new_lookaheads = itm.calc_lookahead(itm.lookahead());
new_lookaheads = itm.calc_lookahead(itm.lookahead());
new_lookaheads = itm.calc_lookahead(itm.lookahead());
new_lookaheads = itm.calc_lookahead(itm.lookahead());
new_lookaheads = itm.calc_lookahead(itm.lookahead());
new_lookaheads = itm.calc_lookahead(itm.lookahead());
new_lookaheads = itm.calc_lookahead(itm.lookahead());