mongo db RegExp

	var regex = new RegExp("^mongo(?:db)?://(?:|([^@/]*)@)([^@/]*)(?:|/([^?]*)(?:|\\?([^?]*)))$");
	var match = process.env.MONGOHQ_URL.match(regex);
	var auth = match[1].split(':', 2);
	auth[0] = decodeURIComponent(auth[0]);
	auth[1] = decodeURIComponent(auth[1]);
	db.authenticate(auth[0], auth[1], function(err, success) {
	if (err) {
	console.error(err);
	} else {
	// worked >:O
	}
	});
	//OR
	var regex = new RegExp("^mongo(?:db)?://(?:|([^@/]*)@)([^@/]*)(?:|/([^?]*)(?:|\\?([^?]*)))$");
	var con_url = "mongodb://heroku_app160846:2n2tlv5la7mi5sgpbhvj9j@ds027908.mongolab.com:27908/heroku_app161146";
	var match = con_url.match(regex);
	var auth = match[1].split(':', 2);
	auth[0] = decodeURIComponent(auth[0]);
	auth[1] = decodeURIComponent(auth[1]);
	console.log(auth)

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