xref: /dokuwiki/inc/parser/xhtml.php (revision 3afe5d1c3420a012163ab6794ff63f68acf37c5e) 
1<?php
2/**
3 * Renderer for XHTML output
4 *
5 * @author Harry Fuecks <hfuecks@gmail.com>
6 * @author Andreas Gohr <andi@splitbrain.org>
7 */
8
9if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
10
11if ( !defined('DOKU_LF') ) {
12    // Some whitespace to help View > Source
13    define ('DOKU_LF',"\n");
14}
15
16if ( !defined('DOKU_TAB') ) {
17    // Some whitespace to help View > Source
18    define ('DOKU_TAB',"\t");
19}
20
21require_once DOKU_INC . 'inc/parser/renderer.php';
22require_once DOKU_INC . 'inc/html.php';
23
24/**
25 * The Renderer
26 */
27class Doku_Renderer_xhtml extends Doku_Renderer {
28
29    // @access public
30    var $doc = '';        // will contain the whole document
31    var $toc = array();   // will contain the Table of Contents
32
33
34    var $headers = array();
35
36    var $footnotes = array();
37
38    var $acronyms = array();
39    var $smileys = array();
40    var $badwords = array();
41    var $entities = array();
42    var $interwiki = array();
43
44    var $lastsec = 0;
45
46    var $store = '';
47
48    function document_start() {
49        //reset some internals
50        $this->toc     = array();
51        $this->headers = array();
52    }
53
54    function document_end() {
55        if ( count ($this->footnotes) > 0 ) {
56            $this->doc .= '<div class="footnotes">'.DOKU_LF;
57
58            $id = 0;
59            foreach ( $this->footnotes as $footnote ) {
60                $id++;   // the number of the current footnote
61
62                // check its not a placeholder that indicates actual footnote text is elsewhere
63                if (substr($footnote, 0, 5) != "@@FNT") {
64
65                    // open the footnote and set the anchor and backlink
66                    $this->doc .= '<div class="fn">';
67                    $this->doc .= '<a href="#fnt__'.$id.'" id="fn__'.$id.'" name="fn__'.$id.'" class="fn_bot">';
68                    $this->doc .= $id.')</a> '.DOKU_LF;
69
70                    // get any other footnotes that use the same markup
71                    $alt = array_keys($this->footnotes, "@@FNT$id");
72
73                    if (count($alt)) {
74                      foreach ($alt as $ref) {
75                        // set anchor and backlink for the other footnotes
76                        $this->doc .= ', <a href="#fnt__'.($ref+1).'" id="fn__'.($ref+1).'" name="fn__'.($ref+1).'" class="fn_bot">';
77                        $this->doc .= ($ref+1).')</a> '.DOKU_LF;
78                      }
79                    }
80
81                    // add footnote markup and close this footnote
82                    $this->doc .= $footnote;
83                    $this->doc .= '</div>' . DOKU_LF;
84                }
85            }
86            $this->doc .= '</div>'.DOKU_LF;
87        }
88
89        // prepend the TOC
90        if($this->info['toc']){
91            $this->doc = $this->render_TOC().$this->doc;
92        }
93
94        // make sure there are no empty paragraphs
95        $this->doc = preg_replace('#<p>\s*</p>#','',$this->doc);
96    }
97
98    /**
99     * Return the TOC rendered to XHTML
100     *
101     * @author Andreas Gohr <andi@splitbrain.org>
102     */
103    function render_TOC(){
104        if(count($this->toc) < 3) return '';
105        global $lang;
106        $out  = '<div class="toc">'.DOKU_LF;
107        $out .= '<div class="tocheader toctoggle" id="toc__header">';
108        $out .= $lang['toc'];
109        $out .= '</div>'.DOKU_LF;
110        $out .= '<div id="toc__inside">'.DOKU_LF;
111        $out .= html_buildlist($this->toc,'toc',array($this,'_tocitem'));
112        $out .= '</div>'.DOKU_LF.'</div>'.DOKU_LF;
113        return $out;
114    }
115
116    /**
117     * Callback for html_buildlist
118     */
119    function _tocitem($item){
120        return '<span class="li"><a href="#'.$item['hid'].'" class="toc">'.
121               $this->_xmlEntities($item['title']).'</a></span>';
122    }
123
124    function header($text, $level, $pos) {
125        global $conf;
126
127        // create a unique header id
128        $hid = $this->_headerToLink($text,'true');
129
130        //handle TOC
131        if($level >= $conf['toptoclevel'] && $level <= $conf['maxtoclevel']){
132            // the TOC is one of our standard ul list arrays ;-)
133            $this->toc[] = array( 'hid'   => $hid,
134                                  'title' => $text,
135                                  'type'  => 'ul',
136                                  'level' => $level-$conf['toptoclevel']+1);
137        }
138
139        // write the header
140        $this->doc .= DOKU_LF.'<h'.$level.'><a name="'.$hid.'" id="'.$hid.'">';
141        $this->doc .= $this->_xmlEntities($text);
142        $this->doc .= "</a></h$level>".DOKU_LF;
143    }
144
145     /**
146     * Section edit marker is replaced by an edit button when
147     * the page is editable. Replacement done in 'inc/html.php#html_secedit'
148     *
149     * @author Andreas Gohr <andi@splitbrain.org>
150     * @author Ben Coburn   <btcoburn@silicodon.net>
151     */
152    function section_edit($start, $end, $level, $name) {
153        global $conf;
154
155        if ($start!=-1 && $level<=$conf['maxseclevel']) {
156            $name = str_replace('"', '', $name);
157            $this->doc .= '<!-- SECTION "'.$name.'" ['.$start.'-'.(($end===0)?'':$end).'] -->';
158        }
159    }
160
161    function section_open($level) {
162        $this->doc .= "<div class=\"level$level\">".DOKU_LF;
163    }
164
165    function section_close() {
166        $this->doc .= DOKU_LF.'</div>'.DOKU_LF;
167    }
168
169    function cdata($text) {
170        $this->doc .= $this->_xmlEntities($text);
171    }
172
173    function p_open() {
174        $this->doc .= DOKU_LF.'<p>'.DOKU_LF;
175    }
176
177    function p_close() {
178        $this->doc .= DOKU_LF.'</p>'.DOKU_LF;
179    }
180
181    function linebreak() {
182        $this->doc .= '<br/>'.DOKU_LF;
183    }
184
185    function hr() {
186        $this->doc .= '<hr />'.DOKU_LF;
187    }
188
189    function strong_open() {
190        $this->doc .= '<strong>';
191    }
192
193    function strong_close() {
194        $this->doc .= '</strong>';
195    }
196
197    function emphasis_open() {
198        $this->doc .= '<em>';
199    }
200
201    function emphasis_close() {
202        $this->doc .= '</em>';
203    }
204
205    function underline_open() {
206        $this->doc .= '<em class="u">';
207    }
208
209    function underline_close() {
210        $this->doc .= '</em>';
211    }
212
213    function monospace_open() {
214        $this->doc .= '<code>';
215    }
216
217    function monospace_close() {
218        $this->doc .= '</code>';
219    }
220
221    function subscript_open() {
222        $this->doc .= '<sub>';
223    }
224
225    function subscript_close() {
226        $this->doc .= '</sub>';
227    }
228
229    function superscript_open() {
230        $this->doc .= '<sup>';
231    }
232
233    function superscript_close() {
234        $this->doc .= '</sup>';
235    }
236
237    function deleted_open() {
238        $this->doc .= '<del>';
239    }
240
241    function deleted_close() {
242        $this->doc .= '</del>';
243    }
244
245    /**
246     * Callback for footnote start syntax
247     *
248     * All following content will go to the footnote instead of
249     * the document. To achieve this the previous rendered content
250     * is moved to $store and $doc is cleared
251     *
252     * @author Andreas Gohr <andi@splitbrain.org>
253     */
254    function footnote_open() {
255
256        // move current content to store and record footnote
257        $this->store = $this->doc;
258        $this->doc   = '';
259    }
260
261    /**
262     * Callback for footnote end syntax
263     *
264     * All rendered content is moved to the $footnotes array and the old
265     * content is restored from $store again
266     *
267     * @author Andreas Gohr
268     */
269    function footnote_close() {
270
271        // recover footnote into the stack and restore old content
272        $footnote = $this->doc;
273        $this->doc = $this->store;
274        $this->store = '';
275
276        // check to see if this footnote has been seen before
277        $i = array_search($footnote, $this->footnotes);
278
279        if ($i === false) {
280            // its a new footnote, add it to the $footnotes array
281            $id = count($this->footnotes)+1;
282            $this->footnotes[count($this->footnotes)] = $footnote;
283        } else {
284            // seen this one before, translate the index to an id and save a placeholder
285            $i++;
286            $id = count($this->footnotes)+1;
287            $this->footnotes[count($this->footnotes)] = "@@FNT".($i);
288        }
289
290        // output the footnote reference and link, incl. onmouseover for insitu footnote popup
291        $this->doc .= '<a href="#fn__'.$id.'" name="fnt__'.$id.'" id="fnt__'.$id.'" class="fn_top" onmouseover="fnt(\''.$id.'\', this, event);">'.$id.')</a>';
292    }
293
294    function listu_open() {
295        $this->doc .= '<ul>'.DOKU_LF;
296    }
297
298    function listu_close() {
299        $this->doc .= '</ul>'.DOKU_LF;
300    }
301
302    function listo_open() {
303        $this->doc .= '<ol>'.DOKU_LF;
304    }
305
306    function listo_close() {
307        $this->doc .= '</ol>'.DOKU_LF;
308    }
309
310    function listitem_open($level) {
311        $this->doc .= '<li class="level'.$level.'">';
312    }
313
314    function listitem_close() {
315        $this->doc .= '</li>'.DOKU_LF;
316    }
317
318    function listcontent_open() {
319        $this->doc .= '<div class="li">';
320    }
321
322    function listcontent_close() {
323        $this->doc .= '</div>'.DOKU_LF;
324    }
325
326    function unformatted($text) {
327        $this->doc .= $this->_xmlEntities($text);
328    }
329
330    /**
331     * Execute PHP code if allowed
332     *
333     * @author Andreas Gohr <andi@splitbrain.org>
334     */
335    function php($text) {
336        global $conf;
337        if($conf['phpok']){
338            ob_start();
339            eval($text);
340            $this->doc .= ob_get_contents();
341            ob_end_clean();
342        }else{
343            $this->file($text);
344        }
345    }
346
347    /**
348     * Insert HTML if allowed
349     *
350     * @author Andreas Gohr <andi@splitbrain.org>
351     */
352    function html($text) {
353        global $conf;
354        if($conf['htmlok']){
355          $this->doc .= $text;
356        }else{
357          $this->file($text);
358        }
359    }
360
361    function preformatted($text) {
362        $this->doc .= '<pre class="code">' . $this->_xmlEntities($text) . '</pre>'. DOKU_LF;
363    }
364
365    function file($text) {
366        $this->doc .= '<pre class="file">' . $this->_xmlEntities($text). '</pre>'. DOKU_LF;
367    }
368
369    function quote_open() {
370        $this->doc .= '<blockquote><div class="no">'.DOKU_LF;
371    }
372
373    function quote_close() {
374        $this->doc .= '</div></blockquote>'.DOKU_LF;
375    }
376
377    /**
378     * Callback for code text
379     *
380     * Uses GeSHi to highlight language syntax
381     *
382     * @author Andreas Gohr <andi@splitbrain.org>
383     */
384    function code($text, $language = NULL) {
385        global $conf;
386
387        if ( is_null($language) ) {
388            $this->preformatted($text);
389        } else {
390            //strip leading and trailing blank line
391            $text = preg_replace('/^\s*?\n/','',$text);
392            $text = preg_replace('/\s*?\n$/','',$text);
393            $this->doc .= p_xhtml_cached_geshi($text, $language);
394        }
395    }
396
397    function acronym($acronym) {
398
399        if ( array_key_exists($acronym, $this->acronyms) ) {
400
401            $title = $this->_xmlEntities($this->acronyms[$acronym]);
402
403            $this->doc .= '<acronym title="'.$title
404                .'">'.$this->_xmlEntities($acronym).'</acronym>';
405
406        } else {
407            $this->doc .= $this->_xmlEntities($acronym);
408        }
409    }
410
411    function smiley($smiley) {
412        if ( array_key_exists($smiley, $this->smileys) ) {
413            $title = $this->_xmlEntities($this->smileys[$smiley]);
414            $this->doc .= '<img src="'.DOKU_BASE.'lib/images/smileys/'.$this->smileys[$smiley].
415                '" class="middle" alt="'.
416                    $this->_xmlEntities($smiley).'" />';
417        } else {
418            $this->doc .= $this->_xmlEntities($smiley);
419        }
420    }
421
422    /*
423    * not used
424    function wordblock($word) {
425        if ( array_key_exists($word, $this->badwords) ) {
426            $this->doc .= '** BLEEP **';
427        } else {
428            $this->doc .= $this->_xmlEntities($word);
429        }
430    }
431    */
432
433    function entity($entity) {
434        if ( array_key_exists($entity, $this->entities) ) {
435            $this->doc .= $this->entities[$entity];
436        } else {
437            $this->doc .= $this->_xmlEntities($entity);
438        }
439    }
440
441    function multiplyentity($x, $y) {
442        $this->doc .= "$x&times;$y";
443    }
444
445    function singlequoteopening() {
446        $this->doc .= "&lsquo;";
447    }
448
449    function singlequoteclosing() {
450        $this->doc .= "&rsquo;";
451    }
452
453    function doublequoteopening() {
454        $this->doc .= "&ldquo;";
455    }
456
457    function doublequoteclosing() {
458        $this->doc .= "&rdquo;";
459    }
460
461    /**
462    */
463    function camelcaselink($link) {
464      $this->internallink($link,$link);
465    }
466
467
468    function locallink($hash, $name = NULL){
469        global $ID;
470        $name  = $this->_getLinkTitle($name, $hash, $isImage);
471        $hash  = $this->_headerToLink($hash);
472        $title = $ID.' &crarr;';
473        $this->doc .= '<a href="#'.$hash.'" title="'.$title.'" class="wikilink1">';
474        $this->doc .= $name;
475        $this->doc .= '</a>';
476    }
477
478    /**
479     * Render an internal Wiki Link
480     *
481     * $search and $returnonly are not for the renderer but are used
482     * elsewhere - no need to implement them in other renderers
483     *
484     * @author Andreas Gohr <andi@splitbrain.org>
485     */
486    function internallink($id, $name = NULL, $search=NULL,$returnonly=false) {
487        global $conf;
488        global $ID;
489        // default name is based on $id as given
490        $default = $this->_simpleTitle($id);
491        // now first resolve and clean up the $id
492        resolve_pageid(getNS($ID),$id,$exists);
493        $name = $this->_getLinkTitle($name, $default, $isImage, $id);
494        if ( !$isImage ) {
495            if ( $exists ) {
496                $class='wikilink1';
497            } else {
498                $class='wikilink2';
499            }
500        } else {
501            $class='media';
502        }
503
504        //keep hash anchor
505        list($id,$hash) = explode('#',$id,2);
506
507        //prepare for formating
508        $link['target'] = $conf['target']['wiki'];
509        $link['style']  = '';
510        $link['pre']    = '';
511        $link['suf']    = '';
512        // highlight link to current page
513        if ($id == $ID) {
514            $link['pre']    = '<span class="curid">';
515            $link['suf']    = '</span>';
516        }
517        $link['more']   = '';
518        $link['class']  = $class;
519        $link['url']    = wl($id);
520        $link['name']   = $name;
521        $link['title']  = $id;
522        //add search string
523        if($search){
524            ($conf['userewrite']) ? $link['url'].='?s=' : $link['url'].='&amp;s=';
525            $link['url'] .= rawurlencode($search);
526        }
527
528        //keep hash
529        if($hash) $link['url'].='#'.$hash;
530
531        //output formatted
532        if($returnonly){
533            return $this->_formatLink($link);
534        }else{
535            $this->doc .= $this->_formatLink($link);
536        }
537    }
538
539    function externallink($url, $name = NULL) {
540        global $conf;
541
542        $name = $this->_getLinkTitle($name, $url, $isImage);
543
544        // add protocol on simple short URLs
545        if(substr($url,0,3) == 'ftp' && (substr($url,0,6) != 'ftp://')) $url = 'ftp://'.$url;
546        if(substr($url,0,3) == 'www') $url = 'http://'.$url;
547
548        if ( !$isImage ) {
549            $class='urlextern';
550        } else {
551            $class='media';
552        }
553
554        //prepare for formating
555        $link['target'] = $conf['target']['extern'];
556        $link['style']  = '';
557        $link['pre']    = '';
558        $link['suf']    = '';
559        $link['more']   = '';
560        $link['class']  = $class;
561        $link['url']    = $url;
562
563        $link['name']   = $name;
564        $link['title']  = $this->_xmlEntities($url);
565        if($conf['relnofollow']) $link['more'] .= ' rel="nofollow"';
566
567        //output formatted
568        $this->doc .= $this->_formatLink($link);
569    }
570
571    /**
572    */
573    function interwikilink($match, $name = NULL, $wikiName, $wikiUri) {
574        global $conf;
575
576        $link = array();
577        $link['target'] = $conf['target']['interwiki'];
578        $link['pre']    = '';
579        $link['suf']    = '';
580        $link['more']   = '';
581        $link['name']   = $this->_getLinkTitle($name, $wikiUri, $isImage);
582
583        //get interwiki URL
584        if ( isset($this->interwiki[$wikiName]) ) {
585            $url = $this->interwiki[$wikiName];
586        } else {
587            // Default to Google I'm feeling lucky
588            $url = 'http://www.google.com/search?q={URL}&amp;btnI=lucky';
589            $wikiName = 'go';
590        }
591
592        if ( !$isImage ) {
593            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$wikiName);
594            $link['class'] = "interwiki iw_$class";
595        } else {
596            $link['class'] = 'media';
597        }
598
599        //do we stay at the same server? Use local target
600        if( strpos($url,DOKU_URL) === 0 ){
601            $link['target'] = $conf['target']['wiki'];
602        }
603
604        //split into hash and url part
605        list($wikiUri,$hash) = explode('#',$wikiUri,2);
606
607        //replace placeholder
608        if(preg_match('#\{(URL|NAME|SCHEME|HOST|PORT|PATH|QUERY)\}#',$url)){
609            //use placeholders
610            $url = str_replace('{URL}',rawurlencode($wikiUri),$url);
611            $url = str_replace('{NAME}',$wikiUri,$url);
612            $parsed = parse_url($wikiUri);
613            if(!$parsed['port']) $parsed['port'] = 80;
614            $url = str_replace('{SCHEME}',$parsed['scheme'],$url);
615            $url = str_replace('{HOST}',$parsed['host'],$url);
616            $url = str_replace('{PORT}',$parsed['port'],$url);
617            $url = str_replace('{PATH}',$parsed['path'],$url);
618            $url = str_replace('{QUERY}',$parsed['query'],$url);
619            $link['url'] = $url;
620        }else{
621            //default
622            $link['url'] = $url.rawurlencode($wikiUri);
623        }
624        if($hash) $link['url'] .= '#'.rawurlencode($hash);
625
626        $link['title'] = htmlspecialchars($link['url']);
627
628        //output formatted
629        $this->doc .= $this->_formatLink($link);
630    }
631
632    /**
633     */
634    function windowssharelink($url, $name = NULL) {
635        global $conf;
636        global $lang;
637        //simple setup
638        $link['target'] = $conf['target']['windows'];
639        $link['pre']    = '';
640        $link['suf']   = '';
641        $link['style']  = '';
642        //Display error on browsers other than IE
643        $link['more'] = 'onclick="if(document.all == null){alert(\''.
644                        $this->_xmlEntities($lang['nosmblinks'],ENT_QUOTES).
645                        '\');}" onkeypress="if(document.all == null){alert(\''.
646                        $this->_xmlEntities($lang['nosmblinks'],ENT_QUOTES).'\');}"';
647
648        $link['name'] = $this->_getLinkTitle($name, $url, $isImage);
649        if ( !$isImage ) {
650            $link['class'] = 'windows';
651        } else {
652            $link['class'] = 'media';
653        }
654
655
656        $link['title'] = $this->_xmlEntities($url);
657        $url = str_replace('\\','/',$url);
658        $url = 'file:///'.$url;
659        $link['url'] = $url;
660
661        //output formatted
662        $this->doc .= $this->_formatLink($link);
663    }
664
665    function emaillink($address, $name = NULL) {
666        global $conf;
667        //simple setup
668        $link = array();
669        $link['target'] = '';
670        $link['pre']    = '';
671        $link['suf']   = '';
672        $link['style']  = '';
673        $link['more']   = '';
674
675        $name = $this->_getLinkTitle($name, $address, $isImage);
676        if ( !$isImage ) {
677            $link['class']='mail JSnocheck';
678        } else {
679            $link['class']='media JSnocheck';
680        }
681
682        $address = $this->_xmlEntities($address);
683        $address = obfuscate($address);
684        $title   = $address;
685
686        if(empty($name)){
687            $name = $address;
688        }
689#elseif($isImage{
690#            $name = $this->_xmlEntities($name);
691#        }
692
693        if($conf['mailguard'] == 'visible') $address = rawurlencode($address);
694
695        $link['url']   = 'mailto:'.$address;
696        $link['name']  = $name;
697        $link['title'] = $title;
698
699        //output formatted
700        $this->doc .= $this->_formatLink($link);
701    }
702
703    function internalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
704                            $height=NULL, $cache=NULL, $linking=NULL) {
705        global $conf;
706        global $ID;
707        resolve_mediaid(getNS($ID),$src, $exists);
708
709        $link = array();
710        $link['class']  = 'media';
711        $link['style']  = '';
712        $link['pre']    = '';
713        $link['suf']    = '';
714        $link['more']   = '';
715        $link['target'] = $conf['target']['media'];
716        $noLink = false;
717
718        $link['title']  = $this->_xmlEntities($src);
719        list($ext,$mime) = mimetype($src);
720        if(substr($mime,0,5) == 'image'){
721             $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),($linking=='direct'));
722         }elseif($mime == 'application/x-shockwave-flash'){
723             // don't link flash movies
724             $noLink = TRUE;
725         }else{
726             // add file icons
727             $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
728             $link['class'] .= ' mediafile mf_'.$class;
729             $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),true);
730         }
731         $link['name']   = $this->_media ($src, $title, $align, $width, $height, $cache);
732
733         //output formatted
734         if ($linking == 'nolink' || $noLink) $this->doc .= $link['name'];
735         else $this->doc .= $this->_formatLink($link);
736    }
737
738    /**
739     * @todo don't add link for flash
740     */
741    function externalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
742                            $height=NULL, $cache=NULL, $linking=NULL) {
743        global $conf;
744
745        $link = array();
746        $link['class']  = 'media';
747        $link['style']  = '';
748        $link['pre']    = '';
749        $link['suf']    = '';
750        $link['more']   = '';
751        $link['target'] = $conf['target']['media'];
752
753        $link['title']  = $this->_xmlEntities($src);
754        $link['url']    = ml($src,array('cache'=>$cache));
755        $link['name']   = $this->_media ($src, $title, $align, $width, $height, $cache);
756        $noLink = false;
757
758        list($ext,$mime) = mimetype($src);
759        if(substr($mime,0,5) == 'image'){
760             // link only jpeg images
761             // if ($ext != 'jpg' && $ext != 'jpeg') $noLink = TRUE;
762        }elseif($mime == 'application/x-shockwave-flash'){
763             // don't link flash movies
764             $noLink = TRUE;
765        }else{
766             // add file icons
767             $link['class'] .= ' mediafile mf_'.$ext;
768         }
769
770        //output formatted
771        if ($linking == 'nolink' || $noLink) $this->doc .= $link['name'];
772        else $this->doc .= $this->_formatLink($link);
773    }
774
775    /**
776     * Renders an RSS feed
777     *
778     * @author Andreas Gohr <andi@splitbrain.org>
779     */
780    function rss ($url,$params){
781        global $lang;
782        global $conf;
783
784        require_once(DOKU_INC.'inc/FeedParser.php');
785        $feed = new FeedParser();
786        $feed->feed_url($url);
787
788        //disable warning while fetching
789        if (!defined('DOKU_E_LEVEL')) { $elvl = error_reporting(E_ERROR); }
790        $rc = $feed->init();
791        if (!defined('DOKU_E_LEVEL')) { error_reporting($elvl); }
792
793        //decide on start and end
794        if($params['reverse']){
795            $mod = -1;
796            $start = $feed->get_item_quantity()-1;
797            $end   = $start - ($params['max']);
798            $end   = ($end < -1) ? -1 : $end;
799        }else{
800            $mod   = 1;
801            $start = 0;
802            $end   = $feed->get_item_quantity();
803            $end   = ($end > $params['max']) ? $params['max'] : $end;;
804        }
805
806        $this->doc .= '<ul class="rss">';
807        if($rc){
808            for ($x = $start; $x != $end; $x += $mod) {
809                $item = $feed->get_item($x);
810                $this->doc .= '<li><div class="li">';
811                $this->externallink($item->get_permalink(),
812                                    $item->get_title());
813                if($params['author']){
814                    $author = $item->get_author(0);
815                    if($author){
816                        $name = $author->get_name();
817                        if(!$name) $name = $author->get_email();
818                        if($name) $this->doc .= ' '.$lang['by'].' '.$name;
819                    }
820                }
821                if($params['date']){
822                    $this->doc .= ' ('.$item->get_date($conf['dformat']).')';
823                }
824                if($params['details']){
825                    $this->doc .= '<div class="detail">';
826                    if($htmlok){
827                        $this->doc .= $item->get_description();
828                    }else{
829                        $this->doc .= strip_tags($item->get_description());
830                    }
831                    $this->doc .= '</div>';
832                }
833
834                $this->doc .= '</div></li>';
835            }
836        }else{
837            $this->doc .= '<li><div class="li">';
838            $this->doc .= '<em>'.$lang['rssfailed'].'</em>';
839            $this->externallink($url);
840            $this->doc .= '</div></li>';
841        }
842        $this->doc .= '</ul>';
843    }
844
845    // $numrows not yet implemented
846    function table_open($maxcols = NULL, $numrows = NULL){
847        $this->doc .= '<table class="inline">'.DOKU_LF;
848    }
849
850    function table_close(){
851        $this->doc .= '</table>'.DOKU_LF;
852    }
853
854    function tablerow_open(){
855        $this->doc .= DOKU_TAB . '<tr>' . DOKU_LF . DOKU_TAB . DOKU_TAB;
856    }
857
858    function tablerow_close(){
859        $this->doc .= DOKU_LF . DOKU_TAB . '</tr>' . DOKU_LF;
860    }
861
862    function tableheader_open($colspan = 1, $align = NULL){
863        $this->doc .= '<th';
864        if ( !is_null($align) ) {
865            $this->doc .= ' class="'.$align.'align"';
866        }
867        if ( $colspan > 1 ) {
868            $this->doc .= ' colspan="'.$colspan.'"';
869        }
870        $this->doc .= '>';
871    }
872
873    function tableheader_close(){
874        $this->doc .= '</th>';
875    }
876
877    function tablecell_open($colspan = 1, $align = NULL){
878        $this->doc .= '<td';
879        if ( !is_null($align) ) {
880            $this->doc .= ' class="'.$align.'align"';
881        }
882        if ( $colspan > 1 ) {
883            $this->doc .= ' colspan="'.$colspan.'"';
884        }
885        $this->doc .= '>';
886    }
887
888    function tablecell_close(){
889        $this->doc .= '</td>';
890    }
891
892    //----------------------------------------------------------
893    // Utils
894
895    /**
896     * Build a link
897     *
898     * Assembles all parts defined in $link returns HTML for the link
899     *
900     * @author Andreas Gohr <andi@splitbrain.org>
901     */
902    function _formatLink($link){
903        //make sure the url is XHTML compliant (skip mailto)
904        if(substr($link['url'],0,7) != 'mailto:'){
905            $link['url'] = str_replace('&','&amp;',$link['url']);
906            $link['url'] = str_replace('&amp;amp;','&amp;',$link['url']);
907        }
908        //remove double encodings in titles
909        $link['title'] = str_replace('&amp;amp;','&amp;',$link['title']);
910
911        // be sure there are no bad chars in url or title
912        // (we can't do this for name because it can contain an img tag)
913        $link['url']   = strtr($link['url'],array('>'=>'%3E','<'=>'%3C','"'=>'%22'));
914        $link['title'] = strtr($link['title'],array('>'=>'&gt;','<'=>'&lt;','"'=>'&quot;'));
915
916        $ret  = '';
917        $ret .= $link['pre'];
918        $ret .= '<a href="'.$link['url'].'"';
919        if(!empty($link['class']))  $ret .= ' class="'.$link['class'].'"';
920        if(!empty($link['target'])) $ret .= ' target="'.$link['target'].'"';
921        if(!empty($link['title']))  $ret .= ' title="'.$link['title'].'"';
922        if(!empty($link['style']))  $ret .= ' style="'.$link['style'].'"';
923        if(!empty($link['more']))   $ret .= ' '.$link['more'];
924        $ret .= '>';
925        $ret .= $link['name'];
926        $ret .= '</a>';
927        $ret .= $link['suf'];
928        return $ret;
929    }
930
931    /**
932     * Removes any Namespace from the given name but keeps
933     * casing and special chars
934     *
935     * @author Andreas Gohr <andi@splitbrain.org>
936     */
937    function _simpleTitle($name){
938        global $conf;
939
940        //if there is a hash we use the ancor name only
941        list($name,$hash) = explode('#',$name,2);
942        if($hash) return $hash;
943
944        //trim colons of a namespace link
945        $name = rtrim($name,':');
946
947        if($conf['useslash']){
948            $nssep = '[:;/]';
949        }else{
950            $nssep = '[:;]';
951        }
952        $name = preg_replace('!.*'.$nssep.'!','',$name);
953
954        if(!$name) return $this->_simpleTitle($conf['start']);
955        return $name;
956    }
957
958    /**
959     * Renders internal and external media
960     *
961     * @author Andreas Gohr <andi@splitbrain.org>
962     */
963    function _media ($src, $title=NULL, $align=NULL, $width=NULL,
964                      $height=NULL, $cache=NULL) {
965
966        $ret = '';
967
968        list($ext,$mime) = mimetype($src);
969        if(substr($mime,0,5) == 'image'){
970            //add image tag
971            $ret .= '<img src="'.ml($src,array('w'=>$width,'h'=>$height,'cache'=>$cache)).'"';
972            $ret .= ' class="media'.$align.'"';
973
974            if (!is_null($title)) {
975                $ret .= ' title="'.$this->_xmlEntities($title).'"';
976                $ret .= ' alt="'.$this->_xmlEntities($title).'"';
977            }elseif($ext == 'jpg' || $ext == 'jpeg'){
978                //try to use the caption from IPTC/EXIF
979                require_once(DOKU_INC.'inc/JpegMeta.php');
980                $jpeg =& new JpegMeta(mediaFN($src));
981                if($jpeg !== false) $cap = $jpeg->getTitle();
982                if($cap){
983                    $ret .= ' title="'.$this->_xmlEntities($cap).'"';
984                    $ret .= ' alt="'.$this->_xmlEntities($cap).'"';
985                }
986            }else{
987                $ret .= ' alt=""';
988            }
989
990            if ( !is_null($width) )
991                $ret .= ' width="'.$this->_xmlEntities($width).'"';
992
993            if ( !is_null($height) )
994                $ret .= ' height="'.$this->_xmlEntities($height).'"';
995
996            $ret .= ' />';
997
998        }elseif($mime == 'application/x-shockwave-flash'){
999            $ret .= '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'.
1000                    ' codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"';
1001            if ( !is_null($width) ) $ret .= ' width="'.$this->_xmlEntities($width).'"';
1002            if ( !is_null($height) ) $ret .= ' height="'.$this->_xmlEntities($height).'"';
1003            $ret .= '>'.DOKU_LF;
1004            $ret .= '<param name="movie" value="'.ml($src).'" />'.DOKU_LF;
1005            $ret .= '<param name="quality" value="high" />'.DOKU_LF;
1006            $ret .= '<embed src="'.ml($src).'"'.
1007                    ' quality="high"';
1008            if ( !is_null($width) ) $ret .= ' width="'.$this->_xmlEntities($width).'"';
1009            if ( !is_null($height) ) $ret .= ' height="'.$this->_xmlEntities($height).'"';
1010            $ret .= ' type="application/x-shockwave-flash"'.
1011                    ' pluginspage="http://www.macromedia.com/go/getflashplayer"></embed>'.DOKU_LF;
1012            $ret .= '</object>'.DOKU_LF;
1013
1014        }elseif(!is_null($title)){
1015            // well at least we have a title to display
1016            $ret .= $this->_xmlEntities($title);
1017        }else{
1018            // just show the sourcename
1019            $ret .= $this->_xmlEntities(noNS($src));
1020        }
1021
1022        return $ret;
1023    }
1024
1025    function _xmlEntities($string) {
1026        return htmlspecialchars($string);
1027    }
1028
1029    /**
1030     * Creates a linkid from a headline
1031     *
1032     * @param string  $title   The headline title
1033     * @param boolean $create  Create a new unique ID?
1034     * @author Andreas Gohr <andi@splitbrain.org>
1035     */
1036    function _headerToLink($title,$create=false) {
1037        $title = str_replace(':','',cleanID($title));
1038        $title = ltrim($title,'0123456789._-');
1039        if(empty($title)) $title='section';
1040
1041        if($create){
1042            // make sure tiles are unique
1043            $num = '';
1044            while(in_array($title.$num,$this->headers)){
1045                ($num) ? $num++ : $num = 1;
1046            }
1047            $title = $title.$num;
1048            $this->headers[] = $title;
1049        }
1050
1051        return $title;
1052    }
1053
1054    /**
1055     * Construct a title and handle images in titles
1056     *
1057     * @author Harry Fuecks <hfuecks@gmail.com>
1058     */
1059    function _getLinkTitle($title, $default, & $isImage, $id=NULL) {
1060        global $conf;
1061
1062        $isImage = FALSE;
1063        if ( is_null($title) ) {
1064            if ($conf['useheading'] && $id) {
1065                $heading = p_get_first_heading($id);
1066                if ($heading) {
1067                    return $this->_xmlEntities($heading);
1068                }
1069            }
1070            return $this->_xmlEntities($default);
1071        } else if ( is_string($title) ) {
1072            return $this->_xmlEntities($title);
1073        } else if ( is_array($title) ) {
1074            $isImage = TRUE;
1075            return $this->_imageTitle($title);
1076        }
1077    }
1078
1079    /**
1080     * Returns an HTML code for images used in link titles
1081     *
1082     * @todo Resolve namespace on internal images
1083     * @author Andreas Gohr <andi@splitbrain.org>
1084     */
1085    function _imageTitle($img) {
1086        return $this->_media($img['src'],
1087                              $img['title'],
1088                              $img['align'],
1089                              $img['width'],
1090                              $img['height'],
1091                              $img['cache']);
1092    }
1093}
1094
1095//Setup VIM: ex: et ts=4 enc=utf-8 :
1096