static int tok_findTokenSkippingCurlyBrackets(LS tok, int i, S t) {
  while (i < l(tok)) {
    if (eqGet(tok, i, t)) ret i;
    if (eqGet(tok, i, "{"))
      i = findEndOfBracketPart(tok, i)+1;
    else
      i += 2;
  }
  ret -1;
}