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* Select the content language in prefs when bogus interface language is set
[mediawiki.git] / includes / Parser.php
blob911736d65308bdc03fd3cc493a9eda16cd29000c
1 <?php
2
3 /**
4 * File for Parser and related classes
5 *
6 * @package MediaWiki
7 */
8
9 /**
10 * Update this version number when the ParserOutput format
11 * changes in an incompatible way, so the parser cache
12 * can automatically discard old data.
13 */
14 define( 'MW_PARSER_VERSION', '1.4.0' );
15
16 /**
17 * Variable substitution O(N^2) attack
18 *
19 * Without countermeasures, it would be possible to attack the parser by saving
20 * a page filled with a large number of inclusions of large pages. The size of
21 * the generated page would be proportional to the square of the input size.
22 * Hence, we limit the number of inclusions of any given page, thus bringing any
23 * attack back to O(N).
24 */
25
26 define( 'MAX_INCLUDE_REPEAT', 100 );
27 define( 'MAX_INCLUDE_SIZE', 1000000 ); // 1 Million
28
29 define( 'RLH_FOR_UPDATE', 1 );
30
31 # Allowed values for $mOutputType
32 define( 'OT_HTML', 1 );
33 define( 'OT_WIKI', 2 );
34 define( 'OT_MSG' , 3 );
35
36 # string parameter for extractTags which will cause it
37 # to strip HTML comments in addition to regular
38 # <XML>-style tags. This should not be anything we
39 # may want to use in wikisyntax
40 define( 'STRIP_COMMENTS', 'HTMLCommentStrip' );
41
42 # prefix for escaping, used in two functions at least
43 define( 'UNIQ_PREFIX', 'NaodW29');
44
45 # Constants needed for external link processing
46 define( 'URL_PROTOCOLS', 'http|https|ftp|irc|gopher|news|mailto' );
47 define( 'HTTP_PROTOCOLS', 'http|https' );
48 # Everything except bracket, space, or control characters
49 define( 'EXT_LINK_URL_CLASS', '[^]<>"\\x00-\\x20\\x7F]' );
50 # Including space
51 define( 'EXT_LINK_TEXT_CLASS', '[^\]\\x00-\\x1F\\x7F]' );
52 define( 'EXT_IMAGE_FNAME_CLASS', '[A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]' );
53 define( 'EXT_IMAGE_EXTENSIONS', 'gif|png|jpg|jpeg' );
54 define( 'EXT_LINK_BRACKETED', '/\[(('.URL_PROTOCOLS.'):'.EXT_LINK_URL_CLASS.'+) *('.EXT_LINK_TEXT_CLASS.'*?)\]/S' );
55 define( 'EXT_IMAGE_REGEX',
56 '/^('.HTTP_PROTOCOLS.':)'. # Protocol
57 '('.EXT_LINK_URL_CLASS.'+)\\/'. # Hostname and path
58 '('.EXT_IMAGE_FNAME_CLASS.'+)\\.((?i)'.EXT_IMAGE_EXTENSIONS.')$/S' # Filename
59 );
60
61 /**
62 * PHP Parser
63 *
64 * Processes wiki markup
65 *
66 * <pre>
67 * There are three main entry points into the Parser class:
68 * parse()
69 * produces HTML output
70 * preSaveTransform().
71 * produces altered wiki markup.
72 * transformMsg()
73 * performs brace substitution on MediaWiki messages
74 *
75 * Globals used:
76 * objects: $wgLang, $wgDateFormatter, $wgLinkCache
77 *
78 * NOT $wgArticle, $wgUser or $wgTitle. Keep them away!
79 *
80 * settings:
81 * $wgUseTex*, $wgUseDynamicDates*, $wgInterwikiMagic*,
82 * $wgNamespacesWithSubpages, $wgAllowExternalImages*,
83 * $wgLocaltimezone
84 *
85 * * only within ParserOptions
86 * </pre>
87 *
88 * @package MediaWiki
89 */
90 class Parser
91 {
92 /**#@+
93 * @access private
94 */
95 # Persistent:
96 var $mTagHooks;
97
98 # Cleared with clearState():
99 var $mOutput, $mAutonumber, $mDTopen, $mStripState = array();
100 var $mVariables, $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
101
102 # Temporary:
103 var $mOptions, $mTitle, $mOutputType,
104 $mTemplates, // cache of already loaded templates, avoids
105 // multiple SQL queries for the same string
106 $mTemplatePath; // stores an unsorted hash of all the templates already loaded
107 // in this path. Used for loop detection.
108
109 /**#@-*/
110
111 /**
112 * Constructor
113 *
114 * @access public
115 */
116 function Parser() {
117 $this->mTemplates = array();
118 $this->mTemplatePath = array();
119 $this->mTagHooks = array();
120 $this->clearState();
121 }
122
123 /**
124 * Clear Parser state
125 *
126 * @access private
127 */
128 function clearState() {
129 $this->mOutput = new ParserOutput;
130 $this->mAutonumber = 0;
131 $this->mLastSection = "";
132 $this->mDTopen = false;
133 $this->mVariables = false;
134 $this->mIncludeCount = array();
135 $this->mStripState = array();
136 $this->mArgStack = array();
137 $this->mInPre = false;
138 }
139
140 /**
141 * First pass--just handle <nowiki> sections, pass the rest off
142 * to internalParse() which does all the real work.
143 *
144 * @access private
145 * @return ParserOutput a ParserOutput
146 */
147 function parse( $text, &$title, $options, $linestart = true, $clearState = true ) {
148 global $wgUseTidy, $wgContLang;
149 $fname = 'Parser::parse';
150 wfProfileIn( $fname );
151
152 if ( $clearState ) {
153 $this->clearState();
154 }
155
156 $this->mOptions = $options;
157 $this->mTitle =& $title;
158 $this->mOutputType = OT_HTML;
159
160 $stripState = NULL;
161 global $fnord; $fnord = 1;
162 //$text = $this->strip( $text, $this->mStripState );
163 // VOODOO MAGIC FIX! Sometimes the above segfaults in PHP5.
164 $x =& $this->mStripState;
165 $text = $this->strip( $text, $x );
166
167 $text = $this->internalParse( $text, $linestart );
168 $text = $this->unstrip( $text, $this->mStripState );
169 # Clean up special characters, only run once, next-to-last before doBlockLevels
170 if(!$wgUseTidy) {
171 $fixtags = array(
172 # french spaces, last one Guillemet-left
173 # only if there is something before the space
174 '/(.) (?=\\?|:|;|!|\\302\\273)/i' => '\\1&nbsp;\\2',
175 # french spaces, Guillemet-right
176 "/(\\302\\253) /i"=>"\\1&nbsp;",
177 '/<hr *>/i' => '<hr />',
178 '/<br *>/i' => '<br />',
179 '/<center *>/i' => '<div class="center">',
180 '/<\\/center *>/i' => '</div>',
181 # Clean up spare ampersands; note that we probably ought to be
182 # more careful about named entities.
183 '/&(?!:amp;|#[Xx][0-9A-fa-f]+;|#[0-9]+;|[a-zA-Z0-9]+;)/' => '&amp;'
184 );
185 $text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
186 } else {
187 $fixtags = array(
188 # french spaces, last one Guillemet-left
189 '/ (\\?|:|;|!|\\302\\273)/i' => '&nbsp;\\1',
190 # french spaces, Guillemet-right
191 '/(\\302\\253) /i' => '\\1&nbsp;',
192 '/<center *>/i' => '<div class="center">',
193 '/<\\/center *>/i' => '</div>'
194 );
195 $text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
196 }
197 # only once and last
198 $text = $this->doBlockLevels( $text, $linestart );
199
200 $this->replaceLinkHolders( $text );
201 $text = $wgContLang->convert($text);
202
203 $text = $this->unstripNoWiki( $text, $this->mStripState );
204 global $wgUseTidy;
205 if ($wgUseTidy) {
206 $text = Parser::tidy($text);
207 }
208
209 $this->mOutput->setText( $text );
210 wfProfileOut( $fname );
211 return $this->mOutput;
212 }
213
214 /**
215 * Get a random string
216 *
217 * @access private
218 * @static
219 */
220 function getRandomString() {
221 return dechex(mt_rand(0, 0x7fffffff)) . dechex(mt_rand(0, 0x7fffffff));
222 }
223
224 /**
225 * Replaces all occurrences of <$tag>content</$tag> in the text
226 * with a random marker and returns the new text. the output parameter
227 * $content will be an associative array filled with data on the form
228 * $unique_marker => content.
229 *
230 * If $content is already set, the additional entries will be appended
231 * If $tag is set to STRIP_COMMENTS, the function will extract
232 * <!-- HTML comments -->
233 *
234 * @access private
235 * @static
236 */
237 function extractTags($tag, $text, &$content, $uniq_prefix = ''){
238 $rnd = $uniq_prefix . '-' . $tag . Parser::getRandomString();
239 if ( !$content ) {
240 $content = array( );
241 }
242 $n = 1;
243 $stripped = '';
244
245 while ( '' != $text ) {
246 if($tag==STRIP_COMMENTS) {
247 $p = preg_split( '/<!--/i', $text, 2 );
248 } else {
249 $p = preg_split( "/<\\s*$tag\\s*>/i", $text, 2 );
250 }
251 $stripped .= $p[0];
252 if ( ( count( $p ) < 2 ) || ( '' == $p[1] ) ) {
253 $text = '';
254 } else {
255 if($tag==STRIP_COMMENTS) {
256 $q = preg_split( '/-->/i', $p[1], 2 );
257 } else {
258 $q = preg_split( "/<\\/\\s*$tag\\s*>/i", $p[1], 2 );
259 }
260 $marker = $rnd . sprintf('%08X', $n++);
261 $content[$marker] = $q[0];
262 $stripped .= $marker;
263 $text = $q[1];
264 }
265 }
266 return $stripped;
267 }
268
269 /**
270 * Strips and renders nowiki, pre, math, hiero
271 * If $render is set, performs necessary rendering operations on plugins
272 * Returns the text, and fills an array with data needed in unstrip()
273 * If the $state is already a valid strip state, it adds to the state
274 *
275 * @param bool $stripcomments when set, HTML comments <!-- like this -->
276 * will be stripped in addition to other tags. This is important
277 * for section editing, where these comments cause confusion when
278 * counting the sections in the wikisource
279 *
280 * @access private
281 */
282 function strip( $text, &$state, $stripcomments = false ) {
283 $render = ($this->mOutputType == OT_HTML);
284 $html_content = array();
285 $nowiki_content = array();
286 $math_content = array();
287 $pre_content = array();
288 $comment_content = array();
289 $ext_content = array();
290 $gallery_content = array();
291
292 # Replace any instances of the placeholders
293 $uniq_prefix = UNIQ_PREFIX;
294 #$text = str_replace( $uniq_prefix, wfHtmlEscapeFirst( $uniq_prefix ), $text );
295
296 # html
297 global $wgRawHtml, $wgWhitelistEdit;
298 if( $wgRawHtml && $wgWhitelistEdit ) {
299 $text = Parser::extractTags('html', $text, $html_content, $uniq_prefix);
300 foreach( $html_content as $marker => $content ) {
301 if ($render ) {
302 # Raw and unchecked for validity.
303 $html_content[$marker] = $content;
304 } else {
305 $html_content[$marker] = '<html>'.$content.'</html>';
306 }
307 }
308 }
309
310 # nowiki
311 $text = Parser::extractTags('nowiki', $text, $nowiki_content, $uniq_prefix);
312 foreach( $nowiki_content as $marker => $content ) {
313 if( $render ){
314 $nowiki_content[$marker] = wfEscapeHTMLTagsOnly( $content );
315 } else {
316 $nowiki_content[$marker] = '<nowiki>'.$content.'</nowiki>';
317 }
318 }
319
320 # math
321 $text = Parser::extractTags('math', $text, $math_content, $uniq_prefix);
322 foreach( $math_content as $marker => $content ){
323 if( $render ) {
324 if( $this->mOptions->getUseTeX() ) {
325 $math_content[$marker] = renderMath( $content );
326 } else {
327 $math_content[$marker] = '&lt;math&gt;'.$content.'&lt;math&gt;';
328 }
329 } else {
330 $math_content[$marker] = '<math>'.$content.'</math>';
331 }
332 }
333
334 # pre
335 $text = Parser::extractTags('pre', $text, $pre_content, $uniq_prefix);
336 foreach( $pre_content as $marker => $content ){
337 if( $render ){
338 $pre_content[$marker] = '<pre>' . wfEscapeHTMLTagsOnly( $content ) . '</pre>';
339 } else {
340 $pre_content[$marker] = '<pre>'.$content.'</pre>';
341 }
342 }
343
344 # gallery
345 $text = Parser::extractTags('gallery', $text, $gallery_content, $uniq_prefix);
346 foreach( $gallery_content as $marker => $content ) {
347 require_once( 'ImageGallery.php' );
348 if ( $render ) {
349 $gallery_content[$marker] = Parser::renderImageGallery( $content );
350 } else {
351 $gallery_content[$marker] = '<gallery>'.$content.'</gallery>';
352 }
353 }
354
355 # Comments
356 if($stripcomments) {
357 $text = Parser::extractTags(STRIP_COMMENTS, $text, $comment_content, $uniq_prefix);
358 foreach( $comment_content as $marker => $content ){
359 $comment_content[$marker] = '<!--'.$content.'-->';
360 }
361 }
362
363 # Extensions
364 foreach ( $this->mTagHooks as $tag => $callback ) {
365 $ext_contents[$tag] = array();
366 $text = Parser::extractTags( $tag, $text, $ext_content[$tag], $uniq_prefix );
367 foreach( $ext_content[$tag] as $marker => $content ) {
368 if ( $render ) {
369 $ext_content[$tag][$marker] = $callback( $content );
370 } else {
371 $ext_content[$tag][$marker] = "<$tag>$content</$tag>";
372 }
373 }
374 }
375
376 # Merge state with the pre-existing state, if there is one
377 if ( $state ) {
378 $state['html'] = $state['html'] + $html_content;
379 $state['nowiki'] = $state['nowiki'] + $nowiki_content;
380 $state['math'] = $state['math'] + $math_content;
381 $state['pre'] = $state['pre'] + $pre_content;
382 $state['comment'] = $state['comment'] + $comment_content;
383 $state['gallery'] = $state['gallery'] + $gallery_content;
384
385 foreach( $ext_content as $tag => $array ) {
386 if ( array_key_exists( $tag, $state ) ) {
387 $state[$tag] = $state[$tag] + $array;
388 }
389 }
390 } else {
391 $state = array(
392 'html' => $html_content,
393 'nowiki' => $nowiki_content,
394 'math' => $math_content,
395 'pre' => $pre_content,
396 'comment' => $comment_content,
397 'gallery' => $gallery_content,
398 ) + $ext_content;
399 }
400 return $text;
401 }
402
403 /**
404 * restores pre, math, and hiero removed by strip()
405 *
406 * always call unstripNoWiki() after this one
407 * @access private
408 */
409 function unstrip( $text, &$state ) {
410 # Must expand in reverse order, otherwise nested tags will be corrupted
411 $contentDict = end( $state );
412 for ( $contentDict = end( $state ); $contentDict !== false; $contentDict = prev( $state ) ) {
413 if( key($state) != 'nowiki' && key($state) != 'html') {
414 for ( $content = end( $contentDict ); $content !== false; $content = prev( $contentDict ) ) {
415 $text = str_replace( key( $contentDict ), $content, $text );
416 }
417 }
418 }
419
420 return $text;
421 }
422
423 /**
424 * always call this after unstrip() to preserve the order
425 *
426 * @access private
427 */
428 function unstripNoWiki( $text, &$state ) {
429 # Must expand in reverse order, otherwise nested tags will be corrupted
430 for ( $content = end($state['nowiki']); $content !== false; $content = prev( $state['nowiki'] ) ) {
431 $text = str_replace( key( $state['nowiki'] ), $content, $text );
432 }
433
434 global $wgRawHtml;
435 if ($wgRawHtml) {
436 for ( $content = end($state['html']); $content !== false; $content = prev( $state['html'] ) ) {
437 $text = str_replace( key( $state['html'] ), $content, $text );
438 }
439 }
440
441 return $text;
442 }
443
444 /**
445 * Add an item to the strip state
446 * Returns the unique tag which must be inserted into the stripped text
447 * The tag will be replaced with the original text in unstrip()
448 *
449 * @access private
450 */
451 function insertStripItem( $text, &$state ) {
452 $rnd = UNIQ_PREFIX . '-item' . Parser::getRandomString();
453 if ( !$state ) {
454 $state = array(
455 'html' => array(),
456 'nowiki' => array(),
457 'math' => array(),
458 'pre' => array()
459 );
460 }
461 $state['item'][$rnd] = $text;
462 return $rnd;
463 }
464
465 /**
466 * Return allowed HTML attributes
467 *
468 * @access private
469 */
470 function getHTMLattrs () {
471 $htmlattrs = array( # Allowed attributes--no scripting, etc.
472 'title', 'align', 'lang', 'dir', 'width', 'height',
473 'bgcolor', 'clear', /* BR */ 'noshade', /* HR */
474 'cite', /* BLOCKQUOTE, Q */ 'size', 'face', 'color',
475 /* FONT */ 'type', 'start', 'value', 'compact',
476 /* For various lists, mostly deprecated but safe */
477 'summary', 'width', 'border', 'frame', 'rules',
478 'cellspacing', 'cellpadding', 'valign', 'char',
479 'charoff', 'colgroup', 'col', 'span', 'abbr', 'axis',
480 'headers', 'scope', 'rowspan', 'colspan', /* Tables */
481 'id', 'class', 'name', 'style' /* For CSS */
482 );
483 return $htmlattrs ;
484 }
485
486 /**
487 * Remove non approved attributes and javascript in css
488 *
489 * @access private
490 */
491 function fixTagAttributes ( $t ) {
492 if ( trim ( $t ) == '' ) return '' ; # Saves runtime ;-)
493 $htmlattrs = $this->getHTMLattrs() ;
494
495 # Strip non-approved attributes from the tag
496 $t = preg_replace(
497 '/(\\w+)(\\s*=\\s*([^\\s\">]+|\"[^\">]*\"))?/e',
498 "(in_array(strtolower(\"\$1\"),\$htmlattrs)?(\"\$1\".((\"x\$3\" != \"x\")?\"=\$3\":'')):'')",
499 $t);
500
501 $t = str_replace ( '<></>' , '' , $t ) ; # This should fix bug 980557
502
503 # Strip javascript "expression" from stylesheets. Brute force approach:
504 # If anythin offensive is found, all attributes of the HTML tag are dropped
505
506 if( preg_match(
507 '/style\\s*=.*(expression|tps*:\/\/|url\\s*\().*/is',
508 wfMungeToUtf8( $t ) ) )
509 {
510 $t='';
511 }
512
513 return trim ( $t ) ;
514 }
515
516 /**
517 * interface with html tidy, used if $wgUseTidy = true
518 *
519 * @access public
520 * @static
521 */
522 function tidy ( $text ) {
523 global $wgTidyConf, $wgTidyBin, $wgTidyOpts;
524 global $wgInputEncoding, $wgOutputEncoding;
525 $fname = 'Parser::tidy';
526 wfProfileIn( $fname );
527
528 $cleansource = '';
529 $opts = '';
530 switch(strtoupper($wgOutputEncoding)) {
531 case 'ISO-8859-1':
532 $opts .= ($wgInputEncoding == $wgOutputEncoding)? ' -latin1':' -raw';
533 break;
534 case 'UTF-8':
535 $opts .= ($wgInputEncoding == $wgOutputEncoding)? ' -utf8':' -raw';
536 break;
537 default:
538 $opts .= ' -raw';
539 }
540
541 $wrappedtext = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'.
542 ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>'.
543 '<head><title>test</title></head><body>'.$text.'</body></html>';
544 $descriptorspec = array(
545 0 => array('pipe', 'r'),
546 1 => array('pipe', 'w'),
547 2 => array('file', '/dev/null', 'a')
548 );
549 $process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes);
550 if (is_resource($process)) {
551 fwrite($pipes[0], $wrappedtext);
552 fclose($pipes[0]);
553 while (!feof($pipes[1])) {
554 $cleansource .= fgets($pipes[1], 1024);
555 }
556 fclose($pipes[1]);
557 $return_value = proc_close($process);
558 }
559
560 wfProfileOut( $fname );
561
562 if( $cleansource == '' && $text != '') {
563 wfDebug( "Tidy error detected!\n" );
564 return $text . "\n<!-- Tidy found serious XHTML errors -->\n";
565 } else {
566 return $cleansource;
567 }
568 }
569
570 /**
571 * parse the wiki syntax used to render tables
572 *
573 * @access private
574 */
575 function doTableStuff ( $t ) {
576 $fname = 'Parser::doTableStuff';
577 wfProfileIn( $fname );
578
579 $t = explode ( "\n" , $t ) ;
580 $td = array () ; # Is currently a td tag open?
581 $ltd = array () ; # Was it TD or TH?
582 $tr = array () ; # Is currently a tr tag open?
583 $ltr = array () ; # tr attributes
584 $indent_level = 0; # indent level of the table
585 foreach ( $t AS $k => $x )
586 {
587 $x = trim ( $x ) ;
588 $fc = substr ( $x , 0 , 1 ) ;
589 if ( preg_match( '/^(:*)\{\|(.*)$/', $x, $matches ) ) {
590 $indent_level = strlen( $matches[1] );
591 $t[$k] = "\n" .
592 str_repeat( '<dl><dd>', $indent_level ) .
593 '<table ' . $this->fixTagAttributes ( $matches[2] ) . '>' ;
594 array_push ( $td , false ) ;
595 array_push ( $ltd , '' ) ;
596 array_push ( $tr , false ) ;
597 array_push ( $ltr , '' ) ;
598 }
599 else if ( count ( $td ) == 0 ) { } # Don't do any of the following
600 else if ( '|}' == substr ( $x , 0 , 2 ) ) {
601 $z = "</table>\n" ;
602 $l = array_pop ( $ltd ) ;
603 if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
604 if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
605 array_pop ( $ltr ) ;
606 $t[$k] = $z . str_repeat( '</dd></dl>', $indent_level );
607 }
608 else if ( '|-' == substr ( $x , 0 , 2 ) ) { # Allows for |---------------
609 $x = substr ( $x , 1 ) ;
610 while ( $x != '' && substr ( $x , 0 , 1 ) == '-' ) $x = substr ( $x , 1 ) ;
611 $z = '' ;
612 $l = array_pop ( $ltd ) ;
613 if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
614 if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
615 array_pop ( $ltr ) ;
616 $t[$k] = $z ;
617 array_push ( $tr , false ) ;
618 array_push ( $td , false ) ;
619 array_push ( $ltd , '' ) ;
620 array_push ( $ltr , $this->fixTagAttributes ( $x ) ) ;
621 }
622 else if ( '|' == $fc || '!' == $fc || '|+' == substr ( $x , 0 , 2 ) ) { # Caption
623 # $x is a table row
624 if ( '|+' == substr ( $x , 0 , 2 ) ) {
625 $fc = '+' ;
626 $x = substr ( $x , 1 ) ;
627 }
628 $after = substr ( $x , 1 ) ;
629 if ( $fc == '!' ) $after = str_replace ( '!!' , '||' , $after ) ;
630 $after = explode ( '||' , $after ) ;
631 $t[$k] = '' ;
632
633 # Loop through each table cell
634 foreach ( $after AS $theline )
635 {
636 $z = '' ;
637 if ( $fc != '+' )
638 {
639 $tra = array_pop ( $ltr ) ;
640 if ( !array_pop ( $tr ) ) $z = '<tr '.$tra.">\n" ;
641 array_push ( $tr , true ) ;
642 array_push ( $ltr , '' ) ;
643 }
644
645 $l = array_pop ( $ltd ) ;
646 if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
647 if ( $fc == '|' ) $l = 'td' ;
648 else if ( $fc == '!' ) $l = 'th' ;
649 else if ( $fc == '+' ) $l = 'caption' ;
650 else $l = '' ;
651 array_push ( $ltd , $l ) ;
652
653 # Cell parameters
654 $y = explode ( '|' , $theline , 2 ) ;
655 # Note that a '|' inside an invalid link should not
656 # be mistaken as delimiting cell parameters
657 if ( strpos( $y[0], '[[' ) !== false ) {
658 $y = array ($theline);
659 }
660 if ( count ( $y ) == 1 )
661 $y = "{$z}<{$l}>{$y[0]}" ;
662 else $y = $y = "{$z}<{$l} ".$this->fixTagAttributes($y[0]).">{$y[1]}" ;
663 $t[$k] .= $y ;
664 array_push ( $td , true ) ;
665 }
666 }
667 }
668
669 # Closing open td, tr && table
670 while ( count ( $td ) > 0 )
671 {
672 if ( array_pop ( $td ) ) $t[] = '</td>' ;
673 if ( array_pop ( $tr ) ) $t[] = '</tr>' ;
674 $t[] = '</table>' ;
675 }
676
677 $t = implode ( "\n" , $t ) ;
678 # $t = $this->removeHTMLtags( $t );
679 wfProfileOut( $fname );
680 return $t ;
681 }
682
683 /**
684 * Helper function for parse() that transforms wiki markup into
685 * HTML. Only called for $mOutputType == OT_HTML.
686 *
687 * @access private
688 */
689 function internalParse( $text, $linestart, $args = array(), $isMain=true ) {
690 global $wgContLang;
691
692 $fname = 'Parser::internalParse';
693 wfProfileIn( $fname );
694
695 $text = $this->removeHTMLtags( $text );
696 $text = $this->replaceVariables( $text, $args );
697
698 $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
699
700 $text = $this->doHeadings( $text );
701 if($this->mOptions->getUseDynamicDates()) {
702 global $wgDateFormatter;
703 $text = $wgDateFormatter->reformat( $this->mOptions->getDateFormat(), $text );
704 }
705 $text = $this->doAllQuotes( $text );
706 $text = $this->replaceInternalLinks( $text );
707 $text = $this->replaceExternalLinks( $text );
708
709 # replaceInternalLinks may sometimes leave behind
710 # absolute URLs, which have to be masked to hide them from replaceExternalLinks
711 $text = str_replace("http-noparse://","http://",$text);
712
713 $text = $this->doMagicLinks( $text );
714 $text = $this->doTableStuff( $text );
715 $text = $this->formatHeadings( $text, $isMain );
716
717 wfProfileOut( $fname );
718 return $text;
719 }
720
721 /**
722 * Replace special strings like "ISBN xxx" and "RFC xxx" with
723 * magic external links.
724 *
725 * @access private
726 */
727 function &doMagicLinks( &$text ) {
728 global $wgUseGeoMode;
729 $text = $this->magicISBN( $text );
730 if ( isset( $wgUseGeoMode ) && $wgUseGeoMode ) {
731 $text = $this->magicGEO( $text );
732 }
733 $text = $this->magicRFC( $text, 'RFC ', 'rfcurl' );
734 $text = $this->magicRFC( $text, 'PMID ', 'pubmedurl' );
735 return $text;
736 }
737
738 /**
739 * Parse ^^ tokens and return html
740 *
741 * @access private
742 */
743 function doExponent( $text ) {
744 $fname = 'Parser::doExponent';
745 wfProfileIn( $fname );
746 $text = preg_replace('/\^\^(.*)\^\^/','<small><sup>\\1</sup></small>', $text);
747 wfProfileOut( $fname );
748 return $text;
749 }
750
751 /**
752 * Parse headers and return html
753 *
754 * @access private
755 */
756 function doHeadings( $text ) {
757 $fname = 'Parser::doHeadings';
758 wfProfileIn( $fname );
759 for ( $i = 6; $i >= 1; --$i ) {
760 $h = substr( '======', 0, $i );
761 $text = preg_replace( "/^{$h}(.+){$h}(\\s|$)/m",
762 "<h{$i}>\\1</h{$i}>\\2", $text );
763 }
764 wfProfileOut( $fname );
765 return $text;
766 }
767
768 /**
769 * Replace single quotes with HTML markup
770 * @access private
771 * @return string the altered text
772 */
773 function doAllQuotes( $text ) {
774 $fname = 'Parser::doAllQuotes';
775 wfProfileIn( $fname );
776 $outtext = '';
777 $lines = explode( "\n", $text );
778 foreach ( $lines as $line ) {
779 $outtext .= $this->doQuotes ( $line ) . "\n";
780 }
781 $outtext = substr($outtext, 0,-1);
782 wfProfileOut( $fname );
783 return $outtext;
784 }
785
786 /**
787 * Helper function for doAllQuotes()
788 * @access private
789 */
790 function doQuotes( $text ) {
791 $arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE );
792 if ( count( $arr ) == 1 )
793 return $text;
794 else
795 {
796 # First, do some preliminary work. This may shift some apostrophes from
797 # being mark-up to being text. It also counts the number of occurrences
798 # of bold and italics mark-ups.
799 $i = 0;
800 $numbold = 0;
801 $numitalics = 0;
802 foreach ( $arr as $r )
803 {
804 if ( ( $i % 2 ) == 1 )
805 {
806 # If there are ever four apostrophes, assume the first is supposed to
807 # be text, and the remaining three constitute mark-up for bold text.
808 if ( strlen( $arr[$i] ) == 4 )
809 {
810 $arr[$i-1] .= "'";
811 $arr[$i] = "'''";
812 }
813 # If there are more than 5 apostrophes in a row, assume they're all
814 # text except for the last 5.
815 else if ( strlen( $arr[$i] ) > 5 )
816 {
817 $arr[$i-1] .= str_repeat( "'", strlen( $arr[$i] ) - 5 );
818 $arr[$i] = "'''''";
819 }
820 # Count the number of occurrences of bold and italics mark-ups.
821 # We are not counting sequences of five apostrophes.
822 if ( strlen( $arr[$i] ) == 2 ) $numitalics++; else
823 if ( strlen( $arr[$i] ) == 3 ) $numbold++; else
824 if ( strlen( $arr[$i] ) == 5 ) { $numitalics++; $numbold++; }
825 }
826 $i++;
827 }
828
829 # If there is an odd number of both bold and italics, it is likely
830 # that one of the bold ones was meant to be an apostrophe followed
831 # by italics. Which one we cannot know for certain, but it is more
832 # likely to be one that has a single-letter word before it.
833 if ( ( $numbold % 2 == 1 ) && ( $numitalics % 2 == 1 ) )
834 {
835 $i = 0;
836 $firstsingleletterword = -1;
837 $firstmultiletterword = -1;
838 $firstspace = -1;
839 foreach ( $arr as $r )
840 {
841 if ( ( $i % 2 == 1 ) and ( strlen( $r ) == 3 ) )
842 {
843 $x1 = substr ($arr[$i-1], -1);
844 $x2 = substr ($arr[$i-1], -2, 1);
845 if ($x1 == ' ') {
846 if ($firstspace == -1) $firstspace = $i;
847 } else if ($x2 == ' ') {
848 if ($firstsingleletterword == -1) $firstsingleletterword = $i;
849 } else {
850 if ($firstmultiletterword == -1) $firstmultiletterword = $i;
851 }
852 }
853 $i++;
854 }
855
856 # If there is a single-letter word, use it!
857 if ($firstsingleletterword > -1)
858 {
859 $arr [ $firstsingleletterword ] = "''";
860 $arr [ $firstsingleletterword-1 ] .= "'";
861 }
862 # If not, but there's a multi-letter word, use that one.
863 else if ($firstmultiletterword > -1)
864 {
865 $arr [ $firstmultiletterword ] = "''";
866 $arr [ $firstmultiletterword-1 ] .= "'";
867 }
868 # ... otherwise use the first one that has neither.
869 # (notice that it is possible for all three to be -1 if, for example,
870 # there is only one pentuple-apostrophe in the line)
871 else if ($firstspace > -1)
872 {
873 $arr [ $firstspace ] = "''";
874 $arr [ $firstspace-1 ] .= "'";
875 }
876 }
877
878 # Now let's actually convert our apostrophic mush to HTML!
879 $output = '';
880 $buffer = '';
881 $state = '';
882 $i = 0;
883 foreach ($arr as $r)
884 {
885 if (($i % 2) == 0)
886 {
887 if ($state == 'both')
888 $buffer .= $r;
889 else
890 $output .= $r;
891 }
892 else
893 {
894 if (strlen ($r) == 2)
895 {
896 if ($state == 'i')
897 { $output .= '</i>'; $state = ''; }
898 else if ($state == 'bi')
899 { $output .= '</i>'; $state = 'b'; }
900 else if ($state == 'ib')
901 { $output .= '</b></i><b>'; $state = 'b'; }
902 else if ($state == 'both')
903 { $output .= '<b><i>'.$buffer.'</i>'; $state = 'b'; }
904 else # $state can be 'b' or ''
905 { $output .= '<i>'; $state .= 'i'; }
906 }
907 else if (strlen ($r) == 3)
908 {
909 if ($state == 'b')
910 { $output .= '</b>'; $state = ''; }
911 else if ($state == 'bi')
912 { $output .= '</i></b><i>'; $state = 'i'; }
913 else if ($state == 'ib')
914 { $output .= '</b>'; $state = 'i'; }
915 else if ($state == 'both')
916 { $output .= '<i><b>'.$buffer.'</b>'; $state = 'i'; }
917 else # $state can be 'i' or ''
918 { $output .= '<b>'; $state .= 'b'; }
919 }
920 else if (strlen ($r) == 5)
921 {
922 if ($state == 'b')
923 { $output .= '</b><i>'; $state = 'i'; }
924 else if ($state == 'i')
925 { $output .= '</i><b>'; $state = 'b'; }
926 else if ($state == 'bi')
927 { $output .= '</i></b>'; $state = ''; }
928 else if ($state == 'ib')
929 { $output .= '</b></i>'; $state = ''; }
930 else if ($state == 'both')
931 { $output .= '<i><b>'.$buffer.'</b></i>'; $state = ''; }
932 else # ($state == '')
933 { $buffer = ''; $state = 'both'; }
934 }
935 }
936 $i++;
937 }
938 # Now close all remaining tags. Notice that the order is important.
939 if ($state == 'b' || $state == 'ib')
940 $output .= '</b>';
941 if ($state == 'i' || $state == 'bi' || $state == 'ib')
942 $output .= '</i>';
943 if ($state == 'bi')
944 $output .= '</b>';
945 if ($state == 'both')
946 $output .= '<b><i>'.$buffer.'</i></b>';
947 return $output;
948 }
949 }
950
951 /**
952 * Replace external links
953 *
954 * Note: this is all very hackish and the order of execution matters a lot.
955 * Make sure to run maintenance/parserTests.php if you change this code.
956 *
957 * @access private
958 */
959 function replaceExternalLinks( $text ) {
960 $fname = 'Parser::replaceExternalLinks';
961 wfProfileIn( $fname );
962
963 $sk =& $this->mOptions->getSkin();
964 global $wgContLang;
965 $linktrail = $wgContLang->linkTrail();
966
967 $bits = preg_split( EXT_LINK_BRACKETED, $text, -1, PREG_SPLIT_DELIM_CAPTURE );
968
969 $s = $this->replaceFreeExternalLinks( array_shift( $bits ) );
970
971 $i = 0;
972 while ( $i<count( $bits ) ) {
973 $url = $bits[$i++];
974 $protocol = $bits[$i++];
975 $text = $bits[$i++];
976 $trail = $bits[$i++];
977
978 # The characters '<' and '>' (which were escaped by
979 # removeHTMLtags()) should not be included in
980 # URLs, per RFC 2396.
981 if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) {
982 $text = substr($url, $m2[0][1]) . ' ' . $text;
983 $url = substr($url, 0, $m2[0][1]);
984 }
985
986 # If the link text is an image URL, replace it with an <img> tag
987 # This happened by accident in the original parser, but some people used it extensively
988 $img = $this->maybeMakeImageLink( $text );
989 if ( $img !== false ) {
990 $text = $img;
991 }
992
993 $dtrail = '';
994
995 # No link text, e.g. [http://domain.tld/some.link]
996 if ( $text == '' ) {
997 # Autonumber if allowed
998 if ( strpos( HTTP_PROTOCOLS, $protocol ) !== false ) {
999 $text = '[' . ++$this->mAutonumber . ']';
1000 } else {
1001 # Otherwise just use the URL
1002 $text = htmlspecialchars( $url );
1003 }
1004 } else {
1005 # Have link text, e.g. [http://domain.tld/some.link text]s
1006 # Check for trail
1007 if ( preg_match( $linktrail, $trail, $m2 ) ) {
1008 $dtrail = $m2[1];
1009 $trail = $m2[2];
1010 }
1011 }
1012
1013 $encUrl = htmlspecialchars( $url );
1014 # Bit in parentheses showing the URL for the printable version
1015 if( $url == $text || preg_match( "!$protocol://" . preg_quote( $text, '/' ) . "/?$!", $url ) ) {
1016 $paren = '';
1017 } else {
1018 # Expand the URL for printable version
1019 if ( ! $sk->suppressUrlExpansion() ) {
1020 $paren = "<span class='urlexpansion'> (<i>" . htmlspecialchars ( $encUrl ) . "</i>)</span>";
1021 } else {
1022 $paren = '';
1023 }
1024 }
1025
1026 # Process the trail (i.e. everything after this link up until start of the next link),
1027 # replacing any non-bracketed links
1028 $trail = $this->replaceFreeExternalLinks( $trail );
1029
1030 # Use the encoded URL
1031 # This means that users can paste URLs directly into the text
1032 # Funny characters like &ouml; aren't valid in URLs anyway
1033 # This was changed in August 2004
1034 $s .= $sk->makeExternalLink( $url, $text, false ) . $dtrail. $paren . $trail;
1035 }
1036
1037 wfProfileOut( $fname );
1038 return $s;
1039 }
1040
1041 /**
1042 * Replace anything that looks like a URL with a link
1043 * @access private
1044 */
1045 function replaceFreeExternalLinks( $text ) {
1046 $fname = 'Parser::replaceFreeExternalLinks';
1047 wfProfileIn( $fname );
1048
1049 $bits = preg_split( '/((?:'.URL_PROTOCOLS.'):)/S', $text, -1, PREG_SPLIT_DELIM_CAPTURE );
1050 $s = array_shift( $bits );
1051 $i = 0;
1052
1053 $sk =& $this->mOptions->getSkin();
1054
1055 while ( $i < count( $bits ) ){
1056 $protocol = $bits[$i++];
1057 $remainder = $bits[$i++];
1058
1059 if ( preg_match( '/^('.EXT_LINK_URL_CLASS.'+)(.*)$/s', $remainder, $m ) ) {
1060 # Found some characters after the protocol that look promising
1061 $url = $protocol . $m[1];
1062 $trail = $m[2];
1063
1064 # The characters '<' and '>' (which were escaped by
1065 # removeHTMLtags()) should not be included in
1066 # URLs, per RFC 2396.
1067 if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) {
1068 $trail = substr($url, $m2[0][1]) . $trail;
1069 $url = substr($url, 0, $m2[0][1]);
1070 }
1071
1072 # Move trailing punctuation to $trail
1073 $sep = ',;\.:!?';
1074 # If there is no left bracket, then consider right brackets fair game too
1075 if ( strpos( $url, '(' ) === false ) {
1076 $sep .= ')';
1077 }
1078
1079 $numSepChars = strspn( strrev( $url ), $sep );
1080 if ( $numSepChars ) {
1081 $trail = substr( $url, -$numSepChars ) . $trail;
1082 $url = substr( $url, 0, -$numSepChars );
1083 }
1084
1085 # Replace &amp; from obsolete syntax with &.
1086 # All HTML entities will be escaped by makeExternalLink()
1087 # or maybeMakeImageLink()
1088 $url = str_replace( '&amp;', '&', $url );
1089
1090 # Is this an external image?
1091 $text = $this->maybeMakeImageLink( $url );
1092 if ( $text === false ) {
1093 # Not an image, make a link
1094 $text = $sk->makeExternalLink( $url, $url );
1095 }
1096 $s .= $text . $trail;
1097 } else {
1098 $s .= $protocol . $remainder;
1099 }
1100 }
1101 wfProfileOut();
1102 return $s;
1103 }
1104
1105 /**
1106 * make an image if it's allowed
1107 * @access private
1108 */
1109 function maybeMakeImageLink( $url ) {
1110 $sk =& $this->mOptions->getSkin();
1111 $text = false;
1112 if ( $this->mOptions->getAllowExternalImages() ) {
1113 if ( preg_match( EXT_IMAGE_REGEX, $url ) ) {
1114 # Image found
1115 $text = $sk->makeImage( htmlspecialchars( $url ) );
1116 }
1117 }
1118 return $text;
1119 }
1120
1121 /**
1122 * Process [[ ]] wikilinks
1123 *
1124 * @access private
1125 */
1126
1127 function replaceInternalLinks( $s ) {
1128 global $wgLang, $wgContLang, $wgLinkCache;
1129 global $wgDisableLangConversion;
1130 static $fname = 'Parser::replaceInternalLinks' ;
1131
1132 wfProfileIn( $fname );
1133
1134 wfProfileIn( $fname.'-setup' );
1135 static $tc = FALSE;
1136 # the % is needed to support urlencoded titles as well
1137 if ( !$tc ) { $tc = Title::legalChars() . '#%'; }
1138
1139 $sk =& $this->mOptions->getSkin();
1140 global $wgUseOldExistenceCheck;
1141 # "Post-parse link colour check" works only on wiki text since it's now
1142 # in Parser. Enable it, then disable it when we're done.
1143 $saveParseColour = $sk->postParseLinkColour( !$wgUseOldExistenceCheck );
1144
1145 $redirect = MagicWord::get ( MAG_REDIRECT ) ;
1146
1147 #split the entire text string on occurences of [[
1148 $a = explode( '[[', ' ' . $s );
1149 #get the first element (all text up to first [[), and remove the space we added
1150 $s = array_shift( $a );
1151 $s = substr( $s, 1 );
1152
1153 # Match a link having the form [[namespace:link|alternate]]trail
1154 static $e1 = FALSE;
1155 if ( !$e1 ) { $e1 = "/^([{$tc}]+)(?:\\|([^]]+))?]](.*)\$/sD"; }
1156 # Match cases where there is no "]]", which might still be images
1157 static $e1_img = FALSE;
1158 if ( !$e1_img ) { $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD"; }
1159 # Match the end of a line for a word that's not followed by whitespace,
1160 # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
1161 static $e2 = '/^(.*?)([a-zA-Z\x80-\xff]+)$/sD';
1162
1163 $useLinkPrefixExtension = $wgContLang->linkPrefixExtension();
1164
1165 $nottalk = !Namespace::isTalk( $this->mTitle->getNamespace() );
1166
1167 if ( $useLinkPrefixExtension ) {
1168 if ( preg_match( $e2, $s, $m ) ) {
1169 $first_prefix = $m[2];
1170 $s = $m[1];
1171 } else {
1172 $first_prefix = false;
1173 }
1174 } else {
1175 $prefix = '';
1176 }
1177
1178 $selflink = $this->mTitle->getPrefixedText();
1179 wfProfileOut( $fname.'-setup' );
1180
1181 $checkVariantLink = sizeof($wgContLang->getVariants())>1;
1182 $useSubpages = $this->areSubpagesAllowed();
1183
1184 # Loop for each link
1185 for ($k = 0; isset( $a[$k] ); $k++) {
1186 $line = $a[$k];
1187 if ( $useLinkPrefixExtension ) {
1188 wfProfileIn( $fname.'-prefixhandling' );
1189 if ( preg_match( $e2, $s, $m ) ) {
1190 $prefix = $m[2];
1191 $s = $m[1];
1192 } else {
1193 $prefix='';
1194 }
1195 # first link
1196 if($first_prefix) {
1197 $prefix = $first_prefix;
1198 $first_prefix = false;
1199 }
1200 wfProfileOut( $fname.'-prefixhandling' );
1201 }
1202
1203 $might_be_img = false;
1204
1205 if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
1206 $text = $m[2];
1207 # fix up urlencoded title texts
1208 if(preg_match('/%/', $m[1] )) $m[1] = urldecode($m[1]);
1209 $trail = $m[3];
1210 } elseif( preg_match($e1_img, $line, $m) ) { # Invalid, but might be an image with a link in its caption
1211 $might_be_img = true;
1212 $text = $m[2];
1213 if(preg_match('/%/', $m[1] )) $m[1] = urldecode($m[1]);
1214 $trail = "";
1215 } else { # Invalid form; output directly
1216 $s .= $prefix . '[[' . $line ;
1217 continue;
1218 }
1219
1220 # Don't allow internal links to pages containing
1221 # PROTO: where PROTO is a valid URL protocol; these
1222 # should be external links.
1223 if (preg_match('/^((?:'.URL_PROTOCOLS.'):)/', $m[1])) {
1224 $s .= $prefix . '[[' . $line ;
1225 continue;
1226 }
1227
1228 # Make subpage if necessary
1229 if( $useSubpages ) {
1230 $link = $this->maybeDoSubpageLink( $m[1], $text );
1231 } else {
1232 $link = $m[1];
1233 }
1234
1235 $noforce = (substr($m[1], 0, 1) != ':');
1236 if (!$noforce) {
1237 # Strip off leading ':'
1238 $link = substr($link, 1);
1239 }
1240
1241 $nt =& Title::newFromText( $this->unstripNoWiki($link, $this->mStripState) );
1242 if( !$nt ) {
1243 $s .= $prefix . '[[' . $line;
1244 continue;
1245 }
1246
1247 #check other language variants of the link
1248 #if the article does not exist
1249 if( $checkVariantLink
1250 && $nt->getArticleID() == 0 ) {
1251 $wgContLang->findVariantLink($link, $nt);
1252 }
1253
1254 $ns = $nt->getNamespace();
1255 $iw = $nt->getInterWiki();
1256
1257 if ($might_be_img) { # if this is actually an invalid link
1258 if ($ns == NS_IMAGE && $noforce) { #but might be an image
1259 $found = false;
1260 while (isset ($a[$k+1]) ) {
1261 #look at the next 'line' to see if we can close it there
1262 $next_line = array_shift(array_splice( $a, $k + 1, 1) );
1263 if( preg_match("/^(.*?]].*?)]](.*)$/sD", $next_line, $m) ) {
1264 # the first ]] closes the inner link, the second the image
1265 $found = true;
1266 $text .= '[[' . $m[1];
1267 $trail = $m[2];
1268 break;
1269 } elseif( preg_match("/^.*?]].*$/sD", $next_line, $m) ) {
1270 #if there's exactly one ]] that's fine, we'll keep looking
1271 $text .= '[[' . $m[0];
1272 } else {
1273 #if $next_line is invalid too, we need look no further
1274 $text .= '[[' . $next_line;
1275 break;
1276 }
1277 }
1278 if ( !$found ) {
1279 # we couldn't find the end of this imageLink, so output it raw
1280 #but don't ignore what might be perfectly normal links in the text we've examined
1281 $text = $this->replaceInternalLinks($text);
1282 $s .= $prefix . '[[' . $link . '|' . $text;
1283 # note: no $trail, because without an end, there *is* no trail
1284 continue;
1285 }
1286 } else { #it's not an image, so output it raw
1287 $s .= $prefix . '[[' . $link . '|' . $text;
1288 # note: no $trail, because without an end, there *is* no trail
1289 continue;
1290 }
1291 }
1292
1293 $wasblank = ( '' == $text );
1294 if( $wasblank ) $text = $link;
1295
1296
1297 # Link not escaped by : , create the various objects
1298 if( $noforce ) {
1299
1300 # Interwikis
1301 if( $iw && $this->mOptions->getInterwikiMagic() && $nottalk && $wgContLang->getLanguageName( $iw ) ) {
1302 array_push( $this->mOutput->mLanguageLinks, $nt->getFullText() );
1303 $tmp = $prefix . $trail ;
1304 $s .= (trim($tmp) == '')? '': $tmp;
1305 continue;
1306 }
1307
1308 if ( $ns == NS_IMAGE ) {
1309 wfProfileIn( "$fname-image" );
1310
1311 # recursively parse links inside the image caption
1312 # actually, this will parse them in any other parameters, too,
1313 # but it might be hard to fix that, and it doesn't matter ATM
1314 $text = $this->replaceExternalLinks($text);
1315 $text = $this->replaceInternalLinks($text);
1316
1317 # replace the image with a link-holder so that replaceExternalLinks() can't mess with it
1318 $s .= $prefix . $this->insertStripItem( $sk->makeImageLinkObj( $nt, $text ), $this->mStripState ) . $trail;
1319 $wgLinkCache->addImageLinkObj( $nt );
1320
1321 wfProfileOut( "$fname-image" );
1322 continue;
1323 }
1324
1325 if ( $ns == NS_CATEGORY ) {
1326 wfProfileIn( "$fname-category" );
1327 $t = $nt->getText();
1328
1329 $wgLinkCache->suspend(); # Don't save in links/brokenlinks
1330 $pPLC=$sk->postParseLinkColour();
1331 $sk->postParseLinkColour( false );
1332 $t = $sk->makeLinkObj( $nt, $t, '', '' , $prefix );
1333 $sk->postParseLinkColour( $pPLC );
1334 $wgLinkCache->resume();
1335
1336 if ( $wasblank ) {
1337 if ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
1338 $sortkey = $this->mTitle->getText();
1339 } else {
1340 $sortkey = $this->mTitle->getPrefixedText();
1341 }
1342 } else {
1343 $sortkey = $text;
1344 }
1345 $wgLinkCache->addCategoryLinkObj( $nt, $sortkey );
1346 $this->mOutput->addCategoryLink( $t );
1347 $s .= $prefix . $trail ;
1348
1349 wfProfileOut( "$fname-category" );
1350 continue;
1351 }
1352 }
1353
1354 if( ( $nt->getPrefixedText() === $selflink ) &&
1355 ( $nt->getFragment() === '' ) ) {
1356 # Self-links are handled specially; generally de-link and change to bold.
1357 $s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail );
1358 continue;
1359 }
1360
1361 # Special and Media are pseudo-namespaces; no pages actually exist in them
1362 if( $ns == NS_MEDIA ) {
1363 $s .= $prefix . $sk->makeMediaLinkObj( $nt, $text, true ) . $trail;
1364 $wgLinkCache->addImageLinkObj( $nt );
1365 continue;
1366 } elseif( $ns == NS_SPECIAL ) {
1367 $s .= $prefix . $sk->makeKnownLinkObj( $nt, $text, '', $trail );
1368 continue;
1369 }
1370 $s .= $sk->makeLinkObj( $nt, $text, '', $trail, $prefix );
1371 }
1372 $sk->postParseLinkColour( $saveParseColour );
1373 wfProfileOut( $fname );
1374 return $s;
1375 }
1376
1377 /**
1378 * Return true if subpage links should be expanded on this page.
1379 * @return bool
1380 */
1381 function areSubpagesAllowed() {
1382 # Some namespaces don't allow subpages
1383 global $wgNamespacesWithSubpages;
1384 return !empty($wgNamespacesWithSubpages[$this->mTitle->getNamespace()]);
1385 }
1386
1387 /**
1388 * Handle link to subpage if necessary
1389 * @param string $target the source of the link
1390 * @param string &$text the link text, modified as necessary
1391 * @return string the full name of the link
1392 * @access private
1393 */
1394 function maybeDoSubpageLink($target, &$text) {
1395 # Valid link forms:
1396 # Foobar -- normal
1397 # :Foobar -- override special treatment of prefix (images, language links)
1398 # /Foobar -- convert to CurrentPage/Foobar
1399 # /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text
1400 # ../ -- convert to CurrentPage, from CurrentPage/CurrentSubPage
1401 # ../Foobar -- convert to CurrentPage/Foobar, from CurrentPage/CurrentSubPage
1402
1403 $fname = 'Parser::maybeDoSubpageLink';
1404 wfProfileIn( $fname );
1405 $ret = $target; # default return value is no change
1406
1407 # Some namespaces don't allow subpages,
1408 # so only perform processing if subpages are allowed
1409 if( $this->areSubpagesAllowed() ) {
1410 # Look at the first character
1411 if( $target != '' && $target{0} == '/' ) {
1412 # / at end means we don't want the slash to be shown
1413 if( substr( $target, -1, 1 ) == '/' ) {
1414 $target = substr( $target, 1, -1 );
1415 $noslash = $target;
1416 } else {
1417 $noslash = substr( $target, 1 );
1418 }
1419
1420 $ret = $this->mTitle->getPrefixedText(). '/' . trim($noslash);
1421 if( '' === $text ) {
1422 $text = $target;
1423 } # this might be changed for ugliness reasons
1424 } else {
1425 # check for .. subpage backlinks
1426 $dotdotcount = 0;
1427 $nodotdot = $target;
1428 while( strncmp( $nodotdot, "../", 3 ) == 0 ) {
1429 ++$dotdotcount;
1430 $nodotdot = substr( $nodotdot, 3 );
1431 }
1432 if($dotdotcount > 0) {
1433 $exploded = explode( '/', $this->mTitle->GetPrefixedText() );
1434 if( count( $exploded ) > $dotdotcount ) { # not allowed to go below top level page
1435 $ret = implode( '/', array_slice( $exploded, 0, -$dotdotcount ) );
1436 # / at the end means don't show full path
1437 if( substr( $nodotdot, -1, 1 ) == '/' ) {
1438 $nodotdot = substr( $nodotdot, 0, -1 );
1439 if( '' === $text ) {
1440 $text = $nodotdot;
1441 }
1442 }
1443 $nodotdot = trim( $nodotdot );
1444 if( $nodotdot != '' ) {
1445 $ret .= '/' . $nodotdot;
1446 }
1447 }
1448 }
1449 }
1450 }
1451
1452 wfProfileOut( $fname );
1453 return $ret;
1454 }
1455
1456 /**#@+
1457 * Used by doBlockLevels()
1458 * @access private
1459 */
1460 /* private */ function closeParagraph() {
1461 $result = '';
1462 if ( '' != $this->mLastSection ) {
1463 $result = '</' . $this->mLastSection . ">\n";
1464 }
1465 $this->mInPre = false;
1466 $this->mLastSection = '';
1467 return $result;
1468 }
1469 # getCommon() returns the length of the longest common substring
1470 # of both arguments, starting at the beginning of both.
1471 #
1472 /* private */ function getCommon( $st1, $st2 ) {
1473 $fl = strlen( $st1 );
1474 $shorter = strlen( $st2 );
1475 if ( $fl < $shorter ) { $shorter = $fl; }
1476
1477 for ( $i = 0; $i < $shorter; ++$i ) {
1478 if ( $st1{$i} != $st2{$i} ) { break; }
1479 }
1480 return $i;
1481 }
1482 # These next three functions open, continue, and close the list
1483 # element appropriate to the prefix character passed into them.
1484 #
1485 /* private */ function openList( $char ) {
1486 $result = $this->closeParagraph();
1487
1488 if ( '*' == $char ) { $result .= '<ul><li>'; }
1489 else if ( '#' == $char ) { $result .= '<ol><li>'; }
1490 else if ( ':' == $char ) { $result .= '<dl><dd>'; }
1491 else if ( ';' == $char ) {
1492 $result .= '<dl><dt>';
1493 $this->mDTopen = true;
1494 }
1495 else { $result = '<!-- ERR 1 -->'; }
1496
1497 return $result;
1498 }
1499
1500 /* private */ function nextItem( $char ) {
1501 if ( '*' == $char || '#' == $char ) { return '</li><li>'; }
1502 else if ( ':' == $char || ';' == $char ) {
1503 $close = '</dd>';
1504 if ( $this->mDTopen ) { $close = '</dt>'; }
1505 if ( ';' == $char ) {
1506 $this->mDTopen = true;
1507 return $close . '<dt>';
1508 } else {
1509 $this->mDTopen = false;
1510 return $close . '<dd>';
1511 }
1512 }
1513 return '<!-- ERR 2 -->';
1514 }
1515
1516 /* private */ function closeList( $char ) {
1517 if ( '*' == $char ) { $text = '</li></ul>'; }
1518 else if ( '#' == $char ) { $text = '</li></ol>'; }
1519 else if ( ':' == $char ) {
1520 if ( $this->mDTopen ) {
1521 $this->mDTopen = false;
1522 $text = '</dt></dl>';
1523 } else {
1524 $text = '</dd></dl>';
1525 }
1526 }
1527 else { return '<!-- ERR 3 -->'; }
1528 return $text."\n";
1529 }
1530 /**#@-*/
1531
1532 /**
1533 * Make lists from lines starting with ':', '*', '#', etc.
1534 *
1535 * @access private
1536 * @return string the lists rendered as HTML
1537 */
1538 function doBlockLevels( $text, $linestart ) {
1539 $fname = 'Parser::doBlockLevels';
1540 wfProfileIn( $fname );
1541
1542 # Parsing through the text line by line. The main thing
1543 # happening here is handling of block-level elements p, pre,
1544 # and making lists from lines starting with * # : etc.
1545 #
1546 $textLines = explode( "\n", $text );
1547
1548 $lastPrefix = $output = $lastLine = '';
1549 $this->mDTopen = $inBlockElem = false;
1550 $prefixLength = 0;
1551 $paragraphStack = false;
1552
1553 if ( !$linestart ) {
1554 $output .= array_shift( $textLines );
1555 }
1556 foreach ( $textLines as $oLine ) {
1557 $lastPrefixLength = strlen( $lastPrefix );
1558 $preCloseMatch = preg_match('/<\\/pre/i', $oLine );
1559 $preOpenMatch = preg_match('/<pre/i', $oLine );
1560 if ( !$this->mInPre ) {
1561 # Multiple prefixes may abut each other for nested lists.
1562 $prefixLength = strspn( $oLine, '*#:;' );
1563 $pref = substr( $oLine, 0, $prefixLength );
1564
1565 # eh?
1566 $pref2 = str_replace( ';', ':', $pref );
1567 $t = substr( $oLine, $prefixLength );
1568 $this->mInPre = !empty($preOpenMatch);
1569 } else {
1570 # Don't interpret any other prefixes in preformatted text
1571 $prefixLength = 0;
1572 $pref = $pref2 = '';
1573 $t = $oLine;
1574 }
1575
1576 # List generation
1577 if( $prefixLength && 0 == strcmp( $lastPrefix, $pref2 ) ) {
1578 # Same as the last item, so no need to deal with nesting or opening stuff
1579 $output .= $this->nextItem( substr( $pref, -1 ) );
1580 $paragraphStack = false;
1581
1582 if ( substr( $pref, -1 ) == ';') {
1583 # The one nasty exception: definition lists work like this:
1584 # ; title : definition text
1585 # So we check for : in the remainder text to split up the
1586 # title and definition, without b0rking links.
1587 if ($this->findColonNoLinks($t, $term, $t2) !== false) {
1588 $t = $t2;
1589 $output .= $term . $this->nextItem( ':' );
1590 }
1591 }
1592 } elseif( $prefixLength || $lastPrefixLength ) {
1593 # Either open or close a level...
1594 $commonPrefixLength = $this->getCommon( $pref, $lastPrefix );
1595 $paragraphStack = false;
1596
1597 while( $commonPrefixLength < $lastPrefixLength ) {
1598 $output .= $this->closeList( $lastPrefix{$lastPrefixLength-1} );
1599 --$lastPrefixLength;
1600 }
1601 if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) {
1602 $output .= $this->nextItem( $pref{$commonPrefixLength-1} );
1603 }
1604 while ( $prefixLength > $commonPrefixLength ) {
1605 $char = substr( $pref, $commonPrefixLength, 1 );
1606 $output .= $this->openList( $char );
1607
1608 if ( ';' == $char ) {
1609 # FIXME: This is dupe of code above
1610 if ($this->findColonNoLinks($t, $term, $t2) !== false) {
1611 $t = $t2;
1612 $output .= $term . $this->nextItem( ':' );
1613 }
1614 }
1615 ++$commonPrefixLength;
1616 }
1617 $lastPrefix = $pref2;
1618 }
1619 if( 0 == $prefixLength ) {
1620 wfProfileIn( "$fname-paragraph" );
1621 # No prefix (not in list)--go to paragraph mode
1622 $uniq_prefix = UNIQ_PREFIX;
1623 // XXX: use a stack for nestable elements like span, table and div
1624 $openmatch = preg_match('/(<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<li|<\\/tr|<\\/td|<\\/th)/iS', $t );
1625 $closematch = preg_match(
1626 '/(<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|'.
1627 '<td|<th|<div|<\\/div|<hr|<\\/pre|<\\/p|'.$uniq_prefix.'-pre|<\\/li|<\\/ul)/iS', $t );
1628 if ( $openmatch or $closematch ) {
1629 $paragraphStack = false;
1630 $output .= $this->closeParagraph();
1631 if($preOpenMatch and !$preCloseMatch) {
1632 $this->mInPre = true;
1633 }
1634 if ( $closematch ) {
1635 $inBlockElem = false;
1636 } else {
1637 $inBlockElem = true;
1638 }
1639 } else if ( !$inBlockElem && !$this->mInPre ) {
1640 if ( ' ' == $t{0} and ( $this->mLastSection == 'pre' or trim($t) != '' ) ) {
1641 // pre
1642 if ($this->mLastSection != 'pre') {
1643 $paragraphStack = false;
1644 $output .= $this->closeParagraph().'<pre>';
1645 $this->mLastSection = 'pre';
1646 }
1647 $t = substr( $t, 1 );
1648 } else {
1649 // paragraph
1650 if ( '' == trim($t) ) {
1651 if ( $paragraphStack ) {
1652 $output .= $paragraphStack.'<br />';
1653 $paragraphStack = false;
1654 $this->mLastSection = 'p';
1655 } else {
1656 if ($this->mLastSection != 'p' ) {
1657 $output .= $this->closeParagraph();
1658 $this->mLastSection = '';
1659 $paragraphStack = '<p>';
1660 } else {
1661 $paragraphStack = '</p><p>';
1662 }
1663 }
1664 } else {
1665 if ( $paragraphStack ) {
1666 $output .= $paragraphStack;
1667 $paragraphStack = false;
1668 $this->mLastSection = 'p';
1669 } else if ($this->mLastSection != 'p') {
1670 $output .= $this->closeParagraph().'<p>';
1671 $this->mLastSection = 'p';
1672 }
1673 }
1674 }
1675 }
1676 wfProfileOut( "$fname-paragraph" );
1677 }
1678 if ($paragraphStack === false) {
1679 $output .= $t."\n";
1680 }
1681 }
1682 while ( $prefixLength ) {
1683 $output .= $this->closeList( $pref2{$prefixLength-1} );
1684 --$prefixLength;
1685 }
1686 if ( '' != $this->mLastSection ) {
1687 $output .= '</' . $this->mLastSection . '>';
1688 $this->mLastSection = '';
1689 }
1690
1691 wfProfileOut( $fname );
1692 return $output;
1693 }
1694
1695 /**
1696 * Split up a string on ':', ignoring any occurences inside
1697 * <a>..</a> or <span>...</span>
1698 * @param string $str the string to split
1699 * @param string &$before set to everything before the ':'
1700 * @param string &$after set to everything after the ':'
1701 * return string the position of the ':', or false if none found
1702 */
1703 function findColonNoLinks($str, &$before, &$after) {
1704 # I wonder if we should make this count all tags, not just <a>
1705 # and <span>. That would prevent us from matching a ':' that
1706 # comes in the middle of italics other such formatting....
1707 # -- Wil
1708 $fname = 'Parser::findColonNoLinks';
1709 wfProfileIn( $fname );
1710 $pos = 0;
1711 do {
1712 $colon = strpos($str, ':', $pos);
1713
1714 if ($colon !== false) {
1715 $before = substr($str, 0, $colon);
1716 $after = substr($str, $colon + 1);
1717
1718 # Skip any ':' within <a> or <span> pairs
1719 $a = substr_count($before, '<a');
1720 $s = substr_count($before, '<span');
1721 $ca = substr_count($before, '</a>');
1722 $cs = substr_count($before, '</span>');
1723
1724 if ($a <= $ca and $s <= $cs) {
1725 # Tags are balanced before ':'; ok
1726 break;
1727 }
1728 $pos = $colon + 1;
1729 }
1730 } while ($colon !== false);
1731 wfProfileOut( $fname );
1732 return $colon;
1733 }
1734
1735 /**
1736 * Return value of a magic variable (like PAGENAME)
1737 *
1738 * @access private
1739 */
1740 function getVariableValue( $index ) {
1741 global $wgContLang, $wgSitename, $wgServer;
1742
1743 /**
1744 * Some of these require message or data lookups and can be
1745 * expensive to check many times.
1746 */
1747 static $varCache = array();
1748 if( isset( $varCache[$index] ) ) return $varCache[$index];
1749
1750 switch ( $index ) {
1751 case MAG_CURRENTMONTH:
1752 return $varCache[$index] = $wgContLang->formatNum( date( 'm' ) );
1753 case MAG_CURRENTMONTHNAME:
1754 return $varCache[$index] = $wgContLang->getMonthName( date('n') );
1755 case MAG_CURRENTMONTHNAMEGEN:
1756 return $varCache[$index] = $wgContLang->getMonthNameGen( date('n') );
1757 case MAG_CURRENTDAY:
1758 return $varCache[$index] = $wgContLang->formatNum( date('j') );
1759 case MAG_PAGENAME:
1760 return $this->mTitle->getText();
1761 case MAG_PAGENAMEE:
1762 return $this->mTitle->getPartialURL();
1763 case MAG_NAMESPACE:
1764 # return Namespace::getCanonicalName($this->mTitle->getNamespace());
1765 return $wgContLang->getNsText($this->mTitle->getNamespace()); # Patch by Dori
1766 case MAG_CURRENTDAYNAME:
1767 return $varCache[$index] = $wgContLang->getWeekdayName( date('w')+1 );
1768 case MAG_CURRENTYEAR:
1769 return $varCache[$index] = $wgContLang->formatNum( date( 'Y' ) );
1770 case MAG_CURRENTTIME:
1771 return $varCache[$index] = $wgContLang->time( wfTimestampNow(), false );
1772 case MAG_NUMBEROFARTICLES:
1773 return $varCache[$index] = $wgContLang->formatNum( wfNumberOfArticles() );
1774 case MAG_SITENAME:
1775 return $wgSitename;
1776 case MAG_SERVER:
1777 return $wgServer;
1778 default:
1779 return NULL;
1780 }
1781 }
1782
1783 /**
1784 * initialise the magic variables (like CURRENTMONTHNAME)
1785 *
1786 * @access private
1787 */
1788 function initialiseVariables() {
1789 $fname = 'Parser::initialiseVariables';
1790 wfProfileIn( $fname );
1791 global $wgVariableIDs;
1792 $this->mVariables = array();
1793 foreach ( $wgVariableIDs as $id ) {
1794 $mw =& MagicWord::get( $id );
1795 $mw->addToArray( $this->mVariables, $this->getVariableValue( $id ) );
1796 }
1797 wfProfileOut( $fname );
1798 }
1799
1800 /**
1801 * Replace magic variables, templates, and template arguments
1802 * with the appropriate text. Templates are substituted recursively,
1803 * taking care to avoid infinite loops.
1804 *
1805 * Note that the substitution depends on value of $mOutputType:
1806 * OT_WIKI: only {{subst:}} templates
1807 * OT_MSG: only magic variables
1808 * OT_HTML: all templates and magic variables
1809 *
1810 * @param string $tex The text to transform
1811 * @param array $args Key-value pairs representing template parameters to substitute
1812 * @access private
1813 */
1814 function replaceVariables( $text, $args = array() ) {
1815 global $wgLang, $wgScript, $wgArticlePath;
1816
1817 # Prevent too big inclusions
1818 if( strlen( $text ) > MAX_INCLUDE_SIZE ) {
1819 return $text;
1820 }
1821
1822 $fname = 'Parser::replaceVariables';
1823 wfProfileIn( $fname );
1824
1825 $titleChars = Title::legalChars();
1826
1827 # This function is called recursively. To keep track of arguments we need a stack:
1828 array_push( $this->mArgStack, $args );
1829
1830 # Variable substitution
1831 $text = preg_replace_callback( "/{{([$titleChars]*?)}}/", array( &$this, 'variableSubstitution' ), $text );
1832
1833 if ( $this->mOutputType == OT_HTML || $this->mOutputType == OT_WIKI ) {
1834 # Argument substitution
1835 $text = preg_replace_callback( "/{{{([$titleChars]*?)}}}/", array( &$this, 'argSubstitution' ), $text );
1836 }
1837 # Template substitution
1838 $regex = '/(\\n|{)?{{(['.$titleChars.']*)(\\|.*?|)}}/s';
1839 $text = preg_replace_callback( $regex, array( &$this, 'braceSubstitution' ), $text );
1840
1841 array_pop( $this->mArgStack );
1842
1843 wfProfileOut( $fname );
1844 return $text;
1845 }
1846
1847 /**
1848 * Replace magic variables
1849 * @access private
1850 */
1851 function variableSubstitution( $matches ) {
1852 $fname = 'parser::variableSubstitution';
1853 wfProfileIn( $fname );
1854 if ( !$this->mVariables ) {
1855 $this->initialiseVariables();
1856 }
1857 $skip = false;
1858 if ( $this->mOutputType == OT_WIKI ) {
1859 # Do only magic variables prefixed by SUBST
1860 $mwSubst =& MagicWord::get( MAG_SUBST );
1861 if (!$mwSubst->matchStartAndRemove( $matches[1] ))
1862 $skip = true;
1863 # Note that if we don't substitute the variable below,
1864 # we don't remove the {{subst:}} magic word, in case
1865 # it is a template rather than a magic variable.
1866 }
1867 if ( !$skip && array_key_exists( $matches[1], $this->mVariables ) ) {
1868 $text = $this->mVariables[$matches[1]];
1869 $this->mOutput->mContainsOldMagic = true;
1870 } else {
1871 $text = $matches[0];
1872 }
1873 wfProfileOut( $fname );
1874 return $text;
1875 }
1876
1877 # Split template arguments
1878 function getTemplateArgs( $argsString ) {
1879 if ( $argsString === '' ) {
1880 return array();
1881 }
1882
1883 $args = explode( '|', substr( $argsString, 1 ) );
1884
1885 # If any of the arguments contains a '[[' but no ']]', it needs to be
1886 # merged with the next arg because the '|' character between belongs
1887 # to the link syntax and not the template parameter syntax.
1888 $argc = count($args);
1889 $i = 0;
1890 for ( $i = 0; $i < $argc-1; $i++ ) {
1891 if ( substr_count ( $args[$i], '[[' ) != substr_count ( $args[$i], ']]' ) ) {
1892 $args[$i] .= '|'.$args[$i+1];
1893 array_splice($args, $i+1, 1);
1894 $i--;
1895 $argc--;
1896 }
1897 }
1898
1899 return $args;
1900 }
1901
1902 /**
1903 * Return the text of a template, after recursively
1904 * replacing any variables or templates within the template.
1905 *
1906 * @param array $matches The parts of the template
1907 * $matches[1]: the title, i.e. the part before the |
1908 * $matches[2]: the parameters (including a leading |), if any
1909 * @return string the text of the template
1910 * @access private
1911 */
1912 function braceSubstitution( $matches ) {
1913 global $wgLinkCache, $wgContLang;
1914 $fname = 'Parser::braceSubstitution';
1915 wfProfileIn( $fname );
1916
1917 $found = false;
1918 $nowiki = false;
1919 $noparse = false;
1920
1921 $title = NULL;
1922
1923 # Need to know if the template comes at the start of a line,
1924 # to treat the beginning of the template like the beginning
1925 # of a line for tables and block-level elements.
1926 $linestart = $matches[1];
1927
1928 # $part1 is the bit before the first |, and must contain only title characters
1929 # $args is a list of arguments, starting from index 0, not including $part1
1930
1931 $part1 = $matches[2];
1932 # If the third subpattern matched anything, it will start with |
1933
1934 $args = $this->getTemplateArgs($matches[3]);
1935 $argc = count( $args );
1936
1937 # Don't parse {{{}}} because that's only for template arguments
1938 if ( $linestart === '{' ) {
1939 $text = $matches[0];
1940 $found = true;
1941 $noparse = true;
1942 }
1943
1944 # SUBST
1945 if ( !$found ) {
1946 $mwSubst =& MagicWord::get( MAG_SUBST );
1947 if ( $mwSubst->matchStartAndRemove( $part1 ) xor ($this->mOutputType == OT_WIKI) ) {
1948 # One of two possibilities is true:
1949 # 1) Found SUBST but not in the PST phase
1950 # 2) Didn't find SUBST and in the PST phase
1951 # In either case, return without further processing
1952 $text = $matches[0];
1953 $found = true;
1954 $noparse = true;
1955 }
1956 }
1957
1958 # MSG, MSGNW and INT
1959 if ( !$found ) {
1960 # Check for MSGNW:
1961 $mwMsgnw =& MagicWord::get( MAG_MSGNW );
1962 if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
1963 $nowiki = true;
1964 } else {
1965 # Remove obsolete MSG:
1966 $mwMsg =& MagicWord::get( MAG_MSG );
1967 $mwMsg->matchStartAndRemove( $part1 );
1968 }
1969
1970 # Check if it is an internal message
1971 $mwInt =& MagicWord::get( MAG_INT );
1972 if ( $mwInt->matchStartAndRemove( $part1 ) ) {
1973 if ( $this->incrementIncludeCount( 'int:'.$part1 ) ) {
1974 $text = $linestart . wfMsgReal( $part1, $args, true );
1975 $found = true;
1976 }
1977 }
1978 }
1979
1980 # NS
1981 if ( !$found ) {
1982 # Check for NS: (namespace expansion)
1983 $mwNs = MagicWord::get( MAG_NS );
1984 if ( $mwNs->matchStartAndRemove( $part1 ) ) {
1985 if ( intval( $part1 ) ) {
1986 $text = $linestart . $wgContLang->getNsText( intval( $part1 ) );
1987 $found = true;
1988 } else {
1989 $index = Namespace::getCanonicalIndex( strtolower( $part1 ) );
1990 if ( !is_null( $index ) ) {
1991 $text = $linestart . $wgContLang->getNsText( $index );
1992 $found = true;
1993 }
1994 }
1995 }
1996 }
1997
1998 # LOCALURL and LOCALURLE
1999 if ( !$found ) {
2000 $mwLocal = MagicWord::get( MAG_LOCALURL );
2001 $mwLocalE = MagicWord::get( MAG_LOCALURLE );
2002
2003 if ( $mwLocal->matchStartAndRemove( $part1 ) ) {
2004 $func = 'getLocalURL';
2005 } elseif ( $mwLocalE->matchStartAndRemove( $part1 ) ) {
2006 $func = 'escapeLocalURL';
2007 } else {
2008 $func = '';
2009 }
2010
2011 if ( $func !== '' ) {
2012 $title = Title::newFromText( $part1 );
2013 if ( !is_null( $title ) ) {
2014 if ( $argc > 0 ) {
2015 $text = $linestart . $title->$func( $args[0] );
2016 } else {
2017 $text = $linestart . $title->$func();
2018 }
2019 $found = true;
2020 }
2021 }
2022 }
2023
2024 # GRAMMAR
2025 if ( !$found && $argc == 1 ) {
2026 $mwGrammar =& MagicWord::get( MAG_GRAMMAR );
2027 if ( $mwGrammar->matchStartAndRemove( $part1 ) ) {
2028 $text = $linestart . $wgContLang->convertGrammar( $args[0], $part1 );
2029 $found = true;
2030 }
2031 }
2032
2033 # Template table test
2034
2035 # Did we encounter this template already? If yes, it is in the cache
2036 # and we need to check for loops.
2037 if ( !$found && isset( $this->mTemplates[$part1] ) ) {
2038 # set $text to cached message.
2039 $text = $linestart . $this->mTemplates[$part1];
2040 $found = true;
2041
2042 # Infinite loop test
2043 if ( isset( $this->mTemplatePath[$part1] ) ) {
2044 $noparse = true;
2045 $found = true;
2046 $text .= '<!-- WARNING: template loop detected -->';
2047 }
2048 }
2049
2050 # Load from database
2051 $itcamefromthedatabase = false;
2052 if ( !$found ) {
2053 $ns = NS_TEMPLATE;
2054 $part1 = $this->maybeDoSubpageLink( $part1, $subpage='' );
2055 if ($subpage !== '') {
2056 $ns = $this->mTitle->getNamespace();
2057 }
2058 $title = Title::newFromText( $part1, $ns );
2059 if ( !is_null( $title ) && !$title->isExternal() ) {
2060 # Check for excessive inclusion
2061 $dbk = $title->getPrefixedDBkey();
2062 if ( $this->incrementIncludeCount( $dbk ) ) {
2063 # This should never be reached.
2064 $article = new Article( $title );
2065 $articleContent = $article->getContentWithoutUsingSoManyDamnGlobals();
2066 if ( $articleContent !== false ) {
2067 $found = true;
2068 $text = $linestart . $articleContent;
2069 $itcamefromthedatabase = true;
2070 }
2071 }
2072
2073 # If the title is valid but undisplayable, make a link to it
2074 if ( $this->mOutputType == OT_HTML && !$found ) {
2075 $text = $linestart . '[['.$title->getPrefixedText().']]';
2076 $found = true;
2077 }
2078
2079 # Template cache array insertion
2080 $this->mTemplates[$part1] = $text;
2081 }
2082 }
2083
2084 # Recursive parsing, escaping and link table handling
2085 # Only for HTML output
2086 if ( $nowiki && $found && $this->mOutputType == OT_HTML ) {
2087 $text = wfEscapeWikiText( $text );
2088 } elseif ( ($this->mOutputType == OT_HTML || $this->mOutputType == OT_WIKI) && $found && !$noparse) {
2089 # Clean up argument array
2090 $assocArgs = array();
2091 $index = 1;
2092 foreach( $args as $arg ) {
2093 $eqpos = strpos( $arg, '=' );
2094 if ( $eqpos === false ) {
2095 $assocArgs[$index++] = $arg;
2096 } else {
2097 $name = trim( substr( $arg, 0, $eqpos ) );
2098 $value = trim( substr( $arg, $eqpos+1 ) );
2099 if ( $value === false ) {
2100 $value = '';
2101 }
2102 if ( $name !== false ) {
2103 $assocArgs[$name] = $value;
2104 }
2105 }
2106 }
2107
2108 # Add a new element to the templace recursion path
2109 $this->mTemplatePath[$part1] = 1;
2110
2111 $text = $this->strip( $text, $this->mStripState );
2112 $text = $this->removeHTMLtags( $text );
2113 $text = $this->replaceVariables( $text, $assocArgs );
2114
2115 # Resume the link cache and register the inclusion as a link
2116 if ( $this->mOutputType == OT_HTML && !is_null( $title ) ) {
2117 $wgLinkCache->addLinkObj( $title );
2118 }
2119
2120 # If the template begins with a table or block-level
2121 # element, it should be treated as beginning a new line.
2122 if ($linestart !== '\n' && preg_match('/^({\\||:|;|#|\*)/', $text)) {
2123 $text = "\n" . $text;
2124 }
2125 }
2126
2127 # Empties the template path
2128 $this->mTemplatePath = array();
2129 if ( !$found ) {
2130 wfProfileOut( $fname );
2131 return $matches[0];
2132 } else {
2133 # replace ==section headers==
2134 # XXX this needs to go away once we have a better parser.
2135 if ( $this->mOutputType != OT_WIKI && $itcamefromthedatabase ) {
2136 if( !is_null( $title ) )
2137 $encodedname = base64_encode($title->getPrefixedDBkey());
2138 else
2139 $encodedname = base64_encode("");
2140 $m = preg_split('/(^={1,6}.*?={1,6}\s*?$)/m', $text, -1,
2141 PREG_SPLIT_DELIM_CAPTURE);
2142 $text = '';
2143 $nsec = 0;
2144 for( $i = 0; $i < count($m); $i += 2 ) {
2145 $text .= $m[$i];
2146 if (!isset($m[$i + 1]) || $m[$i + 1] == "") continue;
2147 $hl = $m[$i + 1];
2148 if( strstr($hl, "<!--MWTEMPLATESECTION") ) {
2149 $text .= $hl;
2150 continue;
2151 }
2152 preg_match('/^(={1,6})(.*?)(={1,6})\s*?$/m', $hl, $m2);
2153 $text .= $m2[1] . $m2[2] . "<!--MWTEMPLATESECTION="
2154 . $encodedname . "&" . base64_encode("$nsec") . "-->" . $m2[3];
2155
2156 $nsec++;
2157 }
2158 }
2159 }
2160
2161 # Empties the template path
2162 $this->mTemplatePath = array();
2163
2164 if ( !$found ) {
2165 wfProfileOut( $fname );
2166 return $matches[0];
2167 } else {
2168 wfProfileOut( $fname );
2169 return $text;
2170 }
2171 }
2172
2173 /**
2174 * Triple brace replacement -- used for template arguments
2175 * @access private
2176 */
2177 function argSubstitution( $matches ) {
2178 $arg = trim( $matches[1] );
2179 $text = $matches[0];
2180 $inputArgs = end( $this->mArgStack );
2181
2182 if ( array_key_exists( $arg, $inputArgs ) ) {
2183 $text = $inputArgs[$arg];
2184 }
2185
2186 return $text;
2187 }
2188
2189 /**
2190 * Returns true if the function is allowed to include this entity
2191 * @access private
2192 */
2193 function incrementIncludeCount( $dbk ) {
2194 if ( !array_key_exists( $dbk, $this->mIncludeCount ) ) {
2195 $this->mIncludeCount[$dbk] = 0;
2196 }
2197 if ( ++$this->mIncludeCount[$dbk] <= MAX_INCLUDE_REPEAT ) {
2198 return true;
2199 } else {
2200 return false;
2201 }
2202 }
2203
2204
2205 /**
2206 * Cleans up HTML, removes dangerous tags and attributes, and
2207 * removes HTML comments
2208 * @access private
2209 */
2210 function removeHTMLtags( $text ) {
2211 global $wgUseTidy, $wgUserHtml;
2212 $fname = 'Parser::removeHTMLtags';
2213 wfProfileIn( $fname );
2214
2215 if( $wgUserHtml ) {
2216 $htmlpairs = array( # Tags that must be closed
2217 'b', 'del', 'i', 'ins', 'u', 'font', 'big', 'small', 'sub', 'sup', 'h1',
2218 'h2', 'h3', 'h4', 'h5', 'h6', 'cite', 'code', 'em', 's',
2219 'strike', 'strong', 'tt', 'var', 'div', 'center',
2220 'blockquote', 'ol', 'ul', 'dl', 'table', 'caption', 'pre',
2221 'ruby', 'rt' , 'rb' , 'rp', 'p'
2222 );
2223 $htmlsingle = array(
2224 'br', 'hr', 'li', 'dt', 'dd'
2225 );
2226 $htmlnest = array( # Tags that can be nested--??
2227 'table', 'tr', 'td', 'th', 'div', 'blockquote', 'ol', 'ul',
2228 'dl', 'font', 'big', 'small', 'sub', 'sup'
2229 );
2230 $tabletags = array( # Can only appear inside table
2231 'td', 'th', 'tr'
2232 );
2233 } else {
2234 $htmlpairs = array();
2235 $htmlsingle = array();
2236 $htmlnest = array();
2237 $tabletags = array();
2238 }
2239
2240 $htmlsingle = array_merge( $tabletags, $htmlsingle );
2241 $htmlelements = array_merge( $htmlsingle, $htmlpairs );
2242
2243 $htmlattrs = $this->getHTMLattrs () ;
2244
2245 # Remove HTML comments
2246 $text = $this->removeHTMLcomments( $text );
2247
2248 $bits = explode( '<', $text );
2249 $text = array_shift( $bits );
2250 if(!$wgUseTidy) {
2251 $tagstack = array(); $tablestack = array();
2252 foreach ( $bits as $x ) {
2253 $prev = error_reporting( E_ALL & ~( E_NOTICE | E_WARNING ) );
2254 preg_match( '/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/',
2255 $x, $regs );
2256 list( $qbar, $slash, $t, $params, $brace, $rest ) = $regs;
2257 error_reporting( $prev );
2258
2259 $badtag = 0 ;
2260 if ( in_array( $t = strtolower( $t ), $htmlelements ) ) {
2261 # Check our stack
2262 if ( $slash ) {
2263 # Closing a tag...
2264 if ( ! in_array( $t, $htmlsingle ) &&
2265 ( $ot = @array_pop( $tagstack ) ) != $t ) {
2266 @array_push( $tagstack, $ot );
2267 $badtag = 1;
2268 } else {
2269 if ( $t == 'table' ) {
2270 $tagstack = array_pop( $tablestack );
2271 }
2272 $newparams = '';
2273 }
2274 } else {
2275 # Keep track for later
2276 if ( in_array( $t, $tabletags ) &&
2277 ! in_array( 'table', $tagstack ) ) {
2278 $badtag = 1;
2279 } else if ( in_array( $t, $tagstack ) &&
2280 ! in_array ( $t , $htmlnest ) ) {
2281 $badtag = 1 ;
2282 } else if ( ! in_array( $t, $htmlsingle ) ) {
2283 if ( $t == 'table' ) {
2284 array_push( $tablestack, $tagstack );
2285 $tagstack = array();
2286 }
2287 array_push( $tagstack, $t );
2288 }
2289 # Strip non-approved attributes from the tag
2290 $newparams = $this->fixTagAttributes($params);
2291
2292 }
2293 if ( ! $badtag ) {
2294 $rest = str_replace( '>', '&gt;', $rest );
2295 $text .= "<$slash$t $newparams$brace$rest";
2296 continue;
2297 }
2298 }
2299 $text .= '&lt;' . str_replace( '>', '&gt;', $x);
2300 }
2301 # Close off any remaining tags
2302 while ( is_array( $tagstack ) && ($t = array_pop( $tagstack )) ) {
2303 $text .= "</$t>\n";
2304 if ( $t == 'table' ) { $tagstack = array_pop( $tablestack ); }
2305 }
2306 } else {
2307 # this might be possible using tidy itself
2308 foreach ( $bits as $x ) {
2309 preg_match( '/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/',
2310 $x, $regs );
2311 @list( $qbar, $slash, $t, $params, $brace, $rest ) = $regs;
2312 if ( in_array( $t = strtolower( $t ), $htmlelements ) ) {
2313 $newparams = $this->fixTagAttributes($params);
2314 $rest = str_replace( '>', '&gt;', $rest );
2315 $text .= "<$slash$t $newparams$brace$rest";
2316 } else {
2317 $text .= '&lt;' . str_replace( '>', '&gt;', $x);
2318 }
2319 }
2320 }
2321 wfProfileOut( $fname );
2322 return $text;
2323 }
2324
2325 /**
2326 * Remove '<!--', '-->', and everything between.
2327 * To avoid leaving blank lines, when a comment is both preceded
2328 * and followed by a newline (ignoring spaces), trim leading and
2329 * trailing spaces and one of the newlines.
2330 *
2331 * @access private
2332 */
2333 function removeHTMLcomments( $text ) {
2334 $fname='Parser::removeHTMLcomments';
2335 wfProfileIn( $fname );
2336 while (($start = strpos($text, '<!--')) !== false) {
2337 $end = strpos($text, '-->', $start + 4);
2338 if ($end === false) {
2339 # Unterminated comment; bail out
2340 break;
2341 }
2342
2343 $end += 3;
2344
2345 # Trim space and newline if the comment is both
2346 # preceded and followed by a newline
2347 $spaceStart = max($start - 1, 0);
2348 $spaceLen = $end - $spaceStart;
2349 while (substr($text, $spaceStart, 1) === ' ' && $spaceStart > 0) {
2350 $spaceStart--;
2351 $spaceLen++;
2352 }
2353 while (substr($text, $spaceStart + $spaceLen, 1) === ' ')
2354 $spaceLen++;
2355 if (substr($text, $spaceStart, 1) === "\n" and substr($text, $spaceStart + $spaceLen, 1) === "\n") {
2356 # Remove the comment, leading and trailing
2357 # spaces, and leave only one newline.
2358 $text = substr_replace($text, "\n", $spaceStart, $spaceLen + 1);
2359 }
2360 else {
2361 # Remove just the comment.
2362 $text = substr_replace($text, '', $start, $end - $start);
2363 }
2364 }
2365 wfProfileOut( $fname );
2366 return $text;
2367 }
2368
2369 /**
2370 * This function accomplishes several tasks:
2371 * 1) Auto-number headings if that option is enabled
2372 * 2) Add an [edit] link to sections for logged in users who have enabled the option
2373 * 3) Add a Table of contents on the top for users who have enabled the option
2374 * 4) Auto-anchor headings
2375 *
2376 * It loops through all headlines, collects the necessary data, then splits up the
2377 * string and re-inserts the newly formatted headlines.
2378 * @access private
2379 */
2380 /* private */ function formatHeadings( $text, $isMain=true ) {
2381 global $wgInputEncoding, $wgMaxTocLevel, $wgContLang, $wgLinkHolders;
2382
2383 $doNumberHeadings = $this->mOptions->getNumberHeadings();
2384 $doShowToc = $this->mOptions->getShowToc();
2385 $forceTocHere = false;
2386 if( !$this->mTitle->userCanEdit() ) {
2387 $showEditLink = 0;
2388 $rightClickHack = 0;
2389 } else {
2390 $showEditLink = $this->mOptions->getEditSection();
2391 $rightClickHack = $this->mOptions->getEditSectionOnRightClick();
2392 }
2393
2394 # Inhibit editsection links if requested in the page
2395 $esw =& MagicWord::get( MAG_NOEDITSECTION );
2396 if( $esw->matchAndRemove( $text ) ) {
2397 $showEditLink = 0;
2398 }
2399 # if the string __NOTOC__ (not case-sensitive) occurs in the HTML,
2400 # do not add TOC
2401 $mw =& MagicWord::get( MAG_NOTOC );
2402 if( $mw->matchAndRemove( $text ) ) {
2403 $doShowToc = 0;
2404 }
2405
2406 # never add the TOC to the Main Page. This is an entry page that should not
2407 # be more than 1-2 screens large anyway
2408 if( $this->mTitle->getPrefixedText() == wfMsg('mainpage') ) {
2409 $doShowToc = 0;
2410 }
2411
2412 # Get all headlines for numbering them and adding funky stuff like [edit]
2413 # links - this is for later, but we need the number of headlines right now
2414 $numMatches = preg_match_all( '/<H([1-6])(.*?' . '>)(.*?)<\/H[1-6]>/i', $text, $matches );
2415
2416 # if there are fewer than 4 headlines in the article, do not show TOC
2417 if( $numMatches < 4 ) {
2418 $doShowToc = 0;
2419 }
2420
2421 # if the string __TOC__ (not case-sensitive) occurs in the HTML,
2422 # override above conditions and always show TOC at that place
2423 $mw =& MagicWord::get( MAG_TOC );
2424 if ($mw->match( $text ) ) {
2425 $doShowToc = 1;
2426 $forceTocHere = true;
2427 } else {
2428 # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
2429 # override above conditions and always show TOC above first header
2430 $mw =& MagicWord::get( MAG_FORCETOC );
2431 if ($mw->matchAndRemove( $text ) ) {
2432 $doShowToc = 1;
2433 }
2434 }
2435
2436
2437
2438 # We need this to perform operations on the HTML
2439 $sk =& $this->mOptions->getSkin();
2440
2441 # headline counter
2442 $headlineCount = 0;
2443 $sectionCount = 0; # headlineCount excluding template sections
2444
2445 # Ugh .. the TOC should have neat indentation levels which can be
2446 # passed to the skin functions. These are determined here
2447 $toclevel = 0;
2448 $toc = '';
2449 $full = '';
2450 $head = array();
2451 $sublevelCount = array();
2452 $level = 0;
2453 $prevlevel = 0;
2454 foreach( $matches[3] as $headline ) {
2455 $istemplate = 0;
2456 $templatetitle = "";
2457 $templatesection = 0;
2458
2459 if (preg_match("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", $headline, $mat)) {
2460 $istemplate = 1;
2461 $templatetitle = base64_decode($mat[1]);
2462 $templatesection = 1 + (int)base64_decode($mat[2]);
2463 $headline = preg_replace("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", "", $headline);
2464 }
2465
2466 $numbering = '';
2467 if( $level ) {
2468 $prevlevel = $level;
2469 }
2470 $level = $matches[1][$headlineCount];
2471 if( ( $doNumberHeadings || $doShowToc ) && $prevlevel && $level > $prevlevel ) {
2472 # reset when we enter a new level
2473 $sublevelCount[$level] = 0;
2474 $toc .= $sk->tocIndent( $level - $prevlevel );
2475 $toclevel += $level - $prevlevel;
2476 }
2477 if( ( $doNumberHeadings || $doShowToc ) && $level < $prevlevel ) {
2478 # reset when we step back a level
2479 $sublevelCount[$level+1]=0;
2480 $toc .= $sk->tocUnindent( $prevlevel - $level );
2481 $toclevel -= $prevlevel - $level;
2482 }
2483 # count number of headlines for each level
2484 @$sublevelCount[$level]++;
2485 if( $doNumberHeadings || $doShowToc ) {
2486 $dot = 0;
2487 for( $i = 1; $i <= $level; $i++ ) {
2488 if( !empty( $sublevelCount[$i] ) ) {
2489 if( $dot ) {
2490 $numbering .= '.';
2491 }
2492 $numbering .= $wgContLang->formatNum( $sublevelCount[$i] );
2493 $dot = 1;
2494 }
2495 }
2496 }
2497
2498 # The canonized header is a version of the header text safe to use for links
2499 # Avoid insertion of weird stuff like <math> by expanding the relevant sections
2500 $canonized_headline = $this->unstrip( $headline, $this->mStripState );
2501 $canonized_headline = $this->unstripNoWiki( $headline, $this->mStripState );
2502
2503 # Remove link placeholders by the link text.
2504 # <!--LINK number-->
2505 # turns into
2506 # link text with suffix
2507 $canonized_headline = preg_replace( '/<!--LINK ([0-9]*)-->/e',
2508 "\$wgLinkHolders['texts'][\$1]",
2509 $canonized_headline );
2510
2511 # strip out HTML
2512 $canonized_headline = preg_replace( '/<.*?' . '>/','',$canonized_headline );
2513 $tocline = trim( $canonized_headline );
2514 $canonized_headline = urlencode( do_html_entity_decode( str_replace(' ', '_', $tocline), ENT_COMPAT, $wgInputEncoding ) );
2515 $replacearray = array(
2516 '%3A' => ':',
2517 '%' => '.'
2518 );
2519 $canonized_headline = str_replace(array_keys($replacearray),array_values($replacearray),$canonized_headline);
2520 $refer[$headlineCount] = $canonized_headline;
2521
2522 # count how many in assoc. array so we can track dupes in anchors
2523 @$refers[$canonized_headline]++;
2524 $refcount[$headlineCount]=$refers[$canonized_headline];
2525
2526 # Prepend the number to the heading text
2527
2528 if( $doNumberHeadings || $doShowToc ) {
2529 $tocline = $numbering . ' ' . $tocline;
2530
2531 # Don't number the heading if it is the only one (looks silly)
2532 if( $doNumberHeadings && count( $matches[3] ) > 1) {
2533 # the two are different if the line contains a link
2534 $headline=$numbering . ' ' . $headline;
2535 }
2536 }
2537
2538 # Create the anchor for linking from the TOC to the section
2539 $anchor = $canonized_headline;
2540 if($refcount[$headlineCount] > 1 ) {
2541 $anchor .= '_' . $refcount[$headlineCount];
2542 }
2543 if( $doShowToc && ( !isset($wgMaxTocLevel) || $toclevel<$wgMaxTocLevel ) ) {
2544 $toc .= $sk->tocLine($anchor,$tocline,$toclevel);
2545 }
2546 if( $showEditLink && ( !$istemplate || $templatetitle !== "" ) ) {
2547 if ( empty( $head[$headlineCount] ) ) {
2548 $head[$headlineCount] = '';
2549 }
2550 if( $istemplate )
2551 $head[$headlineCount] .= $sk->editSectionLinkForOther($templatetitle, $templatesection);
2552 else
2553 $head[$headlineCount] .= $sk->editSectionLink($this->mTitle, $sectionCount+1);
2554 }
2555
2556 # Add the edit section span
2557 if( $rightClickHack ) {
2558 if( $istemplate )
2559 $headline = $sk->editSectionScriptForOther($templatetitle, $templatesection, $headline);
2560 else
2561 $headline = $sk->editSectionScript($this->mTitle, $sectionCount+1,$headline);
2562 }
2563
2564 # give headline the correct <h#> tag
2565 @$head[$headlineCount] .= "<a name=\"$anchor\"></a><h".$level.$matches[2][$headlineCount] .$headline.'</h'.$level.'>';
2566
2567 $headlineCount++;
2568 if( !$istemplate )
2569 $sectionCount++;
2570 }
2571
2572 if( $doShowToc ) {
2573 $toclines = $headlineCount;
2574 $toc .= $sk->tocUnindent( $toclevel );
2575 $toc = $sk->tocTable( $toc );
2576 }
2577
2578 # split up and insert constructed headlines
2579
2580 $blocks = preg_split( '/<H[1-6].*?' . '>.*?<\/H[1-6]>/i', $text );
2581 $i = 0;
2582
2583 foreach( $blocks as $block ) {
2584 if( $showEditLink && $headlineCount > 0 && $i == 0 && $block != "\n" ) {
2585 # This is the [edit] link that appears for the top block of text when
2586 # section editing is enabled
2587
2588 # Disabled because it broke block formatting
2589 # For example, a bullet point in the top line
2590 # $full .= $sk->editSectionLink(0);
2591 }
2592 $full .= $block;
2593 if( $doShowToc && !$i && $isMain && !$forceTocHere) {
2594 # Top anchor now in skin
2595 $full = $full.$toc;
2596 }
2597
2598 if( !empty( $head[$i] ) ) {
2599 $full .= $head[$i];
2600 }
2601 $i++;
2602 }
2603 if($forceTocHere) {
2604 $mw =& MagicWord::get( MAG_TOC );
2605 return $mw->replace( $toc, $full );
2606 } else {
2607 return $full;
2608 }
2609 }
2610
2611 /**
2612 * Return an HTML link for the "ISBN 123456" text
2613 * @access private
2614 */
2615 function magicISBN( $text ) {
2616 global $wgLang;
2617 $fname = 'Parser::magicISBN';
2618 wfProfileIn( $fname );
2619
2620 $a = split( 'ISBN ', ' '.$text );
2621 if ( count ( $a ) < 2 ) {
2622 wfProfileOut( $fname );
2623 return $text;
2624 }
2625 $text = substr( array_shift( $a ), 1);
2626 $valid = '0123456789-ABCDEFGHIJKLMNOPQRSTUVWXYZ';
2627
2628 foreach ( $a as $x ) {
2629 $isbn = $blank = '' ;
2630 while ( ' ' == $x{0} ) {
2631 $blank .= ' ';
2632 $x = substr( $x, 1 );
2633 }
2634 if ( $x == '' ) { # blank isbn
2635 $text .= "ISBN $blank";
2636 continue;
2637 }
2638 while ( strstr( $valid, $x{0} ) != false ) {
2639 $isbn .= $x{0};
2640 $x = substr( $x, 1 );
2641 }
2642 $num = str_replace( '-', '', $isbn );
2643 $num = str_replace( ' ', '', $num );
2644
2645 if ( '' == $num ) {
2646 $text .= "ISBN $blank$x";
2647 } else {
2648 $titleObj = Title::makeTitle( NS_SPECIAL, 'Booksources' );
2649 $text .= '<a href="' .
2650 $titleObj->escapeLocalUrl( 'isbn='.$num ) .
2651 "\" class=\"internal\">ISBN $isbn</a>";
2652 $text .= $x;
2653 }
2654 }
2655 wfProfileOut( $fname );
2656 return $text;
2657 }
2658
2659 /**
2660 * Return an HTML link for the "GEO ..." text
2661 * @access private
2662 */
2663 function magicGEO( $text ) {
2664 global $wgLang, $wgUseGeoMode;
2665 $fname = 'Parser::magicGEO';
2666 wfProfileIn( $fname );
2667
2668 # These next five lines are only for the ~35000 U.S. Census Rambot pages...
2669 $directions = array ( 'N' => 'North' , 'S' => 'South' , 'E' => 'East' , 'W' => 'West' ) ;
2670 $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['N']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['W']}/" , "(GEO +\$1.\$2.\$3:-\$4.\$5.\$6)" , $text ) ;
2671 $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['N']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['E']}/" , "(GEO +\$1.\$2.\$3:+\$4.\$5.\$6)" , $text ) ;
2672 $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['S']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['W']}/" , "(GEO +\$1.\$2.\$3:-\$4.\$5.\$6)" , $text ) ;
2673 $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['S']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['E']}/" , "(GEO +\$1.\$2.\$3:+\$4.\$5.\$6)" , $text ) ;
2674
2675 $a = split( 'GEO ', ' '.$text );
2676 if ( count ( $a ) < 2 ) {
2677 wfProfileOut( $fname );
2678 return $text;
2679 }
2680 $text = substr( array_shift( $a ), 1);
2681 $valid = '0123456789.+-:';
2682
2683 foreach ( $a as $x ) {
2684 $geo = $blank = '' ;
2685 while ( ' ' == $x{0} ) {
2686 $blank .= ' ';
2687 $x = substr( $x, 1 );
2688 }
2689 while ( strstr( $valid, $x{0} ) != false ) {
2690 $geo .= $x{0};
2691 $x = substr( $x, 1 );
2692 }
2693 $num = str_replace( '+', '', $geo );
2694 $num = str_replace( ' ', '', $num );
2695
2696 if ( '' == $num || count ( explode ( ':' , $num , 3 ) ) < 2 ) {
2697 $text .= "GEO $blank$x";
2698 } else {
2699 $titleObj = Title::makeTitle( NS_SPECIAL, 'Geo' );
2700 $text .= '<a href="' .
2701 $titleObj->escapeLocalUrl( 'coordinates='.$num ) .
2702 "\" class=\"internal\">GEO $geo</a>";
2703 $text .= $x;
2704 }
2705 }
2706 wfProfileOut( $fname );
2707 return $text;
2708 }
2709
2710 /**
2711 * Return an HTML link for the "RFC 1234" text
2712 * @access private
2713 * @param string $text text to be processed
2714 */
2715 function magicRFC( $text, $keyword='RFC ', $urlmsg='rfcurl' ) {
2716 global $wgLang;
2717
2718 $valid = '0123456789';
2719 $internal = false;
2720
2721 $a = split( $keyword, ' '.$text );
2722 if ( count ( $a ) < 2 ) {
2723 return $text;
2724 }
2725 $text = substr( array_shift( $a ), 1);
2726
2727 /* Check if keyword is preceed by [[.
2728 * This test is made here cause of the array_shift above
2729 * that prevent the test to be done in the foreach.
2730 */
2731 if ( substr( $text, -2 ) == '[[' ) {
2732 $internal = true;
2733 }
2734
2735 foreach ( $a as $x ) {
2736 /* token might be empty if we have RFC RFC 1234 */
2737 if ( $x=='' ) {
2738 $text.=$keyword;
2739 continue;
2740 }
2741
2742 $id = $blank = '' ;
2743
2744 /** remove and save whitespaces in $blank */
2745 while ( $x{0} == ' ' ) {
2746 $blank .= ' ';
2747 $x = substr( $x, 1 );
2748 }
2749
2750 /** remove and save the rfc number in $id */
2751 while ( strstr( $valid, $x{0} ) != false ) {
2752 $id .= $x{0};
2753 $x = substr( $x, 1 );
2754 }
2755
2756 if ( $id == '' ) {
2757 /* call back stripped spaces*/
2758 $text .= $keyword.$blank.$x;
2759 } elseif( $internal ) {
2760 /* normal link */
2761 $text .= $keyword.$id.$x;
2762 } else {
2763 /* build the external link*/
2764 $url = wfmsg( $urlmsg );
2765 $url = str_replace( '$1', $id, $url);
2766 $sk =& $this->mOptions->getSkin();
2767 $la = $sk->getExternalLinkAttributes( $url, $keyword.$id );
2768 $text .= "<a href='{$url}'{$la}>{$keyword}{$id}</a>{$x}";
2769 }
2770
2771 /* Check if the next RFC keyword is preceed by [[ */
2772 $internal = ( substr($x,-2) == '[[' );
2773 }
2774 return $text;
2775 }
2776
2777 /**
2778 * Transform wiki markup when saving a page by doing \r\n -> \n
2779 * conversion, substitting signatures, {{subst:}} templates, etc.
2780 *
2781 * @param string $text the text to transform
2782 * @param Title &$title the Title object for the current article
2783 * @param User &$user the User object describing the current user
2784 * @param ParserOptions $options parsing options
2785 * @param bool $clearState whether to clear the parser state first
2786 * @return string the altered wiki markup
2787 * @access public
2788 */
2789 function preSaveTransform( $text, &$title, &$user, $options, $clearState = true ) {
2790 $this->mOptions = $options;
2791 $this->mTitle =& $title;
2792 $this->mOutputType = OT_WIKI;
2793
2794 if ( $clearState ) {
2795 $this->clearState();
2796 }
2797
2798 $stripState = false;
2799 $pairs = array(
2800 "\r\n" => "\n",
2801 );
2802 $text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text );
2803 $text = $this->strip( $text, $stripState, false );
2804 $text = $this->pstPass2( $text, $user );
2805 $text = $this->unstrip( $text, $stripState );
2806 $text = $this->unstripNoWiki( $text, $stripState );
2807 return $text;
2808 }
2809
2810 /**
2811 * Pre-save transform helper function
2812 * @access private
2813 */
2814 function pstPass2( $text, &$user ) {
2815 global $wgLang, $wgContLang, $wgLocaltimezone;
2816
2817 # Variable replacement
2818 # Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
2819 $text = $this->replaceVariables( $text );
2820
2821 # Signatures
2822 #
2823 $n = $user->getName();
2824 $k = $user->getOption( 'nickname' );
2825 if ( '' == $k ) { $k = $n; }
2826 if ( isset( $wgLocaltimezone ) ) {
2827 $oldtz = getenv( 'TZ' );
2828 putenv( 'TZ='.$wgLocaltimezone );
2829 }
2830 /* Note: this is an ugly timezone hack for the European wikis */
2831 $d = $wgContLang->timeanddate( date( 'YmdHis' ), false ) .
2832 ' (' . date( 'T' ) . ')';
2833 if ( isset( $wgLocaltimezone ) ) {
2834 putenv( 'TZ='.$oldtzs );
2835 }
2836
2837 $text = preg_replace( '/~~~~~~/', $d, $text );
2838 $text = preg_replace( '/~~~~/', '[[' . $wgContLang->getNsText( NS_USER ) . ":$n|$k]] $d", $text );
2839 $text = preg_replace( '/~~~/', '[[' . $wgContLang->getNsText( NS_USER ) . ":$n|$k]]", $text );
2840
2841 # Context links: [[|name]] and [[name (context)|]]
2842 #
2843 $tc = "[&;%\\-,.\\(\\)' _0-9A-Za-z\\/:\\x80-\\xff]";
2844 $np = "[&;%\\-,.' _0-9A-Za-z\\/:\\x80-\\xff]"; # No parens
2845 $namespacechar = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii!
2846 $conpat = "/^({$np}+) \\(({$tc}+)\\)$/";
2847
2848 $p1 = "/\[\[({$np}+) \\(({$np}+)\\)\\|]]/"; # [[page (context)|]]
2849 $p2 = "/\[\[\\|({$tc}+)]]/"; # [[|page]]
2850 $p3 = "/\[\[(:*$namespacechar+):({$np}+)\\|]]/"; # [[namespace:page|]] and [[:namespace:page|]]
2851 $p4 = "/\[\[(:*$namespacechar+):({$np}+) \\(({$np}+)\\)\\|]]/"; # [[ns:page (cont)|]] and [[:ns:page (cont)|]]
2852 $context = '';
2853 $t = $this->mTitle->getText();
2854 if ( preg_match( $conpat, $t, $m ) ) {
2855 $context = $m[2];
2856 }
2857 $text = preg_replace( $p4, '[[\\1:\\2 (\\3)|\\2]]', $text );
2858 $text = preg_replace( $p1, '[[\\1 (\\2)|\\1]]', $text );
2859 $text = preg_replace( $p3, '[[\\1:\\2|\\2]]', $text );
2860
2861 if ( '' == $context ) {
2862 $text = preg_replace( $p2, '[[\\1]]', $text );
2863 } else {
2864 $text = preg_replace( $p2, "[[\\1 ({$context})|\\1]]", $text );
2865 }
2866
2867 # Trim trailing whitespace
2868 # MAG_END (__END__) tag allows for trailing
2869 # whitespace to be deliberately included
2870 $text = rtrim( $text );
2871 $mw =& MagicWord::get( MAG_END );
2872 $mw->matchAndRemove( $text );
2873
2874 return $text;
2875 }
2876
2877 /**
2878 * Set up some variables which are usually set up in parse()
2879 * so that an external function can call some class members with confidence
2880 * @access public
2881 */
2882 function startExternalParse( &$title, $options, $outputType, $clearState = true ) {
2883 $this->mTitle =& $title;
2884 $this->mOptions = $options;
2885 $this->mOutputType = $outputType;
2886 if ( $clearState ) {
2887 $this->clearState();
2888 }
2889 }
2890
2891 /**
2892 * Transform a MediaWiki message by replacing magic variables.
2893 *
2894 * @param string $text the text to transform
2895 * @param ParserOptions $options options
2896 * @return string the text with variables substituted
2897 * @access public
2898 */
2899 function transformMsg( $text, $options ) {
2900 global $wgTitle;
2901 static $executing = false;
2902
2903 # Guard against infinite recursion
2904 if ( $executing ) {
2905 return $text;
2906 }
2907 $executing = true;
2908
2909 $this->mTitle = $wgTitle;
2910 $this->mOptions = $options;
2911 $this->mOutputType = OT_MSG;
2912 $this->clearState();
2913 $text = $this->replaceVariables( $text );
2914
2915 $executing = false;
2916 return $text;
2917 }
2918
2919 /**
2920 * Create an HTML-style tag, e.g. <yourtag>special text</yourtag>
2921 * Callback will be called with the text within
2922 * Transform and return the text within
2923 * @access public
2924 */
2925 function setHook( $tag, $callback ) {
2926 $oldVal = @$this->mTagHooks[$tag];
2927 $this->mTagHooks[$tag] = $callback;
2928 return $oldVal;
2929 }
2930
2931 /**
2932 * Replace <!--LINK--> link placeholders with actual links, in the buffer
2933 * Placeholders created in Skin::makeLinkObj()
2934 * Returns an array of links found, indexed by PDBK:
2935 * 0 - broken
2936 * 1 - normal link
2937 * 2 - stub
2938 * $options is a bit field, RLH_FOR_UPDATE to select for update
2939 */
2940 function replaceLinkHolders( &$text, $options = 0 ) {
2941 global $wgUser, $wgLinkCache, $wgUseOldExistenceCheck, $wgLinkHolders;
2942 global $wgInterwikiLinkHolders;
2943 global $outputReplace;
2944
2945 if ( $wgUseOldExistenceCheck ) {
2946 return array();
2947 }
2948
2949 $fname = 'Parser::replaceLinkHolders';
2950 wfProfileIn( $fname );
2951
2952 $pdbks = array();
2953 $colours = array();
2954
2955 #if ( !empty( $tmpLinks[0] ) ) { #TODO
2956 if ( !empty( $wgLinkHolders['namespaces'] ) ) {
2957 wfProfileIn( $fname.'-check' );
2958 $dbr =& wfGetDB( DB_SLAVE );
2959 $page = $dbr->tableName( 'page' );
2960 $sk = $wgUser->getSkin();
2961 $threshold = $wgUser->getOption('stubthreshold');
2962
2963 # Sort by namespace
2964 asort( $wgLinkHolders['namespaces'] );
2965
2966 # Generate query
2967 $query = false;
2968 foreach ( $wgLinkHolders['namespaces'] as $key => $val ) {
2969 # Make title object
2970 $title = $wgLinkHolders['titles'][$key];
2971
2972 # Skip invalid entries.
2973 # Result will be ugly, but prevents crash.
2974 if ( is_null( $title ) ) {
2975 continue;
2976 }
2977 $pdbk = $pdbks[$key] = $title->getPrefixedDBkey();
2978
2979 # Check if it's in the link cache already
2980 if ( $wgLinkCache->getGoodLinkID( $pdbk ) ) {
2981 $colours[$pdbk] = 1;
2982 } elseif ( $wgLinkCache->isBadLink( $pdbk ) ) {
2983 $colours[$pdbk] = 0;
2984 } else {
2985 # Not in the link cache, add it to the query
2986 if ( !isset( $current ) ) {
2987 $current = $val;
2988 $tables = $page;
2989 $join = '';
2990 $query = "SELECT page_id, page_namespace, page_title";
2991 if ( $threshold > 0 ) {
2992 $textTable = $dbr->tableName( 'text' );
2993 $query .= ', LENGTH(old_text) AS page_len, page_is_redirect';
2994 $tables .= ", $textTable";
2995 $join = 'page_latest=old_id AND';
2996 }
2997 $query .= " FROM $tables WHERE $join (page_namespace=$val AND page_title IN(";
2998 } elseif ( $current != $val ) {
2999 $current = $val;
3000 $query .= ")) OR (page_namespace=$val AND page_title IN(";
3001 } else {
3002 $query .= ', ';
3003 }
3004
3005 $query .= $dbr->addQuotes( $wgLinkHolders['dbkeys'][$key] );
3006 }
3007 }
3008 if ( $query ) {
3009 $query .= '))';
3010 if ( $options & RLH_FOR_UPDATE ) {
3011 $query .= ' FOR UPDATE';
3012 }
3013
3014 $res = $dbr->query( $query, $fname );
3015
3016 # Fetch data and form into an associative array
3017 # non-existent = broken
3018 # 1 = known
3019 # 2 = stub
3020 while ( $s = $dbr->fetchObject($res) ) {
3021 $title = Title::makeTitle( $s->page_namespace, $s->page_title );
3022 $pdbk = $title->getPrefixedDBkey();
3023 $wgLinkCache->addGoodLink( $s->page_id, $pdbk );
3024
3025 if ( $threshold > 0 ) {
3026 $size = $s->page_len;
3027 if ( $s->page_is_redirect || $s->page_namespace != 0 || $length < $threshold ) {
3028 $colours[$pdbk] = 1;
3029 } else {
3030 $colours[$pdbk] = 2;
3031 }
3032 } else {
3033 $colours[$pdbk] = 1;
3034 }
3035 }
3036 }
3037 wfProfileOut( $fname.'-check' );
3038
3039 # Construct search and replace arrays
3040 wfProfileIn( $fname.'-construct' );
3041 $outputReplace = array();
3042 foreach ( $wgLinkHolders['namespaces'] as $key => $ns ) {
3043 $pdbk = $pdbks[$key];
3044 $searchkey = '<!--LINK '.$key.'-->';
3045 $title = $wgLinkHolders['titles'][$key];
3046 if ( empty( $colours[$pdbk] ) ) {
3047 $wgLinkCache->addBadLink( $pdbk );
3048 $colours[$pdbk] = 0;
3049 $outputReplace[$searchkey] = $sk->makeBrokenLinkObj( $title,
3050 $wgLinkHolders['texts'][$key],
3051 $wgLinkHolders['queries'][$key] );
3052 } elseif ( $colours[$pdbk] == 1 ) {
3053 $outputReplace[$searchkey] = $sk->makeKnownLinkObj( $title,
3054 $wgLinkHolders['texts'][$key],
3055 $wgLinkHolders['queries'][$key] );
3056 } elseif ( $colours[$pdbk] == 2 ) {
3057 $outputReplace[$searchkey] = $sk->makeStubLinkObj( $title,
3058 $wgLinkHolders['texts'][$key],
3059 $wgLinkHolders['queries'][$key] );
3060 }
3061 }
3062 wfProfileOut( $fname.'-construct' );
3063
3064 # Do the thing
3065 wfProfileIn( $fname.'-replace' );
3066
3067 $text = preg_replace_callback(
3068 '/(<!--LINK .*?-->)/',
3069 "outputReplaceMatches",
3070 $text);
3071 wfProfileOut( $fname.'-replace' );
3072 }
3073
3074 if ( !empty( $wgInterwikiLinkHolders ) ) {
3075 wfProfileIn( $fname.'-interwiki' );
3076 $outputReplace = $wgInterwikiLinkHolders;
3077 $text = preg_replace_callback(
3078 '/<!--IWLINK (.*?)-->/',
3079 "outputReplaceMatches",
3080 $text );
3081 wfProfileOut( $fname.'-interwiki' );
3082 }
3083
3084 wfProfileOut( $fname );
3085 return $colours;
3086 }
3087
3088 /**
3089 * Renders an image gallery from a text with one line per image.
3090 * text labels may be given by using |-style alternative text. E.g.
3091 * Image:one.jpg|The number "1"
3092 * Image:tree.jpg|A tree
3093 * given as text will return the HTML of a gallery with two images,
3094 * labeled 'The number "1"' and
3095 * 'A tree'.
3096 */
3097 function renderImageGallery( $text ) {
3098 global $wgLinkCache;
3099 $ig = new ImageGallery();
3100 $ig->setShowBytes( false );
3101 $ig->setShowFilename( false );
3102 $lines = explode( "\n", $text );
3103
3104 foreach ( $lines as $line ) {
3105 # match lines like these:
3106 # Image:someimage.jpg|This is some image
3107 preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
3108 # Skip empty lines
3109 if ( count( $matches ) == 0 ) {
3110 continue;
3111 }
3112 $nt = Title::newFromURL( $matches[1] );
3113 if( is_null( $nt ) ) {
3114 # Bogus title. Ignore these so we don't bomb out later.
3115 continue;
3116 }
3117 if ( isset( $matches[3] ) ) {
3118 $label = $matches[3];
3119 } else {
3120 $label = '';
3121 }
3122
3123 # FIXME: Use the full wiki parser and add its links
3124 # to the page's links.
3125 $html = $this->mOptions->mSkin->formatComment( $label );
3126
3127 $ig->add( Image::newFromTitle( $nt ), $html );
3128 $wgLinkCache->addImageLinkObj( $nt );
3129 }
3130 return $ig->toHTML();
3131 }
3132 }
3133
3134 /**
3135 * @todo document
3136 * @package MediaWiki
3137 */
3138 class ParserOutput
3139 {
3140 var $mText, $mLanguageLinks, $mCategoryLinks, $mContainsOldMagic;
3141 var $mCacheTime; # Used in ParserCache
3142 var $mVersion; # Compatibility check
3143
3144 function ParserOutput( $text = '', $languageLinks = array(), $categoryLinks = array(),
3145 $containsOldMagic = false )
3146 {
3147 $this->mText = $text;
3148 $this->mLanguageLinks = $languageLinks;
3149 $this->mCategoryLinks = $categoryLinks;
3150 $this->mContainsOldMagic = $containsOldMagic;
3151 $this->mCacheTime = '';
3152 $this->mVersion = MW_PARSER_VERSION;
3153 }
3154
3155 function getText() { return $this->mText; }
3156 function getLanguageLinks() { return $this->mLanguageLinks; }
3157 function getCategoryLinks() { return array_keys( $this->mCategoryLinks ); }
3158 function getCacheTime() { return $this->mCacheTime; }
3159 function containsOldMagic() { return $this->mContainsOldMagic; }
3160 function setText( $text ) { return wfSetVar( $this->mText, $text ); }
3161 function setLanguageLinks( $ll ) { return wfSetVar( $this->mLanguageLinks, $ll ); }
3162 function setCategoryLinks( $cl ) { return wfSetVar( $this->mCategoryLinks, $cl ); }
3163 function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
3164 function setCacheTime( $t ) { return wfSetVar( $this->mCacheTime, $t ); }
3165 function addCategoryLink( $c ) { $this->mCategoryLinks[$c] = 1; }
3166
3167 function merge( $other ) {
3168 $this->mLanguageLinks = array_merge( $this->mLanguageLinks, $other->mLanguageLinks );
3169 $this->mCategoryLinks = array_merge( $this->mCategoryLinks, $this->mLanguageLinks );
3170 $this->mContainsOldMagic = $this->mContainsOldMagic || $other->mContainsOldMagic;
3171 }
3172
3173 /**
3174 * Return true if this cached output object predates the global or
3175 * per-article cache invalidation timestamps, or if it comes from
3176 * an incompatible older version.
3177 *
3178 * @param string $touched the affected article's last touched timestamp
3179 * @return bool
3180 * @access public
3181 */
3182 function expired( $touched ) {
3183 global $wgCacheEpoch;
3184 return $this->getCacheTime() <= $touched ||
3185 $this->getCacheTime() <= $wgCacheEpoch ||
3186 !isset( $this->mVersion ) ||
3187 version_compare( $this->mVersion, MW_PARSER_VERSION, "lt" );
3188 }
3189 }
3190
3191 /**
3192 * Set options of the Parser
3193 * @todo document
3194 * @package MediaWiki
3195 */
3196 class ParserOptions
3197 {
3198 # All variables are private
3199 var $mUseTeX; # Use texvc to expand <math> tags
3200 var $mUseDynamicDates; # Use $wgDateFormatter to format dates
3201 var $mInterwikiMagic; # Interlanguage links are removed and returned in an array
3202 var $mAllowExternalImages; # Allow external images inline
3203 var $mSkin; # Reference to the preferred skin
3204 var $mDateFormat; # Date format index
3205 var $mEditSection; # Create "edit section" links
3206 var $mEditSectionOnRightClick; # Generate JavaScript to edit section on right click
3207 var $mNumberHeadings; # Automatically number headings
3208 var $mShowToc; # Show table of contents
3209
3210 function getUseTeX() { return $this->mUseTeX; }
3211 function getUseDynamicDates() { return $this->mUseDynamicDates; }
3212 function getInterwikiMagic() { return $this->mInterwikiMagic; }
3213 function getAllowExternalImages() { return $this->mAllowExternalImages; }
3214 function getSkin() { return $this->mSkin; }
3215 function getDateFormat() { return $this->mDateFormat; }
3216 function getEditSection() { return $this->mEditSection; }
3217 function getEditSectionOnRightClick() { return $this->mEditSectionOnRightClick; }
3218 function getNumberHeadings() { return $this->mNumberHeadings; }
3219 function getShowToc() { return $this->mShowToc; }
3220
3221 function setUseTeX( $x ) { return wfSetVar( $this->mUseTeX, $x ); }
3222 function setUseDynamicDates( $x ) { return wfSetVar( $this->mUseDynamicDates, $x ); }
3223 function setInterwikiMagic( $x ) { return wfSetVar( $this->mInterwikiMagic, $x ); }
3224 function setAllowExternalImages( $x ) { return wfSetVar( $this->mAllowExternalImages, $x ); }
3225 function setDateFormat( $x ) { return wfSetVar( $this->mDateFormat, $x ); }
3226 function setEditSection( $x ) { return wfSetVar( $this->mEditSection, $x ); }
3227 function setEditSectionOnRightClick( $x ) { return wfSetVar( $this->mEditSectionOnRightClick, $x ); }
3228 function setNumberHeadings( $x ) { return wfSetVar( $this->mNumberHeadings, $x ); }
3229 function setShowToc( $x ) { return wfSetVar( $this->mShowToc, $x ); }
3230
3231 function setSkin( &$x ) { $this->mSkin =& $x; }
3232
3233 # Get parser options
3234 /* static */ function newFromUser( &$user ) {
3235 $popts = new ParserOptions;
3236 $popts->initialiseFromUser( $user );
3237 return $popts;
3238 }
3239
3240 # Get user options
3241 function initialiseFromUser( &$userInput ) {
3242 global $wgUseTeX, $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
3243 $fname = 'ParserOptions::initialiseFromUser';
3244 wfProfileIn( $fname );
3245 if ( !$userInput ) {
3246 $user = new User;
3247 $user->setLoaded( true );
3248 } else {
3249 $user =& $userInput;
3250 }
3251
3252 $this->mUseTeX = $wgUseTeX;
3253 $this->mUseDynamicDates = $wgUseDynamicDates;
3254 $this->mInterwikiMagic = $wgInterwikiMagic;
3255 $this->mAllowExternalImages = $wgAllowExternalImages;
3256 wfProfileIn( $fname.'-skin' );
3257 $this->mSkin =& $user->getSkin();
3258 wfProfileOut( $fname.'-skin' );
3259 $this->mDateFormat = $user->getOption( 'date' );
3260 $this->mEditSection = $user->getOption( 'editsection' );
3261 $this->mEditSectionOnRightClick = $user->getOption( 'editsectiononrightclick' );
3262 $this->mNumberHeadings = $user->getOption( 'numberheadings' );
3263 $this->mShowToc = $user->getOption( 'showtoc' );
3264 wfProfileOut( $fname );
3265 }
3266
3267
3268 }
3269
3270 /**
3271 * Callback function used by Parser::replaceLinkHolders()
3272 * to substitute link placeholders.
3273 */
3274 function &outputReplaceMatches( $matches ) {
3275 global $outputReplace;
3276 return $outputReplace[$matches[1]];
3277 }
3278
3279 /**
3280 * Return the total number of articles
3281 */
3282 function wfNumberOfArticles() {
3283 global $wgNumberOfArticles;
3284
3285 wfLoadSiteStats();
3286 return $wgNumberOfArticles;
3287 }
3288
3289 /**
3290 * Get various statistics from the database
3291 * @private
3292 */
3293 function wfLoadSiteStats() {
3294 global $wgNumberOfArticles, $wgTotalViews, $wgTotalEdits;
3295 $fname = 'wfLoadSiteStats';
3296
3297 if ( -1 != $wgNumberOfArticles ) return;
3298 $dbr =& wfGetDB( DB_SLAVE );
3299 $s = $dbr->selectRow( 'site_stats',
3300 array( 'ss_total_views', 'ss_total_edits', 'ss_good_articles' ),
3301 array( 'ss_row_id' => 1 ), $fname
3302 );
3303
3304 if ( $s === false ) {
3305 return;
3306 } else {
3307 $wgTotalViews = $s->ss_total_views;
3308 $wgTotalEdits = $s->ss_total_edits;
3309 $wgNumberOfArticles = $s->ss_good_articles;
3310 }
3311 }
3312
3313 function wfEscapeHTMLTagsOnly( $in ) {
3314 return str_replace(
3315 array( '"', '>', '<' ),
3316 array( '&quot;', '&gt;', '&lt;' ),
3317 $in );
3318 }
3319
3320 ?>
MediaWiki Core