index.js
function exec(topic) {
	var regex = this.regex;
	var getParams = this.getParams;
	var match = regex.exec(topic);
	if (match) return getParams(match);
}
function exec(topic) {
	var regex = this.regex;
	var getParams = this.getParams;
	var match = regex.exec(topic);
	if (match) return getParams(match);
}
function exec ( topic ) { var regex = this . regex ; var getParams = this . getParams ; var match = regex . exec ( topic ) ; if ( match ) return getParams ( match ) ; }
Matches regex against topic, returns params if successful
@param topic Topic to match
Matches regex against topic returns params if successful