MDL-12234, fixing unicode issues with global search
[moodle.git] / search / Zend / Search / Lucene / Analysis / TokenFilter / LowerCase.php
CommitLineData
682d4032 1<?php
2/**
3 * Zend Framework
4 *
5 * LICENSE
6 *
7 * This source file is subject to the new BSD license that is bundled
8 * with this package in the file LICENSE.txt.
9 * It is also available through the world-wide-web at this URL:
10 * http://framework.zend.com/license/new-bsd
11 * If you did not receive a copy of the license and are unable to
12 * obtain it through the world-wide-web, please send an email
13 * to license@zend.com so we can send you a copy immediately.
14 *
15 * @category Zend
16 * @package Zend_Search_Lucene
17 * @subpackage Analysis
8cfbeb81 18 * @copyright Copyright (c) 2005-2007 Zend Technologies USA Inc. (http://www.zend.com)
682d4032 19 * @license http://framework.zend.com/license/new-bsd New BSD License
20 */
21
22
23/** Zend_Search_Lucene_Analysis_TokenFilter */
8cfbeb81 24require_once $CFG->dirroot.'/search/Zend/Search/Lucene/Analysis/TokenFilter.php';
682d4032 25
26
27/**
28 * Lower case Token filter.
29 *
30 * @category Zend
31 * @package Zend_Search_Lucene
32 * @subpackage Analysis
8cfbeb81 33 * @copyright Copyright (c) 2005-2007 Zend Technologies USA Inc. (http://www.zend.com)
682d4032 34 * @license http://framework.zend.com/license/new-bsd New BSD License
35 */
36
37class Zend_Search_Lucene_Analysis_TokenFilter_LowerCase extends Zend_Search_Lucene_Analysis_TokenFilter
38{
39 /**
40 * Normalize Token or remove it (if null is returned)
41 *
42 * @param Zend_Search_Lucene_Analysis_Token $srcToken
43 * @return Zend_Search_Lucene_Analysis_Token
44 */
45 public function normalize(Zend_Search_Lucene_Analysis_Token $srcToken)
46 {
8cfbeb81 47 $newToken = new Zend_Search_Lucene_Analysis_Token(
48 strtolower( $srcToken->getTermText() ),
682d4032 49 $srcToken->getStartOffset(),
8cfbeb81 50 $srcToken->getEndOffset());
682d4032 51
52 $newToken->setPositionIncrement($srcToken->getPositionIncrement());
53
54 return $newToken;
55 }
56}
57