Complex classes like Doku_Renderer_xhtml often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Doku_Renderer_xhtml, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 25 | class Doku_Renderer_xhtml extends Doku_Renderer { | 
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| 26 | /** @var array store the table of contents */  | 
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| 27 | public $toc = array();  | 
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| 28 | |||
| 29 | /** @var array A stack of section edit data */  | 
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| 30 | protected $sectionedits = array();  | 
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| 31 | var $date_at = ''; // link pages and media against this revision  | 
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| 32 | |||
| 33 | /** @var int last section edit id, used by startSectionEdit */  | 
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| 34 | protected $lastsecid = 0;  | 
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| 35 | |||
| 36 | /** @var array the list of headers used to create unique link ids */  | 
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| 37 | protected $headers = array();  | 
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| 38 | |||
| 39 | /** @var array a list of footnotes, list starts at 1! */  | 
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| 40 | protected $footnotes = array();  | 
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| 41 | |||
| 42 | /** @var int current section level */  | 
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| 43 | protected $lastlevel = 0;  | 
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| 44 | /** @var array section node tracker */  | 
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| 45 | protected $node = array(0, 0, 0, 0, 0);  | 
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| 46 | |||
| 47 | /** @var string temporary $doc store */  | 
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| 48 | protected $store = '';  | 
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| 49 | |||
| 50 | /** @var array global counter, for table classes etc. */  | 
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| 51 | protected $_counter = array(); //  | 
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| 52 | |||
| 53 | /** @var int counts the code and file blocks, used to provide download links */  | 
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| 54 | protected $_codeblock = 0;  | 
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| 55 | |||
| 56 | /** @var array list of allowed URL schemes */  | 
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| 57 | protected $schemes = null;  | 
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| 58 | |||
| 59 | /**  | 
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| 60 | * Register a new edit section range  | 
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| 61 | *  | 
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| 62 | * @param string $type The section type identifier  | 
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| 63 | * @param string $title The section title  | 
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| 64 | * @param int $start The byte position for the edit start  | 
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| 65 | * @return string A marker class for the starting HTML element  | 
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| 66 | *  | 
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| 67 | * @author Adrian Lang <[email protected]>  | 
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| 68 | */  | 
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| 69 |     public function startSectionEdit($start, $type, $title = null) { | 
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| 73 | |||
| 74 | /**  | 
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| 75 | * Finish an edit section range  | 
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| 76 | *  | 
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| 77 | * @param int $end The byte position for the edit end; null for the rest of the page  | 
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| 78 | *  | 
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| 79 | * @author Adrian Lang <[email protected]>  | 
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| 80 | */  | 
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| 81 |     public function finishSectionEdit($end = null) { | 
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| 82 | list($id, $start, $type, $title) = array_pop($this->sectionedits);  | 
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| 83 |         if(!is_null($end) && $end <= $start) { | 
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| 84 | return;  | 
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| 85 | }  | 
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| 86 | $this->doc .= "<!-- EDIT$id ".strtoupper($type).' ';  | 
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| 87 |         if(!is_null($title)) { | 
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| 88 |             $this->doc .= '"'.str_replace('"', '', $title).'" '; | 
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| 89 | }  | 
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| 90 | $this->doc .= "[$start-".(is_null($end) ? '' : $end).'] -->';  | 
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| 91 | }  | 
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| 92 | |||
| 93 | /**  | 
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| 94 | * Returns the format produced by this renderer.  | 
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| 95 | *  | 
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| 96 | * @return string always 'xhtml'  | 
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| 97 | */  | 
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| 98 |     function getFormat() { | 
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| 101 | |||
| 102 | /**  | 
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| 103 | * Initialize the document  | 
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| 104 | */  | 
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| 105 |     function document_start() { | 
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| 106 | //reset some internals  | 
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| 107 | $this->toc = array();  | 
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| 108 | $this->headers = array();  | 
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| 109 | }  | 
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| 110 | |||
| 111 | /**  | 
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| 112 | * Finalize the document  | 
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| 113 | */  | 
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| 114 |     function document_end() { | 
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| 115 | // Finish open section edits.  | 
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| 116 |         while(count($this->sectionedits) > 0) { | 
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| 117 |             if($this->sectionedits[count($this->sectionedits) - 1][1] <= 1) { | 
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| 118 | // If there is only one section, do not write a section edit  | 
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| 119 | // marker.  | 
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| 120 | array_pop($this->sectionedits);  | 
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| 121 |             } else { | 
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| 122 | $this->finishSectionEdit();  | 
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| 123 | }  | 
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| 124 | }  | 
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| 125 | |||
| 126 |         if(count($this->footnotes) > 0) { | 
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| 127 | $this->doc .= '<div class="footnotes">'.DOKU_LF;  | 
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| 128 | |||
| 129 |             foreach($this->footnotes as $id => $footnote) { | 
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| 130 | // check its not a placeholder that indicates actual footnote text is elsewhere  | 
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| 131 |                 if(substr($footnote, 0, 5) != "@@FNT") { | 
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| 132 | |||
| 133 | // open the footnote and set the anchor and backlink  | 
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| 134 | $this->doc .= '<div class="fn">';  | 
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| 135 | $this->doc .= '<sup><a href="#fnt__'.$id.'" id="fn__'.$id.'" class="fn_bot">';  | 
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| 136 | $this->doc .= $id.')</a></sup> '.DOKU_LF;  | 
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| 137 | |||
| 138 | // get any other footnotes that use the same markup  | 
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| 139 | $alt = array_keys($this->footnotes, "@@FNT$id");  | 
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| 140 | |||
| 141 |                     if(count($alt)) { | 
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| 142 |                         foreach($alt as $ref) { | 
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| 143 | // set anchor and backlink for the other footnotes  | 
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| 144 | $this->doc .= ', <sup><a href="#fnt__'.($ref).'" id="fn__'.($ref).'" class="fn_bot">';  | 
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| 145 | $this->doc .= ($ref).')</a></sup> '.DOKU_LF;  | 
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| 146 | }  | 
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| 147 | }  | 
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| 148 | |||
| 149 | // add footnote markup and close this footnote  | 
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| 150 | $this->doc .= $footnote;  | 
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| 151 | $this->doc .= '</div>'.DOKU_LF;  | 
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| 152 | }  | 
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| 153 | }  | 
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| 154 | $this->doc .= '</div>'.DOKU_LF;  | 
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| 155 | }  | 
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| 156 | |||
| 157 | // Prepare the TOC  | 
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| 158 | global $conf;  | 
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| 159 |         if($this->info['toc'] && is_array($this->toc) && $conf['tocminheads'] && count($this->toc) >= $conf['tocminheads']) { | 
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| 160 | global $TOC;  | 
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| 161 | $TOC = $this->toc;  | 
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| 162 | }  | 
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| 163 | |||
| 164 | // make sure there are no empty paragraphs  | 
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| 165 |         $this->doc = preg_replace('#<p>\s*</p>#', '', $this->doc); | 
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| 166 | }  | 
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| 167 | |||
| 168 | /**  | 
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| 169 | * Add an item to the TOC  | 
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| 170 | *  | 
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| 171 | * @param string $id the hash link  | 
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| 172 | * @param string $text the text to display  | 
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| 173 | * @param int $level the nesting level  | 
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| 174 | */  | 
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| 175 |     function toc_additem($id, $text, $level) { | 
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| 176 | global $conf;  | 
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| 177 | |||
| 178 | //handle TOC  | 
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| 179 |         if($level >= $conf['toptoclevel'] && $level <= $conf['maxtoclevel']) { | 
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| 180 | $this->toc[] = html_mktocitem($id, $text, $level - $conf['toptoclevel'] + 1);  | 
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| 181 | }  | 
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| 182 | }  | 
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| 183 | |||
| 184 | /**  | 
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| 185 | * Render a heading  | 
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| 186 | *  | 
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| 187 | * @param string $text the text to display  | 
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| 188 | * @param int $level header level  | 
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| 189 | * @param int $pos byte position in the original source  | 
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| 190 | */  | 
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| 191 |     function header($text, $level, $pos) { | 
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| 192 | global $conf;  | 
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| 193 | |||
| 194 | if(!$text) return; //skip empty headlines  | 
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| 195 | |||
| 196 | $hid = $this->_headerToLink($text, true);  | 
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| 197 | |||
| 198 | //only add items within configured levels  | 
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| 199 | $this->toc_additem($hid, $text, $level);  | 
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| 200 | |||
| 201 | // adjust $node to reflect hierarchy of levels  | 
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| 202 | $this->node[$level - 1]++;  | 
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| 203 |         if($level < $this->lastlevel) { | 
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| 204 |             for($i = 0; $i < $this->lastlevel - $level; $i++) { | 
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| 205 | $this->node[$this->lastlevel - $i - 1] = 0;  | 
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| 206 | }  | 
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| 207 | }  | 
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| 208 | $this->lastlevel = $level;  | 
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| 209 | |||
| 210 | if($level <= $conf['maxseclevel'] &&  | 
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| 211 | count($this->sectionedits) > 0 &&  | 
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| 212 | $this->sectionedits[count($this->sectionedits) - 1][2] === 'section'  | 
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| 213 |         ) { | 
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| 214 | $this->finishSectionEdit($pos - 1);  | 
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| 215 | }  | 
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| 216 | |||
| 217 | // write the header  | 
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| 218 | $this->doc .= DOKU_LF.'<h'.$level;  | 
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| 219 |         if($level <= $conf['maxseclevel']) { | 
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| 220 | $this->doc .= ' class="'.$this->startSectionEdit($pos, 'section', $text).'"';  | 
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| 221 | }  | 
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| 222 | $this->doc .= ' id="'.$hid.'">';  | 
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| 223 | $this->doc .= $this->_xmlEntities($text);  | 
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| 224 | $this->doc .= "</h$level>".DOKU_LF;  | 
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| 225 | }  | 
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| 226 | |||
| 227 | /**  | 
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| 228 | * Open a new section  | 
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| 229 | *  | 
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| 230 | * @param int $level section level (as determined by the previous header)  | 
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| 231 | */  | 
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| 232 |     function section_open($level) { | 
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| 235 | |||
| 236 | /**  | 
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| 237 | * Close the current section  | 
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| 238 | */  | 
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| 239 |     function section_close() { | 
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| 242 | |||
| 243 | /**  | 
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| 244 | * Render plain text data  | 
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| 245 | *  | 
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| 246 | * @param $text  | 
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| 247 | */  | 
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| 248 |     function cdata($text) { | 
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| 251 | |||
| 252 | /**  | 
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| 253 | * Open a paragraph  | 
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| 254 | */  | 
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| 255 |     function p_open() { | 
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| 258 | |||
| 259 | /**  | 
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| 260 | * Close a paragraph  | 
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| 261 | */  | 
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| 262 |     function p_close() { | 
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| 265 | |||
| 266 | /**  | 
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| 267 | * Create a line break  | 
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| 268 | */  | 
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| 269 |     function linebreak() { | 
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| 272 | |||
| 273 | /**  | 
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| 274 | * Create a horizontal line  | 
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| 275 | */  | 
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| 276 |     function hr() { | 
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| 279 | |||
| 280 | /**  | 
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| 281 | * Start strong (bold) formatting  | 
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| 282 | */  | 
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| 283 |     function strong_open() { | 
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| 286 | |||
| 287 | /**  | 
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| 288 | * Stop strong (bold) formatting  | 
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| 289 | */  | 
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| 290 |     function strong_close() { | 
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| 293 | |||
| 294 | /**  | 
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| 295 | * Start emphasis (italics) formatting  | 
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| 296 | */  | 
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| 297 |     function emphasis_open() { | 
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| 300 | |||
| 301 | /**  | 
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| 302 | * Stop emphasis (italics) formatting  | 
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| 303 | */  | 
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| 304 |     function emphasis_close() { | 
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| 307 | |||
| 308 | /**  | 
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| 309 | * Start underline formatting  | 
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| 310 | */  | 
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| 311 |     function underline_open() { | 
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| 314 | |||
| 315 | /**  | 
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| 316 | * Stop underline formatting  | 
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| 317 | */  | 
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| 318 |     function underline_close() { | 
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| 321 | |||
| 322 | /**  | 
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| 323 | * Start monospace formatting  | 
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| 324 | */  | 
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| 325 |     function monospace_open() { | 
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| 328 | |||
| 329 | /**  | 
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| 330 | * Stop monospace formatting  | 
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| 331 | */  | 
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| 332 |     function monospace_close() { | 
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| 335 | |||
| 336 | /**  | 
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| 337 | * Start a subscript  | 
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| 338 | */  | 
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| 339 |     function subscript_open() { | 
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| 342 | |||
| 343 | /**  | 
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| 344 | * Stop a subscript  | 
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| 345 | */  | 
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| 346 |     function subscript_close() { | 
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| 349 | |||
| 350 | /**  | 
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| 351 | * Start a superscript  | 
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| 352 | */  | 
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| 353 |     function superscript_open() { | 
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| 356 | |||
| 357 | /**  | 
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| 358 | * Stop a superscript  | 
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| 359 | */  | 
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| 360 |     function superscript_close() { | 
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| 363 | |||
| 364 | /**  | 
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| 365 | * Start deleted (strike-through) formatting  | 
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| 366 | */  | 
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| 367 |     function deleted_open() { | 
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| 370 | |||
| 371 | /**  | 
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| 372 | * Stop deleted (strike-through) formatting  | 
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| 373 | */  | 
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| 374 |     function deleted_close() { | 
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| 377 | |||
| 378 | /**  | 
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| 379 | * Callback for footnote start syntax  | 
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| 380 | *  | 
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| 381 | * All following content will go to the footnote instead of  | 
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| 382 | * the document. To achieve this the previous rendered content  | 
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| 383 | * is moved to $store and $doc is cleared  | 
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| 384 | *  | 
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| 385 | * @author Andreas Gohr <[email protected]>  | 
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| 386 | */  | 
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| 387 |     function footnote_open() { | 
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| 388 | |||
| 389 | // move current content to store and record footnote  | 
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| 390 | $this->store = $this->doc;  | 
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| 391 | $this->doc = '';  | 
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| 392 | }  | 
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| 393 | |||
| 394 | /**  | 
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| 395 | * Callback for footnote end syntax  | 
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| 396 | *  | 
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| 397 | * All rendered content is moved to the $footnotes array and the old  | 
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| 398 | * content is restored from $store again  | 
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| 399 | *  | 
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| 400 | * @author Andreas Gohr  | 
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| 401 | */  | 
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| 402 |     function footnote_close() { | 
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| 403 | /** @var $fnid int takes track of seen footnotes, assures they are unique even across multiple docs FS#2841 */  | 
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| 404 | static $fnid = 0;  | 
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| 405 | // assign new footnote id (we start at 1)  | 
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| 406 | $fnid++;  | 
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| 407 | |||
| 408 | // recover footnote into the stack and restore old content  | 
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| 409 | $footnote = $this->doc;  | 
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| 410 | $this->doc = $this->store;  | 
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| 411 | $this->store = '';  | 
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| 412 | |||
| 413 | // check to see if this footnote has been seen before  | 
            ||
| 414 | $i = array_search($footnote, $this->footnotes);  | 
            ||
| 415 | |||
| 416 |         if($i === false) { | 
            ||
| 417 | // its a new footnote, add it to the $footnotes array  | 
            ||
| 418 | $this->footnotes[$fnid] = $footnote;  | 
            ||
| 419 |         } else { | 
            ||
| 420 | // seen this one before, save a placeholder  | 
            ||
| 421 | $this->footnotes[$fnid] = "@@FNT".($i);  | 
            ||
| 422 | }  | 
            ||
| 423 | |||
| 424 | // output the footnote reference and link  | 
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| 425 | $this->doc .= '<sup><a href="#fn__'.$fnid.'" id="fnt__'.$fnid.'" class="fn_top">'.$fnid.')</a></sup>';  | 
            ||
| 426 | }  | 
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| 427 | |||
| 428 | /**  | 
            ||
| 429 | * Open an unordered list  | 
            ||
| 430 | */  | 
            ||
| 431 |     function listu_open() { | 
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| 434 | |||
| 435 | /**  | 
            ||
| 436 | * Close an unordered list  | 
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| 437 | */  | 
            ||
| 438 |     function listu_close() { | 
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| 441 | |||
| 442 | /**  | 
            ||
| 443 | * Open an ordered list  | 
            ||
| 444 | */  | 
            ||
| 445 |     function listo_open() { | 
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| 448 | |||
| 449 | /**  | 
            ||
| 450 | * Close an ordered list  | 
            ||
| 451 | */  | 
            ||
| 452 |     function listo_close() { | 
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| 455 | |||
| 456 | /**  | 
            ||
| 457 | * Open a list item  | 
            ||
| 458 | *  | 
            ||
| 459 | * @param int $level the nesting level  | 
            ||
| 460 | * @param bool $node true when a node; false when a leaf  | 
            ||
| 461 | */  | 
            ||
| 462 |     function listitem_open($level, $node=false) { | 
            ||
| 466 | |||
| 467 | /**  | 
            ||
| 468 | * Close a list item  | 
            ||
| 469 | */  | 
            ||
| 470 |     function listitem_close() { | 
            ||
| 473 | |||
| 474 | /**  | 
            ||
| 475 | * Start the content of a list item  | 
            ||
| 476 | */  | 
            ||
| 477 |     function listcontent_open() { | 
            ||
| 480 | |||
| 481 | /**  | 
            ||
| 482 | * Stop the content of a list item  | 
            ||
| 483 | */  | 
            ||
| 484 |     function listcontent_close() { | 
            ||
| 487 | |||
| 488 | /**  | 
            ||
| 489 | * Output unformatted $text  | 
            ||
| 490 | *  | 
            ||
| 491 | * Defaults to $this->cdata()  | 
            ||
| 492 | *  | 
            ||
| 493 | * @param string $text  | 
            ||
| 494 | */  | 
            ||
| 495 |     function unformatted($text) { | 
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| 498 | |||
| 499 | /**  | 
            ||
| 500 | * Execute PHP code if allowed  | 
            ||
| 501 | *  | 
            ||
| 502 | * @param string $text PHP code that is either executed or printed  | 
            ||
| 503 | * @param string $wrapper html element to wrap result if $conf['phpok'] is okff  | 
            ||
| 504 | *  | 
            ||
| 505 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 506 | */  | 
            ||
| 507 |     function php($text, $wrapper = 'code') { | 
            ||
| 508 | global $conf;  | 
            ||
| 509 | |||
| 510 |         if($conf['phpok']) { | 
            ||
| 511 | ob_start();  | 
            ||
| 512 | eval($text);  | 
            ||
| 513 | $this->doc .= ob_get_contents();  | 
            ||
| 514 | ob_end_clean();  | 
            ||
| 515 |         } else { | 
            ||
| 516 | $this->doc .= p_xhtml_cached_geshi($text, 'php', $wrapper);  | 
            ||
| 517 | }  | 
            ||
| 518 | }  | 
            ||
| 519 | |||
| 520 | /**  | 
            ||
| 521 | * Output block level PHP code  | 
            ||
| 522 | *  | 
            ||
| 523 | * If $conf['phpok'] is true this should evaluate the given code and append the result  | 
            ||
| 524 | * to $doc  | 
            ||
| 525 | *  | 
            ||
| 526 | * @param string $text The PHP code  | 
            ||
| 527 | */  | 
            ||
| 528 |     function phpblock($text) { | 
            ||
| 531 | |||
| 532 | /**  | 
            ||
| 533 | * Insert HTML if allowed  | 
            ||
| 534 | *  | 
            ||
| 535 | * @param string $text html text  | 
            ||
| 536 | * @param string $wrapper html element to wrap result if $conf['htmlok'] is okff  | 
            ||
| 537 | *  | 
            ||
| 538 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 539 | */  | 
            ||
| 540 |     function html($text, $wrapper = 'code') { | 
            ||
| 541 | global $conf;  | 
            ||
| 542 | |||
| 543 |         if($conf['htmlok']) { | 
            ||
| 544 | $this->doc .= $text;  | 
            ||
| 545 |         } else { | 
            ||
| 546 | $this->doc .= p_xhtml_cached_geshi($text, 'html4strict', $wrapper);  | 
            ||
| 547 | }  | 
            ||
| 548 | }  | 
            ||
| 549 | |||
| 550 | /**  | 
            ||
| 551 | * Output raw block-level HTML  | 
            ||
| 552 | *  | 
            ||
| 553 | * If $conf['htmlok'] is true this should add the code as is to $doc  | 
            ||
| 554 | *  | 
            ||
| 555 | * @param string $text The HTML  | 
            ||
| 556 | */  | 
            ||
| 557 |     function htmlblock($text) { | 
            ||
| 560 | |||
| 561 | /**  | 
            ||
| 562 | * Start a block quote  | 
            ||
| 563 | */  | 
            ||
| 564 |     function quote_open() { | 
            ||
| 567 | |||
| 568 | /**  | 
            ||
| 569 | * Stop a block quote  | 
            ||
| 570 | */  | 
            ||
| 571 |     function quote_close() { | 
            ||
| 574 | |||
| 575 | /**  | 
            ||
| 576 | * Output preformatted text  | 
            ||
| 577 | *  | 
            ||
| 578 | * @param string $text  | 
            ||
| 579 | */  | 
            ||
| 580 |     function preformatted($text) { | 
            ||
| 583 | |||
| 584 | /**  | 
            ||
| 585 | * Display text as file content, optionally syntax highlighted  | 
            ||
| 586 | *  | 
            ||
| 587 | * @param string $text text to show  | 
            ||
| 588 | * @param string $language programming language to use for syntax highlighting  | 
            ||
| 589 | * @param string $filename file path label  | 
            ||
| 590 | */  | 
            ||
| 591 |     function file($text, $language = null, $filename = null) { | 
            ||
| 594 | |||
| 595 | /**  | 
            ||
| 596 | * Display text as code content, optionally syntax highlighted  | 
            ||
| 597 | *  | 
            ||
| 598 | * @param string $text text to show  | 
            ||
| 599 | * @param string $language programming language to use for syntax highlighting  | 
            ||
| 600 | * @param string $filename file path label  | 
            ||
| 601 | */  | 
            ||
| 602 |     function code($text, $language = null, $filename = null) { | 
            ||
| 605 | |||
| 606 | /**  | 
            ||
| 607 | * Use GeSHi to highlight language syntax in code and file blocks  | 
            ||
| 608 | *  | 
            ||
| 609 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 610 | * @param string $type code|file  | 
            ||
| 611 | * @param string $text text to show  | 
            ||
| 612 | * @param string $language programming language to use for syntax highlighting  | 
            ||
| 613 | * @param string $filename file path label  | 
            ||
| 614 | */  | 
            ||
| 615 |     function _highlight($type, $text, $language = null, $filename = null) { | 
            ||
| 616 | global $ID;  | 
            ||
| 617 | global $lang;  | 
            ||
| 618 | |||
| 619 |         if($filename) { | 
            ||
| 620 | // add icon  | 
            ||
| 621 | list($ext) = mimetype($filename, false);  | 
            ||
| 622 |             $class = preg_replace('/[^_\-a-z0-9]+/i', '_', $ext); | 
            ||
| 623 | $class = 'mediafile mf_'.$class;  | 
            ||
| 624 | |||
| 625 | $this->doc .= '<dl class="'.$type.'">'.DOKU_LF;  | 
            ||
| 626 |             $this->doc .= '<dt><a href="'.exportlink($ID, 'code', array('codeblock' => $this->_codeblock)).'" title="'.$lang['download'].'" class="'.$class.'">'; | 
            ||
| 627 | $this->doc .= hsc($filename);  | 
            ||
| 628 | $this->doc .= '</a></dt>'.DOKU_LF.'<dd>';  | 
            ||
| 629 | }  | 
            ||
| 630 | |||
| 631 |         if($text{0} == "\n") { | 
            ||
| 632 | $text = substr($text, 1);  | 
            ||
| 633 | }  | 
            ||
| 634 |         if(substr($text, -1) == "\n") { | 
            ||
| 635 | $text = substr($text, 0, -1);  | 
            ||
| 636 | }  | 
            ||
| 637 | |||
| 638 |         if(is_null($language)) { | 
            ||
| 639 | $this->doc .= '<pre class="'.$type.'">'.$this->_xmlEntities($text).'</pre>'.DOKU_LF;  | 
            ||
| 640 |         } else { | 
            ||
| 641 | $class = 'code'; //we always need the code class to make the syntax highlighting apply  | 
            ||
| 642 | if($type != 'code') $class .= ' '.$type;  | 
            ||
| 643 | |||
| 644 | $this->doc .= "<pre class=\"$class $language\">".p_xhtml_cached_geshi($text, $language, '').'</pre>'.DOKU_LF;  | 
            ||
| 645 | }  | 
            ||
| 646 | |||
| 647 |         if($filename) { | 
            ||
| 648 | $this->doc .= '</dd></dl>'.DOKU_LF;  | 
            ||
| 649 | }  | 
            ||
| 650 | |||
| 651 | $this->_codeblock++;  | 
            ||
| 652 | }  | 
            ||
| 653 | |||
| 654 | /**  | 
            ||
| 655 | * Format an acronym  | 
            ||
| 656 | *  | 
            ||
| 657 | * Uses $this->acronyms  | 
            ||
| 658 | *  | 
            ||
| 659 | * @param string $acronym  | 
            ||
| 660 | */  | 
            ||
| 661 |     function acronym($acronym) { | 
            ||
| 662 | |||
| 663 |         if(array_key_exists($acronym, $this->acronyms)) { | 
            ||
| 664 | |||
| 665 | $title = $this->_xmlEntities($this->acronyms[$acronym]);  | 
            ||
| 666 | |||
| 667 | $this->doc .= '<abbr title="'.$title  | 
            ||
| 668 | .'">'.$this->_xmlEntities($acronym).'</abbr>';  | 
            ||
| 669 | |||
| 670 |         } else { | 
            ||
| 671 | $this->doc .= $this->_xmlEntities($acronym);  | 
            ||
| 672 | }  | 
            ||
| 673 | }  | 
            ||
| 674 | |||
| 675 | /**  | 
            ||
| 676 | * Format a smiley  | 
            ||
| 677 | *  | 
            ||
| 678 | * Uses $this->smiley  | 
            ||
| 679 | *  | 
            ||
| 680 | * @param string $smiley  | 
            ||
| 681 | */  | 
            ||
| 682 |     function smiley($smiley) { | 
            ||
| 683 |         if(array_key_exists($smiley, $this->smileys)) { | 
            ||
| 684 | $this->doc .= '<img src="'.DOKU_BASE.'lib/images/smileys/'.$this->smileys[$smiley].  | 
            ||
| 685 | '" class="icon" alt="'.  | 
            ||
| 686 | $this->_xmlEntities($smiley).'" />';  | 
            ||
| 687 |         } else { | 
            ||
| 688 | $this->doc .= $this->_xmlEntities($smiley);  | 
            ||
| 689 | }  | 
            ||
| 690 | }  | 
            ||
| 691 | |||
| 692 | /**  | 
            ||
| 693 | * Format an entity  | 
            ||
| 694 | *  | 
            ||
| 695 | * Entities are basically small text replacements  | 
            ||
| 696 | *  | 
            ||
| 697 | * Uses $this->entities  | 
            ||
| 698 | *  | 
            ||
| 699 | * @param string $entity  | 
            ||
| 700 | */  | 
            ||
| 701 |     function entity($entity) { | 
            ||
| 702 |         if(array_key_exists($entity, $this->entities)) { | 
            ||
| 703 | $this->doc .= $this->entities[$entity];  | 
            ||
| 704 |         } else { | 
            ||
| 705 | $this->doc .= $this->_xmlEntities($entity);  | 
            ||
| 706 | }  | 
            ||
| 707 | }  | 
            ||
| 708 | |||
| 709 | /**  | 
            ||
| 710 | * Typographically format a multiply sign  | 
            ||
| 711 | *  | 
            ||
| 712 | * Example: ($x=640, $y=480) should result in "640×480"  | 
            ||
| 713 | *  | 
            ||
| 714 | * @param string|int $x first value  | 
            ||
| 715 | * @param string|int $y second value  | 
            ||
| 716 | */  | 
            ||
| 717 |     function multiplyentity($x, $y) { | 
            ||
| 720 | |||
| 721 | /**  | 
            ||
| 722 | * Render an opening single quote char (language specific)  | 
            ||
| 723 | */  | 
            ||
| 724 |     function singlequoteopening() { | 
            ||
| 728 | |||
| 729 | /**  | 
            ||
| 730 | * Render a closing single quote char (language specific)  | 
            ||
| 731 | */  | 
            ||
| 732 |     function singlequoteclosing() { | 
            ||
| 736 | |||
| 737 | /**  | 
            ||
| 738 | * Render an apostrophe char (language specific)  | 
            ||
| 739 | */  | 
            ||
| 740 |     function apostrophe() { | 
            ||
| 744 | |||
| 745 | /**  | 
            ||
| 746 | * Render an opening double quote char (language specific)  | 
            ||
| 747 | */  | 
            ||
| 748 |     function doublequoteopening() { | 
            ||
| 752 | |||
| 753 | /**  | 
            ||
| 754 | * Render an closinging double quote char (language specific)  | 
            ||
| 755 | */  | 
            ||
| 756 |     function doublequoteclosing() { | 
            ||
| 760 | |||
| 761 | /**  | 
            ||
| 762 | * Render a CamelCase link  | 
            ||
| 763 | *  | 
            ||
| 764 | * @param string $link The link name  | 
            ||
| 765 | * @param bool $returnonly whether to return html or write to doc attribute  | 
            ||
| 766 | * @see http://en.wikipedia.org/wiki/CamelCase  | 
            ||
| 767 | */  | 
            ||
| 768 |     function camelcaselink($link, $returnonly = false) { | 
            ||
| 769 |         if($returnonly) { | 
            ||
| 770 | return $this->internallink($link, $link, null, true);  | 
            ||
| 771 |         } else { | 
            ||
| 772 | $this->internallink($link, $link);  | 
            ||
| 773 | }  | 
            ||
| 774 | }  | 
            ||
| 775 | |||
| 776 | /**  | 
            ||
| 777 | * Render a page local link  | 
            ||
| 778 | *  | 
            ||
| 779 | * @param string $hash hash link identifier  | 
            ||
| 780 | * @param string $name name for the link  | 
            ||
| 781 | * @param bool $returnonly whether to return html or write to doc attribute  | 
            ||
| 782 | */  | 
            ||
| 783 |     function locallink($hash, $name = null, $returnonly = false) { | 
            ||
| 784 | global $ID;  | 
            ||
| 785 | $name = $this->_getLinkTitle($name, $hash, $isImage);  | 
            ||
| 786 | $hash = $this->_headerToLink($hash);  | 
            ||
| 787 | $title = $ID.' ↵';  | 
            ||
| 788 | |||
| 789 | $doc = '<a href="#'.$hash.'" title="'.$title.'" class="wikilink1">';  | 
            ||
| 790 | $doc .= $name;  | 
            ||
| 791 | $doc .= '</a>';  | 
            ||
| 792 | |||
| 793 |         if($returnonly) { | 
            ||
| 794 | return $doc;  | 
            ||
| 795 |         } else { | 
            ||
| 796 | $this->doc .= $doc;  | 
            ||
| 797 | }  | 
            ||
| 798 | }  | 
            ||
| 799 | |||
| 800 | /**  | 
            ||
| 801 | * Render an internal Wiki Link  | 
            ||
| 802 | *  | 
            ||
| 803 | * $search,$returnonly & $linktype are not for the renderer but are used  | 
            ||
| 804 | * elsewhere - no need to implement them in other renderers  | 
            ||
| 805 | *  | 
            ||
| 806 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 807 | * @param string $id pageid  | 
            ||
| 808 | * @param string|null $name link name  | 
            ||
| 809 | * @param string|null $search adds search url param  | 
            ||
| 810 | * @param bool $returnonly whether to return html or write to doc attribute  | 
            ||
| 811 | * @param string $linktype type to set use of headings  | 
            ||
| 812 | * @return void|string writes to doc attribute or returns html depends on $returnonly  | 
            ||
| 813 | */  | 
            ||
| 814 |     function internallink($id, $name = null, $search = null, $returnonly = false, $linktype = 'content') { | 
            ||
| 896 | |||
| 897 | /**  | 
            ||
| 898 | * Render an external link  | 
            ||
| 899 | *  | 
            ||
| 900 | * @param string $url full URL with scheme  | 
            ||
| 901 | * @param string|array $name name for the link, array for media file  | 
            ||
| 902 | * @param bool $returnonly whether to return html or write to doc attribute  | 
            ||
| 903 | */  | 
            ||
| 904 |     function externallink($url, $name = null, $returnonly = false) { | 
            ||
| 905 | global $conf;  | 
            ||
| 906 | |||
| 907 | $name = $this->_getLinkTitle($name, $url, $isImage);  | 
            ||
| 908 | |||
| 909 | // url might be an attack vector, only allow registered protocols  | 
            ||
| 910 | if(is_null($this->schemes)) $this->schemes = getSchemes();  | 
            ||
| 911 |         list($scheme) = explode('://', $url); | 
            ||
| 955 | |||
| 956 | /**  | 
            ||
| 957 | * Render an interwiki link  | 
            ||
| 958 | *  | 
            ||
| 959 | * You may want to use $this->_resolveInterWiki() here  | 
            ||
| 960 | *  | 
            ||
| 961 | * @param string $match original link - probably not much use  | 
            ||
| 962 | * @param string|array $name name for the link, array for media file  | 
            ||
| 963 | * @param string $wikiName indentifier (shortcut) for the remote wiki  | 
            ||
| 964 | * @param string $wikiUri the fragment parsed from the original link  | 
            ||
| 965 | * @param bool $returnonly whether to return html or write to doc attribute  | 
            ||
| 966 | */  | 
            ||
| 967 |     function interwikilink($match, $name = null, $wikiName, $wikiUri, $returnonly = false) { | 
            ||
| 1013 | |||
| 1014 | /**  | 
            ||
| 1015 | * Link to windows share  | 
            ||
| 1016 | *  | 
            ||
| 1017 | * @param string $url the link  | 
            ||
| 1018 | * @param string|array $name name for the link, array for media file  | 
            ||
| 1019 | * @param bool $returnonly whether to return html or write to doc attribute  | 
            ||
| 1020 | */  | 
            ||
| 1021 |     function windowssharelink($url, $name = null, $returnonly = false) { | 
            ||
| 1050 | |||
| 1051 | /**  | 
            ||
| 1052 | * Render a linked E-Mail Address  | 
            ||
| 1053 | *  | 
            ||
| 1054 | * Honors $conf['mailguard'] setting  | 
            ||
| 1055 | *  | 
            ||
| 1056 | * @param string $address Email-Address  | 
            ||
| 1057 | * @param string|array $name name for the link, array for media file  | 
            ||
| 1058 | * @param bool $returnonly whether to return html or write to doc attribute  | 
            ||
| 1059 | */  | 
            ||
| 1060 |     function emaillink($address, $name = null, $returnonly = false) { | 
            ||
| 1098 | |||
| 1099 | /**  | 
            ||
| 1100 | * Render an internal media file  | 
            ||
| 1101 | *  | 
            ||
| 1102 | * @param string $src media ID  | 
            ||
| 1103 | * @param string $title descriptive text  | 
            ||
| 1104 | * @param string $align left|center|right  | 
            ||
| 1105 | * @param int $width width of media in pixel  | 
            ||
| 1106 | * @param int $height height of media in pixel  | 
            ||
| 1107 | * @param string $cache cache|recache|nocache  | 
            ||
| 1108 | * @param string $linking linkonly|detail|nolink  | 
            ||
| 1109 | * @param bool $return return HTML instead of adding to $doc  | 
            ||
| 1110 | * @return void|string  | 
            ||
| 1111 | */  | 
            ||
| 1112 | function internalmedia($src, $title = null, $align = null, $width = null,  | 
            ||
| 1152 | |||
| 1153 | /**  | 
            ||
| 1154 | * Render an external media file  | 
            ||
| 1155 | *  | 
            ||
| 1156 | * @param string $src full media URL  | 
            ||
| 1157 | * @param string $title descriptive text  | 
            ||
| 1158 | * @param string $align left|center|right  | 
            ||
| 1159 | * @param int $width width of media in pixel  | 
            ||
| 1160 | * @param int $height height of media in pixel  | 
            ||
| 1161 | * @param string $cache cache|recache|nocache  | 
            ||
| 1162 | * @param string $linking linkonly|detail|nolink  | 
            ||
| 1163 | * @param bool $return return HTML instead of adding to $doc  | 
            ||
| 1164 | */  | 
            ||
| 1165 | function externalmedia($src, $title = null, $align = null, $width = null,  | 
            ||
| 1198 | |||
| 1199 | /**  | 
            ||
| 1200 | * Renders an RSS feed  | 
            ||
| 1201 | *  | 
            ||
| 1202 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 1203 | */  | 
            ||
| 1204 |     function rss($url, $params) { | 
            ||
| 1287 | |||
| 1288 | /**  | 
            ||
| 1289 | * Start a table  | 
            ||
| 1290 | *  | 
            ||
| 1291 | * @param int $maxcols maximum number of columns  | 
            ||
| 1292 | * @param int $numrows NOT IMPLEMENTED  | 
            ||
| 1293 | * @param int $pos byte position in the original source  | 
            ||
| 1294 | */  | 
            ||
| 1295 |     function table_open($maxcols = null, $numrows = null, $pos = null) { | 
            ||
| 1305 | |||
| 1306 | /**  | 
            ||
| 1307 | * Close a table  | 
            ||
| 1308 | *  | 
            ||
| 1309 | * @param int $pos byte position in the original source  | 
            ||
| 1310 | */  | 
            ||
| 1311 |     function table_close($pos = null) { | 
            ||
| 1317 | |||
| 1318 | /**  | 
            ||
| 1319 | * Open a table header  | 
            ||
| 1320 | */  | 
            ||
| 1321 |     function tablethead_open() { | 
            ||
| 1324 | |||
| 1325 | /**  | 
            ||
| 1326 | * Close a table header  | 
            ||
| 1327 | */  | 
            ||
| 1328 |     function tablethead_close() { | 
            ||
| 1331 | |||
| 1332 | /**  | 
            ||
| 1333 | * Open a table body  | 
            ||
| 1334 | */  | 
            ||
| 1335 |     function tabletbody_open() { | 
            ||
| 1338 | |||
| 1339 | /**  | 
            ||
| 1340 | * Close a table body  | 
            ||
| 1341 | */  | 
            ||
| 1342 |     function tabletbody_close() { | 
            ||
| 1345 | |||
| 1346 | /**  | 
            ||
| 1347 | * Open a table row  | 
            ||
| 1348 | */  | 
            ||
| 1349 |     function tablerow_open() { | 
            ||
| 1355 | |||
| 1356 | /**  | 
            ||
| 1357 | * Close a table row  | 
            ||
| 1358 | */  | 
            ||
| 1359 |     function tablerow_close() { | 
            ||
| 1362 | |||
| 1363 | /**  | 
            ||
| 1364 | * Open a table header cell  | 
            ||
| 1365 | *  | 
            ||
| 1366 | * @param int $colspan  | 
            ||
| 1367 | * @param string $align left|center|right  | 
            ||
| 1368 | * @param int $rowspan  | 
            ||
| 1369 | */  | 
            ||
| 1370 |     function tableheader_open($colspan = 1, $align = null, $rowspan = 1) { | 
            ||
| 1386 | |||
| 1387 | /**  | 
            ||
| 1388 | * Close a table header cell  | 
            ||
| 1389 | */  | 
            ||
| 1390 |     function tableheader_close() { | 
            ||
| 1393 | |||
| 1394 | /**  | 
            ||
| 1395 | * Open a table cell  | 
            ||
| 1396 | *  | 
            ||
| 1397 | * @param int $colspan  | 
            ||
| 1398 | * @param string $align left|center|right  | 
            ||
| 1399 | * @param int $rowspan  | 
            ||
| 1400 | */  | 
            ||
| 1401 |     function tablecell_open($colspan = 1, $align = null, $rowspan = 1) { | 
            ||
| 1417 | |||
| 1418 | /**  | 
            ||
| 1419 | * Close a table cell  | 
            ||
| 1420 | */  | 
            ||
| 1421 |     function tablecell_close() { | 
            ||
| 1424 | |||
| 1425 | #region Utility functions  | 
            ||
| 1426 | |||
| 1427 | /**  | 
            ||
| 1428 | * Build a link  | 
            ||
| 1429 | *  | 
            ||
| 1430 | * Assembles all parts defined in $link returns HTML for the link  | 
            ||
| 1431 | *  | 
            ||
| 1432 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 1433 | */  | 
            ||
| 1434 |     function _formatLink($link) { | 
            ||
| 1463 | |||
| 1464 | /**  | 
            ||
| 1465 | * Renders internal and external media  | 
            ||
| 1466 | *  | 
            ||
| 1467 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 1468 | * @param string $src media ID  | 
            ||
| 1469 | * @param string $title descriptive text  | 
            ||
| 1470 | * @param string $align left|center|right  | 
            ||
| 1471 | * @param int $width width of media in pixel  | 
            ||
| 1472 | * @param int $height height of media in pixel  | 
            ||
| 1473 | * @param string $cache cache|recache|nocache  | 
            ||
| 1474 | * @param bool $render should the media be embedded inline or just linked  | 
            ||
| 1475 | * @return string  | 
            ||
| 1476 | */  | 
            ||
| 1477 | function _media($src, $title = null, $align = null, $width = null,  | 
            ||
| 1580 | |||
| 1581 | /**  | 
            ||
| 1582 | * Escape string for output  | 
            ||
| 1583 | *  | 
            ||
| 1584 | * @param $string  | 
            ||
| 1585 | * @return string  | 
            ||
| 1586 | */  | 
            ||
| 1587 |     function _xmlEntities($string) { | 
            ||
| 1590 | |||
| 1591 | /**  | 
            ||
| 1592 | * Creates a linkid from a headline  | 
            ||
| 1593 | *  | 
            ||
| 1594 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 1595 | * @param string $title The headline title  | 
            ||
| 1596 | * @param boolean $create Create a new unique ID?  | 
            ||
| 1597 | * @return string  | 
            ||
| 1598 | */  | 
            ||
| 1599 |     function _headerToLink($title, $create = false) { | 
            ||
| 1607 | |||
| 1608 | /**  | 
            ||
| 1609 | * Construct a title and handle images in titles  | 
            ||
| 1610 | *  | 
            ||
| 1611 | * @author Harry Fuecks <[email protected]>  | 
            ||
| 1612 | * @param string|array $title either string title or media array  | 
            ||
| 1613 | * @param string $default default title if nothing else is found  | 
            ||
| 1614 | * @param bool $isImage will be set to true if it's a media file  | 
            ||
| 1615 | * @param null|string $id linked page id (used to extract title from first heading)  | 
            ||
| 1616 | * @param string $linktype content|navigation  | 
            ||
| 1617 | * @return string HTML of the title, might be full image tag or just escaped text  | 
            ||
| 1618 | */  | 
            ||
| 1619 |     function _getLinkTitle($title, $default, &$isImage, $id = null, $linktype = 'content') { | 
            ||
| 1636 | |||
| 1637 | /**  | 
            ||
| 1638 | * Returns HTML code for images used in link titles  | 
            ||
| 1639 | *  | 
            ||
| 1640 | * @author Andreas Gohr <[email protected]>  | 
            ||
| 1641 | * @param array $img  | 
            ||
| 1642 | * @return string HTML img tag or similar  | 
            ||
| 1643 | */  | 
            ||
| 1644 |     function _imageTitle($img) { | 
            ||
| 1663 | |||
| 1664 | /**  | 
            ||
| 1665 | * helperfunction to return a basic link to a media  | 
            ||
| 1666 | *  | 
            ||
| 1667 | * used in internalmedia() and externalmedia()  | 
            ||
| 1668 | *  | 
            ||
| 1669 | * @author Pierre Spring <[email protected]>  | 
            ||
| 1670 | * @param string $src media ID  | 
            ||
| 1671 | * @param string $title descriptive text  | 
            ||
| 1672 | * @param string $align left|center|right  | 
            ||
| 1673 | * @param int $width width of media in pixel  | 
            ||
| 1674 | * @param int $height height of media in pixel  | 
            ||
| 1675 | * @param string $cache cache|recache|nocache  | 
            ||
| 1676 | * @param bool $render should the media be embedded inline or just linked  | 
            ||
| 1677 | * @return array associative array with link config  | 
            ||
| 1678 | */  | 
            ||
| 1679 |     function _getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render) { | 
            ||
| 1695 | |||
| 1696 | /**  | 
            ||
| 1697 | * Embed video(s) in HTML  | 
            ||
| 1698 | *  | 
            ||
| 1699 | * @author Anika Henke <[email protected]>  | 
            ||
| 1700 | *  | 
            ||
| 1701 | * @param string $src - ID of video to embed  | 
            ||
| 1702 | * @param int $width - width of the video in pixels  | 
            ||
| 1703 | * @param int $height - height of the video in pixels  | 
            ||
| 1704 | * @param array $atts - additional attributes for the <video> tag  | 
            ||
| 1705 | * @return string  | 
            ||
| 1706 | */  | 
            ||
| 1707 |     function _video($src, $width, $height, $atts = null) { | 
            ||
| 1761 | |||
| 1762 | /**  | 
            ||
| 1763 | * Embed audio in HTML  | 
            ||
| 1764 | *  | 
            ||
| 1765 | * @author Anika Henke <[email protected]>  | 
            ||
| 1766 | *  | 
            ||
| 1767 | * @param string $src - ID of audio to embed  | 
            ||
| 1768 | * @param array $atts - additional attributes for the <audio> tag  | 
            ||
| 1769 | * @return string  | 
            ||
| 1770 | */  | 
            ||
| 1771 |     function _audio($src, $atts = array()) { | 
            ||
| 1811 | |||
| 1812 | /**  | 
            ||
| 1813 | * _getLastMediaRevisionAt is a helperfunction to internalmedia() and _media()  | 
            ||
| 1814 | * which returns an existing media revision less or equal to rev or date_at  | 
            ||
| 1815 | *  | 
            ||
| 1816 | * @author lisps  | 
            ||
| 1817 | * @param string $media_id  | 
            ||
| 1818 | * @access protected  | 
            ||
| 1819 |      * @return string revision ('' for current) | 
            ||
| 1820 | */  | 
            ||
| 1821 |     function _getLastMediaRevisionAt($media_id){ | 
            ||
| 1826 | |||
| 1827 | #endregion  | 
            ||
| 1828 | }  | 
            ||
| 1829 | |||
| 1831 | 
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.