1 /* Copyright (C) 1991, 1992, 1993, 1996, 1997 Free Software Foundation, Inc.
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 2, or (at your option)
8 This program 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
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software Foundation,
15 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20 /* Enable GNU extensions in fnmatch.h. */
22 # define _GNU_SOURCE 1
28 /* Comment out all this code if we are using the GNU C Library, and are not
29 actually compiling the library itself. This code is part of the GNU C
30 Library, but also included in many other GNU distributions. Compiling
31 and linking in this code is a waste when using the GNU C library
32 (especially if it is a shared library). Rather than having every GNU
33 program understand `configure --with-gnu-libc' and omit the object files,
34 it is simpler to just do this in the source for each such file. */
36 #if defined _LIBC || !defined __GNU_LIBRARY__
39 # if defined STDC_HEADERS || !defined isascii
42 # define ISASCII(c) isascii(c)
46 # define ISUPPER(c) (ISASCII (c) && isupper (c))
54 /* Match STRING against the filename pattern PATTERN, returning zero if
55 it matches, nonzero if not. */
57 fnmatch (const char *pattern, const char *string, int flags)
59 register const char *p = pattern, *n = string;
62 /* Note that this evaluates C many times. */
63 # define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
65 while ((c = *p++) != '\0')
74 else if ((flags & FNM_FILE_NAME) && *n == '/')
76 else if ((flags & FNM_PERIOD) && *n == '.' &&
77 (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
82 if (!(flags & FNM_NOESCAPE))
86 /* Trailing \ loses. */
95 if ((flags & FNM_PERIOD) && *n == '.' &&
96 (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
99 for (c = *p++; c == '?' || c == '*'; c = *p++)
101 if ((flags & FNM_FILE_NAME) && *n == '/')
102 /* A slash does not match a wildcard under FNM_FILE_NAME. */
106 /* A ? needs to match one character. */
108 /* There isn't another character; no match. */
111 /* One character of the string is consumed in matching
112 this ? wildcard, so *??? won't match if there are
113 less than three characters. */
122 char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
124 for (--p; *n != '\0'; ++n)
125 if ((c == '[' || FOLD (*n) == c1) &&
126 fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
133 /* Nonzero if the sense of the character class is inverted. */
139 if ((flags & FNM_PERIOD) && *n == '.' &&
140 (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
143 nnot = (*p == '!' || *p == '^');
150 register char cstart = c, cend = c;
152 if (!(flags & FNM_NOESCAPE) && c == '\\')
156 cstart = cend = *p++;
159 cstart = cend = FOLD (cstart);
162 /* [ (unterminated) loses. */
168 if ((flags & FNM_FILE_NAME) && c == '/')
169 /* [/] can never match. */
172 if (c == '-' && *p != ']')
175 if (!(flags & FNM_NOESCAPE) && cend == '\\')
184 if (FOLD (*n) >= cstart && FOLD (*n) <= cend)
195 /* Skip the rest of the [...] that already matched. */
199 /* [... (unterminated) loses. */
203 if (!(flags & FNM_NOESCAPE) && c == '\\')
207 /* XXX 1003.2d11 is unclear if this is right. */
227 if ((flags & FNM_LEADING_DIR) && *n == '/')
228 /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
236 #endif /* _LIBC or not __GNU_LIBRARY__. */