source: trunk/tools/wmc/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 %s: %d, %d: ", t, input_name ? input_name : "stdin", line_number, char_number);
        vfprintf(stderr, s, ap);
        fprintf(stderr, "\n");
}

/*
 * 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 yyerror(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 yywarning(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);
        fprintf(stderr, "\n");
        va_end(ap);
        exit(3);
}

void error(const char *s, ...)
{
        va_list ap;
        va_start(ap, s);
        fprintf(stderr, "Error: ");
        vfprintf(stderr, s, ap);
        fprintf(stderr, "\n");
        va_end(ap);
        exit(2);
}

void warning(const char *s, ...)
{
        va_list ap;
        va_start(ap, s);
        fprintf(stderr, "Warning: ");
        vfprintf(stderr, s, ap);
        fprintf(stderr, "\n");
        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 = (char *)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");
    }
    /*
     * We set it to 0.
     * This is *paramount* because we depend on it
     * just about everywhere in the rest of the code.
     */
    memset(res, 0, 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 = (char *)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 = (WCHAR *)xmalloc((unistrlen(str)+1) * sizeof(WCHAR));
        return unistrcpy(s, str);
}

int unistricmp(const WCHAR *s1, const WCHAR *s2)
{
        int i;
        int once = 0;
        static 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++;
                                yywarning(warn);
                        }
                        i = *s1++ - *s2++;
                }
                else
                        i = toupper(*s1++) - toupper(*s2++);
                if(i)
                        return i;
        }

        if((*s1 & 0xffff) > 0x7f || (*s2 & 0xffff) > 0x7f)
        {
                if(!once)
                        yywarning(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;
}

#if defined(__WIN32OS2__)
INT WINAPI strcasecmp( LPCSTR p1, LPCSTR p2 )
{
    return stricmp( p1, p2 );
}
#endif