)
+
+> > inner text
+
+> outer text
+
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/noIt.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/noIt.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/noIt.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: noIt.in,v 1.4 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-NOIT 1
+.Os
+.Sh NAME
+.Nm Bl-noIt
+.Nd list missing item macros
+.Sh DESCRIPTION
+.Bl -tag -width Ds
+Stray text.
+.Em More stray text
+.It tag
+Tagged text.
+.El
+.Bl -bullet
+Stray text.
+.Sm off
+.Em More Sy stray Em text
+.Sm on
+.It
+Bullet point.
+.El
+.Bl -dash
+Stray text only.
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BL-NOIT(1)                  General Commands Manual                 BL-NOIT(1)
+
+NNAAMMEE
+     BBll--nnooIItt - list missing item macros
+
+DDEESSCCRRIIPPTTIIOONN
+     Stray text.  _M_o_r_e _s_t_r_a_y _t_e_x_t
+
+     tag     Tagged text.
+     Stray text.  _M_o_r_essttrraayy_t_e_x_t
+
+     ++oo   Bullet point.
+     Stray text only.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+mandoc: noIt.in:10:1: WARNING: moving content out of list: text
+mandoc: noIt.in:11:2: WARNING: moving content out of list: Em
+mandoc: noIt.in:16:1: WARNING: moving content out of list: text
+mandoc: noIt.in:17:2: WARNING: moving content out of list: Sm
+mandoc: noIt.in:18:2: WARNING: moving content out of list: Em
+mandoc: noIt.in:18:10: WARNING: moving content out of list: Sy
+mandoc: noIt.in:18:19: WARNING: moving content out of list: Em
+mandoc: noIt.in:24:1: WARNING: moving content out of list: text

Added: vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/noIt.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+BL-NOIT(1) - General Commands Manual
+
+# NAME
+
+**Bl-noIt** - list missing item macros
+
+# DESCRIPTION
+
+Stray text.
+*More stray text*
+
+tag
+
+> Tagged text.
+
+Stray text.
+*More*‌**stray**‌*text*
+
+*	Bullet point.
+
+Stray text only.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/notype.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/notype.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/notype.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: notype.in,v 1.5 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-NOTYPE 1
+.Os
+.Sh NAME
+.Nm Bl-notype
+.Nd lists with late or missing types
+.Sh DESCRIPTION
+late type:
+.Bl -offset indent -bullet
+.It
+Some text.
+.El tail argument
+.Pp
+no type:
+.Bl -offset indent -width Ds
+.It
+Some text.
+.El
+.Pp
+no argument at all:
+.Bl
+.It
+Some text.
+.El
+.Pp
+final text

Added: vendor/mandoc/dist/regress/mdoc/Bl/notype.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/notype.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/notype.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+BL-NOTYPE(1)                General Commands Manual               BL-NOTYPE(1)
+
+NNAAMMEE
+     BBll--nnoottyyppee - lists with late or missing types
+
+DDEESSCCRRIIPPTTIIOONN
+     late type:
+
+           ++oo   Some text.
+
+     no type:
+
+           Some text.
+
+     no argument at all:
+
+     Some text.
+
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/notype.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/notype.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/notype.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: notype.in:13:2: ERROR: skipping all arguments: El tail argument
+mandoc: notype.in:10:2: WARNING: list type is not the first argument: Bl -offset
+mandoc: notype.in:16:2: ERROR: missing list type, using -item: Bl
+mandoc: notype.in:16:20: WARNING: skipping -width argument: Bl -item
+mandoc: notype.in:22:2: ERROR: missing list type, using -item: Bl

Added: vendor/mandoc/dist/regress/mdoc/Bl/notype.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/notype.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/notype.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+BL-NOTYPE(1) - General Commands Manual
+
+# NAME
+
+**Bl-notype** - lists with late or missing types
+
+# DESCRIPTION
+
+late type:
+
+*	Some text.
+
+no type:
+
+Some text.
+
+no argument at all:
+
+Some text.
+
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/offset.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/offset.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/offset.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,80 @@
+.\" $OpenBSD: offset.in,v 1.5 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-OFFSET 1
+.Os
+.Sh NAME
+.Nm Bl-offset
+.Nd various arguments for Bl offset
+.Sh DESCRIPTION
+.Bl -item -offset
+.It
+Bl item offset empty
+.El
+.Bl -item -offset left
+.It
+Bl item offset left
+.El
+.Bl -item -offset indent
+.It
+Bl item offset indent
+.El
+.Bl -item -offset indent-two
+.It
+Bl item offset indent-two
+.El
+.Bl -item -offset 4n
+.It
+Bl item offset 4n
+.El
+.Bl -item -offset mystring
+.It
+Bl item offset mystring
+.El
+.Bl -item -offset Ds
+.It
+Bl item offset Ds
+.El
+.Bl -item -offset 78n
+.It
+Bl item offset 78n
+.El
+.Bl -item -offset -3n
+.It
+Bl item offset -3n
+.El
+.Bl -tag -width Ds -offset
+.It tag
+Bl tag width Ds offset empty
+.El
+.Bl -tag -width Ds -offset left
+.It tag
+Bl tag width Ds offset left
+.El
+.Bl -tag -width Ds -offset indent
+.It tag
+Bl tag width Ds offset indent
+.El
+.Bl -tag -width Ds -offset indent-two
+.It tag
+Bl tag width Ds offset indent-two
+.El
+.Bl -tag -width Ds -offset 0.36i
+.It tag
+Bl tag width Ds offset 0.36i
+.El
+.Bl -tag -width Ds -offset mystring
+.It tag
+Bl tag width Ds offset mystring
+.El
+.Bl -tag -width Ds -offset Ds
+.It tag
+Bl tag width Ds offset Ds
+.El
+.Bl -tag -width Ds -offset 78n
+.It tag
+Bl tag width Ds offset 78n
+.El
+.Bl -tag -width Ds -offset -0.26i
+.It tag
+Bl tag width Ds offset -0.26i
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/offset.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/offset.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/offset.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,51 @@
+BL-OFFSET(1)                General Commands Manual               BL-OFFSET(1)
+
+NNAAMMEE
+     BBll--ooffffsseett - various arguments for Bl offset
+
+DDEESSCCRRIIPPTTIIOONN
+     Bl item offset empty
+
+         Bl item offset left
+
+           Bl item offset indent
+
+               Bl item offset indent-two
+
+         Bl item offset 4n
+
+             Bl item offset mystring
+
+           Bl item offset Ds
+
+                                                                                   Bl
+                                                                                   item
+                                                                                   offset
+                                                                                   78n
+
+  Bl item offset -3n
+
+     tag     Bl tag width Ds offset empty
+
+         tag     Bl tag width Ds offset left
+
+           tag     Bl tag width Ds offset indent
+
+               tag     Bl tag width Ds offset indent-two
+
+         tag     Bl tag width Ds offset 0.36i
+
+             tag     Bl tag width Ds offset mystring
+
+           tag     Bl tag width Ds offset Ds
+
+                                                                                   tag     Bl
+                                                                                           tag
+                                                                                           width
+                                                                                           Ds
+                                                                                           offset
+                                                                                           78n
+
+  tag     Bl tag width Ds offset -0.26i
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/offset.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/offset.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/offset.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,63 @@
+BL-OFFSET(1) - General Commands Manual
+
+# NAME
+
+**Bl-offset** - various arguments for Bl offset
+
+# DESCRIPTION
+
+Bl item offset empty
+
+Bl item offset left
+
+Bl item offset indent
+
+Bl item offset indent-two
+
+Bl item offset 4n
+
+Bl item offset mystring
+
+Bl item offset Ds
+
+Bl item offset 78n
+
+Bl item offset -3n
+
+tag
+
+> Bl tag width Ds offset empty
+
+tag
+
+> Bl tag width Ds offset left
+
+tag
+
+> Bl tag width Ds offset indent
+
+tag
+
+> Bl tag width Ds offset indent-two
+
+tag
+
+> Bl tag width Ds offset 0.36i
+
+tag
+
+> Bl tag width Ds offset mystring
+
+tag
+
+> Bl tag width Ds offset Ds
+
+tag
+
+> Bl tag width Ds offset 78n
+
+tag
+
+> Bl tag width Ds offset -0.26i
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/ohang.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/ohang.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/ohang.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+.\" $OpenBSD: ohang.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-OHANG 1
+.Os
+.Sh NAME
+.Nm Bl-ohang
+.Nd over-hanging lists
+.Sh DESCRIPTION
+.Bl -ohang
+.It first tag
+first line
+.It second tag
+second line
+.It third tag
+third line
+.El
+.Bl -ohang -compact
+.It first tag
+first line
+.It second tag
+second line
+.It third tag
+third line
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/ohang.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/ohang.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/ohang.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+BL-OHANG(1)                 General Commands Manual                BL-OHANG(1)
+
+NNAAMMEE
+     BBll--oohhaanngg - over-hanging lists
+
+DDEESSCCRRIIPPTTIIOONN
+     first tag
+     first line
+
+     second tag
+     second line
+
+     third tag
+     third line
+     first tag
+     first line
+     second tag
+     second line
+     third tag
+     third line
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/ohang.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/ohang.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/ohang.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+BL-OHANG(1) - General Commands Manual
+
+# NAME
+
+**Bl-ohang** - over-hanging lists
+
+# DESCRIPTION
+
+first tag  
+first line
+
+second tag  
+second line
+
+third tag  
+third line
+
+first tag  
+first line  
+second tag  
+second line  
+third tag  
+third line
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/secstart.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/secstart.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/secstart.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,40 @@
+.\" $OpenBSD: secstart.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-SECSTART 1
+.Os
+.Sh NAME
+.Nm Bl-secstart
+.Nd nested lists at the beginning of sections
+.Sh DESCRIPTION
+.Ss item
+.Bl -item
+.It
+.Bl -item
+.It
+text
+.El
+.El
+.Ss dash
+.Bl -dash
+.It
+.Bl -dash
+.It
+text
+.El
+.El
+.Ss inset
+.Bl -inset
+.It outer
+.Bl -inset
+.It inner
+text
+.El
+.El
+.Ss tag
+.Bl -tag -width 4n
+.It outer tag
+.Bl -tag -width 4n
+.It inner tag
+text
+.El
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/secstart.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/secstart.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/secstart.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+BL-SECSTART(1)              General Commands Manual             BL-SECSTART(1)
+
+NNAAMMEE
+     BBll--sseeccssttaarrtt - nested lists at the beginning of sections
+
+DDEESSCCRRIIPPTTIIOONN
+   iitteemm
+     text
+
+   ddaasshh
+     --
+
+         --   text
+
+   iinnsseett
+     outer
+
+     inner text
+
+   ttaagg
+     outer tag
+
+           inner tag
+                 text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/secstart.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/secstart.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/secstart.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+BL-SECSTART(1) - General Commands Manual
+
+# NAME
+
+**Bl-secstart** - nested lists at the beginning of sections
+
+# DESCRIPTION
+
+## item
+
+text
+
+## dash
+
+-	
+
+	-	text
+
+## inset
+
+outer
+
+inner
+text
+
+## tag
+
+outer tag
+
+> inner tag
+
+> > text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/tag.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/tag.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/tag.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,155 @@
+.\" $OpenBSD: tag.in,v 1.18 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-TAG 1
+.Os
+.Sh NAME
+.Nm Bl-tag
+.Nd tagged lists
+.Sh DESCRIPTION
+.Bl -tag -width -4n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width -0.26i
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width -2n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width -1n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 0n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 1n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 2n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 3n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 4n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It tag
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It four
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It quint
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 0.46i
+.It indent
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It septime
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It achtacht
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It neun neun
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It zehn_ zehn
+x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+.El
+.Bl -tag -width 5n
+.It This is a very long text contained in the tag, it is so long \
+that it overruns the line -
+and here comes the item body.
+.El
+.Bl -tag -width 100n
+.It hundred
+text text
+.El
+.Pp
+Trailing white space in the head:
+.Bl -tag -width 5n
+.It "a"
+none
+.It "a "
+one
+.It "a  "
+two
+.It "a   "
+three
+.It "a    "
+four
+.It "a     "
+five
+.It "a      "
+six
+.It " "
+white space only
+.El
+.Pp
+Non-numeric width specification:
+.Bl -tag -width xxx
+.It tag
+text
+.El
+.Bl -tag -width xxxxxxxxxx
+.It tag
+text
+.El
+.Pp
+Scaling units other than n:
+.Bl -tag -width 4m
+.It tag
+text
+.El
+.Bl -tag -width 800M
+.It tag
+text
+.El
+.Bl -tag -width 14
+.It tag
+text
+.El
+.Pp
+Default width:
+.Bl -tag
+.It tag
+text
+.It long tag
+long text
+.It Sy tag Em with markup
+text
+.El
+.Pp
+Indented list:
+.Bl -tag -offset 6n -width xxx
+.It one
+first text
+.It two
+second text
+.El
+.Pp
+Embedded paragraph:
+.Bl -tag -width Ds
+.It tag
+first paragraph
+.Pp
+second paragraph
+.El

Added: vendor/mandoc/dist/regress/mdoc/Bl/tag.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/tag.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/tag.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,134 @@
+BL-TAG(1)                   General Commands Manual                  BL-TAG(1)
+
+NNAAMMEE
+     BBll--ttaagg - tagged lists
+
+DDEESSCCRRIIPPTTIIOONN
+     tag
+   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+   x x
+
+     tag
+    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+    x x x
+
+     tag
+     x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+     x x x
+
+     tag
+      x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+      x x x x
+
+     tag
+       x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+       x x x x
+
+     tag
+        x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+        x x x x x
+
+     tag
+         x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+         x x x x x
+
+     tag  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+          x x x x x x
+
+     tag   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+           x x x x x x
+
+     tag    x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     four   x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     quint  x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     indent
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     septime
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     achtacht
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     neun neun
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     zehn_ zehn
+            x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+            x x x x x x x
+
+     This is a very long text contained in the tag, it is so long that it
+            overruns the line -
+            and here comes the item body.
+
+     hundred                                                                                               text
+                                                                                                           text
+
+     Trailing white space in the head:
+
+     a      none
+
+     a      one
+
+     a      two
+
+     a      three
+
+     a      four
+
+     a
+            five
+
+     a
+            six
+
+            white space only
+
+     Non-numeric width specification:
+
+     tag  text
+
+     tag         text
+
+     Scaling units other than n:
+
+     tag   text
+
+     tag       text
+
+     tag
+         text
+
+     Default width:
+
+     tag     text
+
+     long tag
+             long text
+
+     ttaagg _w_i_t_h _m_a_r_k_u_p
+             text
+
+     Indented list:
+
+           one  first text
+
+           two  second text
+
+     Embedded paragraph:
+
+     tag     first paragraph
+
+             second paragraph
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/tag.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/tag.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/tag.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: tag.in:132:2: WARNING: missing -width in -tag list, using 6n: Bl -tag

Added: vendor/mandoc/dist/regress/mdoc/Bl/tag.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/tag.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/tag.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,175 @@
+BL-TAG(1) - General Commands Manual
+
+# NAME
+
+**Bl-tag** - tagged lists
+
+# DESCRIPTION
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+tag
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+four
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+quint
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+indent
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+septime
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+achtacht
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+neun neun
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+zehn\_ zehn
+
+> x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
+
+This is a very long text contained in the tag, it is so long that it overruns the line -
+
+> and here comes the item body.
+
+hundred
+
+> text text
+
+Trailing white space in the head:
+
+a
+
+> none
+
+a 
+
+> one
+
+a  
+
+> two
+
+a   
+
+> three
+
+a    
+
+> four
+
+a     
+
+> five
+
+a      
+
+> six
+
+ 
+
+> white space only
+
+Non-numeric width specification:
+
+tag
+
+> text
+
+tag
+
+> text
+
+Scaling units other than n:
+
+tag
+
+> text
+
+tag
+
+> text
+
+tag
+
+> text
+
+Default width:
+
+tag
+
+> text
+
+long tag
+
+> long text
+
+**tag** *with markup*
+
+> text
+
+Indented list:
+
+one
+
+> first text
+
+two
+
+> second text
+
+Embedded paragraph:
+
+tag
+
+> first paragraph
+
+> second paragraph
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bl/unclosed.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/unclosed.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/unclosed.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: unclosed.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BL-UNCLOSED 1
+.Os
+.Sh NAME
+.Nm Bl-unclosed
+.Nd list lacking an end macro
+.Sh DESCRIPTION
+.Bl -item
+.It
+item
+.Sh SEE ALSO
+.Xr mdoc 7

Added: vendor/mandoc/dist/regress/mdoc/Bl/unclosed.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/unclosed.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/unclosed.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+BL-UNCLOSED(1)              General Commands Manual             BL-UNCLOSED(1)
+
+NNAAMMEE
+     BBll--uunncclloosseedd - list lacking an end macro
+
+DDEESSCCRRIIPPTTIIOONN
+     item
+
+SSEEEE AALLSSOO
+     mdoc(7)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bl/unclosed.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bl/unclosed.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bl/unclosed.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+BL-UNCLOSED(1) - General Commands Manual
+
+# NAME
+
+**Bl-unclosed** - list lacking an end macro
+
+# DESCRIPTION
+
+item
+
+# SEE ALSO
+
+mdoc(7)
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Brq/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Brq/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Brq/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2011/12/04 03:09:25 schwarze Exp $
+
+REGRESS_TARGETS  = empty
+LINT_TARGETS	 = empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Brq/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Brq/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Brq/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: empty.in,v 1.5 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BRQ-EMPTY 1
+.Os
+.Sh NAME
+.Nm Brq-empty
+.Nd empty implicit enclosure macros
+.Sh DESCRIPTION
+An empty
+.Brq
+and a full
+.Brq "(" user at host)
+quotation.
+And another
+.Bro "(" full) Brc one "Sy" bold .

Added: vendor/mandoc/dist/regress/mdoc/Brq/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Brq/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Brq/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+BRQ-EMPTY(1)                General Commands Manual               BRQ-EMPTY(1)
+
+NNAAMMEE
+     BBrrqq--eemmppttyy - empty implicit enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     An empty {} and a full ({user at host)} quotation.  And another ({full)} one
+     bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Brq/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Brq/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Brq/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:12:19: STYLE: no blank before trailing delimiter: Brq user at host)
+mandoc: empty.in:15:14: STYLE: no blank before trailing delimiter: Bro full)

Added: vendor/mandoc/dist/regress/mdoc/Brq/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Brq/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Brq/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+BRQ-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Brq-empty** - empty implicit enclosure macros
+
+# DESCRIPTION
+
+An empty
+{}
+and a full
+({user at host)}
+quotation.
+And another
+({full)} one **bold**.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Bx/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bx/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bx/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2011/11/17 16:28:45 schwarze Exp $
+
+REGRESS_TARGETS  = args
+LINT_TARGETS	 = args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Bx/args.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bx/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bx/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: args.in,v 1.5 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BX-ARGS 1
+.Os
+.Sh NAME
+.Nm Bx-args
+.Nd arguments to the BSD macro
+.Sh DESCRIPTION
+no arguments:
+.Bx
+.Pp
+one standard argument:
+.Bx 4.4 "."
+.Pp
+one non-standard argument:
+.Bx nett.
+.Pp
+one semi-standard argument:
+.Bx 4.1c
+.Pp
+two standard arguments:
+.Bx 4.3 reno
+.Pp
+more arguments:
+.Bx 4.3 tahoe and "Em" some additional words
+.Pp
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Bx/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bx/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bx/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+BX-ARGS(1)                  General Commands Manual                 BX-ARGS(1)
+
+NNAAMMEE
+     BBxx--aarrggss - arguments to the BSD macro
+
+DDEESSCCRRIIPPTTIIOONN
+     no arguments: BSD
+
+     one standard argument: 4.4BSD.
+
+     one non-standard argument: nett.BSD
+
+     one semi-standard argument: 4.1cBSD
+
+     two standard arguments: 4.3BSD-Reno
+
+     more arguments: 4.3BSD-Tahoe and _s_o_m_e _a_d_d_i_t_i_o_n_a_l _w_o_r_d_s
+
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Bx/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bx/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bx/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: args.in:16:9: STYLE: no blank before trailing delimiter: Bx nett.

Added: vendor/mandoc/dist/regress/mdoc/Bx/args.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Bx/args.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Bx/args.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+BX-ARGS(1) - General Commands Manual
+
+# NAME
+
+**Bx-args** - arguments to the BSD macro
+
+# DESCRIPTION
+
+no arguments:
+BSD
+
+one standard argument:
+4\.4BSD.
+
+one non-standard argument:
+nett.BSD
+
+one semi-standard argument:
+4\.1cBSD
+
+two standard arguments:
+4\.3BSD-Reno
+
+more arguments:
+4\.3BSD-Tahoe and *some additional words*
+
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cd/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.5 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = eos font noarg punct
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Cd/eos.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: eos.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CD-EOS 1
+.Os
+.Sh NAME
+.Nm Cd-eos
+.Nd end of sentence handling after the configuration directive macro
+.Sh DESCRIPTION
+Do not use
+.Cd options INSECURE .
+It is insecure.

Added: vendor/mandoc/dist/regress/mdoc/Cd/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+CD-EOS(1)                   General Commands Manual                  CD-EOS(1)
+
+NNAAMMEE
+     CCdd--eeooss - end of sentence handling after the configuration directive macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Do not use ooppttiioonnss IINNSSEECCUURREE.  It is insecure.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cd/eos.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/eos.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/eos.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+CD-EOS(1) - General Commands Manual
+
+# NAME
+
+**Cd-eos** - end of sentence handling after the configuration directive macro
+
+# DESCRIPTION
+
+Do not use
+**options INSECURE**.
+It is insecure.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cd/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CD-FONT 1
+.Os
+.Sh NAME
+.Nm Cd-font
+.Nd changing fonts inside the configuration declaration macro
+.Sh DESCRIPTION
+normal text
+.Cd bold\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Cd/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+CD-FONT(1)                  General Commands Manual                 CD-FONT(1)
+
+NNAAMMEE
+     CCdd--ffoonntt - changing fonts inside the configuration declaration macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text bboolldd_e_m_p_h_a_s_i_sbbaacckk trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cd/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+CD-FONT(1) - General Commands Manual
+
+# NAME
+
+**Cd-font** - changing fonts inside the configuration declaration macro
+
+# DESCRIPTION
+
+normal text
+**bold*emphasis*back**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cd/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CD-NOARG 1
+.Os
+.Sh NAME
+.Nm Cd-noarg
+.Nd kernel configuration directive without arguments
+.Sh DESCRIPTION
+with arguments:
+.Cd wd* at pciide?
+without arguments:
+.Cd
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+CD-NOARG(1)                 General Commands Manual                CD-NOARG(1)
+
+NNAAMMEE
+     CCdd--nnooaarrgg - kernel configuration directive without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     with arguments: wwdd** aatt ppcciiiiddee?? without arguments: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Cd

Added: vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+CD-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Cd-noarg** - kernel configuration directive without arguments
+
+# DESCRIPTION
+
+with arguments:
+**wd\* at pciide?**
+without arguments:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cd/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: punct.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CD-PUNCT 1
+.Os
+.Sh NAME
+.Nm Cd-punct
+.Nd punctuation handling by the Cd macro
+.Sh DESCRIPTION
+closing punctuation
+.Cd a )
+only one
+.Cd )
+only more than one
+.Cd ) )
+middle
+.Cd a ) z
+start
+.Cd ) z
+dot
+.Cd . z
+comma
+.Cd , z
+semicolon
+.Cd ; z
+colon
+.Cd : z
+quest
+.Cd ? z
+excl
+.Cd ! z
+paren
+.Cd ) z
+bracket
+.Cd ] z
+bar
+.Cd | m
+op paren
+.Cd ( a
+op bracket
+.Cd [ a
+.Pp
+quoted punctuation:
+.Cd a "(" b "|" c ")" d "." "Em" italic .

Added: vendor/mandoc/dist/regress/mdoc/Cd/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+CD-PUNCT(1)                 General Commands Manual                CD-PUNCT(1)
+
+NNAAMMEE
+     CCdd--ppuunncctt - punctuation handling by the Cd macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation aa) only one ) only more than one )) middle aa) zz start
+     ) zz dot . zz comma , zz semicolon ; zz colon : zz quest ? zz excl ! zz paren )
+     zz bracket ] zz bar | mm op paren (aa op bracket [aa
+
+     quoted punctuation: aa (bb | cc) dd. _i_t_a_l_i_c.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cd/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cd/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cd/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+CD-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Cd-punct** - punctuation handling by the Cd macro
+
+# DESCRIPTION
+
+closing punctuation
+**a**)
+only one
+)
+only more than one
+))
+middle
+**a**) **z**
+start
+) **z**
+dot
+. **z**
+comma
+, **z**
+semicolon
+; **z**
+colon
+: **z**
+quest
+? **z**
+excl
+! **z**
+paren
+) **z**
+bracket
+] **z**
+bar
+| **m**
+op paren
+(**a**
+op bracket
+\[**a**
+
+quoted punctuation:
+**a** (**b** | **c**) **d**. *italic*.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cm/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = basic font noarg punct
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Cm/basic.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: basic.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CM-BASIC 1
+.Os
+.Sh NAME
+.Nm Cm-basic
+.Nd basic usage of the Cm macro
+.Sh DESCRIPTION
+end of line:
+.Nm mt Fl f Ar device Cm rewind
+.Pp
+middle of line:
+.Nm ps Fl o Cm pid , Ns Cm command

Added: vendor/mandoc/dist/regress/mdoc/Cm/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+CM-BASIC(1)                 General Commands Manual                CM-BASIC(1)
+
+NNAAMMEE
+     CCmm--bbaassiicc - basic usage of the Cm macro
+
+DDEESSCCRRIIPPTTIIOONN
+     end of line: mmtt --ff _d_e_v_i_c_e rreewwiinndd
+
+     middle of line: ppss --oo ppiidd,ccoommmmaanndd
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cm/basic.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/basic.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/basic.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+CM-BASIC(1) - General Commands Manual
+
+# NAME
+
+**Cm-basic** - basic usage of the Cm macro
+
+# DESCRIPTION
+
+end of line:
+**mt** **-f** *device* **rewind**
+
+middle of line:
+**ps** **-o** **pid**,**command**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cm/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CM-FONT 1
+.Os
+.Sh NAME
+.Nm Cm-font
+.Nd changing fonts inside the command modifier macro
+.Sh DESCRIPTION
+normal text
+.Cm bold\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Cm/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+CM-FONT(1)                  General Commands Manual                 CM-FONT(1)
+
+NNAAMMEE
+     CCmm--ffoonntt - changing fonts inside the command modifier macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text bboolldd_e_m_p_h_a_s_i_sbbaacckk trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cm/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+CM-FONT(1) - General Commands Manual
+
+# NAME
+
+**Cm-font** - changing fonts inside the command modifier macro
+
+# DESCRIPTION
+
+normal text
+**bold*emphasis*back**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cm/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt CM-NOARG 1
+.Os
+.Sh NAME
+.Nm Cm-noarg
+.Nd command modifier macro without arguments
+.Sh DESCRIPTION
+end of line:
+.Nm mt Fl f Ar device Cm
+.Pp
+middle of line:
+.Nm ps Fl x Cm Fl o Cm command.

Added: vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+CM-NOARG(1)                 General Commands Manual                CM-NOARG(1)
+
+NNAAMMEE
+     CCmm--nnooaarrgg - command modifier macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     end of line: mmtt --ff _d_e_v_i_c_e
+
+     middle of line: ppss --xx --oo ccoommmmaanndd..
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: noarg.in:10:23: WARNING: skipping empty macro: Cm
+mandoc: noarg.in:13:13: WARNING: skipping empty macro: Cm
+mandoc: noarg.in:13:31: STYLE: no blank before trailing delimiter: Cm command.

Added: vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+CM-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Cm-noarg** - command modifier macro without arguments
+
+# DESCRIPTION
+
+end of line:
+**mt** **-f** *device*
+
+middle of line:
+**ps** **-x** **-o** **command.**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Cm/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: punct.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt Cm-PUNCT 1
+.Os
+.Sh NAME
+.Nm Cm-punct
+.Nd punctuation handling by the Cm macro
+.Sh DESCRIPTION
+closing punctuation
+.Cm a )
+only one
+.Cm )
+only more than one
+.Cm ) )
+middle
+.Cm a ) z
+start
+.Cm ) z
+dot
+.Cm . z
+comma
+.Cm , z
+semicolon
+.Cm ; z
+colon
+.Cm : z
+quest
+.Cm ? z
+excl
+.Cm ! z
+paren
+.Cm ) z
+bracket
+.Cm ] z
+bar
+.Cm | m
+op paren
+.Cm ( a
+op bracket
+.Cm [ a
+.Pp
+quoted punctuation:
+.Cm a "(" b "|" c ")" d "." "Em" italic .

Added: vendor/mandoc/dist/regress/mdoc/Cm/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+Cm-PUNCT(1)                 General Commands Manual                Cm-PUNCT(1)
+
+NNAAMMEE
+     CCmm--ppuunncctt - punctuation handling by the Cm macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation aa) only one ) only more than one )) middle aa) zz start
+     ) zz dot . zz comma , zz semicolon ; zz colon : zz quest ? zz excl ! zz paren )
+     zz bracket ] zz bar | mm op paren (aa op bracket [aa
+
+     quoted punctuation: aa (bb | cc) dd. _i_t_a_l_i_c.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Cm/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Cm/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Cm/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+Cm-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Cm-punct** - punctuation handling by the Cm macro
+
+# DESCRIPTION
+
+closing punctuation
+**a**)
+only one
+)
+only more than one
+))
+middle
+**a**) **z**
+start
+) **z**
+dot
+. **z**
+comma
+, **z**
+semicolon
+; **z**
+colon
+: **z**
+quest
+? **z**
+excl
+! **z**
+paren
+) **z**
+bracket
+] **z**
+bar
+| **m**
+op paren
+(**a**
+op bracket
+\[**a**
+
+quoted punctuation:
+**a** (**b** | **c**) **d**. *italic*.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/D1/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/D1/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/D1/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2015/02/06 02:04:35 schwarze Exp $
+
+REGRESS_TARGETS	 = spacing
+LINT_TARGETS	 = spacing
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/D1/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/D1/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/D1/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: spacing.in,v 1.3 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt D1-SPACING 1
+.Os
+.Sh NAME
+.Nm D1-spacing
+.Nd spacing in and around one-line displays
+.Sh DESCRIPTION
+preceding text
+.D1 spacing  in  and around one-line displays
+empty display:
+.D1
+following text

Added: vendor/mandoc/dist/regress/mdoc/D1/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/D1/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/D1/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+D1-SPACING(1)               General Commands Manual              D1-SPACING(1)
+
+NNAAMMEE
+     DD11--ssppaacciinngg - spacing in and around one-line displays
+
+DDEESSCCRRIIPPTTIIOONN
+     preceding text
+           spacing in and around one-line displays
+     empty display:
+     following text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/D1/spacing.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/D1/spacing.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/D1/spacing.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: spacing.in:12:2: WARNING: empty block: D1

Added: vendor/mandoc/dist/regress/mdoc/D1/spacing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/D1/spacing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/D1/spacing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+D1-SPACING(1) - General Commands Manual
+
+# NAME
+
+**D1-spacing** - spacing in and around one-line displays
+
+# DESCRIPTION
+
+preceding text
+
+> spacing in and around one-line displays
+
+empty display:
+
+following text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Db/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Db/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Db/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+# $OpenBSD: Makefile,v 1.1 2014/11/27 16:20:27 schwarze Exp $
+
+REGRESS_TARGETS	= args
+LINT_TARGETS	= args
+
+# mandoc -T markdown ignores .Db
+
+SKIP_MARKDOWN ?= ALL
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Db/args.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Db/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Db/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:24 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DB-ARGS 1
+.Os
+.Sh NAME
+.Nm Db-args
+.Nd obsolete debug macro
+.Sh DESCRIPTION
+no args
+.Db
+one arg
+.Db on
+two args
+.Db foo bar
+end of text

Added: vendor/mandoc/dist/regress/mdoc/Db/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Db/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Db/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DB-ARGS(1)                  General Commands Manual                 DB-ARGS(1)
+
+NNAAMMEE
+     DDbb--aarrggss - obsolete debug macro
+
+DDEESSCCRRIIPPTTIIOONN
+     no args one arg two args end of text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Db/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Db/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Db/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: args.in:10:2: WARNING: obsolete macro: Db
+mandoc: args.in:12:2: WARNING: obsolete macro: Db
+mandoc: args.in:14:2: WARNING: obsolete macro: Db

Added: vendor/mandoc/dist/regress/mdoc/Dd/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+# $OpenBSD: Makefile,v 1.2 2014/11/21 01:52:45 schwarze Exp $
+
+REGRESS_TARGETS	 = badarg dupe late long manarg noarg order
+LINT_TARGETS	 = badarg dupe late long manarg noarg order
+
+# noarg output contains the date when the file is formatted
+
+SKIP_ASCII	?= noarg
+SKIP_MARKDOWN	?= noarg
+
+# If groff finds exactly three arguments, it assumes they are month,
+# day and year without further checking.  If there are no arguments,
+# groff uses the string "Epoch".  Otherwise, it silently falls back
+# to today's date.
+# That is not at all sane behaviour, we are not going to imitate it.
+
+SKIP_GROFF	 = badarg long manarg noarg
+
+# Autodetection fails for late .Dd, so specify -mdoc explicitly.
+
+MOPTS		+= -mdoc
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Dd/badarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/badarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/badarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: badarg.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd "bad date"
+.Dt DD-BADARG 1
+.Os
+.Sh NAME
+.Nm Dd-badarg
+.Nd date cannot be parsed
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DD-BADARG(1)                General Commands Manual               DD-BADARG(1)
+
+NNAAMMEE
+     DDdd--bbaaddaarrgg - date cannot be parsed
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                            bad date                            OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badarg.in:2:2: WARNING: cannot parse date, using it verbatim: bad date
+mandoc: badarg.in:2:5: STYLE: Mdocdate missing: Dd bad date (OpenBSD)

Added: vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/badarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DD-BADARG(1) - General Commands Manual
+
+# NAME
+
+**Dd-badarg** - date cannot be parsed
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - bad date

Added: vendor/mandoc/dist/regress/mdoc/Dd/dupe.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/dupe.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/dupe.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: dupe.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd August 1, 2014
+.Dt DD-DUPE 1
+.Os
+.Dd August 3, 2014
+.Sh NAME
+.Nm Dd-dupe
+.Nd duplicate date macro
+.Sh DESCRIPTION
+initial text
+.Dd August 5, 2014
+final text

Added: vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DD-DUPE(1)                  General Commands Manual                 DD-DUPE(1)
+
+NNAAMMEE
+     DDdd--dduuppee - duplicate date macro
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text final text
+
+OpenBSD                         August 5, 2014                         OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: dupe.in:2:5: STYLE: Mdocdate missing: Dd August (OpenBSD)
+mandoc: dupe.in:5:2: ERROR: duplicate prologue macro: Dd
+mandoc: dupe.in:11:2: ERROR: duplicate prologue macro: Dd

Added: vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/dupe.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+DD-DUPE(1) - General Commands Manual
+
+# NAME
+
+**Dd-dupe** - duplicate date macro
+
+# DESCRIPTION
+
+initial text
+final text
+
+OpenBSD - August 5, 2014

Added: vendor/mandoc/dist/regress/mdoc/Dd/late.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/late.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/late.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: late.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dt DD-LATE 1
+.Os
+.Sh NAME
+.Nm Dd-late
+.Nd late date macro
+.Sh DESCRIPTION
+initial text
+.Dd August 5, 2014
+final text

Added: vendor/mandoc/dist/regress/mdoc/Dd/late.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/late.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/late.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DD-LATE(1)                  General Commands Manual                 DD-LATE(1)
+
+NNAAMMEE
+     DDdd--llaattee - late date macro
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text final text
+
+OpenBSD                         August 5, 2014                         OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dd/late.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/late.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/late.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: late.in:9:2: WARNING: late prologue macro: Dd

Added: vendor/mandoc/dist/regress/mdoc/Dd/late.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/late.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/late.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+DD-LATE(1) - General Commands Manual
+
+# NAME
+
+**Dd-late** - late date macro
+
+# DESCRIPTION
+
+initial text
+final text
+
+OpenBSD - August 5, 2014

Added: vendor/mandoc/dist/regress/mdoc/Dd/long.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/long.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/long.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: long.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd 1234567890123456789012345678901234567890123456789012345678901234567890123456789
+.Dt DD-LONG 1
+.Os
+.Sh NAME
+.Nm Dd-long
+.Nd long date string
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dd/long.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/long.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/long.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DD-LONG(1)                  General Commands Manual                 DD-LONG(1)
+
+NNAAMMEE
+     DDdd--lloonngg - long date string
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD
+1234567890123456789012345678901234567890123456789012345678901234567890123456789
+                                                                       OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dd/long.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/long.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/long.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: long.in:2:2: WARNING: cannot parse date, using it verbatim: 1234567890123456789012345678901234567890123456789012345678901234567890123456789
+mandoc: long.in:2:5: STYLE: Mdocdate missing: Dd 1234567890123456789012345678901234567890123456789012345678901234567890123456789 (OpenBSD)

Added: vendor/mandoc/dist/regress/mdoc/Dd/long.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/long.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/long.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DD-LONG(1) - General Commands Manual
+
+# NAME
+
+**Dd-long** - long date string
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - 1234567890123456789012345678901234567890123456789012345678901234567890123456789

Added: vendor/mandoc/dist/regress/mdoc/Dd/manarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/manarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/manarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: manarg.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd 2014-08-07
+.Dt DD-MANARG 1
+.Os
+.Sh NAME
+.Nm Dd-manarg
+.Nd date in traditional man format
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DD-MANARG(1)                General Commands Manual               DD-MANARG(1)
+
+NNAAMMEE
+     DDdd--mmaannaarrgg - date in traditional man format
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                           2014-08-07                           OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: manarg.in:2:2: STYLE: legacy man(7) date format: Dd 2014-08-07
+mandoc: manarg.in:2:5: STYLE: Mdocdate missing: Dd 2014-08-07 (OpenBSD)

Added: vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/manarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DD-MANARG(1) - General Commands Manual
+
+# NAME
+
+**Dd-manarg** - date in traditional man format
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - 2014-08-07

Added: vendor/mandoc/dist/regress/mdoc/Dd/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd
+.Dt DD-NOARG 1
+.Os
+.Sh NAME
+.Nm Dd-noarg
+.Nd date macro without an argument
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dd/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noarg.in:2:2: WARNING: missing date, using today's date

Added: vendor/mandoc/dist/regress/mdoc/Dd/order.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/order.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/order.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: order.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dt DD-ORDER 1
+.Dd August 5, 2014
+.Os
+.Sh NAME
+.Nm Dd-order
+.Nd date macro after title macro
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dd/order.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/order.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/order.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DD-ORDER(1)                 General Commands Manual                DD-ORDER(1)
+
+NNAAMMEE
+     DDdd--oorrddeerr - date macro after title macro
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                         August 5, 2014                         OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dd/order.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/order.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/order.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: order.in:3:2: WARNING: prologue macros out of order: Dd after Dt
+mandoc: order.in:3:5: STYLE: Mdocdate missing: Dd August (OpenBSD)

Added: vendor/mandoc/dist/regress/mdoc/Dd/order.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dd/order.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dd/order.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DD-ORDER(1) - General Commands Manual
+
+# NAME
+
+**Dd-order** - date macro after title macro
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - August 5, 2014

Added: vendor/mandoc/dist/regress/mdoc/Dl/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dl/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dl/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2015/02/06 02:04:35 schwarze Exp $
+
+REGRESS_TARGETS	 = spacing
+LINT_TARGETS	 = spacing
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Dl/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dl/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dl/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: spacing.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DL-SPACING 1
+.Os
+.Sh NAME
+.Nm Dl-spacing
+.Nd spacing in and around one-line literal displays
+.Sh DESCRIPTION
+preceding text
+.Dl spacing  in  and around one-line literal displays
+empty display:
+.Dl
+following text

Added: vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+DL-SPACING(1)               General Commands Manual              DL-SPACING(1)
+
+NNAAMMEE
+     DDll--ssppaacciinngg - spacing in and around one-line literal displays
+
+DDEESSCCRRIIPPTTIIOONN
+     preceding text
+           spacing in and around one-line literal displays
+     empty display:
+     following text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: spacing.in:12:2: WARNING: empty block: Dl

Added: vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dl/spacing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+DL-SPACING(1) - General Commands Manual
+
+# NAME
+
+**Dl-spacing** - spacing in and around one-line literal displays
+
+# DESCRIPTION
+
+preceding text
+
+	spacing in and around one-line literal displays
+
+empty display:
+
+following text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dq/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dq/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dq/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2011/12/04 03:09:25 schwarze Exp $
+
+REGRESS_TARGETS  = empty
+LINT_TARGETS	 = empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Dq/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dq/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dq/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: empty.in,v 1.5 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DQ-EMPTY 1
+.Os
+.Sh NAME
+.Nm Dq-empty
+.Nd empty implicit enclosure macros
+.Sh DESCRIPTION
+An empty
+.Dq
+and a full
+.Dq "(" user at host)
+quotation.
+And another
+.Do "(" full) Dc one "Sy" bold .

Added: vendor/mandoc/dist/regress/mdoc/Dq/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dq/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dq/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+DQ-EMPTY(1)                 General Commands Manual                DQ-EMPTY(1)
+
+NNAAMMEE
+     DDqq--eemmppttyy - empty implicit enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     An empty "" and a full ("user at host)" quotation.  And another ("full)" one
+     bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dq/empty.out_lint
===================================================================
Added: vendor/mandoc/dist/regress/mdoc/Dq/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dq/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dq/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+DQ-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Dq-empty** - empty implicit enclosure macros
+
+# DESCRIPTION
+
+An empty
+""
+and a full
+("user at host)"
+quotation.
+And another
+("full)" one **bold**.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+# $OpenBSD: Makefile,v 1.6 2015/02/16 19:02:32 schwarze Exp $
+
+REGRESS_TARGETS	 = badsec case dupe fourargs late
+REGRESS_TARGETS	+= missing noarg nobody nosec order
+LINT_TARGETS	 = badsec case dupe fourargs late
+LINT_TARGETS	+= missing noarg nobody nosec order
+
+SKIP_GROFF	 = badsec nobody
+SKIP_ASCII	 = badsec
+SKIP_MARKDOWN	?= badsec
+
+# When the section is missing from the man(7) .TH title line,
+# empty parentheses are shown in the page header.
+# When the section is missing from the mdoc(7) .Dt title line,
+# no empty parentheses are shown in the page header.
+# Hence, there is no bug-compatible translation from mdoc(7)
+# to man(7) for this case.  That's not mandoc(1)'s fault.
+
+SKIP_TMAN	 = fourargs late missing noarg nosec
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Dt/badsec.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/badsec.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/badsec.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: badsec.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DT-BADSEC foo
+.Os
+.Sh NAME
+.Nm Dt-badsec
+.Nd unknown manual section
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dt/badsec.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/badsec.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/badsec.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: badsec.in:3:15: WARNING: unknown manual section: Dt ... foo

Added: vendor/mandoc/dist/regress/mdoc/Dt/case.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/case.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/case.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: case.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt Dt-case 1
+.Os
+.Sh NAME
+.Nm Dt-case
+.Nd document title is not all caps
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dt/case.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/case.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/case.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+Dt-case(1)                  General Commands Manual                 Dt-case(1)
+
+NNAAMMEE
+     DDtt--ccaassee - document title is not all caps
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/case.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/case.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/case.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: case.in:3:6: STYLE: lower case character in document title: Dt Dt-case

Added: vendor/mandoc/dist/regress/mdoc/Dt/case.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/case.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/case.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+Dt-case(1) - General Commands Manual
+
+# NAME
+
+**Dt-case** - document title is not all caps
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/dupe.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/dupe.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/dupe.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: dupe.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DT-FIRST 2 first_arch
+.Os
+.Dt DT-DUPE 1
+.Sh NAME
+.Nm Dt-order
+.Nd duplicate prologue macro
+.Sh DESCRIPTION
+inital text
+.Dt DT-LAST 3 last_arch
+final text

Added: vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DT-DUPE(1)                  General Commands Manual                 DT-DUPE(1)
+
+NNAAMMEE
+     DDtt--oorrddeerr - duplicate prologue macro
+
+DDEESSCCRRIIPPTTIIOONN
+     inital text final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: dupe.in:5:2: ERROR: duplicate prologue macro: Dt
+mandoc: dupe.in:11:2: ERROR: skipping late title macro: Dt

Added: vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/dupe.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+DT-DUPE(1) - General Commands Manual
+
+# NAME
+
+**Dt-order** - duplicate prologue macro
+
+# DESCRIPTION
+
+inital text
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/fourargs.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/fourargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/fourargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: fourargs.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DT-FOURARGS 1 amd64 bogus
+.Os
+.Sh NAME
+.Nm Dt-fourargs
+.Nd too many arguments after the \&Dt macro
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DT-FOURARGS(1)          General Commands Manual (amd64)         DT-FOURARGS(1)
+
+NNAAMMEE
+     DDtt--ffoouurraarrggss - too many arguments after the Dt macro
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: fourargs.in:3:25: ERROR: skipping excess arguments: Dt ... bogus

Added: vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/fourargs.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DT-FOURARGS(1) - General Commands Manual (amd64)
+
+# NAME
+
+**Dt-fourargs** - too many arguments after the Dt macro
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/late.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/late.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/late.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: late.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Os
+.Sh NAME
+.Nm Dt-late
+.Nd late title macro
+.Sh DESCRIPTION
+inital text
+.Dt DT-LATE 1
+final text

Added: vendor/mandoc/dist/regress/mdoc/Dt/late.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/late.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/late.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+UNTITLED                             LOCAL                            UNTITLED
+
+NNAAMMEE
+     DDtt--llaattee - late title macro
+
+DDEESSCCRRIIPPTTIIOONN
+     inital text final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/late.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/late.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/late.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: late.in:9:2: ERROR: skipping late title macro: Dt
+mandoc: late.in: WARNING: missing manual title, using UNTITLED: EOF

Added: vendor/mandoc/dist/regress/mdoc/Dt/late.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/late.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/late.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+UNTITLED - LOCAL
+
+# NAME
+
+**Dt-late** - late title macro
+
+# DESCRIPTION
+
+inital text
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/missing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/missing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/missing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+.\" $OpenBSD: missing.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Os
+.Sh NAME
+.Nm Dt-missing
+.Nd no title macro at all
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dt/missing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/missing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/missing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+UNTITLED                             LOCAL                            UNTITLED
+
+NNAAMMEE
+     DDtt--mmiissssiinngg - no title macro at all
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/missing.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/missing.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/missing.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: missing.in: WARNING: missing manual title, using UNTITLED: EOF

Added: vendor/mandoc/dist/regress/mdoc/Dt/missing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/missing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/missing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+UNTITLED - LOCAL
+
+# NAME
+
+**Dt-missing** - no title macro at all
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt
+.Os
+.Sh NAME
+.Nm Dt-noarg
+.Nd title macro without arguments
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+UNTITLED                             LOCAL                            UNTITLED
+
+NNAAMMEE
+     DDtt--nnooaarrgg - title macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:3:2: WARNING: missing manual title, using UNTITLED: Dt
+mandoc: noarg.in:3:2: WARNING: missing manual section, using "": Dt UNTITLED

Added: vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+UNTITLED - LOCAL
+
+# NAME
+
+**Dt-noarg** - title macro without arguments
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/nobody.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nobody.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nobody.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+.\" $OpenBSD: nobody.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DT-NOBODY 1
+.Os

Added: vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+DT-NOBODY(1)                General Commands Manual               DT-NOBODY(1)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: nobody.in: WARNING: no document body

Added: vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nobody.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+DT-NOBODY(1) - General Commands Manual
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/nosec.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nosec.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nosec.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: nosec.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DT-NOSEC
+.Os
+.Sh NAME
+.Nm Dt-nosec
+.Nd title macro without manual section
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DT-NOSEC                             LOCAL                            DT-NOSEC
+
+NNAAMMEE
+     DDtt--nnoosseecc - title macro without manual section
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: nosec.in:3:2: WARNING: missing manual section, using "": Dt DT-NOSEC

Added: vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/nosec.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DT-NOSEC - LOCAL
+
+# NAME
+
+**Dt-nosec** - title macro without manual section
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dt/order.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/order.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/order.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: order.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Os
+.Dt DT-ORDER 1
+.Sh NAME
+.Nm Dt-order
+.Nd prologue macros out of order
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Dt/order.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/order.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/order.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DT-ORDER(1)                 General Commands Manual                DT-ORDER(1)
+
+NNAAMMEE
+     DDtt--oorrddeerr - prologue macros out of order
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dt/order.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/order.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/order.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: order.in:4:2: WARNING: prologue macros out of order: Dt after Os

Added: vendor/mandoc/dist/regress/mdoc/Dt/order.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dt/order.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dt/order.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DT-ORDER(1) - General Commands Manual
+
+# NAME
+
+**Dt-order** - prologue macros out of order
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dv/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS	= font noarg
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Dv/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: font.in,v 1.5 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DV-FONT 1
+.Os
+.Sh NAME
+.Nm Dv-font
+.Nd formatting of defined variables
+.Sh DESCRIPTION
+The
+.Dv BUFSIZ
+macro.
+.Pp
+And with
+.Dv some \\fIembedded\\fP string ";" "Sy" bold .

Added: vendor/mandoc/dist/regress/mdoc/Dv/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DV-FONT(1)                  General Commands Manual                 DV-FONT(1)
+
+NNAAMMEE
+     DDvv--ffoonntt - formatting of defined variables
+
+DDEESSCCRRIIPPTTIIOONN
+     The BUFSIZ macro.
+
+     And with some _e_m_b_e_d_d_e_d string; bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dv/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+DV-FONT(1) - General Commands Manual
+
+# NAME
+
+**Dv-font** - formatting of defined variables
+
+# DESCRIPTION
+
+The
+`BUFSIZ`
+macro.
+
+And with
+`some embedded string`; **bold**.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Dv/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DV-NOARG 1
+.Os
+.Sh NAME
+.Nm Dv-noarg
+.Nd defined variable macro without an argument
+.Sh DESCRIPTION
+with variable:
+.Dv NULL.
+no variable:
+.Dv
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DV-NOARG(1)                 General Commands Manual                DV-NOARG(1)
+
+NNAAMMEE
+     DDvv--nnooaarrgg - defined variable macro without an argument
+
+DDEESSCCRRIIPPTTIIOONN
+     with variable: NULL. no variable: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Dv
+mandoc: noarg.in:10:9: STYLE: no blank before trailing delimiter: Dv NULL.

Added: vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Dv/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+DV-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Dv-noarg** - defined variable macro without an argument
+
+# DESCRIPTION
+
+with variable:
+`NULL.`
+no variable:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Em/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2014/11/17 06:44:35 schwarze Exp $
+
+REGRESS_TARGETS	= font noarg punct
+LINT_TARGETS	= noarg punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Em/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EM-FONT 1
+.Os
+.Sh NAME
+.Nm Em-font
+.Nd changing fonts inside the emphasis macro
+.Sh DESCRIPTION
+normal text
+.Em emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Em/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+EM-FONT(1)                  General Commands Manual                 EM-FONT(1)
+
+NNAAMMEE
+     EEmm--ffoonntt - changing fonts inside the emphasis macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Em/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+EM-FONT(1) - General Commands Manual
+
+# NAME
+
+**Em-font** - changing fonts inside the emphasis macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Em/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EM-NOARG 1
+.Os
+.Sh NAME
+.Nm Em-noarg
+.Nd emphasis macro without arguments
+.Sh DESCRIPTION
+with argument
+.Em arg
+no argument
+.Em
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Em/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+EM-NOARG(1)                 General Commands Manual                EM-NOARG(1)
+
+NNAAMMEE
+     EEmm--nnooaarrgg - emphasis macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     with argument _a_r_g no argument end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Em/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Em

Added: vendor/mandoc/dist/regress/mdoc/Em/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+EM-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Em-noarg** - emphasis macro without arguments
+
+# DESCRIPTION
+
+with argument
+*arg*
+no argument
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Em/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,87 @@
+.\" $OpenBSD: punct.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EM-PUNCT 1
+.Os
+.Sh NAME
+.Nm Em-punct
+.Nd punctuation following an emphasis macro
+.Sh DESCRIPTION
+Leading punctuation:
+.Em ( b
+.Em "[" b
+.Em | b
+.Em . b
+.Em , b
+.Em ; b
+.Em : b
+.Em ? b
+.Em ! b
+.Em ) b
+.Em "]" b
+.Pp
+Trailing punctuation:
+.Em a (
+.Em a [
+.Em a |
+.Em a .
+.Em a ,
+.Em a ;
+.Em a :
+.Em a ?
+.Em a !
+.Em a ")"
+.Em a ]
+.Pp
+Middle punctuation:
+.Em a ( b
+.Em a [ b
+.Em a "|" b
+.Em a . b
+.Em a , b
+.Em a ; b
+.Em a ":" b
+.Em a ? b
+.Em a ! b
+.Em a ) b
+.Em a ] b
+.Pp
+Isolated punctuation:
+.Em a Em ( Em b
+.Em a Em [ Em b
+.Em a Em | Em b
+.Em a Em . Em b
+.Em a Em , Em b
+.Em a Em ; Em b
+.Em a Em : Em b
+.Em a Em ? Em b
+.Em a Em ! Em b
+.Em a Em ) Em b
+.Em a Em ] Em b
+.Pp
+Isolated trailing punctuation:
+.Em a Em (
+.Em a Em [
+.Em a Em |
+.Em a Em .
+.Em a Em ,
+.Em a Em ;
+.Em a Em :
+.Em a Em ?
+.Em a Em !
+.Em a Em )
+.Em a Em ]
+.Pp
+Multiple isolated punctuation:
+.Em a Em ( [ Em b
+.Em a Em ) ] Em b
+.Pp
+Multiple punctuation:
+.Em [ ( arg ) ] .
+.Pp
+Quoted:
+.Em "a . b Nm" "Sy" bold
+.Em ". b Nm"
+.Em "."
+.Pp
+Missing blank:
+.Em a.

Added: vendor/mandoc/dist/regress/mdoc/Em/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+EM-PUNCT(1)                 General Commands Manual                EM-PUNCT(1)
+
+NNAAMMEE
+     EEmm--ppuunncctt - punctuation following an emphasis macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Leading punctuation: (_b [_b | _b . _b , _b ; _b : _b ? _b ! _b ) _b ] _b
+
+     Trailing punctuation: _a ( _a [ _a | _a.  _a, _a; _a: _a?  _a!  _a) _a]
+
+     Middle punctuation: _a (_b _a [_b _a | _b _a. _b _a, _b _a; _b _a: _b _a? _b _a! _b _a) _b _a]
+     _b
+
+     Isolated punctuation: _a (_b _a [_b _a | _b _a . _b _a , _b _a ; _b _a : _b _a ? _b _a ! _b
+     _a ) _b _a ] _b
+
+     Isolated trailing punctuation: _a ( _a [ _a | _a .  _a , _a ; _a : _a ?  _a !  _a )
+     _a ]
+
+     Multiple isolated punctuation: _a ([_b _a )] _b
+
+     Multiple punctuation: [(_a_r_g)].
+
+     Quoted: _a _. _b _N_m bboolldd _. _b _N_m .
+
+     Missing blank: _a_.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Em/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+mandoc: punct.in:49:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:50:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:51:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:52:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:53:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:54:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:55:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:56:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:57:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:58:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:59:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:62:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:63:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:64:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:65:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:66:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:67:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:68:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:69:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:70:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:71:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:72:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:75:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:76:7: WARNING: skipping empty macro: Em
+mandoc: punct.in:84:2: WARNING: skipping empty macro: Em
+mandoc: punct.in:87:6: STYLE: no blank before trailing delimiter: Em a.

Added: vendor/mandoc/dist/regress/mdoc/Em/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Em/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Em/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,89 @@
+EM-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Em-punct** - punctuation following an emphasis macro
+
+# DESCRIPTION
+
+Leading punctuation:
+(*b*
+\[*b*
+| *b*
+. *b*
+, *b*
+; *b*
+: *b*
+? *b*
+! *b*
+) *b*
+] *b*
+
+Trailing punctuation:
+*a* (
+*a* \[
+*a* |
+*a*.
+*a*,
+*a*;
+*a*:
+*a*?
+*a*!
+*a*)
+*a*]
+
+Middle punctuation:
+*a* (*b*
+*a* \[*b*
+*a* | *b*
+*a*. *b*
+*a*, *b*
+*a*; *b*
+*a*: *b*
+*a*? *b*
+*a*! *b*
+*a*) *b*
+*a*] *b*
+
+Isolated punctuation:
+*a* (*b*
+*a* \[*b*
+*a* | *b*
+*a* . *b*
+*a* , *b*
+*a* ; *b*
+*a* : *b*
+*a* ? *b*
+*a* ! *b*
+*a* ) *b*
+*a* ] *b*
+
+Isolated trailing punctuation:
+*a* (
+*a* \[
+*a* |
+*a* .
+*a* ,
+*a* ;
+*a* :
+*a* ?
+*a* !
+*a* )
+*a* ]
+
+Multiple isolated punctuation:
+*a* (\[*b*
+*a* )] *b*
+
+Multiple punctuation:
+\[(*arg*)].
+
+Quoted:
+*a . b Nm* **bold**
+*. b Nm*
+.
+
+Missing blank:
+*a.*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Eo/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+# $OpenBSD: Makefile,v 1.4 2015/02/11 14:14:53 schwarze Exp $
+
+REGRESS_TARGETS	 = break empty obsolete unclosed
+LINT_TARGETS	 = break obsolete unclosed
+
+# groff-1.22.3 defect:
+# - When .Ec is missing, groff prints no page footer.
+
+SKIP_GROFF	 = unclosed
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Eo/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,69 @@
+.\" $OpenBSD: break.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EO-BREAK 1
+.Os
+.Sh NAME
+.Nm Eo-break
+.Nd breaking a custom enclosure block
+.Sh DESCRIPTION
+break
+.Eo <<
+eo
+.Bo
+bo
+ec
+.Ec >>
+bc
+.Bc
+no closing
+.Eo <<
+eo
+.Bo
+bo
+ec
+.Ec
+bc
+.Bc
+no content
+.Eo <<
+.Bo
+.Ec >>
+bc
+.Bc
+opening only
+.Eo <<
+.Bo
+.Ec
+bc
+.Bc
+broken
+.Bo
+bo
+.Eo <<
+eo
+bc
+.Bc
+ec
+.Ec >>
+no content
+.Bo
+bo
+.Eo <<
+.Bc
+.Ec >>
+no opening
+.Bo
+bo
+.Eo
+eo
+bc
+.Bc
+ec
+.Ec >>
+closing only
+.Bo
+bo
+.Eo
+.Bc
+.Ec >>
+final text

Added: vendor/mandoc/dist/regress/mdoc/Eo/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+EO-BREAK(1)                 General Commands Manual                EO-BREAK(1)
+
+NNAAMMEE
+     EEoo--bbrreeaakk - breaking a custom enclosure block
+
+DDEESSCCRRIIPPTTIIOONN
+     break <<eo [bo ec>> bc] no closing <<eo [bo ec bc] no content <<[>> bc]
+     opening only <<[ bc] broken [bo <<eo bc] ec>> no content [bo <<]>> no
+     opening [bo eo bc] ec>> closing only [bo ]>> final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Eo/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+mandoc: break.in:15:2: WARNING: blocks badly nested: Eo breaks Bo
+mandoc: break.in:24:2: WARNING: blocks badly nested: Eo breaks Bo
+mandoc: break.in:30:2: WARNING: blocks badly nested: Eo breaks Bo
+mandoc: break.in:36:2: WARNING: blocks badly nested: Eo breaks Bo
+mandoc: break.in:45:2: WARNING: blocks badly nested: Bo breaks Eo
+mandoc: break.in:52:2: WARNING: blocks badly nested: Bo breaks Eo
+mandoc: break.in:60:2: WARNING: blocks badly nested: Bo breaks Eo
+mandoc: break.in:67:2: WARNING: blocks badly nested: Bo breaks Eo

Added: vendor/mandoc/dist/regress/mdoc/Eo/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+EO-BREAK(1) - General Commands Manual
+
+# NAME
+
+**Eo-break** - breaking a custom enclosure block
+
+# DESCRIPTION
+
+break
+<<eo
+\[bo
+ec>>
+bc]
+no closing
+<<eo
+\[bo
+ec
+bc]
+no content
+<<\[>>
+bc]
+opening only
+<<\[
+bc]
+broken
+\[bo
+<<eo
+bc]
+ec>>
+no content
+\[bo
+<<]>>
+no opening
+\[bo
+eo
+bc]
+ec>>
+closing only
+\[bo
+]>>
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Eo/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,52 @@
+.\" $OpenBSD: empty.in,v 1.5 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EO-EMPTY 1
+.Os
+.Sh NAME
+.Nm Eo-empty
+.Nd empty implicit enclosure macros
+.Sh DESCRIPTION
+completely empty
+.Eo
+.Ec
+closing only
+.Eo
+.Ec >>
+content only
+.Eo
+text
+.Ec
+opening only
+.Eo <<
+.Ec
+no opening
+.Eo
+text
+.Ec >>
+no content
+.Eo <<
+.Ec >>
+no closing
+.Eo <<
+text
+.Ec
+all
+.Eo <<
+text
+.Ec >> "Sy" bold
+completely empty
+.No prefix Ns Eo
+.Ec
+closing only
+.No prefix Ns Eo
+.Ec >>
+no opening
+.No prefix Ns Eo
+text
+.Ec >>
+no closing
+.Eo <<
+.No prefix Ns Ec
+stray closing
+.Ec >>
+end of file

Added: vendor/mandoc/dist/regress/mdoc/Eo/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+EO-EMPTY(1)                 General Commands Manual                EO-EMPTY(1)
+
+NNAAMMEE
+     EEoo--eemmppttyy - empty implicit enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     completely empty  closing only >> content only text opening only << no
+     opening text>> no content <<>> no closing <<text all <<text>> bboolldd
+     completely empty prefix closing only prefix>> no opening prefixtext>> no
+     closing <<prefix stray closing
+     >> end of file
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Eo/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+EO-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Eo-empty** - empty implicit enclosure macros
+
+# DESCRIPTION
+
+completely empty
+closing only
+>>
+content only
+text
+opening only
+<<
+no opening
+text>>
+no content
+<<>>
+no closing
+<<text
+all
+<<text>> **bold**
+completely empty
+prefixclosing only
+prefix>>
+no opening
+prefixtext>>
+no closing
+<<prefix
+stray closing  
+>>
+end of file
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Eo/obsolete.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/obsolete.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/obsolete.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: obsolete.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EO-OBSOLETE 1
+.Os
+.Sh NAME
+.Nm Eo-obsolete
+.Nd obsolete enclosure macros
+.Sh DESCRIPTION
+.En no prior \&Es
+.Pp
+.Es << >> surplus
+initial text
+.En enclosed words with Fl flags
+middle text
+.En "(" more enclosed words
+final text
+.Pp
+.Es
+initial text
+.En after empty \&Es
+final text

Added: vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+EO-OBSOLETE(1)              General Commands Manual             EO-OBSOLETE(1)
+
+NNAAMMEE
+     EEoo--oobbssoolleettee - obsolete enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     no prior Es
+
+     surplus initial text <<enclosed words with --ffllaaggss>> middle text (<<more
+     enclosed words>> final text
+
+     initial text after empty Es final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+mandoc: obsolete.in:9:2: WARNING: obsolete macro: En
+mandoc: obsolete.in:11:2: WARNING: obsolete macro: Es
+mandoc: obsolete.in:13:2: WARNING: obsolete macro: En
+mandoc: obsolete.in:15:2: WARNING: obsolete macro: En
+mandoc: obsolete.in:18:2: WARNING: obsolete macro: Es
+mandoc: obsolete.in:20:2: WARNING: obsolete macro: En

Added: vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/obsolete.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+EO-OBSOLETE(1) - General Commands Manual
+
+# NAME
+
+**Eo-obsolete** - obsolete enclosure macros
+
+# DESCRIPTION
+
+no prior Es
+
+surplus
+initial text
+<<enclosed words with **-flags**>>
+middle text
+(<<more enclosed words>>
+final text
+
+initial text
+after empty Es
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Eo/unclosed.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/unclosed.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/unclosed.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: unclosed.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EO-UNCLOSED 1
+.Os
+.Sh NAME
+.Nm Eo-unclosed
+.Nd unclosed custom enclosure block
+.Sh DESCRIPTION
+before block
+.Eo <<

Added: vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+EO-UNCLOSED(1)              General Commands Manual             EO-UNCLOSED(1)
+
+NNAAMMEE
+     EEoo--uunncclloosseedd - unclosed custom enclosure block
+
+DDEESSCCRRIIPPTTIIOONN
+     before block <<
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: unclosed.in:10:2: ERROR: appending missing end of block: Eo

Added: vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Eo/unclosed.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+EO-UNCLOSED(1) - General Commands Manual
+
+# NAME
+
+**Eo-unclosed** - unclosed custom enclosure block
+
+# DESCRIPTION
+
+before block
+<<
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Er/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = noarg font
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Er/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ER-FONT 1
+.Os
+.Sh NAME
+.Nm Er-font
+.Nd changing fonts inside the error code macro
+.Sh DESCRIPTION
+normal text
+.Er EFONT\\fIemphasis\\fPEBACK
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Er/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+ER-FONT(1)                  General Commands Manual                 ER-FONT(1)
+
+NNAAMMEE
+     EErr--ffoonntt - changing fonts inside the error code macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text EFONT_e_m_p_h_a_s_i_sEBACK trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Er/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+ER-FONT(1) - General Commands Manual
+
+# NAME
+
+**Er-font** - changing fonts inside the error code macro
+
+# DESCRIPTION
+
+normal text
+`EFONTemphasisEBACK`
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Er/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: noarg.in,v 1.5 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ER-NOARG 1
+.Os
+.Sh NAME
+.Nm Er-noarg
+.Nd error constant macro without an argument
+.Sh DESCRIPTION
+with error:
+.Er ENOENT ";" "Sy" bold ;
+.Er EIO.
+no error:
+.Er
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Er/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+ER-NOARG(1)                 General Commands Manual                ER-NOARG(1)
+
+NNAAMMEE
+     EErr--nnooaarrgg - error constant macro without an argument
+
+DDEESSCCRRIIPPTTIIOONN
+     with error: ENOENT; bboolldd; EIO. no error: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Er/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:13:2: WARNING: skipping empty macro: Er
+mandoc: noarg.in:11:8: STYLE: no blank before trailing delimiter: Er EIO.

Added: vendor/mandoc/dist/regress/mdoc/Er/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Er/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Er/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+ER-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Er-noarg** - error constant macro without an argument
+
+# DESCRIPTION
+
+with error:
+`ENOENT`; **bold**;
+`EIO.`
+no error:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ev/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS	= font noarg
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ev/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: font.in,v 1.5 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EV-FONT 1
+.Os
+.Sh NAME
+.Nm Ev-font
+.Nd formatting of environment variables
+.Sh DESCRIPTION
+The
+.Ev PATH
+variable.
+.Pp
+And with
+.Ev some \\fIembedded\\fP string ";" "Sy" bold.

Added: vendor/mandoc/dist/regress/mdoc/Ev/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+EV-FONT(1)                  General Commands Manual                 EV-FONT(1)
+
+NNAAMMEE
+     EEvv--ffoonntt - formatting of environment variables
+
+DDEESSCCRRIIPPTTIIOONN
+     The PATH variable.
+
+     And with some _e_m_b_e_d_d_e_d string; bboolldd..
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ev/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+EV-FONT(1) - General Commands Manual
+
+# NAME
+
+**Ev-font** - formatting of environment variables
+
+# DESCRIPTION
+
+The
+`PATH`
+variable.
+
+And with
+`some embedded string`; **bold.**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ev/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EV-NOARG 1
+.Os
+.Sh NAME
+.Nm Ev-noarg
+.Nd environment variable macro without an argument
+.Sh DESCRIPTION
+with variable:
+.Ev HOME.
+no variable:
+.Ev
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+EV-NOARG(1)                 General Commands Manual                EV-NOARG(1)
+
+NNAAMMEE
+     EEvv--nnooaarrgg - environment variable macro without an argument
+
+DDEESSCCRRIIPPTTIIOONN
+     with variable: HOME. no variable: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Ev
+mandoc: noarg.in:10:9: STYLE: no blank before trailing delimiter: Ev HOME.

Added: vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ev/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+EV-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Ev-noarg** - environment variable macro without an argument
+
+# DESCRIPTION
+
+with variable:
+`HOME.`
+no variable:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ex/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+# $OpenBSD: Makefile,v 1.1 2014/08/14 02:00:53 schwarze Exp $
+
+REGRESS_TARGETS	 = args noname nostd
+LINT_TARGETS	 = noname nostd
+
+# groff-1.22.2 defect:
+# - .Ex without -std produces no output
+
+SKIP_GROFF	 = nostd
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ex/args.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EX-ARGS 1
+.Os
+.Sh NAME
+.Nm Ex-args
+.Nd arguments to the exit value macro
+.Sh EXIT STATUS
+no arguments:
+.Ex -std
+.Pp
+one argument:
+.Ex -std one
+.Pp
+two arguments:
+.Ex -std one two

Added: vendor/mandoc/dist/regress/mdoc/Ex/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+EX-ARGS(1)                  General Commands Manual                 EX-ARGS(1)
+
+NNAAMMEE
+     EExx--aarrggss - arguments to the exit value macro
+
+EEXXIITT SSTTAATTUUSS
+     no arguments:
+     The EExx--aarrggss utility exits 0 on success, and >0 if an error occurs.
+
+     one argument:
+     The oonnee utility exits 0 on success, and >0 if an error occurs.
+
+     two arguments:
+     The oonnee and ttwwoo utilities exit 0 on success, and >0 if an error occurs.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ex/args.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/args.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/args.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+EX-ARGS(1) - General Commands Manual
+
+# NAME
+
+**Ex-args** - arguments to the exit value macro
+
+# EXIT STATUS
+
+no arguments:
+The **Ex-args** utility exits 0 on success, and >0 if an error occurs.
+
+one argument:
+The **one** utility exits 0 on success, and >0 if an error occurs.
+
+two arguments:
+The **one** and **two** utilities exit 0 on success, and >0 if an error occurs.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ex/noname.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/noname.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/noname.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: noname.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EX-NONAME 1
+.Os
+.Sh NAME
+.Nm
+.Nd exit value macro without an available name
+.Sh EXIT STATUS
+no arguments:
+.Ex -std
+.Pp
+one argument:
+.Ex -std one
+.Pp
+two arguments:
+.Ex -std one two

Added: vendor/mandoc/dist/regress/mdoc/Ex/noname.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/noname.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/noname.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+EX-NONAME(1)                General Commands Manual               EX-NONAME(1)
+
+NNAAMMEE
+     - exit value macro without an available name
+
+EEXXIITT SSTTAATTUUSS
+     no arguments:
+     The utility exits 0 on success, and >0 if an error occurs.
+
+     one argument:
+     The oonnee utility exits 0 on success, and >0 if an error occurs.
+
+     two arguments:
+     The oonnee and ttwwoo utilities exit 0 on success, and >0 if an error occurs.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ex/noname.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/noname.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/noname.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noname.in:6:2: ERROR: missing manual name, using "": Nm
+mandoc: noname.in:10:2: WARNING: missing utility name, using "": Ex

Added: vendor/mandoc/dist/regress/mdoc/Ex/noname.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/noname.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/noname.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+EX-NONAME(1) - General Commands Manual
+
+# NAME
+
+**‌** - exit value macro without an available name
+
+# EXIT STATUS
+
+no arguments:
+The utility exits 0 on success, and >0 if an error occurs.
+
+one argument:
+The **one** utility exits 0 on success, and >0 if an error occurs.
+
+two arguments:
+The **one** and **two** utilities exit 0 on success, and >0 if an error occurs.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ex/nostd.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/nostd.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/nostd.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: nostd.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt EX-NOSTD 1
+.Os
+.Sh NAME
+.Nm Ex-nostd
+.Nd exit value macros without -std arguments
+.Sh EXIT STATUS
+no arguments:
+.Ex
+.Pp
+one argument:
+.Ex one
+.Pp
+two arguments:
+.Ex one two

Added: vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+EX-NOSTD(1)                 General Commands Manual                EX-NOSTD(1)
+
+NNAAMMEE
+     EExx--nnoossttdd - exit value macros without -std arguments
+
+EEXXIITT SSTTAATTUUSS
+     no arguments:
+     The EExx--nnoossttdd utility exits 0 on success, and >0 if an error occurs.
+
+     one argument:
+     The oonnee utility exits 0 on success, and >0 if an error occurs.
+
+     two arguments:
+     The oonnee and ttwwoo utilities exit 0 on success, and >0 if an error occurs.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: nostd.in:10:2: WARNING: missing -std argument, adding it: Ex
+mandoc: nostd.in:13:2: WARNING: missing -std argument, adding it: Ex
+mandoc: nostd.in:16:2: WARNING: missing -std argument, adding it: Ex

Added: vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ex/nostd.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+EX-NOSTD(1) - General Commands Manual
+
+# NAME
+
+**Ex-nostd** - exit value macros without -std arguments
+
+# EXIT STATUS
+
+no arguments:
+The **Ex-nostd** utility exits 0 on success, and >0 if an error occurs.
+
+one argument:
+The **one** utility exits 0 on success, and >0 if an error occurs.
+
+two arguments:
+The **one** and **two** utilities exit 0 on success, and >0 if an error occurs.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fd/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.3 2015/02/06 03:31:11 schwarze Exp $
+
+REGRESS_TARGETS	 = break empty eos font
+LINT_TARGETS	 = empty
+SKIP_TMAN	 = eos
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Fd/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FD-BREAK 2
+.Os
+.Sh NAME
+.Nm Fd-break
+.Nd line break before old-style header include file
+.Sh SYNOPSIS
+.Fd #include <fcntl.h>
+.Ft int
+.Fn open "const char *path" "int flags" "mode_t mode"
+.Fd #include <sys/types.h>
+.Fd #include <unistd.h>
+.Ft int
+.Fn dup "int oldd"
+.Ft ssize_t
+.Fn write "int d" "const void *buf" "size_t nbytes"
+.Sh DESCRIPTION
+.Fd #include <fcntl.h>
+.Ft int
+.Fn open "const char *path" "int flags" "mode_t mode"
+.Fd #include <sys/types.h>
+.Fd #include <unistd.h>
+.Ft int
+.Fn dup "int oldd"
+.Ft ssize_t
+.Fn write "int d" "const void *buf" "size_t nbytes"

Added: vendor/mandoc/dist/regress/mdoc/Fd/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+FD-BREAK(2)                   System Calls Manual                  FD-BREAK(2)
+
+NNAAMMEE
+     FFdd--bbrreeaakk - line break before old-style header include file
+
+SSYYNNOOPPSSIISS
+     ##iinncclluuddee <<ffccnnttll..hh>>
+
+     _i_n_t
+     ooppeenn(_c_o_n_s_t _c_h_a_r _*_p_a_t_h, _i_n_t _f_l_a_g_s, _m_o_d_e___t _m_o_d_e);
+
+     ##iinncclluuddee <<ssyyss//ttyyppeess..hh>>
+     ##iinncclluuddee <<uunniissttdd..hh>>
+
+     _i_n_t
+     dduupp(_i_n_t _o_l_d_d);
+
+     _s_s_i_z_e___t
+     wwrriittee(_i_n_t _d, _c_o_n_s_t _v_o_i_d _*_b_u_f, _s_i_z_e___t _n_b_y_t_e_s);
+
+DDEESSCCRRIIPPTTIIOONN
+     ##iinncclluuddee <<ffccnnttll..hh>>
+     _i_n_t ooppeenn(_c_o_n_s_t _c_h_a_r _*_p_a_t_h, _i_n_t _f_l_a_g_s, _m_o_d_e___t _m_o_d_e) ##iinncclluuddee <<ssyyss//ttyyppeess..hh>>
+     ##iinncclluuddee <<uunniissttdd..hh>>
+     _i_n_t dduupp(_i_n_t _o_l_d_d) _s_s_i_z_e___t wwrriittee(_i_n_t _d, _c_o_n_s_t _v_o_i_d _*_b_u_f, _s_i_z_e___t _n_b_y_t_e_s)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fd/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+FD-BREAK(2) - System Calls Manual
+
+# NAME
+
+**Fd-break** - line break before old-style header include file
+
+# SYNOPSIS
+
+**#include <fcntl.h>**
+
+*int*  
+**open**(*const char \*path*, *int flags*, *mode\_t mode*);
+
+**#include <sys/types.h>**  
+**#include <unistd.h>**
+
+*int*  
+**dup**(*int oldd*);
+
+*ssize\_t*  
+**write**(*int d*, *const void \*buf*, *size\_t nbytes*);
+
+# DESCRIPTION
+
+**#include <fcntl.h>**  
+*int*
+**open**(*const char \*path*, *int flags*, *mode\_t mode*)
+**#include <sys/types.h>**  
+**#include <unistd.h>**  
+*int*
+**dup**(*int oldd*)
+*ssize\_t*
+**write**(*int d*, *const void \*buf*, *size\_t nbytes*)
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fd/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FD-EMPTY 1
+.Os
+.Sh NAME
+.Nm Fd-empty
+.Nd empty preprocessor directive macros
+.Sh SYNOPSIS
+.In sys/types.h
+.Fd
+.In stdlib.h
+.Sh DESCRIPTION
+leading text
+.Fd
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Fd/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FD-EMPTY(1)                 General Commands Manual                FD-EMPTY(1)
+
+NNAAMMEE
+     FFdd--eemmppttyy - empty preprocessor directive macros
+
+SSYYNNOOPPSSIISS
+     ##iinncclluuddee <<ssyyss//ttyyppeess..hh>>
+     ##iinncclluuddee <<ssttddlliibb..hh>>
+
+DDEESSCCRRIIPPTTIIOONN
+     leading text trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fd/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:10:2: WARNING: skipping empty macro: Fd
+mandoc: empty.in:14:2: WARNING: skipping empty macro: Fd

Added: vendor/mandoc/dist/regress/mdoc/Fd/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+FD-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Fd-empty** - empty preprocessor directive macros
+
+# SYNOPSIS
+
+**#include <sys/types.h>**  
+**#include <stdlib.h>**
+
+# DESCRIPTION
+
+leading text
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fd/eos.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: eos.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FD-EOS 1
+.Os
+.Sh NAME
+.Nm Fd-eos
+.Nd end of sentence handling after the legacy include macro
+.Sh DESCRIPTION
+Let's use
+.Fd string.h .
+And then something else.

Added: vendor/mandoc/dist/regress/mdoc/Fd/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+FD-EOS(1)                   General Commands Manual                  FD-EOS(1)
+
+NNAAMMEE
+     FFdd--eeooss - end of sentence handling after the legacy include macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Let's use ssttrriinngg..hh ..
+     And then something else.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fd/eos.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/eos.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/eos.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FD-EOS(1) - General Commands Manual
+
+# NAME
+
+**Fd-eos** - end of sentence handling after the legacy include macro
+
+# DESCRIPTION
+
+Let's use
+**string.h .**  
+And then something else.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fd/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FD-FONT 2
+.Os
+.Sh NAME
+.Nm Fd-font
+.Nd changing the font inside the old-style include macro
+.Sh DESCRIPTION
+normal text
+.Fd prefix\\fIheader\\fPsuffix
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Fd/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+FD-FONT(2)                    System Calls Manual                   FD-FONT(2)
+
+NNAAMMEE
+     FFdd--ffoonntt - changing the font inside the old-style include macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text pprreeffiixx_h_e_a_d_e_rssuuffffiixx
+     trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fd/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fd/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fd/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FD-FONT(2) - System Calls Manual
+
+# NAME
+
+**Fd-font** - changing the font inside the old-style include macro
+
+# DESCRIPTION
+
+normal text
+**prefix*header*suffix**  
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fl/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.8 2014/08/21 12:56:24 schwarze Exp $
+
+REGRESS_TARGETS = noarg multiarg parsed punct font
+LINT_TARGETS	= punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Fl/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FL-FONT 1
+.Os
+.Sh NAME
+.Nm Fl-font
+.Nd changing fonts inside the flag macro
+.Sh DESCRIPTION
+normal text
+.Fl bold\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Fl/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+FL-FONT(1)                  General Commands Manual                 FL-FONT(1)
+
+NNAAMMEE
+     FFll--ffoonntt - changing fonts inside the flag macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text --bboolldd_e_m_p_h_a_s_i_sbbaacckk trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fl/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FL-FONT(1) - General Commands Manual
+
+# NAME
+
+**Fl-font** - changing fonts inside the flag macro
+
+# DESCRIPTION
+
+normal text
+**-bold*emphasis*back**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fl/multiarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/multiarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/multiarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: multiarg.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FL-MULTIARG 1
+.Os
+.Sh NAME
+.Nm Fl-multiarg
+.Nd multiple arguments to a Fl macro
+.Sh DESCRIPTION
+Each group of flags in
+.Fl a b c def
+gets its own dash.
+.Pp
+Punctuation characters like in
+.Op Fl a | b
+get no dash.

Added: vendor/mandoc/dist/regress/mdoc/Fl/multiarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/multiarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/multiarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+FL-MULTIARG(1)              General Commands Manual             FL-MULTIARG(1)
+
+NNAAMMEE
+     FFll--mmuullttiiaarrgg - multiple arguments to a Fl macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Each group of flags in --aa --bb --cc --ddeeff gets its own dash.
+
+     Punctuation characters like in [--aa | --bb] get no dash.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fl/multiarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/multiarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/multiarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+FL-MULTIARG(1) - General Commands Manual
+
+# NAME
+
+**Fl-multiarg** - multiple arguments to a Fl macro
+
+# DESCRIPTION
+
+Each group of flags in
+**-a** **-b** **-c** **-def**
+gets its own dash.
+
+Punctuation characters like in
+\[**-a** | **-b**]
+get no dash.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fl/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: noarg.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FL-NOARG 1
+.Os
+.Sh NAME
+.Nm Fl-noarg
+.Nd Fl macro without arguments
+.Sh DESCRIPTION
+Without an argument, it yields
+.Fl
+a dash.
+.Pp
+This is true even before middle
+.Fl | and
+trailing punctuation
+.Fl .
+.Pp
+Following macros
+.Fl Op flag
+follow without white space.

Added: vendor/mandoc/dist/regress/mdoc/Fl/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FL-NOARG(1)                 General Commands Manual                FL-NOARG(1)
+
+NNAAMMEE
+     FFll--nnooaarrgg - Fl macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     Without an argument, it yields -- a dash.
+
+     This is true even before middle -- | --aanndd trailing punctuation --.
+
+     Following macros --[flag] follow without white space.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fl/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+FL-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Fl-noarg** - Fl macro without arguments
+
+# DESCRIPTION
+
+Without an argument, it yields
+**-**
+a dash.
+
+This is true even before middle
+**-** | **-and**
+trailing punctuation
+**-**.
+
+Following macros
+**-**\[flag]
+follow without white space.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fl/parsed.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/parsed.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/parsed.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: parsed.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FL-PARSED 1
+.Os
+.Sh NAME
+.Nm Fl-parsed
+.Nd is the Fl macro parsed?
+.Sh DESCRIPTION
+.Op Fl Ux
+.Pp
+.Op Ux
+.Pp
+.Op Fl Cm x
+.Pp
+.Fl W all
+versus
+.Fl W Ns Cm all
+.Pp
+.Fl Cm help

Added: vendor/mandoc/dist/regress/mdoc/Fl/parsed.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/parsed.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/parsed.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+FL-PARSED(1)                General Commands Manual               FL-PARSED(1)
+
+NNAAMMEE
+     FFll--ppaarrsseedd - is the Fl macro parsed?
+
+DDEESSCCRRIIPPTTIIOONN
+     [--UNIX]
+
+     [UNIX]
+
+     [--xx]
+
+     --WW --aallll versus --WWaallll
+
+     --hheellpp
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fl/parsed.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/parsed.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/parsed.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+FL-PARSED(1) - General Commands Manual
+
+# NAME
+
+**Fl-parsed** - is the Fl macro parsed?
+
+# DESCRIPTION
+
+\[**-**UNIX]
+
+\[UNIX]
+
+\[**-**‌**x**]
+
+**-W** **-all**
+versus
+**-W**‌**all**
+
+**-**‌**help**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fl/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+.\" $OpenBSD: punct.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FL-PUNCT 1
+.Os
+.Sh NAME
+.Nm Fl-punct
+.Nd punctuation handling by the Fl macro
+.Sh DESCRIPTION
+closing punctuation
+.Fl a )
+only one
+.Fl )
+only more than one
+.Fl ) )
+middle
+.Fl a ) z
+start
+.Fl ) z
+dot
+.Fl . z
+comma
+.Fl , z
+semicolon
+.Fl ; z
+colon
+.Fl : z
+quest
+.Fl ? z
+excl
+.Fl ! z
+paren
+.Fl ) z
+bracket
+.Fl ] z
+bar
+.Fl | m
+op paren
+.Fl ( a
+op bracket
+.Fl [ a
+.Pp
+quoted punctuation:
+.Fl a "(" b "|" c ")" d "," "Em" italic .
+.Pp
+trailing delimiter:
+.Fl a.

Added: vendor/mandoc/dist/regress/mdoc/Fl/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+FL-PUNCT(1)                 General Commands Manual                FL-PUNCT(1)
+
+NNAAMMEE
+     FFll--ppuunncctt - punctuation handling by the Fl macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation --aa) only one --) only more than one --)) middle --aa) --zz
+     start --) --zz dot --. --zz comma --, --zz semicolon --; --zz colon --: --zz quest --? --zz
+     excl --! --zz paren --) --zz bracket --] --zz bar -- | --mm op paren (--aa op bracket
+     [--aa
+
+     quoted punctuation: --aa (--bb | --cc) --dd, _i_t_a_l_i_c.
+
+     trailing delimiter: --aa..
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fl/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: punct.in:46:6: STYLE: no blank before trailing delimiter: Fl a.

Added: vendor/mandoc/dist/regress/mdoc/Fl/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fl/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fl/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,48 @@
+FL-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Fl-punct** - punctuation handling by the Fl macro
+
+# DESCRIPTION
+
+closing punctuation
+**-a**)
+only one
+**-**)
+only more than one
+**-**))
+middle
+**-a**) **-z**
+start
+**-**) **-z**
+dot
+**-**. **-z**
+comma
+**-**, **-z**
+semicolon
+**-**; **-z**
+colon
+**-**: **-z**
+quest
+**-**? **-z**
+excl
+**-**! **-z**
+paren
+**-**) **-z**
+bracket
+**-**] **-z**
+bar
+**-** | **-m**
+op paren
+(**-a**
+op bracket
+\[**-a**
+
+quoted punctuation:
+**-a** (**-b** | **-c**) **-d**, *italic*.
+
+trailing delimiter:
+**-a.**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+# $OpenBSD: Makefile,v 1.13 2015/02/16 11:39:34 schwarze Exp $
+
+REGRESS_TARGETS	 = basic break eos font noarg nohead
+REGRESS_TARGETS += obsolete punct section warn
+LINT_TARGETS	 = noarg nohead obsolete punct warn
+
+# groff-1.22.3 defects:
+# - .Fo without an argument prints unbalanced parentheses
+# - .nr nS is ignored
+
+SKIP_GROFF	 = nohead section
+
+SKIP_TMAN = eos
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Fo/basic.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: basic.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-BASIC 1
+.Os
+.Sh NAME
+.Nm Fo-basic
+.Nd function blocks
+.Sh SYNOPSIS
+.Ft double
+.Fo sin
+.Fa "double x"
+.Fc
+.Ft double
+.Fo atan2
+.Fa "double y" "double x"
+.Fc
+.Sh DESCRIPTION
+.Ft double
+.Fo sin
+.Fa "double x"
+.Fc
+.Ft double
+.Fo atan2
+.Fa "double y" "double x"
+.Fc

Added: vendor/mandoc/dist/regress/mdoc/Fo/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+FO-BASIC(1)                 General Commands Manual                FO-BASIC(1)
+
+NNAAMMEE
+     FFoo--bbaassiicc - function blocks
+
+SSYYNNOOPPSSIISS
+     _d_o_u_b_l_e
+     ssiinn(_d_o_u_b_l_e _x);
+
+     _d_o_u_b_l_e
+     aattaann22(_d_o_u_b_l_e _y, _d_o_u_b_l_e _x);
+
+DDEESSCCRRIIPPTTIIOONN
+     _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x) _d_o_u_b_l_e aattaann22(_d_o_u_b_l_e _y, _d_o_u_b_l_e _x)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/basic.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/basic.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/basic.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+FO-BASIC(1) - General Commands Manual
+
+# NAME
+
+**Fo-basic** - function blocks
+
+# SYNOPSIS
+
+*double*  
+**sin**(*double x*);
+
+*double*  
+**atan2**(*double y*, *double x*);
+
+# DESCRIPTION
+
+*double*
+**sin**(*double x*)
+*double*
+**atan2**(*double y*, *double x*)
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,50 @@
+.\" $OpenBSD: break.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-BREAK 1
+.Os
+.Sh NAME
+.Nm Fo-break
+.Nd line breaks in function blocks
+.Sh SYNOPSIS
+.Fd using \&Fn:
+.Ft my_long_return_type *
+.Fn my_long_function "my_long_type first_argument" "my_long_type second_argument"
+.Ft void
+.Fn "this function name is so ridiculously long \
+that it will not fit on the line" "my_long_type first_argument" \
+"my_long_type second_argument" "my_long_type third_argument"
+.Fd using \&Fo and single-argument \&Fa:
+.Ft my_long_return_type *
+.Fo my_long_function
+.Fa "my_long_type first_argument"
+.Fa "my_long_type second_argument"
+.Fc
+.Ft void
+.Fo "this function name is so ridiculously long \
+that it will not fit on the line"
+.Fa "my_long_type first_argument"
+.Fa "my_long_type second_argument"
+.Fa "my_long_type third_argument"
+.Fc
+.Fd using \&Fo and multi-argument \&Fa:
+.Ft my_long_return_type *
+.Fo my_long_function
+.Fa "my_long_type first_argument" "my_long_type second_argument"
+.Fc
+.Sh DESCRIPTION
+using Fn:
+.br
+.Fn my_long_function "my_long_type first_argument" "my_long_type second_argument"
+.Pp
+using Fo and single-argument Fa:
+.br
+.Fo my_long_function
+.Fa "my_long_type first_argument"
+.Fa "my_long_type second_argument"
+.Fc
+.Pp
+using Fo and multi-argument Fa:
+.br
+.Fo my_long_function
+.Fa "my_long_type first_argument" "my_long_type second_argument"
+.Fc

Added: vendor/mandoc/dist/regress/mdoc/Fo/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,48 @@
+FO-BREAK(1)                 General Commands Manual                FO-BREAK(1)
+
+NNAAMMEE
+     FFoo--bbrreeaakk - line breaks in function blocks
+
+SSYYNNOOPPSSIISS
+     uussiinngg FFnn::
+
+     _m_y___l_o_n_g___r_e_t_u_r_n___t_y_p_e _*
+     mmyy__lloonngg__ffuunnccttiioonn(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t,
+         _m_y___l_o_n_g___t_y_p_e _s_e_c_o_n_d___a_r_g_u_m_e_n_t);
+
+     _v_o_i_d
+     tthhiiss ffuunnccttiioonn nnaammee iiss ssoo rriiddiiccuulloouussllyy lloonngg tthhaatt iitt wwiillll nnoott ffiitt oonn tthhee
+         lliinnee(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t, _m_y___l_o_n_g___t_y_p_e _s_e_c_o_n_d___a_r_g_u_m_e_n_t,
+         _m_y___l_o_n_g___t_y_p_e _t_h_i_r_d___a_r_g_u_m_e_n_t);
+
+     uussiinngg FFoo aanndd ssiinnggllee--aarrgguummeenntt FFaa::
+
+     _m_y___l_o_n_g___r_e_t_u_r_n___t_y_p_e _*
+     mmyy__lloonngg__ffuunnccttiioonn(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t,
+         _m_y___l_o_n_g___t_y_p_e _s_e_c_o_n_d___a_r_g_u_m_e_n_t);
+
+     _v_o_i_d
+     tthhiiss ffuunnccttiioonn nnaammee iiss ssoo rriiddiiccuulloouussllyy lloonngg tthhaatt iitt wwiillll nnoott ffiitt oonn tthhee
+         lliinnee(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t, _m_y___l_o_n_g___t_y_p_e _s_e_c_o_n_d___a_r_g_u_m_e_n_t,
+         _m_y___l_o_n_g___t_y_p_e _t_h_i_r_d___a_r_g_u_m_e_n_t);
+
+     uussiinngg FFoo aanndd mmuullttii--aarrgguummeenntt FFaa::
+
+     _m_y___l_o_n_g___r_e_t_u_r_n___t_y_p_e _*
+     mmyy__lloonngg__ffuunnccttiioonn(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t,
+         _m_y___l_o_n_g___t_y_p_e _s_e_c_o_n_d___a_r_g_u_m_e_n_t);
+
+DDEESSCCRRIIPPTTIIOONN
+     using Fn:
+     mmyy__lloonngg__ffuunnccttiioonn(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t, _m_y___l_o_n_g___t_y_p_e
+     _s_e_c_o_n_d___a_r_g_u_m_e_n_t)
+
+     using Fo and single-argument Fa:
+     mmyy__lloonngg__ffuunnccttiioonn(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t,
+     _m_y___l_o_n_g___t_y_p_e _s_e_c_o_n_d___a_r_g_u_m_e_n_t)
+
+     using Fo and multi-argument Fa:
+     mmyy__lloonngg__ffuunnccttiioonn(_m_y___l_o_n_g___t_y_p_e _f_i_r_s_t___a_r_g_u_m_e_n_t,
+     _m_y___l_o_n_g___t_y_p_e _s_e_c_o_n_d___a_r_g_u_m_e_n_t)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+FO-BREAK(1) - General Commands Manual
+
+# NAME
+
+**Fo-break** - line breaks in function blocks
+
+# SYNOPSIS
+
+**using Fn:**
+
+*my\_long\_return\_type \*‌*  
+**my\_long\_function**(*my\_long\_type first\_argument*, *my\_long\_type second\_argument*);
+
+*void*  
+**this function name is so ridiculously long that it will not fit on the line**(*my\_long\_type first\_argument*, *my\_long\_type second\_argument*, *my\_long\_type third\_argument*);
+
+**using Fo and single-argument Fa:**
+
+*my\_long\_return\_type \*‌*  
+**my\_long\_function**(*my\_long\_type first\_argument*,
+*my\_long\_type second\_argument*);
+
+*void*  
+**this function name is so ridiculously long that it will not fit on the line**(*my\_long\_type first\_argument*,
+*my\_long\_type second\_argument*,
+*my\_long\_type third\_argument*);
+
+**using Fo and multi-argument Fa:**
+
+*my\_long\_return\_type \*‌*  
+**my\_long\_function**(*my\_long\_type first\_argument*, *my\_long\_type second\_argument*);
+
+# DESCRIPTION
+
+using Fn:  
+**my\_long\_function**(*my\_long\_type first\_argument*, *my\_long\_type second\_argument*)
+
+using Fo and single-argument Fa:  
+**my\_long\_function**(*my\_long\_type first\_argument*,
+*my\_long\_type second\_argument*)
+
+using Fo and multi-argument Fa:  
+**my\_long\_function**(*my\_long\_type first\_argument*, *my\_long\_type second\_argument*)
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/eos.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: eos.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-EOS 1
+.Os
+.Sh NAME
+.Nm Fo-eos
+.Nd end of sentence handling after a function block
+.Sh DESCRIPTION
+As an example of a trigonometric function, let us consider
+.Fn "double sin" "double x" .
+Or do you prefer
+.Ft double
+.Fo cos
+.Fa double x
+.Fc .
+Either will do.

Added: vendor/mandoc/dist/regress/mdoc/Fo/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+FO-EOS(1)                   General Commands Manual                  FO-EOS(1)
+
+NNAAMMEE
+     FFoo--eeooss - end of sentence handling after a function block
+
+DDEESSCCRRIIPPTTIIOONN
+     As an example of a trigonometric function, let us consider ddoouubbllee
+     ssiinn(_d_o_u_b_l_e _x).  Or do you prefer _d_o_u_b_l_e ccooss(_d_o_u_b_l_e, _x).  Either will do.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/eos.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/eos.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/eos.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+FO-EOS(1) - General Commands Manual
+
+# NAME
+
+**Fo-eos** - end of sentence handling after a function block
+
+# DESCRIPTION
+
+As an example of a trigonometric function, let us consider
+**double sin**(*double x*).
+Or do you prefer
+*double*
+**cos**(*double*, *x*)
+.
+Either will do.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: font.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-FONT 1
+.Os
+.Sh NAME
+.Nm Fo-font
+.Nd font nesting in function blocks
+.Sh DESCRIPTION
+.Fn prefix\\fIname\\fPsuffix "type arg"
+trailing text
+.Pp
+.Fo prefix\\fIname\\fPsuffix
+.Fa "type arg"
+.Fc
+trailing text
+.Pp
+.Fo function
+.Fa prefix\\fBbold\\fPsuffix
+.Fc "Sy" bold
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Fo/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FO-FONT(1)                  General Commands Manual                 FO-FONT(1)
+
+NNAAMMEE
+     FFoo--ffoonntt - font nesting in function blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     pprreeffiixx_n_a_m_essuuffffiixx(_t_y_p_e _a_r_g) trailing text
+
+     pprreeffiixx_n_a_m_essuuffffiixx(_t_y_p_e _a_r_g) trailing text
+
+     ffuunnccttiioonn(_p_r_e_f_i_xbboolldd_s_u_f_f_i_x) bboolldd trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+FO-FONT(1) - General Commands Manual
+
+# NAME
+
+**Fo-font** - font nesting in function blocks
+
+# DESCRIPTION
+
+**prefix*name*suffix**(*type arg*)
+trailing text
+
+**prefix*name*suffix**(*type arg*)
+trailing text
+
+**function**(*prefix**bold**suffix*) **bold**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+.\" $OpenBSD: noarg.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FN-NOARG 1
+.Os
+.Sh NAME
+.Nm Fn-noarg
+.Nd function name macro without arguments
+.Sh DESCRIPTION
+with arguments:
+.Ft int
+.Fn abs "int i"
+.Ft long
+.Fo labs bogus
+.Fa "long i"
+.Fc
+void function arguments:
+.Ft int
+.Fn rand
+.Ft long
+.Fo random
+.Fc
+.Ft u_int32_t
+.Fo arc4random
+.Fa
+.Fc
+no name arguments:
+.Ft int
+.Fn
+no type arguments:
+.Ft
+.Fn abs "int i"
+no type and void function arguments:
+.Ft
+.Fn rand
+.Ft
+.Fo random
+.Fc
+.Ft
+.Fo arc4random
+.Fa
+.Fc
+no arguments at all:
+.Ft
+.Fn
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+FN-NOARG(1)                 General Commands Manual                FN-NOARG(1)
+
+NNAAMMEE
+     FFnn--nnooaarrgg - function name macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     with arguments: _i_n_t aabbss(_i_n_t _i) _l_o_n_g llaabbss(_l_o_n_g _i) void function arguments:
+     _i_n_t rraanndd() _l_o_n_g rraannddoomm() _u___i_n_t_3_2___t aarrcc44rraannddoomm() no name arguments: _i_n_t no
+     type arguments: aabbss(_i_n_t _i) no type and void function arguments: rraanndd()
+     rraannddoomm() aarrcc44rraannddoomm() no arguments at all: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+mandoc: noarg.in:24:2: WARNING: skipping empty macro: Fa
+mandoc: noarg.in:28:2: WARNING: skipping empty macro: Fn
+mandoc: noarg.in:30:2: WARNING: skipping empty macro: Ft
+mandoc: noarg.in:33:2: WARNING: skipping empty macro: Ft
+mandoc: noarg.in:35:2: WARNING: skipping empty macro: Ft
+mandoc: noarg.in:38:2: WARNING: skipping empty macro: Ft
+mandoc: noarg.in:40:2: WARNING: skipping empty macro: Fa
+mandoc: noarg.in:43:2: WARNING: skipping empty macro: Ft
+mandoc: noarg.in:44:2: WARNING: skipping empty macro: Fn
+mandoc: noarg.in:13:10: ERROR: skipping excess arguments: Fo ... bogus

Added: vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+FN-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Fn-noarg** - function name macro without arguments
+
+# DESCRIPTION
+
+with arguments:
+*int*
+**abs**(*int i*)
+*long*
+**labs**(*long i*)
+void function arguments:
+*int*
+**rand**()
+*long*
+**random**()
+*u\_int32\_t*
+**arc4random**()
+no name arguments:
+*int*
+no type arguments:
+**abs**(*int i*)
+no type and void function arguments:
+**rand**()
+**random**()
+**arc4random**()
+no arguments at all:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/nohead.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/nohead.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/nohead.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: nohead.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-NOHEAD 1
+.Os
+.Sh NAME
+.Nm Fo-nohead
+.Nd function block macro without head argument
+.Sh DESCRIPTION
+initial text
+.Ft int
+.Fo
+.Fa int
+.Fc
+final text

Added: vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+FO-NOHEAD(1)                General Commands Manual               FO-NOHEAD(1)
+
+NNAAMMEE
+     FFoo--nnoohheeaadd - function block macro without head argument
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text _i_n_t(_i_n_t) final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: nohead.in:11:2: WARNING: missing function name, using "": Fo

Added: vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/nohead.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FO-NOHEAD(1) - General Commands Manual
+
+# NAME
+
+**Fo-nohead** - function block macro without head argument
+
+# DESCRIPTION
+
+initial text
+*int*(*int*)
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/obsolete.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/obsolete.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/obsolete.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: obsolete.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-OBSOLETE 1
+.Os
+.Sh NAME
+.Nm Fo-obsolete
+.Nd obsolete function macros
+.Sh DESCRIPTION
+old function type
+.Ot fortran
+.Pp
+function return value
+.Fr value

Added: vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+FO-OBSOLETE(1)              General Commands Manual             FO-OBSOLETE(1)
+
+NNAAMMEE
+     FFoo--oobbssoolleettee - obsolete function macros
+
+DDEESSCCRRIIPPTTIIOONN
+     old function type _f_o_r_t_r_a_n
+
+     function return value _v_a_l_u_e
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: obsolete.in:10:2: WARNING: obsolete macro: Ot
+mandoc: obsolete.in:13:2: WARNING: obsolete macro: Fr

Added: vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/obsolete.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+FO-OBSOLETE(1) - General Commands Manual
+
+# NAME
+
+**Fo-obsolete** - obsolete function macros
+
+# DESCRIPTION
+
+old function type
+*fortran*
+
+function return value
+*value*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: punct.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-PUNCT 1
+.Os
+.Sh NAME
+.Nm Fo-punct
+.Nd punctuation on function input lines
+.Sh DESCRIPTION
+.Ft double
+.Fn sin. "," cos "Em" italic
+.Pp
+.Fa x "," y: "Sy" bold
+.Pp
+.Ft int "," float: "Sy" bold

Added: vendor/mandoc/dist/regress/mdoc/Fo/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FO-PUNCT(1)                 General Commands Manual                FO-PUNCT(1)
+
+NNAAMMEE
+     FFoo--ppuunncctt - punctuation on function input lines
+
+DDEESSCCRRIIPPTTIIOONN
+     _d_o_u_b_l_e ssiinn..(), cos _i_t_a_l_i_c
+
+     _x, _y_: bboolldd
+
+     _i_n_t, _f_l_o_a_t_: bboolldd
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: punct.in:10:8: STYLE: no blank before trailing delimiter: Fn sin.
+mandoc: punct.in:12:12: STYLE: no blank before trailing delimiter: Fa y:
+mandoc: punct.in:14:18: STYLE: no blank before trailing delimiter: Ft float:

Added: vendor/mandoc/dist/regress/mdoc/Fo/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+FO-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Fo-punct** - punctuation on function input lines
+
+# DESCRIPTION
+
+*double*
+**sin.**(), cos *italic*
+
+*x*, *y:* **bold**
+
+*int*, *float:* **bold**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/section.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/section.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/section.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,84 @@
+.\" $OpenBSD: section.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FN-SECTION 3
+.Os
+.Sh NAME
+.Nm Fn-section
+.Nd special handling of Fn in various sections
+.Sh SYNOPSIS
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh DESCRIPTION
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh RETURN VALUES
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh ENVIRONMENT
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh FILES
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh EXAMPLES
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh DIAGNOSTICS
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh ERRORS
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh SEE ALSO
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh STANDARDS
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh HISTORY
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh AUTHORS
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh CAVEATS
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh BUGS
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.Sh CUSTOM
+.nr nS 1
+.Ft int
+.Fn abs "int j"
+.Ft double
+.Fn sin "double x"
+.nr nS 0

Added: vendor/mandoc/dist/regress/mdoc/Fo/section.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/section.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/section.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,59 @@
+FN-SECTION(3)              Library Functions Manual              FN-SECTION(3)
+
+NNAAMMEE
+     FFnn--sseeccttiioonn - special handling of Fn in various sections
+
+SSYYNNOOPPSSIISS
+     _i_n_t
+     aabbss(_i_n_t _j);
+
+     _d_o_u_b_l_e
+     ssiinn(_d_o_u_b_l_e _x);
+
+DDEESSCCRRIIPPTTIIOONN
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+RREETTUURRNN VVAALLUUEESS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+EENNVVIIRROONNMMEENNTT
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+FFIILLEESS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+EEXXAAMMPPLLEESS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+DDIIAAGGNNOOSSTTIICCSS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+EERRRROORRSS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+SSEEEE AALLSSOO
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+SSTTAANNDDAARRDDSS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+HHIISSTTOORRYY
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+AAUUTTHHOORRSS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+CCAAVVEEAATTSS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+BBUUGGSS
+     _i_n_t aabbss(_i_n_t _j) _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x)
+
+CCUUSSTTOOMM
+     _i_n_t
+     aabbss(_i_n_t _j);
+
+     _d_o_u_b_l_e
+     ssiinn(_d_o_u_b_l_e _x);
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/section.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/section.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/section.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,114 @@
+FN-SECTION(3) - Library Functions Manual
+
+# NAME
+
+**Fn-section** - special handling of Fn in various sections
+
+# SYNOPSIS
+
+*int*  
+**abs**(*int j*);
+
+*double*  
+**sin**(*double x*);
+
+# DESCRIPTION
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# RETURN VALUES
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# ENVIRONMENT
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# FILES
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# EXAMPLES
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# DIAGNOSTICS
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# ERRORS
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# SEE ALSO
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# STANDARDS
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# HISTORY
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# AUTHORS
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# CAVEATS
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# BUGS
+
+*int*
+**abs**(*int j*)
+*double*
+**sin**(*double x*)
+
+# CUSTOM
+
+*int*  
+**abs**(*int j*);
+
+*double*  
+**sin**(*double x*);
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Fo/warn.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/warn.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/warn.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: warn.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FO-WARN 1
+.Os
+.Sh NAME
+.Nm Fo-warn
+.Nd warnings related to function blocks
+.Sh SYNOPSIS
+.Ft double
+.Fo sin()
+.Fa "double x"
+.Fc
+.Ft double
+.Fn atan2 "double y, double x"

Added: vendor/mandoc/dist/regress/mdoc/Fo/warn.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/warn.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/warn.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FO-WARN(1)                  General Commands Manual                 FO-WARN(1)
+
+NNAAMMEE
+     FFoo--wwaarrnn - warnings related to function blocks
+
+SSYYNNOOPPSSIISS
+     _d_o_u_b_l_e
+     ssiinn(())(_d_o_u_b_l_e _x);
+
+     _d_o_u_b_l_e
+     aattaann22(_d_o_u_b_l_e _y_, _d_o_u_b_l_e _x);
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Fo/warn.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/warn.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/warn.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: warn.in:10:8: WARNING: parenthesis in function name: sin()
+mandoc: warn.in:14:19: WARNING: comma in function argument: double y, double x

Added: vendor/mandoc/dist/regress/mdoc/Fo/warn.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Fo/warn.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Fo/warn.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+FO-WARN(1) - General Commands Manual
+
+# NAME
+
+**Fo-warn** - warnings related to function blocks
+
+# SYNOPSIS
+
+*double*  
+**sin()**(*double x*);
+
+*double*  
+**atan2**(*double y, double x*);
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ft/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ft/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ft/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1 2012/07/09 17:52:09 schwarze Exp $
+
+REGRESS_TARGETS = font
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ft/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ft/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ft/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FT-FONT 1
+.Os
+.Sh NAME
+.Nm Ft-font
+.Nd changing fonts inside the function return type macro
+.Sh DESCRIPTION
+normal text
+.Ft emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Ft/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ft/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ft/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+FT-FONT(1)                  General Commands Manual                 FT-FONT(1)
+
+NNAAMMEE
+     FFtt--ffoonntt - changing fonts inside the function return type macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ft/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ft/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ft/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FT-FONT(1) - General Commands Manual
+
+# NAME
+
+**Ft-font** - changing fonts inside the function return type macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ic/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = font noarg punct
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ic/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IC-FONT 1
+.Os
+.Sh NAME
+.Nm Ic-font
+.Nd changing fonts inside the internal command macro
+.Sh DESCRIPTION
+normal text
+.Ic bold\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Ic/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+IC-FONT(1)                  General Commands Manual                 IC-FONT(1)
+
+NNAAMMEE
+     IIcc--ffoonntt - changing fonts inside the internal command macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text bboolldd_e_m_p_h_a_s_i_sbbaacckk trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ic/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+IC-FONT(1) - General Commands Manual
+
+# NAME
+
+**Ic-font** - changing fonts inside the internal command macro
+
+# DESCRIPTION
+
+normal text
+**bold*emphasis*back**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ic/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IC-NOARG 1
+.Os
+.Sh NAME
+.Nm Ic-noarg
+.Nd interactive command without an argument
+.Sh DESCRIPTION
+with command:
+.Ic ls.
+no command:
+.Ic
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+IC-NOARG(1)                 General Commands Manual                IC-NOARG(1)
+
+NNAAMMEE
+     IIcc--nnooaarrgg - interactive command without an argument
+
+DDEESSCCRRIIPPTTIIOONN
+     with command: llss.. no command: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Ic
+mandoc: noarg.in:10:7: STYLE: no blank before trailing delimiter: Ic ls.

Added: vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+IC-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Ic-noarg** - interactive command without an argument
+
+# DESCRIPTION
+
+with command:
+**ls.**
+no command:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ic/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: punct.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt Ic-PUNCT 1
+.Os
+.Sh NAME
+.Nm Ic-punct
+.Nd punctuation handling by the Ic macro
+.Sh DESCRIPTION
+closing punctuation
+.Ic a )
+only one
+.Ic )
+only more than one
+.Ic ) )
+middle
+.Ic a ) z
+start
+.Ic ) z
+dot
+.Ic . z
+comma
+.Ic , z
+semicolon
+.Ic ; z
+colon
+.Ic : z
+quest
+.Ic ? z
+excl
+.Ic ! z
+paren
+.Ic ) z
+bracket
+.Ic ] z
+bar
+.Ic | m
+op paren
+.Ic ( a
+op bracket
+.Ic [ a
+.Pp
+quoted punctuation:
+.Ic a "(" b "|" c ")" d "," "Em" italic .

Added: vendor/mandoc/dist/regress/mdoc/Ic/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+Ic-PUNCT(1)                 General Commands Manual                Ic-PUNCT(1)
+
+NNAAMMEE
+     IIcc--ppuunncctt - punctuation handling by the Ic macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation aa) only one ) only more than one )) middle aa) zz start
+     ) zz dot . zz comma , zz semicolon ; zz colon : zz quest ? zz excl ! zz paren )
+     zz bracket ] zz bar | mm op paren (aa op bracket [aa
+
+     quoted punctuation: aa (bb | cc) dd, _i_t_a_l_i_c.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ic/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ic/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ic/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+Ic-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Ic-punct** - punctuation handling by the Ic macro
+
+# DESCRIPTION
+
+closing punctuation
+**a**)
+only one
+)
+only more than one
+))
+middle
+**a**) **z**
+start
+) **z**
+dot
+. **z**
+comma
+, **z**
+semicolon
+; **z**
+colon
+: **z**
+quest
+? **z**
+excl
+! **z**
+paren
+) **z**
+bracket
+] **z**
+bar
+| **m**
+op paren
+(**a**
+op bracket
+\[**a**
+
+quoted punctuation:
+**a** (**b** | **c**) **d**, *italic*.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/In/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.6 2015/02/06 01:07:07 schwarze Exp $
+
+REGRESS_TARGETS	 = break eos font noarg
+LINT_TARGETS	 = noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/In/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: break.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IN-BREAK 2
+.Os
+.Sh NAME
+.Nm In-break
+.Nd line break before header include file
+.Sh SYNOPSIS
+.In fcntl.h
+.Ft int
+.Fn open "const char *path" "int flags" "mode_t mode"
+.In sys/types.h
+.In unistd.h
+.Ft int
+.Fn dup "int oldd"
+.Ft ssize_t
+.Fn write "int d" "const void *buf" "size_t nbytes"
+.Sh DESCRIPTION
+.In fcntl.h
+.Ft int
+.Fn open "const char *path" "int flags" "mode_t mode"
+.In sys/types.h
+.In unistd.h
+.Ft int
+.Fn dup "int oldd"
+.Ft ssize_t
+.Fn write "int d" "const void *buf" "size_t nbytes"

Added: vendor/mandoc/dist/regress/mdoc/In/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+IN-BREAK(2)                   System Calls Manual                  IN-BREAK(2)
+
+NNAAMMEE
+     IInn--bbrreeaakk - line break before header include file
+
+SSYYNNOOPPSSIISS
+     ##iinncclluuddee <<ffccnnttll..hh>>
+
+     _i_n_t
+     ooppeenn(_c_o_n_s_t _c_h_a_r _*_p_a_t_h, _i_n_t _f_l_a_g_s, _m_o_d_e___t _m_o_d_e);
+
+     ##iinncclluuddee <<ssyyss//ttyyppeess..hh>>
+     ##iinncclluuddee <<uunniissttdd..hh>>
+
+     _i_n_t
+     dduupp(_i_n_t _o_l_d_d);
+
+     _s_s_i_z_e___t
+     wwrriittee(_i_n_t _d, _c_o_n_s_t _v_o_i_d _*_b_u_f, _s_i_z_e___t _n_b_y_t_e_s);
+
+DDEESSCCRRIIPPTTIIOONN
+     <_f_c_n_t_l_._h> _i_n_t ooppeenn(_c_o_n_s_t _c_h_a_r _*_p_a_t_h, _i_n_t _f_l_a_g_s, _m_o_d_e___t _m_o_d_e)
+     <_s_y_s_/_t_y_p_e_s_._h> <_u_n_i_s_t_d_._h> _i_n_t dduupp(_i_n_t _o_l_d_d) _s_s_i_z_e___t wwrriittee(_i_n_t _d, _c_o_n_s_t
+     _v_o_i_d _*_b_u_f, _s_i_z_e___t _n_b_y_t_e_s)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/In/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+IN-BREAK(2) - System Calls Manual
+
+# NAME
+
+**In-break** - line break before header include file
+
+# SYNOPSIS
+
+**#include <fcntl.h>**
+
+*int*  
+**open**(*const char \*path*, *int flags*, *mode\_t mode*);
+
+**#include <sys/types.h>**  
+**#include <unistd.h>**
+
+*int*  
+**dup**(*int oldd*);
+
+*ssize\_t*  
+**write**(*int d*, *const void \*buf*, *size\_t nbytes*);
+
+# DESCRIPTION
+
+<*fcntl.h*>
+*int*
+**open**(*const char \*path*, *int flags*, *mode\_t mode*)
+<*sys/types.h*>
+<*unistd.h*>
+*int*
+**dup**(*int oldd*)
+*ssize\_t*
+**write**(*int d*, *const void \*buf*, *size\_t nbytes*)
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/In/eos.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: eos.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IN-EOS 1
+.Os
+.Sh NAME
+.Nm In-eos
+.Nd end of sentence handling after the include macro
+.Sh DESCRIPTION
+Let's use
+.In string.h .
+And then something else.

Added: vendor/mandoc/dist/regress/mdoc/In/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+IN-EOS(1)                   General Commands Manual                  IN-EOS(1)
+
+NNAAMMEE
+     IInn--eeooss - end of sentence handling after the include macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Let's use <_s_t_r_i_n_g_._h>.  And then something else.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/In/eos.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/eos.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/eos.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+IN-EOS(1) - General Commands Manual
+
+# NAME
+
+**In-eos** - end of sentence handling after the include macro
+
+# DESCRIPTION
+
+Let's use
+<*string.h*>.
+And then something else.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/In/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IN-FONT 2
+.Os
+.Sh NAME
+.Nm In-font
+.Nd changing the font inside the include macro
+.Sh DESCRIPTION
+normal text
+.In prefix\\fBheader\\fPsuffix | after ":" punctuation "Sy" bold
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/In/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+IN-FONT(2)                    System Calls Manual                   IN-FONT(2)
+
+NNAAMMEE
+     IInn--ffoonntt - changing the font inside the include macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text <_p_r_e_f_i_xhheeaaddeerr_s_u_f_f_i_x> | after: punctuation bboolldd trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/In/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+IN-FONT(2) - System Calls Manual
+
+# NAME
+
+**In-font** - changing the font inside the include macro
+
+# DESCRIPTION
+
+normal text
+<*prefix**header**suffix*> | after: punctuation **bold**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/In/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IN-NOARG 2
+.Os
+.Sh NAME
+.Nm In-noarg
+.Nd include file macros without argument
+.Sh SYNOPSIS
+.In math.h
+.Ft double
+.Fn sin "double x"
+.In
+.Ft double
+.Fn cos "double x"
+.Sh DESCRIPTION
+.In math.h:
+.Ft double
+.Fn sin "double x"
+.In
+.Ft double
+.Fn cos "double x"

Added: vendor/mandoc/dist/regress/mdoc/In/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+IN-NOARG(2)                   System Calls Manual                  IN-NOARG(2)
+
+NNAAMMEE
+     IInn--nnooaarrgg - include file macros without argument
+
+SSYYNNOOPPSSIISS
+     ##iinncclluuddee <<mmaatthh..hh>>
+
+     _d_o_u_b_l_e
+     ssiinn(_d_o_u_b_l_e _x);
+
+     _d_o_u_b_l_e
+     ccooss(_d_o_u_b_l_e _x);
+
+DDEESSCCRRIIPPTTIIOONN
+     <_m_a_t_h_._h_:> _d_o_u_b_l_e ssiinn(_d_o_u_b_l_e _x) _d_o_u_b_l_e ccooss(_d_o_u_b_l_e _x)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/In/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: In
+mandoc: noarg.in:19:2: WARNING: skipping empty macro: In
+mandoc: noarg.in:16:11: STYLE: no blank before trailing delimiter: In math.h:

Added: vendor/mandoc/dist/regress/mdoc/In/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/In/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/In/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+IN-NOARG(2) - System Calls Manual
+
+# NAME
+
+**In-noarg** - include file macros without argument
+
+# SYNOPSIS
+
+**#include <math.h>**
+
+*double*  
+**sin**(*double x*);
+
+*double*  
+**cos**(*double x*);
+
+# DESCRIPTION
+
+<*math.h:*>
+*double*
+**sin**(*double x*)
+*double*
+**cos**(*double x*)
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Lb/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.6 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = break badargs eos
+LINT_TARGETS	= badargs
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Lb/badargs.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/badargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/badargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: badargs.in,v 1.5 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LB-BADARGS 3
+.Os
+.Sh NAME
+.Nm Lb-badargs
+.Nd bad arguments to the library macro
+.Sh LIBRARY
+.Lb murks.
+.Lb
+.Lb mylib another.

Added: vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+LB-BADARGS(3)              Library Functions Manual              LB-BADARGS(3)
+
+NNAAMMEE
+     LLbb--bbaaddaarrggss - bad arguments to the library macro
+
+LLIIBBRRAARRYY
+     library "murks."
+     library "mylib" another.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: badargs.in:10:2: WARNING: skipping empty macro: Lb
+mandoc: badargs.in:9:10: STYLE: no blank before trailing delimiter: Lb murks.
+mandoc: badargs.in:9:5: WARNING: unknown library name: Lb murks.
+mandoc: badargs.in:11:18: STYLE: no blank before trailing delimiter: Lb ... another.
+mandoc: badargs.in:11:5: WARNING: unknown library name: Lb mylib

Added: vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/badargs.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+LB-BADARGS(3) - Library Functions Manual
+
+# NAME
+
+**Lb-badargs** - bad arguments to the library macro
+
+# LIBRARY
+
+library “murks.”  
+library “mylib” another.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Lb/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: break.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LB-BREAK 3
+.Os
+.Sh NAME
+.Nm Lb-break
+.Nd output line breaks after the library macro
+.Sh LIBRARY
+.Lb mylib
+text
+.Sh DESCRIPTION
+.Lb mylib
+text

Added: vendor/mandoc/dist/regress/mdoc/Lb/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+LB-BREAK(3)                Library Functions Manual                LB-BREAK(3)
+
+NNAAMMEE
+     LLbb--bbrreeaakk - output line breaks after the library macro
+
+LLIIBBRRAARRYY
+     library "mylib"
+     text
+
+DDEESSCCRRIIPPTTIIOONN
+     library "mylib" text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Lb/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+LB-BREAK(3) - Library Functions Manual
+
+# NAME
+
+**Lb-break** - output line breaks after the library macro
+
+# LIBRARY
+
+library “mylib”  
+text
+
+# DESCRIPTION
+
+library “mylib”
+text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Lb/eos.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: eos.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LB-EOS 1
+.Os
+.Sh NAME
+.Nm Lb-eos
+.Nd end of sentence handling after the library macro
+.Sh DESCRIPTION
+Let's use the
+.Lb mylib .
+And some other libraries.

Added: vendor/mandoc/dist/regress/mdoc/Lb/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+LB-EOS(1)                   General Commands Manual                  LB-EOS(1)
+
+NNAAMMEE
+     LLbb--eeooss - end of sentence handling after the library macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Let's use the library "mylib".  And some other libraries.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Lb/eos.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lb/eos.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lb/eos.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+LB-EOS(1) - General Commands Manual
+
+# NAME
+
+**Lb-eos** - end of sentence handling after the library macro
+
+# DESCRIPTION
+
+Let's use the
+library “mylib”.
+And some other libraries.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Li/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = punct font
+LINT_TARGETS	= punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Li/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LI-FONT 1
+.Os
+.Sh NAME
+.Nm Li-font
+.Nd changing fonts inside the literal in-line macro
+.Sh DESCRIPTION
+normal text
+.Li literal\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Li/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+LI-FONT(1)                  General Commands Manual                 LI-FONT(1)
+
+NNAAMMEE
+     LLii--ffoonntt - changing fonts inside the literal in-line macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text literal_e_m_p_h_a_s_i_sback trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Li/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+LI-FONT(1) - General Commands Manual
+
+# NAME
+
+**Li-font** - changing fonts inside the literal in-line macro
+
+# DESCRIPTION
+
+normal text
+`literalemphasisback`
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Li/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,87 @@
+.\" $OpenBSD: punct.in,v 1.7 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LI-PUNCT 1
+.Os
+.Sh NAME
+.Nm Li-punct
+.Nd punctuation following a literal macro
+.Sh DESCRIPTION
+Leading punctuation:
+.Li ( b
+.Li "[" b
+.Li | b
+.Li . b
+.Li , b
+.Li ; b
+.Li : b
+.Li ? b
+.Li ! b
+.Li ) b
+.Li ] b
+.Pp
+Trailing punctuation:
+.Li a (
+.Li a [
+.Li a |
+.Li a .
+.Li a ","
+.Li a ;
+.Li a :
+.Li a ?
+.Li a !
+.Li a )
+.Li a ]
+.Pp
+Middle punctuation:
+.Li a ( b
+.Li a [ b
+.Li a | b
+.Li a . b
+.Li a , b
+.Li a ";" b
+.Li a : b
+.Li a ? b
+.Li a ! b
+.Li a ")" b
+.Li a ] b
+.Pp
+Isolated punctuation:
+.Li a Li ( Li b
+.Li a Li [ Li b
+.Li a Li | Li b
+.Li a Li . Li b
+.Li a Li , Li b
+.Li a Li ; Li b
+.Li a Li : Li b
+.Li a Li ? Li b
+.Li a Li ! Li b
+.Li a Li ) Li b
+.Li a Li ] Li b
+.Pp
+Isolated trailing punctuation:
+.Li a Li (
+.Li a Li [
+.Li a Li |
+.Li a Li .
+.Li a Li ,
+.Li a Li ;
+.Li a Li :
+.Li a Li ?
+.Li a Li !
+.Li a Li )
+.Li a Li ]
+.Pp
+Multiple isolated punctuation:
+.Li a Li ( [ Li b
+.Li a Li ) ] Li b
+.Pp
+Multiple punctuation:
+.Li [ ( arg ) ] .
+.Pp
+Quoted:
+.Li "a . b Nm" "Sy" bold
+.Li ". b Nm"
+.Li "."
+.Pp
+Missing blank:
+.Li a.

Added: vendor/mandoc/dist/regress/mdoc/Li/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+LI-PUNCT(1)                 General Commands Manual                LI-PUNCT(1)
+
+NNAAMMEE
+     LLii--ppuunncctt - punctuation following a literal macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Leading punctuation: (b [b | b . b , b ; b : b ? b ! b ) b ] b
+
+     Trailing punctuation: a ( a [ a | a.  a, a; a: a?  a!  a) a]
+
+     Middle punctuation: a (b a [b a | b a. b a, b a; b a: b a? b a! b a) b a]
+     b
+
+     Isolated punctuation: a (b a [b a | b a . b a , b a ; b a : b a ? b a ! b
+     a ) b a ] b
+
+     Isolated trailing punctuation: a ( a [ a | a .  a , a ; a : a ?  a !  a )
+     a ]
+
+     Multiple isolated punctuation: a ([b a )] b
+
+     Multiple punctuation: [(arg)].
+
+     Quoted: a . b Nm bboolldd . b Nm .
+
+     Missing blank: a.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Li/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+mandoc: punct.in:49:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:50:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:51:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:52:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:53:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:54:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:55:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:56:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:57:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:58:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:59:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:62:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:63:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:64:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:65:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:66:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:67:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:68:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:69:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:70:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:71:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:72:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:75:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:76:7: WARNING: skipping empty macro: Li
+mandoc: punct.in:84:2: WARNING: skipping empty macro: Li
+mandoc: punct.in:87:6: STYLE: no blank before trailing delimiter: Li a.

Added: vendor/mandoc/dist/regress/mdoc/Li/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Li/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Li/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,89 @@
+LI-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Li-punct** - punctuation following a literal macro
+
+# DESCRIPTION
+
+Leading punctuation:
+(`b`
+\[`b`
+| `b`
+. `b`
+, `b`
+; `b`
+: `b`
+? `b`
+! `b`
+) `b`
+] `b`
+
+Trailing punctuation:
+`a` (
+`a` \[
+`a` |
+`a`.
+`a`,
+`a`;
+`a`:
+`a`?
+`a`!
+`a`)
+`a`]
+
+Middle punctuation:
+`a` (`b`
+`a` \[`b`
+`a` | `b`
+`a`. `b`
+`a`, `b`
+`a`; `b`
+`a`: `b`
+`a`? `b`
+`a`! `b`
+`a`) `b`
+`a`] `b`
+
+Isolated punctuation:
+`a` (`b`
+`a` \[`b`
+`a` | `b`
+`a` . `b`
+`a` , `b`
+`a` ; `b`
+`a` : `b`
+`a` ? `b`
+`a` ! `b`
+`a` ) `b`
+`a` ] `b`
+
+Isolated trailing punctuation:
+`a` (
+`a` \[
+`a` |
+`a` .
+`a` ,
+`a` ;
+`a` :
+`a` ?
+`a` !
+`a` )
+`a` ]
+
+Multiple isolated punctuation:
+`a` (\[`b`
+`a` )] `b`
+
+Multiple punctuation:
+\[(`arg`)].
+
+Quoted:
+`a . b Nm` **bold**
+`. b Nm`
+.
+
+Missing blank:
+`a.`
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Lk/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+# $OpenBSD: Makefile,v 1.3 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = link noarg font
+LINT_TARGETS	= noarg
+
+# it's unclear what font changes in link destinations should do
+
+SKIP_MARKDOWN  ?= font
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Lk/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LK-FONT 1
+.Os
+.Sh NAME
+.Nm Lk-font
+.Nd changing the font inside the hyperlink macro
+.Sh DESCRIPTION
+normal text
+.Lk http://www.\\fIopenbsd\\fP.org/ Open\\fBBSD\\fPweb
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Lk/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+LK-FONT(1)                  General Commands Manual                 LK-FONT(1)
+
+NNAAMMEE
+     LLkk--ffoonntt - changing the font inside the hyperlink macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _O_p_e_nBBSSDD_w_e_b: hhttttpp::////wwwwww.._o_p_e_n_b_s_d..oorrgg// trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Lk/link.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/link.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/link.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: link.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LK-LINK 1
+.Os
+.Sh NAME
+.Nm Lk-link
+.Nd formatting of hyperlinks
+.Sh DESCRIPTION
+Here are some web sites of BSD operating systems:
+.Lk http://www.freebsd.org/ FreeBSD
+.Lk http://www.netbsd.org/ NetBSD
+.Lk http://www.openbsd.org/ OpenBSD
+.Sh SEE ALSO
+Here are some web sites of BSD operating systems:
+.Lk http://www.freebsd.org/ FreeBSD
+.Lk http://www.netbsd.org/ NetBSD
+.Lk http://www.openbsd.org/ OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Lk/link.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/link.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/link.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+LK-LINK(1)                  General Commands Manual                 LK-LINK(1)
+
+NNAAMMEE
+     LLkk--lliinnkk - formatting of hyperlinks
+
+DDEESSCCRRIIPPTTIIOONN
+     Here are some web sites of BSD operating systems: _F_r_e_e_B_S_D:
+     hhttttpp::////wwwwww..ffrreeeebbssdd..oorrgg// _N_e_t_B_S_D: hhttttpp::////wwwwww..nneettbbssdd..oorrgg// _O_p_e_n_B_S_D:
+     hhttttpp::////wwwwww..ooppeennbbssdd..oorrgg//
+
+SSEEEE AALLSSOO
+     Here are some web sites of BSD operating systems: _F_r_e_e_B_S_D:
+     hhttttpp::////wwwwww..ffrreeeebbssdd..oorrgg// _N_e_t_B_S_D: hhttttpp::////wwwwww..nneettbbssdd..oorrgg// _O_p_e_n_B_S_D:
+     hhttttpp::////wwwwww..ooppeennbbssdd..oorrgg//
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Lk/link.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/link.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/link.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+LK-LINK(1) - General Commands Manual
+
+# NAME
+
+**Lk-link** - formatting of hyperlinks
+
+# DESCRIPTION
+
+Here are some web sites of BSD operating systems:
+[FreeBSD](http://www.freebsd.org/)
+[NetBSD](http://www.netbsd.org/)
+[OpenBSD](http://www.openbsd.org/)
+
+# SEE ALSO
+
+Here are some web sites of BSD operating systems:
+[FreeBSD](http://www.freebsd.org/)
+[NetBSD](http://www.netbsd.org/)
+[OpenBSD](http://www.openbsd.org/)
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Lk/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: noarg.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LK-NOARG 1
+.Os
+.Sh NAME
+.Nm Lk-noarg
+.Nd hyperlink macro without arguments
+.Sh DESCRIPTION
+multiple arguments
+.Lk http://www.bsd.lv/ the bsd.lv project ,
+.Lk http://www.gnu.org/software/groff/ GNU troff ","
+two arguments
+.Lk http://mdocml.bsd.lv/ mandoc,
+one argument
+.Lk http://www.openbsd.org/,
+no argument
+.Lk
+.Pp
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+LK-NOARG(1)                 General Commands Manual                LK-NOARG(1)
+
+NNAAMMEE
+     LLkk--nnooaarrgg - hyperlink macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     multiple arguments _t_h_e _b_s_d_._l_v _p_r_o_j_e_c_t: hhttttpp::////wwwwww..bbssdd..llvv//, _G_N_U _t_r_o_f_f:
+           hhttttpp::////wwwwww..ggnnuu..oorrgg//ssooffttwwaarree//ggrrooffff//,
+     two arguments _m_a_n_d_o_c_,: hhttttpp::////mmddooccmmll..bbssdd..llvv// one argument
+     hhttttpp::////wwwwww..ooppeennbbssdd..oorrgg//,, no argument
+
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: noarg.in:17:2: WARNING: skipping empty macro: Lk
+mandoc: noarg.in:13:33: STYLE: no blank before trailing delimiter: Lk ... mandoc,
+mandoc: noarg.in:15:28: STYLE: no blank before trailing delimiter: Lk http://www.openbsd.org/,

Added: vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Lk/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+LK-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Lk-noarg** - hyperlink macro without arguments
+
+# DESCRIPTION
+
+multiple arguments
+[the bsd.lv project](http://www.bsd.lv/),
+[GNU troff](http://www.gnu.org/software/groff/),
+two arguments
+[mandoc,](http://mdocml.bsd.lv/)
+one argument
+[http://www.openbsd.org/,](http://www.openbsd.org/,)
+no argument
+
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+# $OpenBSD: Makefile,v 1.32 2017/01/11 17:39:45 schwarze Exp $
+
+SUBDIR  = Ad An Ap Aq Ar At Bd Bf Bk Bl Brq Bx Cd Cm
+SUBDIR += D1 Db Dd Dl Dq Dt Dv Em Eo Er Ev Ex Fd Fl Fo Ft Ic In Lb Li Lk
+SUBDIR += Ms Mt Nd Nm No Ns Oo Op Os Ox Pa Pf Pp Qq Rs Rv
+SUBDIR += Sh Sm Sq St Sx Sy Tn Ud Ux Va Vt Xr blank break
+
+.include "../Makefile.sub"
+.include <bsd.subdir.mk>

Added: vendor/mandoc/dist/regress/mdoc/Makefile.inc
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Makefile.inc	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Makefile.inc	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+# $OpenBSD: Makefile.inc,v 1.1 2009/10/28 03:20:42 schwarze Exp $
+
+.include "../Makefile.inc"

Added: vendor/mandoc/dist/regress/mdoc/Ms/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = noarg font
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ms/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt MS-FONT 1
+.Os
+.Sh NAME
+.Nm Ms-font
+.Nd changing fonts inside the mathematical symbol macro
+.Sh DESCRIPTION
+normal text
+.Ms bold\\fIemphasis\\fPback | after ":" punctuation "Em" italic
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Ms/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+MS-FONT(1)                  General Commands Manual                 MS-FONT(1)
+
+NNAAMMEE
+     MMss--ffoonntt - changing fonts inside the mathematical symbol macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text bboolldd_e_m_p_h_a_s_i_sbbaacckk | aafftteerr: ppuunnccttuuaattiioonn _i_t_a_l_i_c trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ms/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+MS-FONT(1) - General Commands Manual
+
+# NAME
+
+**Ms-font** - changing fonts inside the mathematical symbol macro
+
+# DESCRIPTION
+
+normal text
+**bold*emphasis*back** | **after**: **punctuation** *italic*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ms/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt MS-NOARG 1
+.Os
+.Sh NAME
+.Nm Ms-noarg
+.Nd mathematical symbol without an argument
+.Sh DESCRIPTION
+with symbol:
+.Ms alpha.
+no symbol:
+.Ms
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+MS-NOARG(1)                 General Commands Manual                MS-NOARG(1)
+
+NNAAMMEE
+     MMss--nnooaarrgg - mathematical symbol without an argument
+
+DDEESSCCRRIIPPTTIIOONN
+     with symbol: aallpphhaa.. no symbol: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Ms
+mandoc: noarg.in:10:10: STYLE: no blank before trailing delimiter: Ms alpha.

Added: vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ms/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+MS-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Ms-noarg** - mathematical symbol without an argument
+
+# DESCRIPTION
+
+with symbol:
+**alpha.**
+no symbol:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Mt/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Mt/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Mt/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+# $OpenBSD: Makefile,v 1.5 2012/07/09 17:52:09 schwarze Exp $
+
+REGRESS_TARGETS = simple font
+LINT_TARGETS =	  simple
+
+# it's unclear what font changes in link destinations should do
+
+SKIP_MARKDOWN ?= font
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Mt/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Mt/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Mt/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt MT-FONT 1
+.Os
+.Sh NAME
+.Nm Mt-font
+.Nd changing fonts inside the mailto macro
+.Sh DESCRIPTION
+normal text
+.Mt emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Mt/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Mt/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Mt/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+MT-FONT(1)                  General Commands Manual                 MT-FONT(1)
+
+NNAAMMEE
+     MMtt--ffoonntt - changing fonts inside the mailto macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Mt/simple.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Mt/simple.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Mt/simple.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: simple.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt MT-SIMPLE 1
+.Os
+.Sh NAME
+.Nm Mt-simple
+.Nd mailto
+.Sh DESCRIPTION
+Please send mail to
+.Mt schwarze at openbsd.org ";" "Sy" bold .
+.Pp
+Pay attention to
+.Mt punctuation at localhost.
+.Pp
+Do not send mail to
+.Mt .

Added: vendor/mandoc/dist/regress/mdoc/Mt/simple.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Mt/simple.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Mt/simple.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+MT-SIMPLE(1)                General Commands Manual               MT-SIMPLE(1)
+
+NNAAMMEE
+     MMtt--ssiimmppllee - mailto
+
+DDEESSCCRRIIPPTTIIOONN
+     Please send mail to _s_c_h_w_a_r_z_e_@_o_p_e_n_b_s_d_._o_r_g; bboolldd.
+
+     Pay attention to _p_u_n_c_t_u_a_t_i_o_n_@_l_o_c_a_l_h_o_s_t_.
+
+     Do not send mail to _~.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Mt/simple.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Mt/simple.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Mt/simple.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: simple.in:13:26: STYLE: no blank before trailing delimiter: Mt punctuation at localhost.

Added: vendor/mandoc/dist/regress/mdoc/Mt/simple.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Mt/simple.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Mt/simple.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+MT-SIMPLE(1) - General Commands Manual
+
+# NAME
+
+**Mt-simple** - mailto
+
+# DESCRIPTION
+
+Please send mail to
+[schwarze at openbsd.org](mailto:schwarze at openbsd.org); **bold**.
+
+Pay attention to
+[punctuation at localhost.](mailto:punctuation at localhost.)
+
+Do not send mail to
+[~](mailto:~).
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nd/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+# $OpenBSD: Makefile,v 1.5 2015/02/11 13:37:31 schwarze Exp $
+
+REGRESS_TARGETS	 = broken hyph noarg par
+LINT_TARGETS	 = broken noarg
+
+SKIP_MARKDOWN	?= broken
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Nd/broken.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: broken.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ND-BROKEN 1
+.Os
+.Sh NAME
+.Oo
+.Nm Nd-broken
+.Nd description lines ended
+.Oc
+by explicit blocks
+.Sh DESCRIPTION
+Start nested lists:
+.Bl -tag -width Ds
+.Bl -tag -width Ds
+.It inner tag
+inner text
+.Nd inner description
+.El
+back to outer list
+.It outer tag
+outer text
+.El
+.Pp
+Broken together with a child block:
+.\" Crashed before mdoc_macro.c OpenBSD rev. 1.171
+.Ao ao
+.Bo bo
+.Nd nd
+.Pq pq bc Bc ac
+.Ac Op op
+end of file

Added: vendor/mandoc/dist/regress/mdoc/Nd/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+ND-BROKEN(1)                General Commands Manual               ND-BROKEN(1)
+
+NNAAMMEE
+     [NNdd--bbrrookkeenn - description lines ended] by explicit blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     Start nested lists:
+
+     inner tag
+             inner text - inner description
+     back to outer list
+
+     outer tag
+             outer text
+
+     Broken together with a child block: <ao [bo - nd (pq bc] ac)> [op] end of
+     file
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nd/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+mandoc: broken.in:29:11: WARNING: blocks badly nested: Bo breaks Pq
+mandoc: broken.in:6:2: WARNING: bad NAME section content: Oo
+mandoc: broken.in:10:1: WARNING: bad NAME section content: text
+mandoc: broken.in:5:2: WARNING: NAME section without Nm before Nd
+mandoc: broken.in:5:2: WARNING: NAME section without description
+mandoc: broken.in:17:2: WARNING: description line outside NAME section: Nd
+mandoc: broken.in:14:2: WARNING: moving content out of list: Bl
+mandoc: broken.in:19:1: WARNING: moving content out of list: text
+mandoc: broken.in:28:2: WARNING: description line outside NAME section: Nd

Added: vendor/mandoc/dist/regress/mdoc/Nd/hyph.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/hyph.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/hyph.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: hyph.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ND-HYPH 1
+.Os
+.Sh NAME
+.Nm Nd-hyph
+.Nd when there is already a hyphen within the the word, \
+line-breaking is permitted at that place
+.Sh DESCRIPTION
+Even in the document description line in the
+.Sx NAME
+section.

Added: vendor/mandoc/dist/regress/mdoc/Nd/hyph.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/hyph.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/hyph.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+ND-HYPH(1)                  General Commands Manual                 ND-HYPH(1)
+
+NNAAMMEE
+     NNdd--hhyypphh - when there is already a hyphen within the the word, line-
+     breaking is permitted at that place
+
+DDEESSCCRRIIPPTTIIOONN
+     Even in the document description line in the _N_A_M_E section.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nd/hyph.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/hyph.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/hyph.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+ND-HYPH(1) - General Commands Manual
+
+# NAME
+
+**Nd-hyph** - when there is already a hyphen within the the word, line-breaking is permitted at that place
+
+# DESCRIPTION
+
+Even in the document description line in the
+*NAME*
+section.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nd/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ND-ARG0 1
+.Os
+.Sh NAME
+.Nm Nd-arg0
+.Nd
+.Sh DESCRIPTION
+empty description line

Added: vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+ND-ARG0(1)                  General Commands Manual                 ND-ARG0(1)
+
+NNAAMMEE
+     NNdd--aarrgg00 -
+
+DDEESSCCRRIIPPTTIIOONN
+     empty description line
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noarg.in:7:2: WARNING: missing description line, using "": Nd

Added: vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+ND-ARG0(1) - General Commands Manual
+
+# NAME
+
+**Nd-arg0** -
+
+# DESCRIPTION
+
+empty description line
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nd/par.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/par.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/par.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: par.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ND-PAR 1
+.Os
+.Sh NAME
+.Nm Nd-par
+.Nd paragraph macro
+after one-line description
+.Pp
+Usually, there shouldn't be additional text in the NAME section.
+.Sh DESCRIPTION
+The text belongs here.
+.Nd stray
+description macro
+.Pp
+Back to normal state.

Added: vendor/mandoc/dist/regress/mdoc/Nd/par.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/par.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/par.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+ND-PAR(1)                   General Commands Manual                  ND-PAR(1)
+
+NNAAMMEE
+     NNdd--ppaarr - paragraph macro after one-line description
+
+     Usually, there shouldn't be additional text in the NAME section.
+
+DDEESSCCRRIIPPTTIIOONN
+     The text belongs here.  - stray description macro
+
+     Back to normal state.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nd/par.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nd/par.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nd/par.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+ND-PAR(1) - General Commands Manual
+
+# NAME
+
+**Nd-par** - paragraph macro
+after one-line description
+
+Usually, there shouldn't be additional text in the NAME section.
+
+# DESCRIPTION
+
+The text belongs here. - stray
+description macro
+
+Back to normal state.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+# $OpenBSD: Makefile,v 1.13 2017/02/06 03:44:37 schwarze Exp $
+
+REGRESS_TARGETS	 = badNAME badNAMEuse break broken
+REGRESS_TARGETS	+= empty emptyNAME emptyNAMEuse
+REGRESS_TARGETS	+= font long par parns punct
+
+LINT_TARGETS	 = badNAME badNAMEuse break broken punct
+
+# groff-1.22.3/mandoc differences:
+# - When the head of an Nm block in the SYNOPSIS is broken by an
+#   explicit block end macro on the same line, formatting differs,
+#   but doesn't make sense either way.
+# - Groff doesn't support the nS register.
+
+SKIP_GROFF	 = broken parns
+SKIP_TMAN	 = broken par parns
+
+# groff-1.22.3 defect:
+# When a SYNOPSIS Nm block head breaks a sub block, all the
+# remaining content in the document gets lost.
+
+SKIP_GROFF	+= break
+
+SKIP_MARKDOWN	?= badNAME badNAMEuse emptyNAME emptyNAMEuse
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Nm/badNAME.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/badNAME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/badNAME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: badNAME.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-BADNAME 1
+.Os
+.Sh NAME
+.Nm Bx
+.Nd text production macro on the NAME \&Nm line
+.Sh SYNOPSIS
+badNAME

Added: vendor/mandoc/dist/regress/mdoc/Nm/badNAME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/badNAME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/badNAME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+NM-BADNAME(1)               General Commands Manual              NM-BADNAME(1)
+
+NNAAMMEE
+     BSD - text production macro on the NAME Nm line
+
+SSYYNNOOPPSSIISS
+     badNAME
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/badNAME.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/badNAME.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/badNAME.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badNAME.in:6:2: ERROR: missing manual name, using "": Nm
+mandoc: badNAME.in:6:5: WARNING: bad NAME section content: Bx

Added: vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: badNAMEuse.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-BADNAMEUSE 1
+.Os
+.Sh NAME
+.Nm Bx
+.Nd text production macro on the NAME \&Nm line, used later
+.Sh SYNOPSIS
+.Nm some_name
+.Nm

Added: vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+NM-BADNAMEUSE(1)            General Commands Manual           NM-BADNAMEUSE(1)
+
+NNAAMMEE
+     BSD - text production macro on the NAME Nm line, used later
+
+SSYYNNOOPPSSIISS
+     ssoommee__nnaammee
+     ssoommee__nnaammee
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/badNAMEuse.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badNAMEuse.in:6:2: ERROR: missing manual name, using "": Nm
+mandoc: badNAMEuse.in:6:5: WARNING: bad NAME section content: Bx

Added: vendor/mandoc/dist/regress/mdoc/Nm/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-BREAK 1
+.Os
+.Sh NAME
+.Nm Nm-break
+.Nd name block head breaking another block
+.Sh SYNOPSIS
+.Nm before Bo within
+.Sh DESCRIPTION
+initial text
+.Nm
+final text

Added: vendor/mandoc/dist/regress/mdoc/Nm/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+NM-BREAK(1)                 General Commands Manual                NM-BREAK(1)
+
+NNAAMMEE
+     NNmm--bbrreeaakk - name block head breaking another block
+
+SSYYNNOOPPSSIISS
+     bbeeffoorree [[wwiitthhiinn]]
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text NNmm--bbrreeaakk final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: break.in:10:2: ERROR: inserting missing end of block: Sh breaks Bo

Added: vendor/mandoc/dist/regress/mdoc/Nm/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+NM-BREAK(1) - General Commands Manual
+
+# NAME
+
+**Nm-break** - name block head breaking another block
+
+# SYNOPSIS
+
+**before \[within]**
+
+# DESCRIPTION
+
+initial text
+**Nm-break**
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/broken.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: broken.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-BROKEN 1
+.Os
+.Sh NAME
+.Nm Nm-broken
+.Nd broken synapsis name block
+.Sh SYNOPSIS
+.Ft int
+.Fo function
+.Nm name Fc tail
+.\" Crashed in validation before mdoc_macro.c OpenBSD rev. 1.167
+.Bl -dash
+.Oo oo
+.Nm nm
+.Bk -words
+oc
+.Oc
+.Ek
+.It
+item
+.El

Added: vendor/mandoc/dist/regress/mdoc/Nm/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+NM-BROKEN(1)                General Commands Manual               NM-BROKEN(1)
+
+NNAAMMEE
+     NNmm--bbrrookkeenn - broken synapsis name block
+
+SSYYNNOOPPSSIISS
+     _i_n_t
+     ffuunnccttiioonn(nnaammee);
+      tail [oo
+     nnmm oc]
+
+     --   item
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: broken.in:18:2: WARNING: blocks badly nested: Oo breaks Bk
+mandoc: broken.in:14:2: WARNING: moving content out of list: Oo

Added: vendor/mandoc/dist/regress/mdoc/Nm/broken.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/broken.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/broken.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+NM-BROKEN(1) - General Commands Manual
+
+# NAME
+
+**Nm-broken** - broken synapsis name block
+
+# SYNOPSIS
+
+*int*  
+**function**(**name**);
+
+tail
+\[oo  
+**nm**
+oc]
+
+-	item
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: empty.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-EMPTY 2
+.Os
+.Sh NAME
+.Nm Nm-empty
+.Nd handling of empty name macros
+.Sh SYNOPSIS
+.Nm
+.Nm
+.Sh DESCRIPTION
+The
+.Nm
+utility ...

Added: vendor/mandoc/dist/regress/mdoc/Nm/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+NM-EMPTY(2)                   System Calls Manual                  NM-EMPTY(2)
+
+NNAAMMEE
+     NNmm--eemmppttyy - handling of empty name macros
+
+SSYYNNOOPPSSIISS
+     NNmm--eemmppttyy
+     NNmm--eemmppttyy
+
+DDEESSCCRRIIPPTTIIOONN
+     The NNmm--eemmppttyy utility ...
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+NM-EMPTY(2) - System Calls Manual
+
+# NAME
+
+**Nm-empty** - handling of empty name macros
+
+# SYNOPSIS
+
+**Nm-empty**  
+**Nm-empty**
+
+# DESCRIPTION
+
+The
+**Nm-empty**
+utility ...
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/emptyNAME.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/emptyNAME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/emptyNAME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: emptyNAME.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-EMPTYNAME 1
+.Os
+.Sh NAME
+.Nm
+.Nd empty NAME \&Nm line
+.Sh SYNOPSIS
+emptyNAME

Added: vendor/mandoc/dist/regress/mdoc/Nm/emptyNAME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/emptyNAME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/emptyNAME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+NM-EMPTYNAME(1)             General Commands Manual            NM-EMPTYNAME(1)
+
+NNAAMMEE
+     - empty NAME Nm line
+
+SSYYNNOOPPSSIISS
+     emptyNAME
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/emptyNAMEuse.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/emptyNAMEuse.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/emptyNAMEuse.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: emptyNAMEuse.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-EMPTYNAMEUSE 1
+.Os
+.Sh NAME
+.Nm
+.Nd empty NAME \&Nm line, used later
+.Sh SYNOPSIS
+.Nm some_name
+.Nm

Added: vendor/mandoc/dist/regress/mdoc/Nm/emptyNAMEuse.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/emptyNAMEuse.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/emptyNAMEuse.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+NM-EMPTYNAMEUSE(1)          General Commands Manual         NM-EMPTYNAMEUSE(1)
+
+NNAAMMEE
+     - empty NAME Nm line, used later
+
+SSYYNNOOPPSSIISS
+     ssoommee__nnaammee
+     ssoommee__nnaammee
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-FONT 1
+.Os
+.Sh NAME
+.Nm Nm-font
+.Nd changing fonts inside the name macro
+.Sh DESCRIPTION
+normal text
+.Nm bold\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Nm/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+NM-FONT(1)                  General Commands Manual                 NM-FONT(1)
+
+NNAAMMEE
+     NNmm--ffoonntt - changing fonts inside the name macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text bboolldd_e_m_p_h_a_s_i_sbbaacckk trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+NM-FONT(1) - General Commands Manual
+
+# NAME
+
+**Nm-font** - changing fonts inside the name macro
+
+# DESCRIPTION
+
+normal text
+**bold*emphasis*back**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/long.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/long.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/long.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: long.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-LONG 1
+.Os
+.Sh NAME
+.Nm \&Nm-long
+.Nd long \&Nm in the SYNOPSIS
+.Sh SYNOPSIS
+.Nm "This is a terribly long name, it is so long that it does not fit \
+one one single line -"
+.Fl o
+.Ar

Added: vendor/mandoc/dist/regress/mdoc/Nm/long.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/long.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/long.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+NM-LONG(1)                  General Commands Manual                 NM-LONG(1)
+
+NNAAMMEE
+     NNmm--lloonngg - long Nm in the SYNOPSIS
+
+SSYYNNOOPPSSIISS
+     TThhiiss iiss aa tteerrrriibbllyy lloonngg nnaammee,, iitt iiss ssoo lloonngg tthhaatt iitt ddooeess nnoott ffiitt oonnee oonnee
+                                                                                            ssiinnggllee
+                                                                                            lliinnee
+                                                                                            --
+                                                                                            --oo
+                                                                                            _f_i_l_e _._._.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/long.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/long.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/long.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+NM-LONG(1) - General Commands Manual
+
+# NAME
+
+**Nm-long** - long Nm in the SYNOPSIS
+
+# SYNOPSIS
+
+**This is a terribly long name, it is so long that it does not fit one one single line -**
+**-o**
+*file ...*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/par.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/par.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/par.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: par.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-PAR 1
+.Os
+.Sh NAME
+.Nm Nm-par
+.Nd paragraph macro in a synopsis name block
+.Sh SYNOPSIS
+.Nm
+.Fl a
+.Pp
+.Fl b

Added: vendor/mandoc/dist/regress/mdoc/Nm/par.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/par.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/par.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+NM-PAR(1)                   General Commands Manual                  NM-PAR(1)
+
+NNAAMMEE
+     NNmm--ppaarr - paragraph macro in a synopsis name block
+
+SSYYNNOOPPSSIISS
+     NNmm--ppaarr --aa
+
+            --bb
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/par.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/par.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/par.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+NM-PAR(1) - General Commands Manual
+
+# NAME
+
+**Nm-par** - paragraph macro in a synopsis name block
+
+# SYNOPSIS
+
+**Nm-par**
+**-a**
+
+**-b**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/parns.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/parns.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/parns.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+.\" $OpenBSD: parns.in,v 1.2 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-PAR 1
+.Os
+.Sh NAME
+.Nm Nm-par
+.Nd paragraph macro in a name block
+.Sh DESCRIPTION
+.nr nS 1
+.Nm
+.Fl a
+.Pp
+.Fl b
+.Nm
+.Fl a
+.nr nS 0
+.Pp
+.Fl b
+.nr nS 1
+.Nm
+.Oo Fl a
+.nr nS 0
+.Pp
+.Fl b Oc

Added: vendor/mandoc/dist/regress/mdoc/Nm/parns.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/parns.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/parns.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+NM-PAR(1)                   General Commands Manual                  NM-PAR(1)
+
+NNAAMMEE
+     NNmm--ppaarr - paragraph macro in a name block
+
+DDEESSCCRRIIPPTTIIOONN
+     NNmm--ppaarr --aa
+
+            --bb
+     NNmm--ppaarr --aa
+
+     --bb
+     NNmm--ppaarr [--aa
+
+            --bb]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/parns.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/parns.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/parns.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+NM-PAR(1) - General Commands Manual
+
+# NAME
+
+**Nm-par** - paragraph macro in a name block
+
+# DESCRIPTION
+
+**Nm-par**
+**-a**
+
+**-b**  
+**Nm-par**
+**-a**
+
+**-b**  
+**Nm-par**
+\[**-a**
+
+**-b**]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Nm/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: punct.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NM-PUNCT 1
+.Os
+.Sh NAME
+.Nm Nm-punct
+.Nd punctuation handling by the Nm macro
+.Sh DESCRIPTION
+closing punctuation
+.Nm a )
+only one
+.Nm )
+only more than one
+.Nm ) )
+middle
+.Nm a ) z
+start
+.Nm ) z
+dot
+.Nm . z
+comma
+.Nm , z
+semicolon
+.Nm ; z
+colon
+.Nm : z
+quest
+.Nm ? z
+excl
+.Nm ! z
+paren
+.Nm ) z
+bracket
+.Nm ] z
+bar
+.Nm | m
+op paren
+.Nm ( a
+op bracket
+.Nm [ a
+.Pp
+Missing blank:
+.Nm Nm-punct.

Added: vendor/mandoc/dist/regress/mdoc/Nm/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+NM-PUNCT(1)                 General Commands Manual                NM-PUNCT(1)
+
+NNAAMMEE
+     NNmm--ppuunncctt - punctuation handling by the Nm macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation aa) only one NNmm--ppuunncctt) only more than one NNmm--ppuunncctt))
+     middle aa) zz start NNmm--ppuunncctt) z dot NNmm--ppuunncctt. z comma NNmm--ppuunncctt, z semicolon
+     NNmm--ppuunncctt; z colon NNmm--ppuunncctt: z quest NNmm--ppuunncctt? z excl NNmm--ppuunncctt! z paren
+     NNmm--ppuunncctt) z bracket NNmm--ppuunncctt] z bar | mm op paren (aa op bracket [aa
+
+     Missing blank: NNmm--ppuunncctt..
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Nm/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: punct.in:43:13: STYLE: no blank before trailing delimiter: Nm Nm-punct.

Added: vendor/mandoc/dist/regress/mdoc/Nm/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Nm/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Nm/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+NM-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Nm-punct** - punctuation handling by the Nm macro
+
+# DESCRIPTION
+
+closing punctuation
+**a**)
+only one
+**Nm-punct**)
+only more than one
+**Nm-punct**))
+middle
+**a**) **z**
+start
+**Nm-punct**) z
+dot
+**Nm-punct**. z
+comma
+**Nm-punct**, z
+semicolon
+**Nm-punct**; z
+colon
+**Nm-punct**: z
+quest
+**Nm-punct**? z
+excl
+**Nm-punct**! z
+paren
+**Nm-punct**) z
+bracket
+**Nm-punct**] z
+bar
+| **m**
+op paren
+(**a**
+op bracket
+\[**a**
+
+Missing blank:
+**Nm-punct.**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/No/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/11/17 06:44:35 schwarze Exp $
+
+REGRESS_TARGETS = punct spacing
+LINT_TARGETS	= punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/No/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,87 @@
+.\" $OpenBSD: punct.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NO-PUNCT 1
+.Os
+.Sh NAME
+.Nm No-punct
+.Nd punctuation after the normal macro
+.Sh DESCRIPTION
+Leading punctuation:
+.No "(" b
+.No [ b
+.No | b
+.No . b
+.No , b
+.No ; b
+.No : b
+.No ? b
+.No ! b
+.No ) b
+.No ] b
+.Pp
+Trailing punctuation:
+.No a (
+.No a [
+.No a |
+.No a .
+.No a ,
+.No a ;
+.No a :
+.No a ?
+.No a !
+.No a )
+.No a "]"
+.Pp
+Middle punctuation:
+.No a ( b
+.No a "[" b
+.No a | b
+.No a . b
+.No a , b
+.No a ; b
+.No a : b
+.No a "?" b
+.No a ! b
+.No a ) b
+.No a ] b
+.Pp
+Isolated punctuation:
+.No a No ( No b
+.No a No [ No b
+.No a No | No b
+.No a No . No b
+.No a No , No b
+.No a No ; No b
+.No a No : No b
+.No a No ? No b
+.No a No ! No b
+.No a No ) No b
+.No a No ] No b
+.Pp
+Isolated trailing punctuation:
+.No a No (
+.No a No [
+.No a No |
+.No a No .
+.No a No ,
+.No a No ;
+.No a No :
+.No a No ?
+.No a No !
+.No a No )
+.No a No ]
+.Pp
+Multiple isolated punctuation:
+.No a No ( [ No b
+.No a No ) ] No b
+.Pp
+Multiple punctuation:
+.No [ ( arg ) ] .
+.Pp
+Quoted:
+.No "a . b Nm" "Sy" bold
+.No ". b Nm"
+.No "."
+.Pp
+Missing blank:
+.No a.

Added: vendor/mandoc/dist/regress/mdoc/No/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+NO-PUNCT(1)                 General Commands Manual                NO-PUNCT(1)
+
+NNAAMMEE
+     NNoo--ppuunncctt - punctuation after the normal macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Leading punctuation: (b [b | b . b , b ; b : b ? b ! b ) b ] b
+
+     Trailing punctuation: a ( a [ a | a.  a, a; a: a?  a!  a) a]
+
+     Middle punctuation: a (b a [b a | b a. b a, b a; b a: b a? b a! b a) b a]
+     b
+
+     Isolated punctuation: a (b a [b a | b a . b a , b a ; b a : b a ? b a ! b
+     a ) b a ] b
+
+     Isolated trailing punctuation: a ( a [ a | a .  a , a ; a : a ?  a !  a )
+     a ]
+
+     Multiple isolated punctuation: a ([b a )] b
+
+     Multiple punctuation: [(arg)].
+
+     Quoted: a . b Nm bboolldd . b Nm .
+
+     Missing blank: a.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/No/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+mandoc: punct.in:49:7: WARNING: skipping empty macro: No
+mandoc: punct.in:50:7: WARNING: skipping empty macro: No
+mandoc: punct.in:51:7: WARNING: skipping empty macro: No
+mandoc: punct.in:52:7: WARNING: skipping empty macro: No
+mandoc: punct.in:53:7: WARNING: skipping empty macro: No
+mandoc: punct.in:54:7: WARNING: skipping empty macro: No
+mandoc: punct.in:55:7: WARNING: skipping empty macro: No
+mandoc: punct.in:56:7: WARNING: skipping empty macro: No
+mandoc: punct.in:57:7: WARNING: skipping empty macro: No
+mandoc: punct.in:58:7: WARNING: skipping empty macro: No
+mandoc: punct.in:59:7: WARNING: skipping empty macro: No
+mandoc: punct.in:62:7: WARNING: skipping empty macro: No
+mandoc: punct.in:63:7: WARNING: skipping empty macro: No
+mandoc: punct.in:64:7: WARNING: skipping empty macro: No
+mandoc: punct.in:65:7: WARNING: skipping empty macro: No
+mandoc: punct.in:66:7: WARNING: skipping empty macro: No
+mandoc: punct.in:67:7: WARNING: skipping empty macro: No
+mandoc: punct.in:68:7: WARNING: skipping empty macro: No
+mandoc: punct.in:69:7: WARNING: skipping empty macro: No
+mandoc: punct.in:70:7: WARNING: skipping empty macro: No
+mandoc: punct.in:71:7: WARNING: skipping empty macro: No
+mandoc: punct.in:72:7: WARNING: skipping empty macro: No
+mandoc: punct.in:75:7: WARNING: skipping empty macro: No
+mandoc: punct.in:76:7: WARNING: skipping empty macro: No
+mandoc: punct.in:84:2: WARNING: skipping empty macro: No

Added: vendor/mandoc/dist/regress/mdoc/No/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,89 @@
+NO-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**No-punct** - punctuation after the normal macro
+
+# DESCRIPTION
+
+Leading punctuation:
+(b
+\[b
+| b
+. b
+, b
+; b
+: b
+? b
+! b
+) b
+] b
+
+Trailing punctuation:
+a (
+a \[
+a |
+a.
+a,
+a;
+a:
+a?
+a!
+a)
+a]
+
+Middle punctuation:
+a (b
+a \[b
+a | b
+a. b
+a, b
+a; b
+a: b
+a? b
+a! b
+a) b
+a] b
+
+Isolated punctuation:
+a (b
+a \[b
+a | b
+a . b
+a , b
+a ; b
+a : b
+a ? b
+a ! b
+a ) b
+a ] b
+
+Isolated trailing punctuation:
+a (
+a \[
+a |
+a .
+a ,
+a ;
+a :
+a ?
+a !
+a )
+a ]
+
+Multiple isolated punctuation:
+a (\[b
+a )] b
+
+Multiple punctuation:
+\[(arg)].
+
+Quoted:
+a . b Nm **bold**
+. b Nm
+.
+
+Missing blank:
+a.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/No/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: spacing.in,v 1.3 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NO-SPACING 1
+.Os
+.Sh NAME
+.Nm No-spacing
+.Nd spacing around the normal macro
+.Sh DESCRIPTION
+Text before
+.No and
+after the macro.
+Macros on the line
+.Op before
+.No and
+.Op after
+the macro.
+Macros
+.Em before No and Em after
+the macro on the same line.
+Punctuation before (
+.No and
+) after the macro.
+The macro
+.Op No in
+an enclosure.

Added: vendor/mandoc/dist/regress/mdoc/No/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+NO-SPACING(1)               General Commands Manual              NO-SPACING(1)
+
+NNAAMMEE
+     NNoo--ssppaacciinngg - spacing around the normal macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Text before and after the macro.  Macros on the line [before] and [after]
+     the macro.  Macros _b_e_f_o_r_e and _a_f_t_e_r the macro on the same line.
+     Punctuation before ( and ) after the macro.  The macro [in] an enclosure.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/No/spacing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/No/spacing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/No/spacing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+NO-SPACING(1) - General Commands Manual
+
+# NAME
+
+**No-spacing** - spacing around the normal macro
+
+# DESCRIPTION
+
+Text before
+and
+after the macro.
+Macros on the line
+\[before]
+and
+\[after]
+the macro.
+Macros
+*before* and *after*
+the macro on the same line.
+Punctuation before (
+and
+) after the macro.
+The macro
+\[in]
+an enclosure.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ns/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.5 2014/07/02 11:42:56 schwarze Exp $
+
+REGRESS_TARGETS	= position punct
+LINT_TARGETS	= position
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ns/position.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/position.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/position.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,36 @@
+.\" $OpenBSD: position.in,v 1.6 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NS-POSITION 1
+.Os
+.Sh NAME
+.Nm Ns-position
+.Nd effect of the position of the no space macro on the line
+.Sh DESCRIPTION
+At the beginning of a macro line:
+.Op before
+.Ns Op after
+.Pp
+After just a block closing macro:
+.Oo before
+.Oc Ns Op after
+.Pp
+After some macro and a block closing:
+.Oo before
+.No still before Oc Ns Op after
+.Pp
+In the middle of a macro line:
+.Oo before Oc Ns Op after
+.Pp
+After closing punctuation:
+.Oo before Oc : Ns Op after
+.Pp
+Before closing punctuation:
+.Oo before Oc Ns : Op after
+.Pp
+At the end of a macro line:
+.Oo before Oc Ns
+.Op after
+.Pp
+At the end of partial implicit:
+.Op before Ns
+.Op after

Added: vendor/mandoc/dist/regress/mdoc/Ns/position.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/position.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/position.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+NS-POSITION(1)              General Commands Manual             NS-POSITION(1)
+
+NNAAMMEE
+     NNss--ppoossiittiioonn - effect of the position of the no space macro on the line
+
+DDEESSCCRRIIPPTTIIOONN
+     At the beginning of a macro line: [before] [after]
+
+     After just a block closing macro: [before][after]
+
+     After some macro and a block closing: [before still before][after]
+
+     In the middle of a macro line: [before][after]
+
+     After closing punctuation: [before]:[after]
+
+     Before closing punctuation: [before]: [after]
+
+     At the end of a macro line: [before][after]
+
+     At the end of partial implicit: [before][after]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ns/position.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/position.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/position.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: position.in:11:2: WARNING: skipping no-space macro
+mandoc: position.in:28:15: WARNING: skipping no-space macro

Added: vendor/mandoc/dist/regress/mdoc/Ns/position.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/position.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/position.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+NS-POSITION(1) - General Commands Manual
+
+# NAME
+
+**Ns-position** - effect of the position of the no space macro on the line
+
+# DESCRIPTION
+
+At the beginning of a macro line:
+\[before]
+\[after]
+
+After just a block closing macro:
+\[before]\[after]
+
+After some macro and a block closing:
+\[before
+still before]\[after]
+
+In the middle of a macro line:
+\[before]\[after]
+
+After closing punctuation:
+\[before]:\[after]
+
+Before closing punctuation:
+\[before]: \[after]
+
+At the end of a macro line:
+\[before]\[after]
+
+At the end of partial implicit:
+\[before]\[after]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ns/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: punct.in,v 1.4 2017/07/04 14:53:25 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NS-PUNCT 1
+.Os
+.Sh NAME
+.Nm Ns-punct
+.Nd punctuation after the no space macro
+.Sh DESCRIPTION
+Normal words:
+.No no Ns ns No no
+Opening punctuation:
+.No no Ns "(" ns No no
+Closing punctuation:
+.No no "Ns" ns ")" No no

Added: vendor/mandoc/dist/regress/mdoc/Ns/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+NS-PUNCT(1)                 General Commands Manual                NS-PUNCT(1)
+
+NNAAMMEE
+     NNss--ppuunncctt - punctuation after the no space macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Normal words: nons no Opening punctuation: no(ns no Closing punctuation:
+     nons) no
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ns/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ns/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ns/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+NS-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Ns-punct** - punctuation after the no space macro
+
+# DESCRIPTION
+
+Normal words:
+nons no
+Opening punctuation:
+no(ns no
+Closing punctuation:
+nons) no
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Oo/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Oo/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Oo/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2012/07/07 14:10:55 schwarze Exp $
+
+REGRESS_TARGETS  = punct
+LINT_TARGETS	 = punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Oo/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Oo/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Oo/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+.\" $OpenBSD: punct.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OO-PUNCT 1
+.Os
+.Sh NAME
+.Nm Oo-punct
+.Nd punctuation handling by the Oo macro
+.Sh DESCRIPTION
+at the beginning:
+.Oo "(" z
+.Oo | z
+.Oo . z
+.Oc Oc "Sy" bold Oc
+.Pp
+in the middle:
+.Oo a "(" z
+.Oo a | z
+.Oo a . z
+.Oc Oc Oc
+.Pp
+at the end:
+.Oo Oo a (
+.Oc |
+.Oc
+.Pp
+missing blank:
+.Oo a.
+.Oc

Added: vendor/mandoc/dist/regress/mdoc/Oo/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Oo/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Oo/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+OO-PUNCT(1)                 General Commands Manual                OO-PUNCT(1)
+
+NNAAMMEE
+     OOoo--ppuunncctt - punctuation handling by the Oo macro
+
+DDEESSCCRRIIPPTTIIOONN
+     at the beginning: ([z [| z [. z]] bboolldd]
+
+     in the middle: [a (z [a | z [a. z]]]
+
+     at the end: [[a (] |]
+
+     missing blank: [a.]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Oo/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Oo/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Oo/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: punct.in:27:6: STYLE: no blank before trailing delimiter: Oo a.

Added: vendor/mandoc/dist/regress/mdoc/Oo/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Oo/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Oo/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+OO-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Oo-punct** - punctuation handling by the Oo macro
+
+# DESCRIPTION
+
+at the beginning:
+(\[z
+\[| z
+\[. z]] **bold**]
+
+in the middle:
+\[a (z
+\[a | z
+\[a. z]]]
+
+at the end:
+\[\[a (]
+|]
+
+missing blank:
+\[a.]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Op/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+# $OpenBSD: Makefile,v 1.3 2014/07/02 11:42:56 schwarze Exp $
+
+REGRESS_TARGETS	= break broken punct
+LINT_TARGETS	= break broken punct
+
+SKIP_GROFF	= break
+SKIP_ASCII	= break
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Op/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+.\" $OpenBSD: break.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OP-BREAK 1
+.Os
+.Sh NAME
+.Nm Op-break
+.Nd partial explicit block broken by partial implicit block
+.Sh DESCRIPTION
+before both
+.Op inside first Do inside both
+inside second
+.Dc
+after both
+.Pp
+0
+.Op 1 Op 12 Do 123
+3
+.Dc
+0
+.\" The following does not work yet:
+.ig
+.Pp
+0
+.Op 1 Op 12 Do 123 Do 1234
+34
+.Dc
+4
+.Dc
+0
+..

Added: vendor/mandoc/dist/regress/mdoc/Op/break.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/break.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/break.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: break.in:10:2: WARNING: blocks badly nested: Op breaks Do
+mandoc: break.in:16:7: WARNING: blocks badly nested: Op breaks Do
+mandoc: break.in:16:2: WARNING: blocks badly nested: Op breaks Do

Added: vendor/mandoc/dist/regress/mdoc/Op/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+OP-BREAK(1) - General Commands Manual
+
+# NAME
+
+**Op-break** - partial explicit block broken by partial implicit block
+
+# DESCRIPTION
+
+before both
+\[inside first "inside both]
+inside second"
+after both
+
+0
+\[1 \[12 "123]]
+3"
+0
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Op/broken.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/broken.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/broken.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: broken.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OP-BROKEN 1
+.Os
+.Sh NAME
+.Nm Op-broken
+.Nd partial implicit block broken by partial explicit block
+.Sh DESCRIPTION
+before both
+.Do inside first
+.Op inside both Dc inside second
+after both
+.Pp
+0
+.Do 1
+.Op 12 Op 123 Dc 23
+0
+.\" The following does not work yet, see mdoc_macro.c rev. 1.47.
+.ig
+.Pp
+0
+.Do 1 Do 12
+.Op 123 Op 1234 Dc 134 Dc 34
+0
+..

Added: vendor/mandoc/dist/regress/mdoc/Op/broken.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/broken.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/broken.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+OP-BROKEN(1)                General Commands Manual               OP-BROKEN(1)
+
+NNAAMMEE
+     OOpp--bbrrookkeenn - partial implicit block broken by partial explicit block
+
+DDEESSCCRRIIPPTTIIOONN
+     before both "inside first [inside both" inside second] after both
+
+     0 "1 [12 [123" 23]] 0
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Op/broken.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/broken.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/broken.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: broken.in:11:17: WARNING: blocks badly nested: Do breaks Op
+mandoc: broken.in:16:15: WARNING: blocks badly nested: Do breaks Op

Added: vendor/mandoc/dist/regress/mdoc/Op/broken.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/broken.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/broken.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+OP-BROKEN(1) - General Commands Manual
+
+# NAME
+
+**Op-broken** - partial implicit block broken by partial explicit block
+
+# DESCRIPTION
+
+before both
+"inside first
+\[inside both" inside second]
+after both
+
+0
+"1
+\[12 \[123" 23]]
+0
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Op/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+.\" $OpenBSD: punct.in,v 1.6 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OP-PUNCT 1
+.Os
+.Sh NAME
+.Nm Op-punct
+.Nd punctuation handling by the Op macro
+.Sh DESCRIPTION
+at the beginning:
+.Op "(" z
+.Op | z
+.Op . z
+.Pp
+in the middle:
+.Op a "(" z
+.Op a | z
+.Op a . z
+.Pp
+at the end:
+.Op a (
+.Op a |
+.Op a .
+.Pp
+punctuation only:
+.Op (
+.Op |
+.Op .
+.Pp
+more than one:
+.Op ( (
+.Op | |
+.Op . .
+.Pp
+Missing blank:
+.Op a.

Added: vendor/mandoc/dist/regress/mdoc/Op/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+OP-PUNCT(1)                 General Commands Manual                OP-PUNCT(1)
+
+NNAAMMEE
+     OOpp--ppuunncctt - punctuation handling by the Op macro
+
+DDEESSCCRRIIPPTTIIOONN
+     at the beginning: ([z] [| z] [. z]
+
+     in the middle: [a (z] [a | z] [a. z]
+
+     at the end: [a (] [a |] [a].
+
+     punctuation only: ([] [|] [].
+
+     more than one: (([] [| |] []..
+
+     Missing blank: [a.]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Op/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: punct.in:35:6: STYLE: no blank before trailing delimiter: Op a.

Added: vendor/mandoc/dist/regress/mdoc/Op/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Op/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Op/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+OP-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Op-punct** - punctuation handling by the Op macro
+
+# DESCRIPTION
+
+at the beginning:
+(\[z]
+\[| z]
+\[. z]
+
+in the middle:
+\[a (z]
+\[a | z]
+\[a. z]
+
+at the end:
+\[a (]
+\[a |]
+\[a].
+
+punctuation only:
+(\[]
+\[|]
+\[].
+
+more than one:
+((\[]
+\[| |]
+\[]..
+
+Missing blank:
+\[a.]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Os/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+# $OpenBSD: Makefile,v 1.2 2014/11/21 01:52:45 schwarze Exp $
+
+REGRESS_TARGETS	 = dupe late long missing
+LINT_TARGETS	 = dupe late missing
+
+SKIP_GROFF	 = long
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Os/dupe.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/dupe.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/dupe.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: dupe.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Os NetBSD
+.Dt OS-DUPE 1
+.Os FreeBSD
+.Sh NAME
+.Nm Os-dupe
+.Nd repeated operating system macros
+.Sh DESCRIPTION
+initial text
+.Os OpenBSD
+final text

Added: vendor/mandoc/dist/regress/mdoc/Os/dupe.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/dupe.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/dupe.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+OS-DUPE(1)                  General Commands Manual                 OS-DUPE(1)
+
+NNAAMMEE
+     OOss--dduuppee - repeated operating system macros
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Os/dupe.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/dupe.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/dupe.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+mandoc: dupe.in:3:5: STYLE: operating system explicitly specified: Os NetBSD (NetBSD)
+mandoc: dupe.in:2:5: STYLE: Mdocdate found: Dd $Mdocdate: (NetBSD)
+mandoc: dupe.in:4:2: WARNING: prologue macros out of order: Dt after Os
+mandoc: dupe.in:5:2: ERROR: duplicate prologue macro: Os
+mandoc: dupe.in:5:5: STYLE: operating system explicitly specified: Os FreeBSD (NetBSD)
+mandoc: dupe.in:2:5: STYLE: Mdocdate found: Dd $Mdocdate: (NetBSD)
+mandoc: dupe.in:11:2: ERROR: duplicate prologue macro: Os
+mandoc: dupe.in:11:5: STYLE: operating system explicitly specified: Os OpenBSD (NetBSD)
+mandoc: dupe.in: STYLE: RCS id missing: (NetBSD)

Added: vendor/mandoc/dist/regress/mdoc/Os/dupe.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/dupe.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/dupe.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+OS-DUPE(1) - General Commands Manual
+
+# NAME
+
+**Os-dupe** - repeated operating system macros
+
+# DESCRIPTION
+
+initial text
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Os/late.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/late.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/late.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: late.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OS-LATE 1
+.Sh NAME
+.Nm Os-late
+.Nd late operating system macro
+.Sh DESCRIPTION
+initial text
+.Os
+final text

Added: vendor/mandoc/dist/regress/mdoc/Os/late.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/late.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/late.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+OS-LATE(1)                  General Commands Manual                 OS-LATE(1)
+
+NNAAMMEE
+     OOss--llaattee - late operating system macro
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Os/late.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/late.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/late.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: late.in:9:2: WARNING: late prologue macro: Os

Added: vendor/mandoc/dist/regress/mdoc/Os/late.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/late.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/late.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+OS-LATE(1) - General Commands Manual
+
+# NAME
+
+**Os-late** - late operating system macro
+
+# DESCRIPTION
+
+initial text
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Os/long.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/long.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/long.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: long.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OS-LONG 1
+.Os 1234567890123456789012345678901234567890123456789012345678901234567890123456789
+.Sh NAME
+.Nm Os-long
+.Nd long operating system string
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Os/long.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/long.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/long.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+OS-LONG(1)                  General Commands Manual                 OS-LONG(1)
+
+NNAAMMEE
+     OOss--lloonngg - long operating system string
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+1234567890123456789012345678901234567890123456789012345678901234567890123456789
+                                 July 4, 2017
+1234567890123456789012345678901234567890123456789012345678901234567890123456789

Added: vendor/mandoc/dist/regress/mdoc/Os/long.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/long.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/long.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+OS-LONG(1) - General Commands Manual
+
+# NAME
+
+**Os-long** - long operating system string
+
+# DESCRIPTION
+
+some text
+
+1234567890123456789012345678901234567890123456789012345678901234567890123456789 - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Os/missing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/missing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/missing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+.\" $OpenBSD: missing.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OS-MISSING 1
+.Sh NAME
+.Nm Os-missing
+.Nd operating system macro missing in prologue
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Os/missing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/missing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/missing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+OS-MISSING(1)               General Commands Manual              OS-MISSING(1)
+
+NNAAMMEE
+     OOss--mmiissssiinngg - operating system macro missing in prologue
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+                                 July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Os/missing.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/missing.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/missing.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: missing.in: WARNING: missing Os macro, using ""

Added: vendor/mandoc/dist/regress/mdoc/Os/missing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Os/missing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Os/missing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+OS-MISSING(1) - General Commands Manual
+
+# NAME
+
+**Os-missing** - operating system macro missing in prologue
+
+# DESCRIPTION
+
+some text
+
+ \- July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ox/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ox/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ox/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.3 2012/07/18 16:55:54 schwarze Exp $
+
+REGRESS_TARGETS	 = keep
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ox/keep.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ox/keep.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ox/keep.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: keep.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt OX-KEEP 1
+.Os
+.Sh NAME
+.Nm Ox-keep
+.Nd interaction of unix variant macros and word keeps
+.Sh DESCRIPTION
+Because we use a keep,
+.Bk -words
+.Ox 4.9 must be at the beginning of a new line.
+.Ek

Added: vendor/mandoc/dist/regress/mdoc/Ox/keep.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ox/keep.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ox/keep.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+OX-KEEP(1)                  General Commands Manual                 OX-KEEP(1)
+
+NNAAMMEE
+     OOxx--kkeeeepp - interaction of unix variant macros and word keeps
+
+DDEESSCCRRIIPPTTIIOONN
+     Because we use a keep,
+     OpenBSD 4.9 must be at the beginning of a new line.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ox/keep.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ox/keep.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ox/keep.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+OX-KEEP(1) - General Commands Manual
+
+# NAME
+
+**Ox-keep** - interaction of unix variant macros and word keeps
+
+# DESCRIPTION
+
+Because we use a keep,
+OpenBSD 4.9 must be at the beginning of a new line.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Pa/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+# $OpenBSD: Makefile,v 1.4 2014/08/21 12:56:24 schwarze Exp $
+
+REGRESS_TARGETS	= font punct
+LINT_TARGETS	= punct
+
+# XXX The FILES target doesn't currently work.
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Pa/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt PA-FONT 1
+.Os
+.Sh NAME
+.Nm Pa-font
+.Nd changing fonts inside the path macro
+.Sh DESCRIPTION
+normal text
+.Pa emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Pa/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+PA-FONT(1)                  General Commands Manual                 PA-FONT(1)
+
+NNAAMMEE
+     PPaa--ffoonntt - changing fonts inside the path macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Pa/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+PA-FONT(1) - General Commands Manual
+
+# NAME
+
+**Pa-font** - changing fonts inside the path macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Pa/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,46 @@
+.\" $OpenBSD: punct.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt PA-PUNCT 1
+.Os
+.Sh NAME
+.Nm Pa-punct
+.Nd punctuation handling by the Pa macro
+.Sh DESCRIPTION
+closing punctuation
+.Pa a )
+only one
+.Pa )
+only more than one
+.Pa ) )
+middle
+.Pa a ) z
+start
+.Pa ) z
+dot
+.Pa . z
+comma
+.Pa , z
+semicolon
+.Pa ; z
+colon
+.Pa : z
+quest
+.Pa ? z
+excl
+.Pa ! z
+paren
+.Pa ) z
+bracket
+.Pa ] z
+bar
+.Pa | m
+op paren
+.Pa ( a
+op bracket
+.Pa [ a
+.Pp
+quoted punctuation:
+.Pa a "(" b "|" c ")" d "," "Sy" bold .
+.Pp
+missing blank:
+.Pa a.

Added: vendor/mandoc/dist/regress/mdoc/Pa/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+PA-PUNCT(1)                 General Commands Manual                PA-PUNCT(1)
+
+NNAAMMEE
+     PPaa--ppuunncctt - punctuation handling by the Pa macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation _a) only one _~) only more than one _~)) middle _a) _z
+     start _~) _z dot _~. _z comma _~, _z semicolon _~; _z colon _~: _z quest _~? _z excl
+     _~! _z paren _~) _z bracket _~] _z bar | _m op paren (_a op bracket [_a
+
+     quoted punctuation: _a (_b | _c) _d, bboolldd.
+
+     missing blank: _a_.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Pa/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: punct.in:46:6: STYLE: no blank before trailing delimiter: Pa a.

Added: vendor/mandoc/dist/regress/mdoc/Pa/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pa/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pa/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,48 @@
+PA-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Pa-punct** - punctuation handling by the Pa macro
+
+# DESCRIPTION
+
+closing punctuation
+*a*)
+only one
+*~*)
+only more than one
+*~*))
+middle
+*a*) *z*
+start
+*~*) *z*
+dot
+*~*. *z*
+comma
+*~*, *z*
+semicolon
+*~*; *z*
+colon
+*~*: *z*
+quest
+*~*? *z*
+excl
+*~*! *z*
+paren
+*~*) *z*
+bracket
+*~*] *z*
+bar
+| *m*
+op paren
+(*a*
+op bracket
+\[*a*
+
+quoted punctuation:
+*a* (*b* | *c*) *d*, **bold**.
+
+missing blank:
+*a.*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Pf/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pf/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pf/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2014/11/30 05:28:00 schwarze Exp $
+
+REGRESS_TARGETS	= spacing
+LINT_TARGETS	= spacing
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Pf/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pf/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pf/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: spacing.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt PF-SPACING 1
+.Os
+.Sh NAME
+.Nm Pf-spacing
+.Nd spacing around the prefix macro
+.Sh DESCRIPTION
+Closing punctuation goes
+.Pf . right .
+But
+.Pf . . double
+prefixes don't work.
+Opening punctuation goes
+.Pf ( left .
+But again, prefix
+.Pf ( ) pairs
+don't work.
+Even normal text gets
+.Pf pre fixed .
+The first
+.Pf Ar gument
+is not parsed.
+Nothing can be
+.Pf prefixed
+to the next line.
+Trailing punctuation still counts as
+.Em eos Pf .
+.Po But it does not fall out of enclosures Pf . Pc
+.Pp
+It makes no sense at the very
+.Em end Pf

Added: vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+PF-SPACING(1)               General Commands Manual              PF-SPACING(1)
+
+NNAAMMEE
+     PPff--ssppaacciinngg - spacing around the prefix macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Closing punctuation goes .right.  But .. double prefixes don't work.
+     Opening punctuation goes (left.  But again, prefix () pairs don't work.
+     Even normal text gets prefixed.  The first Argument is not parsed.
+     Nothing can be prefixed to the next line.  Trailing punctuation still
+     counts as _e_o_s .  (But it does not fall out of enclosures .)
+
+     It makes no sense at the very _e_n_d
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: spacing.in:25:2: WARNING: nothing follows prefix: Pf prefixed
+mandoc: spacing.in:28:9: WARNING: nothing follows prefix: Pf .
+mandoc: spacing.in:32:9: WARNING: nothing follows prefix: Pf at eol

Added: vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pf/spacing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+PF-SPACING(1) - General Commands Manual
+
+# NAME
+
+**Pf-spacing** - spacing around the prefix macro
+
+# DESCRIPTION
+
+Closing punctuation goes
+.right.
+But
+.. double
+prefixes don't work.
+Opening punctuation goes
+(left.
+But again, prefix
+() pairs
+don't work.
+Even normal text gets
+prefixed.
+The first
+Argument
+is not parsed.
+Nothing can be
+prefixed
+to the next line.
+Trailing punctuation still counts as
+*eos* .
+(But it does not fall out of enclosures .)
+
+It makes no sense at the very
+*end*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Pp/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pp/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pp/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2015/02/04 19:11:17 schwarze Exp $
+
+REGRESS_TARGETS	 = arg
+LINT_TARGETS	 = arg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Pp/arg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pp/arg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pp/arg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: arg.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt PP-ARG 1
+.Os
+.Sh NAME
+.Nm Pp-arg
+.Nd paragraph macro with arguments
+.Sh DESCRIPTION
+line 1
+.Pp drop this
+line 2
+.br drop this
+line 3
+.sp 1v drop this
+line 4

Added: vendor/mandoc/dist/regress/mdoc/Pp/arg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pp/arg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pp/arg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+PP-ARG(1)                   General Commands Manual                  PP-ARG(1)
+
+NNAAMMEE
+     PPpp--aarrgg - paragraph macro with arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     line 1
+
+     line 2
+     line 3
+
+     line 4
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Pp/arg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pp/arg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pp/arg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: arg.in:12:5: ERROR: skipping all arguments: br drop this
+mandoc: arg.in:14:8: ERROR: skipping excess arguments: sp ... drop this
+mandoc: arg.in:10:2: ERROR: skipping all arguments: Pp drop

Added: vendor/mandoc/dist/regress/mdoc/Pp/arg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Pp/arg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Pp/arg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+PP-ARG(1) - General Commands Manual
+
+# NAME
+
+**Pp-arg** - paragraph macro with arguments
+
+# DESCRIPTION
+
+line 1
+
+line 2  
+line 3
+
+line 4
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Qq/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Qq/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Qq/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2011/12/04 03:09:25 schwarze Exp $
+
+REGRESS_TARGETS	 = empty
+LINT_TARGETS	 = empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Qq/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Qq/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Qq/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: empty.in,v 1.5 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt QQ-EMPTY 1
+.Os
+.Sh NAME
+.Nm Qq-empty
+.Nd empty implicit enclosure macros
+.Sh DESCRIPTION
+An empty
+.Qq
+and a full
+.Qq "(" user at host)
+quotation.
+And another
+.Qo "(" full) Qc one "Sy" bold .

Added: vendor/mandoc/dist/regress/mdoc/Qq/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Qq/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Qq/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+QQ-EMPTY(1)                 General Commands Manual                QQ-EMPTY(1)
+
+NNAAMMEE
+     QQqq--eemmppttyy - empty implicit enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     An empty "" and a full ("user at host)" quotation.  And another ("full)" one
+     bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Qq/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Qq/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Qq/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:12:18: STYLE: no blank before trailing delimiter: Qq user at host)
+mandoc: empty.in:15:13: STYLE: no blank before trailing delimiter: Qo full)

Added: vendor/mandoc/dist/regress/mdoc/Qq/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Qq/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Qq/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+QQ-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Qq-empty** - empty implicit enclosure macros
+
+# DESCRIPTION
+
+An empty
+""
+and a full
+("user at host)"
+quotation.
+And another
+("full)" one **bold**.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Rs/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+# $OpenBSD: Makefile,v 1.7 2015/02/04 18:03:28 schwarze Exp $
+
+REGRESS_TARGETS	 = allch args break empty three_authors
+UTF8_TARGETS	 = allch break empty three_authors
+LINT_TARGETS	 = allch args empty
+
+# groff-1.22.3 defect:
+# - arguments after .Rs cause the macro to be ignored
+
+SKIP_GROFF	 = args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Rs/allch.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/allch.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/allch.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+.\" $OpenBSD: allch.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RS-ALLCH 1
+.Os
+.Sh NAME
+.Nm Rs-allch
+.Nd reference block using all supported child macros
+.Sh DESCRIPTION
+reference on the same line:
+.Rs
+.%A author name
+.%T title of article
+.%B book title
+.%I issuer name
+some
+.%J journal name
+.%R report name
+.%N number of journal
+.%V volume number
+.Em bogus
+text
+.%U "uniform resource locator"
+.%P page number
+.%Q institutional author
+.%C city name
+.%D date of publication
+.%O optional information
+.Re
+.Sh SEE ALSO
+reference after a blank line:
+.Rs
+.%A author name
+.%T title of article
+.%B book title
+.%I issuer name
+some
+.Em bogus
+.%J journal name
+.%R report name
+.%N number of journal
+.%V volume number
+text
+.%U "uniform resource locator"
+.%P page number
+.%Q institutional author
+.%C city name
+.%D date of publication
+.%O optional information
+.Re

Added: vendor/mandoc/dist/regress/mdoc/Rs/allch.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/allch.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/allch.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+RS-ALLCH(1)                 General Commands Manual                RS-ALLCH(1)
+
+NNAAMMEE
+     RRss--aallllcchh - reference block using all supported child macros
+
+DDEESSCCRRIIPPTTIIOONN
+     reference on the same line: some _b_o_g_u_s text author name, "title of
+     article", _b_o_o_k _t_i_t_l_e, _i_s_s_u_e_r _n_a_m_e, _j_o_u_r_n_a_l _n_a_m_e, report name, number of
+     journal, volume number, uniform resource locator, page number,
+     institutional author, city name, date of publication, optional
+     information.
+
+SSEEEE AALLSSOO
+     reference after a blank line:
+
+     some _b_o_g_u_s text author name, "title of article", _b_o_o_k _t_i_t_l_e, _i_s_s_u_e_r _n_a_m_e,
+     _j_o_u_r_n_a_l _n_a_m_e, report name, number of journal, volume number, uniform
+     resource locator, page number, institutional author, city name, date of
+     publication, optional information.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/allch.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/allch.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/allch.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+mandoc: allch.in:15:1: WARNING: invalid content in Rs block: text
+mandoc: allch.in:20:2: WARNING: invalid content in Rs block: Em
+mandoc: allch.in:21:1: WARNING: invalid content in Rs block: text
+mandoc: allch.in:36:1: WARNING: invalid content in Rs block: text
+mandoc: allch.in:37:2: WARNING: invalid content in Rs block: Em
+mandoc: allch.in:42:1: WARNING: invalid content in Rs block: text

Added: vendor/mandoc/dist/regress/mdoc/Rs/allch.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/allch.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/allch.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,50 @@
+RS-ALLCH(1) - General Commands Manual
+
+# NAME
+
+**Rs-allch** - reference block using all supported child macros
+
+# DESCRIPTION
+
+reference on the same line:
+some
+*bogus*
+text
+author name,
+"title of article",
+*book title*,
+*issuer name*,
+*journal name*,
+report name,
+number of journal,
+volume number,
+[uniform resource locator](uniform resource locator),
+page number,
+institutional author,
+city name,
+date of publication,
+optional information.
+
+# SEE ALSO
+
+reference after a blank line:
+
+some
+*bogus*
+text
+author name,
+"title of article",
+*book title*,
+*issuer name*,
+*journal name*,
+report name,
+number of journal,
+volume number,
+[uniform resource locator](uniform resource locator),
+page number,
+institutional author,
+city name,
+date of publication,
+optional information.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Rs/allch.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/allch.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/allch.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+RS-ALLCH(1)                 General Commands Manual                RS-ALLCH(1)
+
+NNAAMMEE
+     RRss--aallllcchh – reference block using all supported child macros
+
+DDEESSCCRRIIPPTTIIOONN
+     reference on the same line: some _b_o_g_u_s text author name, “title of
+     article”, _b_o_o_k _t_i_t_l_e, _i_s_s_u_e_r _n_a_m_e, _j_o_u_r_n_a_l _n_a_m_e, report name, number of
+     journal, volume number, uniform resource locator, page number,
+     institutional author, city name, date of publication, optional
+     information.
+
+SSEEEE AALLSSOO
+     reference after a blank line:
+
+     some _b_o_g_u_s text author name, “title of article”, _b_o_o_k _t_i_t_l_e, _i_s_s_u_e_r _n_a_m_e,
+     _j_o_u_r_n_a_l _n_a_m_e, report name, number of journal, volume number, uniform
+     resource locator, page number, institutional author, city name, date of
+     publication, optional information.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/args.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RS-ARGS 1
+.Os
+.Sh NAME
+.Nm Rs-args
+.Nd arguments on a reference block header line
+.Sh SEE ALSO
+initial text
+.Rs bogus
+.%A author name
+.%B book title
+.Re
+middle text
+.Rs Sy bogus
+.%A author name
+.%B book title
+.Re
+final text

Added: vendor/mandoc/dist/regress/mdoc/Rs/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+RS-ARGS(1)                  General Commands Manual                 RS-ARGS(1)
+
+NNAAMMEE
+     RRss--aarrggss - arguments on a reference block header line
+
+SSEEEE AALLSSOO
+     initial text
+
+     author name, _b_o_o_k _t_i_t_l_e.  middle text
+
+     author name, _b_o_o_k _t_i_t_l_e.  final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: args.in:10:5: ERROR: skipping all arguments: Rs bogus
+mandoc: args.in:15:5: ERROR: skipping all arguments: Rs Sy

Added: vendor/mandoc/dist/regress/mdoc/Rs/args.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/args.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/args.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+RS-ARGS(1) - General Commands Manual
+
+# NAME
+
+**Rs-args** - arguments on a reference block header line
+
+# SEE ALSO
+
+initial text
+
+author name,
+*book title*.
+middle text
+
+author name,
+*book title*.
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Rs/break.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/break.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/break.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+.\" $OpenBSD: break.in,v 1.5 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RS-BREAK 1
+.Os
+.Sh NAME
+.Nm Rs-break
+.Nd line break before reference start
+.Sh DESCRIPTION
+reference on the same line:
+.Rs
+.%A author
+.%J journal
+.%N 42
+.Re
+.Sh SEE ALSO
+reference after a blank line:
+.Rs
+.%A author
+.%J journal
+.%N 42
+.Re
+.Sh SEE Em ALSO
+reference after a blank line:
+.Rs
+.%A author
+.%J journal
+.%N 42
+.Re

Added: vendor/mandoc/dist/regress/mdoc/Rs/break.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/break.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/break.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+RS-BREAK(1)                 General Commands Manual                RS-BREAK(1)
+
+NNAAMMEE
+     RRss--bbrreeaakk - line break before reference start
+
+DDEESSCCRRIIPPTTIIOONN
+     reference on the same line: author, _j_o_u_r_n_a_l, 42.
+
+SSEEEE AALLSSOO
+     reference after a blank line:
+
+     author, _j_o_u_r_n_a_l, 42.
+
+SSEEEE _A_L_S_O
+     reference after a blank line:
+
+     author, _j_o_u_r_n_a_l, 42.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/break.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/break.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/break.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+RS-BREAK(1) - General Commands Manual
+
+# NAME
+
+**Rs-break** - line break before reference start
+
+# DESCRIPTION
+
+reference on the same line:
+author,
+*journal*,
+42\.
+
+# SEE ALSO
+
+reference after a blank line:
+
+author,
+*journal*,
+42\.
+
+# SEE *ALSO*
+
+reference after a blank line:
+
+author,
+*journal*,
+42\.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Rs/break.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/break.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/break.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+RS-BREAK(1)                 General Commands Manual                RS-BREAK(1)
+
+NNAAMMEE
+     RRss--bbrreeaakk – line break before reference start
+
+DDEESSCCRRIIPPTTIIOONN
+     reference on the same line: author, _j_o_u_r_n_a_l, 42.
+
+SSEEEE AALLSSOO
+     reference after a blank line:
+
+     author, _j_o_u_r_n_a_l, 42.
+
+SSEEEE _A_L_S_O
+     reference after a blank line:
+
+     author, _j_o_u_r_n_a_l, 42.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RS-EMPTY 1
+.Os
+.Sh NAME
+.Nm Rs-empty
+.Nd empty reference blocks
+.Sh DESCRIPTION
+initial text
+.Rs
+.Re
+final text
+.Sh SEE ALSO
+initial text
+.Rs
+.Re
+final text

Added: vendor/mandoc/dist/regress/mdoc/Rs/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+RS-EMPTY(1)                 General Commands Manual                RS-EMPTY(1)
+
+NNAAMMEE
+     RRss--eemmppttyy - empty reference blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text final text
+
+SSEEEE AALLSSOO
+     initial text
+
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:10:2: WARNING: empty reference block: Rs
+mandoc: empty.in:15:2: WARNING: empty reference block: Rs

Added: vendor/mandoc/dist/regress/mdoc/Rs/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+RS-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Rs-empty** - empty reference blocks
+
+# DESCRIPTION
+
+initial text
+final text
+
+# SEE ALSO
+
+initial text
+
+final text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Rs/empty.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/empty.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/empty.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+RS-EMPTY(1)                 General Commands Manual                RS-EMPTY(1)
+
+NNAAMMEE
+     RRss--eemmppttyy – empty reference blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text final text
+
+SSEEEE AALLSSOO
+     initial text
+
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/three_authors.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/three_authors.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/three_authors.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: three_authors.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RS-THREE_AUTHORS 1
+.Os
+.Sh NAME
+.Nm Rs-three_authors
+.Nd listing three authors in a reference block
+.Sh AUTHORS
+.Rs
+.%A kristaps
+.%A joerg
+.%A ingo
+.%T mandoc
+.Re

Added: vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+RS-THREE_AUTHORS(1)         General Commands Manual        RS-THREE_AUTHORS(1)
+
+NNAAMMEE
+     RRss--tthhrreeee__aauutthhoorrss - listing three authors in a reference block
+
+AAUUTTHHOORRSS
+     kristaps, joerg, and ingo, _m_a_n_d_o_c.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+RS-THREE\_AUTHORS(1) - General Commands Manual
+
+# NAME
+
+**Rs-three\_authors** - listing three authors in a reference block
+
+# AUTHORS
+
+kristaps,
+joerg, and
+ingo,
+*mandoc*.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_utf8
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_utf8	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rs/three_authors.out_utf8	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+RS-THREE_AUTHORS(1)         General Commands Manual        RS-THREE_AUTHORS(1)
+
+NNAAMMEE
+     RRss--tthhrreeee__aauutthhoorrss – listing three authors in a reference block
+
+AAUUTTHHOORRSS
+     kristaps, joerg, and ingo, _m_a_n_d_o_c.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rv/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+# $OpenBSD: Makefile,v 1.1 2014/08/14 02:00:53 schwarze Exp $
+
+REGRESS_TARGETS	 = args noname nostd
+LINT_TARGETS	 = noname nostd
+
+# groff-1.22.2 defect:
+# - .Rv without -std produces no output
+
+SKIP_GROFF	 = nostd
+
+# ugly name section output, do not test this for now
+
+SKIP_MARKDOWN	?= noname
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Rv/args.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RV-ARGS 3
+.Os
+.Sh NAME
+.Nm Rv-args
+.Nd arguments to the return value macro
+.Sh RETURN VALUES
+no arguments:
+.Rv -std
+.Pp
+one argument:
+.Rv -std one
+.Pp
+two arguments:
+.Rv -std one two

Added: vendor/mandoc/dist/regress/mdoc/Rv/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+RV-ARGS(3)                 Library Functions Manual                 RV-ARGS(3)
+
+NNAAMMEE
+     RRvv--aarrggss - arguments to the return value macro
+
+RREETTUURRNN VVAALLUUEESS
+     no arguments:
+     Upon successful completion, the value 0 is returned; otherwise the
+     value -1 is returned and the global variable _e_r_r_n_o is set to indicate the
+     error.
+
+     one argument:
+     The oonnee() function returns the value 0 if successful; otherwise the
+     value -1 is returned and the global variable _e_r_r_n_o is set to indicate the
+     error.
+
+     two arguments:
+     The oonnee() and ttwwoo() functions return the value 0 if successful; otherwise
+     the value -1 is returned and the global variable _e_r_r_n_o is set to indicate
+     the error.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rv/args.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/args.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/args.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+RV-ARGS(3) - Library Functions Manual
+
+# NAME
+
+**Rv-args** - arguments to the return value macro
+
+# RETURN VALUES
+
+no arguments:
+Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable *errno* is set to indicate the error.
+
+one argument:
+The **one**() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable *errno* is set to indicate the error.
+
+two arguments:
+The **one**() and **two**() functions return the value 0 if successful; otherwise the value -1 is returned and the global variable *errno* is set to indicate the error.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Rv/noname.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/noname.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/noname.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: noname.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RV-NONAME 3
+.Os
+.Sh NAME
+.Nm
+.Nd return value macro without an available name
+.Sh RETURN VALUES
+no arguments:
+.Rv -std
+.Pp
+one argument:
+.Rv -std one
+.Pp
+two arguments:
+.Rv -std one two

Added: vendor/mandoc/dist/regress/mdoc/Rv/noname.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/noname.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/noname.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+RV-NONAME(3)               Library Functions Manual               RV-NONAME(3)
+
+NNAAMMEE
+     - return value macro without an available name
+
+RREETTUURRNN VVAALLUUEESS
+     no arguments:
+     Upon successful completion, the value 0 is returned; otherwise the
+     value -1 is returned and the global variable _e_r_r_n_o is set to indicate the
+     error.
+
+     one argument:
+     The oonnee() function returns the value 0 if successful; otherwise the
+     value -1 is returned and the global variable _e_r_r_n_o is set to indicate the
+     error.
+
+     two arguments:
+     The oonnee() and ttwwoo() functions return the value 0 if successful; otherwise
+     the value -1 is returned and the global variable _e_r_r_n_o is set to indicate
+     the error.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rv/noname.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/noname.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/noname.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noname.in:6:2: ERROR: missing manual name, using "": Nm

Added: vendor/mandoc/dist/regress/mdoc/Rv/nostd.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/nostd.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/nostd.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: nostd.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RV-NOSTD 3
+.Os
+.Sh NAME
+.Nm Rv-nostd
+.Nd return value macros without -std arguments
+.Sh RETURN VALUES
+no arguments:
+.Rv
+.Pp
+one argument:
+.Rv one
+.Pp
+two arguments:
+.Rv one two

Added: vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+RV-NOSTD(3)                Library Functions Manual                RV-NOSTD(3)
+
+NNAAMMEE
+     RRvv--nnoossttdd - return value macros without -std arguments
+
+RREETTUURRNN VVAALLUUEESS
+     no arguments:
+     Upon successful completion, the value 0 is returned; otherwise the
+     value -1 is returned and the global variable _e_r_r_n_o is set to indicate the
+     error.
+
+     one argument:
+     The oonnee() function returns the value 0 if successful; otherwise the
+     value -1 is returned and the global variable _e_r_r_n_o is set to indicate the
+     error.
+
+     two arguments:
+     The oonnee() and ttwwoo() functions return the value 0 if successful; otherwise
+     the value -1 is returned and the global variable _e_r_r_n_o is set to indicate
+     the error.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: nostd.in:10:2: WARNING: missing -std argument, adding it: Rv
+mandoc: nostd.in:13:2: WARNING: missing -std argument, adding it: Rv
+mandoc: nostd.in:16:2: WARNING: missing -std argument, adding it: Rv

Added: vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Rv/nostd.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+RV-NOSTD(3) - Library Functions Manual
+
+# NAME
+
+**Rv-nostd** - return value macros without -std arguments
+
+# RETURN VALUES
+
+no arguments:
+Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable *errno* is set to indicate the error.
+
+one argument:
+The **one**() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable *errno* is set to indicate the error.
+
+two arguments:
+The **one**() and **two**() functions return the value 0 if successful; otherwise the value -1 is returned and the global variable *errno* is set to indicate the error.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+# $OpenBSD: Makefile,v 1.7 2017/01/08 00:10:22 schwarze Exp $
+
+REGRESS_TARGETS	 = badNAME before empty emptyNAME first nohead order
+REGRESS_TARGETS	+= orderNAME parbefore parborder punctNAME subbefore
+LINT_TARGETS	 = badNAME before empty emptyNAME first nohead order
+LINT_TARGETS	+= orderNAME parbefore parborder punctNAME subbefore
+
+# groff-1.22.3 defects:
+# - .Pp before .Sh NAME causes a blank line before the header line
+# - .Ss before .Sh NAME puts the subsection header before the header line
+# - missing .Sh NAME causes loss of the header and footer lines
+# - .Sh DESCRIPTION Xo aborts the parser
+
+SKIP_GROFF	= parbefore subbefore first empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Sh/badNAME.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/badNAME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/badNAME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: badNAME.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-BADNAME 1
+.Os
+.Sh NAME
+.Em bad NAME section
+.Nm Sh-badNAME
+.Sh DESCRIPTION
+The description appears before the name and is not marked up with Nd.

Added: vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SH-BADNAME(1)               General Commands Manual              SH-BADNAME(1)
+
+NNAAMMEE
+     _b_a_d _N_A_M_E _s_e_c_t_i_o_n SShh--bbaaddNNAAMMEE
+
+DDEESSCCRRIIPPTTIIOONN
+     The description appears before the name and is not marked up with Nd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badNAME.in:6:2: WARNING: bad NAME section content: Em
+mandoc: badNAME.in:5:2: WARNING: NAME section without description

Added: vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/badNAME.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+SH-BADNAME(1) - General Commands Manual
+
+# NAME
+
+*bad NAME section*
+**Sh-badNAME**
+
+# DESCRIPTION
+
+The description appears before the name and is not marked up with Nd.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/before.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/before.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/before.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: before.in,v 1.5 2017/07/28 12:37:51 schwarze Exp $
+.Dd $Mdocdate: July 28 2017 $
+.Dt SH-BEFORE 1
+.Os
+Plain text and
+.Em a macro
+before the first section header.
+.Sh NAME
+.Nm Sh-before
+.Nd content before the first section header
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Sh/before.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/before.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/before.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+SH-BEFORE(1)                General Commands Manual               SH-BEFORE(1)
+
+Plain text and _a _m_a_c_r_o before the first section header.
+
+NNAAMMEE
+     SShh--bbeeffoorree - content before the first section header
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 28, 2017                         OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/before.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/before.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/before.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: before.in:5:1: WARNING: content before first section header: text

Added: vendor/mandoc/dist/regress/mdoc/Sh/before.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/before.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/before.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+SH-BEFORE(1) - General Commands Manual
+
+Plain text and
+*a macro*
+before the first section header.
+
+# NAME
+
+**Sh-before** - content before the first section header
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 28, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-EMPTY 1
+.Os
+.Sh NAME
+.Nm Sh-empty
+.Nd empty sections
+.Sh SYNOPSIS
+.Sh DESCRIPTION Xo
+.Sh BUGS
+Quite some.

Added: vendor/mandoc/dist/regress/mdoc/Sh/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+SH-EMPTY(1)                 General Commands Manual                SH-EMPTY(1)
+
+NNAAMMEE
+     SShh--eemmppttyy - empty sections
+
+SSYYNNOOPPSSIISS
+DDEESSCCRRIIPPTTIIOONN
+BBUUGGSS
+     Quite some.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: empty.in:10:2: ERROR: inserting missing end of block: Sh breaks Xo

Added: vendor/mandoc/dist/regress/mdoc/Sh/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+SH-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Sh-empty** - empty sections
+
+# SYNOPSIS
+
+# DESCRIPTION
+
+# BUGS
+
+Quite some.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+.\" $OpenBSD: emptyNAME.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-EMPTYNAME 1
+.Os
+.Sh NAME
+.Sh DESCRIPTION
+The NAME section is empty.

Added: vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+SH-EMPTYNAME(1)             General Commands Manual            SH-EMPTYNAME(1)
+
+NNAAMMEE
+DDEESSCCRRIIPPTTIIOONN
+     The NAME section is empty.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: emptyNAME.in:5:2: WARNING: NAME section without Nm before Nd
+mandoc: emptyNAME.in:5:2: WARNING: NAME section without description

Added: vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/emptyNAME.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SH-EMPTYNAME(1) - General Commands Manual
+
+# NAME
+
+# DESCRIPTION
+
+The NAME section is empty.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/first.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/first.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/first.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+.\" $OpenBSD: first.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-FIRST 1
+.Os
+.Sh DESCRIPTION
+The first section is not a NAME section.

Added: vendor/mandoc/dist/regress/mdoc/Sh/first.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/first.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/first.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+SH-FIRST(1)                 General Commands Manual                SH-FIRST(1)
+
+DDEESSCCRRIIPPTTIIOONN
+     The first section is not a NAME section.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/first.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/first.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/first.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: first.in:5:2: WARNING: first section is not "NAME": Sh DESCRIPTION

Added: vendor/mandoc/dist/regress/mdoc/Sh/first.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/first.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/first.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+SH-FIRST(1) - General Commands Manual
+
+# DESCRIPTION
+
+The first section is not a NAME section.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/nohead.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/nohead.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/nohead.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: nohead.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-NOHEAD 1
+.Os
+.Sh NAME
+.Nm Sh-nohead
+.Nd sections without header lines
+.Sh DESCRIPTION
+empty section header:
+.Sh
+empty subsection header:
+.Ss
+text

Added: vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SH-NOHEAD(1)                General Commands Manual               SH-NOHEAD(1)
+
+NNAAMMEE
+     SShh--nnoohheeaadd - sections without header lines
+
+DDEESSCCRRIIPPTTIIOONN
+     empty section header: empty subsection header: text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: nohead.in:10:2: WARNING: skipping empty macro: Sh
+mandoc: nohead.in:12:2: WARNING: skipping empty macro: Ss

Added: vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/nohead.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SH-NOHEAD(1) - General Commands Manual
+
+# NAME
+
+**Sh-nohead** - sections without header lines
+
+# DESCRIPTION
+
+empty section header:
+empty subsection header:
+text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/order.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/order.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/order.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: order.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-ORDER 1
+.Os
+.Sh NAME
+.Nm Sh-order
+.Nd sections out of conventional order
+.Sh DESCRIPTION
+some text
+.Sh SYNOPSIS
+.Sh SYNOPSIS
+.Sh ERRORS
+.Vt int errno

Added: vendor/mandoc/dist/regress/mdoc/Sh/order.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/order.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/order.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+SH-ORDER(1)                 General Commands Manual                SH-ORDER(1)
+
+NNAAMMEE
+     SShh--oorrddeerr - sections out of conventional order
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+SSYYNNOOPPSSIISS
+SSYYNNOOPPSSIISS
+EERRRROORRSS
+     _i_n_t _e_r_r_n_o
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/order.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/order.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/order.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: order.in:10:2: WARNING: sections out of conventional order: Sh SYNOPSIS
+mandoc: order.in:11:2: WARNING: duplicate section title: Sh SYNOPSIS
+mandoc: order.in:12:2: WARNING: unexpected section: Sh ERRORS for 2, 3, 4, 9 only

Added: vendor/mandoc/dist/regress/mdoc/Sh/order.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/order.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/order.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+SH-ORDER(1) - General Commands Manual
+
+# NAME
+
+**Sh-order** - sections out of conventional order
+
+# DESCRIPTION
+
+some text
+
+# SYNOPSIS
+
+# SYNOPSIS
+
+# ERRORS
+
+*int errno*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: orderNAME.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-ORDERNAME 1
+.Os
+.Sh NAME
+.Nd name after description in NAME section
+.Ss subsection
+.Nm Sh-orderNAME
+.Sh DESCRIPTION
+The order of Nm and Nd is wrong in the NAME section.

Added: vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+SH-ORDERNAME(1)             General Commands Manual            SH-ORDERNAME(1)
+
+NNAAMMEE
+     - name after description in NAME section
+
+   ssuubbsseeccttiioonn
+     SShh--oorrddeerrNNAAMMEE
+
+DDEESSCCRRIIPPTTIIOONN
+     The order of Nm and Nd is wrong in the NAME section.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: orderNAME.in:6:2: WARNING: description not at the end of NAME
+mandoc: orderNAME.in:5:2: WARNING: NAME section without Nm before Nd

Added: vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/orderNAME.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+SH-ORDERNAME(1) - General Commands Manual
+
+# NAME
+
+\- name after description in NAME section
+
+## subsection
+
+**Sh-orderNAME**
+
+# DESCRIPTION
+
+The order of Nm and Nd is wrong in the NAME section.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/parbefore.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parbefore.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parbefore.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: parbefore.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-PARBEFORE 1
+.Os
+.Pp
+.Sh NAME
+.Nm Sh-parbefore
+.Nd paragraph macro before the first section header
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SH-PARBEFORE(1)             General Commands Manual            SH-PARBEFORE(1)
+
+NNAAMMEE
+     SShh--ppaarrbbeeffoorree - paragraph macro before the first section header
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: parbefore.in:5:2: WARNING: skipping paragraph macro: Pp before Sh

Added: vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parbefore.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+SH-PARBEFORE(1) - General Commands Manual
+
+# NAME
+
+**Sh-parbefore** - paragraph macro before the first section header
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/parborder.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parborder.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parborder.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: parborder.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-PARBORDER 1
+.Os
+.Sh NAME
+.Nm Sh-parborder
+.Nd paragraph macros at the beginning and end of sections
+.Sh DESCRIPTION
+.Pp
+descriptive text
+.Pp
+.Sh EXAMPLES
+.Pp
+example text
+.Pp
+.Ss Subsection
+.Pp
+subsection text
+.Pp
+.Ss Another subsection
+more subsection text
+.Pp

Added: vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+SH-PARBORDER(1)             General Commands Manual            SH-PARBORDER(1)
+
+NNAAMMEE
+     SShh--ppaarrbboorrddeerr - paragraph macros at the beginning and end of sections
+
+DDEESSCCRRIIPPTTIIOONN
+     descriptive text
+
+EEXXAAMMPPLLEESS
+     example text
+
+   SSuubbsseeccttiioonn
+     subsection text
+
+   AAnnootthheerr ssuubbsseeccttiioonn
+     more subsection text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+mandoc: parborder.in:9:2: WARNING: skipping paragraph macro: Pp after Sh
+mandoc: parborder.in:11:2: WARNING: skipping paragraph macro: Pp at the end of Sh
+mandoc: parborder.in:13:2: WARNING: skipping paragraph macro: Pp after Sh
+mandoc: parborder.in:17:2: WARNING: skipping paragraph macro: Pp after Ss
+mandoc: parborder.in:19:2: WARNING: skipping paragraph macro: Pp at the end of Ss
+mandoc: parborder.in:15:2: WARNING: skipping paragraph macro: Pp before Ss
+mandoc: parborder.in:22:2: WARNING: skipping paragraph macro: Pp at the end of Ss

Added: vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/parborder.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+SH-PARBORDER(1) - General Commands Manual
+
+# NAME
+
+**Sh-parborder** - paragraph macros at the beginning and end of sections
+
+# DESCRIPTION
+
+descriptive text
+
+# EXAMPLES
+
+example text
+
+## Subsection
+
+subsection text
+
+## Another subsection
+
+more subsection text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: punctNAME.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SH-PUNCTNAME 1
+.Os
+.Sh NAME
+.Nm Sh-punctNAME
+.Nm second_name ;
+.Nm third_name ,
+.Nd wrong punctuation in the NAME section
+.Sh DESCRIPTION
+One comma is missing, and one is misplaced.

Added: vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+SH-PUNCTNAME(1)             General Commands Manual            SH-PUNCTNAME(1)
+
+NNAAMMEE
+     SShh--ppuunnccttNNAAMMEE sseeccoonndd__nnaammee; tthhiirrdd__nnaammee, - wrong punctuation in the NAME
+     section
+
+DDEESSCCRRIIPPTTIIOONN
+     One comma is missing, and one is misplaced.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: punctNAME.in:7:2: WARNING: missing comma before name: Nm second_name
+mandoc: punctNAME.in:7:17: WARNING: bad NAME section content: text
+mandoc: punctNAME.in:8:2: WARNING: missing comma before name: Nm third_name
+mandoc: punctNAME.in:8:16: WARNING: bad NAME section content: text

Added: vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/punctNAME.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SH-PUNCTNAME(1) - General Commands Manual
+
+# NAME
+
+**Sh-punctNAME**
+**second\_name**;
+**third\_name**, - wrong punctuation in the NAME section
+
+# DESCRIPTION
+
+One comma is missing, and one is misplaced.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sh/subbefore.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/subbefore.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/subbefore.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: subbefore.in,v 1.4 2017/07/28 12:37:51 schwarze Exp $
+.Dd $Mdocdate: July 28 2017 $
+.Dt SH-SUBBEFORE 1
+.Os
+.Ss Subsection
+Plain text and
+.Em a macro
+before the first section header.
+.Sh NAME
+.Nm Sh-subbefore
+.Nd subsection before the first section header
+.Sh DESCRIPTION
+some text

Added: vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+SH-SUBBEFORE(1)             General Commands Manual            SH-SUBBEFORE(1)
+
+   SSuubbsseeccttiioonn
+     Plain text and _a _m_a_c_r_o before the first section header.
+
+NNAAMMEE
+     SShh--ssuubbbbeeffoorree - subsection before the first section header
+
+DDEESSCCRRIIPPTTIIOONN
+     some text
+
+OpenBSD                          July 28, 2017                         OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: subbefore.in:5:2: WARNING: content before first section header: Ss

Added: vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sh/subbefore.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+SH-SUBBEFORE(1) - General Commands Manual
+
+## Subsection
+
+Plain text and
+*a macro*
+before the first section header.
+
+# NAME
+
+**Sh-subbefore** - subsection before the first section header
+
+# DESCRIPTION
+
+some text
+
+OpenBSD - July 28, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sm/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+# $OpenBSD: Makefile,v 1.7 2014/11/26 19:22:44 schwarze Exp $
+
+REGRESS_TARGETS	= noarg badarg scope spacing-No spacing-Op twoarg
+LINT_TARGETS	= badarg twoarg
+
+SKIP_TMAN ?= scope
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Sm/badarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/badarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/badarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: badarg.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SM-BADARG 1
+.Os
+.Sh NAME
+.Nm Sm-badarg
+.Nd spacing macro with invalid arguments
+.Sh DESCRIPTION
+.Fl f Ar on
+.Sm off
+.Fl f Ar off
+.Sm bad
+.Fl f Ar bad Pq on
+.Sm bad
+.Fl f Ar bad Pq off

Added: vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SM-BADARG(1)                General Commands Manual               SM-BADARG(1)
+
+NNAAMMEE
+     SSmm--bbaaddaarrgg - spacing macro with invalid arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     --ff _o_n --ff_o_f_f bad --ff _b_a_d (on) bad--ff_b_a_d(off)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badarg.in:12:5: WARNING: invalid Boolean argument: Sm bad
+mandoc: badarg.in:14:5: WARNING: invalid Boolean argument: Sm bad

Added: vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/badarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+SM-BADARG(1) - General Commands Manual
+
+# NAME
+
+**Sm-badarg** - spacing macro with invalid arguments
+
+# DESCRIPTION
+
+**-f** *on*
+**-f**‌*off* bad
+**-f** *bad* (on)
+bad**-f**‌*bad*(off)
+
+OpenBSD-July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sm/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: noarg.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SM-NOARG 1
+.Os
+.Sh NAME
+.Nm Sm-noarg
+.Nd spacing macro without arguments
+.Sh DESCRIPTION
+.Fl f Ar on
+.Sm off
+.Fl f Ar off
+.Sm
+.Fl f Ar toggle Pq now on
+.Sm on
+.Fl f Ar on
+.Sm
+.Fl f Ar toggle Pq now off
+.Pp
+.Sm on
+.Fl f Ar on
+on a new line

Added: vendor/mandoc/dist/regress/mdoc/Sm/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+SM-NOARG(1)                 General Commands Manual                SM-NOARG(1)
+
+NNAAMMEE
+     SSmm--nnooaarrgg - spacing macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     --ff _o_n --ff_o_f_f --ff _t_o_g_g_l_e (now on) --ff _o_n --ff_t_o_g_g_l_e(nowoff)
+
+     --ff _o_n on a new line
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sm/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+SM-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Sm-noarg** - spacing macro without arguments
+
+# DESCRIPTION
+
+**-f** *on*
+**-f**‌*off*
+**-f** *toggle* (now on)
+**-f** *on*
+**-f**‌*toggle*(nowoff)
+
+**-f** *on*
+on a new line
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sm/scope.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/scope.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/scope.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: scope.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SM-SCOPE 1
+.Os
+.Sh NAME
+.Nm Sm-scope
+.Nd scope of the spacing macro
+.Sh DESCRIPTION
+Using an abbreviated example from the
+.Xr ksh 1
+manual.
+.Pp
+Modifiers can be applied to the
+.Pf ${ Ns Ar name Ns }
+form of parameter substitution:
+.Bl -tag -width Ds
+.Sm off
+.It ${ Ar name No :- Ar word No }
+.Sm on
+If
+.Ar name
+is set and not
+.Dv NULL ,
+it is substituted; otherwise,
+.Ar word
+is substituted.
+.El
+.Pp
+In the above modifiers, the
+.Ql \&:
+can be omitted, ...

Added: vendor/mandoc/dist/regress/mdoc/Sm/scope.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/scope.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/scope.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+SM-SCOPE(1)                 General Commands Manual                SM-SCOPE(1)
+
+NNAAMMEE
+     SSmm--ssccooppee - scope of the spacing macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Using an abbreviated example from the ksh(1) manual.
+
+     Modifiers can be applied to the ${_n_a_m_e} form of parameter substitution:
+
+     ${_n_a_m_e:-_w_o_r_d}
+             If _n_a_m_e is set and not NULL, it is substituted; otherwise, _w_o_r_d
+             is substituted.
+
+     In the above modifiers, the `:' can be omitted, ...
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sm/scope.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/scope.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/scope.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+SM-SCOPE(1) - General Commands Manual
+
+# NAME
+
+**Sm-scope** - scope of the spacing macro
+
+# DESCRIPTION
+
+Using an abbreviated example from the
+ksh(1)
+manual.
+
+Modifiers can be applied to the
+${*name*}
+form of parameter substitution:
+
+${*name*:-*word*}
+
+> If
+> *name*
+> is set and not
+> `NULL`,
+> it is substituted; otherwise,
+> *word*
+> is substituted.
+
+In the above modifiers, the
+'`:`'
+can be omitted, ...
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,61 @@
+.\" $OpenBSD: spacing-No.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SM-SPACING 1
+.Os
+.Sh NAME
+.Nm Sm-spacing
+.Nd basic tests of spacing mode
+.Sh SYNOPSIS
+.Nm mandoc
+.Sm off
+.Fl T Ar mode
+.Sm on
+.Ar
+.Sh DESCRIPTION
+text1
+.Sm off
+text2 text3
+.Sm on
+text4
+.Pp
+text1
+.Sm off
+text2 text3
+.Sm on
+.No macro4
+.Pp
+text1
+.Sm off
+.No macro2 macro3
+.Sm on
+text4
+.Pp
+text1
+.Sm off
+.No macro2 No macro3
+.Sm on
+.No macro4
+.Pp
+.No macro1
+.Sm off
+text2 text3
+.Sm on
+text4
+.Pp
+.No macro1
+.Sm off
+text2 text3
+.Sm on
+.No macro4
+.Pp
+.No macro1
+.Sm off
+.No macro2 No macro3
+.Sm on
+text4
+.Pp
+.No macro1
+.Sm off
+.No macro2 No macro3
+.Sm on
+.No macro4

Added: vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+SM-SPACING(1)               General Commands Manual              SM-SPACING(1)
+
+NNAAMMEE
+     SSmm--ssppaacciinngg - basic tests of spacing mode
+
+SSYYNNOOPPSSIISS
+     mmaannddoocc --TT_m_o_d_e _f_i_l_e _._._.
+
+DDEESSCCRRIIPPTTIIOONN
+     text1 text2 text3 text4
+
+     text1 text2 text3 macro4
+
+     text1 macro2macro3 text4
+
+     text1 macro2macro3 macro4
+
+     macro1 text2 text3 text4
+
+     macro1 text2 text3 macro4
+
+     macro1 macro2macro3 text4
+
+     macro1 macro2macro3 macro4
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/spacing-No.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,47 @@
+SM-SPACING(1) - General Commands Manual
+
+# NAME
+
+**Sm-spacing** - basic tests of spacing mode
+
+# SYNOPSIS
+
+**mandoc**
+**-T**‌*mode*
+*file ...*
+
+# DESCRIPTION
+
+text1
+text2 text3
+text4
+
+text1
+text2 text3
+macro4
+
+text1
+macro2macro3
+text4
+
+text1
+macro2macro3
+macro4
+
+macro1
+text2 text3
+text4
+
+macro1
+text2 text3
+macro4
+
+macro1
+macro2macro3
+text4
+
+macro1
+macro2macro3
+macro4
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,64 @@
+.\" $OpenBSD: spacing-Op.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SM-SPACING-OP 1
+.Os
+.Sh NAME
+.Nm Sm-spacing-Op
+.Nd spacing mode, demonstrated using the .Op macro
+.Sh SYNOPSIS
+.Nm mandoc
+.Sm off
+.Fl T Ar mode
+.Sm on
+.Ar
+.Sh DESCRIPTION
+text1
+.Sm off
+text2 text3
+.Sm on
+text4
+.Pp
+text1
+.Sm off
+text2 text3
+.Sm on
+.Op macro4
+.Pp
+text1
+.Sm off
+.Op macro2 macro3
+.Sm on
+text4
+.Pp
+text1
+.Sm off
+.Op macro2 Op macro3
+.Sm on
+.Op macro4
+.Pp
+.Op macro1
+.Sm off
+text2 text3
+.Sm on
+text4
+.Pp
+.Op macro1
+.Sm off
+text2 text3
+.Sm on
+.Op macro4
+.Pp
+.Op macro1
+.Sm off
+.Op macro2 Op macro3
+.Sm on
+text4
+.Pp
+.Op macro1
+.Sm off
+.Op macro2 Op macro3
+.Sm on
+.Op macro4
+.Pp
+.Sm on
+.Op macro1

Added: vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+SM-SPACING-OP(1)            General Commands Manual           SM-SPACING-OP(1)
+
+NNAAMMEE
+     SSmm--ssppaacciinngg--OOpp - spacing mode, demonstrated using the .Op macro
+
+SSYYNNOOPPSSIISS
+     mmaannddoocc --TT_m_o_d_e _f_i_l_e _._._.
+
+DDEESSCCRRIIPPTTIIOONN
+     text1 text2 text3 text4
+
+     text1 text2 text3 [macro4]
+
+     text1 [macro2macro3] text4
+
+     text1 [macro2[macro3]] [macro4]
+
+     [macro1] text2 text3 text4
+
+     [macro1] text2 text3 [macro4]
+
+     [macro1] [macro2[macro3]] text4
+
+     [macro1] [macro2[macro3]] [macro4]
+
+     [macro1]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/spacing-Op.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+SM-SPACING-OP(1) - General Commands Manual
+
+# NAME
+
+**Sm-spacing-Op** - spacing mode, demonstrated using the .Op macro
+
+# SYNOPSIS
+
+**mandoc**
+**-T**‌*mode*
+*file ...*
+
+# DESCRIPTION
+
+text1
+text2 text3
+text4
+
+text1
+text2 text3
+\[macro4]
+
+text1
+\[macro2macro3]
+text4
+
+text1
+\[macro2\[macro3]]
+\[macro4]
+
+\[macro1]
+text2 text3
+text4
+
+\[macro1]
+text2 text3
+\[macro4]
+
+\[macro1]
+\[macro2\[macro3]]
+text4
+
+\[macro1]
+\[macro2\[macro3]]
+\[macro4]
+
+\[macro1]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sm/twoarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/twoarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/twoarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: twoarg.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SM-TWOARG 1
+.Os
+.Sh NAME
+.Nm Sm-twoarg
+.Nd spacing macro with multiple arguments
+.Sh DESCRIPTION
+.Sy default :
+.Fl f Ar on
+.br
+.Sy off two :
+.Sm off two
+.Fl f Ar off
+.br
+.Sy bad two :
+.Sm bad two
+.Fl f Ar off
+.br
+.Sy on two :
+.Sm on two
+.Fl f Ar on

Added: vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+SM-TWOARG(1)                General Commands Manual               SM-TWOARG(1)
+
+NNAAMMEE
+     SSmm--ttwwooaarrgg - spacing macro with multiple arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     ddeeffaauulltt: --ff _o_n
+     ooffff ttwwoo: two--ff_o_f_f
+     bbaaddttwwoo: bad two --ff _o_f_f
+     oonn ttwwoo: two --ff _o_n
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: twoarg.in:17:5: WARNING: invalid Boolean argument: Sm bad

Added: vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sm/twoarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+SM-TWOARG(1) - General Commands Manual
+
+# NAME
+
+**Sm-twoarg** - spacing macro with multiple arguments
+
+# DESCRIPTION
+
+**default**:
+**-f** *on*  
+**off two**:
+two**-f**‌*off*  
+**badtwo**: bad two
+**-f** *off*  
+**on two**:
+two
+**-f** *on*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sq/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sq/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sq/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2011/12/04 03:09:25 schwarze Exp $
+
+REGRESS_TARGETS  = empty
+LINT_TARGETS	 = empty
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Sq/empty.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sq/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sq/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: empty.in,v 1.5 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SQ-EMPTY 1
+.Os
+.Sh NAME
+.Nm Sq-empty
+.Nd empty implicit enclosure macros
+.Sh DESCRIPTION
+An empty
+.Sq
+and a full
+.Sq "(" user at host)
+quotation.
+And another
+.So "(" full) Sc one "Sy" bold .

Added: vendor/mandoc/dist/regress/mdoc/Sq/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sq/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sq/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+SQ-EMPTY(1)                 General Commands Manual                SQ-EMPTY(1)
+
+NNAAMMEE
+     SSqq--eemmppttyy - empty implicit enclosure macros
+
+DDEESSCCRRIIPPTTIIOONN
+     An empty `' and a full (`user at host)' quotation.  And another (`full)' one
+     bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sq/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sq/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sq/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:12:18: STYLE: no blank before trailing delimiter: Sq user at host)
+mandoc: empty.in:15:13: STYLE: no blank before trailing delimiter: So full)

Added: vendor/mandoc/dist/regress/mdoc/Sq/empty.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sq/empty.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sq/empty.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+SQ-EMPTY(1) - General Commands Manual
+
+# NAME
+
+**Sq-empty** - empty implicit enclosure macros
+
+# DESCRIPTION
+
+An empty
+''
+and a full
+('user at host)'
+quotation.
+And another
+('full)' one **bold**.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/St/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+# $OpenBSD: Makefile,v 1.4 2015/02/10 17:47:19 schwarze Exp $
+
+REGRESS_TARGETS	 = badargs call
+LINT_TARGETS	 = badargs call
+
+# groff-1.22.3 defect:
+# - If the first argument of .St is the name of another macro,
+#   internal groff_mdoc(7) state gets corrupted.
+
+SKIP_GROFF	 = call
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/St/badargs.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/badargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/badargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: badargs.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ST-INVALID 1
+.Os
+.Sh NAME
+.Nm St-invalid
+.Nd handling of invalid standard argument
+.Sh STANDARDS
+valid argument:
+.St -p1003.1-2004
+.Pp
+invalid argument:
+.St -murks
+.Pp
+no arguments:
+.St
+.Pp
+two arguments:
+.St -p1003.1-2004 murks
+.Pp
+end of file

Added: vendor/mandoc/dist/regress/mdoc/St/badargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/badargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/badargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+ST-INVALID(1)               General Commands Manual              ST-INVALID(1)
+
+NNAAMMEE
+     SStt--iinnvvaalliidd - handling of invalid standard argument
+
+SSTTAANNDDAARRDDSS
+     valid argument: IEEE Std 1003.1-2004 ("POSIX.1")
+
+     invalid argument:
+
+     no arguments:
+
+     two arguments: IEEE Std 1003.1-2004 ("POSIX.1") murks
+
+     end of file
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/St/badargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/badargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/badargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badargs.in:16:2: WARNING: skipping empty macro: St
+mandoc: badargs.in:13:5: ERROR: unknown standard specifier: St -murks

Added: vendor/mandoc/dist/regress/mdoc/St/badargs.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/badargs.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/badargs.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+ST-INVALID(1) - General Commands Manual
+
+# NAME
+
+**St-invalid** - handling of invalid standard argument
+
+# STANDARDS
+
+valid argument:
+IEEE Std 1003.1-2004 (“POSIX.1”)
+
+invalid argument:
+
+no arguments:
+
+two arguments:
+IEEE Std 1003.1-2004 (“POSIX.1”) murks
+
+end of file
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/St/call.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/call.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/call.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: call.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ST-CALL 1
+.Os
+.Sh NAME
+.Nm St-call
+.Nd the standard macro calling other macros
+.Sh STANDARDS
+calling another macro:
+.St "Fl" called
+.Pp
+valid argument:
+.St -p1003.1-2004
+.Pp
+end of file

Added: vendor/mandoc/dist/regress/mdoc/St/call.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/call.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/call.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+ST-CALL(1)                  General Commands Manual                 ST-CALL(1)
+
+NNAAMMEE
+     SStt--ccaallll - the standard macro calling other macros
+
+SSTTAANNDDAARRDDSS
+     calling another macro: --ccaalllleedd
+
+     valid argument: IEEE Std 1003.1-2004 ("POSIX.1")
+
+     end of file
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/St/call.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/call.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/call.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: call.in:10:2: WARNING: skipping empty macro: St

Added: vendor/mandoc/dist/regress/mdoc/St/call.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/St/call.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/St/call.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+ST-CALL(1) - General Commands Manual
+
+# NAME
+
+**St-call** - the standard macro calling other macros
+
+# STANDARDS
+
+calling another macro:
+**-called**
+
+valid argument:
+IEEE Std 1003.1-2004 (“POSIX.1”)
+
+end of file
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sx/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = noarg font
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Sx/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SX-FONT 1
+.Os
+.Sh NAME
+.Nm Sx-font
+.Nd changing fonts inside the cross reference macro
+.Sh DESCRIPTION
+normal text
+.Sx emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Sx/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SX-FONT(1)                  General Commands Manual                 SX-FONT(1)
+
+NNAAMMEE
+     SSxx--ffoonntt - changing fonts inside the cross reference macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sx/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SX-FONT(1) - General Commands Manual
+
+# NAME
+
+**Sx-font** - changing fonts inside the cross reference macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sx/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SX-NOARG 1
+.Os
+.Sh NAME
+.Nm Sx-noarg
+.Nd internal cross reference without a target
+.Sh DESCRIPTION
+with target:
+.Sx DESCRIPTION ";" "Em" italic
+no target:
+.Sx
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SX-NOARG(1)                 General Commands Manual                SX-NOARG(1)
+
+NNAAMMEE
+     SSxx--nnooaarrgg - internal cross reference without a target
+
+DDEESSCCRRIIPPTTIIOONN
+     with target: _D_E_S_C_R_I_P_T_I_O_N; _i_t_a_l_i_c no target: end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Sx

Added: vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sx/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+SX-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Sx-noarg** - internal cross reference without a target
+
+# DESCRIPTION
+
+with target:
+*DESCRIPTION*; *italic*
+no target:
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sy/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.5 2014/11/17 06:44:35 schwarze Exp $
+
+REGRESS_TARGETS = noarg font punct
+LINT_TARGETS	= noarg punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Sy/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SY-FONT 1
+.Os
+.Sh NAME
+.Nm Sy-font
+.Nd changing fonts inside the symbolic font macro
+.Sh DESCRIPTION
+normal text
+.Sy bold\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Sy/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SY-FONT(1)                  General Commands Manual                 SY-FONT(1)
+
+NNAAMMEE
+     SSyy--ffoonntt - changing fonts inside the symbolic font macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text bboolldd_e_m_p_h_a_s_i_sbbaacckk trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sy/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+SY-FONT(1) - General Commands Manual
+
+# NAME
+
+**Sy-font** - changing fonts inside the symbolic font macro
+
+# DESCRIPTION
+
+normal text
+**bold*emphasis*back**
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sy/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SY-NOARG 1
+.Os
+.Sh NAME
+.Nm Sy-noarg
+.Nd symbolic macro without arguments
+.Sh DESCRIPTION
+with argument
+.Sy arg
+no argument
+.Sy
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+SY-NOARG(1)                 General Commands Manual                SY-NOARG(1)
+
+NNAAMMEE
+     SSyy--nnooaarrgg - symbolic macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     with argument aarrgg no argument end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Sy

Added: vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+SY-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Sy-noarg** - symbolic macro without arguments
+
+# DESCRIPTION
+
+with argument
+**arg**
+no argument
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Sy/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,87 @@
+.\" $OpenBSD: punct.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SY-PUNCT 1
+.Os
+.Sh NAME
+.Nm Sy-punct
+.Nd punctuation following a symbolic macro
+.Sh DESCRIPTION
+Leading punctuation:
+.Sy ( b
+.Sy "[" b
+.Sy | b
+.Sy . b
+.Sy , b
+.Sy ; b
+.Sy : b
+.Sy ? b
+.Sy ! b
+.Sy ) b
+.Sy ] b
+.Pp
+Trailing punctuation:
+.Sy a (
+.Sy a [
+.Sy a |
+.Sy a .
+.Sy a ,
+.Sy a ;
+.Sy a :
+.Sy a ?
+.Sy a !
+.Sy a ")"
+.Sy a ]
+.Pp
+Middle punctuation:
+.Sy a ( b
+.Sy a [ b
+.Sy a "|" b
+.Sy a . b
+.Sy a , b
+.Sy a ; b
+.Sy a : b
+.Sy a ? b
+.Sy a ! b
+.Sy a ) b
+.Sy a ] b
+.Pp
+Isolated punctuation:
+.Sy a Sy ( Sy b
+.Sy a Sy [ Sy b
+.Sy a Sy | Sy b
+.Sy a Sy . Sy b
+.Sy a Sy , Sy b
+.Sy a Sy ; Sy b
+.Sy a Sy : Sy b
+.Sy a Sy ? Sy b
+.Sy a Sy ! Sy b
+.Sy a Sy ) Sy b
+.Sy a Sy ] Sy b
+.Pp
+Isolated trailing punctuation:
+.Sy a Sy (
+.Sy a Sy [
+.Sy a Sy |
+.Sy a Sy .
+.Sy a Sy ,
+.Sy a Sy ;
+.Sy a Sy :
+.Sy a Sy ?
+.Sy a Sy !
+.Sy a Sy )
+.Sy a Sy ]
+.Pp
+Multiple isolated punctuation:
+.Sy a Sy ( [ Sy b
+.Sy a Sy ) ] Sy b
+.Pp
+Multiple punctuation:
+.Sy [ ( arg ) ] .
+.Pp
+Quoted:
+.Sy "a . b Nm" "Em" italic
+.Sy ". b Nm"
+.Sy "."
+.Pp
+Missing blank:
+.Sy a.

Added: vendor/mandoc/dist/regress/mdoc/Sy/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+SY-PUNCT(1)                 General Commands Manual                SY-PUNCT(1)
+
+NNAAMMEE
+     SSyy--ppuunncctt - punctuation following a symbolic macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Leading punctuation: (bb [bb | bb . bb , bb ; bb : bb ? bb ! bb ) bb ] bb
+
+     Trailing punctuation: aa ( aa [ aa | aa.  aa, aa; aa: aa?  aa!  aa) aa]
+
+     Middle punctuation: aa (bb aa [bb aa | bb aa. bb aa, bb aa; bb aa: bb aa? bb aa! bb aa) bb aa]
+     bb
+
+     Isolated punctuation: aa (bb aa [bb aa | bb aa . bb aa , bb aa ; bb aa : bb aa ? bb aa ! bb
+     aa ) bb aa ] bb
+
+     Isolated trailing punctuation: aa ( aa [ aa | aa .  aa , aa ; aa : aa ?  aa !  aa )
+     aa ]
+
+     Multiple isolated punctuation: aa ([bb aa )] bb
+
+     Multiple punctuation: [(aarrgg)].
+
+     Quoted: aa .. bb NNmm _i_t_a_l_i_c .. bb NNmm .
+
+     Missing blank: aa..
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Sy/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+mandoc: punct.in:49:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:50:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:51:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:52:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:53:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:54:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:55:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:56:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:57:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:58:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:59:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:62:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:63:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:64:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:65:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:66:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:67:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:68:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:69:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:70:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:71:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:72:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:75:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:76:7: WARNING: skipping empty macro: Sy
+mandoc: punct.in:84:2: WARNING: skipping empty macro: Sy
+mandoc: punct.in:87:6: STYLE: no blank before trailing delimiter: Sy a.

Added: vendor/mandoc/dist/regress/mdoc/Sy/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Sy/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Sy/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,89 @@
+SY-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Sy-punct** - punctuation following a symbolic macro
+
+# DESCRIPTION
+
+Leading punctuation:
+(**b**
+\[**b**
+| **b**
+. **b**
+, **b**
+; **b**
+: **b**
+? **b**
+! **b**
+) **b**
+] **b**
+
+Trailing punctuation:
+**a** (
+**a** \[
+**a** |
+**a**.
+**a**,
+**a**;
+**a**:
+**a**?
+**a**!
+**a**)
+**a**]
+
+Middle punctuation:
+**a** (**b**
+**a** \[**b**
+**a** | **b**
+**a**. **b**
+**a**, **b**
+**a**; **b**
+**a**: **b**
+**a**? **b**
+**a**! **b**
+**a**) **b**
+**a**] **b**
+
+Isolated punctuation:
+**a** (**b**
+**a** \[**b**
+**a** | **b**
+**a** . **b**
+**a** , **b**
+**a** ; **b**
+**a** : **b**
+**a** ? **b**
+**a** ! **b**
+**a** ) **b**
+**a** ] **b**
+
+Isolated trailing punctuation:
+**a** (
+**a** \[
+**a** |
+**a** .
+**a** ,
+**a** ;
+**a** :
+**a** ?
+**a** !
+**a** )
+**a** ]
+
+Multiple isolated punctuation:
+**a** (\[**b**
+**a** )] **b**
+
+Multiple punctuation:
+\[(**arg**)].
+
+Quoted:
+**a . b Nm** *italic*
+**. b Nm**
+.
+
+Missing blank:
+**a.**
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Tn/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS = noarg font
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Tn/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TN-FONT 1
+.Os
+.Sh NAME
+.Nm Tn-font
+.Nd changing fonts inside the trade name macro
+.Sh DESCRIPTION
+normal text
+.Tn literal\\fIemphasis\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Tn/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+TN-FONT(1)                  General Commands Manual                 TN-FONT(1)
+
+NNAAMMEE
+     TTnn--ffoonntt - changing fonts inside the trade name macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text literal_e_m_p_h_a_s_i_sback trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Tn/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TN-FONT(1) - General Commands Manual
+
+# NAME
+
+**Tn-font** - changing fonts inside the trade name macro
+
+# DESCRIPTION
+
+normal text
+`literalemphasisback`
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Tn/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TN-NOARG 1
+.Os
+.Sh NAME
+.Nm Tn-noarg
+.Nd trade name macro without argument
+.Sh DESCRIPTION
+with argument
+.Tn IBM "," "Em" italic
+no argument
+.Tn
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+TN-NOARG(1)                 General Commands Manual                TN-NOARG(1)
+
+NNAAMMEE
+     TTnn--nnooaarrgg - trade name macro without argument
+
+DDEESSCCRRIIPPTTIIOONN
+     with argument IBM, _i_t_a_l_i_c no argument end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Tn
+mandoc: noarg.in:10:2: STYLE: useless macro: Tn

Added: vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Tn/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+TN-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Tn-noarg** - trade name macro without argument
+
+# DESCRIPTION
+
+with argument
+`IBM`, *italic*
+no argument
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ud/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ud/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ud/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2017/01/11 17:39:45 schwarze Exp $
+
+REGRESS_TARGETS	 = arg
+LINT_TARGETS	 = arg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ud/arg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ud/arg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ud/arg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: arg.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt UD-ARG 1
+.Os
+.Sh NAME
+.Nm Ud-arg
+.Nd obsolete text production macros
+.Sh DESCRIPTION
+The newest branch is
+.Ud
+The stable branch
+.Bt
+It will be released shortly.
+.Pp
+With arg:
+.Ud bar
+.Bt foo
+.Ud one two
+.Bt one two
+end

Added: vendor/mandoc/dist/regress/mdoc/Ud/arg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ud/arg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ud/arg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+UD-ARG(1)                   General Commands Manual                  UD-ARG(1)
+
+NNAAMMEE
+     UUdd--aarrgg - obsolete text production macros
+
+DDEESSCCRRIIPPTTIIOONN
+     The newest branch is currently under development.  The stable branch is
+     currently in beta test.  It will be released shortly.
+
+     With arg: currently under development.  is currently in beta test.
+     currently under development.  is currently in beta test.  end
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ud/arg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ud/arg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ud/arg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+mandoc: arg.in:10:2: STYLE: useless macro: Ud
+mandoc: arg.in:12:2: STYLE: useless macro: Bt
+mandoc: arg.in:16:2: STYLE: useless macro: Ud
+mandoc: arg.in:16:2: ERROR: skipping all arguments: Ud bar
+mandoc: arg.in:17:2: STYLE: useless macro: Bt
+mandoc: arg.in:17:2: ERROR: skipping all arguments: Bt foo
+mandoc: arg.in:18:2: STYLE: useless macro: Ud
+mandoc: arg.in:18:2: ERROR: skipping all arguments: Ud one
+mandoc: arg.in:19:2: STYLE: useless macro: Bt
+mandoc: arg.in:19:2: ERROR: skipping all arguments: Bt one

Added: vendor/mandoc/dist/regress/mdoc/Ud/arg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ud/arg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ud/arg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+UD-ARG(1) - General Commands Manual
+
+# NAME
+
+**Ud-arg** - obsolete text production macros
+
+# DESCRIPTION
+
+The newest branch is
+currently under development.
+The stable branch
+is currently in beta test.
+It will be released shortly.
+
+With arg:
+currently under development.
+is currently in beta test.
+currently under development.
+is currently in beta test.
+end
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ux/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2013/12/22 14:06:29 schwarze Exp $
+
+REGRESS_TARGETS	 = eos punct spacing
+LINT_TARGETS	 = punct
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Ux/eos.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/eos.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/eos.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+.\" $OpenBSD: eos.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt UX-EOS 1
+.Os
+.Sh NAME
+.Nm Ux-eos
+.Nd end of sentence spacing after Unix macros
+.Sh DESCRIPTION
+In the beginning Ken and Dennis wrote
+.Ux .
+The CSRG rewrote it to become
+.Bx .
+When it dissolved, people started
+.Bsx .
+And
+.Nx .
+And
+.Fx .
+And
+.Ox .
+And
+.Dx .
+By now, it's free for everyone.

Added: vendor/mandoc/dist/regress/mdoc/Ux/eos.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/eos.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/eos.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+UX-EOS(1)                   General Commands Manual                  UX-EOS(1)
+
+NNAAMMEE
+     UUxx--eeooss - end of sentence spacing after Unix macros
+
+DDEESSCCRRIIPPTTIIOONN
+     In the beginning Ken and Dennis wrote UNIX.  The CSRG rewrote it to
+     become BSD.  When it dissolved, people started BSD/OS.  And NetBSD.  And
+     FreeBSD.  And OpenBSD.  And DragonFly.  By now, it's free for everyone.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ux/eos.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/eos.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/eos.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+UX-EOS(1) - General Commands Manual
+
+# NAME
+
+**Ux-eos** - end of sentence spacing after Unix macros
+
+# DESCRIPTION
+
+In the beginning Ken and Dennis wrote
+UNIX.
+The CSRG rewrote it to become
+BSD.
+When it dissolved, people started
+BSD/OS.
+And
+NetBSD.
+And
+FreeBSD.
+And
+OpenBSD.
+And
+DragonFly.
+By now, it's free for everyone.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ux/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: punct.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt UX-PUNCT 1
+.Os
+.Sh NAME
+.Nm Ux-punct
+.Nd trailing delimiters in Unix macro arguments
+.Sh DESCRIPTION
+In June 2017, the latest release of various Unix-like
+operating systems were
+.Bsx 5.1,
+.Dx 4.8.0,
+.Fx 11.0,
+.Nx 7.1,
+and
+.Ox 6.1.

Added: vendor/mandoc/dist/regress/mdoc/Ux/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+UX-PUNCT(1)                 General Commands Manual                UX-PUNCT(1)
+
+NNAAMMEE
+     UUxx--ppuunncctt - trailing delimiters in Unix macro arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     In June 2017, the latest release of various Unix-like operating systems
+     were BSD/OS 5.1, DragonFly 4.8.0, FreeBSD 11.0, NetBSD 7.1, and
+     OpenBSD 6.1.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ux/punct.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/punct.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/punct.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: punct.in:11:9: STYLE: no blank before trailing delimiter: Bsx 5.1,
+mandoc: punct.in:12:10: STYLE: no blank before trailing delimiter: Dx 4.8.0,
+mandoc: punct.in:13:9: STYLE: no blank before trailing delimiter: Fx 11.0,
+mandoc: punct.in:14:8: STYLE: no blank before trailing delimiter: Nx 7.1,
+mandoc: punct.in:16:8: STYLE: no blank before trailing delimiter: Ox 6.1.

Added: vendor/mandoc/dist/regress/mdoc/Ux/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+UX-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Ux-punct** - trailing delimiters in Unix macro arguments
+
+# DESCRIPTION
+
+In June 2017, the latest release of various Unix-like
+operating systems were
+BSD/OS 5.1,
+DragonFly 4.8.0,
+FreeBSD 11.0,
+NetBSD 7.1,
+and
+OpenBSD 6.1.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Ux/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: spacing.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt UX-SPACING 1
+.Os
+.Sh NAME
+.Nm Ux-spacing
+.Nd spacing around the Unix macro
+.Sh DESCRIPTION
+The
+.Ux
+family of operating systems, including
+.Nx ,
+.Ox ,
+.Fx ,
+.Dx
+and
+.Bsx .
+The system is
+.Ud
+The system
+.Bt

Added: vendor/mandoc/dist/regress/mdoc/Ux/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+UX-SPACING(1)               General Commands Manual              UX-SPACING(1)
+
+NNAAMMEE
+     UUxx--ssppaacciinngg - spacing around the Unix macro
+
+DDEESSCCRRIIPPTTIIOONN
+     The UNIX family of operating systems, including NetBSD, OpenBSD, FreeBSD,
+     DragonFly and BSD/OS.  The system is currently under development.  The
+     system is currently in beta test.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Ux/spacing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Ux/spacing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Ux/spacing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+UX-SPACING(1) - General Commands Manual
+
+# NAME
+
+**Ux-spacing** - spacing around the Unix macro
+
+# DESCRIPTION
+
+The
+UNIX
+family of operating systems, including
+NetBSD,
+OpenBSD,
+FreeBSD,
+DragonFly
+and
+BSD/OS.
+The system is
+currently under development.
+The system
+is currently in beta test.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Va/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2014/07/02 20:18:42 schwarze Exp $
+
+REGRESS_TARGETS	= basic font noarg punct
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Va/basic.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: basic.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt VA-BASIC 1
+.Os
+.Sh NAME
+.Nm Va-basic
+.Nd basic usage of the variable name macro
+.Sh DESCRIPTION
+Both
+.Vt char *
+.Va malloc_options
+and
+.Vt int
+.Va errno
+are typical examples of global variables.

Added: vendor/mandoc/dist/regress/mdoc/Va/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+VA-BASIC(1)                 General Commands Manual                VA-BASIC(1)
+
+NNAAMMEE
+     VVaa--bbaassiicc - basic usage of the variable name macro
+
+DDEESSCCRRIIPPTTIIOONN
+     Both _c_h_a_r _* _m_a_l_l_o_c___o_p_t_i_o_n_s and _i_n_t _e_r_r_n_o are typical examples of global
+     variables.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Va/basic.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/basic.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/basic.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+VA-BASIC(1) - General Commands Manual
+
+# NAME
+
+**Va-basic** - basic usage of the variable name macro
+
+# DESCRIPTION
+
+Both
+*char \*‌*
+*malloc\_options*
+and
+*int*
+*errno*
+are typical examples of global variables.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Va/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt VA-FONT 1
+.Os
+.Sh NAME
+.Nm Va-font
+.Nd changing fonts inside the variable name macro
+.Sh DESCRIPTION
+normal text
+.Va emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Va/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+VA-FONT(1)                  General Commands Manual                 VA-FONT(1)
+
+NNAAMMEE
+     VVaa--ffoonntt - changing fonts inside the variable name macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Va/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+VA-FONT(1) - General Commands Manual
+
+# NAME
+
+**Va-font** - changing fonts inside the variable name macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Va/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: noarg.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt VA-NOARG 1
+.Os
+.Sh NAME
+.Nm Va-noarg
+.Nd variable name macro without arguments
+.Sh DESCRIPTION
+with arguments
+.Vt int
+.Va errno.
+no arguments
+.Va
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Va/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+VA-NOARG(1)                 General Commands Manual                VA-NOARG(1)
+
+NNAAMMEE
+     VVaa--nnooaarrgg - variable name macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     with arguments _i_n_t _e_r_r_n_o_. no arguments end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Va/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:13:2: WARNING: skipping empty macro: Va
+mandoc: noarg.in:11:10: STYLE: no blank before trailing delimiter: Va errno.

Added: vendor/mandoc/dist/regress/mdoc/Va/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+VA-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Va-noarg** - variable name macro without arguments
+
+# DESCRIPTION
+
+with arguments
+*int*
+*errno.*
+no arguments
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Va/punct.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/punct.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/punct.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: punct.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt AR-PUNCT 1
+.Os
+.Sh NAME
+.Nm Va-punct
+.Nd punctuation handling by the Va macro
+.Sh DESCRIPTION
+closing punctuation
+.Va a )
+only one
+.Va )
+only more than one
+.Va ) )
+middle
+.Va a ) z
+start
+.Va ) z
+dot
+.Va . z
+comma
+.Va , z
+semicolon
+.Va ; z
+colon
+.Va : z
+quest
+.Va ? z
+excl
+.Va ! z
+paren
+.Va ) z
+bracket
+.Va ] z
+bar
+.Va | m
+op paren
+.Va ( a
+op bracket
+.Va [ a
+.Pp
+quoted punctuation:
+.Va a "(" b "|" c ")" d "," "Sy" bold .

Added: vendor/mandoc/dist/regress/mdoc/Va/punct.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/punct.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/punct.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+AR-PUNCT(1)                 General Commands Manual                AR-PUNCT(1)
+
+NNAAMMEE
+     VVaa--ppuunncctt - punctuation handling by the Va macro
+
+DDEESSCCRRIIPPTTIIOONN
+     closing punctuation _a) only one ) only more than one )) middle _a) _z start
+     ) _z dot . _z comma , _z semicolon ; _z colon : _z quest ? _z excl ! _z paren )
+     _z bracket ] _z bar | _m op paren (_a op bracket [_a
+
+     quoted punctuation: _a (_b | _c) _d, bboolldd.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Va/punct.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Va/punct.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Va/punct.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,45 @@
+AR-PUNCT(1) - General Commands Manual
+
+# NAME
+
+**Va-punct** - punctuation handling by the Va macro
+
+# DESCRIPTION
+
+closing punctuation
+*a*)
+only one
+)
+only more than one
+))
+middle
+*a*) *z*
+start
+) *z*
+dot
+. *z*
+comma
+, *z*
+semicolon
+; *z*
+colon
+: *z*
+quest
+? *z*
+excl
+! *z*
+paren
+) *z*
+bracket
+] *z*
+bar
+| *m*
+op paren
+(*a*
+op bracket
+\[*a*
+
+quoted punctuation:
+*a* (*b* | *c*) *d*, **bold**.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Vt/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.7 2015/09/14 15:35:47 schwarze Exp $
+
+REGRESS_TARGETS = noarg spacing font child
+LINT_TARGETS	= noarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Vt/child.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/child.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/child.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: child.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt VT-CHILD 1
+.Os
+.Sh NAME
+.Nm Vt-child
+.Nd the variable type macro does not want children
+.Sh SYNOPSIS
+.Vt extern Sy int Li errno
+.Sh DESCRIPTION
+various types, for example
+.Vt unsigned Sy int ,
+.Vt long Li int
+and
+.Vt float ,
+.Vt double

Added: vendor/mandoc/dist/regress/mdoc/Vt/child.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/child.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/child.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+VT-CHILD(1)                 General Commands Manual                VT-CHILD(1)
+
+NNAAMMEE
+     VVtt--cchhiilldd - the variable type macro does not want children
+
+SSYYNNOOPPSSIISS
+     _e_x_t_e_r_n iinntt errno
+
+DDEESSCCRRIIPPTTIIOONN
+     various types, for example _u_n_s_i_g_n_e_d iinntt, _l_o_n_g int and _f_l_o_a_t, _d_o_u_b_l_e
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Vt/child.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/child.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/child.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+VT-CHILD(1) - General Commands Manual
+
+# NAME
+
+**Vt-child** - the variable type macro does not want children
+
+# SYNOPSIS
+
+*extern **int** `errno`*
+
+# DESCRIPTION
+
+various types, for example
+*unsigned* **int**,
+*long* `int`
+and
+*float*,
+*double*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Vt/font.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: font.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt VT-FONT 1
+.Os
+.Sh NAME
+.Nm Vt-font
+.Nd changing fonts inside the variable type macro
+.Sh DESCRIPTION
+normal text
+.Vt emphasis\\fBbold\\fPback
+trailing text

Added: vendor/mandoc/dist/regress/mdoc/Vt/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+VT-FONT(1)                  General Commands Manual                 VT-FONT(1)
+
+NNAAMMEE
+     VVtt--ffoonntt - changing fonts inside the variable type macro
+
+DDEESSCCRRIIPPTTIIOONN
+     normal text _e_m_p_h_a_s_i_sbboolldd_b_a_c_k trailing text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Vt/font.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/font.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/font.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+VT-FONT(1) - General Commands Manual
+
+# NAME
+
+**Vt-font** - changing fonts inside the variable type macro
+
+# DESCRIPTION
+
+normal text
+*emphasis**bold**back*
+trailing text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Vt/noarg.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/noarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/noarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: noarg.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt VT-NOARG 1
+.Os
+.Sh NAME
+.Nm Vt-noarg
+.Nd variable type macro without arguments
+.Sh DESCRIPTION
+with arguments
+.Vt signed int.
+no arguments
+.Vt
+end of test document

Added: vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+VT-NOARG(1)                 General Commands Manual                VT-NOARG(1)
+
+NNAAMMEE
+     VVtt--nnooaarrgg - variable type macro without arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     with arguments _s_i_g_n_e_d _i_n_t_. no arguments end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: noarg.in:12:2: WARNING: skipping empty macro: Vt
+mandoc: noarg.in:10:15: STYLE: no blank before trailing delimiter: Vt ... int.

Added: vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/noarg.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+VT-NOARG(1) - General Commands Manual
+
+# NAME
+
+**Vt-noarg** - variable type macro without arguments
+
+# DESCRIPTION
+
+with arguments
+*signed int.*
+no arguments
+end of test document
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Vt/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: spacing.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt VT-SPACING 1
+.Os
+.Sh NAME
+.Nm Vt-spacing
+.Nd spacing around the variable type macro
+.Sh SYNOPSIS
+.Vt extern char **environ
+.Vt extern int errno
+.Sh DESCRIPTION
+various types, for example
+.Vt unsigned int ,
+.Vt long int
+and
+.Vt float ,
+.Vt double

Added: vendor/mandoc/dist/regress/mdoc/Vt/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+VT-SPACING(1)               General Commands Manual              VT-SPACING(1)
+
+NNAAMMEE
+     VVtt--ssppaacciinngg - spacing around the variable type macro
+
+SSYYNNOOPPSSIISS
+     _e_x_t_e_r_n _c_h_a_r _*_*_e_n_v_i_r_o_n
+     _e_x_t_e_r_n _i_n_t _e_r_r_n_o
+
+DDEESSCCRRIIPPTTIIOONN
+     various types, for example _u_n_s_i_g_n_e_d _i_n_t, _l_o_n_g _i_n_t and _f_l_o_a_t, _d_o_u_b_l_e
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Vt/spacing.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Vt/spacing.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Vt/spacing.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+VT-SPACING(1) - General Commands Manual
+
+# NAME
+
+**Vt-spacing** - spacing around the variable type macro
+
+# SYNOPSIS
+
+*extern char \*\*environ*  
+*extern int errno*
+
+# DESCRIPTION
+
+various types, for example
+*unsigned int*,
+*long int*
+and
+*float*,
+*double*
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/Xr/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Xr/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Xr/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+# $OpenBSD: Makefile,v 1.4 2015/02/06 01:07:07 schwarze Exp $
+
+REGRESS_TARGETS	 = args
+
+# OpenBSD only: .Xr target tests cause too much trouble elsewhere
+
+LINT_TARGETS	 = args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/Xr/args.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Xr/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Xr/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: args.in,v 1.10 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt XR-ARGS 1
+.Os
+.Sh NAME
+.Nm Xr-args
+.Nd additional arguments to cross references
+.Sh DESCRIPTION
+One single
+.Xr echo 1
+is fine, and so is an
+.Xr echo 1 followed by something "Em" else .
+.Pp
+But listen for multiple
+.Xr echo 1 Ns s .
+.Pp
+A call, an
+.Xr "(" echo 1 ")" , and
+another
+.Xr echo 1 .
+.Pp
+Finally, an
+.Xr ( echo 1)
+without a blank, half an
+.Xr echo ,
+no blank after half an
+.Xr echo,
+no echo
+.Xr ,
+and no
+.Xr
+echo at all.

Added: vendor/mandoc/dist/regress/mdoc/Xr/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Xr/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Xr/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+XR-ARGS(1)                  General Commands Manual                 XR-ARGS(1)
+
+NNAAMMEE
+     XXrr--aarrggss - additional arguments to cross references
+
+DDEESSCCRRIIPPTTIIOONN
+     One single echo(1) is fine, and so is an echo(1) followed by something
+     _e_l_s_e.
+
+     But listen for multiple echo(1)s.
+
+     A call, an (echo(1)), and another echo(1).
+
+     Finally, an (echo(1)) without a blank, half an echo, no blank after half
+     an echo, no echo and no echo at all.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/Xr/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Xr/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Xr/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+mandoc: args.in:29:2: WARNING: skipping empty macro: Xr
+mandoc: args.in:31:2: WARNING: skipping empty macro: Xr
+mandoc: args.in:23:13: STYLE: no blank before trailing delimiter: Xr ... 1)
+mandoc: args.in:25:2: WARNING: missing section argument: Xr echo
+mandoc: args.in:27:2: WARNING: missing section argument: Xr echo,
+mandoc: args.in:27:9: STYLE: no blank before trailing delimiter: Xr echo,
+mandoc: args.in:23:8: STYLE: referenced manual not found: Xr echo 1)

Added: vendor/mandoc/dist/regress/mdoc/Xr/args.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/Xr/args.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/Xr/args.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+XR-ARGS(1) - General Commands Manual
+
+# NAME
+
+**Xr-args** - additional arguments to cross references
+
+# DESCRIPTION
+
+One single
+echo(1)
+is fine, and so is an
+echo(1) followed by something *else*.
+
+But listen for multiple
+echo(1)s.
+
+A call, an
+(echo(1)), and
+another
+echo(1).
+
+Finally, an
+(echo(1))
+without a blank, half an
+echo,
+no blank after half an
+echo,
+no echo
+and no
+echo at all.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/blank/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+# $OpenBSD: Makefile,v 1.5 2014/07/06 19:08:57 schwarze Exp $
+
+REGRESS_TARGETS = line comment list
+LINT_TARGETS	= line comment list
+
+SKIP_TMAN = list
+SKIP_MARKDOWN ?= line
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/blank/comment.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/comment.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/comment.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: comment.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BLANK-COMMENT 1
+.Os
+.Sh NAME
+.Nm blank-comment
+.Nd normal and bogus comments
+.Sh DESCRIPTION
+normal comment
+.\" normal
+bogus comment
+\."
+end of text
+.Pp
+text      \" comment
+text

Added: vendor/mandoc/dist/regress/mdoc/blank/comment.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/comment.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/comment.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+BLANK-COMMENT(1)            General Commands Manual           BLANK-COMMENT(1)
+
+NNAAMMEE
+     bbllaannkk--ccoommmmeenntt - normal and bogus comments
+
+DDEESSCCRRIIPPTTIIOONN
+     normal comment bogus comment end of text
+
+     text text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/blank/comment.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/comment.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/comment.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: comment.in:12:3: STYLE: bad comment style

Added: vendor/mandoc/dist/regress/mdoc/blank/comment.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/comment.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/comment.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+BLANK-COMMENT(1) - General Commands Manual
+
+# NAME
+
+**blank-comment** - normal and bogus comments
+
+# DESCRIPTION
+
+normal comment
+bogus comment
+end of text
+
+text
+text
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/blank/line.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/line.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/line.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,91 @@
+.\" $OpenBSD: line.in,v 1.6 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BLANK-LINE 1
+.Os
+.Sh NAME
+.Nm blank-line
+.Nd handling of blank line
+.Sh DESCRIPTION
+Single br:
+.br
+Single Pp:
+.Pp
+Single sp:
+.sp
+Single blank:
+
+Double br:
+.br
+.br
+br Pp:
+.br
+.Pp
+Pp br:
+.Pp
+.br
+Double Pp:
+.Pp
+.Pp
+br sp:
+.br
+.sp
+sp br:
+.sp
+.br
+Pp sp:
+.Pp
+.sp
+Pp sp 2v:
+.Pp
+.sp 2v
+sp Pp:
+.sp
+.Pp
+Double sp:
+.sp
+.sp
+br blank:
+.br
+
+blank br:
+
+.br
+Pp blank:
+.Pp
+
+blank Pp:
+
+.Pp
+sp blank:
+.sp
+
+blank sp:
+
+.sp
+Double blank:
+
+
+Bd ragged sp 2v:
+.Bd -ragged -offset 6n
+.sp 2v
+Ed sp 2v:
+.Ed
+.sp 2v
+Bl tag sp 2v:
+.Bl -tag -width 6n
+.It tag
+.sp 2v
+El sp 2v
+.El
+Sh sp 2v:
+.Sh CUSTOM
+.sp 2v
+Pp Sh Pp:
+.Pp
+.Sh CUSTOM TWO
+.Pp
+Ss Pp:
+.Ss Subsection
+.Pp
+End.
+.Pp

Added: vendor/mandoc/dist/regress/mdoc/blank/line.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/line.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/line.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,77 @@
+BLANK-LINE(1)               General Commands Manual              BLANK-LINE(1)
+
+NNAAMMEE
+     bbllaannkk--lliinnee - handling of blank line
+
+DDEESSCCRRIIPPTTIIOONN
+     Single br:
+     Single Pp:
+
+     Single sp:
+
+     Single blank:
+
+     Double br:
+     br Pp:
+
+     Pp br:
+
+     Double Pp:
+
+     br sp:
+
+     sp br:
+
+     Pp sp:
+
+     Pp sp 2v:
+
+     sp Pp:
+
+
+     Double sp:
+
+
+     br blank:
+
+     blank br:
+
+     Pp blank:
+
+     blank Pp:
+
+
+     sp blank:
+
+
+     blank sp:
+
+
+     Double blank:
+
+
+     Bd ragged sp 2v:
+
+
+
+           Ed sp 2v:
+
+
+     Bl tag sp 2v:
+
+     tag
+
+
+             El sp 2v
+     Sh sp 2v:
+
+CCUUSSTTOOMM
+     Pp Sh Pp:
+
+CCUUSSTTOOMM TTWWOO
+     Ss Pp:
+
+   SSuubbsseeccttiioonn
+     End.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/blank/line.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/line.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/line.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+mandoc: line.in:16:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:49:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:51:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:55:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:57:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:61:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:63:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:66:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:67:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:19:2: WARNING: skipping paragraph macro: br after br
+mandoc: line.in:21:2: WARNING: skipping paragraph macro: br before Pp
+mandoc: line.in:25:2: WARNING: skipping paragraph macro: br after Pp
+mandoc: line.in:27:2: WARNING: skipping paragraph macro: Pp before Pp
+mandoc: line.in:34:2: WARNING: skipping paragraph macro: br after sp
+mandoc: line.in:37:2: WARNING: skipping paragraph macro: sp after Pp
+mandoc: line.in:40:2: WARNING: skipping paragraph macro: sp after Pp
+mandoc: line.in:52:2: WARNING: skipping paragraph macro: br after sp
+mandoc: line.in:55:1: WARNING: skipping paragraph macro: sp after Pp
+mandoc: line.in:82:2: WARNING: skipping paragraph macro: sp after Sh
+mandoc: line.in:84:2: WARNING: skipping paragraph macro: Pp at the end of Sh
+mandoc: line.in:86:2: WARNING: skipping paragraph macro: Pp after Sh
+mandoc: line.in:89:2: WARNING: skipping paragraph macro: Pp after Ss
+mandoc: line.in:91:2: WARNING: skipping paragraph macro: Pp at the end of Ss

Added: vendor/mandoc/dist/regress/mdoc/blank/list.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/list.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/list.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,67 @@
+.\" $OpenBSD: list.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BLANK-LIST 1
+.Os
+.Sh NAME
+.Nm blank-list
+.Nd handling of blank lines in lists
+.Sh DESCRIPTION
+normal list:
+.Bl -item -offset indent
+.It
+first item
+.It
+second item
+.El
+list with paragraphs:
+.Bl -item -offset indent
+.It
+first item
+.Pp
+.It
+second item
+.Pp
+.El
+list with final paragraph:
+.Bl -item -offset indent
+.It
+item
+.El
+.Pp
+list with double paragraph:
+.Bl -item -offset indent
+.It
+item
+.Pp
+.El
+.Pp
+normal compact list:
+.Bl -item -compact -offset indent
+.It
+first item
+.It
+second item
+.El
+compact list with paragraphs:
+.Bl -item -compact -offset indent
+.It
+first item
+.Pp
+.It
+second item
+.Pp
+.El
+compact list with final paragraph:
+.Bl -item -compact -offset indent
+.It
+item
+.El
+.Pp
+compact list with double paragraph:
+.Bl -item -compact -offset indent
+.It
+item
+.Pp
+.El
+.Pp
+End.

Added: vendor/mandoc/dist/regress/mdoc/blank/list.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/list.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/list.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+BLANK-LIST(1)               General Commands Manual              BLANK-LIST(1)
+
+NNAAMMEE
+     bbllaannkk--lliisstt - handling of blank lines in lists
+
+DDEESSCCRRIIPPTTIIOONN
+     normal list:
+
+           first item
+
+           second item
+     list with paragraphs:
+
+           first item
+
+           second item
+
+     list with final paragraph:
+
+           item
+
+     list with double paragraph:
+
+           item
+
+     normal compact list:
+           first item
+           second item
+     compact list with paragraphs:
+           first item
+
+           second item
+
+     compact list with final paragraph:
+           item
+
+     compact list with double paragraph:
+           item
+
+     End.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/blank/list.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/list.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/list.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+mandoc: list.in:20:2: WARNING: skipping paragraph macro: Pp before It
+mandoc: list.in:23:2: WARNING: moving paragraph macro out of list: Pp
+mandoc: list.in:35:2: WARNING: moving paragraph macro out of list: Pp
+mandoc: list.in:35:2: WARNING: skipping paragraph macro: Pp before Pp
+mandoc: list.in:52:2: WARNING: moving paragraph macro out of list: Pp
+mandoc: list.in:64:2: WARNING: moving paragraph macro out of list: Pp
+mandoc: list.in:64:2: WARNING: skipping paragraph macro: Pp before Pp

Added: vendor/mandoc/dist/regress/mdoc/blank/list.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/blank/list.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/blank/list.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,50 @@
+BLANK-LIST(1) - General Commands Manual
+
+# NAME
+
+**blank-list** - handling of blank lines in lists
+
+# DESCRIPTION
+
+normal list:
+
+first item
+
+second item
+
+list with paragraphs:
+
+first item
+
+second item
+
+list with final paragraph:
+
+item
+
+list with double paragraph:
+
+item
+
+normal compact list:
+
+first item  
+second item
+
+compact list with paragraphs:
+
+first item
+
+second item
+
+compact list with final paragraph:
+
+item
+
+compact list with double paragraph:
+
+item
+
+End.
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/break/Makefile
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+# $OpenBSD: Makefile,v 1.4 2016/08/20 17:58:09 schwarze Exp $
+
+REGRESS_TARGETS	= brokenbreaker twice tail two notopen
+LINT_TARGETS	= brokenbreaker twice tail two notopen
+
+# It's hard to keep stuff together in next-line scope.
+
+SKIP_TMAN	= tail
+
+# groff-1.22.3 defect:
+# - non-matching enclosure end macro prints a closing delimiter
+
+SKIP_GROFF	= brokenbreaker notopen
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: brokenbreaker.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BREAK-BROKENBREAKER 1
+.Os
+.Sh NAME
+.Nm break-brokenbreaker
+.Nd a broken block breaking another block
+.Sh DESCRIPTION
+.Po po
+.Ao ao pc
+.Pc
+.Bo bo pc
+.Pc ac
+.Ac bc
+.Bc

Added: vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+BREAK-BROKENBREAKER(1)      General Commands Manual     BREAK-BROKENBREAKER(1)
+
+NNAAMMEE
+     bbrreeaakk--bbrrookkeennbbrreeaakkeerr - a broken block breaking another block
+
+DDEESSCCRRIIPPTTIIOONN
+     (po <ao pc) [bo pc ac> bc]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: brokenbreaker.in:11:2: WARNING: blocks badly nested: Po breaks Ao
+mandoc: brokenbreaker.in:13:2: ERROR: skipping end of block that is not open: Pc
+mandoc: brokenbreaker.in:14:2: WARNING: blocks badly nested: Ao breaks Bo

Added: vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/brokenbreaker.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+BREAK-BROKENBREAKER(1) - General Commands Manual
+
+# NAME
+
+**break-brokenbreaker** - a broken block breaking another block
+
+# DESCRIPTION
+
+(po
+<ao pc)
+\[bo pc ac> bc]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/break/notopen.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/notopen.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/notopen.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: notopen.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BREAK-NOTOPEN 1
+.Os
+.Sh NAME
+.Nm break-notopen
+.Nd mismatching end macro inside two open blocks
+.Sh DESCRIPTION
+.Ao ao
+.Bo bo pc
+.Pc bc
+.Bc ac
+.Ac tail

Added: vendor/mandoc/dist/regress/mdoc/break/notopen.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/notopen.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/notopen.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+BREAK-NOTOPEN(1)            General Commands Manual           BREAK-NOTOPEN(1)
+
+NNAAMMEE
+     bbrreeaakk--nnoottooppeenn - mismatching end macro inside two open blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     <ao [bo pc bc] ac> tail
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/break/notopen.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/notopen.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/notopen.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: notopen.in:11:2: ERROR: skipping end of block that is not open: Pc

Added: vendor/mandoc/dist/regress/mdoc/break/notopen.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/notopen.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/notopen.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+BREAK-NOTOPEN(1) - General Commands Manual
+
+# NAME
+
+**break-notopen** - mismatching end macro inside two open blocks
+
+# DESCRIPTION
+
+<ao
+\[bo pc bc]
+ac>
+tail
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/break/tail.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/tail.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/tail.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+.\" $OpenBSD: tail.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BREAK-TAIL 1
+.Os
+.Sh NAME
+.Nm break-tail
+.Nd tail arguments on or after broken blocks
+.Sh DESCRIPTION
+Broken by a partial explicit block:
+.Ao ao
+.Bo bo ac
+.Ac bc
+.Bc tail
+.Ao ao
+.Bo bo ac
+.Ac bc
+.Bc Po po pc
+.Pc tail
+.Pp
+Broken by a partial implicit block:
+.Aq aq Bo bo eol
+.Bc tail
+.Aq aq Bo bo eol
+.Bc Po po pc
+.Pc tail
+.Pp
+Broken by a full implicit block:
+.Bl -tag -width Ds -offset indent
+.It it Ao ao ac
+.Ac tail
+list body
+.El
+.Bl -tag -width Ds -offset indent
+.It it Ao ao ac
+.Ac Po po pc
+.Pc tail
+list body
+.El
+.Pp
+After a broken block: closing child on closing macro,
+then opening child on closing macro:
+.\" Crashed before mdoc_macro.c OpenBSD rev. 1.169
+.Ao ao
+.Bo bo
+.Bro bro
+.Po po brc
+.Brc pc
+.Pc bc Bc ac
+.Ac Op op

Added: vendor/mandoc/dist/regress/mdoc/break/tail.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/tail.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/tail.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+BREAK-TAIL(1)               General Commands Manual              BREAK-TAIL(1)
+
+NNAAMMEE
+     bbrreeaakk--ttaaiill - tail arguments on or after broken blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     Broken by a partial explicit block: <ao [bo ac> bc] tail <ao [bo ac> bc]
+     (po pc) tail
+
+     Broken by a partial implicit block: <aq [bo eol>] tail <aq [bo eol>] (po
+     pc) tail
+
+     Broken by a full implicit block:
+
+           it <ao ac> tail
+                   list body
+
+           it <ao ac> (po pc) tail
+                   list body
+
+     After a broken block: closing child on closing macro, then opening child
+     on closing macro: <ao [bo {bro (po brc} pc) bc] ac> [op]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/break/tail.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/tail.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/tail.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: tail.in:12:2: WARNING: blocks badly nested: Ao breaks Bo
+mandoc: tail.in:16:2: WARNING: blocks badly nested: Ao breaks Bo
+mandoc: tail.in:21:2: WARNING: blocks badly nested: Aq breaks Bo
+mandoc: tail.in:23:2: WARNING: blocks badly nested: Aq breaks Bo
+mandoc: tail.in:47:2: WARNING: blocks badly nested: Bro breaks Po

Added: vendor/mandoc/dist/regress/mdoc/break/tail.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/tail.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/tail.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+BREAK-TAIL(1) - General Commands Manual
+
+# NAME
+
+**break-tail** - tail arguments on or after broken blocks
+
+# DESCRIPTION
+
+Broken by a partial explicit block:
+<ao
+\[bo ac> bc]
+tail
+<ao
+\[bo ac> bc] \(po pc)
+tail
+
+Broken by a partial implicit block:
+<aq \[bo eol>]
+tail
+<aq \[bo eol>] \(po pc)
+tail
+
+Broken by a full implicit block:
+
+it <ao ac>
+tail
+
+> list body
+
+it <ao ac> (po pc)
+tail
+
+> list body
+
+After a broken block: closing child on closing macro,
+then opening child on closing macro:
+<ao
+\[bo
+{bro
+(po brc} pc)
+bc] ac> \[op]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/break/twice.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/twice.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/twice.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+.\" $OpenBSD: twice.in,v 1.4 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BREAK-TWICE 1
+.Os
+.Sh NAME
+.Nm break-twice
+.Nd breaking the same block twice
+.Sh DESCRIPTION
+Standard case, fully explicit:
+.Bo bo
+.Bro bro
+.Ao ao brc
+.Brc bc
+.Bc ac
+.Ac
+.Pp
+Standard case, implicit broken block:
+.Bo bo
+.Bro bro
+.Aq aq brc Brc bc Bc eol
+.Pp
+Two of the same kind, fully explicit:
+.Bo bo
+.Bo bo
+.Ao ao bc
+.Bc bc
+.Bc ac
+.Ac
+.Pp
+Two of the same kind, implicit broken block:
+.Bo bo
+.Bo bo
+.Aq aq bc Bc bc Bc eol
+.Pp
+Two implicit breakers:
+.Bl -dash
+.Aq aq Bq bq Po po
+pc
+.Pc
+.It
+it
+.El

Added: vendor/mandoc/dist/regress/mdoc/break/twice.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/twice.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/twice.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+BREAK-TWICE(1)              General Commands Manual             BREAK-TWICE(1)
+
+NNAAMMEE
+     bbrreeaakk--ttwwiiccee - breaking the same block twice
+
+DDEESSCCRRIIPPTTIIOONN
+     Standard case, fully explicit: [bo {bro <ao brc} bc] ac>
+
+     Standard case, implicit broken block: [bo {bro <aq brc} bc] eol>
+
+     Two of the same kind, fully explicit: [bo [bo <ao bc] bc] ac>
+
+     Two of the same kind, implicit broken block: [bo [bo <aq bc] bc] eol>
+
+     Two implicit breakers: <aq [bq (po]> pc)
+
+     --   it
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/break/twice.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/twice.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/twice.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+mandoc: twice.in:13:2: WARNING: blocks badly nested: Bro breaks Ao
+mandoc: twice.in:14:2: WARNING: blocks badly nested: Bo breaks Ao
+mandoc: twice.in:20:12: WARNING: blocks badly nested: Bro breaks Aq
+mandoc: twice.in:20:19: WARNING: blocks badly nested: Bo breaks Aq
+mandoc: twice.in:26:2: WARNING: blocks badly nested: Bo breaks Ao
+mandoc: twice.in:27:2: WARNING: blocks badly nested: Bo breaks Ao
+mandoc: twice.in:33:11: WARNING: blocks badly nested: Bo breaks Aq
+mandoc: twice.in:33:17: WARNING: blocks badly nested: Bo breaks Aq
+mandoc: twice.in:37:8: WARNING: blocks badly nested: Bq breaks Po
+mandoc: twice.in:37:2: WARNING: blocks badly nested: Aq breaks Po
+mandoc: twice.in:37:2: WARNING: moving content out of list: Aq

Added: vendor/mandoc/dist/regress/mdoc/break/twice.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/twice.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/twice.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+BREAK-TWICE(1) - General Commands Manual
+
+# NAME
+
+**break-twice** - breaking the same block twice
+
+# DESCRIPTION
+
+Standard case, fully explicit:
+\[bo
+{bro
+<ao brc} bc] ac>
+
+Standard case, implicit broken block:
+\[bo
+{bro
+<aq brc} bc] eol>
+
+Two of the same kind, fully explicit:
+\[bo
+\[bo
+<ao bc] bc] ac>
+
+Two of the same kind, implicit broken block:
+\[bo
+\[bo
+<aq bc] bc] eol>
+
+Two implicit breakers:
+<aq \[bq (po]>
+pc)
+
+-	it
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/mdoc/break/two.in
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/two.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/two.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+.\" $OpenBSD: two.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt BREAK-TWO 1
+.Os
+.Sh NAME
+.Nm break-two
+.Nd the same block breaking two other blocks
+.Sh DESCRIPTION
+Standard case, explicit:
+.Ao ao
+.Bo bo
+.Bro bro ac
+.Ac brc
+.Brc bc
+.Bc
+.Pp
+Standard case, implicit:
+.Aq aq Bo bo Bro bro eol
+.Brc bc Bc
+.Pp
+Reverse closing, explicit:
+.Ao ao
+.Bo bo
+.Bro bro ac
+.Ac bc
+.Bc brc
+.Brc
+.Pp
+Reverse closing, implicit:
+.Aq aq Bo bo Bro bro eol
+.Bc brc Brc
+.Pp
+Two of the same kind, explicit:
+.Ao ao
+.Bo bo
+.Bo bo ac
+.Ac bc
+.Bc bc
+.Bc
+.Pp
+Two of the same kind, implicit:
+.Aq aq Bo bo Bo bo eol
+.Bc bc Bc

Added: vendor/mandoc/dist/regress/mdoc/break/two.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/two.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/two.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+BREAK-TWO(1)                General Commands Manual               BREAK-TWO(1)
+
+NNAAMMEE
+     bbrreeaakk--ttwwoo - the same block breaking two other blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     Standard case, explicit: <ao [bo {bro ac> brc} bc]
+
+     Standard case, implicit: <aq [bo {bro eol>} bc]
+
+     Reverse closing, explicit: <ao [bo {bro ac> bc] brc}
+
+     Reverse closing, implicit: <aq [bo {bro eol>] brc}
+
+     Two of the same kind, explicit: <ao [bo [bo ac> bc] bc]
+
+     Two of the same kind, implicit: <aq [bo [bo eol>] bc]
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/mdoc/break/two.out_lint
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/two.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/two.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+mandoc: two.in:13:2: WARNING: blocks badly nested: Ao breaks Bro
+mandoc: two.in:18:2: WARNING: blocks badly nested: Aq breaks Bro
+mandoc: two.in:25:2: WARNING: blocks badly nested: Ao breaks Bro
+mandoc: two.in:26:2: WARNING: blocks badly nested: Bo breaks Bro
+mandoc: two.in:30:2: WARNING: blocks badly nested: Aq breaks Bro
+mandoc: two.in:31:2: WARNING: blocks badly nested: Bo breaks Bro
+mandoc: two.in:37:2: WARNING: blocks badly nested: Ao breaks Bo
+mandoc: two.in:42:2: WARNING: blocks badly nested: Aq breaks Bo

Added: vendor/mandoc/dist/regress/mdoc/break/two.out_markdown
===================================================================
--- vendor/mandoc/dist/regress/mdoc/break/two.out_markdown	                        (rev 0)
+++ vendor/mandoc/dist/regress/mdoc/break/two.out_markdown	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+BREAK-TWO(1) - General Commands Manual
+
+# NAME
+
+**break-two** - the same block breaking two other blocks
+
+# DESCRIPTION
+
+Standard case, explicit:
+<ao
+\[bo
+{bro ac> brc}
+bc]
+
+Standard case, implicit:
+<aq \[bo {bro eol>}
+bc]
+
+Reverse closing, explicit:
+<ao
+\[bo
+{bro ac> bc] brc}
+
+Reverse closing, implicit:
+<aq \[bo {bro eol>] brc}
+
+Two of the same kind, explicit:
+<ao
+\[bo
+\[bo ac> bc]
+bc]
+
+Two of the same kind, implicit:
+<aq \[bo \[bo eol>]
+bc]
+
+OpenBSD - July 4, 2017

Added: vendor/mandoc/dist/regress/regress.pl
===================================================================
--- vendor/mandoc/dist/regress/regress.pl	                        (rev 0)
+++ vendor/mandoc/dist/regress/regress.pl	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,434 @@
+#!/usr/bin/env perl
+#
+# $Id: regress.pl,v 1.8 2017/07/18 18:47:06 schwarze Exp $
+#
+# Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+use warnings;
+use strict;
+
+# Used because open(3p) and open2(3p) provide no way for handling
+# STDERR of the child process, neither for appending it to STDOUT,
+# nor for piping it into the Perl program.
+use IPC::Open3 qw(open3);
+
+# Define this at one place such that it can easily be changed
+# if diff(1) does not support the -a option.
+my @diff = qw(diff -au);
+
+# --- utility functions ------------------------------------------------
+
+sub usage ($) {
+	warn shift;
+	print STDERR "usage: $0 [directory[:test] [modifier ...]]\n";
+	exit 1;
+}
+
+# Modifier arguments provided on the command line,
+# inspected by the main program and by the utility functions.
+my %targets;
+
+# Run a command and send STDOUT and STDERR to a file.
+# 1st argument: path to the output file
+# 2nd argument: command name
+# The remaining arguments are passed to the command.
+sub sysout ($@) {
+	my $outfile = shift;
+	print "@_\n" if $targets{verbose};
+	local *OUT_FH;
+	open OUT_FH, '>', $outfile or die "$outfile: $!";
+	my $pid = open3 undef, ">&OUT_FH", undef, @_;
+	close OUT_FH;
+	waitpid $pid, 0;
+	return $? >> 8;
+}
+
+# Simlar, but filter the output as needed for the lint test.
+sub syslint ($@) {
+	my $outfile = shift;
+	print "@_\n" if $targets{verbose};
+	open my $outfd, '>', $outfile or die "$outfile: $!";
+	my $infd;
+	my $pid = open3 undef, $infd, undef, @_;
+	while (<$infd>) {
+		s/^mandoc: [^:]+\//mandoc: /;
+		print $outfd $_;
+	}
+	close $outfd;
+	close $infd;
+	waitpid $pid, 0;
+	return 0;
+}
+
+# Simlar, but filter the output as needed for the html test.
+sub syshtml ($@) {
+	my $outfile = shift;
+	print "@_\n" if $targets{verbose};
+	open my $outfd, '>', $outfile or die "$outfile: $!";
+	my $infd;
+	my $pid = open3 undef, $infd, undef, @_;
+	my $state;
+	while (<$infd>) {
+		chomp;
+		if (!$state && s/.*<math class="eqn">//) {
+			$state = 1;
+			next unless length;
+		}
+		$state = 1 if /^BEGINTEST/;
+		if ($state && s/<\/math>.*//) {
+			s/^ *//;
+			print $outfd "$_\n" if length;
+			undef $state;
+			next;
+		}
+		s/^ *//;
+		print $outfd "$_\n" if $state;
+		undef $state if /^ENDTEST/;
+	}
+	close $outfd;
+	close $infd;
+	waitpid $pid, 0;
+	return 0;
+}
+
+my @failures;
+sub fail ($$) {
+	warn "FAILED: @_\n";
+	push @failures, [@_];
+}
+
+
+# --- process command line arguments -----------------------------------
+
+my $onlytest = shift // '';
+for (@ARGV) {
+	/^(all|ascii|utf8|man|html|markdown|lint|clean|verbose)$/
+	    or usage "$_: invalid modifier";
+	$targets{$_} = 1;
+}
+$targets{all} = 1
+    unless $targets{ascii} || $targets{utf8} || $targets{man} ||
+      $targets{html} || $targets{markdown} ||
+      $targets{lint} || $targets{clean};
+$targets{ascii} = $targets{utf8} = $targets{man} = $targets{html} =
+    $targets{markdown} = $targets{lint} = 1 if $targets{all};
+
+
+# --- parse Makefiles --------------------------------------------------
+
+sub parse_makefile ($%) {
+	my ($filename, $vars) = @_;
+	open my $fh, '<', $filename or die "$filename: $!";
+	while (<$fh>) {
+		chomp;
+		next unless /\S/;
+		last if /^# OpenBSD only/;
+		next if /^#/;
+		next if /^\.include/;
+		/^(\w+)\s*([?+]?)=\s*(.*)/
+		    or die "$filename: parse error: $_";
+		my $var = $1;
+		my $opt = $2;
+		my $val = $3;
+		$val =~ s/\$\{(\w+)\}/$vars->{$1}/;
+		$val = "$vars->{$var} $val" if $opt eq '+';
+		$vars->{$var} = $val
+		    unless $opt eq '?' && defined $vars->{$var};
+	}
+	close $fh;
+}
+
+my (@regress_tests, @utf8_tests, @lint_tests, @html_tests);
+my (%skip_ascii, %skip_man, %skip_markdown);
+foreach my $module (qw(roff char mdoc man tbl eqn)) {
+	my %modvars;
+	parse_makefile "$module/Makefile", \%modvars;
+	foreach my $subdir (split ' ', $modvars{SUBDIR}) {
+		my %subvars = (MOPTS => '');
+		parse_makefile "$module/$subdir/Makefile", \%subvars;
+		parse_makefile "$module/Makefile.inc", \%subvars;
+		delete $subvars{SKIP_GROFF};
+		delete $subvars{SKIP_GROFF_ASCII};
+		delete $subvars{TBL};
+		delete $subvars{EQN};
+		my @mandoc = ('../mandoc', split ' ', $subvars{MOPTS});
+		delete $subvars{MOPTS};
+		my @regress_testnames;
+		if (defined $subvars{REGRESS_TARGETS}) {
+			push @regress_testnames,
+			    split ' ', $subvars{REGRESS_TARGETS};
+			push @regress_tests, {
+			    NAME => "$module/$subdir/$_",
+			    MANDOC => \@mandoc,
+			} foreach @regress_testnames;
+			delete $subvars{REGRESS_TARGETS};
+		}
+		if (defined $subvars{UTF8_TARGETS}) {
+			push @utf8_tests, {
+			    NAME => "$module/$subdir/$_",
+			    MANDOC => \@mandoc,
+			} foreach split ' ', $subvars{UTF8_TARGETS};
+			delete $subvars{UTF8_TARGETS};
+		}
+		if (defined $subvars{HTML_TARGETS}) {
+			push @html_tests, {
+			    NAME => "$module/$subdir/$_",
+			    MANDOC => \@mandoc,
+			} foreach split ' ', $subvars{HTML_TARGETS};
+			delete $subvars{HTML_TARGETS};
+		}
+		if (defined $subvars{LINT_TARGETS}) {
+			push @lint_tests, {
+			    NAME => "$module/$subdir/$_",
+			    MANDOC => \@mandoc,
+			} foreach split ' ', $subvars{LINT_TARGETS};
+			delete $subvars{LINT_TARGETS};
+		}
+		if (defined $subvars{SKIP_ASCII}) {
+			for (split ' ', $subvars{SKIP_ASCII}) {
+				$skip_ascii{"$module/$subdir/$_"} = 1;
+				$skip_man{"$module/$subdir/$_"} = 1;
+			}
+			delete $subvars{SKIP_ASCII};
+		}
+		if (defined $subvars{SKIP_TMAN}) {
+			$skip_man{"$module/$subdir/$_"} = 1
+			    for split ' ', $subvars{SKIP_TMAN};
+			delete $subvars{SKIP_TMAN};
+		}
+		if (defined $subvars{SKIP_MARKDOWN}) {
+			$skip_markdown{"$module/$subdir/$_"} = 1
+			    for split ' ', $subvars{SKIP_MARKDOWN};
+			delete $subvars{SKIP_MARKDOWN};
+		}
+		if (keys %subvars) {
+			my @vars = keys %subvars;
+			die "unknown var(s) @vars in dir $module/$subdir";
+		}
+		map {
+			$skip_ascii{"$module/$subdir/$_"} = 1;
+		} @regress_testnames if $skip_ascii{"$module/$subdir/ALL"};
+		map {
+			$skip_man{"$module/$subdir/$_"} = 1;
+		} @regress_testnames if $skip_man{"$module/$subdir/ALL"};
+		map {
+			$skip_markdown{"$module/$subdir/$_"} = 1;
+		} @regress_testnames if $skip_markdown{"$module/$subdir/ALL"};
+	}
+	delete $modvars{SUBDIR};
+	if (keys %modvars) {
+		my @vars = keys %modvars;
+		die "unknown var(s) @vars in module $module";
+	}
+}
+
+# --- run targets ------------------------------------------------------
+
+my $count_total = 0;
+my $count_ascii = 0;
+my $count_man = 0;
+my $count_rm = 0;
+if ($targets{ascii} || $targets{man}) {
+	print "Running ascii and man tests ";
+	print "...\n" if $targets{verbose};
+}
+for my $test (@regress_tests) {
+	my $i = "$test->{NAME}.in";
+	my $o = "$test->{NAME}.mandoc_ascii";
+	my $w = "$test->{NAME}.out_ascii";
+	if ($targets{ascii} && !$skip_ascii{$test->{NAME}} &&
+	    $test->{NAME} =~ /^$onlytest/) {
+		$count_ascii++;
+		$count_total++;
+		sysout $o, @{$test->{MANDOC}}, qw(-I os=OpenBSD -T ascii), $i
+		    and fail $test->{NAME}, 'ascii:mandoc';
+		system @diff, $w, $o
+		    and fail $test->{NAME}, 'ascii:diff';
+		print "." unless $targets{verbose};
+	}
+	my $m = "$test->{NAME}.in_man";
+	my $mo = "$test->{NAME}.mandoc_man";
+	if ($targets{man} && !$skip_man{$test->{NAME}} &&
+	    $test->{NAME} =~ /^$onlytest/) {
+		$count_man++;
+		$count_total++;
+		sysout $m, @{$test->{MANDOC}}, qw(-I os=OpenBSD -T man), $i
+		    and fail $test->{NAME}, 'man:man';
+		sysout $mo, @{$test->{MANDOC}},
+		    qw(-man -I os=OpenBSD -T ascii -O mdoc), $m
+		    and fail $test->{NAME}, 'man:mandoc';
+		system @diff, $w, $mo
+		    and fail $test->{NAME}, 'man:diff';
+		print "." unless $targets{verbose};
+	}
+	if ($targets{clean}) {
+		print "rm $o $m $mo\n" if $targets{verbose};
+		$count_rm += unlink $o, $m, $mo;
+	}
+}
+if ($targets{ascii} || $targets{man}) {
+	print "Number of ascii and man tests:" if $targets{verbose};
+	print " $count_ascii + $count_man tests run.\n";
+}
+
+my $count_utf8 = 0;
+if ($targets{utf8}) {
+	print "Running utf8 tests ";
+	print "...\n" if $targets{verbose};
+}
+for my $test (@utf8_tests) {
+	my $i = "$test->{NAME}.in";
+	my $o = "$test->{NAME}.mandoc_utf8";
+	my $w = "$test->{NAME}.out_utf8";
+	if ($targets{utf8} && $test->{NAME} =~ /^$onlytest/o) {
+		$count_utf8++;
+		$count_total++;
+		sysout $o, @{$test->{MANDOC}}, qw(-I os=OpenBSD -T utf8), $i
+		    and fail $test->{NAME}, 'utf8:mandoc';
+		system @diff, $w, $o
+		    and fail $test->{NAME}, 'utf8:diff';
+		print "." unless $targets{verbose};
+	}
+	if ($targets{clean}) {
+		print "rm $o\n" if $targets{verbose};
+		$count_rm += unlink $o;
+	}
+}
+if ($targets{utf8}) {
+	print "Number of utf8 tests:" if $targets{verbose};
+	print " $count_utf8 tests run.\n";
+}
+
+my $count_html = 0;
+if ($targets{html}) {
+	print "Running html tests ";
+	print "...\n" if $targets{verbose};
+}
+for my $test (@html_tests) {
+	my $i = "$test->{NAME}.in";
+	my $o = "$test->{NAME}.mandoc_html";
+	my $w = "$test->{NAME}.out_html";
+	if ($targets{html} && $test->{NAME} =~ /^$onlytest/) {
+		$count_html++;
+		$count_total++;
+		syshtml $o, @{$test->{MANDOC}}, qw(-T html), $i
+		    and fail $test->{NAME}, 'html:mandoc';
+		system @diff, $w, $o
+		    and fail $test->{NAME}, 'html:diff';
+		print "." unless $targets{verbose};
+	}
+	if ($targets{clean}) {
+		print "rm $o\n" if $targets{verbose};
+		$count_rm += unlink $o;
+	}
+}
+if ($targets{html}) {
+	print "Number of html tests:" if $targets{verbose};
+	print " $count_html tests run.\n";
+}
+
+my $count_markdown = 0;
+if ($targets{markdown}) {
+	print "Running markdown tests ";
+	print "...\n" if $targets{verbose};
+}
+for my $test (@regress_tests) {
+	my $i = "$test->{NAME}.in";
+	my $o = "$test->{NAME}.mandoc_markdown";
+	my $w = "$test->{NAME}.out_markdown";
+	if ($targets{markdown} && !$skip_markdown{$test->{NAME}} &&
+	    $test->{NAME} =~ /^$onlytest/) {
+		$count_markdown++;
+		$count_total++;
+		sysout $o, @{$test->{MANDOC}},
+		    qw(-I os=OpenBSD -T markdown), $i
+		    and fail $test->{NAME}, 'markdown:mandoc';
+		system @diff, $w, $o
+		    and fail $test->{NAME}, 'markdown:diff';
+		print "." unless $targets{verbose};
+	}
+	if ($targets{clean}) {
+		print "rm $o\n" if $targets{verbose};
+		$count_rm += unlink $o;
+	}
+}
+if ($targets{markdown}) {
+	print "Number of markdown tests:" if $targets{verbose};
+	print " $count_markdown tests run.\n";
+}
+
+my $count_lint = 0;
+if ($targets{lint}) {
+	print "Running lint tests ";
+	print "...\n" if $targets{verbose};
+}
+for my $test (@lint_tests) {
+	my $i = "$test->{NAME}.in";
+	my $o = "$test->{NAME}.mandoc_lint";
+	my $w = "$test->{NAME}.out_lint";
+	if ($targets{lint} && $test->{NAME} =~ /^$onlytest/) {
+		$count_lint++;
+		$count_total++;
+		syslint $o, @{$test->{MANDOC}},
+		    qw(-I os=OpenBSD -T lint -W all), $i
+		    and fail $test->{NAME}, 'lint:mandoc';
+		system @diff, $w, $o
+		    and fail $test->{NAME}, 'lint:diff';
+		print "." unless $targets{verbose};
+	}
+	if ($targets{clean}) {
+		print "rm $o\n" if $targets{verbose};
+		$count_rm += unlink $o;
+	}
+}
+if ($targets{lint}) {
+	print "Number of lint tests:" if $targets{verbose};
+	print " $count_lint tests run.\n";
+}
+
+# --- final report -----------------------------------------------------
+
+if (@failures) {
+	print "\nNUMBER OF FAILED TESTS: ", scalar @failures,
+	    " (of $count_total tests run.)\n";
+	print "@$_\n" for @failures;
+	print "\n";
+	exit 1;
+}
+print "\n" if $targets{verbose};
+if ($count_total == 1) {
+	print "Test succeeded.\n";
+} elsif ($count_total) {
+	print "All $count_total tests OK:";
+	print " $count_ascii ascii" if $count_ascii;
+	print " $count_man man" if $count_man;
+	print " $count_utf8 utf8" if $count_utf8;
+	print " $count_html html" if $count_html;
+	print " $count_markdown markdown" if $count_markdown;
+	print " $count_lint lint" if $count_lint;
+	print "\n";
+} else {
+	print "No tests were run.\n";
+} 
+if ($targets{clean}) {
+	if ($count_rm) {
+		print "Deleted $count_rm test output files.\n";
+		print "The tree is now clean.\n";
+	} else {
+		print "No test output files were found.\n";
+		print "The tree was already clean.\n";
+	}
+}
+exit 0;

Added: vendor/mandoc/dist/regress/regress.pl.1
===================================================================
--- vendor/mandoc/dist/regress/regress.pl.1	                        (rev 0)
+++ vendor/mandoc/dist/regress/regress.pl.1	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,147 @@
+.\"	$Id: regress.pl.1,v 1.3 2017/07/18 18:47:06 schwarze Exp $
+.\"
+.\" Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 18 2017 $
+.Dt REGRESS.PL 1
+.Os
+.Sh NAME
+.Nm regress.pl
+.Nd portable steering script for mandoc regression tests
+.Sh SYNOPSIS
+.Nm ./regress.pl
+.Oo
+.Ar directory Ns Op Pf / Ar test
+.Op Ar modifier ...
+.Oc
+.Sh DESCRIPTION
+The
+.Nm
+steering script allows running the
+.Xr mandoc 1
+regression suite on arbitrary operating systems,
+even though the suite was originally designed for OpenBSD only.
+.Pp
+When run without an argument,
+.Nm
+runs the complete regression suite.
+.Pp
+The first argument is a Perl regular expression to match test names,
+automatically anchored at the beginning of the names.
+Test names are names of test input files without the file name extension
+.Pa .in ,
+for example
+.Pa char/unicode/named .
+.Pp
+Any additional arguments modify the way the tests are run.
+The default is
+.Cm all .
+The following modifiers are available:
+.Bl -tag -width markdown
+.It Cm all
+Run all kinds of subtests.
+This implies all other modifiers except
+.Cm verbose
+and
+.Cm clean .
+.It Cm ascii
+Run subtests for
+.Fl T Cm ascii
+output mode.
+.It Cm clean
+Remove all output files created by running the tests.
+.It Cm html
+Run subtests for
+.Fl T Cm html
+output mode.
+.It Cm lint
+Run subtests for
+.Fl T Cm lint
+warning and error output.
+.It Cm man
+Run subtests for
+.Fl T Cm man
+output mode.
+.It Cm markdown
+Run subtests for
+.Fl T Cm markdown
+output mode.
+.It Cm utf8
+Run subtests for
+.Fl T Cm utf8
+output mode.
+.It Cm verbose
+Display approximate indications of what is being done.
+.El
+.Sh EXIT STATUS
+.Ex -std
+.Sh EXAMPLES
+The recommended invocation for casual users:
+.Pp
+.Dl ./regress.pl
+.Pp
+Maximum output:
+.Pp
+.Dl ./regress.pl \&. verbose
+.Pp
+Complete check, but keep the tree clean:
+.Pp
+.Dl ./regress.pl \&. all clean
+.Pp
+Investigate a specific failure:
+.Pp
+.Dl ./regress.pl mdoc/Bd/broken man verbose
+.Sh HISTORY
+The
+.Nm
+script appeared in release 1.14.1 of the portable
+.Sy mandoc
+distribution.
+.Sh AUTHORS
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org
+.Sh CAVEATS
+This script is not optimized for elegance.
+Regression suites for other software should not copy the design.
+.Pp
+The problem it solves is that the
+.Sy mandoc
+regression suite is tightly integrated into the regression
+testing system of the OpenBSD base system, which requires
+both OpenBSD
+.Xr make 1 ,
+working neither with POSIX make nor with GNU make, and which
+also requires the OpenBSD-specific Makefile fragments in
+.Pa /usr/share/mk .
+The workaround of parsing the Makefiles by hand and constructing
+the required command lines by hand is unavoidably messy; it's
+the classic no-no of parsing a language with an ad-hoc incomplete
+parser.
+But the problem of providing this regression suite for other
+operating systems stood unsolved for many years, and no cleaner
+solution was found that could be implemented with reasonable effort.
+So maybe this is better than nothing.
+.Pp
+The top-level Makefiles for running this regression suite on
+OpenBSD are not included in the portable distribution.
+They are too OpenBSD-specific to be useful elsewhere,
+and on OpenBSD itself, the suite ought be run natively from
+.Pa /usr/src/regress/usr.bin/mandoc
+and not from the portable distribution.
+.Pp
+The
+.Pa db
+subdirectory of the regression suite is not included.
+It uses a Makefile structure that differs vastly from the
+rest of the suite.

Added: vendor/mandoc/dist/regress/roff/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.20 2015/02/06 16:05:51 schwarze Exp $
+
+SUBDIR  = args cond esc scale string
+SUBDIR += br cc de ds ft ig it ll na nr po ps rm rn sp ta ti tr
+
+.include "../Makefile.sub"
+.include <bsd.subdir.mk>

Added: vendor/mandoc/dist/regress/roff/Makefile.inc
===================================================================
--- vendor/mandoc/dist/regress/roff/Makefile.inc	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/Makefile.inc	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile.inc,v 1.3 2015/02/03 19:37:25 schwarze Exp $
+
+SKIP_TMAN ?= ALL
+SKIP_MARKDOWN ?= ALL
+
+.include "../Makefile.inc"

Added: vendor/mandoc/dist/regress/roff/args/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/args/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.4 2014/07/06 19:08:57 schwarze Exp $
+
+REGRESS_TARGETS = roff man mdoc
+LINT_TARGETS	= roff man mdoc
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/args/man.in
===================================================================
--- vendor/mandoc/dist/regress/roff/args/man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,135 @@
+.\" $OpenBSD: man.in,v 1.5 2017/07/04 14:53:26 schwarze Exp $
+.TH ARGS-MAN 1 "November 19, 2014"
+.SH NAME
+args-man - arguments to man macros
+.SH DESCRIPTION
+standard unquoted:
+.IB one two
+text
+.br
+escaped blanks:
+.IB one\ one two\ two
+text
+.br
+escaped 'e' character:
+.IB one\eone two
+text
+.br
+.\"escaped backslash before blank:
+.\"IB one\\ two
+.\"text
+.\"br
+escaped backslash before 'e' character:
+.IB one\\e two
+text
+.br
+double inter-argument space:
+.IB one  two
+text
+.br
+triple inter-argument space:
+.IB one   two
+text
+.br
+single eol blank:
+.IB one two 
+text
+.br
+double eol blank:
+.IB one two  
+text
+.br
+triple eol blank:
+.IB one two   
+text
+.br
+standard quoted:
+.IB "one" "two"
+text
+.br
+quoted quotes:
+.IB "one""one" """two"""
+text
+.br
+quoted whitespace:
+.IB "one one" "two two"
+text
+.br
+escaped 'e' characters:
+.IB "one \e one" "\e"
+text
+.br
+escaped backslash before blank:
+.IB "one\\ one" "\\ "
+text
+.br
+escaped backslash before 'e' character:
+.IB "one\\eone" "\\e"
+text
+.br
+double inter-argument space:
+.IB "one one"  "two two"
+text
+.br
+triple inter-argument space:
+.IB "one one"   "two two"
+text
+.br
+missing inter-argument space:
+.IB "one one"two\ two
+text
+.br
+single eol blank:
+.IB "one one" "two two" 
+text
+.br
+double eol blank:
+.IB "one one" "two two"  
+text
+.br
+triple eol blank:
+.IB "one one" "two two"   
+text
+.br
+.\" Disabled for now because mandoc man(7) seems to
+.\" mishandle trailing blanks in arguments,
+.\" but that really isn't urgent to fix.
+.ig
+trailing blanks in arguments:
+.IB "one " "two "
+text
+.br
+..
+unterminated quotes:
+.IB "one
+text
+.br
+.IB one "two
+text
+.br
+.ig
+single trailing blank in unterminated quotes:
+.IB "one 
+text
+.br
+.IB one "two 
+text
+.br
+double trailing blank in unterminated quotes:
+.IB "one  
+text
+.br
+.IB one "two  
+text
+.br
+..
+tab after macro:
+.IB     one two
+text
+.br
+escape sequence after macro:
+.IB\(lqone two
+text
+.br
+backslash at eol:
+.IB one two\

Added: vendor/mandoc/dist/regress/roff/args/man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/args/man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,38 @@
+ARGS-MAN(1)                 General Commands Manual                ARGS-MAN(1)
+
+
+
+NNAAMMEE
+       args-man - arguments to man macros
+
+DDEESSCCRRIIPPTTIIOONN
+       standard unquoted: _o_n_ettwwoo text
+       escaped blanks: _o_n_e _o_n_ettwwoo ttwwoo text
+       escaped 'e' character: _o_n_e_\_o_n_ettwwoo text
+       escaped backslash before 'e' character: _o_n_e_\ttwwoo text
+       double inter-argument space: _o_n_ettwwoo text
+       triple inter-argument space: _o_n_ettwwoo text
+       single eol blank: _o_n_ettwwoo text
+       double eol blank: _o_n_ettwwoo text
+       triple eol blank: _o_n_ettwwoo text
+       standard quoted: _o_n_ettwwoo text
+       quoted quotes: _o_n_e_"_o_n_e""ttwwoo"" text
+       quoted whitespace: _o_n_e _o_n_ettwwoo ttwwoo text
+       escaped 'e' characters: _o_n_e _\ _o_n_e\\ text
+       escaped backslash before blank: _o_n_e _o_n_e  text
+       escaped backslash before 'e' character: _o_n_e_\_o_n_e\\ text
+       double inter-argument space: _o_n_e _o_n_ettwwoo ttwwoo text
+       triple inter-argument space: _o_n_e _o_n_ettwwoo ttwwoo text
+       missing inter-argument space: _o_n_e _o_n_ettwwoo ttwwoo text
+       single eol blank: _o_n_e _o_n_ettwwoo ttwwoo text
+       double eol blank: _o_n_e _o_n_ettwwoo ttwwoo text
+       triple eol blank: _o_n_e _o_n_ettwwoo ttwwoo text
+       unterminated quotes: _o_n_e text
+       _o_n_ettwwoo text
+       tab after macro: _o_n_ettwwoo text
+       escape sequence after macro: _o_n_ettwwoo text
+       backslash at eol: _o_n_ettwwoo
+
+
+
+OpenBSD                        November 19, 2014                   ARGS-MAN(1)

Added: vendor/mandoc/dist/regress/roff/args/man.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/args/man.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/man.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+mandoc: man.in:35:13: STYLE: whitespace at end of input line
+mandoc: man.in:39:14: STYLE: whitespace at end of input line
+mandoc: man.in:43:15: STYLE: whitespace at end of input line
+mandoc: man.in:83:25: STYLE: whitespace at end of input line
+mandoc: man.in:87:26: STYLE: whitespace at end of input line
+mandoc: man.in:91:27: STYLE: whitespace at end of input line
+mandoc: man.in:104:5: STYLE: unterminated quoted argument
+mandoc: man.in:107:9: STYLE: unterminated quoted argument
+mandoc: man.in:131:1: ERROR: escaped character not allowed in a name: IB\(

Added: vendor/mandoc/dist/regress/roff/args/mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/args/mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,125 @@
+.\" $OpenBSD: mdoc.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ARGS-MDOC 1
+.Os
+.Sh NAME
+.Nm args-mdoc
+.Nd arguments to mdoc macros
+.Sh DESCRIPTION
+standard unquoted:
+.Fl one two
+text
+.br
+escaped blanks:
+.Fl one\ one two\ two
+text
+.br
+escaped 'e' character:
+.Fl one\eone two
+text
+.br
+.\"escaped backslash before blank:
+.\"Fl one\\ two
+.\"text
+.\"br
+escaped backslash before 'e' character:
+.Fl one\\e two
+text
+.br
+double inter-argument space:
+.Fl one  two
+text
+.br
+triple inter-argument space:
+.Fl one   two
+text
+.br
+single eol blank:
+.Fl one two 
+text
+.br
+double eol blank:
+.Fl one two  
+text
+.br
+triple eol blank:
+.Fl one two   
+text
+.br
+standard quoted:
+.Fl "one" "two"
+text
+.br
+quoted quotes:
+.Fl "one""one" """two"""
+text
+.br
+quoted whitespace:
+.Fl "one one" "two two"
+text
+.br
+escaped 'e' characters:
+.Fl "one \e one" "\e"
+text
+.br
+.\"escaped backslash before blank:
+.\"Fl "one\\ one" "\\ "
+.\"text
+.\"br
+.\"escaped backslash before 'e' character:
+.\"Fl "one\\eone" "\\e"
+.\"text
+.\"br
+double inter-argument space:
+.Fl "one one"  "two two"
+text
+.br
+triple inter-argument space:
+.Fl "one one"   "two two"
+text
+.br
+missing inter-argument space:
+.Fl "one one"two\ two
+text
+.br
+single eol blank:
+.Fl "one one" "two two" 
+text
+.br
+double eol blank:
+.Fl "one one" "two two"  
+text
+.br
+triple eol blank:
+.Fl "one one" "two two"   
+text
+.br
+trailing blanks in arguments:
+.Fl "one " "two "
+text
+.br
+unterminated quotes:
+.Fl "one
+.Fl one "two
+text
+.br
+single trailing blank in unterminated quotes:
+.Fl "one 
+.Fl one "two 
+text
+.br
+double trailing blank in unterminated quotes:
+.Fl "one  
+.Fl one "two  
+text
+.br
+tab after macro:
+.Fl	one two
+text
+.br
+escape sequence after macro:
+.Fl\(lqone two
+text
+.br
+backslash at eol:
+.Fl one two\

Added: vendor/mandoc/dist/regress/roff/args/mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/args/mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+ARGS-MDOC(1)                General Commands Manual               ARGS-MDOC(1)
+
+NNAAMMEE
+     aarrggss--mmddoocc - arguments to mdoc macros
+
+DDEESSCCRRIIPPTTIIOONN
+     standard unquoted: --oonnee --ttwwoo text
+     escaped blanks: --oonnee oonnee --ttwwoo ttwwoo text
+     escaped 'e' character: --oonnee\\oonnee --ttwwoo text
+     escaped backslash before 'e' character: --oonnee\\ --ttwwoo text
+     double inter-argument space: --oonnee --ttwwoo text
+     triple inter-argument space: --oonnee --ttwwoo text
+     single eol blank: --oonnee --ttwwoo text
+     double eol blank: --oonnee --ttwwoo text
+     triple eol blank: --oonnee --ttwwoo text
+     standard quoted: --oonnee --ttwwoo text
+     quoted quotes: --oonnee""oonnee --""ttwwoo"" text
+     quoted whitespace: --oonnee oonnee --ttwwoo ttwwoo text
+     escaped 'e' characters: --oonnee \\ oonnee --\\ text
+     double inter-argument space: --oonnee oonnee --ttwwoo ttwwoo text
+     triple inter-argument space: --oonnee oonnee --ttwwoo ttwwoo text
+     missing inter-argument space: --oonnee oonnee --ttwwoo ttwwoo text
+     single eol blank: --oonnee oonnee --ttwwoo ttwwoo text
+     double eol blank: --oonnee oonnee --ttwwoo ttwwoo text
+     triple eol blank: --oonnee oonnee --ttwwoo ttwwoo text
+     trailing blanks in arguments: --oonnee  --ttwwoo  text
+     unterminated quotes: --oonnee --oonnee --ttwwoo text
+     single trailing blank in unterminated quotes: --oonnee  --oonnee --ttwwoo  text
+     double trailing blank in unterminated quotes: --oonnee   --oonnee --ttwwoo   text
+     tab after macro: --oonnee --ttwwoo text
+     escape sequence after macro: --oonnee --ttwwoo text
+     backslash at eol: --oonnee --ttwwoo
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/args/mdoc.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/args/mdoc.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/mdoc.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+mandoc: mdoc.in:38:13: STYLE: whitespace at end of input line
+mandoc: mdoc.in:42:14: STYLE: whitespace at end of input line
+mandoc: mdoc.in:46:15: STYLE: whitespace at end of input line
+mandoc: mdoc.in:86:25: STYLE: whitespace at end of input line
+mandoc: mdoc.in:90:26: STYLE: whitespace at end of input line
+mandoc: mdoc.in:94:27: STYLE: whitespace at end of input line
+mandoc: mdoc.in:102:9: STYLE: unterminated quoted argument
+mandoc: mdoc.in:103:13: STYLE: unterminated quoted argument
+mandoc: mdoc.in:107:10: STYLE: unterminated quoted argument
+mandoc: mdoc.in:108:14: STYLE: unterminated quoted argument
+mandoc: mdoc.in:112:11: STYLE: unterminated quoted argument
+mandoc: mdoc.in:113:15: STYLE: unterminated quoted argument
+mandoc: mdoc.in:121:1: ERROR: escaped character not allowed in a name: Fl\(

Added: vendor/mandoc/dist/regress/roff/args/roff.in
===================================================================
--- vendor/mandoc/dist/regress/roff/args/roff.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/roff.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,72 @@
+.\" $OpenBSD: roff.in,v 1.5 2017/07/04 14:53:26 schwarze Exp $
+.TH ARGS-ROFF 1 "February 21, 2015"
+.SH NAME
+args-roff - arguments to roff macros
+.SH DESCRIPTION
+.de test
+.BI (\\$1) "(\\$2)"
+.br
+..
+arguments containing quotes:
+.test a"b a"b
+.de test
+(\\$1) (\\$2)
+.br
+..
+standard unquoted:
+.test one two
+escaped blanks:
+.test one\ one two\ two
+escaped 'e' character:
+.test one\eone two
+escaped backslash before blank:
+.test one\\ two
+escaped backslash before 'e' character:
+.test one\\e two
+double inter-argument space:
+.test one  two
+triple inter-argument space:
+.test one   two
+single eol blank:
+.test one two 
+double eol blank:
+.test one two  
+triple eol blank:
+.test one two   
+standard quoted:
+.test "one" "two"
+quoted quotes:
+.test "one""one" """two"""
+quoted whitespace:
+.test "one one" "two two"
+escaped 'e' characters:
+.test "one \e one" "\e"
+escaped backslash before blank:
+.test "one\\ one" "\\ "
+escaped backslash before 'e' character:
+.test "one\\eone" "\\e"
+double inter-argument space:
+.test "one one"  "two two"
+triple inter-argument space:
+.test "one one"   "two two"
+missing inter-argument space:
+.test "one one"two\ two
+single eol blank:
+.test "one one" "two two" 
+double eol blank:
+.test "one one" "two two"  
+triple eol blank:
+.test "one one" "two two"   
+trailing blanks in arguments:
+.test "one " "two "
+unterminated quotes:
+.test "one
+.test one "two
+single trailing blank in unterminated quotes:
+.test "one 
+.test one "two 
+double trailing blank in unterminated quotes:
+.test "one  
+.test one "two  
+backslash at eol:
+.test one two\

Added: vendor/mandoc/dist/regress/roff/args/roff.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/args/roff.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/roff.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,43 @@
+ARGS-ROFF(1)                General Commands Manual               ARGS-ROFF(1)
+
+
+
+NNAAMMEE
+       args-roff - arguments to roff macros
+
+DDEESSCCRRIIPPTTIIOONN
+       arguments containing quotes: ((aa""bb))_(_a_"_b_)
+       standard unquoted: (one) (two)
+       escaped blanks: (one one) (two two)
+       escaped 'e' character: (one\one) (two)
+       escaped backslash before blank: (one) (two)
+       escaped backslash before 'e' character: (one\) (two)
+       double inter-argument space: (one) (two)
+       triple inter-argument space: (one) (two)
+       single eol blank: (one) (two)
+       double eol blank: (one) (two)
+       triple eol blank: (one) (two)
+       standard quoted: (one) (two)
+       quoted quotes: (one"one) ("two")
+       quoted whitespace: (one one) (two two)
+       escaped 'e' characters: (one \ one) (\)
+       escaped backslash before blank: (one one) ( )
+       escaped backslash before 'e' character: (one\one) (\)
+       double inter-argument space: (one one) (two two)
+       triple inter-argument space: (one one) (two two)
+       missing inter-argument space: (one one) (two two)
+       single eol blank: (one one) (two two)
+       double eol blank: (one one) (two two)
+       triple eol blank: (one one) (two two)
+       trailing blanks in arguments: (one ) (two )
+       unterminated quotes: (one) ()
+       (one) (two)
+       single trailing blank in unterminated quotes: (one ) ()
+       (one) (two )
+       double trailing blank in unterminated quotes: (one  ) ()
+       (one) (two  )
+       backslash at eol: (one) (two)
+
+
+
+OpenBSD                        February 21, 2015                  ARGS-ROFF(1)

Added: vendor/mandoc/dist/regress/roff/args/roff.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/args/roff.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/args/roff.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+mandoc: roff.in:31:15: STYLE: whitespace at end of input line
+mandoc: roff.in:33:16: STYLE: whitespace at end of input line
+mandoc: roff.in:35:17: STYLE: whitespace at end of input line
+mandoc: roff.in:55:27: STYLE: whitespace at end of input line
+mandoc: roff.in:57:28: STYLE: whitespace at end of input line
+mandoc: roff.in:59:29: STYLE: whitespace at end of input line
+mandoc: roff.in:63:7: STYLE: unterminated quoted argument
+mandoc: roff.in:64:11: STYLE: unterminated quoted argument
+mandoc: roff.in:66:7: STYLE: unterminated quoted argument
+mandoc: roff.in:66:12: STYLE: whitespace at end of input line
+mandoc: roff.in:67:11: STYLE: unterminated quoted argument
+mandoc: roff.in:67:16: STYLE: whitespace at end of input line
+mandoc: roff.in:69:7: STYLE: unterminated quoted argument
+mandoc: roff.in:69:13: STYLE: whitespace at end of input line
+mandoc: roff.in:70:11: STYLE: unterminated quoted argument
+mandoc: roff.in:70:17: STYLE: whitespace at end of input line

Added: vendor/mandoc/dist/regress/roff/br/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/br/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/br/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.3 2015/02/06 08:28:04 schwarze Exp $
+
+REGRESS_TARGETS	 = args
+LINT_TARGETS	 = args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/br/args.in
===================================================================
--- vendor/mandoc/dist/regress/roff/br/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/br/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: args.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.TH BR-ARGS 1 "January 17, 2011"
+.SH NAME
+br-args \- arguments to .br macros
+.SH DESCRIPTION
+some
+text
+.br arg1 arg2 arg3
+more
+text

Added: vendor/mandoc/dist/regress/roff/br/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/br/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/br/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+BR-ARGS(1)                  General Commands Manual                 BR-ARGS(1)
+
+
+
+NNAAMMEE
+       br-args - arguments to .br macros
+
+DDEESSCCRRIIPPTTIIOONN
+       some text
+       more text
+
+
+
+OpenBSD                        January 17, 2011                     BR-ARGS(1)

Added: vendor/mandoc/dist/regress/roff/br/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/br/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/br/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: args.in:8:5: ERROR: skipping all arguments: br arg1 arg2 arg3

Added: vendor/mandoc/dist/regress/roff/cc/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/cc/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cc/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2015/02/06 16:05:51 schwarze Exp $
+
+REGRESS_TARGETS	 = basic
+LINT_TARGETS	 = basic
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/cc/basic.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cc/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cc/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: basic.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.TH CC-BASIC 1 "July 7, 2012"
+.SH NAME
+cc-basic \- basic usage of the cc request
+.SH DESCRIPTION
+first line
+.br
+second
+.cc :
+line
+:br
+third
+:cc ;bogus
+line
+;br
+fourth
+;cc
+line
+.br
+last line

Added: vendor/mandoc/dist/regress/roff/cc/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cc/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cc/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+CC-BASIC(1)                 General Commands Manual                CC-BASIC(1)
+
+
+
+NNAAMMEE
+       cc-basic - basic usage of the cc request
+
+DDEESSCCRRIIPPTTIIOONN
+       first line
+       second line
+       third line
+       fourth line
+       last line
+
+
+
+OpenBSD                          July 7, 2012                      CC-BASIC(1)

Added: vendor/mandoc/dist/regress/roff/cc/basic.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/cc/basic.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cc/basic.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: basic.in:13:6: ERROR: skipping excess arguments: cc ... bogus

Added: vendor/mandoc/dist/regress/roff/cond/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.8 2015/05/31 23:12:17 schwarze Exp $
+
+REGRESS_TARGETS	= if ie close numeric register strcmp string before-Dd
+LINT_TARGETS	= if close
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/cond/before-Dd.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/before-Dd.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/before-Dd.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: before-Dd.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.if n \{.ds mystring mytext
+.\}
+.Dd $Mdocdate: July 4 2017 $
+.Dt IF-BEFORE-DD 1
+.Os
+.Sh NAME
+.Nm if-before-Dd
+.Nd end of if block on its own line before Dd
+.Sh DESCRIPTION
+In an old version of
+.Xr mandoc 1 ,
+.Xr mdoc 7
+file format autodetection failed when the end of an
+.Ic if
+block stood on its own line before the initial
+.Xr mdoc 7
+.Ic Dd
+macro.
+The file was mishandled as
+.Xr man 7
+and parsing failed with unknown macro errors.
+.Pp
+If the present document looks like a proper
+.Xr mdoc 7
+document and the following display reads
+.Dq mytext ,
+then the problem did not come back:
+.Bd -ragged -offset indent
+\*[mystring]
+.Ed

Added: vendor/mandoc/dist/regress/roff/cond/before-Dd.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/before-Dd.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/before-Dd.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+IF-BEFORE-DD(1)             General Commands Manual            IF-BEFORE-DD(1)
+
+NNAAMMEE
+     iiff--bbeeffoorree--DDdd - end of if block on its own line before Dd
+
+DDEESSCCRRIIPPTTIIOONN
+     In an old version of mandoc(1), mdoc(7) file format autodetection failed
+     when the end of an iiff block stood on its own line before the initial
+     mdoc(7) DDdd macro.  The file was mishandled as man(7) and parsing failed
+     with unknown macro errors.
+
+     If the present document looks like a proper mdoc(7) document and the
+     following display reads "mytext", then the problem did not come back:
+
+           mytext
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/cond/close.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/close.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/close.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: close.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.TH COND-CLOSE 1 2013-06-27
+.SH NAME
+cond-close \- closing conditional macros
+.SH DESCRIPTION
+.if t \{.unknown \}
+closing after an unknown macro
+.PP
+.if t \{.ig \}
+closing after an ignored macro
+.PP
+.if t \{text \}
+closing after plain text
+.PP
+.if n \{
+still open at the end of the file

Added: vendor/mandoc/dist/regress/roff/cond/close.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/close.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/close.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+COND-CLOSE(1)               General Commands Manual              COND-CLOSE(1)
+
+
+
+NNAAMMEE
+       cond-close - closing conditional macros
+
+DDEESSCCRRIIPPTTIIOONN
+       closing after an unknown macro
+
+       closing after an ignored macro
+
+       closing after plain text
+
+       still open at the end of the file
+
+
+
+OpenBSD                           2013-06-27                     COND-CLOSE(1)

Added: vendor/mandoc/dist/regress/roff/cond/close.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/close.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/close.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: close.in:15:2: ERROR: appending missing end of block: if
+mandoc: close.in:15:9: WARNING: skipping paragraph macro: sp after PP

Added: vendor/mandoc/dist/regress/roff/cond/ie.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/ie.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/ie.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,39 @@
+.\" $OpenBSD: ie.in,v 1.6 2017/07/04 22:49:59 schwarze Exp $
+.TH IE 1 "July 4, 2017"
+.SH NAME
+if \- the roff conditional instruction with else-clause
+.SH DESCRIPTION
+.el Initially, else is ignored.
+.ie n One-line true condition.
+.br
+Text following the true condition.
+.el One-line else after true.
+.el Another else after true.
+.br
+.ie n \{\
+Two-line
+true condition.
+.br\}
+.el \{\
+Two-line
+else after true.
+.br\}
+.ie t One-line false condition.
+Text following the false condition.
+.br
+.el \{Two-line else
+after false.\}
+.br
+.el Another else after false.
+.br
+.ie
+Text following an empty condition.
+.el Else after empty condition.
+.br
+.ie !
+Text following negated empty condition.
+.el Else after negated empty condition.
+.br
+.ie n If \&.el\e{ works, nothing follows here:
+.el\{dummy
+BOOHOO\}

Added: vendor/mandoc/dist/regress/roff/cond/ie.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/ie.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/ie.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+IE(1)                       General Commands Manual                      IE(1)
+
+
+
+NNAAMMEE
+       if - the roff conditional instruction with else-clause
+
+DDEESSCCRRIIPPTTIIOONN
+       One-line true condition.
+       Text following the true condition.
+       Two-line true condition.
+       Text following the false condition.
+       Two-line else after false.
+       Else after empty condition.
+       Else after negated empty condition.
+       If .el\{ works, nothing follows here:
+
+
+
+OpenBSD                          July 4, 2017                            IE(1)

Added: vendor/mandoc/dist/regress/roff/cond/if.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/if.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/if.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,98 @@
+.\" $OpenBSD: if.in,v 1.8 2017/07/04 14:53:26 schwarze Exp $
+.TH IF 1 "June 27, 2015"
+.SH NAME
+if \- the roff conditional instruction
+.SH DESCRIPTION
+.if n One-line true condition.
+.if t One-line false condition.
+.if n
+Next-line empty true condition.
+.if t
+Next-line empty false condition.
+.br
+False condition with whitespace:
+.br
+.if t 
+True condition with whitespace:
+.if n 
+.if n \{One-line true cond\}ition with block.
+.if t \{One-line false cond\}ition with block.
+.br
+.if n \{  One-line true cond\}ition with block with leading blanks.
+.if t \{  One-line false cond\}ition with block with leading blanks.
+.br
+.if n \{Two-line true condition
+without cont\}inuation and macros.
+.if t \{Two-line false condition
+without cont\}inuation and macros.
+.br
+.if n \{Two-line true condition
+.B without cont\}inuation but with macros.
+.if t \{Two-line false condition
+.B without cont\}inuation but with macros.
+.br
+.if n \{\
+Two-line true condition
+with continuation and macros.
+.\}This will not be printed.
+.if t \{\
+Two-line false condition
+with continuation and macros.
+.\}This will not be printed.
+.br
+.if n \{
+Two-line true condition with blank line.\}
+.if t \{
+Two-line false condition with blank line.\}
+.br
+.if n \{Outer true condition.
+.br
+.if n Inner one-line true condition.
+.if t Inner one-line false condition.
+.br
+.if n \{Inner two-line true condition
+without continuation and macros.\}
+.if t \{Inner two-line false condition
+without continuation and macros.\}
+.br
+Back to the outer true condition.\}
+.br
+.if t \{Outer false condition.
+.br
+.if n Inner one-line true condition.
+.if t Inner one-line false condition.
+.br
+.if n \{Inner two-line true condition
+without continuation and macros.\}
+.if t \{Inner two-line false condition
+without continuation and macros.\}
+.br
+Back to the outer false condition.\}
+.br
+.if n \{Outer true condition.
+.if t \{Inner false condition.
+inner\}middle\}end
+After conditional.
+.br
+.if n \{Outer true condition.
+.if t \{Inner false condition.
+.\}middle\}end
+After conditional.
+.br
+.if n \{Outer true condition.
+.if n \{Inner true condition.
+.\}middle\}end
+After conditional.
+.br
+.if n \{Outer true condition.
+.if t \{Inner false condition.
+.B\}middle\}end
+After conditional.
+.br
+Backslash-backslash-brace in text:
+.if t \{This text is not printed.\\}
+This neither.\}
+On a macro line:
+.if t \{.B This text\\} is not printed.
+.B This\} neither.
+End.

Added: vendor/mandoc/dist/regress/roff/cond/if.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/if.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/if.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+IF(1)                       General Commands Manual                      IF(1)
+
+
+
+NNAAMMEE
+       if - the roff conditional instruction
+
+DDEESSCCRRIIPPTTIIOONN
+       One-line true condition.
+
+       Next-line empty true condition.
+       False condition with whitespace:
+       True condition with whitespace:
+
+       One-line true condition with block.
+       One-line true condition with block with leading blanks.
+       Two-line true condition without continuation and macros.
+       Two-line true condition wwiitthhoouutt ccoonnttiinnuuaattiioonn bbuutt wwiitthh mmaaccrrooss..
+       Two-line true condition with continuation and macros.
+
+       Two-line true condition with blank line.
+       Outer true condition.
+       Inner one-line true condition.
+       Inner two-line true condition without continuation and macros.
+       Back to the outer true condition.
+       Outer true condition.  After conditional.
+       Outer true condition.  After conditional.
+       Outer true condition.  Inner true condition.  After conditional.
+       Outer true condition.  After conditional.
+       Backslash-backslash-brace in text: On a macro line: End.
+
+
+
+OpenBSD                          June 27, 2015                           IF(1)

Added: vendor/mandoc/dist/regress/roff/cond/if.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/if.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/if.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: if.in:15:2: WARNING: conditional request controls empty scope: if
+mandoc: if.in:17:2: WARNING: conditional request controls empty scope: if

Added: vendor/mandoc/dist/regress/roff/cond/numeric.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/numeric.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/numeric.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,153 @@
+.\" $OpenBSD: numeric.in,v 1.5 2017/07/04 14:53:26 schwarze Exp $
+.TH COND-NUMERIC 1 "December 16, 2014"
+.SH NAME
+cond-numeric \- roff conditions involving numbers
+.SH DESCRIPTION
+positive number:
+plain
+.ie 42 (t)
+.el (f)
+negated
+.ie !42 (t)
+.el (f)
+.PP
+negative number:
+plain
+.ie -42 (t)
+.el (f)
+negated
+.ie !-42 (t)
+.el (f)
+.PP
+second number missing:
+.ie 42=bad worse
+.el ok
+.PP
+operator "<":
+smaller
+.ie 1<2 (t)
+.el (f)
+equal
+.ie 1<1 (t)
+.el (f)
+greater
+.ie 2<1 (t)
+.el (f)
+.PP
+operator "<=":
+smaller
+.ie 1<=2 (t)
+.el (f)
+equal
+.ie 1<=1 (t)
+.el (f)
+greater
+.ie 2<=1 (t)
+.el (f)
+.PP
+operator "=":
+smaller
+.ie 1=2 (t)
+.el (f)
+equal
+.ie 1=1 (t)
+.el (f)
+greater
+.ie 2=1 (t)
+.el (f)
+.PP
+operator "==":
+smaller
+.ie 1==2 (t)
+.el (f)
+equal
+.ie 1==1 (t)
+.el (f)
+greater
+.ie 2==1 (t)
+.el (f)
+.PP
+operator ">=":
+smaller
+.ie 1>=2 (t)
+.el (f)
+equal
+.ie 1>=1 (t)
+.el (f)
+greater
+.ie 2>=1 (t)
+.el (f)
+.PP
+operator ">":
+smaller
+.ie 1>2 (t)
+.el (f)
+equal
+.ie 1>1 (t)
+.el (f)
+greater
+.ie 2>1 (t)
+.el (f)
+.PP
+with negative numbers:
+mm
+.ie -2<-1 (t)
+.el (f)
+mp
+.ie -2<1 (t)
+.el (f)
+pm
+.ie 1>-2 (t)
+.el (f)
+.PP
+operator "&":
+00
+.ie 0&0 (t)
+.el (f)
+01
+.ie 0&1 (t)
+.el (f)
+10
+.ie 1&0 (t)
+.el (f)
+11
+.ie 1&1 (t)
+.el (f)
+.PP
+operator ":":
+00
+.ie 0:0 (t)
+.el (f)
+01
+.ie 0:1 (t)
+.el (f)
+10
+.ie 1:0 (t)
+.el (f)
+11
+.ie 1:1 (t)
+.el (f)
+.PP
+with scaling units:
+1i>2c
+.ie 1i>2c (t)
+.el (f)
+1i-6P
+.ie 1i-6P (t)
+.el (f)
+.PP
+unmatched parenthesis:
+.ie (
+(t)
+.el (f)
+one
+.ie (1 (t)
+.el (f)
+.PP
+negated unmatched parenthesis:
+.ie !(
+(t)
+.el (f)
+zero
+.ie !(0 (t)
+.el (f)

Added: vendor/mandoc/dist/regress/roff/cond/numeric.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/numeric.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/numeric.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,41 @@
+COND-NUMERIC(1)             General Commands Manual            COND-NUMERIC(1)
+
+
+
+NNAAMMEE
+       cond-numeric - roff conditions involving numbers
+
+DDEESSCCRRIIPPTTIIOONN
+       positive number: plain (t) negated (f)
+
+       negative number: plain (f) negated (t)
+
+       second number missing: ok
+
+       operator "<": smaller (t) equal (f) greater (f)
+
+       operator "<=": smaller (t) equal (t) greater (f)
+
+       operator "=": smaller (f) equal (t) greater (f)
+
+       operator "==": smaller (f) equal (t) greater (f)
+
+       operator ">=": smaller (f) equal (t) greater (t)
+
+       operator ">": smaller (f) equal (f) greater (t)
+
+       with negative numbers: mm (t) mp (t) pm (t)
+
+       operator "&": 00 (f) 01 (f) 10 (f) 11 (t)
+
+       operator ":": 00 (f) 01 (t) 10 (t) 11 (t)
+
+       with scaling units: 1i>2c (t) 1i-6P (f)
+
+       unmatched parenthesis: (f) one (t)
+
+       negated unmatched parenthesis: (f) zero (t)
+
+
+
+OpenBSD                        December 16, 2014               COND-NUMERIC(1)

Added: vendor/mandoc/dist/regress/roff/cond/register.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/register.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/register.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD: register.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.TH REGISTER 1 "May 31, 2015"
+.SH NAME
+register \- conditional testing whether a register is defined
+.SH DESCRIPTION
+.ie rmyreg OOPS
+.el not yet defined
+.br
+.nr myreg 0
+.ie rmyreg now defined
+.el OOPS
+.if !rmyreg OOPS

Added: vendor/mandoc/dist/regress/roff/cond/register.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/register.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/register.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+REGISTER(1)                 General Commands Manual                REGISTER(1)
+
+
+
+NNAAMMEE
+       register - conditional testing whether a register is defined
+
+DDEESSCCRRIIPPTTIIOONN
+       not yet defined
+       now defined
+
+
+
+OpenBSD                          May 31, 2015                      REGISTER(1)

Added: vendor/mandoc/dist/regress/roff/cond/strcmp.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/strcmp.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/strcmp.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,38 @@
+.\" $OpenBSD: strcmp.in,v 1.2 2017/07/04 14:53:26 schwarze Exp $
+.TH COND-STRCMP 1 "March 8, 2014"
+.SH NAME
+cond-strcmp \- roff conditions involving string comparison
+.SH DESCRIPTION
+empty:
+.ie """ (t)
+.el (f)
+one char:
+.ie xaxax (t)
+.el (f)
+three chars:
+.ie xabcxabcx (t)
+.el (f)
+.br
+mismatch:
+.ie xabcxabdx (t)
+.el (f)
+longer:
+.ie xabcxabcdx (t)
+.el (f)
+shorter:
+.ie xabcdxabcx (t)
+.el (f)
+.br
+no middle:
+.ie xabc (t)
+.el (f)
+no end:
+.ie xabcxabc
+.el (f)
+.SS Negation
+match:
+.ie !xabcxabcx (t)
+.el (f)
+mismatch:
+.ie !xaxbx (t)
+.el (f)

Added: vendor/mandoc/dist/regress/roff/cond/strcmp.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/strcmp.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/strcmp.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+COND-STRCMP(1)              General Commands Manual             COND-STRCMP(1)
+
+
+
+NNAAMMEE
+       cond-strcmp - roff conditions involving string comparison
+
+DDEESSCCRRIIPPTTIIOONN
+       empty: (t) one char: (t) three chars: (t)
+       mismatch: (f) longer: (f) shorter: (f)
+       no middle: (f) no end: (f)
+
+   NNeeggaattiioonn
+       match: (f) mismatch: (t)
+
+
+
+OpenBSD                          March 8, 2014                  COND-STRCMP(1)

Added: vendor/mandoc/dist/regress/roff/cond/string.in
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/string.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/string.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+.\" $OpenBSD: string.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
+.TH STRING 1 "June 14, 2017"
+.SH NAME
+string \- conditional testing whether a string is defined
+.SH DESCRIPTION
+.ie d mystr OOPS
+.el mystr not yet defined
+.br
+.ds mystr mystrval
+.ie d mystr now defined
+.el OOPS
+.if !d mystr OOPS
+.PP
+.ie d mymac OOPS
+.el mymac not yet defined
+.br
+.de mymac
+mymacval
+..
+.ie dmymac now defined
+.el OOPS
+.if !d  mymac OOPS
+.PP
+.ie d myren OOPS
+.el myren not yet defined
+.br
+.rn SM myren
+.ie d myren now defined
+.el OOPS
+.if !d myren OOPS
+.PP
+standard macro is
+.ie d PP defined
+.el not defined \(em OOPS

Added: vendor/mandoc/dist/regress/roff/cond/string.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/cond/string.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/cond/string.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+STRING(1)                   General Commands Manual                  STRING(1)
+
+
+
+NNAAMMEE
+       string - conditional testing whether a string is defined
+
+DDEESSCCRRIIPPTTIIOONN
+       mystr not yet defined
+       now defined
+
+       mymac not yet defined
+       now defined
+
+       myren not yet defined
+       now defined
+
+       standard macro is defined
+
+
+
+OpenBSD                          June 14, 2017                       STRING(1)

Added: vendor/mandoc/dist/regress/roff/de/Dd.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/Dd.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/Dd.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+.\" $OpenBSD$
+.de At
+BSD
+..
+.Dd $Mdocdate: July 4 2017 $
+.Dt DE-DD 1
+.Os
+.Sh NAME
+.Nm de-Dd
+.Nd interaction of the Dd macro with de requests
+.Sh DESCRIPTION
+.At

Added: vendor/mandoc/dist/regress/roff/de/Dd.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/Dd.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/Dd.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DE-DD(1)                    General Commands Manual                   DE-DD(1)
+
+NNAAMMEE
+     ddee--DDdd - interaction of the Dd macro with de requests
+
+DDEESSCCRRIIPPTTIIOONN
+     AT&T UNIX
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/de/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/de/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,49 @@
+# $OpenBSD: Makefile,v 1.9 2015/02/03 19:37:25 schwarze Exp $
+
+REGRESS_TARGETS	 = append cond escname factorial indir infinite startde TH Dd
+LINT_TARGETS	 = escname indir infinite
+
+# groff-1.22.3 defect:
+# infinite recursion aborts output completely
+
+SKIP_GROFF	 = infinite
+
+.include <bsd.regress.mk>
+
+
+# OpenBSD only: non-standard targets
+
+# --- additions to public targets ---
+
+all ascii: ascii-diff-opt
+
+ascii-clean: ascii-clean-opt
+
+groff: TH.out_ascii_opt Dd.out_ascii_opt
+
+groff-clean: groff-clean-opt
+
+
+# --- local rules ---
+
+ascii-diff-opt: TH.mandoc_ascii_opt Dd.mandoc_ascii_opt
+	@${DIFF} ${.CURDIR}/TH.out_ascii_opt TH.mandoc_ascii_opt
+	@${DIFF} ${.CURDIR}/Dd.out_ascii_opt Dd.mandoc_ascii_opt
+
+TH.mandoc_ascii_opt: TH.in
+	@${MANDOC} -Ios=OpenBSD -Tascii -man ${.ALLSRC} > ${.TARGET}
+
+Dd.mandoc_ascii_opt: Dd.in
+	@${MANDOC} -Ios=OpenBSD -Tascii -mdoc ${.ALLSRC} > ${.TARGET}
+
+ascii-clean-opt:
+	@rm -f TH.mandoc_ascii_opt Dd.mandoc_ascii_opt
+
+TH.out_ascii_opt: TH.in
+	/usr/local/bin/nroff -c -man -Tascii ${.ALLSRC} > ${.TARGET}
+
+Dd.out_ascii_opt: Dd.in
+	/usr/local/bin/nroff -c -mdoc -Tascii ${.ALLSRC} > ${.TARGET}
+
+groff-clean-opt:
+	rm -f TH.out_ascii_opt Dd.out_ascii_opt

Added: vendor/mandoc/dist/regress/roff/de/TH.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/TH.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/TH.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: TH.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.de BI
+.IB \\$1 \\$2 \\$3
+..
+.TH DE-TH 1 "June 3, 2012"
+.SH NAME
+de-TH - interaction of the TH macro with de requests
+.SH DESCRIPTION
+.BI bold italic bold

Added: vendor/mandoc/dist/regress/roff/de/TH.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/TH.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/TH.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+DE-TH(1)                    General Commands Manual                   DE-TH(1)
+
+
+
+NNAAMMEE
+       de-TH - interaction of the TH macro with de requests
+
+DDEESSCCRRIIPPTTIIOONN
+       bboolldd_i_t_a_l_i_cbboolldd
+
+
+
+OpenBSD                          June 3, 2012                         DE-TH(1)

Added: vendor/mandoc/dist/regress/roff/de/append.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/append.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/append.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+.\" $OpenBSD: append.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DE-APPEND 1
+.Os
+.Sh NAME
+.Nm de-append
+.Nd append to macro definitions
+.Sh DESCRIPTION
+de:
+.de mym
+.Ox
+..
+.mym
+am:
+.am mym
+.Nx
+..
+.mym
+ami:
+.ds myim mym
+.ds myie mye
+.ami myim myie
+.Fx
+.mye
+.mym
+end
+.Pp
+standard macro:
+.Bo in brackets
+.Bc end
+.Pp
+append to standard macro:
+.am Bc
+.Pq appended words
+..
+.Bo in brackets
+.Bc end

Added: vendor/mandoc/dist/regress/roff/de/append.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/append.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/append.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+DE-APPEND(1)                General Commands Manual               DE-APPEND(1)
+
+NNAAMMEE
+     ddee--aappppeenndd - append to macro definitions
+
+DDEESSCCRRIIPPTTIIOONN
+     de: OpenBSD am: OpenBSD NetBSD ami: OpenBSD NetBSD FreeBSD end
+
+     standard macro: [in brackets] end
+
+     append to standard macro: [in brackets] end (appended words)
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/de/cond.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/cond.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/cond.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+.\" $OpenBSD: cond.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DE-COND 1
+.Os
+.Sh NAME
+.Nm de-cond
+.Nd conditional execution of a user-defined macro
+.Sh DESCRIPTION
+.de mym
+This is the text printed by the macro.
+..
+preceding text
+.if n .mym
+following text

Added: vendor/mandoc/dist/regress/roff/de/cond.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/cond.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/cond.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DE-COND(1)                  General Commands Manual                 DE-COND(1)
+
+NNAAMMEE
+     ddee--ccoonndd - conditional execution of a user-defined macro
+
+DDEESSCCRRIIPPTTIIOONN
+     preceding text This is the text printed by the macro.  following text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/de/escname.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/escname.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/escname.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,44 @@
+.\" $OpenBSD: escname.in,v 1.4 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DE-ESCNAME 1
+.Os
+.Sh NAME
+.Nm de-escname
+.Nd escape sequences in macro names
+.Sh DESCRIPTION
+initial text
+.Pp
+define second = val2
+.de second
+val2
+..
+.Pp
+define first\esecond = val3
+.de first\\second end3
+val3
+.end3
+.Pp
+define first = val1
+.de first\esecond
+val1
+..
+.Pp
+Values (first, second, first\esecond):
+.first
+.second
+.first\\second
+.Pp
+Remove all but second:
+.rm first\\second first\esecond second
+.first
+.second
+.first\\second
+.Pp
+macro seperated from argument by an escape sequence:
+.de witharg end4 excess arguments
+.Dq \\$1
+.end4 tail argument
+.witharg\(enargument
+.Pp
+.de\e
+final text

Added: vendor/mandoc/dist/regress/roff/de/escname.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/escname.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/escname.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+DE-ESCNAME(1)               General Commands Manual              DE-ESCNAME(1)
+
+NNAAMMEE
+     ddee--eessccnnaammee - escape sequences in macro names
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text
+
+     define second = val2
+
+     define first\second = val3
+
+     define first = val1
+
+     Values (first, second, first\second): val1 val2 val3
+
+     Remove all but second: val2
+
+     macro seperated from argument by an escape sequence: "argument"
+
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/de/escname.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/de/escname.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/escname.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+mandoc: escname.in:22:2: ERROR: escaped character not allowed in a name: first\e
+mandoc: escname.in:32:19: ERROR: escaped character not allowed in a name: first\e
+mandoc: escname.in:33:2: ERROR: skipping unknown macro: .first
+mandoc: escname.in:35:2: ERROR: skipping unknown macro: .first\\second
+mandoc: escname.in:38:5: ERROR: skipping excess arguments: .de ... excess arguments
+mandoc: escname.in:41:1: ERROR: escaped character not allowed in a name: witharg\(
+mandoc: escname.in:43:1: ERROR: escaped character not allowed in a name: de\e
+mandoc: escname.in:43:2: WARNING: skipping empty request: de

Added: vendor/mandoc/dist/regress/roff/de/factorial.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/factorial.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/factorial.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: factorial.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FACTORIAL 1
+.Os
+.Sh NAME
+.Nm factorial
+.Nd factorial sequence
+.Sh DESCRIPTION
+.\" recursively calculate a single factorial
+.de rfac
+.  ie \\$1>1 \{\
+.    No \\$1 *
+.    nr i \\$1-1
+.    rfac \\ni
+.    nr acc \\n[acc]*\\$1
+.  \}
+.  el .nr acc 1
+..
+.\" recursively print a sequence of factorials
+.de fac
+.  No \\$1! =
+.  rfac \\$1
+.  if \\$1>1 1 =
+.  No \\n[acc]
+.  if \\$1 \{\
+.    br
+.    nr i \\$1-1
+.    fac \\ni
+.  \}
+..
+.\" main program
+.fac 9

Added: vendor/mandoc/dist/regress/roff/de/factorial.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/factorial.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/factorial.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+FACTORIAL(1)                General Commands Manual               FACTORIAL(1)
+
+NNAAMMEE
+     ffaaccttoorriiaall - factorial sequence
+
+DDEESSCCRRIIPPTTIIOONN
+     9! = 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 362880
+     8! = 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 40320
+     7! = 7 * 6 * 5 * 4 * 3 * 2 * 1 = 5040
+     6! = 6 * 5 * 4 * 3 * 2 * 1 = 720
+     5! = 5 * 4 * 3 * 2 * 1 = 120
+     4! = 4 * 3 * 2 * 1 = 24
+     3! = 3 * 2 * 1 = 6
+     2! = 2 * 1 = 2
+     1! = 1
+     0! = 1
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/de/indir.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/indir.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/indir.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: indir.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DE-INDIR 1
+.Os
+.Sh NAME
+.Nm de-indir
+.Nd indirect macro definitions
+.Sh DESCRIPTION
+full dei:
+.ds myim mym
+.ds myie mye
+.dei myim myie
+text1
+.mye
+.mym
+.br
+dei with undefined second argument:
+.rm myie mym
+.dei myim myie
+text2
+..
+.mym
+.br
+dei with undefined first argument:
+.rm myim mym
+.dei myim
+text3
+.br
+dei without arguments:
+.dei
+text4

Added: vendor/mandoc/dist/regress/roff/de/indir.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/indir.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/indir.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+DE-INDIR(1)                 General Commands Manual                DE-INDIR(1)
+
+NNAAMMEE
+     ddee--iinnddiirr - indirect macro definitions
+
+DDEESSCCRRIIPPTTIIOONN
+     full dei: text1
+     dei with undefined second argument: text2
+     dei with undefined first argument: text3
+     dei without arguments: text4
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/de/indir.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/de/indir.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/indir.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: indir.in:19:11: WARNING: undefined string, using "": myie
+mandoc: indir.in:26:6: WARNING: undefined string, using "": myim
+mandoc: indir.in:26:2: WARNING: skipping empty request: dei
+mandoc: indir.in:30:2: WARNING: skipping empty request: dei

Added: vendor/mandoc/dist/regress/roff/de/infinite.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/infinite.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/infinite.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: infinite.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DE-INFINITE 1
+.Os
+.Sh NAME
+.Nm de-infinite
+.Nd inifinte recursion in a user-defined macro
+.Sh DESCRIPTION
+initial text
+.de mym
+.Op \\$1 \\$2
+..
+.mym $1 \$1
+.mym \$1 nothing
+middle text
+.de mym
+.mym
+not printed
+..
+.mym
+final text

Added: vendor/mandoc/dist/regress/roff/de/infinite.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/infinite.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/infinite.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+DE-INFINITE(1)              General Commands Manual             DE-INFINITE(1)
+
+NNAAMMEE
+     ddee--iinnffiinniittee - inifinte recursion in a user-defined macro
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text [$1 $1] middle text final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/de/infinite.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/de/infinite.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/infinite.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: infinite.in:14:5: ERROR: input stack limit exceeded, infinite loop?
+mandoc: infinite.in:20:5: ERROR: input stack limit exceeded, infinite loop?

Added: vendor/mandoc/dist/regress/roff/de/startde.in
===================================================================
--- vendor/mandoc/dist/regress/roff/de/startde.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/startde.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: startde.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DE-STARTDE 1
+.Os
+.Sh NAME
+.Nm de-startde
+.Nd macro starting a macro definition, but not ending it
+.Sh DESCRIPTION
+define outer macro:
+.de outer
+outer macro called; define inner macro:
+.de inner
+inner macro called; end outer scope.
+..
+outer scope ended; outer macro now defined.
+.Pp
+call outer macro:
+.outer
+returned from call of outer macro; end inner scope.
+..
+inner scope ended; inner macro now defined.
+.Pp
+call inner macro:
+.inner
+returned from call of inner macro.

Added: vendor/mandoc/dist/regress/roff/de/startde.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/de/startde.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/de/startde.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+DE-STARTDE(1)               General Commands Manual              DE-STARTDE(1)
+
+NNAAMMEE
+     ddee--ssttaarrttddee - macro starting a macro definition, but not ending it
+
+DDEESSCCRRIIPPTTIIOONN
+     define outer macro: outer scope ended; outer macro now defined.
+
+     call outer macro: outer macro called; define inner macro: inner scope
+     ended; inner macro now defined.
+
+     call inner macro: inner macro called; end outer scope.  returned from
+     call of outer macro; end inner scope.  returned from call of inner macro.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ds/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.5 2014/06/29 22:12:54 schwarze Exp $
+
+REGRESS_TARGETS = append escname nested quoting
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/ds/append.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/append.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/append.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: append.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DS-APPEND 1
+.Os
+.Sh NAME
+.Nm ds-append
+.Nd appending to user-defined strings
+.Sh DESCRIPTION
+.ds foo first part
+first part: \*[foo]
+.br
+.as foo " second part
+with second part: \*[foo]
+.br
+.as foo " third part
+with third part: \*[foo]
+.br
+end of test document

Added: vendor/mandoc/dist/regress/roff/ds/append.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/append.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/append.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+DS-APPEND(1)                General Commands Manual               DS-APPEND(1)
+
+NNAAMMEE
+     ddss--aappppeenndd - appending to user-defined strings
+
+DDEESSCCRRIIPPTTIIOONN
+     first part: first part
+     with second part: first part second part
+     with third part: first part second part third part
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ds/escname.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/escname.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/escname.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: escname.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DS-ESCNAME 1
+.Os
+.Sh NAME
+.Nm ds-escname
+.Nd escape sequences in string names
+.Sh DESCRIPTION
+.ds std\\esc stdval
+Now \e*[std\\esc] is
+.Sq \*[std\\esc] .
+.Pp
+.ds esc\eesc escval
+Now \e*[esc] is
+.Sq \*[esc] .

Added: vendor/mandoc/dist/regress/roff/ds/escname.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/escname.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/escname.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DS-ESCNAME(1)               General Commands Manual              DS-ESCNAME(1)
+
+NNAAMMEE
+     ddss--eessccnnaammee - escape sequences in string names
+
+DDEESSCCRRIIPPTTIIOONN
+     Now \*[std\esc] is `stdval'.
+
+     Now \*[esc] is `'.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ds/nested.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/nested.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/nested.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: nested.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DS-NESTED 1
+.Os
+.Sh NAME
+.Nm ds-nested
+.Nd nested string expansion
+.Sh DESCRIPTION
+.ds foo bar
+.ds bar output
+This is the \*[\*[foo]].
+.Pp
+.ds pi surprising
+This is \*[\*[Pi]].
+This is \*(\*(Pi.

Added: vendor/mandoc/dist/regress/roff/ds/nested.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/nested.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/nested.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+DS-NESTED(1)                General Commands Manual               DS-NESTED(1)
+
+NNAAMMEE
+     ddss--nneesstteedd - nested string expansion
+
+DDEESSCCRRIIPPTTIIOONN
+     This is the output.
+
+     This is surprising.  This is surprising.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ds/quoting.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/quoting.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/quoting.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+.\" $OpenBSD: quoting.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt DS-QUOTING 1
+.Os
+.Sh NAME
+.Nm ds-quoting
+.Nd quote handling by the define string request
+.Sh DESCRIPTION
+.ds foo initial definition
+no quoting: \*[foo]
+.br
+.ds foo redefinition
+still no quoting: \*[foo]
+.br
+.ds foo "string value
+leading quotes: \*[foo]
+.br
+.ds foo "string value"
+leading and trailing quotes: \*[foo]
+.br
+.ds foo "string" value
+leading and middle quotes: \*[foo]
+.br
+.ds foo 'string value"
+leading apostrophe, trailing quotes: \*[foo]
+.br
+.ds foo  string value"
+leading blank, trailing quotes: \*[foo]
+.br
+.ds foo
+empty string: x\*[foo]x
+.br
+end of test document

Added: vendor/mandoc/dist/regress/roff/ds/quoting.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ds/quoting.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ds/quoting.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+DS-QUOTING(1)               General Commands Manual              DS-QUOTING(1)
+
+NNAAMMEE
+     ddss--qquuoottiinngg - quote handling by the define string request
+
+DDEESSCCRRIIPPTTIIOONN
+     no quoting: initial definition
+     still no quoting: redefinition
+     leading quotes: string value
+     leading and trailing quotes: string value"
+     leading and middle quotes: string" value
+     leading apostrophe, trailing quotes: 'string value"
+     leading blank, trailing quotes: string value"
+     empty string: xx
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/B.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/B.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/B.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+.\" $OpenBSD: B.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-B 1
+.Os
+.Sh NAME
+.Nm esc-B
+.Nd the roff escape B sequence: validate numerical expression
+.Sh DESCRIPTION
+empty: \B''
+.br
+digit: \B'0'
+.br
+no number: \B'no number'
+.br
+trailing garbage: \B'1X'
+.br
+trailing operator: \B'1+'
+.br
+infix operator: \B'1+1'
+.br
+infix and trailing operator: \B'1+1+'
+.br
+chain of operations: \B'1+2+3+4'
+.br
+trailing para: \B'1+('
+.br
+unclosed para: \B'(1'
+.br
+empty pair of parentheses: \B'()'
+.br
+parentheses containing number: \B'(42)'
+.br
+complex expression: \B'3+(3*(5==5*2)*4)+(3*5)/2'
+.br
+other delimiter: \Bx1+1x
+.br
+no closing delimiter: \B'1+1

Added: vendor/mandoc/dist/regress/roff/esc/B.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/B.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/B.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+ESC-B(1)                    General Commands Manual                   ESC-B(1)
+
+NNAAMMEE
+     eesscc--BB - the roff escape B sequence: validate numerical expression
+
+DDEESSCCRRIIPPTTIIOONN
+     empty: 0
+     digit: 1
+     no number: 0
+     trailing garbage: 0
+     trailing operator: 0
+     infix operator: 1
+     infix and trailing operator: 0
+     chain of operations: 1
+     trailing para: 0
+     unclosed para: 0
+     empty pair of parentheses: 0
+     parentheses containing number: 1
+     complex expression: 1
+     other delimiter: 1
+     no closing delimiter: 0
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/B.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/B.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/B.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: B.in:37:23: WARNING: invalid escape sequence: \B'1+1

Added: vendor/mandoc/dist/regress/roff/esc/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.11 2015/04/29 18:32:57 schwarze Exp $
+
+REGRESS_TARGETS = one two multi B c c_man e f h l o p w z ignore
+LINT_TARGETS	= B h l w ignore
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/esc/c.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/c.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/c.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: c.in,v 1.4 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-C 1
+.Os
+.Sh NAME
+.Nm esc-c
+.Nd the roff escape c sequence: remove trailing space
+.Sh DESCRIPTION
+No space between
+.Dq one
+and
+.Dq word :
+one\c
+word
+.Bd -literal
+one\c
+word
+.Ed
+Blank line after \ec:
+one\c
+
+word
+.Bd -literal
+one\c
+
+word
+.Ed

Added: vendor/mandoc/dist/regress/roff/esc/c.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/c.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/c.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+ESC-C(1)                    General Commands Manual                   ESC-C(1)
+
+NNAAMMEE
+     eesscc--cc - the roff escape c sequence: remove trailing space
+
+DDEESSCCRRIIPPTTIIOONN
+     No space between "one" and "word": oneword
+
+     oneword
+     Blank line after \c: one word
+
+     one
+     word
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/c_man.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/c_man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/c_man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: c_man.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH ESC-C_MAN 1 "December 2, 2014"
+.SH NAME
+esc-c_man \- the roff escape c sequence: remove trailing space
+.SH DESCRIPTION
+No space between "one" and "word":
+one\c
+word
+.nf
+one\c
+word
+.fi
+Blank line after \ec:
+one\c
+
+word
+.nf
+one\c
+
+word
+.fi
+final text

Added: vendor/mandoc/dist/regress/roff/esc/c_man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/c_man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/c_man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+ESC-C_MAN(1)                General Commands Manual               ESC-C_MAN(1)
+
+
+
+NNAAMMEE
+       esc-c_man - the roff escape c sequence: remove trailing space
+
+DDEESSCCRRIIPPTTIIOONN
+       No space between "one" and "word": oneword
+       oneword
+       Blank line after \c: one word
+       one
+       word
+       final text
+
+
+
+OpenBSD                        December 2, 2014                   ESC-C_MAN(1)

Added: vendor/mandoc/dist/regress/roff/esc/e.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/e.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/e.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: e.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-E 1
+.Os
+.Sh NAME
+.Nm esc-e
+.Nd escaping backslashes
+.Sh DESCRIPTION
+In plain text: "\e" and "\\"
+.Pp
+On macro lines:
+.Qq \e(at
+and
+.Qq \\(at
+.Pp
+In a macro definition:
+.de mytest
+"\e$1" and "\\$2"
+..
+.mytest one two

Added: vendor/mandoc/dist/regress/roff/esc/e.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/e.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/e.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+ESC-E(1)                    General Commands Manual                   ESC-E(1)
+
+NNAAMMEE
+     eesscc--ee - escaping backslashes
+
+DDEESSCCRRIIPPTTIIOONN
+     In plain text: "\" and "\"
+
+     On macro lines: "\(at" and "@"
+
+     In a macro definition: "\$1" and "two"
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/f.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/f.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/f.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: f.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-F 1
+.Os
+.Sh NAME
+.Nm esc-f
+.Nd the roff escape f sequence: font changes
+.Sh DESCRIPTION
+numbers: \f3bold\f2italic\f1roman
+.br
+letters: \fBbold\fIitalic\fPback\f(BIbolditalic\fRroman
+.br
+multiletter: \f[B]bold\f[I]italic\f[P]back\f[BI]bolditalic\f[R]roman

Added: vendor/mandoc/dist/regress/roff/esc/f.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/f.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/f.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+ESC-F(1)                    General Commands Manual                   ESC-F(1)
+
+NNAAMMEE
+     eesscc--ff - the roff escape f sequence: font changes
+
+DDEESSCCRRIIPPTTIIOONN
+     numbers: bboolldd_i_t_a_l_i_croman
+     letters: bboolldd_i_t_a_l_i_cbbaacckk_bb_oo_ll_dd_ii_tt_aa_ll_ii_ccroman
+     multiletter: bboolldd_i_t_a_l_i_cbbaacckk_bb_oo_ll_dd_ii_tt_aa_ll_ii_ccroman
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/h.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/h.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/h.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+.\" $OpenBSD: h.in,v 1.6 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-H 1
+.Os
+.Sh NAME
+.Nm esc-h
+.Nd the roff escape h sequence: horizontal movement
+.Sh DESCRIPTION
+simple: >\h'0'<
+.br
+rounding: >\h'0.16i'<
+.br
+absolute: >\h'|12n'<
+.br
+escape only: >\h'\w'\&'M'<
+.br
+escape at the end: >\h'0+\w'\&''<
+.br
+escape at the beginning: >\h'\w'\&'M+0'<
+.br
+escape in the middle: >\h'0+\w'\&'+0'<
+.br
+invalid delimiter: >\h-<

Added: vendor/mandoc/dist/regress/roff/esc/h.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/h.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/h.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+ESC-H(1)                    General Commands Manual                   ESC-H(1)
+
+NNAAMMEE
+     eesscc--hh - the roff escape h sequence: horizontal movement
+
+DDEESSCCRRIIPPTTIIOONN
+     simple: ><
+     rounding: >  <
+     absolute: > <
+     escape only: ><
+     escape at the end: ><
+     escape at the beginning: ><
+     escape in the middle: ><
+     invalid delimiter: ><
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/h.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/h.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/h.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: h.in:23:21: WARNING: invalid escape sequence: \h-

Added: vendor/mandoc/dist/regress/roff/esc/ignore.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/ignore.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/ignore.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: ignore.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-IGNORE 1
+.Os
+.Sh NAME
+.Nm esc-ignore
+.Nd ignored roff escape sequences
+.Sh DESCRIPTION
+multiform: a\kxb\k(xyc\k[xyz]d
+.br
+quoted: a\R'myreg 0'b\R'myreg \A'y'0'c
+.br
+sizes: a\s0b\s(12c\s[123]d\s'123'e\s'1\w'xy'2'f
+.br
+signed sizes: a\s-0b\s-(12c\s-[123]d\s-'123'e\s-'1\w'xy'2'f\s-

Added: vendor/mandoc/dist/regress/roff/esc/ignore.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/ignore.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/ignore.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+ESC-IGNORE(1)               General Commands Manual              ESC-IGNORE(1)
+
+NNAAMMEE
+     eesscc--iiggnnoorree - ignored roff escape sequences
+
+DDEESSCCRRIIPPTTIIOONN
+     multiform: abcd
+     quoted: abc
+     sizes: abcdef
+     signed sizes: abcdef
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/ignore.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/ignore.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/ignore.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: ignore.in:15:60: WARNING: invalid escape sequence: \s-

Added: vendor/mandoc/dist/regress/roff/esc/l.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/l.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/l.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+.\" $OpenBSD: l.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-L 1
+.Os
+.Sh NAME
+.Nm esc-l
+.Nd the roff escape l sequence: horizontal line
+.Sh DESCRIPTION
+explicit scaling unit and fill char: >\l'2nf'<
+.br
+explicit scaling unit and default char: >\l'3n'<
+.br
+default unit and explicit fill char: >\l'4x'<
+.br
+default unit and char: >\l'5'<
+.br
+explicit scaling unit and escape sequence: >\l'6n\(+-'<
+.br
+default unit and escape char: >\l'7n\(at'<
+.br
+rounding: >\l'0.26ix'<
+.br
+invalid delimiter: >\h-<

Added: vendor/mandoc/dist/regress/roff/esc/l.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/l.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/l.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+ESC-L(1)                    General Commands Manual                   ESC-L(1)
+
+NNAAMMEE
+     eesscc--ll - the roff escape l sequence: horizontal line
+
+DDEESSCCRRIIPPTTIIOONN
+     explicit scaling unit and fill char: >ff<
+     explicit scaling unit and default char: >___<
+     default unit and explicit fill char: >xxxx<
+     default unit and char: >_____<
+     explicit scaling unit and escape sequence: >+-+-+-<
+     default unit and escape char: >@@@@@@@<
+     rounding: >xxx<
+     invalid delimiter: ><
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/l.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/l.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/l.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: l.in:23:21: WARNING: invalid escape sequence: \h-

Added: vendor/mandoc/dist/regress/roff/esc/multi.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/multi.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/multi.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: multi.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-MULTI 1
+.Os
+.Sh NAME
+.Nm esc-multi
+.Nd roff multi-character escape sequences
+.Sh DESCRIPTION
+\[tno] \[t+-] \[tmu] \[tdi] \[12] \[14] \[34]
+.br
+\C'tno' \C't+-' \C'tmu' \C'tdi' \C'12' \C'14' \C'34'

Added: vendor/mandoc/dist/regress/roff/esc/multi.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/multi.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/multi.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+ESC-MULTI(1)                General Commands Manual               ESC-MULTI(1)
+
+NNAAMMEE
+     eesscc--mmuullttii - roff multi-character escape sequences
+
+DDEESSCCRRIIPPTTIIOONN
+     ~ +- x -:- 1/2 1/4 3/4
+     ~ +- x -:- 1/2 1/4 3/4
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/o.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/o.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/o.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: o.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-O 1
+.Os
+.Sh NAME
+.Nm esc-o
+.Nd the roff escape o sequence: overstrike
+.Sh DESCRIPTION
+empty: x\o''x
+.br
+one character: x\o'|'x
+.br
+wide/narrow: x\o'O|'x
+.br
+narrow/wide: x\o'|O'x
+.br
+wide/narrow/narrow: x\o'O-|'x
+.br
+narrow/narrow/wide: x\o'|-O'x

Added: vendor/mandoc/dist/regress/roff/esc/o.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/o.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/o.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+ESC-O(1)                    General Commands Manual                   ESC-O(1)
+
+NNAAMMEE
+     eesscc--oo - the roff escape o sequence: overstrike
+
+DDEESSCCRRIIPPTTIIOONN
+     empty: xx
+     one character: x|x
+     wide/narrow: xO|x
+     narrow/wide: x|Ox
+     wide/narrow/narrow: xO-|x
+     narrow/narrow/wide: x|-Ox
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/one.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/one.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/one.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: one.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-ONE 1
+.Os
+.Sh NAME
+.Nm esc-one
+.Nd roff one-character escape sequences
+.Sh DESCRIPTION
+backslash: >\e<
+.br
+minus: >\-<
+.br
+acute: >\'<
+.br
+grave: >\`<
+.br
+normal character: >\q<

Added: vendor/mandoc/dist/regress/roff/esc/one.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/one.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/one.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+ESC-ONE(1)                  General Commands Manual                 ESC-ONE(1)
+
+NNAAMMEE
+     eesscc--oonnee - roff one-character escape sequences
+
+DDEESSCCRRIIPPTTIIOONN
+     backslash: >\<
+     minus: >-<
+     acute: >'<
+     grave: >`<
+     normal character: >q<
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/p.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/p.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/p.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: p.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-P 1
+.Os
+.Sh NAME
+.Nm esc-p
+.Nd line break escape sequence
+.Sh DESCRIPTION
+no blank: line one\pline two
+.Pp
+blank after esc: line one\p line two
+.Pp
+blank before esc: line one \pline two
+.Pp
+at eol: line one\p
+line two

Added: vendor/mandoc/dist/regress/roff/esc/p.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/p.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/p.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+ESC-P(1)                    General Commands Manual                   ESC-P(1)
+
+NNAAMMEE
+     eesscc--pp - line break escape sequence
+
+DDEESSCCRRIIPPTTIIOONN
+     no blank: line oneline
+     two
+
+     blank after esc: line one
+     line two
+
+     blank before esc: line one line
+     two
+
+     at eol: line one
+     line two
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/two.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/two.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/two.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,76 @@
+.\" $OpenBSD: two.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-TWO 1
+.Os
+.Sh NAME
+.Nm esc-two
+.Nd roff two-character escape sequences
+.Sh DESCRIPTION
+lines: \(ba \(br \(ul \(bb \(sl \(rs
+.\" groff doesn't know \(rl
+.br
+markers: \(bu \(lz \(sq \(lh \(rh \(at \(sh \(CR
+.\" the circle \(ci differs
+.\" the daggers \(dd and \(dg use backspace
+.\" \(ps and \(sc intentionally differ
+.\" groff doesn't know \(OK
+.br
+legal: \(co \(rg \(tm
+.br
+punctuation: \(em \(en \(hy
+.\" the inverted punctuation is intentionally different
+.br
+quotes: \(Bq \(bq \(oq \(cq \(aq \(dq \(Fo \(Fc \(fo \(fc
+.\" the double quotes \(lq and \(rq differ
+.br
+brackets: \(lB \(rB \(lC \(rC \(la \(ra \(bv \(lt \(lk \(rt \(rk \(rb
+.\" the left bottom \(lb differs
+.br
+arrows: \(<- \(-> \(lA \(rA \(hA
+.\" the left-right arrow \(<> differs
+.\" groff doesn't know \(va and \(vA
+.\" the vertical arrows \(da, \(ua, \(uA, \(dA use backspace
+.br
+logical: \(AN \(OR \(no \(te \(st \(tf \(3d \(or
+.\" the universal quantifier \(fa uses backspace
+.br
+mathematical: \(pl \(mi \(-+ \(+- \(pc \(mu \(di \(f/ \(**
+\(<= \(>= \(<< \(>> \(eq \(!= \(== \(ne \(=~ \(ap \(~~ \(~= \(pt
+\(es \(mo \(sb \(sp \(ca \(cu
+\(sr \(lc \(rc \(lf \(rf \(if \(Ah \(Im \(Re \(pd
+.\" groff doesn't know \(-~, \(nb, \(nc, \(-h
+.\" these differ: \(nm \(ib \(ip \(/_ \(pp \(gr
+.\" these use backspace: \(c* \(c+ \(is
+.br
+ligatures: \(ff \(fi \(fl \(Fi \(Fl \(AE \(ae \(OE \(oe \(IJ \(ij
+.\" the German eszett \(ss differs
+.br
+accents: \(a" \(a^ \(aa \(ga \(ab \(ac \(ad \(ah \(ao \(a~ \(ho \(ha \(ti
+.\" the macron \(a- differs
+.\" groff doesn't know \(a.
+.br
+accented and special letters:
+\('A \('E \('I \('O \('U \('a \('e \('i \('o \('u
+\(`A \(`E \(`I \(`O \(`U \(`a \(`e \(`i \(`o \(`u
+\(~A \(~N \(~O \(~a \(~n \(~o
+\(:A \(:E \(:I \(:O \(:U \(:a \(:e \(:i \(:o \(:u \(:y
+\(^A \(^E \(^I \(^O \(^U \(^a \(^e \(^i \(^o \(^u
+\(,C \(,c \(/L \(/l \(/O \(/o \(oA \(oa \(-D \(.i
+.\" these intentionally differ: \(Sd \(TP \(Tp
+.\" groff doesn't know \(.j
+.br
+currency: \(Do \(ct \(Eu \(eu \(Ye \(Fo
+.\" uses backspace: \(Cs
+.\" the GB pound \(Po is intentionally different
+.br
+units: \(fm \(mc
+.\" groff doesn't know \(%O
+.\" \(sd differs
+.\" \(de is intentionally different
+.br
+greek letters: \(*A \(*B \*D \(*E \(*Z \(*Y \*H \(*I \(*K \(*L
+\(*M \(*N \*C \(*O \(*P \(*R \(*T \(*U \*F \(*X \(*Q \(*W
+\(*a \(*b \(*g \(*d \(*e \(*z \(*y \(*h \(*i \(*k \(*l
+\(*m \(*n \(*c \(*o \(*p \(*r \(*s \(*t \(*u \(*f \(*x \(*q \(*w
+\(+h \(+f \+p \(+e \(ts
+.\" these differ: \(*G \(*S

Added: vendor/mandoc/dist/regress/roff/esc/two.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/two.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/two.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+ESC-TWO(1)                  General Commands Manual                 ESC-TWO(1)
+
+NNAAMMEE
+     eesscc--ttwwoo - roff two-character escape sequences
+
+DDEESSCCRRIIPPTTIIOONN
+     lines: | | _ | / \
+     markers: +o <> [] <= => @ # _|
+     legal: (C) (R) tm
+     punctuation: -- - -
+     quotes: ,, , ` ' ' " << >> < >
+     brackets: [ ] { } < > | ,- { -. } -'
+     arrows: <- -> <= => <=>
+     logical: ^ v ~ 3 -) .:. .:. |
+     mathematical: + - -+ +- . x -:- / * <= >= << >> = != == !== =~ ~ ~~ ~= oc
+     {} E (= =) (^) U \/ |~ ~| |_ _| oo N I R a
+     ligatures: ff fi fl ffi ffl AE ae OE oe IJ ij
+     accents: " ^ ' ` '` , " v o ~ , ^ ~
+     accented and special letters: 'A 'E 'I 'O 'U 'a 'e 'i 'o 'u `A `E `I `O `U `a `e `i `o `u ~A ~N
+     ~O ~a ~n ~o "A "E "I "O "U "a "e "i "o "u "y ^A ^E ^I ^O ^U ^a ^e ^i ^o ^u ,C ,c /L /l /O /o oA oa -D i
+     currency: $ /c EUR EUR =Y <<
+     units: ' ,u
+     greek letters: A B  E Z H  I K /\ M N  O TT P T Y  X IY _O a B y d e ,C n -0
+     i k >\ ,u v ,E o -n p -o ~t u |o x |u w -0 |o +p e s
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/w.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/w.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/w.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: w.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-W 1
+.Os
+.Sh NAME
+.Nm esc-w
+.Nd the roff escape w sequence: text width
+.Sh DESCRIPTION
+empty: \w''
+.br
+character: \w'n'
+.br
+blank: \w' '
+.br
+text: \w'text'
+.br
+unterminated: \w'foo

Added: vendor/mandoc/dist/regress/roff/esc/w.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/w.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/w.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+ESC-W(1)                    General Commands Manual                   ESC-W(1)
+
+NNAAMMEE
+     eesscc--ww - the roff escape w sequence: text width
+
+DDEESSCCRRIIPPTTIIOONN
+     empty: 0
+     character: 24
+     blank: 24
+     text: 96
+     unterminated: 72
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/esc/w.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/w.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/w.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: w.in:17:15: WARNING: invalid escape sequence: \w'foo

Added: vendor/mandoc/dist/regress/roff/esc/z.in
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/z.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/z.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: z.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt ESC-Z 1
+.Os
+.Sh NAME
+.Nm esc-z
+.Nd the roff escape z sequence
+.Sh DESCRIPTION
+single z with ASCII char: >\zx<
+.br
+single z with escape char: >\z\(ci<
+.br
+.ds mystr mytext
+single z with defined string (\*[mystr]): >\z\*[mystr]<
+.br
+single z with font escape: >\z\fBxbold\fP<
+.br
+single z with nospace escape: >\z\c
+new line<
+.br
+single z with overstrike: >\z\o'ab'c<
+.br
+single z near the end of the line: >\z<
+.br
+double z: >\z\zx<

Added: vendor/mandoc/dist/regress/roff/esc/z.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/esc/z.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/esc/z.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+ESC-Z(1)                    General Commands Manual                   ESC-Z(1)
+
+NNAAMMEE
+     eesscc--zz - the roff escape z sequence
+
+DDEESSCCRRIIPPTTIIOONN
+     single z with ASCII char: >x<
+     single z with escape char: >O<
+     single z with defined string (mytext): >mytext<
+     single z with font escape: >xxbboolldd<
+     single z with nospace escape: > new line<
+     single z with overstrike: >abc<
+     single z near the end of the line: ><
+     double z: >x<
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ft/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/ft/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ft/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+# $OpenBSD: Makefile,v 1.1 2014/07/05 12:33:54 schwarze Exp $
+
+REGRESS_TARGETS	= badargs badargs-mdoc
+LINT_TARGETS	= badargs badargs-mdoc
+
+SKIP_TMAN	= badargs
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: badargs-mdoc.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt FT-BADARGS-MDOC 1
+.Os
+.Sh NAME
+.Nm ft-badargs-mdoc
+.Nd font request with bad arguments
+.Sh DESCRIPTION
+default font
+.ft B
+bold
+.ft foo
+still bold
+.ft I bogus
+italic
+.ft P
+back to bold
+.ft
+back to italic

Added: vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+FT-BADARGS-MDOC(1)          General Commands Manual         FT-BADARGS-MDOC(1)
+
+NNAAMMEE
+     fftt--bbaaddaarrggss--mmddoocc - font request with bad arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     default font bboolldd ssttiillll bboolldd _i_t_a_l_i_c bbaacckk ttoo bboolldd _b_a_c_k _t_o _i_t_a_l_i_c
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ft/badargs-mdoc.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badargs-mdoc.in:14:7: ERROR: skipping excess arguments: ft ... bogus
+mandoc: badargs-mdoc.in:12:2: WARNING: unknown font, skipping request: ft foo

Added: vendor/mandoc/dist/regress/roff/ft/badargs.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ft/badargs.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ft/badargs.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: badargs.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH "FT-BADARGS" 1 "July 5, 2014"
+.SH NAME
+ft-badargs \(en font request with bad arguments
+.SH DESCRIPTION
+default font
+.ft B
+bold
+.ft foo
+still bold
+.ft I bogus
+italic
+.ft P
+back to bold
+.ft
+back to italic

Added: vendor/mandoc/dist/regress/roff/ft/badargs.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ft/badargs.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ft/badargs.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+FT-BADARGS(1)               General Commands Manual              FT-BADARGS(1)
+
+
+
+NNAAMMEE
+       ft-badargs - font request with bad arguments
+
+DDEESSCCRRIIPPTTIIOONN
+       default font bboolldd ssttiillll bboolldd _i_t_a_l_i_c bbaacckk ttoo bboolldd _b_a_c_k _t_o _i_t_a_l_i_c
+
+
+
+OpenBSD                          July 5, 2014                    FT-BADARGS(1)

Added: vendor/mandoc/dist/regress/roff/ft/badargs.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/ft/badargs.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ft/badargs.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badargs.in:11:7: ERROR: skipping excess arguments: ft ... bogus
+mandoc: badargs.in:9:2: WARNING: unknown font, skipping request: ft foo

Added: vendor/mandoc/dist/regress/roff/ig/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/ig/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ig/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2014/07/07 11:34:41 schwarze Exp $
+
+REGRESS_TARGETS	= basic
+LINT_TARGETS	= basic
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/ig/basic.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ig/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ig/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+.\" $OpenBSD: basic.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IG-BASIC 1
+.Os
+.Sh NAME
+.Nm ig-basic
+.Nd ignored blocks
+.Sh DESCRIPTION
+no arguments
+.ig
+ignored text
+..
+.br
+with end marker
+.ig end1
+ignored text
+.end1
+.br
+with two arguments
+.ig end2 excess
+ignored text
+.end2
+.br
+Here is a stray .. block ending,
+..
+and then an .ig staying open until the end of the file:
+.ig
+ignored text

Added: vendor/mandoc/dist/regress/roff/ig/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ig/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ig/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+IG-BASIC(1)                 General Commands Manual                IG-BASIC(1)
+
+NNAAMMEE
+     iigg--bbaassiicc - ignored blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     no arguments
+     with end marker
+     with two arguments
+     Here is a stray .. block ending, and then an .ig staying open until the
+     end of the file:
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ig/basic.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/ig/basic.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ig/basic.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: basic.in:20:5: ERROR: skipping excess arguments: .ig ... excess
+mandoc: basic.in:25:2: ERROR: skipping end of block that is not open: ..
+mandoc: basic.in:27:2: ERROR: appending missing end of block: ig

Added: vendor/mandoc/dist/regress/roff/it/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/it/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.2 2014/08/14 02:00:53 schwarze Exp $
+
+REGRESS_TARGETS	= badarg double text
+LINT_TARGETS	= badarg
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/it/badarg.in
===================================================================
--- vendor/mandoc/dist/regress/roff/it/badarg.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/badarg.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: badarg.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IT-BADARG 1
+.Os
+.Sh NAME
+.Nm it-badarg
+.Nd input line traps without numeric arguments
+.Sh DESCRIPTION
+.de mytrap
+traptext
+..
+line 1
+.it mytrap
+line 2
+line 3
+.it
+line 4
+line 5

Added: vendor/mandoc/dist/regress/roff/it/badarg.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/it/badarg.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/badarg.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+IT-BADARG(1)                General Commands Manual               IT-BADARG(1)
+
+NNAAMMEE
+     iitt--bbaaddaarrgg - input line traps without numeric arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     line 1 line 2 line 3 line 4 line 5
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/it/badarg.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/it/badarg.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/badarg.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badarg.in:13:2: ERROR: skipping request without numeric argument: it mytrap
+mandoc: badarg.in:16:2: ERROR: skipping request without numeric argument: it

Added: vendor/mandoc/dist/regress/roff/it/double.in
===================================================================
--- vendor/mandoc/dist/regress/roff/it/double.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/double.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: double.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH IT-DOUBLE 1 2013-07-13
+.SH NAME
+it-double \- double input line trap
+.SH DESCRIPTION
+.de firstmacro
+firstmacro
+..
+.de secondmacro
+secondmacro
+..
+initial text
+.it 1 firstmacro
+.it 2 secondmacro
+first line
+second line
+third line

Added: vendor/mandoc/dist/regress/roff/it/double.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/it/double.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/double.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+IT-DOUBLE(1)                General Commands Manual               IT-DOUBLE(1)
+
+
+
+NNAAMMEE
+       it-double - double input line trap
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text first line second line secondmacro third line
+
+
+
+OpenBSD                           2013-07-13                      IT-DOUBLE(1)

Added: vendor/mandoc/dist/regress/roff/it/text.in
===================================================================
--- vendor/mandoc/dist/regress/roff/it/text.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/text.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+.\" $OpenBSD: text.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt IT-TEXT 1
+.Os
+.Sh NAME
+.Nm it-text
+.Nd what an input line trap counts as text
+.Sh DESCRIPTION
+.de trap
+traptext
+..
+initial text
+.it 1trap
+first line after 1trap
+second line after 1trap
+.Pp
+.it 1vtrap
+first line after 1vtrap
+second line after 1vtrap
+.Pp
+.it ( + 1c + 1i)trap
+first line after ( + 1c + 1i)trap
+second line after ( + 1c + 1i)trap
+third line after ( + 1c + 1i)trap
+.it 1 trap
+.Pp
+first line after .Pp
+second line after .Pp

Added: vendor/mandoc/dist/regress/roff/it/text.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/it/text.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/it/text.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+IT-TEXT(1)                  General Commands Manual                 IT-TEXT(1)
+
+NNAAMMEE
+     iitt--tteexxtt - what an input line trap counts as text
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text first line after 1trap traptext second line after 1trap
+
+     first line after 1vtrap traptext second line after 1vtrap
+
+     first line after ( + 1c + 1i)trap second line after ( + 1c + 1i)trap
+     traptext third line after ( + 1c + 1i)trap
+
+     first line after .Pp traptext second line after .Pp
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ll/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/ll/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ll/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.1 2014/03/30 19:47:32 schwarze Exp $
+
+REGRESS_TARGETS = basic
+
+SKIP_TMAN =
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/ll/basic.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ll/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ll/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,26 @@
+.\" $OpenBSD: basic.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt LL-BASIC 1
+.Os
+.Sh NAME
+.Nm ll-basic
+.Nd changing the line length
+.Sh DESCRIPTION
+This is a longer text to demonstrate the default line length.
+In ASCII mode, it is expected to break at column 78.
+.Pp
+.ll 38n
+This is another long text to demonstrate shorter lines.
+In ASCII mode, it is expected to break at column 38.
+.Pp
+.ll
+This is a longer text after switching back to the default line length.
+In ASCII mode, it is expected to break at column 78.
+.Pp
+.ll +100n
+This is another long text to demonstrate longer lines.
+In ASCII mode, it is not expected to break at all.
+.Pp
+.ll FOO
+This is a longer text after switching to an invalid line length.
+In ASCII mode, it is expected to break at column 78.

Added: vendor/mandoc/dist/regress/roff/ll/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ll/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ll/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+LL-BASIC(1)                 General Commands Manual                LL-BASIC(1)
+
+NNAAMMEE
+     llll--bbaassiicc - changing the line length
+
+DDEESSCCRRIIPPTTIIOONN
+     This is a longer text to demonstrate the default line length.  In ASCII
+     mode, it is expected to break at column 78.
+
+     This is another long text to
+     demonstrate shorter lines.  In
+     ASCII mode, it is expected to
+     break at column 38.
+
+     This is a longer text after switching back to the default line length.
+     In ASCII mode, it is expected to break at column 78.
+
+     This is another long text to demonstrate longer lines.  In ASCII mode, it is not expected to break at all.
+
+     This is a longer text after switching to an invalid line length.  In
+     ASCII mode, it is expected to break at column 78.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/na/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/na/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/na/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.2 2011/11/17 16:28:46 schwarze Exp $
+
+REGRESS_TARGETS=args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/na/args.in
===================================================================
--- vendor/mandoc/dist/regress/roff/na/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/na/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: args.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH NA-ARGS 1 "January 17, 2011"
+.SH NAME
+na-args \- arguments to .na macros
+.SH DESCRIPTION
+some
+text
+.na arg1 arg2 arg3
+more
+text

Added: vendor/mandoc/dist/regress/roff/na/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/na/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/na/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+NA-ARGS(1)                  General Commands Manual                 NA-ARGS(1)
+
+
+
+NNAAMMEE
+       na-args - arguments to .na macros
+
+DDEESSCCRRIIPPTTIIOONN
+       some text more text
+
+
+
+OpenBSD                        January 17, 2011                     NA-ARGS(1)

Added: vendor/mandoc/dist/regress/roff/nr/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.9 2015/01/23 00:38:43 schwarze Exp $
+
+REGRESS_TARGETS = argc divzero eval escname int predef rr scale
+LINT_TARGETS	= divzero escname
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/nr/argc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/argc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/argc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: argc.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt NR-ARGC 1
+.Os
+.Sh NAME
+.Nm nr-argc
+.Nd varying number of arguments to the .nr macro
+.Sh DESCRIPTION
+.nr onearg
+one argument: \n[onearg]
+.Pp
+.nr twoargs 2
+two arguments: \n[twoargs]
+.Pp
+.nr withsuffix 2x
+with suffix: \n[withsuffix]
+.Pp
+.nr threeargs 2 3
+three arguments: \n[threeargs]
+.Pp
+.nr fourargs 2 3 4
+four arguments: \n[fourargs]

Added: vendor/mandoc/dist/regress/roff/nr/argc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/argc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/argc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+NR-ARGC(1)                  General Commands Manual                 NR-ARGC(1)
+
+NNAAMMEE
+     nnrr--aarrggcc - varying number of arguments to the .nr macro
+
+DDEESSCCRRIIPPTTIIOONN
+     one argument: 0
+
+     two arguments: 2
+
+     with suffix: 2
+
+     three arguments: 2
+
+     four arguments: 2
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/nr/divzero.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/divzero.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/divzero.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: divzero.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH NR-DIVZERO 1 "December 18, 2014"
+.SH NAME
+nr-divzero \- division by zero in numerical expression
+.SH DESCRIPTION
+initial text
+.nr divresult 1/0
+.nr modresult 1%0
+final \n[divresult] \n[modresult] text

Added: vendor/mandoc/dist/regress/roff/nr/divzero.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/divzero.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/divzero.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+NR-DIVZERO(1)               General Commands Manual              NR-DIVZERO(1)
+
+
+
+NNAAMMEE
+       nr-divzero - division by zero in numerical expression
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text final 0 0 text
+
+
+
+OpenBSD                        December 18, 2014                 NR-DIVZERO(1)

Added: vendor/mandoc/dist/regress/roff/nr/divzero.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/divzero.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/divzero.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: divzero.in:7:4: ERROR: divide by zero: 1/0
+mandoc: divzero.in:8:4: ERROR: divide by zero: 1%0

Added: vendor/mandoc/dist/regress/roff/nr/escname.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/escname.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/escname.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: escname.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH NR-ESCNAME 1 "June 29, 2014"
+.SH NAME
+nr-escname \- escape sequences in register names
+.SH DESCRIPTION
+.nr first 1
+.nr second 2
+.nr first\\second 3
+.nr first\esecond 4
+\n[first] \n[second] \n[first\\second]
+.PP
+.rr first\esecond
+\n[first] \n[second] \n[first\\second]
+.PP
+.rr first\\second
+\n[first] \n[second] \n[first\\second]
+.PP
+incomplete: \n[second

Added: vendor/mandoc/dist/regress/roff/nr/escname.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/escname.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/escname.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+NR-ESCNAME(1)               General Commands Manual              NR-ESCNAME(1)
+
+
+
+NNAAMMEE
+       nr-escname - escape sequences in register names
+
+DDEESSCCRRIIPPTTIIOONN
+       1 2 3
+
+       0 2 3
+
+       0 2 0
+
+       incomplete:
+
+
+
+OpenBSD                          June 29, 2014                   NR-ESCNAME(1)

Added: vendor/mandoc/dist/regress/roff/nr/escname.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/escname.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/escname.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4 @@
+mandoc: escname.in:9:5: ERROR: escaped character not allowed in a name: first\e
+mandoc: escname.in:12:5: ERROR: escaped character not allowed in a name: first\e
+mandoc: escname.in:18:13: WARNING: invalid escape sequence: \n[second
+mandoc: escname.in:18:12: STYLE: whitespace at end of input line

Added: vendor/mandoc/dist/regress/roff/nr/eval.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/eval.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/eval.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,68 @@
+.\" $OpenBSD: eval.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH NR-EVAL 1 "April 7, 2014"
+.SH NAME
+nr-eval \- numeric expressions in assignments to number registers
+.SH DESCRIPTION
+.nr mr 1
+1: \n(mr
+.br
+.nr mr nonumber
+nonumber: \n(mr
+.br
+.nr mr 3X
+3X: \n(mr
+.br
+.nr mr 4+
+4+: \n(mr
+.br
+.nr mr 2+3
+2+3: \n(mr
+.br
+.nr mr 1+1:
+1+1:: \n(mr
+.br
+.nr mr 10-3
+10-3: \n(mr
+.br
+.nr mr 4*2
+4*2: \n(mr
+.br
+.nr mr 27/3
+27/3: \n(mr
+.br
+.nr mr 58%16
+58%16: \n(mr
+.br
+.nr mr 11<?20
+11<?20: \n(mr
+.br
+.nr mr 30<?12
+30<?12: \n(mr
+.br
+.nr mr 7>?13
+7>?13: \n(mr
+.br
+.nr mr 14>?6
+14>?6: \n(mr
+.br
+.nr mr 2+3*3
+2+3*3: \n(mr
+.br
+.nr mr 16+(
+para at eol: \n(mr
+.br
+.nr mr (17
+unclosed para: \n(mr
+.br
+.nr mr (18)
+(18): \n(mr
+.br
+.nr mr ( 25 - 6 )
+( 25 - 6 ): \n(mr
+.br
+.nr mr 11+( 3*3 )
+11+( 3*3 ): \n(mr
+.br
+.nr mr 3+(3*(5==5*2)*4)+(3*5)/2
+3+(3*(5==5*2)*4)+(3*5)/2: \n(mr
+.br

Added: vendor/mandoc/dist/regress/roff/nr/eval.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/eval.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/eval.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,33 @@
+NR-EVAL(1)                  General Commands Manual                 NR-EVAL(1)
+
+
+
+NNAAMMEE
+       nr-eval - numeric expressions in assignments to number registers
+
+DDEESSCCRRIIPPTTIIOONN
+       1: 1
+       nonumber: 1
+       3X: 3
+       4+: 3
+       2+3: 5
+       1+1:: 5
+       10-3: 7
+       4*2: 8
+       27/3: 9
+       58%16: 10
+       11<?20: 11
+       30<?12: 12
+       7>?13: 13
+       14>?6: 14
+       2+3*3: 15
+       para at eol: 15
+       unclosed para: 17
+       (18): 18
+       ( 25 - 6 ): 19
+       11+( 3*3 ): 20
+       3+(3*(5==5*2)*4)+(3*5)/2: 21
+
+
+
+OpenBSD                          April 7, 2014                      NR-EVAL(1)

Added: vendor/mandoc/dist/regress/roff/nr/int.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/int.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/int.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: int.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH NR-INT 1 "October 3, 2013"
+.SH NAME
+nr-int \- integer number registers
+.SH DESCRIPTION
+initial contents: \nY \n(YY \n[YYY]
+.br
+.nr Y 42
+.nr YY -1
+.nr YYY 2147483647
+intermediate contents: \nY \n(YY \n[YYY]
+.br
+.nr Y -19
+.nr YY +2
+.nr YYY +1
+final contents: \nY \n(YY \n[YYY]

Added: vendor/mandoc/dist/regress/roff/nr/int.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/int.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/int.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+NR-INT(1)                   General Commands Manual                  NR-INT(1)
+
+
+
+NNAAMMEE
+       nr-int - integer number registers
+
+DDEESSCCRRIIPPTTIIOONN
+       initial contents: 0 0 0
+       intermediate contents: 42 -1 2147483647
+       final contents: 23 1 -2147483648
+
+
+
+OpenBSD                         October 3, 2013                      NR-INT(1)

Added: vendor/mandoc/dist/regress/roff/nr/predef.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/predef.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/predef.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: predef.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH NR-PREDEF 1 "August 29, 2015"
+.SH NAME
+nr-predef \- pre-defined read-only integer number registers
+.SH DESCRIPTION
+.de mym
+user defined macro with \\n(.$ arguments: \\$*
+..
+.nf
+.nr .A 111
+.nr .g 111
+.nr .H 111
+.nr .j 111
+.nr .T 111
+.nr .V 111
+.nr .$ 111
+ascii mode: \n(.A
+groff mode: \n(.g
+horizontal resolution: \n(.H
+adjustment mode: \n(.j
+output device defined: \n(.T
+vertical resolution: \n(.V
+.mym
+.mym one
+.mym one two

Added: vendor/mandoc/dist/regress/roff/nr/predef.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/predef.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/predef.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+NR-PREDEF(1)                General Commands Manual               NR-PREDEF(1)
+
+
+
+NNAAMMEE
+       nr-predef - pre-defined read-only integer number registers
+
+DDEESSCCRRIIPPTTIIOONN
+       ascii mode: 0
+       groff mode: 1
+       horizontal resolution: 24
+       adjustment mode: 0
+       output device defined: 1
+       vertical resolution: 40
+       user defined macro with 0 arguments:
+       user defined macro with 1 arguments: one
+       user defined macro with 2 arguments: one two
+
+
+
+OpenBSD                         August 29, 2015                   NR-PREDEF(1)

Added: vendor/mandoc/dist/regress/roff/nr/rr.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/rr.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/rr.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: rr.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH NR-RR 1 "April 5, 2014"
+.SH NAME
+nr-rr \- defining and undefining number registers
+.SH DESCRIPTION
+.nr key1 1
+.nr key2 2
+.nr key3 3
+.nr key4 4
+.nr key5 5
+.rr key1
+.rr key3
+.rr key5
+non-null values: \n[key2] \n[key4]
+.br
+unset values: \n[key1] \n[key3] \n[key5]

Added: vendor/mandoc/dist/regress/roff/nr/rr.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/rr.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/rr.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+NR-RR(1)                    General Commands Manual                   NR-RR(1)
+
+
+
+NNAAMMEE
+       nr-rr - defining and undefining number registers
+
+DDEESSCCRRIIPPTTIIOONN
+       non-null values: 2 4
+       unset values: 0 0 0
+
+
+
+OpenBSD                          April 5, 2014                        NR-RR(1)

Added: vendor/mandoc/dist/regress/roff/nr/scale.in
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/scale.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/scale.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: scale.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH NR-INT 1 "January 23, 2015"
+.SH NAME
+nr-scale \- scaling units in numeric expressions
+.SH DESCRIPTION
+.nr Y 1f+1
+\nY
+.nr Y 1i+1
+\nY
+.nr Y 10c+1
+\nY
+.nr Y 1v+1
+\nY
+.nr Y 1P+1
+\nY
+.nr Y 1m+1
+\nY
+.nr Y 1n+1
+\nY
+.nr Y 10p+1
+\nY
+.nr Y 1u+1
+\nY
+.nr Y 100M+1
+\nY
+.nr Y 1X+2
+\nY

Added: vendor/mandoc/dist/regress/roff/nr/scale.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/nr/scale.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/nr/scale.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+NR-INT(1)                   General Commands Manual                  NR-INT(1)
+
+
+
+NNAAMMEE
+       nr-scale - scaling units in numeric expressions
+
+DDEESSCCRRIIPPTTIIOONN
+       65537 241 945 41 41 25 25 34 2 25 1
+
+
+
+OpenBSD                        January 23, 2015                      NR-INT(1)

Added: vendor/mandoc/dist/regress/roff/po/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/po/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/po/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1 2017/05/08 15:33:43 schwarze Exp $
+
+REGRESS_TARGETS	= basic-mdoc
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/po/basic-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/po/basic-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/po/basic-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: basic-mdoc.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt PO-BASIC-MDOC 1
+.Os
+.Sh NAME
+.Nm po-basic-mdoc
+.Nd the roff page offset request
+.Sh DESCRIPTION
+initial text
+.Pp
+.po -2n
+shifted left
+.Pp
+.po +5n
+shifted right
+.Pp
+.po XXX
+shifted left
+.Pp
+.po 0
+final text

Added: vendor/mandoc/dist/regress/roff/po/basic-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/po/basic-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/po/basic-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+PO-BASIC-MDOC(1)            General Commands Manual           PO-BASIC-MDOC(1)
+
+NNAAMMEE
+     ppoo--bbaassiicc--mmddoocc - the roff page offset request
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text
+
+   shifted left
+
+        shifted right
+
+   shifted left
+
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ps/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/ps/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ps/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.2 2011/11/17 16:28:46 schwarze Exp $
+
+REGRESS_TARGETS=ignore
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/ps/ignore.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ps/ignore.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ps/ignore.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: ignore.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH PS-IGNORE 1 "Febuary 5, 2011"
+.SH NAME
+ps-ignore \- ignoreing point size macros
+.SH DESCRIPTION
+normal text
+.ps -1
+small text
+.ps +1
+big text

Added: vendor/mandoc/dist/regress/roff/ps/ignore.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ps/ignore.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ps/ignore.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+PS-IGNORE(1)                General Commands Manual               PS-IGNORE(1)
+
+
+
+NNAAMMEE
+       ps-ignore - ignoreing point size macros
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text small text big text
+
+
+
+OpenBSD                         Febuary 5, 2011                   PS-IGNORE(1)

Added: vendor/mandoc/dist/regress/roff/rm/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/rm/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/rm/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.2 2011/11/17 16:28:46 schwarze Exp $
+
+REGRESS_TARGETS=basic
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/rm/basic.in
===================================================================
--- vendor/mandoc/dist/regress/roff/rm/basic.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/rm/basic.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: basic.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RM-BASIC 1
+.Os
+.Sh NAME
+.Nm rm-basic
+.Nd the remove macro request
+.Sh DESCRIPTION
+.de mymacro
+Hello
+..
+.ds mystring world
+before rm:
+.mymacro
+\*[mystring]!
+.br
+.rm mymacro mystring
+after rm:
+.mymacro
+\*[mystring]!

Added: vendor/mandoc/dist/regress/roff/rm/basic.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/rm/basic.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/rm/basic.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+RM-BASIC(1)                 General Commands Manual                RM-BASIC(1)
+
+NNAAMMEE
+     rrmm--bbaassiicc - the remove macro request
+
+DDEESSCCRRIIPPTTIIOONN
+     before rm: Hello world!
+     after rm: !
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/rn/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/rn/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/rn/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.10 2017/03/07 20:00:02 schwarze Exp $
+
+REGRESS_TARGETS	 = append
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/rn/append.in
===================================================================
--- vendor/mandoc/dist/regress/roff/rn/append.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/rn/append.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+.\" $OpenBSD: append.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt RN-APPEND 1
+.Os
+.Sh NAME
+.Nm rn-append
+.Nd append to renamed standard macro
+.Sh DESCRIPTION
+original macro:
+.Bo in brackets
+.Bc
+.Pp
+renamed macro:
+.rn Bc myBc
+.Bo in brackets
+.myBc
+.Pp
+appending to macro:
+.am myBc
+.Pq appended words
+..
+.Bo more in brackets
+.myBc
+final text

Added: vendor/mandoc/dist/regress/roff/rn/append.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/rn/append.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/rn/append.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+RN-APPEND(1)                General Commands Manual               RN-APPEND(1)
+
+NNAAMMEE
+     rrnn--aappppeenndd - append to renamed standard macro
+
+DDEESSCCRRIIPPTTIIOONN
+     original macro: [in brackets]
+
+     renamed macro: [in brackets]
+
+     appending to macro: [more in brackets] (appended words) final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/scale/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/scale/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/scale/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1 2014/08/14 02:00:53 schwarze Exp $
+
+REGRESS_TARGETS	= horiz
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/scale/horiz.in
===================================================================
--- vendor/mandoc/dist/regress/roff/scale/horiz.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/scale/horiz.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: horiz.in,v 1.5 2017/07/04 14:53:27 schwarze Exp $
+.TH HORIZ 1 "December 23, 2014"
+.SH NAME
+horiz \- horizontal distances
+.SH DESCRIPTION
+initial text
+.in 240u
+240u
+.in 3.6c
+3.6c
+.in 0.003f
+0.003f
+.in 2i
+2i
+.in 500M
+500M
+.in 6P
+6P
+.in 36p
+36p
+.in 10n
+10n
+.in 5m
+5m
+.in 79n
+79n
+.in 1.5ix
+1.5ix
+.in -6n
+-6n
+.PP
+final text

Added: vendor/mandoc/dist/regress/roff/scale/horiz.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/scale/horiz.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/scale/horiz.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+HORIZ(1)                    General Commands Manual                   HORIZ(1)
+
+
+
+NNAAMMEE
+       horiz - horizontal distances
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+          240u
+              3.6c
+        0.003f
+                    2i
+     500M
+          6P
+     36p
+          10n
+     5m
+                                                                               79n
+               1.5ix
+         -6n
+
+       final text
+
+
+
+OpenBSD                        December 23, 2014                      HORIZ(1)

Added: vendor/mandoc/dist/regress/roff/sp/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.5 2015/02/06 09:38:22 schwarze Exp $
+
+REGRESS_TARGETS	= badargs-man badargs-mdoc negative scaling-man scaling-mdoc
+LINT_TARGETS	= badargs-man
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/sp/badargs-man.in
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/badargs-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/badargs-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+.\" $OpenBSD: badargs-man.in,v 1.5 2017/07/04 14:53:27 schwarze Exp $
+.TH SP-BADARGS-MAN 1 "December 23, 2014"
+.SH NAME
+sp-badargs-man \- bad arguments to .sp macros in man(7)
+.SH DESCRIPTION
+no arguments:
+.sp
+one argument:
+.sp 2v
+two arguments:
+.sp 3v 2i
+no scaling unit specified:
+.sp 1
+trailing garbage:
+.sp 2vx
+garbage only:
+.sp xxx
+end of test document

Added: vendor/mandoc/dist/regress/roff/sp/badargs-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/badargs-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/badargs-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,29 @@
+SP-BADARGS-MAN(1)           General Commands Manual          SP-BADARGS-MAN(1)
+
+
+
+NNAAMMEE
+       sp-badargs-man - bad arguments to .sp macros in man(7)
+
+DDEESSCCRRIIPPTTIIOONN
+       no arguments:
+
+       one argument:
+
+
+       two arguments:
+
+
+
+       no scaling unit specified:
+
+       trailing garbage:
+
+
+       garbage only:
+
+       end of test document
+
+
+
+OpenBSD                        December 23, 2014             SP-BADARGS-MAN(1)

Added: vendor/mandoc/dist/regress/roff/sp/badargs-man.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/badargs-man.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/badargs-man.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: badargs-man.in:11:8: ERROR: skipping excess arguments: sp ... 2i

Added: vendor/mandoc/dist/regress/roff/sp/badargs-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/badargs-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/badargs-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: badargs-mdoc.in,v 1.5 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SP-BADARGS-MDOC 1
+.Os
+.Sh NAME
+.Nm sp-badargs-mdoc
+.Nd bad arguments to .sp macros in mdoc(7)
+.Sh DESCRIPTION
+no arguments:
+.sp
+one argument:
+.sp 2v
+two arguments:
+.sp 3v 2i
+no scaling unit specified:
+.sp 1
+trailing garbage:
+.sp 2vx
+garbage only:
+.sp xxx
+end of test document

Added: vendor/mandoc/dist/regress/roff/sp/badargs-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/badargs-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/badargs-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+SP-BADARGS-MDOC(1)          General Commands Manual         SP-BADARGS-MDOC(1)
+
+NNAAMMEE
+     sspp--bbaaddaarrggss--mmddoocc - bad arguments to .sp macros in mdoc(7)
+
+DDEESSCCRRIIPPTTIIOONN
+     no arguments:
+
+     one argument:
+
+
+     two arguments:
+
+
+
+     no scaling unit specified:
+
+     trailing garbage:
+
+
+     garbage only:
+
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/sp/negative.in
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/negative.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/negative.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: negative.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH SP-NEGATIVE 1 "July 12, 2012"
+.SH NAME
+sp-negative \- negative vertical spacing
+.SH DESCRIPTION
+first line
+.sp -1v
+.PP
+second line

Added: vendor/mandoc/dist/regress/roff/sp/negative.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/negative.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/negative.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+SP-NEGATIVE(1)              General Commands Manual             SP-NEGATIVE(1)
+
+
+
+NNAAMMEE
+       sp-negative - negative vertical spacing
+
+DDEESSCCRRIIPPTTIIOONN
+       first line
+       second line
+
+
+
+OpenBSD                          July 12, 2012                  SP-NEGATIVE(1)

Added: vendor/mandoc/dist/regress/roff/sp/scaling-man.in
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/scaling-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/scaling-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+.\" $OpenBSD: scaling-man.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH SP-SCALING-MAN 1 "December 23, 2014"
+.SH NAME
+sp-scaling-man \- scaled arguments to .sp requests in man(7)
+.SH DESCRIPTION
+20 basic units:
+.sp 20u
+21 basic units:
+.sp 21u
+one centimeter:
+.sp 1c
+quarter of an inch:
+.sp 0.25i
+half a pica:
+.sp 0.5P
+one pica:
+.sp 1P
+6 points:
+.sp 6p
+7 points:
+.sp 7p
+one en:
+.sp 1n
+three en:
+.sp 3n
+two em:
+.sp 2m
+end of test document

Added: vendor/mandoc/dist/regress/roff/sp/scaling-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/scaling-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/scaling-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+SP-SCALING-MAN(1)           General Commands Manual          SP-SCALING-MAN(1)
+
+
+
+NNAAMMEE
+       sp-scaling-man - scaled arguments to .sp requests in man(7)
+
+DDEESSCCRRIIPPTTIIOONN
+       20 basic units:
+       21 basic units:
+
+       one centimeter:
+
+
+       quarter of an inch:
+
+       half a pica:
+       one pica:
+
+       6 points:
+       7 points:
+
+       one en:
+
+       three en:
+
+
+       two em:
+
+       end of test document
+
+
+
+OpenBSD                        December 23, 2014             SP-SCALING-MAN(1)

Added: vendor/mandoc/dist/regress/roff/sp/scaling-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/scaling-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/scaling-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+.\" $OpenBSD: scaling-mdoc.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt SP-SCALING-MDOC 1
+.Os
+.Sh NAME
+.Nm sp-scaling-mdoc
+.Nd scaled arguments to .sp requests in mdoc(7)
+.Sh DESCRIPTION
+20 basic units:
+.sp 20u
+21 basic units:
+.sp 21u
+one centimeter:
+.sp 1c
+quarter of an inch:
+.sp 0.25i
+half a pica:
+.sp 0.5P
+one pica:
+.sp 1P
+6 points:
+.sp 6p
+7 points:
+.sp 7p
+one en:
+.sp 1n
+three en:
+.sp 3n
+two em:
+.sp 2m
+end of test document

Added: vendor/mandoc/dist/regress/roff/sp/scaling-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/sp/scaling-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/sp/scaling-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+SP-SCALING-MDOC(1)          General Commands Manual         SP-SCALING-MDOC(1)
+
+NNAAMMEE
+     sspp--ssccaalliinngg--mmddoocc - scaled arguments to .sp requests in mdoc(7)
+
+DDEESSCCRRIIPPTTIIOONN
+     20 basic units:
+     21 basic units:
+
+     one centimeter:
+
+
+     quarter of an inch:
+
+     half a pica:
+     one pica:
+
+     6 points:
+     7 points:
+
+     one en:
+
+     three en:
+
+
+     two em:
+
+     end of test document
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/string/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/string/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+# $OpenBSD: Makefile,v 1.6 2014/07/06 19:08:57 schwarze Exp $
+
+REGRESS_TARGETS	 = escape infinite name std zerolength
+LINT_TARGETS	 = name std
+
+# The infinite test fails badly with groff-1.20.1:
+# It fails to print the following text.
+
+SKIP_GROFF	?= infinite
+
+# Groff can expand standard macros as strings, but mandoc cannot.
+
+SKIP_GROFF	+= std
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/string/escape.in
===================================================================
--- vendor/mandoc/dist/regress/roff/string/escape.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/escape.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: escape.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH STRING-ESCAPE 1 "December 3, 2010"
+.SH NAME
+string-escape - preventing string interpolation
+.SH DESCRIPTION
+.ds right wrong
+.ds inner *[right]
+.ds outer \\*[inner]
+.SS Normal interpolation
+result: \*[inner]
+.PP
+The above line must be "result: *[right]".
+.SS Intervening character
+result: \e*[right]
+.PP
+The above line must be "result: backslash*[right]",
+not "result: rong".
+.SS Escaped backslash
+result: \\*[right]
+.PP
+The above line must be "result: backslash*[right]",
+not "result: rong".
+.SS Delayed interpolation
+result: \*[outer]
+.PP
+The above line must be "result: *[right]",
+not "result: wrong".

Added: vendor/mandoc/dist/regress/roff/string/escape.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/string/escape.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/escape.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+STRING-ESCAPE(1)            General Commands Manual           STRING-ESCAPE(1)
+
+
+
+NNAAMMEE
+       string-escape - preventing string interpolation
+
+DDEESSCCRRIIPPTTIIOONN
+   NNoorrmmaall iinntteerrppoollaattiioonn
+       result: *[right]
+
+       The above line must be "result: *[right]".
+
+   IInntteerrvveenniinngg cchhaarraacctteerr
+       result: \*[right]
+
+       The above line must be "result: backslash*[right]", not "result: rong".
+
+   EEssccaappeedd bbaacckkssllaasshh
+       result: \*[right]
+
+       The above line must be "result: backslash*[right]", not "result: rong".
+
+   DDeellaayyeedd iinntteerrppoollaattiioonn
+       result: *[right]
+
+       The above line must be "result: *[right]", not "result: wrong".
+
+
+
+OpenBSD                        December 3, 2010               STRING-ESCAPE(1)

Added: vendor/mandoc/dist/regress/roff/string/infinite.in
===================================================================
--- vendor/mandoc/dist/regress/roff/string/infinite.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/infinite.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+.\" $OpenBSD: infinite.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH STRING-INFINITE 1 "December 3, 2010"
+.SH NAME
+string-infinite - endless recursion in string expansion
+.SH DESCRIPTION
+.ds recur \\*[recur]
+Blow up,
+(and do not \*[recur] print this)
+but still render following text correctly.

Added: vendor/mandoc/dist/regress/roff/string/infinite.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/string/infinite.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/infinite.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+STRING-INFINITE(1)          General Commands Manual         STRING-INFINITE(1)
+
+
+
+NNAAMMEE
+       string-infinite - endless recursion in string expansion
+
+DDEESSCCRRIIPPTTIIOONN
+       Blow up, but still render following text correctly.
+
+
+
+OpenBSD                        December 3, 2010             STRING-INFINITE(1)

Added: vendor/mandoc/dist/regress/roff/string/name.in
===================================================================
--- vendor/mandoc/dist/regress/roff/string/name.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/name.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,36 @@
+.\" $OpenBSD: name.in,v 1.4 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt STRING-NAME 1
+.Os
+.Sh NAME
+.Nm string-name
+.Nd torturing .ds with weird string names
+.Sh DESCRIPTION
+.ds norm value of norm
+.ds "quot" value of "quot"
+.ds bs\e value of bs\ee
+.ds bs\\e value of bs\e\ee
+.ds bl\ e value of bl\e e
+norm: \*[norm]
+.br
+norm without closing brace: \*[norm
+.br
+quot: \*[quot]
+.br
+"quot": \*["quot"]
+.br
+bs\e\ee: \*[bs\\e]
+.\".br
+.\"bs\ee: \*[bs\e]
+.br
+bse: \*[bse]
+.br
+bs: \*[bs]
+.\".br
+.\"bl\e e: \*[bl\ e]
+.br
+bl e: \*[bl e]
+.br
+ble: \*[ble]
+.br
+bl: \*[bl]

Added: vendor/mandoc/dist/regress/roff/string/name.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/string/name.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/name.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+STRING-NAME(1)              General Commands Manual             STRING-NAME(1)
+
+NNAAMMEE
+     ssttrriinngg--nnaammee - torturing .ds with weird string names
+
+DDEESSCCRRIIPPTTIIOONN
+     norm: value of norm
+     norm without closing brace:
+     quot:
+     "quot": value of "quot"
+     bs\\e: value of bs\\e
+     bse:
+     bs:
+     bl e:
+     ble:
+     bl:
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/string/name.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/string/name.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/name.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+mandoc: name.in:11:5: ERROR: escaped character not allowed in a name: bs\e
+mandoc: name.in:13:5: ERROR: escaped character not allowed in a name: bl\ 
+mandoc: name.in:16:29: WARNING: invalid escape sequence: \*[norm
+mandoc: name.in:16:29: WARNING: undefined string, using "": norm
+mandoc: name.in:16:28: STYLE: whitespace at end of input line
+mandoc: name.in:18:7: WARNING: undefined string, using "": quot
+mandoc: name.in:18:6: STYLE: whitespace at end of input line
+mandoc: name.in:26:6: WARNING: undefined string, using "": bse
+mandoc: name.in:26:5: STYLE: whitespace at end of input line
+mandoc: name.in:28:5: WARNING: undefined string, using "": bs
+mandoc: name.in:28:4: STYLE: whitespace at end of input line
+mandoc: name.in:32:7: WARNING: undefined string, using "": bl e
+mandoc: name.in:32:6: STYLE: whitespace at end of input line
+mandoc: name.in:34:6: WARNING: undefined string, using "": ble
+mandoc: name.in:34:5: STYLE: whitespace at end of input line
+mandoc: name.in:36:5: WARNING: undefined string, using "": bl
+mandoc: name.in:36:4: STYLE: whitespace at end of input line

Added: vendor/mandoc/dist/regress/roff/string/std.in
===================================================================
--- vendor/mandoc/dist/regress/roff/string/std.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/std.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+.\" $OpenBSD: std.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH STRING-STD 1 "June 18, 2017"
+.SH NAME
+string-std - expanding standard macros as strings
+.SH DESCRIPTION
+expanding the DT macro as a string:
+>>>\*[DT]<<<
+.PP
+.rn DT myname
+the same after renaming it:
+>>>\*[myname]<<<

Added: vendor/mandoc/dist/regress/roff/string/std.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/string/std.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/std.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+STRING-STD(1)               General Commands Manual              STRING-STD(1)
+
+
+
+NNAAMMEE
+       string-std - expanding standard macros as strings
+
+DDEESSCCRRIIPPTTIIOONN
+       expanding the DT macro as a string: >>><<<
+
+       the same after renaming it: >>><<<
+
+
+
+OpenBSD                          June 18, 2017                   STRING-STD(1)

Added: vendor/mandoc/dist/regress/roff/string/std.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/string/std.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/std.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: std.in:7:4: WARNING: undefined string, using "": DT
+mandoc: std.in:11:4: WARNING: undefined string, using "": myname

Added: vendor/mandoc/dist/regress/roff/string/zerolength.in
===================================================================
--- vendor/mandoc/dist/regress/roff/string/zerolength.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/zerolength.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: zerolength.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH STRING-ZEROLENGTH 1 "December 19, 2010"
+.SH NAME
+string-zerolength - handling of zero-length user-defined strings
+.SH DESCRIPTION
+.ds dszero "
+.de dezero
+..
+use zero-length string:
+x\*[dszero]x
+.dszero
+x
+.PP
+use zero-length macro:
+x\*[dezero]x
+.dezero
+x

Added: vendor/mandoc/dist/regress/roff/string/zerolength.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/string/zerolength.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/string/zerolength.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+STRING-ZEROLENGTH(1)        General Commands Manual       STRING-ZEROLENGTH(1)
+
+
+
+NNAAMMEE
+       string-zerolength - handling of zero-length user-defined strings
+
+DDEESSCCRRIIPPTTIIOONN
+       use zero-length string: xx x
+
+       use zero-length macro: xx x
+
+
+
+OpenBSD                        December 19, 2010          STRING-ZEROLENGTH(1)

Added: vendor/mandoc/dist/regress/roff/ta/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/ta/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ta/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD$
+
+REGRESS_TARGETS	= basic-mdoc basic-man
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/ta/basic-man.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ta/basic-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ta/basic-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+.\" $OpenBSD: basic-man.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TA-BASIC-MAN 1 "May 7, 2014"
+.SH NAME
+ta-basic-man \- setting tabstop positions in man(7)
+.SH DESCRIPTION
+.nf
+default:
+1	2	3
+10n:
+.ta 10n
+1	2	3
+none:
+.ta
+1	2	3
+3n +6n T 4n +2n:
+.ta 3n +6n T 4n +2n
+1	2	3	4	5	6	7	8	9
+default unit:
+.ta 3 +4 12
+1	2	3	4
+rounding:
+.ta 0.26i T 1c
+1	2	3	4	5	6	7	8	9

Added: vendor/mandoc/dist/regress/roff/ta/basic-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ta/basic-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ta/basic-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+TA-BASIC-MAN(1)             General Commands Manual            TA-BASIC-MAN(1)
+
+
+
+NNAAMMEE
+       ta-basic-man - setting tabstop positions in man(7)
+
+DDEESSCCRRIIPPTTIIOONN
+       default:
+       1    2    3
+       10n:
+       1         23
+       none:
+       123
+       3n +6n T 4n +2n:
+       1  2     3   4 5   6 7   8 9
+       default unit:
+       1  2   3    4
+       rounding:
+       1  2   3   4   5   6   7   8   9
+
+
+
+OpenBSD                           May 7, 2014                  TA-BASIC-MAN(1)

Added: vendor/mandoc/dist/regress/roff/ta/basic-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ta/basic-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ta/basic-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+.\" $OpenBSD: basic-mdoc.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TA-BASIC-MDOC 1
+.Os
+.Sh NAME
+.Nm ta-basic-mdoc
+.Nd setting tabstop positions in mdoc(7)
+.Sh DESCRIPTION
+.Bd -unfilled
+default:
+1	2	3
+10n:
+.ta 10n
+1	2	3
+none:
+.ta
+1	2	3
+3n +6n T 4n +2n:
+.ta 3n +6n T 4n +2n
+1	2	3	4	5	6	7	8	9
+.Ed
+.Pp
+literal:
+.Bd -literal -compact
+1	2	3
+.Ed
+.Pp
+after literal:
+.br
+1	2	3
+.Pp
+default unit:
+.br
+.ta 3 +4 12
+1	2	3	4

Added: vendor/mandoc/dist/regress/roff/ta/basic-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ta/basic-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ta/basic-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+TA-BASIC-MDOC(1)            General Commands Manual           TA-BASIC-MDOC(1)
+
+NNAAMMEE
+     ttaa--bbaassiicc--mmddoocc - setting tabstop positions in mdoc(7)
+
+DDEESSCCRRIIPPTTIIOONN
+     default:
+     1    2    3
+     10n:
+     1         23
+     none:
+     123
+     3n +6n T 4n +2n:
+     1  2     3   4 5   6 7   8 9
+
+     literal:
+     1       2       3
+
+     after literal:
+     1       2       3
+
+     default unit:
+     1  2   3    4
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/ti/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/ti/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ti/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1 2017/05/07 17:30:58 schwarze Exp $
+
+REGRESS_TARGETS	= basic-mdoc basic-man
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/ti/basic-man.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ti/basic-man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ti/basic-man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: basic-man.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TI-BASIC-MAN 1 "May 8, 2014"
+.SH NAME
+ti-basic-man \- temporary indentation in man(7)
+.SH DESCRIPTION
+initial text
+.ti 0.96i
+This text is indented.
+However, the indent is temporary,
+so as soon as the line wraps, it is gone.
+.ti +10n
+The temporary indent can be relative.
+All the same, it will expire in the usual way.
+.ti -0.26i
+It is also possible to temporarily reduce the indentation,
+but that will also last until the next line break only.
+.ti -10n
+Reducing by more than the current offset
+starts the next line at the physical left margin.

Added: vendor/mandoc/dist/regress/roff/ti/basic-man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ti/basic-man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ti/basic-man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+TI-BASIC-MAN(1)             General Commands Manual            TI-BASIC-MAN(1)
+
+
+
+NNAAMMEE
+       ti-basic-man - temporary indentation in man(7)
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+          This text is indented.  However, the indent is temporary, so as soon
+       as the line wraps, it is gone.
+                 The temporary indent can be relative.  All the same, it will
+       expire in the usual way.
+    It is also possible to temporarily reduce the indentation, but that will
+       also last until the next line break only.
+Reducing by more than the current offset starts the next line at the physical
+       left margin.
+
+
+
+OpenBSD                           May 8, 2014                  TI-BASIC-MAN(1)

Added: vendor/mandoc/dist/regress/roff/ti/basic-mdoc.in
===================================================================
--- vendor/mandoc/dist/regress/roff/ti/basic-mdoc.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ti/basic-mdoc.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+.\" $OpenBSD: basic-mdoc.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TI-BASIC-MDOC 1
+.Os
+.Sh NAME
+.Nm ti-basic-mdoc
+.Nd temporary indent in mdoc(7)
+.Sh DESCRIPTION
+initial text
+.ti 10n
+This text is indented.
+However, the indent is temporary,
+so as soon as the line wraps, it is gone.
+.ti +10n
+The temporary indent can be relative.
+All the same, it will expire in the usual way.
+.ti -3n
+It is also possible to temporarily reduce the indentation,
+but that will also last until the next line break only.
+.ti -10n
+Reducing by more than the current offset
+starts the next line at the physical left margin.

Added: vendor/mandoc/dist/regress/roff/ti/basic-mdoc.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/ti/basic-mdoc.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/ti/basic-mdoc.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+TI-BASIC-MDOC(1)            General Commands Manual           TI-BASIC-MDOC(1)
+
+NNAAMMEE
+     ttii--bbaassiicc--mmddoocc - temporary indent in mdoc(7)
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text
+          This text is indented.  However, the indent is temporary, so as soon
+     as the line wraps, it is gone.
+               The temporary indent can be relative.  All the same, it will
+     expire in the usual way.
+  It is also possible to temporarily reduce the indentation, but that will
+     also last until the next line break only.
+Reducing by more than the current offset starts the next line at the physical
+     left margin.
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/roff/tr/Makefile
===================================================================
--- vendor/mandoc/dist/regress/roff/tr/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/tr/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2015/02/06 16:05:51 schwarze Exp $
+
+REGRESS_TARGETS	 = args
+LINT_TARGETS	 = args
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/roff/tr/args.in
===================================================================
--- vendor/mandoc/dist/regress/roff/tr/args.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/tr/args.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: args.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TR-BASIC 1 "February 6, 2015"
+.SH NAME
+tr-args \- arguments of the tr request
+.SH DESCRIPTION
+no argument:
+.tr
+one character:
+.tr x
+>>x<<
+two characters:
+.tr xy
+>>x<<
+three characters:
+.tr xyz
+>>xz<<
+last line

Added: vendor/mandoc/dist/regress/roff/tr/args.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/roff/tr/args.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/tr/args.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+TR-BASIC(1)                 General Commands Manual                TR-BASIC(1)
+
+
+
+NNAAMMEE
+       tr-args - arguments of the tr request
+
+DDEESSCCRRIIPPTTIIOONN
+       no argument: one character: >> << two characters: >>y<< three
+       characters: >>y << last line
+
+
+
+OpenBSD                        February 6, 2015                    TR-BASIC(1)

Added: vendor/mandoc/dist/regress/roff/tr/args.out_lint
===================================================================
--- vendor/mandoc/dist/regress/roff/tr/args.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/roff/tr/args.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3 @@
+mandoc: args.in:7:2: WARNING: skipping empty request: tr
+mandoc: args.in:9:5: WARNING: odd number of characters in request: tr x
+mandoc: args.in:15:7: WARNING: odd number of characters in request: tr z

Added: vendor/mandoc/dist/regress/tbl/Makefile
===================================================================
--- vendor/mandoc/dist/regress/tbl/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.13 2015/01/29 23:34:45 schwarze Exp $
+
+SUBDIR	= opt layout mod data macro
+
+.include "../Makefile.sub"
+.include <bsd.subdir.mk>

Added: vendor/mandoc/dist/regress/tbl/Makefile.inc
===================================================================
--- vendor/mandoc/dist/regress/tbl/Makefile.inc	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/Makefile.inc	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+# $OpenBSD: Makefile.inc,v 1.2 2015/02/03 19:37:25 schwarze Exp $
+
+TBL = /usr/local/bin/tbl
+
+SKIP_TMAN ?= ALL
+SKIP_MARKDOWN ?= ALL
+
+
+# OpenBSD only: maintainer targets
+
+.for t in ${REGRESS_TARGETS}
+${t}.out_ascii: ${t}.in
+	${TBL} ${.ALLSRC} | ${NROFF} ${NOPTS} -Tascii > ${.TARGET}
+.endfor
+
+.include "../Makefile.inc"

Added: vendor/mandoc/dist/regress/tbl/data/Makefile
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+# $OpenBSD: Makefile,v 1.4 2017/07/04 20:59:17 schwarze Exp $
+
+REGRESS_TARGETS  = blankline block_unclosed block_width block_wrap empty insert
+LINT_TARGETS	 = block_unclosed empty insert
+
+# groff-1.22.3 defect:
+# - When a table ends in the middle of a block,
+#   GNU eqn produces no output whatsoever for the whole table.
+
+SKIP_GROFF	 = block_unclosed
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/tbl/data/blankline.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/blankline.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/blankline.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: blankline.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-DATA-BLANKLINE 1 "January 21, 2015"
+.SH NAME
+tbl-data-blankline \- blank line in a table
+.SH DESCRIPTION
+normal text
+.TS
+lb
+li
+lb.
+first
+
+last
+.TE
+normal text

Added: vendor/mandoc/dist/regress/tbl/data/blankline.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/blankline.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/blankline.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+TBL-DATA-BLANKLINE(1)       General Commands Manual      TBL-DATA-BLANKLINE(1)
+
+
+
+NNAAMMEE
+       tbl-data-blankline - blank line in a table
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       ffiirrsstt
+
+       llaasstt
+       normal text
+
+
+
+OpenBSD                        January 21, 2015          TBL-DATA-BLANKLINE(1)

Added: vendor/mandoc/dist/regress/tbl/data/block_unclosed.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/block_unclosed.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/block_unclosed.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+.\" $OpenBSD: block_unclosed.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-DATA-BLOCK_UNCLOSED 1 "January 28, 2015"
+.SH NAME
+tbl-data-block_unclosed \- unclosed text block
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+lll.
+begin:T{
+middle
+T}:end
+T{
+begin
+T}:middle:T{
+end
+T}
+incomplete:T{
+block
+.TE
+normal text
+.TS
+box tab(:);
+lll.
+begin:T{
+middle
+T}:end
+incomplete:T{
+block
+.T&
+rrr.
+reset:still:works
+.TE
+normal text

Added: vendor/mandoc/dist/regress/tbl/data/block_unclosed.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/block_unclosed.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/block_unclosed.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+TBL-DATA-BLOCK_UNCLOSED(1)  General Commands Manual TBL-DATA-BLOCK_UNCLOSED(1)
+
+
+
+NNAAMMEE
+       tbl-data-block_unclosed - unclosed text block
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +--------------------------+
+       |begin        middle   end |
+       |begin        middle   end |
+       |incomplete   block        |
+       +--------------------------+
+       normal text
+
+       +----------------------------+
+       |begin        middle   end   |
+       |incomplete   block          |
+       |     reset    still   works |
+       +----------------------------+
+       normal text
+
+
+
+OpenBSD                        January 28, 2015     TBL-DATA-BLOCK_UNCLOSED(1)

Added: vendor/mandoc/dist/regress/tbl/data/block_unclosed.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/block_unclosed.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/block_unclosed.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: block_unclosed.in:7:2: ERROR: data block open at end of tbl: TE
+mandoc: block_unclosed.in:30:2: ERROR: data block open at end of tbl: T&

Added: vendor/mandoc/dist/regress/tbl/data/block_width.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/block_width.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/block_width.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,107 @@
+.\" $OpenBSD: block_width.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TBL-DATA-BLOCK_WIDTH 1
+.Os
+.Sh NAME
+.Nm tbl-data-block_width
+.Nd default width of text blocks
+.Sh DESCRIPTION
+one column:
+.TS
+allbox tab(:);
+l.
+T{
+1234567890123456789012345678901234567 9
+T}
+T{
+1234567890123456789012345678901234567 90
+T}
+.TE
+.sp
+two columns:
+.TS
+allbox tab(:);
+l l.
+a:T{
+123456789012345678901234 6
+T}
+a:T{
+123456789012345678901234 67
+T}
+.TE
+.sp
+three columns:
+.TS
+allbox tab(:);
+l l l.
+a:b:T{
+12345678901234567 9
+T}
+a:b:T{
+12345678901234567 90
+T}
+.TE
+.sp
+four columns:
+.TS
+allbox tab(:);
+l l l l.
+a:b:c:T{
+12345678901234 6
+T}
+a:b:c:T{
+12345678901234 67
+T}
+.TE
+.sp
+five columns:
+.TS
+allbox tab(:);
+l l l l l.
+a:b:c:d:T{
+12345678901 3
+T}
+a:b:c:d:T{
+12345678901 34
+T}
+.TE
+.sp
+six columns:
+.TS
+allbox tab(:);
+l l l l l l.
+a:b:c:d:e:T{
+123456789 1
+T}
+a:b:c:d:e:T{
+123456789 12
+T}
+.TE
+.sp
+seven columns:
+.TS
+allbox tab(:);
+l l l l l l l.
+a:b:c:d:e:f:T{
+12345678 0
+T}
+a:b:c:d:e:f:T{
+12345678 01
+T}
+.TE
+.sp
+eight columns:
+.TS
+allbox tab(:);
+l l l l l l l l.
+a:b:c:d:e:f:g:T{
+1234567 9
+T}
+a:b:c:d:e:f:g:T{
+1234567 90
+T}
+.TE
+.sp
+leaked tab settings:
+.br
+\&	b	c	d	e	f	g	h

Added: vendor/mandoc/dist/regress/tbl/data/block_width.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/block_width.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/block_width.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,66 @@
+TBL-DATA-BLOCK_WIDTH(1)     General Commands Manual    TBL-DATA-BLOCK_WIDTH(1)
+
+NNAAMMEE
+     ttbbll--ddaattaa--bblloocckk__wwiiddtthh - default width of text blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     one column:
+     +----------------------------------------+
+     |1234567890123456789012345678901234567 9 |
+     +----------------------------------------+
+     |1234567890123456789012345678901234567   |
+     |90                                      |
+     +----------------------------------------+
+     two columns:
+     +--+----------------------------+
+     |a | 123456789012345678901234 6 |
+     +--+----------------------------+
+     |a | 123456789012345678901234   |
+     |  | 67                         |
+     +--+----------------------------+
+     three columns:
+     +--+---+---------------------+
+     |a | b | 12345678901234567 9 |
+     +--+---+---------------------+
+     |a | b | 12345678901234567   |
+     |  |   | 90                  |
+     +--+---+---------------------+
+     four columns:
+     +--+---+---+------------------+
+     |a | b | c | 12345678901234 6 |
+     +--+---+---+------------------+
+     |a | b | c | 12345678901234   |
+     |  |   |   | 67               |
+     +--+---+---+------------------+
+     five columns:
+     +--+---+---+---+---------------+
+     |a | b | c | d | 12345678901 3 |
+     +--+---+---+---+---------------+
+     |a | b | c | d | 12345678901   |
+     |  |   |   |   | 34            |
+     +--+---+---+---+---------------+
+     six columns:
+     +--+---+---+---+---+-------------+
+     |a | b | c | d | e | 123456789 1 |
+     +--+---+---+---+---+-------------+
+     |a | b | c | d | e | 123456789   |
+     |  |   |   |   |   | 12          |
+     +--+---+---+---+---+-------------+
+     seven columns:
+     +--+---+---+---+---+---+------------+
+     |a | b | c | d | e | f | 12345678 0 |
+     +--+---+---+---+---+---+------------+
+     |a | b | c | d | e | f | 12345678   |
+     |  |   |   |   |   |   | 01         |
+     +--+---+---+---+---+---+------------+
+     eight columns:
+     +--+---+---+---+---+---+---+-----------+
+     |a | b | c | d | e | f | g | 1234567 9 |
+     +--+---+---+---+---+---+---+-----------+
+     |a | b | c | d | e | f | g | 1234567   |
+     |  |   |   |   |   |   |   | 90        |
+     +--+---+---+---+---+---+---+-----------+
+     leaked tab settings:
+       b   c   d   e   f   g   h
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/tbl/data/block_wrap.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/block_wrap.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/block_wrap.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,32 @@
+.\" $OpenBSD: block_wrap.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TBL-DATA-BLOCK_WRAP 1
+.Os
+.Sh NAME
+.Nm tbl-data-block_wrap
+.Nd line wrapping in text blocks
+.Sh DESCRIPTION
+initial text
+.TS
+allbox tab(:);
+l l.
+T{
+This is a very long sentence.
+T}:short
+short:T{
+This is an even longer sentence.
+T}
+.TE
+.Pp
+.TS
+allbox tab(:);
+lw10 lw10.
+T{
+This is a very long sentence.
+T}:short
+short:T{
+This is an even longer sentence.
+T}
+.TE
+.Pp
+final text

Added: vendor/mandoc/dist/regress/tbl/data/block_wrap.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/block_wrap.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/block_wrap.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+TBL-DATA-BLOCK_WRAP(1)      General Commands Manual     TBL-DATA-BLOCK_WRAP(1)
+
+NNAAMMEE
+     ttbbll--ddaattaa--bblloocckk__wwrraapp - line wrapping in text blocks
+
+DDEESSCCRRIIPPTTIIOONN
+     initial text
+     +--------------------+------------------------+
+     |This is a very long | short                  |
+     |sentence.           |                        |
+     +--------------------+------------------------+
+     |short               | This is an even longer |
+     |                    | sentence.              |
+     +--------------------+------------------------+
+     +-----------+------------+
+     |This is a  | short      |
+     |very long  |            |
+     |sentence.  |            |
+     +-----------+------------+
+     |short      | This is an |
+     |           | even       |
+     |           | longer     |
+     |           | sentence.  |
+     +-----------+------------+
+     final text
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/tbl/data/empty.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-DATA-EMPTY 1 "January 28, 2015"
+.SH NAME
+tbl-data-empty \- empty table
+.SH DESCRIPTION
+normal text
+.TS
+box; l.
+.TE
+normal text

Added: vendor/mandoc/dist/regress/tbl/data/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+TBL-DATA-EMPTY(1)           General Commands Manual          TBL-DATA-EMPTY(1)
+
+
+
+NNAAMMEE
+       tbl-data-empty - empty table
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       normal text
+
+
+
+OpenBSD                        January 28, 2015              TBL-DATA-EMPTY(1)

Added: vendor/mandoc/dist/regress/tbl/data/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: empty.in:7:2: ERROR: tbl without any data cells

Added: vendor/mandoc/dist/regress/tbl/data/insert.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/insert.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/insert.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+.\" $OpenBSD: insert.in,v 1.1 2017/07/04 20:59:17 schwarze Exp $
+.TH TBL-DATA-INSERT 1 "July 4, 2017"
+.SH NAME
+tbl-data-insert \- insertion of empty spans for line-only layout rows
+.SH DESCRIPTION
+initial text
+.TS
+tab(:);
+_ _
+l l
+- -
+l r
+_ ^
+r.
+colum one:column two
+left:right
+not:printed
+right:left
+.TE
+.sp
+final text

Added: vendor/mandoc/dist/regress/tbl/data/insert.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/insert.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/insert.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+TBL-DATA-INSERT(1)          General Commands Manual         TBL-DATA-INSERT(1)
+
+
+
+NNAAMMEE
+       tbl-data-insert - insertion of empty spans for line-only layout rows
+
+DDEESSCCRRIIPPTTIIOONN
+       initial text
+
+       -----------------------
+       colum one   column two
+       -----------------------
+       left             right
+       -----------
+           right   left
+
+       final text
+
+
+
+OpenBSD                          July 4, 2017               TBL-DATA-INSERT(1)

Added: vendor/mandoc/dist/regress/tbl/data/insert.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/data/insert.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/data/insert.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: insert.in:17:1: ERROR: ignoring data in spanned tbl cell: not
+mandoc: insert.in:17:5: ERROR: ignoring data in spanned tbl cell: printed

Added: vendor/mandoc/dist/regress/tbl/layout/Makefile
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+# $OpenBSD: Makefile,v 1.2 2015/01/30 00:27:09 schwarze Exp $
+
+REGRESS_TARGETS	 = center complex empty emptyline
+REGRESS_TARGETS	+= lines lines-nogroff numbers span
+LINT_TARGETS	 = complex empty
+
+# groff-1.22.3 defects:
+# - When the layout is completely empty,
+#   GNU eqn produces no output whatsoever for the whole table.
+# - When there is no horizontal line at the top,
+#   vertical lines extend beyond the top of the table.
+
+SKIP_GROFF	 = empty lines-nogroff
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/tbl/layout/center.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/center.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/center.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+.\" $OpenBSD: center.in,v 1.4 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-LAYOUT-CENTER 1 "June 17, 2017"
+.SH NAME
+tbl-layout-center \- centering of table cells
+.SH DESCRIPTION
+normal text
+.TS
+tab(:);
+r c l
+r c l
+r c l
+c s l
+r c s
+r c l .
+*:*:*
+**:**:**
+***:***:***
+***:***
+***:***
+***:***:***
+****:****:****
+*****:*****:*****
+.TE
+.sp
+leaked tab settings:
+.br
+a	b	c	de

Added: vendor/mandoc/dist/regress/tbl/layout/center.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/center.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/center.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+TBL-LAYOUT-CENTER(1)        General Commands Manual       TBL-LAYOUT-CENTER(1)
+
+
+
+NNAAMMEE
+       tbl-layout-center - centering of table cells
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+           *     *     *
+          **    **     **
+         ***    ***    ***
+            ***        ***
+         ***        ***
+         ***    ***    ***
+        ****   ****    ****
+       *****   *****   *****
+
+       leaked tab settings:
+       a    b       c       de
+
+
+
+OpenBSD                          June 17, 2017            TBL-LAYOUT-CENTER(1)

Added: vendor/mandoc/dist/regress/tbl/layout/complex.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/complex.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/complex.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,38 @@
+.\" $OpenBSD: complex.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-LAYOUT-COMPLEX 1 "January 26, 2015"
+.SH NAME
+tbl-layout-complex \- complex table layout
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+l|p-1l bsil|||l,l|l	ilb^|i||l.
+a:b:c:d
+e:f:g:h:i
+.TE
+.PP
+normal text
+.TS
+box tab(:);
+l ^
+l l.
+a:b
+c:d
+.TE
+.PP
+normal text
+.TS
+tab(:);
+||l||l||
+|l|l|
+ll.
+_
+a:b
+_
+c:d
+_
+e:f
+_
+.TE
+.PP
+normal text

Added: vendor/mandoc/dist/regress/tbl/layout/complex.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/complex.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/complex.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,35 @@
+TBL-LAYOUT-COMPLEX(1)       General Commands Manual      TBL-LAYOUT-COMPLEX(1)
+
+
+
+NNAAMMEE
+       tbl-layout-complex - complex table layout
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +--+-----------++--+
+       |a | bb       c ||d |
+       |e | _f   gg     ||i |
+       +--+-----------++--+
+       normal text
+
+       +------+
+       |a     |
+       |c   d |
+       +------+
+       normal text
+
+       +--++--+
+       |a ||b |
+       +--++--+
+       |c | d |
+       +--+---+
+        e   f
+       --------
+
+       normal text
+
+
+
+OpenBSD                        January 26, 2015          TBL-LAYOUT-COMPLEX(1)

Added: vendor/mandoc/dist/regress/tbl/layout/complex.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/complex.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/complex.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: complex.in:9:14: WARNING: skipping vertical bar in tbl layout
+mandoc: complex.in:9:28: WARNING: skipping vertical bar in tbl layout
+mandoc: complex.in:11:7: ERROR: ignoring data in spanned tbl cell: h
+mandoc: complex.in:17:3: WARNING: tbl column starts with span
+mandoc: complex.in:19:3: ERROR: ignoring data in spanned tbl cell: b

Added: vendor/mandoc/dist/regress/tbl/layout/empty.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/empty.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/empty.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: empty.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-LAYOUT-EMPTY 1 "January 29, 2015"
+.SH NAME
+tbl-layout-empty \- empty table layout
+.SH DESCRIPTION
+completely empty layout:
+.TS
+.
+table text
+.TE
+layout only contains a bar:
+.TS
+|.
+table text
+.TE
+normal text

Added: vendor/mandoc/dist/regress/tbl/layout/empty.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/empty.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/empty.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+TBL-LAYOUT-EMPTY(1)         General Commands Manual        TBL-LAYOUT-EMPTY(1)
+
+
+
+NNAAMMEE
+       tbl-layout-empty - empty table layout
+
+DDEESSCCRRIIPPTTIIOONN
+       completely empty layout:
+
+       table text
+       layout only contains a bar:
+
+       |table text
+       normal text
+
+
+
+OpenBSD                        January 29, 2015            TBL-LAYOUT-EMPTY(1)

Added: vendor/mandoc/dist/regress/tbl/layout/empty.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/empty.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/empty.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: empty.in:8:2: ERROR: empty tbl layout
+mandoc: empty.in:13:3: ERROR: empty tbl layout

Added: vendor/mandoc/dist/regress/tbl/layout/emptyline.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/emptyline.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/emptyline.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,25 @@
+.\" $OpenBSD: emptyline.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-LAYOUT-EMPTYLINE 1 "January 29, 2015"
+.SH NAME
+tbl-layout-emptyline \- empty lines in table layouts
+.SH DESCRIPTION
+An empty line in the middle of a table joins with the next:
+.TS
+l
+|
+r.
+table text
+_
+bar
+right
+.TE
+.PP
+An empty line at the end of a table is discarded:
+.TS
+l
+r
+|.
+table text
+right
+.TE
+normal text

Added: vendor/mandoc/dist/regress/tbl/layout/emptyline.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/emptyline.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/emptyline.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+TBL-LAYOUT-EMPTYLINE(1)     General Commands Manual    TBL-LAYOUT-EMPTYLINE(1)
+
+
+
+NNAAMMEE
+       tbl-layout-emptyline - empty lines in table layouts
+
+DDEESSCCRRIIPPTTIIOONN
+       An empty line in the middle of a table joins with the next:
+
+        table text
+       +-----------
+       |       bar
+       |     right
+
+       An empty line at the end of a table is discarded:
+
+       table text
+            right
+       normal text
+
+
+
+OpenBSD                        January 29, 2015        TBL-LAYOUT-EMPTYLINE(1)

Added: vendor/mandoc/dist/regress/tbl/layout/lines-nogroff.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/lines-nogroff.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/lines-nogroff.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,208 @@
+.\" $OpenBSD: lines-nogroff.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TBL-LAYOUT-LINES-NOGROFF 1
+.Os
+.Sh NAME
+.Nm tbl-layout-lines
+.Nd table cells containing lines, misformatting with groff
+.Sh DESCRIPTION
+vline top left:
+.sp
+.TS
+tab(:);
+| l l
+  l l.
+11:12
+21:22
+.TE
+.sp
+hline and vline top left:
+.sp
+.TS
+tab(:);
+_| l
+l  l.
+:12
+21:22
+.TE
+.sp
+vline and hline top left:
+.sp
+.TS
+tab(:);
+| _ l
+  l l.
+:12
+21:22
+.TE
+.sp
+vline top:
+.sp
+.TS
+tab(:);
+l| l
+l  l.
+11:12
+21:22
+.TE
+.sp
+vline and hline top:
+.sp
+.TS
+tab(:);
+l| _ l
+l  l l.
+11::13
+21:22:23
+.TE
+.sp
+hline and vline top:
+.sp
+.TS
+tab(:);
+l _| l
+l l  l.
+11::13
+21:22:23
+.TE
+.sp
+hline, vline, hline top:
+.sp
+.TS
+tab(:);
+l _| _ l
+l l  l l.
+11:::13
+21:22:23:24
+.TE
+.sp
+vline top right:
+.sp
+.TS
+tab(:);
+l l|
+l l.
+11:12
+21:22
+.TE
+.sp
+vline and hline top right:
+.sp
+.TS
+tab(:);
+l| _
+l  l.
+11:
+21:22
+.TE
+.sp
+hline and vline top right:
+.sp
+.TS
+tab(:);
+l _|
+l l.
+11:
+21:22
+.TE
+.sp
+double vline top left:
+.sp
+.TS
+tab(:);
+|| l l
+   l l.
+11:12
+21:22
+.TE
+.sp
+hline and double vline top left:
+.sp
+.TS
+tab(:);
+_|| l
+l   l.
+:12
+21:22
+.TE
+.sp
+double vline and hline top left:
+.sp
+.TS
+tab(:);
+|| _ l
+   l l.
+:12
+21:22
+.TE
+.sp
+double vline top:
+.sp
+.TS
+tab(:);
+l|| l
+l   l.
+11:12
+21:22
+.TE
+.sp
+double vline and hline top:
+.sp
+.TS
+tab(:);
+l|| _ l
+l   l l.
+11::13
+21:22:23
+.TE
+.sp
+hline and double vline top:
+.sp
+.TS
+tab(:);
+l _|| l
+l l   l.
+11::13
+21:22:23
+.TE
+.sp
+hline, double vline, hline top:
+.sp
+.TS
+tab(:);
+l _|| _ l
+l l   l l.
+11:::13
+21:22:23:24
+.TE
+.sp
+double vline top right:
+.sp
+.TS
+tab(:);
+l l||
+l l.
+11:12
+21:22
+.TE
+.sp
+double vline and hline top right:
+.sp
+.TS
+tab(:);
+l|| _
+l   l.
+11:
+21:22
+.TE
+.sp
+hline and double vline top right:
+.sp
+.TS
+tab(:);
+l _||
+l l.
+11:
+21:22
+.TE
+.sp

Added: vendor/mandoc/dist/regress/tbl/layout/lines-nogroff.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/lines-nogroff.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/lines-nogroff.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,108 @@
+TBL-LAYOUT-LINES-NOGROFF(1)                            General Commands Manual
+
+NNAAMMEE
+     ttbbll--llaayyoouutt--lliinneess - table cells containing lines, misformatting with groff
+
+DDEESSCCRRIIPPTTIIOONN
+     vline top left:
+
+     |11   12
+      21   22
+
+     hline and vline top left:
+
+     ---+ 12
+     21   22
+
+     vline and hline top left:
+
+     +---- 12
+      21   22
+
+     vline top:
+
+     11 | 12
+     21   22
+
+     vline and hline top:
+
+     11 +----- 13
+     21   22   23
+
+     hline and vline top:
+
+     11 -----+ 13
+     21   22   23
+
+     hline, vline, hline top:
+
+     11 -----+----- 13
+     21   22   23   24
+
+     vline top right:
+
+     11   12 |
+     21   22
+
+     vline and hline top right:
+
+     11 +----
+     21   22
+
+     hline and vline top right:
+
+     11 -----+
+     21   22
+
+     double vline top left:
+
+     |11   12
+      21   22
+
+     hline and double vline top left:
+
+     ---+|12
+     21   22
+
+     double vline and hline top left:
+
+     +---- 12
+      21   22
+
+     double vline top:
+
+     11 ||12
+     21   22
+
+     double vline and hline top:
+
+     11 ++---- 13
+     21   22   23
+
+     hline and double vline top:
+
+     11 -----+|13
+     21   22   23
+
+     hline, double vline, hline top:
+
+     11 -----++---- 13
+     21   22   23   24
+
+     double vline top right:
+
+     11   12 |
+     21   22
+
+     double vline and hline top right:
+
+     11 ++---
+     21   22
+
+     hline and double vline top right:
+
+     11 -----+
+     21   22
+
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/tbl/layout/lines.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/lines.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/lines.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6977 @@
+.\" $OpenBSD: lines.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TBL-LAYOUT-LINES 1
+.Os
+.Sh NAME
+.Nm tbl-layout-lines
+.Nd table cells containing lines
+.Sh DESCRIPTION
+.pl 8000
+hline top left:
+.TS
+tab(:);
+_ l
+l l.
+:12
+21:22
+.TE
+.sp
+hline top:
+.TS
+tab(:);
+l _ l
+l l l.
+11::13
+21:22:23
+.TE
+.sp
+double hline top:
+.TS
+tab(:);
+l _ _ l
+l l l l.
+11:::13
+21:22:23:24
+.TE
+.sp
+hline top right:
+.TS
+tab(:);
+l _
+l l.
+11:
+21:22
+.TE
+.sp
+hline in front:
+.TS
+tab(:);
+l l
+_ l
+l l.
+11:12
+:22
+31:32
+.TE
+.sp
+vline in front:
+.TS
+tab(:);
+  l l
+  l l
+| l l
+  l l.
+11:12
+21:22
+31:32
+41:42
+.TE
+.sp
+hline and vline in front:
+.TS
+tab(:);
+l  l
+l  l
+_| l
+l  l.
+11:12
+21:22
+:32
+41:42
+.TE
+.sp
+vline and hline in front:
+.TS
+tab(:);
+  l l
+  l l
+| _ l
+  l l.
+11:12
+21:22
+:32
+41:42
+.TE
+.sp
+hline in the middle:
+.TS
+tab(:);
+l l l
+l _ l
+l l l.
+11:12:13
+21::23
+31:32:33
+.TE
+.sp
+vline in the middle:
+.TS
+tab(:);
+l  l l
+l  l l
+l| l l
+l  l l.
+11:12:13
+21:22:23
+31:32:33
+41:42:43
+.TE
+.sp
+vline and hline in the middle:
+.TS
+tab(:);
+l  l l
+l  l l
+l| _ l
+l  l l.
+11:12:13
+21:22:23
+31::33
+41:42:43
+.TE
+.sp
+hline and vline in the middle:
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+l l  l
+l _  l
+l l| l
+l l  l.
+11:12:13
+21::23
+31:32:33
+41:42:43
+.TE
+.sp 2v
+vline right above hline in the middle:
+.TS
+doublebox allbox tab(:);
+l l  l
+l l  l
+l l| l
+l _  l
+l l  l.
+11:12:13
+21:22:23
+31:32:33
+41::43
+51:52:53
+.TE
+.sp 2v
+vline below hline in the middle:
+.TS
+doublebox allbox tab(:);
+l l  l l
+l _  _ l
+l l| l l
+l l  l l.
+11:12:13:14
+21:::24
+31:32:33:34
+41:42:43:44
+.TE
+.sp 2v
+vline above hline in the middle:
+.TS
+doublebox allbox tab(:);
+l l  l l
+l l  l l
+l l| l l
+l _  _ l
+l l  l l.
+11:12:13:14
+21:22:23:24
+31:32:33:34
+41:::44
+51:52:53:54
+.TE
+.sp 2v
+vline left below hline at the end:
+.TS
+doublebox allbox tab(:);
+l  l
+l  _
+l| l
+l  l.
+11:12
+21:
+31:32
+41:42
+.TE
+.sp 2v
+vline left above hline at the end:
+.TS
+doublebox allbox tab(:);
+l  l
+l  l
+l| l
+l  _
+l  l.
+11:12
+21:22
+31:32
+41:
+51:52
+.TE
+.sp 2v
+vline right below hline at the end:
+.TS
+doublebox allbox tab(:);
+l l
+l _
+l l|
+l l.
+11:12
+21:
+31:32
+41:42
+.TE
+.sp 2v
+vline right above hline at the end:
+.TS
+doublebox allbox tab(:);
+l l
+l l
+l l|
+l _
+l l.
+11:12
+21:22
+31:32
+41:
+51:52
+.TE
+.sp 2v
+vline left above hline bottom left:
+.TS
+doublebox allbox tab(:);
+  l l
+  l l
+| l l
+  _ l.
+11:12
+21:22
+31:32
+:42
+.TE
+.sp 2v
+vline right above hline bottom left:
+.TS
+doublebox allbox tab(:);
+l  l
+l  l
+l| l
+_  l.
+11:12
+21:22
+31:32
+:42
+.TE
+.sp 2v
+vline left above hline at the bottom:
+.TS
+doublebox allbox tab(:);
+l  l l
+l  l l
+l| l l
+l  _ l.
+11:12:13
+21:22:23
+31:32:33
+41::43
+.TE
+.sp 2v
+vline right above hline at the bottom:
+.TS
+doublebox allbox tab(:);
+l l  l
+l l  l
+l l| l
+l _  l.
+11:12:13
+21:22:23
+31:32:33
+41::43
+.TE
+.sp 2v
+vline above hline at the bottom:
+.TS
+doublebox allbox tab(:);
+l l  l l
+l l  l l
+l l| l l
+l _  _ l.
+11:12:13:14
+21:22:23:24
+31:32:33:34
+41:::44
+.TE
+.sp 2v
+vline left above hline bottom right:
+.TS
+doublebox allbox tab(:);
+l  l
+l  l
+l| l
+l  _.
+11:12
+21:22
+31:32
+41:
+.TE
+.sp 2v
+vline right above hline bottom right:
+.TS
+doublebox allbox tab(:);
+l l
+l l
+l l|
+l _.
+11:12
+21:22
+31:32
+41:
+.TE
+.sp 2v
+double vline left below hline top left:
+.TS
+doublebox allbox tab(:);
+   _ l
+|| l l
+   l l.
+:12
+21:22
+31:32
+.TE
+.sp 2v
+double vline right below hline top left:
+.TS
+doublebox allbox tab(:);
+_   l
+l|| l
+l   l.
+:12
+21:22
+31:32
+.TE
+.sp 2v
+double vline left below hline at the top:
+.TS
+doublebox allbox tab(:);
+l   _ l
+l|| l l
+l   l l.
+11::13
+21:22:23
+31:32:33
+.TE
+.sp 2v
+double vline right below hline at the top:
+.TS
+doublebox allbox tab(:);
+l _   l
+l l|| l
+l l   l.
+11::13
+21:22:23
+31:32:33
+.TE
+.sp 2v
+double vline below hline at the top:
+.TS
+doublebox allbox tab(:);
+l _   _ l
+l l|| l l
+l l   l l.
+11:::14
+21:22:23:24
+31:32:33:34
+.TE
+.sp 2v
+double vline left below hline top right:
+.TS
+doublebox allbox tab(:);
+l   _
+l|| l
+l   l.
+11:
+21:22
+31:32
+.TE
+.sp 2v
+double vline right below hline top right:
+.TS
+doublebox allbox tab(:);
+l _
+l l||
+l l.
+11:
+21:22
+31:32
+.TE
+.sp 2v
+double vline left below hline in front:
+.TS
+doublebox allbox tab(:);
+   l l
+   _ l
+|| l l
+   l l.
+11:12
+:22
+31:32
+41:42
+.TE
+.sp 2v
+double vline left above hline in front:
+.TS
+doublebox allbox tab(:);
+   l l
+   l l
+|| l l
+   _ l
+   l l.
+11:12
+21:22
+31:32
+:42
+51:52
+.TE
+.sp 2v
+double vline right below hline in front:
+.TS
+doublebox allbox tab(:);
+l   l
+_   l
+l|| l
+l   l.
+11:12
+:22
+31:32
+41:42
+.TE
+.sp 2v
+double vline right above hline in front:
+.TS
+doublebox allbox tab(:);
+l   l
+l   l
+l|| l
+_   l
+l   l.
+11:12
+21:22
+31:32
+:42
+51:52
+.TE
+.sp 2v
+double vline left below hline in the middle:
+.TS
+doublebox allbox tab(:);
+l   l l
+l   _ l
+l|| l l
+l   l l.
+11:12:13
+21::23
+31:32:33
+41:42:43
+.TE
+.sp 2v
+double vline left above hline in the middle:
+.TS
+doublebox allbox tab(:);
+l   l l
+l   l l
+l|| l l
+l   _ l
+l   l l.
+11:12:13
+21:22:23
+31:32:33
+41::43
+51:52:53
+.TE
+.sp 2v
+double vline right below hline in the middle:
+.TS
+doublebox allbox tab(:);
+l l   l
+l _   l
+l l|| l
+l l   l.
+11:12:13
+21::23
+31:32:33
+41:42:43
+.TE
+.sp 2v
+double vline right above hline in the middle:
+.TS
+doublebox allbox tab(:);
+l l   l
+l l   l
+l l|| l
+l _   l
+l l   l.
+11:12:13
+21:22:23
+31:32:33
+41::43
+51:52:53
+.TE
+.sp 2v
+double vline below hline in the middle:
+.TS
+doublebox allbox tab(:);
+l l   l l
+l _   _ l
+l l|| l l
+l l   l l.
+11:12:13:14
+21:::24
+31:32:33:34
+41:42:43:44
+.TE
+.sp 2v
+double vline above hline in the middle:
+.TS
+doublebox allbox tab(:);
+l l   l l
+l l   l l
+l l|| l l
+l _   _ l
+l l   l l.
+11:12:13:14
+21:22:23:24
+31:32:33:34
+41:::44
+51:52:53:54
+.TE
+.sp 2v
+double vline left below hline at the end:
+.TS
+doublebox allbox tab(:);
+l   l
+l   _
+l|| l
+l   l.
+11:12
+21:
+31:32
+41:42
+.TE
+.sp 2v
+double vline left above hline at the end:
+.TS
+doublebox allbox tab(:);
+l   l
+l   l
+l|| l
+l   _
+l   l.
+11:12
+21:22
+31:32
+41:
+51:52
+.TE
+.sp 2v
+double vline right below hline at the end:
+.TS
+doublebox allbox tab(:);
+l l
+l _
+l l||
+l l.
+11:12
+21:
+31:32
+41:42
+.TE
+.sp 2v
+double vline right above hline at the end:
+.TS
+doublebox allbox tab(:);
+l l
+l l
+l l||
+l _
+l l.
+11:12
+21:22
+31:32
+41:
+51:52
+.TE
+.sp 2v
+double vline left above hline bottom left:
+.TS
+doublebox allbox tab(:);
+   l l
+   l l
+|| l l
+   _ l.
+11:12
+21:22
+31:32
+:42
+.TE
+.sp 2v
+double vline right above hline bottom left:
+.TS
+doublebox allbox tab(:);
+l   l
+l   l
+l|| l
+_   l.
+11:12
+21:22
+31:32
+:42
+.TE
+.sp 2v
+double vline left above hline at the bottom:
+.TS
+doublebox allbox tab(:);
+l   l l
+l   l l
+l|| l l
+l   _ l.
+11:12:13
+21:22:23
+31:32:33
+41::43
+.TE
+.sp 2v
+double vline right above hline at the bottom:
+.TS
+doublebox allbox tab(:);
+l l   l
+l l   l
+l l|| l
+l _   l.
+11:12:13
+21:22:23
+31:32:33
+41::43
+.TE
+.sp 2v
+double vline above hline at the bottom:
+.TS
+doublebox allbox tab(:);
+l l   l l
+l l   l l
+l l|| l l
+l _   _ l.
+11:12:13:14
+21:22:23:24
+31:32:33:34
+41:::44
+.TE
+.sp 2v
+double vline left above hline bottom right:
+.TS
+doublebox allbox tab(:);
+l   l
+l   l
+l|| l
+l   _.
+11:12
+21:22
+31:32
+41:
+.TE
+.sp 2v
+double vline right above hline bottom right:
+.TS
+doublebox allbox tab(:);
+l l
+l l
+l l||
+l _.
+11:12
+21:22
+31:32
+41:
+.TE
+.sp 2v

Added: vendor/mandoc/dist/regress/tbl/layout/lines.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/lines.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/lines.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,4755 @@
+TBL-LAYOUT-LINES(1)         General Commands Manual        TBL-LAYOUT-LINES(1)
+
+NNAAMMEE
+     ttbbll--llaayyoouutt--lliinneess - table cells containing lines
+
+DDEESSCCRRIIPPTTIIOONN
+     hline top left:
+     ---- 12
+     21   22
+
+     hline top:
+     11 ------ 13
+     21   22   23
+
+     double hline top:
+     11 ----------- 13
+     21   22   23   24
+
+     hline top right:
+     11 -----
+     21   22
+
+     hline in front:
+     11   12
+     ---- 22
+     31   32
+
+     vline in front:
+      11   12
+     |21   22
+     |31   32
+      41   42
+
+     hline and vline in front:
+     11   12
+     21 | 22
+     ---+ 32
+     41   42
+
+     vline and hline in front:
+      11   12
+     |21   22
+     +---- 32
+      41   42
+
+     hline in the middle:
+     11   12   13
+     21 ------ 23
+     31   32   33
+
+     vline in the middle:
+     11   12   13
+     21 | 22   23
+     31 | 32   33
+     41   42   43
+
+     vline and hline in the middle:
+     11   12   13
+     21 | 22   23
+     31 +----- 33
+     41   42   43
+
+     hline and vline in the middle:
+     11   12   13
+     21   22 | 23
+     31 -----+ 33
+     41   42   43
+
+     double hline in the middle:
+     11   12   13   14
+     21 ----------- 24
+     31   32   33   34
+
+     hline, vline, hline in the middle:
+     11   12   13   14
+     21   22 | 23   24
+     31 -----+----- 34
+     41   42   43   44
+
+     hline at the end:
+     11   12
+     21 -----
+     31   32
+
+     vline at the end:
+     11   12
+     21   22 |
+     31   32 |
+     41   42
+
+     vline and hline at the end:
+     11   12
+     21 | 22
+     31 +----
+     41   42
+
+     hline and vline at the end:
+     11   12
+     21   22 |
+     31 -----+
+     41   42
+
+     hline bottom left:
+     11   12
+     ---- 22
+
+     vline bottom left:
+      11   12
+     |21   22
+     |31   32
+
+     hline and vline bottom left:
+     11   12
+     21 | 22
+     ---+ 32
+
+     vline and hline bottom left:
+      11   12
+     |21   22
+     +---- 32
+
+     double hline bottom:
+     11   12   13   14
+     21 ----------- 24
+
+     hline, vline, hline bottom:
+     11   12   13   14
+     21   22 | 23   24
+     31 -----+----- 34
+
+     hline bottom right:
+     11   12
+     21 -----
+
+     vline bottom right:
+     11   12
+     21   22 |
+     31   32 |
+
+     vline and hline bottom right:
+     11   12
+     21 | 22
+     31 +----
+
+     hline and vline bottom right:
+     11   12
+     21   22 |
+     31 -----+
+
+     double vline in front:
+      11   12
+     |21   22
+     |31   32
+      41   42
+
+     hline and double vline in front:
+     11   12
+     21 ||22
+     ---+|32
+     41   42
+
+     double vline and hline in front:
+      11   12
+     |21   22
+     +---- 32
+      41   42
+
+     double vline in the middle:
+     11   12   13
+     21 ||22   23
+     31 ||32   33
+     41   42   43
+
+     double vline and hline in the middle:
+     11   12   13
+     21 ||22   23
+     31 ++---- 33
+     41   42   43
+
+     hline and doble vline in the middle:
+     11   12   13
+     21   22 ||23
+     31 -----+|33
+     41   42   43
+
+     hline, double vline, hline in the middle:
+     11   12   13   14
+     21   22 ||23   24
+     31 -----++---- 34
+     41   42   43   44
+
+     double vline at the end:
+     11   12
+     21   22 |
+     31   32 |
+     41   42
+
+     double vline and hline at the end:
+     11   12
+     21 ||22
+     31 ++---
+     41   42
+
+     hline and double vline at the end:
+     11   12
+     21   22 |
+     31 -----+
+     41   42
+
+     double vline bottom left:
+      11   12
+     |21   22
+     |31   32
+
+     hline and double vline bottom left:
+     11   12
+     21 ||22
+     ---+|32
+
+     double vline and hline bottom left:
+      11   12
+     |21   22
+     +---- 32
+
+     hline, double vline, hline bottom:
+     11   12   13   14
+     21   22 ||23   24
+     31 -----++---- 34
+
+     double vline bottom right:
+     11   12
+     21   22 |
+     31   32 |
+
+     double vline and hline bottom right:
+     11   12
+     21 ||22
+     31 ++---
+
+     hline and double vline bottom right:
+     11   12
+     21   22 |
+     31 -----+
+
+     vline left below hline top left:
+     +---- 12
+     |21   22
+      31   32
+
+     vline right below hline top left:
+     ---+ 12
+     21 | 22
+     31   32
+
+     vline left below hline at the top:
+     11 +----- 13
+     21 | 22   23
+     31   32   33
+
+     vline right below hline at the top:
+     11 -----+ 13
+     21   22 | 23
+     31   32   33
+
+     vline below hline at the top:
+     11 -----+----- 14
+     21   22 | 23   24
+     31   32   33   34
+
+     vline left below hline top right:
+     11 +----
+     21 | 22
+     31   32
+
+     vline right below hline top right:
+     11 -----+
+     21   22 |
+     31   32
+
+     vline left below hline in front:
+      11   12
+     +---- 22
+     |31   32
+      41   42
+
+     vline left above hline in front:
+      11   12
+     |21   22
+     |31   32
+     +---- 42
+      51   52
+
+     vline right below hline in front:
+     11   12
+     ---+ 22
+     31 | 32
+     41   42
+
+     vline right above hline in front:
+     11   12
+     21 | 22
+     31 | 32
+     ---+ 42
+     51   52
+
+     vline left below hline in the middle:
+     11   12   13
+     21 +----- 23
+     31 | 32   33
+     41   42   43
+
+     vline left above hline in the middle:
+     11   12   13
+     21 | 22   23
+     31 | 32   33
+     41 +----- 43
+     51   52   53
+
+     vline right below hline in the middle:
+     11   12   13
+     21 -----+ 23
+     31   32 | 33
+     41   42   43
+
+     vline right above hline in the middle:
+     11   12   13
+     21   22 | 23
+     31   32 | 33
+     41 -----+ 43
+     51   52   53
+
+     vline below hline in the middle:
+     11   12   13   14
+     21 -----+----- 24
+     31   32 | 33   34
+     41   42   43   44
+
+     vline above hline in the middle:
+     11   12   13   14
+     21   22 | 23   24
+     31   32 | 33   34
+     41 -----+----- 44
+     51   52   53   54
+
+     vline left below hline at the end:
+     11   12
+     21 +----
+     31 | 32
+     41   42
+
+     vline left above hline at the end:
+     11   12
+     21 | 22
+     31 | 32
+     41 +----
+     51   52
+
+     vline right below hline at the end:
+     11   12
+     21 -----+
+     31   32 |
+     41   42
+
+     vline right above hline at the end:
+     11   12
+     21   22 |
+     31   32 |
+     41 -----+
+     51   52
+
+     vline left above hline bottom left:
+      11   12
+     |21   22
+     |31   32
+     +---- 42
+
+     vline right above hline bottom left:
+     11   12
+     21 | 22
+     31 | 32
+     ---+ 42
+
+     vline left above hline at the bottom:
+     11   12   13
+     21 | 22   23
+     31 | 32   33
+     41 +----- 43
+
+     vline right above hline at the bottom:
+     11   12   13
+     21   22 | 23
+     31   32 | 33
+     41 -----+ 43
+
+     vline above hline at the bottom:
+     11   12   13   14
+     21   22 | 23   24
+     31   32 | 33   34
+     41 -----+----- 44
+
+     vline left above hline bottom right:
+     11   12
+     21 | 22
+     31 | 32
+     41 +----
+
+     vline right above hline bottom right:
+     11   12
+     21   22 |
+     31   32 |
+     41 -----+
+
+     double vline left below hline top left:
+     +---- 12
+     |21   22
+      31   32
+
+     double vline right below hline top left:
+     ---+|12
+     21 ||22
+     31   32
+
+     double vline left below hline at the top:
+     11 ++---- 13
+     21 ||22   23
+     31   32   33
+
+     double vline right below hline at the top:
+     11 -----+|13
+     21   22 ||23
+     31   32   33
+
+     double vline below hline at the top:
+     11 -----++---- 14
+     21   22 ||23   24
+     31   32   33   34
+
+     double vline left below hline top right:
+     11 ++---
+     21 ||22
+     31   32
+
+     double vline right below hline top right:
+     11 -----+
+     21   22 |
+     31   32
+
+     double vline left below hline in front:
+      11   12
+     +---- 22
+     |31   32
+      41   42
+
+     double vline left above hline in front:
+      11   12
+     |21   22
+     |31   32
+     +---- 42
+      51   52
+
+     double vline right below hline in front:
+     11   12
+     ---+|22
+     31 ||32
+     41   42
+
+     double vline right above hline in front:
+     11   12
+     21 ||22
+     31 ||32
+     ---+|42
+     51   52
+
+     double vline left below hline in the middle:
+     11   12   13
+     21 ++---- 23
+     31 ||32   33
+     41   42   43
+
+     double vline left above hline in the middle:
+     11   12   13
+     21 ||22   23
+     31 ||32   33
+     41 ++---- 43
+     51   52   53
+
+     double vline right below hline in the middle:
+     11   12   13
+     21 -----+|23
+     31   32 ||33
+     41   42   43
+
+     double vline right above hline in the middle:
+     11   12   13
+     21   22 ||23
+     31   32 ||33
+     41 -----+|43
+     51   52   53
+
+     double vline below hline in the middle:
+     11   12   13   14
+     21 -----++---- 24
+     31   32 ||33   34
+     41   42   43   44
+
+     double vline above hline in the middle:
+     11   12   13   14
+     21   22 ||23   24
+     31   32 ||33   34
+     41 -----++---- 44
+     51   52   53   54
+
+     double vline left below hline at the end:
+     11   12
+     21 ++---
+     31 ||32
+     41   42
+
+     double vline left above hline at the end:
+     11   12
+     21 ||22
+     31 ||32
+     41 ++---
+     51   52
+
+     double vline right below hline at the end:
+     11   12
+     21 -----+
+     31   32 |
+     41   42
+
+     double vline right above hline at the end:
+     11   12
+     21   22 |
+     31   32 |
+     41 -----+
+     51   52
+
+     double vline left above hline bottom left:
+      11   12
+     |21   22
+     |31   32
+     +---- 42
+
+     double vline right above hline bottom left:
+     11   12
+     21 ||22
+     31 ||32
+     ---+|42
+
+     double vline left above hline at the bottom:
+     11   12   13
+     21 ||22   23
+     31 ||32   33
+     41 ++---- 43
+
+     double vline right above hline at the bottom:
+     11   12   13
+     21   22 ||23
+     31   32 ||33
+     41 -----+|43
+
+     double vline above hline at the bottom:
+     11   12   13   14
+     21   22 ||23   24
+     31   32 ||33   34
+     41 -----++---- 44
+
+     double vline left above hline bottom right:
+     11   12
+     21 ||22
+     31 ||32
+     41 ++---
+
+     double vline right above hline bottom right:
+     11   12
+     21   22 |
+     31   32 |
+     41 -----+
+
+BBOOXXEEDD
+     vline top left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     hline and vline top left:
+     +---+----+
+     +---+ 12 |
+     |21   22 |
+     +--------+
+     vline and hline top left:
+     +--------+
+     +---- 12 |
+     |21   22 |
+     +--------+
+     vline top:
+     +---+----+
+     |11 | 12 |
+     |21   22 |
+     +--------+
+     vline and hline top:
+     +---+---------+
+     |11 +----- 13 |
+     |21   22   23 |
+     +-------------+
+     hline and vline top:
+     +--------+----+
+     |11 -----+ 13 |
+     |21   22   23 |
+     +-------------+
+     hline, vline, hline top:
+     +--------+---------+
+     |11 -----+----- 13 |
+     |21   22   23   24 |
+     +------------------+
+     vline top right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     vline and hline top right:
+     +---+----+
+     |11 +----+
+     |21   22 |
+     +--------+
+     hline and vline top right:
+     +--------+
+     |11 -----+
+     |21   22 |
+     +--------+
+     double vline top left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     hline and double vline top left:
+     +---++---+
+     +---+|12 |
+     |21   22 |
+     +--------+
+     double vline and hline top left:
+     +--------+
+     +---- 12 |
+     |21   22 |
+     +--------+
+     double vline top:
+     +---++---+
+     |11 ||12 |
+     |21   22 |
+     +--------+
+     double vline and hline top:
+     +---++--------+
+     |11 ++---- 13 |
+     |21   22   23 |
+     +-------------+
+     hline and double vline top:
+     +--------++---+
+     |11 -----+|13 |
+     |21   22   23 |
+     +-------------+
+     hline, double vline, hline top:
+     +--------++--------+
+     |11 -----++---- 13 |
+     |21   22   23   24 |
+     +------------------+
+     double vline top right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     double vline and hline top right:
+     +---++---+
+     |11 ++---+
+     |21   22 |
+     +--------+
+     hline and double vline top right:
+     +--------+
+     |11 -----+
+     |21   22 |
+     +--------+
+     hline top left:
+     +--------+
+     +---- 12 |
+     |21   22 |
+     +--------+
+     hline top:
+     +-------------+
+     |11 ------ 13 |
+     |21   22   23 |
+     +-------------+
+     double hline top:
+     +------------------+
+     |11 ----------- 13 |
+     |21   22   23   24 |
+     +------------------+
+     hline top right:
+     +--------+
+     |11 -----+
+     |21   22 |
+     +--------+
+     hline in front:
+     +--------+
+     |11   12 |
+     +---- 22 |
+     |31   32 |
+     +--------+
+     vline in front:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     hline and vline in front:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     +---+ 32 |
+     |41   42 |
+     +--------+
+     vline and hline in front:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     |41   42 |
+     +--------+
+     hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 ------ 23 |
+     |31   32   33 |
+     +-------------+
+     vline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 | 32   33 |
+     |41   42   43 |
+     +-------------+
+     vline and hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 +----- 33 |
+     |41   42   43 |
+     +-------------+
+     hline and vline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21   22 | 23 |
+     |31 -----+ 33 |
+     |41   42   43 |
+     +-------------+
+     double hline in the middle:
+     +------------------+
+     |11   12   13   14 |
+     |21 ----------- 24 |
+     |31   32   33   34 |
+     +------------------+
+     hline, vline, hline in the middle:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31 -----+----- 34 |
+     |41   42   43   44 |
+     +------------------+
+     hline at the end:
+     +--------+
+     |11   12 |
+     |21 -----+
+     |31   32 |
+     +--------+
+     vline at the end:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     vline and hline at the end:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 +----+
+     |41   42 |
+     +--------+
+     hline and vline at the end:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     |41   42 |
+     +--------+
+     hline bottom left:
+     +--------+
+     |11   12 |
+     +---- 22 |
+     +--------+
+     vline bottom left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     hline and vline bottom left:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     +---+ 32 |
+     +---+----+
+     vline and hline bottom left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     +--------+
+     double hline bottom:
+     +------------------+
+     |11   12   13   14 |
+     |21 ----------- 24 |
+     +------------------+
+     hline, vline, hline bottom:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31 -----+----- 34 |
+     +--------+---------+
+     hline bottom right:
+     +--------+
+     |11   12 |
+     |21 -----+
+     +--------+
+     vline bottom right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     vline and hline bottom right:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 +----+
+     +---+----+
+     hline and vline bottom right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     +--------+
+     double vline in front:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     hline and double vline in front:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     +---+|32 |
+     |41   42 |
+     +--------+
+     double vline and hline in front:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     |41   42 |
+     +--------+
+     double vline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ||32   33 |
+     |41   42   43 |
+     +-------------+
+     double vline and hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ++---- 33 |
+     |41   42   43 |
+     +-------------+
+     hline and doble vline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21   22 ||23 |
+     |31 -----+|33 |
+     |41   42   43 |
+     +-------------+
+     hline, double vline, hline in the middle:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31 -----++---- 34 |
+     |41   42   43   44 |
+     +------------------+
+     double vline at the end:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     double vline and hline at the end:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ++---+
+     |41   42 |
+     +--------+
+     hline and double vline at the end:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     |41   42 |
+     +--------+
+     double vline bottom left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     hline and double vline bottom left:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     +---+|32 |
+     +---++---+
+     double vline and hline bottom left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     +--------+
+     hline, double vline, hline bottom:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31 -----++---- 34 |
+     +--------++--------+
+     double vline bottom right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     double vline and hline bottom right:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ++---+
+     +---++---+
+     hline and double vline bottom right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     +--------+
+     vline left below hline top left:
+     +--------+
+     +---- 12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     vline right below hline top left:
+     +--------+
+     +---+ 12 |
+     |21 | 22 |
+     |31   32 |
+     +--------+
+     vline left below hline at the top:
+     +-------------+
+     |11 +----- 13 |
+     |21 | 22   23 |
+     |31   32   33 |
+     +-------------+
+     vline right below hline at the top:
+     +-------------+
+     |11 -----+ 13 |
+     |21   22 | 23 |
+     |31   32   33 |
+     +-------------+
+     vline below hline at the top:
+     +------------------+
+     |11 -----+----- 14 |
+     |21   22 | 23   24 |
+     |31   32   33   34 |
+     +------------------+
+     vline left below hline top right:
+     +--------+
+     |11 +----+
+     |21 | 22 |
+     |31   32 |
+     +--------+
+     vline right below hline top right:
+     +--------+
+     |11 -----+
+     |21   22 |
+     |31   32 |
+     +--------+
+     vline left below hline in front:
+     +--------+
+     |11   12 |
+     +---- 22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     vline left above hline in front:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     |51   52 |
+     +--------+
+     vline right below hline in front:
+     +--------+
+     |11   12 |
+     +---+ 22 |
+     |31 | 32 |
+     |41   42 |
+     +--------+
+     vline right above hline in front:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     +---+ 42 |
+     |51   52 |
+     +--------+
+     vline left below hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 +----- 23 |
+     |31 | 32   33 |
+     |41   42   43 |
+     +-------------+
+     vline left above hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 | 32   33 |
+     |41 +----- 43 |
+     |51   52   53 |
+     +-------------+
+     vline right below hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 -----+ 23 |
+     |31   32 | 33 |
+     |41   42   43 |
+     +-------------+
+     vline right above hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21   22 | 23 |
+     |31   32 | 33 |
+     |41 -----+ 43 |
+     |51   52   53 |
+     +-------------+
+     vline below hline in the middle:
+     +------------------+
+     |11   12   13   14 |
+     |21 -----+----- 24 |
+     |31   32 | 33   34 |
+     |41   42   43   44 |
+     +------------------+
+     vline above hline in the middle:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31   32 | 33   34 |
+     |41 -----+----- 44 |
+     |51   52   53   54 |
+     +------------------+
+     vline left below hline at the end:
+     +--------+
+     |11   12 |
+     |21 +----+
+     |31 | 32 |
+     |41   42 |
+     +--------+
+     vline left above hline at the end:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     |41 +----+
+     |51   52 |
+     +--------+
+     vline right below hline at the end:
+     +--------+
+     |11   12 |
+     |21 -----+
+     |31   32 |
+     |41   42 |
+     +--------+
+     vline right above hline at the end:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     |51   52 |
+     +--------+
+     vline left above hline bottom left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     +--------+
+     vline right above hline bottom left:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     +---+ 42 |
+     +--------+
+     vline left above hline at the bottom:
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 | 32   33 |
+     |41 +----- 43 |
+     +-------------+
+     vline right above hline at the bottom:
+     +-------------+
+     |11   12   13 |
+     |21   22 | 23 |
+     |31   32 | 33 |
+     |41 -----+ 43 |
+     +-------------+
+     vline above hline at the bottom:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31   32 | 33   34 |
+     |41 -----+----- 44 |
+     +------------------+
+     vline left above hline bottom right:
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     |41 +----+
+     +--------+
+     vline right above hline bottom right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     +--------+
+     double vline left below hline top left:
+     +--------+
+     +---- 12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     double vline right below hline top left:
+     +--------+
+     +---+|12 |
+     |21 ||22 |
+     |31   32 |
+     +--------+
+     double vline left below hline at the top:
+     +-------------+
+     |11 ++---- 13 |
+     |21 ||22   23 |
+     |31   32   33 |
+     +-------------+
+     double vline right below hline at the top:
+     +-------------+
+     |11 -----+|13 |
+     |21   22 ||23 |
+     |31   32   33 |
+     +-------------+
+     double vline below hline at the top:
+     +------------------+
+     |11 -----++---- 14 |
+     |21   22 ||23   24 |
+     |31   32   33   34 |
+     +------------------+
+     double vline left below hline top right:
+     +--------+
+     |11 ++---+
+     |21 ||22 |
+     |31   32 |
+     +--------+
+     double vline right below hline top right:
+     +--------+
+     |11 -----+
+     |21   22 |
+     |31   32 |
+     +--------+
+     double vline left below hline in front:
+     +--------+
+     |11   12 |
+     +---- 22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     double vline left above hline in front:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     |51   52 |
+     +--------+
+     double vline right below hline in front:
+     +--------+
+     |11   12 |
+     +---+|22 |
+     |31 ||32 |
+     |41   42 |
+     +--------+
+     double vline right above hline in front:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     +---+|42 |
+     |51   52 |
+     +--------+
+     double vline left below hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 ++---- 23 |
+     |31 ||32   33 |
+     |41   42   43 |
+     +-------------+
+     double vline left above hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ||32   33 |
+     |41 ++---- 43 |
+     |51   52   53 |
+     +-------------+
+     double vline right below hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21 -----+|23 |
+     |31   32 ||33 |
+     |41   42   43 |
+     +-------------+
+     double vline right above hline in the middle:
+     +-------------+
+     |11   12   13 |
+     |21   22 ||23 |
+     |31   32 ||33 |
+     |41 -----+|43 |
+     |51   52   53 |
+     +-------------+
+     double vline below hline in the middle:
+     +------------------+
+     |11   12   13   14 |
+     |21 -----++---- 24 |
+     |31   32 ||33   34 |
+     |41   42   43   44 |
+     +------------------+
+     double vline above hline in the middle:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31   32 ||33   34 |
+     |41 -----++---- 44 |
+     |51   52   53   54 |
+     +------------------+
+     double vline left below hline at the end:
+     +--------+
+     |11   12 |
+     |21 ++---+
+     |31 ||32 |
+     |41   42 |
+     +--------+
+     double vline left above hline at the end:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     |41 ++---+
+     |51   52 |
+     +--------+
+     double vline right below hline at the end:
+     +--------+
+     |11   12 |
+     |21 -----+
+     |31   32 |
+     |41   42 |
+     +--------+
+     double vline right above hline at the end:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     |51   52 |
+     +--------+
+     double vline left above hline bottom left:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     +--------+
+     double vline right above hline bottom left:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     +---+|42 |
+     +--------+
+     double vline left above hline at the bottom:
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ||32   33 |
+     |41 ++---- 43 |
+     +-------------+
+     double vline right above hline at the bottom:
+     +-------------+
+     |11   12   13 |
+     |21   22 ||23 |
+     |31   32 ||33 |
+     |41 -----+|43 |
+     +-------------+
+     double vline above hline at the bottom:
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31   32 ||33   34 |
+     |41 -----++---- 44 |
+     +------------------+
+     double vline left above hline bottom right:
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     |41 ++---+
+     +--------+
+     double vline right above hline bottom right:
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     +--------+
+
+AALLLLBBOOXX
+     vline top left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     hline and vline top left:
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     vline and hline top left:
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     vline top:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     vline and hline top:
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     hline and vline top:
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     hline, vline, hline top:
+     +---+----+----+----+
+     |11 +----+----+ 13 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     vline top right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     vline and hline top right:
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     hline and vline top right:
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     double vline top left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     hline and double vline top left:
+     +---++---+
+     +---+|12 |
+     +---++---+
+     |21 | 22 |
+     +---+----+
+     double vline and hline top left:
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     double vline top:
+     +---++---+
+     |11 ||12 |
+     +---++---+
+     |21 | 22 |
+     +---+----+
+     double vline and hline top:
+     +---++---+----+
+     |11 ++---+ 13 |
+     +---++---+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     hline and double vline top:
+     +---+----++---+
+     |11 +----+|13 |
+     +---+----++---+
+     |21 | 22 | 23 |
+     +---+----+----+
+     hline, double vline, hline top:
+     +---+----++---+----+
+     |11 +----++---+ 13 |
+     +---+----++---+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     double vline top right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     double vline and hline top right:
+     +---++---+
+     |11 ++---+
+     +---++---+
+     |21 | 22 |
+     +---+----+
+     hline and double vline top right:
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     hline top left:
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     hline top:
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     double hline top:
+     +---+----+----+----+
+     |11 +----+----+ 13 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     hline top right:
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     vline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     hline and vline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     vline and hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     vline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     vline and hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 +----+ 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     hline and vline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 +----+ 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     double hline in the middle:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     hline, vline, hline in the middle:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 +----+----+ 34 |
+     +---+----+----+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     vline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     vline and hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     hline and vline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     hline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     vline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     hline and vline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     vline and hline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     double hline bottom:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----+----+----+
+     hline, vline, hline bottom:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 +----+----+ 34 |
+     +---+----+----+----+
+     hline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     vline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     vline and hline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     hline and vline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     double vline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     hline and double vline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     +---+|32 |
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     double vline and hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     double vline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     double vline and hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ++---+ 33 |
+     +---++---+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     hline and doble vline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----++---+
+     |31 +----+|33 |
+     +---+----++---+
+     |41 | 42 | 43 |
+     +---+----+----+
+     hline, double vline, hline in the middle:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 +----++---+ 34 |
+     +---+----++---+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     double vline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     double vline and hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ++---+
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     hline and double vline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     double vline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     hline and double vline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     +---+|32 |
+     +---++---+
+     double vline and hline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     hline, double vline, hline bottom:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 +----++---+ 34 |
+     +---+----++---+----+
+     double vline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     double vline and hline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ++---+
+     +---++---+
+     hline and double vline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     vline left below hline top left:
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     vline right below hline top left:
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     vline left below hline at the top:
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     vline right below hline at the top:
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     vline below hline at the top:
+     +---+----+----+----+
+     |11 +----+----+ 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     vline left below hline top right:
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     vline right below hline top right:
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     vline left below hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     vline left above hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     vline right below hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     vline right above hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     vline left below hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     vline left above hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     vline right below hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     vline right above hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     vline below hline in the middle:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     vline above hline in the middle:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     |41 +----+----+ 44 |
+     +---+----+----+----+
+     |51 | 52 | 53 | 54 |
+     +---+----+----+----+
+     vline left below hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     vline left above hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     vline right below hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     vline right above hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     vline left above hline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     vline right above hline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     vline left above hline at the bottom:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     vline right above hline at the bottom:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     vline above hline at the bottom:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     |41 +----+----+ 44 |
+     +---+----+----+----+
+     vline left above hline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     vline right above hline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     double vline left below hline top left:
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     double vline right below hline top left:
+     +---+----+
+     +---+ 12 |
+     +---++---+
+     |21 ||22 |
+     +---++---+
+     |31 | 32 |
+     +---+----+
+     double vline left below hline at the top:
+     +---+----+----+
+     |11 +----+ 13 |
+     +---++---+----+
+     |21 ||22 | 23 |
+     +---++---+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     double vline right below hline at the top:
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----++---+
+     |21 | 22 ||23 |
+     +---+----++---+
+     |31 | 32 | 33 |
+     +---+----+----+
+     double vline below hline at the top:
+     +---+----+----+----+
+     |11 +----+----+ 14 |
+     +---+----++---+----+
+     |21 | 22 ||23 | 24 |
+     +---+----++---+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     double vline left below hline top right:
+     +---+----+
+     |11 +----+
+     +---++---+
+     |21 ||22 |
+     +---++---+
+     |31 | 32 |
+     +---+----+
+     double vline right below hline top right:
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     double vline left below hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     double vline left above hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     double vline right below hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     double vline right above hline in front:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     +---+|42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     double vline left below hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     double vline left above hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 ++---+ 43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     double vline right below hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----++---+
+     |31 | 32 ||33 |
+     +---+----++---+
+     |41 | 42 | 43 |
+     +---+----+----+
+     double vline right above hline in the middle:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----++---+
+     |31 | 32 ||33 |
+     +---+----++---+
+     |41 +----+|43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     double vline below hline in the middle:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----++---+----+
+     |31 | 32 ||33 | 34 |
+     +---+----++---+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     double vline above hline in the middle:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 | 32 ||33 | 34 |
+     +---+----++---+----+
+     |41 +----++---+ 44 |
+     +---+----+----+----+
+     |51 | 52 | 53 | 54 |
+     +---+----+----+----+
+     double vline left below hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     double vline left above hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 ++---+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     double vline right below hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     double vline right above hline at the end:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     double vline left above hline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     double vline right above hline bottom left:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     +---+|42 |
+     +---+----+
+     double vline left above hline at the bottom:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 ++---+ 43 |
+     +---+----+----+
+     double vline right above hline at the bottom:
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----++---+
+     |31 | 32 ||33 |
+     +---+----++---+
+     |41 +----+|43 |
+     +---+----+----+
+     double vline above hline at the bottom:
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 | 32 ||33 | 34 |
+     +---+----++---+----+
+     |41 +----++---+ 44 |
+     +---+----+----+----+
+     double vline left above hline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 ++---+
+     +---+----+
+     double vline right above hline bottom right:
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+
+DDOOUUBBLLEEBBOOXX
+     vline top left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     +--------+
+     hline and vline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     |21   22 |
+     +--------+
+     +--------+
+     vline and hline top left:
+     +--------+
+     +--------+
+     +---- 12 |
+     |21   22 |
+     +--------+
+     +--------+
+     vline top:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     |21   22 |
+     +--------+
+     +--------+
+     vline and hline top:
+     +-------------+
+     +---+---------+
+     |11 +----- 13 |
+     |21   22   23 |
+     +-------------+
+     +-------------+
+     hline and vline top:
+     +-------------+
+     +--------+----+
+     |11 -----+ 13 |
+     |21   22   23 |
+     +-------------+
+     +-------------+
+     hline, vline, hline top:
+     +------------------+
+     +--------+---------+
+     |11 -----+----- 13 |
+     |21   22   23   24 |
+     +------------------+
+     +------------------+
+     vline top right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     +--------+
+     vline and hline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     |21   22 |
+     +--------+
+     +--------+
+     hline and vline top right:
+     +--------+
+     +--------+
+     |11 -----+
+     |21   22 |
+     +--------+
+     +--------+
+     double vline top left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     +--------+
+     hline and double vline top left:
+     +--------+
+     +---++---+
+     +---+|12 |
+     |21   22 |
+     +--------+
+     +--------+
+     double vline and hline top left:
+     +--------+
+     +--------+
+     +---- 12 |
+     |21   22 |
+     +--------+
+     +--------+
+     double vline top:
+     +--------+
+     +---++---+
+     |11 ||12 |
+     |21   22 |
+     +--------+
+     +--------+
+     double vline and hline top:
+     +-------------+
+     +---++--------+
+     |11 ++---- 13 |
+     |21   22   23 |
+     +-------------+
+     +-------------+
+     hline and double vline top:
+     +-------------+
+     +--------++---+
+     |11 -----+|13 |
+     |21   22   23 |
+     +-------------+
+     +-------------+
+     hline, double vline, hline top:
+     +------------------+
+     +--------++--------+
+     |11 -----++---- 13 |
+     |21   22   23   24 |
+     +------------------+
+     +------------------+
+     double vline top right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +--------+
+     +--------+
+     double vline and hline top right:
+     +--------+
+     +---++---+
+     |11 ++---+
+     |21   22 |
+     +--------+
+     +--------+
+     hline and double vline top right:
+     +--------+
+     +--------+
+     |11 -----+
+     |21   22 |
+     +--------+
+     +--------+
+     hline top left:
+     +--------+
+     +--------+
+     +---- 12 |
+     |21   22 |
+     +--------+
+     +--------+
+     hline top:
+     +-------------+
+     +-------------+
+     |11 ------ 13 |
+     |21   22   23 |
+     +-------------+
+     +-------------+
+     double hline top:
+     +------------------+
+     +------------------+
+     |11 ----------- 13 |
+     |21   22   23   24 |
+     +------------------+
+     +------------------+
+     hline top right:
+     +--------+
+     +--------+
+     |11 -----+
+     |21   22 |
+     +--------+
+     +--------+
+     hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     +---- 22 |
+     |31   32 |
+     +--------+
+     +--------+
+     vline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     hline and vline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     +---+ 32 |
+     |41   42 |
+     +--------+
+     +--------+
+     vline and hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     |41   42 |
+     +--------+
+     +--------+
+     hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 ------ 23 |
+     |31   32   33 |
+     +-------------+
+     +-------------+
+     vline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 | 32   33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     vline and hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 +----- 33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     hline and vline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21   22 | 23 |
+     |31 -----+ 33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     double hline in the middle:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21 ----------- 24 |
+     |31   32   33   34 |
+     +------------------+
+     +------------------+
+     hline, vline, hline in the middle:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31 -----+----- 34 |
+     |41   42   43   44 |
+     +------------------+
+     +------------------+
+     hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 -----+
+     |31   32 |
+     +--------+
+     +--------+
+     vline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     vline and hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 +----+
+     |41   42 |
+     +--------+
+     +--------+
+     hline and vline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     |41   42 |
+     +--------+
+     +--------+
+     hline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     +---- 22 |
+     +--------+
+     +--------+
+     vline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     hline and vline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     +---+ 32 |
+     +---+----+
+     +--------+
+     vline and hline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     +--------+
+     +--------+
+     double hline bottom:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21 ----------- 24 |
+     +------------------+
+     +------------------+
+     hline, vline, hline bottom:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31 -----+----- 34 |
+     +--------+---------+
+     +------------------+
+     hline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 -----+
+     +--------+
+     +--------+
+     vline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     vline and hline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 +----+
+     +---+----+
+     +--------+
+     hline and vline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     +--------+
+     +--------+
+     double vline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     hline and double vline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     +---+|32 |
+     |41   42 |
+     +--------+
+     +--------+
+     double vline and hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     |41   42 |
+     +--------+
+     +--------+
+     double vline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ||32   33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     double vline and hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ++---- 33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     hline and doble vline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21   22 ||23 |
+     |31 -----+|33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     hline, double vline, hline in the middle:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31 -----++---- 34 |
+     |41   42   43   44 |
+     +------------------+
+     +------------------+
+     double vline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     double vline and hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ++---+
+     |41   42 |
+     +--------+
+     +--------+
+     hline and double vline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     |41   42 |
+     +--------+
+     +--------+
+     double vline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     hline and double vline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     +---+|32 |
+     +---++---+
+     +--------+
+     double vline and hline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     +---- 32 |
+     +--------+
+     +--------+
+     hline, double vline, hline bottom:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31 -----++---- 34 |
+     +--------++--------+
+     +------------------+
+     double vline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     double vline and hline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ++---+
+     +---++---+
+     +--------+
+     hline and double vline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31 -----+
+     +--------+
+     +--------+
+     vline left below hline top left:
+     +--------+
+     +--------+
+     +---- 12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     vline right below hline top left:
+     +--------+
+     +--------+
+     +---+ 12 |
+     |21 | 22 |
+     |31   32 |
+     +--------+
+     +--------+
+     vline left below hline at the top:
+     +-------------+
+     +-------------+
+     |11 +----- 13 |
+     |21 | 22   23 |
+     |31   32   33 |
+     +-------------+
+     +-------------+
+     vline right below hline at the top:
+     +-------------+
+     +-------------+
+     |11 -----+ 13 |
+     |21   22 | 23 |
+     |31   32   33 |
+     +-------------+
+     +-------------+
+     vline below hline at the top:
+     +------------------+
+     +------------------+
+     |11 -----+----- 14 |
+     |21   22 | 23   24 |
+     |31   32   33   34 |
+     +------------------+
+     +------------------+
+     vline left below hline top right:
+     +--------+
+     +--------+
+     |11 +----+
+     |21 | 22 |
+     |31   32 |
+     +--------+
+     +--------+
+     vline right below hline top right:
+     +--------+
+     +--------+
+     |11 -----+
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     vline left below hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     +---- 22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     vline left above hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     |51   52 |
+     +--------+
+     +--------+
+     vline right below hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     +---+ 22 |
+     |31 | 32 |
+     |41   42 |
+     +--------+
+     +--------+
+     vline right above hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     +---+ 42 |
+     |51   52 |
+     +--------+
+     +--------+
+     vline left below hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 +----- 23 |
+     |31 | 32   33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     vline left above hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 | 32   33 |
+     |41 +----- 43 |
+     |51   52   53 |
+     +-------------+
+     +-------------+
+     vline right below hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 -----+ 23 |
+     |31   32 | 33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     vline right above hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21   22 | 23 |
+     |31   32 | 33 |
+     |41 -----+ 43 |
+     |51   52   53 |
+     +-------------+
+     +-------------+
+     vline below hline in the middle:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21 -----+----- 24 |
+     |31   32 | 33   34 |
+     |41   42   43   44 |
+     +------------------+
+     +------------------+
+     vline above hline in the middle:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31   32 | 33   34 |
+     |41 -----+----- 44 |
+     |51   52   53   54 |
+     +------------------+
+     +------------------+
+     vline left below hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 +----+
+     |31 | 32 |
+     |41   42 |
+     +--------+
+     +--------+
+     vline left above hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     |41 +----+
+     |51   52 |
+     +--------+
+     +--------+
+     vline right below hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 -----+
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     vline right above hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     |51   52 |
+     +--------+
+     +--------+
+     vline left above hline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     +--------+
+     +--------+
+     vline right above hline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     +---+ 42 |
+     +--------+
+     +--------+
+     vline left above hline at the bottom:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 | 22   23 |
+     |31 | 32   33 |
+     |41 +----- 43 |
+     +-------------+
+     +-------------+
+     vline right above hline at the bottom:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21   22 | 23 |
+     |31   32 | 33 |
+     |41 -----+ 43 |
+     +-------------+
+     +-------------+
+     vline above hline at the bottom:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 | 23   24 |
+     |31   32 | 33   34 |
+     |41 -----+----- 44 |
+     +------------------+
+     +------------------+
+     vline left above hline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 | 22 |
+     |31 | 32 |
+     |41 +----+
+     +--------+
+     +--------+
+     vline right above hline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     +--------+
+     +--------+
+     double vline left below hline top left:
+     +--------+
+     +--------+
+     +---- 12 |
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     double vline right below hline top left:
+     +--------+
+     +--------+
+     +---+|12 |
+     |21 ||22 |
+     |31   32 |
+     +--------+
+     +--------+
+     double vline left below hline at the top:
+     +-------------+
+     +-------------+
+     |11 ++---- 13 |
+     |21 ||22   23 |
+     |31   32   33 |
+     +-------------+
+     +-------------+
+     double vline right below hline at the top:
+     +-------------+
+     +-------------+
+     |11 -----+|13 |
+     |21   22 ||23 |
+     |31   32   33 |
+     +-------------+
+     +-------------+
+     double vline below hline at the top:
+     +------------------+
+     +------------------+
+     |11 -----++---- 14 |
+     |21   22 ||23   24 |
+     |31   32   33   34 |
+     +------------------+
+     +------------------+
+     double vline left below hline top right:
+     +--------+
+     +--------+
+     |11 ++---+
+     |21 ||22 |
+     |31   32 |
+     +--------+
+     +--------+
+     double vline right below hline top right:
+     +--------+
+     +--------+
+     |11 -----+
+     |21   22 |
+     |31   32 |
+     +--------+
+     +--------+
+     double vline left below hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     +---- 22 |
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     double vline left above hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     |51   52 |
+     +--------+
+     +--------+
+     double vline right below hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     +---+|22 |
+     |31 ||32 |
+     |41   42 |
+     +--------+
+     +--------+
+     double vline right above hline in front:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     +---+|42 |
+     |51   52 |
+     +--------+
+     +--------+
+     double vline left below hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 ++---- 23 |
+     |31 ||32   33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     double vline left above hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ||32   33 |
+     |41 ++---- 43 |
+     |51   52   53 |
+     +-------------+
+     +-------------+
+     double vline right below hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 -----+|23 |
+     |31   32 ||33 |
+     |41   42   43 |
+     +-------------+
+     +-------------+
+     double vline right above hline in the middle:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21   22 ||23 |
+     |31   32 ||33 |
+     |41 -----+|43 |
+     |51   52   53 |
+     +-------------+
+     +-------------+
+     double vline below hline in the middle:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21 -----++---- 24 |
+     |31   32 ||33   34 |
+     |41   42   43   44 |
+     +------------------+
+     +------------------+
+     double vline above hline in the middle:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31   32 ||33   34 |
+     |41 -----++---- 44 |
+     |51   52   53   54 |
+     +------------------+
+     +------------------+
+     double vline left below hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ++---+
+     |31 ||32 |
+     |41   42 |
+     +--------+
+     +--------+
+     double vline left above hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     |41 ++---+
+     |51   52 |
+     +--------+
+     +--------+
+     double vline right below hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 -----+
+     |31   32 |
+     |41   42 |
+     +--------+
+     +--------+
+     double vline right above hline at the end:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     |51   52 |
+     +--------+
+     +--------+
+     double vline left above hline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     +---- 42 |
+     +--------+
+     +--------+
+     double vline right above hline bottom left:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     +---+|42 |
+     +--------+
+     +--------+
+     double vline left above hline at the bottom:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21 ||22   23 |
+     |31 ||32   33 |
+     |41 ++---- 43 |
+     +-------------+
+     +-------------+
+     double vline right above hline at the bottom:
+     +-------------+
+     +-------------+
+     |11   12   13 |
+     |21   22 ||23 |
+     |31   32 ||33 |
+     |41 -----+|43 |
+     +-------------+
+     +-------------+
+     double vline above hline at the bottom:
+     +------------------+
+     +------------------+
+     |11   12   13   14 |
+     |21   22 ||23   24 |
+     |31   32 ||33   34 |
+     |41 -----++---- 44 |
+     +------------------+
+     +------------------+
+     double vline left above hline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21 ||22 |
+     |31 ||32 |
+     |41 ++---+
+     +--------+
+     +--------+
+     double vline right above hline bottom right:
+     +--------+
+     +--------+
+     |11   12 |
+     |21   22 |
+     |31   32 |
+     |41 -----+
+     +--------+
+     +--------+
+
+DDOOUUBBLLEEBBOOXX AALLLLBBOOXX
+     vline top left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     hline and vline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     vline and hline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     vline top:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     vline and hline top:
+     +-------------+
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     +-------------+
+     hline and vline top:
+     +-------------+
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     +-------------+
+     hline, vline, hline top:
+     +------------------+
+     +---+----+----+----+
+     |11 +----+----+ 13 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     +------------------+
+     vline top right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     vline and hline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     hline and vline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     double vline top left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     hline and double vline top left:
+     +--------+
+     +---++---+
+     +---+|12 |
+     +---++---+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     double vline and hline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     double vline top:
+     +--------+
+     +---++---+
+     |11 ||12 |
+     +---++---+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     double vline and hline top:
+     +-------------+
+     +---++---+----+
+     |11 ++---+ 13 |
+     +---++---+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     +-------------+
+     hline and double vline top:
+     +-------------+
+     +---+----++---+
+     |11 +----+|13 |
+     +---+----++---+
+     |21 | 22 | 23 |
+     +---+----+----+
+     +-------------+
+     hline, double vline, hline top:
+     +------------------+
+     +---+----++---+----+
+     |11 +----++---+ 13 |
+     +---+----++---+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     +------------------+
+     double vline top right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     double vline and hline top right:
+     +--------+
+     +---++---+
+     |11 ++---+
+     +---++---+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     hline and double vline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     hline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     hline top:
+     +-------------+
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     +-------------+
+     double hline top:
+     +------------------+
+     +---+----+----+----+
+     |11 +----+----+ 13 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     +------------------+
+     hline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +--------+
+     hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     vline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     hline and vline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     vline and hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     +-------------+
+     vline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     vline and hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 +----+ 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     hline and vline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 +----+ 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     double hline in the middle:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     +------------------+
+     hline, vline, hline in the middle:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 +----+----+ 34 |
+     +---+----+----+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     +------------------+
+     hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     vline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     vline and hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     hline and vline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     hline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     +--------+
+     vline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     hline and vline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     +--------+
+     vline and hline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     +--------+
+     double hline bottom:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----+----+----+
+     +------------------+
+     hline, vline, hline bottom:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 +----+----+ 34 |
+     +---+----+----+----+
+     +------------------+
+     hline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     +--------+
+     vline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     vline and hline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     +--------+
+     hline and vline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     +--------+
+     double vline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     hline and double vline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     +---+|32 |
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline and hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     double vline and hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ++---+ 33 |
+     +---++---+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     hline and doble vline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----++---+
+     |31 +----+|33 |
+     +---+----++---+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     hline, double vline, hline in the middle:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 +----++---+ 34 |
+     +---+----++---+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     +------------------+
+     double vline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline and hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ++---+
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     hline and double vline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     hline and double vline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     +---+|32 |
+     +---++---+
+     +--------+
+     double vline and hline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     +---+ 32 |
+     +---+----+
+     +--------+
+     hline, double vline, hline bottom:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 +----++---+ 34 |
+     +---+----++---+----+
+     +------------------+
+     double vline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     double vline and hline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ++---+
+     +---++---+
+     +--------+
+     hline and double vline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 +----+
+     +---+----+
+     +--------+
+     vline left below hline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     vline right below hline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     vline left below hline at the top:
+     +-------------+
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     +-------------+
+     vline right below hline at the top:
+     +-------------+
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     +-------------+
+     vline below hline at the top:
+     +------------------+
+     +---+----+----+----+
+     |11 +----+----+ 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     +------------------+
+     vline left below hline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     vline right below hline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     vline left below hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     vline left above hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     vline right below hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     vline right above hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     vline left below hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     vline left above hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     +-------------+
+     vline right below hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     vline right above hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     +-------------+
+     vline below hline in the middle:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     +------------------+
+     vline above hline in the middle:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     |41 +----+----+ 44 |
+     +---+----+----+----+
+     |51 | 52 | 53 | 54 |
+     +---+----+----+----+
+     +------------------+
+     vline left below hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     vline left above hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     vline right below hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     vline right above hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     vline left above hline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     +--------+
+     vline right above hline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     +--------+
+     vline left above hline at the bottom:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     +-------------+
+     vline right above hline at the bottom:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     |41 +----+ 43 |
+     +---+----+----+
+     +-------------+
+     vline above hline at the bottom:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----+----+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     |41 +----+----+ 44 |
+     +---+----+----+----+
+     +------------------+
+     vline left above hline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     +--------+
+     vline right above hline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     +--------+
+     double vline left below hline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     double vline right below hline top left:
+     +--------+
+     +---+----+
+     +---+ 12 |
+     +---++---+
+     |21 ||22 |
+     +---++---+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     double vline left below hline at the top:
+     +-------------+
+     +---+----+----+
+     |11 +----+ 13 |
+     +---++---+----+
+     |21 ||22 | 23 |
+     +---++---+----+
+     |31 | 32 | 33 |
+     +---+----+----+
+     +-------------+
+     double vline right below hline at the top:
+     +-------------+
+     +---+----+----+
+     |11 +----+ 13 |
+     +---+----++---+
+     |21 | 22 ||23 |
+     +---+----++---+
+     |31 | 32 | 33 |
+     +---+----+----+
+     +-------------+
+     double vline below hline at the top:
+     +------------------+
+     +---+----+----+----+
+     |11 +----+----+ 14 |
+     +---+----++---+----+
+     |21 | 22 ||23 | 24 |
+     +---+----++---+----+
+     |31 | 32 | 33 | 34 |
+     +---+----+----+----+
+     +------------------+
+     double vline left below hline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---++---+
+     |21 ||22 |
+     +---++---+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     double vline right below hline top right:
+     +--------+
+     +---+----+
+     |11 +----+
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +--------+
+     double vline left below hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline left above hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     double vline right below hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     +---+ 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline right above hline in front:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     +---+|42 |
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     double vline left below hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     double vline left above hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 ++---+ 43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     +-------------+
+     double vline right below hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 +----+ 23 |
+     +---+----++---+
+     |31 | 32 ||33 |
+     +---+----++---+
+     |41 | 42 | 43 |
+     +---+----+----+
+     +-------------+
+     double vline right above hline in the middle:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----++---+
+     |31 | 32 ||33 |
+     +---+----++---+
+     |41 +----+|43 |
+     +---+----+----+
+     |51 | 52 | 53 |
+     +---+----+----+
+     +-------------+
+     double vline below hline in the middle:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 +----+----+ 24 |
+     +---+----++---+----+
+     |31 | 32 ||33 | 34 |
+     +---+----++---+----+
+     |41 | 42 | 43 | 44 |
+     +---+----+----+----+
+     +------------------+
+     double vline above hline in the middle:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 | 32 ||33 | 34 |
+     +---+----++---+----+
+     |41 +----++---+ 44 |
+     +---+----+----+----+
+     |51 | 52 | 53 | 54 |
+     +---+----+----+----+
+     +------------------+
+     double vline left below hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline left above hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 ++---+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     double vline right below hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 +----+
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 | 42 |
+     +---+----+
+     +--------+
+     double vline right above hline at the end:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     |51 | 52 |
+     +---+----+
+     +--------+
+     double vline left above hline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     +---+ 42 |
+     +---+----+
+     +--------+
+     double vline right above hline bottom left:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     +---+|42 |
+     +---+----+
+     +--------+
+     double vline left above hline at the bottom:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---++---+----+
+     |31 ||32 | 33 |
+     +---++---+----+
+     |41 ++---+ 43 |
+     +---+----+----+
+     +-------------+
+     double vline right above hline at the bottom:
+     +-------------+
+     +---+----+----+
+     |11 | 12 | 13 |
+     +---+----+----+
+     |21 | 22 | 23 |
+     +---+----++---+
+     |31 | 32 ||33 |
+     +---+----++---+
+     |41 +----+|43 |
+     +---+----+----+
+     +-------------+
+     double vline above hline at the bottom:
+     +------------------+
+     +---+----+----+----+
+     |11 | 12 | 13 | 14 |
+     +---+----+----+----+
+     |21 | 22 | 23 | 24 |
+     +---+----++---+----+
+     |31 | 32 ||33 | 34 |
+     +---+----++---+----+
+     |41 +----++---+ 44 |
+     +---+----+----+----+
+     +------------------+
+     double vline left above hline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---++---+
+     |31 ||32 |
+     +---++---+
+     |41 ++---+
+     +---+----+
+     +--------+
+     double vline right above hline bottom right:
+     +--------+
+     +---+----+
+     |11 | 12 |
+     +---+----+
+     |21 | 22 |
+     +---+----+
+     |31 | 32 |
+     +---+----+
+     |41 +----+
+     +---+----+
+     +--------+
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/tbl/layout/numbers.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/numbers.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/numbers.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+.\" $OpenBSD: numbers.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-LAYOUT-NUMBERS 1 "January 29, 2017"
+.SH NAME
+tbl-layout-numbers \- alignment of numbers in tables
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+r || n | n .
+1:1.00:+42.0
+_
+10:-10.0:3.14
+.TE

Added: vendor/mandoc/dist/regress/tbl/layout/numbers.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/numbers.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/numbers.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+TBL-LAYOUT-NUMBERS(1)       General Commands Manual      TBL-LAYOUT-NUMBERS(1)
+
+
+
+NNAAMMEE
+       tbl-layout-numbers - alignment of numbers in tables
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +---++-------+--------+
+       | 1 ||  1.00 | +42.0  |
+       +---++-------+--------+
+       |10 ||-10.0  |   3.14 |
+       +---++-------+--------+
+
+
+OpenBSD                        January 29, 2017          TBL-LAYOUT-NUMBERS(1)

Added: vendor/mandoc/dist/regress/tbl/layout/span.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/span.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/span.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,55 @@
+.\" $OpenBSD: span.in,v 1.5 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-LAYOUT-SPAN 1 "June 17, 2017"
+.SH NAME
+tbl-layout-span \- alignment of spanned cells
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+L L L L
+L S L L
+L L S L
+L L L S.
+a:b:c:d
+s:c:d
+a:s:d
+a:b:s
+.TE
+.sp
+.TS
+box tab(:);
+C C C C
+C S C C
+C C S C
+C C C S.
+a:b:c:d
+s:c:d
+a:s:d
+a:b:s
+.TE
+.sp
+.TS
+box tab(:);
+R R R R
+R S R R
+R R S R
+R R R S.
+a:b:c:d
+s:c:d
+a:s:d
+a:b:s
+.TE
+.sp
+.TS
+allbox tab(:);
+L L L L L
+C S S C S
+R R R R R.
+a:b:c:d:e
+s1:s2
+a:b:c:d:e
+.TE
+.sp
+leaked tab settings:
+.br
+a	b	c	d	e	f

Added: vendor/mandoc/dist/regress/tbl/layout/span.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/layout/span.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/layout/span.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,44 @@
+TBL-LAYOUT-SPAN(1)          General Commands Manual         TBL-LAYOUT-SPAN(1)
+
+
+
+NNAAMMEE
+       tbl-layout-span - alignment of spanned cells
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +--------------+
+       |a   b   c   d |
+       |s       c   d |
+       |a   s       d |
+       |a   b   s     |
+       +--------------+
+
+       +--------------+
+       |a   b   c   d |
+       |  s     c   d |
+       |a     s     d |
+       |a   b     s   |
+       +--------------+
+
+       +--------------+
+       |a   b   c   d |
+       |    s   c   d |
+       |a       s   d |
+       |a   b       s |
+       +--------------+
+
+       +--+---+---+---+---+
+       |a | b | c | d | e |
+       +--+---+---+---+---+
+       |   s1     |  s2   |
+       +--+---+---+---+---+
+       |a | b | c | d | e |
+       +--+---+---+---+---+
+       leaked tab settings:
+       a b   c   d   e   f
+
+
+
+OpenBSD                          June 17, 2017              TBL-LAYOUT-SPAN(1)

Added: vendor/mandoc/dist/regress/tbl/macro/Makefile
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+# $OpenBSD: Makefile,v 1.2 2016/08/20 14:43:40 schwarze Exp $
+
+REGRESS_TARGETS	 = man nested column
+LINT_TARGETS	 = man nested
+
+# trivial differences to groff-1.22.3:
+# .TS in a table causes a blank table line in GNU tbl(1), but not in mandoc.
+# .TS in a column list causes a blank line in mandoc, but not in GNU tbl(1).
+
+SKIP_GROFF	 = nested column
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/tbl/macro/column.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/column.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/column.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: column.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.Dd $Mdocdate: July 4 2017 $
+.Dt TBL-COLUMN 1
+.Os
+.Sh NAME
+.Nm TBL-column
+.Nd tables inside column lists
+.Sh DESCRIPTION
+.Bl -column "a" "b"
+.Sy a Ta b
+.TS
+lll.
+1	2	3
+4	5	6
+.TE
+.Em c Ta d
+.El

Added: vendor/mandoc/dist/regress/tbl/macro/column.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/column.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/column.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+TBL-COLUMN(1)               General Commands Manual              TBL-COLUMN(1)
+
+NNAAMMEE
+     TTBBLL--ccoolluummnn - tables inside column lists
+
+DDEESSCCRRIIPPTTIIOONN
+     aa    b
+     1   2   3
+     4   5   6
+
+     _c    d
+
+OpenBSD                          July 4, 2017                          OpenBSD

Added: vendor/mandoc/dist/regress/tbl/macro/man.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/man.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/man.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: man.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MACRO-MAN 1 "December 16, 2014"
+.SH NAME
+tbl-macro-man \- man macro in a table
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+l | l .
+a:b:stray
+_
+c:T{
+.SM d
+T}
+.TE
+.PP
+normal text

Added: vendor/mandoc/dist/regress/tbl/macro/man.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/man.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/man.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+TBL-MACRO-MAN(1)            General Commands Manual           TBL-MACRO-MAN(1)
+
+
+
+NNAAMMEE
+       tbl-macro-man - man macro in a table
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +--+---+
+       |a | b |
+       +--+---+
+       |c | d |
+       +--+---+
+       normal text
+
+
+
+OpenBSD                        December 16, 2014              TBL-MACRO-MAN(1)

Added: vendor/mandoc/dist/regress/tbl/macro/man.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/man.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/man.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: man.in:10:5: ERROR: ignoring extra tbl data cells: stray
+mandoc: man.in:13:2: UNSUPP: ignoring macro in table: SM d

Added: vendor/mandoc/dist/regress/tbl/macro/nested.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/nested.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/nested.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: nested.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MACRO-NESTED 1 "December 16, 2014"
+.SH NAME
+tbl-macro-nested \- nested table
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+l | l .
+a:b
+_
+c:d
+.TS
+e:f
+.TE
+.PP
+normal text

Added: vendor/mandoc/dist/regress/tbl/macro/nested.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/nested.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/nested.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,21 @@
+TBL-MACRO-NESTED(1)         General Commands Manual        TBL-MACRO-NESTED(1)
+
+
+
+NNAAMMEE
+       tbl-macro-nested - nested table
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +--+---+
+       |a | b |
+       +--+---+
+       |c | d |
+       |e | f |
+       +--+---+
+       normal text
+
+
+
+OpenBSD                        December 16, 2014           TBL-MACRO-NESTED(1)

Added: vendor/mandoc/dist/regress/tbl/macro/nested.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/macro/nested.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/macro/nested.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1 @@
+mandoc: nested.in:13:4: UNSUPP: ignoring macro in table: TS

Added: vendor/mandoc/dist/regress/tbl/mod/Makefile
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+# $OpenBSD: Makefile,v 1.2 2015/02/10 11:02:19 schwarze Exp $
+
+REGRESS_TARGETS	 = badfont expand expand-toowide font misalign spacing width
+LINT_TARGETS	 = badfont font
+
+# groff-1.22.3 defects:
+# - The "f" font modifier swallows a following newline character.
+# - When space is insufficient (on either side) for properly aligning
+#   a number, GNU tbl(1) moves the number too much to the right,
+#   overflowing the column, even if space would be sufficient without
+#   left padding.
+
+SKIP_GROFF	 = badfont misalign
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/tbl/mod/badfont.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/badfont.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/badfont.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: badfont.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MOD-BADFONT 1 "February 10, 2015"
+.SH NAME
+tbl-mod-badfont \- invalid font modifiers in table layouts
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+lfB lf
+lfI lf.
+lfB lfI.
+bold:none
+italic:none
+bold:italic
+.TE

Added: vendor/mandoc/dist/regress/tbl/mod/badfont.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/badfont.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/badfont.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+TBL-MOD-BADFONT(1)          General Commands Manual         TBL-MOD-BADFONT(1)
+
+
+
+NNAAMMEE
+       tbl-mod-badfont - invalid font modifiers in table layouts
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +----------------+
+       |bboolldd     none   |
+       |_i_t_a_l_i_c   none   |
+       |bboolldd     _i_t_a_l_i_c |
+       +----------------+
+
+
+OpenBSD                        February 10, 2015            TBL-MOD-BADFONT(1)

Added: vendor/mandoc/dist/regress/tbl/mod/badfont.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/badfont.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/badfont.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2 @@
+mandoc: badfont.in:9:7: WARNING: unknown font, skipping request: TS f
+mandoc: badfont.in:10:7: WARNING: unknown font, skipping request: TS f.

Added: vendor/mandoc/dist/regress/tbl/mod/expand-toowide.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/expand-toowide.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/expand-toowide.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+.\" $OpenBSD: expand-toowide.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MOD-EXPAND-TOOWIDE 1 "May 1, 2017"
+.SH NAME
+tbl-mod-expand-toowide \- try to expand columns in a table
+that is already too wide
+.SH DESCRIPTION
+.ll 20n
+In this section, the line length is limited to 20 characters.
+.TS
+tab(:);
+lx l lx.
+x:1234567890:x
+.TE
+.ll 78n
+.PP
+Now we are back to the default terminal width.

Added: vendor/mandoc/dist/regress/tbl/mod/expand-toowide.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/expand-toowide.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/expand-toowide.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,23 @@
+TBL-MOD-EXPAND-TOOWIDE(1)   General Commands Manual  TBL-MOD-EXPAND-TOOWIDE(1)
+
+
+
+NNAAMMEE
+       tbl-mod-expand-toowide - try to expand columns in a table that is
+       already too wide
+
+DDEESSCCRRIIPPTTIIOONN
+       In this
+       section, the
+       line length
+       is limited to
+       20
+       characters.
+
+       x   1234567890   x
+
+       Now we are back to the default terminal width.
+
+
+
+OpenBSD                           May 1, 2017        TBL-MOD-EXPAND-TOOWIDE(1)

Added: vendor/mandoc/dist/regress/tbl/mod/expand.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/expand.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/expand.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,232 @@
+.\" $OpenBSD: expand.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MOD-EXPAND 1 "January 27, 2015"
+.SH NAME
+tbl-mod-expand \- expand modifier in table layout
+.SH DESCRIPTION
+normal text
+.TS
+tab(:);
+lx lx l.
+x:x:123456789012345678901234567890123456789012345678901234567890123
+.TE
+.TS
+tab(:);
+lx lx l.
+x:x:12345678901234567890123456789012345678901234567890123456789012
+.TE
+.TS
+tab(:);
+lx lx l.
+x:x:1234567890123456789012345678901234567890123456789012345678901
+.TE
+.TS
+tab(:);
+lx lx l.
+x:x:123456789012345678901234567890123456789012345678901234567890
+.TE
+.TS
+tab(:);
+lx lx lx l.
+x:x:x:12345678901234567890123456789012345678901234567890123456789
+.TE
+.TS
+tab(:);
+lx lx lx l.
+x:x:x:1234567890123456789012345678901234567890123456789012345678
+.TE
+.TS
+tab(:);
+lx lx lx l.
+x:x:x:123456789012345678901234567890123456789012345678901234567
+.TE
+.TS
+tab(:);
+lx lx lx l.
+x:x:x:12345678901234567890123456789012345678901234567890123456
+.TE
+.TS
+tab(:);
+lx lx lx lx l.
+x:x:x:x:1234567890123456789012345678901234567890123456789012345
+.TE
+.TS
+tab(:);
+lx lx lx lx l.
+x:x:x:x:123456789012345678901234567890123456789012345678901234
+.TE
+.TS
+tab(:);
+lx lx lx lx l.
+x:x:x:x:12345678901234567890123456789012345678901234567890123
+.TE
+.TS
+tab(:);
+lx lx lx lx l.
+x:x:x:x:1234567890123456789012345678901234567890123456789012
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l.
+x:x:x:x:x:123456789012345678901234567890123456789012345678901
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l.
+x:x:x:x:x:12345678901234567890123456789012345678901234567890
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l.
+x:x:x:x:x:1234567890123456789012345678901234567890123456789
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l.
+x:x:x:x:x:123456789012345678901234567890123456789012345678
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l.
+x:x:x:x:x:12345678901234567890123456789012345678901234567
+.TE
+.TS
+tab(:);
+lx lx lx lx lx lx l.
+x:x:x:x:x:x:1234567890123456789012345678901234567890123456
+.TE
+.TS
+tab(:);
+lx lx lx lx lx lx l.
+x:x:x:x:x:x:123456789012345678901234567890123456789012345
+.TE
+.TS
+tab(:);
+lx lx lx lx lx lx l.
+x:x:x:x:x:x:12345678901234567890123456789012345678901234
+.TE
+.TS
+tab(:);
+lx lx lx lx lx lx l.
+x:x:x:x:x:x:1234567890123456789012345678901234567890123
+.TE
+.TS
+tab(:);
+lx lx lx lx lx lx l.
+x:x:x:x:x:x:123456789012345678901234567890123456789012
+.TE
+.TS
+tab(:);
+lx l rx.
+x:123456789012345678901234567890123456789012345678901234567890123:x
+.TE
+.TS
+tab(:);
+lx l rx.
+x:12345678901234567890123456789012345678901234567890123456789012:x
+.TE
+.TS
+tab(:);
+lx l rx.
+x:1234567890123456789012345678901234567890123456789012345678901:x
+.TE
+.TS
+tab(:);
+lx l rx.
+x:123456789012345678901234567890123456789012345678901234567890:x
+.TE
+.TS
+tab(:);
+lx lx l rx.
+x:x:12345678901234567890123456789012345678901234567890123456789:x
+.TE
+.TS
+tab(:);
+lx lx l rx.
+x:x:1234567890123456789012345678901234567890123456789012345678:x
+.TE
+.TS
+tab(:);
+lx lx l rx.
+x:x:123456789012345678901234567890123456789012345678901234567:x
+.TE
+.TS
+tab(:);
+lx lx l rx.
+x:x:12345678901234567890123456789012345678901234567890123456:x
+.TE
+.TS
+tab(:);
+lx lx lx l rx.
+x:x:x:1234567890123456789012345678901234567890123456789012345:x
+.TE
+.TS
+tab(:);
+lx lx lx l rx.
+x:x:x:123456789012345678901234567890123456789012345678901234:x
+.TE
+.TS
+tab(:);
+lx lx lx l rx.
+x:x:x:12345678901234567890123456789012345678901234567890123:x
+.TE
+.TS
+tab(:);
+lx lx lx l rx.
+x:x:x:1234567890123456789012345678901234567890123456789012:x
+.TE
+.TS
+tab(:);
+lx lx lx lx l rx.
+x:x:x:x:123456789012345678901234567890123456789012345678901:x
+.TE
+.TS
+tab(:);
+lx lx lx lx l rx.
+x:x:x:x:12345678901234567890123456789012345678901234567890:x
+.TE
+.TS
+tab(:);
+lx lx lx lx l rx.
+x:x:x:x:1234567890123456789012345678901234567890123456789:x
+.TE
+.TS
+tab(:);
+lx lx lx lx l rx.
+x:x:x:x:123456789012345678901234567890123456789012345678:x
+.TE
+.TS
+tab(:);
+lx lx lx lx l rx.
+x:x:x:x:12345678901234567890123456789012345678901234567:x
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l rx.
+x:x:x:x:x:1234567890123456789012345678901234567890123456:x
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l rx.
+x:x:x:x:x:123456789012345678901234567890123456789012345:x
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l rx.
+x:x:x:x:x:12345678901234567890123456789012345678901234:x
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l rx.
+x:x:x:x:x:1234567890123456789012345678901234567890123:x
+.TE
+.TS
+tab(:);
+lx lx lx lx lx l rx.
+x:x:x:x:x:123456789012345678901234567890123456789012:x
+.TE
+.sp
+.nf
+leaked tab settings:
+.br
+a	b	c	d	e	f	g	h
+.fi

Added: vendor/mandoc/dist/regress/tbl/mod/expand.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/expand.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/expand.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,104 @@
+TBL-MOD-EXPAND(1)           General Commands Manual          TBL-MOD-EXPAND(1)
+
+
+
+NNAAMMEE
+       tbl-mod-expand - expand modifier in table layout
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       x   x   123456789012345678901234567890123456789012345678901234567890123
+
+       x   x    12345678901234567890123456789012345678901234567890123456789012
+
+       x    x    1234567890123456789012345678901234567890123456789012345678901
+
+       x    x     123456789012345678901234567890123456789012345678901234567890
+
+       x   x   x   12345678901234567890123456789012345678901234567890123456789
+
+       x   x    x   1234567890123456789012345678901234567890123456789012345678
+
+       x    x   x    123456789012345678901234567890123456789012345678901234567
+
+       x    x    x    12345678901234567890123456789012345678901234567890123456
+
+       x   x   x   x   1234567890123456789012345678901234567890123456789012345
+
+       x   x   x    x   123456789012345678901234567890123456789012345678901234
+
+       x   x    x   x    12345678901234567890123456789012345678901234567890123
+
+       x    x   x    x    1234567890123456789012345678901234567890123456789012
+
+       x   x   x   x   x   123456789012345678901234567890123456789012345678901
+
+       x   x   x   x    x   12345678901234567890123456789012345678901234567890
+
+       x   x    x   x   x    1234567890123456789012345678901234567890123456789
+
+       x    x   x    x   x    123456789012345678901234567890123456789012345678
+
+       x    x    x   x    x    12345678901234567890123456789012345678901234567
+
+       x   x   x   x    x   x   1234567890123456789012345678901234567890123456
+
+       x   x    x   x   x    x   123456789012345678901234567890123456789012345
+
+       x   x    x   x    x   x    12345678901234567890123456789012345678901234
+
+       x    x   x    x    x   x    1234567890123456789012345678901234567890123
+
+       x    x    x   x    x    x    123456789012345678901234567890123456789012
+
+       x   123456789012345678901234567890123456789012345678901234567890123   x
+
+       x   12345678901234567890123456789012345678901234567890123456789012    x
+
+       x    1234567890123456789012345678901234567890123456789012345678901    x
+
+       x    123456789012345678901234567890123456789012345678901234567890     x
+
+       x   x   12345678901234567890123456789012345678901234567890123456789   x
+
+       x   x    1234567890123456789012345678901234567890123456789012345678   x
+
+       x    x   123456789012345678901234567890123456789012345678901234567    x
+
+       x    x    12345678901234567890123456789012345678901234567890123456    x
+
+       x   x   x   1234567890123456789012345678901234567890123456789012345   x
+
+       x   x   x    123456789012345678901234567890123456789012345678901234   x
+
+       x   x    x   12345678901234567890123456789012345678901234567890123    x
+
+       x    x   x    1234567890123456789012345678901234567890123456789012    x
+
+       x   x   x   x   123456789012345678901234567890123456789012345678901   x
+
+       x   x   x   x    12345678901234567890123456789012345678901234567890   x
+
+       x   x    x   x   1234567890123456789012345678901234567890123456789    x
+
+       x    x   x    x   123456789012345678901234567890123456789012345678    x
+
+       x    x    x   x    12345678901234567890123456789012345678901234567    x
+
+       x   x   x   x    x   1234567890123456789012345678901234567890123456   x
+
+       x   x    x   x   x    123456789012345678901234567890123456789012345   x
+
+       x   x    x   x    x   12345678901234567890123456789012345678901234    x
+
+       x    x   x    x    x   1234567890123456789012345678901234567890123    x
+
+       x    x    x   x    x    123456789012345678901234567890123456789012    x
+
+       leaked tab settings:
+       a b    c   d    e    f                                            g    h
+
+
+
+OpenBSD                        January 27, 2015              TBL-MOD-EXPAND(1)

Added: vendor/mandoc/dist/regress/tbl/mod/font.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/font.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/font.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,19 @@
+.\" $OpenBSD: font.in,v 1.4 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MOD-FONT 1 "February 10, 2015"
+.SH NAME
+tbl-mod-font \- font modifiers in table layouts
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+cb|cfCW|ci
+cFI | cf(foobar) | cFB.
+bold:roman:italic
+_
+italic:roman:bold
+and:so:on
+.TE
+.sp
+leaked tab settings:
+.br
+a	b	c	d	e

Added: vendor/mandoc/dist/regress/tbl/mod/font.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/font.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/font.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+TBL-MOD-FONT(1)             General Commands Manual            TBL-MOD-FONT(1)
+
+
+
+NNAAMMEE
+       tbl-mod-font - font modifiers in table layouts
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +-------+-------+--------+
+       | bboolldd  | roman | _i_t_a_l_i_c |
+       +-------+-------+--------+
+       |_i_t_a_l_i_c | roman |  bboolldd  |
+       | _a_n_d   |  so   |   oonn   |
+       +-------+-------+--------+
+       leaked tab settings:
+       a      b       c        de
+
+
+
+OpenBSD                        February 10, 2015               TBL-MOD-FONT(1)

Added: vendor/mandoc/dist/regress/tbl/mod/font.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/font.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/font.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: font.in:9:6: WARNING: unknown font, skipping request: TS fCW|ci
+mandoc: font.in:19:2: WARNING: tab in filled text
+mandoc: font.in:19:4: WARNING: tab in filled text
+mandoc: font.in:19:6: WARNING: tab in filled text
+mandoc: font.in:19:8: WARNING: tab in filled text

Added: vendor/mandoc/dist/regress/tbl/mod/misalign.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/misalign.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/misalign.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+.\" $OpenBSD: misalign.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MOD-MISALIGN 1 "December 24, 2014"
+.SH NAME
+tbl-mod-misalign \- failing alignment in tables
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+n, nz.
+12.34
+_
+100.0
+0.001
+_
+1000.0
+0.0001
+.TE

Added: vendor/mandoc/dist/regress/tbl/mod/misalign.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/misalign.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/misalign.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,22 @@
+TBL-MOD-MISALIGN(1)         General Commands Manual        TBL-MOD-MISALIGN(1)
+
+
+
+NNAAMMEE
+       tbl-mod-misalign - failing alignment in tables
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +------+
+       |12.34 |
+       +------+
+       |100.0 |
+       |0.001 |
+       +------+
+       |1000.0 |
+       |0.0001 |
+       +------+
+
+
+OpenBSD                        December 24, 2014           TBL-MOD-MISALIGN(1)

Added: vendor/mandoc/dist/regress/tbl/mod/spacing.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/spacing.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/spacing.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: spacing.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MOD-SPACING 1 "June 27, 2017"
+.SH NAME
+tbl-mod-spacing \- spacing modifier in table layout
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+l0 l1 |  l2 |  l3 |  l4 |  l5 |  l6 |  l7 |  l8
+l0 l1    l2    l3    l4    l5    l6    l7    l8
+l0 l1 |  l2 || l3 || l4    l5 || l6 |  l7 || l8.
+a:b:c:d:e:f:g:h:i
+a:b:c:d:e:f:g:h:i
+a:b:c:d:e:f:g:h:i
+.TE

Added: vendor/mandoc/dist/regress/tbl/mod/spacing.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/spacing.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/spacing.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,18 @@
+TBL-MOD-SPACING(1)          General Commands Manual         TBL-MOD-SPACING(1)
+
+
+
+NNAAMMEE
+       tbl-mod-spacing - spacing modifier in table layout
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +--+--+--+----+----+------+------+-----+
+       |ab|c |d | e  | f  |  g   |  h   |   i |
+       |ab|c |d ||e    f  || g   |  h   ||  i |
+       |ab|c |d ||e    f  || g   |  h   ||  i |
+       +--+--+--++--------++-----+------++----+
+
+
+OpenBSD                          June 27, 2017              TBL-MOD-SPACING(1)

Added: vendor/mandoc/dist/regress/tbl/mod/width.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/width.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/width.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,15 @@
+.\" $OpenBSD: width.in,v 1.3 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-MOD-WIDTH 1 "June 8, 2017"
+.SH NAME
+tbl-mod-width \- width modifier in table layout
+.SH DESCRIPTION
+normal text
+.TS
+box tab(:);
+lw2 | lw(2n) | lw(0.16i) | lw2 .
+a:abcd:T{
+a
+T}:T{
+.SM abcd
+T}
+.TE

Added: vendor/mandoc/dist/regress/tbl/mod/width.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/mod/width.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/mod/width.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,16 @@
+TBL-MOD-WIDTH(1)            General Commands Manual           TBL-MOD-WIDTH(1)
+
+
+
+NNAAMMEE
+       tbl-mod-width - width modifier in table layout
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +---+------+----+------+
+       |a  | abcd | a  | abcd |
+       +---+------+----+------+
+
+
+OpenBSD                          June 8, 2017                 TBL-MOD-WIDTH(1)

Added: vendor/mandoc/dist/regress/tbl/opt/Makefile
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/Makefile	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/Makefile	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2015/01/29 23:24:24 schwarze Exp $
+
+REGRESS_TARGETS	 = box center invalid
+LINT_TARGETS	 = invalid
+
+.include <bsd.regress.mk>

Added: vendor/mandoc/dist/regress/tbl/opt/box.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/box.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/box.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,59 @@
+.\" $OpenBSD: box.in,v 1.4 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-OPT-BOX 1 "June 12, 2017"
+.SH NAME
+tbl-opt-box \- box table options
+.SH DESCRIPTION
+no boxing:
+.TS
+tab(:);
+l l.
+a:b
+c:d
+.TE
+.sp
+automatic boxing:
+.TS
+tab(:) box;
+l l.
+a:b
+c:d
+.TE
+.sp
+allbox:
+.TS
+tab(:) allbox;
+l l.
+a:b
+c:d
+.TE
+.sp
+manual boxing:
+.TS
+tab(:);
+||l||l||.
+_
+a:b
+_
+c:d
+_
+.TE
+.sp
+automatic and manual boxing:
+.TS
+tab(:) box;
+||l||l||.
+a:b
+_
+c:d
+_
+.TE
+.sp
+allbox and manual boxing:
+.TS
+tab(:) allbox;
+||l||l||.
+a:b
+_
+c:d
+_
+.TE

Added: vendor/mandoc/dist/regress/tbl/opt/box.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/box.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/box.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,54 @@
+TBL-OPT-BOX(1)              General Commands Manual             TBL-OPT-BOX(1)
+
+
+
+NNAAMMEE
+       tbl-opt-box - box table options
+
+DDEESSCCRRIIPPTTIIOONN
+       no boxing:
+
+       a   b
+       c   d
+
+       automatic boxing:
+
+       +------+
+       |a   b |
+       |c   d |
+       +------+
+       allbox:
+
+       +--+---+
+       |a | b |
+       +--+---+
+       |c | d |
+       +--+---+
+       manual boxing:
+
+       +--++--+
+       |a ||b |
+       +--++--+
+       |c ||d |
+       +--++--+
+
+       automatic and manual boxing:
+
+       +--++--+
+       |a ||b |
+       +--++--+
+       |c ||d |
+       +--++--+
+       +--++--+
+       allbox and manual boxing:
+
+       +--++--+
+       |a ||b |
+       +--++--+
+       +--++--+
+       |c ||d |
+       +--++--+
+       +--++--+
+
+
+OpenBSD                          June 12, 2017                  TBL-OPT-BOX(1)

Added: vendor/mandoc/dist/regress/tbl/opt/center.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/center.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/center.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,99 @@
+.\" $OpenBSD: center.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-LAYOUT_CENTER 1 "January 28, 2015"
+.SH NAME
+tbl-layout_center \- center a table as a whole
+.SH DESCRIPTION
+normal text
+.TS
+center; l.
+12345678901234567890123456789012345678901234567890123456789012345678901\
+234567890123456
+.TE
+.TS
+center; l.
+12345678901234567890123456789012345678901234567890123456789012345678901\
+23456789012345
+.TE
+.TS
+center; l.
+12345678901234567890123456789012345678901234567890123456789012345678901\
+2345678901234
+.TE
+.TS
+center; l.
+12345678901234567890123456789012345678901234567890123456789012345678901234
+.TE
+.TS
+center; l.
+1234567890123456789012345678901234567890123456789012345678901234567890123
+.TE
+.TS
+center; l.
+123456789012345678901234567890123456789012345678901234567890123456789012
+.TE
+.TS
+center; l.
+12345678901234567890123456789012345678901234567890123456789012345678901
+.TE
+.TS
+center; l.
+1234567890123456789012345678901234567890123456789012345678901234567890
+.TE
+.TS
+center; l.
+123456789012345678901234567890123456789012345678901234567890123456789
+.TE
+.TS
+center; l.
+12345678901234567890123456789012345678901234567890123456789012345678
+.TE
+.TS
+center; l|.
+_
+txt
+.TE
+.TS
+center; l|.
+_
+text
+.TE
+.TS
+center; |l.
+_
+txt
+.TE
+.TS
+center; |l.
+_
+text
+.TE
+.TS
+center; |l|.
+_
+txt
+.TE
+.TS
+center; |l|.
+_
+text
+.TE
+.TS
+center tab(:); |l||l|.
+_
+txt:text
+.TE
+.TS
+center tab(:); |l||l|.
+_
+text:text
+.TE
+.TS
+center box; l.
+txt
+.TE
+.PP
+normal text
+.TS
+center box; l.
+text
+.TE

Added: vendor/mandoc/dist/regress/tbl/opt/center.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/center.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/center.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,65 @@
+TBL-LAYOUT_CENTER(1)        General Commands Manual       TBL-LAYOUT_CENTER(1)
+
+
+
+NNAAMMEE
+       tbl-layout_center - center a table as a whole
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+12345678901234567890123456789012345678901234567890123456789012345678901234567890123456
+
+1234567890123456789012345678901234567890123456789012345678901234567890123456789012345
+
+ 123456789012345678901234567890123456789012345678901234567890123456789012345678901234
+
+      12345678901234567890123456789012345678901234567890123456789012345678901234
+
+      1234567890123456789012345678901234567890123456789012345678901234567890123
+
+       123456789012345678901234567890123456789012345678901234567890123456789012
+
+       12345678901234567890123456789012345678901234567890123456789012345678901
+
+       1234567890123456789012345678901234567890123456789012345678901234567890
+
+        123456789012345678901234567890123456789012345678901234567890123456789
+
+        12345678901234567890123456789012345678901234567890123456789012345678
+
+                                        ----+
+                                        txt |
+
+                                        -----+
+                                        text |
+
+                                        +----
+                                        |txt
+
+                                        +-----
+                                        |text
+
+                                        +----+
+                                        |txt |
+
+                                       +-----+
+                                       |text |
+
+                                    +----++-----+
+                                    |txt ||text |
+
+                                    +-----++-----+
+                                    |text ||text |
+
+                                        +----+
+                                        |txt |
+                                        +----+
+       normal text
+
+                                       +-----+
+                                       |text |
+                                       +-----+
+
+
+OpenBSD                        January 28, 2015           TBL-LAYOUT_CENTER(1)

Added: vendor/mandoc/dist/regress/tbl/opt/invalid.in
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/invalid.in	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/invalid.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,20 @@
+.\" $OpenBSD: invalid.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $
+.TH TBL-OPT 1 "January 25, 2015"
+.SH NAME
+tbl-opt \- table options
+.SH DESCRIPTION
+normal text
+.TS
+tab decimalpoint (,x) %foo box;
+n n .
+10.0	0.01
+0.01	10.0
+.TE
+.PP
+normal text
+.TS
+ , box,tab(:)	delim($$); l l .
+a:b
+.TE
+.PP
+normal text

Added: vendor/mandoc/dist/regress/tbl/opt/invalid.out_ascii
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/invalid.out_ascii	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/invalid.out_ascii	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,24 @@
+TBL-OPT(1)                  General Commands Manual                 TBL-OPT(1)
+
+
+
+NNAAMMEE
+       tbl-opt - table options
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       +--------------+
+       |10.0     0.01 |
+       | 0.01   10.0  |
+       +--------------+
+       normal text
+
+       +------+
+       |a   b |
+       +------+
+       normal text
+
+
+
+OpenBSD                        January 25, 2015                     TBL-OPT(1)

Added: vendor/mandoc/dist/regress/tbl/opt/invalid.out_lint
===================================================================
--- vendor/mandoc/dist/regress/tbl/opt/invalid.out_lint	                        (rev 0)
+++ vendor/mandoc/dist/regress/tbl/opt/invalid.out_lint	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,5 @@
+mandoc: invalid.in:8:5: ERROR: missing tbl option argument: tab
+mandoc: invalid.in:8:19: ERROR: wrong tbl option argument size: decimalpoint want 1 have 2
+mandoc: invalid.in:8:23: ERROR: non-alphabetic character in tbl options: %
+mandoc: invalid.in:8:24: ERROR: skipping unknown tbl option: foo
+mandoc: invalid.in:16:21: UNSUPP: eqn delim option in tbl: $$

Added: vendor/mandoc/dist/roff.7
===================================================================
--- vendor/mandoc/dist/roff.7	                        (rev 0)
+++ vendor/mandoc/dist/roff.7	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,2188 @@
+.\"	$Id: roff.7,v 1.94 2017/07/05 12:25:17 schwarze Exp $
+.\"
+.\" Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2010,2011,2013-2015,2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 5 2017 $
+.Dt ROFF 7
+.Os
+.Sh NAME
+.Nm roff
+.Nd roff language reference for mandoc
+.Sh DESCRIPTION
+The
+.Nm roff
+language is a general purpose text formatting language.
+Since traditional implementations of the
+.Xr mdoc 7
+and
+.Xr man 7
+manual formatting languages are based on it,
+many real-world manuals use small numbers of
+.Nm
+requests and escape sequences intermixed with their
+.Xr mdoc 7
+or
+.Xr man 7
+code.
+To properly format such manuals, the
+.Xr mandoc 1
+utility supports a tiny subset of
+.Nm
+requests and escapes.
+Only these requests and escapes supported by
+.Xr mandoc 1
+are documented in the present manual,
+together with the basic language syntax shared by
+.Nm ,
+.Xr mdoc 7 ,
+and
+.Xr man 7 .
+For complete
+.Nm
+manuals, consult the
+.Sx SEE ALSO
+section.
+.Pp
+Input lines beginning with the control character
+.Sq \&.
+are parsed for requests and macros.
+Such lines are called
+.Dq request lines
+or
+.Dq macro lines ,
+respectively.
+Requests change the processing state and manipulate the formatting;
+some macros also define the document structure and produce formatted
+output.
+The single quote
+.Pq Qq \(aq
+is accepted as an alternative control character,
+treated by
+.Xr mandoc 1
+just like
+.Ql \&.
+.Pp
+Lines not beginning with control characters are called
+.Dq text lines .
+They provide free-form text to be printed; the formatting of the text
+depends on the respective processing context.
+.Sh LANGUAGE SYNTAX
+.Nm
+documents may contain only graphable 7-bit ASCII characters, the space
+character, and, in certain circumstances, the tab character.
+The backslash character
+.Sq \e
+indicates the start of an escape sequence, used for example for
+.Sx Comments ,
+.Sx Special Characters ,
+.Sx Predefined Strings ,
+and
+user-defined strings defined using the
+.Sx ds
+request.
+For a listing of escape sequences, consult the
+.Sx ESCAPE SEQUENCE REFERENCE
+below.
+.Ss Comments
+Text following an escaped double-quote
+.Sq \e\(dq ,
+whether in a request, macro, or text line, is ignored to the end of the line.
+A request line beginning with a control character and comment escape
+.Sq \&.\e\(dq
+is also ignored.
+Furthermore, request lines with only a control character and optional
+trailing whitespace are stripped from input.
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+\&.\e\(dq This is a comment line.
+\&.\e\(dq The next line is ignored:
+\&.
+\&.Sh EXAMPLES \e\(dq This is a comment, too.
+\&example text \e\(dq And so is this.
+.Ed
+.Ss Special Characters
+Special characters are used to encode special glyphs and are rendered
+differently across output media.
+They may occur in request, macro, and text lines.
+Sequences begin with the escape character
+.Sq \e
+followed by either an open-parenthesis
+.Sq \&(
+for two-character sequences; an open-bracket
+.Sq \&[
+for n-character sequences (terminated at a close-bracket
+.Sq \&] ) ;
+or a single one character sequence.
+.Pp
+Examples:
+.Bl -tag -width Ds -offset indent -compact
+.It Li \e(em
+Two-letter em dash escape.
+.It Li \ee
+One-letter backslash escape.
+.El
+.Pp
+See
+.Xr mandoc_char 7
+for a complete list.
+.Ss Text Decoration
+Terms may be text-decorated using the
+.Sq \ef
+escape followed by an indicator: B (bold), I (italic), R (regular), or P
+(revert to previous mode).
+A numerical representation 3, 2, or 1 (bold, italic, and regular,
+respectively) may be used instead.
+The indicator or numerical representative may be preceded by C
+(constant-width), which is ignored.
+.Pp
+The two-character indicator
+.Sq BI
+requests a font that is both bold and italic.
+It may not be portable to old roff implementations.
+.Pp
+Examples:
+.Bl -tag -width Ds -offset indent -compact
+.It Li \efBbold\efR
+Write in \fBbold\fP, then switch to regular font mode.
+.It Li \efIitalic\efP
+Write in \fIitalic\fP, then return to previous font mode.
+.It Li \ef(BIbold italic\efP
+Write in \f(BIbold italic\fP, then return to previous font mode.
+.El
+.Pp
+Text decoration is
+.Em not
+recommended for
+.Xr mdoc 7 ,
+which encourages semantic annotation.
+.Ss Predefined Strings
+Predefined strings, like
+.Sx Special Characters ,
+mark special output glyphs.
+Predefined strings are escaped with the slash-asterisk,
+.Sq \e* :
+single-character
+.Sq \e*X ,
+two-character
+.Sq \e*(XX ,
+and N-character
+.Sq \e* Ns Bq N .
+.Pp
+Examples:
+.Bl -tag -width Ds -offset indent -compact
+.It Li \e*(Am
+Two-letter ampersand predefined string.
+.It Li \e*q
+One-letter double-quote predefined string.
+.El
+.Pp
+Predefined strings are not recommended for use,
+as they differ across implementations.
+Those supported by
+.Xr mandoc 1
+are listed in
+.Xr mandoc_char 7 .
+Manuals using these predefined strings are almost certainly not portable.
+.Ss Whitespace
+Whitespace consists of the space character.
+In text lines, whitespace is preserved within a line.
+In request and macro lines, whitespace delimits arguments and is discarded.
+.Pp
+Unescaped trailing spaces are stripped from text line input unless in a
+literal context.
+In general, trailing whitespace on any input line is discouraged for
+reasons of portability.
+In the rare case that a blank character is needed at the end of an
+input line, it may be forced by
+.Sq \e\ \e& .
+.Pp
+Literal space characters can be produced in the output
+using escape sequences.
+In macro lines, they can also be included in arguments using quotation; see
+.Sx MACRO SYNTAX
+for details.
+.Pp
+Blank text lines, which may include whitespace, are only permitted
+within literal contexts.
+If the first character of a text line is a space, that line is printed
+with a leading newline.
+.Ss Scaling Widths
+Many requests and macros support scaled widths for their arguments.
+The syntax for a scaled width is
+.Sq Li [+-]?[0-9]*.[0-9]*[:unit:] ,
+where a decimal must be preceded or followed by at least one digit.
+Negative numbers, while accepted, are truncated to zero.
+.Pp
+The following scaling units are accepted:
+.Pp
+.Bl -tag -width Ds -offset indent -compact
+.It c
+centimetre
+.It i
+inch
+.It P
+pica (~1/6 inch)
+.It p
+point (~1/72 inch)
+.It f
+scale
+.Sq u
+by 65536
+.It v
+default vertical span
+.It m
+width of rendered
+.Sq m
+.Pq em
+character
+.It n
+width of rendered
+.Sq n
+.Pq en
+character
+.It u
+default horizontal span for the terminal
+.It M
+mini-em (~1/100 em)
+.El
+.Pp
+Using anything other than
+.Sq m ,
+.Sq n ,
+or
+.Sq v
+is necessarily non-portable across output media.
+See
+.Sx COMPATIBILITY .
+.Pp
+If a scaling unit is not provided, the numerical value is interpreted
+under the default rules of
+.Sq v
+for vertical spaces and
+.Sq u
+for horizontal ones.
+.Pp
+Examples:
+.Bl -tag -width ".Bl -tag -width 2i" -offset indent -compact
+.It Li \&.Bl -tag -width 2i
+two-inch tagged list indentation in
+.Xr mdoc 7
+.It Li \&.HP 2i
+two-inch tagged list indentation in
+.Xr man 7
+.It Li \&.sp 2v
+two vertical spaces
+.El
+.Ss Sentence Spacing
+Each sentence should terminate at the end of an input line.
+By doing this, a formatter will be able to apply the proper amount of
+spacing after the end of sentence (unescaped) period, exclamation mark,
+or question mark followed by zero or more non-sentence closing
+delimiters
+.Po
+.Sq \&) ,
+.Sq \&] ,
+.Sq \&' ,
+.Sq \&"
+.Pc .
+.Pp
+The proper spacing is also intelligently preserved if a sentence ends at
+the boundary of a macro line.
+.Pp
+Examples:
+.Bd -literal -offset indent -compact
+Do not end sentences mid-line like this.  Instead,
+end a sentence like this.
+A macro would end like this:
+\&.Xr mandoc 1 \&.
+.Ed
+.Sh REQUEST SYNTAX
+A request or macro line consists of:
+.Pp
+.Bl -enum -compact
+.It
+the control character
+.Sq \&.
+or
+.Sq \(aq
+at the beginning of the line,
+.It
+optionally an arbitrary amount of whitespace,
+.It
+the name of the request or the macro, which is one word of arbitrary
+length, terminated by whitespace,
+.It
+and zero or more arguments delimited by whitespace.
+.El
+.Pp
+Thus, the following request lines are all equivalent:
+.Bd -literal -offset indent
+\&.ig end
+\&.ig    end
+\&.   ig end
+.Ed
+.Sh MACRO SYNTAX
+Macros are provided by the
+.Xr mdoc 7
+and
+.Xr man 7
+languages and can be defined by the
+.Sx \&de
+request.
+When called, they follow the same syntax as requests, except that
+macro arguments may optionally be quoted by enclosing them
+in double quote characters
+.Pq Sq \(dq .
+Quoted text, even if it contains whitespace or would cause
+a macro invocation when unquoted, is always considered literal text.
+Inside quoted text, pairs of double quote characters
+.Pq Sq Qq
+resolve to single double quote characters.
+.Pp
+To be recognised as the beginning of a quoted argument, the opening
+quote character must be preceded by a space character.
+A quoted argument extends to the next double quote character that is not
+part of a pair, or to the end of the input line, whichever comes earlier.
+Leaving out the terminating double quote character at the end of the line
+is discouraged.
+For clarity, if more arguments follow on the same input line,
+it is recommended to follow the terminating double quote character
+by a space character; in case the next character after the terminating
+double quote character is anything else, it is regarded as the beginning
+of the next, unquoted argument.
+.Pp
+Both in quoted and unquoted arguments, pairs of backslashes
+.Pq Sq \e\e
+resolve to single backslashes.
+In unquoted arguments, space characters can alternatively be included
+by preceding them with a backslash
+.Pq Sq \e\~ ,
+but quoting is usually better for clarity.
+.Pp
+Examples:
+.Bl -tag -width Ds -offset indent -compact
+.It Li .Fn strlen \(dqconst char *s\(dq
+Group arguments
+.Qq const char *s
+into one function argument.
+If unspecified,
+.Qq const ,
+.Qq char ,
+and
+.Qq *s
+would be considered separate arguments.
+.It Li .Op \(dqFl a\(dq
+Consider
+.Qq \&Fl a
+as literal text instead of a flag macro.
+.El
+.Sh REQUEST REFERENCE
+The
+.Xr mandoc 1
+.Nm
+parser recognises the following requests.
+For requests marked as "ignored" or "unsupported", any arguments are
+ignored, and the number of arguments is not checked.
+.Bl -tag -width Ds
+.It Ic \&ab Op Ar message
+Abort processing.
+Currently unsupported.
+.It Ic \&ad Op Cm b | c | l | n | r
+Set line adjustment mode for subsequent text.
+Currently ignored.
+.It Ic \&af Ar registername format
+Assign an output format to a number register.
+Currently ignored.
+.It Ic \&aln Ar newname oldname
+Create an alias for a number register.
+Currently unsupported.
+.It Ic \&als Ar newname oldname
+Create an alias for a request, string, macro, or diversion.
+.It Ic \&am Ar macroname Op Ar endmacro
+Append to a macro definition.
+The syntax of this request is the same as that of
+.Ic \&de .
+.It Ic \&am1 Ar macroname Op Ar endmacro
+Append to a macro definition, switching roff compatibility mode off
+during macro execution (groff extension).
+The syntax of this request is the same as that of
+.Ic \&de1 .
+Since
+.Xr mandoc 1
+does not implement
+.Nm
+compatibility mode at all, it handles this request as an alias for
+.Ic \&am .
+.It Ic \&ami Ar macrostring Op Ar endstring
+Append to a macro definition, specifying the macro name indirectly
+(groff extension).
+The syntax of this request is the same as that of
+.Ic \&dei .
+.It Ic \&ami1 Ar macrostring Op Ar endstring
+Append to a macro definition, specifying the macro name indirectly
+and switching roff compatibility mode off during macro execution
+(groff extension).
+The syntax of this request is the same as that of
+.Ic \&dei1 .
+Since
+.Xr mandoc 1
+does not implement
+.Nm
+compatibility mode at all, it handles this request as an alias for
+.Ic \&ami .
+.It Ic \&as Ar stringname Op Ar string
+Append to a user-defined string.
+The syntax of this request is the same as that of
+.Sx \&ds .
+If a user-defined string with the specified name does not yet exist,
+it is set to the empty string before appending.
+.It Ic \&as1 Ar stringname Op Ar string
+Append to a user-defined string, switching roff compatibility mode off
+during macro execution (groff extension).
+The syntax of this request is the same as that of
+.Ic \&ds1 .
+Since
+.Xr mandoc 1
+does not implement
+.Nm
+compatibility mode at all, it handles this request as an alias for
+.Ic \&as .
+.It Ic \&asciify Ar divname
+Fully unformat a diversion.
+Currently unsupported.
+.It Ic \&backtrace
+Print a backtrace of the input stack.
+This is a groff extension and currently ignored.
+.It Ic \&bd Ar font Oo Ar curfont Oc Op Ar offset
+Artificially embolden by repeated printing with small shifts.
+Currently ignored.
+.It Ic \&bleedat Ar left top width height
+Set the BleedBox page parameter for PDF generation.
+This is a Heirloom extension and currently ignored.
+.It Ic \&blm Ar macroname
+Set a blank line trap.
+Currently unsupported.
+.It Ic \&box Ar divname
+Begin a diversion without including a partially filled line.
+Currently unsupported.
+.It Ic \&boxa Ar divname
+Add to a diversion without including a partially filled line.
+Currently unsupported.
+.It Ic \&bp Oo Cm + Ns | Ns Cm - Oc Ns Ar pagenumber
+Begin a new page.
+Currently ignored.
+.It Ic \&BP Ar source height width position offset flags label
+Define a frame and place a picture in it.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&br
+Break the output line.
+.It Ic \&break
+Break out of a
+.Ic \&while
+loop.
+Currently unsupported.
+.It Ic \&breakchar Ar char ...
+Optional line break characters.
+This is a Heirloom extension and currently ignored.
+.It Ic \&brnl Ar N
+Break output line after the next
+.Ar N
+input lines.
+This is a Heirloom extension and currently ignored.
+.It Ic \&brp
+Break and spread output line.
+Currently, this is implemented as an alias for
+.Ic \&br .
+.It Ic \&brpnl Ar N
+Break and spread output line after the next
+.Ar N
+input lines.
+This is a Heirloom extension and currently ignored.
+.It Ic \&c2 Op Ar char
+Change the no-break control character.
+Currently unsupported.
+.It Ic \&cc Op Ar char
+Change the control character.
+If
+.Ar char
+is not specified, the control character is reset to
+.Sq \&. .
+Trailing characters are ignored.
+.It Ic \&ce Op Ar N
+Center the next
+.Ar N
+input lines without filling.
+.Ar N
+defaults to 1.
+An argument of 0 or less ends centering.
+Currently, high level macros abort centering.
+.It Ic \&cf Ar filename
+Output the contents of a file.
+Ignored because insecure.
+.It Ic \&cflags Ar flags char ...
+Set character flags.
+This is a groff extension and currently ignored.
+.It Ic \&ch Ar macroname Op Ar dist
+Change a trap location.
+Currently ignored.
+.It Ic \&char Ar glyphname Op Ar string
+Define a new glyph.
+Currently unsupported.
+.It Ic \&chop Ar stringname
+Remove the last character from a macro, string, or diversion.
+Currently unsupported.
+.It Ic \&class Ar classname char ...
+Define a character class.
+This is a groff extension and currently ignored.
+.It Ic \&close Ar streamname
+Close an open file.
+Ignored because insecure.
+.It Ic \&CL Ar color text
+Print text in color.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&color Op Cm 1 | 0
+Activate or deactivate colors.
+This is a groff extension and currently ignored.
+.It Ic \&composite Ar from to
+Define a name component for composite glyph names.
+This is a groff extension and currently unsupported.
+.It Ic \&continue
+Immediately start the next iteration of a
+.Ic \&while
+loop.
+Currently unsupported.
+.It Ic \&cp Op Cm 1 | 0
+Switch
+.Nm
+compatibility mode on or off.
+Currently ignored.
+.It Ic \&cropat Ar left top width height
+Set the CropBox page parameter for PDF generation.
+This is a Heirloom extension and currently ignored.
+.It Ic \&cs Ar font Op Ar width Op Ar emsize
+Constant character spacing mode.
+Currently ignored.
+.It Ic \&cu Op Ar N
+Underline next
+.Ar N
+input lines including whitespace.
+Currently ignored.
+.It Ic \&da Ar divname
+Append to a diversion.
+Currently unsupported.
+.It Ic \&dch Ar macroname Op Ar dist
+Change a trap location in the current diversion.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&de Ar macroname Op Ar endmacro
+Define a
+.Nm
+macro.
+Its syntax can be either
+.Bd -literal -offset indent
+.Pf . Ic \&de Ar macroname
+.Ar definition
+\&..
+.Ed
+.Pp
+or
+.Bd -literal -offset indent
+.Pf . Ic \&de Ar macroname Ar endmacro
+.Ar definition
+.Pf . Ar endmacro
+.Ed
+.Pp
+Both forms define or redefine the macro
+.Ar macroname
+to represent the
+.Ar definition ,
+which may consist of one or more input lines, including the newline
+characters terminating each line, optionally containing calls to
+.Nm
+requests,
+.Nm
+macros or high-level macros like
+.Xr man 7
+or
+.Xr mdoc 7
+macros, whichever applies to the document in question.
+.Pp
+Specifying a custom
+.Ar endmacro
+macro works in the same way as for
+.Ic \&ig ;
+namely, the call to
+.Sq Pf . Ar endmacro
+first ends the
+.Ar definition ,
+and after that, it is also evaluated as a
+.Nm
+request or
+.Nm
+macro, but not as a high-level macro.
+.Pp
+The macro can be invoked later using the syntax
+.Pp
+.D1 Pf . Ar macroname Op Ar argument Op Ar argument ...
+.Pp
+Regarding argument parsing, see
+.Sx MACRO SYNTAX
+above.
+.Pp
+The line invoking the macro will be replaced
+in the input stream by the
+.Ar definition ,
+replacing all occurrences of
+.No \e\e$ Ns Ar N ,
+where
+.Ar N
+is a digit, by the
+.Ar N Ns th Ar argument .
+For example,
+.Bd -literal -offset indent
+\&.de ZN
+\efI\e^\e\e$1\e^\efP\e\e$2
+\&..
+\&.ZN XtFree .
+.Ed
+.Pp
+produces
+.Pp
+.D1 \efI\e^XtFree\e^\efP.
+.Pp
+in the input stream, and thus in the output: \fI\^XtFree\^\fP.
+Each occurrence of \e\e$* is replaced with all the arguments,
+joined together with single blank characters.
+.Pp
+Since macros and user-defined strings share a common string table,
+defining a macro
+.Ar macroname
+clobbers the user-defined string
+.Ar macroname ,
+and the
+.Ar definition
+can also be printed using the
+.Sq \e*
+string interpolation syntax described below
+.Ic ds ,
+but this is rarely useful because every macro definition contains at least
+one explicit newline character.
+.Pp
+In order to prevent endless recursion, both groff and
+.Xr mandoc 1
+limit the stack depth for expanding macros and strings
+to a large, but finite number, and
+.Xr mandoc 1
+also limits the length of the expanded input line.
+Do not rely on the exact values of these limits.
+.It Ic \&de1 Ar macroname Op Ar endmacro
+Define a
+.Nm
+macro that will be executed with
+.Nm
+compatibility mode switched off during macro execution.
+This is a groff extension.
+Since
+.Xr mandoc 1
+does not implement
+.Nm
+compatibility mode at all, it handles this request as an alias for
+.Ic \&de .
+.It Ic \&defcolor Ar newname scheme component ...
+Define a color name.
+This is a groff extension and currently ignored.
+.It Ic \&dei Ar macrostring Op Ar endstring
+Define a
+.Nm
+macro, specifying the macro name indirectly (groff extension).
+The syntax of this request is the same as that of
+.Ic \&de .
+The effect is the same as:
+.Pp
+.D1 Pf . Cm \&de No \e* Ns Bo Ar macrostring Bc Op \e* Ns Bq Ar endstring
+.It Ic \&dei1 Ar macrostring Op Ar endstring
+Define a
+.Nm
+macro that will be executed with
+.Nm
+compatibility mode switched off during macro execution,
+specifying the macro name indirectly (groff extension).
+Since
+.Xr mandoc 1
+does not implement
+.Nm
+compatibility mode at all, it handles this request as an alias for
+.Ic \&dei .
+.It Ic \&device Ar string ...
+.It Ic \&devicem Ar stringname
+These two requests only make sense with the groff-specific intermediate
+output format and are unsupported.
+.It Ic \&di Ar divname
+Begin a diversion.
+Currently unsupported.
+.It Ic \&do Ar command Op Ar argument ...
+Execute
+.Nm
+request or macro line with compatibility mode disabled.
+Currently unsupported.
+.It Ic \&ds Ar stringname Op Oo \(dq Oc Ns Ar string
+Define a user-defined string.
+The
+.Ar stringname
+and
+.Ar string
+arguments are space-separated.
+If the
+.Ar string
+begins with a double-quote character, that character will not be part
+of the string.
+All remaining characters on the input line form the
+.Ar string ,
+including whitespace and double-quote characters, even trailing ones.
+.Pp
+The
+.Ar string
+can be interpolated into subsequent text by using
+.No \e* Ns Bq Ar stringname
+for a
+.Ar stringname
+of arbitrary length, or \e*(NN or \e*N if the length of
+.Ar stringname
+is two or one characters, respectively.
+Interpolation can be prevented by escaping the leading backslash;
+that is, an asterisk preceded by an even number of backslashes
+does not trigger string interpolation.
+.Pp
+Since user-defined strings and macros share a common string table,
+defining a string
+.Ar stringname
+clobbers the macro
+.Ar stringname ,
+and the
+.Ar stringname
+used for defining a string can also be invoked as a macro,
+in which case the following input line will be appended to the
+.Ar string ,
+forming a new input line passed to the
+.Nm
+parser.
+For example,
+.Bd -literal -offset indent
+\&.ds badidea .S
+\&.badidea
+H SYNOPSIS
+.Ed
+.Pp
+invokes the
+.Ic SH
+macro when used in a
+.Xr man 7
+document.
+Such abuse is of course strongly discouraged.
+.It Ic \&ds1 Ar stringname Op Oo \(dq Oc Ns Ar string
+Define a user-defined string that will be expanded with
+.Nm
+compatibility mode switched off during string expansion.
+This is a groff extension.
+Since
+.Xr mandoc 1
+does not implement
+.Nm
+compatibility mode at all, it handles this request as an alias for
+.Ic \&ds .
+.It Ic \&dwh Ar dist macroname
+Set a location trap in the current diversion.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&dt Op Ar dist macroname
+Set a trap within a diversion.
+Currently unsupported.
+.It Ic \&ec Op Ar char
+Enable the escape mechanism and change the escape character.
+The
+.Ar char
+argument defaults to the backslash
+.Pq Sq \e .
+.It Ic \&ecr
+Restore the escape character.
+Currently unsupported.
+.It Ic \&ecs
+Save the escape character.
+Currently unsupported.
+.It Ic \&el Ar body
+The
+.Dq else
+half of an if/else conditional.
+Pops a result off the stack of conditional evaluations pushed by
+.Ic \&ie
+and uses it as its conditional.
+If no stack entries are present (e.g., due to no prior
+.Ic \&ie
+calls)
+then false is assumed.
+The syntax of this request is similar to
+.Ic \&if
+except that the conditional is missing.
+.It Ic \&em Ar macroname
+Set a trap at the end of input.
+Currently unsupported.
+.It Ic \&EN
+End an equation block.
+See
+.Ic \&EQ .
+.It Ic \&eo
+Disable the escape mechanism completely.
+.It Ic \&EP
+End a picture started by
+.Ic \&BP .
+This is a Heirloom extension and currently unsupported.
+.It Ic \&EQ
+Begin an equation block.
+See
+.Xr eqn 7
+for a description of the equation language.
+.It Ic \&errprint Ar message
+Print a string like an error message.
+This is a Heirloom extension and currently ignored.
+.It Ic \&ev Op Ar envname
+Switch to another environment.
+Currently unsupported.
+.It Ic \&evc Op Ar envname
+Copy an environment into the current environment.
+Currently unsupported.
+.It Ic \&ex
+Abort processing and exit.
+Currently unsupported.
+.It Ic \&fallback Ar curfont font ...
+Select the fallback sequence for a font.
+This is a Heirloom extension and currently ignored.
+.It Ic \&fam Op Ar familyname
+Change the font family.
+This is a groff extension and currently ignored.
+.It Ic \&fc Op Ar delimchar Op Ar padchar
+Define a delimiting and a padding character for fields.
+Currently unsupported.
+.It Ic \&fchar Ar glyphname Op Ar string
+Define a fallback glyph.
+Currently unsupported.
+.It Ic \&fcolor Ar colorname
+Set the fill color for \eD objects.
+This is a groff extension and currently ignored.
+.It Ic \&fdeferlig Ar font string ...
+Defer ligature building.
+This is a Heirloom extension and currently ignored.
+.It Ic \&feature Cm + Ns | Ns Cm - Ns Ar name
+Enable or disable an OpenType feature.
+This is a Heirloom extension and currently ignored.
+.It Ic \&fi
+Switch to fill mode.
+See
+.Xr man 7 .
+Ignored in
+.Xr mdoc 7 .
+.It Ic \&fkern Ar font minkern
+Control the use of kerning tables for a font.
+This is a Heirloom extension and currently ignored.
+.It Ic \&fl
+Flush output.
+Currently ignored.
+.It Ic \&flig Ar font string char ...
+Define ligatures.
+This is a Heirloom extension and currently ignored.
+.It Ic \&fp Ar position font Op Ar filename
+Assign font position.
+Currently ignored.
+.It Ic \&fps Ar mapname ...
+Mount a font with a special character map.
+This is a Heirloom extension and currently ignored.
+.It Ic \&fschar Ar font glyphname Op Ar string
+Define a font-specific fallback glyph.
+This is a groff extension and currently unsupported.
+.It Ic \&fspacewidth Ar font Op Ar afmunits
+Set a font-specific width for the space character.
+This is a Heirloom extension and currently ignored.
+.It Ic \&fspecial Ar curfont Op Ar font ...
+Conditionally define a special font.
+This is a groff extension and currently ignored.
+.It Ic \&ft Op Ar font
+Change the font.
+The following
+.Ar font
+arguments are supported:
+.Bl -tag -width 4n -offset indent
+.It Cm B , BI , 3 , 4
+switches to
+.Sy bold
+font
+.It Cm I , 2
+switches to
+.Em underlined
+font
+.It Cm R , CW , 1
+switches to normal font
+.It Cm P No "or no argument"
+switches back to the previous font
+.El
+.Pp
+This request takes effect only locally and may be overridden
+by macros and escape sequences.
+.It Ic \&ftr Ar newname Op Ar oldname
+Translate font name.
+This is a groff extension and currently ignored.
+.It Ic \&fzoom Ar font Op Ar permille
+Zoom font size.
+Currently ignored.
+.It Ic \&gcolor Op Ar colorname
+Set glyph color.
+This is a groff extension and currently ignored.
+.It Ic \&hc Op Ar char
+Set the hyphenation character.
+Currently ignored.
+.It Ic \&hcode Ar char code ...
+Set hyphenation codes of characters.
+Currently ignored.
+.It Ic \&hidechar Ar font char ...
+Hide characters in a font.
+This is a Heirloom extension and currently ignored.
+.It Ic \&hla Ar language
+Set hyphenation language.
+This is a groff extension and currently ignored.
+.It Ic \&hlm Op Ar number
+Set maximum number of consecutive hyphenated lines.
+Currently ignored.
+.It Ic \&hpf Ar filename
+Load hyphenation pattern file.
+This is a groff extension and currently ignored.
+.It Ic \&hpfa Ar filename
+Load hyphenation pattern file, appending to the current patterns.
+This is a groff extension and currently ignored.
+.It Ic \&hpfcode Ar code code ...
+Define mapping values for character codes in hyphenation patterns.
+This is a groff extension and currently ignored.
+.It Ic \&hw Ar word ...
+Specify hyphenation points in words.
+Currently ignored.
+.It Ic \&hy Op Ar mode
+Set automatic hyphenation mode.
+Currently ignored.
+.It Ic \&hylang Ar language
+Set hyphenation language.
+This is a Heirloom extension and currently ignored.
+.It Ic \&hylen Ar nchar
+Minimum word length for hyphenation.
+This is a Heirloom extension and currently ignored.
+.It Ic \&hym Op Ar length
+Set hyphenation margin.
+This is a groff extension and currently ignored.
+.It Ic \&hypp Ar penalty ...
+Define hyphenation penalties.
+This is a Heirloom extension and currently ignored.
+.It Ic \&hys Op Ar length
+Set hyphenation space.
+This is a groff extension and currently ignored.
+.It Ic \&ie Ar condition body
+The
+.Dq if
+half of an if/else conditional.
+The result of the conditional is pushed into a stack used by subsequent
+invocations of
+.Ic \&el ,
+which may be separated by any intervening input (or not exist at all).
+Its syntax is equivalent to
+.Ic \&if .
+.It Ic \&if Ar condition body
+Begin a conditional.
+This request can also be written as follows:
+.Bd -unfilled -offset indent
+.Pf . Ic \&if Ar condition No \e{ Ns Ar body
+.Ar body ... Ns \e}
+.Ed
+.Bd -unfilled -offset indent
+.Pf . Ic \&if Ar condition No \e{\e
+.Ar body ...
+.Pf . No \e}
+.Ed
+.Pp
+The
+.Ar condition
+is a boolean expression.
+Currently,
+.Xr mandoc 1
+supports the following subset of roff conditionals:
+.Bl -bullet
+.It
+If
+.Sq \&!
+is prefixed to
+.Ar condition ,
+it is logically inverted.
+.It
+If the first character of
+.Ar condition
+is
+.Sq n
+.Pq nroff mode
+or
+.Sq o
+.Pq odd page ,
+it evaluates to true.
+.It
+If the first character of
+.Ar condition
+is
+.Sq c
+.Pq character available ,
+.Sq e
+.Pq even page ,
+.Sq t
+.Pq troff mode ,
+or
+.Sq v
+.Pq vroff mode ,
+it evaluates to false.
+.It
+If the first character of
+.Ar condition
+is
+.Sq d ,
+it evaluates to true if the rest of
+.Ar condition
+is the name of an existing user defined macro or string;
+otherwise, it evaluates to false.
+.It
+If the first character of
+.Ar condition
+is
+.Sq r ,
+it evaluates to true if the rest of
+.Ar condition
+is the name of an existing number register;
+otherwise, it evaluates to false.
+.It
+If the
+.Ar condition
+starts with a parenthesis or with an optionally signed
+integer number, it is evaluated according to the rules of
+.Sx Numerical expressions
+explained below.
+It evaluates to true if the result is positive,
+or to false if the result is zero or negative.
+.It
+Otherwise, the first character of
+.Ar condition
+is regarded as a delimiter and it evaluates to true if the string
+extending from its first to its second occurrence is equal to the
+string extending from its second to its third occurrence.
+.It
+If
+.Ar condition
+cannot be parsed, it evaluates to false.
+.El
+.Pp
+If a conditional is false, its children are not processed, but are
+syntactically interpreted to preserve the integrity of the input
+document.
+Thus,
+.Pp
+.D1 \&.if t .ig
+.Pp
+will discard the
+.Sq \&.ig ,
+which may lead to interesting results, but
+.Pp
+.D1 \&.if t .if t \e{\e
+.Pp
+will continue to syntactically interpret to the block close of the final
+conditional.
+Sub-conditionals, in this case, obviously inherit the truth value of
+the parent.
+.Pp
+If the
+.Ar body
+section is begun by an escaped brace
+.Sq \e{ ,
+scope continues until the end of the input line containing the
+matching closing-brace escape sequence
+.Sq \e} .
+If the
+.Ar body
+is not enclosed in braces, scope continues until the end of the line.
+If the
+.Ar condition
+is followed by a
+.Ar body
+on the same line, whether after a brace or not, then requests and macros
+.Em must
+begin with a control character.
+It is generally more intuitive, in this case, to write
+.Bd -unfilled -offset indent
+.Pf . Ic \&if Ar condition No \e{\e
+.Pf . Ar request
+.Pf . No \e}
+.Ed
+.Pp
+than having the request or macro follow as
+.Pp
+.D1 Pf . Ic \&if Ar condition Pf \e{. Ar request
+.Pp
+The scope of a conditional is always parsed, but only executed if the
+conditional evaluates to true.
+.Pp
+Note that the
+.Sq \e}
+is converted into a zero-width escape sequence if not passed as a
+standalone macro
+.Sq \&.\e} .
+For example,
+.Pp
+.D1 \&.Fl a \e} b
+.Pp
+will result in
+.Sq \e}
+being considered an argument of the
+.Sq \&Fl
+macro.
+.It Ic \&ig Op Ar endmacro
+Ignore input.
+Its syntax can be either
+.Bd -literal -offset indent
+.Pf . Cm \&ig
+.Ar ignored text
+\&..
+.Ed
+.Pp
+or
+.Bd -literal -offset indent
+.Pf . Cm \&ig Ar endmacro
+.Ar ignored text
+.Pf . Ar endmacro
+.Ed
+.Pp
+In the first case, input is ignored until a
+.Sq \&..
+request is encountered on its own line.
+In the second case, input is ignored until the specified
+.Sq Pf . Ar endmacro
+is encountered.
+Do not use the escape character
+.Sq \e
+anywhere in the definition of
+.Ar endmacro ;
+it would cause very strange behaviour.
+.Pp
+When the
+.Ar endmacro
+is a roff request or a roff macro, like in
+.Pp
+.D1 \&.ig if
+.Pp
+the subsequent invocation of
+.Ic \&if
+will first terminate the
+.Ar ignored text ,
+then be invoked as usual.
+Otherwise, it only terminates the
+.Ar ignored text ,
+and arguments following it or the
+.Sq \&..
+request are discarded.
+.It Ic \&in Op Oo Cm + Ns | Ns Cm - Oc Ns Ar width
+Change indentation.
+See
+.Xr man 7 .
+Ignored in
+.Xr mdoc 7 .
+.It Ic \&index Ar register stringname substring
+Find a substring in a string.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&it Ar expression macro
+Set an input line trap.
+The named
+.Ar macro
+will be invoked after processing the number of input text lines
+specified by the numerical
+.Ar expression .
+While evaluating the
+.Ar expression ,
+the unit suffixes described below
+.Sx Scaling Widths
+are ignored.
+.It Ic \&it Ar expression macro
+Set an input line trap, not counting lines ending with \ec.
+Currently unsupported.
+.It Ic \&IX Ar class keystring
+To support the generation of a table of contents,
+.Xr pod2man 1
+emits this user-defined macro, usually without defining it.
+To avoid reporting large numbers of spurious errors,
+.Xr mandoc 1
+ignores it.
+.It Ic \&kern Op Cm 1 | 0
+Switch kerning on or off.
+Currently ignored.
+.It Ic \&kernafter Ar font char ... afmunits ...
+Increase kerning after some characters.
+This is a Heirloom extension and currently ignored.
+.It Ic \&kernbefore Ar font char ... afmunits ...
+Increase kerning before some characters.
+This is a Heirloom extension and currently ignored.
+.It Ic \&kernpair Ar font char ... font char ... afmunits
+Add a kerning pair to the kerning table.
+This is a Heirloom extension and currently ignored.
+.It Ic \&lc Op Ar glyph
+Define a leader repetition character.
+Currently unsupported.
+.It Ic \&lc_ctype Ar localename
+Set the
+.Dv LC_CTYPE
+locale.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&lds Ar macroname string
+Define a local string.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&length Ar register string
+Count the number of input characters in a string.
+Currently unsupported.
+.It Ic \&letadj Ar lspmin lshmin letss lspmax lshmax
+Dynamic letter spacing and reshaping.
+This is a Heirloom extension and currently ignored.
+.It Ic \&lf Ar lineno Op Ar filename
+Change the line number for error messages.
+Ignored because insecure.
+.It Ic \&lg Op Cm 1 | 0
+Switch the ligature mechanism on or off.
+Currently ignored.
+.It Ic \&lhang Ar font char ... afmunits
+Hang characters at left margin.
+This is a Heirloom extension and currently ignored.
+.It Ic \&linetabs Op Cm 1 | 0
+Enable or disable line-tabs mode.
+This is a groff extension and currently unsupported.
+.It Ic \&ll Op Oo Cm + Ns | Ns Cm - Oc Ns Ar width
+Change the output line length.
+If the
+.Ar width
+argument is omitted, the line length is reset to its previous value.
+The default setting for terminal output is 78n.
+If a sign is given, the line length is added to or subtracted from;
+otherwise, it is set to the provided value.
+Using this request in new manuals is discouraged for several reasons,
+among others because it overrides the
+.Xr mandoc 1
+.Fl O Cm width
+command line option.
+.It Ic \&lnr Ar register Oo Cm + Ns | Ns Cm - Oc Ns Ar value Op Ar increment
+Set local number register.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&lnrf Ar register Oo Cm + Ns | Ns Cm - Oc Ns Ar value Op Ar increment
+Set local floating-point register.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&lpfx Ar string
+Set a line prefix.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&ls Op Ar factor
+Set line spacing.
+It takes one integer argument specifying the vertical distance of
+subsequent output text lines measured in v units.
+Currently ignored.
+.It Ic \&lsm Ar macroname
+Set a leading spaces trap.
+This is a groff extension and currently unsupported.
+.It Ic \&lt Op Oo Cm + Ns | Ns Cm - Oc Ns Ar width
+Set title line length.
+Currently ignored.
+.It Ic \&mc Ar glyph Op Ar dist
+Print margin character in the right margin.
+The
+.Ar dist
+is currently ignored; instead, 1n is used.
+.It Ic \&mediasize Ar media
+Set the device media size.
+This is a Heirloom extension and currently ignored.
+.It Ic \&minss Ar width
+Set minimum word space.
+This is a Heirloom extension and currently ignored.
+.It Ic \&mk Op Ar register
+Mark vertical position.
+Currently ignored.
+.It Ic \&mso Ar filename
+Load a macro file using the search path.
+Ignored because insecure.
+.It Ic \&na
+Disable adjusting without changing the adjustment mode.
+Currently ignored.
+.It Ic \&ne Op Ar height
+Declare the need for the specified minimum vertical space
+before the next trap or the bottom of the page.
+Currently ignored.
+.It Ic \&nf
+Switch to no-fill mode.
+See
+.Xr man 7 .
+Ignored by
+.Xr mdoc 7 .
+.It Ic \&nh
+Turn off automatic hyphenation mode.
+Currently ignored.
+.It Ic \&nhychar Ar char ...
+Define hyphenation-inhibiting characters.
+This is a Heirloom extension and currently ignored.
+.It Ic \&nm Op Ar start Op Ar inc Op Ar space Op Ar indent
+Print line numbers.
+Currently unsupported.
+.It Ic \&nn Op Ar number
+Temporarily turn off line numbering.
+Currently unsupported.
+.It Ic \&nop Ar body
+Execute the rest of the input line as a request or macro line.
+Currently unsupported.
+.It Ic \&nr Ar register Oo Cm + Ns | Ns Cm - Oc Ns Ar expression
+Define or change a register.
+A register is an arbitrary string value that defines some sort of state,
+which influences parsing and/or formatting.
+For the syntax of
+.Ar expression ,
+see
+.Sx Numerical expressions
+below.
+If it is prefixed by a sign, the register will be
+incremented or decremented instead of assigned to.
+.Pp
+The following
+.Ar register
+is handled specially:
+.Bl -tag -width Ds
+.It Cm nS
+If set to a positive integer value, certain
+.Xr mdoc 7
+macros will behave in the same way as in the
+.Em SYNOPSIS
+section.
+If set to 0, these macros will behave in the same way as outside the
+.Em SYNOPSIS
+section, even when called within the
+.Em SYNOPSIS
+section itself.
+Note that starting a new
+.Xr mdoc 7
+section with the
+.Ic \&Sh
+macro will reset this register.
+.El
+.It Xo
+.Ic \&nrf Ar register Oo Cm + Ns | Ns Cm - Oc Ns Ar expression
+.Op Ar increment
+.Xc
+Define or change a floating-point register.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&nroff
+Force nroff mode.
+This is a groff extension and currently ignored.
+.It Ic \&ns
+Turn on no-space mode.
+Currently ignored.
+.It Ic \&nx Op Ar filename
+Abort processing of the current input file and process another one.
+Ignored because insecure.
+.It Ic \&open Ar stream file
+Open a file for writing.
+Ignored because insecure.
+.It Ic \&opena Ar stream file
+Open a file for appending.
+Ignored because insecure.
+.It Ic \&os
+Output saved vertical space.
+Currently ignored.
+.It Ic \&output Ar string
+Output directly to intermediate output.
+Not supported.
+.It Ic \&padj Op Cm 1 | 0
+Globally control paragraph-at-once adjustment.
+This is a Heirloom extension and currently ignored.
+.It Ic \&papersize Ar media
+Set the paper size.
+This is a Heirloom extension and currently ignored.
+.It Ic \&pc Op Ar char
+Change the page number character.
+Currently ignored.
+.It Ic \&pev
+Print environments.
+This is a groff extension and currently ignored.
+.It Ic \&pi Ar command
+Pipe output to a shell command.
+Ignored because insecure.
+.It Ic \&PI
+Low-level request used by
+.Ic \&BP .
+This is a Heirloom extension and currently unsupported.
+.It Ic \&pl Op Oo Cm + Ns | Ns Cm - Oc Ns Ar height
+Change page length.
+Currently ignored.
+.It Ic \&pm
+Print names and sizes of macros, strings, and diversions
+to standard error output.
+Currently ignored.
+.It Ic \&pn Oo Cm + Ns | Ns Cm - Oc Ns Ar number
+Change the page number of the next page.
+Currently ignored.
+.It Ic \&pnr
+Print all number registers on standard error output.
+Currently ignored.
+.It Ic \&po Op Oo Cm + Ns | Ns Cm - Oc Ns Ar offset
+Set a horizontal page offset.
+If no argument is specified, the page offset is reverted to its
+previous value.
+If a sign is specified, the new page offset is calculated relative
+to the current one; otherwise, it is absolute.
+The argument follows the syntax of
+.Sx Scaling Widths
+and the default scaling unit is
+.Cm m .
+.It Ic \&ps Op Oo Cm + Ns | Ns Cm - Oc Ns size
+Change point size.
+Currently ignored.
+.It Ic \&psbb Ar filename
+Retrieve the bounding box of a PostScript file.
+Currently unsupported.
+.It Ic \&pshape Ar indent length ...
+Set a special shape for the current paragraph.
+This is a Heirloom extension and currently unsupported.
+.It Ic \&pso Ar command
+Include output of a shell command.
+Ignored because insecure.
+.It Ic \&ptr
+Print the names and positions of all traps on standard error output.
+This is a groff extension and currently ignored.
+.It Ic \&pvs Op Oo Cm + Ns | Ns Cm - Oc Ns Ar height
+Change post-vertical spacing.
+This is a groff extension and currently ignored.
+.It Ic \&rchar Ar glyph ...
+Remove glyph definitions.
+Currently unsupported.
+.It Ic \&rd Op Ar prompt Op Ar agument ...
+Read from standard input.
+Currently ignored.
+.It Ic \&recursionlimit Ar maxrec maxtail
+Set the maximum stack depth for recursive macros.
+This is a Heirloom extension and currently ignored.
+.It Ic \&return Op Ar twice
+Exit a macro and return to the caller.
+Currently unsupported.
+.It Ic \&rfschar Ar font glyph ...
+Remove font-specific fallback glyph definitions.
+Currently unsupported.
+.It Ic \&rhang Ar font char ... afmunits
+Hang characters at right margin.
+This is a Heirloom extension and currently ignored.
+.It Ic \&rj Op Ar N
+Justify the next
+.Ar N
+input lines to the right margin without filling.
+.Ar N
+defaults to 1.
+An argument of 0 or less ends right adjustment.
+.It Ic \&rm Ar macroname
+Remove a request, macro or string.
+.It Ic \&rn Ar oldname newname
+Rename a request, macro, diversion, or string.
+In
+.Xr mandoc 1 ,
+user-defined macros,
+.Xr mdoc 7
+and
+.Xr man 7
+macros, and user-defined strings can be renamed, but renaming of
+predefined strings and of
+.Nm
+requests is not supported, and diversions are not implemented at all.
+.It Ic \&rnn Ar oldname newname
+Rename a number register.
+Currently unsupported.
+.It Ic \&rr Ar register
+Remove a register.
+.It Ic \&rs
+End no-space mode.
+Currently ignored.
+.It Ic \&rt Op Ar dist
+Return to marked vertical position.
+Currently ignored.
+.It Ic \&schar Ar glyph Op Ar string
+Define global fallback glyph.
+This is a groff extension and currently unsupported.
+.It Ic \&sentchar Ar char ...
+Define sentence-ending characters.
+This is a Heirloom extension and currently ignored.
+.It Ic \&shc Op Ar glyph
+Change the soft hyphen character.
+Currently ignored.
+.It Ic \&shift Op Ar number
+Shift macro arguments.
+Currently unsupported.
+.It Ic \&sizes Ar size ...
+Define permissible point sizes.
+This is a groff extension and currently ignored.
+.It Ic \&so Ar filename
+Include a source file.
+The file is read and its contents processed as input in place of the
+.Ic \&so
+request line.
+To avoid inadvertent inclusion of unrelated files,
+.Xr mandoc 1
+only accepts relative paths not containing the strings
+.Qq ../
+and
+.Qq /.. .
+.Pp
+This request requires
+.Xr man 1
+to change to the right directory before calling
+.Xr mandoc 1 ,
+per convention to the root of the manual tree.
+Typical usage looks like:
+.Pp
+.Dl \&.so man3/Xcursor.3
+.Pp
+As the whole concept is rather fragile, the use of
+.Ic \&so
+is discouraged.
+Use
+.Xr ln 1
+instead.
+.It Ic \&sp Op Ar height
+Break the output line and emit vertical space.
+The argument follows the syntax of
+.Sx Scaling Widths
+and defaults to one blank line
+.Pq Li 1v .
+.It Ic \&spacewidth Op Cm 1 | 0
+Set the space width from the font metrics file.
+This is a Heirloom extension and currently ignored.
+.It Ic \&special Op Ar font ...
+Define a special font.
+This is a groff extension and currently ignored.
+.It Ic \&spreadwarn Op Ar width
+Warn about wide spacing between words.
+Currently ignored.
+.It Ic \&ss Ar wordspace Op Ar sentencespace
+Set space character size.
+Currently ignored.
+.It Ic \&sty Ar position style
+Associate style with a font position.
+This is a groff extension and currently ignored.
+.It Ic \&substring Ar stringname startpos Op Ar endpos
+Replace a user-defined string with a substring.
+Currently unsupported.
+.It Ic \&sv Op Ar height
+Save vertical space.
+Currently ignored.
+.It Ic \&sy Ar command
+Execute shell command.
+Ignored because insecure.
+.It Ic \&T&
+Re-start a table layout, retaining the options of the prior table
+invocation.
+See
+.Sx \&TS .
+.It Ic \&ta Op Ar width ... Op Cm T Ar width ...
+Set tab stops.
+Each
+.Ar width
+argument follows the syntax of
+.Sx Scaling Widths .
+If prefixed by a plus sign, it is relative to the previous tab stop.
+The arguments after the
+.Cm T
+marker are used repeatedly as often as needed; for each reuse,
+they are taken relative to the last previously established tab stop.
+When
+.Ic \&ta
+is called without arguments, all tab stops are cleared.
+.It Ic \&tc Op Ar glyph
+Change tab repetition character.
+Currently unsupported.
+.It Ic \&TE
+End a table context.
+See
+.Sx \&TS .
+.It Ic \&ti Oo Cm + Ns | Ns Cm - Oc Ns Ar width
+Break the output line and indent the next output line by
+.Ar width .
+If a sign is specified, the temporary indentation is calculated
+relative to the current indentation; otherwise, it is absolute.
+The argument follows the syntax of
+.Sx Scaling Widths
+and the default scaling unit is
+.Cm m .
+.It Ic \&tkf Ar font minps width1 maxps width2
+Enable track kerning for a font.
+Currently ignored.
+.It Ic \&tl No \& Ap Ar left Ap Ar center Ap Ar right Ap
+Print a title line.
+Currently unsupported.
+.It Ic \&tm Ar string
+Print to standard error output.
+Currently ignored.
+.It Ic \&tm1 Ar string
+Print to standard error output, allowing leading blanks.
+This is a groff extension and currently ignored.
+.It Ic \&tmc Ar string
+Print to standard error output without a trailing newline.
+This is a groff extension and currently ignored.
+.It Ic \&tr Ar glyph glyph ...
+Output character translation.
+The first glyph in each pair is replaced by the second one.
+Character escapes can be used; for example,
+.Pp
+.Dl tr \e(xx\e(yy
+.Pp
+replaces all invocations of \e(xx with \e(yy.
+.It Ic \&track Ar font minps width1 maxps width2
+Static letter space tracking.
+This is a Heirloom extension and currently ignored.
+.It Ic \&transchar Ar char ...
+Define transparent characters for sentence-ending.
+This is a Heirloom extension and currently ignored.
+.It Ic \&trf Ar filename
+Output the contents of a file, disallowing invalid characters.
+This is a groff extension and ignored because insecure.
+.It Ic \&trimat Ar left top width height
+Set the TrimBox page parameter for PDF generation.
+This is a Heirloom extension and currently ignored.
+.It Ic \&trin Ar glyph glyph ...
+Output character translation, ignored by
+.Ic \&asciify .
+Currently unsupported.
+.It Ic \&trnt Ar glyph glyph ...
+Output character translation, ignored by \e!.
+Currently unsupported.
+.It Ic \&troff
+Force troff mode.
+This is a groff extension and currently ignored.
+.It Ic \&TS
+Begin a table, which formats input in aligned rows and columns.
+See
+.Xr tbl 7
+for a description of the tbl language.
+.It Ic \&uf Ar font
+Globally set the underline font.
+Currently ignored.
+.It Ic \&ul Op Ar N
+Underline next
+.Ar N
+input lines.
+Currently ignored.
+.It Ic \&unformat Ar divname
+Unformat spaces and tabs in a diversion.
+Currently unsupported.
+.It Ic \&unwatch Ar macroname
+Disable notification for string or macro.
+This is a Heirloom extension and currently ignored.
+.It Ic \&unwatchn Ar register
+Disable notification for register.
+This is a Heirloom extension and currently ignored.
+.It Ic \&vpt Op Cm 1 | 0
+Enable or disable vertical position traps.
+This is a groff extension and currently ignored.
+.It Ic \&vs Op Oo Cm + Ns | Ns Cm - Oc Ns Ar height
+Change vertical spacing.
+Currently ignored.
+.It Ic \&warn Ar flags
+Set warning level.
+Currently ignored.
+.It Ic \&warnscale Ar si
+Set the scaling indicator used in warnings.
+This is a groff extension and currently ignored.
+.It Ic \&watch Ar macroname
+Notify on change of string or macro.
+This is a Heirloom extension and currently ignored.
+.It Ic \&watchlength Ar maxlength
+On change, report the contents of macros and strings
+up to the specified length.
+This is a Heirloom extension and currently ignored.
+.It Ic \&watchn Ar register
+Notify on change of register.
+This is a Heirloom extension and currently ignored.
+.It Ic \&wh Ar dist Op Ar macroname
+Set a page location trap.
+Currently unsupported.
+.It Ic \&while Ar condition body
+Repeated execution while a condition is true.
+Currently unsupported.
+.It Ic \&write Oo \(dq Oc Ns Ar string
+Write to an open file.
+Ignored because insecure.
+.It Ic \&writec Oo \(dq Oc Ns Ar string
+Write to an open file without appending a newline.
+Ignored because insecure.
+.It Ic \&writem Ar macroname
+Write macro or string to an open file.
+Ignored because insecure.
+.It Ic \&xflag Ar level
+Set the extension level.
+This is a Heirloom extension and currently ignored.
+.El
+.Ss Numerical expressions
+The
+.Sx \&nr ,
+.Sx \&if ,
+and
+.Sx \&ie
+requests accept integer numerical expressions as arguments.
+These are always evaluated using the C
+.Vt int
+type; integer overflow works the same way as in the C language.
+Numbers consist of an arbitrary number of digits
+.Sq 0
+to
+.Sq 9
+prefixed by an optional sign
+.Sq +
+or
+.Sq - .
+Each number may be followed by one optional scaling unit described below
+.Sx Scaling Widths .
+The following equations hold:
+.Bd -literal -offset indent
+1i = 6v = 6P = 10m = 10n = 72p = 1000M = 240u = 240
+254c = 100i = 24000u = 24000
+1f = 65536u = 65536
+.Ed
+.Pp
+The following binary operators are implemented.
+Unless otherwise stated, they behave as in the C language:
+.Pp
+.Bl -tag -width 2n -compact
+.It Ic +
+addition
+.It Ic -
+subtraction
+.It Ic *
+multiplication
+.It Ic /
+division
+.It Ic %
+remainder of division
+.It Ic <
+less than
+.It Ic >
+greater than
+.It Ic ==
+equal to
+.It Ic =
+equal to, same effect as
+.Ic ==
+(this differs from C)
+.It Ic <=
+less than or equal to
+.It Ic >=
+greater than or equal to
+.It Ic <>
+not equal to (corresponds to C
+.Ic != ;
+this one is of limited portability, it is supported by Heirloom roff,
+but not by groff)
+.It Ic &
+logical and (corresponds to C
+.Ic && )
+.It Ic \&:
+logical or (corresponds to C
+.Ic || )
+.It Ic <?
+minimum (not available in C)
+.It Ic >?
+maximum (not available in C)
+.El
+.Pp
+There is no concept of precedence; evaluation proceeds from left to right,
+except when subexpressions are enclosed in parentheses.
+Inside parentheses, whitespace is ignored.
+.Sh ESCAPE SEQUENCE REFERENCE
+The
+.Xr mandoc 1
+.Nm
+parser recognises the following escape sequences.
+Note that the
+.Nm
+language defines more escape sequences not implemented in
+.Xr mandoc 1 .
+In
+.Xr mdoc 7
+and
+.Xr man 7
+documents, using escape sequences is discouraged except for those
+described in the
+.Sx LANGUAGE SYNTAX
+section above.
+.Pp
+A backslash followed by any character not listed here
+simply prints that character itself.
+.Ss \e<newline>
+A backslash at the end of an input line can be used to continue the
+logical input line on the next physical input line, joining the text
+on both lines together as if it were on a single input line.
+.Ss \e<space>
+The escape sequence backslash-space
+.Pq Sq \e\ \&
+is an unpaddable space-sized non-breaking space character; see
+.Sx Whitespace .
+.Ss \e\(dq
+The rest of the input line is treated as
+.Sx Comments .
+.Ss \e%
+Hyphenation allowed at this point of the word; ignored by
+.Xr mandoc 1 .
+.Ss \e&
+Non-printing zero-width character; see
+.Sx Whitespace .
+.Ss \e\(aq
+Acute accent special character; use
+.Sq \e(aa
+instead.
+.Ss \e( Ns Ar cc
+.Sx Special Characters
+with two-letter names, see
+.Xr mandoc_char 7 .
+.Ss \e* Ns Bq Ar name
+Interpolate the string with the
+.Ar name ;
+see
+.Sx Predefined Strings
+and
+.Sx ds .
+For short names, there are variants
+.No \e* Ns Ar c
+and
+.No \e*( Ns Ar cc .
+.Ss \e,
+Left italic correction (groff extension); ignored by
+.Xr mandoc 1 .
+.Ss \e-
+Special character
+.Dq mathematical minus sign .
+.Ss \e/
+Right italic correction (groff extension); ignored by
+.Xr mandoc 1 .
+.Ss \e Ns Bq Ar name
+.Sx Special Characters
+with names of arbitrary length, see
+.Xr mandoc_char 7 .
+.Ss \e^
+One-twelfth em half-narrow space character, effectively zero-width in
+.Xr mandoc 1 .
+.Ss \e`
+Grave accent special character; use
+.Sq \e(ga
+instead.
+.Ss \e{
+Begin conditional input; see
+.Sx if .
+.Ss \e\(ba
+One-sixth em narrow space character, effectively zero-width in
+.Xr mandoc 1 .
+.Ss \e}
+End conditional input; see
+.Sx if .
+.Ss \e~
+Paddable non-breaking space character.
+.Ss \e0
+Digit width space character.
+.Ss \eA\(aq Ns Ar string Ns \(aq
+Anchor definition; ignored by
+.Xr mandoc 1 .
+.Ss \eB\(aq Ns Ar string Ns \(aq
+Interpolate
+.Sq 1
+if
+.Ar string
+conforms to the syntax of
+.Sx Numerical expressions
+explained above and
+.Sq 0
+otherwise.
+.Ss \eb\(aq Ns Ar string Ns \(aq
+Bracket building function; ignored by
+.Xr mandoc 1 .
+.Ss \eC\(aq Ns Ar name Ns \(aq
+.Sx Special Characters
+with names of arbitrary length.
+.Ss \ec
+When encountered at the end of an input text line,
+the next input text line is considered to continue that line,
+even if there are request or macro lines in between.
+No whitespace is inserted.
+.Ss \eD\(aq Ns Ar string Ns \(aq
+Draw graphics function; ignored by
+.Xr mandoc 1 .
+.Ss \ed
+Move down by half a line; ignored by
+.Xr mandoc 1 .
+.Ss \ee
+Backslash special character.
+.Ss \eF Ns Bq Ar name
+Switch font family (groff extension); ignored by
+.Xr mandoc 1 .
+For short names, there are variants
+.No \eF Ns Ar c
+and
+.No \eF( Ns Ar cc .
+.Ss \ef Ns Bq Ar name
+Switch to the font
+.Ar name ,
+see
+.Sx Text Decoration .
+For short names, there are variants
+.No \ef Ns Ar c
+and
+.No \ef( Ns Ar cc .
+.Ss \eg Ns Bq Ar name
+Interpolate the format of a number register; ignored by
+.Xr mandoc 1 .
+For short names, there are variants
+.No \eg Ns Ar c
+and
+.No \eg( Ns Ar cc .
+.Ss \eH\(aq Ns Oo +|- Oc Ns Ar number Ns \(aq
+Set the height of the current font; ignored by
+.Xr mandoc 1 .
+.Ss \eh\(aq Ns Oo Cm \&| Oc Ns Ar width Ns \(aq
+Horizontal motion.
+If the vertical bar is given, the motion is relative to the current
+indentation.
+Otherwise, it is relative to the current position.
+The default scaling unit is
+.Cm m .
+.Ss \ek Ns Bq Ar name
+Mark horizontal input place in register; ignored by
+.Xr mandoc 1 .
+For short names, there are variants
+.No \ek Ns Ar c
+and
+.No \ek( Ns Ar cc .
+.Ss \eL\(aq Ns Ar number Ns Oo Ar c Oc Ns \(aq
+Vertical line drawing function; ignored by
+.Xr mandoc 1 .
+.Ss \el\(aq Ns Ar width Ns Oo Ar c Oc Ns \(aq
+Draw a horizontal line of
+.Ar width
+using the glyph
+.Ar c .
+.Ss \eM Ns Bq Ar name
+Set fill (background) color (groff extension); ignored by
+.Xr mandoc 1 .
+For short names, there are variants
+.No \eM Ns Ar c
+and
+.No \eM( Ns Ar cc .
+.Ss \em Ns Bq Ar name
+Set glyph drawing color (groff extension); ignored by
+.Xr mandoc 1 .
+For short names, there are variants
+.No \em Ns Ar c
+and
+.No \em( Ns Ar cc .
+.Ss \eN\(aq Ns Ar number Ns \(aq
+Character
+.Ar number
+on the current font.
+.Ss \en Ns Bq Ar name
+Interpolate the number register
+.Ar name .
+For short names, there are variants
+.No \en Ns Ar c
+and
+.No \en( Ns Ar cc .
+.Ss \eo\(aq Ns Ar string Ns \(aq
+Overstrike, writing all the characters contained in the
+.Ar string
+to the same output position.
+In terminal and HTML output modes,
+only the last one of the characters is visible.
+.Ss \ep
+Break the output line at the end of the current word.
+.Ss \eR\(aq Ns Ar name Oo +|- Oc Ns Ar number Ns \(aq
+Set number register; ignored by
+.Xr mandoc 1 .
+.Ss \eS\(aq Ns Ar number Ns \(aq
+Slant output; ignored by
+.Xr mandoc 1 .
+.Ss \es\(aq Ns Oo +|- Oc Ns Ar number Ns \(aq
+Change point size; ignored by
+.Xr mandoc 1 .
+Alternative forms
+.No \es Ns Oo +|- Oc Ns Ar n ,
+.No \es Ns Oo +|- Oc Ns \(aq Ns Ar number Ns \(aq ,
+.No \es Ns Bq Oo +|- Oc Ns Ar number ,
+and
+.No \es Ns Oo +|- Oc Ns Bq Ar number
+are also parsed and ignored.
+.Ss \et
+Horizontal tab; ignored by
+.Xr mandoc 1 .
+.Ss \eu
+Move up by half a line; ignored by
+.Xr mandoc 1 .
+.Ss \eV Ns Bq Ar name
+Interpolate an environment variable; ignored by
+.Xr mandoc 1 .
+For short names, there are variants
+.No \eV Ns Ar c
+and
+.No \eV( Ns Ar cc .
+.Ss \ev\(aq Ns Ar number Ns \(aq
+Vertical motion; ignored by
+.Xr mandoc 1 .
+.Ss \ew\(aq Ns Ar string Ns \(aq
+Interpolate the width of the
+.Ar string .
+The
+.Xr mandoc 1
+implementation assumes that after expansion of user-defined strings, the
+.Ar string
+only contains normal characters, no escape sequences, and that each
+character has a width of 24 basic units.
+.Ss \eX\(aq Ns Ar string Ns \(aq
+Output
+.Ar string
+as device control function; ignored in nroff mode and by
+.Xr mandoc 1 .
+.Ss \ex\(aq Ns Ar number Ns \(aq
+Extra line space function; ignored by
+.Xr mandoc 1 .
+.Ss \eY Ns Bq Ar name
+Output a string as a device control function; ignored in nroff mode and by
+.Xr mandoc 1 .
+For short names, there are variants
+.No \eY Ns Ar c
+and
+.No \eY( Ns Ar cc .
+.Ss \eZ\(aq Ns Ar string Ns \(aq
+Print
+.Ar string
+with zero width and height; ignored by
+.Xr mandoc 1 .
+.Ss \ez
+Output the next character without advancing the cursor position.
+.Sh COMPATIBILITY
+The
+.Xr mandoc 1
+implementation of the
+.Nm
+language is intentionally incomplete.
+Unimplemented features include:
+.Pp
+.Bl -dash -compact
+.It
+For security reasons,
+.Xr mandoc 1
+never reads or writes external files except via
+.Sx \&so
+requests with safe relative paths.
+.It
+There is no automatic hyphenation, no adjustment to the right margin,
+and no centering; the output is always set flush-left.
+.It
+Support for setting tabulator positions
+and tabulator and leader characters is missing,
+and support for manually changing indentation is limited.
+.It
+The
+.Sq u
+scaling unit is the default terminal unit.
+In traditional troff systems, this unit changes depending on the
+output media.
+.It
+Width measurements are implemented in a crude way
+and often yield wrong results.
+Explicit movement requests and escapes are ignored.
+.It
+There is no concept of output pages, no support for floats,
+graphics drawing, and picture inclusion;
+terminal output is always continuous.
+.It
+Requests regarding color, font families, and glyph manipulation
+are ignored.
+Font support is very limited.
+Kerning is not implemented, and no ligatures are produced.
+.It
+The
+.Qq \(aq
+macro control character does not suppress output line breaks.
+.It
+Diversions are not implemented,
+and support for traps is very incomplete.
+.It
+While recursion is supported,
+.Sx \&while
+loops are not.
+.El
+.Pp
+The special semantics of the
+.Cm nS
+number register is an idiosyncracy of
+.Ox
+manuals and not supported by other
+.Xr mdoc 7
+implementations.
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr eqn 7 ,
+.Xr man 7 ,
+.Xr mandoc_char 7 ,
+.Xr mdoc 7 ,
+.Xr tbl 7
+.Rs
+.%A Joseph F. Ossanna
+.%A Brian W. Kernighan
+.%I AT&T Bell Laboratories
+.%T Troff User's Manual
+.%R Computing Science Technical Report
+.%N 54
+.%C Murray Hill, New Jersey
+.%D 1976 and 1992
+.%U http://www.kohala.com/start/troff/cstr54.ps
+.Re
+.Rs
+.%A Joseph F. Ossanna
+.%A Brian W. Kernighan
+.%A Gunnar Ritter
+.%T Heirloom Documentation Tools Nroff/Troff User's Manual
+.%D September 17, 2007
+.%U http://heirloom.sourceforge.net/doctools/troff.pdf
+.Re
+.Sh HISTORY
+The RUNOFF typesetting system, whose input forms the basis for
+.Nm ,
+was written in MAD and FAP for the CTSS operating system by Jerome E.
+Saltzer in 1964.
+Doug McIlroy rewrote it in BCPL in 1969, renaming it
+.Nm .
+Dennis M. Ritchie rewrote McIlroy's
+.Nm
+in PDP-11 assembly for
+.At v1 ,
+Joseph F. Ossanna improved roff and renamed it nroff
+for
+.At v2 ,
+then ported nroff to C as troff, which Brian W. Kernighan released with
+.At v7 .
+In 1989, James Clarke re-implemented troff in C++, naming it groff.
+.Sh AUTHORS
+.An -nosplit
+This
+.Nm
+reference was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+and
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .

Added: vendor/mandoc/dist/roff.c
===================================================================
--- vendor/mandoc/dist/roff.c	                        (rev 0)
+++ vendor/mandoc/dist/roff.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,3748 @@
+/*	$Id: roff.c,v 1.324 2017/07/14 17:16:16 schwarze Exp $ */
+/*
+ * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "roff.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+#include "libroff.h"
+
+/* Maximum number of string expansions per line, to break infinite loops. */
+#define	EXPAND_LIMIT	1000
+
+/* Types of definitions of macros and strings. */
+#define	ROFFDEF_USER	(1 << 1)  /* User-defined. */
+#define	ROFFDEF_PRE	(1 << 2)  /* Predefined. */
+#define	ROFFDEF_REN	(1 << 3)  /* Renamed standard macro. */
+#define	ROFFDEF_STD	(1 << 4)  /* mdoc(7) or man(7) macro. */
+#define	ROFFDEF_ANY	(ROFFDEF_USER | ROFFDEF_PRE | \
+			 ROFFDEF_REN | ROFFDEF_STD)
+
+/* --- data types --------------------------------------------------------- */
+
+/*
+ * An incredibly-simple string buffer.
+ */
+struct	roffstr {
+	char		*p; /* nil-terminated buffer */
+	size_t		 sz; /* saved strlen(p) */
+};
+
+/*
+ * A key-value roffstr pair as part of a singly-linked list.
+ */
+struct	roffkv {
+	struct roffstr	 key;
+	struct roffstr	 val;
+	struct roffkv	*next; /* next in list */
+};
+
+/*
+ * A single number register as part of a singly-linked list.
+ */
+struct	roffreg {
+	struct roffstr	 key;
+	int		 val;
+	struct roffreg	*next;
+};
+
+/*
+ * Association of request and macro names with token IDs.
+ */
+struct	roffreq {
+	enum roff_tok	 tok;
+	char		 name[];
+};
+
+struct	roff {
+	struct mparse	*parse; /* parse point */
+	struct roff_man	*man; /* mdoc or man parser */
+	struct roffnode	*last; /* leaf of stack */
+	int		*rstack; /* stack of inverted `ie' values */
+	struct ohash	*reqtab; /* request lookup table */
+	struct roffreg	*regtab; /* number registers */
+	struct roffkv	*strtab; /* user-defined strings & macros */
+	struct roffkv	*rentab; /* renamed strings & macros */
+	struct roffkv	*xmbtab; /* multi-byte trans table (`tr') */
+	struct roffstr	*xtab; /* single-byte trans table (`tr') */
+	const char	*current_string; /* value of last called user macro */
+	struct tbl_node	*first_tbl; /* first table parsed */
+	struct tbl_node	*last_tbl; /* last table parsed */
+	struct tbl_node	*tbl; /* current table being parsed */
+	struct eqn_node	*last_eqn; /* equation parser */
+	struct eqn_node	*eqn; /* active equation parser */
+	int		 eqn_inline; /* current equation is inline */
+	int		 options; /* parse options */
+	int		 rstacksz; /* current size limit of rstack */
+	int		 rstackpos; /* position in rstack */
+	int		 format; /* current file in mdoc or man format */
+	int		 argc; /* number of args of the last macro */
+	char		 control; /* control character */
+	char		 escape; /* escape character */
+};
+
+struct	roffnode {
+	enum roff_tok	 tok; /* type of node */
+	struct roffnode	*parent; /* up one in stack */
+	int		 line; /* parse line */
+	int		 col; /* parse col */
+	char		*name; /* node name, e.g. macro name */
+	char		*end; /* end-rules: custom token */
+	int		 endspan; /* end-rules: next-line or infty */
+	int		 rule; /* current evaluation rule */
+};
+
+#define	ROFF_ARGS	 struct roff *r, /* parse ctx */ \
+			 enum roff_tok tok, /* tok of macro */ \
+			 struct buf *buf, /* input buffer */ \
+			 int ln, /* parse line */ \
+			 int ppos, /* original pos in buffer */ \
+			 int pos, /* current pos in buffer */ \
+			 int *offs /* reset offset of buffer data */
+
+typedef	enum rofferr (*roffproc)(ROFF_ARGS);
+
+struct	roffmac {
+	roffproc	 proc; /* process new macro */
+	roffproc	 text; /* process as child text of macro */
+	roffproc	 sub; /* process as child of macro */
+	int		 flags;
+#define	ROFFMAC_STRUCT	(1 << 0) /* always interpret */
+};
+
+struct	predef {
+	const char	*name; /* predefined input name */
+	const char	*str; /* replacement symbol */
+};
+
+#define	PREDEF(__name, __str) \
+	{ (__name), (__str) },
+
+/* --- function prototypes ------------------------------------------------ */
+
+static	void		 roffnode_cleanscope(struct roff *);
+static	void		 roffnode_pop(struct roff *);
+static	void		 roffnode_push(struct roff *, enum roff_tok,
+				const char *, int, int);
+static	void		 roff_addtbl(struct roff_man *, struct tbl_node *);
+static	enum rofferr	 roff_als(ROFF_ARGS);
+static	enum rofferr	 roff_block(ROFF_ARGS);
+static	enum rofferr	 roff_block_text(ROFF_ARGS);
+static	enum rofferr	 roff_block_sub(ROFF_ARGS);
+static	enum rofferr	 roff_br(ROFF_ARGS);
+static	enum rofferr	 roff_cblock(ROFF_ARGS);
+static	enum rofferr	 roff_cc(ROFF_ARGS);
+static	void		 roff_ccond(struct roff *, int, int);
+static	enum rofferr	 roff_cond(ROFF_ARGS);
+static	enum rofferr	 roff_cond_text(ROFF_ARGS);
+static	enum rofferr	 roff_cond_sub(ROFF_ARGS);
+static	enum rofferr	 roff_ds(ROFF_ARGS);
+static	enum rofferr	 roff_ec(ROFF_ARGS);
+static	enum rofferr	 roff_eo(ROFF_ARGS);
+static	enum rofferr	 roff_eqndelim(struct roff *, struct buf *, int);
+static	int		 roff_evalcond(struct roff *r, int, char *, int *);
+static	int		 roff_evalnum(struct roff *, int,
+				const char *, int *, int *, int);
+static	int		 roff_evalpar(struct roff *, int,
+				const char *, int *, int *, int);
+static	int		 roff_evalstrcond(const char *, int *);
+static	void		 roff_free1(struct roff *);
+static	void		 roff_freereg(struct roffreg *);
+static	void		 roff_freestr(struct roffkv *);
+static	size_t		 roff_getname(struct roff *, char **, int, int);
+static	int		 roff_getnum(const char *, int *, int *, int);
+static	int		 roff_getop(const char *, int *, char *);
+static	int		 roff_getregn(const struct roff *,
+				const char *, size_t);
+static	int		 roff_getregro(const struct roff *,
+				const char *name);
+static	const char	*roff_getstrn(const struct roff *,
+				const char *, size_t, int *);
+static	int		 roff_hasregn(const struct roff *,
+				const char *, size_t);
+static	enum rofferr	 roff_insec(ROFF_ARGS);
+static	enum rofferr	 roff_it(ROFF_ARGS);
+static	enum rofferr	 roff_line_ignore(ROFF_ARGS);
+static	void		 roff_man_alloc1(struct roff_man *);
+static	void		 roff_man_free1(struct roff_man *);
+static	enum rofferr	 roff_manyarg(ROFF_ARGS);
+static	enum rofferr	 roff_nr(ROFF_ARGS);
+static	enum rofferr	 roff_onearg(ROFF_ARGS);
+static	enum roff_tok	 roff_parse(struct roff *, char *, int *,
+				int, int);
+static	enum rofferr	 roff_parsetext(struct roff *, struct buf *,
+				int, int *);
+static	enum rofferr	 roff_renamed(ROFF_ARGS);
+static	enum rofferr	 roff_res(struct roff *, struct buf *, int, int);
+static	enum rofferr	 roff_rm(ROFF_ARGS);
+static	enum rofferr	 roff_rn(ROFF_ARGS);
+static	enum rofferr	 roff_rr(ROFF_ARGS);
+static	void		 roff_setstr(struct roff *,
+				const char *, const char *, int);
+static	void		 roff_setstrn(struct roffkv **, const char *,
+				size_t, const char *, size_t, int);
+static	enum rofferr	 roff_so(ROFF_ARGS);
+static	enum rofferr	 roff_tr(ROFF_ARGS);
+static	enum rofferr	 roff_Dd(ROFF_ARGS);
+static	enum rofferr	 roff_TE(ROFF_ARGS);
+static	enum rofferr	 roff_TS(ROFF_ARGS);
+static	enum rofferr	 roff_EQ(ROFF_ARGS);
+static	enum rofferr	 roff_EN(ROFF_ARGS);
+static	enum rofferr	 roff_T_(ROFF_ARGS);
+static	enum rofferr	 roff_unsupp(ROFF_ARGS);
+static	enum rofferr	 roff_userdef(ROFF_ARGS);
+
+/* --- constant data ------------------------------------------------------ */
+
+#define	ROFFNUM_SCALE	(1 << 0)  /* Honour scaling in roff_getnum(). */
+#define	ROFFNUM_WHITE	(1 << 1)  /* Skip whitespace in roff_evalnum(). */
+
+const char *__roff_name[MAN_MAX + 1] = {
+	"br",		"ce",		"ft",		"ll",
+	"mc",		"po",		"rj",		"sp",
+	"ta",		"ti",		NULL,
+	"ab",		"ad",		"af",		"aln",
+	"als",		"am",		"am1",		"ami",
+	"ami1",		"as",		"as1",		"asciify",
+	"backtrace",	"bd",		"bleedat",	"blm",
+        "box",		"boxa",		"bp",		"BP",
+	"break",	"breakchar",	"brnl",		"brp",
+	"brpnl",	"c2",		"cc",
+	"cf",		"cflags",	"ch",		"char",
+	"chop",		"class",	"close",	"CL",
+	"color",	"composite",	"continue",	"cp",
+	"cropat",	"cs",		"cu",		"da",
+	"dch",		"Dd",		"de",		"de1",
+	"defcolor",	"dei",		"dei1",		"device",
+	"devicem",	"di",		"do",		"ds",
+	"ds1",		"dwh",		"dt",		"ec",
+	"ecr",		"ecs",		"el",		"em",
+	"EN",		"eo",		"EP",		"EQ",
+	"errprint",	"ev",		"evc",		"ex",
+	"fallback",	"fam",		"fc",		"fchar",
+	"fcolor",	"fdeferlig",	"feature",	"fkern",
+	"fl",		"flig",		"fp",		"fps",
+	"fschar",	"fspacewidth",	"fspecial",	"ftr",
+	"fzoom",	"gcolor",	"hc",		"hcode",
+	"hidechar",	"hla",		"hlm",		"hpf",
+	"hpfa",		"hpfcode",	"hw",		"hy",
+	"hylang",	"hylen",	"hym",		"hypp",
+	"hys",		"ie",		"if",		"ig",
+	"index",	"it",		"itc",		"IX",
+	"kern",		"kernafter",	"kernbefore",	"kernpair",
+	"lc",		"lc_ctype",	"lds",		"length",
+	"letadj",	"lf",		"lg",		"lhang",
+	"linetabs",	"lnr",		"lnrf",		"lpfx",
+	"ls",		"lsm",		"lt",
+	"mediasize",	"minss",	"mk",		"mso",
+	"na",		"ne",		"nh",		"nhychar",
+	"nm",		"nn",		"nop",		"nr",
+	"nrf",		"nroff",	"ns",		"nx",
+	"open",		"opena",	"os",		"output",
+	"padj",		"papersize",	"pc",		"pev",
+	"pi",		"PI",		"pl",		"pm",
+	"pn",		"pnr",		"ps",
+	"psbb",		"pshape",	"pso",		"ptr",
+	"pvs",		"rchar",	"rd",		"recursionlimit",
+	"return",	"rfschar",	"rhang",
+	"rm",		"rn",		"rnn",		"rr",
+	"rs",		"rt",		"schar",	"sentchar",
+	"shc",		"shift",	"sizes",	"so",
+	"spacewidth",	"special",	"spreadwarn",	"ss",
+	"sty",		"substring",	"sv",		"sy",
+	"T&",		"tc",		"TE",
+	"TH",		"tkf",		"tl",
+	"tm",		"tm1",		"tmc",		"tr",
+	"track",	"transchar",	"trf",		"trimat",
+	"trin",		"trnt",		"troff",	"TS",
+	"uf",		"ul",		"unformat",	"unwatch",
+	"unwatchn",	"vpt",		"vs",		"warn",
+	"warnscale",	"watch",	"watchlength",	"watchn",
+	"wh",		"while",	"write",	"writec",
+	"writem",	"xflag",	".",		NULL,
+	NULL,		"text",
+	"Dd",		"Dt",		"Os",		"Sh",
+	"Ss",		"Pp",		"D1",		"Dl",
+	"Bd",		"Ed",		"Bl",		"El",
+	"It",		"Ad",		"An",		"Ap",
+	"Ar",		"Cd",		"Cm",		"Dv",
+	"Er",		"Ev",		"Ex",		"Fa",
+	"Fd",		"Fl",		"Fn",		"Ft",
+	"Ic",		"In",		"Li",		"Nd",
+	"Nm",		"Op",		"Ot",		"Pa",
+	"Rv",		"St",		"Va",		"Vt",
+	"Xr",		"%A",		"%B",		"%D",
+	"%I",		"%J",		"%N",		"%O",
+	"%P",		"%R",		"%T",		"%V",
+	"Ac",		"Ao",		"Aq",		"At",
+	"Bc",		"Bf",		"Bo",		"Bq",
+	"Bsx",		"Bx",		"Db",		"Dc",
+	"Do",		"Dq",		"Ec",		"Ef",
+	"Em",		"Eo",		"Fx",		"Ms",
+	"No",		"Ns",		"Nx",		"Ox",
+	"Pc",		"Pf",		"Po",		"Pq",
+	"Qc",		"Ql",		"Qo",		"Qq",
+	"Re",		"Rs",		"Sc",		"So",
+	"Sq",		"Sm",		"Sx",		"Sy",
+	"Tn",		"Ux",		"Xc",		"Xo",
+	"Fo",		"Fc",		"Oo",		"Oc",
+	"Bk",		"Ek",		"Bt",		"Hf",
+	"Fr",		"Ud",		"Lb",		"Lp",
+	"Lk",		"Mt",		"Brq",		"Bro",
+	"Brc",		"%C",		"Es",		"En",
+	"Dx",		"%Q",		"%U",		"Ta",
+	NULL,
+	"TH",		"SH",		"SS",		"TP",
+	"LP",		"PP",		"P",		"IP",
+	"HP",		"SM",		"SB",		"BI",
+	"IB",		"BR",		"RB",		"R",
+	"B",		"I",		"IR",		"RI",
+	"nf",		"fi",
+	"RE",		"RS",		"DT",		"UC",
+	"PD",		"AT",		"in",
+	"OP",		"EX",		"EE",		"UR",
+	"UE",		"MT",		"ME",		NULL
+};
+const	char *const *roff_name = __roff_name;
+
+static	struct roffmac	 roffs[TOKEN_NONE] = {
+	{ roff_br, NULL, NULL, 0 },  /* br */
+	{ roff_onearg, NULL, NULL, 0 },  /* ce */
+	{ roff_onearg, NULL, NULL, 0 },  /* ft */
+	{ roff_onearg, NULL, NULL, 0 },  /* ll */
+	{ roff_onearg, NULL, NULL, 0 },  /* mc */
+	{ roff_onearg, NULL, NULL, 0 },  /* po */
+	{ roff_onearg, NULL, NULL, 0 },  /* rj */
+	{ roff_onearg, NULL, NULL, 0 },  /* sp */
+	{ roff_manyarg, NULL, NULL, 0 },  /* ta */
+	{ roff_onearg, NULL, NULL, 0 },  /* ti */
+	{ NULL, NULL, NULL, 0 },  /* ROFF_MAX */
+	{ roff_unsupp, NULL, NULL, 0 },  /* ab */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ad */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* af */
+	{ roff_unsupp, NULL, NULL, 0 },  /* aln */
+	{ roff_als, NULL, NULL, 0 },  /* als */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* am */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* am1 */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* ami */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* ami1 */
+	{ roff_ds, NULL, NULL, 0 },  /* as */
+	{ roff_ds, NULL, NULL, 0 },  /* as1 */
+	{ roff_unsupp, NULL, NULL, 0 },  /* asciify */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* backtrace */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* bd */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* bleedat */
+	{ roff_unsupp, NULL, NULL, 0 },  /* blm */
+	{ roff_unsupp, NULL, NULL, 0 },  /* box */
+	{ roff_unsupp, NULL, NULL, 0 },  /* boxa */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* bp */
+	{ roff_unsupp, NULL, NULL, 0 },  /* BP */
+	{ roff_unsupp, NULL, NULL, 0 },  /* break */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* breakchar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* brnl */
+	{ roff_br, NULL, NULL, 0 },  /* brp */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* brpnl */
+	{ roff_unsupp, NULL, NULL, 0 },  /* c2 */
+	{ roff_cc, NULL, NULL, 0 },  /* cc */
+	{ roff_insec, NULL, NULL, 0 },  /* cf */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* cflags */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ch */
+	{ roff_unsupp, NULL, NULL, 0 },  /* char */
+	{ roff_unsupp, NULL, NULL, 0 },  /* chop */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* class */
+	{ roff_insec, NULL, NULL, 0 },  /* close */
+	{ roff_unsupp, NULL, NULL, 0 },  /* CL */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* color */
+	{ roff_unsupp, NULL, NULL, 0 },  /* composite */
+	{ roff_unsupp, NULL, NULL, 0 },  /* continue */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* cp */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* cropat */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* cs */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* cu */
+	{ roff_unsupp, NULL, NULL, 0 },  /* da */
+	{ roff_unsupp, NULL, NULL, 0 },  /* dch */
+	{ roff_Dd, NULL, NULL, 0 },  /* Dd */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* de */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* de1 */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* defcolor */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* dei */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* dei1 */
+	{ roff_unsupp, NULL, NULL, 0 },  /* device */
+	{ roff_unsupp, NULL, NULL, 0 },  /* devicem */
+	{ roff_unsupp, NULL, NULL, 0 },  /* di */
+	{ roff_unsupp, NULL, NULL, 0 },  /* do */
+	{ roff_ds, NULL, NULL, 0 },  /* ds */
+	{ roff_ds, NULL, NULL, 0 },  /* ds1 */
+	{ roff_unsupp, NULL, NULL, 0 },  /* dwh */
+	{ roff_unsupp, NULL, NULL, 0 },  /* dt */
+	{ roff_ec, NULL, NULL, 0 },  /* ec */
+	{ roff_unsupp, NULL, NULL, 0 },  /* ecr */
+	{ roff_unsupp, NULL, NULL, 0 },  /* ecs */
+	{ roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT },  /* el */
+	{ roff_unsupp, NULL, NULL, 0 },  /* em */
+	{ roff_EN, NULL, NULL, 0 },  /* EN */
+	{ roff_eo, NULL, NULL, 0 },  /* eo */
+	{ roff_unsupp, NULL, NULL, 0 },  /* EP */
+	{ roff_EQ, NULL, NULL, 0 },  /* EQ */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* errprint */
+	{ roff_unsupp, NULL, NULL, 0 },  /* ev */
+	{ roff_unsupp, NULL, NULL, 0 },  /* evc */
+	{ roff_unsupp, NULL, NULL, 0 },  /* ex */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fallback */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fam */
+	{ roff_unsupp, NULL, NULL, 0 },  /* fc */
+	{ roff_unsupp, NULL, NULL, 0 },  /* fchar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fcolor */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fdeferlig */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* feature */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fkern */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fl */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* flig */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fp */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fps */
+	{ roff_unsupp, NULL, NULL, 0 },  /* fschar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fspacewidth */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fspecial */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ftr */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* fzoom */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* gcolor */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hc */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hcode */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hidechar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hla */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hlm */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hpf */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hpfa */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hpfcode */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hw */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hy */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hylang */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hylen */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hym */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hypp */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* hys */
+	{ roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT },  /* ie */
+	{ roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT },  /* if */
+	{ roff_block, roff_block_text, roff_block_sub, 0 },  /* ig */
+	{ roff_unsupp, NULL, NULL, 0 },  /* index */
+	{ roff_it, NULL, NULL, 0 },  /* it */
+	{ roff_unsupp, NULL, NULL, 0 },  /* itc */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* IX */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* kern */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* kernafter */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* kernbefore */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* kernpair */
+	{ roff_unsupp, NULL, NULL, 0 },  /* lc */
+	{ roff_unsupp, NULL, NULL, 0 },  /* lc_ctype */
+	{ roff_unsupp, NULL, NULL, 0 },  /* lds */
+	{ roff_unsupp, NULL, NULL, 0 },  /* length */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* letadj */
+	{ roff_insec, NULL, NULL, 0 },  /* lf */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* lg */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* lhang */
+	{ roff_unsupp, NULL, NULL, 0 },  /* linetabs */
+	{ roff_unsupp, NULL, NULL, 0 },  /* lnr */
+	{ roff_unsupp, NULL, NULL, 0 },  /* lnrf */
+	{ roff_unsupp, NULL, NULL, 0 },  /* lpfx */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ls */
+	{ roff_unsupp, NULL, NULL, 0 },  /* lsm */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* lt */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* mediasize */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* minss */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* mk */
+	{ roff_insec, NULL, NULL, 0 },  /* mso */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* na */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ne */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* nh */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* nhychar */
+	{ roff_unsupp, NULL, NULL, 0 },  /* nm */
+	{ roff_unsupp, NULL, NULL, 0 },  /* nn */
+	{ roff_unsupp, NULL, NULL, 0 },  /* nop */
+	{ roff_nr, NULL, NULL, 0 },  /* nr */
+	{ roff_unsupp, NULL, NULL, 0 },  /* nrf */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* nroff */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ns */
+	{ roff_insec, NULL, NULL, 0 },  /* nx */
+	{ roff_insec, NULL, NULL, 0 },  /* open */
+	{ roff_insec, NULL, NULL, 0 },  /* opena */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* os */
+	{ roff_unsupp, NULL, NULL, 0 },  /* output */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* padj */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* papersize */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* pc */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* pev */
+	{ roff_insec, NULL, NULL, 0 },  /* pi */
+	{ roff_unsupp, NULL, NULL, 0 },  /* PI */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* pl */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* pm */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* pn */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* pnr */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ps */
+	{ roff_unsupp, NULL, NULL, 0 },  /* psbb */
+	{ roff_unsupp, NULL, NULL, 0 },  /* pshape */
+	{ roff_insec, NULL, NULL, 0 },  /* pso */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ptr */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* pvs */
+	{ roff_unsupp, NULL, NULL, 0 },  /* rchar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* rd */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* recursionlimit */
+	{ roff_unsupp, NULL, NULL, 0 },  /* return */
+	{ roff_unsupp, NULL, NULL, 0 },  /* rfschar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* rhang */
+	{ roff_rm, NULL, NULL, 0 },  /* rm */
+	{ roff_rn, NULL, NULL, 0 },  /* rn */
+	{ roff_unsupp, NULL, NULL, 0 },  /* rnn */
+	{ roff_rr, NULL, NULL, 0 },  /* rr */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* rs */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* rt */
+	{ roff_unsupp, NULL, NULL, 0 },  /* schar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* sentchar */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* shc */
+	{ roff_unsupp, NULL, NULL, 0 },  /* shift */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* sizes */
+	{ roff_so, NULL, NULL, 0 },  /* so */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* spacewidth */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* special */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* spreadwarn */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ss */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* sty */
+	{ roff_unsupp, NULL, NULL, 0 },  /* substring */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* sv */
+	{ roff_insec, NULL, NULL, 0 },  /* sy */
+	{ roff_T_, NULL, NULL, 0 },  /* T& */
+	{ roff_unsupp, NULL, NULL, 0 },  /* tc */
+	{ roff_TE, NULL, NULL, 0 },  /* TE */
+	{ roff_Dd, NULL, NULL, 0 },  /* TH */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* tkf */
+	{ roff_unsupp, NULL, NULL, 0 },  /* tl */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* tm */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* tm1 */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* tmc */
+	{ roff_tr, NULL, NULL, 0 },  /* tr */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* track */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* transchar */
+	{ roff_insec, NULL, NULL, 0 },  /* trf */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* trimat */
+	{ roff_unsupp, NULL, NULL, 0 },  /* trin */
+	{ roff_unsupp, NULL, NULL, 0 },  /* trnt */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* troff */
+	{ roff_TS, NULL, NULL, 0 },  /* TS */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* uf */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* ul */
+	{ roff_unsupp, NULL, NULL, 0 },  /* unformat */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* unwatch */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* unwatchn */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* vpt */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* vs */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* warn */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* warnscale */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* watch */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* watchlength */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* watchn */
+	{ roff_unsupp, NULL, NULL, 0 },  /* wh */
+	{ roff_unsupp, NULL, NULL, 0 },  /* while */
+	{ roff_insec, NULL, NULL, 0 },  /* write */
+	{ roff_insec, NULL, NULL, 0 },  /* writec */
+	{ roff_insec, NULL, NULL, 0 },  /* writem */
+	{ roff_line_ignore, NULL, NULL, 0 },  /* xflag */
+	{ roff_cblock, NULL, NULL, 0 },  /* . */
+	{ roff_renamed, NULL, NULL, 0 },
+	{ roff_userdef, NULL, NULL, 0 }
+};
+
+/* Array of injected predefined strings. */
+#define	PREDEFS_MAX	 38
+static	const struct predef predefs[PREDEFS_MAX] = {
+#include "predefs.in"
+};
+
+static	int	 roffce_lines;	/* number of input lines to center */
+static	struct roff_node *roffce_node;  /* active request */
+static	int	 roffit_lines;  /* number of lines to delay */
+static	char	*roffit_macro;  /* nil-terminated macro line */
+
+
+/* --- request table ------------------------------------------------------ */
+
+struct ohash *
+roffhash_alloc(enum roff_tok mintok, enum roff_tok maxtok)
+{
+	struct ohash	*htab;
+	struct roffreq	*req;
+	enum roff_tok	 tok;
+	size_t		 sz;
+	unsigned int	 slot;
+
+	htab = mandoc_malloc(sizeof(*htab));
+	mandoc_ohash_init(htab, 8, offsetof(struct roffreq, name));
+
+	for (tok = mintok; tok < maxtok; tok++) {
+		if (roff_name[tok] == NULL)
+			continue;
+		sz = strlen(roff_name[tok]);
+		req = mandoc_malloc(sizeof(*req) + sz + 1);
+		req->tok = tok;
+		memcpy(req->name, roff_name[tok], sz + 1);
+		slot = ohash_qlookup(htab, req->name);
+		ohash_insert(htab, slot, req);
+	}
+	return htab;
+}
+
+void
+roffhash_free(struct ohash *htab)
+{
+	struct roffreq	*req;
+	unsigned int	 slot;
+
+	if (htab == NULL)
+		return;
+	for (req = ohash_first(htab, &slot); req != NULL;
+	     req = ohash_next(htab, &slot))
+		free(req);
+	ohash_delete(htab);
+	free(htab);
+}
+
+enum roff_tok
+roffhash_find(struct ohash *htab, const char *name, size_t sz)
+{
+	struct roffreq	*req;
+	const char	*end;
+
+	if (sz) {
+		end = name + sz;
+		req = ohash_find(htab, ohash_qlookupi(htab, name, &end));
+	} else
+		req = ohash_find(htab, ohash_qlookup(htab, name));
+	return req == NULL ? TOKEN_NONE : req->tok;
+}
+
+/* --- stack of request blocks -------------------------------------------- */
+
+/*
+ * Pop the current node off of the stack of roff instructions currently
+ * pending.
+ */
+static void
+roffnode_pop(struct roff *r)
+{
+	struct roffnode	*p;
+
+	assert(r->last);
+	p = r->last;
+
+	r->last = r->last->parent;
+	free(p->name);
+	free(p->end);
+	free(p);
+}
+
+/*
+ * Push a roff node onto the instruction stack.  This must later be
+ * removed with roffnode_pop().
+ */
+static void
+roffnode_push(struct roff *r, enum roff_tok tok, const char *name,
+		int line, int col)
+{
+	struct roffnode	*p;
+
+	p = mandoc_calloc(1, sizeof(struct roffnode));
+	p->tok = tok;
+	if (name)
+		p->name = mandoc_strdup(name);
+	p->parent = r->last;
+	p->line = line;
+	p->col = col;
+	p->rule = p->parent ? p->parent->rule : 0;
+
+	r->last = p;
+}
+
+/* --- roff parser state data management ---------------------------------- */
+
+static void
+roff_free1(struct roff *r)
+{
+	struct tbl_node	*tbl;
+	int		 i;
+
+	while (NULL != (tbl = r->first_tbl)) {
+		r->first_tbl = tbl->next;
+		tbl_free(tbl);
+	}
+	r->first_tbl = r->last_tbl = r->tbl = NULL;
+
+	if (r->last_eqn != NULL)
+		eqn_free(r->last_eqn);
+	r->last_eqn = r->eqn = NULL;
+
+	while (r->last)
+		roffnode_pop(r);
+
+	free (r->rstack);
+	r->rstack = NULL;
+	r->rstacksz = 0;
+	r->rstackpos = -1;
+
+	roff_freereg(r->regtab);
+	r->regtab = NULL;
+
+	roff_freestr(r->strtab);
+	roff_freestr(r->rentab);
+	roff_freestr(r->xmbtab);
+	r->strtab = r->rentab = r->xmbtab = NULL;
+
+	if (r->xtab)
+		for (i = 0; i < 128; i++)
+			free(r->xtab[i].p);
+	free(r->xtab);
+	r->xtab = NULL;
+}
+
+void
+roff_reset(struct roff *r)
+{
+	roff_free1(r);
+	r->format = r->options & (MPARSE_MDOC | MPARSE_MAN);
+	r->control = '\0';
+	r->escape = '\\';
+	roffce_lines = 0;
+	roffce_node = NULL;
+	roffit_lines = 0;
+	roffit_macro = NULL;
+}
+
+void
+roff_free(struct roff *r)
+{
+	roff_free1(r);
+	roffhash_free(r->reqtab);
+	free(r);
+}
+
+struct roff *
+roff_alloc(struct mparse *parse, int options)
+{
+	struct roff	*r;
+
+	r = mandoc_calloc(1, sizeof(struct roff));
+	r->parse = parse;
+	r->reqtab = roffhash_alloc(0, ROFF_USERDEF);
+	r->options = options;
+	r->format = options & (MPARSE_MDOC | MPARSE_MAN);
+	r->rstackpos = -1;
+	r->escape = '\\';
+	return r;
+}
+
+/* --- syntax tree state data management ---------------------------------- */
+
+static void
+roff_man_free1(struct roff_man *man)
+{
+
+	if (man->first != NULL)
+		roff_node_delete(man, man->first);
+	free(man->meta.msec);
+	free(man->meta.vol);
+	free(man->meta.os);
+	free(man->meta.arch);
+	free(man->meta.title);
+	free(man->meta.name);
+	free(man->meta.date);
+}
+
+static void
+roff_man_alloc1(struct roff_man *man)
+{
+
+	memset(&man->meta, 0, sizeof(man->meta));
+	man->first = mandoc_calloc(1, sizeof(*man->first));
+	man->first->type = ROFFT_ROOT;
+	man->last = man->first;
+	man->last_es = NULL;
+	man->flags = 0;
+	man->macroset = MACROSET_NONE;
+	man->lastsec = man->lastnamed = SEC_NONE;
+	man->next = ROFF_NEXT_CHILD;
+}
+
+void
+roff_man_reset(struct roff_man *man)
+{
+
+	roff_man_free1(man);
+	roff_man_alloc1(man);
+}
+
+void
+roff_man_free(struct roff_man *man)
+{
+
+	roff_man_free1(man);
+	free(man);
+}
+
+struct roff_man *
+roff_man_alloc(struct roff *roff, struct mparse *parse,
+	const char *os_s, int quick)
+{
+	struct roff_man *man;
+
+	man = mandoc_calloc(1, sizeof(*man));
+	man->parse = parse;
+	man->roff = roff;
+	man->os_s = os_s;
+	man->quick = quick;
+	roff_man_alloc1(man);
+	roff->man = man;
+	return man;
+}
+
+/* --- syntax tree handling ----------------------------------------------- */
+
+struct roff_node *
+roff_node_alloc(struct roff_man *man, int line, int pos,
+	enum roff_type type, int tok)
+{
+	struct roff_node	*n;
+
+	n = mandoc_calloc(1, sizeof(*n));
+	n->line = line;
+	n->pos = pos;
+	n->tok = tok;
+	n->type = type;
+	n->sec = man->lastsec;
+
+	if (man->flags & MDOC_SYNOPSIS)
+		n->flags |= NODE_SYNPRETTY;
+	else
+		n->flags &= ~NODE_SYNPRETTY;
+	if (man->flags & MDOC_NEWLINE)
+		n->flags |= NODE_LINE;
+	man->flags &= ~MDOC_NEWLINE;
+
+	return n;
+}
+
+void
+roff_node_append(struct roff_man *man, struct roff_node *n)
+{
+
+	switch (man->next) {
+	case ROFF_NEXT_SIBLING:
+		if (man->last->next != NULL) {
+			n->next = man->last->next;
+			man->last->next->prev = n;
+		} else
+			man->last->parent->last = n;
+		man->last->next = n;
+		n->prev = man->last;
+		n->parent = man->last->parent;
+		break;
+	case ROFF_NEXT_CHILD:
+		if (man->last->child != NULL) {
+			n->next = man->last->child;
+			man->last->child->prev = n;
+		} else
+			man->last->last = n;
+		man->last->child = n;
+		n->parent = man->last;
+		break;
+	default:
+		abort();
+	}
+	man->last = n;
+
+	switch (n->type) {
+	case ROFFT_HEAD:
+		n->parent->head = n;
+		break;
+	case ROFFT_BODY:
+		if (n->end != ENDBODY_NOT)
+			return;
+		n->parent->body = n;
+		break;
+	case ROFFT_TAIL:
+		n->parent->tail = n;
+		break;
+	default:
+		return;
+	}
+
+	/*
+	 * Copy over the normalised-data pointer of our parent.  Not
+	 * everybody has one, but copying a null pointer is fine.
+	 */
+
+	n->norm = n->parent->norm;
+	assert(n->parent->type == ROFFT_BLOCK);
+}
+
+void
+roff_word_alloc(struct roff_man *man, int line, int pos, const char *word)
+{
+	struct roff_node	*n;
+
+	n = roff_node_alloc(man, line, pos, ROFFT_TEXT, TOKEN_NONE);
+	n->string = roff_strdup(man->roff, word);
+	roff_node_append(man, n);
+	n->flags |= NODE_VALID | NODE_ENDED;
+	man->next = ROFF_NEXT_SIBLING;
+}
+
+void
+roff_word_append(struct roff_man *man, const char *word)
+{
+	struct roff_node	*n;
+	char			*addstr, *newstr;
+
+	n = man->last;
+	addstr = roff_strdup(man->roff, word);
+	mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
+	free(addstr);
+	free(n->string);
+	n->string = newstr;
+	man->next = ROFF_NEXT_SIBLING;
+}
+
+void
+roff_elem_alloc(struct roff_man *man, int line, int pos, int tok)
+{
+	struct roff_node	*n;
+
+	n = roff_node_alloc(man, line, pos, ROFFT_ELEM, tok);
+	roff_node_append(man, n);
+	man->next = ROFF_NEXT_CHILD;
+}
+
+struct roff_node *
+roff_block_alloc(struct roff_man *man, int line, int pos, int tok)
+{
+	struct roff_node	*n;
+
+	n = roff_node_alloc(man, line, pos, ROFFT_BLOCK, tok);
+	roff_node_append(man, n);
+	man->next = ROFF_NEXT_CHILD;
+	return n;
+}
+
+struct roff_node *
+roff_head_alloc(struct roff_man *man, int line, int pos, int tok)
+{
+	struct roff_node	*n;
+
+	n = roff_node_alloc(man, line, pos, ROFFT_HEAD, tok);
+	roff_node_append(man, n);
+	man->next = ROFF_NEXT_CHILD;
+	return n;
+}
+
+struct roff_node *
+roff_body_alloc(struct roff_man *man, int line, int pos, int tok)
+{
+	struct roff_node	*n;
+
+	n = roff_node_alloc(man, line, pos, ROFFT_BODY, tok);
+	roff_node_append(man, n);
+	man->next = ROFF_NEXT_CHILD;
+	return n;
+}
+
+static void
+roff_addtbl(struct roff_man *man, struct tbl_node *tbl)
+{
+	struct roff_node	*n;
+	const struct tbl_span	*span;
+
+	if (man->macroset == MACROSET_MAN)
+		man_breakscope(man, ROFF_TS);
+	while ((span = tbl_span(tbl)) != NULL) {
+		n = roff_node_alloc(man, tbl->line, 0, ROFFT_TBL, TOKEN_NONE);
+		n->span = span;
+		roff_node_append(man, n);
+		n->flags |= NODE_VALID | NODE_ENDED;
+		man->next = ROFF_NEXT_SIBLING;
+	}
+}
+
+void
+roff_node_unlink(struct roff_man *man, struct roff_node *n)
+{
+
+	/* Adjust siblings. */
+
+	if (n->prev)
+		n->prev->next = n->next;
+	if (n->next)
+		n->next->prev = n->prev;
+
+	/* Adjust parent. */
+
+	if (n->parent != NULL) {
+		if (n->parent->child == n)
+			n->parent->child = n->next;
+		if (n->parent->last == n)
+			n->parent->last = n->prev;
+	}
+
+	/* Adjust parse point. */
+
+	if (man == NULL)
+		return;
+	if (man->last == n) {
+		if (n->prev == NULL) {
+			man->last = n->parent;
+			man->next = ROFF_NEXT_CHILD;
+		} else {
+			man->last = n->prev;
+			man->next = ROFF_NEXT_SIBLING;
+		}
+	}
+	if (man->first == n)
+		man->first = NULL;
+}
+
+void
+roff_node_free(struct roff_node *n)
+{
+
+	if (n->args != NULL)
+		mdoc_argv_free(n->args);
+	if (n->type == ROFFT_BLOCK || n->type == ROFFT_ELEM)
+		free(n->norm);
+	if (n->eqn != NULL)
+		eqn_box_free(n->eqn);
+	free(n->string);
+	free(n);
+}
+
+void
+roff_node_delete(struct roff_man *man, struct roff_node *n)
+{
+
+	while (n->child != NULL)
+		roff_node_delete(man, n->child);
+	roff_node_unlink(man, n);
+	roff_node_free(n);
+}
+
+void
+deroff(char **dest, const struct roff_node *n)
+{
+	char	*cp;
+	size_t	 sz;
+
+	if (n->type != ROFFT_TEXT) {
+		for (n = n->child; n != NULL; n = n->next)
+			deroff(dest, n);
+		return;
+	}
+
+	/* Skip leading whitespace. */
+
+	for (cp = n->string; *cp != '\0'; cp++) {
+		if (cp[0] == '\\' && cp[1] != '\0' &&
+		    strchr(" %&0^|~", cp[1]) != NULL)
+			cp++;
+		else if ( ! isspace((unsigned char)*cp))
+			break;
+	}
+
+	/* Skip trailing backslash. */
+
+	sz = strlen(cp);
+	if (sz > 0 && cp[sz - 1] == '\\')
+		sz--;
+
+	/* Skip trailing whitespace. */
+
+	for (; sz; sz--)
+		if ( ! isspace((unsigned char)cp[sz-1]))
+			break;
+
+	/* Skip empty strings. */
+
+	if (sz == 0)
+		return;
+
+	if (*dest == NULL) {
+		*dest = mandoc_strndup(cp, sz);
+		return;
+	}
+
+	mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
+	free(*dest);
+	*dest = cp;
+}
+
+/* --- main functions of the roff parser ---------------------------------- */
+
+/*
+ * In the current line, expand escape sequences that tend to get
+ * used in numerical expressions and conditional requests.
+ * Also check the syntax of the remaining escape sequences.
+ */
+static enum rofferr
+roff_res(struct roff *r, struct buf *buf, int ln, int pos)
+{
+	char		 ubuf[24]; /* buffer to print the number */
+	const char	*start;	/* start of the string to process */
+	char		*stesc;	/* start of an escape sequence ('\\') */
+	const char	*stnam;	/* start of the name, after "[(*" */
+	const char	*cp;	/* end of the name, e.g. before ']' */
+	const char	*res;	/* the string to be substituted */
+	char		*nbuf;	/* new buffer to copy buf->buf to */
+	size_t		 maxl;  /* expected length of the escape name */
+	size_t		 naml;	/* actual length of the escape name */
+	enum mandoc_esc	 esc;	/* type of the escape sequence */
+	int		 inaml;	/* length returned from mandoc_escape() */
+	int		 expand_count;	/* to avoid infinite loops */
+	int		 npos;	/* position in numeric expression */
+	int		 arg_complete; /* argument not interrupted by eol */
+	int		 done;	/* no more input available */
+	int		 deftype; /* type of definition to paste */
+	int		 rcsid;	/* kind of RCS id seen */
+	char		 term;	/* character terminating the escape */
+
+	/* Search forward for comments. */
+
+	done = 0;
+	start = buf->buf + pos;
+	for (stesc = buf->buf + pos; *stesc != '\0'; stesc++) {
+		if (stesc[0] != r->escape || stesc[1] == '\0')
+			continue;
+		stesc++;
+		if (*stesc != '"' && *stesc != '#')
+			continue;
+
+		/* Comment found, look for RCS id. */
+
+		rcsid = 0;
+		if ((cp = strstr(stesc, "$" "OpenBSD")) != NULL) {
+			rcsid = 1 << MANDOC_OS_OPENBSD;
+			cp += 8;
+		} else if ((cp = strstr(stesc, "$" "NetBSD")) != NULL) {
+			rcsid = 1 << MANDOC_OS_NETBSD;
+			cp += 7;
+		}
+		if (cp != NULL &&
+		    isalnum((unsigned char)*cp) == 0 &&
+		    strchr(cp, '$') != NULL) {
+			if (r->man->meta.rcsids & rcsid)
+				mandoc_msg(MANDOCERR_RCS_REP, r->parse,
+				    ln, stesc + 1 - buf->buf, stesc + 1);
+			r->man->meta.rcsids |= rcsid;
+		}
+
+		/* Handle trailing whitespace. */
+
+		cp = strchr(stesc--, '\0') - 1;
+		if (*cp == '\n') {
+			done = 1;
+			cp--;
+		}
+		if (*cp == ' ' || *cp == '\t')
+			mandoc_msg(MANDOCERR_SPACE_EOL, r->parse,
+			    ln, cp - buf->buf, NULL);
+		while (stesc > start && stesc[-1] == ' ')
+			stesc--;
+		*stesc = '\0';
+		break;
+	}
+	if (stesc == start)
+		return ROFF_CONT;
+	stesc--;
+
+	/* Notice the end of the input. */
+
+	if (*stesc == '\n') {
+		*stesc-- = '\0';
+		done = 1;
+	}
+
+	expand_count = 0;
+	while (stesc >= start) {
+
+		/* Search backwards for the next backslash. */
+
+		if (*stesc != r->escape) {
+			if (*stesc == '\\') {
+				*stesc = '\0';
+				buf->sz = mandoc_asprintf(&nbuf, "%s\\e%s",
+				    buf->buf, stesc + 1) + 1;
+				start = nbuf + pos;
+				stesc = nbuf + (stesc - buf->buf);
+				free(buf->buf);
+				buf->buf = nbuf;
+			}
+			stesc--;
+			continue;
+		}
+
+		/* If it is escaped, skip it. */
+
+		for (cp = stesc - 1; cp >= start; cp--)
+			if (*cp != r->escape)
+				break;
+
+		if ((stesc - cp) % 2 == 0) {
+			while (stesc > cp)
+				*stesc-- = '\\';
+			continue;
+		} else if (stesc[1] != '\0') {
+			*stesc = '\\';
+		} else {
+			*stesc-- = '\0';
+			if (done)
+				continue;
+			else
+				return ROFF_APPEND;
+		}
+
+		/* Decide whether to expand or to check only. */
+
+		term = '\0';
+		cp = stesc + 1;
+		switch (*cp) {
+		case '*':
+			res = NULL;
+			break;
+		case 'B':
+		case 'w':
+			term = cp[1];
+			/* FALLTHROUGH */
+		case 'n':
+			res = ubuf;
+			break;
+		default:
+			esc = mandoc_escape(&cp, &stnam, &inaml);
+			if (esc == ESCAPE_ERROR ||
+			    (esc == ESCAPE_SPECIAL &&
+			     mchars_spec2cp(stnam, inaml) < 0))
+				mandoc_vmsg(MANDOCERR_ESC_BAD,
+				    r->parse, ln, (int)(stesc - buf->buf),
+				    "%.*s", (int)(cp - stesc), stesc);
+			stesc--;
+			continue;
+		}
+
+		if (EXPAND_LIMIT < ++expand_count) {
+			mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,
+			    ln, (int)(stesc - buf->buf), NULL);
+			return ROFF_IGN;
+		}
+
+		/*
+		 * The third character decides the length
+		 * of the name of the string or register.
+		 * Save a pointer to the name.
+		 */
+
+		if (term == '\0') {
+			switch (*++cp) {
+			case '\0':
+				maxl = 0;
+				break;
+			case '(':
+				cp++;
+				maxl = 2;
+				break;
+			case '[':
+				cp++;
+				term = ']';
+				maxl = 0;
+				break;
+			default:
+				maxl = 1;
+				break;
+			}
+		} else {
+			cp += 2;
+			maxl = 0;
+		}
+		stnam = cp;
+
+		/* Advance to the end of the name. */
+
+		naml = 0;
+		arg_complete = 1;
+		while (maxl == 0 || naml < maxl) {
+			if (*cp == '\0') {
+				mandoc_msg(MANDOCERR_ESC_BAD, r->parse,
+				    ln, (int)(stesc - buf->buf), stesc);
+				arg_complete = 0;
+				break;
+			}
+			if (maxl == 0 && *cp == term) {
+				cp++;
+				break;
+			}
+			if (*cp++ != '\\' || stesc[1] != 'w') {
+				naml++;
+				continue;
+			}
+			switch (mandoc_escape(&cp, NULL, NULL)) {
+			case ESCAPE_SPECIAL:
+			case ESCAPE_UNICODE:
+			case ESCAPE_NUMBERED:
+			case ESCAPE_OVERSTRIKE:
+				naml++;
+				break;
+			default:
+				break;
+			}
+		}
+
+		/*
+		 * Retrieve the replacement string; if it is
+		 * undefined, resume searching for escapes.
+		 */
+
+		switch (stesc[1]) {
+		case '*':
+			if (arg_complete) {
+				deftype = ROFFDEF_USER | ROFFDEF_PRE;
+				res = roff_getstrn(r, stnam, naml, &deftype);
+			}
+			break;
+		case 'B':
+			npos = 0;
+			ubuf[0] = arg_complete &&
+			    roff_evalnum(r, ln, stnam, &npos,
+			      NULL, ROFFNUM_SCALE) &&
+			    stnam + npos + 1 == cp ? '1' : '0';
+			ubuf[1] = '\0';
+			break;
+		case 'n':
+			if (arg_complete)
+				(void)snprintf(ubuf, sizeof(ubuf), "%d",
+				    roff_getregn(r, stnam, naml));
+			else
+				ubuf[0] = '\0';
+			break;
+		case 'w':
+			/* use even incomplete args */
+			(void)snprintf(ubuf, sizeof(ubuf), "%d",
+			    24 * (int)naml);
+			break;
+		}
+
+		if (res == NULL) {
+			mandoc_vmsg(MANDOCERR_STR_UNDEF,
+			    r->parse, ln, (int)(stesc - buf->buf),
+			    "%.*s", (int)naml, stnam);
+			res = "";
+		} else if (buf->sz + strlen(res) > SHRT_MAX) {
+			mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,
+			    ln, (int)(stesc - buf->buf), NULL);
+			return ROFF_IGN;
+		}
+
+		/* Replace the escape sequence by the string. */
+
+		*stesc = '\0';
+		buf->sz = mandoc_asprintf(&nbuf, "%s%s%s",
+		    buf->buf, res, cp) + 1;
+
+		/* Prepare for the next replacement. */
+
+		start = nbuf + pos;
+		stesc = nbuf + (stesc - buf->buf) + strlen(res);
+		free(buf->buf);
+		buf->buf = nbuf;
+	}
+	return ROFF_CONT;
+}
+
+/*
+ * Process text streams.
+ */
+static enum rofferr
+roff_parsetext(struct roff *r, struct buf *buf, int pos, int *offs)
+{
+	size_t		 sz;
+	const char	*start;
+	char		*p;
+	int		 isz;
+	enum mandoc_esc	 esc;
+
+	/* Spring the input line trap. */
+
+	if (roffit_lines == 1) {
+		isz = mandoc_asprintf(&p, "%s\n.%s", buf->buf, roffit_macro);
+		free(buf->buf);
+		buf->buf = p;
+		buf->sz = isz + 1;
+		*offs = 0;
+		free(roffit_macro);
+		roffit_lines = 0;
+		return ROFF_REPARSE;
+	} else if (roffit_lines > 1)
+		--roffit_lines;
+
+	if (roffce_node != NULL && buf->buf[pos] != '\0') {
+		if (roffce_lines < 1) {
+			r->man->last = roffce_node;
+			r->man->next = ROFF_NEXT_SIBLING;
+			roffce_lines = 0;
+			roffce_node = NULL;
+		} else
+			roffce_lines--;
+	}
+
+	/* Convert all breakable hyphens into ASCII_HYPH. */
+
+	start = p = buf->buf + pos;
+
+	while (*p != '\0') {
+		sz = strcspn(p, "-\\");
+		p += sz;
+
+		if (*p == '\0')
+			break;
+
+		if (*p == '\\') {
+			/* Skip over escapes. */
+			p++;
+			esc = mandoc_escape((const char **)&p, NULL, NULL);
+			if (esc == ESCAPE_ERROR)
+				break;
+			while (*p == '-')
+				p++;
+			continue;
+		} else if (p == start) {
+			p++;
+			continue;
+		}
+
+		if (isalpha((unsigned char)p[-1]) &&
+		    isalpha((unsigned char)p[1]))
+			*p = ASCII_HYPH;
+		p++;
+	}
+	return ROFF_CONT;
+}
+
+enum rofferr
+roff_parseln(struct roff *r, int ln, struct buf *buf, int *offs)
+{
+	enum roff_tok	 t;
+	enum rofferr	 e;
+	int		 pos;	/* parse point */
+	int		 spos;	/* saved parse point for messages */
+	int		 ppos;	/* original offset in buf->buf */
+	int		 ctl;	/* macro line (boolean) */
+
+	ppos = pos = *offs;
+
+	/* Handle in-line equation delimiters. */
+
+	if (r->tbl == NULL &&
+	    r->last_eqn != NULL && r->last_eqn->delim &&
+	    (r->eqn == NULL || r->eqn_inline)) {
+		e = roff_eqndelim(r, buf, pos);
+		if (e == ROFF_REPARSE)
+			return e;
+		assert(e == ROFF_CONT);
+	}
+
+	/* Expand some escape sequences. */
+
+	e = roff_res(r, buf, ln, pos);
+	if (e == ROFF_IGN || e == ROFF_APPEND)
+		return e;
+	assert(e == ROFF_CONT);
+
+	ctl = roff_getcontrol(r, buf->buf, &pos);
+
+	/*
+	 * First, if a scope is open and we're not a macro, pass the
+	 * text through the macro's filter.
+	 * Equations process all content themselves.
+	 * Tables process almost all content themselves, but we want
+	 * to warn about macros before passing it there.
+	 */
+
+	if (r->last != NULL && ! ctl) {
+		t = r->last->tok;
+		e = (*roffs[t].text)(r, t, buf, ln, pos, pos, offs);
+		if (e == ROFF_IGN)
+			return e;
+		assert(e == ROFF_CONT);
+	}
+	if (r->eqn != NULL && strncmp(buf->buf + ppos, ".EN", 3)) {
+		eqn_read(r->eqn, buf->buf + ppos);
+		return ROFF_IGN;
+	}
+	if (r->tbl != NULL && (ctl == 0 || buf->buf[pos] == '\0')) {
+		tbl_read(r->tbl, ln, buf->buf, ppos);
+		roff_addtbl(r->man, r->tbl);
+		return ROFF_IGN;
+	}
+	if ( ! ctl)
+		return roff_parsetext(r, buf, pos, offs);
+
+	/* Skip empty request lines. */
+
+	if (buf->buf[pos] == '"') {
+		mandoc_msg(MANDOCERR_COMMENT_BAD, r->parse,
+		    ln, pos, NULL);
+		return ROFF_IGN;
+	} else if (buf->buf[pos] == '\0')
+		return ROFF_IGN;
+
+	/*
+	 * If a scope is open, go to the child handler for that macro,
+	 * as it may want to preprocess before doing anything with it.
+	 * Don't do so if an equation is open.
+	 */
+
+	if (r->last) {
+		t = r->last->tok;
+		return (*roffs[t].sub)(r, t, buf, ln, ppos, pos, offs);
+	}
+
+	/* No scope is open.  This is a new request or macro. */
+
+	spos = pos;
+	t = roff_parse(r, buf->buf, &pos, ln, ppos);
+
+	/* Tables ignore most macros. */
+
+	if (r->tbl != NULL && (t == TOKEN_NONE || t == ROFF_TS ||
+	    t == ROFF_br || t == ROFF_ce || t == ROFF_rj || t == ROFF_sp)) {
+		mandoc_msg(MANDOCERR_TBLMACRO, r->parse,
+		    ln, pos, buf->buf + spos);
+		if (t != TOKEN_NONE)
+			return ROFF_IGN;
+		while (buf->buf[pos] != '\0' && buf->buf[pos] != ' ')
+			pos++;
+		while (buf->buf[pos] == ' ')
+			pos++;
+		tbl_read(r->tbl, ln, buf->buf, pos);
+		roff_addtbl(r->man, r->tbl);
+		return ROFF_IGN;
+	}
+
+	/* For now, let high level macros abort .ce mode. */
+
+	if (ctl && roffce_node != NULL &&
+	    (t == TOKEN_NONE || t == ROFF_Dd || t == ROFF_EQ ||
+	     t == ROFF_TH || t == ROFF_TS)) {
+		r->man->last = roffce_node;
+		r->man->next = ROFF_NEXT_SIBLING;
+		roffce_lines = 0;
+		roffce_node = NULL;
+	}
+
+	/*
+	 * This is neither a roff request nor a user-defined macro.
+	 * Let the standard macro set parsers handle it.
+	 */
+
+	if (t == TOKEN_NONE)
+		return ROFF_CONT;
+
+	/* Execute a roff request or a user defined macro. */
+
+	return (*roffs[t].proc)(r, t, buf, ln, spos, pos, offs);
+}
+
+void
+roff_endparse(struct roff *r)
+{
+	if (r->last != NULL)
+		mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
+		    r->last->line, r->last->col,
+		    roff_name[r->last->tok]);
+
+	if (r->eqn != NULL) {
+		mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
+		    r->eqn->node->line, r->eqn->node->pos, "EQ");
+		eqn_parse(r->eqn);
+		r->eqn = NULL;
+	}
+
+	if (r->tbl != NULL) {
+		mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
+		    r->tbl->line, r->tbl->pos, "TS");
+		tbl_end(r->tbl);
+		r->tbl = NULL;
+	}
+}
+
+/*
+ * Parse a roff node's type from the input buffer.  This must be in the
+ * form of ".foo xxx" in the usual way.
+ */
+static enum roff_tok
+roff_parse(struct roff *r, char *buf, int *pos, int ln, int ppos)
+{
+	char		*cp;
+	const char	*mac;
+	size_t		 maclen;
+	int		 deftype;
+	enum roff_tok	 t;
+
+	cp = buf + *pos;
+
+	if ('\0' == *cp || '"' == *cp || '\t' == *cp || ' ' == *cp)
+		return TOKEN_NONE;
+
+	mac = cp;
+	maclen = roff_getname(r, &cp, ln, ppos);
+
+	deftype = ROFFDEF_USER | ROFFDEF_REN;
+	r->current_string = roff_getstrn(r, mac, maclen, &deftype);
+	switch (deftype) {
+	case ROFFDEF_USER:
+		t = ROFF_USERDEF;
+		break;
+	case ROFFDEF_REN:
+		t = ROFF_RENAMED;
+		break;
+	default:
+		t = roffhash_find(r->reqtab, mac, maclen);
+		break;
+	}
+	if (t != TOKEN_NONE)
+		*pos = cp - buf;
+	return t;
+}
+
+/* --- handling of request blocks ----------------------------------------- */
+
+static enum rofferr
+roff_cblock(ROFF_ARGS)
+{
+
+	/*
+	 * A block-close `..' should only be invoked as a child of an
+	 * ignore macro, otherwise raise a warning and just ignore it.
+	 */
+
+	if (r->last == NULL) {
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
+		    ln, ppos, "..");
+		return ROFF_IGN;
+	}
+
+	switch (r->last->tok) {
+	case ROFF_am:
+		/* ROFF_am1 is remapped to ROFF_am in roff_block(). */
+	case ROFF_ami:
+	case ROFF_de:
+		/* ROFF_de1 is remapped to ROFF_de in roff_block(). */
+	case ROFF_dei:
+	case ROFF_ig:
+		break;
+	default:
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
+		    ln, ppos, "..");
+		return ROFF_IGN;
+	}
+
+	if (buf->buf[pos] != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
+		    ".. %s", buf->buf + pos);
+
+	roffnode_pop(r);
+	roffnode_cleanscope(r);
+	return ROFF_IGN;
+
+}
+
+static void
+roffnode_cleanscope(struct roff *r)
+{
+
+	while (r->last) {
+		if (--r->last->endspan != 0)
+			break;
+		roffnode_pop(r);
+	}
+}
+
+static void
+roff_ccond(struct roff *r, int ln, int ppos)
+{
+
+	if (NULL == r->last) {
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
+		    ln, ppos, "\\}");
+		return;
+	}
+
+	switch (r->last->tok) {
+	case ROFF_el:
+	case ROFF_ie:
+	case ROFF_if:
+		break;
+	default:
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
+		    ln, ppos, "\\}");
+		return;
+	}
+
+	if (r->last->endspan > -1) {
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
+		    ln, ppos, "\\}");
+		return;
+	}
+
+	roffnode_pop(r);
+	roffnode_cleanscope(r);
+	return;
+}
+
+static enum rofferr
+roff_block(ROFF_ARGS)
+{
+	const char	*name, *value;
+	char		*call, *cp, *iname, *rname;
+	size_t		 csz, namesz, rsz;
+	int		 deftype;
+
+	/* Ignore groff compatibility mode for now. */
+
+	if (tok == ROFF_de1)
+		tok = ROFF_de;
+	else if (tok == ROFF_dei1)
+		tok = ROFF_dei;
+	else if (tok == ROFF_am1)
+		tok = ROFF_am;
+	else if (tok == ROFF_ami1)
+		tok = ROFF_ami;
+
+	/* Parse the macro name argument. */
+
+	cp = buf->buf + pos;
+	if (tok == ROFF_ig) {
+		iname = NULL;
+		namesz = 0;
+	} else {
+		iname = cp;
+		namesz = roff_getname(r, &cp, ln, ppos);
+		iname[namesz] = '\0';
+	}
+
+	/* Resolve the macro name argument if it is indirect. */
+
+	if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {
+		deftype = ROFFDEF_USER;
+		name = roff_getstrn(r, iname, namesz, &deftype);
+		if (name == NULL) {
+			mandoc_vmsg(MANDOCERR_STR_UNDEF,
+			    r->parse, ln, (int)(iname - buf->buf),
+			    "%.*s", (int)namesz, iname);
+			namesz = 0;
+		} else
+			namesz = strlen(name);
+	} else
+		name = iname;
+
+	if (namesz == 0 && tok != ROFF_ig) {
+		mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse,
+		    ln, ppos, roff_name[tok]);
+		return ROFF_IGN;
+	}
+
+	roffnode_push(r, tok, name, ln, ppos);
+
+	/*
+	 * At the beginning of a `de' macro, clear the existing string
+	 * with the same name, if there is one.  New content will be
+	 * appended from roff_block_text() in multiline mode.
+	 */
+
+	if (tok == ROFF_de || tok == ROFF_dei) {
+		roff_setstrn(&r->strtab, name, namesz, "", 0, 0);
+		roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
+	} else if (tok == ROFF_am || tok == ROFF_ami) {
+		deftype = ROFFDEF_ANY;
+		value = roff_getstrn(r, iname, namesz, &deftype);
+		switch (deftype) {  /* Before appending, ... */
+		case ROFFDEF_PRE: /* copy predefined to user-defined. */
+			roff_setstrn(&r->strtab, name, namesz,
+			    value, strlen(value), 0);
+			break;
+		case ROFFDEF_REN: /* call original standard macro. */
+			csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n",
+			    (int)strlen(value), value);
+			roff_setstrn(&r->strtab, name, namesz, call, csz, 0);
+			roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
+			free(call);
+			break;
+		case ROFFDEF_STD:  /* rename and call standard macro. */
+			rsz = mandoc_asprintf(&rname, "__%s_renamed", name);
+			roff_setstrn(&r->rentab, rname, rsz, name, namesz, 0);
+			csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n",
+			    (int)rsz, rname);
+			roff_setstrn(&r->strtab, name, namesz, call, csz, 0);
+			free(call);
+			free(rname);
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (*cp == '\0')
+		return ROFF_IGN;
+
+	/* Get the custom end marker. */
+
+	iname = cp;
+	namesz = roff_getname(r, &cp, ln, ppos);
+
+	/* Resolve the end marker if it is indirect. */
+
+	if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {
+		deftype = ROFFDEF_USER;
+		name = roff_getstrn(r, iname, namesz, &deftype);
+		if (name == NULL) {
+			mandoc_vmsg(MANDOCERR_STR_UNDEF,
+			    r->parse, ln, (int)(iname - buf->buf),
+			    "%.*s", (int)namesz, iname);
+			namesz = 0;
+		} else
+			namesz = strlen(name);
+	} else
+		name = iname;
+
+	if (namesz)
+		r->last->end = mandoc_strndup(name, namesz);
+
+	if (*cp != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,
+		    ln, pos, ".%s ... %s", roff_name[tok], cp);
+
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_block_sub(ROFF_ARGS)
+{
+	enum roff_tok	t;
+	int		i, j;
+
+	/*
+	 * First check whether a custom macro exists at this level.  If
+	 * it does, then check against it.  This is some of groff's
+	 * stranger behaviours.  If we encountered a custom end-scope
+	 * tag and that tag also happens to be a "real" macro, then we
+	 * need to try interpreting it again as a real macro.  If it's
+	 * not, then return ignore.  Else continue.
+	 */
+
+	if (r->last->end) {
+		for (i = pos, j = 0; r->last->end[j]; j++, i++)
+			if (buf->buf[i] != r->last->end[j])
+				break;
+
+		if (r->last->end[j] == '\0' &&
+		    (buf->buf[i] == '\0' ||
+		     buf->buf[i] == ' ' ||
+		     buf->buf[i] == '\t')) {
+			roffnode_pop(r);
+			roffnode_cleanscope(r);
+
+			while (buf->buf[i] == ' ' || buf->buf[i] == '\t')
+				i++;
+
+			pos = i;
+			if (roff_parse(r, buf->buf, &pos, ln, ppos) !=
+			    TOKEN_NONE)
+				return ROFF_RERUN;
+			return ROFF_IGN;
+		}
+	}
+
+	/*
+	 * If we have no custom end-query or lookup failed, then try
+	 * pulling it out of the hashtable.
+	 */
+
+	t = roff_parse(r, buf->buf, &pos, ln, ppos);
+
+	if (t != ROFF_cblock) {
+		if (tok != ROFF_ig)
+			roff_setstr(r, r->last->name, buf->buf + ppos, 2);
+		return ROFF_IGN;
+	}
+
+	return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);
+}
+
+static enum rofferr
+roff_block_text(ROFF_ARGS)
+{
+
+	if (tok != ROFF_ig)
+		roff_setstr(r, r->last->name, buf->buf + pos, 2);
+
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_cond_sub(ROFF_ARGS)
+{
+	enum roff_tok	 t;
+	char		*ep;
+	int		 rr;
+
+	rr = r->last->rule;
+	roffnode_cleanscope(r);
+
+	/*
+	 * If `\}' occurs on a macro line without a preceding macro,
+	 * drop the line completely.
+	 */
+
+	ep = buf->buf + pos;
+	if (ep[0] == '\\' && ep[1] == '}')
+		rr = 0;
+
+	/* Always check for the closing delimiter `\}'. */
+
+	while ((ep = strchr(ep, '\\')) != NULL) {
+		switch (ep[1]) {
+		case '}':
+			memmove(ep, ep + 2, strlen(ep + 2) + 1);
+			roff_ccond(r, ln, ep - buf->buf);
+			break;
+		case '\0':
+			++ep;
+			break;
+		default:
+			ep += 2;
+			break;
+		}
+	}
+
+	/*
+	 * Fully handle known macros when they are structurally
+	 * required or when the conditional evaluated to true.
+	 */
+
+	t = roff_parse(r, buf->buf, &pos, ln, ppos);
+	return t != TOKEN_NONE && (rr || roffs[t].flags & ROFFMAC_STRUCT)
+	    ? (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs) : rr
+	    ? ROFF_CONT : ROFF_IGN;
+}
+
+static enum rofferr
+roff_cond_text(ROFF_ARGS)
+{
+	char		*ep;
+	int		 rr;
+
+	rr = r->last->rule;
+	roffnode_cleanscope(r);
+
+	ep = buf->buf + pos;
+	while ((ep = strchr(ep, '\\')) != NULL) {
+		if (*(++ep) == '}') {
+			*ep = '&';
+			roff_ccond(r, ln, ep - buf->buf - 1);
+		}
+		if (*ep != '\0')
+			++ep;
+	}
+	return rr ? ROFF_CONT : ROFF_IGN;
+}
+
+/* --- handling of numeric and conditional expressions -------------------- */
+
+/*
+ * Parse a single signed integer number.  Stop at the first non-digit.
+ * If there is at least one digit, return success and advance the
+ * parse point, else return failure and let the parse point unchanged.
+ * Ignore overflows, treat them just like the C language.
+ */
+static int
+roff_getnum(const char *v, int *pos, int *res, int flags)
+{
+	int	 myres, scaled, n, p;
+
+	if (NULL == res)
+		res = &myres;
+
+	p = *pos;
+	n = v[p] == '-';
+	if (n || v[p] == '+')
+		p++;
+
+	if (flags & ROFFNUM_WHITE)
+		while (isspace((unsigned char)v[p]))
+			p++;
+
+	for (*res = 0; isdigit((unsigned char)v[p]); p++)
+		*res = 10 * *res + v[p] - '0';
+	if (p == *pos + n)
+		return 0;
+
+	if (n)
+		*res = -*res;
+
+	/* Each number may be followed by one optional scaling unit. */
+
+	switch (v[p]) {
+	case 'f':
+		scaled = *res * 65536;
+		break;
+	case 'i':
+		scaled = *res * 240;
+		break;
+	case 'c':
+		scaled = *res * 240 / 2.54;
+		break;
+	case 'v':
+	case 'P':
+		scaled = *res * 40;
+		break;
+	case 'm':
+	case 'n':
+		scaled = *res * 24;
+		break;
+	case 'p':
+		scaled = *res * 10 / 3;
+		break;
+	case 'u':
+		scaled = *res;
+		break;
+	case 'M':
+		scaled = *res * 6 / 25;
+		break;
+	default:
+		scaled = *res;
+		p--;
+		break;
+	}
+	if (flags & ROFFNUM_SCALE)
+		*res = scaled;
+
+	*pos = p + 1;
+	return 1;
+}
+
+/*
+ * Evaluate a string comparison condition.
+ * The first character is the delimiter.
+ * Succeed if the string up to its second occurrence
+ * matches the string up to its third occurence.
+ * Advance the cursor after the third occurrence
+ * or lacking that, to the end of the line.
+ */
+static int
+roff_evalstrcond(const char *v, int *pos)
+{
+	const char	*s1, *s2, *s3;
+	int		 match;
+
+	match = 0;
+	s1 = v + *pos;		/* initial delimiter */
+	s2 = s1 + 1;		/* for scanning the first string */
+	s3 = strchr(s2, *s1);	/* for scanning the second string */
+
+	if (NULL == s3)		/* found no middle delimiter */
+		goto out;
+
+	while ('\0' != *++s3) {
+		if (*s2 != *s3) {  /* mismatch */
+			s3 = strchr(s3, *s1);
+			break;
+		}
+		if (*s3 == *s1) {  /* found the final delimiter */
+			match = 1;
+			break;
+		}
+		s2++;
+	}
+
+out:
+	if (NULL == s3)
+		s3 = strchr(s2, '\0');
+	else if (*s3 != '\0')
+		s3++;
+	*pos = s3 - v;
+	return match;
+}
+
+/*
+ * Evaluate an optionally negated single character, numerical,
+ * or string condition.
+ */
+static int
+roff_evalcond(struct roff *r, int ln, char *v, int *pos)
+{
+	char	*cp, *name;
+	size_t	 sz;
+	int	 deftype, number, savepos, istrue, wanttrue;
+
+	if ('!' == v[*pos]) {
+		wanttrue = 0;
+		(*pos)++;
+	} else
+		wanttrue = 1;
+
+	switch (v[*pos]) {
+	case '\0':
+		return 0;
+	case 'n':
+	case 'o':
+		(*pos)++;
+		return wanttrue;
+	case 'c':
+	case 'e':
+	case 't':
+	case 'v':
+		(*pos)++;
+		return !wanttrue;
+	case 'd':
+	case 'r':
+		cp = v + *pos + 1;
+		while (*cp == ' ')
+			cp++;
+		name = cp;
+		sz = roff_getname(r, &cp, ln, cp - v);
+		if (sz == 0)
+			istrue = 0;
+		else if (v[*pos] == 'r')
+			istrue = roff_hasregn(r, name, sz);
+		else {
+			deftype = ROFFDEF_ANY;
+		        roff_getstrn(r, name, sz, &deftype);
+			istrue = !!deftype;
+		}
+		*pos = cp - v;
+		return istrue == wanttrue;
+	default:
+		break;
+	}
+
+	savepos = *pos;
+	if (roff_evalnum(r, ln, v, pos, &number, ROFFNUM_SCALE))
+		return (number > 0) == wanttrue;
+	else if (*pos == savepos)
+		return roff_evalstrcond(v, pos) == wanttrue;
+	else
+		return 0;
+}
+
+static enum rofferr
+roff_line_ignore(ROFF_ARGS)
+{
+
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_insec(ROFF_ARGS)
+{
+
+	mandoc_msg(MANDOCERR_REQ_INSEC, r->parse,
+	    ln, ppos, roff_name[tok]);
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_unsupp(ROFF_ARGS)
+{
+
+	mandoc_msg(MANDOCERR_REQ_UNSUPP, r->parse,
+	    ln, ppos, roff_name[tok]);
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_cond(ROFF_ARGS)
+{
+
+	roffnode_push(r, tok, NULL, ln, ppos);
+
+	/*
+	 * An `.el' has no conditional body: it will consume the value
+	 * of the current rstack entry set in prior `ie' calls or
+	 * defaults to DENY.
+	 *
+	 * If we're not an `el', however, then evaluate the conditional.
+	 */
+
+	r->last->rule = tok == ROFF_el ?
+	    (r->rstackpos < 0 ? 0 : r->rstack[r->rstackpos--]) :
+	    roff_evalcond(r, ln, buf->buf, &pos);
+
+	/*
+	 * An if-else will put the NEGATION of the current evaluated
+	 * conditional into the stack of rules.
+	 */
+
+	if (tok == ROFF_ie) {
+		if (r->rstackpos + 1 == r->rstacksz) {
+			r->rstacksz += 16;
+			r->rstack = mandoc_reallocarray(r->rstack,
+			    r->rstacksz, sizeof(int));
+		}
+		r->rstack[++r->rstackpos] = !r->last->rule;
+	}
+
+	/* If the parent has false as its rule, then so do we. */
+
+	if (r->last->parent && !r->last->parent->rule)
+		r->last->rule = 0;
+
+	/*
+	 * Determine scope.
+	 * If there is nothing on the line after the conditional,
+	 * not even whitespace, use next-line scope.
+	 */
+
+	if (buf->buf[pos] == '\0') {
+		r->last->endspan = 2;
+		goto out;
+	}
+
+	while (buf->buf[pos] == ' ')
+		pos++;
+
+	/* An opening brace requests multiline scope. */
+
+	if (buf->buf[pos] == '\\' && buf->buf[pos + 1] == '{') {
+		r->last->endspan = -1;
+		pos += 2;
+		while (buf->buf[pos] == ' ')
+			pos++;
+		goto out;
+	}
+
+	/*
+	 * Anything else following the conditional causes
+	 * single-line scope.  Warn if the scope contains
+	 * nothing but trailing whitespace.
+	 */
+
+	if (buf->buf[pos] == '\0')
+		mandoc_msg(MANDOCERR_COND_EMPTY, r->parse,
+		    ln, ppos, roff_name[tok]);
+
+	r->last->endspan = 1;
+
+out:
+	*offs = pos;
+	return ROFF_RERUN;
+}
+
+static enum rofferr
+roff_ds(ROFF_ARGS)
+{
+	char		*string;
+	const char	*name;
+	size_t		 namesz;
+
+	/* Ignore groff compatibility mode for now. */
+
+	if (tok == ROFF_ds1)
+		tok = ROFF_ds;
+	else if (tok == ROFF_as1)
+		tok = ROFF_as;
+
+	/*
+	 * The first word is the name of the string.
+	 * If it is empty or terminated by an escape sequence,
+	 * abort the `ds' request without defining anything.
+	 */
+
+	name = string = buf->buf + pos;
+	if (*name == '\0')
+		return ROFF_IGN;
+
+	namesz = roff_getname(r, &string, ln, pos);
+	if (name[namesz] == '\\')
+		return ROFF_IGN;
+
+	/* Read past the initial double-quote, if any. */
+	if (*string == '"')
+		string++;
+
+	/* The rest is the value. */
+	roff_setstrn(&r->strtab, name, namesz, string, strlen(string),
+	    ROFF_as == tok);
+	roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
+	return ROFF_IGN;
+}
+
+/*
+ * Parse a single operator, one or two characters long.
+ * If the operator is recognized, return success and advance the
+ * parse point, else return failure and let the parse point unchanged.
+ */
+static int
+roff_getop(const char *v, int *pos, char *res)
+{
+
+	*res = v[*pos];
+
+	switch (*res) {
+	case '+':
+	case '-':
+	case '*':
+	case '/':
+	case '%':
+	case '&':
+	case ':':
+		break;
+	case '<':
+		switch (v[*pos + 1]) {
+		case '=':
+			*res = 'l';
+			(*pos)++;
+			break;
+		case '>':
+			*res = '!';
+			(*pos)++;
+			break;
+		case '?':
+			*res = 'i';
+			(*pos)++;
+			break;
+		default:
+			break;
+		}
+		break;
+	case '>':
+		switch (v[*pos + 1]) {
+		case '=':
+			*res = 'g';
+			(*pos)++;
+			break;
+		case '?':
+			*res = 'a';
+			(*pos)++;
+			break;
+		default:
+			break;
+		}
+		break;
+	case '=':
+		if ('=' == v[*pos + 1])
+			(*pos)++;
+		break;
+	default:
+		return 0;
+	}
+	(*pos)++;
+
+	return *res;
+}
+
+/*
+ * Evaluate either a parenthesized numeric expression
+ * or a single signed integer number.
+ */
+static int
+roff_evalpar(struct roff *r, int ln,
+	const char *v, int *pos, int *res, int flags)
+{
+
+	if ('(' != v[*pos])
+		return roff_getnum(v, pos, res, flags);
+
+	(*pos)++;
+	if ( ! roff_evalnum(r, ln, v, pos, res, flags | ROFFNUM_WHITE))
+		return 0;
+
+	/*
+	 * Omission of the closing parenthesis
+	 * is an error in validation mode,
+	 * but ignored in evaluation mode.
+	 */
+
+	if (')' == v[*pos])
+		(*pos)++;
+	else if (NULL == res)
+		return 0;
+
+	return 1;
+}
+
+/*
+ * Evaluate a complete numeric expression.
+ * Proceed left to right, there is no concept of precedence.
+ */
+static int
+roff_evalnum(struct roff *r, int ln, const char *v,
+	int *pos, int *res, int flags)
+{
+	int		 mypos, operand2;
+	char		 operator;
+
+	if (NULL == pos) {
+		mypos = 0;
+		pos = &mypos;
+	}
+
+	if (flags & ROFFNUM_WHITE)
+		while (isspace((unsigned char)v[*pos]))
+			(*pos)++;
+
+	if ( ! roff_evalpar(r, ln, v, pos, res, flags))
+		return 0;
+
+	while (1) {
+		if (flags & ROFFNUM_WHITE)
+			while (isspace((unsigned char)v[*pos]))
+				(*pos)++;
+
+		if ( ! roff_getop(v, pos, &operator))
+			break;
+
+		if (flags & ROFFNUM_WHITE)
+			while (isspace((unsigned char)v[*pos]))
+				(*pos)++;
+
+		if ( ! roff_evalpar(r, ln, v, pos, &operand2, flags))
+			return 0;
+
+		if (flags & ROFFNUM_WHITE)
+			while (isspace((unsigned char)v[*pos]))
+				(*pos)++;
+
+		if (NULL == res)
+			continue;
+
+		switch (operator) {
+		case '+':
+			*res += operand2;
+			break;
+		case '-':
+			*res -= operand2;
+			break;
+		case '*':
+			*res *= operand2;
+			break;
+		case '/':
+			if (operand2 == 0) {
+				mandoc_msg(MANDOCERR_DIVZERO,
+					r->parse, ln, *pos, v);
+				*res = 0;
+				break;
+			}
+			*res /= operand2;
+			break;
+		case '%':
+			if (operand2 == 0) {
+				mandoc_msg(MANDOCERR_DIVZERO,
+					r->parse, ln, *pos, v);
+				*res = 0;
+				break;
+			}
+			*res %= operand2;
+			break;
+		case '<':
+			*res = *res < operand2;
+			break;
+		case '>':
+			*res = *res > operand2;
+			break;
+		case 'l':
+			*res = *res <= operand2;
+			break;
+		case 'g':
+			*res = *res >= operand2;
+			break;
+		case '=':
+			*res = *res == operand2;
+			break;
+		case '!':
+			*res = *res != operand2;
+			break;
+		case '&':
+			*res = *res && operand2;
+			break;
+		case ':':
+			*res = *res || operand2;
+			break;
+		case 'i':
+			if (operand2 < *res)
+				*res = operand2;
+			break;
+		case 'a':
+			if (operand2 > *res)
+				*res = operand2;
+			break;
+		default:
+			abort();
+		}
+	}
+	return 1;
+}
+
+/* --- register management ------------------------------------------------ */
+
+void
+roff_setreg(struct roff *r, const char *name, int val, char sign)
+{
+	struct roffreg	*reg;
+
+	/* Search for an existing register with the same name. */
+	reg = r->regtab;
+
+	while (reg && strcmp(name, reg->key.p))
+		reg = reg->next;
+
+	if (NULL == reg) {
+		/* Create a new register. */
+		reg = mandoc_malloc(sizeof(struct roffreg));
+		reg->key.p = mandoc_strdup(name);
+		reg->key.sz = strlen(name);
+		reg->val = 0;
+		reg->next = r->regtab;
+		r->regtab = reg;
+	}
+
+	if ('+' == sign)
+		reg->val += val;
+	else if ('-' == sign)
+		reg->val -= val;
+	else
+		reg->val = val;
+}
+
+/*
+ * Handle some predefined read-only number registers.
+ * For now, return -1 if the requested register is not predefined;
+ * in case a predefined read-only register having the value -1
+ * were to turn up, another special value would have to be chosen.
+ */
+static int
+roff_getregro(const struct roff *r, const char *name)
+{
+
+	switch (*name) {
+	case '$':  /* Number of arguments of the last macro evaluated. */
+		return r->argc;
+	case 'A':  /* ASCII approximation mode is always off. */
+		return 0;
+	case 'g':  /* Groff compatibility mode is always on. */
+		return 1;
+	case 'H':  /* Fixed horizontal resolution. */
+		return 24;
+	case 'j':  /* Always adjust left margin only. */
+		return 0;
+	case 'T':  /* Some output device is always defined. */
+		return 1;
+	case 'V':  /* Fixed vertical resolution. */
+		return 40;
+	default:
+		return -1;
+	}
+}
+
+int
+roff_getreg(const struct roff *r, const char *name)
+{
+	struct roffreg	*reg;
+	int		 val;
+
+	if ('.' == name[0] && '\0' != name[1] && '\0' == name[2]) {
+		val = roff_getregro(r, name + 1);
+		if (-1 != val)
+			return val;
+	}
+
+	for (reg = r->regtab; reg; reg = reg->next)
+		if (0 == strcmp(name, reg->key.p))
+			return reg->val;
+
+	return 0;
+}
+
+static int
+roff_getregn(const struct roff *r, const char *name, size_t len)
+{
+	struct roffreg	*reg;
+	int		 val;
+
+	if ('.' == name[0] && 2 == len) {
+		val = roff_getregro(r, name + 1);
+		if (-1 != val)
+			return val;
+	}
+
+	for (reg = r->regtab; reg; reg = reg->next)
+		if (len == reg->key.sz &&
+		    0 == strncmp(name, reg->key.p, len))
+			return reg->val;
+
+	return 0;
+}
+
+static int
+roff_hasregn(const struct roff *r, const char *name, size_t len)
+{
+	struct roffreg	*reg;
+	int		 val;
+
+	if ('.' == name[0] && 2 == len) {
+		val = roff_getregro(r, name + 1);
+		if (-1 != val)
+			return 1;
+	}
+
+	for (reg = r->regtab; reg; reg = reg->next)
+		if (len == reg->key.sz &&
+		    0 == strncmp(name, reg->key.p, len))
+			return 1;
+
+	return 0;
+}
+
+static void
+roff_freereg(struct roffreg *reg)
+{
+	struct roffreg	*old_reg;
+
+	while (NULL != reg) {
+		free(reg->key.p);
+		old_reg = reg;
+		reg = reg->next;
+		free(old_reg);
+	}
+}
+
+static enum rofferr
+roff_nr(ROFF_ARGS)
+{
+	char		*key, *val;
+	size_t		 keysz;
+	int		 iv;
+	char		 sign;
+
+	key = val = buf->buf + pos;
+	if (*key == '\0')
+		return ROFF_IGN;
+
+	keysz = roff_getname(r, &val, ln, pos);
+	if (key[keysz] == '\\')
+		return ROFF_IGN;
+	key[keysz] = '\0';
+
+	sign = *val;
+	if (sign == '+' || sign == '-')
+		val++;
+
+	if (roff_evalnum(r, ln, val, NULL, &iv, ROFFNUM_SCALE))
+		roff_setreg(r, key, iv, sign);
+
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_rr(ROFF_ARGS)
+{
+	struct roffreg	*reg, **prev;
+	char		*name, *cp;
+	size_t		 namesz;
+
+	name = cp = buf->buf + pos;
+	if (*name == '\0')
+		return ROFF_IGN;
+	namesz = roff_getname(r, &cp, ln, pos);
+	name[namesz] = '\0';
+
+	prev = &r->regtab;
+	while (1) {
+		reg = *prev;
+		if (reg == NULL || !strcmp(name, reg->key.p))
+			break;
+		prev = &reg->next;
+	}
+	if (reg != NULL) {
+		*prev = reg->next;
+		free(reg->key.p);
+		free(reg);
+	}
+	return ROFF_IGN;
+}
+
+/* --- handler functions for roff requests -------------------------------- */
+
+static enum rofferr
+roff_rm(ROFF_ARGS)
+{
+	const char	 *name;
+	char		 *cp;
+	size_t		  namesz;
+
+	cp = buf->buf + pos;
+	while (*cp != '\0') {
+		name = cp;
+		namesz = roff_getname(r, &cp, ln, (int)(cp - buf->buf));
+		roff_setstrn(&r->strtab, name, namesz, NULL, 0, 0);
+		roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
+		if (name[namesz] == '\\')
+			break;
+	}
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_it(ROFF_ARGS)
+{
+	int		 iv;
+
+	/* Parse the number of lines. */
+
+	if ( ! roff_evalnum(r, ln, buf->buf, &pos, &iv, 0)) {
+		mandoc_msg(MANDOCERR_IT_NONUM, r->parse,
+		    ln, ppos, buf->buf + 1);
+		return ROFF_IGN;
+	}
+
+	while (isspace((unsigned char)buf->buf[pos]))
+		pos++;
+
+	/*
+	 * Arm the input line trap.
+	 * Special-casing "an-trap" is an ugly workaround to cope
+	 * with DocBook stupidly fiddling with man(7) internals.
+	 */
+
+	roffit_lines = iv;
+	roffit_macro = mandoc_strdup(iv != 1 ||
+	    strcmp(buf->buf + pos, "an-trap") ?
+	    buf->buf + pos : "br");
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_Dd(ROFF_ARGS)
+{
+	int		 mask;
+	enum roff_tok	 t, te;
+
+	switch (tok) {
+	case ROFF_Dd:
+		tok = MDOC_Dd;
+		te = MDOC_MAX;
+		if (r->format == 0)
+			r->format = MPARSE_MDOC;
+		mask = MPARSE_MDOC | MPARSE_QUICK;
+		break;
+	case ROFF_TH:
+		tok = MAN_TH;
+		te = MAN_MAX;
+		if (r->format == 0)
+			r->format = MPARSE_MAN;
+		mask = MPARSE_QUICK;
+		break;
+	default:
+		abort();
+	}
+	if ((r->options & mask) == 0)
+		for (t = tok; t < te; t++)
+			roff_setstr(r, roff_name[t], NULL, 0);
+	return ROFF_CONT;
+}
+
+static enum rofferr
+roff_TE(ROFF_ARGS)
+{
+	if (r->tbl == NULL) {
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
+		    ln, ppos, "TE");
+		return ROFF_IGN;
+	}
+	if (tbl_end(r->tbl) == 0) {
+		r->tbl = NULL;
+		free(buf->buf);
+		buf->buf = mandoc_strdup(".sp");
+		buf->sz = 4;
+		return ROFF_REPARSE;
+	}
+	r->tbl = NULL;
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_T_(ROFF_ARGS)
+{
+
+	if (NULL == r->tbl)
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
+		    ln, ppos, "T&");
+	else
+		tbl_restart(ln, ppos, r->tbl);
+
+	return ROFF_IGN;
+}
+
+/*
+ * Handle in-line equation delimiters.
+ */
+static enum rofferr
+roff_eqndelim(struct roff *r, struct buf *buf, int pos)
+{
+	char		*cp1, *cp2;
+	const char	*bef_pr, *bef_nl, *mac, *aft_nl, *aft_pr;
+
+	/*
+	 * Outside equations, look for an opening delimiter.
+	 * If we are inside an equation, we already know it is
+	 * in-line, or this function wouldn't have been called;
+	 * so look for a closing delimiter.
+	 */
+
+	cp1 = buf->buf + pos;
+	cp2 = strchr(cp1, r->eqn == NULL ?
+	    r->last_eqn->odelim : r->last_eqn->cdelim);
+	if (cp2 == NULL)
+		return ROFF_CONT;
+
+	*cp2++ = '\0';
+	bef_pr = bef_nl = aft_nl = aft_pr = "";
+
+	/* Handle preceding text, protecting whitespace. */
+
+	if (*buf->buf != '\0') {
+		if (r->eqn == NULL)
+			bef_pr = "\\&";
+		bef_nl = "\n";
+	}
+
+	/*
+	 * Prepare replacing the delimiter with an equation macro
+	 * and drop leading white space from the equation.
+	 */
+
+	if (r->eqn == NULL) {
+		while (*cp2 == ' ')
+			cp2++;
+		mac = ".EQ";
+	} else
+		mac = ".EN";
+
+	/* Handle following text, protecting whitespace. */
+
+	if (*cp2 != '\0') {
+		aft_nl = "\n";
+		if (r->eqn != NULL)
+			aft_pr = "\\&";
+	}
+
+	/* Do the actual replacement. */
+
+	buf->sz = mandoc_asprintf(&cp1, "%s%s%s%s%s%s%s", buf->buf,
+	    bef_pr, bef_nl, mac, aft_nl, aft_pr, cp2) + 1;
+	free(buf->buf);
+	buf->buf = cp1;
+
+	/* Toggle the in-line state of the eqn subsystem. */
+
+	r->eqn_inline = r->eqn == NULL;
+	return ROFF_REPARSE;
+}
+
+static enum rofferr
+roff_EQ(ROFF_ARGS)
+{
+	struct roff_node	*n;
+
+	if (r->man->macroset == MACROSET_MAN)
+		man_breakscope(r->man, ROFF_EQ);
+	n = roff_node_alloc(r->man, ln, ppos, ROFFT_EQN, TOKEN_NONE);
+	if (ln > r->man->last->line)
+		n->flags |= NODE_LINE;
+	n->eqn = mandoc_calloc(1, sizeof(*n->eqn));
+	n->eqn->expectargs = UINT_MAX;
+	roff_node_append(r->man, n);
+	r->man->next = ROFF_NEXT_SIBLING;
+
+	assert(r->eqn == NULL);
+	if (r->last_eqn == NULL)
+		r->last_eqn = eqn_alloc(r->parse);
+	else
+		eqn_reset(r->last_eqn);
+	r->eqn = r->last_eqn;
+	r->eqn->node = n;
+
+	if (buf->buf[pos] != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
+		    ".EQ %s", buf->buf + pos);
+
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_EN(ROFF_ARGS)
+{
+	if (r->eqn != NULL) {
+		eqn_parse(r->eqn);
+		r->eqn = NULL;
+	} else
+		mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, ln, ppos, "EN");
+	if (buf->buf[pos] != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
+		    "EN %s", buf->buf + pos);
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_TS(ROFF_ARGS)
+{
+	if (r->tbl != NULL) {
+		mandoc_msg(MANDOCERR_BLK_BROKEN, r->parse,
+		    ln, ppos, "TS breaks TS");
+		tbl_end(r->tbl);
+	}
+	r->tbl = tbl_alloc(ppos, ln, r->parse);
+	if (r->last_tbl)
+		r->last_tbl->next = r->tbl;
+	else
+		r->first_tbl = r->tbl;
+	r->last_tbl = r->tbl;
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_onearg(ROFF_ARGS)
+{
+	struct roff_node	*n;
+	char			*cp;
+	int			 npos;
+
+	if (r->man->flags & (MAN_BLINE | MAN_ELINE) &&
+	    (tok == ROFF_ce || tok == ROFF_rj || tok == ROFF_sp ||
+	     tok == ROFF_ti))
+		man_breakscope(r->man, tok);
+
+	if (roffce_node != NULL && (tok == ROFF_ce || tok == ROFF_rj)) {
+		r->man->last = roffce_node;
+		r->man->next = ROFF_NEXT_SIBLING;
+	}
+
+	roff_elem_alloc(r->man, ln, ppos, tok);
+	n = r->man->last;
+
+	cp = buf->buf + pos;
+	if (*cp != '\0') {
+		while (*cp != '\0' && *cp != ' ')
+			cp++;
+		while (*cp == ' ')
+			*cp++ = '\0';
+		if (*cp != '\0')
+			mandoc_vmsg(MANDOCERR_ARG_EXCESS,
+			    r->parse, ln, cp - buf->buf,
+			    "%s ... %s", roff_name[tok], cp);
+		roff_word_alloc(r->man, ln, pos, buf->buf + pos);
+	}
+
+	if (tok == ROFF_ce || tok == ROFF_rj) {
+		if (r->man->last->type == ROFFT_ELEM) {
+			roff_word_alloc(r->man, ln, pos, "1");
+			r->man->last->flags |= NODE_NOSRC;
+		}
+		npos = 0;
+		if (roff_evalnum(r, ln, r->man->last->string, &npos,
+		    &roffce_lines, 0) == 0) {
+			mandoc_vmsg(MANDOCERR_CE_NONUM,
+			    r->parse, ln, pos, "ce %s", buf->buf + pos);
+			roffce_lines = 1;
+		}
+		if (roffce_lines < 1) {
+			r->man->last = r->man->last->parent;
+			roffce_node = NULL;
+			roffce_lines = 0;
+		} else
+			roffce_node = r->man->last->parent;
+	} else {
+		n->flags |= NODE_VALID | NODE_ENDED;
+		r->man->last = n;
+	}
+	n->flags |= NODE_LINE;
+	r->man->next = ROFF_NEXT_SIBLING;
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_manyarg(ROFF_ARGS)
+{
+	struct roff_node	*n;
+	char			*sp, *ep;
+
+	roff_elem_alloc(r->man, ln, ppos, tok);
+	n = r->man->last;
+
+	for (sp = ep = buf->buf + pos; *sp != '\0'; sp = ep) {
+		while (*ep != '\0' && *ep != ' ')
+			ep++;
+		while (*ep == ' ')
+			*ep++ = '\0';
+		roff_word_alloc(r->man, ln, sp - buf->buf, sp);
+	}
+
+	n->flags |= NODE_LINE | NODE_VALID | NODE_ENDED;
+	r->man->last = n;
+	r->man->next = ROFF_NEXT_SIBLING;
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_als(ROFF_ARGS)
+{
+	char		*oldn, *newn, *end, *value;
+	size_t		 oldsz, newsz, valsz;
+
+	newn = oldn = buf->buf + pos;
+	if (*newn == '\0')
+		return ROFF_IGN;
+
+	newsz = roff_getname(r, &oldn, ln, pos);
+	if (newn[newsz] == '\\' || *oldn == '\0')
+		return ROFF_IGN;
+
+	end = oldn;
+	oldsz = roff_getname(r, &end, ln, oldn - buf->buf);
+	if (oldsz == 0)
+		return ROFF_IGN;
+
+	valsz = mandoc_asprintf(&value, ".%.*s \\$*\\\"\n",
+	    (int)oldsz, oldn);
+	roff_setstrn(&r->strtab, newn, newsz, value, valsz, 0);
+	roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
+	free(value);
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_br(ROFF_ARGS)
+{
+	if (r->man->flags & (MAN_BLINE | MAN_ELINE))
+		man_breakscope(r->man, ROFF_br);
+	roff_elem_alloc(r->man, ln, ppos, ROFF_br);
+	if (buf->buf[pos] != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
+		    "%s %s", roff_name[tok], buf->buf + pos);
+	r->man->last->flags |= NODE_LINE | NODE_VALID | NODE_ENDED;
+	r->man->next = ROFF_NEXT_SIBLING;
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_cc(ROFF_ARGS)
+{
+	const char	*p;
+
+	p = buf->buf + pos;
+
+	if (*p == '\0' || (r->control = *p++) == '.')
+		r->control = '\0';
+
+	if (*p != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,
+		    ln, p - buf->buf, "cc ... %s", p);
+
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_ec(ROFF_ARGS)
+{
+	const char	*p;
+
+	p = buf->buf + pos;
+	if (*p == '\0')
+		r->escape = '\\';
+	else {
+		r->escape = *p;
+		if (*++p != '\0')
+			mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,
+			    ln, p - buf->buf, "ec ... %s", p);
+	}
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_eo(ROFF_ARGS)
+{
+	r->escape = '\0';
+	if (buf->buf[pos] != '\0')
+		mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse,
+		    ln, pos, "eo %s", buf->buf + pos);
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_tr(ROFF_ARGS)
+{
+	const char	*p, *first, *second;
+	size_t		 fsz, ssz;
+	enum mandoc_esc	 esc;
+
+	p = buf->buf + pos;
+
+	if (*p == '\0') {
+		mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse, ln, ppos, "tr");
+		return ROFF_IGN;
+	}
+
+	while (*p != '\0') {
+		fsz = ssz = 1;
+
+		first = p++;
+		if (*first == '\\') {
+			esc = mandoc_escape(&p, NULL, NULL);
+			if (esc == ESCAPE_ERROR) {
+				mandoc_msg(MANDOCERR_ESC_BAD, r->parse,
+				    ln, (int)(p - buf->buf), first);
+				return ROFF_IGN;
+			}
+			fsz = (size_t)(p - first);
+		}
+
+		second = p++;
+		if (*second == '\\') {
+			esc = mandoc_escape(&p, NULL, NULL);
+			if (esc == ESCAPE_ERROR) {
+				mandoc_msg(MANDOCERR_ESC_BAD, r->parse,
+				    ln, (int)(p - buf->buf), second);
+				return ROFF_IGN;
+			}
+			ssz = (size_t)(p - second);
+		} else if (*second == '\0') {
+			mandoc_vmsg(MANDOCERR_TR_ODD, r->parse,
+			    ln, first - buf->buf, "tr %s", first);
+			second = " ";
+			p--;
+		}
+
+		if (fsz > 1) {
+			roff_setstrn(&r->xmbtab, first, fsz,
+			    second, ssz, 0);
+			continue;
+		}
+
+		if (r->xtab == NULL)
+			r->xtab = mandoc_calloc(128,
+			    sizeof(struct roffstr));
+
+		free(r->xtab[(int)*first].p);
+		r->xtab[(int)*first].p = mandoc_strndup(second, ssz);
+		r->xtab[(int)*first].sz = ssz;
+	}
+
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_rn(ROFF_ARGS)
+{
+	const char	*value;
+	char		*oldn, *newn, *end;
+	size_t		 oldsz, newsz;
+	int		 deftype;
+
+	oldn = newn = buf->buf + pos;
+	if (*oldn == '\0')
+		return ROFF_IGN;
+
+	oldsz = roff_getname(r, &newn, ln, pos);
+	if (oldn[oldsz] == '\\' || *newn == '\0')
+		return ROFF_IGN;
+
+	end = newn;
+	newsz = roff_getname(r, &end, ln, newn - buf->buf);
+	if (newsz == 0)
+		return ROFF_IGN;
+
+	deftype = ROFFDEF_ANY;
+	value = roff_getstrn(r, oldn, oldsz, &deftype);
+	switch (deftype) {
+	case ROFFDEF_USER:
+		roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0);
+		roff_setstrn(&r->strtab, oldn, oldsz, NULL, 0, 0);
+		roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
+		break;
+	case ROFFDEF_PRE:
+		roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0);
+		roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
+		break;
+	case ROFFDEF_REN:
+		roff_setstrn(&r->rentab, newn, newsz, value, strlen(value), 0);
+		roff_setstrn(&r->rentab, oldn, oldsz, NULL, 0, 0);
+		roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
+		break;
+	case ROFFDEF_STD:
+		roff_setstrn(&r->rentab, newn, newsz, oldn, oldsz, 0);
+		roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
+		break;
+	default:
+		roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
+		roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
+		break;
+	}
+	return ROFF_IGN;
+}
+
+static enum rofferr
+roff_so(ROFF_ARGS)
+{
+	char *name, *cp;
+
+	name = buf->buf + pos;
+	mandoc_vmsg(MANDOCERR_SO, r->parse, ln, ppos, "so %s", name);
+
+	/*
+	 * Handle `so'.  Be EXTREMELY careful, as we shouldn't be
+	 * opening anything that's not in our cwd or anything beneath
+	 * it.  Thus, explicitly disallow traversing up the file-system
+	 * or using absolute paths.
+	 */
+
+	if (*name == '/' || strstr(name, "../") || strstr(name, "/..")) {
+		mandoc_vmsg(MANDOCERR_SO_PATH, r->parse, ln, ppos,
+		    ".so %s", name);
+		buf->sz = mandoc_asprintf(&cp,
+		    ".sp\nSee the file %s.\n.sp", name) + 1;
+		free(buf->buf);
+		buf->buf = cp;
+		*offs = 0;
+		return ROFF_REPARSE;
+	}
+
+	*offs = pos;
+	return ROFF_SO;
+}
+
+/* --- user defined strings and macros ------------------------------------ */
+
+static enum rofferr
+roff_userdef(ROFF_ARGS)
+{
+	const char	 *arg[16], *ap;
+	char		 *cp, *n1, *n2;
+	int		  expand_count, i, ib, ie;
+	size_t		  asz, rsz;
+
+	/*
+	 * Collect pointers to macro argument strings
+	 * and NUL-terminate them.
+	 */
+
+	r->argc = 0;
+	cp = buf->buf + pos;
+	for (i = 0; i < 16; i++) {
+		if (*cp == '\0')
+			arg[i] = "";
+		else {
+			arg[i] = mandoc_getarg(r->parse, &cp, ln, &pos);
+			r->argc = i + 1;
+		}
+	}
+
+	/*
+	 * Expand macro arguments.
+	 */
+
+	buf->sz = strlen(r->current_string) + 1;
+	n1 = n2 = cp = mandoc_malloc(buf->sz);
+	memcpy(n1, r->current_string, buf->sz);
+	expand_count = 0;
+	while (*cp != '\0') {
+
+		/* Scan ahead for the next argument invocation. */
+
+		if (*cp++ != '\\')
+			continue;
+		if (*cp++ != '$')
+			continue;
+		if (*cp == '*') {  /* \\$* inserts all arguments */
+			ib = 0;
+			ie = r->argc - 1;
+		} else {  /* \\$1 .. \\$9 insert one argument */
+			ib = ie = *cp - '1';
+			if (ib < 0 || ib > 8)
+				continue;
+		}
+		cp -= 2;
+
+		/*
+		 * Prevent infinite recursion.
+		 */
+
+		if (cp >= n2)
+			expand_count = 1;
+		else if (++expand_count > EXPAND_LIMIT) {
+			mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,
+			    ln, (int)(cp - n1), NULL);
+			free(buf->buf);
+			buf->buf = n1;
+			return ROFF_IGN;
+		}
+
+		/*
+		 * Determine the size of the expanded argument,
+		 * taking escaping of quotes into account.
+		 */
+
+		asz = ie > ib ? ie - ib : 0;  /* for blanks */
+		for (i = ib; i <= ie; i++) {
+			for (ap = arg[i]; *ap != '\0'; ap++) {
+				asz++;
+				if (*ap == '"')
+					asz += 3;
+			}
+		}
+		if (asz != 3) {
+
+			/*
+			 * Determine the size of the rest of the
+			 * unexpanded macro, including the NUL.
+			 */
+
+			rsz = buf->sz - (cp - n1) - 3;
+
+			/*
+			 * When shrinking, move before
+			 * releasing the storage.
+			 */
+
+			if (asz < 3)
+				memmove(cp + asz, cp + 3, rsz);
+
+			/*
+			 * Resize the storage for the macro
+			 * and readjust the parse pointer.
+			 */
+
+			buf->sz += asz - 3;
+			n2 = mandoc_realloc(n1, buf->sz);
+			cp = n2 + (cp - n1);
+			n1 = n2;
+
+			/*
+			 * When growing, make room
+			 * for the expanded argument.
+			 */
+
+			if (asz > 3)
+				memmove(cp + asz, cp + 3, rsz);
+		}
+
+		/* Copy the expanded argument, escaping quotes. */
+
+		n2 = cp;
+		for (i = ib; i <= ie; i++) {
+			for (ap = arg[i]; *ap != '\0'; ap++) {
+				if (*ap == '"') {
+					memcpy(n2, "\\(dq", 4);
+					n2 += 4;
+				} else
+					*n2++ = *ap;
+			}
+			if (i < ie)
+				*n2++ = ' ';
+		}
+	}
+
+	/*
+	 * Replace the macro invocation
+	 * by the expanded macro.
+	 */
+
+	free(buf->buf);
+	buf->buf = n1;
+	*offs = 0;
+
+	return buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ?
+	   ROFF_REPARSE : ROFF_APPEND;
+}
+
+/*
+ * Calling a high-level macro that was renamed with .rn.
+ * r->current_string has already been set up by roff_parse().
+ */
+static enum rofferr
+roff_renamed(ROFF_ARGS)
+{
+	char	*nbuf;
+
+	buf->sz = mandoc_asprintf(&nbuf, ".%s%s%s", r->current_string,
+	    buf->buf[pos] == '\0' ? "" : " ", buf->buf + pos) + 1;
+	free(buf->buf);
+	buf->buf = nbuf;
+	return ROFF_CONT;
+}
+
+static size_t
+roff_getname(struct roff *r, char **cpp, int ln, int pos)
+{
+	char	 *name, *cp;
+	size_t	  namesz;
+
+	name = *cpp;
+	if ('\0' == *name)
+		return 0;
+
+	/* Read until end of name and terminate it with NUL. */
+	for (cp = name; 1; cp++) {
+		if ('\0' == *cp || ' ' == *cp) {
+			namesz = cp - name;
+			break;
+		}
+		if ('\\' != *cp)
+			continue;
+		namesz = cp - name;
+		if ('{' == cp[1] || '}' == cp[1])
+			break;
+		cp++;
+		if ('\\' == *cp)
+			continue;
+		mandoc_vmsg(MANDOCERR_NAMESC, r->parse, ln, pos,
+		    "%.*s", (int)(cp - name + 1), name);
+		mandoc_escape((const char **)&cp, NULL, NULL);
+		break;
+	}
+
+	/* Read past spaces. */
+	while (' ' == *cp)
+		cp++;
+
+	*cpp = cp;
+	return namesz;
+}
+
+/*
+ * Store *string into the user-defined string called *name.
+ * To clear an existing entry, call with (*r, *name, NULL, 0).
+ * append == 0: replace mode
+ * append == 1: single-line append mode
+ * append == 2: multiline append mode, append '\n' after each call
+ */
+static void
+roff_setstr(struct roff *r, const char *name, const char *string,
+	int append)
+{
+	size_t	 namesz;
+
+	namesz = strlen(name);
+	roff_setstrn(&r->strtab, name, namesz, string,
+	    string ? strlen(string) : 0, append);
+	roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
+}
+
+static void
+roff_setstrn(struct roffkv **r, const char *name, size_t namesz,
+		const char *string, size_t stringsz, int append)
+{
+	struct roffkv	*n;
+	char		*c;
+	int		 i;
+	size_t		 oldch, newch;
+
+	/* Search for an existing string with the same name. */
+	n = *r;
+
+	while (n && (namesz != n->key.sz ||
+			strncmp(n->key.p, name, namesz)))
+		n = n->next;
+
+	if (NULL == n) {
+		/* Create a new string table entry. */
+		n = mandoc_malloc(sizeof(struct roffkv));
+		n->key.p = mandoc_strndup(name, namesz);
+		n->key.sz = namesz;
+		n->val.p = NULL;
+		n->val.sz = 0;
+		n->next = *r;
+		*r = n;
+	} else if (0 == append) {
+		free(n->val.p);
+		n->val.p = NULL;
+		n->val.sz = 0;
+	}
+
+	if (NULL == string)
+		return;
+
+	/*
+	 * One additional byte for the '\n' in multiline mode,
+	 * and one for the terminating '\0'.
+	 */
+	newch = stringsz + (1 < append ? 2u : 1u);
+
+	if (NULL == n->val.p) {
+		n->val.p = mandoc_malloc(newch);
+		*n->val.p = '\0';
+		oldch = 0;
+	} else {
+		oldch = n->val.sz;
+		n->val.p = mandoc_realloc(n->val.p, oldch + newch);
+	}
+
+	/* Skip existing content in the destination buffer. */
+	c = n->val.p + (int)oldch;
+
+	/* Append new content to the destination buffer. */
+	i = 0;
+	while (i < (int)stringsz) {
+		/*
+		 * Rudimentary roff copy mode:
+		 * Handle escaped backslashes.
+		 */
+		if ('\\' == string[i] && '\\' == string[i + 1])
+			i++;
+		*c++ = string[i++];
+	}
+
+	/* Append terminating bytes. */
+	if (1 < append)
+		*c++ = '\n';
+
+	*c = '\0';
+	n->val.sz = (int)(c - n->val.p);
+}
+
+static const char *
+roff_getstrn(const struct roff *r, const char *name, size_t len,
+    int *deftype)
+{
+	const struct roffkv	*n;
+	int			 i;
+	enum roff_tok		 tok;
+
+	if (*deftype & ROFFDEF_USER) {
+		for (n = r->strtab; n != NULL; n = n->next) {
+			if (strncmp(name, n->key.p, len) == 0 &&
+			    n->key.p[len] == '\0' &&
+			    n->val.p != NULL) {
+				*deftype = ROFFDEF_USER;
+				return n->val.p;
+			}
+		}
+	}
+	if (*deftype & ROFFDEF_PRE) {
+		for (i = 0; i < PREDEFS_MAX; i++) {
+			if (strncmp(name, predefs[i].name, len) == 0 &&
+			    predefs[i].name[len] == '\0') {
+				*deftype = ROFFDEF_PRE;
+				return predefs[i].str;
+			}
+		}
+	}
+	if (*deftype & ROFFDEF_REN) {
+		for (n = r->rentab; n != NULL; n = n->next) {
+			if (strncmp(name, n->key.p, len) == 0 &&
+			    n->key.p[len] == '\0' &&
+			    n->val.p != NULL) {
+				*deftype = ROFFDEF_REN;
+				return n->val.p;
+			}
+		}
+	}
+	if (*deftype & ROFFDEF_STD) {
+		if (r->man->macroset != MACROSET_MAN) {
+			for (tok = MDOC_Dd; tok < MDOC_MAX; tok++) {
+				if (strncmp(name, roff_name[tok], len) == 0 &&
+				    roff_name[tok][len] == '\0') {
+					*deftype = ROFFDEF_STD;
+					return NULL;
+				}
+			}
+		}
+		if (r->man->macroset != MACROSET_MDOC) {
+			for (tok = MAN_TH; tok < MAN_MAX; tok++) {
+				if (strncmp(name, roff_name[tok], len) == 0 &&
+				    roff_name[tok][len] == '\0') {
+					*deftype = ROFFDEF_STD;
+					return NULL;
+				}
+			}
+		}
+	}
+	*deftype = 0;
+	return NULL;
+}
+
+static void
+roff_freestr(struct roffkv *r)
+{
+	struct roffkv	 *n, *nn;
+
+	for (n = r; n; n = nn) {
+		free(n->key.p);
+		free(n->val.p);
+		nn = n->next;
+		free(n);
+	}
+}
+
+/* --- accessors and utility functions ------------------------------------ */
+
+/*
+ * Duplicate an input string, making the appropriate character
+ * conversations (as stipulated by `tr') along the way.
+ * Returns a heap-allocated string with all the replacements made.
+ */
+char *
+roff_strdup(const struct roff *r, const char *p)
+{
+	const struct roffkv *cp;
+	char		*res;
+	const char	*pp;
+	size_t		 ssz, sz;
+	enum mandoc_esc	 esc;
+
+	if (NULL == r->xmbtab && NULL == r->xtab)
+		return mandoc_strdup(p);
+	else if ('\0' == *p)
+		return mandoc_strdup("");
+
+	/*
+	 * Step through each character looking for term matches
+	 * (remember that a `tr' can be invoked with an escape, which is
+	 * a glyph but the escape is multi-character).
+	 * We only do this if the character hash has been initialised
+	 * and the string is >0 length.
+	 */
+
+	res = NULL;
+	ssz = 0;
+
+	while ('\0' != *p) {
+		assert((unsigned int)*p < 128);
+		if ('\\' != *p && r->xtab && r->xtab[(unsigned int)*p].p) {
+			sz = r->xtab[(int)*p].sz;
+			res = mandoc_realloc(res, ssz + sz + 1);
+			memcpy(res + ssz, r->xtab[(int)*p].p, sz);
+			ssz += sz;
+			p++;
+			continue;
+		} else if ('\\' != *p) {
+			res = mandoc_realloc(res, ssz + 2);
+			res[ssz++] = *p++;
+			continue;
+		}
+
+		/* Search for term matches. */
+		for (cp = r->xmbtab; cp; cp = cp->next)
+			if (0 == strncmp(p, cp->key.p, cp->key.sz))
+				break;
+
+		if (NULL != cp) {
+			/*
+			 * A match has been found.
+			 * Append the match to the array and move
+			 * forward by its keysize.
+			 */
+			res = mandoc_realloc(res,
+			    ssz + cp->val.sz + 1);
+			memcpy(res + ssz, cp->val.p, cp->val.sz);
+			ssz += cp->val.sz;
+			p += (int)cp->key.sz;
+			continue;
+		}
+
+		/*
+		 * Handle escapes carefully: we need to copy
+		 * over just the escape itself, or else we might
+		 * do replacements within the escape itself.
+		 * Make sure to pass along the bogus string.
+		 */
+		pp = p++;
+		esc = mandoc_escape(&p, NULL, NULL);
+		if (ESCAPE_ERROR == esc) {
+			sz = strlen(pp);
+			res = mandoc_realloc(res, ssz + sz + 1);
+			memcpy(res + ssz, pp, sz);
+			break;
+		}
+		/*
+		 * We bail out on bad escapes.
+		 * No need to warn: we already did so when
+		 * roff_res() was called.
+		 */
+		sz = (int)(p - pp);
+		res = mandoc_realloc(res, ssz + sz + 1);
+		memcpy(res + ssz, pp, sz);
+		ssz += sz;
+	}
+
+	res[(int)ssz] = '\0';
+	return res;
+}
+
+int
+roff_getformat(const struct roff *r)
+{
+
+	return r->format;
+}
+
+/*
+ * Find out whether a line is a macro line or not.
+ * If it is, adjust the current position and return one; if it isn't,
+ * return zero and don't change the current position.
+ * If the control character has been set with `.cc', then let that grain
+ * precedence.
+ * This is slighly contrary to groff, where using the non-breaking
+ * control character when `cc' has been invoked will cause the
+ * non-breaking macro contents to be printed verbatim.
+ */
+int
+roff_getcontrol(const struct roff *r, const char *cp, int *ppos)
+{
+	int		pos;
+
+	pos = *ppos;
+
+	if (r->control != '\0' && cp[pos] == r->control)
+		pos++;
+	else if (r->control != '\0')
+		return 0;
+	else if ('\\' == cp[pos] && '.' == cp[pos + 1])
+		pos += 2;
+	else if ('.' == cp[pos] || '\'' == cp[pos])
+		pos++;
+	else
+		return 0;
+
+	while (' ' == cp[pos] || '\t' == cp[pos])
+		pos++;
+
+	*ppos = pos;
+	return 1;
+}

Added: vendor/mandoc/dist/roff.h
===================================================================
--- vendor/mandoc/dist/roff.h	                        (rev 0)
+++ vendor/mandoc/dist/roff.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,579 @@
+/*	$Id: roff.h,v 1.58 2017/07/08 14:51:05 schwarze Exp $	*/
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct	ohash;
+struct	mdoc_arg;
+union	mdoc_data;
+
+enum	roff_macroset {
+	MACROSET_NONE = 0,
+	MACROSET_MDOC,
+	MACROSET_MAN
+};
+
+enum	roff_sec {
+	SEC_NONE = 0,
+	SEC_NAME,
+	SEC_LIBRARY,
+	SEC_SYNOPSIS,
+	SEC_DESCRIPTION,
+	SEC_CONTEXT,
+	SEC_IMPLEMENTATION,	/* IMPLEMENTATION NOTES */
+	SEC_RETURN_VALUES,
+	SEC_ENVIRONMENT,
+	SEC_FILES,
+	SEC_EXIT_STATUS,
+	SEC_EXAMPLES,
+	SEC_DIAGNOSTICS,
+	SEC_COMPATIBILITY,
+	SEC_ERRORS,
+	SEC_SEE_ALSO,
+	SEC_STANDARDS,
+	SEC_HISTORY,
+	SEC_AUTHORS,
+	SEC_CAVEATS,
+	SEC_BUGS,
+	SEC_SECURITY,
+	SEC_CUSTOM,
+	SEC__MAX
+};
+
+enum	roff_type {
+	ROFFT_ROOT,
+	ROFFT_BLOCK,
+	ROFFT_HEAD,
+	ROFFT_BODY,
+	ROFFT_TAIL,
+	ROFFT_ELEM,
+	ROFFT_TEXT,
+	ROFFT_TBL,
+	ROFFT_EQN
+};
+
+enum	roff_tok {
+	ROFF_br = 0,
+	ROFF_ce,
+	ROFF_ft,
+	ROFF_ll,
+	ROFF_mc,
+	ROFF_po,
+	ROFF_rj,
+	ROFF_sp,
+	ROFF_ta,
+	ROFF_ti,
+	ROFF_MAX,
+	ROFF_ab,
+	ROFF_ad,
+	ROFF_af,
+	ROFF_aln,
+	ROFF_als,
+	ROFF_am,
+	ROFF_am1,
+	ROFF_ami,
+	ROFF_ami1,
+	ROFF_as,
+	ROFF_as1,
+	ROFF_asciify,
+	ROFF_backtrace,
+	ROFF_bd,
+	ROFF_bleedat,
+	ROFF_blm,
+	ROFF_box,
+	ROFF_boxa,
+	ROFF_bp,
+	ROFF_BP,
+	ROFF_break,
+	ROFF_breakchar,
+	ROFF_brnl,
+	ROFF_brp,
+	ROFF_brpnl,
+	ROFF_c2,
+	ROFF_cc,
+	ROFF_cf,
+	ROFF_cflags,
+	ROFF_ch,
+	ROFF_char,
+	ROFF_chop,
+	ROFF_class,
+	ROFF_close,
+	ROFF_CL,
+	ROFF_color,
+	ROFF_composite,
+	ROFF_continue,
+	ROFF_cp,
+	ROFF_cropat,
+	ROFF_cs,
+	ROFF_cu,
+	ROFF_da,
+	ROFF_dch,
+	ROFF_Dd,
+	ROFF_de,
+	ROFF_de1,
+	ROFF_defcolor,
+	ROFF_dei,
+	ROFF_dei1,
+	ROFF_device,
+	ROFF_devicem,
+	ROFF_di,
+	ROFF_do,
+	ROFF_ds,
+	ROFF_ds1,
+	ROFF_dwh,
+	ROFF_dt,
+	ROFF_ec,
+	ROFF_ecr,
+	ROFF_ecs,
+	ROFF_el,
+	ROFF_em,
+	ROFF_EN,
+	ROFF_eo,
+	ROFF_EP,
+	ROFF_EQ,
+	ROFF_errprint,
+	ROFF_ev,
+	ROFF_evc,
+	ROFF_ex,
+	ROFF_fallback,
+	ROFF_fam,
+	ROFF_fc,
+	ROFF_fchar,
+	ROFF_fcolor,
+	ROFF_fdeferlig,
+	ROFF_feature,
+	/* MAN_fi; ignored in mdoc(7) */
+	ROFF_fkern,
+	ROFF_fl,
+	ROFF_flig,
+	ROFF_fp,
+	ROFF_fps,
+	ROFF_fschar,
+	ROFF_fspacewidth,
+	ROFF_fspecial,
+	ROFF_ftr,
+	ROFF_fzoom,
+	ROFF_gcolor,
+	ROFF_hc,
+	ROFF_hcode,
+	ROFF_hidechar,
+	ROFF_hla,
+	ROFF_hlm,
+	ROFF_hpf,
+	ROFF_hpfa,
+	ROFF_hpfcode,
+	ROFF_hw,
+	ROFF_hy,
+	ROFF_hylang,
+	ROFF_hylen,
+	ROFF_hym,
+	ROFF_hypp,
+	ROFF_hys,
+	ROFF_ie,
+	ROFF_if,
+	ROFF_ig,
+	/* MAN_in; ignored in mdoc(7) */
+	ROFF_index,
+	ROFF_it,
+	ROFF_itc,
+	ROFF_IX,
+	ROFF_kern,
+	ROFF_kernafter,
+	ROFF_kernbefore,
+	ROFF_kernpair,
+	ROFF_lc,
+	ROFF_lc_ctype,
+	ROFF_lds,
+	ROFF_length,
+	ROFF_letadj,
+	ROFF_lf,
+	ROFF_lg,
+	ROFF_lhang,
+	ROFF_linetabs,
+	ROFF_lnr,
+	ROFF_lnrf,
+	ROFF_lpfx,
+	ROFF_ls,
+	ROFF_lsm,
+	ROFF_lt,
+	ROFF_mediasize,
+	ROFF_minss,
+	ROFF_mk,
+	ROFF_mso,
+	ROFF_na,
+	ROFF_ne,
+	/* MAN_nf; ignored in mdoc(7) */
+	ROFF_nh,
+	ROFF_nhychar,
+	ROFF_nm,
+	ROFF_nn,
+	ROFF_nop,
+	ROFF_nr,
+	ROFF_nrf,
+	ROFF_nroff,
+	ROFF_ns,
+	ROFF_nx,
+	ROFF_open,
+	ROFF_opena,
+	ROFF_os,
+	ROFF_output,
+	ROFF_padj,
+	ROFF_papersize,
+	ROFF_pc,
+	ROFF_pev,
+	ROFF_pi,
+	ROFF_PI,
+	ROFF_pl,
+	ROFF_pm,
+	ROFF_pn,
+	ROFF_pnr,
+	ROFF_ps,
+	ROFF_psbb,
+	ROFF_pshape,
+	ROFF_pso,
+	ROFF_ptr,
+	ROFF_pvs,
+	ROFF_rchar,
+	ROFF_rd,
+	ROFF_recursionlimit,
+	ROFF_return,
+	ROFF_rfschar,
+	ROFF_rhang,
+	ROFF_rm,
+	ROFF_rn,
+	ROFF_rnn,
+	ROFF_rr,
+	ROFF_rs,
+	ROFF_rt,
+	ROFF_schar,
+	ROFF_sentchar,
+	ROFF_shc,
+	ROFF_shift,
+	ROFF_sizes,
+	ROFF_so,
+	ROFF_spacewidth,
+	ROFF_special,
+	ROFF_spreadwarn,
+	ROFF_ss,
+	ROFF_sty,
+	ROFF_substring,
+	ROFF_sv,
+	ROFF_sy,
+	ROFF_T_,
+	ROFF_tc,
+	ROFF_TE,
+	ROFF_TH,
+	ROFF_tkf,
+	ROFF_tl,
+	ROFF_tm,
+	ROFF_tm1,
+	ROFF_tmc,
+	ROFF_tr,
+	ROFF_track,
+	ROFF_transchar,
+	ROFF_trf,
+	ROFF_trimat,
+	ROFF_trin,
+	ROFF_trnt,
+	ROFF_troff,
+	ROFF_TS,
+	ROFF_uf,
+	ROFF_ul,
+	ROFF_unformat,
+	ROFF_unwatch,
+	ROFF_unwatchn,
+	ROFF_vpt,
+	ROFF_vs,
+	ROFF_warn,
+	ROFF_warnscale,
+	ROFF_watch,
+	ROFF_watchlength,
+	ROFF_watchn,
+	ROFF_wh,
+	ROFF_while,
+	ROFF_write,
+	ROFF_writec,
+	ROFF_writem,
+	ROFF_xflag,
+	ROFF_cblock,
+	ROFF_RENAMED,
+	ROFF_USERDEF,
+	TOKEN_NONE,
+	MDOC_Dd,
+	MDOC_Dt,
+	MDOC_Os,
+	MDOC_Sh,
+	MDOC_Ss,
+	MDOC_Pp,
+	MDOC_D1,
+	MDOC_Dl,
+	MDOC_Bd,
+	MDOC_Ed,
+	MDOC_Bl,
+	MDOC_El,
+	MDOC_It,
+	MDOC_Ad,
+	MDOC_An,
+	MDOC_Ap,
+	MDOC_Ar,
+	MDOC_Cd,
+	MDOC_Cm,
+	MDOC_Dv,
+	MDOC_Er,
+	MDOC_Ev,
+	MDOC_Ex,
+	MDOC_Fa,
+	MDOC_Fd,
+	MDOC_Fl,
+	MDOC_Fn,
+	MDOC_Ft,
+	MDOC_Ic,
+	MDOC_In,
+	MDOC_Li,
+	MDOC_Nd,
+	MDOC_Nm,
+	MDOC_Op,
+	MDOC_Ot,
+	MDOC_Pa,
+	MDOC_Rv,
+	MDOC_St,
+	MDOC_Va,
+	MDOC_Vt,
+	MDOC_Xr,
+	MDOC__A,
+	MDOC__B,
+	MDOC__D,
+	MDOC__I,
+	MDOC__J,
+	MDOC__N,
+	MDOC__O,
+	MDOC__P,
+	MDOC__R,
+	MDOC__T,
+	MDOC__V,
+	MDOC_Ac,
+	MDOC_Ao,
+	MDOC_Aq,
+	MDOC_At,
+	MDOC_Bc,
+	MDOC_Bf,
+	MDOC_Bo,
+	MDOC_Bq,
+	MDOC_Bsx,
+	MDOC_Bx,
+	MDOC_Db,
+	MDOC_Dc,
+	MDOC_Do,
+	MDOC_Dq,
+	MDOC_Ec,
+	MDOC_Ef,
+	MDOC_Em,
+	MDOC_Eo,
+	MDOC_Fx,
+	MDOC_Ms,
+	MDOC_No,
+	MDOC_Ns,
+	MDOC_Nx,
+	MDOC_Ox,
+	MDOC_Pc,
+	MDOC_Pf,
+	MDOC_Po,
+	MDOC_Pq,
+	MDOC_Qc,
+	MDOC_Ql,
+	MDOC_Qo,
+	MDOC_Qq,
+	MDOC_Re,
+	MDOC_Rs,
+	MDOC_Sc,
+	MDOC_So,
+	MDOC_Sq,
+	MDOC_Sm,
+	MDOC_Sx,
+	MDOC_Sy,
+	MDOC_Tn,
+	MDOC_Ux,
+	MDOC_Xc,
+	MDOC_Xo,
+	MDOC_Fo,
+	MDOC_Fc,
+	MDOC_Oo,
+	MDOC_Oc,
+	MDOC_Bk,
+	MDOC_Ek,
+	MDOC_Bt,
+	MDOC_Hf,
+	MDOC_Fr,
+	MDOC_Ud,
+	MDOC_Lb,
+	MDOC_Lp,
+	MDOC_Lk,
+	MDOC_Mt,
+	MDOC_Brq,
+	MDOC_Bro,
+	MDOC_Brc,
+	MDOC__C,
+	MDOC_Es,
+	MDOC_En,
+	MDOC_Dx,
+	MDOC__Q,
+	MDOC__U,
+	MDOC_Ta,
+	MDOC_MAX,
+	MAN_TH,
+	MAN_SH,
+	MAN_SS,
+	MAN_TP,
+	MAN_LP,
+	MAN_PP,
+	MAN_P,
+	MAN_IP,
+	MAN_HP,
+	MAN_SM,
+	MAN_SB,
+	MAN_BI,
+	MAN_IB,
+	MAN_BR,
+	MAN_RB,
+	MAN_R,
+	MAN_B,
+	MAN_I,
+	MAN_IR,
+	MAN_RI,
+	MAN_nf,
+	MAN_fi,
+	MAN_RE,
+	MAN_RS,
+	MAN_DT,
+	MAN_UC,
+	MAN_PD,
+	MAN_AT,
+	MAN_in,
+	MAN_OP,
+	MAN_EX,
+	MAN_EE,
+	MAN_UR,
+	MAN_UE,
+	MAN_MT,
+	MAN_ME,
+	MAN_MAX
+};
+
+enum	roff_next {
+	ROFF_NEXT_SIBLING = 0,
+	ROFF_NEXT_CHILD
+};
+
+/*
+ * Indicates that a BODY's formatting has ended, but
+ * the scope is still open.  Used for badly nested blocks.
+ */
+enum	mdoc_endbody {
+	ENDBODY_NOT = 0,
+	ENDBODY_SPACE	/* Is broken: append a space. */
+};
+
+struct	roff_node {
+	struct roff_node *parent;  /* Parent AST node. */
+	struct roff_node *child;   /* First child AST node. */
+	struct roff_node *last;    /* Last child AST node. */
+	struct roff_node *next;    /* Sibling AST node. */
+	struct roff_node *prev;    /* Prior sibling AST node. */
+	struct roff_node *head;    /* BLOCK */
+	struct roff_node *body;    /* BLOCK/ENDBODY */
+	struct roff_node *tail;    /* BLOCK */
+	struct mdoc_arg	 *args;    /* BLOCK/ELEM */
+	union mdoc_data	 *norm;    /* Normalized arguments. */
+	char		 *string;  /* TEXT */
+	const struct tbl_span *span; /* TBL */
+	struct eqn_box	 *eqn;     /* EQN */
+	int		  line;    /* Input file line number. */
+	int		  pos;     /* Input file column number. */
+	int		  flags;
+#define	NODE_VALID	 (1 << 0)  /* Has been validated. */
+#define	NODE_ENDED	 (1 << 1)  /* Gone past body end mark. */
+#define	NODE_EOS	 (1 << 2)  /* At sentence boundary. */
+#define	NODE_LINE	 (1 << 3)  /* First macro/text on line. */
+#define	NODE_SYNPRETTY	 (1 << 4)  /* SYNOPSIS-style formatting. */
+#define	NODE_BROKEN	 (1 << 5)  /* Must validate parent when ending. */
+#define	NODE_DELIMO	 (1 << 6)
+#define	NODE_DELIMC	 (1 << 7)
+#define	NODE_NOSRC	 (1 << 8)  /* Generated node, not in input file. */
+#define	NODE_NOPRT	 (1 << 9)  /* Shall not print anything. */
+	int		  prev_font; /* Before entering this node. */
+	int		  aux;     /* Decoded node data, type-dependent. */
+	enum roff_tok	  tok;     /* Request or macro ID. */
+	enum roff_type	  type;    /* AST node type. */
+	enum roff_sec	  sec;     /* Current named section. */
+	enum mdoc_endbody end;     /* BODY */
+};
+
+struct	roff_meta {
+	char		 *msec;    /* Manual section, usually a digit. */
+	char		 *vol;     /* Manual volume title. */
+	char		 *os;      /* Operating system. */
+	char		 *arch;    /* Machine architecture. */
+	char		 *title;   /* Manual title, usually CAPS. */
+	char		 *name;    /* Leading manual name. */
+	char		 *date;    /* Normalized date. */
+	int		  hasbody; /* Document is not empty. */
+	int		  rcsids;  /* Bits indexed by enum mandoc_os. */
+	enum mandoc_os	  os_e;    /* Operating system. */
+};
+
+struct	roff_man {
+	struct roff_meta  meta;    /* Document meta-data. */
+	struct mparse	 *parse;   /* Parse pointer. */
+	struct roff	 *roff;    /* Roff parser state data. */
+	struct ohash	 *mdocmac; /* Mdoc macro lookup table. */
+	struct ohash	 *manmac;  /* Man macro lookup table. */
+	const char	 *os_s;    /* Default operating system. */
+	struct roff_node *first;   /* The first node parsed. */
+	struct roff_node *last;    /* The last node parsed. */
+	struct roff_node *last_es; /* The most recent Es node. */
+	int		  quick;   /* Abort parse early. */
+	int		  flags;   /* Parse flags. */
+#define	MDOC_LITERAL	 (1 << 1)  /* In a literal scope. */
+#define	MDOC_PBODY	 (1 << 2)  /* In the document body. */
+#define	MDOC_NEWLINE	 (1 << 3)  /* First macro/text in a line. */
+#define	MDOC_PHRASE	 (1 << 4)  /* In a Bl -column phrase. */
+#define	MDOC_PHRASELIT	 (1 << 5)  /* Literal within a phrase. */
+#define	MDOC_FREECOL	 (1 << 6)  /* `It' invocation should close. */
+#define	MDOC_SYNOPSIS	 (1 << 7)  /* SYNOPSIS-style formatting. */
+#define	MDOC_KEEP	 (1 << 8)  /* In a word keep. */
+#define	MDOC_SMOFF	 (1 << 9)  /* Spacing is off. */
+#define	MDOC_NODELIMC	 (1 << 10) /* Disable closing delimiter handling. */
+#define	MAN_ELINE	 (1 << 11) /* Next-line element scope. */
+#define	MAN_BLINE	 (1 << 12) /* Next-line block scope. */
+#define	MDOC_PHRASEQF	 (1 << 13) /* Quote first word encountered. */
+#define	MDOC_PHRASEQL	 (1 << 14) /* Quote last word of this phrase. */
+#define	MDOC_PHRASEQN	 (1 << 15) /* Quote first word of the next phrase. */
+#define	MAN_LITERAL	  MDOC_LITERAL
+#define	MAN_NEWLINE	  MDOC_NEWLINE
+	enum roff_macroset macroset; /* Kind of high-level macros used. */
+	enum roff_sec	  lastsec; /* Last section seen. */
+	enum roff_sec	  lastnamed; /* Last standard section seen. */
+	enum roff_next	  next;    /* Where to put the next node. */
+};
+
+extern	const char *const *roff_name;
+
+
+void		 deroff(char **, const struct roff_node *);
+struct ohash	*roffhash_alloc(enum roff_tok, enum roff_tok);
+enum roff_tok	 roffhash_find(struct ohash *, const char *, size_t);
+void		 roffhash_free(struct ohash *);
+void		 roff_validate(struct roff_man *);

Added: vendor/mandoc/dist/roff_html.c
===================================================================
--- vendor/mandoc/dist/roff_html.c	                        (rev 0)
+++ vendor/mandoc/dist/roff_html.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,96 @@
+/*	$Id: roff_html.c,v 1.11 2017/06/24 14:38:33 schwarze Exp $ */
+/*
+ * Copyright (c) 2010 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stddef.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "out.h"
+#include "html.h"
+
+#define	ROFF_HTML_ARGS struct html *h, const struct roff_node *n
+
+typedef	void	(*roff_html_pre_fp)(ROFF_HTML_ARGS);
+
+static	void	  roff_html_pre_br(ROFF_HTML_ARGS);
+static	void	  roff_html_pre_ce(ROFF_HTML_ARGS);
+static	void	  roff_html_pre_sp(ROFF_HTML_ARGS);
+
+static	const roff_html_pre_fp roff_html_pre_acts[ROFF_MAX] = {
+	roff_html_pre_br,  /* br */
+	roff_html_pre_ce,  /* ce */
+	NULL,  /* ft */
+	NULL,  /* ll */
+	NULL,  /* mc */
+	NULL,  /* po */
+	roff_html_pre_ce,  /* rj */
+	roff_html_pre_sp,  /* sp */
+	NULL,  /* ta */
+	NULL,  /* ti */
+};
+
+
+void
+roff_html_pre(struct html *h, const struct roff_node *n)
+{
+	assert(n->tok < ROFF_MAX);
+	if (roff_html_pre_acts[n->tok] != NULL)
+		(*roff_html_pre_acts[n->tok])(h, n);
+}
+
+static void
+roff_html_pre_br(ROFF_HTML_ARGS)
+{
+	struct tag	*t;
+
+	t = print_otag(h, TAG_DIV, "");
+	print_text(h, "\\~");  /* So the div isn't empty. */
+	print_tagq(h, t);
+}
+
+static void
+roff_html_pre_ce(ROFF_HTML_ARGS)
+{
+	for (n = n->child->next; n != NULL; n = n->next) {
+		if (n->type == ROFFT_TEXT) {
+			if (n->flags & NODE_LINE)
+				roff_html_pre_br(h, n);
+			print_text(h, n->string);
+		} else
+			roff_html_pre(h, n);
+	}
+	roff_html_pre_br(h, n);
+}
+
+static void
+roff_html_pre_sp(ROFF_HTML_ARGS)
+{
+	struct roffsu	 su;
+
+	SCALE_VS_INIT(&su, 1);
+	if ((n = n->child) != NULL) {
+		if (a2roffsu(n->string, &su, SCALE_VS) == NULL)
+			su.scale = 1.0;
+		else if (su.scale < 0.0)
+			su.scale = 0.0;
+	}
+	print_otag(h, TAG_DIV, "suh", &su);
+	print_text(h, "\\~");  /* So the div isn't empty. */
+}

Added: vendor/mandoc/dist/roff_int.h
===================================================================
--- vendor/mandoc/dist/roff_int.h	                        (rev 0)
+++ vendor/mandoc/dist/roff_int.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,39 @@
+/*	$Id: roff_int.h,v 1.9 2017/07/08 17:52:50 schwarze Exp $	*/
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct roff_node *roff_node_alloc(struct roff_man *, int, int,
+			enum roff_type, int);
+void		  roff_node_append(struct roff_man *, struct roff_node *);
+void		  roff_word_alloc(struct roff_man *, int, int, const char *);
+void		  roff_word_append(struct roff_man *, const char *);
+void		  roff_elem_alloc(struct roff_man *, int, int, int);
+struct roff_node *roff_block_alloc(struct roff_man *, int, int, int);
+struct roff_node *roff_head_alloc(struct roff_man *, int, int, int);
+struct roff_node *roff_body_alloc(struct roff_man *, int, int, int);
+void		  roff_node_unlink(struct roff_man *, struct roff_node *);
+void		  roff_node_free(struct roff_node *);
+void		  roff_node_delete(struct roff_man *, struct roff_node *);
+
+/*
+ * Functions called from roff.c need to be declared here,
+ * not in libmdoc.h or libman.h, even if they are specific
+ * to either the mdoc(7) or the man(7) parser.
+ */
+
+void		  man_breakscope(struct roff_man *, int);
+void		  mdoc_argv_free(struct mdoc_arg *);

Added: vendor/mandoc/dist/roff_term.c
===================================================================
--- vendor/mandoc/dist/roff_term.c	                        (rev 0)
+++ vendor/mandoc/dist/roff_term.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,248 @@
+/*	$Id: roff_term.c,v 1.14 2017/06/24 14:38:33 schwarze Exp $ */
+/*
+ * Copyright (c) 2010, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stddef.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "out.h"
+#include "term.h"
+
+#define	ROFF_TERM_ARGS struct termp *p, const struct roff_node *n
+
+typedef	void	(*roff_term_pre_fp)(ROFF_TERM_ARGS);
+
+static	void	  roff_term_pre_br(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_ce(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_ft(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_ll(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_mc(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_po(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_sp(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_ta(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_ti(ROFF_TERM_ARGS);
+
+static	const roff_term_pre_fp roff_term_pre_acts[ROFF_MAX] = {
+	roff_term_pre_br,  /* br */
+	roff_term_pre_ce,  /* ce */
+	roff_term_pre_ft,  /* ft */
+	roff_term_pre_ll,  /* ll */
+	roff_term_pre_mc,  /* mc */
+	roff_term_pre_po,  /* po */
+	roff_term_pre_ce,  /* rj */
+	roff_term_pre_sp,  /* sp */
+	roff_term_pre_ta,  /* ta */
+	roff_term_pre_ti,  /* ti */
+};
+
+
+void
+roff_term_pre(struct termp *p, const struct roff_node *n)
+{
+	assert(n->tok < ROFF_MAX);
+	(*roff_term_pre_acts[n->tok])(p, n);
+}
+
+static void
+roff_term_pre_br(ROFF_TERM_ARGS)
+{
+	term_newln(p);
+	if (p->flags & TERMP_BRIND) {
+		p->tcol->offset = p->tcol->rmargin;
+		p->tcol->rmargin = p->maxrmargin;
+		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
+	}
+}
+
+static void
+roff_term_pre_ce(ROFF_TERM_ARGS)
+{
+	const struct roff_node	*nc1, *nc2;
+	size_t			 len, lm;
+
+	roff_term_pre_br(p, n);
+	lm = p->tcol->offset;
+	nc1 = n->child->next;
+	while (nc1 != NULL) {
+		nc2 = nc1;
+		len = 0;
+		do {
+			if (nc2->type == ROFFT_TEXT) {
+				if (len)
+					len++;
+				len += term_strlen(p, nc2->string);
+			}
+			nc2 = nc2->next;
+		} while (nc2 != NULL && (nc2->type != ROFFT_TEXT ||
+		    (nc2->flags & NODE_LINE) == 0));
+		p->tcol->offset = len >= p->tcol->rmargin ? 0 :
+		    lm + len >= p->tcol->rmargin ? p->tcol->rmargin - len :
+		    n->tok == ROFF_rj ? p->tcol->rmargin - len :
+		    (lm + p->tcol->rmargin - len) / 2;
+		while (nc1 != nc2) {
+			if (nc1->type == ROFFT_TEXT)
+				term_word(p, nc1->string);
+			else
+				roff_term_pre(p, nc1);
+			nc1 = nc1->next;
+		}
+		p->flags |= TERMP_NOSPACE;
+		term_flushln(p);
+	}
+	p->tcol->offset = lm;
+}
+
+static void
+roff_term_pre_ft(ROFF_TERM_ARGS)
+{
+	switch (*n->child->string) {
+	case '4':
+	case '3':
+	case 'B':
+		term_fontrepl(p, TERMFONT_BOLD);
+		break;
+	case '2':
+	case 'I':
+		term_fontrepl(p, TERMFONT_UNDER);
+		break;
+	case 'P':
+		term_fontlast(p);
+		break;
+	case '1':
+	case 'C':
+	case 'R':
+		term_fontrepl(p, TERMFONT_NONE);
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+roff_term_pre_ll(ROFF_TERM_ARGS)
+{
+	term_setwidth(p, n->child != NULL ? n->child->string : NULL);
+}
+
+static void
+roff_term_pre_mc(ROFF_TERM_ARGS)
+{
+	if (p->col) {
+		p->flags |= TERMP_NOBREAK;
+		term_flushln(p);
+		p->flags &= ~(TERMP_NOBREAK | TERMP_NOSPACE);
+	}
+	if (n->child != NULL) {
+		p->mc = n->child->string;
+		p->flags |= TERMP_NEWMC;
+	} else
+		p->flags |= TERMP_ENDMC;
+}
+
+static void
+roff_term_pre_po(ROFF_TERM_ARGS)
+{
+	struct roffsu	 su;
+	static int	 po, polast;
+	int		 ponew;
+
+	if (n->child != NULL &&
+	    a2roffsu(n->child->string, &su, SCALE_EM) != NULL) {
+		ponew = term_hen(p, &su);
+		if (*n->child->string == '+' ||
+		    *n->child->string == '-')
+			ponew += po;
+	} else
+		ponew = polast;
+	polast = po;
+	po = ponew;
+
+	ponew = po - polast + (int)p->tcol->offset;
+	p->tcol->offset = ponew > 0 ? ponew : 0;
+}
+
+static void
+roff_term_pre_sp(ROFF_TERM_ARGS)
+{
+	struct roffsu	 su;
+	int		 len;
+
+	if (n->child != NULL) {
+		if (a2roffsu(n->child->string, &su, SCALE_VS) == NULL)
+			su.scale = 1.0;
+		len = term_vspan(p, &su);
+	} else
+		len = 1;
+
+	if (len < 0)
+		p->skipvsp -= len;
+	else
+		while (len--)
+			term_vspace(p);
+
+	roff_term_pre_br(p, n);
+}
+
+static void
+roff_term_pre_ta(ROFF_TERM_ARGS)
+{
+	term_tab_set(p, NULL);
+	for (n = n->child; n != NULL; n = n->next)
+		term_tab_set(p, n->string);
+}
+
+static void
+roff_term_pre_ti(ROFF_TERM_ARGS)
+{
+	struct roffsu	 su;
+	const char	*cp;
+	int		 len, sign;
+
+	roff_term_pre_br(p, n);
+
+	if (n->child == NULL)
+		return;
+	cp = n->child->string;
+	if (*cp == '+') {
+		sign = 1;
+		cp++;
+	} else if (*cp == '-') {
+		sign = -1;
+		cp++;
+	} else
+		sign = 0;
+
+	if (a2roffsu(cp, &su, SCALE_EM) == NULL)
+		return;
+	len = term_hen(p, &su);
+
+	if (sign == 0) {
+		p->ti = len - p->tcol->offset;
+		p->tcol->offset = len;
+	} else if (sign == 1) {
+		p->ti = len;
+		p->tcol->offset += len;
+	} else if ((size_t)len < p->tcol->offset) {
+		p->ti = -len;
+		p->tcol->offset -= len;
+	} else {
+		p->ti = -p->tcol->offset;
+		p->tcol->offset = 0;
+	}
+}

Added: vendor/mandoc/dist/roff_validate.c
===================================================================
--- vendor/mandoc/dist/roff_validate.c	                        (rev 0)
+++ vendor/mandoc/dist/roff_validate.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,97 @@
+/*	$Id: roff_validate.c,v 1.9 2017/06/14 22:51:25 schwarze Exp $ */
+/*
+ * Copyright (c) 2010, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stddef.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "libmandoc.h"
+#include "roff_int.h"
+
+#define	ROFF_VALID_ARGS struct roff_man *man, struct roff_node *n
+
+typedef	void	(*roff_valid_fp)(ROFF_VALID_ARGS);
+
+static	void	  roff_valid_ft(ROFF_VALID_ARGS);
+
+static	const roff_valid_fp roff_valids[ROFF_MAX] = {
+	NULL,  /* br */
+	NULL,  /* ce */
+	roff_valid_ft,  /* ft */
+	NULL,  /* ll */
+	NULL,  /* mc */
+	NULL,  /* po */
+	NULL,  /* rj */
+	NULL,  /* sp */
+	NULL,  /* ta */
+	NULL,  /* ti */
+};
+
+
+void
+roff_validate(struct roff_man *man)
+{
+	struct roff_node	*n;
+
+	n = man->last;
+	assert(n->tok < ROFF_MAX);
+	if (roff_valids[n->tok] != NULL)
+		(*roff_valids[n->tok])(man, n);
+}
+
+static void
+roff_valid_ft(ROFF_VALID_ARGS)
+{
+	char	*cp;
+
+	if (n->child == NULL) {
+		man->next = ROFF_NEXT_CHILD;
+		roff_word_alloc(man, n->line, n->pos, "P");
+		man->last = n;
+		return;
+	}
+
+	cp = n->child->string;
+	switch (*cp) {
+	case '1':
+	case '2':
+	case '3':
+	case '4':
+	case 'I':
+	case 'P':
+	case 'R':
+		if (cp[1] == '\0')
+			return;
+		break;
+	case 'B':
+		if (cp[1] == '\0' || (cp[1] == 'I' && cp[2] == '\0'))
+			return;
+		break;
+	case 'C':
+		if (cp[1] == 'W' && cp[2] == '\0')
+			return;
+		break;
+	default:
+		break;
+	}
+
+	mandoc_vmsg(MANDOCERR_FT_BAD, man->parse,
+	    n->line, n->pos, "ft %s", cp);
+	roff_node_delete(man, n);
+}

Added: vendor/mandoc/dist/soelim.1
===================================================================
--- vendor/mandoc/dist/soelim.1	                        (rev 0)
+++ vendor/mandoc/dist/soelim.1	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,86 @@
+.\"	$Id: soelim.1,v 1.5 2017/07/04 23:40:01 schwarze Exp $
+.\"
+.\" Copyright (c) 2014 Baptiste Daroussin <bapt at FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: July 4 2017 $
+.Dt SOELIM 1
+.Os
+.Sh NAME
+.Nm soelim
+.Nd interpret .so requests in manpages
+.Sh SYNOPSIS
+.Nm
+.Op Fl Crtv
+.Op Fl I Ar dir
+.Op Ar files ...
+.Sh DESCRIPTION
+.Nm
+reads
+.Ar files
+lines by lines.
+.Pp
+If a line starts by:
+.Dq .so anotherfile
+it replace the line by processing
+.Dq anotherfile .
+Otherwise the line is printed to stdout.
+.Bl -tag -width "-I dir"
+.It Fl C
+Recognise
+.Em .so
+when not followed by a space character.
+.It Fl r
+Compatibility with GNU groff's
+.Nm soelim
+(does nothing).
+.It Fl t
+Compatibility with GNU groff's
+.Nm soelim
+(does nothing).
+.It Fl v
+Compatibility with GNU groff's
+.Nm soelim
+(does nothing).
+.It Fl I Ar dir
+This option specify directories where
+.Nm
+searches for files (both those on the command line and those named in
+.Dq .so
+directive.)
+This options may be specified multiple times.
+The directories will be searched in the order specified.
+.El
+.Pp
+The files are always searched first in the current directory.
+.Pp
+A file specified with an absolute path will be opened directly without
+performing a search.
+.Sh SEE ALSO
+.Xr mandoc 1
+.Sh AUTHORS
+This version of the
+.Nm
+utility was written by
+.An Baptiste Daroussin Aq Mt bapt at freebsd.org .

Added: vendor/mandoc/dist/soelim.c
===================================================================
--- vendor/mandoc/dist/soelim.c	                        (rev 0)
+++ vendor/mandoc/dist/soelim.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,182 @@
+/*	$Id: soelim.c,v 1.5 2015/11/07 14:22:29 schwarze Exp $	*/
+/*
+ * Copyright (c) 2014 Baptiste Daroussin <bapt at FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_STRINGLIST
+#include <stringlist.h>
+#else
+#include "compat_stringlist.h"
+#endif
+#include <unistd.h>
+
+#define C_OPTION 0x1
+
+static StringList *includes;
+
+static void
+usage(void)
+{
+
+	fprintf(stderr, "usage: soelim [-Crtv] [-I dir] [files]\n");
+
+	exit(EXIT_FAILURE);
+}
+
+static FILE *
+soelim_fopen(const char *name)
+{
+	FILE *f;
+	char path[PATH_MAX];
+	size_t i;
+
+	if (strcmp(name, "-") == 0)
+		return (stdin);
+
+	if ((f = fopen(name, "r")) != NULL)
+		return (f);
+
+	if (*name == '/') {
+		warn("can't open '%s'", name);
+		return (NULL);
+	}
+
+	for (i = 0; i < includes->sl_cur; i++) {
+		snprintf(path, sizeof(path), "%s/%s", includes->sl_str[i],
+		    name);
+		if ((f = fopen(path, "r")) != NULL)
+			return (f);
+	}
+
+	warn("can't open '%s'", name);
+
+	return (f);
+}
+
+static int
+soelim_file(FILE *f, int flag)
+{
+	char *line = NULL;
+	char *walk, *cp;
+	size_t linecap = 0;
+	ssize_t linelen;
+
+	if (f == NULL)
+		return (1);
+
+	while ((linelen = getline(&line, &linecap, f)) > 0) {
+		if (strncmp(line, ".so", 3) != 0) {
+			printf("%s", line);
+			continue;
+		}
+
+		walk = line + 3;
+		if (!isspace(*walk) && ((flag & C_OPTION) == 0)) {
+			printf("%s", line);
+			continue;
+		}
+
+		while (isspace(*walk))
+			walk++;
+
+		cp = walk;
+		while (*cp != '\0' && !isspace(*cp))
+			cp++;
+		*cp = 0;
+		if (cp < line + linelen)
+			cp++;
+
+		if (*walk == '\0') {
+			printf("%s", line);
+			continue;
+		}
+		if (soelim_file(soelim_fopen(walk), flag) == 1) {
+			free(line);
+			return (1);
+		}
+		if (*cp != '\0')
+			printf("%s", cp);
+	}
+
+	free(line);
+	fclose(f);
+
+	return (0);
+}
+
+int
+main(int argc, char **argv)
+{
+	int ch, i;
+	int ret = 0;
+	int flags = 0;
+
+	includes = sl_init();
+	if (includes == NULL)
+		err(EXIT_FAILURE, "sl_init()");
+
+	while ((ch = getopt(argc, argv, "CrtvI:")) != -1) {
+		switch (ch) {
+		case 'C':
+			flags |= C_OPTION;
+			break;
+		case 'r':
+		case 'v':
+		case 't':
+			/* stub compatibility with groff's soelim */
+			break;
+		case 'I':
+			sl_add(includes, optarg);
+			break;
+		default:
+			sl_free(includes, 0);
+			usage();
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (argc == 0)
+		ret = soelim_file(stdin, flags);
+
+	for (i = 0; i < argc; i++)
+		ret = soelim_file(soelim_fopen(argv[i]), flags);
+
+	sl_free(includes, 0);
+
+	return (ret);
+}

Added: vendor/mandoc/dist/st.c
===================================================================
--- vendor/mandoc/dist/st.c	                        (rev 0)
+++ vendor/mandoc/dist/st.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,38 @@
+/*	$Id: st.c,v 1.14 2017/06/24 14:38:33 schwarze Exp $ */
+/*
+ * Copyright (c) 2009 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <string.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmdoc.h"
+
+#define LINE(x, y) \
+	if (0 == strcmp(p, x)) return(y);
+
+const char *
+mdoc_a2st(const char *p)
+{
+
+#include "st.in"
+
+	return NULL;
+}

Added: vendor/mandoc/dist/st.in
===================================================================
--- vendor/mandoc/dist/st.in	                        (rev 0)
+++ vendor/mandoc/dist/st.in	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,76 @@
+/*	$Id: st.in,v 1.29 2017/06/24 13:49:29 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This file defines the .St macro arguments.  If you add a new
+ * standard, make sure that the left-and side corresponds to the .St
+ * argument (like .St -p1003.1) and the right-hand side corresponds to
+ * the formatted output string.
+ *
+ * Be sure to escape strings.
+ * The non-breaking blanks prevent ending an output line right before
+ * a number.  Groff prevent line breaks at the same places.
+ *
+ * REMEMBER TO ADD NEW STANDARDS TO MDOC.7!
+ */
+
+LINE("-p1003.1-88",	"IEEE Std 1003.1-1988 (\\(LqPOSIX.1\\(Rq)")
+LINE("-p1003.1-90",	"IEEE Std 1003.1-1990 (\\(LqPOSIX.1\\(Rq)")
+LINE("-p1003.1-96",	"ISO/IEC 9945-1:1996 (\\(LqPOSIX.1\\(Rq)")
+LINE("-p1003.1-2001",	"IEEE Std 1003.1-2001 (\\(LqPOSIX.1\\(Rq)")
+LINE("-p1003.1-2004",	"IEEE Std 1003.1-2004 (\\(LqPOSIX.1\\(Rq)")
+LINE("-p1003.1-2008",	"IEEE Std 1003.1-2008 (\\(LqPOSIX.1\\(Rq)")
+LINE("-p1003.1",	"IEEE Std 1003.1 (\\(LqPOSIX.1\\(Rq)")
+LINE("-p1003.1b",	"IEEE Std 1003.1b (\\(LqPOSIX.1b\\(Rq)")
+LINE("-p1003.1b-93",	"IEEE Std 1003.1b-1993 (\\(LqPOSIX.1b\\(Rq)")
+LINE("-p1003.1c-95",	"IEEE Std 1003.1c-1995 (\\(LqPOSIX.1c\\(Rq)")
+LINE("-p1003.1g-2000",	"IEEE Std 1003.1g-2000 (\\(LqPOSIX.1g\\(Rq)")
+LINE("-p1003.1i-95",	"IEEE Std 1003.1i-1995 (\\(LqPOSIX.1i\\(Rq)")
+LINE("-p1003.2",	"IEEE Std 1003.2 (\\(LqPOSIX.2\\(Rq)")
+LINE("-p1003.2-92",	"IEEE Std 1003.2-1992 (\\(LqPOSIX.2\\(Rq)")
+LINE("-p1003.2a-92",	"IEEE Std 1003.2a-1992 (\\(LqPOSIX.2\\(Rq)")
+LINE("-isoC",		"ISO/IEC 9899:1990 (\\(LqISO\\~C90\\(Rq)")
+LINE("-isoC-90",	"ISO/IEC 9899:1990 (\\(LqISO\\~C90\\(Rq)")
+LINE("-isoC-amd1",	"ISO/IEC 9899/AMD1:1995 (\\(LqISO\\~C90, Amendment 1\\(Rq)")
+LINE("-isoC-tcor1",	"ISO/IEC 9899/TCOR1:1994 (\\(LqISO\\~C90, Technical Corrigendum 1\\(Rq)")
+LINE("-isoC-tcor2",	"ISO/IEC 9899/TCOR2:1995 (\\(LqISO\\~C90, Technical Corrigendum 2\\(Rq)")
+LINE("-isoC-99",	"ISO/IEC 9899:1999 (\\(LqISO\\~C99\\(Rq)")
+LINE("-isoC-2011",	"ISO/IEC 9899:2011 (\\(LqISO\\~C11\\(Rq)")
+LINE("-iso9945-1-90",	"ISO/IEC 9945-1:1990 (\\(LqPOSIX.1\\(Rq)")
+LINE("-iso9945-1-96",	"ISO/IEC 9945-1:1996 (\\(LqPOSIX.1\\(Rq)")
+LINE("-iso9945-2-93",	"ISO/IEC 9945-2:1993 (\\(LqPOSIX.2\\(Rq)")
+LINE("-ansiC",		"ANSI X3.159-1989 (\\(LqANSI\\~C89\\(Rq)")
+LINE("-ansiC-89",	"ANSI X3.159-1989 (\\(LqANSI\\~C89\\(Rq)")
+LINE("-ieee754",	"IEEE Std 754-1985")
+LINE("-iso8802-3",	"ISO 8802-3: 1989")
+LINE("-iso8601",	"ISO 8601")
+LINE("-ieee1275-94",	"IEEE Std 1275-1994 (\\(LqOpen Firmware\\(Rq)")
+LINE("-xpg3",		"X/Open Portability Guide Issue\\~3 (\\(LqXPG3\\(Rq)")
+LINE("-xpg4",		"X/Open Portability Guide Issue\\~4 (\\(LqXPG4\\(Rq)")
+LINE("-xpg4.2",		"X/Open Portability Guide Issue\\~4, Version\\~2 (\\(LqXPG4.2\\(Rq)")
+LINE("-xbd5",		"X/Open Base Definitions Issue\\~5 (\\(LqXBD5\\(Rq)")
+LINE("-xcu5",		"X/Open Commands and Utilities Issue\\~5 (\\(LqXCU5\\(Rq)")
+LINE("-xsh4.2",		"X/Open System Interfaces and Headers Issue\\~4, Version\\~2 (\\(LqXSH4.2\\(Rq)")
+LINE("-xsh5",		"X/Open System Interfaces and Headers Issue\\~5 (\\(LqXSH5\\(Rq)")
+LINE("-xns5",		"X/Open Networking Services Issue\\~5 (\\(LqXNS5\\(Rq)")
+LINE("-xns5.2",		"X/Open Networking Services Issue\\~5.2 (\\(LqXNS5.2\\(Rq)")
+LINE("-xcurses4.2",	"X/Open Curses Issue\\~4, Version\\~2 (\\(LqXCURSES4.2\\(Rq)")
+LINE("-susv1",		"Version\\~1 of the Single UNIX Specification (\\(LqSUSv1\\(Rq)")
+LINE("-susv2",		"Version\\~2 of the Single UNIX Specification (\\(LqSUSv2\\(Rq)")
+LINE("-susv3",		"Version\\~3 of the Single UNIX Specification (\\(LqSUSv3\\(Rq)")
+LINE("-susv4",		"Version\\~4 of the Single UNIX Specification (\\(LqSUSv4\\(Rq)")
+LINE("-svid4",		"System\\~V Interface Definition, Fourth Edition (\\(LqSVID4\\(Rq)")

Added: vendor/mandoc/dist/tag.c
===================================================================
--- vendor/mandoc/dist/tag.c	                        (rev 0)
+++ vendor/mandoc/dist/tag.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,249 @@
+/*	$Id: tag.c,v 1.18 2017/02/17 14:31:52 schwarze Exp $ */
+/*
+ * Copyright (c) 2015, 2016 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <signal.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc_ohash.h"
+#include "tag.h"
+
+struct tag_entry {
+	size_t	*lines;
+	size_t	 maxlines;
+	size_t	 nlines;
+	int	 prio;
+	char	 s[];
+};
+
+static	void	 tag_signal(int) __attribute__((__noreturn__));
+
+static struct ohash	 tag_data;
+static struct tag_files	 tag_files;
+
+
+/*
+ * Prepare for using a pager.
+ * Not all pagers are capable of using a tag file,
+ * but for simplicity, create it anyway.
+ */
+struct tag_files *
+tag_init(void)
+{
+	struct sigaction	 sa;
+	int			 ofd;
+
+	ofd = -1;
+	tag_files.tfd = -1;
+	tag_files.tcpgid = -1;
+
+	/* Clean up when dying from a signal. */
+
+	memset(&sa, 0, sizeof(sa));
+	sigfillset(&sa.sa_mask);
+	sa.sa_handler = tag_signal;
+	sigaction(SIGHUP, &sa, NULL);
+	sigaction(SIGINT, &sa, NULL);
+	sigaction(SIGTERM, &sa, NULL);
+
+	/*
+	 * POSIX requires that a process calling tcsetpgrp(3)
+	 * from the background gets a SIGTTOU signal.
+	 * In that case, do not stop.
+	 */
+
+	sa.sa_handler = SIG_IGN;
+	sigaction(SIGTTOU, &sa, NULL);
+
+	/* Save the original standard output for use by the pager. */
+
+	if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1)
+		goto fail;
+
+	/* Create both temporary output files. */
+
+	(void)strlcpy(tag_files.ofn, "/tmp/man.XXXXXXXXXX",
+	    sizeof(tag_files.ofn));
+	(void)strlcpy(tag_files.tfn, "/tmp/man.XXXXXXXXXX",
+	    sizeof(tag_files.tfn));
+	if ((ofd = mkstemp(tag_files.ofn)) == -1)
+		goto fail;
+	if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1)
+		goto fail;
+	if (dup2(ofd, STDOUT_FILENO) == -1)
+		goto fail;
+	close(ofd);
+
+	/*
+	 * Set up the ohash table to collect output line numbers
+	 * where various marked-up terms are documented.
+	 */
+
+	mandoc_ohash_init(&tag_data, 4, offsetof(struct tag_entry, s));
+	return &tag_files;
+
+fail:
+	tag_unlink();
+	if (ofd != -1)
+		close(ofd);
+	if (tag_files.ofd != -1)
+		close(tag_files.ofd);
+	if (tag_files.tfd != -1)
+		close(tag_files.tfd);
+	*tag_files.ofn = '\0';
+	*tag_files.tfn = '\0';
+	tag_files.ofd = -1;
+	tag_files.tfd = -1;
+	return NULL;
+}
+
+/*
+ * Set the line number where a term is defined,
+ * unless it is already defined at a higher priority.
+ */
+void
+tag_put(const char *s, int prio, size_t line)
+{
+	struct tag_entry	*entry;
+	size_t			 len;
+	unsigned int		 slot;
+
+	/* Sanity checks. */
+
+	if (tag_files.tfd <= 0)
+		return;
+	if (s[0] == '\\' && (s[1] == '&' || s[1] == 'e'))
+		s += 2;
+	if (*s == '\0' || strchr(s, ' ') != NULL)
+		return;
+
+	slot = ohash_qlookup(&tag_data, s);
+	entry = ohash_find(&tag_data, slot);
+
+	if (entry == NULL) {
+
+		/* Build a new entry. */
+
+		len = strlen(s) + 1;
+		entry = mandoc_malloc(sizeof(*entry) + len);
+		memcpy(entry->s, s, len);
+		entry->lines = NULL;
+		entry->maxlines = entry->nlines = 0;
+		ohash_insert(&tag_data, slot, entry);
+
+	} else {
+
+		/* Handle priority 0 entries. */
+
+		if (prio == 0) {
+			if (entry->prio == 0)
+				entry->prio = -1;
+			return;
+		}
+
+		/* A better entry is already present, ignore the new one. */
+
+		if (entry->prio > 0 && entry->prio < prio)
+			return;
+
+		/* The existing entry is worse, clear it. */
+
+		if (entry->prio < 1 || entry->prio > prio)
+			entry->nlines = 0;
+	}
+
+	/* Remember the new line. */
+
+	if (entry->maxlines == entry->nlines) {
+		entry->maxlines += 4;
+		entry->lines = mandoc_reallocarray(entry->lines,
+		    entry->maxlines, sizeof(*entry->lines));
+	}
+	entry->lines[entry->nlines++] = line;
+	entry->prio = prio;
+}
+
+/*
+ * Write out the tags file using the previously collected
+ * information and clear the ohash table while going along.
+ */
+void
+tag_write(void)
+{
+	FILE			*stream;
+	struct tag_entry	*entry;
+	size_t			 i;
+	unsigned int		 slot;
+
+	if (tag_files.tfd <= 0)
+		return;
+	stream = fdopen(tag_files.tfd, "w");
+	entry = ohash_first(&tag_data, &slot);
+	while (entry != NULL) {
+		if (stream != NULL && entry->prio >= 0)
+			for (i = 0; i < entry->nlines; i++)
+				fprintf(stream, "%s %s %zu\n",
+				    entry->s, tag_files.ofn, entry->lines[i]);
+		free(entry->lines);
+		free(entry);
+		entry = ohash_next(&tag_data, &slot);
+	}
+	ohash_delete(&tag_data);
+	if (stream != NULL)
+		fclose(stream);
+}
+
+void
+tag_unlink(void)
+{
+	pid_t	 tc_pgid;
+
+	if (tag_files.tcpgid != -1) {
+		tc_pgid = tcgetpgrp(tag_files.ofd);
+		if (tc_pgid == tag_files.pager_pid ||
+		    tc_pgid == getpgid(0) ||
+		    getpgid(tc_pgid) == -1)
+			(void)tcsetpgrp(tag_files.ofd, tag_files.tcpgid);
+	}
+	if (*tag_files.ofn != '\0')
+		unlink(tag_files.ofn);
+	if (*tag_files.tfn != '\0')
+		unlink(tag_files.tfn);
+}
+
+static void
+tag_signal(int signum)
+{
+	struct sigaction	 sa;
+
+	tag_unlink();
+	memset(&sa, 0, sizeof(sa));
+	sigemptyset(&sa.sa_mask);
+	sa.sa_handler = SIG_DFL;
+	sigaction(signum, &sa, NULL);
+	kill(getpid(), signum);
+	/* NOTREACHED */
+	_exit(1);
+}

Added: vendor/mandoc/dist/tag.h
===================================================================
--- vendor/mandoc/dist/tag.h	                        (rev 0)
+++ vendor/mandoc/dist/tag.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,31 @@
+/*      $Id: tag.h,v 1.7 2015/11/20 21:59:54 schwarze Exp $    */
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct	tag_files {
+	char	 ofn[20];
+	char	 tfn[20];
+	int	 ofd;
+	int	 tfd;
+	pid_t	 tcpgid;
+	pid_t	 pager_pid;
+};
+
+
+struct tag_files *tag_init(void);
+void	 tag_put(const char *, int, size_t);
+void	 tag_write(void);
+void	 tag_unlink(void);

Added: vendor/mandoc/dist/tbl.3
===================================================================
--- vendor/mandoc/dist/tbl.3	                        (rev 0)
+++ vendor/mandoc/dist/tbl.3	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,354 @@
+.\"	$Id: tbl.3,v 1.2 2015/01/30 04:11:50 schwarze Exp $
+.\"
+.\" Copyright (c) 2013 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: January 30 2015 $
+.Dt TBL 3
+.Os
+.Sh NAME
+.Nm tbl_alloc ,
+.Nm tbl_read ,
+.Nm tbl_restart ,
+.Nm tbl_span ,
+.Nm tbl_end ,
+.Nm tbl_free
+.Nd roff table parser library for mandoc
+.Sh SYNOPSIS
+.In mandoc.h
+.In libmandoc.h
+.In libroff.h
+.Ft struct tbl_node *
+.Fo tbl_alloc
+.Fa "int pos"
+.Fa "int line"
+.Fa "struct mparse *parse"
+.Fc
+.Ft enum rofferr
+.Fo tbl_read
+.Fa "struct tbl_node *tbl"
+.Fa "int ln"
+.Fa "const char *p"
+.Fa "int offs"
+.Fc
+.Ft void
+.Fo tbl_restart
+.Fa "int line"
+.Fa "int pos"
+.Fa "struct tbl_node *tbl"
+.Fc
+.Ft const struct tbl_span *
+.Fo tbl_span
+.Fa "struct tbl_node *tbl"
+.Fc
+.Ft void
+.Fo tbl_end
+.Fa "struct tbl_node **tblp"
+.Fc
+.Ft void
+.Fo tbl_free
+.Fa "struct tbl_node *tbl"
+.Fc
+.Sh DESCRIPTION
+This library is tightly integrated into the
+.Xr mandoc 1
+utility and not designed for stand-alone use.
+The present manual is intended as a reference for developers working on
+.Xr mandoc 1 .
+.Ss Data structures
+Unless otherwise noted, all of the following data structures are defined in
+.In mandoc.h
+and are deleted in
+.Fn tbl_free .
+.Bl -tag -width Ds
+.It Vt struct tbl_node
+This structure describes a complete table.
+It is defined in
+.In libroff.h ,
+created in
+.Fn tbl_alloc ,
+and stored in the members
+.Fa first_tbl ,
+.Fa last_tbl ,
+and
+.Fa tbl
+of
+.Vt struct roff Bq Pa roff.c .
+.Pp
+The
+.Fa first_span ,
+.Fa current_span ,
+.Fa last_span ,
+and
+.Fa next
+members may be
+.Dv NULL .
+The
+.Fa first_row
+and
+.Fa last_row
+members may be
+.Dv NULL ,
+but if there is a span, the function
+.Fn tbl_layout
+guarantees that these pointers are not
+.Dv NULL .
+The function
+.Fn tbl_alloc
+guarantees that the
+.Fa parse
+member is not
+.Dv NULL .
+.It Vt struct tbl_opts
+This structure describes the options of one table.
+It is used as a substructure of
+.Vt struct tbl_node
+and thus created and deleted together with it.
+It is filled in
+.Fn tbl_options .
+.It Vt struct tbl_row
+This structure describes one layout line in a table
+by maintaining a list of all the cells in that line.
+It is allocated and filled in
+.Fn row Bq Pa tbl_layout.c
+and referenced from the
+.Fa layout
+member of
+.Vt struct tbl_node .
+.Pp
+The
+.Fa next
+member may be
+.Dv NULL .
+The function
+.Fn tbl_layout
+guarantees that the
+.Fa first
+and
+.Fa last
+members are not NULL.
+.It Vt struct tbl_cell
+This structure describes one layout cell in a table,
+in particular its alignment, membership in spans, and
+usage for lines.
+It is allocated and filled in
+.Fn cell_alloc Bq Pa tbl_layout.c
+and referenced from the
+.Fa first
+and
+.Fa last
+members of
+.Vt struct tbl_row .
+.Pp
+The
+.Fa next
+member may be
+.Dv NULL .
+.It Vt struct tbl_span
+This structure describes one data line in a table
+by maintaining a list of all data cells in that line
+or by specifying that it is a horizontal line.
+It is allocated and filled in
+.Fn newspan Bq Pa tbl_data.c
+which is called from
+.Fn tbl_data
+and referenced from the
+.Fa first_span ,
+.Fa current_span ,
+and
+.Fa last_span
+members of
+.Vt struct tbl_node ,
+and from the
+.Fa span
+members of
+.Vt struct man_node
+and
+.Vt struct mdoc_node
+from
+.In man.h
+and
+.In mdoc.h .
+.Pp
+The
+.Fa first ,
+.Fa last ,
+.Fa prev ,
+and
+.Fa next
+members may be
+.Dv NULL .
+The function
+.Fn newspan Bq Pa tbl_data.c
+guarantees that the
+.Fa opts
+and
+.Fa layout
+members are not
+.Dv NULL .
+.It Vt struct tbl_dat
+This structure describes one data cell in a table by specifying
+whether it contains a line or data, whether it spans additional
+layout cells, and by storing the data.
+It is allocated and filled in
+.Fn tbl_data
+and referenced from the
+.Fa first
+and
+.Fa last
+members of
+.Vt struct tbl_span .
+.Pp
+The
+.Fa string
+and
+.Fa next
+members may be
+.Dv NULL .
+The function
+.Fn getdata
+guarantees that the
+.Fa layout
+member is not
+.Dv NULL .
+.El
+.Ss Interface functions
+The following functions are implemented in
+.Pa tbl.c ,
+and all callers in
+.Pa roff.c .
+.Bl -tag -width Ds
+.It Fn tbl_alloc
+Allocates, initializes, and returns a new
+.Vt struct tbl_node .
+Called from
+.Fn roff_TS .
+.It Fn tbl_read
+Dispatches to
+.Fn tbl_option ,
+.Fn tbl_layout ,
+.Fn tbl_cdata ,
+and
+.Fn tbl_data ,
+see below.
+Called from
+.Fn roff_parseln .
+.It Fn tbl_restart
+Resets the
+.Fa part
+member of
+.Vt struct tbl_node
+to
+.Dv TBL_PART_LAYOUT .
+Called from
+.Fn roff_T_ .
+.It Fn tbl_span
+On the first call, return the first
+.Vt struct tbl_span ;
+for later calls, return the next one or
+.Dv NULL .
+Called from
+.Fn roff_span .
+.It Fn tbl_end
+Flags the last span as
+.Dv TBL_SPAN_LAST
+and clears the pointer passed as an argment.
+Called from
+.Fn roff_TE
+and
+.Fn roff_endparse .
+.It Fn tbl_free
+Frees the specified
+.Vt struct tbl_node
+and all the tbl_row, tbl_cell, tbl_span, and tbl_dat structures
+referenced from it.
+Called from
+.Fn roff_free
+and
+.Fn roff_reset .
+.El
+.Ss Private functions
+.Bl -tag -width Ds
+.It Ft int Fn tbl_options "struct tbl_node *tbl" "int ln" "const char *p"
+Parses the options line into
+.Vt struct tbl_opts .
+Implemented in
+.Pa tbl_opts.c ,
+called from
+.Fn tbl_read .
+.It Ft int Fn tbl_layout "struct tbl_node *tbl" "int ln" "const char *p"
+Allocates and fills one
+.Vt struct tbl_row
+for each layout line and one
+.Vt struct tbl_cell
+for each layout cell.
+Implemented in
+.Pa tbl_layout.c ,
+called from
+.Fn tbl_read .
+.It Ft int Fn tbl_data "struct tbl_node *tbl" "int ln" "const char *p"
+Allocates one
+.Vt struct tbl_span
+for each data line and calls
+.Fn getdata
+for each data cell.
+Implemented in
+.Pa tbl_data.c ,
+called from
+.Fn tbl_read .
+.It Ft int Fn tbl_cdata "struct tbl_node *tbl" "int ln" "const char *p"
+Continues parsing a data line:
+When finding
+.Sq T} ,
+switches back to
+.Dv TBL_PART_DATA
+mode and calls
+.Fn getdata
+if there are more data cells on the line.
+Otherwise, appends the data to the current data cell.
+Implemented in
+.Pa tbl_data.c ,
+called from
+.Fn tbl_read .
+.It Xo
+.Ft int
+.Fo getdata
+.Fa "struct tbl_node *tbl"
+.Fa "struct tbl_span *dp"
+.Fa "int ln"
+.Fa "const char *p"
+.Fa "int *pos"
+.Fc
+.Xc
+Parses one data cell into one
+.Vt struct tbl_dat .
+Implemented in
+.Pa tbl_data.c ,
+called from
+.Fn tbl_data
+and
+.Fn tbl_cdata .
+.El
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr mandoc 3 ,
+.Xr tbl 7
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm tbl
+library was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+with contributions from
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .

Added: vendor/mandoc/dist/tbl.7
===================================================================
--- vendor/mandoc/dist/tbl.7	                        (rev 0)
+++ vendor/mandoc/dist/tbl.7	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,432 @@
+.\"	$Id: tbl.7,v 1.28 2017/06/28 00:59:57 schwarze Exp $
+.\"
+.\" Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+.\" Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: June 28 2017 $
+.Dt TBL 7
+.Os
+.Sh NAME
+.Nm tbl
+.Nd tbl language reference for mandoc
+.Sh DESCRIPTION
+The
+.Nm tbl
+language formats tables.
+It is used within
+.Xr mdoc 7
+and
+.Xr man 7
+pages.
+This manual describes the subset of the
+.Nm
+language accepted by the
+.Xr mandoc 1
+utility.
+.Pp
+Each table is started with a
+.Xr roff 7
+.Ic \&TS
+macro, consist of at most one line of
+.Sx Options ,
+one or more
+.Sx Layout
+lines, one or more
+.Sx Data
+lines, and ends with a
+.Ic \&TE
+macro.
+All input must be 7-bit ASCII.
+.Ss Options
+If the first input line of a table ends with a semicolon, it contains
+case-insensitive options separated by spaces, tabs, or commas.
+Otherwise, it is interpreted as the first
+.Sx Layout
+line.
+.Pp
+The following options are available.
+Some of them require arguments enclosed in parentheses:
+.Bl -tag -width Ds
+.It Cm allbox
+Draw a single-line box around each table cell.
+.It Cm box
+Draw a single-line box around the table.
+For GNU compatibility, this may also be invoked with
+.Cm frame .
+.It Cm center
+Center the table instead of left-adjusting it.
+For GNU compatibility, this may also be invoked with
+.Cm centre .
+.It Cm decimalpoint
+Use the single-character argument as the decimal point with the
+.Cm n
+layout key.
+This is a GNU extension.
+.It Cm delim
+Use the two characters of the argument as
+.Xr eqn 7
+delimiters.
+Currently unsupported.
+.It Cm doublebox
+Draw a double-line box around the table.
+For GNU compatibility, this may also be invoked with
+.Cm doubleframe .
+.It Cm expand
+Increase the width of the table to the current line length.
+Currently ignored.
+.It Cm linesize
+Draw lines with the point size given by the unsigned integer argument.
+Currently ignored.
+.It Cm nokeep
+Allow page breaks within the table.
+This is a GNU extension and currently ignored.
+.It Cm nospaces
+Ignore leading and trailing spaces in data cells.
+This is a GNU extension and currently ignored.
+.It Cm nowarn
+Suppress warnings about tables exceeding the current line length.
+This is a GNU extension and currently ignored.
+.It Cm tab
+Use the single-character argument as a delimiter between data cells.
+By default, the horizontal tabulator character is used.
+.El
+.Ss Layout
+The table layout follows an
+.Sx Options
+line or a
+.Xr roff 7
+.Ic \&TS
+or
+.Ic \&T&
+macro.
+Each layout line specifies how one line of
+.Sx Data
+is formatted.
+The last layout line ends with a full stop.
+It also applies to all remaining data lines.
+Multiple layout lines can be joined by commas on a single physical
+input line.
+.Pp
+Each layout line consists of one or more layout cell specifications,
+optionally separated by whitespace.
+The following case-insensitive key characters start a new cell
+specification:
+.Bl -tag -width 2n
+.It Cm c
+Center the string in this cell.
+.It Cm r
+Right-justify the string in this cell.
+.It Cm l
+Left-justify the string in this cell.
+.It Cm n
+Justify a number around its last decimal point.
+If no decimal point is found in the number,
+it is assumed to trail the number.
+.It Cm s
+Horizontally span columns from the last
+.Pf non- Cm s
+layout cell.
+It is an error if a column span follows a
+.Cm _
+or
+.Cm =
+cell, or comes first on a layout line.
+The combined cell as a whole consumes only one cell
+of the corresponding data line.
+.It Cm a
+Left-justify a string and pad with one space.
+.It Cm ^
+Vertically span rows from the last
+.Pf non- Cm ^
+layout cell.
+It is an error to invoke a vertical span on the first layout line.
+Unlike a horizontal span, a vertical span consumes a data cell
+and discards the content.
+.It Cm _
+Draw a single horizontal line in this cell.
+This consumes a data cell and discards the content.
+It may also be invoked with
+.Cm \- .
+.It Cm =
+Draw a double horizontal line in this cell.
+This consumes a data cell and discards the content.
+.El
+.Pp
+Each cell key may be followed by zero or more of the following
+case-insensitive modifiers:
+.Bl -tag -width 2n
+.It Cm b
+Use a bold font for the contents of this cell.
+.It Cm d
+Move content down to the last row of this vertical span.
+Currently ignored.
+.It Cm e
+Make this column wider to match the maximum width
+of any other column also having the
+.Cm e
+modifier.
+.It Cm f
+The next character selects the font to use for this cell.
+See the
+.Xr roff 7
+manual for supported one-character font names.
+.It Cm i
+Use an italic font for the contents of this cell.
+.It Cm m
+Specify a cell start macro.
+This is a GNU extension and currently unsupported.
+.It Cm p
+Set the point size to the following unsigned argument,
+or change it by the following signed argument.
+Currently ignored.
+.It Cm v
+Set the vertical line spacing to the following unsigned argument,
+or change it by the following signed argument.
+Currently ignored.
+.It Cm t
+Do not vertically center content in this vertical span,
+leave it in the top row.
+Currently ignored.
+.It Cm u
+Move cell content up by half a table row.
+Currently ignored.
+.It Cm w
+Specify a minimum column width.
+.It Cm x
+After determining the width of all other columns, distribute the
+rest of the line length among all columns having the
+.Cm x
+modifier.
+.It Cm z
+Do not use this cell for determining the width of this column.
+.It Cm \&|
+Draw a single vertical line to the right of this cell.
+.It Cm ||
+Draw a double vertical line to the right of this cell.
+.El
+.Pp
+If a modifier consists of decimal digits,
+it specifies a minimum spacing in units of
+.Cm n
+between this column and the next column to the right.
+The default is 3.
+If there is a vertical line, it is drawn inside the spacing.
+.Ss Data
+The data section follows the last
+.Sx Layout
+line.
+Each data line consists of one or more data cells, delimited by
+.Cm tab
+characters.
+.Pp
+If a data cells contains only the single character
+.Ql _
+or
+.Ql = ,
+a single or double horizontal line is drawn across the cell,
+joining its neighbours.
+If a data cells contains only the two character sequence
+.Ql \e_
+or
+.Ql \e= ,
+a single or double horizontal line is drawn inside the cell,
+not joining its neighbours.
+If a data line contains nothing but the single character
+.Ql _
+or
+.Ql = ,
+a horizontal line across the whole table is inserted
+without consuming a layout row.
+.Pp
+In place of any data cell, a text block can be used.
+It starts with
+.Ic \&T{
+at the end of a physical input line.
+Input line breaks inside the text block
+neither end the text block nor its data cell.
+It only ends if
+.Ic \&T}
+occurs at the beginning of a physical input line and is followed
+by an end-of-cell indicator.
+If the
+.Ic \&T}
+is followed by the end of the physical input line, the text block,
+the data cell, and the data line ends at this point.
+If the
+.Ic \&T}
+is followed by the
+.Cm tab
+character, only the text block and the data cell end,
+but the data line continues with the data cell following the
+.Cm tab
+character.
+If
+.Ic \&T}
+is followed by any other character, it does not end the text block,
+which instead continues to the following physical input line.
+.Sh EXAMPLES
+String justification and font selection:
+.Bd -literal -offset indent
+\&.TS
+rb c  lb
+r  ci l.
+r	center	l
+ri	ce	le
+right	c	left
+\&.TE
+.Ed
+.Bd -filled -offset indent
+.TS
+rb c  lb
+r  ci l.
+r	center	l
+ri	ce	le
+right	c	left
+.TE
+.Ed
+.Pp
+Some ports in
+.Ox 6.1
+to show number alignment and line drawing:
+.Bd -literal -offset indent
+\&.TS
+box tab(:);
+r| l
+r  n.
+software:version
+_
+AFL:2.39b
+Mutt:1.8.0
+Ruby:1.8.7.374
+TeX Live:2015
+\&.TE
+.Ed
+.Bd -filled -offset indent
+.TS
+box tab(:);
+r| l
+r  n.
+software:version
+_
+AFL:2.39b
+Mutt:1.8.0
+Ruby:1.8.7.374
+TeX Live:2015 
+.TE
+.Ed
+.sp 2v
+Spans and skipping width calculations:
+.Bd -literal -offset indent
+\&.TS
+box tab(:);
+lz  s | rt
+lt| cb| ^
+^ | rz  s.
+left:r
+l:center:
+:right
+\&.TE
+.Ed
+.Bd -filled -offset indent
+.TS
+box tab(:);
+lz  s | rt
+lt| cb| ^
+^ | rz  s.
+left:r
+l:center:
+:right
+.TE
+.Ed
+.sp 2v
+Text blocks, specifying spacings and specifying and equalizing
+column widths, putting lines into individual cells, and overriding
+.Cm allbox :
+.Bd -literal -offset indent
+\&.TS
+allbox tab(:);
+le le||7 lw10.
+The fourth line:_:line 1
+of this column:=:line 2
+determines:\_:line 3
+the column width.:T{
+This text is too wide to fit into a column of width 17.
+T}:line 4
+T{
+No break here.
+T}::line 5
+\&.TE
+.Ed
+.Bd -filled -offset indent
+.TS
+allbox tab(:);
+le le||7 lw10.
+The fourth line:_:line 1
+of this column:=:line 2
+determines:\_:line 3
+the column width.:T{
+This text is too wide to fit into a column of width 17.
+T}:line 4
+T{
+No break here.
+T}::line 5
+.TE
+.Ed
+.sp 2v
+These examples were constructed to demonstrate many
+.Nm
+features in a compact way.
+In real manual pages, keep tables as simple as possible:
+Like that, they usually look better, are less fragile, and more portable.
+.Sh COMPATIBILITY
+The
+.Xr mandoc 1
+implementation of
+.Nm
+doesn't support
+.Xr mdoc 7
+and
+.Xr man 7
+macros and
+.Xr eqn 7
+equations inside tables.
+.Sh SEE ALSO
+.Xr mandoc 1 ,
+.Xr man 7 ,
+.Xr mandoc_char 7 ,
+.Xr mdoc 7 ,
+.Xr roff 7
+.Rs
+.%A M. E. Lesk
+.%T Tbl\(emA Program to Format Tables
+.%D June 11, 1976
+.Re
+.Sh HISTORY
+The tbl utility, a preprocessor for troff, was originally written by M.
+E. Lesk at Bell Labs in 1975.
+The GNU reimplementation of tbl, part of the groff package, was released
+in 1990 by James Clark.
+A standalone tbl implementation was written by Kristaps Dzonsons in
+2010.
+This formed the basis of the implementation that is part of the
+.Xr mandoc 1
+utility.
+.Sh AUTHORS
+This
+.Nm
+reference was written by
+.An Kristaps Dzonsons Aq Mt kristaps at bsd.lv
+and
+.An Ingo Schwarze Aq Mt schwarze at openbsd.org .

Added: vendor/mandoc/dist/tbl.c
===================================================================
--- vendor/mandoc/dist/tbl.c	                        (rev 0)
+++ vendor/mandoc/dist/tbl.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,179 @@
+/*	$Id: tbl.c,v 1.42 2017/07/08 17:52:50 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011, 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "libmandoc.h"
+#include "libroff.h"
+
+
+void
+tbl_read(struct tbl_node *tbl, int ln, const char *p, int pos)
+{
+	const char	*cp;
+	int		 active;
+
+	/*
+	 * In the options section, proceed to the layout section
+	 * after a semicolon, or right away if there is no semicolon.
+	 * Ignore semicolons in arguments.
+	 */
+
+	if (tbl->part == TBL_PART_OPTS) {
+		tbl->part = TBL_PART_LAYOUT;
+		active = 1;
+		for (cp = p + pos; *cp != '\0'; cp++) {
+			switch (*cp) {
+			case '(':
+				active = 0;
+				continue;
+			case ')':
+				active = 1;
+				continue;
+			case ';':
+				if (active)
+					break;
+				continue;
+			default:
+				continue;
+			}
+			break;
+		}
+		if (*cp == ';') {
+			tbl_option(tbl, ln, p, &pos);
+			if (p[pos] == '\0')
+				return;
+		}
+	}
+
+	/* Process the other section types.  */
+
+	switch (tbl->part) {
+	case TBL_PART_LAYOUT:
+		tbl_layout(tbl, ln, p, pos);
+		break;
+	case TBL_PART_CDATA:
+		tbl_cdata(tbl, ln, p, pos);
+		break;
+	default:
+		tbl_data(tbl, ln, p, pos);
+		break;
+	}
+}
+
+struct tbl_node *
+tbl_alloc(int pos, int line, struct mparse *parse)
+{
+	struct tbl_node	*tbl;
+
+	tbl = mandoc_calloc(1, sizeof(*tbl));
+	tbl->line = line;
+	tbl->pos = pos;
+	tbl->parse = parse;
+	tbl->part = TBL_PART_OPTS;
+	tbl->opts.tab = '\t';
+	tbl->opts.decimal = '.';
+	return tbl;
+}
+
+void
+tbl_free(struct tbl_node *tbl)
+{
+	struct tbl_row	*rp;
+	struct tbl_cell	*cp;
+	struct tbl_span	*sp;
+	struct tbl_dat	*dp;
+
+	while ((rp = tbl->first_row) != NULL) {
+		tbl->first_row = rp->next;
+		while (rp->first != NULL) {
+			cp = rp->first;
+			rp->first = cp->next;
+			free(cp->wstr);
+			free(cp);
+		}
+		free(rp);
+	}
+
+	while ((sp = tbl->first_span) != NULL) {
+		tbl->first_span = sp->next;
+		while (sp->first != NULL) {
+			dp = sp->first;
+			sp->first = dp->next;
+			free(dp->string);
+			free(dp);
+		}
+		free(sp);
+	}
+
+	free(tbl);
+}
+
+void
+tbl_restart(int line, int pos, struct tbl_node *tbl)
+{
+	if (tbl->part == TBL_PART_CDATA)
+		mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse,
+		    line, pos, "T&");
+
+	tbl->part = TBL_PART_LAYOUT;
+	tbl->line = line;
+	tbl->pos = pos;
+}
+
+const struct tbl_span *
+tbl_span(struct tbl_node *tbl)
+{
+	struct tbl_span	 *span;
+
+	assert(tbl);
+	span = tbl->current_span ? tbl->current_span->next
+				 : tbl->first_span;
+	if (span)
+		tbl->current_span = span;
+	return span;
+}
+
+int
+tbl_end(struct tbl_node *tbl)
+{
+	struct tbl_span *sp;
+
+	if (tbl->part == TBL_PART_CDATA)
+		mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse,
+		    tbl->line, tbl->pos, "TE");
+
+	sp = tbl->first_span;
+	while (sp != NULL && sp->first == NULL)
+		sp = sp->next;
+	if (sp == NULL) {
+		mandoc_msg(MANDOCERR_TBLDATA_NONE, tbl->parse,
+		    tbl->line, tbl->pos, NULL);
+		return 0;
+	}
+	return 1;
+}

Added: vendor/mandoc/dist/tbl_data.c
===================================================================
--- vendor/mandoc/dist/tbl_data.c	                        (rev 0)
+++ vendor/mandoc/dist/tbl_data.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,241 @@
+/*	$Id: tbl_data.c,v 1.45 2017/07/08 17:52:50 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "libmandoc.h"
+#include "libroff.h"
+
+static	void		 getdata(struct tbl_node *, struct tbl_span *,
+				int, const char *, int *);
+static	struct tbl_span	*newspan(struct tbl_node *, int,
+				struct tbl_row *);
+
+
+static void
+getdata(struct tbl_node *tbl, struct tbl_span *dp,
+		int ln, const char *p, int *pos)
+{
+	struct tbl_dat	*dat;
+	struct tbl_cell	*cp;
+	int		 sv;
+
+	/* Advance to the next layout cell, skipping spanners. */
+
+	cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next;
+	while (cp != NULL && cp->pos == TBL_CELL_SPAN)
+		cp = cp->next;
+
+	/*
+	 * If the current layout row is out of cells, allocate
+	 * a new cell if another row of the table has at least
+	 * this number of columns, or discard the input if we
+	 * are beyond the last column of the table as a whole.
+	 */
+
+	if (cp == NULL) {
+		if (dp->layout->last->col + 1 < dp->opts->cols) {
+			cp = mandoc_calloc(1, sizeof(*cp));
+			cp->pos = TBL_CELL_LEFT;
+			dp->layout->last->next = cp;
+			cp->col = dp->layout->last->col + 1;
+			dp->layout->last = cp;
+		} else {
+			mandoc_msg(MANDOCERR_TBLDATA_EXTRA, tbl->parse,
+			    ln, *pos, p + *pos);
+			while (p[*pos])
+				(*pos)++;
+			return;
+		}
+	}
+
+	dat = mandoc_calloc(1, sizeof(*dat));
+	dat->layout = cp;
+	dat->pos = TBL_DATA_NONE;
+	dat->spans = 0;
+	for (cp = cp->next; cp != NULL; cp = cp->next)
+		if (cp->pos == TBL_CELL_SPAN)
+			dat->spans++;
+		else
+			break;
+
+	if (dp->last == NULL)
+		dp->first = dat;
+	else
+		dp->last->next = dat;
+	dp->last = dat;
+
+	sv = *pos;
+	while (p[*pos] && p[*pos] != tbl->opts.tab)
+		(*pos)++;
+
+	/*
+	 * Check for a continued-data scope opening.  This consists of a
+	 * trailing `T{' at the end of the line.  Subsequent lines,
+	 * until a standalone `T}', are included in our cell.
+	 */
+
+	if (*pos - sv == 2 && p[sv] == 'T' && p[sv + 1] == '{') {
+		tbl->part = TBL_PART_CDATA;
+		return;
+	}
+
+	dat->string = mandoc_strndup(p + sv, *pos - sv);
+
+	if (p[*pos])
+		(*pos)++;
+
+	if ( ! strcmp(dat->string, "_"))
+		dat->pos = TBL_DATA_HORIZ;
+	else if ( ! strcmp(dat->string, "="))
+		dat->pos = TBL_DATA_DHORIZ;
+	else if ( ! strcmp(dat->string, "\\_"))
+		dat->pos = TBL_DATA_NHORIZ;
+	else if ( ! strcmp(dat->string, "\\="))
+		dat->pos = TBL_DATA_NDHORIZ;
+	else
+		dat->pos = TBL_DATA_DATA;
+
+	if ((dat->layout->pos == TBL_CELL_HORIZ ||
+	    dat->layout->pos == TBL_CELL_DHORIZ ||
+	    dat->layout->pos == TBL_CELL_DOWN) &&
+	    dat->pos == TBL_DATA_DATA && *dat->string != '\0')
+		mandoc_msg(MANDOCERR_TBLDATA_SPAN,
+		    tbl->parse, ln, sv, dat->string);
+}
+
+void
+tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos)
+{
+	struct tbl_dat	*dat;
+	size_t		 sz;
+
+	dat = tbl->last_span->last;
+
+	if (p[pos] == 'T' && p[pos + 1] == '}') {
+		pos += 2;
+		if (p[pos] == tbl->opts.tab) {
+			tbl->part = TBL_PART_DATA;
+			pos++;
+			while (p[pos] != '\0')
+				getdata(tbl, tbl->last_span, ln, p, &pos);
+			return;
+		} else if (p[pos] == '\0') {
+			tbl->part = TBL_PART_DATA;
+			return;
+		}
+
+		/* Fallthrough: T} is part of a word. */
+	}
+
+	dat->pos = TBL_DATA_DATA;
+	dat->block = 1;
+
+	if (dat->string != NULL) {
+		sz = strlen(p + pos) + strlen(dat->string) + 2;
+		dat->string = mandoc_realloc(dat->string, sz);
+		(void)strlcat(dat->string, " ", sz);
+		(void)strlcat(dat->string, p + pos, sz);
+	} else
+		dat->string = mandoc_strdup(p + pos);
+
+	if (dat->layout->pos == TBL_CELL_DOWN)
+		mandoc_msg(MANDOCERR_TBLDATA_SPAN, tbl->parse,
+		    ln, pos, dat->string);
+}
+
+static struct tbl_span *
+newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
+{
+	struct tbl_span	*dp;
+
+	dp = mandoc_calloc(1, sizeof(*dp));
+	dp->line = line;
+	dp->opts = &tbl->opts;
+	dp->layout = rp;
+	dp->prev = tbl->last_span;
+
+	if (dp->prev == NULL) {
+		tbl->first_span = dp;
+		tbl->current_span = NULL;
+	} else
+		dp->prev->next = dp;
+	tbl->last_span = dp;
+
+	return dp;
+}
+
+void
+tbl_data(struct tbl_node *tbl, int ln, const char *p, int pos)
+{
+	struct tbl_row	*rp;
+	struct tbl_cell	*cp;
+	struct tbl_span	*sp;
+
+	rp = (sp = tbl->last_span) == NULL ? tbl->first_row :
+	    sp->pos == TBL_SPAN_DATA && sp->layout->next != NULL ?
+	    sp->layout->next : sp->layout;
+
+	assert(rp != NULL);
+
+	if ( ! strcmp(p, "_")) {
+		sp = newspan(tbl, ln, rp);
+		sp->pos = TBL_SPAN_HORIZ;
+		return;
+	} else if ( ! strcmp(p, "=")) {
+		sp = newspan(tbl, ln, rp);
+		sp->pos = TBL_SPAN_DHORIZ;
+		return;
+	}
+
+	/*
+	 * If the layout row contains nothing but horizontal lines,
+	 * allocate an empty span for it and assign the current span
+	 * to the next layout row accepting data.
+	 */
+
+	while (rp->next != NULL) {
+		if (rp->last->col + 1 < tbl->opts.cols)
+			break;
+		for (cp = rp->first; cp != NULL; cp = cp->next)
+			if (cp->pos != TBL_CELL_HORIZ &&
+			    cp->pos != TBL_CELL_DHORIZ)
+				break;
+		if (cp != NULL)
+			break;
+		sp = newspan(tbl, ln, rp);
+		sp->pos = TBL_SPAN_DATA;
+		rp = rp->next;
+	}
+
+	/* Process a real data row. */
+
+	sp = newspan(tbl, ln, rp);
+	sp->pos = TBL_SPAN_DATA;
+	while (p[pos] != '\0')
+		getdata(tbl, sp, ln, p, &pos);
+}

Added: vendor/mandoc/dist/tbl_html.c
===================================================================
--- vendor/mandoc/dist/tbl_html.c	                        (rev 0)
+++ vendor/mandoc/dist/tbl_html.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,161 @@
+/*	$Id: tbl_html.c,v 1.23 2017/07/31 16:14:10 schwarze Exp $ */
+/*
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "out.h"
+#include "html.h"
+
+static	void	 html_tblopen(struct html *, const struct tbl_span *);
+static	size_t	 html_tbl_len(size_t, void *);
+static	size_t	 html_tbl_strlen(const char *, void *);
+static	size_t	 html_tbl_sulen(const struct roffsu *, void *);
+
+
+static size_t
+html_tbl_len(size_t sz, void *arg)
+{
+	return sz;
+}
+
+static size_t
+html_tbl_strlen(const char *p, void *arg)
+{
+	return strlen(p);
+}
+
+static size_t
+html_tbl_sulen(const struct roffsu *su, void *arg)
+{
+	if (su->scale < 0.0)
+		return 0;
+
+	switch (su->unit) {
+	case SCALE_FS:  /* 2^16 basic units */
+		return su->scale * 65536.0 / 24.0;
+	case SCALE_IN:  /* 10 characters per inch */
+		return su->scale * 10.0;
+	case SCALE_CM:  /* 2.54 cm per inch */
+		return su->scale * 10.0 / 2.54;
+	case SCALE_PC:  /* 6 pica per inch */
+	case SCALE_VS:
+		return su->scale * 10.0 / 6.0;
+	case SCALE_EN:
+	case SCALE_EM:
+		return su->scale;
+	case SCALE_PT:  /* 12 points per pica */
+		return su->scale * 10.0 / 6.0 / 12.0;
+	case SCALE_BU:  /* 24 basic units per character */
+		return su->scale / 24.0;
+	case SCALE_MM:  /* 1/1000 inch */
+		return su->scale / 100.0;
+	default:
+		abort();
+	}
+}
+
+static void
+html_tblopen(struct html *h, const struct tbl_span *sp)
+{
+	struct tag	*t;
+	int		 ic;
+
+	if (h->tbl.cols == NULL) {
+		h->tbl.len = html_tbl_len;
+		h->tbl.slen = html_tbl_strlen;
+		h->tbl.sulen = html_tbl_sulen;
+		tblcalc(&h->tbl, sp, 0, 0);
+	}
+
+	assert(NULL == h->tblt);
+	h->tblt = print_otag(h, TAG_TABLE, "c", "tbl");
+
+	t = print_otag(h, TAG_COLGROUP, "");
+	for (ic = 0; ic < sp->opts->cols; ic++)
+		print_otag(h, TAG_COL, "shw", h->tbl.cols[ic].width);
+	print_tagq(h, t);
+}
+
+void
+print_tblclose(struct html *h)
+{
+
+	assert(h->tblt);
+	print_tagq(h, h->tblt);
+	h->tblt = NULL;
+}
+
+void
+print_tbl(struct html *h, const struct tbl_span *sp)
+{
+	const struct tbl_dat *dp;
+	struct tag	*tt;
+	int		 ic;
+
+	/* Inhibit printing of spaces: we do padding ourselves. */
+
+	if (h->tblt == NULL)
+		html_tblopen(h, sp);
+
+	assert(h->tblt);
+
+	h->flags |= HTML_NONOSPACE;
+	h->flags |= HTML_NOSPACE;
+
+	tt = print_otag(h, TAG_TR, "");
+
+	switch (sp->pos) {
+	case TBL_SPAN_HORIZ:
+	case TBL_SPAN_DHORIZ:
+		print_otag(h, TAG_TD, "?", "colspan", "0");
+		break;
+	default:
+		dp = sp->first;
+		for (ic = 0; ic < sp->opts->cols; ic++) {
+			print_stagq(h, tt);
+			print_otag(h, TAG_TD, "");
+
+			if (dp == NULL || dp->layout->col > ic)
+				continue;
+			if (dp->layout->pos != TBL_CELL_DOWN)
+				if (dp->string != NULL)
+					print_text(h, dp->string);
+			dp = dp->next;
+		}
+		break;
+	}
+
+	print_tagq(h, tt);
+
+	h->flags &= ~HTML_NONOSPACE;
+
+	if (sp->next == NULL) {
+		assert(h->tbl.cols);
+		free(h->tbl.cols);
+		h->tbl.cols = NULL;
+		print_tblclose(h);
+	}
+
+}

Added: vendor/mandoc/dist/tbl_layout.c
===================================================================
--- vendor/mandoc/dist/tbl_layout.c	                        (rev 0)
+++ vendor/mandoc/dist/tbl_layout.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,375 @@
+/*	$Id: tbl_layout.c,v 1.44 2017/06/27 18:25:02 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2012, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "libmandoc.h"
+#include "libroff.h"
+
+struct	tbl_phrase {
+	char		 name;
+	enum tbl_cellt	 key;
+};
+
+static	const struct tbl_phrase keys[] = {
+	{ 'c',		 TBL_CELL_CENTRE },
+	{ 'r',		 TBL_CELL_RIGHT },
+	{ 'l',		 TBL_CELL_LEFT },
+	{ 'n',		 TBL_CELL_NUMBER },
+	{ 's',		 TBL_CELL_SPAN },
+	{ 'a',		 TBL_CELL_LONG },
+	{ '^',		 TBL_CELL_DOWN },
+	{ '-',		 TBL_CELL_HORIZ },
+	{ '_',		 TBL_CELL_HORIZ },
+	{ '=',		 TBL_CELL_DHORIZ }
+};
+
+#define KEYS_MAX ((int)(sizeof(keys)/sizeof(keys[0])))
+
+static	void		 mods(struct tbl_node *, struct tbl_cell *,
+				int, const char *, int *);
+static	void		 cell(struct tbl_node *, struct tbl_row *,
+				int, const char *, int *);
+static	struct tbl_cell *cell_alloc(struct tbl_node *, struct tbl_row *,
+				enum tbl_cellt);
+
+
+static void
+mods(struct tbl_node *tbl, struct tbl_cell *cp,
+		int ln, const char *p, int *pos)
+{
+	char		*endptr;
+	size_t		 sz;
+
+mod:
+	while (p[*pos] == ' ' || p[*pos] == '\t')
+		(*pos)++;
+
+	/* Row delimiters and cell specifiers end modifier lists. */
+
+	if (strchr(".,-=^_ACLNRSaclnrs", p[*pos]) != NULL)
+		return;
+
+	/* Throw away parenthesised expression. */
+
+	if ('(' == p[*pos]) {
+		(*pos)++;
+		while (p[*pos] && ')' != p[*pos])
+			(*pos)++;
+		if (')' == p[*pos]) {
+			(*pos)++;
+			goto mod;
+		}
+		mandoc_msg(MANDOCERR_TBLLAYOUT_PAR, tbl->parse,
+		    ln, *pos, NULL);
+		return;
+	}
+
+	/* Parse numerical spacing from modifier string. */
+
+	if (isdigit((unsigned char)p[*pos])) {
+		cp->spacing = strtoull(p + *pos, &endptr, 10);
+		*pos = endptr - p;
+		goto mod;
+	}
+
+	switch (tolower((unsigned char)p[(*pos)++])) {
+	case 'b':
+		cp->flags |= TBL_CELL_BOLD;
+		goto mod;
+	case 'd':
+		cp->flags |= TBL_CELL_BALIGN;
+		goto mod;
+	case 'e':
+		cp->flags |= TBL_CELL_EQUAL;
+		goto mod;
+	case 'f':
+		break;
+	case 'i':
+		cp->flags |= TBL_CELL_ITALIC;
+		goto mod;
+	case 'm':
+		mandoc_msg(MANDOCERR_TBLLAYOUT_MOD, tbl->parse,
+		    ln, *pos, "m");
+		goto mod;
+	case 'p':
+	case 'v':
+		if (p[*pos] == '-' || p[*pos] == '+')
+			(*pos)++;
+		while (isdigit((unsigned char)p[*pos]))
+			(*pos)++;
+		goto mod;
+	case 't':
+		cp->flags |= TBL_CELL_TALIGN;
+		goto mod;
+	case 'u':
+		cp->flags |= TBL_CELL_UP;
+		goto mod;
+	case 'w':
+		sz = 0;
+		if (p[*pos] == '(') {
+			(*pos)++;
+			while (p[*pos + sz] != '\0' && p[*pos + sz] != ')')
+				sz++;
+		} else
+			while (isdigit((unsigned char)p[*pos + sz]))
+				sz++;
+		if (sz) {
+			free(cp->wstr);
+			cp->wstr = mandoc_strndup(p + *pos, sz);
+			*pos += sz;
+			if (p[*pos] == ')')
+				(*pos)++;
+		}
+		goto mod;
+	case 'x':
+		cp->flags |= TBL_CELL_WMAX;
+		goto mod;
+	case 'z':
+		cp->flags |= TBL_CELL_WIGN;
+		goto mod;
+	case '|':
+		if (cp->vert < 2)
+			cp->vert++;
+		else
+			mandoc_msg(MANDOCERR_TBLLAYOUT_VERT,
+			    tbl->parse, ln, *pos - 1, NULL);
+		goto mod;
+	default:
+		mandoc_vmsg(MANDOCERR_TBLLAYOUT_CHAR, tbl->parse,
+		    ln, *pos - 1, "%c", p[*pos - 1]);
+		goto mod;
+	}
+
+	/* Ignore parenthised font names for now. */
+
+	if (p[*pos] == '(')
+		goto mod;
+
+	/* Support only one-character font-names for now. */
+
+	if (p[*pos] == '\0' || (p[*pos + 1] != ' ' && p[*pos + 1] != '.')) {
+		mandoc_vmsg(MANDOCERR_FT_BAD, tbl->parse,
+		    ln, *pos, "TS %s", p + *pos - 1);
+		if (p[*pos] != '\0')
+			(*pos)++;
+		if (p[*pos] != '\0')
+			(*pos)++;
+		goto mod;
+	}
+
+	switch (p[(*pos)++]) {
+	case '3':
+	case 'B':
+		cp->flags |= TBL_CELL_BOLD;
+		goto mod;
+	case '2':
+	case 'I':
+		cp->flags |= TBL_CELL_ITALIC;
+		goto mod;
+	case '1':
+	case 'R':
+		goto mod;
+	default:
+		mandoc_vmsg(MANDOCERR_FT_BAD, tbl->parse,
+		    ln, *pos - 1, "TS f%c", p[*pos - 1]);
+		goto mod;
+	}
+}
+
+static void
+cell(struct tbl_node *tbl, struct tbl_row *rp,
+		int ln, const char *p, int *pos)
+{
+	int		 i;
+	enum tbl_cellt	 c;
+
+	/* Handle leading vertical lines */
+
+	while (p[*pos] == ' ' || p[*pos] == '\t' || p[*pos] == '|') {
+		if (p[*pos] == '|') {
+			if (rp->vert < 2)
+				rp->vert++;
+			else
+				mandoc_msg(MANDOCERR_TBLLAYOUT_VERT,
+				    tbl->parse, ln, *pos, NULL);
+		}
+		(*pos)++;
+	}
+
+again:
+	while (p[*pos] == ' ' || p[*pos] == '\t')
+		(*pos)++;
+
+	if (p[*pos] == '.' || p[*pos] == '\0')
+		return;
+
+	/* Parse the column position (`c', `l', `r', ...). */
+
+	for (i = 0; i < KEYS_MAX; i++)
+		if (tolower((unsigned char)p[*pos]) == keys[i].name)
+			break;
+
+	if (i == KEYS_MAX) {
+		mandoc_vmsg(MANDOCERR_TBLLAYOUT_CHAR, tbl->parse,
+		    ln, *pos, "%c", p[*pos]);
+		(*pos)++;
+		goto again;
+	}
+	c = keys[i].key;
+
+	/* Special cases of spanners. */
+
+	if (c == TBL_CELL_SPAN) {
+		if (rp->last == NULL)
+			mandoc_msg(MANDOCERR_TBLLAYOUT_SPAN,
+			    tbl->parse, ln, *pos, NULL);
+		else if (rp->last->pos == TBL_CELL_HORIZ ||
+		    rp->last->pos == TBL_CELL_DHORIZ)
+			c = rp->last->pos;
+	} else if (c == TBL_CELL_DOWN && rp == tbl->first_row)
+		mandoc_msg(MANDOCERR_TBLLAYOUT_DOWN,
+		    tbl->parse, ln, *pos, NULL);
+
+	(*pos)++;
+
+	/* Allocate cell then parse its modifiers. */
+
+	mods(tbl, cell_alloc(tbl, rp, c), ln, p, pos);
+}
+
+void
+tbl_layout(struct tbl_node *tbl, int ln, const char *p, int pos)
+{
+	struct tbl_row	*rp;
+
+	rp = NULL;
+	for (;;) {
+		/* Skip whitespace before and after each cell. */
+
+		while (p[pos] == ' ' || p[pos] == '\t')
+			pos++;
+
+		switch (p[pos]) {
+		case ',':  /* Next row on this input line. */
+			pos++;
+			rp = NULL;
+			continue;
+		case '\0':  /* Next row on next input line. */
+			return;
+		case '.':  /* End of layout. */
+			pos++;
+			tbl->part = TBL_PART_DATA;
+
+			/*
+			 * When the layout is completely empty,
+			 * default to one left-justified column.
+			 */
+
+			if (tbl->first_row == NULL) {
+				tbl->first_row = tbl->last_row =
+				    mandoc_calloc(1, sizeof(*rp));
+			}
+			if (tbl->first_row->first == NULL) {
+				mandoc_msg(MANDOCERR_TBLLAYOUT_NONE,
+				    tbl->parse, ln, pos, NULL);
+				cell_alloc(tbl, tbl->first_row,
+				    TBL_CELL_LEFT);
+				if (tbl->opts.lvert < tbl->first_row->vert)
+					tbl->opts.lvert = tbl->first_row->vert;
+				return;
+			}
+
+			/*
+			 * Search for the widest line
+			 * along the left and right margins.
+			 */
+
+			for (rp = tbl->first_row; rp; rp = rp->next) {
+				if (tbl->opts.lvert < rp->vert)
+					tbl->opts.lvert = rp->vert;
+				if (rp->last != NULL &&
+				    rp->last->col + 1 == tbl->opts.cols &&
+				    tbl->opts.rvert < rp->last->vert)
+					tbl->opts.rvert = rp->last->vert;
+
+				/* If the last line is empty, drop it. */
+
+				if (rp->next != NULL &&
+				    rp->next->first == NULL) {
+					free(rp->next);
+					rp->next = NULL;
+					tbl->last_row = rp;
+				}
+			}
+			return;
+		default:  /* Cell. */
+			break;
+		}
+
+		/*
+		 * If the last line had at least one cell,
+		 * start a new one; otherwise, continue it.
+		 */
+
+		if (rp == NULL) {
+			if (tbl->last_row == NULL ||
+			    tbl->last_row->first != NULL) {
+				rp = mandoc_calloc(1, sizeof(*rp));
+				if (tbl->last_row)
+					tbl->last_row->next = rp;
+				else
+					tbl->first_row = rp;
+				tbl->last_row = rp;
+			} else
+				rp = tbl->last_row;
+		}
+		cell(tbl, rp, ln, p, &pos);
+	}
+}
+
+static struct tbl_cell *
+cell_alloc(struct tbl_node *tbl, struct tbl_row *rp, enum tbl_cellt pos)
+{
+	struct tbl_cell	*p, *pp;
+
+	p = mandoc_calloc(1, sizeof(*p));
+	p->spacing = SIZE_MAX;
+	p->pos = pos;
+
+	if ((pp = rp->last) != NULL) {
+		pp->next = p;
+		p->col = pp->col + 1;
+	} else
+		rp->first = p;
+	rp->last = p;
+
+	if (tbl->opts.cols <= p->col)
+		tbl->opts.cols = p->col + 1;
+
+	return p;
+}

Added: vendor/mandoc/dist/tbl_opts.c
===================================================================
--- vendor/mandoc/dist/tbl_opts.c	                        (rev 0)
+++ vendor/mandoc/dist/tbl_opts.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,173 @@
+/*	$Id: tbl_opts.c,v 1.21 2015/09/26 00:54:04 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "libmandoc.h"
+#include "libroff.h"
+
+#define	KEY_DPOINT	0
+#define	KEY_DELIM	1
+#define	KEY_LINESIZE	2
+#define	KEY_TAB		3
+
+struct	tbl_phrase {
+	const char	*name;
+	int		 key;
+};
+
+static	const struct tbl_phrase keys[] = {
+	{"decimalpoint", 0},
+	{"delim",	 0},
+	{"linesize",	 0},
+	{"tab",		 0},
+	{"allbox",	 TBL_OPT_ALLBOX | TBL_OPT_BOX},
+	{"box",		 TBL_OPT_BOX},
+	{"frame",	 TBL_OPT_BOX},
+	{"center",	 TBL_OPT_CENTRE},
+	{"centre",	 TBL_OPT_CENTRE},
+	{"doublebox",	 TBL_OPT_DBOX},
+	{"doubleframe",  TBL_OPT_DBOX},
+	{"expand",	 TBL_OPT_EXPAND},
+	{"nokeep",	 TBL_OPT_NOKEEP},
+	{"nospaces",	 TBL_OPT_NOSPACE},
+	{"nowarn",	 TBL_OPT_NOWARN},
+};
+
+#define KEY_MAXKEYS ((int)(sizeof(keys)/sizeof(keys[0])))
+
+static	void	 arg(struct tbl_node *, int, const char *, int *, int);
+
+
+static void
+arg(struct tbl_node *tbl, int ln, const char *p, int *pos, int key)
+{
+	int		 len, want;
+
+	while (p[*pos] == ' ' || p[*pos] == '\t')
+		(*pos)++;
+
+	/* Arguments are enclosed in parentheses. */
+
+	len = 0;
+	if (p[*pos] == '(') {
+		(*pos)++;
+		while (p[*pos + len] != ')')
+			len++;
+	}
+
+	switch (key) {
+	case KEY_DELIM:
+		mandoc_vmsg(MANDOCERR_TBLOPT_EQN, tbl->parse,
+		    ln, *pos, "%.*s", len, p + *pos);
+		want = 2;
+		break;
+	case KEY_TAB:
+		want = 1;
+		if (len == want)
+			tbl->opts.tab = p[*pos];
+		break;
+	case KEY_LINESIZE:
+		want = 0;
+		break;
+	case KEY_DPOINT:
+		want = 1;
+		if (len == want)
+			tbl->opts.decimal = p[*pos];
+		break;
+	default:
+		abort();
+	}
+
+	if (len == 0)
+		mandoc_msg(MANDOCERR_TBLOPT_NOARG,
+		    tbl->parse, ln, *pos, keys[key].name);
+	else if (want && len != want)
+		mandoc_vmsg(MANDOCERR_TBLOPT_ARGSZ,
+		    tbl->parse, ln, *pos, "%s want %d have %d",
+		    keys[key].name, want, len);
+
+	*pos += len;
+	if (p[*pos] == ')')
+		(*pos)++;
+}
+
+/*
+ * Parse one line of options up to the semicolon.
+ * Each option can be preceded by blanks and/or commas,
+ * and some options are followed by arguments.
+ */
+void
+tbl_option(struct tbl_node *tbl, int ln, const char *p, int *offs)
+{
+	int		 i, pos, len;
+
+	pos = *offs;
+	for (;;) {
+		while (p[pos] == ' ' || p[pos] == '\t' || p[pos] == ',')
+			pos++;
+
+		if (p[pos] == ';') {
+			*offs = pos + 1;
+			return;
+		}
+
+		/* Parse one option name. */
+
+		len = 0;
+		while (isalpha((unsigned char)p[pos + len]))
+			len++;
+
+		if (len == 0) {
+			mandoc_vmsg(MANDOCERR_TBLOPT_ALPHA,
+			    tbl->parse, ln, pos, "%c", p[pos]);
+			pos++;
+			continue;
+		}
+
+		/* Look up the option name. */
+
+		i = 0;
+		while (i < KEY_MAXKEYS &&
+		    (strncasecmp(p + pos, keys[i].name, len) ||
+		     keys[i].name[len] != '\0'))
+			i++;
+
+		if (i == KEY_MAXKEYS) {
+			mandoc_vmsg(MANDOCERR_TBLOPT_BAD, tbl->parse,
+			    ln, pos, "%.*s", len, p + pos);
+			pos += len;
+			continue;
+		}
+
+		/* Handle the option. */
+
+		pos += len;
+		if (keys[i].key)
+			tbl->opts.opts |= keys[i].key;
+		else
+			arg(tbl, ln, p, &pos, i);
+	}
+}

Added: vendor/mandoc/dist/tbl_term.c
===================================================================
--- vendor/mandoc/dist/tbl_term.c	                        (rev 0)
+++ vendor/mandoc/dist/tbl_term.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,676 @@
+/*	$Id: tbl_term.c,v 1.57 2017/07/31 16:14:10 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011,2012,2014,2015,2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "out.h"
+#include "term.h"
+
+#define	IS_HORIZ(cp)	((cp)->pos == TBL_CELL_HORIZ || \
+			 (cp)->pos == TBL_CELL_DHORIZ)
+
+static	size_t	term_tbl_len(size_t, void *);
+static	size_t	term_tbl_strlen(const char *, void *);
+static	size_t	term_tbl_sulen(const struct roffsu *, void *);
+static	void	tbl_char(struct termp *, char, size_t);
+static	void	tbl_data(struct termp *, const struct tbl_opts *,
+			const struct tbl_cell *,
+			const struct tbl_dat *,
+			const struct roffcol *);
+static	void	tbl_literal(struct termp *, const struct tbl_dat *,
+			const struct roffcol *);
+static	void	tbl_number(struct termp *, const struct tbl_opts *,
+			const struct tbl_dat *,
+			const struct roffcol *);
+static	void	tbl_hrule(struct termp *, const struct tbl_span *, int);
+static	void	tbl_word(struct termp *, const struct tbl_dat *);
+
+
+static size_t
+term_tbl_sulen(const struct roffsu *su, void *arg)
+{
+	int	 i;
+
+	i = term_hen((const struct termp *)arg, su);
+	return i > 0 ? i : 0;
+}
+
+static size_t
+term_tbl_strlen(const char *p, void *arg)
+{
+	return term_strlen((const struct termp *)arg, p);
+}
+
+static size_t
+term_tbl_len(size_t sz, void *arg)
+{
+	return term_len((const struct termp *)arg, sz);
+}
+
+void
+term_tbl(struct termp *tp, const struct tbl_span *sp)
+{
+	const struct tbl_cell	*cp, *cpn, *cpp;
+	const struct tbl_dat	*dp;
+	static size_t		 offset;
+	size_t			 coloff, tsz;
+	int			 ic, horiz, spans, vert, more;
+	char			 fc;
+
+	/* Inhibit printing of spaces: we do padding ourselves. */
+
+	tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE;
+
+	/*
+	 * The first time we're invoked for a given table block,
+	 * calculate the table widths and decimal positions.
+	 */
+
+	if (tp->tbl.cols == NULL) {
+		tp->tbl.len = term_tbl_len;
+		tp->tbl.slen = term_tbl_strlen;
+		tp->tbl.sulen = term_tbl_sulen;
+		tp->tbl.arg = tp;
+
+		tblcalc(&tp->tbl, sp, tp->tcol->offset, tp->tcol->rmargin);
+
+		/* Tables leak .ta settings to subsequent text. */
+
+		term_tab_set(tp, NULL);
+		coloff = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
+		    sp->opts->lvert;
+		for (ic = 0; ic < sp->opts->cols; ic++) {
+			coloff += tp->tbl.cols[ic].width;
+			term_tab_iset(coloff);
+			coloff += tp->tbl.cols[ic].spacing;
+		}
+
+		/* Center the table as a whole. */
+
+		offset = tp->tcol->offset;
+		if (sp->opts->opts & TBL_OPT_CENTRE) {
+			tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
+			    ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
+			for (ic = 0; ic + 1 < sp->opts->cols; ic++)
+				tsz += tp->tbl.cols[ic].width +
+				    tp->tbl.cols[ic].spacing;
+			if (sp->opts->cols)
+				tsz += tp->tbl.cols[sp->opts->cols - 1].width;
+			if (offset + tsz > tp->tcol->rmargin)
+				tsz -= 1;
+			tp->tcol->offset = offset + tp->tcol->rmargin > tsz ?
+			    (offset + tp->tcol->rmargin - tsz) / 2 : 0;
+		}
+
+		/* Horizontal frame at the start of boxed tables. */
+
+		if (sp->opts->opts & TBL_OPT_DBOX)
+			tbl_hrule(tp, sp, 3);
+		if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
+			tbl_hrule(tp, sp, 2);
+	}
+
+	/* Set up the columns. */
+
+	tp->flags |= TERMP_MULTICOL;
+	horiz = 0;
+	switch (sp->pos) {
+	case TBL_SPAN_HORIZ:
+	case TBL_SPAN_DHORIZ:
+		horiz = 1;
+		term_setcol(tp, 1);
+		break;
+	case TBL_SPAN_DATA:
+		term_setcol(tp, sp->opts->cols + 2);
+		coloff = tp->tcol->offset;
+
+		/* Set up a column for a left vertical frame. */
+
+		if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ||
+		    sp->opts->lvert)
+			coloff++;
+		tp->tcol->rmargin = coloff;
+
+		/* Set up the data columns. */
+
+		dp = sp->first;
+		spans = 0;
+		for (ic = 0; ic < sp->opts->cols; ic++) {
+			if (spans == 0) {
+				tp->tcol++;
+				tp->tcol->offset = coloff;
+			}
+			coloff += tp->tbl.cols[ic].width;
+			tp->tcol->rmargin = coloff;
+			if (ic + 1 < sp->opts->cols)
+				coloff += tp->tbl.cols[ic].spacing;
+			if (spans) {
+				spans--;
+				continue;
+			}
+			if (dp == NULL)
+				continue;
+			spans = dp->spans;
+			if (ic || sp->layout->first->pos != TBL_CELL_SPAN)
+				dp = dp->next;
+		}
+
+		/* Set up a column for a right vertical frame. */
+
+		tp->tcol++;
+		tp->tcol->offset = coloff + 1;
+		tp->tcol->rmargin = tp->maxrmargin;
+
+		/* Spans may have reduced the number of columns. */
+
+		tp->lasttcol = tp->tcol - tp->tcols;
+
+		/* Fill the buffers for all data columns. */
+
+		tp->tcol = tp->tcols;
+		cp = cpn = sp->layout->first;
+		dp = sp->first;
+		spans = 0;
+		for (ic = 0; ic < sp->opts->cols; ic++) {
+			if (cpn != NULL) {
+				cp = cpn;
+				cpn = cpn->next;
+			}
+			if (spans) {
+				spans--;
+				continue;
+			}
+			tp->tcol++;
+			tp->col = 0;
+			tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic);
+			if (dp == NULL)
+				continue;
+			spans = dp->spans;
+			if (cp->pos != TBL_CELL_SPAN)
+				dp = dp->next;
+		}
+		break;
+	}
+
+	do {
+		/* Print the vertical frame at the start of each row. */
+
+		tp->tcol = tp->tcols;
+		fc = '\0';
+		if (sp->layout->vert ||
+		    (sp->next != NULL && sp->next->layout->vert &&
+		     sp->next->pos == TBL_SPAN_DATA) ||
+		    (sp->prev != NULL && sp->prev->layout->vert &&
+		     (horiz || (IS_HORIZ(sp->layout->first) &&
+		       !IS_HORIZ(sp->prev->layout->first)))) ||
+		    sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
+			fc = horiz || IS_HORIZ(sp->layout->first) ? '+' : '|';
+		else if (horiz && sp->opts->lvert)
+			fc = '-';
+		if (fc != '\0') {
+			(*tp->advance)(tp, tp->tcols->offset);
+			(*tp->letter)(tp, fc);
+			tp->viscol = tp->tcol->offset + 1;
+		}
+
+		/* Print the data cells. */
+
+		more = 0;
+		if (horiz) {
+			tbl_hrule(tp, sp, 0);
+			term_flushln(tp);
+		} else {
+			cp = sp->layout->first;
+			cpn = sp->next == NULL ? NULL :
+			    sp->next->layout->first;
+			cpp = sp->prev == NULL ? NULL :
+			    sp->prev->layout->first;
+			dp = sp->first;
+			spans = 0;
+			for (ic = 0; ic < sp->opts->cols; ic++) {
+
+				/*
+				 * Figure out whether to print a
+				 * vertical line after this cell
+				 * and advance to next layout cell.
+				 */
+
+				if (cp != NULL) {
+					vert = cp->vert;
+					switch (cp->pos) {
+					case TBL_CELL_HORIZ:
+						fc = '-';
+						break;
+					case TBL_CELL_DHORIZ:
+						fc = '=';
+						break;
+					default:
+						fc = ' ';
+						break;
+					}
+				} else {
+					vert = 0;
+					fc = ' ';
+				}
+				if (cpp != NULL) {
+					if (vert == 0 &&
+					    cp != NULL &&
+					    ((IS_HORIZ(cp) &&
+					      !IS_HORIZ(cpp)) ||
+					     (cp->next != NULL &&
+					      cpp->next != NULL &&
+					      IS_HORIZ(cp->next) &&
+					      !IS_HORIZ(cpp->next))))
+						vert = cpp->vert;
+					cpp = cpp->next;
+				}
+				if (vert == 0 &&
+				    sp->opts->opts & TBL_OPT_ALLBOX)
+					vert = 1;
+				if (cpn != NULL) {
+					if (vert == 0)
+						vert = cpn->vert;
+					cpn = cpn->next;
+				}
+				if (cp != NULL)
+					cp = cp->next;
+
+				/*
+				 * Skip later cells in a span,
+				 * figure out whether to start a span,
+				 * and advance to next data cell.
+				 */
+
+				if (spans) {
+					spans--;
+					continue;
+				}
+				if (dp != NULL) {
+					spans = dp->spans;
+					if (ic || sp->layout->first->pos
+					    != TBL_CELL_SPAN)
+						dp = dp->next;
+				}
+
+				/*
+				 * Print one line of text in the cell
+				 * and remember whether there is more.
+				 */
+
+				tp->tcol++;
+				if (tp->tcol->col < tp->tcol->lastcol)
+					term_flushln(tp);
+				if (tp->tcol->col < tp->tcol->lastcol)
+					more = 1;
+
+				/*
+				 * Vertical frames between data cells,
+				 * but not after the last column.
+				 */
+
+				if (fc == ' ' && ((vert == 0 &&
+				     (cp == NULL || !IS_HORIZ(cp))) ||
+				    tp->tcol + 1 == tp->tcols + tp->lasttcol))
+					continue;
+
+				if (tp->viscol < tp->tcol->rmargin) {
+					(*tp->advance)(tp, tp->tcol->rmargin
+					   - tp->viscol);
+					tp->viscol = tp->tcol->rmargin;
+				}
+				while (tp->viscol < tp->tcol->rmargin +
+				    tp->tbl.cols[ic].spacing / 2) {
+					(*tp->letter)(tp, fc);
+					tp->viscol++;
+				}
+
+				if (tp->tcol + 1 == tp->tcols + tp->lasttcol)
+					continue;
+
+				if (fc == ' ' && cp != NULL) {
+					switch (cp->pos) {
+					case TBL_CELL_HORIZ:
+						fc = '-';
+						break;
+					case TBL_CELL_DHORIZ:
+						fc = '=';
+						break;
+					default:
+						break;
+					}
+				}
+				if (tp->tbl.cols[ic].spacing) {
+					(*tp->letter)(tp, fc == ' ' ? '|' :
+					    vert ? '+' : fc);
+					tp->viscol++;
+				}
+
+				if (fc != ' ') {
+					if (cp != NULL &&
+					    cp->pos == TBL_CELL_HORIZ)
+						fc = '-';
+					else if (cp != NULL &&
+					    cp->pos == TBL_CELL_DHORIZ)
+						fc = '=';
+					else
+						fc = ' ';
+				}
+				if (tp->tbl.cols[ic].spacing > 2 &&
+				    (vert > 1 || fc != ' ')) {
+					(*tp->letter)(tp, fc == ' ' ? '|' :
+					    vert > 1 ? '+' : fc);
+					tp->viscol++;
+				}
+			}
+		}
+
+		/* Print the vertical frame at the end of each row. */
+
+		fc = '\0';
+		if ((sp->layout->last->vert &&
+		     sp->layout->last->col + 1 == sp->opts->cols) ||
+		    (sp->next != NULL &&
+		     sp->next->layout->last->vert &&
+		     sp->next->layout->last->col + 1 == sp->opts->cols) ||
+		    (sp->prev != NULL &&
+		     sp->prev->layout->last->vert &&
+		     sp->prev->layout->last->col + 1 == sp->opts->cols &&
+		     (horiz || (IS_HORIZ(sp->layout->last) &&
+		      !IS_HORIZ(sp->prev->layout->last)))) ||
+		    (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
+			fc = horiz || IS_HORIZ(sp->layout->last) ? '+' : '|';
+		else if (horiz && sp->opts->rvert)
+			fc = '-';
+		if (fc != '\0') {
+			if (horiz == 0 && (IS_HORIZ(sp->layout->last) == 0 ||
+			    sp->layout->last->col + 1 < sp->opts->cols)) {
+				tp->tcol++;
+				(*tp->advance)(tp,
+				    tp->tcol->offset > tp->viscol ?
+				    tp->tcol->offset - tp->viscol : 1);
+			}
+			(*tp->letter)(tp, fc);
+		}
+		(*tp->endline)(tp);
+		tp->viscol = 0;
+	} while (more);
+
+	/*
+	 * Clean up after this row.  If it is the last line
+	 * of the table, print the box line and clean up
+	 * column data; otherwise, print the allbox line.
+	 */
+
+	term_setcol(tp, 1);
+	tp->flags &= ~TERMP_MULTICOL;
+	tp->tcol->rmargin = tp->maxrmargin;
+	if (sp->next == NULL) {
+		if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
+			tbl_hrule(tp, sp, 2);
+			tp->skipvsp = 1;
+		}
+		if (sp->opts->opts & TBL_OPT_DBOX) {
+			tbl_hrule(tp, sp, 3);
+			tp->skipvsp = 2;
+		}
+		assert(tp->tbl.cols);
+		free(tp->tbl.cols);
+		tp->tbl.cols = NULL;
+		tp->tcol->offset = offset;
+	} else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX &&
+	    (sp->next == NULL || sp->next->pos == TBL_SPAN_DATA ||
+	     sp->next->next != NULL))
+		tbl_hrule(tp, sp, 1);
+
+	tp->flags &= ~TERMP_NONOSPACE;
+}
+
+/*
+ * Kinds of horizontal rulers:
+ * 0: inside the table (single or double line with crossings)
+ * 1: inside the table (single or double line with crossings and ends)
+ * 2: inner frame (single line with crossings and ends)
+ * 3: outer frame (single line without crossings with ends)
+ */
+static void
+tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
+{
+	const struct tbl_cell *cp, *cpn, *cpp;
+	const struct roffcol *col;
+	int	 vert;
+	char	 line, cross;
+
+	line = (kind < 2 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
+	cross = (kind < 3) ? '+' : '-';
+
+	if (kind)
+		term_word(tp, "+");
+	cp = sp->layout->first;
+	cpp = kind || sp->prev == NULL ? NULL : sp->prev->layout->first;
+	if (cpp == cp)
+		cpp = NULL;
+	cpn = kind > 1 || sp->next == NULL ? NULL : sp->next->layout->first;
+	if (cpn == cp)
+		cpn = NULL;
+	for (;;) {
+		col = tp->tbl.cols + cp->col;
+		tbl_char(tp, line, col->width + col->spacing / 2);
+		vert = cp->vert;
+		if ((cp = cp->next) == NULL)
+			 break;
+		if (cpp != NULL) {
+			if (vert < cpp->vert)
+				vert = cpp->vert;
+			cpp = cpp->next;
+		}
+		if (cpn != NULL) {
+			if (vert < cpn->vert)
+				vert = cpn->vert;
+			cpn = cpn->next;
+		}
+		if (sp->opts->opts & TBL_OPT_ALLBOX && !vert)
+			vert = 1;
+		if (col->spacing)
+			tbl_char(tp, vert ? cross : line, 1);
+		if (col->spacing > 2)
+			tbl_char(tp, vert > 1 ? cross : line, 1);
+		if (col->spacing > 4)
+			tbl_char(tp, line, (col->spacing - 3) / 2);
+	}
+	if (kind) {
+		term_word(tp, "+");
+		term_flushln(tp);
+	}
+}
+
+static void
+tbl_data(struct termp *tp, const struct tbl_opts *opts,
+    const struct tbl_cell *cp, const struct tbl_dat *dp,
+    const struct roffcol *col)
+{
+	switch (cp->pos) {
+	case TBL_CELL_HORIZ:
+		tbl_char(tp, '-', col->width);
+		return;
+	case TBL_CELL_DHORIZ:
+		tbl_char(tp, '=', col->width);
+		return;
+	default:
+		break;
+	}
+
+	if (dp == NULL)
+		return;
+
+	switch (dp->pos) {
+	case TBL_DATA_NONE:
+		return;
+	case TBL_DATA_HORIZ:
+	case TBL_DATA_NHORIZ:
+		tbl_char(tp, '-', col->width);
+		return;
+	case TBL_DATA_NDHORIZ:
+	case TBL_DATA_DHORIZ:
+		tbl_char(tp, '=', col->width);
+		return;
+	default:
+		break;
+	}
+
+	switch (cp->pos) {
+	case TBL_CELL_LONG:
+	case TBL_CELL_CENTRE:
+	case TBL_CELL_LEFT:
+	case TBL_CELL_RIGHT:
+		tbl_literal(tp, dp, col);
+		break;
+	case TBL_CELL_NUMBER:
+		tbl_number(tp, opts, dp, col);
+		break;
+	case TBL_CELL_DOWN:
+	case TBL_CELL_SPAN:
+		break;
+	default:
+		abort();
+	}
+}
+
+static void
+tbl_char(struct termp *tp, char c, size_t len)
+{
+	size_t		i, sz;
+	char		cp[2];
+
+	cp[0] = c;
+	cp[1] = '\0';
+
+	sz = term_strlen(tp, cp);
+
+	for (i = 0; i < len; i += sz)
+		term_word(tp, cp);
+}
+
+static void
+tbl_literal(struct termp *tp, const struct tbl_dat *dp,
+		const struct roffcol *col)
+{
+	size_t		 len, padl, padr, width;
+	int		 ic, spans;
+
+	assert(dp->string);
+	len = term_strlen(tp, dp->string);
+	width = col->width;
+	ic = dp->layout->col;
+	spans = dp->spans;
+	while (spans--)
+		width += tp->tbl.cols[++ic].width + 3;
+
+	padr = width > len ? width - len : 0;
+	padl = 0;
+
+	switch (dp->layout->pos) {
+	case TBL_CELL_LONG:
+		padl = term_len(tp, 1);
+		padr = padr > padl ? padr - padl : 0;
+		break;
+	case TBL_CELL_CENTRE:
+		if (2 > padr)
+			break;
+		padl = padr / 2;
+		padr -= padl;
+		break;
+	case TBL_CELL_RIGHT:
+		padl = padr;
+		padr = 0;
+		break;
+	default:
+		break;
+	}
+
+	tbl_char(tp, ASCII_NBRSP, padl);
+	tbl_word(tp, dp);
+	tbl_char(tp, ASCII_NBRSP, padr);
+}
+
+static void
+tbl_number(struct termp *tp, const struct tbl_opts *opts,
+		const struct tbl_dat *dp,
+		const struct roffcol *col)
+{
+	char		*cp;
+	char		 buf[2];
+	size_t		 sz, psz, ssz, d, padl;
+	int		 i;
+
+	/*
+	 * See calc_data_number().  Left-pad by taking the offset of our
+	 * and the maximum decimal; right-pad by the remaining amount.
+	 */
+
+	assert(dp->string);
+
+	sz = term_strlen(tp, dp->string);
+
+	buf[0] = opts->decimal;
+	buf[1] = '\0';
+
+	psz = term_strlen(tp, buf);
+
+	if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
+		for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
+			buf[0] = dp->string[i];
+			ssz += term_strlen(tp, buf);
+		}
+		d = ssz + psz;
+	} else
+		d = sz + psz;
+
+	if (col->decimal > d && col->width > sz) {
+		padl = col->decimal - d;
+		if (padl + sz > col->width)
+			padl = col->width - sz;
+		tbl_char(tp, ASCII_NBRSP, padl);
+	} else
+		padl = 0;
+	tbl_word(tp, dp);
+	if (col->width > sz + padl)
+		tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
+}
+
+static void
+tbl_word(struct termp *tp, const struct tbl_dat *dp)
+{
+	int		 prev_font;
+
+	prev_font = tp->fonti;
+	if (dp->layout->flags & TBL_CELL_BOLD)
+		term_fontpush(tp, TERMFONT_BOLD);
+	else if (dp->layout->flags & TBL_CELL_ITALIC)
+		term_fontpush(tp, TERMFONT_UNDER);
+
+	term_word(tp, dp->string);
+
+	term_fontpopq(tp, prev_font);
+}

Added: vendor/mandoc/dist/term.c
===================================================================
--- vendor/mandoc/dist/term.c	                        (rev 0)
+++ vendor/mandoc/dist/term.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,995 @@
+/*	$Id: term.c,v 1.274 2017/07/28 14:25:48 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2010-2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "out.h"
+#include "term.h"
+#include "main.h"
+
+static	size_t		 cond_width(const struct termp *, int, int *);
+static	void		 adjbuf(struct termp_col *, size_t);
+static	void		 bufferc(struct termp *, char);
+static	void		 encode(struct termp *, const char *, size_t);
+static	void		 encode1(struct termp *, int);
+static	void		 endline(struct termp *);
+
+
+void
+term_setcol(struct termp *p, size_t maxtcol)
+{
+	if (maxtcol > p->maxtcol) {
+		p->tcols = mandoc_recallocarray(p->tcols,
+		    p->maxtcol, maxtcol, sizeof(*p->tcols));
+		p->maxtcol = maxtcol;
+	}
+	p->lasttcol = maxtcol - 1;
+	p->tcol = p->tcols;
+}
+
+void
+term_free(struct termp *p)
+{
+	for (p->tcol = p->tcols; p->tcol < p->tcols + p->maxtcol; p->tcol++)
+		free(p->tcol->buf);
+	free(p->tcols);
+	free(p->fontq);
+	free(p);
+}
+
+void
+term_begin(struct termp *p, term_margin head,
+		term_margin foot, const struct roff_meta *arg)
+{
+
+	p->headf = head;
+	p->footf = foot;
+	p->argf = arg;
+	(*p->begin)(p);
+}
+
+void
+term_end(struct termp *p)
+{
+
+	(*p->end)(p);
+}
+
+/*
+ * Flush a chunk of text.  By default, break the output line each time
+ * the right margin is reached, and continue output on the next line
+ * at the same offset as the chunk itself.  By default, also break the
+ * output line at the end of the chunk.
+ * The following flags may be specified:
+ *
+ *  - TERMP_NOBREAK: Do not break the output line at the right margin,
+ *    but only at the max right margin.  Also, do not break the output
+ *    line at the end of the chunk, such that the next call can pad to
+ *    the next column.  However, if less than p->trailspace blanks,
+ *    which can be 0, 1, or 2, remain to the right margin, the line
+ *    will be broken.
+ *  - TERMP_BRTRSP: Consider trailing whitespace significant
+ *    when deciding whether the chunk fits or not.
+ *  - TERMP_BRIND: If the chunk does not fit and the output line has
+ *    to be broken, start the next line at the right margin instead
+ *    of at the offset.  Used together with TERMP_NOBREAK for the tags
+ *    in various kinds of tagged lists.
+ *  - TERMP_HANG: Do not break the output line at the right margin,
+ *    append the next chunk after it even if this one is too long.
+ *    To be used together with TERMP_NOBREAK.
+ *  - TERMP_NOPAD: Start writing at the current position,
+ *    do not pad with blank characters up to the offset.
+ */
+void
+term_flushln(struct termp *p)
+{
+	size_t		 vis;   /* current visual position on output */
+	size_t		 vbl;   /* number of blanks to prepend to output */
+	size_t		 vend;	/* end of word visual position on output */
+	size_t		 bp;    /* visual right border position */
+	size_t		 dv;    /* temporary for visual pos calculations */
+	size_t		 j;     /* temporary loop index for p->tcol->buf */
+	size_t		 jhy;	/* last hyph before overflow w/r/t j */
+	size_t		 maxvis; /* output position of visible boundary */
+	int		 ntab;	/* number of tabs to prepend */
+	int		 breakline; /* after this word */
+
+	vbl = (p->flags & TERMP_NOPAD) || p->tcol->offset < p->viscol ?
+	    0 : p->tcol->offset - p->viscol;
+	if (p->minbl && vbl < p->minbl)
+		vbl = p->minbl;
+	maxvis = p->tcol->rmargin > p->viscol + vbl ?
+	    p->tcol->rmargin - p->viscol - vbl : 0;
+	bp = !(p->flags & TERMP_NOBREAK) ? maxvis :
+	    p->maxrmargin > p->viscol + vbl ?
+	    p->maxrmargin - p->viscol - vbl : 0;
+	vis = vend = 0;
+
+	if ((p->flags & TERMP_MULTICOL) == 0)
+		p->tcol->col = 0;
+	while (p->tcol->col < p->tcol->lastcol) {
+
+		/*
+		 * Handle literal tab characters: collapse all
+		 * subsequent tabs into a single huge set of spaces.
+		 */
+
+		ntab = 0;
+		while (p->tcol->col < p->tcol->lastcol &&
+		    p->tcol->buf[p->tcol->col] == '\t') {
+			vend = term_tab_next(vis);
+			vbl += vend - vis;
+			vis = vend;
+			ntab++;
+			p->tcol->col++;
+		}
+
+		/*
+		 * Count up visible word characters.  Control sequences
+		 * (starting with the CSI) aren't counted.  A space
+		 * generates a non-printing word, which is valid (the
+		 * space is printed according to regular spacing rules).
+		 */
+
+		jhy = 0;
+		breakline = 0;
+		for (j = p->tcol->col; j < p->tcol->lastcol; j++) {
+			if (p->tcol->buf[j] == '\n') {
+				if ((p->flags & TERMP_BRIND) == 0)
+					breakline = 1;
+				continue;
+			}
+			if (p->tcol->buf[j] == ' ' || p->tcol->buf[j] == '\t')
+				break;
+
+			/* Back over the last printed character. */
+			if (p->tcol->buf[j] == '\b') {
+				assert(j);
+				vend -= (*p->width)(p, p->tcol->buf[j - 1]);
+				continue;
+			}
+
+			/* Regular word. */
+			/* Break at the hyphen point if we overrun. */
+			if (vend > vis && vend < bp &&
+			    (p->tcol->buf[j] == ASCII_HYPH||
+			     p->tcol->buf[j] == ASCII_BREAK))
+				jhy = j;
+
+			/*
+			 * Hyphenation now decided, put back a real
+			 * hyphen such that we get the correct width.
+			 */
+			if (p->tcol->buf[j] == ASCII_HYPH)
+				p->tcol->buf[j] = '-';
+
+			vend += (*p->width)(p, p->tcol->buf[j]);
+		}
+
+		/*
+		 * Find out whether we would exceed the right margin.
+		 * If so, break to the next line.
+		 */
+
+		if (vend > bp && jhy == 0 && vis > 0 &&
+		    (p->flags & TERMP_BRNEVER) == 0) {
+			if (p->flags & TERMP_MULTICOL)
+				return;
+
+			endline(p);
+			vend -= vis;
+
+			/* Use pending tabs on the new line. */
+
+			vbl = 0;
+			while (ntab--)
+				vbl = term_tab_next(vbl);
+
+			/* Re-establish indentation. */
+
+			if (p->flags & TERMP_BRIND)
+				vbl += p->tcol->rmargin;
+			else
+				vbl += p->tcol->offset;
+			maxvis = p->tcol->rmargin > vbl ?
+			    p->tcol->rmargin - vbl : 0;
+			bp = !(p->flags & TERMP_NOBREAK) ? maxvis :
+			    p->maxrmargin > vbl ?  p->maxrmargin - vbl : 0;
+		}
+
+		/*
+		 * Write out the rest of the word.
+		 */
+
+		for ( ; p->tcol->col < p->tcol->lastcol; p->tcol->col++) {
+			if (vend > bp && jhy > 0 && p->tcol->col > jhy)
+				break;
+			if (p->tcol->buf[p->tcol->col] == '\n')
+				continue;
+			if (p->tcol->buf[p->tcol->col] == '\t')
+				break;
+			if (p->tcol->buf[p->tcol->col] == ' ') {
+				j = p->tcol->col;
+				while (p->tcol->col < p->tcol->lastcol &&
+				    p->tcol->buf[p->tcol->col] == ' ')
+					p->tcol->col++;
+				dv = (p->tcol->col - j) * (*p->width)(p, ' ');
+				vbl += dv;
+				vend += dv;
+				break;
+			}
+			if (p->tcol->buf[p->tcol->col] == ASCII_NBRSP) {
+				vbl += (*p->width)(p, ' ');
+				continue;
+			}
+			if (p->tcol->buf[p->tcol->col] == ASCII_BREAK)
+				continue;
+
+			/*
+			 * Now we definitely know there will be
+			 * printable characters to output,
+			 * so write preceding white space now.
+			 */
+			if (vbl) {
+				(*p->advance)(p, vbl);
+				p->viscol += vbl;
+				vbl = 0;
+			}
+
+			(*p->letter)(p, p->tcol->buf[p->tcol->col]);
+			if (p->tcol->buf[p->tcol->col] == '\b')
+				p->viscol -= (*p->width)(p,
+				    p->tcol->buf[p->tcol->col - 1]);
+			else
+				p->viscol += (*p->width)(p,
+				    p->tcol->buf[p->tcol->col]);
+		}
+		vis = vend;
+
+		if (breakline == 0)
+			continue;
+
+		/* Explicitly requested output line break. */
+
+		if (p->flags & TERMP_MULTICOL)
+			return;
+
+		endline(p);
+		breakline = 0;
+		vis = vend = 0;
+
+		/* Re-establish indentation. */
+
+		vbl = p->tcol->offset;
+		maxvis = p->tcol->rmargin > vbl ?
+		    p->tcol->rmargin - vbl : 0;
+		bp = !(p->flags & TERMP_NOBREAK) ? maxvis :
+		    p->maxrmargin > vbl ?  p->maxrmargin - vbl : 0;
+	}
+
+	/*
+	 * If there was trailing white space, it was not printed;
+	 * so reset the cursor position accordingly.
+	 */
+
+	if (vis > vbl)
+		vis -= vbl;
+	else
+		vis = 0;
+
+	p->col = p->tcol->col = p->tcol->lastcol = 0;
+	p->minbl = p->trailspace;
+	p->flags &= ~(TERMP_BACKAFTER | TERMP_BACKBEFORE | TERMP_NOPAD);
+
+	if (p->flags & TERMP_MULTICOL)
+		return;
+
+	/* Trailing whitespace is significant in some columns. */
+
+	if (vis && vbl && (TERMP_BRTRSP & p->flags))
+		vis += vbl;
+
+	/* If the column was overrun, break the line. */
+	if ((p->flags & TERMP_NOBREAK) == 0 ||
+	    ((p->flags & TERMP_HANG) == 0 &&
+	     vis + p->trailspace * (*p->width)(p, ' ') > maxvis))
+		endline(p);
+}
+
+static void
+endline(struct termp *p)
+{
+	if ((p->flags & (TERMP_NEWMC | TERMP_ENDMC)) == TERMP_ENDMC) {
+		p->mc = NULL;
+		p->flags &= ~TERMP_ENDMC;
+	}
+	if (p->mc != NULL) {
+		if (p->viscol && p->maxrmargin >= p->viscol)
+			(*p->advance)(p, p->maxrmargin - p->viscol + 1);
+		p->flags |= TERMP_NOBUF | TERMP_NOSPACE;
+		term_word(p, p->mc);
+		p->flags &= ~(TERMP_NOBUF | TERMP_NEWMC);
+	}
+	p->viscol = 0;
+	p->minbl = 0;
+	(*p->endline)(p);
+}
+
+/*
+ * A newline only breaks an existing line; it won't assert vertical
+ * space.  All data in the output buffer is flushed prior to the newline
+ * assertion.
+ */
+void
+term_newln(struct termp *p)
+{
+
+	p->flags |= TERMP_NOSPACE;
+	if (p->tcol->lastcol || p->viscol)
+		term_flushln(p);
+}
+
+/*
+ * Asserts a vertical space (a full, empty line-break between lines).
+ * Note that if used twice, this will cause two blank spaces and so on.
+ * All data in the output buffer is flushed prior to the newline
+ * assertion.
+ */
+void
+term_vspace(struct termp *p)
+{
+
+	term_newln(p);
+	p->viscol = 0;
+	p->minbl = 0;
+	if (0 < p->skipvsp)
+		p->skipvsp--;
+	else
+		(*p->endline)(p);
+}
+
+/* Swap current and previous font; for \fP and .ft P */
+void
+term_fontlast(struct termp *p)
+{
+	enum termfont	 f;
+
+	f = p->fontl;
+	p->fontl = p->fontq[p->fonti];
+	p->fontq[p->fonti] = f;
+}
+
+/* Set font, save current, discard previous; for \f, .ft, .B etc. */
+void
+term_fontrepl(struct termp *p, enum termfont f)
+{
+
+	p->fontl = p->fontq[p->fonti];
+	p->fontq[p->fonti] = f;
+}
+
+/* Set font, save previous. */
+void
+term_fontpush(struct termp *p, enum termfont f)
+{
+
+	p->fontl = p->fontq[p->fonti];
+	if (++p->fonti == p->fontsz) {
+		p->fontsz += 8;
+		p->fontq = mandoc_reallocarray(p->fontq,
+		    p->fontsz, sizeof(*p->fontq));
+	}
+	p->fontq[p->fonti] = f;
+}
+
+/* Flush to make the saved pointer current again. */
+void
+term_fontpopq(struct termp *p, int i)
+{
+
+	assert(i >= 0);
+	if (p->fonti > i)
+		p->fonti = i;
+}
+
+/* Pop one font off the stack. */
+void
+term_fontpop(struct termp *p)
+{
+
+	assert(p->fonti);
+	p->fonti--;
+}
+
+/*
+ * Handle pwords, partial words, which may be either a single word or a
+ * phrase that cannot be broken down (such as a literal string).  This
+ * handles word styling.
+ */
+void
+term_word(struct termp *p, const char *word)
+{
+	struct roffsu	 su;
+	const char	 nbrsp[2] = { ASCII_NBRSP, 0 };
+	const char	*seq, *cp;
+	int		 sz, uc;
+	size_t		 csz, lsz, ssz;
+	enum mandoc_esc	 esc;
+
+	if ((p->flags & TERMP_NOBUF) == 0) {
+		if ((p->flags & TERMP_NOSPACE) == 0) {
+			if ((p->flags & TERMP_KEEP) == 0) {
+				bufferc(p, ' ');
+				if (p->flags & TERMP_SENTENCE)
+					bufferc(p, ' ');
+			} else
+				bufferc(p, ASCII_NBRSP);
+		}
+		if (p->flags & TERMP_PREKEEP)
+			p->flags |= TERMP_KEEP;
+		if (p->flags & TERMP_NONOSPACE)
+			p->flags |= TERMP_NOSPACE;
+		else
+			p->flags &= ~TERMP_NOSPACE;
+		p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE);
+		p->skipvsp = 0;
+	}
+
+	while ('\0' != *word) {
+		if ('\\' != *word) {
+			if (TERMP_NBRWORD & p->flags) {
+				if (' ' == *word) {
+					encode(p, nbrsp, 1);
+					word++;
+					continue;
+				}
+				ssz = strcspn(word, "\\ ");
+			} else
+				ssz = strcspn(word, "\\");
+			encode(p, word, ssz);
+			word += (int)ssz;
+			continue;
+		}
+
+		word++;
+		esc = mandoc_escape(&word, &seq, &sz);
+		if (ESCAPE_ERROR == esc)
+			continue;
+
+		switch (esc) {
+		case ESCAPE_UNICODE:
+			uc = mchars_num2uc(seq + 1, sz - 1);
+			break;
+		case ESCAPE_NUMBERED:
+			uc = mchars_num2char(seq, sz);
+			if (uc < 0)
+				continue;
+			break;
+		case ESCAPE_SPECIAL:
+			if (p->enc == TERMENC_ASCII) {
+				cp = mchars_spec2str(seq, sz, &ssz);
+				if (cp != NULL)
+					encode(p, cp, ssz);
+			} else {
+				uc = mchars_spec2cp(seq, sz);
+				if (uc > 0)
+					encode1(p, uc);
+			}
+			continue;
+		case ESCAPE_FONTBOLD:
+			term_fontrepl(p, TERMFONT_BOLD);
+			continue;
+		case ESCAPE_FONTITALIC:
+			term_fontrepl(p, TERMFONT_UNDER);
+			continue;
+		case ESCAPE_FONTBI:
+			term_fontrepl(p, TERMFONT_BI);
+			continue;
+		case ESCAPE_FONT:
+		case ESCAPE_FONTROMAN:
+			term_fontrepl(p, TERMFONT_NONE);
+			continue;
+		case ESCAPE_FONTPREV:
+			term_fontlast(p);
+			continue;
+		case ESCAPE_BREAK:
+			bufferc(p, '\n');
+			continue;
+		case ESCAPE_NOSPACE:
+			if (p->flags & TERMP_BACKAFTER)
+				p->flags &= ~TERMP_BACKAFTER;
+			else if (*word == '\0')
+				p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE);
+			continue;
+		case ESCAPE_HORIZ:
+			if (*seq == '|') {
+				seq++;
+				uc = -p->col;
+			} else
+				uc = 0;
+			if (a2roffsu(seq, &su, SCALE_EM) == NULL)
+				continue;
+			uc += term_hen(p, &su);
+			if (uc > 0)
+				while (uc-- > 0)
+					bufferc(p, ASCII_NBRSP);
+			else if (p->col > (size_t)(-uc))
+				p->col += uc;
+			else {
+				uc += p->col;
+				p->col = 0;
+				if (p->tcol->offset > (size_t)(-uc)) {
+					p->ti += uc;
+					p->tcol->offset += uc;
+				} else {
+					p->ti -= p->tcol->offset;
+					p->tcol->offset = 0;
+				}
+			}
+			continue;
+		case ESCAPE_HLINE:
+			if ((cp = a2roffsu(seq, &su, SCALE_EM)) == NULL)
+				continue;
+			uc = term_hen(p, &su);
+			if (uc <= 0) {
+				if (p->tcol->rmargin <= p->tcol->offset)
+					continue;
+				lsz = p->tcol->rmargin - p->tcol->offset;
+			} else
+				lsz = uc;
+			if (*cp == seq[-1])
+				uc = -1;
+			else if (*cp == '\\') {
+				seq = cp + 1;
+				esc = mandoc_escape(&seq, &cp, &sz);
+				switch (esc) {
+				case ESCAPE_UNICODE:
+					uc = mchars_num2uc(cp + 1, sz - 1);
+					break;
+				case ESCAPE_NUMBERED:
+					uc = mchars_num2char(cp, sz);
+					break;
+				case ESCAPE_SPECIAL:
+					uc = mchars_spec2cp(cp, sz);
+					break;
+				default:
+					uc = -1;
+					break;
+				}
+			} else
+				uc = *cp;
+			if (uc < 0x20 || (uc > 0x7E && uc < 0xA0))
+				uc = '_';
+			if (p->enc == TERMENC_ASCII) {
+				cp = ascii_uc2str(uc);
+				csz = term_strlen(p, cp);
+				ssz = strlen(cp);
+			} else
+				csz = (*p->width)(p, uc);
+			while (lsz >= csz) {
+				if (p->enc == TERMENC_ASCII)
+					encode(p, cp, ssz);
+				else
+					encode1(p, uc);
+				lsz -= csz;
+			}
+			continue;
+		case ESCAPE_SKIPCHAR:
+			p->flags |= TERMP_BACKAFTER;
+			continue;
+		case ESCAPE_OVERSTRIKE:
+			cp = seq + sz;
+			while (seq < cp) {
+				if (*seq == '\\') {
+					mandoc_escape(&seq, NULL, NULL);
+					continue;
+				}
+				encode1(p, *seq++);
+				if (seq < cp) {
+					if (p->flags & TERMP_BACKBEFORE)
+						p->flags |= TERMP_BACKAFTER;
+					else
+						p->flags |= TERMP_BACKBEFORE;
+				}
+			}
+			/* Trim trailing backspace/blank pair. */
+			if (p->tcol->lastcol > 2 &&
+			    (p->tcol->buf[p->tcol->lastcol - 1] == ' ' ||
+			     p->tcol->buf[p->tcol->lastcol - 1] == '\t'))
+				p->tcol->lastcol -= 2;
+			if (p->col > p->tcol->lastcol)
+				p->col = p->tcol->lastcol;
+			continue;
+		default:
+			continue;
+		}
+
+		/*
+		 * Common handling for Unicode and numbered
+		 * character escape sequences.
+		 */
+
+		if (p->enc == TERMENC_ASCII) {
+			cp = ascii_uc2str(uc);
+			encode(p, cp, strlen(cp));
+		} else {
+			if ((uc < 0x20 && uc != 0x09) ||
+			    (uc > 0x7E && uc < 0xA0))
+				uc = 0xFFFD;
+			encode1(p, uc);
+		}
+	}
+	p->flags &= ~TERMP_NBRWORD;
+}
+
+static void
+adjbuf(struct termp_col *c, size_t sz)
+{
+	if (c->maxcols == 0)
+		c->maxcols = 1024;
+	while (c->maxcols <= sz)
+		c->maxcols <<= 2;
+	c->buf = mandoc_reallocarray(c->buf, c->maxcols, sizeof(*c->buf));
+}
+
+static void
+bufferc(struct termp *p, char c)
+{
+	if (p->flags & TERMP_NOBUF) {
+		(*p->letter)(p, c);
+		return;
+	}
+	if (p->col + 1 >= p->tcol->maxcols)
+		adjbuf(p->tcol, p->col + 1);
+	if (p->tcol->lastcol <= p->col || (c != ' ' && c != ASCII_NBRSP))
+		p->tcol->buf[p->col] = c;
+	if (p->tcol->lastcol < ++p->col)
+		p->tcol->lastcol = p->col;
+}
+
+/*
+ * See encode().
+ * Do this for a single (probably unicode) value.
+ * Does not check for non-decorated glyphs.
+ */
+static void
+encode1(struct termp *p, int c)
+{
+	enum termfont	  f;
+
+	if (p->flags & TERMP_NOBUF) {
+		(*p->letter)(p, c);
+		return;
+	}
+
+	if (p->col + 7 >= p->tcol->maxcols)
+		adjbuf(p->tcol, p->col + 7);
+
+	f = (c == ASCII_HYPH || c > 127 || isgraph(c)) ?
+	    p->fontq[p->fonti] : TERMFONT_NONE;
+
+	if (p->flags & TERMP_BACKBEFORE) {
+		if (p->tcol->buf[p->col - 1] == ' ' ||
+		    p->tcol->buf[p->col - 1] == '\t')
+			p->col--;
+		else
+			p->tcol->buf[p->col++] = '\b';
+		p->flags &= ~TERMP_BACKBEFORE;
+	}
+	if (f == TERMFONT_UNDER || f == TERMFONT_BI) {
+		p->tcol->buf[p->col++] = '_';
+		p->tcol->buf[p->col++] = '\b';
+	}
+	if (f == TERMFONT_BOLD || f == TERMFONT_BI) {
+		if (c == ASCII_HYPH)
+			p->tcol->buf[p->col++] = '-';
+		else
+			p->tcol->buf[p->col++] = c;
+		p->tcol->buf[p->col++] = '\b';
+	}
+	if (p->tcol->lastcol <= p->col || (c != ' ' && c != ASCII_NBRSP))
+		p->tcol->buf[p->col] = c;
+	if (p->tcol->lastcol < ++p->col)
+		p->tcol->lastcol = p->col;
+	if (p->flags & TERMP_BACKAFTER) {
+		p->flags |= TERMP_BACKBEFORE;
+		p->flags &= ~TERMP_BACKAFTER;
+	}
+}
+
+static void
+encode(struct termp *p, const char *word, size_t sz)
+{
+	size_t		  i;
+
+	if (p->flags & TERMP_NOBUF) {
+		for (i = 0; i < sz; i++)
+			(*p->letter)(p, word[i]);
+		return;
+	}
+
+	if (p->col + 2 + (sz * 5) >= p->tcol->maxcols)
+		adjbuf(p->tcol, p->col + 2 + (sz * 5));
+
+	for (i = 0; i < sz; i++) {
+		if (ASCII_HYPH == word[i] ||
+		    isgraph((unsigned char)word[i]))
+			encode1(p, word[i]);
+		else {
+			if (p->tcol->lastcol <= p->col ||
+			    (word[i] != ' ' && word[i] != ASCII_NBRSP))
+				p->tcol->buf[p->col] = word[i];
+			p->col++;
+
+			/*
+			 * Postpone the effect of \z while handling
+			 * an overstrike sequence from ascii_uc2str().
+			 */
+
+			if (word[i] == '\b' &&
+			    (p->flags & TERMP_BACKBEFORE)) {
+				p->flags &= ~TERMP_BACKBEFORE;
+				p->flags |= TERMP_BACKAFTER;
+			}
+		}
+	}
+	if (p->tcol->lastcol < p->col)
+		p->tcol->lastcol = p->col;
+}
+
+void
+term_setwidth(struct termp *p, const char *wstr)
+{
+	struct roffsu	 su;
+	int		 iop, width;
+
+	iop = 0;
+	width = 0;
+	if (NULL != wstr) {
+		switch (*wstr) {
+		case '+':
+			iop = 1;
+			wstr++;
+			break;
+		case '-':
+			iop = -1;
+			wstr++;
+			break;
+		default:
+			break;
+		}
+		if (a2roffsu(wstr, &su, SCALE_MAX) != NULL)
+			width = term_hspan(p, &su);
+		else
+			iop = 0;
+	}
+	(*p->setwidth)(p, iop, width);
+}
+
+size_t
+term_len(const struct termp *p, size_t sz)
+{
+
+	return (*p->width)(p, ' ') * sz;
+}
+
+static size_t
+cond_width(const struct termp *p, int c, int *skip)
+{
+
+	if (*skip) {
+		(*skip) = 0;
+		return 0;
+	} else
+		return (*p->width)(p, c);
+}
+
+size_t
+term_strlen(const struct termp *p, const char *cp)
+{
+	size_t		 sz, rsz, i;
+	int		 ssz, skip, uc;
+	const char	*seq, *rhs;
+	enum mandoc_esc	 esc;
+	static const char rej[] = { '\\', ASCII_NBRSP, ASCII_HYPH,
+			ASCII_BREAK, '\0' };
+
+	/*
+	 * Account for escaped sequences within string length
+	 * calculations.  This follows the logic in term_word() as we
+	 * must calculate the width of produced strings.
+	 */
+
+	sz = 0;
+	skip = 0;
+	while ('\0' != *cp) {
+		rsz = strcspn(cp, rej);
+		for (i = 0; i < rsz; i++)
+			sz += cond_width(p, *cp++, &skip);
+
+		switch (*cp) {
+		case '\\':
+			cp++;
+			esc = mandoc_escape(&cp, &seq, &ssz);
+			if (ESCAPE_ERROR == esc)
+				continue;
+
+			rhs = NULL;
+
+			switch (esc) {
+			case ESCAPE_UNICODE:
+				uc = mchars_num2uc(seq + 1, ssz - 1);
+				break;
+			case ESCAPE_NUMBERED:
+				uc = mchars_num2char(seq, ssz);
+				if (uc < 0)
+					continue;
+				break;
+			case ESCAPE_SPECIAL:
+				if (p->enc == TERMENC_ASCII) {
+					rhs = mchars_spec2str(seq, ssz, &rsz);
+					if (rhs != NULL)
+						break;
+				} else {
+					uc = mchars_spec2cp(seq, ssz);
+					if (uc > 0)
+						sz += cond_width(p, uc, &skip);
+				}
+				continue;
+			case ESCAPE_SKIPCHAR:
+				skip = 1;
+				continue;
+			case ESCAPE_OVERSTRIKE:
+				rsz = 0;
+				rhs = seq + ssz;
+				while (seq < rhs) {
+					if (*seq == '\\') {
+						mandoc_escape(&seq, NULL, NULL);
+						continue;
+					}
+					i = (*p->width)(p, *seq++);
+					if (rsz < i)
+						rsz = i;
+				}
+				sz += rsz;
+				continue;
+			default:
+				continue;
+			}
+
+			/*
+			 * Common handling for Unicode and numbered
+			 * character escape sequences.
+			 */
+
+			if (rhs == NULL) {
+				if (p->enc == TERMENC_ASCII) {
+					rhs = ascii_uc2str(uc);
+					rsz = strlen(rhs);
+				} else {
+					if ((uc < 0x20 && uc != 0x09) ||
+					    (uc > 0x7E && uc < 0xA0))
+						uc = 0xFFFD;
+					sz += cond_width(p, uc, &skip);
+					continue;
+				}
+			}
+
+			if (skip) {
+				skip = 0;
+				break;
+			}
+
+			/*
+			 * Common handling for all escape sequences
+			 * printing more than one character.
+			 */
+
+			for (i = 0; i < rsz; i++)
+				sz += (*p->width)(p, *rhs++);
+			break;
+		case ASCII_NBRSP:
+			sz += cond_width(p, ' ', &skip);
+			cp++;
+			break;
+		case ASCII_HYPH:
+			sz += cond_width(p, '-', &skip);
+			cp++;
+			break;
+		default:
+			break;
+		}
+	}
+
+	return sz;
+}
+
+int
+term_vspan(const struct termp *p, const struct roffsu *su)
+{
+	double		 r;
+	int		 ri;
+
+	switch (su->unit) {
+	case SCALE_BU:
+		r = su->scale / 40.0;
+		break;
+	case SCALE_CM:
+		r = su->scale * 6.0 / 2.54;
+		break;
+	case SCALE_FS:
+		r = su->scale * 65536.0 / 40.0;
+		break;
+	case SCALE_IN:
+		r = su->scale * 6.0;
+		break;
+	case SCALE_MM:
+		r = su->scale * 0.006;
+		break;
+	case SCALE_PC:
+		r = su->scale;
+		break;
+	case SCALE_PT:
+		r = su->scale / 12.0;
+		break;
+	case SCALE_EN:
+	case SCALE_EM:
+		r = su->scale * 0.6;
+		break;
+	case SCALE_VS:
+		r = su->scale;
+		break;
+	default:
+		abort();
+	}
+	ri = r > 0.0 ? r + 0.4995 : r - 0.4995;
+	return ri < 66 ? ri : 1;
+}
+
+/*
+ * Convert a scaling width to basic units, rounding towards 0.
+ */
+int
+term_hspan(const struct termp *p, const struct roffsu *su)
+{
+
+	return (*p->hspan)(p, su);
+}
+
+/*
+ * Convert a scaling width to basic units, rounding to closest.
+ */
+int
+term_hen(const struct termp *p, const struct roffsu *su)
+{
+	int bu;
+
+	if ((bu = (*p->hspan)(p, su)) >= 0)
+		return (bu + 11) / 24;
+	else
+		return -((-bu + 11) / 24);
+}

Added: vendor/mandoc/dist/term.h
===================================================================
--- vendor/mandoc/dist/term.h	                        (rev 0)
+++ vendor/mandoc/dist/term.h	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,156 @@
+/*	$Id: term.h,v 1.130 2017/07/08 14:51:05 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+enum	termenc {
+	TERMENC_ASCII,
+	TERMENC_LOCALE,
+	TERMENC_UTF8
+};
+
+enum	termtype {
+	TERMTYPE_CHAR,
+	TERMTYPE_PS,
+	TERMTYPE_PDF
+};
+
+enum	termfont {
+	TERMFONT_NONE = 0,
+	TERMFONT_BOLD,
+	TERMFONT_UNDER,
+	TERMFONT_BI,
+	TERMFONT__MAX
+};
+
+struct	eqn_box;
+struct	roff_meta;
+struct	roff_node;
+struct	tbl_span;
+struct	termp;
+
+typedef void	(*term_margin)(struct termp *, const struct roff_meta *);
+
+struct	termp_tbl {
+	int		  width;	/* width in fixed chars */
+	int		  decimal;	/* decimal point position */
+};
+
+struct	termp_col {
+	int		 *buf;		/* Output buffer. */
+	size_t		  maxcols;	/* Allocated bytes in buf. */
+	size_t		  lastcol;	/* Last byte in buf. */
+	size_t		  col;		/* Byte in buf to be written. */
+	size_t		  rmargin;	/* Current right margin. */
+	size_t		  offset;	/* Current left margin. */
+};
+
+struct	termp {
+	struct rofftbl	  tbl;		/* Table configuration. */
+	struct termp_col *tcols;	/* Array of table columns. */
+	struct termp_col *tcol;		/* Current table column. */
+	size_t		  maxtcol;	/* Allocated table columns. */
+	size_t		  lasttcol;	/* Last column currently used. */
+	size_t		  line;		/* Current output line number. */
+	size_t		  defindent;	/* Default indent for text. */
+	size_t		  defrmargin;	/* Right margin of the device. */
+	size_t		  lastrmargin;	/* Right margin before the last ll. */
+	size_t		  maxrmargin;	/* Max right margin. */
+	size_t		  col;		/* Byte position in buf. */
+	size_t		  viscol;	/* Chars on current line. */
+	size_t		  trailspace;	/* See term_flushln(). */
+	size_t		  minbl;	/* Minimum blanks before next field. */
+	int		  synopsisonly; /* Print the synopsis only. */
+	int		  mdocstyle;	/* Imitate mdoc(7) output. */
+	int		  ti;		/* Temporary indent for one line. */
+	int		  skipvsp;	/* Vertical space to skip. */
+	int		  flags;
+#define	TERMP_SENTENCE	 (1 << 0)	/* Space before a sentence. */
+#define	TERMP_NOSPACE	 (1 << 1)	/* No space before words. */
+#define	TERMP_NONOSPACE	 (1 << 2)	/* No space (no autounset). */
+#define	TERMP_NBRWORD	 (1 << 3)	/* Make next word nonbreaking. */
+#define	TERMP_KEEP	 (1 << 4)	/* Keep words together. */
+#define	TERMP_PREKEEP	 (1 << 5)	/* ...starting with the next one. */
+#define	TERMP_BACKAFTER	 (1 << 6)	/* Back up after next character. */
+#define	TERMP_BACKBEFORE (1 << 7)	/* Back up before next character. */
+#define	TERMP_NOBREAK	 (1 << 8)	/* See term_flushln(). */
+#define	TERMP_BRTRSP	 (1 << 9)	/* See term_flushln(). */
+#define	TERMP_BRIND	 (1 << 10)	/* See term_flushln(). */
+#define	TERMP_HANG	 (1 << 11)	/* See term_flushln(). */
+#define	TERMP_NOPAD	 (1 << 12)	/* See term_flushln(). */
+#define	TERMP_NOSPLIT	 (1 << 13)	/* Do not break line before .An. */
+#define	TERMP_SPLIT	 (1 << 14)	/* Break line before .An. */
+#define	TERMP_NONEWLINE	 (1 << 15)	/* No line break in nofill mode. */
+#define	TERMP_BRNEVER	 (1 << 16)	/* Don't even break at maxrmargin. */
+#define	TERMP_NOBUF	 (1 << 17)	/* Bypass output buffer. */
+#define	TERMP_NEWMC	 (1 << 18)	/* No .mc printed yet. */
+#define	TERMP_ENDMC	 (1 << 19)	/* Next break ends .mc mode. */
+#define	TERMP_MULTICOL	 (1 << 20)	/* Multiple column mode. */
+	enum termtype	  type;		/* Terminal, PS, or PDF. */
+	enum termenc	  enc;		/* Type of encoding. */
+	enum termfont	  fontl;	/* Last font set. */
+	enum termfont	 *fontq;	/* Symmetric fonts. */
+	int		  fontsz;	/* Allocated size of font stack */
+	int		  fonti;	/* Index of font stack. */
+	term_margin	  headf;	/* invoked to print head */
+	term_margin	  footf;	/* invoked to print foot */
+	void		(*letter)(struct termp *, int);
+	void		(*begin)(struct termp *);
+	void		(*end)(struct termp *);
+	void		(*endline)(struct termp *);
+	void		(*advance)(struct termp *, size_t);
+	void		(*setwidth)(struct termp *, int, int);
+	size_t		(*width)(const struct termp *, int);
+	int		(*hspan)(const struct termp *,
+				const struct roffsu *);
+	const void	 *argf;		/* arg for headf/footf */
+	const char	 *mc;		/* Margin character. */
+	struct termp_ps	 *ps;
+};
+
+
+const char	 *ascii_uc2str(int);
+
+void		  roff_term_pre(struct termp *, const struct roff_node *);
+
+void		  term_eqn(struct termp *, const struct eqn_box *);
+void		  term_tbl(struct termp *, const struct tbl_span *);
+void		  term_free(struct termp *);
+void		  term_setcol(struct termp *, size_t);
+void		  term_newln(struct termp *);
+void		  term_vspace(struct termp *);
+void		  term_word(struct termp *, const char *);
+void		  term_flushln(struct termp *);
+void		  term_begin(struct termp *, term_margin,
+			term_margin, const struct roff_meta *);
+void		  term_end(struct termp *);
+
+void		  term_setwidth(struct termp *, const char *);
+int		  term_hspan(const struct termp *, const struct roffsu *);
+int		  term_hen(const struct termp *, const struct roffsu *);
+int		  term_vspan(const struct termp *, const struct roffsu *);
+size_t		  term_strlen(const struct termp *, const char *);
+size_t		  term_len(const struct termp *, size_t);
+
+void		  term_tab_set(const struct termp *, const char *);
+void		  term_tab_iset(size_t);
+size_t		  term_tab_next(size_t);
+
+void		  term_fontpush(struct termp *, enum termfont);
+void		  term_fontpop(struct termp *);
+void		  term_fontpopq(struct termp *, int);
+void		  term_fontrepl(struct termp *, enum termfont);
+void		  term_fontlast(struct termp *);

Added: vendor/mandoc/dist/term_ascii.c
===================================================================
--- vendor/mandoc/dist/term_ascii.c	                        (rev 0)
+++ vendor/mandoc/dist/term_ascii.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,387 @@
+/*	$Id: term_ascii.c,v 1.58 2017/06/14 14:24:20 schwarze Exp $ */
+/*
+ * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#if HAVE_WCHAR
+#include <locale.h>
+#endif
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#if HAVE_WCHAR
+#include <wchar.h>
+#endif
+
+#include "mandoc.h"
+#include "mandoc_aux.h"
+#include "out.h"
+#include "term.h"
+#include "manconf.h"
+#include "main.h"
+
+static	struct termp	 *ascii_init(enum termenc, const struct manoutput *);
+static	int		  ascii_hspan(const struct termp *,
+				const struct roffsu *);
+static	size_t		  ascii_width(const struct termp *, int);
+static	void		  ascii_advance(struct termp *, size_t);
+static	void		  ascii_begin(struct termp *);
+static	void		  ascii_end(struct termp *);
+static	void		  ascii_endline(struct termp *);
+static	void		  ascii_letter(struct termp *, int);
+static	void		  ascii_setwidth(struct termp *, int, int);
+
+#if HAVE_WCHAR
+static	void		  locale_advance(struct termp *, size_t);
+static	void		  locale_endline(struct termp *);
+static	void		  locale_letter(struct termp *, int);
+static	size_t		  locale_width(const struct termp *, int);
+#endif
+
+
+static struct termp *
+ascii_init(enum termenc enc, const struct manoutput *outopts)
+{
+#if HAVE_WCHAR
+	char		*v;
+#endif
+	struct termp	*p;
+
+	p = mandoc_calloc(1, sizeof(*p));
+	p->tcol = p->tcols = mandoc_calloc(1, sizeof(*p->tcol));
+	p->maxtcol = 1;
+
+	p->line = 1;
+	p->defrmargin = p->lastrmargin = 78;
+	p->fontq = mandoc_reallocarray(NULL,
+	     (p->fontsz = 8), sizeof(*p->fontq));
+	p->fontq[0] = p->fontl = TERMFONT_NONE;
+
+	p->begin = ascii_begin;
+	p->end = ascii_end;
+	p->hspan = ascii_hspan;
+	p->type = TERMTYPE_CHAR;
+
+	p->enc = TERMENC_ASCII;
+	p->advance = ascii_advance;
+	p->endline = ascii_endline;
+	p->letter = ascii_letter;
+	p->setwidth = ascii_setwidth;
+	p->width = ascii_width;
+
+#if HAVE_WCHAR
+	if (TERMENC_ASCII != enc) {
+
+		/*
+		 * Do not change any of this to LC_ALL.  It might break
+		 * the formatting by subtly changing the behaviour of
+		 * various functions, for example strftime(3).  As a
+		 * worst case, it might even cause buffer overflows.
+		 */
+
+		v = TERMENC_LOCALE == enc ?
+		    setlocale(LC_CTYPE, "") :
+		    setlocale(LC_CTYPE, UTF8_LOCALE);
+		if (NULL != v && MB_CUR_MAX > 1) {
+			p->enc = enc;
+			p->advance = locale_advance;
+			p->endline = locale_endline;
+			p->letter = locale_letter;
+			p->width = locale_width;
+		}
+	}
+#endif
+
+	if (outopts->mdoc) {
+		p->mdocstyle = 1;
+		p->defindent = 5;
+	}
+	if (outopts->indent)
+		p->defindent = outopts->indent;
+	if (outopts->width)
+		p->defrmargin = outopts->width;
+	if (outopts->synopsisonly)
+		p->synopsisonly = 1;
+
+	return p;
+}
+
+void *
+ascii_alloc(const struct manoutput *outopts)
+{
+
+	return ascii_init(TERMENC_ASCII, outopts);
+}
+
+void *
+utf8_alloc(const struct manoutput *outopts)
+{
+
+	return ascii_init(TERMENC_UTF8, outopts);
+}
+
+void *
+locale_alloc(const struct manoutput *outopts)
+{
+
+	return ascii_init(TERMENC_LOCALE, outopts);
+}
+
+static void
+ascii_setwidth(struct termp *p, int iop, int width)
+{
+
+	width /= 24;
+	p->tcol->rmargin = p->defrmargin;
+	if (iop > 0)
+		p->defrmargin += width;
+	else if (iop == 0)
+		p->defrmargin = width ? (size_t)width : p->lastrmargin;
+	else if (p->defrmargin > (size_t)width)
+		p->defrmargin -= width;
+	else
+		p->defrmargin = 0;
+	p->lastrmargin = p->tcol->rmargin;
+	p->tcol->rmargin = p->maxrmargin = p->defrmargin;
+}
+
+void
+terminal_sepline(void *arg)
+{
+	struct termp	*p;
+	size_t		 i;
+
+	p = (struct termp *)arg;
+	(*p->endline)(p);
+	for (i = 0; i < p->defrmargin; i++)
+		(*p->letter)(p, '-');
+	(*p->endline)(p);
+	(*p->endline)(p);
+}
+
+static size_t
+ascii_width(const struct termp *p, int c)
+{
+
+	return 1;
+}
+
+void
+ascii_free(void *arg)
+{
+
+	term_free((struct termp *)arg);
+}
+
+static void
+ascii_letter(struct termp *p, int c)
+{
+
+	putchar(c);
+}
+
+static void
+ascii_begin(struct termp *p)
+{
+
+	(*p->headf)(p, p->argf);
+}
+
+static void
+ascii_end(struct termp *p)
+{
+
+	(*p->footf)(p, p->argf);
+}
+
+static void
+ascii_endline(struct termp *p)
+{
+
+	p->line++;
+	p->tcol->offset -= p->ti;
+	p->ti = 0;
+	putchar('\n');
+}
+
+static void
+ascii_advance(struct termp *p, size_t len)
+{
+	size_t		i;
+
+	for (i = 0; i < len; i++)
+		putchar(' ');
+}
+
+static int
+ascii_hspan(const struct termp *p, const struct roffsu *su)
+{
+	double		 r;
+
+	switch (su->unit) {
+	case SCALE_BU:
+		r = su->scale;
+		break;
+	case SCALE_CM:
+		r = su->scale * 240.0 / 2.54;
+		break;
+	case SCALE_FS:
+		r = su->scale * 65536.0;
+		break;
+	case SCALE_IN:
+		r = su->scale * 240.0;
+		break;
+	case SCALE_MM:
+		r = su->scale * 0.24;
+		break;
+	case SCALE_VS:
+	case SCALE_PC:
+		r = su->scale * 40.0;
+		break;
+	case SCALE_PT:
+		r = su->scale * 10.0 / 3.0;
+		break;
+	case SCALE_EN:
+	case SCALE_EM:
+		r = su->scale * 24.0;
+		break;
+	default:
+		abort();
+	}
+	return r > 0.0 ? r + 0.01 : r - 0.01;
+}
+
+const char *
+ascii_uc2str(int uc)
+{
+	static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
+	static const char *tab[] = {
+	"<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
+	"<BS>",	"\t",	"<LF>",	"<VT>",	"<FF>",	"<CR>",	"<SO>",	"<SI>",
+	"<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
+	"<CAN>","<EM>",	"<SUB>","<ESC>","<FS>",	"<GS>",	"<RS>",	"<US>",
+	" ",	"!",	"\"",	"#",	"$",	"%",	"&",	"'",
+	"(",	")",	"*",	"+",	",",	"-",	".",	"/",
+	"0",	"1",	"2",	"3",	"4",	"5",	"6",	"7",
+	"8",	"9",	":",	";",	"<",	"=",	">",	"?",
+	"@",	"A",	"B",	"C",	"D",	"E",	"F",	"G",
+	"H",	"I",	"J",	"K",	"L",	"M",	"N",	"O",
+	"P",	"Q",	"R",	"S",	"T",	"U",	"V",	"W",
+	"X",	"Y",	"Z",	"[",	"\\",	"]",	"^",	"_",
+	"`",	"a",	"b",	"c",	"d",	"e",	"f",	"g",
+	"h",	"i",	"j",	"k",	"l",	"m",	"n",	"o",
+	"p",	"q",	"r",	"s",	"t",	"u",	"v",	"w",
+	"x",	"y",	"z",	"{",	"|",	"}",	"~",	"<DEL>",
+	"<80>",	"<81>",	"<82>",	"<83>",	"<84>",	"<85>",	"<86>",	"<87>",
+	"<88>",	"<89>",	"<8A>",	"<8B>",	"<8C>",	"<8D>",	"<8E>",	"<8F>",
+	"<90>",	"<91>",	"<92>",	"<93>",	"<94>",	"<95>",	"<96>",	"<97>",
+	"<98>",	"<99>",	"<9A>",	"<9B>",	"<9C>",	"<9D>",	"<9E>",	"<9F>",
+	nbrsp,	"!",	"/\bc",	"GBP",	"o\bx",	"=\bY",	"|",	"<sec>",
+	"\"",	"(C)",	"_\ba",	"<<",	"~",	"",	"(R)",	"-",
+	"<deg>","+-",	"2",	"3",	"'",	",\bu",	"<par>",".",
+	",",	"1",	"_\bo",	">>",	"1/4",	"1/2",	"3/4",	"?",
+	"`\bA",	"'\bA",	"^\bA",	"~\bA",	"\"\bA","o\bA",	"AE",	",\bC",
+	"`\bE",	"'\bE",	"^\bE",	"\"\bE","`\bI",	"'\bI",	"^\bI",	"\"\bI",
+	"-\bD",	"~\bN",	"`\bO",	"'\bO",	"^\bO",	"~\bO",	"\"\bO","x",
+	"/\bO",	"`\bU",	"'\bU",	"^\bU",	"\"\bU","'\bY",	"Th",	"ss",
+	"`\ba",	"'\ba",	"^\ba",	"~\ba",	"\"\ba","o\ba",	"ae",	",\bc",
+	"`\be",	"'\be",	"^\be",	"\"\be","`\bi",	"'\bi",	"^\bi",	"\"\bi",
+	"d",	"~\bn",	"`\bo",	"'\bo",	"^\bo",	"~\bo",	"\"\bo","-:-",
+	"/\bo",	"`\bu",	"'\bu",	"^\bu",	"\"\bu","'\by",	"th",	"\"\by",
+	"A",	"a",	"A",	"a",	"A",	"a",	"'\bC",	"'\bc",
+	"^\bC",	"^\bc",	"C",	"c",	"C",	"c",	"D",	"d",
+	"/\bD",	"/\bd",	"E",	"e",	"E",	"e",	"E",	"e",
+	"E",	"e",	"E",	"e",	"^\bG",	"^\bg",	"G",	"g",
+	"G",	"g",	",\bG",	",\bg",	"^\bH",	"^\bh",	"/\bH",	"/\bh",
+	"~\bI",	"~\bi",	"I",	"i",	"I",	"i",	"I",	"i",
+	"I",	"i",	"IJ",	"ij",	"^\bJ",	"^\bj",	",\bK",	",\bk",
+	"q",	"'\bL",	"'\bl",	",\bL",	",\bl",	"L",	"l",	"L",
+	"l",	"/\bL",	"/\bl",	"'\bN",	"'\bn",	",\bN",	",\bn",	"N",
+	"n",	"'n",	"Ng",	"ng",	"O",	"o",	"O",	"o",
+	"O",	"o",	"OE",	"oe",	"'\bR",	"'\br",	",\bR",	",\br",
+	"R",	"r",	"'\bS",	"'\bs",	"^\bS",	"^\bs",	",\bS",	",\bs",
+	"S",	"s",	",\bT",	",\bt",	"T",	"t",	"/\bT",	"/\bt",
+	"~\bU",	"~\bu",	"U",	"u",	"U",	"u",	"U",	"u",
+	"U",	"u",	"U",	"u",	"^\bW",	"^\bw",	"^\bY",	"^\by",
+	"\"\bY","'\bZ",	"'\bz",	"Z",	"z",	"Z",	"z",	"s",
+	"b",	"B",	"B",	"b",	"6",	"6",	"O",	"C",
+	"c",	"D",	"D",	"D",	"d",	"d",	"3",	"@",
+	"E",	"F",	",\bf",	"G",	"G",	"hv",	"I",	"/\bI",
+	"K",	"k",	"/\bl",	"l",	"W",	"N",	"n",	"~\bO",
+	"O",	"o",	"OI",	"oi",	"P",	"p",	"YR",	"2",
+	"2",	"SH",	"sh",	"t",	"T",	"t",	"T",	"U",
+	"u",	"Y",	"V",	"Y",	"y",	"/\bZ",	"/\bz",	"ZH",
+	"ZH",	"zh",	"zh",	"/\b2",	"5",	"5",	"ts",	"w",
+	"|",	"||",	"|=",	"!",	"DZ",	"Dz",	"dz",	"LJ",
+	"Lj",	"lj",	"NJ",	"Nj",	"nj",	"A",	"a",	"I",
+	"i",	"O",	"o",	"U",	"u",	"U",	"u",	"U",
+	"u",	"U",	"u",	"U",	"u",	"@",	"A",	"a",
+	"A",	"a",	"AE",	"ae",	"/\bG",	"/\bg",	"G",	"g",
+	"K",	"k",	"O",	"o",	"O",	"o",	"ZH",	"zh",
+	"j",	"DZ",	"Dz",	"dz",	"'\bG",	"'\bg",	"HV",	"W",
+	"`\bN",	"`\bn",	"A",	"a",	"'\bAE","'\bae","O",	"o"};
+
+	assert(uc >= 0);
+	if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
+		return tab[uc];
+	return mchars_uc2str(uc);
+}
+
+#if HAVE_WCHAR
+static size_t
+locale_width(const struct termp *p, int c)
+{
+	int		rc;
+
+	if (c == ASCII_NBRSP)
+		c = ' ';
+	rc = wcwidth(c);
+	if (rc < 0)
+		rc = 0;
+	return rc;
+}
+
+static void
+locale_advance(struct termp *p, size_t len)
+{
+	size_t		i;
+
+	for (i = 0; i < len; i++)
+		putwchar(L' ');
+}
+
+static void
+locale_endline(struct termp *p)
+{
+
+	p->line++;
+	p->tcol->offset -= p->ti;
+	p->ti = 0;
+	putwchar(L'\n');
+}
+
+static void
+locale_letter(struct termp *p, int c)
+{
+
+	putwchar(c);
+}
+#endif

Added: vendor/mandoc/dist/term_ps.c
===================================================================
--- vendor/mandoc/dist/term_ps.c	                        (rev 0)
+++ vendor/mandoc/dist/term_ps.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,1331 @@
+/*	$Id: term_ps.c,v 1.85 2017/06/07 17:38:26 schwarze Exp $ */
+/*
+ * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "out.h"
+#include "term.h"
+#include "manconf.h"
+#include "main.h"
+
+/* These work the buffer used by the header and footer. */
+#define	PS_BUFSLOP	  128
+
+/* Convert PostScript point "x" to an AFM unit. */
+#define	PNT2AFM(p, x) \
+	(size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
+
+/* Convert an AFM unit "x" to a PostScript points */
+#define	AFM2PNT(p, x) \
+	((double)(x) / (1000.0 / (double)(p)->ps->scale))
+
+struct	glyph {
+	unsigned short	  wx; /* WX in AFM */
+};
+
+struct	font {
+	const char	 *name; /* FontName in AFM */
+#define	MAXCHAR		  95 /* total characters we can handle */
+	struct glyph	  gly[MAXCHAR]; /* glyph metrics */
+};
+
+struct	termp_ps {
+	int		  flags;
+#define	PS_INLINE	 (1 << 0)	/* we're in a word */
+#define	PS_MARGINS	 (1 << 1)	/* we're in the margins */
+#define	PS_NEWPAGE	 (1 << 2)	/* new page, no words yet */
+#define	PS_BACKSP	 (1 << 3)	/* last character was backspace */
+	size_t		  pscol;	/* visible column (AFM units) */
+	size_t		  pscolnext;	/* used for overstrike */
+	size_t		  psrow;	/* visible row (AFM units) */
+	char		 *psmarg;	/* margin buf */
+	size_t		  psmargsz;	/* margin buf size */
+	size_t		  psmargcur;	/* cur index in margin buf */
+	char		  last;		/* last non-backspace seen */
+	enum termfont	  lastf;	/* last set font */
+	enum termfont	  nextf;	/* building next font here */
+	size_t		  scale;	/* font scaling factor */
+	size_t		  pages;	/* number of pages shown */
+	size_t		  lineheight;	/* line height (AFM units) */
+	size_t		  top;		/* body top (AFM units) */
+	size_t		  bottom;	/* body bottom (AFM units) */
+	size_t		  height;	/* page height (AFM units */
+	size_t		  width;	/* page width (AFM units) */
+	size_t		  lastwidth;	/* page width before last ll */
+	size_t		  left;		/* body left (AFM units) */
+	size_t		  header;	/* header pos (AFM units) */
+	size_t		  footer;	/* footer pos (AFM units) */
+	size_t		  pdfbytes;	/* current output byte */
+	size_t		  pdflastpg;	/* byte of last page mark */
+	size_t		  pdfbody;	/* start of body object */
+	size_t		 *pdfobjs;	/* table of object offsets */
+	size_t		  pdfobjsz;	/* size of pdfobjs */
+};
+
+static	int		  ps_hspan(const struct termp *,
+				const struct roffsu *);
+static	size_t		  ps_width(const struct termp *, int);
+static	void		  ps_advance(struct termp *, size_t);
+static	void		  ps_begin(struct termp *);
+static	void		  ps_closepage(struct termp *);
+static	void		  ps_end(struct termp *);
+static	void		  ps_endline(struct termp *);
+static	void		  ps_growbuf(struct termp *, size_t);
+static	void		  ps_letter(struct termp *, int);
+static	void		  ps_pclose(struct termp *);
+static	void		  ps_plast(struct termp *);
+static	void		  ps_pletter(struct termp *, int);
+static	void		  ps_printf(struct termp *, const char *, ...)
+				__attribute__((__format__ (__printf__, 2, 3)));
+static	void		  ps_putchar(struct termp *, char);
+static	void		  ps_setfont(struct termp *, enum termfont);
+static	void		  ps_setwidth(struct termp *, int, int);
+static	struct termp	 *pspdf_alloc(const struct manoutput *);
+static	void		  pdf_obj(struct termp *, size_t);
+
+/*
+ * We define, for the time being, three fonts: bold, oblique/italic, and
+ * normal (roman).  The following table hard-codes the font metrics for
+ * ASCII, i.e., 32--127.
+ */
+
+static	const struct font fonts[TERMFONT__MAX] = {
+	{ "Times-Roman", {
+		{ 250 },
+		{ 333 },
+		{ 408 },
+		{ 500 },
+		{ 500 },
+		{ 833 },
+		{ 778 },
+		{ 333 },
+		{ 333 },
+		{ 333 },
+		{ 500 },
+		{ 564 },
+		{ 250 },
+		{ 333 },
+		{ 250 },
+		{ 278 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 500 },
+		{ 278 },
+		{ 278 },
+		{ 564 },
+		{ 564 },
+		{ 564 },
+		{ 444 },
+		{ 921 },
+		{ 722 },
+		{ 667 },
+		{ 667 },
+		{ 722 },
+		{ 611 },
+		{ 556 },
+		{ 722 },
+		{ 722 },
+		{ 333 },
+		{ 389 },
+		{ 722 },
+		{ 611 },
+		{ 889 },
+		{ 722 },
+		{ 722 },
+		{ 556 },
+		{ 722 },
+		{ 667 },
+		{ 556 },
+		{ 611 },
+		{ 722 },
+		{ 722 },
+		{ 944 },
+		{ 722 },
+		{ 722 },
+		{ 611 },
+		{ 333 },
+		{ 278 },
+		{ 333 },
+		{ 469 },
+		{ 500 },
+		{ 333 },
+		{ 444 },
+		{ 500 },
+		{ 444 },
+		{  500},
+		{  444},
+		{  333},
+		{  500},
+		{  500},
+		{  278},
+		{  278},
+		{  500},
+		{  278},
+		{  778},
+		{  500},
+		{  500},
+		{  500},
+		{  500},
+		{  333},
+		{  389},
+		{  278},
+		{  500},
+		{  500},
+		{  722},
+		{  500},
+		{  500},
+		{  444},
+		{  480},
+		{  200},
+		{  480},
+		{  541},
+	} },
+	{ "Times-Bold", {
+		{ 250  },
+		{ 333  },
+		{ 555  },
+		{ 500  },
+		{ 500  },
+		{ 1000 },
+		{ 833  },
+		{ 333  },
+		{ 333  },
+		{ 333  },
+		{ 500  },
+		{ 570  },
+		{ 250  },
+		{ 333  },
+		{ 250  },
+		{ 278  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 333  },
+		{ 333  },
+		{ 570  },
+		{ 570  },
+		{ 570  },
+		{ 500  },
+		{ 930  },
+		{ 722  },
+		{ 667  },
+		{ 722  },
+		{ 722  },
+		{ 667  },
+		{ 611  },
+		{ 778  },
+		{ 778  },
+		{ 389  },
+		{ 500  },
+		{ 778  },
+		{ 667  },
+		{ 944  },
+		{ 722  },
+		{ 778  },
+		{ 611  },
+		{ 778  },
+		{ 722  },
+		{ 556  },
+		{ 667  },
+		{ 722  },
+		{ 722  },
+		{ 1000 },
+		{ 722  },
+		{ 722  },
+		{ 667  },
+		{ 333  },
+		{ 278  },
+		{ 333  },
+		{ 581  },
+		{ 500  },
+		{ 333  },
+		{ 500  },
+		{ 556  },
+		{ 444  },
+		{  556 },
+		{  444 },
+		{  333 },
+		{  500 },
+		{  556 },
+		{  278 },
+		{  333 },
+		{  556 },
+		{  278 },
+		{  833 },
+		{  556 },
+		{  500 },
+		{  556 },
+		{  556 },
+		{  444 },
+		{  389 },
+		{  333 },
+		{  556 },
+		{  500 },
+		{  722 },
+		{  500 },
+		{  500 },
+		{  444 },
+		{  394 },
+		{  220 },
+		{  394 },
+		{  520 },
+	} },
+	{ "Times-Italic", {
+		{ 250  },
+		{ 333  },
+		{ 420  },
+		{ 500  },
+		{ 500  },
+		{ 833  },
+		{ 778  },
+		{ 333  },
+		{ 333  },
+		{ 333  },
+		{ 500  },
+		{ 675  },
+		{ 250  },
+		{ 333  },
+		{ 250  },
+		{ 278  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 500  },
+		{ 333  },
+		{ 333  },
+		{ 675  },
+		{ 675  },
+		{ 675  },
+		{ 500  },
+		{ 920  },
+		{ 611  },
+		{ 611  },
+		{ 667  },
+		{ 722  },
+		{ 611  },
+		{ 611  },
+		{ 722  },
+		{ 722  },
+		{ 333  },
+		{ 444  },
+		{ 667  },
+		{ 556  },
+		{ 833  },
+		{ 667  },
+		{ 722  },
+		{ 611  },
+		{ 722  },
+		{ 611  },
+		{ 500  },
+		{ 556  },
+		{ 722  },
+		{ 611  },
+		{ 833  },
+		{ 611  },
+		{ 556  },
+		{ 556  },
+		{ 389  },
+		{ 278  },
+		{ 389  },
+		{ 422  },
+		{ 500  },
+		{ 333  },
+		{ 500  },
+		{ 500  },
+		{ 444  },
+		{  500 },
+		{  444 },
+		{  278 },
+		{  500 },
+		{  500 },
+		{  278 },
+		{  278 },
+		{  444 },
+		{  278 },
+		{  722 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  389 },
+		{  389 },
+		{  278 },
+		{  500 },
+		{  444 },
+		{  667 },
+		{  444 },
+		{  444 },
+		{  389 },
+		{  400 },
+		{  275 },
+		{  400 },
+		{  541 },
+	} },
+	{ "Times-BoldItalic", {
+		{  250 },
+		{  389 },
+		{  555 },
+		{  500 },
+		{  500 },
+		{  833 },
+		{  778 },
+		{  333 },
+		{  333 },
+		{  333 },
+		{  500 },
+		{  570 },
+		{  250 },
+		{  333 },
+		{  250 },
+		{  278 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  333 },
+		{  333 },
+		{  570 },
+		{  570 },
+		{  570 },
+		{  500 },
+		{  832 },
+		{  667 },
+		{  667 },
+		{  667 },
+		{  722 },
+		{  667 },
+		{  667 },
+		{  722 },
+		{  778 },
+		{  389 },
+		{  500 },
+		{  667 },
+		{  611 },
+		{  889 },
+		{  722 },
+		{  722 },
+		{  611 },
+		{  722 },
+		{  667 },
+		{  556 },
+		{  611 },
+		{  722 },
+		{  667 },
+		{  889 },
+		{  667 },
+		{  611 },
+		{  611 },
+		{  333 },
+		{  278 },
+		{  333 },
+		{  570 },
+		{  500 },
+		{  333 },
+		{  500 },
+		{  500 },
+		{  444 },
+		{  500 },
+		{  444 },
+		{  333 },
+		{  500 },
+		{  556 },
+		{  278 },
+		{  278 },
+		{  500 },
+		{  278 },
+		{  778 },
+		{  556 },
+		{  500 },
+		{  500 },
+		{  500 },
+		{  389 },
+		{  389 },
+		{  278 },
+		{  556 },
+		{  444 },
+		{  667 },
+		{  500 },
+		{  444 },
+		{  389 },
+		{  348 },
+		{  220 },
+		{  348 },
+		{  570 },
+	} },
+};
+
+void *
+pdf_alloc(const struct manoutput *outopts)
+{
+	struct termp	*p;
+
+	if (NULL != (p = pspdf_alloc(outopts)))
+		p->type = TERMTYPE_PDF;
+
+	return p;
+}
+
+void *
+ps_alloc(const struct manoutput *outopts)
+{
+	struct termp	*p;
+
+	if (NULL != (p = pspdf_alloc(outopts)))
+		p->type = TERMTYPE_PS;
+
+	return p;
+}
+
+static struct termp *
+pspdf_alloc(const struct manoutput *outopts)
+{
+	struct termp	*p;
+	unsigned int	 pagex, pagey;
+	size_t		 marginx, marginy, lineheight;
+	const char	*pp;
+
+	p = mandoc_calloc(1, sizeof(*p));
+	p->tcol = p->tcols = mandoc_calloc(1, sizeof(*p->tcol));
+	p->maxtcol = 1;
+
+	p->enc = TERMENC_ASCII;
+	p->fontq = mandoc_reallocarray(NULL,
+	    (p->fontsz = 8), sizeof(*p->fontq));
+	p->fontq[0] = p->fontl = TERMFONT_NONE;
+	p->ps = mandoc_calloc(1, sizeof(*p->ps));
+
+	p->advance = ps_advance;
+	p->begin = ps_begin;
+	p->end = ps_end;
+	p->endline = ps_endline;
+	p->hspan = ps_hspan;
+	p->letter = ps_letter;
+	p->setwidth = ps_setwidth;
+	p->width = ps_width;
+
+	/* Default to US letter (millimetres). */
+
+	pagex = 216;
+	pagey = 279;
+
+	/*
+	 * The ISO-269 paper sizes can be calculated automatically, but
+	 * it would require bringing in -lm for pow() and I'd rather not
+	 * do that.  So just do it the easy way for now.  Since this
+	 * only happens once, I'm not terribly concerned.
+	 */
+
+	pp = outopts->paper;
+	if (pp && strcasecmp(pp, "letter")) {
+		if (0 == strcasecmp(pp, "a3")) {
+			pagex = 297;
+			pagey = 420;
+		} else if (0 == strcasecmp(pp, "a4")) {
+			pagex = 210;
+			pagey = 297;
+		} else if (0 == strcasecmp(pp, "a5")) {
+			pagex = 148;
+			pagey = 210;
+		} else if (0 == strcasecmp(pp, "legal")) {
+			pagex = 216;
+			pagey = 356;
+		} else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
+			warnx("%s: Unknown paper", pp);
+	}
+
+	/*
+	 * This MUST be defined before any PNT2AFM or AFM2PNT
+	 * calculations occur.
+	 */
+
+	p->ps->scale = 11;
+
+	/* Remember millimetres -> AFM units. */
+
+	pagex = PNT2AFM(p, ((double)pagex * 2.834));
+	pagey = PNT2AFM(p, ((double)pagey * 2.834));
+
+	/* Margins are 1/9 the page x and y. */
+
+	marginx = (size_t)((double)pagex / 9.0);
+	marginy = (size_t)((double)pagey / 9.0);
+
+	/* Line-height is 1.4em. */
+
+	lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
+
+	p->ps->width = p->ps->lastwidth = (size_t)pagex;
+	p->ps->height = (size_t)pagey;
+	p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
+	p->ps->top = pagey - marginy;
+	p->ps->footer = (marginy / 2) - (lineheight / 2);
+	p->ps->bottom = marginy;
+	p->ps->left = marginx;
+	p->ps->lineheight = lineheight;
+
+	p->defrmargin = pagex - (marginx * 2);
+	return p;
+}
+
+static void
+ps_setwidth(struct termp *p, int iop, int width)
+{
+	size_t	 lastwidth;
+
+	lastwidth = p->ps->width;
+	if (iop > 0)
+		p->ps->width += width;
+	else if (iop == 0)
+		p->ps->width = width ? (size_t)width : p->ps->lastwidth;
+	else if (p->ps->width > (size_t)width)
+		p->ps->width -= width;
+	else
+		p->ps->width = 0;
+	p->ps->lastwidth = lastwidth;
+}
+
+void
+pspdf_free(void *arg)
+{
+	struct termp	*p;
+
+	p = (struct termp *)arg;
+
+	free(p->ps->psmarg);
+	free(p->ps->pdfobjs);
+
+	free(p->ps);
+	term_free(p);
+}
+
+static void
+ps_printf(struct termp *p, const char *fmt, ...)
+{
+	va_list		 ap;
+	int		 pos, len;
+
+	va_start(ap, fmt);
+
+	/*
+	 * If we're running in regular mode, then pipe directly into
+	 * vprintf().  If we're processing margins, then push the data
+	 * into our growable margin buffer.
+	 */
+
+	if ( ! (PS_MARGINS & p->ps->flags)) {
+		len = vprintf(fmt, ap);
+		va_end(ap);
+		p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
+		return;
+	}
+
+	/*
+	 * XXX: I assume that the in-margin print won't exceed
+	 * PS_BUFSLOP (128 bytes), which is reasonable but still an
+	 * assumption that will cause pukeage if it's not the case.
+	 */
+
+	ps_growbuf(p, PS_BUFSLOP);
+
+	pos = (int)p->ps->psmargcur;
+	vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
+
+	va_end(ap);
+
+	p->ps->psmargcur = strlen(p->ps->psmarg);
+}
+
+static void
+ps_putchar(struct termp *p, char c)
+{
+	int		 pos;
+
+	/* See ps_printf(). */
+
+	if ( ! (PS_MARGINS & p->ps->flags)) {
+		putchar(c);
+		p->ps->pdfbytes++;
+		return;
+	}
+
+	ps_growbuf(p, 2);
+
+	pos = (int)p->ps->psmargcur++;
+	p->ps->psmarg[pos++] = c;
+	p->ps->psmarg[pos] = '\0';
+}
+
+static void
+pdf_obj(struct termp *p, size_t obj)
+{
+
+	assert(obj > 0);
+
+	if ((obj - 1) >= p->ps->pdfobjsz) {
+		p->ps->pdfobjsz = obj + 128;
+		p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
+		    p->ps->pdfobjsz, sizeof(size_t));
+	}
+
+	p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
+	ps_printf(p, "%zu 0 obj\n", obj);
+}
+
+static void
+ps_closepage(struct termp *p)
+{
+	int		 i;
+	size_t		 len, base;
+
+	/*
+	 * Close out a page that we've already flushed to output.  In
+	 * PostScript, we simply note that the page must be showed.  In
+	 * PDF, we must now create the Length, Resource, and Page node
+	 * for the page contents.
+	 */
+
+	assert(p->ps->psmarg && p->ps->psmarg[0]);
+	ps_printf(p, "%s", p->ps->psmarg);
+
+	if (TERMTYPE_PS != p->type) {
+		ps_printf(p, "ET\n");
+
+		len = p->ps->pdfbytes - p->ps->pdflastpg;
+		base = p->ps->pages * 4 + p->ps->pdfbody;
+
+		ps_printf(p, "endstream\nendobj\n");
+
+		/* Length of content. */
+		pdf_obj(p, base + 1);
+		ps_printf(p, "%zu\nendobj\n", len);
+
+		/* Resource for content. */
+		pdf_obj(p, base + 2);
+		ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
+		ps_printf(p, "/Font <<\n");
+		for (i = 0; i < (int)TERMFONT__MAX; i++)
+			ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
+		ps_printf(p, ">>\n>>\n");
+
+		/* Page node. */
+		pdf_obj(p, base + 3);
+		ps_printf(p, "<<\n");
+		ps_printf(p, "/Type /Page\n");
+		ps_printf(p, "/Parent 2 0 R\n");
+		ps_printf(p, "/Resources %zu 0 R\n", base + 2);
+		ps_printf(p, "/Contents %zu 0 R\n", base);
+		ps_printf(p, ">>\nendobj\n");
+	} else
+		ps_printf(p, "showpage\n");
+
+	p->ps->pages++;
+	p->ps->psrow = p->ps->top;
+	assert( ! (PS_NEWPAGE & p->ps->flags));
+	p->ps->flags |= PS_NEWPAGE;
+}
+
+static void
+ps_end(struct termp *p)
+{
+	size_t		 i, xref, base;
+
+	ps_plast(p);
+	ps_pclose(p);
+
+	/*
+	 * At the end of the file, do one last showpage.  This is the
+	 * same behaviour as groff(1) and works for multiple pages as
+	 * well as just one.
+	 */
+
+	if ( ! (PS_NEWPAGE & p->ps->flags)) {
+		assert(0 == p->ps->flags);
+		assert('\0' == p->ps->last);
+		ps_closepage(p);
+	}
+
+	if (TERMTYPE_PS == p->type) {
+		ps_printf(p, "%%%%Trailer\n");
+		ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
+		ps_printf(p, "%%%%EOF\n");
+		return;
+	}
+
+	pdf_obj(p, 2);
+	ps_printf(p, "<<\n/Type /Pages\n");
+	ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
+			(size_t)AFM2PNT(p, p->ps->width),
+			(size_t)AFM2PNT(p, p->ps->height));
+
+	ps_printf(p, "/Count %zu\n", p->ps->pages);
+	ps_printf(p, "/Kids [");
+
+	for (i = 0; i < p->ps->pages; i++)
+		ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
+
+	base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
+
+	ps_printf(p, "]\n>>\nendobj\n");
+	pdf_obj(p, base);
+	ps_printf(p, "<<\n");
+	ps_printf(p, "/Type /Catalog\n");
+	ps_printf(p, "/Pages 2 0 R\n");
+	ps_printf(p, ">>\n");
+	xref = p->ps->pdfbytes;
+	ps_printf(p, "xref\n");
+	ps_printf(p, "0 %zu\n", base + 1);
+	ps_printf(p, "0000000000 65535 f \n");
+
+	for (i = 0; i < base; i++)
+		ps_printf(p, "%.10zu 00000 n \n",
+		    p->ps->pdfobjs[(int)i]);
+
+	ps_printf(p, "trailer\n");
+	ps_printf(p, "<<\n");
+	ps_printf(p, "/Size %zu\n", base + 1);
+	ps_printf(p, "/Root %zu 0 R\n", base);
+	ps_printf(p, "/Info 1 0 R\n");
+	ps_printf(p, ">>\n");
+	ps_printf(p, "startxref\n");
+	ps_printf(p, "%zu\n", xref);
+	ps_printf(p, "%%%%EOF\n");
+}
+
+static void
+ps_begin(struct termp *p)
+{
+	int		 i;
+
+	/*
+	 * Print margins into margin buffer.  Nothing gets output to the
+	 * screen yet, so we don't need to initialise the primary state.
+	 */
+
+	if (p->ps->psmarg) {
+		assert(p->ps->psmargsz);
+		p->ps->psmarg[0] = '\0';
+	}
+
+	/*p->ps->pdfbytes = 0;*/
+	p->ps->psmargcur = 0;
+	p->ps->flags = PS_MARGINS;
+	p->ps->pscol = p->ps->left;
+	p->ps->psrow = p->ps->header;
+
+	ps_setfont(p, TERMFONT_NONE);
+
+	(*p->headf)(p, p->argf);
+	(*p->endline)(p);
+
+	p->ps->pscol = p->ps->left;
+	p->ps->psrow = p->ps->footer;
+
+	(*p->footf)(p, p->argf);
+	(*p->endline)(p);
+
+	p->ps->flags &= ~PS_MARGINS;
+
+	assert(0 == p->ps->flags);
+	assert(p->ps->psmarg);
+	assert('\0' != p->ps->psmarg[0]);
+
+	/*
+	 * Print header and initialise page state.  Following this,
+	 * stuff gets printed to the screen, so make sure we're sane.
+	 */
+
+	if (TERMTYPE_PS == p->type) {
+		ps_printf(p, "%%!PS-Adobe-3.0\n");
+		ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
+		ps_printf(p, "%%%%Orientation: Portrait\n");
+		ps_printf(p, "%%%%Pages: (atend)\n");
+		ps_printf(p, "%%%%PageOrder: Ascend\n");
+		ps_printf(p, "%%%%DocumentMedia: "
+		    "Default %zu %zu 0 () ()\n",
+		    (size_t)AFM2PNT(p, p->ps->width),
+		    (size_t)AFM2PNT(p, p->ps->height));
+		ps_printf(p, "%%%%DocumentNeededResources: font");
+
+		for (i = 0; i < (int)TERMFONT__MAX; i++)
+			ps_printf(p, " %s", fonts[i].name);
+
+		ps_printf(p, "\n%%%%EndComments\n");
+	} else {
+		ps_printf(p, "%%PDF-1.1\n");
+		pdf_obj(p, 1);
+		ps_printf(p, "<<\n");
+		ps_printf(p, ">>\n");
+		ps_printf(p, "endobj\n");
+
+		for (i = 0; i < (int)TERMFONT__MAX; i++) {
+			pdf_obj(p, (size_t)i + 3);
+			ps_printf(p, "<<\n");
+			ps_printf(p, "/Type /Font\n");
+			ps_printf(p, "/Subtype /Type1\n");
+			ps_printf(p, "/Name /F%d\n", i);
+			ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
+			ps_printf(p, ">>\n");
+		}
+	}
+
+	p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
+	p->ps->pscol = p->ps->left;
+	p->ps->psrow = p->ps->top;
+	p->ps->flags |= PS_NEWPAGE;
+	ps_setfont(p, TERMFONT_NONE);
+}
+
+static void
+ps_pletter(struct termp *p, int c)
+{
+	int		 f;
+
+	/*
+	 * If we haven't opened a page context, then output that we're
+	 * in a new page and make sure the font is correctly set.
+	 */
+
+	if (PS_NEWPAGE & p->ps->flags) {
+		if (TERMTYPE_PS == p->type) {
+			ps_printf(p, "%%%%Page: %zu %zu\n",
+			    p->ps->pages + 1, p->ps->pages + 1);
+			ps_printf(p, "/%s %zu selectfont\n",
+			    fonts[(int)p->ps->lastf].name,
+			    p->ps->scale);
+		} else {
+			pdf_obj(p, p->ps->pdfbody +
+			    p->ps->pages * 4);
+			ps_printf(p, "<<\n");
+			ps_printf(p, "/Length %zu 0 R\n",
+			    p->ps->pdfbody + 1 + p->ps->pages * 4);
+			ps_printf(p, ">>\nstream\n");
+		}
+		p->ps->pdflastpg = p->ps->pdfbytes;
+		p->ps->flags &= ~PS_NEWPAGE;
+	}
+
+	/*
+	 * If we're not in a PostScript "word" context, then open one
+	 * now at the current cursor.
+	 */
+
+	if ( ! (PS_INLINE & p->ps->flags)) {
+		if (TERMTYPE_PS != p->type) {
+			ps_printf(p, "BT\n/F%d %zu Tf\n",
+			    (int)p->ps->lastf, p->ps->scale);
+			ps_printf(p, "%.3f %.3f Td\n(",
+			    AFM2PNT(p, p->ps->pscol),
+			    AFM2PNT(p, p->ps->psrow));
+		} else
+			ps_printf(p, "%.3f %.3f moveto\n(",
+			    AFM2PNT(p, p->ps->pscol),
+			    AFM2PNT(p, p->ps->psrow));
+		p->ps->flags |= PS_INLINE;
+	}
+
+	assert( ! (PS_NEWPAGE & p->ps->flags));
+
+	/*
+	 * We need to escape these characters as per the PostScript
+	 * specification.  We would also escape non-graphable characters
+	 * (like tabs), but none of them would get to this point and
+	 * it's superfluous to abort() on them.
+	 */
+
+	switch (c) {
+	case '(':
+	case ')':
+	case '\\':
+		ps_putchar(p, '\\');
+		break;
+	default:
+		break;
+	}
+
+	/* Write the character and adjust where we are on the page. */
+
+	f = (int)p->ps->lastf;
+
+	if (c <= 32 || c - 32 >= MAXCHAR)
+		c = 32;
+
+	ps_putchar(p, (char)c);
+	c -= 32;
+	p->ps->pscol += (size_t)fonts[f].gly[c].wx;
+}
+
+static void
+ps_pclose(struct termp *p)
+{
+
+	/*
+	 * Spit out that we're exiting a word context (this is a
+	 * "partial close" because we don't check the last-char buffer
+	 * or anything).
+	 */
+
+	if ( ! (PS_INLINE & p->ps->flags))
+		return;
+
+	if (TERMTYPE_PS != p->type) {
+		ps_printf(p, ") Tj\nET\n");
+	} else
+		ps_printf(p, ") show\n");
+
+	p->ps->flags &= ~PS_INLINE;
+}
+
+/* If we have a `last' char that wasn't printed yet, print it now. */
+static void
+ps_plast(struct termp *p)
+{
+	size_t	 wx;
+
+	if (p->ps->last == '\0')
+		return;
+
+	/* Check the font mode; open a new scope if it doesn't match. */
+
+	if (p->ps->nextf != p->ps->lastf) {
+		ps_pclose(p);
+		ps_setfont(p, p->ps->nextf);
+	}
+	p->ps->nextf = TERMFONT_NONE;
+
+	/*
+	 * For an overstrike, if a previous character
+	 * was wider, advance to center the new one.
+	 */
+
+	if (p->ps->pscolnext) {
+		wx = fonts[p->ps->lastf].gly[(int)p->ps->last-32].wx;
+		if (p->ps->pscol + wx < p->ps->pscolnext)
+			p->ps->pscol = (p->ps->pscol +
+			    p->ps->pscolnext - wx) / 2;
+	}
+
+	ps_pletter(p, p->ps->last);
+	p->ps->last = '\0';
+
+	/*
+	 * For an overstrike, if a previous character
+	 * was wider, advance to the end of the old one.
+	 */
+
+	if (p->ps->pscol < p->ps->pscolnext) {
+		ps_pclose(p);
+		p->ps->pscol = p->ps->pscolnext;
+	}
+}
+
+static void
+ps_letter(struct termp *p, int arg)
+{
+	size_t		savecol;
+	char		c;
+
+	c = arg >= 128 || arg <= 0 ? '?' : arg;
+
+	/*
+	 * When receiving a backspace, merely flag it.
+	 * We don't know yet whether it is
+	 * a font instruction or an overstrike.
+	 */
+
+	if (c == '\b') {
+		assert(p->ps->last != '\0');
+		assert( ! (p->ps->flags & PS_BACKSP));
+		p->ps->flags |= PS_BACKSP;
+		return;
+	}
+
+	/*
+	 * Decode font instructions.
+	 */
+
+	if (p->ps->flags & PS_BACKSP) {
+		if (p->ps->last == '_') {
+			switch (p->ps->nextf) {
+			case TERMFONT_BI:
+				break;
+			case TERMFONT_BOLD:
+				p->ps->nextf = TERMFONT_BI;
+				break;
+			default:
+				p->ps->nextf = TERMFONT_UNDER;
+			}
+			p->ps->last = c;
+			p->ps->flags &= ~PS_BACKSP;
+			return;
+		}
+		if (p->ps->last == c) {
+			switch (p->ps->nextf) {
+			case TERMFONT_BI:
+				break;
+			case TERMFONT_UNDER:
+				p->ps->nextf = TERMFONT_BI;
+				break;
+			default:
+				p->ps->nextf = TERMFONT_BOLD;
+			}
+			p->ps->flags &= ~PS_BACKSP;
+			return;
+		}
+
+		/*
+		 * This is not a font instruction, but rather
+		 * the next character.  Prepare for overstrike.
+		 */
+
+		savecol = p->ps->pscol;
+	} else
+		savecol = SIZE_MAX;
+
+	/*
+	 * We found the next character, so the font instructions
+	 * for the previous one are complete.
+	 * Use them and print it.
+	 */
+
+	ps_plast(p);
+
+	/*
+	 * Do not print the current character yet because font
+	 * instructions might follow; only remember the character.
+	 * It will get printed later from ps_plast().
+	 */
+
+	p->ps->last = c;
+
+	/*
+	 * For an overstrike, back up to the previous position.
+	 * If the previous character is wider than any it overstrikes,
+	 * remember the current position, because it might also be
+	 * wider than all that will overstrike it.
+	 */
+
+	if (savecol != SIZE_MAX) {
+		if (p->ps->pscolnext < p->ps->pscol)
+			p->ps->pscolnext = p->ps->pscol;
+		ps_pclose(p);
+		p->ps->pscol = savecol;
+		p->ps->flags &= ~PS_BACKSP;
+	} else
+		p->ps->pscolnext = 0;
+}
+
+static void
+ps_advance(struct termp *p, size_t len)
+{
+
+	/*
+	 * Advance some spaces.  This can probably be made smarter,
+	 * i.e., to have multiple space-separated words in the same
+	 * scope, but this is easier:  just close out the current scope
+	 * and readjust our column settings.
+	 */
+
+	ps_plast(p);
+	ps_pclose(p);
+	p->ps->pscol += len;
+}
+
+static void
+ps_endline(struct termp *p)
+{
+
+	/* Close out any scopes we have open: we're at eoln. */
+
+	ps_plast(p);
+	ps_pclose(p);
+
+	/*
+	 * If we're in the margin, don't try to recalculate our current
+	 * row.  XXX: if the column tries to be fancy with multiple
+	 * lines, we'll do nasty stuff.
+	 */
+
+	if (PS_MARGINS & p->ps->flags)
+		return;
+
+	/* Left-justify. */
+
+	p->ps->pscol = p->ps->left;
+
+	/* If we haven't printed anything, return. */
+
+	if (PS_NEWPAGE & p->ps->flags)
+		return;
+
+	/*
+	 * Put us down a line.  If we're at the page bottom, spit out a
+	 * showpage and restart our row.
+	 */
+
+	if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
+		p->ps->psrow -= p->ps->lineheight;
+		return;
+	}
+
+	ps_closepage(p);
+
+	p->tcol->offset -= p->ti;
+	p->ti = 0;
+}
+
+static void
+ps_setfont(struct termp *p, enum termfont f)
+{
+
+	assert(f < TERMFONT__MAX);
+	p->ps->lastf = f;
+
+	/*
+	 * If we're still at the top of the page, let the font-setting
+	 * be delayed until we actually have stuff to print.
+	 */
+
+	if (PS_NEWPAGE & p->ps->flags)
+		return;
+
+	if (TERMTYPE_PS == p->type)
+		ps_printf(p, "/%s %zu selectfont\n",
+		    fonts[(int)f].name, p->ps->scale);
+	else
+		ps_printf(p, "/F%d %zu Tf\n",
+		    (int)f, p->ps->scale);
+}
+
+static size_t
+ps_width(const struct termp *p, int c)
+{
+
+	if (c <= 32 || c - 32 >= MAXCHAR)
+		c = 0;
+	else
+		c -= 32;
+
+	return (size_t)fonts[(int)TERMFONT_NONE].gly[c].wx;
+}
+
+static int
+ps_hspan(const struct termp *p, const struct roffsu *su)
+{
+	double		 r;
+
+	/*
+	 * All of these measurements are derived by converting from the
+	 * native measurement to AFM units.
+	 */
+	switch (su->unit) {
+	case SCALE_BU:
+		/*
+		 * Traditionally, the default unit is fixed to the
+		 * output media.  So this would refer to the point.  In
+		 * mandoc(1), however, we stick to the default terminal
+		 * scaling unit so that output is the same regardless
+		 * the media.
+		 */
+		r = PNT2AFM(p, su->scale * 72.0 / 240.0);
+		break;
+	case SCALE_CM:
+		r = PNT2AFM(p, su->scale * 72.0 / 2.54);
+		break;
+	case SCALE_EM:
+		r = su->scale *
+		    fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
+		break;
+	case SCALE_EN:
+		r = su->scale *
+		    fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
+		break;
+	case SCALE_IN:
+		r = PNT2AFM(p, su->scale * 72.0);
+		break;
+	case SCALE_MM:
+		r = su->scale *
+		    fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
+		break;
+	case SCALE_PC:
+		r = PNT2AFM(p, su->scale * 12.0);
+		break;
+	case SCALE_PT:
+		r = PNT2AFM(p, su->scale * 1.0);
+		break;
+	case SCALE_VS:
+		r = su->scale * p->ps->lineheight;
+		break;
+	default:
+		r = su->scale;
+		break;
+	}
+
+	return r * 24.0;
+}
+
+static void
+ps_growbuf(struct termp *p, size_t sz)
+{
+	if (p->ps->psmargcur + sz <= p->ps->psmargsz)
+		return;
+
+	if (sz < PS_BUFSLOP)
+		sz = PS_BUFSLOP;
+
+	p->ps->psmargsz += sz;
+	p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
+}

Added: vendor/mandoc/dist/term_tab.c
===================================================================
--- vendor/mandoc/dist/term_tab.c	                        (rev 0)
+++ vendor/mandoc/dist/term_tab.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,128 @@
+/*	$OpenBSD: term.c,v 1.119 2017/01/08 18:08:44 schwarze Exp $ */
+/*
+ * Copyright (c) 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <stddef.h>
+
+#include "mandoc_aux.h"
+#include "out.h"
+#include "term.h"
+
+struct tablist {
+	size_t	*t;	/* Allocated array of tab positions. */
+	size_t	 s;	/* Allocated number of positions. */
+	size_t	 n;	/* Currently used number of positions. */
+};
+
+static struct {
+	struct tablist	 a;	/* All tab positions for lookup. */
+	struct tablist	 p;	/* Periodic tab positions to add. */
+	size_t		 d;	/* Default tab width in units of n. */
+} tabs;
+
+
+void
+term_tab_set(const struct termp *p, const char *arg)
+{
+	static int	 recording_period;
+
+	struct roffsu	 su;
+	struct tablist	*tl;
+	size_t		 pos;
+	int		 add;
+
+	/* Special arguments: clear all tabs or switch lists. */
+
+	if (arg == NULL) {
+		tabs.a.n = tabs.p.n = 0;
+		recording_period = 0;
+		if (tabs.d == 0) {
+			a2roffsu(".8i", &su, SCALE_IN);
+			tabs.d = term_hen(p, &su);
+		}
+		return;
+	}
+	if (arg[0] == 'T' && arg[1] == '\0') {
+		recording_period = 1;
+		return;
+	}
+
+	/* Parse the sign, the number, and the unit. */
+
+	if (*arg == '+') {
+		add = 1;
+		arg++;
+	} else
+		add = 0;
+	if (a2roffsu(arg, &su, SCALE_EM) == NULL)
+		return;
+
+	/* Select the list, and extend it if it is full. */
+
+	tl = recording_period ? &tabs.p : &tabs.a;
+	if (tl->n >= tl->s) {
+		tl->s += 8;
+		tl->t = mandoc_reallocarray(tl->t, tl->s, sizeof(*tl->t));
+	}
+
+	/* Append the new position. */
+
+	pos = term_hen(p, &su);
+	tl->t[tl->n] = pos;
+	if (add && tl->n)
+		tl->t[tl->n] += tl->t[tl->n - 1];
+	tl->n++;
+}
+
+/*
+ * Simplified version without a parser,
+ * never incremental, never periodic, for use by tbl(7).
+ */
+void
+term_tab_iset(size_t inc)
+{
+	if (tabs.a.n >= tabs.a.s) {
+		tabs.a.s += 8;
+		tabs.a.t = mandoc_reallocarray(tabs.a.t, tabs.a.s,
+		    sizeof(*tabs.a.t));
+	}
+	tabs.a.t[tabs.a.n++] = inc;
+}
+
+size_t
+term_tab_next(size_t prev)
+{
+	size_t	 i, j;
+
+	for (i = 0;; i++) {
+		if (i == tabs.a.n) {
+			if (tabs.p.n == 0)
+				return prev;
+			tabs.a.n += tabs.p.n;
+			if (tabs.a.s < tabs.a.n) {
+				tabs.a.s = tabs.a.n;
+				tabs.a.t = mandoc_reallocarray(tabs.a.t,
+				    tabs.a.s, sizeof(*tabs.a.t));
+			}
+			for (j = 0; j < tabs.p.n; j++)
+				tabs.a.t[i + j] = tabs.p.t[j] +
+				    (i ? tabs.a.t[i - 1] : 0);
+		}
+		if (prev < tabs.a.t[i])
+			return tabs.a.t[i];
+	}
+}

Added: vendor/mandoc/dist/test-EFTYPE.c
===================================================================
--- vendor/mandoc/dist/test-EFTYPE.c	                        (rev 0)
+++ vendor/mandoc/dist/test-EFTYPE.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+#include <errno.h>
+
+int
+main(void)
+{
+	return !EFTYPE;
+}

Added: vendor/mandoc/dist/test-O_DIRECTORY.c
===================================================================
--- vendor/mandoc/dist/test-O_DIRECTORY.c	                        (rev 0)
+++ vendor/mandoc/dist/test-O_DIRECTORY.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+#include <fcntl.h>
+
+int
+main(void)
+{
+	return open(".", O_RDONLY | O_DIRECTORY) == -1;
+}

Added: vendor/mandoc/dist/test-PATH_MAX.c
===================================================================
--- vendor/mandoc/dist/test-PATH_MAX.c	                        (rev 0)
+++ vendor/mandoc/dist/test-PATH_MAX.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,30 @@
+/*
+ * POSIX allows PATH_MAX to not be defined, see
+ * http://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html;
+ * the GNU Hurd is an example of a system not having it.
+ *
+ * Arguably, it would be better to test sysconf(_SC_PATH_MAX),
+ * but since the individual *.c files include "config.h" before
+ * <limits.h>, overriding an excessive value of PATH_MAX from
+ * "config.h" is impossible anyway, so for now, the simplest
+ * fix is to provide a value only on systems not having any.
+ * So far, we encountered no system defining PATH_MAX to an
+ * impractically large value, even though POSIX explicitly
+ * allows that.
+ *
+ * The real fix would be to replace all static buffers of size
+ * PATH_MAX by dynamically allocated buffers.  But that is
+ * somewhat intrusive because it touches several files and
+ * because it requires changing struct mlink in mandocdb.c.
+ * So i'm postponing that for now.
+ */
+
+#include <limits.h>
+#include <stdio.h>
+
+int
+main(void)
+{
+	printf("PATH_MAX is defined to be %ld\n", (long)PATH_MAX);
+	return 0;
+}

Added: vendor/mandoc/dist/test-be32toh.c
===================================================================
--- vendor/mandoc/dist/test-be32toh.c	                        (rev 0)
+++ vendor/mandoc/dist/test-be32toh.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+#ifdef SYS_ENDIAN
+#include <sys/endian.h>
+#else
+#include <endian.h>
+#endif
+
+int
+main(void)
+{
+	return htobe32(be32toh(0x3a7d0cdb)) != 0x3a7d0cdb;
+}

Added: vendor/mandoc/dist/test-cmsg.c
===================================================================
--- vendor/mandoc/dist/test-cmsg.c	                        (rev 0)
+++ vendor/mandoc/dist/test-cmsg.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+#include <stddef.h>
+#include <sys/socket.h>
+
+int
+main(void)
+{
+	struct msghdr	 msg;
+
+	msg.msg_control = NULL;
+	msg.msg_controllen = 0;
+
+	return CMSG_FIRSTHDR(&msg) != NULL;
+}

Added: vendor/mandoc/dist/test-dirent-namlen.c
===================================================================
--- vendor/mandoc/dist/test-dirent-namlen.c	                        (rev 0)
+++ vendor/mandoc/dist/test-dirent-namlen.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+#include <sys/types.h>
+#include <dirent.h>
+
+int
+main(void)
+{
+	struct dirent	 entry;
+
+	return sizeof(entry.d_namlen) == 0;
+}

Added: vendor/mandoc/dist/test-err.c
===================================================================
--- vendor/mandoc/dist/test-err.c	                        (rev 0)
+++ vendor/mandoc/dist/test-err.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,28 @@
+/*	$Id: test-err.c,v 1.1 2015/10/11 21:12:55 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <err.h>
+
+int
+main(void)
+{
+	warnx("%d. warnx", 1);
+	warn("%d. warn", 2);
+	err(0, "%d. err", 3);
+	/* NOTREACHED */
+	return 1;
+}

Added: vendor/mandoc/dist/test-fts.c
===================================================================
--- vendor/mandoc/dist/test-fts.c	                        (rev 0)
+++ vendor/mandoc/dist/test-fts.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,59 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fts.h>
+#include <stdio.h>
+#include <string.h>
+
+#ifdef FTS_COMPARE_CONST
+int fts_compare(const FTSENT *const *, const FTSENT *const *);
+#else
+int fts_compare(const FTSENT **, const FTSENT **);
+#endif
+
+int
+main(void)
+{
+	const char	*argv[2];
+	FTS		*ftsp;
+	FTSENT		*entry;
+
+	argv[0] = ".";
+	argv[1] = (char *)NULL;
+
+	ftsp = fts_open((char * const *)argv,
+	    FTS_PHYSICAL | FTS_NOCHDIR, fts_compare);
+
+	if (ftsp == NULL) {
+		perror("fts_open");
+		return 1;
+	}
+
+	entry = fts_read(ftsp);
+
+	if (entry == NULL) {
+		perror("fts_read");
+		return 1;
+	}
+
+	if (fts_set(ftsp, entry, FTS_SKIP) != 0) {
+		perror("fts_set");
+		return 1;
+	}
+
+	if (fts_close(ftsp) != 0) {
+		perror("fts_close");
+		return 1;
+	}
+
+	return 0;
+}
+
+int
+#ifdef FTS_COMPARE_CONST
+fts_compare(const FTSENT *const *a, const FTSENT *const *b)
+#else
+fts_compare(const FTSENT **a, const FTSENT **b)
+#endif
+{
+	return strcmp((*a)->fts_name, (*b)->fts_name);
+}

Added: vendor/mandoc/dist/test-getline.c
===================================================================
--- vendor/mandoc/dist/test-getline.c	                        (rev 0)
+++ vendor/mandoc/dist/test-getline.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+#include <sys/types.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+	char	*line = NULL;
+	size_t	 linesz = 0;
+
+	fclose(stdin);
+	return getline(&line, &linesz, stdin) != -1;
+}

Added: vendor/mandoc/dist/test-getsubopt.c
===================================================================
--- vendor/mandoc/dist/test-getsubopt.c	                        (rev 0)
+++ vendor/mandoc/dist/test-getsubopt.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,34 @@
+/*	$Id: test-getsubopt.c,v 1.4 2015/10/06 18:32:20 schwarze Exp $	*/
+/*
+ * Copyright (c) 2011 Kristaps Dzonsons <kristaps at bsd.lv>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if defined(__linux__) || defined(__MINT__)
+#define _GNU_SOURCE /* getsubopt() */
+#endif
+
+#include <stdlib.h>
+
+int
+main(void)
+{
+	char buf[] = "k=v";
+	char *options = buf;
+	char token0[] = "k";
+	char *const tokens[] = { token0, NULL };
+	char *value = NULL;
+	return ! (getsubopt(&options, tokens, &value) == 0
+	    && value == buf+2 && options == buf+3);
+}

Added: vendor/mandoc/dist/test-isblank.c
===================================================================
--- vendor/mandoc/dist/test-isblank.c	                        (rev 0)
+++ vendor/mandoc/dist/test-isblank.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+#include <ctype.h>
+
+int
+main(void)
+{
+	return !isblank(' ') || !isblank('\t') || isblank('_');
+}

Added: vendor/mandoc/dist/test-mkdtemp.c
===================================================================
--- vendor/mandoc/dist/test-mkdtemp.c	                        (rev 0)
+++ vendor/mandoc/dist/test-mkdtemp.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,12 @@
+#include <stdlib.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+	char	dirname[] = "/tmp/temp.XXXXXX";
+
+	if (mkdtemp(dirname) != dirname)
+		return 1;
+	return rmdir(dirname) == -1;
+}

Added: vendor/mandoc/dist/test-nanosleep.c
===================================================================
--- vendor/mandoc/dist/test-nanosleep.c	                        (rev 0)
+++ vendor/mandoc/dist/test-nanosleep.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <time.h>
+
+int
+main(void)
+{
+	struct timespec	 timeout;
+
+	timeout.tv_sec = 0;
+	timeout.tv_nsec = 100000000;	/* 0.1 seconds */
+	
+	if (nanosleep(&timeout, NULL)) {
+		perror("nanosleep");
+		return 1;
+	}
+	return 0;
+}

Added: vendor/mandoc/dist/test-ntohl.c
===================================================================
--- vendor/mandoc/dist/test-ntohl.c	                        (rev 0)
+++ vendor/mandoc/dist/test-ntohl.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+#include <arpa/inet.h>
+
+int
+main(void)
+{
+	return htonl(ntohl(0x3a7d0cdb)) != 0x3a7d0cdb;
+}

Added: vendor/mandoc/dist/test-ohash.c
===================================================================
--- vendor/mandoc/dist/test-ohash.c	                        (rev 0)
+++ vendor/mandoc/dist/test-ohash.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,39 @@
+#include <stdint.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <ohash.h>
+
+static void	*xmalloc(size_t, void *);
+static void	*xcalloc(size_t, size_t, void *);
+static void	 xfree(void *, void *);
+
+
+static void *
+xmalloc(size_t sz, void *arg) {
+	return calloc(1,sz);
+}
+
+static void *
+xcalloc(size_t nmemb, size_t sz, void *arg)
+{
+	return calloc(nmemb,sz);
+}
+
+static void
+xfree(void *p, void *arg)
+{
+	free(p);
+}
+
+int
+main(void)
+{
+	struct ohash h;
+	struct ohash_info i;
+	i.alloc = xmalloc;
+	i.calloc = xcalloc;
+	i.free = xfree;
+	ohash_init(&h, 2, &i);
+	ohash_delete(&h);
+	return 0;
+}

Added: vendor/mandoc/dist/test-pledge.c
===================================================================
--- vendor/mandoc/dist/test-pledge.c	                        (rev 0)
+++ vendor/mandoc/dist/test-pledge.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+#include <unistd.h>
+
+int
+main(void)
+{
+	return !!pledge("stdio", NULL);
+}

Added: vendor/mandoc/dist/test-progname.c
===================================================================
--- vendor/mandoc/dist/test-progname.c	                        (rev 0)
+++ vendor/mandoc/dist/test-progname.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+#include <stdlib.h>
+
+int
+main(void)
+{
+	const char * progname;
+
+	progname = getprogname();
+	return progname == NULL;
+}

Added: vendor/mandoc/dist/test-reallocarray.c
===================================================================
--- vendor/mandoc/dist/test-reallocarray.c	                        (rev 0)
+++ vendor/mandoc/dist/test-reallocarray.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,7 @@
+#include <stdlib.h>
+
+int
+main(void)
+{
+	return !reallocarray(NULL, 2, 2);
+}

Added: vendor/mandoc/dist/test-recallocarray.c
===================================================================
--- vendor/mandoc/dist/test-recallocarray.c	                        (rev 0)
+++ vendor/mandoc/dist/test-recallocarray.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,11 @@
+#include <stdlib.h>
+
+int
+main(void)
+{
+	void	*p;
+
+	if ((p = calloc(2, 2)) == NULL)
+		return 1;
+	return !recallocarray(p, 2, 3, 2);
+}

Added: vendor/mandoc/dist/test-recvmsg.c
===================================================================
--- vendor/mandoc/dist/test-recvmsg.c	                        (rev 0)
+++ vendor/mandoc/dist/test-recvmsg.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,8 @@
+#include <sys/socket.h>
+#include <stddef.h>
+
+int
+main(void)
+{
+	return recvmsg(-1, NULL, 0) != -1;
+}

Added: vendor/mandoc/dist/test-rewb-bsd.c
===================================================================
--- vendor/mandoc/dist/test-rewb-bsd.c	                        (rev 0)
+++ vendor/mandoc/dist/test-rewb-bsd.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+#include <sys/types.h>
+#include <stddef.h>
+#include <regex.h>
+
+int
+main(void)
+{
+	regex_t	 re;
+
+	if (regcomp(&re, "[[:<:]]word[[:>:]]", REG_EXTENDED | REG_NOSUB))
+		return 1;
+	if (regexec(&re, "the word is here", 0, NULL, 0))
+		return 2;
+	if (regexec(&re, "same word", 0, NULL, 0))
+		return 3;
+	if (regexec(&re, "word again", 0, NULL, 0))
+		return 4;
+	if (regexec(&re, "word", 0, NULL, 0))
+		return 5;
+	if (regexec(&re, "wordy", 0, NULL, 0) != REG_NOMATCH)
+		return 6;
+	if (regexec(&re, "sword", 0, NULL, 0) != REG_NOMATCH)
+		return 7;
+	if (regexec(&re, "reworded", 0, NULL, 0) != REG_NOMATCH)
+		return 8;
+	return 0;
+}

Added: vendor/mandoc/dist/test-rewb-sysv.c
===================================================================
--- vendor/mandoc/dist/test-rewb-sysv.c	                        (rev 0)
+++ vendor/mandoc/dist/test-rewb-sysv.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,27 @@
+#include <sys/types.h>
+#include <stddef.h>
+#include <regex.h>
+
+int
+main(void)
+{
+	regex_t	 re;
+
+	if (regcomp(&re, "\\<word\\>", REG_EXTENDED | REG_NOSUB))
+		return 1;
+	if (regexec(&re, "the word is here", 0, NULL, 0))
+		return 2;
+	if (regexec(&re, "same word", 0, NULL, 0))
+		return 3;
+	if (regexec(&re, "word again", 0, NULL, 0))
+		return 4;
+	if (regexec(&re, "word", 0, NULL, 0))
+		return 5;
+	if (regexec(&re, "wordy", 0, NULL, 0) != REG_NOMATCH)
+		return 6;
+	if (regexec(&re, "sword", 0, NULL, 0) != REG_NOMATCH)
+		return 7;
+	if (regexec(&re, "reworded", 0, NULL, 0) != REG_NOMATCH)
+		return 8;
+	return 0;
+}

Added: vendor/mandoc/dist/test-sandbox_init.c
===================================================================
--- vendor/mandoc/dist/test-sandbox_init.c	                        (rev 0)
+++ vendor/mandoc/dist/test-sandbox_init.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+#include <sandbox.h>
+
+int
+main(void)
+{
+	char	*ep;
+	int	 rc;
+
+	rc = sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, &ep);
+	if (-1 == rc)
+		sandbox_free_error(ep);
+	return(-1 == rc);
+}

Added: vendor/mandoc/dist/test-strcasestr.c
===================================================================
--- vendor/mandoc/dist/test-strcasestr.c	                        (rev 0)
+++ vendor/mandoc/dist/test-strcasestr.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,13 @@
+#if defined(__linux__) || defined(__MINT__)
+# define _GNU_SOURCE /* strcasestr() */
+#endif
+
+#include <string.h>
+
+int
+main(void)
+{
+	const char *big = "BigString";
+	char *cp = strcasestr(big, "Gst");
+	return cp != big + 2;
+}

Added: vendor/mandoc/dist/test-stringlist.c
===================================================================
--- vendor/mandoc/dist/test-stringlist.c	                        (rev 0)
+++ vendor/mandoc/dist/test-stringlist.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,37 @@
+/*	$Id: test-stringlist.c,v 1.2 2015/10/06 18:32:20 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stringlist.h>
+
+int
+main(void)
+{
+	StringList	*sl;
+	char		 teststr[] = "test";
+
+	if ((sl = sl_init()) == NULL)
+		return 1;
+	if (sl_add(sl, teststr))
+		return 2;
+	if (sl->sl_cur != 1)
+		return 3;
+	if (sl->sl_str[0] != teststr)
+		return 4;
+
+	sl_free(sl, 0);
+	return 0;
+}

Added: vendor/mandoc/dist/test-strlcat.c
===================================================================
--- vendor/mandoc/dist/test-strlcat.c	                        (rev 0)
+++ vendor/mandoc/dist/test-strlcat.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+#include <string.h>
+
+int
+main(void)
+{
+	char buf[3] = "a";
+	return ! (strlcat(buf, "b", sizeof(buf)) == 2 &&
+	    buf[0] == 'a' && buf[1] == 'b' && buf[2] == '\0');
+}

Added: vendor/mandoc/dist/test-strlcpy.c
===================================================================
--- vendor/mandoc/dist/test-strlcpy.c	                        (rev 0)
+++ vendor/mandoc/dist/test-strlcpy.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,9 @@
+#include <string.h>
+
+int
+main(void)
+{
+	char buf[2] = "";
+	return ! (strlcpy(buf, "a", sizeof(buf)) == 1 &&
+	    buf[0] == 'a' && buf[1] == '\0');
+}

Added: vendor/mandoc/dist/test-strptime.c
===================================================================
--- vendor/mandoc/dist/test-strptime.c	                        (rev 0)
+++ vendor/mandoc/dist/test-strptime.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,14 @@
+#if defined(__linux__) || defined(__MINT__)
+# define _GNU_SOURCE /* strptime() */
+#endif
+
+#include <time.h>
+
+int
+main(void)
+{
+	struct tm tm;
+	const char input[] = "2014-01-04";
+	return ! (strptime(input, "%Y-%m-%d", &tm) == input + 10 &&
+	    tm.tm_year == 114 && tm.tm_mon == 0 && tm.tm_mday == 4);
+}

Added: vendor/mandoc/dist/test-strsep.c
===================================================================
--- vendor/mandoc/dist/test-strsep.c	                        (rev 0)
+++ vendor/mandoc/dist/test-strsep.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,10 @@
+#include <string.h>
+
+int
+main(void)
+{
+	char buf[6] = "aybxc";
+	char *workp = buf;
+	char *retp = strsep(&workp, "xy");
+	return ! (retp == buf && buf[1] == '\0' && workp == buf + 2);
+}

Added: vendor/mandoc/dist/test-strtonum.c
===================================================================
--- vendor/mandoc/dist/test-strtonum.c	                        (rev 0)
+++ vendor/mandoc/dist/test-strtonum.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,42 @@
+/*	$Id: test-strtonum.c,v 1.2 2015/10/06 18:32:20 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdlib.h>
+
+int
+main(void)
+{
+	const char *errstr;
+
+	if (strtonum("1", 0, 2, &errstr) != 1)
+		return 1;
+	if (errstr != NULL)
+		return 2;
+	if (strtonum("1x", 0, 2, &errstr) != 0)
+		return 3;
+	if (errstr == NULL)
+		return 4;
+	if (strtonum("2", 0, 1, &errstr) != 0)
+		return 5;
+	if (errstr == NULL)
+		return 6;
+	if (strtonum("0", 1, 2, &errstr) != 0)
+		return 7;
+	if (errstr == NULL)
+		return 8;
+	return 0;
+}

Added: vendor/mandoc/dist/test-vasprintf.c
===================================================================
--- vendor/mandoc/dist/test-vasprintf.c	                        (rev 0)
+++ vendor/mandoc/dist/test-vasprintf.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,52 @@
+/*	$Id: test-vasprintf.c,v 1.4 2016/07/18 18:35:05 schwarze Exp $	*/
+/*
+ * Copyright (c) 2015 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if defined(__linux__) || defined(__MINT__)
+#define _GNU_SOURCE /* vasprintf() */
+#endif
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+static int	 testfunc(char **, const char *, ...);
+
+
+static int
+testfunc(char **ret, const char *format, ...)
+{
+	va_list	 ap;
+	int	 irc;
+
+	va_start(ap, format);
+	irc = vasprintf(ret, format, ap);
+	va_end(ap);
+
+	return irc;
+}
+
+int
+main(void)
+{
+	char	*ret;
+
+	if (testfunc(&ret, "%s.", "Text") != 5)
+		return 1;
+	if (strcmp(ret, "Text."))
+		return 2;
+	return 0;
+}

Added: vendor/mandoc/dist/test-wchar.c
===================================================================
--- vendor/mandoc/dist/test-wchar.c	                        (rev 0)
+++ vendor/mandoc/dist/test-wchar.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,63 @@
+/*	$Id: test-wchar.c,v 1.4 2016/07/31 09:29:13 schwarze Exp $	*/
+/*
+ * Copyright (c) 2014 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if defined(__linux__) || defined(__MINT__)
+#define _GNU_SOURCE /* wcwidth() */
+#endif
+
+#include <locale.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+	wchar_t	 wc;
+	int	 width;
+
+	if (setlocale(LC_ALL, "") == NULL) {
+		fputs("setlocale(LC_ALL, \"\") failed\n", stderr);
+		return 1;
+	}
+
+	if (setlocale(LC_CTYPE, UTF8_LOCALE) == NULL) {
+		fprintf(stderr, "setlocale(LC_CTYPE, \"%s\") failed\n",
+		    UTF8_LOCALE);
+		return 1;
+	}
+
+	if (sizeof(wchar_t) < 4) {
+		fprintf(stderr, "wchar_t is only %zu bytes\n",
+		    sizeof(wchar_t));
+		return 1;
+	}
+
+	if ((width = wcwidth(L' ')) != 1) {
+		fprintf(stderr, "wcwidth(L' ') returned %d\n", width);
+		return 1;
+	}
+
+	dup2(STDERR_FILENO, STDOUT_FILENO);
+	wc = L'*';
+	if (putwchar(wc) != (wint_t)wc) {
+		fputs("bad putwchar return value\n", stderr);
+		return 1;
+	}
+
+	return 0;
+}

Added: vendor/mandoc/dist/tree.c
===================================================================
--- vendor/mandoc/dist/tree.c	                        (rev 0)
+++ vendor/mandoc/dist/tree.c	2018-01-19 04:36:23 UTC (rev 9735)
@@ -0,0 +1,403 @@
+/*	$Id: tree.c,v 1.77 2017/07/08 14:51:05 schwarze Exp $ */
+/*
+ * Copyright (c) 2008, 2009, 2011, 2014 Kristaps Dzonsons <kristaps at bsd.lv>
+ * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze at openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "main.h"
+
+static	void	print_box(const struct eqn_box *, int);
+static	void	print_man(const struct roff_node *, int);
+static	void	print_meta(const struct roff_meta *);
+static	void	print_mdoc(const struct roff_node *, int);
+static	void	print_span(const struct tbl_span *, int);
+
+
+void
+tree_mdoc(void *arg, const struct roff_man *mdoc)
+{
+	print_meta(&mdoc->meta);
+	putchar('\n');
+	print_mdoc(mdoc->first->child, 0);
+}
+
+void
+tree_man(void *arg, const struct roff_man *man)
+{
+	print_meta(&man->meta);
+	if (man->meta.hasbody == 0)
+		puts("body  = empty");
+	putchar('\n');
+	print_man(man->first->child, 0);
+}
+
+static void
+print_meta(const struct roff_meta *meta)
+{
+	if (meta->title != NULL)
+		printf("title = \"%s\"\n", meta->title);
+	if (meta->name != NULL)
+		printf("name  = \"%s\"\n", meta->name);
+	if (meta->msec != NULL)
+		printf("sec   = \"%s\"\n", meta->msec);
+	if (meta->vol != NULL)
+		printf("vol   = \"%s\"\n", meta->vol);
+	if (meta->arch != NULL)
+		printf("arch  = \"%s\"\n", meta->arch);
+	if (meta->os != NULL)
+		printf("os    = \"%s\"\n", meta->os);
+	if (meta->date != NULL)
+		printf("date  = \"%s\"\n", meta->date);
+}
+
+static void
+print_mdoc(const struct roff_node *n, int indent)
+{
+	const char	 *p, *t;
+	int		  i, j;
+	size_t		  argc;
+	struct mdoc_argv *argv;
+
+	if (n == NULL)
+		return;
+
+	argv = NULL;
+	argc = 0;
+	t = p = NULL;
+
+	switch (n->type) {
+	case ROFFT_ROOT:
+		t = "root";
+		break;
+	case ROFFT_BLOCK:
+		t = "block";
+		break;
+	case ROFFT_HEAD:
+		t = "head";
+		break;
+	case ROFFT_BODY:
+		if (n->end)
+			t = "body-end";
+		else
+			t = "body";
+		break;
+	case ROFFT_TAIL:
+		t = "tail";
+		break;
+	case ROFFT_ELEM:
+		t = "elem";
+		break;
+	case ROFFT_TEXT:
+		t = "text";
+		break;
+	case ROFFT_TBL:
+		break;
+	case ROFFT_EQN:
+		t = "eqn";
+		break;
+	default:
+		abort();
+	}
+
+	switch (n->type) {
+	case ROFFT_TEXT:
+		p = n->string;
+		break;
+	case ROFFT_BODY:
+		p = roff_name[n->tok];
+		break;
+	case ROFFT_HEAD:
+		p = roff_name[n->tok];
+		break;
+	case ROFFT_TAIL:
+		p = roff_name[n->tok];
+		break;
+	case ROFFT_ELEM:
+		p = roff_name[n->tok];
+		if (n->args) {
+			argv = n->args->argv;
+			argc = n->args->argc;
+		}
+		break;
+	case ROFFT_BLOCK:
+		p = roff_name[n->tok];
+		if (n->args) {
+			argv = n->args->argv;
+			argc = n->args->argc;
+		}
+		break;
+	case ROFFT_TBL:
+		break;
+	case ROFFT_EQN:
+		p = "EQ";
+		break;
+	case ROFFT_ROOT:
+		p = "root";
+		break;
+	default:
+		abort();
+	}
+
+	if (n->span) {
+		assert(NULL == p && NULL == t);
+		print_span(n->span, indent);
+	} else {
+		for (i = 0; i < indent; i++)
+			putchar(' ');
+
+		printf("%s (%s)", p, t);
+
+		for (i = 0; i < (int)argc; i++) {
+			printf(" -%s", mdoc_argnames[argv[i].arg]);
+			if (argv[i].sz > 0)
+				printf(" [");
+			for (j = 0; j < (int)argv[i].sz; j++)
+				printf(" [%s]", argv[i].value[j]);
+			if (argv[i].sz > 0)
+				printf(" ]");
+		}
+
+		putchar(' ');
+		if (NODE_DELIMO & n->flags)
+			putchar('(');
+		if (NODE_LINE & n->flags)
+			putchar('*');
+		printf("%d:%d", n->line, n->pos + 1);
+		if (NODE_DELIMC & n->flags)
+			putchar(')');
+		if (NODE_EOS & n->flags)
+			putchar('.');
+		if (NODE_BROKEN & n->flags)
+			printf(" BROKEN");
+		if (NODE_NOSRC & n->flags)
+			printf(" NOSRC");
+		if (NODE_NOPRT & n->flags)
+			printf(" NOPRT");
+		putchar('\n');
+	}
+
+	if (n->eqn)
+		print_box(n->eqn->first, indent + 4);
+	if (n->child)
+		print_mdoc(n->child, indent +
+		    (n->type == ROFFT_BLOCK ? 2 : 4));
+	if (n->next)
+		print_mdoc(n->next, indent);
+}
+
+static void
+print_man(const struct roff_node *n, int indent)
+{
+	const char	 *p, *t;
+	int		  i;
+
+	if (n == NULL)
+		return;
+
+	t = p = NULL;
+
+	switch (n->type) {
+	case ROFFT_ROOT:
+		t = "root";
+		break;
+	case ROFFT_ELEM:
+		t = "elem";
+		break;
+	case ROFFT_TEXT:
+		t = "text";
+		break;
+	case ROFFT_BLOCK:
+		t = "block";
+		break;
+	case ROFFT_HEAD:
+		t = "head";
+		break;
+	case ROFFT_BODY:
+		t = "body";
+		break;
+	case ROFFT_TBL:
+		break;
+	case ROFFT_EQN:
+		t = "eqn";
+		break;
+	default:
+		abort();
+	}
+
+	switch (n->type) {
+	case ROFFT_TEXT:
+		p = n->string;
+		break;
+	case ROFFT_ELEM:
+	case ROFFT_BLOCK:
+	case ROFFT_HEAD:
+	case ROFFT_BODY:
+		p = roff_name[n->tok];
+		break;
+	case ROFFT_ROOT:
+		p = "root";
+		break;
+	case ROFFT_TBL:
+		break;
+	case ROFFT_EQN:
+		p = "EQ";
+		break;
+	default:
+		abort();
+	}
+
+	if (n->span) {
+		assert(NULL == p && NULL == t);
+		print_span(n->span, indent);
+	} else {
+		for (i = 0; i < indent; i++)
+			putchar(' ');
+		printf("%s (%s) ", p, t);
+		if (NODE_LINE & n->flags)
+			putchar('*');
+		printf("%d:%d", n->line, n->pos + 1);
+		if (NODE_EOS & n->flags)
+			putchar('.');
+		putchar('\n');
+	}
+
+	if (n->eqn)
+		print_box(n->eqn->first, indent + 4);
+	if (n->child)
+		print_man(n->child, indent +
+		    (n->type == ROFFT_BLOCK ? 2 : 4));
+	if (n->next)
+		print_man(n->next, indent);
+}
+
+static void
+print_box(const struct eqn_box *ep, int indent)
+{
+	int		 i;
+	const char	*t;
+
+	static const char *posnames[] = {
+	    NULL, "sup", "subsup", "sub",
+	    "to", "from", "fromto",
+	    "over", "sqrt", NULL };
+
+	if (NULL == ep)
+		return;
+	for (i = 0; i < indent; i++)
+		putchar(' ');
+
+	t = NULL;
+	switch (ep->type) {
+	case EQN_LIST:
+		t = "eqn-list";
+		break;
+	case EQN_SUBEXPR:
+		t = "eqn-expr";
+		break;
+	case EQN_TEXT:
+		t = "eqn-text";
+		break;
+	case EQN_PILE:
+		t = "eqn-pile";
+		break;
+	case EQN_MATRIX:
+		t = "eqn-matrix";
+		break;
+	}
+
+	fputs(t, stdout);
+	if (ep->pos)
+		printf(" pos=%s", posnames[ep->pos]);
+	if (ep->left)
+		printf(" left=\"%s\"", ep->left);
+	if (ep->right)
+		printf(" right=\"%s\"", ep->right);
+	if (ep->top)
+		printf(" top=\"%s\"", ep->top);
+	if (ep->bottom)
+		printf(" bottom=\"%s\"", ep->bottom);
+	if (ep->text)
+		printf(" text=\"%s\"", ep->text);
+	if (ep->font)
+		printf(" font=%d", ep->font);
+	if (ep->size != EQN_DEFSIZE)
+		printf(" size=%d", ep->size);
+	if (ep->expectargs != UINT_MAX && ep->expectargs != ep->args)
+		printf(" badargs=%zu(%zu)", ep->args, ep->expectargs);
+	else if (ep->args)
+		printf(" args=%zu", ep->args);
+	putchar('\n');
+
+	print_box(ep->first, indent + 4);
+	print_box(ep->next, indent);
+}
+
+static void
+print_span(const struct tbl_span *sp, int indent)
+{
+	const struct tbl_dat *dp;
+	int		 i;
+
+	for (i = 0; i < indent; i++)
+		putchar(' ');
+
+	switch (sp->pos) {
+	case TBL_SPAN_HORIZ:
+		putchar('-');
+		return;
+	case TBL_SPAN_DHORIZ:
+		putchar('=');
+		return;
+	default:
+		break;
+	}
+
+	for (dp = sp->first; dp; dp = dp->next) {
+		switch (dp->pos) {
+		case TBL_DATA_HORIZ:
+		case TBL_DATA_NHORIZ:
+			putchar('-');
+			continue;
+		case TBL_DATA_DHORIZ:
+		case TBL_DATA_NDHORIZ:
+			putchar('=');
+			continue;
+		default:
+			break;
+		}
+		printf("[\"%s\"", dp->string ? dp->string : "");
+		if (dp->spans)
+			printf("(%d)", dp->spans);
+		if (NULL == dp->layout)
+			putchar('*');
+		putchar(']');
+		putchar(' ');
+	}
+
+	printf("(tbl) %d:1\n", sp->line);
+}