includes/wikiengine/Parse/Default/Deflist.php
author Dan
Sun, 25 Jan 2009 20:35:06 -0500
changeset 823 4596c40aaa94
parent 1 fe660c52c48f
permissions -rw-r--r--
AJAX core library: possible breaking change, readystatechange functions are now called with the XHR instance as the first parameter, to allow requests to run in parallel. This means much better stability but may break some applets (compatibility hack is included)
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<?php
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/**
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* 
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* Parses for definition lists.
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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: Deflist.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 definition lists.
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* 
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* This class implements a Text_Wiki_Parse to find source text marked as a
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* definition list.  In short, if a line starts with ':' then it is a
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* definition list item; another ':' on the same line indicates the end
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* of the definition term and the beginning of the definition narrative.
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* The list items must be on sequential lines (no blank lines between
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* them) -- a blank line indicates the beginning of a new list.
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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_Deflist 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 $regex = '/\n((: ).*\n)(?!(: |\n))/Us';
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    /**
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    * 
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    * Generates a replacement for the matched text.  Token options are:
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    * 
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    * 'type' =>
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    *     'list_start'    : the start of a definition list
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    *     'list_end'      : the end of a definition list
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    *     'term_start'    : the start of a definition term
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    *     'term_end'      : the end of a definition term
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    *     'narr_start'    : the start of definition narrative
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    *     'narr_end'      : the end of definition narrative
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    *     'unknown'       : unknown type of definition portion
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    *
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    * @access public
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    *
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    * @param array &$matches The array of matches from parse().
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    *
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    * @return A series of text and delimited tokens marking the different
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    * list text and list elements.
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    *
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    */
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    function process(&$matches)
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    {
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        // the replacement text we will return to parse()
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        $return = '';
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        // the list of post-processing matches
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        $list = array();
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        // start the deflist
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        $options = array('type' => 'list_start');
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        $return .= $this->wiki->addToken($this->rule, $options);
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        // $matches[1] is the text matched as a list set by parse();
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        // create an array called $list that contains a new set of
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        // matches for the various definition-list elements.
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        preg_match_all(
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            '/^(: )(.*)?( : )(.*)?$/Ums',
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            $matches[1],
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            $list,
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            PREG_SET_ORDER
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        );
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        // add each term and narrative
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        foreach ($list as $key => $val) {
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            $return .= (
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                $this->wiki->addToken($this->rule, array('type' => 'term_start')) .
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                trim($val[2]) .
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                $this->wiki->addToken($this->rule, array('type' => 'term_end')) .
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                $this->wiki->addToken($this->rule, array('type' => 'narr_start')) .
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                trim($val[4]) . 
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                $this->wiki->addToken($this->rule, array('type' => 'narr_end'))
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            );
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        }
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        // end the deflist
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        $options = array('type' => 'list_end');
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        $return .= $this->wiki->addToken($this->rule, $options);
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        // done!
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        return "\n" . $return . "\n\n";
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    }
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}
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?>