183 lines
4.9 KiB
PHP
183 lines
4.9 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: revise.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 source text marked for
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* revision.
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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_revise extends Text_Wiki_Rule {
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/**
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*
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* The regular expression used to parse the source text and find
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* matches conforming to this rule. Used by the parse() method.
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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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* @see parse()
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*
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*/
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var $regex = "/\@\@({*?.*}*?)\@\@/U";
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/**
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*
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* The characters to use as marking text to be stricken.
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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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* @see parse()
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*
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*/
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var $delmark = '---';
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/**
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*
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* The characters to use as marking text to be added.
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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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* @see parse()
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*
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*/
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var $insmark = '+++';
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/**
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*
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* Generates a replacement for the matched text. Token options are:
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*
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* 'type' => ['start'|'end'] The starting or ending point of the
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* inserted text. The text itself is left in the source.
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*
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* @access public
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*
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* @param array &$matches The array of matches from parse().
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*
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* @return string A pair of delimited tokens to be used as a
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* placeholder in the source text surrounding the teletype text.
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*
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*/
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function process(&$matches)
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{
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$output = '';
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$src = $matches[1];
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$delmark = $this->delmark;
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$insmark = $this->insmark;
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// '---' must be before '+++' (if they both appear)
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$del = strpos($src, $delmark);
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$ins = strpos($src, $insmark);
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// if neither is found, return right away
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if ($del === false && $ins === false) {
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return $matches[0];
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}
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// handle text to be deleted
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if ($del !== false) {
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// move forward to the end of the deletion mark
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$del += strlen($delmark);
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if ($ins === false) {
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// there is no insertion text following
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$text = substr($src, $del);
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} else {
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// there is insertion text following,
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// mitigate the length
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$text = substr($src, $del, $ins - $del);
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}
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$output .= $this->addToken(array('type' => 'del_start'));
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$output .= $text;
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$output .= $this->addToken(array('type' => 'del_end'));
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}
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// handle text to be inserted
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if ($ins !== false) {
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// move forward to the end of the insert mark
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$ins += strlen($insmark);
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$text = substr($src, $ins);
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$output .= $this->addToken(array('type' => 'ins_start'));
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$output .= $text;
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$output .= $this->addToken(array('type' => 'ins_end'));
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}
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return $output;
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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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if ($options['type'] == 'del_start') {
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return '<del>';
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}
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if ($options['type'] == 'del_end') {
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return '</del>';
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}
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if ($options['type'] == 'ins_start') {
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return '<ins>';
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}
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if ($options['type'] == 'ins_end') {
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return '</ins>';
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}
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}
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}
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?>
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