sbool tokenRangeLongerThanNChars(LS tok, int iStart, int iEnd, int maxChars) {
  int nChars = 0, n = l(tok);
  iStart = Math.max(0, iStart);
  iEnd = Math.min(n, iEnd);
  for (int i = iStart; i < iEnd; i++) {
    nChars += l(tok.get(i));
    if (nChars > maxChars)
      true;
  }
  false;
}