include/Text/Wiki/Parse/Default/Code.php

   1 <?php
   2
   3 /**
   4 *
   5 * Parses for text marked as a code example block.
   6 *
   7 * @category Text
   8 *
   9 * @package Text_Wiki
  10 *
  11 * @author Paul M. Jones <pmjones@php.net>
  12 *
  13 * @license LGPL
  14 *
  15 * @version $Id: Code.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $
  16 *
  17 */
  18
  19 /**
  20 *
  21 * Parses for text marked as a code example block.
  22 *
  23 * This class implements a Text_Wiki_Parse to find sections marked as code
  24 * examples.  Blocks are marked as the string <code> on a line by itself,
  25 * followed by the inline code example, and terminated with the string
  26 * </code> on a line by itself.  The code example is run through the
  27 * native PHP highlight_string() function to colorize it, then surrounded
  28 * with <pre>...</pre> tags when rendered as XHTML.
  29 *
  30 * @category Text
  31 *
  32 * @package Text_Wiki
  33 *
  34 * @author Paul M. Jones <pmjones@php.net>
  35 *
  36 */
  37
  38 class Text_Wiki_Parse_Code extends Text_Wiki_Parse {
  39
  40
  41     /**
  42     *
  43     * The regular expression used to find source text matching this
  44     * rule.
  45     *
  46     * @access public
  47     *
  48     * @var string
  49     *
  50     */
  51
  52     var $regex = '/^(\<code( .+)?\>)\n(.+)\n(\<\/code\>)(\s|$)/Umsi';
  53
  54
  55     /**
  56     *
  57     * Generates a token entry for the matched text.  Token options are:
  58     *
  59     * 'text' => The full matched text, not including the <code></code> tags.
  60     *
  61     * @access public
  62     *
  63     * @param array &$matches The array of matches from parse().
  64     *
  65     * @return A delimited token number to be used as a placeholder in
  66     * the source text.
  67     *
  68     */
  69
  70     function process(&$matches)
  71     {
  72         // are there additional attribute arguments?
  73         $args = trim($matches[2]);
  74
  75         if ($args == '') {
  76             $options = array(
  77                 'text' => $matches[3],
  78                 'attr' => array('type' => '')
  79             );
  80         } else {
  81                 // get the attributes...
  82                 $attr = $this->getAttrs($args);
  83
  84                 // ... and make sure we have a 'type'
  85                 if (! isset($attr['type'])) {
  86                         $attr['type'] = '';
  87                 }
  88
  89                 // retain the options
  90             $options = array(
  91                 'text' => $matches[3],
  92                 'attr' => $attr
  93             );
  94         }
  95
  96         return $this->wiki->addToken($this->rule, $options) . $matches[5];
  97     }
  98 }
  99 ?>