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
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9 * modification, are permitted provided that the following conditions
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12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
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15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * From FreeBSD fnmatch.c 1.11
35 * $Id: fnmatch.c,v 1.3 1997/08/19 02:34:30 jdp Exp $
38 #if defined(LIBC_SCCS) && !defined(lint)
39 static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
40 #endif /* LIBC_SCCS and not lint */
43 * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
44 * Compares a filename or pathname to a pattern.
55 static const char *rangematch(const char *, char, int);
58 fnmatch(const char *pattern, const char *string, int flags)
60 const char *stringstart;
63 for (stringstart = string;;)
64 switch (c = *pattern++) {
66 if ((flags & FNM_LEADING_DIR) && *string == '/')
68 return (*string == EOS ? 0 : FNM_NOMATCH);
72 if (*string == '/' && (flags & FNM_PATHNAME))
74 if (*string == '.' && (flags & FNM_PERIOD) &&
75 (string == stringstart ||
76 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
82 /* Collapse multiple stars. */
86 if (*string == '.' && (flags & FNM_PERIOD) &&
87 (string == stringstart ||
88 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
91 /* Optimize for pattern with * at end or before /. */
93 if (flags & FNM_PATHNAME)
94 return ((flags & FNM_LEADING_DIR) ||
95 strchr(string, '/') == NULL ?
99 else if (c == '/' && flags & FNM_PATHNAME) {
100 if ((string = strchr(string, '/')) == NULL)
101 return (FNM_NOMATCH);
105 /* General case, use recursion. */
106 while ((test = *string) != EOS) {
107 if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
109 if (test == '/' && flags & FNM_PATHNAME)
113 return (FNM_NOMATCH);
116 return (FNM_NOMATCH);
117 if (*string == '/' && flags & FNM_PATHNAME)
118 return (FNM_NOMATCH);
120 rangematch(pattern, *string, flags)) == NULL)
121 return (FNM_NOMATCH);
125 if (!(flags & FNM_NOESCAPE)) {
126 if ((c = *pattern++) == EOS) {
135 else if ((flags & FNM_CASEFOLD) &&
136 (tolower((unsigned char)c) ==
137 tolower((unsigned char)*string)))
139 else if ((flags & FNM_PREFIX_DIRS) && *string == EOS &&
140 ((c == '/' && string != stringstart) ||
141 (string == stringstart+1 && *stringstart == '/')))
144 return (FNM_NOMATCH);
152 rangematch(const char *pattern, char test, int flags)
158 * A bracket expression starting with an unquoted circumflex
159 * character produces unspecified results (IEEE 1003.2-1992,
160 * 3.13.2). This implementation treats it like '!', for
161 * consistency with the regular expression syntax.
162 * J.T. Conklin (conklin@ngai.kaleida.com)
164 if ( (negate = (*pattern == '!' || *pattern == '^')) )
167 if (flags & FNM_CASEFOLD)
168 test = tolower((unsigned char)test);
170 for (ok = 0; (c = *pattern++) != ']';) {
171 if (c == '\\' && !(flags & FNM_NOESCAPE))
176 if (flags & FNM_CASEFOLD)
177 c = tolower((unsigned char)c);
180 && (c2 = *(pattern+1)) != EOS && c2 != ']') {
182 if (c2 == '\\' && !(flags & FNM_NOESCAPE))
187 if (flags & FNM_CASEFOLD)
188 c2 = tolower((unsigned char)c2);
190 if ((unsigned char)c <= (unsigned char)test &&
191 (unsigned char)test <= (unsigned char)c2)
193 } else if (c == test)
196 return (ok == negate ? NULL : pattern);