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-rw-r--r--posix/fnmatch.c183
1 files changed, 153 insertions, 30 deletions
diff --git a/posix/fnmatch.c b/posix/fnmatch.c
index e143743215..4f5c667b02 100644
--- a/posix/fnmatch.c
+++ b/posix/fnmatch.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1993, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 96, 97, 98 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This library is free software; you can redistribute it and/or
@@ -29,6 +29,23 @@
#include <fnmatch.h>
#include <ctype.h>
+#if HAVE_STRING_H
+# include <string.h>
+#else
+# include <strings.h>
+#endif
+
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+#endif
+
+/* For platform which support the ISO C amendement 1 functionality we
+ support user defined character classes. */
+#if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
+# include <wchar.h>
+# include <wctype.h>
+#endif
/* Comment out all this code if we are using the GNU C Library, and are not
actually compiling the library itself. This code is part of the GNU C
@@ -47,8 +64,64 @@
# define ISASCII(c) isascii(c)
# endif
-# define ISUPPER(c) (ISASCII (c) && isupper (c))
+#ifdef isblank
+# define ISBLANK(c) (ISASCII (c) && isblank (c))
+#else
+# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+#endif
+#ifdef isgraph
+# define ISGRAPH(c) (ISASCII (c) && isgraph (c))
+#else
+# define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
+#endif
+
+#define ISPRINT(c) (ISASCII (c) && isprint (c))
+#define ISDIGIT(c) (ISASCII (c) && isdigit (c))
+#define ISALNUM(c) (ISASCII (c) && isalnum (c))
+#define ISALPHA(c) (ISASCII (c) && isalpha (c))
+#define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
+#define ISLOWER(c) (ISASCII (c) && islower (c))
+#define ISPUNCT(c) (ISASCII (c) && ispunct (c))
+#define ISSPACE(c) (ISASCII (c) && isspace (c))
+#define ISUPPER(c) (ISASCII (c) && isupper (c))
+#define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
+
+# define STREQ(s1, s2) ((strcmp (s1, s2) == 0))
+
+# if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+/* The GNU C library provides support for user-defined character classes
+ and the functions from ISO C amendement 1. */
+# ifdef CHARCLASS_NAME_MAX
+# define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX
+# else
+/* This shouldn't happen but some implementation might still have this
+ problem. Use a reasonable default value. */
+# define CHAR_CLASS_MAX_LENGTH 256
+# endif
+
+# ifdef _LIBC
+# define IS_CHAR_CLASS(string) __wctype (string)
+# else
+# define IS_CHAR_CLASS(string) wctype (string)
+# endif
+# else
+# define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */
+
+# define IS_CHAR_CLASS(string) \
+ (STREQ (string, "alpha") || STREQ (string, "upper") \
+ || STREQ (string, "lower") || STREQ (string, "digit") \
+ || STREQ (string, "alnum") || STREQ (string, "xdigit") \
+ || STREQ (string, "space") || STREQ (string, "print") \
+ || STREQ (string, "punct") || STREQ (string, "graph") \
+ || STREQ (string, "cntrl") || STREQ (string, "blank"))
+# endif
+
+/* Avoid depending on library functions or files
+ whose names are inconsistent. */
+# if !defined _LIBC && !defined getenv
+extern char *getenv ();
+# endif
# ifndef errno
extern int errno;
@@ -66,7 +139,11 @@ fnmatch (pattern, string, flags)
register char c;
/* Note that this evaluates C many times. */
-# define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
+# ifdef _LIBC
+# define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c))
+# else
+# define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
+# endif
while ((c = *p++) != '\0')
{
@@ -137,67 +214,104 @@ fnmatch (pattern, string, flags)
case '[':
{
/* Nonzero if the sense of the character class is inverted. */
+ static int posixly_correct;
register int not;
+ if (posixly_correct == 0)
+ posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
+
if (*n == '\0')
return FNM_NOMATCH;
- if ((flags & FNM_PERIOD) && *n == '.' &&
+ if (*n == '.' && (flags & FNM_PERIOD) &&
(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
return FNM_NOMATCH;
- not = (*p == '!' || *p == '^');
+ not = (*p == '!' || (posixly_correct < 0 && *p == '^'));
if (not)
++p;
c = *p++;
for (;;)
{
- register char cstart = c, cend = c;
+ int fn = FOLD (*n);
if (!(flags & FNM_NOESCAPE) && c == '\\')
{
if (*p == '\0')
return FNM_NOMATCH;
- cstart = cend = *p++;
+ c = FOLD (*p++);
+
+ if (c == fn)
+ goto matched;
}
+ else if (c == '[' && *p == ':')
+ {
+ /* Leave room for the null. */
+ char str[CHAR_CLASS_MAX_LENGTH + 1];
+ size_t c1 = 0;
+# if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+ wctype_t wt;
+# endif
- cstart = cend = FOLD (cstart);
+ for (;;)
+ {
+ if (c1 == CHAR_CLASS_MAX_LENGTH)
+ /* The name is too long and therefore the pattern
+ is ill-formed. */
+ return FNM_NOMATCH;
+
+ c = *++p;
+ if (c == ':' && p[1] == ']')
+ {
+ p += 2;
+ break;
+ }
+ str[c1++] = 'c';
+ }
+ str[c1] = '\0';
+
+# if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+ wt = IS_CHAR_CLASS (str);
+ if (wt == 0)
+ /* Invalid character class name. */
+ return FNM_NOMATCH;
- if (c == '\0')
+ if (__iswctype (__btowc (*n), wt))
+ goto matched;
+# else
+ if ((STREQ (str, "alnum") && ISALNUM (*n))
+ || (STREQ (str, "alpha") && ISALPHA (*n))
+ || (STREQ (str, "blank") && ISBLANK (*n))
+ || (STREQ (str, "cntrl") && ISCNTRL (*n))
+ || (STREQ (str, "digit") && ISDIGIT (*n))
+ || (STREQ (str, "graph") && ISGRAPH (*n))
+ || (STREQ (str, "lower") && ISLOWER (*n))
+ || (STREQ (str, "print") && ISPRINT (*n))
+ || (STREQ (str, "punct") && ISPUNCT (*n))
+ || (STREQ (str, "space") && ISSPACE (*n))
+ || (STREQ (str, "upper") && ISUPPER (*n))
+ || (STREQ (str, "xdigit") && ISXDIGIT (*n)))
+ goto matched;
+# endif
+ }
+ else if (c == '\0')
/* [ (unterminated) loses. */
return FNM_NOMATCH;
+ else if (FOLD (c) == fn)
+ goto matched;
c = *p++;
- c = FOLD (c);
-
- if ((flags & FNM_FILE_NAME) && c == '/')
- /* [/] can never match. */
- return FNM_NOMATCH;
-
- if (c == '-' && *p != ']')
- {
- cend = *p++;
- if (!(flags & FNM_NOESCAPE) && cend == '\\')
- cend = *p++;
- if (cend == '\0')
- return FNM_NOMATCH;
- cend = FOLD (cend);
-
- c = *p++;
- }
-
- if (FOLD (*n) >= cstart && FOLD (*n) <= cend)
- goto matched;
if (c == ']')
break;
}
+
if (!not)
return FNM_NOMATCH;
break;
- matched:;
+ matched:
/* Skip the rest of the [...] that already matched. */
while (c != ']')
{
@@ -213,6 +327,15 @@ fnmatch (pattern, string, flags)
/* XXX 1003.2d11 is unclear if this is right. */
++p;
}
+ else if (c == '[' && *p == ':')
+ {
+ do
+ if (*++p == '\0')
+ return FNM_NOMATCH;
+ while (*p != ':' || p[1] == ']');
+ p += 2;
+ c = *p;
+ }
}
if (not)
return FNM_NOMATCH;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 04:31:04 +0000