I can't help (yet) if you need the full numeric value.  But if the decimal
digit value is enough for you, then the attached source file should work
(from Chibi).

On Sat, Dec 15, 2018 at 11:32 PM Freeman Gilmore <freeman.gilmore@gmail.com>
wrote:

> I am looking for a procedure that will read the numeric value, field 8, of
> an Unicode numeric character.   Has anyone written this procedure or know
> where I can find it?
>
> Thank you,
>
> ƒg
>