[Feature Request] Inflection (aka plurals and sinulars)

[greyblake]

Hi, thank for the nice crate, it save me time and boilerplate today!

Motivaiton

This modifiers like $var:snake:upper are very helpful and prevents from some repetition. However, sometimes there are not sufficient, there some cases when a thing needs to be converted to it's plural (or maybe singular form).

For example: it would be cool to be able to derive from User model a table where it's stored (users).

Examples

• when $var = user
  • $var:plural => users
  • $var:singular => user
• when $var = users
  • $var:plural => users
  • $var:singular => user

Challenges

Due to the English grammar, just adding s is not always sufficient. For example:

• category -> categories
• box -> boxes
• mouse -> mice

So the problem is not very trivial. A good news, that Rails has it for almost 2 decades, and we can peek some ideas there. In Rails, the module responsible for this is called Inflector: https://api.rubyonrails.org/classes/ActiveSupport/Inflector.html

It seems to be that this problem also already solved in Rust. There are plenty of crates doing this: https://crates.io/search?q=singular%20plural inflection-rs seems to be the most decent among them.

I'd like to hear from you:

• Would you consider adding this feature to the paste crate?
• If yes, would you like to implement it on your own, or you're fine to accept a PR?
• And would you consider for possible using a third crate for inflection? (it can be behind feature flag)

Thank you in advance!

[dtolnay]

I think I would prefer not to build this into this crate. But it would be a neat feature for someone else to maintain in a separate crate.