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<?php
/**
*
* Parses for interwiki links.
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
* @license LGPL
*
* @version $Id: Interwiki.php 180591 2005-02-23 17:38:29Z pmjones $
*
*/
/**
*
* Parses for interwiki links.
*
* This class implements a Text_Wiki_Parse to find source text marked as
* an Interwiki link. See the regex for a detailed explanation of the
* text matching procedure; e.g., "InterWikiName:PageName".
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
*/
class Text_Wiki_Parse_Interwiki extends Text_Wiki_Parse {
// double-colons wont trip up now
var $regex = '([A-Za-z0-9_]+):((?!:)[A-Za-z0-9_\/=&~#.:;-]+)';
/**
*
* Parser. We override the standard parser so we can
* find both described interwiki links and standalone links.
*
* @access public
*
* @return void
*
*/
function parse()
{
// described interwiki links
$tmp_regex = '/\[' . $this->regex . ' (.+?)\]/';
$this->wiki->source = preg_replace_callback(
$tmp_regex,
array(&$this, 'processDescr'),
$this->wiki->source
);
// standalone interwiki links
$tmp_regex = '/' . $this->regex . '/';
$this->wiki->source = preg_replace_callback(
$tmp_regex,
array(&$this, 'process'),
$this->wiki->source
);
}
/**
*
* Generates a replacement for the matched standalone interwiki text.
* Token options are:
*
* 'site' => The key name for the Text_Wiki interwiki array map,
* usually the name of the interwiki site.
*
* 'page' => The page on the target interwiki to link to.
*
* 'text' => The text to display as the link.
*
* @access public
*
* @param array &$matches The array of matches from parse().
*
* @return A delimited token to be used as a placeholder in
* the source text, plus any text priot to the match.
*
*/
function process(&$matches)
{
$options = array(
'site' => $matches[1],
'page' => $matches[2],
'text' => $matches[0]
);
return $this->wiki->addToken($this->rule, $options);
}
/**
*
* Generates a replacement for described interwiki links. Token
* options are:
*
* 'site' => The key name for the Text_Wiki interwiki array map,
* usually the name of the interwiki site.
*
* 'page' => The page on the target interwiki to link to.
*
* 'text' => The text to display as the link.
*
* @access public
*
* @param array &$matches The array of matches from parse().
*
* @return A delimited token to be used as a placeholder in
* the source text, plus any text priot to the match.
*
*/
function processDescr(&$matches)
{
$options = array(
'site' => $matches[1],
'page' => $matches[2],
'text' => $matches[3]
);
return $this->wiki->addToken($this->rule, $options);
}
}
?>
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