80 lines
2.7 KiB
PHP
80 lines
2.7 KiB
PHP
<?php
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/**
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* Description2.php -- Adds meaningful description <meta> tag to MW pages and into the parser output
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* Copyright 2010 Daniel Friesen
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*
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* @file
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* @ingroup Extensions
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* @author Daniel Friesen (http://mediawiki.org/wiki/User:Dantman) <mediawiki@danielfriesen.name>
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* @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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if ( !defined( 'MEDIAWIKI' ) ) die( "This is an extension to the MediaWiki package and cannot be run standalone." );
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$wgExtensionCredits['other'][] = array(
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'path' => __FILE__,
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'name' => 'Description2',
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'version' => '0.1.1',
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'author' => 'Daniel Friesen',
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'url' => 'http://www.mediawiki.org/wiki/Extension:Description2',
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'descriptionmsg' => 'description2-desc',
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);
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$dir = dirname( __FILE__ );
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$wgExtensionMessagesFiles['Description2'] = $dir . '/Description2.i18n.php';
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$wgHooks['ParserAfterTidy'][] = 'egDescription2ParserAfterTidy';
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function egDescription2ParserAfterTidy( &$parser, &$text ) {
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global $wgContLang;
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$desc = '';
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$myText = preg_replace('%<table\b[^>]*+>(?:(?R)|[^<]*+(?:(?!</?table\b)<[^<]*+)*+)*+</table>%i', '', $text);
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$paragraphs = array();
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if ( preg_match_all('#<p>.*?</p>#is', $myText, $paragraphs) ) {
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foreach ( $paragraphs[0] as $paragraph ) {
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$paragraph = trim(strip_tags($paragraph));
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if ( !$paragraph )
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continue;
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$desc = $paragraph;
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break;
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}
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}
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if ( $desc ) {
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$pOut = $parser->getOutput();
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$pOut->setProperty("description", $desc);
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$pOut->addOutputHook("setdescription");
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}
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return true;
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}
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$wgParserOutputHooks['setdescription'] = 'egDescription2ParserOutputSetDescription';
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function egDescription2ParserOutputSetDescription( $out, $parserOutput, $data ) {
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// Export the description from the main parser output into the OutputPage
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$out->mDescription = $parserOutput->getProperty("description");
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}
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$wgHooks['BeforePageDisplay'][] = 'egDescription2PageHook';
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function egDescription2PageHook( &$out, &$sk ) {
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if ( isset($out->mDescription) && $out->mDescription )
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$out->addMeta("description", $out->mDescription);
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return true;
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}
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