supporting comma separated list

[rafiw]

it would be nice to support comma separated list
e.g.

std::vector<int> opts;
app.add_option("-o,--o", opts,
                   "number of options list of comma separated list", true);

[henryiii]

Where do the comma-separated options go in this example? when you pass it on the command line, like ./program -o 1,2?

[rafiw]

yes exactly like this
this what i did at the end

std::vector<int> a;
app.add_option("-a", [&a](std::vector<std::string> val) {
        std::string item;
        for (const auto &v : val) {
            std::stringstream ss(v);
            while (std::getline(ss, item, ',')) {
                if (!item.empty())
                    a.push_back(std::stoi(item));
            }
        }
        return true;
    },
    "DESC");

[rafiw]

BTW great parser

[rafiw]

#209