pwabuilder-lib/lib/manifestTools/manifestCreator/utils.js

PWA Builder Core Library

'use strict';

var stripCombiningMarks = require('strip-combining-marks');
var punycode = require('punycode');

function toArrayBuffer(buffer) {

  var ab = new ArrayBuffer(buffer.length);
  var view = new Uint8Array(ab);
  for (var i = 0; i < buffer.length; ++i) {
    view[i] = buffer[i];
  }
  return ab;
}

function toBuffer(ab) {

  var buffer = new Buffer(ab.byteLength);
  var view = new Uint8Array(ab);
  for (var i = 0; i < buffer.length; ++i) {
    buffer[i] = view[i];
  }
  return buffer;
}


function realLength(str) { 
  return punycode.ucs2.decode(stripCombiningMarks(str)).length;
}

module.exports = {
  realLength: realLength,
  toBuffer: toBuffer,
  toArrayBuffer: toArrayBuffer
};