From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: Removing line and column number settings from some buffers Date: Fri, 4 Dec 2020 09:07:51 +0300 Message-ID: References: <87sg8mbkpt.fsf@web.de> <87czzq9xq5.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24810"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.0 (3d08634) (2020-11-07) Cc: Michael Heerdegen , Christopher Dimech , help-gnu-emacs@gnu.org To: daniela-spit@gmx.it Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Dec 04 07:11:23 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kl4JN-0006Kr-Rr for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 04 Dec 2020 07:11:21 +0100 Original-Received: from localhost ([::1]:46570 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kl4JM-0007oI-3Q for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 04 Dec 2020 01:11:20 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:32796) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kl4Hy-0007n5-7Z for help-gnu-emacs@gnu.org; Fri, 04 Dec 2020 01:09:56 -0500 Original-Received: from static.rcdrun.com ([95.85.24.50]:54577) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kl4Hv-0000KE-AZ for help-gnu-emacs@gnu.org; Fri, 04 Dec 2020 01:09:52 -0500 Original-Received: from localhost ([::ffff:197.157.0.57]) (AUTH: PLAIN admin, TLS: TLS1.2,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by static.rcdrun.com with ESMTPSA id 00000000002C0006.000000005FC9D2AA.00001B90; Fri, 04 Dec 2020 06:09:43 +0000 Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=95.85.24.50; envelope-from=bugs@gnu.support; helo=static.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:125954 Archived-At: * daniela-spit@gmx.it [2020-12-04 05:10]: > What I want to do is to change the Mode Line, but then revert back to how it > was in that buffer, by continue pressing same keybinding. Can I store the > old setup and then put it back again. As each setting is variable one can store it in other variable or into file, and get it back later. (defun string-to-file-force (string file) "Prints string into file, matters not if file exists. Returns FILE as file name." (with-temp-file file (insert string)) file) (defun file-to-string (file) "File to string function" (with-temp-buffer (insert-file-contents file) (buffer-string))) (defun data-to-file (data file) "PRIN1 Emacs Lisp DATA to FILE" (string-to-file-force (prin1-to-string data) file)) (defun data-from-file (file) "Reads and returns Emacs Lisp data from FILE" (car (read-from-string (file-to-string file)))) With those I am storing data into files and reading from files. It can be just any complex Emacs Lisp data structure like hashes, it can be lists, variables, just anything. (setq my-hash (data-from-file "~/tmp/hash")) (data-to-file mode-line-format "~/.emacs.d/modeline-saved.el") saves `mode-line-format' into: "~/.emacs.d/modeline-saved.el" with data looking like this: ("%e" mode-line-front-space mode-line-mule-info mode-line-client mode-line-modified mode-line-remote mode-line-frame-identification mode-line-buffer-identification " " mode-line-position (vc-mode vc-mode) " " mode-line-modes mode-line-misc-info mode-line-end-spaces) and (setq mode-line-format (data-from-file "~/.emacs.d/modeline-saved.el")) loads the data from file back into `mode-line-format' Jean