From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Jay Belanger Newsgroups: gmane.emacs.devel Subject: Re: The Emacs Calculator and calendar Date: Tue, 09 Oct 2012 21:22:10 -0500 Message-ID: <87txu3m5gt.fsf@gmail.com> References: <87y5jk3f7d.fsf@gmail.com> <87626md8aj.fsf@Rainer.invalid> <83vcem6592.fsf@gnu.org> <5071E6E7.7080906@cs.ucla.edu> <50732AD7.8000003@cs.ucla.edu> <5073C3F6.40606@cs.ucla.edu> <5074AEEC.1010900@cs.ucla.edu> Reply-To: jay.p.belanger@gmail.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1349835746 12120 80.91.229.3 (10 Oct 2012 02:22:26 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 10 Oct 2012 02:22:26 +0000 (UTC) Cc: jay.p.belanger@gmail.com To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Oct 10 04:22:33 2012 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 1TLlwK-0000QJ-R7 for ged-emacs-devel@m.gmane.org; Wed, 10 Oct 2012 04:22:28 +0200 Original-Received: from localhost ([::1]:32889 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLlwE-0006oU-GO for ged-emacs-devel@m.gmane.org; Tue, 09 Oct 2012 22:22:22 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:60907) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLlwB-0006oP-Jn for emacs-devel@gnu.org; Tue, 09 Oct 2012 22:22:20 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TLlwA-0002d5-K2 for emacs-devel@gnu.org; Tue, 09 Oct 2012 22:22:19 -0400 Original-Received: from mail-ob0-f169.google.com ([209.85.214.169]:59539) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLlwA-0002cz-E1 for emacs-devel@gnu.org; Tue, 09 Oct 2012 22:22:18 -0400 Original-Received: by mail-ob0-f169.google.com with SMTP id va7so30492obc.0 for ; Tue, 09 Oct 2012 19:22:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:subject:references:reply-to:cc:date:in-reply-to:message-id :user-agent:mime-version:content-type; bh=iZcpxwllBccFr850NnXbYo30KNFvH9tfBrcVI6NxutM=; b=Pqcr9iH9qn31wk2s5ydcCHmRz436UK6EdPSSscPGrRa52tt7m1sR+mAHJfjj5yvzhg yZ5lbeyz4Rbjyw/GlnBv4JPQ5C761YHfSYpZ3xEe9Ej12lrG5WyaV8cUYsbKpjdDVIVQ eLr03jjBu9zzIQIshhOUtlDP9j1DOxsGksirTChqsTQf4CYlU0Mhu2j14KpeDzv2sD/p 50lCULm20N7z1hQttx+MWp6RSaLKUk9ABenrJj6soo2x6glo+86yM2tljaMYtX/X2BQW MJPJOYGvm77X/n37tL8Hd+nVw2Qod7/8ji/UrRLbziqsLxXeK0DISOzTGEz94OQu3Aa+ HYSA== Original-Received: by 10.60.171.199 with SMTP id aw7mr7211137oec.54.1349835737319; Tue, 09 Oct 2012 19:22:17 -0700 (PDT) Original-Received: from belanger-home (184-155-88-117.cpe.cableone.net. [184.155.88.117]) by mx.google.com with ESMTPS id c1sm36078oee.10.2012.10.09.19.22.15 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 09 Oct 2012 19:22:16 -0700 (PDT) In-Reply-To: <5074AEEC.1010900@cs.ucla.edu> (Paul Eggert's message of "Tue, 09 Oct 2012 16:10:36 -0700") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.85.214.169 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:154266 Archived-At: > Good point. So, as I understand it, the case you're worried > about is a source where the author's practice is something > like the following: > > This book uses the Gregorian calendar for dates from 14 > September 1752 onwards, and the Julian calendar starting > on January 1 for dates before that. The calendar is not > otherwise indicated. > > No doubt some books exist like that, but in my experience > the following sorts of rules are more typical: > > "For the purposes of this book, all dates are given using > the modern Gregorian calendar unless specifically > followed by the O.S. designation." > -- David Marley, Wars of the Americas, ABC-CLIO (2008), > page xiii. As much as there is one, the consensus in this discussion seems to be that the pure Gregorian calendar should be the default, but the user should be able to explicitly ask for something else (from a choice of other options and, perhaps, some more general settings could be available). Which makes your typical situation the default and the "no doubt ... exist" situation an option that the user can explicitly ask for. I'll make sure that something like that is in Calc after the next Emacs release. (Note that Isaac Newton's birthday is December 25 in the Julian calendar, so some sort of hybrid calendar would be desirable for those who want Grav-mass to be that date.:)