--- /dev/null
+/*
+ * Copyright (c) 1989, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Guido van Rossum.
+ *
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/lib/libc/gen/fnmatch.c,v 1.16 2004/07/29 03:13:10 tjr Exp $");
+
+#include "xlocale_private.h"
+
+/*
+ * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
+ * Compares a filename or pathname to a pattern.
+ */
+
+/*
+ * Some notes on multibyte character support:
+ * 1. Patterns with illegal byte sequences match nothing.
+ * 2. Illegal byte sequences in the "string" argument are handled by treating
+ * them as single-byte characters with a value of the first byte of the
+ * sequence cast to wchar_t.
+ * 3. Multibyte conversion state objects (mbstate_t) are passed around and
+ * used for most, but not all, conversions. Further work will be required
+ * to support state-dependent encodings.
+ */
+
+#include <fnmatch.h>
+#include <limits.h>
+#include <string.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#include "collate.h"
+
+#define EOS '\0'
+
+#if __DARWIN_UNIX03
+#define RETURN_ERROR 2 /* neither 0 or FNM_NOMATCH */
+#endif /* __DARWIN_UNIX03 */
+#define RANGE_MATCH 1
+#define RANGE_NOMATCH 0
+#define RANGE_ERROR (-1)
+
+__private_extern__ int rangematch(const char *, wchar_t, const char *, int, char **, char **, mbstate_t *, mbstate_t *, locale_t);
+static int fnmatch1(const char *, const char *, int, mbstate_t, mbstate_t, locale_t);
+
+int
+fnmatch(pattern, string, flags)
+ const char *pattern, *string;
+ int flags;
+{
+ static const mbstate_t initial;
+
+ return (fnmatch1(pattern, string, flags, initial, initial, __current_locale()));
+}
+
+static int
+fnmatch1(pattern, string, flags, patmbs, strmbs, loc)
+ const char *pattern, *string;
+ int flags;
+ mbstate_t patmbs, strmbs;
+ locale_t loc;
+{
+ const char *stringstart;
+ char *newp, *news;
+ char c;
+ wchar_t pc, sc;
+ size_t pclen, sclen;
+
+ for (stringstart = string;;) {
+ pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX, &patmbs, loc);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+#if __DARWIN_UNIX03
+ return (RETURN_ERROR);
+#else /* !__DARWIN_UNIX03 */
+ return (FNM_NOMATCH);
+#endif /* __DARWIN_UNIX03 */
+ pattern += pclen;
+ sclen = mbrtowc_l(&sc, string, MB_LEN_MAX, &strmbs, loc);
+ if (sclen == (size_t)-1 || sclen == (size_t)-2) {
+ sc = (unsigned char)*string;
+ sclen = 1;
+ memset(&strmbs, 0, sizeof(strmbs));
+ }
+ switch (pc) {
+ case EOS:
+ if ((flags & FNM_LEADING_DIR) && sc == '/')
+ return (0);
+ return (sc == EOS ? 0 : FNM_NOMATCH);
+ case '?':
+ if (sc == EOS)
+ return (FNM_NOMATCH);
+ if (sc == '/' && (flags & FNM_PATHNAME))
+ return (FNM_NOMATCH);
+ if (sc == '.' && (flags & FNM_PERIOD) &&
+ (string == stringstart ||
+ ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
+ return (FNM_NOMATCH);
+ string += sclen;
+ break;
+ case '*':
+ c = *pattern;
+ /* Collapse multiple stars. */
+ while (c == '*')
+ c = *++pattern;
+
+ if (sc == '.' && (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 (sc != EOS) {
+ if (!fnmatch1(pattern, string,
+ flags & ~FNM_PERIOD, patmbs, strmbs, loc))
+ return (0);
+ sclen = mbrtowc_l(&sc, string, MB_LEN_MAX,
+ &strmbs, loc);
+ if (sclen == (size_t)-1 ||
+ sclen == (size_t)-2) {
+ sc = (unsigned char)*string;
+ sclen = 1;
+ memset(&strmbs, 0, sizeof(strmbs));
+ }
+ if (sc == '/' && flags & FNM_PATHNAME)
+ break;
+ string += sclen;
+ }
+ return (FNM_NOMATCH);
+ case '[':
+ if (sc == EOS)
+ return (FNM_NOMATCH);
+ if (sc == '/' && (flags & FNM_PATHNAME))
+ return (FNM_NOMATCH);
+ if (sc == '.' && (flags & FNM_PERIOD) &&
+ (string == stringstart ||
+ ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
+ return (FNM_NOMATCH);
+
+ switch (rangematch(pattern, sc, string + sclen, flags,
+ &newp, &news, &patmbs, &strmbs, loc)) {
+ case RANGE_ERROR:
+#if __DARWIN_UNIX03
+ return (RETURN_ERROR);
+#else /* !__DARWIN_UNIX03 */
+ goto norm;
+#endif /* __DARWIN_UNIX03 */
+ case RANGE_MATCH:
+ pattern = newp;
+ string = news;
+ break;
+ case RANGE_NOMATCH:
+ return (FNM_NOMATCH);
+ }
+ break;
+ case '\\':
+ if (!(flags & FNM_NOESCAPE)) {
+ pclen = mbrtowc_l(&pc, pattern, MB_LEN_MAX,
+ &patmbs, loc);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+#if __DARWIN_UNIX03
+ return (RETURN_ERROR);
+#else /* !__DARWIN_UNIX03 */
+ return (FNM_NOMATCH);
+#endif /* __DARWIN_UNIX03 */
+ if (pclen == 0)
+ pc = '\\';
+ pattern += pclen;
+ }
+ /* FALLTHROUGH */
+ default:
+#if !__DARWIN_UNIX03
+ norm:
+#endif /* !__DARWIN_UNIX03 */
+ if (pc == sc)
+ ;
+ else if ((flags & FNM_CASEFOLD) &&
+ (towlower_l(pc, loc) == towlower_l(sc, loc)))
+ ;
+ else
+ return (FNM_NOMATCH);
+ string += sclen;
+ break;
+ }
+ }
+ /* NOTREACHED */
+}
+
+#ifndef BUILDING_VARIANT
+__private_extern__ int
+rangematch(pattern, test, string, flags, newp, news, patmbs, strmbs, loc)
+ const char *pattern, *string;
+ wchar_t test;
+ int flags;
+ char **newp, **news;
+ mbstate_t *patmbs, *strmbs;
+ locale_t loc;
+{
+ int negate, ok, special;
+ wchar_t c, c2;
+ wchar_t buf[STR_LEN]; /* STR_LEN defined in collate.h */
+ size_t pclen, sclen, len;
+ const char *origpat, *cp, *savestring;
+ mbstate_t save;
+
+ /*
+ * 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 = towlower_l(test, loc);
+
+ /*
+ * A right bracket shall lose its special meaning and represent
+ * itself in a bracket expression if it occurs first in the list.
+ * -- POSIX.2 2.8.3.2
+ */
+ ok = 0;
+ origpat = pattern;
+ for (;;) {
+ c = 0;
+ if (*pattern == ']' && pattern > origpat) {
+ break;
+ } else if (*pattern == '\0') {
+ return (RANGE_ERROR);
+ } else if (*pattern == '/' && (flags & FNM_PATHNAME)) {
+ pattern++;
+ return (RANGE_NOMATCH);
+ } else if (*pattern == '\\' && !(flags & FNM_NOESCAPE))
+ pattern++;
+ else if (*pattern == '[' && ((special = *(pattern + 1)) == '.' || special == '=' || special == ':')) {
+ cp = (pattern += 2);
+ while(cp = strchr(cp, special)) {
+ if (*(cp + 1) == ']')
+ break;
+ cp++;
+ }
+ if (!cp)
+ return (RANGE_ERROR);
+ if (special == '.') {
+treat_like_collating_symbol:
+ len = __collate_collating_symbol(buf, STR_LEN, pattern, cp - pattern, patmbs, loc);
+ if (len == (size_t)-1 || len == 0)
+ return (RANGE_ERROR);
+ pattern = cp + 2;
+ if (len > 1) {
+ wchar_t *wp, sc;
+ /* no multi-character collation symbols as start of range */
+ if (*(cp + 2) == '-' && *(cp + 3) != EOS
+ && *(cp + 3) != ']')
+ return (RANGE_ERROR);
+ wp = buf;
+ if (test != *wp++)
+ continue;
+ if (len == 1) {
+ ok = 1;
+ break;
+ }
+ memcpy(&save, strmbs, sizeof(save));
+ savestring = string;
+ while (--len > 0) {
+ sclen = mbrtowc_l(&sc, string, MB_LEN_MAX, strmbs, loc);
+ if (sclen == (size_t)-1 || sclen == (size_t)-2) {
+ sc = (unsigned char)*string;
+ sclen = 1;
+ memset(&strmbs, 0, sizeof(strmbs));
+ }
+ if (sc != *wp++) {
+ memcpy(strmbs, &save, sizeof(save));
+ string = savestring;
+ break;
+ }
+ string += sclen;
+ }
+ if (len == 0) {
+ ok = 1;
+ break;
+ }
+ continue; /* no match */
+ }
+ c = *buf;
+ } else if (special == '=') {
+ int ec;
+ memcpy(&save, patmbs, sizeof(save));
+ ec = __collate_equiv_class(pattern, cp - pattern, patmbs, loc);
+ if (ec < 0)
+ return (RANGE_ERROR);
+ if (ec == 0) {
+ memcpy(patmbs, &save, sizeof(save));
+ goto treat_like_collating_symbol;
+ }
+ pattern = cp + 2;
+ /* no equivalence classes as start of range */
+ if (*(cp + 2) == '-' && *(cp + 3) != EOS &&
+ *(cp + 3) != ']')
+ return (RANGE_ERROR);
+ len = __collate_equiv_match(ec, NULL, 0, test, string, strlen(string), strmbs, &sclen, loc);
+ if (len < 0)
+ return (RANGE_ERROR);
+ if (len > 0) {
+ ok = 1;
+ string += sclen;
+ break;
+ }
+ continue;
+ } else { /* special == ':' */
+ wctype_t charclass;
+ char name[CHARCLASS_NAME_MAX + 1];
+ /* no character classes as start of range */
+ if (*(cp + 2) == '-' && *(cp + 3) != EOS &&
+ *(cp + 3) != ']')
+ return (RANGE_ERROR);
+ /* assume character class names are ascii */
+ if (cp - pattern > CHARCLASS_NAME_MAX)
+ return (RANGE_ERROR);
+ strlcpy(name, pattern, cp - pattern + 1);
+ pattern = cp + 2;
+ if ((charclass = wctype(name)) == 0)
+ return (RANGE_ERROR);
+ if (iswctype_l(test, charclass, loc)) {
+ ok = 1;
+ break;
+ }
+ continue;
+ }
+ }
+ if (!c) {
+ pclen = mbrtowc_l(&c, pattern, MB_LEN_MAX, patmbs, loc);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+ return (RANGE_ERROR);
+ pattern += pclen;
+ }
+
+ if (flags & FNM_CASEFOLD)
+ c = towlower_l(c, loc);
+
+ if (*pattern == '-' && *(pattern + 1) != EOS &&
+ *(pattern + 1) != ']') {
+ if (*++pattern == '\\' && !(flags & FNM_NOESCAPE))
+ if (*pattern != EOS)
+ pattern++;
+ pclen = mbrtowc_l(&c2, pattern, MB_LEN_MAX, patmbs, loc);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+ return (RANGE_ERROR);
+ pattern += pclen;
+ if (c2 == EOS)
+ return (RANGE_ERROR);
+
+ if (c2 == '[' && (special = *pattern) == '.' || special == '=' || special == ':') {
+ /* no equivalence classes or character classes as end of range */
+ if (special == '=' || special == ':')
+ return (RANGE_ERROR);
+ cp = ++pattern;
+ while(cp = strchr(cp, special)) {
+ if (*(cp + 1) == ']')
+ break;
+ cp++;
+ }
+ if (!cp)
+ return (RANGE_ERROR);
+ len = __collate_collating_symbol(buf, STR_LEN, pattern, cp - pattern, patmbs, loc);
+ /* no multi-character collation symbols as end of range */
+ if (len != 1)
+ return (RANGE_ERROR);
+ pattern = cp + 2;
+ c2 = *buf;
+ }
+
+ if (flags & FNM_CASEFOLD)
+ c2 = towlower_l(c2, loc);
+
+ if (loc->__collate_load_error ?
+ c <= test && test <= c2 :
+ __collate_range_cmp(c, test, loc) <= 0
+ && __collate_range_cmp(test, c2, loc) <= 0
+ ) {
+ ok = 1;
+ break;
+ }
+ } else if (c == test) {
+ ok = 1;
+ break;
+ }
+ }
+ /* go to end of bracket expression */
+ special = 0;
+ while(*pattern != ']') {
+ if (*pattern == 0)
+ return (RANGE_ERROR);
+ if (*pattern == special) {
+ if (*++pattern == ']') {
+ special = 0;
+ pattern++;
+ }
+ continue;
+ }
+ if (!special && *pattern == '[') {
+ special = *++pattern;
+ if (special != '.' && special != '=' && special != ':')
+ special = 0;
+ else
+ pattern++;
+ continue;
+ }
+ pclen = mbrtowc_l(&c, pattern, MB_LEN_MAX, patmbs, loc);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+ return (RANGE_ERROR);
+ pattern += pclen;
+ }
+
+ *newp = (char *)++pattern;
+ *news = (char *)string;
+ return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);
+}
+#endif /* BUILDING_VARIANT */
projects / apple / libc.git / blobdiff