Ciao and thanks for your input.
> * `regexp_replace` doesn't work like that, at all
> * your logic only works by accident for some languages (try to upcase
> a `ß` or a `ı`)
If you have any ideas how it could be done indirectly/different strategy - I'm all ears.
You can assume all English characters [a-z][A-Z].
E.
> Dakkar - <Mobilis in mobile>