From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Upcoming loss of usability of Emacs source files and Emacs. Date: Wed, 17 Jun 2015 09:03:31 -0400 Message-ID: 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> 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 1434546254 18519 80.91.229.3 (17 Jun 2015 13:04:14 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 17 Jun 2015 13:04:14 +0000 (UTC) Cc: acm@muc.de, stephen@xemacs.org, rms@gnu.org, emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jun 17 15:04:05 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 1Z5D0a-0008Va-N3 for ged-emacs-devel@m.gmane.org; Wed, 17 Jun 2015 15:04:00 +0200 Original-Received: from localhost ([::1]:46712 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5D0V-0008WH-0v for ged-emacs-devel@m.gmane.org; Wed, 17 Jun 2015 09:03:55 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34295) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5D0D-0008V0-Ff for emacs-devel@gnu.org; Wed, 17 Jun 2015 09:03:41 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z5D09-0003Hc-3g for emacs-devel@gnu.org; Wed, 17 Jun 2015 09:03:37 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:58417) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5D09-0003H5-0q; Wed, 17 Jun 2015 09:03:33 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0AxEwA731xV/1enxEVcDoMChAJOhQe7NwmHSwQCAoE8ORQBAQEBAQEBgQpBBYNdAQEEIzMjEAsaAhgOAgIUGA0kiD+rDKQXAQEIAgEfgSGKGYRSMweCaIFFBbM/gUUjgzpaIoJ4AQEB X-IPAS-Result: A0AxEwA731xV/1enxEVcDoMChAJOhQe7NwmHSwQCAoE8ORQBAQEBAQEBgQpBBYNdAQEEIzMjEAsaAhgOAgIUGA0kiD+rDKQXAQEIAgEfgSGKGYRSMweCaIFFBbM/gUUjgzpaIoJ4AQEB X-IronPort-AV: E=Sophos;i="5.13,465,1427774400"; d="scan'208";a="127012466" Original-Received: from 69-196-167-87.dsl.teksavvy.com (HELO ceviche.home) ([69.196.167.87]) by ironport2-out.teksavvy.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 17 Jun 2015 09:03:33 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id E37DD6614A; Wed, 17 Jun 2015 09:03:31 -0400 (EDT) In-Reply-To: <87si9qonxb.fsf@gnu.org> (Tassilo Horn's message of "Wed, 17 Jun 2015 08:21:20 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 206.248.154.181 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:187242 Archived-At: > [1] But I agree with Drew that the `...' in `foo-bar' isn't quoting but > a markup which unambiguously says "foo-bar is a symbol." In > contrast, =E2=80=98foo-bar=E2=80=99 is ambiguous. It could be a quot= e or a symbol. > Well, of course there aren't too many quotes in lisp files so this > problem probably isn't too relevant in practice. As you noticed, indeed, =E2=80=98foo-bar=E2=80=99 can be ambiguous, but `fo= o-bar' can *also* be ambiguous. Actually, there are many more uses of quotes and backtits in Elisp docstrings and comments which are not used for markup, then there are of =E2=80=98 and =E2=80=99. To me, one of the motivations for the change (after the visual aspect) is to have a *more* robust handling because it is *less* ambiguous (within the context of Elisp). Stefan