includes/wikiengine/Parse/Mediawiki/Newline.php
author Dan
Sun, 28 Oct 2007 17:46:54 -0400
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permissions -rw-r--r--
Completely localized admin tree menu and page toolbar
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<?php
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/**
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* 
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* Parses for implied line breaks indicated by newlines.
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* 
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* @category Text
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* 
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* @package Text_Wiki
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* 
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* @author Paul M. Jones <pmjones@php.net>
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* 
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* @license LGPL
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* 
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* @version $Id: Newline.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $
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* 
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*/
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/**
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* 
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* Parses for implied line breaks indicated by newlines.
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* 
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* This class implements a Text_Wiki_Parse to mark implied line breaks in the
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* source text, usually a single carriage return in the middle of a paragraph
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* or block-quoted text.
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*
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* @category Text
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* 
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* @package Text_Wiki
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* 
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* @author Paul M. Jones <pmjones@php.net>
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* 
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*/
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class Text_Wiki_Parse_Newline extends Text_Wiki_Parse {
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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 $regex = '/([^\n])\n([^\n])/m';
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    /**
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    * 
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    * Generates a replacement token for the matched text.
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    * 
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    * @access public
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    *
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    * @param array &$matches The array of matches from parse().
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    *
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    * @return string A delimited token 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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        return $matches[1] .
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            $this->wiki->addToken($this->rule) .
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            $matches[2];
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    }
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    /**
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    *
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    * Abstrct method to parse source text for matches.
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    *
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    * Applies the rule's regular expression to the source text, passes
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    * every match to the process() method, and replaces the matched text
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    * with the results of the processing.
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    *
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    * @access public
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    *
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    * @see Text_Wiki_Parse::process()
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    *
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    */
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    function parse()
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    {
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        $source =& $this->wiki->source;
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        // This regex attempts to find HTML tags that can be safely compacted together without formatting loss
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        // The idea is to make it easier for the HTML parser to find litewiki elements
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        //$source = preg_replace('/<\/([a-z0-9:-]+?)>([\s]*[\n]+[\s]+|[\s]+[\n]+[\s]*|[\n]+)<([a-z0-9:-]+)(.*?)>/i', '</\\1><\\3\\4>', $source);
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        $source = wikiformat_process_block($source);
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        $rand_key = md5( str_rot13(strval(dechex(time()))) . microtime() . strval(mt_rand()) );
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        preg_match_all('/<(litewiki|pre)([^>]*?)>(.*?)<\/\\1>/is', $this->wiki->source, $matches);
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        $poslist = array();
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        foreach ( $matches[0] as $i => $match )
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        {
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            $source = str_replace($match, "{LITEWIKI:$i:$rand_key}", $source);
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        }
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        $this->wiki->source = preg_replace_callback(
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            $this->regex,
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            array(&$this, 'process'),
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            $this->wiki->source
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        );
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        foreach ( $matches[3] as $i => $match )
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        {
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            $source = str_replace("{LITEWIKI:$i:$rand_key}", $match, $source);
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        }
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        // die('<pre>'.htmlspecialchars($source).'</pre>');
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        unset($matches, $source, $rand_key);
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    }
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}
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?>