1 /* Copyright (C) 1991-1993, 1996-1999, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 This library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with this library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
23 /* Enable GNU extensions in fnmatch.h. */
25 # define _GNU_SOURCE 1
33 #if HAVE_STRING_H || defined _LIBC
39 #if defined STDC_HEADERS || defined _LIBC
43 /* For platform which support the ISO C amendement 1 functionality we
44 support user defined character classes. */
45 #if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
46 /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
51 /* Comment out all this code if we are using the GNU C Library, and are not
52 actually compiling the library itself. This code is part of the GNU C
53 Library, but also included in many other GNU distributions. Compiling
54 and linking in this code is a waste when using the GNU C library
55 (especially if it is a shared library). Rather than having every GNU
56 program understand `configure --with-gnu-libc' and omit the object files,
57 it is simpler to just do this in the source for each such file. */
59 #if defined _LIBC || !defined __GNU_LIBRARY__
62 # if defined STDC_HEADERS || !defined isascii
65 # define ISASCII(c) isascii(c)
69 # define ISBLANK(c) (ISASCII (c) && isblank (c))
71 # define ISBLANK(c) ((c) == ' ' || (c) == '\t')
74 # define ISGRAPH(c) (ISASCII (c) && isgraph (c))
76 # define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
79 # define ISPRINT(c) (ISASCII (c) && isprint (c))
80 # define ISDIGIT(c) (ISASCII (c) && isdigit (c))
81 # define ISALNUM(c) (ISASCII (c) && isalnum (c))
82 # define ISALPHA(c) (ISASCII (c) && isalpha (c))
83 # define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
84 # define ISLOWER(c) (ISASCII (c) && islower (c))
85 # define ISPUNCT(c) (ISASCII (c) && ispunct (c))
86 # define ISSPACE(c) (ISASCII (c) && isspace (c))
87 # define ISUPPER(c) (ISASCII (c) && isupper (c))
88 # define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
90 # define STREQ(s1, s2) ((strcmp (s1, s2) == 0))
92 # if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
93 /* The GNU C library provides support for user-defined character classes
94 and the functions from ISO C amendement 1. */
95 # ifdef CHARCLASS_NAME_MAX
96 # define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX
98 /* This shouldn't happen but some implementation might still have this
99 problem. Use a reasonable default value. */
100 # define CHAR_CLASS_MAX_LENGTH 256
104 # define IS_CHAR_CLASS(string) __wctype (string)
106 # define IS_CHAR_CLASS(string) wctype (string)
109 # if (HAVE_MBSTATE_T && HAVE_MBSRTOWCS) || _LIBC
110 /* In this case we are implementing the multibyte character handling. */
111 # define HANDLE_MULTIBYTE 1
115 # define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */
117 # define IS_CHAR_CLASS(string) \
118 (STREQ (string, "alpha") || STREQ (string, "upper") \
119 || STREQ (string, "lower") || STREQ (string, "digit") \
120 || STREQ (string, "alnum") || STREQ (string, "xdigit") \
121 || STREQ (string, "space") || STREQ (string, "print") \
122 || STREQ (string, "punct") || STREQ (string, "graph") \
123 || STREQ (string, "cntrl") || STREQ (string, "blank"))
126 /* Avoid depending on library functions or files
127 whose names are inconsistent. */
129 # if !defined _LIBC && !defined getenv
130 extern char *getenv ();
137 /* This function doesn't exist on most systems. */
139 # if !defined HAVE___STRCHRNUL && !defined _LIBC
145 char *result = strchr (s, c);
147 result = strchr (s, '\0');
152 # ifndef internal_function
153 /* Inside GNU libc we mark some function in a special way. In other
154 environments simply ignore the marking. */
155 # define internal_function
158 /* Note that this evaluates C many times. */
160 # define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c))
162 # define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
165 # define UCHAR unsigned char
166 # define FCT internal_fnmatch
168 # define STRCHR(S, C) strchr (S, C)
169 # define STRCHRNUL(S, C) __strchrnul (S, C)
170 # include "fnmatch_loop.c"
173 # if HANDLE_MULTIBYTE
174 /* Note that this evaluates C many times. */
176 # define FOLD(c) ((flags & FNM_CASEFOLD) ? towlower (c) : (c))
178 # define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? towlower (c) : (c))
180 # define CHAR wchar_t
181 # define UCHAR wint_t
182 # define FCT internal_fnwmatch
184 # define __btowc(wc) wc
185 # define STRCHR(S, C) wcschr (S, C)
186 # define STRCHRNUL(S, C) __wcschrnul (S, C)
188 # undef IS_CHAR_CLASS
190 /* We have to convert the wide character string in a multibyte string. But
191 we know that the character class names are ASCII strings and since the
192 internal wide character encoding is UCS4 we can use a simplified method
193 to convert the string to a multibyte character string. */
195 is_char_class (const wchar_t *wcs)
197 char s[CHAR_CLASS_MAX_LENGTH + 1];
202 if (*wcs < 0x20 || *wcs >= 0x7f)
207 while (*wcs++ != L'\0');
212 /* Since we cannot assume anything about the internal encoding we have to
213 convert the string back to multibyte representation the hard way. */
215 is_char_class (const wchar_t *wcs)
221 memset (&ps, '\0', sizeof (ps));
223 n = wcsrtombs (NULL, wcs, 0, &ps);
224 if (n == (size_t) -1)
225 /* Something went wrong. */
229 assert (mbsinit (&ps));
230 (void) wcsrtombs (s, wcs, n + 1, &ps);
235 # define IS_CHAR_CLASS(string) is_char_class (string)
237 # include "fnmatch_loop.c"
241 fnmatch (pattern, string, flags)
246 # if HANDLE_MULTIBYTE
253 /* This is an optimization for 8-bit character set. */
254 return internal_fnmatch (pattern, string, flags & FNM_PERIOD, flags);
256 /* Convert the strings into wide characters. */
257 memset (&ps, '\0', sizeof (ps));
258 n = mbsrtowcs (NULL, &pattern, 0, &ps);
259 if (n == (size_t) -1)
261 XXX Do we have to set `errno' to something which mbsrtows hasn't
264 wpattern = (wchar_t *) alloca ((n + 1) * sizeof (wchar_t));
265 assert (mbsinit (&ps));
266 (void) mbsrtowcs (wpattern, &pattern, n + 1, &ps);
268 assert (mbsinit (&ps));
269 n = mbsrtowcs (NULL, &string, 0, &ps);
270 if (n == (size_t) -1)
272 XXX Do we have to set `errno' to something which mbsrtows hasn't
275 wstring = (wchar_t *) alloca ((n + 1) * sizeof (wchar_t));
276 assert (mbsinit (&ps));
277 (void) mbsrtowcs (wstring, &string, n + 1, &ps);
279 return internal_fnwmatch (wpattern, wstring, flags & FNM_PERIOD, flags);
281 return internal_fnmatch (pattern, string, flags & FNM_PERIOD, flags);
282 # endif /* mbstate_t and mbsrtowcs or _LIBC. */
285 #endif /* _LIBC or not __GNU_LIBRARY__. */