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: Upcoming loss of usability of Emacs source files and Emacs. Date: Thu, 18 Jun 2015 20:32:09 +0300 Message-ID: <837fr0ly7a.fsf@gnu.org> References: <20150615142237.GA3517@acm.fritz.box> <87y4jkhqh5.fsf@uwakimon.sk.tsukuba.ac.jp> <557F3C22.4060909@cs.ucla.edu> <5580D356.4050708@cs.ucla.edu> <87si9qonxb.fsf@gnu.org> <87ioamz8if.fsf@petton.fr> <32013464-2300-46c6-ba46-4a3c36bfee5d@default> <87twu62nnt.fsf@mbork.pl> <21890.22217.610318.184683@a1i15.kph.uni-mainz.de> <83vbellgb7.fsf@gnu.org> <86vbel7wxf.fsf@dod.no> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE X-Trace: ger.gmane.org 1434648753 25209 80.91.229.3 (18 Jun 2015 17:32:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 18 Jun 2015 17:32:33 +0000 (UTC) Cc: emacs-devel@gnu.org To: Steinar Bang Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Jun 18 19:32:27 2015 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 1Z5dft-0001GB-CR for ged-emacs-devel@m.gmane.org; Thu, 18 Jun 2015 19:32:25 +0200 Original-Received: from localhost ([::1]:54242 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5dfs-0005yT-Qn for ged-emacs-devel@m.gmane.org; Thu, 18 Jun 2015 13:32:24 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:51729) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5dfp-0005wP-Ki for emacs-devel@gnu.org; Thu, 18 Jun 2015 13:32:22 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z5dfm-0003oP-AX for emacs-devel@gnu.org; Thu, 18 Jun 2015 13:32:21 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:33450) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5dfm-0003kY-3c for emacs-devel@gnu.org; Thu, 18 Jun 2015 13:32:18 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0NQ500400I0PUV00@a-mtaout22.012.net.il> for emacs-devel@gnu.org; Thu, 18 Jun 2015 20:32:16 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NQ5004SMI1RRO20@a-mtaout22.012.net.il>; Thu, 18 Jun 2015 20:32:16 +0300 (IDT) In-reply-to: <86vbel7wxf.fsf@dod.no> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 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:187288 Archived-At: > From: Steinar Bang > Date: Thu, 18 Jun 2015 19:23:24 +0200 >=20 > >>>>> Eli Zaretskii : >=20 > > Also, this doesn't handle decomposed characters, as in 'a=CC=8A'.= So this > > is not really Unicode-compliant, it's a half-measure of sorts. >=20 > (I'm not sure it is relevant for this discussion, but to the actual > users of "=C3=A5", "=C3=A5" isn't an "a-with-an-accent" but a prope= r letter in the > alphabet with its own position in the alphabet. That's true, but not really relevant. What I was saying was that thi= s letter can be found in text either as a single codepoint, E5, or as a sequence of 2 codepoints, 61 30A. Unicode mandates that in certain contexts, like search, users may want to treat both of these as equivalent, and match them. > When sorting Sorting is a related, but different issue, because it also requires a= n order relation between characters, whereas search only needs the equal/not equal relation. > In a search engine hits with "aa" instead of "=C3=A5" would be expe= cted, > but in emacs search I would only expect to hit "=C3=A5" and "=C3= =85") You might, but others might have other expectations. They should be able to have them.