public void add()

in jflex/src/main/java/jflex/core/unicode/IntCharSet.java [212:259]

• 36 lines of code
• 20 McCabe index (conditional complexity)

  public void add(int c) {
    int size = intervals.size();

    for (int i = 0; i < size; i++) {
      Interval elem = intervals.get(i);
      if (elem.end + 1 < c) continue;

      if (elem.contains(c)) return; // already there, nothing to do

      if (DEBUG) assert (elem.end + 1 >= c && (elem.start > c || elem.end < c));

      if (elem.start > c + 1) {
        intervals.add(i, Interval.ofCharacter(c));
        if (DEBUG) assert invariants();
        return;
      }

      if (DEBUG)
        assert (elem.end + 1 >= c && elem.start <= c + 1 && (elem.start > c || elem.end < c));

      if (c + 1 == elem.start) {
        elem.start = c;
        if (DEBUG) assert invariants();
        return;
      }

      if (DEBUG) assert (elem.end + 1 == c);
      elem.end = c;

      // merge with next interval if it contains c
      if (i + 1 >= size) {
        if (DEBUG) assert invariants();
        return;
      }
      Interval x = intervals.get(i + 1);
      if (x.start <= c + 1) {
        elem.end = x.end;
        intervals.remove(i + 1);
      }

      if (DEBUG) assert invariants();
      return;
    }

    // end reached but nothing found -> append at end
    intervals.add(Interval.ofCharacter(c));
    if (DEBUG) assert invariants();
  }