From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: How to reliably edit a file from within Emacs Lisp and return a string? Date: Sat, 24 Aug 2019 16:55:12 +0200 Message-ID: <20190824145512.GA11684@protected.rcdrun.com> References: <20190822224604.GA10900@protected.rcdrun.com> <83o90gb9u7.fsf@gnu.org> <20190823140145.GA28153@protected.rcdrun.com> <83lfvkj6wd.fsf@gnu.org> <20190824121924.GQ5516@protected.rcdrun.com> <83r25aiw4f.fsf@gnu.org> <20190824124120.GT5516@protected.rcdrun.com> <83mufyitye.fsf@gnu.org> <20190824141421.GB11116@protected.rcdrun.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="81670"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Mutt/1.10.1 (2018-07-13) Cc: help-gnu-emacs@gnu.org To: Eli Zaretskii Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Aug 24 16:55:42 2019 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1i1XS8-000L8A-3k for geh-help-gnu-emacs@m.gmane.org; Sat, 24 Aug 2019 16:55:40 +0200 Original-Received: from localhost ([::1]:38126 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i1XS5-0007CU-7d for geh-help-gnu-emacs@m.gmane.org; Sat, 24 Aug 2019 10:55:37 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54572) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i1XRp-00079f-A3 for help-gnu-emacs@gnu.org; Sat, 24 Aug 2019 10:55:22 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i1XRo-0003ia-A9 for help-gnu-emacs@gnu.org; Sat, 24 Aug 2019 10:55:21 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:45571) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i1XRk-0003fZ-Rl; Sat, 24 Aug 2019 10:55:17 -0400 Original-Received: from protected.rcdrun.com ([::ffff:31.223.149.228]) (AUTH: PLAIN admin, TLS: TLS1.2,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 00000000000320E7.000000005D614FD2.00004B8D; Sat, 24 Aug 2019 07:55:13 -0700 Original-Received: from localhost (localhost [127.0.0.1]) (uid 1001) by protected.rcdrun.com with local id 00000000000C9452.000000005D614FD0.00002DF7; Sat, 24 Aug 2019 16:55:12 +0200 Content-Disposition: inline In-Reply-To: <20190824141421.GB11116@protected.rcdrun.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 217.170.207.13 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.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:121365 Archived-At: * Jean Louis [2019-08-24 16:15]: > Thank you, it is solved! > > Jean > > (defun edit-db-field-value (table field type id value file) > (string-to-file-force value file) > (let* ((buffer (create-file-buffer file))) > (switch-to-buffer buffer) > (set-visited-file-name file) > (insert value) > (add-hook 'kill-buffer-hook `(lambda () > (let ((new-value (file-to-string ,file))) > (rcd-db-update-entry ,table ,field ,type ,id new-value))) > 0 t))) > I was just thinking it is solved, but it does not solves anything but that string can be read into the file. However, that way program execution does not continue. There is no waiting loop or something like that. It just makes sure that one field is read back into string. Very sad... Jean