includes/wikiengine/Parse/Mediawiki/Revise.php
author Dan
Thu, 17 Jan 2008 02:03:33 -0500
changeset 349 fdaf9070566c
parent 1 fe660c52c48f
permissions -rw-r--r--
More progress on the installer. At this point it can install and import the language, but does not rename config files. Still much work to be done, most notably localization and creation of MySQL users and databases.

<?php

/**
* 
* Parses for text marked as revised (insert/delete).
* 
* @category Text
* 
* @package Text_Wiki
* 
* @author Paul M. Jones <pmjones@php.net>
* 
* @license LGPL
* 
* @version $Id: Revise.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $
* 
*/

/**
* 
* Parses for text marked as revised (insert/delete).
*
* @category Text
* 
* @package Text_Wiki
* 
* @author Paul M. Jones <pmjones@php.net>
* 
*/

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