Function codePointStringToNum

implementation.js:17–27

(c)

var $charCodeAt = callBound('String.prototype.charCodeAt');
var codePointStringToNum = function codePointStringToNumber(c) {
	var first = $charCodeAt(c, 0);
	if (first < 0xD800 || first > 0xDBFF || c.length === 1) {
		return first;
	}
	var second = $charCodeAt(c, 1);
	if (second < 0xDC00 || second > 0xDFFF) {
		return first;
	}
	return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
};

module.exports = function escape(S) {
	if (typeof S !== 'string') {