Add search to quickstart demo.

34 files changed, 5886 insertions, 0 deletions

diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer.php
new file mode 100644
index 00000000..8e234c16
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer.php
@@ -0,0 +1,94 @@
+<?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_Token */
+require_once 'Zend/Search/Lucene/Analysis/Token.php';
+
+/** Zend_Search_Lucene_Analysis_Analyzer_Common_Text */
+require_once 'Zend/Search/Lucene/Analysis/Analyzer/Common/Text.php';
+
+/** Zend_Search_Lucene_Analysis_Analyzer_Common_Text_CaseInsensitive */
+require_once 'Zend/Search/Lucene/Analysis/Analyzer/Common/Text/CaseInsensitive.php';
+
+
+
+/**
+ * An Analyzer is used to analyze text.
+ * It thus represents a policy for extracting index terms from text.
+ *
+ * Note:
+ * Lucene Java implementation is oriented to streams. It provides effective work
+ * with a huge documents (more then 20Mb).
+ * But engine itself is not oriented such documents.
+ * Thus Zend_Search_Lucene analysis API works with data strings and sets (arrays).
+ *
+ * @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
+{
+    /**
+     * The Analyzer implementation used by default.
+     *
+     * @var Zend_Search_Lucene_Analysis_Analyzer
+     */
+    static private $_defaultImpl;
+
+    /**
+     * Tokenize text to a terms
+     * Returns array of Zend_Search_Lucene_Analysis_Token objects
+     *
+     * @param string $data
+     * @return array
+     */
+    abstract public function tokenize($data);
+
+
+    /**
+     * Set the default Analyzer implementation used by indexing code.
+     *
+     * @param Zend_Search_Lucene_Analysis_Analyzer $similarity
+     */
+    static public function setDefault(Zend_Search_Lucene_Analysis_Analyzer $analyzer)
+    {
+        self::$_defaultImpl = $analyzer;
+    }
+
+
+    /**
+     * Return the default Analyzer implementation used by indexing code.
+     *
+     * @return Zend_Search_Lucene_Analysis_Analyzer
+     */
+    static public function getDefault()
+    {
+        if (!self::$_defaultImpl instanceof Zend_Search_Lucene_Analysis_Analyzer) {
+            self::$_defaultImpl = new Zend_Search_Lucene_Analysis_Analyzer_Common_Text_CaseInsensitive();
+        }
+
+        return self::$_defaultImpl;
+    }
+
+}
+
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
new file mode 100644
index 00000000..5c61e5b5
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common.php
@@ -0,0 +1,73 @@
+<?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;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common/Text.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common/Text.php
new file mode 100644
index 00000000..2a80c1f8
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common/Text.php
@@ -0,0 +1,76 @@
+<?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_Common */
+require_once 'Zend/Search/Lucene/Analysis/Analyzer/Common.php';
+
+
+/**
+ * @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
+ */
+
+class Zend_Search_Lucene_Analysis_Analyzer_Common_Text extends Zend_Search_Lucene_Analysis_Analyzer_Common
+{
+    /**
+     * Tokenize text to a terms
+     * Returns array of Zend_Search_Lucene_Analysis_Token objects
+     *
+     * @param string $data
+     * @return array
+     */
+    public function tokenize($data)
+    {
+        $tokenStream = array();
+
+        $position = 0;
+        while ($position < strlen($data)) {
+            // skip white space
+            while ($position < strlen($data) && !ctype_alpha( $data{$position} )) {
+                $position++;
+            }
+
+            $termStartPosition = $position;
+
+            // read token
+            while ($position < strlen($data) && ctype_alpha( $data{$position} )) {
+                $position++;
+            }
+
+            // Empty token, end of stream.
+            if ($position == $termStartPosition) {
+                break;
+            }
+
+            $token = new Zend_Search_Lucene_Analysis_Token(substr($data,
+                                             $termStartPosition,
+                                             $position-$termStartPosition),
+                                      $termStartPosition,
+                                      $position);
+            $tokenStream[] = $this->normalize($token);
+        }
+
+        return $tokenStream;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common/Text/CaseInsensitive.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common/Text/CaseInsensitive.php
new file mode 100644
index 00000000..d77e38d5
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Analyzer/Common/Text/CaseInsensitive.php
@@ -0,0 +1,43 @@
+<?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_Common_Text */
+require_once 'Zend/Search/Lucene/Analysis/Analyzer/Common/Text.php';
+
+/** Zend_Search_Lucene_Analysis_TokenFilter_LowerCase */
+require_once 'Zend/Search/Lucene/Analysis/TokenFilter/LowerCase.php';
+
+
+/**
+ * @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
+ */
+
+class Zend_Search_Lucene_Analysis_Analyzer_Common_Text_CaseInsensitive extends Zend_Search_Lucene_Analysis_Analyzer_Common_Text
+{
+    public function __construct()
+    {
+        $this->addFilter(new Zend_Search_Lucene_Analysis_TokenFilter_LowerCase());
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Token.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Token.php
new file mode 100644
index 00000000..a60d5d96
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/Token.php
@@ -0,0 +1,170 @@
+<?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 document
+ * @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
+ */
+
+
+/**
+ *
+ * @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
+ */
+class Zend_Search_Lucene_Analysis_Token
+{
+    /**
+     * The text of the term.
+     *
+     * @var string
+     */
+    private $_termText;
+
+    /**
+     * Start in source text.
+     *
+     * @var integer
+     */
+    private $_startOffset;
+
+    /**
+     * End in source text
+     *
+     * @var integer
+     */
+    private $_endOffset;
+
+    /**
+     * Lexical type.
+     *
+     * @var string
+     */
+    private $_type;
+
+    /**
+     * The position of this token relative to the previous Token.
+     *
+     * The default value is one.
+     *
+     * Some common uses for this are:
+     * Set it to zero to put multiple terms in the same position.  This is
+     * useful if, e.g., a word has multiple stems.  Searches for phrases
+     * including either stem will match.  In this case, all but the first stem's
+     * increment should be set to zero: the increment of the first instance
+     * should be one.  Repeating a token with an increment of zero can also be
+     * used to boost the scores of matches on that token.
+     *
+     * Set it to values greater than one to inhibit exact phrase matches.
+     * If, for example, one does not want phrases to match across removed stop
+     * words, then one could build a stop word filter that removes stop words and
+     * also sets the increment to the number of stop words removed before each
+     * non-stop word.  Then exact phrase queries will only match when the terms
+     * occur with no intervening stop words.
+     *
+     * @var integer
+     */
+    private $_positionIncrement;
+
+
+    /**
+     * Object constructor
+     *
+     * @param string  $text
+     * @param integer $start
+     * @param integer $end
+     * @param string  $type
+     */
+    public function __construct($text, $start, $end, $type = 'word' )
+    {
+        $this->_termText    = $text;
+        $this->_startOffset = $start;
+        $this->_endOffset   = $end;
+        $this->_type        = $type;
+
+        $this->_positionIncrement = 1;
+    }
+
+
+    /**
+     * positionIncrement setter
+     *
+     * @param integer $positionIncrement
+     */
+    public function setPositionIncrement($positionIncrement)
+    {
+        $this->_positionIncrement = $positionIncrement;
+    }
+
+    /**
+     * Returns the position increment of this Token.
+     *
+     * @return integer
+     */
+    public function getPositionIncrement()
+    {
+        return $this->_positionIncrement;
+    }
+
+    /**
+     * Returns the Token's term text.
+     *
+     * @return string
+     */
+    public function getTermText()
+    {
+        return $this->_termText;
+    }
+
+    /**
+     * Returns this Token's starting offset, the position of the first character
+     * corresponding to this token in the source text.
+     *
+     * Note:
+     * The difference between getEndOffset() and getStartOffset() may not be equal
+     * to strlen(Zend_Search_Lucene_Analysis_Token::getTermText()), as the term text may have been altered
+     * by a stemmer or some other filter.
+     *
+     * @return integer
+     */
+    public function getStartOffset()
+    {
+        return $this->_startOffset;
+    }
+
+    /**
+     * Returns this Token's ending offset, one greater than the position of the
+     * last character corresponding to this token in the source text.
+     *
+     * @return integer
+     */
+    public function getEndOffset()
+    {
+        return $this->_endOffset;
+    }
+
+    /**
+     * Returns this Token's lexical type.  Defaults to 'word'.
+     *
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->_type;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/TokenFilter.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/TokenFilter.php
new file mode 100644
index 00000000..9ea5125f
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/TokenFilter.php
@@ -0,0 +1,45 @@
+<?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_Token */
+require_once 'Zend/Search/Lucene/Analysis/Token.php';
+
+
+/**
+ * Token filter converts (normalizes) Token ore removes it from a token stream.
+ *
+ * @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_TokenFilter
+{
+    /**
+     * Normalize Token or remove it (if null is returned)
+     *
+     * @param Zend_Search_Lucene_Analysis_Token $srcToken
+     * @return Zend_Search_Lucene_Analysis_Token
+     */
+    abstract public function normalize(Zend_Search_Lucene_Analysis_Token $srcToken);
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/TokenFilter/LowerCase.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/TokenFilter/LowerCase.php
new file mode 100644
index 00000000..53585e21
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Analysis/TokenFilter/LowerCase.php
@@ -0,0 +1,55 @@
+<?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_TokenFilter */
+require_once 'Zend/Search/Lucene/Analysis/TokenFilter.php';
+
+
+/**
+ * Lower case Token filter.
+ *
+ * @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
+ */
+
+class Zend_Search_Lucene_Analysis_TokenFilter_LowerCase extends Zend_Search_Lucene_Analysis_TokenFilter
+{
+    /**
+     * Normalize Token or remove it (if null is returned)
+     *
+     * @param Zend_Search_Lucene_Analysis_Token $srcToken
+     * @return Zend_Search_Lucene_Analysis_Token
+     */
+    public function normalize(Zend_Search_Lucene_Analysis_Token $srcToken)
+    {
+        $newToken = new Zend_Search_Lucene_Analysis_Token(strtolower( $srcToken->getTermText() ),
+                                     $srcToken->getStartOffset(),
+                                     $srcToken->getEndOffset(),
+                                     $srcToken->getType());
+
+        $newToken->setPositionIncrement($srcToken->getPositionIncrement());
+
+        return $newToken;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Document.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Document.php
new file mode 100644
index 00000000..29c0c2d9
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Document.php
@@ -0,0 +1,109 @@
+<?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 document
+ * @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_Field */
+require_once 'Zend/Search/Lucene/Field.php';
+
+
+/**
+ * A Document is a set of fields. Each field has a name and a textual value.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage document
+ * @copyright  Copyright (c) 2005-2006 Zend Technologies Inc. (http://www.zend.com)
+ * @license    Zend Framework License version 1.0
+ */
+class Zend_Search_Lucene_Document
+{
+
+    /**
+     * Associative array Zend_Search_Lucene_Field objects where the keys to the
+     * array are the names of the fields.
+     *
+     * @var array
+     */
+    protected $_fields = array();
+
+    public $boost = 1.0;
+
+
+    /**
+     * Proxy method for getFieldValue(), provides more convenient access to
+     * the string value of a field.
+     *
+     * @param  $offset
+     * @return string
+     */
+	public function __get($offset)
+	{
+		return $this->getFieldValue($offset);
+	}
+
+
+    /**
+     * Add a field object to this document.
+     *
+     * @param Zend_Search_Lucene_Field $field
+     */
+    public function addField(Zend_Search_Lucene_Field $field)
+    {
+        $this->_fields[$field->name] = $field;
+    }
+
+
+    /**
+     * Return an array with the names of the fields in this document.
+     *
+     * @return array
+     */
+    public function getFieldNames()
+    {
+    	return array_keys($this->_fields);
+    }
+
+
+    /**
+     * Returns Zend_Search_Lucene_Field object for a named field in this document.
+     *
+     * @param string $fieldName
+     * @return Zend_Search_Lucene_Field
+     */
+    public function getField($fieldName)
+    {
+		if (!array_key_exists($fieldName, $this->_fields)) {
+			throw new Zend_Search_Lucene_Exception("Field name \"$fieldName\" not found in document.");
+		}
+        return $this->_fields[$fieldName];
+    }
+
+
+    /**
+     * Returns the string value of a named field in this document.
+     *
+     * @see __get()
+     * @return string
+     */
+    public function getFieldValue($fieldName)
+    {
+    	return $this->getField($fieldName)->stringValue;
+    }
+
+}
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Exception.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Exception.php
new file mode 100644
index 00000000..5f12c5f6
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Exception.php
@@ -0,0 +1,34 @@
+<?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
+ * @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
+ */
+
+
+/**
+ * Framework base exception
+ */
+require_once 'Zend/Search/Exception.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @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
+ */
+class Zend_Search_Lucene_Exception extends Zend_Search_Exception
+{}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Field.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Field.php
new file mode 100644
index 00000000..cce6bfce
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Field.php
@@ -0,0 +1,134 @@
+<?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 document
+ * @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
+ */
+
+
+/**
+ * A field is a section of a Document.  Each field has two parts,
+ * a name and a value. Values may be free text or they may be atomic
+ * keywords, which are not further processed. Such keywords may
+ * be used to represent dates, urls, etc.  Fields are optionally
+ * stored in the index, so that they may be returned with hits
+ * on the document.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage document
+ * @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
+ */
+class Zend_Search_Lucene_Field
+{
+    public $kind;
+
+    public $name        = 'body';
+    public $stringValue = null;
+    public $isStored    = false;
+    public $isIndexed   = true;
+    public $isTokenized = true;
+    public $isBinary    = false;
+
+    public $storeTermVector = false;
+
+    public $boost = 1.0;
+
+    public function __construct($name, $stringValue, $isStored, $isIndexed, $isTokenized, $isBinary = false)
+    {
+        $this->name        = $name;
+        $this->stringValue = $stringValue;
+        $this->isStored    = $isStored;
+        $this->isIndexed   = $isIndexed;
+        $this->isTokenized = $isTokenized;
+        $this->isBinary    = $isBinary;
+
+        $this->storeTermVector = false;
+        $this->boost           = 1.0;
+    }
+
+
+    /**
+     * Constructs a String-valued Field that is not tokenized, but is indexed
+     * and stored.  Useful for non-text fields, e.g. date or url.
+     *
+     * @param string $name
+     * @param string $value
+     * @return Zend_Search_Lucene_Field
+     */
+    static public function Keyword($name, $value)
+    {
+        return new self($name, $value, true, true, false);
+    }
+
+
+    /**
+     * Constructs a String-valued Field that is not tokenized nor indexed,
+     * but is stored in the index, for return with hits.
+     *
+     * @param string $name
+     * @param string $value
+     * @return Zend_Search_Lucene_Field
+     */
+    static public function UnIndexed($name, $value)
+    {
+        return new self($name, $value, true, false, false);
+    }
+
+
+    /**
+     * Constructs a Binary String valued Field that is not tokenized nor indexed,
+     * but is stored in the index, for return with hits.
+     *
+     * @param string $name
+     * @param string $value
+     * @return Zend_Search_Lucene_Field
+     */
+    static public function Binary($name, $value)
+    {
+        return new self($name, $value, true, false, false, true);
+    }
+
+    /**
+     * Constructs a String-valued Field that is tokenized and indexed,
+     * and is stored in the index, for return with hits.  Useful for short text
+     * fields, like "title" or "subject". Term vector will not be stored for this field.
+     *
+     * @param string $name
+     * @param string $value
+     * @return Zend_Search_Lucene_Field
+     */
+    static public function Text($name, $value)
+    {
+        return new self($name, $value, true, true, true);
+    }
+
+
+    /**
+     * Constructs a String-valued Field that is tokenized and indexed,
+     * but that is not stored in the index.
+     *
+     * @param string $name
+     * @param string $value
+     * @return Zend_Search_Lucene_Field
+     */
+    static public function UnStored($name, $value)
+    {
+        return new self($name, $value, false, true, true);
+    }
+
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Index/FieldInfo.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/FieldInfo.php
new file mode 100644
index 00000000..eaca4ecf
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/FieldInfo.php
@@ -0,0 +1,43 @@
+<?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 Index
+ * @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
+ */
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Index
+ * @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
+ */
+class Zend_Search_Lucene_Index_FieldInfo
+{
+    public $name;
+    public $isIndexed;
+    public $number;
+    public $storeTermVector;
+
+    public function __construct( $name, $isIndexed, $number, $storeTermVector )
+    {
+        $this->name            = $name;
+        $this->isIndexed       = $isIndexed;
+        $this->number          = $number;
+        $this->storeTermVector = $storeTermVector;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Index/SegmentInfo.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/SegmentInfo.php
new file mode 100644
index 00000000..f5c596a0
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/SegmentInfo.php
@@ -0,0 +1,412 @@
+<?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 Index
+ * @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_Exception */
+require_once 'Zend/Search/Lucene/Exception.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Index
+ * @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
+ */
+class Zend_Search_Lucene_Index_SegmentInfo
+{
+    /**
+     * Number of docs in a segment
+     *
+     * @var integer
+     */
+    private $_docCount;
+
+    /**
+     * Segment name
+     *
+     * @var string
+     */
+    private $_name;
+
+    /**
+     * Term Dictionary Index
+     * Array of the Zend_Search_Lucene_Index_Term objects
+     * Corresponding Zend_Search_Lucene_Index_TermInfo object stored in the $_termDictionaryInfos
+     *
+     * @var array
+     */
+    private $_termDictionary;
+
+    /**
+     * Term Dictionary Index TermInfos
+     * Array of the Zend_Search_Lucene_Index_TermInfo objects
+     *
+     * @var array
+     */
+    private $_termDictionaryInfos;
+
+    /**
+     * Segment fields. Array of Zend_Search_Lucene_Index_FieldInfo objects for this segment
+     *
+     * @var array
+     */
+    private $_fields;
+
+    /**
+     * Field positions in a dictionary.
+     * (Term dictionary contains filelds ordered by names)
+     *
+     * @var array
+     */
+    private $_fieldsDicPositions;
+
+
+    /**
+     * Associative array where the key is the file name and the value is data offset
+     * in a compound segment file (.csf).
+     *
+     * @var array
+     */
+    private $_segFiles;
+
+    /**
+     * File system adapter.
+     *
+     * @var Zend_Search_Lucene_Storage_Directory_Filesystem
+     */
+    private $_directory;
+
+    /**
+     * Normalization factors.
+     * An array fieldName => normVector
+     * normVector is a binary string.
+     * Each byte corresponds to an indexed document in a segment and
+     * encodes normalization factor (float value, encoded by
+     * Zend_Search_Lucene_Search_Similarity::encodeNorm())
+     *
+     * @var array
+     */
+    private $_norms = array();
+
+    /**
+     * Zend_Search_Lucene_Index_SegmentInfo constructor needs Segmentname,
+     * Documents count and Directory as a parameter.
+     *
+     * @param string $name
+     * @param integer $docCount
+     * @param Zend_Search_Lucene_Storage_Directory $directory
+     */
+    public function __construct($name, $docCount, $directory)
+    {
+        $this->_name = $name;
+        $this->_docCount = $docCount;
+        $this->_directory = $directory;
+        $this->_termDictionary = null;
+
+        $this->_segFiles = array();
+        $cfsFile = $this->_directory->getFileObject($name . '.cfs');
+        $segFilesCount = $cfsFile->readVInt();
+
+        for ($count = 0; $count < $segFilesCount; $count++) {
+            $dataOffset = $cfsFile->readLong();
+            $fileName = $cfsFile->readString();
+            $this->_segFiles[$fileName] = $dataOffset;
+        }
+
+        $fnmFile = $this->openCompoundFile('.fnm');
+        $fieldsCount = $fnmFile->readVInt();
+        $fieldNames = array();
+        $fieldNums  = array();
+        $this->_fields = array();
+        for ($count=0; $count < $fieldsCount; $count++) {
+            $fieldName = $fnmFile->readString();
+            $fieldBits = $fnmFile->readByte();
+            $this->_fields[$count] = new Zend_Search_Lucene_Index_FieldInfo($fieldName,
+                                                                            $fieldBits & 1,
+                                                                            $count,
+                                                                            $fieldBits & 2 );
+            if ($fieldBits & 0x10) {
+                // norms are omitted for the indexed field
+                $this->_norms[$count] = str_repeat(chr(Zend_Search_Lucene_Search_Similarity::encodeNorm(1.0)), $docCount);
+            }
+
+            $fieldNums[$count]  = $count;
+            $fieldNames[$count] = $fieldName;
+        }
+        array_multisort($fieldNames, SORT_ASC, SORT_REGULAR, $fieldNums);
+        $this->_fieldsDicPositions = array_flip($fieldNums);
+    }
+
+    /**
+     * Opens index file stoted within compound index file
+     *
+     * @param string $extension
+     * @throws Zend_Search_Lucene_Exception
+     * @return Zend_Search_Lucene_Storage_File
+     */
+    public function openCompoundFile($extension)
+    {
+        $filename = $this->_name . $extension;
+
+        if( !isset($this->_segFiles[ $filename ]) ) {
+            throw new Zend_Search_Lucene_Exception('Index compound file doesn\'t contain '
+                                       . $filename . ' file.' );
+        }
+
+        $file = $this->_directory->getFileObject( $this->_name.".cfs" );
+        $file->seek( $this->_segFiles[ $filename ] );
+        return $file;
+    }
+
+    /**
+     * Returns field index or -1 if field is not found
+     *
+     * @param string $fieldName
+     * @return integer
+     */
+    public function getFieldNum($fieldName)
+    {
+        foreach( $this->_fields as $field ) {
+            if( $field->name == $fieldName ) {
+                return $field->number;
+            }
+        }
+
+        return -1;
+    }
+
+    /**
+     * Returns field info for specified field
+     *
+     * @param integer $fieldNum
+     * @return ZSearchFieldInfo
+     */
+    public function getField($fieldNum)
+    {
+        return $this->_fields[$fieldNum];
+    }
+
+    /**
+     * Returns array of fields.
+     * if $indexed parameter is true, then returns only indexed fields.
+     *
+     * @param boolean $indexed
+     * @return array
+     */
+    public function getFields($indexed = false)
+    {
+        $result = array();
+        foreach( $this->_fields as $field ) {
+            if( (!$indexed) || $field->isIndexed ) {
+                $result[ $field->name ] = $field->name;
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Returns the total number of documents in this segment.
+     *
+     * @return integer
+     */
+    public function count()
+    {
+        return $this->_docCount;
+    }
+
+
+    /**
+     * Loads Term dictionary from TermInfoIndex file
+     */
+    protected function _loadDictionary()
+    {
+        if ($this->_termDictionary !== null) {
+            return;
+        }
+
+        $this->_termDictionary = array();
+        $this->_termDictionaryInfos = array();
+
+        $tiiFile = $this->openCompoundFile('.tii');
+        $tiVersion = $tiiFile->readInt();
+        if ($tiVersion != (int)0xFFFFFFFE) {
+            throw new Zend_Search_Lucene_Exception('Wrong TermInfoIndexFile file format');
+        }
+
+        $indexTermCount = $tiiFile->readLong();
+                          $tiiFile->readInt();  // IndexInterval
+        $skipInterval   = $tiiFile->readInt();
+
+        $prevTerm     = '';
+        $freqPointer  =  0;
+        $proxPointer  =  0;
+        $indexPointer =  0;
+        for ($count = 0; $count < $indexTermCount; $count++) {
+            $termPrefixLength = $tiiFile->readVInt();
+            $termSuffix       = $tiiFile->readString();
+            $termValue        = substr( $prevTerm, 0, $termPrefixLength ) . $termSuffix;
+
+            $termFieldNum     = $tiiFile->readVInt();
+            $docFreq          = $tiiFile->readVInt();
+            $freqPointer     += $tiiFile->readVInt();
+            $proxPointer     += $tiiFile->readVInt();
+            if( $docFreq >= $skipInterval ) {
+                $skipDelta = $tiiFile->readVInt();
+            } else {
+                $skipDelta = 0;
+            }
+
+            $indexPointer += $tiiFile->readVInt();
+
+            $this->_termDictionary[] =  new Zend_Search_Lucene_Index_Term($termValue,$termFieldNum);
+            $this->_termDictionaryInfos[] =
+                new Zend_Search_Lucene_Index_TermInfo($docFreq, $freqPointer, $proxPointer, $skipDelta, $indexPointer);
+            $prevTerm = $termValue;
+        }
+    }
+
+
+    /**
+     * Return segment name
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->_name;
+    }
+
+
+    /**
+     * Scans terms dictionary and returns term info
+     *
+     * @param Zend_Search_Lucene_Index_Term $term
+     * @return Zend_Search_Lucene_Index_TermInfo
+     */
+    public function getTermInfo($term)
+    {
+        $this->_loadDictionary();
+
+        $searchField = $this->getFieldNum($term->field);
+
+        if ($searchField == -1) {
+            return null;
+        }
+        $searchDicField = $this->_fieldsDicPositions[$searchField];
+
+        // search for appropriate value in dictionary
+        $lowIndex = 0;
+        $highIndex = count($this->_termDictionary)-1;
+        while ($highIndex >= $lowIndex) {
+            // $mid = ($highIndex - $lowIndex)/2;
+            $mid = ($highIndex + $lowIndex) >> 1;
+            $midTerm = $this->_termDictionary[$mid];
+
+            $delta = $searchDicField - $this->_fieldsDicPositions[$midTerm->field];
+            if ($delta == 0) {
+                $delta = strcmp($term->text, $midTerm->text);
+            }
+
+            if ($delta < 0) {
+                $highIndex = $mid-1;
+            } elseif ($delta > 0) {
+                $lowIndex  = $mid+1;
+            } else {
+                return $this->_termDictionaryInfos[$mid]; // We got it!
+            }
+        }
+
+        if ($highIndex == -1) {
+            // Term is out of the dictionary range
+            return null;
+        }
+
+        $prevPosition = $highIndex;
+        $prevTerm = $this->_termDictionary[$prevPosition];
+        $prevTermInfo = $this->_termDictionaryInfos[ $prevPosition ];
+
+        $tisFile = $this->openCompoundFile('.tis');
+        $tiVersion = $tisFile->readInt();
+        if ($tiVersion != (int)0xFFFFFFFE) {
+            throw new Zend_Search_Lucene_Exception('Wrong TermInfoFile file format');
+        }
+
+        $termCount     = $tisFile->readLong();
+        $indexInterval = $tisFile->readInt();
+        $skipInterval  = $tisFile->readInt();
+
+        $tisFile->seek($prevTermInfo->indexPointer - 20 /* header size*/, SEEK_CUR);
+
+        $termValue    = $prevTerm->text;
+        $termFieldNum = $prevTerm->field;
+        $freqPointer = $prevTermInfo->freqPointer;
+        $proxPointer = $prevTermInfo->proxPointer;
+        for ($count = $prevPosition*$indexInterval + 1;
+             $count < $termCount &&
+             ( $this->_fieldsDicPositions[ $termFieldNum ] < $searchDicField ||
+              ($this->_fieldsDicPositions[ $termFieldNum ] == $searchDicField &&
+               strcmp($termValue, $term->text) < 0) );
+             $count++) {
+            $termPrefixLength = $tisFile->readVInt();
+            $termSuffix       = $tisFile->readString();
+            $termFieldNum     = $tisFile->readVInt();
+            $termValue        = substr( $termValue, 0, $termPrefixLength ) . $termSuffix;
+
+            $docFreq      = $tisFile->readVInt();
+            $freqPointer += $tisFile->readVInt();
+            $proxPointer += $tisFile->readVInt();
+            if( $docFreq >= $skipInterval ) {
+                $skipOffset = $tisFile->readVInt();
+            } else {
+                $skipOffset = 0;
+            }
+        }
+
+        if ($termFieldNum == $searchField && $termValue == $term->text) {
+            return new Zend_Search_Lucene_Index_TermInfo($docFreq, $freqPointer, $proxPointer, $skipOffset);
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Returns normalization factor for specified documents
+     *
+     * @param integer $id
+     * @param string $fieldName
+     * @return string
+     */
+    public function norm($id, $fieldName)
+    {
+        $fieldNum = $this->getFieldNum($fieldName);
+
+        if ( !($this->_fields[$fieldNum]->isIndexed) ) {
+            return null;
+        }
+
+        if ( !isset( $this->_norms[$fieldNum] )) {
+            $fFile = $this->openCompoundFile('.f' . $fieldNum);
+            $this->_norms[$fieldNum] = $fFile->readBytes($this->_docCount);
+        }
+
+        return Zend_Search_Lucene_Search_Similarity::decodeNorm( ord($this->_norms[$fieldNum]{$id}) );
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Index/SegmentWriter.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/SegmentWriter.php
new file mode 100644
index 00000000..f90d6ed3
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/SegmentWriter.php
@@ -0,0 +1,491 @@
+<?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 Index
+ * @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_Exception */
+require_once 'Zend/Search/Lucene/Exception.php';
+
+/** Zend_Search_Lucene_Analysis_Analyzer */
+require_once 'Zend/Search/Lucene/Analysis/Analyzer.php';
+
+/** Zend_Search_Lucene_Index_SegmentInfo */
+require_once 'Zend/Search/Lucene/Index/SegmentInfo.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Index
+ * @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
+ */
+class Zend_Search_Lucene_Index_SegmentWriter
+{
+    /**
+     * Expert: The fraction of terms in the "dictionary" which should be stored
+     * in RAM.  Smaller values use more memory, but make searching slightly
+     * faster, while larger values use less memory and make searching slightly
+     * slower.  Searching is typically not dominated by dictionary lookup, so
+     * tweaking this is rarely useful.
+     *
+     * @var integer
+     */
+    static public $indexInterval = 128;
+
+    /** Expert: The fraction of TermDocs entries stored in skip tables.
+     * Larger values result in smaller indexes, greater acceleration, but fewer
+     * accelerable cases, while smaller values result in bigger indexes,
+     * less acceleration and more
+     * accelerable cases. More detailed experiments would be useful here.
+     *
+     * 0x0x7FFFFFFF indicates that we don't use skip data
+     * Default value is 16
+     *
+     * @var integer
+     */
+    static public $skipInterval = 0x7FFFFFFF;
+
+    /**
+     * Number of docs in a segment
+     *
+     * @var integer
+     */
+    private $_docCount;
+
+    /**
+     * Segment name
+     *
+     * @var string
+     */
+    private $_name;
+
+    /**
+     * File system adapter.
+     *
+     * @var Zend_Search_Lucene_Storage_Directory
+     */
+    private $_directory;
+
+    /**
+     * List of the index files.
+     * Used for automatic compound file generation
+     *
+     * @var unknown_type
+     */
+    private $_files;
+
+    /**
+     * Term Dictionary
+     * Array of the Zend_Search_Lucene_Index_Term objects
+     * Corresponding Zend_Search_Lucene_Index_TermInfo object stored in the $_termDictionaryInfos
+     *
+     * @var array
+     */
+    private $_termDictionary;
+
+    /**
+     * Documents, which contain the term
+     *
+     * @var array
+     */
+    private $_termDocs;
+
+    /**
+     * Segment fields. Array of Zend_Search_Lucene_Index_FieldInfo objects for this segment
+     *
+     * @var array
+     */
+    private $_fields;
+
+    /**
+     * Normalization factors.
+     * An array fieldName => normVector
+     * normVector is a binary string.
+     * Each byte corresponds to an indexed document in a segment and
+     * encodes normalization factor (float value, encoded by
+     * Zend_Search_Lucene_Search_Similarity::encodeNorm())
+     *
+     * @var array
+     */
+    private $_norms;
+
+
+    /**
+     * '.fdx'  file - Stored Fields, the field index.
+     *
+     * @var Zend_Search_Lucene_Storage_File
+     */
+    private $_fdxFile;
+
+    /**
+     * '.fdx'  file - Stored Fields, the field data.
+     *
+     * @var Zend_Search_Lucene_Storage_File
+     */
+    private $_fdtFile;
+
+
+    /**
+     * Object constructor.
+     *
+     * @param Zend_Search_Lucene_Storage_Directory $directory
+     * @param string $name
+     */
+    public function __construct($directory, $name)
+    {
+        $this->_directory = $directory;
+        $this->_name      = $name;
+        $this->_docCount  = 0;
+
+        $this->_fields   = array();
+        $this->_termDocs = array();
+        $this->_files    = array();
+        $this->_norms    = array();
+
+        $this->_fdxFile = null;
+        $this->_fdtFile = null;
+    }
+
+
+    /**
+     * Add field to the segment
+     *
+     * @param Zend_Search_Lucene_Field $field
+     */
+    private function _addFieldInfo(Zend_Search_Lucene_Field $field)
+    {
+        if (!isset($this->_fields[$field->name])) {
+            $this->_fields[$field->name] =
+                                new Zend_Search_Lucene_Index_FieldInfo($field->name,
+                                                                       $field->isIndexed,
+                                                                       count($this->_fields),
+                                                                       $field->storeTermVector);
+        } else {
+            $this->_fields[$field->name]->isIndexed       |= $field->isIndexed;
+            $this->_fields[$field->name]->storeTermVector |= $field->storeTermVector;
+        }
+    }
+
+
+    /**
+     * Adds a document to this segment.
+     *
+     * @param Zend_Search_Lucene_Document $document
+     * @throws Zend_Search_Lucene_Exception
+     */
+    public function addDocument(Zend_Search_Lucene_Document $document)
+    {
+        $storedFields = array();
+
+        foreach ($document->getFieldNames() as $fieldName) {
+            $field = $document->getField($fieldName);
+            $this->_addFieldInfo($field);
+
+            if ($field->storeTermVector) {
+                /**
+                 * @todo term vector storing support
+                 */
+                throw new Zend_Search_Lucene_Exception('Store term vector functionality is not supported yet.');
+            }
+
+            if ($field->isIndexed) {
+                if ($field->isTokenized) {
+                    $tokenList = Zend_Search_Lucene_Analysis_Analyzer::getDefault()->tokenize($field->stringValue);
+                } else {
+                    $tokenList = array();
+                    $tokenList[] = new Zend_Search_Lucene_Analysis_Token($field->stringValue, 0, strlen($field->stringValue));
+                }
+
+                $position = 0;
+                foreach ($tokenList as $token) {
+                    $term = new Zend_Search_Lucene_Index_Term($token->getTermText(), $field->name);
+                    $termKey = $term->key();
+
+                    if (!isset($this->_termDictionary[$termKey])) {
+                        // New term
+                        $this->_termDictionary[$termKey] = $term;
+                        $this->_termDocs[$termKey] = array();
+                        $this->_termDocs[$termKey][$this->_docCount] = array();
+                    } else if (!isset($this->_termDocs[$termKey][$this->_docCount])) {
+                        // Existing term, but new term entry
+                        $this->_termDocs[$termKey][$this->_docCount] = array();
+                    }
+                    $position += $token->getPositionIncrement();
+                    $this->_termDocs[$termKey][$this->_docCount][] = $position;
+                }
+            }
+
+            if ($field->isStored) {
+                $storedFields[] = $field;
+            }
+        }
+
+        if (count($storedFields) != 0) {
+            if (!isset($this->_fdxFile)) {
+                $this->_fdxFile = $this->_directory->createFile($this->_name . '.fdx');
+                $this->_fdtFile = $this->_directory->createFile($this->_name . '.fdt');
+
+                $this->_files[] = $this->_name . '.fdx';
+                $this->_files[] = $this->_name . '.fdt';
+            }
+
+            $this->_fdxFile->writeLong($this->_fdtFile->tell());
+
+            $this->_fdtFile->writeVInt(count($storedFields));
+            foreach ($storedFields as $field) {
+                $this->_fdtFile->writeVInt($this->_fields[$field->name]->number);
+                $this->_fdtFile->writeByte($field->isTokenized ? 0x01 : 0x00 |
+                                           $field->isBinary ?    0x02 : 0x00 |
+                                           0x00 /* 0x04 - third bit, compressed (ZLIB) */ );
+                if ($field->isBinary) {
+                    $this->_fdtFile->writeVInt(strlen($field->stringValue));
+                    $this->_fdtFile->writeBytes($field->stringValue);
+                } else {
+                    $this->_fdtFile->writeString($field->stringValue);
+                }
+            }
+        }
+
+        $this->_docCount++;
+    }
+
+
+    /**
+     * Dump Field Info (.fnm) segment file
+     */
+    private function _dumpFNM()
+    {
+        $fnmFile = $this->_directory->createFile($this->_name . '.fnm');
+        $fnmFile->writeVInt(count($this->_fields));
+
+        foreach ($this->_fields as $field) {
+            $fnmFile->writeString($field->name);
+            $fnmFile->writeByte(($field->isIndexed       ? 0x01 : 0x00) |
+                                ($field->storeTermVector ? 0x02 : 0x00) |
+// not supported yet            0x04 /* term positions are stored with the term vectors */ |
+// not supported yet            0x08 /* term offsets are stored with the term vectors */   |
+/* not supported yet */         0x10 /* norms are omitted for the indexed field */
+                               );
+        }
+
+        $this->_files[] = $this->_name . '.fnm';
+    }
+
+
+    /**
+     * Dump Term Dictionary segment file entry.
+     * Used to write entry to .tis or .tii files
+     *
+     * @param Zend_Search_Lucene_Storage_File $dicFile
+     * @param Zend_Search_Lucene_Index_Term $prevTerm
+     * @param Zend_Search_Lucene_Index_Term $term
+     * @param Zend_Search_Lucene_Index_TermInfo $prevTermInfo
+     * @param Zend_Search_Lucene_Index_TermInfo $termInfo
+     */
+    private function _dumpTermDictEntry(Zend_Search_Lucene_Storage_File $dicFile,
+                                        &$prevTerm,     Zend_Search_Lucene_Index_Term     $term,
+                                        &$prevTermInfo, Zend_Search_Lucene_Index_TermInfo $termInfo)
+    {
+        if (isset($prevTerm) && $prevTerm->field == $term->field) {
+            $prefixLength = 0;
+            while ($prefixLength < strlen($prevTerm->text) &&
+                   $prefixLength < strlen($term->text) &&
+                   $prevTerm->text{$prefixLength} == $term->text{$prefixLength}
+                  ) {
+                $prefixLength++;
+            }
+            // Write preffix length
+            $dicFile->writeVInt($prefixLength);
+            // Write suffix
+            $dicFile->writeString( substr($term->text, $prefixLength) );
+        } else {
+            // Write preffix length
+            $dicFile->writeVInt(0);
+            // Write suffix
+            $dicFile->writeString($term->text);
+        }
+        // Write field number
+        $dicFile->writeVInt($term->field);
+        // DocFreq (the count of documents which contain the term)
+        $dicFile->writeVInt($termInfo->docFreq);
+
+        $prevTerm = $term;
+
+        if (!isset($prevTermInfo)) {
+            // Write FreqDelta
+            $dicFile->writeVInt($termInfo->freqPointer);
+            // Write ProxDelta
+            $dicFile->writeVInt($termInfo->proxPointer);
+        } else {
+            // Write FreqDelta
+            $dicFile->writeVInt($termInfo->freqPointer - $prevTermInfo->freqPointer);
+            // Write ProxDelta
+            $dicFile->writeVInt($termInfo->proxPointer - $prevTermInfo->proxPointer);
+        }
+        // Write SkipOffset - it's not 0 when $termInfo->docFreq > self::$skipInterval
+        if ($termInfo->skipOffset != 0) {
+            $dicFile->writeVInt($termInfo->skipOffset);
+        }
+
+        $prevTermInfo = $termInfo;
+    }
+
+    /**
+     * Dump Term Dictionary (.tis) and Term Dictionary Index (.tii) segment files
+     */
+    private function _dumpDictionary()
+    {
+        $tisFile = $this->_directory->createFile($this->_name . '.tis');
+        $tisFile->writeInt((int)0xFFFFFFFE);
+        $tisFile->writeLong(count($this->_termDictionary));
+        $tisFile->writeInt(self::$indexInterval);
+        $tisFile->writeInt(self::$skipInterval);
+
+        $tiiFile = $this->_directory->createFile($this->_name . '.tii');
+        $tiiFile->writeInt((int)0xFFFFFFFE);
+        $tiiFile->writeLong((int)((count($this->_termDictionary) - 1)/self::$indexInterval) + 1);
+        $tiiFile->writeInt(self::$indexInterval);
+        $tiiFile->writeInt(self::$skipInterval);
+
+        $frqFile = $this->_directory->createFile($this->_name . '.frq');
+        $prxFile = $this->_directory->createFile($this->_name . '.prx');
+
+        $termKeys = array_keys($this->_termDictionary);
+        sort($termKeys, SORT_STRING);
+
+        $termCount = 0;
+
+        $prevTerm     = null;
+        $prevTermInfo = null;
+        $prevIndexTerm     = null;
+        $prevIndexTermInfo = null;
+        $prevIndexPosition = 0;
+
+        foreach ($termKeys as $termId) {
+            $freqPointer = $frqFile->tell();
+            $proxPointer = $prxFile->tell();
+
+            $prevDoc = 0;
+            foreach ($this->_termDocs[$termId] as $docId => $termPositions) {
+                $docDelta = ($docId - $prevDoc)*2;
+                $prevDoc = $docId;
+                if (count($termPositions) > 1) {
+                    $frqFile->writeVInt($docDelta);
+                    $frqFile->writeVInt(count($termPositions));
+                } else {
+                    $frqFile->writeVInt($docDelta + 1);
+                }
+
+                $prevPosition = 0;
+                foreach ($termPositions as $position) {
+                    $prxFile->writeVInt($position - $prevPosition);
+                    $prevPosition = $position;
+                }
+            }
+
+            if (count($this->_termDocs[$termId]) >= self::$skipInterval) {
+                /**
+                 * @todo Write Skip Data to a freq file.
+                 * It's not used now, but must be implemented to be compatible with Lucene
+                 */
+                $skipOffset = $frqFile->tell() - $freqPointer;
+            } else {
+                $skipOffset = 0;
+            }
+
+            $term = new Zend_Search_Lucene_Index_Term($this->_termDictionary[$termId]->text,
+                                                      $this->_fields[$this->_termDictionary[$termId]->field]->number);
+            $termInfo = new Zend_Search_Lucene_Index_TermInfo(count($this->_termDocs[$termId]),
+                                            $freqPointer, $proxPointer, $skipOffset);
+
+            $this->_dumpTermDictEntry($tisFile, $prevTerm, $term, $prevTermInfo, $termInfo);
+
+            if ($termCount % self::$indexInterval == 0) {
+                $this->_dumpTermDictEntry($tiiFile, $prevIndexTerm, $term, $prevIndexTermInfo, $termInfo);
+
+                $indexPosition = $tisFile->tell();
+                $tiiFile->writeVInt($indexPosition - $prevIndexPosition);
+                $prevIndexPosition = $indexPosition;
+            }
+            $termCount++;
+        }
+
+        $this->_files[] = $this->_name . '.tis';
+        $this->_files[] = $this->_name . '.tii';
+        $this->_files[] = $this->_name . '.frq';
+        $this->_files[] = $this->_name . '.prx';
+    }
+
+
+    /**
+     * Generate compound index file
+     */
+    private function _generateCFS()
+    {
+        $cfsFile = $this->_directory->createFile($this->_name . '.cfs');
+        $cfsFile->writeVInt(count($this->_files));
+
+        $dataOffsetPointers = array();
+        foreach ($this->_files as $fileName) {
+            $dataOffsetPointers[$fileName] = $cfsFile->tell();
+            $cfsFile->writeLong(0); // write dummy data
+            $cfsFile->writeString($fileName);
+        }
+
+        foreach ($this->_files as $fileName) {
+            // Get actual data offset
+            $dataOffset = $cfsFile->tell();
+            // Seek to the data offset pointer
+            $cfsFile->seek($dataOffsetPointers[$fileName]);
+            // Write actual data offset value
+            $cfsFile->writeLong($dataOffset);
+            // Seek back to the end of file
+            $cfsFile->seek($dataOffset);
+
+            $dataFile = $this->_directory->getFileObject($fileName);
+            $cfsFile->writeBytes($dataFile->readBytes($this->_directory->fileLength($fileName)));
+
+            $this->_directory->deleteFile($fileName);
+        }
+    }
+
+
+    /**
+     * Close segment, write it to disk and return segment info
+     *
+     * @return Zend_Search_Lucene_Index_SegmentInfo
+     */
+    public function close()
+    {
+        if ($this->_docCount == 0) {
+            return null;
+        }
+
+        $this->_dumpFNM();
+        $this->_dumpDictionary();
+
+        $this->_generateCFS();
+
+        return new Zend_Search_Lucene_Index_SegmentInfo($this->_name,
+                                                        $this->_docCount,
+                                                        $this->_directory);
+    }
+
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Index/Term.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/Term.php
new file mode 100644
index 00000000..e30ce587
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/Term.php
@@ -0,0 +1,70 @@
+<?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 Index
+ * @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
+ */
+
+
+/**
+ * A Term represents a word from text.  This is the unit of search.  It is
+ * composed of two elements, the text of the word, as a string, and the name of
+ * the field that the text occured in, an interned string.
+ *
+ * Note that terms may represent more than words from text fields, but also
+ * things like dates, email addresses, urls, etc.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage Index
+ * @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
+ */
+class Zend_Search_Lucene_Index_Term
+{
+    /**
+     * Field name or field number (depending from context)
+     *
+     * @var mixed
+     */
+    public $field;
+
+    /**
+     * Term value
+     *
+     * @var string
+     */
+    public $text;
+
+
+    /**
+     * @todo docblock
+     */
+    public function __construct( $text, $field = 'contents' )
+    {
+        $this->field = $field;
+        $this->text = $text;
+    }
+
+
+    /**
+     * @todo docblock
+     */
+    public function key()
+    {
+        return $this->field . chr(0) . $this->text;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Index/TermInfo.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/TermInfo.php
new file mode 100644
index 00000000..ddef721d
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/TermInfo.php
@@ -0,0 +1,77 @@
+<?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 Index
+ * @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
+ */
+
+
+/**
+ * A Zend_Search_Lucene_Index_TermInfo represents a record of information stored for a term.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage Index
+ * @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
+ */
+class Zend_Search_Lucene_Index_TermInfo
+{
+    /**
+     * The number of documents which contain the term.
+     *
+     * @var integer
+     */
+    public $docFreq;
+
+    /**
+     * Data offset in a Frequencies file.
+     *
+     * @var integer
+     */
+    public $freqPointer;
+
+    /**
+     * Data offset in a Positions file.
+     *
+     * @var integer
+     */
+    public $proxPointer;
+
+    /**
+     * ScipData offset in a Frequencies file.
+     *
+     * @var integer
+     */
+    public $skipOffset;
+
+    /**
+     * Term offset of the _next_ term in a TermDictionary file.
+     * Used only for Term Index
+     *
+     * @var integer
+     */
+    public $indexPointer;
+
+    public function __construct($docFreq, $freqPointer, $proxPointer, $skipOffset, $indexPointer = null)
+    {
+        $this->docFreq      = $docFreq;
+        $this->freqPointer  = $freqPointer;
+        $this->proxPointer  = $proxPointer;
+        $this->skipOffset   = $skipOffset;
+        $this->indexPointer = $indexPointer;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Index/Writer.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/Writer.php
new file mode 100644
index 00000000..da4af000
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Index/Writer.php
@@ -0,0 +1,308 @@
+<?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 Index
+ * @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_Index_SegmentWriter */
+require_once 'Zend/Search/Lucene/Index/SegmentWriter.php';
+
+/** Zend_Search_Lucene_Index_SegmentInfo */
+require_once 'Zend/Search/Lucene/Index/SegmentInfo.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Index
+ * @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
+ */
+class Zend_Search_Lucene_Index_Writer
+{
+    /**
+     * @todo Implement segment merger
+     * @todo Implement mergeFactor, minMergeDocs, maxMergeDocs usage.
+     * @todo Implement Analyzer substitution
+     * @todo Implement Zend_Search_Lucene_Storage_DirectoryRAM and Zend_Search_Lucene_Storage_FileRAM to use it for
+     *       temporary index files
+     * @todo Directory lock processing
+     */
+
+    /**
+     * File system adapter.
+     *
+     * @var Zend_Search_Lucene_Storage_Directory
+     */
+    private $_directory = null;
+
+
+    /**
+     * Index version
+     * Counts how often the index has been changed by adding or deleting docs
+     *
+     * @var integer
+     */
+    private $_version;
+
+    /**
+     * Segment name counter.
+     * Used to name new segments .
+     *
+     * @var integer
+     */
+    private $_segmentNameCounter;
+
+    /**
+     * Number of the segments in the index
+     *
+     * @var inteher
+     */
+    private $_segments;
+
+    /**
+     * Determines how often segment indices
+     * are merged by addDocument().
+     *
+     * @var integer
+     */
+    public $mergeFactor;
+
+    /**
+     * Determines the minimal number of documents required before
+     * the buffered in-memory documents are merging and a new Segment
+     * is created.
+     *
+     * @var integer
+     */
+    public $minMergeDocs;
+
+    /**
+     * Determines the largest number of documents ever merged by addDocument().
+     *
+     * @var integer
+     */
+    public $maxMergeDocs;
+
+    /**
+     * List of the segments, created by index writer
+     * Array of Zend_Search_Lucene_Index_SegmentInfo objects
+     *
+     * @var array
+     */
+    private $_newSegments;
+
+    /**
+     * Current segment to add documents
+     *
+     * @var Zend_Search_Lucene_Index_SegmentWriter
+     */
+    private $_currentSegment;
+
+    /**
+     * Opens the index for writing
+     *
+     * IndexWriter constructor needs Directory as a parameter. It should be
+     * a string with a path to the index folder or a Directory object.
+     * Second constructor parameter create is optional - true to create the
+     * index or overwrite the existing one.
+     *
+     * @param Zend_Search_Lucene_Storage_Directory $directory
+     * @param boolean $create
+     */
+    public function __construct(Zend_Search_Lucene_Storage_Directory $directory, $create = false)
+    {
+        $this->_directory = $directory;
+
+        if ($create) {
+            foreach ($this->_directory->fileList() as $file) {
+                if ($file == 'deletable' ||
+                    $file == 'segments'  ||
+                    substr($file, strlen($file)-4) == '.cfs') {
+                        $this->_directory->deleteFile($file);
+                    }
+            }
+            $segmentsFile = $this->_directory->createFile('segments');
+            $segmentsFile->writeInt((int)0xFFFFFFFF);
+            // write version
+            $segmentsFile->writeLong(0);
+            // write name counter
+            $segmentsFile->writeInt(0);
+            // write segment counter
+            $segmentsFile->writeInt(0);
+
+            $deletableFile = $this->_directory->createFile('deletable');
+            // write counter
+            $deletableFile->writeInt(0);
+
+            $this->_version            = 0;
+            $this->_segmentNameCounter = 0;
+            $this->_segments           = 0;
+        } else {
+            $segmentsFile = $this->_directory->getFileObject('segments');
+            $format = $segmentsFile->readInt();
+            if ($format != (int)0xFFFFFFFF) {
+                throw new Zend_Search_Lucene_Exception('Wrong segments file format');
+            }
+
+            // read version
+            $this->_version            = $segmentsFile->readLong();
+            // read counter
+            $this->_segmentNameCounter = $segmentsFile->readInt();
+            // read segment counter
+            $this->_segments           = $segmentsFile->readInt();
+        }
+
+        $this->_newSegments = array();
+        $this->_currentSegment = null;
+    }
+
+    /**
+     * Adds a document to this index.
+     *
+     * @param Zend_Search_Lucene_Document $document
+     */
+    public function addDocument(Zend_Search_Lucene_Document $document)
+    {
+        if ($this->_currentSegment === null) {
+            $this->_currentSegment =
+                new Zend_Search_Lucene_Index_SegmentWriter($this->_directory, $this->_newSegmentName());
+        }
+        $this->_currentSegment->addDocument($document);
+        $this->_version++;
+    }
+
+
+
+    /**
+     * Update segments file by adding current segment to a list
+     * @todo !!!!!Finish the implementation
+     *
+     * @throws Zend_Search_Lucene_Exception
+     */
+    private function _updateSegments()
+    {
+        $segmentsFile   = $this->_directory->getFileObject('segments');
+        $newSegmentFile = $this->_directory->createFile('segments.new');
+
+        $newSegmentFile->writeInt((int)0xFFFFFFFF);
+        $newSegmentFile->writeLong($this->_version);
+        $newSegmentFile->writeInt($this->_segmentNameCounter);
+        $newSegmentFile->writeInt($this->_segments + count($this->_newSegments));
+
+        $segmentsFile->seek(20);
+        $newSegmentFile->writeBytes($segmentsFile->readBytes($this->_directory->fileLength('segments') - 20));
+
+        foreach ($this->_newSegments as $segmentName => $segmentInfo) {
+            $newSegmentFile->writeString($segmentName);
+            $newSegmentFile->writeInt($segmentInfo->count());
+        }
+
+        $this->_directory->renameFile('segments.new', 'segments');
+    }
+
+
+    /**
+     * Commit current changes
+     * returns array of new segments
+     *
+     * @return array
+     */
+    public function commit()
+    {
+        if ($this->_currentSegment !== null) {
+            $newSegment = $this->_currentSegment->close();
+            if ($newSegment !== null) {
+                $this->_newSegments[$newSegment->getName()] = $newSegment;
+            }
+            $this->_currentSegment = null;
+        }
+
+        if (count($this->_newSegments) != 0) {
+            $this->_updateSegments();
+        }
+
+        $result = $this->_newSegments;
+        $this->_newSegments = array();
+
+        return $result;
+    }
+
+
+    /**
+     * Merges the provided indexes into this index.
+     *
+     * @param array $readers
+     * @return void
+     */
+    public function addIndexes($readers)
+    {
+        /**
+         * @todo implementation
+         */
+    }
+
+
+    /**
+     * Returns the number of documents currently in this index.
+     *
+     * @return integer
+     */
+    public function docCount($readers)
+    {
+        /**
+         * @todo implementation
+         */
+    }
+
+
+    /**
+     * Flushes all changes to an index and closes all associated files.
+     *
+     */
+    public function close()
+    {
+        /**
+         * @todo implementation
+         */
+    }
+
+
+    /**
+     * Merges all segments together into a single segment, optimizing
+     * an index for search.
+     *
+     * return void
+     */
+    public function optimize()
+    {
+        /**
+         * @todo implementation
+         */
+    }
+
+    /**
+     * Get name for new segment
+     *
+     * @return string
+     */
+    private function _newSegmentName()
+    {
+        return '_' . base_convert($this->_segmentNameCounter++, 10, 36);
+    }
+
+}
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query.php
new file mode 100644
index 00000000..dd8698e8
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query.php
@@ -0,0 +1,98 @@
+<?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 Search
+ * @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
+ */
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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_Search_Query
+{
+
+    /**
+     * query boost factor
+     *
+     * @var float
+     */
+    private $_boost = 1.0;
+
+    /**
+     * Query weight
+     *
+     * @var Zend_Search_Lucene_Search_Weight
+     */
+    protected $_weight;
+
+
+    /**
+     * Gets the boost for this clause.  Documents matching
+     * this clause will (in addition to the normal weightings) have their score
+     * multiplied by boost.   The boost is 1.0 by default.
+     *
+     * @return float
+     */
+    public function getBoost()
+    {
+        return $this->_boost;
+    }
+
+    /**
+     * Sets the boost for this query clause to $boost.
+     *
+     * @param float $boost
+     */
+    public function setBoost($boost)
+    {
+        $this->_boost = $boost;
+    }
+
+    /**
+     * Score specified document
+     *
+     * @param integer $docId
+     * @param Zend_Search_Lucene $reader
+     * @return float
+     */
+    abstract public function score($docId, $reader);
+
+    /**
+     * Constructs an appropriate Weight implementation for this query.
+     *
+     * @param Zend_Search_Lucene $reader
+     * @return Zend_Search_Lucene_Search_Weight
+     */
+    abstract protected function _createWeight($reader);
+
+    /**
+     * Constructs an initializes a Weight for a query.
+     *
+     * @param Zend_Search_Lucene $reader
+     */
+    protected function _initWeight($reader)
+    {
+        $this->_weight = $this->_createWeight($reader);
+        $sum = $this->_weight->sumOfSquaredWeights();
+        $queryNorm = $reader->getSimilarity()->queryNorm($sum);
+        $this->_weight->normalize($queryNorm);
+    }
+
+}
\ No newline at end of file
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/MultiTerm.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/MultiTerm.php
new file mode 100644
index 00000000..4a99c0f7
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/MultiTerm.php
@@ -0,0 +1,437 @@
+<?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 Search
+ * @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_Search_Query */
+require_once 'Zend/Search/Lucene/Search/Query.php';
+
+/** Zend_Search_Lucene_Search_Weight_MultiTerm */
+require_once 'Zend/Search/Lucene/Search/Weight/MultiTerm.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_Query_MultiTerm extends Zend_Search_Lucene_Search_Query
+{
+
+    /**
+     * Terms to find.
+     * Array of Zend_Search_Lucene_Index_Term
+     *
+     * @var array
+     */
+    private $_terms = array();
+
+    /**
+     * Term signs.
+     * If true then term is required.
+     * If false then term is prohibited.
+     * If null then term is neither prohibited, nor required
+     *
+     * If array is null then all terms are required
+     *
+     * @var array
+     */
+
+    private $_signs = array();
+
+    /**
+     * Result vector.
+     * Bitset or array of document IDs
+     * (depending from Bitset extension availability).
+     *
+     * @var mixed
+     */
+    private $_resVector = null;
+
+    /**
+     * Terms positions vectors.
+     * Array of Arrays:
+     * term1Id => (docId => array( pos1, pos2, ... ), ...)
+     * term2Id => (docId => array( pos1, pos2, ... ), ...)
+     *
+     * @var array
+     */
+    private $_termsPositions = array();
+
+
+    /**
+     * A score factor based on the fraction of all query terms
+     * that a document contains.
+     * float for conjunction queries
+     * array of float for non conjunction queries
+     *
+     * @var mixed
+     */
+    private $_coord = null;
+
+
+    /**
+     * Terms weights
+     * array of Zend_Search_Lucene_Search_Weight
+     *
+     * @var array
+     */
+    private $_weights = array();
+
+
+    /**
+     * Class constructor.  Create a new multi-term query object.
+     *
+     * @param array $terms    Array of Zend_Search_Lucene_Index_Term objects
+     * @param array $signs    Array of signs.  Sign is boolean|null.
+     * @return void
+     */
+    public function __construct($terms = null, $signs = null)
+    {
+        /**
+         * @todo Check contents of $terms and $signs before adding them.
+         */
+        if (is_array($terms)) {
+            $this->_terms = $terms;
+
+            $this->_signs = null;
+            // Check if all terms are required
+            if (is_array($signs)) {
+                foreach ($signs as $sign ) {
+                    if ($sign !== true) {
+                        $this->_signs = $signs;
+                        continue;
+                    }
+                }
+            }
+        }
+    }
+
+
+    /**
+     * Add a $term (Zend_Search_Lucene_Index_Term) to this query.
+     *
+     * The sign is specified as:
+     *     TRUE  - term is required
+     *     FALSE - term is prohibited
+     *     NULL  - term is neither prohibited, nor required
+     *
+     * @param  Zend_Search_Lucene_Index_Term $term
+     * @param  boolean|null $sign
+     * @return void
+     */
+    public function addTerm(Zend_Search_Lucene_Index_Term $term, $sign=null) {
+        $this->_terms[] = $term;
+
+        /**
+         * @todo This is not good.  Sometimes $this->_signs is an array, sometimes
+         * it is null, even when there are terms.  It will be changed so that
+         * it is always an array.
+         */
+        if ($this->_signs === null) {
+            if ($sign !== null) {
+                $this->_signs = array();
+                foreach ($this->_terms as $term) {
+                    $this->_signs[] = null;
+                }
+                $this->_signs[] = $sign;
+            }
+        } else {
+            $this->_signs[] = $sign;
+        }
+    }
+
+
+    /**
+     * Returns query term
+     *
+     * @return array
+     */
+    public function getTerms()
+    {
+        return $this->_terms;
+    }
+
+
+    /**
+     * Return terms signs
+     *
+     * @return array
+     */
+    public function getSigns()
+    {
+        return $this->_signs;
+    }
+
+
+    /**
+     * Set weight for specified term
+     *
+     * @param integer $num
+     * @param Zend_Search_Lucene_Search_Weight_Term $weight
+     */
+    public function setWeight($num, $weight)
+    {
+        $this->_weights[$num] = $weight;
+    }
+
+
+    /**
+     * Constructs an appropriate Weight implementation for this query.
+     *
+     * @param Zend_Search_Lucene $reader
+     * @return Zend_Search_Lucene_Search_Weight
+     */
+    protected function _createWeight($reader)
+    {
+        return new Zend_Search_Lucene_Search_Weight_MultiTerm($this, $reader);
+    }
+
+
+    /**
+     * Calculate result vector for Conjunction query
+     * (like '+something +another')
+     *
+     * @param Zend_Search_Lucene $reader
+     */
+    private function _calculateConjunctionResult($reader)
+    {
+        if (extension_loaded('bitset')) {
+            foreach( $this->_terms as $termId=>$term ) {
+                if($this->_resVector === null) {
+                    $this->_resVector = bitset_from_array($reader->termDocs($term));
+                } else {
+                    $this->_resVector = bitset_intersection(
+                                $this->_resVector,
+                                bitset_from_array($reader->termDocs($term)) );
+                }
+
+                $this->_termsPositions[$termId] = $reader->termPositions($term);
+            }
+        } else {
+            foreach( $this->_terms as $termId=>$term ) {
+                if($this->_resVector === null) {
+                    $this->_resVector = array_flip($reader->termDocs($term));
+                } else {
+                    $termDocs = array_flip($reader->termDocs($term));
+                    foreach($this->_resVector as $key=>$value) {
+                        if (!isset( $termDocs[$key] )) {
+                            unset( $this->_resVector[$key] );
+                        }
+                    }
+                }
+
+                $this->_termsPositions[$termId] = $reader->termPositions($term);
+            }
+        }
+    }
+
+
+    /**
+     * Calculate result vector for non Conjunction query
+     * (like '+something -another')
+     *
+     * @param Zend_Search_Lucene $reader
+     */
+    private function _calculateNonConjunctionResult($reader)
+    {
+        if (extension_loaded('bitset')) {
+            $required   = null;
+            $neither    = bitset_empty();
+            $prohibited = bitset_empty();
+
+            foreach ($this->_terms as $termId => $term) {
+                $termDocs = bitset_from_array($reader->termDocs($term));
+
+                if ($this->_signs[$termId] === true) {
+                    // required
+                    if ($required !== null) {
+                        $required = bitset_intersection($required, $termDocs);
+                    } else {
+                        $required = $termDocs;
+                    }
+                } elseif ($this->_signs[$termId] === false) {
+                    // prohibited
+                    $prohibited = bitset_union($prohibited, $termDocs);
+                } else {
+                    // neither required, nor prohibited
+                    $neither = bitset_union($neither, $termDocs);
+                }
+
+                $this->_termsPositions[$termId] = $reader->termPositions($term);
+            }
+
+            if ($required === null) {
+                $required = $neither;
+            }
+            $this->_resVector = bitset_intersection( $required,
+                                                     bitset_invert($prohibited, $reader->count()) );
+        } else {
+            $required   = null;
+            $neither    = array();
+            $prohibited = array();
+
+            foreach ($this->_terms as $termId => $term) {
+                $termDocs = array_flip($reader->termDocs($term));
+
+                if ($this->_signs[$termId] === true) {
+                    // required
+                    if ($required !== null) {
+                        // substitute for bitset_intersection
+                        foreach ($required as $key => $value) {
+                            if (!isset( $termDocs[$key] )) {
+                                unset($required[$key]);
+                            }
+                        }
+                    } else {
+                        $required = $termDocs;
+                    }
+                } elseif ($this->_signs[$termId] === false) {
+                    // prohibited
+                    // substitute for bitset_union
+                    foreach ($termDocs as $key => $value) {
+                        $prohibited[$key] = $value;
+                    }
+                } else {
+                    // neither required, nor prohibited
+                    // substitute for bitset_union
+                    foreach ($termDocs as $key => $value) {
+                        $neither[$key] = $value;
+                    }
+                }
+
+                $this->_termsPositions[$termId] = $reader->termPositions($term);
+            }
+
+            if ($required === null) {
+                $required = $neither;
+            }
+
+            foreach ($required as $key=>$value) {
+                if (isset( $prohibited[$key] )) {
+                    unset($required[$key]);
+                }
+            }
+            $this->_resVector = $required;
+        }
+    }
+
+
+    /**
+     * Score calculator for conjunction queries (all terms are required)
+     *
+     * @param integer $docId
+     * @param Zend_Search_Lucene $reader
+     * @return float
+     */
+    public function _conjunctionScore($docId, $reader)
+    {
+        if ($this->_coord === null) {
+            $this->_coord = $reader->getSimilarity()->coord(count($this->_terms),
+                                                            count($this->_terms) );
+        }
+
+        $score = 0.0;
+
+        foreach ($this->_terms as $termId=>$term) {
+            $score += $reader->getSimilarity()->tf(count($this->_termsPositions[$termId][$docId]) ) *
+                      $this->_weights[$termId]->getValue() *
+                      $reader->norm($docId, $term->field);
+        }
+
+        return $score * $this->_coord;
+    }
+
+
+    /**
+     * Score calculator for non conjunction queries (not all terms are required)
+     *
+     * @param integer $docId
+     * @param Zend_Search_Lucene $reader
+     * @return float
+     */
+    public function _nonConjunctionScore($docId, $reader)
+    {
+        if ($this->_coord === null) {
+            $this->_coord = array();
+
+            $maxCoord = 0;
+            foreach ($this->_signs as $sign) {
+                if ($sign !== false /* not prohibited */) {
+                    $maxCoord++;
+                }
+            }
+
+            for ($count = 0; $count <= $maxCoord; $count++) {
+                $this->_coord[$count] = $reader->getSimilarity()->coord($count, $maxCoord);
+            }
+        }
+
+        $score = 0.0;
+        $matchedTerms = 0;
+        foreach ($this->_terms as $termId=>$term) {
+            // Check if term is
+            if ($this->_signs[$termId] !== false &&            // not prohibited
+                isset($this->_termsPositions[$termId][$docId]) // matched
+               ) {
+                $matchedTerms++;
+                $score +=
+                      $reader->getSimilarity()->tf(count($this->_termsPositions[$termId][$docId]) ) *
+                      $this->_weights[$termId]->getValue() *
+                      $reader->norm($docId, $term->field);
+            }
+        }
+
+        return $score * $this->_coord[$matchedTerms];
+    }
+
+    /**
+     * Score specified document
+     *
+     * @param integer $docId
+     * @param Zend_Search_Lucene $reader
+     * @return float
+     */
+    public function score($docId, $reader)
+    {
+        if($this->_resVector === null) {
+            if ($this->_signs === null) {
+                $this->_calculateConjunctionResult($reader);
+            } else {
+                $this->_calculateNonConjunctionResult($reader);
+            }
+
+            $this->_initWeight($reader);
+        }
+
+        if ( (extension_loaded('bitset')) ?
+                bitset_in($this->_resVector, $docId) :
+                isset($this->_resVector[$docId])  ) {
+            if ($this->_signs === null) {
+                return $this->_conjunctionScore($docId, $reader);
+            } else {
+                return $this->_nonConjunctionScore($docId, $reader);
+            }
+        } else {
+            return 0;
+        }
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/Phrase.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/Phrase.php
new file mode 100644
index 00000000..3e52666b
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/Phrase.php
@@ -0,0 +1,424 @@
+<?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 Search
+ * @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_Search_Query
+ */
+require_once 'Zend/Search/Lucene/Search/Query.php';
+
+/**
+ * Zend_Search_Lucene_Search_Weight_MultiTerm
+ */
+require_once 'Zend/Search/Lucene/Search/Weight/Phrase.php';
+
+
+/**
+ * A Query that matches documents containing a particular sequence of terms.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_Query_Phrase extends Zend_Search_Lucene_Search_Query
+{
+    /**
+     * Terms to find.
+     * Array of Zend_Search_Lucene_Index_Term objects.
+     *
+     * @var array
+     */
+    private $_terms;
+
+    /**
+     * Term positions (relative positions of terms within the phrase).
+     * Array of integers
+     *
+     * @var array
+     */
+    private $_offsets;
+
+    /**
+     * Sets the number of other words permitted between words in query phrase.
+     * If zero, then this is an exact phrase search.  For larger values this works
+     * like a WITHIN or NEAR operator.
+     *
+     * The slop is in fact an edit-distance, where the units correspond to
+     * moves of terms in the query phrase out of position.  For example, to switch
+     * the order of two words requires two moves (the first move places the words
+     * atop one another), so to permit re-orderings of phrases, the slop must be
+     * at least two.
+     * More exact matches are scored higher than sloppier matches, thus search
+     * results are sorted by exactness.
+     *
+     * The slop is zero by default, requiring exact matches.
+     *
+     * @var unknown_type
+     */
+    private $_slop;
+
+    /**
+     * Result vector.
+     * Bitset or array of document IDs
+     * (depending from Bitset extension availability).
+     *
+     * @var mixed
+     */
+    private $_resVector = null;
+
+    /**
+     * Terms positions vectors.
+     * Array of Arrays:
+     * term1Id => (docId => array( pos1, pos2, ... ), ...)
+     * term2Id => (docId => array( pos1, pos2, ... ), ...)
+     *
+     * @var array
+     */
+    private $_termsPositions = array();
+
+    /**
+     * Class constructor.  Create a new prase query.
+     *
+     * @param string $field    Field to search.
+     * @param array  $terms    Terms to search Array of strings.
+     * @param array  $offsets  Relative term positions. Array of integers.
+     * @throws Zend_Search_Lucene_Exception
+     */
+    public function __construct($terms = null, $offsets = null, $field = null)
+    {
+        $this->_slop = 0;
+
+        if (is_array($terms)) {
+            $this->_terms = array();
+            foreach ($terms as $termId => $termText) {
+                $this->_terms[$termId] = ($field !== null)? new Zend_Search_Lucene_Index_Term($termText, $field):
+                                                            new Zend_Search_Lucene_Index_Term($termText);
+            }
+        } else if ($terms === null) {
+            $this->_terms = array();
+        } else {
+            throw new Zend_Search_Lucene_Exception('terms argument must be array of strings or null');
+        }
+
+        if (is_array($offsets)) {
+            if (count($this->_terms) != count($offsets)) {
+                throw new Zend_Search_Lucene_Exception('terms and offsets arguments must have the same size.');
+            }
+            $this->_offsets = $offsets;
+        } else if ($offsets === null) {
+            $this->_offsets = array();
+            foreach ($this->_terms as $termId => $term) {
+                $position = count($this->_offsets);
+                $this->_offsets[$termId] = $position;
+            }
+        } else {
+            throw new Zend_Search_Lucene_Exception('offsets argument must be array of strings or null');
+        }
+    }
+
+    /**
+     * Set slop
+     *
+     * @param integer $slop
+     */
+    public function setSlop($slop)
+    {
+        $this->_slop = $slop;
+    }
+
+
+    /**
+     * Get slop
+     *
+     * @return integer
+     */
+    public function getSlop()
+    {
+        return $this->_slop;
+    }
+
+
+    /**
+     * Adds a term to the end of the query phrase.
+     * The relative position of the term is specified explicitly or the one immediately
+     * after the last term added.
+     *
+     * @param Zend_Search_Lucene_Index_Term $term
+     * @param integer $position
+     */
+    public function addTerm(Zend_Search_Lucene_Index_Term $term, $position = null) {
+        if ((count($this->_terms) != 0)&&(end($this->_terms)->field != $term->field)) {
+            throw new Zend_Search_Lucene_Exception('All phrase terms must be in the same field: ' .
+                                                   $term->field . ':' . $term->text);
+        }
+
+        $this->_terms[] = $term;
+        if ($position !== null) {
+            $this->_offsets[] = $position;
+        } else if (count($this->_offsets) != 0) {
+            $this->_offsets[] = end($this->_offsets) + 1;
+        } else {
+            $this->_offsets[] = 0;
+        }
+    }
+
+
+    /**
+     * Returns query term
+     *
+     * @return array
+     */
+    public function getTerms()
+    {
+        return $this->_terms;
+    }
+
+
+    /**
+     * Set weight for specified term
+     *
+     * @param integer $num
+     * @param Zend_Search_Lucene_Search_Weight_Term $weight
+     */
+    public function setWeight($num, $weight)
+    {
+        $this->_weights[$num] = $weight;
+    }
+
+
+    /**
+     * Constructs an appropriate Weight implementation for this query.
+     *
+     * @param Zend_Search_Lucene $reader
+     * @return Zend_Search_Lucene_Search_Weight
+     */
+    protected function _createWeight($reader)
+    {
+        return new Zend_Search_Lucene_Search_Weight_Phrase($this, $reader);
+    }
+
+
+    /**
+     * Calculate result vector
+     *
+     * @param Zend_Search_Lucene $reader
+     */
+    private function _calculateResult($reader)
+    {
+        if (extension_loaded('bitset')) {
+            foreach( $this->_terms as $termId=>$term ) {
+                if($this->_resVector === null) {
+                    $this->_resVector = bitset_from_array($reader->termDocs($term));
+                } else {
+                    $this->_resVector = bitset_intersection(
+                                $this->_resVector,
+                                bitset_from_array($reader->termDocs($term)) );
+                }
+
+                $this->_termsPositions[$termId] = $reader->termPositions($term);
+            }
+        } else {
+            foreach( $this->_terms as $termId=>$term ) {
+                if($this->_resVector === null) {
+                    $this->_resVector = array_flip($reader->termDocs($term));
+                } else {
+                    $termDocs = array_flip($reader->termDocs($term));
+                    foreach($this->_resVector as $key=>$value) {
+                        if (!isset( $termDocs[$key] )) {
+                            unset( $this->_resVector[$key] );
+                        }
+                    }
+                }
+
+                $this->_termsPositions[$termId] = $reader->termPositions($term);
+            }
+        }
+    }
+
+
+    /**
+     * Score calculator for exact phrase queries (terms sequence is fixed)
+     *
+     * @param integer $docId
+     * @return float
+     */
+    public function _exactPhraseFreq($docId)
+    {
+        $freq = 0;
+
+        // Term Id with lowest cardinality
+        $lowCardTermId = null;
+
+        // Calculate $lowCardTermId
+        foreach ($this->_terms as $termId => $term) {
+            if ($lowCardTermId === null ||
+                count($this->_termsPositions[$termId][$docId]) <
+                count($this->_termsPositions[$lowCardTermId][$docId]) ) {
+                    $lowCardTermId = $termId;
+                }
+        }
+
+        // Walk through positions of the term with lowest cardinality
+        foreach ($this->_termsPositions[$lowCardTermId][$docId] as $lowCardPos) {
+            // We expect phrase to be found
+            $freq++;
+
+            // Walk through other terms
+            foreach ($this->_terms as $termId => $term) {
+                if ($termId != $lowCardTermId) {
+                    $expectedPosition = $lowCardPos +
+                                            ($this->_offsets[$termId] -
+                                             $this->_offsets[$lowCardTermId]);
+
+                    if (!in_array($expectedPosition, $this->_termsPositions[$termId][$docId])) {
+                        $freq--;  // Phrase wasn't found.
+                        break;
+                    }
+                }
+            }
+        }
+
+        return $freq;
+    }
+
+    /**
+     * Score calculator for sloppy phrase queries (terms sequence is fixed)
+     *
+     * @param integer $docId
+     * @param Zend_Search_Lucene $reader
+     * @return float
+     */
+    public function _sloppyPhraseFreq($docId, Zend_Search_Lucene $reader)
+    {
+        $freq = 0;
+
+        $phraseQueue = array();
+        $phraseQueue[0] = array(); // empty phrase
+        $lastTerm = null;
+
+        // Walk through the terms to create phrases.
+        foreach ($this->_terms as $termId => $term) {
+            $queueSize = count($phraseQueue);
+            $firstPass = true;
+
+            // Walk through the term positions.
+            // Each term position produces a set of phrases.
+            foreach ($this->_termsPositions[$termId][$docId] as $termPosition ) {
+                if ($firstPass) {
+                    for ($count = 0; $count < $queueSize; $count++) {
+                        $phraseQueue[$count][$termId] = $termPosition;
+                    }
+                } else {
+                    for ($count = 0; $count < $queueSize; $count++) {
+                        if ($lastTerm !== null &&
+                            abs( $termPosition - $phraseQueue[$count][$lastTerm] -
+                                 ($this->_offsets[$termId] - $this->_offsets[$lastTerm])) > $this->_slop) {
+                            continue;
+                        }
+
+                        $newPhraseId = count($phraseQueue);
+                        $phraseQueue[$newPhraseId]          = $phraseQueue[$count];
+                        $phraseQueue[$newPhraseId][$termId] = $termPosition;
+                    }
+
+                }
+
+                $firstPass = false;
+            }
+            $lastTerm = $termId;
+        }
+
+
+        foreach ($phraseQueue as $phrasePos) {
+            $minDistance = null;
+
+            for ($shift = -$this->_slop; $shift <= $this->_slop; $shift++) {
+                $distance = 0;
+                $start = reset($phrasePos) - reset($this->_offsets) + $shift;
+
+                foreach ($this->_terms as $termId => $term) {
+                    $distance += abs($phrasePos[$termId] - $this->_offsets[$termId] - $start);
+
+                    if($distance > $this->_slop) {
+                        break;
+                    }
+                }
+
+                if ($minDistance === null || $distance < $minDistance) {
+                    $minDistance = $distance;
+                }
+            }
+
+            if ($minDistance <= $this->_slop) {
+                $freq += $reader->getSimilarity()->sloppyFreq($minDistance);
+            }
+        }
+
+        return $freq;
+    }
+
+
+    /**
+     * Score specified document
+     *
+     * @param integer $docId
+     * @param Zend_Search_Lucene $reader
+     * @return float
+     */
+    public function score($docId, $reader)
+    {
+        // optimize zero-term case
+        if (count($this->_terms) == 0) {
+            return 0;
+        }
+
+        if($this->_resVector === null) {
+            $this->_calculateResult($reader);
+            $this->_initWeight($reader);
+        }
+
+        if ( (extension_loaded('bitset')) ?
+                bitset_in($this->_resVector, $docId) :
+                isset($this->_resVector[$docId])  ) {
+            if ($this->_slop == 0) {
+                $freq = $this->_exactPhraseFreq($docId);
+            } else {
+                $freq = $this->_sloppyPhraseFreq($docId, $reader);
+            }
+
+/*
+            return $reader->getSimilarity()->tf($freq) *
+                   $this->_weight->getValue() *
+                   $reader->norm($docId, reset($this->_terms)->field);
+*/
+            if ($freq != 0) {
+                $tf = $reader->getSimilarity()->tf($freq);
+                $weight = $this->_weight->getValue();
+                $norm = $reader->norm($docId, reset($this->_terms)->field);
+
+                return $tf*$weight*$norm;
+            }
+        } else {
+            return 0;
+        }
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/Term.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/Term.php
new file mode 100644
index 00000000..d622f845
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Query/Term.php
@@ -0,0 +1,126 @@
+<?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 Search
+ * @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_Search_Query */
+require_once 'Zend/Search/Lucene/Search/Query.php';
+
+/** Zend_Search_Lucene_Search_Weight_Term */
+require_once 'Zend/Search/Lucene/Search/Weight/Term.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_Query_Term extends Zend_Search_Lucene_Search_Query
+{
+    /**
+     * Term to find.
+     *
+     * @var Zend_Search_Lucene_Index_Term
+     */
+    private $_term;
+
+    /**
+     * Term sign.
+     * If true then term is required
+     * If false then term is prohibited.
+     *
+     * @var bool
+     */
+    private $_sign;
+
+    /**
+     * Documents vector.
+     * Bitset or array of document IDs
+     * (depending from Bitset extension availability).
+     *
+     * @var mixed
+     */
+    private $_docVector = null;
+
+    /**
+     * Term positions vector.
+     * Array: docId => array( pos1, pos2, ... )
+     *
+     * @var array
+     */
+    private $_termPositions;
+
+
+    /**
+     * Zend_Search_Lucene_Search_Query_Term constructor
+     *
+     * @param Zend_Search_Lucene_Index_Term $term
+     * @param boolean $sign
+     */
+    public function __construct( $term, $sign = true )
+    {
+        $this->_term = $term;
+        $this->_sign = $sign;
+    }
+
+
+    /**
+     * Constructs an appropriate Weight implementation for this query.
+     *
+     * @param Zend_Search_Lucene $reader
+     * @return Zend_Search_Lucene_Search_Weight
+     */
+    protected function _createWeight($reader)
+    {
+        return new Zend_Search_Lucene_Search_Weight_Term($this->_term, $this, $reader);
+    }
+
+    /**
+     * Score specified document
+     *
+     * @param integer $docId
+     * @param Zend_Search_Lucene $reader
+     * @return float
+     */
+    public function score( $docId, $reader )
+    {
+        if($this->_docVector===null) {
+            if (extension_loaded('bitset')) {
+                $this->_docVector = bitset_from_array( $reader->termDocs($this->_term) );
+            } else {
+                $this->_docVector = array_flip($reader->termDocs($this->_term));
+            }
+
+            $this->_termPositions = $reader->termPositions($this->_term);
+            $this->_initWeight($reader);
+        }
+
+        $match = extension_loaded('bitset') ?  bitset_in($this->_docVector, $docId) :
+                                               isset($this->_docVector[$docId]);
+        if ($this->_sign && $match) {
+            return $reader->getSimilarity()->tf(count($this->_termPositions[$docId]) ) *
+                   $this->_weight->getValue() *
+                   $reader->norm($docId, $this->_term->field);
+        } else {
+            return 0;
+        }
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryHit.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryHit.php
new file mode 100644
index 00000000..65290a9e
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryHit.php
@@ -0,0 +1,106 @@
+<?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 Search
+ * @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
+ */
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_QueryHit
+{
+    /**
+     * Object handle of the index
+     * @var Zend_Search_Lucene
+     */
+    protected $_index = null;
+
+    /**
+     * Object handle of the document associated with this hit
+     * @var Zend_Search_Lucene_Document
+     */
+    protected $_document = null;
+
+    /**
+     * Number of the document in the index
+     * @var integer
+     */
+    public $id;
+
+    /**
+     * Score of the hit
+     * @var float
+     */
+    public $score;
+
+
+    /**
+     * Constructor - pass object handle of Zend_Search_Lucene index that produced
+     * the hit so the document can be retrieved easily from the hit.
+     *
+     * @param Zend_Search_Lucene $index
+     */
+
+    public function __construct(Zend_Search_Lucene $index)
+    {
+        $this->_index = $index;
+    }
+
+
+    /**
+     * Convenience function for getting fields from the document
+     * associated with this hit.
+     *
+     * @param string $offset
+     * @return string
+     */
+    public function __get($offset)
+    {
+        return $this->getDocument()->getFieldValue($offset);
+    }
+
+
+    /**
+     * Return the document object for this hit
+     *
+     * @return Zend_Search_Lucene_Document
+     */
+    public function getDocument()
+    {
+        if (!$this->_document instanceof Zend_Search_Lucene_Document) {
+            $this->_document = $this->_index->getDocument($this->id);
+        }
+
+        return $this->_document;
+    }
+
+
+    /**
+     * Return the index object for this hit
+     *
+     * @return Zend_Search_Lucene
+     */
+    public function getIndex()
+    {
+        return $this->_index;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryParser.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryParser.php
new file mode 100644
index 00000000..9387afca
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryParser.php
@@ -0,0 +1,140 @@
+<?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 Search
+ * @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_Search_QueryTokenizer */
+require_once 'Zend/Search/Lucene/Search/QueryTokenizer.php';
+
+/** Zend_Search_Lucene_Index_Term */
+require_once 'Zend/Search/Lucene/Index/Term.php';
+
+/** Zend_Search_Lucene_Search_Query_Term */
+require_once 'Zend/Search/Lucene/Search/Query/Term.php';
+
+/** Zend_Search_Lucene_Search_Query_MultiTerm */
+require_once 'Zend/Search/Lucene/Search/Query/MultiTerm.php';
+
+/** Zend_Search_Lucene_Search_Query_Phrase */
+require_once 'Zend/Search/Lucene/Search/Query/Phrase.php';
+
+
+/** Zend_Search_Lucene_Exception */
+require_once 'Zend/Search/Lucene/Exception.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_QueryParser
+{
+
+    /**
+     * Parses a query string, returning a Zend_Search_Lucene_Search_Query
+     *
+     * @param string $strQuery
+     * @return Zend_Search_Lucene_Search_Query
+     */
+    static public function parse($strQuery)
+    {
+        $tokens = new Zend_Search_Lucene_Search_QueryTokenizer($strQuery);
+
+        // Empty query
+        if (!$tokens->count()) {
+            throw new Zend_Search_Lucene_Exception('Syntax error: query string cannot be empty.');
+        }
+
+        // Term query
+        if ($tokens->count() == 1) {
+            if ($tokens->current()->type == Zend_Search_Lucene_Search_QueryToken::TOKTYPE_WORD) {
+                return new Zend_Search_Lucene_Search_Query_Term(new Zend_Search_Lucene_Index_Term($tokens->current()->text, 'contents'));
+            } else {
+                throw new Zend_Search_Lucene_Exception('Syntax error: query string must contain at least one word.');
+            }
+        }
+
+
+        /**
+         * MultiTerm Query
+         *
+         * Process each token that was returned by the tokenizer.
+         */
+        $terms = array();
+        $signs = array();
+        $prevToken = null;
+        $openBrackets = 0;
+        $field = 'contents';
+        foreach ($tokens as $token) {
+            switch ($token->type) {
+                case Zend_Search_Lucene_Search_QueryToken::TOKTYPE_WORD:
+                    $terms[] = new Zend_Search_Lucene_Index_Term($token->text, $field);
+                    $field = 'contents';
+                    if ($prevToken !== null &&
+                        $prevToken->type == Zend_Search_Lucene_Search_QueryToken::TOKTYPE_SIGN) {
+                            if ($prevToken->text == "+") {
+                                $signs[] = true;
+                            } else {
+                                $signs[] = false;
+                            }
+                    } else {
+                        $signs[] = null;
+                    }
+                    break;
+                case Zend_Search_Lucene_Search_QueryToken::TOKTYPE_SIGN:
+                    if ($prevToken !== null &&
+                        $prevToken->type == Zend_Search_Lucene_Search_QueryToken::TOKTYPE_SIGN) {
+                            throw new Zend_Search_Lucene_Exception('Syntax error: sign operator must be followed by a word.');
+                    }
+                    break;
+                case Zend_Search_Lucene_Search_QueryToken::TOKTYPE_FIELD:
+                    $field = $token->text;
+                    // let previous token to be signed as next $prevToken
+                    $token = $prevToken;
+                    break;
+                case Zend_Search_Lucene_Search_QueryToken::TOKTYPE_BRACKET:
+                    $token->text=='(' ? $openBrackets++ : $openBrackets--;
+            }
+            $prevToken = $token;
+        }
+
+        // Finish up parsing: check the last token in the query for an opening sign or parenthesis.
+        if ($prevToken->type == Zend_Search_Lucene_Search_QueryToken::TOKTYPE_SIGN) {
+            throw new Zend_Search_Lucene_Exception('Syntax Error: sign operator must be followed by a word.');
+        }
+
+        // Finish up parsing: check that every opening bracket has a matching closing bracket.
+        if ($openBrackets != 0) {
+            throw new Zend_Search_Lucene_Exception('Syntax Error: mismatched parentheses, every opening must have closing.');
+        }
+
+        switch (count($terms)) {
+            case 0:
+                throw new Zend_Search_Lucene_Exception('Syntax error: bad term count.');
+            case 1:
+                return new Zend_Search_Lucene_Search_Query_Term($terms[0],$signs[0] !== false);
+            default:
+                return new Zend_Search_Lucene_Search_Query_MultiTerm($terms,$signs);
+        }
+    }
+
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryToken.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryToken.php
new file mode 100644
index 00000000..995e0d3c
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryToken.php
@@ -0,0 +1,102 @@
+<?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 Search
+ * @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_Exception */
+require_once 'Zend/Search/Lucene/Exception.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_QueryToken
+{
+    /**
+     * Token type Word.
+     */
+    const TOKTYPE_WORD = 0;
+
+    /**
+     * Token type Field.
+     * Field indicator in 'field:word' pair
+     */
+    const TOKTYPE_FIELD = 1;
+
+    /**
+     * Token type Sign.
+     * '+' (required) or '-' (absentee) sign
+     */
+    const TOKTYPE_SIGN = 2;
+
+    /**
+     * Token type Bracket.
+     * '(' or ')'
+     */
+    const TOKTYPE_BRACKET = 3;
+
+
+    /**
+     * Token type.
+     *
+     * @var integer
+     */
+    public $type;
+
+    /**
+     * Token text.
+     *
+     * @var integer
+     */
+    public $text;
+
+
+    /**
+     * IndexReader constructor needs token type and token text as a parameters.
+     *
+     * @param $tokType integer
+     * @param $tokText string
+     */
+    public function __construct($tokType, $tokText)
+    {
+        switch ($tokType) {
+            case self::TOKTYPE_BRACKET:
+                // fall through to the next case
+            case self::TOKTYPE_FIELD:
+                // fall through to the next case
+            case self::TOKTYPE_SIGN:
+                // fall through to the next case
+            case self::TOKTYPE_WORD:
+                break;
+            default:
+                throw new Zend_Search_Lucene_Exception("Unrecognized token type \"$tokType\".");
+        }
+
+        if (!strlen($tokText)) {
+            throw new Zend_Search_Lucene_Exception('Token text must be supplied.');
+        }
+
+        $this->type = $tokType;
+        $this->text = $tokText;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryTokenizer.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryTokenizer.php
new file mode 100644
index 00000000..986f8899
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/QueryTokenizer.php
@@ -0,0 +1,162 @@
+<?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 Search
+ * @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_Search_QueryToken */
+require_once 'Zend/Search/Lucene/Search/QueryToken.php';
+
+/** Zend_Search_Lucene_Exception */
+require_once 'Zend/Search/Lucene/Exception.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_QueryTokenizer implements Iterator
+{
+    /**
+     * inputString tokens.
+     *
+     * @var array
+     */
+    protected $_tokens = array();
+
+    /**
+     * tokens pointer.
+     *
+     * @var integer
+     */
+    protected $_currToken = 0;
+
+
+    /**
+     * QueryTokenize constructor needs query string as a parameter.
+     *
+     * @param string $inputString
+     */
+    public function __construct($inputString)
+    {
+        if (!strlen($inputString)) {
+            throw new Zend_Search_Lucene_Exception('Cannot tokenize empty query string.');
+        }
+
+        $currentToken = '';
+        for ($count = 0; $count < strlen($inputString); $count++) {
+            if (ctype_alnum( $inputString{$count} )) {
+                $currentToken .= $inputString{$count};
+            } else {
+                // Previous token is finished
+                if (strlen($currentToken)) {
+                    $this->_tokens[] = new Zend_Search_Lucene_Search_QueryToken(Zend_Search_Lucene_Search_QueryToken::TOKTYPE_WORD,
+                                                                $currentToken);
+                    $currentToken = '';
+                }
+
+                if ($inputString{$count} == '+' || $inputString{$count} == '-') {
+                    $this->_tokens[] = new Zend_Search_Lucene_Search_QueryToken(Zend_Search_Lucene_Search_QueryToken::TOKTYPE_SIGN,
+                                                                $inputString{$count});
+                } elseif ($inputString{$count} == '(' || $inputString{$count} == ')') {
+                    $this->_tokens[] = new Zend_Search_Lucene_Search_QueryToken(Zend_Search_Lucene_Search_QueryToken::TOKTYPE_BRACKET,
+                                                                $inputString{$count});
+                } elseif ($inputString{$count} == ':' && $this->count()) {
+                    if ($this->_tokens[count($this->_tokens)-1]->type == Zend_Search_Lucene_Search_QueryToken::TOKTYPE_WORD) {
+                        $this->_tokens[count($this->_tokens)-1]->type = Zend_Search_Lucene_Search_QueryToken::TOKTYPE_FIELD;
+                    }
+                }
+            }
+        }
+
+        if (strlen($currentToken)) {
+            $this->_tokens[] = new Zend_Search_Lucene_Search_QueryToken(Zend_Search_Lucene_Search_QueryToken::TOKTYPE_WORD, $currentToken);
+        }
+    }
+
+
+    /**
+     * Returns number of tokens
+     *
+     * @return integer
+     */
+    public function count()
+    {
+        return count($this->_tokens);
+    }
+
+
+    /**
+     * Returns TRUE if a token exists at the current position.
+     *
+     * @return boolean
+     */
+    public function valid()
+    {
+        return $this->_currToken < $this->count();
+    }
+
+
+    /**
+     * Resets token stream.
+     *
+     * @return integer
+     */
+    public function rewind()
+    {
+        $this->_currToken = 0;
+    }
+
+
+    /**
+     * Returns the token at the current position or FALSE if
+     * the position does not contain a valid token.
+     *
+     * @return mixed
+     */
+    public function current()
+    {
+        return $this->valid() ? $this->_tokens[$this->_currToken] : false;
+    }
+
+
+    /**
+     * Returns next token
+     *
+     * @return Zend_Search_Lucene_Search_QueryToken
+     */
+    public function next()
+    {
+        return ++$this->_currToken;
+    }
+
+
+    /**
+     * Return the position of the current token.
+     *
+     * @return integer
+     */
+    public function key()
+    {
+        return $this->_currToken;
+    }
+
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Similarity.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Similarity.php
new file mode 100644
index 00000000..8b758213
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Similarity.php
@@ -0,0 +1,551 @@
+<?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 Search
+ * @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_Search_Similarity_Default */
+require_once 'Zend/Search/Lucene/Search/Similarity/Default.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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_Search_Similarity
+{
+    /**
+     * The Similarity implementation used by default.
+     *
+     * @var Zend_Search_Lucene_Search_Similarity
+     */
+    static private $_defaultImpl;
+
+    /**
+     * Cache of decoded bytes.
+     * Array of floats
+     *
+     * @var array
+     */
+    static private $_normTable = array( 0   => 0.0,
+                                        1   => 5.820766E-10,
+                                        2   => 6.9849193E-10,
+                                        3   => 8.1490725E-10,
+                                        4   => 9.313226E-10,
+                                        5   => 1.1641532E-9,
+                                        6   => 1.3969839E-9,
+                                        7   => 1.6298145E-9,
+                                        8   => 1.8626451E-9,
+                                        9   => 2.3283064E-9,
+                                        10  => 2.7939677E-9,
+                                        11  => 3.259629E-9,
+                                        12  => 3.7252903E-9,
+                                        13  => 4.656613E-9,
+                                        14  => 5.5879354E-9,
+                                        15  => 6.519258E-9,
+                                        16  => 7.4505806E-9,
+                                        17  => 9.313226E-9,
+                                        18  => 1.1175871E-8,
+                                        19  => 1.3038516E-8,
+                                        20  => 1.4901161E-8,
+                                        21  => 1.8626451E-8,
+                                        22  => 2.2351742E-8,
+                                        23  => 2.6077032E-8,
+                                        24  => 2.9802322E-8,
+                                        25  => 3.7252903E-8,
+                                        26  => 4.4703484E-8,
+                                        27  => 5.2154064E-8,
+                                        28  => 5.9604645E-8,
+                                        29  => 7.4505806E-8,
+                                        30  => 8.940697E-8,
+                                        31  => 1.0430813E-7,
+                                        32  => 1.1920929E-7,
+                                        33  => 1.4901161E-7,
+                                        34  => 1.7881393E-7,
+                                        35  => 2.0861626E-7,
+                                        36  => 2.3841858E-7,
+                                        37  => 2.9802322E-7,
+                                        38  => 3.5762787E-7,
+                                        39  => 4.172325E-7,
+                                        40  => 4.7683716E-7,
+                                        41  => 5.9604645E-7,
+                                        42  => 7.1525574E-7,
+                                        43  => 8.34465E-7,
+                                        44  => 9.536743E-7,
+                                        45  => 1.1920929E-6,
+                                        46  => 1.4305115E-6,
+                                        47  => 1.66893E-6,
+                                        48  => 1.9073486E-6,
+                                        49  => 2.3841858E-6,
+                                        50  => 2.861023E-6,
+                                        51  => 3.33786E-6,
+                                        52  => 3.8146973E-6,
+                                        53  => 4.7683716E-6,
+                                        54  => 5.722046E-6,
+                                        55  => 6.67572E-6,
+                                        56  => 7.6293945E-6,
+                                        57  => 9.536743E-6,
+                                        58  => 1.1444092E-5,
+                                        59  => 1.335144E-5,
+                                        60  => 1.5258789E-5,
+                                        61  => 1.9073486E-5,
+                                        62  => 2.2888184E-5,
+                                        63  => 2.670288E-5,
+                                        64  => 3.0517578E-5,
+                                        65  => 3.8146973E-5,
+                                        66  => 4.5776367E-5,
+                                        67  => 5.340576E-5,
+                                        68  => 6.1035156E-5,
+                                        69  => 7.6293945E-5,
+                                        70  => 9.1552734E-5,
+                                        71  => 1.0681152E-4,
+                                        72  => 1.2207031E-4,
+                                        73  => 1.5258789E-4,
+                                        74  => 1.8310547E-4,
+                                        75  => 2.1362305E-4,
+                                        76  => 2.4414062E-4,
+                                        77  => 3.0517578E-4,
+                                        78  => 3.6621094E-4,
+                                        79  => 4.272461E-4,
+                                        80  => 4.8828125E-4,
+                                        81  => 6.1035156E-4,
+                                        82  => 7.324219E-4,
+                                        83  => 8.544922E-4,
+                                        84  => 9.765625E-4,
+                                        85  => 0.0012207031,
+                                        86  => 0.0014648438,
+                                        87  => 0.0017089844,
+                                        88  => 0.001953125,
+                                        89  => 0.0024414062,
+                                        90  => 0.0029296875,
+                                        91  => 0.0034179688,
+                                        92  => 0.00390625,
+                                        93  => 0.0048828125,
+                                        94  => 0.005859375,
+                                        95  => 0.0068359375,
+                                        96  => 0.0078125,
+                                        97  => 0.009765625,
+                                        98  => 0.01171875,
+                                        99  => 0.013671875,
+                                        100 => 0.015625,
+                                        101 => 0.01953125,
+                                        102 => 0.0234375,
+                                        103 => 0.02734375,
+                                        104 => 0.03125,
+                                        105 => 0.0390625,
+                                        106 => 0.046875,
+                                        107 => 0.0546875,
+                                        108 => 0.0625,
+                                        109 => 0.078125,
+                                        110 => 0.09375,
+                                        111 => 0.109375,
+                                        112 => 0.125,
+                                        113 => 0.15625,
+                                        114 => 0.1875,
+                                        115 => 0.21875,
+                                        116 => 0.25,
+                                        117 => 0.3125,
+                                        118 => 0.375,
+                                        119 => 0.4375,
+                                        120 => 0.5,
+                                        121 => 0.625,
+                                        122 => 0.75,
+                                        123 => 0.875,
+                                        124 => 1.0,
+                                        125 => 1.25,
+                                        126 => 1.5,
+                                        127 => 1.75,
+                                        128 => 2.0,
+                                        129 => 2.5,
+                                        130 => 3.0,
+                                        131 => 3.5,
+                                        132 => 4.0,
+                                        133 => 5.0,
+                                        134 => 6.0,
+                                        135 => 7.0,
+                                        136 => 8.0,
+                                        137 => 10.0,
+                                        138 => 12.0,
+                                        139 => 14.0,
+                                        140 => 16.0,
+                                        141 => 20.0,
+                                        142 => 24.0,
+                                        143 => 28.0,
+                                        144 => 32.0,
+                                        145 => 40.0,
+                                        146 => 48.0,
+                                        147 => 56.0,
+                                        148 => 64.0,
+                                        149 => 80.0,
+                                        150 => 96.0,
+                                        151 => 112.0,
+                                        152 => 128.0,
+                                        153 => 160.0,
+                                        154 => 192.0,
+                                        155 => 224.0,
+                                        156 => 256.0,
+                                        157 => 320.0,
+                                        158 => 384.0,
+                                        159 => 448.0,
+                                        160 => 512.0,
+                                        161 => 640.0,
+                                        162 => 768.0,
+                                        163 => 896.0,
+                                        164 => 1024.0,
+                                        165 => 1280.0,
+                                        166 => 1536.0,
+                                        167 => 1792.0,
+                                        168 => 2048.0,
+                                        169 => 2560.0,
+                                        170 => 3072.0,
+                                        171 => 3584.0,
+                                        172 => 4096.0,
+                                        173 => 5120.0,
+                                        174 => 6144.0,
+                                        175 => 7168.0,
+                                        176 => 8192.0,
+                                        177 => 10240.0,
+                                        178 => 12288.0,
+                                        179 => 14336.0,
+                                        180 => 16384.0,
+                                        181 => 20480.0,
+                                        182 => 24576.0,
+                                        183 => 28672.0,
+                                        184 => 32768.0,
+                                        185 => 40960.0,
+                                        186 => 49152.0,
+                                        187 => 57344.0,
+                                        188 => 65536.0,
+                                        189 => 81920.0,
+                                        190 => 98304.0,
+                                        191 => 114688.0,
+                                        192 => 131072.0,
+                                        193 => 163840.0,
+                                        194 => 196608.0,
+                                        195 => 229376.0,
+                                        196 => 262144.0,
+                                        197 => 327680.0,
+                                        198 => 393216.0,
+                                        199 => 458752.0,
+                                        200 => 524288.0,
+                                        201 => 655360.0,
+                                        202 => 786432.0,
+                                        203 => 917504.0,
+                                        204 => 1048576.0,
+                                        205 => 1310720.0,
+                                        206 => 1572864.0,
+                                        207 => 1835008.0,
+                                        208 => 2097152.0,
+                                        209 => 2621440.0,
+                                        210 => 3145728.0,
+                                        211 => 3670016.0,
+                                        212 => 4194304.0,
+                                        213 => 5242880.0,
+                                        214 => 6291456.0,
+                                        215 => 7340032.0,
+                                        216 => 8388608.0,
+                                        217 => 1.048576E7,
+                                        218 => 1.2582912E7,
+                                        219 => 1.4680064E7,
+                                        220 => 1.6777216E7,
+                                        221 => 2.097152E7,
+                                        222 => 2.5165824E7,
+                                        223 => 2.9360128E7,
+                                        224 => 3.3554432E7,
+                                        225 => 4.194304E7,
+                                        226 => 5.0331648E7,
+                                        227 => 5.8720256E7,
+                                        228 => 6.7108864E7,
+                                        229 => 8.388608E7,
+                                        230 => 1.00663296E8,
+                                        231 => 1.17440512E8,
+                                        232 => 1.34217728E8,
+                                        233 => 1.6777216E8,
+                                        234 => 2.01326592E8,
+                                        235 => 2.34881024E8,
+                                        236 => 2.68435456E8,
+                                        237 => 3.3554432E8,
+                                        238 => 4.02653184E8,
+                                        239 => 4.69762048E8,
+                                        240 => 5.3687091E8,
+                                        241 => 6.7108864E8,
+                                        242 => 8.0530637E8,
+                                        243 => 9.395241E8,
+                                        244 => 1.07374182E9,
+                                        245 => 1.34217728E9,
+                                        246 => 1.61061274E9,
+                                        247 => 1.87904819E9,
+                                        248 => 2.14748365E9,
+                                        249 => 2.68435456E9,
+                                        250 => 3.22122547E9,
+                                        251 => 3.75809638E9,
+                                        252 => 4.2949673E9,
+                                        253 => 5.3687091E9,
+                                        254 => 6.4424509E9,
+                                        255 => 7.5161928E9 );
+
+
+    /**
+     * Set the default Similarity implementation used by indexing and search
+     * code.
+     *
+     * @param Zend_Search_Lucene_Search_Similarity $similarity
+     */
+    static public function setDefault(Zend_Search_Lucene_Search_Similarity $similarity)
+    {
+        self::$_defaultImpl = $similarity;
+    }
+
+
+    /**
+     * Return the default Similarity implementation used by indexing and search
+     * code.
+     *
+     * @return Zend_Search_Lucene_Search_Similarity
+     */
+    static public function getDefault()
+    {
+        if (!self::$_defaultImpl instanceof Zend_Search_Lucene_Search_Similarity) {
+            self::$_defaultImpl = new Zend_Search_Lucene_Search_Similarity_Default();
+        }
+
+        return self::$_defaultImpl;
+    }
+
+
+    /**
+     * Computes the normalization value for a field given the total number of
+     * terms contained in a field.  These values, together with field boosts, are
+     * stored in an index and multipled into scores for hits on each field by the
+     * search code.
+     *
+     * Matches in longer fields are less precise, so implemenations of this
+     * method usually return smaller values when 'numTokens' is large,
+     * and larger values when 'numTokens' is small.
+     *
+     * That these values are computed under
+     * IndexWriter::addDocument(Document) and stored then using
+     * encodeNorm(float).  Thus they have limited precision, and documents
+     * must be re-indexed if this method is altered.
+     *
+     * fieldName - name of field
+     * numTokens - the total number of tokens contained in fields named
+     *             'fieldName' of 'doc'.
+     * Returns a normalization factor for hits on this field of this document
+     *
+     * @param string $fieldName
+     * @param integer $numTokens
+     * @return float
+     */
+    abstract public function lengthNorm($fieldName, $numTokens);
+
+    /**
+     * Computes the normalization value for a query given the sum of the squared
+     * weights of each of the query terms.  This value is then multipled into the
+     * weight of each query term.
+     *
+     * This does not affect ranking, but rather just attempts to make scores
+     * from different queries comparable.
+     *
+     * sumOfSquaredWeights - the sum of the squares of query term weights
+     * Returns a normalization factor for query weights
+     *
+     * @param float $sumOfSquaredWeights
+     * @return float
+     */
+    abstract public function queryNorm($sumOfSquaredWeights);
+
+
+    /**
+     *  Decodes a normalization factor stored in an index.
+     *
+     * @param integer $byte
+     * @return float
+     */
+    static public function decodeNorm($byte)
+    {
+        return self::$_normTable[$byte & 0xFF];
+    }
+
+
+    /**
+     * Encodes a normalization factor for storage in an index.
+     *
+     * The encoding uses a five-bit exponent and three-bit mantissa, thus
+     * representing values from around 7x10^9 to 2x10^-9 with about one
+     * significant decimal digit of accuracy.  Zero is also represented.
+     * Negative numbers are rounded up to zero.  Values too large to represent
+     * are rounded down to the largest representable value.  Positive values too
+     * small to represent are rounded up to the smallest positive representable
+     * value.
+     *
+     * @param float $f
+     * @return integer
+     */
+    static function encodeNorm($f)
+    {
+      return self::_floatToByte($f);
+    }
+
+    /**
+     * Float to byte conversion
+     *
+     * @param integer $b
+     * @return float
+     */
+    static private function _floatToByte($f)
+    {
+        // round negatives up to zero
+        if ($f <= 0.0) {
+            return 0;
+        }
+
+        // search for appropriate value
+        $lowIndex = 0;
+        $highIndex = 255;
+        while ($highIndex >= $lowIndex) {
+            // $mid = ($highIndex - $lowIndex)/2;
+            $mid = ($highIndex + $lowIndex) >> 1;
+            $delta = $f - self::$_normTable[$mid];
+
+            if ($delta < 0) {
+                $highIndex = $mid-1;
+            } elseif ($delta > 0) {
+                $lowIndex  = $mid+1;
+            } else {
+                return $mid; // We got it!
+            }
+        }
+
+        // round to closest value
+        if ($highIndex != 255 &&
+            $f - self::$_normTable[$highIndex] > self::$_normTable[$highIndex+1] - $f ) {
+            return $highIndex + 1;
+        } else {
+            return $highIndex;
+        }
+    }
+
+
+    /**
+     * Computes a score factor based on a term or phrase's frequency in a
+     * document.  This value is multiplied by the idf(Term, Searcher)
+     * factor for each term in the query and these products are then summed to
+     * form the initial score for a document.
+     *
+     * Terms and phrases repeated in a document indicate the topic of the
+     * document, so implementations of this method usually return larger values
+     * when 'freq' is large, and smaller values when 'freq'
+     * is small.
+     *
+     * freq - the frequency of a term within a document
+     * Returns a score factor based on a term's within-document frequency
+     *
+     * @param float $freq
+     * @return float
+     */
+    abstract public function tf($freq);
+
+    /**
+     * Computes the amount of a sloppy phrase match, based on an edit distance.
+     * This value is summed for each sloppy phrase match in a document to form
+     * the frequency that is passed to tf(float).
+     *
+     * A phrase match with a small edit distance to a document passage more
+     * closely matches the document, so implementations of this method usually
+     * return larger values when the edit distance is small and smaller values
+     * when it is large.
+     *
+     * distance - the edit distance of this sloppy phrase match
+     * Returns the frequency increment for this match
+     *
+     * @param integer $distance
+     * @return float
+     */
+    abstract public function sloppyFreq($distance);
+
+
+    /**
+     * Computes a score factor for a simple term or a phrase.
+     *
+     * The default implementation is:
+     *   return idfFreq(searcher.docFreq(term), searcher.maxDoc());
+     *
+     * input - the term in question or array of terms
+     * reader - reader the document collection being searched
+     * Returns a score factor for the term
+     *
+     * @param mixed $input
+     * @param Zend_Search_Lucene $reader
+     * @return a score factor for the term
+     */
+    public function idf($input, $reader)
+    {
+        if (!is_array($input)) {
+            return $this->idfFreq($reader->docFreq($input), $reader->count());
+        } else {
+            $idf = 0.0;
+            foreach ($input as $term) {
+                $idf += $this->idfFreq($reader->docFreq($term), $reader->count());
+            }
+            return $idf;
+        }
+    }
+
+    /**
+     * Computes a score factor based on a term's document frequency (the number
+     * of documents which contain the term).  This value is multiplied by the
+     * tf(int) factor for each term in the query and these products are
+     * then summed to form the initial score for a document.
+     *
+     * Terms that occur in fewer documents are better indicators of topic, so
+     * implemenations of this method usually return larger values for rare terms,
+     * and smaller values for common terms.
+     *
+     * docFreq - the number of documents which contain the term
+     * numDocs - the total number of documents in the collection
+     * Returns a score factor based on the term's document frequency
+     *
+     * @param integer $docFreq
+     * @param integer $numDocs
+     * @return float
+     */
+    abstract public function idfFreq($docFreq, $numDocs);
+
+    /**
+     * Computes a score factor based on the fraction of all query terms that a
+     * document contains.  This value is multiplied into scores.
+     *
+     * The presence of a large portion of the query terms indicates a better
+     * match with the query, so implemenations of this method usually return
+     * larger values when the ratio between these parameters is large and smaller
+     * values when the ratio between them is small.
+     *
+     * overlap - the number of query terms matched in the document
+     * maxOverlap - the total number of terms in the query
+     * Returns a score factor based on term overlap with the query
+     *
+     * @param integer $overlap
+     * @param integer $maxOverlap
+     * @return float
+     */
+    abstract public function coord($overlap, $maxOverlap);
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Similarity/Default.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Similarity/Default.php
new file mode 100644
index 00000000..1551d8bd
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Similarity/Default.php
@@ -0,0 +1,99 @@
+<?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 Search
+ * @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
+ */
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_Similarity_Default extends Zend_Search_Lucene_Search_Similarity
+{
+
+    /**
+     * Implemented as '1/sqrt(numTerms)'.
+     *
+     * @param string $fieldName
+     * @param integer numTerms
+     * @return float
+     */
+    public function lengthNorm($fieldName, $numTerms)
+    {
+        return 1.0/sqrt($numTerms);
+    }
+
+    /**
+     * Implemented as '1/sqrt(sumOfSquaredWeights)'.
+     *
+     * @param float $sumOfSquaredWeights
+     * @return float
+     */
+    public function queryNorm($sumOfSquaredWeights)
+    {
+        return 1.0/sqrt($sumOfSquaredWeights);
+    }
+
+    /**
+     * Implemented as 'sqrt(freq)'.
+     *
+     * @param float $freq
+     * @return float
+     */
+    public function tf($freq)
+    {
+        return sqrt($freq);
+    }
+
+    /**
+     * Implemented as '1/(distance + 1)'.
+     *
+     * @param integer $distance
+     * @return float
+     */
+    public function sloppyFreq($distance)
+    {
+        return 1.0/($distance + 1);
+    }
+
+    /**
+     * Implemented as 'log(numDocs/(docFreq+1)) + 1'.
+     *
+     * @param integer $docFreq
+     * @param integer $numDocs
+     * @return float
+     */
+    public function idfFreq($docFreq, $numDocs)
+    {
+        return log($numDocs/(float)($docFreq+1)) + 1.0;
+    }
+
+    /**
+     * Implemented as 'overlap/maxOverlap'.
+     *
+     * @param integer $overlap
+     * @param integer $maxOverlap
+     * @return float
+     */
+    public function coord($overlap, $maxOverlap)
+    {
+        return $overlap/(float)$maxOverlap;
+    }
+}
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight.php
new file mode 100644
index 00000000..2d5b7a72
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight.php
@@ -0,0 +1,59 @@
+<?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 Search
+ * @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
+ */
+
+
+/**
+ * Calculate query weights and build query scorers.
+ *
+ * A Weight is constructed by a query Query->createWeight().
+ * The sumOfSquaredWeights() method is then called on the top-level
+ * query to compute the query normalization factor Similarity->queryNorm(float).
+ * This factor is then passed to normalize(float).  At this point the weighting
+ * is complete.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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_Search_Weight
+{
+    /**
+     * The weight for this query.
+     *
+     * @return float
+     */
+    abstract public function getValue();
+
+    /**
+     * The sum of squared weights of contained query clauses.
+     *
+     * @return float
+     */
+    abstract public function sumOfSquaredWeights();
+
+    /**
+     * Assigns the query normalization factor to this.
+     *
+     * @param $norm
+     */
+    abstract public function normalize($norm);
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/MultiTerm.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/MultiTerm.php
new file mode 100644
index 00000000..69528ba4
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/MultiTerm.php
@@ -0,0 +1,133 @@
+<?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 Search
+ * @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_Search_Weight */
+require_once 'Zend/Search/Lucene/Search/Weight.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_Weight_MultiTerm extends Zend_Search_Lucene_Search_Weight
+{
+    /**
+     * IndexReader.
+     *
+     * @var Zend_Search_Lucene
+     */
+    private $_reader;
+
+    /**
+     * The query that this concerns.
+     *
+     * @var Zend_Search_Lucene_Search_Query_MultiTerm
+     */
+    private $_query;
+
+    /**
+     * Query terms weights
+     * Array of Zend_Search_Lucene_Search_Weight_Term
+     *
+     * @var array
+     */
+    private $_weights;
+
+
+    /**
+     * Zend_Search_Lucene_Search_Weight_MultiTerm constructor
+     * query - the query that this concerns.
+     * reader - index reader
+     *
+     * @param Zend_Search_Lucene_Search_Query_MultiTerm $query
+     * @param Zend_Search_Lucene $reader
+     */
+    public function __construct($query, $reader)
+    {
+        $this->_query   = $query;
+        $this->_reader  = $reader;
+        $this->_weights = array();
+
+        $signs = $query->getSigns();
+
+        foreach ($query->getTerms() as $num => $term) {
+            if ($signs === null || $signs[$num] === null || $signs[$num]) {
+                $this->_weights[$num] = new Zend_Search_Lucene_Search_Weight_Term($term, $query, $reader);
+                $query->setWeight($num, $this->_weights[$num]);
+            }
+        }
+    }
+
+
+    /**
+     * The weight for this query
+     *
+     * @return float
+     */
+    public function getValue()
+    {
+        return $this->_query->getBoost();
+    }
+
+
+    /**
+     * The sum of squared weights of contained query clauses.
+     *
+     * @return float
+     */
+    public function sumOfSquaredWeights()
+    {
+        $sum = 0;
+        foreach ($this->_weights as $weight) {
+            // sum sub weights
+            $sum += $weight->sumOfSquaredWeights();
+        }
+
+        // boost each sub-weight
+        $sum *= $this->_query->getBoost() * $this->_query->getBoost();
+
+        // check for empty query (like '-something -another')
+        if ($sum == 0) {
+            $sum = 1.0;
+        }
+        return $sum;
+    }
+
+
+    /**
+     * Assigns the query normalization factor to this.
+     *
+     * @param float $queryNorm
+     */
+    public function normalize($queryNorm)
+    {
+        // incorporate boost
+        $queryNorm *= $this->_query->getBoost();
+
+        foreach ($this->_weights as $weight) {
+            $weight->normalize($queryNorm);
+        }
+    }
+}
+
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/Phrase.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/Phrase.php
new file mode 100644
index 00000000..77e94f28
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/Phrase.php
@@ -0,0 +1,138 @@
+<?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 Search
+ * @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_Search_Weight
+ */
+require_once 'Zend/Search/Lucene/Search/Weight.php';
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_Weight_Phrase extends Zend_Search_Lucene_Search_Weight
+{
+    /**
+     * IndexReader.
+     *
+     * @var Zend_Search_Lucene
+     */
+    private $_reader;
+
+    /**
+     * The query that this concerns.
+     *
+     * @var Zend_Search_Lucene_Search_Query_Phrase
+     */
+    private $_query;
+
+    /**
+     * Weight value
+     *
+     * @var float
+     */
+    private $_value;
+
+    /**
+     * Score factor
+     *
+     * @var float
+     */
+    private $_idf;
+
+    /**
+     * Normalization factor
+     *
+     * @var float
+     */
+    private $_queryNorm;
+
+
+    /**
+     * Query weight
+     *
+     * @var float
+     */
+    private $_queryWeight;
+
+
+    /**
+     * Zend_Search_Lucene_Search_Weight_Phrase constructor
+     *
+     * @param Zend_Search_Lucene_Search_Query_Phrase $query
+     * @param Zend_Search_Lucene $reader
+     */
+    public function __construct(Zend_Search_Lucene_Search_Query_Phrase $query, Zend_Search_Lucene $reader)
+    {
+        $this->_query  = $query;
+        $this->_reader = $reader;
+    }
+
+
+    /**
+     * The weight for this query
+     *
+     * @return float
+     */
+    public function getValue()
+    {
+        return $this->_value;
+    }
+
+
+    /**
+     * The sum of squared weights of contained query clauses.
+     *
+     * @return float
+     */
+    public function sumOfSquaredWeights()
+    {
+        // compute idf
+        $this->_idf = $this->_reader->getSimilarity()->idf($this->_query->getTerms(), $this->_reader);
+
+        // compute query weight
+        $this->_queryWeight = $this->_idf * $this->_query->getBoost();
+
+        // square it
+        return $this->_queryWeight * $this->_queryWeight;
+    }
+
+
+    /**
+     * Assigns the query normalization factor to this.
+     *
+     * @param float $queryNorm
+     */
+    public function normalize($queryNorm)
+    {
+        $this->_queryNorm = $queryNorm;
+
+        // normalize query weight
+        $this->_queryWeight *= $queryNorm;
+
+        // idf for documents
+        $this->_value = $this->_queryWeight * $this->_idf;
+    }
+}
+
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/Term.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/Term.php
new file mode 100644
index 00000000..3e6102f3
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/Term.php
@@ -0,0 +1,144 @@
+<?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 Search
+ * @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_Search_Weight */
+require_once 'Zend/Search/Lucene/Search/Weight.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @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
+ */
+class Zend_Search_Lucene_Search_Weight_Term extends Zend_Search_Lucene_Search_Weight
+{
+    /**
+     * IndexReader.
+     *
+     * @var Zend_Search_Lucene
+     */
+    private $_reader;
+
+    /**
+     * Term
+     *
+     * @var Zend_Search_Lucene_Index_Term
+     */
+    private $_term;
+
+    /**
+     * The query that this concerns.
+     *
+     * @var Zend_Search_Lucene_Search_Query
+     */
+    private $_query;
+
+    /**
+     * Weight value
+     *
+     * @var float
+     */
+    private $_value;
+
+    /**
+     * Score factor
+     *
+     * @var float
+     */
+    private $_idf;
+
+    /**
+     * Normalization factor
+     *
+     * @var float
+     */
+    private $_queryNorm;
+
+
+    /**
+     * Query weight
+     *
+     * @var float
+     */
+    private $_queryWeight;
+
+
+    /**
+     * Zend_Search_Lucene_Search_Weight_Term constructor
+     * reader - index reader
+     *
+     * @param Zend_Search_Lucene $reader
+     */
+    public function __construct($term, $query, $reader)
+    {
+        $this->_term   = $term;
+        $this->_query  = $query;
+        $this->_reader = $reader;
+    }
+
+
+    /**
+     * The weight for this query
+     *
+     * @return float
+     */
+    public function getValue()
+    {
+        return $this->_value;
+    }
+
+
+    /**
+     * The sum of squared weights of contained query clauses.
+     *
+     * @return float
+     */
+    public function sumOfSquaredWeights()
+    {
+        // compute idf
+        $this->_idf = $this->_reader->getSimilarity()->idf($this->_term, $this->_reader);
+
+        // compute query weight
+        $this->_queryWeight = $this->_idf * $this->_query->getBoost();
+
+        // square it
+        return $this->_queryWeight * $this->_queryWeight;
+    }
+
+
+    /**
+     * Assigns the query normalization factor to this.
+     *
+     * @param float $queryNorm
+     */
+    public function normalize($queryNorm)
+    {
+        $this->_queryNorm = $queryNorm;
+
+        // normalize query weight
+        $this->_queryWeight *= $queryNorm;
+
+        // idf for documents
+        $this->_value = $this->_queryWeight * $this->_idf;
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/Directory.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/Directory.php
new file mode 100644
index 00000000..48114a76
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/Directory.php
@@ -0,0 +1,118 @@
+<?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 Storage
+ * @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
+ */
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Storage
+ * @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_Storage_Directory
+{
+
+    /**
+     * Closes the store.
+     *
+     * @return void
+     */
+    abstract public function close();
+
+    /**
+     * Returns an array of strings, one for each file in the directory.
+     *
+     * @return array
+     */
+    abstract public function fileList();
+
+    /**
+     * Creates a new, empty file in the directory with the given $filename.
+     *
+     * @param string $filename
+     * @return Zend_Search_Lucene_Storage_File
+     */
+    abstract public function createFile($filename);
+
+
+    /**
+     * Removes an existing $filename in the directory.
+     *
+     * @param string $filename
+     * @return void
+     */
+    abstract public function deleteFile($filename);
+
+
+    /**
+     * Returns true if a file with the given $filename exists.
+     *
+     * @param string $filename
+     * @return boolean
+     */
+    abstract public function fileExists($filename);
+
+
+    /**
+     * Returns the length of a $filename in the directory.
+     *
+     * @param string $filename
+     * @return integer
+     */
+    abstract public function fileLength($filename);
+
+
+    /**
+     * Returns the UNIX timestamp $filename was last modified.
+     *
+     * @param string $filename
+     * @return integer
+     */
+    abstract public function fileModified($filename);
+
+
+    /**
+     * Renames an existing file in the directory.
+     *
+     * @param string $from
+     * @param string $to
+     * @return void
+     */
+    abstract public function renameFile($from, $to);
+
+
+    /**
+     * Sets the modified time of $filename to now.
+     *
+     * @param string $filename
+     * @return void
+     */
+    abstract public function touchFile($filename);
+
+
+    /**
+     * Returns a Zend_Search_Lucene_Storage_File object for a given $filename in the directory.
+     *
+     * @param string $filename
+     * @return Zend_Search_Lucene_Storage_File
+     */
+    abstract public function getFileObject($filename);
+
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/Directory/Filesystem.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/Directory/Filesystem.php
new file mode 100644
index 00000000..73d10659
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/Directory/Filesystem.php
@@ -0,0 +1,269 @@
+<?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 Storage
+ * @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_Storage_Directory */
+require_once 'Zend/Search/Lucene/Storage/Directory.php';
+
+/** Zend_Search_Lucene_Storage_File_Filesystem */
+require_once 'Zend/Search/Lucene/Storage/File/Filesystem.php';
+
+
+/**
+ * FileSystem implementation of Directory abstraction.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage Storage
+ * @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
+ */
+class Zend_Search_Lucene_Storage_Directory_Filesystem extends Zend_Search_Lucene_Storage_Directory
+{
+    /**
+     * Filesystem path to the directory
+     *
+     * @var string
+     */
+    private $_dirPath = null;
+
+    /**
+     * Cache for Zend_Search_Lucene_Storage_File_Filesystem objects
+     * Array: filename => Zend_Search_Lucene_Storage_File object
+     *
+     * @var array
+     * @throws Zend_Search_Lucene_Exception
+     */
+    private $_fileHandlers;
+
+
+    /**
+     * Utility function to recursive directory creation
+     *
+     * @param string $dir
+     * @param integer $mode
+     * @param boolean $recursive
+     * @return boolean
+     */
+
+    static public function mkdirs($dir, $mode = 0777, $recursive = true)
+    {
+        if (is_null($dir) || $dir === '') {
+            return false;
+        }
+        if (is_dir($dir) || $dir === '/') {
+            return true;
+        }
+        if (self::mkdirs(dirname($dir), $mode, $recursive)) {
+            return mkdir($dir, $mode);
+        }
+        return false;
+    }
+
+
+    /**
+     * Object constructor
+     * Checks if $path is a directory or tries to create it.
+     *
+     * @param string $path
+     * @throws Zend_Search_Lucene_Exception
+     */
+    public function __construct($path)
+    {
+        if (!is_dir($path)) {
+            if (file_exists($path)) {
+                throw new Zend_Search_Lucene_Exception('Path exists, but it\'s not a directory');
+            } else {
+                if (!self::mkdirs($path)) {
+                    throw new Zend_Search_Lucene_Exception("Can't create directory '$path'.");
+                }
+            }
+        }
+        $this->_dirPath = $path;
+        $this->_fileHandlers = array();
+    }
+
+
+    /**
+     * Closes the store.
+     *
+     * @return void
+     */
+    public function close()
+    {
+        foreach ($this->_fileHandlers as $fileObject) {
+            $fileObject->close();
+        }
+
+        unset($this->_fileHandlers);
+    }
+
+
+    /**
+     * Returns an array of strings, one for each file in the directory.
+     *
+     * @return array
+     */
+    public function fileList()
+    {
+        $result = array();
+
+        $dirContent = opendir( $this->_dirPath );
+        while ($file = readdir($dirContent)) {
+            if (($file == '..')||($file == '.'))   continue;
+
+            $fullName = $this->_dirPath . '/' . $file;
+
+            if( !is_dir($this->_dirPath . '/' . $file) ) {
+                $result[] = $file;
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Creates a new, empty file in the directory with the given $filename.
+     *
+     * @param string $filename
+     * @return Zend_Search_Lucene_Storage_File
+     */
+    public function createFile($filename)
+    {
+        if (isset($this->_fileHandlers[$filename])) {
+            $this->_fileHandlers[$filename]->close();
+        }
+        unset($this->_fileHandlers[$filename]);
+        $this->_fileHandlers[$filename] = new Zend_Search_Lucene_Storage_File_Filesystem($this->_dirPath . '/' . $filename, 'w+b');
+        return $this->_fileHandlers[$filename];
+    }
+
+
+    /**
+     * Removes an existing $filename in the directory.
+     *
+     * @param string $filename
+     * @return void
+     */
+    public function deleteFile($filename)
+    {
+        if (isset($this->_fileHandlers[$filename])) {
+            $this->_fileHandlers[$filename]->close();
+        }
+        unset($this->_fileHandlers[$filename]);
+        unlink($this->_dirPath .'/'. $filename);
+    }
+
+
+    /**
+     * Returns true if a file with the given $filename exists.
+     *
+     * @param string $filename
+     * @return boolean
+     */
+    public function fileExists($filename)
+    {
+        return file_exists($this->_dirPath .'/'. $filename);
+    }
+
+
+    /**
+     * Returns the length of a $filename in the directory.
+     *
+     * @param string $filename
+     * @return integer
+     */
+    public function fileLength($filename)
+    {
+        if (isset( $this->_fileHandlers[$filename] )) {
+            return $this->_fileHandlers[$filename]->size();
+        }
+        return filesize($this->_dirPath .'/'. $filename);
+    }
+
+
+    /**
+     * Returns the UNIX timestamp $filename was last modified.
+     *
+     * @param string $filename
+     * @return integer
+     */
+    public function fileModified($filename)
+    {
+        return filemtime($this->_dirPath .'/'. $filename);
+    }
+
+
+    /**
+     * Renames an existing file in the directory.
+     *
+     * @param string $from
+     * @param string $to
+     * @return void
+     */
+    public function renameFile($from, $to)
+    {
+        if ($this->_fileHandlers[$from] !== null) {
+            $this->_fileHandlers[$from]->close();
+        }
+        unset($this->_fileHandlers[$from]);
+
+        if ($this->_fileHandlers[$to] !== null) {
+            $this->_fileHandlers[$to]->close();
+        }
+        unset($this->_fileHandlers[$to]);
+
+        if (file_exists($this->_dirPath . '/' . $to)) {
+            unlink($this->_dirPath . '/' . $to);
+        }
+
+        return @rename($this->_dirPath . '/' . $from, $this->_dirPath . '/' . $to);
+    }
+
+
+    /**
+     * Sets the modified time of $filename to now.
+     *
+     * @param string $filename
+     * @return void
+     */
+    public function touchFile($filename)
+    {
+        return touch($this->_dirPath .'/'. $filename);
+    }
+
+
+    /**
+     * Returns a Zend_Search_Lucene_Storage_File object for a given $filename in the directory.
+     *
+     * @param string $filename
+     * @return Zend_Search_Lucene_Storage_File
+     */
+    public function getFileObject($filename)
+    {
+        if (isset( $this->_fileHandlers[$filename] )) {
+            $this->_fileHandlers[$filename]->seek(0);
+            return $this->_fileHandlers[$filename];
+        }
+
+        $this->_fileHandlers[$filename] = new Zend_Search_Lucene_Storage_File_Filesystem($this->_dirPath . '/' . $filename, 'rb');
+        return $this->_fileHandlers[$filename];
+    }
+}
+
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/File.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/File.php
new file mode 100644
index 00000000..f62af33a
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/File.php
@@ -0,0 +1,376 @@
+<?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 Storage
+ * @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
+ */
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Storage
+ * @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_Storage_File
+{
+
+    /**
+     * Class constructor.  Open the file.
+     */
+    abstract public function __construct($filename, $mode='r');
+
+
+    /**
+     * Reads $length number of bytes at the current position in the
+     * file and advances the file pointer.
+     *
+     * @param integer $length
+     * @return string
+     */
+    abstract protected function _fread($length=1);
+
+
+    /**
+     * Sets the file position indicator and advances the file pointer.
+     * The new position, measured in bytes from the beginning of the file,
+     * is obtained by adding offset to the position specified by whence,
+     * whose values are defined as follows:
+     * SEEK_SET - Set position equal to offset bytes.
+     * SEEK_CUR - Set position to current location plus offset.
+     * SEEK_END - Set position to end-of-file plus offset. (To move to
+     * a position before the end-of-file, you need to pass a negative value
+     * in offset.)
+     * Upon success, returns 0; otherwise, returns -1
+     *
+     * @param integer $offset
+     * @param integer $whence
+     * @return integer
+     */
+    abstract public function seek($offset, $whence=SEEK_SET);
+
+    /**
+     * Get file position.
+     *
+     * @return integer
+     */
+    abstract public function tell();
+
+    /**
+     * Writes $length number of bytes (all, if $length===null) to the end
+     * of the file.
+     *
+     * @param string $data
+     * @param integer $length
+     */
+    abstract protected function _fwrite($data, $length=null);
+
+
+    /**
+     * Reads a byte from the current position in the file
+     * and advances the file pointer.
+     *
+     * @return integer
+     */
+    public function readByte()
+    {
+        return ord($this->_fread(1));
+    }
+
+    /**
+     * Writes a byte to the end of the file.
+     *
+     * @param integer $byte
+     */
+    public function writeByte($byte)
+    {
+        return $this->_fwrite(chr($byte), 1);
+    }
+
+    /**
+     * Read num bytes from the current position in the file
+     * and advances the file pointer.
+     *
+     * @param integer $num
+     * @return string
+     */
+    public function readBytes($num)
+    {
+        return $this->_fread($num);
+    }
+
+    /**
+     * Writes num bytes of data (all, if $num===null) to the end
+     * of the file.
+     *
+     * @param string $data
+     * @param integer $num
+     */
+    public function writeBytes($data, $num=null)
+    {
+        $this->_fwrite($data, $num);
+    }
+
+
+    /**
+     * Reads an integer from the current position in the file
+     * and advances the file pointer.
+     *
+     * @return integer
+     */
+    public function readInt()
+    {
+        $str = $this->_fread(4);
+
+        return  ord($str{0}) << 24 |
+                ord($str{1}) << 16 |
+                ord($str{2}) << 8  |
+                ord($str{3});
+    }
+
+
+    /**
+     * Writes an integer to the end of file.
+     *
+     * @param integer $value
+     */
+    public function writeInt($value)
+    {
+        settype($value, 'integer');
+        $this->_fwrite( chr($value>>24 & 0xFF) .
+                        chr($value>>16 & 0xFF) .
+                        chr($value>>8  & 0xFF) .
+                        chr($value     & 0xFF),   4  );
+    }
+
+
+    /**
+     * Returns a long integer from the current position in the file
+     * and advances the file pointer.
+     *
+     * @return integer
+     */
+    public function readLong()
+    {
+        $str = $this->_fread(8);
+
+        /**
+         * PHP uses long as largest integer. fseek() uses long for offset.
+         * long has 4 bytes in a lot of systems. 4 bytes are discarded to prevent
+         * conversion to float.
+         * So, largest index segment file is 2Gb
+         */
+        return  /* ord($str{0}) << 56  | */
+                /* ord($str{1}) << 48  | */
+                /* ord($str{2}) << 40  | */
+                /* ord($str{3}) << 32  | */
+                ord($str{4}) << 24  |
+                ord($str{5}) << 16  |
+                ord($str{6}) << 8   |
+                ord($str{7});
+    }
+
+    /**
+     * Writes long integer to the end of file
+     *
+     * @param integer $value
+     */
+    public function writeLong($value)
+    {
+        /**
+         * PHP uses long as largest integer. fseek() uses long for offset.
+         * long has 4 bytes in a lot of systems. 4 bytes are discarded to prevent
+         * conversion to float.
+         * So, largest index segment file is 2Gb
+         */
+        settype($value, 'integer');
+        $this->_fwrite( "\x00\x00\x00\x00"     .
+                        chr($value>>24 & 0xFF) .
+                        chr($value>>16 & 0xFF) .
+                        chr($value>>8  & 0xFF) .
+                        chr($value     & 0xFF),   8  );
+    }
+
+
+
+    /**
+     * Returns a variable-length integer from the current
+     * position in the file and advances the file pointer.
+     *
+     * @return integer
+     */
+    public function readVInt()
+    {
+        $nextByte = ord($this->_fread(1));
+        $val = $nextByte & 0x7F;
+
+        for ($shift=7; ($nextByte & 0x80) != 0; $shift += 7) {
+            $nextByte = ord($this->_fread(1));
+            $val |= ($nextByte & 0x7F) << $shift;
+        }
+        return $val;
+    }
+
+    /**
+     * Writes a variable-length integer to the end of file.
+     *
+     * @param integer $value
+     */
+    public function writeVInt($value)
+    {
+        settype($value, 'integer');
+        while ($value > 0x7F) {
+            $this->_fwrite(chr( ($value & 0x7F)|0x80 ));
+            $value >>= 7;
+        }
+        $this->_fwrite(chr($value));
+    }
+
+
+    /**
+     * Reads a string from the current position in the file
+     * and advances the file pointer.
+     *
+     * @return string
+     */
+    public function readString()
+    {
+        $strlen = $this->readVInt();
+        if ($strlen == 0) {
+            return '';
+        } else {
+            /**
+             * This implementation supports only Basic Multilingual Plane
+             * (BMP) characters (from 0x0000 to 0xFFFF) and doesn't support
+             * "supplementary characters" (characters whose code points are
+             * greater than 0xFFFF)
+             * Java 2 represents these characters as a pair of char (16-bit)
+             * values, the first from the high-surrogates range (0xD800-0xDBFF),
+             * the second from the low-surrogates range (0xDC00-0xDFFF). Then
+             * they are encoded as usual UTF-8 characters in six bytes.
+             * Standard UTF-8 representation uses four bytes for supplementary
+             * characters.
+             */
+
+            $str_val = $this->_fread($strlen);
+
+            for ($count = 0; $count < $strlen; $count++ ) {
+                if (( ord($str_val{$count}) & 0xC0 ) == 0xC0) {
+                    $addBytes = 1;
+                    if (ord($str_val{$count}) & 0x20 ) {
+                        $addBytes++;
+
+                        // Never used. Java2 doesn't encode strings in four bytes
+                        if (ord($str_val{$count}) & 0x10 ) {
+                            $addBytes++;
+                        }
+                    }
+                    $str_val .= $this->_fread($addBytes);
+                    $strlen += $addBytes;
+
+                    // Check for null character. Java2 encodes null character
+                    // in two bytes.
+                    if (ord($str_val{$count})   == 0xC0 &&
+                        ord($str_val{$count+1}) == 0x80   ) {
+                        $str_val{$count} = 0;
+                        $str_val = substr($str_val,0,$count+1)
+                                 . substr($str_val,$count+2);
+                    }
+                    $count += $addBytes;
+                }
+            }
+
+            return $str_val;
+        }
+    }
+
+    /**
+     * Writes a string to the end of file.
+     *
+     * @param string $str
+     * @throws Zend_Search_Lucene_Exception
+     */
+    public function writeString($str)
+    {
+        /**
+         * This implementation supports only Basic Multilingual Plane
+         * (BMP) characters (from 0x0000 to 0xFFFF) and doesn't support
+         * "supplementary characters" (characters whose code points are
+         * greater than 0xFFFF)
+         * Java 2 represents these characters as a pair of char (16-bit)
+         * values, the first from the high-surrogates range (0xD800-0xDBFF),
+         * the second from the low-surrogates range (0xDC00-0xDFFF). Then
+         * they are encoded as usual UTF-8 characters in six bytes.
+         * Standard UTF-8 representation uses four bytes for supplementary
+         * characters.
+         */
+
+        // convert input to a string before iterating string characters
+        settype($str, 'string');
+
+        $chars = $strlen = strlen($str);
+        $containNullChars = false;
+
+        for ($count = 0; $count < $strlen; $count++ ) {
+            /**
+             * String is already in Java 2 representation.
+             * We should only calculate actual string length and replace
+             * \x00 by \xC0\x80
+             */
+            if ((ord($str{$count}) & 0xC0) == 0xC0) {
+                $addBytes = 1;
+                if (ord($str{$count}) & 0x20 ) {
+                    $addBytes++;
+
+                    // Never used. Java2 doesn't encode strings in four bytes
+                    // and we dont't support non-BMP characters
+                    if (ord($str{$count}) & 0x10 ) {
+                        $addBytes++;
+                    }
+                }
+                $chars -= $addBytes;
+
+                if (ord($str{$count}) == 0 ) {
+                    $containNullChars = true;
+                }
+                $count += $addBytes;
+            }
+        }
+
+        if ($chars < 0) {
+            throw new Zend_Search_Lucene_Exception('Invalid UTF-8 string');
+        }
+
+        $this->writeVInt($chars);
+        if ($containNullChars) {
+            $this->_fwrite(str_replace($str, "\x00", "\xC0\x80"));
+        } else {
+            $this->_fwrite($str);
+        }
+    }
+
+
+    /**
+     * Reads binary data from the current position in the file
+     * and advances the file pointer.
+     *
+     * @return string
+     */
+    public function readBinary()
+    {
+        return $this->_fread($this->readVInt());
+    }
+}
\ No newline at end of file
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/File/Filesystem.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/File/Filesystem.php
new file mode 100644
index 00000000..fc6adcf5
--- /dev/null
+++ b/demos/quickstart/protected/index/Zend/Search/Lucene/Storage/File/Filesystem.php
@@ -0,0 +1,170 @@
+<?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 Storage
+ * @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_Storage_File */
+require_once 'Zend/Search/Lucene/Storage/File.php';
+
+/** Zend_Search_Lucene_Exception */
+require_once 'Zend/Search/Lucene/Exception.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Storage
+ * @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
+ *
+ */
+class Zend_Search_Lucene_Storage_File_Filesystem extends Zend_Search_Lucene_Storage_File
+{
+    /**
+     * Resource of the open file
+     *
+     * @var resource
+     */
+    private $_fileHandle;
+
+
+    /**
+     * Class constructor.  Open the file.
+     *
+     * @param string $filename
+     * @param string $mode
+     */
+    public function __construct($filename, $mode='rb')
+    {
+        global $php_errormsg;
+
+        $trackErrors = ini_get( "track_errors");
+        ini_set('track_errors', '1');
+
+        $this->_fileHandle = @fopen($filename, $mode);
+
+        if ($this->_fileHandle===false) {
+            ini_set('track_errors', $trackErrors);
+            throw new Zend_Search_Lucene_Exception($php_errormsg);
+        }
+
+        ini_set('track_errors', $trackErrors);
+    }
+
+
+    /**
+     * Sets the file position indicator and advances the file pointer.
+     * The new position, measured in bytes from the beginning of the file,
+     * is obtained by adding offset to the position specified by whence,
+     * whose values are defined as follows:
+     * SEEK_SET - Set position equal to offset bytes.
+     * SEEK_CUR - Set position to current location plus offset.
+     * SEEK_END - Set position to end-of-file plus offset. (To move to
+     * a position before the end-of-file, you need to pass a negative value
+     * in offset.)
+     * Upon success, returns 0; otherwise, returns -1
+     *
+     * @param integer $offset
+     * @param integer $whence
+     * @return integer
+     */
+    public function seek($offset, $whence=SEEK_SET)
+    {
+        return fseek($this->_fileHandle, $offset, $whence);
+    }
+
+
+    /**
+     * Get file position.
+     *
+     * @return integer
+     */
+    public function tell()
+    {
+        return ftell($this->_fileHandle);
+    }
+
+
+    /**
+     * Close File object
+     */
+    public function close()
+    {
+        if ($this->_fileHandle !== null ) {
+            @fclose($this->_fileHandle);
+            $this->_fileHandle = null;
+        }
+    }
+
+    /**
+     * Get the size of the already opened file
+     *
+     * @return integer
+     */
+    public function size()
+    {
+        $position = ftell($this->_fileHandle);
+        fseek($this->_fileHandle, 0, SEEK_END);
+        $size = ftell($this->_fileHandle);
+        fseek($this->_fileHandle,$position);
+
+        return $size;
+    }
+
+    /**
+     * Read a $length bytes from the file and advance the file pointer.
+     *
+     * @param integer $length
+     * @return string
+     */
+    protected function _fread($length=1)
+    {
+        if ($length == 0) {
+            return '';
+        }
+
+        if ($length < 1024) {
+            return fread($this->_fileHandle, $length);
+        }
+
+        $data = '';
+        while ( $length > 0 && ($nextBlock = fread($this->_fileHandle, $length)) != false ) {
+            $data .= $nextBlock;
+            $length -= strlen($nextBlock);
+        }
+        return $data;
+    }
+
+
+    /**
+     * Writes $length number of bytes (all, if $length===null) to the end
+     * of the file.
+     *
+     * @param string $data
+     * @param integer $length
+     */
+    protected function _fwrite($data, $length=null)
+    {
+        if ($length === null ) {
+            fwrite($this->_fileHandle, $data);
+        } else {
+            fwrite($this->_fileHandle, $data, $length);
+        }
+    }
+}
+