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/*
* Derived from /usr/src/cmd/sh/expand.c, Unix 7th Edition:
*
* Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Redistributions of source code and documentation must retain the
* above copyright notice, this list of conditions and the following
* disclaimer.
* 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.
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed or owned by Caldera
* International, Inc.
* Neither the name of Caldera International, Inc. nor the names of
* other contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
* INTERNATIONAL, INC. 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 CALDERA INTERNATIONAL, INC. 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.
*/
#if __GNUC__ >= 3 && __GNUC_MINOR__ >= 4 || __GNUC__ >= 4
#define USED __attribute__ ((used))
#elif defined __GNUC__
#define USED __attribute__ ((unused))
#else
#define USED
#endif
static const char sccsid[] USED = "@(#)gmatch.sl 1.5 (gritter) 5/29/05";
#include <stdlib.h>
#include <wchar.h>
#include <limits.h>
#include "mbtowi.h"
#define fetch(wc, s, n) ((mb_cur_max > 1 && *(s) & 0200 ? \
((n) = mbtowi(&(wc), (s), mb_cur_max), \
(n) = ((n) > 0 ? (n) : (n) < 0 ? (wc = WEOF, 1) : 1)) :\
((wc) = *(s) & 0377, (n) = 1)), (s) += (n), (wc))
int
gmatch(const char *s, const char *p)
{
const char *bs = s;
int mb_cur_max = MB_CUR_MAX;
wint_t c, scc;
int n;
if (fetch(scc, s, n) == WEOF)
return (0);
switch (fetch(c, p, n)) {
case '[': {
int ok = 0, excl;
unsigned long lc = ULONG_MAX;
const char *bp;
if (*p == '!') {
p++;
excl = 1;
} else
excl = 0;
fetch(c, p, n);
bp = p;
while (c != '\0') {
if (c == ']' && p > bp)
return (ok ^ excl ? gmatch(s, p) : 0);
else if (c == '-' && p > bp && *p != ']') {
if (*p == '\\')
p++;
if (fetch(c, p, n) == '\0')
break;
if (lc <= scc && scc <= c)
ok = 1;
} else {
if (c == '\\') {
if (fetch(c, p, n) == '\0')
break;
}
if (scc == (lc = c))
ok = 1;
}
fetch(c, p, n);
}
return (0);
}
case '\\':
fetch(c, p, n);
if (c == '\0')
return (0);
/*FALLTHRU*/
default:
if (c != scc)
return (0);
/*FALLTHRU*/
case '?':
return (scc ? gmatch(s, p) : 0);
case '*':
if (*p == '\0')
return (1);
s = bs;
while (*s) {
if (gmatch(s, p))
return (1);
fetch(scc, s, n);
}
return (0);
case '\0':
return (scc == '\0');
case WEOF:
return (0);
}
}
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