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