structopt VS argparse

Hello everyone! I'm not a reddit user, but my previously open-sourced projects have been only seen by one of my coworkers and I can't even find them on google, so I'm trying to get some visibility) It's just a command line parser, but it uses the idea of declaring the structure which acts as the data scheme for the parser and result storage simultaneously, which I think is the best possible approach for the problem. I was excited when I discovered it with the structopt library, but I had too many gripes with its interface (required duplication of your structure content in the macro, everything besides positional arguments has to be wrapped in std::optional, inability to set parameters' description to the help message, etc), so I've built an alternative that doesn't tick me off. At least so far) I hope someone finds it interesting.

The most feature-rich C++ CLI library is CLI11. Other popular choices include Boost.ProgramOptions, argparse, cxxopts and others.

It was noted by u/k1lk1 that it wasn't entirely obvious what the benefits of this library are, so I'll compare arg_router to argparse, with a simple but common example.

You're looking for an argument parsing library. There are tons of these. My favorite is the excelent Rust crate called clap. For C++, the argparse library is a decent option.

p-ranav/argparse - A single-file header-only C++11 library for parsing command line arguments.

I tried to make the code modular as much as possible. However, in main.cpp I have used the argparse and termcolor along with the main function. As Sam, pointed out, it would be a good idea to move them to a separate file and import them in main.cpp.

argparse is another good one. Templated (delicious), tested, AND has conan and debian package deployment.

argparse ➜ repository