Re: Problem binding mouse-1 to Info-mouse-follow-nearest-node

[Eli Zaretskii <eliz@gnu.org>]

> Date: Mon, 11 Apr 2011 17:53:31 +0200
> From: martin rudalics <rudalics@gmx.at>
> CC: emacs-devel@gnu.org
> 
>  > The immediate problem which triggers the error is that deactivate-mark
>  > is called after Info-mouse-follow-nearest-node already changed the
>  > node displayed in the *info* buffer, which involves narrowing the
>  > buffer to a different range of character positions, and that causes
>  > the region to reference the portion of the buffer outside the current
>  > restriction.
> 
> We could simply try doing
> 
> (buffer-substring-no-properties
>   (max (region-beginning) (point-min))
>   (min (region-end) (point-max)))
> 
> in `deactivate-mark'.  But I have no idea how the region should be
> defined when it's not entirely within the accessible portion of a
> buffer.

If it were up to me, I'd like first to understand (a) how come there's
an active region in this case, (b) why deactivate-mark doesn't try to
validate the region, and (c) why doesn't narrowing clip the region to
the accessible portion.