2 rcs_id('$Id: InlineParser.php,v 1.73 2006-04-15 12:20:36 rurban Exp $');
3 /* Copyright (C) 2002 Geoffrey T. Dairiki <dairiki@dairiki.org>
4 * Copyright (C) 2004,2005 Reini Urban
6 * This file is part of PhpWiki.
8 * PhpWiki is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * PhpWiki is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with PhpWiki; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * This is the code which deals with the inline part of the (new-style)
27 * @author Geoffrey T. Dairiki
33 * This is the character used in wiki markup to escape characters with
36 define('ESCAPE_CHAR', '~');
38 require_once(dirname(__FILE__).'/HtmlElement.php');
39 require_once('lib/CachedMarkup.php');
40 require_once(dirname(__FILE__).'/stdlib.php');
43 function WikiEscape($text) {
44 return str_replace('#', ESCAPE_CHAR . '#', $text);
47 function UnWikiEscape($text) {
48 return preg_replace('/' . ESCAPE_CHAR . '(.)/', '\1', $text);
52 * Return type from RegexpSet::match and RegexpSet::nextMatch.
56 class RegexpSet_match {
58 * The text leading up the the next match.
66 * The text following the matched text.
70 * Index of the regular expression which matched.
76 * A set of regular expressions.
78 * This class is probably only useful for InlineTransformer.
84 * @param array $regexps A list of regular expressions. The
85 * regular expressions should not include any sub-pattern groups
86 * "(...)". (Anonymous groups, like "(?:...)", as well as
87 * look-ahead and look-behind assertions are okay.)
89 function RegexpSet ($regexps) {
91 $this->_regexps = array_unique($regexps);
92 if (!defined('_INLINE_OPTIMIZATION')) define('_INLINE_OPTIMIZATION',0);
96 * Search text for the next matching regexp from the Regexp Set.
98 * @param string $text The text to search.
100 * @return RegexpSet_match A RegexpSet_match object, or false if no match.
102 function match ($text) {
103 return $this->_match($text, $this->_regexps, '*?');
107 * Search for next matching regexp.
109 * Here, 'next' has two meanings:
111 * Match the next regexp(s) in the set, at the same position as the last match.
113 * If that fails, match the whole RegexpSet, starting after the position of the
116 * @param string $text Text to search.
118 * @param RegexpSet_match $prevMatch A RegexpSet_match object.
119 * $prevMatch should be a match object obtained by a previous
120 * match upon the same value of $text.
122 * @return RegexpSet_match A RegexpSet_match object, or false if no match.
124 function nextMatch ($text, $prevMatch) {
125 // Try to find match at same position.
126 $pos = strlen($prevMatch->prematch);
127 $regexps = array_slice($this->_regexps, $prevMatch->regexp_ind + 1);
129 $repeat = sprintf('{%d}', $pos);
130 if ( ($match = $this->_match($text, $regexps, $repeat)) ) {
131 $match->regexp_ind += $prevMatch->regexp_ind + 1;
137 // Failed. Look for match after current position.
138 $repeat = sprintf('{%d,}?', $pos + 1);
139 return $this->_match($text, $this->_regexps, $repeat);
142 // Syntax: http://www.pcre.org/pcre.txt
143 // x - EXTENDED, ignore whitespace
147 function _match ($text, $regexps, $repeat) {
148 // If one of the regexps is an empty string, php will crash here:
149 // sf.net: Fatal error: Allowed memory size of 8388608 bytes exhausted
150 // (tried to allocate 634 bytes)
151 if (_INLINE_OPTIMIZATION) { // disabled, wrong
152 // So we try to minize memory usage, by looping explicitly,
153 // and storing only those regexp which actually match.
154 // There may be more than one, so we have to find the longest,
155 // and match inside until the shortest is empty.
156 $matched = array(); $matched_ind = array();
157 for ($i=0; $i<count($regexps); $i++) {
158 if (!trim($regexps[$i])) {
159 trigger_error("empty regexp $i", E_USER_WARNING);
162 $pat= "/ ( . $repeat ) ( " . $regexps[$i] . " ) /x";
163 if (preg_match($pat, $text, $_m)) {
164 $m = $_m; // FIXME: prematch, postmatch is wrong
165 $matched[] = $regexps[$i];
170 // To overcome ANCHORED:
171 // We could sort by longest match and iterate over these.
172 if (empty($matched)) return false;
174 $match = new RegexpSet_match;
176 // Optimization: if the matches are only "$" and another, then omit "$"
177 if (! _INLINE_OPTIMIZATION or count($matched) > 2) {
178 assert(!empty($repeat));
179 assert(!empty($regexps));
180 for ($i=0; $i<count($regexps); $i++) {
181 if (!trim($regexps[$i])) {
182 trigger_error("empty regexp $i", E_USER_WARNING);
183 $regexps[$i] = '\Wxxxx\w\W\w\W\w\W\w\W\w\W\w'; // some placeholder
186 // We could do much better, if we would know the matching markup for the
187 // longest regexp match:
188 $hugepat= "/ ( . $repeat ) ( (" . join(')|(', $regexps) . ") ) /Asx";
189 // Proposed premature optimization 1:
190 //$hugepat= "/ ( . $repeat ) ( (" . join(')|(', array_values($matched)) . ") ) /Asx";
191 if (! preg_match($hugepat, $text, $m)) {
194 // Proposed premature optimization 1:
195 //$match->regexp_ind = $matched_ind[count($m) - 4];
196 $match->regexp_ind = count($m) - 4;
198 $match->regexp_ind = $regexp_ind;
201 $match->postmatch = substr($text, strlen($m[0]));
202 $match->prematch = $m[1];
203 $match->match = $m[2];
208 var_dump($regexps); var_dump($matched); var_dump($matched_inc);
209 PrintXML(HTML::dl(HTML::dt("input"),
210 HTML::dd(HTML::pre($text)),
212 HTML::dd(HTML::pre($match->regexp_ind, ":", $regexps[$match->regexp_ind])),
213 HTML::dt("prematch"),
214 HTML::dd(HTML::pre($match->prematch)),
216 HTML::dd(HTML::pre($match->match)),
217 HTML::dt("postmatch"),
218 HTML::dd(HTML::pre($match->postmatch))
229 * A simple markup rule (i.e. terminal token).
231 * These are defined by a regexp.
233 * When a match is found for the regexp, the matching text is replaced.
234 * The replacement content is obtained by calling the SimpleMarkup::markup method.
242 * @return string Regexp which matches this token.
244 function getMatchRegexp () {
245 return $this->_match_regexp;
248 /** Markup matching text.
250 * @param string $match The text which matched the regexp
251 * (obtained from getMatchRegexp).
253 * @return mixed The expansion of the matched text.
255 function markup ($match /*, $body */) {
256 trigger_error("pure virtual", E_USER_ERROR);
261 * A balanced markup rule.
263 * These are defined by a start regexp, and an end regexp.
269 /** Get the starting regexp for this rule.
271 * @return string The starting regexp.
273 function getStartRegexp () {
274 return $this->_start_regexp;
277 /** Get the ending regexp for this rule.
279 * @param string $match The text which matched the starting regexp.
281 * @return string The ending regexp.
283 function getEndRegexp ($match) {
284 return $this->_end_regexp;
287 /** Get expansion for matching input.
289 * @param string $match The text which matched the starting regexp.
291 * @param mixed $body Transformed text found between the starting
292 * and ending regexps.
294 * @return mixed The expansion of the matched text.
296 function markup ($match, $body) {
297 trigger_error("pure virtual", E_USER_ERROR);
301 class Markup_escape extends SimpleMarkup
303 function getMatchRegexp () {
304 return ESCAPE_CHAR . '(?: [[:alnum:]]+ | .)';
307 function markup ($match) {
308 assert(strlen($match) >= 2);
309 return substr($match, 1);
314 * [image.jpg size=50% border=5], [image.jpg size=50x30]
315 * Support for the following attributes: see stdlib.php:LinkImage()
316 * size=<precent>%, size=<width>x<height>
317 * border=n, align=\w+, hspace=n, vspace=n
319 function isImageLink($link) {
320 if (!$link) return false;
321 assert(defined('INLINE_IMAGES'));
322 return preg_match("/\\.(" . INLINE_IMAGES . ")$/i", $link)
323 or preg_match("/\\.(" . INLINE_IMAGES . ")\s+(size|border|align|hspace|vspace)=/i", $link);
326 function LinkBracketLink($bracketlink) {
328 // $bracketlink will start and end with brackets; in between will
329 // be either a page name, a URL or both separated by a pipe.
331 // strip brackets and leading space
332 // FIXME: \n inside [] will lead to errors
333 preg_match('/(\#?) \[\s* (?: (.*?) \s* (?<!' . ESCAPE_CHAR . ')(\|) )? \s* (.+?) \s*\]/x',
334 $bracketlink, $matches);
335 if (count($matches) < 4) {
336 trigger_error(_("Invalid [] syntax ignored").": ".$bracketlink, E_USER_WARNING);
337 return new Cached_Link;
339 list (, $hash, $label, $bar, $rawlink) = $matches;
341 $label = UnWikiEscape($label);
343 * Check if the user has typed a explicit URL. This solves the
344 * problem where the URLs have a ~ character, which would be stripped away.
345 * "[http:/server/~name/]" will work as expected
346 * "http:/server/~name/" will NOT work as expected, will remove the ~
348 if (strstr($rawlink, "http://") or strstr($rawlink, "https://")) {
350 // Mozilla Browser URI Obfuscation Weakness 2004-06-14
351 // http://www.securityfocus.com/bid/10532/
352 // goodurl+"%2F%20%20%20."+badurl
353 if (preg_match("/%2F(%20)+\./i", $rawlink)) {
354 $rawlink = preg_replace("/%2F(%20)+\./i","%2F.",$rawlink);
357 $link = UnWikiEscape($rawlink);
359 /* Relatives links by Joel Schaubert.
360 * Recognize [../bla] or [/bla] as relative links, without needing http://
361 * but {/link] only if SUBPAG_SEPERATOR is not /
363 if (SUBPAGE_SEPARATOR == '/') {
364 if (preg_match('/^\.\.\//', $link)) {
365 return new Cached_ExternalLink($link, $label);
367 } else if (preg_match('/^(\.\.\/|\/)/', $link)) {
368 return new Cached_ExternalLink($link, $label);
371 // if label looks like a url to an image, we want an image link.
372 if (isImageLink($label)) {
374 $intermap = getInterwikiMap();
375 if (preg_match("/^" . $intermap->getRegexp() . ":/", $label)) {
376 $imgurl = $intermap->link($label);
377 $imgurl = $imgurl->getAttr('href');
378 } elseif (! preg_match("#^(" . ALLOWED_PROTOCOLS . "):#", $imgurl)) {
379 // local theme linkname like 'images/next.gif'.
381 $imgurl = $WikiTheme->getImageURL($imgurl);
383 $label = LinkImage($imgurl, $link);
387 // It's an anchor, not a link...
388 $id = MangleXmlIdentifier($link);
389 return HTML::a(array('name' => $id, 'id' => $id),
390 $bar ? $label : $link);
393 if (preg_match("#^(" . ALLOWED_PROTOCOLS . "):#", $link)) {
394 // if it's an image, embed it; otherwise, it's a regular link
395 if (isImageLink($link))
396 return LinkImage($link, $label);
398 return new Cached_ExternalLink($link, $label);
400 elseif (preg_match("/^phpwiki:/", $link))
401 return new Cached_PhpwikiURL($link, $label);
402 /* Semantic relations and attributes */
403 elseif (preg_match("/:[:-]/", $link) and !isImageLink($link))
404 return new Cached_SemanticLink($link, $label);
406 * Inline images in Interwiki urls's:
407 * [File:my_image.gif] inlines the image,
408 * File:my_image.gif shows a plain inter-wiki link,
409 * [what a pic|File:my_image.gif] shows a named inter-wiki link to the gif
410 * [File:my_image.gif|what a pic] shows a inlimed image linked to the page "what a pic"
412 * Note that for simplicity we will accept embedded object tags (non-images)
413 * here also, and seperate them later in LinkImage()
415 elseif (strstr($link,':')
416 and ($intermap = getInterwikiMap())
417 and preg_match("/^" . $intermap->getRegexp() . ":/", $link))
419 // trigger_error("label: $label link: $link", E_USER_WARNING);
420 if (empty($label) and isImageLink($link)) {
421 // if without label => inlined image [File:xx.gif]
422 $imgurl = $intermap->link($link);
423 return LinkImage($imgurl->getAttr('href'), $label);
425 return new Cached_InterwikiLink($link, $label);
427 // Split anchor off end of pagename.
428 if (preg_match('/\A(.*)(?<!'.ESCAPE_CHAR.')#(.*?)\Z/', $rawlink, $m)) {
429 list(,$rawlink,$anchor) = $m;
430 $pagename = UnWikiEscape($rawlink);
431 $anchor = UnWikiEscape($anchor);
439 return new Cached_WikiLink($pagename, $label, $anchor);
443 class Markup_bracketlink extends SimpleMarkup
445 var $_match_regexp = "\\#? \\[ .*? [^]\\s] .*? \\]";
447 function markup ($match) {
448 $link = LinkBracketLink($match);
449 assert($link->isInlineElement());
454 class Markup_url extends SimpleMarkup
456 function getMatchRegexp () {
457 return "(?<![[:alnum:]]) (?:" . ALLOWED_PROTOCOLS . ") : [^\s<>\"']+ (?<![ ,.?; \] \) ])";
460 function markup ($match) {
461 return new Cached_ExternalLink(UnWikiEscape($match));
466 class Markup_interwiki extends SimpleMarkup
468 function getMatchRegexp () {
470 $map = getInterwikiMap();
471 return "(?<! [[:alnum:]])" . $map->getRegexp(). ": \S+ (?<![ ,.?;! \] \) \" \' ])";
474 function markup ($match) {
475 //$map = getInterwikiMap();
476 return new Cached_InterwikiLink(UnWikiEscape($match));
480 class Markup_wikiword extends SimpleMarkup
482 function getMatchRegexp () {
483 global $WikiNameRegexp;
484 if (!trim($WikiNameRegexp)) return " " . WIKI_NAME_REGEXP;
485 return " $WikiNameRegexp";
488 function markup ($match) {
489 if (!$match) return false;
490 if ($this->_isWikiUserPage($match))
491 return new Cached_UserLink($match); //$this->_UserLink($match);
493 return new Cached_WikiLink($match);
496 // FIXME: there's probably a more useful place to put these two functions
497 function _isWikiUserPage ($page) {
499 $dbi = $request->getDbh();
500 $page_handle = $dbi->getPage($page);
501 if ($page_handle and $page_handle->get('pref'))
507 function _UserLink($PageName) {
508 $link = HTML::a(array('href' => $PageName));
509 $link->pushContent(PossiblyGlueIconToText('wikiuser', $PageName));
510 $link->setAttr('class', 'wikiuser');
515 class Markup_linebreak extends SimpleMarkup
517 //var $_match_regexp = "(?: (?<! %) %%% (?! %) | <(?:br|BR)> | <(?:br|BR) \/> )";
518 var $_match_regexp = "(?: (?<! %) %%% (?! %) | <(?:br|BR)> )";
520 function markup ($match) {
525 class Markup_old_emphasis extends BalancedMarkup
527 var $_start_regexp = "''|__";
529 function getEndRegexp ($match) {
533 function markup ($match, $body) {
534 $tag = $match == "''" ? 'em' : 'strong';
535 return new HtmlElement($tag, $body);
539 class Markup_nestled_emphasis extends BalancedMarkup
541 function getStartRegexp() {
542 static $start_regexp = false;
544 if (!$start_regexp) {
545 // The three possible delimiters
546 // (none of which can be followed by itself.)
551 $any = "(?: ${i}|${b}|${tt})"; // any of the three.
553 // Any of [_*=] is okay if preceded by space or one of [-"'/:]
554 $start[] = "(?<= \\s|^|[-\"'\\/:]) ${any}";
556 // _ or * is okay after = as long as not immediately followed by =
557 $start[] = "(?<= =) (?: ${i}|${b}) (?! =)";
559 $start[] = "(?<= _) (?: ${b}|${tt}) (?! _)";
560 $start[] = "(?<= \\*) (?: ${i}|${tt}) (?! \\*)";
563 // any delimiter okay after an opening brace ( [{<(] )
564 // as long as it's not immediately followed by the matching closing
566 $start[] = "(?<= { ) ${any} (?! } )";
567 $start[] = "(?<= < ) ${any} (?! > )";
568 $start[] = "(?<= \\( ) ${any} (?! \\) )";
570 $start = "(?:" . join('|', $start) . ")";
572 // Any of the above must be immediately followed by non-whitespace.
573 $start_regexp = $start . "(?= \S)";
576 return $start_regexp;
579 function getEndRegexp ($match) {
580 $chr = preg_quote($match);
581 return "(?<= \S | ^ ) (?<! $chr) $chr (?! $chr) (?= \s | [-)}>\"'\\/:.,;!? _*=] | $)";
584 function markup ($match, $body) {
586 case '*': return new HtmlElement('b', $body);
587 case '=': return new HtmlElement('tt', $body);
588 case '_': return new HtmlElement('i', $body);
593 class Markup_html_emphasis extends BalancedMarkup
596 "<(?: b|big|i|small|tt|em|strong|cite|code|dfn|kbd|samp|var|sup|sub )>";
598 function getEndRegexp ($match) {
599 return "<\\/" . substr($match, 1);
602 function markup ($match, $body) {
603 $tag = substr($match, 1, -1);
604 return new HtmlElement($tag, $body);
608 class Markup_html_abbr extends BalancedMarkup
610 //rurban: abbr|acronym need an optional title tag.
612 var $_start_regexp = "<(?: abbr|acronym )(?: \stitle=[^>]*)?>";
614 function getEndRegexp ($match) {
615 if (substr($match,1,4) == 'abbr')
619 return "<\\/" . $tag . '>';
622 function markup ($match, $body) {
623 if (substr($match,1,4) == 'abbr')
627 $rest = substr($match,1+strlen($tag),-1);
629 list($key,$val) = explode("=",$rest);
630 $args = array($key => $val);
631 } else $args = array();
632 return new HtmlElement($tag, $args, $body);
636 /** ENABLE_MARKUP_COLOR
637 * See http://www.pmwiki.org/wiki/PmWiki/WikiStyles and
638 * http://www.flexwiki.com/default.aspx/FlexWiki/FormattingRules.html
640 class Markup_color extends BalancedMarkup {
641 // %color=blue% blue text %% and back to normal
642 var $_start_regexp = "%color=(?: [^%]*)%";
643 var $_end_regexp = "%%";
645 function markup ($match, $body) {
646 $color = substr($match, 7, -1);
647 if (strlen($color) != 7
648 and in_array($color, array('red', 'blue', 'grey', 'black'))) {
650 return new HtmlElement('font', array('color' => $color), $body);
651 } elseif ((substr($color,0,1) == '#')
652 and (strspn(substr($color,1),'0123456789ABCDEFabcdef') == strlen($color)-1)) {
653 return new HtmlElement('font', array('color' => $color), $body);
655 trigger_error(sprintf(_("unknown color %s ignored"), $color), E_USER_WARNING);
661 // Special version for single-line plugins formatting,
662 // like: '<small>< ?plugin PopularNearby ? ></small>'
663 class Markup_plugin extends SimpleMarkup
665 var $_match_regexp = '<\?plugin(?:-form)?\s[^\n]+?\?>';
667 function markup ($match) {
668 //$xml = new Cached_PluginInvocation($match);
669 //$xml->setTightness(true,true);
670 return new Cached_PluginInvocation($match);
674 /** ENABLE_MARKUP_TEMPLATE
675 * Template syntax similar to mediawiki
677 * => <?plugin Template page=template?>
678 * {{template|var=value|...}}
679 * => <?plugin Template page=template vars="var=value&..."?>
681 class Markup_template_plugin extends SimpleMarkup
683 var $_match_regexp = '\{\{\w[^\n]+\}\}';
685 function markup ($match) {
686 $page = substr($match,2,-2); $vars = '';
687 if (preg_match('/^(\S+)\|(.*)$/', $page, $_m)) {
689 $vars = str_replace('|', '&', $_m[2]);
692 $s = '<?plugin Template page=' . $page . ' vars="' . $vars . '"?>';
694 $s = '<?plugin Template page=' . $page . '?>';
695 return new Cached_PluginInvocation($s);
699 // TODO: "..." => "…" browser specific display (not cached?)
700 // TODO: "--" => "&emdash;" browser specific display (not cached?)
701 // TODO: Support more HTML::Entities: (C) for copy, --- for mdash, -- for ndash
703 class Markup_html_entities extends SimpleMarkup {
704 var $_match_regexp = '(: \.\.\.|\-\-|\-\-\-|\(C\) )';
706 function markup ($match) {
707 static $entities = array('...' => '…',
712 return HTML::Raw($entities[$match]);
716 class Markup_isonumchars extends SimpleMarkup {
717 var $_match_regexp = '\&\#\d{2,5};';
719 function markup ($match) {
720 return HTML::Raw($match);
724 class Markup_isohexchars extends SimpleMarkup {
725 // hexnums, like ¤ <=> ¤
726 var $_match_regexp = '\&\#x[0-9a-fA-F]{2,4};';
728 function markup ($match) {
729 return HTML::Raw($match);
733 // FIXME: Do away with magic phpwiki forms. (Maybe phpwiki: links too?)
734 // FIXME: Do away with plugin-links. They seem not to be used.
737 class InlineTransformer
739 var $_regexps = array();
740 var $_markup = array();
742 function InlineTransformer ($markup_types = false) {
743 if (!$markup_types) {
744 $non_default = false;
745 $markup_types = array('escape', 'bracketlink', 'url',
746 'interwiki', 'wikiword', 'linebreak',
747 'old_emphasis', 'nestled_emphasis',
748 'html_emphasis', 'html_abbr', 'plugin',
749 'isonumchars', 'isohexchars', /*'html_entities',*/
753 foreach ($markup_types as $mtype) {
754 $class = "Markup_$mtype";
755 $this->_addMarkup(new $class);
757 if (ENABLE_MARKUP_COLOR and !$non_default)
758 $this->_addMarkup(new Markup_color);
759 if (ENABLE_MARKUP_TEMPLATE and !$non_default)
760 $this->_addMarkup(new Markup_template_plugin);
763 function _addMarkup ($markup) {
764 if (isa($markup, 'SimpleMarkup'))
765 $regexp = $markup->getMatchRegexp();
767 $regexp = $markup->getStartRegexp();
769 assert(!isset($this->_markup[$regexp]));
770 $this->_regexps[] = $regexp;
771 $this->_markup[] = $markup;
774 function parse (&$text, $end_regexps = array('$')) {
775 $regexps = $this->_regexps;
777 // $end_re takes precedence: "favor reduce over shift"
778 array_unshift($regexps, $end_regexps[0]);
779 //array_push($regexps, $end_regexps[0]);
780 $regexps = new RegexpSet($regexps);
783 $output = new XmlContent;
785 $match = $regexps->match($input);
788 if ($match->regexp_ind == 0) {
789 // No start pattern found before end pattern.
791 if (isset($markup) and is_object($markup) and isa($markup,'Markup_plugin')) {
792 $current =& $output->_content[count($output->_content)-1];
793 $current->setTightness(true,true);
795 $output->pushContent($match->prematch);
796 $text = $match->postmatch;
800 $markup = $this->_markup[$match->regexp_ind - 1];
801 $body = $this->_parse_markup_body($markup, $match->match, $match->postmatch, $end_regexps);
803 // Couldn't match balanced expression.
804 // Ignore and look for next matching start regexp.
805 $match = $regexps->nextMatch($input, $match);
809 // Matched markup. Eat input, push output.
810 // FIXME: combine adjacent strings.
811 if (isa($markup, 'SimpleMarkup'))
812 $current = $markup->markup($match->match);
814 $current = $markup->markup($match->match, $body);
815 $input = $match->postmatch;
816 if (isset($markup) and is_object($markup) and isa($markup,'Markup_plugin')) {
817 $current->setTightness(true,true);
819 $output->pushContent($match->prematch, $current);
821 $match = $regexps->match($input);
824 // No pattern matched, not even the end pattern.
829 function _parse_markup_body ($markup, $match, &$text, $end_regexps) {
830 if (isa($markup, 'SimpleMarkup'))
831 return true; // Done. SimpleMarkup is simple.
833 if (!is_object($markup)) return false; // Some error: Should assert
834 array_unshift($end_regexps, $markup->getEndRegexp($match));
836 // Optimization: if no end pattern in text, we know the
837 // parse will fail. This is an important optimization,
838 // e.g. when text is "*lots *of *start *delims *with
839 // *no *matching *end *delims".
840 $ends_pat = "/(?:" . join(").*(?:", $end_regexps) . ")/xs";
841 if (!preg_match($ends_pat, $text))
843 return $this->parse($text, $end_regexps);
847 class LinkTransformer extends InlineTransformer
849 function LinkTransformer () {
850 $this->InlineTransformer(array('escape', 'bracketlink', 'url',
851 'interwiki', 'wikiword'));
855 function TransformInline($text, $markup = 2.0, $basepage=false) {
859 $trfm = new InlineTransformer;
863 $text = ConvertOldMarkup($text, 'inline');
867 return new CacheableMarkup($trfm->parse($text), $basepage);
869 return $trfm->parse($text);
872 function TransformLinks($text, $markup = 2.0, $basepage = false) {
876 $trfm = new LinkTransformer;
880 $text = ConvertOldMarkup($text, 'links');
884 return new CacheableMarkup($trfm->parse($text), $basepage);
886 return $trfm->parse($text);
889 // $Log: not supported by cvs2svn $
890 // Revision 1.72 2006/03/07 20:43:29 rurban
891 // relative external link, if no internal subpage. by joel Schaubert
893 // Revision 1.71 2005/11/14 22:31:12 rurban
894 // add SemanticWeb support
896 // Revision 1.70 2005/10/31 16:45:23 rurban
897 // added cfg-able markups only for default TextTransformation, not for links and others
899 // Revision 1.69 2005/09/14 05:57:19 rurban
900 // make ENABLE_MARKUP_TEMPLATE optional
902 // Revision 1.68 2005/09/10 21:24:32 rurban
903 // optionally support {{Template|vars}} syntax
905 // Revision 1.67 2005/06/06 17:41:20 rurban
906 // support new ENABLE_MARKUP_COLOR
908 // Revision 1.66 2005/04/23 11:15:49 rurban
909 // handle allowed inlined objects within INLINE_IMAGES
911 // Revision 1.65 2005/03/27 18:24:17 rurban
915 // (c-file-style: "gnu")
920 // c-hanging-comment-ender-p: nil
921 // indent-tabs-mode: nil