From 9d198e538573b5101f6d90924664a79f9864ac93 Mon Sep 17 00:00:00 2001 From: Gerd Moellmann Date: Mon, 26 Mar 2001 13:34:10 +0000 Subject: [PATCH] Backed out because no papers. --- lisp/calendar/cal-bahai.el | 506 ------------------------------------- 1 file changed, 506 deletions(-) delete mode 100644 lisp/calendar/cal-bahai.el diff --git a/lisp/calendar/cal-bahai.el b/lisp/calendar/cal-bahai.el deleted file mode 100644 index 22ab6ef0883..00000000000 --- a/lisp/calendar/cal-bahai.el +++ /dev/null @@ -1,506 +0,0 @@ -;;; cal-bahai.el --- calendar functions for the Baha'i calendar. - -;; Copyright (C) 2001 Free Software Foundation, Inc. - -;; Author: John Wiegley -;; Keywords: calendar -;; Human-Keywords: Baha'i calendar, Baha'i, Bahai, 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 Baha'i calendar. - -;; The Baha'i (http://www.bahai.org) calendar system is based on a -;; solar cycle of 19 months with 19 days each. The four remaining -;; "intercalary" days are called the Ayyam-i-Ha (days of Ha), and are -;; placed between the 18th and 19th months. They are meant as a time -;; of festivals preceding the 19th month, which is the month of -;; fasting. In Gregorian leap years, there are 5 of these days (Ha -;; has the numerical value of 5 in the arabic abjad, or -;; letter-to-number, reckoning). - -;; Each month is named after an attribute of God, as are the 19 days -;; -- which have the same names as the months. There is also a name -;; for each year in every 19 year cycle. These cycles are called -;; Vahids. A cycle of 19 Vahids (361 years) is called a Kullu-Shay, -;; which means "all things". - -;; The calendar was named the "Badi calendar" by its author, the Bab. -;; It uses a week of seven days, corresponding to the Gregorian week, -;; each of which has its own name, again patterned after the -;; attributes of God. - -;; Note: The days of Ayyam-i-Ha are encoded as zero and negative -;; offsets from the first day of the final month. So, (19 -3 157) is -;; the first day of Ayyam-i-Ha, in the year 157 BE. - -;;; Code: - -(require 'cal-julian) - -(defvar bahai-calendar-month-name-array - ["Baha" "Jalal" "Jamal" "`Azamat" "Nur" "Rahmat" "Kalimat" "Kamal" - "Asma" "`Izzat" "Mashiyyat" "`Ilm" "Qudrat" "Qawl" "Masa'il" - "Sharaf" "Sultan" "Mulk" "`Ala"]) - -(defvar calendar-bahai-epoch (calendar-absolute-from-gregorian '(3 21 1843)) - "Absolute date of start of Baha'i calendar = March 19, 622 A.D. (Julian).") - -(defun bahai-calendar-leap-year-p (year) - "True if YEAR is a leap year on the Baha'i calendar." - (calendar-leap-year-p (+ year 1843))) - -(defvar bahai-calendar-leap-base - (+ (/ 1843 4) (- (/ 1843 100)) (/ 1843 400))) - -(defun calendar-absolute-from-bahai (date) - "Compute absolute date from Baha'i date 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)) - (prior-years (+ (1- year) 1843)) - (leap-days (- (+ (/ prior-years 4) ; Leap days in prior years. - (- (/ prior-years 100)) - (/ prior-years 400)) - bahai-calendar-leap-base))) - (+ (1- calendar-bahai-epoch) ; Days before epoch - (* 365 (1- year)) ; Days in prior years. - leap-days - (calendar-sum m 1 (< m month) 19) - (if (= month 19) 4 0) - day))) ; Days so far this month. - -(defun calendar-bahai-from-absolute (date) - "Baha'i year corresponding to the absolute DATE." - (if (< date calendar-bahai-epoch) - (list 0 0 0) ;; pre-Baha'i date - (let* ((greg (calendar-gregorian-from-absolute date)) - (year (+ (- (extract-calendar-year greg) 1843) - (if (or (> (extract-calendar-month greg) 3) - (and (= (extract-calendar-month greg) 3) - (>= (extract-calendar-day greg) 21))) - 1 0))) - (month ;; Search forward from Baha. - (1+ (calendar-sum m 1 - (> date - (calendar-absolute-from-bahai - (list m 19 year))) - 1))) - (day ;; Calculate the day by subtraction. - (- date - (1- (calendar-absolute-from-bahai (list month 1 year)))))) - (list month day year)))) - -(defun calendar-bahai-date-string (&optional date) - "String of Baha'i date of Gregorian DATE. -Defaults to today's date if DATE is not given." - (let* ((bahai-date (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian - (or date (calendar-current-date))))) - (y (extract-calendar-year bahai-date)) - (m (extract-calendar-month bahai-date)) - (d (extract-calendar-day bahai-date))) - (let ((monthname - (if (and (= m 19) - (<= d 0)) - "Ayyam-i-Ha" - (aref bahai-calendar-month-name-array (1- m)))) - (day (int-to-string - (if (<= d 0) - (if (bahai-calendar-leap-year-p y) - (+ d 5) - (+ d 4)) - d))) - (dayname nil) - (month (int-to-string m)) - (year (int-to-string y))) - (mapconcat 'eval calendar-date-display-form "")))) - -(defun calendar-print-bahai-date () - "Show the Baha'i calendar equivalent of the selected date." - (interactive) - (message "Baha'i date: %s" - (calendar-bahai-date-string (calendar-cursor-to-date t)))) - -(defun calendar-goto-bahai-date (date &optional noecho) - "Move cursor to Baha'i date DATE. -Echo Baha'i date unless NOECHO is t." - (interactive (bahai-prompt-for-date)) - (calendar-goto-date (calendar-gregorian-from-absolute - (calendar-absolute-from-bahai date))) - (or noecho (calendar-print-bahai-date))) - -(defun bahai-prompt-for-date () - "Ask for a Baha'i date." - (let* ((today (calendar-current-date)) - (year (calendar-read - "Baha'i calendar year (not 0): " - '(lambda (x) (/= x 0)) - (int-to-string - (extract-calendar-year - (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian today)))))) - (completion-ignore-case t) - (month (cdr (assoc - (completing-read - "Baha'i calendar month name: " - (mapcar 'list - (append bahai-calendar-month-name-array nil)) - nil t) - (calendar-make-alist bahai-calendar-month-name-array - 1)))) - (day (calendar-read "Baha'i calendar day (1-19): " - '(lambda (x) (and (< 0 x) (<= x 19)))))) - (list (list month day year)))) - -(defun diary-bahai-date () - "Baha'i calendar equivalent of date diary entry." - (format "Baha'i date: %s" (calendar-bahai-date-string date))) - -(defun holiday-bahai (month day string) - "Holiday on MONTH, DAY (Baha'i) called STRING. -If MONTH, DAY (Baha'i) 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." - (let* ((bahai-date (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian - (list displayed-month 15 displayed-year)))) - (m (extract-calendar-month bahai-date)) - (y (extract-calendar-year bahai-date)) - (date)) - (if (< m 1) - nil ;; Baha'i calendar doesn't apply. - (increment-calendar-month m y (- 10 month)) - (if (> m 7) ;; Baha'i date might be visible - (let ((date (calendar-gregorian-from-absolute - (calendar-absolute-from-bahai (list month day y))))) - (if (calendar-date-is-visible-p date) - (list (list date string)))))))) - -(defun list-bahai-diary-entries () - "Add any Baha'i date entries from the diary file to `diary-entries-list'. -Baha'i date diary entries must be prefaced by an -`bahai-diary-entry-symbol' (normally a `B'). The same diary date -forms govern the style of the Baha'i calendar entries, except that the -Baha'i month names must be given numerically. The Baha'i months are -numbered from 1 to 19 with Baha being 1 and 19 being `Ala. If a -Baha'i 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) - (bdate (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian gdate))) - (month (extract-calendar-month bdate)) - (day (extract-calendar-day bdate)) - (year (extract-calendar-year bdate))) - (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 - bahai-calendar-month-name-array) - (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 bahai-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-no-properties entry-start (point)) - (buffer-substring-no-properties - (1+ date-start) (1- entry-start))))))) - (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-bahai-diary-entries () - "Mark days in the calendar window that have Baha'i date diary entries. -Each entry in diary-file (or included files) visible in the calendar -window is marked. Baha'i date entries are prefaced by a -bahai-diary-entry-symbol \(normally a B`I'). The same -diary-date-forms govern the style of the Baha'i calendar entries, -except that the Baha'i month names must be spelled in full. The -Baha'i months are numbered from 1 to 12 with Baha being 1 and 12 being -`Ala. Baha'i 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 bahai-calendar-month-name-array 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 bahai-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-bahai-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-ignore-case (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-ignore-case - mm-name - (calendar-make-alist - bahai-calendar-month-name-array)))))) - (mark-bahai-calendar-date-pattern mm dd yy))))) - (setq d (cdr d))))) - -(defun mark-bahai-calendar-date-pattern (month day year) - "Mark dates in calendar window that conform to Baha'i 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 Baha'i date. - (let ((date (calendar-gregorian-from-absolute - (calendar-absolute-from-bahai - (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. - (let* ((bahai-date (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian - (list displayed-month 15 displayed-year)))) - (m (extract-calendar-month bahai-date)) - (y (extract-calendar-year bahai-date)) - (date)) - (if (< m 1) - nil;; Baha'i calendar doesn't apply. - (increment-calendar-month m y (- 10 month)) - (if (> m 7);; Baha'i date might be visible - (let ((date (calendar-gregorian-from-absolute - (calendar-absolute-from-bahai - (list month day y))))) - (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* ((b-date (calendar-bahai-from-absolute date)) - (i-month (extract-calendar-month b-date)) - (i-day (extract-calendar-day b-date)) - (i-year (extract-calendar-year b-date))) - (and (or (zerop month) - (= month i-month)) - (or (zerop day) - (= day i-day)) - (or (zerop year) - (= year i-year)) - (mark-visible-calendar-date - (calendar-gregorian-from-absolute date))))))))) - -(defun insert-bahai-diary-entry (arg) - "Insert a diary entry. -For the Baha'i date corresponding to the date indicated by point. -Prefix arg will make the entry nonmarking." - (interactive "P") - (let* ((calendar-month-name-array bahai-calendar-month-name-array)) - (make-diary-entry - (concat - bahai-diary-entry-symbol - (calendar-date-string - (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian - (calendar-cursor-to-date t))) - nil t)) - arg))) - -(defun insert-monthly-bahai-diary-entry (arg) - "Insert a monthly diary entry. -For the day of the Baha'i 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 bahai-calendar-month-name-array)) - (make-diary-entry - (concat - bahai-diary-entry-symbol - (calendar-date-string - (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian - (calendar-cursor-to-date t))))) - arg))) - -(defun insert-yearly-bahai-diary-entry (arg) - "Insert an annual diary entry. -For the day of the Baha'i 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 bahai-calendar-month-name-array)) - (make-diary-entry - (concat - bahai-diary-entry-symbol - (calendar-date-string - (calendar-bahai-from-absolute - (calendar-absolute-from-gregorian - (calendar-cursor-to-date t))))) - arg))) - -(provide 'cal-bahai) - -;;; cal-bahai.el ends here -- 2.39.2