static bool jmatch2_debug(S pat, L<S> tok) {
  List<String> tokpat = javaTok(pat);
  jfind_preprocess(tokpat);
  ret jmatch2_debug(tokpat, tok);
}

// assumes you preprocessed tokpat
static bool jmatch2_debug(L<S> tokpat, L<S> tok) {
  print("jmatch2_debug:");
  pnl(transpose(ll(tokpat, tok)));
  if (l(tok) != l(tokpat)) false;
  ret findCodeTokens(tok, 1, false, toStringArray(codeTokensOnly(tokpat)), null) == 1; // TODO: optimize
}