File indexing completed on 2025-01-19 05:21:25

 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Search_Lucene
  * @subpackage Analysis
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 
 /** Define constant used to provide correct file processing order    */
 /** @todo Section should be removed with ZF 2.0 release as obsolete  */
 if (!defined('ZEND_SEARCH_LUCENE_COMMON_ANALYZER_PROCESSED')) {
     define('ZEND_SEARCH_LUCENE_COMMON_ANALYZER_PROCESSED', true);
 }
 
 
 /** Zend_Search_Lucene_Analysis_Analyzer */
 // require_once 'Zend/Search/Lucene/Analysis/Analyzer.php';
 
 /** Zend_Search_Lucene_Analysis_Token */
 // require_once 'Zend/Search/Lucene/Analysis/Token.php';
 
 /** Zend_Search_Lucene_Analysis_TokenFilter */
 // require_once 'Zend/Search/Lucene/Analysis/TokenFilter.php';
 
 
 /**
  * Common implementation of the Zend_Search_Lucene_Analysis_Analyzer interface.
  * There are several standard standard subclasses provided by Zend_Search_Lucene/Analysis
  * subpackage: Zend_Search_Lucene_Analysis_Analyzer_Common_Text, ZSearchHTMLAnalyzer, ZSearchXMLAnalyzer.
  *
  * @todo ZSearchHTMLAnalyzer and ZSearchXMLAnalyzer implementation
  *
  * @category   Zend
  * @package    Zend_Search_Lucene
  * @subpackage Analysis
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 abstract class Zend_Search_Lucene_Analysis_Analyzer_Common extends Zend_Search_Lucene_Analysis_Analyzer
 {
     /**
      * The set of Token filters applied to the Token stream.
      * Array of Zend_Search_Lucene_Analysis_TokenFilter objects.
      *
      * @var array
      */
     private $_filters = array();
 
     /**
      * Add Token filter to the Analyzer
      *
      * @param Zend_Search_Lucene_Analysis_TokenFilter $filter
      */
     public function addFilter(Zend_Search_Lucene_Analysis_TokenFilter $filter)
     {
         $this->_filters[] = $filter;
     }
 
     /**
      * Apply filters to the token. Can return null when the token was removed.
      *
      * @param Zend_Search_Lucene_Analysis_Token $token
      * @return Zend_Search_Lucene_Analysis_Token
      */
     public function normalize(Zend_Search_Lucene_Analysis_Token $token)
     {
         foreach ($this->_filters as $filter) {
             $token = $filter->normalize($token);
 
             // resulting token can be null if the filter removes it
             if ($token === null) {
                 return null;
             }
         }
 
         return $token;
     }
 }