public Node parse() throws ScanException {
    return E();
  }
@Test
  public void testOptions1() throws Exception {
    Parser<Object> p = new Parser("%45x{a, b}");
    Node t = p.parse();
    SimpleKeywordNode witness = new SimpleKeywordNode("x");
    witness.setFormatInfo(new FormatInfo(45, Integer.MAX_VALUE));
    List<String> ol = new ArrayList<String>();
    ol.add("a");
    ol.add("b");
    witness.setOptions(ol);
    assertEquals(witness, t);
  }