Wine Cross Reference
wine/tools/widl/utils.c

   /*
    * Utility routines
    *
    * Copyright 1998 Bertho A. Stultiens
    * Copyright 2002 Ove Kaaven
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  #include "wine/port.h"
  
  #include <assert.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <stdarg.h>
  #include <string.h>
  #include <ctype.h>
  
  #include "widl.h"
  #include "utils.h"
  #include "parser.h"
  
  #define CURRENT_LOCATION { input_name ? input_name : "stdin", line_number, parser_text }
  
  static const int want_near_indication = 0;
  
  static void make_print(char *str)
  {
          while(*str)
          {
                  if(!isprint(*str))
                          *str = ' ';
                  str++;
          }
  }
  
  static void generic_msg(const loc_info_t *loc_info, const char *s, const char *t, va_list ap)
  {
          fprintf(stderr, "%s:%d: %s: ", loc_info->input_name, loc_info->line_number, t);
          vfprintf(stderr, s, ap);
  
          if (want_near_indication)
          {
                  char *cpy;
                  if(loc_info->near_text)
                  {
                          cpy = xstrdup(loc_info->near_text);
                          make_print(cpy);
                          fprintf(stderr, " near '%s'", cpy);
                          free(cpy);
                  }
          }
  }
  
  
  void error_loc(const char *s, ...)
  {
          loc_info_t cur_loc = CURRENT_LOCATION;
          va_list ap;
          va_start(ap, s);
          generic_msg(&cur_loc, s, "error", ap);
          va_end(ap);
          exit(1);
  }
  
  /* yyerror:  yacc assumes this is not newline terminated.  */
  void parser_error(const char *s)
  {
          error_loc("%s\n", s);
  }
  
  void error_loc_info(const loc_info_t *loc_info, const char *s, ...)
  {
          va_list ap;
          va_start(ap, s);
          generic_msg(loc_info, s, "error", ap);
          va_end(ap);
          exit(1);
  }
  
  int parser_warning(const char *s, ...)
  {
          loc_info_t cur_loc = CURRENT_LOCATION;
          va_list ap;
          va_start(ap, s);
          generic_msg(&cur_loc, s, "warning", ap);
         va_end(ap);
         return 0;
 }
 
 void error(const char *s, ...)
 {
         va_list ap;
         va_start(ap, s);
         fprintf(stderr, "error: ");
         vfprintf(stderr, s, ap);
         va_end(ap);
         exit(2);
 }
 
 void warning(const char *s, ...)
 {
         va_list ap;
         va_start(ap, s);
         fprintf(stderr, "warning: ");
         vfprintf(stderr, s, ap);
         va_end(ap);
 }
 
 void warning_loc_info(const loc_info_t *loc_info, const char *s, ...)
 {
         va_list ap;
         va_start(ap, s);
         generic_msg(loc_info, s, "warning", ap);
         va_end(ap);
 }
 
 void chat(const char *s, ...)
 {
         if(debuglevel & DEBUGLEVEL_CHAT)
         {
                 va_list ap;
                 va_start(ap, s);
                 fprintf(stderr, "chat: ");
                 vfprintf(stderr, s, ap);
                 va_end(ap);
         }
 }
 
 char *dup_basename(const char *name, const char *ext)
 {
         int namelen;
         int extlen = strlen(ext);
         char *base;
         char *slash;
 
         if(!name)
                 name = "widl.tab";
 
         slash = strrchr(name, '/');
         if (!slash)
                 slash = strrchr(name, '\\');
 
         if (slash)
                 name = slash + 1;
 
         namelen = strlen(name);
 
         /* +4 for later extension and +1 for '\0' */
         base = xmalloc(namelen +4 +1);
         strcpy(base, name);
         if(!strcasecmp(name + namelen-extlen, ext))
         {
                 base[namelen - extlen] = '\0';
         }
         return base;
 }
 
 size_t widl_getline(char **linep, size_t *lenp, FILE *fp)
 {
     char *line = *linep;
     size_t len = *lenp;
     size_t n = 0;
 
     if (!line)
     {
         len = 64;
         line = xmalloc(len);
     }
 
     while (fgets(&line[n], len - n, fp))
     {
         n += strlen(&line[n]);
         if (line[n - 1] == '\n')
             break;
         else if (n == len - 1)
         {
             len *= 2;
             line = xrealloc(line, len);
         }
     }
 
     *linep = line;
     *lenp = len;
     return n;
 }
 
 void *xmalloc(size_t size)
 {
     void *res;
 
     assert(size > 0);
     res = malloc(size);
     if(res == NULL)
     {
         error("Virtual memory exhausted.\n");
     }
     memset(res, 0x55, size);
     return res;
 }
 
 
 void *xrealloc(void *p, size_t size)
 {
     void *res;
 
     assert(size > 0);
     res = realloc(p, size);
     if(res == NULL)
     {
         error("Virtual memory exhausted.\n");
     }
     return res;
 }
 
 char *xstrdup(const char *str)
 {
         char *s;
 
         assert(str != NULL);
         s = xmalloc(strlen(str)+1);
         return strcpy(s, str);
 }