95 Zeilen
2.7 KiB
PHP
95 Zeilen
2.7 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Regroups several readers to make them appear as a single one
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*
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* PHP versions 4 and 5
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330,Boston,MA 02111-1307 USA
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*
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* @category File Formats
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* @package File_Archive
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* @author Vincent Lascaux <vincentlascaux@php.net>
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* @copyright 1997-2005 The PHP Group
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @version CVS: $Id: Multi.php 2 2010-11-23 14:32:26Z oldperl $
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* @link http://pear.php.net/package/File_Archive
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*/
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require_once "File/Archive/Reader/Relay.php";
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/**
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* Regroups several readers to make them appear as a single one
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*/
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class File_Archive_Reader_Multi extends File_Archive_Reader_Relay
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{
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/**
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* @var Array All the sources regrouped in this reader
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* @access private
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*/
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var $sources = array();
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/**
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* @var Int Index of the source being read currently
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* @access private
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*/
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var $currentIndex = 0;
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function File_Archive_Reader_Multi()
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{
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parent::File_Archive_Reader_Relay($tmp = null);
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}
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/**
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* Add a new reader to the list of readers
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* @param File_Archive_Reader $source The source to add
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*/
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function addSource(&$source)
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{
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$this->sources[] =& $source;
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}
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/**
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* @see File_Archive_Reader::next()
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*/
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function next()
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{
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while (array_key_exists($this->currentIndex, $this->sources)) {
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$this->source =& $this->sources[$this->currentIndex];
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if (($error = $this->source->next()) === false) {
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$error = $this->source->close();
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if (PEAR::isError($error)) {
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return $error;
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}
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$this->currentIndex++;
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} else {
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return $error;
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}
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}
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return false;
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}
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/**
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* @see File_Archive_Reader::close()
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*/
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function close()
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{
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$error = parent::close();
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$this->currentIndex = 0;
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return $error;
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}
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}
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?>
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