1 <?php
2 /**
3  * DokuWiki Plugin syntaxhighlightjs (Helper Component)
4  *
5  * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
6  * @author  Claud D. Park <posquit0.bj@gmail.com>
7  */
8 
9 // must be run within Dokuwiki
10 if(!defined('DOKU_INC')) die();
11 
12 class helper_plugin_syntaxhighlightjs extends DokuWiki_Plugin {
13     /**
14      * get attributes (pull apart the string between '<sxh' and '>')
15      *  and identify classes and width
16      *
17      * @author Claud D. Park <posquit0.bj@gmail.com>
18      *   (parts taken from http://www.dokuwiki.org/plugin:wrap)
19      */
20     function getAttributes($data) {
21 
22         $attr = array();
23         $tokens = preg_split('/\s+/', $data, 9);
24         $restrictedClasses = $this->getConf('restrictedClasses');
25         if ($restrictedClasses) {
26             $restrictedClasses = array_map('trim', explode(',', $this->getConf('restrictedClasses')));
27         }
28 
29         foreach ($tokens as $token) {
30             // trim unnormal chracters cause of mis-parsing
31             $token = trim($token, '<>');
32 
33             // get width
34             if (preg_match('/^\d*\.?\d+(%|px|em|ex|pt|pc|cm|mm|in)$/', $token)) {
35                 $attr['width'] = $token;
36                 continue;
37             }
38 
39             // get classes
40             // restrict token (class names) characters to prevent any malicious data
41             if (preg_match('/[^A-Za-z0-9_\-]/', $token)) continue;
42             if ($restrictedClasses) {
43                 $classIsInList = in_array(trim($token), $restrictedClasses);
44                 // disallow certain classes
45                 if ($classIsInList) continue;
46             }
47             $attr['class'] = (isset($attr['class']) ? $attr['class'].' ' : '').$token;
48         }
49 
50         return $attr;
51     }
52 
53     /**
54      * build attributes (write out classes and width)
55      */
56     function buildAttributes($data, $addClass='', $mode='xhtml') {
57 
58         $attr = $this->getAttributes($data);
59         $out = '';
60 
61         if ($mode=='xhtml') {
62             if($attr['class']) $out .= ' class="'.hsc($attr['class']).' '.$addClass.'"';
63             // if used in other plugins, they might want to add their own class(es)
64             elseif($addClass)  $out .= ' class="'.$addClass.'"';
65             // width on spans normally doesn't make much sense, but in the case of floating elements it could be used
66             if($attr['width']) {
67                 if (strpos($attr['width'],'%') !== false) {
68                     $out .= ' style="width: '.hsc($attr['width']).';"';
69                 } else {
70                     // anything but % should be 100% when the screen gets smaller
71                     $out .= ' style="width: '.hsc($attr['width']).'; max-width: 100%;"';
72                 }
73             }
74         }
75 
76         return $out;
77     }
78 }
79