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120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/* Multiline error-reporting functions.
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Copyright (C) 2001-2003 Free Software Foundation, Inc.
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Written by Bruno Haible <haible@clisp.cons.org>, 2001.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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/* Specification. */
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#include "xerror.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include "error.h"
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#include "progname.h"
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#include "error-progname.h"
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#include "exit.h"
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#include "mbswidth.h"
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#include "vasprintf.h"
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#include "gettext.h"
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#define _(str) gettext (str)
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/* Format a message and return the freshly allocated resulting string. */
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char *
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xasprintf (const char *format, ...)
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{
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va_list args;
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char *result;
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va_start (args, format);
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if (vasprintf (&result, format, args) < 0)
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error (EXIT_FAILURE, 0, _("memory exhausted"));
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va_end (args);
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return result;
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}
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/* Emit a multiline warning to stderr, consisting of MESSAGE, with the
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first line prefixed with PREFIX and the remaining lines prefixed with
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the same amount of spaces. Reuse the spaces of the previous call if
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PREFIX is NULL. Free the PREFIX and MESSAGE when done. */
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void
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multiline_warning (char *prefix, char *message)
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{
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static int width;
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const char *cp;
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int i;
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fflush (stdout);
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cp = message;
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if (prefix != NULL)
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{
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width = 0;
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if (error_with_progname)
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{
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fprintf (stderr, "%s: ", program_name);
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width += mbswidth (program_name, 0) + 2;
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}
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fputs (prefix, stderr);
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width += mbswidth (prefix, 0);
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free (prefix);
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goto after_indent;
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}
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for (;;)
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{
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const char *np;
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for (i = width; i > 0; i--)
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putc (' ', stderr);
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after_indent:
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np = strchr (cp, '\n');
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if (np == NULL || np[1] == '\0')
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{
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fputs (cp, stderr);
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break;
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}
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np++;
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fwrite (cp, 1, np - cp, stderr);
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cp = np;
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}
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free (message);
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}
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/* Emit a multiline error to stderr, consisting of MESSAGE, with the
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first line prefixed with PREFIX and the remaining lines prefixed with
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the same amount of spaces. Reuse the spaces of the previous call if
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PREFIX is NULL. Free the PREFIX and MESSAGE when done. */
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void
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multiline_error (char *prefix, char *message)
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{
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if (prefix != NULL)
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++error_message_count;
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multiline_warning (prefix, message);
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}
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