Re: How to read an integer from the minibuffer

[Jean Louis]

* Emanuel Berg via Users list for the GNU Emacs text editor 
<help-gnu-emacs@gnu.org> [2021-11-12 22:26]:
> Jean Louis wrote:
> 
> >> We see a problem BTW that `string-to-number' returns 0
> >> on error!
> >
> > That problem I have solved in rcd-utilities.el with:
> >
> > (defun string-is-number-p (s)
> >   "Return number only if string is pure number,
> > otherwise NIL."
> 
>   A number is said to be pure if
> 
>     1. It has even number of digits.
>     2. All the digits are either 4 or 5.
>     3. And the number is a palindrome.

Should I say "actual number"?


-- 
Jean

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