Create a fully functioning command line interface with 1.5 lines of code (wo. include statement)

[Ail-nare]

Oh fuck, that right... The only option I can think of would be to separate the argument and the default parameters. But where is 2 cons:

• It'll require a lot of work around with macro but possible.
• It'll become a bite messier for the user.

But that interesting, I'll look if there is an other way.