code: function escapeCarriageReturn(txt) {
    if (!txt) return "";
    if (!/\r/.test(txt)) return txt;
    txt = txt.replace(/\r+\n/gm, "\n"); // \r followed by \n --> newline
    while (/\r[^$]/.test(txt)) {
      var base = /^(.*)\r+/m.exec(txt)[1];
      var insert = /\r+(.*)$/m.exec(txt)[1];
      insert = insert + base.slice(insert.length, base.length);
      txt = txt.replace(/\r+.*$/m, "\r").replace(/^.*\r/m, insert);
    }
    return txt;
  }
docs: Escape carrigage returns like a terminal
  @param {string} txt - String to escape.
  @return {string}    - Escaped string.