f9619da3f0
* Add @addtogroup tags to various classes, to try and group conceptually-related classes together. * Add brief descriptions to various Special pages, thanks to Phil Boswell. * Moving some docs to be right above the classes they represent, so that they are picked up.
68 lines
2.2 KiB
PHP
68 lines
2.2 KiB
PHP
<?php
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# Copyright (C) 2004 Brion Vibber <brion@pobox.com>
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# http://www.mediawiki.org/
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# http://www.gnu.org/copyleft/gpl.html
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/**
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* Search engine hook for MySQL 4+
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* @addtogroup Search
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*/
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class SearchMySQL4 extends SearchMySQL {
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var $strictMatching = true;
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/** @todo document */
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function SearchMySQL4( $db ) {
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$this->db = $db;
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}
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/** @todo document */
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function parseQuery( $filteredText, $fulltext ) {
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global $wgContLang;
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$lc = SearchEngine::legalSearchChars();
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$searchon = '';
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$this->searchTerms = array();
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# FIXME: This doesn't handle parenthetical expressions.
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$m = array();
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if( preg_match_all( '/([-+<>~]?)(([' . $lc . ']+)(\*?)|"[^"]*")/',
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$filteredText, $m, PREG_SET_ORDER ) ) {
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foreach( $m as $terms ) {
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if( $searchon !== '' ) $searchon .= ' ';
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if( $this->strictMatching && ($terms[1] == '') ) {
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$terms[1] = '+';
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}
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$searchon .= $terms[1] . $wgContLang->stripForSearch( $terms[2] );
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if( !empty( $terms[3] ) ) {
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$regexp = preg_quote( $terms[3], '/' );
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if( $terms[4] ) $regexp .= "[0-9A-Za-z_]+";
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} else {
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$regexp = preg_quote( str_replace( '"', '', $terms[2] ), '/' );
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}
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$this->searchTerms[] = $regexp;
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}
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wfDebug( "Would search with '$searchon'\n" );
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wfDebug( 'Match with /\b' . implode( '\b|\b', $this->searchTerms ) . "\b/\n" );
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} else {
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wfDebug( "Can't understand search query '{$filteredText}'\n" );
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}
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$searchon = $this->db->strencode( $searchon );
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$field = $this->getIndexField( $fulltext );
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return " MATCH($field) AGAINST('$searchon' IN BOOLEAN MODE) ";
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}
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}
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?>
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