2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #if defined(LIBC_SCCS) && !defined(lint)
38 static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
39 #endif /* LIBC_SCCS and not lint */
42 * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
43 * Compares a filename or pathname to a pattern.
56 #define RANGE_NOMATCH 0
57 #define RANGE_ERROR (-1)
59 static int rangematch __P((const char *, char, int, char **));
62 fnmatch(pattern, string, flags)
63 const char *pattern, *string;
66 const char *stringstart;
70 for (stringstart = string;;)
71 switch (c = *pattern++) {
73 if ((flags & FNM_LEADING_DIR) && *string == '/')
75 return (*string == EOS ? 0 : FNM_NOMATCH);
79 if (*string == '/' && (flags & FNM_PATHNAME))
81 if (*string == '.' && (flags & FNM_PERIOD) &&
82 (string == stringstart ||
83 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
89 /* Collapse multiple stars. */
93 if (*string == '.' && (flags & FNM_PERIOD) &&
94 (string == stringstart ||
95 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
98 /* Optimize for pattern with * at end or before /. */
100 if (flags & FNM_PATHNAME)
101 return ((flags & FNM_LEADING_DIR) ||
102 strchr(string, '/') == NULL ?
106 else if (c == '/' && flags & FNM_PATHNAME) {
107 if ((string = strchr(string, '/')) == NULL)
108 return (FNM_NOMATCH);
112 /* General case, use recursion. */
113 while ((test = *string) != EOS) {
114 if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
116 if (test == '/' && flags & FNM_PATHNAME)
120 return (FNM_NOMATCH);
123 return (FNM_NOMATCH);
124 if (*string == '/' && (flags & FNM_PATHNAME))
125 return (FNM_NOMATCH);
126 if (*string == '.' && (flags & FNM_PERIOD) &&
127 (string == stringstart ||
128 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
129 return (FNM_NOMATCH);
131 switch (rangematch(pattern, *string, flags, &newp)) {
138 return (FNM_NOMATCH);
143 if (!(flags & FNM_NOESCAPE)) {
144 if ((c = *pattern++) == EOS) {
154 else if ((flags & FNM_CASEFOLD) &&
155 (tolower((unsigned char)c) ==
156 tolower((unsigned char)*string)))
159 return (FNM_NOMATCH);
167 rangematch(pattern, test, flags, newp)
177 * A bracket expression starting with an unquoted circumflex
178 * character produces unspecified results (IEEE 1003.2-1992,
179 * 3.13.2). This implementation treats it like '!', for
180 * consistency with the regular expression syntax.
181 * J.T. Conklin (conklin@ngai.kaleida.com)
183 if ( (negate = (*pattern == '!' || *pattern == '^')) )
186 if (flags & FNM_CASEFOLD)
187 test = tolower((unsigned char)test);
190 * A right bracket shall lose its special meaning and represent
191 * itself in a bracket expression if it occurs first in the list.
197 if (c == '\\' && !(flags & FNM_NOESCAPE))
200 return (RANGE_ERROR);
202 if (c == '/' && (flags & FNM_PATHNAME))
203 return (RANGE_NOMATCH);
205 if (flags & FNM_CASEFOLD)
206 c = tolower((unsigned char)c);
209 && (c2 = *(pattern+1)) != EOS && c2 != ']') {
211 if (c2 == '\\' && !(flags & FNM_NOESCAPE))
214 return (RANGE_ERROR);
216 if (flags & FNM_CASEFOLD)
217 c2 = tolower((unsigned char)c2);
219 if (__collate_load_error ?
220 c <= test && test <= c2 :
221 __collate_range_cmp(c, test) <= 0
222 && __collate_range_cmp(test, c2) <= 0
225 } else if (c == test)
227 } while ((c = *pattern++) != ']');
229 *newp = (char *)pattern;
230 return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);