Support multiple values option

[TheWaWaR]

Is there any plan to support option with multiple values? Just like currently multiple position argument does.

It may looks something like this:

const Options = struct {
    values: std.ArrayList([]const u8),
}

[n0s4]

Its a bit tricky because I do not want to necessitate passing an allocator, and an ArrayList does need an allocator. I would need to be able to check at comptime whether an ArrayList type is allowed based on whether an Allocator will be passed at runtime.

However, an array would definitely be possible and you can already collect any number of trailing arguments.

Also, do you mind sharing your use case?

[n0s4]

That said, allocating does unlock a lot of nice possibilities, perhaps a fully separate parseWithAllocator which implements such things would be a good idea.