Print XML description for a command

[phzs]

I am trying to print a XML description of my program with all options etc. when the user provides a special "help" option, which could be for example --help xml, or --xmldesc etc. This option should be handled similar to the --help option, so that no other options are processed when it is given by the user. And this is the first thing that I am struggling with. Any hint how to achieve it?

The second thing is, how would I produce the XML description? I tried the following simple approach but I need to handle flags differently for example (I did not find a way to distinguish between flags and other options):

std::string xml_description(CLI::App* command) {
    std::stringstream result;
    for (const auto &option : command->get_options()) {
      result << R"(<option name=")" << option->get_name() << R"(" description=")" << option->get_description()
             << R"(" type=")";
      if (/*option is a flag*/) {
        result << "flag";
      } else {
        result << "option";
      }
      result << R"("/>)";
    }
    return result.str();
}

Any ideas?

[phlptp]

Unless you are doing some complicated stuff the way to discriminate them is to use the get_expected_min() function on the option. That will be 0 for flags. It will be 1 or greater for options with required arguments.

[phzs]

This works very well thank you!