1<?php
2// vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4:
3/**
4 * Code rule end renderer for Xhtml
5 *
6 * PHP versions 4 and 5
7 *
8 * @category   Text
9 * @package    Text_Wiki
10 * @author     Paul M. Jones <pmjones@php.net>
11 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
12 * @version    CVS: $Id$
13 * @link       http://pear.php.net/package/Text_Wiki
14 */
15
16/**
17 * This class renders code blocks in XHTML.
18 *
19 * @category   Text
20 * @package    Text_Wiki
21 * @author     Paul M. Jones <pmjones@php.net>
22 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
23 * @version    Release: @package_version@
24 * @link       http://pear.php.net/package/Text_Wiki
25 */
26class Text_Wiki_Render_Xhtml_Code extends Text_Wiki_Render {
27
28    var $conf = array(
29        'css'      => null, // class for <pre>
30        'css_code' => null, // class for generic <code>
31        'css_php'  => null, // class for PHP <code>
32        'css_html' => null, // class for HTML <code>
33        'css_filename' => null // class for optional filename <div>
34    );
35
36    /**
37    *
38    * Renders a token into text matching the requested format.
39    *
40    * @access public
41    *
42    * @param array $options The "options" portion of the token (second
43    * element).
44    *
45    * @return string The text rendered from the token options.
46    *
47    */
48
49    function token($options)
50    {
51        $text = $options['text'];
52        $attr = $options['attr'];
53        $type = strtolower($attr['type']);
54
55        $css      = $this->formatConf(' class="%s"', 'css');
56        $css_code = $this->formatConf(' class="%s"', 'css_code');
57        $css_php  = $this->formatConf(' class="%s"', 'css_php');
58        $css_html = $this->formatConf(' class="%s"', 'css_html');
59        $css_filename = $this->formatConf(' class="%s"', 'css_filename');
60
61        if ($type == 'php') {
62            if (substr($options['text'], 0, 5) != '<?php') {
63                // PHP code example:
64                // add the PHP tags
65                $text = "<?php\n" . $options['text'] . "\n?>"; // <?php
66            }
67
68            // convert tabs to four spaces
69            $text = str_replace("\t", "    ", $text);
70
71            // colorize the code block (also converts HTML entities and adds
72            // <code>...</code> tags)
73            ob_start();
74            highlight_string($text);
75            $text = ob_get_contents();
76            ob_end_clean();
77
78            // replace <br /> tags with simple newlines.
79            // replace non-breaking space with simple spaces.
80            // translate HTML <font> and color to XHTML <span> and style.
81            // courtesy of research by A. Kalin :-).
82            $map = array(
83                '<br />'  => "\n",
84                '&nbsp;'  => ' ',
85                '<font'   => '<span',
86                '</font>' => '</span>',
87                'color="' => 'style="color:'
88            );
89            $text = strtr($text, $map);
90
91            // get rid of the last newline inside the code block
92            // (becuase higlight_string puts one there)
93            if (substr($text, -8) == "\n</code>") {
94                $text = substr($text, 0, -8) . "</code>";
95            }
96
97            // replace all <code> tags with classed tags
98            if ($css_php) {
99                $text = str_replace('<code>', "<code$css_php>", $text);
100            }
101
102            // done
103            $text = "<pre$css>$text</pre>";
104
105        } elseif ($type == 'html' || $type == 'xhtml') {
106
107            // HTML code example:
108            // add <html> opening and closing tags,
109            // convert tabs to four spaces,
110            // convert entities.
111            $text = str_replace("\t", "    ", $text);
112            $text = "<html>\n$text\n</html>";
113            $text = $this->textEncode($text);
114            $text = "<pre$css><code$css_html>$text</code></pre>";
115
116        } else {
117            // generic code example:
118            // convert tabs to four spaces,
119            // convert entities.
120            $text = str_replace("\t", "    ", $text);
121            $text = $this->textEncode($text);
122            $text = "<pre$css><code$css_code>$text</code></pre>";
123        }
124
125        if ($css_filename && isset($attr['filename'])) {
126            $text = "<div$css_filename>" .
127                $attr['filename'] . '</div>' . $text;
128        }
129
130        return "\n$text\n\n";
131    }
132}
133?>
134