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 /**
  26  * @ingroup API
  27  */
  28 class ApiParse extends ApiBase {
  29         private $section, $text, $pstText = null;
  30
  31         public function __construct( $main, $action ) {
  32                 parent::__construct( $main, $action );
  33         }
  34
  35         public function execute() {
  36                 // The data is hot but user-dependent, like page views, so we set vary cookies
  37                 $this->getMain()->setCacheMode( 'anon-public-user-private' );
  38
  39                 // Get parameters
  40                 $params = $this->extractRequestParams();
  41                 $text = $params['text'];
  42                 $title = $params['title'];
  43                 $page = $params['page'];
  44                 $pageid = $params['pageid'];
  45                 $oldid = $params['oldid'];
  46
  47                 if ( !is_null( $page ) && ( !is_null( $text ) || $title != 'API' ) ) {
  48                         $this->dieUsage( 'The page parameter cannot be used together with the text and title parameters', 'params' );
  49                 }
  50                 $prop = array_flip( $params['prop'] );
  51
  52                 if ( isset( $params['section'] ) ) {
  53                         $this->section = $params['section'];
  54                 } else {
  55                         $this->section = false;
  56                 }
  57
  58                 // The parser needs $wgTitle to be set, apparently the
  59                 // $title parameter in Parser::parse isn't enough *sigh*
  60                 // TODO: Does this still need $wgTitle?
  61                 global $wgParser, $wgTitle, $wgLang;
  62
  63                 // Currently unnecessary, code to act as a safeguard against any change in current behaviour of uselang breaks
  64                 $oldLang = null;
  65                 if ( isset( $params['uselang'] ) && $params['uselang'] != $wgLang->getCode() ) {
  66                         $oldLang = $wgLang; // Backup wgLang
  67                         $wgLang = Language::factory( $params['uselang'] );
  68                 }
  69
  70                 $popts = new ParserOptions();
  71                 $popts->setTidy( true );
  72                 $popts->enableLimitReport( !$params['disablepp'] );
  73
  74                 $redirValues = null;
  75
  76                 // Return result
  77                 $result = $this->getResult();
  78
  79                 if ( !is_null( $oldid ) || !is_null( $pageid ) || !is_null( $page ) ) {
  80                         if ( !is_null( $oldid ) ) {
  81                                 // Don't use the parser cache
  82                                 $rev = Revision::newFromID( $oldid );
  83                                 if ( !$rev ) {
  84                                         $this->dieUsage( "There is no revision ID $oldid", 'missingrev' );
  85                                 }
  86                                 if ( !$rev->userCan( Revision::DELETED_TEXT ) ) {
  87                                         $this->dieUsage( "You don't have permission to view deleted revisions", 'permissiondenied' );
  88                                 }
  89
  90                                 $titleObj = $rev->getTitle();
  91
  92                                 $wgTitle = $titleObj;
  93
  94                                 // If for some reason the "oldid" is actually the current revision, it may be cached
  95                                 if ( $titleObj->getLatestRevID() === intval( $oldid ) )  {
  96                                         $articleObj = new Article( $titleObj, 0 );
  97
  98                                         // May get from/save to parser cache
  99                                         $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid,
 100                                                  isset( $prop['wikitext'] ) ) ;
 101                                 } else { // This is an old revision, so get the text differently
 102                                         $this->text = $rev->getText( Revision::FOR_THIS_USER );
 103
 104                                         $wgTitle = $titleObj;
 105
 106                                         if ( $this->section !== false ) {
 107                                                 $this->text = $this->getSectionText( $this->text, 'r' . $rev->getId() );
 108                                         }
 109
 110                                         // Should we save old revision parses to the parser cache?
 111                                         $p_result = $wgParser->parse( $this->text, $titleObj, $popts );
 112                                 }
 113                         } else { // Not $oldid, but $pageid or $page
 114                                 if ( $params['redirects'] ) {
 115                                         $reqParams = array(
 116                                                 'action' => 'query',
 117                                                 'redirects' => '',
 118                                         );
 119                                         if ( !is_null ( $pageid ) ) {
 120                                                 $reqParams['pageids'] = $pageid;
 121                                         } else { // $page
 122                                                 $reqParams['titles'] = $page;
 123                                         }
 124                                         $req = new FauxRequest( $reqParams );
 125                                         $main = new ApiMain( $req );
 126                                         $main->execute();
 127                                         $data = $main->getResultData();
 128                                         $redirValues = isset( $data['query']['redirects'] )
 129                                                 ? $data['query']['redirects']
 130                                                 : array();
 131                                         $to = $page;
 132                                         foreach ( (array)$redirValues as $r ) {
 133                                                 $to = $r['to'];
 134                                         }
 135                                         $titleObj = Title::newFromText( $to );
 136                                 } else {
 137                                         if ( !is_null ( $pageid ) ) {
 138                                                 $reqParams['pageids'] = $pageid;
 139                                                 $titleObj = Title::newFromID( $pageid );
 140                                         } else { // $page
 141                                                 $to = $page;
 142                                                 $titleObj = Title::newFromText( $to );
 143                                         }
 144                                 }
 145                                 if ( !is_null ( $pageid ) ) {
 146                                         if ( !$titleObj ) {
 147                                                 // Still throw nosuchpageid error if pageid was provided
 148                                                 $this->dieUsageMsg( array( 'nosuchpageid', $pageid ) );
 149                                         }
 150                                 } elseif ( !$titleObj || !$titleObj->exists() ) {
 151                                         $this->dieUsage( "The page you specified doesn't exist", 'missingtitle' );
 152                                 }
 153                                 $wgTitle = $titleObj;
 154
 155                                 $articleObj = new Article( $titleObj, 0 );
 156                                 if ( isset( $prop['revid'] ) ) {
 157                                         $oldid = $articleObj->getRevIdFetched();
 158                                 }
 159
 160                                 // Potentially cached
 161                                 $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid,
 162                                          isset( $prop['wikitext'] ) ) ;
 163                         }
 164                 } else { // Not $oldid, $pageid, $page. Hence based on $text
 165
 166                         $this->text = $text;
 167                         $titleObj = Title::newFromText( $title );
 168                         if ( !$titleObj ) {
 169                                 $this->dieUsageMsg( array( 'invalidtitle', $title ) );
 170                         }
 171                         $wgTitle = $titleObj;
 172
 173                         if ( $this->section !== false ) {
 174                                 $this->text = $this->getSectionText( $this->text, $titleObj->getText() );
 175                         }
 176
 177                         if ( $params['pst'] || $params['onlypst'] ) {
 178                                 $this->pstText = $wgParser->preSaveTransform( $this->text, $titleObj, $this->getUser(), $popts );
 179                         }
 180                         if ( $params['onlypst'] ) {
 181                                 // Build a result and bail out
 182                                 $result_array = array();
 183                                 $result_array['text'] = array();
 184                                 $result->setContent( $result_array['text'], $this->pstText );
 185                                 if ( isset( $prop['wikitext'] ) ) {
 186                                         $result_array['wikitext'] = array();
 187                                         $result->setContent( $result_array['wikitext'], $this->text );
 188                                 }
 189                                 $result->addValue( null, $this->getModuleName(), $result_array );
 190                                 return;
 191                         }
 192                         // Not cached (save or load)
 193                         $p_result = $wgParser->parse( $params['pst'] ? $this->pstText : $this->text, $titleObj, $popts );
 194                 }
 195
 196                 $result_array = array();
 197
 198                 $result_array['title'] = $titleObj->getPrefixedText();
 199
 200                 if ( !is_null( $oldid ) ) {
 201                         $result_array['revid'] = intval( $oldid );
 202                 }
 203
 204                 if ( $params['redirects'] && !is_null( $redirValues ) ) {
 205                         $result_array['redirects'] = $redirValues;
 206                 }
 207
 208                 if ( isset( $prop['text'] ) ) {
 209                         $result_array['text'] = array();
 210                         $result->setContent( $result_array['text'], $p_result->getText() );
 211                 }
 212
 213                 if ( !is_null( $params['summary'] ) ) {
 214                         $result_array['parsedsummary'] = array();
 215                         $result->setContent( $result_array['parsedsummary'], Linker::formatComment( $params['summary'], $titleObj ) );
 216                 }
 217
 218                 if ( isset( $prop['langlinks'] ) ) {
 219                         $result_array['langlinks'] = $this->formatLangLinks( $p_result->getLanguageLinks() );
 220                 }
 221                 if ( isset( $prop['languageshtml'] ) ) {
 222                         $languagesHtml = $this->languagesHtml( $p_result->getLanguageLinks() );
 223                         $result_array['languageshtml'] = array();
 224                         $result->setContent( $result_array['languageshtml'], $languagesHtml );
 225                 }
 226                 if ( isset( $prop['categories'] ) ) {
 227                         $result_array['categories'] = $this->formatCategoryLinks( $p_result->getCategories() );
 228                 }
 229                 if ( isset( $prop['categorieshtml'] ) ) {
 230                         $categoriesHtml = $this->categoriesHtml( $p_result->getCategories() );
 231                         $result_array['categorieshtml'] = array();
 232                         $result->setContent( $result_array['categorieshtml'], $categoriesHtml );
 233                 }
 234                 if ( isset( $prop['links'] ) ) {
 235                         $result_array['links'] = $this->formatLinks( $p_result->getLinks() );
 236                 }
 237                 if ( isset( $prop['templates'] ) ) {
 238                         $result_array['templates'] = $this->formatLinks( $p_result->getTemplates() );
 239                 }
 240                 if ( isset( $prop['images'] ) ) {
 241                         $result_array['images'] = array_keys( $p_result->getImages() );
 242                 }
 243                 if ( isset( $prop['externallinks'] ) ) {
 244                         $result_array['externallinks'] = array_keys( $p_result->getExternalLinks() );
 245                 }
 246                 if ( isset( $prop['sections'] ) ) {
 247                         $result_array['sections'] = $p_result->getSections();
 248                 }
 249
 250                 if ( isset( $prop['displaytitle'] ) ) {
 251                         $result_array['displaytitle'] = $p_result->getDisplayTitle() ?
 252                                                         $p_result->getDisplayTitle() :
 253                                                         $titleObj->getPrefixedText();
 254                 }
 255
 256                 if ( isset( $prop['headitems'] ) || isset( $prop['headhtml'] ) ) {
 257                         $context = $this->getContext();
 258                         $context->setTitle( $titleObj );
 259                         $context->getOutput()->addParserOutputNoText( $p_result );
 260
 261                         if ( isset( $prop['headitems'] ) ) {
 262                                 $headItems = $this->formatHeadItems( $p_result->getHeadItems() );
 263
 264                                 $css = $this->formatCss( $context->getOutput()->buildCssLinksArray() );
 265
 266                                 $scripts = array( $context->getOutput()->getHeadScripts() );
 267
 268                                 $result_array['headitems'] = array_merge( $headItems, $css, $scripts );
 269                         }
 270
 271                         if ( isset( $prop['headhtml'] ) ) {
 272                                 $result_array['headhtml'] = array();
 273                                 $result->setContent( $result_array['headhtml'], $context->getOutput()->headElement( $context->getSkin() ) );
 274                         }
 275                 }
 276
 277                 if ( isset( $prop['iwlinks'] ) ) {
 278                         $result_array['iwlinks'] = $this->formatIWLinks( $p_result->getInterwikiLinks() );
 279                 }
 280
 281                 if ( isset( $prop['wikitext'] ) ) {
 282                         $result_array['wikitext'] = array();
 283                         $result->setContent( $result_array['wikitext'], $this->text );
 284                         if ( !is_null( $this->pstText ) ) {
 285                                 $result_array['psttext'] = array();
 286                                 $result->setContent( $result_array['psttext'], $this->pstText );
 287                         }
 288                 }
 289
 290                 $result_mapping = array(
 291                         'redirects' => 'r',
 292                         'langlinks' => 'll',
 293                         'categories' => 'cl',
 294                         'links' => 'pl',
 295                         'templates' => 'tl',
 296                         'images' => 'img',
 297                         'externallinks' => 'el',
 298                         'iwlinks' => 'iw',
 299                         'sections' => 's',
 300                         'headitems' => 'hi',
 301                 );
 302                 $this->setIndexedTagNames( $result_array, $result_mapping );
 303                 $result->addValue( null, $this->getModuleName(), $result_array );
 304
 305                 if ( !is_null( $oldLang ) ) {
 306                         $wgLang = $oldLang; // Reset $wgLang to $oldLang
 307                 }
 308         }
 309
 310         /**
 311          * @param $articleObj Article
 312          * @param $titleObj Title
 313          * @param $popts ParserOptions
 314          * @param $pageId Int
 315          * @param $getWikitext Bool
 316          * @return ParserOutput
 317          */
 318         private function getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageId = null, $getWikitext = false ) {
 319                 if ( $this->section !== false ) {
 320                         global $wgParser;
 321
 322                         $this->text = $this->getSectionText( $articleObj->getRawText(), !is_null( $pageId )
 323                                         ? 'page id ' . $pageId : $titleObj->getText() );
 324
 325                         // Not cached (save or load)
 326                         return $wgParser->parse( $this->text, $titleObj, $popts );
 327                 } else {
 328                         // Try the parser cache first
 329                         // getParserOutput will save to Parser cache if able
 330                         $pout = $articleObj->getParserOutput();
 331                         if ( $getWikitext ) {
 332                                 $rev = Revision::newFromTitle( $titleObj );
 333                                 if ( $rev ) {
 334                                         $this->text = $rev->getText();
 335                                 }
 336                         }
 337                         return $pout;
 338                 }
 339         }
 340
 341         private function getSectionText( $text, $what ) {
 342                 global $wgParser;
 343                 // Not cached (save or load)
 344                 $text = $wgParser->getSection( $text, $this->section, false );
 345                 if ( $text === false ) {
 346                         $this->dieUsage( "There is no section {$this->section} in " . $what, 'nosuchsection' );
 347                 }
 348                 return $text;
 349         }
 350
 351         private function formatLangLinks( $links ) {
 352                 $result = array();
 353                 foreach ( $links as $link ) {
 354                         $entry = array();
 355                         $bits = explode( ':', $link, 2 );
 356                         $title = Title::newFromText( $link );
 357
 358                         $entry['lang'] = $bits[0];
 359                         if ( $title ) {
 360                                 $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
 361                         }
 362                         $this->getResult()->setContent( $entry, $bits[1] );
 363                         $result[] = $entry;
 364                 }
 365                 return $result;
 366         }
 367
 368         private function formatCategoryLinks( $links ) {
 369                 $result = array();
 370                 foreach ( $links as $link => $sortkey ) {
 371                         $entry = array();
 372                         $entry['sortkey'] = $sortkey;
 373                         $this->getResult()->setContent( $entry, $link );
 374                         $result[] = $entry;
 375                 }
 376                 return $result;
 377         }
 378
 379         private function categoriesHtml( $categories ) {
 380                 $context = $this->getContext();
 381                 $context->getOutput()->addCategoryLinks( $categories );
 382                 return $context->getSkin()->getCategories();
 383         }
 384
 385         /**
 386          * @deprecated since 1.18 No modern skin generates language links this way, please use language links
 387          *                        data to generate your own HTML.
 388          * @param $languages array
 389          * @return string
 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(), PROTO_CURRENT );
 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         public 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 }