1 // -*- C++ -*-
2 /* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.com)
4
5 This file is part of groff.
6
7 groff is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
10 version.
11
12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with groff; see the file COPYING. If not, write to the Free Software
19 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
20
21 /* $FreeBSD$ */
22
23 #include <ctype.h>
24 #ifdef __FreeBSD__
25 #include <locale.h>
26 #endif
27 #include "cmap.h"
28
29 cmap cmlower(CMAP_BUILTIN);
30 cmap cmupper(CMAP_BUILTIN);
31
32 #if defined(isascii) && !defined(__FreeBSD__)
33 #define ISASCII(c) isascii(c)
34 #else
35 #define ISASCII(c) (1)
36 #endif
37
cmap()38 cmap::cmap()
39 {
40 unsigned char *p = v;
41 for (int i = 0; i <= UCHAR_MAX; i++)
42 p[i] = i;
43 }
44
cmap(cmap_builtin)45 cmap::cmap(cmap_builtin)
46 {
47 // these are initialised by cmap_init::cmap_init()
48 }
49
50 int cmap_init::initialised = 0;
51
cmap_init()52 cmap_init::cmap_init()
53 {
54 if (initialised)
55 return;
56 initialised = 1;
57 #ifdef __FreeBSD__
58 (void) setlocale(LC_CTYPE, "");
59 #endif
60 for (int i = 0; i <= UCHAR_MAX; i++) {
61 cmupper.v[i] = ISASCII(i) && islower(i) ? toupper(i) : i;
62 cmlower.v[i] = ISASCII(i) && isupper(i) ? tolower(i) : i;
63 }
64 }
65