options/main.cpp

#include "options.hpp"
#include <iostream>

template<typename Iterator>
void print_list(std::ostream& out, Iterator start, Iterator end)
{
    if (start == end)
    {
        out << "<empty>";
        return;
    }

    for (; start != end; ++start)
    {
        out << '"' << *start << '"';

        if (std::next(start) != end)
        {
            out << ", ";
        }
    }
}

int main(int argc, char** argv)
{
    auto [opts, operands] = options::parse(argv + 1, argv + argc);

    std::cerr << "Operands: ";
    print_list(std::cerr, std::cbegin(operands), std::cend(operands));
    std::cerr << '\n';

    for (const auto& [name, args] : opts)
    {
        std::cerr << "“" << name << "”: ";
        print_list(std::cerr, std::cbegin(args), std::cend(args));
        std::cerr << '\n';
    }
}