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utils.c

/*
 * Utility routines
 *
 * Copyright 1998,2000 Bertho A. Stultiens
 *
 * 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 <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>

#include "wmctypes.h"
#include "utils.h"
#include "wmc.h"

#define SUPPRESS_YACC_ERROR_MESSAGE

static void generic_msg(const char *s, const char *t, va_list ap)
{
      fprintf(stderr, "%s:%d:%d: %s: ", input_name ? input_name : "stdin", line_number, char_number, t);
      vfprintf(stderr, s, ap);
}

/*
 * The yyerror routine should not exit because we use the error-token
 * to determine the syntactic error in the source. However, YACC
 * uses the same routine to print an error just before the error
 * token is reduced.
 * The extra routine 'xyyerror' is used to exit after giving a real
 * message.
 */
int mcy_error(const char *s, ...)
{
#ifndef SUPPRESS_YACC_ERROR_MESSAGE
      va_list ap;
      va_start(ap, s);
      generic_msg(s, "Yacc error", ap);
      va_end(ap);
#endif
      return 1;
}

int xyyerror(const char *s, ...)
{
      va_list ap;
      va_start(ap, s);
      generic_msg(s, "Error", ap);
      va_end(ap);
      exit(1);
      return 1;
}

int mcy_warning(const char *s, ...)
{
      va_list ap;
      va_start(ap, s);
      generic_msg(s, "Warning", ap);
      va_end(ap);
      return 0;
}

void internal_error(const char *file, int line, const char *s, ...)
{
      va_list ap;
      va_start(ap, s);
      fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
      vfprintf(stderr, s, ap);
      va_end(ap);
      exit(3);
}

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);
}

char *dup_basename(const char *name, const char *ext)
{
      int namelen;
      int extlen = strlen(ext);
      char *base;
      char *slash;

      if(!name)
            name = "wmc.tab";

      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;
}

void *xmalloc(size_t size)
{
    void *res;

    assert(size > 0);
    assert(size < 102400);
    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);
    assert(size < 102400);
    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);
}

int unistrlen(const WCHAR *s)
{
      int n;
      for(n = 0; *s; n++, s++)
            ;
      return n;
}

WCHAR *unistrcpy(WCHAR *dst, const WCHAR *src)
{
      WCHAR *t = dst;
      while(*src)
            *t++ = *src++;
      *t = 0;
      return dst;
}

WCHAR *xunistrdup(const WCHAR * str)
{
      WCHAR *s;

      assert(str != NULL);
      s = xmalloc((unistrlen(str)+1) * sizeof(WCHAR));
      return unistrcpy(s, str);
}

int unistricmp(const WCHAR *s1, const WCHAR *s2)
{
      int i;
      int once = 0;
      static const char warn[] = "Don't know the uppercase equivalent of non acsii characters;"
                             "comparison might yield wrong results";
      while(*s1 && *s2)
      {
            if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
            {
                  if(!once)
                  {
                        once++;
                        mcy_warning(warn);
                  }
                  i = *s1++ - *s2++;
            }
            else
                  i = toupper(*s1++) - toupper(*s2++);
            if(i)
                  return i;
      }

      if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
      {
            if(!once)
                  mcy_warning(warn);
            return *s1 - *s2;
      }
      else
            return      toupper(*s1) - toupper(*s2);
}

int unistrcmp(const WCHAR *s1, const WCHAR *s2)
{
      int i;
      while(*s1 && *s2)
      {
            i = *s1++ - *s2++;
            if(i)
                  return i;
      }

      return *s1 - *s2;
}

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