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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 <ctype.h>
  31
  32 #include "widl.h"
  33 #include "utils.h"
  34 #include "parser.h"
  35
  36 #define CURRENT_LOCATION { input_name ? input_name : "stdin", line_number, parser_text }
  37
  38 static const int want_near_indication = 0;
  39
  40 static void make_print(char *str)
  41 {
  42         while(*str)
  43         {
  44                 if(!isprint(*str))
  45                         *str = ' ';
  46                 str++;
  47         }
  48 }
  49
  50 static void generic_msg(const loc_info_t *loc_info, const char *s, const char *t, va_list ap)
  51 {
  52         fprintf(stderr, "%s:%d: %s: ", loc_info->input_name, loc_info->line_number, t);
  53         vfprintf(stderr, s, ap);
  54
  55         if (want_near_indication)
  56         {
  57                 char *cpy;
  58                 if(loc_info->near_text)
  59                 {
  60                         cpy = xstrdup(loc_info->near_text);
  61                         make_print(cpy);
  62                         fprintf(stderr, " near '%s'", cpy);
  63                         free(cpy);
  64                 }
  65         }
  66 }
  67
  68
  69 /* yyerror:  yacc assumes this is not newline terminated.  */
  70 void parser_error(const char *s, ...)
  71 {
  72         loc_info_t cur_location = CURRENT_LOCATION;
  73         va_list ap;
  74         va_start(ap, s);
  75         generic_msg(&cur_location, s, "Error", ap);
  76         fprintf(stderr, "\n");
  77         va_end(ap);
  78         exit(1);
  79 }
  80
  81 void error_loc(const char *s, ...)
  82 {
  83         loc_info_t cur_loc = CURRENT_LOCATION;
  84         va_list ap;
  85         va_start(ap, s);
  86         generic_msg(&cur_loc, s, "Error", ap);
  87         va_end(ap);
  88         exit(1);
  89 }
  90
  91 void error_loc_info(const loc_info_t *loc_info, const char *s, ...)
  92 {
  93         va_list ap;
  94         va_start(ap, s);
  95         generic_msg(loc_info, s, "Error", ap);
  96         va_end(ap);
  97         exit(1);
  98 }
  99
 100 int parser_warning(const char *s, ...)
 101 {
 102         loc_info_t cur_loc = CURRENT_LOCATION;
 103         va_list ap;
 104         va_start(ap, s);
 105         generic_msg(&cur_loc, s, "Warning", ap);
 106         va_end(ap);
 107         return 0;
 108 }
 109
 110 void error(const char *s, ...)
 111 {
 112         va_list ap;
 113         va_start(ap, s);
 114         fprintf(stderr, "error: ");
 115         vfprintf(stderr, s, ap);
 116         va_end(ap);
 117         exit(2);
 118 }
 119
 120 void warning(const char *s, ...)
 121 {
 122         va_list ap;
 123         va_start(ap, s);
 124         fprintf(stderr, "warning: ");
 125         vfprintf(stderr, s, ap);
 126         va_end(ap);
 127 }
 128
 129 void warning_loc_info(const loc_info_t *loc_info, const char *s, ...)
 130 {
 131         va_list ap;
 132         va_start(ap, s);
 133         generic_msg(loc_info, s, "Warning", ap);
 134         va_end(ap);
 135 }
 136
 137 void chat(const char *s, ...)
 138 {
 139         if(debuglevel & DEBUGLEVEL_CHAT)
 140         {
 141                 va_list ap;
 142                 va_start(ap, s);
 143                 fprintf(stderr, "chat: ");
 144                 vfprintf(stderr, s, ap);
 145                 va_end(ap);
 146         }
 147 }
 148
 149 char *dup_basename(const char *name, const char *ext)
 150 {
 151         int namelen;
 152         int extlen = strlen(ext);
 153         char *base;
 154         char *slash;
 155
 156         if(!name)
 157                 name = "widl.tab";
 158
 159         slash = strrchr(name, '/');
 160         if (!slash)
 161                 slash = strrchr(name, '\\');
 162
 163         if (slash)
 164                 name = slash + 1;
 165
 166         namelen = strlen(name);
 167
 168         /* +4 for later extension and +1 for '\0' */
 169         base = xmalloc(namelen +4 +1);
 170         strcpy(base, name);
 171         if(!strcasecmp(name + namelen-extlen, ext))
 172         {
 173                 base[namelen - extlen] = '\0';
 174         }
 175         return base;
 176 }
 177
 178 size_t widl_getline(char **linep, size_t *lenp, FILE *fp)
 179 {
 180     char *line = *linep;
 181     size_t len = *lenp;
 182     size_t n = 0;
 183
 184     if (!line)
 185     {
 186         len = 64;
 187         line = xmalloc(len);
 188     }
 189
 190     while (fgets(&line[n], len - n, fp))
 191     {
 192         n += strlen(&line[n]);
 193         if (line[n - 1] == '\n')
 194             break;
 195         else if (n == len - 1)
 196         {
 197             len *= 2;
 198             line = xrealloc(line, len);
 199         }
 200     }
 201
 202     *linep = line;
 203     *lenp = len;
 204     return n;
 205 }
 206
 207 void *xmalloc(size_t size)
 208 {
 209     void *res;
 210
 211     assert(size > 0);
 212     res = malloc(size);
 213     if(res == NULL)
 214     {
 215         error("Virtual memory exhausted.\n");
 216     }
 217     memset(res, 0x55, size);
 218     return res;
 219 }
 220
 221
 222 void *xrealloc(void *p, size_t size)
 223 {
 224     void *res;
 225
 226     assert(size > 0);
 227     res = realloc(p, size);
 228     if(res == NULL)
 229     {
 230         error("Virtual memory exhausted.\n");
 231     }
 232     return res;
 233 }
 234
 235 char *xstrdup(const char *str)
 236 {
 237         char *s;
 238
 239         assert(str != NULL);
 240         s = xmalloc(strlen(str)+1);
 241         return strcpy(s, str);
 242 }