Re: region-active-p

[Stephen J. Turnbull]

Andreas Röhler writes:

 > If there is no extension, just the mark set,
 > `zmacs-region-extent' is nil and `region-active-p'
 > returns nil therefor.

Right.  However, if zmacs-region-extent is non-nil, it is possible
that (region-beginning) equals (region-end), in which case there is
(usually) no point in operating on the region.  It is that check that
Richard is asking about AFAICS.