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 17:01:00 +0300 Message-ID: <8336gddgtf.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> <83blv2e00m.fsf@gnu.org> <874l0tew98.fsf@gnus.org> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="13450"; 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 16:01:57 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 1iEwFQ-0003K6-Pd for ged-emacs-devel@m.gmane.org; Mon, 30 Sep 2019 16:01:56 +0200 Original-Received: from localhost ([::1]:52872 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iEwFP-0005xT-JU for ged-emacs-devel@m.gmane.org; Mon, 30 Sep 2019 10:01:55 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50024) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iEwEY-0005xH-34 for emacs-devel@gnu.org; Mon, 30 Sep 2019 10:01:06 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:39762) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iEwEX-0007hD-ST; Mon, 30 Sep 2019 10:01:01 -0400 Original-Received: from [176.228.60.248] (port=4688 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1iEwEX-00053X-Cn; Mon, 30 Sep 2019 10:01:01 -0400 In-reply-to: <874l0tew98.fsf@gnus.org> (message from Lars Ingebrigtsen on Mon, 30 Sep 2019 15:42:11 +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:240413 Archived-At: > From: Lars Ingebrigtsen > Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org > Date: Mon, 30 Sep 2019 15:42:11 +0200 > > Eli Zaretskii writes: > > > I don't think I understand why we can't put the association in > > auto-mode-alist before running "gm convert". Please elaborate why. > > If we put (say) .webp into auto-mode-alist, but we can't read .webp > files, then image-mode will end up issuing an error when called on these > files. I thought when image-mode is invoked, the external converter is called automagically, no? > Besides, what formats "gm convert" supports changes over time. By > consulting it, auto-mode-alist will be automatically updated without us > having to do anything. Yes, but I think it's better to have a solution that is 99% correct and simple, rather than one that is 100% and much more complex. After all, this is somewhat obscure use case, at least for now. > > Not "do nothing", but display an error message saying this image > > format is unsupported, IMO. > > Yup. I meant "do nothing" in the image-mode context, which means "show > the data as raw bytes and signal an error". Right.