Re: Rename `digit-char-p' to `char-digit-p'.

Stephen J. Turnbull wrote:

> Michael Sperber writes:
>  > 
>  > The name `digit-char-p' was moved to the core here:
>  > 
>  > 2015-02-25  Aidan Kehoe  <[email protected]>
>  > 
>  > 	* cl-extra.el (digit-char-p): Moved to data.c.
>  > 	* cl-extra.el (digit-char): Moved to data.c.
>  > 
>  > 
>  > Unfortunately, this breaks Gnus which defines the same name.  So:
> 
> Does it define it differently?  Since you say "break" I suppose it
> must.

They look pretty compatible to me.  The one difference that I see is
that the core version takes an optional radix argument, and the Gnus
version does not.

> Either way, why is Gnus defining functions in the global namespace?

FWIW, digit-char-p is part of parse-time.el.  I don't know offhand why
it's packaged with Gnus.  In GNU Emacs 24.5, parse-time.el is in the
calendar source tree.

> I don't really care about the name, but I think it's really obnoxious
> to have *both* `digit-char-p' and `char-digit-p' defined.  Especially
> if the semantics are different.

It seems like we could just wrap the Gnus version in

  (unless (fboundp 'digit-char-p) ...)

mike