Function prepare_rule

utils/dasFormatter/formatter.cpp:133–139

    }

    bool prepare_rule(Pos pos) {
        if (state.enabled && state.last <= pos) {
            try_print_until(pos);
            return true;
        }
        return false;
    }

    void finish_rule(Pos pos) {
        assert(state.enabled && state.last <= pos);