includes/api/ApiParse.php

   1 <?php
   2 /**
   3  * Created on Dec 01, 2007
   4  *
   5  * Copyright © 2007 Yuri Astrakhan <Firstname><Lastname>@gmail.com
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  */
  24
  25 if ( !defined( 'MEDIAWIKI' ) ) {
  26         // Eclipse helper - will be ignored in production
  27         require_once( "ApiBase.php" );
  28 }
  29
  30 /**
  31  * @ingroup API
  32  */
  33 class ApiParse extends ApiBase {
  34         private $section, $text, $pstText = null;
  35
  36         public function __construct( $main, $action ) {
  37                 parent::__construct( $main, $action );
  38         }
  39
  40         public function execute() {
  41                 // The data is hot but user-dependent, like page views, so we set vary cookies
  42                 $this->getMain()->setCacheMode( 'anon-public-user-private' );
  43
  44                 // Get parameters
  45                 $params = $this->extractRequestParams();
  46                 $text = $params['text'];
  47                 $title = $params['title'];
  48                 $page = $params['page'];
  49                 $pageid = $params['pageid'];
  50                 $oldid = $params['oldid'];
  51
  52                 if ( !is_null( $page ) && ( !is_null( $text ) || $title != 'API' ) ) {
  53                         $this->dieUsage( 'The page parameter cannot be used together with the text and title parameters', 'params' );
  54                 }
  55                 $prop = array_flip( $params['prop'] );
  56
  57                 if ( isset( $params['section'] ) ) {
  58                         $this->section = $params['section'];
  59                 } else {
  60                         $this->section = false;
  61                 }
  62
  63                 // The parser needs $wgTitle to be set, apparently the
  64                 // $title parameter in Parser::parse isn't enough *sigh*
  65                 global $wgParser, $wgUser, $wgTitle, $wgLang;
  66
  67                 // Currently unnecessary, code to act as a safeguard against any change in current behaviour of uselang breaks
  68                 $oldLang = null;
  69                 if ( isset( $params['uselang'] ) && $params['uselang'] != $wgLang->getCode() ) {
  70                         $oldLang = $wgLang; // Backup wgLang
  71                         $wgLang = Language::factory( $params['uselang'] );
  72                 }
  73
  74                 $popts = new ParserOptions();
  75                 $popts->setTidy( true );
  76                 $popts->enableLimitReport( !$params['disablepp'] );
  77
  78                 $redirValues = null;
  79
  80                 // Return result
  81                 $result = $this->getResult();
  82
  83                 if ( !is_null( $oldid ) || !is_null( $pageid ) || !is_null( $page ) ) {
  84                         if ( !is_null( $oldid ) ) {
  85                                 // Don't use the parser cache
  86                                 $rev = Revision::newFromID( $oldid );
  87                                 if ( !$rev ) {
  88                                         $this->dieUsage( "There is no revision ID $oldid", 'missingrev' );
  89                                 }
  90                                 if ( !$rev->userCan( Revision::DELETED_TEXT ) ) {
  91                                         $this->dieUsage( "You don't have permission to view deleted revisions", 'permissiondenied' );
  92                                 }
  93
  94                                 $titleObj = $rev->getTitle();
  95
  96                                 $wgTitle = $titleObj;
  97
  98                                 // If for some reason the "oldid" is actually the current revision, it may be cached
  99                                 if ( $titleObj->getLatestRevID() === intval( $oldid ) )  {
 100                                         $articleObj = new Article( $titleObj, 0 );
 101
 102                                         $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid,
 103                                                  isset( $prop['wikitext'] ) ) ;
 104                                 } else { // This is an old revision, so get the text differently
 105                                         $this->text = $rev->getText( Revision::FOR_THIS_USER );
 106
 107                                         $wgTitle = $titleObj;
 108
 109                                         if ( $this->section !== false ) {
 110                                                 $this->text = $this->getSectionText( $this->text, 'r' . $rev->getId() );
 111                                         }
 112
 113                                         // Do we want to save old revision parses to the parser cache?
 114                                         $p_result = $wgParser->parse( $this->text, $titleObj, $popts );
 115                                 }
 116                         } else { // Not $oldid, but $pageid or $page
 117                                 if ( $params['redirects'] ) {
 118                                         $reqParams = array(
 119                                                 'action' => 'query',
 120                                                 'redirects' => '',
 121                                         );
 122                                         if ( !is_null ( $pageid ) ) {
 123                                                 $reqParams['pageids'] = $pageid;
 124                                         } else { // $page
 125                                                 $reqParams['titles'] = $page;
 126                                         }
 127                                         $req = new FauxRequest( $reqParams );
 128                                         $main = new ApiMain( $req );
 129                                         $main->execute();
 130                                         $data = $main->getResultData();
 131                                         $redirValues = isset( $data['query']['redirects'] )
 132                                                 ? $data['query']['redirects']
 133                                                 : array();
 134                                         $to = $page;
 135                                         foreach ( (array)$redirValues as $r ) {
 136                                                 $to = $r['to'];
 137                                         }
 138                                         $titleObj = Title::newFromText( $to );
 139                                 } else {
 140                                         if ( !is_null ( $pageid ) ) {
 141                                                 $reqParams['pageids'] = $pageid;
 142                                                 $titleObj = Title::newFromID( $pageid );
 143                                         } else { // $page
 144                                                 $to = $page;
 145                                                 $titleObj = Title::newFromText( $to );
 146                                         }
 147                                 }
 148                                 if ( !is_null ( $pageid ) ) {
 149                                         if ( !$titleObj ) {
 150                                                 // Still throw nosuchpageid error if pageid was provided
 151                                                 $this->dieUsageMsg( array( 'nosuchpageid', $pageid ) );
 152                                         }
 153                                 } elseif ( !$titleObj || !$titleObj->exists() ) {
 154                                         $this->dieUsage( "The page you specified doesn't exist", 'missingtitle' );
 155                                 }
 156                                 $wgTitle = $titleObj;
 157
 158                                 $articleObj = new Article( $titleObj, 0 );
 159                                 if ( isset( $prop['revid'] ) ) {
 160                                         $oldid = $articleObj->getRevIdFetched();
 161                                 }
 162
 163                                 // Potentially cached
 164                                 $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid,
 165                                          isset( $prop['wikitext'] ) ) ;
 166                         }
 167                 } else { // Not $oldid, $pageid, $page. Hence based on $text
 168
 169                         $this->text = $text;
 170                         $titleObj = Title::newFromText( $title );
 171                         if ( !$titleObj ) {
 172                                 $this->dieUsageMsg( array( 'invalidtitle', $title ) );
 173                         }
 174                         $wgTitle = $titleObj;
 175
 176                         if ( $this->section !== false ) {
 177                                 $this->text = $this->getSectionText( $this->text, $titleObj->getText() );
 178                         }
 179
 180                         if ( $params['pst'] || $params['onlypst'] ) {
 181                                 $this->pstText = $wgParser->preSaveTransform( $this->text, $titleObj, $wgUser, $popts );
 182                         }
 183                         if ( $params['onlypst'] ) {
 184                                 // Build a result and bail out
 185                                 $result_array['text'] = array();
 186                                 $result->setContent( $result_array['text'], $this->pstText );
 187                                 if ( isset( $prop['wikitext'] ) ) {
 188                                         $result_array['wikitext'] = array();
 189                                         $result->setContent( $result_array['wikitext'], $this->text );
 190                                 }
 191                                 $result->addValue( null, $this->getModuleName(), $result_array );
 192                                 return;
 193                         }
 194                         // Not cached (save or load)
 195                         $p_result = $wgParser->parse( $params['pst'] ? $this->pstText : $this->text, $titleObj, $popts );
 196                 }
 197
 198                 $result_array = array();
 199
 200                 $result_array['title'] = $titleObj->getPrefixedText();
 201
 202                 if ( !is_null( $oldid ) ) {
 203                         $result_array['revid'] = intval( $oldid );
 204                 }
 205
 206                 if ( $params['redirects'] && !is_null( $redirValues ) ) {
 207                         $result_array['redirects'] = $redirValues;
 208                 }
 209
 210                 if ( isset( $prop['text'] ) ) {
 211                         $result_array['text'] = array();
 212                         $result->setContent( $result_array['text'], $p_result->getText() );
 213                 }
 214
 215                 if ( !is_null( $params['summary'] ) ) {
 216                         $result_array['parsedsummary'] = array();
 217                         $result->setContent( $result_array['parsedsummary'], $wgUser->getSkin()->formatComment( $params['summary'], $titleObj ) );
 218                 }
 219
 220                 if ( isset( $prop['langlinks'] ) ) {
 221                         $result_array['langlinks'] = $this->formatLangLinks( $p_result->getLanguageLinks() );
 222                 }
 223                 if ( isset( $prop['languageshtml'] ) ) {
 224                         $languagesHtml = $this->languagesHtml( $p_result->getLanguageLinks() );
 225                         $result_array['languageshtml'] = array();
 226                         $result->setContent( $result_array['languageshtml'], $languagesHtml );
 227                 }
 228                 if ( isset( $prop['categories'] ) ) {
 229                         $result_array['categories'] = $this->formatCategoryLinks( $p_result->getCategories() );
 230                 }
 231                 if ( isset( $prop['categorieshtml'] ) ) {
 232                         $categoriesHtml = $this->categoriesHtml( $p_result->getCategories() );
 233                         $result_array['categorieshtml'] = array();
 234                         $result->setContent( $result_array['categorieshtml'], $categoriesHtml );
 235                 }
 236                 if ( isset( $prop['links'] ) ) {
 237                         $result_array['links'] = $this->formatLinks( $p_result->getLinks() );
 238                 }
 239                 if ( isset( $prop['templates'] ) ) {
 240                         $result_array['templates'] = $this->formatLinks( $p_result->getTemplates() );
 241                 }
 242                 if ( isset( $prop['images'] ) ) {
 243                         $result_array['images'] = array_keys( $p_result->getImages() );
 244                 }
 245                 if ( isset( $prop['externallinks'] ) ) {
 246                         $result_array['externallinks'] = array_keys( $p_result->getExternalLinks() );
 247                 }
 248                 if ( isset( $prop['sections'] ) ) {
 249                         $result_array['sections'] = $p_result->getSections();
 250                 }
 251
 252                 if ( isset( $prop['displaytitle'] ) ) {
 253                         $result_array['displaytitle'] = $p_result->getDisplayTitle() ?
 254                                                         $p_result->getDisplayTitle() :
 255                                                         $titleObj->getPrefixedText();
 256                 }
 257
 258                 if ( isset( $prop['headitems'] ) || isset( $prop['headhtml'] ) ) {
 259                         $context = $this->createContext();
 260                         $context->setTitle( $titleObj );
 261                         $context->getOutput()->addParserOutputNoText( $p_result );
 262
 263                         if ( isset( $prop['headitems'] ) ) {
 264                                 $headItems = $this->formatHeadItems( $p_result->getHeadItems() );
 265
 266                                 $css = $this->formatCss( $context->getOutput()->buildCssLinksArray() );
 267
 268                                 $scripts = array( $context->getOutput()->getHeadScripts() );
 269
 270                                 $result_array['headitems'] = array_merge( $headItems, $css, $scripts );
 271                         }
 272
 273                         if ( isset( $prop['headhtml'] ) ) {
 274                                 $result_array['headhtml'] = array();
 275                                 $result->setContent( $result_array['headhtml'], $context->getOutput()->headElement( $context->getSkin() ) );
 276                         }
 277                 }
 278
 279                 if ( isset( $prop['iwlinks'] ) ) {
 280                         $result_array['iwlinks'] = $this->formatIWLinks( $p_result->getInterwikiLinks() );
 281                 }
 282
 283                 if ( isset( $prop['wikitext'] ) ) {
 284                         $result_array['wikitext'] = array();
 285                         $result->setContent( $result_array['wikitext'], $this->text );
 286                         if ( !is_null( $this->pstText ) ) {
 287                                 $result_array['psttext'] = array();
 288                                 $result->setContent( $result_array['psttext'], $this->pstText );
 289                         }
 290                 }
 291
 292                 $result_mapping = array(
 293                         'redirects' => 'r',
 294                         'langlinks' => 'll',
 295                         'categories' => 'cl',
 296                         'links' => 'pl',
 297                         'templates' => 'tl',
 298                         'images' => 'img',
 299                         'externallinks' => 'el',
 300                         'iwlinks' => 'iw',
 301                         'sections' => 's',
 302                         'headitems' => 'hi',
 303                 );
 304                 $this->setIndexedTagNames( $result_array, $result_mapping );
 305                 $result->addValue( null, $this->getModuleName(), $result_array );
 306
 307                 if ( !is_null( $oldLang ) ) {
 308                         $wgLang = $oldLang; // Reset $wgLang to $oldLang
 309                 }
 310         }
 311
 312         /**
 313          * @param $articleObj Article
 314          * @param $titleObj Title
 315          * @param $popts ParserOptions
 316          * @param $pageId Int
 317          * @param $getWikitext Bool
 318          * @return ParserOutput
 319          */
 320         private function getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageId = null, $getWikitext = false ) {
 321                 if ( $this->section !== false ) {
 322                         global $wgParser;
 323
 324                         $this->text = $this->getSectionText( $articleObj->getRawText(), !is_null ( $pageId )
 325                                         ? 'page id ' . $pageId : $titleObj->getText() );
 326
 327                         // Not cached (save or load)
 328                         return $wgParser->parse( $this->text, $titleObj, $popts );
 329                 } else {
 330                         // Try the parser cache first
 331                         // getParserOutput will save to Parser cache if able
 332                         $pout = $articleObj->getParserOutput();
 333                         if ( $getWikitext ) {
 334                                 $rev = Revision::newFromTitle( $titleObj );
 335                                 if ( $rev ) {
 336                                         $this->text = $rev->getText();
 337                                 }
 338                         }
 339                         return $pout;
 340                 }
 341         }
 342
 343         private function getSectionText( $text, $what ) {
 344                 global $wgParser;
 345                 // Not cached (save or load)
 346                 $text = $wgParser->getSection( $text, $this->section, false );
 347                 if ( $text === false ) {
 348                         $this->dieUsage( "There is no section {$this->section} in " . $what, 'nosuchsection' );
 349                 }
 350                 return $text;
 351         }
 352
 353         private function formatLangLinks( $links ) {
 354                 $result = array();
 355                 foreach ( $links as $link ) {
 356                         $entry = array();
 357                         $bits = explode( ':', $link, 2 );
 358                         $title = Title::newFromText( $link );
 359
 360                         $entry['lang'] = $bits[0];
 361                         if ( $title ) {
 362                                 $entry['url'] = wfExpandUrl( $title->getFullURL() );
 363                         }
 364                         $this->getResult()->setContent( $entry, $bits[1] );
 365                         $result[] = $entry;
 366                 }
 367                 return $result;
 368         }
 369
 370         private function formatCategoryLinks( $links ) {
 371                 $result = array();
 372                 foreach ( $links as $link => $sortkey ) {
 373                         $entry = array();
 374                         $entry['sortkey'] = $sortkey;
 375                         $this->getResult()->setContent( $entry, $link );
 376                         $result[] = $entry;
 377                 }
 378                 return $result;
 379         }
 380
 381         private function categoriesHtml( $categories ) {
 382                 $context = $this->createContext();
 383                 $context->getOutput()->addCategoryLinks( $categories );
 384                 return $context->getSkin()->getCategories();
 385         }
 386
 387         /**
 388          * @deprecated since 1.18 No modern skin generates language links this way, please use language links
 389          *                        data to generate your own HTML.
 390          */
 391         private function languagesHtml( $languages ) {
 392                 global $wgContLang, $wgHideInterlanguageLinks;
 393
 394                 if ( $wgHideInterlanguageLinks || count( $languages ) == 0 ) {
 395                         return '';
 396                 }
 397
 398                 $s = htmlspecialchars( wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' ) );
 399
 400                 $langs = array();
 401                 foreach ( $languages as $l ) {
 402                         $nt = Title::newFromText( $l );
 403                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
 404
 405                         $langs[] = Html::element( 'a',
 406                                 array( 'href' => $nt->getFullURL(), 'title' => $nt->getText(), 'class' => "external" ),
 407                                 $text == '' ? $l : $text );
 408                 }
 409
 410                 $s .= implode( htmlspecialchars( wfMsgExt( 'pipe-separator', 'escapenoentities' ) ), $langs );
 411
 412                 if ( $wgContLang->isRTL() ) {
 413                         $s = Html::rawElement( 'span', array( 'dir' => "LTR" ), $s );
 414                 }
 415
 416                 return $s;
 417         }
 418
 419         private function formatLinks( $links ) {
 420                 $result = array();
 421                 foreach ( $links as $ns => $nslinks ) {
 422                         foreach ( $nslinks as $title => $id ) {
 423                                 $entry = array();
 424                                 $entry['ns'] = $ns;
 425                                 $this->getResult()->setContent( $entry, Title::makeTitle( $ns, $title )->getFullText() );
 426                                 if ( $id != 0 ) {
 427                                         $entry['exists'] = '';
 428                                 }
 429                                 $result[] = $entry;
 430                         }
 431                 }
 432                 return $result;
 433         }
 434
 435         private function formatIWLinks( $iw ) {
 436                 $result = array();
 437                 foreach ( $iw as $prefix => $titles ) {
 438                         foreach ( array_keys( $titles ) as $title ) {
 439                                 $entry = array();
 440                                 $entry['prefix'] = $prefix;
 441
 442                                 $title = Title::newFromText( "{$prefix}:{$title}" );
 443                                 if ( $title ) {
 444                                         $entry['url'] = wfExpandUrl( $title->getFullURL() );
 445                                 }
 446
 447                                 $this->getResult()->setContent( $entry, $title->getFullText() );
 448                                 $result[] = $entry;
 449                         }
 450                 }
 451                 return $result;
 452         }
 453
 454         private function formatHeadItems( $headItems ) {
 455                 $result = array();
 456                 foreach ( $headItems as $tag => $content ) {
 457                         $entry = array();
 458                         $entry['tag'] = $tag;
 459                         $this->getResult()->setContent( $entry, $content );
 460                         $result[] = $entry;
 461                 }
 462                 return $result;
 463         }
 464
 465         private function formatCss( $css ) {
 466                 $result = array();
 467                 foreach ( $css as $file => $link ) {
 468                         $entry = array();
 469                         $entry['file'] = $file;
 470                         $this->getResult()->setContent( $entry, $link );
 471                         $result[] = $entry;
 472                 }
 473                 return $result;
 474         }
 475
 476         private function setIndexedTagNames( &$array, $mapping ) {
 477                 foreach ( $mapping as $key => $name ) {
 478                         if ( isset( $array[$key] ) ) {
 479                                 $this->getResult()->setIndexedTagName( $array[$key], $name );
 480                         }
 481                 }
 482         }
 483
 484         public function getAllowedParams() {
 485                 return array(
 486                         'title' => array(
 487                                 ApiBase::PARAM_DFLT => 'API',
 488                         ),
 489                         'text' => null,
 490                         'summary' => null,
 491                         'page' => null,
 492                         'pageid' => array(
 493                                 ApiBase::PARAM_TYPE => 'integer',
 494                         ),
 495                         'redirects' => false,
 496                         'oldid' => array(
 497                                 ApiBase::PARAM_TYPE => 'integer',
 498                         ),
 499                         'prop' => array(
 500                                 ApiBase::PARAM_DFLT => 'text|langlinks|categories|links|templates|images|externallinks|sections|revid|displaytitle',
 501                                 ApiBase::PARAM_ISMULTI => true,
 502                                 ApiBase::PARAM_TYPE => array(
 503                                         'text',
 504                                         'langlinks',
 505                                         'languageshtml',
 506                                         'categories',
 507                                         'categorieshtml',
 508                                         'links',
 509                                         'templates',
 510                                         'images',
 511                                         'externallinks',
 512                                         'sections',
 513                                         'revid',
 514                                         'displaytitle',
 515                                         'headitems',
 516                                         'headhtml',
 517                                         'iwlinks',
 518                                         'wikitext',
 519                                 )
 520                         ),
 521                         'pst' => false,
 522                         'onlypst' => false,
 523                         'uselang' => null,
 524                         'section' => null,
 525                         'disablepp' => false,
 526                 );
 527         }
 528
 529         public function getParamDescription() {
 530                 $p = $this->getModulePrefix();
 531                 return array(
 532                         'text' => 'Wikitext to parse',
 533                         'summary' => 'Summary to parse',
 534                         'redirects' => "If the {$p}page or the {$p}pageid parameter is set to a redirect, resolve it",
 535                         'title' => 'Title of page the text belongs to',
 536                         'page' => "Parse the content of this page. Cannot be used together with {$p}text and {$p}title",
 537                         'pageid' => "Parse the content of this page. Overrides {$p}page",
 538                         'oldid' => "Parse the content of this revision. Overrides {$p}page and {$p}pageid",
 539                         'prop' => array(
 540                                 'Which pieces of information to get',
 541                                 ' text           - Gives the parsed text of the wikitext',
 542                                 ' langlinks      - Gives the language links in the parsed wikitext',
 543                                 ' categories     - Gives the categories in the parsed wikitext',
 544                                 ' categorieshtml - Gives the HTML version of the categories',
 545                                 ' languageshtml  - Gives the HTML version of the language links',
 546                                 ' links          - Gives the internal links in the parsed wikitext',
 547                                 ' templates      - Gives the templates in the parsed wikitext',
 548                                 ' images         - Gives the images in the parsed wikitext',
 549                                 ' externallinks  - Gives the external links in the parsed wikitext',
 550                                 ' sections       - Gives the sections in the parsed wikitext',
 551                                 ' revid          - Adds the revision ID of the parsed page',
 552                                 ' displaytitle   - Adds the title of the parsed wikitext',
 553                                 ' headitems      - Gives items to put in the <head> of the page',
 554                                 ' headhtml       - Gives parsed <head> of the page',
 555                                 ' iwlinks        - Gives interwiki links in the parsed wikitext',
 556                                 ' wikitext       - Gives the original wikitext that was parsed',
 557                         ),
 558                         'pst' => array(
 559                                 'Do a pre-save transform on the input before parsing it',
 560                                 'Ignored if page, pageid or oldid is used'
 561                         ),
 562                         'onlypst' => array(
 563                                 'Do a pre-save transform (PST) on the input, but don\'t parse it',
 564                                 'Returns the same wikitext, after a PST has been applied. Ignored if page, pageid or oldid is used'
 565                         ),
 566                         'uselang' => 'Which language to parse the request in',
 567                         'section' => 'Only retrieve the content of this section number',
 568                         'disablepp' => 'Disable the PP Report from the parser output',
 569                 );
 570         }
 571
 572         public function getDescription() {
 573                 return 'Parses wikitext and returns parser output';
 574         }
 575
 576         public function getPossibleErrors() {
 577                 return array_merge( parent::getPossibleErrors(), array(
 578                         array( 'code' => 'params', 'info' => 'The page parameter cannot be used together with the text and title parameters' ),
 579                         array( 'code' => 'missingrev', 'info' => 'There is no revision ID oldid' ),
 580                         array( 'code' => 'permissiondenied', 'info' => 'You don\'t have permission to view deleted revisions' ),
 581                         array( 'code' => 'missingtitle', 'info' => 'The page you specified doesn\'t exist' ),
 582                         array( 'code' => 'nosuchsection', 'info' => 'There is no section sectionnumber in page' ),
 583                         array( 'nosuchpageid' ),
 584                         array( 'invalidtitle', 'title' ),
 585                 ) );
 586         }
 587
 588         protected function getExamples() {
 589                 return array(
 590                         'api.php?action=parse&text={{Project:Sandbox}}'
 591                 );
 592         }
 593
 594         public function getHelpUrls() {
 595                 return 'http://www.mediawiki.org/wiki/API:Parsing_wikitext#parse';
 596         }
 597
 598         public function getVersion() {
 599                 return __CLASS__ . ': $Id$';
 600         }
 601 }