kebab case doesn't treat numbers as separate word?

[Luro02]

I was redirected from this issue
Peternator7/strum#72

[jplatte]

It's unfortunate that there is no behaviour here that is obvious to everybody, but this has been the default behaviour for both heck and serde (as I mentioned on that other issue) for a long time, so I think it would be a very bad idea to change it for everybody.

I think it would be feasible to expose an API that supports this, but that would require some refactoring and also afterwards strum would have to add support for it. Are you interested in working on that?

[Luro02]

Are you interested in working on that?

Not sure if I will have the time for this in the near future.

[jplatte]

Alright, I've posted this to This Week in Rust's Call for Participation section. Maybe sbd. else wants to work on it 🙂

So my idea is that this could work as .convert_case(ConvertCaseOpt { case: Case::SHOUTY_SNEK, number_starts_word: true }). I think this would have to be done:

• Introduce enum Case with variants for the unique case conventions (Kebab, LowerCamel, ...) and associated constants for the aliases (Pascal, snek, SHOUTY_SNEK)
• Add a general ConvertCase trait that provides the convert_case method
• Update all the other traits to be implemented in terms of convert_case (with number_starts_word: false) or move all methods into it directly

[danburkert]

Adding on to the ‘please don’t change this’ pile - this would be a very invasive breaking change for prost users if enabled by default. As for configuration APIs, quoting from the README:

This library is a little bit opinionated (dropping punctuation, for example). If that doesn't fit your use case, I hope there is another crate that does. I would prefer not to receive PRs to make this behavior more configurable.

[jplatte]

So to be clear: I've taken over maintenance of this crate, that's why I wrote some instructions about how to do this and posted it to CfP. Further, changing the default is not an option being discussed here. This is only about having some customization options, for those who need it.

You have a point about that bit from the README, but I think the treatment of numbers is something that would deserve some customization options, and I think the ConvertCase trait (with just a case parameter) would be a worthwhile refactoring independently, after which this would be very easy to implement.