GNU bug report logs - #37472
26.2; completion-kill-region breaks rectangle-mark-mode

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Package: emacs; Reported by: Jens Lautenbacher <jtl@HIDDEN>; dated Sat, 21 Sep 2019 00:46:01 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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Subject: Re: bug#37472: 26.2; completion-kill-region breaks rectangle-mark-mode
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> From: Jens Lautenbacher <jtl@HIDDEN>
> Date: Sat, 21 Sep 2019 02:14:04 +0200
> 
> 
> When using dynamic completion, rectangle-mark-mode is broken, in so far
> as C-w no longer respects just killing the rectangle but instead kills
> the usual full (non-rectangular) region.
> 
> M-w on the other hand works, because it is the original function, while
> C-w is overloaded with completion-kill-region.

Why does completion.el overrides the global C-w binding?  I think it's
wrong, certainly when the new binding is incompatible with the default
one.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#37472; Package emacs. Full text available.

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Subject: 26.2; completion-kill-region breaks rectangle-mark-mode
From: Jens Lautenbacher <jtl@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Date: Sat, 21 Sep 2019 02:14:04 +0200
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When using dynamic completion, rectangle-mark-mode is broken, in so far
as C-w no longer respects just killing the rectangle but instead kills
the usual full (non-rectangular) region.

M-w on the other hand works, because it is the original function, while
C-w is overloaded with completion-kill-region.

To test: try C-w after C-x SPC once bound to kill-region and once bound
to completion-kill-region (or simply M-x the two functions with an
active rectangular region).

I have "fixed" it in my init.el in the following hackish way:

(add-hook 'rectangle-mark-mode-hook
      (lambda ()
        (if rectangle-mark-mode ;; entering...
            (if (not dynamic-completion-mode)
                (setq restore--dyncomplete nil)
              (setq restore--dyncomplete t)
              (dynamic-completion-mode -1))
          ;; ...else leaving
          (if restore--dyncomplete
              (dynamic-completion-mode t)))))

but this seems pretty clumpsy - actually so much that I removed it
again
and just shut off dynamic completion completely...



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Acknowledgement sent to Jens Lautenbacher <jtl@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#37472; Package emacs. Full text available.
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