Commit | Line | Data |
---|---|---|
6855525e JL |
1 | <?php |
2 | ||
3 | /** | |
4 | * | |
5 | * Parses for text marked as revised (insert/delete). | |
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: Revise.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $ | |
16 | * | |
17 | */ | |
18 | ||
19 | /** | |
20 | * | |
21 | * Parses for text marked as revised (insert/delete). | |
22 | * | |
23 | * @category Text | |
24 | * | |
25 | * @package Text_Wiki | |
26 | * | |
27 | * @author Paul M. Jones <pmjones@php.net> | |
28 | * | |
29 | */ | |
30 | ||
31 | class Text_Wiki_Parse_Revise extends Text_Wiki_Parse { | |
32 | ||
33 | ||
34 | /** | |
35 | * | |
36 | * The regular expression used to parse the source text and find | |
37 | * matches conforming to this rule. Used by the parse() method. | |
38 | * | |
39 | * @access public | |
40 | * | |
41 | * @var string | |
42 | * | |
43 | * @see parse() | |
44 | * | |
45 | */ | |
46 | ||
47 | var $regex = "/\@\@({*?.*}*?)\@\@/U"; | |
48 | ||
49 | ||
50 | /** | |
51 | * | |
52 | * Config options. | |
53 | * | |
54 | * @access public | |
55 | * | |
56 | * @var array | |
57 | * | |
58 | */ | |
59 | ||
60 | var $conf = array( | |
61 | 'delmark' => '---', | |
62 | 'insmark' => '+++' | |
63 | ); | |
64 | ||
65 | ||
66 | /** | |
67 | * | |
68 | * Generates a replacement for the matched text. Token options are: | |
69 | * | |
70 | * 'type' => ['start'|'end'] The starting or ending point of the | |
71 | * inserted text. The text itself is left in the source. | |
72 | * | |
73 | * @access public | |
74 | * | |
75 | * @param array &$matches The array of matches from parse(). | |
76 | * | |
77 | * @return string A pair of delimited tokens to be used as a | |
78 | * placeholder in the source text surrounding the teletype text. | |
79 | * | |
80 | */ | |
81 | ||
82 | function process(&$matches) | |
83 | { | |
84 | $output = ''; | |
85 | $src = $matches[1]; | |
86 | $delmark = $this->getConf('delmark'); // --- | |
87 | $insmark = $this->getConf('insmark'); // +++ | |
88 | ||
89 | // '---' must be before '+++' (if they both appear) | |
90 | $del = strpos($src, $delmark); | |
91 | $ins = strpos($src, $insmark); | |
92 | ||
93 | // if neither is found, return right away | |
94 | if ($del === false && $ins === false) { | |
95 | return $matches[0]; | |
96 | } | |
97 | ||
98 | // handle text to be deleted | |
99 | if ($del !== false) { | |
100 | ||
101 | // move forward to the end of the deletion mark | |
102 | $del += strlen($delmark); | |
103 | ||
104 | if ($ins === false) { | |
105 | // there is no insertion text following | |
106 | $text = substr($src, $del); | |
107 | } else { | |
108 | // there is insertion text following, | |
109 | // mitigate the length | |
110 | $text = substr($src, $del, $ins - $del); | |
111 | } | |
112 | ||
113 | $output .= $this->wiki->addToken( | |
114 | $this->rule, array('type' => 'del_start') | |
115 | ); | |
116 | ||
117 | $output .= $text; | |
118 | ||
119 | $output .= $this->wiki->addToken( | |
120 | $this->rule, array('type' => 'del_end') | |
121 | ); | |
122 | } | |
123 | ||
124 | // handle text to be inserted | |
125 | if ($ins !== false) { | |
126 | ||
127 | // move forward to the end of the insert mark | |
128 | $ins += strlen($insmark); | |
129 | $text = substr($src, $ins); | |
130 | ||
131 | $output .= $this->wiki->addToken( | |
132 | $this->rule, array('type' => 'ins_start') | |
133 | ); | |
134 | ||
135 | $output .= $text; | |
136 | ||
137 | $output .= $this->wiki->addToken( | |
138 | $this->rule, array('type' => 'ins_end') | |
139 | ); | |
140 | } | |
141 | ||
142 | return $output; | |
143 | } | |
144 | } | |
145 | ?> |