Dokuwiki module for Elgg 1.7

1 files changed, 1142 insertions, 0 deletions

diff --git a/lib/dokuwiki/inc/parser/xhtml.php b/lib/dokuwiki/inc/parser/xhtml.php
new file mode 100644
index 000000000..4d5333f7a
--- /dev/null
+++ b/lib/dokuwiki/inc/parser/xhtml.php
@@ -0,0 +1,1142 @@
+<?php
+/**
+ * Renderer for XHTML output
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+if(!defined('DOKU_INC')) die('meh.');
+
+if ( !defined('DOKU_LF') ) {
+    // Some whitespace to help View > Source
+    define ('DOKU_LF',"\n");
+}
+
+if ( !defined('DOKU_TAB') ) {
+    // Some whitespace to help View > Source
+    define ('DOKU_TAB',"\t");
+}
+
+require_once DOKU_INC . 'inc/parser/renderer.php';
+require_once DOKU_INC . 'inc/html.php';
+
+/**
+ * The Renderer
+ */
+class Doku_Renderer_xhtml extends Doku_Renderer {
+
+    // @access public
+    var $doc = '';        // will contain the whole document
+    var $toc = array();   // will contain the Table of Contents
+
+
+    var $headers = array();
+    var $footnotes = array();
+    var $lastlevel = 0;
+    var $node = array(0,0,0,0,0);
+    var $store = '';
+
+    var $_counter   = array(); // used as global counter, introduced for table classes
+    var $_codeblock = 0; // counts the code and file blocks, used to provide download links
+
+    function getFormat(){
+        return 'xhtml';
+    }
+
+
+    function document_start() {
+        //reset some internals
+        $this->toc     = array();
+        $this->headers = array();
+    }
+
+    function document_end() {
+        if ( count ($this->footnotes) > 0 ) {
+            $this->doc .= '<div class="footnotes">'.DOKU_LF;
+
+            $id = 0;
+            foreach ( $this->footnotes as $footnote ) {
+                $id++;   // the number of the current footnote
+
+                // check its not a placeholder that indicates actual footnote text is elsewhere
+                if (substr($footnote, 0, 5) != "@@FNT") {
+
+                    // open the footnote and set the anchor and backlink
+                    $this->doc .= '<div class="fn">';
+                    $this->doc .= '<sup><a href="#fnt__'.$id.'" id="fn__'.$id.'" name="fn__'.$id.'" class="fn_bot">';
+                    $this->doc .= $id.')</a></sup> '.DOKU_LF;
+
+                    // get any other footnotes that use the same markup
+                    $alt = array_keys($this->footnotes, "@@FNT$id");
+
+                    if (count($alt)) {
+                      foreach ($alt as $ref) {
+                        // set anchor and backlink for the other footnotes
+                        $this->doc .= ', <sup><a href="#fnt__'.($ref+1).'" id="fn__'.($ref+1).'" name="fn__'.($ref+1).'" class="fn_bot">';
+                        $this->doc .= ($ref+1).')</a></sup> '.DOKU_LF;
+                      }
+                    }
+
+                    // add footnote markup and close this footnote
+                    $this->doc .= $footnote;
+                    $this->doc .= '</div>' . DOKU_LF;
+                }
+            }
+            $this->doc .= '</div>'.DOKU_LF;
+        }
+
+        // Prepare the TOC
+        global $conf;
+        if($this->info['toc'] && is_array($this->toc) && $conf['tocminheads'] && count($this->toc) >= $conf['tocminheads']){
+            global $TOC;
+            $TOC = $this->toc;
+        }
+
+        // make sure there are no empty paragraphs
+        $this->doc = preg_replace('#<p>\s*</p>#','',$this->doc);
+    }
+
+    function toc_additem($id, $text, $level) {
+        global $conf;
+
+        //handle TOC
+        if($level >= $conf['toptoclevel'] && $level <= $conf['maxtoclevel']){
+            $this->toc[] = html_mktocitem($id, $text, $level-$conf['toptoclevel']+1);
+        }
+    }
+
+    function header($text, $level, $pos) {
+        if(!$text) return; //skip empty headlines
+
+        $hid = $this->_headerToLink($text,true);
+
+        //only add items within configured levels
+        $this->toc_additem($hid, $text, $level);
+
+        // adjust $node to reflect hierarchy of levels
+        $this->node[$level-1]++;
+        if ($level < $this->lastlevel) {
+            for ($i = 0; $i < $this->lastlevel-$level; $i++) {
+                $this->node[$this->lastlevel-$i-1] = 0;
+            }
+        }
+        $this->lastlevel = $level;
+
+        // write the header
+        $this->doc .= DOKU_LF.'<h'.$level.'><a name="'.$hid.'" id="'.$hid.'">';
+        $this->doc .= $this->_xmlEntities($text);
+        $this->doc .= "</a></h$level>".DOKU_LF;
+    }
+
+     /**
+     * Section edit marker is replaced by an edit button when
+     * the page is editable. Replacement done in 'inc/html.php#html_secedit'
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     * @author Ben Coburn   <btcoburn@silicodon.net>
+     */
+    function section_edit($start, $end, $level, $name) {
+        global $conf;
+
+        if ($start!=-1 && $level<=$conf['maxseclevel']) {
+            $name = str_replace('"', '', $name);
+            $this->doc .= '<!-- SECTION "'.$name.'" ['.$start.'-'.(($end===0)?'':$end).'] -->';
+        }
+    }
+
+    function section_open($level) {
+        $this->doc .= "<div class=\"level$level\">".DOKU_LF;
+    }
+
+    function section_close() {
+        $this->doc .= DOKU_LF.'</div>'.DOKU_LF;
+    }
+
+    function cdata($text) {
+        $this->doc .= $this->_xmlEntities($text);
+    }
+
+    function p_open() {
+        $this->doc .= DOKU_LF.'<p>'.DOKU_LF;
+    }
+
+    function p_close() {
+        $this->doc .= DOKU_LF.'</p>'.DOKU_LF;
+    }
+
+    function linebreak() {
+        $this->doc .= '<br/>'.DOKU_LF;
+    }
+
+    function hr() {
+        $this->doc .= '<hr />'.DOKU_LF;
+    }
+
+    function strong_open() {
+        $this->doc .= '<strong>';
+    }
+
+    function strong_close() {
+        $this->doc .= '</strong>';
+    }
+
+    function emphasis_open() {
+        $this->doc .= '<em>';
+    }
+
+    function emphasis_close() {
+        $this->doc .= '</em>';
+    }
+
+    function underline_open() {
+        $this->doc .= '<em class="u">';
+    }
+
+    function underline_close() {
+        $this->doc .= '</em>';
+    }
+
+    function monospace_open() {
+        $this->doc .= '<code>';
+    }
+
+    function monospace_close() {
+        $this->doc .= '</code>';
+    }
+
+    function subscript_open() {
+        $this->doc .= '<sub>';
+    }
+
+    function subscript_close() {
+        $this->doc .= '</sub>';
+    }
+
+    function superscript_open() {
+        $this->doc .= '<sup>';
+    }
+
+    function superscript_close() {
+        $this->doc .= '</sup>';
+    }
+
+    function deleted_open() {
+        $this->doc .= '<del>';
+    }
+
+    function deleted_close() {
+        $this->doc .= '</del>';
+    }
+
+    /**
+     * Callback for footnote start syntax
+     *
+     * All following content will go to the footnote instead of
+     * the document. To achieve this the previous rendered content
+     * is moved to $store and $doc is cleared
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function footnote_open() {
+
+        // move current content to store and record footnote
+        $this->store = $this->doc;
+        $this->doc   = '';
+    }
+
+    /**
+     * Callback for footnote end syntax
+     *
+     * All rendered content is moved to the $footnotes array and the old
+     * content is restored from $store again
+     *
+     * @author Andreas Gohr
+     */
+    function footnote_close() {
+
+        // recover footnote into the stack and restore old content
+        $footnote = $this->doc;
+        $this->doc = $this->store;
+        $this->store = '';
+
+        // check to see if this footnote has been seen before
+        $i = array_search($footnote, $this->footnotes);
+
+        if ($i === false) {
+            // its a new footnote, add it to the $footnotes array
+            $id = count($this->footnotes)+1;
+            $this->footnotes[count($this->footnotes)] = $footnote;
+        } else {
+            // seen this one before, translate the index to an id and save a placeholder
+            $i++;
+            $id = count($this->footnotes)+1;
+            $this->footnotes[count($this->footnotes)] = "@@FNT".($i);
+        }
+
+        // output the footnote reference and link
+        $this->doc .= '<sup><a href="#fn__'.$id.'" name="fnt__'.$id.'" id="fnt__'.$id.'" class="fn_top">'.$id.')</a></sup>';
+    }
+
+    function listu_open() {
+        $this->doc .= '<ul>'.DOKU_LF;
+    }
+
+    function listu_close() {
+        $this->doc .= '</ul>'.DOKU_LF;
+    }
+
+    function listo_open() {
+        $this->doc .= '<ol>'.DOKU_LF;
+    }
+
+    function listo_close() {
+        $this->doc .= '</ol>'.DOKU_LF;
+    }
+
+    function listitem_open($level) {
+        $this->doc .= '<li class="level'.$level.'">';
+    }
+
+    function listitem_close() {
+        $this->doc .= '</li>'.DOKU_LF;
+    }
+
+    function listcontent_open() {
+        $this->doc .= '<div class="li">';
+    }
+
+    function listcontent_close() {
+        $this->doc .= '</div>'.DOKU_LF;
+    }
+
+    function unformatted($text) {
+        $this->doc .= $this->_xmlEntities($text);
+    }
+
+    /**
+     * Execute PHP code if allowed
+     *
+     * @param  string   $wrapper   html element to wrap result if $conf['phpok'] is okff
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function php($text, $wrapper='code') {
+        global $conf;
+
+        if($conf['phpok']){
+          ob_start();
+          eval($text);
+          $this->doc .= ob_get_contents();
+          ob_end_clean();
+        } else {
+          $this->doc .= p_xhtml_cached_geshi($text, 'php', $wrapper);
+        }
+    }
+
+    function phpblock($text) {
+        $this->php($text, 'pre');
+    }
+
+    /**
+     * Insert HTML if allowed
+     *
+     * @param  string   $wrapper   html element to wrap result if $conf['htmlok'] is okff
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function html($text, $wrapper='code') {
+        global $conf;
+
+        if($conf['htmlok']){
+          $this->doc .= $text;
+        } else {
+          $this->doc .= p_xhtml_cached_geshi($text, 'html4strict', $wrapper);
+        }
+    }
+
+    function htmlblock($text) {
+        $this->html($text, 'pre');
+    }
+
+    function quote_open() {
+        $this->doc .= '<blockquote><div class="no">'.DOKU_LF;
+    }
+
+    function quote_close() {
+        $this->doc .= '</div></blockquote>'.DOKU_LF;
+    }
+
+    function preformatted($text) {
+        $this->doc .= '<pre class="code">' . trim($this->_xmlEntities($text),"\n\r") . '</pre>'. DOKU_LF;
+    }
+
+    function file($text, $language=null, $filename=null) {
+        $this->_highlight('file',$text,$language,$filename);
+    }
+
+    function code($text, $language=null, $filename=null) {
+        $this->_highlight('code',$text,$language,$filename);
+    }
+
+    /**
+     * Use GeSHi to highlight language syntax in code and file blocks
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function _highlight($type, $text, $language=null, $filename=null) {
+        global $conf;
+        global $ID;
+        global $lang;
+
+        if($filename){
+            // add icon
+            list($ext) = mimetype($filename,false);
+            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
+            $class = 'mediafile mf_'.$class;
+
+            $this->doc .= '<dl class="'.$type.'">'.DOKU_LF;
+            $this->doc .= '<dt><a href="'.exportlink($ID,'code',array('codeblock'=>$this->_codeblock)).'" title="'.$lang['download'].'" class="'.$class.'">';
+            $this->doc .= hsc($filename);
+            $this->doc .= '</a></dt>'.DOKU_LF.'<dd>';
+        }
+
+        if ( is_null($language) ) {
+            $this->doc .= '<pre class="'.$type.'">'.$this->_xmlEntities($text).'</pre>'.DOKU_LF;
+        } else {
+            $class = 'code'; //we always need the code class to make the syntax highlighting apply
+            if($type != 'code') $class .= ' '.$type;
+
+            $this->doc .= "<pre class=\"$class $language\">".p_xhtml_cached_geshi($text, $language, '').'</pre>'.DOKU_LF;
+        }
+
+        if($filename){
+            $this->doc .= '</dd></dl>'.DOKU_LF;
+        }
+
+        $this->_codeblock++;
+    }
+
+    function acronym($acronym) {
+
+        if ( array_key_exists($acronym, $this->acronyms) ) {
+
+            $title = $this->_xmlEntities($this->acronyms[$acronym]);
+
+            $this->doc .= '<acronym title="'.$title
+                .'">'.$this->_xmlEntities($acronym).'</acronym>';
+
+        } else {
+            $this->doc .= $this->_xmlEntities($acronym);
+        }
+    }
+
+    function smiley($smiley) {
+        if ( array_key_exists($smiley, $this->smileys) ) {
+            $title = $this->_xmlEntities($this->smileys[$smiley]);
+            $this->doc .= '<img src="'.DOKU_BASE.'lib/images/smileys/'.$this->smileys[$smiley].
+                '" class="middle" alt="'.
+                    $this->_xmlEntities($smiley).'" />';
+        } else {
+            $this->doc .= $this->_xmlEntities($smiley);
+        }
+    }
+
+    /*
+    * not used
+    function wordblock($word) {
+        if ( array_key_exists($word, $this->badwords) ) {
+            $this->doc .= '** BLEEP **';
+        } else {
+            $this->doc .= $this->_xmlEntities($word);
+        }
+    }
+    */
+
+    function entity($entity) {
+        if ( array_key_exists($entity, $this->entities) ) {
+            $this->doc .= $this->entities[$entity];
+        } else {
+            $this->doc .= $this->_xmlEntities($entity);
+        }
+    }
+
+    function multiplyentity($x, $y) {
+        $this->doc .= "$x&times;$y";
+    }
+
+    function singlequoteopening() {
+        global $lang;
+        $this->doc .= $lang['singlequoteopening'];
+    }
+
+    function singlequoteclosing() {
+        global $lang;
+        $this->doc .= $lang['singlequoteclosing'];
+    }
+
+    function apostrophe() {
+        global $lang;
+        $this->doc .= $lang['apostrophe'];
+    }
+
+    function doublequoteopening() {
+        global $lang;
+        $this->doc .= $lang['doublequoteopening'];
+    }
+
+    function doublequoteclosing() {
+        global $lang;
+        $this->doc .= $lang['doublequoteclosing'];
+    }
+
+    /**
+    */
+    function camelcaselink($link) {
+      $this->internallink($link,$link);
+    }
+
+
+    function locallink($hash, $name = NULL){
+        global $ID;
+        $name  = $this->_getLinkTitle($name, $hash, $isImage);
+        $hash  = $this->_headerToLink($hash);
+        $title = $ID.' &crarr;';
+        $this->doc .= '<a href="#'.$hash.'" title="'.$title.'" class="wikilink1">';
+        $this->doc .= $name;
+        $this->doc .= '</a>';
+    }
+
+    /**
+     * Render an internal Wiki Link
+     *
+     * $search,$returnonly & $linktype are not for the renderer but are used
+     * elsewhere - no need to implement them in other renderers
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function internallink($id, $name = NULL, $search=NULL,$returnonly=false,$linktype='content') {
+        global $conf;
+        global $ID;
+        // default name is based on $id as given
+        $default = $this->_simpleTitle($id);
+
+        // now first resolve and clean up the $id
+        resolve_pageid(getNS($ID),$id,$exists);
+        $name = $this->_getLinkTitle($name, $default, $isImage, $id, $linktype);
+        if ( !$isImage ) {
+            if ( $exists ) {
+                $class='wikilink1';
+            } else {
+                $class='wikilink2';
+                $link['rel']='nofollow';
+            }
+        } else {
+            $class='media';
+        }
+
+        //keep hash anchor
+        list($id,$hash) = explode('#',$id,2);
+        if(!empty($hash)) $hash = $this->_headerToLink($hash);
+
+        //prepare for formating
+        $link['target'] = $conf['target']['wiki'];
+        $link['style']  = '';
+        $link['pre']    = '';
+        $link['suf']    = '';
+        // highlight link to current page
+        if ($id == $ID) {
+            $link['pre']    = '<span class="curid">';
+            $link['suf']    = '</span>';
+        }
+        $link['more']   = '';
+        $link['class']  = $class;
+        $link['url']    = wl($id);
+        $link['name']   = $name;
+        $link['title']  = $id;
+        //add search string
+        if($search){
+            ($conf['userewrite']) ? $link['url'].='?' : $link['url'].='&amp;';
+            if(is_array($search)){
+                $search = array_map('rawurlencode',$search);
+                $link['url'] .= 's[]='.join('&amp;s[]=',$search);
+            }else{
+                $link['url'] .= 's='.rawurlencode($search);
+            }
+        }
+
+        //keep hash
+        if($hash) $link['url'].='#'.$hash;
+
+        //output formatted
+        if($returnonly){
+            return $this->_formatLink($link);
+        }else{
+            $this->doc .= $this->_formatLink($link);
+        }
+    }
+
+    function externallink($url, $name = NULL) {
+        global $conf;
+
+        $name = $this->_getLinkTitle($name, $url, $isImage);
+
+        if ( !$isImage ) {
+            $class='urlextern';
+        } else {
+            $class='media';
+        }
+
+        //prepare for formating
+        $link['target'] = $conf['target']['extern'];
+        $link['style']  = '';
+        $link['pre']    = '';
+        $link['suf']    = '';
+        $link['more']   = '';
+        $link['class']  = $class;
+        $link['url']    = $url;
+
+        $link['name']   = $name;
+        $link['title']  = $this->_xmlEntities($url);
+        if($conf['relnofollow']) $link['more'] .= ' rel="nofollow"';
+
+        //output formatted
+        $this->doc .= $this->_formatLink($link);
+    }
+
+    /**
+    */
+    function interwikilink($match, $name = NULL, $wikiName, $wikiUri) {
+        global $conf;
+
+        $link = array();
+        $link['target'] = $conf['target']['interwiki'];
+        $link['pre']    = '';
+        $link['suf']    = '';
+        $link['more']   = '';
+        $link['name']   = $this->_getLinkTitle($name, $wikiUri, $isImage);
+
+        //get interwiki URL
+        $url = $this->_resolveInterWiki($wikiName,$wikiUri);
+
+        if ( !$isImage ) {
+            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$wikiName);
+            $link['class'] = "interwiki iw_$class";
+        } else {
+            $link['class'] = 'media';
+        }
+
+        //do we stay at the same server? Use local target
+        if( strpos($url,DOKU_URL) === 0 ){
+            $link['target'] = $conf['target']['wiki'];
+        }
+
+        $link['url'] = $url;
+        $link['title'] = htmlspecialchars($link['url']);
+
+        //output formatted
+        $this->doc .= $this->_formatLink($link);
+    }
+
+    /**
+     */
+    function windowssharelink($url, $name = NULL) {
+        global $conf;
+        global $lang;
+        //simple setup
+        $link['target'] = $conf['target']['windows'];
+        $link['pre']    = '';
+        $link['suf']   = '';
+        $link['style']  = '';
+
+        $link['name'] = $this->_getLinkTitle($name, $url, $isImage);
+        if ( !$isImage ) {
+            $link['class'] = 'windows';
+        } else {
+            $link['class'] = 'media';
+        }
+
+
+        $link['title'] = $this->_xmlEntities($url);
+        $url = str_replace('\\','/',$url);
+        $url = 'file:///'.$url;
+        $link['url'] = $url;
+
+        //output formatted
+        $this->doc .= $this->_formatLink($link);
+    }
+
+    function emaillink($address, $name = NULL) {
+        global $conf;
+        //simple setup
+        $link = array();
+        $link['target'] = '';
+        $link['pre']    = '';
+        $link['suf']   = '';
+        $link['style']  = '';
+        $link['more']   = '';
+
+        $name = $this->_getLinkTitle($name, '', $isImage);
+        if ( !$isImage ) {
+            $link['class']='mail JSnocheck';
+        } else {
+            $link['class']='media JSnocheck';
+        }
+
+        $address = $this->_xmlEntities($address);
+        $address = obfuscate($address);
+        $title   = $address;
+
+        if(empty($name)){
+            $name = $address;
+        }
+
+        if($conf['mailguard'] == 'visible') $address = rawurlencode($address);
+
+        $link['url']   = 'mailto:'.$address;
+        $link['name']  = $name;
+        $link['title'] = $title;
+
+        //output formatted
+        $this->doc .= $this->_formatLink($link);
+    }
+
+    function internalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
+                            $height=NULL, $cache=NULL, $linking=NULL) {
+        global $ID;
+        list($src,$hash) = explode('#',$src,2);
+        resolve_mediaid(getNS($ID),$src, $exists);
+
+        $noLink = false;
+        $render = ($linking == 'linkonly') ? false : true;
+        $link = $this->_getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render);
+
+        list($ext,$mime,$dl) = mimetype($src,false);
+        if(substr($mime,0,5) == 'image' && $render){
+            $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),($linking=='direct'));
+        }elseif($mime == 'application/x-shockwave-flash' && $render){
+            // don't link flash movies
+            $noLink = true;
+        }else{
+            // add file icons
+            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
+            $link['class'] .= ' mediafile mf_'.$class;
+            $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),true);
+        }
+
+        if($hash) $link['url'] .= '#'.$hash;
+
+        //markup non existing files
+        if (!$exists)
+          $link['class'] .= ' wikilink2';
+
+        //output formatted
+        if ($linking == 'nolink' || $noLink) $this->doc .= $link['name'];
+        else $this->doc .= $this->_formatLink($link);
+    }
+
+    function externalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
+                            $height=NULL, $cache=NULL, $linking=NULL) {
+        list($src,$hash) = explode('#',$src,2);
+        $noLink = false;
+        $render = ($linking == 'linkonly') ? false : true;
+        $link = $this->_getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render);
+
+        $link['url']    = ml($src,array('cache'=>$cache));
+
+        list($ext,$mime,$dl) = mimetype($src,false);
+        if(substr($mime,0,5) == 'image' && $render){
+            // link only jpeg images
+            // if ($ext != 'jpg' && $ext != 'jpeg') $noLink = true;
+        }elseif($mime == 'application/x-shockwave-flash' && $render){
+            // don't link flash movies
+            $noLink = true;
+        }else{
+            // add file icons
+            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
+            $link['class'] .= ' mediafile mf_'.$class;
+        }
+
+        if($hash) $link['url'] .= '#'.$hash;
+
+        //output formatted
+        if ($linking == 'nolink' || $noLink) $this->doc .= $link['name'];
+        else $this->doc .= $this->_formatLink($link);
+    }
+
+    /**
+     * Renders an RSS feed
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function rss ($url,$params){
+        global $lang;
+        global $conf;
+
+        require_once(DOKU_INC.'inc/FeedParser.php');
+        $feed = new FeedParser();
+        $feed->set_feed_url($url);
+
+        //disable warning while fetching
+        if (!defined('DOKU_E_LEVEL')) { $elvl = error_reporting(E_ERROR); }
+        $rc = $feed->init();
+        if (!defined('DOKU_E_LEVEL')) { error_reporting($elvl); }
+
+        //decide on start and end
+        if($params['reverse']){
+            $mod = -1;
+            $start = $feed->get_item_quantity()-1;
+            $end   = $start - ($params['max']);
+            $end   = ($end < -1) ? -1 : $end;
+        }else{
+            $mod   = 1;
+            $start = 0;
+            $end   = $feed->get_item_quantity();
+            $end   = ($end > $params['max']) ? $params['max'] : $end;;
+        }
+
+        $this->doc .= '<ul class="rss">';
+        if($rc){
+            for ($x = $start; $x != $end; $x += $mod) {
+                $item = $feed->get_item($x);
+                $this->doc .= '<li><div class="li">';
+                // support feeds without links
+                $lnkurl = $item->get_permalink();
+                if($lnkurl){
+                    // title is escaped by SimplePie, we unescape here because it
+                    // is escaped again in externallink() FS#1705
+                    $this->externallink($item->get_permalink(),
+                                        htmlspecialchars_decode($item->get_title()));
+                }else{
+                    $this->doc .= ' '.$item->get_title();
+                }
+                if($params['author']){
+                    $author = $item->get_author(0);
+                    if($author){
+                        $name = $author->get_name();
+                        if(!$name) $name = $author->get_email();
+                        if($name) $this->doc .= ' '.$lang['by'].' '.$name;
+                    }
+                }
+                if($params['date']){
+                    $this->doc .= ' ('.$item->get_local_date($conf['dformat']).')';
+                }
+                if($params['details']){
+                    $this->doc .= '<div class="detail">';
+                    if($conf['htmlok']){
+                        $this->doc .= $item->get_description();
+                    }else{
+                        $this->doc .= strip_tags($item->get_description());
+                    }
+                    $this->doc .= '</div>';
+                }
+
+                $this->doc .= '</div></li>';
+            }
+        }else{
+            $this->doc .= '<li><div class="li">';
+            $this->doc .= '<em>'.$lang['rssfailed'].'</em>';
+            $this->externallink($url);
+            if($conf['allowdebug']){
+                $this->doc .= '<!--'.hsc($feed->error).'-->';
+            }
+            $this->doc .= '</div></li>';
+        }
+        $this->doc .= '</ul>';
+    }
+
+    // $numrows not yet implemented
+    function table_open($maxcols = NULL, $numrows = NULL){
+        // initialize the row counter used for classes
+        $this->_counter['row_counter'] = 0;
+        $this->doc .= '<table class="inline">'.DOKU_LF;
+    }
+
+    function table_close(){
+        $this->doc .= '</table>'.DOKU_LF;
+    }
+
+    function tablerow_open(){
+        // initialize the cell counter used for classes
+        $this->_counter['cell_counter'] = 0;
+        $class = 'row' . $this->_counter['row_counter']++;
+        $this->doc .= DOKU_TAB . '<tr class="'.$class.'">' . DOKU_LF . DOKU_TAB . DOKU_TAB;
+    }
+
+    function tablerow_close(){
+        $this->doc .= DOKU_LF . DOKU_TAB . '</tr>' . DOKU_LF;
+    }
+
+    function tableheader_open($colspan = 1, $align = NULL, $rowspan = 1){
+        $class = 'class="col' . $this->_counter['cell_counter']++;
+        if ( !is_null($align) ) {
+            $class .= ' '.$align.'align';
+        }
+        $class .= '"';
+        $this->doc .= '<th ' . $class;
+        if ( $colspan > 1 ) {
+            $this->_counter['cell_counter'] += $colspan-1;
+            $this->doc .= ' colspan="'.$colspan.'"';
+        }
+        if ( $rowspan > 1 ) {
+            $this->doc .= ' rowspan="'.$rowspan.'"';
+        }
+        $this->doc .= '>';
+    }
+
+    function tableheader_close(){
+        $this->doc .= '</th>';
+    }
+
+    function tablecell_open($colspan = 1, $align = NULL, $rowspan = 1){
+        $class = 'class="col' . $this->_counter['cell_counter']++;
+        if ( !is_null($align) ) {
+            $class .= ' '.$align.'align';
+        }
+        $class .= '"';
+        $this->doc .= '<td '.$class;
+        if ( $colspan > 1 ) {
+            $this->_counter['cell_counter'] += $colspan-1;
+            $this->doc .= ' colspan="'.$colspan.'"';
+        }
+        if ( $rowspan > 1 ) {
+            $this->doc .= ' rowspan="'.$rowspan.'"';
+        }
+        $this->doc .= '>';
+    }
+
+    function tablecell_close(){
+        $this->doc .= '</td>';
+    }
+
+    //----------------------------------------------------------
+    // Utils
+
+    /**
+     * Build a link
+     *
+     * Assembles all parts defined in $link returns HTML for the link
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function _formatLink($link){
+        //make sure the url is XHTML compliant (skip mailto)
+        if(substr($link['url'],0,7) != 'mailto:'){
+            $link['url'] = str_replace('&','&amp;',$link['url']);
+            $link['url'] = str_replace('&amp;amp;','&amp;',$link['url']);
+        }
+        //remove double encodings in titles
+        $link['title'] = str_replace('&amp;amp;','&amp;',$link['title']);
+
+        // be sure there are no bad chars in url or title
+        // (we can't do this for name because it can contain an img tag)
+        $link['url']   = strtr($link['url'],array('>'=>'%3E','<'=>'%3C','"'=>'%22'));
+        $link['title'] = strtr($link['title'],array('>'=>'&gt;','<'=>'&lt;','"'=>'&quot;'));
+
+        $ret  = '';
+        $ret .= $link['pre'];
+        $ret .= '<a href="'.$link['url'].'"';
+        if(!empty($link['class']))  $ret .= ' class="'.$link['class'].'"';
+        if(!empty($link['target'])) $ret .= ' target="'.$link['target'].'"';
+        if(!empty($link['title']))  $ret .= ' title="'.$link['title'].'"';
+        if(!empty($link['style']))  $ret .= ' style="'.$link['style'].'"';
+        if(!empty($link['rel']))    $ret .= ' rel="'.$link['rel'].'"';
+        if(!empty($link['more']))   $ret .= ' '.$link['more'];
+        $ret .= '>';
+        $ret .= $link['name'];
+        $ret .= '</a>';
+        $ret .= $link['suf'];
+        return $ret;
+    }
+
+    /**
+     * Renders internal and external media
+     *
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function _media ($src, $title=NULL, $align=NULL, $width=NULL,
+                      $height=NULL, $cache=NULL, $render = true) {
+
+        $ret = '';
+
+        list($ext,$mime,$dl) = mimetype($src);
+        if(substr($mime,0,5) == 'image'){
+            // first get the $title
+            if (!is_null($title)) {
+                $title  = $this->_xmlEntities($title);
+            }elseif($ext == 'jpg' || $ext == 'jpeg'){
+                //try to use the caption from IPTC/EXIF
+                require_once(DOKU_INC.'inc/JpegMeta.php');
+                $jpeg =& new JpegMeta(mediaFN($src));
+                if($jpeg !== false) $cap = $jpeg->getTitle();
+                if($cap){
+                    $title = $this->_xmlEntities($cap);
+                }
+            }
+            if (!$render) {
+                // if the picture is not supposed to be rendered
+                // return the title of the picture
+                if (!$title) {
+                    // just show the sourcename
+                    $title = $this->_xmlEntities(basename(noNS($src)));
+                }
+                return $title;
+            }
+            //add image tag
+            $ret .= '<img src="'.ml($src,array('w'=>$width,'h'=>$height,'cache'=>$cache)).'"';
+            $ret .= ' class="media'.$align.'"';
+
+            // make left/right alignment for no-CSS view work (feeds)
+            if($align == 'right') $ret .= ' align="right"';
+            if($align == 'left')  $ret .= ' align="left"';
+
+            if ($title) {
+                $ret .= ' title="' . $title . '"';
+                $ret .= ' alt="'   . $title .'"';
+            }else{
+                $ret .= ' alt=""';
+            }
+
+            if ( !is_null($width) )
+                $ret .= ' width="'.$this->_xmlEntities($width).'"';
+
+            if ( !is_null($height) )
+                $ret .= ' height="'.$this->_xmlEntities($height).'"';
+
+            $ret .= ' />';
+
+        }elseif($mime == 'application/x-shockwave-flash'){
+            if (!$render) {
+                // if the flash is not supposed to be rendered
+                // return the title of the flash
+                if (!$title) {
+                    // just show the sourcename
+                    $title = basename(noNS($src));
+                }
+                return $this->_xmlEntities($title);
+            }
+
+            $att = array();
+            $att['class'] = "media$align";
+            if($align == 'right') $att['align'] = 'right';
+            if($align == 'left')  $att['align'] = 'left';
+            $ret .= html_flashobject(ml($src,array('cache'=>$cache)),$width,$height,
+                                     array('quality' => 'high'),
+                                     null,
+                                     $att,
+                                     $this->_xmlEntities($title));
+        }elseif($title){
+            // well at least we have a title to display
+            $ret .= $this->_xmlEntities($title);
+        }else{
+            // just show the sourcename
+            $ret .= $this->_xmlEntities(basename(noNS($src)));
+        }
+
+        return $ret;
+    }
+
+    function _xmlEntities($string) {
+        return htmlspecialchars($string,ENT_QUOTES,'UTF-8');
+    }
+
+    /**
+     * Creates a linkid from a headline
+     *
+     * @param string  $title   The headline title
+     * @param boolean $create  Create a new unique ID?
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function _headerToLink($title,$create=false) {
+        if($create){
+            return sectionID($title,$this->headers);
+        }else{
+            $check = false;
+            return sectionID($title,$check);
+        }
+    }
+
+    /**
+     * Construct a title and handle images in titles
+     *
+     * @author Harry Fuecks <hfuecks@gmail.com>
+     */
+    function _getLinkTitle($title, $default, & $isImage, $id=NULL, $linktype='content') {
+        global $conf;
+
+        $isImage = false;
+        if ( is_array($title) ) {
+            $isImage = true;
+            return $this->_imageTitle($title);
+        } elseif ( is_null($title) || trim($title)=='') {
+            if (useHeading($linktype) && $id) {
+                $heading = p_get_first_heading($id,true);
+                if ($heading) {
+                    return $this->_xmlEntities($heading);
+                }
+            }
+            return $this->_xmlEntities($default);
+        } else {
+            return $this->_xmlEntities($title);
+        }
+    }
+
+    /**
+     * Returns an HTML code for images used in link titles
+     *
+     * @todo Resolve namespace on internal images
+     * @author Andreas Gohr <andi@splitbrain.org>
+     */
+    function _imageTitle($img) {
+        global $ID;
+
+        // some fixes on $img['src']
+        // see internalmedia() and externalmedia()
+        list($img['src'],$hash) = explode('#',$img['src'],2);
+        if ($img['type'] == 'internalmedia') {
+            resolve_mediaid(getNS($ID),$img['src'],$exists);
+        }
+
+        return $this->_media($img['src'],
+                              $img['title'],
+                              $img['align'],
+                              $img['width'],
+                              $img['height'],
+                              $img['cache']);
+    }
+
+    /**
+     * _getMediaLinkConf is a helperfunction to internalmedia() and externalmedia()
+     * which returns a basic link to a media.
+     *
+     * @author Pierre Spring <pierre.spring@liip.ch>
+     * @param string $src
+     * @param string $title
+     * @param string $align
+     * @param string $width
+     * @param string $height
+     * @param string $cache
+     * @param string $render
+     * @access protected
+     * @return array
+     */
+    function _getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render)
+    {
+        global $conf;
+
+        $link = array();
+        $link['class']  = 'media';
+        $link['style']  = '';
+        $link['pre']    = '';
+        $link['suf']    = '';
+        $link['more']   = '';
+        $link['target'] = $conf['target']['media'];
+        $link['title']  = $this->_xmlEntities($src);
+        $link['name']   = $this->_media($src, $title, $align, $width, $height, $cache, $render);
+
+        return $link;
+    }
+
+
+}
+
+//Setup VIM: ex: et ts=4 enc=utf-8 :