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My .emacs.d directory
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my-emacs-d/lisp/minari.el

70 lines
2.7 KiB

;;; minari.el --- Calculate Minari dates
;;; Commentary:
;;
;;; Code:
(defconst minari-special-day-names
'("Hëður" "Rideyy" "Morkh" "Morkh+" "Khmerd" "Chamog")
"Names of the special (monthless) days of the year.")
(defconst minari-weekday-names
'("Ro’unn" "Mïrdu" "Hëmi" "Drak" "Þodon" "Charm")
"Names of weekdays.")
(defconst minari-month-names
'("Mëbel" "Dirann" "Ma’uþ"
"Gerub" "Þrei" "Dimoc"
"Xentor" "Mëðïr" "Draþ"
"Quaden" "Ridïmel" "Rodom")
"Names of months.")
(defun minari-today-string ()
"Calculate today's date according to the Minari Calendar."
(let ((today (decode-time (current-time))))
;; FIXME: I’m not sure about this one… If I increment by 11, I get a
;; wrong date according to my GNOME Shell extension. If I increment by
;; 10, the date is OK, but by calculating it in my head, it’s bad.
(incf (nth 3 today) 10)
(let* ((minari-leap (date-leap-year-p (nth 5 today)))
(doy (time-to-day-in-year (apply 'encode-time today)))
(minari-year (- (nth 5 today) 1873))
(minari-month 0)
(minari-doy 0)
(minari-day 0)
(minari-weekday 0)
(minari-special-day -1))
(cond
((eq doy 0) (setq minari-special-day 0))
((eq doy 91) (setq minari-special-day 1))
((eq doy 182) (setq minari-special-day 2))
((and (eq doy 183) minari-leap) (setq minari-special-day 3))
((and (eq doy 273) (not minari-leap)) (setq minari-special-day 4))
((and (eq doy 274) minari-leap) (setq minari-special-day 4))
((and (eq doy 364) (not minari-leap)) (setq minari-special-day 5))
((and (eq doy 365) minari-leap) (setq minari-special-day 5))
(t (let ((decr 0)
(minari-doy doy))
(when (> minari-doy 0) (incf decr))
(when (> minari-doy 91) (incf decr))
(when (> minari-doy 182) (incf decr))
(when (and (> minari-doy 183) minari-leap) (incf decr))
(when (and (> minari-doy 273) (not minari-leap)) (incf decr))
(when (and (> minari-doy 274) minari-leap) (incf decr))
(setq minari-doy (- minari-doy (- decr 1))
minari-month (round (fceiling (/ minari-doy 30.0)))
minari-day (% minari-doy 30))
(when (eq minari-day 0) (setq minari-day 30))
(setq minari-weekday (% minari-day 6)))))
(if (eq -1 minari-special-day)
(format "%d %s %s (%s)"
minari-year
(nth (- minari-month 1) minari-month-names)
minari-day
(nth minari-weekday minari-weekday-names))
(nth (- minari-special-day 1) minari-special-day-names)))))
(provide 'minari)
;;; minari.el ends here