sbool flexMatchIC_iterate_debug;
sbool flexMatchIC_iterate_useTokenization;

svoid flexMatchIC_iterate(S pat, S input, VF1<Matches> onMatch) {
  if (flexMatchIC_iterate_debug)
    print("flexMatchIC_iterate " + pat + " / " + input);
  flexMatchIC_iterate(pat, javaTokNPunctuation_plusAsterisk(pat), javaTokNPunctuation_plusAsterisk(input), onMatch);
}

svoid flexMatchIC_iterate(S pat, LS tokPat, LS tokInput, VF1<Matches> onMatch) {
  L<Int> varIndices = flexMatchIC_getVarIndices(tokPat, tokInput);
  if (varIndices == null) ret;
  if (flexMatchIC_iterate_debug)
    printStructs(+varIndices, +tokPat, +tokInput);
  LL<S> spreadInputs = ai_spreadCertainIndices_2(tokPat, tokInput, varIndices);
  for (L<S> tok : spreadInputs) {
    if (flexMatchIC_iterate_debug)
      print("Testing spread " + sfu(codeTokens(tokPat)) + " with input: " + sfu(codeTokens(tok)));
    new Matches m;
    if (flexMatchIC_iterate_useTokenization
      ? match3(tokPat, tokInput, m)
      : match(pat, tok, m)) {
      if (flexMatchIC_iterate_debug)
        print("Got match: " + m);
      callF(onMatch, m);
    }
  }
}