1<?php
2/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
3
4/**
5 * Evaluates to true if the index is in a given array of indexes
6 * The array has the indexes in key (so you may want to call
7 * array_flip if your array has indexes as value)
8 *
9 * PHP versions 4 and 5
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330,Boston,MA 02111-1307 USA
24 *
25 * @category   File Formats
26 * @package    File_Archive
27 * @author     Vincent Lascaux <vincentlascaux@php.net>
28 * @copyright  1997-2005 The PHP Group
29 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL
30 * @version    CVS: $Id: Index.php,v 1.1 2005/05/30 19:44:53 vincentlascaux Exp $
31 * @link       http://pear.php.net/package/File_Archive
32 */
33
34require_once "File/Archive/Predicate.php";
35
36/**
37 * Evaluates to true if the index is in a given array of indexes
38 * The array has the indexes in key (so you may want to call
39 * array_flip if your array has indexes as value)
40 */
41class File_Archive_Predicate_Index extends File_Archive_Predicate
42{
43    var $indexes;
44    var $pos = 0;
45
46    /**
47     * @param $extensions array or comma separated string of allowed extensions
48     */
49    function File_Archive_Predicate_Index($indexes)
50    {
51        $this->indexes = $indexes;
52    }
53    /**
54     * @see File_Archive_Predicate::isTrue()
55     */
56    function isTrue(&$source)
57    {
58        return isset($this->indexes[$this->pos++]);
59    }
60}
61
62?>