Method AppendValue

tools/enum_parser/parse_enum/parse_enum.cpp:83–91

    template<class T>
    void AppendValue(const T& text) {
        // by pg@ advice, do not parse enum value
        // leave it to C++ compiler to parse/interpret

        if (!CurrentItem.Value)
            CurrentItem.Value = TString();

        *CurrentItem.Value += text;
    }

    void DoEnd() override {
        AddEnumItem();