bug#9666: 24.0.50; C-d has unexpected behaviour in CUA rectangle mode

[Stephen Berman <stephen.berman@gmx.net>]

On Tue, 04 Oct 2011 09:55:00 +0200 Stefan Reichör <stefan@xsteve.at> wrote:

> Stephen Berman <stephen.berman@gmx.net> writes:
>
>> On Tue, 04 Oct 2011 08:30:29 +0200 Stefan Reichör <stefan@xsteve.at> wrote:
>>
>>> Just activate cua mode, select an rectangle and hit DEL or C-d:
>>> M-x cua-mode
>>> C-RET
>>> select rectangle
>>> DEL
>>>
>>> I expect this command to delete the whole rectangle
>>>
>>> But it deletes only one character and deactivates the marked
>>> rectangle
>> [...]
>>> In GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600)
>>>  of 2011-09-12 on 3249CTO
>>> Windowing system distributor `Microsoft Corp.', version 5.1.2600
>>> configured using `configure --with-gcc (4.5) --no-opt'
>>
>> I see somewhat different behavior with the above recipe: DEL (backspace
>> key), deletes the one-column rectangle immediately following the
>> selected rectangle, and does not deactivate (unhighlight) the latter;
>> C-d, on the other hand, does delete the selected rectangle.  This is on
>> GNU Emacs 24.0.90.3 (i686-suse-linux-gnu, GTK+ Version 2.22.1) of
>> 2011-10-04 on escher.
>
> Digging further into this problem.
> There are some modes that bind delete (not BS) to delete-forward-char (e.g. the
> *scratch* buffer).

Ah, I guess you also meant <delete> above, not DEL.  With <delete> I
also see what you reported.  This is indeed different from the behavior
of <delete> with an active (highlighted) region.

> When this is the case the rectangle is not deleted.

> When delete is bound to delete-char then the rectangle is deleted as expected.

But the standard binding of delete-char is C-d, which you (meant to)
report above behaves like <delete> (assuming you meant that key instead
of DEL); see also your Subject header.  Whereas, as I said, I do get
deletion with C-d.  So the unexpected behavior in cua-mode is (just) with
<delete> (bound to delete-forward-char), is that what you're saying?  If
so, I agree (assuming, that is, that <delete> should behave the same
with rectangles in cua-mode and with active regions outside of cua-mode;
I don't know, since I haven't made much use of cua-mode).

Steve Berman