> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Date: Sun, 11 Mar 2018 12:05:11 -0400
> Cc: "Charles A. Roelli" <charles@aurox.ch>
>
> > -DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5, 0,
> > +DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5,
> > +       "(if (< (length mark-ring) 2)\
> > +       (error \"Other region must be marked before transposing two regions\")\
> > +     (let* ((num (if current-prefix-arg\
> > +                    (prefix-numeric-value current-prefix-arg)\
> > +                   0))\
> > +            (ring-length (length mark-ring))\
> > +            (eltnum (mod num ring-length))\
> > +            (eltnum2 (mod (1+ num) ring-length)))\
> > +       (list (point) (mark) (elt mark-ring eltnum) (elt mark-ring eltnum2))))",
>
> Am I the only one who dislikes seeing such Elisp code hidden within our
> C files?

I have no problems with that.