window/error.c

   1 /*      $NetBSD: error.c,v 1.4 1997/11/21 08:36:00 lukem Exp $  */
   2
   3 /*
   4  * Copyright (c) 1983, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Edward Wang at The University of California, Berkeley.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by the University of
  21  *      California, Berkeley and its contributors.
  22  * 4. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include <sys/cdefs.h>
  40 #ifndef lint
  41 #if 0
  42 static char sccsid[] = "@(#)error.c     8.1 (Berkeley) 6/6/93";
  43 #else
  44 __RCSID("$NetBSD: error.c,v 1.4 1997/11/21 08:36:00 lukem Exp $");
  45 #endif
  46 #endif /* not lint */
  47
  48 #include "defs.h"
  49 #include "context.h"
  50 #include "char.h"
  51
  52 #define ERRLINES 10                     /* number of lines for errwin */
  53
  54 void
  55 #if __STDC__
  56 error(const char *fmt, ...)
  57 #else
  58 error(fmt, va_alist)
  59         char *fmt;
  60         va_dcl
  61 #endif
  62 {
  63         va_list ap;
  64 #if __STDC__
  65         va_start(ap, fmt);
  66 #else
  67         va_start(ap);
  68 #endif
  69         verror(fmt, ap);
  70         va_end(ap);
  71 }
  72
  73 void
  74 verror(fmt, ap)
  75         const char *fmt;
  76         va_list ap;
  77 {
  78         struct context *x;
  79         struct ww *w;
  80
  81         for (x = &cx; x != 0 && x->x_type != X_FILE; x = x->x_link)
  82                 ;
  83         if (x == 0) {
  84                 if (terse)
  85                         wwbell();
  86                 else {
  87                         wwvprintf(cmdwin, fmt, ap);
  88                         wwputs("  ", cmdwin);
  89                 }
  90                 return;
  91         }
  92         if (x->x_noerr)
  93                 return;
  94         if ((w = x->x_errwin) == 0) {
  95                 char buf[512];
  96
  97                 (void) snprintf(buf, sizeof(buf), "Errors from %s",
  98                     x->x_filename);
  99                 if ((w = x->x_errwin = openiwin(ERRLINES, buf)) == 0) {
 100                         wwputs("Can't open error window.  ", cmdwin);
 101                         x->x_noerr = 1;
 102                         return;
 103                 }
 104         }
 105         if (more(w, 0) == 2) {
 106                 x->x_noerr = 1;
 107                 return;
 108         }
 109         wwprintf(w, "line %d: ", x->x_lineno);
 110         wwvprintf(w, fmt, ap);
 111         wwputc('\n', w);
 112 }
 113
 114 void
 115 err_end()
 116 {
 117         if (cx.x_type == X_FILE && cx.x_errwin != 0) {
 118                 if (!cx.x_noerr)
 119                         waitnl(cx.x_errwin);
 120                 closeiwin(cx.x_errwin);
 121                 cx.x_errwin = 0;
 122         }
 123 }