TrinityCore/externals/g3dlite/g3dfnmatch.cpp

/*-
* Copyright (c) 1992, 1993
*The Regents of the University of California.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*This product includes software developed by the University of
*California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*@(#)fnmatch.h8.1 (Berkeley) 6/2/93
*
* From FreeBSD fnmatch.h 1.7
* $Id: g3dfnmatch.cpp,v 1.2 2010/02/06 10:03:24 corey_taylor Exp $
*/
#include "G3D/g3dfnmatch.h"

#ifdef G3D_WIN32

#include <ctype.h>
#include <string.h>
#include <stdio.h>

namespace G3D {

#define EOS '\0'

static const char *rangematch(const char *, char, int);

int g3dfnmatch(const char *pattern, const char *string, int flags)
{
    const char *stringstart;
    char c, test;

    for (stringstart = string;;)
        switch (c = *pattern++) {
        case EOS:
            if ((flags & FNM_LEADING_DIR) && *string == '/')
                return (0);
            return (*string == EOS ? 0 : FNM_NOMATCH);
        case '?':
            if (*string == EOS)
                return (FNM_NOMATCH);
            if (*string == '/' && (flags & FNM_PATHNAME))
                return (FNM_NOMATCH);
            if (*string == '.' && (flags & FNM_PERIOD) &&
                (string == stringstart ||
                 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
                return (FNM_NOMATCH);
            ++string;
            break;
        case '*':
            c = *pattern;
            /* Collapse multiple stars. */
            while (c == '*')
                c = *++pattern;

            if (*string == '.' && (flags & FNM_PERIOD) &&
                (string == stringstart ||
                 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
                return (FNM_NOMATCH);

            /* Optimize for pattern with * at end or before /. */
            if (c == EOS)
                if (flags & FNM_PATHNAME)
                    return ((flags & FNM_LEADING_DIR) ||
                            strchr(string, '/') == NULL ?
                            0 : FNM_NOMATCH);
                else
                    return (0);
            else if (c == '/' && flags & FNM_PATHNAME) {
                if ((string = strchr(string, '/')) == NULL)
                    return (FNM_NOMATCH);
                break;
            }

            /* General case, use recursion. */
            while ((test = *string) != EOS) {
                if (!rangematch(pattern, *string, flags & ~FNM_PERIOD))
                    return (0);
                if (test == '/' && flags & FNM_PATHNAME)
                    break;
                ++string;
            }
            return (FNM_NOMATCH);
        case '[':
            if (*string == EOS)
                return (FNM_NOMATCH);
            if (*string == '/' && flags & FNM_PATHNAME)
                return (FNM_NOMATCH);
            if ((pattern =
                 rangematch(pattern, *string, flags)) == NULL)
                return (FNM_NOMATCH);
            ++string;
            break;
        case '\\':
            if (!(flags & FNM_NOESCAPE)) {
                if ((c = *pattern++) == EOS) {
                    c = '\\';
                    --pattern;
                }
            }
            /* FALLTHROUGH */
        default:
            if (c == *string)
                ;
            else if ((flags & FNM_CASEFOLD) &&
                     (tolower((unsigned char)c) ==
                      tolower((unsigned char)*string)))
                ;
            else if ((flags & FNM_PREFIX_DIRS) && *string == EOS &&
                     ((c == '/' && string != stringstart) ||
                      (string == stringstart+1 && *stringstart == '/')))
                return (0);
            else
                return (FNM_NOMATCH);
            string++;
            break;
        }
    /* NOTREACHED */
}

static const char *
rangematch(const char *pattern, char test, int flags)
{
    int negate, ok;
    char c, c2;

    /*
     * A bracket expression starting with an unquoted circumflex
     * character produces unspecified results (IEEE 1003.2-1992,
     * 3.13.2).  This implementation treats it like '!', for
     * consistency with the regular expression syntax.
     * J.T. Conklin (conklin@ngai.kaleida.com)
     */
    if ( (negate = (*pattern == '!' || *pattern == '^')) )
        ++pattern;

    if (flags & FNM_CASEFOLD)
        test = tolower((unsigned char)test);

    for (ok = 0; (c = *pattern++) != ']';) {
        if (c == '\\' && !(flags & FNM_NOESCAPE))
            c = *pattern++;
        if (c == EOS)
            return (NULL);

        if (flags & FNM_CASEFOLD)
            c = tolower((unsigned char)c);

        if (*pattern == '-'
            && (c2 = *(pattern+1)) != EOS && c2 != ']') {
            pattern += 2;
            if (c2 == '\\' && !(flags & FNM_NOESCAPE))
                c2 = *pattern++;
            if (c2 == EOS)
                return (NULL);

            if (flags & FNM_CASEFOLD)
                c2 = tolower((unsigned char)c2);

            if ((unsigned char)c <= (unsigned char)test &&
                (unsigned char)test <= (unsigned char)c2)
                ok = 1;
        } else if (c == test)
            ok = 1;
    }
    return (ok == negate ? NULL : pattern);
}

}

#else

namespace G3D {
int g3dfnmatch(const char * a, const char *b, int c) {
    return fnmatch(a, b, c);
}
}

#endif