eleven-http-api/utils.js at master · Whizy/eleven-http-api · GitHub

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/*
 * utils.js contains functions from eleven-gsjs
 * https://github.com/ElevenGiants/eleven-gsjs
 */

//jscs:disable requireCamelCaseOrUpperCaseIdentifiers
var romanMap = {
	M:	1000,
	CM:	900,
	D:	500,
	CD:	400,
	C:	100,
	XC:	90,
	L:	50,
	XL:	40,
	X:	10,
	IX:	9,
	V:	5,
	IV:	4,
	I:	1
};


exports.to_roman_numerals = function to_roman_numerals(num) {

	var n = parseInt(num, 10);
	var res = '';

	for (var roman in romanMap) {
		var number = romanMap[roman];
		var matches = parseInt(n / number, 10);
		for (var i = 0; i < matches; i++) {
			res += roman;
		}
		n = n % number;
	}

	return res;
};
//jscs:enable requireCamelCaseOrUpperCaseIdentifiers