Package org.antlr.misc

Examples of org.antlr.misc.IntervalSet.complement()

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  public void testNotEqualSet() throws Exception {
    IntervalSet vocabulary = IntervalSet.of(1,1000);
    IntervalSet s = IntervalSet.of(1,1000);
    String expecting = "{}";
    String result = (s.complement(vocabulary)).toString();
    assertEquals(result, expecting);
  }

  public void testNotSetEdgeElement() throws Exception {
    IntervalSet vocabulary = IntervalSet.of(1,2);
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  public void testNotSetEdgeElement() throws Exception {
    IntervalSet vocabulary = IntervalSet.of(1,2);
    IntervalSet s = IntervalSet.of(1);
    String expecting = "2";
    String result = (s.complement(vocabulary)).toString();
    assertEquals(result, expecting);
  }

    public void testNotSetFragmentedVocabulary() throws Exception {
        IntervalSet vocabulary = IntervalSet.of(1,255);
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        IntervalSet s = IntervalSet.of(50,60);
        s.add(3);
        s.add(250,300);
        s.add(10000); // this is outside range of vocab and should be ignored
        String expecting = "{1..2, 4..49, 61..249, 1000..2000, 9999}";
        String result = (s.complement(vocabulary)).toString();
        assertEquals(result, expecting);
    }

    public void testSubtractOfCompletelyContainedRange() throws Exception {
        IntervalSet s = IntervalSet.of(10,20);
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  public void testComplement3() throws Exception {
    IntervalSet s = IntervalSet.of(1,96);
    s.add(99,65534);
    String expecting = "97..98";
    String result = (s.complement(1,Label.MAX_CHAR_VALUE)).toString();
    assertEquals(result, expecting);
  }

    public void testMergeOfRangesAndSingleValues() throws Exception {
        // {0..41, 42, 43..65534}
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