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diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common.php
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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;
+    }
+}
+