From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: Re: How to save custom variable programmatically? Date: Wed, 11 Nov 2020 22:20:48 +0100 Message-ID: <87ft5fpp3j.fsf@mbork.pl> References: <87blg5e9re.fsf@web.de> <87o8k5b7oq.fsf@web.de> <87wnytoses.fsf@mbork.pl> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5269"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: mu4e 1.1.0; emacs 27.0.50 Cc: Michael Heerdegen , help-gnu-emacs@gnu.org To: Jean Louis Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Nov 11 22:21:39 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 1kcxYg-0001FV-NH for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 11 Nov 2020 22:21:38 +0100 Original-Received: from localhost ([::1]:49528 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kcxYf-0001bb-Ib for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 11 Nov 2020 16:21:37 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35058) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kcxYH-0001b2-V7 for help-gnu-emacs@gnu.org; Wed, 11 Nov 2020 16:21:13 -0500 Original-Received: from mail.mojserwer.eu ([195.110.48.8]:40994) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kcxYA-0002f0-Ol for help-gnu-emacs@gnu.org; Wed, 11 Nov 2020 16:21:13 -0500 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id D9D9FE6D68; Wed, 11 Nov 2020 22:20:56 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LHPOOHpCsPLm; Wed, 11 Nov 2020 22:20:48 +0100 (CET) Original-Received: from localhost (178235147175.dynamic-3-poz-k-0-1-0.vectranet.pl [178.235.147.175]) by mail.mojserwer.eu (Postfix) with ESMTPSA id 9D0A2E6256; Wed, 11 Nov 2020 22:20:48 +0100 (CET) In-reply-to: Received-SPF: pass client-ip=195.110.48.8; envelope-from=mbork@mbork.pl; helo=mail.mojserwer.eu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/11 16:20:57 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=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:125243 Archived-At: On 2020-11-10, at 22:46, Jean Louis wrote: > * Marcin Borkowski [2020-11-10 23:42]: >> >> On 2020-11-10, at 20:19, Jean Louis wrote: >> >> > * Michael Heerdegen [2020-11-10 17:36]: >> >> Jean Louis writes: >> >> >> >> > If there is anyway of storing data from Emacs that is standard I do >> >> > not know about it. Welcoming tips. >> >> >> >> The eieio-persistent class is made for that purpose. >> >> >> >> You make your data/database/whatever an object of a class you define as >> >> you like, and make that class inherit from eieio-persistent. Then your >> >> data is savable out of the box. >> >> >> >> (info "(eieio) eieio-persistent") >> >> >> >> Do you need an example? >> > >> > Thank you. If you have ready simplest example it may be useful for >> > review. >> > >> > My strategy is to minimize number of packages used as dependencies so >> > I try to use what is built in or to re-use what is inside of Emacs. >> >> You might get inspired by an old post of mine here: >> http://mbork.pl/2018-09-10_Persisting_Emacs_variables > > Nice post and Wiki. Reference taken. I can read the flow somehow. You > watching in the file by trying to read ^(setq if variable exists, if I > get it well. It relies on personal use case and common usage of > setq. What if variable is b that is set with: > > (set (quote b) 1) > > or > > (setq a 1 b 2) > > or > > (setq a 1 > b 2 > c 3) > > or > > (setf b 1) Well, it won't work;-). The idea is, though, that this line is put in init.el automatically and not tampered manually. Best, -- Marcin Borkowski http://mbork.pl