From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: non-breaking hyphens Date: Tue, 18 Oct 2011 06:00:15 +0200 Message-ID: <83r52buey8.fsf@gnu.org> References: <87d3dvg1r5.fsf@gnu.org> <87ehybm0i0.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1318910427 17239 80.91.229.12 (18 Oct 2011 04:00:27 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 18 Oct 2011 04:00:27 +0000 (UTC) Cc: emacs-devel@gnu.org To: Chong Yidong Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Oct 18 06:00:23 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RG0ql-0007Fo-4z for ged-emacs-devel@m.gmane.org; Tue, 18 Oct 2011 06:00:23 +0200 Original-Received: from localhost ([::1]:46002 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RG0qk-0000gx-O1 for ged-emacs-devel@m.gmane.org; Tue, 18 Oct 2011 00:00:22 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:41385) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RG0qh-0000gh-Ni for emacs-devel@gnu.org; Tue, 18 Oct 2011 00:00:21 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RG0qg-0006lH-QX for emacs-devel@gnu.org; Tue, 18 Oct 2011 00:00:19 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:34740) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RG0qe-0006jP-Su; Tue, 18 Oct 2011 00:00:17 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0LT800500TLVWD00@a-mtaout22.012.net.il>; Tue, 18 Oct 2011 06:00:15 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([77.124.212.197]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0LT8005T2TSEH4C0@a-mtaout22.012.net.il>; Tue, 18 Oct 2011 06:00:15 +0200 (IST) In-reply-to: <87ehybm0i0.fsf@gnu.org> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 (beta) X-Received-From: 80.179.55.172 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:145287 Archived-At: > From: Chong Yidong > Cc: emacs-devel@gnu.org > Date: Mon, 17 Oct 2011 23:39:35 -0400 > > I'm not sure I understand the goal of `nobreak-char-display'. Is it for > warning the user when there is an ASCII look-alike character that isn't > really ASCII? I guess that's mainly to avoid issues with source code? Yes, probably. But I'm only guessing here. Can you find any traces of discussing this in the archives? > If so, handling only U+A0 and U+AD would be incomplete, as you say. > Also, the name and documentation of `nobreak-char-display' is misleading > or incomplete---it shouldn't be limited to non-breaking or shy > characters, since there are many other non-ASCII lookalikes like U+2010 > (the "true" hyphen), U+2002 (the "en space"), and U+2007 (the "figure > space"). I agree. > I'm guessing the reason U+A0 and U+AD are treated specially is that > those characters happened to be in Latin-1 (i.e. hysterical raisins). Most probably.