1 /* Copyright (C) 1991, 1992, 1993, 1996 Free Software Foundation, Inc.
3 This library is free software; you can redistribute it and/or
4 modify it under the terms of the GNU Library General Public License as
5 published by the Free Software Foundation; either version 2 of the
6 License, or (at your option) any later version.
8 This library is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 Library General Public License for more details.
13 You should have received a copy of the GNU Library General Public
14 License along with this library; see the file COPYING.LIB. If
15 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
16 Cambridge, MA 02139, USA. */
22 /* Enable GNU extensions in fnmatch.h. */
24 # define _GNU_SOURCE 1
32 /* Comment out all this code if we are using the GNU C Library, and are not
33 actually compiling the library itself. This code is part of the GNU C
34 Library, but also included in many other GNU distributions. Compiling
35 and linking in this code is a waste when using the GNU C library
36 (especially if it is a shared library). Rather than having every GNU
37 program understand `configure --with-gnu-libc' and omit the object files,
38 it is simpler to just do this in the source for each such file. */
40 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
43 # if defined (STDC_HEADERS) || !defined (isascii)
46 # define ISASCII(c) isascii(c)
49 # define ISUPPER(c) (ISASCII (c) && isupper (c))
56 /* Match STRING against the filename pattern PATTERN, returning zero if
57 it matches, nonzero if not. */
59 fnmatch (pattern, string, flags)
64 register const char *p = pattern, *n = string;
67 /* Note that this evaluates C many times. */
68 # define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
70 while ((c = *p++) != '\0')
79 else if ((flags & FNM_FILE_NAME) && *n == '/')
81 else if ((flags & FNM_PERIOD) && *n == '.' &&
82 (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
87 if (!(flags & FNM_NOESCAPE))
91 /* Trailing \ loses. */
100 if ((flags & FNM_PERIOD) && *n == '.' &&
101 (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
104 for (c = *p++; c == '?' || c == '*'; c = *p++)
106 if ((flags & FNM_FILE_NAME) && *n == '/')
107 /* A slash does not match a wildcard under FNM_FILE_NAME. */
111 /* A ? needs to match one character. */
113 /* There isn't another character; no match. */
116 /* One character of the string is consumed in matching
117 this ? wildcard, so *??? won't match if there are
118 less than three characters. */
127 char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
129 for (--p; *n != '\0'; ++n)
130 if ((c == '[' || FOLD (*n) == c1) &&
131 fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
138 /* Nonzero if the sense of the character class is inverted. */
144 if ((flags & FNM_PERIOD) && *n == '.' &&
145 (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
148 not = (*p == '!' || *p == '^');
155 register char cstart = c, cend = c;
157 if (!(flags & FNM_NOESCAPE) && c == '\\')
161 cstart = cend = *p++;
164 cstart = cend = FOLD (cstart);
167 /* [ (unterminated) loses. */
173 if ((flags & FNM_FILE_NAME) && c == '/')
174 /* [/] can never match. */
177 if (c == '-' && *p != ']')
180 if (!(flags & FNM_NOESCAPE) && cend == '\\')
189 if (FOLD (*n) >= cstart && FOLD (*n) <= cend)
200 /* Skip the rest of the [...] that already matched. */
204 /* [... (unterminated) loses. */
208 if (!(flags & FNM_NOESCAPE) && c == '\\')
212 /* XXX 1003.2d11 is unclear if this is right. */
232 if ((flags & FNM_LEADING_DIR) && *n == '/')
233 /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
241 #endif /* _LIBC or not __GNU_LIBRARY__. */