From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: C-h r and Images Date: Mon, 02 Sep 2013 08:28:51 -0700 Organization: UCLA Computer Science Department Message-ID: <5224AEB3.5000508@cs.ucla.edu> References: <87y57fe2ej.fsf@gmail.com> <831u57e089.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1378135763 31706 80.91.229.3 (2 Sep 2013 15:29:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 2 Sep 2013 15:29:23 +0000 (UTC) Cc: Jambunathan K , emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Sep 02 17:29:25 2013 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VGW4C-0001BP-LN for ged-emacs-devel@m.gmane.org; Mon, 02 Sep 2013 17:29:24 +0200 Original-Received: from localhost ([::1]:40549 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VGW4C-0002mM-8T for ged-emacs-devel@m.gmane.org; Mon, 02 Sep 2013 11:29:24 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:51040) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VGW42-0002kT-4p for emacs-devel@gnu.org; Mon, 02 Sep 2013 11:29:21 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VGW3u-0001cc-Rp for emacs-devel@gnu.org; Mon, 02 Sep 2013 11:29:14 -0400 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:37548) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VGW3n-0001ZG-1c; Mon, 02 Sep 2013 11:28:59 -0400 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id CD30139E8106; Mon, 2 Sep 2013 08:28:51 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aTnxTL6sNdrZ; Mon, 2 Sep 2013 08:28:51 -0700 (PDT) Original-Received: from [192.168.1.9] (pool-71-108-49-126.lsanca.fios.verizon.net [71.108.49.126]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id 6148039E8105; Mon, 2 Sep 2013 08:28:51 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130803 Thunderbird/17.0.8 In-Reply-To: <831u57e089.fsf@gnu.org> X-Enigmail-Version: 1.5.2 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 131.179.128.62 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:163128 Archived-At: Eli Zaretskii wrote: >> > Is it because the Info browser doesn't support it. > Of course, it does! Try reading the GnuTLS Info manual, for example. I just now tried that, and it didn't work for me. I visited (gnutls)TLS layers, and it said "[broken image]" instead of showing an image for Figure 3.1. This is on Fedora 19 x86-64. Perhaps this is a problem with that distribution, or perhaps with Emacs on GNUish platforms, but either way I'm pretty sure that images won't work with the standalone info viewer. Furthermore, images won't work well for users who have trouble seeing -- not only the 100% blind, but those who have age-related macular degeneration and similar problems. These people often use screen readers such as Orca, and so can grok text fairly well, but the images' contents will be difficult for them to see, or may be invisible to them. For all these reasons, images in technical manuals should generally not be the sole source of information that they contain. It's definitely OK to have images, but there should be an alternative way of getting the gist of any technical information that an image conveys. Unfortunately, that doesn't appear to be true for the GnuTLS manual, at least not if my cursory examination of Figure 3.1 is correct.