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<?php
/**
*
* Parses for centered text.
*
* This class implements a Text_Wiki_Parse to find source text marked to
* be a center element, as defined by text on a line by itself prefixed
* with an exclamation mark (!).
* The centered text itself is left in the source, but is prefixed and
* suffixed with delimited tokens marking its start and end.
*
* @category Text
*
* @package Text_Wiki
*
* @author Tomaiuolo Michele <tomamic@yahoo.it>
*
* @license LGPL
*
* @version $Id: Center.php 240476 2007-07-30 14:22:34Z mic $
*
*/
class Text_Wiki_Parse_Center 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 $regex = '/^! *(.*?)$/m';
/**
*
* Generates a replacement for the matched text. Token options are:
*
* 'type' => ['start'|'end'] The starting or ending point of the
* centered text. The text itself is left in the source.
*
* @access public
*
* @param array &$matches The array of matches from parse().
*
* @return string A pair of delimited tokens to be used as a
* placeholder in the source text surrounding the centered text.
*
*/
function process(&$matches)
{
$start = $this->wiki->addToken(
$this->rule,
array(
'type' => 'start'
)
);
$end = $this->wiki->addToken(
$this->rule,
array(
'type' => 'end'
)
);
return $start . trim($matches[1]) . $end . "\n\n";
}
}
?>
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