1 /* @(#)error.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: error.c,v 1.6 2003/08/07 11:17:25 agc Exp $ */
3
4 /*
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "defs.h"
37 #include "context.h"
38 #include "char.h"
39
40 #define ERRLINES 10 /* number of lines for errwin */
41
42 void
error(const char * fmt,...)43 error(const char *fmt, ...)
44 {
45 va_list ap;
46
47 va_start(ap, fmt);
48 verror(fmt, ap);
49 va_end(ap);
50 }
51
52 void
verror(const char * fmt,va_list ap)53 verror(const char *fmt, va_list ap)
54 {
55 struct context *x;
56 struct ww *w;
57
58 for (x = &cx; x != NULL && x->x_type != X_FILE; x = x->x_link)
59 ;
60 if (x == NULL) {
61 if (terse)
62 wwbell();
63 else {
64 wwvprintf(cmdwin, fmt, ap);
65 wwputs(" ", cmdwin);
66 }
67 return;
68 }
69 if (x->x_noerr)
70 return;
71 if ((w = x->x_errwin) == NULL) {
72 char buf[512];
73
74 (void) snprintf(buf, sizeof(buf), "Errors from %s",
75 x->x_filename);
76 if ((w = x->x_errwin = openiwin(ERRLINES, buf)) == NULL) {
77 wwputs("Can't open error window. ", cmdwin);
78 x->x_noerr = 1;
79 return;
80 }
81 }
82 if (more(w, 0) == 2) {
83 x->x_noerr = 1;
84 return;
85 }
86 wwprintf(w, "line %d: ", x->x_lineno);
87 wwvprintf(w, fmt, ap);
88 wwputc('\n', w);
89 }
90
91 void
err_end(void)92 err_end(void)
93 {
94 if (cx.x_type == X_FILE && cx.x_errwin != 0) {
95 if (!cx.x_noerr)
96 waitnl(cx.x_errwin);
97 closeiwin(cx.x_errwin);
98 cx.x_errwin = 0;
99 }
100 }
101