}
  }

  /** Implementation that matches characters that fall within multiple ranges. */
  private static class RangesMatcher extends CharMatcher {

    private final String description;
    private final char[] rangeStarts;
    private final char[] rangeEnds;

    RangesMatcher(String description, char[] rangeStarts, char[] rangeEnds) {
      this.description = description;
      this.rangeStarts = rangeStarts;