1 ;;; cal-hebrew.el --- calendar functions for the Hebrew calendar.
3 ;; Copyright (C) 1995 Free Software Foundation, Inc.
5 ;; Author: Nachum Dershowitz <nachum@cs.uiuc.edu>
6 ;; Edward M. Reingold <reingold@cs.uiuc.edu>
8 ;; Human-Keywords: Hebrew calendar, calendar, diary
10 ;; This file is part of GNU Emacs.
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)
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.
22 ;; You should have received a copy of the GNU General Public License
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.
29 ;; This collection of functions implements the features of calendar.el and
30 ;; diary.el that deal with the Hebrew calendar.
32 ;; Comments, corrections, and improvements should be sent to
33 ;; Edward M. Reingold Department of Computer Science
34 ;; (217) 333-6733 University of Illinois at Urbana-Champaign
35 ;; reingold@cs.uiuc.edu 1304 West Springfield Avenue
36 ;; Urbana, Illinois 61801
42 (defun calendar-hebrew-from-absolute (date)
43 "Compute the Hebrew date (month day year) corresponding to absolute DATE.
44 The absolute date is the number of days elapsed since the (imaginary)
45 Gregorian date Sunday, December 31, 1 BC."
46 (let* ((greg-date (calendar-gregorian-from-absolute date
))
47 (month (aref [9 10 11 12 1 2 3 4 7 7 7 8]
48 (1- (extract-calendar-month greg-date
))))
50 (year (+ 3760 (extract-calendar-year greg-date
))))
51 (while (>= date
(calendar-absolute-from-hebrew (list 7 1 (1+ year
))))
52 (setq year
(1+ year
)))
53 (let ((length (hebrew-calendar-last-month-of-year year
)))
55 (calendar-absolute-from-hebrew
57 (hebrew-calendar-last-day-of-month month year
)
59 (setq month
(1+ (% month length
)))))
61 (- date
(calendar-absolute-from-hebrew (list month
1 year
)))))
62 (list month day year
)))
64 (defun hebrew-calendar-leap-year-p (year)
65 "t if YEAR is a Hebrew calendar leap year."
66 (< (%
(1+ (* 7 year
)) 19) 7))
68 (defun hebrew-calendar-last-month-of-year (year)
69 "The last month of the Hebrew calendar YEAR."
70 (if (hebrew-calendar-leap-year-p year
)
74 (defun hebrew-calendar-last-day-of-month (month year
)
75 "The last day of MONTH in YEAR."
76 (if (or (memq month
(list 2 4 6 10 13))
77 (and (= month
12) (not (hebrew-calendar-leap-year-p year
)))
78 (and (= month
8) (not (hebrew-calendar-long-heshvan-p year
)))
79 (and (= month
9) (hebrew-calendar-short-kislev-p year
)))
83 (defun hebrew-calendar-elapsed-days (year)
84 "Days from Sun. prior to start of Hebrew calendar to mean conjunction of Tishri of Hebrew YEAR."
85 (let* ((months-elapsed
86 (+ (* 235 (/ (1- year
) 19));; Months in complete cycles so far.
87 (* 12 (%
(1- year
) 19)) ;; Regular months in this cycle
88 (/ (1+ (* 7 (%
(1- year
) 19))) 19)));; Leap months this cycle
89 (parts-elapsed (+ 204 (* 793 (% months-elapsed
1080))))
92 (* 793 (/ months-elapsed
1080))
93 (/ parts-elapsed
1080)))
94 (parts ;; Conjunction parts
95 (+ (* 1080 (% hours-elapsed
24)) (% parts-elapsed
1080)))
96 (day ;; Conjunction day
97 (+ 1 (* 29 months-elapsed
) (/ hours-elapsed
24)))
99 (if (or (>= parts
19440) ;; If the new moon is at or after midday,
100 (and (= (% day
7) 2);; ...or is on a Tuesday...
101 (>= parts
9924) ;; at 9 hours, 204 parts or later...
102 (not (hebrew-calendar-leap-year-p year
)));; of a
104 (and (= (% day
7) 1);; ...or is on a Monday...
105 (>= parts
16789) ;; at 15 hours, 589 parts or later...
106 (hebrew-calendar-leap-year-p (1- year
))));; at the end
108 ;; Then postpone Rosh HaShanah one day
112 (if ;; If Rosh HaShanah would occur on Sunday, Wednesday, or Friday
113 (memq (% alternative-day
7) (list 0 3 5))
114 ;; Then postpone it one (more) day and return
119 (defun hebrew-calendar-days-in-year (year)
120 "Number of days in Hebrew YEAR."
121 (- (hebrew-calendar-elapsed-days (1+ year
))
122 (hebrew-calendar-elapsed-days year
)))
124 (defun hebrew-calendar-long-heshvan-p (year)
125 "t if Heshvan is long in Hebrew YEAR."
126 (= (%
(hebrew-calendar-days-in-year year
) 10) 5))
128 (defun hebrew-calendar-short-kislev-p (year)
129 "t if Kislev is short in Hebrew YEAR."
130 (= (%
(hebrew-calendar-days-in-year year
) 10) 3))
132 (defun calendar-absolute-from-hebrew (date)
133 "Absolute date of Hebrew DATE.
134 The absolute date is the number of days elapsed since the (imaginary)
135 Gregorian date Sunday, December 31, 1 BC."
136 (let* ((month (extract-calendar-month date
))
137 (day (extract-calendar-day date
))
138 (year (extract-calendar-year date
)))
139 (+ day
;; Days so far this month.
140 (if (< month
7);; before Tishri
141 ;; Then add days in prior months this year before and after Nisan
143 m
7 (<= m
(hebrew-calendar-last-month-of-year year
))
144 (hebrew-calendar-last-day-of-month m year
))
147 (hebrew-calendar-last-day-of-month m year
)))
148 ;; Else add days in prior months this year
151 (hebrew-calendar-last-day-of-month m year
)))
152 (hebrew-calendar-elapsed-days year
);; Days in prior years.
153 -
1373429))) ;; Days elapsed before absolute date 1.
155 (defvar calendar-hebrew-month-name-array-common-year
156 ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri"
157 "Heshvan" "Kislev" "Teveth" "Shevat" "Adar"])
159 (defvar calendar-hebrew-month-name-array-leap-year
160 ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri"
161 "Heshvan" "Kislev" "Teveth" "Shevat" "Adar I" "Adar II"])
163 (defun calendar-hebrew-date-string (&optional date
)
164 "String of Hebrew date before sunset of Gregorian DATE.
165 Defaults to today's date if DATE is not given.
166 Driven by the variable `calendar-date-display-form'."
167 (let* ((hebrew-date (calendar-hebrew-from-absolute
168 (calendar-absolute-from-gregorian
169 (or date
(calendar-current-date)))))
170 (calendar-month-name-array
171 (if (hebrew-calendar-leap-year-p (extract-calendar-year hebrew-date
))
172 calendar-hebrew-month-name-array-leap-year
173 calendar-hebrew-month-name-array-common-year
)))
174 (calendar-date-string hebrew-date nil t
)))
176 (defun calendar-print-hebrew-date ()
177 "Show the Hebrew calendar equivalent of the date under the cursor."
179 (message "Hebrew date (until sunset): %s"
180 (calendar-hebrew-date-string (calendar-cursor-to-date t
))))
182 (defun hebrew-calendar-yahrzeit (death-date year
)
183 "Absolute date of the anniversary of Hebrew DEATH-DATE in Hebrew YEAR."
184 (let* ((death-day (extract-calendar-day death-date
))
185 (death-month (extract-calendar-month death-date
))
186 (death-year (extract-calendar-year death-date
)))
188 ;; If it's Heshvan 30 it depends on the first anniversary; if
189 ;; that was not Heshvan 30, use the day before Kislev 1.
190 ((and (= death-month
8)
192 (not (hebrew-calendar-long-heshvan-p (1+ death-year
))))
193 (1- (calendar-absolute-from-hebrew (list 9 1 year
))))
194 ;; If it's Kislev 30 it depends on the first anniversary; if
195 ;; that was not Kislev 30, use the day before Teveth 1.
196 ((and (= death-month
9)
198 (hebrew-calendar-short-kislev-p (1+ death-year
)))
199 (1- (calendar-absolute-from-hebrew (list 10 1 year
))))
200 ;; If it's Adar II, use the same day in last month of
201 ;; year (Adar or Adar II).
203 (calendar-absolute-from-hebrew
204 (list (hebrew-calendar-last-month-of-year year
) death-day year
)))
205 ;; If it's the 30th in Adar I and year is not a leap year
206 ;; (so Adar has only 29 days), use the last day in Shevat.
207 ((and (= death-day
30)
209 (not (hebrew-calendar-leap-year-p year
)))
210 (calendar-absolute-from-hebrew (list 11 30 year
)))
211 ;; In all other cases, use the normal anniversary of the date of death.
212 (t (calendar-absolute-from-hebrew
213 (list death-month death-day year
))))))
215 (defun calendar-goto-hebrew-date (date &optional noecho
)
216 "Move cursor to Hebrew DATE; echo Hebrew date unless NOECHO is t."
218 (let* ((today (calendar-current-date))
220 "Hebrew calendar year (>3760): "
221 '(lambda (x) (> x
3760))
223 (extract-calendar-year
224 (calendar-hebrew-from-absolute
225 (calendar-absolute-from-gregorian today
))))))
226 (month-array (if (hebrew-calendar-leap-year-p year
)
227 calendar-hebrew-month-name-array-leap-year
228 calendar-hebrew-month-name-array-common-year
))
229 (completion-ignore-case t
)
233 "Hebrew calendar month name: "
234 (mapcar 'list
(append month-array nil
))
243 (calendar-absolute-from-hebrew
245 (hebrew-calendar-last-day-of-month
250 (calendar-make-alist month-array
1 'capitalize
))))
251 (last (hebrew-calendar-last-day-of-month month year
))
252 (first (if (and (= year
3761) (= month
10))
255 (format "Hebrew calendar day (%d-%d): "
257 '(lambda (x) (and (<= first x
) (<= x last
))))))
258 (list (list month day year
))))
259 (calendar-goto-date (calendar-gregorian-from-absolute
260 (calendar-absolute-from-hebrew date
)))
261 (or noecho
(calendar-print-hebrew-date)))
263 (defun holiday-hebrew (month day string
)
264 "Holiday on MONTH, DAY (Hebrew) called STRING.
265 If MONTH, DAY (Hebrew) is visible, the value returned is corresponding
266 Gregorian date in the form of the list (((month day year) STRING)). Returns
267 nil if it is not visible in the current calendar window."
268 (if (memq displayed-month
;; This test is only to speed things up a bit;
269 (list ;; it works fine without the test too.
270 (if (< 11 month
) (- month
11) (+ month
1))
271 (if (< 10 month
) (- month
10) (+ month
2))
272 (if (< 9 month
) (- month
9) (+ month
3))
273 (if (< 8 month
) (- month
8) (+ month
4))
274 (if (< 7 month
) (- month
7) (+ month
5))))
275 (let ((m1 displayed-month
)
280 (increment-calendar-month m1 y1 -
1)
281 (increment-calendar-month m2 y2
1)
282 (let* ((start-date (calendar-absolute-from-gregorian
284 (end-date (calendar-absolute-from-gregorian
285 (list m2
(calendar-last-day-of-month m2 y2
) y2
)))
286 (hebrew-start (calendar-hebrew-from-absolute start-date
))
287 (hebrew-end (calendar-hebrew-from-absolute end-date
))
288 (hebrew-y1 (extract-calendar-year hebrew-start
))
289 (hebrew-y2 (extract-calendar-year hebrew-end
)))
290 (setq year
(if (< 6 month
) hebrew-y2 hebrew-y1
))
291 (let ((date (calendar-gregorian-from-absolute
292 (calendar-absolute-from-hebrew
293 (list month day year
)))))
294 (if (calendar-date-is-visible-p date
)
295 (list (list date string
))))))))
297 (defun holiday-rosh-hashanah-etc ()
298 "List of dates related to Rosh Hashanah, as visible in calendar window."
299 (if (or (< displayed-month
8)
300 (> displayed-month
11))
301 nil
;; None of the dates is visible
302 (let* ((abs-r-h (calendar-absolute-from-hebrew
303 (list 7 1 (+ displayed-year
3761))))
306 (list (calendar-gregorian-from-absolute abs-r-h
)
307 (format "Rosh HaShanah %d" (+ 3761 displayed-year
)))
308 (list (calendar-gregorian-from-absolute (+ abs-r-h
9))
310 (list (calendar-gregorian-from-absolute (+ abs-r-h
14))
312 (list (calendar-gregorian-from-absolute (+ abs-r-h
21))
314 (list (calendar-gregorian-from-absolute (+ abs-r-h
22))
318 (list (calendar-gregorian-from-absolute
319 (calendar-dayname-on-or-before 6 (- abs-r-h
4)))
321 (list (calendar-gregorian-from-absolute (1- abs-r-h
))
322 "Erev Rosh HaShanah")
323 (list (calendar-gregorian-from-absolute (1+ abs-r-h
))
324 "Rosh HaShanah (second day)")
325 (list (calendar-gregorian-from-absolute
326 (if (= (% abs-r-h
7) 4) (+ abs-r-h
3) (+ abs-r-h
2)))
328 (list (calendar-gregorian-from-absolute
329 (calendar-dayname-on-or-before 6 (+ 7 abs-r-h
)))
331 (list (calendar-gregorian-from-absolute (+ abs-r-h
8))
333 (list (calendar-gregorian-from-absolute (+ abs-r-h
13))
335 (list (calendar-gregorian-from-absolute (+ abs-r-h
15))
336 "Sukkot (second day)")
337 (list (calendar-gregorian-from-absolute (+ abs-r-h
16))
338 "Hol Hamoed Sukkot (first day)")
339 (list (calendar-gregorian-from-absolute (+ abs-r-h
17))
340 "Hol Hamoed Sukkot (second day)")
341 (list (calendar-gregorian-from-absolute (+ abs-r-h
18))
342 "Hol Hamoed Sukkot (third day)")
343 (list (calendar-gregorian-from-absolute (+ abs-r-h
19))
344 "Hol Hamoed Sukkot (fourth day)")
345 (list (calendar-gregorian-from-absolute (+ abs-r-h
20))
346 "Hoshannah Rabbah")))
348 (filter-visible-calendar-holidays mandatory
)))
349 (if all-hebrew-calendar-holidays
352 (filter-visible-calendar-holidays optional
)
356 (defun holiday-hanukkah ()
357 "List of dates related to Hanukkah, as visible in calendar window."
358 (if (memq displayed-month
;; This test is only to speed things up a bit;
359 '(10 11 12 1 2));; it works fine without the test too.
360 (let ((m displayed-month
)
362 (increment-calendar-month m y
1)
363 (let* ((h-y (extract-calendar-year
364 (calendar-hebrew-from-absolute
365 (calendar-absolute-from-gregorian
366 (list m
(calendar-last-day-of-month m y
) y
)))))
367 (abs-h (calendar-absolute-from-hebrew (list 9 25 h-y
))))
368 (filter-visible-calendar-holidays
370 (list (calendar-gregorian-from-absolute (1- abs-h
))
372 (list (calendar-gregorian-from-absolute abs-h
)
373 "Hanukkah (first day)")
374 (list (calendar-gregorian-from-absolute (1+ abs-h
))
375 "Hanukkah (second day)")
376 (list (calendar-gregorian-from-absolute (+ abs-h
2))
377 "Hanukkah (third day)")
378 (list (calendar-gregorian-from-absolute (+ abs-h
3))
379 "Hanukkah (fourth day)")
380 (list (calendar-gregorian-from-absolute (+ abs-h
4))
381 "Hanukkah (fifth day)")
382 (list (calendar-gregorian-from-absolute (+ abs-h
5))
383 "Hanukkah (sixth day)")
384 (list (calendar-gregorian-from-absolute (+ abs-h
6))
385 "Hanukkah (seventh day)")
386 (list (calendar-gregorian-from-absolute (+ abs-h
7))
387 "Hanukkah (eighth day)")))))))
389 (defun holiday-passover-etc ()
390 "List of dates related to Passover, as visible in calendar window."
391 (if (< 7 displayed-month
)
392 nil
;; None of the dates is visible
393 (let* ((abs-p (calendar-absolute-from-hebrew
394 (list 1 15 (+ displayed-year
3760))))
397 (list (calendar-gregorian-from-absolute abs-p
)
399 (list (calendar-gregorian-from-absolute (+ abs-p
50))
403 (list (calendar-gregorian-from-absolute
404 (calendar-dayname-on-or-before 6 (- abs-p
43)))
406 (list (calendar-gregorian-from-absolute
407 (calendar-dayname-on-or-before 6 (- abs-p
30)))
409 (list (calendar-gregorian-from-absolute
410 (if (= (% abs-p
7) 2) (- abs-p
33) (- abs-p
31)))
412 (list (calendar-gregorian-from-absolute (- abs-p
31))
414 (list (calendar-gregorian-from-absolute (- abs-p
30))
416 (list (calendar-gregorian-from-absolute
417 (if (zerop (% abs-p
7)) (- abs-p
28) (- abs-p
29)))
419 (list (calendar-gregorian-from-absolute
420 (- (calendar-dayname-on-or-before 6 (- abs-p
14)) 7))
422 (list (calendar-gregorian-from-absolute
423 (calendar-dayname-on-or-before 6 (- abs-p
14)))
425 (list (calendar-gregorian-from-absolute
426 (calendar-dayname-on-or-before 6 (1- abs-p
)))
428 (list (calendar-gregorian-from-absolute (1- abs-p
))
430 (list (calendar-gregorian-from-absolute (1+ abs-p
))
431 "Passover (second day)")
432 (list (calendar-gregorian-from-absolute (+ abs-p
2))
433 "Hol Hamoed Passover (first day)")
434 (list (calendar-gregorian-from-absolute (+ abs-p
3))
435 "Hol Hamoed Passover (second day)")
436 (list (calendar-gregorian-from-absolute (+ abs-p
4))
437 "Hol Hamoed Passover (third day)")
438 (list (calendar-gregorian-from-absolute (+ abs-p
5))
439 "Hol Hamoed Passover (fourth day)")
440 (list (calendar-gregorian-from-absolute (+ abs-p
6))
441 "Passover (seventh day)")
442 (list (calendar-gregorian-from-absolute (+ abs-p
7))
443 "Passover (eighth day)")
444 (list (calendar-gregorian-from-absolute
445 (if (zerop (%
(+ abs-p
12) 7))
449 (list (calendar-gregorian-from-absolute
450 (if (zerop (% abs-p
7))
452 (if (= (% abs-p
7) 6)
456 (list (calendar-gregorian-from-absolute (+ abs-p
33))
458 (list (calendar-gregorian-from-absolute (+ abs-p
43))
460 (list (calendar-gregorian-from-absolute (+ abs-p
49))
462 (list (calendar-gregorian-from-absolute (+ abs-p
51))
463 "Shavuot (second day)")))
465 (filter-visible-calendar-holidays mandatory
)))
466 (if all-hebrew-calendar-holidays
469 (filter-visible-calendar-holidays optional
)
473 (defun holiday-tisha-b-av-etc ()
474 "List of dates around Tisha B'Av, as visible in calendar window."
475 (if (or (< displayed-month
5)
476 (> displayed-month
9))
477 nil
;; None of the dates is visible
478 (let* ((abs-t-a (calendar-absolute-from-hebrew
479 (list 5 9 (+ displayed-year
3760)))))
481 (filter-visible-calendar-holidays
483 (list (calendar-gregorian-from-absolute
484 (if (= (% abs-t-a
7) 6) (- abs-t-a
20) (- abs-t-a
21)))
486 (list (calendar-gregorian-from-absolute
487 (calendar-dayname-on-or-before 6 abs-t-a
))
489 (list (calendar-gregorian-from-absolute
490 (if (= (% abs-t-a
7) 6) (1+ abs-t-a
) abs-t-a
))
492 (list (calendar-gregorian-from-absolute
493 (calendar-dayname-on-or-before 6 (+ abs-t-a
7)))
494 "Shabbat Nahamu"))))))
496 (defun list-hebrew-diary-entries ()
497 "Add any Hebrew date entries from the diary file to `diary-entries-list'.
498 Hebrew date diary entries must be prefaced by `hebrew-diary-entry-symbol'
499 \(normally an `H'). The same diary date forms govern the style of the Hebrew
500 calendar entries, except that the Hebrew month names must be spelled in full.
501 The Hebrew months are numbered from 1 to 13 with Nisan being 1, 12 being
502 Adar I and 13 being Adar II; you must use `Adar I' if you want Adar of a
503 common Hebrew year. If a Hebrew date diary entry begins with a
504 `diary-nonmarking-symbol', the entry will appear in the diary listing, but will
505 not be marked in the calendar. This function is provided for use with the
506 `nongregorian-diary-listing-hook'."
508 (let ((buffer-read-only nil
)
509 (diary-modified (buffer-modified-p))
510 (gdate original-date
)
511 (mark (regexp-quote diary-nonmarking-symbol
)))
512 (calendar-for-loop i from
1 to number do
513 (let* ((d diary-date-forms
)
514 (hdate (calendar-hebrew-from-absolute
515 (calendar-absolute-from-gregorian gdate
)))
516 (month (extract-calendar-month hdate
))
517 (day (extract-calendar-day hdate
))
518 (year (extract-calendar-year hdate
)))
521 ((date-form (if (equal (car (car d
)) 'backup
)
524 (backup (equal (car (car d
)) 'backup
))
527 (calendar-day-name gdate
) "\\|"
528 (substring (calendar-day-name gdate
) 0 3) ".?"))
529 (calendar-month-name-array
530 calendar-hebrew-month-name-array-leap-year
)
534 (calendar-month-name month
)))
535 (month (concat "\\*\\|0*" (int-to-string month
)))
536 (day (concat "\\*\\|0*" (int-to-string day
)))
539 "\\*\\|0*" (int-to-string year
)
540 (if abbreviated-calendar-year
541 (concat "\\|" (int-to-string (% year
100)))
545 "\\(\\`\\|\^M\\|\n\\)" mark
"?"
546 (regexp-quote hebrew-diary-entry-symbol
)
548 (mapconcat 'eval date-form
"\\)\\(")
550 (case-fold-search t
))
551 (goto-char (point-min))
552 (while (re-search-forward regexp nil t
)
553 (if backup
(re-search-backward "\\<" nil t
))
554 (if (and (or (char-equal (preceding-char) ?\^M
)
555 (char-equal (preceding-char) ?
\n))
556 (not (looking-at " \\|\^I")))
557 ;; Diary entry that consists only of date.
559 ;; Found a nonempty diary entry--make it visible and
560 ;; add it to the list.
561 (let ((entry-start (point))
563 (re-search-backward "\^M\\|\n\\|\\`")
564 (setq date-start
(point))
565 (re-search-forward "\^M\\|\n" nil t
2)
566 (while (looking-at " \\|\^I")
567 (re-search-forward "\^M\\|\n" nil t
))
569 (subst-char-in-region date-start
(point) ?\^M ?
\n t
)
571 gdate
(buffer-substring entry-start
(point)))))))
574 (calendar-gregorian-from-absolute
575 (1+ (calendar-absolute-from-gregorian gdate
)))))
576 (set-buffer-modified-p diary-modified
))
577 (goto-char (point-min))))
579 (defun mark-hebrew-diary-entries ()
580 "Mark days in the calendar window that have Hebrew date diary entries.
581 Each entry in diary-file (or included files) visible in the calendar window
582 is marked. Hebrew date entries are prefaced by a hebrew-diary-entry-symbol
583 \(normally an `H'). The same diary-date-forms govern the style of the Hebrew
584 calendar entries, except that the Hebrew month names must be spelled in full.
585 The Hebrew months are numbered from 1 to 13 with Nisan being 1, 12 being
586 Adar I and 13 being Adar II; you must use `Adar I' if you want Adar of a
587 common Hebrew year. Hebrew date diary entries that begin with a
588 diary-nonmarking symbol will not be marked in the calendar. This function
589 is provided for use as part of the nongregorian-diary-marking-hook."
590 (let ((d diary-date-forms
))
593 ((date-form (if (equal (car (car d
)) 'backup
)
595 (car d
)));; ignore 'backup directive
596 (dayname (diary-name-pattern calendar-day-name-array
))
599 (diary-name-pattern calendar-hebrew-month-name-array-leap-year t
)
601 (month "[0-9]+\\|\\*")
603 (year "[0-9]+\\|\\*")
604 (l (length date-form
))
605 (d-name-pos (- l
(length (memq 'dayname date-form
))))
606 (d-name-pos (if (/= l d-name-pos
) (+ 2 d-name-pos
)))
607 (m-name-pos (- l
(length (memq 'monthname date-form
))))
608 (m-name-pos (if (/= l m-name-pos
) (+ 2 m-name-pos
)))
609 (d-pos (- l
(length (memq 'day date-form
))))
610 (d-pos (if (/= l d-pos
) (+ 2 d-pos
)))
611 (m-pos (- l
(length (memq 'month date-form
))))
612 (m-pos (if (/= l m-pos
) (+ 2 m-pos
)))
613 (y-pos (- l
(length (memq 'year date-form
))))
614 (y-pos (if (/= l y-pos
) (+ 2 y-pos
)))
617 "\\(\\`\\|\^M\\|\n\\)"
618 (regexp-quote hebrew-diary-entry-symbol
)
620 (mapconcat 'eval date-form
"\\)\\(")
622 (case-fold-search t
))
623 (goto-char (point-min))
624 (while (re-search-forward regexp nil t
)
628 (match-beginning d-name-pos
)
629 (match-end d-name-pos
))))
633 (match-beginning m-name-pos
)
634 (match-end m-name-pos
))))
638 (match-beginning m-pos
)
644 (match-beginning d-pos
)
649 (match-beginning y-pos
)
653 (if (and (= (length y-str
) 2)
654 abbreviated-calendar-year
)
656 (extract-calendar-year
657 (calendar-hebrew-from-absolute
658 (calendar-absolute-from-gregorian
659 (calendar-current-date)))))
660 (y (+ (string-to-int y-str
)
661 (* 100 (/ current-y
100)))))
662 (if (> (- y current-y
) 50)
664 (if (> (- current-y y
) 50)
667 (string-to-int y-str
)))))
669 (mark-calendar-days-named
670 (cdr (assoc (capitalize (substring dd-name
0 3))
672 calendar-day-name-array
674 '(lambda (x) (substring x
0 3))))))
676 (if (string-equal mm-name
"*")
684 calendar-hebrew-month-name-array-leap-year
))))))
685 (mark-hebrew-calendar-date-pattern mm dd yy
)))))
688 (defun mark-hebrew-calendar-date-pattern (month day year
)
689 "Mark dates in calendar window that conform to Hebrew date MONTH/DAY/YEAR.
690 A value of 0 in any position is a wildcard."
692 (set-buffer calendar-buffer
)
693 (if (and (/= 0 month
) (/= 0 day
))
695 ;; Fully specified Hebrew date.
696 (let ((date (calendar-gregorian-from-absolute
697 (calendar-absolute-from-hebrew
698 (list month day year
)))))
699 (if (calendar-date-is-visible-p date
)
700 (mark-visible-calendar-date date
)))
701 ;; Month and day in any year--this taken from the holiday stuff.
702 (if (memq displayed-month
;; This test is only to speed things up a
703 (list ;; bit; it works fine without the test too.
704 (if (< 11 month
) (- month
11) (+ month
1))
705 (if (< 10 month
) (- month
10) (+ month
2))
706 (if (< 9 month
) (- month
9) (+ month
3))
707 (if (< 8 month
) (- month
8) (+ month
4))
708 (if (< 7 month
) (- month
7) (+ month
5))))
709 (let ((m1 displayed-month
)
714 (increment-calendar-month m1 y1 -
1)
715 (increment-calendar-month m2 y2
1)
716 (let* ((start-date (calendar-absolute-from-gregorian
718 (end-date (calendar-absolute-from-gregorian
720 (calendar-last-day-of-month m2 y2
)
723 (calendar-hebrew-from-absolute start-date
))
724 (hebrew-end (calendar-hebrew-from-absolute end-date
))
725 (hebrew-y1 (extract-calendar-year hebrew-start
))
726 (hebrew-y2 (extract-calendar-year hebrew-end
)))
727 (setq year
(if (< 6 month
) hebrew-y2 hebrew-y1
))
728 (let ((date (calendar-gregorian-from-absolute
729 (calendar-absolute-from-hebrew
730 (list month day year
)))))
731 (if (calendar-date-is-visible-p date
)
732 (mark-visible-calendar-date date
)))))))
733 ;; Not one of the simple cases--check all visible dates for match.
734 ;; Actually, the following code takes care of ALL of the cases, but
735 ;; it's much too slow to be used for the simple (common) cases.
736 (let ((m displayed-month
)
740 (increment-calendar-month m y -
1)
742 (calendar-absolute-from-gregorian
744 (increment-calendar-month m y
2)
746 (calendar-absolute-from-gregorian
747 (list m
(calendar-last-day-of-month m y
) y
)))
748 (calendar-for-loop date from first-date to last-date do
749 (let* ((h-date (calendar-hebrew-from-absolute date
))
750 (h-month (extract-calendar-month h-date
))
751 (h-day (extract-calendar-day h-date
))
752 (h-year (extract-calendar-year h-date
)))
753 (and (or (zerop month
)
759 (mark-visible-calendar-date
760 (calendar-gregorian-from-absolute date
)))))))))
762 (defun insert-hebrew-diary-entry (arg)
763 "Insert a diary entry.
764 For the Hebrew date corresponding to the date indicated by point.
765 Prefix arg will make the entry nonmarking."
767 (let* ((calendar-month-name-array
768 calendar-hebrew-month-name-array-leap-year
))
771 hebrew-diary-entry-symbol
772 (calendar-date-string
773 (calendar-hebrew-from-absolute
774 (calendar-absolute-from-gregorian
775 (calendar-cursor-to-date t
)))
779 (defun insert-monthly-hebrew-diary-entry (arg)
780 "Insert a monthly diary entry.
781 For the day of the Hebrew month corresponding to the date indicated by point.
782 Prefix arg will make the entry nonmarking."
784 (let* ((calendar-date-display-form
785 (if european-calendar-style
'(day " * ") '("* " day
)))
786 (calendar-month-name-array
787 calendar-hebrew-month-name-array-leap-year
))
790 hebrew-diary-entry-symbol
791 (calendar-date-string
792 (calendar-hebrew-from-absolute
793 (calendar-absolute-from-gregorian
794 (calendar-cursor-to-date t
)))))
797 (defun insert-yearly-hebrew-diary-entry (arg)
798 "Insert an annual diary entry.
799 For the day of the Hebrew year corresponding to the date indicated by point.
800 Prefix arg will make the entry nonmarking."
802 (let* ((calendar-date-display-form
803 (if european-calendar-style
805 '(monthname " " day
)))
806 (calendar-month-name-array
807 calendar-hebrew-month-name-array-leap-year
))
810 hebrew-diary-entry-symbol
811 (calendar-date-string
812 (calendar-hebrew-from-absolute
813 (calendar-absolute-from-gregorian
814 (calendar-cursor-to-date t
)))))
818 (defun list-yahrzeit-dates (death-date start-year end-year
)
819 "List Yahrzeit dates for *Gregorian* DEATH-DATE from START-YEAR to END-YEAR.
820 When called interactively from the calendar window, the date of death is taken
821 from the cursor position."
824 (if (equal (current-buffer) (get-buffer calendar-buffer
))
825 (calendar-cursor-to-date)
826 (let* ((today (calendar-current-date))
828 "Year of death (>0): "
829 '(lambda (x) (> x
0))
830 (int-to-string (extract-calendar-year today
))))
831 (month-array calendar-month-name-array
)
832 (completion-ignore-case t
)
836 "Month of death (name): "
837 (mapcar 'list
(append month-array nil
))
840 month-array
1 'capitalize
))))
841 (last (calendar-last-day-of-month month year
))
843 (format "Day of death (1-%d): " last
)
844 '(lambda (x) (and (< 0 x
) (<= x last
))))))
845 (list month day year
))))
846 (death-year (extract-calendar-year death-date
))
847 (start-year (calendar-read
848 (format "Starting year of Yahrzeit table (>%d): "
850 '(lambda (x) (> x death-year
))
851 (int-to-string (1+ death-year
))))
852 (end-year (calendar-read
853 (format "Ending year of Yahrzeit table (>=%d): "
855 '(lambda (x) (>= x start-year
)))))
856 (list death-date start-year end-year
)))
857 (message "Computing yahrzeits...")
858 (let* ((yahrzeit-buffer "*Yahrzeits*")
859 (h-date (calendar-hebrew-from-absolute
860 (calendar-absolute-from-gregorian death-date
)))
861 (h-month (extract-calendar-month h-date
))
862 (h-day (extract-calendar-day h-date
))
863 (h-year (extract-calendar-year h-date
)))
864 (set-buffer (get-buffer-create yahrzeit-buffer
))
865 (setq buffer-read-only nil
)
866 (calendar-set-mode-line
867 (format "Yahrzeit dates for %s = %s"
868 (calendar-date-string death-date
)
869 (let ((calendar-month-name-array
870 (if (hebrew-calendar-leap-year-p h-year
)
871 calendar-hebrew-month-name-array-leap-year
872 calendar-hebrew-month-name-array-common-year
)))
873 (calendar-date-string h-date nil t
))))
875 (goto-char (point-min))
876 (calendar-for-loop i from start-year to end-year do
878 (calendar-date-string
879 (calendar-gregorian-from-absolute
880 (hebrew-calendar-yahrzeit
882 (extract-calendar-year
883 (calendar-hebrew-from-absolute
884 (calendar-absolute-from-gregorian (list 1 1 i
))))))) "\n"))
885 (goto-char (point-min))
886 (set-buffer-modified-p nil
)
887 (setq buffer-read-only t
)
888 (display-buffer yahrzeit-buffer
)
889 (message "Computing yahrzeits...done")))
891 (defun diary-hebrew-date ()
892 "Hebrew calendar equivalent of date diary entry."
893 (format "Hebrew date (until sunset): %s" (calendar-hebrew-date-string date
)))
896 "Omer count diary entry.
897 Entry applies if date is within 50 days after Passover."
899 (calendar-absolute-from-hebrew
900 (list 1 15 (+ (extract-calendar-year date
) 3760))))
901 (omer (- (calendar-absolute-from-gregorian date
) passover
))
904 (if (and (> omer
0) (< omer
50))
905 (format "Day %d%s of the omer (until sunset)"
909 (format ", that is, %d week%s%s"
911 (if (= week
1) "" "s")
914 (format " and %d day%s"
915 day
(if (= day
1) "" "s")))))))))
917 (defun diary-yahrzeit (death-month death-day death-year
)
918 "Yahrzeit diary entry--entry applies if date is yahrzeit or the day before.
919 Parameters are DEATH-MONTH, DEATH-DAY, DEATH-YEAR; the diary entry is assumed
920 to be the name of the person. Date of death is on the *civil* calendar;
921 although the date of death is specified by the civil calendar, the proper
922 Hebrew calendar yahrzeit is determined. If `european-calendar-style' is t, the
923 order of the parameters is changed to DEATH-DAY, DEATH-MONTH, DEATH-YEAR."
924 (let* ((h-date (calendar-hebrew-from-absolute
925 (calendar-absolute-from-gregorian
926 (if european-calendar-style
927 (list death-day death-month death-year
)
928 (list death-month death-day death-year
)))))
929 (h-month (extract-calendar-month h-date
))
930 (h-day (extract-calendar-day h-date
))
931 (h-year (extract-calendar-year h-date
))
932 (d (calendar-absolute-from-gregorian date
))
933 (yr (extract-calendar-year (calendar-hebrew-from-absolute d
)))
935 (y (hebrew-calendar-yahrzeit h-date yr
)))
936 (if (and (> diff
0) (or (= y d
) (= y
(1+ d
))))
937 (format "Yahrzeit of %s%s: %d%s anniversary"
939 (if (= y d
) "" " (evening)")
941 (cond ((= (% diff
10) 1) "st")
942 ((= (% diff
10) 2) "nd")
943 ((= (% diff
10) 3) "rd")
946 (defun diary-rosh-hodesh ()
947 "Rosh Hodesh diary entry.
948 Entry applies if date is Rosh Hodesh, the day before, or the Saturday before."
949 (let* ((d (calendar-absolute-from-gregorian date
))
950 (h-date (calendar-hebrew-from-absolute d
))
951 (h-month (extract-calendar-month h-date
))
952 (h-day (extract-calendar-day h-date
))
953 (h-year (extract-calendar-year h-date
))
954 (leap-year (hebrew-calendar-leap-year-p h-year
))
955 (last-day (hebrew-calendar-last-day-of-month h-month h-year
))
958 calendar-hebrew-month-name-array-leap-year
959 calendar-hebrew-month-name-array-common-year
))
960 (this-month (aref h-month-names
(1- h-month
)))
961 (h-yesterday (extract-calendar-day
962 (calendar-hebrew-from-absolute (1- d
)))))
963 (if (or (= h-day
30) (and (= h-day
1) (/= h-month
7)))
969 ;; next month must be in the same year since this
970 ;; month can't be the last month of the year since
972 (aref h-month-names h-month
))
973 (if (= h-yesterday
30)
974 (format "%s (second day)" this-month
)
976 (if (= (% d
7) 6);; Saturday--check for Shabbat Mevarhim
977 (cond ((and (> h-day
22) (/= h-month
6) (= 29 last-day
))
978 (format "Mevarhim Rosh Hodesh %s (%s)"
981 (hebrew-calendar-last-month-of-year
984 (aref calendar-day-name-array
(- 29 h-day
))))
985 ((and (< h-day
30) (> h-day
22) (= 30 last-day
))
986 (format "Mevarhim Rosh Hodesh %s (%s-%s)"
987 (aref h-month-names h-month
)
990 (aref calendar-day-name-array
(- 29 h-day
)))
991 (aref calendar-day-name-array
992 (%
(- 30 h-day
) 7)))))
993 (if (and (= h-day
29) (/= h-month
6))
994 (format "Erev Rosh Hodesh %s"
997 (hebrew-calendar-last-month-of-year
1001 (defun diary-parasha ()
1002 "Parasha diary entry--entry applies if date is a Saturday."
1003 (let ((d (calendar-absolute-from-gregorian date
)))
1004 (if (= (% d
7) 6);; Saturday
1006 ((h-year (extract-calendar-year
1007 (calendar-hebrew-from-absolute d
)))
1009 (calendar-absolute-from-hebrew (list 7 1 h-year
)))
1011 (calendar-absolute-from-hebrew (list 1 15 h-year
)))
1013 (aref calendar-day-name-array
(% rosh-hashanah
7)))
1015 (aref calendar-day-name-array
(% passover
7)))
1016 (long-h (hebrew-calendar-long-heshvan-p h-year
))
1017 (short-k (hebrew-calendar-short-kislev-p h-year
))
1018 (type (cond ((and long-h
(not short-k
)) "complete")
1019 ((and (not long-h
) short-k
) "incomplete")
1023 (intern (format "hebrew-calendar-year-%s-%s-%s";; keviah
1024 rosh-hashanah-day type passover-day
))))
1025 (first-saturday;; of Hebrew year
1026 (calendar-dayname-on-or-before 6 (+ 6 rosh-hashanah
)))
1027 (saturday;; which Saturday of the Hebrew year
1028 (/ (- d first-saturday
) 7))
1029 (parasha (aref year-format saturday
)))
1033 (if (listp parasha
);; Israel differs from diaspora
1035 (format "%s (diaspora), %s (Israel)"
1036 (hebrew-calendar-parasha-name (car parasha
))
1037 (hebrew-calendar-parasha-name (cdr parasha
)))
1038 (format "%s (Israel)"
1039 (hebrew-calendar-parasha-name (cdr parasha
))))
1040 (hebrew-calendar-parasha-name parasha
))))))))
1042 (defvar hebrew-calendar-parashiot-names
1043 ["Bereshith" "Noah" "Lech L'cha" "Vayera" "Hayei Sarah" "Toledoth"
1044 "Vayetze" "Vayishlah" "Vayeshev" "Mikketz" "Vayiggash" "Vayhi"
1045 "Shemoth" "Vaera" "Bo" "Beshallah" "Yithro" "Mishpatim"
1046 "Terumah" "Tetzavveh" "Ki Tissa" "Vayakhel" "Pekudei" "Vayikra"
1047 "Tzav" "Shemini" "Tazria" "Metzora" "Aharei Moth" "Kedoshim"
1048 "Emor" "Behar" "Behukkotai" "Bemidbar" "Naso" "Behaalot'cha"
1049 "Shelah L'cha" "Korah" "Hukkath" "Balak" "Pinhas" "Mattoth"
1050 "Masei" "Devarim" "Vaethanan" "Ekev" "Reeh" "Shofetim"
1051 "Ki Tetze" "Ki Tavo" "Nitzavim" "Vayelech" "Haazinu"]
1052 "The names of the parashiot in the Torah.")
1054 ;; The seven ordinary year types (keviot)
1056 (defconst hebrew-calendar-year-Saturday-incomplete-Sunday
1057 [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]
1058 23 24 nil
25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42]
1059 43 44 45 46 47 48 49 50]
1060 "The structure of the parashiot.
1061 Hebrew year starts on Saturday, is `incomplete' (Heshvan and Kislev each have
1062 29 days), and has Passover start on Sunday.")
1064 (defconst hebrew-calendar-year-Saturday-complete-Tuesday
1065 [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]
1066 23 24 nil
25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42]
1067 43 44 45 46 47 48 49 [50 51]]
1068 "The structure of the parashiot.
1069 Hebrew year that starts on Saturday, is `complete' (Heshvan and Kislev each
1070 have 30 days), and has Passover start on Tuesday.")
1072 (defconst hebrew-calendar-year-Monday-incomplete-Tuesday
1073 [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]
1074 23 24 nil
25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42]
1075 43 44 45 46 47 48 49 [50 51]]
1076 "The structure of the parashiot.
1077 Hebrew year that starts on Monday, is `incomplete' (Heshvan and Kislev each
1078 have 29 days), and has Passover start on Tuesday.")
1080 (defconst hebrew-calendar-year-Monday-complete-Thursday
1081 [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]
1082 23 24 nil
25 [26 27] [28 29] 30 [31 32] 33 (nil .
34) (34 .
35) (35 .
36)
1083 (36 .
37) (37 .
38) ([38 39] .
39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
1084 "The structure of the parashiot.
1085 Hebrew year that starts on Monday, is `complete' (Heshvan and Kislev each have
1086 30 days), and has Passover start on Thursday.")
1088 (defconst hebrew-calendar-year-Tuesday-regular-Thursday
1089 [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]
1090 23 24 nil
25 [26 27] [28 29] 30 [31 32] 33 (nil .
34) (34 .
35) (35 .
36)
1091 (36 .
37) (37 .
38) ([38 39] .
39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
1092 "The structure of the parashiot.
1093 Hebrew year that starts on Tuesday, is `regular' (Heshvan has 29 days and
1094 Kislev has 30 days), and has Passover start on Thursday.")
1096 (defconst hebrew-calendar-year-Thursday-regular-Saturday
1097 [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
1098 24 nil
(nil .
25) (25 .
[26 27]) ([26 27] .
[28 29]) ([28 29] .
30)
1099 (30 .
31) ([31 32] .
32) 33 34 35 36 37 38 39 40 [41 42] 43 44 45 46 47 48
1101 "The structure of the parashiot.
1102 Hebrew year that starts on Thursday, is `regular' (Heshvan has 29 days and
1103 Kislev has 30 days), and has Passover start on Saturday.")
1105 (defconst hebrew-calendar-year-Thursday-complete-Sunday
1106 [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
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]
1109 "The structure of the parashiot.
1110 Hebrew year that starts on Thursday, is `complete' (Heshvan and Kislev each
1111 have 30 days), and has Passover start on Sunday.")
1113 ;; The seven leap year types (keviot)
1115 (defconst hebrew-calendar-year-Saturday-incomplete-Tuesday
1116 [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
1117 23 24 25 26 27 nil
28 29 30 31 32 33 34 35 36 37 38 39 40 [41 42]
1118 43 44 45 46 47 48 49 [50 51]]
1119 "The structure of the parashiot.
1120 Hebrew year that starts on Saturday, is `incomplete' (Heshvan and Kislev each
1121 have 29 days), and has Passover start on Tuesday.")
1123 (defconst hebrew-calendar-year-Saturday-complete-Thursday
1124 [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
1125 23 24 25 26 27 nil
28 29 30 31 32 33 (nil .
34) (34 .
35) (35 .
36)
1126 (36 .
37) (37 .
38) ([38 39] .
39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
1127 "The structure of the parashiot.
1128 Hebrew year that starts on Saturday, is `complete' (Heshvan and Kislev each
1129 have 30 days), and has Passover start on Thursday.")
1131 (defconst hebrew-calendar-year-Monday-incomplete-Thursday
1132 [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
1133 23 24 25 26 27 nil
28 29 30 31 32 33 (nil .
34) (34 .
35) (35 .
36)
1134 (36 .
37) (37 .
38) ([38 39] .
39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
1135 "The structure of the parashiot.
1136 Hebrew year that starts on Monday, is `incomplete' (Heshvan and Kislev each
1137 have 29 days), and has Passover start on Thursday.")
1139 (defconst hebrew-calendar-year-Monday-complete-Saturday
1140 [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
1141 23 24 25 26 27 nil
(nil .
28) (28 .
29) (29 .
30) (30 .
31) (31 .
32)
1142 (32 .
33) (33 .
34) (34 .
35) (35 .
36) (36 .
37) (37 .
38) (38 .
39)
1143 (39 .
40) (40 .
41) ([41 42] .
42) 43 44 45 46 47 48 49 50]
1144 "The structure of the parashiot.
1145 Hebrew year that starts on Monday, is `complete' (Heshvan and Kislev each have
1146 30 days), and has Passover start on Saturday.")
1148 (defconst hebrew-calendar-year-Tuesday-regular-Saturday
1149 [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
1150 23 24 25 26 27 nil
(nil .
28) (28 .
29) (29 .
30) (30 .
31) (31 .
32)
1151 (32 .
33) (33 .
34) (34 .
35) (35 .
36) (36 .
37) (37 .
38) (38 .
39)
1152 (39 .
40) (40 .
41) ([41 42] .
42) 43 44 45 46 47 48 49 50]
1153 "The structure of the parashiot.
1154 Hebrew year that starts on Tuesday, is `regular' (Heshvan has 29 days and
1155 Kislev has 30 days), and has Passover start on Saturday.")
1157 (defconst hebrew-calendar-year-Thursday-incomplete-Sunday
1158 [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
1159 23 24 25 26 27 28 nil
29 30 31 32 33 34 35 36 37 38 39 40 41 42
1160 43 44 45 46 47 48 49 50]
1161 "The structure of the parashiot.
1162 Hebrew year that starts on Thursday, is `incomplete' (Heshvan and Kislev both
1163 have 29 days), and has Passover start on Sunday.")
1165 (defconst hebrew-calendar-year-Thursday-complete-Tuesday
1166 [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
1167 23 24 25 26 27 28 nil
29 30 31 32 33 34 35 36 37 38 39 40 41 42
1168 43 44 45 46 47 48 49 [50 51]]
1169 "The structure of the parashiot.
1170 Hebrew year that starts on Thursday, is `complete' (Heshvan and Kislev both
1171 have 30 days), and has Passover start on Tuesday.")
1173 (defun hebrew-calendar-parasha-name (p)
1174 "Name(s) corresponding to parasha P."
1175 (if (arrayp p
);; combined parasha
1177 (aref hebrew-calendar-parashiot-names
(aref p
0))
1178 (aref hebrew-calendar-parashiot-names
(aref p
1)))
1179 (aref hebrew-calendar-parashiot-names p
)))
1181 (provide 'cal-hebrew
)
1183 ;;; cal-hebrew.el ends here