bug#37458: 27.0.50; number-at-point misses hex

[Andreas Röhler]

On 20.09.19 19:41, Lars Ingebrigtsen wrote:
> Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
>
> > number-at-point from thingatpt.el doesn't recognize hex-numbers.
> >
> > Currently defined like that:
> >
> > (defun number-at-point ()
> > \240 "Return the number at point, or nil if none is found."
> > \240 (when (thing-at-point-looking-at "-?[0-9]+\\.?[0-9]*" 500)
> > \240\240\240 (string-to-number
> > \240\240\240\240 (buffer-substring (match-beginning 0) (match-end 0)))))
> (You have something odd in your emails -- it seems like leading spaces
> are transformed into char 240.)

Sent from thunderbird. Not visible here. Also don't get the error when 
copying back from previous mail.


> I've now changed this to recognise some hex numbers if they're preceded
> by #x or 0x.  Just looking for "bare" hex numbers may return too many
> false positives.

Thanks.


> > Maybe make the regexp customizable?
> That wouldn't help much since the string has to be transformed to a
> number in the right base.