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/* Copyright (C) 1991-2023 Free Software Foundation, Inc.
NOTE: This source is derived from an old version taken from the GNU C
Library (glibc).
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 51 Franklin Street - Fifth Floor,
Boston, MA 02110-1301, USA. */
#ifdef HAVE_CONFIG_H
#if defined (CONFIG_BROKETS)
/* We use <config.h> instead of "config.h" so that a compilation
using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
(which it would do because it found this file in $srcdir). */
#include <config.h>
#else
#include "config.h"
#endif
#endif
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
/* This code to undef const added in libiberty. */
#ifndef __STDC__
/* This is a separate conditional since some stdc systems
reject `defined (const)'. */
#ifndef const
#define const
#endif
#endif
#include <errno.h>
#include <fnmatch.h>
#include <safe-ctype.h>
/* 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
Library, but also included in many other GNU distributions. Compiling
and linking in this code is a waste when using the GNU C library
(especially if it is a shared library). Rather than having every GNU
program understand `configure --with-gnu-libc' and omit the object files,
it is simpler to just do this in the source for each such file. */
#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
#if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
extern int errno;
#endif
/* Match STRING against the filename pattern PATTERN, returning zero if
it matches, nonzero if not. */
int
fnmatch (const char *pattern, const char *string, int flags)
{
register const char *p = pattern, *n = string;
register unsigned char c;
#define FOLD(c) ((flags & FNM_CASEFOLD) ? TOLOWER (c) : (c))
while ((c = *p++) != '\0')
{
c = FOLD (c);
switch (c)
{
case '?':
if (*n == '\0')
return FNM_NOMATCH;
else if ((flags & FNM_FILE_NAME) && *n == '/')
return FNM_NOMATCH;
else if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
return FNM_NOMATCH;
break;
case '\\':
if (!(flags & FNM_NOESCAPE))
{
c = *p++;
c = FOLD (c);
}
if (FOLD ((unsigned char)*n) != c)
return FNM_NOMATCH;
break;
case '*':
if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
return FNM_NOMATCH;
for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
if (((flags & FNM_FILE_NAME) && *n == '/') ||
(c == '?' && *n == '\0'))
return FNM_NOMATCH;
if (c == '\0')
return 0;
{
unsigned char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
c1 = FOLD (c1);
for (--p; *n != '\0'; ++n)
if ((c == '[' || FOLD ((unsigned char)*n) == c1) &&
fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
return 0;
return FNM_NOMATCH;
}
case '[':
{
/* Nonzero if the sense of the character class is inverted. */
register int negate;
if (*n == '\0')
return FNM_NOMATCH;
if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
return FNM_NOMATCH;
negate = (*p == '!' || *p == '^');
if (negate)
++p;
c = *p++;
for (;;)
{
register unsigned char cstart = c, cend = c;
if (!(flags & FNM_NOESCAPE) && c == '\\')
cstart = cend = *p++;
cstart = cend = FOLD (cstart);
if (c == '\0')
/* [ (unterminated) loses. */
return FNM_NOMATCH;
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 ((unsigned char)*n) >= cstart
&& FOLD ((unsigned char)*n) <= cend)
goto matched;
if (c == ']')
break;
}
if (!negate)
return FNM_NOMATCH;
break;
matched:;
/* Skip the rest of the [...] that already matched. */
while (c != ']')
{
if (c == '\0')
/* [... (unterminated) loses. */
return FNM_NOMATCH;
c = *p++;
if (!(flags & FNM_NOESCAPE) && c == '\\')
/* XXX 1003.2d11 is unclear if this is right. */
++p;
}
if (negate)
return FNM_NOMATCH;
}
break;
default:
if (c != FOLD ((unsigned char)*n))
return FNM_NOMATCH;
}
++n;
}
if (*n == '\0')
return 0;
if ((flags & FNM_LEADING_DIR) && *n == '/')
/* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
return 0;
return FNM_NOMATCH;
}
#endif /* _LIBC or not __GNU_LIBRARY__. */
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