[Sommaire] [Imprimer]

   1  <?php
   2  /* vim: set expandtab tabstop=4 shiftwidth=4: */
   3  // +----------------------------------------------------------------------+
   4  // | PHP version 4                                                        |
   5  // +----------------------------------------------------------------------+
   6  // | Copyright (c) 1997-2003 The PHP Group                                |
   7  // +----------------------------------------------------------------------+
   8  // | This source file is subject to version 2.0 of the PHP license,       |
   9  // | that is bundled with this package in the file LICENSE, and is        |
  10  // | available through the world-wide-web at                              |
  11  // | http://www.php.net/license/2_02.txt.                                 |
  12  // | If you did not receive a copy of the PHP license and are unable to   |
  13  // | obtain it through the world-wide-web, please send a note to          |
  14  // | license@php.net so we can mail you a copy immediately.               |
  15  // +----------------------------------------------------------------------+
  16  // | Authors: Paul M. Jones <pmjones@ciaweb.net>                          |
  17  // +----------------------------------------------------------------------+
  18  //
  19  // $Id: emphasis.php,v 1.3 2004/12/02 10:54:32 nohn Exp $
  20  
  21  
  22  /**
  23  * 
  24  * This class implements a Text_Wiki_Rule to find source text marked for
  25  * emphasis (italics) as defined by text surrounded by two single-quotes.
  26  * On parsing, the text itself is left in place, but the starting and ending
  27  * instances of two single-quotes are replaced with tokens.
  28  *
  29  * @author Paul M. Jones <pmjones@ciaweb.net>
  30  *
  31  * @package Text_Wiki
  32  *
  33  */
  34  
  35  class Text_Wiki_Rule_emphasis extends Text_Wiki_Rule {
  36      
  37      
  38      /**
  39      * 
  40      * The regular expression used to parse the source text and find
  41      * matches conforming to this rule.  Used by the parse() method.
  42      * 
  43      * @access public
  44      * 
  45      * @var string
  46      * 
  47      * @see parse()
  48      * 
  49      */
  50      
  51      var $regex = "/\/\/(()|.*)\/\//U";
  52      
  53      
  54      /**
  55      * 
  56      * Generates a replacement for the matched text.  Token options are:
  57      * 
  58      * 'type' => ['start'|'end'] The starting or ending point of the
  59      * emphasized text.  The text itself is left in the source.
  60      * 
  61      * @access public
  62      *
  63      * @param array &$matches The array of matches from parse().
  64      *
  65      * @return string A pair of delimited tokens to be used as a
  66      * placeholder in the source text surrounding the text to be
  67      * emphasized.
  68      *
  69      */
  70      
  71      function process(&$matches)
  72      {
  73          $start = $this->addToken(array('type' => 'start'));
  74          $end = $this->addToken(array('type' => 'end'));
  75          return $start . $matches[1] . $end;
  76      }
  77      
  78      
  79      /**
  80      * 
  81      * Renders a token into text matching the requested format.
  82      * 
  83      * @access public
  84      * 
  85      * @param array $options The "options" portion of the token (second
  86      * element).
  87      * 
  88      * @return string The text rendered from the token options.
  89      * 
  90      */
  91      
  92      function renderXhtml($options)
  93      {
  94          if ($options['type'] == 'start') {
  95              return '<em>';
  96          }
  97          
  98          if ($options['type'] == 'end') {
  99              return '</em>';
 100          }
 101      }
 102  }
 103  ?>