libc
/* $Id$ */
/* Copyright (c) 2007-2013 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libc */
/* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include "fnmatch.h"
/* functions */
/* fnmatch */
static int _fnmatch_class(char const * pattern, char const * string, int flags);
int fnmatch(char const * pattern, char const * string, int flags)
{
if(flags & (FNM_PATHNAME | FNM_PERIOD | FNM_NOESCAPE))
return FNM_NOSYS; /* FIXME implement */
if(pattern[0] == '\0')
return (string[0] == '\0') ? 0 : FNM_NOMATCH;
if(pattern[0] == '*')
{
for(; string[0] != '\0'; string++)
if(fnmatch(&pattern[1], string, flags) == 0)
return 0;
return fnmatch(&pattern[1], string, flags);
}
if(string[0] == '\0')
return FNM_NOMATCH;
if(pattern[0] == '[')
return _fnmatch_class(&pattern[1], string, flags);
if(pattern[0] == '?')
return fnmatch(&pattern[1], &string[1], flags);
if(pattern[0] == string[0])
return fnmatch(&pattern[1], &string[1], flags);
return FNM_NOMATCH;
}
static int _fnmatch_class(char const * pattern, char const * string, int flags)
{
int ret = 0;
int neg = 0;
unsigned int i;
if(pattern[0] == '!')
{
neg = 1;
pattern++;
}
if(*pattern == ']')
{
if(pattern[1] == '-' && pattern[2] != ']')
{
if (*string >= pattern[0] && *string <= pattern[2])
ret = 1;
pattern++;
}
else if (string[0] == ']')
ret = FNM_NOMATCH;
pattern++;
}
for(i = 0; pattern[i] != ']'; i++)
{
if(pattern[1] == '-' && pattern[i + 1] != ']')
{
if(*string >= pattern[i - 1]
&& string[0] <= pattern[i + 1])
ret = FNM_NOMATCH;
i++;
}
else if(pattern[i] == *string)
ret = FNM_NOMATCH;
}
return ((string[0] != '\0' ? fnmatch(&pattern[i + 1], &string[1], flags)
: 1) && neg ^ ret) ? FNM_NOMATCH : 0;
}