[OT] C# can do all the interpolated strings now

[Kagamin]

On Thursday, 9 December 2021 at 14:30:33 UTC, Ola Fosheim Grøstad 
wrote:
> I am not suggesting the implementation of builtin string 
> interpolation, but custom literals with conversion functions. 
> It should probably not be called ```string_interpolation```, 
> just ```convert``` or ```@convert```.
>
> This is different from string mixins as it would be more 
> composable, overloadable, and with stronger typing and no 
> ```mixin```.

I looks like you propose string mixin with a different syntax. If 
behavior is customizable, you can't guarantee the custom handler 
will use a strong type system and provide all those features you 
want.