Edit: ucs2length.js
'use strict'; // https://mathiasbynens.be/notes/javascript-encoding // https://github.com/bestiejs/punycode.js - punycode.ucs2.decode module.exports = function ucs2length(str) { var length = 0 , len = str.length , pos = 0 , value; while (pos < len) { length++; value = str.charCodeAt(pos++); if (value >= 0xD800 && value <= 0xDBFF && pos < len) { // high surrogate, and there is a next character value = str.charCodeAt(pos); if ((value & 0xFC00) == 0xDC00) pos++; // low surrogate } } return length; };
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