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att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libast/comp/fnmatch.c
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                  David Korn <[email protected]>                   *

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*                   Phong Vo <[email protected]>                    *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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 * fnmatch implementation

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 */

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#include <ast_lib.h>

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#include <ast.h>

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#include <regex.h>

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#include <fnmatch.h>

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typedef struct

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{

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	int	fnm;		/* fnmatch flag			*/

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	int	reg;		/* regex flag			*/

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} Map_t;

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static const Map_t	map[] =

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{

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	FNM_AUGMENTED,	REG_AUGMENTED,

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	FNM_ICASE,	REG_ICASE,

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	FNM_NOESCAPE,	REG_SHELL_ESCAPED,

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	FNM_PATHNAME,	REG_SHELL_PATH,

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	FNM_PERIOD,	REG_SHELL_DOT,

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};

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#if defined(__EXPORT__)

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#define extern	__EXPORT__

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#endif

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extern int

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fnmatch(const char* pattern, const char* subject, register int flags)

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{

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	register int		reflags = REG_SHELL|REG_LEFT;

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	register const Map_t*	mp;

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	regex_t			re;

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	regmatch_t		match;

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	for (mp = map; mp < &map[elementsof(map)]; mp++)

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		if (flags & mp->fnm)

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			reflags |= mp->reg;

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	if (flags & FNM_LEADING_DIR)

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	{

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		if (!(reflags = regcomp(&re, pattern, reflags)))

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		{

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			reflags = regexec(&re, subject, 1, &match, 0);

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			regfree(&re);

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			if (!reflags && (reflags = subject[match.rm_eo]))

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				reflags = reflags == '/' ? 0 : FNM_NOMATCH;

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		}

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	}

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	else if (!(reflags = regcomp(&re, pattern, reflags|REG_RIGHT)))

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	{

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		reflags = regexec(&re, subject, 0, NiL, 0);

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		regfree(&re);

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	}

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	return reflags;

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}

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