From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Alberto Luaces Newsgroups: gmane.emacs.help Subject: Re: Modify text appearance (put spaces after commas just for display) Date: Tue, 26 Sep 2017 18:34:58 +0200 Message-ID: <871smtwh8t.fsf@eps142.cdf.udc.es> References: <87tvzpx1qo.fsf@eps142.cdf.udc.es> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1506443742 29652 195.159.176.226 (26 Sep 2017 16:35:42 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 26 Sep 2017 16:35:42 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Sep 26 18:35:36 2017 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 1dwspZ-0007Bn-UF for geh-help-gnu-emacs@m.gmane.org; Tue, 26 Sep 2017 18:35:34 +0200 Original-Received: from localhost ([::1]:50271 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dwsph-0006PE-BI for geh-help-gnu-emacs@m.gmane.org; Tue, 26 Sep 2017 12:35:41 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:43272) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dwspG-0006Ox-0p for help-gnu-emacs@gnu.org; Tue, 26 Sep 2017 12:35:14 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dwspD-0006Tj-CL for help-gnu-emacs@gnu.org; Tue, 26 Sep 2017 12:35:14 -0400 Original-Received: from [195.159.176.226] (port=57231 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dwspD-0006TN-55 for help-gnu-emacs@gnu.org; Tue, 26 Sep 2017 12:35:11 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1dwsp1-00052B-NR for help-gnu-emacs@gnu.org; Tue, 26 Sep 2017 18:34:59 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 31 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:HP8YgbXty1OeH1nF3RkfPr25GBE= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 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:114423 Archived-At: Nick Helm writes: > Alberto Luaces writes: > >> Hello, I have some inherited code where the style used was to squeeze >> every single non-required white-space. There are long lists of >> comma-separated values with any spaces on them, rendering the code very >> difficult to read. >> >> So, from the top of your head, what would be the less painful method to >> change every comma to a comma+space, or at least change the color of the >> commas to anything more distinguishable and attach it to the language >> mode hook? > > Another option is to alter the buffer's display table by repurposing > whitespace-mode. For example: > > (add-hook 'text-mode-hook (lambda () > (set (make-local-variable 'whitespace-style) '(space-mark)) > (set (make-local-variable 'whitespace-display-mappings) > '((space-mark 44 [44 32]))) > (whitespace-mode))) > > Change the hook to the language mode you're using. M-x whitespace-mode > toggles the effect off and on, as usual. That is nice, Nick. Besides that, I have learned that whitespace-mode can be customized so deeply thanks to you! -- Alberto