hughperkins / ArgParseCpp

C++ version of Python's ArgParse

ArgParseCpp

C++ version of Python's ArgParse

Loosely modelled off Python's argparse module.

I couldnt find a drop-in portable commandline parser for c++. Options that came up on stackoverflow:

• use boost
• use getopt

Boost is hard to compile on Windows, so I'd prefer to avoid linking with thta. Especially for something as simple as parsing a commandline.

Getopt seems to have some combination of not being portable, being GPL-ish, and not accepting long arguments.

By comparison, ArgParseCpp:

• Apache license. Simply drop the files into your own repo. dont modify the copyright headers on them. Ideally star my repo :-)
• Doesnt need any dependencies. Well, it's sort of c++11. Thats it
• Is totally portable

Example usage:

    string requiredstring = "";
    bool somebool = false;
    string somestring = "";
    int someint = 0;
    float somefloat = 0.0f;

    cocl::ArgumentParser parser;
    parser.add_string_argument("--requiredstring", &requiredstring)->required();
    parser.add_bool_argument("--somebool", &somebool);
    parser.add_string_argument("--somestring", &somestring)->help("this should be a string");
    parser.add_int_argument("--someint", &someint);
    parser.add_float_argument("--somefloat", &somefloat);

    if(!parser.parse_args(argc, argv)) {
        return -1;
    }

    cout << "requiredstring " << requiredstring << endl;
    cout << "somebool " << somebool << endl;
    cout << "somestring " << somestring << endl;
    cout << "someint " << someint << endl;
    cout << "somefloat " << somefloat << endl;

Build

I reckon you can just drop the files directly into your own project. So, no need to build

Test

Run:

mkdir -p build
cd build
cmake ..
make
./test_argparsecpp