'use strict';

// mathiasbynens.be/notes/javascript-encoding // 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;

};