Method add_complex

simcore/framework/src/cli/cli.hpp:5382–5421

  /// Add a complex number
  template <typename T, typename XC = double>
  Option *add_complex(std::string option_name, T &variable, std::string option_description = "", bool defaulted = false,
                      std::string label = "COMPLEX") {
    CLI::callback_t fun = [&variable](const results_t &res) {
      XC x, y;
      bool worked;
      if (res.size() >= 2 && !res[1].empty()) {
        auto str1 = res[1];
        if (str1.back() == 'i' || str1.back() == 'j') str1.pop_back();
        worked = detail::lexical_cast(res[0], x) && detail::lexical_cast(str1, y);
      } else {
        auto str1 = res.front();
        auto nloc = str1.find_last_of('-');
        if (nloc != std::string::npos && nloc > 0) {
          worked = detail::lexical_cast(str1.substr(0, nloc), x);
          str1 = str1.substr(nloc);
          if (str1.back() == 'i' || str1.back() == 'j') str1.pop_back();
          worked = worked && detail::lexical_cast(str1, y);
        } else {
          if (str1.back() == 'i' || str1.back() == 'j') {
            str1.pop_back();
            worked = detail::lexical_cast(str1, y);
            x = XC{0};
          } else {
            worked = detail::lexical_cast(str1, x);
            y = XC{0};
          }
        }
      }
      if (worked) variable = T{x, y};
      return worked;
    };

    auto default_function = [&variable]() { return CLI::detail::checked_to_string<T, T>(variable); };

    CLI::Option *opt =
        add_option(option_name, std::move(fun), std::move(option_description), defaulted, default_function);

    opt->type_name(label)->type_size(1, 2)->delimiter('+')->run_callback_for_default();
    return opt;
  }

  /// Set a configuration ini file option, or clear it if no name passed
  Option *set_config(std::string option_name = "", std::string default_filename = "",