From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Christopher Dimech Newsgroups: gmane.emacs.bugs Subject: bug#57481: elisp code utilising derived-mode-parent Date: Tue, 30 Aug 2022 13:33:13 +0200 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="9704"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 57481@debbugs.gnu.org To: Phil Sainty Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Aug 30 13:34:14 2022 Return-path: Envelope-to: geb-bug-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 1oSzVV-0002Gg-Hf for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 30 Aug 2022 13:34:13 +0200 Original-Received: from localhost ([::1]:42050 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oSzVU-0001r2-M6 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Tue, 30 Aug 2022 13:33:13 +0200 Importance: normal Sensitivity: Normal In-Reply-To: X-UI-Message-Type: mail X-Priority: 3 X-Provags-ID: V03:K1:cwjfu4r9CLkk2nVkuXjF4V2KxQ9sHm4j9SeCvNlKypiODDV42Y0bBM6Ss2EwTyOxIvUSM 67VVVlxA439jsGHPtvGMcPv8jQT+vkqlbfJscC5ik6LjOlJkxfEKrVO0wOIAa35GIor62+Bachum NrjcgH7O8OtocBf7LPoNlrNhIOTbNqw4unaQNeg+bm6S4Tc0p3rw7e75xR0Ac2Eci+OjPC4i+QRS dV+pcsSOvoCu0Q+HF6z5cnZfNlPAhQykRjX0wI2Q7qdczKHjjIigANqT31CaixjdxMkXUT8v/lCO EY= X-UI-Out-Filterresults: notjunk:1;V03:K0:QQREh4ILQBE=:DHjVBHgxUFYqC4x2iOQspM hDL5WD7FHZSQS2DFmOSX7akPFBZDGcPvvfTRl+pOdF/H1Y+xI3lfkdQBI6RtmYb/v4fRr4u/6 pd22o9QGdGl+0ad73mu8mFNsqMKfbyyYyrcQEUpEGqosi3w3dUaGiakPZHEFRIWr5KlzPhZgZ CtmxILNn4DRSP+ehBSCNsDAapQqsGywJm0jzrlDTH7vBH9mQmsYHW0wlDIS813H0rCSsw64Dq VK7M1FCvRuvqRwPcfSWTwacll861r/zkyXGwISZ6iPoKj4b32BV5n8UeUR6fxXCoHta8qR5aA mPcVl04r7a/MWU4GJGPsdTMqOtj3hA6i1IMpvCKASz6mJptEqmA66qqxnlhVdlQtJ2nYKNIEi TxSWpyUmpqIEuhI5yQWY9Iz47PbI7BV8cOIRAixVj1m7pakf0L9sAQ6OWSrTReSzLlon6ilq7 +d54u8C/DG1ezEVazrpLKmjiHLr6CkMADcfFKSdgVgFtrZWYsLWVcmZn+y6qfXxyXKLyOxvNb 6MZCaur2itWRjkMHyxs76hsVgFJX7iezG8jGqw7wjyD7gSz62+aKeFQ7za3BWs34SsBjlH/H+ MFHAPKp+sW1FxPUCe0LTkoztpgN4JSZKgc+CbzblW5vJPE/sszy4swMz/NwZO4OkWT0jRAdOO BLo3GqOVZrF46I06/FZctOETU3st2eFJR0ugzywMu43BnhskS+AKb62Z3MuJAAHWRJ13Rfu0I l2ROj+jHzcH/AU8pLcG0JziasDxh7dNf5wRkMlKMR9jlbqhdROWRbuCDYINImTDd/gHR3R07 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:241111 Archived-At: > Sent: Tuesday, August 30, 2022 at 6:37 PM > From: "Phil Sainty" > To: "Christopher Dimech" > Cc: 57481@debbugs.gnu.org > Subject: bug#57481: elisp code utilising derived-mode-parent > > You can derive (as it were) such a function from the code of > `provided-mode-derived-p' like so: > > > (defun derived-mode-chain (mode) > "Return the chain of derived modes for MODE." > (let (chain) > (while (progn (push mode chain) > (let* ((parent (get mode 'derived-mode-parent)) > (parentfn (symbol-function parent))) > (setq mode (if (and parentfn (symbolp parentfn)) > parentfn > parent))))) > (nreverse chain))) > > > (derived-mode-chain 'latex-mode) > =3D> (latex-mode tex-mode text-mode) We are getting somewhere, but am only getting (latex-mode) on Emacs 27.2