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3afbc435 | 1 | ;;; cal-hebrew.el --- calendar functions for the Hebrew calendar |
4b112ac4 | 2 | |
da3fc020 | 3 | ;; Copyright (C) 1995, 1997, 2003 Free Software Foundation, Inc. |
4b112ac4 | 4 | |
85d0ba86 | 5 | ;; Author: Nachum Dershowitz <nachum@cs.uiuc.edu> |
4b112ac4 ER |
6 | ;; Edward M. Reingold <reingold@cs.uiuc.edu> |
7 | ;; Keywords: calendar | |
8 | ;; Human-Keywords: Hebrew calendar, calendar, diary | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
4b112ac4 ER |
26 | |
27 | ;;; Commentary: | |
28 | ||
29 | ;; This collection of functions implements the features of calendar.el and | |
30 | ;; diary.el that deal with the Hebrew calendar. | |
31 | ||
a96a5fca PE |
32 | ;; Technical details of all the calendrical calculations can be found in |
33 | ;; ``Calendrical Calculations'' by Nachum Dershowitz and Edward M. Reingold, | |
34 | ;; Cambridge University Press (1997). | |
35 | ||
4b112ac4 ER |
36 | ;; Comments, corrections, and improvements should be sent to |
37 | ;; Edward M. Reingold Department of Computer Science | |
38 | ;; (217) 333-6733 University of Illinois at Urbana-Champaign | |
39 | ;; reingold@cs.uiuc.edu 1304 West Springfield Avenue | |
40 | ;; Urbana, Illinois 61801 | |
41 | ||
42 | ;;; Code: | |
43 | ||
da3fc020 GM |
44 | (defvar displayed-month) |
45 | (defvar displayed-year) | |
4b112ac4 | 46 | |
da3fc020 | 47 | (require 'calendar) |
4b112ac4 ER |
48 | |
49 | (defun hebrew-calendar-leap-year-p (year) | |
50 | "t if YEAR is a Hebrew calendar leap year." | |
51 | (< (% (1+ (* 7 year)) 19) 7)) | |
52 | ||
53 | (defun hebrew-calendar-last-month-of-year (year) | |
54 | "The last month of the Hebrew calendar YEAR." | |
55 | (if (hebrew-calendar-leap-year-p year) | |
56 | 13 | |
57 | 12)) | |
58 | ||
4b112ac4 ER |
59 | (defun hebrew-calendar-elapsed-days (year) |
60 | "Days from Sun. prior to start of Hebrew calendar to mean conjunction of Tishri of Hebrew YEAR." | |
61 | (let* ((months-elapsed | |
62 | (+ (* 235 (/ (1- year) 19));; Months in complete cycles so far. | |
63 | (* 12 (% (1- year) 19)) ;; Regular months in this cycle | |
64 | (/ (1+ (* 7 (% (1- year) 19))) 19)));; Leap months this cycle | |
65 | (parts-elapsed (+ 204 (* 793 (% months-elapsed 1080)))) | |
66 | (hours-elapsed (+ 5 | |
67 | (* 12 months-elapsed) | |
68 | (* 793 (/ months-elapsed 1080)) | |
69 | (/ parts-elapsed 1080))) | |
70 | (parts ;; Conjunction parts | |
71 | (+ (* 1080 (% hours-elapsed 24)) (% parts-elapsed 1080))) | |
72 | (day ;; Conjunction day | |
73 | (+ 1 (* 29 months-elapsed) (/ hours-elapsed 24))) | |
74 | (alternative-day | |
75 | (if (or (>= parts 19440) ;; If the new moon is at or after midday, | |
76 | (and (= (% day 7) 2);; ...or is on a Tuesday... | |
77 | (>= parts 9924) ;; at 9 hours, 204 parts or later... | |
78 | (not (hebrew-calendar-leap-year-p year)));; of a | |
79 | ;; common year, | |
80 | (and (= (% day 7) 1);; ...or is on a Monday... | |
81 | (>= parts 16789) ;; at 15 hours, 589 parts or later... | |
82 | (hebrew-calendar-leap-year-p (1- year))));; at the end | |
83 | ;; of a leap year | |
84 | ;; Then postpone Rosh HaShanah one day | |
85 | (1+ day) | |
86 | ;; Else | |
87 | day))) | |
88 | (if ;; If Rosh HaShanah would occur on Sunday, Wednesday, or Friday | |
89 | (memq (% alternative-day 7) (list 0 3 5)) | |
a1506d29 | 90 | ;; Then postpone it one (more) day and return |
4b112ac4 | 91 | (1+ alternative-day) |
a1506d29 | 92 | ;; Else return |
4b112ac4 ER |
93 | alternative-day))) |
94 | ||
95 | (defun hebrew-calendar-days-in-year (year) | |
96 | "Number of days in Hebrew YEAR." | |
97 | (- (hebrew-calendar-elapsed-days (1+ year)) | |
98 | (hebrew-calendar-elapsed-days year))) | |
99 | ||
100 | (defun hebrew-calendar-long-heshvan-p (year) | |
101 | "t if Heshvan is long in Hebrew YEAR." | |
102 | (= (% (hebrew-calendar-days-in-year year) 10) 5)) | |
103 | ||
104 | (defun hebrew-calendar-short-kislev-p (year) | |
105 | "t if Kislev is short in Hebrew YEAR." | |
106 | (= (% (hebrew-calendar-days-in-year year) 10) 3)) | |
107 | ||
da3fc020 GM |
108 | (defun hebrew-calendar-last-day-of-month (month year) |
109 | "The last day of MONTH in YEAR." | |
110 | (if (or (memq month (list 2 4 6 10 13)) | |
111 | (and (= month 12) (not (hebrew-calendar-leap-year-p year))) | |
112 | (and (= month 8) (not (hebrew-calendar-long-heshvan-p year))) | |
113 | (and (= month 9) (hebrew-calendar-short-kislev-p year))) | |
114 | 29 | |
115 | 30)) | |
116 | ||
4b112ac4 ER |
117 | (defun calendar-absolute-from-hebrew (date) |
118 | "Absolute date of Hebrew DATE. | |
119 | The absolute date is the number of days elapsed since the (imaginary) | |
120 | Gregorian date Sunday, December 31, 1 BC." | |
121 | (let* ((month (extract-calendar-month date)) | |
122 | (day (extract-calendar-day date)) | |
123 | (year (extract-calendar-year date))) | |
124 | (+ day ;; Days so far this month. | |
125 | (if (< month 7);; before Tishri | |
126 | ;; Then add days in prior months this year before and after Nisan | |
127 | (+ (calendar-sum | |
128 | m 7 (<= m (hebrew-calendar-last-month-of-year year)) | |
129 | (hebrew-calendar-last-day-of-month m year)) | |
130 | (calendar-sum | |
131 | m 1 (< m month) | |
132 | (hebrew-calendar-last-day-of-month m year))) | |
133 | ;; Else add days in prior months this year | |
134 | (calendar-sum | |
135 | m 7 (< m month) | |
136 | (hebrew-calendar-last-day-of-month m year))) | |
137 | (hebrew-calendar-elapsed-days year);; Days in prior years. | |
138 | -1373429))) ;; Days elapsed before absolute date 1. | |
139 | ||
da3fc020 GM |
140 | (defun calendar-hebrew-from-absolute (date) |
141 | "Compute the Hebrew date (month day year) corresponding to absolute DATE. | |
142 | The absolute date is the number of days elapsed since the (imaginary) | |
143 | Gregorian date Sunday, December 31, 1 BC." | |
144 | (let* ((greg-date (calendar-gregorian-from-absolute date)) | |
145 | (month (aref [9 10 11 12 1 2 3 4 7 7 7 8] | |
146 | (1- (extract-calendar-month greg-date)))) | |
147 | (day) | |
148 | (year (+ 3760 (extract-calendar-year greg-date)))) | |
149 | (while (>= date (calendar-absolute-from-hebrew (list 7 1 (1+ year)))) | |
150 | (setq year (1+ year))) | |
151 | (let ((length (hebrew-calendar-last-month-of-year year))) | |
152 | (while (> date | |
153 | (calendar-absolute-from-hebrew | |
154 | (list month | |
155 | (hebrew-calendar-last-day-of-month month year) | |
156 | year))) | |
157 | (setq month (1+ (% month length))))) | |
158 | (setq day (1+ | |
159 | (- date (calendar-absolute-from-hebrew (list month 1 year))))) | |
160 | (list month day year))) | |
161 | ||
4b112ac4 ER |
162 | (defvar calendar-hebrew-month-name-array-common-year |
163 | ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri" | |
da3fc020 GM |
164 | "Heshvan" "Kislev" "Teveth" "Shevat" "Adar"] |
165 | "Array of strings giving the names of the Hebrew months in a common year.") | |
4b112ac4 ER |
166 | |
167 | (defvar calendar-hebrew-month-name-array-leap-year | |
168 | ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri" | |
da3fc020 GM |
169 | "Heshvan" "Kislev" "Teveth" "Shevat" "Adar I" "Adar II"] |
170 | "Array of strings giving the names of the Hebrew months in a leap year.") | |
4b112ac4 ER |
171 | |
172 | (defun calendar-hebrew-date-string (&optional date) | |
173 | "String of Hebrew date before sunset of Gregorian DATE. | |
174 | Defaults to today's date if DATE is not given. | |
175 | Driven by the variable `calendar-date-display-form'." | |
176 | (let* ((hebrew-date (calendar-hebrew-from-absolute | |
177 | (calendar-absolute-from-gregorian | |
178 | (or date (calendar-current-date))))) | |
179 | (calendar-month-name-array | |
180 | (if (hebrew-calendar-leap-year-p (extract-calendar-year hebrew-date)) | |
181 | calendar-hebrew-month-name-array-leap-year | |
182 | calendar-hebrew-month-name-array-common-year))) | |
183 | (calendar-date-string hebrew-date nil t))) | |
184 | ||
185 | (defun calendar-print-hebrew-date () | |
186 | "Show the Hebrew calendar equivalent of the date under the cursor." | |
187 | (interactive) | |
188 | (message "Hebrew date (until sunset): %s" | |
189 | (calendar-hebrew-date-string (calendar-cursor-to-date t)))) | |
190 | ||
191 | (defun hebrew-calendar-yahrzeit (death-date year) | |
192 | "Absolute date of the anniversary of Hebrew DEATH-DATE in Hebrew YEAR." | |
193 | (let* ((death-day (extract-calendar-day death-date)) | |
194 | (death-month (extract-calendar-month death-date)) | |
195 | (death-year (extract-calendar-year death-date))) | |
196 | (cond | |
197 | ;; If it's Heshvan 30 it depends on the first anniversary; if | |
198 | ;; that was not Heshvan 30, use the day before Kislev 1. | |
199 | ((and (= death-month 8) | |
200 | (= death-day 30) | |
201 | (not (hebrew-calendar-long-heshvan-p (1+ death-year)))) | |
202 | (1- (calendar-absolute-from-hebrew (list 9 1 year)))) | |
203 | ;; If it's Kislev 30 it depends on the first anniversary; if | |
204 | ;; that was not Kislev 30, use the day before Teveth 1. | |
205 | ((and (= death-month 9) | |
206 | (= death-day 30) | |
207 | (hebrew-calendar-short-kislev-p (1+ death-year))) | |
208 | (1- (calendar-absolute-from-hebrew (list 10 1 year)))) | |
209 | ;; If it's Adar II, use the same day in last month of | |
210 | ;; year (Adar or Adar II). | |
211 | ((= death-month 13) | |
212 | (calendar-absolute-from-hebrew | |
213 | (list (hebrew-calendar-last-month-of-year year) death-day year))) | |
214 | ;; If it's the 30th in Adar I and year is not a leap year | |
215 | ;; (so Adar has only 29 days), use the last day in Shevat. | |
216 | ((and (= death-day 30) | |
217 | (= death-month 12) | |
218 | (not (hebrew-calendar-leap-year-p year))) | |
219 | (calendar-absolute-from-hebrew (list 11 30 year))) | |
220 | ;; In all other cases, use the normal anniversary of the date of death. | |
221 | (t (calendar-absolute-from-hebrew | |
222 | (list death-month death-day year)))))) | |
223 | ||
224 | (defun calendar-goto-hebrew-date (date &optional noecho) | |
225 | "Move cursor to Hebrew DATE; echo Hebrew date unless NOECHO is t." | |
226 | (interactive | |
227 | (let* ((today (calendar-current-date)) | |
228 | (year (calendar-read | |
229 | "Hebrew calendar year (>3760): " | |
230 | '(lambda (x) (> x 3760)) | |
231 | (int-to-string | |
232 | (extract-calendar-year | |
233 | (calendar-hebrew-from-absolute | |
234 | (calendar-absolute-from-gregorian today)))))) | |
235 | (month-array (if (hebrew-calendar-leap-year-p year) | |
236 | calendar-hebrew-month-name-array-leap-year | |
237 | calendar-hebrew-month-name-array-common-year)) | |
238 | (completion-ignore-case t) | |
6b61353c | 239 | (month (cdr (assoc-string |
bf7b2caf RS |
240 | (completing-read |
241 | "Hebrew calendar month name: " | |
242 | (mapcar 'list (append month-array nil)) | |
243 | (if (= year 3761) | |
244 | '(lambda (x) | |
245 | (let ((m (cdr | |
6b61353c | 246 | (assoc-string |
bf7b2caf | 247 | (car x) |
6b61353c KH |
248 | (calendar-make-alist month-array) |
249 | t)))) | |
bf7b2caf RS |
250 | (< 0 |
251 | (calendar-absolute-from-hebrew | |
252 | (list m | |
253 | (hebrew-calendar-last-day-of-month | |
254 | m year) | |
255 | year)))))) | |
256 | t) | |
6b61353c | 257 | (calendar-make-alist month-array 1) t))) |
4b112ac4 ER |
258 | (last (hebrew-calendar-last-day-of-month month year)) |
259 | (first (if (and (= year 3761) (= month 10)) | |
260 | 18 1)) | |
261 | (day (calendar-read | |
262 | (format "Hebrew calendar day (%d-%d): " | |
263 | first last) | |
264 | '(lambda (x) (and (<= first x) (<= x last)))))) | |
265 | (list (list month day year)))) | |
266 | (calendar-goto-date (calendar-gregorian-from-absolute | |
267 | (calendar-absolute-from-hebrew date))) | |
268 | (or noecho (calendar-print-hebrew-date))) | |
269 | ||
270 | (defun holiday-hebrew (month day string) | |
271 | "Holiday on MONTH, DAY (Hebrew) called STRING. | |
272 | If MONTH, DAY (Hebrew) is visible, the value returned is corresponding | |
273 | Gregorian date in the form of the list (((month day year) STRING)). Returns | |
274 | nil if it is not visible in the current calendar window." | |
275 | (if (memq displayed-month;; This test is only to speed things up a bit; | |
276 | (list ;; it works fine without the test too. | |
277 | (if (< 11 month) (- month 11) (+ month 1)) | |
278 | (if (< 10 month) (- month 10) (+ month 2)) | |
279 | (if (< 9 month) (- month 9) (+ month 3)) | |
280 | (if (< 8 month) (- month 8) (+ month 4)) | |
281 | (if (< 7 month) (- month 7) (+ month 5)))) | |
282 | (let ((m1 displayed-month) | |
283 | (y1 displayed-year) | |
284 | (m2 displayed-month) | |
285 | (y2 displayed-year) | |
286 | (year)) | |
287 | (increment-calendar-month m1 y1 -1) | |
288 | (increment-calendar-month m2 y2 1) | |
289 | (let* ((start-date (calendar-absolute-from-gregorian | |
290 | (list m1 1 y1))) | |
291 | (end-date (calendar-absolute-from-gregorian | |
292 | (list m2 (calendar-last-day-of-month m2 y2) y2))) | |
293 | (hebrew-start (calendar-hebrew-from-absolute start-date)) | |
294 | (hebrew-end (calendar-hebrew-from-absolute end-date)) | |
295 | (hebrew-y1 (extract-calendar-year hebrew-start)) | |
296 | (hebrew-y2 (extract-calendar-year hebrew-end))) | |
297 | (setq year (if (< 6 month) hebrew-y2 hebrew-y1)) | |
298 | (let ((date (calendar-gregorian-from-absolute | |
299 | (calendar-absolute-from-hebrew | |
300 | (list month day year))))) | |
301 | (if (calendar-date-is-visible-p date) | |
302 | (list (list date string)))))))) | |
303 | ||
304 | (defun holiday-rosh-hashanah-etc () | |
305 | "List of dates related to Rosh Hashanah, as visible in calendar window." | |
306 | (if (or (< displayed-month 8) | |
307 | (> displayed-month 11)) | |
308 | nil;; None of the dates is visible | |
309 | (let* ((abs-r-h (calendar-absolute-from-hebrew | |
310 | (list 7 1 (+ displayed-year 3761)))) | |
311 | (mandatory | |
312 | (list | |
313 | (list (calendar-gregorian-from-absolute abs-r-h) | |
314 | (format "Rosh HaShanah %d" (+ 3761 displayed-year))) | |
315 | (list (calendar-gregorian-from-absolute (+ abs-r-h 9)) | |
316 | "Yom Kippur") | |
317 | (list (calendar-gregorian-from-absolute (+ abs-r-h 14)) | |
318 | "Sukkot") | |
319 | (list (calendar-gregorian-from-absolute (+ abs-r-h 21)) | |
320 | "Shemini Atzeret") | |
321 | (list (calendar-gregorian-from-absolute (+ abs-r-h 22)) | |
322 | "Simchat Torah"))) | |
323 | (optional | |
a1506d29 | 324 | (list |
4b112ac4 ER |
325 | (list (calendar-gregorian-from-absolute |
326 | (calendar-dayname-on-or-before 6 (- abs-r-h 4))) | |
327 | "Selichot (night)") | |
328 | (list (calendar-gregorian-from-absolute (1- abs-r-h)) | |
2e3befba | 329 | "Erev Rosh HaShanah") |
4b112ac4 ER |
330 | (list (calendar-gregorian-from-absolute (1+ abs-r-h)) |
331 | "Rosh HaShanah (second day)") | |
332 | (list (calendar-gregorian-from-absolute | |
333 | (if (= (% abs-r-h 7) 4) (+ abs-r-h 3) (+ abs-r-h 2))) | |
334 | "Tzom Gedaliah") | |
335 | (list (calendar-gregorian-from-absolute | |
336 | (calendar-dayname-on-or-before 6 (+ 7 abs-r-h))) | |
337 | "Shabbat Shuvah") | |
338 | (list (calendar-gregorian-from-absolute (+ abs-r-h 8)) | |
339 | "Erev Yom Kippur") | |
340 | (list (calendar-gregorian-from-absolute (+ abs-r-h 13)) | |
341 | "Erev Sukkot") | |
342 | (list (calendar-gregorian-from-absolute (+ abs-r-h 15)) | |
343 | "Sukkot (second day)") | |
344 | (list (calendar-gregorian-from-absolute (+ abs-r-h 16)) | |
345 | "Hol Hamoed Sukkot (first day)") | |
346 | (list (calendar-gregorian-from-absolute (+ abs-r-h 17)) | |
347 | "Hol Hamoed Sukkot (second day)") | |
348 | (list (calendar-gregorian-from-absolute (+ abs-r-h 18)) | |
349 | "Hol Hamoed Sukkot (third day)") | |
350 | (list (calendar-gregorian-from-absolute (+ abs-r-h 19)) | |
351 | "Hol Hamoed Sukkot (fourth day)") | |
352 | (list (calendar-gregorian-from-absolute (+ abs-r-h 20)) | |
321a8c3e | 353 | "Hoshanah Rabbah"))) |
4b112ac4 ER |
354 | (output-list |
355 | (filter-visible-calendar-holidays mandatory))) | |
356 | (if all-hebrew-calendar-holidays | |
357 | (setq output-list | |
a1506d29 | 358 | (append |
4b112ac4 ER |
359 | (filter-visible-calendar-holidays optional) |
360 | output-list))) | |
361 | output-list))) | |
362 | ||
363 | (defun holiday-hanukkah () | |
364 | "List of dates related to Hanukkah, as visible in calendar window." | |
365 | (if (memq displayed-month;; This test is only to speed things up a bit; | |
366 | '(10 11 12 1 2));; it works fine without the test too. | |
367 | (let ((m displayed-month) | |
368 | (y displayed-year)) | |
369 | (increment-calendar-month m y 1) | |
370 | (let* ((h-y (extract-calendar-year | |
371 | (calendar-hebrew-from-absolute | |
372 | (calendar-absolute-from-gregorian | |
373 | (list m (calendar-last-day-of-month m y) y))))) | |
374 | (abs-h (calendar-absolute-from-hebrew (list 9 25 h-y)))) | |
375 | (filter-visible-calendar-holidays | |
376 | (list | |
377 | (list (calendar-gregorian-from-absolute (1- abs-h)) | |
378 | "Erev Hanukkah") | |
379 | (list (calendar-gregorian-from-absolute abs-h) | |
380 | "Hanukkah (first day)") | |
381 | (list (calendar-gregorian-from-absolute (1+ abs-h)) | |
382 | "Hanukkah (second day)") | |
383 | (list (calendar-gregorian-from-absolute (+ abs-h 2)) | |
384 | "Hanukkah (third day)") | |
385 | (list (calendar-gregorian-from-absolute (+ abs-h 3)) | |
386 | "Hanukkah (fourth day)") | |
387 | (list (calendar-gregorian-from-absolute (+ abs-h 4)) | |
388 | "Hanukkah (fifth day)") | |
389 | (list (calendar-gregorian-from-absolute (+ abs-h 5)) | |
390 | "Hanukkah (sixth day)") | |
391 | (list (calendar-gregorian-from-absolute (+ abs-h 6)) | |
392 | "Hanukkah (seventh day)") | |
393 | (list (calendar-gregorian-from-absolute (+ abs-h 7)) | |
394 | "Hanukkah (eighth day)"))))))) | |
395 | ||
396 | (defun holiday-passover-etc () | |
397 | "List of dates related to Passover, as visible in calendar window." | |
398 | (if (< 7 displayed-month) | |
399 | nil;; None of the dates is visible | |
400 | (let* ((abs-p (calendar-absolute-from-hebrew | |
401 | (list 1 15 (+ displayed-year 3760)))) | |
402 | (mandatory | |
403 | (list | |
404 | (list (calendar-gregorian-from-absolute abs-p) | |
405 | "Passover") | |
406 | (list (calendar-gregorian-from-absolute (+ abs-p 50)) | |
407 | "Shavuot"))) | |
408 | (optional | |
a1506d29 | 409 | (list |
4b112ac4 ER |
410 | (list (calendar-gregorian-from-absolute |
411 | (calendar-dayname-on-or-before 6 (- abs-p 43))) | |
412 | "Shabbat Shekalim") | |
413 | (list (calendar-gregorian-from-absolute | |
414 | (calendar-dayname-on-or-before 6 (- abs-p 30))) | |
415 | "Shabbat Zachor") | |
416 | (list (calendar-gregorian-from-absolute | |
417 | (if (= (% abs-p 7) 2) (- abs-p 33) (- abs-p 31))) | |
418 | "Fast of Esther") | |
419 | (list (calendar-gregorian-from-absolute (- abs-p 31)) | |
420 | "Erev Purim") | |
421 | (list (calendar-gregorian-from-absolute (- abs-p 30)) | |
422 | "Purim") | |
423 | (list (calendar-gregorian-from-absolute | |
424 | (if (zerop (% abs-p 7)) (- abs-p 28) (- abs-p 29))) | |
425 | "Shushan Purim") | |
426 | (list (calendar-gregorian-from-absolute | |
427 | (- (calendar-dayname-on-or-before 6 (- abs-p 14)) 7)) | |
428 | "Shabbat Parah") | |
429 | (list (calendar-gregorian-from-absolute | |
430 | (calendar-dayname-on-or-before 6 (- abs-p 14))) | |
431 | "Shabbat HaHodesh") | |
432 | (list (calendar-gregorian-from-absolute | |
433 | (calendar-dayname-on-or-before 6 (1- abs-p))) | |
434 | "Shabbat HaGadol") | |
435 | (list (calendar-gregorian-from-absolute (1- abs-p)) | |
436 | "Erev Passover") | |
437 | (list (calendar-gregorian-from-absolute (1+ abs-p)) | |
438 | "Passover (second day)") | |
439 | (list (calendar-gregorian-from-absolute (+ abs-p 2)) | |
440 | "Hol Hamoed Passover (first day)") | |
441 | (list (calendar-gregorian-from-absolute (+ abs-p 3)) | |
442 | "Hol Hamoed Passover (second day)") | |
443 | (list (calendar-gregorian-from-absolute (+ abs-p 4)) | |
444 | "Hol Hamoed Passover (third day)") | |
445 | (list (calendar-gregorian-from-absolute (+ abs-p 5)) | |
446 | "Hol Hamoed Passover (fourth day)") | |
447 | (list (calendar-gregorian-from-absolute (+ abs-p 6)) | |
448 | "Passover (seventh day)") | |
449 | (list (calendar-gregorian-from-absolute (+ abs-p 7)) | |
450 | "Passover (eighth day)") | |
bbc054a9 RS |
451 | (list (calendar-gregorian-from-absolute |
452 | (if (zerop (% (+ abs-p 12) 7)) | |
453 | (+ abs-p 13) | |
454 | (+ abs-p 12))) | |
4b112ac4 ER |
455 | "Yom HaShoah") |
456 | (list (calendar-gregorian-from-absolute | |
457 | (if (zerop (% abs-p 7)) | |
458 | (+ abs-p 18) | |
459 | (if (= (% abs-p 7) 6) | |
460 | (+ abs-p 19) | |
461 | (+ abs-p 20)))) | |
462 | "Yom HaAtzma'ut") | |
463 | (list (calendar-gregorian-from-absolute (+ abs-p 33)) | |
464 | "Lag BaOmer") | |
465 | (list (calendar-gregorian-from-absolute (+ abs-p 43)) | |
8f596798 | 466 | "Yom Yerushalaim") |
4b112ac4 ER |
467 | (list (calendar-gregorian-from-absolute (+ abs-p 49)) |
468 | "Erev Shavuot") | |
469 | (list (calendar-gregorian-from-absolute (+ abs-p 51)) | |
470 | "Shavuot (second day)"))) | |
471 | (output-list | |
472 | (filter-visible-calendar-holidays mandatory))) | |
473 | (if all-hebrew-calendar-holidays | |
474 | (setq output-list | |
a1506d29 | 475 | (append |
4b112ac4 ER |
476 | (filter-visible-calendar-holidays optional) |
477 | output-list))) | |
478 | output-list))) | |
479 | ||
480 | (defun holiday-tisha-b-av-etc () | |
481 | "List of dates around Tisha B'Av, as visible in calendar window." | |
482 | (if (or (< displayed-month 5) | |
483 | (> displayed-month 9)) | |
484 | nil;; None of the dates is visible | |
485 | (let* ((abs-t-a (calendar-absolute-from-hebrew | |
486 | (list 5 9 (+ displayed-year 3760))))) | |
487 | ||
488 | (filter-visible-calendar-holidays | |
a1506d29 | 489 | (list |
4b112ac4 ER |
490 | (list (calendar-gregorian-from-absolute |
491 | (if (= (% abs-t-a 7) 6) (- abs-t-a 20) (- abs-t-a 21))) | |
492 | "Tzom Tammuz") | |
493 | (list (calendar-gregorian-from-absolute | |
494 | (calendar-dayname-on-or-before 6 abs-t-a)) | |
495 | "Shabbat Hazon") | |
496 | (list (calendar-gregorian-from-absolute | |
497 | (if (= (% abs-t-a 7) 6) (1+ abs-t-a) abs-t-a)) | |
498 | "Tisha B'Av") | |
499 | (list (calendar-gregorian-from-absolute | |
500 | (calendar-dayname-on-or-before 6 (+ abs-t-a 7))) | |
501 | "Shabbat Nahamu")))))) | |
502 | ||
503 | (defun list-hebrew-diary-entries () | |
504 | "Add any Hebrew date entries from the diary file to `diary-entries-list'. | |
505 | Hebrew date diary entries must be prefaced by `hebrew-diary-entry-symbol' | |
506 | \(normally an `H'). The same diary date forms govern the style of the Hebrew | |
507 | calendar entries, except that the Hebrew month names must be spelled in full. | |
508 | The Hebrew months are numbered from 1 to 13 with Nisan being 1, 12 being | |
509 | Adar I and 13 being Adar II; you must use `Adar I' if you want Adar of a | |
510 | common Hebrew year. If a Hebrew date diary entry begins with a | |
511 | `diary-nonmarking-symbol', the entry will appear in the diary listing, but will | |
512 | not be marked in the calendar. This function is provided for use with the | |
513 | `nongregorian-diary-listing-hook'." | |
514 | (if (< 0 number) | |
515 | (let ((buffer-read-only nil) | |
516 | (diary-modified (buffer-modified-p)) | |
517 | (gdate original-date) | |
518 | (mark (regexp-quote diary-nonmarking-symbol))) | |
519 | (calendar-for-loop i from 1 to number do | |
520 | (let* ((d diary-date-forms) | |
a1506d29 | 521 | (hdate (calendar-hebrew-from-absolute |
4b112ac4 ER |
522 | (calendar-absolute-from-gregorian gdate))) |
523 | (month (extract-calendar-month hdate)) | |
524 | (day (extract-calendar-day hdate)) | |
525 | (year (extract-calendar-year hdate))) | |
526 | (while d | |
527 | (let* | |
528 | ((date-form (if (equal (car (car d)) 'backup) | |
529 | (cdr (car d)) | |
530 | (car d))) | |
531 | (backup (equal (car (car d)) 'backup)) | |
532 | (dayname | |
da3fc020 GM |
533 | (format "%s\\|%s\\.?" |
534 | (calendar-day-name gdate) | |
535 | (calendar-day-name gdate 'abbrev))) | |
4b112ac4 ER |
536 | (calendar-month-name-array |
537 | calendar-hebrew-month-name-array-leap-year) | |
538 | (monthname | |
539 | (concat | |
540 | "\\*\\|" | |
541 | (calendar-month-name month))) | |
542 | (month (concat "\\*\\|0*" (int-to-string month))) | |
543 | (day (concat "\\*\\|0*" (int-to-string day))) | |
544 | (year | |
545 | (concat | |
546 | "\\*\\|0*" (int-to-string year) | |
547 | (if abbreviated-calendar-year | |
548 | (concat "\\|" (int-to-string (% year 100))) | |
549 | ""))) | |
550 | (regexp | |
551 | (concat | |
552 | "\\(\\`\\|\^M\\|\n\\)" mark "?" | |
553 | (regexp-quote hebrew-diary-entry-symbol) | |
554 | "\\(" | |
555 | (mapconcat 'eval date-form "\\)\\(") | |
556 | "\\)")) | |
557 | (case-fold-search t)) | |
558 | (goto-char (point-min)) | |
559 | (while (re-search-forward regexp nil t) | |
560 | (if backup (re-search-backward "\\<" nil t)) | |
561 | (if (and (or (char-equal (preceding-char) ?\^M) | |
562 | (char-equal (preceding-char) ?\n)) | |
563 | (not (looking-at " \\|\^I"))) | |
564 | ;; Diary entry that consists only of date. | |
565 | (backward-char 1) | |
566 | ;; Found a nonempty diary entry--make it visible and | |
567 | ;; add it to the list. | |
568 | (let ((entry-start (point)) | |
569 | (date-start)) | |
570 | (re-search-backward "\^M\\|\n\\|\\`") | |
571 | (setq date-start (point)) | |
572 | (re-search-forward "\^M\\|\n" nil t 2) | |
573 | (while (looking-at " \\|\^I") | |
574 | (re-search-forward "\^M\\|\n" nil t)) | |
575 | (backward-char 1) | |
576 | (subst-char-in-region date-start (point) ?\^M ?\n t) | |
577 | (add-to-diary-list | |
f674d9ac KH |
578 | gdate |
579 | (buffer-substring-no-properties entry-start (point)) | |
580 | (buffer-substring-no-properties | |
da3fc020 GM |
581 | (1+ date-start) (1- entry-start)) |
582 | (copy-marker entry-start)))))) | |
4b112ac4 ER |
583 | (setq d (cdr d)))) |
584 | (setq gdate | |
585 | (calendar-gregorian-from-absolute | |
586 | (1+ (calendar-absolute-from-gregorian gdate))))) | |
587 | (set-buffer-modified-p diary-modified)) | |
588 | (goto-char (point-min)))) | |
589 | ||
da3fc020 GM |
590 | (defun mark-hebrew-calendar-date-pattern (month day year) |
591 | "Mark dates in calendar window that conform to Hebrew date MONTH/DAY/YEAR. | |
592 | A value of 0 in any position is a wildcard." | |
593 | (save-excursion | |
594 | (set-buffer calendar-buffer) | |
595 | (if (and (/= 0 month) (/= 0 day)) | |
596 | (if (/= 0 year) | |
597 | ;; Fully specified Hebrew date. | |
598 | (let ((date (calendar-gregorian-from-absolute | |
599 | (calendar-absolute-from-hebrew | |
600 | (list month day year))))) | |
601 | (if (calendar-date-is-visible-p date) | |
602 | (mark-visible-calendar-date date))) | |
603 | ;; Month and day in any year--this taken from the holiday stuff. | |
604 | (if (memq displayed-month;; This test is only to speed things up a | |
605 | (list ;; bit; it works fine without the test too. | |
606 | (if (< 11 month) (- month 11) (+ month 1)) | |
607 | (if (< 10 month) (- month 10) (+ month 2)) | |
608 | (if (< 9 month) (- month 9) (+ month 3)) | |
609 | (if (< 8 month) (- month 8) (+ month 4)) | |
610 | (if (< 7 month) (- month 7) (+ month 5)))) | |
611 | (let ((m1 displayed-month) | |
612 | (y1 displayed-year) | |
613 | (m2 displayed-month) | |
614 | (y2 displayed-year) | |
615 | (year)) | |
616 | (increment-calendar-month m1 y1 -1) | |
617 | (increment-calendar-month m2 y2 1) | |
618 | (let* ((start-date (calendar-absolute-from-gregorian | |
619 | (list m1 1 y1))) | |
620 | (end-date (calendar-absolute-from-gregorian | |
621 | (list m2 | |
622 | (calendar-last-day-of-month m2 y2) | |
623 | y2))) | |
624 | (hebrew-start | |
625 | (calendar-hebrew-from-absolute start-date)) | |
626 | (hebrew-end (calendar-hebrew-from-absolute end-date)) | |
627 | (hebrew-y1 (extract-calendar-year hebrew-start)) | |
628 | (hebrew-y2 (extract-calendar-year hebrew-end))) | |
629 | (setq year (if (< 6 month) hebrew-y2 hebrew-y1)) | |
630 | (let ((date (calendar-gregorian-from-absolute | |
631 | (calendar-absolute-from-hebrew | |
632 | (list month day year))))) | |
633 | (if (calendar-date-is-visible-p date) | |
634 | (mark-visible-calendar-date date))))))) | |
635 | ;; Not one of the simple cases--check all visible dates for match. | |
636 | ;; Actually, the following code takes care of ALL of the cases, but | |
637 | ;; it's much too slow to be used for the simple (common) cases. | |
638 | (let ((m displayed-month) | |
639 | (y displayed-year) | |
640 | (first-date) | |
641 | (last-date)) | |
642 | (increment-calendar-month m y -1) | |
643 | (setq first-date | |
644 | (calendar-absolute-from-gregorian | |
645 | (list m 1 y))) | |
646 | (increment-calendar-month m y 2) | |
647 | (setq last-date | |
648 | (calendar-absolute-from-gregorian | |
649 | (list m (calendar-last-day-of-month m y) y))) | |
650 | (calendar-for-loop date from first-date to last-date do | |
651 | (let* ((h-date (calendar-hebrew-from-absolute date)) | |
652 | (h-month (extract-calendar-month h-date)) | |
653 | (h-day (extract-calendar-day h-date)) | |
654 | (h-year (extract-calendar-year h-date))) | |
655 | (and (or (zerop month) | |
656 | (= month h-month)) | |
657 | (or (zerop day) | |
658 | (= day h-day)) | |
659 | (or (zerop year) | |
660 | (= year h-year)) | |
661 | (mark-visible-calendar-date | |
662 | (calendar-gregorian-from-absolute date))))))))) | |
663 | ||
4b112ac4 ER |
664 | (defun mark-hebrew-diary-entries () |
665 | "Mark days in the calendar window that have Hebrew date diary entries. | |
666 | Each entry in diary-file (or included files) visible in the calendar window | |
667 | is marked. Hebrew date entries are prefaced by a hebrew-diary-entry-symbol | |
668 | \(normally an `H'). The same diary-date-forms govern the style of the Hebrew | |
669 | calendar entries, except that the Hebrew month names must be spelled in full. | |
670 | The Hebrew months are numbered from 1 to 13 with Nisan being 1, 12 being | |
671 | Adar I and 13 being Adar II; you must use `Adar I' if you want Adar of a | |
672 | common Hebrew year. Hebrew date diary entries that begin with a | |
673 | diary-nonmarking symbol will not be marked in the calendar. This function | |
674 | is provided for use as part of the nongregorian-diary-marking-hook." | |
675 | (let ((d diary-date-forms)) | |
676 | (while d | |
677 | (let* | |
678 | ((date-form (if (equal (car (car d)) 'backup) | |
679 | (cdr (car d)) | |
680 | (car d)));; ignore 'backup directive | |
da3fc020 GM |
681 | (dayname (diary-name-pattern calendar-day-name-array |
682 | calendar-day-abbrev-array)) | |
4b112ac4 | 683 | (monthname |
da3fc020 GM |
684 | (format "%s\\|\\*" |
685 | (diary-name-pattern | |
686 | calendar-hebrew-month-name-array-leap-year))) | |
4b112ac4 ER |
687 | (month "[0-9]+\\|\\*") |
688 | (day "[0-9]+\\|\\*") | |
689 | (year "[0-9]+\\|\\*") | |
690 | (l (length date-form)) | |
691 | (d-name-pos (- l (length (memq 'dayname date-form)))) | |
692 | (d-name-pos (if (/= l d-name-pos) (+ 2 d-name-pos))) | |
693 | (m-name-pos (- l (length (memq 'monthname date-form)))) | |
694 | (m-name-pos (if (/= l m-name-pos) (+ 2 m-name-pos))) | |
695 | (d-pos (- l (length (memq 'day date-form)))) | |
696 | (d-pos (if (/= l d-pos) (+ 2 d-pos))) | |
697 | (m-pos (- l (length (memq 'month date-form)))) | |
698 | (m-pos (if (/= l m-pos) (+ 2 m-pos))) | |
699 | (y-pos (- l (length (memq 'year date-form)))) | |
700 | (y-pos (if (/= l y-pos) (+ 2 y-pos))) | |
701 | (regexp | |
702 | (concat | |
703 | "\\(\\`\\|\^M\\|\n\\)" | |
704 | (regexp-quote hebrew-diary-entry-symbol) | |
705 | "\\(" | |
706 | (mapconcat 'eval date-form "\\)\\(") | |
707 | "\\)")) | |
708 | (case-fold-search t)) | |
709 | (goto-char (point-min)) | |
710 | (while (re-search-forward regexp nil t) | |
711 | (let* ((dd-name | |
712 | (if d-name-pos | |
713 | (buffer-substring | |
714 | (match-beginning d-name-pos) | |
715 | (match-end d-name-pos)))) | |
716 | (mm-name | |
717 | (if m-name-pos | |
718 | (buffer-substring | |
719 | (match-beginning m-name-pos) | |
720 | (match-end m-name-pos)))) | |
721 | (mm (string-to-int | |
722 | (if m-pos | |
723 | (buffer-substring | |
724 | (match-beginning m-pos) | |
725 | (match-end m-pos)) | |
726 | ""))) | |
727 | (dd (string-to-int | |
728 | (if d-pos | |
729 | (buffer-substring | |
730 | (match-beginning d-pos) | |
731 | (match-end d-pos)) | |
732 | ""))) | |
733 | (y-str (if y-pos | |
734 | (buffer-substring | |
735 | (match-beginning y-pos) | |
736 | (match-end y-pos)))) | |
737 | (yy (if (not y-str) | |
738 | 0 | |
739 | (if (and (= (length y-str) 2) | |
740 | abbreviated-calendar-year) | |
741 | (let* ((current-y | |
742 | (extract-calendar-year | |
743 | (calendar-hebrew-from-absolute | |
744 | (calendar-absolute-from-gregorian | |
745 | (calendar-current-date))))) | |
746 | (y (+ (string-to-int y-str) | |
747 | (* 100 (/ current-y 100))))) | |
748 | (if (> (- y current-y) 50) | |
749 | (- y 100) | |
750 | (if (> (- current-y y) 50) | |
751 | (+ y 100) | |
752 | y))) | |
753 | (string-to-int y-str))))) | |
754 | (if dd-name | |
755 | (mark-calendar-days-named | |
6b61353c | 756 | (cdr (assoc-string dd-name |
da3fc020 GM |
757 | (calendar-make-alist |
758 | calendar-day-name-array | |
6b61353c | 759 | 0 nil calendar-day-abbrev-array) t))) |
4b112ac4 | 760 | (if mm-name |
da3fc020 GM |
761 | (setq mm |
762 | (if (string-equal mm-name "*") 0 | |
763 | (cdr | |
6b61353c | 764 | (assoc-string |
da3fc020 GM |
765 | mm-name |
766 | (calendar-make-alist | |
6b61353c | 767 | calendar-hebrew-month-name-array-leap-year) t))))) |
4b112ac4 ER |
768 | (mark-hebrew-calendar-date-pattern mm dd yy))))) |
769 | (setq d (cdr d))))) | |
770 | ||
4b112ac4 ER |
771 | (defun insert-hebrew-diary-entry (arg) |
772 | "Insert a diary entry. | |
773 | For the Hebrew date corresponding to the date indicated by point. | |
774 | Prefix arg will make the entry nonmarking." | |
775 | (interactive "P") | |
776 | (let* ((calendar-month-name-array | |
777 | calendar-hebrew-month-name-array-leap-year)) | |
778 | (make-diary-entry | |
779 | (concat | |
780 | hebrew-diary-entry-symbol | |
a1506d29 | 781 | (calendar-date-string |
4b112ac4 ER |
782 | (calendar-hebrew-from-absolute |
783 | (calendar-absolute-from-gregorian | |
784 | (calendar-cursor-to-date t))) | |
785 | nil t)) | |
786 | arg))) | |
787 | ||
788 | (defun insert-monthly-hebrew-diary-entry (arg) | |
789 | "Insert a monthly diary entry. | |
790 | For the day of the Hebrew month corresponding to the date indicated by point. | |
791 | Prefix arg will make the entry nonmarking." | |
792 | (interactive "P") | |
793 | (let* ((calendar-date-display-form | |
794 | (if european-calendar-style '(day " * ") '("* " day ))) | |
795 | (calendar-month-name-array | |
796 | calendar-hebrew-month-name-array-leap-year)) | |
797 | (make-diary-entry | |
798 | (concat | |
799 | hebrew-diary-entry-symbol | |
a1506d29 | 800 | (calendar-date-string |
4b112ac4 ER |
801 | (calendar-hebrew-from-absolute |
802 | (calendar-absolute-from-gregorian | |
803 | (calendar-cursor-to-date t))))) | |
804 | arg))) | |
805 | ||
806 | (defun insert-yearly-hebrew-diary-entry (arg) | |
807 | "Insert an annual diary entry. | |
808 | For the day of the Hebrew year corresponding to the date indicated by point. | |
809 | Prefix arg will make the entry nonmarking." | |
810 | (interactive "P") | |
811 | (let* ((calendar-date-display-form | |
812 | (if european-calendar-style | |
813 | '(day " " monthname) | |
814 | '(monthname " " day))) | |
815 | (calendar-month-name-array | |
816 | calendar-hebrew-month-name-array-leap-year)) | |
817 | (make-diary-entry | |
818 | (concat | |
819 | hebrew-diary-entry-symbol | |
a1506d29 | 820 | (calendar-date-string |
4b112ac4 ER |
821 | (calendar-hebrew-from-absolute |
822 | (calendar-absolute-from-gregorian | |
823 | (calendar-cursor-to-date t))))) | |
824 | arg))) | |
825 | ||
826 | ;;;###autoload | |
827 | (defun list-yahrzeit-dates (death-date start-year end-year) | |
828 | "List Yahrzeit dates for *Gregorian* DEATH-DATE from START-YEAR to END-YEAR. | |
829 | When called interactively from the calendar window, the date of death is taken | |
830 | from the cursor position." | |
831 | (interactive | |
832 | (let* ((death-date | |
833 | (if (equal (current-buffer) (get-buffer calendar-buffer)) | |
834 | (calendar-cursor-to-date) | |
835 | (let* ((today (calendar-current-date)) | |
836 | (year (calendar-read | |
837 | "Year of death (>0): " | |
838 | '(lambda (x) (> x 0)) | |
839 | (int-to-string (extract-calendar-year today)))) | |
840 | (month-array calendar-month-name-array) | |
841 | (completion-ignore-case t) | |
6b61353c | 842 | (month (cdr (assoc-string |
bf7b2caf RS |
843 | (completing-read |
844 | "Month of death (name): " | |
845 | (mapcar 'list (append month-array nil)) | |
846 | nil t) | |
6b61353c | 847 | (calendar-make-alist month-array 1) t))) |
4b112ac4 ER |
848 | (last (calendar-last-day-of-month month year)) |
849 | (day (calendar-read | |
850 | (format "Day of death (1-%d): " last) | |
851 | '(lambda (x) (and (< 0 x) (<= x last)))))) | |
852 | (list month day year)))) | |
853 | (death-year (extract-calendar-year death-date)) | |
854 | (start-year (calendar-read | |
855 | (format "Starting year of Yahrzeit table (>%d): " | |
856 | death-year) | |
857 | '(lambda (x) (> x death-year)) | |
858 | (int-to-string (1+ death-year)))) | |
859 | (end-year (calendar-read | |
860 | (format "Ending year of Yahrzeit table (>=%d): " | |
861 | start-year) | |
862 | '(lambda (x) (>= x start-year))))) | |
863 | (list death-date start-year end-year))) | |
864 | (message "Computing yahrzeits...") | |
865 | (let* ((yahrzeit-buffer "*Yahrzeits*") | |
866 | (h-date (calendar-hebrew-from-absolute | |
867 | (calendar-absolute-from-gregorian death-date))) | |
868 | (h-month (extract-calendar-month h-date)) | |
869 | (h-day (extract-calendar-day h-date)) | |
870 | (h-year (extract-calendar-year h-date))) | |
871 | (set-buffer (get-buffer-create yahrzeit-buffer)) | |
872 | (setq buffer-read-only nil) | |
873 | (calendar-set-mode-line | |
874 | (format "Yahrzeit dates for %s = %s" | |
875 | (calendar-date-string death-date) | |
876 | (let ((calendar-month-name-array | |
877 | (if (hebrew-calendar-leap-year-p h-year) | |
878 | calendar-hebrew-month-name-array-leap-year | |
879 | calendar-hebrew-month-name-array-common-year))) | |
880 | (calendar-date-string h-date nil t)))) | |
881 | (erase-buffer) | |
882 | (goto-char (point-min)) | |
883 | (calendar-for-loop i from start-year to end-year do | |
884 | (insert | |
885 | (calendar-date-string | |
886 | (calendar-gregorian-from-absolute | |
887 | (hebrew-calendar-yahrzeit | |
888 | h-date | |
889 | (extract-calendar-year | |
890 | (calendar-hebrew-from-absolute | |
891 | (calendar-absolute-from-gregorian (list 1 1 i))))))) "\n")) | |
892 | (goto-char (point-min)) | |
893 | (set-buffer-modified-p nil) | |
894 | (setq buffer-read-only t) | |
895 | (display-buffer yahrzeit-buffer) | |
896 | (message "Computing yahrzeits...done"))) | |
897 | ||
898 | (defun diary-hebrew-date () | |
899 | "Hebrew calendar equivalent of date diary entry." | |
900 | (format "Hebrew date (until sunset): %s" (calendar-hebrew-date-string date))) | |
901 | ||
9a27723c | 902 | (defun diary-omer (&optional mark) |
4b112ac4 | 903 | "Omer count diary entry. |
9a27723c RS |
904 | Entry applies if date is within 50 days after Passover. |
905 | ||
a1506d29 | 906 | An optional parameter MARK specifies a face or single-character string to |
9a27723c | 907 | use when highlighting the day in the calendar." |
4b112ac4 ER |
908 | (let* ((passover |
909 | (calendar-absolute-from-hebrew | |
910 | (list 1 15 (+ (extract-calendar-year date) 3760)))) | |
911 | (omer (- (calendar-absolute-from-gregorian date) passover)) | |
912 | (week (/ omer 7)) | |
913 | (day (% omer 7))) | |
914 | (if (and (> omer 0) (< omer 50)) | |
a1506d29 | 915 | (cons mark |
9a27723c RS |
916 | (format "Day %d%s of the omer (until sunset)" |
917 | omer | |
918 | (if (zerop week) | |
919 | "" | |
920 | (format ", that is, %d week%s%s" | |
921 | week | |
922 | (if (= week 1) "" "s") | |
923 | (if (zerop day) | |
924 | "" | |
925 | (format " and %d day%s" | |
926 | day (if (= day 1) "" "s")))))))))) | |
4b112ac4 | 927 | |
9a27723c | 928 | (defun diary-yahrzeit (death-month death-day death-year &optional mark) |
4b112ac4 ER |
929 | "Yahrzeit diary entry--entry applies if date is yahrzeit or the day before. |
930 | Parameters are DEATH-MONTH, DEATH-DAY, DEATH-YEAR; the diary entry is assumed | |
931 | to be the name of the person. Date of death is on the *civil* calendar; | |
932 | although the date of death is specified by the civil calendar, the proper | |
933 | Hebrew calendar yahrzeit is determined. If `european-calendar-style' is t, the | |
9a27723c RS |
934 | order of the parameters is changed to DEATH-DAY, DEATH-MONTH, DEATH-YEAR. |
935 | ||
a1506d29 | 936 | An optional parameter MARK specifies a face or single-character string to |
9a27723c | 937 | use when highlighting the day in the calendar." |
4b112ac4 ER |
938 | (let* ((h-date (calendar-hebrew-from-absolute |
939 | (calendar-absolute-from-gregorian | |
940 | (if european-calendar-style | |
941 | (list death-day death-month death-year) | |
9a27723c | 942 | (list death-month death-day death-year))))) |
4b112ac4 ER |
943 | (h-month (extract-calendar-month h-date)) |
944 | (h-day (extract-calendar-day h-date)) | |
945 | (h-year (extract-calendar-year h-date)) | |
946 | (d (calendar-absolute-from-gregorian date)) | |
947 | (yr (extract-calendar-year (calendar-hebrew-from-absolute d))) | |
948 | (diff (- yr h-year)) | |
949 | (y (hebrew-calendar-yahrzeit h-date yr))) | |
950 | (if (and (> diff 0) (or (= y d) (= y (1+ d)))) | |
9a27723c RS |
951 | (cons mark |
952 | (format "Yahrzeit of %s%s: %d%s anniversary" | |
953 | entry | |
954 | (if (= y d) "" " (evening)") | |
955 | diff | |
956 | (cond ((= (% diff 10) 1) "st") | |
957 | ((= (% diff 10) 2) "nd") | |
958 | ((= (% diff 10) 3) "rd") | |
959 | (t "th"))))))) | |
4b112ac4 | 960 | |
9a27723c | 961 | (defun diary-rosh-hodesh (&optional mark) |
4b112ac4 | 962 | "Rosh Hodesh diary entry. |
9a27723c RS |
963 | Entry applies if date is Rosh Hodesh, the day before, or the Saturday before. |
964 | ||
a1506d29 | 965 | An optional parameter MARK specifies a face or single-character string to |
9a27723c | 966 | use when highlighting the day in the calendar." |
4b112ac4 ER |
967 | (let* ((d (calendar-absolute-from-gregorian date)) |
968 | (h-date (calendar-hebrew-from-absolute d)) | |
969 | (h-month (extract-calendar-month h-date)) | |
970 | (h-day (extract-calendar-day h-date)) | |
971 | (h-year (extract-calendar-year h-date)) | |
972 | (leap-year (hebrew-calendar-leap-year-p h-year)) | |
973 | (last-day (hebrew-calendar-last-day-of-month h-month h-year)) | |
974 | (h-month-names | |
975 | (if leap-year | |
976 | calendar-hebrew-month-name-array-leap-year | |
977 | calendar-hebrew-month-name-array-common-year)) | |
978 | (this-month (aref h-month-names (1- h-month))) | |
979 | (h-yesterday (extract-calendar-day | |
980 | (calendar-hebrew-from-absolute (1- d))))) | |
981 | (if (or (= h-day 30) (and (= h-day 1) (/= h-month 7))) | |
a1506d29 | 982 | (cons mark |
9a27723c RS |
983 | (format |
984 | "Rosh Hodesh %s" | |
985 | (if (= h-day 30) | |
986 | (format | |
987 | "%s (first day)" | |
988 | ;; next month must be in the same year since this | |
989 | ;; month can't be the last month of the year since | |
990 | ;; it has 30 days | |
991 | (aref h-month-names h-month)) | |
992 | (if (= h-yesterday 30) | |
993 | (format "%s (second day)" this-month) | |
994 | this-month)))) | |
995 | (if (= (% d 7) 6) ;; Saturday--check for Shabbat Mevarchim | |
a1506d29 | 996 | (cons mark |
9a27723c RS |
997 | (cond ((and (> h-day 22) (/= h-month 6) (= 29 last-day)) |
998 | (format "Mevarchim Rosh Hodesh %s (%s)" | |
999 | (aref h-month-names | |
1000 | (if (= h-month | |
1001 | (hebrew-calendar-last-month-of-year | |
1002 | h-year)) | |
1003 | 0 h-month)) | |
1004 | (aref calendar-day-name-array (- 29 h-day)))) | |
1005 | ((and (< h-day 30) (> h-day 22) (= 30 last-day)) | |
1006 | (format "Mevarchim Rosh Hodesh %s (%s-%s)" | |
1007 | (aref h-month-names h-month) | |
1008 | (if (= h-day 29) | |
1009 | "tomorrow" | |
1010 | (aref calendar-day-name-array (- 29 h-day))) | |
1011 | (aref calendar-day-name-array | |
1012 | (% (- 30 h-day) 7)))))) | |
4b112ac4 | 1013 | (if (and (= h-day 29) (/= h-month 6)) |
347a0e23 RS |
1014 | (cons mark |
1015 | (format "Erev Rosh Hodesh %s" | |
9a27723c RS |
1016 | (aref h-month-names |
1017 | (if (= h-month | |
1018 | (hebrew-calendar-last-month-of-year | |
1019 | h-year)) | |
1020 | 0 h-month))))))))) | |
1021 | ||
da3fc020 GM |
1022 | (defvar hebrew-calendar-parashiot-names |
1023 | ["Bereshith" "Noah" "Lech L'cha" "Vayera" "Hayei Sarah" "Toledoth" | |
1024 | "Vayetze" "Vayishlah" "Vayeshev" "Mikketz" "Vayiggash" "Vayhi" | |
1025 | "Shemoth" "Vaera" "Bo" "Beshallah" "Yithro" "Mishpatim" | |
1026 | "Terumah" "Tetzavveh" "Ki Tissa" "Vayakhel" "Pekudei" "Vayikra" | |
1027 | "Tzav" "Shemini" "Tazria" "Metzora" "Aharei Moth" "Kedoshim" | |
1028 | "Emor" "Behar" "Behukkotai" "Bemidbar" "Naso" "Behaalot'cha" | |
1029 | "Shelah L'cha" "Korah" "Hukkath" "Balak" "Pinhas" "Mattoth" | |
1030 | "Masei" "Devarim" "Vaethanan" "Ekev" "Reeh" "Shofetim" | |
1031 | "Ki Tetze" "Ki Tavo" "Nitzavim" "Vayelech" "Haazinu"] | |
1032 | "The names of the parashiot in the Torah.") | |
1033 | ||
1034 | (defun hebrew-calendar-parasha-name (p) | |
1035 | "Name(s) corresponding to parasha P." | |
1036 | (if (arrayp p);; combined parasha | |
1037 | (format "%s/%s" | |
1038 | (aref hebrew-calendar-parashiot-names (aref p 0)) | |
1039 | (aref hebrew-calendar-parashiot-names (aref p 1))) | |
1040 | (aref hebrew-calendar-parashiot-names p))) | |
1041 | ||
9a27723c RS |
1042 | (defun diary-parasha (&optional mark) |
1043 | "Parasha diary entry--entry applies if date is a Saturday. | |
4b112ac4 | 1044 | |
a1506d29 | 1045 | An optional parameter MARK specifies a face or single-character string to |
9a27723c | 1046 | use when highlighting the day in the calendar." |
4b112ac4 | 1047 | (let ((d (calendar-absolute-from-gregorian date))) |
9a27723c | 1048 | (if (= (% d 7) 6) ;; Saturday |
4b112ac4 ER |
1049 | (let* |
1050 | ((h-year (extract-calendar-year | |
1051 | (calendar-hebrew-from-absolute d))) | |
2e3befba | 1052 | (rosh-hashanah |
4b112ac4 ER |
1053 | (calendar-absolute-from-hebrew (list 7 1 h-year))) |
1054 | (passover | |
1055 | (calendar-absolute-from-hebrew (list 1 15 h-year))) | |
2e3befba PE |
1056 | (rosh-hashanah-day |
1057 | (aref calendar-day-name-array (% rosh-hashanah 7))) | |
4b112ac4 ER |
1058 | (passover-day |
1059 | (aref calendar-day-name-array (% passover 7))) | |
1060 | (long-h (hebrew-calendar-long-heshvan-p h-year)) | |
1061 | (short-k (hebrew-calendar-short-kislev-p h-year)) | |
1062 | (type (cond ((and long-h (not short-k)) "complete") | |
1063 | ((and (not long-h) short-k) "incomplete") | |
1064 | (t "regular"))) | |
1065 | (year-format | |
1066 | (symbol-value | |
9a27723c | 1067 | (intern (format "hebrew-calendar-year-%s-%s-%s" ;; keviah |
2e3befba | 1068 | rosh-hashanah-day type passover-day)))) |
9a27723c | 1069 | (first-saturday ;; of Hebrew year |
2e3befba | 1070 | (calendar-dayname-on-or-before 6 (+ 6 rosh-hashanah))) |
9a27723c | 1071 | (saturday ;; which Saturday of the Hebrew year |
4b112ac4 ER |
1072 | (/ (- d first-saturday) 7)) |
1073 | (parasha (aref year-format saturday))) | |
1074 | (if parasha | |
9a27723c RS |
1075 | (cons mark |
1076 | (format | |
1077 | "Parashat %s" | |
1078 | (if (listp parasha) ;; Israel differs from diaspora | |
1079 | (if (car parasha) | |
1080 | (format "%s (diaspora), %s (Israel)" | |
1081 | (hebrew-calendar-parasha-name (car parasha)) | |
1082 | (hebrew-calendar-parasha-name (cdr parasha))) | |
1083 | (format "%s (Israel)" | |
1084 | (hebrew-calendar-parasha-name (cdr parasha)))) | |
1085 | (hebrew-calendar-parasha-name parasha))))))))) | |
4b112ac4 | 1086 | |
4b112ac4 ER |
1087 | ;; The seven ordinary year types (keviot) |
1088 | ||
1089 | (defconst hebrew-calendar-year-Saturday-incomplete-Sunday | |
1090 | [nil 52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [21 22] | |
1091 | 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42] | |
1092 | 43 44 45 46 47 48 49 50] | |
1093 | "The structure of the parashiot. | |
1094 | Hebrew year starts on Saturday, is `incomplete' (Heshvan and Kislev each have | |
1095 | 29 days), and has Passover start on Sunday.") | |
1096 | ||
1097 | (defconst hebrew-calendar-year-Saturday-complete-Tuesday | |
1098 | [nil 52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [21 22] | |
1099 | 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42] | |
1100 | 43 44 45 46 47 48 49 [50 51]] | |
1101 | "The structure of the parashiot. | |
1102 | Hebrew year that starts on Saturday, is `complete' (Heshvan and Kislev each | |
1103 | have 30 days), and has Passover start on Tuesday.") | |
1104 | ||
1105 | (defconst hebrew-calendar-year-Monday-incomplete-Tuesday | |
1106 | [51 52 nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [21 22] | |
1107 | 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42] | |
1108 | 43 44 45 46 47 48 49 [50 51]] | |
1109 | "The structure of the parashiot. | |
1110 | Hebrew year that starts on Monday, is `incomplete' (Heshvan and Kislev each | |
1111 | have 29 days), and has Passover start on Tuesday.") | |
1112 | ||
1113 | (defconst hebrew-calendar-year-Monday-complete-Thursday | |
1114 | [51 52 nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [21 22] | |
1115 | 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 (nil . 34) (34 . 35) (35 . 36) | |
1116 | (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]] | |
1117 | "The structure of the parashiot. | |
1118 | Hebrew year that starts on Monday, is `complete' (Heshvan and Kislev each have | |
1119 | 30 days), and has Passover start on Thursday.") | |
1120 | ||
1121 | (defconst hebrew-calendar-year-Tuesday-regular-Thursday | |
1122 | [51 52 nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [21 22] | |
1123 | 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 (nil . 34) (34 . 35) (35 . 36) | |
1124 | (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]] | |
1125 | "The structure of the parashiot. | |
1126 | Hebrew year that starts on Tuesday, is `regular' (Heshvan has 29 days and | |
1127 | Kislev has 30 days), and has Passover start on Thursday.") | |
1128 | ||
1129 | (defconst hebrew-calendar-year-Thursday-regular-Saturday | |
1130 | [52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [21 22] 23 | |
1131 | 24 nil (nil . 25) (25 . [26 27]) ([26 27] . [28 29]) ([28 29] . 30) | |
1132 | (30 . 31) ([31 32] . 32) 33 34 35 36 37 38 39 40 [41 42] 43 44 45 46 47 48 | |
1133 | 49 50] | |
1134 | "The structure of the parashiot. | |
1135 | Hebrew year that starts on Thursday, is `regular' (Heshvan has 29 days and | |
1136 | Kislev has 30 days), and has Passover start on Saturday.") | |
1137 | ||
1138 | (defconst hebrew-calendar-year-Thursday-complete-Sunday | |
1139 | [52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1140 | 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42] | |
1141 | 43 44 45 46 47 48 49 50] | |
1142 | "The structure of the parashiot. | |
1143 | Hebrew year that starts on Thursday, is `complete' (Heshvan and Kislev each | |
1144 | have 30 days), and has Passover start on Sunday.") | |
1145 | ||
1146 | ;; The seven leap year types (keviot) | |
1147 | ||
1148 | (defconst hebrew-calendar-year-Saturday-incomplete-Tuesday | |
1149 | [nil 52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1150 | 23 24 25 26 27 nil 28 29 30 31 32 33 34 35 36 37 38 39 40 [41 42] | |
1151 | 43 44 45 46 47 48 49 [50 51]] | |
1152 | "The structure of the parashiot. | |
1153 | Hebrew year that starts on Saturday, is `incomplete' (Heshvan and Kislev each | |
1154 | have 29 days), and has Passover start on Tuesday.") | |
1155 | ||
1156 | (defconst hebrew-calendar-year-Saturday-complete-Thursday | |
1157 | [nil 52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1158 | 23 24 25 26 27 nil 28 29 30 31 32 33 (nil . 34) (34 . 35) (35 . 36) | |
1159 | (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]] | |
1160 | "The structure of the parashiot. | |
1161 | Hebrew year that starts on Saturday, is `complete' (Heshvan and Kislev each | |
1162 | have 30 days), and has Passover start on Thursday.") | |
1163 | ||
1164 | (defconst hebrew-calendar-year-Monday-incomplete-Thursday | |
1165 | [51 52 nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1166 | 23 24 25 26 27 nil 28 29 30 31 32 33 (nil . 34) (34 . 35) (35 . 36) | |
1167 | (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]] | |
1168 | "The structure of the parashiot. | |
1169 | Hebrew year that starts on Monday, is `incomplete' (Heshvan and Kislev each | |
1170 | have 29 days), and has Passover start on Thursday.") | |
1171 | ||
1172 | (defconst hebrew-calendar-year-Monday-complete-Saturday | |
1173 | [51 52 nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1174 | 23 24 25 26 27 nil (nil . 28) (28 . 29) (29 . 30) (30 . 31) (31 . 32) | |
1175 | (32 . 33) (33 . 34) (34 . 35) (35 . 36) (36 . 37) (37 . 38) (38 . 39) | |
1176 | (39 . 40) (40 . 41) ([41 42] . 42) 43 44 45 46 47 48 49 50] | |
1177 | "The structure of the parashiot. | |
1178 | Hebrew year that starts on Monday, is `complete' (Heshvan and Kislev each have | |
1179 | 30 days), and has Passover start on Saturday.") | |
1180 | ||
1181 | (defconst hebrew-calendar-year-Tuesday-regular-Saturday | |
1182 | [51 52 nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1183 | 23 24 25 26 27 nil (nil . 28) (28 . 29) (29 . 30) (30 . 31) (31 . 32) | |
1184 | (32 . 33) (33 . 34) (34 . 35) (35 . 36) (36 . 37) (37 . 38) (38 . 39) | |
1185 | (39 . 40) (40 . 41) ([41 42] . 42) 43 44 45 46 47 48 49 50] | |
1186 | "The structure of the parashiot. | |
1187 | Hebrew year that starts on Tuesday, is `regular' (Heshvan has 29 days and | |
1188 | Kislev has 30 days), and has Passover start on Saturday.") | |
1189 | ||
1190 | (defconst hebrew-calendar-year-Thursday-incomplete-Sunday | |
1191 | [52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1192 | 23 24 25 26 27 28 nil 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | |
1193 | 43 44 45 46 47 48 49 50] | |
1194 | "The structure of the parashiot. | |
1195 | Hebrew year that starts on Thursday, is `incomplete' (Heshvan and Kislev both | |
1196 | have 29 days), and has Passover start on Sunday.") | |
1197 | ||
1198 | (defconst hebrew-calendar-year-Thursday-complete-Tuesday | |
1199 | [52 nil nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | |
1200 | 23 24 25 26 27 28 nil 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | |
1201 | 43 44 45 46 47 48 49 [50 51]] | |
1202 | "The structure of the parashiot. | |
1203 | Hebrew year that starts on Thursday, is `complete' (Heshvan and Kislev both | |
1204 | have 30 days), and has Passover start on Tuesday.") | |
1205 | ||
4b112ac4 ER |
1206 | (provide 'cal-hebrew) |
1207 | ||
6b61353c | 1208 | ;;; arch-tag: aaab6718-7712-42ac-a32d-28fe1f944f3c |
4b112ac4 | 1209 | ;;; cal-hebrew.el ends here |