1<?php
2// $Id: Emphasis.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 for
8* emphasis (italics) as defined by text surrounded by two single-quotes.
9* On parsing, the text itself is left in place, but the starting and ending
10* instances of two single-quotes are replaced with tokens.
11*
12* @author Paul M. Jones <pmjones@ciaweb.net>
13*
14* @package Text_Wiki
15*
16*/
17
18class Text_Wiki_Parse_emphasis extends Text_Wiki_Parse {
19
20
21    /**
22    *
23    * The regular expression used to parse the source text and find
24    * matches conforming to this rule.  Used by the parse() method.
25    *
26    * @access public
27    *
28    * @var string
29    *
30    * @see parse()
31    *
32    */
33
34    var $regex = "/\/\/(.*?)\/\//";
35
36
37    /**
38    *
39    * Generates a replacement for the matched text.  Token options are:
40    *
41    * 'type' => ['start'|'end'] The starting or ending point of the
42    * emphasized text.  The text itself is left in the source.
43    *
44    * @access public
45    *
46    * @param array &$matches The array of matches from parse().
47    *
48    * @return string A pair of delimited tokens to be used as a
49    * placeholder in the source text surrounding the text to be
50    * emphasized.
51    *
52    */
53
54    function process(&$matches)
55    {
56        $start = $this->wiki->addToken(
57            $this->rule, array('type' => 'start')
58        );
59
60        $end = $this->wiki->addToken(
61            $this->rule, array('type' => 'end')
62        );
63
64        return $start . $matches[1] . $end;
65    }
66}
67?>