On Thu, Nov 24, 2022 at 01:31:00PM +0300, Jean Louis wrote:

[...]

> Do you have completed example using: 
> (or (seq "0" (any digit)) (seq "1" (any digit)) (seq "2" (any "0-3"))) ?

I'm not supposed to be doing this now, so the rest is left as an
exercise to the reader, alas.

Hint: look at the regexp your `rx' invocation produces and translate
backwards from it.

Cheers
-- 
t