Subversion Repositories Applications.papyrus

Rev

Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
248 jpm 1 
<?php
2 
// $Id: Revise.php,v 1.1 2005-01-20 19:43:20 jpm Exp $
3 
 
4 
 
5 
/**
6 
*
7 
* This class implements a Text_Wiki_Parse to find source text marked for
8 
* revision.
9 
*
10 
* @author Paul M. Jones <pmjones@ciaweb.net>
11 
*
12 
* @package Text_Wiki
13 
*
14 
*/
15 
 
16 
class Text_Wiki_Parse_Revise extends Text_Wiki_Parse {
17 
 
18 
 
19 
    /**
20 
    *
21 
    * The regular expression used to parse the source text and find
22 
    * matches conforming to this rule.  Used by the parse() method.
23 
    *
24 
    * @access public
25 
    *
26 
    * @var string
27 
    *
28 
    * @see parse()
29 
    *
30 
    */
31 
 
32 
    var $regex = "/\@\@({*?.*}*?)\@\@/U";
33 
 
34 
 
35 
    /**
36 
    *
37 
    * Config options.
38 
    *
39 
    * @access public
40 
    *
41 
    * @var array
42 
    *
43 
    */
44 
 
45 
    var $conf = array(
46 
        'delmark' => '---',
47 
        'insmark' => '+++'
48 
    );
49 
 
50 
 
51 
    /**
52 
    *
53 
    * Generates a replacement for the matched text.  Token options are:
54 
    *
55 
    * 'type' => ['start'|'end'] The starting or ending point of the
56 
    * inserted text.  The text itself is left in the source.
57 
    *
58 
    * @access public
59 
    *
60 
    * @param array &$matches The array of matches from parse().
61 
    *
62 
    * @return string A pair of delimited tokens to be used as a
63 
    * placeholder in the source text surrounding the teletype text.
64 
    *
65 
    */
66 
 
67 
    function process(&$matches)
68 
    {
69 
        $output = '';
70 
        $src = $matches[1];
71 
        $delmark = $this->getConf('delmark'); // ---
72 
        $insmark = $this->getConf('insmark'); // +++
73 
 
74 
        // '---' must be before '+++' (if they both appear)
75 
        $del = strpos($src, $delmark);
76 
        $ins = strpos($src, $insmark);
77 
 
78 
        // if neither is found, return right away
79 
        if ($del === false && $ins === false) {
80 
            return $matches[0];
81 
        }
82 
 
83 
        // handle text to be deleted
84 
        if ($del !== false) {
85 
 
86 
            // move forward to the end of the deletion mark
87 
            $del += strlen($delmark);
88 
 
89 
            if ($ins === false) {
90 
                // there is no insertion text following
91 
                $text = substr($src, $del);
92 
            } else {
93 
                // there is insertion text following,
94 
                // mitigate the length
95 
                $text = substr($src, $del, $ins - $del);
96 
            }
97 
 
98 
            $output .= $this->wiki->addToken(
99 
                $this->rule, array('type' => 'del_start')
100 
            );
101 
 
102 
            $output .= $text;
103 
 
104 
            $output .= $this->wiki->addToken(
105 
                $this->rule, array('type' => 'del_end')
106 
            );
107 
        }
108 
 
109 
        // handle text to be inserted
110 
        if ($ins !== false) {
111 
 
112 
            // move forward to the end of the insert mark
113 
            $ins += strlen($insmark);
114 
            $text = substr($src, $ins);
115 
 
116 
            $output .= $this->wiki->addToken(
117 
                $this->rule, array('type' => 'ins_start')
118 
            );
119 
 
120 
            $output .= $text;
121 
 
122 
            $output .= $this->wiki->addToken(
123 
                $this->rule, array('type' => 'ins_end')
124 
            );
125 
        }
126 
 
127 
        return $output;
128 
    }
129 
}
130 
?>