stringencoding/src/CodePointOutputStream.js

Encode to/from Typed Array buffers

  /**
   * @constructor
   */
  function CodePointOutputStream() {
    /** @type {string} */
    var string = '';

    /** @return {string} The accumulated string. */
    this.string = function() {
      return string;
    };

    /** @param {number} c The code point to encode into the stream. */
    this.emit = function(c) {
      if (c <= 0xFFFF) {
        string += String.fromCharCode(c);
      } else {
        c -= 0x10000;
        string += String.fromCharCode(0xD800 + ((c >> 10) & 0x3ff));
        string += String.fromCharCode(0xDC00 + (c & 0x3ff));
      }
    };
  }

  module.exports = CodePointOutputStream;