static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/gen/fnmatch.c,v 1.15 2002/02/01 01:32:19 obrien Exp $");
+__FBSDID("$FreeBSD: src/lib/libc/gen/fnmatch.c,v 1.16 2004/07/29 03:13:10 tjr Exp $");
/*
* Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
* Compares a filename or pathname to a pattern.
*/
-#include <ctype.h>
+/*
+ * Some notes on multibyte character support:
+ * 1. Patterns with illegal byte sequences match nothing.
+ * 2. Illegal byte sequences in the "string" argument are handled by treating
+ * them as single-byte characters with a value of the first byte of the
+ * sequence cast to wchar_t.
+ * 3. Multibyte conversion state objects (mbstate_t) are passed around and
+ * used for most, but not all, conversions. Further work will be required
+ * to support state-dependent encodings.
+ */
+
#include <fnmatch.h>
+#include <limits.h>
#include <string.h>
-#include <stdio.h>
+#include <wchar.h>
+#include <wctype.h>
#include "collate.h"
#define RANGE_NOMATCH 0
#define RANGE_ERROR (-1)
-static int rangematch(const char *, char, int, char **);
+static int rangematch(const char *, wchar_t, int, char **, mbstate_t *);
+static int fnmatch1(const char *, const char *, int, mbstate_t, mbstate_t);
int
fnmatch(pattern, string, flags)
const char *pattern, *string;
int flags;
+{
+ static const mbstate_t initial;
+
+ return (fnmatch1(pattern, string, flags, initial, initial));
+}
+
+static int
+fnmatch1(pattern, string, flags, patmbs, strmbs)
+ const char *pattern, *string;
+ int flags;
+ mbstate_t patmbs, strmbs;
{
const char *stringstart;
char *newp;
- char c, test;
+ char c;
+ wchar_t pc, sc;
+ size_t pclen, sclen;
- for (stringstart = string;;)
- switch (c = *pattern++) {
+ for (stringstart = string;;) {
+ pclen = mbrtowc(&pc, pattern, MB_LEN_MAX, &patmbs);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+ return (FNM_NOMATCH);
+ pattern += pclen;
+ sclen = mbrtowc(&sc, string, MB_LEN_MAX, &strmbs);
+ if (sclen == (size_t)-1 || sclen == (size_t)-2) {
+ sc = (unsigned char)*string;
+ sclen = 1;
+ memset(&strmbs, 0, sizeof(strmbs));
+ }
+ switch (pc) {
case EOS:
- if ((flags & FNM_LEADING_DIR) && *string == '/')
+ if ((flags & FNM_LEADING_DIR) && sc == '/')
return (0);
- return (*string == EOS ? 0 : FNM_NOMATCH);
+ return (sc == EOS ? 0 : FNM_NOMATCH);
case '?':
- if (*string == EOS)
+ if (sc == EOS)
return (FNM_NOMATCH);
- if (*string == '/' && (flags & FNM_PATHNAME))
+ if (sc == '/' && (flags & FNM_PATHNAME))
return (FNM_NOMATCH);
- if (*string == '.' && (flags & FNM_PERIOD) &&
+ if (sc == '.' && (flags & FNM_PERIOD) &&
(string == stringstart ||
((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
- ++string;
+ string += sclen;
break;
case '*':
c = *pattern;
while (c == '*')
c = *++pattern;
- if (*string == '.' && (flags & FNM_PERIOD) &&
+ if (sc == '.' && (flags & FNM_PERIOD) &&
(string == stringstart ||
((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
}
/* General case, use recursion. */
- while ((test = *string) != EOS) {
- if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
+ while (sc != EOS) {
+ if (!fnmatch1(pattern, string,
+ flags & ~FNM_PERIOD, patmbs, strmbs))
return (0);
- if (test == '/' && flags & FNM_PATHNAME)
+ sclen = mbrtowc(&sc, string, MB_LEN_MAX,
+ &strmbs);
+ if (sclen == (size_t)-1 ||
+ sclen == (size_t)-2) {
+ sc = (unsigned char)*string;
+ sclen = 1;
+ memset(&strmbs, 0, sizeof(strmbs));
+ }
+ if (sc == '/' && flags & FNM_PATHNAME)
break;
- ++string;
+ string += sclen;
}
return (FNM_NOMATCH);
case '[':
- if (*string == EOS)
+ if (sc == EOS)
return (FNM_NOMATCH);
- if (*string == '/' && (flags & FNM_PATHNAME))
+ if (sc == '/' && (flags & FNM_PATHNAME))
return (FNM_NOMATCH);
- if (*string == '.' && (flags & FNM_PERIOD) &&
+ if (sc == '.' && (flags & FNM_PERIOD) &&
(string == stringstart ||
((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
- switch (rangematch(pattern, *string, flags, &newp)) {
+ switch (rangematch(pattern, sc, flags, &newp,
+ &patmbs)) {
case RANGE_ERROR:
goto norm;
case RANGE_MATCH:
case RANGE_NOMATCH:
return (FNM_NOMATCH);
}
- ++string;
+ string += sclen;
break;
case '\\':
if (!(flags & FNM_NOESCAPE)) {
- if ((c = *pattern++) == EOS) {
- c = '\\';
- --pattern;
- }
+ pclen = mbrtowc(&pc, pattern, MB_LEN_MAX,
+ &patmbs);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+ return (FNM_NOMATCH);
+ if (pclen == 0)
+ pc = '\\';
+ pattern += pclen;
}
/* FALLTHROUGH */
default:
norm:
- if (c == *string)
+ if (pc == sc)
;
else if ((flags & FNM_CASEFOLD) &&
- (tolower((unsigned char)c) ==
- tolower((unsigned char)*string)))
+ (towlower(pc) == towlower(sc)))
;
else
return (FNM_NOMATCH);
- string++;
+ string += sclen;
break;
}
+ }
/* NOTREACHED */
}
static int
-rangematch(pattern, test, flags, newp)
+rangematch(pattern, test, flags, newp, patmbs)
const char *pattern;
- char test;
+ wchar_t test;
int flags;
char **newp;
+ mbstate_t *patmbs;
{
int negate, ok;
- char c, c2;
+ wchar_t c, c2;
+ size_t pclen;
+ const char *origpat;
/*
* A bracket expression starting with an unquoted circumflex
++pattern;
if (flags & FNM_CASEFOLD)
- test = tolower((unsigned char)test);
+ test = towlower(test);
/*
* A right bracket shall lose its special meaning and represent
* -- POSIX.2 2.8.3.2
*/
ok = 0;
- c = *pattern++;
- do {
- if (c == '\\' && !(flags & FNM_NOESCAPE))
- c = *pattern++;
- if (c == EOS)
+ origpat = pattern;
+ for (;;) {
+ if (*pattern == ']' && pattern > origpat) {
+ pattern++;
+ break;
+ } else if (*pattern == '\0') {
return (RANGE_ERROR);
-
- if (c == '/' && (flags & FNM_PATHNAME))
+ } else if (*pattern == '/' && (flags & FNM_PATHNAME)) {
+ pattern++;
+ return (RANGE_NOMATCH);
+ } else if (*pattern == '\\' && !(flags & FNM_NOESCAPE))
+ pattern++;
+ pclen = mbrtowc(&c, pattern, MB_LEN_MAX, patmbs);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
return (RANGE_NOMATCH);
+ pattern += pclen;
if (flags & FNM_CASEFOLD)
- c = tolower((unsigned char)c);
+ c = towlower(c);
- if (*pattern == '-'
- && (c2 = *(pattern+1)) != EOS && c2 != ']') {
- pattern += 2;
- if (c2 == '\\' && !(flags & FNM_NOESCAPE))
- c2 = *pattern++;
+ if (*pattern == '-' && *(pattern + 1) != EOS &&
+ *(pattern + 1) != ']') {
+ if (*++pattern == '\\' && !(flags & FNM_NOESCAPE))
+ if (*pattern != EOS)
+ pattern++;
+ pclen = mbrtowc(&c2, pattern, MB_LEN_MAX, patmbs);
+ if (pclen == (size_t)-1 || pclen == (size_t)-2)
+ return (RANGE_NOMATCH);
+ pattern += pclen;
if (c2 == EOS)
return (RANGE_ERROR);
if (flags & FNM_CASEFOLD)
- c2 = tolower((unsigned char)c2);
+ c2 = towlower(c2);
if (__collate_load_error ?
c <= test && test <= c2 :
ok = 1;
} else if (c == test)
ok = 1;
- } while ((c = *pattern++) != ']');
+ }
*newp = (char *)pattern;
return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);
projects / apple / libc.git / blobdiff