[Sommaire] [Imprimer]

   1  <?php
   2  // $Id: Heading.php,v 1.1 2005/01/31 15:46:52 pmjones Exp $
   3  
   4  
   5  /**
   6  * 
   7  * This class implements a Text_Wiki_Parse to find source text marked to
   8  * be a heading element, as defined by text on a line by itself prefixed
   9  * with a number of plus signs (+). The heading text itself is left in
  10  * the source, but is prefixed and suffixed with delimited tokens marking
  11  * the start and end of the heading.
  12  *
  13  * @author Paul M. Jones <pmjones@ciaweb.net>
  14  *
  15  * @package Text_Wiki
  16  *
  17  */
  18  
  19  class Text_Wiki_Parse_Heading extends Text_Wiki_Parse {
  20      
  21      
  22      /**
  23      * 
  24      * The regular expression used to parse the source text and find
  25      * matches conforming to this rule.  Used by the parse() method.
  26      * 
  27      * @access public
  28      * 
  29      * @var string
  30      * 
  31      * @see parse()
  32      * 
  33      */
  34      
  35      var $regex = '/^(\+{1,6}) (.*)/m';
  36      
  37      var $conf = array(
  38          'id_prefix' => 'toc'
  39      );
  40      
  41      /**
  42      * 
  43      * Generates a replacement for the matched text.  Token options are:
  44      * 
  45      * 'type' => ['start'|'end'] The starting or ending point of the
  46      * heading text.  The text itself is left in the source.
  47      * 
  48      * @access public
  49      *
  50      * @param array &$matches The array of matches from parse().
  51      *
  52      * @return string A pair of delimited tokens to be used as a
  53      * placeholder in the source text surrounding the heading text.
  54      *
  55      */
  56      
  57      function process(&$matches)
  58      {
  59          // keep a running count for header IDs.  we use this later
  60          // when constructing TOC entries, etc.
  61          static $id;
  62          if (! isset($id)) {
  63              $id = 0;
  64          }
  65          
  66          $prefix = htmlspecialchars($this->getConf('id_prefix'));
  67          
  68          $start = $this->wiki->addToken(
  69              $this->rule, 
  70              array(
  71                  'type' => 'start',
  72                  'level' => strlen($matches[1]),
  73                  'text' => $matches[2],
  74                  'id' => $prefix . $id ++
  75              )
  76          );
  77          
  78          $end = $this->wiki->addToken(
  79              $this->rule, 
  80              array(
  81                  'type' => 'end',
  82                  'level' => strlen($matches[1])
  83              )
  84          );
  85          
  86          return $start . $matches[2] . $end . "\n";
  87      }
  88  }
  89  ?>