From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Aidan Kehoe Newsgroups: gmane.emacs.devel Subject: Re: [PATCH] Unicode Lisp reader escapes Date: Fri, 5 May 2006 18:35:48 +0200 Message-ID: <17499.32484.864808.44046@parhasard.net> References: <17491.34779.959316.484740@parhasard.net> <87odyfnqcj.fsf-monnier+emacs@gnu.org> <17498.11949.75640.41779@parhasard.net> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1146846974 4811 80.91.229.2 (5 May 2006 16:36:14 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 5 May 2006 16:36:14 +0000 (UTC) Cc: rms@gnu.org, emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri May 05 18:36:11 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1Fc3Hj-0007hK-3N for ged-emacs-devel@m.gmane.org; Fri, 05 May 2006 18:36:07 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Fc3Hi-0002zn-K7 for ged-emacs-devel@m.gmane.org; Fri, 05 May 2006 12:36:06 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Fc3HW-0002xv-8z for emacs-devel@gnu.org; Fri, 05 May 2006 12:35:54 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Fc3HU-0002wn-RK for emacs-devel@gnu.org; Fri, 05 May 2006 12:35:53 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Fc3HU-0002wj-NS for emacs-devel@gnu.org; Fri, 05 May 2006 12:35:52 -0400 Original-Received: from [66.111.49.30] (helo=icarus.asclepian.ie) by monty-python.gnu.org with esmtp (Exim 4.52) id 1Fc3Hd-0005W2-QH; Fri, 05 May 2006 12:36:01 -0400 Original-Received: by icarus.asclepian.ie (Postfix, from userid 1003) id EE8188008D; Fri, 5 May 2006 17:35:48 +0100 (IST) Original-To: Eli Zaretskii In-Reply-To: X-Mailer: VM 7.17 under 21.5 (beta25) "eggplant" (+CVS-20060325) XEmacs Lucid X-Echelon-distraction: smuggle submiss 414 SNT CDC explicit X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:53957 Archived-At: Ar an c=FAigi=FA l=E1 de m=ED Bealtaine, scr=EDobh Eli Zaretskii:=20 > > > I think one relevant question is to what extent the C and Emacs L= isp > > > string syntax are compatible in the first place. Emacs Lisp strin= g > > > syntax was largely based on C string syntax in 1984, but I don't > > > know how C has developed since 1990. Can someone report on this > > > question? > >=20 > > The \u syntax (with a fixed number of digits) came into wide use wit= h > > Java in 1996. The necessity for the \U extension arose with progress > > towards version 3.0 of Unicode and its ~1.1 million available code > > points. That version of the standard was released in 1999; the C99 I= SO > > standard for C of the same year included both \u and \U. Various oth= er > > C-oriented programming languages have incorporated the syntax since. >=20 > I think Richard was asking for a simple summary of the current C > string syntax, with special emphasis on the standard escapes. \u and > \U are only part of the story. Well, I read it as him asking how C has developed since 1990 in its strin= g syntax, and \u and \U are most of that story. Your parse is more reasonab= le; the question is not clear, though.=20 --=20 Aidan Kehoe, http://www.parhasard.net/