From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ivan Shmakov Newsgroups: gmane.emacs.bugs Subject: bug#20385: Support curved quotes in doc strings Date: Thu, 14 May 2015 20:05:53 +0000 Message-ID: <878ucqj55q.fsf@violet.siamics.net> References: <1429555155-4695-1-git-send-email-eggert@cs.ucla.edu> <5552FDAC.4080004@cs.ucla.edu> <55534080.6010400@yandex.ru> <555369FD.30701@cs.ucla.edu> <5553D12F.7000809@yandex.ru> <87d223iq1a.fsf_-_@violet.siamics.net> <831tijjjjc.fsf@gnu.org> 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 1431634046 16570 80.91.229.3 (14 May 2015 20:07:26 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 14 May 2015 20:07:26 +0000 (UTC) To: 20385@debbugs.gnu.org, eggert@cs.ucla.edu, dgutov@yandex.ru Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu May 14 22:07:12 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1YszPT-0002qB-86 for geb-bug-gnu-emacs@m.gmane.org; Thu, 14 May 2015 22:07:11 +0200 Original-Received: from localhost ([::1]:56609 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YszPS-0000QT-Ds for geb-bug-gnu-emacs@m.gmane.org; Thu, 14 May 2015 16:07:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:50129) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YszPO-0000QO-JC for bug-gnu-emacs@gnu.org; Thu, 14 May 2015 16:07:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YszPL-0003FB-DE for bug-gnu-emacs@gnu.org; Thu, 14 May 2015 16:07:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:35441) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YszPK-0003E6-L2 for bug-gnu-emacs@gnu.org; Thu, 14 May 2015 16:07:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YszPK-0003sz-18 for bug-gnu-emacs@gnu.org; Thu, 14 May 2015 16:07:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Ivan Shmakov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 14 May 2015 20:07:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20385 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 20385-submit@debbugs.gnu.org id=B20385.143163397114866 (code B ref 20385); Thu, 14 May 2015 20:07:01 +0000 Original-Received: (at 20385) by debbugs.gnu.org; 14 May 2015 20:06:11 +0000 Original-Received: from localhost ([127.0.0.1]:45416 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YszOU-0003rh-R3 for submit@debbugs.gnu.org; Thu, 14 May 2015 16:06:11 -0400 Original-Received: from fely.am-1.org ([78.47.74.50]:44551) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YszOS-0003rX-8p for 20385@debbugs.gnu.org; Thu, 14 May 2015 16:06:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=siamics.net; s=a2013295; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:Sender:References:Subject:To:From; bh=a3wuY5uO7/5hVShNe/lfE9SbX6ou6opvQahNl54JVac=; b=hKId8hsv31Jp6lR4+DBB5JAzgvRjmiRR8m1RNO78d2qcwiyOFXKEVz6pNJIaZE3JK8mQXRNJIM+/pIhuIavYHzgFSqjk6uS6f0uUNPrR6HgvtARGlLxan/VgW9wQJgfo8inQgLyM61+V8zx3X9WsYThefQrOggEsa6D6iMMCnv8=; Original-Received: from [2a02:2560:6d4:26ca::1:1d] (helo=violet.siamics.net) by fely.am-1.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1YszOO-00069b-2U; Thu, 14 May 2015 20:06:04 +0000 Original-Received: from localhost ([::1] helo=violet.siamics.net) by violet.siamics.net with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1YszOE-0001uN-98; Fri, 15 May 2015 03:05:54 +0700 Mail-Followup-To: 20385@debbugs.gnu.org, eggert@cs.ucla.edu, dgutov@yandex.ru In-Reply-To: <831tijjjjc.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 14 May 2015 17:55:19 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:102807 Archived-At: >>>>> Eli Zaretskii writes: >>>>> From: Ivan Shmakov Date: Thu, 14 May 2015 07:20:17 +0000 >> The ` character is not a quotation mark at all. In fact, it=E2=80=99s = the >> spacing variant of the very same diacritical mark as is shown above >> e in =C3=A8. > Any references for this? You mean, other than UnicodeData.txt and its derivatives? To quote NamesList.txt, for instance: 0060 GRAVE ACCENT * this is a spacing character x (modifier letter grave accent - 02CB) x (combining grave accent - 0300) x (reversed prime - 2035) 00B4 ACUTE ACCENT * this is a spacing character x (modifier letter prime - 02B9) x (modifier letter acute accent - 02CA) x (combining acute accent - 0301) x (prime - 2032) # 0020 0301 0300 COMBINING GRAVE ACCENT =3D Greek varia x (grave accent - 0060) x (modifier letter grave accent - 02CB) 0301 COMBINING ACUTE ACCENT =3D stress mark =3D Greek oxia, tonos x (apostrophe - 0027) x (acute accent - 00B4) x (modifier letter prime - 02B9) x (modifier letter acute accent - 02CA) x (greek tonos - 0384) I presume that if U+0060 was /not/ be meant to be a spacing grave accent =E2=80=93 there would be some other code point for that purpose, just like there /is/ such a code point (U+00B4) for a spacing /acute/ accent. Given that standards are intended to document existing practice, I=E2=80=99d expect Unicode to note that =E2=80=98`=E2=80=99 may be used as= a quotation mark in legacy applications. I=E2=80=99d be surprised to find it /recommending/ such use, though. Also, while I have no copy of USAS X3.4-1968 at hand, RFC 20 (which, AIUI, was intended to be a copy of it itself) has the following note: 6/0 ` Grave Accent [2, 3] (Opening Single Quotation Mark) [=E2=80=A6] 2 The use of the symbols in 2/2, 2/7, 2/12, 5/14, /6/0, and 7/14 as diacritical marks is described in Appendix A, A5.2 Alas, the appendices are not included in RFC 20. Still, ECMA-6 (which also names 6/0 GRAVE ACCENT) reads: B.2.3 Composite graphic characters and repertoire ECMA-6 permits the construction of composite graphic characters by using the control characters BACKSPACE and CARRIAGE RETURN to image two or more graphic characters at the same character position. --=20 FSF associate member #7257 http://am-1.org/~ivan/ =E2=80=A6 3013 B6A0= 230E 334A