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<?php
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/**
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*
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* Parses for bold 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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* @license LGPL
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*
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* @version $Id: Underline.php,v 1.1 2005/07/10 20:40:20 justinpatrin Exp $
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*
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*/
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/**
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*
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* Parses for bold text.
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*
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* This class implements a Text_Wiki_Rule to find source text marked for
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* strong emphasis (bold) as defined by text surrounded by three
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* single-quotes. On parsing, the text itself is left in place, but the
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* starting and ending instances of three single-quotes are replaced with
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* tokens.
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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_Underline 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 $regex = "/__(()|[^_].*)__/U";
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/**
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*
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* Generates a replacement for the matched text. Token options are:
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*
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* 'type' => ['start'|'end'] The starting or ending point of the
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* emphasized text. The text itself is left in the source.
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*
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* @access public
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*
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* @param array &$matches The array of matches from parse().
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*
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* @return A pair of delimited tokens to be used as a placeholder in
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* the source text surrounding the text to be emphasized.
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*
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*/
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function process(&$matches)
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{
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$start = $this->wiki->addToken($this->rule, array('type' => 'start'));
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$end = $this->wiki->addToken($this->rule, array('type' => 'end'));
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return $start . $matches[1] . $end;
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}
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}
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?>