[bpt/emacs.git] / lisp / calendar / lunar.el

;;; lunar.el --- calendar functions for phases of the moon.

;; Copyright (C) 1992 Free Software Foundation, Inc.

;; Author: Edward M. Reingold <reingold@cs.uiuc.edu>
;; Keywords: moon, lunar phases, calendar, diary

;; This file is part of GNU Emacs.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY.  No author or distributor
;; accepts responsibility to anyone for the consequences of using it
;; or for whether it serves any particular purpose or works at all,
;; unless he says so in writing.  Refer to the GNU Emacs General Public
;; License for full details.

;; Everyone is granted permission to copy, modify and redistribute
;; GNU Emacs, but only under the conditions described in the
;; GNU Emacs General Public License.   A copy of this license is
;; supposed to have been given to you along with GNU Emacs so you
;; can know your rights and responsibilities.  It should be in a
;; file named COPYING.  Among other things, the copyright notice
;; and this notice must be preserved on all copies.

;;; Commentary:

;; This collection of functions implements lunar phases for calendar.el and
;; diary.el.

;; Based on ``Astronomical Formulae for Calculators,'' 3rd ed., by Jean Meeus,
;; Willmann-Bell, Inc., 1985.
;;
;; WARNING: The calculations will be accurate only to within a few minutes.

;; The author would be delighted to have an astronomically more sophisticated
;; person rewrite the code for the lunar calculations in this file!

;; Comments, corrections, and improvements should be sent to
;;  Edward M. Reingold               Department of Computer Science
;;  (217) 333-6733                   University of Illinois at Urbana-Champaign
;;  reingold@cs.uiuc.edu             1304 West Springfield Avenue
;;                                   Urbana, Illinois 61801

;;; Code:

(if (fboundp 'atan)
    (require 'lisp-float-type)
  (error "Lunar calculations impossible since floating point is unavailable."))

(require 'solar)

(defun lunar-phase-list (month year)
  "List of lunar phases for three months starting with Gregorian MONTH, YEAR."
  (let ((end-month month)
        (end-year year)
        (start-month month)
        (start-year year))
    (increment-calendar-month end-month end-year 3)
    (increment-calendar-month start-month start-year -1)
    (let* ((end-date (list (list end-month 1 end-year)))
           (start-date (list (list start-month 
                                   (calendar-last-day-of-month
                                    start-month start-year)
                                   start-year)))
           (index (* 4
                     (truncate
                      (* 12.3685
                         (+ year
                            ( / (calendar-day-number (list month 1 year))
                                366.0)
                            -1900)))))
           (new-moon (lunar-phase index))
           (list))
      (while (calendar-date-compare new-moon end-date)
        (if (calendar-date-compare start-date new-moon)
            (setq list (append list (list new-moon))))
        (setq index (1+ index))
        (setq new-moon (lunar-phase index)))
      list)))

(defun lunar-phase (index)
  "Local date and time of lunar phase INDEX.
Integer below INDEX/4 gives the lunation number, counting from Jan 1, 1900;
remainder mod 4 gives the phase: 0 new moon, 1 first quarter, 2 full moon,
3 last quarter."
  (let* ((phase (% index 4))
         (index (/ index 4.0))
         (time (/ index 1236.85))
         (date (+ (calendar-absolute-from-gregorian '(1 0.5 1900))
                  0.75933
                  (* 29.53058868 index)
                  (* 0.0001178 time time)
                  (* -0.000000155 time time time)
                  (* 0.00033
                     (solar-sin-degrees (+ 166.56
                                           (* 132.87 time)
                                           (* -0.009173 time time))))))
         (sun-anomaly (solar-mod
                       (+ 359.2242
                          (* 29.105356 index)
                          (* -0.0000333 time time)
                          (* -0.00000347 time time time))
                       360.0))
         (moon-anomaly (solar-mod
                        (+ 306.0253
                           (* 385.81691806 index)
                           (* 0.0107306 time time)
                           (* 0.00001236 time time time))
                        360.0))
         (moon-lat (solar-mod
                    (+ 21.2964
                       (* 390.67050646 index)
                       (* -0.0016528 time time)
                       (* -0.00000239 time time time))
                    360.0))
         (adjustment
          (if (memq phase '(0 2))
              (+ (* (- 0.1734 (* 0.000393 time))
                    (solar-sin-degrees sun-anomaly))
                 (* 0.0021 (solar-sin-degrees (* 2 sun-anomaly)))
                 (* -0.4068 (solar-sin-degrees moon-anomaly))
                 (* 0.0161 (solar-sin-degrees (* 2 moon-anomaly)))
                 (* -0.0004 (solar-sin-degrees (* 3 moon-anomaly)))
                 (* 0.0104 (solar-sin-degrees (* 2 moon-lat)))
                 (* -0.0051 (solar-sin-degrees (+ sun-anomaly moon-anomaly)))
                 (* -0.0074 (solar-sin-degrees (- sun-anomaly moon-anomaly)))
                 (* 0.0004 (solar-sin-degrees (+ (* 2 moon-lat) sun-anomaly)))
                 (* -0.0004 (solar-sin-degrees (- (* 2 moon-lat) sun-anomaly)))
                 (* -0.0006 (solar-sin-degrees
                             (+ (* 2 moon-lat) moon-anomaly)))
                 (* 0.0010 (solar-sin-degrees (- (* 2 moon-lat) moon-anomaly)))
                 (* 0.0005 (solar-sin-degrees
                            (+ (* 2 moon-anomaly) sun-anomaly))))
            (+ (* (- 0.1721 (* 0.0004 time))
                  (solar-sin-degrees sun-anomaly))
               (* 0.0021 (solar-sin-degrees (* 2 sun-anomaly)))
               (* -0.6280 (solar-sin-degrees moon-anomaly))
               (* 0.0089 (solar-sin-degrees (* 2 moon-anomaly)))
               (* -0.0004 (solar-sin-degrees (* 3 moon-anomaly)))
               (* 0.0079 (solar-sin-degrees (* 2 moon-lat)))
               (* -0.0119 (solar-sin-degrees (+ sun-anomaly moon-anomaly)))
               (* -0.0047 (solar-sin-degrees (- sun-anomaly moon-anomaly)))
               (* 0.0003 (solar-sin-degrees (+ (* 2 moon-lat) sun-anomaly)))
               (* -0.0004 (solar-sin-degrees (- (* 2 moon-lat) sun-anomaly)))
               (* -0.0006 (solar-sin-degrees (+ (* 2 moon-lat) moon-anomaly)))
               (* 0.0021 (solar-sin-degrees (- (* 2 moon-lat) moon-anomaly)))
               (* 0.0003 (solar-sin-degrees
                          (+ (* 2 moon-anomaly) sun-anomaly)))
               (* 0.0004 (solar-sin-degrees
                          (- sun-anomaly (* 2 moon-anomaly))))
               (* -0.0003 (solar-sin-degrees
                          (+ (* 2 sun-anomaly) moon-anomaly))))))
         (adj (+ 0.0028
                 (* -0.0004 (solar-cosine-degrees
                             sun-anomaly))
                 (* 0.0003 (solar-cosine-degrees
                            moon-anomaly))))
         (adjustment (cond ((= phase 1) (+ adjustment adj))
                           ((= phase 2) (- adjustment adj))
                           (t adjustment)))
         (date (+ date adjustment))
         (calendar-standard-time-zone-name
          (if calendar-time-zone calendar-standard-time-zone-name "UT"))
         (calendar-daylight-savings-starts
          (if calendar-time-zone calendar-daylight-savings-starts))
         (calendar-daylight-savings-ends
          (if calendar-time-zone calendar-daylight-savings-ends))
         (calendar-time-zone (if calendar-time-zone calendar-time-zone 0))
	 (year (extract-calendar-year
                (calendar-gregorian-from-absolute (truncate date))))
	 (dst (and calendar-daylight-savings-starts
		   calendar-daylight-savings-ends
		   (<= (calendar-absolute-from-gregorian
			(eval calendar-daylight-savings-starts))
		       date)
		   (< date
		      (calendar-absolute-from-gregorian
		       (eval calendar-daylight-savings-ends)))))
	 (date (+ date 
                  (/ (+ (if dst 60 0) calendar-time-zone) 60.0 24.0)
                  (- (/ (solar-ephemeris-correction year) 60.0 24.0))))
         (time (* 24 (- date (truncate date))))
         (date (calendar-gregorian-from-absolute (truncate date)))
         (time-zone calendar-time-zone)
	 (time-zone (if dst
			calendar-daylight-time-zone-name
			calendar-standard-time-zone-name))
	 (24-hours (truncate time))
	 (12-hours (format "%d" (if (> 24-hours 12)
				    (- 24-hours 12)
				  (if (= 24-hours 0) 12 24-hours))))
	 (am-pm (if (>= 24-hours 12) "pm" "am"))
	 (minutes (format "%02d" (round (* 60 (- time 24-hours)))))
	 (24-hours (format "%02d" 24-hours))
         (time (mapconcat 'eval calendar-time-display-form "")))
    (list date time phase)))

(defun lunar-phase-name (phase)
  "Name of lunar PHASE.
0 = new moon, 1 = first quarter, 2 = full moon, 3 = last quarter."
  (cond ((= 0 phase) "New Moon")
        ((= 1 phase) "First Quarter Moon")
        ((= 2 phase) "Full Moon")
        ((= 3 phase) "Last Quarter Moon")))

(defun calendar-phases-of-moon ()
  "Create a buffer with the lunar phases for the current calendar window."
  (interactive)
  (message "Computing phases of the moon...")
  (let ((m1 displayed-month)
        (y1 displayed-year)
        (m2 displayed-month)
        (y2 displayed-year)
        (lunar-phases-buffer "*Phases of Moon*"))
    (increment-calendar-month m1 y1 -1)
    (increment-calendar-month m2 y2 1)
    (set-buffer (get-buffer-create lunar-phases-buffer))
    (setq buffer-read-only nil)
    (calendar-set-mode-line
          (format "Phases of the moon from %s, %d to %s, %d%%-"
                  (calendar-month-name m1) y1 (calendar-month-name m2) y2))
    (erase-buffer)
    (insert
     (mapconcat
      '(lambda (x)
         (let ((date (car x))
               (time (car (cdr x)))
               (phase (car (cdr (cdr x)))))
           (concat (calendar-date-string date)
                   ": "
                   (lunar-phase-name phase)
                   " "
                   time)))
      (lunar-phase-list m1 y1) "\n"))
    (goto-char (point-min))
    (set-buffer-modified-p nil)
    (setq buffer-read-only t)
    (display-buffer lunar-phases-buffer)
    (message "Computing phases of the moon...done")))

;;;###autoload
(defun phases-of-moon (&optional arg)
  "Display the quarters of the moon for last month, this month, and next month.
If called with an optional prefix argument, prompts for month and year.

This function is suitable for execution in a .emacs file."
  (interactive "P")
  (save-excursion
    (let* ((completion-ignore-case t)
           (date (calendar-current-date))
           (displayed-month
            (if arg
                (cdr (assoc
                      (capitalize
                       (completing-read
                        "Month name: "
                        (mapcar 'list (append calendar-month-name-array nil))
                        nil t))
                      (calendar-make-alist calendar-month-name-array)))
              (extract-calendar-month date)))
           (displayed-year
            (if arg
                (calendar-read
                 "Year (>0): "
                 '(lambda (x) (> x 0))
                 (int-to-string
                  (extract-calendar-year (calendar-current-date))))
              (extract-calendar-year date))))
      (calendar-phases-of-moon))))

(defun diary-phases-of-moon ()
  "Moon phases diary entry."
  (let* ((index (* 4
                   (truncate
                    (* 12.3685
                       (+ (extract-calendar-year date)
                          ( / (calendar-day-number date)
                              366.0)
                          -1900)))))
         (phase (lunar-phase index)))
    (while (calendar-date-compare phase (list date))
      (setq index (1+ index))
      (setq phase (lunar-phase index)))
    (if (calendar-date-equal (car phase) date)
        (concat (lunar-phase-name (car (cdr (cdr phase)))) " "
                (car (cdr phase))))))

(provide 'lunar)

;;; lunar.el ends here
Commit	Line	Data
7e1dae73 JB	1	;;; lunar.el --- calendar functions for phases of the moon.
	2
	3	;; Copyright (C) 1992 Free Software Foundation, Inc.
	4
	5	;; Author: Edward M. Reingold <reingold@cs.uiuc.edu>
	6	;; Keywords: moon, lunar phases, calendar, diary
	7
	8	;; This file is part of GNU Emacs.
	9
	10	;; GNU Emacs is distributed in the hope that it will be useful,
	11	;; but WITHOUT ANY WARRANTY. No author or distributor
	12	;; accepts responsibility to anyone for the consequences of using it
	13	;; or for whether it serves any particular purpose or works at all,
	14	;; unless he says so in writing. Refer to the GNU Emacs General Public
	15	;; License for full details.
	16
	17	;; Everyone is granted permission to copy, modify and redistribute
	18	;; GNU Emacs, but only under the conditions described in the
	19	;; GNU Emacs General Public License. A copy of this license is
	20	;; supposed to have been given to you along with GNU Emacs so you
	21	;; can know your rights and responsibilities. It should be in a
	22	;; file named COPYING. Among other things, the copyright notice
	23	;; and this notice must be preserved on all copies.
	24
	25	;;; Commentary:
	26
	27	;; This collection of functions implements lunar phases for calendar.el and
	28	;; diary.el.
	29
	30	;; Based on ``Astronomical Formulae for Calculators,'' 3rd ed., by Jean Meeus,
	31	;; Willmann-Bell, Inc., 1985.
	32	;;
	33	;; WARNING: The calculations will be accurate only to within a few minutes.
	34
	35	;; The author would be delighted to have an astronomically more sophisticated
	36	;; person rewrite the code for the lunar calculations in this file!
	37
	38	;; Comments, corrections, and improvements should be sent to
	39	;; Edward M. Reingold Department of Computer Science
	40	;; (217) 333-6733 University of Illinois at Urbana-Champaign
	41	;; reingold@cs.uiuc.edu 1304 West Springfield Avenue
	42	;; Urbana, Illinois 61801
	43
	44	;;; Code:
	45
	46	(if (fboundp 'atan)
	47	(require 'lisp-float-type)
	48	(error "Lunar calculations impossible since floating point is unavailable."))
	49
	50	(require 'solar)
	51
	52	(defun lunar-phase-list (month year)
	53	"List of lunar phases for three months starting with Gregorian MONTH, YEAR."
	54	(let ((end-month month)
	55	(end-year year)
	56	(start-month month)
	57	(start-year year))
	58	(increment-calendar-month end-month end-year 3)
	59	(increment-calendar-month start-month start-year -1)
	60	(let* ((end-date (list (list end-month 1 end-year)))
	61	(start-date (list (list start-month
	62	(calendar-last-day-of-month
	63	start-month start-year)
	64	start-year)))
65	(index (* 4
66	(truncate
67	(* 12.3685
68	(+ year
69	( / (calendar-day-number (list month 1 year))
70	366.0)
71	-1900)))))
72	(new-moon (lunar-phase index))
73	(list))
74	(while (calendar-date-compare new-moon end-date)
75	(if (calendar-date-compare start-date new-moon)
76	(setq list (append list (list new-moon))))
77	(setq index (1+ index))
78	(setq new-moon (lunar-phase index)))
79	list)))
80
81	(defun lunar-phase (index)
82	"Local date and time of lunar phase INDEX.
83	Integer below INDEX/4 gives the lunation number, counting from Jan 1, 1900;
84	remainder mod 4 gives the phase: 0 new moon, 1 first quarter, 2 full moon,
85	3 last quarter."
86	(let* ((phase (% index 4))
87	(index (/ index 4.0))
88	(time (/ index 1236.85))
89	(date (+ (calendar-absolute-from-gregorian '(1 0.5 1900))
90	0.75933
91	(* 29.53058868 index)
92	(* 0.0001178 time time)
93	(* -0.000000155 time time time)
94	(* 0.00033
95	(solar-sin-degrees (+ 166.56
96	(* 132.87 time)
97	(* -0.009173 time time))))))
98	(sun-anomaly (solar-mod
99	(+ 359.2242
100	(* 29.105356 index)
101	(* -0.0000333 time time)
102	(* -0.00000347 time time time))
103	360.0))
104	(moon-anomaly (solar-mod
105	(+ 306.0253
106	(* 385.81691806 index)
107	(* 0.0107306 time time)
108	(* 0.00001236 time time time))
109	360.0))
110	(moon-lat (solar-mod
111	(+ 21.2964
112	(* 390.67050646 index)
113	(* -0.0016528 time time)
114	(* -0.00000239 time time time))
115	360.0))
116	(adjustment
117	(if (memq phase '(0 2))
118	(+ (* (- 0.1734 (* 0.000393 time))
119	(solar-sin-degrees sun-anomaly))
120	(* 0.0021 (solar-sin-degrees (* 2 sun-anomaly)))
121	(* -0.4068 (solar-sin-degrees moon-anomaly))
122	(* 0.0161 (solar-sin-degrees (* 2 moon-anomaly)))
123	(* -0.0004 (solar-sin-degrees (* 3 moon-anomaly)))
124	(* 0.0104 (solar-sin-degrees (* 2 moon-lat)))
125	(* -0.0051 (solar-sin-degrees (+ sun-anomaly moon-anomaly)))
126	(* -0.0074 (solar-sin-degrees (- sun-anomaly moon-anomaly)))
127	(* 0.0004 (solar-sin-degrees (+ (* 2 moon-lat) sun-anomaly)))
128	(* -0.0004 (solar-sin-degrees (- (* 2 moon-lat) sun-anomaly)))
129	(* -0.0006 (solar-sin-degrees
130	(+ (* 2 moon-lat) moon-anomaly)))
131	(* 0.0010 (solar-sin-degrees (- (* 2 moon-lat) moon-anomaly)))
132	(* 0.0005 (solar-sin-degrees
133	(+ (* 2 moon-anomaly) sun-anomaly))))
134	(+ (* (- 0.1721 (* 0.0004 time))
135	(solar-sin-degrees sun-anomaly))
136	(* 0.0021 (solar-sin-degrees (* 2 sun-anomaly)))
137	(* -0.6280 (solar-sin-degrees moon-anomaly))
138	(* 0.0089 (solar-sin-degrees (* 2 moon-anomaly)))
139	(* -0.0004 (solar-sin-degrees (* 3 moon-anomaly)))
140	(* 0.0079 (solar-sin-degrees (* 2 moon-lat)))
141	(* -0.0119 (solar-sin-degrees (+ sun-anomaly moon-anomaly)))
142	(* -0.0047 (solar-sin-degrees (- sun-anomaly moon-anomaly)))
143	(* 0.0003 (solar-sin-degrees (+ (* 2 moon-lat) sun-anomaly)))
144	(* -0.0004 (solar-sin-degrees (- (* 2 moon-lat) sun-anomaly)))
145	(* -0.0006 (solar-sin-degrees (+ (* 2 moon-lat) moon-anomaly)))
146	(* 0.0021 (solar-sin-degrees (- (* 2 moon-lat) moon-anomaly)))
147	(* 0.0003 (solar-sin-degrees
148	(+ (* 2 moon-anomaly) sun-anomaly)))
149	(* 0.0004 (solar-sin-degrees
150	(- sun-anomaly (* 2 moon-anomaly))))
151	(* -0.0003 (solar-sin-degrees
152	(+ (* 2 sun-anomaly) moon-anomaly))))))
153	(adj (+ 0.0028
154	(* -0.0004 (solar-cosine-degrees
155	sun-anomaly))
156	(* 0.0003 (solar-cosine-degrees
157	moon-anomaly))))
158	(adjustment (cond ((= phase 1) (+ adjustment adj))
159	((= phase 2) (- adjustment adj))
160	(t adjustment)))
161	(date (+ date adjustment))
162	(calendar-standard-time-zone-name
163	(if calendar-time-zone calendar-standard-time-zone-name "UT"))
164	(calendar-daylight-savings-starts
165	(if calendar-time-zone calendar-daylight-savings-starts))
166	(calendar-daylight-savings-ends
167	(if calendar-time-zone calendar-daylight-savings-ends))
168	(calendar-time-zone (if calendar-time-zone calendar-time-zone 0))
169	(year (extract-calendar-year
170	(calendar-gregorian-from-absolute (truncate date))))
171	(dst (and calendar-daylight-savings-starts
172	calendar-daylight-savings-ends
173	(<= (calendar-absolute-from-gregorian
174	(eval calendar-daylight-savings-starts))
175	date)
176	(< date
177	(calendar-absolute-from-gregorian
178	(eval calendar-daylight-savings-ends)))))
179	(date (+ date
180	(/ (+ (if dst 60 0) calendar-time-zone) 60.0 24.0)
181	(- (/ (solar-ephemeris-correction year) 60.0 24.0))))
182	(time (* 24 (- date (truncate date))))
183	(date (calendar-gregorian-from-absolute (truncate date)))
184	(time-zone calendar-time-zone)
185	(time-zone (if dst
186	calendar-daylight-time-zone-name
187	calendar-standard-time-zone-name))
188	(24-hours (truncate time))
189	(12-hours (format "%d" (if (> 24-hours 12)
190	(- 24-hours 12)
191	(if (= 24-hours 0) 12 24-hours))))
192	(am-pm (if (>= 24-hours 12) "pm" "am"))
193	(minutes (format "%02d" (round (* 60 (- time 24-hours)))))
194	(24-hours (format "%02d" 24-hours))
195	(time (mapconcat 'eval calendar-time-display-form "")))
196	(list date time phase)))
197
198	(defun lunar-phase-name (phase)
199	"Name of lunar PHASE.
200	0 = new moon, 1 = first quarter, 2 = full moon, 3 = last quarter."
201	(cond ((= 0 phase) "New Moon")
202	((= 1 phase) "First Quarter Moon")
203	((= 2 phase) "Full Moon")
204	((= 3 phase) "Last Quarter Moon")))
205
206	(defun calendar-phases-of-moon ()
207	"Create a buffer with the lunar phases for the current calendar window."
208	(interactive)
209	(message "Computing phases of the moon...")
210	(let ((m1 displayed-month)
211	(y1 displayed-year)
212	(m2 displayed-month)
213	(y2 displayed-year)
214	(lunar-phases-buffer "Phases of Moon"))
215	(increment-calendar-month m1 y1 -1)
216	(increment-calendar-month m2 y2 1)
217	(set-buffer (get-buffer-create lunar-phases-buffer))
218	(setq buffer-read-only nil)
219	(calendar-set-mode-line
220	(format "Phases of the moon from %s, %d to %s, %d%%-"
221	(calendar-month-name m1) y1 (calendar-month-name m2) y2))
222	(erase-buffer)
223	(insert
224	(mapconcat
225	'(lambda (x)
226	(let ((date (car x))
227	(time (car (cdr x)))
228	(phase (car (cdr (cdr x)))))
229	(concat (calendar-date-string date)
230	": "
231	(lunar-phase-name phase)
232	" "
233	time)))
234	(lunar-phase-list m1 y1) "\n"))
235	(goto-char (point-min))
236	(set-buffer-modified-p nil)
237	(setq buffer-read-only t)
238	(display-buffer lunar-phases-buffer)
239	(message "Computing phases of the moon...done")))
240
241	;;;###autoload
242	(defun phases-of-moon (&optional arg)
243	"Display the quarters of the moon for last month, this month, and next month.
244	If called with an optional prefix argument, prompts for month and year.
245
246	This function is suitable for execution in a .emacs file."
247	(interactive "P")
248	(save-excursion
249	(let* ((completion-ignore-case t)
250	(date (calendar-current-date))
251	(displayed-month
252	(if arg
253	(cdr (assoc
254	(capitalize
255	(completing-read
256	"Month name: "
257	(mapcar 'list (append calendar-month-name-array nil))
258	nil t))
259	(calendar-make-alist calendar-month-name-array)))
260	(extract-calendar-month date)))
261	(displayed-year
262	(if arg
263	(calendar-read
264	"Year (>0): "
265	'(lambda (x) (> x 0))
266	(int-to-string
267	(extract-calendar-year (calendar-current-date))))
268	(extract-calendar-year date))))
269	(calendar-phases-of-moon))))
270
271	(defun diary-phases-of-moon ()
272	"Moon phases diary entry."
273	(let* ((index (* 4
274	(truncate
275	(* 12.3685
276	(+ (extract-calendar-year date)
277	( / (calendar-day-number date)
278	366.0)
279	-1900)))))
280	(phase (lunar-phase index)))
281	(while (calendar-date-compare phase (list date))
282	(setq index (1+ index))
283	(setq phase (lunar-phase index)))
284	(if (calendar-date-equal (car phase) date)
285	(concat (lunar-phase-name (car (cdr (cdr phase)))) " "
286	(car (cdr phase))))))
287
288	(provide 'lunar)
289
290	;;; lunar.el ends here