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| '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;
| };
|
|
