bug#16149: 24.3.50; rectangle-mark-mode: Tabs + Inability to C-x r o a rect. of width 4

bug#16149: 24.3.50; rectangle-mark-mode: Tabs + Inability to C-x r o a rect. of width 4

[Jambunathan K]

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In the attached screenshot, I am trying to C-x r o a rect. of width 4.
The intention is to indent the whole snippet to column 4.

Now, if you move the cursor vertically down (and subsequently in the
horizontal direction), you will note that the highlighted region
"forcibly" becomes zero width or of 8 chars.

I can in no way rest the cursor at col. 4 (on a row that has the tabs)

Note that the buffer in whitespace mode suggest the presence of tabs.

--8<---------------cut here---------------start------------->8---
(require 'diminish)
(add-hook 'emacs-lisp-mode-hook
	  (lambda nil
	    (setq mode-name "")
	    (mapc (lambda (m) (ignore-errors (diminish m)))
		  '(hi-lock-mode eldoc-post-insert-mode outline-minor-mode))))
--8<---------------cut here---------------end--------------->8---



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In GNU Emacs 24.3.50.16 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2013-12-14 on debian-6.05
Bzr revision: 115513 eggert@cs.ucla.edu-20131213222705-q98div39wrjmw0lv
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
System Description:	Debian GNU/Linux 6.0.5 (squeeze)

bug#16149: 24.3.50; rectangle-mark-mode: Tabs + Inability to C-x r o a rect. of width 4

[Glenn Morris]

I assumed that when you went around like a petulant child and closed all
your bugs, that was you done. Not sure why now you are back and opening
more bugs, nor why anyone should invest time on them.

bug#16149: 24.3.50; rectangle-mark-mode: Tabs + Inability to C-x r o a rect. of width 4

[Glenn Morris]

Jambunathan K. wrote (on Sun, 15 Dec 2013 at 02:02 +0530):

> You don't invest time, simple.  Better done than said.

Glad we agree. Closing.

bug#16149: 24.3.50; rectangle-mark-mode: Tabs + Inability to C-x r o a rect. of width 4

[Stefan Monnier]

> In the attached screenshot, I am trying to C-x r o a rect. of width 4.
> The intention is to indent the whole snippet to column 4.
> Now, if you move the cursor vertically down (and subsequently in the
> horizontal direction), you will note that the highlighted region
> "forcibly" becomes zero width or of 8 chars.

Not sure what this has to do with rectangle-mark-mode.  The same holds
in all Emacs versions so far.

> I can in no way rest the cursor at col. 4 (on a row that has the tabs)

Sure you can: C-a C-x C-x C-4 C-f.

But, yes, this is a limitation that is difficult to fix in the old
rectangle UI whereas the rectangle-mark-mode offers the possibility to
fix it more easily, at least from the UI point of view.
The implementation is still missing (tho cua-rect.el provides the
feature already).


        Stefan

bug#16149: 24.3.50; rectangle-mark-mode: Tabs + Inability to C-x r o a rect. of width 4

[Jambunathan K]

Stefan Monnier <monnier@IRO.UMontreal.CA> writes:

> But, yes, this is a limitation that is difficult to fix in the old
> rectangle UI whereas the rectangle-mark-mode offers the possibility to
> fix it more easily, at least from the UI point of view.
> The implementation is still missing (tho cua-rect.el provides the
> feature already).

This will be useful, if available.