xref: /dokuwiki/inc/parser/handler.php (revision 22064dd98283bc61e1b444e45707c1c51230eb92) 
1<?php
2if(!defined('DOKU_INC')) die('meh.');
3if (!defined('DOKU_PARSER_EOL')) define('DOKU_PARSER_EOL',"\n");   // add this to make handling test cases simpler
4
5class Doku_Handler {
6
7    var $Renderer = NULL;
8
9    var $CallWriter = NULL;
10
11    var $calls = array();
12
13    var $status = array(
14        'section' => false,
15    );
16
17    var $rewriteBlocks = true;
18
19    function Doku_Handler() {
20        $this->CallWriter = new Doku_Handler_CallWriter($this);
21    }
22
23    function _addCall($handler, $args, $pos) {
24        $call = array($handler,$args, $pos);
25        $this->CallWriter->writeCall($call);
26    }
27
28    function addPluginCall($plugin, $args, $state, $pos, $match) {
29        $call = array('plugin',array($plugin, $args, $state, $match), $pos);
30        $this->CallWriter->writeCall($call);
31    }
32
33    function _finalize(){
34
35        $this->CallWriter->finalise();
36
37        if ( $this->status['section'] ) {
38           $last_call = end($this->calls);
39           array_push($this->calls,array('section_close',array(), $last_call[2]));
40        }
41
42        if ( $this->rewriteBlocks ) {
43            $B = new Doku_Handler_Block();
44            $this->calls = $B->process($this->calls);
45        }
46
47        trigger_event('PARSER_HANDLER_DONE',$this);
48
49        array_unshift($this->calls,array('document_start',array(),0));
50        $last_call = end($this->calls);
51        array_push($this->calls,array('document_end',array(),$last_call[2]));
52    }
53
54    function fetch() {
55        $call = each($this->calls);
56        if ( $call ) {
57            return $call['value'];
58        }
59        return false;
60    }
61
62
63    /**
64     * Special plugin handler
65     *
66     * This handler is called for all modes starting with 'plugin_'.
67     * An additional parameter with the plugin name is passed
68     *
69     * @author Andreas Gohr <andi@splitbrain.org>
70     */
71    function plugin($match, $state, $pos, $pluginname){
72        $data = array($match);
73        $plugin =& plugin_load('syntax',$pluginname);
74        if($plugin != null){
75            $data = $plugin->handle($match, $state, $pos, $this);
76        }
77        if ($data !== false) {
78          $this->addPluginCall($pluginname,$data,$state,$pos,$match);
79        }
80        return true;
81    }
82
83    function base($match, $state, $pos) {
84        switch ( $state ) {
85            case DOKU_LEXER_UNMATCHED:
86                $this->_addCall('cdata',array($match), $pos);
87                return true;
88            break;
89        }
90    }
91
92    function header($match, $state, $pos) {
93        // get level and title
94        $title = trim($match);
95        $level = 7 - strspn($title,'=');
96        if($level < 1) $level = 1;
97        $title = trim($title,'=');
98        $title = trim($title);
99
100        if ($this->status['section']) $this->_addCall('section_close',array(),$pos);
101
102        $this->_addCall('header',array($title,$level,$pos), $pos);
103
104        $this->_addCall('section_open',array($level),$pos);
105        $this->status['section'] = true;
106        return true;
107    }
108
109    function notoc($match, $state, $pos) {
110        $this->_addCall('notoc',array(),$pos);
111        return true;
112    }
113
114    function nocache($match, $state, $pos) {
115        $this->_addCall('nocache',array(),$pos);
116        return true;
117    }
118
119    function linebreak($match, $state, $pos) {
120        $this->_addCall('linebreak',array(),$pos);
121        return true;
122    }
123
124    function eol($match, $state, $pos) {
125        $this->_addCall('eol',array(),$pos);
126        return true;
127    }
128
129    function hr($match, $state, $pos) {
130        $this->_addCall('hr',array(),$pos);
131        return true;
132    }
133
134    function _nestingTag($match, $state, $pos, $name) {
135        switch ( $state ) {
136            case DOKU_LEXER_ENTER:
137                $this->_addCall($name.'_open', array(), $pos);
138            break;
139            case DOKU_LEXER_EXIT:
140                $this->_addCall($name.'_close', array(), $pos);
141            break;
142            case DOKU_LEXER_UNMATCHED:
143                $this->_addCall('cdata',array($match), $pos);
144            break;
145        }
146    }
147
148    function strong($match, $state, $pos) {
149        $this->_nestingTag($match, $state, $pos, 'strong');
150        return true;
151    }
152
153    function emphasis($match, $state, $pos) {
154        $this->_nestingTag($match, $state, $pos, 'emphasis');
155        return true;
156    }
157
158    function underline($match, $state, $pos) {
159        $this->_nestingTag($match, $state, $pos, 'underline');
160        return true;
161    }
162
163    function monospace($match, $state, $pos) {
164        $this->_nestingTag($match, $state, $pos, 'monospace');
165        return true;
166    }
167
168    function subscript($match, $state, $pos) {
169        $this->_nestingTag($match, $state, $pos, 'subscript');
170        return true;
171    }
172
173    function superscript($match, $state, $pos) {
174        $this->_nestingTag($match, $state, $pos, 'superscript');
175        return true;
176    }
177
178    function deleted($match, $state, $pos) {
179        $this->_nestingTag($match, $state, $pos, 'deleted');
180        return true;
181    }
182
183
184    function footnote($match, $state, $pos) {
185//        $this->_nestingTag($match, $state, $pos, 'footnote');
186        if (!isset($this->_footnote)) $this->_footnote = false;
187
188        switch ( $state ) {
189            case DOKU_LEXER_ENTER:
190                // footnotes can not be nested - however due to limitations in lexer it can't be prevented
191                // we will still enter a new footnote mode, we just do nothing
192                if ($this->_footnote) {
193                  $this->_addCall('cdata',array($match), $pos);
194                  break;
195                }
196
197                $this->_footnote = true;
198
199                $ReWriter = new Doku_Handler_Nest($this->CallWriter,'footnote_close');
200                $this->CallWriter = & $ReWriter;
201                $this->_addCall('footnote_open', array(), $pos);
202            break;
203            case DOKU_LEXER_EXIT:
204                // check whether we have already exitted the footnote mode, can happen if the modes were nested
205                if (!$this->_footnote) {
206                  $this->_addCall('cdata',array($match), $pos);
207                  break;
208                }
209
210                $this->_footnote = false;
211
212                $this->_addCall('footnote_close', array(), $pos);
213                $this->CallWriter->process();
214                $ReWriter = & $this->CallWriter;
215                $this->CallWriter = & $ReWriter->CallWriter;
216            break;
217            case DOKU_LEXER_UNMATCHED:
218                $this->_addCall('cdata', array($match), $pos);
219            break;
220        }
221        return true;
222    }
223
224    function listblock($match, $state, $pos) {
225        switch ( $state ) {
226            case DOKU_LEXER_ENTER:
227                $ReWriter = new Doku_Handler_List($this->CallWriter);
228                $this->CallWriter = & $ReWriter;
229                $this->_addCall('list_open', array($match), $pos);
230            break;
231            case DOKU_LEXER_EXIT:
232                $this->_addCall('list_close', array(), $pos);
233                $this->CallWriter->process();
234                $ReWriter = & $this->CallWriter;
235                $this->CallWriter = & $ReWriter->CallWriter;
236            break;
237            case DOKU_LEXER_MATCHED:
238                $this->_addCall('list_item', array($match), $pos);
239            break;
240            case DOKU_LEXER_UNMATCHED:
241                $this->_addCall('cdata', array($match), $pos);
242            break;
243        }
244        return true;
245    }
246
247    function unformatted($match, $state, $pos) {
248        if ( $state == DOKU_LEXER_UNMATCHED ) {
249            $this->_addCall('unformatted',array($match), $pos);
250        }
251        return true;
252    }
253
254    function php($match, $state, $pos) {
255        global $conf;
256        if ( $state == DOKU_LEXER_UNMATCHED ) {
257            $this->_addCall('php',array($match), $pos);
258        }
259        return true;
260    }
261
262    function phpblock($match, $state, $pos) {
263        global $conf;
264        if ( $state == DOKU_LEXER_UNMATCHED ) {
265            $this->_addCall('phpblock',array($match), $pos);
266        }
267        return true;
268    }
269
270    function html($match, $state, $pos) {
271        global $conf;
272        if ( $state == DOKU_LEXER_UNMATCHED ) {
273            $this->_addCall('html',array($match), $pos);
274        }
275        return true;
276    }
277
278    function htmlblock($match, $state, $pos) {
279        global $conf;
280        if ( $state == DOKU_LEXER_UNMATCHED ) {
281            $this->_addCall('htmlblock',array($match), $pos);
282        }
283        return true;
284    }
285
286    function preformatted($match, $state, $pos) {
287        switch ( $state ) {
288            case DOKU_LEXER_ENTER:
289                $ReWriter = new Doku_Handler_Preformatted($this->CallWriter);
290                $this->CallWriter = & $ReWriter;
291                $this->_addCall('preformatted_start',array(), $pos);
292            break;
293            case DOKU_LEXER_EXIT:
294                $this->_addCall('preformatted_end',array(), $pos);
295                $this->CallWriter->process();
296                $ReWriter = & $this->CallWriter;
297                $this->CallWriter = & $ReWriter->CallWriter;
298            break;
299            case DOKU_LEXER_MATCHED:
300                $this->_addCall('preformatted_newline',array(), $pos);
301            break;
302            case DOKU_LEXER_UNMATCHED:
303                $this->_addCall('preformatted_content',array($match), $pos);
304            break;
305        }
306
307        return true;
308    }
309
310    function quote($match, $state, $pos) {
311
312        switch ( $state ) {
313
314            case DOKU_LEXER_ENTER:
315                $ReWriter = new Doku_Handler_Quote($this->CallWriter);
316                $this->CallWriter = & $ReWriter;
317                $this->_addCall('quote_start',array($match), $pos);
318            break;
319
320            case DOKU_LEXER_EXIT:
321                $this->_addCall('quote_end',array(), $pos);
322                $this->CallWriter->process();
323                $ReWriter = & $this->CallWriter;
324                $this->CallWriter = & $ReWriter->CallWriter;
325            break;
326
327            case DOKU_LEXER_MATCHED:
328                $this->_addCall('quote_newline',array($match), $pos);
329            break;
330
331            case DOKU_LEXER_UNMATCHED:
332                $this->_addCall('cdata',array($match), $pos);
333            break;
334
335        }
336
337        return true;
338    }
339
340    function file($match, $state, $pos) {
341        return $this->code($match, $state, $pos, 'file');
342    }
343
344    function code($match, $state, $pos, $type='code') {
345        if ( $state == DOKU_LEXER_UNMATCHED ) {
346            $matches = explode('>',$match,2);
347
348            $param = preg_split('/\s+/', $matches[0], 2, PREG_SPLIT_NO_EMPTY);
349            while(count($param) < 2) array_push($param, null);
350
351            // We shortcut html here.
352            if ($param[0] == 'html') $param[0] = 'html4strict';
353            if ($param[0] == '-') $param[0] = null;
354            array_unshift($param, $matches[1]);
355
356            $this->_addCall($type, $param, $pos);
357        }
358        return true;
359    }
360
361    function acronym($match, $state, $pos) {
362        $this->_addCall('acronym',array($match), $pos);
363        return true;
364    }
365
366    function smiley($match, $state, $pos) {
367        $this->_addCall('smiley',array($match), $pos);
368        return true;
369    }
370
371    function wordblock($match, $state, $pos) {
372        $this->_addCall('wordblock',array($match), $pos);
373        return true;
374    }
375
376    function entity($match, $state, $pos) {
377        $this->_addCall('entity',array($match), $pos);
378        return true;
379    }
380
381    function multiplyentity($match, $state, $pos) {
382        preg_match_all('/\d+/',$match,$matches);
383        $this->_addCall('multiplyentity',array($matches[0][0],$matches[0][1]), $pos);
384        return true;
385    }
386
387    function singlequoteopening($match, $state, $pos) {
388        $this->_addCall('singlequoteopening',array(), $pos);
389        return true;
390    }
391
392    function singlequoteclosing($match, $state, $pos) {
393        $this->_addCall('singlequoteclosing',array(), $pos);
394        return true;
395    }
396
397    function apostrophe($match, $state, $pos) {
398        $this->_addCall('apostrophe',array(), $pos);
399        return true;
400    }
401
402    function doublequoteopening($match, $state, $pos) {
403        $this->_addCall('doublequoteopening',array(), $pos);
404        return true;
405    }
406
407    function doublequoteclosing($match, $state, $pos) {
408        $this->_addCall('doublequoteclosing',array(), $pos);
409        return true;
410    }
411
412    function camelcaselink($match, $state, $pos) {
413        $this->_addCall('camelcaselink',array($match), $pos);
414        return true;
415    }
416
417    /*
418    */
419    function internallink($match, $state, $pos) {
420        // Strip the opening and closing markup
421        $link = preg_replace(array('/^\[\[/','/\]\]$/u'),'',$match);
422
423        // Split title from URL
424        $link = explode('|',$link,2);
425        if ( !isset($link[1]) ) {
426            $link[1] = NULL;
427        } else if ( preg_match('/^\{\{[^\}]+\}\}$/',$link[1]) ) {
428            // If the title is an image, convert it to an array containing the image details
429            $link[1] = Doku_Handler_Parse_Media($link[1]);
430        }
431        $link[0] = trim($link[0]);
432
433        //decide which kind of link it is
434
435        if ( preg_match('/^[a-zA-Z0-9\.]+>{1}.*$/u',$link[0]) ) {
436        // Interwiki
437            $interwiki = explode('>',$link[0],2);
438            $this->_addCall(
439                'interwikilink',
440                array($link[0],$link[1],strtolower($interwiki[0]),$interwiki[1]),
441                $pos
442                );
443        }elseif ( preg_match('/^\\\\\\\\[^\\\\]+?\\\\/u',$link[0]) ) {
444        // Windows Share
445            $this->_addCall(
446                'windowssharelink',
447                array($link[0],$link[1]),
448                $pos
449                );
450        }elseif ( preg_match('#^([a-z0-9\-\.+]+?)://#i',$link[0]) ) {
451        // external link (accepts all protocols)
452            $this->_addCall(
453                    'externallink',
454                    array($link[0],$link[1]),
455                    $pos
456                    );
457        }elseif ( preg_match('<'.PREG_PATTERN_VALID_EMAIL.'>',$link[0]) ) {
458        // E-Mail (pattern above is defined in inc/mail.php)
459            $this->_addCall(
460                'emaillink',
461                array($link[0],$link[1]),
462                $pos
463                );
464        }elseif ( preg_match('!^#.+!',$link[0]) ){
465        // local link
466            $this->_addCall(
467                'locallink',
468                array(substr($link[0],1),$link[1]),
469                $pos
470                );
471        }else{
472        // internal link
473            $this->_addCall(
474                'internallink',
475                array($link[0],$link[1]),
476                $pos
477                );
478        }
479
480        return true;
481    }
482
483    function filelink($match, $state, $pos) {
484        $this->_addCall('filelink',array($match, NULL), $pos);
485        return true;
486    }
487
488    function windowssharelink($match, $state, $pos) {
489        $this->_addCall('windowssharelink',array($match, NULL), $pos);
490        return true;
491    }
492
493    function media($match, $state, $pos) {
494        $p = Doku_Handler_Parse_Media($match);
495
496        $this->_addCall(
497              $p['type'],
498              array($p['src'], $p['title'], $p['align'], $p['width'],
499                     $p['height'], $p['cache'], $p['linking']),
500              $pos
501             );
502        return true;
503    }
504
505    function rss($match, $state, $pos) {
506        $link = preg_replace(array('/^\{\{rss>/','/\}\}$/'),'',$match);
507
508        // get params
509        list($link,$params) = explode(' ',$link,2);
510
511        $p = array();
512        if(preg_match('/\b(\d+)\b/',$params,$match)){
513            $p['max'] = $match[1];
514        }else{
515            $p['max'] = 8;
516        }
517        $p['reverse'] = (preg_match('/rev/',$params));
518        $p['author']  = (preg_match('/\b(by|author)/',$params));
519        $p['date']    = (preg_match('/\b(date)/',$params));
520        $p['details'] = (preg_match('/\b(desc|detail)/',$params));
521
522        if (preg_match('/\b(\d+)([dhm])\b/',$params,$match)) {
523          $period = array('d' => 86400, 'h' => 3600, 'm' => 60);
524          $p['refresh'] = max(600,$match[1]*$period[$match[2]]);  // n * period in seconds, minimum 10 minutes
525        } else {
526          $p['refresh'] = 14400;   // default to 4 hours
527        }
528
529        $this->_addCall('rss',array($link,$p),$pos);
530        return true;
531    }
532
533    function externallink($match, $state, $pos) {
534        $url   = $match;
535        $title = null;
536
537        // add protocol on simple short URLs
538        if(substr($url,0,3) == 'ftp' && (substr($url,0,6) != 'ftp://')){
539            $title = $url;
540            $url   = 'ftp://'.$url;
541        }
542        if(substr($url,0,3) == 'www' && (substr($url,0,7) != 'http://')){
543            $title = $url;
544            $url = 'http://'.$url;
545        }
546
547        $this->_addCall('externallink',array($url, $title), $pos);
548        return true;
549    }
550
551    function emaillink($match, $state, $pos) {
552        $email = preg_replace(array('/^</','/>$/'),'',$match);
553        $this->_addCall('emaillink',array($email, NULL), $pos);
554        return true;
555    }
556
557    function table($match, $state, $pos) {
558        switch ( $state ) {
559
560            case DOKU_LEXER_ENTER:
561
562                $ReWriter = new Doku_Handler_Table($this->CallWriter);
563                $this->CallWriter = & $ReWriter;
564
565                $this->_addCall('table_start', array($pos + 1), $pos);
566                if ( trim($match) == '^' ) {
567                    $this->_addCall('tableheader', array(), $pos);
568                } else {
569                    $this->_addCall('tablecell', array(), $pos);
570                }
571            break;
572
573            case DOKU_LEXER_EXIT:
574                $this->_addCall('table_end', array($pos), $pos);
575                $this->CallWriter->process();
576                $ReWriter = & $this->CallWriter;
577                $this->CallWriter = & $ReWriter->CallWriter;
578            break;
579
580            case DOKU_LEXER_UNMATCHED:
581                if ( trim($match) != '' ) {
582                    $this->_addCall('cdata',array($match), $pos);
583                }
584            break;
585
586            case DOKU_LEXER_MATCHED:
587                if ( $match == ' ' ){
588                    $this->_addCall('cdata', array($match), $pos);
589                } else if ( preg_match('/:::/',$match) ) {
590                    $this->_addCall('rowspan', array($match), $pos);
591                } else if ( preg_match('/\t+/',$match) ) {
592                    $this->_addCall('table_align', array($match), $pos);
593                } else if ( preg_match('/ {2,}/',$match) ) {
594                    $this->_addCall('table_align', array($match), $pos);
595                } else if ( $match == "\n|" ) {
596                    $this->_addCall('table_row', array(), $pos);
597                    $this->_addCall('tablecell', array(), $pos);
598                } else if ( $match == "\n^" ) {
599                    $this->_addCall('table_row', array(), $pos);
600                    $this->_addCall('tableheader', array(), $pos);
601                } else if ( $match == '|' ) {
602                    $this->_addCall('tablecell', array(), $pos);
603                } else if ( $match == '^' ) {
604                    $this->_addCall('tableheader', array(), $pos);
605                }
606            break;
607        }
608        return true;
609    }
610}
611
612//------------------------------------------------------------------------
613function Doku_Handler_Parse_Media($match) {
614
615    // Strip the opening and closing markup
616    $link = preg_replace(array('/^\{\{/','/\}\}$/u'),'',$match);
617
618    // Split title from URL
619    $link = explode('|',$link,2);
620
621
622    // Check alignment
623    $ralign = (bool)preg_match('/^ /',$link[0]);
624    $lalign = (bool)preg_match('/ $/',$link[0]);
625
626    // Logic = what's that ;)...
627    if ( $lalign & $ralign ) {
628        $align = 'center';
629    } else if ( $ralign ) {
630        $align = 'right';
631    } else if ( $lalign ) {
632        $align = 'left';
633    } else {
634        $align = NULL;
635    }
636
637    // The title...
638    if ( !isset($link[1]) ) {
639        $link[1] = NULL;
640    }
641
642    //remove aligning spaces
643    $link[0] = trim($link[0]);
644
645    //split into src and parameters (using the very last questionmark)
646    $pos = strrpos($link[0], '?');
647    if($pos !== false){
648        $src   = substr($link[0],0,$pos);
649        $param = substr($link[0],$pos+1);
650    }else{
651        $src   = $link[0];
652        $param = '';
653    }
654
655    //parse width and height
656    if(preg_match('#(\d+)(x(\d+))?#i',$param,$size)){
657        ($size[1]) ? $w = $size[1] : $w = NULL;
658        ($size[3]) ? $h = $size[3] : $h = NULL;
659    } else {
660        $w = NULL;
661        $h = NULL;
662    }
663
664    //get linking command
665    if(preg_match('/nolink/i',$param)){
666        $linking = 'nolink';
667    }else if(preg_match('/direct/i',$param)){
668        $linking = 'direct';
669    }else if(preg_match('/linkonly/i',$param)){
670        $linking = 'linkonly';
671    }else{
672        $linking = 'details';
673    }
674
675    //get caching command
676    if (preg_match('/(nocache|recache)/i',$param,$cachemode)){
677        $cache = $cachemode[1];
678    }else{
679        $cache = 'cache';
680    }
681
682    // Check whether this is a local or remote image
683    if ( media_isexternal($src) ) {
684        $call = 'externalmedia';
685    } else {
686        $call = 'internalmedia';
687    }
688
689    $params = array(
690        'type'=>$call,
691        'src'=>$src,
692        'title'=>$link[1],
693        'align'=>$align,
694        'width'=>$w,
695        'height'=>$h,
696        'cache'=>$cache,
697        'linking'=>$linking,
698    );
699
700    return $params;
701}
702
703//------------------------------------------------------------------------
704class Doku_Handler_CallWriter {
705
706    var $Handler;
707
708    function Doku_Handler_CallWriter(& $Handler) {
709        $this->Handler = & $Handler;
710    }
711
712    function writeCall($call) {
713        $this->Handler->calls[] = $call;
714    }
715
716    function writeCalls($calls) {
717        $this->Handler->calls = array_merge($this->Handler->calls, $calls);
718    }
719
720    // function is required, but since this call writer is first/highest in
721    // the chain it is not required to do anything
722    function finalise() {
723        unset($this->Handler);
724    }
725}
726
727//------------------------------------------------------------------------
728/**
729 * Generic call writer class to handle nesting of rendering instructions
730 * within a render instruction. Also see nest() method of renderer base class
731 *
732 * @author    Chris Smith <chris@jalakai.co.uk>
733 */
734class Doku_Handler_Nest {
735
736    var $CallWriter;
737    var $calls = array();
738
739    var $closingInstruction;
740
741    /**
742     * constructor
743     *
744     * @param  object     $CallWriter     the renderers current call writer
745     * @param  string     $close          closing instruction name, this is required to properly terminate the
746     *                                    syntax mode if the document ends without a closing pattern
747     */
748    function Doku_Handler_Nest(& $CallWriter, $close="nest_close") {
749        $this->CallWriter = & $CallWriter;
750
751        $this->closingInstruction = $close;
752    }
753
754    function writeCall($call) {
755        $this->calls[] = $call;
756    }
757
758    function writeCalls($calls) {
759        $this->calls = array_merge($this->calls, $calls);
760    }
761
762    function finalise() {
763        $last_call = end($this->calls);
764        $this->writeCall(array($this->closingInstruction,array(), $last_call[2]));
765
766        $this->process();
767        $this->CallWriter->finalise();
768        unset($this->CallWriter);
769    }
770
771    function process() {
772        // merge consecutive cdata
773        $unmerged_calls = $this->calls;
774        $this->calls = array();
775
776        foreach ($unmerged_calls as $call) $this->addCall($call);
777
778        $first_call = reset($this->calls);
779        $this->CallWriter->writeCall(array("nest", array($this->calls), $first_call[2]));
780    }
781
782    function addCall($call) {
783        $key = count($this->calls);
784        if ($key and ($call[0] == 'cdata') and ($this->calls[$key-1][0] == 'cdata')) {
785            $this->calls[$key-1][1][0] .= $call[1][0];
786        } else if ($call[0] == 'eol') {
787            // do nothing (eol shouldn't be allowed, to counter preformatted fix in #1652 & #1699)
788        } else {
789            $this->calls[] = $call;
790        }
791    }
792}
793
794class Doku_Handler_List {
795
796    var $CallWriter;
797
798    var $calls = array();
799    var $listCalls = array();
800    var $listStack = array();
801
802    function Doku_Handler_List(& $CallWriter) {
803        $this->CallWriter = & $CallWriter;
804    }
805
806    function writeCall($call) {
807        $this->calls[] = $call;
808    }
809
810    // Probably not needed but just in case...
811    function writeCalls($calls) {
812        $this->calls = array_merge($this->calls, $calls);
813#        $this->CallWriter->writeCalls($this->calls);
814    }
815
816    function finalise() {
817        $last_call = end($this->calls);
818        $this->writeCall(array('list_close',array(), $last_call[2]));
819
820        $this->process();
821        $this->CallWriter->finalise();
822        unset($this->CallWriter);
823    }
824
825    //------------------------------------------------------------------------
826    function process() {
827
828        foreach ( $this->calls as $call ) {
829            switch ($call[0]) {
830                case 'list_item':
831                    $this->listOpen($call);
832                break;
833                case 'list_open':
834                    $this->listStart($call);
835                break;
836                case 'list_close':
837                    $this->listEnd($call);
838                break;
839                default:
840                    $this->listContent($call);
841                break;
842            }
843        }
844
845        $this->CallWriter->writeCalls($this->listCalls);
846    }
847
848    //------------------------------------------------------------------------
849    function listStart($call) {
850        $depth = $this->interpretSyntax($call[1][0], $listType);
851
852        $this->initialDepth = $depth;
853        $this->listStack[] = array($listType, $depth);
854
855        $this->listCalls[] = array('list'.$listType.'_open',array(),$call[2]);
856        $this->listCalls[] = array('listitem_open',array(1),$call[2]);
857        $this->listCalls[] = array('listcontent_open',array(),$call[2]);
858    }
859
860    //------------------------------------------------------------------------
861    function listEnd($call) {
862        $closeContent = true;
863
864        while ( $list = array_pop($this->listStack) ) {
865            if ( $closeContent ) {
866                $this->listCalls[] = array('listcontent_close',array(),$call[2]);
867                $closeContent = false;
868            }
869            $this->listCalls[] = array('listitem_close',array(),$call[2]);
870            $this->listCalls[] = array('list'.$list[0].'_close', array(), $call[2]);
871        }
872    }
873
874    //------------------------------------------------------------------------
875    function listOpen($call) {
876        $depth = $this->interpretSyntax($call[1][0], $listType);
877        $end = end($this->listStack);
878
879        // Not allowed to be shallower than initialDepth
880        if ( $depth < $this->initialDepth ) {
881            $depth = $this->initialDepth;
882        }
883
884        //------------------------------------------------------------------------
885        if ( $depth == $end[1] ) {
886
887            // Just another item in the list...
888            if ( $listType == $end[0] ) {
889                $this->listCalls[] = array('listcontent_close',array(),$call[2]);
890                $this->listCalls[] = array('listitem_close',array(),$call[2]);
891                $this->listCalls[] = array('listitem_open',array($depth-1),$call[2]);
892                $this->listCalls[] = array('listcontent_open',array(),$call[2]);
893
894            // Switched list type...
895            } else {
896
897                $this->listCalls[] = array('listcontent_close',array(),$call[2]);
898                $this->listCalls[] = array('listitem_close',array(),$call[2]);
899                $this->listCalls[] = array('list'.$end[0].'_close', array(), $call[2]);
900                $this->listCalls[] = array('list'.$listType.'_open', array(), $call[2]);
901                $this->listCalls[] = array('listitem_open', array($depth-1), $call[2]);
902                $this->listCalls[] = array('listcontent_open',array(),$call[2]);
903
904                array_pop($this->listStack);
905                $this->listStack[] = array($listType, $depth);
906            }
907
908        //------------------------------------------------------------------------
909        // Getting deeper...
910        } else if ( $depth > $end[1] ) {
911
912            $this->listCalls[] = array('listcontent_close',array(),$call[2]);
913            $this->listCalls[] = array('list'.$listType.'_open', array(), $call[2]);
914            $this->listCalls[] = array('listitem_open', array($depth-1), $call[2]);
915            $this->listCalls[] = array('listcontent_open',array(),$call[2]);
916
917            $this->listStack[] = array($listType, $depth);
918
919        //------------------------------------------------------------------------
920        // Getting shallower ( $depth < $end[1] )
921        } else {
922            $this->listCalls[] = array('listcontent_close',array(),$call[2]);
923            $this->listCalls[] = array('listitem_close',array(),$call[2]);
924            $this->listCalls[] = array('list'.$end[0].'_close',array(),$call[2]);
925
926            // Throw away the end - done
927            array_pop($this->listStack);
928
929            while (1) {
930                $end = end($this->listStack);
931
932                if ( $end[1] <= $depth ) {
933
934                    // Normalize depths
935                    $depth = $end[1];
936
937                    $this->listCalls[] = array('listitem_close',array(),$call[2]);
938
939                    if ( $end[0] == $listType ) {
940                        $this->listCalls[] = array('listitem_open',array($depth-1),$call[2]);
941                        $this->listCalls[] = array('listcontent_open',array(),$call[2]);
942
943                    } else {
944                        // Switching list type...
945                        $this->listCalls[] = array('list'.$end[0].'_close', array(), $call[2]);
946                        $this->listCalls[] = array('list'.$listType.'_open', array(), $call[2]);
947                        $this->listCalls[] = array('listitem_open', array($depth-1), $call[2]);
948                        $this->listCalls[] = array('listcontent_open',array(),$call[2]);
949
950                        array_pop($this->listStack);
951                        $this->listStack[] = array($listType, $depth);
952                    }
953
954                    break;
955
956                // Haven't dropped down far enough yet.... ( $end[1] > $depth )
957                } else {
958
959                    $this->listCalls[] = array('listitem_close',array(),$call[2]);
960                    $this->listCalls[] = array('list'.$end[0].'_close',array(),$call[2]);
961
962                    array_pop($this->listStack);
963
964                }
965
966            }
967
968        }
969    }
970
971    //------------------------------------------------------------------------
972    function listContent($call) {
973        $this->listCalls[] = $call;
974    }
975
976    //------------------------------------------------------------------------
977    function interpretSyntax($match, & $type) {
978        if ( substr($match,-1) == '*' ) {
979            $type = 'u';
980        } else {
981            $type = 'o';
982        }
983        // Is the +1 needed? It used to be count(explode(...))
984        // but I don't think the number is seen outside this handler
985        return substr_count(str_replace("\t",'  ',$match), '  ') + 1;
986    }
987}
988
989//------------------------------------------------------------------------
990class Doku_Handler_Preformatted {
991
992    var $CallWriter;
993
994    var $calls = array();
995    var $pos;
996    var $text ='';
997
998
999
1000    function Doku_Handler_Preformatted(& $CallWriter) {
1001        $this->CallWriter = & $CallWriter;
1002    }
1003
1004    function writeCall($call) {
1005        $this->calls[] = $call;
1006    }
1007
1008    // Probably not needed but just in case...
1009    function writeCalls($calls) {
1010        $this->calls = array_merge($this->calls, $calls);
1011#        $this->CallWriter->writeCalls($this->calls);
1012    }
1013
1014    function finalise() {
1015        $last_call = end($this->calls);
1016        $this->writeCall(array('preformatted_end',array(), $last_call[2]));
1017
1018        $this->process();
1019        $this->CallWriter->finalise();
1020        unset($this->CallWriter);
1021    }
1022
1023    function process() {
1024        foreach ( $this->calls as $call ) {
1025            switch ($call[0]) {
1026                case 'preformatted_start':
1027                    $this->pos = $call[2];
1028                break;
1029                case 'preformatted_newline':
1030                    $this->text .= "\n";
1031                break;
1032                case 'preformatted_content':
1033                    $this->text .= $call[1][0];
1034                break;
1035                case 'preformatted_end':
1036                    if (trim($this->text)) {
1037                      $this->CallWriter->writeCall(array('preformatted',array($this->text),$this->pos));
1038                    }
1039                    // see FS#1699 & FS#1652, add 'eol' instructions to ensure proper triggering of following p_open
1040                    $this->CallWriter->writeCall(array('eol',array(),$this->pos));
1041                    $this->CallWriter->writeCall(array('eol',array(),$this->pos));
1042                break;
1043            }
1044        }
1045    }
1046
1047}
1048
1049//------------------------------------------------------------------------
1050class Doku_Handler_Quote {
1051
1052    var $CallWriter;
1053
1054    var $calls = array();
1055
1056    var $quoteCalls = array();
1057
1058    function Doku_Handler_Quote(& $CallWriter) {
1059        $this->CallWriter = & $CallWriter;
1060    }
1061
1062    function writeCall($call) {
1063        $this->calls[] = $call;
1064    }
1065
1066    // Probably not needed but just in case...
1067    function writeCalls($calls) {
1068        $this->calls = array_merge($this->calls, $calls);
1069    }
1070
1071    function finalise() {
1072        $last_call = end($this->calls);
1073        $this->writeCall(array('quote_end',array(), $last_call[2]));
1074
1075        $this->process();
1076        $this->CallWriter->finalise();
1077        unset($this->CallWriter);
1078    }
1079
1080    function process() {
1081
1082        $quoteDepth = 1;
1083
1084        foreach ( $this->calls as $call ) {
1085            switch ($call[0]) {
1086
1087                case 'quote_start':
1088
1089                    $this->quoteCalls[] = array('quote_open',array(),$call[2]);
1090
1091                case 'quote_newline':
1092
1093                    $quoteLength = $this->getDepth($call[1][0]);
1094
1095                    if ( $quoteLength > $quoteDepth ) {
1096                        $quoteDiff = $quoteLength - $quoteDepth;
1097                        for ( $i = 1; $i <= $quoteDiff; $i++ ) {
1098                            $this->quoteCalls[] = array('quote_open',array(),$call[2]);
1099                        }
1100                    } else if ( $quoteLength < $quoteDepth ) {
1101                        $quoteDiff = $quoteDepth - $quoteLength;
1102                        for ( $i = 1; $i <= $quoteDiff; $i++ ) {
1103                            $this->quoteCalls[] = array('quote_close',array(),$call[2]);
1104                        }
1105                    } else {
1106                        if ($call[0] != 'quote_start') $this->quoteCalls[] = array('linebreak',array(),$call[2]);
1107                    }
1108
1109                    $quoteDepth = $quoteLength;
1110
1111                break;
1112
1113                case 'quote_end':
1114
1115                    if ( $quoteDepth > 1 ) {
1116                        $quoteDiff = $quoteDepth - 1;
1117                        for ( $i = 1; $i <= $quoteDiff; $i++ ) {
1118                            $this->quoteCalls[] = array('quote_close',array(),$call[2]);
1119                        }
1120                    }
1121
1122                    $this->quoteCalls[] = array('quote_close',array(),$call[2]);
1123
1124                    $this->CallWriter->writeCalls($this->quoteCalls);
1125                break;
1126
1127                default:
1128                    $this->quoteCalls[] = $call;
1129                break;
1130            }
1131        }
1132    }
1133
1134    function getDepth($marker) {
1135        preg_match('/>{1,}/', $marker, $matches);
1136        $quoteLength = strlen($matches[0]);
1137        return $quoteLength;
1138    }
1139}
1140
1141//------------------------------------------------------------------------
1142class Doku_Handler_Table {
1143
1144    var $CallWriter;
1145
1146    var $calls = array();
1147    var $tableCalls = array();
1148    var $maxCols = 0;
1149    var $maxRows = 1;
1150    var $currentCols = 0;
1151    var $firstCell = false;
1152    var $lastCellType = 'tablecell';
1153
1154    function Doku_Handler_Table(& $CallWriter) {
1155        $this->CallWriter = & $CallWriter;
1156    }
1157
1158    function writeCall($call) {
1159        $this->calls[] = $call;
1160    }
1161
1162    // Probably not needed but just in case...
1163    function writeCalls($calls) {
1164        $this->calls = array_merge($this->calls, $calls);
1165    }
1166
1167    function finalise() {
1168        $last_call = end($this->calls);
1169        $this->writeCall(array('table_end',array(), $last_call[2]));
1170
1171        $this->process();
1172        $this->CallWriter->finalise();
1173        unset($this->CallWriter);
1174    }
1175
1176    //------------------------------------------------------------------------
1177    function process() {
1178        foreach ( $this->calls as $call ) {
1179            switch ( $call[0] ) {
1180                case 'table_start':
1181                    $this->tableStart($call);
1182                break;
1183                case 'table_row':
1184                    $this->tableRowClose($call);
1185                    $this->tableRowOpen(array('tablerow_open',$call[1],$call[2]));
1186                break;
1187                case 'tableheader':
1188                case 'tablecell':
1189                    $this->tableCell($call);
1190                break;
1191                case 'table_end':
1192                    $this->tableRowClose($call);
1193                    $this->tableEnd($call);
1194                break;
1195                default:
1196                    $this->tableDefault($call);
1197                break;
1198            }
1199        }
1200        $this->CallWriter->writeCalls($this->tableCalls);
1201    }
1202
1203    function tableStart($call) {
1204        $this->tableCalls[] = array('table_open',$call[1],$call[2]);
1205        $this->tableCalls[] = array('tablerow_open',array(),$call[2]);
1206        $this->firstCell = true;
1207    }
1208
1209    function tableEnd($call) {
1210        $this->tableCalls[] = array('table_close',$call[1],$call[2]);
1211        $this->finalizeTable();
1212    }
1213
1214    function tableRowOpen($call) {
1215        $this->tableCalls[] = $call;
1216        $this->currentCols = 0;
1217        $this->firstCell = true;
1218        $this->lastCellType = 'tablecell';
1219        $this->maxRows++;
1220    }
1221
1222    function tableRowClose($call) {
1223        // Strip off final cell opening and anything after it
1224        while ( $discard = array_pop($this->tableCalls ) ) {
1225
1226            if ( $discard[0] == 'tablecell_open' || $discard[0] == 'tableheader_open') {
1227                break;
1228            }
1229        }
1230        $this->tableCalls[] = array('tablerow_close', array(), $call[2]);
1231
1232        if ( $this->currentCols > $this->maxCols ) {
1233            $this->maxCols = $this->currentCols;
1234        }
1235    }
1236
1237    function tableCell($call) {
1238        if ( !$this->firstCell ) {
1239
1240            // Increase the span
1241            $lastCall = end($this->tableCalls);
1242
1243            // A cell call which follows an open cell means an empty cell so span
1244            if ( $lastCall[0] == 'tablecell_open' || $lastCall[0] == 'tableheader_open' ) {
1245                 $this->tableCalls[] = array('colspan',array(),$call[2]);
1246
1247            }
1248
1249            $this->tableCalls[] = array($this->lastCellType.'_close',array(),$call[2]);
1250            $this->tableCalls[] = array($call[0].'_open',array(1,NULL,1),$call[2]);
1251            $this->lastCellType = $call[0];
1252
1253        } else {
1254
1255            $this->tableCalls[] = array($call[0].'_open',array(1,NULL,1),$call[2]);
1256            $this->lastCellType = $call[0];
1257            $this->firstCell = false;
1258
1259        }
1260
1261        $this->currentCols++;
1262    }
1263
1264    function tableDefault($call) {
1265        $this->tableCalls[] = $call;
1266    }
1267
1268    function finalizeTable() {
1269
1270        // Add the max cols and rows to the table opening
1271        if ( $this->tableCalls[0][0] == 'table_open' ) {
1272            // Adjust to num cols not num col delimeters
1273            $this->tableCalls[0][1][] = $this->maxCols - 1;
1274            $this->tableCalls[0][1][] = $this->maxRows;
1275            $this->tableCalls[0][1][] = array_shift($this->tableCalls[0][1]);
1276        } else {
1277            trigger_error('First element in table call list is not table_open');
1278        }
1279
1280        $lastRow = 0;
1281        $lastCell = 0;
1282        $cellKey = array();
1283        $toDelete = array();
1284
1285        // Look for the colspan elements and increment the colspan on the
1286        // previous non-empty opening cell. Once done, delete all the cells
1287        // that contain colspans
1288        for ($key = 0 ; $key < count($this->tableCalls) ; ++$key) {
1289            $call = $this->tableCalls[$key];
1290
1291            switch ($call[0]) {
1292            case 'tablerow_open':
1293
1294                $lastRow++;
1295                $lastCell = 0;
1296                break;
1297
1298            case 'tablecell_open':
1299            case 'tableheader_open':
1300
1301                $lastCell++;
1302                $cellKey[$lastRow][$lastCell] = $key;
1303                break;
1304
1305            case 'table_align':
1306
1307                $prev = in_array($this->tableCalls[$key-1][0], array('tablecell_open', 'tableheader_open'));
1308                $next = in_array($this->tableCalls[$key+1][0], array('tablecell_close', 'tableheader_close'));
1309                // If the cell is empty, align left
1310                if ($prev && $next) {
1311                    $this->tableCalls[$key-1][1][1] = 'left';
1312
1313                // If the previous element was a cell open, align right
1314                } elseif ($prev) {
1315                    $this->tableCalls[$key-1][1][1] = 'right';
1316
1317                // If the next element is the close of an element, align either center or left
1318                } elseif ( $next) {
1319                    if ( $this->tableCalls[$cellKey[$lastRow][$lastCell]][1][1] == 'right' ) {
1320                        $this->tableCalls[$cellKey[$lastRow][$lastCell]][1][1] = 'center';
1321                    } else {
1322                        $this->tableCalls[$cellKey[$lastRow][$lastCell]][1][1] = 'left';
1323                    }
1324
1325                }
1326
1327                // Now convert the whitespace back to cdata
1328                $this->tableCalls[$key][0] = 'cdata';
1329                break;
1330
1331            case 'colspan':
1332
1333                $this->tableCalls[$key-1][1][0] = false;
1334
1335                for($i = $key-2; $i >= $cellKey[$lastRow][1]; $i--) {
1336
1337                    if ( $this->tableCalls[$i][0] == 'tablecell_open' || $this->tableCalls[$i][0] == 'tableheader_open' ) {
1338
1339                        if ( false !== $this->tableCalls[$i][1][0] ) {
1340                            $this->tableCalls[$i][1][0]++;
1341                            break;
1342                        }
1343
1344
1345                    }
1346                }
1347
1348                $toDelete[] = $key-1;
1349                $toDelete[] = $key;
1350                $toDelete[] = $key+1;
1351                break;
1352
1353            case 'rowspan':
1354
1355                if ( $this->tableCalls[$key-1][0] == 'cdata' ) {
1356                    // ignore rowspan if previous call was cdata (text mixed with :::) we don't have to check next call as that wont match regex
1357                    $this->tableCalls[$key][0] = 'cdata';
1358
1359                } else {
1360
1361                    $spanning_cell = null;
1362                    for($i = $lastRow-1; $i > 0; $i--) {
1363
1364                        if ( $this->tableCalls[$cellKey[$i][$lastCell]][0] == 'tablecell_open' || $this->tableCalls[$cellKey[$i][$lastCell]][0] == 'tableheader_open' ) {
1365
1366                            if ($this->tableCalls[$cellKey[$i][$lastCell]][1][2] >= $lastRow - $i) {
1367                                $spanning_cell = $i;
1368                                break;
1369                            }
1370
1371
1372                        }
1373                    }
1374                    if (is_null($spanning_cell)) {
1375                        // No spanning cell found, so convert this cell to
1376                        // an empty one to avoid broken tables
1377                        $this->tableCells[$key][1][1] = '';
1378                        continue;
1379                    }
1380                    $this->tableCalls[$cellKey[$spanning_cell][$lastCell]][1][2]++;
1381
1382                    $this->tableCalls[$key-1][1][2] = false;
1383
1384                    $toDelete[] = $key-1;
1385                    $toDelete[] = $key;
1386                    $toDelete[] = $key+1;
1387                }
1388                break;
1389
1390            case 'tablerow_close':
1391
1392                // Fix broken tables by adding missing cells
1393                while (++$lastCell < $this->maxCols) {
1394                    array_splice($this->tableCalls, $key, 0, array(
1395                           array('tablecell_open', array(1, null, 1), $call[2]),
1396                           array('cdata', array(''), $call[2]),
1397                           array('tablecell_close', array(), $call[2])));
1398                    $key += 3;
1399                }
1400
1401                break;
1402
1403            }
1404        }
1405
1406
1407        // condense cdata
1408        $cnt = count($this->tableCalls);
1409        for( $key = 0; $key < $cnt; $key++){
1410            if($this->tableCalls[$key][0] == 'cdata'){
1411                $ckey = $key;
1412                $key++;
1413                while($this->tableCalls[$key][0] == 'cdata'){
1414                    $this->tableCalls[$ckey][1][0] .= $this->tableCalls[$key][1][0];
1415                    $toDelete[] = $key;
1416                    $key++;
1417                }
1418                continue;
1419            }
1420        }
1421
1422        foreach ( $toDelete as $delete ) {
1423            unset($this->tableCalls[$delete]);
1424        }
1425        $this->tableCalls = array_values($this->tableCalls);
1426    }
1427}
1428
1429
1430/**
1431 * Handler for paragraphs
1432 *
1433 * @author Harry Fuecks <hfuecks@gmail.com>
1434 */
1435class Doku_Handler_Block {
1436    var $calls = array();
1437    var $skipEol = false;
1438
1439    // Blocks these should not be inside paragraphs
1440    var $blockOpen = array(
1441            'header',
1442            'listu_open','listo_open','listitem_open','listcontent_open',
1443            'table_open','tablerow_open','tablecell_open','tableheader_open',
1444            'quote_open',
1445            'code','file','hr','preformatted','rss',
1446            'htmlblock','phpblock',
1447            'footnote_open',
1448        );
1449
1450    var $blockClose = array(
1451            'header',
1452            'listu_close','listo_close','listitem_close','listcontent_close',
1453            'table_close','tablerow_close','tablecell_close','tableheader_close',
1454            'quote_close',
1455            'code','file','hr','preformatted','rss',
1456            'htmlblock','phpblock',
1457            'footnote_close',
1458        );
1459
1460    // Stacks can contain paragraphs
1461    var $stackOpen = array(
1462        'section_open',
1463        );
1464
1465    var $stackClose = array(
1466        'section_close',
1467        );
1468
1469
1470    /**
1471     * Constructor. Adds loaded syntax plugins to the block and stack
1472     * arrays
1473     *
1474     * @author Andreas Gohr <andi@splitbrain.org>
1475     */
1476    function Doku_Handler_Block(){
1477        global $DOKU_PLUGINS;
1478        //check if syntax plugins were loaded
1479        if(empty($DOKU_PLUGINS['syntax'])) return;
1480        foreach($DOKU_PLUGINS['syntax'] as $n => $p){
1481            $ptype = $p->getPType();
1482            if($ptype == 'block'){
1483                $this->blockOpen[]  = 'plugin_'.$n;
1484                $this->blockClose[] = 'plugin_'.$n;
1485            }elseif($ptype == 'stack'){
1486                $this->stackOpen[]  = 'plugin_'.$n;
1487                $this->stackClose[] = 'plugin_'.$n;
1488            }
1489        }
1490    }
1491
1492    function openParagraph($pos){
1493        if ($this->inParagraph) return;
1494        $this->calls[] = array('p_open',array(), $pos);
1495        $this->inParagraph = true;
1496        $this->skipEol = true;
1497    }
1498
1499    /**
1500     * Close a paragraph if needed
1501     *
1502     * This function makes sure there are no empty paragraphs on the stack
1503     *
1504     * @author Andreas Gohr <andi@splitbrain.org>
1505     */
1506    function closeParagraph($pos){
1507        if (!$this->inParagraph) return;
1508        // look back if there was any content - we don't want empty paragraphs
1509        $content = '';
1510        $ccount = count($this->calls);
1511        for($i=$ccount-1; $i>=0; $i--){
1512            if($this->calls[$i][0] == 'p_open'){
1513                break;
1514            }elseif($this->calls[$i][0] == 'cdata'){
1515                $content .= $this->calls[$i][1][0];
1516            }else{
1517                $content = 'found markup';
1518                break;
1519            }
1520        }
1521
1522        if(trim($content)==''){
1523            //remove the whole paragraph
1524            //array_splice($this->calls,$i); // <- this is much slower than the loop below
1525            for($x=$ccount; $x>$i; $x--) array_pop($this->calls);
1526        }else{
1527            // remove ending linebreaks in the paragraph
1528            $i=count($this->calls)-1;
1529            if ($this->calls[$i][0] == 'cdata') $this->calls[$i][1][0] = rtrim($this->calls[$i][1][0],DOKU_PARSER_EOL);
1530            $this->calls[] = array('p_close',array(), $pos);
1531        }
1532
1533        $this->inParagraph = false;
1534        $this->skipEol = true;
1535    }
1536
1537    function addCall($call) {
1538        $key = count($this->calls);
1539        if ($key and ($call[0] == 'cdata') and ($this->calls[$key-1][0] == 'cdata')) {
1540            $this->calls[$key-1][1][0] .= $call[1][0];
1541        } else {
1542            $this->calls[] = $call;
1543        }
1544    }
1545
1546    // simple version of addCall, without checking cdata
1547    function storeCall($call) {
1548        $this->calls[] = $call;
1549    }
1550
1551    /**
1552     * Processes the whole instruction stack to open and close paragraphs
1553     *
1554     * @author Harry Fuecks <hfuecks@gmail.com>
1555     * @author Andreas Gohr <andi@splitbrain.org>
1556     */
1557    function process($calls) {
1558        // open first paragraph
1559        $this->openParagraph(0);
1560        foreach ( $calls as $key => $call ) {
1561            $cname = $call[0];
1562            if ($cname == 'plugin') {
1563                $cname='plugin_'.$call[1][0];
1564                $plugin = true;
1565                $plugin_open = (($call[1][2] == DOKU_LEXER_ENTER) || ($call[1][2] == DOKU_LEXER_SPECIAL));
1566                $plugin_close = (($call[1][2] == DOKU_LEXER_EXIT) || ($call[1][2] == DOKU_LEXER_SPECIAL));
1567            } else {
1568                $plugin = false;
1569            }
1570            /* stack */
1571            if ( in_array($cname,$this->stackClose ) && (!$plugin || $plugin_close)) {
1572                $this->closeParagraph($call[2]);
1573                $this->storeCall($call);
1574                $this->openParagraph($call[2]);
1575                continue;
1576            }
1577            if ( in_array($cname,$this->stackOpen ) && (!$plugin || $plugin_open) ) {
1578                $this->closeParagraph($call[2]);
1579                $this->storeCall($call);
1580                $this->openParagraph($call[2]);
1581                continue;
1582            }
1583            /* block */
1584            // If it's a substition it opens and closes at the same call.
1585            // To make sure next paragraph is correctly started, let close go first.
1586            if ( in_array($cname, $this->blockClose) && (!$plugin || $plugin_close)) {
1587                $this->closeParagraph($call[2]);
1588                $this->storeCall($call);
1589                $this->openParagraph($call[2]);
1590                continue;
1591            }
1592            if ( in_array($cname, $this->blockOpen) && (!$plugin || $plugin_open)) {
1593                $this->closeParagraph($call[2]);
1594                $this->storeCall($call);
1595                continue;
1596            }
1597            /* eol */
1598            if ( $cname == 'eol' ) {
1599                // Check this isn't an eol instruction to skip...
1600                if ( !$this->skipEol ) {
1601                    // Next is EOL => double eol => mark as paragraph
1602                    if ( isset($calls[$key+1]) && $calls[$key+1][0] == 'eol' ) {
1603                        $this->closeParagraph($call[2]);
1604                        $this->openParagraph($call[2]);
1605                    } else {
1606                        //if this is just a single eol make a space from it
1607                        $this->addCall(array('cdata',array(DOKU_PARSER_EOL), $call[2]));
1608                    }
1609                }
1610                continue;
1611            }
1612            /* normal */
1613            $this->addCall($call);
1614            $this->skipEol = false;
1615        }
1616        // close last paragraph
1617        $call = end($this->calls);
1618        $this->closeParagraph($call[2]);
1619        return $this->calls;
1620    }
1621}
1622
1623//Setup VIM: ex: et ts=4 :
1624