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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to version 1.0 of the Zend Framework
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* license, that is bundled with this package in the file LICENSE, and
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* is available through the world-wide-web at the following URL:
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* http://www.zend.com/license/framework/1_0.txt. If you did not receive
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* a copy of the Zend Framework license and are unable to obtain it
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* through the world-wide-web, please send a note to license@zend.com
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* so we can mail you a copy immediately.
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*
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* @package Zend_Search_Lucene
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* @subpackage Analysis
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* @copyright Copyright (c) 2005-2006 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://www.zend.com/license/framework/1_0.txt Zend Framework License version 1.0
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*/
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/** Zend_Search_Lucene_Analysis_Analyzer */
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require_once 'Zend/Search/Lucene/Analysis/Analyzer.php';
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/**
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* Common implementation of the Zend_Search_Lucene_Analysis_Analyzer interface.
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* There are several standard standard subclasses provided by Zend_Search_Lucene/Analysis
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* subpackage: Zend_Search_Lucene_Analysis_Analyzer_Common_Text, ZSearchHTMLAnalyzer, ZSearchXMLAnalyzer.
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*
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* @todo ZSearchHTMLAnalyzer and ZSearchXMLAnalyzer implementation
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*
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* @package Zend_Search_Lucene
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* @subpackage Analysis
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* @copyright Copyright (c) 2005-2006 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://www.zend.com/license/framework/1_0.txt Zend Framework License version 1.0
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*/
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abstract class Zend_Search_Lucene_Analysis_Analyzer_Common extends Zend_Search_Lucene_Analysis_Analyzer
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{
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/**
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* The set of Token filters applied to the Token stream.
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* Array of Zend_Search_Lucene_Analysis_TokenFilter objects.
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*
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* @var array
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*/
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private $_filters = array();
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/**
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* Add Token filter to the Analyzer
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*
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* @param Zend_Search_Lucene_Analysis_TokenFilter $filter
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*/
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public function addFilter(Zend_Search_Lucene_Analysis_TokenFilter $filter)
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{
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$this->_filters[] = $filter;
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}
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/**
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* Apply filters to the token.
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*
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* @param Zend_Search_Lucene_Analysis_Token $token
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* @return Zend_Search_Lucene_Analysis_Token
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*/
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public function normalize(Zend_Search_Lucene_Analysis_Token $token)
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{
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foreach ($this->_filters as $filter) {
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$token = $filter->normalize($token);
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}
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return $token;
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}
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}
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