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- ;;; cal-hebrew.el --- calendar functions for the Hebrew calendar.
-
- ;; Copyright (C) 1995 Free Software Foundation, Inc.
-
- ;; Author: Nachum Dershowitz <nachum@cs.uiuc.edu>
- ;; Edward M. Reingold <reingold@cs.uiuc.edu>
- ;; Keywords: calendar
- ;; Human-Keywords: Hebrew calendar, calendar, diary
-
- ;; This file is part of GNU Emacs.
-
- ;; GNU Emacs is free software; you can redistribute it and/or modify
- ;; it under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation; either version 2, or (at your option)
- ;; any later version.
-
- ;; GNU Emacs is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ;; GNU General Public License for more details.
-
- ;; You should have received a copy of the GNU General Public License
- ;; along with GNU Emacs; see the file COPYING. If not, write to the
- ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- ;; Boston, MA 02111-1307, USA.
-
- ;;; Commentary:
-
- ;; This collection of functions implements the features of calendar.el and
- ;; diary.el that deal with the Hebrew calendar.
-
- ;; Comments, corrections, and improvements should be sent to
- ;; Edward M. Reingold Department of Computer Science
- ;; (217) 333-6733 University of Illinois at Urbana-Champaign
- ;; reingold@cs.uiuc.edu 1304 West Springfield Avenue
- ;; Urbana, Illinois 61801
-
- ;;; Code:
-
- (require 'calendar)
-
- (defun calendar-hebrew-from-absolute (date)
- "Compute the Hebrew date (month day year) corresponding to absolute DATE.
- The absolute date is the number of days elapsed since the (imaginary)
- Gregorian date Sunday, December 31, 1 BC."
- (let* ((greg-date (calendar-gregorian-from-absolute date))
- (month (aref [9 10 11 12 1 2 3 4 7 7 7 8]
- (1- (extract-calendar-month greg-date))))
- (day)
- (year (+ 3760 (extract-calendar-year greg-date))))
- (while (>= date (calendar-absolute-from-hebrew (list 7 1 (1+ year))))
- (setq year (1+ year)))
- (let ((length (hebrew-calendar-last-month-of-year year)))
- (while (> date
- (calendar-absolute-from-hebrew
- (list month
- (hebrew-calendar-last-day-of-month month year)
- year)))
- (setq month (1+ (% month length)))))
- (setq day (1+
- (- date (calendar-absolute-from-hebrew (list month 1 year)))))
- (list month day year)))
-
- (defun hebrew-calendar-leap-year-p (year)
- "t if YEAR is a Hebrew calendar leap year."
- (< (% (1+ (* 7 year)) 19) 7))
-
- (defun hebrew-calendar-last-month-of-year (year)
- "The last month of the Hebrew calendar YEAR."
- (if (hebrew-calendar-leap-year-p year)
- 13
- 12))
-
- (defun hebrew-calendar-last-day-of-month (month year)
- "The last day of MONTH in YEAR."
- (if (or (memq month (list 2 4 6 10 13))
- (and (= month 12) (not (hebrew-calendar-leap-year-p year)))
- (and (= month 8) (not (hebrew-calendar-long-heshvan-p year)))
- (and (= month 9) (hebrew-calendar-short-kislev-p year)))
- 29
- 30))
-
- (defun hebrew-calendar-elapsed-days (year)
- "Days from Sun. prior to start of Hebrew calendar to mean conjunction of Tishri of Hebrew YEAR."
- (let* ((months-elapsed
- (+ (* 235 (/ (1- year) 19));; Months in complete cycles so far.
- (* 12 (% (1- year) 19)) ;; Regular months in this cycle
- (/ (1+ (* 7 (% (1- year) 19))) 19)));; Leap months this cycle
- (parts-elapsed (+ 204 (* 793 (% months-elapsed 1080))))
- (hours-elapsed (+ 5
- (* 12 months-elapsed)
- (* 793 (/ months-elapsed 1080))
- (/ parts-elapsed 1080)))
- (parts ;; Conjunction parts
- (+ (* 1080 (% hours-elapsed 24)) (% parts-elapsed 1080)))
- (day ;; Conjunction day
- (+ 1 (* 29 months-elapsed) (/ hours-elapsed 24)))
- (alternative-day
- (if (or (>= parts 19440) ;; If the new moon is at or after midday,
- (and (= (% day 7) 2);; ...or is on a Tuesday...
- (>= parts 9924) ;; at 9 hours, 204 parts or later...
- (not (hebrew-calendar-leap-year-p year)));; of a
- ;; common year,
- (and (= (% day 7) 1);; ...or is on a Monday...
- (>= parts 16789) ;; at 15 hours, 589 parts or later...
- (hebrew-calendar-leap-year-p (1- year))));; at the end
- ;; of a leap year
- ;; Then postpone Rosh HaShanah one day
- (1+ day)
- ;; Else
- day)))
- (if ;; If Rosh HaShanah would occur on Sunday, Wednesday, or Friday
- (memq (% alternative-day 7) (list 0 3 5))
- ;; Then postpone it one (more) day and return
- (1+ alternative-day)
- ;; Else return
- alternative-day)))
-
- (defun hebrew-calendar-days-in-year (year)
- "Number of days in Hebrew YEAR."
- (- (hebrew-calendar-elapsed-days (1+ year))
- (hebrew-calendar-elapsed-days year)))
-
- (defun hebrew-calendar-long-heshvan-p (year)
- "t if Heshvan is long in Hebrew YEAR."
- (= (% (hebrew-calendar-days-in-year year) 10) 5))
-
- (defun hebrew-calendar-short-kislev-p (year)
- "t if Kislev is short in Hebrew YEAR."
- (= (% (hebrew-calendar-days-in-year year) 10) 3))
-
- (defun calendar-absolute-from-hebrew (date)
- "Absolute date of Hebrew DATE.
- The absolute date is the number of days elapsed since the (imaginary)
- Gregorian date Sunday, December 31, 1 BC."
- (let* ((month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date)))
- (+ day ;; Days so far this month.
- (if (< month 7);; before Tishri
- ;; Then add days in prior months this year before and after Nisan
- (+ (calendar-sum
- m 7 (<= m (hebrew-calendar-last-month-of-year year))
- (hebrew-calendar-last-day-of-month m year))
- (calendar-sum
- m 1 (< m month)
- (hebrew-calendar-last-day-of-month m year)))
- ;; Else add days in prior months this year
- (calendar-sum
- m 7 (< m month)
- (hebrew-calendar-last-day-of-month m year)))
- (hebrew-calendar-elapsed-days year);; Days in prior years.
- -1373429))) ;; Days elapsed before absolute date 1.
-
- (defvar calendar-hebrew-month-name-array-common-year
- ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri"
- "Heshvan" "Kislev" "Teveth" "Shevat" "Adar"])
-
- (defvar calendar-hebrew-month-name-array-leap-year
- ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri"
- "Heshvan" "Kislev" "Teveth" "Shevat" "Adar I" "Adar II"])
-
- (defun calendar-hebrew-date-string (&optional date)
- "String of Hebrew date before sunset of Gregorian DATE.
- Defaults to today's date if DATE is not given.
- Driven by the variable `calendar-date-display-form'."
- (let* ((hebrew-date (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (or date (calendar-current-date)))))
- (calendar-month-name-array
- (if (hebrew-calendar-leap-year-p (extract-calendar-year hebrew-date))
- calendar-hebrew-month-name-array-leap-year
- calendar-hebrew-month-name-array-common-year)))
- (calendar-date-string hebrew-date nil t)))
-
- (defun calendar-print-hebrew-date ()
- "Show the Hebrew calendar equivalent of the date under the cursor."
- (interactive)
- (message "Hebrew date (until sunset): %s"
- (calendar-hebrew-date-string (calendar-cursor-to-date t))))
-
- (defun hebrew-calendar-yahrzeit (death-date year)
- "Absolute date of the anniversary of Hebrew DEATH-DATE in Hebrew YEAR."
- (let* ((death-day (extract-calendar-day death-date))
- (death-month (extract-calendar-month death-date))
- (death-year (extract-calendar-year death-date)))
- (cond
- ;; If it's Heshvan 30 it depends on the first anniversary; if
- ;; that was not Heshvan 30, use the day before Kislev 1.
- ((and (= death-month 8)
- (= death-day 30)
- (not (hebrew-calendar-long-heshvan-p (1+ death-year))))
- (1- (calendar-absolute-from-hebrew (list 9 1 year))))
- ;; If it's Kislev 30 it depends on the first anniversary; if
- ;; that was not Kislev 30, use the day before Teveth 1.
- ((and (= death-month 9)
- (= death-day 30)
- (hebrew-calendar-short-kislev-p (1+ death-year)))
- (1- (calendar-absolute-from-hebrew (list 10 1 year))))
- ;; If it's Adar II, use the same day in last month of
- ;; year (Adar or Adar II).
- ((= death-month 13)
- (calendar-absolute-from-hebrew
- (list (hebrew-calendar-last-month-of-year year) death-day year)))
- ;; If it's the 30th in Adar I and year is not a leap year
- ;; (so Adar has only 29 days), use the last day in Shevat.
- ((and (= death-day 30)
- (= death-month 12)
- (not (hebrew-calendar-leap-year-p year)))
- (calendar-absolute-from-hebrew (list 11 30 year)))
- ;; In all other cases, use the normal anniversary of the date of death.
- (t (calendar-absolute-from-hebrew
- (list death-month death-day year))))))
-
- (defun calendar-goto-hebrew-date (date &optional noecho)
- "Move cursor to Hebrew DATE; echo Hebrew date unless NOECHO is t."
- (interactive
- (let* ((today (calendar-current-date))
- (year (calendar-read
- "Hebrew calendar year (>3760): "
- '(lambda (x) (> x 3760))
- (int-to-string
- (extract-calendar-year
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian today))))))
- (month-array (if (hebrew-calendar-leap-year-p year)
- calendar-hebrew-month-name-array-leap-year
- calendar-hebrew-month-name-array-common-year))
- (completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
- (completing-read
- "Hebrew calendar month name: "
- (mapcar 'list (append month-array nil))
- (if (= year 3761)
- '(lambda (x)
- (let ((m (cdr
- (assoc
- (car x)
- (calendar-make-alist
- month-array)))))
- (< 0
- (calendar-absolute-from-hebrew
- (list m
- (hebrew-calendar-last-day-of-month
- m year)
- year))))))
-
- t))
- (calendar-make-alist month-array 1 'capitalize))))
- (last (hebrew-calendar-last-day-of-month month year))
- (first (if (and (= year 3761) (= month 10))
- 18 1))
- (day (calendar-read
- (format "Hebrew calendar day (%d-%d): "
- first last)
- '(lambda (x) (and (<= first x) (<= x last))))))
- (list (list month day year))))
- (calendar-goto-date (calendar-gregorian-from-absolute
- (calendar-absolute-from-hebrew date)))
- (or noecho (calendar-print-hebrew-date)))
-
- (defun holiday-hebrew (month day string)
- "Holiday on MONTH, DAY (Hebrew) called STRING.
- If MONTH, DAY (Hebrew) is visible, the value returned is corresponding
- Gregorian date in the form of the list (((month day year) STRING)). Returns
- nil if it is not visible in the current calendar window."
- (if (memq displayed-month;; This test is only to speed things up a bit;
- (list ;; it works fine without the test too.
- (if (< 11 month) (- month 11) (+ month 1))
- (if (< 10 month) (- month 10) (+ month 2))
- (if (< 9 month) (- month 9) (+ month 3))
- (if (< 8 month) (- month 8) (+ month 4))
- (if (< 7 month) (- month 7) (+ month 5))))
- (let ((m1 displayed-month)
- (y1 displayed-year)
- (m2 displayed-month)
- (y2 displayed-year)
- (year))
- (increment-calendar-month m1 y1 -1)
- (increment-calendar-month m2 y2 1)
- (let* ((start-date (calendar-absolute-from-gregorian
- (list m1 1 y1)))
- (end-date (calendar-absolute-from-gregorian
- (list m2 (calendar-last-day-of-month m2 y2) y2)))
- (hebrew-start (calendar-hebrew-from-absolute start-date))
- (hebrew-end (calendar-hebrew-from-absolute end-date))
- (hebrew-y1 (extract-calendar-year hebrew-start))
- (hebrew-y2 (extract-calendar-year hebrew-end)))
- (setq year (if (< 6 month) hebrew-y2 hebrew-y1))
- (let ((date (calendar-gregorian-from-absolute
- (calendar-absolute-from-hebrew
- (list month day year)))))
- (if (calendar-date-is-visible-p date)
- (list (list date string))))))))
-
- (defun holiday-rosh-hashanah-etc ()
- "List of dates related to Rosh Hashanah, as visible in calendar window."
- (if (or (< displayed-month 8)
- (> displayed-month 11))
- nil;; None of the dates is visible
- (let* ((abs-r-h (calendar-absolute-from-hebrew
- (list 7 1 (+ displayed-year 3761))))
- (mandatory
- (list
- (list (calendar-gregorian-from-absolute abs-r-h)
- (format "Rosh HaShanah %d" (+ 3761 displayed-year)))
- (list (calendar-gregorian-from-absolute (+ abs-r-h 9))
- "Yom Kippur")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 14))
- "Sukkot")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 21))
- "Shemini Atzeret")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 22))
- "Simchat Torah")))
- (optional
- (list
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 (- abs-r-h 4)))
- "Selichot (night)")
- (list (calendar-gregorian-from-absolute (1- abs-r-h))
- "Erev Rosh HaShanah")
- (list (calendar-gregorian-from-absolute (1+ abs-r-h))
- "Rosh HaShanah (second day)")
- (list (calendar-gregorian-from-absolute
- (if (= (% abs-r-h 7) 4) (+ abs-r-h 3) (+ abs-r-h 2)))
- "Tzom Gedaliah")
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 (+ 7 abs-r-h)))
- "Shabbat Shuvah")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 8))
- "Erev Yom Kippur")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 13))
- "Erev Sukkot")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 15))
- "Sukkot (second day)")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 16))
- "Hol Hamoed Sukkot (first day)")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 17))
- "Hol Hamoed Sukkot (second day)")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 18))
- "Hol Hamoed Sukkot (third day)")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 19))
- "Hol Hamoed Sukkot (fourth day)")
- (list (calendar-gregorian-from-absolute (+ abs-r-h 20))
- "Hoshannah Rabbah")))
- (output-list
- (filter-visible-calendar-holidays mandatory)))
- (if all-hebrew-calendar-holidays
- (setq output-list
- (append
- (filter-visible-calendar-holidays optional)
- output-list)))
- output-list)))
-
- (defun holiday-hanukkah ()
- "List of dates related to Hanukkah, as visible in calendar window."
- (if (memq displayed-month;; This test is only to speed things up a bit;
- '(10 11 12 1 2));; it works fine without the test too.
- (let ((m displayed-month)
- (y displayed-year))
- (increment-calendar-month m y 1)
- (let* ((h-y (extract-calendar-year
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (list m (calendar-last-day-of-month m y) y)))))
- (abs-h (calendar-absolute-from-hebrew (list 9 25 h-y))))
- (filter-visible-calendar-holidays
- (list
- (list (calendar-gregorian-from-absolute (1- abs-h))
- "Erev Hanukkah")
- (list (calendar-gregorian-from-absolute abs-h)
- "Hanukkah (first day)")
- (list (calendar-gregorian-from-absolute (1+ abs-h))
- "Hanukkah (second day)")
- (list (calendar-gregorian-from-absolute (+ abs-h 2))
- "Hanukkah (third day)")
- (list (calendar-gregorian-from-absolute (+ abs-h 3))
- "Hanukkah (fourth day)")
- (list (calendar-gregorian-from-absolute (+ abs-h 4))
- "Hanukkah (fifth day)")
- (list (calendar-gregorian-from-absolute (+ abs-h 5))
- "Hanukkah (sixth day)")
- (list (calendar-gregorian-from-absolute (+ abs-h 6))
- "Hanukkah (seventh day)")
- (list (calendar-gregorian-from-absolute (+ abs-h 7))
- "Hanukkah (eighth day)")))))))
-
- (defun holiday-passover-etc ()
- "List of dates related to Passover, as visible in calendar window."
- (if (< 7 displayed-month)
- nil;; None of the dates is visible
- (let* ((abs-p (calendar-absolute-from-hebrew
- (list 1 15 (+ displayed-year 3760))))
- (mandatory
- (list
- (list (calendar-gregorian-from-absolute abs-p)
- "Passover")
- (list (calendar-gregorian-from-absolute (+ abs-p 50))
- "Shavuot")))
- (optional
- (list
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 (- abs-p 43)))
- "Shabbat Shekalim")
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 (- abs-p 30)))
- "Shabbat Zachor")
- (list (calendar-gregorian-from-absolute
- (if (= (% abs-p 7) 2) (- abs-p 33) (- abs-p 31)))
- "Fast of Esther")
- (list (calendar-gregorian-from-absolute (- abs-p 31))
- "Erev Purim")
- (list (calendar-gregorian-from-absolute (- abs-p 30))
- "Purim")
- (list (calendar-gregorian-from-absolute
- (if (zerop (% abs-p 7)) (- abs-p 28) (- abs-p 29)))
- "Shushan Purim")
- (list (calendar-gregorian-from-absolute
- (- (calendar-dayname-on-or-before 6 (- abs-p 14)) 7))
- "Shabbat Parah")
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 (- abs-p 14)))
- "Shabbat HaHodesh")
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 (1- abs-p)))
- "Shabbat HaGadol")
- (list (calendar-gregorian-from-absolute (1- abs-p))
- "Erev Passover")
- (list (calendar-gregorian-from-absolute (1+ abs-p))
- "Passover (second day)")
- (list (calendar-gregorian-from-absolute (+ abs-p 2))
- "Hol Hamoed Passover (first day)")
- (list (calendar-gregorian-from-absolute (+ abs-p 3))
- "Hol Hamoed Passover (second day)")
- (list (calendar-gregorian-from-absolute (+ abs-p 4))
- "Hol Hamoed Passover (third day)")
- (list (calendar-gregorian-from-absolute (+ abs-p 5))
- "Hol Hamoed Passover (fourth day)")
- (list (calendar-gregorian-from-absolute (+ abs-p 6))
- "Passover (seventh day)")
- (list (calendar-gregorian-from-absolute (+ abs-p 7))
- "Passover (eighth day)")
- (list (calendar-gregorian-from-absolute (+ abs-p 12))
- "Yom HaShoah")
- (list (calendar-gregorian-from-absolute
- (if (zerop (% abs-p 7))
- (+ abs-p 18)
- (if (= (% abs-p 7) 6)
- (+ abs-p 19)
- (+ abs-p 20))))
- "Yom HaAtzma'ut")
- (list (calendar-gregorian-from-absolute (+ abs-p 33))
- "Lag BaOmer")
- (list (calendar-gregorian-from-absolute (+ abs-p 43))
- "Yom Yerushalim")
- (list (calendar-gregorian-from-absolute (+ abs-p 49))
- "Erev Shavuot")
- (list (calendar-gregorian-from-absolute (+ abs-p 51))
- "Shavuot (second day)")))
- (output-list
- (filter-visible-calendar-holidays mandatory)))
- (if all-hebrew-calendar-holidays
- (setq output-list
- (append
- (filter-visible-calendar-holidays optional)
- output-list)))
- output-list)))
-
- (defun holiday-tisha-b-av-etc ()
- "List of dates around Tisha B'Av, as visible in calendar window."
- (if (or (< displayed-month 5)
- (> displayed-month 9))
- nil;; None of the dates is visible
- (let* ((abs-t-a (calendar-absolute-from-hebrew
- (list 5 9 (+ displayed-year 3760)))))
-
- (filter-visible-calendar-holidays
- (list
- (list (calendar-gregorian-from-absolute
- (if (= (% abs-t-a 7) 6) (- abs-t-a 20) (- abs-t-a 21)))
- "Tzom Tammuz")
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 abs-t-a))
- "Shabbat Hazon")
- (list (calendar-gregorian-from-absolute
- (if (= (% abs-t-a 7) 6) (1+ abs-t-a) abs-t-a))
- "Tisha B'Av")
- (list (calendar-gregorian-from-absolute
- (calendar-dayname-on-or-before 6 (+ abs-t-a 7)))
- "Shabbat Nahamu"))))))
-
- (defun list-hebrew-diary-entries ()
- "Add any Hebrew date entries from the diary file to `diary-entries-list'.
- Hebrew date diary entries must be prefaced by `hebrew-diary-entry-symbol'
- \(normally an `H'). The same diary date forms govern the style of the Hebrew
- calendar entries, except that the Hebrew month names must be spelled in full.
- The Hebrew months are numbered from 1 to 13 with Nisan being 1, 12 being
- Adar I and 13 being Adar II; you must use `Adar I' if you want Adar of a
- common Hebrew year. If a Hebrew date diary entry begins with a
- `diary-nonmarking-symbol', the entry will appear in the diary listing, but will
- not be marked in the calendar. This function is provided for use with the
- `nongregorian-diary-listing-hook'."
- (if (< 0 number)
- (let ((buffer-read-only nil)
- (diary-modified (buffer-modified-p))
- (gdate original-date)
- (mark (regexp-quote diary-nonmarking-symbol)))
- (calendar-for-loop i from 1 to number do
- (let* ((d diary-date-forms)
- (hdate (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian gdate)))
- (month (extract-calendar-month hdate))
- (day (extract-calendar-day hdate))
- (year (extract-calendar-year hdate)))
- (while d
- (let*
- ((date-form (if (equal (car (car d)) 'backup)
- (cdr (car d))
- (car d)))
- (backup (equal (car (car d)) 'backup))
- (dayname
- (concat
- (calendar-day-name gdate) "\\|"
- (substring (calendar-day-name gdate) 0 3) ".?"))
- (calendar-month-name-array
- calendar-hebrew-month-name-array-leap-year)
- (monthname
- (concat
- "\\*\\|"
- (calendar-month-name month)))
- (month (concat "\\*\\|0*" (int-to-string month)))
- (day (concat "\\*\\|0*" (int-to-string day)))
- (year
- (concat
- "\\*\\|0*" (int-to-string year)
- (if abbreviated-calendar-year
- (concat "\\|" (int-to-string (% year 100)))
- "")))
- (regexp
- (concat
- "\\(\\`\\|\^M\\|\n\\)" mark "?"
- (regexp-quote hebrew-diary-entry-symbol)
- "\\("
- (mapconcat 'eval date-form "\\)\\(")
- "\\)"))
- (case-fold-search t))
- (goto-char (point-min))
- (while (re-search-forward regexp nil t)
- (if backup (re-search-backward "\\<" nil t))
- (if (and (or (char-equal (preceding-char) ?\^M)
- (char-equal (preceding-char) ?\n))
- (not (looking-at " \\|\^I")))
- ;; Diary entry that consists only of date.
- (backward-char 1)
- ;; Found a nonempty diary entry--make it visible and
- ;; add it to the list.
- (let ((entry-start (point))
- (date-start))
- (re-search-backward "\^M\\|\n\\|\\`")
- (setq date-start (point))
- (re-search-forward "\^M\\|\n" nil t 2)
- (while (looking-at " \\|\^I")
- (re-search-forward "\^M\\|\n" nil t))
- (backward-char 1)
- (subst-char-in-region date-start (point) ?\^M ?\n t)
- (add-to-diary-list
- gdate (buffer-substring entry-start (point)))))))
- (setq d (cdr d))))
- (setq gdate
- (calendar-gregorian-from-absolute
- (1+ (calendar-absolute-from-gregorian gdate)))))
- (set-buffer-modified-p diary-modified))
- (goto-char (point-min))))
-
- (defun mark-hebrew-diary-entries ()
- "Mark days in the calendar window that have Hebrew date diary entries.
- Each entry in diary-file (or included files) visible in the calendar window
- is marked. Hebrew date entries are prefaced by a hebrew-diary-entry-symbol
- \(normally an `H'). The same diary-date-forms govern the style of the Hebrew
- calendar entries, except that the Hebrew month names must be spelled in full.
- The Hebrew months are numbered from 1 to 13 with Nisan being 1, 12 being
- Adar I and 13 being Adar II; you must use `Adar I' if you want Adar of a
- common Hebrew year. Hebrew date diary entries that begin with a
- diary-nonmarking symbol will not be marked in the calendar. This function
- is provided for use as part of the nongregorian-diary-marking-hook."
- (let ((d diary-date-forms))
- (while d
- (let*
- ((date-form (if (equal (car (car d)) 'backup)
- (cdr (car d))
- (car d)));; ignore 'backup directive
- (dayname (diary-name-pattern calendar-day-name-array))
- (monthname
- (concat
- (diary-name-pattern calendar-hebrew-month-name-array-leap-year t)
- "\\|\\*"))
- (month "[0-9]+\\|\\*")
- (day "[0-9]+\\|\\*")
- (year "[0-9]+\\|\\*")
- (l (length date-form))
- (d-name-pos (- l (length (memq 'dayname date-form))))
- (d-name-pos (if (/= l d-name-pos) (+ 2 d-name-pos)))
- (m-name-pos (- l (length (memq 'monthname date-form))))
- (m-name-pos (if (/= l m-name-pos) (+ 2 m-name-pos)))
- (d-pos (- l (length (memq 'day date-form))))
- (d-pos (if (/= l d-pos) (+ 2 d-pos)))
- (m-pos (- l (length (memq 'month date-form))))
- (m-pos (if (/= l m-pos) (+ 2 m-pos)))
- (y-pos (- l (length (memq 'year date-form))))
- (y-pos (if (/= l y-pos) (+ 2 y-pos)))
- (regexp
- (concat
- "\\(\\`\\|\^M\\|\n\\)"
- (regexp-quote hebrew-diary-entry-symbol)
- "\\("
- (mapconcat 'eval date-form "\\)\\(")
- "\\)"))
- (case-fold-search t))
- (goto-char (point-min))
- (while (re-search-forward regexp nil t)
- (let* ((dd-name
- (if d-name-pos
- (buffer-substring
- (match-beginning d-name-pos)
- (match-end d-name-pos))))
- (mm-name
- (if m-name-pos
- (buffer-substring
- (match-beginning m-name-pos)
- (match-end m-name-pos))))
- (mm (string-to-int
- (if m-pos
- (buffer-substring
- (match-beginning m-pos)
- (match-end m-pos))
- "")))
- (dd (string-to-int
- (if d-pos
- (buffer-substring
- (match-beginning d-pos)
- (match-end d-pos))
- "")))
- (y-str (if y-pos
- (buffer-substring
- (match-beginning y-pos)
- (match-end y-pos))))
- (yy (if (not y-str)
- 0
- (if (and (= (length y-str) 2)
- abbreviated-calendar-year)
- (let* ((current-y
- (extract-calendar-year
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (calendar-current-date)))))
- (y (+ (string-to-int y-str)
- (* 100 (/ current-y 100)))))
- (if (> (- y current-y) 50)
- (- y 100)
- (if (> (- current-y y) 50)
- (+ y 100)
- y)))
- (string-to-int y-str)))))
- (if dd-name
- (mark-calendar-days-named
- (cdr (assoc (capitalize (substring dd-name 0 3))
- (calendar-make-alist
- calendar-day-name-array
- 0
- '(lambda (x) (substring x 0 3))))))
- (if mm-name
- (if (string-equal mm-name "*")
- (setq mm 0)
- (setq
- mm
- (cdr
- (assoc
- (capitalize mm-name)
- (calendar-make-alist
- calendar-hebrew-month-name-array-leap-year))))))
- (mark-hebrew-calendar-date-pattern mm dd yy)))))
- (setq d (cdr d)))))
-
- (defun mark-hebrew-calendar-date-pattern (month day year)
- "Mark dates in calendar window that conform to Hebrew date MONTH/DAY/YEAR.
- A value of 0 in any position is a wildcard."
- (save-excursion
- (set-buffer calendar-buffer)
- (if (and (/= 0 month) (/= 0 day))
- (if (/= 0 year)
- ;; Fully specified Hebrew date.
- (let ((date (calendar-gregorian-from-absolute
- (calendar-absolute-from-hebrew
- (list month day year)))))
- (if (calendar-date-is-visible-p date)
- (mark-visible-calendar-date date)))
- ;; Month and day in any year--this taken from the holiday stuff.
- (if (memq displayed-month;; This test is only to speed things up a
- (list ;; bit; it works fine without the test too.
- (if (< 11 month) (- month 11) (+ month 1))
- (if (< 10 month) (- month 10) (+ month 2))
- (if (< 9 month) (- month 9) (+ month 3))
- (if (< 8 month) (- month 8) (+ month 4))
- (if (< 7 month) (- month 7) (+ month 5))))
- (let ((m1 displayed-month)
- (y1 displayed-year)
- (m2 displayed-month)
- (y2 displayed-year)
- (year))
- (increment-calendar-month m1 y1 -1)
- (increment-calendar-month m2 y2 1)
- (let* ((start-date (calendar-absolute-from-gregorian
- (list m1 1 y1)))
- (end-date (calendar-absolute-from-gregorian
- (list m2
- (calendar-last-day-of-month m2 y2)
- y2)))
- (hebrew-start
- (calendar-hebrew-from-absolute start-date))
- (hebrew-end (calendar-hebrew-from-absolute end-date))
- (hebrew-y1 (extract-calendar-year hebrew-start))
- (hebrew-y2 (extract-calendar-year hebrew-end)))
- (setq year (if (< 6 month) hebrew-y2 hebrew-y1))
- (let ((date (calendar-gregorian-from-absolute
- (calendar-absolute-from-hebrew
- (list month day year)))))
- (if (calendar-date-is-visible-p date)
- (mark-visible-calendar-date date)))))))
- ;; Not one of the simple cases--check all visible dates for match.
- ;; Actually, the following code takes care of ALL of the cases, but
- ;; it's much too slow to be used for the simple (common) cases.
- (let ((m displayed-month)
- (y displayed-year)
- (first-date)
- (last-date))
- (increment-calendar-month m y -1)
- (setq first-date
- (calendar-absolute-from-gregorian
- (list m 1 y)))
- (increment-calendar-month m y 2)
- (setq last-date
- (calendar-absolute-from-gregorian
- (list m (calendar-last-day-of-month m y) y)))
- (calendar-for-loop date from first-date to last-date do
- (let* ((h-date (calendar-hebrew-from-absolute date))
- (h-month (extract-calendar-month h-date))
- (h-day (extract-calendar-day h-date))
- (h-year (extract-calendar-year h-date)))
- (and (or (zerop month)
- (= month h-month))
- (or (zerop day)
- (= day h-day))
- (or (zerop year)
- (= year h-year))
- (mark-visible-calendar-date
- (calendar-gregorian-from-absolute date)))))))))
-
- (defun insert-hebrew-diary-entry (arg)
- "Insert a diary entry.
- For the Hebrew date corresponding to the date indicated by point.
- Prefix arg will make the entry nonmarking."
- (interactive "P")
- (let* ((calendar-month-name-array
- calendar-hebrew-month-name-array-leap-year))
- (make-diary-entry
- (concat
- hebrew-diary-entry-symbol
- (calendar-date-string
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (calendar-cursor-to-date t)))
- nil t))
- arg)))
-
- (defun insert-monthly-hebrew-diary-entry (arg)
- "Insert a monthly diary entry.
- For the day of the Hebrew month corresponding to the date indicated by point.
- Prefix arg will make the entry nonmarking."
- (interactive "P")
- (let* ((calendar-date-display-form
- (if european-calendar-style '(day " * ") '("* " day )))
- (calendar-month-name-array
- calendar-hebrew-month-name-array-leap-year))
- (make-diary-entry
- (concat
- hebrew-diary-entry-symbol
- (calendar-date-string
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (calendar-cursor-to-date t)))))
- arg)))
-
- (defun insert-yearly-hebrew-diary-entry (arg)
- "Insert an annual diary entry.
- For the day of the Hebrew year corresponding to the date indicated by point.
- Prefix arg will make the entry nonmarking."
- (interactive "P")
- (let* ((calendar-date-display-form
- (if european-calendar-style
- '(day " " monthname)
- '(monthname " " day)))
- (calendar-month-name-array
- calendar-hebrew-month-name-array-leap-year))
- (make-diary-entry
- (concat
- hebrew-diary-entry-symbol
- (calendar-date-string
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (calendar-cursor-to-date t)))))
- arg)))
-
- ;;;###autoload
- (defun list-yahrzeit-dates (death-date start-year end-year)
- "List Yahrzeit dates for *Gregorian* DEATH-DATE from START-YEAR to END-YEAR.
- When called interactively from the calendar window, the date of death is taken
- from the cursor position."
- (interactive
- (let* ((death-date
- (if (equal (current-buffer) (get-buffer calendar-buffer))
- (calendar-cursor-to-date)
- (let* ((today (calendar-current-date))
- (year (calendar-read
- "Year of death (>0): "
- '(lambda (x) (> x 0))
- (int-to-string (extract-calendar-year today))))
- (month-array calendar-month-name-array)
- (completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
- (completing-read
- "Month of death (name): "
- (mapcar 'list (append month-array nil))
- nil t))
- (calendar-make-alist
- month-array 1 'capitalize))))
- (last (calendar-last-day-of-month month year))
- (day (calendar-read
- (format "Day of death (1-%d): " last)
- '(lambda (x) (and (< 0 x) (<= x last))))))
- (list month day year))))
- (death-year (extract-calendar-year death-date))
- (start-year (calendar-read
- (format "Starting year of Yahrzeit table (>%d): "
- death-year)
- '(lambda (x) (> x death-year))
- (int-to-string (1+ death-year))))
- (end-year (calendar-read
- (format "Ending year of Yahrzeit table (>=%d): "
- start-year)
- '(lambda (x) (>= x start-year)))))
- (list death-date start-year end-year)))
- (message "Computing yahrzeits...")
- (let* ((yahrzeit-buffer "*Yahrzeits*")
- (h-date (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian death-date)))
- (h-month (extract-calendar-month h-date))
- (h-day (extract-calendar-day h-date))
- (h-year (extract-calendar-year h-date)))
- (set-buffer (get-buffer-create yahrzeit-buffer))
- (setq buffer-read-only nil)
- (calendar-set-mode-line
- (format "Yahrzeit dates for %s = %s"
- (calendar-date-string death-date)
- (let ((calendar-month-name-array
- (if (hebrew-calendar-leap-year-p h-year)
- calendar-hebrew-month-name-array-leap-year
- calendar-hebrew-month-name-array-common-year)))
- (calendar-date-string h-date nil t))))
- (erase-buffer)
- (goto-char (point-min))
- (calendar-for-loop i from start-year to end-year do
- (insert
- (calendar-date-string
- (calendar-gregorian-from-absolute
- (hebrew-calendar-yahrzeit
- h-date
- (extract-calendar-year
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian (list 1 1 i))))))) "\n"))
- (goto-char (point-min))
- (set-buffer-modified-p nil)
- (setq buffer-read-only t)
- (display-buffer yahrzeit-buffer)
- (message "Computing yahrzeits...done")))
-
- (defun diary-hebrew-date ()
- "Hebrew calendar equivalent of date diary entry."
- (format "Hebrew date (until sunset): %s" (calendar-hebrew-date-string date)))
-
- (defun diary-omer ()
- "Omer count diary entry.
- Entry applies if date is within 50 days after Passover."
- (let* ((passover
- (calendar-absolute-from-hebrew
- (list 1 15 (+ (extract-calendar-year date) 3760))))
- (omer (- (calendar-absolute-from-gregorian date) passover))
- (week (/ omer 7))
- (day (% omer 7)))
- (if (and (> omer 0) (< omer 50))
- (format "Day %d%s of the omer (until sunset)"
- omer
- (if (zerop week)
- ""
- (format ", that is, %d week%s%s"
- week
- (if (= week 1) "" "s")
- (if (zerop day)
- ""
- (format " and %d day%s"
- day (if (= day 1) "" "s")))))))))
-
- (defun diary-yahrzeit (death-month death-day death-year)
- "Yahrzeit diary entry--entry applies if date is yahrzeit or the day before.
- Parameters are DEATH-MONTH, DEATH-DAY, DEATH-YEAR; the diary entry is assumed
- to be the name of the person. Date of death is on the *civil* calendar;
- although the date of death is specified by the civil calendar, the proper
- Hebrew calendar yahrzeit is determined. If `european-calendar-style' is t, the
- order of the parameters is changed to DEATH-DAY, DEATH-MONTH, DEATH-YEAR."
- (let* ((h-date (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (if european-calendar-style
- (list death-day death-month death-year)
- (list death-month death-day death-year)))))
- (h-month (extract-calendar-month h-date))
- (h-day (extract-calendar-day h-date))
- (h-year (extract-calendar-year h-date))
- (d (calendar-absolute-from-gregorian date))
- (yr (extract-calendar-year (calendar-hebrew-from-absolute d)))
- (diff (- yr h-year))
- (y (hebrew-calendar-yahrzeit h-date yr)))
- (if (and (> diff 0) (or (= y d) (= y (1+ d))))
- (format "Yahrzeit of %s%s: %d%s anniversary"
- entry
- (if (= y d) "" " (evening)")
- diff
- (cond ((= (% diff 10) 1) "st")
- ((= (% diff 10) 2) "nd")
- ((= (% diff 10) 3) "rd")
- (t "th"))))))
-
- (defun diary-rosh-hodesh ()
- "Rosh Hodesh diary entry.
- Entry applies if date is Rosh Hodesh, the day before, or the Saturday before."
- (let* ((d (calendar-absolute-from-gregorian date))
- (h-date (calendar-hebrew-from-absolute d))
- (h-month (extract-calendar-month h-date))
- (h-day (extract-calendar-day h-date))
- (h-year (extract-calendar-year h-date))
- (leap-year (hebrew-calendar-leap-year-p h-year))
- (last-day (hebrew-calendar-last-day-of-month h-month h-year))
- (h-month-names
- (if leap-year
- calendar-hebrew-month-name-array-leap-year
- calendar-hebrew-month-name-array-common-year))
- (this-month (aref h-month-names (1- h-month)))
- (h-yesterday (extract-calendar-day
- (calendar-hebrew-from-absolute (1- d)))))
- (if (or (= h-day 30) (and (= h-day 1) (/= h-month 7)))
- (format
- "Rosh Hodesh %s"
- (if (= h-day 30)
- (format
- "%s (first day)"
- ;; next month must be in the same year since this
- ;; month can't be the last month of the year since
- ;; it has 30 days
- (aref h-month-names h-month))
- (if (= h-yesterday 30)
- (format "%s (second day)" this-month)
- this-month)))
- (if (= (% d 7) 6);; Saturday--check for Shabbat Mevarhim
- (cond ((and (> h-day 22) (/= h-month 6) (= 29 last-day))
- (format "Mevarhim Rosh Hodesh %s (%s)"
- (aref h-month-names
- (if (= h-month
- (hebrew-calendar-last-month-of-year
- h-year))
- 0 h-month))
- (aref calendar-day-name-array (- 29 h-day))))
- ((and (< h-day 30) (> h-day 22) (= 30 last-day))
- (format "Mevarhim Rosh Hodesh %s (%s-%s)"
- (aref h-month-names h-month)
- (if (= h-day 29)
- "tomorrow"
- (aref calendar-day-name-array (- 29 h-day)))
- (aref calendar-day-name-array
- (% (- 30 h-day) 7)))))
- (if (and (= h-day 29) (/= h-month 6))
- (format "Erev Rosh Hodesh %s"
- (aref h-month-names
- (if (= h-month
- (hebrew-calendar-last-month-of-year
- h-year))
- 0 h-month))))))))
-
- (defun diary-parasha ()
- "Parasha diary entry--entry applies if date is a Saturday."
- (let ((d (calendar-absolute-from-gregorian date)))
- (if (= (% d 7) 6);; Saturday
- (let*
- ((h-year (extract-calendar-year
- (calendar-hebrew-from-absolute d)))
- (rosh-hashanah
- (calendar-absolute-from-hebrew (list 7 1 h-year)))
- (passover
- (calendar-absolute-from-hebrew (list 1 15 h-year)))
- (rosh-hashanah-day
- (aref calendar-day-name-array (% rosh-hashanah 7)))
- (passover-day
- (aref calendar-day-name-array (% passover 7)))
- (long-h (hebrew-calendar-long-heshvan-p h-year))
- (short-k (hebrew-calendar-short-kislev-p h-year))
- (type (cond ((and long-h (not short-k)) "complete")
- ((and (not long-h) short-k) "incomplete")
- (t "regular")))
- (year-format
- (symbol-value
- (intern (format "hebrew-calendar-year-%s-%s-%s";; keviah
- rosh-hashanah-day type passover-day))))
- (first-saturday;; of Hebrew year
- (calendar-dayname-on-or-before 6 (+ 6 rosh-hashanah)))
- (saturday;; which Saturday of the Hebrew year
- (/ (- d first-saturday) 7))
- (parasha (aref year-format saturday)))
- (if parasha
- (format
- "Parashat %s"
- (if (listp parasha);; Israel differs from diaspora
- (if (car parasha)
- (format "%s (diaspora), %s (Israel)"
- (hebrew-calendar-parasha-name (car parasha))
- (hebrew-calendar-parasha-name (cdr parasha)))
- (format "%s (Israel)"
- (hebrew-calendar-parasha-name (cdr parasha))))
- (hebrew-calendar-parasha-name parasha))))))))
-
- (defvar hebrew-calendar-parashiot-names
- ["Bereshith" "Noah" "Lech L'cha" "Vayera" "Hayei Sarah" "Toledoth"
- "Vayetze" "Vayishlah" "Vayeshev" "Mikketz" "Vayiggash" "Vayhi"
- "Shemoth" "Vaera" "Bo" "Beshallah" "Yithro" "Mishpatim"
- "Terumah" "Tetzavveh" "Ki Tissa" "Vayakhel" "Pekudei" "Vayikra"
- "Tzav" "Shemini" "Tazria" "Metzora" "Aharei Moth" "Kedoshim"
- "Emor" "Behar" "Behukkotai" "Bemidbar" "Naso" "Behaalot'cha"
- "Shelah L'cha" "Korah" "Hukkath" "Balak" "Pinhas" "Mattoth"
- "Masei" "Devarim" "Vaethanan" "Ekev" "Reeh" "Shofetim"
- "Ki Tetze" "Ki Tavo" "Nitzavim" "Vayelech" "Haazinu"]
- "The names of the parashiot in the Torah.")
-
- ;; The seven ordinary year types (keviot)
-
- (defconst hebrew-calendar-year-Saturday-incomplete-Sunday
- [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]
- 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42]
- 43 44 45 46 47 48 49 50]
- "The structure of the parashiot.
- Hebrew year starts on Saturday, is `incomplete' (Heshvan and Kislev each have
- 29 days), and has Passover start on Sunday.")
-
- (defconst hebrew-calendar-year-Saturday-complete-Tuesday
- [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]
- 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42]
- 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Saturday, is `complete' (Heshvan and Kislev each
- have 30 days), and has Passover start on Tuesday.")
-
- (defconst hebrew-calendar-year-Monday-incomplete-Tuesday
- [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]
- 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42]
- 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Monday, is `incomplete' (Heshvan and Kislev each
- have 29 days), and has Passover start on Tuesday.")
-
- (defconst hebrew-calendar-year-Monday-complete-Thursday
- [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]
- 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 (nil . 34) (34 . 35) (35 . 36)
- (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Monday, is `complete' (Heshvan and Kislev each have
- 30 days), and has Passover start on Thursday.")
-
- (defconst hebrew-calendar-year-Tuesday-regular-Thursday
- [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]
- 23 24 nil 25 [26 27] [28 29] 30 [31 32] 33 (nil . 34) (34 . 35) (35 . 36)
- (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Tuesday, is `regular' (Heshvan has 29 days and
- Kislev has 30 days), and has Passover start on Thursday.")
-
- (defconst hebrew-calendar-year-Thursday-regular-Saturday
- [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
- 24 nil (nil . 25) (25 . [26 27]) ([26 27] . [28 29]) ([28 29] . 30)
- (30 . 31) ([31 32] . 32) 33 34 35 36 37 38 39 40 [41 42] 43 44 45 46 47 48
- 49 50]
- "The structure of the parashiot.
- Hebrew year that starts on Thursday, is `regular' (Heshvan has 29 days and
- Kislev has 30 days), and has Passover start on Saturday.")
-
- (defconst hebrew-calendar-year-Thursday-complete-Sunday
- [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 24 nil 25 [26 27] [28 29] 30 [31 32] 33 34 35 36 37 38 39 40 [41 42]
- 43 44 45 46 47 48 49 50]
- "The structure of the parashiot.
- Hebrew year that starts on Thursday, is `complete' (Heshvan and Kislev each
- have 30 days), and has Passover start on Sunday.")
-
- ;; The seven leap year types (keviot)
-
- (defconst hebrew-calendar-year-Saturday-incomplete-Tuesday
- [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
- 23 24 25 26 27 nil 28 29 30 31 32 33 34 35 36 37 38 39 40 [41 42]
- 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Saturday, is `incomplete' (Heshvan and Kislev each
- have 29 days), and has Passover start on Tuesday.")
-
- (defconst hebrew-calendar-year-Saturday-complete-Thursday
- [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
- 23 24 25 26 27 nil 28 29 30 31 32 33 (nil . 34) (34 . 35) (35 . 36)
- (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Saturday, is `complete' (Heshvan and Kislev each
- have 30 days), and has Passover start on Thursday.")
-
- (defconst hebrew-calendar-year-Monday-incomplete-Thursday
- [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
- 23 24 25 26 27 nil 28 29 30 31 32 33 (nil . 34) (34 . 35) (35 . 36)
- (36 . 37) (37 . 38) ([38 39] . 39) 40 [41 42] 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Monday, is `incomplete' (Heshvan and Kislev each
- have 29 days), and has Passover start on Thursday.")
-
- (defconst hebrew-calendar-year-Monday-complete-Saturday
- [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
- 23 24 25 26 27 nil (nil . 28) (28 . 29) (29 . 30) (30 . 31) (31 . 32)
- (32 . 33) (33 . 34) (34 . 35) (35 . 36) (36 . 37) (37 . 38) (38 . 39)
- (39 . 40) (40 . 41) ([41 42] . 42) 43 44 45 46 47 48 49 50]
- "The structure of the parashiot.
- Hebrew year that starts on Monday, is `complete' (Heshvan and Kislev each have
- 30 days), and has Passover start on Saturday.")
-
- (defconst hebrew-calendar-year-Tuesday-regular-Saturday
- [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
- 23 24 25 26 27 nil (nil . 28) (28 . 29) (29 . 30) (30 . 31) (31 . 32)
- (32 . 33) (33 . 34) (34 . 35) (35 . 36) (36 . 37) (37 . 38) (38 . 39)
- (39 . 40) (40 . 41) ([41 42] . 42) 43 44 45 46 47 48 49 50]
- "The structure of the parashiot.
- Hebrew year that starts on Tuesday, is `regular' (Heshvan has 29 days and
- Kislev has 30 days), and has Passover start on Saturday.")
-
- (defconst hebrew-calendar-year-Thursday-incomplete-Sunday
- [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 24 25 26 27 28 nil 29 30 31 32 33 34 35 36 37 38 39 40 41 42
- 43 44 45 46 47 48 49 50]
- "The structure of the parashiot.
- Hebrew year that starts on Thursday, is `incomplete' (Heshvan and Kislev both
- have 29 days), and has Passover start on Sunday.")
-
- (defconst hebrew-calendar-year-Thursday-complete-Tuesday
- [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 24 25 26 27 28 nil 29 30 31 32 33 34 35 36 37 38 39 40 41 42
- 43 44 45 46 47 48 49 [50 51]]
- "The structure of the parashiot.
- Hebrew year that starts on Thursday, is `complete' (Heshvan and Kislev both
- have 30 days), and has Passover start on Tuesday.")
-
- (defun hebrew-calendar-parasha-name (p)
- "Name(s) corresponding to parasha P."
- (if (arrayp p);; combined parasha
- (format "%s/%s"
- (aref hebrew-calendar-parashiot-names (aref p 0))
- (aref hebrew-calendar-parashiot-names (aref p 1)))
- (aref hebrew-calendar-parashiot-names p)))
-
- (provide 'cal-hebrew)
-
- ;;; cal-hebrew.el ends here
-