Markdown_Parser::doBlockQuotes PHP Method

    function doBlockQuotes($text)
    {
        $text = preg_replace_callback('/
			  (								# Wrap whole match in $1
				(?>
				  ^[ ]*>[ ]?			# ">" at the start of a line
					.+\\n					# rest of the first line
				  (.+\\n)*					# subsequent consecutive lines
				  \\n*						# blanks
				)+
			  )
			/xm', array(&$this, '_doBlockQuotes_callback'), $text);
        return $text;
    }