1/*
2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Guido van Rossum.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
23 *
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
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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
34 * SUCH DAMAGE.
35 */
36
37#if defined(LIBC_SCCS) && !defined(lint)
38static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
39#endif /* LIBC_SCCS and not lint */
40
41/*
42 * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
43 * Compares a filename or pathname to a pattern.
44 */
45
46#include <fnmatch.h>
47#include <string.h>
48
49#define EOS '\0'
50
51static const char *rangematch __P((const char *, int, int));
52
53int
54fnmatch(pattern, string, flags)
55 const char *pattern, *string;
56 int flags;
57{
58 const char *stringstart;
59 char c, test;
60
61 for (stringstart = string;;)
62 switch (c = *pattern++) {
63 case EOS:
64 return (*string == EOS ? 0 : FNM_NOMATCH);
65 case '?':
66 if (*string == EOS)
67 return (FNM_NOMATCH);
68 if (*string == '/' && (flags & FNM_PATHNAME))
69 return (FNM_NOMATCH);
70 if (*string == '.' && (flags & FNM_PERIOD) &&
71 (string == stringstart ||
72 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
73 return (FNM_NOMATCH);
74 ++string;
75 break;
76 case '*':
77 c = *pattern;
78 /* Collapse multiple stars. */
79 while (c == '*')
80 c = *++pattern;
81
82 if (*string == '.' && (flags & FNM_PERIOD) &&
83 (string == stringstart ||
84 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
85 return (FNM_NOMATCH);
86
87 /* Optimize for pattern with * at end or before /. */
88 if (c == EOS)
89 if (flags & FNM_PATHNAME)
90 return (strchr(string, '/') == NULL ?
91 0 : FNM_NOMATCH);
92 else
93 return (0);
94 else if (c == '/' && flags & FNM_PATHNAME) {
95 if ((string = strchr(string, '/')) == NULL)
96 return (FNM_NOMATCH);
97 break;
98 }
99
100 /* General case, use recursion. */
101 while ((test = *string) != EOS) {
102 if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
103 return (0);
104 if (test == '/' && flags & FNM_PATHNAME)
105 break;
106 ++string;
107 }
108 return (FNM_NOMATCH);
109 case '[':
110 if (*string == EOS)
111 return (FNM_NOMATCH);
112 if (*string == '/' && flags & FNM_PATHNAME)
113 return (FNM_NOMATCH);
114 if ((pattern =
115 rangematch(pattern, *string, flags)) == NULL)
116 return (FNM_NOMATCH);
117 ++string;
118 break;
119 case '\\':
120 if (!(flags & FNM_NOESCAPE)) {
121 if ((c = *pattern++) == EOS) {
122 c = '\\';
123 --pattern;
124 }
125 }
126 /* FALLTHROUGH */
127 default:
128 if (c != *string++)
129 return (FNM_NOMATCH);
130 break;
131 }
132 /* NOTREACHED */
133}
134
135static const char *
136rangematch(pattern, test, flags)
137 const char *pattern;
138 int test, flags;
139{
140 int negate, ok;
141 char c, c2;
142
143 /*
144 * A bracket expression starting with an unquoted circumflex
145 * character produces unspecified results (IEEE 1003.2-1992,
146 * 3.13.2). This implementation treats it like '!', for
147 * consistency with the regular expression syntax.
148 * J.T. Conklin (conklin@ngai.kaleida.com)
149 */
| 1/*
2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Guido van Rossum.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
23 *
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
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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
34 * SUCH DAMAGE.
35 */
36
37#if defined(LIBC_SCCS) && !defined(lint)
38static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
39#endif /* LIBC_SCCS and not lint */
40
41/*
42 * Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
43 * Compares a filename or pathname to a pattern.
44 */
45
46#include <fnmatch.h>
47#include <string.h>
48
49#define EOS '\0'
50
51static const char *rangematch __P((const char *, int, int));
52
53int
54fnmatch(pattern, string, flags)
55 const char *pattern, *string;
56 int flags;
57{
58 const char *stringstart;
59 char c, test;
60
61 for (stringstart = string;;)
62 switch (c = *pattern++) {
63 case EOS:
64 return (*string == EOS ? 0 : FNM_NOMATCH);
65 case '?':
66 if (*string == EOS)
67 return (FNM_NOMATCH);
68 if (*string == '/' && (flags & FNM_PATHNAME))
69 return (FNM_NOMATCH);
70 if (*string == '.' && (flags & FNM_PERIOD) &&
71 (string == stringstart ||
72 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
73 return (FNM_NOMATCH);
74 ++string;
75 break;
76 case '*':
77 c = *pattern;
78 /* Collapse multiple stars. */
79 while (c == '*')
80 c = *++pattern;
81
82 if (*string == '.' && (flags & FNM_PERIOD) &&
83 (string == stringstart ||
84 ((flags & FNM_PATHNAME) && *(string - 1) == '/')))
85 return (FNM_NOMATCH);
86
87 /* Optimize for pattern with * at end or before /. */
88 if (c == EOS)
89 if (flags & FNM_PATHNAME)
90 return (strchr(string, '/') == NULL ?
91 0 : FNM_NOMATCH);
92 else
93 return (0);
94 else if (c == '/' && flags & FNM_PATHNAME) {
95 if ((string = strchr(string, '/')) == NULL)
96 return (FNM_NOMATCH);
97 break;
98 }
99
100 /* General case, use recursion. */
101 while ((test = *string) != EOS) {
102 if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
103 return (0);
104 if (test == '/' && flags & FNM_PATHNAME)
105 break;
106 ++string;
107 }
108 return (FNM_NOMATCH);
109 case '[':
110 if (*string == EOS)
111 return (FNM_NOMATCH);
112 if (*string == '/' && flags & FNM_PATHNAME)
113 return (FNM_NOMATCH);
114 if ((pattern =
115 rangematch(pattern, *string, flags)) == NULL)
116 return (FNM_NOMATCH);
117 ++string;
118 break;
119 case '\\':
120 if (!(flags & FNM_NOESCAPE)) {
121 if ((c = *pattern++) == EOS) {
122 c = '\\';
123 --pattern;
124 }
125 }
126 /* FALLTHROUGH */
127 default:
128 if (c != *string++)
129 return (FNM_NOMATCH);
130 break;
131 }
132 /* NOTREACHED */
133}
134
135static const char *
136rangematch(pattern, test, flags)
137 const char *pattern;
138 int test, flags;
139{
140 int negate, ok;
141 char c, c2;
142
143 /*
144 * A bracket expression starting with an unquoted circumflex
145 * character produces unspecified results (IEEE 1003.2-1992,
146 * 3.13.2). This implementation treats it like '!', for
147 * consistency with the regular expression syntax.
148 * J.T. Conklin (conklin@ngai.kaleida.com)
149 */
|