134 lines
4.1 KiB
PHP
134 lines
4.1 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
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// +----------------------------------------------------------------------+
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// | PHP version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Paul M. Jones <pmjones@ciaweb.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: phpcode.php,v 1.3 2004/12/02 10:54:32 nohn Exp $
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/**
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*
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* This class implements a Text_Wiki_Rule to find sections marked as code
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* examples. Blocks are marked as the string <code> on a line by itself,
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* followed by the inline code example, and terminated with the string
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* </code> on a line by itself. The code example is run through the
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* native PHP highlight_string() function to colorize it, then surrounded
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* with <pre>...</pre> tags when rendered as XHTML.
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*
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* @author Paul M. Jones <pmjones@ciaweb.net>
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*
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* @package Text_Wiki
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*
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*/
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class Text_Wiki_Rule_phpcode extends Text_Wiki_Rule {
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/**
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*
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* The regular expression used to find source text matching this
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* rule.
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*
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* @access public
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*
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* @var string
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*
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*/
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var $regex = '/^(\<php\>)\n(.+)\n(\<\/php\>)(\s|$)/Umsi';
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/**
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*
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* Generates a token entry for the matched text. Token options are:
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*
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* 'text' => The full matched text, not including the <code></code> tags.
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*
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* @access public
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*
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* @param array &$matches The array of matches from parse().
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*
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* @return A delimited token number to be used as a placeholder in
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* the source text.
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*
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*/
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function process(&$matches)
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{
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$options = array('text' => $matches[2]);
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return $this->addToken($options) . $matches[4];
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}
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/**
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*
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* Renders a token into text matching the requested format.
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*
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* @access public
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*
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* @param array $options The "options" portion of the token (second
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* element).
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*
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* @return string The text rendered from the token options.
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*
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*/
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function renderXhtml($options)
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{
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// add the PHP tags
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$text = "<?php\n" . $options['text'] . "\n?>"; // <?php
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// convert tabs to four spaces
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$text = str_replace("\t", " ", $text);
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// colorize the code block (also converts HTML entities and adds
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// <code>...</code> tags)
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ob_start();
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highlight_string($text);
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$text = ob_get_contents();
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ob_end_clean();
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// replace <br /> tags with simple newlines
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//$text = str_replace("<br />", "\n", $text);
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// replace non-breaking space with simple spaces
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//$text = str_replace(" ", " ", $text);
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// replace <br /> tags with simple newlines
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// replace non-breaking space with simple spaces
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// translate old HTML to new XHTML
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// courtesy of research by A. Kalin :-)
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$map = array(
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'<br />' => "\n",
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' ' => ' ',
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'<font' => '<span',
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'</font>' => '</span>',
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'color="' => 'style="color:'
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);
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$text = strtr($text, $map);
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// get rid of the last newline inside the code block
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// (becuase higlight_string puts one there)
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if (substr($text, -8) == "\n</code>") {
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$text = substr($text, 0, -8) . "</code>";
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}
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// done
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return "\n<pre>$text</pre>\n";
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}
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}
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?>
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