1/* Multiline error-reporting functions. 2 Copyright (C) 2001-2003 Free Software Foundation, Inc. 3 Written by Bruno Haible <haible@clisp.cons.org>, 2001. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2, or (at your option) 8 any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software Foundation, 17 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 18 19 20#ifdef HAVE_CONFIG_H 21# include "config.h" 22#endif 23 24/* Specification. */ 25#include "xerror.h" 26 27#include <stdio.h> 28#include <stdlib.h> 29#include <string.h> 30#include <stdarg.h> 31 32#include "error.h" 33#include "progname.h" 34#include "error-progname.h" 35#include "exit.h" 36#include "mbswidth.h" 37#include "vasprintf.h" 38#include "gettext.h" 39 40#define _(str) gettext (str) 41 42/* Format a message and return the freshly allocated resulting string. */ 43char * 44xasprintf (const char *format, ...) 45{ 46 va_list args; 47 char *result; 48 49 va_start (args, format); 50 if (vasprintf (&result, format, args) < 0) 51 error (EXIT_FAILURE, 0, _("memory exhausted")); 52 va_end (args); 53 return result; 54} 55 56/* Emit a multiline warning to stderr, consisting of MESSAGE, with the 57 first line prefixed with PREFIX and the remaining lines prefixed with 58 the same amount of spaces. Reuse the spaces of the previous call if 59 PREFIX is NULL. Free the PREFIX and MESSAGE when done. */ 60void 61multiline_warning (char *prefix, char *message) 62{ 63 static int width; 64 const char *cp; 65 int i; 66 67 fflush (stdout); 68 69 cp = message; 70 71 if (prefix != NULL) 72 { 73 width = 0; 74 if (error_with_progname) 75 { 76 fprintf (stderr, "%s: ", program_name); 77 width += mbswidth (program_name, 0) + 2; 78 } 79 fputs (prefix, stderr); 80 width += mbswidth (prefix, 0); 81 free (prefix); 82 goto after_indent; 83 } 84 85 for (;;) 86 { 87 const char *np; 88 89 for (i = width; i > 0; i--) 90 putc (' ', stderr); 91 92 after_indent: 93 np = strchr (cp, '\n'); 94 95 if (np == NULL || np[1] == '\0') 96 { 97 fputs (cp, stderr); 98 break; 99 } 100 101 np++; 102 fwrite (cp, 1, np - cp, stderr); 103 cp = np; 104 } 105 106 free (message); 107} 108 109/* Emit a multiline error to stderr, consisting of MESSAGE, with the 110 first line prefixed with PREFIX and the remaining lines prefixed with 111 the same amount of spaces. Reuse the spaces of the previous call if 112 PREFIX is NULL. Free the PREFIX and MESSAGE when done. */ 113void 114multiline_error (char *prefix, char *message) 115{ 116 if (prefix != NULL) 117 ++error_message_count; 118 multiline_warning (prefix, message); 119} 120