Function format_option

Source/Utils/cxxopts.hpp:1899–1943

    constexpr size_t OPTION_DESC_GAP = 2;

    String
    format_option
    (
      const HelpOptionDetails& o
    )
    {
      const auto& s = o.s;
      const auto& l = o.l;

      String result = "  ";

      if (!s.empty())
      {
        result += "-" + toLocalString(s);
        if (!l.empty())
        {
          result += ",";
        }
      }
      else
      {
        result += "   ";
      }

      if (!l.empty())
      {
        result += " --" + toLocalString(l);
      }

      auto arg = !o.arg_help.empty() ? toLocalString(o.arg_help) : "arg";

      if (!o.is_boolean)
      {
        if (o.has_implicit)
        {
          result += " [=" + arg + "(=" + toLocalString(o.implicit_value) + ")]";
        }
        else
        {
          result += " " + arg;
        }
      }

      return result;
    }

    String
    format_description