Making LogFilter::from_usize() public

[elichai]

Hi,
I'm using https://github.com/TeXitoi/structopt for CLI arguments and it has a nice feature called from_occurrences that it counts the number of vs when I pass -v and gives me a usize/u8.
I'm using that to select the LevelFilter for my logger.

Right now I have my own match, but it would be nicer if I could use the already existing LogFilter::from_usize() function (here: https://github.com/rust-lang-nursery/log/blob/master/src/lib.rs#L487 ) to convert it.
That way I won't need to worry about future changes to the LogFilter.

What do you think?
Thanks.

[KodrAus]

Hi @elichai 👋

I'm not sure that we'll want to commit to those exact values as public in log, they're an internal mechanism that lets us compare a Level to a LevelFilter.

[elichai]

Hmm Ok, that's too bad.
I do think that other people had to write a function like this too, but thanks anyway :)

[KodrAus]

No problem, thanks again for the suggestion! This might be something we could revisit in the future.