includes/wikiengine/Parse/Mediawiki/Revise.php
author Dan
Sat, 25 Aug 2007 12:11:31 -0400
changeset 98 6457a9b983c6
parent 1 fe660c52c48f
permissions -rw-r--r--
Fixed non-object reference in databaseless template, added locking for Javascript paginator, made comments on AES key size more clear in constants, and disallowed "anonymous" and IP addresses for admin username in install.php; Loch Ness release candidate
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<?php
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/**
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* 
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* Parses for text marked as revised (insert/delete).
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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: Revise.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 text marked as revised (insert/delete).
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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_Revise 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 = "/\@\@({*?.*}*?)\@\@/U";
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    /**
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    * 
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    * Config options.
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    * 
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    * @access public
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    * 
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    * @var array
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    *
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    */
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    var $conf = array(
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        'delmark' => '---',
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        'insmark' => '+++'
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    );
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    /**
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    * 
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    * Generates a replacement for the matched text.  Token options are:
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    * 
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    * 'type' => ['start'|'end'] The starting or ending point of the
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    * inserted text.  The text itself is left in the source.
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    * 
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    * @access public
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    *
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    * @param array &$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->getConf('delmark'); // ---
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        $insmark = $this->getConf('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->wiki->addToken(
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                $this->rule, array('type' => 'del_start')
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            );
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            $output .= $text;
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            $output .= $this->wiki->addToken(
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                $this->rule, array('type' => 'del_end')
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            );
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        }
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        // handle text to be inserted
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        if ($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->wiki->addToken(
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                $this->rule, array('type' => 'ins_start')
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            );
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            $output .= $text;
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            $output .= $this->wiki->addToken(
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                $this->rule, array('type' => 'ins_end')
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            );
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        }
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        return $output;
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    }
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}
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?>