From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: Making a non-ASCII space character visible Date: Sun, 17 Jun 2018 08:55:21 +0300 Message-ID: <83o9gax8hi.fsf@gnu.org> References: <87po0qoval.fsf@web.de> NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1529214834 4942 195.159.176.226 (17 Jun 2018 05:53:54 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 17 Jun 2018 05:53:54 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Jun 17 07:53:50 2018 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fUQdK-00017x-Gv for geh-help-gnu-emacs@m.gmane.org; Sun, 17 Jun 2018 07:53:50 +0200 Original-Received: from localhost ([::1]:53936 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fUQfP-0000pT-QN for geh-help-gnu-emacs@m.gmane.org; Sun, 17 Jun 2018 01:55:59 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57150) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fUQey-0000pO-DY for help-gnu-emacs@gnu.org; Sun, 17 Jun 2018 01:55:33 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fUQev-0002Up-93 for help-gnu-emacs@gnu.org; Sun, 17 Jun 2018 01:55:32 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:45935) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fUQeu-0002Ug-Vi for help-gnu-emacs@gnu.org; Sun, 17 Jun 2018 01:55:29 -0400 Original-Received: from [176.228.60.248] (port=4846 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1fUQeu-0007Pb-9g for help-gnu-emacs@gnu.org; Sun, 17 Jun 2018 01:55:28 -0400 In-reply-to: <87po0qoval.fsf@web.de> (message from Michael Heerdegen on Sun, 17 Jun 2018 07:07:30 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:117179 Archived-At: > From: Michael Heerdegen > Date: Sun, 17 Jun 2018 07:07:30 +0200 > Cc: help-gnu-emacs@gnu.org > > Will Parsons writes: > > > I have a desire to use the Unicode character A007 (FIGURE SPACE) in a > > document and to be able to distinguish it visually from a regular ASCII > > space. This seems to be already done in the case of 00A0 (NO-BREAK > > SPACE) which appears as an underscore with a distinctive face. > > > > It *looks* like I should be able to do this via the customization > > option "Whitespace Display Mappings", but no matter what I do, > > attempting to "Apply" the changes results in an error message, "This > > field should contain a single character". > > Seems you tried to insert a printed representation of the character? > AFAIK you must insert the character. You can achieve this with M-: > (insert ?\x2007) for example. Yes, that's not so nice. ??? How does that differ from "C-x 8 RET 2007 RET"? The latter is the standard way of inserting characters in Emacs. If you did succeed to customize that variable, can you show a step by step recipe?