1 <?php rcs_id('$Id: BlockParser.php,v 1.58 2006-11-19 13:57:14 rurban Exp $');
2 /* Copyright (C) 2002 Geoffrey T. Dairiki <dairiki@dairiki.org>
3 * Copyright (C) 2004,2005 Reini Urban
5 * This file is part of PhpWiki.
7 * PhpWiki is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * PhpWiki is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with PhpWiki; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 require_once('lib/HtmlElement.php');
22 require_once('lib/CachedMarkup.php');
23 require_once('lib/InlineParser.php');
25 ////////////////////////////////////////////////////////////////
30 * Deal with paragraphs and proper, recursive block indents
31 * for the new style markup (version 2)
33 * Everything which goes over more than line:
34 * automatic lists, UL, OL, DL, table, blockquote, verbatim,
40 * FIXME: unify this with the RegexpSet in InlineParser.
42 * FIXME: This is very php5 sensitive: It was fixed for 1.3.9,
43 * but is again broken with the 1.3.11
44 * allow_call_time_pass_reference clean fixes
47 * @author: Geoffrey T. Dairiki
51 * Return type from RegexpSet::match and RegexpSet::nextMatch.
55 class AnchoredRegexpSet_match {
62 * The text following the matched text.
67 * Index of the regular expression which matched.
73 * A set of regular expressions.
75 * This class is probably only useful for InlineTransformer.
77 class AnchoredRegexpSet
81 * @param $regexps array A list of regular expressions. The
82 * regular expressions should not include any sub-pattern groups
83 * "(...)". (Anonymous groups, like "(?:...)", as well as
84 * look-ahead and look-behind assertions are fine.)
86 function AnchoredRegexpSet ($regexps) {
87 $this->_regexps = $regexps;
88 $this->_re = "/((" . join(")|(", $regexps) . "))/Ax";
92 * Search text for the next matching regexp from the Regexp Set.
94 * @param $text string The text to search.
96 * @return object A RegexpSet_match object, or false if no match.
98 function match ($text) {
99 if (!is_string($text)) return false;
100 if (! preg_match($this->_re, $text, $m)) {
104 $match = new AnchoredRegexpSet_match;
105 $match->postmatch = substr($text, strlen($m[0]));
106 $match->match = $m[1];
107 $match->regexp_ind = count($m) - 3;
112 * Search for next matching regexp.
114 * Here, 'next' has two meanings:
116 * Match the next regexp(s) in the set, at the same position as the last match.
118 * If that fails, match the whole RegexpSet, starting after the position of the
121 * @param $text string Text to search.
123 * @param $prevMatch A RegexpSet_match object
125 * $prevMatch should be a match object obtained by a previous
126 * match upon the same value of $text.
128 * @return object A RegexpSet_match object, or false if no match.
130 function nextMatch ($text, $prevMatch) {
131 // Try to find match at same position.
132 $regexps = array_slice($this->_regexps, $prevMatch->regexp_ind + 1);
137 $pat= "/ ( (" . join(')|(', $regexps) . ") ) /Axs";
139 if (! preg_match($pat, $text, $m)) {
143 $match = new AnchoredRegexpSet_match;
144 $match->postmatch = substr($text, strlen($m[0]));
145 $match->match = $m[1];
146 $match->regexp_ind = count($m) - 3 + $prevMatch->regexp_ind + 1;;
153 class BlockParser_Input {
155 function BlockParser_Input ($text) {
157 // Expand leading tabs.
158 // FIXME: do this better.
160 // We want to ensure the only characters matching \s are ' ' and "\n".
162 $text = preg_replace('/(?![ \n])\s/', ' ', $text);
163 assert(!preg_match('/(?![ \n])\s/', $text));
165 $this->_lines = preg_split('/[^\S\n]*\n/', $text);
168 // Strip leading blank lines.
169 while ($this->_lines and ! $this->_lines[0])
170 array_shift($this->_lines);
171 $this->_atSpace = false;
174 function skipSpace () {
175 $nlines = count($this->_lines);
177 if ($this->_pos >= $nlines) {
178 $this->_atSpace = false;
181 if ($this->_lines[$this->_pos] != '')
184 $this->_atSpace = true;
186 return $this->_atSpace;
189 function currentLine () {
190 if ($this->_pos >= count($this->_lines)) {
193 return $this->_lines[$this->_pos];
196 function nextLine () {
197 $this->_atSpace = $this->_lines[$this->_pos++] === '';
198 if ($this->_pos >= count($this->_lines)) {
201 return $this->_lines[$this->_pos];
204 function advance () {
205 $this->_atSpace = ($this->_lines[$this->_pos] === '');
210 return array($this->_pos, $this->_atSpace);
213 function setPos ($pos) {
214 list($this->_pos, $this->_atSpace) = $pos;
217 function getPrefix () {
221 function getDepth () {
226 if ($this->_pos < count($this->_lines))
227 return $this->_lines[$this->_pos];
232 function _debug ($tab, $msg) {
234 $where = $this->where();
235 $tab = str_repeat('____', $this->getDepth() ) . $tab;
236 printXML(HTML::div("$tab $msg: at: '",
243 class BlockParser_InputSubBlock extends BlockParser_Input
245 function BlockParser_InputSubBlock (&$input, $prefix_re, $initial_prefix = false) {
246 $this->_input = &$input;
247 $this->_prefix_pat = "/$prefix_re|\\s*\$/Ax";
248 $this->_atSpace = false;
250 if (($line = $input->currentLine()) === false)
251 $this->_line = false;
252 elseif ($initial_prefix) {
253 assert(substr($line, 0, strlen($initial_prefix)) == $initial_prefix);
254 $this->_line = (string) substr($line, strlen($initial_prefix));
255 $this->_atBlank = ! ltrim($line);
257 elseif (preg_match($this->_prefix_pat, $line, $m)) {
258 $this->_line = (string) substr($line, strlen($m[0]));
259 $this->_atBlank = ! ltrim($line);
262 $this->_line = false;
265 function skipSpace () {
266 // In contrast to the case for top-level blocks,
267 // for sub-blocks, there never appears to be any trailing space.
268 // (The last block in the sub-block should always be of class tight-bottom.)
269 while ($this->_line === '')
272 if ($this->_line === false)
273 return $this->_atSpace == 'strong_space';
275 return $this->_atSpace;
278 function currentLine () {
282 function nextLine () {
283 if ($this->_line === '')
284 $this->_atSpace = $this->_atBlank ? 'weak_space' : 'strong_space';
286 $this->_atSpace = false;
288 $line = $this->_input->nextLine();
289 if ($line !== false && preg_match($this->_prefix_pat, $line, $m)) {
290 $this->_line = (string) substr($line, strlen($m[0]));
291 $this->_atBlank = ! ltrim($line);
294 $this->_line = false;
299 function advance () {
304 return array($this->_line, $this->_atSpace, $this->_input->getPos());
307 function setPos ($pos) {
308 $this->_line = $pos[0];
309 $this->_atSpace = $pos[1];
310 $this->_input->setPos($pos[2]);
313 function getPrefix () {
314 assert ($this->_line !== false);
315 $line = $this->_input->currentLine();
316 assert ($line !== false && strlen($line) >= strlen($this->_line));
317 return substr($line, 0, strlen($line) - strlen($this->_line));
320 function getDepth () {
321 return $this->_input->getDepth() + 1;
325 return $this->_input->where();
330 class Block_HtmlElement extends HtmlElement
332 function Block_HtmlElement($tag /*, ... */) {
333 $this->_init(func_get_args());
336 function setTightness($top, $bottom) {
337 $this->setInClass('tightenable');
338 $this->setInClass('top', $top);
339 $this->setInClass('bottom', $bottom);
343 class ParsedBlock extends Block_HtmlElement {
345 function ParsedBlock (&$input, $tag = 'div', $attr = false) {
346 $this->Block_HtmlElement($tag, $attr);
347 $this->_initBlockTypes();
348 $this->_parse($input);
351 function _parse (&$input) {
352 // php5 failed to advance the block. php5 copies objects by ref.
353 // nextBlock == block, both are the same objects. So we have to clone it.
354 for ($block = $this->_getBlock($input);
356 $block = (is_object($nextBlock) ? clone($nextBlock) : $nextBlock))
358 while ($nextBlock = $this->_getBlock($input)) {
359 // Attempt to merge current with following block.
360 if (! ($merged = $block->merge($nextBlock)) ) {
361 break; // can't merge
365 $this->pushContent($block->finish());
369 // FIXME: hackish. This should only be called once.
370 function _initBlockTypes () {
371 // better static or global?
372 static $_regexpset, $_block_types;
374 if (!is_object($_regexpset)) {
376 ('oldlists', 'list', 'dl', 'table_dl',
377 'blockquote', 'heading', 'hr', 'pre', 'email_blockquote',
379 if (ENABLE_MARKUP_DIVSPAN)
380 $Block_types[] = 'divspan';
381 foreach ($Block_types as $type) {
382 $class = "Block_$type";
384 $this->_block_types[] = $proto;
385 $this->_regexps[] = $proto->_re;
387 $this->_regexpset = new AnchoredRegexpSet($this->_regexps);
388 $_regexpset = $this->_regexpset;
389 $_block_types = $this->_block_types;
392 $this->_regexpset = $_regexpset;
393 $this->_block_types = $_block_types;
397 function _getBlock (&$input) {
398 $this->_atSpace = $input->skipSpace();
400 $line = $input->currentLine();
401 if ($line === false or $line === '') { // allow $line === '0'
404 $tight_top = !$this->_atSpace;
405 $re_set = &$this->_regexpset;
406 //FIXME: php5 fails to advance here!
407 for ($m = $re_set->match($line); $m; $m = $re_set->nextMatch($line, $m)) {
408 $block = clone($this->_block_types[$m->regexp_ind]);
409 if (DEBUG & _DEBUG_PARSER)
410 $input->_debug('>', get_class($block));
412 if ($block->_match($input, $m)) {
413 //$block->_text = $line;
414 if (DEBUG & _DEBUG_PARSER)
415 $input->_debug('<', get_class($block));
416 $tight_bottom = ! $input->skipSpace();
417 $block->_setTightness($tight_top, $tight_bottom);
420 if (DEBUG & _DEBUG_PARSER)
421 $input->_debug('[', "_match failed");
423 if ($line === false or $line === '') // allow $line === '0'
426 trigger_error("Couldn't match block: '$line'", E_USER_NOTICE);
431 class WikiText extends ParsedBlock {
432 function WikiText ($text) {
433 $input = new BlockParser_Input($text);
434 $this->ParsedBlock($input);
438 class SubBlock extends ParsedBlock {
439 function SubBlock (&$input, $indent_re, $initial_indent = false,
440 $tag = 'div', $attr = false) {
441 $subinput = new BlockParser_InputSubBlock($input, $indent_re, $initial_indent);
442 $this->ParsedBlock($subinput, $tag, $attr);
447 * TightSubBlock is for use in parsing lists item bodies.
449 * If the sub-block consists of a single paragraph, it omits
450 * the paragraph element.
452 * We go to this trouble so that "tight" lists look somewhat reasonable
453 * in older (non-CSS) browsers. (If you don't do this, then, without
454 * CSS, you only get "loose" lists.
456 class TightSubBlock extends SubBlock {
457 function TightSubBlock (&$input, $indent_re, $initial_indent = false,
458 $tag = 'div', $attr = false) {
459 $this->SubBlock($input, $indent_re, $initial_indent, $tag, $attr);
461 // If content is a single paragraph, eliminate the paragraph...
462 if (count($this->_content) == 1) {
463 $elem = $this->_content[0];
464 if (isa($elem, 'XmlElement') and $elem->getTag() == 'p') {
465 assert($elem->getAttr('class') == 'tightenable top bottom');
466 $this->setContent($elem->getContent());
475 function _match (&$input, $match) {
476 trigger_error('pure virtual', E_USER_ERROR);
479 function _setTightness ($top, $bot) {
480 $this->_element->setTightness($top, $bot);
483 function merge ($followingBlock) {
488 return $this->_element;
492 class Block_blockquote extends BlockMarkup
495 var $_re = '\ +(?=\S)';
497 function _match (&$input, $m) {
498 $this->_depth = strlen($m->match);
499 $indent = sprintf("\\ {%d}", $this->_depth);
500 $this->_element = new SubBlock($input, $indent, $m->match,
505 function merge ($nextBlock) {
506 if (get_class($nextBlock) == get_class($this)) {
507 assert ($nextBlock->_depth < $this->_depth);
508 $nextBlock->_element->unshiftContent($this->_element);
509 $nextBlock->_tight_top = $this->_tight_top;
516 class Block_list extends BlockMarkup
518 //var $_tag = 'ol' or 'ul';
524 | [*] (?!(?=\S)[^*]*(?<=\S)[*](?:\\s|[-)}>"\'\\/:.,;!?_*=]) )
526 var $_content = array();
528 function _match (&$input, $m) {
529 // A list as the first content in a list is not allowed.
532 // Should markup as <ul><li>* Item</li></ul>,
533 // not <ul><li><ul><li>Item</li></ul>/li></ul>.
535 if (preg_match('/[*#+-o]/', $input->getPrefix())) {
540 $indent = sprintf("\\ {%d}", strlen($prefix));
542 $bullet = trim($m->match);
543 $this->_tag = $bullet == '#' ? 'ol' : 'ul';
544 $this->_content[] = new TightSubBlock($input, $indent, $m->match, 'li');
548 function _setTightness($top, $bot) {
549 $li = &$this->_content[0];
550 $li->setTightness($top, $bot);
553 function merge ($nextBlock) {
554 if (isa($nextBlock, 'Block_list') and $this->_tag == $nextBlock->_tag) {
555 if ($nextBlock->_content === $this->_content) {
556 trigger_error("Internal Error: no block advance", E_USER_NOTICE);
559 array_splice($this->_content, count($this->_content), 0,
560 $nextBlock->_content);
567 return new Block_HtmlElement($this->_tag, false, $this->_content);
571 class Block_dl extends Block_list
575 function Block_dl () {
576 $this->_re = '\ {0,4}\S.*(?<!'.ESCAPE_CHAR.'):\s*$';
579 function _match (&$input, $m) {
580 if (!($p = $this->_do_match($input, $m)))
582 list ($term, $defn, $loose) = $p;
584 $this->_content[] = new Block_HtmlElement('dt', false, $term);
585 $this->_content[] = $defn;
586 $this->_tight_defn = !$loose;
590 function _setTightness($top, $bot) {
591 $dt = &$this->_content[0];
592 $dd = &$this->_content[1];
594 $dt->setTightness($top, $this->_tight_defn);
595 $dd->setTightness($this->_tight_defn, $bot);
598 function _do_match (&$input, $m) {
599 $pos = $input->getPos();
601 $firstIndent = strspn($m->match, ' ');
602 $pat = sprintf('/\ {%d,%d}(?=\s*\S)/A', $firstIndent + 1, $firstIndent + 5);
605 $loose = $input->skipSpace();
606 $line = $input->currentLine();
608 if (!$line || !preg_match($pat, $line, $mm)) {
609 $input->setPos($pos);
610 return false; // No body found.
613 $indent = strlen($mm[0]);
614 $term = TransformInline(rtrim(substr(trim($m->match),0,-1)));
615 $defn = new TightSubBlock($input, sprintf("\\ {%d}", $indent), false, 'dd');
616 return array($term, $defn, $loose);
622 class Block_table_dl_defn extends XmlContent
627 function Block_table_dl_defn ($term, $defn) {
629 if (!is_array($defn))
630 $defn = $defn->getContent();
632 $this->_next_tight_top = false; // value irrelevant - gets fixed later
633 $this->_ncols = $this->_ComputeNcols($defn);
636 foreach ($defn as $item) {
637 if ($this->_IsASubtable($item))
638 $this->_addSubtable($item);
640 $this->_addToRow($item);
644 $th = HTML::th($term);
645 if ($this->_nrows > 1)
646 $th->setAttr('rowspan', $this->_nrows);
647 $this->_setTerm($th);
650 function setTightness($tight_top, $tight_bot) {
651 $this->_tight_top = $tight_top;
652 $this->_tight_bot = $tight_bot;
653 $first = &$this->firstTR();
654 $last = &$this->lastTR();
655 $first->setInClass('top', $tight_top);
657 $last->setInClass('bottom', $tight_bot);
659 trigger_error(sprintf("no lastTR: %s",AsXML($this->_content[0])), E_USER_WARNING);
663 function _addToRow ($item) {
664 if (empty($this->_accum)) {
665 $this->_accum = HTML::td();
666 if ($this->_ncols > 2)
667 $this->_accum->setAttr('colspan', $this->_ncols - 1);
669 $this->_accum->pushContent($item);
672 function _flushRow ($tight_bottom=false) {
673 if (!empty($this->_accum)) {
674 $row = new Block_HtmlElement('tr', false, $this->_accum);
676 $row->setTightness($this->_next_tight_top, $tight_bottom);
677 $this->_next_tight_top = $tight_bottom;
679 $this->pushContent($row);
680 $this->_accum = false;
685 function _addSubtable ($table) {
686 if (!($table_rows = $table->getContent()))
689 $this->_flushRow($table_rows[0]->_tight_top);
691 foreach ($table_rows as $subdef) {
692 $this->pushContent($subdef);
693 $this->_nrows += $subdef->nrows();
694 $this->_next_tight_top = $subdef->_tight_bot;
698 function _setTerm ($th) {
699 $first_row = &$this->_content[0];
700 if (isa($first_row, 'Block_table_dl_defn'))
701 $first_row->_setTerm($th);
703 $first_row->unshiftContent($th);
706 function _ComputeNcols ($defn) {
708 foreach ($defn as $item) {
709 if ($this->_IsASubtable($item)) {
710 $row = $this->_FirstDefn($item);
711 $ncols = max($ncols, $row->ncols() + 1);
717 function _IsASubtable ($item) {
718 return isa($item, 'HtmlElement')
719 && $item->getTag() == 'table'
720 && $item->getAttr('class') == 'wiki-dl-table';
723 function _FirstDefn ($subtable) {
724 $defs = $subtable->getContent();
729 return $this->_ncols;
733 return $this->_nrows;
736 function & firstTR() {
737 $first = &$this->_content[0];
738 if (isa($first, 'Block_table_dl_defn'))
739 return $first->firstTR();
743 function & lastTR() {
744 $last = &$this->_content[$this->_nrows - 1];
745 if (isa($last, 'Block_table_dl_defn'))
746 return $last->lastTR();
750 function setWidth ($ncols) {
751 assert($ncols >= $this->_ncols);
752 if ($ncols <= $this->_ncols)
754 $rows = &$this->_content;
755 for ($i = 0; $i < count($rows); $i++) {
757 if (isa($row, 'Block_table_dl_defn'))
758 $row->setWidth($ncols - 1);
760 $n = count($row->_content);
761 $lastcol = &$row->_content[$n - 1];
762 if (!empty($lastcol))
763 $lastcol->setAttr('colspan', $ncols - 1);
769 class Block_table_dl extends Block_dl
771 var $_tag = 'dl-table'; // phony.
773 function Block_table_dl() {
774 $this->_re = '\ {0,4} (?:\S.*)? (?<!'.ESCAPE_CHAR.') \| \s* $';
777 function _match (&$input, $m) {
778 if (!($p = $this->_do_match($input, $m)))
780 list ($term, $defn, $loose) = $p;
782 $this->_content[] = new Block_table_dl_defn($term, $defn);
786 function _setTightness($top, $bot) {
787 $this->_content[0]->setTightness($top, $bot);
792 $defs = &$this->_content;
795 foreach ($defs as $defn)
796 $ncols = max($ncols, $defn->ncols());
798 foreach ($defs as $key => $defn)
799 $defs[$key]->setWidth($ncols);
801 return HTML::table(array('class' => 'wiki-dl-table',
809 class Block_oldlists extends Block_list
811 //var $_tag = 'ol', 'ul', or 'dl';
812 var $_re = '(?: [*] (?!(?=\S)[^*]*(?<=\S)[*](?:\\s|[-)}>"\'\\/:.,;!?_*=]))
813 | [#] (?! \[ .*? \] )
817 function _match (&$input, $m) {
819 if (!preg_match('/[*#;]*$/A', $input->getPrefix())) {
825 $oldindent = '[*#;](?=[#*]|;.*:.*\S)';
826 $newindent = sprintf('\\ {%d}', strlen($prefix));
827 $indent = "(?:$oldindent|$newindent)";
829 $bullet = $prefix[0];
830 if ($bullet == '*') {
834 elseif ($bullet == '#') {
840 list ($term,) = explode(':', substr($prefix, 1), 2);
843 $this->_content[] = new Block_HtmlElement('dt', false,
844 TransformInline($term));
848 $this->_content[] = new TightSubBlock($input, $indent, $m->match, $itemtag);
852 function _setTightness($top, $bot) {
853 if (count($this->_content) == 1) {
854 $li = &$this->_content[0];
855 $li->setTightness($top, $bot);
858 // This is where php5 usually brakes.
859 // wrong duplicated <li> contents
860 if (DEBUG and DEBUG & _DEBUG_PARSER and check_php_version(5)) {
861 if (count($this->_content) != 2) {
864 $class = new Reflection_Class('XmlElement');
865 // Print out basic information
867 "===> The %s%s%s %s '%s' [extends %s]\n".
870 " having the modifiers %d [%s]\n",
871 $class->isInternal() ? 'internal' : 'user-defined',
872 $class->isAbstract() ? ' abstract' : '',
873 $class->isFinal() ? ' final' : '',
874 $class->isInterface() ? 'interface' : 'class',
876 var_export($class->getParentClass(), 1),
877 $class->getFileName(),
878 $class->getStartLine(),
879 $class->getEndline(),
880 $class->getModifiers(),
881 implode(' ', Reflection::getModifierNames($class->getModifiers()))
883 // Print class properties
884 printf("---> Properties: %s\n", var_export($class->getProperties(), 1));
886 echo 'count($this->_content): ', count($this->_content),"\n";
887 echo "\$this->_content[0]: "; var_dump ($this->_content[0]);
889 for ($i=1; $i < min(5, count($this->_content)); $i++) {
890 $c =& $this->_content[$i];
891 echo '$this->_content[',$i,"]: \n";
892 echo "_tag: "; var_dump ($c->_tag);
893 echo "_content: "; var_dump ($c->_content);
894 echo "_properties: "; var_dump ($c->_properties);
896 debug_print_backtrace();
897 if (DEBUG & _DEBUG_APD) {
898 if (function_exists("xdebug_get_function_stack")) {
899 var_dump (xdebug_get_function_stack());
905 if (!check_php_version(5))
906 assert(count($this->_content) == 2);
907 $dt = &$this->_content[0];
908 $dd = &$this->_content[1];
909 $dt->setTightness($top, false);
910 $dd->setTightness(false, $bot);
915 class Block_pre extends BlockMarkup
917 var $_re = '<(?:pre|verbatim|nowiki)>';
919 function _match (&$input, $m) {
920 $endtag = '</' . substr($m->match, 1);
922 $pos = $input->getPos();
924 $line = $m->postmatch;
925 while (ltrim($line) != $endtag) {
927 if (($line = $input->nextLine()) === false) {
928 $input->setPos($pos);
934 if ($m->match == '<nowiki>')
935 $text = join("<br>\n", $text);
937 $text = join("\n", $text);
939 // FIXME: no <img>, <big>, <small>, <sup>, or <sub>'s allowed
941 if ($m->match == '<pre>')
942 $text = TransformInline($text);
943 if ($m->match == '<nowiki>') {
944 $text = TransformInlineNowiki($text);
945 $this->_element = new Block_HtmlElement('p', false, $text);
947 $this->_element = new Block_HtmlElement('pre', false, $text);
953 class Block_plugin extends Block_pre
955 var $_re = '<\?plugin(?:-form)?(?!\S)';
958 /* <?plugin Backlinks
960 /* <?plugin ListPages pages=<!plugin-list Backlinks!>
961 * exclude=<!plugin-list TitleSearch s=T*!> ?>
965 function _match (&$input, $m) {
966 $pos = $input->getPos();
967 $pi = $m->match . $m->postmatch;
968 while (!preg_match('/(?<!'.ESCAPE_CHAR.')\?>\s*$/', $pi)) {
969 if (($line = $input->nextLine()) === false) {
970 $input->setPos($pos);
977 $this->_element = new Cached_PluginInvocation($pi);
982 class Block_email_blockquote extends BlockMarkup
984 var $_attr = array('class' => 'mail-style-quote');
987 function _match (&$input, $m) {
988 //$indent = str_replace(' ', '\\ ', $m->match) . '|>$';
989 $indent = $this->_re;
990 $this->_element = new SubBlock($input, $indent, $m->match,
991 'blockquote', $this->_attr);
996 class Block_hr extends BlockMarkup
998 var $_re = '-{4,}\s*$';
1000 function _match (&$input, $m) {
1002 $this->_element = new Block_HtmlElement('hr');
1006 function _setTightness($top, $bot) {
1007 // Don't tighten <hr/>s
1011 class Block_heading extends BlockMarkup
1013 var $_re = '!{1,3}';
1015 function _match (&$input, $m) {
1016 $tag = "h" . (5 - strlen($m->match));
1017 $text = TransformInline(trim($m->postmatch));
1020 $this->_element = new Block_HtmlElement($tag, false, $text);
1025 function _setTightness($top, $bot) {
1026 // Don't tighten headers.
1030 class Block_p extends BlockMarkup
1036 function _match (&$input, $m) {
1037 $this->_text = $m->match;
1042 function _setTightness ($top, $bot) {
1043 $this->_tight_top = $top;
1044 $this->_tight_bot = $bot;
1047 function merge ($nextBlock) {
1048 $class = get_class($nextBlock);
1049 if (strtolower($class) == 'block_p' and $this->_tight_bot) {
1050 $this->_text .= "\n" . $nextBlock->_text;
1051 $this->_tight_bot = $nextBlock->_tight_bot;
1057 function finish () {
1058 $content = TransformInline(trim($this->_text));
1059 $p = new Block_HtmlElement('p', false, $content);
1060 $p->setTightness($this->_tight_top, $this->_tight_bot);
1065 class Block_divspan extends BlockMarkup
1067 var $_re = '<(?: div|span)(?:[^>]*)?>';
1069 function _match (&$input, $m) {
1070 if (substr($m->match,1,4) == 'span') {
1076 $args = substr(trim(substr($m->match,strlen($tag))),-1,1);
1077 $pos = $input->getPos();
1078 $pi = $m->postmatch;
1079 while (!preg_match('/(?:</'.$tag.'>)/', $pi)) {
1080 if (($line = $input->nextLine()) === false) {
1081 $input->setPos($pos);
1087 $content = TransformInline(trim($pi));
1088 $this->_element = new Block_HtmlElement($tag, $args, $content);
1089 $this->_element->setTightness($this->_tight_top, $this->_tight_bot);
1095 ////////////////////////////////////////////////////////////////
1099 * Transform the text of a page, and return a parse tree.
1101 function TransformTextPre ($text, $markup = 2.0, $basepage=false) {
1102 if (isa($text, 'WikiDB_PageRevision')) {
1104 $text = $rev->getPackedContent();
1105 $markup = $rev->get('markup');
1107 // NEW: default markup is new, to increase stability
1108 if (!empty($markup) && $markup < 2.0) {
1109 $text = ConvertOldMarkup($text);
1112 // Expand leading tabs.
1113 $text = expand_tabs($text);
1114 //set_time_limit(3);
1115 $output = new WikiText($text);
1121 * Transform the text of a page, and return an XmlContent,
1122 * suitable for printXml()-ing.
1124 function TransformText ($text, $markup = 2.0, $basepage=false) {
1125 $output = TransformTextPre($text, $markup, $basepage);
1127 // This is for immediate consumption.
1128 // We must bind the contents to a base pagename so that
1129 // relative page links can be properly linkified...
1130 return new CacheableMarkup($output->getContent(), $basepage);
1132 return new XmlContent($output->getContent());
1135 // $Log: not supported by cvs2svn $
1136 // Revision 1.57 2006/10/12 06:32:30 rurban
1137 // Optionally support new tags <div>, <span> with ENABLE_MARKUP_DIVSPAN (in work)
1139 // Revision 1.56 2006/07/23 14:03:18 rurban
1140 // add new feature: DISABLE_MARKUP_WIKIWORD
1142 // Revision 1.55 2005/01/29 21:08:41 rurban
1145 // Revision 1.54 2005/01/29 21:00:54 rurban
1146 // do not warn on empty nextBlock
1148 // Revision 1.53 2005/01/29 20:36:44 rurban
1149 // very important php5 fix! clone objects
1151 // Revision 1.52 2004/10/21 19:52:10 rurban
1152 // Patch #994487: Allow callers to get the parse tree for a page (danfr)
1154 // Revision 1.51 2004/09/14 09:54:04 rurban
1155 // cache ParsedBlock::_initBlockTypes
1157 // Revision 1.50 2004/09/08 13:38:00 rurban
1158 // improve loadfile stability by using markup=2 as default for undefined markup-style.
1159 // use more refs for huge objects.
1160 // fix debug=static issue in WikiPluginCached
1162 // Revision 1.49 2004/07/02 09:55:58 rurban
1163 // more stability fixes: new DISABLE_GETIMAGESIZE if your php crashes when loading LinkIcons: failing getimagesize in old phps; blockparser stabilized
1165 // Revision 1.48 2004/06/21 06:30:16 rurban
1166 // revert to prev references
1168 // Revision 1.47 2004/06/20 15:30:04 rurban
1169 // get_class case-sensitivity issues
1171 // Revision 1.46 2004/06/20 14:42:53 rurban
1172 // various php5 fixes (still broken at blockparser)
1175 // (c-file-style: "gnu")
1179 // c-basic-offset: 4
1180 // c-hanging-comment-ender-p: nil
1181 // indent-tabs-mode: nil