option *options::getopt_short(pstring arg)
{
for (auto & optbase : m_opts)
{
auto opt = dynamic_cast<option *>(optbase);
if (opt && opt->short_opt() == arg)
return opt;
}
return nullptr;
}
void Command::dump_usage(std::ostream &out, bool show_hidden) const
{
std::stringstream ss;
out << std::endl;
ss << get_name() << " - ";
dump_short_description(ss, show_hidden);
indented_dump(ss.str(), out);
out << std::endl << std::endl;
ss.str("");
dump_section(out, "Synopsis", show_hidden);
dump_synopsis(ss, show_hidden);
indented_dump(ss.str(), out);
out << std::endl;
ss.str("");
dump_section(out, "Description", show_hidden);
dump_full_description(ss, show_hidden);
indented_dump(ss.str(), out);
out << std::endl;
ss.str("");
dump_output_section(ss, show_hidden);
indented_dump(ss.str(), out);
out << std::endl;
dump_section(out, "Options", show_hidden);
std::vector<std::string> str_opts;
size_t max_width(0);
for (CommandOptions::const_iterator it = _options.begin();
it != _options.end(); ++it)
{
if (show_hidden == false && it->second->is_hidden())
continue;
std::stringstream ss;
std::string short_opt("-");
short_opt.append(1, it->second->get_short_opt());
std::string long_opt("--");
long_opt.append(it->second->get_long_opt());
ss << " ";
ss << Boldify(short_opt) << ", " << Boldify(long_opt);
if (it->second->is_arg_expected())
ss << " " << it->second->get_arg_name();
str_opts.push_back(ss.str());
size_t real_size = Get_real_string_size(ss.str());
if (real_size > max_width)
max_width = real_size;
}
size_t i(0);
for (CommandOptions::const_iterator it = _options.begin();
it != _options.end(); ++it)
{
if (show_hidden == false && it->second->is_hidden())
continue;
indented_dump(str_opts.at(i), out, 0, max_width + 2, true, true);
std::stringstream ss;
ss << it->second->get_description();
if (it->second->is_arg_expected() &&
it->second->is_mandatory() == false &&
it->second->get_default_value().empty() == false)
ss << std::endl << "Default is '" <<
it->second->get_default_value() << "'.";
indented_dump(ss.str(), out, max_width + 2,
Get_tty_cols(), false, false);
out << std::endl;
++i;
}
out << std::endl;
dump_section(out, "Examples", show_hidden);
ss.str("");
dump_examples(ss, show_hidden);
indented_dump(ss.str(), out);
out << std::endl;
if (_see_also.empty() == false)
{
dump_section(out, "See also", show_hidden);
ss.str("");
dump_see_also(ss, show_hidden);
indented_dump(ss.str(), out);
out << std::endl;
out << std::endl;
}
dump_section(out, "Author", show_hidden);
ss.str("");
ss << EXA_COPYRIGHT << std::endl;
indented_dump(ss.str(), out);
out << std::endl;
}