Method docopt

docopt.cpp:661–687

}

DOCOPT_INLINE
docopt::Options
docopt::docopt(std::string const& doc,
	       std::vector<std::string> const& argv,
	       bool help,
	       std::string const& version,
	       bool options_first) noexcept
{
	try {
		return docopt_parse(doc, argv, help, !version.empty(), options_first);
	} catch (DocoptExitHelp const&) {
		std::cout << doc << std::endl;
		std::exit(0);
	} catch (DocoptExitVersion const&) {
		std::cout << version << std::endl;
		std::exit(0);
	} catch (DocoptLanguageError const& error) {
		std::cerr << "Docopt usage string could not be parsed" << std::endl;
		std::cerr << error.what() << std::endl;
		std::exit(-1);
	} catch (DocoptArgumentError const& error) {
		std::cerr << error.what();
		std::cout << std::endl;
		std::cout << doc << std::endl;
		std::exit(-1);
	} /* Any other exception is unexpected: let std::terminate grab it */
}