/*

 * POSIX library for Lua 5.1, 5.2 & 5.3.

 * (c) Gary V. Vaughan <gary@vaughan.pe>, 2013-2015

 * (c) Reuben Thomas <rrt@sc3d.org> 2010-2013

 * (c) Natanael Copa <natanael.copa@gmail.com> 2008-2010

 * Clean up and bug fixes by Leo Razoumov <slonik.az@gmail.com> 2006-10-11

 * Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> 07 Apr 2006 23:17:49

 * Based on original by Claudio Terra for Lua 3.x.

 * With contributions by Roberto Ierusalimschy.

 * With documentation from Steve Donovan 2012

 */

/***

 Filename matching.

 Functions and constants for matching known filenames against shell-style

 pattern strings.

@see posix.glob

@module posix.fnmatch

*/

#include <config.h>

#include <fnmatch.h>

#include "_helpers.c"

/***

Match a filename against a shell pattern.

@function fnmatch

@string pat shell pattern

@string name filename

@int[opt=0] flags optional

@treturn[1] int `0`, if successful

@treturn[2] int `FNM_NOMATCH`

@treturn[3] int some other non-zero integer if fnmatch itself failed

@see fnmatch(3)

*/

static int

Pfnmatch(lua_State *L)

{

	const char *pattern = luaL_checkstring(L, 1);

	const char *string = luaL_checkstring(L, 2);

	int flags = optint(L, 3, 0);

	int res;

	checknargs(L, 3);

	return pushintresult(fnmatch(pattern, string, flags));

}

static const luaL_Reg posix_fnmatch_fns[] =

{

	LPOSIX_FUNC( Pfnmatch		),

	{NULL, NULL}

};

/***

Constants.

@section constants

*/

/***

Fnmatch constants.

Any constants not available in the underlying system will be `nil` valued.

@table posix.fnmatch

@int FNM_PATHNAME slashes in pathname must be matched by slash in pattern

@int FNM_NOESCAPE disable backslash escaping

@int FNM_NOMATCH match failed

@int FNM_PERIOD periods in pathname must be matched by period in pattern

@usage

  -- Print fnmatch constants supported on this host.

  for name, value in pairs (require "posix.fnmatch") do

    if type (value) == "number" then

      print (name, value)

     end

  end

*/

LUALIB_API int

luaopen_posix_fnmatch(lua_State *L)

{

	luaL_register(L, "posix.fnmatch", posix_fnmatch_fns);

	lua_pushliteral(L, "posix.fnmatch for " LUA_VERSION " / " PACKAGE_STRING);

	lua_setfield(L, -2, "version");

	/* from fnmatch.h */

	LPOSIX_CONST( FNM_PATHNAME	);

	LPOSIX_CONST( FNM_NOESCAPE	);

	LPOSIX_CONST( FNM_NOMATCH	);

	LPOSIX_CONST( FNM_PERIOD	);

	return 1;

}