From: Tim Starling Date: Mon, 16 Jun 2008 20:21:26 +0000 (+0000) Subject: * Reorganised the includes directory, creating subdirectories db, parser and specials X-Git-Tag: 1.31.0-rc.0~46992 X-Git-Url: http://git.cyclocoop.org/%7B%24www_url%7Dadmin/compta/File:Foobar.svg?a=commitdiff_plain;h=c6b902f180;p=lhc%2Fweb%2Fwiklou.git * Reorganised the includes directory, creating subdirectories db, parser and specials * Wrote a tool to check the integrity of the autoloader class list, fixed some issues that came up. * Start the autoloader before LocalSettings.php, so that when an extension writer thinks an inefficient one-file special page extension is the way to go, they don't have to use explicit includes to make the class inheritance work. Should continue to work with $IP set in LocalSettings.php as long as $IP is set before extensions are included. --- diff --git a/includes/AutoLoader.php b/includes/AutoLoader.php index 1e0fd3779c..a823057d14 100644 --- a/includes/AutoLoader.php +++ b/includes/AutoLoader.php @@ -4,18 +4,14 @@ ini_set('unserialize_callback_func', '__autoload' ); -function __autoload($className) { - global $wgAutoloadClasses; - +class AutoLoader { # Locations of core classes # Extension classes are specified with $wgAutoloadClasses static $localClasses = array( # Includes - 'AjaxCachePolicy' => 'includes/AjaxFunctions.php', 'AjaxDispatcher' => 'includes/AjaxDispatcher.php', 'AjaxResponse' => 'includes/AjaxResponse.php', 'AlphabeticPager' => 'includes/Pager.php', - 'AncientPagesPage' => 'includes/SpecialAncientpages.php', 'APCBagOStuff' => 'includes/BagOStuff.php', 'ArrayDiffFormatter' => 'includes/DifferenceEngine.php', 'Article' => 'includes/Article.php', @@ -24,29 +20,16 @@ function __autoload($className) { 'Autopromote' => 'includes/Autopromote.php', 'BagOStuff' => 'includes/BagOStuff.php', 'Block' => 'includes/Block.php', - 'BrokenRedirectsPage' => 'includes/SpecialBrokenRedirects.php', + 'CacheDependency' => 'includes/CacheDependency.php', 'Category' => 'includes/Category.php', 'Categoryfinder' => 'includes/Categoryfinder.php', 'CategoryPage' => 'includes/CategoryPage.php', 'CategoryViewer' => 'includes/CategoryPage.php', 'ChangesList' => 'includes/ChangesList.php', 'ChannelFeed' => 'includes/Feed.php', - 'ChronologyProtector' => 'includes/LBFactory.php', 'ConcatenatedGzipHistoryBlob' => 'includes/HistoryBlob.php', - 'ContributionsPage' => 'includes/SpecialContributions.php', - 'CoreParserFunctions' => 'includes/CoreParserFunctions.php', - 'Database' => 'includes/Database.php', - 'DatabaseMysql' => 'includes/Database.php', - 'DatabaseOracle' => 'includes/DatabaseOracle.php', - 'DatabasePostgres' => 'includes/DatabasePostgres.php', - 'DatabaseSqlite' => 'includes/DatabaseSqlite.php', - 'DatabaseMssql' => 'includes/DatabaseMssql.php', - 'DateFormatter' => 'includes/DateFormatter.php', + 'ConstantDependency' => 'includes/CacheDependency.php', 'DBABagOStuff' => 'includes/BagOStuff.php', - 'DBLockForm' => 'includes/SpecialLockdb.php', - 'DBObject' => 'includes/Database.php', - 'DBUnlockForm' => 'includes/SpecialUnlockdb.php', - 'DeadendPagesPage' => 'includes/SpecialDeadendpages.php', 'DependencyWrapper' => 'includes/CacheDependency.php', '_DiffEngine' => 'includes/DifferenceEngine.php', 'DifferenceEngine' => 'includes/DifferenceEngine.php', @@ -57,9 +40,7 @@ function __autoload($className) { '_DiffOp_Copy' => 'includes/DifferenceEngine.php', '_DiffOp_Delete' => 'includes/DifferenceEngine.php', '_DiffOp' => 'includes/DifferenceEngine.php', - 'DisambiguationsPage' => 'includes/SpecialDisambiguations.php', 'DjVuImage' => 'includes/DjVuImage.php', - 'DoubleRedirectsPage' => 'includes/SpecialDoubleRedirects.php', 'DoubleReplacer' => 'includes/StringUtils.php', 'Dump7ZipOutput' => 'includes/Export.php', 'DumpBZip2Output' => 'includes/Export.php', @@ -74,33 +55,29 @@ function __autoload($className) { 'DumpPipeOutput' => 'includes/Export.php', 'eAccelBagOStuff' => 'includes/BagOStuff.php', 'EditPage' => 'includes/EditPage.php', - 'EmailConfirmation' => 'includes/SpecialConfirmemail.php', - 'EmailInvalidation' => 'includes/SpecialConfirmemail.php', 'EmaillingJob' => 'includes/EmaillingJob.php', - 'EmaillingJob' => 'includes/JobQueue.php', 'EmailNotification' => 'includes/UserMailer.php', - 'EmailUserForm' => 'includes/SpecialEmailuser.php', 'EnhancedChangesList' => 'includes/ChangesList.php', 'EnotifNotifyJob' => 'includes/EnotifNotifyJob.php', + 'ErrorPageError' => 'includes/Exception.php', 'Exif' => 'includes/Exif.php', 'ExternalEdit' => 'includes/ExternalEdit.php', 'ExternalStoreDB' => 'includes/ExternalStoreDB.php', 'ExternalStoreHttp' => 'includes/ExternalStoreHttp.php', 'ExternalStore' => 'includes/ExternalStore.php', - 'FakeMemCachedClient' => 'includes/ObjectCache.php', + 'FatalError' => 'includes/Exception.php', 'FakeTitle' => 'includes/FakeTitle.php', 'FauxRequest' => 'includes/WebRequest.php', 'FeedItem' => 'includes/Feed.php', - 'FewestrevisionsPage' => 'includes/SpecialFewestrevisions.php', 'FileDeleteForm' => 'includes/FileDeleteForm.php', 'FileDependency' => 'includes/CacheDependency.php', - 'FileDuplicateSearch' => 'includes/SpecialFileDuplicateSearch.php', 'FileRevertForm' => 'includes/FileRevertForm.php', 'FileStore' => 'includes/FileStore.php', 'FormatExif' => 'includes/Exif.php', 'FormOptions' => 'includes/FormOptions.php', 'FSException' => 'includes/FileStore.php', 'FSTransaction' => 'includes/FileStore.php', + 'GlobalDependency' => 'includes/CacheDependency.php', 'HashBagOStuff' => 'includes/BagOStuff.php', 'HashtableReplacer' => 'includes/StringUtils.php', 'HistoryBlobCurStub' => 'includes/HistoryBlob.php', @@ -115,17 +92,10 @@ function __autoload($className) { 'ImageHistoryList' => 'includes/ImagePage.php', 'ImagePage' => 'includes/ImagePage.php', 'ImageQueryPage' => 'includes/ImageQueryPage.php', - 'ImportStreamSource' => 'includes/SpecialImport.php', - 'ImportStringSource' => 'includes/SpecialImport.php', 'IncludableSpecialPage' => 'includes/SpecialPage.php', 'IndexPager' => 'includes/Pager.php', - 'IPBlockForm' => 'includes/SpecialBlockip.php', 'IP' => 'includes/IP.php', - 'IPUnblockForm' => 'includes/SpecialIpblocklist.php', 'Job' => 'includes/JobQueue.php', - 'LBFactory' => 'includes/LBFactory.php', - 'LBFactory_Multi' => 'includes/LBFactory_Multi.php', - 'LBFactory_Simple' => 'includes/LBFactory.php', 'License' => 'includes/Licenses.php', 'Licenses' => 'includes/Licenses.php', 'LinkBatch' => 'includes/LinkBatch.php', @@ -133,15 +103,11 @@ function __autoload($className) { 'Linker' => 'includes/Linker.php', 'LinkFilter' => 'includes/LinkFilter.php', 'LinksUpdate' => 'includes/LinksUpdate.php', - 'ListredirectsPage' => 'includes/SpecialListredirects.php', - 'LoadBalancer' => 'includes/LoadBalancer.php', - 'LoginForm' => 'includes/SpecialUserlogin.php', 'LogPage' => 'includes/LogPage.php', + 'LogPager' => 'includes/LogEventsList.php', 'LogEventsList' => 'includes/LogEventsList.php', 'LogReader' => 'includes/LogEventsList.php', 'LogViewer' => 'includes/LogEventsList.php', - 'LonelyPagesPage' => 'includes/SpecialLonelypages.php', - 'LongPagesPage' => 'includes/SpecialLongpages.php', 'MacBinary' => 'includes/MacBinary.php', 'MagicWordArray' => 'includes/MagicWord.php', 'MagicWord' => 'includes/MagicWord.php', @@ -156,55 +122,29 @@ function __autoload($className) { 'memcached' => 'includes/memcached-client.php', 'MessageCache' => 'includes/MessageCache.php', 'MimeMagic' => 'includes/MimeMagic.php', - 'MIMEsearchPage' => 'includes/SpecialMIMEsearch.php', - 'MostcategoriesPage' => 'includes/SpecialMostcategories.php', - 'MostimagesPage' => 'includes/SpecialMostimages.php', - 'MostlinkedCategoriesPage' => 'includes/SpecialMostlinkedcategories.php', - 'MostlinkedPage' => 'includes/SpecialMostlinked.php', - 'MostrevisionsPage' => 'includes/SpecialMostrevisions.php', - 'MovePageForm' => 'includes/SpecialMovepage.php', 'MWException' => 'includes/Exception.php', 'MWNamespace' => 'includes/Namespace.php', 'MySQLSearchResultSet' => 'includes/SearchMySQL.php', - 'MySQLMasterPos' => 'includes/Database.php', 'Namespace' => 'includes/NamespaceCompat.php', // Compat - 'NewbieContributionsPage' => 'includes/SpecialNewbieContributions.php', - 'NewPagesPage' => 'includes/SpecialNewpages.php', 'OldChangesList' => 'includes/ChangesList.php', + 'OracleSearchResultSet' => 'includes/SearchOracle.php', 'OutputPage' => 'includes/OutputPage.php', - 'PageArchive' => 'includes/SpecialUndelete.php', 'PageHistory' => 'includes/PageHistory.php', + 'PageHistoryPager' => 'includes/PageHistory.php', 'PageQueryPage' => 'includes/PageQueryPage.php', - 'ParserCache' => 'includes/ParserCache.php', - 'Parser_DiffTest' => 'includes/Parser_DiffTest.php', - 'Parser' => 'includes/Parser.php', - 'Parser_OldPP' => 'includes/Parser_OldPP.php', - 'ParserOptions' => 'includes/ParserOptions.php', - 'ParserOutput' => 'includes/ParserOutput.php', - 'PasswordResetForm' => 'includes/SpecialResetpass.php', + 'Pager' => 'includes/Pager.php', + 'PasswordError' => 'includes/User.php', 'PatrolLog' => 'includes/PatrolLog.php', - 'PopularPagesPage' => 'includes/SpecialPopularpages.php', - 'PPDStackElement' => 'includes/Preprocessor_DOM.php', - 'PPDStack' => 'includes/Preprocessor_DOM.php', - 'PPFrame_DOM' => 'includes/Preprocessor_DOM.php', - 'PPFrame' => 'includes/Preprocessor.php', - 'PPNode_DOM' => 'includes/Preprocessor_DOM.php', - 'PPNode' => 'includes/Preprocessor.php', - 'PPTemplateFrame_DOM' => 'includes/Preprocessor_DOM.php', - 'PreferencesForm' => 'includes/SpecialPreferences.php', + 'PostgresSearchResult' => 'includes/SearchPostgres.php', + 'PostgresSearchResultSet' => 'includes/SearchPostgres.php', 'PrefixSearch' => 'includes/PrefixSearch.php', - 'Preprocessor_DOM' => 'includes/Preprocessor_DOM.php', - 'Preprocessor_Hash' => 'includes/Preprocessor_Hash.php', - 'Preprocessor' => 'includes/Preprocessor.php', 'Profiler' => 'includes/Profiler.php', 'ProfilerSimple' => 'includes/ProfilerSimple.php', 'ProfilerSimpleText' => 'includes/ProfilerSimpleText.php', 'ProfilerSimpleUDP' => 'includes/ProfilerSimpleUDP.php', 'ProtectionForm' => 'includes/ProtectionForm.php', - 'ProxyTools' => 'includes/ProxyTools.php', 'QueryPage' => 'includes/QueryPage.php', 'QuickTemplate' => 'includes/SkinTemplate.php', - 'RandomPage' => 'includes/SpecialRandompage.php', 'RawPage' => 'includes/RawPage.php', 'RCCacheEntry' => 'includes/ChangesList.php', 'RecentChange' => 'includes/RecentChange.php', @@ -212,38 +152,32 @@ function __autoload($className) { 'RegexlikeReplacer' => 'includes/StringUtils.php', 'ReplacementArray' => 'includes/StringUtils.php', 'Replacer' => 'includes/StringUtils.php', - 'ResultWrapper' => 'includes/Database.php', 'ReverseChronologicalPager' => 'includes/Pager.php', - 'RevisionDeleteForm' => 'includes/SpecialRevisiondelete.php', - 'RevisionDeleter' => 'includes/SpecialRevisiondelete.php', 'Revision' => 'includes/Revision.php', 'RSSFeed' => 'includes/Feed.php', 'Sanitizer' => 'includes/Sanitizer.php', 'SearchEngineDummy' => 'includes/SearchEngine.php', 'SearchEngine' => 'includes/SearchEngine.php', + 'SearchHighlighter' => 'includes/SearchEngine.php', 'SearchMySQL4' => 'includes/SearchMySQL4.php', 'SearchMySQL' => 'includes/SearchMySQL.php', 'SearchOracle' => 'includes/SearchOracle.php', 'SearchPostgres' => 'includes/SearchPostgres.php', 'SearchResult' => 'includes/SearchEngine.php', 'SearchResultSet' => 'includes/SearchEngine.php', + 'SearchResultTooMany' => 'includes/SearchEngine.php', 'SearchUpdate' => 'includes/SearchUpdate.php', 'SearchUpdateMyISAM' => 'includes/SearchUpdate.php', - 'ShortPagesPage' => 'includes/SpecialShortpages.php', 'SiteConfiguration' => 'includes/SiteConfiguration.php', 'SiteStats' => 'includes/SiteStats.php', 'SiteStatsUpdate' => 'includes/SiteStats.php', 'Skin' => 'includes/Skin.php', 'SkinTemplate' => 'includes/SkinTemplate.php', - 'SpecialAllpages' => 'includes/SpecialAllpages.php', - 'SpecialBookSources' => 'includes/SpecialBooksources.php', - 'SpecialListGroupRights' => 'includes/SpecialListgrouprights.php', - 'SpecialMostlinkedtemplates' => 'includes/SpecialMostlinkedtemplates.php', + 'SpecialMycontributions' => 'includes/SpecialPage.php', + 'SpecialMypage' => 'includes/SpecialPage.php', + 'SpecialMytalk' => 'includes/SpecialPage.php', 'SpecialPage' => 'includes/SpecialPage.php', - 'SpecialPrefixindex' => 'includes/SpecialPrefixindex.php', - 'SpecialRandomredirect' => 'includes/SpecialRandomredirect.php', - 'SpecialSearch' => 'includes/SpecialSearch.php', - 'SpecialVersion' => 'includes/SpecialVersion.php', + 'SpecialRedirectToSpecial' => 'includes/SpecialPage.php', 'SqlBagOStuff' => 'includes/BagOStuff.php', 'SquidUpdate' => 'includes/SquidUpdate.php', 'Status' => 'includes/Status.php', @@ -256,38 +190,21 @@ function __autoload($className) { 'TitleListDependency' => 'includes/CacheDependency.php', 'TransformParameterError' => 'includes/MediaTransformOutput.php', 'TurckBagOStuff' => 'includes/BagOStuff.php', - 'UncategorizedCategoriesPage' => 'includes/SpecialUncategorizedcategories.php', - 'UncategorizedPagesPage' => 'includes/SpecialUncategorizedpages.php', - 'UncategorizedTemplatesPage' => 'includes/SpecialUncategorizedtemplates.php', - 'UndeleteForm' => 'includes/SpecialUndelete.php', 'UnifiedDiffFormatter' => 'includes/DifferenceEngine.php', 'UnlistedSpecialPage' => 'includes/SpecialPage.php', - 'UnusedCategoriesPage' => 'includes/SpecialUnusedcategories.php', - 'UnusedimagesPage' => 'includes/SpecialUnusedimages.php', - 'UnusedtemplatesPage' => 'includes/SpecialUnusedtemplates.php', - 'UnwatchedpagesPage' => 'includes/SpecialUnwatchedpages.php', - 'UploadForm' => 'includes/SpecialUpload.php', - 'UploadFormMogile' => 'includes/SpecialUploadMogile.php', 'User' => 'includes/User.php', 'UserArray' => 'includes/UserArray.php', 'UserArrayFromResult' => 'includes/UserArray.php', 'UserMailer' => 'includes/UserMailer.php', - 'UserrightsPage' => 'includes/SpecialUserrights.php', 'UserRightsProxy' => 'includes/UserRightsProxy.php', - 'WantedCategoriesPage' => 'includes/SpecialWantedcategories.php', - 'WantedPagesPage' => 'includes/SpecialWantedpages.php', 'WatchedItem' => 'includes/WatchedItem.php', 'WatchlistEditor' => 'includes/WatchlistEditor.php', 'WebRequest' => 'includes/WebRequest.php', 'WebResponse' => 'includes/WebResponse.php', - 'WhatLinksHerePage' => 'includes/SpecialWhatlinkshere.php', 'WikiError' => 'includes/WikiError.php', 'WikiErrorMsg' => 'includes/WikiError.php', 'WikiExporter' => 'includes/Export.php', - 'WikiImporter' => 'includes/SpecialImport.php', - 'WikiRevision' => 'includes/SpecialImport.php', 'WikiXmlError' => 'includes/WikiError.php', - 'WithoutInterwikiPage' => 'includes/SpecialWithoutinterwiki.php', 'WordLevelDiff' => 'includes/DifferenceEngine.php', 'XCacheBagOStuff' => 'includes/BagOStuff.php', 'XmlDumpWriter' => 'includes/Export.php', @@ -296,46 +213,11 @@ function __autoload($className) { 'XmlTypeCheck' => 'includes/XmlTypeCheck.php', 'ZhClient' => 'includes/ZhClient.php', - # filerepo - 'ArchivedFile' => 'includes/filerepo/ArchivedFile.php', - 'File' => 'includes/filerepo/File.php', - 'FileRepo' => 'includes/filerepo/FileRepo.php', - 'FileRepoStatus' => 'includes/filerepo/FileRepoStatus.php', - 'ForeignAPIFile' => 'includes/filerepo/ForeignAPIFile.php', - 'ForeignAPIRepo' => 'includes/filerepo/ForeignAPIRepo.php', - 'ForeignDBFile' => 'includes/filerepo/ForeignDBFile.php', - 'ForeignDBRepo' => 'includes/filerepo/ForeignDBRepo.php', - 'ForeignDBViaLBRepo' => 'includes/filerepo/ForeignDBViaLBRepo.php', - 'FSRepo' => 'includes/filerepo/FSRepo.php', - 'Image' => 'includes/filerepo/Image.php', - 'LocalFileDeleteBatch' => 'includes/filerepo/LocalFile.php', - 'LocalFile' => 'includes/filerepo/LocalFile.php', - 'LocalFileRestoreBatch' => 'includes/filerepo/LocalFile.php', - 'LocalRepo' => 'includes/filerepo/LocalRepo.php', - 'OldLocalFile' => 'includes/filerepo/OldLocalFile.php', - 'RepoGroup' => 'includes/filerepo/RepoGroup.php', - 'UnregisteredLocalFile' => 'includes/filerepo/UnregisteredLocalFile.php', - - # Media - 'BitmapHandler' => 'includes/media/Bitmap.php', - 'BmpHandler' => 'includes/media/BMP.php', - 'DjVuHandler' => 'includes/media/DjVu.php', - 'ImageHandler' => 'includes/media/Generic.php', - 'MediaHandler' => 'includes/media/Generic.php', - 'SvgHandler' => 'includes/media/SVG.php', - - # Normal - 'UtfNormal' => 'includes/normal/UtfNormal.php', - - # Templates - 'UsercreateTemplate' => 'includes/templates/Userlogin.php', - 'UserloginTemplate' => 'includes/templates/Userlogin.php', - - # Languages - 'Language' => 'languages/Language.php', - - # API + # includes/api 'ApiBase' => 'includes/api/ApiBase.php', + 'ApiBlock' => 'includes/api/ApiBlock.php', + 'ApiDelete' => 'includes/api/ApiDelete.php', + 'ApiEditPage' => 'includes/api/ApiEditPage.php', 'ApiEmailUser' => 'includes/api/ApiEmailUser.php', 'ApiExpandTemplates' => 'includes/api/ApiExpandTemplates.php', 'ApiFeedWatchlist' => 'includes/api/ApiFeedWatchlist.php', @@ -352,28 +234,32 @@ function __autoload($className) { 'ApiLogin' => 'includes/api/ApiLogin.php', 'ApiLogout' => 'includes/api/ApiLogout.php', 'ApiMain' => 'includes/api/ApiMain.php', + 'ApiMove' => 'includes/api/ApiMove.php', 'ApiOpenSearch' => 'includes/api/ApiOpenSearch.php', 'ApiPageSet' => 'includes/api/ApiPageSet.php', 'ApiParamInfo' => 'includes/api/ApiParamInfo.php', 'ApiParse' => 'includes/api/ApiParse.php', - 'ApiQueryAllImages' => 'includes/api/ApiQueryAllimages.php', + 'ApiProtect' => 'includes/api/ApiProtect.php', + 'ApiQuery' => 'includes/api/ApiQuery.php', 'ApiQueryAllCategories' => 'includes/api/ApiQueryAllCategories.php', + 'ApiQueryAllimages' => 'includes/api/ApiQueryAllimages.php', 'ApiQueryAllLinks' => 'includes/api/ApiQueryAllLinks.php', + 'ApiQueryAllUsers' => 'includes/api/ApiQueryAllUsers.php', 'ApiQueryAllmessages' => 'includes/api/ApiQueryAllmessages.php', 'ApiQueryAllpages' => 'includes/api/ApiQueryAllpages.php', - 'ApiQueryAllUsers' => 'includes/api/ApiQueryAllUsers.php', 'ApiQueryBacklinks' => 'includes/api/ApiQueryBacklinks.php', 'ApiQueryBase' => 'includes/api/ApiQueryBase.php', + 'ApiQueryBlocks' => 'includes/api/ApiQueryBlocks.php', 'ApiQueryCategories' => 'includes/api/ApiQueryCategories.php', - 'ApiQueryCategoryMembers' => 'includes/api/ApiQueryCategoryMembers.php', 'ApiQueryCategoryInfo' => 'includes/api/ApiQueryCategoryInfo.php', + 'ApiQueryCategoryMembers' => 'includes/api/ApiQueryCategoryMembers.php', 'ApiQueryContributions' => 'includes/api/ApiQueryUserContributions.php', - 'ApiQueryExternalLinks' => 'includes/api/ApiQueryExternalLinks.php', + 'ApiQueryDeletedrevs' => 'includes/api/ApiQueryDeletedrevs.php', 'ApiQueryExtLinksUsage' => 'includes/api/ApiQueryExtLinksUsage.php', + 'ApiQueryExternalLinks' => 'includes/api/ApiQueryExternalLinks.php', 'ApiQueryGeneratorBase' => 'includes/api/ApiQueryBase.php', 'ApiQueryImageInfo' => 'includes/api/ApiQueryImageInfo.php', 'ApiQueryImages' => 'includes/api/ApiQueryImages.php', - 'ApiQuery' => 'includes/api/ApiQuery.php', 'ApiQueryInfo' => 'includes/api/ApiQueryInfo.php', 'ApiQueryLangLinks' => 'includes/api/ApiQueryLangLinks.php', 'ApiQueryLinks' => 'includes/api/ApiQueryLinks.php', @@ -387,67 +273,247 @@ function __autoload($className) { 'ApiQueryUsers' => 'includes/api/ApiQueryUsers.php', 'ApiQueryWatchlist' => 'includes/api/ApiQueryWatchlist.php', 'ApiResult' => 'includes/api/ApiResult.php', - 'Services_JSON' => 'includes/api/ApiFormatJson_json.php', - 'Spyc' => 'includes/api/ApiFormatYaml_spyc.php', - - # apiedit branch - 'ApiBlock' => 'includes/api/ApiBlock.php', - 'ApiDelete' => 'includes/api/ApiDelete.php', - 'ApiEditPage' => 'includes/api/ApiEditPage.php', - 'ApiMove' => 'includes/api/ApiMove.php', - 'ApiProtect' => 'includes/api/ApiProtect.php', - 'ApiQueryBlocks' => 'includes/api/ApiQueryBlocks.php', - 'ApiQueryDeletedrevs' => 'includes/api/ApiQueryDeletedrevs.php', 'ApiRollback' => 'includes/api/ApiRollback.php', 'ApiUnblock' => 'includes/api/ApiUnblock.php', 'ApiUndelete' => 'includes/api/ApiUndelete.php', + 'Services_JSON' => 'includes/api/ApiFormatJson_json.php', + 'Services_JSON_Error' => 'includes/api/ApiFormatJson_json.php', + 'Spyc' => 'includes/api/ApiFormatYaml_spyc.php', + 'UsageException' => 'includes/api/ApiMain.php', + 'YAMLNode' => 'includes/api/ApiFormatYaml_spyc.php', + + # includes/db + 'Blob' => 'includes/db/Database.php', + 'ChronologyProtector' => 'includes/db/LBFactory.php', + 'Database' => 'includes/db/Database.php', + 'DatabaseMssql' => 'includes/db/DatabaseMssql.php', + 'DatabaseMysql' => 'includes/db/Database.php', + 'DatabaseOracle' => 'includes/db/DatabaseOracle.php', + 'DatabasePostgres' => 'includes/db/DatabasePostgres.php', + 'DatabaseSqlite' => 'includes/db/DatabaseSqlite.php', + 'DBConnectionError' => 'includes/db/Database.php', + 'DBError' => 'includes/db/Database.php', + 'DBObject' => 'includes/db/Database.php', + 'DBQueryError' => 'includes/db/Database.php', + 'DBUnexpectedError' => 'includes/db/Database.php', + 'LBFactory' => 'includes/db/LBFactory.php', + 'LBFactory_Multi' => 'includes/db/LBFactory_Multi.php', + 'LBFactory_Simple' => 'includes/db/LBFactory.php', + 'LoadBalancer' => 'includes/db/LoadBalancer.php', + 'MSSQLField' => 'includes/db/DatabaseMssql.php', + 'MySQLField' => 'includes/db/Database.php', + 'MySQLMasterPos' => 'includes/db/Database.php', + 'ORABlob' => 'includes/db/DatabaseOracle.php', + 'ORAResult' => 'includes/db/DatabaseOracle.php', + 'PostgresField' => 'includes/db/DatabasePostgres.php', + 'ResultWrapper' => 'includes/db/Database.php', + 'SQLiteField' => 'includes/db/DatabaseSqlite.php', + + # includes/filerepo + 'ArchivedFile' => 'includes/filerepo/ArchivedFile.php', + 'File' => 'includes/filerepo/File.php', + 'FileRepo' => 'includes/filerepo/FileRepo.php', + 'FileRepoStatus' => 'includes/filerepo/FileRepoStatus.php', + 'ForeignAPIFile' => 'includes/filerepo/ForeignAPIFile.php', + 'ForeignAPIRepo' => 'includes/filerepo/ForeignAPIRepo.php', + 'ForeignDBFile' => 'includes/filerepo/ForeignDBFile.php', + 'ForeignDBRepo' => 'includes/filerepo/ForeignDBRepo.php', + 'ForeignDBViaLBRepo' => 'includes/filerepo/ForeignDBViaLBRepo.php', + 'FSRepo' => 'includes/filerepo/FSRepo.php', + 'Image' => 'includes/filerepo/Image.php', + 'LocalFile' => 'includes/filerepo/LocalFile.php', + 'LocalFileDeleteBatch' => 'includes/filerepo/LocalFile.php', + 'LocalFileMoveBatch' => 'includes/filerepo/LocalFile.php', + 'LocalFileRestoreBatch' => 'includes/filerepo/LocalFile.php', + 'LocalRepo' => 'includes/filerepo/LocalRepo.php', + 'OldLocalFile' => 'includes/filerepo/OldLocalFile.php', + 'RepoGroup' => 'includes/filerepo/RepoGroup.php', + 'UnregisteredLocalFile' => 'includes/filerepo/UnregisteredLocalFile.php', + + # includes/media + 'BitmapHandler' => 'includes/media/Bitmap.php', + 'BmpHandler' => 'includes/media/BMP.php', + 'DjVuHandler' => 'includes/media/DjVu.php', + 'ImageHandler' => 'includes/media/Generic.php', + 'MediaHandler' => 'includes/media/Generic.php', + 'SvgHandler' => 'includes/media/SVG.php', + + # includes/normal + 'UtfNormal' => 'includes/normal/UtfNormal.php', + + # includes/parser + 'CoreParserFunctions' => 'includes/parser/CoreParserFunctions.php', + 'DateFormatter' => 'includes/parser/DateFormatter.php', + 'OnlyIncludeReplacer' => 'includes/parser/Parser.php', + 'PPDAccum_Hash' => 'includes/parser/Preprocessor_Hash.php', + 'PPDPart' => 'includes/parser/Preprocessor_DOM.php', + 'PPDPart_Hash' => 'includes/parser/Preprocessor_Hash.php', + 'PPDStack' => 'includes/parser/Preprocessor_DOM.php', + 'PPDStackElement' => 'includes/parser/Preprocessor_DOM.php', + 'PPDStackElement_Hash' => 'includes/parser/Preprocessor_Hash.php', + 'PPDStack_Hash' => 'includes/parser/Preprocessor_Hash.php', + 'PPFrame' => 'includes/parser/Preprocessor.php', + 'PPFrame_DOM' => 'includes/parser/Preprocessor_DOM.php', + 'PPFrame_Hash' => 'includes/parser/Preprocessor_Hash.php', + 'PPNode' => 'includes/parser/Preprocessor.php', + 'PPNode_DOM' => 'includes/parser/Preprocessor_DOM.php', + 'PPNode_Hash_Array' => 'includes/parser/Preprocessor_Hash.php', + 'PPNode_Hash_Attr' => 'includes/parser/Preprocessor_Hash.php', + 'PPNode_Hash_Text' => 'includes/parser/Preprocessor_Hash.php', + 'PPNode_Hash_Tree' => 'includes/parser/Preprocessor_Hash.php', + 'PPTemplateFrame_DOM' => 'includes/parser/Preprocessor_DOM.php', + 'PPTemplateFrame_Hash' => 'includes/parser/Preprocessor_Hash.php', + 'Parser' => 'includes/parser/Parser.php', + 'ParserCache' => 'includes/parser/ParserCache.php', + 'ParserOptions' => 'includes/parser/ParserOptions.php', + 'ParserOutput' => 'includes/parser/ParserOutput.php', + 'Parser_DiffTest' => 'includes/parser/Parser_DiffTest.php', + 'Parser_OldPP' => 'includes/parser/Parser_OldPP.php', + 'Preprocessor' => 'includes/parser/Preprocessor.php', + 'Preprocessor_DOM' => 'includes/parser/Preprocessor_DOM.php', + 'Preprocessor_Hash' => 'includes/parser/Preprocessor_Hash.php', + 'StripState' => 'includes/parser/Parser.php', + + # includes/specials + 'AncientPagesPage' => 'includes/specials/Ancientpages.php', + 'BrokenRedirectsPage' => 'includes/specials/BrokenRedirects.php', + 'ContribsPager' => 'includes/specials/Contributions.php', + 'DBLockForm' => 'includes/specials/Lockdb.php', + 'DBUnlockForm' => 'includes/specials/Unlockdb.php', + 'DeadendPagesPage' => 'includes/specials/Deadendpages.php', + 'DisambiguationsPage' => 'includes/specials/Disambiguations.php', + 'DoubleRedirectsPage' => 'includes/specials/DoubleRedirects.php', + 'EmailConfirmation' => 'includes/specials/Confirmemail.php', + 'EmailInvalidation' => 'includes/specials/Confirmemail.php', + 'EmailUserForm' => 'includes/specials/Emailuser.php', + 'FewestrevisionsPage' => 'includes/specials/Fewestrevisions.php', + 'FileDuplicateSearchPage' => 'includes/specials/FileDuplicateSearch.php', + 'IPBlockForm' => 'includes/specials/Blockip.php', + 'IPBlocklistPager' => 'includes/specials/Ipblocklist.php', + 'IPUnblockForm' => 'includes/specials/Ipblocklist.php', + 'ImportReporter' => 'includes/specials/Import.php', + 'ImportStreamSource' => 'includes/specials/Import.php', + 'ImportStringSource' => 'includes/specials/Import.php', + 'ListredirectsPage' => 'includes/specials/Listredirects.php', + 'LoginForm' => 'includes/specials/Userlogin.php', + 'LonelyPagesPage' => 'includes/specials/Lonelypages.php', + 'LongPagesPage' => 'includes/specials/Longpages.php', + 'MIMEsearchPage' => 'includes/specials/MIMEsearch.php', + 'MostcategoriesPage' => 'includes/specials/Mostcategories.php', + 'MostimagesPage' => 'includes/specials/Mostimages.php', + 'MostlinkedCategoriesPage' => 'includes/specials/Mostlinkedcategories.php', + 'MostlinkedPage' => 'includes/specials/Mostlinked.php', + 'MostrevisionsPage' => 'includes/specials/Mostrevisions.php', + 'MovePageForm' => 'includes/specials/Movepage.php', + 'NewPagesForm' => 'includes/specials/Newpages.php', + 'NewPagesPager' => 'includes/specials/Newpages.php', + 'PageArchive' => 'includes/specials/Undelete.php', + 'PasswordResetForm' => 'includes/specials/Resetpass.php', + 'PopularPagesPage' => 'includes/specials/Popularpages.php', + 'PreferencesForm' => 'includes/specials/Preferences.php', + 'RandomPage' => 'includes/specials/Randompage.php', + 'RevisionDeleteForm' => 'includes/specials/Revisiondelete.php', + 'RevisionDeleter' => 'includes/specials/Revisiondelete.php', + 'ShortPagesPage' => 'includes/specials/Shortpages.php', + 'SpecialAllpages' => 'includes/specials/Allpages.php', + 'SpecialBookSources' => 'includes/specials/Booksources.php', + 'SpecialListGroupRights' => 'includes/specials/Listgrouprights.php', + 'SpecialMostlinkedtemplates' => 'includes/specials/Mostlinkedtemplates.php', + 'SpecialPrefixindex' => 'includes/specials/Prefixindex.php', + 'SpecialRandomredirect' => 'includes/specials/Randomredirect.php', + 'SpecialSearch' => 'includes/specials/Search.php', + 'SpecialVersion' => 'includes/specials/Version.php', + 'UncategorizedCategoriesPage' => 'includes/specials/Uncategorizedcategories.php', + 'UncategorizedPagesPage' => 'includes/specials/Uncategorizedpages.php', + 'UncategorizedTemplatesPage' => 'includes/specials/Uncategorizedtemplates.php', + 'UndeleteForm' => 'includes/specials/Undelete.php', + 'UnusedCategoriesPage' => 'includes/specials/Unusedcategories.php', + 'UnusedimagesPage' => 'includes/specials/Unusedimages.php', + 'UnusedtemplatesPage' => 'includes/specials/Unusedtemplates.php', + 'UnwatchedpagesPage' => 'includes/specials/Unwatchedpages.php', + 'UploadForm' => 'includes/specials/Upload.php', + 'UploadFormMogile' => 'includes/specials/UploadMogile.php', + 'UserrightsPage' => 'includes/specials/Userrights.php', + 'UsersPager' => 'includes/specials/Listusers.php', + 'WantedCategoriesPage' => 'includes/specials/Wantedcategories.php', + 'WantedPagesPage' => 'includes/specials/Wantedpages.php', + 'WhatLinksHerePage' => 'includes/specials/Whatlinkshere.php', + 'WikiImporter' => 'includes/specials/Import.php', + 'WikiRevision' => 'includes/specials/Import.php', + 'WithoutInterwikiPage' => 'includes/specials/Withoutinterwiki.php', + + # includes/templates + 'UsercreateTemplate' => 'includes/templates/Userlogin.php', + 'UserloginTemplate' => 'includes/templates/Userlogin.php', + + # languages + 'Language' => 'languages/Language.php', + 'FakeConverter' => 'languages/Language.php', + ); - wfProfileIn( __METHOD__ ); - if ( isset( $localClasses[$className] ) ) { - $filename = $localClasses[$className]; - } elseif ( isset( $wgAutoloadClasses[$className] ) ) { - $filename = $wgAutoloadClasses[$className]; - } else { - # Try a different capitalisation - # The case can sometimes be wrong when unserializing PHP 4 objects - $filename = false; - $lowerClass = strtolower( $className ); - foreach ( $localClasses as $class2 => $file2 ) { - if ( strtolower( $class2 ) == $lowerClass ) { - $filename = $file2; + static function autoload( $className ) { + global $wgAutoloadClasses; + + wfProfileIn( __METHOD__ ); + if ( isset( self::$localClasses[$className] ) ) { + $filename = self::$localClasses[$className]; + } elseif ( isset( $wgAutoloadClasses[$className] ) ) { + $filename = $wgAutoloadClasses[$className]; + } else { + # Try a different capitalisation + # The case can sometimes be wrong when unserializing PHP 4 objects + $filename = false; + $lowerClass = strtolower( $className ); + foreach ( self::$localClasses as $class2 => $file2 ) { + if ( strtolower( $class2 ) == $lowerClass ) { + $filename = $file2; + } + } + if ( !$filename ) { + # Give up + wfProfileOut( __METHOD__ ); + return; } } - if ( !$filename ) { - # Give up - wfProfileOut( __METHOD__ ); - return; + + # Make an absolute path, this improves performance by avoiding some stat calls + if ( substr( $filename, 0, 1 ) != '/' && substr( $filename, 1, 1 ) != ':' ) { + global $IP; + $filename = "$IP/$filename"; } + require( $filename ); + wfProfileOut( __METHOD__ ); } - # Make an absolute path, this improves performance by avoiding some stat calls - if ( substr( $filename, 0, 1 ) != '/' && substr( $filename, 1, 1 ) != ':' ) { - global $IP; - $filename = "$IP/$filename"; + static function loadAllExtensions() { + global $wgAutoloadClasses; + + # It is crucial that SpecialPage.php is included before any special page + # extensions are loaded. Otherwise the parent class will not be available + # when APC loads the early-bound extension class. Normally this is + # guaranteed by entering special pages via SpecialPage members such as + # executePath(), but here we have to take a more explicit measure. + + require_once( dirname(__FILE__) . '/SpecialPage.php' ); + + foreach( $wgAutoloadClasses as $class => $file ) { + if( !( class_exists( $class ) || interface_exists( $class ) ) ) { + require( $file ); + } + } } - require( $filename ); - wfProfileOut( __METHOD__ ); } function wfLoadAllExtensions() { - global $wgAutoloadClasses; - - # It is crucial that SpecialPage.php is included before any special page - # extensions are loaded. Otherwise the parent class will not be available - # when APC loads the early-bound extension class. Normally this is - # guaranteed by entering special pages via SpecialPage members such as - # executePath(), but here we have to take a more explicit measure. - - require_once( dirname(__FILE__) . '/SpecialPage.php' ); + AutoLoader::loadAllExtensions(); +} - foreach( $wgAutoloadClasses as $class => $file ) { - if( !( class_exists( $class ) || interface_exists( $class ) ) ) { - require( $file ); - } +if ( function_exists( 'spl_autoload_register' ) ) { + spl_autoload_register( array( 'AutoLoader', 'autoload' ) ); +} else { + function __autoload( $class ) { + AutoLoader::autoload( $class ); } } + diff --git a/includes/CoreParserFunctions.php b/includes/CoreParserFunctions.php deleted file mode 100644 index d9072e9310..0000000000 --- a/includes/CoreParserFunctions.php +++ /dev/null @@ -1,385 +0,0 @@ -setFunctionHook( 'int', array( __CLASS__, 'intFunction' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'ns', array( __CLASS__, 'ns' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'urlencode', array( __CLASS__, 'urlencode' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'lcfirst', array( __CLASS__, 'lcfirst' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'ucfirst', array( __CLASS__, 'ucfirst' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'lc', array( __CLASS__, 'lc' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'uc', array( __CLASS__, 'uc' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'localurl', array( __CLASS__, 'localurl' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'localurle', array( __CLASS__, 'localurle' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'fullurl', array( __CLASS__, 'fullurl' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'fullurle', array( __CLASS__, 'fullurle' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'formatnum', array( __CLASS__, 'formatnum' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'grammar', array( __CLASS__, 'grammar' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'plural', array( __CLASS__, 'plural' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'numberofpages', array( __CLASS__, 'numberofpages' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'numberofusers', array( __CLASS__, 'numberofusers' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'numberofarticles', array( __CLASS__, 'numberofarticles' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'numberoffiles', array( __CLASS__, 'numberoffiles' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'numberofadmins', array( __CLASS__, 'numberofadmins' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'numberofedits', array( __CLASS__, 'numberofedits' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'language', array( __CLASS__, 'language' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'padleft', array( __CLASS__, 'padleft' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'padright', array( __CLASS__, 'padright' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'anchorencode', array( __CLASS__, 'anchorencode' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'special', array( __CLASS__, 'special' ) ); - $parser->setFunctionHook( 'defaultsort', array( __CLASS__, 'defaultsort' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'filepath', array( __CLASS__, 'filepath' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'pagesincategory', array( __CLASS__, 'pagesincategory' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'pagesize', array( __CLASS__, 'pagesize' ), SFH_NO_HASH ); - $parser->setFunctionHook( 'tag', array( __CLASS__, 'tagObj' ), SFH_OBJECT_ARGS ); - - if ( $wgAllowDisplayTitle ) { - $parser->setFunctionHook( 'displaytitle', array( __CLASS__, 'displaytitle' ), SFH_NO_HASH ); - } - if ( $wgAllowSlowParserFunctions ) { - $parser->setFunctionHook( 'pagesinnamespace', array( __CLASS__, 'pagesinnamespace' ), SFH_NO_HASH ); - } - } - - static function intFunction( $parser, $part1 = '' /*, ... */ ) { - if ( strval( $part1 ) !== '' ) { - $args = array_slice( func_get_args(), 2 ); - return wfMsgReal( $part1, $args, true ); - } else { - return array( 'found' => false ); - } - } - - static function ns( $parser, $part1 = '' ) { - global $wgContLang; - $found = false; - if ( intval( $part1 ) || $part1 == "0" ) { - $text = $wgContLang->getNsText( intval( $part1 ) ); - $found = true; - } else { - $param = str_replace( ' ', '_', strtolower( $part1 ) ); - $index = MWNamespace::getCanonicalIndex( strtolower( $param ) ); - if ( !is_null( $index ) ) { - $text = $wgContLang->getNsText( $index ); - $found = true; - } - } - if ( $found ) { - return $text; - } else { - return array( 'found' => false ); - } - } - - static function urlencode( $parser, $s = '' ) { - return urlencode( $s ); - } - - static function lcfirst( $parser, $s = '' ) { - global $wgContLang; - return $wgContLang->lcfirst( $s ); - } - - static function ucfirst( $parser, $s = '' ) { - global $wgContLang; - return $wgContLang->ucfirst( $s ); - } - - static function lc( $parser, $s = '' ) { - global $wgContLang; - if ( is_callable( array( $parser, 'markerSkipCallback' ) ) ) { - return $parser->markerSkipCallback( $s, array( $wgContLang, 'lc' ) ); - } else { - return $wgContLang->lc( $s ); - } - } - - static function uc( $parser, $s = '' ) { - global $wgContLang; - if ( is_callable( array( $parser, 'markerSkipCallback' ) ) ) { - return $parser->markerSkipCallback( $s, array( $wgContLang, 'uc' ) ); - } else { - return $wgContLang->uc( $s ); - } - } - - static function localurl( $parser, $s = '', $arg = null ) { return self::urlFunction( 'getLocalURL', $s, $arg ); } - static function localurle( $parser, $s = '', $arg = null ) { return self::urlFunction( 'escapeLocalURL', $s, $arg ); } - static function fullurl( $parser, $s = '', $arg = null ) { return self::urlFunction( 'getFullURL', $s, $arg ); } - static function fullurle( $parser, $s = '', $arg = null ) { return self::urlFunction( 'escapeFullURL', $s, $arg ); } - - static function urlFunction( $func, $s = '', $arg = null ) { - $title = Title::newFromText( $s ); - # Due to order of execution of a lot of bits, the values might be encoded - # before arriving here; if that's true, then the title can't be created - # and the variable will fail. If we can't get a decent title from the first - # attempt, url-decode and try for a second. - if( is_null( $title ) ) - $title = Title::newFromUrl( urldecode( $s ) ); - if ( !is_null( $title ) ) { - if ( !is_null( $arg ) ) { - $text = $title->$func( $arg ); - } else { - $text = $title->$func(); - } - return $text; - } else { - return array( 'found' => false ); - } - } - - static function formatNum( $parser, $num = '', $raw = null) { - if ( self::israw( $raw ) ) { - return $parser->getFunctionLang()->parseFormattedNumber( $num ); - } else { - return $parser->getFunctionLang()->formatNum( $num ); - } - } - - static function grammar( $parser, $case = '', $word = '' ) { - return $parser->getFunctionLang()->convertGrammar( $word, $case ); - } - - static function plural( $parser, $text = '') { - $forms = array_slice( func_get_args(), 2); - $text = $parser->getFunctionLang()->parseFormattedNumber( $text ); - return $parser->getFunctionLang()->convertPlural( $text, $forms ); - } - - /** - * Override the title of the page when viewed, provided we've been given a - * title which will normalise to the canonical title - * - * @param Parser $parser Parent parser - * @param string $text Desired title text - * @return string - */ - static function displaytitle( $parser, $text = '' ) { - $text = trim( Sanitizer::decodeCharReferences( $text ) ); - $title = Title::newFromText( $text ); - if( $title instanceof Title && $title->getFragment() == '' && $title->equals( $parser->mTitle ) ) - $parser->mOutput->setDisplayTitle( $text ); - return ''; - } - - static function isRaw( $param ) { - static $mwRaw; - if ( !$mwRaw ) { - $mwRaw =& MagicWord::get( 'rawsuffix' ); - } - if ( is_null( $param ) ) { - return false; - } else { - return $mwRaw->match( $param ); - } - } - - static function formatRaw( $num, $raw ) { - if( self::isRaw( $raw ) ) { - return $num; - } else { - global $wgContLang; - return $wgContLang->formatNum( $num ); - } - } - static function numberofpages( $parser, $raw = null ) { - return self::formatRaw( SiteStats::pages(), $raw ); - } - static function numberofusers( $parser, $raw = null ) { - return self::formatRaw( SiteStats::users(), $raw ); - } - static function numberofarticles( $parser, $raw = null ) { - return self::formatRaw( SiteStats::articles(), $raw ); - } - static function numberoffiles( $parser, $raw = null ) { - return self::formatRaw( SiteStats::images(), $raw ); - } - static function numberofadmins( $parser, $raw = null ) { - return self::formatRaw( SiteStats::admins(), $raw ); - } - static function numberofedits( $parser, $raw = null ) { - return self::formatRaw( SiteStats::edits(), $raw ); - } - static function pagesinnamespace( $parser, $namespace = 0, $raw = null ) { - return self::formatRaw( SiteStats::pagesInNs( intval( $namespace ) ), $raw ); - } - - /** - * Return the number of pages in the given category, or 0 if it's nonexis- - * tent. This is an expensive parser function and can't be called too many - * times per page. - */ - static function pagesincategory( $parser, $name = '', $raw = null ) { - static $cache = array(); - $category = Category::newFromName( $name ); - - if( !is_object( $category ) ) { - $cache[$name] = 0; - return self::formatRaw( 0, $raw ); - } - - # Normalize name for cache - $name = $category->getName(); - - $count = 0; - if( isset( $cache[$name] ) ) { - $count = $cache[$name]; - } elseif( $parser->incrementExpensiveFunctionCount() ) { - $count = $cache[$name] = (int)$category->getPageCount(); - } - return self::formatRaw( $count, $raw ); - } - - /** - * Return the size of the given page, or 0 if it's nonexistent. This is an - * expensive parser function and can't be called too many times per page. - * - * @FIXME This doesn't work correctly on preview for getting the size of - * the current page. - * @FIXME Title::getLength() documentation claims that it adds things to - * the link cache, so the local cache here should be unnecessary, but in - * fact calling getLength() repeatedly for the same $page does seem to - * run one query for each call? - */ - static function pagesize( $parser, $page = '', $raw = null ) { - static $cache = array(); - $title = Title::newFromText($page); - - if( !is_object( $title ) ) { - $cache[$page] = 0; - return self::formatRaw( 0, $raw ); - } - - # Normalize name for cache - $page = $title->getPrefixedText(); - - $length = 0; - if( isset( $cache[$page] ) ) { - $length = $cache[$page]; - } elseif( $parser->incrementExpensiveFunctionCount() ) { - $length = $cache[$page] = $title->getLength(); - - // Register dependency in templatelinks - $id = $title->getArticleId(); - $revid = Revision::newFromTitle($title); - $parser->mOutput->addTemplate($title, $id, $revid); - } - return self::formatRaw( $length, $raw ); - } - - static function language( $parser, $arg = '' ) { - global $wgContLang; - $lang = $wgContLang->getLanguageName( strtolower( $arg ) ); - return $lang != '' ? $lang : $arg; - } - - static function pad( $string = '', $length = 0, $char = 0, $direction = STR_PAD_RIGHT ) { - $length = min( max( $length, 0 ), 500 ); - $char = substr( $char, 0, 1 ); - return ( $string !== '' && (int)$length > 0 && strlen( trim( (string)$char ) ) > 0 ) - ? str_pad( $string, $length, (string)$char, $direction ) - : $string; - } - - static function padleft( $parser, $string = '', $length = 0, $char = 0 ) { - return self::pad( $string, $length, $char, STR_PAD_LEFT ); - } - - static function padright( $parser, $string = '', $length = 0, $char = 0 ) { - return self::pad( $string, $length, $char ); - } - - static function anchorencode( $parser, $text ) { - $a = urlencode( $text ); - $a = strtr( $a, array( '%' => '.', '+' => '_' ) ); - # leave colons alone, however - $a = str_replace( '.3A', ':', $a ); - return $a; - } - - static function special( $parser, $text ) { - $title = SpecialPage::getTitleForAlias( $text ); - if ( $title ) { - return $title->getPrefixedText(); - } else { - return wfMsgForContent( 'nosuchspecialpage' ); - } - } - - public static function defaultsort( $parser, $text ) { - $text = trim( $text ); - if( strlen( $text ) > 0 ) - $parser->setDefaultSort( $text ); - return ''; - } - - public static function filepath( $parser, $name='', $option='' ) { - $file = wfFindFile( $name ); - if( $file ) { - $url = $file->getFullUrl(); - if( $option == 'nowiki' ) { - return "$url"; - } - return $url; - } else { - return ''; - } - } - - /** - * Parser function to extension tag adaptor - */ - public static function tagObj( $parser, $frame, $args ) { - $xpath = false; - if ( !count( $args ) ) { - return ''; - } - $tagName = strtolower( trim( $frame->expand( array_shift( $args ) ) ) ); - - if ( count( $args ) ) { - $inner = $frame->expand( array_shift( $args ) ); - } else { - $inner = null; - } - - $stripList = $parser->getStripList(); - if ( !in_array( $tagName, $stripList ) ) { - return '' . - wfMsg( 'unknown_extension_tag', $tagName ) . - ''; - } - - $attributes = array(); - foreach ( $args as $arg ) { - $bits = $arg->splitArg(); - if ( strval( $bits['index'] ) === '' ) { - $name = $frame->expand( $bits['name'], PPFrame::STRIP_COMMENTS ); - $value = trim( $frame->expand( $bits['value'] ) ); - if ( preg_match( '/^(?:["\'](.+)["\']|""|\'\')$/s', $value, $m ) ) { - $value = isset( $m[1] ) ? $m[1] : ''; - } - $attributes[$name] = $value; - } - } - - $params = array( - 'name' => $tagName, - 'inner' => $inner, - 'attributes' => $attributes, - 'close' => "", - ); - return $parser->extensionSubstitution( $params, $frame ); - } -} diff --git a/includes/Database.php b/includes/Database.php deleted file mode 100644 index b6a8c8bde6..0000000000 --- a/includes/Database.php +++ /dev/null @@ -1,2700 +0,0 @@ -mFailFunction, $function ); - } - - /** - * Output page, used for reporting errors - * FALSE means discard output - */ - function setOutputPage( $out ) { - $this->mOut = $out; - } - - /** - * Boolean, controls output of large amounts of debug information - */ - function debug( $debug = NULL ) { - return wfSetBit( $this->mFlags, DBO_DEBUG, $debug ); - } - - /** - * Turns buffering of SQL result sets on (true) or off (false). - * Default is "on" and it should not be changed without good reasons. - */ - function bufferResults( $buffer = NULL ) { - if ( is_null( $buffer ) ) { - return !(bool)( $this->mFlags & DBO_NOBUFFER ); - } else { - return !wfSetBit( $this->mFlags, DBO_NOBUFFER, !$buffer ); - } - } - - /** - * Turns on (false) or off (true) the automatic generation and sending - * of a "we're sorry, but there has been a database error" page on - * database errors. Default is on (false). When turned off, the - * code should use lastErrno() and lastError() to handle the - * situation as appropriate. - */ - function ignoreErrors( $ignoreErrors = NULL ) { - return wfSetBit( $this->mFlags, DBO_IGNORE, $ignoreErrors ); - } - - /** - * The current depth of nested transactions - * @param $level Integer: , default NULL. - */ - function trxLevel( $level = NULL ) { - return wfSetVar( $this->mTrxLevel, $level ); - } - - /** - * Number of errors logged, only useful when errors are ignored - */ - function errorCount( $count = NULL ) { - return wfSetVar( $this->mErrorCount, $count ); - } - - function tablePrefix( $prefix = null ) { - return wfSetVar( $this->mTablePrefix, $prefix ); - } - - /** - * Properties passed down from the server info array of the load balancer - */ - function getLBInfo( $name = NULL ) { - if ( is_null( $name ) ) { - return $this->mLBInfo; - } else { - if ( array_key_exists( $name, $this->mLBInfo ) ) { - return $this->mLBInfo[$name]; - } else { - return NULL; - } - } - } - - function setLBInfo( $name, $value = NULL ) { - if ( is_null( $value ) ) { - $this->mLBInfo = $name; - } else { - $this->mLBInfo[$name] = $value; - } - } - - /** - * Set lag time in seconds for a fake slave - */ - function setFakeSlaveLag( $lag ) { - $this->mFakeSlaveLag = $lag; - } - - /** - * Make this connection a fake master - */ - function setFakeMaster( $enabled = true ) { - $this->mFakeMaster = $enabled; - } - - /** - * Returns true if this database supports (and uses) cascading deletes - */ - function cascadingDeletes() { - return false; - } - - /** - * Returns true if this database supports (and uses) triggers (e.g. on the page table) - */ - function cleanupTriggers() { - return false; - } - - /** - * Returns true if this database is strict about what can be put into an IP field. - * Specifically, it uses a NULL value instead of an empty string. - */ - function strictIPs() { - return false; - } - - /** - * Returns true if this database uses timestamps rather than integers - */ - function realTimestamps() { - return false; - } - - /** - * Returns true if this database does an implicit sort when doing GROUP BY - */ - function implicitGroupby() { - return true; - } - - /** - * Returns true if this database does an implicit order by when the column has an index - * For example: SELECT page_title FROM page LIMIT 1 - */ - function implicitOrderby() { - return true; - } - - /** - * Returns true if this database can do a native search on IP columns - * e.g. this works as expected: .. WHERE rc_ip = '127.42.12.102/32'; - */ - function searchableIPs() { - return false; - } - - /** - * Returns true if this database can use functional indexes - */ - function functionalIndexes() { - return false; - } - - /**#@+ - * Get function - */ - function lastQuery() { return $this->mLastQuery; } - function isOpen() { return $this->mOpened; } - /**#@-*/ - - function setFlag( $flag ) { - $this->mFlags |= $flag; - } - - function clearFlag( $flag ) { - $this->mFlags &= ~$flag; - } - - function getFlag( $flag ) { - return !!($this->mFlags & $flag); - } - - /** - * General read-only accessor - */ - function getProperty( $name ) { - return $this->$name; - } - - function getWikiID() { - if( $this->mTablePrefix ) { - return "{$this->mDBname}-{$this->mTablePrefix}"; - } else { - return $this->mDBname; - } - } - -#------------------------------------------------------------------------------ -# Other functions -#------------------------------------------------------------------------------ - - /**@{{ - * Constructor. - * @param string $server database server host - * @param string $user database user name - * @param string $password database user password - * @param string $dbname database name - * @param failFunction - * @param $flags - * @param $tablePrefix String: database table prefixes. By default use the prefix gave in LocalSettings.php - */ - function __construct( $server = false, $user = false, $password = false, $dbName = false, - $failFunction = false, $flags = 0, $tablePrefix = 'get from global' ) { - - global $wgOut, $wgDBprefix, $wgCommandLineMode; - # Can't get a reference if it hasn't been set yet - if ( !isset( $wgOut ) ) { - $wgOut = NULL; - } - $this->mOut =& $wgOut; - - $this->mFailFunction = $failFunction; - $this->mFlags = $flags; - - if ( $this->mFlags & DBO_DEFAULT ) { - if ( $wgCommandLineMode ) { - $this->mFlags &= ~DBO_TRX; - } else { - $this->mFlags |= DBO_TRX; - } - } - - /* - // Faster read-only access - if ( wfReadOnly() ) { - $this->mFlags |= DBO_PERSISTENT; - $this->mFlags &= ~DBO_TRX; - }*/ - - /** Get the default table prefix*/ - if ( $tablePrefix == 'get from global' ) { - $this->mTablePrefix = $wgDBprefix; - } else { - $this->mTablePrefix = $tablePrefix; - } - - if ( $server ) { - $this->open( $server, $user, $password, $dbName ); - } - } - - /** - * @static - * @param failFunction - * @param $flags - */ - static function newFromParams( $server, $user, $password, $dbName, $failFunction = false, $flags = 0 ) - { - return new Database( $server, $user, $password, $dbName, $failFunction, $flags ); - } - - /** - * Usually aborts on failure - * If the failFunction is set to a non-zero integer, returns success - */ - function open( $server, $user, $password, $dbName ) { - global $wguname, $wgAllDBsAreLocalhost; - wfProfileIn( __METHOD__ ); - - # Test for missing mysql.so - # First try to load it - if (!@extension_loaded('mysql')) { - @dl('mysql.so'); - } - - # Fail now - # Otherwise we get a suppressed fatal error, which is very hard to track down - if ( !function_exists( 'mysql_connect' ) ) { - throw new DBConnectionError( $this, "MySQL functions missing, have you compiled PHP with the --with-mysql option?\n" ); - } - - # Debugging hack -- fake cluster - if ( $wgAllDBsAreLocalhost ) { - $realServer = 'localhost'; - } else { - $realServer = $server; - } - $this->close(); - $this->mServer = $server; - $this->mUser = $user; - $this->mPassword = $password; - $this->mDBname = $dbName; - - $success = false; - - wfProfileIn("dbconnect-$server"); - - # Try to connect up to three times - # The kernel's default SYN retransmission period is far too slow for us, - # so we use a short timeout plus a manual retry. - $this->mConn = false; - $max = 3; - $this->installErrorHandler(); - for ( $i = 0; $i < $max && !$this->mConn; $i++ ) { - if ( $i > 1 ) { - usleep( 1000 ); - } - if ( $this->mFlags & DBO_PERSISTENT ) { - $this->mConn = mysql_pconnect( $realServer, $user, $password ); - } else { - # Create a new connection... - $this->mConn = mysql_connect( $realServer, $user, $password, true ); - } - if ($this->mConn === false) { - #$iplus = $i + 1; - #wfLogDBError("Connect loop error $iplus of $max ($server): " . mysql_errno() . " - " . mysql_error()."\n"); - } - } - $phpError = $this->restoreErrorHandler(); - - wfProfileOut("dbconnect-$server"); - - if ( $dbName != '' ) { - if ( $this->mConn !== false ) { - $success = @/**/mysql_select_db( $dbName, $this->mConn ); - if ( !$success ) { - $error = "Error selecting database $dbName on server {$this->mServer} " . - "from client host {$wguname['nodename']}\n"; - wfLogDBError(" Error selecting database $dbName on server {$this->mServer} \n"); - wfDebug( $error ); - } - } else { - wfDebug( "DB connection error\n" ); - wfDebug( "Server: $server, User: $user, Password: " . - substr( $password, 0, 3 ) . "..., error: " . mysql_error() . "\n" ); - $success = false; - } - } else { - # Delay USE query - $success = (bool)$this->mConn; - } - - if ( $success ) { - $version = $this->getServerVersion(); - if ( version_compare( $version, '4.1' ) >= 0 ) { - // Tell the server we're communicating with it in UTF-8. - // This may engage various charset conversions. - global $wgDBmysql5; - if( $wgDBmysql5 ) { - $this->query( 'SET NAMES utf8', __METHOD__ ); - } - // Turn off strict mode - $this->query( "SET sql_mode = ''", __METHOD__ ); - } - - // Turn off strict mode if it is on - } else { - $this->reportConnectionError( $phpError ); - } - - $this->mOpened = $success; - wfProfileOut( __METHOD__ ); - return $success; - } - /**@}}*/ - - protected function installErrorHandler() { - $this->mPHPError = false; - set_error_handler( array( $this, 'connectionErrorHandler' ) ); - } - - protected function restoreErrorHandler() { - restore_error_handler(); - return $this->mPHPError; - } - - protected function connectionErrorHandler( $errno, $errstr ) { - $this->mPHPError = $errstr; - } - - /** - * Closes a database connection. - * if it is open : commits any open transactions - * - * @return bool operation success. true if already closed. - */ - function close() - { - $this->mOpened = false; - if ( $this->mConn ) { - if ( $this->trxLevel() ) { - $this->immediateCommit(); - } - return mysql_close( $this->mConn ); - } else { - return true; - } - } - - /** - * @param string $error fallback error message, used if none is given by MySQL - */ - function reportConnectionError( $error = 'Unknown error' ) { - $myError = $this->lastError(); - if ( $myError ) { - $error = $myError; - } - - if ( $this->mFailFunction ) { - # Legacy error handling method - if ( !is_int( $this->mFailFunction ) ) { - $ff = $this->mFailFunction; - $ff( $this, $error ); - } - } else { - # New method - wfLogDBError( "Connection error: $error\n" ); - throw new DBConnectionError( $this, $error ); - } - } - - /** - * Usually aborts on failure. If errors are explicitly ignored, returns success. - * - * @param $sql String: SQL query - * @param $fname String: Name of the calling function, for profiling/SHOW PROCESSLIST - * comment (you can use __METHOD__ or add some extra info) - * @param $tempIgnore Bool: Whether to avoid throwing an exception on errors... - * maybe best to catch the exception instead? - * @return true for a successful write query, ResultWrapper object for a successful read query, - * or false on failure if $tempIgnore set - * @throws DBQueryError Thrown when the database returns an error of any kind - */ - public function query( $sql, $fname = '', $tempIgnore = false ) { - global $wgProfiler; - - $isMaster = !is_null( $this->getLBInfo( 'master' ) ); - if ( isset( $wgProfiler ) ) { - # generalizeSQL will probably cut down the query to reasonable - # logging size most of the time. The substr is really just a sanity check. - - # Who's been wasting my precious column space? -- TS - #$profName = 'query: ' . $fname . ' ' . substr( Database::generalizeSQL( $sql ), 0, 255 ); - - if ( $isMaster ) { - $queryProf = 'query-m: ' . substr( Database::generalizeSQL( $sql ), 0, 255 ); - $totalProf = 'Database::query-master'; - } else { - $queryProf = 'query: ' . substr( Database::generalizeSQL( $sql ), 0, 255 ); - $totalProf = 'Database::query'; - } - wfProfileIn( $totalProf ); - wfProfileIn( $queryProf ); - } - - $this->mLastQuery = $sql; - - # Add a comment for easy SHOW PROCESSLIST interpretation - #if ( $fname ) { - global $wgUser; - if ( is_object( $wgUser ) && !($wgUser instanceof StubObject) ) { - $userName = $wgUser->getName(); - if ( mb_strlen( $userName ) > 15 ) { - $userName = mb_substr( $userName, 0, 15 ) . '...'; - } - $userName = str_replace( '/', '', $userName ); - } else { - $userName = ''; - } - $commentedSql = preg_replace('/\s/', " /* $fname $userName */ ", $sql, 1); - #} else { - # $commentedSql = $sql; - #} - - # If DBO_TRX is set, start a transaction - if ( ( $this->mFlags & DBO_TRX ) && !$this->trxLevel() && - $sql != 'BEGIN' && $sql != 'COMMIT' && $sql != 'ROLLBACK') { - // avoid establishing transactions for SHOW and SET statements too - - // that would delay transaction initializations to once connection - // is really used by application - $sqlstart = substr($sql,0,10); // very much worth it, benchmark certified(tm) - if (strpos($sqlstart,"SHOW ")!==0 and strpos($sqlstart,"SET ")!==0) - $this->begin(); - } - - if ( $this->debug() ) { - $sqlx = substr( $commentedSql, 0, 500 ); - $sqlx = strtr( $sqlx, "\t\n", ' ' ); - if ( $isMaster ) { - wfDebug( "SQL-master: $sqlx\n" ); - } else { - wfDebug( "SQL: $sqlx\n" ); - } - } - - # Do the query and handle errors - $ret = $this->doQuery( $commentedSql ); - - # Try reconnecting if the connection was lost - if ( false === $ret && ( $this->lastErrno() == 2013 || $this->lastErrno() == 2006 ) ) { - # Transaction is gone, like it or not - $this->mTrxLevel = 0; - wfDebug( "Connection lost, reconnecting...\n" ); - if ( $this->ping() ) { - wfDebug( "Reconnected\n" ); - $sqlx = substr( $commentedSql, 0, 500 ); - $sqlx = strtr( $sqlx, "\t\n", ' ' ); - global $wgRequestTime; - $elapsed = round( microtime(true) - $wgRequestTime, 3 ); - wfLogDBError( "Connection lost and reconnected after {$elapsed}s, query: $sqlx\n" ); - $ret = $this->doQuery( $commentedSql ); - } else { - wfDebug( "Failed\n" ); - } - } - - if ( false === $ret ) { - $this->reportQueryError( $this->lastError(), $this->lastErrno(), $sql, $fname, $tempIgnore ); - } - - if ( isset( $wgProfiler ) ) { - wfProfileOut( $queryProf ); - wfProfileOut( $totalProf ); - } - return $this->resultObject( $ret ); - } - - /** - * The DBMS-dependent part of query() - * @param $sql String: SQL query. - * @return Result object to feed to fetchObject, fetchRow, ...; or false on failure - * @access private - */ - /*private*/ function doQuery( $sql ) { - if( $this->bufferResults() ) { - $ret = mysql_query( $sql, $this->mConn ); - } else { - $ret = mysql_unbuffered_query( $sql, $this->mConn ); - } - return $ret; - } - - /** - * @param $error - * @param $errno - * @param $sql - * @param string $fname - * @param bool $tempIgnore - */ - function reportQueryError( $error, $errno, $sql, $fname, $tempIgnore = false ) { - global $wgCommandLineMode; - # Ignore errors during error handling to avoid infinite recursion - $ignore = $this->ignoreErrors( true ); - ++$this->mErrorCount; - - if( $ignore || $tempIgnore ) { - wfDebug("SQL ERROR (ignored): $error\n"); - $this->ignoreErrors( $ignore ); - } else { - $sql1line = str_replace( "\n", "\\n", $sql ); - wfLogDBError("$fname\t{$this->mServer}\t$errno\t$error\t$sql1line\n"); - wfDebug("SQL ERROR: " . $error . "\n"); - throw new DBQueryError( $this, $error, $errno, $sql, $fname ); - } - } - - - /** - * Intended to be compatible with the PEAR::DB wrapper functions. - * http://pear.php.net/manual/en/package.database.db.intro-execute.php - * - * ? = scalar value, quoted as necessary - * ! = raw SQL bit (a function for instance) - * & = filename; reads the file and inserts as a blob - * (we don't use this though...) - */ - function prepare( $sql, $func = 'Database::prepare' ) { - /* MySQL doesn't support prepared statements (yet), so just - pack up the query for reference. We'll manually replace - the bits later. */ - return array( 'query' => $sql, 'func' => $func ); - } - - function freePrepared( $prepared ) { - /* No-op for MySQL */ - } - - /** - * Execute a prepared query with the various arguments - * @param string $prepared the prepared sql - * @param mixed $args Either an array here, or put scalars as varargs - */ - function execute( $prepared, $args = null ) { - if( !is_array( $args ) ) { - # Pull the var args - $args = func_get_args(); - array_shift( $args ); - } - $sql = $this->fillPrepared( $prepared['query'], $args ); - return $this->query( $sql, $prepared['func'] ); - } - - /** - * Prepare & execute an SQL statement, quoting and inserting arguments - * in the appropriate places. - * @param string $query - * @param string $args ... - */ - function safeQuery( $query, $args = null ) { - $prepared = $this->prepare( $query, 'Database::safeQuery' ); - if( !is_array( $args ) ) { - # Pull the var args - $args = func_get_args(); - array_shift( $args ); - } - $retval = $this->execute( $prepared, $args ); - $this->freePrepared( $prepared ); - return $retval; - } - - /** - * For faking prepared SQL statements on DBs that don't support - * it directly. - * @param string $preparedSql - a 'preparable' SQL statement - * @param array $args - array of arguments to fill it with - * @return string executable SQL - */ - function fillPrepared( $preparedQuery, $args ) { - reset( $args ); - $this->preparedArgs =& $args; - return preg_replace_callback( '/(\\\\[?!&]|[?!&])/', - array( &$this, 'fillPreparedArg' ), $preparedQuery ); - } - - /** - * preg_callback func for fillPrepared() - * The arguments should be in $this->preparedArgs and must not be touched - * while we're doing this. - * - * @param array $matches - * @return string - * @private - */ - function fillPreparedArg( $matches ) { - switch( $matches[1] ) { - case '\\?': return '?'; - case '\\!': return '!'; - case '\\&': return '&'; - } - list( /* $n */ , $arg ) = each( $this->preparedArgs ); - switch( $matches[1] ) { - case '?': return $this->addQuotes( $arg ); - case '!': return $arg; - case '&': - # return $this->addQuotes( file_get_contents( $arg ) ); - throw new DBUnexpectedError( $this, '& mode is not implemented. If it\'s really needed, uncomment the line above.' ); - default: - throw new DBUnexpectedError( $this, 'Received invalid match. This should never happen!' ); - } - } - - /**#@+ - * @param mixed $res A SQL result - */ - /** - * Free a result object - */ - function freeResult( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - if ( !@/**/mysql_free_result( $res ) ) { - throw new DBUnexpectedError( $this, "Unable to free MySQL result" ); - } - } - - /** - * Fetch the next row from the given result object, in object form. - * Fields can be retrieved with $row->fieldname, with fields acting like - * member variables. - * - * @param $res SQL result object as returned from Database::query(), etc. - * @return MySQL row object - * @throws DBUnexpectedError Thrown if the database returns an error - */ - function fetchObject( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @/**/$row = mysql_fetch_object( $res ); - if( $this->lastErrno() ) { - throw new DBUnexpectedError( $this, 'Error in fetchObject(): ' . htmlspecialchars( $this->lastError() ) ); - } - return $row; - } - - /** - * Fetch the next row from the given result object, in associative array - * form. Fields are retrieved with $row['fieldname']. - * - * @param $res SQL result object as returned from Database::query(), etc. - * @return MySQL row object - * @throws DBUnexpectedError Thrown if the database returns an error - */ - function fetchRow( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @/**/$row = mysql_fetch_array( $res ); - if ( $this->lastErrno() ) { - throw new DBUnexpectedError( $this, 'Error in fetchRow(): ' . htmlspecialchars( $this->lastError() ) ); - } - return $row; - } - - /** - * Get the number of rows in a result object - */ - function numRows( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @/**/$n = mysql_num_rows( $res ); - if( $this->lastErrno() ) { - throw new DBUnexpectedError( $this, 'Error in numRows(): ' . htmlspecialchars( $this->lastError() ) ); - } - return $n; - } - - /** - * Get the number of fields in a result object - * See documentation for mysql_num_fields() - */ - function numFields( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mysql_num_fields( $res ); - } - - /** - * Get a field name in a result object - * See documentation for mysql_field_name(): - * http://www.php.net/mysql_field_name - */ - function fieldName( $res, $n ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mysql_field_name( $res, $n ); - } - - /** - * Get the inserted value of an auto-increment row - * - * The value inserted should be fetched from nextSequenceValue() - * - * Example: - * $id = $dbw->nextSequenceValue('page_page_id_seq'); - * $dbw->insert('page',array('page_id' => $id)); - * $id = $dbw->insertId(); - */ - function insertId() { return mysql_insert_id( $this->mConn ); } - - /** - * Change the position of the cursor in a result object - * See mysql_data_seek() - */ - function dataSeek( $res, $row ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mysql_data_seek( $res, $row ); - } - - /** - * Get the last error number - * See mysql_errno() - */ - function lastErrno() { - if ( $this->mConn ) { - return mysql_errno( $this->mConn ); - } else { - return mysql_errno(); - } - } - - /** - * Get a description of the last error - * See mysql_error() for more details - */ - function lastError() { - if ( $this->mConn ) { - # Even if it's non-zero, it can still be invalid - wfSuppressWarnings(); - $error = mysql_error( $this->mConn ); - if ( !$error ) { - $error = mysql_error(); - } - wfRestoreWarnings(); - } else { - $error = mysql_error(); - } - if( $error ) { - $error .= ' (' . $this->mServer . ')'; - } - return $error; - } - /** - * Get the number of rows affected by the last write query - * See mysql_affected_rows() for more details - */ - function affectedRows() { return mysql_affected_rows( $this->mConn ); } - /**#@-*/ // end of template : @param $result - - /** - * Simple UPDATE wrapper - * Usually aborts on failure - * If errors are explicitly ignored, returns success - * - * This function exists for historical reasons, Database::update() has a more standard - * calling convention and feature set - */ - function set( $table, $var, $value, $cond, $fname = 'Database::set' ) - { - $table = $this->tableName( $table ); - $sql = "UPDATE $table SET $var = '" . - $this->strencode( $value ) . "' WHERE ($cond)"; - return (bool)$this->query( $sql, $fname ); - } - - /** - * Simple SELECT wrapper, returns a single field, input must be encoded - * Usually aborts on failure - * If errors are explicitly ignored, returns FALSE on failure - */ - function selectField( $table, $var, $cond='', $fname = 'Database::selectField', $options = array() ) { - if ( !is_array( $options ) ) { - $options = array( $options ); - } - $options['LIMIT'] = 1; - - $res = $this->select( $table, $var, $cond, $fname, $options ); - if ( $res === false || !$this->numRows( $res ) ) { - return false; - } - $row = $this->fetchRow( $res ); - if ( $row !== false ) { - $this->freeResult( $res ); - return $row[0]; - } else { - return false; - } - } - - /** - * Returns an optional USE INDEX clause to go after the table, and a - * string to go at the end of the query - * - * @private - * - * @param array $options an associative array of options to be turned into - * an SQL query, valid keys are listed in the function. - * @return array - */ - function makeSelectOptions( $options ) { - $preLimitTail = $postLimitTail = ''; - $startOpts = ''; - - $noKeyOptions = array(); - foreach ( $options as $key => $option ) { - if ( is_numeric( $key ) ) { - $noKeyOptions[$option] = true; - } - } - - if ( isset( $options['GROUP BY'] ) ) $preLimitTail .= " GROUP BY {$options['GROUP BY']}"; - if ( isset( $options['HAVING'] ) ) $preLimitTail .= " HAVING {$options['HAVING']}"; - if ( isset( $options['ORDER BY'] ) ) $preLimitTail .= " ORDER BY {$options['ORDER BY']}"; - - //if (isset($options['LIMIT'])) { - // $tailOpts .= $this->limitResult('', $options['LIMIT'], - // isset($options['OFFSET']) ? $options['OFFSET'] - // : false); - //} - - if ( isset( $noKeyOptions['FOR UPDATE'] ) ) $postLimitTail .= ' FOR UPDATE'; - if ( isset( $noKeyOptions['LOCK IN SHARE MODE'] ) ) $postLimitTail .= ' LOCK IN SHARE MODE'; - if ( isset( $noKeyOptions['DISTINCT'] ) || isset( $noKeyOptions['DISTINCTROW'] ) ) $startOpts .= 'DISTINCT'; - - # Various MySQL extensions - if ( isset( $noKeyOptions['STRAIGHT_JOIN'] ) ) $startOpts .= ' /*! STRAIGHT_JOIN */'; - if ( isset( $noKeyOptions['HIGH_PRIORITY'] ) ) $startOpts .= ' HIGH_PRIORITY'; - if ( isset( $noKeyOptions['SQL_BIG_RESULT'] ) ) $startOpts .= ' SQL_BIG_RESULT'; - if ( isset( $noKeyOptions['SQL_BUFFER_RESULT'] ) ) $startOpts .= ' SQL_BUFFER_RESULT'; - if ( isset( $noKeyOptions['SQL_SMALL_RESULT'] ) ) $startOpts .= ' SQL_SMALL_RESULT'; - if ( isset( $noKeyOptions['SQL_CALC_FOUND_ROWS'] ) ) $startOpts .= ' SQL_CALC_FOUND_ROWS'; - if ( isset( $noKeyOptions['SQL_CACHE'] ) ) $startOpts .= ' SQL_CACHE'; - if ( isset( $noKeyOptions['SQL_NO_CACHE'] ) ) $startOpts .= ' SQL_NO_CACHE'; - - if ( isset( $options['USE INDEX'] ) && ! is_array( $options['USE INDEX'] ) ) { - $useIndex = $this->useIndexClause( $options['USE INDEX'] ); - } else { - $useIndex = ''; - } - - return array( $startOpts, $useIndex, $preLimitTail, $postLimitTail ); - } - - /** - * SELECT wrapper - * - * @param mixed $table Array or string, table name(s) (prefix auto-added) - * @param mixed $vars Array or string, field name(s) to be retrieved - * @param mixed $conds Array or string, condition(s) for WHERE - * @param string $fname Calling function name (use __METHOD__) for logs/profiling - * @param array $options Associative array of options (e.g. array('GROUP BY' => 'page_title')), - * see Database::makeSelectOptions code for list of supported stuff - * @param array $join_conds Associative array of table join conditions (optional) - * (e.g. array( 'page' => array('LEFT JOIN','page_latest=rev_id') ) - * @return mixed Database result resource (feed to Database::fetchObject or whatever), or false on failure - */ - function select( $table, $vars, $conds='', $fname = 'Database::select', $options = array(), $join_conds = array() ) - { - $sql = $this->selectSQLText( $table, $vars, $conds, $fname, $options, $join_conds ); - return $this->query( $sql, $fname ); - } - - /** - * SELECT wrapper - * - * @param mixed $table Array or string, table name(s) (prefix auto-added) - * @param mixed $vars Array or string, field name(s) to be retrieved - * @param mixed $conds Array or string, condition(s) for WHERE - * @param string $fname Calling function name (use __METHOD__) for logs/profiling - * @param array $options Associative array of options (e.g. array('GROUP BY' => 'page_title')), - * see Database::makeSelectOptions code for list of supported stuff - * @param array $join_conds Associative array of table join conditions (optional) - * (e.g. array( 'page' => array('LEFT JOIN','page_latest=rev_id') ) - * @return string, the SQL text - */ - function selectSQLText( $table, $vars, $conds='', $fname = 'Database::select', $options = array(), $join_conds = array() ) { - if( is_array( $vars ) ) { - $vars = implode( ',', $vars ); - } - if( !is_array( $options ) ) { - $options = array( $options ); - } - if( is_array( $table ) ) { - if ( !empty($join_conds) || ( isset( $options['USE INDEX'] ) && is_array( @$options['USE INDEX'] ) ) ) - $from = ' FROM ' . $this->tableNamesWithUseIndexOrJOIN( $table, @$options['USE INDEX'], $join_conds ); - else - $from = ' FROM ' . implode( ',', array_map( array( &$this, 'tableName' ), $table ) ); - } elseif ($table!='') { - if ($table{0}==' ') { - $from = ' FROM ' . $table; - } else { - $from = ' FROM ' . $this->tableName( $table ); - } - } else { - $from = ''; - } - - list( $startOpts, $useIndex, $preLimitTail, $postLimitTail ) = $this->makeSelectOptions( $options ); - - if( !empty( $conds ) ) { - if ( is_array( $conds ) ) { - $conds = $this->makeList( $conds, LIST_AND ); - } - $sql = "SELECT $startOpts $vars $from $useIndex WHERE $conds $preLimitTail"; - } else { - $sql = "SELECT $startOpts $vars $from $useIndex $preLimitTail"; - } - - if (isset($options['LIMIT'])) - $sql = $this->limitResult($sql, $options['LIMIT'], - isset($options['OFFSET']) ? $options['OFFSET'] : false); - $sql = "$sql $postLimitTail"; - - if (isset($options['EXPLAIN'])) { - $sql = 'EXPLAIN ' . $sql; - } - return $sql; - } - - /** - * Single row SELECT wrapper - * Aborts or returns FALSE on error - * - * $vars: the selected variables - * $conds: a condition map, terms are ANDed together. - * Items with numeric keys are taken to be literal conditions - * Takes an array of selected variables, and a condition map, which is ANDed - * e.g: selectRow( "page", array( "page_id" ), array( "page_namespace" => - * NS_MAIN, "page_title" => "Astronomy" ) ) would return an object where - * $obj- >page_id is the ID of the Astronomy article - * - * @todo migrate documentation to phpdocumentor format - */ - function selectRow( $table, $vars, $conds, $fname = 'Database::selectRow', $options = array(), $join_conds = array() ) { - $options['LIMIT'] = 1; - $res = $this->select( $table, $vars, $conds, $fname, $options, $join_conds ); - if ( $res === false ) - return false; - if ( !$this->numRows($res) ) { - $this->freeResult($res); - return false; - } - $obj = $this->fetchObject( $res ); - $this->freeResult( $res ); - return $obj; - - } - - /** - * Estimate rows in dataset - * Returns estimated count, based on EXPLAIN output - * Takes same arguments as Database::select() - */ - - function estimateRowCount( $table, $vars='*', $conds='', $fname = 'Database::estimateRowCount', $options = array() ) { - $options['EXPLAIN']=true; - $res = $this->select ($table, $vars, $conds, $fname, $options ); - if ( $res === false ) - return false; - if (!$this->numRows($res)) { - $this->freeResult($res); - return 0; - } - - $rows=1; - - while( $plan = $this->fetchObject( $res ) ) { - $rows *= ($plan->rows > 0)?$plan->rows:1; // avoid resetting to zero - } - - $this->freeResult($res); - return $rows; - } - - - /** - * Removes most variables from an SQL query and replaces them with X or N for numbers. - * It's only slightly flawed. Don't use for anything important. - * - * @param string $sql A SQL Query - * @static - */ - static function generalizeSQL( $sql ) { - # This does the same as the regexp below would do, but in such a way - # as to avoid crashing php on some large strings. - # $sql = preg_replace ( "/'([^\\\\']|\\\\.)*'|\"([^\\\\\"]|\\\\.)*\"/", "'X'", $sql); - - $sql = str_replace ( "\\\\", '', $sql); - $sql = str_replace ( "\\'", '', $sql); - $sql = str_replace ( "\\\"", '', $sql); - $sql = preg_replace ("/'.*'/s", "'X'", $sql); - $sql = preg_replace ('/".*"/s', "'X'", $sql); - - # All newlines, tabs, etc replaced by single space - $sql = preg_replace ( '/\s+/', ' ', $sql); - - # All numbers => N - $sql = preg_replace ('/-?[0-9]+/s', 'N', $sql); - - return $sql; - } - - /** - * Determines whether a field exists in a table - * Usually aborts on failure - * If errors are explicitly ignored, returns NULL on failure - */ - function fieldExists( $table, $field, $fname = 'Database::fieldExists' ) { - $table = $this->tableName( $table ); - $res = $this->query( 'DESCRIBE '.$table, $fname ); - if ( !$res ) { - return NULL; - } - - $found = false; - - while ( $row = $this->fetchObject( $res ) ) { - if ( $row->Field == $field ) { - $found = true; - break; - } - } - return $found; - } - - /** - * Determines whether an index exists - * Usually aborts on failure - * If errors are explicitly ignored, returns NULL on failure - */ - function indexExists( $table, $index, $fname = 'Database::indexExists' ) { - $info = $this->indexInfo( $table, $index, $fname ); - if ( is_null( $info ) ) { - return NULL; - } else { - return $info !== false; - } - } - - - /** - * Get information about an index into an object - * Returns false if the index does not exist - */ - function indexInfo( $table, $index, $fname = 'Database::indexInfo' ) { - # SHOW INDEX works in MySQL 3.23.58, but SHOW INDEXES does not. - # SHOW INDEX should work for 3.x and up: - # http://dev.mysql.com/doc/mysql/en/SHOW_INDEX.html - $table = $this->tableName( $table ); - $sql = 'SHOW INDEX FROM '.$table; - $res = $this->query( $sql, $fname ); - if ( !$res ) { - return NULL; - } - - $result = array(); - while ( $row = $this->fetchObject( $res ) ) { - if ( $row->Key_name == $index ) { - $result[] = $row; - } - } - $this->freeResult($res); - - return empty($result) ? false : $result; - } - - /** - * Query whether a given table exists - */ - function tableExists( $table ) { - $table = $this->tableName( $table ); - $old = $this->ignoreErrors( true ); - $res = $this->query( "SELECT 1 FROM $table LIMIT 1" ); - $this->ignoreErrors( $old ); - if( $res ) { - $this->freeResult( $res ); - return true; - } else { - return false; - } - } - - /** - * mysql_fetch_field() wrapper - * Returns false if the field doesn't exist - * - * @param $table - * @param $field - */ - function fieldInfo( $table, $field ) { - $table = $this->tableName( $table ); - $res = $this->query( "SELECT * FROM $table LIMIT 1" ); - $n = mysql_num_fields( $res->result ); - for( $i = 0; $i < $n; $i++ ) { - $meta = mysql_fetch_field( $res->result, $i ); - if( $field == $meta->name ) { - return new MySQLField($meta); - } - } - return false; - } - - /** - * mysql_field_type() wrapper - */ - function fieldType( $res, $index ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mysql_field_type( $res, $index ); - } - - /** - * Determines if a given index is unique - */ - function indexUnique( $table, $index ) { - $indexInfo = $this->indexInfo( $table, $index ); - if ( !$indexInfo ) { - return NULL; - } - return !$indexInfo[0]->Non_unique; - } - - /** - * INSERT wrapper, inserts an array into a table - * - * $a may be a single associative array, or an array of these with numeric keys, for - * multi-row insert. - * - * Usually aborts on failure - * If errors are explicitly ignored, returns success - */ - function insert( $table, $a, $fname = 'Database::insert', $options = array() ) { - # No rows to insert, easy just return now - if ( !count( $a ) ) { - return true; - } - - $table = $this->tableName( $table ); - if ( !is_array( $options ) ) { - $options = array( $options ); - } - if ( isset( $a[0] ) && is_array( $a[0] ) ) { - $multi = true; - $keys = array_keys( $a[0] ); - } else { - $multi = false; - $keys = array_keys( $a ); - } - - $sql = 'INSERT ' . implode( ' ', $options ) . - " INTO $table (" . implode( ',', $keys ) . ') VALUES '; - - if ( $multi ) { - $first = true; - foreach ( $a as $row ) { - if ( $first ) { - $first = false; - } else { - $sql .= ','; - } - $sql .= '(' . $this->makeList( $row ) . ')'; - } - } else { - $sql .= '(' . $this->makeList( $a ) . ')'; - } - return (bool)$this->query( $sql, $fname ); - } - - /** - * Make UPDATE options for the Database::update function - * - * @private - * @param array $options The options passed to Database::update - * @return string - */ - function makeUpdateOptions( $options ) { - if( !is_array( $options ) ) { - $options = array( $options ); - } - $opts = array(); - if ( in_array( 'LOW_PRIORITY', $options ) ) - $opts[] = $this->lowPriorityOption(); - if ( in_array( 'IGNORE', $options ) ) - $opts[] = 'IGNORE'; - return implode(' ', $opts); - } - - /** - * UPDATE wrapper, takes a condition array and a SET array - * - * @param string $table The table to UPDATE - * @param array $values An array of values to SET - * @param array $conds An array of conditions (WHERE). Use '*' to update all rows. - * @param string $fname The Class::Function calling this function - * (for the log) - * @param array $options An array of UPDATE options, can be one or - * more of IGNORE, LOW_PRIORITY - * @return bool - */ - function update( $table, $values, $conds, $fname = 'Database::update', $options = array() ) { - $table = $this->tableName( $table ); - $opts = $this->makeUpdateOptions( $options ); - $sql = "UPDATE $opts $table SET " . $this->makeList( $values, LIST_SET ); - if ( $conds != '*' ) { - $sql .= " WHERE " . $this->makeList( $conds, LIST_AND ); - } - return $this->query( $sql, $fname ); - } - - /** - * Makes an encoded list of strings from an array - * $mode: - * LIST_COMMA - comma separated, no field names - * LIST_AND - ANDed WHERE clause (without the WHERE) - * LIST_OR - ORed WHERE clause (without the WHERE) - * LIST_SET - comma separated with field names, like a SET clause - * LIST_NAMES - comma separated field names - */ - function makeList( $a, $mode = LIST_COMMA ) { - if ( !is_array( $a ) ) { - throw new DBUnexpectedError( $this, 'Database::makeList called with incorrect parameters' ); - } - - $first = true; - $list = ''; - foreach ( $a as $field => $value ) { - if ( !$first ) { - if ( $mode == LIST_AND ) { - $list .= ' AND '; - } elseif($mode == LIST_OR) { - $list .= ' OR '; - } else { - $list .= ','; - } - } else { - $first = false; - } - if ( ($mode == LIST_AND || $mode == LIST_OR) && is_numeric( $field ) ) { - $list .= "($value)"; - } elseif ( ($mode == LIST_SET) && is_numeric( $field ) ) { - $list .= "$value"; - } elseif ( ($mode == LIST_AND || $mode == LIST_OR) && is_array($value) ) { - if( count( $value ) == 0 ) { - throw new MWException( __METHOD__.': empty input' ); - } elseif( count( $value ) == 1 ) { - // Special-case single values, as IN isn't terribly efficient - // Don't necessarily assume the single key is 0; we don't - // enforce linear numeric ordering on other arrays here. - $value = array_values( $value ); - $list .= $field." = ".$this->addQuotes( $value[0] ); - } else { - $list .= $field." IN (".$this->makeList($value).") "; - } - } elseif( is_null($value) ) { - if ( $mode == LIST_AND || $mode == LIST_OR ) { - $list .= "$field IS "; - } elseif ( $mode == LIST_SET ) { - $list .= "$field = "; - } - $list .= 'NULL'; - } else { - if ( $mode == LIST_AND || $mode == LIST_OR || $mode == LIST_SET ) { - $list .= "$field = "; - } - $list .= $mode == LIST_NAMES ? $value : $this->addQuotes( $value ); - } - } - return $list; - } - - /** - * Change the current database - */ - function selectDB( $db ) { - $this->mDBname = $db; - return mysql_select_db( $db, $this->mConn ); - } - - /** - * Get the current DB name - */ - function getDBname() { - return $this->mDBname; - } - - /** - * Get the server hostname or IP address - */ - function getServer() { - return $this->mServer; - } - - /** - * Format a table name ready for use in constructing an SQL query - * - * This does two important things: it quotes the table names to clean them up, - * and it adds a table prefix if only given a table name with no quotes. - * - * All functions of this object which require a table name call this function - * themselves. Pass the canonical name to such functions. This is only needed - * when calling query() directly. - * - * @param string $name database table name - * @return string full database name - */ - function tableName( $name ) { - global $wgSharedDB, $wgSharedPrefix, $wgSharedTables; - # Skip the entire process when we have a string quoted on both ends. - # Note that we check the end so that we will still quote any use of - # use of `database`.table. But won't break things if someone wants - # to query a database table with a dot in the name. - if ( $name[0] == '`' && substr( $name, -1, 1 ) == '`' ) return $name; - - # Lets test for any bits of text that should never show up in a table - # name. Basically anything like JOIN or ON which are actually part of - # SQL queries, but may end up inside of the table value to combine - # sql. Such as how the API is doing. - # Note that we use a whitespace test rather than a \b test to avoid - # any remote case where a word like on may be inside of a table name - # surrounded by symbols which may be considered word breaks. - if( preg_match( '/(^|\s)(DISTINCT|JOIN|ON|AS)(\s|$)/i', $name ) !== 0 ) return $name; - - # Split database and table into proper variables. - # We reverse the explode so that database.table and table both output - # the correct table. - $dbDetails = array_reverse( explode( '.', $name, 2 ) ); - if( isset( $dbDetails[1] ) ) @list( $table, $database ) = $dbDetails; - else @list( $table ) = $dbDetails; - $prefix = $this->mTablePrefix; # Default prefix - - # A database name has been specified in input. Quote the table name - # because we don't want any prefixes added. - if( isset($database) ) $table = ( $table[0] == '`' ? $table : "`{$table}`" ); - - # Note that we use the long format because php will complain in in_array if - # the input is not an array, and will complain in is_array if it is not set. - if( !isset( $database ) # Don't use shared database if pre selected. - && isset( $wgSharedDB ) # We have a shared database - && $table[0] != '`' # Paranoia check to prevent shared tables listing '`table`' - && isset( $wgSharedTables ) - && is_array( $wgSharedTables ) - && in_array( $table, $wgSharedTables ) ) { # A shared table is selected - $database = $wgSharedDB; - $prefix = isset( $wgSharedprefix ) ? $wgSharedprefix : $prefix; - } - - # Quote the $database and $table and apply the prefix if not quoted. - if( isset($database) ) $database = ( $database[0] == '`' ? $database : "`{$database}`" ); - $table = ( $table[0] == '`' ? $table : "`{$prefix}{$table}`" ); - - # Merge our database and table into our final table name. - $tableName = ( isset($database) ? "{$database}.{$table}" : "{$table}" ); - - # We're finished, return. - return $tableName; - } - - /** - * Fetch a number of table names into an array - * This is handy when you need to construct SQL for joins - * - * Example: - * extract($dbr->tableNames('user','watchlist')); - * $sql = "SELECT wl_namespace,wl_title FROM $watchlist,$user - * WHERE wl_user=user_id AND wl_user=$nameWithQuotes"; - */ - public function tableNames() { - $inArray = func_get_args(); - $retVal = array(); - foreach ( $inArray as $name ) { - $retVal[$name] = $this->tableName( $name ); - } - return $retVal; - } - - /** - * Fetch a number of table names into an zero-indexed numerical array - * This is handy when you need to construct SQL for joins - * - * Example: - * list( $user, $watchlist ) = $dbr->tableNamesN('user','watchlist'); - * $sql = "SELECT wl_namespace,wl_title FROM $watchlist,$user - * WHERE wl_user=user_id AND wl_user=$nameWithQuotes"; - */ - public function tableNamesN() { - $inArray = func_get_args(); - $retVal = array(); - foreach ( $inArray as $name ) { - $retVal[] = $this->tableName( $name ); - } - return $retVal; - } - - /** - * @private - */ - function tableNamesWithUseIndexOrJOIN( $tables, $use_index = array(), $join_conds = array() ) { - $ret = array(); - $retJOIN = array(); - $use_index_safe = is_array($use_index) ? $use_index : array(); - $join_conds_safe = is_array($join_conds) ? $join_conds : array(); - foreach ( $tables as $table ) { - // Is there a JOIN and INDEX clause for this table? - if ( isset($join_conds_safe[$table]) && isset($use_index_safe[$table]) ) { - $tableClause = $join_conds_safe[$table][0] . ' ' . $this->tableName( $table ); - $tableClause .= ' ' . $this->useIndexClause( implode( ',', (array)$use_index_safe[$table] ) ); - $tableClause .= ' ON (' . $this->makeList((array)$join_conds_safe[$table][1], LIST_AND) . ')'; - $retJOIN[] = $tableClause; - // Is there an INDEX clause? - } else if ( isset($use_index_safe[$table]) ) { - $tableClause = $this->tableName( $table ); - $tableClause .= ' ' . $this->useIndexClause( implode( ',', (array)$use_index_safe[$table] ) ); - $ret[] = $tableClause; - // Is there a JOIN clause? - } else if ( isset($join_conds_safe[$table]) ) { - $tableClause = $join_conds_safe[$table][0] . ' ' . $this->tableName( $table ); - $tableClause .= ' ON (' . $this->makeList((array)$join_conds_safe[$table][1], LIST_AND) . ')'; - $retJOIN[] = $tableClause; - } else { - $tableClause = $this->tableName( $table ); - $ret[] = $tableClause; - } - } - // We can't separate explicit JOIN clauses with ',', use ' ' for those - $straightJoins = !empty($ret) ? implode( ',', $ret ) : ""; - $otherJoins = !empty($retJOIN) ? implode( ' ', $retJOIN ) : ""; - // Compile our final table clause - return implode(' ',array($straightJoins,$otherJoins) ); - } - - /** - * Wrapper for addslashes() - * @param string $s String to be slashed. - * @return string slashed string. - */ - function strencode( $s ) { - return mysql_real_escape_string( $s, $this->mConn ); - } - - /** - * If it's a string, adds quotes and backslashes - * Otherwise returns as-is - */ - function addQuotes( $s ) { - if ( is_null( $s ) ) { - return 'NULL'; - } else { - # This will also quote numeric values. This should be harmless, - # and protects against weird problems that occur when they really - # _are_ strings such as article titles and string->number->string - # conversion is not 1:1. - return "'" . $this->strencode( $s ) . "'"; - } - } - - /** - * Escape string for safe LIKE usage - */ - function escapeLike( $s ) { - $s=$this->strencode( $s ); - $s=str_replace(array('%','_'),array('\%','\_'),$s); - return $s; - } - - /** - * Returns an appropriately quoted sequence value for inserting a new row. - * MySQL has autoincrement fields, so this is just NULL. But the PostgreSQL - * subclass will return an integer, and save the value for insertId() - */ - function nextSequenceValue( $seqName ) { - return NULL; - } - - /** - * USE INDEX clause - * PostgreSQL doesn't have them and returns "" - */ - function useIndexClause( $index ) { - return "FORCE INDEX ($index)"; - } - - /** - * REPLACE query wrapper - * PostgreSQL simulates this with a DELETE followed by INSERT - * $row is the row to insert, an associative array - * $uniqueIndexes is an array of indexes. Each element may be either a - * field name or an array of field names - * - * It may be more efficient to leave off unique indexes which are unlikely to collide. - * However if you do this, you run the risk of encountering errors which wouldn't have - * occurred in MySQL - * - * @todo migrate comment to phodocumentor format - */ - function replace( $table, $uniqueIndexes, $rows, $fname = 'Database::replace' ) { - $table = $this->tableName( $table ); - - # Single row case - if ( !is_array( reset( $rows ) ) ) { - $rows = array( $rows ); - } - - $sql = "REPLACE INTO $table (" . implode( ',', array_keys( $rows[0] ) ) .') VALUES '; - $first = true; - foreach ( $rows as $row ) { - if ( $first ) { - $first = false; - } else { - $sql .= ','; - } - $sql .= '(' . $this->makeList( $row ) . ')'; - } - return $this->query( $sql, $fname ); - } - - /** - * DELETE where the condition is a join - * MySQL does this with a multi-table DELETE syntax, PostgreSQL does it with sub-selects - * - * For safety, an empty $conds will not delete everything. If you want to delete all rows where the - * join condition matches, set $conds='*' - * - * DO NOT put the join condition in $conds - * - * @param string $delTable The table to delete from. - * @param string $joinTable The other table. - * @param string $delVar The variable to join on, in the first table. - * @param string $joinVar The variable to join on, in the second table. - * @param array $conds Condition array of field names mapped to variables, ANDed together in the WHERE clause - */ - function deleteJoin( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname = 'Database::deleteJoin' ) { - if ( !$conds ) { - throw new DBUnexpectedError( $this, 'Database::deleteJoin() called with empty $conds' ); - } - - $delTable = $this->tableName( $delTable ); - $joinTable = $this->tableName( $joinTable ); - $sql = "DELETE $delTable FROM $delTable, $joinTable WHERE $delVar=$joinVar "; - if ( $conds != '*' ) { - $sql .= ' AND ' . $this->makeList( $conds, LIST_AND ); - } - - return $this->query( $sql, $fname ); - } - - /** - * Returns the size of a text field, or -1 for "unlimited" - */ - function textFieldSize( $table, $field ) { - $table = $this->tableName( $table ); - $sql = "SHOW COLUMNS FROM $table LIKE \"$field\";"; - $res = $this->query( $sql, 'Database::textFieldSize' ); - $row = $this->fetchObject( $res ); - $this->freeResult( $res ); - - $m = array(); - if ( preg_match( '/\((.*)\)/', $row->Type, $m ) ) { - $size = $m[1]; - } else { - $size = -1; - } - return $size; - } - - /** - * @return string Returns the text of the low priority option if it is supported, or a blank string otherwise - */ - function lowPriorityOption() { - return 'LOW_PRIORITY'; - } - - /** - * DELETE query wrapper - * - * Use $conds == "*" to delete all rows - */ - function delete( $table, $conds, $fname = 'Database::delete' ) { - if ( !$conds ) { - throw new DBUnexpectedError( $this, 'Database::delete() called with no conditions' ); - } - $table = $this->tableName( $table ); - $sql = "DELETE FROM $table"; - if ( $conds != '*' ) { - $sql .= ' WHERE ' . $this->makeList( $conds, LIST_AND ); - } - return $this->query( $sql, $fname ); - } - - /** - * INSERT SELECT wrapper - * $varMap must be an associative array of the form array( 'dest1' => 'source1', ...) - * Source items may be literals rather than field names, but strings should be quoted with Database::addQuotes() - * $conds may be "*" to copy the whole table - * srcTable may be an array of tables. - */ - function insertSelect( $destTable, $srcTable, $varMap, $conds, $fname = 'Database::insertSelect', - $insertOptions = array(), $selectOptions = array() ) - { - $destTable = $this->tableName( $destTable ); - if ( is_array( $insertOptions ) ) { - $insertOptions = implode( ' ', $insertOptions ); - } - if( !is_array( $selectOptions ) ) { - $selectOptions = array( $selectOptions ); - } - list( $startOpts, $useIndex, $tailOpts ) = $this->makeSelectOptions( $selectOptions ); - if( is_array( $srcTable ) ) { - $srcTable = implode( ',', array_map( array( &$this, 'tableName' ), $srcTable ) ); - } else { - $srcTable = $this->tableName( $srcTable ); - } - $sql = "INSERT $insertOptions INTO $destTable (" . implode( ',', array_keys( $varMap ) ) . ')' . - " SELECT $startOpts " . implode( ',', $varMap ) . - " FROM $srcTable $useIndex "; - if ( $conds != '*' ) { - $sql .= ' WHERE ' . $this->makeList( $conds, LIST_AND ); - } - $sql .= " $tailOpts"; - return $this->query( $sql, $fname ); - } - - /** - * Construct a LIMIT query with optional offset - * This is used for query pages - * $sql string SQL query we will append the limit too - * $limit integer the SQL limit - * $offset integer the SQL offset (default false) - */ - function limitResult($sql, $limit, $offset=false) { - if( !is_numeric($limit) ) { - throw new DBUnexpectedError( $this, "Invalid non-numeric limit passed to limitResult()\n" ); - } - return "$sql LIMIT " - . ( (is_numeric($offset) && $offset != 0) ? "{$offset}," : "" ) - . "{$limit} "; - } - function limitResultForUpdate($sql, $num) { - return $this->limitResult($sql, $num, 0); - } - - /** - * Returns an SQL expression for a simple conditional. - * Uses IF on MySQL. - * - * @param string $cond SQL expression which will result in a boolean value - * @param string $trueVal SQL expression to return if true - * @param string $falseVal SQL expression to return if false - * @return string SQL fragment - */ - function conditional( $cond, $trueVal, $falseVal ) { - return " IF($cond, $trueVal, $falseVal) "; - } - - /** - * Returns a comand for str_replace function in SQL query. - * Uses REPLACE() in MySQL - * - * @param string $orig String or column to modify - * @param string $old String or column to seek - * @param string $new String or column to replace with - */ - function strreplace( $orig, $old, $new ) { - return "REPLACE({$orig}, {$old}, {$new})"; - } - - /** - * Determines if the last failure was due to a deadlock - */ - function wasDeadlock() { - return $this->lastErrno() == 1213; - } - - /** - * Perform a deadlock-prone transaction. - * - * This function invokes a callback function to perform a set of write - * queries. If a deadlock occurs during the processing, the transaction - * will be rolled back and the callback function will be called again. - * - * Usage: - * $dbw->deadlockLoop( callback, ... ); - * - * Extra arguments are passed through to the specified callback function. - * - * Returns whatever the callback function returned on its successful, - * iteration, or false on error, for example if the retry limit was - * reached. - */ - function deadlockLoop() { - $myFname = 'Database::deadlockLoop'; - - $this->begin(); - $args = func_get_args(); - $function = array_shift( $args ); - $oldIgnore = $this->ignoreErrors( true ); - $tries = DEADLOCK_TRIES; - if ( is_array( $function ) ) { - $fname = $function[0]; - } else { - $fname = $function; - } - do { - $retVal = call_user_func_array( $function, $args ); - $error = $this->lastError(); - $errno = $this->lastErrno(); - $sql = $this->lastQuery(); - - if ( $errno ) { - if ( $this->wasDeadlock() ) { - # Retry - usleep( mt_rand( DEADLOCK_DELAY_MIN, DEADLOCK_DELAY_MAX ) ); - } else { - $this->reportQueryError( $error, $errno, $sql, $fname ); - } - } - } while( $this->wasDeadlock() && --$tries > 0 ); - $this->ignoreErrors( $oldIgnore ); - if ( $tries <= 0 ) { - $this->query( 'ROLLBACK', $myFname ); - $this->reportQueryError( $error, $errno, $sql, $fname ); - return false; - } else { - $this->query( 'COMMIT', $myFname ); - return $retVal; - } - } - - /** - * Do a SELECT MASTER_POS_WAIT() - * - * @param string $file the binlog file - * @param string $pos the binlog position - * @param integer $timeout the maximum number of seconds to wait for synchronisation - */ - function masterPosWait( MySQLMasterPos $pos, $timeout ) { - $fname = 'Database::masterPosWait'; - wfProfileIn( $fname ); - - # Commit any open transactions - if ( $this->mTrxLevel ) { - $this->immediateCommit(); - } - - if ( !is_null( $this->mFakeSlaveLag ) ) { - $wait = intval( ( $pos->pos - microtime(true) + $this->mFakeSlaveLag ) * 1e6 ); - if ( $wait > $timeout * 1e6 ) { - wfDebug( "Fake slave timed out waiting for $pos ($wait us)\n" ); - wfProfileOut( $fname ); - return -1; - } elseif ( $wait > 0 ) { - wfDebug( "Fake slave waiting $wait us\n" ); - usleep( $wait ); - wfProfileOut( $fname ); - return 1; - } else { - wfDebug( "Fake slave up to date ($wait us)\n" ); - wfProfileOut( $fname ); - return 0; - } - } - - # Call doQuery() directly, to avoid opening a transaction if DBO_TRX is set - $encFile = $this->addQuotes( $pos->file ); - $encPos = intval( $pos->pos ); - $sql = "SELECT MASTER_POS_WAIT($encFile, $encPos, $timeout)"; - $res = $this->doQuery( $sql ); - if ( $res && $row = $this->fetchRow( $res ) ) { - $this->freeResult( $res ); - wfProfileOut( $fname ); - return $row[0]; - } else { - wfProfileOut( $fname ); - return false; - } - } - - /** - * Get the position of the master from SHOW SLAVE STATUS - */ - function getSlavePos() { - if ( !is_null( $this->mFakeSlaveLag ) ) { - $pos = new MySQLMasterPos( 'fake', microtime(true) - $this->mFakeSlaveLag ); - wfDebug( __METHOD__.": fake slave pos = $pos\n" ); - return $pos; - } - $res = $this->query( 'SHOW SLAVE STATUS', 'Database::getSlavePos' ); - $row = $this->fetchObject( $res ); - if ( $row ) { - return new MySQLMasterPos( $row->Master_Log_File, $row->Read_Master_Log_Pos ); - } else { - return false; - } - } - - /** - * Get the position of the master from SHOW MASTER STATUS - */ - function getMasterPos() { - if ( $this->mFakeMaster ) { - return new MySQLMasterPos( 'fake', microtime( true ) ); - } - $res = $this->query( 'SHOW MASTER STATUS', 'Database::getMasterPos' ); - $row = $this->fetchObject( $res ); - if ( $row ) { - return new MySQLMasterPos( $row->File, $row->Position ); - } else { - return false; - } - } - - /** - * Begin a transaction, committing any previously open transaction - */ - function begin( $fname = 'Database::begin' ) { - $this->query( 'BEGIN', $fname ); - $this->mTrxLevel = 1; - } - - /** - * End a transaction - */ - function commit( $fname = 'Database::commit' ) { - $this->query( 'COMMIT', $fname ); - $this->mTrxLevel = 0; - } - - /** - * Rollback a transaction. - * No-op on non-transactional databases. - */ - function rollback( $fname = 'Database::rollback' ) { - $this->query( 'ROLLBACK', $fname, true ); - $this->mTrxLevel = 0; - } - - /** - * Begin a transaction, committing any previously open transaction - * @deprecated use begin() - */ - function immediateBegin( $fname = 'Database::immediateBegin' ) { - $this->begin(); - } - - /** - * Commit transaction, if one is open - * @deprecated use commit() - */ - function immediateCommit( $fname = 'Database::immediateCommit' ) { - $this->commit(); - } - - /** - * Return MW-style timestamp used for MySQL schema - */ - function timestamp( $ts=0 ) { - return wfTimestamp(TS_MW,$ts); - } - - /** - * Local database timestamp format or null - */ - function timestampOrNull( $ts = null ) { - if( is_null( $ts ) ) { - return null; - } else { - return $this->timestamp( $ts ); - } - } - - /** - * @todo document - */ - function resultObject( $result ) { - if( empty( $result ) ) { - return false; - } elseif ( $result instanceof ResultWrapper ) { - return $result; - } elseif ( $result === true ) { - // Successful write query - return $result; - } else { - return new ResultWrapper( $this, $result ); - } - } - - /** - * Return aggregated value alias - */ - function aggregateValue ($valuedata,$valuename='value') { - return $valuename; - } - - /** - * @return string wikitext of a link to the server software's web site - */ - function getSoftwareLink() { - return "[http://www.mysql.com/ MySQL]"; - } - - /** - * @return string Version information from the database - */ - function getServerVersion() { - return mysql_get_server_info( $this->mConn ); - } - - /** - * Ping the server and try to reconnect if it there is no connection - */ - function ping() { - if( !function_exists( 'mysql_ping' ) ) { - wfDebug( "Tried to call mysql_ping but this is ancient PHP version. Faking it!\n" ); - return true; - } - $ping = mysql_ping( $this->mConn ); - if ( $ping ) { - return true; - } - - // Need to reconnect manually in MySQL client 5.0.13+ - if ( version_compare( mysql_get_client_info(), '5.0.13', '>=' ) ) { - mysql_close( $this->mConn ); - $this->mOpened = false; - $this->mConn = false; - $this->open( $this->mServer, $this->mUser, $this->mPassword, $this->mDBname ); - return true; - } - return false; - } - - /** - * Get slave lag. - * At the moment, this will only work if the DB user has the PROCESS privilege - */ - function getLag() { - if ( !is_null( $this->mFakeSlaveLag ) ) { - wfDebug( "getLag: fake slave lagged {$this->mFakeSlaveLag} seconds\n" ); - return $this->mFakeSlaveLag; - } - $res = $this->query( 'SHOW PROCESSLIST' ); - # Find slave SQL thread - while ( $row = $this->fetchObject( $res ) ) { - /* This should work for most situations - when default db - * for thread is not specified, it had no events executed, - * and therefore it doesn't know yet how lagged it is. - * - * Relay log I/O thread does not select databases. - */ - if ( $row->User == 'system user' && - $row->State != 'Waiting for master to send event' && - $row->State != 'Connecting to master' && - $row->State != 'Queueing master event to the relay log' && - $row->State != 'Waiting for master update' && - $row->State != 'Requesting binlog dump' - ) { - # This is it, return the time (except -ve) - if ( $row->Time > 0x7fffffff ) { - return false; - } else { - return $row->Time; - } - } - } - return false; - } - - /** - * Get status information from SHOW STATUS in an associative array - */ - function getStatus($which="%") { - $res = $this->query( "SHOW STATUS LIKE '{$which}'" ); - $status = array(); - while ( $row = $this->fetchObject( $res ) ) { - $status[$row->Variable_name] = $row->Value; - } - return $status; - } - - /** - * Return the maximum number of items allowed in a list, or 0 for unlimited. - */ - function maxListLen() { - return 0; - } - - function encodeBlob($b) { - return $b; - } - - function decodeBlob($b) { - return $b; - } - - /** - * Override database's default connection timeout. - * May be useful for very long batch queries such as - * full-wiki dumps, where a single query reads out - * over hours or days. - * @param int $timeout in seconds - */ - public function setTimeout( $timeout ) { - $this->query( "SET net_read_timeout=$timeout" ); - $this->query( "SET net_write_timeout=$timeout" ); - } - - /** - * Read and execute SQL commands from a file. - * Returns true on success, error string or exception on failure (depending on object's error ignore settings) - * @param string $filename File name to open - * @param callback $lineCallback Optional function called before reading each line - * @param callback $resultCallback Optional function called for each MySQL result - */ - function sourceFile( $filename, $lineCallback = false, $resultCallback = false ) { - $fp = fopen( $filename, 'r' ); - if ( false === $fp ) { - throw new MWException( "Could not open \"{$filename}\".\n" ); - } - $error = $this->sourceStream( $fp, $lineCallback, $resultCallback ); - fclose( $fp ); - return $error; - } - - /** - * Read and execute commands from an open file handle - * Returns true on success, error string or exception on failure (depending on object's error ignore settings) - * @param string $fp File handle - * @param callback $lineCallback Optional function called before reading each line - * @param callback $resultCallback Optional function called for each MySQL result - */ - function sourceStream( $fp, $lineCallback = false, $resultCallback = false ) { - $cmd = ""; - $done = false; - $dollarquote = false; - - while ( ! feof( $fp ) ) { - if ( $lineCallback ) { - call_user_func( $lineCallback ); - } - $line = trim( fgets( $fp, 1024 ) ); - $sl = strlen( $line ) - 1; - - if ( $sl < 0 ) { continue; } - if ( '-' == $line{0} && '-' == $line{1} ) { continue; } - - ## Allow dollar quoting for function declarations - if (substr($line,0,4) == '$mw$') { - if ($dollarquote) { - $dollarquote = false; - $done = true; - } - else { - $dollarquote = true; - } - } - else if (!$dollarquote) { - if ( ';' == $line{$sl} && ($sl < 2 || ';' != $line{$sl - 1})) { - $done = true; - $line = substr( $line, 0, $sl ); - } - } - - if ( '' != $cmd ) { $cmd .= ' '; } - $cmd .= "$line\n"; - - if ( $done ) { - $cmd = str_replace(';;', ";", $cmd); - $cmd = $this->replaceVars( $cmd ); - $res = $this->query( $cmd, __METHOD__ ); - if ( $resultCallback ) { - call_user_func( $resultCallback, $res ); - } - - if ( false === $res ) { - $err = $this->lastError(); - return "Query \"{$cmd}\" failed with error code \"$err\".\n"; - } - - $cmd = ''; - $done = false; - } - } - return true; - } - - - /** - * Replace variables in sourced SQL - */ - protected function replaceVars( $ins ) { - $varnames = array( - 'wgDBserver', 'wgDBname', 'wgDBintlname', 'wgDBuser', - 'wgDBpassword', 'wgDBsqluser', 'wgDBsqlpassword', - 'wgDBadminuser', 'wgDBadminpassword', 'wgDBTableOptions', - ); - - // Ordinary variables - foreach ( $varnames as $var ) { - if( isset( $GLOBALS[$var] ) ) { - $val = addslashes( $GLOBALS[$var] ); // FIXME: safety check? - $ins = str_replace( '{$' . $var . '}', $val, $ins ); - $ins = str_replace( '/*$' . $var . '*/`', '`' . $val, $ins ); - $ins = str_replace( '/*$' . $var . '*/', $val, $ins ); - } - } - - // Table prefixes - $ins = preg_replace_callback( '/\/\*(?:\$wgDBprefix|_)\*\/([a-zA-Z_0-9]*)/', - array( &$this, 'tableNameCallback' ), $ins ); - return $ins; - } - - /** - * Table name callback - * @private - */ - protected function tableNameCallback( $matches ) { - return $this->tableName( $matches[1] ); - } - - /* - * Build a concatenation list to feed into a SQL query - */ - function buildConcat( $stringList ) { - return 'CONCAT(' . implode( ',', $stringList ) . ')'; - } - - /** - * Acquire a lock - * - * Abstracted from Filestore::lock() so child classes can implement for - * their own needs. - * - * @param string $lockName Name of lock to aquire - * @param string $method Name of method calling us - * @return bool - */ - public function lock( $lockName, $method ) { - $lockName = $this->addQuotes( $lockName ); - $result = $this->query( "SELECT GET_LOCK($lockName, 5) AS lockstatus", $method ); - $row = $this->fetchObject( $result ); - $this->freeResult( $result ); - - if( $row->lockstatus == 1 ) { - return true; - } else { - wfDebug( __METHOD__." failed to acquire lock\n" ); - return false; - } - } - /** - * Release a lock. - * - * @todo fixme - Figure out a way to return a bool - * based on successful lock release. - * - * @param string $lockName Name of lock to release - * @param string $method Name of method calling us - */ - public function unlock( $lockName, $method ) { - $lockName = $this->addQuotes( $lockName ); - $result = $this->query( "SELECT RELEASE_LOCK($lockName)", $method ); - $this->freeResult( $result ); - } -} - -/** - * Database abstraction object for mySQL - * Inherit all methods and properties of Database::Database() - * - * @ingroup Database - * @see Database - */ -class DatabaseMysql extends Database { - # Inherit all -} - -/****************************************************************************** - * Utility classes - *****************************************************************************/ - -/** - * Utility class. - * @ingroup Database - */ -class DBObject { - public $mData; - - function DBObject($data) { - $this->mData = $data; - } - - function isLOB() { - return false; - } - - function data() { - return $this->mData; - } -} - -/** - * Utility class - * @ingroup Database - * - * This allows us to distinguish a blob from a normal string and an array of strings - */ -class Blob { - private $mData; - function __construct($data) { - $this->mData = $data; - } - function fetch() { - return $this->mData; - } -} - -/** - * Utility class. - * @ingroup Database - */ -class MySQLField { - private $name, $tablename, $default, $max_length, $nullable, - $is_pk, $is_unique, $is_multiple, $is_key, $type; - function __construct ($info) { - $this->name = $info->name; - $this->tablename = $info->table; - $this->default = $info->def; - $this->max_length = $info->max_length; - $this->nullable = !$info->not_null; - $this->is_pk = $info->primary_key; - $this->is_unique = $info->unique_key; - $this->is_multiple = $info->multiple_key; - $this->is_key = ($this->is_pk || $this->is_unique || $this->is_multiple); - $this->type = $info->type; - } - - function name() { - return $this->name; - } - - function tableName() { - return $this->tableName; - } - - function defaultValue() { - return $this->default; - } - - function maxLength() { - return $this->max_length; - } - - function nullable() { - return $this->nullable; - } - - function isKey() { - return $this->is_key; - } - - function isMultipleKey() { - return $this->is_multiple; - } - - function type() { - return $this->type; - } -} - -/****************************************************************************** - * Error classes - *****************************************************************************/ - -/** - * Database error base class - * @ingroup Database - */ -class DBError extends MWException { - public $db; - - /** - * Construct a database error - * @param Database $db The database object which threw the error - * @param string $error A simple error message to be used for debugging - */ - function __construct( Database &$db, $error ) { - $this->db =& $db; - parent::__construct( $error ); - } -} - -/** - * @ingroup Database - */ -class DBConnectionError extends DBError { - public $error; - - function __construct( Database &$db, $error = 'unknown error' ) { - $msg = 'DB connection error'; - if ( trim( $error ) != '' ) { - $msg .= ": $error"; - } - $this->error = $error; - parent::__construct( $db, $msg ); - } - - function useOutputPage() { - // Not likely to work - return false; - } - - function useMessageCache() { - // Not likely to work - return false; - } - - function getText() { - return $this->getMessage() . "\n"; - } - - function getLogMessage() { - # Don't send to the exception log - return false; - } - - function getPageTitle() { - global $wgSitename; - return "$wgSitename has a problem"; - } - - function getHTML() { - global $wgTitle, $wgUseFileCache, $title, $wgInputEncoding; - global $wgSitename, $wgServer, $wgMessageCache; - - # I give up, Brion is right. Getting the message cache to work when there is no DB is tricky. - # Hard coding strings instead. - - $noconnect = "

Sorry! This site is experiencing technical difficulties.

Try waiting a few minutes and reloading.

(Can't contact the database server: $1)

"; - $mainpage = 'Main Page'; - $searchdisabled = <<$wgSitename search is disabled for performance reasons. You can search via Google in the meantime. -Note that their indexes of $wgSitename content may be out of date.

', -EOT; - - $googlesearch = " - -
- -
- -\"Google\" - - - - -
WWW $wgServer
- - - -
-
-"; - $cachederror = "The following is a cached copy of the requested page, and may not be up to date. "; - - # No database access - if ( is_object( $wgMessageCache ) ) { - $wgMessageCache->disable(); - } - - if ( trim( $this->error ) == '' ) { - $this->error = $this->db->getProperty('mServer'); - } - - $text = str_replace( '$1', $this->error, $noconnect ); - $text .= wfGetSiteNotice(); - - if($wgUseFileCache) { - if($wgTitle) { - $t =& $wgTitle; - } else { - if($title) { - $t = Title::newFromURL( $title ); - } elseif (@/**/$_REQUEST['search']) { - $search = $_REQUEST['search']; - return $searchdisabled . - str_replace( array( '$1', '$2' ), array( htmlspecialchars( $search ), - $wgInputEncoding ), $googlesearch ); - } else { - $t = Title::newFromText( $mainpage ); - } - } - - $cache = new HTMLFileCache( $t ); - if( $cache->isFileCached() ) { - // @todo, FIXME: $msg is not defined on the next line. - $msg = '

'.$msg."
\n" . - $cachederror . "

\n"; - - $tag = '
'; - $text = str_replace( - $tag, - $tag . $msg, - $cache->fetchPageText() ); - } - } - - return $text; - } -} - -/** - * @ingroup Database - */ -class DBQueryError extends DBError { - public $error, $errno, $sql, $fname; - - function __construct( Database &$db, $error, $errno, $sql, $fname ) { - $message = "A database error has occurred\n" . - "Query: $sql\n" . - "Function: $fname\n" . - "Error: $errno $error\n"; - - parent::__construct( $db, $message ); - $this->error = $error; - $this->errno = $errno; - $this->sql = $sql; - $this->fname = $fname; - } - - function getText() { - if ( $this->useMessageCache() ) { - return wfMsg( 'dberrortextcl', htmlspecialchars( $this->getSQL() ), - htmlspecialchars( $this->fname ), $this->errno, htmlspecialchars( $this->error ) ) . "\n"; - } else { - return $this->getMessage(); - } - } - - function getSQL() { - global $wgShowSQLErrors; - if( !$wgShowSQLErrors ) { - return $this->msg( 'sqlhidden', 'SQL hidden' ); - } else { - return $this->sql; - } - } - - function getLogMessage() { - # Don't send to the exception log - return false; - } - - function getPageTitle() { - return $this->msg( 'databaseerror', 'Database error' ); - } - - function getHTML() { - if ( $this->useMessageCache() ) { - return wfMsgNoDB( 'dberrortext', htmlspecialchars( $this->getSQL() ), - htmlspecialchars( $this->fname ), $this->errno, htmlspecialchars( $this->error ) ); - } else { - return nl2br( htmlspecialchars( $this->getMessage() ) ); - } - } -} - -/** - * @ingroup Database - */ -class DBUnexpectedError extends DBError {} - - -/** - * Result wrapper for grabbing data queried by someone else - * @ingroup Database - */ -class ResultWrapper implements Iterator { - var $db, $result, $pos = 0, $currentRow = null; - - /** - * Create a new result object from a result resource and a Database object - */ - function ResultWrapper( $database, $result ) { - $this->db = $database; - if ( $result instanceof ResultWrapper ) { - $this->result = $result->result; - } else { - $this->result = $result; - } - } - - /** - * Get the number of rows in a result object - */ - function numRows() { - return $this->db->numRows( $this->result ); - } - - /** - * Fetch the next row from the given result object, in object form. - * Fields can be retrieved with $row->fieldname, with fields acting like - * member variables. - * - * @param $res SQL result object as returned from Database::query(), etc. - * @return MySQL row object - * @throws DBUnexpectedError Thrown if the database returns an error - */ - function fetchObject() { - return $this->db->fetchObject( $this->result ); - } - - /** - * Fetch the next row from the given result object, in associative array - * form. Fields are retrieved with $row['fieldname']. - * - * @param $res SQL result object as returned from Database::query(), etc. - * @return MySQL row object - * @throws DBUnexpectedError Thrown if the database returns an error - */ - function fetchRow() { - return $this->db->fetchRow( $this->result ); - } - - /** - * Free a result object - */ - function free() { - $this->db->freeResult( $this->result ); - unset( $this->result ); - unset( $this->db ); - } - - /** - * Change the position of the cursor in a result object - * See mysql_data_seek() - */ - function seek( $row ) { - $this->db->dataSeek( $this->result, $row ); - } - - /********************* - * Iterator functions - * Note that using these in combination with the non-iterator functions - * above may cause rows to be skipped or repeated. - */ - - function rewind() { - if ($this->numRows()) { - $this->db->dataSeek($this->result, 0); - } - $this->pos = 0; - $this->currentRow = null; - } - - function current() { - if ( is_null( $this->currentRow ) ) { - $this->next(); - } - return $this->currentRow; - } - - function key() { - return $this->pos; - } - - function next() { - $this->pos++; - $this->currentRow = $this->fetchObject(); - return $this->currentRow; - } - - function valid() { - return $this->current() !== false; - } -} - -class MySQLMasterPos { - var $file, $pos; - - function __construct( $file, $pos ) { - $this->file = $file; - $this->pos = $pos; - } - - function __toString() { - return "{$this->file}/{$this->pos}"; - } -} diff --git a/includes/DatabaseMssql.php b/includes/DatabaseMssql.php deleted file mode 100755 index a6dda2573f..0000000000 --- a/includes/DatabaseMssql.php +++ /dev/null @@ -1,1019 +0,0 @@ -mOut =& $wgOut; - $this->mFailFunction = $failFunction; - $this->mFlags = $flags; - - if ( $this->mFlags & DBO_DEFAULT ) { - if ( $wgCommandLineMode ) { - $this->mFlags &= ~DBO_TRX; - } else { - $this->mFlags |= DBO_TRX; - } - } - - /** Get the default table prefix*/ - $this->mTablePrefix = $tablePrefix == 'get from global' ? $wgDBprefix : $tablePrefix; - - if ($server) $this->open($server, $user, $password, $dbName); - - } - - /** - * todo: check if these should be true like parent class - */ - function implicitGroupby() { return false; } - function implicitOrderby() { return false; } - - static function newFromParams($server, $user, $password, $dbName, $failFunction = false, $flags = 0) { - return new DatabaseMssql($server, $user, $password, $dbName, $failFunction, $flags); - } - - /** Open an MSSQL database and return a resource handle to it - * NOTE: only $dbName is used, the other parameters are irrelevant for MSSQL databases - */ - function open($server,$user,$password,$dbName) { - wfProfileIn(__METHOD__); - - # Test for missing mysql.so - # First try to load it - if (!@extension_loaded('mssql')) { - @dl('mssql.so'); - } - - # Fail now - # Otherwise we get a suppressed fatal error, which is very hard to track down - if (!function_exists( 'mssql_connect')) { - throw new DBConnectionError( $this, "MSSQL functions missing, have you compiled PHP with the --with-mssql option?\n" ); - } - - $this->close(); - $this->mServer = $server; - $this->mUser = $user; - $this->mPassword = $password; - $this->mDBname = $dbName; - - wfProfileIn("dbconnect-$server"); - - # Try to connect up to three times - # The kernel's default SYN retransmission period is far too slow for us, - # so we use a short timeout plus a manual retry. - $this->mConn = false; - $max = 3; - for ( $i = 0; $i < $max && !$this->mConn; $i++ ) { - if ( $i > 1 ) { - usleep( 1000 ); - } - if ($this->mFlags & DBO_PERSISTENT) { - @/**/$this->mConn = mssql_pconnect($server, $user, $password); - } else { - # Create a new connection... - @/**/$this->mConn = mssql_connect($server, $user, $password, true); - } - } - - wfProfileOut("dbconnect-$server"); - - if ($dbName != '') { - if ($this->mConn !== false) { - $success = @/**/mssql_select_db($dbName, $this->mConn); - if (!$success) { - $error = "Error selecting database $dbName on server {$this->mServer} " . - "from client host {$wguname['nodename']}\n"; - wfLogDBError(" Error selecting database $dbName on server {$this->mServer} \n"); - wfDebug( $error ); - } - } else { - wfDebug("DB connection error\n"); - wfDebug("Server: $server, User: $user, Password: ".substr($password, 0, 3)."...\n"); - $success = false; - } - } else { - # Delay USE query - $success = (bool)$this->mConn; - } - - if (!$success) $this->reportConnectionError(); - $this->mOpened = $success; - wfProfileOut(__METHOD__); - return $success; - } - - /** - * Close an MSSQL database - */ - function close() { - $this->mOpened = false; - if ($this->mConn) { - if ($this->trxLevel()) $this->immediateCommit(); - return mssql_close($this->mConn); - } else return true; - } - - /** - * - MSSQL doesn't seem to do buffered results - * - the trasnaction syntax is modified here to avoid having to replicate - * Database::query which uses BEGIN, COMMIT, ROLLBACK - */ - function doQuery($sql) { - if ($sql == 'BEGIN' || $sql == 'COMMIT' || $sql == 'ROLLBACK') return true; # $sql .= ' TRANSACTION'; - $sql = preg_replace('|[^\x07-\x7e]|','?',$sql); # TODO: need to fix unicode - just removing it here while testing - $ret = mssql_query($sql, $this->mConn); - if ($ret === false) { - $err = mssql_get_last_message(); - if ($err) $this->mlastError = $err; - $row = mssql_fetch_row(mssql_query('select @@ERROR')); - if ($row[0]) $this->mlastErrorNo = $row[0]; - } else $this->mlastErrorNo = false; - return $ret; - } - - /**#@+ - * @param mixed $res A SQL result - */ - /** - * Free a result object - */ - function freeResult( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - if ( !@/**/mssql_free_result( $res ) ) { - throw new DBUnexpectedError( $this, "Unable to free MSSQL result" ); - } - } - - /** - * Fetch the next row from the given result object, in object form. - * Fields can be retrieved with $row->fieldname, with fields acting like - * member variables. - * - * @param $res SQL result object as returned from Database::query(), etc. - * @return MySQL row object - * @throws DBUnexpectedError Thrown if the database returns an error - */ - function fetchObject( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @/**/$row = mssql_fetch_object( $res ); - if ( $this->lastErrno() ) { - throw new DBUnexpectedError( $this, 'Error in fetchObject(): ' . htmlspecialchars( $this->lastError() ) ); - } - return $row; - } - - /** - * Fetch the next row from the given result object, in associative array - * form. Fields are retrieved with $row['fieldname']. - * - * @param $res SQL result object as returned from Database::query(), etc. - * @return MySQL row object - * @throws DBUnexpectedError Thrown if the database returns an error - */ - function fetchRow( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @/**/$row = mssql_fetch_array( $res ); - if ( $this->lastErrno() ) { - throw new DBUnexpectedError( $this, 'Error in fetchRow(): ' . htmlspecialchars( $this->lastError() ) ); - } - return $row; - } - - /** - * Get the number of rows in a result object - */ - function numRows( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @/**/$n = mssql_num_rows( $res ); - if ( $this->lastErrno() ) { - throw new DBUnexpectedError( $this, 'Error in numRows(): ' . htmlspecialchars( $this->lastError() ) ); - } - return $n; - } - - /** - * Get the number of fields in a result object - * See documentation for mysql_num_fields() - */ - function numFields( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mssql_num_fields( $res ); - } - - /** - * Get a field name in a result object - * See documentation for mysql_field_name(): - * http://www.php.net/mysql_field_name - */ - function fieldName( $res, $n ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mssql_field_name( $res, $n ); - } - - /** - * Get the inserted value of an auto-increment row - * - * The value inserted should be fetched from nextSequenceValue() - * - * Example: - * $id = $dbw->nextSequenceValue('page_page_id_seq'); - * $dbw->insert('page',array('page_id' => $id)); - * $id = $dbw->insertId(); - */ - function insertId() { - $row = mssql_fetch_row(mssql_query('select @@IDENTITY')); - return $row[0]; - } - - /** - * Change the position of the cursor in a result object - * See mysql_data_seek() - */ - function dataSeek( $res, $row ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mssql_data_seek( $res, $row ); - } - - /** - * Get the last error number - */ - function lastErrno() { - return $this->mlastErrorNo; - } - - /** - * Get a description of the last error - */ - function lastError() { - return $this->mlastError; - } - - /** - * Get the number of rows affected by the last write query - */ - function affectedRows() { - return mssql_rows_affected( $this->mConn ); - } - - /** - * Simple UPDATE wrapper - * Usually aborts on failure - * If errors are explicitly ignored, returns success - * - * This function exists for historical reasons, Database::update() has a more standard - * calling convention and feature set - */ - function set( $table, $var, $value, $cond, $fname = 'Database::set' ) - { - if ($value == "NULL") $value = "''"; # see comments in makeListWithoutNulls() - $table = $this->tableName( $table ); - $sql = "UPDATE $table SET $var = '" . - $this->strencode( $value ) . "' WHERE ($cond)"; - return (bool)$this->query( $sql, $fname ); - } - - /** - * Simple SELECT wrapper, returns a single field, input must be encoded - * Usually aborts on failure - * If errors are explicitly ignored, returns FALSE on failure - */ - function selectField( $table, $var, $cond='', $fname = 'Database::selectField', $options = array() ) { - if ( !is_array( $options ) ) { - $options = array( $options ); - } - $options['LIMIT'] = 1; - - $res = $this->select( $table, $var, $cond, $fname, $options ); - if ( $res === false || !$this->numRows( $res ) ) { - return false; - } - $row = $this->fetchRow( $res ); - if ( $row !== false ) { - $this->freeResult( $res ); - return $row[0]; - } else { - return false; - } - } - - /** - * Returns an optional USE INDEX clause to go after the table, and a - * string to go at the end of the query - * - * @private - * - * @param array $options an associative array of options to be turned into - * an SQL query, valid keys are listed in the function. - * @return array - */ - function makeSelectOptions( $options ) { - $preLimitTail = $postLimitTail = ''; - $startOpts = ''; - - $noKeyOptions = array(); - foreach ( $options as $key => $option ) { - if ( is_numeric( $key ) ) { - $noKeyOptions[$option] = true; - } - } - - if ( isset( $options['GROUP BY'] ) ) $preLimitTail .= " GROUP BY {$options['GROUP BY']}"; - if ( isset( $options['HAVING'] ) ) $preLimitTail .= " HAVING {$options['HAVING']}"; - if ( isset( $options['ORDER BY'] ) ) $preLimitTail .= " ORDER BY {$options['ORDER BY']}"; - - //if (isset($options['LIMIT'])) { - // $tailOpts .= $this->limitResult('', $options['LIMIT'], - // isset($options['OFFSET']) ? $options['OFFSET'] - // : false); - //} - - if ( isset( $noKeyOptions['FOR UPDATE'] ) ) $postLimitTail .= ' FOR UPDATE'; - if ( isset( $noKeyOptions['LOCK IN SHARE MODE'] ) ) $postLimitTail .= ' LOCK IN SHARE MODE'; - if ( isset( $noKeyOptions['DISTINCT'] ) || isset( $noKeyOptions['DISTINCTROW'] ) ) $startOpts .= 'DISTINCT'; - - # Various MySQL extensions - if ( isset( $noKeyOptions['STRAIGHT_JOIN'] ) ) $startOpts .= ' /*! STRAIGHT_JOIN */'; - if ( isset( $noKeyOptions['HIGH_PRIORITY'] ) ) $startOpts .= ' HIGH_PRIORITY'; - if ( isset( $noKeyOptions['SQL_BIG_RESULT'] ) ) $startOpts .= ' SQL_BIG_RESULT'; - if ( isset( $noKeyOptions['SQL_BUFFER_RESULT'] ) ) $startOpts .= ' SQL_BUFFER_RESULT'; - if ( isset( $noKeyOptions['SQL_SMALL_RESULT'] ) ) $startOpts .= ' SQL_SMALL_RESULT'; - if ( isset( $noKeyOptions['SQL_CALC_FOUND_ROWS'] ) ) $startOpts .= ' SQL_CALC_FOUND_ROWS'; - if ( isset( $noKeyOptions['SQL_CACHE'] ) ) $startOpts .= ' SQL_CACHE'; - if ( isset( $noKeyOptions['SQL_NO_CACHE'] ) ) $startOpts .= ' SQL_NO_CACHE'; - - if ( isset( $options['USE INDEX'] ) && ! is_array( $options['USE INDEX'] ) ) { - $useIndex = $this->useIndexClause( $options['USE INDEX'] ); - } else { - $useIndex = ''; - } - - return array( $startOpts, $useIndex, $preLimitTail, $postLimitTail ); - } - - /** - * SELECT wrapper - * - * @param mixed $table Array or string, table name(s) (prefix auto-added) - * @param mixed $vars Array or string, field name(s) to be retrieved - * @param mixed $conds Array or string, condition(s) for WHERE - * @param string $fname Calling function name (use __METHOD__) for logs/profiling - * @param array $options Associative array of options (e.g. array('GROUP BY' => 'page_title')), - * see Database::makeSelectOptions code for list of supported stuff - * @return mixed Database result resource (feed to Database::fetchObject or whatever), or false on failure - */ - function select( $table, $vars, $conds='', $fname = 'Database::select', $options = array() ) - { - if( is_array( $vars ) ) { - $vars = implode( ',', $vars ); - } - if( !is_array( $options ) ) { - $options = array( $options ); - } - if( is_array( $table ) ) { - if ( isset( $options['USE INDEX'] ) && is_array( $options['USE INDEX'] ) ) - $from = ' FROM ' . $this->tableNamesWithUseIndex( $table, $options['USE INDEX'] ); - else - $from = ' FROM ' . implode( ',', array_map( array( &$this, 'tableName' ), $table ) ); - } elseif ($table!='') { - if ($table{0}==' ') { - $from = ' FROM ' . $table; - } else { - $from = ' FROM ' . $this->tableName( $table ); - } - } else { - $from = ''; - } - - list( $startOpts, $useIndex, $preLimitTail, $postLimitTail ) = $this->makeSelectOptions( $options ); - - if( !empty( $conds ) ) { - if ( is_array( $conds ) ) { - $conds = $this->makeList( $conds, LIST_AND ); - } - $sql = "SELECT $startOpts $vars $from $useIndex WHERE $conds $preLimitTail"; - } else { - $sql = "SELECT $startOpts $vars $from $useIndex $preLimitTail"; - } - - if (isset($options['LIMIT'])) - $sql = $this->limitResult($sql, $options['LIMIT'], - isset($options['OFFSET']) ? $options['OFFSET'] : false); - $sql = "$sql $postLimitTail"; - - if (isset($options['EXPLAIN'])) { - $sql = 'EXPLAIN ' . $sql; - } - return $this->query( $sql, $fname ); - } - - /** - * Estimate rows in dataset - * Returns estimated count, based on EXPLAIN output - * Takes same arguments as Database::select() - */ - function estimateRowCount( $table, $vars='*', $conds='', $fname = 'Database::estimateRowCount', $options = array() ) { - $rows = 0; - $res = $this->select ($table, 'COUNT(*)', $conds, $fname, $options ); - if ($res) { - $row = $this->fetchObject($res); - $rows = $row[0]; - } - $this->freeResult($res); - return $rows; - } - - /** - * Determines whether a field exists in a table - * Usually aborts on failure - * If errors are explicitly ignored, returns NULL on failure - */ - function fieldExists( $table, $field, $fname = 'Database::fieldExists' ) { - $table = $this->tableName( $table ); - $sql = "SELECT TOP 1 * FROM $table"; - $res = $this->query( $sql, 'Database::fieldExists' ); - - $found = false; - while ( $row = $this->fetchArray( $res ) ) { - if ( isset($row[$field]) ) { - $found = true; - break; - } - } - - $this->freeResult( $res ); - return $found; - } - - /** - * Get information about an index into an object - * Returns false if the index does not exist - */ - function indexInfo( $table, $index, $fname = 'Database::indexInfo' ) { - - throw new DBUnexpectedError( $this, 'Database::indexInfo called which is not supported yet' ); - return NULL; - - $table = $this->tableName( $table ); - $sql = 'SHOW INDEX FROM '.$table; - $res = $this->query( $sql, $fname ); - if ( !$res ) { - return NULL; - } - - $result = array(); - while ( $row = $this->fetchObject( $res ) ) { - if ( $row->Key_name == $index ) { - $result[] = $row; - } - } - $this->freeResult($res); - - return empty($result) ? false : $result; - } - - /** - * Query whether a given table exists - */ - function tableExists( $table ) { - $table = $this->tableName( $table ); - $res = $this->query( "SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '$table'" ); - $exist = ($res->numRows() > 0); - $this->freeResult($res); - return $exist; - } - - /** - * mysql_fetch_field() wrapper - * Returns false if the field doesn't exist - * - * @param $table - * @param $field - */ - function fieldInfo( $table, $field ) { - $table = $this->tableName( $table ); - $res = $this->query( "SELECT TOP 1 * FROM $table" ); - $n = mssql_num_fields( $res->result ); - for( $i = 0; $i < $n; $i++ ) { - $meta = mssql_fetch_field( $res->result, $i ); - if( $field == $meta->name ) { - return new MSSQLField($meta); - } - } - return false; - } - - /** - * mysql_field_type() wrapper - */ - function fieldType( $res, $index ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return mssql_field_type( $res, $index ); - } - - /** - * INSERT wrapper, inserts an array into a table - * - * $a may be a single associative array, or an array of these with numeric keys, for - * multi-row insert. - * - * Usually aborts on failure - * If errors are explicitly ignored, returns success - * - * Same as parent class implementation except that it removes primary key from column lists - * because MSSQL doesn't support writing nulls to IDENTITY (AUTO_INCREMENT) columns - */ - function insert( $table, $a, $fname = 'Database::insert', $options = array() ) { - # No rows to insert, easy just return now - if ( !count( $a ) ) { - return true; - } - $table = $this->tableName( $table ); - if ( !is_array( $options ) ) { - $options = array( $options ); - } - - # todo: need to record primary keys at table create time, and remove NULL assignments to them - if ( isset( $a[0] ) && is_array( $a[0] ) ) { - $multi = true; - $keys = array_keys( $a[0] ); -# if (ereg('_id$',$keys[0])) { - foreach ($a as $i) { - if (is_null($i[$keys[0]])) unset($i[$keys[0]]); # remove primary-key column from multiple insert lists if empty value - } -# } - $keys = array_keys( $a[0] ); - } else { - $multi = false; - $keys = array_keys( $a ); -# if (ereg('_id$',$keys[0]) && empty($a[$keys[0]])) unset($a[$keys[0]]); # remove primary-key column from insert list if empty value - if (is_null($a[$keys[0]])) unset($a[$keys[0]]); # remove primary-key column from insert list if empty value - $keys = array_keys( $a ); - } - - # handle IGNORE option - # example: - # MySQL: INSERT IGNORE INTO user_groups (ug_user,ug_group) VALUES ('1','sysop') - # MSSQL: IF NOT EXISTS (SELECT * FROM user_groups WHERE ug_user = '1') INSERT INTO user_groups (ug_user,ug_group) VALUES ('1','sysop') - $ignore = in_array('IGNORE',$options); - - # remove IGNORE from options list - if ($ignore) { - $oldoptions = $options; - $options = array(); - foreach ($oldoptions as $o) if ($o != 'IGNORE') $options[] = $o; - } - - $keylist = implode(',', $keys); - $sql = 'INSERT '.implode(' ', $options)." INTO $table (".implode(',', $keys).') VALUES '; - if ($multi) { - if ($ignore) { - # If multiple and ignore, then do each row as a separate conditional insert - foreach ($a as $row) { - $prival = $row[$keys[0]]; - $sql = "IF NOT EXISTS (SELECT * FROM $table WHERE $keys[0] = '$prival') $sql"; - if (!$this->query("$sql (".$this->makeListWithoutNulls($row).')', $fname)) return false; - } - return true; - } else { - $first = true; - foreach ($a as $row) { - if ($first) $first = false; else $sql .= ','; - $sql .= '('.$this->makeListWithoutNulls($row).')'; - } - } - } else { - if ($ignore) { - $prival = $a[$keys[0]]; - $sql = "IF NOT EXISTS (SELECT * FROM $table WHERE $keys[0] = '$prival') $sql"; - } - $sql .= '('.$this->makeListWithoutNulls($a).')'; - } - return (bool)$this->query( $sql, $fname ); - } - - /** - * MSSQL doesn't allow implicit casting of NULL's into non-null values for NOT NULL columns - * for now I've just converted the NULL's in the lists for updates and inserts into empty strings - * which get implicitly casted to 0 for numeric columns - * NOTE: the set() method above converts NULL to empty string as well but not via this method - */ - function makeListWithoutNulls($a, $mode = LIST_COMMA) { - return str_replace("NULL","''",$this->makeList($a,$mode)); - } - - /** - * UPDATE wrapper, takes a condition array and a SET array - * - * @param string $table The table to UPDATE - * @param array $values An array of values to SET - * @param array $conds An array of conditions (WHERE). Use '*' to update all rows. - * @param string $fname The Class::Function calling this function - * (for the log) - * @param array $options An array of UPDATE options, can be one or - * more of IGNORE, LOW_PRIORITY - * @return bool - */ - function update( $table, $values, $conds, $fname = 'Database::update', $options = array() ) { - $table = $this->tableName( $table ); - $opts = $this->makeUpdateOptions( $options ); - $sql = "UPDATE $opts $table SET " . $this->makeListWithoutNulls( $values, LIST_SET ); - if ( $conds != '*' ) { - $sql .= " WHERE " . $this->makeList( $conds, LIST_AND ); - } - return $this->query( $sql, $fname ); - } - - /** - * Make UPDATE options for the Database::update function - * - * @private - * @param array $options The options passed to Database::update - * @return string - */ - function makeUpdateOptions( $options ) { - if( !is_array( $options ) ) { - $options = array( $options ); - } - $opts = array(); - if ( in_array( 'LOW_PRIORITY', $options ) ) - $opts[] = $this->lowPriorityOption(); - if ( in_array( 'IGNORE', $options ) ) - $opts[] = 'IGNORE'; - return implode(' ', $opts); - } - - /** - * Change the current database - */ - function selectDB( $db ) { - $this->mDBname = $db; - return mssql_select_db( $db, $this->mConn ); - } - - /** - * MSSQL has a problem with the backtick quoting, so all this does is ensure the prefix is added exactly once - */ - function tableName($name) { - return strpos($name, $this->mTablePrefix) === 0 ? $name : "{$this->mTablePrefix}$name"; - } - - /** - * MSSQL doubles quotes instead of escaping them - * @param string $s String to be slashed. - * @return string slashed string. - */ - function strencode($s) { - return str_replace("'","''",$s); - } - - /** - * USE INDEX clause - */ - function useIndexClause( $index ) { - return ""; - } - - /** - * REPLACE query wrapper - * PostgreSQL simulates this with a DELETE followed by INSERT - * $row is the row to insert, an associative array - * $uniqueIndexes is an array of indexes. Each element may be either a - * field name or an array of field names - * - * It may be more efficient to leave off unique indexes which are unlikely to collide. - * However if you do this, you run the risk of encountering errors which wouldn't have - * occurred in MySQL - * - * @todo migrate comment to phodocumentor format - */ - function replace( $table, $uniqueIndexes, $rows, $fname = 'Database::replace' ) { - $table = $this->tableName( $table ); - - # Single row case - if ( !is_array( reset( $rows ) ) ) { - $rows = array( $rows ); - } - - $sql = "REPLACE INTO $table (" . implode( ',', array_keys( $rows[0] ) ) .') VALUES '; - $first = true; - foreach ( $rows as $row ) { - if ( $first ) { - $first = false; - } else { - $sql .= ','; - } - $sql .= '(' . $this->makeList( $row ) . ')'; - } - return $this->query( $sql, $fname ); - } - - /** - * DELETE where the condition is a join - * MySQL does this with a multi-table DELETE syntax, PostgreSQL does it with sub-selects - * - * For safety, an empty $conds will not delete everything. If you want to delete all rows where the - * join condition matches, set $conds='*' - * - * DO NOT put the join condition in $conds - * - * @param string $delTable The table to delete from. - * @param string $joinTable The other table. - * @param string $delVar The variable to join on, in the first table. - * @param string $joinVar The variable to join on, in the second table. - * @param array $conds Condition array of field names mapped to variables, ANDed together in the WHERE clause - */ - function deleteJoin( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname = 'Database::deleteJoin' ) { - if ( !$conds ) { - throw new DBUnexpectedError( $this, 'Database::deleteJoin() called with empty $conds' ); - } - - $delTable = $this->tableName( $delTable ); - $joinTable = $this->tableName( $joinTable ); - $sql = "DELETE $delTable FROM $delTable, $joinTable WHERE $delVar=$joinVar "; - if ( $conds != '*' ) { - $sql .= ' AND ' . $this->makeList( $conds, LIST_AND ); - } - - return $this->query( $sql, $fname ); - } - - /** - * Returns the size of a text field, or -1 for "unlimited" - */ - function textFieldSize( $table, $field ) { - $table = $this->tableName( $table ); - $sql = "SELECT TOP 1 * FROM $table;"; - $res = $this->query( $sql, 'Database::textFieldSize' ); - $row = $this->fetchObject( $res ); - $this->freeResult( $res ); - - $m = array(); - if ( preg_match( '/\((.*)\)/', $row->Type, $m ) ) { - $size = $m[1]; - } else { - $size = -1; - } - return $size; - } - - /** - * @return string Returns the text of the low priority option if it is supported, or a blank string otherwise - */ - function lowPriorityOption() { - return 'LOW_PRIORITY'; - } - - /** - * INSERT SELECT wrapper - * $varMap must be an associative array of the form array( 'dest1' => 'source1', ...) - * Source items may be literals rather than field names, but strings should be quoted with Database::addQuotes() - * $conds may be "*" to copy the whole table - * srcTable may be an array of tables. - */ - function insertSelect( $destTable, $srcTable, $varMap, $conds, $fname = 'Database::insertSelect', - $insertOptions = array(), $selectOptions = array() ) - { - $destTable = $this->tableName( $destTable ); - if ( is_array( $insertOptions ) ) { - $insertOptions = implode( ' ', $insertOptions ); - } - if( !is_array( $selectOptions ) ) { - $selectOptions = array( $selectOptions ); - } - list( $startOpts, $useIndex, $tailOpts ) = $this->makeSelectOptions( $selectOptions ); - if( is_array( $srcTable ) ) { - $srcTable = implode( ',', array_map( array( &$this, 'tableName' ), $srcTable ) ); - } else { - $srcTable = $this->tableName( $srcTable ); - } - $sql = "INSERT $insertOptions INTO $destTable (" . implode( ',', array_keys( $varMap ) ) . ')' . - " SELECT $startOpts " . implode( ',', $varMap ) . - " FROM $srcTable $useIndex "; - if ( $conds != '*' ) { - $sql .= ' WHERE ' . $this->makeList( $conds, LIST_AND ); - } - $sql .= " $tailOpts"; - return $this->query( $sql, $fname ); - } - - /** - * Construct a LIMIT query with optional offset - * This is used for query pages - * $sql string SQL query we will append the limit to - * $limit integer the SQL limit - * $offset integer the SQL offset (default false) - */ - function limitResult($sql, $limit, $offset=false) { - if( !is_numeric($limit) ) { - throw new DBUnexpectedError( $this, "Invalid non-numeric limit passed to limitResult()\n" ); - } - if ($offset) { - throw new DBUnexpectedError( $this, 'Database::limitResult called with non-zero offset which is not supported yet' ); - } else { - $sql = ereg_replace("^SELECT", "SELECT TOP $limit", $sql); - } - return $sql; - } - - /** - * Returns an SQL expression for a simple conditional. - * - * @param string $cond SQL expression which will result in a boolean value - * @param string $trueVal SQL expression to return if true - * @param string $falseVal SQL expression to return if false - * @return string SQL fragment - */ - function conditional( $cond, $trueVal, $falseVal ) { - return " (CASE WHEN $cond THEN $trueVal ELSE $falseVal END) "; - } - - /** - * Should determine if the last failure was due to a deadlock - * - don't know how to do this in MSSQL - */ - function wasDeadlock() { - return false; - } - - /** - * Begin a transaction, committing any previously open transaction - * @deprecated use begin() - */ - function immediateBegin( $fname = 'Database::immediateBegin' ) { - $this->begin(); - } - - /** - * Commit transaction, if one is open - * @deprecated use commit() - */ - function immediateCommit( $fname = 'Database::immediateCommit' ) { - $this->commit(); - } - - /** - * Return MW-style timestamp used for MySQL schema - */ - function timestamp( $ts=0 ) { - return wfTimestamp(TS_MW,$ts); - } - - /** - * Local database timestamp format or null - */ - function timestampOrNull( $ts = null ) { - if( is_null( $ts ) ) { - return null; - } else { - return $this->timestamp( $ts ); - } - } - - /** - * @return string wikitext of a link to the server software's web site - */ - function getSoftwareLink() { - return "[http://www.microsoft.com/sql/default.mspx Microsoft SQL Server 2005 Home]"; - } - - /** - * @return string Version information from the database - */ - function getServerVersion() { - $row = mssql_fetch_row(mssql_query('select @@VERSION')); - return ereg("^(.+[0-9]+\\.[0-9]+\\.[0-9]+) ",$row[0],$m) ? $m[1] : $row[0]; - } - - function limitResultForUpdate($sql, $num) { - return $sql; - } - - /** - * not done - */ - public function setTimeout($timeout) { return; } - - function ping() { - wfDebug("Function ping() not written for MSSQL yet"); - return true; - } - - /** - * How lagged is this slave? - */ - public function getLag() { - return 0; - } - - /** - * Called by the installer script - * - this is the same way as DatabasePostgresql.php, MySQL reads in tables.sql and interwiki.sql using dbsource (which calls db->sourceFile) - */ - public function setup_database() { - global $IP,$wgDBTableOptions; - $wgDBTableOptions = ''; - $mysql_tmpl = "$IP/maintenance/tables.sql"; - $mysql_iw = "$IP/maintenance/interwiki.sql"; - $mssql_tmpl = "$IP/maintenance/mssql/tables.sql"; - - # Make an MSSQL template file if it doesn't exist (based on the same one MySQL uses to create a new wiki db) - if (!file_exists($mssql_tmpl)) { # todo: make this conditional again - $sql = file_get_contents($mysql_tmpl); - $sql = preg_replace('/^\s*--.*?$/m','',$sql); # strip comments - $sql = preg_replace('/^\s*(UNIQUE )?(INDEX|KEY|FULLTEXT).+?$/m', '', $sql); # These indexes should be created with a CREATE INDEX query - $sql = preg_replace('/(\sKEY) [^\(]+\(/is', '$1 (', $sql); # "KEY foo (foo)" should just be "KEY (foo)" - $sql = preg_replace('/(varchar\([0-9]+\))\s+binary/i', '$1', $sql); # "varchar(n) binary" cannot be followed by "binary" - $sql = preg_replace('/(var)?binary\(([0-9]+)\)/ie', '"varchar(".strlen(pow(2,$2)).")"', $sql); # use varchar(chars) not binary(bits) - $sql = preg_replace('/ (var)?binary/i', ' varchar', $sql); # use varchar not binary - $sql = preg_replace('/(varchar\([0-9]+\)(?! N))/', '$1 NULL', $sql); # MSSQL complains if NULL is put into a varchar - #$sql = preg_replace('/ binary/i',' varchar',$sql); # MSSQL binary's can't be assigned with strings, so use varchar's instead - #$sql = preg_replace('/(binary\([0-9]+\) (NOT NULL )?default) [\'"].*?[\'"]/i','$1 0',$sql); # binary default cannot be string - $sql = preg_replace('/[a-z]*(blob|text)([ ,])/i', 'text$2', $sql); # no BLOB types in MSSQL - $sql = preg_replace('/\).+?;/',');', $sql); # remove all table options - $sql = preg_replace('/ (un)?signed/i', '', $sql); - $sql = preg_replace('/ENUM\(.+?\)/','TEXT',$sql); # Make ENUM's into TEXT's - $sql = str_replace(' bool ', ' bit ', $sql); - $sql = str_replace('auto_increment', 'IDENTITY(1,1)', $sql); - #$sql = preg_replace('/NOT NULL(?! IDENTITY)/', 'NULL', $sql); # Allow NULL's for non IDENTITY columns - - # Tidy up and write file - $sql = preg_replace('/,\s*\)/s', "\n)", $sql); # Remove spurious commas left after INDEX removals - $sql = preg_replace('/^\s*^/m', '', $sql); # Remove empty lines - $sql = preg_replace('/;$/m', ";\n", $sql); # Separate each statement with an empty line - file_put_contents($mssql_tmpl, $sql); - } - - # Parse the MSSQL template replacing inline variables such as /*$wgDBprefix*/ - $err = $this->sourceFile($mssql_tmpl); - if ($err !== true) $this->reportQueryError($err,0,$sql,__FUNCTION__); - - # Use DatabasePostgres's code to populate interwiki from MySQL template - $f = fopen($mysql_iw,'r'); - if ($f == false) dieout("
  • Could not find the interwiki.sql file"); - $sql = "INSERT INTO {$this->mTablePrefix}interwiki(iw_prefix,iw_url,iw_local) VALUES "; - while (!feof($f)) { - $line = fgets($f,1024); - $matches = array(); - if (!preg_match('/^\s*(\(.+?),(\d)\)/', $line, $matches)) continue; - $this->query("$sql $matches[1],$matches[2])"); - } - } - -} - -/** - * @ingroup Database - */ -class MSSQLField extends MySQLField { - - function __construct() { - } - - static function fromText($db, $table, $field) { - $n = new MSSQLField; - $n->name = $field; - $n->tablename = $table; - return $n; - } - -} // end DatabaseMssql class - diff --git a/includes/DatabaseOracle.php b/includes/DatabaseOracle.php deleted file mode 100644 index 8d2a6750dc..0000000000 --- a/includes/DatabaseOracle.php +++ /dev/null @@ -1,710 +0,0 @@ -mData = $data; - } - - function getData() { - return $this->mData; - } -} - -/** - * The oci8 extension is fairly weak and doesn't support oci_num_rows, among - * other things. We use a wrapper class to handle that and other - * Oracle-specific bits, like converting column names back to lowercase. - * @ingroup Database - */ -class ORAResult { - private $rows; - private $cursor; - private $stmt; - private $nrows; - private $db; - - function __construct(&$db, $stmt) { - $this->db =& $db; - if (($this->nrows = oci_fetch_all($stmt, $this->rows, 0, -1, OCI_FETCHSTATEMENT_BY_ROW | OCI_NUM)) === false) { - $e = oci_error($stmt); - $db->reportQueryError($e['message'], $e['code'], '', __FUNCTION__); - return; - } - - $this->cursor = 0; - $this->stmt = $stmt; - } - - function free() { - oci_free_statement($this->stmt); - } - - function seek($row) { - $this->cursor = min($row, $this->nrows); - } - - function numRows() { - return $this->nrows; - } - - function numFields() { - return oci_num_fields($this->stmt); - } - - function fetchObject() { - if ($this->cursor >= $this->nrows) - return false; - - $row = $this->rows[$this->cursor++]; - $ret = new stdClass(); - foreach ($row as $k => $v) { - $lc = strtolower(oci_field_name($this->stmt, $k + 1)); - $ret->$lc = $v; - } - - return $ret; - } - - function fetchAssoc() { - if ($this->cursor >= $this->nrows) - return false; - - $row = $this->rows[$this->cursor++]; - $ret = array(); - foreach ($row as $k => $v) { - $lc = strtolower(oci_field_name($this->stmt, $k + 1)); - $ret[$lc] = $v; - $ret[$k] = $v; - } - return $ret; - } -} - -/** - * @ingroup Database - */ -class DatabaseOracle extends Database { - var $mInsertId = NULL; - var $mLastResult = NULL; - var $numeric_version = NULL; - var $lastResult = null; - var $cursor = 0; - var $mAffectedRows; - - function DatabaseOracle($server = false, $user = false, $password = false, $dbName = false, - $failFunction = false, $flags = 0 ) - { - - global $wgOut; - # Can't get a reference if it hasn't been set yet - if ( !isset( $wgOut ) ) { - $wgOut = NULL; - } - $this->mOut =& $wgOut; - $this->mFailFunction = $failFunction; - $this->mFlags = $flags; - $this->open( $server, $user, $password, $dbName); - - } - - function cascadingDeletes() { - return true; - } - function cleanupTriggers() { - return true; - } - function strictIPs() { - return true; - } - function realTimestamps() { - return true; - } - function implicitGroupby() { - return false; - } - function implicitOrderby() { - return false; - } - function searchableIPs() { - return true; - } - - static function newFromParams( $server = false, $user = false, $password = false, $dbName = false, - $failFunction = false, $flags = 0) - { - return new DatabaseOracle( $server, $user, $password, $dbName, $failFunction, $flags ); - } - - /** - * Usually aborts on failure - * If the failFunction is set to a non-zero integer, returns success - */ - function open( $server, $user, $password, $dbName ) { - if ( !function_exists( 'oci_connect' ) ) { - throw new DBConnectionError( $this, "Oracle functions missing, have you compiled PHP with the --with-oci8 option?\n (Note: if you recently installed PHP, you may need to restart your webserver and database)\n" ); - } - - # Needed for proper UTF-8 functionality - putenv("NLS_LANG=AMERICAN_AMERICA.AL32UTF8"); - - $this->close(); - $this->mServer = $server; - $this->mUser = $user; - $this->mPassword = $password; - $this->mDBname = $dbName; - - if (!strlen($user)) { ## e.g. the class is being loaded - return; - } - - error_reporting( E_ALL ); - $this->mConn = oci_connect($user, $password, $dbName); - - if ($this->mConn == false) { - wfDebug("DB connection error\n"); - wfDebug("Server: $server, Database: $dbName, User: $user, Password: " . substr( $password, 0, 3 ) . "...\n"); - wfDebug($this->lastError()."\n"); - return false; - } - - $this->mOpened = true; - return $this->mConn; - } - - /** - * Closes a database connection, if it is open - * Returns success, true if already closed - */ - function close() { - $this->mOpened = false; - if ( $this->mConn ) { - return oci_close( $this->mConn ); - } else { - return true; - } - } - - function execFlags() { - return $this->mTrxLevel ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS; - } - - function doQuery($sql) { - wfDebug("SQL: [$sql]\n"); - if (!mb_check_encoding($sql)) { - throw new MWException("SQL encoding is invalid"); - } - - if (($this->mLastResult = $stmt = oci_parse($this->mConn, $sql)) === false) { - $e = oci_error($this->mConn); - $this->reportQueryError($e['message'], $e['code'], $sql, __FUNCTION__); - } - - if (oci_execute($stmt, $this->execFlags()) == false) { - $e = oci_error($stmt); - $this->reportQueryError($e['message'], $e['code'], $sql, __FUNCTION__); - } - if (oci_statement_type($stmt) == "SELECT") - return new ORAResult($this, $stmt); - else { - $this->mAffectedRows = oci_num_rows($stmt); - return true; - } - } - - function queryIgnore($sql, $fname = '') { - return $this->query($sql, $fname, true); - } - - function freeResult($res) { - $res->free(); - } - - function fetchObject($res) { - return $res->fetchObject(); - } - - function fetchRow($res) { - return $res->fetchAssoc(); - } - - function numRows($res) { - return $res->numRows(); - } - - function numFields($res) { - return $res->numFields(); - } - - function fieldName($stmt, $n) { - return pg_field_name($stmt, $n); - } - - /** - * This must be called after nextSequenceVal - */ - function insertId() { - return $this->mInsertId; - } - - function dataSeek($res, $row) { - $res->seek($row); - } - - function lastError() { - if ($this->mConn === false) - $e = oci_error(); - else - $e = oci_error($this->mConn); - return $e['message']; - } - - function lastErrno() { - if ($this->mConn === false) - $e = oci_error(); - else - $e = oci_error($this->mConn); - return $e['code']; - } - - function affectedRows() { - return $this->mAffectedRows; - } - - /** - * Returns information about an index - * If errors are explicitly ignored, returns NULL on failure - */ - function indexInfo( $table, $index, $fname = 'Database::indexExists' ) { - return false; - } - - function indexUnique ($table, $index, $fname = 'Database::indexUnique' ) { - return false; - } - - function insert( $table, $a, $fname = 'Database::insert', $options = array() ) { - if (!is_array($options)) - $options = array($options); - - #if (in_array('IGNORE', $options)) - # $oldIgnore = $this->ignoreErrors(true); - - # IGNORE is performed using single-row inserts, ignoring errors in each - # FIXME: need some way to distiguish between key collision and other types of error - //$oldIgnore = $this->ignoreErrors(true); - if (!is_array(reset($a))) { - $a = array($a); - } - foreach ($a as $row) { - $this->insertOneRow($table, $row, $fname); - } - //$this->ignoreErrors($oldIgnore); - $retVal = true; - - //if (in_array('IGNORE', $options)) - // $this->ignoreErrors($oldIgnore); - - return $retVal; - } - - function insertOneRow($table, $row, $fname) { - // "INSERT INTO tables (a, b, c)" - $sql = "INSERT INTO " . $this->tableName($table) . " (" . join(',', array_keys($row)) . ')'; - $sql .= " VALUES ("; - - // for each value, append ":key" - $first = true; - $returning = ''; - foreach ($row as $col => $val) { - if (is_object($val)) { - $what = "EMPTY_BLOB()"; - assert($returning === ''); - $returning = " RETURNING $col INTO :bval"; - $blobcol = $col; - } else - $what = ":$col"; - - if ($first) - $sql .= "$what"; - else - $sql.= ", $what"; - $first = false; - } - $sql .= ") $returning"; - - $stmt = oci_parse($this->mConn, $sql); - foreach ($row as $col => $val) { - if (!is_object($val)) { - if (oci_bind_by_name($stmt, ":$col", $row[$col]) === false) - $this->reportQueryError($this->lastErrno(), $this->lastError(), $sql, __METHOD__); - } - } - - if (($bval = oci_new_descriptor($this->mConn, OCI_D_LOB)) === false) { - $e = oci_error($stmt); - throw new DBUnexpectedError($this, "Cannot create LOB descriptor: " . $e['message']); - } - - if (strlen($returning)) - oci_bind_by_name($stmt, ":bval", $bval, -1, SQLT_BLOB); - - if (oci_execute($stmt, OCI_DEFAULT) === false) { - $e = oci_error($stmt); - $this->reportQueryError($e['message'], $e['code'], $sql, __METHOD__); - } - if (strlen($returning)) { - $bval->save($row[$blobcol]->getData()); - $bval->free(); - } - if (!$this->mTrxLevel) - oci_commit($this->mConn); - - oci_free_statement($stmt); - } - - function tableName( $name ) { - # Replace reserved words with better ones - switch( $name ) { - case 'user': - return 'mwuser'; - case 'text': - return 'pagecontent'; - default: - return $name; - } - } - - /** - * Return the next in a sequence, save the value for retrieval via insertId() - */ - function nextSequenceValue($seqName) { - $res = $this->query("SELECT $seqName.nextval FROM dual"); - $row = $this->fetchRow($res); - $this->mInsertId = $row[0]; - $this->freeResult($res); - return $this->mInsertId; - } - - /** - * Oracle does not have a "USE INDEX" clause, so return an empty string - */ - function useIndexClause($index) { - return ''; - } - - # REPLACE query wrapper - # Oracle simulates this with a DELETE followed by INSERT - # $row is the row to insert, an associative array - # $uniqueIndexes is an array of indexes. Each element may be either a - # field name or an array of field names - # - # It may be more efficient to leave off unique indexes which are unlikely to collide. - # However if you do this, you run the risk of encountering errors which wouldn't have - # occurred in MySQL - function replace( $table, $uniqueIndexes, $rows, $fname = 'Database::replace' ) { - $table = $this->tableName($table); - - if (count($rows)==0) { - return; - } - - # Single row case - if (!is_array(reset($rows))) { - $rows = array($rows); - } - - foreach( $rows as $row ) { - # Delete rows which collide - if ( $uniqueIndexes ) { - $sql = "DELETE FROM $table WHERE "; - $first = true; - foreach ( $uniqueIndexes as $index ) { - if ( $first ) { - $first = false; - $sql .= "("; - } else { - $sql .= ') OR ('; - } - if ( is_array( $index ) ) { - $first2 = true; - foreach ( $index as $col ) { - if ( $first2 ) { - $first2 = false; - } else { - $sql .= ' AND '; - } - $sql .= $col.'=' . $this->addQuotes( $row[$col] ); - } - } else { - $sql .= $index.'=' . $this->addQuotes( $row[$index] ); - } - } - $sql .= ')'; - $this->query( $sql, $fname ); - } - - # Now insert the row - $sql = "INSERT INTO $table (" . $this->makeList( array_keys( $row ), LIST_NAMES ) .') VALUES (' . - $this->makeList( $row, LIST_COMMA ) . ')'; - $this->query($sql, $fname); - } - } - - # DELETE where the condition is a join - function deleteJoin( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname = "Database::deleteJoin" ) { - if ( !$conds ) { - throw new DBUnexpectedError($this, 'Database::deleteJoin() called with empty $conds' ); - } - - $delTable = $this->tableName( $delTable ); - $joinTable = $this->tableName( $joinTable ); - $sql = "DELETE FROM $delTable WHERE $delVar IN (SELECT $joinVar FROM $joinTable "; - if ( $conds != '*' ) { - $sql .= 'WHERE ' . $this->makeList( $conds, LIST_AND ); - } - $sql .= ')'; - - $this->query( $sql, $fname ); - } - - # Returns the size of a text field, or -1 for "unlimited" - function textFieldSize( $table, $field ) { - $table = $this->tableName( $table ); - $sql = "SELECT t.typname as ftype,a.atttypmod as size - FROM pg_class c, pg_attribute a, pg_type t - WHERE relname='$table' AND a.attrelid=c.oid AND - a.atttypid=t.oid and a.attname='$field'"; - $res =$this->query($sql); - $row=$this->fetchObject($res); - if ($row->ftype=="varchar") { - $size=$row->size-4; - } else { - $size=$row->size; - } - $this->freeResult( $res ); - return $size; - } - - function lowPriorityOption() { - return ''; - } - - function limitResult($sql, $limit, $offset) { - if ($offset === false) - $offset = 0; - return "SELECT * FROM ($sql) WHERE rownum >= (1 + $offset) AND rownum < 1 + $limit + $offset"; - } - - /** - * Returns an SQL expression for a simple conditional. - * Uses CASE on Oracle - * - * @param string $cond SQL expression which will result in a boolean value - * @param string $trueVal SQL expression to return if true - * @param string $falseVal SQL expression to return if false - * @return string SQL fragment - */ - function conditional( $cond, $trueVal, $falseVal ) { - return " (CASE WHEN $cond THEN $trueVal ELSE $falseVal END) "; - } - - function wasDeadlock() { - return $this->lastErrno() == 'OCI-00060'; - } - - function timestamp($ts = 0) { - return wfTimestamp(TS_ORACLE, $ts); - } - - /** - * Return aggregated value function call - */ - function aggregateValue ($valuedata,$valuename='value') { - return $valuedata; - } - - function reportQueryError($error, $errno, $sql, $fname, $tempIgnore = false) { - # Ignore errors during error handling to avoid infinite - # recursion - $ignore = $this->ignoreErrors(true); - ++$this->mErrorCount; - - if ($ignore || $tempIgnore) { -echo "error ignored! query = [$sql]\n"; - wfDebug("SQL ERROR (ignored): $error\n"); - $this->ignoreErrors( $ignore ); - } - else { -echo "error!\n"; - $message = "A database error has occurred\n" . - "Query: $sql\n" . - "Function: $fname\n" . - "Error: $errno $error\n"; - throw new DBUnexpectedError($this, $message); - } - } - - /** - * @return string wikitext of a link to the server software's web site - */ - function getSoftwareLink() { - return "[http://www.oracle.com/ Oracle]"; - } - - /** - * @return string Version information from the database - */ - function getServerVersion() { - return oci_server_version($this->mConn); - } - - /** - * Query whether a given table exists (in the given schema, or the default mw one if not given) - */ - function tableExists($table) { - $etable= $this->addQuotes($table); - $SQL = "SELECT 1 FROM user_tables WHERE table_name='$etable'"; - $res = $this->query($SQL); - $count = $res ? oci_num_rows($res) : 0; - if ($res) - $this->freeResult($res); - return $count; - } - - /** - * Query whether a given column exists in the mediawiki schema - */ - function fieldExists( $table, $field ) { - return true; // XXX - } - - function fieldInfo( $table, $field ) { - return false; // XXX - } - - function begin( $fname = '' ) { - $this->mTrxLevel = 1; - } - function immediateCommit( $fname = '' ) { - return true; - } - function commit( $fname = '' ) { - oci_commit($this->mConn); - $this->mTrxLevel = 0; - } - - /* Not even sure why this is used in the main codebase... */ - function limitResultForUpdate($sql, $num) { - return $sql; - } - - function strencode($s) { - return str_replace("'", "''", $s); - } - - function encodeBlob($b) { - return new ORABlob($b); - } - function decodeBlob($b) { - return $b; //return $b->load(); - } - - function addQuotes( $s ) { - global $wgLang; - $s = $wgLang->checkTitleEncoding($s); - return "'" . $this->strencode($s) . "'"; - } - - function quote_ident( $s ) { - return $s; - } - - /* For now, does nothing */ - function selectDB( $db ) { - return true; - } - - /** - * Returns an optional USE INDEX clause to go after the table, and a - * string to go at the end of the query - * - * @private - * - * @param array $options an associative array of options to be turned into - * an SQL query, valid keys are listed in the function. - * @return array - */ - function makeSelectOptions( $options ) { - $preLimitTail = $postLimitTail = ''; - $startOpts = ''; - - $noKeyOptions = array(); - foreach ( $options as $key => $option ) { - if ( is_numeric( $key ) ) { - $noKeyOptions[$option] = true; - } - } - - if ( isset( $options['GROUP BY'] ) ) $preLimitTail .= " GROUP BY {$options['GROUP BY']}"; - if ( isset( $options['ORDER BY'] ) ) $preLimitTail .= " ORDER BY {$options['ORDER BY']}"; - - if (isset($options['LIMIT'])) { - // $tailOpts .= $this->limitResult('', $options['LIMIT'], - // isset($options['OFFSET']) ? $options['OFFSET'] - // : false); - } - - #if ( isset( $noKeyOptions['FOR UPDATE'] ) ) $tailOpts .= ' FOR UPDATE'; - #if ( isset( $noKeyOptions['LOCK IN SHARE MODE'] ) ) $tailOpts .= ' LOCK IN SHARE MODE'; - if ( isset( $noKeyOptions['DISTINCT'] ) || isset( $noKeyOptions['DISTINCTROW'] ) ) $startOpts .= 'DISTINCT'; - - if ( isset( $options['USE INDEX'] ) && ! is_array( $options['USE INDEX'] ) ) { - $useIndex = $this->useIndexClause( $options['USE INDEX'] ); - } else { - $useIndex = ''; - } - - return array( $startOpts, $useIndex, $preLimitTail, $postLimitTail ); - } - - public function setTimeout( $timeout ) { - // @todo fixme no-op - } - - function ping() { - wfDebug( "Function ping() not written for DatabaseOracle.php yet"); - return true; - } - - /** - * How lagged is this slave? - * - * @return int - */ - public function getLag() { - # Not implemented for Oracle - return 0; - } - - function setFakeSlaveLag() {} - function setFakeMaster() {} - - function getDBname() { - return $this->mDBname; - } - - function getServer() { - return $this->mServer; - } - -} // end DatabaseOracle class diff --git a/includes/DatabasePostgres.php b/includes/DatabasePostgres.php deleted file mode 100644 index 8f8488b9ae..0000000000 --- a/includes/DatabasePostgres.php +++ /dev/null @@ -1,1330 +0,0 @@ -query(sprintf($q, - $db->addQuotes($wgDBmwschema), - $db->addQuotes($table), - $db->addQuotes($field))); - $row = $db->fetchObject($res); - if (!$row) - return null; - $n = new PostgresField; - $n->type = $row->typname; - $n->nullable = ($row->attnotnull == 'f'); - $n->name = $field; - $n->tablename = $table; - $n->max_length = $row->attlen; - return $n; - } - - function name() { - return $this->name; - } - - function tableName() { - return $this->tablename; - } - - function type() { - return $this->type; - } - - function nullable() { - return $this->nullable; - } - - function maxLength() { - return $this->max_length; - } -} - -/** - * @ingroup Database - */ -class DatabasePostgres extends Database { - var $mInsertId = NULL; - var $mLastResult = NULL; - var $numeric_version = NULL; - - function DatabasePostgres($server = false, $user = false, $password = false, $dbName = false, - $failFunction = false, $flags = 0 ) - { - - global $wgOut; - # Can't get a reference if it hasn't been set yet - if ( !isset( $wgOut ) ) { - $wgOut = NULL; - } - $this->mOut =& $wgOut; - $this->mFailFunction = $failFunction; - $this->mFlags = $flags; - $this->open( $server, $user, $password, $dbName); - - } - - function cascadingDeletes() { - return true; - } - function cleanupTriggers() { - return true; - } - function strictIPs() { - return true; - } - function realTimestamps() { - return true; - } - function implicitGroupby() { - return false; - } - function implicitOrderby() { - return false; - } - function searchableIPs() { - return true; - } - function functionalIndexes() { - return true; - } - - function hasConstraint( $name ) { - global $wgDBmwschema; - $SQL = "SELECT 1 FROM pg_catalog.pg_constraint c, pg_catalog.pg_namespace n WHERE c.connamespace = n.oid AND conname = '" . pg_escape_string( $name ) . "' AND n.nspname = '" . pg_escape_string($wgDBmwschema) ."'"; - return $this->numRows($res = $this->doQuery($SQL)); - } - - static function newFromParams( $server, $user, $password, $dbName, $failFunction = false, $flags = 0) - { - return new DatabasePostgres( $server, $user, $password, $dbName, $failFunction, $flags ); - } - - /** - * Usually aborts on failure - * If the failFunction is set to a non-zero integer, returns success - */ - function open( $server, $user, $password, $dbName ) { - # Test for Postgres support, to avoid suppressed fatal error - if ( !function_exists( 'pg_connect' ) ) { - throw new DBConnectionError( $this, "Postgres functions missing, have you compiled PHP with the --with-pgsql option?\n (Note: if you recently installed PHP, you may need to restart your webserver and database)\n" ); - } - - global $wgDBport; - - if (!strlen($user)) { ## e.g. the class is being loaded - return; - } - - $this->close(); - $this->mServer = $server; - $this->mPort = $port = $wgDBport; - $this->mUser = $user; - $this->mPassword = $password; - $this->mDBname = $dbName; - - $hstring=""; - if ($server!=false && $server!="") { - $hstring="host=$server "; - } - if ($port!=false && $port!="") { - $hstring .= "port=$port "; - } - - error_reporting( E_ALL ); - @$this->mConn = pg_connect("$hstring dbname=$dbName user=$user password=$password"); - - if ( $this->mConn == false ) { - wfDebug( "DB connection error\n" ); - wfDebug( "Server: $server, Database: $dbName, User: $user, Password: " . substr( $password, 0, 3 ) . "...\n" ); - wfDebug( $this->lastError()."\n" ); - return false; - } - - $this->mOpened = true; - - global $wgCommandLineMode; - ## If called from the command-line (e.g. importDump), only show errors - if ($wgCommandLineMode) { - $this->doQuery("SET client_min_messages = 'ERROR'"); - } - - global $wgDBmwschema, $wgDBts2schema; - if (isset( $wgDBmwschema ) && isset( $wgDBts2schema ) - && $wgDBmwschema !== 'mediawiki' - && preg_match( '/^\w+$/', $wgDBmwschema ) - && preg_match( '/^\w+$/', $wgDBts2schema ) - ) { - $safeschema = $this->quote_ident($wgDBmwschema); - $safeschema2 = $this->quote_ident($wgDBts2schema); - $this->doQuery("SET search_path = $safeschema, $wgDBts2schema, public"); - } - - return $this->mConn; - } - - - function initial_setup($password, $dbName) { - // If this is the initial connection, setup the schema stuff and possibly create the user - global $wgDBname, $wgDBuser, $wgDBpassword, $wgDBsuperuser, $wgDBmwschema, $wgDBts2schema; - - print "
  • Checking the version of Postgres..."; - $version = $this->getServerVersion(); - $PGMINVER = '8.1'; - if ($this->numeric_version < $PGMINVER) { - print "FAILED. Required version is $PGMINVER. You have $this->numeric_version ($version)
    • \n"; - dieout(""); - } - print "version $this->numeric_version is OK.\n"; - - $safeuser = $this->quote_ident($wgDBuser); - // Are we connecting as a superuser for the first time? - if ($wgDBsuperuser) { - // Are we really a superuser? Check out our rights - $SQL = "SELECT - CASE WHEN usesuper IS TRUE THEN - CASE WHEN usecreatedb IS TRUE THEN 3 ELSE 1 END - ELSE CASE WHEN usecreatedb IS TRUE THEN 2 ELSE 0 END - END AS rights - FROM pg_catalog.pg_user WHERE usename = " . $this->addQuotes($wgDBsuperuser); - $rows = $this->numRows($res = $this->doQuery($SQL)); - if (!$rows) { - print "
  • ERROR: Could not read permissions for user \"$wgDBsuperuser\"
    • \n"; - dieout(''); - } - $perms = pg_fetch_result($res, 0, 0); - - $SQL = "SELECT 1 FROM pg_catalog.pg_user WHERE usename = " . $this->addQuotes($wgDBuser); - $rows = $this->numRows($this->doQuery($SQL)); - if ($rows) { - print "
  • User \"$wgDBuser\" already exists, skipping account creation.
    • "; - } - else { - if ($perms != 1 and $perms != 3) { - print "
  • ERROR: the user \"$wgDBsuperuser\" cannot create other users. "; - print 'Please use a different Postgres user.
    • '; - dieout(''); - } - print "
  • Creating user $wgDBuser..."; - $safepass = $this->addQuotes($wgDBpassword); - $SQL = "CREATE USER $safeuser NOCREATEDB PASSWORD $safepass"; - $this->doQuery($SQL); - print "OK
    • \n"; - } - // User now exists, check out the database - if ($dbName != $wgDBname) { - $SQL = "SELECT 1 FROM pg_catalog.pg_database WHERE datname = " . $this->addQuotes($wgDBname); - $rows = $this->numRows($this->doQuery($SQL)); - if ($rows) { - print "
  • Database \"$wgDBname\" already exists, skipping database creation.
    • "; - } - else { - if ($perms < 2) { - print "
  • ERROR: the user \"$wgDBsuperuser\" cannot create databases. "; - print 'Please use a different Postgres user.
    • '; - dieout(''); - } - print "
  • Creating database $wgDBname..."; - $safename = $this->quote_ident($wgDBname); - $SQL = "CREATE DATABASE $safename OWNER $safeuser "; - $this->doQuery($SQL); - print "OK
    • \n"; - // Hopefully tsearch2 and plpgsql are in template1... - } - - // Reconnect to check out tsearch2 rights for this user - print "
  • Connecting to \"$wgDBname\" as superuser \"$wgDBsuperuser\" to check rights..."; - - $hstring=""; - if ($this->mServer!=false && $this->mServer!="") { - $hstring="host=$this->mServer "; - } - if ($this->mPort!=false && $this->mPort!="") { - $hstring .= "port=$this->mPort "; - } - - @$this->mConn = pg_connect("$hstring dbname=$wgDBname user=$wgDBsuperuser password=$password"); - if ( $this->mConn == false ) { - print "FAILED TO CONNECT!
    • "; - dieout(""); - } - print "OK\n"; - } - - if ($this->numeric_version < 8.3) { - // Tsearch2 checks - print "
  • Checking that tsearch2 is installed in the database \"$wgDBname\"..."; - if (! $this->tableExists("pg_ts_cfg", $wgDBts2schema)) { - print "FAILED. tsearch2 must be installed in the database \"$wgDBname\"."; - print "Please see this article"; - print " for instructions or ask on #postgresql on irc.freenode.net
    • \n"; - dieout(""); - } - print "OK\n"; - print "
  • Ensuring that user \"$wgDBuser\" has select rights on the tsearch2 tables..."; - foreach (array('cfg','cfgmap','dict','parser') as $table) { - $SQL = "GRANT SELECT ON pg_ts_$table TO $safeuser"; - $this->doQuery($SQL); - } - print "OK
    • \n"; - } - - // Setup the schema for this user if needed - $result = $this->schemaExists($wgDBmwschema); - $safeschema = $this->quote_ident($wgDBmwschema); - if (!$result) { - print "
  • Creating schema $wgDBmwschema ..."; - $result = $this->doQuery("CREATE SCHEMA $safeschema AUTHORIZATION $safeuser"); - if (!$result) { - print "FAILED.
    • \n"; - dieout(""); - } - print "OK\n"; - } - else { - print "
  • Schema already exists, explicitly granting rights...\n"; - $safeschema2 = $this->addQuotes($wgDBmwschema); - $SQL = "SELECT 'GRANT ALL ON '||pg_catalog.quote_ident(relname)||' TO $safeuser;'\n". - "FROM pg_catalog.pg_class p, pg_catalog.pg_namespace n\n". - "WHERE relnamespace = n.oid AND n.nspname = $safeschema2\n". - "AND p.relkind IN ('r','S','v')\n"; - $SQL .= "UNION\n"; - $SQL .= "SELECT 'GRANT ALL ON FUNCTION '||pg_catalog.quote_ident(proname)||'('||\n". - "pg_catalog.oidvectortypes(p.proargtypes)||') TO $safeuser;'\n". - "FROM pg_catalog.pg_proc p, pg_catalog.pg_namespace n\n". - "WHERE p.pronamespace = n.oid AND n.nspname = $safeschema2"; - $res = $this->doQuery($SQL); - if (!$res) { - print "FAILED. Could not set rights for the user.
    • \n"; - dieout(""); - } - $this->doQuery("SET search_path = $safeschema"); - $rows = $this->numRows($res); - while ($rows) { - $rows--; - $this->doQuery(pg_fetch_result($res, $rows, 0)); - } - print "OK"; - } - - // Install plpgsql if needed - $this->setup_plpgsql(); - - $wgDBsuperuser = ''; - return true; // Reconnect as regular user - - } // end superuser - - if (!defined('POSTGRES_SEARCHPATH')) { - - if ($this->numeric_version < 8.3) { - // Do we have the basic tsearch2 table? - print "
  • Checking for tsearch2 in the schema \"$wgDBts2schema\"..."; - if (! $this->tableExists("pg_ts_dict", $wgDBts2schema)) { - print "FAILED. Make sure tsearch2 is installed. See this article"; - print " for instructions.
    • \n"; - dieout(""); - } - print "OK\n"; - - // Does this user have the rights to the tsearch2 tables? - $ctype = pg_fetch_result($this->doQuery("SHOW lc_ctype"),0,0); - print "
  • Checking tsearch2 permissions..."; - // Let's check all four, just to be safe - error_reporting( 0 ); - $ts2tables = array('cfg','cfgmap','dict','parser'); - $safetsschema = $this->quote_ident($wgDBts2schema); - foreach ( $ts2tables AS $tname ) { - $SQL = "SELECT count(*) FROM $safetsschema.pg_ts_$tname"; - $res = $this->doQuery($SQL); - if (!$res) { - print "FAILED to access pg_ts_$tname. Make sure that the user ". - "\"$wgDBuser\" has SELECT access to all four tsearch2 tables
    • \n"; - dieout(""); - } - } - $SQL = "SELECT ts_name FROM $safetsschema.pg_ts_cfg WHERE locale = '$ctype'"; - $SQL .= " ORDER BY CASE WHEN ts_name <> 'default' THEN 1 ELSE 0 END"; - $res = $this->doQuery($SQL); - error_reporting( E_ALL ); - if (!$res) { - print "FAILED. Could not determine the tsearch2 locale information\n"; - dieout(""); - } - print "OK"; - - // Will the current locale work? Can we force it to? - print "
  • Verifying tsearch2 locale with $ctype..."; - $rows = $this->numRows($res); - $resetlocale = 0; - if (!$rows) { - print "not found
    • \n"; - print "
  • Attempting to set default tsearch2 locale to \"$ctype\"..."; - $resetlocale = 1; - } - else { - $tsname = pg_fetch_result($res, 0, 0); - if ($tsname != 'default') { - print "not set to default ($tsname)"; - print "
  • Attempting to change tsearch2 default locale to \"$ctype\"..."; - $resetlocale = 1; - } - } - if ($resetlocale) { - $SQL = "UPDATE $safetsschema.pg_ts_cfg SET locale = '$ctype' WHERE ts_name = 'default'"; - $res = $this->doQuery($SQL); - if (!$res) { - print "FAILED. "; - print "Please make sure that the locale in pg_ts_cfg for \"default\" is set to \"$ctype\"
    • \n"; - dieout(""); - } - print "OK"; - } - - // Final test: try out a simple tsearch2 query - $SQL = "SELECT $safetsschema.to_tsvector('default','MediaWiki tsearch2 testing')"; - $res = $this->doQuery($SQL); - if (!$res) { - print "FAILED. Specifically, \"$SQL\" did not work."; - dieout(""); - } - print "OK"; - } - - // Install plpgsql if needed - $this->setup_plpgsql(); - - // Does the schema already exist? Who owns it? - $result = $this->schemaExists($wgDBmwschema); - if (!$result) { - print "
  • Creating schema $wgDBmwschema ..."; - error_reporting( 0 ); - $safeschema = $this->quote_ident($wgDBmwschema); - $result = $this->doQuery("CREATE SCHEMA $safeschema"); - error_reporting( E_ALL ); - if (!$result) { - print "FAILED. The user \"$wgDBuser\" must be able to access the schema. ". - "You can try making them the owner of the database, or try creating the schema with a ". - "different user, and then grant access to the \"$wgDBuser\" user.
    • \n"; - dieout(""); - } - print "OK\n"; - } - else if ($result != $wgDBuser) { - print "
  • Schema \"$wgDBmwschema\" exists but is not owned by \"$wgDBuser\". Not ideal.
    • \n"; - } - else { - print "
  • Schema \"$wgDBmwschema\" exists and is owned by \"$wgDBuser\". Excellent.
    • \n"; - } - - // Always return GMT time to accomodate the existing integer-based timestamp assumption - print "
  • Setting the timezone to GMT for user \"$wgDBuser\" ..."; - $SQL = "ALTER USER $safeuser SET timezone = 'GMT'"; - $result = pg_query($this->mConn, $SQL); - if (!$result) { - print "FAILED.
    • \n"; - dieout(""); - } - print "OK\n"; - // Set for the rest of this session - $SQL = "SET timezone = 'GMT'"; - $result = pg_query($this->mConn, $SQL); - if (!$result) { - print "
  • Failed to set timezone
    • \n"; - dieout(""); - } - - print "
  • Setting the datestyle to ISO, YMD for user \"$wgDBuser\" ..."; - $SQL = "ALTER USER $safeuser SET datestyle = 'ISO, YMD'"; - $result = pg_query($this->mConn, $SQL); - if (!$result) { - print "FAILED.
    • \n"; - dieout(""); - } - print "OK\n"; - // Set for the rest of this session - $SQL = "SET datestyle = 'ISO, YMD'"; - $result = pg_query($this->mConn, $SQL); - if (!$result) { - print "
  • Failed to set datestyle
    • \n"; - dieout(""); - } - - // Fix up the search paths if needed - print "
  • Setting the search path for user \"$wgDBuser\" ..."; - $path = $this->quote_ident($wgDBmwschema); - if ($wgDBts2schema !== $wgDBmwschema) - $path .= ", ". $this->quote_ident($wgDBts2schema); - if ($wgDBmwschema !== 'public' and $wgDBts2schema !== 'public') - $path .= ", public"; - $SQL = "ALTER USER $safeuser SET search_path = $path"; - $result = pg_query($this->mConn, $SQL); - if (!$result) { - print "FAILED.
    • \n"; - dieout(""); - } - print "OK\n"; - // Set for the rest of this session - $SQL = "SET search_path = $path"; - $result = pg_query($this->mConn, $SQL); - if (!$result) { - print "
  • Failed to set search_path
    • \n"; - dieout(""); - } - define( "POSTGRES_SEARCHPATH", $path ); - } - } - - - function setup_plpgsql() { - print "
  • Checking for Pl/Pgsql ..."; - $SQL = "SELECT 1 FROM pg_catalog.pg_language WHERE lanname = 'plpgsql'"; - $rows = $this->numRows($this->doQuery($SQL)); - if ($rows < 1) { - // plpgsql is not installed, but if we have a pg_pltemplate table, we should be able to create it - print "not installed. Attempting to install Pl/Pgsql ..."; - $SQL = "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON (n.oid = c.relnamespace) ". - "WHERE relname = 'pg_pltemplate' AND nspname='pg_catalog'"; - $rows = $this->numRows($this->doQuery($SQL)); - if ($rows >= 1) { - $olde = error_reporting(0); - error_reporting($olde - E_WARNING); - $result = $this->doQuery("CREATE LANGUAGE plpgsql"); - error_reporting($olde); - if (!$result) { - print "FAILED. You need to install the language plpgsql in the database $wgDBname
    • "; - dieout(""); - } - } - else { - print "FAILED. You need to install the language plpgsql in the database $wgDBname"; - dieout(""); - } - } - print "OK\n"; - } - - - /** - * Closes a database connection, if it is open - * Returns success, true if already closed - */ - function close() { - $this->mOpened = false; - if ( $this->mConn ) { - return pg_close( $this->mConn ); - } else { - return true; - } - } - - function doQuery( $sql ) { - if (function_exists('mb_convert_encoding')) { - return $this->mLastResult=pg_query( $this->mConn , mb_convert_encoding($sql,'UTF-8') ); - } - return $this->mLastResult=pg_query( $this->mConn , $sql); - } - - function queryIgnore( $sql, $fname = '' ) { - return $this->query( $sql, $fname, true ); - } - - function freeResult( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - if ( !@pg_free_result( $res ) ) { - throw new DBUnexpectedError($this, "Unable to free Postgres result\n" ); - } - } - - function fetchObject( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @$row = pg_fetch_object( $res ); - # FIXME: HACK HACK HACK HACK debug - - # TODO: - # hashar : not sure if the following test really trigger if the object - # fetching failed. - if( pg_last_error($this->mConn) ) { - throw new DBUnexpectedError($this, 'SQL error: ' . htmlspecialchars( pg_last_error($this->mConn) ) ); - } - return $row; - } - - function fetchRow( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @$row = pg_fetch_array( $res ); - if( pg_last_error($this->mConn) ) { - throw new DBUnexpectedError($this, 'SQL error: ' . htmlspecialchars( pg_last_error($this->mConn) ) ); - } - return $row; - } - - function numRows( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - @$n = pg_num_rows( $res ); - if( pg_last_error($this->mConn) ) { - throw new DBUnexpectedError($this, 'SQL error: ' . htmlspecialchars( pg_last_error($this->mConn) ) ); - } - return $n; - } - function numFields( $res ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return pg_num_fields( $res ); - } - function fieldName( $res, $n ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return pg_field_name( $res, $n ); - } - - /** - * This must be called after nextSequenceVal - */ - function insertId() { - return $this->mInsertId; - } - - function dataSeek( $res, $row ) { - if ( $res instanceof ResultWrapper ) { - $res = $res->result; - } - return pg_result_seek( $res, $row ); - } - - function lastError() { - if ( $this->mConn ) { - return pg_last_error(); - } - else { - return "No database connection"; - } - } - function lastErrno() { - return pg_last_error() ? 1 : 0; - } - - function affectedRows() { - if( !isset( $this->mLastResult ) or ! $this->mLastResult ) - return 0; - - return pg_affected_rows( $this->mLastResult ); - } - - /** - * Estimate rows in dataset - * Returns estimated count, based on EXPLAIN output - * This is not necessarily an accurate estimate, so use sparingly - * Returns -1 if count cannot be found - * Takes same arguments as Database::select() - */ - - function estimateRowCount( $table, $vars='*', $conds='', $fname = 'Database::estimateRowCount', $options = array() ) { - $options['EXPLAIN'] = true; - $res = $this->select( $table, $vars, $conds, $fname, $options ); - $rows = -1; - if ( $res ) { - $row = $this->fetchRow( $res ); - $count = array(); - if( preg_match( '/rows=(\d+)/', $row[0], $count ) ) { - $rows = $count[1]; - } - $this->freeResult($res); - } - return $rows; - } - - - /** - * Returns information about an index - * If errors are explicitly ignored, returns NULL on failure - */ - function indexInfo( $table, $index, $fname = 'Database::indexExists' ) { - $sql = "SELECT indexname FROM pg_indexes WHERE tablename='$table'"; - $res = $this->query( $sql, $fname ); - if ( !$res ) { - return NULL; - } - while ( $row = $this->fetchObject( $res ) ) { - if ( $row->indexname == $index ) { - return $row; - } - } - return false; - } - - function indexUnique ($table, $index, $fname = 'Database::indexUnique' ) { - $sql = "SELECT indexname FROM pg_indexes WHERE tablename='{$table}'". - " AND indexdef LIKE 'CREATE UNIQUE%({$index})'"; - $res = $this->query( $sql, $fname ); - if ( !$res ) - return NULL; - while ($row = $this->fetchObject( $res )) - return true; - return false; - - } - - /** - * INSERT wrapper, inserts an array into a table - * - * $args may be a single associative array, or an array of these with numeric keys, - * for multi-row insert (Postgres version 8.2 and above only). - * - * @param array $table String: Name of the table to insert to. - * @param array $args Array: Items to insert into the table. - * @param array $fname String: Name of the function, for profiling - * @param mixed $options String or Array. Valid options: IGNORE - * - * @return bool Success of insert operation. IGNORE always returns true. - */ - function insert( $table, $args, $fname = 'DatabasePostgres::insert', $options = array() ) { - global $wgDBversion; - - if ( !count( $args ) ) { - return true; - } - - $table = $this->tableName( $table ); - if (! isset( $wgDBversion ) ) { - $this->getServerVersion(); - $wgDBversion = $this->numeric_version; - } - - if ( !is_array( $options ) ) - $options = array( $options ); - - if ( isset( $args[0] ) && is_array( $args[0] ) ) { - $multi = true; - $keys = array_keys( $args[0] ); - } - else { - $multi = false; - $keys = array_keys( $args ); - } - - $ignore = in_array( 'IGNORE', $options ) ? 1 : 0; - if ( $ignore ) - $olde = error_reporting( 0 ); - - $sql = "INSERT INTO $table (" . implode( ',', $keys ) . ') VALUES '; - - if ( $multi ) { - if ( $wgDBversion >= 8.2 ) { - $first = true; - foreach ( $args as $row ) { - if ( $first ) { - $first = false; - } else { - $sql .= ','; - } - $sql .= '(' . $this->makeList( $row ) . ')'; - } - $res = (bool)$this->query( $sql, $fname, $ignore ); - } - else { - $res = true; - $origsql = $sql; - foreach ( $args as $row ) { - $tempsql = $origsql; - $tempsql .= '(' . $this->makeList( $row ) . ')'; - $tempres = (bool)$this->query( $tempsql, $fname, $ignore ); - if (! $tempres) - $res = false; - } - } - } - else { - $sql .= '(' . $this->makeList( $args ) . ')'; - $res = (bool)$this->query( $sql, $fname, $ignore ); - } - - if ( $ignore ) { - $olde = error_reporting( $olde ); - return true; - } - - return $res; - - } - - function tableName( $name ) { - # Replace reserved words with better ones - switch( $name ) { - case 'user': - return 'mwuser'; - case 'text': - return 'pagecontent'; - default: - return $name; - } - } - - /** - * Return the next in a sequence, save the value for retrieval via insertId() - */ - function nextSequenceValue( $seqName ) { - $safeseq = preg_replace( "/'/", "''", $seqName ); - $res = $this->query( "SELECT nextval('$safeseq')" ); - $row = $this->fetchRow( $res ); - $this->mInsertId = $row[0]; - $this->freeResult( $res ); - return $this->mInsertId; - } - - /** - * Return the current value of a sequence. Assumes it has ben nextval'ed in this session. - */ - function currentSequenceValue( $seqName ) { - $safeseq = preg_replace( "/'/", "''", $seqName ); - $res = $this->query( "SELECT currval('$safeseq')" ); - $row = $this->fetchRow( $res ); - $currval = $row[0]; - $this->freeResult( $res ); - return $currval; - } - - /** - * Postgres does not have a "USE INDEX" clause, so return an empty string - */ - function useIndexClause( $index ) { - return ''; - } - - # REPLACE query wrapper - # Postgres simulates this with a DELETE followed by INSERT - # $row is the row to insert, an associative array - # $uniqueIndexes is an array of indexes. Each element may be either a - # field name or an array of field names - # - # It may be more efficient to leave off unique indexes which are unlikely to collide. - # However if you do this, you run the risk of encountering errors which wouldn't have - # occurred in MySQL - function replace( $table, $uniqueIndexes, $rows, $fname = 'Database::replace' ) { - $table = $this->tableName( $table ); - - if (count($rows)==0) { - return; - } - - # Single row case - if ( !is_array( reset( $rows ) ) ) { - $rows = array( $rows ); - } - - foreach( $rows as $row ) { - # Delete rows which collide - if ( $uniqueIndexes ) { - $sql = "DELETE FROM $table WHERE "; - $first = true; - foreach ( $uniqueIndexes as $index ) { - if ( $first ) { - $first = false; - $sql .= "("; - } else { - $sql .= ') OR ('; - } - if ( is_array( $index ) ) { - $first2 = true; - foreach ( $index as $col ) { - if ( $first2 ) { - $first2 = false; - } else { - $sql .= ' AND '; - } - $sql .= $col.'=' . $this->addQuotes( $row[$col] ); - } - } else { - $sql .= $index.'=' . $this->addQuotes( $row[$index] ); - } - } - $sql .= ')'; - $this->query( $sql, $fname ); - } - - # Now insert the row - $sql = "INSERT INTO $table (" . $this->makeList( array_keys( $row ), LIST_NAMES ) .') VALUES (' . - $this->makeList( $row, LIST_COMMA ) . ')'; - $this->query( $sql, $fname ); - } - } - - # DELETE where the condition is a join - function deleteJoin( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname = "Database::deleteJoin" ) { - if ( !$conds ) { - throw new DBUnexpectedError($this, 'Database::deleteJoin() called with empty $conds' ); - } - - $delTable = $this->tableName( $delTable ); - $joinTable = $this->tableName( $joinTable ); - $sql = "DELETE FROM $delTable WHERE $delVar IN (SELECT $joinVar FROM $joinTable "; - if ( $conds != '*' ) { - $sql .= 'WHERE ' . $this->makeList( $conds, LIST_AND ); - } - $sql .= ')'; - - $this->query( $sql, $fname ); - } - - # Returns the size of a text field, or -1 for "unlimited" - function textFieldSize( $table, $field ) { - $table = $this->tableName( $table ); - $sql = "SELECT t.typname as ftype,a.atttypmod as size - FROM pg_class c, pg_attribute a, pg_type t - WHERE relname='$table' AND a.attrelid=c.oid AND - a.atttypid=t.oid and a.attname='$field'"; - $res =$this->query($sql); - $row=$this->fetchObject($res); - if ($row->ftype=="varchar") { - $size=$row->size-4; - } else { - $size=$row->size; - } - $this->freeResult( $res ); - return $size; - } - - function lowPriorityOption() { - return ''; - } - - function limitResult($sql, $limit, $offset=false) { - return "$sql LIMIT $limit ".(is_numeric($offset)?" OFFSET {$offset} ":""); - } - - /** - * Returns an SQL expression for a simple conditional. - * Uses CASE on Postgres - * - * @param string $cond SQL expression which will result in a boolean value - * @param string $trueVal SQL expression to return if true - * @param string $falseVal SQL expression to return if false - * @return string SQL fragment - */ - function conditional( $cond, $trueVal, $falseVal ) { - return " (CASE WHEN $cond THEN $trueVal ELSE $falseVal END) "; - } - - function wasDeadlock() { - return $this->lastErrno() == '40P01'; - } - - function timestamp( $ts=0 ) { - return wfTimestamp(TS_POSTGRES,$ts); - } - - /** - * Return aggregated value function call - */ - function aggregateValue ($valuedata,$valuename='value') { - return $valuedata; - } - - - function reportQueryError( $error, $errno, $sql, $fname, $tempIgnore = false ) { - // Ignore errors during error handling to avoid infinite recursion - $ignore = $this->ignoreErrors( true ); - $this->mErrorCount++; - - if ($ignore || $tempIgnore) { - wfDebug("SQL ERROR (ignored): $error\n"); - $this->ignoreErrors( $ignore ); - } - else { - $message = "A database error has occurred\n" . - "Query: $sql\n" . - "Function: $fname\n" . - "Error: $errno $error\n"; - throw new DBUnexpectedError($this, $message); - } - } - - /** - * @return string wikitext of a link to the server software's web site - */ - function getSoftwareLink() { - return "[http://www.postgresql.org/ PostgreSQL]"; - } - - /** - * @return string Version information from the database - */ - function getServerVersion() { - $version = pg_fetch_result($this->doQuery("SELECT version()"),0,0); - $thisver = array(); - if (!preg_match('/PostgreSQL (\d+\.\d+)(\S+)/', $version, $thisver)) { - die("Could not determine the numeric version from $version!"); - } - $this->numeric_version = $thisver[1]; - return $version; - } - - - /** - * Query whether a given relation exists (in the given schema, or the - * default mw one if not given) - */ - function relationExists( $table, $types, $schema = false ) { - global $wgDBmwschema; - if (!is_array($types)) - $types = array($types); - if (! $schema ) - $schema = $wgDBmwschema; - $etable = $this->addQuotes($table); - $eschema = $this->addQuotes($schema); - $SQL = "SELECT 1 FROM pg_catalog.pg_class c, pg_catalog.pg_namespace n " - . "WHERE c.relnamespace = n.oid AND c.relname = $etable AND n.nspname = $eschema " - . "AND c.relkind IN ('" . implode("','", $types) . "')"; - $res = $this->query( $SQL ); - $count = $res ? $res->numRows() : 0; - if ($res) - $this->freeResult( $res ); - return $count ? true : false; - } - - /* - * For backward compatibility, this function checks both tables and - * views. - */ - function tableExists ($table, $schema = false) { - return $this->relationExists($table, array('r', 'v'), $schema); - } - - function sequenceExists ($sequence, $schema = false) { - return $this->relationExists($sequence, 'S', $schema); - } - - function triggerExists($table, $trigger) { - global $wgDBmwschema; - - $q = <<query(sprintf($q, - $this->addQuotes($wgDBmwschema), - $this->addQuotes($table), - $this->addQuotes($trigger))); - if (!$res) - return NULL; - $rows = $res->numRows(); - $this->freeResult($res); - return $rows; - } - - function ruleExists($table, $rule) { - global $wgDBmwschema; - $exists = $this->selectField("pg_rules", "rulename", - array( "rulename" => $rule, - "tablename" => $table, - "schemaname" => $wgDBmwschema)); - return $exists === $rule; - } - - function constraintExists($table, $constraint) { - global $wgDBmwschema; - $SQL = sprintf("SELECT 1 FROM information_schema.table_constraints ". - "WHERE constraint_schema = %s AND table_name = %s AND constraint_name = %s", - $this->addQuotes($wgDBmwschema), - $this->addQuotes($table), - $this->addQuotes($constraint)); - $res = $this->query($SQL); - if (!$res) - return NULL; - $rows = $res->numRows(); - $this->freeResult($res); - return $rows; - } - - /** - * Query whether a given schema exists. Returns the name of the owner - */ - function schemaExists( $schema ) { - $eschema = preg_replace("/'/", "''", $schema); - $SQL = "SELECT rolname FROM pg_catalog.pg_namespace n, pg_catalog.pg_roles r " - ."WHERE n.nspowner=r.oid AND n.nspname = '$eschema'"; - $res = $this->query( $SQL ); - if ( $res && $res->numRows() ) { - $row = $res->fetchObject(); - $owner = $row->rolname; - } else { - $owner = false; - } - if ($res) - $this->freeResult($res); - return $owner; - } - - /** - * Query whether a given column exists in the mediawiki schema - */ - function fieldExists( $table, $field, $fname = 'DatabasePostgres::fieldExists' ) { - global $wgDBmwschema; - $etable = preg_replace("/'/", "''", $table); - $eschema = preg_replace("/'/", "''", $wgDBmwschema); - $ecol = preg_replace("/'/", "''", $field); - $SQL = "SELECT 1 FROM pg_catalog.pg_class c, pg_catalog.pg_namespace n, pg_catalog.pg_attribute a " - . "WHERE c.relnamespace = n.oid AND c.relname = '$etable' AND n.nspname = '$eschema' " - . "AND a.attrelid = c.oid AND a.attname = '$ecol'"; - $res = $this->query( $SQL, $fname ); - $count = $res ? $res->numRows() : 0; - if ($res) - $this->freeResult( $res ); - return $count; - } - - function fieldInfo( $table, $field ) { - return PostgresField::fromText($this, $table, $field); - } - - function begin( $fname = 'DatabasePostgres::begin' ) { - $this->query( 'BEGIN', $fname ); - $this->mTrxLevel = 1; - } - function immediateCommit( $fname = 'DatabasePostgres::immediateCommit' ) { - return true; - } - function commit( $fname = 'DatabasePostgres::commit' ) { - $this->query( 'COMMIT', $fname ); - $this->mTrxLevel = 0; - } - - /* Not even sure why this is used in the main codebase... */ - function limitResultForUpdate($sql, $num) { - return $sql; - } - - function setup_database() { - global $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgDBport, $wgDBuser; - - // Make sure that we can write to the correct schema - // If not, Postgres will happily and silently go to the next search_path item - $ctest = "mediawiki_test_table"; - $safeschema = $this->quote_ident($wgDBmwschema); - if ($this->tableExists($ctest, $wgDBmwschema)) { - $this->doQuery("DROP TABLE $safeschema.$ctest"); - } - $SQL = "CREATE TABLE $safeschema.$ctest(a int)"; - $olde = error_reporting( 0 ); - $res = $this->doQuery($SQL); - error_reporting( $olde ); - if (!$res) { - print "FAILED. Make sure that the user \"$wgDBuser\" can write to the schema \"$wgDBmwschema\"\n"; - dieout(""); - } - $this->doQuery("DROP TABLE $safeschema.$ctest"); - - $res = dbsource( "../maintenance/postgres/tables.sql", $this); - - ## Update version information - $mwv = $this->addQuotes($wgVersion); - $pgv = $this->addQuotes($this->getServerVersion()); - $pgu = $this->addQuotes($this->mUser); - $mws = $this->addQuotes($wgDBmwschema); - $tss = $this->addQuotes($wgDBts2schema); - $pgp = $this->addQuotes($wgDBport); - $dbn = $this->addQuotes($this->mDBname); - $ctype = pg_fetch_result($this->doQuery("SHOW lc_ctype"),0,0); - - $SQL = "UPDATE mediawiki_version SET mw_version=$mwv, pg_version=$pgv, pg_user=$pgu, ". - "mw_schema = $mws, ts2_schema = $tss, pg_port=$pgp, pg_dbname=$dbn, ". - "ctype = '$ctype' ". - "WHERE type = 'Creation'"; - $this->query($SQL); - - ## Avoid the non-standard "REPLACE INTO" syntax - $f = fopen( "../maintenance/interwiki.sql", 'r' ); - if ($f == false ) { - dieout( "
  • Could not find the interwiki.sql file"); - } - ## We simply assume it is already empty as we have just created it - $SQL = "INSERT INTO interwiki(iw_prefix,iw_url,iw_local) VALUES "; - while ( ! feof( $f ) ) { - $line = fgets($f,1024); - $matches = array(); - if (!preg_match('/^\s*(\(.+?),(\d)\)/', $line, $matches)) { - continue; - } - $this->query("$SQL $matches[1],$matches[2])"); - } - print " (table interwiki successfully populated)...\n"; - - $this->doQuery("COMMIT"); - } - - function encodeBlob( $b ) { - return new Blob ( pg_escape_bytea( $b ) ) ; - } - - function decodeBlob( $b ) { - if ($b instanceof Blob) { - $b = $b->fetch(); - } - return pg_unescape_bytea( $b ); - } - - function strencode( $s ) { ## Should not be called by us - return pg_escape_string( $s ); - } - - function addQuotes( $s ) { - if ( is_null( $s ) ) { - return 'NULL'; - } else if ($s instanceof Blob) { - return "'".$s->fetch($s)."'"; - } - return "'" . pg_escape_string($s) . "'"; - } - - function quote_ident( $s ) { - return '"' . preg_replace( '/"/', '""', $s) . '"'; - } - - /* For now, does nothing */ - function selectDB( $db ) { - return true; - } - - /** - * Postgres specific version of replaceVars. - * Calls the parent version in Database.php - * - * @private - * - * @param string $com SQL string, read from a stream (usually tables.sql) - * - * @return string SQL string - */ - protected function replaceVars( $ins ) { - - $ins = parent::replaceVars( $ins ); - - if ($this->numeric_version >= 8.3) { - // Thanks for not providing backwards-compatibility, 8.3 - $ins = preg_replace( "/to_tsvector\s*\(\s*'default'\s*,/", 'to_tsvector(', $ins ); - } - - if ($this->numeric_version <= 8.1) { // Our minimum version - $ins = str_replace( 'USING gin', 'USING gist', $ins ); - } - - return $ins; - } - - /** - * Various select options - * - * @private - * - * @param array $options an associative array of options to be turned into - * an SQL query, valid keys are listed in the function. - * @return array - */ - function makeSelectOptions( $options ) { - $preLimitTail = $postLimitTail = ''; - $startOpts = $useIndex = ''; - - $noKeyOptions = array(); - foreach ( $options as $key => $option ) { - if ( is_numeric( $key ) ) { - $noKeyOptions[$option] = true; - } - } - - if ( isset( $options['GROUP BY'] ) ) $preLimitTail .= " GROUP BY " . $options['GROUP BY']; - if ( isset( $options['HAVING'] ) ) $preLimitTail .= " HAVING {$options['HAVING']}"; - if ( isset( $options['ORDER BY'] ) ) $preLimitTail .= " ORDER BY " . $options['ORDER BY']; - - //if (isset($options['LIMIT'])) { - // $tailOpts .= $this->limitResult('', $options['LIMIT'], - // isset($options['OFFSET']) ? $options['OFFSET'] - // : false); - //} - - if ( isset( $noKeyOptions['FOR UPDATE'] ) ) $postLimitTail .= ' FOR UPDATE'; - if ( isset( $noKeyOptions['LOCK IN SHARE MODE'] ) ) $postLimitTail .= ' LOCK IN SHARE MODE'; - if ( isset( $noKeyOptions['DISTINCT'] ) || isset( $noKeyOptions['DISTINCTROW'] ) ) $startOpts .= 'DISTINCT'; - - return array( $startOpts, $useIndex, $preLimitTail, $postLimitTail ); - } - - public function setTimeout( $timeout ) { - // @todo fixme no-op - } - - function ping() { - wfDebug( "Function ping() not written for DatabasePostgres.php yet"); - return true; - } - - /** - * How lagged is this slave? - * - */ - public function getLag() { - # Not implemented for PostgreSQL - return false; - } - - function setFakeSlaveLag() {} - function setFakeMaster() {} - - function getDBname() { - return $this->mDBname; - } - - function getServer() { - return $this->mServer; - } - - function buildConcat( $stringList ) { - return implode( ' || ', $stringList ); - } - -} // end DatabasePostgres class diff --git a/includes/DatabaseSqlite.php b/includes/DatabaseSqlite.php deleted file mode 100644 index 8b4466ecaf..0000000000 --- a/includes/DatabaseSqlite.php +++ /dev/null @@ -1,395 +0,0 @@ -mOut =& $wgOut; - $this->mFailFunction = $failFunction; - $this->mFlags = $flags; - $this->mDatabaseFile = "$wgSQLiteDataDir/$dbName.sqlite"; - $this->open($server, $user, $password, $dbName); - } - - /** - * todo: check if these should be true like parent class - */ - function implicitGroupby() { return false; } - function implicitOrderby() { return false; } - - static function newFromParams($server, $user, $password, $dbName, $failFunction = false, $flags = 0) { - return new DatabaseSqlite($server, $user, $password, $dbName, $failFunction, $flags); - } - - /** Open an SQLite database and return a resource handle to it - * NOTE: only $dbName is used, the other parameters are irrelevant for SQLite databases - */ - function open($server,$user,$pass,$dbName) { - $this->mConn = false; - if ($dbName) { - $file = $this->mDatabaseFile; - if ($this->mFlags & DBO_PERSISTENT) $this->mConn = new PDO("sqlite:$file",$user,$pass,array(PDO::ATTR_PERSISTENT => true)); - else $this->mConn = new PDO("sqlite:$file",$user,$pass); - if ($this->mConn === false) wfDebug("DB connection error: $err\n");; - $this->mOpened = $this->mConn; - $this->mConn->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_SILENT); # set error codes only, dont raise exceptions - } - return $this->mConn; - } - - /** - * Close an SQLite database - */ - function close() { - $this->mOpened = false; - if (is_object($this->mConn)) { - if ($this->trxLevel()) $this->immediateCommit(); - $this->mConn = null; - } - return true; - } - - /** - * SQLite doesn't allow buffered results or data seeking etc, so we'll use fetchAll as the result - */ - function doQuery($sql) { - $res = $this->mConn->query($sql); - if ($res === false) $this->reportQueryError($this->lastError(),$this->lastErrno(),$sql,__FUNCTION__); - else { - $r = $res instanceof ResultWrapper ? $res->result : $res; - $this->mAffectedRows = $r->rowCount(); - $res = new ResultWrapper($this,$r->fetchAll()); - } - return $res; - } - - function freeResult(&$res) { - if ($res instanceof ResultWrapper) $res->result = NULL; else $res = NULL; - } - - function fetchObject(&$res) { - if ($res instanceof ResultWrapper) $r =& $res->result; else $r =& $res; - $cur = current($r); - if (is_array($cur)) { - next($r); - $obj = new stdClass; - foreach ($cur as $k => $v) if (!is_numeric($k)) $obj->$k = $v; - return $obj; - } - return false; - } - - function fetchRow(&$res) { - if ($res instanceof ResultWrapper) $r =& $res->result; else $r =& $res; - $cur = current($r); - if (is_array($cur)) { - next($r); - return $cur; - } - return false; - } - - /** - * The PDO::Statement class implements the array interface so count() will work - */ - function numRows(&$res) { - $r = $res instanceof ResultWrapper ? $res->result : $res; - return count($r); - } - - function numFields(&$res) { - $r = $res instanceof ResultWrapper ? $res->result : $res; - return is_array($r) ? count($r[0]) : 0; - } - - function fieldName(&$res,$n) { - $r = $res instanceof ResultWrapper ? $res->result : $res; - if (is_array($r)) { - $keys = array_keys($r[0]); - return $keys[$n]; - } - return false; - } - - /** - * Use MySQL's naming (accounts for prefix etc) but remove surrounding backticks - */ - function tableName($name) { - return str_replace('`','',parent::tableName($name)); - } - - /** - * This must be called after nextSequenceVal - */ - function insertId() { - return $this->mConn->lastInsertId(); - } - - function dataSeek(&$res,$row) { - if ($res instanceof ResultWrapper) $r =& $res->result; else $r =& $res; - reset($r); - if ($row > 0) for ($i = 0; $i < $row; $i++) next($r); - } - - function lastError() { - if (!is_object($this->mConn)) return "Cannot return last error, no db connection"; - $e = $this->mConn->errorInfo(); - return isset($e[2]) ? $e[2] : ''; - } - - function lastErrno() { - if (!is_object($this->mConn)) return "Cannot return last error, no db connection"; - return $this->mConn->errorCode(); - } - - function affectedRows() { - return $this->mAffectedRows; - } - - /** - * Returns information about an index - * - if errors are explicitly ignored, returns NULL on failure - */ - function indexInfo($table, $index, $fname = 'Database::indexExists') { - return false; - } - - function indexUnique($table, $index, $fname = 'Database::indexUnique') { - return false; - } - - /** - * Filter the options used in SELECT statements - */ - function makeSelectOptions($options) { - foreach ($options as $k => $v) if (is_numeric($k) && $v == 'FOR UPDATE') $options[$k] = ''; - return parent::makeSelectOptions($options); - } - - /** - * Based on MySQL method (parent) with some prior SQLite-sepcific adjustments - */ - function insert($table, $a, $fname = 'DatabaseSqlite::insert', $options = array()) { - if (!count($a)) return true; - if (!is_array($options)) $options = array($options); - - # SQLite uses OR IGNORE not just IGNORE - foreach ($options as $k => $v) if ($v == 'IGNORE') $options[$k] = 'OR IGNORE'; - - # SQLite can't handle multi-row inserts, so divide up into multiple single-row inserts - if (isset($a[0]) && is_array($a[0])) { - $ret = true; - foreach ($a as $k => $v) if (!parent::insert($table,$v,"$fname/multi-row",$options)) $ret = false; - } - else $ret = parent::insert($table,$a,"$fname/single-row",$options); - - return $ret; - } - - /** - * SQLite does not have a "USE INDEX" clause, so return an empty string - */ - function useIndexClause($index) { - return ''; - } - - # Returns the size of a text field, or -1 for "unlimited" - function textFieldSize($table, $field) { - return -1; - } - - /** - * No low priority option in SQLite - */ - function lowPriorityOption() { - return ''; - } - - /** - * Returns an SQL expression for a simple conditional. - * - uses CASE on SQLite - */ - function conditional($cond, $trueVal, $falseVal) { - return " (CASE WHEN $cond THEN $trueVal ELSE $falseVal END) "; - } - - function wasDeadlock() { - return $this->lastErrno() == SQLITE_BUSY; - } - - /** - * @return string wikitext of a link to the server software's web site - */ - function getSoftwareLink() { - return "[http://sqlite.org/ SQLite]"; - } - - /** - * @return string Version information from the database - */ - function getServerVersion() { - global $wgContLang; - $ver = $this->mConn->getAttribute(PDO::ATTR_SERVER_VERSION); - $size = $wgContLang->formatSize(filesize($this->mDatabaseFile)); - $file = basename($this->mDatabaseFile); - return $ver." ($file: $size)"; - } - - /** - * Query whether a given column exists in the mediawiki schema - */ - function fieldExists($table, $field) { return true; } - - function fieldInfo($table, $field) { return SQLiteField::fromText($this, $table, $field); } - - function begin() { - if ($this->mTrxLevel == 1) $this->commit(); - $this->mConn->beginTransaction(); - $this->mTrxLevel = 1; - } - - function commit() { - if ($this->mTrxLevel == 0) return; - $this->mConn->commit(); - $this->mTrxLevel = 0; - } - - function rollback() { - if ($this->mTrxLevel == 0) return; - $this->mConn->rollBack(); - $this->mTrxLevel = 0; - } - - function limitResultForUpdate($sql, $num) { - return $sql; - } - - function strencode($s) { - return substr($this->addQuotes($s),1,-1); - } - - function encodeBlob($b) { - return $this->strencode($b); - } - - function decodeBlob($b) { - return $b; - } - - function addQuotes($s) { - return $this->mConn->quote($s); - } - - function quote_ident($s) { return $s; } - - /** - * For now, does nothing - */ - function selectDB($db) { return true; } - - /** - * not done - */ - public function setTimeout($timeout) { return; } - - function ping() { - wfDebug("Function ping() not written for SQLite yet"); - return true; - } - - /** - * How lagged is this slave? - */ - public function getLag() { - return 0; - } - - /** - * Called by the installer script (when modified according to the MediaWikiLite installation instructions) - * - this is the same way PostgreSQL works, MySQL reads in tables.sql and interwiki.sql using dbsource (which calls db->sourceFile) - */ - public function setup_database() { - global $IP,$wgSQLiteDataDir,$wgDBTableOptions; - $wgDBTableOptions = ''; - $mysql_tmpl = "$IP/maintenance/tables.sql"; - $mysql_iw = "$IP/maintenance/interwiki.sql"; - $sqlite_tmpl = "$IP/maintenance/sqlite/tables.sql"; - - # Make an SQLite template file if it doesn't exist (based on the same one MySQL uses to create a new wiki db) - if (!file_exists($sqlite_tmpl)) { - $sql = file_get_contents($mysql_tmpl); - $sql = preg_replace('/^\s*--.*?$/m','',$sql); # strip comments - $sql = preg_replace('/^\s*(UNIQUE)?\s*(PRIMARY)?\s*KEY.+?$/m','',$sql); - $sql = preg_replace('/^\s*(UNIQUE )?INDEX.+?$/m','',$sql); # These indexes should be created with a CREATE INDEX query - $sql = preg_replace('/^\s*FULLTEXT.+?$/m','',$sql); # Full text indexes - $sql = preg_replace('/ENUM\(.+?\)/','TEXT',$sql); # Make ENUM's into TEXT's - $sql = preg_replace('/binary\(\d+\)/','BLOB',$sql); - $sql = preg_replace('/(TYPE|MAX_ROWS|AVG_ROW_LENGTH)=\w+/','',$sql); - $sql = preg_replace('/,\s*\)/s',')',$sql); # removing previous items may leave a trailing comma - $sql = str_replace('binary','',$sql); - $sql = str_replace('auto_increment','PRIMARY KEY AUTOINCREMENT',$sql); - $sql = str_replace(' unsigned','',$sql); - $sql = str_replace(' int ',' INTEGER ',$sql); - $sql = str_replace('NOT NULL','',$sql); - - # Tidy up and write file - $sql = preg_replace('/^\s*^/m','',$sql); # Remove empty lines - $sql = preg_replace('/;$/m',";\n",$sql); # Separate each statement with an empty line - file_put_contents($sqlite_tmpl,$sql); - } - - # Parse the SQLite template replacing inline variables such as /*$wgDBprefix*/ - $err = $this->sourceFile($sqlite_tmpl); - if ($err !== true) $this->reportQueryError($err,0,$sql,__FUNCTION__); - - # Use DatabasePostgres's code to populate interwiki from MySQL template - $f = fopen($mysql_iw,'r'); - if ($f == false) dieout("
  • Could not find the interwiki.sql file"); - $sql = "INSERT INTO interwiki(iw_prefix,iw_url,iw_local) VALUES "; - while (!feof($f)) { - $line = fgets($f,1024); - $matches = array(); - if (!preg_match('/^\s*(\(.+?),(\d)\)/', $line, $matches)) continue; - $this->query("$sql $matches[1],$matches[2])"); - } - } - -} - -/** - * @ingroup Database - */ -class SQLiteField extends MySQLField { - - function __construct() { - } - - static function fromText($db, $table, $field) { - $n = new SQLiteField; - $n->name = $field; - $n->tablename = $table; - return $n; - } - -} // end DatabaseSqlite class - diff --git a/includes/DateFormatter.php b/includes/DateFormatter.php deleted file mode 100644 index 9ef11d5e35..0000000000 --- a/includes/DateFormatter.php +++ /dev/null @@ -1,283 +0,0 @@ -monthNames = $this->getMonthRegex(); - for ( $i=1; $i<=12; $i++ ) { - $this->xMonths[$wgContLang->lc( $wgContLang->getMonthName( $i ) )] = $i; - $this->xMonths[$wgContLang->lc( $wgContLang->getMonthAbbreviation( $i ) )] = $i; - } - - $this->regexTrail = '(?![a-z])/iu'; - - # Partial regular expressions - $this->prxDM = '\[\[(\d{1,2})[ _](' . $this->monthNames . ')]]'; - $this->prxMD = '\[\[(' . $this->monthNames . ')[ _](\d{1,2})]]'; - $this->prxY = '\[\[(\d{1,4}([ _]BC|))]]'; - $this->prxISO1 = '\[\[(-?\d{4})]]-\[\[(\d{2})-(\d{2})]]'; - $this->prxISO2 = '\[\[(-?\d{4})-(\d{2})-(\d{2})]]'; - - # Real regular expressions - $this->regexes[self::DMY] = "/{$this->prxDM} *,? *{$this->prxY}{$this->regexTrail}"; - $this->regexes[self::YDM] = "/{$this->prxY} *,? *{$this->prxDM}{$this->regexTrail}"; - $this->regexes[self::MDY] = "/{$this->prxMD} *,? *{$this->prxY}{$this->regexTrail}"; - $this->regexes[self::YMD] = "/{$this->prxY} *,? *{$this->prxMD}{$this->regexTrail}"; - $this->regexes[self::DM] = "/{$this->prxDM}{$this->regexTrail}"; - $this->regexes[self::MD] = "/{$this->prxMD}{$this->regexTrail}"; - $this->regexes[self::ISO1] = "/{$this->prxISO1}{$this->regexTrail}"; - $this->regexes[self::ISO2] = "/{$this->prxISO2}{$this->regexTrail}"; - - # Extraction keys - # See the comments in replace() for the meaning of the letters - $this->keys[self::DMY] = 'jFY'; - $this->keys[self::YDM] = 'Y jF'; - $this->keys[self::MDY] = 'FjY'; - $this->keys[self::YMD] = 'Y Fj'; - $this->keys[self::DM] = 'jF'; - $this->keys[self::MD] = 'Fj'; - $this->keys[self::ISO1] = 'ymd'; # y means ISO year - $this->keys[self::ISO2] = 'ymd'; - - # Target date formats - $this->targets[self::DMY] = '[[F j|j F]] [[Y]]'; - $this->targets[self::YDM] = '[[Y]], [[F j|j F]]'; - $this->targets[self::MDY] = '[[F j]], [[Y]]'; - $this->targets[self::YMD] = '[[Y]] [[F j]]'; - $this->targets[self::DM] = '[[F j|j F]]'; - $this->targets[self::MD] = '[[F j]]'; - $this->targets[self::ISO1] = '[[Y|y]]-[[F j|m-d]]'; - $this->targets[self::ISO2] = '[[y-m-d]]'; - - # Rules - # pref source target - $this->rules[self::DMY][self::MD] = self::DM; - $this->rules[self::ALL][self::MD] = self::MD; - $this->rules[self::MDY][self::DM] = self::MD; - $this->rules[self::ALL][self::DM] = self::DM; - $this->rules[self::NONE][self::ISO2] = self::ISO1; - - $this->preferences = array( - 'default' => self::NONE, - 'dmy' => self::DMY, - 'mdy' => self::MDY, - 'ymd' => self::YMD, - 'ISO 8601' => self::ISO1, - ); - } - - /** - * @static - */ - function &getInstance() { - global $wgMemc; - static $dateFormatter = false; - if ( !$dateFormatter ) { - $dateFormatter = $wgMemc->get( wfMemcKey( 'dateformatter' ) ); - if ( !$dateFormatter ) { - $dateFormatter = new DateFormatter; - $wgMemc->set( wfMemcKey( 'dateformatter' ), $dateFormatter, 3600 ); - } - } - return $dateFormatter; - } - - /** - * @param string $preference User preference - * @param string $text Text to reformat - */ - function reformat( $preference, $text ) { - if ( isset( $this->preferences[$preference] ) ) { - $preference = $this->preferences[$preference]; - } else { - $preference = self::NONE; - } - for ( $i=1; $i<=self::LAST; $i++ ) { - $this->mSource = $i; - if ( isset ( $this->rules[$preference][$i] ) ) { - # Specific rules - $this->mTarget = $this->rules[$preference][$i]; - } elseif ( isset ( $this->rules[self::ALL][$i] ) ) { - # General rules - $this->mTarget = $this->rules[self::ALL][$i]; - } elseif ( $preference ) { - # User preference - $this->mTarget = $preference; - } else { - # Default - $this->mTarget = $i; - } - $text = preg_replace_callback( $this->regexes[$i], array( &$this, 'replace' ), $text ); - } - return $text; - } - - /** - * @param $matches - */ - function replace( $matches ) { - # Extract information from $matches - $bits = array(); - $key = $this->keys[$this->mSource]; - for ( $p=0; $p < strlen($key); $p++ ) { - if ( $key{$p} != ' ' ) { - $bits[$key{$p}] = $matches[$p+1]; - } - } - - $format = $this->targets[$this->mTarget]; - - # Construct new date - $text = ''; - $fail = false; - - for ( $p=0; $p < strlen( $format ); $p++ ) { - $char = $format{$p}; - switch ( $char ) { - case 'd': # ISO day of month - if ( !isset($bits['d']) ) { - $text .= sprintf( '%02d', $bits['j'] ); - } else { - $text .= $bits['d']; - } - break; - case 'm': # ISO month - if ( !isset($bits['m']) ) { - $m = $this->makeIsoMonth( $bits['F'] ); - if ( !$m || $m == '00' ) { - $fail = true; - } else { - $text .= $m; - } - } else { - $text .= $bits['m']; - } - break; - case 'y': # ISO year - if ( !isset( $bits['y'] ) ) { - $text .= $this->makeIsoYear( $bits['Y'] ); - } else { - $text .= $bits['y']; - } - break; - case 'j': # ordinary day of month - if ( !isset($bits['j']) ) { - $text .= intval( $bits['d'] ); - } else { - $text .= $bits['j']; - } - break; - case 'F': # long month - if ( !isset( $bits['F'] ) ) { - $m = intval($bits['m']); - if ( $m > 12 || $m < 1 ) { - $fail = true; - } else { - global $wgContLang; - $text .= $wgContLang->getMonthName( $m ); - } - } else { - $text .= ucfirst( $bits['F'] ); - } - break; - case 'Y': # ordinary (optional BC) year - if ( !isset( $bits['Y'] ) ) { - $text .= $this->makeNormalYear( $bits['y'] ); - } else { - $text .= $bits['Y']; - } - break; - default: - $text .= $char; - } - } - if ( $fail ) { - $text = $matches[0]; - } - return $text; - } - - /** - * @todo document - */ - function getMonthRegex() { - global $wgContLang; - $names = array(); - for( $i = 1; $i <= 12; $i++ ) { - $names[] = $wgContLang->getMonthName( $i ); - $names[] = $wgContLang->getMonthAbbreviation( $i ); - } - return implode( '|', $names ); - } - - /** - * Makes an ISO month, e.g. 02, from a month name - * @param $monthName String: month name - * @return string ISO month name - */ - function makeIsoMonth( $monthName ) { - global $wgContLang; - - $n = $this->xMonths[$wgContLang->lc( $monthName )]; - return sprintf( '%02d', $n ); - } - - /** - * @todo document - * @param $year String: Year name - * @return string ISO year name - */ - function makeIsoYear( $year ) { - # Assumes the year is in a nice format, as enforced by the regex - if ( substr( $year, -2 ) == 'BC' ) { - $num = intval(substr( $year, 0, -3 )) - 1; - # PHP bug note: sprintf( "%04d", -1 ) fails poorly - $text = sprintf( '-%04d', $num ); - - } else { - $text = sprintf( '%04d', $year ); - } - return $text; - } - - /** - * @todo document - */ - function makeNormalYear( $iso ) { - if ( $iso{0} == '-' ) { - $text = (intval( substr( $iso, 1 ) ) + 1) . ' BC'; - } else { - $text = intval( $iso ); - } - return $text; - } -} diff --git a/includes/LBFactory.php b/includes/LBFactory.php deleted file mode 100644 index e7b2778390..0000000000 --- a/includes/LBFactory.php +++ /dev/null @@ -1,224 +0,0 @@ -forEachLB( array( $this, 'callMethod' ), array( $methodName, $args ) ); - } - - /** - * Private helper for forEachLBCallMethod - */ - function callMethod( $loadBalancer, $methodName, $args ) { - call_user_func_array( array( $loadBalancer, $methodName ), $args ); - } - - /** - * Commit changes on all master connections - */ - function commitMasterChanges() { - $this->forEachLBCallMethod( 'commitMasterChanges' ); - } -} - -/** - * A simple single-master LBFactory that gets its configuration from the b/c globals - */ -class LBFactory_Simple extends LBFactory { - var $mainLB; - var $extLBs = array(); - - # Chronology protector - var $chronProt; - - function __construct( $conf ) { - $this->chronProt = new ChronologyProtector; - } - - function getMainLB( $wiki = false ) { - if ( !isset( $this->mainLB ) ) { - global $wgDBservers, $wgMasterWaitTimeout; - if ( !$wgDBservers ) { - global $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname, $wgDBtype, $wgDebugDumpSql; - $wgDBservers = array(array( - 'host' => $wgDBserver, - 'user' => $wgDBuser, - 'password' => $wgDBpassword, - 'dbname' => $wgDBname, - 'type' => $wgDBtype, - 'load' => 1, - 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT - )); - } - - $this->mainLB = new LoadBalancer( $wgDBservers, false, $wgMasterWaitTimeout, true ); - $this->mainLB->parentInfo( array( 'id' => 'main' ) ); - $this->chronProt->initLB( $this->mainLB ); - } - return $this->mainLB; - } - - function &getExternalLB( $cluster, $wiki = false ) { - global $wgExternalServers; - if ( !isset( $this->extLBs[$cluster] ) ) { - if ( !isset( $wgExternalServers[$cluster] ) ) { - throw new MWException( __METHOD__.": Unknown cluster \"$cluster\"" ); - } - $this->extLBs[$cluster] = new LoadBalancer( $wgExternalServers[$cluster] ); - $this->extLBs[$cluster]->parentInfo( array( 'id' => "ext-$cluster" ) ); - } - return $this->extLBs[$cluster]; - } - - /** - * Execute a function for each tracked load balancer - * The callback is called with the load balancer as the first parameter, - * and $params passed as the subsequent parameters. - */ - function forEachLB( $callback, $params = array() ) { - if ( isset( $this->mainLB ) ) { - call_user_func_array( $callback, array_merge( array( $this->mainLB ), $params ) ); - } - foreach ( $this->extLBs as $lb ) { - call_user_func_array( $callback, array_merge( array( $lb ), $params ) ); - } - } - - function shutdown() { - if ( $this->mainLB ) { - $this->chronProt->shutdownLB( $this->mainLB ); - } - $this->chronProt->shutdown(); - $this->commitMasterChanges(); - } -} - -/** - * Class for ensuring a consistent ordering of events as seen by the user, despite replication. - * Kind of like Hawking's [[Chronology Protection Agency]]. - */ -class ChronologyProtector { - var $startupPos; - var $shutdownPos = array(); - - /** - * Initialise a LoadBalancer to give it appropriate chronology protection. - * - * @param LoadBalancer $lb - */ - function initLB( $lb ) { - if ( $this->startupPos === null ) { - if ( !empty( $_SESSION[__CLASS__] ) ) { - $this->startupPos = $_SESSION[__CLASS__]; - } - } - if ( !$this->startupPos ) { - return; - } - $masterName = $lb->getServerName( 0 ); - - if ( $lb->getServerCount() > 1 && !empty( $this->startupPos[$masterName] ) ) { - $info = $lb->parentInfo(); - $pos = $this->startupPos[$masterName]; - wfDebug( __METHOD__.": LB " . $info['id'] . " waiting for master pos $pos\n" ); - $lb->waitFor( $this->startupPos[$masterName] ); - } - } - - /** - * Notify the ChronologyProtector that the LoadBalancer is about to shut - * down. Saves replication positions. - * - * @param LoadBalancer $lb - */ - function shutdownLB( $lb ) { - if ( session_id() != '' && $lb->getServerCount() > 1 ) { - $masterName = $lb->getServerName( 0 ); - if ( !isset( $this->shutdownPos[$masterName] ) ) { - $pos = $lb->getMasterPos(); - $info = $lb->parentInfo(); - wfDebug( __METHOD__.": LB " . $info['id'] . " has master pos $pos\n" ); - $this->shutdownPos[$masterName] = $pos; - } - } - } - - /** - * Notify the ChronologyProtector that the LBFactory is done calling shutdownLB() for now. - * May commit chronology data to persistent storage. - */ - function shutdown() { - if ( session_id() != '' && count( $this->shutdownPos ) ) { - wfDebug( __METHOD__.": saving master pos for " . - count( $this->shutdownPos ) . " master(s)\n" ); - $_SESSION[__CLASS__] = $this->shutdownPos; - } - } -} diff --git a/includes/LBFactory_Multi.php b/includes/LBFactory_Multi.php deleted file mode 100644 index b5fc1f6dd7..0000000000 --- a/includes/LBFactory_Multi.php +++ /dev/null @@ -1,224 +0,0 @@ - array( 'db1' => 100, 'db2' => 100 ) ) - * - * serverTemplate A server info associative array as documented for $wgDBservers. The host, - * hostName and load entries will be overridden. - * - * groupLoadsBySection A 3-d map giving server load ratios for each section and group. For example: - * array( 'section1' => array( 'group1' => array( 'db1' => 100, 'db2' => 100 ) ) ) - * - * groupLoadsByDB A 3-d map giving server load ratios by DB name. - * - * hostsByName A map of hostname to IP address. - * - * externalLoads A map of external storage cluster name to server load map - * - * externalTemplateOverrides A set of server info keys overriding serverTemplate for external storage - * - * templateOverridesByServer A 2-d map overriding serverTemplate and externalTemplateOverrides on a - * server-by-server basis. Applies to both core and external storage. - * - * templateOverridesByCluster A 2-d map overriding the server info by external storage cluster - * - * masterTemplateOverrides An override array for all master servers. - * - * @ingroup Database - */ -class LBFactory_Multi extends LBFactory { - // Required settings - var $sectionsByDB, $sectionLoads, $serverTemplate; - // Optional settings - var $groupLoadsBySection = array(), $groupLoadsByDB = array(), $hostsByName = array(); - var $externalLoads = array(), $externalTemplateOverrides, $templateOverridesByServer; - var $templateOverridesByCluster, $masterTemplateOverrides; - // Other stuff - var $conf, $mainLBs = array(), $extLBs = array(); - var $localSection = null; - - function __construct( $conf ) { - $this->chronProt = new ChronologyProtector; - $this->conf = $conf; - $required = array( 'sectionsByDB', 'sectionLoads', 'serverTemplate' ); - $optional = array( 'groupLoadsBySection', 'groupLoadsByDB', 'hostsByName', - 'externalLoads', 'externalTemplateOverrides', 'templateOverridesByServer', - 'templateOverridesByCluster', 'masterTemplateOverrides' ); - - foreach ( $required as $key ) { - if ( !isset( $conf[$key] ) ) { - throw new MWException( __CLASS__.": $key is required in configuration" ); - } - $this->$key = $conf[$key]; - } - - foreach ( $optional as $key ) { - if ( isset( $conf[$key] ) ) { - $this->$key = $conf[$key]; - } - } - } - - function getSectionForWiki( $wiki ) { - list( $dbName, $prefix ) = $this->getDBNameAndPrefix( $wiki ); - if ( isset( $this->sectionsByDB[$dbName] ) ) { - return $this->sectionsByDB[$dbName]; - } else { - return 'DEFAULT'; - } - } - - function getMainLB( $wiki = false ) { - // Determine section - if ( $wiki === false ) { - if ( $this->localSection === null ) { - $this->localSection = $this->getSectionForWiki( $wiki ); - } - $section = $this->localSection; - } else { - $section = $this->getSectionForWiki( $wiki ); - } - - if ( !isset( $this->mainLBs[$section] ) ) { - list( $dbName, $prefix ) = $this->getDBNameAndPrefix( $wiki ); - $groupLoads = array(); - if ( isset( $this->groupLoadsByDB[$dbName] ) ) { - $groupLoads = $this->groupLoadsByDB[$dbName]; - } - if ( isset( $this->groupLoadsBySection[$section] ) ) { - $groupLoads = array_merge_recursive( $groupLoads, $this->groupLoadsBySection[$section] ); - } - $this->mainLBs[$section] = $this->newLoadBalancer( $this->serverTemplate, - $this->sectionLoads[$section], $groupLoads, "main-$section" ); - $this->chronProt->initLB( $this->mainLBs[$section] ); - } - return $this->mainLBs[$section]; - } - - function &getExternalLB( $cluster, $wiki = false ) { - if ( !isset( $this->extLBs[$cluster] ) ) { - if ( !isset( $this->externalLoads[$cluster] ) ) { - throw new MWException( __METHOD__.": Unknown cluster \"$cluster\"" ); - } - $template = $this->serverTemplate; - if ( isset( $this->externalTemplateOverrides ) ) { - $template = $this->externalTemplateOverrides + $template; - } - if ( isset( $this->templateOverridesByCluster[$cluster] ) ) { - $template = $this->templateOverridesByCluster[$cluster] + $template; - } - $this->extLBs[$cluster] = $this->newLoadBalancer( $template, - $this->externalLoads[$cluster], array(), "ext-$cluster" ); - } - return $this->extLBs[$cluster]; - } - - /** - * Make a new load balancer object based on template and load array - */ - function newLoadBalancer( $template, $loads, $groupLoads, $id ) { - global $wgMasterWaitTimeout; - $servers = $this->makeServerArray( $template, $loads, $groupLoads ); - $lb = new LoadBalancer( $servers, false, $wgMasterWaitTimeout ); - $lb->parentInfo( array( 'id' => $id ) ); - return $lb; - } - - /** - * Make a server array as expected by LoadBalancer::__construct, using a template and load array - */ - function makeServerArray( $template, $loads, $groupLoads ) { - $servers = array(); - $master = true; - $groupLoadsByServer = $this->reindexGroupLoads( $groupLoads ); - foreach ( $groupLoadsByServer as $server => $stuff ) { - if ( !isset( $loads[$server] ) ) { - $loads[$server] = 0; - } - } - foreach ( $loads as $serverName => $load ) { - $serverInfo = $template; - if ( $master ) { - $serverInfo['master'] = true; - if ( isset( $this->masterTemplateOverrides ) ) { - $serverInfo = $this->masterTemplateOverrides + $serverInfo; - } - $master = false; - } - if ( isset( $this->templateOverridesByServer[$serverName] ) ) { - $serverInfo = $this->templateOverridesByServer[$serverName] + $serverInfo; - } - if ( isset( $groupLoadsByServer[$serverName] ) ) { - $serverInfo['groupLoads'] = $groupLoadsByServer[$serverName]; - } - if ( isset( $this->hostsByName[$serverName] ) ) { - $serverInfo['host'] = $this->hostsByName[$serverName]; - } else { - $serverInfo['host'] = $serverName; - } - $serverInfo['hostName'] = $serverName; - $serverInfo['load'] = $load; - $servers[] = $serverInfo; - } - return $servers; - } - - /** - * Take a group load array indexed by group then server, and reindex it by server then group - */ - function reindexGroupLoads( $groupLoads ) { - $reindexed = array(); - foreach ( $groupLoads as $group => $loads ) { - foreach ( $loads as $server => $load ) { - $reindexed[$server][$group] = $load; - } - } - return $reindexed; - } - - /** - * Get the database name and prefix based on the wiki ID - */ - function getDBNameAndPrefix( $wiki = false ) { - if ( $wiki === false ) { - global $wgDBname, $wgDBprefix; - return array( $wgDBname, $wgDBprefix ); - } else { - return wfSplitWikiID( $wiki ); - } - } - - /** - * Execute a function for each tracked load balancer - * The callback is called with the load balancer as the first parameter, - * and $params passed as the subsequent parameters. - */ - function forEachLB( $callback, $params = array() ) { - foreach ( $this->mainLBs as $lb ) { - call_user_func_array( $callback, array_merge( array( $lb ), $params ) ); - } - foreach ( $this->extLBs as $lb ) { - call_user_func_array( $callback, array_merge( array( $lb ), $params ) ); - } - } - - function shutdown() { - foreach ( $this->mainLBs as $lb ) { - $this->chronProt->shutdownLB( $lb ); - } - $this->chronProt->shutdown(); - $this->commitMasterChanges(); - } -} diff --git a/includes/LoadBalancer.php b/includes/LoadBalancer.php deleted file mode 100644 index 4280713b2a..0000000000 --- a/includes/LoadBalancer.php +++ /dev/null @@ -1,894 +0,0 @@ -mServers = $servers; - $this->mFailFunction = $failFunction; - $this->mReadIndex = -1; - $this->mWriteIndex = -1; - $this->mConns = array( - 'local' => array(), - 'foreignUsed' => array(), - 'foreignFree' => array() ); - $this->mLastIndex = -1; - $this->mLoads = array(); - $this->mWaitForPos = false; - $this->mWaitTimeout = $waitTimeout; - $this->mLaggedSlaveMode = false; - $this->mErrorConnection = false; - $this->mAllowLag = false; - - foreach( $servers as $i => $server ) { - $this->mLoads[$i] = $server['load']; - if ( isset( $server['groupLoads'] ) ) { - foreach ( $server['groupLoads'] as $group => $ratio ) { - if ( !isset( $this->mGroupLoads[$group] ) ) { - $this->mGroupLoads[$group] = array(); - } - $this->mGroupLoads[$group][$i] = $ratio; - } - } - } - } - - static function newFromParams( $servers, $failFunction = false, $waitTimeout = 10 ) - { - return new LoadBalancer( $servers, $failFunction, $waitTimeout ); - } - - /** - * Get or set arbitrary data used by the parent object, usually an LBFactory - */ - function parentInfo( $x = null ) { - return wfSetVar( $this->mParentInfo, $x ); - } - - /** - * Given an array of non-normalised probabilities, this function will select - * an element and return the appropriate key - */ - function pickRandom( $weights ) - { - if ( !is_array( $weights ) || count( $weights ) == 0 ) { - return false; - } - - $sum = array_sum( $weights ); - if ( $sum == 0 ) { - # No loads on any of them - # In previous versions, this triggered an unweighted random selection, - # but this feature has been removed as of April 2006 to allow for strict - # separation of query groups. - return false; - } - $max = mt_getrandmax(); - $rand = mt_rand(0, $max) / $max * $sum; - - $sum = 0; - foreach ( $weights as $i => $w ) { - $sum += $w; - if ( $sum >= $rand ) { - break; - } - } - return $i; - } - - function getRandomNonLagged( $loads, $wiki = false ) { - # Unset excessively lagged servers - $lags = $this->getLagTimes( $wiki ); - foreach ( $lags as $i => $lag ) { - if ( $i != 0 && isset( $this->mServers[$i]['max lag'] ) ) { - if ( $lag === false ) { - wfDebug( "Server #$i is not replicating\n" ); - unset( $loads[$i] ); - } elseif ( $lag > $this->mServers[$i]['max lag'] ) { - wfDebug( "Server #$i is excessively lagged ($lag seconds)\n" ); - unset( $loads[$i] ); - } - } - } - - # Find out if all the slaves with non-zero load are lagged - $sum = 0; - foreach ( $loads as $load ) { - $sum += $load; - } - if ( $sum == 0 ) { - # No appropriate DB servers except maybe the master and some slaves with zero load - # Do NOT use the master - # Instead, this function will return false, triggering read-only mode, - # and a lagged slave will be used instead. - return false; - } - - if ( count( $loads ) == 0 ) { - return false; - } - - #wfDebugLog( 'connect', var_export( $loads, true ) ); - - # Return a random representative of the remainder - return $this->pickRandom( $loads ); - } - - /** - * Get the index of the reader connection, which may be a slave - * This takes into account load ratios and lag times. It should - * always return a consistent index during a given invocation - * - * Side effect: opens connections to databases - */ - function getReaderIndex( $group = false, $wiki = false ) { - global $wgReadOnly, $wgDBClusterTimeout, $wgDBAvgStatusPoll, $wgDBtype; - - # FIXME: For now, only go through all this for mysql databases - if ($wgDBtype != 'mysql') { - return $this->getWriterIndex(); - } - - if ( count( $this->mServers ) == 1 ) { - # Skip the load balancing if there's only one server - return 0; - } elseif ( $group === false and $this->mReadIndex >= 0 ) { - # Shortcut if generic reader exists already - return $this->mReadIndex; - } - - wfProfileIn( __METHOD__ ); - - $totalElapsed = 0; - - # convert from seconds to microseconds - $timeout = $wgDBClusterTimeout * 1e6; - - # Find the relevant load array - if ( $group !== false ) { - if ( isset( $this->mGroupLoads[$group] ) ) { - $nonErrorLoads = $this->mGroupLoads[$group]; - } else { - # No loads for this group, return false and the caller can use some other group - wfDebug( __METHOD__.": no loads for group $group\n" ); - wfProfileOut( __METHOD__ ); - return false; - } - } else { - $nonErrorLoads = $this->mLoads; - } - - if ( !$nonErrorLoads ) { - throw new MWException( "Empty server array given to LoadBalancer" ); - } - - $i = false; - $found = false; - $laggedSlaveMode = false; - - # First try quickly looking through the available servers for a server that - # meets our criteria - do { - $totalThreadsConnected = 0; - $overloadedServers = 0; - $currentLoads = $nonErrorLoads; - while ( count( $currentLoads ) ) { - if ( $wgReadOnly || $this->mAllowLagged || $laggedSlaveMode ) { - $i = $this->pickRandom( $currentLoads ); - } else { - $i = $this->getRandomNonLagged( $currentLoads, $wiki ); - if ( $i === false && count( $currentLoads ) != 0 ) { - # All slaves lagged. Switch to read-only mode - $wgReadOnly = wfMsgNoDBForContent( 'readonly_lag' ); - $i = $this->pickRandom( $currentLoads ); - $laggedSlaveMode = true; - } - } - - if ( $i === false ) { - # pickRandom() returned false - # This is permanent and means the configuration wants us to return false - wfDebugLog( 'connect', __METHOD__.": pickRandom() returned false\n" ); - wfProfileOut( __METHOD__ ); - return false; - } - - wfDebugLog( 'connect', __METHOD__.": Using reader #$i: {$this->mServers[$i]['host']}...\n" ); - $conn = $this->openConnection( $i, $wiki ); - - if ( !$conn ) { - wfDebugLog( 'connect', __METHOD__.": Failed connecting to $i/$wiki\n" ); - unset( $nonErrorLoads[$i] ); - unset( $currentLoads[$i] ); - continue; - } - - if ( isset( $this->mServers[$i]['max threads'] ) ) { - $status = $conn->getStatus("Thread%"); - if ( $wiki !== false ) { - $this->reuseConnection( $conn ); - } - if ( $status['Threads_running'] > $this->mServers[$i]['max threads'] ) { - $totalThreadsConnected += $status['Threads_connected']; - $overloadedServers++; - unset( $currentLoads[$i] ); - } else { - # Max threads satisfied, return this server - break 2; - } - } else { - # No maximum, return this server - if ( $wiki !== false ) { - $this->reuseConnection( $conn ); - } - $found = true; - break 2; - } - } - - # No server found yet - $i = false; - - # If all servers were down, quit now - if ( !count( $nonErrorLoads ) ) { - wfDebugLog( 'connect', "All servers down\n" ); - break; - } - - # Some servers must have been overloaded - if ( $overloadedServers == 0 ) { - throw new MWException( __METHOD__.": unexpectedly found no overloaded servers" ); - } - # Back off for a while - # Scale the sleep time by the number of connected threads, to produce a - # roughly constant global poll rate - $avgThreads = $totalThreadsConnected / $overloadedServers; - $totalElapsed += $this->sleep( $wgDBAvgStatusPoll * $avgThreads ); - } while ( $totalElapsed < $timeout ); - - if ( $totalElapsed >= $timeout ) { - wfDebugLog( 'connect', "All servers busy\n" ); - $this->mErrorConnection = false; - $this->mLastError = 'All servers busy'; - } - - if ( $i !== false ) { - # Wait for the session master pos for a short time - if ( $this->mWaitForPos && $i > 0 ) { - if ( !$this->doWait( $i ) ) { - $this->mServers[$i]['slave pos'] = $conn->getSlavePos(); - } - } - if ( $this->mReadIndex <=0 && $this->mLoads[$i]>0 && $i !== false ) { - $this->mReadIndex = $i; - } - } - wfProfileOut( __METHOD__ ); - return $i; - } - - /** - * Wait for a specified number of microseconds, and return the period waited - */ - function sleep( $t ) { - wfProfileIn( __METHOD__ ); - wfDebug( __METHOD__.": waiting $t us\n" ); - usleep( $t ); - wfProfileOut( __METHOD__ ); - return $t; - } - - /** - * Get a random server to use in a query group - * @deprecated use getReaderIndex - */ - function getGroupIndex( $group ) { - return $this->getReaderIndex( $group ); - } - - /** - * Set the master wait position - * If a DB_SLAVE connection has been opened already, waits - * Otherwise sets a variable telling it to wait if such a connection is opened - */ - public function waitFor( $pos ) { - wfProfileIn( __METHOD__ ); - $this->mWaitForPos = $pos; - $i = $this->mReadIndex; - - if ( $i > 0 ) { - if ( !$this->doWait( $i ) ) { - $this->mServers[$i]['slave pos'] = $this->getAnyOpenConnection( $i )->getSlavePos(); - $this->mLaggedSlaveMode = true; - } - } - wfProfileOut( __METHOD__ ); - } - - /** - * Get any open connection to a given server index, local or foreign - * Returns false if there is no connection open - */ - function getAnyOpenConnection( $i ) { - foreach ( $this->mConns as $type => $conns ) { - if ( !empty( $conns[$i] ) ) { - return reset( $conns[$i] ); - } - } - return false; - } - - /** - * Wait for a given slave to catch up to the master pos stored in $this - */ - function doWait( $index ) { - # Find a connection to wait on - $conn = $this->getAnyOpenConnection( $index ); - if ( !$conn ) { - wfDebug( __METHOD__ . ": no connection open\n" ); - return false; - } - - wfDebug( __METHOD__.": Waiting for slave #$index to catch up...\n" ); - $result = $conn->masterPosWait( $this->mWaitForPos, $this->mWaitTimeout ); - - if ( $result == -1 || is_null( $result ) ) { - # Timed out waiting for slave, use master instead - wfDebug( __METHOD__.": Timed out waiting for slave #$index pos {$this->mWaitForPos}\n" ); - return false; - } else { - wfDebug( __METHOD__.": Done\n" ); - return true; - } - } - - /** - * Get a connection by index - * This is the main entry point for this class. - */ - public function &getConnection( $i, $groups = array(), $wiki = false ) { - global $wgDBtype; - wfProfileIn( __METHOD__ ); - - if ( $wiki === wfWikiID() ) { - $wiki = false; - } - - # Query groups - if ( $i == DB_MASTER ) { - $i = $this->getWriterIndex(); - } elseif ( !is_array( $groups ) ) { - $groupIndex = $this->getReaderIndex( $groups, $wiki ); - if ( $groupIndex !== false ) { - $serverName = $this->getServerName( $groupIndex ); - wfDebug( __METHOD__.": using server $serverName for group $groups\n" ); - $i = $groupIndex; - } - } else { - foreach ( $groups as $group ) { - $groupIndex = $this->getReaderIndex( $group, $wiki ); - if ( $groupIndex !== false ) { - $serverName = $this->getServerName( $groupIndex ); - wfDebug( __METHOD__.": using server $serverName for group $group\n" ); - $i = $groupIndex; - break; - } - } - } - - # Operation-based index - if ( $i == DB_SLAVE ) { - $i = $this->getReaderIndex( false, $wiki ); - } elseif ( $i == DB_LAST ) { - # Just use $this->mLastIndex, which should already be set - $i = $this->mLastIndex; - if ( $i === -1 ) { - # Oh dear, not set, best to use the writer for safety - wfDebug( "Warning: DB_LAST used when there was no previous index\n" ); - $i = $this->getWriterIndex(); - } - } - # Couldn't find a working server in getReaderIndex()? - if ( $i === false ) { - $this->reportConnectionError( $this->mErrorConnection ); - } - - # Now we have an explicit index into the servers array - $conn = $this->openConnection( $i, $wiki ); - if ( !$conn ) { - $this->reportConnectionError( $this->mErrorConnection ); - } - - wfProfileOut( __METHOD__ ); - return $conn; - } - - /** - * Mark a foreign connection as being available for reuse under a different - * DB name or prefix. This mechanism is reference-counted, and must be called - * the same number of times as getConnection() to work. - */ - public function reuseConnection( $conn ) { - $serverIndex = $conn->getLBInfo('serverIndex'); - $refCount = $conn->getLBInfo('foreignPoolRefCount'); - $dbName = $conn->getDBname(); - $prefix = $conn->tablePrefix(); - if ( strval( $prefix ) !== '' ) { - $wiki = "$dbName-$prefix"; - } else { - $wiki = $dbName; - } - if ( $serverIndex === null || $refCount === null ) { - wfDebug( __METHOD__.": this connection was not opened as a foreign connection\n" ); - /** - * This can happen in code like: - * foreach ( $dbs as $db ) { - * $conn = $lb->getConnection( DB_SLAVE, array(), $db ); - * ... - * $lb->reuseConnection( $conn ); - * } - * When a connection to the local DB is opened in this way, reuseConnection() - * should be ignored - */ - return; - } - if ( $this->mConns['foreignUsed'][$serverIndex][$wiki] !== $conn ) { - throw new MWException( __METHOD__.": connection not found, has the connection been freed already?" ); - } - $conn->setLBInfo( 'foreignPoolRefCount', --$refCount ); - if ( $refCount <= 0 ) { - $this->mConns['foreignFree'][$serverIndex][$wiki] = $conn; - unset( $this->mConns['foreignUsed'][$serverIndex][$wiki] ); - wfDebug( __METHOD__.": freed connection $serverIndex/$wiki\n" ); - } else { - wfDebug( __METHOD__.": reference count for $serverIndex/$wiki reduced to $refCount\n" ); - } - } - - /** - * Open a connection to the server given by the specified index - * Index must be an actual index into the array. - * If the server is already open, returns it. - * - * On error, returns false, and the connection which caused the - * error will be available via $this->mErrorConnection. - * - * @param integer $i Server index - * @param string $wiki Wiki ID to open - * @return Database - * - * @access private - */ - function openConnection( $i, $wiki = false ) { - wfProfileIn( __METHOD__ ); - if ( $wiki !== false ) { - $conn = $this->openForeignConnection( $i, $wiki ); - wfProfileOut( __METHOD__); - return $conn; - } - if ( isset( $this->mConns['local'][$i][0] ) ) { - $conn = $this->mConns['local'][$i][0]; - } else { - $server = $this->mServers[$i]; - $server['serverIndex'] = $i; - $conn = $this->reallyOpenConnection( $server ); - if ( $conn->isOpen() ) { - $this->mConns['local'][$i][0] = $conn; - } else { - wfDebug( "Failed to connect to database $i at {$this->mServers[$i]['host']}\n" ); - $this->mErrorConnection = $conn; - $conn = false; - } - } - $this->mLastIndex = $i; - wfProfileOut( __METHOD__ ); - return $conn; - } - - /** - * Open a connection to a foreign DB, or return one if it is already open. - * - * Increments a reference count on the returned connection which locks the - * connection to the requested wiki. This reference count can be - * decremented by calling reuseConnection(). - * - * If a connection is open to the appropriate server already, but with the wrong - * database, it will be switched to the right database and returned, as long as - * it has been freed first with reuseConnection(). - * - * On error, returns false, and the connection which caused the - * error will be available via $this->mErrorConnection. - * - * @param integer $i Server index - * @param string $wiki Wiki ID to open - * @return Database - */ - function openForeignConnection( $i, $wiki ) { - wfProfileIn(__METHOD__); - list( $dbName, $prefix ) = wfSplitWikiID( $wiki ); - if ( isset( $this->mConns['foreignUsed'][$i][$wiki] ) ) { - // Reuse an already-used connection - $conn = $this->mConns['foreignUsed'][$i][$wiki]; - wfDebug( __METHOD__.": reusing connection $i/$wiki\n" ); - } elseif ( isset( $this->mConns['foreignFree'][$i][$wiki] ) ) { - // Reuse a free connection for the same wiki - $conn = $this->mConns['foreignFree'][$i][$wiki]; - unset( $this->mConns['foreignFree'][$i][$wiki] ); - $this->mConns['foreignUsed'][$i][$wiki] = $conn; - wfDebug( __METHOD__.": reusing free connection $i/$wiki\n" ); - } elseif ( !empty( $this->mConns['foreignFree'][$i] ) ) { - // Reuse a connection from another wiki - $conn = reset( $this->mConns['foreignFree'][$i] ); - $oldWiki = key( $this->mConns['foreignFree'][$i] ); - - if ( !$conn->selectDB( $dbName ) ) { - global $wguname; - $this->mLastError = "Error selecting database $dbName on server " . - $conn->getServer() . " from client host {$wguname['nodename']}\n"; - $this->mErrorConnection = $conn; - $conn = false; - } else { - $conn->tablePrefix( $prefix ); - unset( $this->mConns['foreignFree'][$i][$oldWiki] ); - $this->mConns['foreignUsed'][$i][$wiki] = $conn; - wfDebug( __METHOD__.": reusing free connection from $oldWiki for $wiki\n" ); - } - } else { - // Open a new connection - $server = $this->mServers[$i]; - $server['serverIndex'] = $i; - $server['foreignPoolRefCount'] = 0; - $conn = $this->reallyOpenConnection( $server, $dbName ); - if ( !$conn->isOpen() ) { - wfDebug( __METHOD__.": error opening connection for $i/$wiki\n" ); - $this->mErrorConnection = $conn; - $conn = false; - } else { - $this->mConns['foreignUsed'][$i][$wiki] = $conn; - wfDebug( __METHOD__.": opened new connection for $i/$wiki\n" ); - } - } - - // Increment reference count - if ( $conn ) { - $refCount = $conn->getLBInfo( 'foreignPoolRefCount' ); - $conn->setLBInfo( 'foreignPoolRefCount', $refCount + 1 ); - } - wfProfileOut(__METHOD__); - return $conn; - } - - /** - * Test if the specified index represents an open connection - * @access private - */ - function isOpen( $index ) { - if( !is_integer( $index ) ) { - return false; - } - return (bool)$this->getAnyOpenConnection( $index ); - } - - /** - * Really opens a connection. Uncached. - * Returns a Database object whether or not the connection was successful. - * @access private - */ - function reallyOpenConnection( $server, $dbNameOverride = false ) { - if( !is_array( $server ) ) { - throw new MWException( 'You must update your load-balancing configuration. See DefaultSettings.php entry for $wgDBservers.' ); - } - - extract( $server ); - if ( $dbNameOverride !== false ) { - $dbname = $dbNameOverride; - } - - # Get class for this database type - $class = 'Database' . ucfirst( $type ); - - # Create object - wfDebug( "Connecting to $host $dbname...\n" ); - $db = new $class( $host, $user, $password, $dbname, 1, $flags ); - if ( $db->isOpen() ) { - wfDebug( "Connected\n" ); - } else { - wfDebug( "Failed\n" ); - } - $db->setLBInfo( $server ); - if ( isset( $server['fakeSlaveLag'] ) ) { - $db->setFakeSlaveLag( $server['fakeSlaveLag'] ); - } - if ( isset( $server['fakeMaster'] ) ) { - $db->setFakeMaster( true ); - } - return $db; - } - - function reportConnectionError( &$conn ) { - wfProfileIn( __METHOD__ ); - # Prevent infinite recursion - - static $reporting = false; - if ( !$reporting ) { - $reporting = true; - if ( !is_object( $conn ) ) { - // No last connection, probably due to all servers being too busy - $conn = new Database; - if ( $this->mFailFunction ) { - $conn->failFunction( $this->mFailFunction ); - $conn->reportConnectionError( $this->mLastError ); - } else { - // If all servers were busy, mLastError will contain something sensible - throw new DBConnectionError( $conn, $this->mLastError ); - } - } else { - if ( $this->mFailFunction ) { - $conn->failFunction( $this->mFailFunction ); - } else { - $conn->failFunction( false ); - } - $server = $conn->getProperty( 'mServer' ); - $conn->reportConnectionError( "{$this->mLastError} ({$server})" ); - } - $reporting = false; - } - wfProfileOut( __METHOD__ ); - } - - function getWriterIndex() { - return 0; - } - - /** - * Returns true if the specified index is a valid server index - */ - function haveIndex( $i ) { - return array_key_exists( $i, $this->mServers ); - } - - /** - * Returns true if the specified index is valid and has non-zero load - */ - function isNonZeroLoad( $i ) { - return array_key_exists( $i, $this->mServers ) && $this->mLoads[$i] != 0; - } - - /** - * Get the number of defined servers (not the number of open connections) - */ - function getServerCount() { - return count( $this->mServers ); - } - - /** - * Get the host name or IP address of the server with the specified index - */ - function getServerName( $i ) { - if ( isset( $this->mServers[$i]['hostName'] ) ) { - return $this->mServers[$i]['hostName']; - } elseif ( isset( $this->mServers[$i]['host'] ) ) { - return $this->mServers[$i]['host']; - } else { - return ''; - } - } - - /** - * Get the current master position for chronology control purposes - * @return mixed - */ - function getMasterPos() { - # If this entire request was served from a slave without opening a connection to the - # master (however unlikely that may be), then we can fetch the position from the slave. - $masterConn = $this->getAnyOpenConnection( 0 ); - if ( !$masterConn ) { - for ( $i = 1; $i < count( $this->mServers ); $i++ ) { - $conn = $this->getAnyOpenConnection( $i ); - if ( $conn ) { - wfDebug( "Master pos fetched from slave\n" ); - return $conn->getSlavePos(); - } - } - } else { - wfDebug( "Master pos fetched from master\n" ); - return $masterConn->getMasterPos(); - } - return false; - } - - /** - * Close all open connections - */ - function closeAll() { - foreach ( $this->mConns as $conns2 ) { - foreach ( $conns2 as $conns3 ) { - foreach ( $conns3 as $conn ) { - $conn->close(); - } - } - } - $this->mConns = array( - 'local' => array(), - 'foreignFree' => array(), - 'foreignUsed' => array(), - ); - } - - /** - * Close a connection - * Using this function makes sure the LoadBalancer knows the connection is closed. - * If you use $conn->close() directly, the load balancer won't update its state. - */ - function closeConnecton( $conn ) { - $done = false; - foreach ( $this->mConns as $i1 => $conns2 ) { - foreach ( $conns2 as $i2 => $conns3 ) { - foreach ( $conns3 as $i3 => $candidateConn ) { - if ( $conn === $candidateConn ) { - $conn->close(); - unset( $this->mConns[$i1][$i2][$i3] ); - $done = true; - break; - } - } - } - } - if ( !$done ) { - $conn->close(); - } - } - - /** - * Commit transactions on all open connections - */ - function commitAll() { - foreach ( $this->mConns as $conns2 ) { - foreach ( $conns2 as $conns3 ) { - foreach ( $conns3 as $conn ) { - $conn->immediateCommit(); - } - } - } - } - - /* Issue COMMIT only on master, only if queries were done on connection */ - function commitMasterChanges() { - // Always 0, but who knows.. :) - $masterIndex = $this->getWriterIndex(); - foreach ( $this->mConns as $type => $conns2 ) { - if ( empty( $conns2[$masterIndex] ) ) { - continue; - } - foreach ( $conns2[$masterIndex] as $conn ) { - if ( $conn->lastQuery() != '' ) { - $conn->commit(); - } - } - } - } - - function waitTimeout( $value = NULL ) { - return wfSetVar( $this->mWaitTimeout, $value ); - } - - function getLaggedSlaveMode() { - return $this->mLaggedSlaveMode; - } - - /* Disables/enables lag checks */ - function allowLagged($mode=null) { - if ($mode===null) - return $this->mAllowLagged; - $this->mAllowLagged=$mode; - } - - function pingAll() { - $success = true; - foreach ( $this->mConns as $conns2 ) { - foreach ( $conns2 as $conns3 ) { - foreach ( $conns3 as $conn ) { - if ( !$conn->ping() ) { - $success = false; - } - } - } - } - return $success; - } - - /** - * Get the hostname and lag time of the most-lagged slave. - * This is useful for maintenance scripts that need to throttle their updates. - * May attempt to open connections to slaves on the default DB. - */ - function getMaxLag() { - $maxLag = -1; - $host = ''; - foreach ( $this->mServers as $i => $conn ) { - $conn = $this->getAnyOpenConnection( $i ); - if ( !$conn ) { - $conn = $this->openConnection( $i ); - } - if ( !$conn ) { - continue; - } - $lag = $conn->getLag(); - if ( $lag > $maxLag ) { - $maxLag = $lag; - $host = $this->mServers[$i]['host']; - } - } - return array( $host, $maxLag ); - } - - /** - * Get lag time for each server - * Results are cached for a short time in memcached, and indefinitely in the process cache - */ - function getLagTimes( $wiki = false ) { - wfProfileIn( __METHOD__ ); - - if ( !isset( $this->mLagTimes ) ) { - $expiry = 5; - $requestRate = 10; - - global $wgMemc; - $masterName = $this->getServerName( 0 ); - $memcKey = wfMemcKey( 'lag_times', $masterName ); - $times = $wgMemc->get( $memcKey ); - if ( $times ) { - # Randomly recache with probability rising over $expiry - $elapsed = time() - $times['timestamp']; - $chance = max( 0, ( $expiry - $elapsed ) * $requestRate ); - if ( mt_rand( 0, $chance ) != 0 ) { - unset( $times['timestamp'] ); - wfProfileOut( __METHOD__ ); - return $times; - } - wfIncrStats( 'lag_cache_miss_expired' ); - } else { - wfIncrStats( 'lag_cache_miss_absent' ); - } - - # Cache key missing or expired - - $times = array(); - foreach ( $this->mServers as $i => $conn ) { - if ($i == 0) { # Master - $times[$i] = 0; - } elseif ( false !== ( $conn = $this->getAnyOpenConnection( $i ) ) ) { - $times[$i] = $conn->getLag(); - } elseif ( false !== ( $conn = $this->openConnection( $i, $wiki ) ) ) { - $times[$i] = $conn->getLag(); - } - } - - # Add a timestamp key so we know when it was cached - $times['timestamp'] = time(); - $wgMemc->set( $memcKey, $times, $expiry ); - - # But don't give the timestamp to the caller - unset($times['timestamp']); - $this->mLagTimes = $times; - } - wfProfileOut( __METHOD__ ); - return $this->mLagTimes; - } -} diff --git a/includes/Parser.php b/includes/Parser.php deleted file mode 100644 index 4daa8f2956..0000000000 --- a/includes/Parser.php +++ /dev/null @@ -1,4974 +0,0 @@ - - * There are five main entry points into the Parser class: - * parse() - * produces HTML output - * preSaveTransform(). - * produces altered wiki markup. - * preprocess() - * removes HTML comments and expands templates - * cleanSig() - * Cleans a signature before saving it to preferences - * extractSections() - * Extracts sections from an article for section editing - * - * Globals used: - * objects: $wgLang, $wgContLang - * - * NOT $wgArticle, $wgUser or $wgTitle. Keep them away! - * - * settings: - * $wgUseTex*, $wgUseDynamicDates*, $wgInterwikiMagic*, - * $wgNamespacesWithSubpages, $wgAllowExternalImages*, - * $wgLocaltimezone, $wgAllowSpecialInclusion*, - * $wgMaxArticleSize* - * - * * only within ParserOptions - * - * - * @ingroup Parser - */ -class Parser -{ - /** - * Update this version number when the ParserOutput format - * changes in an incompatible way, so the parser cache - * can automatically discard old data. - */ - const VERSION = '1.6.4'; - - # Flags for Parser::setFunctionHook - # Also available as global constants from Defines.php - const SFH_NO_HASH = 1; - const SFH_OBJECT_ARGS = 2; - - # Constants needed for external link processing - # Everything except bracket, space, or control characters - const EXT_LINK_URL_CLASS = '[^][<>"\\x00-\\x20\\x7F]'; - const EXT_IMAGE_REGEX = '/^(http:\/\/|https:\/\/)([^][<>"\\x00-\\x20\\x7F]+) - \\/([A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]+)\\.((?i)gif|png|jpg|jpeg)$/Sx'; - - // State constants for the definition list colon extraction - const COLON_STATE_TEXT = 0; - const COLON_STATE_TAG = 1; - const COLON_STATE_TAGSTART = 2; - const COLON_STATE_CLOSETAG = 3; - const COLON_STATE_TAGSLASH = 4; - const COLON_STATE_COMMENT = 5; - const COLON_STATE_COMMENTDASH = 6; - const COLON_STATE_COMMENTDASHDASH = 7; - - // Flags for preprocessToDom - const PTD_FOR_INCLUSION = 1; - - // Allowed values for $this->mOutputType - // Parameter to startExternalParse(). - const OT_HTML = 1; - const OT_WIKI = 2; - const OT_PREPROCESS = 3; - const OT_MSG = 3; - - // Marker Suffix needs to be accessible staticly. - const MARKER_SUFFIX = "-QINU\x7f"; - - /**#@+ - * @private - */ - # Persistent: - var $mTagHooks, $mTransparentTagHooks, $mFunctionHooks, $mFunctionSynonyms, $mVariables, - $mImageParams, $mImageParamsMagicArray, $mStripList, $mMarkerIndex, $mPreprocessor, - $mExtLinkBracketedRegex, $mDefaultStripList, $mVarCache, $mConf; - - - # Cleared with clearState(): - var $mOutput, $mAutonumber, $mDTopen, $mStripState; - var $mIncludeCount, $mArgStack, $mLastSection, $mInPre; - var $mInterwikiLinkHolders, $mLinkHolders; - var $mIncludeSizes, $mPPNodeCount, $mDefaultSort; - var $mTplExpandCache; // empty-frame expansion cache - var $mTplRedirCache, $mTplDomCache, $mHeadings, $mDoubleUnderscores; - var $mExpensiveFunctionCount; // number of expensive parser function calls - - # Temporary - # These are variables reset at least once per parse regardless of $clearState - var $mOptions, // ParserOptions object - $mTitle, // Title context, used for self-link rendering and similar things - $mOutputType, // Output type, one of the OT_xxx constants - $ot, // Shortcut alias, see setOutputType() - $mRevisionId, // ID to display in {{REVISIONID}} tags - $mRevisionTimestamp, // The timestamp of the specified revision ID - $mRevIdForTs; // The revision ID which was used to fetch the timestamp - - /**#@-*/ - - /** - * Constructor - * - * @public - */ - function __construct( $conf = array() ) { - $this->mConf = $conf; - $this->mTagHooks = array(); - $this->mTransparentTagHooks = array(); - $this->mFunctionHooks = array(); - $this->mFunctionSynonyms = array( 0 => array(), 1 => array() ); - $this->mDefaultStripList = $this->mStripList = array( 'nowiki', 'gallery' ); - $this->mExtLinkBracketedRegex = '/\[(\b(' . wfUrlProtocols() . ')'. - '[^][<>"\\x00-\\x20\\x7F]+) *([^\]\\x0a\\x0d]*?)\]/S'; - $this->mVarCache = array(); - if ( isset( $conf['preprocessorClass'] ) ) { - $this->mPreprocessorClass = $conf['preprocessorClass']; - } else { - $this->mPreprocessorClass = 'Preprocessor_Hash'; - } - $this->mMarkerIndex = 0; - $this->mFirstCall = true; - } - - /** - * Do various kinds of initialisation on the first call of the parser - */ - function firstCallInit() { - if ( !$this->mFirstCall ) { - return; - } - $this->mFirstCall = false; - - wfProfileIn( __METHOD__ ); - - $this->setHook( 'pre', array( $this, 'renderPreTag' ) ); - CoreParserFunctions::register( $this ); - $this->initialiseVariables(); - - wfRunHooks( 'ParserFirstCallInit', array( &$this ) ); - wfProfileOut( __METHOD__ ); - } - - /** - * Clear Parser state - * - * @private - */ - function clearState() { - wfProfileIn( __METHOD__ ); - if ( $this->mFirstCall ) { - $this->firstCallInit(); - } - $this->mOutput = new ParserOutput; - $this->mAutonumber = 0; - $this->mLastSection = ''; - $this->mDTopen = false; - $this->mIncludeCount = array(); - $this->mStripState = new StripState; - $this->mArgStack = false; - $this->mInPre = false; - $this->mInterwikiLinkHolders = array( - 'texts' => array(), - 'titles' => array() - ); - $this->mLinkHolders = array( - 'namespaces' => array(), - 'dbkeys' => array(), - 'queries' => array(), - 'texts' => array(), - 'titles' => array() - ); - $this->mRevisionTimestamp = $this->mRevisionId = null; - - /** - * Prefix for temporary replacement strings for the multipass parser. - * \x07 should never appear in input as it's disallowed in XML. - * Using it at the front also gives us a little extra robustness - * since it shouldn't match when butted up against identifier-like - * string constructs. - * - * Must not consist of all title characters, or else it will change - * the behaviour of in a link. - */ - #$this->mUniqPrefix = "\x07UNIQ" . Parser::getRandomString(); - # Changed to \x7f to allow XML double-parsing -- TS - $this->mUniqPrefix = "\x7fUNIQ" . Parser::getRandomString(); - - - # Clear these on every parse, bug 4549 - $this->mTplExpandCache = $this->mTplRedirCache = $this->mTplDomCache = array(); - - $this->mShowToc = true; - $this->mForceTocPosition = false; - $this->mIncludeSizes = array( - 'post-expand' => 0, - 'arg' => 0, - ); - $this->mPPNodeCount = 0; - $this->mDefaultSort = false; - $this->mHeadings = array(); - $this->mDoubleUnderscores = array(); - $this->mExpensiveFunctionCount = 0; - - # Fix cloning - if ( isset( $this->mPreprocessor ) && $this->mPreprocessor->parser !== $this ) { - $this->mPreprocessor = null; - } - - wfRunHooks( 'ParserClearState', array( &$this ) ); - wfProfileOut( __METHOD__ ); - } - - function setOutputType( $ot ) { - $this->mOutputType = $ot; - // Shortcut alias - $this->ot = array( - 'html' => $ot == self::OT_HTML, - 'wiki' => $ot == self::OT_WIKI, - 'pre' => $ot == self::OT_PREPROCESS, - ); - } - - /** - * Set the context title - */ - function setTitle( $t ) { - if ( !$t || $t instanceof FakeTitle ) { - $t = Title::newFromText( 'NO TITLE' ); - } - if ( strval( $t->getFragment() ) !== '' ) { - # Strip the fragment to avoid various odd effects - $this->mTitle = clone $t; - $this->mTitle->setFragment( '' ); - } else { - $this->mTitle = $t; - } - } - - /** - * Accessor for mUniqPrefix. - * - * @public - */ - function uniqPrefix() { - if( !isset( $this->mUniqPrefix ) ) { - // @fixme this is probably *horribly wrong* - // LanguageConverter seems to want $wgParser's uniqPrefix, however - // if this is called for a parser cache hit, the parser may not - // have ever been initialized in the first place. - // Not really sure what the heck is supposed to be going on here. - return ''; - //throw new MWException( "Accessing uninitialized mUniqPrefix" ); - } - return $this->mUniqPrefix; - } - - /** - * Convert wikitext to HTML - * Do not call this function recursively. - * - * @param string $text Text we want to parse - * @param Title &$title A title object - * @param array $options - * @param boolean $linestart - * @param boolean $clearState - * @param int $revid number to pass in {{REVISIONID}} - * @return ParserOutput a ParserOutput - */ - public function parse( $text, &$title, $options, $linestart = true, $clearState = true, $revid = null ) { - /** - * First pass--just handle sections, pass the rest off - * to internalParse() which does all the real work. - */ - - global $wgUseTidy, $wgAlwaysUseTidy, $wgContLang; - $fname = 'Parser::parse-' . wfGetCaller(); - wfProfileIn( __METHOD__ ); - wfProfileIn( $fname ); - - if ( $clearState ) { - $this->clearState(); - } - - $this->mOptions = $options; - $this->setTitle( $title ); - $oldRevisionId = $this->mRevisionId; - $oldRevisionTimestamp = $this->mRevisionTimestamp; - if( $revid !== null ) { - $this->mRevisionId = $revid; - $this->mRevisionTimestamp = null; - } - $this->setOutputType( self::OT_HTML ); - wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) ); - # No more strip! - wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) ); - $text = $this->internalParse( $text ); - $text = $this->mStripState->unstripGeneral( $text ); - - # Clean up special characters, only run once, next-to-last before doBlockLevels - $fixtags = array( - # french spaces, last one Guillemet-left - # only if there is something before the space - '/(.) (?=\\?|:|;|!|%|\\302\\273)/' => '\\1 \\2', - # french spaces, Guillemet-right - '/(\\302\\253) /' => '\\1 ', - '/ (!\s*important)/' => ' \\1', #Beware of CSS magic word !important, bug #11874. - ); - $text = preg_replace( array_keys($fixtags), array_values($fixtags), $text ); - - # only once and last - $text = $this->doBlockLevels( $text, $linestart ); - - $this->replaceLinkHolders( $text ); - - # the position of the parserConvert() call should not be changed. it - # assumes that the links are all replaced and the only thing left - # is the mark. - # Side-effects: this calls $this->mOutput->setTitleText() - $text = $wgContLang->parserConvert( $text, $this ); - - $text = $this->mStripState->unstripNoWiki( $text ); - - wfRunHooks( 'ParserBeforeTidy', array( &$this, &$text ) ); - -//!JF Move to its own function - - $uniq_prefix = $this->mUniqPrefix; - $matches = array(); - $elements = array_keys( $this->mTransparentTagHooks ); - $text = Parser::extractTagsAndParams( $elements, $text, $matches, $uniq_prefix ); - - foreach( $matches as $marker => $data ) { - list( $element, $content, $params, $tag ) = $data; - $tagName = strtolower( $element ); - if( isset( $this->mTransparentTagHooks[$tagName] ) ) { - $output = call_user_func_array( $this->mTransparentTagHooks[$tagName], - array( $content, $params, $this ) ); - } else { - $output = $tag; - } - $this->mStripState->general->setPair( $marker, $output ); - } - $text = $this->mStripState->unstripGeneral( $text ); - - $text = Sanitizer::normalizeCharReferences( $text ); - - if (($wgUseTidy and $this->mOptions->mTidy) or $wgAlwaysUseTidy) { - $text = Parser::tidy($text); - } else { - # attempt to sanitize at least some nesting problems - # (bug #2702 and quite a few others) - $tidyregs = array( - # ''Something [http://www.cool.com cool''] --> - # Somethingcool> - '/(<([bi])>)(<([bi])>)?([^<]*)(<\/?a[^<]*>)([^<]*)(<\/\\4>)?(<\/\\2>)/' => - '\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9', - # fix up an anchor inside another anchor, only - # at least for a single single nested link (bug 3695) - '/(]+>)([^<]*)(]+>[^<]*)<\/a>(.*)<\/a>/' => - '\\1\\2\\3\\1\\4', - # fix div inside inline elements- doBlockLevels won't wrap a line which - # contains a div, so fix it up here; replace - # div with escaped text - '/(<([aib]) [^>]+>)([^<]*)(]*)>)(.*)(<\/div>)([^<]*)(<\/\\2>)/' => - '\\1\\3<div\\5>\\6</div>\\8\\9', - # remove empty italic or bold tag pairs, some - # introduced by rules above - '/<([bi])><\/\\1>/' => '', - ); - - $text = preg_replace( - array_keys( $tidyregs ), - array_values( $tidyregs ), - $text ); - } - global $wgExpensiveParserFunctionLimit; - if ( $this->mExpensiveFunctionCount > $wgExpensiveParserFunctionLimit ) { - $this->limitationWarn( 'expensive-parserfunction', $this->mExpensiveFunctionCount, $wgExpensiveParserFunctionLimit ); - } - - wfRunHooks( 'ParserAfterTidy', array( &$this, &$text ) ); - - # Information on include size limits, for the benefit of users who try to skirt them - if ( $this->mOptions->getEnableLimitReport() ) { - global $wgExpensiveParserFunctionLimit; - $max = $this->mOptions->getMaxIncludeSize(); - $PFreport = "Expensive parser function count: {$this->mExpensiveFunctionCount}/$wgExpensiveParserFunctionLimit\n"; - $limitReport = - "NewPP limit report\n" . - "Preprocessor node count: {$this->mPPNodeCount}/{$this->mOptions->mMaxPPNodeCount}\n" . - "Post-expand include size: {$this->mIncludeSizes['post-expand']}/$max bytes\n" . - "Template argument size: {$this->mIncludeSizes['arg']}/$max bytes\n". - $PFreport; - wfRunHooks( 'ParserLimitReport', array( $this, &$limitReport ) ); - $text .= "\n\n"; - } - $this->mOutput->setText( $text ); - $this->mRevisionId = $oldRevisionId; - $this->mRevisionTimestamp = $oldRevisionTimestamp; - wfProfileOut( $fname ); - wfProfileOut( __METHOD__ ); - - return $this->mOutput; - } - - /** - * Recursive parser entry point that can be called from an extension tag - * hook. - */ - function recursiveTagParse( $text ) { - wfProfileIn( __METHOD__ ); - wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) ); - wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) ); - $text = $this->internalParse( $text ); - wfProfileOut( __METHOD__ ); - return $text; - } - - /** - * Expand templates and variables in the text, producing valid, static wikitext. - * Also removes comments. - */ - function preprocess( $text, $title, $options, $revid = null ) { - wfProfileIn( __METHOD__ ); - $this->clearState(); - $this->setOutputType( self::OT_PREPROCESS ); - $this->mOptions = $options; - $this->setTitle( $title ); - if( $revid !== null ) { - $this->mRevisionId = $revid; - } - wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) ); - wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) ); - $text = $this->replaceVariables( $text ); - $text = $this->mStripState->unstripBoth( $text ); - wfProfileOut( __METHOD__ ); - return $text; - } - - /** - * Get a random string - * - * @private - * @static - */ - function getRandomString() { - return dechex(mt_rand(0, 0x7fffffff)) . dechex(mt_rand(0, 0x7fffffff)); - } - - function &getTitle() { return $this->mTitle; } - function getOptions() { return $this->mOptions; } - function getRevisionId() { return $this->mRevisionId; } - - function getFunctionLang() { - global $wgLang, $wgContLang; - - $target = $this->mOptions->getTargetLanguage(); - if ( $target !== null ) { - return $target; - } else { - return $this->mOptions->getInterfaceMessage() ? $wgLang : $wgContLang; - } - } - - /** - * Get a preprocessor object - */ - function getPreprocessor() { - if ( !isset( $this->mPreprocessor ) ) { - $class = $this->mPreprocessorClass; - $this->mPreprocessor = new $class( $this ); - } - return $this->mPreprocessor; - } - - /** - * Replaces all occurrences of HTML-style comments and the given tags - * in the text with a random marker and returns the next text. The output - * parameter $matches will be an associative array filled with data in - * the form: - * 'UNIQ-xxxxx' => array( - * 'element', - * 'tag content', - * array( 'param' => 'x' ), - * 'tag content' ) ) - * - * @param $elements list of element names. Comments are always extracted. - * @param $text Source text string. - * @param $uniq_prefix - * - * @public - * @static - */ - function extractTagsAndParams($elements, $text, &$matches, $uniq_prefix = ''){ - static $n = 1; - $stripped = ''; - $matches = array(); - - $taglist = implode( '|', $elements ); - $start = "/<($taglist)(\\s+[^>]*?|\\s*?)(\/?>)|<(!--)/i"; - - while ( '' != $text ) { - $p = preg_split( $start, $text, 2, PREG_SPLIT_DELIM_CAPTURE ); - $stripped .= $p[0]; - if( count( $p ) < 5 ) { - break; - } - if( count( $p ) > 5 ) { - // comment - $element = $p[4]; - $attributes = ''; - $close = ''; - $inside = $p[5]; - } else { - // tag - $element = $p[1]; - $attributes = $p[2]; - $close = $p[3]; - $inside = $p[4]; - } - - $marker = "$uniq_prefix-$element-" . sprintf('%08X', $n++) . self::MARKER_SUFFIX; - $stripped .= $marker; - - if ( $close === '/>' ) { - // Empty element tag, - $content = null; - $text = $inside; - $tail = null; - } else { - if( $element == '!--' ) { - $end = '/(-->)/'; - } else { - $end = "/(<\\/$element\\s*>)/i"; - } - $q = preg_split( $end, $inside, 2, PREG_SPLIT_DELIM_CAPTURE ); - $content = $q[0]; - if( count( $q ) < 3 ) { - # No end tag -- let it run out to the end of the text. - $tail = ''; - $text = ''; - } else { - $tail = $q[1]; - $text = $q[2]; - } - } - - $matches[$marker] = array( $element, - $content, - Sanitizer::decodeTagAttributes( $attributes ), - "<$element$attributes$close$content$tail" ); - } - return $stripped; - } - - /** - * Get a list of strippable XML-like elements - */ - function getStripList() { - global $wgRawHtml; - $elements = $this->mStripList; - if( $wgRawHtml ) { - $elements[] = 'html'; - } - if( $this->mOptions->getUseTeX() ) { - $elements[] = 'math'; - } - return $elements; - } - - /** - * @deprecated use replaceVariables - */ - function strip( $text, $state, $stripcomments = false , $dontstrip = array () ) { - return $text; - } - - /** - * Restores pre, math, and other extensions removed by strip() - * - * always call unstripNoWiki() after this one - * @private - * @deprecated use $this->mStripState->unstrip() - */ - function unstrip( $text, $state ) { - return $state->unstripGeneral( $text ); - } - - /** - * Always call this after unstrip() to preserve the order - * - * @private - * @deprecated use $this->mStripState->unstrip() - */ - function unstripNoWiki( $text, $state ) { - return $state->unstripNoWiki( $text ); - } - - /** - * @deprecated use $this->mStripState->unstripBoth() - */ - function unstripForHTML( $text ) { - return $this->mStripState->unstripBoth( $text ); - } - - /** - * Add an item to the strip state - * Returns the unique tag which must be inserted into the stripped text - * The tag will be replaced with the original text in unstrip() - * - * @private - */ - function insertStripItem( $text ) { - $rnd = "{$this->mUniqPrefix}-item-{$this->mMarkerIndex}-" . self::MARKER_SUFFIX; - $this->mMarkerIndex++; - $this->mStripState->general->setPair( $rnd, $text ); - return $rnd; - } - - /** - * Interface with html tidy, used if $wgUseTidy = true. - * If tidy isn't able to correct the markup, the original will be - * returned in all its glory with a warning comment appended. - * - * Either the external tidy program or the in-process tidy extension - * will be used depending on availability. Override the default - * $wgTidyInternal setting to disable the internal if it's not working. - * - * @param string $text Hideous HTML input - * @return string Corrected HTML output - * @public - * @static - */ - function tidy( $text ) { - global $wgTidyInternal; - $wrappedtext = ''. -'test'.$text.''; - if( $wgTidyInternal ) { - $correctedtext = Parser::internalTidy( $wrappedtext ); - } else { - $correctedtext = Parser::externalTidy( $wrappedtext ); - } - if( is_null( $correctedtext ) ) { - wfDebug( "Tidy error detected!\n" ); - return $text . "\n\n"; - } - return $correctedtext; - } - - /** - * Spawn an external HTML tidy process and get corrected markup back from it. - * - * @private - * @static - */ - function externalTidy( $text ) { - global $wgTidyConf, $wgTidyBin, $wgTidyOpts; - $fname = 'Parser::externalTidy'; - wfProfileIn( $fname ); - - $cleansource = ''; - $opts = ' -utf8'; - - $descriptorspec = array( - 0 => array('pipe', 'r'), - 1 => array('pipe', 'w'), - 2 => array('file', wfGetNull(), 'a') - ); - $pipes = array(); - $process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes); - if (is_resource($process)) { - // Theoretically, this style of communication could cause a deadlock - // here. If the stdout buffer fills up, then writes to stdin could - // block. This doesn't appear to happen with tidy, because tidy only - // writes to stdout after it's finished reading from stdin. Search - // for tidyParseStdin and tidySaveStdout in console/tidy.c - fwrite($pipes[0], $text); - fclose($pipes[0]); - while (!feof($pipes[1])) { - $cleansource .= fgets($pipes[1], 1024); - } - fclose($pipes[1]); - proc_close($process); - } - - wfProfileOut( $fname ); - - if( $cleansource == '' && $text != '') { - // Some kind of error happened, so we couldn't get the corrected text. - // Just give up; we'll use the source text and append a warning. - return null; - } else { - return $cleansource; - } - } - - /** - * Use the HTML tidy PECL extension to use the tidy library in-process, - * saving the overhead of spawning a new process. - * - * 'pear install tidy' should be able to compile the extension module. - * - * @private - * @static - */ - function internalTidy( $text ) { - global $wgTidyConf, $IP, $wgDebugTidy; - $fname = 'Parser::internalTidy'; - wfProfileIn( $fname ); - - $tidy = new tidy; - $tidy->parseString( $text, $wgTidyConf, 'utf8' ); - $tidy->cleanRepair(); - if( $tidy->getStatus() == 2 ) { - // 2 is magic number for fatal error - // http://www.php.net/manual/en/function.tidy-get-status.php - $cleansource = null; - } else { - $cleansource = tidy_get_output( $tidy ); - } - if ( $wgDebugTidy && $tidy->getStatus() > 0 ) { - $cleansource .= "', '-->', $tidy->errorBuffer ) . - "\n-->"; - } - - wfProfileOut( $fname ); - return $cleansource; - } - - /** - * parse the wiki syntax used to render tables - * - * @private - */ - function doTableStuff ( $text ) { - $fname = 'Parser::doTableStuff'; - wfProfileIn( $fname ); - - $lines = explode ( "\n" , $text ); - $td_history = array (); // Is currently a td tag open? - $last_tag_history = array (); // Save history of last lag activated (td, th or caption) - $tr_history = array (); // Is currently a tr tag open? - $tr_attributes = array (); // history of tr attributes - $has_opened_tr = array(); // Did this table open a element? - $indent_level = 0; // indent level of the table - foreach ( $lines as $key => $line ) - { - $line = trim ( $line ); - - if( $line == '' ) { // empty line, go to next line - continue; - } - $first_character = $line{0}; - $matches = array(); - - if ( preg_match( '/^(:*)\{\|(.*)$/' , $line , $matches ) ) { - // First check if we are starting a new table - $indent_level = strlen( $matches[1] ); - - $attributes = $this->mStripState->unstripBoth( $matches[2] ); - $attributes = Sanitizer::fixTagAttributes ( $attributes , 'table' ); - - $lines[$key] = str_repeat( '
    ' , $indent_level ) . ""; - array_push ( $td_history , false ); - array_push ( $last_tag_history , '' ); - array_push ( $tr_history , false ); - array_push ( $tr_attributes , '' ); - array_push ( $has_opened_tr , false ); - } else if ( count ( $td_history ) == 0 ) { - // Don't do any of the following - continue; - } else if ( substr ( $line , 0 , 2 ) == '|}' ) { - // We are ending a table - $line = '' . substr ( $line , 2 ); - $last_tag = array_pop ( $last_tag_history ); - - if ( !array_pop ( $has_opened_tr ) ) { - $line = "{$line}"; - } - - if ( array_pop ( $tr_history ) ) { - $line = "{$line}"; - } - - if ( array_pop ( $td_history ) ) { - $line = "{$line}"; - } - array_pop ( $tr_attributes ); - $lines[$key] = $line . str_repeat( '
    ' , $indent_level ); - } else if ( substr ( $line , 0 , 2 ) == '|-' ) { - // Now we have a table row - $line = preg_replace( '#^\|-+#', '', $line ); - - // Whats after the tag is now only attributes - $attributes = $this->mStripState->unstripBoth( $line ); - $attributes = Sanitizer::fixTagAttributes ( $attributes , 'tr' ); - array_pop ( $tr_attributes ); - array_push ( $tr_attributes , $attributes ); - - $line = ''; - $last_tag = array_pop ( $last_tag_history ); - array_pop ( $has_opened_tr ); - array_push ( $has_opened_tr , true ); - - if ( array_pop ( $tr_history ) ) { - $line = ''; - } - - if ( array_pop ( $td_history ) ) { - $line = "{$line}"; - } - - $lines[$key] = $line; - array_push ( $tr_history , false ); - array_push ( $td_history , false ); - array_push ( $last_tag_history , '' ); - } - else if ( $first_character == '|' || $first_character == '!' || substr ( $line , 0 , 2 ) == '|+' ) { - // This might be cell elements, td, th or captions - if ( substr ( $line , 0 , 2 ) == '|+' ) { - $first_character = '+'; - $line = substr ( $line , 1 ); - } - - $line = substr ( $line , 1 ); - - if ( $first_character == '!' ) { - $line = str_replace ( '!!' , '||' , $line ); - } - - // Split up multiple cells on the same line. - // FIXME : This can result in improper nesting of tags processed - // by earlier parser steps, but should avoid splitting up eg - // attribute values containing literal "||". - $cells = StringUtils::explodeMarkup( '||' , $line ); - - $lines[$key] = ''; - - // Loop through each table cell - foreach ( $cells as $cell ) - { - $previous = ''; - if ( $first_character != '+' ) - { - $tr_after = array_pop ( $tr_attributes ); - if ( !array_pop ( $tr_history ) ) { - $previous = "\n"; - } - array_push ( $tr_history , true ); - array_push ( $tr_attributes , '' ); - array_pop ( $has_opened_tr ); - array_push ( $has_opened_tr , true ); - } - - $last_tag = array_pop ( $last_tag_history ); - - if ( array_pop ( $td_history ) ) { - $previous = "{$previous}"; - } - - if ( $first_character == '|' ) { - $last_tag = 'td'; - } else if ( $first_character == '!' ) { - $last_tag = 'th'; - } else if ( $first_character == '+' ) { - $last_tag = 'caption'; - } else { - $last_tag = ''; - } - - array_push ( $last_tag_history , $last_tag ); - - // A cell could contain both parameters and data - $cell_data = explode ( '|' , $cell , 2 ); - - // Bug 553: Note that a '|' inside an invalid link should not - // be mistaken as delimiting cell parameters - if ( strpos( $cell_data[0], '[[' ) !== false ) { - $cell = "{$previous}<{$last_tag}>{$cell}"; - } else if ( count ( $cell_data ) == 1 ) - $cell = "{$previous}<{$last_tag}>{$cell_data[0]}"; - else { - $attributes = $this->mStripState->unstripBoth( $cell_data[0] ); - $attributes = Sanitizer::fixTagAttributes( $attributes , $last_tag ); - $cell = "{$previous}<{$last_tag}{$attributes}>{$cell_data[1]}"; - } - - $lines[$key] .= $cell; - array_push ( $td_history , true ); - } - } - } - - // Closing open td, tr && table - while ( count ( $td_history ) > 0 ) - { - if ( array_pop ( $td_history ) ) { - $lines[] = '' ; - } - if ( array_pop ( $tr_history ) ) { - $lines[] = '' ; - } - if ( !array_pop ( $has_opened_tr ) ) { - $lines[] = "" ; - } - - $lines[] = '' ; - } - - $output = implode ( "\n" , $lines ) ; - - // special case: don't return empty table - if( $output == "\n\n
    " ) { - $output = ''; - } - - wfProfileOut( $fname ); - - return $output; - } - - /** - * Helper function for parse() that transforms wiki markup into - * HTML. Only called for $mOutputType == self::OT_HTML. - * - * @private - */ - function internalParse( $text ) { - $isMain = true; - $fname = 'Parser::internalParse'; - wfProfileIn( $fname ); - - # Hook to suspend the parser in this state - if ( !wfRunHooks( 'ParserBeforeInternalParse', array( &$this, &$text, &$this->mStripState ) ) ) { - wfProfileOut( $fname ); - return $text ; - } - - $text = $this->replaceVariables( $text ); - $text = Sanitizer::removeHTMLtags( $text, array( &$this, 'attributeStripCallback' ), false, array_keys( $this->mTransparentTagHooks ) ); - wfRunHooks( 'InternalParseBeforeLinks', array( &$this, &$text, &$this->mStripState ) ); - - // Tables need to come after variable replacement for things to work - // properly; putting them before other transformations should keep - // exciting things like link expansions from showing up in surprising - // places. - $text = $this->doTableStuff( $text ); - - $text = preg_replace( '/(^|\n)-----*/', '\\1
    ', $text ); - - $text = $this->doDoubleUnderscore( $text ); - $text = $this->doHeadings( $text ); - if($this->mOptions->getUseDynamicDates()) { - $df = DateFormatter::getInstance(); - $text = $df->reformat( $this->mOptions->getDateFormat(), $text ); - } - $text = $this->doAllQuotes( $text ); - $text = $this->replaceInternalLinks( $text ); - $text = $this->replaceExternalLinks( $text ); - - # replaceInternalLinks may sometimes leave behind - # absolute URLs, which have to be masked to hide them from replaceExternalLinks - $text = str_replace($this->mUniqPrefix."NOPARSE", "", $text); - - $text = $this->doMagicLinks( $text ); - $text = $this->formatHeadings( $text, $isMain ); - - wfProfileOut( $fname ); - return $text; - } - - /** - * Replace special strings like "ISBN xxx" and "RFC xxx" with - * magic external links. - * - * @private - */ - function doMagicLinks( $text ) { - wfProfileIn( __METHOD__ ); - $text = preg_replace_callback( - '!(?: # Start cases - | # Skip link text - <.*?> | # Skip stuff inside HTML elements - (?:RFC|PMID)\s+([0-9]+) | # RFC or PMID, capture number as m[1] - ISBN\s+(\b # ISBN, capture number as m[2] - (?: 97[89] [\ \-]? )? # optional 13-digit ISBN prefix - (?: [0-9] [\ \-]? ){9} # 9 digits with opt. delimiters - [0-9Xx] # check digit - \b) - )!x', array( &$this, 'magicLinkCallback' ), $text ); - wfProfileOut( __METHOD__ ); - return $text; - } - - function magicLinkCallback( $m ) { - if ( substr( $m[0], 0, 1 ) == '<' ) { - # Skip HTML element - return $m[0]; - } elseif ( substr( $m[0], 0, 4 ) == 'ISBN' ) { - $isbn = $m[2]; - $num = strtr( $isbn, array( - '-' => '', - ' ' => '', - 'x' => 'X', - )); - $titleObj = SpecialPage::getTitleFor( 'Booksources', $num ); - $text = 'ISBN $isbn"; - } else { - if ( substr( $m[0], 0, 3 ) == 'RFC' ) { - $keyword = 'RFC'; - $urlmsg = 'rfcurl'; - $id = $m[1]; - } elseif ( substr( $m[0], 0, 4 ) == 'PMID' ) { - $keyword = 'PMID'; - $urlmsg = 'pubmedurl'; - $id = $m[1]; - } else { - throw new MWException( __METHOD__.': unrecognised match type "' . - substr($m[0], 0, 20 ) . '"' ); - } - - $url = wfMsg( $urlmsg, $id); - $sk = $this->mOptions->getSkin(); - $la = $sk->getExternalLinkAttributes( $url, $keyword.$id ); - $text = "{$keyword} {$id}"; - } - return $text; - } - - /** - * Parse headers and return html - * - * @private - */ - function doHeadings( $text ) { - $fname = 'Parser::doHeadings'; - wfProfileIn( $fname ); - for ( $i = 6; $i >= 1; --$i ) { - $h = str_repeat( '=', $i ); - $text = preg_replace( "/^$h(.+)$h\\s*$/m", - "\\1", $text ); - } - wfProfileOut( $fname ); - return $text; - } - - /** - * Replace single quotes with HTML markup - * @private - * @return string the altered text - */ - function doAllQuotes( $text ) { - $fname = 'Parser::doAllQuotes'; - wfProfileIn( $fname ); - $outtext = ''; - $lines = explode( "\n", $text ); - foreach ( $lines as $line ) { - $outtext .= $this->doQuotes ( $line ) . "\n"; - } - $outtext = substr($outtext, 0,-1); - wfProfileOut( $fname ); - return $outtext; - } - - /** - * Helper function for doAllQuotes() - */ - public function doQuotes( $text ) { - $arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE ); - if ( count( $arr ) == 1 ) - return $text; - else - { - # First, do some preliminary work. This may shift some apostrophes from - # being mark-up to being text. It also counts the number of occurrences - # of bold and italics mark-ups. - $i = 0; - $numbold = 0; - $numitalics = 0; - foreach ( $arr as $r ) - { - if ( ( $i % 2 ) == 1 ) - { - # If there are ever four apostrophes, assume the first is supposed to - # be text, and the remaining three constitute mark-up for bold text. - if ( strlen( $arr[$i] ) == 4 ) - { - $arr[$i-1] .= "'"; - $arr[$i] = "'''"; - } - # If there are more than 5 apostrophes in a row, assume they're all - # text except for the last 5. - else if ( strlen( $arr[$i] ) > 5 ) - { - $arr[$i-1] .= str_repeat( "'", strlen( $arr[$i] ) - 5 ); - $arr[$i] = "'''''"; - } - # Count the number of occurrences of bold and italics mark-ups. - # We are not counting sequences of five apostrophes. - if ( strlen( $arr[$i] ) == 2 ) { $numitalics++; } - else if ( strlen( $arr[$i] ) == 3 ) { $numbold++; } - else if ( strlen( $arr[$i] ) == 5 ) { $numitalics++; $numbold++; } - } - $i++; - } - - # If there is an odd number of both bold and italics, it is likely - # that one of the bold ones was meant to be an apostrophe followed - # by italics. Which one we cannot know for certain, but it is more - # likely to be one that has a single-letter word before it. - if ( ( $numbold % 2 == 1 ) && ( $numitalics % 2 == 1 ) ) - { - $i = 0; - $firstsingleletterword = -1; - $firstmultiletterword = -1; - $firstspace = -1; - foreach ( $arr as $r ) - { - if ( ( $i % 2 == 1 ) and ( strlen( $r ) == 3 ) ) - { - $x1 = substr ($arr[$i-1], -1); - $x2 = substr ($arr[$i-1], -2, 1); - if ($x1 == ' ') { - if ($firstspace == -1) $firstspace = $i; - } else if ($x2 == ' ') { - if ($firstsingleletterword == -1) $firstsingleletterword = $i; - } else { - if ($firstmultiletterword == -1) $firstmultiletterword = $i; - } - } - $i++; - } - - # If there is a single-letter word, use it! - if ($firstsingleletterword > -1) - { - $arr [ $firstsingleletterword ] = "''"; - $arr [ $firstsingleletterword-1 ] .= "'"; - } - # If not, but there's a multi-letter word, use that one. - else if ($firstmultiletterword > -1) - { - $arr [ $firstmultiletterword ] = "''"; - $arr [ $firstmultiletterword-1 ] .= "'"; - } - # ... otherwise use the first one that has neither. - # (notice that it is possible for all three to be -1 if, for example, - # there is only one pentuple-apostrophe in the line) - else if ($firstspace > -1) - { - $arr [ $firstspace ] = "''"; - $arr [ $firstspace-1 ] .= "'"; - } - } - - # Now let's actually convert our apostrophic mush to HTML! - $output = ''; - $buffer = ''; - $state = ''; - $i = 0; - foreach ($arr as $r) - { - if (($i % 2) == 0) - { - if ($state == 'both') - $buffer .= $r; - else - $output .= $r; - } - else - { - if (strlen ($r) == 2) - { - if ($state == 'i') - { $output .= ''; $state = ''; } - else if ($state == 'bi') - { $output .= ''; $state = 'b'; } - else if ($state == 'ib') - { $output .= ''; $state = 'b'; } - else if ($state == 'both') - { $output .= ''.$buffer.''; $state = 'b'; } - else # $state can be 'b' or '' - { $output .= ''; $state .= 'i'; } - } - else if (strlen ($r) == 3) - { - if ($state == 'b') - { $output .= ''; $state = ''; } - else if ($state == 'bi') - { $output .= ''; $state = 'i'; } - else if ($state == 'ib') - { $output .= ''; $state = 'i'; } - else if ($state == 'both') - { $output .= ''.$buffer.''; $state = 'i'; } - else # $state can be 'i' or '' - { $output .= ''; $state .= 'b'; } - } - else if (strlen ($r) == 5) - { - if ($state == 'b') - { $output .= ''; $state = 'i'; } - else if ($state == 'i') - { $output .= ''; $state = 'b'; } - else if ($state == 'bi') - { $output .= ''; $state = ''; } - else if ($state == 'ib') - { $output .= ''; $state = ''; } - else if ($state == 'both') - { $output .= ''.$buffer.''; $state = ''; } - else # ($state == '') - { $buffer = ''; $state = 'both'; } - } - } - $i++; - } - # Now close all remaining tags. Notice that the order is important. - if ($state == 'b' || $state == 'ib') - $output .= ''; - if ($state == 'i' || $state == 'bi' || $state == 'ib') - $output .= ''; - if ($state == 'bi') - $output .= ''; - # There might be lonely ''''', so make sure we have a buffer - if ($state == 'both' && $buffer) - $output .= ''.$buffer.''; - return $output; - } - } - - /** - * Replace external links - * - * Note: this is all very hackish and the order of execution matters a lot. - * Make sure to run maintenance/parserTests.php if you change this code. - * - * @private - */ - function replaceExternalLinks( $text ) { - global $wgContLang; - $fname = 'Parser::replaceExternalLinks'; - wfProfileIn( $fname ); - - $sk = $this->mOptions->getSkin(); - - $bits = preg_split( $this->mExtLinkBracketedRegex, $text, -1, PREG_SPLIT_DELIM_CAPTURE ); - - $s = $this->replaceFreeExternalLinks( array_shift( $bits ) ); - - $i = 0; - while ( $i' (which were escaped by - # removeHTMLtags()) should not be included in - # URLs, per RFC 2396. - $m2 = array(); - if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) { - $text = substr($url, $m2[0][1]) . ' ' . $text; - $url = substr($url, 0, $m2[0][1]); - } - - # If the link text is an image URL, replace it with an tag - # This happened by accident in the original parser, but some people used it extensively - $img = $this->maybeMakeExternalImage( $text ); - if ( $img !== false ) { - $text = $img; - } - - $dtrail = ''; - - # Set linktype for CSS - if URL==text, link is essentially free - $linktype = ($text == $url) ? 'free' : 'text'; - - # No link text, e.g. [http://domain.tld/some.link] - if ( $text == '' ) { - # Autonumber if allowed. See bug #5918 - if ( strpos( wfUrlProtocols(), substr($protocol, 0, strpos($protocol, ':')) ) !== false ) { - $text = '[' . ++$this->mAutonumber . ']'; - $linktype = 'autonumber'; - } else { - # Otherwise just use the URL - $text = htmlspecialchars( $url ); - $linktype = 'free'; - } - } else { - # Have link text, e.g. [http://domain.tld/some.link text]s - # Check for trail - list( $dtrail, $trail ) = Linker::splitTrail( $trail ); - } - - $text = $wgContLang->markNoConversion($text); - - $url = Sanitizer::cleanUrl( $url ); - - # Process the trail (i.e. everything after this link up until start of the next link), - # replacing any non-bracketed links - $trail = $this->replaceFreeExternalLinks( $trail ); - - # Use the encoded URL - # This means that users can paste URLs directly into the text - # Funny characters like ö aren't valid in URLs anyway - # This was changed in August 2004 - $s .= $sk->makeExternalLink( $url, $text, false, $linktype, $this->mTitle->getNamespace() ) . $dtrail . $trail; - - # Register link in the output object. - # Replace unnecessary URL escape codes with the referenced character - # This prevents spammers from hiding links from the filters - $pasteurized = Parser::replaceUnusualEscapes( $url ); - $this->mOutput->addExternalLink( $pasteurized ); - } - - wfProfileOut( $fname ); - return $s; - } - - /** - * Replace anything that looks like a URL with a link - * @private - */ - function replaceFreeExternalLinks( $text ) { - global $wgContLang; - $fname = 'Parser::replaceFreeExternalLinks'; - wfProfileIn( $fname ); - - $bits = preg_split( '/(\b(?:' . wfUrlProtocols() . '))/S', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); - $s = array_shift( $bits ); - $i = 0; - - $sk = $this->mOptions->getSkin(); - - while ( $i < count( $bits ) ){ - $protocol = $bits[$i++]; - $remainder = $bits[$i++]; - - $m = array(); - if ( preg_match( '/^('.self::EXT_LINK_URL_CLASS.'+)(.*)$/s', $remainder, $m ) ) { - # Found some characters after the protocol that look promising - $url = $protocol . $m[1]; - $trail = $m[2]; - - # special case: handle urls as url args: - # http://www.example.com/foo?=http://www.example.com/bar - if(strlen($trail) == 0 && - isset($bits[$i]) && - preg_match('/^'. wfUrlProtocols() . '$/S', $bits[$i]) && - preg_match( '/^('.self::EXT_LINK_URL_CLASS.'+)(.*)$/s', $bits[$i + 1], $m )) - { - # add protocol, arg - $url .= $bits[$i] . $m[1]; # protocol, url as arg to previous link - $i += 2; - $trail = $m[2]; - } - - # The characters '<' and '>' (which were escaped by - # removeHTMLtags()) should not be included in - # URLs, per RFC 2396. - $m2 = array(); - if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) { - $trail = substr($url, $m2[0][1]) . $trail; - $url = substr($url, 0, $m2[0][1]); - } - - # Move trailing punctuation to $trail - $sep = ',;\.:!?'; - # If there is no left bracket, then consider right brackets fair game too - if ( strpos( $url, '(' ) === false ) { - $sep .= ')'; - } - - $numSepChars = strspn( strrev( $url ), $sep ); - if ( $numSepChars ) { - $trail = substr( $url, -$numSepChars ) . $trail; - $url = substr( $url, 0, -$numSepChars ); - } - - $url = Sanitizer::cleanUrl( $url ); - - # Is this an external image? - $text = $this->maybeMakeExternalImage( $url ); - if ( $text === false ) { - # Not an image, make a link - $text = $sk->makeExternalLink( $url, $wgContLang->markNoConversion($url), true, 'free', $this->mTitle->getNamespace() ); - # Register it in the output object... - # Replace unnecessary URL escape codes with their equivalent characters - $pasteurized = Parser::replaceUnusualEscapes( $url ); - $this->mOutput->addExternalLink( $pasteurized ); - } - $s .= $text . $trail; - } else { - $s .= $protocol . $remainder; - } - } - wfProfileOut( $fname ); - return $s; - } - - /** - * Replace unusual URL escape codes with their equivalent characters - * @param string - * @return string - * @static - * @todo This can merge genuinely required bits in the path or query string, - * breaking legit URLs. A proper fix would treat the various parts of - * the URL differently; as a workaround, just use the output for - * statistical records, not for actual linking/output. - */ - static function replaceUnusualEscapes( $url ) { - return preg_replace_callback( '/%[0-9A-Fa-f]{2}/', - array( 'Parser', 'replaceUnusualEscapesCallback' ), $url ); - } - - /** - * Callback function used in replaceUnusualEscapes(). - * Replaces unusual URL escape codes with their equivalent character - * @static - * @private - */ - private static function replaceUnusualEscapesCallback( $matches ) { - $char = urldecode( $matches[0] ); - $ord = ord( $char ); - // Is it an unsafe or HTTP reserved character according to RFC 1738? - if ( $ord > 32 && $ord < 127 && strpos( '<>"#{}|\^~[]`;/?', $char ) === false ) { - // No, shouldn't be escaped - return $char; - } else { - // Yes, leave it escaped - return $matches[0]; - } - } - - /** - * make an image if it's allowed, either through the global - * option or through the exception - * @private - */ - function maybeMakeExternalImage( $url ) { - $sk = $this->mOptions->getSkin(); - $imagesfrom = $this->mOptions->getAllowExternalImagesFrom(); - $imagesexception = !empty($imagesfrom); - $text = false; - if ( $this->mOptions->getAllowExternalImages() - || ( $imagesexception && strpos( $url, $imagesfrom ) === 0 ) ) { - if ( preg_match( self::EXT_IMAGE_REGEX, $url ) ) { - # Image found - $text = $sk->makeExternalImage( htmlspecialchars( $url ) ); - } - } - return $text; - } - - /** - * Process [[ ]] wikilinks - * - * @private - */ - function replaceInternalLinks( $s ) { - global $wgContLang; - static $fname = 'Parser::replaceInternalLinks' ; - - wfProfileIn( $fname ); - - wfProfileIn( $fname.'-setup' ); - static $tc = FALSE; - # the % is needed to support urlencoded titles as well - if ( !$tc ) { $tc = Title::legalChars() . '#%'; } - - $sk = $this->mOptions->getSkin(); - - #split the entire text string on occurences of [[ - $a = explode( '[[', ' ' . $s ); - #get the first element (all text up to first [[), and remove the space we added - $s = array_shift( $a ); - $s = substr( $s, 1 ); - - # Match a link having the form [[namespace:link|alternate]]trail - static $e1 = FALSE; - if ( !$e1 ) { $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD"; } - # Match cases where there is no "]]", which might still be images - static $e1_img = FALSE; - if ( !$e1_img ) { $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD"; } - - $useLinkPrefixExtension = $wgContLang->linkPrefixExtension(); - $e2 = null; - if ( $useLinkPrefixExtension ) { - # Match the end of a line for a word that's not followed by whitespace, - # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched - $e2 = wfMsgForContent( 'linkprefix' ); - } - - if( is_null( $this->mTitle ) ) { - wfProfileOut( $fname ); - wfProfileOut( $fname.'-setup' ); - throw new MWException( __METHOD__.": \$this->mTitle is null\n" ); - } - $nottalk = !$this->mTitle->isTalkPage(); - - if ( $useLinkPrefixExtension ) { - $m = array(); - if ( preg_match( $e2, $s, $m ) ) { - $first_prefix = $m[2]; - } else { - $first_prefix = false; - } - } else { - $prefix = ''; - } - - if($wgContLang->hasVariants()) { - $selflink = $wgContLang->convertLinkToAllVariants($this->mTitle->getPrefixedText()); - } else { - $selflink = array($this->mTitle->getPrefixedText()); - } - $useSubpages = $this->areSubpagesAllowed(); - wfProfileOut( $fname.'-setup' ); - - # Loop for each link - for ($k = 0; isset( $a[$k] ); $k++) { - $line = $a[$k]; - if ( $useLinkPrefixExtension ) { - wfProfileIn( $fname.'-prefixhandling' ); - if ( preg_match( $e2, $s, $m ) ) { - $prefix = $m[2]; - $s = $m[1]; - } else { - $prefix=''; - } - # first link - if($first_prefix) { - $prefix = $first_prefix; - $first_prefix = false; - } - wfProfileOut( $fname.'-prefixhandling' ); - } - - $might_be_img = false; - - wfProfileIn( "$fname-e1" ); - if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt - $text = $m[2]; - # If we get a ] at the beginning of $m[3] that means we have a link that's something like: - # [[Image:Foo.jpg|[http://example.com desc]]] <- having three ] in a row fucks up, - # the real problem is with the $e1 regex - # See bug 1300. - # - # Still some problems for cases where the ] is meant to be outside punctuation, - # and no image is in sight. See bug 2095. - # - if( $text !== '' && - substr( $m[3], 0, 1 ) === ']' && - strpos($text, '[') !== false - ) - { - $text .= ']'; # so that replaceExternalLinks($text) works later - $m[3] = substr( $m[3], 1 ); - } - # fix up urlencoded title texts - if( strpos( $m[1], '%' ) !== false ) { - # Should anchors '#' also be rejected? - $m[1] = str_replace( array('<', '>'), array('<', '>'), urldecode($m[1]) ); - } - $trail = $m[3]; - } elseif( preg_match($e1_img, $line, $m) ) { # Invalid, but might be an image with a link in its caption - $might_be_img = true; - $text = $m[2]; - if ( strpos( $m[1], '%' ) !== false ) { - $m[1] = urldecode($m[1]); - } - $trail = ""; - } else { # Invalid form; output directly - $s .= $prefix . '[[' . $line ; - wfProfileOut( "$fname-e1" ); - continue; - } - wfProfileOut( "$fname-e1" ); - wfProfileIn( "$fname-misc" ); - - # Don't allow internal links to pages containing - # PROTO: where PROTO is a valid URL protocol; these - # should be external links. - if (preg_match('/^\b(?:' . wfUrlProtocols() . ')/', $m[1])) { - $s .= $prefix . '[[' . $line ; - wfProfileOut( "$fname-misc" ); - continue; - } - - # Make subpage if necessary - if( $useSubpages ) { - $link = $this->maybeDoSubpageLink( $m[1], $text ); - } else { - $link = $m[1]; - } - - $noforce = (substr($m[1], 0, 1) != ':'); - if (!$noforce) { - # Strip off leading ':' - $link = substr($link, 1); - } - - wfProfileOut( "$fname-misc" ); - wfProfileIn( "$fname-title" ); - $nt = Title::newFromText( $this->mStripState->unstripNoWiki($link) ); - if( !$nt ) { - $s .= $prefix . '[[' . $line; - wfProfileOut( "$fname-title" ); - continue; - } - - $ns = $nt->getNamespace(); - $iw = $nt->getInterWiki(); - wfProfileOut( "$fname-title" ); - - if ($might_be_img) { # if this is actually an invalid link - wfProfileIn( "$fname-might_be_img" ); - if ($ns == NS_IMAGE && $noforce) { #but might be an image - $found = false; - while (isset ($a[$k+1]) ) { - #look at the next 'line' to see if we can close it there - $spliced = array_splice( $a, $k + 1, 1 ); - $next_line = array_shift( $spliced ); - $m = explode( ']]', $next_line, 3 ); - if ( count( $m ) == 3 ) { - # the first ]] closes the inner link, the second the image - $found = true; - $text .= "[[{$m[0]}]]{$m[1]}"; - $trail = $m[2]; - break; - } elseif ( count( $m ) == 2 ) { - #if there's exactly one ]] that's fine, we'll keep looking - $text .= "[[{$m[0]}]]{$m[1]}"; - } else { - #if $next_line is invalid too, we need look no further - $text .= '[[' . $next_line; - break; - } - } - if ( !$found ) { - # we couldn't find the end of this imageLink, so output it raw - #but don't ignore what might be perfectly normal links in the text we've examined - $text = $this->replaceInternalLinks($text); - $s .= "{$prefix}[[$link|$text"; - # note: no $trail, because without an end, there *is* no trail - wfProfileOut( "$fname-might_be_img" ); - continue; - } - } else { #it's not an image, so output it raw - $s .= "{$prefix}[[$link|$text"; - # note: no $trail, because without an end, there *is* no trail - wfProfileOut( "$fname-might_be_img" ); - continue; - } - wfProfileOut( "$fname-might_be_img" ); - } - - $wasblank = ( '' == $text ); - if( $wasblank ) $text = $link; - - # Link not escaped by : , create the various objects - if( $noforce ) { - - # Interwikis - wfProfileIn( "$fname-interwiki" ); - if( $iw && $this->mOptions->getInterwikiMagic() && $nottalk && $wgContLang->getLanguageName( $iw ) ) { - $this->mOutput->addLanguageLink( $nt->getFullText() ); - $s = rtrim($s . $prefix); - $s .= trim($trail, "\n") == '' ? '': $prefix . $trail; - wfProfileOut( "$fname-interwiki" ); - continue; - } - wfProfileOut( "$fname-interwiki" ); - - if ( $ns == NS_IMAGE ) { - wfProfileIn( "$fname-image" ); - if ( !wfIsBadImage( $nt->getDBkey(), $this->mTitle ) ) { - # recursively parse links inside the image caption - # actually, this will parse them in any other parameters, too, - # but it might be hard to fix that, and it doesn't matter ATM - $text = $this->replaceExternalLinks($text); - $text = $this->replaceInternalLinks($text); - - # cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them - $s .= $prefix . $this->armorLinks( $this->makeImage( $nt, $text ) ) . $trail; - $this->mOutput->addImage( $nt->getDBkey() ); - - wfProfileOut( "$fname-image" ); - continue; - } else { - # We still need to record the image's presence on the page - $this->mOutput->addImage( $nt->getDBkey() ); - } - wfProfileOut( "$fname-image" ); - - } - - if ( $ns == NS_CATEGORY ) { - wfProfileIn( "$fname-category" ); - $s = rtrim($s . "\n"); # bug 87 - - if ( $wasblank ) { - $sortkey = $this->getDefaultSort(); - } else { - $sortkey = $text; - } - $sortkey = Sanitizer::decodeCharReferences( $sortkey ); - $sortkey = str_replace( "\n", '', $sortkey ); - $sortkey = $wgContLang->convertCategoryKey( $sortkey ); - $this->mOutput->addCategory( $nt->getDBkey(), $sortkey ); - - /** - * Strip the whitespace Category links produce, see bug 87 - * @todo We might want to use trim($tmp, "\n") here. - */ - $s .= trim($prefix . $trail, "\n") == '' ? '': $prefix . $trail; - - wfProfileOut( "$fname-category" ); - continue; - } - } - - # Self-link checking - if( $nt->getFragment() === '' ) { - if( in_array( $nt->getPrefixedText(), $selflink, true ) ) { - $s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail ); - continue; - } - } - - # Special and Media are pseudo-namespaces; no pages actually exist in them - if( $ns == NS_MEDIA ) { - # Give extensions a chance to select the file revision for us - $skip = $time = false; - wfRunHooks( 'BeforeParserMakeImageLinkObj', array( &$this, &$nt, &$skip, &$time ) ); - if ( $skip ) { - $link = $sk->makeLinkObj( $nt ); - } else { - $link = $sk->makeMediaLinkObj( $nt, $text, $time ); - } - # Cloak with NOPARSE to avoid replacement in replaceExternalLinks - $s .= $prefix . $this->armorLinks( $link ) . $trail; - $this->mOutput->addImage( $nt->getDBkey() ); - continue; - } elseif( $ns == NS_SPECIAL ) { - if( SpecialPage::exists( $nt->getDBkey() ) ) { - $s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix ); - } else { - $s .= $this->makeLinkHolder( $nt, $text, '', $trail, $prefix ); - } - continue; - } elseif( $ns == NS_IMAGE ) { - $img = wfFindFile( $nt ); - if( $img ) { - // Force a blue link if the file exists; may be a remote - // upload on the shared repository, and we want to see its - // auto-generated page. - $s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix ); - $this->mOutput->addLink( $nt ); - continue; - } - } - $s .= $this->makeLinkHolder( $nt, $text, '', $trail, $prefix ); - } - wfProfileOut( $fname ); - return $s; - } - - /** - * Make a link placeholder. The text returned can be later resolved to a real link with - * replaceLinkHolders(). This is done for two reasons: firstly to avoid further - * parsing of interwiki links, and secondly to allow all existence checks and - * article length checks (for stub links) to be bundled into a single query. - * - */ - function makeLinkHolder( &$nt, $text = '', $query = '', $trail = '', $prefix = '' ) { - wfProfileIn( __METHOD__ ); - if ( ! is_object($nt) ) { - # Fail gracefully - $retVal = "{$prefix}{$text}{$trail}"; - } else { - # Separate the link trail from the rest of the link - list( $inside, $trail ) = Linker::splitTrail( $trail ); - - if ( $nt->isExternal() ) { - $nr = array_push( $this->mInterwikiLinkHolders['texts'], $prefix.$text.$inside ); - $this->mInterwikiLinkHolders['titles'][] = $nt; - $retVal = '{$trail}"; - } else { - $nr = array_push( $this->mLinkHolders['namespaces'], $nt->getNamespace() ); - $this->mLinkHolders['dbkeys'][] = $nt->getDBkey(); - $this->mLinkHolders['queries'][] = $query; - $this->mLinkHolders['texts'][] = $prefix.$text.$inside; - $this->mLinkHolders['titles'][] = $nt; - - $retVal = '{$trail}"; - } - } - wfProfileOut( __METHOD__ ); - return $retVal; - } - - /** - * Render a forced-blue link inline; protect against double expansion of - * URLs if we're in a mode that prepends full URL prefixes to internal links. - * Since this little disaster has to split off the trail text to avoid - * breaking URLs in the following text without breaking trails on the - * wiki links, it's been made into a horrible function. - * - * @param Title $nt - * @param string $text - * @param string $query - * @param string $trail - * @param string $prefix - * @return string HTML-wikitext mix oh yuck - */ - function makeKnownLinkHolder( $nt, $text = '', $query = '', $trail = '', $prefix = '' ) { - list( $inside, $trail ) = Linker::splitTrail( $trail ); - $sk = $this->mOptions->getSkin(); - $link = $sk->makeKnownLinkObj( $nt, $text, $query, $inside, $prefix ); - return $this->armorLinks( $link ) . $trail; - } - - /** - * Insert a NOPARSE hacky thing into any inline links in a chunk that's - * going to go through further parsing steps before inline URL expansion. - * - * In particular this is important when using action=render, which causes - * full URLs to be included. - * - * Oh man I hate our multi-layer parser! - * - * @param string more-or-less HTML - * @return string less-or-more HTML with NOPARSE bits - */ - function armorLinks( $text ) { - return preg_replace( '/\b(' . wfUrlProtocols() . ')/', - "{$this->mUniqPrefix}NOPARSE$1", $text ); - } - - /** - * Return true if subpage links should be expanded on this page. - * @return bool - */ - function areSubpagesAllowed() { - # Some namespaces don't allow subpages - return MWNamespace::hasSubpages( $this->mTitle->getNamespace() ); - } - - /** - * Handle link to subpage if necessary - * @param string $target the source of the link - * @param string &$text the link text, modified as necessary - * @return string the full name of the link - * @private - */ - function maybeDoSubpageLink($target, &$text) { - # Valid link forms: - # Foobar -- normal - # :Foobar -- override special treatment of prefix (images, language links) - # /Foobar -- convert to CurrentPage/Foobar - # /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text - # ../ -- convert to CurrentPage, from CurrentPage/CurrentSubPage - # ../Foobar -- convert to CurrentPage/Foobar, from CurrentPage/CurrentSubPage - - $fname = 'Parser::maybeDoSubpageLink'; - wfProfileIn( $fname ); - $ret = $target; # default return value is no change - - # Some namespaces don't allow subpages, - # so only perform processing if subpages are allowed - if( $this->areSubpagesAllowed() ) { - $hash = strpos( $target, '#' ); - if( $hash !== false ) { - $suffix = substr( $target, $hash ); - $target = substr( $target, 0, $hash ); - } else { - $suffix = ''; - } - # bug 7425 - $target = trim( $target ); - # Look at the first character - if( $target != '' && $target{0} == '/' ) { - # / at end means we don't want the slash to be shown - $m = array(); - $trailingSlashes = preg_match_all( '%(/+)$%', $target, $m ); - if( $trailingSlashes ) { - $noslash = $target = substr( $target, 1, -strlen($m[0][0]) ); - } else { - $noslash = substr( $target, 1 ); - } - - $ret = $this->mTitle->getPrefixedText(). '/' . trim($noslash) . $suffix; - if( '' === $text ) { - $text = $target . $suffix; - } # this might be changed for ugliness reasons - } else { - # check for .. subpage backlinks - $dotdotcount = 0; - $nodotdot = $target; - while( strncmp( $nodotdot, "../", 3 ) == 0 ) { - ++$dotdotcount; - $nodotdot = substr( $nodotdot, 3 ); - } - if($dotdotcount > 0) { - $exploded = explode( '/', $this->mTitle->GetPrefixedText() ); - if( count( $exploded ) > $dotdotcount ) { # not allowed to go below top level page - $ret = implode( '/', array_slice( $exploded, 0, -$dotdotcount ) ); - # / at the end means don't show full path - if( substr( $nodotdot, -1, 1 ) == '/' ) { - $nodotdot = substr( $nodotdot, 0, -1 ); - if( '' === $text ) { - $text = $nodotdot . $suffix; - } - } - $nodotdot = trim( $nodotdot ); - if( $nodotdot != '' ) { - $ret .= '/' . $nodotdot; - } - $ret .= $suffix; - } - } - } - } - - wfProfileOut( $fname ); - return $ret; - } - - /**#@+ - * Used by doBlockLevels() - * @private - */ - /* private */ function closeParagraph() { - $result = ''; - if ( '' != $this->mLastSection ) { - $result = 'mLastSection . ">\n"; - } - $this->mInPre = false; - $this->mLastSection = ''; - return $result; - } - # getCommon() returns the length of the longest common substring - # of both arguments, starting at the beginning of both. - # - /* private */ function getCommon( $st1, $st2 ) { - $fl = strlen( $st1 ); - $shorter = strlen( $st2 ); - if ( $fl < $shorter ) { $shorter = $fl; } - - for ( $i = 0; $i < $shorter; ++$i ) { - if ( $st1{$i} != $st2{$i} ) { break; } - } - return $i; - } - # These next three functions open, continue, and close the list - # element appropriate to the prefix character passed into them. - # - /* private */ function openList( $char ) { - $result = $this->closeParagraph(); - - if ( '*' == $char ) { $result .= '
    • '; } - else if ( '#' == $char ) { $result .= '
      1. '; } - else if ( ':' == $char ) { $result .= '
        '; } - else if ( ';' == $char ) { - $result .= '
        '; - $this->mDTopen = true; - } - else { $result = ''; } - - return $result; - } - - /* private */ function nextItem( $char ) { - if ( '*' == $char || '#' == $char ) { return '
      2. '; } - else if ( ':' == $char || ';' == $char ) { - $close = ''; - if ( $this->mDTopen ) { $close = ''; } - if ( ';' == $char ) { - $this->mDTopen = true; - return $close . '
        '; - } else { - $this->mDTopen = false; - return $close . '
        '; - } - } - return ''; - } - - /* private */ function closeList( $char ) { - if ( '*' == $char ) { $text = '
    '; } - else if ( '#' == $char ) { $text = '
    • '; } - else if ( ':' == $char ) { - if ( $this->mDTopen ) { - $this->mDTopen = false; - $text = ''; - } else { - $text = ''; - } - } - else { return ''; } - return $text."\n"; - } - /**#@-*/ - - /** - * Make lists from lines starting with ':', '*', '#', etc. - * - * @private - * @return string the lists rendered as HTML - */ - function doBlockLevels( $text, $linestart ) { - $fname = 'Parser::doBlockLevels'; - wfProfileIn( $fname ); - - # Parsing through the text line by line. The main thing - # happening here is handling of block-level elements p, pre, - # and making lists from lines starting with * # : etc. - # - $textLines = explode( "\n", $text ); - - $lastPrefix = $output = ''; - $this->mDTopen = $inBlockElem = false; - $prefixLength = 0; - $paragraphStack = false; - - if ( !$linestart ) { - $output .= array_shift( $textLines ); - } - foreach ( $textLines as $oLine ) { - $lastPrefixLength = strlen( $lastPrefix ); - $preCloseMatch = preg_match('/<\\/pre/i', $oLine ); - $preOpenMatch = preg_match('/
    mInPre ) {
-				# Multiple prefixes may abut each other for nested lists.
-				$prefixLength = strspn( $oLine, '*#:;' );
-				$pref = substr( $oLine, 0, $prefixLength );
-
-				# eh?
-				$pref2 = str_replace( ';', ':', $pref );
-				$t = substr( $oLine, $prefixLength );
-				$this->mInPre = !empty($preOpenMatch);
-			} else {
-				# Don't interpret any other prefixes in preformatted text
-				$prefixLength = 0;
-				$pref = $pref2 = '';
-				$t = $oLine;
-			}
-
-			# List generation
-			if( $prefixLength && 0 == strcmp( $lastPrefix, $pref2 ) ) {
-				# Same as the last item, so no need to deal with nesting or opening stuff
-				$output .= $this->nextItem( substr( $pref, -1 ) );
-				$paragraphStack = false;
-
-				if ( substr( $pref, -1 ) == ';') {
-					# The one nasty exception: definition lists work like this:
-					# ; title : definition text
-					# So we check for : in the remainder text to split up the
-					# title and definition, without b0rking links.
-					$term = $t2 = '';
-					if ($this->findColonNoLinks($t, $term, $t2) !== false) {
-						$t = $t2;
-						$output .= $term . $this->nextItem( ':' );
-					}
-				}
-			} elseif( $prefixLength || $lastPrefixLength ) {
-				# Either open or close a level...
-				$commonPrefixLength = $this->getCommon( $pref, $lastPrefix );
-				$paragraphStack = false;
-
-				while( $commonPrefixLength < $lastPrefixLength ) {
-					$output .= $this->closeList( $lastPrefix{$lastPrefixLength-1} );
-					--$lastPrefixLength;
-				}
-				if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) {
-					$output .= $this->nextItem( $pref{$commonPrefixLength-1} );
-				}
-				while ( $prefixLength > $commonPrefixLength ) {
-					$char = substr( $pref, $commonPrefixLength, 1 );
-					$output .= $this->openList( $char );
-
-					if ( ';' == $char ) {
-						# FIXME: This is dupe of code above
-						if ($this->findColonNoLinks($t, $term, $t2) !== false) {
-							$t = $t2;
-							$output .= $term . $this->nextItem( ':' );
-						}
-					}
-					++$commonPrefixLength;
-				}
-				$lastPrefix = $pref2;
-			}
-			if( 0 == $prefixLength ) {
-				wfProfileIn( "$fname-paragraph" );
-				# No prefix (not in list)--go to paragraph mode
-				// XXX: use a stack for nestable elements like span, table and div
-				$openmatch = preg_match('/(?:mUniqPrefix.'-pre|<\\/li|<\\/ul|<\\/ol|<\\/?center)/iS', $t );
-				if ( $openmatch or $closematch ) {
-					$paragraphStack = false;
-					# TODO bug 5718: paragraph closed
-					$output .= $this->closeParagraph();
-					if ( $preOpenMatch and !$preCloseMatch ) {
-						$this->mInPre = true;
-					}
-					if ( $closematch ) {
-						$inBlockElem = false;
-					} else {
-						$inBlockElem = true;
-					}
-				} else if ( !$inBlockElem && !$this->mInPre ) {
-					if ( ' ' == $t{0} and ( $this->mLastSection == 'pre' or trim($t) != '' ) ) {
-						// pre
-						if ($this->mLastSection != 'pre') {
-							$paragraphStack = false;
-							$output .= $this->closeParagraph().'
    ';
-							$this->mLastSection = 'pre';
-						}
-						$t = substr( $t, 1 );
-					} else {
-						// paragraph
-						if ( '' == trim($t) ) {
-							if ( $paragraphStack ) {
-								$output .= $paragraphStack.'
    ';
-								$paragraphStack = false;
-								$this->mLastSection = 'p';
-							} else {
-								if ($this->mLastSection != 'p' ) {
-									$output .= $this->closeParagraph();
-									$this->mLastSection = '';
-									$paragraphStack = '
    ';
-								} else {
-									$paragraphStack = '
    ';
-								}
-							}
-						} else {
-							if ( $paragraphStack ) {
-								$output .= $paragraphStack;
-								$paragraphStack = false;
-								$this->mLastSection = 'p';
-							} else if ($this->mLastSection != 'p') {
-								$output .= $this->closeParagraph().'
    ';
-								$this->mLastSection = 'p';
-							}
-						}
-					}
-				}
-				wfProfileOut( "$fname-paragraph" );
-			}
-			// somewhere above we forget to get out of pre block (bug 785)
-			if($preCloseMatch && $this->mInPre) {
-				$this->mInPre = false;
-			}
-			if ($paragraphStack === false) {
-				$output .= $t."\n";
-			}
-		}
-		while ( $prefixLength ) {
-			$output .= $this->closeList( $pref2{$prefixLength-1} );
-			--$prefixLength;
-		}
-		if ( '' != $this->mLastSection ) {
-			$output .= 'mLastSection . '>';
-			$this->mLastSection = '';
-		}
-
-		wfProfileOut( $fname );
-		return $output;
-	}
-
-	/**
-	 * Split up a string on ':', ignoring any occurences inside tags
-	 * to prevent illegal overlapping.
-	 * @param string $str the string to split
-	 * @param string &$before set to everything before the ':'
-	 * @param string &$after set to everything after the ':'
-	 * return string the position of the ':', or false if none found
-	 */
-	function findColonNoLinks($str, &$before, &$after) {
-		$fname = 'Parser::findColonNoLinks';
-		wfProfileIn( $fname );
-
-		$pos = strpos( $str, ':' );
-		if( $pos === false ) {
-			// Nothing to find!
-			wfProfileOut( $fname );
-			return false;
-		}
-
-		$lt = strpos( $str, '<' );
-		if( $lt === false || $lt > $pos ) {
-			// Easy; no tag nesting to worry about
-			$before = substr( $str, 0, $pos );
-			$after = substr( $str, $pos+1 );
-			wfProfileOut( $fname );
-			return $pos;
-		}
-
-		// Ugly state machine to walk through avoiding tags.
-		$state = self::COLON_STATE_TEXT;
-		$stack = 0;
-		$len = strlen( $str );
-		for( $i = 0; $i < $len; $i++ ) {
-			$c = $str{$i};
-
-			switch( $state ) {
-			// (Using the number is a performance hack for common cases)
-			case 0: // self::COLON_STATE_TEXT:
-				switch( $c ) {
-				case "<":
-					// Could be either a  tag or an  tag
-					$state = self::COLON_STATE_TAGSTART;
-					break;
-				case ":":
-					if( $stack == 0 ) {
-						// We found it!
-						$before = substr( $str, 0, $i );
-						$after = substr( $str, $i + 1 );
-						wfProfileOut( $fname );
-						return $i;
-					}
-					// Embedded in a tag; don't break it.
-					break;
-				default:
-					// Skip ahead looking for something interesting
-					$colon = strpos( $str, ':', $i );
-					if( $colon === false ) {
-						// Nothing else interesting
-						wfProfileOut( $fname );
-						return false;
-					}
-					$lt = strpos( $str, '<', $i );
-					if( $stack === 0 ) {
-						if( $lt === false || $colon < $lt ) {
-							// We found it!
-							$before = substr( $str, 0, $colon );
-							$after = substr( $str, $colon + 1 );
-							wfProfileOut( $fname );
-							return $i;
-						}
-					}
-					if( $lt === false ) {
-						// Nothing else interesting to find; abort!
-						// We're nested, but there's no close tags left. Abort!
-						break 2;
-					}
-					// Skip ahead to next tag start
-					$i = $lt;
-					$state = self::COLON_STATE_TAGSTART;
-				}
-				break;
-			case 1: // self::COLON_STATE_TAG:
-				// In a 
-				switch( $c ) {
-				case ">":
-					$stack++;
-					$state = self::COLON_STATE_TEXT;
-					break;
-				case "/":
-					// Slash may be followed by >?
-					$state = self::COLON_STATE_TAGSLASH;
-					break;
-				default:
-					// ignore
-				}
-				break;
-			case 2: // self::COLON_STATE_TAGSTART:
-				switch( $c ) {
-				case "/":
-					$state = self::COLON_STATE_CLOSETAG;
-					break;
-				case "!":
-					$state = self::COLON_STATE_COMMENT;
-					break;
-				case ">":
-					// Illegal early close? This shouldn't happen D:
-					$state = self::COLON_STATE_TEXT;
-					break;
-				default:
-					$state = self::COLON_STATE_TAG;
-				}
-				break;
-			case 3: // self::COLON_STATE_CLOSETAG:
-				// In a 
-				if( $c == ">" ) {
-					$stack--;
-					if( $stack < 0 ) {
-						wfDebug( "Invalid input in $fname; too many close tags\n" );
-						wfProfileOut( $fname );
-						return false;
-					}
-					$state = self::COLON_STATE_TEXT;
-				}
-				break;
-			case self::COLON_STATE_TAGSLASH:
-				if( $c == ">" ) {
-					// Yes, a self-closed tag 
-					$state = self::COLON_STATE_TEXT;
-				} else {
-					// Probably we're jumping the gun, and this is an attribute
-					$state = self::COLON_STATE_TAG;
-				}
-				break;
-			case 5: // self::COLON_STATE_COMMENT:
-				if( $c == "-" ) {
-					$state = self::COLON_STATE_COMMENTDASH;
-				}
-				break;
-			case self::COLON_STATE_COMMENTDASH:
-				if( $c == "-" ) {
-					$state = self::COLON_STATE_COMMENTDASHDASH;
-				} else {
-					$state = self::COLON_STATE_COMMENT;
-				}
-				break;
-			case self::COLON_STATE_COMMENTDASHDASH:
-				if( $c == ">" ) {
-					$state = self::COLON_STATE_TEXT;
-				} else {
-					$state = self::COLON_STATE_COMMENT;
-				}
-				break;
-			default:
-				throw new MWException( "State machine error in $fname" );
-			}
-		}
-		if( $stack > 0 ) {
-			wfDebug( "Invalid input in $fname; not enough close tags (stack $stack, state $state)\n" );
-			return false;
-		}
-		wfProfileOut( $fname );
-		return false;
-	}
-
-	/**
-	 * Return value of a magic variable (like PAGENAME)
-	 *
-	 * @private
-	 */
-	function getVariableValue( $index ) {
-		global $wgContLang, $wgSitename, $wgServer, $wgServerName, $wgScriptPath;
-
-		/**
-		 * Some of these require message or data lookups and can be
-		 * expensive to check many times.
-		 */
-		if ( wfRunHooks( 'ParserGetVariableValueVarCache', array( &$this, &$this->mVarCache ) ) ) {
-			if ( isset( $this->mVarCache[$index] ) ) {
-				return $this->mVarCache[$index];
-			}
-		}
-
-		$ts = wfTimestamp( TS_UNIX, $this->mOptions->getTimestamp() );
-		wfRunHooks( 'ParserGetVariableValueTs', array( &$this, &$ts ) );
-
-		# Use the time zone
-		global $wgLocaltimezone;
-		if ( isset( $wgLocaltimezone ) ) {
-			$oldtz = getenv( 'TZ' );
-			putenv( 'TZ='.$wgLocaltimezone );
-		}
-
-		wfSuppressWarnings(); // E_STRICT system time bitching
-		$localTimestamp = date( 'YmdHis', $ts );
-		$localMonth = date( 'm', $ts );
-		$localMonthName = date( 'n', $ts );
-		$localDay = date( 'j', $ts );
-		$localDay2 = date( 'd', $ts );
-		$localDayOfWeek = date( 'w', $ts );
-		$localWeek = date( 'W', $ts );
-		$localYear = date( 'Y', $ts );
-		$localHour = date( 'H', $ts );
-		if ( isset( $wgLocaltimezone ) ) {
-			putenv( 'TZ='.$oldtz );
-		}
-		wfRestoreWarnings();
-
-		switch ( $index ) {
-			case 'currentmonth':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( gmdate( 'm', $ts ) );
-			case 'currentmonthname':
-				return $this->mVarCache[$index] = $wgContLang->getMonthName( gmdate( 'n', $ts ) );
-			case 'currentmonthnamegen':
-				return $this->mVarCache[$index] = $wgContLang->getMonthNameGen( gmdate( 'n', $ts ) );
-			case 'currentmonthabbrev':
-				return $this->mVarCache[$index] = $wgContLang->getMonthAbbreviation( gmdate( 'n', $ts ) );
-			case 'currentday':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( gmdate( 'j', $ts ) );
-			case 'currentday2':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( gmdate( 'd', $ts ) );
-			case 'localmonth':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( $localMonth );
-			case 'localmonthname':
-				return $this->mVarCache[$index] = $wgContLang->getMonthName( $localMonthName );
-			case 'localmonthnamegen':
-				return $this->mVarCache[$index] = $wgContLang->getMonthNameGen( $localMonthName );
-			case 'localmonthabbrev':
-				return $this->mVarCache[$index] = $wgContLang->getMonthAbbreviation( $localMonthName );
-			case 'localday':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( $localDay );
-			case 'localday2':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( $localDay2 );
-			case 'pagename':
-				return wfEscapeWikiText( $this->mTitle->getText() );
-			case 'pagenamee':
-				return $this->mTitle->getPartialURL();
-			case 'fullpagename':
-				return wfEscapeWikiText( $this->mTitle->getPrefixedText() );
-			case 'fullpagenamee':
-				return $this->mTitle->getPrefixedURL();
-			case 'subpagename':
-				return wfEscapeWikiText( $this->mTitle->getSubpageText() );
-			case 'subpagenamee':
-				return $this->mTitle->getSubpageUrlForm();
-			case 'basepagename':
-				return wfEscapeWikiText( $this->mTitle->getBaseText() );
-			case 'basepagenamee':
-				return wfUrlEncode( str_replace( ' ', '_', $this->mTitle->getBaseText() ) );
-			case 'talkpagename':
-				if( $this->mTitle->canTalk() ) {
-					$talkPage = $this->mTitle->getTalkPage();
-					return wfEscapeWikiText( $talkPage->getPrefixedText() );
-				} else {
-					return '';
-				}
-			case 'talkpagenamee':
-				if( $this->mTitle->canTalk() ) {
-					$talkPage = $this->mTitle->getTalkPage();
-					return $talkPage->getPrefixedUrl();
-				} else {
-					return '';
-				}
-			case 'subjectpagename':
-				$subjPage = $this->mTitle->getSubjectPage();
-				return wfEscapeWikiText( $subjPage->getPrefixedText() );
-			case 'subjectpagenamee':
-				$subjPage = $this->mTitle->getSubjectPage();
-				return $subjPage->getPrefixedUrl();
-			case 'revisionid':
-				// Let the edit saving system know we should parse the page
-				// *after* a revision ID has been assigned.
-				$this->mOutput->setFlag( 'vary-revision' );
-				wfDebug( __METHOD__ . ": {{REVISIONID}} used, setting vary-revision...\n" );
-				return $this->mRevisionId;
-			case 'revisionday':
-				// Let the edit saving system know we should parse the page
-				// *after* a revision ID has been assigned. This is for null edits.
-				$this->mOutput->setFlag( 'vary-revision' );
-				wfDebug( __METHOD__ . ": {{REVISIONDAY}} used, setting vary-revision...\n" );
-				return intval( substr( $this->getRevisionTimestamp(), 6, 2 ) );
-			case 'revisionday2':
-				// Let the edit saving system know we should parse the page
-				// *after* a revision ID has been assigned. This is for null edits.
-				$this->mOutput->setFlag( 'vary-revision' );
-				wfDebug( __METHOD__ . ": {{REVISIONDAY2}} used, setting vary-revision...\n" );
-				return substr( $this->getRevisionTimestamp(), 6, 2 );
-			case 'revisionmonth':
-				// Let the edit saving system know we should parse the page
-				// *after* a revision ID has been assigned. This is for null edits.
-				$this->mOutput->setFlag( 'vary-revision' );
-				wfDebug( __METHOD__ . ": {{REVISIONMONTH}} used, setting vary-revision...\n" );
-				return intval( substr( $this->getRevisionTimestamp(), 4, 2 ) );
-			case 'revisionyear':
-				// Let the edit saving system know we should parse the page
-				// *after* a revision ID has been assigned. This is for null edits.
-				$this->mOutput->setFlag( 'vary-revision' );
-				wfDebug( __METHOD__ . ": {{REVISIONYEAR}} used, setting vary-revision...\n" );
-				return substr( $this->getRevisionTimestamp(), 0, 4 );
-			case 'revisiontimestamp':
-				// Let the edit saving system know we should parse the page
-				// *after* a revision ID has been assigned. This is for null edits.
-				$this->mOutput->setFlag( 'vary-revision' );
-				wfDebug( __METHOD__ . ": {{REVISIONTIMESTAMP}} used, setting vary-revision...\n" );
-				return $this->getRevisionTimestamp();
-			case 'namespace':
-				return str_replace('_',' ',$wgContLang->getNsText( $this->mTitle->getNamespace() ) );
-			case 'namespacee':
-				return wfUrlencode( $wgContLang->getNsText( $this->mTitle->getNamespace() ) );
-			case 'talkspace':
-				return $this->mTitle->canTalk() ? str_replace('_',' ',$this->mTitle->getTalkNsText()) : '';
-			case 'talkspacee':
-				return $this->mTitle->canTalk() ? wfUrlencode( $this->mTitle->getTalkNsText() ) : '';
-			case 'subjectspace':
-				return $this->mTitle->getSubjectNsText();
-			case 'subjectspacee':
-				return( wfUrlencode( $this->mTitle->getSubjectNsText() ) );
-			case 'currentdayname':
-				return $this->mVarCache[$index] = $wgContLang->getWeekdayName( gmdate( 'w', $ts ) + 1 );
-			case 'currentyear':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( gmdate( 'Y', $ts ), true );
-			case 'currenttime':
-				return $this->mVarCache[$index] = $wgContLang->time( wfTimestamp( TS_MW, $ts ), false, false );
-			case 'currenthour':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( gmdate( 'H', $ts ), true );
-			case 'currentweek':
-				// @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to
-				// int to remove the padding
-				return $this->mVarCache[$index] = $wgContLang->formatNum( (int)gmdate( 'W', $ts ) );
-			case 'currentdow':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( gmdate( 'w', $ts ) );
-			case 'localdayname':
-				return $this->mVarCache[$index] = $wgContLang->getWeekdayName( $localDayOfWeek + 1 );
-			case 'localyear':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( $localYear, true );
-			case 'localtime':
-				return $this->mVarCache[$index] = $wgContLang->time( $localTimestamp, false, false );
-			case 'localhour':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( $localHour, true );
-			case 'localweek':
-				// @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to
-				// int to remove the padding
-				return $this->mVarCache[$index] = $wgContLang->formatNum( (int)$localWeek );
-			case 'localdow':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( $localDayOfWeek );
-			case 'numberofarticles':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::articles() );
-			case 'numberoffiles':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::images() );
-			case 'numberofusers':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::users() );
-			case 'numberofpages':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::pages() );
-			case 'numberofadmins':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::admins() );
-			case 'numberofedits':
-				return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::edits() );
-			case 'currenttimestamp':
-				return $this->mVarCache[$index] = wfTimestamp( TS_MW, $ts );
-			case 'localtimestamp':
-				return $this->mVarCache[$index] = $localTimestamp;
-			case 'currentversion':
-				return $this->mVarCache[$index] = SpecialVersion::getVersion();
-			case 'sitename':
-				return $wgSitename;
-			case 'server':
-				return $wgServer;
-			case 'servername':
-				return $wgServerName;
-			case 'scriptpath':
-				return $wgScriptPath;
-			case 'directionmark':
-				return $wgContLang->getDirMark();
-			case 'contentlanguage':
-				global $wgContLanguageCode;
-				return $wgContLanguageCode;
-			default:
-				$ret = null;
-				if ( wfRunHooks( 'ParserGetVariableValueSwitch', array( &$this, &$this->mVarCache, &$index, &$ret ) ) )
-					return $ret;
-				else
-					return null;
-		}
-	}
-
-	/**
-	 * initialise the magic variables (like CURRENTMONTHNAME)
-	 *
-	 * @private
-	 */
-	function initialiseVariables() {
-		$fname = 'Parser::initialiseVariables';
-		wfProfileIn( $fname );
-		$variableIDs = MagicWord::getVariableIDs();
-
-		$this->mVariables = new MagicWordArray( $variableIDs );
-		wfProfileOut( $fname );
-	}
-
-	/**
-	 * Preprocess some wikitext and return the document tree.
-	 * This is the ghost of replace_variables().
-	 *
-	 * @param string $text The text to parse
-	 * @param integer flags Bitwise combination of:
-	 *          self::PTD_FOR_INCLUSION    Handle / as if the text is being
-	 *                                     included. Default is to assume a direct page view.
-	 *
-	 * The generated DOM tree must depend only on the input text and the flags.
-	 * The DOM tree must be the same in OT_HTML and OT_WIKI mode, to avoid a regression of bug 4899.
-	 *
-	 * Any flag added to the $flags parameter here, or any other parameter liable to cause a
-	 * change in the DOM tree for a given text, must be passed through the section identifier
-	 * in the section edit link and thus back to extractSections().
-	 *
-	 * The output of this function is currently only cached in process memory, but a persistent
-	 * cache may be implemented at a later date which takes further advantage of these strict
-	 * dependency requirements.
-	 *
-	 * @private
-	 */
-	function preprocessToDom ( $text, $flags = 0 ) {
-		$dom = $this->getPreprocessor()->preprocessToObj( $text, $flags );
-		return $dom;
-	}
-
-	/*
-	 * Return a three-element array: leading whitespace, string contents, trailing whitespace
-	 */
-	public static function splitWhitespace( $s ) {
-		$ltrimmed = ltrim( $s );
-		$w1 = substr( $s, 0, strlen( $s ) - strlen( $ltrimmed ) );
-		$trimmed = rtrim( $ltrimmed );
-		$diff = strlen( $ltrimmed ) - strlen( $trimmed );
-		if ( $diff > 0 ) {
-			$w2 = substr( $ltrimmed, -$diff );
-		} else {
-			$w2 = '';
-		}
-		return array( $w1, $trimmed, $w2 );
-	}
-
-	/**
-	 * Replace magic variables, templates, and template arguments
-	 * with the appropriate text. Templates are substituted recursively,
-	 * taking care to avoid infinite loops.
-	 *
-	 * Note that the substitution depends on value of $mOutputType:
-	 *  self::OT_WIKI: only {{subst:}} templates
-	 *  self::OT_PREPROCESS: templates but not extension tags
-	 *  self::OT_HTML: all templates and extension tags
-	 *
-	 * @param string $tex The text to transform
-	 * @param PPFrame $frame Object describing the arguments passed to the template
-	 * @param bool $argsOnly Only do argument (triple-brace) expansion, not double-brace expansion
-	 * @private
-	 */
-	function replaceVariables( $text, $frame = false, $argsOnly = false ) {
-		# Prevent too big inclusions
-		if( strlen( $text ) > $this->mOptions->getMaxIncludeSize() ) {
-			return $text;
-		}
-
-		$fname = __METHOD__;
-		wfProfileIn( $fname );
-
-		if ( $frame === false ) {
-			$frame = $this->getPreprocessor()->newFrame();
-		} elseif ( !( $frame instanceof PPFrame ) ) {
-			throw new MWException( __METHOD__ . ' called using the old argument format' );
-		}
-
-		$dom = $this->preprocessToDom( $text );
-		$flags = $argsOnly ? PPFrame::NO_TEMPLATES : 0;
-		$text = $frame->expand( $dom, $flags );
-
-		wfProfileOut( $fname );
-		return $text;
-	}
-
-	/// Clean up argument array - refactored in 1.9 so parserfunctions can use it, too.
-	static function createAssocArgs( $args ) {
-		$assocArgs = array();
-		$index = 1;
-		foreach( $args as $arg ) {
-			$eqpos = strpos( $arg, '=' );
-			if ( $eqpos === false ) {
-				$assocArgs[$index++] = $arg;
-			} else {
-				$name = trim( substr( $arg, 0, $eqpos ) );
-				$value = trim( substr( $arg, $eqpos+1 ) );
-				if ( $value === false ) {
-					$value = '';
-				}
-				if ( $name !== false ) {
-					$assocArgs[$name] = $value;
-				}
-			}
-		}
-
-		return $assocArgs;
-	}
-
-	/**
-	 * Warn the user when a parser limitation is reached
-	 * Will warn at most once the user per limitation type
-	 *
-	 * @param string $limitationType, should be one of:
-	 *   'expensive-parserfunction' (corresponding messages: 'expensive-parserfunction-warning', 'expensive-parserfunction-category')
-	 *   'post-expand-template-argument' (corresponding messages: 'post-expand-template-argument-warning', 'post-expand-template-argument-category')
-	 *   'post-expand-template-inclusion' (corresponding messages: 'post-expand-template-inclusion-warning', 'post-expand-template-inclusion-category')
-	 * @params int $current, $max When an explicit limit has been
-	 *	 exceeded, provide the values (optional)
-	 */
-	function limitationWarn( $limitationType, $current=null, $max=null) {
-		$msgName = $limitationType . '-warning';
-		//does no harm if $current and $max are present but are unnecessary for the message
-		$warning = wfMsg( $msgName, $current, $max); 
-		$this->mOutput->addWarning( $warning );
-		$cat = Title::makeTitleSafe( NS_CATEGORY, wfMsgForContent( $limitationType . '-category' ) );
-		if ( $cat ) {
-			$this->mOutput->addCategory( $cat->getDBkey(), $this->getDefaultSort() );
-		}
-	}
-
-	/**
-	 * Return the text of a template, after recursively
-	 * replacing any variables or templates within the template.
-	 *
-	 * @param array $piece The parts of the template
-	 *  $piece['title']: the title, i.e. the part before the |
-	 *  $piece['parts']: the parameter array
-	 *  $piece['lineStart']: whether the brace was at the start of a line
-	 * @param PPFrame The current frame, contains template arguments
-	 * @return string the text of the template
-	 * @private
-	 */
-	function braceSubstitution( $piece, $frame ) {
-		global $wgContLang, $wgLang, $wgAllowDisplayTitle, $wgNonincludableNamespaces;
-		$fname = __METHOD__;
-		wfProfileIn( $fname );
-		wfProfileIn( __METHOD__.'-setup' );
-
-		# Flags
-		$found = false;             # $text has been filled
-		$nowiki = false;            # wiki markup in $text should be escaped
-		$isHTML = false;            # $text is HTML, armour it against wikitext transformation
-		$forceRawInterwiki = false; # Force interwiki transclusion to be done in raw mode not rendered
-		$isChildObj = false;        # $text is a DOM node needing expansion in a child frame
-		$isLocalObj = false;        # $text is a DOM node needing expansion in the current frame
-
-		# Title object, where $text came from
-		$title = NULL;
-
-		# $part1 is the bit before the first |, and must contain only title characters.
-		# Various prefixes will be stripped from it later.
-		$titleWithSpaces = $frame->expand( $piece['title'] );
-		$part1 = trim( $titleWithSpaces );
-		$titleText = false;
-
-		# Original title text preserved for various purposes
-		$originalTitle = $part1;
-
-		# $args is a list of argument nodes, starting from index 0, not including $part1
-		$args = (null == $piece['parts']) ? array() : $piece['parts'];
-		wfProfileOut( __METHOD__.'-setup' );
-
-		# SUBST
-		wfProfileIn( __METHOD__.'-modifiers' );
-		if ( !$found ) {
-			$mwSubst = MagicWord::get( 'subst' );
-			if ( $mwSubst->matchStartAndRemove( $part1 ) xor $this->ot['wiki'] ) {
-				# One of two possibilities is true:
-				# 1) Found SUBST but not in the PST phase
-				# 2) Didn't find SUBST and in the PST phase
-				# In either case, return without further processing
-				$text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
-				$isLocalObj = true;
-				$found = true;
-			}
-		}
-
-		# Variables
-		if ( !$found && $args->getLength() == 0 ) {
-			$id = $this->mVariables->matchStartToEnd( $part1 );
-			if ( $id !== false ) {
-				$text = $this->getVariableValue( $id );
-				if (MagicWord::getCacheTTL($id)>-1)
-					$this->mOutput->mContainsOldMagic = true;
-				$found = true;
-			}
-		}
-
-		# MSG, MSGNW and RAW
-		if ( !$found ) {
-			# Check for MSGNW:
-			$mwMsgnw = MagicWord::get( 'msgnw' );
-			if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
-				$nowiki = true;
-			} else {
-				# Remove obsolete MSG:
-				$mwMsg = MagicWord::get( 'msg' );
-				$mwMsg->matchStartAndRemove( $part1 );
-			}
-
-			# Check for RAW:
-			$mwRaw = MagicWord::get( 'raw' );
-			if ( $mwRaw->matchStartAndRemove( $part1 ) ) {
-				$forceRawInterwiki = true;
-			}
-		}
-		wfProfileOut( __METHOD__.'-modifiers' );
-
-		# Parser functions
-		if ( !$found ) {
-			wfProfileIn( __METHOD__ . '-pfunc' );
-
-			$colonPos = strpos( $part1, ':' );
-			if ( $colonPos !== false ) {
-				# Case sensitive functions
-				$function = substr( $part1, 0, $colonPos );
-				if ( isset( $this->mFunctionSynonyms[1][$function] ) ) {
-					$function = $this->mFunctionSynonyms[1][$function];
-				} else {
-					# Case insensitive functions
-					$function = strtolower( $function );
-					if ( isset( $this->mFunctionSynonyms[0][$function] ) ) {
-						$function = $this->mFunctionSynonyms[0][$function];
-					} else {
-						$function = false;
-					}
-				}
-				if ( $function ) {
-					list( $callback, $flags ) = $this->mFunctionHooks[$function];
-					$initialArgs = array( &$this );
-					$funcArgs = array( trim( substr( $part1, $colonPos + 1 ) ) );
-					if ( $flags & SFH_OBJECT_ARGS ) {
-						# Add a frame parameter, and pass the arguments as an array
-						$allArgs = $initialArgs;
-						$allArgs[] = $frame;
-						for ( $i = 0; $i < $args->getLength(); $i++ ) {
-							$funcArgs[] = $args->item( $i );
-						}
-						$allArgs[] = $funcArgs;
-					} else {
-						# Convert arguments to plain text
-						for ( $i = 0; $i < $args->getLength(); $i++ ) {
-							$funcArgs[] = trim( $frame->expand( $args->item( $i ) ) );
-						}
-						$allArgs = array_merge( $initialArgs, $funcArgs );
-					}
-
-					# Workaround for PHP bug 35229 and similar
-					if ( !is_callable( $callback ) ) {
-						throw new MWException( "Tag hook for $name is not callable\n" );
-					}
-					$result = call_user_func_array( $callback, $allArgs );
-					$found = true;
-					$noparse = true;
-					$preprocessFlags = 0;
-					
-					if ( is_array( $result ) ) {
-						if ( isset( $result[0] ) ) {
-							$text = $result[0];
-							unset( $result[0] );
-						}
-
-						// Extract flags into the local scope
-						// This allows callers to set flags such as nowiki, found, etc.
-						extract( $result );
-					} else {
-						$text = $result;
-					}
-					if ( !$noparse ) {
-						$text = $this->preprocessToDom( $text, $preprocessFlags );
-						$isChildObj = true;
-					}
-				}
-			}
-			wfProfileOut( __METHOD__ . '-pfunc' );
-		}
-
-		# Finish mangling title and then check for loops.
-		# Set $title to a Title object and $titleText to the PDBK
-		if ( !$found ) {
-			$ns = NS_TEMPLATE;
-			# Split the title into page and subpage
-			$subpage = '';
-			$part1 = $this->maybeDoSubpageLink( $part1, $subpage );
-			if ($subpage !== '') {
-				$ns = $this->mTitle->getNamespace();
-			}
-			$title = Title::newFromText( $part1, $ns );
-			if ( $title ) {
-				$titleText = $title->getPrefixedText();
-				# Check for language variants if the template is not found
-				if($wgContLang->hasVariants() && $title->getArticleID() == 0){
-					$wgContLang->findVariantLink($part1, $title);
-				}
-				# Do infinite loop check
-				if ( !$frame->loopCheck( $title ) ) {
-					$found = true;
-					$text = "Template loop detected: [[$titleText]]";
-					wfDebug( __METHOD__.": template loop broken at '$titleText'\n" );
-				}
-				# Do recursion depth check
-				$limit = $this->mOptions->getMaxTemplateDepth();
-				if ( $frame->depth >= $limit ) {
-					$found = true;
-					$text = "Template recursion depth limit exceeded ($limit)";
-				}
-			}
-		}
-
-		# Load from database
-		if ( !$found && $title ) {
-			wfProfileIn( __METHOD__ . '-loadtpl' );
-			if ( !$title->isExternal() ) {
-				if ( $title->getNamespace() == NS_SPECIAL && $this->mOptions->getAllowSpecialInclusion() && $this->ot['html'] ) {
-					$text = SpecialPage::capturePath( $title );
-					if ( is_string( $text ) ) {
-						$found = true;
-						$isHTML = true;
-						$this->disableCache();
-					}
-				} else if ( $wgNonincludableNamespaces && in_array( $title->getNamespace(), $wgNonincludableNamespaces ) ) {
-					$found = false; //access denied
-					wfDebug( "$fname: template inclusion denied for " . $title->getPrefixedDBkey() );
-				} else {
-					list( $text, $title ) = $this->getTemplateDom( $title );
-					if ( $text !== false ) {
-						$found = true;
-						$isChildObj = true;
-					}
-				}
-
-				# If the title is valid but undisplayable, make a link to it
-				if ( !$found && ( $this->ot['html'] || $this->ot['pre'] ) ) {
-					$text = "[[:$titleText]]";
-					$found = true;
-				}
-			} elseif ( $title->isTrans() ) {
-				// Interwiki transclusion
-				if ( $this->ot['html'] && !$forceRawInterwiki ) {
-					$text = $this->interwikiTransclude( $title, 'render' );
-					$isHTML = true;
-				} else {
-					$text = $this->interwikiTransclude( $title, 'raw' );
-					// Preprocess it like a template
-					$text = $this->preprocessToDom( $text, self::PTD_FOR_INCLUSION );
-					$isChildObj = true;
-				}
-				$found = true;
-			}
-			wfProfileOut( __METHOD__ . '-loadtpl' );
-		}
-
-		# If we haven't found text to substitute by now, we're done
-		# Recover the source wikitext and return it
-		if ( !$found ) {
-			$text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
-			wfProfileOut( $fname );
-			return array( 'object' => $text );
-		}
-
-		# Expand DOM-style return values in a child frame
-		if ( $isChildObj ) {
-			# Clean up argument array
-			$newFrame = $frame->newChild( $args, $title );
-
-			if ( $nowiki ) {
-				$text = $newFrame->expand( $text, PPFrame::RECOVER_ORIG );
-			} elseif ( $titleText !== false && $newFrame->isEmpty() ) {
-				# Expansion is eligible for the empty-frame cache
-				if ( isset( $this->mTplExpandCache[$titleText] ) ) {
-					$text = $this->mTplExpandCache[$titleText];
-				} else {
-					$text = $newFrame->expand( $text );
-					$this->mTplExpandCache[$titleText] = $text;
-				}
-			} else {
-				# Uncached expansion
-				$text = $newFrame->expand( $text );
-			}
-		}
-		if ( $isLocalObj && $nowiki ) {
-			$text = $frame->expand( $text, PPFrame::RECOVER_ORIG );
-			$isLocalObj = false;
-		}
-
-		# Replace raw HTML by a placeholder
-		# Add a blank line preceding, to prevent it from mucking up
-		# immediately preceding headings
-		if ( $isHTML ) {
-			$text = "\n\n" . $this->insertStripItem( $text );
-		}
-		# Escape nowiki-style return values
-		elseif ( $nowiki && ( $this->ot['html'] || $this->ot['pre'] ) ) {
-			$text = wfEscapeWikiText( $text );
-		}
-		# Bug 529: if the template begins with a table or block-level
-		# element, it should be treated as beginning a new line.
-		# This behaviour is somewhat controversial.
-		elseif ( is_string( $text ) && !$piece['lineStart'] && preg_match('/^(?:{\\||:|;|#|\*)/', $text)) /*}*/{
-			$text = "\n" . $text;
-		}
-
-		if ( is_string( $text ) && !$this->incrementIncludeSize( 'post-expand', strlen( $text ) ) ) {
-			# Error, oversize inclusion
-			$text = "[[$originalTitle]]" .
-				$this->insertStripItem( '' );
-			$this->limitationWarn( 'post-expand-template-inclusion' );
-		}
-
-		if ( $isLocalObj ) {
-			$ret = array( 'object' => $text );
-		} else {
-			$ret = array( 'text' => $text );
-		}
-
-		wfProfileOut( $fname );
-		return $ret;
-	}
-
-	/**
-	 * Get the semi-parsed DOM representation of a template with a given title,
-	 * and its redirect destination title. Cached.
-	 */
-	function getTemplateDom( $title ) {
-		$cacheTitle = $title;
-		$titleText = $title->getPrefixedDBkey();
-
-		if ( isset( $this->mTplRedirCache[$titleText] ) ) {
-			list( $ns, $dbk ) = $this->mTplRedirCache[$titleText];
-			$title = Title::makeTitle( $ns, $dbk );
-			$titleText = $title->getPrefixedDBkey();
-		}
-		if ( isset( $this->mTplDomCache[$titleText] ) ) {
-			return array( $this->mTplDomCache[$titleText], $title );
-		}
-
-		// Cache miss, go to the database
-		list( $text, $title ) = $this->fetchTemplateAndTitle( $title );
-
-		if ( $text === false ) {
-			$this->mTplDomCache[$titleText] = false;
-			return array( false, $title );
-		}
-
-		$dom = $this->preprocessToDom( $text, self::PTD_FOR_INCLUSION );
-		$this->mTplDomCache[ $titleText ] = $dom;
-
-		if (! $title->equals($cacheTitle)) {
-			$this->mTplRedirCache[$cacheTitle->getPrefixedDBkey()] =
-				array( $title->getNamespace(),$cdb = $title->getDBkey() );
-		}
-
-		return array( $dom, $title );
-	}
-
-	/**
-	 * Fetch the unparsed text of a template and register a reference to it.
-	 */
-	function fetchTemplateAndTitle( $title ) {
-		$templateCb = $this->mOptions->getTemplateCallback();
-		$stuff = call_user_func( $templateCb, $title, $this );
-		$text = $stuff['text'];
-		$finalTitle = isset( $stuff['finalTitle'] ) ? $stuff['finalTitle'] : $title;
-		if ( isset( $stuff['deps'] ) ) {
-			foreach ( $stuff['deps'] as $dep ) {
-				$this->mOutput->addTemplate( $dep['title'], $dep['page_id'], $dep['rev_id'] );
-			}
-		}
-		return array($text,$finalTitle);
-	}
-
-	function fetchTemplate( $title ) {
-		$rv = $this->fetchTemplateAndTitle($title);
-		return $rv[0];
-	}
-
-	/**
-	 * Static function to get a template
-	 * Can be overridden via ParserOptions::setTemplateCallback().
-	 */
-	static function statelessFetchTemplate( $title, $parser=false ) {
-		$text = $skip = false;
-		$finalTitle = $title;
-		$deps = array();
-
-		// Loop to fetch the article, with up to 1 redirect
-		for ( $i = 0; $i < 2 && is_object( $title ); $i++ ) {
-			# Give extensions a chance to select the revision instead
-			$id = false; // Assume current
-			wfRunHooks( 'BeforeParserFetchTemplateAndtitle', array( $parser, &$title, &$skip, &$id ) );
-
-			if( $skip ) {
-				$text = false;
-				$deps[] = array(
-					'title' => $title,
-					'page_id' => $title->getArticleID(),
-					'rev_id' => null );
-				break;
-			}
-			$rev = $id ? Revision::newFromId( $id ) : Revision::newFromTitle( $title );
-			$rev_id = $rev ? $rev->getId() : 0;
-			// If there is no current revision, there is no page
-			if( $id === false && !$rev ) {
-				$linkCache = LinkCache::singleton();
-				$linkCache->addBadLinkObj( $title );
-			}
-
-			$deps[] = array(
-				'title' => $title,
-				'page_id' => $title->getArticleID(),
-				'rev_id' => $rev_id );
-
-			if( $rev ) {
-				$text = $rev->getText();
-			} elseif( $title->getNamespace() == NS_MEDIAWIKI ) {
-				global $wgLang;
-				$message = $wgLang->lcfirst( $title->getText() );
-				$text = wfMsgForContentNoTrans( $message );
-				if( wfEmptyMsg( $message, $text ) ) {
-					$text = false;
-					break;
-				}
-			} else {
-				break;
-			}
-			if ( $text === false ) {
-				break;
-			}
-			// Redirect?
-			$finalTitle = $title;
-			$title = Title::newFromRedirect( $text );
-		}
-		return array(
-			'text' => $text,
-			'finalTitle' => $finalTitle,
-			'deps' => $deps );
-	}
-
-	/**
-	 * Transclude an interwiki link.
-	 */
-	function interwikiTransclude( $title, $action ) {
-		global $wgEnableScaryTranscluding;
-
-		if (!$wgEnableScaryTranscluding)
-			return wfMsg('scarytranscludedisabled');
-
-		$url = $title->getFullUrl( "action=$action" );
-
-		if (strlen($url) > 255)
-			return wfMsg('scarytranscludetoolong');
-		return $this->fetchScaryTemplateMaybeFromCache($url);
-	}
-
-	function fetchScaryTemplateMaybeFromCache($url) {
-		global $wgTranscludeCacheExpiry;
-		$dbr = wfGetDB(DB_SLAVE);
-		$obj = $dbr->selectRow('transcache', array('tc_time', 'tc_contents'),
-				array('tc_url' => $url));
-		if ($obj) {
-			$time = $obj->tc_time;
-			$text = $obj->tc_contents;
-			if ($time && time() < $time + $wgTranscludeCacheExpiry ) {
-				return $text;
-			}
-		}
-
-		$text = Http::get($url);
-		if (!$text)
-			return wfMsg('scarytranscludefailed', $url);
-
-		$dbw = wfGetDB(DB_MASTER);
-		$dbw->replace('transcache', array('tc_url'), array(
-			'tc_url' => $url,
-			'tc_time' => time(),
-			'tc_contents' => $text));
-		return $text;
-	}
-
-
-	/**
-	 * Triple brace replacement -- used for template arguments
-	 * @private
-	 */
-	function argSubstitution( $piece, $frame ) {
-		wfProfileIn( __METHOD__ );
-
-		$error = false;
-		$parts = $piece['parts'];
-		$nameWithSpaces = $frame->expand( $piece['title'] );
-		$argName = trim( $nameWithSpaces );
-		$object = false;
-		$text = $frame->getArgument( $argName );
-		if (  $text === false && $parts->getLength() > 0
-		  && (
-		    $this->ot['html']
-		    || $this->ot['pre']
-		    || ( $this->ot['wiki'] && $frame->isTemplate() )
-		  )
-		) {
-			# No match in frame, use the supplied default
-			$object = $parts->item( 0 )->getChildren();
-		}
-		if ( !$this->incrementIncludeSize( 'arg', strlen( $text ) ) ) {
-			$error = '';
-			$this->limitationWarn( 'post-expand-template-argument' );
-		}
-
-		if ( $text === false && $object === false ) {
-			# No match anywhere
-			$object = $frame->virtualBracketedImplode( '{{{', '|', '}}}', $nameWithSpaces, $parts );
-		}
-		if ( $error !== false ) {
-			$text .= $error;
-		}
-		if ( $object !== false ) {
-			$ret = array( 'object' => $object );
-		} else {
-			$ret = array( 'text' => $text );
-		}
-
-		wfProfileOut( __METHOD__ );
-		return $ret;
-	}
-
-	/**
-	 * Return the text to be used for a given extension tag.
-	 * This is the ghost of strip().
-	 *
-	 * @param array $params Associative array of parameters:
-	 *     name       PPNode for the tag name
-	 *     attr       PPNode for unparsed text where tag attributes are thought to be
-	 *     attributes Optional associative array of parsed attributes
-	 *     inner      Contents of extension element
-	 *     noClose    Original text did not have a close tag
-	 * @param PPFrame $frame
-	 */
-	function extensionSubstitution( $params, $frame ) {
-		global $wgRawHtml, $wgContLang;
-
-		$name = $frame->expand( $params['name'] );
-		$attrText = !isset( $params['attr'] ) ? null : $frame->expand( $params['attr'] );
-		$content = !isset( $params['inner'] ) ? null : $frame->expand( $params['inner'] );
-
-		$marker = "{$this->mUniqPrefix}-$name-" . sprintf('%08X', $this->mMarkerIndex++) . self::MARKER_SUFFIX;
-
-		if ( $this->ot['html'] ) {
-			$name = strtolower( $name );
-
-			$attributes = Sanitizer::decodeTagAttributes( $attrText );
-			if ( isset( $params['attributes'] ) ) {
-				$attributes = $attributes + $params['attributes'];
-			}
-			switch ( $name ) {
-				case 'html':
-					if( $wgRawHtml ) {
-						$output = $content;
-						break;
-					} else {
-						throw new MWException( ' extension tag encountered unexpectedly' );
-					}
-				case 'nowiki':
-					$output = Xml::escapeTagsOnly( $content );
-					break;
-				case 'math':
-					$output = $wgContLang->armourMath(
-						MathRenderer::renderMath( $content, $attributes ) );
-					break;
-				case 'gallery':
-					$output = $this->renderImageGallery( $content, $attributes );
-					break;
-				default:
-					if( isset( $this->mTagHooks[$name] ) ) {
-						# Workaround for PHP bug 35229 and similar
-						if ( !is_callable( $this->mTagHooks[$name] ) ) {
-							throw new MWException( "Tag hook for $name is not callable\n" );
-						}
-						$output = call_user_func_array( $this->mTagHooks[$name],
-							array( $content, $attributes, $this ) );
-					} else {
-						$output = 'Invalid tag extension name: ' .
-							htmlspecialchars( $name ) . '';
-					}
-			}
-		} else {
-			if ( is_null( $attrText ) ) {
-				$attrText = '';
-			}
-			if ( isset( $params['attributes'] ) ) {
-				foreach ( $params['attributes'] as $attrName => $attrValue ) {
-					$attrText .= ' ' . htmlspecialchars( $attrName ) . '="' .
-						htmlspecialchars( $attrValue ) . '"';
-				}
-			}
-			if ( $content === null ) {
-				$output = "<$name$attrText/>";
-			} else {
-				$close = is_null( $params['close'] ) ? '' : $frame->expand( $params['close'] );
-				$output = "<$name$attrText>$content$close";
-			}
-		}
-
-		if ( $name == 'html' || $name == 'nowiki' ) {
-			$this->mStripState->nowiki->setPair( $marker, $output );
-		} else {
-			$this->mStripState->general->setPair( $marker, $output );
-		}
-		return $marker;
-	}
-
-	/**
-	 * Increment an include size counter
-	 *
-	 * @param string $type The type of expansion
-	 * @param integer $size The size of the text
-	 * @return boolean False if this inclusion would take it over the maximum, true otherwise
-	 */
-	function incrementIncludeSize( $type, $size ) {
-		if ( $this->mIncludeSizes[$type] + $size > $this->mOptions->getMaxIncludeSize( $type ) ) {
-			return false;
-		} else {
-			$this->mIncludeSizes[$type] += $size;
-			return true;
-		}
-	}
-
-	/**
-	 * Increment the expensive function count
-	 *
-	 * @return boolean False if the limit has been exceeded
-	 */
-	function incrementExpensiveFunctionCount() {
-		global $wgExpensiveParserFunctionLimit;
-		$this->mExpensiveFunctionCount++;
-		if($this->mExpensiveFunctionCount <= $wgExpensiveParserFunctionLimit) {
-			return true;
-		}
-		return false;
-	}
-
-	/**
-	 * Strip double-underscore items like __NOGALLERY__ and __NOTOC__
-	 * Fills $this->mDoubleUnderscores, returns the modified text
-	 */
-	function doDoubleUnderscore( $text ) {
-		// The position of __TOC__ needs to be recorded
-		$mw = MagicWord::get( 'toc' );
-		if( $mw->match( $text ) ) {
-			$this->mShowToc = true;
-			$this->mForceTocPosition = true;
-
-			// Set a placeholder. At the end we'll fill it in with the TOC.
-			$text = $mw->replace( '', $text, 1 );
-
-			// Only keep the first one.
-			$text = $mw->replace( '', $text );
-		}
-
-		// Now match and remove the rest of them
-		$mwa = MagicWord::getDoubleUnderscoreArray();
-		$this->mDoubleUnderscores = $mwa->matchAndRemove( $text );
-
-		if ( isset( $this->mDoubleUnderscores['nogallery'] ) ) {
-			$this->mOutput->mNoGallery = true;
-		}
-		if ( isset( $this->mDoubleUnderscores['notoc'] ) && !$this->mForceTocPosition ) {
-			$this->mShowToc = false;
-		}
-		if ( isset( $this->mDoubleUnderscores['hiddencat'] ) && $this->mTitle->getNamespace() == NS_CATEGORY ) {
-			$this->mOutput->setProperty( 'hiddencat', 'y' );
-
-			$containerCategory = Title::makeTitleSafe( NS_CATEGORY, wfMsgForContent( 'hidden-category-category' ) );
-			if ( $containerCategory ) {
-				$this->mOutput->addCategory( $containerCategory->getDBkey(), $this->getDefaultSort() );
-			} else {
-				wfDebug( __METHOD__.": [[MediaWiki:hidden-category-category]] is not a valid title!\n" );
-			}
-		}
-		return $text;
-	}
-
-	/**
-	 * This function accomplishes several tasks:
-	 * 1) Auto-number headings if that option is enabled
-	 * 2) Add an [edit] link to sections for users who have enabled the option and can edit the page
-	 * 3) Add a Table of contents on the top for users who have enabled the option
-	 * 4) Auto-anchor headings
-	 *
-	 * It loops through all headlines, collects the necessary data, then splits up the
-	 * string and re-inserts the newly formatted headlines.
-	 *
-	 * @param string $text
-	 * @param boolean $isMain
-	 * @private
-	 */
-	function formatHeadings( $text, $isMain=true ) {
-		global $wgMaxTocLevel, $wgContLang;
-
-		$doNumberHeadings = $this->mOptions->getNumberHeadings();
-		if( !$this->mTitle->quickUserCan( 'edit' ) ) {
-			$showEditLink = 0;
-		} else {
-			$showEditLink = $this->mOptions->getEditSection();
-		}
-
-		# Inhibit editsection links if requested in the page
-		if ( isset( $this->mDoubleUnderscores['noeditsection'] ) ) {
-			$showEditLink = 0;
-		}
-
-		# Get all headlines for numbering them and adding funky stuff like [edit]
-		# links - this is for later, but we need the number of headlines right now
-		$matches = array();
-		$numMatches = preg_match_all( '/[1-6])(?P.*?'.'>)(?P
    .*?)<\/H[1-6] *>/i', $text, $matches );
-
-		# if there are fewer than 4 headlines in the article, do not show TOC
-		# unless it's been explicitly enabled.
-		$enoughToc = $this->mShowToc &&
-			(($numMatches >= 4) || $this->mForceTocPosition);
-
-		# Allow user to stipulate that a page should have a "new section"
-		# link added via __NEWSECTIONLINK__
-		if ( isset( $this->mDoubleUnderscores['newsectionlink'] ) ) {
-			$this->mOutput->setNewSection( true );
-		}
-
-		# if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
-		# override above conditions and always show TOC above first header
-		if ( isset( $this->mDoubleUnderscores['forcetoc'] ) ) {
-			$this->mShowToc = true;
-			$enoughToc = true;
-		}
-
-		# We need this to perform operations on the HTML
-		$sk = $this->mOptions->getSkin();
-
-		# headline counter
-		$headlineCount = 0;
-		$numVisible = 0;
-
-		# Ugh .. the TOC should have neat indentation levels which can be
-		# passed to the skin functions. These are determined here
-		$toc = '';
-		$full = '';
-		$head = array();
-		$sublevelCount = array();
-		$levelCount = array();
-		$toclevel = 0;
-		$level = 0;
-		$prevlevel = 0;
-		$toclevel = 0;
-		$prevtoclevel = 0;
-		$markerRegex = "{$this->mUniqPrefix}-h-(\d+)-" . self::MARKER_SUFFIX;
-		$baseTitleText = $this->mTitle->getPrefixedDBkey();
-		$tocraw = array();
-
-		foreach( $matches[3] as $headline ) {
-			$isTemplate = false;
-			$titleText = false;
-			$sectionIndex = false;
-			$numbering = '';
-			$markerMatches = array();
-			if (preg_match("/^$markerRegex/", $headline, $markerMatches)) {
-				$serial = $markerMatches[1];
-				list( $titleText, $sectionIndex ) = $this->mHeadings[$serial];
-				$isTemplate = ($titleText != $baseTitleText);
-				$headline = preg_replace("/^$markerRegex/", "", $headline);
-			}
-
-			if( $toclevel ) {
-				$prevlevel = $level;
-				$prevtoclevel = $toclevel;
-			}
-			$level = $matches[1][$headlineCount];
-
-			if( $doNumberHeadings || $enoughToc ) {
-
-				if ( $level > $prevlevel ) {
-					# Increase TOC level
-					$toclevel++;
-					$sublevelCount[$toclevel] = 0;
-					if( $toclevel<$wgMaxTocLevel ) {
-						$prevtoclevel = $toclevel;
-						$toc .= $sk->tocIndent();
-						$numVisible++;
-					}
-				}
-				elseif ( $level < $prevlevel && $toclevel > 1 ) {
-					# Decrease TOC level, find level to jump to
-
-					if ( $toclevel == 2 && $level <= $levelCount[1] ) {
-						# Can only go down to level 1
-						$toclevel = 1;
-					} else {
-						for ($i = $toclevel; $i > 0; $i--) {
-							if ( $levelCount[$i] == $level ) {
-								# Found last matching level
-								$toclevel = $i;
-								break;
-							}
-							elseif ( $levelCount[$i] < $level ) {
-								# Found first matching level below current level
-								$toclevel = $i + 1;
-								break;
-							}
-						}
-					}
-					if( $toclevel<$wgMaxTocLevel ) {
-						if($prevtoclevel < $wgMaxTocLevel) {
-							# Unindent only if the previous toc level was shown :p
-							$toc .= $sk->tocUnindent( $prevtoclevel - $toclevel );
-							$prevtoclevel = $toclevel;
-						} else {
-							$toc .= $sk->tocLineEnd();
-						}
-					}
-				}
-				else {
-					# No change in level, end TOC line
-					if( $toclevel<$wgMaxTocLevel ) {
-						$toc .= $sk->tocLineEnd();
-					}
-				}
-
-				$levelCount[$toclevel] = $level;
-
-				# count number of headlines for each level
-				@$sublevelCount[$toclevel]++;
-				$dot = 0;
-				for( $i = 1; $i <= $toclevel; $i++ ) {
-					if( !empty( $sublevelCount[$i] ) ) {
-						if( $dot ) {
-							$numbering .= '.';
-						}
-						$numbering .= $wgContLang->formatNum( $sublevelCount[$i] );
-						$dot = 1;
-					}
-				}
-			}
-
-			# The safe header is a version of the header text safe to use for links
-			# Avoid insertion of weird stuff like  by expanding the relevant sections
-			$safeHeadline = $this->mStripState->unstripBoth( $headline );
-
-			# Remove link placeholders by the link text.
-			#     
-			# turns into
-			#     link text with suffix
-			$safeHeadline = preg_replace( '//e',
-							    "\$this->mLinkHolders['texts'][\$1]",
-							    $safeHeadline );
-			$safeHeadline = preg_replace( '//e',
-							    "\$this->mInterwikiLinkHolders['texts'][\$1]",
-							    $safeHeadline );
-
-			# Strip out HTML (other than plain  and : bug 8393)
-			$tocline = preg_replace(
-				array( '#<(?!/?(sup|sub)).*?'.'>#', '#<(/?(sup|sub)).*?'.'>#' ),
-				array( '',                          '<$1>'),
-				$safeHeadline
-			);
-			$tocline = trim( $tocline );
-
-			# For the anchor, strip out HTML-y stuff period
-			$safeHeadline = preg_replace( '/<.*?'.'>/', '', $safeHeadline );
-			$safeHeadline = trim( $safeHeadline );
-
-			# Save headline for section edit hint before it's escaped
-			$headlineHint = $safeHeadline;
-			$safeHeadline = Sanitizer::escapeId( $safeHeadline );
-			# HTML names must be case-insensitively unique (bug 10721)
-			$arrayKey = strtolower( $safeHeadline );
-
-			# count how many in assoc. array so we can track dupes in anchors
-			isset( $refers[$arrayKey] ) ? $refers[$arrayKey]++ : $refers[$arrayKey] = 1;
-			$refcount[$headlineCount] = $refers[$arrayKey];
-
-			# Don't number the heading if it is the only one (looks silly)
-			if( $doNumberHeadings && count( $matches[3] ) > 1) {
-				# the two are different if the line contains a link
-				$headline=$numbering . ' ' . $headline;
-			}
-
-			# Create the anchor for linking from the TOC to the section
-			$anchor = $safeHeadline;
-			if($refcount[$headlineCount] > 1 ) {
-				$anchor .= '_' . $refcount[$headlineCount];
-			}
-			if( $enoughToc && ( !isset($wgMaxTocLevel) || $toclevel<$wgMaxTocLevel ) ) {
-				$toc .= $sk->tocLine($anchor, $tocline, $numbering, $toclevel);
-				$tocraw[] = array( 'toclevel' => $toclevel, 'level' => $level, 'line' => $tocline, 'number' => $numbering );
-			}
-			# give headline the correct  tag
-			if( $showEditLink && $sectionIndex !== false ) {
-				if( $isTemplate ) {
-					# Put a T flag in the section identifier, to indicate to extractSections()
-					# that sections inside  should be counted.
-					$editlink = $sk->editSectionLinkForOther($titleText, "T-$sectionIndex");
-				} else {
-					$editlink = $sk->editSectionLink($this->mTitle, $sectionIndex, $headlineHint);
-				}
-			} else {
-				$editlink = '';
-			}
-			$head[$headlineCount] = $sk->makeHeadline( $level, $matches['attrib'][$headlineCount], $anchor, $headline, $editlink );
-
-			$headlineCount++;
-		}
-
-		$this->mOutput->setSections( $tocraw );
-
-		# Never ever show TOC if no headers
-		if( $numVisible < 1 ) {
-			$enoughToc = false;
-		}
-
-		if( $enoughToc ) {
-			if( $prevtoclevel > 0 && $prevtoclevel < $wgMaxTocLevel ) {
-				$toc .= $sk->tocUnindent( $prevtoclevel - 1 );
-			}
-			$toc = $sk->tocList( $toc );
-		}
-
-		# split up and insert constructed headlines
-
-		$blocks = preg_split( '/.*?<\/H[1-6]>/i', $text );
-		$i = 0;
-
-		foreach( $blocks as $block ) {
-			if( $showEditLink && $headlineCount > 0 && $i == 0 && $block != "\n" ) {
-				# This is the [edit] link that appears for the top block of text when
-				# section editing is enabled
-
-				# Disabled because it broke block formatting
-				# For example, a bullet point in the top line
-				# $full .= $sk->editSectionLink(0);
-			}
-			$full .= $block;
-			if( $enoughToc && !$i && $isMain && !$this->mForceTocPosition ) {
-				# Top anchor now in skin
-				$full = $full.$toc;
-			}
-
-			if( !empty( $head[$i] ) ) {
-				$full .= $head[$i];
-			}
-			$i++;
-		}
-		if( $this->mForceTocPosition ) {
-			return str_replace( '', $toc, $full );
-		} else {
-			return $full;
-		}
-	}
-
-	/**
-	 * Transform wiki markup when saving a page by doing \r\n -> \n
-	 * conversion, substitting signatures, {{subst:}} templates, etc.
-	 *
-	 * @param string $text the text to transform
-	 * @param Title &$title the Title object for the current article
-	 * @param User &$user the User object describing the current user
-	 * @param ParserOptions $options parsing options
-	 * @param bool $clearState whether to clear the parser state first
-	 * @return string the altered wiki markup
-	 * @public
-	 */
-	function preSaveTransform( $text, &$title, $user, $options, $clearState = true ) {
-		$this->mOptions = $options;
-		$this->setTitle( $title );
-		$this->setOutputType( self::OT_WIKI );
-
-		if ( $clearState ) {
-			$this->clearState();
-		}
-
-		$pairs = array(
-			"\r\n" => "\n",
-		);
-		$text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text );
-		$text = $this->pstPass2( $text, $user );
-		$text = $this->mStripState->unstripBoth( $text );
-		return $text;
-	}
-
-	/**
-	 * Pre-save transform helper function
-	 * @private
-	 */
-	function pstPass2( $text, $user ) {
-		global $wgContLang, $wgLocaltimezone;
-
-		/* Note: This is the timestamp saved as hardcoded wikitext to
-		 * the database, we use $wgContLang here in order to give
-		 * everyone the same signature and use the default one rather
-		 * than the one selected in each user's preferences.
-		 *
-		 * (see also bug 12815)
-		 */
-		$ts = $this->mOptions->getTimestamp();
-		$tz = 'UTC';
-		if ( isset( $wgLocaltimezone ) ) {
-			$unixts = wfTimestamp( TS_UNIX, $ts );
-			$oldtz = getenv( 'TZ' );
-			putenv( 'TZ='.$wgLocaltimezone );
-			$ts = date( 'YmdHis', $unixts );
-			$tz = date( 'T', $unixts );  # might vary on DST changeover!
-			putenv( 'TZ='.$oldtz );
-		}
-		$d = $wgContLang->timeanddate( $ts, false, false ) . " ($tz)";
-
-		# Variable replacement
-		# Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
-		$text = $this->replaceVariables( $text );
-
-		# Signatures
-		$sigText = $this->getUserSig( $user );
-		$text = strtr( $text, array(
-			'~~~~~' => $d,
-			'~~~~' => "$sigText $d",
-			'~~~' => $sigText
-		) );
-
-		# Context links: [[|name]] and [[name (context)|]]
-		#
-		global $wgLegalTitleChars;
-		$tc = "[$wgLegalTitleChars]";
-		$nc = '[ _0-9A-Za-z\x80-\xff-]'; # Namespaces can use non-ascii!
-
-		$p1 = "/\[\[(:?$nc+:|:|)($tc+?)( \\($tc+\\))\\|]]/";		# [[ns:page (context)|]]
-		$p3 = "/\[\[(:?$nc+:|:|)($tc+?)( \\($tc+\\)|)(, $tc+|)\\|]]/";	# [[ns:page (context), context|]]
-		$p2 = "/\[\[\\|($tc+)]]/";					# [[|page]]
-
-		# try $p1 first, to turn "[[A, B (C)|]]" into "[[A, B (C)|A, B]]"
-		$text = preg_replace( $p1, '[[\\1\\2\\3|\\2]]', $text );
-		$text = preg_replace( $p3, '[[\\1\\2\\3\\4|\\2]]', $text );
-
-		$t = $this->mTitle->getText();
-		$m = array();
-		if ( preg_match( "/^($nc+:|)$tc+?( \\($tc+\\))$/", $t, $m ) ) {
-			$text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
-		} elseif ( preg_match( "/^($nc+:|)$tc+?(, $tc+|)$/", $t, $m ) && '' != "$m[1]$m[2]" ) {
-			$text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
-		} else {
-			# if there's no context, don't bother duplicating the title
-			$text = preg_replace( $p2, '[[\\1]]', $text );
-		}
-
-		# Trim trailing whitespace
-		$text = rtrim( $text );
-
-		return $text;
-	}
-
-	/**
-	 * Fetch the user's signature text, if any, and normalize to
-	 * validated, ready-to-insert wikitext.
-	 *
-	 * @param User $user
-	 * @return string
-	 * @private
-	 */
-	function getUserSig( &$user ) {
-		global $wgMaxSigChars;
-
-		$username = $user->getName();
-		$nickname = $user->getOption( 'nickname' );
-		$nickname = $nickname === '' ? $username : $nickname;
-
-		if( mb_strlen( $nickname ) > $wgMaxSigChars ) {
-			$nickname = $username;
-			wfDebug( __METHOD__ . ": $username has overlong signature.\n" );
-		} elseif( $user->getBoolOption( 'fancysig' ) !== false ) {
-			# Sig. might contain markup; validate this
-			if( $this->validateSig( $nickname ) !== false ) {
-				# Validated; clean up (if needed) and return it
-				return $this->cleanSig( $nickname, true );
-			} else {
-				# Failed to validate; fall back to the default
-				$nickname = $username;
-				wfDebug( "Parser::getUserSig: $username has bad XML tags in signature.\n" );
-			}
-		}
-
-		// Make sure nickname doesnt get a sig in a sig
-		$nickname = $this->cleanSigInSig( $nickname );
-
-		# If we're still here, make it a link to the user page
-		$userText = wfEscapeWikiText( $username );
-		$nickText = wfEscapeWikiText( $nickname );
-		if ( $user->isAnon() )  {
-			return wfMsgExt( 'signature-anon', array( 'content', 'parsemag' ), $userText, $nickText );
-		} else {
-			return wfMsgExt( 'signature', array( 'content', 'parsemag' ), $userText, $nickText );
-		}
-	}
-
-	/**
-	 * Check that the user's signature contains no bad XML
-	 *
-	 * @param string $text
-	 * @return mixed An expanded string, or false if invalid.
-	 */
-	function validateSig( $text ) {
-		return( wfIsWellFormedXmlFragment( $text ) ? $text : false );
-	}
-
-	/**
-	 * Clean up signature text
-	 *
-	 * 1) Strip ~~~, ~~~~ and ~~~~~ out of signatures @see cleanSigInSig
-	 * 2) Substitute all transclusions
-	 *
-	 * @param string $text
-	 * @param $parsing Whether we're cleaning (preferences save) or parsing
-	 * @return string Signature text
-	 */
-	function cleanSig( $text, $parsing = false ) {
-		if ( !$parsing ) {
-			global $wgTitle;
-			$this->clearState();
-			$this->setTitle( $wgTitle );
-			$this->mOptions = new ParserOptions;
-			$this->setOutputType = self::OT_PREPROCESS;
-		}
-
-		# FIXME: regex doesn't respect extension tags or nowiki
-		#  => Move this logic to braceSubstitution()
-		$substWord = MagicWord::get( 'subst' );
-		$substRegex = '/\{\{(?!(?:' . $substWord->getBaseRegex() . '))/x' . $substWord->getRegexCase();
-		$substText = '{{' . $substWord->getSynonym( 0 );
-
-		$text = preg_replace( $substRegex, $substText, $text );
-		$text = $this->cleanSigInSig( $text );
-		$dom = $this->preprocessToDom( $text );
-		$frame = $this->getPreprocessor()->newFrame();
-		$text = $frame->expand( $dom );
-
-		if ( !$parsing ) {
-			$text = $this->mStripState->unstripBoth( $text );
-		}
-
-		return $text;
-	}
-
-	/**
-	 * Strip ~~~, ~~~~ and ~~~~~ out of signatures
-	 * @param string $text
-	 * @return string Signature text with /~{3,5}/ removed
-	 */
-	function cleanSigInSig( $text ) {
-		$text = preg_replace( '/~{3,5}/', '', $text );
-		return $text;
-	}
-
-	/**
-	 * Set up some variables which are usually set up in parse()
-	 * so that an external function can call some class members with confidence
-	 * @public
-	 */
-	function startExternalParse( &$title, $options, $outputType, $clearState = true ) {
-		$this->setTitle( $title );
-		$this->mOptions = $options;
-		$this->setOutputType( $outputType );
-		if ( $clearState ) {
-			$this->clearState();
-		}
-	}
-
-	/**
-	 * Wrapper for preprocess()
-	 *
-	 * @param string $text the text to preprocess
-	 * @param ParserOptions $options  options
-	 * @return string
-	 * @public
-	 */
-	function transformMsg( $text, $options ) {
-		global $wgTitle;
-		static $executing = false;
-
-		$fname = "Parser::transformMsg";
-
-		# Guard against infinite recursion
-		if ( $executing ) {
-			return $text;
-		}
-		$executing = true;
-
-		wfProfileIn($fname);
-		$text = $this->preprocess( $text, $wgTitle, $options );
-
-		$executing = false;
-		wfProfileOut($fname);
-		return $text;
-	}
-
-	/**
-	 * Create an HTML-style tag, e.g. special text
-	 * The callback should have the following form:
-	 *    function myParserHook( $text, $params, &$parser ) { ... }
-	 *
-	 * Transform and return $text. Use $parser for any required context, e.g. use
-	 * $parser->getTitle() and $parser->getOptions() not $wgTitle or $wgOut->mParserOptions
-	 *
-	 * @public
-	 *
-	 * @param mixed $tag The tag to use, e.g. 'hook' for 
-	 * @param mixed $callback The callback function (and object) to use for the tag
-	 *
-	 * @return The old value of the mTagHooks array associated with the hook
-	 */
-	function setHook( $tag, $callback ) {
-		$tag = strtolower( $tag );
-		$oldVal = isset( $this->mTagHooks[$tag] ) ? $this->mTagHooks[$tag] : null;
-		$this->mTagHooks[$tag] = $callback;
-		if( !in_array( $tag, $this->mStripList ) ) {
-			$this->mStripList[] = $tag;
-		}
-
-		return $oldVal;
-	}
-
-	function setTransparentTagHook( $tag, $callback ) {
-		$tag = strtolower( $tag );
-		$oldVal = isset( $this->mTransparentTagHooks[$tag] ) ? $this->mTransparentTagHooks[$tag] : null;
-		$this->mTransparentTagHooks[$tag] = $callback;
-
-		return $oldVal;
-	}
-
-	/**
-	 * Remove all tag hooks
-	 */
-	function clearTagHooks() {
-		$this->mTagHooks = array();
-		$this->mStripList = $this->mDefaultStripList;
-	}
-
-	/**
-	 * Create a function, e.g. {{sum:1|2|3}}
-	 * The callback function should have the form:
-	 *    function myParserFunction( &$parser, $arg1, $arg2, $arg3 ) { ... }
-	 *
-	 * The callback may either return the text result of the function, or an array with the text
-	 * in element 0, and a number of flags in the other elements. The names of the flags are
-	 * specified in the keys. Valid flags are:
-	 *   found                     The text returned is valid, stop processing the template. This
-	 *                             is on by default.
-	 *   nowiki                    Wiki markup in the return value should be escaped
-	 *   isHTML                    The returned text is HTML, armour it against wikitext transformation
-	 *
-	 * @public
-	 *
-	 * @param string $id The magic word ID
-	 * @param mixed $callback The callback function (and object) to use
-	 * @param integer $flags a combination of the following flags:
-	 *                SFH_NO_HASH No leading hash, i.e. {{plural:...}} instead of {{#if:...}}
-	 *
-	 * @return The old callback function for this name, if any
-	 */
-	function setFunctionHook( $id, $callback, $flags = 0 ) {
-		$oldVal = isset( $this->mFunctionHooks[$id] ) ? $this->mFunctionHooks[$id][0] : null;
-		$this->mFunctionHooks[$id] = array( $callback, $flags );
-
-		# Add to function cache
-		$mw = MagicWord::get( $id );
-		if( !$mw )
-			throw new MWException( 'Parser::setFunctionHook() expecting a magic word identifier.' );
-
-		$synonyms = $mw->getSynonyms();
-		$sensitive = intval( $mw->isCaseSensitive() );
-
-		foreach ( $synonyms as $syn ) {
-			# Case
-			if ( !$sensitive ) {
-				$syn = strtolower( $syn );
-			}
-			# Add leading hash
-			if ( !( $flags & SFH_NO_HASH ) ) {
-				$syn = '#' . $syn;
-			}
-			# Remove trailing colon
-			if ( substr( $syn, -1, 1 ) == ':' ) {
-				$syn = substr( $syn, 0, -1 );
-			}
-			$this->mFunctionSynonyms[$sensitive][$syn] = $id;
-		}
-		return $oldVal;
-	}
-
-	/**
-	 * Get all registered function hook identifiers
-	 *
-	 * @return array
-	 */
-	function getFunctionHooks() {
-		return array_keys( $this->mFunctionHooks );
-	}
-
-	/**
-	 * Replace  link placeholders with actual links, in the buffer
-	 * Placeholders created in Skin::makeLinkObj()
-	 * Returns an array of link CSS classes, indexed by PDBK.
-	 * $options is a bit field, RLH_FOR_UPDATE to select for update
-	 */
-	function replaceLinkHolders( &$text, $options = 0 ) {
-		global $wgUser;
-		global $wgContLang;
-
-		$fname = 'Parser::replaceLinkHolders';
-		wfProfileIn( $fname );
-
-		$pdbks = array();
-		$colours = array();
-		$linkcolour_ids = array();
-		$sk = $this->mOptions->getSkin();
-		$linkCache = LinkCache::singleton();
-
-		if ( !empty( $this->mLinkHolders['namespaces'] ) ) {
-			wfProfileIn( $fname.'-check' );
-			$dbr = wfGetDB( DB_SLAVE );
-			$page = $dbr->tableName( 'page' );
-			$threshold = $wgUser->getOption('stubthreshold');
-
-			# Sort by namespace
-			asort( $this->mLinkHolders['namespaces'] );
-
-			# Generate query
-			$query = false;
-			$current = null;
-			foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) {
-				# Make title object
-				$title = $this->mLinkHolders['titles'][$key];
-
-				# Skip invalid entries.
-				# Result will be ugly, but prevents crash.
-				if ( is_null( $title ) ) {
-					continue;
-				}
-				$pdbk = $pdbks[$key] = $title->getPrefixedDBkey();
-
-				# Check if it's a static known link, e.g. interwiki
-				if ( $title->isAlwaysKnown() ) {
-					$colours[$pdbk] = '';
-				} elseif ( ( $id = $linkCache->getGoodLinkID( $pdbk ) ) != 0 ) {
-					$colours[$pdbk] = '';
-					$this->mOutput->addLink( $title, $id );
-				} elseif ( $linkCache->isBadLink( $pdbk ) ) {
-					$colours[$pdbk] = 'new';
-				} elseif ( $title->getNamespace() == NS_SPECIAL && !SpecialPage::exists( $pdbk ) ) {
-					$colours[$pdbk] = 'new';
-				} else {
-					# Not in the link cache, add it to the query
-					if ( !isset( $current ) ) {
-						$current = $ns;
-						$query =  "SELECT page_id, page_namespace, page_title, page_is_redirect, page_len";
-						$query .= " FROM $page WHERE (page_namespace=$ns AND page_title IN(";
-					} elseif ( $current != $ns ) {
-						$current = $ns;
-						$query .= ")) OR (page_namespace=$ns AND page_title IN(";
-					} else {
-						$query .= ', ';
-					}
-
-					$query .= $dbr->addQuotes( $this->mLinkHolders['dbkeys'][$key] );
-				}
-			}
-			if ( $query ) {
-				$query .= '))';
-				if ( $options & RLH_FOR_UPDATE ) {
-					$query .= ' FOR UPDATE';
-				}
-
-				$res = $dbr->query( $query, $fname );
-
-				# Fetch data and form into an associative array
-				# non-existent = broken
-				while ( $s = $dbr->fetchObject($res) ) {
-					$title = Title::makeTitle( $s->page_namespace, $s->page_title );
-					$pdbk = $title->getPrefixedDBkey();
-					$linkCache->addGoodLinkObj( $s->page_id, $title, $s->page_len, $s->page_is_redirect );
-					$this->mOutput->addLink( $title, $s->page_id );
-					$colours[$pdbk] = $sk->getLinkColour( $title, $threshold );
-					//add id to the extension todolist
-					$linkcolour_ids[$s->page_id] = $pdbk;
-				}
-				//pass an array of page_ids to an extension
-				wfRunHooks( 'GetLinkColours', array( $linkcolour_ids, &$colours ) );
-			}
-			wfProfileOut( $fname.'-check' );
-
-			# Do a second query for different language variants of links and categories
-			if($wgContLang->hasVariants()){
-				$linkBatch = new LinkBatch();
-				$variantMap = array(); // maps $pdbkey_Variant => $keys (of link holders)
-				$categoryMap = array(); // maps $category_variant => $category (dbkeys)
-				$varCategories = array(); // category replacements oldDBkey => newDBkey
-
-				$categories = $this->mOutput->getCategoryLinks();
-
-				// Add variants of links to link batch
-				foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) {
-					$title = $this->mLinkHolders['titles'][$key];
-					if ( is_null( $title ) )
-						continue;
-
-					$pdbk = $title->getPrefixedDBkey();
-					$titleText = $title->getText();
-
-					// generate all variants of the link title text
-					$allTextVariants = $wgContLang->convertLinkToAllVariants($titleText);
-
-					// if link was not found (in first query), add all variants to query
-					if ( !isset($colours[$pdbk]) ){
-						foreach($allTextVariants as $textVariant){
-							if($textVariant != $titleText){
-								$variantTitle = Title::makeTitle( $ns, $textVariant );
-								if(is_null($variantTitle)) continue;
-								$linkBatch->addObj( $variantTitle );
-								$variantMap[$variantTitle->getPrefixedDBkey()][] = $key;
-							}
-						}
-					}
-				}
-
-				// process categories, check if a category exists in some variant
-				foreach( $categories as $category ){
-					$variants = $wgContLang->convertLinkToAllVariants($category);
-					foreach($variants as $variant){
-						if($variant != $category){
-							$variantTitle = Title::newFromDBkey( Title::makeName(NS_CATEGORY,$variant) );
-							if(is_null($variantTitle)) continue;
-							$linkBatch->addObj( $variantTitle );
-							$categoryMap[$variant] = $category;
-						}
-					}
-				}
-
-
-				if(!$linkBatch->isEmpty()){
-					// construct query
-					$titleClause = $linkBatch->constructSet('page', $dbr);
-
-					$variantQuery =  "SELECT page_id, page_namespace, page_title, page_is_redirect, page_len";
-
-					$variantQuery .= " FROM $page WHERE $titleClause";
-					if ( $options & RLH_FOR_UPDATE ) {
-						$variantQuery .= ' FOR UPDATE';
-					}
-
-					$varRes = $dbr->query( $variantQuery, $fname );
-
-					// for each found variants, figure out link holders and replace
-					while ( $s = $dbr->fetchObject($varRes) ) {
-
-						$variantTitle = Title::makeTitle( $s->page_namespace, $s->page_title );
-						$varPdbk = $variantTitle->getPrefixedDBkey();
-						$vardbk = $variantTitle->getDBkey();
-
-						$holderKeys = array();
-						if(isset($variantMap[$varPdbk])){
-							$holderKeys = $variantMap[$varPdbk];
-							$linkCache->addGoodLinkObj( $s->page_id, $variantTitle, $s->page_len, $s->page_is_redirect );
-							$this->mOutput->addLink( $variantTitle, $s->page_id );
-						}
-
-						// loop over link holders
-						foreach($holderKeys as $key){
-							$title = $this->mLinkHolders['titles'][$key];
-							if ( is_null( $title ) ) continue;
-
-							$pdbk = $title->getPrefixedDBkey();
-
-							if(!isset($colours[$pdbk])){
-								// found link in some of the variants, replace the link holder data
-								$this->mLinkHolders['titles'][$key] = $variantTitle;
-								$this->mLinkHolders['dbkeys'][$key] = $variantTitle->getDBkey();
-
-								// set pdbk and colour
-								$pdbks[$key] = $varPdbk;
-								$colours[$varPdbk] = $sk->getLinkColour( $variantTitle, $threshold );
-								$linkcolour_ids[$s->page_id] = $pdbk;
-							}
-							wfRunHooks( 'GetLinkColours', array( $linkcolour_ids, &$colours ) );
-						}
-
-						// check if the object is a variant of a category
-						if(isset($categoryMap[$vardbk])){
-							$oldkey = $categoryMap[$vardbk];
-							if($oldkey != $vardbk)
-								$varCategories[$oldkey]=$vardbk;
-						}
-					}
-
-					// rebuild the categories in original order (if there are replacements)
-					if(count($varCategories)>0){
-						$newCats = array();
-						$originalCats = $this->mOutput->getCategories();
-						foreach($originalCats as $cat => $sortkey){
-							// make the replacement
-							if( array_key_exists($cat,$varCategories) )
-								$newCats[$varCategories[$cat]] = $sortkey;
-							else $newCats[$cat] = $sortkey;
-						}
-						$this->mOutput->setCategoryLinks($newCats);
-					}
-				}
-			}
-
-			# Construct search and replace arrays
-			wfProfileIn( $fname.'-construct' );
-			$replacePairs = array();
-			foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) {
-				$pdbk = $pdbks[$key];
-				$searchkey = "";
-				$title = $this->mLinkHolders['titles'][$key];
-				if ( !isset( $colours[$pdbk] ) || $colours[$pdbk] == 'new' ) {
-					$linkCache->addBadLinkObj( $title );
-					$colours[$pdbk] = 'new';
-					$this->mOutput->addLink( $title, 0 );
-					$replacePairs[$searchkey] = $sk->makeBrokenLinkObj( $title,
-									$this->mLinkHolders['texts'][$key],
-									$this->mLinkHolders['queries'][$key] );
-				} else {
-					$replacePairs[$searchkey] = $sk->makeColouredLinkObj( $title, $colours[$pdbk],
-									$this->mLinkHolders['texts'][$key],
-									$this->mLinkHolders['queries'][$key] );
-				}
-			}
-			$replacer = new HashtableReplacer( $replacePairs, 1 );
-			wfProfileOut( $fname.'-construct' );
-
-			# Do the thing
-			wfProfileIn( $fname.'-replace' );
-			$text = preg_replace_callback(
-				'/()/',
-				$replacer->cb(),
-				$text);
-
-			wfProfileOut( $fname.'-replace' );
-		}
-
-		# Now process interwiki link holders
-		# This is quite a bit simpler than internal links
-		if ( !empty( $this->mInterwikiLinkHolders['texts'] ) ) {
-			wfProfileIn( $fname.'-interwiki' );
-			# Make interwiki link HTML
-			$replacePairs = array();
-			foreach( $this->mInterwikiLinkHolders['texts'] as $key => $link ) {
-				$title = $this->mInterwikiLinkHolders['titles'][$key];
-				$replacePairs[$key] = $sk->makeLinkObj( $title, $link );
-			}
-			$replacer = new HashtableReplacer( $replacePairs, 1 );
-
-			$text = preg_replace_callback(
-				'//',
-				$replacer->cb(),
-				$text );
-			wfProfileOut( $fname.'-interwiki' );
-		}
-
-		wfProfileOut( $fname );
-		return $colours;
-	}
-
-	/**
-	 * Replace  link placeholders with plain text of links
-	 * (not HTML-formatted).
-	 * @param string $text
-	 * @return string
-	 */
-	function replaceLinkHoldersText( $text ) {
-		$fname = 'Parser::replaceLinkHoldersText';
-		wfProfileIn( $fname );
-
-		$text = preg_replace_callback(
-			'//',
-			array( &$this, 'replaceLinkHoldersTextCallback' ),
-			$text );
-
-		wfProfileOut( $fname );
-		return $text;
-	}
-
-	/**
-	 * @param array $matches
-	 * @return string
-	 * @private
-	 */
-	function replaceLinkHoldersTextCallback( $matches ) {
-		$type = $matches[1];
-		$key  = $matches[2];
-		if( $type == 'LINK' ) {
-			if( isset( $this->mLinkHolders['texts'][$key] ) ) {
-				return $this->mLinkHolders['texts'][$key];
-			}
-		} elseif( $type == 'IWLINK' ) {
-			if( isset( $this->mInterwikiLinkHolders['texts'][$key] ) ) {
-				return $this->mInterwikiLinkHolders['texts'][$key];
-			}
-		}
-		return $matches[0];
-	}
-
-	/**
-	 * Tag hook handler for 'pre'.
-	 */
-	function renderPreTag( $text, $attribs ) {
-		// Backwards-compatibility hack
-		$content = StringUtils::delimiterReplace( '', '', '$1', $text, 'i' );
-
-		$attribs = Sanitizer::validateTagAttributes( $attribs, 'pre' );
-		return wfOpenElement( 'pre', $attribs ) .
-			Xml::escapeTagsOnly( $content ) .
-			'
    ';
-	}
-
-	/**
-	 * Renders an image gallery from a text with one line per image.
-	 * text labels may be given by using |-style alternative text. E.g.
-	 *   Image:one.jpg|The number "1"
-	 *   Image:tree.jpg|A tree
-	 * given as text will return the HTML of a gallery with two images,
-	 * labeled 'The number "1"' and
-	 * 'A tree'.
-	 */
-	function renderImageGallery( $text, $params ) {
-		$ig = new ImageGallery();
-		$ig->setContextTitle( $this->mTitle );
-		$ig->setShowBytes( false );
-		$ig->setShowFilename( false );
-		$ig->setParser( $this );
-		$ig->setHideBadImages();
-		$ig->setAttributes( Sanitizer::validateTagAttributes( $params, 'table' ) );
-		$ig->useSkin( $this->mOptions->getSkin() );
-		$ig->mRevisionId = $this->mRevisionId;
-
-		if( isset( $params['caption'] ) ) {
-			$caption = $params['caption'];
-			$caption = htmlspecialchars( $caption );
-			$caption = $this->replaceInternalLinks( $caption );
-			$ig->setCaptionHtml( $caption );
-		}
-		if( isset( $params['perrow'] ) ) {
-			$ig->setPerRow( $params['perrow'] );
-		}
-		if( isset( $params['widths'] ) ) {
-			$ig->setWidths( $params['widths'] );
-		}
-		if( isset( $params['heights'] ) ) {
-			$ig->setHeights( $params['heights'] );
-		}
-
-		wfRunHooks( 'BeforeParserrenderImageGallery', array( &$this, &$ig ) );
-
-		$lines = explode( "\n", $text );
-		foreach ( $lines as $line ) {
-			# match lines like these:
-			# Image:someimage.jpg|This is some image
-			$matches = array();
-			preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
-			# Skip empty lines
-			if ( count( $matches ) == 0 ) {
-				continue;
-			}
-			
-			if ( strpos( $matches[0], '%' ) !== false )
-				$matches[1] = urldecode( $matches[1] );
-			$tp = Title::newFromText( $matches[1] );
-			$nt =& $tp;
-			if( is_null( $nt ) ) {
-				# Bogus title. Ignore these so we don't bomb out later.
-				continue;
-			}
-			if ( isset( $matches[3] ) ) {
-				$label = $matches[3];
-			} else {
-				$label = '';
-			}
-
-			$html = $this->recursiveTagParse( trim( $label ) );
-
-			$ig->add( $nt, $html );
-
-			# Only add real images (bug #5586)
-			if ( $nt->getNamespace() == NS_IMAGE ) {
-				$this->mOutput->addImage( $nt->getDBkey() );
-			}
-		}
-		return $ig->toHTML();
-	}
-
-	function getImageParams( $handler ) {
-		if ( $handler ) {
-			$handlerClass = get_class( $handler );
-		} else {
-			$handlerClass = '';
-		}
-		if ( !isset( $this->mImageParams[$handlerClass]  ) ) {
-			// Initialise static lists
-			static $internalParamNames = array(
-				'horizAlign' => array( 'left', 'right', 'center', 'none' ),
-				'vertAlign' => array( 'baseline', 'sub', 'super', 'top', 'text-top', 'middle',
-					'bottom', 'text-bottom' ),
-				'frame' => array( 'thumbnail', 'manualthumb', 'framed', 'frameless',
-					'upright', 'border' ),
-			);
-			static $internalParamMap;
-			if ( !$internalParamMap ) {
-				$internalParamMap = array();
-				foreach ( $internalParamNames as $type => $names ) {
-					foreach ( $names as $name ) {
-						$magicName = str_replace( '-', '_', "img_$name" );
-						$internalParamMap[$magicName] = array( $type, $name );
-					}
-				}
-			}
-
-			// Add handler params
-			$paramMap = $internalParamMap;
-			if ( $handler ) {
-				$handlerParamMap = $handler->getParamMap();
-				foreach ( $handlerParamMap as $magic => $paramName ) {
-					$paramMap[$magic] = array( 'handler', $paramName );
-				}
-			}
-			$this->mImageParams[$handlerClass] = $paramMap;
-			$this->mImageParamsMagicArray[$handlerClass] = new MagicWordArray( array_keys( $paramMap ) );
-		}
-		return array( $this->mImageParams[$handlerClass], $this->mImageParamsMagicArray[$handlerClass] );
-	}
-
-	/**
-	 * Parse image options text and use it to make an image
-	 */
-	function makeImage( $title, $options ) {
-		# Check if the options text is of the form "options|alt text"
-		# Options are:
-		#  * thumbnail       	make a thumbnail with enlarge-icon and caption, alignment depends on lang
-		#  * left		no resizing, just left align. label is used for alt= only
-		#  * right		same, but right aligned
-		#  * none		same, but not aligned
-		#  * ___px		scale to ___ pixels width, no aligning. e.g. use in taxobox
-		#  * center		center the image
-		#  * framed		Keep original image size, no magnify-button.
-		#  * frameless		like 'thumb' but without a frame. Keeps user preferences for width
-		#  * upright		reduce width for upright images, rounded to full __0 px
-		#  * border		draw a 1px border around the image
-		# vertical-align values (no % or length right now):
-		#  * baseline
-		#  * sub
-		#  * super
-		#  * top
-		#  * text-top
-		#  * middle
-		#  * bottom
-		#  * text-bottom
-
-		$parts = array_map( 'trim', explode( '|', $options) );
-		$sk = $this->mOptions->getSkin();
-
-		# Give extensions a chance to select the file revision for us
-		$skip = $time = $descQuery = false;
-		wfRunHooks( 'BeforeParserMakeImageLinkObj', array( &$this, &$title, &$skip, &$time, &$descQuery ) );
-
-		if ( $skip ) {
-			return $sk->makeLinkObj( $title );
-		}
-
-		# Get parameter map
-		$file = wfFindFile( $title, $time );
-		$handler = $file ? $file->getHandler() : false;
-
-		list( $paramMap, $mwArray ) = $this->getImageParams( $handler );
-
-		# Process the input parameters
-		$caption = '';
-		$params = array( 'frame' => array(), 'handler' => array(),
-			'horizAlign' => array(), 'vertAlign' => array() );
-		foreach( $parts as $part ) {
-			list( $magicName, $value ) = $mwArray->matchVariableStartToEnd( $part );
-			$validated = false;
-			if( isset( $paramMap[$magicName] ) ) {
-				list( $type, $paramName ) = $paramMap[$magicName];
-
-				// Special case; width and height come in one variable together
-				if( $type == 'handler' && $paramName == 'width' ) {
-					$m = array();
-					# (bug 13500) In both cases (width/height and width only),
-					# permit trailing "px" for backward compatibility.
-					if ( preg_match( '/^([0-9]*)x([0-9]*)\s*(?:px)?\s*$/', $value, $m ) ) {
-						$width = intval( $m[1] );
-						$height = intval( $m[2] );
-						if ( $handler->validateParam( 'width', $width ) ) {
-							$params[$type]['width'] = $width;
-							$validated = true;
-						}
-						if ( $handler->validateParam( 'height', $height ) ) {
-							$params[$type]['height'] = $height;
-							$validated = true;
-						}
-					} elseif ( preg_match( '/^[0-9]*\s*(?:px)?\s*$/', $value ) ) {
-						$width = intval( $value );
-						if ( $handler->validateParam( 'width', $width ) ) {
-							$params[$type]['width'] = $width;
-							$validated = true;
-						}
-					} // else no validation -- bug 13436
-				} else {
-					if ( $type == 'handler' ) {
-						# Validate handler parameter
-						$validated = $handler->validateParam( $paramName, $value );
-					} else {
-						# Validate internal parameters
-						switch( $paramName ) {
-						case "manualthumb":
-							/// @fixme - possibly check validity here?
-							/// downstream behavior seems odd with missing manual thumbs.
-							$validated = true;
-							break;
-						default:
-							// Most other things appear to be empty or numeric...
-							$validated = ( $value === false || is_numeric( trim( $value ) ) );
-						}
-					}
-
-					if ( $validated ) {
-						$params[$type][$paramName] = $value;
-					}
-				}
-			}
-			if ( !$validated ) {
-				$caption = $part;
-			}
-		}
-
-		# Process alignment parameters
-		if ( $params['horizAlign'] ) {
-			$params['frame']['align'] = key( $params['horizAlign'] );
-		}
-		if ( $params['vertAlign'] ) {
-			$params['frame']['valign'] = key( $params['vertAlign'] );
-		}
-
-		# Strip bad stuff out of the alt text
-		$alt = $this->replaceLinkHoldersText( $caption );
-
-		# make sure there are no placeholders in thumbnail attributes
-		# that are later expanded to html- so expand them now and
-		# remove the tags
-		$alt = $this->mStripState->unstripBoth( $alt );
-		$alt = Sanitizer::stripAllTags( $alt );
-
-		$params['frame']['alt'] = $alt;
-		$params['frame']['caption'] = $caption;
-
-		wfRunHooks( 'ParserMakeImageParams', array( $title, $file, &$params ) );
-
-		# Linker does the rest
-		$ret = $sk->makeImageLink2( $title, $file, $params['frame'], $params['handler'], $time, $descQuery );
-
-		# Give the handler a chance to modify the parser object
-		if ( $handler ) {
-			$handler->parserTransformHook( $this, $file );
-		}
-
-		return $ret;
-	}
-
-	/**
-	 * Set a flag in the output object indicating that the content is dynamic and
-	 * shouldn't be cached.
-	 */
-	function disableCache() {
-		wfDebug( "Parser output marked as uncacheable.\n" );
-		$this->mOutput->mCacheTime = -1;
-	}
-
-	/**#@+
-	 * Callback from the Sanitizer for expanding items found in HTML attribute
-	 * values, so they can be safely tested and escaped.
-	 * @param string $text
-	 * @param PPFrame $frame
-	 * @return string
-	 * @private
-	 */
-	function attributeStripCallback( &$text, $frame = false ) {
-		$text = $this->replaceVariables( $text, $frame );
-		$text = $this->mStripState->unstripBoth( $text );
-		return $text;
-	}
-
-	/**#@-*/
-
-	/**#@+
-	 * Accessor/mutator
-	 */
-	function Title( $x = NULL ) { return wfSetVar( $this->mTitle, $x ); }
-	function Options( $x = NULL ) { return wfSetVar( $this->mOptions, $x ); }
-	function OutputType( $x = NULL ) { return wfSetVar( $this->mOutputType, $x ); }
-	/**#@-*/
-
-	/**#@+
-	 * Accessor
-	 */
-	function getTags() { return array_merge( array_keys($this->mTransparentTagHooks), array_keys( $this->mTagHooks ) ); }
-	/**#@-*/
-
-
-	/**
-	 * Break wikitext input into sections, and either pull or replace
-	 * some particular section's text.
-	 *
-	 * External callers should use the getSection and replaceSection methods.
-	 *
-	 * @param string $text Page wikitext
-	 * @param string $section A section identifier string of the form:
-	 *    -  - ... - 
    
-	 *
-	 * Currently the only recognised flag is "T", which means the target section number
-	 * was derived during a template inclusion parse, in other words this is a template
-	 * section edit link. If no flags are given, it was an ordinary section edit link.
-	 * This flag is required to avoid a section numbering mismatch when a section is
-	 * enclosed by  (bug 6563).
-	 *
-	 * The section number 0 pulls the text before the first heading; other numbers will
-	 * pull the given section along with its lower-level subsections. If the section is
-	 * not found, $mode=get will return $newtext, and $mode=replace will return $text.
-	 *
-	 * @param string $mode One of "get" or "replace"
-	 * @param string $newText Replacement text for section data.
-	 * @return string for "get", the extracted section text.
-	 *                for "replace", the whole page with the section replaced.
-	 */
-	private function extractSections( $text, $section, $mode, $newText='' ) {
-		global $wgTitle;
-		$this->clearState();
-		$this->setTitle( $wgTitle ); // not generally used but removes an ugly failure mode
-		$this->mOptions = new ParserOptions;
-		$this->setOutputType( self::OT_WIKI );
-		$outText = '';
-		$frame = $this->getPreprocessor()->newFrame();
-
-		// Process section extraction flags
-		$flags = 0;
-		$sectionParts = explode( '-', $section );
-		$sectionIndex = array_pop( $sectionParts );
-		foreach ( $sectionParts as $part ) {
-			if ( $part == 'T' ) {
-				$flags |= self::PTD_FOR_INCLUSION;
-			}
-		}
-		// Preprocess the text
-		$root = $this->preprocessToDom( $text, $flags );
-
-		//  nodes indicate section breaks
-		// They can only occur at the top level, so we can find them by iterating the root's children
-		$node = $root->getFirstChild();
-
-		// Find the target section
-		if ( $sectionIndex == 0 ) {
-			// Section zero doesn't nest, level=big
-			$targetLevel = 1000;
-		} else {
-            while ( $node ) {
-                if ( $node->getName() == 'h' ) {
-                    $bits = $node->splitHeading();
-					if ( $bits['i'] == $sectionIndex ) {
-        				$targetLevel = $bits['level'];
-						break;
-					}
-				}
-				if ( $mode == 'replace' ) {
-					$outText .= $frame->expand( $node, PPFrame::RECOVER_ORIG );
-				}
-				$node = $node->getNextSibling();
-			}
-		}
-
-		if ( !$node ) {
-			// Not found
-			if ( $mode == 'get' ) {
-				return $newText;
-			} else {
-				return $text;
-			}
-		}
-
-		// Find the end of the section, including nested sections
-		do {
-			if ( $node->getName() == 'h' ) {
-				$bits = $node->splitHeading();
-				$curLevel = $bits['level'];
-				if ( $bits['i'] != $sectionIndex && $curLevel <= $targetLevel ) {
-					break;
-				}
-			}
-			if ( $mode == 'get' ) {
-				$outText .= $frame->expand( $node, PPFrame::RECOVER_ORIG );
-			}
-			$node = $node->getNextSibling();
-		} while ( $node );
-
-		// Write out the remainder (in replace mode only)
-		if ( $mode == 'replace' ) {
-			// Output the replacement text
-			// Add two newlines on -- trailing whitespace in $newText is conventionally
-			// stripped by the editor, so we need both newlines to restore the paragraph gap
-			$outText .= $newText . "\n\n";
-			while ( $node ) {
-				$outText .= $frame->expand( $node, PPFrame::RECOVER_ORIG );
-				$node = $node->getNextSibling();
-			}
-		}
-
-		if ( is_string( $outText ) ) {
-			// Re-insert stripped tags
-			$outText = rtrim( $this->mStripState->unstripBoth( $outText ) );
-		}
-
-		return $outText;
-	}
-
-	/**
-	 * This function returns the text of a section, specified by a number ($section).
-	 * A section is text under a heading like == Heading == or \Heading\, or
-	 * the first section before any such heading (section 0).
-	 *
-	 * If a section contains subsections, these are also returned.
-	 *
-	 * @param string $text text to look in
-	 * @param string $section section identifier
-	 * @param string $deftext default to return if section is not found
-	 * @return string text of the requested section
-	 */
-	public function getSection( $text, $section, $deftext='' ) {
-		return $this->extractSections( $text, $section, "get", $deftext );
-	}
-
-	public function replaceSection( $oldtext, $section, $text ) {
-		return $this->extractSections( $oldtext, $section, "replace", $text );
-	}
-
-	/**
-	 * Get the timestamp associated with the current revision, adjusted for
-	 * the default server-local timestamp
-	 */
-	function getRevisionTimestamp() {
-		if ( is_null( $this->mRevisionTimestamp ) ) {
-			wfProfileIn( __METHOD__ );
-			global $wgContLang;
-			$dbr = wfGetDB( DB_SLAVE );
-			$timestamp = $dbr->selectField( 'revision', 'rev_timestamp',
-					array( 'rev_id' => $this->mRevisionId ), __METHOD__ );
-
-			// Normalize timestamp to internal MW format for timezone processing.
-			// This has the added side-effect of replacing a null value with
-			// the current time, which gives us more sensible behavior for
-			// previews.
-			$timestamp = wfTimestamp( TS_MW, $timestamp );
-
-			// The cryptic '' timezone parameter tells to use the site-default
-			// timezone offset instead of the user settings.
-			//
-			// Since this value will be saved into the parser cache, served
-			// to other users, and potentially even used inside links and such,
-			// it needs to be consistent for all visitors.
-			$this->mRevisionTimestamp = $wgContLang->userAdjust( $timestamp, '' );
-
-			wfProfileOut( __METHOD__ );
-		}
-		return $this->mRevisionTimestamp;
-	}
-
-	/**
-	 * Mutator for $mDefaultSort
-	 *
-	 * @param $sort New value
-	 */
-	public function setDefaultSort( $sort ) {
-		$this->mDefaultSort = $sort;
-	}
-
-	/**
-	 * Accessor for $mDefaultSort
-	 * Will use the title/prefixed title if none is set
-	 *
-	 * @return string
-	 */
-	public function getDefaultSort() {
-		if( $this->mDefaultSort !== false ) {
-			return $this->mDefaultSort;
-		} else {
-			return $this->mTitle->getNamespace() == NS_CATEGORY
-					? $this->mTitle->getText()
-					: $this->mTitle->getPrefixedText();
-		}
-	}
-
-	/**
-	 * Try to guess the section anchor name based on a wikitext fragment
-	 * presumably extracted from a heading, for example "Header" from
-	 * "== Header ==".
-	 */
-	public function guessSectionNameFromWikiText( $text ) {
-		# Strip out wikitext links(they break the anchor)
-		$text = $this->stripSectionName( $text );
-		$headline = Sanitizer::decodeCharReferences( $text );
-		# strip out HTML
-		$headline = StringUtils::delimiterReplace( '<', '>', '', $headline );
-		$headline = trim( $headline );
-		$sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
-		$replacearray = array(
-			'%3A' => ':',
-			'%' => '.'
-		);
-		return str_replace(
-			array_keys( $replacearray ),
-			array_values( $replacearray ),
-			$sectionanchor );
-	}
-
-	/**
-	 * Strips a text string of wikitext for use in a section anchor
-	 *
-	 * Accepts a text string and then removes all wikitext from the
-	 * string and leaves only the resultant text (i.e. the result of
-	 * [[User:WikiSysop|Sysop]] would be "Sysop" and the result of
-	 * [[User:WikiSysop]] would be "User:WikiSysop") - this is intended
-	 * to create valid section anchors by mimicing the output of the
-	 * parser when headings are parsed.
-	 *
-	 * @param $text string Text string to be stripped of wikitext
-	 * for use in a Section anchor
-	 * @return Filtered text string
-	 */
-	public function stripSectionName( $text ) {
-		# Strip internal link markup
-		$text = preg_replace('/\[\[:?([^[|]+)\|([^[]+)\]\]/','$2',$text);
-		$text = preg_replace('/\[\[:?([^[]+)\|?\]\]/','$1',$text);
-
-		# Strip external link markup (FIXME: Not Tolerant to blank link text
-		# I.E. [http://www.mediawiki.org] will render as [1] or something depending
-		# on how many empty links there are on the page - need to figure that out.
-		$text = preg_replace('/\[(?:' . wfUrlProtocols() . ')([^ ]+?) ([^[]+)\]/','$2',$text);
-
-		# Parse wikitext quotes (italics & bold)
-		$text = $this->doQuotes($text);
-
-		# Strip HTML tags
-		$text = StringUtils::delimiterReplace( '<', '>', '', $text );
-		return $text;
-	}
-
-	function srvus( $text ) {
-		return $this->testSrvus( $text, $this->mOutputType );
-	}
-
-	/**
-	 * strip/replaceVariables/unstrip for preprocessor regression testing
-	 */
-	function testSrvus( $text, $title, $options, $outputType = self::OT_HTML ) {
-		$this->clearState();
-		if ( ! ( $title instanceof Title ) ) {
-			$title = Title::newFromText( $title );
-		}
-		$this->mTitle = $title;
-		$this->mOptions = $options;
-		$this->setOutputType( $outputType );
-		$text = $this->replaceVariables( $text );
-		$text = $this->mStripState->unstripBoth( $text );
-		$text = Sanitizer::removeHTMLtags( $text );
-		return $text;
-	}
-
-	function testPst( $text, $title, $options ) {
-		global $wgUser;
-		if ( ! ( $title instanceof Title ) ) {
-			$title = Title::newFromText( $title );
-		}
-		return $this->preSaveTransform( $text, $title, $wgUser, $options );
-	}
-
-	function testPreprocess( $text, $title, $options ) {
-		if ( ! ( $title instanceof Title ) ) {
-			$title = Title::newFromText( $title );
-		}
-		return $this->testSrvus( $text, $title, $options, self::OT_PREPROCESS );
-	}
-
-	function markerSkipCallback( $s, $callback ) {
-		$i = 0;
-		$out = '';
-		while ( $i < strlen( $s ) ) {
-			$markerStart = strpos( $s, $this->mUniqPrefix, $i );
-			if ( $markerStart === false ) {
-				$out .= call_user_func( $callback, substr( $s, $i ) );
-				break;
-			} else {
-				$out .= call_user_func( $callback, substr( $s, $i, $markerStart - $i ) );
-				$markerEnd = strpos( $s, self::MARKER_SUFFIX, $markerStart );
-				if ( $markerEnd === false ) {
-					$out .= substr( $s, $markerStart );
-					break;
-				} else {
-					$markerEnd += strlen( self::MARKER_SUFFIX );
-					$out .= substr( $s, $markerStart, $markerEnd - $markerStart );
-					$i = $markerEnd;
-				}
-			}
-		}
-		return $out;
-	}
-}
-
-/**
- * @todo document, briefly.
- * @ingroup Parser
- */
-class StripState {
-	var $general, $nowiki;
-
-	function __construct() {
-		$this->general = new ReplacementArray;
-		$this->nowiki = new ReplacementArray;
-	}
-
-	function unstripGeneral( $text ) {
-		wfProfileIn( __METHOD__ );
-		do {
-			$oldText = $text;
-			$text = $this->general->replace( $text );
-		} while ( $text != $oldText );
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-
-	function unstripNoWiki( $text ) {
-		wfProfileIn( __METHOD__ );
-		do {
-			$oldText = $text;
-			$text = $this->nowiki->replace( $text );
-		} while ( $text != $oldText );
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-
-	function unstripBoth( $text ) {
-		wfProfileIn( __METHOD__ );
-		do {
-			$oldText = $text;
-			$text = $this->general->replace( $text );
-			$text = $this->nowiki->replace( $text );
-		} while ( $text != $oldText );
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-}
-
-/**
- * @todo document, briefly.
- * @ingroup Parser
- */
-class OnlyIncludeReplacer {
-	var $output = '';
-
-	function replace( $matches ) {
-		if ( substr( $matches[1], -1 ) == "\n" ) {
-			$this->output .= substr( $matches[1], 0, -1 );
-		} else {
-			$this->output .= $matches[1];
-		}
-	}
-}
diff --git a/includes/ParserCache.php b/includes/ParserCache.php
deleted file mode 100644
index bf11da2eeb..0000000000
--- a/includes/ParserCache.php
+++ /dev/null
@@ -1,116 +0,0 @@
-mMemc =& $memCached;
-	}
-
-	function getKey( &$article, &$user ) {
-		global $action;
-		$hash = $user->getPageRenderingHash();
-		if( !$article->mTitle->quickUserCan( 'edit' ) ) {
-			// section edit links are suppressed even if the user has them on
-			$edit = '!edit=0';
-		} else {
-			$edit = '';
-		}
-		$pageid = intval( $article->getID() );
-		$renderkey = (int)($action == 'render');
-		$key = wfMemcKey( 'pcache', 'idhash', "$pageid-$renderkey!$hash$edit" );
-		return $key;
-	}
-
-	function getETag( &$article, &$user ) {
-		return 'W/"' . $this->getKey($article, $user) . "--" . $article->mTouched. '"';
-	}
-
-	function get( &$article, &$user ) {
-		global $wgCacheEpoch;
-		$fname = 'ParserCache::get';
-		wfProfileIn( $fname );
-
-		$key = $this->getKey( $article, $user );
-
-		wfDebug( "Trying parser cache $key\n" );
-		$value = $this->mMemc->get( $key );
-		if ( is_object( $value ) ) {
-			wfDebug( "Found.\n" );
-			# Delete if article has changed since the cache was made
-			$canCache = $article->checkTouched();
-			$cacheTime = $value->getCacheTime();
-			$touched = $article->mTouched;
-			if ( !$canCache || $value->expired( $touched ) ) {
-				if ( !$canCache ) {
-					wfIncrStats( "pcache_miss_invalid" );
-					wfDebug( "Invalid cached redirect, touched $touched, epoch $wgCacheEpoch, cached $cacheTime\n" );
-				} else {
-					wfIncrStats( "pcache_miss_expired" );
-					wfDebug( "Key expired, touched $touched, epoch $wgCacheEpoch, cached $cacheTime\n" );
-				}
-				$this->mMemc->delete( $key );
-				$value = false;
-			} else {
-				if ( isset( $value->mTimestamp ) ) {
-					$article->mTimestamp = $value->mTimestamp;
-				}
-				wfIncrStats( "pcache_hit" );
-			}
-		} else {
-			wfDebug( "Parser cache miss.\n" );
-			wfIncrStats( "pcache_miss_absent" );
-			$value = false;
-		}
-
-		wfProfileOut( $fname );
-		return $value;
-	}
-
-	function save( $parserOutput, &$article, &$user ){
-		global $wgParserCacheExpireTime;
-		$key = $this->getKey( $article, $user );
-
-		if( $parserOutput->getCacheTime() != -1 ) {
-
-			$now = wfTimestampNow();
-			$parserOutput->setCacheTime( $now );
-
-			// Save the timestamp so that we don't have to load the revision row on view
-			$parserOutput->mTimestamp = $article->getTimestamp();
-
-			$parserOutput->mText .= "\n\n";
-			wfDebug( "Saved in parser cache with key $key and timestamp $now\n" );
-
-			if( $parserOutput->containsOldMagic() ){
-				$expire = 3600; # 1 hour
-			} else {
-				$expire = $wgParserCacheExpireTime;
-			}
-			$this->mMemc->set( $key, $parserOutput, $expire );
-
-		} else {
-			wfDebug( "Parser output was marked as uncacheable and has not been saved.\n" );
-		}
-	}
-
-}
diff --git a/includes/ParserOptions.php b/includes/ParserOptions.php
deleted file mode 100644
index 330ec446cb..0000000000
--- a/includes/ParserOptions.php
+++ /dev/null
@@ -1,149 +0,0 @@
- tags
-	var $mUseDynamicDates;           # Use DateFormatter to format dates
-	var $mInterwikiMagic;            # Interlanguage links are removed and returned in an array
-	var $mAllowExternalImages;       # Allow external images inline
-	var $mAllowExternalImagesFrom;   # If not, any exception?
-	var $mSkin;                      # Reference to the preferred skin
-	var $mDateFormat;                # Date format index
-	var $mEditSection;               # Create "edit section" links
-	var $mNumberHeadings;            # Automatically number headings
-	var $mAllowSpecialInclusion;     # Allow inclusion of special pages
-	var $mTidy;                      # Ask for tidy cleanup
-	var $mInterfaceMessage;          # Which lang to call for PLURAL and GRAMMAR
-	var $mTargetLanguage;            # Overrides above setting with arbitrary language
-	var $mMaxIncludeSize;            # Maximum size of template expansions, in bytes
-	var $mMaxPPNodeCount;            # Maximum number of nodes touched by PPFrame::expand()
-	var $mMaxPPExpandDepth;          # Maximum recursion depth in PPFrame::expand()
-	var $mMaxTemplateDepth;          # Maximum recursion depth for templates within templates
-	var $mRemoveComments;            # Remove HTML comments. ONLY APPLIES TO PREPROCESS OPERATIONS
-	var $mTemplateCallback;          # Callback for template fetching
-	var $mEnableLimitReport;         # Enable limit report in an HTML comment on output
-	var $mTimestamp;                 # Timestamp used for {{CURRENTDAY}} etc.
-
-	var $mUser;                      # Stored user object, just used to initialise the skin
-
-	function getUseTeX()                        { return $this->mUseTeX; }
-	function getUseDynamicDates()               { return $this->mUseDynamicDates; }
-	function getInterwikiMagic()                { return $this->mInterwikiMagic; }
-	function getAllowExternalImages()           { return $this->mAllowExternalImages; }
-	function getAllowExternalImagesFrom()       { return $this->mAllowExternalImagesFrom; }
-	function getEditSection()                   { return $this->mEditSection; }
-	function getNumberHeadings()                { return $this->mNumberHeadings; }
-	function getAllowSpecialInclusion()         { return $this->mAllowSpecialInclusion; }
-	function getTidy()                          { return $this->mTidy; }
-	function getInterfaceMessage()              { return $this->mInterfaceMessage; }
-	function getTargetLanguage()                { return $this->mTargetLanguage; }
-	function getMaxIncludeSize()                { return $this->mMaxIncludeSize; }
-	function getMaxPPNodeCount()                { return $this->mMaxPPNodeCount; }
-	function getMaxTemplateDepth()              { return $this->mMaxTemplateDepth; }
-	function getRemoveComments()                { return $this->mRemoveComments; }
-	function getTemplateCallback()              { return $this->mTemplateCallback; }
-	function getEnableLimitReport()             { return $this->mEnableLimitReport; }
-
-	function getSkin() {
-		if ( !isset( $this->mSkin ) ) {
-			$this->mSkin = $this->mUser->getSkin();
-		}
-		return $this->mSkin;
-	}
-
-	function getDateFormat() {
-		if ( !isset( $this->mDateFormat ) ) {
-			$this->mDateFormat = $this->mUser->getDatePreference();
-		}
-		return $this->mDateFormat;
-	}
-
-	function getTimestamp() {
-		if ( !isset( $this->mTimestamp ) ) {
-			$this->mTimestamp = wfTimestampNow();
-		}
-		return $this->mTimestamp;
-	}
-
-	function setUseTeX( $x )                    { return wfSetVar( $this->mUseTeX, $x ); }
-	function setUseDynamicDates( $x )           { return wfSetVar( $this->mUseDynamicDates, $x ); }
-	function setInterwikiMagic( $x )            { return wfSetVar( $this->mInterwikiMagic, $x ); }
-	function setAllowExternalImages( $x )       { return wfSetVar( $this->mAllowExternalImages, $x ); }
-	function setAllowExternalImagesFrom( $x )   { return wfSetVar( $this->mAllowExternalImagesFrom, $x ); }
-	function setDateFormat( $x )                { return wfSetVar( $this->mDateFormat, $x ); }
-	function setEditSection( $x )               { return wfSetVar( $this->mEditSection, $x ); }
-	function setNumberHeadings( $x )            { return wfSetVar( $this->mNumberHeadings, $x ); }
-	function setAllowSpecialInclusion( $x )     { return wfSetVar( $this->mAllowSpecialInclusion, $x ); }
-	function setTidy( $x )                      { return wfSetVar( $this->mTidy, $x); }
-	function setSkin( $x )                      { $this->mSkin = $x; }
-	function setInterfaceMessage( $x )          { return wfSetVar( $this->mInterfaceMessage, $x); }
-	function setTargetLanguage( $x )            { return wfSetVar( $this->mTargetLanguage, $x); }
-	function setMaxIncludeSize( $x )            { return wfSetVar( $this->mMaxIncludeSize, $x ); }
-	function setMaxPPNodeCount( $x )            { return wfSetVar( $this->mMaxPPNodeCount, $x ); }
-	function setMaxTemplateDepth( $x )          { return wfSetVar( $this->mMaxTemplateDepth, $x ); }
-	function setRemoveComments( $x )            { return wfSetVar( $this->mRemoveComments, $x ); }
-	function setTemplateCallback( $x )          { return wfSetVar( $this->mTemplateCallback, $x ); }
-	function enableLimitReport( $x = true )     { return wfSetVar( $this->mEnableLimitReport, $x ); }
-	function setTimestamp( $x )                 { return wfSetVar( $this->mTimestamp, $x ); }
-
-	function __construct( $user = null ) {
-		$this->initialiseFromUser( $user );
-	}
-
-	/**
-	 * Get parser options
-	 * @static
-	 */
-	static function newFromUser( $user ) {
-		return new ParserOptions( $user );
-	}
-
-	/** Get user options */
-	function initialiseFromUser( $userInput ) {
-		global $wgUseTeX, $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
-		global $wgAllowExternalImagesFrom, $wgAllowSpecialInclusion, $wgMaxArticleSize;
-		global $wgMaxPPNodeCount, $wgMaxTemplateDepth, $wgMaxPPExpandDepth;
-		$fname = 'ParserOptions::initialiseFromUser';
-		wfProfileIn( $fname );
-		if ( !$userInput ) {
-			global $wgUser;
-			if ( isset( $wgUser ) ) {
-				$user = $wgUser;
-			} else {
-				$user = new User;
-			}
-		} else {
-			$user =& $userInput;
-		}
-
-		$this->mUser = $user;
-
-		$this->mUseTeX = $wgUseTeX;
-		$this->mUseDynamicDates = $wgUseDynamicDates;
-		$this->mInterwikiMagic = $wgInterwikiMagic;
-		$this->mAllowExternalImages = $wgAllowExternalImages;
-		$this->mAllowExternalImagesFrom = $wgAllowExternalImagesFrom;
-		$this->mSkin = null; # Deferred
-		$this->mDateFormat = null; # Deferred
-		$this->mEditSection = true;
-		$this->mNumberHeadings = $user->getOption( 'numberheadings' );
-		$this->mAllowSpecialInclusion = $wgAllowSpecialInclusion;
-		$this->mTidy = false;
-		$this->mInterfaceMessage = false;
-		$this->mTargetLanguage = null; // default depends on InterfaceMessage setting
-		$this->mMaxIncludeSize = $wgMaxArticleSize * 1024;
-		$this->mMaxPPNodeCount = $wgMaxPPNodeCount;
-		$this->mMaxPPExpandDepth = $wgMaxPPExpandDepth;
-		$this->mMaxTemplateDepth = $wgMaxTemplateDepth;
-		$this->mRemoveComments = true;
-		$this->mTemplateCallback = array( 'Parser', 'statelessFetchTemplate' );
-		$this->mEnableLimitReport = false;
-		wfProfileOut( $fname );
-	}
-}
diff --git a/includes/ParserOutput.php b/includes/ParserOutput.php
deleted file mode 100644
index f98d56418d..0000000000
--- a/includes/ParserOutput.php
+++ /dev/null
@@ -1,206 +0,0 @@
- section
-		$mOutputHooks,      # Hook tags as per $wgParserOutputHooks
-		$mWarnings,         # Warning text to be returned to the user. Wikitext formatted, in the key only
-		$mSections,         # Table of contents
-		$mProperties;       # Name/value pairs to be cached in the DB
-
-	/**
-	 * Overridden title for display
-	 */
-	private $displayTitle = false;
-
-	function ParserOutput( $text = '', $languageLinks = array(), $categoryLinks = array(),
-		$containsOldMagic = false, $titletext = '' )
-	{
-		$this->mText = $text;
-		$this->mLanguageLinks = $languageLinks;
-		$this->mCategories = $categoryLinks;
-		$this->mContainsOldMagic = $containsOldMagic;
-		$this->mCacheTime = '';
-		$this->mVersion = Parser::VERSION;
-		$this->mTitleText = $titletext;
-		$this->mSections = array();
-		$this->mLinks = array();
-		$this->mTemplates = array();
-		$this->mImages = array();
-		$this->mExternalLinks = array();
-		$this->mNewSection = false;
-		$this->mNoGallery = false;
-		$this->mHeadItems = array();
-		$this->mTemplateIds = array();
-		$this->mOutputHooks = array();
-		$this->mWarnings = array();
-		$this->mProperties = array();
-	}
-
-	function getText()                   { return $this->mText; }
-	function &getLanguageLinks()         { return $this->mLanguageLinks; }
-	function getCategoryLinks()          { return array_keys( $this->mCategories ); }
-	function &getCategories()            { return $this->mCategories; }
-	function getCacheTime()              { return $this->mCacheTime; }
-	function getTitleText()              { return $this->mTitleText; }
-	function getSections()               { return $this->mSections; }
-	function &getLinks()                 { return $this->mLinks; }
-	function &getTemplates()             { return $this->mTemplates; }
-	function &getImages()                { return $this->mImages; }
-	function &getExternalLinks()         { return $this->mExternalLinks; }
-	function getNoGallery()              { return $this->mNoGallery; }
-	function getSubtitle()               { return $this->mSubtitle; }
-	function getOutputHooks()            { return (array)$this->mOutputHooks; }
-	function getWarnings()               { return array_keys( $this->mWarnings ); }
-
-	function containsOldMagic()          { return $this->mContainsOldMagic; }
-	function setText( $text )            { return wfSetVar( $this->mText, $text ); }
-	function setLanguageLinks( $ll )     { return wfSetVar( $this->mLanguageLinks, $ll ); }
-	function setCategoryLinks( $cl )     { return wfSetVar( $this->mCategories, $cl ); }
-	function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
-	function setCacheTime( $t )          { return wfSetVar( $this->mCacheTime, $t ); }
-	function setTitleText( $t )          { return wfSetVar( $this->mTitleText, $t ); }
-	function setSections( $toc )         { return wfSetVar( $this->mSections, $toc ); }
-
-	function addCategory( $c, $sort )    { $this->mCategories[$c] = $sort; }
-	function addLanguageLink( $t )       { $this->mLanguageLinks[] = $t; }
-	function addExternalLink( $url )     { $this->mExternalLinks[$url] = 1; }
-	function addWarning( $s )            { $this->mWarnings[$s] = 1; }
-
-	function addOutputHook( $hook, $data = false ) {
-		$this->mOutputHooks[] = array( $hook, $data );
-	}
-
-	function setNewSection( $value ) {
-		$this->mNewSection = (bool)$value;
-	}
-	function getNewSection() {
-		return (bool)$this->mNewSection;
-	}
-
-	function addLink( $title, $id = null ) {
-		$ns = $title->getNamespace();
-		$dbk = $title->getDBkey();
-		if ( !isset( $this->mLinks[$ns] ) ) {
-			$this->mLinks[$ns] = array();
-		}
-		if ( is_null( $id ) ) {
-			$id = $title->getArticleID();
-		}
-		$this->mLinks[$ns][$dbk] = $id;
-	}
-
-	function addImage( $name ) {
-		$this->mImages[$name] = 1;
-	}
-
-	function addTemplate( $title, $page_id, $rev_id ) {
-		$ns = $title->getNamespace();
-		$dbk = $title->getDBkey();
-		if ( !isset( $this->mTemplates[$ns] ) ) {
-			$this->mTemplates[$ns] = array();
-		}
-		$this->mTemplates[$ns][$dbk] = $page_id;
-		if ( !isset( $this->mTemplateIds[$ns] ) ) {
-			$this->mTemplateIds[$ns] = array();
-		}
-		$this->mTemplateIds[$ns][$dbk] = $rev_id; // For versioning
-	}
-
-	/**
-	 * Return true if this cached output object predates the global or
-	 * per-article cache invalidation timestamps, or if it comes from
-	 * an incompatible older version.
-	 *
-	 * @param string $touched the affected article's last touched timestamp
-	 * @return bool
-	 * @public
-	 */
-	function expired( $touched ) {
-		global $wgCacheEpoch;
-		return $this->getCacheTime() == -1 || // parser says it's uncacheable
-		       $this->getCacheTime() < $touched ||
-		       $this->getCacheTime() <= $wgCacheEpoch ||
-		       !isset( $this->mVersion ) ||
-		       version_compare( $this->mVersion, Parser::VERSION, "lt" );
-	}
-
-	/**
-	 * Add some text to the .
-	 * If $tag is set, the section with that tag will only be included once
-	 * in a given page.
-	 */
-	function addHeadItem( $section, $tag = false ) {
-		if ( $tag !== false ) {
-			$this->mHeadItems[$tag] = $section;
-		} else {
-			$this->mHeadItems[] = $section;
-		}
-	}
-
-	/**
-	 * Override the title to be used for display
-	 * -- this is assumed to have been validated
-	 * (check equal normalisation, etc.)
-	 *
-	 * @param string $text Desired title text
-	 */
-	public function setDisplayTitle( $text ) {
-		$this->displayTitle = $text;
-	}
-
-	/**
-	 * Get the title to be used for display
-	 *
-	 * @return string
-	 */
-	public function getDisplayTitle() {
-		return $this->displayTitle;
-	}
-
-	/**
-	 * Fairly generic flag setter thingy.
-	 */
-	public function setFlag( $flag ) {
-		$this->mFlags[$flag] = true;
-	}
-
-	public function getFlag( $flag ) {
-		return isset( $this->mFlags[$flag] );
-	}
-
-	/**
-	 * Set a property to be cached in the DB
-	 */
-	public function setProperty( $name, $value ) {
-		$this->mProperties[$name] = $value;
-	}
-
-	public function getProperty( $name ){
-		return isset( $this->mProperties[$name] ) ? $this->mProperties[$name] : false;
-	}
-
-	public function getProperties() {
-		if ( !isset( $this->mProperties ) ) {
-			$this->mProperties = array();
-		}
-		return $this->mProperties;
-	}
-}
diff --git a/includes/Parser_DiffTest.php b/includes/Parser_DiffTest.php
deleted file mode 100644
index be3702cf82..0000000000
--- a/includes/Parser_DiffTest.php
+++ /dev/null
@@ -1,87 +0,0 @@
-conf = $conf;
-		$this->dtUniqPrefix = "\x7fUNIQ" . Parser::getRandomString();
-	}
-
-	function init() {
-		if ( !is_null( $this->parsers ) ) {
-			return;
-		}
-
-		global $wgHooks;
-		static $doneHook = false;
-		if ( !$doneHook ) {
-			$doneHook = true;
-			$wgHooks['ParserClearState'][] = array( $this, 'onClearState' );
-		}
-
-		foreach ( $this->conf['parsers'] as $i => $parserConf ) {
-			if ( !is_array( $parserConf ) ) {
-				$class = $parserConf;
-				$parserConf = array( 'class' => $parserConf );
-			} else {
-				$class = $parserConf['class'];
-			}
-			$this->parsers[$i] = new $class( $parserConf );
-		}
-	}
-
-	function __call( $name, $args ) {
-		$this->init();
-		$results = array();
-		$mismatch = false;
-		$lastResult = null;
-		$first = true;
-		foreach ( $this->parsers as $i => $parser ) {
-			$currentResult = call_user_func_array( array( &$this->parsers[$i], $name ), $args );
-			if ( $first ) {
-				$first = false;
-			} else {
-				if ( is_object( $lastResult ) ) {
-					if ( $lastResult != $currentResult ) {
-						$mismatch = true;
-					}
-				} else {
-					if ( $lastResult !== $currentResult ) {
-						$mismatch = true;
-					}
-				}
-			}
-			$results[$i] = $currentResult;
-			$lastResult = $currentResult;
-		}
-		if ( $mismatch ) {
-			throw new MWException( "Parser_DiffTest: results mismatch on call to $name\n" .
-				'Arguments: ' . var_export( $args, true ) . "\n" .
-				'Results: ' . var_export( $results, true ) . "\n" );
-		}
-		return $lastResult;
-	}
-
-	function setFunctionHook( $id, $callback, $flags = 0 ) {
-		$this->init();
-		foreach  ( $this->parsers as $i => $parser ) {
-			$parser->setFunctionHook( $id, $callback, $flags );
-		}
-	}
-
-	function onClearState( &$parser ) {
-		// hack marker prefixes to get identical output
-		$parser->mUniqPrefix = $this->dtUniqPrefix;
-		return true;
-	}
-}
diff --git a/includes/Parser_OldPP.php b/includes/Parser_OldPP.php
deleted file mode 100644
index 0d0394a5de..0000000000
--- a/includes/Parser_OldPP.php
+++ /dev/null
@@ -1,4944 +0,0 @@
-"\\x00-\\x20\\x7F]';
-	const EXT_IMAGE_REGEX = '/^(http:\/\/|https:\/\/)([^][<>"\\x00-\\x20\\x7F]+)\\/([A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]+)\\.((?i)gif|png|jpg|jpeg)$/S';
-
-	// State constants for the definition list colon extraction
-	const COLON_STATE_TEXT = 0;
-	const COLON_STATE_TAG = 1;
-	const COLON_STATE_TAGSTART = 2;
-	const COLON_STATE_CLOSETAG = 3;
-	const COLON_STATE_TAGSLASH = 4;
-	const COLON_STATE_COMMENT = 5;
-	const COLON_STATE_COMMENTDASH = 6;
-	const COLON_STATE_COMMENTDASHDASH = 7;
-
-	// Allowed values for $this->mOutputType
-	// Parameter to startExternalParse().
-	const OT_HTML = 1;
-	const OT_WIKI = 2;
-	const OT_PREPROCESS = 3;
-	const OT_MSG = 4;
-
-	/**#@+
-	 * @private
-	 */
-	# Persistent:
-	var $mTagHooks, $mTransparentTagHooks, $mFunctionHooks, $mFunctionSynonyms, $mVariables,
-		$mImageParams, $mImageParamsMagicArray, $mExtLinkBracketedRegex;
-
-	# Cleared with clearState():
-	var $mOutput, $mAutonumber, $mDTopen, $mStripState;
-	var $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
-	var $mInterwikiLinkHolders, $mLinkHolders, $mUniqPrefix;
-	var $mIncludeSizes, $mDefaultSort;
-	var $mTemplates,	// cache of already loaded templates, avoids
-		                // multiple SQL queries for the same string
-	    $mTemplatePath;	// stores an unsorted hash of all the templates already loaded
-		                // in this path. Used for loop detection.
-
-	# Temporary
-	# These are variables reset at least once per parse regardless of $clearState
-	var $mOptions,      // ParserOptions object
-		$mTitle,        // Title context, used for self-link rendering and similar things
-		$mOutputType,   // Output type, one of the OT_xxx constants
-		$ot,            // Shortcut alias, see setOutputType()
-		$mRevisionId,   // ID to display in {{REVISIONID}} tags
-		$mRevisionTimestamp, // The timestamp of the specified revision ID
-		$mRevIdForTs;   // The revision ID which was used to fetch the timestamp
-
-	/**#@-*/
-
-	/**
-	 * Constructor
-	 *
-	 * @public
-	 */
-	function __construct( $conf = array() ) {
-		$this->mTagHooks = array();
-		$this->mTransparentTagHooks = array();
-		$this->mFunctionHooks = array();
-		$this->mFunctionSynonyms = array( 0 => array(), 1 => array() );
-		$this->mFirstCall = true;
-		$this->mExtLinkBracketedRegex = '/\[(\b(' . wfUrlProtocols() . ')'.
-			'[^][<>"\\x00-\\x20\\x7F]+) *([^\]\\x0a\\x0d]*?)\]/S';
-	}
-
-	/**
-	 * Do various kinds of initialisation on the first call of the parser
-	 */
-	function firstCallInit() {
-		if ( !$this->mFirstCall ) {
-			return;
-		}
-		$this->mFirstCall = false;
-
-		wfProfileIn( __METHOD__ );
-		global $wgAllowDisplayTitle, $wgAllowSlowParserFunctions;
-
-		$this->setHook( 'pre', array( $this, 'renderPreTag' ) );
-
-		# Syntax for arguments (see self::setFunctionHook):
-		#  "name for lookup in localized magic words array",
-		#  function callback,
-		#  optional SFH_NO_HASH to omit the hash from calls (e.g. {{int:...}
-		#    instead of {{#int:...}})
-		$this->setFunctionHook( 'int',              array( 'CoreParserFunctions', 'intFunction'      ), SFH_NO_HASH );
-		$this->setFunctionHook( 'ns',               array( 'CoreParserFunctions', 'ns'               ), SFH_NO_HASH );
-		$this->setFunctionHook( 'urlencode',        array( 'CoreParserFunctions', 'urlencode'        ), SFH_NO_HASH );
-		$this->setFunctionHook( 'lcfirst',          array( 'CoreParserFunctions', 'lcfirst'          ), SFH_NO_HASH );
-		$this->setFunctionHook( 'ucfirst',          array( 'CoreParserFunctions', 'ucfirst'          ), SFH_NO_HASH );
-		$this->setFunctionHook( 'lc',               array( 'CoreParserFunctions', 'lc'               ), SFH_NO_HASH );
-		$this->setFunctionHook( 'uc',               array( 'CoreParserFunctions', 'uc'               ), SFH_NO_HASH );
-		$this->setFunctionHook( 'localurl',         array( 'CoreParserFunctions', 'localurl'         ), SFH_NO_HASH );
-		$this->setFunctionHook( 'localurle',        array( 'CoreParserFunctions', 'localurle'        ), SFH_NO_HASH );
-		$this->setFunctionHook( 'fullurl',          array( 'CoreParserFunctions', 'fullurl'          ), SFH_NO_HASH );
-		$this->setFunctionHook( 'fullurle',         array( 'CoreParserFunctions', 'fullurle'         ), SFH_NO_HASH );
-		$this->setFunctionHook( 'formatnum',        array( 'CoreParserFunctions', 'formatnum'        ), SFH_NO_HASH );
-		$this->setFunctionHook( 'grammar',          array( 'CoreParserFunctions', 'grammar'          ), SFH_NO_HASH );
-		$this->setFunctionHook( 'plural',           array( 'CoreParserFunctions', 'plural'           ), SFH_NO_HASH );
-		$this->setFunctionHook( 'numberofpages',    array( 'CoreParserFunctions', 'numberofpages'    ), SFH_NO_HASH );
-		$this->setFunctionHook( 'numberofusers',    array( 'CoreParserFunctions', 'numberofusers'    ), SFH_NO_HASH );
-		$this->setFunctionHook( 'numberofarticles', array( 'CoreParserFunctions', 'numberofarticles' ), SFH_NO_HASH );
-		$this->setFunctionHook( 'numberoffiles',    array( 'CoreParserFunctions', 'numberoffiles'    ), SFH_NO_HASH );
-		$this->setFunctionHook( 'numberofadmins',   array( 'CoreParserFunctions', 'numberofadmins'   ), SFH_NO_HASH );
-		$this->setFunctionHook( 'numberofedits',    array( 'CoreParserFunctions', 'numberofedits'    ), SFH_NO_HASH );
-		$this->setFunctionHook( 'language',         array( 'CoreParserFunctions', 'language'         ), SFH_NO_HASH );
-		$this->setFunctionHook( 'padleft',          array( 'CoreParserFunctions', 'padleft'          ), SFH_NO_HASH );
-		$this->setFunctionHook( 'padright',         array( 'CoreParserFunctions', 'padright'         ), SFH_NO_HASH );
-		$this->setFunctionHook( 'anchorencode',     array( 'CoreParserFunctions', 'anchorencode'     ), SFH_NO_HASH );
-		$this->setFunctionHook( 'special',          array( 'CoreParserFunctions', 'special'          ) );
-		$this->setFunctionHook( 'defaultsort',      array( 'CoreParserFunctions', 'defaultsort'      ), SFH_NO_HASH );
-		$this->setFunctionHook( 'filepath',         array( 'CoreParserFunctions', 'filepath'         ), SFH_NO_HASH );
-
-		if ( $wgAllowDisplayTitle ) {
-			$this->setFunctionHook( 'displaytitle', array( 'CoreParserFunctions', 'displaytitle' ), SFH_NO_HASH );
-		}
-		if ( $wgAllowSlowParserFunctions ) {
-			$this->setFunctionHook( 'pagesinnamespace', array( 'CoreParserFunctions', 'pagesinnamespace' ), SFH_NO_HASH );
-		}
-
-		$this->initialiseVariables();
-
-		wfRunHooks( 'ParserFirstCallInit', array( &$this ) );
-		wfProfileOut( __METHOD__ );
-	}
-
-	/**
-	 * Clear Parser state
-	 *
-	 * @private
-	 */
-	function clearState() {
-		wfProfileIn( __METHOD__ );
-		if ( $this->mFirstCall ) {
-			$this->firstCallInit();
-		}
-		$this->mOutput = new ParserOutput;
-		$this->mAutonumber = 0;
-		$this->mLastSection = '';
-		$this->mDTopen = false;
-		$this->mIncludeCount = array();
-		$this->mStripState = new StripState;
-		$this->mArgStack = array();
-		$this->mInPre = false;
-		$this->mInterwikiLinkHolders = array(
-			'texts' => array(),
-			'titles' => array()
-		);
-		$this->mLinkHolders = array(
-			'namespaces' => array(),
-			'dbkeys' => array(),
-			'queries' => array(),
-			'texts' => array(),
-			'titles' => array()
-		);
-		$this->mRevisionTimestamp = $this->mRevisionId = null;
-
-		/**
-		 * Prefix for temporary replacement strings for the multipass parser.
-		 * \x07 should never appear in input as it's disallowed in XML.
-		 * Using it at the front also gives us a little extra robustness
-		 * since it shouldn't match when butted up against identifier-like
-		 * string constructs.
-		 */
-		$this->mUniqPrefix = "\x07UNIQ" . self::getRandomString();
-
-		# Clear these on every parse, bug 4549
- 		$this->mTemplates = array();
- 		$this->mTemplatePath = array();
-
-		$this->mShowToc = true;
-		$this->mForceTocPosition = false;
-		$this->mIncludeSizes = array(
-			'pre-expand' => 0,
-			'post-expand' => 0,
-			'arg' => 0
-		);
-		$this->mDefaultSort = false;
-
-		wfRunHooks( 'ParserClearState', array( &$this ) );
-		wfProfileOut( __METHOD__ );
-	}
-
-	function setOutputType( $ot ) {
-		$this->mOutputType = $ot;
-		// Shortcut alias
-		$this->ot = array(
-			'html' => $ot == self::OT_HTML,
-			'wiki' => $ot == self::OT_WIKI,
-			'msg' => $ot == self::OT_MSG,
-			'pre' => $ot == self::OT_PREPROCESS,
-		);
-	}
-
-	/**
-	 * Accessor for mUniqPrefix.
-	 *
-	 * @public
-	 */
-	function uniqPrefix() {
-		return $this->mUniqPrefix;
-	}
-
-	/**
-	 * Convert wikitext to HTML
-	 * Do not call this function recursively.
-	 *
-	 * @param string $text Text we want to parse
-	 * @param Title &$title A title object
-	 * @param array $options
-	 * @param boolean $linestart
-	 * @param boolean $clearState
-	 * @param int $revid number to pass in {{REVISIONID}}
-	 * @return ParserOutput a ParserOutput
-	 */
-	public function parse( $text, &$title, $options, $linestart = true, $clearState = true, $revid = null ) {
-		/**
-		 * First pass--just handle  sections, pass the rest off
-		 * to internalParse() which does all the real work.
-		 */
-
-		global $wgUseTidy, $wgAlwaysUseTidy, $wgContLang;
-		$fname = 'Parser::parse-' . wfGetCaller();
-		wfProfileIn( __METHOD__ );
-		wfProfileIn( $fname );
-
-		if ( $clearState ) {
-			$this->clearState();
-		}
-
-		$this->mOptions = $options;
-		$this->mTitle =& $title;
-		$oldRevisionId = $this->mRevisionId;
-		$oldRevisionTimestamp = $this->mRevisionTimestamp;
-		if( $revid !== null ) {
-			$this->mRevisionId = $revid;
-			$this->mRevisionTimestamp = null;
-		}
-		$this->setOutputType( self::OT_HTML );
-		wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) );
-		$text = $this->strip( $text, $this->mStripState );
-		wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) );
-		$text = $this->internalParse( $text );
-		$text = $this->mStripState->unstripGeneral( $text );
-
-		# Clean up special characters, only run once, next-to-last before doBlockLevels
-		$fixtags = array(
-			# french spaces, last one Guillemet-left
-			# only if there is something before the space
-			'/(.) (?=\\?|:|;|!|%|\\302\\273)/' => '\\1 \\2',
-			# french spaces, Guillemet-right
-			'/(\\302\\253) /' => '\\1 ',
-		);
-		$text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
-
-		# only once and last
-		$text = $this->doBlockLevels( $text, $linestart );
-
-		$this->replaceLinkHolders( $text );
-
-		# the position of the parserConvert() call should not be changed. it
-		# assumes that the links are all replaced and the only thing left
-		# is the  mark.
-		# Side-effects: this calls $this->mOutput->setTitleText()
-		$text = $wgContLang->parserConvert( $text, $this );
-
-		$text = $this->mStripState->unstripNoWiki( $text );
-
-		wfRunHooks( 'ParserBeforeTidy', array( &$this, &$text ) );
-
-//!JF Move to its own function
-
-		$uniq_prefix = $this->mUniqPrefix;
-                $matches = array();
-		$elements = array_keys( $this->mTransparentTagHooks );
-                $text = self::extractTagsAndParams( $elements, $text, $matches, $uniq_prefix );
-
-                foreach( $matches as $marker => $data ) {
-                        list( $element, $content, $params, $tag ) = $data;
-                        $tagName = strtolower( $element );
-                        if( isset( $this->mTransparentTagHooks[$tagName] ) ) {
-                                $output = call_user_func_array( $this->mTransparentTagHooks[$tagName],
-                                        array( $content, $params, $this ) );
-                        } else {
-				$output = $tag;
-			}
-			$this->mStripState->general->setPair( $marker, $output );
-		}
-		$text = $this->mStripState->unstripGeneral( $text );
-
-		$text = Sanitizer::normalizeCharReferences( $text );
-
-		if (($wgUseTidy and $this->mOptions->mTidy) or $wgAlwaysUseTidy) {
-			$text = self::tidy($text);
-		} else {
-			# attempt to sanitize at least some nesting problems
-			# (bug #2702 and quite a few others)
-			$tidyregs = array(
-				# ''Something [http://www.cool.com cool''] -->
-				# Somethingcool>
-				'/(<([bi])>)(<([bi])>)?([^<]*)(<\/?a[^<]*>)([^<]*)(<\/\\4>)?(<\/\\2>)/' =>
-				'\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9',
-				# fix up an anchor inside another anchor, only
-				# at least for a single single nested link (bug 3695)
-				'/(]+>)([^<]*)(]+>[^<]*)<\/a>(.*)<\/a>/' =>
-				'\\1\\2\\3\\1\\4',
-				# fix div inside inline elements- doBlockLevels won't wrap a line which
-				# contains a div, so fix it up here; replace
-				# div with escaped text
-				'/(<([aib]) [^>]+>)([^<]*)(]*)>)(.*)(<\/div>)([^<]*)(<\/\\2>)/' =>
-				'\\1\\3<div\\5>\\6</div>\\8\\9',
-				# remove empty italic or bold tag pairs, some
-				# introduced by rules above
-				'/<([bi])><\/\\1>/' => '',
-			);
-
-			$text = preg_replace(
-				array_keys( $tidyregs ),
-				array_values( $tidyregs ),
-				$text );
-		}
-
-		wfRunHooks( 'ParserAfterTidy', array( &$this, &$text ) );
-
-		# Information on include size limits, for the benefit of users who try to skirt them
-		if ( $this->mOptions->getEnableLimitReport() ) {
-			$max = $this->mOptions->getMaxIncludeSize();
-			$limitReport =
-				"Pre-expand include size: {$this->mIncludeSizes['pre-expand']}/$max bytes\n" .
-				"Post-expand include size: {$this->mIncludeSizes['post-expand']}/$max bytes\n" .
-				"Template argument size: {$this->mIncludeSizes['arg']}/$max bytes\n";
-			wfRunHooks( 'ParserLimitReport', array( $this, &$limitReport ) );
-			$text .= "\n";
-		}
-		$this->mOutput->setText( $text );
-		$this->mRevisionId = $oldRevisionId;
-		$this->mRevisionTimestamp = $oldRevisionTimestamp;
-		wfProfileOut( $fname );
-		wfProfileOut( __METHOD__ );
-
-		return $this->mOutput;
-	}
-
-	/**
-	 * Recursive parser entry point that can be called from an extension tag
-	 * hook.
-	 */
-	function recursiveTagParse( $text ) {
-		wfProfileIn( __METHOD__ );
-		wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) );
-		$text = $this->strip( $text, $this->mStripState );
-		wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) );
-		$text = $this->internalParse( $text );
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-
-	/**
-	 * Expand templates and variables in the text, producing valid, static wikitext.
-	 * Also removes comments.
-	 */
-	function preprocess( $text, $title, $options, $revid = null ) {
-		wfProfileIn( __METHOD__ );
-		$this->clearState();
-		$this->setOutputType( self::OT_PREPROCESS );
-		$this->mOptions = $options;
-		$this->mTitle = $title;
-		if( $revid !== null ) {
-			$this->mRevisionId = $revid;
-		}
-		wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) );
-		$text = $this->strip( $text, $this->mStripState );
-		wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) );
-		if ( $this->mOptions->getRemoveComments() ) {
-			$text = Sanitizer::removeHTMLcomments( $text );
-		}
-		$text = $this->replaceVariables( $text );
-		$text = $this->mStripState->unstripBoth( $text );
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-
-	/**
-	 * Get a random string
-	 *
-	 * @private
-	 * @static
-	 */
-	function getRandomString() {
-		return dechex(mt_rand(0, 0x7fffffff)) . dechex(mt_rand(0, 0x7fffffff));
-	}
-
-	function &getTitle() { return $this->mTitle; }
-	function getOptions() { return $this->mOptions; }
-	function getRevisionId() { return $this->mRevisionId; }
-
-	function getFunctionLang() {
-		global $wgLang, $wgContLang;
-		return $this->mOptions->getInterfaceMessage() ? $wgLang : $wgContLang;
-	}
-
-	/**
-	 * Replaces all occurrences of HTML-style comments and the given tags
-	 * in the text with a random marker and returns teh next text. The output
-	 * parameter $matches will be an associative array filled with data in
-	 * the form:
-	 *   'UNIQ-xxxxx' => array(
-	 *     'element',
-	 *     'tag content',
-	 *     array( 'param' => 'x' ),
-	 *     'tag content' ) )
-	 *
-	 * @param $elements list of element names. Comments are always extracted.
-	 * @param $text Source text string.
-	 * @param $uniq_prefix
-	 *
-	 * @public
-	 * @static
-	 */
-	function extractTagsAndParams($elements, $text, &$matches, $uniq_prefix = ''){
-		static $n = 1;
-		$stripped = '';
-		$matches = array();
-
-		$taglist = implode( '|', $elements );
-		$start = "/<($taglist)(\\s+[^>]*?|\\s*?)(\/?>)|<(!--)/i";
-
-		while ( '' != $text ) {
-			$p = preg_split( $start, $text, 2, PREG_SPLIT_DELIM_CAPTURE );
-			$stripped .= $p[0];
-			if( count( $p ) < 5 ) {
-				break;
-			}
-			if( count( $p ) > 5 ) {
-				// comment
-				$element    = $p[4];
-				$attributes = '';
-				$close      = '';
-				$inside     = $p[5];
-			} else {
-				// tag
-				$element    = $p[1];
-				$attributes = $p[2];
-				$close      = $p[3];
-				$inside     = $p[4];
-			}
-
-			$marker = "$uniq_prefix-$element-" . sprintf('%08X', $n++) . "-QINU\x07";
-			$stripped .= $marker;
-
-			if ( $close === '/>' ) {
-				// Empty element tag, 
-				$content = null;
-				$text = $inside;
-				$tail = null;
-			} else {
-				if( $element == '!--' ) {
-					$end = '/(-->)/';
-				} else {
-					$end = "/(<\\/$element\\s*>)/i";
-				}
-				$q = preg_split( $end, $inside, 2, PREG_SPLIT_DELIM_CAPTURE );
-				$content = $q[0];
-				if( count( $q ) < 3 ) {
-					# No end tag -- let it run out to the end of the text.
-					$tail = '';
-					$text = '';
-				} else {
-					$tail = $q[1];
-					$text = $q[2];
-				}
-			}
-
-			$matches[$marker] = array( $element,
-				$content,
-				Sanitizer::decodeTagAttributes( $attributes ),
-				"<$element$attributes$close$content$tail" );
-		}
-		return $stripped;
-	}
-
-	/**
-	 * Strips and renders nowiki, pre, math, hiero
-	 * If $render is set, performs necessary rendering operations on plugins
-	 * Returns the text, and fills an array with data needed in unstrip()
-	 *
-	 * @param StripState $state
-	 *
-	 * @param bool $stripcomments when set, HTML comments 
-	 *  will be stripped in addition to other tags. This is important
-	 *  for section editing, where these comments cause confusion when
-	 *  counting the sections in the wikisource
-	 *
-	 * @param array dontstrip contains tags which should not be stripped;
-	 *  used to prevent stipping of  when saving (fixes bug 2700)
-	 *
-	 * @private
-	 */
-	function strip( $text, $state, $stripcomments = false , $dontstrip = array () ) {
-		global $wgContLang;
-		wfProfileIn( __METHOD__ );
-		$render = ($this->mOutputType == self::OT_HTML);
-
-		$uniq_prefix = $this->mUniqPrefix;
-		$commentState = new ReplacementArray;
-		$nowikiItems = array();
-		$generalItems = array();
-
-		$elements = array_merge(
-			array( 'nowiki', 'gallery' ),
-			array_keys( $this->mTagHooks ) );
-		global $wgRawHtml;
-		if( $wgRawHtml ) {
-			$elements[] = 'html';
-		}
-		if( $this->mOptions->getUseTeX() ) {
-			$elements[] = 'math';
-		}
-
-		# Removing $dontstrip tags from $elements list (currently only 'gallery', fixing bug 2700)
-		foreach ( $elements AS $k => $v ) {
-			if ( !in_array ( $v , $dontstrip ) ) continue;
-			unset ( $elements[$k] );
-		}
-
-		$matches = array();
-		$text = self::extractTagsAndParams( $elements, $text, $matches, $uniq_prefix );
-
-		foreach( $matches as $marker => $data ) {
-			list( $element, $content, $params, $tag ) = $data;
-			if( $render ) {
-				$tagName = strtolower( $element );
-				wfProfileIn( __METHOD__."-render-$tagName" );
-				switch( $tagName ) {
-				case '!--':
-					// Comment
-					if( substr( $tag, -3 ) == '-->' ) {
-						$output = $tag;
-					} else {
-						// Unclosed comment in input.
-						// Close it so later stripping can remove it
-						$output = "$tag-->";
-					}
-					break;
-				case 'html':
-					if( $wgRawHtml ) {
-						$output = $content;
-						break;
-					}
-					// Shouldn't happen otherwise. :)
-				case 'nowiki':
-					$output = Xml::escapeTagsOnly( $content );
-					break;
-				case 'math':
-					$output = $wgContLang->armourMath(
-						MathRenderer::renderMath( $content, $params ) );
-					break;
-				case 'gallery':
-					$output = $this->renderImageGallery( $content, $params );
-					break;
-				default:
-					if( isset( $this->mTagHooks[$tagName] ) ) {
-						$output = call_user_func_array( $this->mTagHooks[$tagName],
-							array( $content, $params, $this ) );
-					} else {
-						throw new MWException( "Invalid call hook $element" );
-					}
-				}
-				wfProfileOut( __METHOD__."-render-$tagName" );
-			} else {
-				// Just stripping tags; keep the source
-				$output = $tag;
-			}
-
-			// Unstrip the output, to support recursive strip() calls
-			$output = $state->unstripBoth( $output );
-
-			if( !$stripcomments && $element == '!--' ) {
-				$commentState->setPair( $marker, $output );
-			} elseif ( $element == 'html' || $element == 'nowiki' ) {
-				$nowikiItems[$marker] = $output;
-			} else {
-				$generalItems[$marker] = $output;
-			}
-		}
-		# Add the new items to the state
-		# We do this after the loop instead of during it to avoid slowing
-		# down the recursive unstrip
-		$state->nowiki->mergeArray( $nowikiItems );
-		$state->general->mergeArray( $generalItems );
-
-		# Unstrip comments unless explicitly told otherwise.
-		# (The comments are always stripped prior to this point, so as to
-		# not invoke any extension tags / parser hooks contained within
-		# a comment.)
-		if ( !$stripcomments ) {
-			// Put them all back and forget them
-			$text = $commentState->replace( $text );
-		}
-
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-
-	/**
-	 * Restores pre, math, and other extensions removed by strip()
-	 *
-	 * always call unstripNoWiki() after this one
-	 * @private
-	 * @deprecated use $this->mStripState->unstrip()
-	 */
-	function unstrip( $text, $state ) {
-		return $state->unstripGeneral( $text );
-	}
-
-	/**
-	 * Always call this after unstrip() to preserve the order
-	 *
-	 * @private
-	 * @deprecated use $this->mStripState->unstrip()
-	 */
-	function unstripNoWiki( $text, $state ) {
-		return $state->unstripNoWiki( $text );
-	}
-
-	/**
-	 * @deprecated use $this->mStripState->unstripBoth()
-	 */
-	function unstripForHTML( $text ) {
-		return $this->mStripState->unstripBoth( $text );
-	}
-
-	/**
-	 * Add an item to the strip state
-	 * Returns the unique tag which must be inserted into the stripped text
-	 * The tag will be replaced with the original text in unstrip()
-	 *
-	 * @private
-	 */
-	function insertStripItem( $text, &$state ) {
-		$rnd = $this->mUniqPrefix . '-item' . self::getRandomString();
-		$state->general->setPair( $rnd, $text );
-		return $rnd;
-	}
-
-	/**
-	 * Interface with html tidy, used if $wgUseTidy = true.
-	 * If tidy isn't able to correct the markup, the original will be
-	 * returned in all its glory with a warning comment appended.
-	 *
-	 * Either the external tidy program or the in-process tidy extension
-	 * will be used depending on availability. Override the default
-	 * $wgTidyInternal setting to disable the internal if it's not working.
-	 *
-	 * @param string $text Hideous HTML input
-	 * @return string Corrected HTML output
-	 * @public
-	 * @static
-	 */
-	function tidy( $text ) {
-		global $wgTidyInternal;
-		$wrappedtext = ''.
-'test'.$text.'';
-		if( $wgTidyInternal ) {
-			$correctedtext = self::internalTidy( $wrappedtext );
-		} else {
-			$correctedtext = self::externalTidy( $wrappedtext );
-		}
-		if( is_null( $correctedtext ) ) {
-			wfDebug( "Tidy error detected!\n" );
-			return $text . "\n\n";
-		}
-		return $correctedtext;
-	}
-
-	/**
-	 * Spawn an external HTML tidy process and get corrected markup back from it.
-	 *
-	 * @private
-	 * @static
-	 */
-	function externalTidy( $text ) {
-		global $wgTidyConf, $wgTidyBin, $wgTidyOpts;
-		$fname = 'Parser::externalTidy';
-		wfProfileIn( $fname );
-
-		$cleansource = '';
-		$opts = ' -utf8';
-
-		$descriptorspec = array(
-			0 => array('pipe', 'r'),
-			1 => array('pipe', 'w'),
-			2 => array('file', wfGetNull(), 'a')
-		);
-		$pipes = array();
-		$process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes);
-		if (is_resource($process)) {
-			// Theoretically, this style of communication could cause a deadlock
-			// here. If the stdout buffer fills up, then writes to stdin could
-			// block. This doesn't appear to happen with tidy, because tidy only
-			// writes to stdout after it's finished reading from stdin. Search
-			// for tidyParseStdin and tidySaveStdout in console/tidy.c
-			fwrite($pipes[0], $text);
-			fclose($pipes[0]);
-			while (!feof($pipes[1])) {
-				$cleansource .= fgets($pipes[1], 1024);
-			}
-			fclose($pipes[1]);
-			proc_close($process);
-		}
-
-		wfProfileOut( $fname );
-
-		if( $cleansource == '' && $text != '') {
-			// Some kind of error happened, so we couldn't get the corrected text.
-			// Just give up; we'll use the source text and append a warning.
-			return null;
-		} else {
-			return $cleansource;
-		}
-	}
-
-	/**
-	 * Use the HTML tidy PECL extension to use the tidy library in-process,
-	 * saving the overhead of spawning a new process.
-	 *
-	 * 'pear install tidy' should be able to compile the extension module.
-	 *
-	 * @private
-	 * @static
-	 */
-	function internalTidy( $text ) {
-		global $wgTidyConf, $IP;
-		$fname = 'Parser::internalTidy';
-		wfProfileIn( $fname );
-
-		$tidy = new tidy;
-		$tidy->parseString( $text, $wgTidyConf, 'utf8' );
-		$tidy->cleanRepair();
-		if( $tidy->getStatus() == 2 ) {
-			// 2 is magic number for fatal error
-			// http://www.php.net/manual/en/function.tidy-get-status.php
-			$cleansource = null;
-		} else {
-			$cleansource = tidy_get_output( $tidy );
-		}
-		wfProfileOut( $fname );
-		return $cleansource;
-	}
-
-	/**
-	 * parse the wiki syntax used to render tables
-	 *
-	 * @private
-	 */
-	function doTableStuff ( $text ) {
-		$fname = 'Parser::doTableStuff';
-		wfProfileIn( $fname );
-
-		$lines = explode ( "\n" , $text );
-		$td_history = array (); // Is currently a td tag open?
-		$last_tag_history = array (); // Save history of last lag activated (td, th or caption)
-		$tr_history = array (); // Is currently a tr tag open?
-		$tr_attributes = array (); // history of tr attributes
-		$has_opened_tr = array(); // Did this table open a  element?
-		$indent_level = 0; // indent level of the table
-		foreach ( $lines as $key => $line )
-		{
-			$line = trim ( $line );
-
-			if( $line == '' ) { // empty line, go to next line
-				continue;
-			}
-			$first_character = $line{0};
-			$matches = array();
-
-			if ( preg_match( '/^(:*)\{\|(.*)$/' , $line , $matches ) ) {
-				// First check if we are starting a new table
-				$indent_level = strlen( $matches[1] );
-
-				$attributes = $this->mStripState->unstripBoth( $matches[2] );
-				$attributes = Sanitizer::fixTagAttributes ( $attributes , 'table' );
-
-				$lines[$key] = str_repeat( '
    ' , $indent_level ) . "";
-				array_push ( $td_history , false );
-				array_push ( $last_tag_history , '' );
-				array_push ( $tr_history , false );
-				array_push ( $tr_attributes , '' );
-				array_push ( $has_opened_tr , false );
-			} else if ( count ( $td_history ) == 0 ) {
-				// Don't do any of the following
-				continue;
-			} else if ( substr ( $line , 0 , 2 ) == '|}' ) {
-				// We are ending a table
-				$line = '' . substr ( $line , 2 );
-				$last_tag = array_pop ( $last_tag_history );
-
-				if ( !array_pop ( $has_opened_tr ) ) {
-					$line = "{$line}";
-				}
-
-				if ( array_pop ( $tr_history ) ) {
-					$line = "{$line}";
-				}
-
-				if ( array_pop ( $td_history ) ) {
-					$line = "{$line}";
-				}
-				array_pop ( $tr_attributes );
-				$lines[$key] = $line . str_repeat( '
    ' , $indent_level );
-			} else if ( substr ( $line , 0 , 2 ) == '|-' ) {
-				// Now we have a table row
-				$line = preg_replace( '#^\|-+#', '', $line );
-
-				// Whats after the tag is now only attributes
-				$attributes = $this->mStripState->unstripBoth( $line );
-				$attributes = Sanitizer::fixTagAttributes ( $attributes , 'tr' );
-				array_pop ( $tr_attributes );
-				array_push ( $tr_attributes , $attributes );
-
-				$line = '';
-				$last_tag = array_pop ( $last_tag_history );
-				array_pop ( $has_opened_tr );
-				array_push ( $has_opened_tr , true );
-
-				if ( array_pop ( $tr_history ) ) {
-					$line = '';
-				}
-
-				if ( array_pop ( $td_history ) ) {
-					$line = "{$line}";
-				}
-
-				$lines[$key] = $line;
-				array_push ( $tr_history , false );
-				array_push ( $td_history , false );
-				array_push ( $last_tag_history , '' );
-			}
-			else if ( $first_character == '|' || $first_character == '!' || substr ( $line , 0 , 2 )  == '|+' ) {
-				// This might be cell elements, td, th or captions
-				if ( substr ( $line , 0 , 2 ) == '|+' ) {
-					$first_character = '+';
-					$line = substr ( $line , 1 );
-				}
-
-				$line = substr ( $line , 1 );
-
-				if ( $first_character == '!' ) {
-					$line = str_replace ( '!!' , '||' , $line );
-				}
-
-				// Split up multiple cells on the same line.
-				// FIXME : This can result in improper nesting of tags processed
-				// by earlier parser steps, but should avoid splitting up eg
-				// attribute values containing literal "||".
-				$cells = StringUtils::explodeMarkup( '||' , $line );
-
-				$lines[$key] = '';
-
-				// Loop through each table cell
-				foreach ( $cells as $cell )
-				{
-					$previous = '';
-					if ( $first_character != '+' )
-					{
-						$tr_after = array_pop ( $tr_attributes );
-						if ( !array_pop ( $tr_history ) ) {
-							$previous = "\n";
-						}
-						array_push ( $tr_history , true );
-						array_push ( $tr_attributes , '' );
-						array_pop ( $has_opened_tr );
-						array_push ( $has_opened_tr , true );
-					}
-
-					$last_tag = array_pop ( $last_tag_history );
-
-					if ( array_pop ( $td_history ) ) {
-						$previous = "{$previous}";
-					}
-
-					if ( $first_character == '|' ) {
-						$last_tag = 'td';
-					} else if ( $first_character == '!' ) {
-						$last_tag = 'th';
-					} else if ( $first_character == '+' ) {
-						$last_tag = 'caption';
-					} else {
-						$last_tag = '';
-					}
-
-					array_push ( $last_tag_history , $last_tag );
-
-					// A cell could contain both parameters and data
-					$cell_data = explode ( '|' , $cell , 2 );
-
-					// Bug 553: Note that a '|' inside an invalid link should not
-					// be mistaken as delimiting cell parameters
-					if ( strpos( $cell_data[0], '[[' ) !== false ) {
-						$cell = "{$previous}<{$last_tag}>{$cell}";
-					} else if ( count ( $cell_data ) == 1 )
-						$cell = "{$previous}<{$last_tag}>{$cell_data[0]}";
-					else {
-						$attributes = $this->mStripState->unstripBoth( $cell_data[0] );
-						$attributes = Sanitizer::fixTagAttributes( $attributes , $last_tag );
-						$cell = "{$previous}<{$last_tag}{$attributes}>{$cell_data[1]}";
-					}
-
-					$lines[$key] .= $cell;
-					array_push ( $td_history , true );
-				}
-			}
-		}
-
-		// Closing open td, tr && table
-		while ( count ( $td_history ) > 0 )
-		{
-			if ( array_pop ( $td_history ) ) {
-				$lines[] = '' ;
-			}
-			if ( array_pop ( $tr_history ) ) {
-				$lines[] = '' ;
-			}
-			if ( !array_pop ( $has_opened_tr ) ) {
-				$lines[] = "" ;
-			}
-
-			$lines[] = '' ;
-		}
-
-		$output = implode ( "\n" , $lines ) ;
-
-		// special case: don't return empty table
-		if( $output == "\n\n
    " ) {
-			$output = '';
-		}
-
-		wfProfileOut( $fname );
-
-		return $output;
-	}
-
-	/**
-	 * Helper function for parse() that transforms wiki markup into
-	 * HTML. Only called for $mOutputType == OT_HTML.
-	 *
-	 * @private
-	 */
-	function internalParse( $text ) {
-		$args = array();
-		$isMain = true;
-		$fname = 'Parser::internalParse';
-		wfProfileIn( $fname );
-
-		# Hook to suspend the parser in this state
-		if ( !wfRunHooks( 'ParserBeforeInternalParse', array( &$this, &$text, &$this->mStripState ) ) ) {
-			wfProfileOut( $fname );
-			return $text ;
-		}
-
-		# Remove  tags and  sections
-		$text = strtr( $text, array( '' => '' , '' => '' ) );
-		$text = strtr( $text, array( '' => '', '' => '') );
-		$text = StringUtils::delimiterReplace( '', '', '', $text );
-
-		$text = Sanitizer::removeHTMLtags( $text, array( &$this, 'attributeStripCallback' ), array(), array_keys( $this->mTransparentTagHooks ) );
-
-		$text = $this->replaceVariables( $text, $args );
-		wfRunHooks( 'InternalParseBeforeLinks', array( &$this, &$text, &$this->mStripState ) );
-
-		// Tables need to come after variable replacement for things to work
-		// properly; putting them before other transformations should keep
-		// exciting things like link expansions from showing up in surprising
-		// places.
-		$text = $this->doTableStuff( $text );
-
-		$text = preg_replace( '/(^|\n)-----*/', '\\1
    ', $text );
-
-		$text = $this->stripToc( $text );
-		$this->stripNoGallery( $text );
-		$text = $this->doHeadings( $text );
-		if($this->mOptions->getUseDynamicDates()) {
-			$df =& DateFormatter::getInstance();
-			$text = $df->reformat( $this->mOptions->getDateFormat(), $text );
-		}
-		$text = $this->doAllQuotes( $text );
-		$text = $this->replaceInternalLinks( $text );
-		$text = $this->replaceExternalLinks( $text );
-
-		# replaceInternalLinks may sometimes leave behind
-		# absolute URLs, which have to be masked to hide them from replaceExternalLinks
-		$text = str_replace($this->mUniqPrefix."NOPARSE", "", $text);
-
-		$text = $this->doMagicLinks( $text );
-		$text = $this->formatHeadings( $text, $isMain );
-
-		wfProfileOut( $fname );
-		return $text;
-	}
-
-	/**
-	 * Replace special strings like "ISBN xxx" and "RFC xxx" with
-	 * magic external links.
-	 *
-	 * @private
-	 */
-	function &doMagicLinks( &$text ) {
-		wfProfileIn( __METHOD__ );
-		$text = preg_replace_callback(
-			'!(?:                           # Start cases
-			     |                 # Skip link text
-			    <.*?> |                     # Skip stuff inside HTML elements
-			    (?:RFC|PMID)\s+([0-9]+) |   # RFC or PMID, capture number as m[1]
-			    ISBN\s+(\b                  # ISBN, capture number as m[2]
-                                     (?: 97[89] [\ \-]? )?   # optional 13-digit ISBN prefix
-                                     (?: [0-9]  [\ \-]? ){9} # 9 digits with opt. delimiters
-                                     [0-9Xx]                 # check digit
-                                   \b)
-			)!x', array( &$this, 'magicLinkCallback' ), $text );
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-
-	function magicLinkCallback( $m ) {
-		if ( substr( $m[0], 0, 1 ) == '<' ) {
-			# Skip HTML element
-			return $m[0];
-		} elseif ( substr( $m[0], 0, 4 ) == 'ISBN' ) {
-			$isbn = $m[2];
-			$num = strtr( $isbn, array(
-				'-' => '',
-				' ' => '',
-				'x' => 'X',
-			));
-			$titleObj = SpecialPage::getTitleFor( 'Booksources' );
-			$text = 'ISBN $isbn";
-		} else {
-			if ( substr( $m[0], 0, 3 ) == 'RFC' ) {
-				$keyword = 'RFC';
-				$urlmsg = 'rfcurl';
-				$id = $m[1];
-			} elseif ( substr( $m[0], 0, 4 ) == 'PMID' ) {
-				$keyword = 'PMID';
-				$urlmsg = 'pubmedurl';
-				$id = $m[1];
-			} else {
-				throw new MWException( __METHOD__.': unrecognised match type "' .
-					substr($m[0], 0, 20 ) . '"' );
-			}
-
-			$url = wfMsg( $urlmsg, $id);
-			$sk = $this->mOptions->getSkin();
-			$la = $sk->getExternalLinkAttributes( $url, $keyword.$id );
-			$text = "{$keyword} {$id}";
-		}
-		return $text;
-	}
-
-	/**
-	 * Parse headers and return html
-	 *
-	 * @private
-	 */
-	function doHeadings( $text ) {
-		$fname = 'Parser::doHeadings';
-		wfProfileIn( $fname );
-		for ( $i = 6; $i >= 1; --$i ) {
-			$h = str_repeat( '=', $i );
-			$text = preg_replace( "/^{$h}(.+){$h}\\s*$/m",
-			  "\\1\\2", $text );
-		}
-		wfProfileOut( $fname );
-		return $text;
-	}
-
-	/**
-	 * Replace single quotes with HTML markup
-	 * @private
-	 * @return string the altered text
-	 */
-	function doAllQuotes( $text ) {
-		$fname = 'Parser::doAllQuotes';
-		wfProfileIn( $fname );
-		$outtext = '';
-		$lines = explode( "\n", $text );
-		foreach ( $lines as $line ) {
-			$outtext .= $this->doQuotes ( $line ) . "\n";
-		}
-		$outtext = substr($outtext, 0,-1);
-		wfProfileOut( $fname );
-		return $outtext;
-	}
-
-	/**
-	 * Helper function for doAllQuotes()
-	 */
-	public function doQuotes( $text ) {
-		$arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE );
-		if ( count( $arr ) == 1 )
-			return $text;
-		else
-		{
-			# First, do some preliminary work. This may shift some apostrophes from
-			# being mark-up to being text. It also counts the number of occurrences
-			# of bold and italics mark-ups.
-			$i = 0;
-			$numbold = 0;
-			$numitalics = 0;
-			foreach ( $arr as $r )
-			{
-				if ( ( $i % 2 ) == 1 )
-				{
-					# If there are ever four apostrophes, assume the first is supposed to
-					# be text, and the remaining three constitute mark-up for bold text.
-					if ( strlen( $arr[$i] ) == 4 )
-					{
-						$arr[$i-1] .= "'";
-						$arr[$i] = "'''";
-					}
-					# If there are more than 5 apostrophes in a row, assume they're all
-					# text except for the last 5.
-					else if ( strlen( $arr[$i] ) > 5 )
-					{
-						$arr[$i-1] .= str_repeat( "'", strlen( $arr[$i] ) - 5 );
-						$arr[$i] = "'''''";
-					}
-					# Count the number of occurrences of bold and italics mark-ups.
-					# We are not counting sequences of five apostrophes.
-					if ( strlen( $arr[$i] ) == 2 )      { $numitalics++;             }
-					else if ( strlen( $arr[$i] ) == 3 ) { $numbold++;                }
-					else if ( strlen( $arr[$i] ) == 5 ) { $numitalics++; $numbold++; }
-				}
-				$i++;
-			}
-
-			# If there is an odd number of both bold and italics, it is likely
-			# that one of the bold ones was meant to be an apostrophe followed
-			# by italics. Which one we cannot know for certain, but it is more
-			# likely to be one that has a single-letter word before it.
-			if ( ( $numbold % 2 == 1 ) && ( $numitalics % 2 == 1 ) )
-			{
-				$i = 0;
-				$firstsingleletterword = -1;
-				$firstmultiletterword = -1;
-				$firstspace = -1;
-				foreach ( $arr as $r )
-				{
-					if ( ( $i % 2 == 1 ) and ( strlen( $r ) == 3 ) )
-					{
-						$x1 = substr ($arr[$i-1], -1);
-						$x2 = substr ($arr[$i-1], -2, 1);
-						if ($x1 == ' ') {
-							if ($firstspace == -1) $firstspace = $i;
-						} else if ($x2 == ' ') {
-							if ($firstsingleletterword == -1) $firstsingleletterword = $i;
-						} else {
-							if ($firstmultiletterword == -1) $firstmultiletterword = $i;
-						}
-					}
-					$i++;
-				}
-
-				# If there is a single-letter word, use it!
-				if ($firstsingleletterword > -1)
-				{
-					$arr [ $firstsingleletterword ] = "''";
-					$arr [ $firstsingleletterword-1 ] .= "'";
-				}
-				# If not, but there's a multi-letter word, use that one.
-				else if ($firstmultiletterword > -1)
-				{
-					$arr [ $firstmultiletterword ] = "''";
-					$arr [ $firstmultiletterword-1 ] .= "'";
-				}
-				# ... otherwise use the first one that has neither.
-				# (notice that it is possible for all three to be -1 if, for example,
-				# there is only one pentuple-apostrophe in the line)
-				else if ($firstspace > -1)
-				{
-					$arr [ $firstspace ] = "''";
-					$arr [ $firstspace-1 ] .= "'";
-				}
-			}
-
-			# Now let's actually convert our apostrophic mush to HTML!
-			$output = '';
-			$buffer = '';
-			$state = '';
-			$i = 0;
-			foreach ($arr as $r)
-			{
-				if (($i % 2) == 0)
-				{
-					if ($state == 'both')
-						$buffer .= $r;
-					else
-						$output .= $r;
-				}
-				else
-				{
-					if (strlen ($r) == 2)
-					{
-						if ($state == 'i')
-						{ $output .= ''; $state = ''; }
-						else if ($state == 'bi')
-						{ $output .= ''; $state = 'b'; }
-						else if ($state == 'ib')
-						{ $output .= ''; $state = 'b'; }
-						else if ($state == 'both')
-						{ $output .= ''.$buffer.''; $state = 'b'; }
-						else # $state can be 'b' or ''
-						{ $output .= ''; $state .= 'i'; }
-					}
-					else if (strlen ($r) == 3)
-					{
-						if ($state == 'b')
-						{ $output .= ''; $state = ''; }
-						else if ($state == 'bi')
-						{ $output .= ''; $state = 'i'; }
-						else if ($state == 'ib')
-						{ $output .= ''; $state = 'i'; }
-						else if ($state == 'both')
-						{ $output .= ''.$buffer.''; $state = 'i'; }
-						else # $state can be 'i' or ''
-						{ $output .= ''; $state .= 'b'; }
-					}
-					else if (strlen ($r) == 5)
-					{
-						if ($state == 'b')
-						{ $output .= ''; $state = 'i'; }
-						else if ($state == 'i')
-						{ $output .= ''; $state = 'b'; }
-						else if ($state == 'bi')
-						{ $output .= ''; $state = ''; }
-						else if ($state == 'ib')
-						{ $output .= ''; $state = ''; }
-						else if ($state == 'both')
-						{ $output .= ''.$buffer.''; $state = ''; }
-						else # ($state == '')
-						{ $buffer = ''; $state = 'both'; }
-					}
-				}
-				$i++;
-			}
-			# Now close all remaining tags.  Notice that the order is important.
-			if ($state == 'b' || $state == 'ib')
-				$output .= '';
-			if ($state == 'i' || $state == 'bi' || $state == 'ib')
-				$output .= '';
-			if ($state == 'bi')
-				$output .= '';
-			# There might be lonely ''''', so make sure we have a buffer
-			if ($state == 'both' && $buffer)
-				$output .= ''.$buffer.'';
-			return $output;
-		}
-	}
-
-	/**
-	 * Replace external links
-	 *
- 	 * Note: this is all very hackish and the order of execution matters a lot.
-	 * Make sure to run maintenance/parserTests.php if you change this code.
-	 *
-	 * @private
-	 */
-	function replaceExternalLinks( $text ) {
-		global $wgContLang;
-		$fname = 'Parser::replaceExternalLinks';
-		wfProfileIn( $fname );
-
-		$sk = $this->mOptions->getSkin();
-
-		$bits = preg_split( $this->mExtLinkBracketedRegex, $text, -1, PREG_SPLIT_DELIM_CAPTURE );
-
-		$s = $this->replaceFreeExternalLinks( array_shift( $bits ) );
-
-		$i = 0;
-		while ( $i' (which were escaped by
-			# removeHTMLtags()) should not be included in
-			# URLs, per RFC 2396.
-			$m2 = array();
-			if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) {
-				$text = substr($url, $m2[0][1]) . ' ' . $text;
-				$url = substr($url, 0, $m2[0][1]);
-			}
-
-			# If the link text is an image URL, replace it with an  tag
-			# This happened by accident in the original parser, but some people used it extensively
-			$img = $this->maybeMakeExternalImage( $text );
-			if ( $img !== false ) {
-				$text = $img;
-			}
-
-			$dtrail = '';
-
-			# Set linktype for CSS - if URL==text, link is essentially free
-			$linktype = ($text == $url) ? 'free' : 'text';
-
-			# No link text, e.g. [http://domain.tld/some.link]
-			if ( $text == '' ) {
-				# Autonumber if allowed. See bug #5918
-				if ( strpos( wfUrlProtocols(), substr($protocol, 0, strpos($protocol, ':')) ) !== false ) {
-					$text = '[' . ++$this->mAutonumber . ']';
-					$linktype = 'autonumber';
-				} else {
-					# Otherwise just use the URL
-					$text = htmlspecialchars( $url );
-					$linktype = 'free';
-				}
-			} else {
-				# Have link text, e.g. [http://domain.tld/some.link text]s
-				# Check for trail
-				list( $dtrail, $trail ) = Linker::splitTrail( $trail );
-			}
-
-			$text = $wgContLang->markNoConversion($text);
-
-			$url = Sanitizer::cleanUrl( $url );
-
-			# Process the trail (i.e. everything after this link up until start of the next link),
-			# replacing any non-bracketed links
-			$trail = $this->replaceFreeExternalLinks( $trail );
-
-			# Use the encoded URL
-			# This means that users can paste URLs directly into the text
-			# Funny characters like ö aren't valid in URLs anyway
-			# This was changed in August 2004
-			$s .= $sk->makeExternalLink( $url, $text, false, $linktype, $this->mTitle->getNamespace() ) . $dtrail . $trail;
-
-			# Register link in the output object.
-			# Replace unnecessary URL escape codes with the referenced character
-			# This prevents spammers from hiding links from the filters
-			$pasteurized = self::replaceUnusualEscapes( $url );
-			$this->mOutput->addExternalLink( $pasteurized );
-		}
-
-		wfProfileOut( $fname );
-		return $s;
-	}
-
-	/**
-	 * Replace anything that looks like a URL with a link
-	 * @private
-	 */
-	function replaceFreeExternalLinks( $text ) {
-		global $wgContLang;
-		$fname = 'Parser::replaceFreeExternalLinks';
-		wfProfileIn( $fname );
-
-		$bits = preg_split( '/(\b(?:' . wfUrlProtocols() . '))/S', $text, -1, PREG_SPLIT_DELIM_CAPTURE );
-		$s = array_shift( $bits );
-		$i = 0;
-
-		$sk = $this->mOptions->getSkin();
-
-		while ( $i < count( $bits ) ){
-			$protocol = $bits[$i++];
-			$remainder = $bits[$i++];
-
-			$m = array();
-			if ( preg_match( '/^('.self::EXT_LINK_URL_CLASS.'+)(.*)$/s', $remainder, $m ) ) {
-				# Found some characters after the protocol that look promising
-				$url = $protocol . $m[1];
-				$trail = $m[2];
-
-				# special case: handle urls as url args:
-				# http://www.example.com/foo?=http://www.example.com/bar
-				if(strlen($trail) == 0 &&
-					isset($bits[$i]) &&
-					preg_match('/^'. wfUrlProtocols() . '$/S', $bits[$i]) &&
-					preg_match( '/^('.self::EXT_LINK_URL_CLASS.'+)(.*)$/s', $bits[$i + 1], $m ))
-				{
-					# add protocol, arg
-					$url .= $bits[$i] . $m[1]; # protocol, url as arg to previous link
-					$i += 2;
-					$trail = $m[2];
-				}
-
-				# The characters '<' and '>' (which were escaped by
-				# removeHTMLtags()) should not be included in
-				# URLs, per RFC 2396.
-				$m2 = array();
-				if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) {
-					$trail = substr($url, $m2[0][1]) . $trail;
-					$url = substr($url, 0, $m2[0][1]);
-				}
-
-				# Move trailing punctuation to $trail
-				$sep = ',;\.:!?';
-				# If there is no left bracket, then consider right brackets fair game too
-				if ( strpos( $url, '(' ) === false ) {
-					$sep .= ')';
-				}
-
-				$numSepChars = strspn( strrev( $url ), $sep );
-				if ( $numSepChars ) {
-					$trail = substr( $url, -$numSepChars ) . $trail;
-					$url = substr( $url, 0, -$numSepChars );
-				}
-
-				$url = Sanitizer::cleanUrl( $url );
-
-				# Is this an external image?
-				$text = $this->maybeMakeExternalImage( $url );
-				if ( $text === false ) {
-					# Not an image, make a link
-					$text = $sk->makeExternalLink( $url, $wgContLang->markNoConversion($url), true, 'free', $this->mTitle->getNamespace() );
-					# Register it in the output object...
-					# Replace unnecessary URL escape codes with their equivalent characters
-					$pasteurized = self::replaceUnusualEscapes( $url );
-					$this->mOutput->addExternalLink( $pasteurized );
-				}
-				$s .= $text . $trail;
-			} else {
-				$s .= $protocol . $remainder;
-			}
-		}
-		wfProfileOut( $fname );
-		return $s;
-	}
-
-	/**
-	 * Replace unusual URL escape codes with their equivalent characters
-	 * @param string
-	 * @return string
-	 * @static
-	 * @todo  This can merge genuinely required bits in the path or query string,
-	 *        breaking legit URLs. A proper fix would treat the various parts of
-	 *        the URL differently; as a workaround, just use the output for
-	 *        statistical records, not for actual linking/output.
-	 */
-	static function replaceUnusualEscapes( $url ) {
-		return preg_replace_callback( '/%[0-9A-Fa-f]{2}/',
-			array( __CLASS__, 'replaceUnusualEscapesCallback' ), $url );
-	}
-
-	/**
-	 * Callback function used in replaceUnusualEscapes().
-	 * Replaces unusual URL escape codes with their equivalent character
-	 * @static
-	 * @private
-	 */
-	private static function replaceUnusualEscapesCallback( $matches ) {
-		$char = urldecode( $matches[0] );
-		$ord = ord( $char );
-		// Is it an unsafe or HTTP reserved character according to RFC 1738?
-		if ( $ord > 32 && $ord < 127 && strpos( '<>"#{}|\^~[]`;/?', $char ) === false ) {
-			// No, shouldn't be escaped
-			return $char;
-		} else {
-			// Yes, leave it escaped
-			return $matches[0];
-		}
-	}
-
-	/**
-	 * make an image if it's allowed, either through the global
-	 * option or through the exception
-	 * @private
-	 */
-	function maybeMakeExternalImage( $url ) {
-		$sk = $this->mOptions->getSkin();
-		$imagesfrom = $this->mOptions->getAllowExternalImagesFrom();
-		$imagesexception = !empty($imagesfrom);
-		$text = false;
-		if ( $this->mOptions->getAllowExternalImages()
-		     || ( $imagesexception && strpos( $url, $imagesfrom ) === 0 ) ) {
-			if ( preg_match( self::EXT_IMAGE_REGEX, $url ) ) {
-				# Image found
-				$text = $sk->makeExternalImage( htmlspecialchars( $url ) );
-			}
-		}
-		return $text;
-	}
-
-	/**
-	 * Process [[ ]] wikilinks
-	 *
-	 * @private
-	 */
-	function replaceInternalLinks( $s ) {
-		global $wgContLang;
-		static $fname = 'Parser::replaceInternalLinks' ;
-
-		wfProfileIn( $fname );
-
-		wfProfileIn( $fname.'-setup' );
-		static $tc = FALSE;
-		# the % is needed to support urlencoded titles as well
-		if ( !$tc ) { $tc = Title::legalChars() . '#%'; }
-
-		$sk = $this->mOptions->getSkin();
-
-		#split the entire text string on occurences of [[
-		$a = explode( '[[', ' ' . $s );
-		#get the first element (all text up to first [[), and remove the space we added
-		$s = array_shift( $a );
-		$s = substr( $s, 1 );
-
-		# Match a link having the form [[namespace:link|alternate]]trail
-		static $e1 = FALSE;
-		if ( !$e1 ) { $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD"; }
-		# Match cases where there is no "]]", which might still be images
-		static $e1_img = FALSE;
-		if ( !$e1_img ) { $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD"; }
-		# Match the end of a line for a word that's not followed by whitespace,
-		# e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
-		$e2 = wfMsgForContent( 'linkprefix' );
-
-		$useLinkPrefixExtension = $wgContLang->linkPrefixExtension();
-		if( is_null( $this->mTitle ) ) {
-			throw new MWException( __METHOD__.": \$this->mTitle is null\n" );
-		}
-		$nottalk = !$this->mTitle->isTalkPage();
-
-		if ( $useLinkPrefixExtension ) {
-			$m = array();
-			if ( preg_match( $e2, $s, $m ) ) {
-				$first_prefix = $m[2];
-			} else {
-				$first_prefix = false;
-			}
-		} else {
-			$prefix = '';
-		}
-
-		if($wgContLang->hasVariants()) {
-			$selflink = $wgContLang->convertLinkToAllVariants($this->mTitle->getPrefixedText());
-		} else {
-			$selflink = array($this->mTitle->getPrefixedText());
-		}
-		$useSubpages = $this->areSubpagesAllowed();
-		wfProfileOut( $fname.'-setup' );
-
-		# Loop for each link
-		for ($k = 0; isset( $a[$k] ); $k++) {
-			$line = $a[$k];
-			if ( $useLinkPrefixExtension ) {
-				wfProfileIn( $fname.'-prefixhandling' );
-				if ( preg_match( $e2, $s, $m ) ) {
-					$prefix = $m[2];
-					$s = $m[1];
-				} else {
-					$prefix='';
-				}
-				# first link
-				if($first_prefix) {
-					$prefix = $first_prefix;
-					$first_prefix = false;
-				}
-				wfProfileOut( $fname.'-prefixhandling' );
-			}
-
-			$might_be_img = false;
-
-			wfProfileIn( "$fname-e1" );
-			if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
-				$text = $m[2];
-				# If we get a ] at the beginning of $m[3] that means we have a link that's something like:
-				# [[Image:Foo.jpg|[http://example.com desc]]] <- having three ] in a row fucks up,
-				# the real problem is with the $e1 regex
-				# See bug 1300.
-				#
-				# Still some problems for cases where the ] is meant to be outside punctuation,
-				# and no image is in sight. See bug 2095.
-				#
-				if( $text !== '' &&
-					substr( $m[3], 0, 1 ) === ']' &&
-					strpos($text, '[') !== false
-				)
-				{
-					$text .= ']'; # so that replaceExternalLinks($text) works later
-					$m[3] = substr( $m[3], 1 );
-				}
-				# fix up urlencoded title texts
-				if( strpos( $m[1], '%' ) !== false ) {
-					# Should anchors '#' also be rejected?
-					$m[1] = str_replace( array('<', '>'), array('<', '>'), urldecode($m[1]) );
-				}
-				$trail = $m[3];
-			} elseif( preg_match($e1_img, $line, $m) ) { # Invalid, but might be an image with a link in its caption
-				$might_be_img = true;
-				$text = $m[2];
-				if ( strpos( $m[1], '%' ) !== false ) {
-					$m[1] = urldecode($m[1]);
-				}
-				$trail = "";
-			} else { # Invalid form; output directly
-				$s .= $prefix . '[[' . $line ;
-				wfProfileOut( "$fname-e1" );
-				continue;
-			}
-			wfProfileOut( "$fname-e1" );
-			wfProfileIn( "$fname-misc" );
-
-			# Don't allow internal links to pages containing
-			# PROTO: where PROTO is a valid URL protocol; these
-			# should be external links.
-			if (preg_match('/^\b(?:' . wfUrlProtocols() . ')/', $m[1])) {
-				$s .= $prefix . '[[' . $line ;
-				continue;
-			}
-
-			# Make subpage if necessary
-			if( $useSubpages ) {
-				$link = $this->maybeDoSubpageLink( $m[1], $text );
-			} else {
-				$link = $m[1];
-			}
-
-			$noforce = (substr($m[1], 0, 1) != ':');
-			if (!$noforce) {
-				# Strip off leading ':'
-				$link = substr($link, 1);
-			}
-
-			wfProfileOut( "$fname-misc" );
-			wfProfileIn( "$fname-title" );
-			$nt = Title::newFromText( $this->mStripState->unstripNoWiki($link) );
-			if( !$nt ) {
-				$s .= $prefix . '[[' . $line;
-				wfProfileOut( "$fname-title" );
-				continue;
-			}
-
-			$ns = $nt->getNamespace();
-			$iw = $nt->getInterWiki();
-			wfProfileOut( "$fname-title" );
-
-			if ($might_be_img) { # if this is actually an invalid link
-				wfProfileIn( "$fname-might_be_img" );
-				if ($ns == NS_IMAGE && $noforce) { #but might be an image
-					$found = false;
-					while (isset ($a[$k+1]) ) {
-						#look at the next 'line' to see if we can close it there
-						$spliced = array_splice( $a, $k + 1, 1 );
-						$next_line = array_shift( $spliced );
-						$m = explode( ']]', $next_line, 3 );
-						if ( count( $m ) == 3 ) {
-							# the first ]] closes the inner link, the second the image
-							$found = true;
-							$text .= "[[{$m[0]}]]{$m[1]}";
-							$trail = $m[2];
-							break;
-						} elseif ( count( $m ) == 2 ) {
-							#if there's exactly one ]] that's fine, we'll keep looking
-							$text .= "[[{$m[0]}]]{$m[1]}";
-						} else {
-							#if $next_line is invalid too, we need look no further
-							$text .= '[[' . $next_line;
-							break;
-						}
-					}
-					if ( !$found ) {
-						# we couldn't find the end of this imageLink, so output it raw
-						#but don't ignore what might be perfectly normal links in the text we've examined
-						$text = $this->replaceInternalLinks($text);
-						$s .= "{$prefix}[[$link|$text";
-						# note: no $trail, because without an end, there *is* no trail
-						wfProfileOut( "$fname-might_be_img" );
-						continue;
-					}
-				} else { #it's not an image, so output it raw
-					$s .= "{$prefix}[[$link|$text";
-					# note: no $trail, because without an end, there *is* no trail
-					wfProfileOut( "$fname-might_be_img" );
-					continue;
-				}
-				wfProfileOut( "$fname-might_be_img" );
-			}
-
-			$wasblank = ( '' == $text );
-			if( $wasblank ) $text = $link;
-
-			# Link not escaped by : , create the various objects
-			if( $noforce ) {
-
-				# Interwikis
-				wfProfileIn( "$fname-interwiki" );
-				if( $iw && $this->mOptions->getInterwikiMagic() && $nottalk && $wgContLang->getLanguageName( $iw ) ) {
-					$this->mOutput->addLanguageLink( $nt->getFullText() );
-					$s = rtrim($s . $prefix);
-					$s .= trim($trail, "\n") == '' ? '': $prefix . $trail;
-					wfProfileOut( "$fname-interwiki" );
-					continue;
-				}
-				wfProfileOut( "$fname-interwiki" );
-
-				if ( $ns == NS_IMAGE ) {
-					wfProfileIn( "$fname-image" );
-					if ( !wfIsBadImage( $nt->getDBkey(), $this->mTitle ) ) {
-						# recursively parse links inside the image caption
-						# actually, this will parse them in any other parameters, too,
-						# but it might be hard to fix that, and it doesn't matter ATM
-						$text = $this->replaceExternalLinks($text);
-						$text = $this->replaceInternalLinks($text);
-
-						# cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them
-						$s .= $prefix . $this->armorLinks( $this->makeImage( $nt, $text ) ) . $trail;
-						$this->mOutput->addImage( $nt->getDBkey() );
-
-						wfProfileOut( "$fname-image" );
-						continue;
-					} else {
-						# We still need to record the image's presence on the page
-						$this->mOutput->addImage( $nt->getDBkey() );
-					}
-					wfProfileOut( "$fname-image" );
-
-				}
-
-				if ( $ns == NS_CATEGORY ) {
-					wfProfileIn( "$fname-category" );
-					$s = rtrim($s . "\n"); # bug 87
-
-					if ( $wasblank ) {
-						$sortkey = $this->getDefaultSort();
-					} else {
-						$sortkey = $text;
-					}
-					$sortkey = Sanitizer::decodeCharReferences( $sortkey );
-					$sortkey = str_replace( "\n", '', $sortkey );
-					$sortkey = $wgContLang->convertCategoryKey( $sortkey );
-					$this->mOutput->addCategory( $nt->getDBkey(), $sortkey );
-
-					/**
-					 * Strip the whitespace Category links produce, see bug 87
-					 * @todo We might want to use trim($tmp, "\n") here.
-					 */
-					$s .= trim($prefix . $trail, "\n") == '' ? '': $prefix . $trail;
-
-					wfProfileOut( "$fname-category" );
-					continue;
-				}
-			}
-
-			# Self-link checking
-			if( $nt->getFragment() === '' ) {
-				if( in_array( $nt->getPrefixedText(), $selflink, true ) ) {
-					$s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail );
-					continue;
-				}
-			}
-
-			# Special and Media are pseudo-namespaces; no pages actually exist in them
-			if( $ns == NS_MEDIA ) {
-				# Give extensions a chance to select the file revision for us
-				$skip = $time = false;
-				wfRunHooks( 'BeforeParserMakeImageLinkObj', array( &$this, &$nt, &$skip, &$time ) );
-				if ( $skip ) {
-					$link = $sk->makeLinkObj( $nt );
-				} else {
-					$link = $sk->makeMediaLinkObj( $nt, $text, $time );
-				}
-				# Cloak with NOPARSE to avoid replacement in replaceExternalLinks
-				$s .= $prefix . $this->armorLinks( $link ) . $trail;
-				$this->mOutput->addImage( $nt->getDBkey() );
-				continue;
-			} elseif( $ns == NS_SPECIAL ) {
-				if( SpecialPage::exists( $nt->getDBkey() ) ) {
-					$s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix );
-				} else {
-					$s .= $this->makeLinkHolder( $nt, $text, '', $trail, $prefix );
-				}
-				continue;
-			} elseif( $ns == NS_IMAGE ) {
-				$img = wfFindFile( $nt );
-				if( $img ) {
-					// Force a blue link if the file exists; may be a remote
-					// upload on the shared repository, and we want to see its
-					// auto-generated page.
-					$s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix );
-					$this->mOutput->addLink( $nt );
-					continue;
-				}
-			}
-			$s .= $this->makeLinkHolder( $nt, $text, '', $trail, $prefix );
-		}
-		wfProfileOut( $fname );
-		return $s;
-	}
-
-	/**
-	 * Make a link placeholder. The text returned can be later resolved to a real link with
-	 * replaceLinkHolders(). This is done for two reasons: firstly to avoid further
-	 * parsing of interwiki links, and secondly to allow all existence checks and
-	 * article length checks (for stub links) to be bundled into a single query.
-	 *
-	 */
-	function makeLinkHolder( &$nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
-		wfProfileIn( __METHOD__ );
-		if ( ! is_object($nt) ) {
-			# Fail gracefully
-			$retVal = "{$prefix}{$text}{$trail}";
-		} else {
-			# Separate the link trail from the rest of the link
-			list( $inside, $trail ) = Linker::splitTrail( $trail );
-
-			if ( $nt->isExternal() ) {
-				$nr = array_push( $this->mInterwikiLinkHolders['texts'], $prefix.$text.$inside );
-				$this->mInterwikiLinkHolders['titles'][] = $nt;
-				$retVal = '{$trail}";
-			} else {
-				$nr = array_push( $this->mLinkHolders['namespaces'], $nt->getNamespace() );
-				$this->mLinkHolders['dbkeys'][] = $nt->getDBkey();
-				$this->mLinkHolders['queries'][] = $query;
-				$this->mLinkHolders['texts'][] = $prefix.$text.$inside;
-				$this->mLinkHolders['titles'][] = $nt;
-
-				$retVal = '{$trail}";
-			}
-		}
-		wfProfileOut( __METHOD__ );
-		return $retVal;
-	}
-
-	/**
-	 * Render a forced-blue link inline; protect against double expansion of
-	 * URLs if we're in a mode that prepends full URL prefixes to internal links.
-	 * Since this little disaster has to split off the trail text to avoid
-	 * breaking URLs in the following text without breaking trails on the
-	 * wiki links, it's been made into a horrible function.
-	 *
-	 * @param Title $nt
-	 * @param string $text
-	 * @param string $query
-	 * @param string $trail
-	 * @param string $prefix
-	 * @return string HTML-wikitext mix oh yuck
-	 */
-	function makeKnownLinkHolder( $nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
-		list( $inside, $trail ) = Linker::splitTrail( $trail );
-		$sk = $this->mOptions->getSkin();
-		$link = $sk->makeKnownLinkObj( $nt, $text, $query, $inside, $prefix );
-		return $this->armorLinks( $link ) . $trail;
-	}
-
-	/**
-	 * Insert a NOPARSE hacky thing into any inline links in a chunk that's
-	 * going to go through further parsing steps before inline URL expansion.
-	 *
-	 * In particular this is important when using action=render, which causes
-	 * full URLs to be included.
-	 *
-	 * Oh man I hate our multi-layer parser!
-	 *
-	 * @param string more-or-less HTML
-	 * @return string less-or-more HTML with NOPARSE bits
-	 */
-	function armorLinks( $text ) {
-		return preg_replace( '/\b(' . wfUrlProtocols() . ')/',
-			"{$this->mUniqPrefix}NOPARSE$1", $text );
-	}
-
-	/**
-	 * Return true if subpage links should be expanded on this page.
-	 * @return bool
-	 */
-	function areSubpagesAllowed() {
-		# Some namespaces don't allow subpages
-		global $wgNamespacesWithSubpages;
-		return !empty($wgNamespacesWithSubpages[$this->mTitle->getNamespace()]);
-	}
-
-	/**
-	 * Handle link to subpage if necessary
-	 * @param string $target the source of the link
-	 * @param string &$text the link text, modified as necessary
-	 * @return string the full name of the link
-	 * @private
-	 */
-	function maybeDoSubpageLink($target, &$text) {
-		# Valid link forms:
-		# Foobar -- normal
-		# :Foobar -- override special treatment of prefix (images, language links)
-		# /Foobar -- convert to CurrentPage/Foobar
-		# /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text
-		# ../ -- convert to CurrentPage, from CurrentPage/CurrentSubPage
-		# ../Foobar -- convert to CurrentPage/Foobar, from CurrentPage/CurrentSubPage
-
-		$fname = 'Parser::maybeDoSubpageLink';
-		wfProfileIn( $fname );
-		$ret = $target; # default return value is no change
-
-		# Some namespaces don't allow subpages,
-		# so only perform processing if subpages are allowed
-		if( $this->areSubpagesAllowed() ) {
-			$hash = strpos( $target, '#' );
-			if( $hash !== false ) {
-				$suffix = substr( $target, $hash );
-				$target = substr( $target, 0, $hash );
-			} else {
-				$suffix = '';
-			}
-			# bug 7425
-			$target = trim( $target );
-			# Look at the first character
-			if( $target != '' && $target{0} == '/' ) {
-				# / at end means we don't want the slash to be shown
-				$m = array();
-				$trailingSlashes = preg_match_all( '%(/+)$%', $target, $m );
-				if( $trailingSlashes ) {
-					$noslash = $target = substr( $target, 1, -strlen($m[0][0]) );
-				} else {
-					$noslash = substr( $target, 1 );
-				}
-
-				$ret = $this->mTitle->getPrefixedText(). '/' . trim($noslash) . $suffix;
-				if( '' === $text ) {
-					$text = $target . $suffix;
-				} # this might be changed for ugliness reasons
-			} else {
-				# check for .. subpage backlinks
-				$dotdotcount = 0;
-				$nodotdot = $target;
-				while( strncmp( $nodotdot, "../", 3 ) == 0 ) {
-					++$dotdotcount;
-					$nodotdot = substr( $nodotdot, 3 );
-				}
-				if($dotdotcount > 0) {
-					$exploded = explode( '/', $this->mTitle->GetPrefixedText() );
-					if( count( $exploded ) > $dotdotcount ) { # not allowed to go below top level page
-						$ret = implode( '/', array_slice( $exploded, 0, -$dotdotcount ) );
-						# / at the end means don't show full path
-						if( substr( $nodotdot, -1, 1 ) == '/' ) {
-							$nodotdot = substr( $nodotdot, 0, -1 );
-							if( '' === $text ) {
-								$text = $nodotdot . $suffix;
-							}
-						}
-						$nodotdot = trim( $nodotdot );
-						if( $nodotdot != '' ) {
-							$ret .= '/' . $nodotdot;
-						}
-						$ret .= $suffix;
-					}
-				}
-			}
-		}
-
-		wfProfileOut( $fname );
-		return $ret;
-	}
-
-	/**#@+
-	 * Used by doBlockLevels()
-	 * @private
-	 */
-	/* private */ function closeParagraph() {
-		$result = '';
-		if ( '' != $this->mLastSection ) {
-			$result = 'mLastSection  . ">\n";
-		}
-		$this->mInPre = false;
-		$this->mLastSection = '';
-		return $result;
-	}
-	# getCommon() returns the length of the longest common substring
-	# of both arguments, starting at the beginning of both.
-	#
-	/* private */ function getCommon( $st1, $st2 ) {
-		$fl = strlen( $st1 );
-		$shorter = strlen( $st2 );
-		if ( $fl < $shorter ) { $shorter = $fl; }
-
-		for ( $i = 0; $i < $shorter; ++$i ) {
-			if ( $st1{$i} != $st2{$i} ) { break; }
-		}
-		return $i;
-	}
-	# These next three functions open, continue, and close the list
-	# element appropriate to the prefix character passed into them.
-	#
-	/* private */ function openList( $char ) {
-		$result = $this->closeParagraph();
-
-		if ( '*' == $char ) { $result .= '
    • '; }
-		else if ( '#' == $char ) { $result .= '
      1. '; }
-		else if ( ':' == $char ) { $result .= '
        '; }
-		else if ( ';' == $char ) {
-			$result .= '
        ';
-			$this->mDTopen = true;
-		}
-		else { $result = ''; }
-
-		return $result;
-	}
-
-	/* private */ function nextItem( $char ) {
-		if ( '*' == $char || '#' == $char ) { return '
      2. '; }
-		else if ( ':' == $char || ';' == $char ) {
-			$close = '';
-			if ( $this->mDTopen ) { $close = ''; }
-			if ( ';' == $char ) {
-				$this->mDTopen = true;
-				return $close . '
        ';
-			} else {
-				$this->mDTopen = false;
-				return $close . '
        ';
-			}
-		}
-		return '';
-	}
-
-	/* private */ function closeList( $char ) {
-		if ( '*' == $char ) { $text = '
    '; }
-		else if ( '#' == $char ) { $text = ''; }
-		else if ( ':' == $char ) {
-			if ( $this->mDTopen ) {
-				$this->mDTopen = false;
-				$text = '';
-			} else {
-				$text = '';
-			}
-		}
-		else {	return ''; }
-		return $text."\n";
-	}
-	/**#@-*/
-
-	/**
-	 * Make lists from lines starting with ':', '*', '#', etc.
-	 *
-	 * @private
-	 * @return string the lists rendered as HTML
-	 */
-	function doBlockLevels( $text, $linestart ) {
-		$fname = 'Parser::doBlockLevels';
-		wfProfileIn( $fname );
-
-		# Parsing through the text line by line.  The main thing
-		# happening here is handling of block-level elements p, pre,
-		# and making lists from lines starting with * # : etc.
-		#
-		$textLines = explode( "\n", $text );
-
-		$lastPrefix = $output = '';
-		$this->mDTopen = $inBlockElem = false;
-		$prefixLength = 0;
-		$paragraphStack = false;
-
-		if ( !$linestart ) {
-			$output .= array_shift( $textLines );
-		}
-		foreach ( $textLines as $oLine ) {
-			$lastPrefixLength = strlen( $lastPrefix );
-			$preCloseMatch = preg_match('/<\\/pre/i', $oLine );
-			$preOpenMatch = preg_match('/
    mInPre ) {
-				# Multiple prefixes may abut each other for nested lists.
-				$prefixLength = strspn( $oLine, '*#:;' );
-				$pref = substr( $oLine, 0, $prefixLength );
-
-				# eh?
-				$pref2 = str_replace( ';', ':', $pref );
-				$t = substr( $oLine, $prefixLength );
-				$this->mInPre = !empty($preOpenMatch);
-			} else {
-				# Don't interpret any other prefixes in preformatted text
-				$prefixLength = 0;
-				$pref = $pref2 = '';
-				$t = $oLine;
-			}
-
-			# List generation
-			if( $prefixLength && 0 == strcmp( $lastPrefix, $pref2 ) ) {
-				# Same as the last item, so no need to deal with nesting or opening stuff
-				$output .= $this->nextItem( substr( $pref, -1 ) );
-				$paragraphStack = false;
-
-				if ( substr( $pref, -1 ) == ';') {
-					# The one nasty exception: definition lists work like this:
-					# ; title : definition text
-					# So we check for : in the remainder text to split up the
-					# title and definition, without b0rking links.
-					$term = $t2 = '';
-					if ($this->findColonNoLinks($t, $term, $t2) !== false) {
-						$t = $t2;
-						$output .= $term . $this->nextItem( ':' );
-					}
-				}
-			} elseif( $prefixLength || $lastPrefixLength ) {
-				# Either open or close a level...
-				$commonPrefixLength = $this->getCommon( $pref, $lastPrefix );
-				$paragraphStack = false;
-
-				while( $commonPrefixLength < $lastPrefixLength ) {
-					$output .= $this->closeList( $lastPrefix{$lastPrefixLength-1} );
-					--$lastPrefixLength;
-				}
-				if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) {
-					$output .= $this->nextItem( $pref{$commonPrefixLength-1} );
-				}
-				while ( $prefixLength > $commonPrefixLength ) {
-					$char = substr( $pref, $commonPrefixLength, 1 );
-					$output .= $this->openList( $char );
-
-					if ( ';' == $char ) {
-						# FIXME: This is dupe of code above
-						if ($this->findColonNoLinks($t, $term, $t2) !== false) {
-							$t = $t2;
-							$output .= $term . $this->nextItem( ':' );
-						}
-					}
-					++$commonPrefixLength;
-				}
-				$lastPrefix = $pref2;
-			}
-			if( 0 == $prefixLength ) {
-				wfProfileIn( "$fname-paragraph" );
-				# No prefix (not in list)--go to paragraph mode
-				// XXX: use a stack for nestable elements like span, table and div
-				$openmatch = preg_match('/(?:mUniqPrefix.'-pre|<\\/li|<\\/ul|<\\/ol|<\\/?center)/iS', $t );
-				if ( $openmatch or $closematch ) {
-					$paragraphStack = false;
-					# TODO bug 5718: paragraph closed
-					$output .= $this->closeParagraph();
-					if ( $preOpenMatch and !$preCloseMatch ) {
-						$this->mInPre = true;
-					}
-					if ( $closematch ) {
-						$inBlockElem = false;
-					} else {
-						$inBlockElem = true;
-					}
-				} else if ( !$inBlockElem && !$this->mInPre ) {
-					if ( '' != $t and ' ' == $t{0} and ( $this->mLastSection == 'pre' or trim($t) != '' ) ) {
-						// pre
-						if ($this->mLastSection != 'pre') {
-							$paragraphStack = false;
-							$output .= $this->closeParagraph().'
    ';
-							$this->mLastSection = 'pre';
-						}
-						$t = substr( $t, 1 );
-					} else {
-						// paragraph
-						if ( '' == trim($t) ) {
-							if ( $paragraphStack ) {
-								$output .= $paragraphStack.'
    ';
-								$paragraphStack = false;
-								$this->mLastSection = 'p';
-							} else {
-								if ($this->mLastSection != 'p' ) {
-									$output .= $this->closeParagraph();
-									$this->mLastSection = '';
-									$paragraphStack = '
    ';
-								} else {
-									$paragraphStack = '
    ';
-								}
-							}
-						} else {
-							if ( $paragraphStack ) {
-								$output .= $paragraphStack;
-								$paragraphStack = false;
-								$this->mLastSection = 'p';
-							} else if ($this->mLastSection != 'p') {
-								$output .= $this->closeParagraph().'
    ';
-								$this->mLastSection = 'p';
-							}
-						}
-					}
-				}
-				wfProfileOut( "$fname-paragraph" );
-			}
-			// somewhere above we forget to get out of pre block (bug 785)
-			if($preCloseMatch && $this->mInPre) {
-				$this->mInPre = false;
-			}
-			if ($paragraphStack === false) {
-				$output .= $t."\n";
-			}
-		}
-		while ( $prefixLength ) {
-			$output .= $this->closeList( $pref2{$prefixLength-1} );
-			--$prefixLength;
-		}
-		if ( '' != $this->mLastSection ) {
-			$output .= 'mLastSection . '>';
-			$this->mLastSection = '';
-		}
-
-		wfProfileOut( $fname );
-		return $output;
-	}
-
-	/**
-	 * Split up a string on ':', ignoring any occurences inside tags
-	 * to prevent illegal overlapping.
-	 * @param string $str the string to split
-	 * @param string &$before set to everything before the ':'
-	 * @param string &$after set to everything after the ':'
-	 * return string the position of the ':', or false if none found
-	 */
-	function findColonNoLinks($str, &$before, &$after) {
-		$fname = 'Parser::findColonNoLinks';
-		wfProfileIn( $fname );
-
-		$pos = strpos( $str, ':' );
-		if( $pos === false ) {
-			// Nothing to find!
-			wfProfileOut( $fname );
-			return false;
-		}
-
-		$lt = strpos( $str, '<' );
-		if( $lt === false || $lt > $pos ) {
-			// Easy; no tag nesting to worry about
-			$before = substr( $str, 0, $pos );
-			$after = substr( $str, $pos+1 );
-			wfProfileOut( $fname );
-			return $pos;
-		}
-
-		// Ugly state machine to walk through avoiding tags.
-		$state = self::COLON_STATE_TEXT;
-		$stack = 0;
-		$len = strlen( $str );
-		for( $i = 0; $i < $len; $i++ ) {
-			$c = $str{$i};
-
-			switch( $state ) {
-			// (Using the number is a performance hack for common cases)
-			case 0: // self::COLON_STATE_TEXT:
-				switch( $c ) {
-				case "<":
-					// Could be either a  tag or an  tag
-					$state = self::COLON_STATE_TAGSTART;
-					break;
-				case ":":
-					if( $stack == 0 ) {
-						// We found it!
-						$before = substr( $str, 0, $i );
-						$after = substr( $str, $i + 1 );
-						wfProfileOut( $fname );
-						return $i;
-					}
-					// Embedded in a tag; don't break it.
-					break;
-				default:
-					// Skip ahead looking for something interesting
-					$colon = strpos( $str, ':', $i );
-					if( $colon === false ) {
-						// Nothing else interesting
-						wfProfileOut( $fname );
-						return false;
-					}
-					$lt = strpos( $str, '<', $i );
-					if( $stack === 0 ) {
-						if( $lt === false || $colon < $lt ) {
-							// We found it!
-							$before = substr( $str, 0, $colon );
-							$after = substr( $str, $colon + 1 );
-							wfProfileOut( $fname );
-							return $i;
-						}
-					}
-					if( $lt === false ) {
-						// Nothing else interesting to find; abort!
-						// We're nested, but there's no close tags left. Abort!
-						break 2;
-					}
-					// Skip ahead to next tag start
-					$i = $lt;
-					$state = self::COLON_STATE_TAGSTART;
-				}
-				break;
-			case 1: // self::COLON_STATE_TAG:
-				// In a 
-				switch( $c ) {
-				case ">":
-					$stack++;
-					$state = self::COLON_STATE_TEXT;
-					break;
-				case "/":
-					// Slash may be followed by >?
-					$state = self::COLON_STATE_TAGSLASH;
-					break;
-				default:
-					// ignore
-				}
-				break;
-			case 2: // self::COLON_STATE_TAGSTART:
-				switch( $c ) {
-				case "/":
-					$state = self::COLON_STATE_CLOSETAG;
-					break;
-				case "!":
-					$state = self::COLON_STATE_COMMENT;
-					break;
-				case ">":
-					// Illegal early close? This shouldn't happen D:
-					$state = self::COLON_STATE_TEXT;
-					break;
-				default:
-					$state = self::COLON_STATE_TAG;
-				}
-				break;
-			case 3: // self::COLON_STATE_CLOSETAG:
-				// In a 
-				if( $c == ">" ) {
-					$stack--;
-					if( $stack < 0 ) {
-						wfDebug( "Invalid input in $fname; too many close tags\n" );
-						wfProfileOut( $fname );
-						return false;
-					}
-					$state = self::COLON_STATE_TEXT;
-				}
-				break;
-			case self::COLON_STATE_TAGSLASH:
-				if( $c == ">" ) {
-					// Yes, a self-closed tag 
-					$state = self::COLON_STATE_TEXT;
-				} else {
-					// Probably we're jumping the gun, and this is an attribute
-					$state = self::COLON_STATE_TAG;
-				}
-				break;
-			case 5: // self::COLON_STATE_COMMENT:
-				if( $c == "-" ) {
-					$state = self::COLON_STATE_COMMENTDASH;
-				}
-				break;
-			case self::COLON_STATE_COMMENTDASH:
-				if( $c == "-" ) {
-					$state = self::COLON_STATE_COMMENTDASHDASH;
-				} else {
-					$state = self::COLON_STATE_COMMENT;
-				}
-				break;
-			case self::COLON_STATE_COMMENTDASHDASH:
-				if( $c == ">" ) {
-					$state = self::COLON_STATE_TEXT;
-				} else {
-					$state = self::COLON_STATE_COMMENT;
-				}
-				break;
-			default:
-				throw new MWException( "State machine error in $fname" );
-			}
-		}
-		if( $stack > 0 ) {
-			wfDebug( "Invalid input in $fname; not enough close tags (stack $stack, state $state)\n" );
-			return false;
-		}
-		wfProfileOut( $fname );
-		return false;
-	}
-
-	/**
-	 * Return value of a magic variable (like PAGENAME)
-	 *
-	 * @private
-	 */
-	function getVariableValue( $index ) {
-		global $wgContLang, $wgSitename, $wgServer, $wgServerName, $wgScriptPath;
-
-		/**
-		 * Some of these require message or data lookups and can be
-		 * expensive to check many times.
-		 */
-		static $varCache = array();
-		if ( wfRunHooks( 'ParserGetVariableValueVarCache', array( &$this, &$varCache ) ) ) {
-			if ( isset( $varCache[$index] ) ) {
-				return $varCache[$index];
-			}
-		}
-
-		$ts = time();
-		wfRunHooks( 'ParserGetVariableValueTs', array( &$this, &$ts ) );
-
-		# Use the time zone
-		global $wgLocaltimezone;
-		if ( isset( $wgLocaltimezone ) ) {
-			$oldtz = getenv( 'TZ' );
-			putenv( 'TZ='.$wgLocaltimezone );
-		}
-
-		wfSuppressWarnings(); // E_STRICT system time bitching
-		$localTimestamp = date( 'YmdHis', $ts );
-		$localMonth = date( 'm', $ts );
-		$localMonthName = date( 'n', $ts );
-		$localDay = date( 'j', $ts );
-		$localDay2 = date( 'd', $ts );
-		$localDayOfWeek = date( 'w', $ts );
-		$localWeek = date( 'W', $ts );
-		$localYear = date( 'Y', $ts );
-		$localHour = date( 'H', $ts );
-		if ( isset( $wgLocaltimezone ) ) {
-			putenv( 'TZ='.$oldtz );
-		}
-		wfRestoreWarnings();
-
-		switch ( $index ) {
-			case 'currentmonth':
-				return $varCache[$index] = $wgContLang->formatNum( gmdate( 'm', $ts ) );
-			case 'currentmonthname':
-				return $varCache[$index] = $wgContLang->getMonthName( gmdate( 'n', $ts ) );
-			case 'currentmonthnamegen':
-				return $varCache[$index] = $wgContLang->getMonthNameGen( gmdate( 'n', $ts ) );
-			case 'currentmonthabbrev':
-				return $varCache[$index] = $wgContLang->getMonthAbbreviation( gmdate( 'n', $ts ) );
-			case 'currentday':
-				return $varCache[$index] = $wgContLang->formatNum( gmdate( 'j', $ts ) );
-			case 'currentday2':
-				return $varCache[$index] = $wgContLang->formatNum( gmdate( 'd', $ts ) );
-			case 'localmonth':
-				return $varCache[$index] = $wgContLang->formatNum( $localMonth );
-			case 'localmonthname':
-				return $varCache[$index] = $wgContLang->getMonthName( $localMonthName );
-			case 'localmonthnamegen':
-				return $varCache[$index] = $wgContLang->getMonthNameGen( $localMonthName );
-			case 'localmonthabbrev':
-				return $varCache[$index] = $wgContLang->getMonthAbbreviation( $localMonthName );
-			case 'localday':
-				return $varCache[$index] = $wgContLang->formatNum( $localDay );
-			case 'localday2':
-				return $varCache[$index] = $wgContLang->formatNum( $localDay2 );
-			case 'pagename':
-				return wfEscapeWikiText( $this->mTitle->getText() );
-			case 'pagenamee':
-				return $this->mTitle->getPartialURL();
-			case 'fullpagename':
-				return wfEscapeWikiText( $this->mTitle->getPrefixedText() );
-			case 'fullpagenamee':
-				return $this->mTitle->getPrefixedURL();
-			case 'subpagename':
-				return wfEscapeWikiText( $this->mTitle->getSubpageText() );
-			case 'subpagenamee':
-				return $this->mTitle->getSubpageUrlForm();
-			case 'basepagename':
-				return wfEscapeWikiText( $this->mTitle->getBaseText() );
-			case 'basepagenamee':
-				return wfUrlEncode( str_replace( ' ', '_', $this->mTitle->getBaseText() ) );
-			case 'talkpagename':
-				if( $this->mTitle->canTalk() ) {
-					$talkPage = $this->mTitle->getTalkPage();
-					return wfEscapeWikiText( $talkPage->getPrefixedText() );
-				} else {
-					return '';
-				}
-			case 'talkpagenamee':
-				if( $this->mTitle->canTalk() ) {
-					$talkPage = $this->mTitle->getTalkPage();
-					return $talkPage->getPrefixedUrl();
-				} else {
-					return '';
-				}
-			case 'subjectpagename':
-				$subjPage = $this->mTitle->getSubjectPage();
-				return wfEscapeWikiText( $subjPage->getPrefixedText() );
-			case 'subjectpagenamee':
-				$subjPage = $this->mTitle->getSubjectPage();
-				return $subjPage->getPrefixedUrl();
-			case 'revisionid':
-				return $this->mRevisionId;
-			case 'revisionday':
-				return intval( substr( $this->getRevisionTimestamp(), 6, 2 ) );
-			case 'revisionday2':
-				return substr( $this->getRevisionTimestamp(), 6, 2 );
-			case 'revisionmonth':
-				return intval( substr( $this->getRevisionTimestamp(), 4, 2 ) );
-			case 'revisionyear':
-				return substr( $this->getRevisionTimestamp(), 0, 4 );
-			case 'revisiontimestamp':
-				return $this->getRevisionTimestamp();
-			case 'namespace':
-				return str_replace('_',' ',$wgContLang->getNsText( $this->mTitle->getNamespace() ) );
-			case 'namespacee':
-				return wfUrlencode( $wgContLang->getNsText( $this->mTitle->getNamespace() ) );
-			case 'talkspace':
-				return $this->mTitle->canTalk() ? str_replace('_',' ',$this->mTitle->getTalkNsText()) : '';
-			case 'talkspacee':
-				return $this->mTitle->canTalk() ? wfUrlencode( $this->mTitle->getTalkNsText() ) : '';
-			case 'subjectspace':
-				return $this->mTitle->getSubjectNsText();
-			case 'subjectspacee':
-				return( wfUrlencode( $this->mTitle->getSubjectNsText() ) );
-			case 'currentdayname':
-				return $varCache[$index] = $wgContLang->getWeekdayName( gmdate( 'w', $ts ) + 1 );
-			case 'currentyear':
-				return $varCache[$index] = $wgContLang->formatNum( gmdate( 'Y', $ts ), true );
-			case 'currenttime':
-				return $varCache[$index] = $wgContLang->time( wfTimestamp( TS_MW, $ts ), false, false );
-			case 'currenthour':
-				return $varCache[$index] = $wgContLang->formatNum( gmdate( 'H', $ts ), true );
-			case 'currentweek':
-				// @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to
-				// int to remove the padding
-				return $varCache[$index] = $wgContLang->formatNum( (int)gmdate( 'W', $ts ) );
-			case 'currentdow':
-				return $varCache[$index] = $wgContLang->formatNum( gmdate( 'w', $ts ) );
-			case 'localdayname':
-				return $varCache[$index] = $wgContLang->getWeekdayName( $localDayOfWeek + 1 );
-			case 'localyear':
-				return $varCache[$index] = $wgContLang->formatNum( $localYear, true );
-			case 'localtime':
-				return $varCache[$index] = $wgContLang->time( $localTimestamp, false, false );
-			case 'localhour':
-				return $varCache[$index] = $wgContLang->formatNum( $localHour, true );
-			case 'localweek':
-				// @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to
-				// int to remove the padding
-				return $varCache[$index] = $wgContLang->formatNum( (int)$localWeek );
-			case 'localdow':
-				return $varCache[$index] = $wgContLang->formatNum( $localDayOfWeek );
-			case 'numberofarticles':
-				return $varCache[$index] = $wgContLang->formatNum( SiteStats::articles() );
-			case 'numberoffiles':
-				return $varCache[$index] = $wgContLang->formatNum( SiteStats::images() );
-			case 'numberofusers':
-				return $varCache[$index] = $wgContLang->formatNum( SiteStats::users() );
-			case 'numberofpages':
-				return $varCache[$index] = $wgContLang->formatNum( SiteStats::pages() );
-			case 'numberofadmins':
-				return $varCache[$index]  = $wgContLang->formatNum( SiteStats::admins() );
-			case 'numberofedits':
-				return $varCache[$index]  = $wgContLang->formatNum( SiteStats::edits() );
-			case 'currenttimestamp':
-				return $varCache[$index] = wfTimestampNow();
-			case 'localtimestamp':
-				return $varCache[$index] = $localTimestamp;
-			case 'currentversion':
-				return $varCache[$index] = SpecialVersion::getVersion();
-			case 'sitename':
-				return $wgSitename;
-			case 'server':
-				return $wgServer;
-			case 'servername':
-				return $wgServerName;
-			case 'scriptpath':
-				return $wgScriptPath;
-			case 'directionmark':
-				return $wgContLang->getDirMark();
-			case 'contentlanguage':
-				global $wgContLanguageCode;
-				return $wgContLanguageCode;
-			default:
-				$ret = null;
-				if ( wfRunHooks( 'ParserGetVariableValueSwitch', array( &$this, &$varCache, &$index, &$ret ) ) )
-					return $ret;
-				else
-					return null;
-		}
-	}
-
-	/**
-	 * initialise the magic variables (like CURRENTMONTHNAME)
-	 *
-	 * @private
-	 */
-	function initialiseVariables() {
-		$fname = 'Parser::initialiseVariables';
-		wfProfileIn( $fname );
-		$variableIDs = MagicWord::getVariableIDs();
-
-		$this->mVariables = array();
-		foreach ( $variableIDs as $id ) {
-			$mw =& MagicWord::get( $id );
-			$mw->addToArray( $this->mVariables, $id );
-		}
-		wfProfileOut( $fname );
-	}
-
-	/**
-	 * parse any parentheses in format ((title|part|part))
-	 * and call callbacks to get a replacement text for any found piece
-	 *
-	 * @param string $text The text to parse
-	 * @param array $callbacks rules in form:
-	 *     '{' => array(				# opening parentheses
-	 *					'end' => '}',   # closing parentheses
-	 *					'cb' => array(2 => callback,	# replacement callback to call if {{..}} is found
-	 *								  3 => callback 	# replacement callback to call if {{{..}}} is found
-	 *								  )
-	 *					)
-	 * 					'min' => 2,     # Minimum parenthesis count in cb
-	 * 					'max' => 3,     # Maximum parenthesis count in cb
-	 * @private
-	 */
-	function replace_callback ($text, $callbacks) {
-		wfProfileIn( __METHOD__ );
-		$openingBraceStack = array();	# this array will hold a stack of parentheses which are not closed yet
-		$lastOpeningBrace = -1;			# last not closed parentheses
-
-		$validOpeningBraces = implode( '', array_keys( $callbacks ) );
-
-		$i = 0;
-		while ( $i < strlen( $text ) ) {
-			# Find next opening brace, closing brace or pipe
-			if ( $lastOpeningBrace == -1 ) {
-				$currentClosing = '';
-				$search = $validOpeningBraces;
-			} else {
-				$currentClosing = $openingBraceStack[$lastOpeningBrace]['braceEnd'];
-				$search = $validOpeningBraces . '|' . $currentClosing;
-			}
-			$rule = null;
-			$i += strcspn( $text, $search, $i );
-			if ( $i < strlen( $text ) ) {
-				if ( $text[$i] == '|' ) {
-					$found = 'pipe';
-				} elseif ( $text[$i] == $currentClosing ) {
-					$found = 'close';
-				} elseif ( isset( $callbacks[$text[$i]] ) ) {
-					$found = 'open';
-					$rule = $callbacks[$text[$i]];
-				} else {
-					# Some versions of PHP have a strcspn which stops on null characters
-					# Ignore and continue
-					++$i;
-					continue;
-				}
-			} else {
-				# All done
-				break;
-			}
-
-			if ( $found == 'open' ) {
-				# found opening brace, let's add it to parentheses stack
-				$piece = array('brace' => $text[$i],
-							   'braceEnd' => $rule['end'],
-							   'title' => '',
-							   'parts' => null);
-
-				# count opening brace characters
-				$piece['count'] = strspn( $text, $piece['brace'], $i );
-				$piece['startAt'] = $piece['partStart'] = $i + $piece['count'];
-				$i += $piece['count'];
-
-				# we need to add to stack only if opening brace count is enough for one of the rules
-				if ( $piece['count'] >= $rule['min'] ) {
-					$lastOpeningBrace ++;
-					$openingBraceStack[$lastOpeningBrace] = $piece;
-				}
-			} elseif ( $found == 'close' ) {
-				# lets check if it is enough characters for closing brace
-				$maxCount = $openingBraceStack[$lastOpeningBrace]['count'];
-				$count = strspn( $text, $text[$i], $i, $maxCount );
-
-				# check for maximum matching characters (if there are 5 closing
-				# characters, we will probably need only 3 - depending on the rules)
-				$matchingCount = 0;
-				$matchingCallback = null;
-				$cbType = $callbacks[$openingBraceStack[$lastOpeningBrace]['brace']];
-				if ( $count > $cbType['max'] ) {
-					# The specified maximum exists in the callback array, unless the caller
-					# has made an error
-					$matchingCount = $cbType['max'];
-				} else {
-					# Count is less than the maximum
-					# Skip any gaps in the callback array to find the true largest match
-					# Need to use array_key_exists not isset because the callback can be null
-					$matchingCount = $count;
-					while ( $matchingCount > 0 && !array_key_exists( $matchingCount, $cbType['cb'] ) ) {
-						--$matchingCount;
-					}
-				}
-
-				if ($matchingCount <= 0) {
-					$i += $count;
-					continue;
-				}
-				$matchingCallback = $cbType['cb'][$matchingCount];
-
-				# let's set a title or last part (if '|' was found)
-				if (null === $openingBraceStack[$lastOpeningBrace]['parts']) {
-					$openingBraceStack[$lastOpeningBrace]['title'] =
-						substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'],
-						$i - $openingBraceStack[$lastOpeningBrace]['partStart']);
-				} else {
-					$openingBraceStack[$lastOpeningBrace]['parts'][] =
-						substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'],
-						$i - $openingBraceStack[$lastOpeningBrace]['partStart']);
-				}
-
-				$pieceStart = $openingBraceStack[$lastOpeningBrace]['startAt'] - $matchingCount;
-				$pieceEnd = $i + $matchingCount;
-
-				if( is_callable( $matchingCallback ) ) {
-					$cbArgs = array (
-									 'text' => substr($text, $pieceStart, $pieceEnd - $pieceStart),
-									 'title' => trim($openingBraceStack[$lastOpeningBrace]['title']),
-									 'parts' => $openingBraceStack[$lastOpeningBrace]['parts'],
-									 'lineStart' => (($pieceStart > 0) && ($text[$pieceStart-1] == "\n")),
-									 );
-					# finally we can call a user callback and replace piece of text
-					$replaceWith = call_user_func( $matchingCallback, $cbArgs );
-					$text = substr($text, 0, $pieceStart) . $replaceWith . substr($text, $pieceEnd);
-					$i = $pieceStart + strlen($replaceWith);
-				} else {
-					# null value for callback means that parentheses should be parsed, but not replaced
-					$i += $matchingCount;
-				}
-
-				# reset last opening parentheses, but keep it in case there are unused characters
-				$piece = array('brace' => $openingBraceStack[$lastOpeningBrace]['brace'],
-							   'braceEnd' => $openingBraceStack[$lastOpeningBrace]['braceEnd'],
-							   'count' => $openingBraceStack[$lastOpeningBrace]['count'],
-							   'title' => '',
-							   'parts' => null,
-							   'startAt' => $openingBraceStack[$lastOpeningBrace]['startAt']);
-				$openingBraceStack[$lastOpeningBrace--] = null;
-
-				if ($matchingCount < $piece['count']) {
-					$piece['count'] -= $matchingCount;
-					$piece['startAt'] -= $matchingCount;
-					$piece['partStart'] = $piece['startAt'];
-					# do we still qualify for any callback with remaining count?
-					$currentCbList = $callbacks[$piece['brace']]['cb'];
-					while ( $piece['count'] ) {
-						if ( array_key_exists( $piece['count'], $currentCbList ) ) {
-							$lastOpeningBrace++;
-							$openingBraceStack[$lastOpeningBrace] = $piece;
-							break;
-						}
-						--$piece['count'];
-					}
-				}
-			} elseif ( $found == 'pipe' ) {
-				# lets set a title if it is a first separator, or next part otherwise
-				if (null === $openingBraceStack[$lastOpeningBrace]['parts']) {
-					$openingBraceStack[$lastOpeningBrace]['title'] =
-						substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'],
-						$i - $openingBraceStack[$lastOpeningBrace]['partStart']);
-					$openingBraceStack[$lastOpeningBrace]['parts'] = array();
-				} else {
-					$openingBraceStack[$lastOpeningBrace]['parts'][] =
-						substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'],
-						$i - $openingBraceStack[$lastOpeningBrace]['partStart']);
-				}
-				$openingBraceStack[$lastOpeningBrace]['partStart'] = ++$i;
-			}
-		}
-
-		wfProfileOut( __METHOD__ );
-		return $text;
-	}
-
-	/**
-	 * Replace magic variables, templates, and template arguments
-	 * with the appropriate text. Templates are substituted recursively,
-	 * taking care to avoid infinite loops.
-	 *
-	 * Note that the substitution depends on value of $mOutputType:
-	 *  self::OT_WIKI: only {{subst:}} templates
-	 *  self::OT_MSG: only magic variables
-	 *  self::OT_HTML: all templates and magic variables
-	 *
-	 * @param string $tex The text to transform
-	 * @param array $args Key-value pairs representing template parameters to substitute
-	 * @param bool $argsOnly Only do argument (triple-brace) expansion, not double-brace expansion
-	 * @private
-	 */
-	function replaceVariables( $text, $args = array(), $argsOnly = false ) {
-		# Prevent too big inclusions
-		if( strlen( $text ) > $this->mOptions->getMaxIncludeSize() ) {
-			return $text;
-		}
-
-		$fname = __METHOD__ /*. '-L' . count( $this->mArgStack )*/;
-		wfProfileIn( $fname );
-
-		# This function is called recursively. To keep track of arguments we need a stack:
-		array_push( $this->mArgStack, $args );
-
-		$braceCallbacks = array();
-		if ( !$argsOnly ) {
-			$braceCallbacks[2] = array( &$this, 'braceSubstitution' );
-		}
-		if ( $this->mOutputType != self::OT_MSG ) {
-			$braceCallbacks[3] = array( &$this, 'argSubstitution' );
-		}
-		if ( $braceCallbacks ) {
-			$callbacks = array(
-				'{' => array(
-					'end' => '}',
-					'cb' => $braceCallbacks,
-					'min' => $argsOnly ? 3 : 2,
-					'max' => isset( $braceCallbacks[3] ) ? 3 : 2,
-				),
-				'[' => array(
-					'end' => ']',
-					'cb' => array(2=>null),
-					'min' => 2,
-					'max' => 2,
-				)
-			);
-			$text = $this->replace_callback ($text, $callbacks);
-
-			array_pop( $this->mArgStack );
-		}
-		wfProfileOut( $fname );
-		return $text;
-	}
-
-	/**
-	 * Replace magic variables
-	 * @private
-	 */
-	function variableSubstitution( $matches ) {
-		global $wgContLang;
-		$fname = 'Parser::variableSubstitution';
-		$varname = $wgContLang->lc($matches[1]);
-		wfProfileIn( $fname );
-		$skip = false;
-		if ( $this->mOutputType == self::OT_WIKI ) {
-			# Do only magic variables prefixed by SUBST
-			$mwSubst =& MagicWord::get( 'subst' );
-			if (!$mwSubst->matchStartAndRemove( $varname ))
-				$skip = true;
-			# Note that if we don't substitute the variable below,
-			# we don't remove the {{subst:}} magic word, in case
-			# it is a template rather than a magic variable.
-		}
-		if ( !$skip && array_key_exists( $varname, $this->mVariables ) ) {
-			$id = $this->mVariables[$varname];
-			# Now check if we did really match, case sensitive or not
-			$mw =& MagicWord::get( $id );
-			if ($mw->match($matches[1])) {
-				$text = $this->getVariableValue( $id );
-				if (MagicWord::getCacheTTL($id)>-1)
-					$this->mOutput->mContainsOldMagic = true;
-			} else {
-				$text = $matches[0];
-			}
-		} else {
-			$text = $matches[0];
-		}
-		wfProfileOut( $fname );
-		return $text;
-	}
-
-
-	/// Clean up argument array - refactored in 1.9 so parserfunctions can use it, too.
-	static function createAssocArgs( $args ) {
-		$assocArgs = array();
-		$index = 1;
-		foreach( $args as $arg ) {
-			$eqpos = strpos( $arg, '=' );
-			if ( $eqpos === false ) {
-				$assocArgs[$index++] = $arg;
-			} else {
-				$name = trim( substr( $arg, 0, $eqpos ) );
-				$value = trim( substr( $arg, $eqpos+1 ) );
-				if ( $value === false ) {
-					$value = '';
-				}
-				if ( $name !== false ) {
-					$assocArgs[$name] = $value;
-				}
-			}
-		}
-
-		return $assocArgs;
-	}
-
-	/**
-	 * Return the text of a template, after recursively
-	 * replacing any variables or templates within the template.
-	 *
-	 * @param array $piece The parts of the template
-	 *  $piece['text']: matched text
-	 *  $piece['title']: the title, i.e. the part before the |
-	 *  $piece['parts']: the parameter array
-	 * @return string the text of the template
-	 * @private
-	 */
-	function braceSubstitution( $piece ) {
-		global $wgContLang, $wgLang, $wgAllowDisplayTitle, $wgNonincludableNamespaces;
-		$fname = __METHOD__ /*. '-L' . count( $this->mArgStack )*/;
-		wfProfileIn( $fname );
-		wfProfileIn( __METHOD__.'-setup' );
-
-		# Flags
-		$found = false;             # $text has been filled
-		$nowiki = false;            # wiki markup in $text should be escaped
-		$noparse = false;           # Unsafe HTML tags should not be stripped, etc.
-		$noargs = false;            # Don't replace triple-brace arguments in $text
-		$replaceHeadings = false;   # Make the edit section links go to the template not the article
-                $headingOffset = 0;         # Skip headings when number, to account for those that weren't transcluded.
-		$isHTML = false;            # $text is HTML, armour it against wikitext transformation
-		$forceRawInterwiki = false; # Force interwiki transclusion to be done in raw mode not rendered
-
-		# Title object, where $text came from
-		$title = NULL;
-
-		$linestart = '';
-
-
-		# $part1 is the bit before the first |, and must contain only title characters
-		# $args is a list of arguments, starting from index 0, not including $part1
-
-		$titleText = $part1 = $piece['title'];
-		# If the third subpattern matched anything, it will start with |
-
-		if (null == $piece['parts']) {
-			$replaceWith = $this->variableSubstitution (array ($piece['text'], $piece['title']));
-			if ($replaceWith != $piece['text']) {
-				$text = $replaceWith;
-				$found = true;
-				$noparse = true;
-				$noargs = true;
-			}
-		}
-
-		$args = (null == $piece['parts']) ? array() : $piece['parts'];
-		wfProfileOut( __METHOD__.'-setup' );
-
-		# SUBST
-		wfProfileIn( __METHOD__.'-modifiers' );
-		if ( !$found ) {
-			$mwSubst =& MagicWord::get( 'subst' );
-			if ( $mwSubst->matchStartAndRemove( $part1 ) xor $this->ot['wiki'] ) {
-				# One of two possibilities is true:
-				# 1) Found SUBST but not in the PST phase
-				# 2) Didn't find SUBST and in the PST phase
-				# In either case, return without further processing
-				$text = $piece['text'];
-				$found = true;
-				$noparse = true;
-				$noargs = true;
-			}
-		}
-
-		# MSG, MSGNW and RAW
-		if ( !$found ) {
-			# Check for MSGNW:
-			$mwMsgnw =& MagicWord::get( 'msgnw' );
-			if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
-				$nowiki = true;
-			} else {
-				# Remove obsolete MSG:
-				$mwMsg =& MagicWord::get( 'msg' );
-				$mwMsg->matchStartAndRemove( $part1 );
-			}
-
-			# Check for RAW:
-			$mwRaw =& MagicWord::get( 'raw' );
-			if ( $mwRaw->matchStartAndRemove( $part1 ) ) {
-				$forceRawInterwiki = true;
-			}
-		}
-		wfProfileOut( __METHOD__.'-modifiers' );
-
-		//save path level before recursing into functions & templates.
-		$lastPathLevel = $this->mTemplatePath;
-
-		# Parser functions
-		if ( !$found ) {
-			wfProfileIn( __METHOD__ . '-pfunc' );
-
-			$colonPos = strpos( $part1, ':' );
-			if ( $colonPos !== false ) {
-				# Case sensitive functions
-				$function = substr( $part1, 0, $colonPos );
-				if ( isset( $this->mFunctionSynonyms[1][$function] ) ) {
-					$function = $this->mFunctionSynonyms[1][$function];
-				} else {
-					# Case insensitive functions
-					$function = strtolower( $function );
-					if ( isset( $this->mFunctionSynonyms[0][$function] ) ) {
-						$function = $this->mFunctionSynonyms[0][$function];
-					} else {
-						$function = false;
-					}
-				}
-				if ( $function ) {
-					$funcArgs = array_map( 'trim', $args );
-					$funcArgs = array_merge( array( &$this, trim( substr( $part1, $colonPos + 1 ) ) ), $funcArgs );
-					$result = call_user_func_array( $this->mFunctionHooks[$function], $funcArgs );
-					$found = true;
-
-					// The text is usually already parsed, doesn't need triple-brace tags expanded, etc.
-					//$noargs = true;
-					//$noparse = true;
-
-					if ( is_array( $result ) ) {
-						if ( isset( $result[0] ) ) {
-							$text = $linestart . $result[0];
-							unset( $result[0] );
-						}
-
-						// Extract flags into the local scope
-						// This allows callers to set flags such as nowiki, noparse, found, etc.
-						extract( $result );
-					} else {
-						$text = $linestart . $result;
-					}
-				}
-			}
-			wfProfileOut( __METHOD__ . '-pfunc' );
-		}
-
-		# Template table test
-
-		# Did we encounter this template already? If yes, it is in the cache
-		# and we need to check for loops.
-		if ( !$found && isset( $this->mTemplates[$piece['title']] ) ) {
-			$found = true;
-
-			# Infinite loop test
-			if ( isset( $this->mTemplatePath[$part1] ) ) {
-				$noparse = true;
-				$noargs = true;
-				$found = true;
-				$text = $linestart .
-					"[[$part1]]";
-				wfDebug( __METHOD__.": template loop broken at '$part1'\n" );
-			} else {
-				# set $text to cached message.
-				$text = $linestart . $this->mTemplates[$piece['title']];
-				#treat title for cached page the same as others
-				$ns = NS_TEMPLATE;
-				$subpage = '';
-				$part1 = $this->maybeDoSubpageLink( $part1, $subpage );
-				if ($subpage !== '') {
-				  $ns = $this->mTitle->getNamespace();
-				}
-				$title = Title::newFromText( $part1, $ns );
-				//used by include size checking
-				$titleText = $title->getPrefixedText();
-				//used by edit section links
-				$replaceHeadings = true;
-
-			}
-		}
-
-		# Load from database
-		if ( !$found ) {
-			wfProfileIn( __METHOD__ . '-loadtpl' );
-			$ns = NS_TEMPLATE;
-			# declaring $subpage directly in the function call
-			# does not work correctly with references and breaks
-			# {{/subpage}}-style inclusions
-			$subpage = '';
-			$part1 = $this->maybeDoSubpageLink( $part1, $subpage );
-			if ($subpage !== '') {
-				$ns = $this->mTitle->getNamespace();
-			}
-			$title = Title::newFromText( $part1, $ns );
-
-
-			if ( !is_null( $title ) ) {
-				$titleText = $title->getPrefixedText();
-				# Check for language variants if the template is not found
-				if($wgContLang->hasVariants() && $title->getArticleID() == 0){
-					$wgContLang->findVariantLink($part1, $title);
-				}
-
-				if ( !$title->isExternal() ) {
-					if ( $title->getNamespace() == NS_SPECIAL && $this->mOptions->getAllowSpecialInclusion() && $this->ot['html'] ) {
-						$text = SpecialPage::capturePath( $title );
-						if ( is_string( $text ) ) {
-							$found = true;
-							$noparse = true;
-							$noargs = true;
-							$isHTML = true;
-							$this->disableCache();
-						}
-					} else if ( $wgNonincludableNamespaces && in_array( $title->getNamespace(), $wgNonincludableNamespaces ) ) {
-						$found = false; //access denied
-						wfDebug( "$fname: template inclusion denied for " . $title->getPrefixedDBkey() );
-					} else {
-						list($articleContent,$title) = $this->fetchTemplateAndtitle( $title );
-						if ( $articleContent !== false ) {
-							$found = true;
-							$text = $articleContent;
-							$replaceHeadings = true;
-						}
-					}
-
-					# If the title is valid but undisplayable, make a link to it
-					if ( !$found && ( $this->ot['html'] || $this->ot['pre'] ) ) {
-						$text = "[[:$titleText]]";
-						$found = true;
-					}
-				} elseif ( $title->isTrans() ) {
-					// Interwiki transclusion
-					if ( $this->ot['html'] && !$forceRawInterwiki ) {
-						$text = $this->interwikiTransclude( $title, 'render' );
-						$isHTML = true;
-						$noparse = true;
-					} else {
-						$text = $this->interwikiTransclude( $title, 'raw' );
-						$replaceHeadings = true;
-					}
-					$found = true;
-				}
-
-				# Template cache array insertion
-				# Use the original $piece['title'] not the mangled $part1, so that
-				# modifiers such as RAW: produce separate cache entries
-				if( $found ) {
-					if( $isHTML ) {
-						// A special page; don't store it in the template cache.
-					} else {
-						$this->mTemplates[$piece['title']] = $text;
-					}
-					$text = $linestart . $text;
-				}
-			}
-			wfProfileOut( __METHOD__ . '-loadtpl' );
-		}
-
-		if ( $found && !$this->incrementIncludeSize( 'pre-expand', strlen( $text ) ) ) {
-			# Error, oversize inclusion
-			$text = $linestart .
-				"[[$titleText]]";
-			$noparse = true;
-			$noargs = true;
-		}
-
-		# Recursive parsing, escaping and link table handling
-		# Only for HTML output
-		if ( $nowiki && $found && ( $this->ot['html'] || $this->ot['pre'] ) ) {
-			$text = wfEscapeWikiText( $text );
-		} elseif ( !$this->ot['msg'] && $found ) {
-			if ( $noargs ) {
-				$assocArgs = array();
-			} else {
-				# Clean up argument array
-				$assocArgs = self::createAssocArgs($args);
-				# Add a new element to the templace recursion path
-				$this->mTemplatePath[$part1] = 1;
-			}
-
-			if ( !$noparse ) {
-				# If there are any  tags, only include them
-				if ( in_string( '', $text ) && in_string( '', $text ) ) {
-					$replacer = new OnlyIncludeReplacer;
-					StringUtils::delimiterReplaceCallback( '', '',
-						array( &$replacer, 'replace' ), $text );
-					$text = $replacer->output;
-				}
-				# Remove  sections and  tags
-				$text = StringUtils::delimiterReplace( '', '', '', $text );
-				$text = strtr( $text, array( '' => '' , '' => '' ) );
-
-				if( $this->ot['html'] || $this->ot['pre'] ) {
-					# Strip , 
    , etc.
-					$text = $this->strip( $text, $this->mStripState );
-					if ( $this->ot['html'] ) {
-						$text = Sanitizer::removeHTMLtags( $text, array( &$this, 'replaceVariables' ), $assocArgs );
-					} elseif ( $this->ot['pre'] && $this->mOptions->getRemoveComments() ) {
-						$text = Sanitizer::removeHTMLcomments( $text );
-					}
-				}
-				$text = $this->replaceVariables( $text, $assocArgs );
-
-				# If the template begins with a table or block-level
-				# element, it should be treated as beginning a new line.
-				if (!$piece['lineStart'] && preg_match('/^(?:{\\||:|;|#|\*)/', $text)) /*}*/{
-					$text = "\n" . $text;
-				}
-			} elseif ( !$noargs ) {
-				# $noparse and !$noargs
-				# Just replace the arguments, not any double-brace items
-				# This is used for rendered interwiki transclusion
-				$text = $this->replaceVariables( $text, $assocArgs, true );
-			}
-		}
-		# Prune lower levels off the recursion check path
-		$this->mTemplatePath = $lastPathLevel;
-
-		if ( $found && !$this->incrementIncludeSize( 'post-expand', strlen( $text ) ) ) {
-			# Error, oversize inclusion
-			$text = $linestart .
-				"[[$titleText]]";
-			$noparse = true;
-			$noargs = true;
-		}
-
-		if ( !$found ) {
-			wfProfileOut( $fname );
-			return $piece['text'];
-		} else {
-			wfProfileIn( __METHOD__ . '-placeholders' );
-			if ( $isHTML ) {
-				# Replace raw HTML by a placeholder
-				# Add a blank line preceding, to prevent it from mucking up
-				# immediately preceding headings
-				$text = "\n\n" . $this->insertStripItem( $text, $this->mStripState );
-			} else {
-				# replace ==section headers==
-				# XXX this needs to go away once we have a better parser.
-				if ( !$this->ot['wiki'] && !$this->ot['pre'] && $replaceHeadings ) {
-					if( !is_null( $title ) )
-						$encodedname = base64_encode($title->getPrefixedDBkey());
-					else
-						$encodedname = base64_encode("");
-					$m = preg_split('/(^={1,6}.*?={1,6}\s*?$)/m', $text, -1,
-						PREG_SPLIT_DELIM_CAPTURE);
-					$text = '';
-					$nsec = $headingOffset;
-
-					for( $i = 0; $i < count($m); $i += 2 ) {
-						$text .= $m[$i];
-						if (!isset($m[$i + 1]) || $m[$i + 1] == "") continue;
-						$hl = $m[$i + 1];
-						if( strstr($hl, "" . $m2[3];
-
-						$nsec++;
-					}
-				}
-			}
-			wfProfileOut( __METHOD__ . '-placeholders' );
-		}
-
-		# Prune lower levels off the recursion check path
-		$this->mTemplatePath = $lastPathLevel;
-
-		if ( !$found ) {
-			wfProfileOut( $fname );
-			return $piece['text'];
-		} else {
-			wfProfileOut( $fname );
-			return $text;
-		}
-	}
-
-	/**
-	 * Fetch the unparsed text of a template and register a reference to it.
-	 */
-	function fetchTemplateAndTitle( $title ) {
-		$templateCb = $this->mOptions->getTemplateCallback();
-		$stuff = call_user_func( $templateCb, $title, $this );
-		$text = $stuff['text'];
-		$finalTitle = isset( $stuff['finalTitle'] ) ? $stuff['finalTitle'] : $title;
-		if ( isset( $stuff['deps'] ) ) {
-			foreach ( $stuff['deps'] as $dep ) {
-				$this->mOutput->addTemplate( $dep['title'], $dep['page_id'], $dep['rev_id'] );
-			}
-		}
-		return array($text,$finalTitle);
-	}
-
-	function fetchTemplate( $title ) {
-		$rv = $this->fetchTemplateAndtitle($title);
-		return $rv[0];
-	}
-
-	/**
-	 * Static function to get a template
-	 * Can be overridden via ParserOptions::setTemplateCallback().
-	 *
-	 * Returns an associative array:
-	 *    text          The unparsed template text
-	 *    finalTitle    (Optional) The title after following redirects
-	 *    deps          (Optional) An array of associative array dependencies:
-	 *                       title:    The dependency title, to be registered in templatelinks
-	 *                       page_id:  The page_id of the title
-	 *                       rev_id:   The revision ID loaded
-	 */
-	static function statelessFetchTemplate( $title, $parser=false ) {
-		$text = $skip = false;
-		$finalTitle = $title;
-		$deps = array();
-
-		// Loop to fetch the article, with up to 1 redirect
-		for ( $i = 0; $i < 2 && is_object( $title ); $i++ ) {
-			# Give extensions a chance to select the revision instead
-			$id = false; // Assume current
-			wfRunHooks( 'BeforeParserFetchTemplateAndtitle', array( $parser, &$title, &$skip, &$id ) );
-
-			if( $skip ) {
-				$text = false;
-				$deps[] = array(
-					'title' => $title,
-					'page_id' => $title->getArticleID(),
-					'rev_id' => null );
-				break;
-			}
-			$rev = $id ? Revision::newFromId( $id ) : Revision::newFromTitle( $title );
-			$rev_id = $rev ? $rev->getId() : 0;
-
-			$deps[] = array(
-				'title' => $title,
-				'page_id' => $title->getArticleID(),
-				'rev_id' => $rev_id );
-
-			if( $rev ) {
-				$text = $rev->getText();
-			} elseif( $title->getNamespace() == NS_MEDIAWIKI ) {
-				global $wgLang;
-				$message = $wgLang->lcfirst( $title->getText() );
-				$text = wfMsgForContentNoTrans( $message );
-				if( wfEmptyMsg( $message, $text ) ) {
-					$text = false;
-					break;
-				}
-			} else {
-				break;
-			}
-			if ( $text === false ) {
-				break;
-			}
-			// Redirect?
-			$finalTitle = $title;
-			$title = Title::newFromRedirect( $text );
-		}
-		return array(
-			'text' => $text,
-			'finalTitle' => $finalTitle,
-			'deps' => $deps );
-	}
-
-	/**
-	 * Transclude an interwiki link.
-	 */
-	function interwikiTransclude( $title, $action ) {
-		global $wgEnableScaryTranscluding;
-
-		if (!$wgEnableScaryTranscluding)
-			return wfMsg('scarytranscludedisabled');
-
-		$url = $title->getFullUrl( "action=$action" );
-
-		if (strlen($url) > 255)
-			return wfMsg('scarytranscludetoolong');
-		return $this->fetchScaryTemplateMaybeFromCache($url);
-	}
-
-	function fetchScaryTemplateMaybeFromCache($url) {
-		global $wgTranscludeCacheExpiry;
-		$dbr = wfGetDB(DB_SLAVE);
-		$obj = $dbr->selectRow('transcache', array('tc_time', 'tc_contents'),
-				array('tc_url' => $url));
-		if ($obj) {
-			$time = $obj->tc_time;
-			$text = $obj->tc_contents;
-			if ($time && time() < $time + $wgTranscludeCacheExpiry ) {
-				return $text;
-			}
-		}
-
-		$text = Http::get($url);
-		if (!$text)
-			return wfMsg('scarytranscludefailed', $url);
-
-		$dbw = wfGetDB(DB_MASTER);
-		$dbw->replace('transcache', array('tc_url'), array(
-			'tc_url' => $url,
-			'tc_time' => time(),
-			'tc_contents' => $text));
-		return $text;
-	}
-
-
-	/**
-	 * Triple brace replacement -- used for template arguments
-	 * @private
-	 */
-	function argSubstitution( $matches ) {
-		$arg = trim( $matches['title'] );
-		$text = $matches['text'];
-		$inputArgs = end( $this->mArgStack );
-
-		if ( array_key_exists( $arg, $inputArgs ) ) {
-			$text = $inputArgs[$arg];
-		} else if (($this->mOutputType == self::OT_HTML || $this->mOutputType == self::OT_PREPROCESS ) &&
-		null != $matches['parts'] && count($matches['parts']) > 0) {
-			$text = $matches['parts'][0];
-		}
-		if ( !$this->incrementIncludeSize( 'arg', strlen( $text ) ) ) {
-			$text = $matches['text'] .
-				'';
-		}
-
-		return $text;
-	}
-
-	/**
-	 * Increment an include size counter
-	 *
-	 * @param string $type The type of expansion
-	 * @param integer $size The size of the text
-	 * @return boolean False if this inclusion would take it over the maximum, true otherwise
-	 */
-	function incrementIncludeSize( $type, $size ) {
-		if ( $this->mIncludeSizes[$type] + $size > $this->mOptions->getMaxIncludeSize() ) {
-			return false;
-		} else {
-			$this->mIncludeSizes[$type] += $size;
-			return true;
-		}
-	}
-
-	/**
-	 * Detect __NOGALLERY__ magic word and set a placeholder
-	 */
-	function stripNoGallery( &$text ) {
-		# if the string __NOGALLERY__ (not case-sensitive) occurs in the HTML,
-		# do not add TOC
-		$mw = MagicWord::get( 'nogallery' );
-		$this->mOutput->mNoGallery = $mw->matchAndRemove( $text ) ;
-	}
-
-	/**
-	 * Find the first __TOC__ magic word and set a 
-	 * placeholder that will then be replaced by the real TOC in
-	 * ->formatHeadings, this works because at this points real
-	 * comments will have already been discarded by the sanitizer.
-	 *
-	 * Any additional __TOC__ magic words left over will be discarded
-	 * as there can only be one TOC on the page.
-	 */
-	function stripToc( $text ) {
-		# if the string __NOTOC__ (not case-sensitive) occurs in the HTML,
-		# do not add TOC
-		$mw = MagicWord::get( 'notoc' );
-		if( $mw->matchAndRemove( $text ) ) {
-			$this->mShowToc = false;
-		}
-
-		$mw = MagicWord::get( 'toc' );
-		if( $mw->match( $text ) ) {
-			$this->mShowToc = true;
-			$this->mForceTocPosition = true;
-
-			// Set a placeholder. At the end we'll fill it in with the TOC.
-			$text = $mw->replace( '', $text, 1 );
-
-			// Only keep the first one.
-			$text = $mw->replace( '', $text );
-		}
-		return $text;
-	}
-
-	/**
-	 * This function accomplishes several tasks:
-	 * 1) Auto-number headings if that option is enabled
-	 * 2) Add an [edit] link to sections for users who have enabled the option and can edit the page
-	 * 3) Add a Table of contents on the top for users who have enabled the option
-	 * 4) Auto-anchor headings
-	 *
-	 * It loops through all headlines, collects the necessary data, then splits up the
-	 * string and re-inserts the newly formatted headlines.
-	 *
-	 * @param string $text
-	 * @param boolean $isMain
-	 * @private
-	 */
-	function formatHeadings( $text, $isMain=true ) {
-		global $wgMaxTocLevel, $wgContLang;
-
-		$doNumberHeadings = $this->mOptions->getNumberHeadings();
-		if( !$this->mTitle->quickUserCan( 'edit' ) ) {
-			$showEditLink = 0;
-		} else {
-			$showEditLink = $this->mOptions->getEditSection();
-		}
-
-		# Inhibit editsection links if requested in the page
-		$esw =& MagicWord::get( 'noeditsection' );
-		if( $esw->matchAndRemove( $text ) ) {
-			$showEditLink = 0;
-		}
-
-		# Get all headlines for numbering them and adding funky stuff like [edit]
-		# links - this is for later, but we need the number of headlines right now
-		$matches = array();
-		$numMatches = preg_match_all( '/[1-6])(?P.*?'.'>)(?P
    .*?)<\/H[1-6] *>/i', $text, $matches );
-
-		# if there are fewer than 4 headlines in the article, do not show TOC
-		# unless it's been explicitly enabled.
-		$enoughToc = $this->mShowToc &&
-			(($numMatches >= 4) || $this->mForceTocPosition);
-
-		# Allow user to stipulate that a page should have a "new section"
-		# link added via __NEWSECTIONLINK__
-		$mw =& MagicWord::get( 'newsectionlink' );
-		if( $mw->matchAndRemove( $text ) )
-			$this->mOutput->setNewSection( true );
-
-		# if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
-		# override above conditions and always show TOC above first header
-		$mw =& MagicWord::get( 'forcetoc' );
-		if ($mw->matchAndRemove( $text ) ) {
-			$this->mShowToc = true;
-			$enoughToc = true;
-		}
-
-		# We need this to perform operations on the HTML
-		$sk = $this->mOptions->getSkin();
-
-		# headline counter
-		$headlineCount = 0;
-		$sectionCount = 0; # headlineCount excluding template sections
-		$numVisible = 0;
-
-		# Ugh .. the TOC should have neat indentation levels which can be
-		# passed to the skin functions. These are determined here
-		$toc = '';
-		$full = '';
-		$head = array();
-		$sublevelCount = array();
-		$levelCount = array();
-		$toclevel = 0;
-		$level = 0;
-		$prevlevel = 0;
-		$toclevel = 0;
-		$prevtoclevel = 0;
-		$tocraw = array();
-
-		foreach( $matches[3] as $headline ) {
-			$istemplate = 0;
-			$templatetitle = '';
-			$templatesection = 0;
-			$numbering = '';
-			$mat = array();
-			if (preg_match("//", $headline, $mat)) {
-				$istemplate = 1;
-				$templatetitle = base64_decode($mat[1]);
-				$templatesection = 1 + (int)base64_decode($mat[2]);
-				$headline = preg_replace("//", "", $headline);
-			}
-
-			if( $toclevel ) {
-				$prevlevel = $level;
-				$prevtoclevel = $toclevel;
-			}
-			$level = $matches[1][$headlineCount];
-
-			if( $doNumberHeadings || $enoughToc ) {
-
-				if ( $level > $prevlevel ) {
-					# Increase TOC level
-					$toclevel++;
-					$sublevelCount[$toclevel] = 0;
-					if( $toclevel<$wgMaxTocLevel ) {
-						$prevtoclevel = $toclevel;
-						$toc .= $sk->tocIndent();
-						$numVisible++;
-					}
-				}
-				elseif ( $level < $prevlevel && $toclevel > 1 ) {
-					# Decrease TOC level, find level to jump to
-
-					if ( $toclevel == 2 && $level <= $levelCount[1] ) {
-						# Can only go down to level 1
-						$toclevel = 1;
-					} else {
-						for ($i = $toclevel; $i > 0; $i--) {
-							if ( $levelCount[$i] == $level ) {
-								# Found last matching level
-								$toclevel = $i;
-								break;
-							}
-							elseif ( $levelCount[$i] < $level ) {
-								# Found first matching level below current level
-								$toclevel = $i + 1;
-								break;
-							}
-						}
-					}
-					if( $toclevel<$wgMaxTocLevel ) {
-						if($prevtoclevel < $wgMaxTocLevel) {
-							# Unindent only if the previous toc level was shown :p
-							$toc .= $sk->tocUnindent( $prevtoclevel - $toclevel );
-						} else {
-							$toc .= $sk->tocLineEnd();
-						}
-					}
-				}
-				else {
-					# No change in level, end TOC line
-					if( $toclevel<$wgMaxTocLevel ) {
-						$toc .= $sk->tocLineEnd();
-					}
-				}
-
-				$levelCount[$toclevel] = $level;
-
-				# count number of headlines for each level
-				@$sublevelCount[$toclevel]++;
-				$dot = 0;
-				for( $i = 1; $i <= $toclevel; $i++ ) {
-					if( !empty( $sublevelCount[$i] ) ) {
-						if( $dot ) {
-							$numbering .= '.';
-						}
-						$numbering .= $wgContLang->formatNum( $sublevelCount[$i] );
-						$dot = 1;
-					}
-				}
-			}
-
-			# The canonized header is a version of the header text safe to use for links
-			# Avoid insertion of weird stuff like  by expanding the relevant sections
-			$canonized_headline = $this->mStripState->unstripBoth( $headline );
-
-			# Remove link placeholders by the link text.
-			#     
-			# turns into
-			#     link text with suffix
-			$canonized_headline = preg_replace( '//e',
-							    "\$this->mLinkHolders['texts'][\$1]",
-							    $canonized_headline );
-			$canonized_headline = preg_replace( '//e',
-							    "\$this->mInterwikiLinkHolders['texts'][\$1]",
-							    $canonized_headline );
-
-			# Strip out HTML (other than plain  and : bug 8393)
-			$tocline = preg_replace(
-				array( '#<(?!/?(sup|sub)).*?'.'>#', '#<(/?(sup|sub)).*?'.'>#' ),
-				array( '',                          '<$1>'),
-				$canonized_headline
-			);
-			$tocline = trim( $tocline );
-
-			# For the anchor, strip out HTML-y stuff period
-			$canonized_headline = preg_replace( '/<.*?'.'>/', '', $canonized_headline );
-			$canonized_headline = trim( $canonized_headline );
-
-			# Save headline for section edit hint before it's escaped
-			$headline_hint = $canonized_headline;
-			$canonized_headline = Sanitizer::escapeId( $canonized_headline );
-			$refers[$headlineCount] = $canonized_headline;
-
-			# count how many in assoc. array so we can track dupes in anchors
-			isset( $refers[$canonized_headline] ) ? $refers[$canonized_headline]++ : $refers[$canonized_headline] = 1;
-			$refcount[$headlineCount]=$refers[$canonized_headline];
-
-			# Don't number the heading if it is the only one (looks silly)
-			if( $doNumberHeadings && count( $matches[3] ) > 1) {
-				# the two are different if the line contains a link
-				$headline=$numbering . ' ' . $headline;
-			}
-
-			# Create the anchor for linking from the TOC to the section
-			$anchor = $canonized_headline;
-			if($refcount[$headlineCount] > 1 ) {
-				$anchor .= '_' . $refcount[$headlineCount];
-			}
-			if( $enoughToc && ( !isset($wgMaxTocLevel) || $toclevel<$wgMaxTocLevel ) ) {
-				$toc .= $sk->tocLine($anchor, $tocline, $numbering, $toclevel);
-				$tocraw[] = array( 'toclevel' => $toclevel, 'level' => $level, 'line' => $tocline, 'number' => $numbering );
-			}
-			# give headline the correct  tag
-			if( $showEditLink && ( !$istemplate || $templatetitle !== "" ) ) {
-				if( $istemplate )
-					$editlink = $sk->editSectionLinkForOther($templatetitle, $templatesection);
-				else
-					$editlink = $sk->editSectionLink($this->mTitle, $sectionCount+1, $headline_hint);
-			} else {
-				$editlink = '';
-			}
-			$head[$headlineCount] = $sk->makeHeadline( $level, $matches['attrib'][$headlineCount], $anchor, $headline, $editlink );
-
-			$headlineCount++;
-			if( !$istemplate )
-				$sectionCount++;
-		}
-
-		$this->mOutput->setSections( $tocraw );
-
-		# Never ever show TOC if no headers
-		if( $numVisible < 1 ) {
-			$enoughToc = false;
-		}
-
-		if( $enoughToc ) {
-			if( $prevtoclevel > 0 && $prevtoclevel < $wgMaxTocLevel ) {
-				$toc .= $sk->tocUnindent( $prevtoclevel - 1 );
-			}
-			$toc = $sk->tocList( $toc );
-		}
-
-		# split up and insert constructed headlines
-
-		$blocks = preg_split( '/.*?<\/H[1-6]>/i', $text );
-		$i = 0;
-
-		foreach( $blocks as $block ) {
-			if( $showEditLink && $headlineCount > 0 && $i == 0 && $block != "\n" ) {
-				# This is the [edit] link that appears for the top block of text when
-				# section editing is enabled
-
-				# Disabled because it broke block formatting
-				# For example, a bullet point in the top line
-				# $full .= $sk->editSectionLink(0);
-			}
-			$full .= $block;
-			if( $enoughToc && !$i && $isMain && !$this->mForceTocPosition ) {
-				# Top anchor now in skin
-				$full = $full.$toc;
-			}
-
-			if( !empty( $head[$i] ) ) {
-				$full .= $head[$i];
-			}
-			$i++;
-		}
-		if( $this->mForceTocPosition ) {
-			return str_replace( '', $toc, $full );
-		} else {
-			return $full;
-		}
-	}
-
-	/**
-	 * Transform wiki markup when saving a page by doing \r\n -> \n
-	 * conversion, substitting signatures, {{subst:}} templates, etc.
-	 *
-	 * @param string $text the text to transform
-	 * @param Title &$title the Title object for the current article
-	 * @param User &$user the User object describing the current user
-	 * @param ParserOptions $options parsing options
-	 * @param bool $clearState whether to clear the parser state first
-	 * @return string the altered wiki markup
-	 * @public
-	 */
-	function preSaveTransform( $text, &$title, $user, $options, $clearState = true ) {
-		$this->mOptions = $options;
-		$this->mTitle =& $title;
-		$this->setOutputType( self::OT_WIKI );
-
-		if ( $clearState ) {
-			$this->clearState();
-		}
-
-		$stripState = new StripState;
-		$pairs = array(
-			"\r\n" => "\n",
-		);
-		$text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text );
-		$text = $this->strip( $text, $stripState, true, array( 'gallery' ) );
-		$text = $this->pstPass2( $text, $stripState, $user );
-		$text = $stripState->unstripBoth( $text );
-		return $text;
-	}
-
-	/**
-	 * Pre-save transform helper function
-	 * @private
-	 */
-	function pstPass2( $text, &$stripState, $user ) {
-		global $wgContLang, $wgLocaltimezone;
-
-		/* Note: This is the timestamp saved as hardcoded wikitext to
-		 * the database, we use $wgContLang here in order to give
-		 * everyone the same signature and use the default one rather
-		 * than the one selected in each user's preferences.
-		 */
-		if ( isset( $wgLocaltimezone ) ) {
-			$oldtz = getenv( 'TZ' );
-			putenv( 'TZ='.$wgLocaltimezone );
-		}
-		$d = $wgContLang->timeanddate( date( 'YmdHis' ), false, false) .
-		  ' (' . date( 'T' ) . ')';
-		if ( isset( $wgLocaltimezone ) ) {
-			putenv( 'TZ='.$oldtz );
-		}
-
-		# Variable replacement
-		# Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
-		$text = $this->replaceVariables( $text );
-
-		# Strip out  etc. added via replaceVariables
-		$text = $this->strip( $text, $stripState, false, array( 'gallery' ) );
-
-		# Signatures
-		$sigText = $this->getUserSig( $user );
-		$text = strtr( $text, array(
-			'~~~~~' => $d,
-			'~~~~' => "$sigText $d",
-			'~~~' => $sigText
-		) );
-
-		# Context links: [[|name]] and [[name (context)|]]
-		#
-		global $wgLegalTitleChars;
-		$tc = "[$wgLegalTitleChars]";
-		$nc = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii!
-
-		$p1 = "/\[\[(:?$nc+:|:|)($tc+?)( \\($tc+\\))\\|]]/";		# [[ns:page (context)|]]
-		$p3 = "/\[\[(:?$nc+:|:|)($tc+?)( \\($tc+\\)|)(, $tc+|)\\|]]/";	# [[ns:page (context), context|]]
-		$p2 = "/\[\[\\|($tc+)]]/";					# [[|page]]
-
-		# try $p1 first, to turn "[[A, B (C)|]]" into "[[A, B (C)|A, B]]"
-		$text = preg_replace( $p1, '[[\\1\\2\\3|\\2]]', $text );
-		$text = preg_replace( $p3, '[[\\1\\2\\3\\4|\\2]]', $text );
-
-		$t = $this->mTitle->getText();
-		$m = array();
-		if ( preg_match( "/^($nc+:|)$tc+?( \\($tc+\\))$/", $t, $m ) ) {
-			$text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
-		} elseif ( preg_match( "/^($nc+:|)$tc+?(, $tc+|)$/", $t, $m ) && '' != "$m[1]$m[2]" ) {
-			$text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
-		} else {
-			# if there's no context, don't bother duplicating the title
-			$text = preg_replace( $p2, '[[\\1]]', $text );
-		}
-
-		# Trim trailing whitespace
-		$text = rtrim( $text );
-
-		return $text;
-	}
-
-	/**
-	 * Fetch the user's signature text, if any, and normalize to
-	 * validated, ready-to-insert wikitext.
-	 *
-	 * @param User $user
-	 * @return string
-	 * @private
-	 */
-	function getUserSig( &$user ) {
-		global $wgMaxSigChars;
-
-		$username = $user->getName();
-		$nickname = $user->getOption( 'nickname' );
-		$nickname = $nickname === '' ? $username : $nickname;
-
-		if( mb_strlen( $nickname ) > $wgMaxSigChars ) {
-			$nickname = $username;
-			wfDebug( __METHOD__ . ": $username has overlong signature.\n" );
-		} elseif( $user->getBoolOption( 'fancysig' ) !== false ) {
-			# Sig. might contain markup; validate this
-			if( $this->validateSig( $nickname ) !== false ) {
-				# Validated; clean up (if needed) and return it
-				return $this->cleanSig( $nickname, true );
-			} else {
-				# Failed to validate; fall back to the default
-				$nickname = $username;
-				wfDebug( "Parser::getUserSig: $username has bad XML tags in signature.\n" );
-			}
-		}
-
-		// Make sure nickname doesnt get a sig in a sig
-		$nickname = $this->cleanSigInSig( $nickname );
-
-		# If we're still here, make it a link to the user page
-		$userText = wfEscapeWikiText( $username );
-		$nickText = wfEscapeWikiText( $nickname );
-		if ( $user->isAnon() )  {
-			return wfMsgExt( 'signature-anon', array( 'content', 'parsemag' ), $userText, $nickText );
-		} else {
-			return wfMsgExt( 'signature', array( 'content', 'parsemag' ), $userText, $nickText );
-		}
-	}
-
-	/**
-	 * Check that the user's signature contains no bad XML
-	 *
-	 * @param string $text
-	 * @return mixed An expanded string, or false if invalid.
-	 */
-	function validateSig( $text ) {
-		return( wfIsWellFormedXmlFragment( $text ) ? $text : false );
-	}
-
-	/**
-	 * Clean up signature text
-	 *
-	 * 1) Strip ~~~, ~~~~ and ~~~~~ out of signatures @see cleanSigInSig
-	 * 2) Substitute all transclusions
-	 *
-	 * @param string $text
-	 * @param $parsing Whether we're cleaning (preferences save) or parsing
-	 * @return string Signature text
-	 */
-	function cleanSig( $text, $parsing = false ) {
-		global $wgTitle;
-		$this->startExternalParse( $this->mTitle, new ParserOptions(), $parsing ? self::OT_WIKI : self::OT_MSG );
-
-		$substWord = MagicWord::get( 'subst' );
-		$substRegex = '/\{\{(?!(?:' . $substWord->getBaseRegex() . '))/x' . $substWord->getRegexCase();
-		$substText = '{{' . $substWord->getSynonym( 0 );
-
-		$text = preg_replace( $substRegex, $substText, $text );
-		$text = $this->cleanSigInSig( $text );
-		$text = $this->replaceVariables( $text );
-
-		$this->clearState();
-		return $text;
-	}
-
-	/**
-	 * Strip ~~~, ~~~~ and ~~~~~ out of signatures
-	 * @param string $text
-	 * @return string Signature text with /~{3,5}/ removed
-	 */
-	function cleanSigInSig( $text ) {
-		$text = preg_replace( '/~{3,5}/', '', $text );
-		return $text;
-	}
-
-	/**
-	 * Set up some variables which are usually set up in parse()
-	 * so that an external function can call some class members with confidence
-	 * @public
-	 */
-	function startExternalParse( &$title, $options, $outputType, $clearState = true ) {
-		$this->mTitle =& $title;
-		$this->mOptions = $options;
-		$this->setOutputType( $outputType );
-		if ( $clearState ) {
-			$this->clearState();
-		}
-	}
-
-	/**
-	 * Transform a MediaWiki message by replacing magic variables.
-	 *
-	 * @param string $text the text to transform
-	 * @param ParserOptions $options  options
-	 * @return string the text with variables substituted
-	 * @public
-	 */
-	function transformMsg( $text, $options ) {
-		global $wgTitle;
-		static $executing = false;
-
-		$fname = "Parser::transformMsg";
-
-		# Guard against infinite recursion
-		if ( $executing ) {
-			return $text;
-		}
-		$executing = true;
-
-		wfProfileIn($fname);
-
-		if ( $wgTitle && !( $wgTitle instanceof FakeTitle ) ) {
-			$this->mTitle = $wgTitle;
-		} else {
-			$this->mTitle = Title::newFromText('msg');
-		}
-		$this->mOptions = $options;
-		$this->setOutputType( self::OT_MSG );
-		$this->clearState();
-		$text = $this->replaceVariables( $text );
-
-		$executing = false;
-		wfProfileOut($fname);
-		return $text;
-	}
-
-	/**
-	 * Create an HTML-style tag, e.g. special text
-	 * The callback should have the following form:
-	 *    function myParserHook( $text, $params, &$parser ) { ... }
-	 *
-	 * Transform and return $text. Use $parser for any required context, e.g. use
-	 * $parser->getTitle() and $parser->getOptions() not $wgTitle or $wgOut->mParserOptions
-	 *
-	 * @public
-	 *
-	 * @param mixed $tag The tag to use, e.g. 'hook' for 
-	 * @param mixed $callback The callback function (and object) to use for the tag
-	 *
-	 * @return The old value of the mTagHooks array associated with the hook
-	 */
-	function setHook( $tag, $callback ) {
-		$tag = strtolower( $tag );
-		$oldVal = isset( $this->mTagHooks[$tag] ) ? $this->mTagHooks[$tag] : null;
-		$this->mTagHooks[$tag] = $callback;
-
-		return $oldVal;
-	}
-
-	function setTransparentTagHook( $tag, $callback ) {
-		$tag = strtolower( $tag );
-		$oldVal = isset( $this->mTransparentTagHooks[$tag] ) ? $this->mTransparentTagHooks[$tag] : null;
-		$this->mTransparentTagHooks[$tag] = $callback;
-
-		return $oldVal;
-	}
-
-	/**
-	 * Create a function, e.g. {{sum:1|2|3}}
-	 * The callback function should have the form:
-	 *    function myParserFunction( &$parser, $arg1, $arg2, $arg3 ) { ... }
-	 *
-	 * The callback may either return the text result of the function, or an array with the text
-	 * in element 0, and a number of flags in the other elements. The names of the flags are
-	 * specified in the keys. Valid flags are:
-	 *   found                     The text returned is valid, stop processing the template. This
-	 *                             is on by default.
-	 *   nowiki                    Wiki markup in the return value should be escaped
-	 *   noparse                   Unsafe HTML tags should not be stripped, etc.
-	 *   noargs                    Don't replace triple-brace arguments in the return value
-	 *   isHTML                    The returned text is HTML, armour it against wikitext transformation
-	 *
-	 * @public
-	 *
-	 * @param string $id The magic word ID
-	 * @param mixed $callback The callback function (and object) to use
-	 * @param integer $flags a combination of the following flags:
-	 *                SFH_NO_HASH No leading hash, i.e. {{plural:...}} instead of {{#if:...}}
-	 *
-	 * @return The old callback function for this name, if any
-	 */
-	function setFunctionHook( $id, $callback, $flags = 0 ) {
-		$oldVal = isset( $this->mFunctionHooks[$id] ) ? $this->mFunctionHooks[$id] : null;
-		$this->mFunctionHooks[$id] = $callback;
-
-		# Add to function cache
-		$mw = MagicWord::get( $id );
-		if( !$mw )
-			throw new MWException( 'Parser::setFunctionHook() expecting a magic word identifier.' );
-
-		$synonyms = $mw->getSynonyms();
-		$sensitive = intval( $mw->isCaseSensitive() );
-
-		foreach ( $synonyms as $syn ) {
-			# Case
-			if ( !$sensitive ) {
-				$syn = strtolower( $syn );
-			}
-			# Add leading hash
-			if ( !( $flags & SFH_NO_HASH ) ) {
-				$syn = '#' . $syn;
-			}
-			# Remove trailing colon
-			if ( substr( $syn, -1, 1 ) == ':' ) {
-				$syn = substr( $syn, 0, -1 );
-			}
-			$this->mFunctionSynonyms[$sensitive][$syn] = $id;
-		}
-		return $oldVal;
-	}
-
-	/**
-	 * Get all registered function hook identifiers
-	 *
-	 * @return array
-	 */
-	function getFunctionHooks() {
-		return array_keys( $this->mFunctionHooks );
-	}
-
-	/**
-	 * Replace  link placeholders with actual links, in the buffer
-	 * Placeholders created in Skin::makeLinkObj()
-	 * Returns an array of links found, indexed by PDBK:
-	 *  0 - broken
-	 *  1 - normal link
-	 *  2 - stub
-	 * $options is a bit field, RLH_FOR_UPDATE to select for update
-	 */
-	function replaceLinkHolders( &$text, $options = 0 ) {
-		global $wgUser;
-		global $wgContLang;
-
-		$fname = 'Parser::replaceLinkHolders';
-		wfProfileIn( $fname );
-
-		$pdbks = array();
-		$colours = array();
-		$sk = $this->mOptions->getSkin();
-		$linkCache = LinkCache::singleton();
-
-		if ( !empty( $this->mLinkHolders['namespaces'] ) ) {
-			wfProfileIn( $fname.'-check' );
-			$dbr = wfGetDB( DB_SLAVE );
-			$page = $dbr->tableName( 'page' );
-			$threshold = $wgUser->getOption('stubthreshold');
-
-			# Sort by namespace
-			asort( $this->mLinkHolders['namespaces'] );
-
-			# Generate query
-			$query = false;
-			$current = null;
-			foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) {
-				# Make title object
-				$title = $this->mLinkHolders['titles'][$key];
-
-				# Skip invalid entries.
-				# Result will be ugly, but prevents crash.
-				if ( is_null( $title ) ) {
-					continue;
-				}
-				$pdbk = $pdbks[$key] = $title->getPrefixedDBkey();
-
-				# Check if it's a static known link, e.g. interwiki
-				if ( $title->isAlwaysKnown() ) {
-					$colours[$pdbk] = 1;
-				} elseif ( ( $id = $linkCache->getGoodLinkID( $pdbk ) ) != 0 ) {
-					$colours[$pdbk] = 1;
-					$this->mOutput->addLink( $title, $id );
-				} elseif ( $linkCache->isBadLink( $pdbk ) ) {
-					$colours[$pdbk] = 0;
-				} elseif ( $title->getNamespace() == NS_SPECIAL && !SpecialPage::exists( $pdbk ) ) {
-					$colours[$pdbk] = 0;
-				} else {
-					# Not in the link cache, add it to the query
-					if ( !isset( $current ) ) {
-						$current = $ns;
-						$query =  "SELECT page_id, page_namespace, page_title, page_len, page_is_redirect";
-						$query .= " FROM $page WHERE (page_namespace=$ns AND page_title IN(";
-					} elseif ( $current != $ns ) {
-						$current = $ns;
-						$query .= ")) OR (page_namespace=$ns AND page_title IN(";
-					} else {
-						$query .= ', ';
-					}
-
-					$query .= $dbr->addQuotes( $this->mLinkHolders['dbkeys'][$key] );
-				}
-			}
-			if ( $query ) {
-				$query .= '))';
-				if ( $options & RLH_FOR_UPDATE ) {
-					$query .= ' FOR UPDATE';
-				}
-
-				$res = $dbr->query( $query, $fname );
-
-				# Fetch data and form into an associative array
-				# non-existent = broken
-				# 1 = known
-				# 2 = stub
-				while ( $s = $dbr->fetchObject($res) ) {
-					$title = Title::makeTitle( $s->page_namespace, $s->page_title );
-					$pdbk = $title->getPrefixedDBkey();
-					$linkCache->addGoodLinkObj( $s->page_id, $title, $s->page_len, $s->page_is_redirect );
-					$this->mOutput->addLink( $title, $s->page_id );
-
-					$colours[$pdbk] = ( $threshold == 0 || (
-								$s->page_len >= $threshold || # always true if $threshold <= 0
-							        $s->page_is_redirect ||
-							        !MWNamespace::isContent( $s->page_namespace ) )
-							    ? 1 : 2 );
-				}
-			}
-			wfProfileOut( $fname.'-check' );
-
-			# Do a second query for different language variants of links and categories
-			if( $wgContLang->hasVariants() ) {
-				$linkBatch = new LinkBatch();
-				$variantMap = array(); // maps $pdbkey_Variant => $keys (of link holders)
-				$categoryMap = array(); // maps $category_variant => $category (dbkeys)
-				$varCategories = array(); // category replacements oldDBkey => newDBkey
-
-				$categories = $this->mOutput->getCategoryLinks();
-
-				// Add variants of links to link batch
-				foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) {
-					$title = $this->mLinkHolders['titles'][$key];
-					if ( is_null( $title ) )
-						continue;
-
-					$pdbk = $title->getPrefixedDBkey();
-					$titleText = $title->getText();
-
-					// generate all variants of the link title text
-					$allTextVariants = $wgContLang->convertLinkToAllVariants($titleText);
-
-					// if link was not found (in first query), add all variants to query
-					if ( !isset($colours[$pdbk]) ){
-						foreach($allTextVariants as $textVariant){
-							if($textVariant != $titleText){
-								$variantTitle = Title::makeTitle( $ns, $textVariant );
-								if(is_null($variantTitle)) continue;
-								$linkBatch->addObj( $variantTitle );
-								$variantMap[$variantTitle->getPrefixedDBkey()][] = $key;
-							}
-						}
-					}
-				}
-
-				// process categories, check if a category exists in some variant
-				foreach( $categories as $category ){
-					$variants = $wgContLang->convertLinkToAllVariants($category);
-					foreach($variants as $variant){
-						if($variant != $category){
-							$variantTitle = Title::newFromDBkey( Title::makeName(NS_CATEGORY,$variant) );
-							if(is_null($variantTitle)) continue;
-							$linkBatch->addObj( $variantTitle );
-							$categoryMap[$variant] = $category;
-						}
-					}
-				}
-
-
-				if ( !$linkBatch->isEmpty() ){
-					// construct query
-					$titleClause = $linkBatch->constructSet('page', $dbr);
-
-					$variantQuery =  "SELECT page_id, page_namespace, page_title, page_len, page_is_redirect";
-
-					$variantQuery .= " FROM $page WHERE $titleClause";
-					if ( $options & RLH_FOR_UPDATE ) {
-						$variantQuery .= ' FOR UPDATE';
-					}
-
-					$varRes = $dbr->query( $variantQuery, $fname );
-
-					// for each found variants, figure out link holders and replace
-					while ( $s = $dbr->fetchObject($varRes) ) {
-
-						$variantTitle = Title::makeTitle( $s->page_namespace, $s->page_title );
-						$varPdbk = $variantTitle->getPrefixedDBkey();
-						$vardbk = $variantTitle->getDBkey();
-
-						$holderKeys = array();
-						if(isset($variantMap[$varPdbk])){
-							$holderKeys = $variantMap[$varPdbk];
-							$linkCache->addGoodLinkObj( $s->page_id, $variantTitle, $s->page_len, $s->page_is_redirect );
-							$this->mOutput->addLink( $variantTitle, $s->page_id );
-						}
-
-						// loop over link holders
-						foreach($holderKeys as $key){
-							$title = $this->mLinkHolders['titles'][$key];
-							if ( is_null( $title ) ) continue;
-
-							$pdbk = $title->getPrefixedDBkey();
-
-							if(!isset($colours[$pdbk])){
-								// found link in some of the variants, replace the link holder data
-								$this->mLinkHolders['titles'][$key] = $variantTitle;
-								$this->mLinkHolders['dbkeys'][$key] = $variantTitle->getDBkey();
-
-								// set pdbk and colour
-								$pdbks[$key] = $varPdbk;
-								if ( $threshold >  0 ) {
-									$size = $s->page_len;
-									if ( $s->page_is_redirect || $s->page_namespace != 0 || $size >= $threshold ) {
-										$colours[$varPdbk] = 1;
-									} else {
-										$colours[$varPdbk] = 2;
-									}
-								}
-								else {
-									$colours[$varPdbk] = 1;
-								}
-							}
-						}
-
-						// check if the object is a variant of a category
-						if(isset($categoryMap[$vardbk])){
-							$oldkey = $categoryMap[$vardbk];
-							if($oldkey != $vardbk)
-								$varCategories[$oldkey]=$vardbk;
-						}
-					}
-
-					// rebuild the categories in original order (if there are replacements)
-					if(count($varCategories)>0){
-						$newCats = array();
-						$originalCats = $this->mOutput->getCategories();
-						foreach($originalCats as $cat => $sortkey){
-							// make the replacement
-							if( array_key_exists($cat,$varCategories) )
-								$newCats[$varCategories[$cat]] = $sortkey;
-							else $newCats[$cat] = $sortkey;
-						}
-						$this->mOutput->setCategoryLinks($newCats);
-					}
-				}
-			}
-
-			# Construct search and replace arrays
-			wfProfileIn( $fname.'-construct' );
-			$replacePairs = array();
-			foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) {
-				$pdbk = $pdbks[$key];
-				$searchkey = "";
-				$title = $this->mLinkHolders['titles'][$key];
-				if ( empty( $colours[$pdbk] ) ) {
-					$linkCache->addBadLinkObj( $title );
-					$colours[$pdbk] = 0;
-					$this->mOutput->addLink( $title, 0 );
-					$replacePairs[$searchkey] = $sk->makeBrokenLinkObj( $title,
-									$this->mLinkHolders['texts'][$key],
-									$this->mLinkHolders['queries'][$key] );
-				} elseif ( $colours[$pdbk] == 1 ) {
-					$replacePairs[$searchkey] = $sk->makeKnownLinkObj( $title,
-									$this->mLinkHolders['texts'][$key],
-									$this->mLinkHolders['queries'][$key] );
-				} elseif ( $colours[$pdbk] == 2 ) {
-					$replacePairs[$searchkey] = $sk->makeStubLinkObj( $title,
-									$this->mLinkHolders['texts'][$key],
-									$this->mLinkHolders['queries'][$key] );
-				}
-			}
-			$replacer = new HashtableReplacer( $replacePairs, 1 );
-			wfProfileOut( $fname.'-construct' );
-
-			# Do the thing
-			wfProfileIn( $fname.'-replace' );
-			$text = preg_replace_callback(
-				'/()/',
-				$replacer->cb(),
-				$text);
-
-			wfProfileOut( $fname.'-replace' );
-		}
-
-		# Now process interwiki link holders
-		# This is quite a bit simpler than internal links
-		if ( !empty( $this->mInterwikiLinkHolders['texts'] ) ) {
-			wfProfileIn( $fname.'-interwiki' );
-			# Make interwiki link HTML
-			$replacePairs = array();
-			foreach( $this->mInterwikiLinkHolders['texts'] as $key => $link ) {
-				$title = $this->mInterwikiLinkHolders['titles'][$key];
-				$replacePairs[$key] = $sk->makeLinkObj( $title, $link );
-			}
-			$replacer = new HashtableReplacer( $replacePairs, 1 );
-
-			$text = preg_replace_callback(
-				'//',
-				$replacer->cb(),
-				$text );
-			wfProfileOut( $fname.'-interwiki' );
-		}
-
-		wfProfileOut( $fname );
-		return $colours;
-	}
-
-	/**
-	 * Replace  link placeholders with plain text of links
-	 * (not HTML-formatted).
-	 * @param string $text
-	 * @return string
-	 */
-	function replaceLinkHoldersText( $text ) {
-		$fname = 'Parser::replaceLinkHoldersText';
-		wfProfileIn( $fname );
-
-		$text = preg_replace_callback(
-			'//',
-			array( &$this, 'replaceLinkHoldersTextCallback' ),
-			$text );
-
-		wfProfileOut( $fname );
-		return $text;
-	}
-
-	/**
-	 * @param array $matches
-	 * @return string
-	 * @private
-	 */
-	function replaceLinkHoldersTextCallback( $matches ) {
-		$type = $matches[1];
-		$key  = $matches[2];
-		if( $type == 'LINK' ) {
-			if( isset( $this->mLinkHolders['texts'][$key] ) ) {
-				return $this->mLinkHolders['texts'][$key];
-			}
-		} elseif( $type == 'IWLINK' ) {
-			if( isset( $this->mInterwikiLinkHolders['texts'][$key] ) ) {
-				return $this->mInterwikiLinkHolders['texts'][$key];
-			}
-		}
-		return $matches[0];
-	}
-
-	/**
-	 * Tag hook handler for 'pre'.
-	 */
-	function renderPreTag( $text, $attribs ) {
-		// Backwards-compatibility hack
-		$content = StringUtils::delimiterReplace( '', '', '$1', $text, 'i' );
-
-		$attribs = Sanitizer::validateTagAttributes( $attribs, 'pre' );
-		return wfOpenElement( 'pre', $attribs ) .
-			Xml::escapeTagsOnly( $content ) .
-			'
    ';
-	}
-
-	/**
-	 * Renders an image gallery from a text with one line per image.
-	 * text labels may be given by using |-style alternative text. E.g.
-	 *   Image:one.jpg|The number "1"
-	 *   Image:tree.jpg|A tree
-	 * given as text will return the HTML of a gallery with two images,
-	 * labeled 'The number "1"' and
-	 * 'A tree'.
-	 */
-	function renderImageGallery( $text, $params ) {
-		$ig = new ImageGallery();
-		$ig->setContextTitle( $this->mTitle );
-		$ig->setShowBytes( false );
-		$ig->setShowFilename( false );
-		$ig->setParser( $this );
-		$ig->setHideBadImages();
-		$ig->setAttributes( Sanitizer::validateTagAttributes( $params, 'table' ) );
-		$ig->useSkin( $this->mOptions->getSkin() );
-		$ig->mRevisionId = $this->mRevisionId;
-
-		if( isset( $params['caption'] ) ) {
-			$caption = $params['caption'];
-			$caption = htmlspecialchars( $caption );
-			$caption = $this->replaceInternalLinks( $caption );
-			$ig->setCaptionHtml( $caption );
-		}
-		if( isset( $params['perrow'] ) ) {
-			$ig->setPerRow( $params['perrow'] );
-		}
-		if( isset( $params['widths'] ) ) {
-			$ig->setWidths( $params['widths'] );
-		}
-		if( isset( $params['heights'] ) ) {
-			$ig->setHeights( $params['heights'] );
-		}
-
-		wfRunHooks( 'BeforeParserrenderImageGallery', array( &$this, &$ig ) );
-
-		$lines = explode( "\n", $text );
-		foreach ( $lines as $line ) {
-			# match lines like these:
-			# Image:someimage.jpg|This is some image
-			$matches = array();
-			preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
-			# Skip empty lines
-			if ( count( $matches ) == 0 ) {
-				continue;
-			}
-			$tp = Title::newFromText( $matches[1] );
-			$nt =& $tp;
-			if( is_null( $nt ) ) {
-				# Bogus title. Ignore these so we don't bomb out later.
-				continue;
-			}
-			if ( isset( $matches[3] ) ) {
-				$label = $matches[3];
-			} else {
-				$label = '';
-			}
-
-			$pout = $this->parse( $label,
-				$this->mTitle,
-				$this->mOptions,
-				false, // Strip whitespace...?
-				false  // Don't clear state!
-			);
-			$html = $pout->getText();
-
-			$ig->add( $nt, $html );
-
-			# Only add real images (bug #5586)
-			if ( $nt->getNamespace() == NS_IMAGE ) {
-				$this->mOutput->addImage( $nt->getDBkey() );
-			}
-		}
-		return $ig->toHTML();
-	}
-
-	function getImageParams( $handler ) {
-		if ( $handler ) {
-			$handlerClass = get_class( $handler );
-		} else {
-			$handlerClass = '';
-		}
-		if ( !isset( $this->mImageParams[$handlerClass]  ) ) {
-			// Initialise static lists
-			static $internalParamNames = array(
-				'horizAlign' => array( 'left', 'right', 'center', 'none' ),
-				'vertAlign' => array( 'baseline', 'sub', 'super', 'top', 'text-top', 'middle',
-					'bottom', 'text-bottom' ),
-				'frame' => array( 'thumbnail', 'manualthumb', 'framed', 'frameless',
-					'upright', 'border' ),
-			);
-			static $internalParamMap;
-			if ( !$internalParamMap ) {
-				$internalParamMap = array();
-				foreach ( $internalParamNames as $type => $names ) {
-					foreach ( $names as $name ) {
-						$magicName = str_replace( '-', '_', "img_$name" );
-						$internalParamMap[$magicName] = array( $type, $name );
-					}
-				}
-			}
-
-			// Add handler params
-			$paramMap = $internalParamMap;
-			if ( $handler ) {
-				$handlerParamMap = $handler->getParamMap();
-				foreach ( $handlerParamMap as $magic => $paramName ) {
-					$paramMap[$magic] = array( 'handler', $paramName );
-				}
-			}
-			$this->mImageParams[$handlerClass] = $paramMap;
-			$this->mImageParamsMagicArray[$handlerClass] = new MagicWordArray( array_keys( $paramMap ) );
-		}
-		return array( $this->mImageParams[$handlerClass], $this->mImageParamsMagicArray[$handlerClass] );
-	}
-
-	/**
-	 * Parse image options text and use it to make an image
-	 */
-	function makeImage( $title, $options ) {
-		# @TODO: let the MediaHandler specify its transform parameters
-		#
-		# Check if the options text is of the form "options|alt text"
-		# Options are:
-		#  * thumbnail       	make a thumbnail with enlarge-icon and caption, alignment depends on lang
-		#  * left		no resizing, just left align. label is used for alt= only
-		#  * right		same, but right aligned
-		#  * none		same, but not aligned
-		#  * ___px		scale to ___ pixels width, no aligning. e.g. use in taxobox
-		#  * center		center the image
-		#  * framed		Keep original image size, no magnify-button.
-		#  * frameless		like 'thumb' but without a frame. Keeps user preferences for width
-		#  * upright		reduce width for upright images, rounded to full __0 px
-		#  * border		draw a 1px border around the image
-		# vertical-align values (no % or length right now):
-		#  * baseline
-		#  * sub
-		#  * super
-		#  * top
-		#  * text-top
-		#  * middle
-		#  * bottom
-		#  * text-bottom
-
-		$parts = array_map( 'trim', explode( '|', $options) );
-		$sk = $this->mOptions->getSkin();
-
-		# Give extensions a chance to select the file revision for us
-		$skip = $time = false;
-		wfRunHooks( 'BeforeParserMakeImageLinkObj', array( &$this, &$title, &$skip, &$time ) );
-
-		if ( $skip ) {
-			return $sk->makeLinkObj( $title );
-		}
-
-		# Get parameter map
-		$file = wfFindFile( $title, $time );
-		$handler = $file ? $file->getHandler() : false;
-
-		list( $paramMap, $mwArray ) = $this->getImageParams( $handler );
-
-		# Process the input parameters
-		$caption = '';
-		$params = array( 'frame' => array(), 'handler' => array(),
-			'horizAlign' => array(), 'vertAlign' => array() );
-		foreach( $parts as $part ) {
-			list( $magicName, $value ) = $mwArray->matchVariableStartToEnd( $part );
-			if ( isset( $paramMap[$magicName] ) ) {
-				list( $type, $paramName ) = $paramMap[$magicName];
-				$params[$type][$paramName] = $value;
-
-				// Special case; width and height come in one variable together
-				if( $type == 'handler' && $paramName == 'width' ) {
-					$m = array();
-					if ( preg_match( '/^([0-9]*)x([0-9]*)$/', $value, $m ) ) {
-						$params[$type]['width'] = intval( $m[1] );
-						$params[$type]['height'] = intval( $m[2] );
-					} else {
-						$params[$type]['width'] = intval( $value );
-					}
-				}
-			} else {
-				$caption = $part;
-			}
-		}
-
-		# Process alignment parameters
-		if ( $params['horizAlign'] ) {
-			$params['frame']['align'] = key( $params['horizAlign'] );
-		}
-		if ( $params['vertAlign'] ) {
-			$params['frame']['valign'] = key( $params['vertAlign'] );
-		}
-
-		# Validate the handler parameters
-		if ( $handler ) {
-			foreach ( $params['handler'] as $name => $value ) {
-				if ( !$handler->validateParam( $name, $value ) ) {
-					unset( $params['handler'][$name] );
-				}
-			}
-		}
-
-		# Strip bad stuff out of the alt text
-		$alt = $this->replaceLinkHoldersText( $caption );
-
-		# make sure there are no placeholders in thumbnail attributes
-		# that are later expanded to html- so expand them now and
-		# remove the tags
-		$alt = $this->mStripState->unstripBoth( $alt );
-		$alt = Sanitizer::stripAllTags( $alt );
-
-		$params['frame']['alt'] = $alt;
-		$params['frame']['caption'] = $caption;
-
-		# Linker does the rest
-		$ret = $sk->makeImageLink2( $title, $file, $params['frame'], $params['handler'] );
-
-		# Give the handler a chance to modify the parser object
-		if ( $handler ) {
-			$handler->parserTransformHook( $this, $file );
-		}
-
-		return $ret;
-	}
-
-	/**
-	 * Set a flag in the output object indicating that the content is dynamic and
-	 * shouldn't be cached.
-	 */
-	function disableCache() {
-		wfDebug( "Parser output marked as uncacheable.\n" );
-		$this->mOutput->mCacheTime = -1;
-	}
-
-	/**#@+
-	 * Callback from the Sanitizer for expanding items found in HTML attribute
-	 * values, so they can be safely tested and escaped.
-	 * @param string $text
-	 * @param array $args
-	 * @return string
-	 * @private
-	 */
-	function attributeStripCallback( &$text, $args ) {
-		$text = $this->replaceVariables( $text, $args );
-		$text = $this->mStripState->unstripBoth( $text );
-		return $text;
-	}
-
-	/**#@-*/
-
-	/**#@+
-	 * Accessor/mutator
-	 */
-	function Title( $x = NULL ) { return wfSetVar( $this->mTitle, $x ); }
-	function Options( $x = NULL ) { return wfSetVar( $this->mOptions, $x ); }
-	function OutputType( $x = NULL ) { return wfSetVar( $this->mOutputType, $x ); }
-	/**#@-*/
-
-	/**#@+
-	 * Accessor
-	 */
-	function getTags() { return array_merge( array_keys($this->mTransparentTagHooks), array_keys( $this->mTagHooks ) ); }
-	/**#@-*/
-
-
-	/**
-	 * Break wikitext input into sections, and either pull or replace
-	 * some particular section's text.
-	 *
-	 * External callers should use the getSection and replaceSection methods.
-	 *
-	 * @param $text Page wikitext
-	 * @param $section Numbered section. 0 pulls the text before the first
-	 *                 heading; other numbers will pull the given section
-	 *                 along with its lower-level subsections.
-	 * @param $mode One of "get" or "replace"
-	 * @param $newtext Replacement text for section data.
-	 * @return string for "get", the extracted section text.
-	 *                for "replace", the whole page with the section replaced.
-	 */
-	private function extractSections( $text, $section, $mode, $newtext='' ) {
-		# I.... _hope_ this is right.
-		# Otherwise, sometimes we don't have things initialized properly.
-		$this->clearState();
-
-		# strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
-		# comments to be stripped as well)
-		$stripState = new StripState;
-
-		$oldOutputType = $this->mOutputType;
-		$oldOptions = $this->mOptions;
-		$this->mOptions = new ParserOptions();
-		$this->setOutputType( self::OT_WIKI );
-
-		$striptext = $this->strip( $text, $stripState, true );
-
-		$this->setOutputType( $oldOutputType );
-		$this->mOptions = $oldOptions;
-
-		# now that we can be sure that no pseudo-sections are in the source,
-		# split it up by section
-		$uniq = preg_quote( $this->uniqPrefix(), '/' );
-		$comment = "(?:$uniq-!--.*?QINU\x07)";
-		$secs = preg_split(
-			"/
-			(
-				^
-				(?:$comment|<\/?noinclude>)* # Initial comments will be stripped
-				(=+) # Should this be limited to 6?
-				.+?  # Section title...
-				\\2  # Ending = count must match start
-				(?:$comment|<\/?noinclude>|[ \\t]+)* # Trailing whitespace ok
-				$
-			|
-				
-				.*?
-				<\/h\\3\s*>
-			)
-			/mix",
-			$striptext, -1,
-			PREG_SPLIT_DELIM_CAPTURE);
-
-		if( $mode == "get" ) {
-			if( $section == 0 ) {
-				// "Section 0" returns the content before any other section.
-				$rv = $secs[0];
-			} else {
-			  	//track missing section, will replace if found.
-				$rv = $newtext;
-			}
-		} elseif( $mode == "replace" ) {
-			if( $section == 0 ) {
-				$rv = $newtext . "\n\n";
-				$remainder = true;
-			} else {
-				$rv = $secs[0];
-				$remainder = false;
-			}
-		}
-		$count = 0;
-		$sectionLevel = 0;
-		for( $index = 1; $index < count( $secs ); ) {
-			$headerLine = $secs[$index++];
-			if( $secs[$index] ) {
-				// A wiki header
-				$headerLevel = strlen( $secs[$index++] );
-			} else {
-				// An HTML header
-				$index++;
-				$headerLevel = intval( $secs[$index++] );
-			}
-			$content = $secs[$index++];
-
-			$count++;
-			if( $mode == "get" ) {
-				if( $count == $section ) {
-					$rv = $headerLine . $content;
-					$sectionLevel = $headerLevel;
-				} elseif( $count > $section ) {
-					if( $sectionLevel && $headerLevel > $sectionLevel ) {
-						$rv .= $headerLine . $content;
-					} else {
-						// Broke out to a higher-level section
-						break;
-					}
-				}
-			} elseif( $mode == "replace" ) {
-				if( $count < $section ) {
-					$rv .= $headerLine . $content;
-				} elseif( $count == $section ) {
-					$rv .= $newtext . "\n\n";
-					$sectionLevel = $headerLevel;
-				} elseif( $count > $section ) {
-					if( $headerLevel <= $sectionLevel ) {
-						// Passed the section's sub-parts.
-						$remainder = true;
-					}
-					if( $remainder ) {
-						$rv .= $headerLine . $content;
-					}
-				}
-			}
-		}
-		if (is_string($rv))
-			# reinsert stripped tags
-			$rv = trim( $stripState->unstripBoth( $rv ) );
-
-		return $rv;
-	}
-
-	/**
-	 * This function returns the text of a section, specified by a number ($section).
-	 * A section is text under a heading like == Heading == or \Heading\, or
-	 * the first section before any such heading (section 0).
-	 *
-	 * If a section contains subsections, these are also returned.
-	 *
-	 * @param $text String: text to look in
-	 * @param $section Integer: section number
-	 * @param $deftext: default to return if section is not found
-	 * @return string text of the requested section
-	 */
-	public function getSection( $text, $section, $deftext='' ) {
-		return $this->extractSections( $text, $section, "get", $deftext );
-	}
-
-	public function replaceSection( $oldtext, $section, $text ) {
-		return $this->extractSections( $oldtext, $section, "replace", $text );
-	}
-
-	/**
-	 * Get the timestamp associated with the current revision, adjusted for
-	 * the default server-local timestamp
-	 */
-	function getRevisionTimestamp() {
-		if ( is_null( $this->mRevisionTimestamp ) ) {
-			wfProfileIn( __METHOD__ );
-			global $wgContLang;
-			$dbr = wfGetDB( DB_SLAVE );
-			$timestamp = $dbr->selectField( 'revision', 'rev_timestamp',
-					array( 'rev_id' => $this->mRevisionId ), __METHOD__ );
-
-			// Normalize timestamp to internal MW format for timezone processing.
-			// This has the added side-effect of replacing a null value with
-			// the current time, which gives us more sensible behavior for
-			// previews.
-			$timestamp = wfTimestamp( TS_MW, $timestamp );
-
-			// The cryptic '' timezone parameter tells to use the site-default
-			// timezone offset instead of the user settings.
-			//
-			// Since this value will be saved into the parser cache, served
-			// to other users, and potentially even used inside links and such,
-			// it needs to be consistent for all visitors.
-			$this->mRevisionTimestamp = $wgContLang->userAdjust( $timestamp, '' );
-
-			wfProfileOut( __METHOD__ );
-		}
-		return $this->mRevisionTimestamp;
-	}
-
-	/**
-	 * Mutator for $mDefaultSort
-	 *
-	 * @param $sort New value
-	 */
-	public function setDefaultSort( $sort ) {
-		$this->mDefaultSort = $sort;
-	}
-
-	/**
-	 * Accessor for $mDefaultSort
-	 * Will use the title/prefixed title if none is set
-	 *
-	 * @return string
-	 */
-	public function getDefaultSort() {
-		if( $this->mDefaultSort !== false ) {
-			return $this->mDefaultSort;
-		} else {
-			return $this->mTitle->getNamespace() == NS_CATEGORY
-					? $this->mTitle->getText()
-					: $this->mTitle->getPrefixedText();
-		}
-	}
-
-	/**
-	 * Try to guess the section anchor name based on a wikitext fragment
-	 * presumably extracted from a heading, for example "Header" from
-	 * "== Header ==".
-	 */
-	public function guessSectionNameFromWikiText( $text ) {
-		# Strip out wikitext links(they break the anchor)
-		$text = $this->stripSectionName( $text );
-		$headline = Sanitizer::decodeCharReferences( $text );
-		# strip out HTML
-		$headline = StringUtils::delimiterReplace( '<', '>', '', $headline );
-		$headline = trim( $headline );
-		$sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
-		$replacearray = array(
-			'%3A' => ':',
-			'%' => '.'
-		);
-		return str_replace(
-			array_keys( $replacearray ),
-			array_values( $replacearray ),
-			$sectionanchor );
-	}
-
-	/**
-	 * Strips a text string of wikitext for use in a section anchor
-	 *
-	 * Accepts a text string and then removes all wikitext from the
-	 * string and leaves only the resultant text (i.e. the result of
-	 * [[User:WikiSysop|Sysop]] would be "Sysop" and the result of
-	 * [[User:WikiSysop]] would be "User:WikiSysop") - this is intended
-	 * to create valid section anchors by mimicing the output of the
-	 * parser when headings are parsed.
-	 *
-	 * @param $text string Text string to be stripped of wikitext
-	 * for use in a Section anchor
-	 * @return Filtered text string
-	 */
-	public function stripSectionName( $text ) {
-		# Strip internal link markup
-		$text = preg_replace('/\[\[:?([^[|]+)\|([^[]+)\]\]/','$2',$text);
-		$text = preg_replace('/\[\[:?([^[]+)\|?\]\]/','$1',$text);
-
-		# Strip external link markup (FIXME: Not Tolerant to blank link text
-		# I.E. [http://www.mediawiki.org] will render as [1] or something depending
-		# on how many empty links there are on the page - need to figure that out.
-		$text = preg_replace('/\[(?:' . wfUrlProtocols() . ')([^ ]+?) ([^[]+)\]/','$2',$text);
-
-		# Parse wikitext quotes (italics & bold)
-		$text = $this->doQuotes($text);
-
-		# Strip HTML tags
-		$text = StringUtils::delimiterReplace( '<', '>', '', $text );
-		return $text;
-	}
-
-	/**
-	 * strip/replaceVariables/unstrip for preprocessor regression testing
-	 */
-	function srvus( $text ) {
-		$text = $this->strip( $text, $this->mStripState );
-		$text = Sanitizer::removeHTMLtags( $text );
-		$text = $this->replaceVariables( $text );
-		$text = preg_replace( '//', '', $text );
-		$text = $this->mStripState->unstripBoth( $text );
-		return $text;
-	}
-}
diff --git a/includes/Preprocessor.php b/includes/Preprocessor.php
deleted file mode 100644
index 322e197f7e..0000000000
--- a/includes/Preprocessor.php
+++ /dev/null
@@ -1,160 +0,0 @@
- node into an associative array containing:
-	 *    name          PPNode name
-	 *    index         String index
-	 *    value         PPNode value
-	 */
-	function splitArg();
-
-	/**
-	 * Split an  node into an associative array containing name, attr, inner and close
-	 * All values in the resulting array are PPNodes. Inner and close are optional.
-	 */
-	function splitExt();
-
-	/**
-	 * Split an  node
-	 */
-	function splitHeading();
-}
diff --git a/includes/Preprocessor_DOM.php b/includes/Preprocessor_DOM.php
deleted file mode 100644
index 01776cdb47..0000000000
--- a/includes/Preprocessor_DOM.php
+++ /dev/null
@@ -1,1379 +0,0 @@
-parser = $parser;
-		$mem = ini_get( 'memory_limit' );
-		$this->memoryLimit = false;
-		if ( strval( $mem ) !== '' && $mem != -1 ) {
-			if ( preg_match( '/^\d+$/', $mem ) ) {
-				$this->memoryLimit = $mem;
-			} elseif ( preg_match( '/^(\d+)M$/i', $mem, $m ) ) {
-				$this->memoryLimit = $m[1] * 1048576;
-			}
-		}
-	}
-
-	function newFrame() {
-		return new PPFrame_DOM( $this );
-	}
-
-	function memCheck() {
-		if ( $this->memoryLimit === false ) {
-			return;
-		}
-		$usage = memory_get_usage();
-		if ( $usage > $this->memoryLimit * 0.9 ) {
-			$limit = intval( $this->memoryLimit * 0.9 / 1048576 + 0.5 );
-			throw new MWException( "Preprocessor hit 90% memory limit ($limit MB)" );
-		}
-		return $usage <= $this->memoryLimit * 0.8;
-	}
-
-	/**
-	 * Preprocess some wikitext and return the document tree.
-	 * This is the ghost of Parser::replace_variables().
-	 *
-	 * @param string $text The text to parse
-	 * @param integer flags Bitwise combination of:
-	 *          Parser::PTD_FOR_INCLUSION    Handle / as if the text is being
-	 *                                     included. Default is to assume a direct page view.
-	 *
-	 * The generated DOM tree must depend only on the input text and the flags.
-	 * The DOM tree must be the same in OT_HTML and OT_WIKI mode, to avoid a regression of bug 4899.
-	 *
-	 * Any flag added to the $flags parameter here, or any other parameter liable to cause a
-	 * change in the DOM tree for a given text, must be passed through the section identifier
-	 * in the section edit link and thus back to extractSections().
-	 *
-	 * The output of this function is currently only cached in process memory, but a persistent
-	 * cache may be implemented at a later date which takes further advantage of these strict
-	 * dependency requirements.
-	 *
-	 * @private
-	 */
-	function preprocessToObj( $text, $flags = 0 ) {
-		wfProfileIn( __METHOD__ );
-		wfProfileIn( __METHOD__.'-makexml' );
-
-		$rules = array(
-			'{' => array(
-				'end' => '}',
-				'names' => array(
-					2 => 'template',
-					3 => 'tplarg',
-				),
-				'min' => 2,
-				'max' => 3,
-			),
-			'[' => array(
-				'end' => ']',
-				'names' => array( 2 => null ),
-				'min' => 2,
-				'max' => 2,
-			)
-		);
-
-		$forInclusion = $flags & Parser::PTD_FOR_INCLUSION;
-
-		$xmlishElements = $this->parser->getStripList();
-		$enableOnlyinclude = false;
-		if ( $forInclusion ) {
-			$ignoredTags = array( 'includeonly', '/includeonly' );
-			$ignoredElements = array( 'noinclude' );
-			$xmlishElements[] = 'noinclude';
-			if ( strpos( $text, '' ) !== false && strpos( $text, '' ) !== false ) {
-				$enableOnlyinclude = true;
-			}
-		} else {
-			$ignoredTags = array( 'noinclude', '/noinclude', 'onlyinclude', '/onlyinclude' );
-			$ignoredElements = array( 'includeonly' );
-			$xmlishElements[] = 'includeonly';
-		}
-		$xmlishRegex = implode( '|', array_merge( $xmlishElements, $ignoredTags ) );
-
-		// Use "A" modifier (anchored) instead of "^", because ^ doesn't work with an offset
-		$elementsRegex = "~($xmlishRegex)(?:\s|\/>|>)|(!--)~iA";
-
-		$stack = new PPDStack;
-
-		$searchBase = "[{<\n"; #}
-		$revText = strrev( $text ); // For fast reverse searches
-
-		$i = 0;                     # Input pointer, starts out pointing to a pseudo-newline before the start
-		$accum =& $stack->getAccum();   # Current accumulator
-		$accum = '';
-		$findEquals = false;            # True to find equals signs in arguments
-		$findPipe = false;              # True to take notice of pipe characters
-		$headingIndex = 1;
-		$inHeading = false;        # True if $i is inside a possible heading
-		$noMoreGT = false;         # True if there are no more greater-than (>) signs right of $i
-		$findOnlyinclude = $enableOnlyinclude; # True to ignore all input up to the next 
-		$fakeLineStart = true;     # Do a line-start run without outputting an LF character
-
-		while ( true ) {
-			//$this->memCheck();
-
-			if ( $findOnlyinclude ) {
-				// Ignore all input up to the next 
-				$startPos = strpos( $text, '', $i );
-				if ( $startPos === false ) {
-					// Ignored section runs to the end
-					$accum .= '' . htmlspecialchars( substr( $text, $i ) ) . '';
-					break;
-				}
-				$tagEndPos = $startPos + strlen( '' ); // past-the-end
-				$accum .= '' . htmlspecialchars( substr( $text, $i, $tagEndPos - $i ) ) . '';
-				$i = $tagEndPos;
-				$findOnlyinclude = false;
-			}
-
-			if ( $fakeLineStart ) {
-				$found = 'line-start';
-				$curChar = '';
-			} else {
-				# Find next opening brace, closing brace or pipe
-				$search = $searchBase;
-				if ( $stack->top === false ) {
-					$currentClosing = '';
-				} else {
-					$currentClosing = $stack->top->close;
-					$search .= $currentClosing;
-				}
-				if ( $findPipe ) {
-					$search .= '|';
-				}
-				if ( $findEquals ) {
-					// First equals will be for the template
-					$search .= '=';
-				}
-				$rule = null;
-				# Output literal section, advance input counter
-				$literalLength = strcspn( $text, $search, $i );
-				if ( $literalLength > 0 ) {
-					$accum .= htmlspecialchars( substr( $text, $i, $literalLength ) );
-					$i += $literalLength;
-				}
-				if ( $i >= strlen( $text ) ) {
-					if ( $currentClosing == "\n" ) {
-						// Do a past-the-end run to finish off the heading
-						$curChar = '';
-						$found = 'line-end';
-					} else {
-						# All done
-						break;
-					}
-				} else {
-					$curChar = $text[$i];
-					if ( $curChar == '|' ) {
-						$found = 'pipe';
-					} elseif ( $curChar == '=' ) {
-						$found = 'equals';
-					} elseif ( $curChar == '<' ) {
-						$found = 'angle';
-					} elseif ( $curChar == "\n" ) {
-						if ( $inHeading ) {
-							$found = 'line-end';
-						} else {
-							$found = 'line-start';
-						}
-					} elseif ( $curChar == $currentClosing ) {
-						$found = 'close';
-					} elseif ( isset( $rules[$curChar] ) ) {
-						$found = 'open';
-						$rule = $rules[$curChar];
-					} else {
-						# Some versions of PHP have a strcspn which stops on null characters
-						# Ignore and continue
-						++$i;
-						continue;
-					}
-				}
-			}
-
-			if ( $found == 'angle' ) {
-				$matches = false;
-				// Handle 
-				if ( $enableOnlyinclude && substr( $text, $i, strlen( '' ) ) == '' ) {
-					$findOnlyinclude = true;
-					continue;
-				}
-
-				// Determine element name
-				if ( !preg_match( $elementsRegex, $text, $matches, 0, $i + 1 ) ) {
-					// Element name missing or not listed
-					$accum .= '<';
-					++$i;
-					continue;
-				}
-				// Handle comments
-				if ( isset( $matches[2] ) && $matches[2] == '!--' ) {
-					// To avoid leaving blank lines, when a comment is both preceded
-					// and followed by a newline (ignoring spaces), trim leading and
-					// trailing spaces and one of the newlines.
-
-					// Find the end
-					$endPos = strpos( $text, '-->', $i + 4 );
-					if ( $endPos === false ) {
-						// Unclosed comment in input, runs to end
-						$inner = substr( $text, $i );
-						$accum .= '' . htmlspecialchars( $inner ) . '';
-						$i = strlen( $text );
-					} else {
-						// Search backwards for leading whitespace
-						$wsStart = $i ? ( $i - strspn( $revText, ' ', strlen( $text ) - $i ) ) : 0;
-						// Search forwards for trailing whitespace
-						// $wsEnd will be the position of the last space
-						$wsEnd = $endPos + 2 + strspn( $text, ' ', $endPos + 3 );
-						// Eat the line if possible
-						// TODO: This could theoretically be done if $wsStart == 0, i.e. for comments at
-						// the overall start. That's not how Sanitizer::removeHTMLcomments() did it, but
-						// it's a possible beneficial b/c break.
-						if ( $wsStart > 0 && substr( $text, $wsStart - 1, 1 ) == "\n"
-							&& substr( $text, $wsEnd + 1, 1 ) == "\n" )
-						{
-							$startPos = $wsStart;
-							$endPos = $wsEnd + 1;
-							// Remove leading whitespace from the end of the accumulator
-							// Sanity check first though
-							$wsLength = $i - $wsStart;
-							if ( $wsLength > 0 && substr( $accum, -$wsLength ) === str_repeat( ' ', $wsLength ) ) {
-								$accum = substr( $accum, 0, -$wsLength );
-							}
-							// Do a line-start run next time to look for headings after the comment
-							$fakeLineStart = true;
-						} else {
-							// No line to eat, just take the comment itself
-							$startPos = $i;
-							$endPos += 2;
-						}
-
-						if ( $stack->top ) {
-							$part = $stack->top->getCurrentPart();
-							if ( isset( $part->commentEnd ) && $part->commentEnd == $wsStart - 1 ) {
-								// Comments abutting, no change in visual end
-								$part->commentEnd = $wsEnd;
-							} else {
-								$part->visualEnd = $wsStart;
-								$part->commentEnd = $endPos;
-							}
-						}
-						$i = $endPos + 1;
-						$inner = substr( $text, $startPos, $endPos - $startPos + 1 );
-						$accum .= '' . htmlspecialchars( $inner ) . '';
-					}
-					continue;
-				}
-				$name = $matches[1];
-				$lowerName = strtolower( $name );
-				$attrStart = $i + strlen( $name ) + 1;
-
-				// Find end of tag
-				$tagEndPos = $noMoreGT ? false : strpos( $text, '>', $attrStart );
-				if ( $tagEndPos === false ) {
-					// Infinite backtrack
-					// Disable tag search to prevent worst-case O(N^2) performance
-					$noMoreGT = true;
-					$accum .= '<';
-					++$i;
-					continue;
-				}
-
-				// Handle ignored tags
-				if ( in_array( $lowerName, $ignoredTags ) ) {
-					$accum .= '' . htmlspecialchars( substr( $text, $i, $tagEndPos - $i + 1 ) ) . '';
-					$i = $tagEndPos + 1;
-					continue;
-				}
-
-				$tagStartPos = $i;
-				if ( $text[$tagEndPos-1] == '/' ) {
-					$attrEnd = $tagEndPos - 1;
-					$inner = null;
-					$i = $tagEndPos + 1;
-					$close = '';
-				} else {
-					$attrEnd = $tagEndPos;
-					// Find closing tag
-					if ( preg_match( "/<\/$name\s*>/i", $text, $matches, PREG_OFFSET_CAPTURE, $tagEndPos + 1 ) ) {
-						$inner = substr( $text, $tagEndPos + 1, $matches[0][1] - $tagEndPos - 1 );
-						$i = $matches[0][1] + strlen( $matches[0][0] );
-						$close = '' . htmlspecialchars( $matches[0][0] ) . '';
-					} else {
-						// No end tag -- let it run out to the end of the text.
-						$inner = substr( $text, $tagEndPos + 1 );
-						$i = strlen( $text );
-						$close = '';
-					}
-				}
-				//  and  just become  tags
-				if ( in_array( $lowerName, $ignoredElements ) ) {
-					$accum .= '' . htmlspecialchars( substr( $text, $tagStartPos, $i - $tagStartPos ) )
-						. '';
-					continue;
-				}
-
-				$accum .= '';
-				if ( $attrEnd <= $attrStart ) {
-					$attr = '';
-				} else {
-					$attr = substr( $text, $attrStart, $attrEnd - $attrStart );
-				}
-				$accum .= '' . htmlspecialchars( $name ) . '' .
-					// Note that the attr element contains the whitespace between name and attribute,
-					// this is necessary for precise reconstruction during pre-save transform.
-					'' . htmlspecialchars( $attr ) . '';
-				if ( $inner !== null ) {
-					$accum .= '' . htmlspecialchars( $inner ) . '';
-				}
-				$accum .= $close . '';
-			}
-
-			elseif ( $found == 'line-start' ) {
-				// Is this the start of a heading?
-				// Line break belongs before the heading element in any case
-				if ( $fakeLineStart ) {
-					$fakeLineStart = false;
-				} else {
-					$accum .= $curChar;
-					$i++;
-				}
-
-				$count = strspn( $text, '=', $i, 6 );
-				if ( $count == 1 && $findEquals ) {
-					// DWIM: This looks kind of like a name/value separator
-					// Let's let the equals handler have it and break the potential heading
-					// This is heuristic, but AFAICT the methods for completely correct disambiguation are very complex.
-				} elseif ( $count > 0 ) {
-					$piece = array(
-						'open' => "\n",
-						'close' => "\n",
-						'parts' => array( new PPDPart( str_repeat( '=', $count ) ) ),
-						'startPos' => $i,
-						'count' => $count );
-					$stack->push( $piece );
-					$accum =& $stack->getAccum();
-					extract( $stack->getFlags() );
-					$i += $count;
-				}
-			}
-
-			elseif ( $found == 'line-end' ) {
-				$piece = $stack->top;
-				// A heading must be open, otherwise \n wouldn't have been in the search list
-				assert( $piece->open == "\n" );
-				$part = $piece->getCurrentPart();
-				// Search back through the input to see if it has a proper close
-				// Do this using the reversed string since the other solutions (end anchor, etc.) are inefficient
-				$wsLength = strspn( $revText, " \t", strlen( $text ) - $i );
-				$searchStart = $i - $wsLength;
-				if ( isset( $part->commentEnd ) && $searchStart - 1 == $part->commentEnd ) {
-					// Comment found at line end
-					// Search for equals signs before the comment
-					$searchStart = $part->visualEnd;
-					$searchStart -= strspn( $revText, " \t", strlen( $text ) - $searchStart );
-				}
-				$count = $piece->count;
-				$equalsLength = strspn( $revText, '=', strlen( $text ) - $searchStart );
-				if ( $equalsLength > 0 ) {
-					if ( $i - $equalsLength == $piece->startPos ) {
-						// This is just a single string of equals signs on its own line
-						// Replicate the doHeadings behaviour /={count}(.+)={count}/
-						// First find out how many equals signs there really are (don't stop at 6)
-						$count = $equalsLength;
-						if ( $count < 3 ) {
-							$count = 0;
-						} else {
-							$count = min( 6, intval( ( $count - 1 ) / 2 ) );
-						}
-					} else {
-						$count = min( $equalsLength, $count );
-					}
-					if ( $count > 0 ) {
-						// Normal match, output 
-						$element = "$accum";
-						$headingIndex++;
-					} else {
-						// Single equals sign on its own line, count=0
-						$element = $accum;
-					}
-				} else {
-					// No match, no , just pass down the inner text
-					$element = $accum;
-				}
-				// Unwind the stack
-				$stack->pop();
-				$accum =& $stack->getAccum();
-				extract( $stack->getFlags() );
-
-				// Append the result to the enclosing accumulator
-				$accum .= $element;
-				// Note that we do NOT increment the input pointer.
-				// This is because the closing linebreak could be the opening linebreak of
-				// another heading. Infinite loops are avoided because the next iteration MUST
-				// hit the heading open case above, which unconditionally increments the
-				// input pointer.
-			}
-
-			elseif ( $found == 'open' ) {
-				# count opening brace characters
-				$count = strspn( $text, $curChar, $i );
-
-				# we need to add to stack only if opening brace count is enough for one of the rules
-				if ( $count >= $rule['min'] ) {
-					# Add it to the stack
-					$piece = array(
-						'open' => $curChar,
-						'close' => $rule['end'],
-						'count' => $count,
-						'lineStart' => ($i > 0 && $text[$i-1] == "\n"),
-					);
-
-					$stack->push( $piece );
-					$accum =& $stack->getAccum();
-					extract( $stack->getFlags() );
-				} else {
-					# Add literal brace(s)
-					$accum .= htmlspecialchars( str_repeat( $curChar, $count ) );
-				}
-				$i += $count;
-			}
-
-			elseif ( $found == 'close' ) {
-				$piece = $stack->top;
-				# lets check if there are enough characters for closing brace
-				$maxCount = $piece->count;
-				$count = strspn( $text, $curChar, $i, $maxCount );
-
-				# check for maximum matching characters (if there are 5 closing
-				# characters, we will probably need only 3 - depending on the rules)
-				$matchingCount = 0;
-				$rule = $rules[$piece->open];
-				if ( $count > $rule['max'] ) {
-					# The specified maximum exists in the callback array, unless the caller
-					# has made an error
-					$matchingCount = $rule['max'];
-				} else {
-					# Count is less than the maximum
-					# Skip any gaps in the callback array to find the true largest match
-					# Need to use array_key_exists not isset because the callback can be null
-					$matchingCount = $count;
-					while ( $matchingCount > 0 && !array_key_exists( $matchingCount, $rule['names'] ) ) {
-						--$matchingCount;
-					}
-				}
-
-				if ($matchingCount <= 0) {
-					# No matching element found in callback array
-					# Output a literal closing brace and continue
-					$accum .= htmlspecialchars( str_repeat( $curChar, $count ) );
-					$i += $count;
-					continue;
-				}
-				$name = $rule['names'][$matchingCount];
-				if ( $name === null ) {
-					// No element, just literal text
-					$element = $piece->breakSyntax( $matchingCount ) . str_repeat( $rule['end'], $matchingCount );
-				} else {
-					# Create XML element
-					# Note: $parts is already XML, does not need to be encoded further
-					$parts = $piece->parts;
-					$title = $parts[0]->out;
-					unset( $parts[0] );
-
-					# The invocation is at the start of the line if lineStart is set in
-					# the stack, and all opening brackets are used up.
-					if ( $maxCount == $matchingCount && !empty( $piece->lineStart ) ) {
-						$attr = ' lineStart="1"';
-					} else {
-						$attr = '';
-					}
-
-					$element = "<$name$attr>";
-					$element .= "$title";
-					$argIndex = 1;
-					foreach ( $parts as $partIndex => $part ) {
-						if ( isset( $part->eqpos ) ) {
-							$argName = substr( $part->out, 0, $part->eqpos );
-							$argValue = substr( $part->out, $part->eqpos + 1 );
-							$element .= "$argName=$argValue";
-						} else {
-							$element .= "{$part->out}";
-							$argIndex++;
-						}
-					}
-					$element .= "";
-				}
-
-				# Advance input pointer
-				$i += $matchingCount;
-
-				# Unwind the stack
-				$stack->pop();
-				$accum =& $stack->getAccum();
-
-				# Re-add the old stack element if it still has unmatched opening characters remaining
-				if ($matchingCount < $piece->count) {
-					$piece->parts = array( new PPDPart );
-					$piece->count -= $matchingCount;
-					# do we still qualify for any callback with remaining count?
-					$names = $rules[$piece->open]['names'];
-					$skippedBraces = 0;
-					$enclosingAccum =& $accum;
-					while ( $piece->count ) {
-						if ( array_key_exists( $piece->count, $names ) ) {
-							$stack->push( $piece );
-							$accum =& $stack->getAccum();
-							break;
-						}
-						--$piece->count;
-						$skippedBraces ++;
-					}
-					$enclosingAccum .= str_repeat( $piece->open, $skippedBraces );
-				}
-
-				extract( $stack->getFlags() );
-
-				# Add XML element to the enclosing accumulator
-				$accum .= $element;
-			}
-
-			elseif ( $found == 'pipe' ) {
-				$findEquals = true; // shortcut for getFlags()
-				$stack->addPart();
-				$accum =& $stack->getAccum();
-				++$i;
-			}
-
-			elseif ( $found == 'equals' ) {
-				$findEquals = false; // shortcut for getFlags()
-				$stack->getCurrentPart()->eqpos = strlen( $accum );
-				$accum .= '=';
-				++$i;
-			}
-		}
-
-		# Output any remaining unclosed brackets
-		foreach ( $stack->stack as $piece ) {
-			$stack->rootAccum .= $piece->breakSyntax();
-		}
-		$stack->rootAccum .= '';
-		$xml = $stack->rootAccum;
-
-		wfProfileOut( __METHOD__.'-makexml' );
-		wfProfileIn( __METHOD__.'-loadXML' );
-		$dom = new DOMDocument;
-		wfSuppressWarnings();
-		$result = $dom->loadXML( $xml );
-		wfRestoreWarnings();
-		if ( !$result ) {
-			// Try running the XML through UtfNormal to get rid of invalid characters
-			$xml = UtfNormal::cleanUp( $xml );
-			$result = $dom->loadXML( $xml );
-			if ( !$result ) {
-				throw new MWException( __METHOD__.' generated invalid XML' );
-			}
-		}
-		$obj = new PPNode_DOM( $dom->documentElement );
-		wfProfileOut( __METHOD__.'-loadXML' );
-		wfProfileOut( __METHOD__ );
-		return $obj;
-	}
-}
-
-/**
- * Stack class to help Preprocessor::preprocessToObj()
- * @ingroup Parser
- */
-class PPDStack {
-	var $stack, $rootAccum, $top;
-	var $out;
-	var $elementClass = 'PPDStackElement';
-
-	static $false = false;
-
-	function __construct() {
-		$this->stack = array();
-		$this->top = false;
-		$this->rootAccum = '';
-		$this->accum =& $this->rootAccum;
-	}
-
-	function count() {
-		return count( $this->stack );
-	}
-
-	function &getAccum() {
-		return $this->accum;
-	}
-
-	function getCurrentPart() {
-		if ( $this->top === false ) {
-			return false;
-		} else {
-			return $this->top->getCurrentPart();
-		}
-	}
-
-	function push( $data ) {
-		if ( $data instanceof $this->elementClass ) {
-			$this->stack[] = $data;
-		} else {
-			$class = $this->elementClass;
-			$this->stack[] = new $class( $data );
-		}
-		$this->top = $this->stack[ count( $this->stack ) - 1 ];
-		$this->accum =& $this->top->getAccum();
-	}
-
-	function pop() {
-		if ( !count( $this->stack ) ) {
-			throw new MWException( __METHOD__.': no elements remaining' );
-		}
-		$temp = array_pop( $this->stack );
-
-		if ( count( $this->stack ) ) {
-			$this->top = $this->stack[ count( $this->stack ) - 1 ];
-			$this->accum =& $this->top->getAccum();
-		} else {
-			$this->top = self::$false;
-			$this->accum =& $this->rootAccum;
-		}
-		return $temp;
-	}
-
-	function addPart( $s = '' ) {
-		$this->top->addPart( $s );
-		$this->accum =& $this->top->getAccum();
-	}
-
-	function getFlags() {
-		if ( !count( $this->stack ) ) {
-			return array(
-				'findEquals' => false,
-				'findPipe' => false,
-				'inHeading' => false,
-			);
-		} else {
-			return $this->top->getFlags();
-		}
-	}
-}
-
-/**
- * @ingroup Parser
- */
-class PPDStackElement {
-	var $open,		        // Opening character (\n for heading)
-		$close,     	    // Matching closing character
-		$count,             // Number of opening characters found (number of "=" for heading)
-		$parts,             // Array of PPDPart objects describing pipe-separated parts.
-		$lineStart;         // True if the open char appeared at the start of the input line. Not set for headings.
-
-	var $partClass = 'PPDPart';
-
-	function __construct( $data = array() ) {
-		$class = $this->partClass;
-		$this->parts = array( new $class );
-
-		foreach ( $data as $name => $value ) {
-			$this->$name = $value;
-		}
-	}
-
-	function &getAccum() {
-		return $this->parts[count($this->parts) - 1]->out;
-	}
-
-	function addPart( $s = '' ) {
-		$class = $this->partClass;
-		$this->parts[] = new $class( $s );
-	}
-
-	function getCurrentPart() {
-		return $this->parts[count($this->parts) - 1];
-	}
-
-	function getFlags() {
-		$partCount = count( $this->parts );
-		$findPipe = $this->open != "\n" && $this->open != '[';
-		return array(
-			'findPipe' => $findPipe,
-			'findEquals' => $findPipe && $partCount > 1 && !isset( $this->parts[$partCount - 1]->eqpos ),
-			'inHeading' => $this->open == "\n",
-		);
-	}
-
-	/**
-	 * Get the output string that would result if the close is not found.
-	 */
-	function breakSyntax( $openingCount = false ) {
-		if ( $this->open == "\n" ) {
-			$s = $this->parts[0]->out;
-		} else {
-			if ( $openingCount === false ) {
-				$openingCount = $this->count;
-			}
-			$s = str_repeat( $this->open, $openingCount );
-			$first = true;
-			foreach ( $this->parts as $part ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$s .= '|';
-				}
-				$s .= $part->out;
-			}
-		}
-		return $s;
-	}
-}
-
-/**
- * @ingroup Parser
- */
-class PPDPart {
-	var $out; // Output accumulator string
-
-	// Optional member variables:
-	//   eqpos        Position of equals sign in output accumulator
-	//   commentEnd   Past-the-end input pointer for the last comment encountered
-	//   visualEnd    Past-the-end input pointer for the end of the accumulator minus comments
-
-	function __construct( $out = '' ) {
-		$this->out = $out;
-	}
-}
-
-/**
- * An expansion frame, used as a context to expand the result of preprocessToObj()
- * @ingroup Parser
- */
-class PPFrame_DOM implements PPFrame {
-	var $preprocessor, $parser, $title;
-	var $titleCache;
-
-	/**
-	 * Hashtable listing templates which are disallowed for expansion in this frame,
-	 * having been encountered previously in parent frames.
-	 */
-	var $loopCheckHash;
-
-	/**
-	 * Recursion depth of this frame, top = 0
-	 */
-	var $depth;
-
-
-	/**
-	 * Construct a new preprocessor frame.
-	 * @param Preprocessor $preprocessor The parent preprocessor
-	 */
-	function __construct( $preprocessor ) {
-		$this->preprocessor = $preprocessor;
-		$this->parser = $preprocessor->parser;
-		$this->title = $this->parser->mTitle;
-		$this->titleCache = array( $this->title ? $this->title->getPrefixedDBkey() : false );
-		$this->loopCheckHash = array();
-		$this->depth = 0;
-	}
-
-	/**
-	 * Create a new child frame
-	 * $args is optionally a multi-root PPNode or array containing the template arguments
-	 */
-	function newChild( $args = false, $title = false ) {
-		$namedArgs = array();
-		$numberedArgs = array();
-		if ( $title === false ) {
-			$title = $this->title;
-		}
-		if ( $args !== false ) {
-			$xpath = false;
-			if ( $args instanceof PPNode ) {
-				$args = $args->node;
-			}
-			foreach ( $args as $arg ) {
-				if ( !$xpath ) {
-					$xpath = new DOMXPath( $arg->ownerDocument );
-				}
-
-				$nameNodes = $xpath->query( 'name', $arg );
-				$value = $xpath->query( 'value', $arg );
-				if ( $nameNodes->item( 0 )->hasAttributes() ) {
-					// Numbered parameter
-					$index = $nameNodes->item( 0 )->attributes->getNamedItem( 'index' )->textContent;
-					$numberedArgs[$index] = $value->item( 0 );
-					unset( $namedArgs[$index] );
-				} else {
-					// Named parameter
-					$name = trim( $this->expand( $nameNodes->item( 0 ), PPFrame::STRIP_COMMENTS ) );
-					$namedArgs[$name] = $value->item( 0 );
-					unset( $numberedArgs[$name] );
-				}
-			}
-		}
-		return new PPTemplateFrame_DOM( $this->preprocessor, $this, $numberedArgs, $namedArgs, $title );
-	}
-
-	function expand( $root, $flags = 0 ) {
-		static $depth = 0;
-		if ( is_string( $root ) ) {
-			return $root;
-		}
-
-		if ( ++$this->parser->mPPNodeCount > $this->parser->mOptions->mMaxPPNodeCount )
-		{
-			return 'Node-count limit exceeded';
-		}
-
-		if ( $depth > $this->parser->mOptions->mMaxPPExpandDepth ) {
-			return 'Expansion depth limit exceeded';
-		}
-		++$depth;
-
-		if ( $root instanceof PPNode_DOM ) {
-			$root = $root->node;
-		}
-		if ( $root instanceof DOMDocument ) {
-			$root = $root->documentElement;
-		}
-
-		$outStack = array( '', '' );
-		$iteratorStack = array( false, $root );
-		$indexStack = array( 0, 0 );
-
-		while ( count( $iteratorStack ) > 1 ) {
-			$level = count( $outStack ) - 1;
-			$iteratorNode =& $iteratorStack[ $level ];
-			$out =& $outStack[$level];
-			$index =& $indexStack[$level];
-
-			if ( $iteratorNode instanceof PPNode_DOM ) $iteratorNode = $iteratorNode->node;
-
-			if ( is_array( $iteratorNode ) ) {
-				if ( $index >= count( $iteratorNode ) ) {
-					// All done with this iterator
-					$iteratorStack[$level] = false;
-					$contextNode = false;
-				} else {
-					$contextNode = $iteratorNode[$index];
-					$index++;
-				}
-			} elseif ( $iteratorNode instanceof DOMNodeList ) {
-				if ( $index >= $iteratorNode->length ) {
-					// All done with this iterator
-					$iteratorStack[$level] = false;
-					$contextNode = false;
-				} else {
-					$contextNode = $iteratorNode->item( $index );
-					$index++;
-				}
-			} else {
-				// Copy to $contextNode and then delete from iterator stack,
-				// because this is not an iterator but we do have to execute it once
-				$contextNode = $iteratorStack[$level];
-				$iteratorStack[$level] = false;
-			}
-
-			if ( $contextNode instanceof PPNode_DOM ) $contextNode = $contextNode->node;
-
-			$newIterator = false;
-
-			if ( $contextNode === false ) {
-				// nothing to do
-			} elseif ( is_string( $contextNode ) ) {
-				$out .= $contextNode;
-			} elseif ( is_array( $contextNode ) || $contextNode instanceof DOMNodeList ) {
-				$newIterator = $contextNode;
-			} elseif ( $contextNode instanceof DOMNode ) {
-				if ( $contextNode->nodeType == XML_TEXT_NODE ) {
-					$out .= $contextNode->nodeValue;
-				} elseif ( $contextNode->nodeName == 'template' ) {
-					# Double-brace expansion
-					$xpath = new DOMXPath( $contextNode->ownerDocument );
-					$titles = $xpath->query( 'title', $contextNode );
-					$title = $titles->item( 0 );
-					$parts = $xpath->query( 'part', $contextNode );
-					if ( $flags & self::NO_TEMPLATES ) {
-						$newIterator = $this->virtualBracketedImplode( '{{', '|', '}}', $title, $parts );
-					} else {
-						$lineStart = $contextNode->getAttribute( 'lineStart' );
-						$params = array(
-							'title' => new PPNode_DOM( $title ),
-							'parts' => new PPNode_DOM( $parts ),
-							'lineStart' => $lineStart );
-						$ret = $this->parser->braceSubstitution( $params, $this );
-						if ( isset( $ret['object'] ) ) {
-							$newIterator = $ret['object'];
-						} else {
-							$out .= $ret['text'];
-						}
-					}
-				} elseif ( $contextNode->nodeName == 'tplarg' ) {
-					# Triple-brace expansion
-					$xpath = new DOMXPath( $contextNode->ownerDocument );
-					$titles = $xpath->query( 'title', $contextNode );
-					$title = $titles->item( 0 );
-					$parts = $xpath->query( 'part', $contextNode );
-					if ( $flags & self::NO_ARGS ) {
-						$newIterator = $this->virtualBracketedImplode( '{{{', '|', '}}}', $title, $parts );
-					} else {
-						$params = array(
-							'title' => new PPNode_DOM( $title ),
-							'parts' => new PPNode_DOM( $parts ) );
-						$ret = $this->parser->argSubstitution( $params, $this );
-						if ( isset( $ret['object'] ) ) {
-							$newIterator = $ret['object'];
-						} else {
-							$out .= $ret['text'];
-						}
-					}
-				} elseif ( $contextNode->nodeName == 'comment' ) {
-					# HTML-style comment
-					# Remove it in HTML, pre+remove and STRIP_COMMENTS modes
-					if ( $this->parser->ot['html']
-						|| ( $this->parser->ot['pre'] && $this->parser->mOptions->getRemoveComments() )
-						|| ( $flags & self::STRIP_COMMENTS ) )
-					{
-						$out .= '';
-					}
-					# Add a strip marker in PST mode so that pstPass2() can run some old-fashioned regexes on the result
-					# Not in RECOVER_COMMENTS mode (extractSections) though
-					elseif ( $this->parser->ot['wiki'] && ! ( $flags & self::RECOVER_COMMENTS ) ) {
-						$out .= $this->parser->insertStripItem( $contextNode->textContent );
-					}
-					# Recover the literal comment in RECOVER_COMMENTS and pre+no-remove
-					else {
-						$out .= $contextNode->textContent;
-					}
-				} elseif ( $contextNode->nodeName == 'ignore' ) {
-					# Output suppression used by  etc.
-					# OT_WIKI will only respect  in substed templates.
-					# The other output types respect it unless NO_IGNORE is set.
-					# extractSections() sets NO_IGNORE and so never respects it.
-					if ( ( !isset( $this->parent ) && $this->parser->ot['wiki'] ) || ( $flags & self::NO_IGNORE ) ) {
-						$out .= $contextNode->textContent;
-					} else {
-						$out .= '';
-					}
-				} elseif ( $contextNode->nodeName == 'ext' ) {
-					# Extension tag
-					$xpath = new DOMXPath( $contextNode->ownerDocument );
-					$names = $xpath->query( 'name', $contextNode );
-					$attrs = $xpath->query( 'attr', $contextNode );
-					$inners = $xpath->query( 'inner', $contextNode );
-					$closes = $xpath->query( 'close', $contextNode );
-					$params = array(
-						'name' => new PPNode_DOM( $names->item( 0 ) ),
-						'attr' => $attrs->length > 0 ? new PPNode_DOM( $attrs->item( 0 ) ) : null,
-						'inner' => $inners->length > 0 ? new PPNode_DOM( $inners->item( 0 ) ) : null,
-						'close' => $closes->length > 0 ? new PPNode_DOM( $closes->item( 0 ) ) : null,
-					);
-					$out .= $this->parser->extensionSubstitution( $params, $this );
-				} elseif ( $contextNode->nodeName == 'h' ) {
-					# Heading
-					$s = $this->expand( $contextNode->childNodes, $flags );
-
-                    # Insert a heading marker only for  children of 
-                    # This is to stop extractSections from going over multiple tree levels
-                    if ( $contextNode->parentNode->nodeName == 'root'
-                      && $this->parser->ot['html'] )
-                    {
-						# Insert heading index marker
-						$headingIndex = $contextNode->getAttribute( 'i' );
-						$titleText = $this->title->getPrefixedDBkey();
-						$this->parser->mHeadings[] = array( $titleText, $headingIndex );
-						$serial = count( $this->parser->mHeadings ) - 1;
-						$marker = "{$this->parser->mUniqPrefix}-h-$serial-" . Parser::MARKER_SUFFIX;
-						$count = $contextNode->getAttribute( 'level' );
-						$s = substr( $s, 0, $count ) . $marker . substr( $s, $count );
-						$this->parser->mStripState->general->setPair( $marker, '' );
-					}
-					$out .= $s;
-				} else {
-					# Generic recursive expansion
-					$newIterator = $contextNode->childNodes;
-				}
-			} else {
-				throw new MWException( __METHOD__.': Invalid parameter type' );
-			}
-
-			if ( $newIterator !== false ) {
-				if ( $newIterator instanceof PPNode_DOM ) {
-					$newIterator = $newIterator->node;
-				}
-				$outStack[] = '';
-				$iteratorStack[] = $newIterator;
-				$indexStack[] = 0;
-			} elseif ( $iteratorStack[$level] === false ) {
-				// Return accumulated value to parent
-				// With tail recursion
-				while ( $iteratorStack[$level] === false && $level > 0 ) {
-					$outStack[$level - 1] .= $out;
-					array_pop( $outStack );
-					array_pop( $iteratorStack );
-					array_pop( $indexStack );
-					$level--;
-				}
-			}
-		}
-		--$depth;
-		return $outStack[0];
-	}
-
-	function implodeWithFlags( $sep, $flags /*, ... */ ) {
-		$args = array_slice( func_get_args(), 2 );
-
-		$first = true;
-		$s = '';
-		foreach ( $args as $root ) {
-			if ( $root instanceof PPNode_DOM ) $root = $root->node;
-			if ( !is_array( $root ) && !( $root instanceof DOMNodeList ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$s .= $sep;
-				}
-				$s .= $this->expand( $node, $flags );
-			}
-		}
-		return $s;
-	}
-
-	/**
-	 * Implode with no flags specified
-	 * This previously called implodeWithFlags but has now been inlined to reduce stack depth
-	 */
-	function implode( $sep /*, ... */ ) {
-		$args = array_slice( func_get_args(), 1 );
-
-		$first = true;
-		$s = '';
-		foreach ( $args as $root ) {
-			if ( $root instanceof PPNode_DOM ) $root = $root->node;
-			if ( !is_array( $root ) && !( $root instanceof DOMNodeList ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$s .= $sep;
-				}
-				$s .= $this->expand( $node );
-			}
-		}
-		return $s;
-	}
-
-	/**
-	 * Makes an object that, when expand()ed, will be the same as one obtained
-	 * with implode()
-	 */
-	function virtualImplode( $sep /*, ... */ ) {
-		$args = array_slice( func_get_args(), 1 );
-		$out = array();
-		$first = true;
-		if ( $root instanceof PPNode_DOM ) $root = $root->node;
-
-		foreach ( $args as $root ) {
-			if ( !is_array( $root ) && !( $root instanceof DOMNodeList ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$out[] = $sep;
-				}
-				$out[] = $node;
-			}
-		}
-		return $out;
-	}
-
-	/**
-	 * Virtual implode with brackets
-	 */
-	function virtualBracketedImplode( $start, $sep, $end /*, ... */ ) {
-		$args = array_slice( func_get_args(), 3 );
-		$out = array( $start );
-		$first = true;
-
-		foreach ( $args as $root ) {
-			if ( $root instanceof PPNode_DOM ) $root = $root->node;
-			if ( !is_array( $root ) && !( $root instanceof DOMNodeList ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$out[] = $sep;
-				}
-				$out[] = $node;
-			}
-		}
-		$out[] = $end;
-		return $out;
-	}
-
-	function __toString() {
-		return 'frame{}';
-	}
-
-	function getPDBK( $level = false ) {
-		if ( $level === false ) {
-			return $this->title->getPrefixedDBkey();
-		} else {
-			return isset( $this->titleCache[$level] ) ? $this->titleCache[$level] : false;
-		}
-	}
-
-	/**
-	 * Returns true if there are no arguments in this frame
-	 */
-	function isEmpty() {
-		return true;
-	}
-
-	function getArgument( $name ) {
-		return false;
-	}
-
-	/**
-	 * Returns true if the infinite loop check is OK, false if a loop is detected
-	 */
-	function loopCheck( $title ) {
-		return !isset( $this->loopCheckHash[$title->getPrefixedDBkey()] );
-	}
-
-	/**
-	 * Return true if the frame is a template frame
-	 */
-	function isTemplate() {
-		return false;
-	}
-}
-
-/**
- * Expansion frame with template arguments
- * @ingroup Parser
- */
-class PPTemplateFrame_DOM extends PPFrame_DOM {
-	var $numberedArgs, $namedArgs, $parent;
-	var $numberedExpansionCache, $namedExpansionCache;
-
-	function __construct( $preprocessor, $parent = false, $numberedArgs = array(), $namedArgs = array(), $title = false ) {
-		$this->preprocessor = $preprocessor;
-		$this->parser = $preprocessor->parser;
-		$this->parent = $parent;
-		$this->numberedArgs = $numberedArgs;
-		$this->namedArgs = $namedArgs;
-		$this->title = $title;
-		$pdbk = $title ? $title->getPrefixedDBkey() : false;
-		$this->titleCache = $parent->titleCache;
-		$this->titleCache[] = $pdbk;
-		$this->loopCheckHash = /*clone*/ $parent->loopCheckHash;
-		if ( $pdbk !== false ) {
-			$this->loopCheckHash[$pdbk] = true;
-		}
-		$this->depth = $parent->depth + 1;
-		$this->numberedExpansionCache = $this->namedExpansionCache = array();
-	}
-
-	function __toString() {
-		$s = 'tplframe{';
-		$first = true;
-		$args = $this->numberedArgs + $this->namedArgs;
-		foreach ( $args as $name => $value ) {
-			if ( $first ) {
-				$first = false;
-			} else {
-				$s .= ', ';
-			}
-			$s .= "\"$name\":\"" .
-				str_replace( '"', '\\"', $value->ownerDocument->saveXML( $value ) ) . '"';
-		}
-		$s .= '}';
-		return $s;
-	}
-	/**
-	 * Returns true if there are no arguments in this frame
-	 */
-	function isEmpty() {
-		return !count( $this->numberedArgs ) && !count( $this->namedArgs );
-	}
-
-	function getNumberedArgument( $index ) {
-		if ( !isset( $this->numberedArgs[$index] ) ) {
-			return false;
-		}
-		if ( !isset( $this->numberedExpansionCache[$index] ) ) {
-			# No trimming for unnamed arguments
-			$this->numberedExpansionCache[$index] = $this->parent->expand( $this->numberedArgs[$index], self::STRIP_COMMENTS );
-		}
-		return $this->numberedExpansionCache[$index];
-	}
-
-	function getNamedArgument( $name ) {
-		if ( !isset( $this->namedArgs[$name] ) ) {
-			return false;
-		}
-		if ( !isset( $this->namedExpansionCache[$name] ) ) {
-			# Trim named arguments post-expand, for backwards compatibility
-			$this->namedExpansionCache[$name] = trim(
-				$this->parent->expand( $this->namedArgs[$name], self::STRIP_COMMENTS ) );
-		}
-		return $this->namedExpansionCache[$name];
-	}
-
-	function getArgument( $name ) {
-		$text = $this->getNumberedArgument( $name );
-		if ( $text === false ) {
-			$text = $this->getNamedArgument( $name );
-		}
-		return $text;
-	}
-
-	/**
-	 * Return true if the frame is a template frame
-	 */
-	function isTemplate() {
-		return true;
-	}
-}
-
-/**
- * @ingroup Parser
- */
-class PPNode_DOM implements PPNode {
-	var $node;
-
-	function __construct( $node, $xpath = false ) {
-		$this->node = $node;
-	}
-
-	function __get( $name ) {
-		if ( $name == 'xpath' ) {
-			$this->xpath = new DOMXPath( $this->node->ownerDocument );
-		}
-		return $this->xpath;
-	}
-
-	function __toString() {
-		if ( $this->node instanceof DOMNodeList ) {
-			$s = '';
-			foreach ( $this->node as $node ) {
-				$s .= $node->ownerDocument->saveXML( $node );
-			}
-		} else {
-			$s = $this->node->ownerDocument->saveXML( $this->node );
-		}
-		return $s;
-	}
-
-	function getChildren() {
-		return $this->node->childNodes ? new self( $this->node->childNodes ) : false;
-	}
-
-	function getFirstChild() {
-		return $this->node->firstChild ? new self( $this->node->firstChild ) : false;
-	}
-
-	function getNextSibling() {
-		return $this->node->nextSibling ? new self( $this->node->nextSibling ) : false;
-	}
-
-	function getChildrenOfType( $type ) {
-		return new self( $this->xpath->query( $type, $this->node ) );
-	}
-
-	function getLength() {
-		if ( $this->node instanceof DOMNodeList ) {
-			return $this->node->length;
-		} else {
-			return false;
-		}
-	}
-
-	function item( $i ) {
-		$item = $this->node->item( $i );
-		return $item ? new self( $item ) : false;
-	}
-
-	function getName() {
-		if ( $this->node instanceof DOMNodeList ) {
-			return '#nodelist';
-		} else {
-			return $this->node->nodeName;
-		}
-	}
-
-	/**
-	 * Split a  node into an associative array containing:
-	 *    name          PPNode name
-	 *    index         String index
-	 *    value         PPNode value
-	 */
-	function splitArg() {
-		$names = $this->xpath->query( 'name', $this->node );
-		$values = $this->xpath->query( 'value', $this->node );
-		if ( !$names->length || !$values->length ) {
-			throw new MWException( 'Invalid brace node passed to ' . __METHOD__ );
-		}
-		$name = $names->item( 0 );
-		$index = $name->getAttribute( 'index' );
-		return array(
-			'name' => new self( $name ),
-			'index' => $index,
-			'value' => new self( $values->item( 0 ) ) );
-	}
-
-	/**
-	 * Split an  node into an associative array containing name, attr, inner and close
-	 * All values in the resulting array are PPNodes. Inner and close are optional.
-	 */
-	function splitExt() {
-		$names = $this->xpath->query( 'name', $this->node );
-		$attrs = $this->xpath->query( 'attr', $this->node );
-		$inners = $this->xpath->query( 'inner', $this->node );
-		$closes = $this->xpath->query( 'close', $this->node );
-		if ( !$names->length || !$attrs->length ) {
-			throw new MWException( 'Invalid ext node passed to ' . __METHOD__ );
-		}
-		$parts = array(
-			'name' => new self( $names->item( 0 ) ),
-			'attr' => new self( $attrs->item( 0 ) ) );
-		if ( $inners->length ) {
-			$parts['inner'] = new self( $inners->item( 0 ) );
-		}
-		if ( $closes->length ) {
-			$parts['close'] = new self( $closes->item( 0 ) );
-		}
-		return $parts;
-	}
-
-	/**
-	 * Split a  node
-	 */
-	function splitHeading() {
-		if ( !$this->nodeName == 'h' ) {
-			throw new MWException( 'Invalid h node passed to ' . __METHOD__ );
-		}
-		return array(
-			'i' => $this->node->getAttribute( 'i' ),
-			'level' => $this->node->getAttribute( 'level' ),
-			'contents' => $this->getChildren()
-		);
-	}
-}
diff --git a/includes/Preprocessor_Hash.php b/includes/Preprocessor_Hash.php
deleted file mode 100644
index dc3378832a..0000000000
--- a/includes/Preprocessor_Hash.php
+++ /dev/null
@@ -1,1497 +0,0 @@
- nodes that aren't at the top are replaced with 
- * @ingroup Parser
- */
-class Preprocessor_Hash implements Preprocessor {
-	var $parser;
-
-	function __construct( $parser ) {
-		$this->parser = $parser;
-	}
-
-	function newFrame() {
-		return new PPFrame_Hash( $this );
-	}
-
-	/**
-	 * Preprocess some wikitext and return the document tree.
-	 * This is the ghost of Parser::replace_variables().
-	 *
-	 * @param string $text The text to parse
-	 * @param integer flags Bitwise combination of:
-	 *          Parser::PTD_FOR_INCLUSION    Handle / as if the text is being
-	 *                                     included. Default is to assume a direct page view.
-	 *
-	 * The generated DOM tree must depend only on the input text and the flags.
-	 * The DOM tree must be the same in OT_HTML and OT_WIKI mode, to avoid a regression of bug 4899.
-	 *
-	 * Any flag added to the $flags parameter here, or any other parameter liable to cause a
-	 * change in the DOM tree for a given text, must be passed through the section identifier
-	 * in the section edit link and thus back to extractSections().
-	 *
-	 * The output of this function is currently only cached in process memory, but a persistent
-	 * cache may be implemented at a later date which takes further advantage of these strict
-	 * dependency requirements.
-	 *
-	 * @private
-	 */
-	function preprocessToObj( $text, $flags = 0 ) {
-		wfProfileIn( __METHOD__ );
-
-		$rules = array(
-			'{' => array(
-				'end' => '}',
-				'names' => array(
-					2 => 'template',
-					3 => 'tplarg',
-				),
-				'min' => 2,
-				'max' => 3,
-			),
-			'[' => array(
-				'end' => ']',
-				'names' => array( 2 => null ),
-				'min' => 2,
-				'max' => 2,
-			)
-		);
-
-		$forInclusion = $flags & Parser::PTD_FOR_INCLUSION;
-
-		$xmlishElements = $this->parser->getStripList();
-		$enableOnlyinclude = false;
-		if ( $forInclusion ) {
-			$ignoredTags = array( 'includeonly', '/includeonly' );
-			$ignoredElements = array( 'noinclude' );
-			$xmlishElements[] = 'noinclude';
-			if ( strpos( $text, '' ) !== false && strpos( $text, '' ) !== false ) {
-				$enableOnlyinclude = true;
-			}
-		} else {
-			$ignoredTags = array( 'noinclude', '/noinclude', 'onlyinclude', '/onlyinclude' );
-			$ignoredElements = array( 'includeonly' );
-			$xmlishElements[] = 'includeonly';
-		}
-		$xmlishRegex = implode( '|', array_merge( $xmlishElements, $ignoredTags ) );
-
-		// Use "A" modifier (anchored) instead of "^", because ^ doesn't work with an offset
-		$elementsRegex = "~($xmlishRegex)(?:\s|\/>|>)|(!--)~iA";
-
-		$stack = new PPDStack_Hash;
-
-		$searchBase = "[{<\n";
-		$revText = strrev( $text ); // For fast reverse searches
-
-		$i = 0;                     # Input pointer, starts out pointing to a pseudo-newline before the start
-		$accum =& $stack->getAccum();   # Current accumulator
-		$findEquals = false;            # True to find equals signs in arguments
-		$findPipe = false;              # True to take notice of pipe characters
-		$headingIndex = 1;
-		$inHeading = false;        # True if $i is inside a possible heading
-		$noMoreGT = false;         # True if there are no more greater-than (>) signs right of $i
-		$findOnlyinclude = $enableOnlyinclude; # True to ignore all input up to the next 
-		$fakeLineStart = true;     # Do a line-start run without outputting an LF character
-
-		while ( true ) {
-			//$this->memCheck();
-
-			if ( $findOnlyinclude ) {
-				// Ignore all input up to the next 
-				$startPos = strpos( $text, '', $i );
-				if ( $startPos === false ) {
-					// Ignored section runs to the end
-					$accum->addNodeWithText( 'ignore', substr( $text, $i ) );
-					break;
-				}
-				$tagEndPos = $startPos + strlen( '' ); // past-the-end
-				$accum->addNodeWithText( 'ignore', substr( $text, $i, $tagEndPos - $i ) );
-				$i = $tagEndPos;
-				$findOnlyinclude = false;
-			}
-
-			if ( $fakeLineStart ) {
-				$found = 'line-start';
-				$curChar = '';
-			} else {
-				# Find next opening brace, closing brace or pipe
-				$search = $searchBase;
-				if ( $stack->top === false ) {
-					$currentClosing = '';
-				} else {
-					$currentClosing = $stack->top->close;
-					$search .= $currentClosing;
-				}
-				if ( $findPipe ) {
-					$search .= '|';
-				}
-				if ( $findEquals ) {
-					// First equals will be for the template
-					$search .= '=';
-				}
-				$rule = null;
-				# Output literal section, advance input counter
-				$literalLength = strcspn( $text, $search, $i );
-				if ( $literalLength > 0 ) {
-					$accum->addLiteral( substr( $text, $i, $literalLength ) );
-					$i += $literalLength;
-				}
-				if ( $i >= strlen( $text ) ) {
-					if ( $currentClosing == "\n" ) {
-						// Do a past-the-end run to finish off the heading
-						$curChar = '';
-						$found = 'line-end';
-					} else {
-						# All done
-						break;
-					}
-				} else {
-					$curChar = $text[$i];
-					if ( $curChar == '|' ) {
-						$found = 'pipe';
-					} elseif ( $curChar == '=' ) {
-						$found = 'equals';
-					} elseif ( $curChar == '<' ) {
-						$found = 'angle';
-					} elseif ( $curChar == "\n" ) {
-						if ( $inHeading ) {
-							$found = 'line-end';
-						} else {
-							$found = 'line-start';
-						}
-					} elseif ( $curChar == $currentClosing ) {
-						$found = 'close';
-					} elseif ( isset( $rules[$curChar] ) ) {
-						$found = 'open';
-						$rule = $rules[$curChar];
-					} else {
-						# Some versions of PHP have a strcspn which stops on null characters
-						# Ignore and continue
-						++$i;
-						continue;
-					}
-				}
-			}
-
-			if ( $found == 'angle' ) {
-				$matches = false;
-				// Handle 
-				if ( $enableOnlyinclude && substr( $text, $i, strlen( '' ) ) == '' ) {
-					$findOnlyinclude = true;
-					continue;
-				}
-
-				// Determine element name
-				if ( !preg_match( $elementsRegex, $text, $matches, 0, $i + 1 ) ) {
-					// Element name missing or not listed
-					$accum->addLiteral( '<' );
-					++$i;
-					continue;
-				}
-				// Handle comments
-				if ( isset( $matches[2] ) && $matches[2] == '!--' ) {
-					// To avoid leaving blank lines, when a comment is both preceded
-					// and followed by a newline (ignoring spaces), trim leading and
-					// trailing spaces and one of the newlines.
-
-					// Find the end
-					$endPos = strpos( $text, '-->', $i + 4 );
-					if ( $endPos === false ) {
-						// Unclosed comment in input, runs to end
-						$inner = substr( $text, $i );
-						$accum->addNodeWithText( 'comment', $inner );
-						$i = strlen( $text );
-					} else {
-						// Search backwards for leading whitespace
-						$wsStart = $i ? ( $i - strspn( $revText, ' ', strlen( $text ) - $i ) ) : 0;
-						// Search forwards for trailing whitespace
-						// $wsEnd will be the position of the last space
-						$wsEnd = $endPos + 2 + strspn( $text, ' ', $endPos + 3 );
-						// Eat the line if possible
-						// TODO: This could theoretically be done if $wsStart == 0, i.e. for comments at
-						// the overall start. That's not how Sanitizer::removeHTMLcomments() did it, but
-						// it's a possible beneficial b/c break.
-						if ( $wsStart > 0 && substr( $text, $wsStart - 1, 1 ) == "\n"
-							&& substr( $text, $wsEnd + 1, 1 ) == "\n" )
-						{
-							$startPos = $wsStart;
-							$endPos = $wsEnd + 1;
-							// Remove leading whitespace from the end of the accumulator
-							// Sanity check first though
-							$wsLength = $i - $wsStart;
-							if ( $wsLength > 0
-								&& $accum->lastNode instanceof PPNode_Hash_Text
-								&& substr( $accum->lastNode->value, -$wsLength ) === str_repeat( ' ', $wsLength ) )
-							{
-								$accum->lastNode->value = substr( $accum->lastNode->value, 0, -$wsLength );
-							}
-							// Do a line-start run next time to look for headings after the comment
-							$fakeLineStart = true;
-						} else {
-							// No line to eat, just take the comment itself
-							$startPos = $i;
-							$endPos += 2;
-						}
-
-						if ( $stack->top ) {
-							$part = $stack->top->getCurrentPart();
-							if ( isset( $part->commentEnd ) && $part->commentEnd == $wsStart - 1 ) {
-								// Comments abutting, no change in visual end
-								$part->commentEnd = $wsEnd;
-							} else {
-								$part->visualEnd = $wsStart;
-								$part->commentEnd = $endPos;
-							}
-						}
-						$i = $endPos + 1;
-						$inner = substr( $text, $startPos, $endPos - $startPos + 1 );
-						$accum->addNodeWithText( 'comment', $inner );
-					}
-					continue;
-				}
-				$name = $matches[1];
-				$lowerName = strtolower( $name );
-				$attrStart = $i + strlen( $name ) + 1;
-
-				// Find end of tag
-				$tagEndPos = $noMoreGT ? false : strpos( $text, '>', $attrStart );
-				if ( $tagEndPos === false ) {
-					// Infinite backtrack
-					// Disable tag search to prevent worst-case O(N^2) performance
-					$noMoreGT = true;
-					$accum->addLiteral( '<' );
-					++$i;
-					continue;
-				}
-
-				// Handle ignored tags
-				if ( in_array( $lowerName, $ignoredTags ) ) {
-					$accum->addNodeWithText( 'ignore', substr( $text, $i, $tagEndPos - $i + 1 ) );
-					$i = $tagEndPos + 1;
-					continue;
-				}
-
-				$tagStartPos = $i;
-				if ( $text[$tagEndPos-1] == '/' ) {
-					// Short end tag
-					$attrEnd = $tagEndPos - 1;
-					$inner = null;
-					$i = $tagEndPos + 1;
-					$close = null;
-				} else {
-					$attrEnd = $tagEndPos;
-					// Find closing tag
-					if ( preg_match( "/<\/$name\s*>/i", $text, $matches, PREG_OFFSET_CAPTURE, $tagEndPos + 1 ) ) {
-						$inner = substr( $text, $tagEndPos + 1, $matches[0][1] - $tagEndPos - 1 );
-						$i = $matches[0][1] + strlen( $matches[0][0] );
-						$close = $matches[0][0];
-					} else {
-						// No end tag -- let it run out to the end of the text.
-						$inner = substr( $text, $tagEndPos + 1 );
-						$i = strlen( $text );
-						$close = null;
-					}
-				}
-				//  and  just become  tags
-				if ( in_array( $lowerName, $ignoredElements ) ) {
-					$accum->addNodeWithText(  'ignore', substr( $text, $tagStartPos, $i - $tagStartPos ) );
-					continue;
-				}
-
-				if ( $attrEnd <= $attrStart ) {
-					$attr = '';
-				} else {
-					// Note that the attr element contains the whitespace between name and attribute,
-					// this is necessary for precise reconstruction during pre-save transform.
-					$attr = substr( $text, $attrStart, $attrEnd - $attrStart );
-				}
-
-				$extNode = new PPNode_Hash_Tree( 'ext' );
-				$extNode->addChild( PPNode_Hash_Tree::newWithText( 'name', $name ) );
-				$extNode->addChild( PPNode_Hash_Tree::newWithText( 'attr', $attr ) );
-				if ( $inner !== null ) {
-					$extNode->addChild( PPNode_Hash_Tree::newWithText( 'inner', $inner ) );
-				}
-				if ( $close !== null ) {
-					$extNode->addChild( PPNode_Hash_Tree::newWithText( 'close', $close ) );
-				}
-				$accum->addNode( $extNode );
-			}
-
-			elseif ( $found == 'line-start' ) {
-				// Is this the start of a heading?
-				// Line break belongs before the heading element in any case
-				if ( $fakeLineStart ) {
-					$fakeLineStart = false;
-				} else {
-					$accum->addLiteral( $curChar );
-					$i++;
-				}
-
-				$count = strspn( $text, '=', $i, 6 );
-				if ( $count == 1 && $findEquals ) {
-					// DWIM: This looks kind of like a name/value separator
-					// Let's let the equals handler have it and break the potential heading
-					// This is heuristic, but AFAICT the methods for completely correct disambiguation are very complex.
-				} elseif ( $count > 0 ) {
-					$piece = array(
-						'open' => "\n",
-						'close' => "\n",
-						'parts' => array( new PPDPart_Hash( str_repeat( '=', $count ) ) ),
-						'startPos' => $i,
-						'count' => $count );
-					$stack->push( $piece );
-					$accum =& $stack->getAccum();
-					extract( $stack->getFlags() );
-					$i += $count;
-				}
-			}
-
-			elseif ( $found == 'line-end' ) {
-				$piece = $stack->top;
-				// A heading must be open, otherwise \n wouldn't have been in the search list
-				assert( $piece->open == "\n" );
-				$part = $piece->getCurrentPart();
-				// Search back through the input to see if it has a proper close
-				// Do this using the reversed string since the other solutions (end anchor, etc.) are inefficient
-				$wsLength = strspn( $revText, " \t", strlen( $text ) - $i );
-				$searchStart = $i - $wsLength;
-				if ( isset( $part->commentEnd ) && $searchStart - 1 == $part->commentEnd ) {
-					// Comment found at line end
-					// Search for equals signs before the comment
-					$searchStart = $part->visualEnd;
-					$searchStart -= strspn( $revText, " \t", strlen( $text ) - $searchStart );
-				}
-				$count = $piece->count;
-				$equalsLength = strspn( $revText, '=', strlen( $text ) - $searchStart );
-				if ( $equalsLength > 0 ) {
-					if ( $i - $equalsLength == $piece->startPos ) {
-						// This is just a single string of equals signs on its own line
-						// Replicate the doHeadings behaviour /={count}(.+)={count}/
-						// First find out how many equals signs there really are (don't stop at 6)
-						$count = $equalsLength;
-						if ( $count < 3 ) {
-							$count = 0;
-						} else {
-							$count = min( 6, intval( ( $count - 1 ) / 2 ) );
-						}
-					} else {
-						$count = min( $equalsLength, $count );
-					}
-					if ( $count > 0 ) {
-						// Normal match, output 
-						$element = new PPNode_Hash_Tree( 'possible-h' );
-						$element->addChild( new PPNode_Hash_Attr( 'level', $count ) );
-						$element->addChild( new PPNode_Hash_Attr( 'i', $headingIndex++ ) );
-						$element->lastChild->nextSibling = $accum->firstNode;
-						$element->lastChild = $accum->lastNode;
-					} else {
-						// Single equals sign on its own line, count=0
-						$element = $accum;
-					}
-				} else {
-					// No match, no , just pass down the inner text
-					$element = $accum;
-				}
-				// Unwind the stack
-				$stack->pop();
-				$accum =& $stack->getAccum();
-				extract( $stack->getFlags() );
-
-				// Append the result to the enclosing accumulator
-				if ( $element instanceof PPNode ) {
-					$accum->addNode( $element );
-				} else {
-					$accum->addAccum( $element );
-				}
-				// Note that we do NOT increment the input pointer.
-				// This is because the closing linebreak could be the opening linebreak of
-				// another heading. Infinite loops are avoided because the next iteration MUST
-				// hit the heading open case above, which unconditionally increments the
-				// input pointer.
-			}
-
-			elseif ( $found == 'open' ) {
-				# count opening brace characters
-				$count = strspn( $text, $curChar, $i );
-
-				# we need to add to stack only if opening brace count is enough for one of the rules
-				if ( $count >= $rule['min'] ) {
-					# Add it to the stack
-					$piece = array(
-						'open' => $curChar,
-						'close' => $rule['end'],
-						'count' => $count,
-						'lineStart' => ($i > 0 && $text[$i-1] == "\n"),
-					);
-
-					$stack->push( $piece );
-					$accum =& $stack->getAccum();
-					extract( $stack->getFlags() );
-				} else {
-					# Add literal brace(s)
-					$accum->addLiteral( str_repeat( $curChar, $count ) );
-				}
-				$i += $count;
-			}
-
-			elseif ( $found == 'close' ) {
-				$piece = $stack->top;
-				# lets check if there are enough characters for closing brace
-				$maxCount = $piece->count;
-				$count = strspn( $text, $curChar, $i, $maxCount );
-
-				# check for maximum matching characters (if there are 5 closing
-				# characters, we will probably need only 3 - depending on the rules)
-				$matchingCount = 0;
-				$rule = $rules[$piece->open];
-				if ( $count > $rule['max'] ) {
-					# The specified maximum exists in the callback array, unless the caller
-					# has made an error
-					$matchingCount = $rule['max'];
-				} else {
-					# Count is less than the maximum
-					# Skip any gaps in the callback array to find the true largest match
-					# Need to use array_key_exists not isset because the callback can be null
-					$matchingCount = $count;
-					while ( $matchingCount > 0 && !array_key_exists( $matchingCount, $rule['names'] ) ) {
-						--$matchingCount;
-					}
-				}
-
-				if ($matchingCount <= 0) {
-					# No matching element found in callback array
-					# Output a literal closing brace and continue
-					$accum->addLiteral( str_repeat( $curChar, $count ) );
-					$i += $count;
-					continue;
-				}
-				$name = $rule['names'][$matchingCount];
-				if ( $name === null ) {
-					// No element, just literal text
-					$element = $piece->breakSyntax( $matchingCount );
-					$element->addLiteral( str_repeat( $rule['end'], $matchingCount ) );
-				} else {
-					# Create XML element
-					# Note: $parts is already XML, does not need to be encoded further
-					$parts = $piece->parts;
-					$titleAccum = $parts[0]->out;
-					unset( $parts[0] );
-
-					$element = new PPNode_Hash_Tree( $name );
-
-					# The invocation is at the start of the line if lineStart is set in
-					# the stack, and all opening brackets are used up.
-					if ( $maxCount == $matchingCount && !empty( $piece->lineStart ) ) {
-						$element->addChild( new PPNode_Hash_Attr( 'lineStart', 1 ) );
-					}
-					$titleNode = new PPNode_Hash_Tree( 'title' );
-					$titleNode->firstChild = $titleAccum->firstNode;
-					$titleNode->lastChild = $titleAccum->lastNode;
-					$element->addChild( $titleNode );
-					$argIndex = 1;
-					foreach ( $parts as $partIndex => $part ) {
-						if ( isset( $part->eqpos ) ) {
-							// Find equals
-							$lastNode = false;
-							for ( $node = $part->out->firstNode; $node; $node = $node->nextSibling ) {
-								if ( $node === $part->eqpos ) {
-									break;
-								}
-								$lastNode = $node;
-							}
-							if ( !$node ) {
-								throw new MWException( __METHOD__. ': eqpos not found' );
-							}
-							if ( $node->name !== 'equals' ) {
-								throw new MWException( __METHOD__ .': eqpos is not equals' );
-							}
-							$equalsNode = $node;
-
-							// Construct name node
-							$nameNode = new PPNode_Hash_Tree( 'name' );
-							if ( $lastNode !== false ) {
-								$lastNode->nextSibling = false;
-								$nameNode->firstChild = $part->out->firstNode;
-								$nameNode->lastChild = $lastNode;
-							}
-
-							// Construct value node
-							$valueNode = new PPNode_Hash_Tree( 'value' );
-							if ( $equalsNode->nextSibling !== false ) {
-								$valueNode->firstChild = $equalsNode->nextSibling;
-								$valueNode->lastChild = $part->out->lastNode;
-							}
-							$partNode = new PPNode_Hash_Tree( 'part' );
-							$partNode->addChild( $nameNode );
-							$partNode->addChild( $equalsNode->firstChild );
-							$partNode->addChild( $valueNode );
-							$element->addChild( $partNode );
-						} else {
-							$partNode = new PPNode_Hash_Tree( 'part' );
-							$nameNode = new PPNode_Hash_Tree( 'name' );
-							$nameNode->addChild( new PPNode_Hash_Attr( 'index', $argIndex++ ) );
-							$valueNode = new PPNode_Hash_Tree( 'value' );
-							$valueNode->firstChild = $part->out->firstNode;
-							$valueNode->lastChild = $part->out->lastNode;
-							$partNode->addChild( $nameNode );
-							$partNode->addChild( $valueNode );
-							$element->addChild( $partNode );
-						}
-					}
-				}
-
-				# Advance input pointer
-				$i += $matchingCount;
-
-				# Unwind the stack
-				$stack->pop();
-				$accum =& $stack->getAccum();
-
-				# Re-add the old stack element if it still has unmatched opening characters remaining
-				if ($matchingCount < $piece->count) {
-					$piece->parts = array( new PPDPart_Hash );
-					$piece->count -= $matchingCount;
-					# do we still qualify for any callback with remaining count?
-					$names = $rules[$piece->open]['names'];
-					$skippedBraces = 0;
-					$enclosingAccum =& $accum;
-					while ( $piece->count ) {
-						if ( array_key_exists( $piece->count, $names ) ) {
-							$stack->push( $piece );
-							$accum =& $stack->getAccum();
-							break;
-						}
-						--$piece->count;
-						$skippedBraces ++;
-					}
-					$enclosingAccum->addLiteral( str_repeat( $piece->open, $skippedBraces ) );
-				}
-
-				extract( $stack->getFlags() );
-
-				# Add XML element to the enclosing accumulator
-				if ( $element instanceof PPNode ) {
-					$accum->addNode( $element );
-				} else {
-					$accum->addAccum( $element );
-				}
-			}
-
-			elseif ( $found == 'pipe' ) {
-				$findEquals = true; // shortcut for getFlags()
-				$stack->addPart();
-				$accum =& $stack->getAccum();
-				++$i;
-			}
-
-			elseif ( $found == 'equals' ) {
-				$findEquals = false; // shortcut for getFlags()
-				$accum->addNodeWithText( 'equals', '=' );
-				$stack->getCurrentPart()->eqpos = $accum->lastNode;
-				++$i;
-			}
-		}
-
-		# Output any remaining unclosed brackets
-		foreach ( $stack->stack as $piece ) {
-			$stack->rootAccum->addAccum( $piece->breakSyntax() );
-		}
-
-		# Enable top-level headings
-		for ( $node = $stack->rootAccum->firstNode; $node; $node = $node->nextSibling ) {
-			if ( isset( $node->name ) && $node->name === 'possible-h' ) {
-				$node->name = 'h';
-			}
-		}
-
-		$rootNode = new PPNode_Hash_Tree( 'root' );
-		$rootNode->firstChild = $stack->rootAccum->firstNode;
-		$rootNode->lastChild = $stack->rootAccum->lastNode;
-		wfProfileOut( __METHOD__ );
-		return $rootNode;
-	}
-}
-
-/**
- * Stack class to help Preprocessor::preprocessToObj()
- * @ingroup Parser
- */
-class PPDStack_Hash extends PPDStack {
-	function __construct() {
-		$this->elementClass = 'PPDStackElement_Hash';
-		parent::__construct();
-		$this->rootAccum = new PPDAccum_Hash;
-	}
-}
-
-/**
- * @ingroup Parser
- */
-class PPDStackElement_Hash extends PPDStackElement {
-	function __construct( $data = array() ) {
-		$this->partClass = 'PPDPart_Hash';
-		parent::__construct( $data );
-	}
-
-	/**
-	 * Get the accumulator that would result if the close is not found.
-	 */
-	function breakSyntax( $openingCount = false ) {
-		if ( $this->open == "\n" ) {
-			$accum = $this->parts[0]->out;
-		} else {
-			if ( $openingCount === false ) {
-				$openingCount = $this->count;
-			}
-			$accum = new PPDAccum_Hash;
-			$accum->addLiteral( str_repeat( $this->open, $openingCount ) );
-			$first = true;
-			foreach ( $this->parts as $part ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$accum->addLiteral( '|' );
-				}
-				$accum->addAccum( $part->out );
-			}
-		}
-		return $accum;
-	}
-}
-
-/**
- * @ingroup Parser
- */
-class PPDPart_Hash extends PPDPart {
-	function __construct( $out = '' ) {
-		$accum = new PPDAccum_Hash;
-		if ( $out !== '' ) {
-			$accum->addLiteral( $out );
-		}
-		parent::__construct( $accum );
-	}
-}
-
-/**
- * @ingroup Parser
- */
-class PPDAccum_Hash {
-	var $firstNode, $lastNode;
-
-	function __construct() {
-		$this->firstNode = $this->lastNode = false;
-	}
-
-	/**
-	 * Append a string literal
-	 */
-	function addLiteral( $s ) {
-		if ( $this->lastNode === false ) {
-			$this->firstNode = $this->lastNode = new PPNode_Hash_Text( $s );
-		} elseif ( $this->lastNode instanceof PPNode_Hash_Text ) {
-			$this->lastNode->value .= $s;
-		} else {
-			$this->lastNode->nextSibling = new PPNode_Hash_Text( $s );
-			$this->lastNode = $this->lastNode->nextSibling;
-		}
-	}
-
-	/**
-	 * Append a PPNode
-	 */
-	function addNode( PPNode $node ) {
-		if ( $this->lastNode === false ) {
-			$this->firstNode = $this->lastNode = $node;
-		} else {
-			$this->lastNode->nextSibling = $node;
-			$this->lastNode = $node;
-		}
-	}
-
-	/**
-	 * Append a tree node with text contents
-	 */
-	function addNodeWithText( $name, $value ) {
-		$node = PPNode_Hash_Tree::newWithText( $name, $value );
-		$this->addNode( $node );
-	}
-
-	/**
-	 * Append a PPAccum_Hash
-	 * Takes over ownership of the nodes in the source argument. These nodes may
-	 * subsequently be modified, especially nextSibling.
-	 */
-	function addAccum( $accum ) {
-		if ( $accum->lastNode === false ) {
-			// nothing to add
-		} elseif ( $this->lastNode === false ) {
-			$this->firstNode = $accum->firstNode;
-			$this->lastNode = $accum->lastNode;
-		} else {
-			$this->lastNode->nextSibling = $accum->firstNode;
-			$this->lastNode = $accum->lastNode;
-		}
-	}
-}
-
-/**
- * An expansion frame, used as a context to expand the result of preprocessToObj()
- * @ingroup Parser
- */
-class PPFrame_Hash implements PPFrame {
-	var $preprocessor, $parser, $title;
-	var $titleCache;
-
-	/**
-	 * Hashtable listing templates which are disallowed for expansion in this frame,
-	 * having been encountered previously in parent frames.
-	 */
-	var $loopCheckHash;
-
-	/**
-	 * Recursion depth of this frame, top = 0
-	 */
-	var $depth;
-
-
-	/**
-	 * Construct a new preprocessor frame.
-	 * @param Preprocessor $preprocessor The parent preprocessor
-	 */
-	function __construct( $preprocessor ) {
-		$this->preprocessor = $preprocessor;
-		$this->parser = $preprocessor->parser;
-		$this->title = $this->parser->mTitle;
-		$this->titleCache = array( $this->title ? $this->title->getPrefixedDBkey() : false );
-		$this->loopCheckHash = array();
-		$this->depth = 0;
-	}
-
-	/**
-	 * Create a new child frame
-	 * $args is optionally a multi-root PPNode or array containing the template arguments
-	 */
-	function newChild( $args = false, $title = false ) {
-		$namedArgs = array();
-		$numberedArgs = array();
-		if ( $title === false ) {
-			$title = $this->title;
-		}
-		if ( $args !== false ) {
-			$xpath = false;
-			if ( $args instanceof PPNode_Hash_Array ) {
-				$args = $args->value;
-			} elseif ( !is_array( $args ) ) {
-				throw new MWException( __METHOD__ . ': $args must be array or PPNode_Hash_Array' );
-			}
-			foreach ( $args as $arg ) {
-				$bits = $arg->splitArg();
-				if ( $bits['index'] !== '' ) {
-					// Numbered parameter
-					$numberedArgs[$bits['index']] = $bits['value'];
-					unset( $namedArgs[$bits['index']] );
-				} else {
-					// Named parameter
-					$name = trim( $this->expand( $bits['name'], PPFrame::STRIP_COMMENTS ) );
-					$namedArgs[$name] = $bits['value'];
-					unset( $numberedArgs[$name] );
-				}
-			}
-		}
-		return new PPTemplateFrame_Hash( $this->preprocessor, $this, $numberedArgs, $namedArgs, $title );
-	}
-
-	function expand( $root, $flags = 0 ) {
-		if ( is_string( $root ) ) {
-			return $root;
-		}
-
-		if ( ++$this->parser->mPPNodeCount > $this->parser->mOptions->mMaxPPNodeCount )
-		{
-			return 'Node-count limit exceeded';
-		}
-		if ( $this->depth > $this->parser->mOptions->mMaxPPExpandDepth ) {
-			return 'Expansion depth limit exceeded';
-		}
-		++$this->depth;
-
-		$outStack = array( '', '' );
-		$iteratorStack = array( false, $root );
-		$indexStack = array( 0, 0 );
-
-		while ( count( $iteratorStack ) > 1 ) {
-			$level = count( $outStack ) - 1;
-			$iteratorNode =& $iteratorStack[ $level ];
-			$out =& $outStack[$level];
-			$index =& $indexStack[$level];
-
-			if ( is_array( $iteratorNode ) ) {
-				if ( $index >= count( $iteratorNode ) ) {
-					// All done with this iterator
-					$iteratorStack[$level] = false;
-					$contextNode = false;
-				} else {
-					$contextNode = $iteratorNode[$index];
-					$index++;
-				}
-			} elseif ( $iteratorNode instanceof PPNode_Hash_Array ) {
-				if ( $index >= $iteratorNode->getLength() ) {
-					// All done with this iterator
-					$iteratorStack[$level] = false;
-					$contextNode = false;
-				} else {
-					$contextNode = $iteratorNode->item( $index );
-					$index++;
-				}
-			} else {
-				// Copy to $contextNode and then delete from iterator stack,
-				// because this is not an iterator but we do have to execute it once
-				$contextNode = $iteratorStack[$level];
-				$iteratorStack[$level] = false;
-			}
-
-			$newIterator = false;
-
-			if ( $contextNode === false ) {
-				// nothing to do
-			} elseif ( is_string( $contextNode ) ) {
-				$out .= $contextNode;
-			} elseif ( is_array( $contextNode ) || $contextNode instanceof PPNode_Hash_Array ) {
-				$newIterator = $contextNode;
-			} elseif ( $contextNode instanceof PPNode_Hash_Attr ) {
-				// No output
-			} elseif ( $contextNode instanceof PPNode_Hash_Text ) {
-				$out .= $contextNode->value;
-			} elseif ( $contextNode instanceof PPNode_Hash_Tree ) {
-				if ( $contextNode->name == 'template' ) {
-					# Double-brace expansion
-					$bits = $contextNode->splitTemplate();
-					if ( $flags & self::NO_TEMPLATES ) {
-						$newIterator = $this->virtualBracketedImplode( '{{', '|', '}}', $bits['title'], $bits['parts'] );
-					} else {
-						$ret = $this->parser->braceSubstitution( $bits, $this );
-						if ( isset( $ret['object'] ) ) {
-							$newIterator = $ret['object'];
-						} else {
-							$out .= $ret['text'];
-						}
-					}
-				} elseif ( $contextNode->name == 'tplarg' ) {
-					# Triple-brace expansion
-					$bits = $contextNode->splitTemplate();
-					if ( $flags & self::NO_ARGS ) {
-						$newIterator = $this->virtualBracketedImplode( '{{{', '|', '}}}', $bits['title'], $bits['parts'] );
-					} else {
-						$ret = $this->parser->argSubstitution( $bits, $this );
-						if ( isset( $ret['object'] ) ) {
-							$newIterator = $ret['object'];
-						} else {
-							$out .= $ret['text'];
-						}
-					}
-				} elseif ( $contextNode->name == 'comment' ) {
-					# HTML-style comment
-					# Remove it in HTML, pre+remove and STRIP_COMMENTS modes
-					if ( $this->parser->ot['html']
-						|| ( $this->parser->ot['pre'] && $this->parser->mOptions->getRemoveComments() )
-						|| ( $flags & self::STRIP_COMMENTS ) )
-					{
-						$out .= '';
-					}
-					# Add a strip marker in PST mode so that pstPass2() can run some old-fashioned regexes on the result
-					# Not in RECOVER_COMMENTS mode (extractSections) though
-					elseif ( $this->parser->ot['wiki'] && ! ( $flags & self::RECOVER_COMMENTS ) ) {
-						$out .= $this->parser->insertStripItem( $contextNode->firstChild->value );
-					}
-					# Recover the literal comment in RECOVER_COMMENTS and pre+no-remove
-					else {
-						$out .= $contextNode->firstChild->value;
-					}
-				} elseif ( $contextNode->name == 'ignore' ) {
-					# Output suppression used by  etc.
-					# OT_WIKI will only respect  in substed templates.
-					# The other output types respect it unless NO_IGNORE is set.
-					# extractSections() sets NO_IGNORE and so never respects it.
-					if ( ( !isset( $this->parent ) && $this->parser->ot['wiki'] ) || ( $flags & self::NO_IGNORE ) ) {
-						$out .= $contextNode->firstChild->value;
-					} else {
-						//$out .= '';
-					}
-				} elseif ( $contextNode->name == 'ext' ) {
-					# Extension tag
-					$bits = $contextNode->splitExt() + array( 'attr' => null, 'inner' => null, 'close' => null );
-					$out .= $this->parser->extensionSubstitution( $bits, $this );
-				} elseif ( $contextNode->name == 'h' ) {
-					# Heading
-					if ( $this->parser->ot['html'] ) {
-						# Expand immediately and insert heading index marker
-						$s = '';
-						for ( $node = $contextNode->firstChild; $node; $node = $node->nextSibling ) {
-							$s .= $this->expand( $node, $flags );
-						}
-
-						$bits = $contextNode->splitHeading();
-						$titleText = $this->title->getPrefixedDBkey();
-						$this->parser->mHeadings[] = array( $titleText, $bits['i'] );
-						$serial = count( $this->parser->mHeadings ) - 1;
-						$marker = "{$this->parser->mUniqPrefix}-h-$serial-" . Parser::MARKER_SUFFIX;
-						$s = substr( $s, 0, $bits['level'] ) . $marker . substr( $s, $bits['level'] );
-						$this->parser->mStripState->general->setPair( $marker, '' );
-						$out .= $s;
-					} else {
-						# Expand in virtual stack
-						$newIterator = $contextNode->getChildren();
-					}
-				} else {
-					# Generic recursive expansion
-					$newIterator = $contextNode->getChildren();
-				}
-			} else {
-				throw new MWException( __METHOD__.': Invalid parameter type' );
-			}
-
-			if ( $newIterator !== false ) {
-				$outStack[] = '';
-				$iteratorStack[] = $newIterator;
-				$indexStack[] = 0;
-			} elseif ( $iteratorStack[$level] === false ) {
-				// Return accumulated value to parent
-				// With tail recursion
-				while ( $iteratorStack[$level] === false && $level > 0 ) {
-					$outStack[$level - 1] .= $out;
-					array_pop( $outStack );
-					array_pop( $iteratorStack );
-					array_pop( $indexStack );
-					$level--;
-				}
-			}
-		}
-		--$this->depth;
-		return $outStack[0];
-	}
-
-	function implodeWithFlags( $sep, $flags /*, ... */ ) {
-		$args = array_slice( func_get_args(), 2 );
-
-		$first = true;
-		$s = '';
-		foreach ( $args as $root ) {
-			if ( $root instanceof PPNode_Hash_Array ) {
-				$root = $root->value;
-			}
-			if ( !is_array( $root ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$s .= $sep;
-				}
-				$s .= $this->expand( $node, $flags );
-			}
-		}
-		return $s;
-	}
-
-	/**
-	 * Implode with no flags specified
-	 * This previously called implodeWithFlags but has now been inlined to reduce stack depth
-	 */
-	function implode( $sep /*, ... */ ) {
-		$args = array_slice( func_get_args(), 1 );
-
-		$first = true;
-		$s = '';
-		foreach ( $args as $root ) {
-			if ( $root instanceof PPNode_Hash_Array ) {
-				$root = $root->value;
-			}
-			if ( !is_array( $root ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$s .= $sep;
-				}
-				$s .= $this->expand( $node );
-			}
-		}
-		return $s;
-	}
-
-	/**
-	 * Makes an object that, when expand()ed, will be the same as one obtained
-	 * with implode()
-	 */
-	function virtualImplode( $sep /*, ... */ ) {
-		$args = array_slice( func_get_args(), 1 );
-		$out = array();
-		$first = true;
-
-		foreach ( $args as $root ) {
-			if ( $root instanceof PPNode_Hash_Array ) {
-				$root = $root->value;
-			}
-			if ( !is_array( $root ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$out[] = $sep;
-				}
-				$out[] = $node;
-			}
-		}
-		return new PPNode_Hash_Array( $out );
-	}
-
-	/**
-	 * Virtual implode with brackets
-	 */
-	function virtualBracketedImplode( $start, $sep, $end /*, ... */ ) {
-		$args = array_slice( func_get_args(), 3 );
-		$out = array( $start );
-		$first = true;
-
-		foreach ( $args as $root ) {
-			if ( $root instanceof PPNode_Hash_Array ) {
-				$root = $root->value;
-			}
-			if ( !is_array( $root ) ) {
-				$root = array( $root );
-			}
-			foreach ( $root as $node ) {
-				if ( $first ) {
-					$first = false;
-				} else {
-					$out[] = $sep;
-				}
-				$out[] = $node;
-			}
-		}
-		$out[] = $end;
-		return new PPNode_Hash_Array( $out );
-	}
-
-	function __toString() {
-		return 'frame{}';
-	}
-
-	function getPDBK( $level = false ) {
-		if ( $level === false ) {
-			return $this->title->getPrefixedDBkey();
-		} else {
-			return isset( $this->titleCache[$level] ) ? $this->titleCache[$level] : false;
-		}
-	}
-
-	/**
-	 * Returns true if there are no arguments in this frame
-	 */
-	function isEmpty() {
-		return true;
-	}
-
-	function getArgument( $name ) {
-		return false;
-	}
-
-	/**
-	 * Returns true if the infinite loop check is OK, false if a loop is detected
-	 */
-	function loopCheck( $title ) {
-		return !isset( $this->loopCheckHash[$title->getPrefixedDBkey()] );
-	}
-
-	/**
-	 * Return true if the frame is a template frame
-	 */
-	function isTemplate() {
-		return false;
-	}
-}
-
-/**
- * Expansion frame with template arguments
- * @ingroup Parser
- */
-class PPTemplateFrame_Hash extends PPFrame_Hash {
-	var $numberedArgs, $namedArgs, $parent;
-	var $numberedExpansionCache, $namedExpansionCache;
-
-	function __construct( $preprocessor, $parent = false, $numberedArgs = array(), $namedArgs = array(), $title = false ) {
-		$this->preprocessor = $preprocessor;
-		$this->parser = $preprocessor->parser;
-		$this->parent = $parent;
-		$this->numberedArgs = $numberedArgs;
-		$this->namedArgs = $namedArgs;
-		$this->title = $title;
-		$pdbk = $title ? $title->getPrefixedDBkey() : false;
-		$this->titleCache = $parent->titleCache;
-		$this->titleCache[] = $pdbk;
-		$this->loopCheckHash = /*clone*/ $parent->loopCheckHash;
-		if ( $pdbk !== false ) {
-			$this->loopCheckHash[$pdbk] = true;
-		}
-		$this->depth = $parent->depth + 1;
-		$this->numberedExpansionCache = $this->namedExpansionCache = array();
-	}
-
-	function __toString() {
-		$s = 'tplframe{';
-		$first = true;
-		$args = $this->numberedArgs + $this->namedArgs;
-		foreach ( $args as $name => $value ) {
-			if ( $first ) {
-				$first = false;
-			} else {
-				$s .= ', ';
-			}
-			$s .= "\"$name\":\"" .
-				str_replace( '"', '\\"', $value->__toString() ) . '"';
-		}
-		$s .= '}';
-		return $s;
-	}
-	/**
-	 * Returns true if there are no arguments in this frame
-	 */
-	function isEmpty() {
-		return !count( $this->numberedArgs ) && !count( $this->namedArgs );
-	}
-
-	function getNumberedArgument( $index ) {
-		if ( !isset( $this->numberedArgs[$index] ) ) {
-			return false;
-		}
-		if ( !isset( $this->numberedExpansionCache[$index] ) ) {
-			# No trimming for unnamed arguments
-			$this->numberedExpansionCache[$index] = $this->parent->expand( $this->numberedArgs[$index], self::STRIP_COMMENTS );
-		}
-		return $this->numberedExpansionCache[$index];
-	}
-
-	function getNamedArgument( $name ) {
-		if ( !isset( $this->namedArgs[$name] ) ) {
-			return false;
-		}
-		if ( !isset( $this->namedExpansionCache[$name] ) ) {
-			# Trim named arguments post-expand, for backwards compatibility
-			$this->namedExpansionCache[$name] = trim(
-				$this->parent->expand( $this->namedArgs[$name], self::STRIP_COMMENTS ) );
-		}
-		return $this->namedExpansionCache[$name];
-	}
-
-	function getArgument( $name ) {
-		$text = $this->getNumberedArgument( $name );
-		if ( $text === false ) {
-			$text = $this->getNamedArgument( $name );
-		}
-		return $text;
-	}
-
-	/**
-	 * Return true if the frame is a template frame
-	 */
-	function isTemplate() {
-		return true;
-	}
-}
-
-/**
- * @ingroup Parser
- */
-class PPNode_Hash_Tree implements PPNode {
-	var $name, $firstChild, $lastChild, $nextSibling;
-
-	function __construct( $name ) {
-		$this->name = $name;
-		$this->firstChild = $this->lastChild = $this->nextSibling = false;
-	}
-
-	function __toString() {
-		$inner = '';
-		$attribs = '';
-		for ( $node = $this->firstChild; $node; $node = $node->nextSibling ) {
-			if ( $node instanceof PPNode_Hash_Attr ) {
-				$attribs .= ' ' . $node->name . '="' . htmlspecialchars( $node->value ) . '"';
-			} else {
-				$inner .= $node->__toString();
-			}
-		}
-		if ( $inner === '' ) {
-			return "<{$this->name}$attribs/>";
-		} else {
-			return "<{$this->name}$attribs>$innername}>";
-		}
-	}
-
-	static function newWithText( $name, $text ) {
-		$obj = new self( $name );
-		$obj->addChild( new PPNode_Hash_Text( $text ) );
-		return $obj;
-	}
-
-	function addChild( $node ) {
-		if ( $this->lastChild === false ) {
-			$this->firstChild = $this->lastChild = $node;
-		} else {
-			$this->lastChild->nextSibling = $node;
-			$this->lastChild = $node;
-		}
-	}
-
-	function getChildren() {
-		$children = array();
-		for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
-			$children[] = $child;
-		}
-		return new PPNode_Hash_Array( $children );
-	}
-
-	function getFirstChild() {
-		return $this->firstChild;
-	}
-
-	function getNextSibling() {
-		return $this->nextSibling;
-	}
-
-	function getChildrenOfType( $name ) {
-		$children = array();
-		for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
-			if ( isset( $child->name ) && $child->name === $name ) {
-				$children[] = $name;
-			}
-		}
-		return $children;
-	}
-
-	function getLength() { return false; }
-	function item( $i ) { return false; }
-
-	function getName() {
-		return $this->name;
-	}
-
-	/**
-	 * Split a  node into an associative array containing:
-	 *    name          PPNode name
-	 *    index         String index
-	 *    value         PPNode value
-	 */
-	function splitArg() {
-		$bits = array();
-		for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
-			if ( !isset( $child->name ) ) {
-				continue;
-			}
-			if ( $child->name === 'name' ) {
-				$bits['name'] = $child;
-				if ( $child->firstChild instanceof PPNode_Hash_Attr
-					&& $child->firstChild->name === 'index' )
-				{
-					$bits['index'] = $child->firstChild->value;
-				}
-			} elseif ( $child->name === 'value' ) {
-				$bits['value'] = $child;
-			}
-		}
-
-		if ( !isset( $bits['name'] ) ) {
-			throw new MWException( 'Invalid brace node passed to ' . __METHOD__ );
-		}
-		if ( !isset( $bits['index'] ) ) {
-			$bits['index'] = '';
-		}
-		return $bits;
-	}
-
-	/**
-	 * Split an  node into an associative array containing name, attr, inner and close
-	 * All values in the resulting array are PPNodes. Inner and close are optional.
-	 */
-	function splitExt() {
-		$bits = array();
-		for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
-			if ( !isset( $child->name ) ) {
-				continue;
-			}
-			if ( $child->name == 'name' ) {
-				$bits['name'] = $child;
-			} elseif ( $child->name == 'attr' ) {
-				$bits['attr'] = $child;
-			} elseif ( $child->name == 'inner' ) {
-				$bits['inner'] = $child;
-			} elseif ( $child->name == 'close' ) {
-				$bits['close'] = $child;
-			}
-		}
-		if ( !isset( $bits['name'] ) ) {
-			throw new MWException( 'Invalid ext node passed to ' . __METHOD__ );
-		}
-		return $bits;
-	}
-
-	/**
-	 * Split an  node
-	 */
-	function splitHeading() {
-		if ( $this->name !== 'h' ) {
-			throw new MWException( 'Invalid h node passed to ' . __METHOD__ );
-		}
-		$bits = array();
-		for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
-			if ( !isset( $child->name ) ) {
-				continue;
-			}
-			if ( $child->name == 'i' ) {
-				$bits['i'] = $child->value;
-			} elseif ( $child->name == 'level' ) {
-				$bits['level'] = $child->value;
-			}
-		}
-		if ( !isset( $bits['i'] ) ) {
-			throw new MWException( 'Invalid h node passed to ' . __METHOD__ );
-		}
-		return $bits;
-	}
-
-	/**
-	 * Split a