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