tools/wmc/utils.c

   1 /*
   2  * Utility routines
   3  *
   4  * Copyright 1998,2000 Bertho A. Stultiens
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <assert.h>
  29 #include <ctype.h>
  30
  31 #include "wmctypes.h"
  32 #include "utils.h"
  33 #include "wmc.h"
  34
  35 #define SUPPRESS_YACC_ERROR_MESSAGE
  36
  37 static void generic_msg(const char *s, const char *t, va_list ap)
  38 {
  39         fprintf(stderr, "%s %s: %d, %d: ", t, input_name ? input_name : "stdin", line_number, char_number);
  40         vfprintf(stderr, s, ap);
  41         fprintf(stderr, "\n");
  42 }
  43
  44 /*
  45  * The yyerror routine should not exit because we use the error-token
  46  * to determine the syntactic error in the source. However, YACC
  47  * uses the same routine to print an error just before the error
  48  * token is reduced.
  49  * The extra routine 'xyyerror' is used to exit after giving a real
  50  * message.
  51  */
  52 int yyerror(const char *s, ...)
  53 {
  54 #ifndef SUPPRESS_YACC_ERROR_MESSAGE
  55         va_list ap;
  56         va_start(ap, s);
  57         generic_msg(s, "Yacc error", ap);
  58         va_end(ap);
  59 #endif
  60         return 1;
  61 }
  62
  63 int xyyerror(const char *s, ...)
  64 {
  65         va_list ap;
  66         va_start(ap, s);
  67         generic_msg(s, "Error", ap);
  68         va_end(ap);
  69         exit(1);
  70         return 1;
  71 }
  72
  73 int yywarning(const char *s, ...)
  74 {
  75         va_list ap;
  76         va_start(ap, s);
  77         generic_msg(s, "Warning", ap);
  78         va_end(ap);
  79         return 0;
  80 }
  81
  82 void internal_error(const char *file, int line, const char *s, ...)
  83 {
  84         va_list ap;
  85         va_start(ap, s);
  86         fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
  87         vfprintf(stderr, s, ap);
  88         fprintf(stderr, "\n");
  89         va_end(ap);
  90         exit(3);
  91 }
  92
  93 void error(const char *s, ...)
  94 {
  95         va_list ap;
  96         va_start(ap, s);
  97         fprintf(stderr, "Error: ");
  98         vfprintf(stderr, s, ap);
  99         fprintf(stderr, "\n");
 100         va_end(ap);
 101         exit(2);
 102 }
 103
 104 void warning(const char *s, ...)
 105 {
 106         va_list ap;
 107         va_start(ap, s);
 108         fprintf(stderr, "Warning: ");
 109         vfprintf(stderr, s, ap);
 110         fprintf(stderr, "\n");
 111         va_end(ap);
 112 }
 113
 114 char *dup_basename(const char *name, const char *ext)
 115 {
 116         int namelen;
 117         int extlen = strlen(ext);
 118         char *base;
 119         char *slash;
 120
 121         if(!name)
 122                 name = "wmc.tab";
 123
 124         slash = strrchr(name, '/');
 125         if (slash)
 126                 name = slash + 1;
 127
 128         namelen = strlen(name);
 129
 130         /* +4 for later extension and +1 for '\0' */
 131         base = (char *)xmalloc(namelen +4 +1);
 132         strcpy(base, name);
 133         if(!strcasecmp(name + namelen-extlen, ext))
 134         {
 135                 base[namelen - extlen] = '\0';
 136         }
 137         return base;
 138 }
 139
 140 void *xmalloc(size_t size)
 141 {
 142     void *res;
 143
 144     assert(size > 0);
 145     assert(size < 102400);
 146     res = malloc(size);
 147     if(res == NULL)
 148     {
 149         error("Virtual memory exhausted.\n");
 150     }
 151     /*
 152      * We set it to 0.
 153      * This is *paramount* because we depend on it
 154      * just about everywhere in the rest of the code.
 155      */
 156     memset(res, 0, size);
 157     return res;
 158 }
 159
 160
 161 void *xrealloc(void *p, size_t size)
 162 {
 163     void *res;
 164
 165     assert(size > 0);
 166     assert(size < 102400);
 167     res = realloc(p, size);
 168     if(res == NULL)
 169     {
 170         error("Virtual memory exhausted.\n");
 171     }
 172     return res;
 173 }
 174
 175 char *xstrdup(const char *str)
 176 {
 177         char *s;
 178
 179         assert(str != NULL);
 180         s = (char *)xmalloc(strlen(str)+1);
 181         return strcpy(s, str);
 182 }
 183
 184 int unistrlen(const WCHAR *s)
 185 {
 186         int n;
 187         for(n = 0; *s; n++, s++)
 188                 ;
 189         return n;
 190 }
 191
 192 WCHAR *unistrcpy(WCHAR *dst, const WCHAR *src)
 193 {
 194         WCHAR *t = dst;
 195         while(*src)
 196                 *t++ = *src++;
 197         *t = 0;
 198         return dst;
 199 }
 200
 201 WCHAR *xunistrdup(const WCHAR * str)
 202 {
 203         WCHAR *s;
 204
 205         assert(str != NULL);
 206         s = (WCHAR *)xmalloc((unistrlen(str)+1) * sizeof(WCHAR));
 207         return unistrcpy(s, str);
 208 }
 209
 210 int unistricmp(const WCHAR *s1, const WCHAR *s2)
 211 {
 212         int i;
 213         int once = 0;
 214         static const char warn[] = "Don't know the uppercase equivalent of non acsii characters;"
 215                              "comparison might yield wrong results";
 216         while(*s1 && *s2)
 217         {
 218                 if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
 219                 {
 220                         if(!once)
 221                         {
 222                                 once++;
 223                                 yywarning(warn);
 224                         }
 225                         i = *s1++ - *s2++;
 226                 }
 227                 else
 228                         i = toupper(*s1++) - toupper(*s2++);
 229                 if(i)
 230                         return i;
 231         }
 232
 233         if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
 234         {
 235                 if(!once)
 236                         yywarning(warn);
 237                 return *s1 - *s2;
 238         }
 239         else
 240                 return  toupper(*s1) - toupper(*s2);
 241 }
 242
 243 int unistrcmp(const WCHAR *s1, const WCHAR *s2)
 244 {
 245         int i;
 246         while(*s1 && *s2)
 247         {
 248                 i = *s1++ - *s2++;
 249                 if(i)
 250                         return i;
 251         }
 252
 253         return *s1 - *s2;
 254 }