static bool learnedFlexMatch_multi(S s, S... patterns) {
  ret learnedFlexMatch_multi(s, null, patterns);
}

static bool learnedFlexMatch_multi(S s, Matches m, S... patterns) {
  for (S pattern : patterns)
    if (learnedFlexMatch(pattern, s, m))
      true;
  false;
}