From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Image-conversion shims Date: Mon, 30 Sep 2019 10:06:17 +0300 Message-ID: <83blv2e00m.fsf@gnu.org> References: <87v9tctcca.fsf@gnus.org> <87impct2xf.fsf@gnus.org> <83zhinfufb.fsf@gnu.org> <87ftkfnx7a.fsf@gnus.org> <83eezzfh8c.fsf@gnu.org> <8736gea0do.fsf@gnus.org> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="120360"; mail-complaints-to="usenet@blaine.gmane.org" Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org To: Lars Ingebrigtsen Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Sep 30 09:06:28 2019 Return-path: Envelope-to: ged-emacs-devel@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 1iEplM-000V9d-7o for ged-emacs-devel@m.gmane.org; Mon, 30 Sep 2019 09:06:28 +0200 Original-Received: from localhost ([::1]:46584 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iEplL-0002wO-3L for ged-emacs-devel@m.gmane.org; Mon, 30 Sep 2019 03:06:27 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40643) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iEplF-0002v0-JC for emacs-devel@gnu.org; Mon, 30 Sep 2019 03:06:22 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:33929) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iEplF-0006ir-AW; Mon, 30 Sep 2019 03:06:21 -0400 Original-Received: from [176.228.60.248] (port=2669 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1iEplD-0001sU-I6; Mon, 30 Sep 2019 03:06:20 -0400 In-reply-to: <8736gea0do.fsf@gnus.org> (message from Lars Ingebrigtsen on Mon, 30 Sep 2019 06:12:03 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:240405 Archived-At: > From: Lars Ingebrigtsen > Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org > Date: Mon, 30 Sep 2019 06:12:03 +0200 > > > Actually, why not simply add the relevant extensions to > > auto-mode-alist, causing them to invoke image-mode? > > But when do we do that? To determine what the list of supported formats > is, we have to run `image-converter--probe' (etc). But we don't know > whether we need to do that until we know that we're going to load an > unsupported image format. :-/ > > I.e., we want ("*.webp" . image-mode) in auto-mode-alist, but we can't > put it there before we've called "gm convert -list format" I don't think I understand why we can't put the association in auto-mode-alist before running "gm convert". Please elaborate why. > Uhm. Perhaps map .wepb etc to a new image-mode-external that should > just be a mode that inherits from image-mode, but would do nothing if > the image-external-converter-mode has been toggled off? Not "do nothing", but display an error message saying this image format is unsupported, IMO.