[Fwd: Re: TODO item: the mark and overlay in revert-buffer]

[Fwd: Re: TODO item: the mark and overlay in revert-buffer]

[Vinicius Jose Latorre]

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I'm resending this email.




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From: Vinicius Jose Latorre <viniciusjl@ig.com.br>
To: rms@gnu.org
Cc: emacs-devel@gnu.org
Subject: Re: TODO item: the mark and overlay in revert-buffer
Date: Mon, 10 Dec 2007 22:31:36 -0300
Message-ID: <475DE878.4080707@ig.com.br>


> Would someone please install this, then ack?
> (And thank him.)
>   

Done in CVS trunk.

> From: Yoni Rabkin Katzenell <yoni-r@actcom.com>
> To: emacs-devel@gnu.org
> Date: Wed, 05 Dec 2007 18:54:32 +0200
> Message-ID: <871wa16q0n.fsf@actcom.com>
> MIME-Version: 1.0
> Content-Type: multipart/mixed; boundary="=-=-="
> Subject: TODO item: the mark and overlay in revert-buffer
>
> --=-=-=
>
>
> Hello, I am using GNU Emacs 23.0.50.1 (i686-pc-linux-gnu, X toolkit,
>  Xaw3d scroll bars) of 2007-12-05
>
> /etc/TODO says: revert-buffer should eliminate overlays and the mark.
>
> This patch should do that. It removes the mark, mark-ring and all
> overlays after `before-revert-hook' is run and before
> `after-revert-hook' is run.
>
> Additionally, the patch changes the doc-string to be more explicit about
> how other modes use revert-buffer via 'revert-buffer-function'.
>
>
> --=-=-=
> Content-Type: text/x-diff
> Content-Disposition: inline; filename=2007-12-05-revert.patch
> Content-Description: revert-buffer patch
>
> *** old/files.el	2007-12-05 18:03:59.000000000 +0200
> --- new/files.el	2007-12-05 18:03:54.000000000 +0200
> ***************
> *** 4204,4213 ****
>   With a prefix argument, offer to revert from latest auto-save file, if
>   that is more recent than the visited file.
>   
> ! This command also works for special buffers that contain text which
> ! doesn't come from a file, but reflects some other data base instead:
> ! for example, Dired buffers and `buffer-list' buffers.  In these cases,
> ! it reconstructs the buffer contents from the appropriate data base.
>   
>   When called from Lisp, the first argument is IGNORE-AUTO; only offer
>   to revert from the auto-save file when this is nil.  Note that the
> --- 4204,4215 ----
>   With a prefix argument, offer to revert from latest auto-save file, if
>   that is more recent than the visited file.
>   
> ! This command also implements an interface for special buffers
> ! that contain text which doesn't come from a file, but reflects
> ! some other data instead (e.g. Dired buffers, `buffer-list'
> ! buffers). This is done via the variable
> ! `revert-buffer-function'. In these cases, it should reconstruct
> ! the buffer contents from the appropriate data.
>   
>   When called from Lisp, the first argument is IGNORE-AUTO; only offer
>   to revert from the auto-save file when this is nil.  Note that the
> ***************
> *** 4323,4329 ****
>   			   (insert-file-contents file-name (not auto-save-p)
>   						 nil nil t))
>   		       (insert-file-contents file-name (not auto-save-p)
> ! 					     nil nil t)))))
>   		 ;; Recompute the truename in case changes in symlinks
>   		 ;; have changed the truename.
>   		 (setq buffer-file-truename
> --- 4325,4335 ----
>   			   (insert-file-contents file-name (not auto-save-p)
>   						 nil nil t))
>   		       (insert-file-contents file-name (not auto-save-p)
> ! 					     nil nil t))
> ! 		     ;; Reset the mark and remove all overlays.
> ! 		     (setq mark-active nil
> ! 			   mark-ring nil)
> ! 		     (remove-overlays))))
>   		 ;; Recompute the truename in case changes in symlinks
>   		 ;; have changed the truename.
>   		 (setq buffer-file-truename
>
> --=-=-=
>   


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