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
  24 #include <assert.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <stdarg.h>
  28 #include <string.h>
  29 #include <assert.h>
  30 #include <ctype.h>
  31
  32 #include "wine/unicode.h"
  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:%d: %s: ", input_name ? input_name : "stdin", line_number, char_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         fprintf(stderr, "\n");
  97         va_end(ap);
  98         exit(3);
  99 }
 100
 101 void error(const char *s, ...)
 102 {
 103         va_list ap;
 104         va_start(ap, s);
 105         fprintf(stderr, "Error: ");
 106         vfprintf(stderr, s, ap);
 107         fprintf(stderr, "\n");
 108         va_end(ap);
 109         exit(2);
 110 }
 111
 112 void warning(const char *s, ...)
 113 {
 114         va_list ap;
 115         va_start(ap, s);
 116         fprintf(stderr, "Warning: ");
 117         vfprintf(stderr, s, ap);
 118         fprintf(stderr, "\n");
 119         va_end(ap);
 120 }
 121
 122 void chat(const char *s, ...)
 123 {
 124         if(debuglevel & DEBUGLEVEL_CHAT)
 125         {
 126                 va_list ap;
 127                 va_start(ap, s);
 128                 fprintf(stderr, "FYI: ");
 129                 vfprintf(stderr, s, ap);
 130                 fprintf(stderr, "\n");
 131                 va_end(ap);
 132         }
 133 }
 134
 135 char *dup_basename(const char *name, const char *ext)
 136 {
 137         int namelen;
 138         int extlen = strlen(ext);
 139         char *base;
 140         char *slash;
 141
 142         if(!name)
 143                 name = "widl.tab";
 144
 145         slash = strrchr(name, '/');
 146         if (slash)
 147                 name = slash + 1;
 148
 149         namelen = strlen(name);
 150
 151         /* +4 for later extension and +1 for '\0' */
 152         base = (char *)xmalloc(namelen +4 +1);
 153         strcpy(base, name);
 154         if(!strcasecmp(name + namelen-extlen, ext))
 155         {
 156                 base[namelen - extlen] = '\0';
 157         }
 158         return base;
 159 }
 160
 161 void *xmalloc(size_t size)
 162 {
 163     void *res;
 164
 165     assert(size > 0);
 166     res = malloc(size);
 167     if(res == NULL)
 168     {
 169         error("Virtual memory exhausted.\n");
 170     }
 171     /*
 172      * We set it to 0.
 173      * This is *paramount* because we depend on it
 174      * just about everywhere in the rest of the code.
 175      */
 176     memset(res, 0, size);
 177     return res;
 178 }
 179
 180
 181 void *xrealloc(void *p, size_t size)
 182 {
 183     void *res;
 184
 185     assert(size > 0);
 186     res = realloc(p, size);
 187     if(res == NULL)
 188     {
 189         error("Virtual memory exhausted.\n");
 190     }
 191     return res;
 192 }
 193
 194 char *xstrdup(const char *str)
 195 {
 196         char *s;
 197
 198         assert(str != NULL);
 199         s = (char *)xmalloc(strlen(str)+1);
 200         return strcpy(s, str);
 201 }