geshicodetag-mediawiki-ext/GeshiCodeTag.php

   1 <?php
   2 ########################
   3 # GeshiCodeTag.php
   4 # Licensed under GPLv3
   5 # by Paul Nolasco
   6 ########################
   7
   8 // change directory accordingly
   9 require_once('geshi/geshi.php');
  10 $languagesPath = "extensions/geshicodetag/geshi/geshi";
  11
  12 // 1 - ENABLED, 0 - DISABLED
  13 $codeTag["simple"] = 1;                       // ex. <php> echo </php>
  14 $codeTag["advanced"]["mode"] = 1;             // ex. <code php n> echo </php>
  15
  16 // extra options
  17 /*
  18         strict mode - http://qbnz.com/highlighter/geshi-doc.html#using-strict-mode
  19         ex. <img src="<?php echo rand(1, 100) ?>" />
  20 */
  21 $codeTag["advanced"]["strict"] = 0;
  22
  23 #############################################
  24
  25 $wgExtensionFunctions[] = "ExtensionCodeTag";
  26 $wgExtensionCredits['parserhook'][] = array(
  27         'name' => 'GeSHiCodeTag',
  28         'author' => 'Paul Nolasco',
  29         'version' => '1.65',
  30         'description' => 'A tag to create a syntax-highlighted code using GeSHi',
  31         'url' => 'http://www.mediawiki.org/wiki/Extension:GeSHiCodeTag'
  32 );
  33 $languages = array();
  34
  35 function ExtensionCodeTag()
  36 {
  37         global $wgParser, $codeTag, $languages, $languagesPath;
  38
  39         ReadLanguages();
  40
  41         if($codeTag["advanced"]["mode"])
  42                 $wgParser->setHook('code', 'AdvancedCodeTag');
  43
  44         if($codeTag["simple"])
  45                 foreach($languages as $lang)
  46                 {
  47                      $wgParser->setHook($lang,
  48                                    create_function( '$source',
  49                                         '$geshi = new GeSHi($source,\'' . $lang . '\', \'' . $languagesPath . '\');
  50                                          return $geshi->parse_code();'
  51                      ));
  52                 }
  53 }
  54
  55 function ReadLanguages()
  56 {
  57         global $languages, $languagesPath;
  58
  59         $dirHandle = opendir($languagesPath)
  60                         or die("ERROR: Invalid directory path - [$languagesPath], Modify the value of \$languagesPath'");
  61
  62         $pattern = "^(.*)\.php$";
  63
  64         while ($file = readdir($dirHandle))
  65         {
  66                 if( eregi($pattern, $file) )
  67                         $languages[] = eregi_replace($pattern, "\\1", $file);
  68         }
  69         closedir($dirHandle);
  70 }
  71
  72 function AdvancedCodeTag ($source, $settings){
  73
  74         global $languages, $languagesPath, $codeTag;
  75         $language = array_shift($settings);      // [arg1]
  76
  77         // [arg1]
  78         if($language == '')
  79           $language='text';
  80
  81         if($language == "list")                                                 // list all languages supported
  82             return "<br>List of supported languages for <b>Geshi " . GESHI_VERSION  . "</b>:<br>"
  83                    . implode("<br>", $languages);
  84
  85         if($language != "" && !in_array($language, $languages))          // list languages if invalid argument
  86             return "<br>Invalid language argument, \"<b>" . $language . "</b>\", select one from the list:<br>"
  87                    . implode("<br>", $languages);
  88
  89         // set geshi
  90         $geshi = new GeSHi(trim($source), $language, $languagesPath);
  91         $geshi->enable_strict_mode($codeTag["advanced"]["strict"]);
  92
  93
  94         // [arg2 or more]
  95         if(in_array('n',$settings))                                                  // display line numbers
  96             $geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);
  97
  98         /*
  99            Add more GeSHi features from [ http://qbnz.com/highlighter/geshi-doc.html  ]
 100            template:
 101                   if( in_array( '<PARAMETER NAME>', $settings ) )
 102                   {
 103                         $geshi-><GESHI FUNCTION CALL>
 104                   }
 105         */
 106                                                                      // removes newlines replaces with <br />
 107         return str_replace("\n",'<br />', $geshi->parse_code());
 108 }