4 * File for Parser and related classes
11 * Variable substitution O(N^2) attack
13 * Without countermeasures, it would be possible to attack the parser by saving
14 * a page filled with a large number of inclusions of large pages. The size of
15 * the generated page would be proportional to the square of the input size.
16 * Hence, we limit the number of inclusions of any given page, thus bringing any
17 * attack back to O(N).
19 define( 'MAX_INCLUDE_REPEAT', 100 );
20 define( 'MAX_INCLUDE_SIZE', 1000000 ); // 1 Million
22 # Allowed values for $mOutputType
23 define( 'OT_HTML', 1 );
24 define( 'OT_WIKI', 2 );
25 define( 'OT_MSG' , 3 );
27 # string parameter for extractTags which will cause it
28 # to strip HTML comments in addition to regular
29 # <XML>-style tags. This should not be anything we
30 # may want to use in wikisyntax
31 define( 'STRIP_COMMENTS', 'HTMLCommentStrip' );
33 # prefix for escaping, used in two functions at least
34 define( 'UNIQ_PREFIX', 'NaodW29');
36 # Constants needed for external link processing
37 define( 'URL_PROTOCOLS', 'http|https|ftp|irc|gopher|news|mailto' );
38 define( 'HTTP_PROTOCOLS', 'http|https' );
39 # Everything except bracket, space, or control characters
40 define( 'EXT_LINK_URL_CLASS', '[^]\\x00-\\x20\\x7F]' );
41 define( 'INVERSE_EXT_LINK_URL_CLASS', '[\]\\x00-\\x20\\x7F]' );
43 define( 'EXT_LINK_TEXT_CLASS', '[^\]\\x00-\\x1F\\x7F]' );
44 define( 'EXT_IMAGE_FNAME_CLASS', '[A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]' );
45 define( 'EXT_IMAGE_EXTENSIONS', 'gif|png|jpg|jpeg' );
46 define( 'EXT_LINK_BRACKETED', '/\[(('.URL_PROTOCOLS
.'):'.EXT_LINK_URL_CLASS
.'+) *('.EXT_LINK_TEXT_CLASS
.'*?)\]/S' );
47 define( 'EXT_IMAGE_REGEX',
48 '/^('.HTTP_PROTOCOLS
.':)'. # Protocol
49 '('.EXT_LINK_URL_CLASS
.'+)\\/'. # Hostname and path
50 '('.EXT_IMAGE_FNAME_CLASS
.'+)\\.((?i)'.EXT_IMAGE_EXTENSIONS
.')$/S' # Filename
56 * Processes wiki markup
59 * There are three main entry points into the Parser class:
61 * produces HTML output
63 * produces altered wiki markup.
65 * performs brace substitution on MediaWiki messages
68 * objects: $wgLang, $wgDateFormatter, $wgLinkCache, $wgCurParser
70 * NOT $wgArticle, $wgUser or $wgTitle. Keep them away!
73 * $wgUseTex*, $wgUseDynamicDates*, $wgInterwikiMagic*,
74 * $wgNamespacesWithSubpages, $wgAllowExternalImages*,
77 * * only within ParserOptions
90 # Cleared with clearState():
91 var $mOutput, $mAutonumber, $mDTopen, $mStripState = array();
92 var $mVariables, $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
95 var $mOptions, $mTitle, $mOutputType,
96 $mTemplates, // cache of already loaded templates, avoids
97 // multiple SQL queries for the same string
98 $mTemplatePath; // stores an unsorted hash of all the templates already loaded
99 // in this path. Used for loop detection.
109 $this->mTemplates
= array();
110 $this->mTemplatePath
= array();
111 $this->mTagHooks
= array();
120 function clearState() {
121 $this->mOutput
= new ParserOutput
;
122 $this->mAutonumber
= 0;
123 $this->mLastSection
= "";
124 $this->mDTopen
= false;
125 $this->mVariables
= false;
126 $this->mIncludeCount
= array();
127 $this->mStripState
= array();
128 $this->mArgStack
= array();
129 $this->mInPre
= false;
133 * First pass--just handle <nowiki> sections, pass the rest off
134 * to internalParse() which does all the real work.
137 * @return ParserOutput a ParserOutput
139 function parse( $text, &$title, $options, $linestart = true, $clearState = true ) {
141 $fname = 'Parser::parse';
142 wfProfileIn( $fname );
148 $this->mOptions
= $options;
149 $this->mTitle
=& $title;
150 $this->mOutputType
= OT_HTML
;
153 $text = $this->strip( $text, $this->mStripState
);
154 $text = $this->internalParse( $text, $linestart );
155 $text = $this->unstrip( $text, $this->mStripState
);
156 # Clean up special characters, only run once, next-to-last before doBlockLevels
159 # french spaces, last one Guillemet-left
160 # only if there is something before the space
161 '/(.) (?=\\?|:|;|!|\\302\\273)/i' => '\\1 \\2',
162 # french spaces, Guillemet-right
163 "/(\\302\\253) /i"=>"\\1 ",
164 '/<hr *>/i' => '<hr />',
165 '/<br *>/i' => '<br />',
166 '/<center *>/i' => '<div class="center">',
167 '/<\\/center *>/i' => '</div>',
168 # Clean up spare ampersands; note that we probably ought to be
169 # more careful about named entities.
170 '/&(?!:amp;|#[Xx][0-9A-fa-f]+;|#[0-9]+;|[a-zA-Z0-9]+;)/' => '&'
172 $text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
175 # french spaces, last one Guillemet-left
176 '/ (\\?|:|;|!|\\302\\273)/i' => ' \\1',
177 # french spaces, Guillemet-right
178 '/(\\302\\253) /i' => '\\1 ',
179 '/<center *>/i' => '<div class="center">',
180 '/<\\/center *>/i' => '</div>'
182 $text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
185 $text = $this->doBlockLevels( $text, $linestart );
186 $text = $this->unstripNoWiki( $text, $this->mStripState
);
187 $this->mOutput
->setText( $text );
188 wfProfileOut( $fname );
189 return $this->mOutput
;
193 * Get a random string
198 function getRandomString() {
199 return dechex(mt_rand(0, 0x7fffffff)) . dechex(mt_rand(0, 0x7fffffff));
203 * Replaces all occurrences of <$tag>content</$tag> in the text
204 * with a random marker and returns the new text. the output parameter
205 * $content will be an associative array filled with data on the form
206 * $unique_marker => content.
208 * If $content is already set, the additional entries will be appended
209 * If $tag is set to STRIP_COMMENTS, the function will extract
210 * <!-- HTML comments -->
215 function extractTags($tag, $text, &$content, $uniq_prefix = ''){
216 $rnd = $uniq_prefix . '-' . $tag . Parser
::getRandomString();
223 while ( '' != $text ) {
224 if($tag==STRIP_COMMENTS
) {
225 $p = preg_split( '/<!--/i', $text, 2 );
227 $p = preg_split( "/<\\s*$tag\\s*>/i", $text, 2 );
230 if ( ( count( $p ) < 2 ) ||
( '' == $p[1] ) ) {
233 if($tag==STRIP_COMMENTS
) {
234 $q = preg_split( '/-->/i', $p[1], 2 );
236 $q = preg_split( "/<\\/\\s*$tag\\s*>/i", $p[1], 2 );
238 $marker = $rnd . sprintf('%08X', $n++
);
239 $content[$marker] = $q[0];
240 $stripped .= $marker;
248 * Strips and renders nowiki, pre, math, hiero
249 * If $render is set, performs necessary rendering operations on plugins
250 * Returns the text, and fills an array with data needed in unstrip()
251 * If the $state is already a valid strip state, it adds to the state
253 * @param bool $stripcomments when set, HTML comments <!-- like this -->
254 * will be stripped in addition to other tags. This is important
255 * for section editing, where these comments cause confusion when
256 * counting the sections in the wikisource
260 function strip( $text, &$state, $stripcomments = false ) {
261 $render = ($this->mOutputType
== OT_HTML
);
262 $html_content = array();
263 $nowiki_content = array();
264 $math_content = array();
265 $pre_content = array();
266 $comment_content = array();
267 $ext_content = array();
269 # Replace any instances of the placeholders
270 $uniq_prefix = UNIQ_PREFIX
;
271 #$text = str_replace( $uniq_prefix, wfHtmlEscapeFirst( $uniq_prefix ), $text );
274 global $wgRawHtml, $wgWhitelistEdit;
275 if( $wgRawHtml && $wgWhitelistEdit ) {
276 $text = Parser
::extractTags('html', $text, $html_content, $uniq_prefix);
277 foreach( $html_content as $marker => $content ) {
279 # Raw and unchecked for validity.
280 $html_content[$marker] = $content;
282 $html_content[$marker] = '<html>'.$content.'</html>';
288 $text = Parser
::extractTags('nowiki', $text, $nowiki_content, $uniq_prefix);
289 foreach( $nowiki_content as $marker => $content ) {
291 $nowiki_content[$marker] = wfEscapeHTMLTagsOnly( $content );
293 $nowiki_content[$marker] = '<nowiki>'.$content.'</nowiki>';
298 $text = Parser
::extractTags('math', $text, $math_content, $uniq_prefix);
299 foreach( $math_content as $marker => $content ){
301 if( $this->mOptions
->getUseTeX() ) {
302 $math_content[$marker] = renderMath( $content );
304 $math_content[$marker] = '<math>'.$content.'<math>';
307 $math_content[$marker] = '<math>'.$content.'</math>';
312 $text = Parser
::extractTags('pre', $text, $pre_content, $uniq_prefix);
313 foreach( $pre_content as $marker => $content ){
315 $pre_content[$marker] = '<pre>' . wfEscapeHTMLTagsOnly( $content ) . '</pre>';
317 $pre_content[$marker] = '<pre>'.$content.'</pre>';
323 $text = Parser
::extractTags(STRIP_COMMENTS
, $text, $comment_content, $uniq_prefix);
324 foreach( $comment_content as $marker => $content ){
325 $comment_content[$marker] = '<!--'.$content.'-->';
330 foreach ( $this->mTagHooks
as $tag => $callback ) {
331 $ext_contents[$tag] = array();
332 $text = Parser
::extractTags( $tag, $text, $ext_content[$tag], $uniq_prefix );
333 foreach( $ext_content[$tag] as $marker => $content ) {
335 $ext_content[$tag][$marker] = $callback( $content );
337 $ext_content[$tag][$marker] = "<$tag>$content</$tag>";
342 # Merge state with the pre-existing state, if there is one
344 $state['html'] = $state['html'] +
$html_content;
345 $state['nowiki'] = $state['nowiki'] +
$nowiki_content;
346 $state['math'] = $state['math'] +
$math_content;
347 $state['pre'] = $state['pre'] +
$pre_content;
348 $state['comment'] = $state['comment'] +
$comment_content;
350 foreach( $ext_content as $tag => $array ) {
351 if ( array_key_exists( $tag, $state ) ) {
352 $state[$tag] = $state[$tag] +
$array;
357 'html' => $html_content,
358 'nowiki' => $nowiki_content,
359 'math' => $math_content,
360 'pre' => $pre_content,
361 'comment' => $comment_content,
368 * restores pre, math, and heiro removed by strip()
370 * always call unstripNoWiki() after this one
373 function unstrip( $text, &$state ) {
374 # Must expand in reverse order, otherwise nested tags will be corrupted
375 $contentDict = end( $state );
376 for ( $contentDict = end( $state ); $contentDict !== false; $contentDict = prev( $state ) ) {
377 if( key($state) != 'nowiki' && key($state) != 'html') {
378 for ( $content = end( $contentDict ); $content !== false; $content = prev( $contentDict ) ) {
379 $text = str_replace( key( $contentDict ), $content, $text );
388 * always call this after unstrip() to preserve the order
392 function unstripNoWiki( $text, &$state ) {
393 # Must expand in reverse order, otherwise nested tags will be corrupted
394 for ( $content = end($state['nowiki']); $content !== false; $content = prev( $state['nowiki'] ) ) {
395 $text = str_replace( key( $state['nowiki'] ), $content, $text );
400 for ( $content = end($state['html']); $content !== false; $content = prev( $state['html'] ) ) {
401 $text = str_replace( key( $state['html'] ), $content, $text );
409 * Add an item to the strip state
410 * Returns the unique tag which must be inserted into the stripped text
411 * The tag will be replaced with the original text in unstrip()
415 function insertStripItem( $text, &$state ) {
416 $rnd = UNIQ_PREFIX
. '-item' . Parser
::getRandomString();
425 $state['item'][$rnd] = $text;
430 * Return allowed HTML attributes
434 function getHTMLattrs () {
435 $htmlattrs = array( # Allowed attributes--no scripting, etc.
436 'title', 'align', 'lang', 'dir', 'width', 'height',
437 'bgcolor', 'clear', /* BR */ 'noshade', /* HR */
438 'cite', /* BLOCKQUOTE, Q */ 'size', 'face', 'color',
439 /* FONT */ 'type', 'start', 'value', 'compact',
440 /* For various lists, mostly deprecated but safe */
441 'summary', 'width', 'border', 'frame', 'rules',
442 'cellspacing', 'cellpadding', 'valign', 'char',
443 'charoff', 'colgroup', 'col', 'span', 'abbr', 'axis',
444 'headers', 'scope', 'rowspan', 'colspan', /* Tables */
445 'id', 'class', 'name', 'style' /* For CSS */
451 * Remove non approved attributes and javascript in css
455 function fixTagAttributes ( $t ) {
456 if ( trim ( $t ) == '' ) return '' ; # Saves runtime ;-)
457 $htmlattrs = $this->getHTMLattrs() ;
459 # Strip non-approved attributes from the tag
461 '/(\\w+)(\\s*=\\s*([^\\s\">]+|\"[^\">]*\"))?/e',
462 "(in_array(strtolower(\"\$1\"),\$htmlattrs)?(\"\$1\".((\"x\$3\" != \"x\")?\"=\$3\":'')):'')",
465 $t = str_replace ( '<></>' , '' , $t ) ; # This should fix bug 980557
467 # Strip javascript "expression" from stylesheets. Brute force approach:
468 # If anythin offensive is found, all attributes of the HTML tag are dropped
471 '/style\\s*=.*(expression|tps*:\/\/|url\\s*\().*/is',
472 wfMungeToUtf8( $t ) ) )
481 * interface with html tidy, used if $wgUseTidy = true
486 function tidy ( $text ) {
487 global $wgTidyConf, $wgTidyBin, $wgTidyOpts;
488 global $wgInputEncoding, $wgOutputEncoding;
489 $fname = 'Parser::tidy';
490 wfProfileIn( $fname );
494 switch(strtoupper($wgOutputEncoding)) {
496 $opts .= ($wgInputEncoding == $wgOutputEncoding)?
' -latin1':' -raw';
499 $opts .= ($wgInputEncoding == $wgOutputEncoding)?
' -utf8':' -raw';
505 $wrappedtext = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'.
506 ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>'.
507 '<head><title>test</title></head><body>'.$text.'</body></html>';
508 $descriptorspec = array(
509 0 => array('pipe', 'r'),
510 1 => array('pipe', 'w'),
511 2 => array('file', '/dev/null', 'a')
513 $process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes);
514 if (is_resource($process)) {
515 fwrite($pipes[0], $wrappedtext);
517 while (!feof($pipes[1])) {
518 $cleansource .= fgets($pipes[1], 1024);
521 $return_value = proc_close($process);
524 wfProfileOut( $fname );
526 if( $cleansource == '' && $text != '') {
527 wfDebug( "Tidy error detected!\n" );
528 return $text . "\n<!-- Tidy found serious XHTML errors -->\n";
535 * parse the wiki syntax used to render tables
539 function doTableStuff ( $t ) {
540 $fname = 'Parser::doTableStuff';
541 wfProfileIn( $fname );
543 $t = explode ( "\n" , $t ) ;
544 $td = array () ; # Is currently a td tag open?
545 $ltd = array () ; # Was it TD or TH?
546 $tr = array () ; # Is currently a tr tag open?
547 $ltr = array () ; # tr attributes
548 $indent_level = 0; # indent level of the table
549 foreach ( $t AS $k => $x )
552 $fc = substr ( $x , 0 , 1 ) ;
553 if ( preg_match( '/^(:*)\{\|(.*)$/', $x, $matches ) ) {
554 $indent_level = strlen( $matches[1] );
556 str_repeat( '<dl><dd>', $indent_level ) .
557 '<table ' . $this->fixTagAttributes ( $matches[2] ) . '>' ;
558 array_push ( $td , false ) ;
559 array_push ( $ltd , '' ) ;
560 array_push ( $tr , false ) ;
561 array_push ( $ltr , '' ) ;
563 else if ( count ( $td ) == 0 ) { } # Don't do any of the following
564 else if ( '|}' == substr ( $x , 0 , 2 ) ) {
566 $l = array_pop ( $ltd ) ;
567 if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
568 if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
570 $t[$k] = $z . str_repeat( '</dd></dl>', $indent_level );
572 else if ( '|-' == substr ( $x , 0 , 2 ) ) { # Allows for |---------------
573 $x = substr ( $x , 1 ) ;
574 while ( $x != '' && substr ( $x , 0 , 1 ) == '-' ) $x = substr ( $x , 1 ) ;
576 $l = array_pop ( $ltd ) ;
577 if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
578 if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
581 array_push ( $tr , false ) ;
582 array_push ( $td , false ) ;
583 array_push ( $ltd , '' ) ;
584 array_push ( $ltr , $this->fixTagAttributes ( $x ) ) ;
586 else if ( '|' == $fc ||
'!' == $fc ||
'|+' == substr ( $x , 0 , 2 ) ) { # Caption
587 if ( '|+' == substr ( $x , 0 , 2 ) ) {
589 $x = substr ( $x , 1 ) ;
591 $after = substr ( $x , 1 ) ;
592 if ( $fc == '!' ) $after = str_replace ( '!!' , '||' , $after ) ;
593 $after = explode ( '||' , $after ) ;
595 foreach ( $after AS $theline )
600 $tra = array_pop ( $ltr ) ;
601 if ( !array_pop ( $tr ) ) $z = '<tr '.$tra.">\n" ;
602 array_push ( $tr , true ) ;
603 array_push ( $ltr , '' ) ;
606 $l = array_pop ( $ltd ) ;
607 if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
608 if ( $fc == '|' ) $l = 'td' ;
609 else if ( $fc == '!' ) $l = 'th' ;
610 else if ( $fc == '+' ) $l = 'caption' ;
612 array_push ( $ltd , $l ) ;
613 $y = explode ( '|' , $theline , 2 ) ;
614 if ( count ( $y ) == 1 ) $y = "{$z}<{$l}>{$y[0]}" ;
615 else $y = $y = "{$z}<{$l} ".$this->fixTagAttributes($y[0]).">{$y[1]}" ;
617 array_push ( $td , true ) ;
622 # Closing open td, tr && table
623 while ( count ( $td ) > 0 )
625 if ( array_pop ( $td ) ) $t[] = '</td>' ;
626 if ( array_pop ( $tr ) ) $t[] = '</tr>' ;
630 $t = implode ( "\n" , $t ) ;
631 # $t = $this->removeHTMLtags( $t );
632 wfProfileOut( $fname );
637 * Helper function for parse() that transforms wiki markup into
638 * HTML. Only called for $mOutputType == OT_HTML.
642 function internalParse( $text, $linestart, $args = array(), $isMain=true ) {
645 $fname = 'Parser::internalParse';
646 wfProfileIn( $fname );
648 $text = $this->removeHTMLtags( $text );
649 $text = $this->replaceVariables( $text, $args );
651 $text = $wgContLang->convert($text);
653 $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
655 $text = $this->doHeadings( $text );
656 if($this->mOptions
->getUseDynamicDates()) {
657 global $wgDateFormatter;
658 $text = $wgDateFormatter->reformat( $this->mOptions
->getDateFormat(), $text );
660 $text = $this->doAllQuotes( $text );
661 $text = $this->doMagicLinks( $text );
662 $text = $this->replaceInternalLinks ( $text );
663 # Another call to replace links and images inside captions of images
664 $text = $this->replaceInternalLinks ( $text );
665 $text = $this->replaceExternalLinks( $text );
666 $text = $this->doTableStuff( $text );
667 $text = $this->formatHeadings( $text, $isMain );
668 $sk =& $this->mOptions
->getSkin();
669 $text = $sk->transformContent( $text );
671 wfProfileOut( $fname );
676 * Replace special strings like "ISBN xxx" and "RFC xxx" with
677 * magic external links.
681 function &doMagicLinks( &$text ) {
682 global $wgUseGeoMode;
683 $text = $this->magicISBN( $text );
684 if ( isset( $wgUseGeoMode ) && $wgUseGeoMode ) {
685 $text = $this->magicGEO( $text );
687 $text = $this->magicRFC( $text );
692 * Parse ^^ tokens and return html
696 function doExponent ( $text ) {
697 $fname = 'Parser::doExponent';
698 wfProfileIn( $fname);
699 $text = preg_replace('/\^\^(.*)\^\^/','<small><sup>\\1</sup></small>', $text);
700 wfProfileOut( $fname);
705 * Parse headers and return html
709 function doHeadings( $text ) {
710 $fname = 'Parser::doHeadings';
711 wfProfileIn( $fname );
712 for ( $i = 6; $i >= 1; --$i ) {
713 $h = substr( '======', 0, $i );
714 $text = preg_replace( "/^{$h}(.+){$h}(\\s|$)/m",
715 "<h{$i}>\\1</h{$i}>\\2", $text );
717 wfProfileOut( $fname );
722 * Replace single quotes with HTML markup
724 * @return string the altered text
726 function doAllQuotes( $text ) {
727 $fname = 'Parser::doAllQuotes';
728 wfProfileIn( $fname );
730 $lines = explode( "\n", $text );
731 foreach ( $lines as $line ) {
732 $outtext .= $this->doQuotes ( $line ) . "\n";
734 $outtext = substr($outtext, 0,-1);
735 wfProfileOut( $fname );
740 * Helper function for doAllQuotes()
743 function doQuotes( $text ) {
744 $arr = preg_split ("/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
745 if (count ($arr) == 1)
749 # First, do some preliminary work. This may shift some apostrophes from
750 # being mark-up to being text. It also counts the number of occurrences
751 # of bold and italics mark-ups.
759 # If there are ever four apostrophes, assume the first is supposed to
760 # be text, and the remaining three constitute mark-up for bold text.
761 if (strlen ($arr[$i]) == 4)
766 # If there are more than 5 apostrophes in a row, assume they're all
767 # text except for the last 5.
768 else if (strlen ($arr[$i]) > 5)
770 $arr[$i-1] .= str_repeat ("'", strlen ($arr[$i]) - 5);
773 # Count the number of occurrences of bold and italics mark-ups.
774 # We are not counting sequences of five apostrophes.
775 if (strlen ($arr[$i]) == 2) $numitalics++
; else
776 if (strlen ($arr[$i]) == 3) $numbold++
; else
777 if (strlen ($arr[$i]) == 5) { $numitalics++
; $numbold++
; }
782 # If there is an odd number of both bold and italics, it is likely
783 # that one of the bold ones was meant to be an apostrophe followed
784 # by italics. Which one we cannot know for certain, but it is more
785 # likely to be one that has a single-letter word before it.
786 if (($numbold %
2 == 1) && ($numitalics %
2 == 1))
789 $firstsingleletterword = -1;
790 $firstmultiletterword = -1;
794 if (($i %
2 == 1) and (strlen ($r) == 3))
796 $x1 = substr ($arr[$i-1], -1);
797 $x2 = substr ($arr[$i-1], -2, 1);
799 if ($firstspace == -1) $firstspace = $i;
800 } else if ($x2 == ' ') {
801 if ($firstsingleletterword == -1) $firstsingleletterword = $i;
803 if ($firstmultiletterword == -1) $firstmultiletterword = $i;
809 # If there is a single-letter word, use it!
810 if ($firstsingleletterword > -1)
812 $arr [ $firstsingleletterword ] = "''";
813 $arr [ $firstsingleletterword-1 ] .= "'";
815 # If not, but there's a multi-letter word, use that one.
816 else if ($firstmultiletterword > -1)
818 $arr [ $firstmultiletterword ] = "''";
819 $arr [ $firstmultiletterword-1 ] .= "'";
821 # ... otherwise use the first one that has neither.
822 # (notice that it is possible for all three to be -1 if, for example,
823 # there is only one pentuple-apostrophe in the line)
824 else if ($firstspace > -1)
826 $arr [ $firstspace ] = "''";
827 $arr [ $firstspace-1 ] .= "'";
831 # Now let's actually convert our apostrophic mush to HTML!
840 if ($state == 'both')
847 if (strlen ($r) == 2)
850 { $output .= '</i>'; $state = ''; }
851 else if ($state == 'bi')
852 { $output .= '</i>'; $state = 'b'; }
853 else if ($state == 'ib')
854 { $output .= '</b></i><b>'; $state = 'b'; }
855 else if ($state == 'both')
856 { $output .= '<b><i>'.$buffer.'</i>'; $state = 'b'; }
857 else # $state can be 'b' or ''
858 { $output .= '<i>'; $state .= 'i'; }
860 else if (strlen ($r) == 3)
863 { $output .= '</b>'; $state = ''; }
864 else if ($state == 'bi')
865 { $output .= '</i></b><i>'; $state = 'i'; }
866 else if ($state == 'ib')
867 { $output .= '</b>'; $state = 'i'; }
868 else if ($state == 'both')
869 { $output .= '<i><b>'.$buffer.'</b>'; $state = 'i'; }
870 else # $state can be 'i' or ''
871 { $output .= '<b>'; $state .= 'b'; }
873 else if (strlen ($r) == 5)
876 { $output .= '</b><i>'; $state = 'i'; }
877 else if ($state == 'i')
878 { $output .= '</i><b>'; $state = 'b'; }
879 else if ($state == 'bi')
880 { $output .= '</i></b>'; $state = ''; }
881 else if ($state == 'ib')
882 { $output .= '</b></i>'; $state = ''; }
883 else if ($state == 'both')
884 { $output .= '<i><b>'.$buffer.'</b></i>'; $state = ''; }
885 else # ($state == '')
886 { $buffer = ''; $state = 'both'; }
891 # Now close all remaining tags. Notice that the order is important.
892 if ($state == 'b' ||
$state == 'ib')
894 if ($state == 'i' ||
$state == 'bi' ||
$state == 'ib')
898 if ($state == 'both')
899 $output .= '<b><i>'.$buffer.'</i></b>';
905 * Replace external links
907 * Note: we have to do external links before the internal ones,
908 * and otherwise take great care in the order of things here, so
909 * that we don't end up interpreting some URLs twice.
913 function replaceExternalLinks( $text ) {
914 $fname = 'Parser::replaceExternalLinks';
915 wfProfileIn( $fname );
917 $sk =& $this->mOptions
->getSkin();
918 $linktrail = wfMsgForContent('linktrail');
919 $bits = preg_split( EXT_LINK_BRACKETED
, $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
921 $s = $this->replaceFreeExternalLinks( array_shift( $bits ) );
924 while ( $i<count( $bits ) ) {
926 $protocol = $bits[$i++
];
928 $trail = $bits[$i++
];
930 # If the link text is an image URL, replace it with an <img> tag
931 # This happened by accident in the original parser, but some people used it extensively
932 $img = $this->maybeMakeImageLink( $text );
933 if ( $img !== false ) {
939 # No link text, e.g. [http://domain.tld/some.link]
941 # Autonumber if allowed
942 if ( strpos( HTTP_PROTOCOLS
, $protocol ) !== false ) {
943 $text = '[' . ++
$this->mAutonumber
. ']';
945 # Otherwise just use the URL
946 $text = htmlspecialchars( $url );
949 # Have link text, e.g. [http://domain.tld/some.link text]s
951 if ( preg_match( $linktrail, $trail, $m2 ) ) {
957 $encUrl = htmlspecialchars( $url );
958 # Bit in parentheses showing the URL for the printable version
959 if( $url == $text ||
preg_match( "!$protocol://" . preg_quote( $text, '/' ) . "/?$!", $url ) ) {
962 # Expand the URL for printable version
963 if ( ! $sk->suppressUrlExpansion() ) {
964 $paren = "<span class='urlexpansion'> (<i>" . htmlspecialchars ( $encUrl ) . "</i>)</span>";
970 # Process the trail (i.e. everything after this link up until start of the next link),
971 # replacing any non-bracketed links
972 $trail = $this->replaceFreeExternalLinks( $trail );
974 $la = $sk->getExternalLinkAttributes( $url, $text );
976 # Use the encoded URL
977 # This means that users can paste URLs directly into the text
978 # Funny characters like ö aren't valid in URLs anyway
979 # This was changed in August 2004
980 $s .= "<a href=\"{$url}\"{$la}>{$text}</a>{$dtrail}{$paren}{$trail}";
983 wfProfileOut( $fname );
988 * Replace anything that looks like a URL with a link
991 function replaceFreeExternalLinks( $text ) {
992 $bits = preg_split( '/((?:'.URL_PROTOCOLS
.'):)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
993 $s = array_shift( $bits );
996 $sk =& $this->mOptions
->getSkin();
998 while ( $i < count( $bits ) ){
999 $protocol = $bits[$i++
];
1000 $remainder = $bits[$i++
];
1002 if ( preg_match( '/^('.EXT_LINK_URL_CLASS
.'+)(.*)$/s', $remainder, $m ) ) {
1003 # Found some characters after the protocol that look promising
1004 $url = $protocol . $m[1];
1007 # Move trailing punctuation to $trail
1009 # If there is no left bracket, then consider right brackets fair game too
1010 if ( strpos( $url, '(' ) === false ) {
1014 $numSepChars = strspn( strrev( $url ), $sep );
1015 if ( $numSepChars ) {
1016 $trail = substr( $url, -$numSepChars ) . $trail;
1017 $url = substr( $url, 0, -$numSepChars );
1020 # Replace & from obsolete syntax with &
1021 $url = str_replace( '&', '&', $url );
1023 # Is this an external image?
1024 $text = $this->maybeMakeImageLink( $url );
1025 if ( $text === false ) {
1026 # Not an image, make a link
1027 $text = $sk->makeExternalLink( $url, $url );
1029 $s .= $text . $trail;
1031 $s .= $protocol . $remainder;
1038 * make an image if it's allowed
1041 function maybeMakeImageLink( $url ) {
1042 $sk =& $this->mOptions
->getSkin();
1044 if ( $this->mOptions
->getAllowExternalImages() ) {
1045 if ( preg_match( EXT_IMAGE_REGEX
, $url ) ) {
1047 $text = $sk->makeImage( htmlspecialchars( $url ) );
1054 * Process [[ ]] wikilinks
1058 function replaceInternalLinks( $s ) {
1059 global $wgLang, $wgContLang, $wgLinkCache;
1060 static $fname = 'Parser::replaceInternalLinks' ;
1061 wfProfileIn( $fname );
1063 wfProfileIn( $fname.'-setup' );
1065 # the % is needed to support urlencoded titles as well
1066 if ( !$tc ) { $tc = Title
::legalChars() . '#%'; }
1067 $sk =& $this->mOptions
->getSkin();
1069 $redirect = MagicWord
::get ( MAG_REDIRECT
) ;
1071 $a = explode( '[[', ' ' . $s );
1072 $s = array_shift( $a );
1073 $s = substr( $s, 1 );
1075 # Match a link having the form [[namespace:link|alternate]]trail
1077 if ( !$e1 ) { $e1 = "/^([{$tc}]+)(?:\\|([^]]+))?]](.*)\$/sD"; }
1078 # Match the end of a line for a word that's not followed by whitespace,
1079 # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
1080 static $e2 = '/^(.*?)([a-zA-Z\x80-\xff]+)$/sD';
1082 $useLinkPrefixExtension = $wgContLang->linkPrefixExtension();
1083 # Special and Media are pseudo-namespaces; no pages actually exist in them
1085 $nottalk = !Namespace::isTalk( $this->mTitle
->getNamespace() );
1087 if ( $useLinkPrefixExtension ) {
1088 if ( preg_match( $e2, $s, $m ) ) {
1089 $first_prefix = $m[2];
1092 $first_prefix = false;
1098 wfProfileOut( $fname.'-setup' );
1100 # start procedeeding each line
1101 foreach ( $a as $line ) {
1102 wfProfileIn( $fname.'-prefixhandling' );
1103 if ( $useLinkPrefixExtension ) {
1104 if ( preg_match( $e2, $s, $m ) ) {
1112 $prefix = $first_prefix;
1113 $first_prefix = false;
1116 wfProfileOut( $fname.'-prefixhandling' );
1118 if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
1120 # fix up urlencoded title texts
1121 if(preg_match('/%/', $m[1] )) $m[1] = urldecode($m[1]);
1123 } else { # Invalid form; output directly
1124 $s .= $prefix . '[[' . $line ;
1128 # Don't allow internal links to pages containing
1129 # PROTO: where PROTO is a valid URL protocol; these
1130 # should be external links.
1131 if (preg_match('/((?:'.URL_PROTOCOLS
.'):)/', $m[1])) {
1132 $s .= $prefix . '[[' . $line ;
1136 # Make subpage if necessary
1137 $link = $this->maybeDoSubpageLink( $m[1], $text );
1139 $noforce = (substr($m[1], 0, 1) != ':');
1141 # Strip off leading ':'
1142 $link = substr($link, 1);
1145 $wasblank = ( '' == $text );
1146 if( $wasblank ) $text = $link;
1148 $nt = Title
::newFromText( $link );
1150 $s .= $prefix . '[[' . $line;
1154 $ns = $nt->getNamespace();
1155 $iw = $nt->getInterWiki();
1157 # Link not escaped by : , create the various objects
1161 if( $iw && $this->mOptions
->getInterwikiMagic() && $nottalk && $wgContLang->getLanguageName( $iw ) ) {
1162 array_push( $this->mOutput
->mLanguageLinks
, $nt->getFullText() );
1163 $tmp = $prefix . $trail ;
1164 $s .= (trim($tmp) == '')?
'': $tmp;
1168 if ( $ns == NS_IMAGE
) {
1169 $s .= $prefix . $sk->makeImageLinkObj( $nt, $text ) . $trail;
1170 $wgLinkCache->addImageLinkObj( $nt );
1174 if ( $ns == NS_CATEGORY
) {
1175 $t = $nt->getText() ;
1176 $nnt = Title
::newFromText ( Namespace::getCanonicalName(NS_CATEGORY
).':'.$t ) ;
1178 $wgLinkCache->suspend(); # Don't save in links/brokenlinks
1179 $pPLC=$sk->postParseLinkColour();
1180 $sk->postParseLinkColour( false );
1181 $t = $sk->makeLinkObj( $nnt, $t, '', '' , $prefix );
1182 $sk->postParseLinkColour( $pPLC );
1183 $wgLinkCache->resume();
1186 if ( $this->mTitle
->getNamespace() == NS_CATEGORY
) {
1187 $sortkey = $this->mTitle
->getText();
1189 $sortkey = $this->mTitle
->getPrefixedText();
1194 $wgLinkCache->addCategoryLinkObj( $nt, $sortkey );
1195 $this->mOutput
->mCategoryLinks
[] = $t ;
1196 $s .= $prefix . $trail ;
1201 if( ( $nt->getPrefixedText() === $this->mTitle
->getPrefixedText() ) &&
1202 ( strpos( $link, '#' ) === FALSE ) ) {
1203 # Self-links are handled specially; generally de-link and change to bold.
1204 $s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail );
1208 if( $ns == NS_MEDIA
) {
1209 $s .= $prefix . $sk->makeMediaLinkObj( $nt, $text ) . $trail;
1210 $wgLinkCache->addImageLinkObj( $nt );
1212 } elseif( $ns == NS_SPECIAL
) {
1213 $s .= $prefix . $sk->makeKnownLinkObj( $nt, $text, '', $trail );
1216 $s .= $sk->makeLinkObj( $nt, $text, '', $trail, $prefix );
1218 wfProfileOut( $fname );
1223 * Handle link to subpage if necessary
1224 * @param $target string the source of the link
1225 * @param &$text the link text, modified as necessary
1226 * @return string the full name of the link
1229 function maybeDoSubpageLink($target, &$text) {
1232 # :Foobar -- override special treatment of prefix (images, language links)
1233 # /Foobar -- convert to CurrentPage/Foobar
1234 # /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text
1235 global $wgNamespacesWithSubpages;
1237 # Look at the first character
1238 if( $target{0} == '/' ) {
1239 # / at end means we don't want the slash to be shown
1240 if(substr($target,-1,1)=='/') {
1241 $target=substr($target,1,-1);
1244 $noslash=substr($target,1);
1247 # Some namespaces don't allow subpages
1248 if(!empty($wgNamespacesWithSubpages[$this->mTitle
->getNamespace()])) {
1249 # subpages allowed here
1250 $ret = $this->mTitle
->getPrefixedText(). '/' . trim($noslash);
1251 if( '' === $text ) {
1253 } # this might be changed for ugliness reasons
1255 # no subpage allowed, use standard link
1267 * Used by doBlockLevels()
1270 /* private */ function closeParagraph() {
1272 if ( '' != $this->mLastSection
) {
1273 $result = '</' . $this->mLastSection
. ">\n";
1275 $this->mInPre
= false;
1276 $this->mLastSection
= '';
1279 # getCommon() returns the length of the longest common substring
1280 # of both arguments, starting at the beginning of both.
1282 /* private */ function getCommon( $st1, $st2 ) {
1283 $fl = strlen( $st1 );
1284 $shorter = strlen( $st2 );
1285 if ( $fl < $shorter ) { $shorter = $fl; }
1287 for ( $i = 0; $i < $shorter; ++
$i ) {
1288 if ( $st1{$i} != $st2{$i} ) { break; }
1292 # These next three functions open, continue, and close the list
1293 # element appropriate to the prefix character passed into them.
1295 /* private */ function openList( $char ) {
1296 $result = $this->closeParagraph();
1298 if ( '*' == $char ) { $result .= '<ul><li>'; }
1299 else if ( '#' == $char ) { $result .= '<ol><li>'; }
1300 else if ( ':' == $char ) { $result .= '<dl><dd>'; }
1301 else if ( ';' == $char ) {
1302 $result .= '<dl><dt>';
1303 $this->mDTopen
= true;
1305 else { $result = '<!-- ERR 1 -->'; }
1310 /* private */ function nextItem( $char ) {
1311 if ( '*' == $char ||
'#' == $char ) { return '</li><li>'; }
1312 else if ( ':' == $char ||
';' == $char ) {
1314 if ( $this->mDTopen
) { $close = '</dt>'; }
1315 if ( ';' == $char ) {
1316 $this->mDTopen
= true;
1317 return $close . '<dt>';
1319 $this->mDTopen
= false;
1320 return $close . '<dd>';
1323 return '<!-- ERR 2 -->';
1326 /* private */ function closeList( $char ) {
1327 if ( '*' == $char ) { $text = '</li></ul>'; }
1328 else if ( '#' == $char ) { $text = '</li></ol>'; }
1329 else if ( ':' == $char ) {
1330 if ( $this->mDTopen
) {
1331 $this->mDTopen
= false;
1332 $text = '</dt></dl>';
1334 $text = '</dd></dl>';
1337 else { return '<!-- ERR 3 -->'; }
1343 * Make lists from lines starting with ':', '*', '#', etc.
1346 * @return string the lists rendered as HTML
1348 function doBlockLevels( $text, $linestart ) {
1349 $fname = 'Parser::doBlockLevels';
1350 wfProfileIn( $fname );
1352 # Parsing through the text line by line. The main thing
1353 # happening here is handling of block-level elements p, pre,
1354 # and making lists from lines starting with * # : etc.
1356 $textLines = explode( "\n", $text );
1358 $lastPrefix = $output = $lastLine = '';
1359 $this->mDTopen
= $inBlockElem = false;
1361 $paragraphStack = false;
1363 if ( !$linestart ) {
1364 $output .= array_shift( $textLines );
1366 foreach ( $textLines as $oLine ) {
1367 $lastPrefixLength = strlen( $lastPrefix );
1368 $preCloseMatch = preg_match('/<\\/pre/i', $oLine );
1369 $preOpenMatch = preg_match('/<pre/i', $oLine );
1370 if ( !$this->mInPre
) {
1371 # Multiple prefixes may abut each other for nested lists.
1372 $prefixLength = strspn( $oLine, '*#:;' );
1373 $pref = substr( $oLine, 0, $prefixLength );
1376 $pref2 = str_replace( ';', ':', $pref );
1377 $t = substr( $oLine, $prefixLength );
1378 $this->mInPre
= !empty($preOpenMatch);
1380 # Don't interpret any other prefixes in preformatted text
1382 $pref = $pref2 = '';
1387 if( $prefixLength && 0 == strcmp( $lastPrefix, $pref2 ) ) {
1388 # Same as the last item, so no need to deal with nesting or opening stuff
1389 $output .= $this->nextItem( substr( $pref, -1 ) );
1390 $paragraphStack = false;
1392 if ( substr( $pref, -1 ) == ';') {
1393 # The one nasty exception: definition lists work like this:
1394 # ; title : definition text
1395 # So we check for : in the remainder text to split up the
1396 # title and definition, without b0rking links.
1397 # FIXME: This is not foolproof. Something better in Tokenizer might help.
1398 if( preg_match( '/^(.*?(?:\s| )):(.*)$/', $t, $match ) ) {
1400 $output .= $term . $this->nextItem( ':' );
1404 } elseif( $prefixLength ||
$lastPrefixLength ) {
1405 # Either open or close a level...
1406 $commonPrefixLength = $this->getCommon( $pref, $lastPrefix );
1407 $paragraphStack = false;
1409 while( $commonPrefixLength < $lastPrefixLength ) {
1410 $output .= $this->closeList( $lastPrefix{$lastPrefixLength-1} );
1411 --$lastPrefixLength;
1413 if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) {
1414 $output .= $this->nextItem( $pref{$commonPrefixLength-1} );
1416 while ( $prefixLength > $commonPrefixLength ) {
1417 $char = substr( $pref, $commonPrefixLength, 1 );
1418 $output .= $this->openList( $char );
1420 if ( ';' == $char ) {
1421 # FIXME: This is dupe of code above
1422 if( preg_match( '/^(.*?(?:\s| )):(.*)$/', $t, $match ) ) {
1424 $output .= $term . $this->nextItem( ':' );
1428 ++
$commonPrefixLength;
1430 $lastPrefix = $pref2;
1432 if( 0 == $prefixLength ) {
1433 # No prefix (not in list)--go to paragraph mode
1434 $uniq_prefix = UNIQ_PREFIX
;
1435 // XXX: use a stack for nestable elements like span, table and div
1436 $openmatch = preg_match('/(<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<li|<\\/tr|<\\/td|<\\/th)/i', $t );
1437 $closematch = preg_match(
1438 '/(<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|'.
1439 '<td|<th|<div|<\\/div|<hr|<\\/pre|<\\/p|'.$uniq_prefix.'-pre|<\\/li|<\\/ul)/i', $t );
1440 if ( $openmatch or $closematch ) {
1441 $paragraphStack = false;
1442 $output .= $this->closeParagraph();
1443 if($preOpenMatch and !$preCloseMatch) {
1444 $this->mInPre
= true;
1446 if ( $closematch ) {
1447 $inBlockElem = false;
1449 $inBlockElem = true;
1451 } else if ( !$inBlockElem && !$this->mInPre
) {
1452 if ( ' ' == $t{0} and ( $this->mLastSection
== 'pre' or trim($t) != '' ) ) {
1454 if ($this->mLastSection
!= 'pre') {
1455 $paragraphStack = false;
1456 $output .= $this->closeParagraph().'<pre>';
1457 $this->mLastSection
= 'pre';
1459 $t = substr( $t, 1 );
1462 if ( '' == trim($t) ) {
1463 if ( $paragraphStack ) {
1464 $output .= $paragraphStack.'<br />';
1465 $paragraphStack = false;
1466 $this->mLastSection
= 'p';
1468 if ($this->mLastSection
!= 'p' ) {
1469 $output .= $this->closeParagraph();
1470 $this->mLastSection
= '';
1471 $paragraphStack = '<p>';
1473 $paragraphStack = '</p><p>';
1477 if ( $paragraphStack ) {
1478 $output .= $paragraphStack;
1479 $paragraphStack = false;
1480 $this->mLastSection
= 'p';
1481 } else if ($this->mLastSection
!= 'p') {
1482 $output .= $this->closeParagraph().'<p>';
1483 $this->mLastSection
= 'p';
1489 if ($paragraphStack === false) {
1493 while ( $prefixLength ) {
1494 $output .= $this->closeList( $pref2{$prefixLength-1} );
1497 if ( '' != $this->mLastSection
) {
1498 $output .= '</' . $this->mLastSection
. '>';
1499 $this->mLastSection
= '';
1502 wfProfileOut( $fname );
1507 * Return value of a magic variable (like PAGENAME)
1511 function getVariableValue( $index ) {
1512 global $wgContLang, $wgSitename, $wgServer;
1515 case MAG_CURRENTMONTH
:
1516 return $wgContLang->formatNum( date( 'm' ) );
1517 case MAG_CURRENTMONTHNAME
:
1518 return $wgContLang->getMonthName( date('n') );
1519 case MAG_CURRENTMONTHNAMEGEN
:
1520 return $wgContLang->getMonthNameGen( date('n') );
1521 case MAG_CURRENTDAY
:
1522 return $wgContLang->formatNum( date('j') );
1524 return $this->mTitle
->getText();
1526 return $this->mTitle
->getPartialURL();
1528 # return Namespace::getCanonicalName($this->mTitle->getNamespace());
1529 return $wgContLang->getNsText($this->mTitle
->getNamespace()); # Patch by Dori
1530 case MAG_CURRENTDAYNAME
:
1531 return $wgContLang->getWeekdayName( date('w')+
1 );
1532 case MAG_CURRENTYEAR
:
1533 return $wgContLang->formatNum( date( 'Y' ) );
1534 case MAG_CURRENTTIME
:
1535 return $wgContLang->time( wfTimestampNow(), false );
1536 case MAG_NUMBEROFARTICLES
:
1537 return $wgContLang->formatNum( wfNumberOfArticles() );
1548 * initialise the magic variables (like CURRENTMONTHNAME)
1552 function initialiseVariables() {
1553 global $wgVariableIDs;
1554 $this->mVariables
= array();
1555 foreach ( $wgVariableIDs as $id ) {
1556 $mw =& MagicWord
::get( $id );
1557 $mw->addToArray( $this->mVariables
, $this->getVariableValue( $id ) );
1562 * Replace magic variables, templates, and template arguments
1563 * with the appropriate text. Templates are substituted recursively,
1564 * taking care to avoid infinite loops.
1566 * Note that the substitution depends on value of $mOutputType:
1567 * OT_WIKI: only {{subst:}} templates
1568 * OT_MSG: only magic variables
1569 * OT_HTML: all templates and magic variables
1571 * @param string $tex The text to transform
1572 * @param array $args Key-value pairs representing template parameters to substitute
1575 function replaceVariables( $text, $args = array() ) {
1576 global $wgLang, $wgScript, $wgArticlePath;
1578 # Prevent too big inclusions
1579 if(strlen($text)> MAX_INCLUDE_SIZE
)
1582 $fname = 'Parser::replaceVariables';
1583 wfProfileIn( $fname );
1585 $titleChars = Title
::legalChars();
1587 # This function is called recursively. To keep track of arguments we need a stack:
1588 array_push( $this->mArgStack
, $args );
1590 # PHP global rebinding syntax is a bit weird, need to use the GLOBALS array
1591 $GLOBALS['wgCurParser'] =& $this;
1593 # Variable substitution
1594 $text = preg_replace_callback( "/{{([$titleChars]*?)}}/", 'wfVariableSubstitution', $text );
1596 if ( $this->mOutputType
== OT_HTML ||
$this->mOutputType
== OT_WIKI
) {
1597 # Argument substitution
1598 $text = preg_replace_callback( "/{{{([$titleChars]*?)}}}/", 'wfArgSubstitution', $text );
1600 # Template substitution
1601 $regex = '/(\\n|{)?{{(['.$titleChars.']*)(\\|.*?|)}}/s';
1602 $text = preg_replace_callback( $regex, 'wfBraceSubstitution', $text );
1604 array_pop( $this->mArgStack
);
1606 wfProfileOut( $fname );
1611 * Replace magic variables
1614 function variableSubstitution( $matches ) {
1615 if ( !$this->mVariables
) {
1616 $this->initialiseVariables();
1619 if ( $this->mOutputType
== OT_WIKI
) {
1620 # Do only magic variables prefixed by SUBST
1621 $mwSubst =& MagicWord
::get( MAG_SUBST
);
1622 if (!$mwSubst->matchStartAndRemove( $matches[1] ))
1624 # Note that if we don't substitute the variable below,
1625 # we don't remove the {{subst:}} magic word, in case
1626 # it is a template rather than a magic variable.
1628 if ( !$skip && array_key_exists( $matches[1], $this->mVariables
) ) {
1629 $text = $this->mVariables
[$matches[1]];
1630 $this->mOutput
->mContainsOldMagic
= true;
1632 $text = $matches[0];
1637 # Split template arguments
1638 function getTemplateArgs( $argsString ) {
1639 if ( $argsString === '' ) {
1643 $args = explode( '|', substr( $argsString, 1 ) );
1645 # If any of the arguments contains a '[[' but no ']]', it needs to be
1646 # merged with the next arg because the '|' character between belongs
1647 # to the link syntax and not the template parameter syntax.
1648 $argc = count($args);
1650 for ( $i = 0; $i < $argc-1; $i++
) {
1651 if ( substr_count ( $args[$i], '[[' ) != substr_count ( $args[$i], ']]' ) ) {
1652 $args[$i] .= '|'.$args[$i+
1];
1653 array_splice($args, $i+
1, 1);
1663 * Return the text of a template, after recursively
1664 * replacing any variables or templates within the template.
1666 * @param array $matches The parts of the template
1667 * $matches[1]: the title, i.e. the part before the |
1668 * $matches[2]: the parameters (including a leading |), if any
1669 * @return string the text of the template
1672 function braceSubstitution( $matches ) {
1673 global $wgLinkCache, $wgContLang;
1674 $fname = 'Parser::braceSubstitution';
1681 # Need to know if the template comes at the start of a line,
1682 # to treat the beginning of the template like the beginning
1683 # of a line for tables and block-level elements.
1684 $linestart = $matches[1];
1686 # $part1 is the bit before the first |, and must contain only title characters
1687 # $args is a list of arguments, starting from index 0, not including $part1
1689 $part1 = $matches[2];
1690 # If the third subpattern matched anything, it will start with |
1692 $args = $this->getTemplateArgs($matches[3]);
1693 $argc = count( $args );
1695 # Don't parse {{{}}} because that's only for template arguments
1696 if ( $linestart === '{' ) {
1697 $text = $matches[0];
1704 $mwSubst =& MagicWord
::get( MAG_SUBST
);
1705 if ( $mwSubst->matchStartAndRemove( $part1 ) xor ($this->mOutputType
== OT_WIKI
) ) {
1706 # One of two possibilities is true:
1707 # 1) Found SUBST but not in the PST phase
1708 # 2) Didn't find SUBST and in the PST phase
1709 # In either case, return without further processing
1710 $text = $matches[0];
1716 # MSG, MSGNW and INT
1719 $mwMsgnw =& MagicWord
::get( MAG_MSGNW
);
1720 if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
1723 # Remove obsolete MSG:
1724 $mwMsg =& MagicWord
::get( MAG_MSG
);
1725 $mwMsg->matchStartAndRemove( $part1 );
1728 # Check if it is an internal message
1729 $mwInt =& MagicWord
::get( MAG_INT
);
1730 if ( $mwInt->matchStartAndRemove( $part1 ) ) {
1731 if ( $this->incrementIncludeCount( 'int:'.$part1 ) ) {
1732 $text = $linestart . wfMsgReal( $part1, $args, true );
1740 # Check for NS: (namespace expansion)
1741 $mwNs = MagicWord
::get( MAG_NS
);
1742 if ( $mwNs->matchStartAndRemove( $part1 ) ) {
1743 if ( intval( $part1 ) ) {
1744 $text = $linestart . $wgContLang->getNsText( intval( $part1 ) );
1747 $index = Namespace::getCanonicalIndex( strtolower( $part1 ) );
1748 if ( !is_null( $index ) ) {
1749 $text = $linestart . $wgContLang->getNsText( $index );
1756 # LOCALURL and LOCALURLE
1758 $mwLocal = MagicWord
::get( MAG_LOCALURL
);
1759 $mwLocalE = MagicWord
::get( MAG_LOCALURLE
);
1761 if ( $mwLocal->matchStartAndRemove( $part1 ) ) {
1762 $func = 'getLocalURL';
1763 } elseif ( $mwLocalE->matchStartAndRemove( $part1 ) ) {
1764 $func = 'escapeLocalURL';
1769 if ( $func !== '' ) {
1770 $title = Title
::newFromText( $part1 );
1771 if ( !is_null( $title ) ) {
1773 $text = $linestart . $title->$func( $args[0] );
1775 $text = $linestart . $title->$func();
1783 if ( !$found && $argc == 1 ) {
1784 $mwGrammar =& MagicWord
::get( MAG_GRAMMAR
);
1785 if ( $mwGrammar->matchStartAndRemove( $part1 ) ) {
1786 $text = $linestart . $wgContLang->convertGrammar( $args[0], $part1 );
1791 # Template table test
1793 # Did we encounter this template already? If yes, it is in the cache
1794 # and we need to check for loops.
1795 if ( !$found && isset( $this->mTemplates
[$part1] ) ) {
1796 # set $text to cached message.
1797 $text = $linestart . $this->mTemplates
[$part1];
1800 # Infinite loop test
1801 if ( isset( $this->mTemplatePath
[$part1] ) ) {
1804 $text .= '<!-- WARNING: template loop detected -->';
1808 # Load from database
1809 $itcamefromthedatabase = false;
1812 $part1 = $this->maybeDoSubpageLink( $part1, $subpage='' );
1813 if ($subpage !== '') {
1814 $ns = $this->mTitle
->getNamespace();
1816 $title = Title
::newFromText( $part1, $ns );
1817 if ( !is_null( $title ) && !$title->isExternal() ) {
1818 # Check for excessive inclusion
1819 $dbk = $title->getPrefixedDBkey();
1820 if ( $this->incrementIncludeCount( $dbk ) ) {
1821 # This should never be reached.
1822 $article = new Article( $title );
1823 $articleContent = $article->getContentWithoutUsingSoManyDamnGlobals();
1824 if ( $articleContent !== false ) {
1826 $text = $linestart . $articleContent;
1827 $itcamefromthedatabase = true;
1831 # If the title is valid but undisplayable, make a link to it
1832 if ( $this->mOutputType
== OT_HTML
&& !$found ) {
1833 $text = $linestart . '[['.$title->getPrefixedText().']]';
1837 # Template cache array insertion
1838 $this->mTemplates
[$part1] = $text;
1842 # Recursive parsing, escaping and link table handling
1843 # Only for HTML output
1844 if ( $nowiki && $found && $this->mOutputType
== OT_HTML
) {
1845 $text = wfEscapeWikiText( $text );
1846 } elseif ( ($this->mOutputType
== OT_HTML ||
$this->mOutputType
== OT_WIKI
) && $found && !$noparse) {
1847 # Clean up argument array
1848 $assocArgs = array();
1850 foreach( $args as $arg ) {
1851 $eqpos = strpos( $arg, '=' );
1852 if ( $eqpos === false ) {
1853 $assocArgs[$index++
] = $arg;
1855 $name = trim( substr( $arg, 0, $eqpos ) );
1856 $value = trim( substr( $arg, $eqpos+
1 ) );
1857 if ( $value === false ) {
1860 if ( $name !== false ) {
1861 $assocArgs[$name] = $value;
1866 # Add a new element to the templace recursion path
1867 $this->mTemplatePath
[$part1] = 1;
1869 $text = $this->strip( $text, $this->mStripState
);
1870 $text = $this->removeHTMLtags( $text );
1871 $text = $this->replaceVariables( $text, $assocArgs );
1873 # Resume the link cache and register the inclusion as a link
1874 if ( $this->mOutputType
== OT_HTML
&& !is_null( $title ) ) {
1875 $wgLinkCache->addLinkObj( $title );
1878 # If the template begins with a table or block-level
1879 # element, it should be treated as beginning a new line.
1880 if ($linestart !== '\n' && preg_match('/^({\\||:|;|#|\*)/', $text)) {
1881 $text = "\n" . $text;
1885 # Empties the template path
1886 $this->mTemplatePath
= array();
1890 # replace ==section headers==
1891 # XXX this needs to go away once we have a better parser.
1892 if ( $this->mOutputType
!= OT_WIKI
&& $itcamefromthedatabase ) {
1893 if( !is_null( $title ) )
1894 $encodedname = base64_encode($title->getPrefixedDBkey());
1896 $encodedname = base64_encode("");
1897 $m = preg_split('/(^={1,6}.*?={1,6}\s*?$)/m', $text, -1,
1898 PREG_SPLIT_DELIM_CAPTURE
);
1901 for( $i = 0; $i < count($m); $i +
= 2 ) {
1903 if (!isset($m[$i +
1]) ||
$m[$i +
1] == "") continue;
1905 if( strstr($hl, "<!--MWTEMPLATESECTION") ) {
1909 preg_match('/^(={1,6})(.*?)(={1,6})\s*?$/m', $hl, $m2);
1910 $text .= $m2[1] . $m2[2] . "<!--MWTEMPLATESECTION="
1911 . $encodedname . "&" . base64_encode("$nsec") . "-->" . $m2[3];
1918 # Empties the template path
1919 $this->mTemplatePath
= array();
1928 * Triple brace replacement -- used for template arguments
1931 function argSubstitution( $matches ) {
1932 $arg = trim( $matches[1] );
1933 $text = $matches[0];
1934 $inputArgs = end( $this->mArgStack
);
1936 if ( array_key_exists( $arg, $inputArgs ) ) {
1937 $text = $inputArgs[$arg];
1944 * Returns true if the function is allowed to include this entity
1947 function incrementIncludeCount( $dbk ) {
1948 if ( !array_key_exists( $dbk, $this->mIncludeCount
) ) {
1949 $this->mIncludeCount
[$dbk] = 0;
1951 if ( ++
$this->mIncludeCount
[$dbk] <= MAX_INCLUDE_REPEAT
) {
1960 * Cleans up HTML, removes dangerous tags and attributes, and
1961 * removes HTML comments
1964 function removeHTMLtags( $text ) {
1965 global $wgUseTidy, $wgUserHtml;
1966 $fname = 'Parser::removeHTMLtags';
1967 wfProfileIn( $fname );
1970 $htmlpairs = array( # Tags that must be closed
1971 'b', 'del', 'i', 'ins', 'u', 'font', 'big', 'small', 'sub', 'sup', 'h1',
1972 'h2', 'h3', 'h4', 'h5', 'h6', 'cite', 'code', 'em', 's',
1973 'strike', 'strong', 'tt', 'var', 'div', 'center',
1974 'blockquote', 'ol', 'ul', 'dl', 'table', 'caption', 'pre',
1975 'ruby', 'rt' , 'rb' , 'rp', 'p'
1977 $htmlsingle = array(
1978 'br', 'hr', 'li', 'dt', 'dd'
1980 $htmlnest = array( # Tags that can be nested--??
1981 'table', 'tr', 'td', 'th', 'div', 'blockquote', 'ol', 'ul',
1982 'dl', 'font', 'big', 'small', 'sub', 'sup'
1984 $tabletags = array( # Can only appear inside table
1988 $htmlpairs = array();
1989 $htmlsingle = array();
1990 $htmlnest = array();
1991 $tabletags = array();
1994 $htmlsingle = array_merge( $tabletags, $htmlsingle );
1995 $htmlelements = array_merge( $htmlsingle, $htmlpairs );
1997 $htmlattrs = $this->getHTMLattrs () ;
1999 # Remove HTML comments
2000 $text = $this->removeHTMLcomments( $text );
2002 $bits = explode( '<', $text );
2003 $text = array_shift( $bits );
2005 $tagstack = array(); $tablestack = array();
2006 foreach ( $bits as $x ) {
2007 $prev = error_reporting( E_ALL
& ~
( E_NOTICE | E_WARNING
) );
2008 preg_match( '/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/',
2010 list( $qbar, $slash, $t, $params, $brace, $rest ) = $regs;
2011 error_reporting( $prev );
2014 if ( in_array( $t = strtolower( $t ), $htmlelements ) ) {
2018 if ( ! in_array( $t, $htmlsingle ) &&
2019 ( $ot = @array_pop
( $tagstack ) ) != $t ) {
2020 @array_push
( $tagstack, $ot );
2023 if ( $t == 'table' ) {
2024 $tagstack = array_pop( $tablestack );
2029 # Keep track for later
2030 if ( in_array( $t, $tabletags ) &&
2031 ! in_array( 'table', $tagstack ) ) {
2033 } else if ( in_array( $t, $tagstack ) &&
2034 ! in_array ( $t , $htmlnest ) ) {
2036 } else if ( ! in_array( $t, $htmlsingle ) ) {
2037 if ( $t == 'table' ) {
2038 array_push( $tablestack, $tagstack );
2039 $tagstack = array();
2041 array_push( $tagstack, $t );
2043 # Strip non-approved attributes from the tag
2044 $newparams = $this->fixTagAttributes($params);
2048 $rest = str_replace( '>', '>', $rest );
2049 $text .= "<$slash$t $newparams$brace$rest";
2053 $text .= '<' . str_replace( '>', '>', $x);
2055 # Close off any remaining tags
2056 while ( is_array( $tagstack ) && ($t = array_pop( $tagstack )) ) {
2058 if ( $t == 'table' ) { $tagstack = array_pop( $tablestack ); }
2061 # this might be possible using tidy itself
2062 foreach ( $bits as $x ) {
2063 preg_match( '/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/',
2065 @list
( $qbar, $slash, $t, $params, $brace, $rest ) = $regs;
2066 if ( in_array( $t = strtolower( $t ), $htmlelements ) ) {
2067 $newparams = $this->fixTagAttributes($params);
2068 $rest = str_replace( '>', '>', $rest );
2069 $text .= "<$slash$t $newparams$brace$rest";
2071 $text .= '<' . str_replace( '>', '>', $x);
2075 wfProfileOut( $fname );
2080 * Remove '<!--', '-->', and everything between.
2081 * To avoid leaving blank lines, when a comment is both preceded
2082 * and followed by a newline (ignoring spaces), trim leading and
2083 * trailing spaces and one of the newlines.
2087 function removeHTMLcomments( $text ) {
2088 $fname='Parser::removeHTMLcomments';
2089 wfProfileIn( $fname );
2090 while (($start = strpos($text, '<!--')) !== false) {
2091 $end = strpos($text, '-->', $start +
4);
2092 if ($end === false) {
2093 # Unterminated comment; bail out
2099 # Trim space and newline if the comment is both
2100 # preceded and followed by a newline
2101 $spaceStart = max($start - 1, 0);
2102 $spaceLen = $end - $spaceStart;
2103 while (substr($text, $spaceStart, 1) === ' ' && $spaceStart > 0) {
2107 while (substr($text, $spaceStart +
$spaceLen, 1) === ' ')
2109 if (substr($text, $spaceStart, 1) === "\n" and substr($text, $spaceStart +
$spaceLen, 1) === "\n") {
2110 # Remove the comment, leading and trailing
2111 # spaces, and leave only one newline.
2112 $text = substr_replace($text, "\n", $spaceStart, $spaceLen +
1);
2115 # Remove just the comment.
2116 $text = substr_replace($text, '', $start, $end - $start);
2119 wfProfileOut( $fname );
2124 * This function accomplishes several tasks:
2125 * 1) Auto-number headings if that option is enabled
2126 * 2) Add an [edit] link to sections for logged in users who have enabled the option
2127 * 3) Add a Table of contents on the top for users who have enabled the option
2128 * 4) Auto-anchor headings
2130 * It loops through all headlines, collects the necessary data, then splits up the
2131 * string and re-inserts the newly formatted headlines.
2134 /* private */ function formatHeadings( $text, $isMain=true ) {
2135 global $wgInputEncoding, $wgMaxTocLevel, $wgContLang, $wgLinkHolders;
2137 $doNumberHeadings = $this->mOptions
->getNumberHeadings();
2138 $doShowToc = $this->mOptions
->getShowToc();
2139 $forceTocHere = false;
2140 if( !$this->mTitle
->userCanEdit() ) {
2142 $rightClickHack = 0;
2144 $showEditLink = $this->mOptions
->getEditSection();
2145 $rightClickHack = $this->mOptions
->getEditSectionOnRightClick();
2148 # Inhibit editsection links if requested in the page
2149 $esw =& MagicWord
::get( MAG_NOEDITSECTION
);
2150 if( $esw->matchAndRemove( $text ) ) {
2153 # if the string __NOTOC__ (not case-sensitive) occurs in the HTML,
2155 $mw =& MagicWord
::get( MAG_NOTOC
);
2156 if( $mw->matchAndRemove( $text ) ) {
2160 # never add the TOC to the Main Page. This is an entry page that should not
2161 # be more than 1-2 screens large anyway
2162 if( $this->mTitle
->getPrefixedText() == wfMsg('mainpage') ) {
2166 # Get all headlines for numbering them and adding funky stuff like [edit]
2167 # links - this is for later, but we need the number of headlines right now
2168 $numMatches = preg_match_all( '/<H([1-6])(.*?' . '>)(.*?)<\/H[1-6]>/i', $text, $matches );
2170 # if there are fewer than 4 headlines in the article, do not show TOC
2171 if( $numMatches < 4 ) {
2175 # if the string __TOC__ (not case-sensitive) occurs in the HTML,
2176 # override above conditions and always show TOC at that place
2177 $mw =& MagicWord
::get( MAG_TOC
);
2178 if ($mw->match( $text ) ) {
2180 $forceTocHere = true;
2182 # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
2183 # override above conditions and always show TOC above first header
2184 $mw =& MagicWord
::get( MAG_FORCETOC
);
2185 if ($mw->matchAndRemove( $text ) ) {
2192 # We need this to perform operations on the HTML
2193 $sk =& $this->mOptions
->getSkin();
2197 $sectionCount = 0; # headlineCount excluding template sections
2199 # Ugh .. the TOC should have neat indentation levels which can be
2200 # passed to the skin functions. These are determined here
2205 $sublevelCount = array();
2208 foreach( $matches[3] as $headline ) {
2210 $templatetitle = "";
2211 $templatesection = 0;
2213 if (preg_match("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", $headline, $mat)) {
2215 $templatetitle = base64_decode($mat[1]);
2216 $templatesection = 1 +
(int)base64_decode($mat[2]);
2217 $headline = preg_replace("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", "", $headline);
2222 $prevlevel = $level;
2224 $level = $matches[1][$headlineCount];
2225 if( ( $doNumberHeadings ||
$doShowToc ) && $prevlevel && $level > $prevlevel ) {
2226 # reset when we enter a new level
2227 $sublevelCount[$level] = 0;
2228 $toc .= $sk->tocIndent( $level - $prevlevel );
2229 $toclevel +
= $level - $prevlevel;
2231 if( ( $doNumberHeadings ||
$doShowToc ) && $level < $prevlevel ) {
2232 # reset when we step back a level
2233 $sublevelCount[$level+
1]=0;
2234 $toc .= $sk->tocUnindent( $prevlevel - $level );
2235 $toclevel -= $prevlevel - $level;
2237 # count number of headlines for each level
2238 @$sublevelCount[$level]++
;
2239 if( $doNumberHeadings ||
$doShowToc ) {
2241 for( $i = 1; $i <= $level; $i++
) {
2242 if( !empty( $sublevelCount[$i] ) ) {
2246 $numbering .= $wgContLang->formatNum( $sublevelCount[$i] );
2252 # The canonized header is a version of the header text safe to use for links
2253 # Avoid insertion of weird stuff like <math> by expanding the relevant sections
2254 $canonized_headline = $this->unstrip( $headline, $this->mStripState
);
2255 $canonized_headline = $this->unstripNoWiki( $headline, $this->mStripState
);
2257 # Remove link placeholders by the link text.
2258 # <!--LINK number-->
2260 # link text with suffix
2261 $canonized_headline = preg_replace( '/<!--LINK ([0-9]*)-->/e',
2262 "\$wgLinkHolders['texts'][\$1]",
2263 $canonized_headline );
2266 $canonized_headline = preg_replace( '/<.*?' . '>/','',$canonized_headline );
2267 $tocline = trim( $canonized_headline );
2268 $canonized_headline = urlencode( do_html_entity_decode( str_replace(' ', '_', $tocline), ENT_COMPAT
, $wgInputEncoding ) );
2269 $replacearray = array(
2273 $canonized_headline = str_replace(array_keys($replacearray),array_values($replacearray),$canonized_headline);
2274 $refer[$headlineCount] = $canonized_headline;
2276 # count how many in assoc. array so we can track dupes in anchors
2277 @$refers[$canonized_headline]++
;
2278 $refcount[$headlineCount]=$refers[$canonized_headline];
2280 # Prepend the number to the heading text
2282 if( $doNumberHeadings ||
$doShowToc ) {
2283 $tocline = $numbering . ' ' . $tocline;
2285 # Don't number the heading if it is the only one (looks silly)
2286 if( $doNumberHeadings && count( $matches[3] ) > 1) {
2287 # the two are different if the line contains a link
2288 $headline=$numbering . ' ' . $headline;
2292 # Create the anchor for linking from the TOC to the section
2293 $anchor = $canonized_headline;
2294 if($refcount[$headlineCount] > 1 ) {
2295 $anchor .= '_' . $refcount[$headlineCount];
2297 if( $doShowToc && ( !isset($wgMaxTocLevel) ||
$toclevel<$wgMaxTocLevel ) ) {
2298 $toc .= $sk->tocLine($anchor,$tocline,$toclevel);
2300 if( $showEditLink && ( !$istemplate ||
$templatetitle !== "" ) ) {
2301 if ( empty( $head[$headlineCount] ) ) {
2302 $head[$headlineCount] = '';
2305 $head[$headlineCount] .= $sk->editSectionLinkForOther($templatetitle, $templatesection);
2307 $head[$headlineCount] .= $sk->editSectionLink($sectionCount+
1);
2310 # Add the edit section span
2311 if( $rightClickHack ) {
2313 $headline = $sk->editSectionScriptForOther($templatetitle, $templatesection, $headline);
2315 $headline = $sk->editSectionScript($sectionCount+
1,$headline);
2318 # give headline the correct <h#> tag
2319 @$head[$headlineCount] .= "<a name=\"$anchor\"></a><h".$level.$matches[2][$headlineCount] .$headline.'</h'.$level.'>';
2327 $toclines = $headlineCount;
2328 $toc .= $sk->tocUnindent( $toclevel );
2329 $toc = $sk->tocTable( $toc );
2332 # split up and insert constructed headlines
2334 $blocks = preg_split( '/<H[1-6].*?' . '>.*?<\/H[1-6]>/i', $text );
2337 foreach( $blocks as $block ) {
2338 if( $showEditLink && $headlineCount > 0 && $i == 0 && $block != "\n" ) {
2339 # This is the [edit] link that appears for the top block of text when
2340 # section editing is enabled
2342 # Disabled because it broke block formatting
2343 # For example, a bullet point in the top line
2344 # $full .= $sk->editSectionLink(0);
2347 if( $doShowToc && !$i && $isMain && !$forceTocHere) {
2348 # Top anchor now in skin
2352 if( !empty( $head[$i] ) ) {
2358 $mw =& MagicWord
::get( MAG_TOC
);
2359 return $mw->replace( $toc, $full );
2366 * Return an HTML link for the "ISBN 123456" text
2369 function magicISBN( $text ) {
2371 $fname = 'Parser::magicISBN';
2372 wfProfileIn( $fname );
2374 $a = split( 'ISBN ', ' '.$text );
2375 if ( count ( $a ) < 2 ) {
2376 wfProfileOut( $fname );
2379 $text = substr( array_shift( $a ), 1);
2380 $valid = '0123456789-ABCDEFGHIJKLMNOPQRSTUVWXYZ';
2382 foreach ( $a as $x ) {
2383 $isbn = $blank = '' ;
2384 while ( ' ' == $x{0} ) {
2386 $x = substr( $x, 1 );
2388 if ( $x == '' ) { # blank isbn
2389 $text .= "ISBN $blank";
2392 while ( strstr( $valid, $x{0} ) != false ) {
2394 $x = substr( $x, 1 );
2396 $num = str_replace( '-', '', $isbn );
2397 $num = str_replace( ' ', '', $num );
2400 $text .= "ISBN $blank$x";
2402 $titleObj = Title
::makeTitle( NS_SPECIAL
, 'Booksources' );
2403 $text .= '<a href="' .
2404 $titleObj->escapeLocalUrl( 'isbn='.$num ) .
2405 "\" class=\"internal\">ISBN $isbn</a>";
2409 wfProfileOut( $fname );
2414 * Return an HTML link for the "GEO ..." text
2417 function magicGEO( $text ) {
2418 global $wgLang, $wgUseGeoMode;
2419 $fname = 'Parser::magicGEO';
2420 wfProfileIn( $fname );
2422 # These next five lines are only for the ~35000 U.S. Census Rambot pages...
2423 $directions = array ( 'N' => 'North' , 'S' => 'South' , 'E' => 'East' , 'W' => 'West' ) ;
2424 $text = preg_replace ( "/(\d+)°(\d+)'(\d+)\" {$directions['N']}, (\d+)°(\d+)'(\d+)\" {$directions['W']}/" , "(GEO +\$1.\$2.\$3:-\$4.\$5.\$6)" , $text ) ;
2425 $text = preg_replace ( "/(\d+)°(\d+)'(\d+)\" {$directions['N']}, (\d+)°(\d+)'(\d+)\" {$directions['E']}/" , "(GEO +\$1.\$2.\$3:+\$4.\$5.\$6)" , $text ) ;
2426 $text = preg_replace ( "/(\d+)°(\d+)'(\d+)\" {$directions['S']}, (\d+)°(\d+)'(\d+)\" {$directions['W']}/" , "(GEO +\$1.\$2.\$3:-\$4.\$5.\$6)" , $text ) ;
2427 $text = preg_replace ( "/(\d+)°(\d+)'(\d+)\" {$directions['S']}, (\d+)°(\d+)'(\d+)\" {$directions['E']}/" , "(GEO +\$1.\$2.\$3:+\$4.\$5.\$6)" , $text ) ;
2429 $a = split( 'GEO ', ' '.$text );
2430 if ( count ( $a ) < 2 ) {
2431 wfProfileOut( $fname );
2434 $text = substr( array_shift( $a ), 1);
2435 $valid = '0123456789.+-:';
2437 foreach ( $a as $x ) {
2438 $geo = $blank = '' ;
2439 while ( ' ' == $x{0} ) {
2441 $x = substr( $x, 1 );
2443 while ( strstr( $valid, $x{0} ) != false ) {
2445 $x = substr( $x, 1 );
2447 $num = str_replace( '+', '', $geo );
2448 $num = str_replace( ' ', '', $num );
2450 if ( '' == $num ||
count ( explode ( ':' , $num , 3 ) ) < 2 ) {
2451 $text .= "GEO $blank$x";
2453 $titleObj = Title
::makeTitle( NS_SPECIAL
, 'Geo' );
2454 $text .= '<a href="' .
2455 $titleObj->escapeLocalUrl( 'coordinates='.$num ) .
2456 "\" class=\"internal\">GEO $geo</a>";
2460 wfProfileOut( $fname );
2465 * Return an HTML link for the "RFC 1234" text
2467 * @param string $text text to be processed
2469 function magicRFC( $text ) {
2472 $valid = '0123456789';
2475 $a = split( 'RFC ', ' '.$text );
2476 if ( count ( $a ) < 2 ) return $text;
2477 $text = substr( array_shift( $a ), 1);
2479 /* Check if RFC keyword is preceed by [[.
2480 * This test is made here cause of the array_shift above
2481 * that prevent the test to be done in the foreach.
2483 if(substr($text, -2) == '[[') { $internal = true; }
2485 foreach ( $a as $x ) {
2486 /* token might be empty if we have RFC RFC 1234 */
2492 $rfc = $blank = '' ;
2494 /** remove and save whitespaces in $blank */
2495 while ( $x{0} == ' ' ) {
2497 $x = substr( $x, 1 );
2500 /** remove and save the rfc number in $rfc */
2501 while ( strstr( $valid, $x{0} ) != false ) {
2503 $x = substr( $x, 1 );
2507 /* call back stripped spaces*/
2508 $text .= "RFC $blank$x";
2509 } elseif( $internal) {
2511 $text .= "RFC $rfc$x";
2513 /* build the external link*/
2514 $url = wfmsg( 'rfcurl' );
2515 $url = str_replace( '$1', $rfc, $url);
2516 $sk =& $this->mOptions
->getSkin();
2517 $la = $sk->getExternalLinkAttributes( $url, 'RFC '.$rfc );
2518 $text .= "<a href='{$url}'{$la}>RFC {$rfc}</a>{$x}";
2521 /* Check if the next RFC keyword is preceed by [[ */
2522 $internal = (substr($x,-2) == '[[');
2528 * Transform wiki markup when saving a page by doing \r\n -> \n
2529 * conversion, substitting signatures, {{subst:}} templates, etc.
2531 * @param string $text the text to transform
2532 * @param Title &$title the Title object for the current article
2533 * @param User &$user the User object describing the current user
2534 * @param ParserOptions $options parsing options
2535 * @param bool $clearState whether to clear the parser state first
2536 * @return string the altered wiki markup
2539 function preSaveTransform( $text, &$title, &$user, $options, $clearState = true ) {
2540 $this->mOptions
= $options;
2541 $this->mTitle
=& $title;
2542 $this->mOutputType
= OT_WIKI
;
2544 if ( $clearState ) {
2545 $this->clearState();
2548 $stripState = false;
2552 $text = str_replace(array_keys($pairs), array_values($pairs), $text);
2556 "/<br.+(clear|break)=[\"']?(all|both)[\"']?\\/?>/i" => '<br style="clear:both;"/>',
2557 "/<br *?>/i" => "<br />",
2559 $text = preg_replace(array_keys($pairs), array_values($pairs), $text);
2561 $text = $this->strip( $text, $stripState, false );
2562 $text = $this->pstPass2( $text, $user );
2563 $text = $this->unstrip( $text, $stripState );
2564 $text = $this->unstripNoWiki( $text, $stripState );
2569 * Pre-save transform helper function
2572 function pstPass2( $text, &$user ) {
2573 global $wgLang, $wgContLang, $wgLocaltimezone, $wgCurParser;
2575 # Variable replacement
2576 # Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
2577 $text = $this->replaceVariables( $text );
2581 $n = $user->getName();
2582 $k = $user->getOption( 'nickname' );
2583 if ( '' == $k ) { $k = $n; }
2584 if(isset($wgLocaltimezone)) {
2585 $oldtz = getenv('TZ'); putenv('TZ='.$wgLocaltimezone);
2587 /* Note: this is an ugly timezone hack for the European wikis */
2588 $d = $wgContLang->timeanddate( date( 'YmdHis' ), false ) .
2589 ' (' . date( 'T' ) . ')';
2590 if(isset($wgLocaltimezone)) putenv('TZ='.$oldtzs);
2592 $text = preg_replace( '/~~~~~/', $d, $text );
2593 $text = preg_replace( '/~~~~/', '[[' . $wgContLang->getNsText( NS_USER
) . ":$n|$k]] $d", $text );
2594 $text = preg_replace( '/~~~/', '[[' . $wgContLang->getNsText( NS_USER
) . ":$n|$k]]", $text );
2596 # Context links: [[|name]] and [[name (context)|]]
2598 $tc = "[&;%\\-,.\\(\\)' _0-9A-Za-z\\/:\\x80-\\xff]";
2599 $np = "[&;%\\-,.' _0-9A-Za-z\\/:\\x80-\\xff]"; # No parens
2600 $namespacechar = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii!
2601 $conpat = "/^({$np}+) \\(({$tc}+)\\)$/";
2603 $p1 = "/\[\[({$np}+) \\(({$np}+)\\)\\|]]/"; # [[page (context)|]]
2604 $p2 = "/\[\[\\|({$tc}+)]]/"; # [[|page]]
2605 $p3 = "/\[\[(:*$namespacechar+):({$np}+)\\|]]/"; # [[namespace:page|]] and [[:namespace:page|]]
2606 $p4 = "/\[\[(:*$namespacechar+):({$np}+) \\(({$np}+)\\)\\|]]/"; # [[ns:page (cont)|]] and [[:ns:page (cont)|]]
2608 $t = $this->mTitle
->getText();
2609 if ( preg_match( $conpat, $t, $m ) ) {
2612 $text = preg_replace( $p4, '[[\\1:\\2 (\\3)|\\2]]', $text );
2613 $text = preg_replace( $p1, '[[\\1 (\\2)|\\1]]', $text );
2614 $text = preg_replace( $p3, '[[\\1:\\2|\\2]]', $text );
2616 if ( '' == $context ) {
2617 $text = preg_replace( $p2, '[[\\1]]', $text );
2619 $text = preg_replace( $p2, "[[\\1 ({$context})|\\1]]", $text );
2622 # Trim trailing whitespace
2623 # MAG_END (__END__) tag allows for trailing
2624 # whitespace to be deliberately included
2625 $text = rtrim( $text );
2626 $mw =& MagicWord
::get( MAG_END
);
2627 $mw->matchAndRemove( $text );
2633 * Set up some variables which are usually set up in parse()
2634 * so that an external function can call some class members with confidence
2637 function startExternalParse( &$title, $options, $outputType, $clearState = true ) {
2638 $this->mTitle
=& $title;
2639 $this->mOptions
= $options;
2640 $this->mOutputType
= $outputType;
2641 if ( $clearState ) {
2642 $this->clearState();
2647 * Transform a MediaWiki message by replacing magic variables.
2649 * @param string $text the text to transform
2650 * @param ParserOptions $options options
2651 * @return string the text with variables substituted
2654 function transformMsg( $text, $options ) {
2656 static $executing = false;
2658 # Guard against infinite recursion
2664 $this->mTitle
= $wgTitle;
2665 $this->mOptions
= $options;
2666 $this->mOutputType
= OT_MSG
;
2667 $this->clearState();
2668 $text = $this->replaceVariables( $text );
2675 * Create an HTML-style tag, e.g. <yourtag>special text</yourtag>
2676 * Callback will be called with the text within
2677 * Transform and return the text within
2680 function setHook( $tag, $callback ) {
2681 $oldVal = @$this->mTagHooks
[$tag];
2682 $this->mTagHooks
[$tag] = $callback;
2689 * @package MediaWiki
2693 var $mText, $mLanguageLinks, $mCategoryLinks, $mContainsOldMagic;
2694 var $mCacheTime; # Used in ParserCache
2696 function ParserOutput( $text = '', $languageLinks = array(), $categoryLinks = array(),
2697 $containsOldMagic = false )
2699 $this->mText
= $text;
2700 $this->mLanguageLinks
= $languageLinks;
2701 $this->mCategoryLinks
= $categoryLinks;
2702 $this->mContainsOldMagic
= $containsOldMagic;
2703 $this->mCacheTime
= '';
2706 function getText() { return $this->mText
; }
2707 function getLanguageLinks() { return $this->mLanguageLinks
; }
2708 function getCategoryLinks() { return $this->mCategoryLinks
; }
2709 function getCacheTime() { return $this->mCacheTime
; }
2710 function containsOldMagic() { return $this->mContainsOldMagic
; }
2711 function setText( $text ) { return wfSetVar( $this->mText
, $text ); }
2712 function setLanguageLinks( $ll ) { return wfSetVar( $this->mLanguageLinks
, $ll ); }
2713 function setCategoryLinks( $cl ) { return wfSetVar( $this->mCategoryLinks
, $cl ); }
2714 function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic
, $com ); }
2715 function setCacheTime( $t ) { return wfSetVar( $this->mCacheTime
, $t ); }
2717 function merge( $other ) {
2718 $this->mLanguageLinks
= array_merge( $this->mLanguageLinks
, $other->mLanguageLinks
);
2719 $this->mCategoryLinks
= array_merge( $this->mCategoryLinks
, $this->mLanguageLinks
);
2720 $this->mContainsOldMagic
= $this->mContainsOldMagic ||
$other->mContainsOldMagic
;
2726 * Set options of the Parser
2728 * @package MediaWiki
2732 # All variables are private
2733 var $mUseTeX; # Use texvc to expand <math> tags
2734 var $mUseDynamicDates; # Use $wgDateFormatter to format dates
2735 var $mInterwikiMagic; # Interlanguage links are removed and returned in an array
2736 var $mAllowExternalImages; # Allow external images inline
2737 var $mSkin; # Reference to the preferred skin
2738 var $mDateFormat; # Date format index
2739 var $mEditSection; # Create "edit section" links
2740 var $mEditSectionOnRightClick; # Generate JavaScript to edit section on right click
2741 var $mNumberHeadings; # Automatically number headings
2742 var $mShowToc; # Show table of contents
2744 function getUseTeX() { return $this->mUseTeX
; }
2745 function getUseDynamicDates() { return $this->mUseDynamicDates
; }
2746 function getInterwikiMagic() { return $this->mInterwikiMagic
; }
2747 function getAllowExternalImages() { return $this->mAllowExternalImages
; }
2748 function getSkin() { return $this->mSkin
; }
2749 function getDateFormat() { return $this->mDateFormat
; }
2750 function getEditSection() { return $this->mEditSection
; }
2751 function getEditSectionOnRightClick() { return $this->mEditSectionOnRightClick
; }
2752 function getNumberHeadings() { return $this->mNumberHeadings
; }
2753 function getShowToc() { return $this->mShowToc
; }
2755 function setUseTeX( $x ) { return wfSetVar( $this->mUseTeX
, $x ); }
2756 function setUseDynamicDates( $x ) { return wfSetVar( $this->mUseDynamicDates
, $x ); }
2757 function setInterwikiMagic( $x ) { return wfSetVar( $this->mInterwikiMagic
, $x ); }
2758 function setAllowExternalImages( $x ) { return wfSetVar( $this->mAllowExternalImages
, $x ); }
2759 function setDateFormat( $x ) { return wfSetVar( $this->mDateFormat
, $x ); }
2760 function setEditSection( $x ) { return wfSetVar( $this->mEditSection
, $x ); }
2761 function setEditSectionOnRightClick( $x ) { return wfSetVar( $this->mEditSectionOnRightClick
, $x ); }
2762 function setNumberHeadings( $x ) { return wfSetVar( $this->mNumberHeadings
, $x ); }
2763 function setShowToc( $x ) { return wfSetVar( $this->mShowToc
, $x ); }
2765 function setSkin( &$x ) { $this->mSkin
=& $x; }
2767 # Get parser options
2768 /* static */ function newFromUser( &$user ) {
2769 $popts = new ParserOptions
;
2770 $popts->initialiseFromUser( $user );
2775 function initialiseFromUser( &$userInput ) {
2776 global $wgUseTeX, $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
2778 $fname = 'ParserOptions::initialiseFromUser';
2779 wfProfileIn( $fname );
2780 if ( !$userInput ) {
2782 $user->setLoaded( true );
2784 $user =& $userInput;
2787 $this->mUseTeX
= $wgUseTeX;
2788 $this->mUseDynamicDates
= $wgUseDynamicDates;
2789 $this->mInterwikiMagic
= $wgInterwikiMagic;
2790 $this->mAllowExternalImages
= $wgAllowExternalImages;
2791 wfProfileIn( $fname.'-skin' );
2792 $this->mSkin
=& $user->getSkin();
2793 wfProfileOut( $fname.'-skin' );
2794 $this->mDateFormat
= $user->getOption( 'date' );
2795 $this->mEditSection
= $user->getOption( 'editsection' );
2796 $this->mEditSectionOnRightClick
= $user->getOption( 'editsectiononrightclick' );
2797 $this->mNumberHeadings
= $user->getOption( 'numberheadings' );
2798 $this->mShowToc
= $user->getOption( 'showtoc' );
2799 wfProfileOut( $fname );
2805 # Regex callbacks, used in Parser::replaceVariables
2806 function wfBraceSubstitution( $matches ) {
2807 global $wgCurParser;
2808 return $wgCurParser->braceSubstitution( $matches );
2811 function wfArgSubstitution( $matches ) {
2812 global $wgCurParser;
2813 return $wgCurParser->argSubstitution( $matches );
2816 function wfVariableSubstitution( $matches ) {
2817 global $wgCurParser;
2818 return $wgCurParser->variableSubstitution( $matches );
2822 * Return the total number of articles
2824 function wfNumberOfArticles() {
2825 global $wgNumberOfArticles;
2828 return $wgNumberOfArticles;
2832 * Get various statistics from the database
2835 function wfLoadSiteStats() {
2836 global $wgNumberOfArticles, $wgTotalViews, $wgTotalEdits;
2837 $fname = 'wfLoadSiteStats';
2839 if ( -1 != $wgNumberOfArticles ) return;
2840 $dbr =& wfGetDB( DB_SLAVE
);
2841 $s = $dbr->getArray( 'site_stats',
2842 array( 'ss_total_views', 'ss_total_edits', 'ss_good_articles' ),
2843 array( 'ss_row_id' => 1 ), $fname
2846 if ( $s === false ) {
2849 $wgTotalViews = $s->ss_total_views
;
2850 $wgTotalEdits = $s->ss_total_edits
;
2851 $wgNumberOfArticles = $s->ss_good_articles
;
2855 function wfEscapeHTMLTagsOnly( $in ) {
2857 array( '"', '>', '<' ),
2858 array( '"', '>', '<' ),