From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: How to persist registers across sessions? Date: Fri, 01 Jul 2022 10:29:48 -0400 Message-ID: References: <87leti6b6e.fsf@codeisgreat.org> <871qv7a3ey.fsf@gmail.com> <83y1xe45ga.fsf@gnu.org> <83bkuaf8e5.fsf@gnu.org> <83zghte5gl.fsf@gnu.org> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40385"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:yVh8HMAWWw3nMTp2iYvh7SLKEXY= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 01 17:49:21 2022 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 1o7ItV-000AKy-JH for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 01 Jul 2022 17:49:21 +0200 Original-Received: from localhost ([::1]:37814 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o7ItU-00040F-1O for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 01 Jul 2022 11:49:20 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:43598) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o7Heg-0008T6-6g for help-gnu-emacs@gnu.org; Fri, 01 Jul 2022 10:29:58 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:36796) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o7Hee-0003o4-LZ for help-gnu-emacs@gnu.org; Fri, 01 Jul 2022 10:29:57 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1o7Hec-0007Ej-NI for help-gnu-emacs@gnu.org; Fri, 01 Jul 2022 16:29:54 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 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:138249 Archived-At: >> Another possibility is to use frameset-save. (Not surprisingly, >> desktop.el already uses it.) > > I have been testing, I see the output of below command, and it looks > like it does what it says, saving frameset. > > (frameset-save (frame-list)) > > It should be possible to "read" back from there: > > (read-from-string (prin1-to-string (frameset-save (frame-list)))) > > However, I get this error: > > eval: Invalid read syntax: "#" probably because somewhere inside I find this: > > (hywconfig-names (\"new1\" . #) > > Thus I think that (frameset-save (frame-list)) cannot reliably > produce Lisp object that I can read back if there is > # somewhere inside, as such is not readable. I think that's why you'd be better off trying to use the `desktop.el` code, which has already worked through those problems. Then again, maybe `desktop.el` suffers from the same problem, of course. Stefan