From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.devel Subject: Re: The Emacs Calculator and calendar Date: Tue, 09 Oct 2012 23:37:35 -0400 Message-ID: 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: rms@gnu.org NNTP-Posting-Host: plane.gmane.org Content-Type: text/plain; charset=ISO-8859-15 X-Trace: ger.gmane.org 1349840263 10664 80.91.229.3 (10 Oct 2012 03:37:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 10 Oct 2012 03:37:43 +0000 (UTC) Cc: emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Oct 10 05:37:48 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 1TLn7D-00019K-HK for ged-emacs-devel@m.gmane.org; Wed, 10 Oct 2012 05:37:47 +0200 Original-Received: from localhost ([::1]:37641 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLn77-0006VH-1i for ged-emacs-devel@m.gmane.org; Tue, 09 Oct 2012 23:37:41 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:60054) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLn73-0006V6-Os for emacs-devel@gnu.org; Tue, 09 Oct 2012 23:37:39 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TLn72-0001xc-PD for emacs-devel@gnu.org; Tue, 09 Oct 2012 23:37:37 -0400 Original-Received: from fencepost.gnu.org ([208.118.235.10]:37790) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLn72-0001xQ-LC for emacs-devel@gnu.org; Tue, 09 Oct 2012 23:37:36 -0400 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1TLn71-0002Yl-9f; Tue, 09 Oct 2012 23:37:35 -0400 In-reply-to: <5074AEEC.1010900@cs.ucla.edu> (message from Paul Eggert on Tue, 09 Oct 2012 16:10:36 -0700) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 208.118.235.10 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:154267 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. This is not the only case I am concerned with. Using the Julian calendar with years starting with some other date is also a possibility we might want to handle. It is just a matter of what is useful. "For the purposes of this book, all dates are given using the modern Gregorian calendar unless specifically followed by the O.S. designation." This book doesn't need such support. That doesn't say anything about the issue, though. "In this book Continental dates in the period 1582-1752 can generally be assumed to be given according to the Gregorian system, and British (and American) dates of the period according to the Julian system, but with the year in all cases deemed to begin on 1 January, not 25 March. The very feature you discuss (quoted above) could be useful for this book. -- Dr Richard Stallman President, Free Software Foundation 51 Franklin St Boston MA 02110 USA www.fsf.org www.gnu.org Skype: No way! That's nonfree (freedom-denying) software. Use Ekiga or an ordinary phone call