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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to version 1.0 of the Zend Framework
* license, that is bundled with this package in the file LICENSE, and
* is available through the world-wide-web at the following URL:
* http://www.zend.com/license/framework/1_0.txt. If you did not receive
* a copy of the Zend Framework license and are unable to obtain it
* through the world-wide-web, please send a note to license@zend.com
* so we can mail you a copy immediately.
*
* @package Zend_Search_Lucene
* @subpackage Analysis
* @copyright Copyright (c) 2005-2006 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://www.zend.com/license/framework/1_0.txt Zend Framework License version 1.0
*/
/** Zend_Search_Lucene_Analysis_Analyzer */
require_once 'Zend/Search/Lucene/Analysis/Analyzer.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
*
* @package Zend_Search_Lucene
* @subpackage Analysis
* @copyright Copyright (c) 2005-2006 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://www.zend.com/license/framework/1_0.txt Zend Framework License version 1.0
*/
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.
*
* @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);
}
return $token;
}
}
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