* 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, $mUrlProtocols, $mDefaultStripList, $mVarCache, $mConf; # Cleared with clearState(): var $mOutput, $mAutonumber, $mDTopen, $mStripState; var $mIncludeCount, $mArgStack, $mLastSection, $mInPre; var $mLinkHolders, $mLinkID; var $mIncludeSizes, $mPPNodeCount, $mDefaultSort; var $mTplExpandCache; // empty-frame expansion cache var $mTplRedirCache, $mTplDomCache, $mHeadings, $mDoubleUnderscores; var $mExpensiveFunctionCount; // number of expensive parser function calls var $mFileCache; # 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->mUrlProtocols = wfUrlProtocols(); $this->mExtLinkBracketedRegex = '/\[(\b(' . wfUrlProtocols() . ')'. '[^][<>"\\x00-\\x20\\x7F]+) *([^\]\\x0a\\x0d]*?)\]/S'; $this->mVarCache = array(); if ( isset( $conf['preprocessorClass'] ) ) { $this->mPreprocessorClass = $conf['preprocessorClass']; } elseif ( extension_loaded( 'domxml' ) ) { // PECL extension that conflicts with the core DOM extension (bug 13770) wfDebug( "Warning: you have the obsolete domxml extension for PHP. Please remove it!\n" ); $this->mPreprocessorClass = 'Preprocessor_Hash'; } elseif ( extension_loaded( 'dom' ) ) { $this->mPreprocessorClass = 'Preprocessor_DOM'; } else { $this->mPreprocessorClass = 'Preprocessor_Hash'; } $this->mMarkerIndex = 0; $this->mFirstCall = true; } /** * Reduce memory usage to reduce the impact of circular references */ function __destruct() { if ( isset( $this->mLinkHolders ) ) { $this->mLinkHolders->__destruct(); } foreach ( $this as $name => $value ) { unset( $this->$name ); } } /** * 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->mLinkHolders = new LinkHolderArray( $this ); $this->mLinkID = 0; $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" . self::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; $this->mFileCache = array(); # 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 $text String: text we want to parse * @param $title A title object * @param $options ParserOptions * @param $linestart boolean * @param $clearState boolean * @param $revid Int: number to pass in {{REVISIONID}} * @return ParserOutput a ParserOutput */ public function parse( $text, Title $title, ParserOptions $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 = __METHOD__.'-' . 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 ); $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 ); } 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 getOutput() { return $this->mOutput; } function nextLinkID() { return $this->mLinkID++; } 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.''; # Tidy is known to clobber tabs; convert 'em to entities $wrappedtext = str_replace("\t", ' ', $wrappedtext); if( $wgTidyInternal ) { $correctedtext = self::internalTidy( $wrappedtext ); } else { $correctedtext = self::externalTidy( $wrappedtext ); } if( is_null( $correctedtext ) ) { wfDebug( "Tidy error detected!\n" ); return $text . "\n\n"; } # Convert the tabs back from entities $correctedtext = str_replace(' ', "\t", $correctedtext); return $correctedtext; } /** * Spawn an external HTML tidy process and get corrected markup back from it. * * @private * @static */ function externalTidy( $text ) { global $wgTidyConf, $wgTidyBin, $wgTidyOpts; wfProfileIn( __METHOD__ ); $cleansource = ''; $opts = ' -utf8'; $descriptorspec = array( 0 => array('pipe', 'r'), 1 => array('pipe', 'w'), 2 => array('file', wfGetNull(), 'a') ); $pipes = array(); if( function_exists('proc_open') ) { $process = proc_open("$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( __METHOD__ ); 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; wfProfileIn( __METHOD__ ); $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( __METHOD__ ); return $cleansource; } /** * parse the wiki syntax used to render tables * * @private */ function doTableStuff ( $text ) { wfProfileIn( __METHOD__ ); $lines = StringUtils::explode( "\n", $text ); $out = ''; $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 $outLine ) { $line = trim( $outLine ); if( $line == '' ) { // empty line, go to next line $out .= $outLine."\n"; 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' ); $outLine = 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 $out .= $outLine."\n"; 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 ); $outLine = $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}"; } $outLine = $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 ); $outLine = ''; // 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]}"; } $outLine .= $cell; array_push ( $td_history , true ); } } $out .= $outLine . "\n"; } // Closing open td, tr && table while ( count ( $td_history ) > 0 ) { if ( array_pop ( $td_history ) ) { $out .= "\n"; } if ( array_pop ( $tr_history ) ) { $out .= "\n"; } if ( !array_pop ( $has_opened_tr ) ) { $out .= "\n" ; } $out .= "\n"; } // Remove trailing line-ending (b/c) if ( substr( $out, -1 ) === "\n" ) { $out = substr( $out, 0, -1 ); } // special case: don't return empty table if( $out === "\n\n
" ) { $out = ''; } wfProfileOut( __METHOD__ ); return $out; } /** * Helper function for parse() that transforms wiki markup into * HTML. Only called for $mOutputType == self::OT_HTML. * * @private */ function internalParse( $text ) { $isMain = true; wfProfileIn( __METHOD__ ); # Hook to suspend the parser in this state if ( !wfRunHooks( 'ParserBeforeInternalParse', array( &$this, &$text, &$this->mStripState ) ) ) { wfProfileOut( __METHOD__ ); 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( __METHOD__ ); return $text; } /** * Replace special strings like "ISBN xxx" and "RFC xxx" with * magic external links. * * DML * @private */ function doMagicLinks( $text ) { wfProfileIn( __METHOD__ ); $prots = $this->mUrlProtocols; $urlChar = self::EXT_LINK_URL_CLASS; $text = preg_replace_callback( '!(?: # Start cases () | # m[1]: Skip link text (<.*?>) | # m[2]: Skip stuff inside HTML elements' . " (\\b(?:$prots)$urlChar+) | # m[3]: Free external links" . ' (?:RFC|PMID)\s+([0-9]+) | # m[4]: RFC or PMID, capture number ISBN\s+(\b # m[5]: ISBN, capture number (?: 97[89] [\ \-]? )? # optional 13-digit ISBN prefix (?: [0-9] [\ \-]? ){9} # 9 digits with opt. delimiters [0-9Xx] # check digit \b) )!x', array( &$this, 'magicLinkCallback' ), $text ); wfProfileOut( __METHOD__ ); return $text; } function magicLinkCallback( $m ) { if ( isset( $m[1] ) && strval( $m[1] ) !== '' ) { # Skip anchor return $m[0]; } elseif ( isset( $m[2] ) && strval( $m[2] ) !== '' ) { # Skip HTML element return $m[0]; } elseif ( isset( $m[3] ) && strval( $m[3] ) !== '' ) { # Free external link return $this->makeFreeExternalLink( $m[0] ); } elseif ( isset( $m[4] ) && strval( $m[4] ) !== '' ) { # RFC or PMID if ( substr( $m[0], 0, 3 ) === 'RFC' ) { $keyword = 'RFC'; $urlmsg = 'rfcurl'; $id = $m[4]; } elseif ( substr( $m[0], 0, 4 ) === 'PMID' ) { $keyword = 'PMID'; $urlmsg = 'pubmedurl'; $id = $m[4]; } else { throw new MWException( __METHOD__.': unrecognised match type "' . substr($m[0], 0, 20 ) . '"' ); } $url = wfMsg( $urlmsg, $id); $sk = $this->mOptions->getSkin(); $la = $sk->getExternalLinkAttributes( $url, $keyword.$id ); return "{$keyword} {$id}"; } elseif ( isset( $m[5] ) && strval( $m[5] ) !== '' ) { # ISBN $isbn = $m[5]; $num = strtr( $isbn, array( '-' => '', ' ' => '', 'x' => 'X', )); $titleObj = SpecialPage::getTitleFor( 'Booksources', $num ); return'ISBN $isbn"; } else { return $m[0]; } } /** * Make a free external link, given a user-supplied URL * @return HTML * @private */ function makeFreeExternalLink( $url ) { global $wgContLang; wfProfileIn( __METHOD__ ); $sk = $this->mOptions->getSkin(); $trail = ''; # 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->getExternalLinkAttribs() ); # Register it in the output object... # Replace unnecessary URL escape codes with their equivalent characters $pasteurized = self::replaceUnusualEscapes( $url ); $this->mOutput->addExternalLink( $pasteurized ); } wfProfileOut( __METHOD__ ); return $text . $trail; } /** * Parse headers and return html * * @private */ function doHeadings( $text ) { wfProfileIn( __METHOD__ ); for ( $i = 6; $i >= 1; --$i ) { $h = str_repeat( '=', $i ); $text = preg_replace( "/^$h(.+)$h\\s*$/m", "\\1", $text ); } wfProfileOut( __METHOD__ ); return $text; } /** * Replace single quotes with HTML markup * @private * @return string the altered text */ function doAllQuotes( $text ) { wfProfileIn( __METHOD__ ); $outtext = ''; $lines = StringUtils::explode( "\n", $text ); foreach ( $lines as $line ) { $outtext .= $this->doQuotes( $line ) . "\n"; } $outtext = substr($outtext, 0,-1); wfProfileOut( __METHOD__ ); 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 (REL) * * 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; wfProfileIn( __METHOD__ ); $sk = $this->mOptions->getSkin(); $bits = preg_split( $this->mExtLinkBracketedRegex, $text, -1, PREG_SPLIT_DELIM_CAPTURE ); $s = 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 ) { $langObj = $this->getFunctionLang(); $text = '[' . $langObj->formatNum( ++$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 ); if ( $this->mOptions->mExternalLinkTarget ) { $attribs = array( 'target' => $this->mOptions->mExternalLinkTarget ); } else { $attribs = array(); } # 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->getExternalLinkAttribs() ) . $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( __METHOD__ ); return $s; } function getExternalLinkAttribs() { $attribs = array(); global $wgNoFollowLinks, $wgNoFollowNsExceptions; $ns = $this->mTitle->getNamespace(); if( $wgNoFollowLinks && !in_array($ns, $wgNoFollowNsExceptions) ) { $attribs['rel'] = 'nofollow'; } if ( $this->mOptions->getExternalLinkTarget() ) { $attribs['target'] = $this->mOptions->getExternalLinkTarget(); } return $attribs; } /** * 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, through the exception, or through the on-wiki whitelist * @private */ function maybeMakeExternalImage( $url ) { $sk = $this->mOptions->getSkin(); $imagesfrom = $this->mOptions->getAllowExternalImagesFrom(); $imagesexception = !empty($imagesfrom); $text = false; # $imagesfrom could be either a single string or an array of strings, parse out the latter if( $imagesexception && is_array( $imagesfrom ) ) { $imagematch = false; foreach( $imagesfrom as $match ) { if( strpos( $url, $match ) === 0 ) { $imagematch = true; break; } } } elseif( $imagesexception ) { $imagematch = (strpos( $url, $imagesfrom ) === 0); } else { $imagematch = false; } if ( $this->mOptions->getAllowExternalImages() || ( $imagesexception && $imagematch ) ) { if ( preg_match( self::EXT_IMAGE_REGEX, $url ) ) { # Image found $text = $sk->makeExternalImage( $url ); } } if( !$text && $this->mOptions->getEnableImageWhitelist() && preg_match( self::EXT_IMAGE_REGEX, $url ) ) { $whitelist = explode( "\n", wfMsgForContent( 'external_image_whitelist' ) ); foreach( $whitelist as $entry ) { # Sanitize the regex fragment, make it case-insensitive, ignore blank entries/comments if( strpos( $entry, '#' ) === 0 || $entry === '' ) continue; if( preg_match( '/' . str_replace( '/', '\\/', $entry ) . '/i', $url ) ) { # Image matches a whitelist entry $text = $sk->makeExternalImage( $url ); break; } } } return $text; } /** * Process [[ ]] wikilinks * @return processed text * * @private */ function replaceInternalLinks( $s ) { $this->mLinkHolders->merge( $this->replaceInternalLinks2( $s ) ); return $s; } /** * Process [[ ]] wikilinks (RIL) * @return LinkHolderArray * * @private */ function replaceInternalLinks2( &$s ) { global $wgContLang; wfProfileIn( __METHOD__ ); wfProfileIn( __METHOD__.'-setup' ); static $tc = FALSE, $e1, $e1_img; # the % is needed to support urlencoded titles as well if ( !$tc ) { $tc = Title::legalChars() . '#%'; # Match a link having the form [[namespace:link|alternate]]trail $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD"; # Match cases where there is no "]]", which might still be images $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD"; } $sk = $this->mOptions->getSkin(); $holders = new LinkHolderArray( $this ); #split the entire text string on occurences of [[ $a = StringUtils::explode( '[[', ' ' . $s ); #get the first element (all text up to first [[), and remove the space we added $s = $a->current(); $a->next(); $line = $a->current(); # Workaround for broken ArrayIterator::next() that returns "void" $s = substr( $s, 1 ); $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( __METHOD__.'-setup' ); wfProfileOut( __METHOD__ ); 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( __METHOD__.'-setup' ); # Loop for each link for ( ; $line !== false && $line !== null ; $a->next(), $line = $a->current() ) { # Check for excessive memory usage if ( $holders->isBig() ) { # Too big # Do the existence check, replace the link holders and clear the array $holders->replace( $s ); $holders->clear(); } if ( $useLinkPrefixExtension ) { wfProfileIn( __METHOD__.'-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( __METHOD__.'-prefixhandling' ); } $might_be_img = false; wfProfileIn( __METHOD__."-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( __METHOD__."-e1" ); continue; } wfProfileOut( __METHOD__."-e1" ); wfProfileIn( __METHOD__."-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( __METHOD__."-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( __METHOD__."-misc" ); wfProfileIn( __METHOD__."-title" ); $nt = Title::newFromText( $this->mStripState->unstripNoWiki($link) ); if( !$nt ) { $s .= $prefix . '[[' . $line; wfProfileOut( __METHOD__."-title" ); continue; } $ns = $nt->getNamespace(); $iw = $nt->getInterWiki(); wfProfileOut( __METHOD__."-title" ); if ($might_be_img) { # if this is actually an invalid link wfProfileIn( __METHOD__."-might_be_img" ); if ($ns == NS_FILE && $noforce) { #but might be an image $found = false; while ( true ) { #look at the next 'line' to see if we can close it there $a->next(); $next_line = $a->current(); if ( $next_line === false || $next_line === null ) { break; } $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 $holders->merge( $this->replaceInternalLinks2( $text ) ); $s .= "{$prefix}[[$link|$text"; # note: no $trail, because without an end, there *is* no trail wfProfileOut( __METHOD__."-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( __METHOD__."-might_be_img" ); continue; } wfProfileOut( __METHOD__."-might_be_img" ); } $wasblank = ( '' == $text ); if( $wasblank ) $text = $link; # Link not escaped by : , create the various objects if( $noforce ) { # Interwikis wfProfileIn( __METHOD__."-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( __METHOD__."-interwiki" ); continue; } wfProfileOut( __METHOD__."-interwiki" ); if ( $ns == NS_FILE ) { wfProfileIn( __METHOD__."-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); $holders->merge( $this->replaceInternalLinks2( $text ) ); # cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them $s .= $prefix . $this->armorLinks( $this->makeImage( $nt, $text, $holders ) ) . $trail; } $this->mOutput->addImage( $nt->getDBkey() ); wfProfileOut( __METHOD__."-image" ); continue; } if ( $ns == NS_CATEGORY ) { wfProfileIn( __METHOD__."-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( __METHOD__."-category" ); continue; } } # Self-link checking if( $nt->getFragment() === '' && $ns != NS_SPECIAL ) { if( in_array( $nt->getPrefixedText(), $selflink, true ) ) { $s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail ); continue; } } # NS_MEDIA is a pseudo-namespace for linking directly to a file # FIXME: Should do batch file existence checks, see comment below 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->link( $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; } # Some titles, such as valid special pages or files in foreign repos, should # be shown as bluelinks even though they're not included in the page table # # FIXME: isAlwaysKnown() can be expensive for file links; we should really do # batch file existence checks for NS_FILE and NS_MEDIA if( $iw == '' && $nt->isAlwaysKnown() ) { $this->mOutput->addLink( $nt ); $s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix ); } else { # Links will be added to the output link list after checking $s .= $holders->makeHolder( $nt, $text, '', $trail, $prefix ); } } wfProfileOut( __METHOD__ ); return $holders; } /** * Make a link placeholder. The text returned can be later resolved to a real link with * replaceLinkHolders(). This is done for two reasons: firstly to avoid further * parsing of interwiki links, and secondly to allow all existence checks and * article length checks (for stub links) to be bundled into a single query. * * @deprecated */ function makeLinkHolder( &$nt, $text = '', $query = '', $trail = '', $prefix = '' ) { return $this->mLinkHolders->makeHolder( $nt, $text, $query, $trail, $prefix ); } /** * 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. * * Not needed quite as much as it used to be since free links are a bit * more sensible these days. But bracketed links are still an issue. * * @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 wfProfileIn( __METHOD__ ); $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( __METHOD__ ); 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. (DBL) * * @private * @return string the lists rendered as HTML */ function doBlockLevels( $text, $linestart ) { wfProfileIn( __METHOD__ ); # 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 = StringUtils::explode( "\n", $text ); $lastPrefix = $output = ''; $this->mDTopen = $inBlockElem = false; $prefixLength = 0; $paragraphStack = false; foreach ( $textLines as $oLine ) { # Fix up $linestart if ( !$linestart ) { $output .= $oLine; $linestart = true; continue; } $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, '*#:;' );
				$prefix = substr( $oLine, 0, $prefixLength );

				# eh?
				$prefix2 = str_replace( ';', ':', $prefix );
				$t = substr( $oLine, $prefixLength );
				$this->mInPre = (bool)$preOpenMatch;
			} else {
				# Don't interpret any other prefixes in preformatted text
				$prefixLength = 0;
				$prefix = $prefix2 = '';
				$t = $oLine;
			}

			# List generation
			if( $prefixLength && $lastPrefix === $prefix2 ) {
				# Same as the last item, so no need to deal with nesting or opening stuff
				$output .= $this->nextItem( substr( $prefix, -1 ) );
				$paragraphStack = false;

				if ( substr( $prefix, -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( $prefix, $lastPrefix );
				$paragraphStack = false;

				while( $commonPrefixLength < $lastPrefixLength ) {
					$output .= $this->closeList( $lastPrefix[$lastPrefixLength-1] );
					--$lastPrefixLength;
				}
				if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) {
					$output .= $this->nextItem( $prefix[$commonPrefixLength-1] );
				}
				while ( $prefixLength > $commonPrefixLength ) {
					$char = substr( $prefix, $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 = $prefix2;
			}
			if( 0 == $prefixLength ) {
				wfProfileIn( __METHOD__."-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().'

'; $this->mLastSection = 'p'; } } } } wfProfileOut( __METHOD__."-paragraph" ); } // somewhere above we forget to get out of pre block (bug 785) if($preCloseMatch && $this->mInPre) { $this->mInPre = false; } if ($paragraphStack === false) { $output .= $t."\n"; } } while ( $prefixLength ) { $output .= $this->closeList( $prefix2[$prefixLength-1] ); --$prefixLength; } if ( '' != $this->mLastSection ) { $output .= 'mLastSection . '>'; $this->mLastSection = ''; } wfProfileOut( __METHOD__ ); 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) { wfProfileIn( __METHOD__ ); $pos = strpos( $str, ':' ); if( $pos === false ) { // Nothing to find! wfProfileOut( __METHOD__ ); 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( __METHOD__ ); 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( __METHOD__ ); 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( __METHOD__ ); 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( __METHOD__ ); 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( __METHOD__.": Invalid input; too many close tags\n" ); wfProfileOut( __METHOD__ ); 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 " . __METHOD__ ); } } if( $stack > 0 ) { wfDebug( __METHOD__.": Invalid input; not enough close tags (stack $stack, state $state)\n" ); return false; } wfProfileOut( __METHOD__ ); 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::numberingroup('sysop') ); case 'numberofedits': return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::edits() ); case 'numberofviews': return $this->mVarCache[$index] = $wgContLang->formatNum( SiteStats::views() ); 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() { wfProfileIn( __METHOD__ ); $variableIDs = MagicWord::getVariableIDs(); $this->mVariables = new MagicWordArray( $variableIDs ); wfProfileOut( __METHOD__ ); } /** * 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. * Arguments may also be provided as an associative array, as was the usual case before MW1.12. * Providing arguments this way may be useful for extensions wishing to perform variable replacement explicitly. * @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; } wfProfileIn( __METHOD__ ); if ( $frame === false ) { $frame = $this->getPreprocessor()->newFrame(); } elseif ( !( $frame instanceof PPFrame ) ) { wfDebug( __METHOD__." called using plain parameters instead of a PPFrame instance. Creating custom frame.\n" ); $frame = $this->getPreprocessor()->newCustomFrame($frame); } $dom = $this->preprocessToDom( $text ); $flags = $argsOnly ? PPFrame::NO_TEMPLATES : 0; $text = $frame->expand( $dom, $flags ); wfProfileOut( __METHOD__ ); 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 = wfMsgExt( $msgName, array( 'parsemag', 'escape' ), $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, $wgAllowDisplayTitle, $wgNonincludableNamespaces; wfProfileIn( __METHOD__ ); 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 $function 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, $title, true ); } # Do infinite loop check if ( !$frame->loopCheck( $title ) ) { $found = true; $text = '' . wfMsgForContent( 'parser-template-loop-warning', $titleText ) . ''; wfDebug( __METHOD__.": template loop broken at '$titleText'\n" ); } # Do recursion depth check $limit = $this->mOptions->getMaxTemplateDepth(); if ( $frame->depth >= $limit ) { $found = true; $text = '' . wfMsgForContent( 'parser-template-recursion-depth-warning', $limit ) . ''; } } } # Load from database if ( !$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( __METHOD__.": 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( __METHOD__ ); 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( __METHOD__ ); 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 $wgContLang; $message = $wgContLang->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" ); } } # (bug 8068) Allow control over whether robots index a page. # # FIXME (bug 14899): __INDEX__ always overrides __NOINDEX__ here! This # is not desirable, the last one on the page should win. if( isset( $this->mDoubleUnderscores['noindex'] ) ) { $this->mOutput->setIndexPolicy( 'noindex' ); } elseif( isset( $this->mDoubleUnderscores['index'] ) ) { $this->mOutput->setIndexPolicy( 'index' ); } 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, $wgEnforceHtmlIds; $doNumberHeadings = $this->mOptions->getNumberHeadings(); $showEditLink = $this->mOptions->getEditSection(); // Do not call quickUserCan unless necessary if( $showEditLink && !$this->mTitle->quickUserCan( 'edit' ) ) { $showEditLink = 0; } # 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 = $this->replaceLinkHoldersText( $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; if ( $wgEnforceHtmlIds ) { $legacyHeadline = false; $safeHeadline = Sanitizer::escapeId( $safeHeadline, 'noninitial' ); } else { # For reverse compatibility, provide an id that's # HTML4-compatible, like we used to. # # It may be worth noting, academically, that it's possible for # the legacy anchor to conflict with a non-legacy headline # anchor on the page. In this case likely the "correct" thing # would be to either drop the legacy anchors or make sure # they're numbered first. However, this would require people # to type in section names like "abc_.D7.93.D7.90.D7.A4" # manually, so let's not bother worrying about it. $legacyHeadline = Sanitizer::escapeId( $safeHeadline, 'noninitial' ); $safeHeadline = Sanitizer::escapeId( $safeHeadline, 'xml' ); if ( $legacyHeadline == $safeHeadline ) { # No reason to have both (in fact, we can't) $legacyHeadline = false; } elseif ( $legacyHeadline != Sanitizer::escapeId( $legacyHeadline, 'xml' ) ) { # The legacy id is invalid XML. We used to allow this, but # there's no reason to do so anymore. Backward # compatibility will fail slightly in this case, but it's # no big deal. $legacyHeadline = false; } } # HTML names must be case-insensitively unique (bug 10721). FIXME: # Does this apply to Unicode characters? Because we aren't # handling those here. $arrayKey = strtolower( $safeHeadline ); if ( $legacyHeadline === false ) { $legacyArrayKey = false; } else { $legacyArrayKey = strtolower( $legacyHeadline ); } # count how many in assoc. array so we can track dupes in anchors if ( isset( $refers[$arrayKey] ) ) { $refers[$arrayKey]++; } else { $refers[$arrayKey] = 1; } if ( isset( $refers[$legacyArrayKey] ) ) { $refers[$legacyArrayKey]++; } else { $refers[$legacyArrayKey] = 1; } # 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; $legacyAnchor = $legacyHeadline; if ( $refers[$arrayKey] > 1 ) { $anchor .= '_' . $refers[$arrayKey]; } if ( $legacyHeadline !== false && $refers[$legacyArrayKey] > 1 ) { $legacyAnchor .= '_' . $refers[$legacyArrayKey]; } 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->doEditSectionLink(Title::newFromText( $titleText ), "T-$sectionIndex"); } else { $editlink = $sk->doEditSectionLink($this->mTitle, $sectionIndex, $headlineHint); } } else { $editlink = ''; } $head[$headlineCount] = $sk->makeHeadline( $level, $matches['attrib'][$headlineCount], $anchor, $headline, $editlink, $legacyAnchor ); $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 = wfMsgForContent( 'timezone-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)|]] $p4 = "/\[\[(:?$nc+:|:|)($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( $p4, '[[\\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( __METHOD__.": $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( Xml::isWellFormedXmlFragment( $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; $this->setOutputType = self::OT_PREPROCESS; } # Option to disable this feature if ( !$this->mOptions->getCleanSignatures() ) { return $text; } # 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; # Guard against infinite recursion if ( $executing ) { return $text; } $executing = true; wfProfileIn(__METHOD__); $text = $this->preprocess( $text, $wgTitle, $options ); $executing = false; wfProfileOut(__METHOD__); 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 ) { ... } * * Or with SFH_OBJECT_ARGS: * function myParserFunction( $parser, $frame, $args ) { ... } * * 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:...}} * * SFH_OBJECT_ARGS Pass the template arguments as PPNode objects instead of text. This * allows for conditional expansion of the parse tree, allowing you to eliminate dead * branches and thus speed up parsing. It is also possible to analyse the parse tree of * the arguments, and to control the way they are expanded. * * The $frame parameter is a PPFrame. This can be used to produce expanded text from the * arguments, for instance: * $text = isset( $args[0] ) ? $frame->expand( $args[0] ) : ''; * * For technical reasons, $args[0] is pre-expanded and will be a string. This may change in * future versions. Please call $frame->expand() on it anyway so that your code keeps * working if/when this is changed. * * If you want whitespace to be trimmed from $args, you need to do it yourself, post- * expansion. * * Please read the documentation in includes/parser/Preprocessor.php for more information * about the methods available in PPFrame and PPNode. * * @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( __METHOD__.'() 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( $this->mFunctionHooks ); } /** * Replace link placeholders with actual links, in the buffer * Placeholders created in Skin::makeLinkObj() * Returns an array of link CSS classes, indexed by PDBK. */ function replaceLinkHolders( &$text, $options = 0 ) { return $this->mLinkHolders->replace( $text ); } /** * Replace link placeholders with plain text of links * (not HTML-formatted). * @param string $text * @return string */ function replaceLinkHoldersText( $text ) { return $this->mLinkHolders->replaceText( $text ); } /** * Tag hook handler for 'pre'. */ function renderPreTag( $text, $attribs ) { // Backwards-compatibility hack $content = StringUtils::delimiterReplace( '', '', '$1', $text, 'i' ); $attribs = Sanitizer::validateTagAttributes( $attribs, 'pre' ); return Xml::openElement( '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 = StringUtils::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]/*, NS_FILE*/ ); $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_FILE ) { $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', 'link', 'alt' ), ); 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 * @param Title $title * @param string $options * @param LinkHolderArray $holders */ function makeImage( $title, $options, $holders = false ) { # 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 # * alt Text for HTML alt attribute (defaults to empty) # vertical-align values (no % or length right now): # * baseline # * sub # * super # * top # * text-top # * middle # * bottom # * text-bottom $parts = StringUtils::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->link( $title ); } # Get the file $imagename = $title->getDBkey(); if ( isset( $this->mFileCache[$imagename][$time] ) ) { $file = $this->mFileCache[$imagename][$time]; } else { $file = wfFindFile( $title, $time ); if ( count( $this->mFileCache ) > 1000 ) { $this->mFileCache = array(); } $this->mFileCache[$imagename][$time] = $file; } # Get parameter map $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 ) { $part = trim( $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': case 'alt': // @fixme - possibly check validity here for // manualthumb? downstream behavior seems odd with // missing manual thumbs. $validated = true; $value = $this->stripAltText( $value, $holders ); break; case 'link': $chars = self::EXT_LINK_URL_CLASS; $prots = $this->mUrlProtocols; if ( $value === '' ) { $paramName = 'no-link'; $value = true; $validated = true; } elseif ( preg_match( "/^$prots/", $value ) ) { if ( preg_match( "/^($prots)$chars+$/", $value, $m ) ) { $paramName = 'link-url'; $this->mOutput->addExternalLink( $value ); $validated = true; } } else { $linkTitle = Title::newFromText( $value ); if ( $linkTitle ) { $paramName = 'link-title'; $value = $linkTitle; $this->mOutput->addLink( $linkTitle ); $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'] ); } $params['frame']['caption'] = $caption; $params['frame']['title'] = $this->stripAltText( $caption, $holders ); # In the old days, [[Image:Foo|text...]] would set alt text. Later it # came to also set the caption, ordinary text after the image -- which # makes no sense, because that just repeats the text multiple times in # screen readers. It *also* came to set the title attribute. # # Now that we have an alt attribute, we should not set the alt text to # equal the caption: that's worse than useless, it just repeats the # text. This is the framed/thumbnail case. If there's no caption, we # use the unnamed parameter for alt text as well, just for the time be- # ing, if the unnamed param is set and the alt param is not. # # For the future, we need to figure out if we want to tweak this more, # e.g., introducing a title= parameter for the title; ignoring the un- # named parameter entirely for images without a caption; adding an ex- # plicit caption= parameter and preserving the old magic unnamed para- # meter for BC; ... if( $caption !== '' && !isset( $params['frame']['alt'] ) && !isset( $params['frame']['framed'] ) && !isset( $params['frame']['thumbnail'] ) && !isset( $params['frame']['manualthumb'] ) ) { $params['frame']['alt'] = $params['frame']['title']; } 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; } protected function stripAltText( $caption, $holders ) { # Strip bad stuff out of the title (tooltip). We can't just use # replaceLinkHoldersText() here, because if this function is called # from replaceInternalLinks2(), mLinkHolders won't be up-to-date. if ( $holders ) { $tooltip = $holders->replaceText( $caption ); } else { $tooltip = $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 $tooltip = $this->mStripState->unstripBoth( $tooltip ); $tooltip = Sanitizer::stripAllTags( $tooltip ); return $tooltip; } /** * 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() { global $wgCategoryPrefixedDefaultSortkey; if( $this->mDefaultSort !== false ) { return $this->mDefaultSort; } elseif ($this->mTitle->getNamespace() == NS_CATEGORY || !$wgCategoryPrefixedDefaultSortkey) { return $this->mTitle->getText(); } else { return $this->mTitle->getPrefixedText(); } } /** * Accessor for $mDefaultSort * Unlike getDefaultSort(), will return false if none is set * * @return string or false */ public function getCustomDefaultSort() { return $this->mDefaultSort; } /** * 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]; } } }