3 * PHP parser that converts wiki markup to HTML.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
25 * @defgroup Parser Parser
29 * PHP Parser - Processes wiki markup (which uses a more user-friendly
30 * syntax, such as "[[link]]" for making links), and provides a one-way
31 * transformation of that wiki markup it into XHTML output / markup
32 * (which in turn the browser understands, and can display).
35 * There are five main entry points into the Parser class:
37 * produces HTML output
39 * produces altered wiki markup.
41 * removes HTML comments and expands templates
42 * cleanSig() / cleanSigInSig()
43 * Cleans a signature before saving it to preferences
45 * Return the content of a section from an article for section editing
47 * Replaces a section by number inside an article
49 * Removes <noinclude> sections, and <includeonly> tags.
54 * NOT $wgUser or $wgTitle or $wgRequest or $wgLang. Keep them away!
57 * $wgUseDynamicDates*, $wgInterwikiMagic*,
58 * $wgNamespacesWithSubpages, $wgAllowExternalImages*,
59 * $wgLocaltimezone, $wgAllowSpecialInclusion*,
62 * * only within ParserOptions
69 * Update this version number when the ParserOutput format
70 * changes in an incompatible way, so the parser cache
71 * can automatically discard old data.
73 const VERSION
= '1.6.4';
76 * Update this version number when the output of serialiseHalfParsedText()
77 * changes in an incompatible way
79 const HALF_PARSED_VERSION
= 2;
81 # Flags for Parser::setFunctionHook
82 # Also available as global constants from Defines.php
83 const SFH_NO_HASH
= 1;
84 const SFH_OBJECT_ARGS
= 2;
86 # Constants needed for external link processing
87 # Everything except bracket, space, or control characters
88 # \p{Zs} is unicode 'separator, space' category. It covers the space 0x20
89 # as well as U+3000 is IDEOGRAPHIC SPACE for bug 19052
90 const EXT_LINK_URL_CLASS
= '[^][<>"\\x00-\\x20\\x7F\p{Zs}]';
91 const EXT_IMAGE_REGEX
= '/^(http:\/\/|https:\/\/)([^][<>"\\x00-\\x20\\x7F\p{Zs}]+)
92 \\/([A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]+)\\.((?i)gif|png|jpg|jpeg)$/Sxu';
94 # State constants for the definition list colon extraction
95 const COLON_STATE_TEXT
= 0;
96 const COLON_STATE_TAG
= 1;
97 const COLON_STATE_TAGSTART
= 2;
98 const COLON_STATE_CLOSETAG
= 3;
99 const COLON_STATE_TAGSLASH
= 4;
100 const COLON_STATE_COMMENT
= 5;
101 const COLON_STATE_COMMENTDASH
= 6;
102 const COLON_STATE_COMMENTDASHDASH
= 7;
104 # Flags for preprocessToDom
105 const PTD_FOR_INCLUSION
= 1;
107 # Allowed values for $this->mOutputType
108 # Parameter to startExternalParse().
109 const OT_HTML
= 1; # like parse()
110 const OT_WIKI
= 2; # like preSaveTransform()
111 const OT_PREPROCESS
= 3; # like preprocess()
113 const OT_PLAIN
= 4; # like extractSections() - portions of the original are returned unchanged.
115 # Marker Suffix needs to be accessible staticly.
116 const MARKER_SUFFIX
= "-QINU\x7f";
119 var $mTagHooks = array();
120 var $mTransparentTagHooks = array();
121 var $mFunctionHooks = array();
122 var $mFunctionSynonyms = array( 0 => array(), 1 => array() );
123 var $mFunctionTagHooks = array();
124 var $mStripList = array();
125 var $mDefaultStripList = array();
126 var $mVarCache = array();
127 var $mImageParams = array();
128 var $mImageParamsMagicArray = array();
129 var $mMarkerIndex = 0;
130 var $mFirstCall = true;
132 # Initialised by initialiseVariables()
135 * @var MagicWordArray
140 * @var MagicWordArray
143 var $mConf, $mPreprocessor, $mExtLinkBracketedRegex, $mUrlProtocols; # Initialised in constructor
145 # Cleared with clearState():
150 var $mAutonumber, $mDTopen;
157 var $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
159 * @var LinkHolderArray
164 var $mIncludeSizes, $mPPNodeCount, $mHighestExpansionDepth, $mDefaultSort;
165 var $mTplExpandCache; # empty-frame expansion cache
166 var $mTplRedirCache, $mTplDomCache, $mHeadings, $mDoubleUnderscores;
167 var $mExpensiveFunctionCount; # number of expensive parser function calls
168 var $mShowToc, $mForceTocPosition;
173 var $mUser; # User object; only used when doing pre-save transform
176 # These are variables reset at least once per parse regardless of $clearState
186 var $mTitle; # Title context, used for self-link rendering and similar things
187 var $mOutputType; # Output type, one of the OT_xxx constants
188 var $ot; # Shortcut alias, see setOutputType()
189 var $mRevisionObject; # The revision object of the specified revision ID
190 var $mRevisionId; # ID to display in {{REVISIONID}} tags
191 var $mRevisionTimestamp; # The timestamp of the specified revision ID
192 var $mRevisionUser; # User to display in {{REVISIONUSER}} tag
193 var $mRevIdForTs; # The revision ID which was used to fetch the timestamp
205 public function __construct( $conf = array() ) {
206 $this->mConf
= $conf;
207 $this->mUrlProtocols
= wfUrlProtocols();
208 $this->mExtLinkBracketedRegex
= '/\[((' . $this->mUrlProtocols
. ')'.
209 self
::EXT_LINK_URL_CLASS
.'+)\p{Zs}*([^\]\\x00-\\x08\\x0a-\\x1F]*?)\]/Su';
210 if ( isset( $conf['preprocessorClass'] ) ) {
211 $this->mPreprocessorClass
= $conf['preprocessorClass'];
212 } elseif ( defined( 'MW_COMPILED' ) ) {
213 # Preprocessor_Hash is much faster than Preprocessor_DOM in compiled mode
214 $this->mPreprocessorClass
= 'Preprocessor_Hash';
215 } elseif ( extension_loaded( 'domxml' ) ) {
216 # PECL extension that conflicts with the core DOM extension (bug 13770)
217 wfDebug( "Warning: you have the obsolete domxml extension for PHP. Please remove it!\n" );
218 $this->mPreprocessorClass
= 'Preprocessor_Hash';
219 } elseif ( extension_loaded( 'dom' ) ) {
220 $this->mPreprocessorClass
= 'Preprocessor_DOM';
222 $this->mPreprocessorClass
= 'Preprocessor_Hash';
224 wfDebug( __CLASS__
. ": using preprocessor: {$this->mPreprocessorClass}\n" );
228 * Reduce memory usage to reduce the impact of circular references
230 function __destruct() {
231 if ( isset( $this->mLinkHolders
) ) {
232 unset( $this->mLinkHolders
);
234 foreach ( $this as $name => $value ) {
235 unset( $this->$name );
240 * Do various kinds of initialisation on the first call of the parser
242 function firstCallInit() {
243 if ( !$this->mFirstCall
) {
246 $this->mFirstCall
= false;
248 wfProfileIn( __METHOD__
);
250 CoreParserFunctions
::register( $this );
251 CoreTagHooks
::register( $this );
252 $this->initialiseVariables();
254 wfRunHooks( 'ParserFirstCallInit', array( &$this ) );
255 wfProfileOut( __METHOD__
);
263 function clearState() {
264 wfProfileIn( __METHOD__
);
265 if ( $this->mFirstCall
) {
266 $this->firstCallInit();
268 $this->mOutput
= new ParserOutput
;
269 $this->mOptions
->registerWatcher( array( $this->mOutput
, 'recordOption' ) );
270 $this->mAutonumber
= 0;
271 $this->mLastSection
= '';
272 $this->mDTopen
= false;
273 $this->mIncludeCount
= array();
274 $this->mArgStack
= false;
275 $this->mInPre
= false;
276 $this->mLinkHolders
= new LinkHolderArray( $this );
278 $this->mRevisionObject
= $this->mRevisionTimestamp
=
279 $this->mRevisionId
= $this->mRevisionUser
= null;
280 $this->mVarCache
= array();
284 * Prefix for temporary replacement strings for the multipass parser.
285 * \x07 should never appear in input as it's disallowed in XML.
286 * Using it at the front also gives us a little extra robustness
287 * since it shouldn't match when butted up against identifier-like
290 * Must not consist of all title characters, or else it will change
291 * the behaviour of <nowiki> in a link.
293 $this->mUniqPrefix
= "\x7fUNIQ" . self
::getRandomString();
294 $this->mStripState
= new StripState( $this->mUniqPrefix
);
297 # Clear these on every parse, bug 4549
298 $this->mTplExpandCache
= $this->mTplRedirCache
= $this->mTplDomCache
= array();
300 $this->mShowToc
= true;
301 $this->mForceTocPosition
= false;
302 $this->mIncludeSizes
= array(
306 $this->mPPNodeCount
= 0;
307 $this->mHighestExpansionDepth
= 0;
308 $this->mDefaultSort
= false;
309 $this->mHeadings
= array();
310 $this->mDoubleUnderscores
= array();
311 $this->mExpensiveFunctionCount
= 0;
314 if ( isset( $this->mPreprocessor
) && $this->mPreprocessor
->parser
!== $this ) {
315 $this->mPreprocessor
= null;
318 wfRunHooks( 'ParserClearState', array( &$this ) );
319 wfProfileOut( __METHOD__
);
323 * Convert wikitext to HTML
324 * Do not call this function recursively.
326 * @param $text String: text we want to parse
327 * @param $title Title object
328 * @param $options ParserOptions
329 * @param $linestart boolean
330 * @param $clearState boolean
331 * @param $revid Int: number to pass in {{REVISIONID}}
332 * @return ParserOutput a ParserOutput
334 public function parse( $text, Title
$title, ParserOptions
$options, $linestart = true, $clearState = true, $revid = null ) {
336 * First pass--just handle <nowiki> sections, pass the rest off
337 * to internalParse() which does all the real work.
340 global $wgUseTidy, $wgAlwaysUseTidy, $wgDisableLangConversion, $wgDisableTitleConversion;
341 $fname = __METHOD__
.'-' . wfGetCaller();
342 wfProfileIn( __METHOD__
);
343 wfProfileIn( $fname );
345 $this->startParse( $title, $options, self
::OT_HTML
, $clearState );
347 # Remove the strip marker tag prefix from the input, if present.
349 $text = str_replace( $this->mUniqPrefix
, '', $text );
352 $oldRevisionId = $this->mRevisionId
;
353 $oldRevisionObject = $this->mRevisionObject
;
354 $oldRevisionTimestamp = $this->mRevisionTimestamp
;
355 $oldRevisionUser = $this->mRevisionUser
;
356 if ( $revid !== null ) {
357 $this->mRevisionId
= $revid;
358 $this->mRevisionObject
= null;
359 $this->mRevisionTimestamp
= null;
360 $this->mRevisionUser
= null;
363 wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState
) );
365 wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState
) );
366 $text = $this->internalParse( $text );
368 $text = $this->mStripState
->unstripGeneral( $text );
370 # Clean up special characters, only run once, next-to-last before doBlockLevels
372 # french spaces, last one Guillemet-left
373 # only if there is something before the space
374 '/(.) (?=\\?|:|;|!|%|\\302\\273)/' => '\\1 ',
375 # french spaces, Guillemet-right
376 '/(\\302\\253) /' => '\\1 ',
377 '/ (!\s*important)/' => ' \\1', # Beware of CSS magic word !important, bug #11874.
379 $text = preg_replace( array_keys( $fixtags ), array_values( $fixtags ), $text );
381 $text = $this->doBlockLevels( $text, $linestart );
383 $this->replaceLinkHolders( $text );
386 * The input doesn't get language converted if
388 * b) Content isn't converted
389 * c) It's a conversion table
390 * d) it is an interface message (which is in the user language)
392 if ( !( $wgDisableLangConversion
393 ||
isset( $this->mDoubleUnderscores
['nocontentconvert'] )
394 ||
$this->mTitle
->isConversionTable() ) )
396 # Run convert unconditionally in 1.18-compatible mode
397 global $wgBug34832TransitionalRollback;
398 if ( $wgBug34832TransitionalRollback ||
!$this->mOptions
->getInterfaceMessage() ) {
399 # The position of the convert() call should not be changed. it
400 # assumes that the links are all replaced and the only thing left
401 # is the <nowiki> mark.
402 $text = $this->getConverterLanguage()->convert( $text );
407 * A converted title will be provided in the output object if title and
408 * content conversion are enabled, the article text does not contain
409 * a conversion-suppressing double-underscore tag, and no
410 * {{DISPLAYTITLE:...}} is present. DISPLAYTITLE takes precedence over
411 * automatic link conversion.
413 if ( !( $wgDisableLangConversion
414 ||
$wgDisableTitleConversion
415 ||
isset( $this->mDoubleUnderscores
['nocontentconvert'] )
416 ||
isset( $this->mDoubleUnderscores
['notitleconvert'] )
417 ||
$this->mOutput
->getDisplayTitle() !== false ) )
419 $convruletitle = $this->getConverterLanguage()->getConvRuleTitle();
420 if ( $convruletitle ) {
421 $this->mOutput
->setTitleText( $convruletitle );
423 $titleText = $this->getConverterLanguage()->convertTitle( $title );
424 $this->mOutput
->setTitleText( $titleText );
428 $text = $this->mStripState
->unstripNoWiki( $text );
430 wfRunHooks( 'ParserBeforeTidy', array( &$this, &$text ) );
432 $text = $this->replaceTransparentTags( $text );
433 $text = $this->mStripState
->unstripGeneral( $text );
435 $text = Sanitizer
::normalizeCharReferences( $text );
437 if ( ( $wgUseTidy && $this->mOptions
->getTidy() ) ||
$wgAlwaysUseTidy ) {
438 $text = MWTidy
::tidy( $text );
440 # attempt to sanitize at least some nesting problems
441 # (bug #2702 and quite a few others)
443 # ''Something [http://www.cool.com cool''] -->
444 # <i>Something</i><a href="http://www.cool.com"..><i>cool></i></a>
445 '/(<([bi])>)(<([bi])>)?([^<]*)(<\/?a[^<]*>)([^<]*)(<\/\\4>)?(<\/\\2>)/' =>
446 '\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9',
447 # fix up an anchor inside another anchor, only
448 # at least for a single single nested link (bug 3695)
449 '/(<a[^>]+>)([^<]*)(<a[^>]+>[^<]*)<\/a>(.*)<\/a>/' =>
450 '\\1\\2</a>\\3</a>\\1\\4</a>',
451 # fix div inside inline elements- doBlockLevels won't wrap a line which
452 # contains a div, so fix it up here; replace
453 # div with escaped text
454 '/(<([aib]) [^>]+>)([^<]*)(<div([^>]*)>)(.*)(<\/div>)([^<]*)(<\/\\2>)/' =>
455 '\\1\\3<div\\5>\\6</div>\\8\\9',
456 # remove empty italic or bold tag pairs, some
457 # introduced by rules above
458 '/<([bi])><\/\\1>/' => '',
461 $text = preg_replace(
462 array_keys( $tidyregs ),
463 array_values( $tidyregs ),
466 global $wgExpensiveParserFunctionLimit;
467 if ( $this->mExpensiveFunctionCount
> $wgExpensiveParserFunctionLimit ) {
468 $this->limitationWarn( 'expensive-parserfunction', $this->mExpensiveFunctionCount
, $wgExpensiveParserFunctionLimit );
471 wfRunHooks( 'ParserAfterTidy', array( &$this, &$text ) );
473 # Information on include size limits, for the benefit of users who try to skirt them
474 if ( $this->mOptions
->getEnableLimitReport() ) {
475 $max = $this->mOptions
->getMaxIncludeSize();
476 $PFreport = "Expensive parser function count: {$this->mExpensiveFunctionCount}/$wgExpensiveParserFunctionLimit\n";
478 "NewPP limit report\n" .
479 "Preprocessor node count: {$this->mPPNodeCount}/{$this->mOptions->getMaxPPNodeCount()}\n" .
480 "Post-expand include size: {$this->mIncludeSizes['post-expand']}/$max bytes\n" .
481 "Template argument size: {$this->mIncludeSizes['arg']}/$max bytes\n".
482 "Highest expansion depth: {$this->mHighestExpansionDepth}/{$this->mOptions->getMaxPPExpandDepth()}\n".
484 wfRunHooks( 'ParserLimitReport', array( $this, &$limitReport ) );
485 $text .= "\n<!-- \n$limitReport-->\n";
487 $this->mOutput
->setText( $text );
489 $this->mRevisionId
= $oldRevisionId;
490 $this->mRevisionObject
= $oldRevisionObject;
491 $this->mRevisionTimestamp
= $oldRevisionTimestamp;
492 $this->mRevisionUser
= $oldRevisionUser;
493 wfProfileOut( $fname );
494 wfProfileOut( __METHOD__
);
496 return $this->mOutput
;
500 * Recursive parser entry point that can be called from an extension tag
503 * If $frame is not provided, then template variables (e.g., {{{1}}}) within $text are not expanded
505 * @param $text String: text extension wants to have parsed
506 * @param $frame PPFrame: The frame to use for expanding any template variables
510 function recursiveTagParse( $text, $frame=false ) {
511 wfProfileIn( __METHOD__
);
512 wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState
) );
513 wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState
) );
514 $text = $this->internalParse( $text, false, $frame );
515 wfProfileOut( __METHOD__
);
520 * Expand templates and variables in the text, producing valid, static wikitext.
521 * Also removes comments.
522 * @return mixed|string
524 function preprocess( $text, Title
$title, ParserOptions
$options, $revid = null ) {
525 wfProfileIn( __METHOD__
);
526 $this->startParse( $title, $options, self
::OT_PREPROCESS
, true );
527 if ( $revid !== null ) {
528 $this->mRevisionId
= $revid;
530 wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState
) );
531 wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState
) );
532 $text = $this->replaceVariables( $text );
533 $text = $this->mStripState
->unstripBoth( $text );
534 wfProfileOut( __METHOD__
);
539 * Recursive parser entry point that can be called from an extension tag
542 * @param $text String: text to be expanded
543 * @param $frame PPFrame: The frame to use for expanding any template variables
547 public function recursivePreprocess( $text, $frame = false ) {
548 wfProfileIn( __METHOD__
);
549 $text = $this->replaceVariables( $text, $frame );
550 $text = $this->mStripState
->unstripBoth( $text );
551 wfProfileOut( __METHOD__
);
556 * Process the wikitext for the ?preload= feature. (bug 5210)
558 * <noinclude>, <includeonly> etc. are parsed as for template transclusion,
559 * comments, templates, arguments, tags hooks and parser functions are untouched.
561 * @param $text String
562 * @param $title Title
563 * @param $options ParserOptions
566 public function getPreloadText( $text, Title
$title, ParserOptions
$options ) {
567 # Parser (re)initialisation
568 $this->startParse( $title, $options, self
::OT_PLAIN
, true );
570 $flags = PPFrame
::NO_ARGS | PPFrame
::NO_TEMPLATES
;
571 $dom = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
572 $text = $this->getPreprocessor()->newFrame()->expand( $dom, $flags );
573 $text = $this->mStripState
->unstripBoth( $text );
578 * Get a random string
582 static public function getRandomString() {
583 return wfRandomString( 16 );
587 * Set the current user.
588 * Should only be used when doing pre-save transform.
590 * @param $user Mixed: User object or null (to reset)
592 function setUser( $user ) {
593 $this->mUser
= $user;
597 * Accessor for mUniqPrefix.
601 public function uniqPrefix() {
602 if ( !isset( $this->mUniqPrefix
) ) {
603 # @todo FIXME: This is probably *horribly wrong*
604 # LanguageConverter seems to want $wgParser's uniqPrefix, however
605 # if this is called for a parser cache hit, the parser may not
606 # have ever been initialized in the first place.
607 # Not really sure what the heck is supposed to be going on here.
609 # throw new MWException( "Accessing uninitialized mUniqPrefix" );
611 return $this->mUniqPrefix
;
615 * Set the context title
619 function setTitle( $t ) {
620 if ( !$t ||
$t instanceof FakeTitle
) {
621 $t = Title
::newFromText( 'NO TITLE' );
624 if ( strval( $t->getFragment() ) !== '' ) {
625 # Strip the fragment to avoid various odd effects
626 $this->mTitle
= clone $t;
627 $this->mTitle
->setFragment( '' );
634 * Accessor for the Title object
636 * @return Title object
638 function getTitle() {
639 return $this->mTitle
;
643 * Accessor/mutator for the Title object
645 * @param $x Title object or null to just get the current one
646 * @return Title object
648 function Title( $x = null ) {
649 return wfSetVar( $this->mTitle
, $x );
653 * Set the output type
655 * @param $ot Integer: new value
657 function setOutputType( $ot ) {
658 $this->mOutputType
= $ot;
661 'html' => $ot == self
::OT_HTML
,
662 'wiki' => $ot == self
::OT_WIKI
,
663 'pre' => $ot == self
::OT_PREPROCESS
,
664 'plain' => $ot == self
::OT_PLAIN
,
669 * Accessor/mutator for the output type
671 * @param $x int|null New value or null to just get the current one
674 function OutputType( $x = null ) {
675 return wfSetVar( $this->mOutputType
, $x );
679 * Get the ParserOutput object
681 * @return ParserOutput object
683 function getOutput() {
684 return $this->mOutput
;
688 * Get the ParserOptions object
690 * @return ParserOptions object
692 function getOptions() {
693 return $this->mOptions
;
697 * Accessor/mutator for the ParserOptions object
699 * @param $x ParserOptions New value or null to just get the current one
700 * @return ParserOptions Current ParserOptions object
702 function Options( $x = null ) {
703 return wfSetVar( $this->mOptions
, $x );
709 function nextLinkID() {
710 return $this->mLinkID++
;
716 function setLinkID( $id ) {
717 $this->mLinkID
= $id;
721 * Get a language object for use in parser functions such as {{FORMATNUM:}}
724 function getFunctionLang() {
725 return $this->getTargetLanguage();
729 * Get the target language for the content being parsed. This is usually the
730 * language that the content is in.
732 function getTargetLanguage() {
733 $target = $this->mOptions
->getTargetLanguage();
734 if ( $target !== null ) {
736 } elseif( $this->mOptions
->getInterfaceMessage() ) {
737 return $this->mOptions
->getUserLangObj();
738 } elseif( is_null( $this->mTitle
) ) {
739 throw new MWException( __METHOD__
.': $this->mTitle is null' );
741 return $this->mTitle
->getPageLanguage();
745 * Get the language object for language conversion
747 function getConverterLanguage() {
748 global $wgBug34832TransitionalRollback, $wgContLang;
749 if ( $wgBug34832TransitionalRollback ) {
752 return $this->getTargetLanguage();
757 * Get a User object either from $this->mUser, if set, or from the
758 * ParserOptions object otherwise
760 * @return User object
763 if ( !is_null( $this->mUser
) ) {
766 return $this->mOptions
->getUser();
770 * Get a preprocessor object
772 * @return Preprocessor instance
774 function getPreprocessor() {
775 if ( !isset( $this->mPreprocessor
) ) {
776 $class = $this->mPreprocessorClass
;
777 $this->mPreprocessor
= new $class( $this );
779 return $this->mPreprocessor
;
783 * Replaces all occurrences of HTML-style comments and the given tags
784 * in the text with a random marker and returns the next text. The output
785 * parameter $matches will be an associative array filled with data in
787 * 'UNIQ-xxxxx' => array(
790 * array( 'param' => 'x' ),
791 * '<element param="x">tag content</element>' ) )
793 * @param $elements array list of element names. Comments are always extracted.
794 * @param $text string Source text string.
795 * @param $matches array Out parameter, Array: extracted tags
796 * @param $uniq_prefix string
797 * @return String: stripped text
799 public static function extractTagsAndParams( $elements, $text, &$matches, $uniq_prefix = '' ) {
804 $taglist = implode( '|', $elements );
805 $start = "/<($taglist)(\\s+[^>]*?|\\s*?)(\/?" . ">)|<(!--)/i";
807 while ( $text != '' ) {
808 $p = preg_split( $start, $text, 2, PREG_SPLIT_DELIM_CAPTURE
);
810 if ( count( $p ) < 5 ) {
813 if ( count( $p ) > 5 ) {
827 $marker = "$uniq_prefix-$element-" . sprintf( '%08X', $n++
) . self
::MARKER_SUFFIX
;
828 $stripped .= $marker;
830 if ( $close === '/>' ) {
831 # Empty element tag, <tag />
836 if ( $element === '!--' ) {
839 $end = "/(<\\/$element\\s*>)/i";
841 $q = preg_split( $end, $inside, 2, PREG_SPLIT_DELIM_CAPTURE
);
843 if ( count( $q ) < 3 ) {
844 # No end tag -- let it run out to the end of the text.
853 $matches[$marker] = array( $element,
855 Sanitizer
::decodeTagAttributes( $attributes ),
856 "<$element$attributes$close$content$tail" );
862 * Get a list of strippable XML-like elements
866 function getStripList() {
867 return $this->mStripList
;
871 * Add an item to the strip state
872 * Returns the unique tag which must be inserted into the stripped text
873 * The tag will be replaced with the original text in unstrip()
875 * @param $text string
879 function insertStripItem( $text ) {
880 $rnd = "{$this->mUniqPrefix}-item-{$this->mMarkerIndex}-" . self
::MARKER_SUFFIX
;
881 $this->mMarkerIndex++
;
882 $this->mStripState
->addGeneral( $rnd, $text );
887 * parse the wiki syntax used to render tables
892 function doTableStuff( $text ) {
893 wfProfileIn( __METHOD__
);
895 $lines = StringUtils
::explode( "\n", $text );
897 $td_history = array(); # Is currently a td tag open?
898 $last_tag_history = array(); # Save history of last lag activated (td, th or caption)
899 $tr_history = array(); # Is currently a tr tag open?
900 $tr_attributes = array(); # history of tr attributes
901 $has_opened_tr = array(); # Did this table open a <tr> element?
902 $indent_level = 0; # indent level of the table
904 foreach ( $lines as $outLine ) {
905 $line = trim( $outLine );
907 if ( $line === '' ) { # empty line, go to next line
908 $out .= $outLine."\n";
912 $first_character = $line[0];
915 if ( preg_match( '/^(:*)\{\|(.*)$/', $line , $matches ) ) {
916 # First check if we are starting a new table
917 $indent_level = strlen( $matches[1] );
919 $attributes = $this->mStripState
->unstripBoth( $matches[2] );
920 $attributes = Sanitizer
::fixTagAttributes( $attributes , 'table' );
922 $outLine = str_repeat( '<dl><dd>' , $indent_level ) . "<table{$attributes}>";
923 array_push( $td_history , false );
924 array_push( $last_tag_history , '' );
925 array_push( $tr_history , false );
926 array_push( $tr_attributes , '' );
927 array_push( $has_opened_tr , false );
928 } elseif ( count( $td_history ) == 0 ) {
929 # Don't do any of the following
930 $out .= $outLine."\n";
932 } elseif ( substr( $line , 0 , 2 ) === '|}' ) {
933 # We are ending a table
934 $line = '</table>' . substr( $line , 2 );
935 $last_tag = array_pop( $last_tag_history );
937 if ( !array_pop( $has_opened_tr ) ) {
938 $line = "<tr><td></td></tr>{$line}";
941 if ( array_pop( $tr_history ) ) {
942 $line = "</tr>{$line}";
945 if ( array_pop( $td_history ) ) {
946 $line = "</{$last_tag}>{$line}";
948 array_pop( $tr_attributes );
949 $outLine = $line . str_repeat( '</dd></dl>' , $indent_level );
950 } elseif ( substr( $line , 0 , 2 ) === '|-' ) {
951 # Now we have a table row
952 $line = preg_replace( '#^\|-+#', '', $line );
954 # Whats after the tag is now only attributes
955 $attributes = $this->mStripState
->unstripBoth( $line );
956 $attributes = Sanitizer
::fixTagAttributes( $attributes, 'tr' );
957 array_pop( $tr_attributes );
958 array_push( $tr_attributes, $attributes );
961 $last_tag = array_pop( $last_tag_history );
962 array_pop( $has_opened_tr );
963 array_push( $has_opened_tr , true );
965 if ( array_pop( $tr_history ) ) {
969 if ( array_pop( $td_history ) ) {
970 $line = "</{$last_tag}>{$line}";
974 array_push( $tr_history , false );
975 array_push( $td_history , false );
976 array_push( $last_tag_history , '' );
977 } elseif ( $first_character === '|' ||
$first_character === '!' ||
substr( $line , 0 , 2 ) === '|+' ) {
978 # This might be cell elements, td, th or captions
979 if ( substr( $line , 0 , 2 ) === '|+' ) {
980 $first_character = '+';
981 $line = substr( $line , 1 );
984 $line = substr( $line , 1 );
986 if ( $first_character === '!' ) {
987 $line = str_replace( '!!' , '||' , $line );
990 # Split up multiple cells on the same line.
991 # FIXME : This can result in improper nesting of tags processed
992 # by earlier parser steps, but should avoid splitting up eg
993 # attribute values containing literal "||".
994 $cells = StringUtils
::explodeMarkup( '||' , $line );
998 # Loop through each table cell
999 foreach ( $cells as $cell ) {
1001 if ( $first_character !== '+' ) {
1002 $tr_after = array_pop( $tr_attributes );
1003 if ( !array_pop( $tr_history ) ) {
1004 $previous = "<tr{$tr_after}>\n";
1006 array_push( $tr_history , true );
1007 array_push( $tr_attributes , '' );
1008 array_pop( $has_opened_tr );
1009 array_push( $has_opened_tr , true );
1012 $last_tag = array_pop( $last_tag_history );
1014 if ( array_pop( $td_history ) ) {
1015 $previous = "</{$last_tag}>\n{$previous}";
1018 if ( $first_character === '|' ) {
1020 } elseif ( $first_character === '!' ) {
1022 } elseif ( $first_character === '+' ) {
1023 $last_tag = 'caption';
1028 array_push( $last_tag_history , $last_tag );
1030 # A cell could contain both parameters and data
1031 $cell_data = explode( '|' , $cell , 2 );
1033 # Bug 553: Note that a '|' inside an invalid link should not
1034 # be mistaken as delimiting cell parameters
1035 if ( strpos( $cell_data[0], '[[' ) !== false ) {
1036 $cell = "{$previous}<{$last_tag}>{$cell}";
1037 } elseif ( count( $cell_data ) == 1 ) {
1038 $cell = "{$previous}<{$last_tag}>{$cell_data[0]}";
1040 $attributes = $this->mStripState
->unstripBoth( $cell_data[0] );
1041 $attributes = Sanitizer
::fixTagAttributes( $attributes , $last_tag );
1042 $cell = "{$previous}<{$last_tag}{$attributes}>{$cell_data[1]}";
1046 array_push( $td_history , true );
1049 $out .= $outLine . "\n";
1052 # Closing open td, tr && table
1053 while ( count( $td_history ) > 0 ) {
1054 if ( array_pop( $td_history ) ) {
1057 if ( array_pop( $tr_history ) ) {
1060 if ( !array_pop( $has_opened_tr ) ) {
1061 $out .= "<tr><td></td></tr>\n" ;
1064 $out .= "</table>\n";
1067 # Remove trailing line-ending (b/c)
1068 if ( substr( $out, -1 ) === "\n" ) {
1069 $out = substr( $out, 0, -1 );
1072 # special case: don't return empty table
1073 if ( $out === "<table>\n<tr><td></td></tr>\n</table>" ) {
1077 wfProfileOut( __METHOD__
);
1083 * Helper function for parse() that transforms wiki markup into
1084 * HTML. Only called for $mOutputType == self::OT_HTML.
1088 * @param $text string
1089 * @param $isMain bool
1090 * @param $frame bool
1094 function internalParse( $text, $isMain = true, $frame = false ) {
1095 wfProfileIn( __METHOD__
);
1099 # Hook to suspend the parser in this state
1100 if ( !wfRunHooks( 'ParserBeforeInternalParse', array( &$this, &$text, &$this->mStripState
) ) ) {
1101 wfProfileOut( __METHOD__
);
1105 # if $frame is provided, then use $frame for replacing any variables
1107 # use frame depth to infer how include/noinclude tags should be handled
1108 # depth=0 means this is the top-level document; otherwise it's an included document
1109 if ( !$frame->depth
) {
1112 $flag = Parser
::PTD_FOR_INCLUSION
;
1114 $dom = $this->preprocessToDom( $text, $flag );
1115 $text = $frame->expand( $dom );
1117 # if $frame is not provided, then use old-style replaceVariables
1118 $text = $this->replaceVariables( $text );
1121 $text = Sanitizer
::removeHTMLtags( $text, array( &$this, 'attributeStripCallback' ), false, array_keys( $this->mTransparentTagHooks
) );
1122 wfRunHooks( 'InternalParseBeforeLinks', array( &$this, &$text, &$this->mStripState
) );
1124 # Tables need to come after variable replacement for things to work
1125 # properly; putting them before other transformations should keep
1126 # exciting things like link expansions from showing up in surprising
1128 $text = $this->doTableStuff( $text );
1130 $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
1132 $text = $this->doDoubleUnderscore( $text );
1134 $text = $this->doHeadings( $text );
1135 if ( $this->mOptions
->getUseDynamicDates() ) {
1136 $df = DateFormatter
::getInstance();
1137 $text = $df->reformat( $this->mOptions
->getDateFormat(), $text );
1139 $text = $this->replaceInternalLinks( $text );
1140 $text = $this->doAllQuotes( $text );
1141 $text = $this->replaceExternalLinks( $text );
1143 # replaceInternalLinks may sometimes leave behind
1144 # absolute URLs, which have to be masked to hide them from replaceExternalLinks
1145 $text = str_replace( $this->mUniqPrefix
.'NOPARSE', '', $text );
1147 $text = $this->doMagicLinks( $text );
1148 $text = $this->formatHeadings( $text, $origText, $isMain );
1150 wfProfileOut( __METHOD__
);
1155 * Replace special strings like "ISBN xxx" and "RFC xxx" with
1156 * magic external links.
1161 * @param $text string
1165 function doMagicLinks( $text ) {
1166 wfProfileIn( __METHOD__
);
1167 $prots = wfUrlProtocolsWithoutProtRel();
1168 $urlChar = self
::EXT_LINK_URL_CLASS
;
1169 $text = preg_replace_callback(
1171 (<a[ \t\r\n>].*?</a>) | # m[1]: Skip link text
1172 (<.*?>) | # m[2]: Skip stuff inside HTML elements' . "
1173 (\\b(?:$prots)$urlChar+) | # m[3]: Free external links" . '
1174 (?:RFC|PMID)\s+([0-9]+) | # m[4]: RFC or PMID, capture number
1175 ISBN\s+(\b # m[5]: ISBN, capture number
1176 (?: 97[89] [\ \-]? )? # optional 13-digit ISBN prefix
1177 (?: [0-9] [\ \-]? ){9} # 9 digits with opt. delimiters
1178 [0-9Xx] # check digit
1180 )!xu', array( &$this, 'magicLinkCallback' ), $text );
1181 wfProfileOut( __METHOD__
);
1186 * @throws MWException
1188 * @return HTML|string
1190 function magicLinkCallback( $m ) {
1191 if ( isset( $m[1] ) && $m[1] !== '' ) {
1194 } elseif ( isset( $m[2] ) && $m[2] !== '' ) {
1197 } elseif ( isset( $m[3] ) && $m[3] !== '' ) {
1198 # Free external link
1199 return $this->makeFreeExternalLink( $m[0] );
1200 } elseif ( isset( $m[4] ) && $m[4] !== '' ) {
1202 if ( substr( $m[0], 0, 3 ) === 'RFC' ) {
1205 $CssClass = 'mw-magiclink-rfc';
1207 } elseif ( substr( $m[0], 0, 4 ) === 'PMID' ) {
1209 $urlmsg = 'pubmedurl';
1210 $CssClass = 'mw-magiclink-pmid';
1213 throw new MWException( __METHOD__
.': unrecognised match type "' .
1214 substr( $m[0], 0, 20 ) . '"' );
1216 $url = wfMsgForContent( $urlmsg, $id );
1217 return Linker
::makeExternalLink( $url, "{$keyword} {$id}", true, $CssClass );
1218 } elseif ( isset( $m[5] ) && $m[5] !== '' ) {
1221 $num = strtr( $isbn, array(
1226 $titleObj = SpecialPage
::getTitleFor( 'Booksources', $num );
1228 htmlspecialchars( $titleObj->getLocalUrl() ) .
1229 "\" class=\"internal mw-magiclink-isbn\">ISBN $isbn</a>";
1236 * Make a free external link, given a user-supplied URL
1238 * @param $url string
1240 * @return string HTML
1243 function makeFreeExternalLink( $url ) {
1244 wfProfileIn( __METHOD__
);
1248 # The characters '<' and '>' (which were escaped by
1249 # removeHTMLtags()) should not be included in
1250 # URLs, per RFC 2396.
1252 if ( preg_match( '/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE
) ) {
1253 $trail = substr( $url, $m2[0][1] ) . $trail;
1254 $url = substr( $url, 0, $m2[0][1] );
1257 # Move trailing punctuation to $trail
1259 # If there is no left bracket, then consider right brackets fair game too
1260 if ( strpos( $url, '(' ) === false ) {
1264 $numSepChars = strspn( strrev( $url ), $sep );
1265 if ( $numSepChars ) {
1266 $trail = substr( $url, -$numSepChars ) . $trail;
1267 $url = substr( $url, 0, -$numSepChars );
1270 $url = Sanitizer
::cleanUrl( $url );
1272 # Is this an external image?
1273 $text = $this->maybeMakeExternalImage( $url );
1274 if ( $text === false ) {
1275 # Not an image, make a link
1276 $text = Linker
::makeExternalLink( $url,
1277 $this->getConverterLanguage()->markNoConversion($url), true, 'free',
1278 $this->getExternalLinkAttribs( $url ) );
1279 # Register it in the output object...
1280 # Replace unnecessary URL escape codes with their equivalent characters
1281 $pasteurized = self
::replaceUnusualEscapes( $url );
1282 $this->mOutput
->addExternalLink( $pasteurized );
1284 wfProfileOut( __METHOD__
);
1285 return $text . $trail;
1290 * Parse headers and return html
1294 * @param $text string
1298 function doHeadings( $text ) {
1299 wfProfileIn( __METHOD__
);
1300 for ( $i = 6; $i >= 1; --$i ) {
1301 $h = str_repeat( '=', $i );
1302 $text = preg_replace( "/^$h(.+)$h\\s*$/m",
1303 "<h$i>\\1</h$i>", $text );
1305 wfProfileOut( __METHOD__
);
1310 * Replace single quotes with HTML markup
1313 * @param $text string
1315 * @return string the altered text
1317 function doAllQuotes( $text ) {
1318 wfProfileIn( __METHOD__
);
1320 $lines = StringUtils
::explode( "\n", $text );
1321 foreach ( $lines as $line ) {
1322 $outtext .= $this->doQuotes( $line ) . "\n";
1324 $outtext = substr( $outtext, 0,-1 );
1325 wfProfileOut( __METHOD__
);
1330 * Helper function for doAllQuotes()
1332 * @param $text string
1336 public function doQuotes( $text ) {
1337 $arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
1338 if ( count( $arr ) == 1 ) {
1341 # First, do some preliminary work. This may shift some apostrophes from
1342 # being mark-up to being text. It also counts the number of occurrences
1343 # of bold and italics mark-ups.
1346 for ( $i = 0; $i < count( $arr ); $i++
) {
1347 if ( ( $i %
2 ) == 1 ) {
1348 # If there are ever four apostrophes, assume the first is supposed to
1349 # be text, and the remaining three constitute mark-up for bold text.
1350 if ( strlen( $arr[$i] ) == 4 ) {
1353 } elseif ( strlen( $arr[$i] ) > 5 ) {
1354 # If there are more than 5 apostrophes in a row, assume they're all
1355 # text except for the last 5.
1356 $arr[$i-1] .= str_repeat( "'", strlen( $arr[$i] ) - 5 );
1359 # Count the number of occurrences of bold and italics mark-ups.
1360 # We are not counting sequences of five apostrophes.
1361 if ( strlen( $arr[$i] ) == 2 ) {
1363 } elseif ( strlen( $arr[$i] ) == 3 ) {
1365 } elseif ( strlen( $arr[$i] ) == 5 ) {
1372 # If there is an odd number of both bold and italics, it is likely
1373 # that one of the bold ones was meant to be an apostrophe followed
1374 # by italics. Which one we cannot know for certain, but it is more
1375 # likely to be one that has a single-letter word before it.
1376 if ( ( $numbold %
2 == 1 ) && ( $numitalics %
2 == 1 ) ) {
1378 $firstsingleletterword = -1;
1379 $firstmultiletterword = -1;
1381 foreach ( $arr as $r ) {
1382 if ( ( $i %
2 == 1 ) and ( strlen( $r ) == 3 ) ) {
1383 $x1 = substr( $arr[$i-1], -1 );
1384 $x2 = substr( $arr[$i-1], -2, 1 );
1385 if ( $x1 === ' ' ) {
1386 if ( $firstspace == -1 ) {
1389 } elseif ( $x2 === ' ') {
1390 if ( $firstsingleletterword == -1 ) {
1391 $firstsingleletterword = $i;
1394 if ( $firstmultiletterword == -1 ) {
1395 $firstmultiletterword = $i;
1402 # If there is a single-letter word, use it!
1403 if ( $firstsingleletterword > -1 ) {
1404 $arr[$firstsingleletterword] = "''";
1405 $arr[$firstsingleletterword-1] .= "'";
1406 } elseif ( $firstmultiletterword > -1 ) {
1407 # If not, but there's a multi-letter word, use that one.
1408 $arr[$firstmultiletterword] = "''";
1409 $arr[$firstmultiletterword-1] .= "'";
1410 } elseif ( $firstspace > -1 ) {
1411 # ... otherwise use the first one that has neither.
1412 # (notice that it is possible for all three to be -1 if, for example,
1413 # there is only one pentuple-apostrophe in the line)
1414 $arr[$firstspace] = "''";
1415 $arr[$firstspace-1] .= "'";
1419 # Now let's actually convert our apostrophic mush to HTML!
1424 foreach ( $arr as $r ) {
1425 if ( ( $i %
2 ) == 0 ) {
1426 if ( $state === 'both' ) {
1432 if ( strlen( $r ) == 2 ) {
1433 if ( $state === 'i' ) {
1434 $output .= '</i>'; $state = '';
1435 } elseif ( $state === 'bi' ) {
1436 $output .= '</i>'; $state = 'b';
1437 } elseif ( $state === 'ib' ) {
1438 $output .= '</b></i><b>'; $state = 'b';
1439 } elseif ( $state === 'both' ) {
1440 $output .= '<b><i>'.$buffer.'</i>'; $state = 'b';
1441 } else { # $state can be 'b' or ''
1442 $output .= '<i>'; $state .= 'i';
1444 } elseif ( strlen( $r ) == 3 ) {
1445 if ( $state === 'b' ) {
1446 $output .= '</b>'; $state = '';
1447 } elseif ( $state === 'bi' ) {
1448 $output .= '</i></b><i>'; $state = 'i';
1449 } elseif ( $state === 'ib' ) {
1450 $output .= '</b>'; $state = 'i';
1451 } elseif ( $state === 'both' ) {
1452 $output .= '<i><b>'.$buffer.'</b>'; $state = 'i';
1453 } else { # $state can be 'i' or ''
1454 $output .= '<b>'; $state .= 'b';
1456 } elseif ( strlen( $r ) == 5 ) {
1457 if ( $state === 'b' ) {
1458 $output .= '</b><i>'; $state = 'i';
1459 } elseif ( $state === 'i' ) {
1460 $output .= '</i><b>'; $state = 'b';
1461 } elseif ( $state === 'bi' ) {
1462 $output .= '</i></b>'; $state = '';
1463 } elseif ( $state === 'ib' ) {
1464 $output .= '</b></i>'; $state = '';
1465 } elseif ( $state === 'both' ) {
1466 $output .= '<i><b>'.$buffer.'</b></i>'; $state = '';
1467 } else { # ($state == '')
1468 $buffer = ''; $state = 'both';
1474 # Now close all remaining tags. Notice that the order is important.
1475 if ( $state === 'b' ||
$state === 'ib' ) {
1478 if ( $state === 'i' ||
$state === 'bi' ||
$state === 'ib' ) {
1481 if ( $state === 'bi' ) {
1484 # There might be lonely ''''', so make sure we have a buffer
1485 if ( $state === 'both' && $buffer ) {
1486 $output .= '<b><i>'.$buffer.'</i></b>';
1493 * Replace external links (REL)
1495 * Note: this is all very hackish and the order of execution matters a lot.
1496 * Make sure to run maintenance/parserTests.php if you change this code.
1500 * @param $text string
1504 function replaceExternalLinks( $text ) {
1505 wfProfileIn( __METHOD__
);
1507 $bits = preg_split( $this->mExtLinkBracketedRegex
, $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
1508 $s = array_shift( $bits );
1511 while ( $i<count( $bits ) ) {
1513 $protocol = $bits[$i++
];
1514 $text = $bits[$i++
];
1515 $trail = $bits[$i++
];
1517 # The characters '<' and '>' (which were escaped by
1518 # removeHTMLtags()) should not be included in
1519 # URLs, per RFC 2396.
1521 if ( preg_match( '/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE
) ) {
1522 $text = substr( $url, $m2[0][1] ) . ' ' . $text;
1523 $url = substr( $url, 0, $m2[0][1] );
1526 # If the link text is an image URL, replace it with an <img> tag
1527 # This happened by accident in the original parser, but some people used it extensively
1528 $img = $this->maybeMakeExternalImage( $text );
1529 if ( $img !== false ) {
1535 # Set linktype for CSS - if URL==text, link is essentially free
1536 $linktype = ( $text === $url ) ?
'free' : 'text';
1538 # No link text, e.g. [http://domain.tld/some.link]
1539 if ( $text == '' ) {
1541 $langObj = $this->getTargetLanguage();
1542 $text = '[' . $langObj->formatNum( ++
$this->mAutonumber
) . ']';
1543 $linktype = 'autonumber';
1545 # Have link text, e.g. [http://domain.tld/some.link text]s
1547 list( $dtrail, $trail ) = Linker
::splitTrail( $trail );
1550 $text = $this->getConverterLanguage()->markNoConversion( $text );
1552 $url = Sanitizer
::cleanUrl( $url );
1554 # Use the encoded URL
1555 # This means that users can paste URLs directly into the text
1556 # Funny characters like ö aren't valid in URLs anyway
1557 # This was changed in August 2004
1558 $s .= Linker
::makeExternalLink( $url, $text, false, $linktype,
1559 $this->getExternalLinkAttribs( $url ) ) . $dtrail . $trail;
1561 # Register link in the output object.
1562 # Replace unnecessary URL escape codes with the referenced character
1563 # This prevents spammers from hiding links from the filters
1564 $pasteurized = self
::replaceUnusualEscapes( $url );
1565 $this->mOutput
->addExternalLink( $pasteurized );
1568 wfProfileOut( __METHOD__
);
1573 * Get an associative array of additional HTML attributes appropriate for a
1574 * particular external link. This currently may include rel => nofollow
1575 * (depending on configuration, namespace, and the URL's domain) and/or a
1576 * target attribute (depending on configuration).
1578 * @param $url String|bool optional URL, to extract the domain from for rel =>
1579 * nofollow if appropriate
1580 * @return Array associative array of HTML attributes
1582 function getExternalLinkAttribs( $url = false ) {
1584 global $wgNoFollowLinks, $wgNoFollowNsExceptions, $wgNoFollowDomainExceptions;
1585 $ns = $this->mTitle
->getNamespace();
1586 if ( $wgNoFollowLinks && !in_array( $ns, $wgNoFollowNsExceptions ) &&
1587 !wfMatchesDomainList( $url, $wgNoFollowDomainExceptions ) )
1589 $attribs['rel'] = 'nofollow';
1591 if ( $this->mOptions
->getExternalLinkTarget() ) {
1592 $attribs['target'] = $this->mOptions
->getExternalLinkTarget();
1598 * Replace unusual URL escape codes with their equivalent characters
1600 * @param $url String
1603 * @todo This can merge genuinely required bits in the path or query string,
1604 * breaking legit URLs. A proper fix would treat the various parts of
1605 * the URL differently; as a workaround, just use the output for
1606 * statistical records, not for actual linking/output.
1608 static function replaceUnusualEscapes( $url ) {
1609 return preg_replace_callback( '/%[0-9A-Fa-f]{2}/',
1610 array( __CLASS__
, 'replaceUnusualEscapesCallback' ), $url );
1614 * Callback function used in replaceUnusualEscapes().
1615 * Replaces unusual URL escape codes with their equivalent character
1617 * @param $matches array
1621 private static function replaceUnusualEscapesCallback( $matches ) {
1622 $char = urldecode( $matches[0] );
1623 $ord = ord( $char );
1624 # Is it an unsafe or HTTP reserved character according to RFC 1738?
1625 if ( $ord > 32 && $ord < 127 && strpos( '<>"#{}|\^~[]`;/?', $char ) === false ) {
1626 # No, shouldn't be escaped
1629 # Yes, leave it escaped
1635 * make an image if it's allowed, either through the global
1636 * option, through the exception, or through the on-wiki whitelist
1639 * $param $url string
1643 function maybeMakeExternalImage( $url ) {
1644 $imagesfrom = $this->mOptions
->getAllowExternalImagesFrom();
1645 $imagesexception = !empty( $imagesfrom );
1647 # $imagesfrom could be either a single string or an array of strings, parse out the latter
1648 if ( $imagesexception && is_array( $imagesfrom ) ) {
1649 $imagematch = false;
1650 foreach ( $imagesfrom as $match ) {
1651 if ( strpos( $url, $match ) === 0 ) {
1656 } elseif ( $imagesexception ) {
1657 $imagematch = ( strpos( $url, $imagesfrom ) === 0 );
1659 $imagematch = false;
1661 if ( $this->mOptions
->getAllowExternalImages()
1662 ||
( $imagesexception && $imagematch ) ) {
1663 if ( preg_match( self
::EXT_IMAGE_REGEX
, $url ) ) {
1665 $text = Linker
::makeExternalImage( $url );
1668 if ( !$text && $this->mOptions
->getEnableImageWhitelist()
1669 && preg_match( self
::EXT_IMAGE_REGEX
, $url ) ) {
1670 $whitelist = explode( "\n", wfMsgForContent( 'external_image_whitelist' ) );
1671 foreach ( $whitelist as $entry ) {
1672 # Sanitize the regex fragment, make it case-insensitive, ignore blank entries/comments
1673 if ( strpos( $entry, '#' ) === 0 ||
$entry === '' ) {
1676 if ( preg_match( '/' . str_replace( '/', '\\/', $entry ) . '/i', $url ) ) {
1677 # Image matches a whitelist entry
1678 $text = Linker
::makeExternalImage( $url );
1687 * Process [[ ]] wikilinks
1691 * @return String: processed text
1695 function replaceInternalLinks( $s ) {
1696 $this->mLinkHolders
->merge( $this->replaceInternalLinks2( $s ) );
1701 * Process [[ ]] wikilinks (RIL)
1702 * @return LinkHolderArray
1706 function replaceInternalLinks2( &$s ) {
1707 wfProfileIn( __METHOD__
);
1709 wfProfileIn( __METHOD__
.'-setup' );
1710 static $tc = FALSE, $e1, $e1_img;
1711 # the % is needed to support urlencoded titles as well
1713 $tc = Title
::legalChars() . '#%';
1714 # Match a link having the form [[namespace:link|alternate]]trail
1715 $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD";
1716 # Match cases where there is no "]]", which might still be images
1717 $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD";
1720 $holders = new LinkHolderArray( $this );
1722 # split the entire text string on occurrences of [[
1723 $a = StringUtils
::explode( '[[', ' ' . $s );
1724 # get the first element (all text up to first [[), and remove the space we added
1727 $line = $a->current(); # Workaround for broken ArrayIterator::next() that returns "void"
1728 $s = substr( $s, 1 );
1730 $useLinkPrefixExtension = $this->getTargetLanguage()->linkPrefixExtension();
1732 if ( $useLinkPrefixExtension ) {
1733 # Match the end of a line for a word that's not followed by whitespace,
1734 # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
1735 $e2 = wfMsgForContent( 'linkprefix' );
1738 if ( is_null( $this->mTitle
) ) {
1739 wfProfileOut( __METHOD__
.'-setup' );
1740 wfProfileOut( __METHOD__
);
1741 throw new MWException( __METHOD__
.": \$this->mTitle is null\n" );
1743 $nottalk = !$this->mTitle
->isTalkPage();
1745 if ( $useLinkPrefixExtension ) {
1747 if ( preg_match( $e2, $s, $m ) ) {
1748 $first_prefix = $m[2];
1750 $first_prefix = false;
1756 if ( $this->getConverterLanguage()->hasVariants() ) {
1757 $selflink = $this->getConverterLanguage()->autoConvertToAllVariants(
1758 $this->mTitle
->getPrefixedText() );
1760 $selflink = array( $this->mTitle
->getPrefixedText() );
1762 $useSubpages = $this->areSubpagesAllowed();
1763 wfProfileOut( __METHOD__
.'-setup' );
1765 # Loop for each link
1766 for ( ; $line !== false && $line !== null ; $a->next(), $line = $a->current() ) {
1767 # Check for excessive memory usage
1768 if ( $holders->isBig() ) {
1770 # Do the existence check, replace the link holders and clear the array
1771 $holders->replace( $s );
1775 if ( $useLinkPrefixExtension ) {
1776 wfProfileIn( __METHOD__
.'-prefixhandling' );
1777 if ( preg_match( $e2, $s, $m ) ) {
1784 if ( $first_prefix ) {
1785 $prefix = $first_prefix;
1786 $first_prefix = false;
1788 wfProfileOut( __METHOD__
.'-prefixhandling' );
1791 $might_be_img = false;
1793 wfProfileIn( __METHOD__
."-e1" );
1794 if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
1796 # If we get a ] at the beginning of $m[3] that means we have a link that's something like:
1797 # [[Image:Foo.jpg|[http://example.com desc]]] <- having three ] in a row fucks up,
1798 # the real problem is with the $e1 regex
1801 # Still some problems for cases where the ] is meant to be outside punctuation,
1802 # and no image is in sight. See bug 2095.
1804 if ( $text !== '' &&
1805 substr( $m[3], 0, 1 ) === ']' &&
1806 strpos( $text, '[' ) !== false
1809 $text .= ']'; # so that replaceExternalLinks($text) works later
1810 $m[3] = substr( $m[3], 1 );
1812 # fix up urlencoded title texts
1813 if ( strpos( $m[1], '%' ) !== false ) {
1814 # Should anchors '#' also be rejected?
1815 $m[1] = str_replace( array('<', '>'), array('<', '>'), rawurldecode( $m[1] ) );
1818 } elseif ( preg_match( $e1_img, $line, $m ) ) { # Invalid, but might be an image with a link in its caption
1819 $might_be_img = true;
1821 if ( strpos( $m[1], '%' ) !== false ) {
1822 $m[1] = rawurldecode( $m[1] );
1825 } else { # Invalid form; output directly
1826 $s .= $prefix . '[[' . $line ;
1827 wfProfileOut( __METHOD__
."-e1" );
1830 wfProfileOut( __METHOD__
."-e1" );
1831 wfProfileIn( __METHOD__
."-misc" );
1833 # Don't allow internal links to pages containing
1834 # PROTO: where PROTO is a valid URL protocol; these
1835 # should be external links.
1836 if ( preg_match( '/^(?:' . $this->mUrlProtocols
. ')/', $m[1] ) ) {
1837 $s .= $prefix . '[[' . $line ;
1838 wfProfileOut( __METHOD__
."-misc" );
1842 # Make subpage if necessary
1843 if ( $useSubpages ) {
1844 $link = $this->maybeDoSubpageLink( $m[1], $text );
1849 $noforce = ( substr( $m[1], 0, 1 ) !== ':' );
1851 # Strip off leading ':'
1852 $link = substr( $link, 1 );
1855 wfProfileOut( __METHOD__
."-misc" );
1856 wfProfileIn( __METHOD__
."-title" );
1857 $nt = Title
::newFromText( $this->mStripState
->unstripNoWiki( $link ) );
1858 if ( $nt === null ) {
1859 $s .= $prefix . '[[' . $line;
1860 wfProfileOut( __METHOD__
."-title" );
1864 $ns = $nt->getNamespace();
1865 $iw = $nt->getInterWiki();
1866 wfProfileOut( __METHOD__
."-title" );
1868 if ( $might_be_img ) { # if this is actually an invalid link
1869 wfProfileIn( __METHOD__
."-might_be_img" );
1870 if ( $ns == NS_FILE
&& $noforce ) { # but might be an image
1873 # look at the next 'line' to see if we can close it there
1875 $next_line = $a->current();
1876 if ( $next_line === false ||
$next_line === null ) {
1879 $m = explode( ']]', $next_line, 3 );
1880 if ( count( $m ) == 3 ) {
1881 # the first ]] closes the inner link, the second the image
1883 $text .= "[[{$m[0]}]]{$m[1]}";
1886 } elseif ( count( $m ) == 2 ) {
1887 # if there's exactly one ]] that's fine, we'll keep looking
1888 $text .= "[[{$m[0]}]]{$m[1]}";
1890 # if $next_line is invalid too, we need look no further
1891 $text .= '[[' . $next_line;
1896 # we couldn't find the end of this imageLink, so output it raw
1897 # but don't ignore what might be perfectly normal links in the text we've examined
1898 $holders->merge( $this->replaceInternalLinks2( $text ) );
1899 $s .= "{$prefix}[[$link|$text";
1900 # note: no $trail, because without an end, there *is* no trail
1901 wfProfileOut( __METHOD__
."-might_be_img" );
1904 } else { # it's not an image, so output it raw
1905 $s .= "{$prefix}[[$link|$text";
1906 # note: no $trail, because without an end, there *is* no trail
1907 wfProfileOut( __METHOD__
."-might_be_img" );
1910 wfProfileOut( __METHOD__
."-might_be_img" );
1913 $wasblank = ( $text == '' );
1917 # Bug 4598 madness. Handle the quotes only if they come from the alternate part
1918 # [[Lista d''e paise d''o munno]] -> <a href="...">Lista d''e paise d''o munno</a>
1919 # [[Criticism of Harry Potter|Criticism of ''Harry Potter'']]
1920 # -> <a href="Criticism of Harry Potter">Criticism of <i>Harry Potter</i></a>
1921 $text = $this->doQuotes( $text );
1924 # Link not escaped by : , create the various objects
1927 wfProfileIn( __METHOD__
."-interwiki" );
1928 if ( $iw && $this->mOptions
->getInterwikiMagic() && $nottalk && Language
::fetchLanguageName( $iw, null, 'mw' ) ) {
1929 $this->mOutput
->addLanguageLink( $nt->getFullText() );
1930 $s = rtrim( $s . $prefix );
1931 $s .= trim( $trail, "\n" ) == '' ?
'': $prefix . $trail;
1932 wfProfileOut( __METHOD__
."-interwiki" );
1935 wfProfileOut( __METHOD__
."-interwiki" );
1937 if ( $ns == NS_FILE
) {
1938 wfProfileIn( __METHOD__
."-image" );
1939 if ( !wfIsBadImage( $nt->getDBkey(), $this->mTitle
) ) {
1941 # if no parameters were passed, $text
1942 # becomes something like "File:Foo.png",
1943 # which we don't want to pass on to the
1947 # recursively parse links inside the image caption
1948 # actually, this will parse them in any other parameters, too,
1949 # but it might be hard to fix that, and it doesn't matter ATM
1950 $text = $this->replaceExternalLinks( $text );
1951 $holders->merge( $this->replaceInternalLinks2( $text ) );
1953 # cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them
1954 $s .= $prefix . $this->armorLinks(
1955 $this->makeImage( $nt, $text, $holders ) ) . $trail;
1957 $s .= $prefix . $trail;
1959 wfProfileOut( __METHOD__
."-image" );
1963 if ( $ns == NS_CATEGORY
) {
1964 wfProfileIn( __METHOD__
."-category" );
1965 $s = rtrim( $s . "\n" ); # bug 87
1968 $sortkey = $this->getDefaultSort();
1972 $sortkey = Sanitizer
::decodeCharReferences( $sortkey );
1973 $sortkey = str_replace( "\n", '', $sortkey );
1974 $sortkey = $this->getConverterLanguage()->convertCategoryKey( $sortkey );
1975 $this->mOutput
->addCategory( $nt->getDBkey(), $sortkey );
1978 * Strip the whitespace Category links produce, see bug 87
1979 * @todo We might want to use trim($tmp, "\n") here.
1981 $s .= trim( $prefix . $trail, "\n" ) == '' ?
'' : $prefix . $trail;
1983 wfProfileOut( __METHOD__
."-category" );
1988 # Self-link checking
1989 if ( $nt->getFragment() === '' && $ns != NS_SPECIAL
) {
1990 if ( in_array( $nt->getPrefixedText(), $selflink, true ) ) {
1991 $s .= $prefix . Linker
::makeSelfLinkObj( $nt, $text, '', $trail );
1996 # NS_MEDIA is a pseudo-namespace for linking directly to a file
1997 # @todo FIXME: Should do batch file existence checks, see comment below
1998 if ( $ns == NS_MEDIA
) {
1999 wfProfileIn( __METHOD__
."-media" );
2000 # Give extensions a chance to select the file revision for us
2003 wfRunHooks( 'BeforeParserFetchFileAndTitle',
2004 array( $this, $nt, &$options, &$descQuery ) );
2005 # Fetch and register the file (file title may be different via hooks)
2006 list( $file, $nt ) = $this->fetchFileAndTitle( $nt, $options );
2007 # Cloak with NOPARSE to avoid replacement in replaceExternalLinks
2008 $s .= $prefix . $this->armorLinks(
2009 Linker
::makeMediaLinkFile( $nt, $file, $text ) ) . $trail;
2010 wfProfileOut( __METHOD__
."-media" );
2014 wfProfileIn( __METHOD__
."-always_known" );
2015 # Some titles, such as valid special pages or files in foreign repos, should
2016 # be shown as bluelinks even though they're not included in the page table
2018 # @todo FIXME: isAlwaysKnown() can be expensive for file links; we should really do
2019 # batch file existence checks for NS_FILE and NS_MEDIA
2020 if ( $iw == '' && $nt->isAlwaysKnown() ) {
2021 $this->mOutput
->addLink( $nt );
2022 $s .= $this->makeKnownLinkHolder( $nt, $text, array(), $trail, $prefix );
2024 # Links will be added to the output link list after checking
2025 $s .= $holders->makeHolder( $nt, $text, array(), $trail, $prefix );
2027 wfProfileOut( __METHOD__
."-always_known" );
2029 wfProfileOut( __METHOD__
);
2034 * Render a forced-blue link inline; protect against double expansion of
2035 * URLs if we're in a mode that prepends full URL prefixes to internal links.
2036 * Since this little disaster has to split off the trail text to avoid
2037 * breaking URLs in the following text without breaking trails on the
2038 * wiki links, it's been made into a horrible function.
2041 * @param $text String
2042 * @param $query Array or String
2043 * @param $trail String
2044 * @param $prefix String
2045 * @return String: HTML-wikitext mix oh yuck
2047 function makeKnownLinkHolder( $nt, $text = '', $query = array(), $trail = '', $prefix = '' ) {
2048 list( $inside, $trail ) = Linker
::splitTrail( $trail );
2050 if ( is_string( $query ) ) {
2051 $query = wfCgiToArray( $query );
2053 if ( $text == '' ) {
2054 $text = htmlspecialchars( $nt->getPrefixedText() );
2057 $link = Linker
::linkKnown( $nt, "$prefix$text$inside", array(), $query );
2059 return $this->armorLinks( $link ) . $trail;
2063 * Insert a NOPARSE hacky thing into any inline links in a chunk that's
2064 * going to go through further parsing steps before inline URL expansion.
2066 * Not needed quite as much as it used to be since free links are a bit
2067 * more sensible these days. But bracketed links are still an issue.
2069 * @param $text String: more-or-less HTML
2070 * @return String: less-or-more HTML with NOPARSE bits
2072 function armorLinks( $text ) {
2073 return preg_replace( '/\b(' . $this->mUrlProtocols
. ')/',
2074 "{$this->mUniqPrefix}NOPARSE$1", $text );
2078 * Return true if subpage links should be expanded on this page.
2081 function areSubpagesAllowed() {
2082 # Some namespaces don't allow subpages
2083 return MWNamespace
::hasSubpages( $this->mTitle
->getNamespace() );
2087 * Handle link to subpage if necessary
2089 * @param $target String: the source of the link
2090 * @param &$text String: the link text, modified as necessary
2091 * @return string the full name of the link
2094 function maybeDoSubpageLink( $target, &$text ) {
2095 return Linker
::normalizeSubpageLink( $this->mTitle
, $target, $text );
2099 * Used by doBlockLevels()
2104 function closeParagraph() {
2106 if ( $this->mLastSection
!= '' ) {
2107 $result = '</' . $this->mLastSection
. ">\n";
2109 $this->mInPre
= false;
2110 $this->mLastSection
= '';
2115 * getCommon() returns the length of the longest common substring
2116 * of both arguments, starting at the beginning of both.
2119 * @param $st1 string
2120 * @param $st2 string
2124 function getCommon( $st1, $st2 ) {
2125 $fl = strlen( $st1 );
2126 $shorter = strlen( $st2 );
2127 if ( $fl < $shorter ) {
2131 for ( $i = 0; $i < $shorter; ++
$i ) {
2132 if ( $st1[$i] != $st2[$i] ) {
2140 * These next three functions open, continue, and close the list
2141 * element appropriate to the prefix character passed into them.
2144 * @param $char string
2148 function openList( $char ) {
2149 $result = $this->closeParagraph();
2151 if ( '*' === $char ) {
2152 $result .= '<ul><li>';
2153 } elseif ( '#' === $char ) {
2154 $result .= '<ol><li>';
2155 } elseif ( ':' === $char ) {
2156 $result .= '<dl><dd>';
2157 } elseif ( ';' === $char ) {
2158 $result .= '<dl><dt>';
2159 $this->mDTopen
= true;
2161 $result = '<!-- ERR 1 -->';
2169 * @param $char String
2174 function nextItem( $char ) {
2175 if ( '*' === $char ||
'#' === $char ) {
2177 } elseif ( ':' === $char ||
';' === $char ) {
2179 if ( $this->mDTopen
) {
2182 if ( ';' === $char ) {
2183 $this->mDTopen
= true;
2184 return $close . '<dt>';
2186 $this->mDTopen
= false;
2187 return $close . '<dd>';
2190 return '<!-- ERR 2 -->';
2195 * @param $char String
2200 function closeList( $char ) {
2201 if ( '*' === $char ) {
2202 $text = '</li></ul>';
2203 } elseif ( '#' === $char ) {
2204 $text = '</li></ol>';
2205 } elseif ( ':' === $char ) {
2206 if ( $this->mDTopen
) {
2207 $this->mDTopen
= false;
2208 $text = '</dt></dl>';
2210 $text = '</dd></dl>';
2213 return '<!-- ERR 3 -->';
2220 * Make lists from lines starting with ':', '*', '#', etc. (DBL)
2222 * @param $text String
2223 * @param $linestart Boolean: whether or not this is at the start of a line.
2225 * @return string the lists rendered as HTML
2227 function doBlockLevels( $text, $linestart ) {
2228 wfProfileIn( __METHOD__
);
2230 # Parsing through the text line by line. The main thing
2231 # happening here is handling of block-level elements p, pre,
2232 # and making lists from lines starting with * # : etc.
2234 $textLines = StringUtils
::explode( "\n", $text );
2236 $lastPrefix = $output = '';
2237 $this->mDTopen
= $inBlockElem = false;
2239 $paragraphStack = false;
2241 foreach ( $textLines as $oLine ) {
2243 if ( !$linestart ) {
2253 $lastPrefixLength = strlen( $lastPrefix );
2254 $preCloseMatch = preg_match( '/<\\/pre/i', $oLine );
2255 $preOpenMatch = preg_match( '/<pre/i', $oLine );
2256 # If not in a <pre> element, scan for and figure out what prefixes are there.
2257 if ( !$this->mInPre
) {
2258 # Multiple prefixes may abut each other for nested lists.
2259 $prefixLength = strspn( $oLine, '*#:;' );
2260 $prefix = substr( $oLine, 0, $prefixLength );
2263 # ; and : are both from definition-lists, so they're equivalent
2264 # for the purposes of determining whether or not we need to open/close
2266 $prefix2 = str_replace( ';', ':', $prefix );
2267 $t = substr( $oLine, $prefixLength );
2268 $this->mInPre
= (bool)$preOpenMatch;
2270 # Don't interpret any other prefixes in preformatted text
2272 $prefix = $prefix2 = '';
2277 if ( $prefixLength && $lastPrefix === $prefix2 ) {
2278 # Same as the last item, so no need to deal with nesting or opening stuff
2279 $output .= $this->nextItem( substr( $prefix, -1 ) );
2280 $paragraphStack = false;
2282 if ( substr( $prefix, -1 ) === ';') {
2283 # The one nasty exception: definition lists work like this:
2284 # ; title : definition text
2285 # So we check for : in the remainder text to split up the
2286 # title and definition, without b0rking links.
2288 if ( $this->findColonNoLinks( $t, $term, $t2 ) !== false ) {
2290 $output .= $term . $this->nextItem( ':' );
2293 } elseif ( $prefixLength ||
$lastPrefixLength ) {
2294 # We need to open or close prefixes, or both.
2296 # Either open or close a level...
2297 $commonPrefixLength = $this->getCommon( $prefix, $lastPrefix );
2298 $paragraphStack = false;
2300 # Close all the prefixes which aren't shared.
2301 while ( $commonPrefixLength < $lastPrefixLength ) {
2302 $output .= $this->closeList( $lastPrefix[$lastPrefixLength-1] );
2303 --$lastPrefixLength;
2306 # Continue the current prefix if appropriate.
2307 if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) {
2308 $output .= $this->nextItem( $prefix[$commonPrefixLength-1] );
2311 # Open prefixes where appropriate.
2312 while ( $prefixLength > $commonPrefixLength ) {
2313 $char = substr( $prefix, $commonPrefixLength, 1 );
2314 $output .= $this->openList( $char );
2316 if ( ';' === $char ) {
2317 # @todo FIXME: This is dupe of code above
2318 if ( $this->findColonNoLinks( $t, $term, $t2 ) !== false ) {
2320 $output .= $term . $this->nextItem( ':' );
2323 ++
$commonPrefixLength;
2325 $lastPrefix = $prefix2;
2328 # If we have no prefixes, go to paragraph mode.
2329 if ( 0 == $prefixLength ) {
2330 wfProfileIn( __METHOD__
."-paragraph" );
2331 # No prefix (not in list)--go to paragraph mode
2332 # XXX: use a stack for nestable elements like span, table and div
2333 $openmatch = preg_match('/(?:<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<ol|<li|<\\/tr|<\\/td|<\\/th)/iS', $t );
2334 $closematch = preg_match(
2335 '/(?:<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|'.
2336 '<td|<th|<\\/?div|<hr|<\\/pre|<\\/p|'.$this->mUniqPrefix
.'-pre|<\\/li|<\\/ul|<\\/ol|<\\/?center)/iS', $t );
2337 if ( $openmatch or $closematch ) {
2338 $paragraphStack = false;
2339 # TODO bug 5718: paragraph closed
2340 $output .= $this->closeParagraph();
2341 if ( $preOpenMatch and !$preCloseMatch ) {
2342 $this->mInPre
= true;
2344 $inBlockElem = !$closematch;
2345 } elseif ( !$inBlockElem && !$this->mInPre
) {
2346 if ( ' ' == substr( $t, 0, 1 ) and ( $this->mLastSection
=== 'pre' ||
trim( $t ) != '' ) ) {
2348 if ( $this->mLastSection
!== 'pre' ) {
2349 $paragraphStack = false;
2350 $output .= $this->closeParagraph().'<pre>';
2351 $this->mLastSection
= 'pre';
2353 $t = substr( $t, 1 );
2356 if ( trim( $t ) === '' ) {
2357 if ( $paragraphStack ) {
2358 $output .= $paragraphStack.'<br />';
2359 $paragraphStack = false;
2360 $this->mLastSection
= 'p';
2362 if ( $this->mLastSection
!== 'p' ) {
2363 $output .= $this->closeParagraph();
2364 $this->mLastSection
= '';
2365 $paragraphStack = '<p>';
2367 $paragraphStack = '</p><p>';
2371 if ( $paragraphStack ) {
2372 $output .= $paragraphStack;
2373 $paragraphStack = false;
2374 $this->mLastSection
= 'p';
2375 } elseif ( $this->mLastSection
!== 'p' ) {
2376 $output .= $this->closeParagraph().'<p>';
2377 $this->mLastSection
= 'p';
2382 wfProfileOut( __METHOD__
."-paragraph" );
2384 # somewhere above we forget to get out of pre block (bug 785)
2385 if ( $preCloseMatch && $this->mInPre
) {
2386 $this->mInPre
= false;
2388 if ( $paragraphStack === false ) {
2392 while ( $prefixLength ) {
2393 $output .= $this->closeList( $prefix2[$prefixLength-1] );
2396 if ( $this->mLastSection
!= '' ) {
2397 $output .= '</' . $this->mLastSection
. '>';
2398 $this->mLastSection
= '';
2401 wfProfileOut( __METHOD__
);
2406 * Split up a string on ':', ignoring any occurrences inside tags
2407 * to prevent illegal overlapping.
2409 * @param $str String the string to split
2410 * @param &$before String set to everything before the ':'
2411 * @param &$after String set to everything after the ':'
2412 * @return String the position of the ':', or false if none found
2414 function findColonNoLinks( $str, &$before, &$after ) {
2415 wfProfileIn( __METHOD__
);
2417 $pos = strpos( $str, ':' );
2418 if ( $pos === false ) {
2420 wfProfileOut( __METHOD__
);
2424 $lt = strpos( $str, '<' );
2425 if ( $lt === false ||
$lt > $pos ) {
2426 # Easy; no tag nesting to worry about
2427 $before = substr( $str, 0, $pos );
2428 $after = substr( $str, $pos+
1 );
2429 wfProfileOut( __METHOD__
);
2433 # Ugly state machine to walk through avoiding tags.
2434 $state = self
::COLON_STATE_TEXT
;
2436 $len = strlen( $str );
2437 for( $i = 0; $i < $len; $i++
) {
2441 # (Using the number is a performance hack for common cases)
2442 case 0: # self::COLON_STATE_TEXT:
2445 # Could be either a <start> tag or an </end> tag
2446 $state = self
::COLON_STATE_TAGSTART
;
2449 if ( $stack == 0 ) {
2451 $before = substr( $str, 0, $i );
2452 $after = substr( $str, $i +
1 );
2453 wfProfileOut( __METHOD__
);
2456 # Embedded in a tag; don't break it.
2459 # Skip ahead looking for something interesting
2460 $colon = strpos( $str, ':', $i );
2461 if ( $colon === false ) {
2462 # Nothing else interesting
2463 wfProfileOut( __METHOD__
);
2466 $lt = strpos( $str, '<', $i );
2467 if ( $stack === 0 ) {
2468 if ( $lt === false ||
$colon < $lt ) {
2470 $before = substr( $str, 0, $colon );
2471 $after = substr( $str, $colon +
1 );
2472 wfProfileOut( __METHOD__
);
2476 if ( $lt === false ) {
2477 # Nothing else interesting to find; abort!
2478 # We're nested, but there's no close tags left. Abort!
2481 # Skip ahead to next tag start
2483 $state = self
::COLON_STATE_TAGSTART
;
2486 case 1: # self::COLON_STATE_TAG:
2491 $state = self
::COLON_STATE_TEXT
;
2494 # Slash may be followed by >?
2495 $state = self
::COLON_STATE_TAGSLASH
;
2501 case 2: # self::COLON_STATE_TAGSTART:
2504 $state = self
::COLON_STATE_CLOSETAG
;
2507 $state = self
::COLON_STATE_COMMENT
;
2510 # Illegal early close? This shouldn't happen D:
2511 $state = self
::COLON_STATE_TEXT
;
2514 $state = self
::COLON_STATE_TAG
;
2517 case 3: # self::COLON_STATE_CLOSETAG:
2522 wfDebug( __METHOD__
.": Invalid input; too many close tags\n" );
2523 wfProfileOut( __METHOD__
);
2526 $state = self
::COLON_STATE_TEXT
;
2529 case self
::COLON_STATE_TAGSLASH
:
2531 # Yes, a self-closed tag <blah/>
2532 $state = self
::COLON_STATE_TEXT
;
2534 # Probably we're jumping the gun, and this is an attribute
2535 $state = self
::COLON_STATE_TAG
;
2538 case 5: # self::COLON_STATE_COMMENT:
2540 $state = self
::COLON_STATE_COMMENTDASH
;
2543 case self
::COLON_STATE_COMMENTDASH
:
2545 $state = self
::COLON_STATE_COMMENTDASHDASH
;
2547 $state = self
::COLON_STATE_COMMENT
;
2550 case self
::COLON_STATE_COMMENTDASHDASH
:
2552 $state = self
::COLON_STATE_TEXT
;
2554 $state = self
::COLON_STATE_COMMENT
;
2558 throw new MWException( "State machine error in " . __METHOD__
);
2562 wfDebug( __METHOD__
.": Invalid input; not enough close tags (stack $stack, state $state)\n" );
2563 wfProfileOut( __METHOD__
);
2566 wfProfileOut( __METHOD__
);
2571 * Return value of a magic variable (like PAGENAME)
2575 * @param $index integer
2576 * @param $frame PPFrame
2580 function getVariableValue( $index, $frame = false ) {
2581 global $wgContLang, $wgSitename, $wgServer;
2582 global $wgArticlePath, $wgScriptPath, $wgStylePath;
2584 if ( is_null( $this->mTitle
) ) {
2585 // If no title set, bad things are going to happen
2586 // later. Title should always be set since this
2587 // should only be called in the middle of a parse
2588 // operation (but the unit-tests do funky stuff)
2589 throw new MWException( __METHOD__
. ' Should only be '
2590 . ' called while parsing (no title set)' );
2594 * Some of these require message or data lookups and can be
2595 * expensive to check many times.
2597 if ( wfRunHooks( 'ParserGetVariableValueVarCache', array( &$this, &$this->mVarCache
) ) ) {
2598 if ( isset( $this->mVarCache
[$index] ) ) {
2599 return $this->mVarCache
[$index];
2603 $ts = wfTimestamp( TS_UNIX
, $this->mOptions
->getTimestamp() );
2604 wfRunHooks( 'ParserGetVariableValueTs', array( &$this, &$ts ) );
2607 global $wgLocaltimezone;
2608 if ( isset( $wgLocaltimezone ) ) {
2609 $oldtz = date_default_timezone_get();
2610 date_default_timezone_set( $wgLocaltimezone );
2613 $localTimestamp = date( 'YmdHis', $ts );
2614 $localMonth = date( 'm', $ts );
2615 $localMonth1 = date( 'n', $ts );
2616 $localMonthName = date( 'n', $ts );
2617 $localDay = date( 'j', $ts );
2618 $localDay2 = date( 'd', $ts );
2619 $localDayOfWeek = date( 'w', $ts );
2620 $localWeek = date( 'W', $ts );
2621 $localYear = date( 'Y', $ts );
2622 $localHour = date( 'H', $ts );
2623 if ( isset( $wgLocaltimezone ) ) {
2624 date_default_timezone_set( $oldtz );
2627 $pageLang = $this->getFunctionLang();
2630 case 'currentmonth':
2631 $value = $pageLang->formatNum( gmdate( 'm', $ts ) );
2633 case 'currentmonth1':
2634 $value = $pageLang->formatNum( gmdate( 'n', $ts ) );
2636 case 'currentmonthname':
2637 $value = $pageLang->getMonthName( gmdate( 'n', $ts ) );
2639 case 'currentmonthnamegen':
2640 $value = $pageLang->getMonthNameGen( gmdate( 'n', $ts ) );
2642 case 'currentmonthabbrev':
2643 $value = $pageLang->getMonthAbbreviation( gmdate( 'n', $ts ) );
2646 $value = $pageLang->formatNum( gmdate( 'j', $ts ) );
2649 $value = $pageLang->formatNum( gmdate( 'd', $ts ) );
2652 $value = $pageLang->formatNum( $localMonth );
2655 $value = $pageLang->formatNum( $localMonth1 );
2657 case 'localmonthname':
2658 $value = $pageLang->getMonthName( $localMonthName );
2660 case 'localmonthnamegen':
2661 $value = $pageLang->getMonthNameGen( $localMonthName );
2663 case 'localmonthabbrev':
2664 $value = $pageLang->getMonthAbbreviation( $localMonthName );
2667 $value = $pageLang->formatNum( $localDay );
2670 $value = $pageLang->formatNum( $localDay2 );
2673 $value = wfEscapeWikiText( $this->mTitle
->getText() );
2676 $value = wfEscapeWikiText( $this->mTitle
->getPartialURL() );
2678 case 'fullpagename':
2679 $value = wfEscapeWikiText( $this->mTitle
->getPrefixedText() );
2681 case 'fullpagenamee':
2682 $value = wfEscapeWikiText( $this->mTitle
->getPrefixedURL() );
2685 $value = wfEscapeWikiText( $this->mTitle
->getSubpageText() );
2687 case 'subpagenamee':
2688 $value = wfEscapeWikiText( $this->mTitle
->getSubpageUrlForm() );
2690 case 'basepagename':
2691 $value = wfEscapeWikiText( $this->mTitle
->getBaseText() );
2693 case 'basepagenamee':
2694 $value = wfEscapeWikiText( wfUrlEncode( str_replace( ' ', '_', $this->mTitle
->getBaseText() ) ) );
2696 case 'talkpagename':
2697 if ( $this->mTitle
->canTalk() ) {
2698 $talkPage = $this->mTitle
->getTalkPage();
2699 $value = wfEscapeWikiText( $talkPage->getPrefixedText() );
2704 case 'talkpagenamee':
2705 if ( $this->mTitle
->canTalk() ) {
2706 $talkPage = $this->mTitle
->getTalkPage();
2707 $value = wfEscapeWikiText( $talkPage->getPrefixedUrl() );
2712 case 'subjectpagename':
2713 $subjPage = $this->mTitle
->getSubjectPage();
2714 $value = wfEscapeWikiText( $subjPage->getPrefixedText() );
2716 case 'subjectpagenamee':
2717 $subjPage = $this->mTitle
->getSubjectPage();
2718 $value = wfEscapeWikiText( $subjPage->getPrefixedUrl() );
2721 # Let the edit saving system know we should parse the page
2722 # *after* a revision ID has been assigned.
2723 $this->mOutput
->setFlag( 'vary-revision' );
2724 wfDebug( __METHOD__
. ": {{REVISIONID}} used, setting vary-revision...\n" );
2725 $value = $this->mRevisionId
;
2728 # Let the edit saving system know we should parse the page
2729 # *after* a revision ID has been assigned. This is for null edits.
2730 $this->mOutput
->setFlag( 'vary-revision' );
2731 wfDebug( __METHOD__
. ": {{REVISIONDAY}} used, setting vary-revision...\n" );
2732 $value = intval( substr( $this->getRevisionTimestamp(), 6, 2 ) );
2734 case 'revisionday2':
2735 # Let the edit saving system know we should parse the page
2736 # *after* a revision ID has been assigned. This is for null edits.
2737 $this->mOutput
->setFlag( 'vary-revision' );
2738 wfDebug( __METHOD__
. ": {{REVISIONDAY2}} used, setting vary-revision...\n" );
2739 $value = substr( $this->getRevisionTimestamp(), 6, 2 );
2741 case 'revisionmonth':
2742 # Let the edit saving system know we should parse the page
2743 # *after* a revision ID has been assigned. This is for null edits.
2744 $this->mOutput
->setFlag( 'vary-revision' );
2745 wfDebug( __METHOD__
. ": {{REVISIONMONTH}} used, setting vary-revision...\n" );
2746 $value = substr( $this->getRevisionTimestamp(), 4, 2 );
2748 case 'revisionmonth1':
2749 # Let the edit saving system know we should parse the page
2750 # *after* a revision ID has been assigned. This is for null edits.
2751 $this->mOutput
->setFlag( 'vary-revision' );
2752 wfDebug( __METHOD__
. ": {{REVISIONMONTH1}} used, setting vary-revision...\n" );
2753 $value = intval( substr( $this->getRevisionTimestamp(), 4, 2 ) );
2755 case 'revisionyear':
2756 # Let the edit saving system know we should parse the page
2757 # *after* a revision ID has been assigned. This is for null edits.
2758 $this->mOutput
->setFlag( 'vary-revision' );
2759 wfDebug( __METHOD__
. ": {{REVISIONYEAR}} used, setting vary-revision...\n" );
2760 $value = substr( $this->getRevisionTimestamp(), 0, 4 );
2762 case 'revisiontimestamp':
2763 # Let the edit saving system know we should parse the page
2764 # *after* a revision ID has been assigned. This is for null edits.
2765 $this->mOutput
->setFlag( 'vary-revision' );
2766 wfDebug( __METHOD__
. ": {{REVISIONTIMESTAMP}} used, setting vary-revision...\n" );
2767 $value = $this->getRevisionTimestamp();
2769 case 'revisionuser':
2770 # Let the edit saving system know we should parse the page
2771 # *after* a revision ID has been assigned. This is for null edits.
2772 $this->mOutput
->setFlag( 'vary-revision' );
2773 wfDebug( __METHOD__
. ": {{REVISIONUSER}} used, setting vary-revision...\n" );
2774 $value = $this->getRevisionUser();
2777 $value = str_replace( '_',' ',$wgContLang->getNsText( $this->mTitle
->getNamespace() ) );
2780 $value = wfUrlencode( $wgContLang->getNsText( $this->mTitle
->getNamespace() ) );
2782 case 'namespacenumber':
2783 $value = $this->mTitle
->getNamespace();
2786 $value = $this->mTitle
->canTalk() ?
str_replace( '_',' ',$this->mTitle
->getTalkNsText() ) : '';
2789 $value = $this->mTitle
->canTalk() ?
wfUrlencode( $this->mTitle
->getTalkNsText() ) : '';
2791 case 'subjectspace':
2792 $value = $this->mTitle
->getSubjectNsText();
2794 case 'subjectspacee':
2795 $value = ( wfUrlencode( $this->mTitle
->getSubjectNsText() ) );
2797 case 'currentdayname':
2798 $value = $pageLang->getWeekdayName( gmdate( 'w', $ts ) +
1 );
2801 $value = $pageLang->formatNum( gmdate( 'Y', $ts ), true );
2804 $value = $pageLang->time( wfTimestamp( TS_MW
, $ts ), false, false );
2807 $value = $pageLang->formatNum( gmdate( 'H', $ts ), true );
2810 # @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to
2811 # int to remove the padding
2812 $value = $pageLang->formatNum( (int)gmdate( 'W', $ts ) );
2815 $value = $pageLang->formatNum( gmdate( 'w', $ts ) );
2817 case 'localdayname':
2818 $value = $pageLang->getWeekdayName( $localDayOfWeek +
1 );
2821 $value = $pageLang->formatNum( $localYear, true );
2824 $value = $pageLang->time( $localTimestamp, false, false );
2827 $value = $pageLang->formatNum( $localHour, true );
2830 # @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to
2831 # int to remove the padding
2832 $value = $pageLang->formatNum( (int)$localWeek );
2835 $value = $pageLang->formatNum( $localDayOfWeek );
2837 case 'numberofarticles':
2838 $value = $pageLang->formatNum( SiteStats
::articles() );
2840 case 'numberoffiles':
2841 $value = $pageLang->formatNum( SiteStats
::images() );
2843 case 'numberofusers':
2844 $value = $pageLang->formatNum( SiteStats
::users() );
2846 case 'numberofactiveusers':
2847 $value = $pageLang->formatNum( SiteStats
::activeUsers() );
2849 case 'numberofpages':
2850 $value = $pageLang->formatNum( SiteStats
::pages() );
2852 case 'numberofadmins':
2853 $value = $pageLang->formatNum( SiteStats
::numberingroup( 'sysop' ) );
2855 case 'numberofedits':
2856 $value = $pageLang->formatNum( SiteStats
::edits() );
2858 case 'numberofviews':
2859 $value = $pageLang->formatNum( SiteStats
::views() );
2861 case 'currenttimestamp':
2862 $value = wfTimestamp( TS_MW
, $ts );
2864 case 'localtimestamp':
2865 $value = $localTimestamp;
2867 case 'currentversion':
2868 $value = SpecialVersion
::getVersion();
2871 return $wgArticlePath;
2877 $serverParts = wfParseUrl( $wgServer );
2878 return $serverParts && isset( $serverParts['host'] ) ?
$serverParts['host'] : $wgServer;
2880 return $wgScriptPath;
2882 return $wgStylePath;
2883 case 'directionmark':
2884 return $pageLang->getDirMark();
2885 case 'contentlanguage':
2886 global $wgLanguageCode;
2887 return $wgLanguageCode;
2890 if ( wfRunHooks( 'ParserGetVariableValueSwitch', array( &$this, &$this->mVarCache
, &$index, &$ret, &$frame ) ) ) {
2898 $this->mVarCache
[$index] = $value;
2905 * initialise the magic variables (like CURRENTMONTHNAME) and substitution modifiers
2909 function initialiseVariables() {
2910 wfProfileIn( __METHOD__
);
2911 $variableIDs = MagicWord
::getVariableIDs();
2912 $substIDs = MagicWord
::getSubstIDs();
2914 $this->mVariables
= new MagicWordArray( $variableIDs );
2915 $this->mSubstWords
= new MagicWordArray( $substIDs );
2916 wfProfileOut( __METHOD__
);
2920 * Preprocess some wikitext and return the document tree.
2921 * This is the ghost of replace_variables().
2923 * @param $text String: The text to parse
2924 * @param $flags Integer: bitwise combination of:
2925 * self::PTD_FOR_INCLUSION Handle <noinclude>/<includeonly> as if the text is being
2926 * included. Default is to assume a direct page view.
2928 * The generated DOM tree must depend only on the input text and the flags.
2929 * The DOM tree must be the same in OT_HTML and OT_WIKI mode, to avoid a regression of bug 4899.
2931 * Any flag added to the $flags parameter here, or any other parameter liable to cause a
2932 * change in the DOM tree for a given text, must be passed through the section identifier
2933 * in the section edit link and thus back to extractSections().
2935 * The output of this function is currently only cached in process memory, but a persistent
2936 * cache may be implemented at a later date which takes further advantage of these strict
2937 * dependency requirements.
2943 function preprocessToDom( $text, $flags = 0 ) {
2944 $dom = $this->getPreprocessor()->preprocessToObj( $text, $flags );
2949 * Return a three-element array: leading whitespace, string contents, trailing whitespace
2955 public static function splitWhitespace( $s ) {
2956 $ltrimmed = ltrim( $s );
2957 $w1 = substr( $s, 0, strlen( $s ) - strlen( $ltrimmed ) );
2958 $trimmed = rtrim( $ltrimmed );
2959 $diff = strlen( $ltrimmed ) - strlen( $trimmed );
2961 $w2 = substr( $ltrimmed, -$diff );
2965 return array( $w1, $trimmed, $w2 );
2969 * Replace magic variables, templates, and template arguments
2970 * with the appropriate text. Templates are substituted recursively,
2971 * taking care to avoid infinite loops.
2973 * Note that the substitution depends on value of $mOutputType:
2974 * self::OT_WIKI: only {{subst:}} templates
2975 * self::OT_PREPROCESS: templates but not extension tags
2976 * self::OT_HTML: all templates and extension tags
2978 * @param $text String the text to transform
2979 * @param $frame PPFrame Object describing the arguments passed to the template.
2980 * Arguments may also be provided as an associative array, as was the usual case before MW1.12.
2981 * Providing arguments this way may be useful for extensions wishing to perform variable replacement explicitly.
2982 * @param $argsOnly Boolean only do argument (triple-brace) expansion, not double-brace expansion
2987 function replaceVariables( $text, $frame = false, $argsOnly = false ) {
2988 # Is there any text? Also, Prevent too big inclusions!
2989 if ( strlen( $text ) < 1 ||
strlen( $text ) > $this->mOptions
->getMaxIncludeSize() ) {
2992 wfProfileIn( __METHOD__
);
2994 if ( $frame === false ) {
2995 $frame = $this->getPreprocessor()->newFrame();
2996 } elseif ( !( $frame instanceof PPFrame
) ) {
2997 wfDebug( __METHOD__
." called using plain parameters instead of a PPFrame instance. Creating custom frame.\n" );
2998 $frame = $this->getPreprocessor()->newCustomFrame( $frame );
3001 $dom = $this->preprocessToDom( $text );
3002 $flags = $argsOnly ? PPFrame
::NO_TEMPLATES
: 0;
3003 $text = $frame->expand( $dom, $flags );
3005 wfProfileOut( __METHOD__
);
3010 * Clean up argument array - refactored in 1.9 so parserfunctions can use it, too.
3012 * @param $args array
3016 static function createAssocArgs( $args ) {
3017 $assocArgs = array();
3019 foreach ( $args as $arg ) {
3020 $eqpos = strpos( $arg, '=' );
3021 if ( $eqpos === false ) {
3022 $assocArgs[$index++
] = $arg;
3024 $name = trim( substr( $arg, 0, $eqpos ) );
3025 $value = trim( substr( $arg, $eqpos+
1 ) );
3026 if ( $value === false ) {
3029 if ( $name !== false ) {
3030 $assocArgs[$name] = $value;
3039 * Warn the user when a parser limitation is reached
3040 * Will warn at most once the user per limitation type
3042 * @param $limitationType String: should be one of:
3043 * 'expensive-parserfunction' (corresponding messages:
3044 * 'expensive-parserfunction-warning',
3045 * 'expensive-parserfunction-category')
3046 * 'post-expand-template-argument' (corresponding messages:
3047 * 'post-expand-template-argument-warning',
3048 * 'post-expand-template-argument-category')
3049 * 'post-expand-template-inclusion' (corresponding messages:
3050 * 'post-expand-template-inclusion-warning',
3051 * 'post-expand-template-inclusion-category')
3052 * @param $current int|null Current value
3053 * @param $max int|null Maximum allowed, when an explicit limit has been
3054 * exceeded, provide the values (optional)
3056 function limitationWarn( $limitationType, $current = null, $max = null) {
3057 # does no harm if $current and $max are present but are unnecessary for the message
3058 $warning = wfMsgExt( "$limitationType-warning", array( 'parsemag', 'escape' ), $current, $max );
3059 $this->mOutput
->addWarning( $warning );
3060 $this->addTrackingCategory( "$limitationType-category" );
3064 * Return the text of a template, after recursively
3065 * replacing any variables or templates within the template.
3067 * @param $piece Array: the parts of the template
3068 * $piece['title']: the title, i.e. the part before the |
3069 * $piece['parts']: the parameter array
3070 * $piece['lineStart']: whether the brace was at the start of a line
3071 * @param $frame PPFrame The current frame, contains template arguments
3072 * @return String: the text of the template
3075 function braceSubstitution( $piece, $frame ) {
3076 global $wgNonincludableNamespaces, $wgContLang;
3077 wfProfileIn( __METHOD__
);
3078 wfProfileIn( __METHOD__
.'-setup' );
3081 $found = false; # $text has been filled
3082 $nowiki = false; # wiki markup in $text should be escaped
3083 $isHTML = false; # $text is HTML, armour it against wikitext transformation
3084 $forceRawInterwiki = false; # Force interwiki transclusion to be done in raw mode not rendered
3085 $isChildObj = false; # $text is a DOM node needing expansion in a child frame
3086 $isLocalObj = false; # $text is a DOM node needing expansion in the current frame
3088 # Title object, where $text came from
3091 # $part1 is the bit before the first |, and must contain only title characters.
3092 # Various prefixes will be stripped from it later.
3093 $titleWithSpaces = $frame->expand( $piece['title'] );
3094 $part1 = trim( $titleWithSpaces );
3097 # Original title text preserved for various purposes
3098 $originalTitle = $part1;
3100 # $args is a list of argument nodes, starting from index 0, not including $part1
3101 # @todo FIXME: If piece['parts'] is null then the call to getLength() below won't work b/c this $args isn't an object
3102 $args = ( null == $piece['parts'] ) ?
array() : $piece['parts'];
3103 wfProfileOut( __METHOD__
.'-setup' );
3105 $titleProfileIn = null; // profile templates
3108 wfProfileIn( __METHOD__
.'-modifiers' );
3111 $substMatch = $this->mSubstWords
->matchStartAndRemove( $part1 );
3113 # Possibilities for substMatch: "subst", "safesubst" or FALSE
3114 # Decide whether to expand template or keep wikitext as-is.
3115 if ( $this->ot
['wiki'] ) {
3116 if ( $substMatch === false ) {
3117 $literal = true; # literal when in PST with no prefix
3119 $literal = false; # expand when in PST with subst: or safesubst:
3122 if ( $substMatch == 'subst' ) {
3123 $literal = true; # literal when not in PST with plain subst:
3125 $literal = false; # expand when not in PST with safesubst: or no prefix
3129 $text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
3136 if ( !$found && $args->getLength() == 0 ) {
3137 $id = $this->mVariables
->matchStartToEnd( $part1 );
3138 if ( $id !== false ) {
3139 $text = $this->getVariableValue( $id, $frame );
3140 if ( MagicWord
::getCacheTTL( $id ) > -1 ) {
3141 $this->mOutput
->updateCacheExpiry( MagicWord
::getCacheTTL( $id ) );
3147 # MSG, MSGNW and RAW
3150 $mwMsgnw = MagicWord
::get( 'msgnw' );
3151 if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
3154 # Remove obsolete MSG:
3155 $mwMsg = MagicWord
::get( 'msg' );
3156 $mwMsg->matchStartAndRemove( $part1 );
3160 $mwRaw = MagicWord
::get( 'raw' );
3161 if ( $mwRaw->matchStartAndRemove( $part1 ) ) {
3162 $forceRawInterwiki = true;
3165 wfProfileOut( __METHOD__
.'-modifiers' );
3169 wfProfileIn( __METHOD__
. '-pfunc' );
3171 $colonPos = strpos( $part1, ':' );
3172 if ( $colonPos !== false ) {
3173 # Case sensitive functions
3174 $function = substr( $part1, 0, $colonPos );
3175 if ( isset( $this->mFunctionSynonyms
[1][$function] ) ) {
3176 $function = $this->mFunctionSynonyms
[1][$function];
3178 # Case insensitive functions
3179 $function = $wgContLang->lc( $function );
3180 if ( isset( $this->mFunctionSynonyms
[0][$function] ) ) {
3181 $function = $this->mFunctionSynonyms
[0][$function];
3187 wfProfileIn( __METHOD__
. '-pfunc-' . $function );
3188 list( $callback, $flags ) = $this->mFunctionHooks
[$function];
3189 $initialArgs = array( &$this );
3190 $funcArgs = array( trim( substr( $part1, $colonPos +
1 ) ) );
3191 if ( $flags & SFH_OBJECT_ARGS
) {
3192 # Add a frame parameter, and pass the arguments as an array
3193 $allArgs = $initialArgs;
3194 $allArgs[] = $frame;
3195 for ( $i = 0; $i < $args->getLength(); $i++
) {
3196 $funcArgs[] = $args->item( $i );
3198 $allArgs[] = $funcArgs;
3200 # Convert arguments to plain text
3201 for ( $i = 0; $i < $args->getLength(); $i++
) {
3202 $funcArgs[] = trim( $frame->expand( $args->item( $i ) ) );
3204 $allArgs = array_merge( $initialArgs, $funcArgs );
3207 # Workaround for PHP bug 35229 and similar
3208 if ( !is_callable( $callback ) ) {
3209 wfProfileOut( __METHOD__
. '-pfunc-' . $function );
3210 wfProfileOut( __METHOD__
. '-pfunc' );
3211 wfProfileOut( __METHOD__
);
3212 throw new MWException( "Tag hook for $function is not callable\n" );
3214 $result = call_user_func_array( $callback, $allArgs );
3217 $preprocessFlags = 0;
3219 if ( is_array( $result ) ) {
3220 if ( isset( $result[0] ) ) {
3222 unset( $result[0] );
3225 # Extract flags into the local scope
3226 # This allows callers to set flags such as nowiki, found, etc.
3232 $text = $this->preprocessToDom( $text, $preprocessFlags );
3235 wfProfileOut( __METHOD__
. '-pfunc-' . $function );
3238 wfProfileOut( __METHOD__
. '-pfunc' );
3241 # Finish mangling title and then check for loops.
3242 # Set $title to a Title object and $titleText to the PDBK
3245 # Split the title into page and subpage
3247 $part1 = $this->maybeDoSubpageLink( $part1, $subpage );
3248 if ( $subpage !== '' ) {
3249 $ns = $this->mTitle
->getNamespace();
3251 $title = Title
::newFromText( $part1, $ns );
3253 $titleText = $title->getPrefixedText();
3254 # Check for language variants if the template is not found
3255 if ( $this->getConverterLanguage()->hasVariants() && $title->getArticleID() == 0 ) {
3256 $this->getConverterLanguage()->findVariantLink( $part1, $title, true );
3258 # Do recursion depth check
3259 $limit = $this->mOptions
->getMaxTemplateDepth();
3260 if ( $frame->depth
>= $limit ) {
3262 $text = '<span class="error">'
3263 . wfMsgForContent( 'parser-template-recursion-depth-warning', $limit )
3269 # Load from database
3270 if ( !$found && $title ) {
3271 $titleProfileIn = __METHOD__
. "-title-" . $title->getDBKey();
3272 wfProfileIn( $titleProfileIn ); // template in
3273 wfProfileIn( __METHOD__
. '-loadtpl' );
3274 if ( !$title->isExternal() ) {
3275 if ( $title->isSpecialPage()
3276 && $this->mOptions
->getAllowSpecialInclusion()
3277 && $this->ot
['html'] )
3279 // Pass the template arguments as URL parameters.
3280 // "uselang" will have no effect since the Language object
3281 // is forced to the one defined in ParserOptions.
3282 $pageArgs = array();
3283 for ( $i = 0; $i < $args->getLength(); $i++
) {
3284 $bits = $args->item( $i )->splitArg();
3285 if ( strval( $bits['index'] ) === '' ) {
3286 $name = trim( $frame->expand( $bits['name'], PPFrame
::STRIP_COMMENTS
) );
3287 $value = trim( $frame->expand( $bits['value'] ) );
3288 $pageArgs[$name] = $value;
3292 // Create a new context to execute the special page
3293 $context = new RequestContext
;
3294 $context->setTitle( $title );
3295 $context->setRequest( new FauxRequest( $pageArgs ) );
3296 $context->setUser( $this->getUser() );
3297 $context->setLanguage( $this->mOptions
->getUserLangObj() );
3298 $ret = SpecialPageFactory
::capturePath( $title, $context );
3300 $text = $context->getOutput()->getHTML();
3301 $this->mOutput
->addOutputPageMetadata( $context->getOutput() );
3304 $this->disableCache();
3306 } elseif ( $wgNonincludableNamespaces && in_array( $title->getNamespace(), $wgNonincludableNamespaces ) ) {
3307 $found = false; # access denied
3308 wfDebug( __METHOD__
.": template inclusion denied for " . $title->getPrefixedDBkey() );
3310 list( $text, $title ) = $this->getTemplateDom( $title );
3311 if ( $text !== false ) {
3317 # If the title is valid but undisplayable, make a link to it
3318 if ( !$found && ( $this->ot
['html'] ||
$this->ot
['pre'] ) ) {
3319 $text = "[[:$titleText]]";
3322 } elseif ( $title->isTrans() ) {
3323 # Interwiki transclusion
3324 if ( $this->ot
['html'] && !$forceRawInterwiki ) {
3325 $text = $this->interwikiTransclude( $title, 'render' );
3328 $text = $this->interwikiTransclude( $title, 'raw' );
3329 # Preprocess it like a template
3330 $text = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
3336 # Do infinite loop check
3337 # This has to be done after redirect resolution to avoid infinite loops via redirects
3338 if ( !$frame->loopCheck( $title ) ) {
3340 $text = '<span class="error">' . wfMsgForContent( 'parser-template-loop-warning', $titleText ) . '</span>';
3341 wfDebug( __METHOD__
.": template loop broken at '$titleText'\n" );
3343 wfProfileOut( __METHOD__
. '-loadtpl' );
3346 # If we haven't found text to substitute by now, we're done
3347 # Recover the source wikitext and return it
3349 $text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
3350 if ( $titleProfileIn ) {
3351 wfProfileOut( $titleProfileIn ); // template out
3353 wfProfileOut( __METHOD__
);
3354 return array( 'object' => $text );
3357 # Expand DOM-style return values in a child frame
3358 if ( $isChildObj ) {
3359 # Clean up argument array
3360 $newFrame = $frame->newChild( $args, $title );
3363 $text = $newFrame->expand( $text, PPFrame
::RECOVER_ORIG
);
3364 } elseif ( $titleText !== false && $newFrame->isEmpty() ) {
3365 # Expansion is eligible for the empty-frame cache
3366 if ( isset( $this->mTplExpandCache
[$titleText] ) ) {
3367 $text = $this->mTplExpandCache
[$titleText];
3369 $text = $newFrame->expand( $text );
3370 $this->mTplExpandCache
[$titleText] = $text;
3373 # Uncached expansion
3374 $text = $newFrame->expand( $text );
3377 if ( $isLocalObj && $nowiki ) {
3378 $text = $frame->expand( $text, PPFrame
::RECOVER_ORIG
);
3379 $isLocalObj = false;
3382 if ( $titleProfileIn ) {
3383 wfProfileOut( $titleProfileIn ); // template out
3386 # Replace raw HTML by a placeholder
3387 # Add a blank line preceding, to prevent it from mucking up
3388 # immediately preceding headings
3390 $text = "\n\n" . $this->insertStripItem( $text );
3391 } elseif ( $nowiki && ( $this->ot
['html'] ||
$this->ot
['pre'] ) ) {
3392 # Escape nowiki-style return values
3393 $text = wfEscapeWikiText( $text );
3394 } elseif ( is_string( $text )
3395 && !$piece['lineStart']
3396 && preg_match( '/^(?:{\\||:|;|#|\*)/', $text ) )
3398 # Bug 529: if the template begins with a table or block-level
3399 # element, it should be treated as beginning a new line.
3400 # This behaviour is somewhat controversial.
3401 $text = "\n" . $text;
3404 if ( is_string( $text ) && !$this->incrementIncludeSize( 'post-expand', strlen( $text ) ) ) {
3405 # Error, oversize inclusion
3406 if ( $titleText !== false ) {
3407 # Make a working, properly escaped link if possible (bug 23588)
3408 $text = "[[:$titleText]]";
3410 # This will probably not be a working link, but at least it may
3411 # provide some hint of where the problem is
3412 preg_replace( '/^:/', '', $originalTitle );
3413 $text = "[[:$originalTitle]]";
3415 $text .= $this->insertStripItem( '<!-- WARNING: template omitted, post-expand include size too large -->' );
3416 $this->limitationWarn( 'post-expand-template-inclusion' );
3419 if ( $isLocalObj ) {
3420 $ret = array( 'object' => $text );
3422 $ret = array( 'text' => $text );
3425 wfProfileOut( __METHOD__
);
3430 * Get the semi-parsed DOM representation of a template with a given title,
3431 * and its redirect destination title. Cached.
3433 * @param $title Title
3437 function getTemplateDom( $title ) {
3438 $cacheTitle = $title;
3439 $titleText = $title->getPrefixedDBkey();
3441 if ( isset( $this->mTplRedirCache
[$titleText] ) ) {
3442 list( $ns, $dbk ) = $this->mTplRedirCache
[$titleText];
3443 $title = Title
::makeTitle( $ns, $dbk );
3444 $titleText = $title->getPrefixedDBkey();
3446 if ( isset( $this->mTplDomCache
[$titleText] ) ) {
3447 return array( $this->mTplDomCache
[$titleText], $title );
3450 # Cache miss, go to the database
3451 list( $text, $title ) = $this->fetchTemplateAndTitle( $title );
3453 if ( $text === false ) {
3454 $this->mTplDomCache
[$titleText] = false;
3455 return array( false, $title );
3458 $dom = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
3459 $this->mTplDomCache
[ $titleText ] = $dom;
3461 if ( !$title->equals( $cacheTitle ) ) {
3462 $this->mTplRedirCache
[$cacheTitle->getPrefixedDBkey()] =
3463 array( $title->getNamespace(), $cdb = $title->getDBkey() );
3466 return array( $dom, $title );
3470 * Fetch the unparsed text of a template and register a reference to it.
3471 * @param Title $title
3472 * @return Array ( string or false, Title )
3474 function fetchTemplateAndTitle( $title ) {
3475 $templateCb = $this->mOptions
->getTemplateCallback(); # Defaults to Parser::statelessFetchTemplate()
3476 $stuff = call_user_func( $templateCb, $title, $this );
3477 $text = $stuff['text'];
3478 $finalTitle = isset( $stuff['finalTitle'] ) ?
$stuff['finalTitle'] : $title;
3479 if ( isset( $stuff['deps'] ) ) {
3480 foreach ( $stuff['deps'] as $dep ) {
3481 $this->mOutput
->addTemplate( $dep['title'], $dep['page_id'], $dep['rev_id'] );
3484 return array( $text, $finalTitle );
3488 * Fetch the unparsed text of a template and register a reference to it.
3489 * @param Title $title
3490 * @return mixed string or false
3492 function fetchTemplate( $title ) {
3493 $rv = $this->fetchTemplateAndTitle( $title );
3498 * Static function to get a template
3499 * Can be overridden via ParserOptions::setTemplateCallback().
3501 * @parma $title Title
3502 * @param $parser Parser
3506 static function statelessFetchTemplate( $title, $parser = false ) {
3507 $text = $skip = false;
3508 $finalTitle = $title;
3511 # Loop to fetch the article, with up to 1 redirect
3512 for ( $i = 0; $i < 2 && is_object( $title ); $i++
) {
3513 # Give extensions a chance to select the revision instead
3514 $id = false; # Assume current
3515 wfRunHooks( 'BeforeParserFetchTemplateAndtitle',
3516 array( $parser, $title, &$skip, &$id ) );
3522 'page_id' => $title->getArticleID(),
3529 ? Revision
::newFromId( $id )
3530 : Revision
::newFromTitle( $title );
3531 $rev_id = $rev ?
$rev->getId() : 0;
3532 # If there is no current revision, there is no page
3533 if ( $id === false && !$rev ) {
3534 $linkCache = LinkCache
::singleton();
3535 $linkCache->addBadLinkObj( $title );
3540 'page_id' => $title->getArticleID(),
3541 'rev_id' => $rev_id );
3542 if ( $rev && !$title->equals( $rev->getTitle() ) ) {
3543 # We fetched a rev from a different title; register it too...
3545 'title' => $rev->getTitle(),
3546 'page_id' => $rev->getPage(),
3547 'rev_id' => $rev_id );
3551 $text = $rev->getText();
3552 } elseif ( $title->getNamespace() == NS_MEDIAWIKI
) {
3554 $message = wfMessage( $wgContLang->lcfirst( $title->getText() ) )->inContentLanguage();
3555 if ( !$message->exists() ) {
3559 $text = $message->plain();
3563 if ( $text === false ) {
3567 $finalTitle = $title;
3568 $title = Title
::newFromRedirect( $text );
3572 'finalTitle' => $finalTitle,
3577 * Fetch a file and its title and register a reference to it.
3578 * If 'broken' is a key in $options then the file will appear as a broken thumbnail.
3579 * @param Title $title
3580 * @param Array $options Array of options to RepoGroup::findFile
3583 function fetchFile( $title, $options = array() ) {
3584 $res = $this->fetchFileAndTitle( $title, $options );
3589 * Fetch a file and its title and register a reference to it.
3590 * If 'broken' is a key in $options then the file will appear as a broken thumbnail.
3591 * @param Title $title
3592 * @param Array $options Array of options to RepoGroup::findFile
3593 * @return Array ( File or false, Title of file )
3595 function fetchFileAndTitle( $title, $options = array() ) {
3596 if ( isset( $options['broken'] ) ) {
3597 $file = false; // broken thumbnail forced by hook
3598 } elseif ( isset( $options['sha1'] ) ) { // get by (sha1,timestamp)
3599 $file = RepoGroup
::singleton()->findFileFromKey( $options['sha1'], $options );
3600 } else { // get by (name,timestamp)
3601 $file = wfFindFile( $title, $options );
3603 $time = $file ?
$file->getTimestamp() : false;
3604 $sha1 = $file ?
$file->getSha1() : false;
3605 # Register the file as a dependency...
3606 $this->mOutput
->addImage( $title->getDBkey(), $time, $sha1 );
3607 if ( $file && !$title->equals( $file->getTitle() ) ) {
3608 # Update fetched file title
3609 $title = $file->getTitle();
3610 if ( is_null( $file->getRedirectedTitle() ) ) {
3611 # This file was not a redirect, but the title does not match.
3612 # Register under the new name because otherwise the link will
3614 $this->mOutput
->addImage( $title->getDBkey(), $time, $sha1 );
3617 return array( $file, $title );
3621 * Transclude an interwiki link.
3623 * @param $title Title
3628 function interwikiTransclude( $title, $action ) {
3629 global $wgEnableScaryTranscluding;
3631 if ( !$wgEnableScaryTranscluding ) {
3632 return wfMsgForContent('scarytranscludedisabled');
3635 $url = $title->getFullUrl( "action=$action" );
3637 if ( strlen( $url ) > 255 ) {
3638 return wfMsgForContent( 'scarytranscludetoolong' );
3640 return $this->fetchScaryTemplateMaybeFromCache( $url );
3644 * @param $url string
3645 * @return Mixed|String
3647 function fetchScaryTemplateMaybeFromCache( $url ) {
3648 global $wgTranscludeCacheExpiry;
3649 $dbr = wfGetDB( DB_SLAVE
);
3650 $tsCond = $dbr->timestamp( time() - $wgTranscludeCacheExpiry );
3651 $obj = $dbr->selectRow( 'transcache', array('tc_time', 'tc_contents' ),
3652 array( 'tc_url' => $url, "tc_time >= " . $dbr->addQuotes( $tsCond ) ) );
3654 return $obj->tc_contents
;
3657 $text = Http
::get( $url );
3659 return wfMsgForContent( 'scarytranscludefailed', $url );
3662 $dbw = wfGetDB( DB_MASTER
);
3663 $dbw->replace( 'transcache', array('tc_url'), array(
3665 'tc_time' => $dbw->timestamp( time() ),
3666 'tc_contents' => $text)
3672 * Triple brace replacement -- used for template arguments
3675 * @param $peice array
3676 * @param $frame PPFrame
3680 function argSubstitution( $piece, $frame ) {
3681 wfProfileIn( __METHOD__
);
3684 $parts = $piece['parts'];
3685 $nameWithSpaces = $frame->expand( $piece['title'] );
3686 $argName = trim( $nameWithSpaces );
3688 $text = $frame->getArgument( $argName );
3689 if ( $text === false && $parts->getLength() > 0
3693 ||
( $this->ot
['wiki'] && $frame->isTemplate() )
3696 # No match in frame, use the supplied default
3697 $object = $parts->item( 0 )->getChildren();
3699 if ( !$this->incrementIncludeSize( 'arg', strlen( $text ) ) ) {
3700 $error = '<!-- WARNING: argument omitted, expansion size too large -->';
3701 $this->limitationWarn( 'post-expand-template-argument' );
3704 if ( $text === false && $object === false ) {
3706 $object = $frame->virtualBracketedImplode( '{{{', '|', '}}}', $nameWithSpaces, $parts );
3708 if ( $error !== false ) {
3711 if ( $object !== false ) {
3712 $ret = array( 'object' => $object );
3714 $ret = array( 'text' => $text );
3717 wfProfileOut( __METHOD__
);
3722 * Return the text to be used for a given extension tag.
3723 * This is the ghost of strip().
3725 * @param $params array Associative array of parameters:
3726 * name PPNode for the tag name
3727 * attr PPNode for unparsed text where tag attributes are thought to be
3728 * attributes Optional associative array of parsed attributes
3729 * inner Contents of extension element
3730 * noClose Original text did not have a close tag
3731 * @param $frame PPFrame
3735 function extensionSubstitution( $params, $frame ) {
3736 $name = $frame->expand( $params['name'] );
3737 $attrText = !isset( $params['attr'] ) ?
null : $frame->expand( $params['attr'] );
3738 $content = !isset( $params['inner'] ) ?
null : $frame->expand( $params['inner'] );
3739 $marker = "{$this->mUniqPrefix}-$name-" . sprintf( '%08X', $this->mMarkerIndex++
) . self
::MARKER_SUFFIX
;
3741 $isFunctionTag = isset( $this->mFunctionTagHooks
[strtolower($name)] ) &&
3742 ( $this->ot
['html'] ||
$this->ot
['pre'] );
3743 if ( $isFunctionTag ) {
3744 $markerType = 'none';
3746 $markerType = 'general';
3748 if ( $this->ot
['html'] ||
$isFunctionTag ) {
3749 $name = strtolower( $name );
3750 $attributes = Sanitizer
::decodeTagAttributes( $attrText );
3751 if ( isset( $params['attributes'] ) ) {
3752 $attributes = $attributes +
$params['attributes'];
3755 if ( isset( $this->mTagHooks
[$name] ) ) {
3756 # Workaround for PHP bug 35229 and similar
3757 if ( !is_callable( $this->mTagHooks
[$name] ) ) {
3758 throw new MWException( "Tag hook for $name is not callable\n" );
3760 $output = call_user_func_array( $this->mTagHooks
[$name],
3761 array( $content, $attributes, $this, $frame ) );
3762 } elseif ( isset( $this->mFunctionTagHooks
[$name] ) ) {
3763 list( $callback, $flags ) = $this->mFunctionTagHooks
[$name];
3764 if ( !is_callable( $callback ) ) {
3765 throw new MWException( "Tag hook for $name is not callable\n" );
3768 $output = call_user_func_array( $callback, array( &$this, $frame, $content, $attributes ) );
3770 $output = '<span class="error">Invalid tag extension name: ' .
3771 htmlspecialchars( $name ) . '</span>';
3774 if ( is_array( $output ) ) {
3775 # Extract flags to local scope (to override $markerType)
3777 $output = $flags[0];
3782 if ( is_null( $attrText ) ) {
3785 if ( isset( $params['attributes'] ) ) {
3786 foreach ( $params['attributes'] as $attrName => $attrValue ) {
3787 $attrText .= ' ' . htmlspecialchars( $attrName ) . '="' .
3788 htmlspecialchars( $attrValue ) . '"';
3791 if ( $content === null ) {
3792 $output = "<$name$attrText/>";
3794 $close = is_null( $params['close'] ) ?
'' : $frame->expand( $params['close'] );
3795 $output = "<$name$attrText>$content$close";
3799 if ( $markerType === 'none' ) {
3801 } elseif ( $markerType === 'nowiki' ) {
3802 $this->mStripState
->addNoWiki( $marker, $output );
3803 } elseif ( $markerType === 'general' ) {
3804 $this->mStripState
->addGeneral( $marker, $output );
3806 throw new MWException( __METHOD__
.': invalid marker type' );
3812 * Increment an include size counter
3814 * @param $type String: the type of expansion
3815 * @param $size Integer: the size of the text
3816 * @return Boolean: false if this inclusion would take it over the maximum, true otherwise
3818 function incrementIncludeSize( $type, $size ) {
3819 if ( $this->mIncludeSizes
[$type] +
$size > $this->mOptions
->getMaxIncludeSize() ) {
3822 $this->mIncludeSizes
[$type] +
= $size;
3828 * Increment the expensive function count
3830 * @return Boolean: false if the limit has been exceeded
3832 function incrementExpensiveFunctionCount() {
3833 global $wgExpensiveParserFunctionLimit;
3834 $this->mExpensiveFunctionCount++
;
3835 if ( $this->mExpensiveFunctionCount
<= $wgExpensiveParserFunctionLimit ) {
3842 * Strip double-underscore items like __NOGALLERY__ and __NOTOC__
3843 * Fills $this->mDoubleUnderscores, returns the modified text
3845 * @param $text string
3849 function doDoubleUnderscore( $text ) {
3850 wfProfileIn( __METHOD__
);
3852 # The position of __TOC__ needs to be recorded
3853 $mw = MagicWord
::get( 'toc' );
3854 if ( $mw->match( $text ) ) {
3855 $this->mShowToc
= true;
3856 $this->mForceTocPosition
= true;
3858 # Set a placeholder. At the end we'll fill it in with the TOC.
3859 $text = $mw->replace( '<!--MWTOC-->', $text, 1 );
3861 # Only keep the first one.
3862 $text = $mw->replace( '', $text );
3865 # Now match and remove the rest of them
3866 $mwa = MagicWord
::getDoubleUnderscoreArray();
3867 $this->mDoubleUnderscores
= $mwa->matchAndRemove( $text );
3869 if ( isset( $this->mDoubleUnderscores
['nogallery'] ) ) {
3870 $this->mOutput
->mNoGallery
= true;
3872 if ( isset( $this->mDoubleUnderscores
['notoc'] ) && !$this->mForceTocPosition
) {
3873 $this->mShowToc
= false;
3875 if ( isset( $this->mDoubleUnderscores
['hiddencat'] ) && $this->mTitle
->getNamespace() == NS_CATEGORY
) {
3876 $this->addTrackingCategory( 'hidden-category-category' );
3878 # (bug 8068) Allow control over whether robots index a page.
3880 # @todo FIXME: Bug 14899: __INDEX__ always overrides __NOINDEX__ here! This
3881 # is not desirable, the last one on the page should win.
3882 if ( isset( $this->mDoubleUnderscores
['noindex'] ) && $this->mTitle
->canUseNoindex() ) {
3883 $this->mOutput
->setIndexPolicy( 'noindex' );
3884 $this->addTrackingCategory( 'noindex-category' );
3886 if ( isset( $this->mDoubleUnderscores
['index'] ) && $this->mTitle
->canUseNoindex() ) {
3887 $this->mOutput
->setIndexPolicy( 'index' );
3888 $this->addTrackingCategory( 'index-category' );
3891 # Cache all double underscores in the database
3892 foreach ( $this->mDoubleUnderscores
as $key => $val ) {
3893 $this->mOutput
->setProperty( $key, '' );
3896 wfProfileOut( __METHOD__
);
3901 * Add a tracking category, getting the title from a system message,
3902 * or print a debug message if the title is invalid.
3904 * @param $msg String: message key
3905 * @return Boolean: whether the addition was successful
3907 public function addTrackingCategory( $msg ) {
3908 if ( $this->mTitle
->getNamespace() === NS_SPECIAL
) {
3909 wfDebug( __METHOD__
.": Not adding tracking category $msg to special page!\n" );
3912 // Important to parse with correct title (bug 31469)
3913 $cat = wfMessage( $msg )
3914 ->title( $this->getTitle() )
3915 ->inContentLanguage()
3918 # Allow tracking categories to be disabled by setting them to "-"
3919 if ( $cat === '-' ) {
3923 $containerCategory = Title
::makeTitleSafe( NS_CATEGORY
, $cat );
3924 if ( $containerCategory ) {
3925 $this->mOutput
->addCategory( $containerCategory->getDBkey(), $this->getDefaultSort() );
3928 wfDebug( __METHOD__
.": [[MediaWiki:$msg]] is not a valid title!\n" );
3934 * This function accomplishes several tasks:
3935 * 1) Auto-number headings if that option is enabled
3936 * 2) Add an [edit] link to sections for users who have enabled the option and can edit the page
3937 * 3) Add a Table of contents on the top for users who have enabled the option
3938 * 4) Auto-anchor headings
3940 * It loops through all headlines, collects the necessary data, then splits up the
3941 * string and re-inserts the newly formatted headlines.
3943 * @param $text String
3944 * @param $origText String: original, untouched wikitext
3945 * @param $isMain Boolean
3946 * @return mixed|string
3949 function formatHeadings( $text, $origText, $isMain=true ) {
3950 global $wgMaxTocLevel, $wgHtml5, $wgExperimentalHtmlIds;
3952 # Inhibit editsection links if requested in the page
3953 if ( isset( $this->mDoubleUnderscores
['noeditsection'] ) ) {
3954 $maybeShowEditLink = $showEditLink = false;
3956 $maybeShowEditLink = true; /* Actual presence will depend on ParserOptions option */
3957 $showEditLink = $this->mOptions
->getEditSection();
3959 if ( $showEditLink ) {
3960 $this->mOutput
->setEditSectionTokens( true );
3963 # Get all headlines for numbering them and adding funky stuff like [edit]
3964 # links - this is for later, but we need the number of headlines right now
3966 $numMatches = preg_match_all( '/<H(?P<level>[1-6])(?P<attrib>.*?'.'>)(?P<header>.*?)<\/H[1-6] *>/i', $text, $matches );
3968 # if there are fewer than 4 headlines in the article, do not show TOC
3969 # unless it's been explicitly enabled.
3970 $enoughToc = $this->mShowToc
&&
3971 ( ( $numMatches >= 4 ) ||
$this->mForceTocPosition
);
3973 # Allow user to stipulate that a page should have a "new section"
3974 # link added via __NEWSECTIONLINK__
3975 if ( isset( $this->mDoubleUnderscores
['newsectionlink'] ) ) {
3976 $this->mOutput
->setNewSection( true );
3979 # Allow user to remove the "new section"
3980 # link via __NONEWSECTIONLINK__
3981 if ( isset( $this->mDoubleUnderscores
['nonewsectionlink'] ) ) {
3982 $this->mOutput
->hideNewSection( true );
3985 # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
3986 # override above conditions and always show TOC above first header
3987 if ( isset( $this->mDoubleUnderscores
['forcetoc'] ) ) {
3988 $this->mShowToc
= true;
3996 # Ugh .. the TOC should have neat indentation levels which can be
3997 # passed to the skin functions. These are determined here
4001 $sublevelCount = array();
4002 $levelCount = array();
4007 $markerRegex = "{$this->mUniqPrefix}-h-(\d+)-" . self
::MARKER_SUFFIX
;
4008 $baseTitleText = $this->mTitle
->getPrefixedDBkey();
4009 $oldType = $this->mOutputType
;
4010 $this->setOutputType( self
::OT_WIKI
);
4011 $frame = $this->getPreprocessor()->newFrame();
4012 $root = $this->preprocessToDom( $origText );
4013 $node = $root->getFirstChild();
4018 foreach ( $matches[3] as $headline ) {
4019 $isTemplate = false;
4021 $sectionIndex = false;
4023 $markerMatches = array();
4024 if ( preg_match("/^$markerRegex/", $headline, $markerMatches ) ) {
4025 $serial = $markerMatches[1];
4026 list( $titleText, $sectionIndex ) = $this->mHeadings
[$serial];
4027 $isTemplate = ( $titleText != $baseTitleText );
4028 $headline = preg_replace( "/^$markerRegex/", "", $headline );
4032 $prevlevel = $level;
4034 $level = $matches[1][$headlineCount];
4036 if ( $level > $prevlevel ) {
4037 # Increase TOC level
4039 $sublevelCount[$toclevel] = 0;
4040 if ( $toclevel<$wgMaxTocLevel ) {
4041 $prevtoclevel = $toclevel;
4042 $toc .= Linker
::tocIndent();
4045 } elseif ( $level < $prevlevel && $toclevel > 1 ) {
4046 # Decrease TOC level, find level to jump to
4048 for ( $i = $toclevel; $i > 0; $i-- ) {
4049 if ( $levelCount[$i] == $level ) {
4050 # Found last matching level
4053 } elseif ( $levelCount[$i] < $level ) {
4054 # Found first matching level below current level
4062 if ( $toclevel<$wgMaxTocLevel ) {
4063 if ( $prevtoclevel < $wgMaxTocLevel ) {
4064 # Unindent only if the previous toc level was shown :p
4065 $toc .= Linker
::tocUnindent( $prevtoclevel - $toclevel );
4066 $prevtoclevel = $toclevel;
4068 $toc .= Linker
::tocLineEnd();
4072 # No change in level, end TOC line
4073 if ( $toclevel<$wgMaxTocLevel ) {
4074 $toc .= Linker
::tocLineEnd();
4078 $levelCount[$toclevel] = $level;
4080 # count number of headlines for each level
4081 @$sublevelCount[$toclevel]++
;
4083 for( $i = 1; $i <= $toclevel; $i++
) {
4084 if ( !empty( $sublevelCount[$i] ) ) {
4088 $numbering .= $this->getTargetLanguage()->formatNum( $sublevelCount[$i] );
4093 # The safe header is a version of the header text safe to use for links
4095 # Remove link placeholders by the link text.
4096 # <!--LINK number-->
4098 # link text with suffix
4099 # Do this before unstrip since link text can contain strip markers
4100 $safeHeadline = $this->replaceLinkHoldersText( $headline );
4102 # Avoid insertion of weird stuff like <math> by expanding the relevant sections
4103 $safeHeadline = $this->mStripState
->unstripBoth( $safeHeadline );
4105 # Strip out HTML (first regex removes any tag not allowed)
4106 # Allowed tags are <sup> and <sub> (bug 8393), <i> (bug 26375) and <b> (r105284)
4107 # We strip any parameter from accepted tags (second regex)
4108 $tocline = preg_replace(
4109 array( '#<(?!/?(sup|sub|i|b)(?: [^>]*)?>).*?'.'>#', '#<(/?(sup|sub|i|b))(?: .*?)?'.'>#' ),
4110 array( '', '<$1>' ),
4113 $tocline = trim( $tocline );
4115 # For the anchor, strip out HTML-y stuff period
4116 $safeHeadline = preg_replace( '/<.*?'.'>/', '', $safeHeadline );
4117 $safeHeadline = Sanitizer
::normalizeSectionNameWhitespace( $safeHeadline );
4119 # Save headline for section edit hint before it's escaped
4120 $headlineHint = $safeHeadline;
4122 if ( $wgHtml5 && $wgExperimentalHtmlIds ) {
4123 # For reverse compatibility, provide an id that's
4124 # HTML4-compatible, like we used to.
4126 # It may be worth noting, academically, that it's possible for
4127 # the legacy anchor to conflict with a non-legacy headline
4128 # anchor on the page. In this case likely the "correct" thing
4129 # would be to either drop the legacy anchors or make sure
4130 # they're numbered first. However, this would require people
4131 # to type in section names like "abc_.D7.93.D7.90.D7.A4"
4132 # manually, so let's not bother worrying about it.
4133 $legacyHeadline = Sanitizer
::escapeId( $safeHeadline,
4134 array( 'noninitial', 'legacy' ) );
4135 $safeHeadline = Sanitizer
::escapeId( $safeHeadline );
4137 if ( $legacyHeadline == $safeHeadline ) {
4138 # No reason to have both (in fact, we can't)
4139 $legacyHeadline = false;
4142 $legacyHeadline = false;
4143 $safeHeadline = Sanitizer
::escapeId( $safeHeadline,
4147 # HTML names must be case-insensitively unique (bug 10721).
4148 # This does not apply to Unicode characters per
4149 # http://dev.w3.org/html5/spec/infrastructure.html#case-sensitivity-and-string-comparison
4150 # @todo FIXME: We may be changing them depending on the current locale.
4151 $arrayKey = strtolower( $safeHeadline );
4152 if ( $legacyHeadline === false ) {
4153 $legacyArrayKey = false;
4155 $legacyArrayKey = strtolower( $legacyHeadline );
4158 # count how many in assoc. array so we can track dupes in anchors
4159 if ( isset( $refers[$arrayKey] ) ) {
4160 $refers[$arrayKey]++
;
4162 $refers[$arrayKey] = 1;
4164 if ( isset( $refers[$legacyArrayKey] ) ) {
4165 $refers[$legacyArrayKey]++
;
4167 $refers[$legacyArrayKey] = 1;
4170 # Don't number the heading if it is the only one (looks silly)
4171 if ( count( $matches[3] ) > 1 && $this->mOptions
->getNumberHeadings() ) {
4172 # the two are different if the line contains a link
4173 $headline = $numbering . ' ' . $headline;
4176 # Create the anchor for linking from the TOC to the section
4177 $anchor = $safeHeadline;
4178 $legacyAnchor = $legacyHeadline;
4179 if ( $refers[$arrayKey] > 1 ) {
4180 $anchor .= '_' . $refers[$arrayKey];
4182 if ( $legacyHeadline !== false && $refers[$legacyArrayKey] > 1 ) {
4183 $legacyAnchor .= '_' . $refers[$legacyArrayKey];
4185 if ( $enoughToc && ( !isset( $wgMaxTocLevel ) ||
$toclevel < $wgMaxTocLevel ) ) {
4186 $toc .= Linker
::tocLine( $anchor, $tocline,
4187 $numbering, $toclevel, ( $isTemplate ?
false : $sectionIndex ) );
4190 # Add the section to the section tree
4191 # Find the DOM node for this header
4192 while ( $node && !$isTemplate ) {
4193 if ( $node->getName() === 'h' ) {
4194 $bits = $node->splitHeading();
4195 if ( $bits['i'] == $sectionIndex ) {
4199 $byteOffset +
= mb_strlen( $this->mStripState
->unstripBoth(
4200 $frame->expand( $node, PPFrame
::RECOVER_ORIG
) ) );
4201 $node = $node->getNextSibling();
4204 'toclevel' => $toclevel,
4207 'number' => $numbering,
4208 'index' => ( $isTemplate ?
'T-' : '' ) . $sectionIndex,
4209 'fromtitle' => $titleText,
4210 'byteoffset' => ( $isTemplate ?
null : $byteOffset ),
4211 'anchor' => $anchor,
4214 # give headline the correct <h#> tag
4215 if ( $maybeShowEditLink && $sectionIndex !== false ) {
4216 // Output edit section links as markers with styles that can be customized by skins
4217 if ( $isTemplate ) {
4218 # Put a T flag in the section identifier, to indicate to extractSections()
4219 # that sections inside <includeonly> should be counted.
4220 $editlinkArgs = array( $titleText, "T-$sectionIndex"/*, null */ );
4222 $editlinkArgs = array( $this->mTitle
->getPrefixedText(), $sectionIndex, $headlineHint );
4224 // We use a bit of pesudo-xml for editsection markers. The language converter is run later on
4225 // Using a UNIQ style marker leads to the converter screwing up the tokens when it converts stuff
4226 // And trying to insert strip tags fails too. At this point all real inputted tags have already been escaped
4227 // so we don't have to worry about a user trying to input one of these markers directly.
4228 // We use a page and section attribute to stop the language converter from converting these important bits
4229 // of data, but put the headline hint inside a content block because the language converter is supposed to
4230 // be able to convert that piece of data.
4231 $editlink = '<mw:editsection page="' . htmlspecialchars($editlinkArgs[0]);
4232 $editlink .= '" section="' . htmlspecialchars($editlinkArgs[1]) .'"';
4233 if ( isset($editlinkArgs[2]) ) {
4234 $editlink .= '>' . $editlinkArgs[2] . '</mw:editsection>';
4241 $head[$headlineCount] = Linker
::makeHeadline( $level,
4242 $matches['attrib'][$headlineCount], $anchor, $headline,
4243 $editlink, $legacyAnchor );
4248 $this->setOutputType( $oldType );
4250 # Never ever show TOC if no headers
4251 if ( $numVisible < 1 ) {
4256 if ( $prevtoclevel > 0 && $prevtoclevel < $wgMaxTocLevel ) {
4257 $toc .= Linker
::tocUnindent( $prevtoclevel - 1 );
4259 $toc = Linker
::tocList( $toc, $this->mOptions
->getUserLangObj() );
4260 $this->mOutput
->setTOCHTML( $toc );
4264 $this->mOutput
->setSections( $tocraw );
4267 # split up and insert constructed headlines
4268 $blocks = preg_split( '/<H[1-6].*?' . '>.*?<\/H[1-6]>/i', $text );
4271 // build an array of document sections
4272 $sections = array();
4273 foreach ( $blocks as $block ) {
4274 // $head is zero-based, sections aren't.
4275 if ( empty( $head[$i - 1] ) ) {
4276 $sections[$i] = $block;
4278 $sections[$i] = $head[$i - 1] . $block;
4282 * Send a hook, one per section.
4283 * The idea here is to be able to make section-level DIVs, but to do so in a
4284 * lower-impact, more correct way than r50769
4287 * $section : the section number
4288 * &$sectionContent : ref to the content of the section
4289 * $showEditLinks : boolean describing whether this section has an edit link
4291 wfRunHooks( 'ParserSectionCreate', array( $this, $i, &$sections[$i], $showEditLink ) );
4296 if ( $enoughToc && $isMain && !$this->mForceTocPosition
) {
4297 // append the TOC at the beginning
4298 // Top anchor now in skin
4299 $sections[0] = $sections[0] . $toc . "\n";
4302 $full .= join( '', $sections );
4304 if ( $this->mForceTocPosition
) {
4305 return str_replace( '<!--MWTOC-->', $toc, $full );
4312 * Transform wiki markup when saving a page by doing \r\n -> \n
4313 * conversion, substitting signatures, {{subst:}} templates, etc.
4315 * @param $text String: the text to transform
4316 * @param $title Title: the Title object for the current article
4317 * @param $user User: the User object describing the current user
4318 * @param $options ParserOptions: parsing options
4319 * @param $clearState Boolean: whether to clear the parser state first
4320 * @return String: the altered wiki markup
4322 public function preSaveTransform( $text, Title
$title, User
$user, ParserOptions
$options, $clearState = true ) {
4323 $this->startParse( $title, $options, self
::OT_WIKI
, $clearState );
4324 $this->setUser( $user );
4329 $text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text );
4330 if( $options->getPreSaveTransform() ) {
4331 $text = $this->pstPass2( $text, $user );
4333 $text = $this->mStripState
->unstripBoth( $text );
4335 $this->setUser( null ); #Reset
4341 * Pre-save transform helper function
4344 * @param $text string
4349 function pstPass2( $text, $user ) {
4350 global $wgContLang, $wgLocaltimezone;
4352 # Note: This is the timestamp saved as hardcoded wikitext to
4353 # the database, we use $wgContLang here in order to give
4354 # everyone the same signature and use the default one rather
4355 # than the one selected in each user's preferences.
4356 # (see also bug 12815)
4357 $ts = $this->mOptions
->getTimestamp();
4358 if ( isset( $wgLocaltimezone ) ) {
4359 $tz = $wgLocaltimezone;
4361 $tz = date_default_timezone_get();
4364 $unixts = wfTimestamp( TS_UNIX
, $ts );
4365 $oldtz = date_default_timezone_get();
4366 date_default_timezone_set( $tz );
4367 $ts = date( 'YmdHis', $unixts );
4368 $tzMsg = date( 'T', $unixts ); # might vary on DST changeover!
4370 # Allow translation of timezones through wiki. date() can return
4371 # whatever crap the system uses, localised or not, so we cannot
4372 # ship premade translations.
4373 $key = 'timezone-' . strtolower( trim( $tzMsg ) );
4374 $msg = wfMessage( $key )->inContentLanguage();
4375 if ( $msg->exists() ) {
4376 $tzMsg = $msg->text();
4379 date_default_timezone_set( $oldtz );
4381 $d = $wgContLang->timeanddate( $ts, false, false ) . " ($tzMsg)";
4383 # Variable replacement
4384 # Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
4385 $text = $this->replaceVariables( $text );
4387 # This works almost by chance, as the replaceVariables are done before the getUserSig(),
4388 # which may corrupt this parser instance via its wfMsgExt( parsemag ) call-
4391 $sigText = $this->getUserSig( $user );
4392 $text = strtr( $text, array(
4394 '~~~~' => "$sigText $d",
4398 # Context links: [[|name]] and [[name (context)|]]
4399 global $wgLegalTitleChars;
4400 $tc = "[$wgLegalTitleChars]";
4401 $nc = '[ _0-9A-Za-z\x80-\xff-]'; # Namespaces can use non-ascii!
4403 $p1 = "/\[\[(:?$nc+:|:|)($tc+?)( ?\\($tc+\\))\\|]]/"; # [[ns:page (context)|]]
4404 $p4 = "/\[\[(:?$nc+:|:|)($tc+?)( ?($tc+))\\|]]/"; # [[ns:page(context)|]]
4405 $p3 = "/\[\[(:?$nc+:|:|)($tc+?)( ?\\($tc+\\)|)(, $tc+|)\\|]]/"; # [[ns:page (context), context|]]
4406 $p2 = "/\[\[\\|($tc+)]]/"; # [[|page]]
4408 # try $p1 first, to turn "[[A, B (C)|]]" into "[[A, B (C)|A, B]]"
4409 $text = preg_replace( $p1, '[[\\1\\2\\3|\\2]]', $text );
4410 $text = preg_replace( $p4, '[[\\1\\2\\3|\\2]]', $text );
4411 $text = preg_replace( $p3, '[[\\1\\2\\3\\4|\\2]]', $text );
4413 $t = $this->mTitle
->getText();
4415 if ( preg_match( "/^($nc+:|)$tc+?( \\($tc+\\))$/", $t, $m ) ) {
4416 $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
4417 } elseif ( preg_match( "/^($nc+:|)$tc+?(, $tc+|)$/", $t, $m ) && "$m[1]$m[2]" != '' ) {
4418 $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
4420 # if there's no context, don't bother duplicating the title
4421 $text = preg_replace( $p2, '[[\\1]]', $text );
4424 # Trim trailing whitespace
4425 $text = rtrim( $text );
4431 * Fetch the user's signature text, if any, and normalize to
4432 * validated, ready-to-insert wikitext.
4433 * If you have pre-fetched the nickname or the fancySig option, you can
4434 * specify them here to save a database query.
4435 * Do not reuse this parser instance after calling getUserSig(),
4436 * as it may have changed if it's the $wgParser.
4439 * @param $nickname String|bool nickname to use or false to use user's default nickname
4440 * @param $fancySig Boolean|null whether the nicknname is the complete signature
4441 * or null to use default value
4444 function getUserSig( &$user, $nickname = false, $fancySig = null ) {
4445 global $wgMaxSigChars;
4447 $username = $user->getName();
4449 # If not given, retrieve from the user object.
4450 if ( $nickname === false )
4451 $nickname = $user->getOption( 'nickname' );
4453 if ( is_null( $fancySig ) ) {
4454 $fancySig = $user->getBoolOption( 'fancysig' );
4457 $nickname = $nickname == null ?
$username : $nickname;
4459 if ( mb_strlen( $nickname ) > $wgMaxSigChars ) {
4460 $nickname = $username;
4461 wfDebug( __METHOD__
. ": $username has overlong signature.\n" );
4462 } elseif ( $fancySig !== false ) {
4463 # Sig. might contain markup; validate this
4464 if ( $this->validateSig( $nickname ) !== false ) {
4465 # Validated; clean up (if needed) and return it
4466 return $this->cleanSig( $nickname, true );
4468 # Failed to validate; fall back to the default
4469 $nickname = $username;
4470 wfDebug( __METHOD__
.": $username has bad XML tags in signature.\n" );
4474 # Make sure nickname doesnt get a sig in a sig
4475 $nickname = self
::cleanSigInSig( $nickname );
4477 # If we're still here, make it a link to the user page
4478 $userText = wfEscapeWikiText( $username );
4479 $nickText = wfEscapeWikiText( $nickname );
4480 $msgName = $user->isAnon() ?
'signature-anon' : 'signature';
4482 return wfMessage( $msgName, $userText, $nickText )->inContentLanguage()->title( $this->getTitle() )->text();
4486 * Check that the user's signature contains no bad XML
4488 * @param $text String
4489 * @return mixed An expanded string, or false if invalid.
4491 function validateSig( $text ) {
4492 return( Xml
::isWellFormedXmlFragment( $text ) ?
$text : false );
4496 * Clean up signature text
4498 * 1) Strip ~~~, ~~~~ and ~~~~~ out of signatures @see cleanSigInSig
4499 * 2) Substitute all transclusions
4501 * @param $text String
4502 * @param $parsing bool Whether we're cleaning (preferences save) or parsing
4503 * @return String: signature text
4505 public function cleanSig( $text, $parsing = false ) {
4508 $this->startParse( $wgTitle, new ParserOptions
, self
::OT_PREPROCESS
, true );
4511 # Option to disable this feature
4512 if ( !$this->mOptions
->getCleanSignatures() ) {
4516 # @todo FIXME: Regex doesn't respect extension tags or nowiki
4517 # => Move this logic to braceSubstitution()
4518 $substWord = MagicWord
::get( 'subst' );
4519 $substRegex = '/\{\{(?!(?:' . $substWord->getBaseRegex() . '))/x' . $substWord->getRegexCase();
4520 $substText = '{{' . $substWord->getSynonym( 0 );
4522 $text = preg_replace( $substRegex, $substText, $text );
4523 $text = self
::cleanSigInSig( $text );
4524 $dom = $this->preprocessToDom( $text );
4525 $frame = $this->getPreprocessor()->newFrame();
4526 $text = $frame->expand( $dom );
4529 $text = $this->mStripState
->unstripBoth( $text );
4536 * Strip ~~~, ~~~~ and ~~~~~ out of signatures
4538 * @param $text String
4539 * @return String: signature text with /~{3,5}/ removed
4541 public static function cleanSigInSig( $text ) {
4542 $text = preg_replace( '/~{3,5}/', '', $text );
4547 * Set up some variables which are usually set up in parse()
4548 * so that an external function can call some class members with confidence
4550 * @param $title Title|null
4551 * @param $options ParserOptions
4552 * @param $outputType
4553 * @param $clearState bool
4555 public function startExternalParse( Title
$title = null, ParserOptions
$options, $outputType, $clearState = true ) {
4556 $this->startParse( $title, $options, $outputType, $clearState );
4560 * @param $title Title|null
4561 * @param $options ParserOptions
4562 * @param $outputType
4563 * @param $clearState bool
4565 private function startParse( Title
$title = null, ParserOptions
$options, $outputType, $clearState = true ) {
4566 $this->setTitle( $title );
4567 $this->mOptions
= $options;
4568 $this->setOutputType( $outputType );
4569 if ( $clearState ) {
4570 $this->clearState();
4575 * Wrapper for preprocess()
4577 * @param $text String: the text to preprocess
4578 * @param $options ParserOptions: options
4579 * @param $title Title object or null to use $wgTitle
4582 public function transformMsg( $text, $options, $title = null ) {
4583 static $executing = false;
4585 # Guard against infinite recursion
4591 wfProfileIn( __METHOD__
);
4597 # It's not uncommon having a null $wgTitle in scripts. See r80898
4598 # Create a ghost title in such case
4599 $title = Title
::newFromText( 'Dwimmerlaik' );
4601 $text = $this->preprocess( $text, $title, $options );
4604 wfProfileOut( __METHOD__
);
4609 * Create an HTML-style tag, e.g. <yourtag>special text</yourtag>
4610 * The callback should have the following form:
4611 * function myParserHook( $text, $params, $parser, $frame ) { ... }
4613 * Transform and return $text. Use $parser for any required context, e.g. use
4614 * $parser->getTitle() and $parser->getOptions() not $wgTitle or $wgOut->mParserOptions
4616 * Hooks may return extended information by returning an array, of which the
4617 * first numbered element (index 0) must be the return string, and all other
4618 * entries are extracted into local variables within an internal function
4619 * in the Parser class.
4621 * This interface (introduced r61913) appears to be undocumented, but
4622 * 'markerName' is used by some core tag hooks to override which strip
4623 * array their results are placed in. **Use great caution if attempting
4624 * this interface, as it is not documented and injudicious use could smash
4625 * private variables.**
4627 * @param $tag Mixed: the tag to use, e.g. 'hook' for <hook>
4628 * @param $callback Mixed: the callback function (and object) to use for the tag
4629 * @return Mixed|null The old value of the mTagHooks array associated with the hook
4631 public function setHook( $tag, $callback ) {
4632 $tag = strtolower( $tag );
4633 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
4634 throw new MWException( "Invalid character {$m[0]} in setHook('$tag', ...) call" );
4636 $oldVal = isset( $this->mTagHooks
[$tag] ) ?
$this->mTagHooks
[$tag] : null;
4637 $this->mTagHooks
[$tag] = $callback;
4638 if ( !in_array( $tag, $this->mStripList
) ) {
4639 $this->mStripList
[] = $tag;
4646 * As setHook(), but letting the contents be parsed.
4648 * Transparent tag hooks are like regular XML-style tag hooks, except they
4649 * operate late in the transformation sequence, on HTML instead of wikitext.
4651 * This is probably obsoleted by things dealing with parser frames?
4652 * The only extension currently using it is geoserver.
4655 * @todo better document or deprecate this
4657 * @param $tag Mixed: the tag to use, e.g. 'hook' for <hook>
4658 * @param $callback Mixed: the callback function (and object) to use for the tag
4659 * @return Mixed|null The old value of the mTagHooks array associated with the hook
4661 function setTransparentTagHook( $tag, $callback ) {
4662 $tag = strtolower( $tag );
4663 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
4664 throw new MWException( "Invalid character {$m[0]} in setTransparentHook('$tag', ...) call" );
4666 $oldVal = isset( $this->mTransparentTagHooks
[$tag] ) ?
$this->mTransparentTagHooks
[$tag] : null;
4667 $this->mTransparentTagHooks
[$tag] = $callback;
4673 * Remove all tag hooks
4675 function clearTagHooks() {
4676 $this->mTagHooks
= array();
4677 $this->mFunctionTagHooks
= array();
4678 $this->mStripList
= $this->mDefaultStripList
;
4682 * Create a function, e.g. {{sum:1|2|3}}
4683 * The callback function should have the form:
4684 * function myParserFunction( &$parser, $arg1, $arg2, $arg3 ) { ... }
4686 * Or with SFH_OBJECT_ARGS:
4687 * function myParserFunction( $parser, $frame, $args ) { ... }
4689 * The callback may either return the text result of the function, or an array with the text
4690 * in element 0, and a number of flags in the other elements. The names of the flags are
4691 * specified in the keys. Valid flags are:
4692 * found The text returned is valid, stop processing the template. This
4694 * nowiki Wiki markup in the return value should be escaped
4695 * isHTML The returned text is HTML, armour it against wikitext transformation
4697 * @param $id String: The magic word ID
4698 * @param $callback Mixed: the callback function (and object) to use
4699 * @param $flags Integer: a combination of the following flags:
4700 * SFH_NO_HASH No leading hash, i.e. {{plural:...}} instead of {{#if:...}}
4702 * SFH_OBJECT_ARGS Pass the template arguments as PPNode objects instead of text. This
4703 * allows for conditional expansion of the parse tree, allowing you to eliminate dead
4704 * branches and thus speed up parsing. It is also possible to analyse the parse tree of
4705 * the arguments, and to control the way they are expanded.
4707 * The $frame parameter is a PPFrame. This can be used to produce expanded text from the
4708 * arguments, for instance:
4709 * $text = isset( $args[0] ) ? $frame->expand( $args[0] ) : '';
4711 * For technical reasons, $args[0] is pre-expanded and will be a string. This may change in
4712 * future versions. Please call $frame->expand() on it anyway so that your code keeps
4713 * working if/when this is changed.
4715 * If you want whitespace to be trimmed from $args, you need to do it yourself, post-
4718 * Please read the documentation in includes/parser/Preprocessor.php for more information
4719 * about the methods available in PPFrame and PPNode.
4721 * @return string|callback The old callback function for this name, if any
4723 public function setFunctionHook( $id, $callback, $flags = 0 ) {
4726 $oldVal = isset( $this->mFunctionHooks
[$id] ) ?
$this->mFunctionHooks
[$id][0] : null;
4727 $this->mFunctionHooks
[$id] = array( $callback, $flags );
4729 # Add to function cache
4730 $mw = MagicWord
::get( $id );
4732 throw new MWException( __METHOD__
.'() expecting a magic word identifier.' );
4734 $synonyms = $mw->getSynonyms();
4735 $sensitive = intval( $mw->isCaseSensitive() );
4737 foreach ( $synonyms as $syn ) {
4739 if ( !$sensitive ) {
4740 $syn = $wgContLang->lc( $syn );
4743 if ( !( $flags & SFH_NO_HASH
) ) {
4746 # Remove trailing colon
4747 if ( substr( $syn, -1, 1 ) === ':' ) {
4748 $syn = substr( $syn, 0, -1 );
4750 $this->mFunctionSynonyms
[$sensitive][$syn] = $id;
4756 * Get all registered function hook identifiers
4760 function getFunctionHooks() {
4761 return array_keys( $this->mFunctionHooks
);
4765 * Create a tag function, e.g. <test>some stuff</test>.
4766 * Unlike tag hooks, tag functions are parsed at preprocessor level.
4767 * Unlike parser functions, their content is not preprocessed.
4770 function setFunctionTagHook( $tag, $callback, $flags ) {
4771 $tag = strtolower( $tag );
4772 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) throw new MWException( "Invalid character {$m[0]} in setFunctionTagHook('$tag', ...) call" );
4773 $old = isset( $this->mFunctionTagHooks
[$tag] ) ?
4774 $this->mFunctionTagHooks
[$tag] : null;
4775 $this->mFunctionTagHooks
[$tag] = array( $callback, $flags );
4777 if ( !in_array( $tag, $this->mStripList
) ) {
4778 $this->mStripList
[] = $tag;
4785 * @todo FIXME: Update documentation. makeLinkObj() is deprecated.
4786 * Replace <!--LINK--> link placeholders with actual links, in the buffer
4787 * Placeholders created in Skin::makeLinkObj()
4789 * @param $text string
4790 * @param $options int
4792 * @return array of link CSS classes, indexed by PDBK.
4794 function replaceLinkHolders( &$text, $options = 0 ) {
4795 return $this->mLinkHolders
->replace( $text );
4799 * Replace <!--LINK--> link placeholders with plain text of links
4800 * (not HTML-formatted).
4802 * @param $text String
4805 function replaceLinkHoldersText( $text ) {
4806 return $this->mLinkHolders
->replaceText( $text );
4810 * Renders an image gallery from a text with one line per image.
4811 * text labels may be given by using |-style alternative text. E.g.
4812 * Image:one.jpg|The number "1"
4813 * Image:tree.jpg|A tree
4814 * given as text will return the HTML of a gallery with two images,
4815 * labeled 'The number "1"' and
4818 * @param string $text
4819 * @param array $params
4820 * @return string HTML
4822 function renderImageGallery( $text, $params ) {
4823 $ig = new ImageGallery();
4824 $ig->setContextTitle( $this->mTitle
);
4825 $ig->setShowBytes( false );
4826 $ig->setShowFilename( false );
4827 $ig->setParser( $this );
4828 $ig->setHideBadImages();
4829 $ig->setAttributes( Sanitizer
::validateTagAttributes( $params, 'table' ) );
4831 if ( isset( $params['showfilename'] ) ) {
4832 $ig->setShowFilename( true );
4834 $ig->setShowFilename( false );
4836 if ( isset( $params['caption'] ) ) {
4837 $caption = $params['caption'];
4838 $caption = htmlspecialchars( $caption );
4839 $caption = $this->replaceInternalLinks( $caption );
4840 $ig->setCaptionHtml( $caption );
4842 if ( isset( $params['perrow'] ) ) {
4843 $ig->setPerRow( $params['perrow'] );
4845 if ( isset( $params['widths'] ) ) {
4846 $ig->setWidths( $params['widths'] );
4848 if ( isset( $params['heights'] ) ) {
4849 $ig->setHeights( $params['heights'] );
4852 wfRunHooks( 'BeforeParserrenderImageGallery', array( &$this, &$ig ) );
4854 $lines = StringUtils
::explode( "\n", $text );
4855 foreach ( $lines as $line ) {
4856 # match lines like these:
4857 # Image:someimage.jpg|This is some image
4859 preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
4861 if ( count( $matches ) == 0 ) {
4865 if ( strpos( $matches[0], '%' ) !== false ) {
4866 $matches[1] = rawurldecode( $matches[1] );
4868 $title = Title
::newFromText( $matches[1], NS_FILE
);
4869 if ( is_null( $title ) ) {
4870 # Bogus title. Ignore these so we don't bomb out later.
4877 if ( isset( $matches[3] ) ) {
4878 // look for an |alt= definition while trying not to break existing
4879 // captions with multiple pipes (|) in it, until a more sensible grammar
4880 // is defined for images in galleries
4882 $matches[3] = $this->recursiveTagParse( trim( $matches[3] ) );
4883 $parameterMatches = StringUtils
::explode('|', $matches[3]);
4884 $magicWordAlt = MagicWord
::get( 'img_alt' );
4885 $magicWordLink = MagicWord
::get( 'img_link' );
4887 foreach ( $parameterMatches as $parameterMatch ) {
4888 if ( $match = $magicWordAlt->matchVariableStartToEnd( $parameterMatch ) ) {
4889 $alt = $this->stripAltText( $match, false );
4891 elseif( $match = $magicWordLink->matchVariableStartToEnd( $parameterMatch ) ){
4892 $link = strip_tags($this->replaceLinkHoldersText($match));
4893 $chars = self
::EXT_LINK_URL_CLASS
;
4894 $prots = $this->mUrlProtocols
;
4895 //check to see if link matches an absolute url, if not then it must be a wiki link.
4896 if(!preg_match( "/^($prots)$chars+$/u", $link)){
4897 $localLinkTitle = Title
::newFromText($link);
4898 $link = $localLinkTitle->getLocalURL();
4902 // concatenate all other pipes
4903 $label .= '|' . $parameterMatch;
4906 // remove the first pipe
4907 $label = substr( $label, 1 );
4910 $ig->add( $title, $label, $alt ,$link);
4912 return $ig->toHTML();
4919 function getImageParams( $handler ) {
4921 $handlerClass = get_class( $handler );
4925 if ( !isset( $this->mImageParams
[$handlerClass] ) ) {
4926 # Initialise static lists
4927 static $internalParamNames = array(
4928 'horizAlign' => array( 'left', 'right', 'center', 'none' ),
4929 'vertAlign' => array( 'baseline', 'sub', 'super', 'top', 'text-top', 'middle',
4930 'bottom', 'text-bottom' ),
4931 'frame' => array( 'thumbnail', 'manualthumb', 'framed', 'frameless',
4932 'upright', 'border', 'link', 'alt' ),
4934 static $internalParamMap;
4935 if ( !$internalParamMap ) {
4936 $internalParamMap = array();
4937 foreach ( $internalParamNames as $type => $names ) {
4938 foreach ( $names as $name ) {
4939 $magicName = str_replace( '-', '_', "img_$name" );
4940 $internalParamMap[$magicName] = array( $type, $name );
4945 # Add handler params
4946 $paramMap = $internalParamMap;
4948 $handlerParamMap = $handler->getParamMap();
4949 foreach ( $handlerParamMap as $magic => $paramName ) {
4950 $paramMap[$magic] = array( 'handler', $paramName );
4953 $this->mImageParams
[$handlerClass] = $paramMap;
4954 $this->mImageParamsMagicArray
[$handlerClass] = new MagicWordArray( array_keys( $paramMap ) );
4956 return array( $this->mImageParams
[$handlerClass], $this->mImageParamsMagicArray
[$handlerClass] );
4960 * Parse image options text and use it to make an image
4962 * @param $title Title
4963 * @param $options String
4964 * @param $holders LinkHolderArray|bool
4965 * @return string HTML
4967 function makeImage( $title, $options, $holders = false ) {
4968 # Check if the options text is of the form "options|alt text"
4970 # * thumbnail make a thumbnail with enlarge-icon and caption, alignment depends on lang
4971 # * left no resizing, just left align. label is used for alt= only
4972 # * right same, but right aligned
4973 # * none same, but not aligned
4974 # * ___px scale to ___ pixels width, no aligning. e.g. use in taxobox
4975 # * center center the image
4976 # * frame Keep original image size, no magnify-button.
4977 # * framed Same as "frame"
4978 # * frameless like 'thumb' but without a frame. Keeps user preferences for width
4979 # * upright reduce width for upright images, rounded to full __0 px
4980 # * border draw a 1px border around the image
4981 # * alt Text for HTML alt attribute (defaults to empty)
4982 # * link Set the target of the image link. Can be external, interwiki, or local
4983 # vertical-align values (no % or length right now):
4993 $parts = StringUtils
::explode( "|", $options );
4995 # Give extensions a chance to select the file revision for us
4998 wfRunHooks( 'BeforeParserFetchFileAndTitle',
4999 array( $this, $title, &$options, &$descQuery ) );
5000 # Fetch and register the file (file title may be different via hooks)
5001 list( $file, $title ) = $this->fetchFileAndTitle( $title, $options );
5004 $handler = $file ?
$file->getHandler() : false;
5006 list( $paramMap, $mwArray ) = $this->getImageParams( $handler );
5009 $this->addTrackingCategory( 'broken-file-category' );
5012 # Process the input parameters
5014 $params = array( 'frame' => array(), 'handler' => array(),
5015 'horizAlign' => array(), 'vertAlign' => array() );
5016 foreach ( $parts as $part ) {
5017 $part = trim( $part );
5018 list( $magicName, $value ) = $mwArray->matchVariableStartToEnd( $part );
5020 if ( isset( $paramMap[$magicName] ) ) {
5021 list( $type, $paramName ) = $paramMap[$magicName];
5023 # Special case; width and height come in one variable together
5024 if ( $type === 'handler' && $paramName === 'width' ) {
5026 # (bug 13500) In both cases (width/height and width only),
5027 # permit trailing "px" for backward compatibility.
5028 if ( preg_match( '/^([0-9]*)x([0-9]*)\s*(?:px)?\s*$/', $value, $m ) ) {
5029 $width = intval( $m[1] );
5030 $height = intval( $m[2] );
5031 if ( $handler->validateParam( 'width', $width ) ) {
5032 $params[$type]['width'] = $width;
5035 if ( $handler->validateParam( 'height', $height ) ) {
5036 $params[$type]['height'] = $height;
5039 } elseif ( preg_match( '/^[0-9]*\s*(?:px)?\s*$/', $value ) ) {
5040 $width = intval( $value );
5041 if ( $handler->validateParam( 'width', $width ) ) {
5042 $params[$type]['width'] = $width;
5045 } # else no validation -- bug 13436
5047 if ( $type === 'handler' ) {
5048 # Validate handler parameter
5049 $validated = $handler->validateParam( $paramName, $value );
5051 # Validate internal parameters
5052 switch( $paramName ) {
5055 # @todo FIXME: Possibly check validity here for
5056 # manualthumb? downstream behavior seems odd with
5057 # missing manual thumbs.
5059 $value = $this->stripAltText( $value, $holders );
5062 $chars = self
::EXT_LINK_URL_CLASS
;
5063 $prots = $this->mUrlProtocols
;
5064 if ( $value === '' ) {
5065 $paramName = 'no-link';
5068 } elseif ( preg_match( "/^$prots/", $value ) ) {
5069 if ( preg_match( "/^($prots)$chars+$/u", $value, $m ) ) {
5070 $paramName = 'link-url';
5071 $this->mOutput
->addExternalLink( $value );
5072 if ( $this->mOptions
->getExternalLinkTarget() ) {
5073 $params[$type]['link-target'] = $this->mOptions
->getExternalLinkTarget();
5078 $linkTitle = Title
::newFromText( $value );
5080 $paramName = 'link-title';
5081 $value = $linkTitle;
5082 $this->mOutput
->addLink( $linkTitle );
5088 # Most other things appear to be empty or numeric...
5089 $validated = ( $value === false ||
is_numeric( trim( $value ) ) );
5094 $params[$type][$paramName] = $value;
5098 if ( !$validated ) {
5103 # Process alignment parameters
5104 if ( $params['horizAlign'] ) {
5105 $params['frame']['align'] = key( $params['horizAlign'] );
5107 if ( $params['vertAlign'] ) {
5108 $params['frame']['valign'] = key( $params['vertAlign'] );
5111 $params['frame']['caption'] = $caption;
5113 # Will the image be presented in a frame, with the caption below?
5114 $imageIsFramed = isset( $params['frame']['frame'] ) ||
5115 isset( $params['frame']['framed'] ) ||
5116 isset( $params['frame']['thumbnail'] ) ||
5117 isset( $params['frame']['manualthumb'] );
5119 # In the old days, [[Image:Foo|text...]] would set alt text. Later it
5120 # came to also set the caption, ordinary text after the image -- which
5121 # makes no sense, because that just repeats the text multiple times in
5122 # screen readers. It *also* came to set the title attribute.
5124 # Now that we have an alt attribute, we should not set the alt text to
5125 # equal the caption: that's worse than useless, it just repeats the
5126 # text. This is the framed/thumbnail case. If there's no caption, we
5127 # use the unnamed parameter for alt text as well, just for the time be-
5128 # ing, if the unnamed param is set and the alt param is not.
5130 # For the future, we need to figure out if we want to tweak this more,
5131 # e.g., introducing a title= parameter for the title; ignoring the un-
5132 # named parameter entirely for images without a caption; adding an ex-
5133 # plicit caption= parameter and preserving the old magic unnamed para-
5135 if ( $imageIsFramed ) { # Framed image
5136 if ( $caption === '' && !isset( $params['frame']['alt'] ) ) {
5137 # No caption or alt text, add the filename as the alt text so
5138 # that screen readers at least get some description of the image
5139 $params['frame']['alt'] = $title->getText();
5141 # Do not set $params['frame']['title'] because tooltips don't make sense
5143 } else { # Inline image
5144 if ( !isset( $params['frame']['alt'] ) ) {
5145 # No alt text, use the "caption" for the alt text
5146 if ( $caption !== '') {
5147 $params['frame']['alt'] = $this->stripAltText( $caption, $holders );
5149 # No caption, fall back to using the filename for the
5151 $params['frame']['alt'] = $title->getText();
5154 # Use the "caption" for the tooltip text
5155 $params['frame']['title'] = $this->stripAltText( $caption, $holders );
5158 wfRunHooks( 'ParserMakeImageParams', array( $title, $file, &$params, $this ) );
5160 # Linker does the rest
5161 $time = isset( $options['time'] ) ?
$options['time'] : false;
5162 $ret = Linker
::makeImageLink2( $title, $file, $params['frame'], $params['handler'],
5163 $time, $descQuery, $this->mOptions
->getThumbSize() );
5165 # Give the handler a chance to modify the parser object
5167 $handler->parserTransformHook( $this, $file );
5175 * @param $holders LinkHolderArray
5176 * @return mixed|String
5178 protected function stripAltText( $caption, $holders ) {
5179 # Strip bad stuff out of the title (tooltip). We can't just use
5180 # replaceLinkHoldersText() here, because if this function is called
5181 # from replaceInternalLinks2(), mLinkHolders won't be up-to-date.
5183 $tooltip = $holders->replaceText( $caption );
5185 $tooltip = $this->replaceLinkHoldersText( $caption );
5188 # make sure there are no placeholders in thumbnail attributes
5189 # that are later expanded to html- so expand them now and
5191 $tooltip = $this->mStripState
->unstripBoth( $tooltip );
5192 $tooltip = Sanitizer
::stripAllTags( $tooltip );
5198 * Set a flag in the output object indicating that the content is dynamic and
5199 * shouldn't be cached.
5201 function disableCache() {
5202 wfDebug( "Parser output marked as uncacheable.\n" );
5203 if ( !$this->mOutput
) {
5204 throw new MWException( __METHOD__
.
5205 " can only be called when actually parsing something" );
5207 $this->mOutput
->setCacheTime( -1 ); // old style, for compatibility
5208 $this->mOutput
->updateCacheExpiry( 0 ); // new style, for consistency
5212 * Callback from the Sanitizer for expanding items found in HTML attribute
5213 * values, so they can be safely tested and escaped.
5215 * @param $text String
5216 * @param $frame PPFrame
5219 function attributeStripCallback( &$text, $frame = false ) {
5220 $text = $this->replaceVariables( $text, $frame );
5221 $text = $this->mStripState
->unstripBoth( $text );
5230 function getTags() {
5231 return array_merge( array_keys( $this->mTransparentTagHooks
), array_keys( $this->mTagHooks
), array_keys( $this->mFunctionTagHooks
) );
5235 * Replace transparent tags in $text with the values given by the callbacks.
5237 * Transparent tag hooks are like regular XML-style tag hooks, except they
5238 * operate late in the transformation sequence, on HTML instead of wikitext.
5240 * @param $text string
5244 function replaceTransparentTags( $text ) {
5246 $elements = array_keys( $this->mTransparentTagHooks
);
5247 $text = self
::extractTagsAndParams( $elements, $text, $matches, $this->mUniqPrefix
);
5248 $replacements = array();
5250 foreach ( $matches as $marker => $data ) {
5251 list( $element, $content, $params, $tag ) = $data;
5252 $tagName = strtolower( $element );
5253 if ( isset( $this->mTransparentTagHooks
[$tagName] ) ) {
5254 $output = call_user_func_array( $this->mTransparentTagHooks
[$tagName], array( $content, $params, $this ) );
5258 $replacements[$marker] = $output;
5260 return strtr( $text, $replacements );
5264 * Break wikitext input into sections, and either pull or replace
5265 * some particular section's text.
5267 * External callers should use the getSection and replaceSection methods.
5269 * @param $text String: Page wikitext
5270 * @param $section String: a section identifier string of the form:
5271 * <flag1> - <flag2> - ... - <section number>
5273 * Currently the only recognised flag is "T", which means the target section number
5274 * was derived during a template inclusion parse, in other words this is a template
5275 * section edit link. If no flags are given, it was an ordinary section edit link.
5276 * This flag is required to avoid a section numbering mismatch when a section is
5277 * enclosed by <includeonly> (bug 6563).
5279 * The section number 0 pulls the text before the first heading; other numbers will
5280 * pull the given section along with its lower-level subsections. If the section is
5281 * not found, $mode=get will return $newtext, and $mode=replace will return $text.
5283 * Section 0 is always considered to exist, even if it only contains the empty
5284 * string. If $text is the empty string and section 0 is replaced, $newText is
5287 * @param $mode String: one of "get" or "replace"
5288 * @param $newText String: replacement text for section data.
5289 * @return String: for "get", the extracted section text.
5290 * for "replace", the whole page with the section replaced.
5292 private function extractSections( $text, $section, $mode, $newText='' ) {
5293 global $wgTitle; # not generally used but removes an ugly failure mode
5294 $this->startParse( $wgTitle, new ParserOptions
, self
::OT_PLAIN
, true );
5296 $frame = $this->getPreprocessor()->newFrame();
5298 # Process section extraction flags
5300 $sectionParts = explode( '-', $section );
5301 $sectionIndex = array_pop( $sectionParts );
5302 foreach ( $sectionParts as $part ) {
5303 if ( $part === 'T' ) {
5304 $flags |
= self
::PTD_FOR_INCLUSION
;
5308 # Check for empty input
5309 if ( strval( $text ) === '' ) {
5310 # Only sections 0 and T-0 exist in an empty document
5311 if ( $sectionIndex == 0 ) {
5312 if ( $mode === 'get' ) {
5318 if ( $mode === 'get' ) {
5326 # Preprocess the text
5327 $root = $this->preprocessToDom( $text, $flags );
5329 # <h> nodes indicate section breaks
5330 # They can only occur at the top level, so we can find them by iterating the root's children
5331 $node = $root->getFirstChild();
5333 # Find the target section
5334 if ( $sectionIndex == 0 ) {
5335 # Section zero doesn't nest, level=big
5336 $targetLevel = 1000;
5339 if ( $node->getName() === 'h' ) {
5340 $bits = $node->splitHeading();
5341 if ( $bits['i'] == $sectionIndex ) {
5342 $targetLevel = $bits['level'];
5346 if ( $mode === 'replace' ) {
5347 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5349 $node = $node->getNextSibling();
5355 if ( $mode === 'get' ) {
5362 # Find the end of the section, including nested sections
5364 if ( $node->getName() === 'h' ) {
5365 $bits = $node->splitHeading();
5366 $curLevel = $bits['level'];
5367 if ( $bits['i'] != $sectionIndex && $curLevel <= $targetLevel ) {
5371 if ( $mode === 'get' ) {
5372 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5374 $node = $node->getNextSibling();
5377 # Write out the remainder (in replace mode only)
5378 if ( $mode === 'replace' ) {
5379 # Output the replacement text
5380 # Add two newlines on -- trailing whitespace in $newText is conventionally
5381 # stripped by the editor, so we need both newlines to restore the paragraph gap
5382 # Only add trailing whitespace if there is newText
5383 if ( $newText != "" ) {
5384 $outText .= $newText . "\n\n";
5388 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5389 $node = $node->getNextSibling();
5393 if ( is_string( $outText ) ) {
5394 # Re-insert stripped tags
5395 $outText = rtrim( $this->mStripState
->unstripBoth( $outText ) );
5402 * This function returns the text of a section, specified by a number ($section).
5403 * A section is text under a heading like == Heading == or \<h1\>Heading\</h1\>, or
5404 * the first section before any such heading (section 0).
5406 * If a section contains subsections, these are also returned.
5408 * @param $text String: text to look in
5409 * @param $section String: section identifier
5410 * @param $deftext String: default to return if section is not found
5411 * @return string text of the requested section
5413 public function getSection( $text, $section, $deftext='' ) {
5414 return $this->extractSections( $text, $section, "get", $deftext );
5418 * This function returns $oldtext after the content of the section
5419 * specified by $section has been replaced with $text. If the target
5420 * section does not exist, $oldtext is returned unchanged.
5422 * @param $oldtext String: former text of the article
5423 * @param $section int section identifier
5424 * @param $text String: replacing text
5425 * @return String: modified text
5427 public function replaceSection( $oldtext, $section, $text ) {
5428 return $this->extractSections( $oldtext, $section, "replace", $text );
5432 * Get the ID of the revision we are parsing
5434 * @return Mixed: integer or null
5436 function getRevisionId() {
5437 return $this->mRevisionId
;
5441 * Get the revision object for $this->mRevisionId
5443 * @return Revision|null either a Revision object or null
5445 protected function getRevisionObject() {
5446 if ( !is_null( $this->mRevisionObject
) ) {
5447 return $this->mRevisionObject
;
5449 if ( is_null( $this->mRevisionId
) ) {
5453 $this->mRevisionObject
= Revision
::newFromId( $this->mRevisionId
);
5454 return $this->mRevisionObject
;
5458 * Get the timestamp associated with the current revision, adjusted for
5459 * the default server-local timestamp
5461 function getRevisionTimestamp() {
5462 if ( is_null( $this->mRevisionTimestamp
) ) {
5463 wfProfileIn( __METHOD__
);
5467 $revObject = $this->getRevisionObject();
5468 $timestamp = $revObject ?
$revObject->getTimestamp() : wfTimestampNow();
5470 # The cryptic '' timezone parameter tells to use the site-default
5471 # timezone offset instead of the user settings.
5473 # Since this value will be saved into the parser cache, served
5474 # to other users, and potentially even used inside links and such,
5475 # it needs to be consistent for all visitors.
5476 $this->mRevisionTimestamp
= $wgContLang->userAdjust( $timestamp, '' );
5478 wfProfileOut( __METHOD__
);
5480 return $this->mRevisionTimestamp
;
5484 * Get the name of the user that edited the last revision
5486 * @return String: user name
5488 function getRevisionUser() {
5489 if( is_null( $this->mRevisionUser
) ) {
5490 $revObject = $this->getRevisionObject();
5492 # if this template is subst: the revision id will be blank,
5493 # so just use the current user's name
5495 $this->mRevisionUser
= $revObject->getUserText();
5496 } elseif( $this->ot
['wiki'] ||
$this->mOptions
->getIsPreview() ) {
5497 $this->mRevisionUser
= $this->getUser()->getName();
5500 return $this->mRevisionUser
;
5504 * Mutator for $mDefaultSort
5506 * @param $sort string New value
5508 public function setDefaultSort( $sort ) {
5509 $this->mDefaultSort
= $sort;
5510 $this->mOutput
->setProperty( 'defaultsort', $sort );
5514 * Accessor for $mDefaultSort
5515 * Will use the empty string if none is set.
5517 * This value is treated as a prefix, so the
5518 * empty string is equivalent to sorting by
5523 public function getDefaultSort() {
5524 if ( $this->mDefaultSort
!== false ) {
5525 return $this->mDefaultSort
;
5532 * Accessor for $mDefaultSort
5533 * Unlike getDefaultSort(), will return false if none is set
5535 * @return string or false
5537 public function getCustomDefaultSort() {
5538 return $this->mDefaultSort
;
5542 * Try to guess the section anchor name based on a wikitext fragment
5543 * presumably extracted from a heading, for example "Header" from
5546 * @param $text string
5550 public function guessSectionNameFromWikiText( $text ) {
5551 # Strip out wikitext links(they break the anchor)
5552 $text = $this->stripSectionName( $text );
5553 $text = Sanitizer
::normalizeSectionNameWhitespace( $text );
5554 return '#' . Sanitizer
::escapeId( $text, 'noninitial' );
5558 * Same as guessSectionNameFromWikiText(), but produces legacy anchors
5559 * instead. For use in redirects, since IE6 interprets Redirect: headers
5560 * as something other than UTF-8 (apparently?), resulting in breakage.
5562 * @param $text String: The section name
5563 * @return string An anchor
5565 public function guessLegacySectionNameFromWikiText( $text ) {
5566 # Strip out wikitext links(they break the anchor)
5567 $text = $this->stripSectionName( $text );
5568 $text = Sanitizer
::normalizeSectionNameWhitespace( $text );
5569 return '#' . Sanitizer
::escapeId( $text, array( 'noninitial', 'legacy' ) );
5573 * Strips a text string of wikitext for use in a section anchor
5575 * Accepts a text string and then removes all wikitext from the
5576 * string and leaves only the resultant text (i.e. the result of
5577 * [[User:WikiSysop|Sysop]] would be "Sysop" and the result of
5578 * [[User:WikiSysop]] would be "User:WikiSysop") - this is intended
5579 * to create valid section anchors by mimicing the output of the
5580 * parser when headings are parsed.
5582 * @param $text String: text string to be stripped of wikitext
5583 * for use in a Section anchor
5584 * @return string Filtered text string
5586 public function stripSectionName( $text ) {
5587 # Strip internal link markup
5588 $text = preg_replace( '/\[\[:?([^[|]+)\|([^[]+)\]\]/', '$2', $text );
5589 $text = preg_replace( '/\[\[:?([^[]+)\|?\]\]/', '$1', $text );
5591 # Strip external link markup
5592 # @todo FIXME: Not tolerant to blank link text
5593 # I.E. [http://www.mediawiki.org] will render as [1] or something depending
5594 # on how many empty links there are on the page - need to figure that out.
5595 $text = preg_replace( '/\[(?:' . $this->mUrlProtocols
. ')([^ ]+?) ([^[]+)\]/', '$2', $text );
5597 # Parse wikitext quotes (italics & bold)
5598 $text = $this->doQuotes( $text );
5601 $text = StringUtils
::delimiterReplace( '<', '>', '', $text );
5606 * strip/replaceVariables/unstrip for preprocessor regression testing
5608 * @param $text string
5609 * @param $title Title
5610 * @param $options ParserOptions
5611 * @param $outputType int
5615 function testSrvus( $text, Title
$title, ParserOptions
$options, $outputType = self
::OT_HTML
) {
5616 $this->startParse( $title, $options, $outputType, true );
5618 $text = $this->replaceVariables( $text );
5619 $text = $this->mStripState
->unstripBoth( $text );
5620 $text = Sanitizer
::removeHTMLtags( $text );
5625 * @param $text string
5626 * @param $title Title
5627 * @param $options ParserOptions
5630 function testPst( $text, Title
$title, ParserOptions
$options ) {
5631 return $this->preSaveTransform( $text, $title, $options->getUser(), $options );
5636 * @param $title Title
5637 * @param $options ParserOptions
5640 function testPreprocess( $text, Title
$title, ParserOptions
$options ) {
5641 return $this->testSrvus( $text, $title, $options, self
::OT_PREPROCESS
);
5645 * Call a callback function on all regions of the given text that are not
5646 * inside strip markers, and replace those regions with the return value
5647 * of the callback. For example, with input:
5651 * This will call the callback function twice, with 'aaa' and 'bbb'. Those
5652 * two strings will be replaced with the value returned by the callback in
5660 function markerSkipCallback( $s, $callback ) {
5663 while ( $i < strlen( $s ) ) {
5664 $markerStart = strpos( $s, $this->mUniqPrefix
, $i );
5665 if ( $markerStart === false ) {
5666 $out .= call_user_func( $callback, substr( $s, $i ) );
5669 $out .= call_user_func( $callback, substr( $s, $i, $markerStart - $i ) );
5670 $markerEnd = strpos( $s, self
::MARKER_SUFFIX
, $markerStart );
5671 if ( $markerEnd === false ) {
5672 $out .= substr( $s, $markerStart );
5675 $markerEnd +
= strlen( self
::MARKER_SUFFIX
);
5676 $out .= substr( $s, $markerStart, $markerEnd - $markerStart );
5685 * Remove any strip markers found in the given text.
5687 * @param $text Input string
5690 function killMarkers( $text ) {
5691 return $this->mStripState
->killMarkers( $text );
5695 * Save the parser state required to convert the given half-parsed text to
5696 * HTML. "Half-parsed" in this context means the output of
5697 * recursiveTagParse() or internalParse(). This output has strip markers
5698 * from replaceVariables (extensionSubstitution() etc.), and link
5699 * placeholders from replaceLinkHolders().
5701 * Returns an array which can be serialized and stored persistently. This
5702 * array can later be loaded into another parser instance with
5703 * unserializeHalfParsedText(). The text can then be safely incorporated into
5704 * the return value of a parser hook.
5706 * @param $text string
5710 function serializeHalfParsedText( $text ) {
5711 wfProfileIn( __METHOD__
);
5714 'version' => self
::HALF_PARSED_VERSION
,
5715 'stripState' => $this->mStripState
->getSubState( $text ),
5716 'linkHolders' => $this->mLinkHolders
->getSubArray( $text )
5718 wfProfileOut( __METHOD__
);
5723 * Load the parser state given in the $data array, which is assumed to
5724 * have been generated by serializeHalfParsedText(). The text contents is
5725 * extracted from the array, and its markers are transformed into markers
5726 * appropriate for the current Parser instance. This transformed text is
5727 * returned, and can be safely included in the return value of a parser
5730 * If the $data array has been stored persistently, the caller should first
5731 * check whether it is still valid, by calling isValidHalfParsedText().
5733 * @param $data array Serialized data
5736 function unserializeHalfParsedText( $data ) {
5737 if ( !isset( $data['version'] ) ||
$data['version'] != self
::HALF_PARSED_VERSION
) {
5738 throw new MWException( __METHOD__
.': invalid version' );
5741 # First, extract the strip state.
5742 $texts = array( $data['text'] );
5743 $texts = $this->mStripState
->merge( $data['stripState'], $texts );
5745 # Now renumber links
5746 $texts = $this->mLinkHolders
->mergeForeign( $data['linkHolders'], $texts );
5748 # Should be good to go.
5753 * Returns true if the given array, presumed to be generated by
5754 * serializeHalfParsedText(), is compatible with the current version of the
5757 * @param $data Array
5761 function isValidHalfParsedText( $data ) {
5762 return isset( $data['version'] ) && $data['version'] == self
::HALF_PARSED_VERSION
;