;;;;
;;;; CALENDRICA 4.0 -- Common Lisp
;;;; E. M. Reingold and N. Dershowitz
;;;;
;;;; ================================================================
;;;;
;;;; The Functions (code, comments, and definitions) contained in this
;;;; file (the "Program") were written by Edward M. Reingold and Nachum
;;;; Dershowitz (the "Authors"), who retain all rights to them except as
;;;; granted in the License and subject to the warranty and liability
;;;; limitations below.  These Functions are explained in the Authors'
;;;; book, "Calendrical Calculations", 4th ed. (Cambridge University
;;;; Press, 2016), and are subject to an international copyright.
;;;;
;;;; The Authors' public service intent is more liberal than suggested
;;;; by the License below, as are their licensing policies for otherwise
;;;; nonallowed uses such as--without limitation--those in commercial,
;;;; web-site, and large-scale academic contexts.  Please see the
;;;; web-site
;;;;
;;;;     http://www.calendarists.com
;;;;
;;;; for all uses not authorized below; in case there is cause for doubt
;;;; about whether a use you contemplate is authorized, please contact
;;;; the Authors (e-mail: reingold@iit.edu).  For commercial licensing
;;;; information, contact the first author at the Department of Computer
;;;; Science, Illinois Institute of Technology, Chicago, IL 60616-3729 USA.
;;;;
;;;; 1. LICENSE.  The Authors grant you a license for personal use.
;;;; This means that for strictly personal use you may copy and use the
;;;; code, and keep a backup or archival copy also.  The Authors grant you a
;;;; license for re-use within non-commercial, non-profit software provided
;;;; prominent credit is given and the Authors' rights are preserved.  Any
;;;; other uses, including without limitation, allowing the code or its
;;;; output to be accessed, used, or available to others, is not permitted.
;;;;
;;;; 2. WARRANTY.
;;;;
;;;; (a) THE AUTHORS PROVIDE NO WARRANTIES OF ANY KIND, EITHER
;;;;     EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITING THE
;;;;     GENERALITY OF THE FOREGOING, ANY IMPLIED WARRANTY OF
;;;;     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
;;;;
;;;; (b) THE AUTHORS SHALL NOT BE LIABLE TO YOU OR ANY THIRD PARTIES
;;;;     FOR DAMAGES OF ANY KIND, INCLUDING WITHOUT LIMITATION, ANY LOST
;;;;     PROFITS, LOST SAVINGS, OR ANY OTHER INCIDENTAL OR CONSEQUENTIAL
;;;;     DAMAGES ARISING OUT OF OR RELATED TO THE USE, INABILITY TO USE,
;;;;     OR INACCURACY OF CALCULATIONS, OF THE CODE AND FUNCTIONS
;;;;     CONTAINED HEREIN, OR THE BREACH OF ANY EXPRESS OR IMPLIED
;;;;     WARRANTY, EVEN IF THE AUTHORS OR PUBLISHER HAVE BEEN ADVISED OF
;;;;     THE POSSIBILITY OF THOSE DAMAGES.
;;;;
;;;; (c) THE FOREGOING WARRANTY MAY GIVE YOU SPECIFIC LEGAL
;;;;     RIGHTS WHICH MAY VARY FROM STATE TO STATE IN THE U.S.A.
;;;;
;;;; 3. LIMITATION OF LICENSEE REMEDIES.  You acknowledge and agree that
;;;; your exclusive remedy (in law or in equity), and Authors' entire
;;;; liability with respect to the material herein, for any breach of
;;;; representation or for any inaccuracy shall be a refund of the license
;;;; fee or service and handling charge which you paid the Authors, if any.
;;;;
;;;; SOME STATES IN THE U.S.A. DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
;;;; LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE
;;;; EXCLUSIONS OR LIMITATION MAY NOT APPLY TO YOU.
;;;;
;;;; 4. DISCLAIMER.  Except as expressly set forth above, the Authors:
;;;;
;;;;   (a) make no other warranties with respect to the material in the
;;;;   Program and expressly disclaim any others;
;;;;
;;;;   (b) do not warrant that the material contained in the Program will
;;;;   meet your requirements or that their operation shall be
;;;;   uninterrupted or error-free;
;;;;
;;;;   (c) license this material on an "as is" basis, and the entire risk
;;;;   as to the quality, accuracy, and performance of the Program is
;;;;   yours, should the code prove defective (except as expressly
;;;;   warranted herein).  You alone assume the entire cost of all
;;;;   necessary corrections.
;;;;
;;;; Sample values for the functions (useful for debugging) are given in
;;;; Appendix C of the book.

;;;; Last modified 20 December 2016.