tools/widl/utils.c

   1 /*
   2  * Utility routines
   3  *
   4  * Copyright 1998 Bertho A. Stultiens
   5  * Copyright 2002 Ove Kaaven
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <assert.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <stdarg.h>
  29 #include <string.h>
  30 #include <assert.h>
  31 #include <ctype.h>
  32
  33 #include "widl.h"
  34 #include "utils.h"
  35 #include "parser.h"
  36
  37 /* #define WANT_NEAR_INDICATION */
  38
  39 #ifdef WANT_NEAR_INDICATION
  40 void make_print(char *str)
  41 {
  42         while(*str)
  43         {
  44                 if(!isprint(*str))
  45                         *str = ' ';
  46                 str++;
  47         }
  48 }
  49 #endif
  50
  51 static void generic_msg(const char *s, const char *t, const char *n, va_list ap)
  52 {
  53         fprintf(stderr, "%s:%d: %s: ", input_name ? input_name : "stdin", line_number, t);
  54         vfprintf(stderr, s, ap);
  55 #ifdef WANT_NEAR_INDICATION
  56         {
  57                 char *cpy;
  58                 if(n)
  59                 {
  60                         cpy = xstrdup(n);
  61                         make_print(cpy);
  62                         fprintf(stderr, " near '%s'", cpy);
  63                         free(cpy);
  64                 }
  65         }
  66 #endif
  67         fprintf(stderr, "\n");
  68 }
  69
  70
  71 int yyerror(const char *s, ...)
  72 {
  73         va_list ap;
  74         va_start(ap, s);
  75         generic_msg(s, "Error", yytext, ap);
  76         va_end(ap);
  77         exit(1);
  78         return 1;
  79 }
  80
  81 int yywarning(const char *s, ...)
  82 {
  83         va_list ap;
  84         va_start(ap, s);
  85         generic_msg(s, "Warning", yytext, ap);
  86         va_end(ap);
  87         return 0;
  88 }
  89
  90 void internal_error(const char *file, int line, const char *s, ...)
  91 {
  92         va_list ap;
  93         va_start(ap, s);
  94         fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
  95         vfprintf(stderr, s, ap);
  96         va_end(ap);
  97         exit(3);
  98 }
  99
 100 void error(const char *s, ...)
 101 {
 102         va_list ap;
 103         va_start(ap, s);
 104         fprintf(stderr, "error: ");
 105         vfprintf(stderr, s, ap);
 106         va_end(ap);
 107         exit(2);
 108 }
 109
 110 void warning(const char *s, ...)
 111 {
 112         va_list ap;
 113         va_start(ap, s);
 114         fprintf(stderr, "warning: ");
 115         vfprintf(stderr, s, ap);
 116         va_end(ap);
 117 }
 118
 119 void chat(const char *s, ...)
 120 {
 121         if(debuglevel & DEBUGLEVEL_CHAT)
 122         {
 123                 va_list ap;
 124                 va_start(ap, s);
 125                 fprintf(stderr, "chat: ");
 126                 vfprintf(stderr, s, ap);
 127                 va_end(ap);
 128         }
 129 }
 130
 131 char *dup_basename(const char *name, const char *ext)
 132 {
 133         int namelen;
 134         int extlen = strlen(ext);
 135         char *base;
 136         char *slash;
 137
 138         if(!name)
 139                 name = "widl.tab";
 140
 141         slash = strrchr(name, '/');
 142         if (slash)
 143                 name = slash + 1;
 144
 145         namelen = strlen(name);
 146
 147         /* +4 for later extension and +1 for '\0' */
 148         base = (char *)xmalloc(namelen +4 +1);
 149         strcpy(base, name);
 150         if(!strcasecmp(name + namelen-extlen, ext))
 151         {
 152                 base[namelen - extlen] = '\0';
 153         }
 154         return base;
 155 }
 156
 157 void *xmalloc(size_t size)
 158 {
 159     void *res;
 160
 161     assert(size > 0);
 162     res = malloc(size);
 163     if(res == NULL)
 164     {
 165         error("Virtual memory exhausted.\n");
 166     }
 167     /*
 168      * We set it to 0.
 169      * This is *paramount* because we depend on it
 170      * just about everywhere in the rest of the code.
 171      */
 172     memset(res, 0, size);
 173     return res;
 174 }
 175
 176
 177 void *xrealloc(void *p, size_t size)
 178 {
 179     void *res;
 180
 181     assert(size > 0);
 182     res = realloc(p, size);
 183     if(res == NULL)
 184     {
 185         error("Virtual memory exhausted.\n");
 186     }
 187     return res;
 188 }
 189
 190 char *xstrdup(const char *str)
 191 {
 192         char *s;
 193
 194         assert(str != NULL);
 195         s = (char *)xmalloc(strlen(str)+1);
 196         return strcpy(s, str);
 197 }