From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.help Subject: RE: Cycle Org Shift Select Date: Tue, 10 Nov 2020 08:37:26 -0800 (PST) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30144"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Help Gnu Emacs To: Noam Postavsky , Christopher Dimech Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Nov 10 17:40:30 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 1kcWh4-0007jg-Ct for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 10 Nov 2020 17:40:30 +0100 Original-Received: from localhost ([::1]:54996 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kcWh1-00036f-ID for geh-help-gnu-emacs@m.gmane-mx.org; 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envelope-from=drew.adams@oracle.com; helo=userp2120.oracle.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/10 11:39:32 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, 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:125196 Archived-At: > (defun Org-Shftsel-Cycle () > (interactive) > (setq org-support-shift-select > (cadr (memq org-support-shift-select '(nil t always nil))))) Elegant Lisp, IMO! A good idiom. ___ Slightly cuter: the last nil isn't needed, since (car nil) =3D nil. (defvar toto nil) (defun foo () (interactive) (setq toto (cadr (memq toto '(nil t always)))) (message "NOW: %s" toto)) Of if you want to show also what'll come next: (defun foo () (interactive) (let ((xs '(nil t always)) next) (setq toto (cadr (memq toto xs)) next (cadr (memq toto xs))) (message "NOW: %s, NEXT: %s" toto next)))