Function try_print_until

utils/dasFormatter/formatter.cpp:16–26

    static State state;

    optional<Pos> try_print_until(Pos info) {
        if (!state.enabled) {
            return nullopt;
        }
        if (info.line < state.last.line) {
            return state.last;
        }
        get_writer() << get_substring(state.last, info);
        state.last = info;
        return nullopt;
    }


    void init(TextWriter *ss, string content, FormatOptions options, ProgramPtr program) {