Tuple of Args

Just a couple of arguments, you know, in a std::tuple.

Single header parsing library, more of an exploration of the language than a real world use library, but with the hopes of someone getting inspired and maybe contributing to the cause :)

Types of options

Option

Each option has a type and a position as template arguments Option<type,pos> and the following chainable member functions

Option& required()
Option& default_value(const result_t& val)
Option& help_text(const std::string& help_txt)
Option& desc(const std::string& desc)
Option& choice(std::initializer_list<T> list)

List

Similar to Option but captures multiple items at once. List also has a type and positional type arguments, but features two more: a min and maximum number of arguments; List<float,-1,1,5>("--floats") will capture at any position at least 1, but a maximum of 5 floats

Command

Simple wrapper for creating command line subcommands like git blame, Its constructed using a name followed by option and list classes that are local to the subcommand.

Command("blame",Option<int>("--uid"),Option<float>("--test"))

Usage example

It the same one shown in the example folder, but most of the code is self explanatory

sing namespace tuple_of_args;

    auto commit = Command("commit", 
        Option<int>("--test"), 
        Option<float>("--ding"));
    auto push = Command("push", 
        Option<float>("--test"), 
        Option<float>("--dong"));
    auto paths = List<std::string, -1, 2>("--paths");
    auto num = Option<int,1>("num")
        .desc("This is great")
        .default_value(3)
        .choice({ 3,12,24 });
    /*auto num = Option<int>("--num")
        .desc("This is great")
        .default_value(3);*/
    auto fl = Option<float>("--fl")
        .desc("This is great")
        .default_value(5.14f);
    auto flz = Option<float>("--flz")
        .desc("This is not great")
        .default_value(5.14f);


    
    bool parsed = parse(argc, argv, commit, push, paths, num, fl, flz);
    
    if(!parsed) 
        help(commit, push, paths, num, fl, flz);

    if (num.value == 12) {
        std::cout << "Found the value";
    }