Write with Unicode syntax when `UnicodeSyntax` is seen to be switched on?

[kindaro]

I wanted to add an option to write Unicode syntax to fourmolu and a maintainer there suggested I check with the maintainers of ormolu if this can be merged here instead. So here I am. Would you merge that pull request?

[brandonchinn178]

Note: it wouldn't require an option if merged into Ormolu. It would be automatically applied, similar to how ImportQualifiedPost is automatically handled

[mrkkrp]

Seems to be not a very good idea if we keep in mind that the goal of a formatter is consistent appearance of the code. Some modules might end up using UnicodeSyntax and some not.

[brandonchinn178]

Couldnt you say the same thing about ImportQualifiedPost today? If someone turns it on for some modules and not others, it'll format qualified imports differently.

[mrkkrp]

I could, I wish that feature did not exist. Frankly, it doesn't solve any real practical issue and just complicates everything for a questionable cosmetic benefit.

I think the difference is that normalizing imports is a bit more troublesome (need to edit the AST and remove a pragma), so a compromise was introduced there.