[Sommaire] [Imprimer]

   1  <?php
   2  // $Id: Interwiki.php,v 1.2 2005/02/01 03:47:37 pmjones Exp $
   3  
   4  
   5  /**
   6  * 
   7  * This class implements a Text_Wiki_Parse to find source text marked as
   8  * an Interwiki link.  See the regex for a detailed explanation of the
   9  * text matching procedure; e.g., "InterWikiName:PageName".
  10  *
  11  * @author Paul M. Jones <pmjones@ciaweb.net>
  12  *
  13  * @package Text_Wiki
  14  *
  15  */
  16  
  17  class Text_Wiki_Parse_Interwiki extends Text_Wiki_Parse {
  18      
  19      // double-colons wont trip up now
  20      var $regex = '([A-Za-z0-9_]+):((?!:)[A-Za-z0-9_\/=&~#.:;-]+)';
  21      
  22      
  23      /**
  24      * 
  25      * Parser.  We override the standard parser so we can
  26      * find both described interwiki links and standalone links.
  27      * 
  28      * @access public
  29      * 
  30      * @return void
  31      * 
  32      */
  33      
  34      function parse()
  35      {
  36          // described interwiki links
  37          $tmp_regex = '/\[' . $this->regex . ' (.+?)\]/';
  38          $this->wiki->source = preg_replace_callback(
  39              $tmp_regex,
  40              array(&$this, 'processDescr'),
  41              $this->wiki->source
  42          );
  43          
  44          // standalone interwiki links
  45          $tmp_regex = '/' . $this->regex . '/';
  46          $this->wiki->source = preg_replace_callback(
  47              $tmp_regex,
  48              array(&$this, 'process'),
  49              $this->wiki->source
  50          );
  51         
  52      }
  53      
  54      
  55      /**
  56      * 
  57      * Generates a replacement for the matched standalone interwiki text.
  58      * Token options are:
  59      * 
  60      * 'site' => The key name for the Text_Wiki interwiki array map,
  61      * usually the name of the interwiki site.
  62      * 
  63      * 'page' => The page on the target interwiki to link to.
  64      * 
  65      * 'text' => The text to display as the link.
  66      * 
  67      * @access public
  68      *
  69      * @param array &$matches The array of matches from parse().
  70      *
  71      * @return A delimited token to be used as a placeholder in
  72      * the source text, plus any text priot to the match.
  73      *
  74      */
  75      
  76      function process(&$matches)
  77      {
  78          $options = array(
  79              'site' => $matches[1],
  80              'page' => $matches[2],
  81              'text' => $matches[0]
  82          );
  83          
  84          return $this->wiki->addToken($this->rule, $options);
  85      }
  86      
  87      
  88      /**
  89      * 
  90      * Generates a replacement for described interwiki links. Token
  91      * options are:
  92      * 
  93      * 'site' => The key name for the Text_Wiki interwiki array map,
  94      * usually the name of the interwiki site.
  95      * 
  96      * 'page' => The page on the target interwiki to link to.
  97      * 
  98      * 'text' => The text to display as the link.
  99      * 
 100      * @access public
 101      *
 102      * @param array &$matches The array of matches from parse().
 103      *
 104      * @return A delimited token to be used as a placeholder in
 105      * the source text, plus any text priot to the match.
 106      *
 107      */
 108      
 109      function processDescr(&$matches)
 110      {
 111          $options = array(
 112              'site' => $matches[1],
 113              'page' => $matches[2],
 114              'text' => $matches[3]
 115          );
 116          
 117          return $this->wiki->addToken($this->rule, $options);
 118      }
 119  }
 120  ?>