(require 'calendar)
-(defun calendar-absolute-from-iso (date)
+(defun calendar-iso-to-absolute (date)
"The number of days elapsed between the Gregorian date 12/31/1 BC and DATE.
The `ISO year' corresponds approximately to the Gregorian year, but
weeks start on Monday and end on Sunday. The first week of the ISO year is
(* 7 (1- (extract-calendar-month date)))
(if (zerop day) 6 (1- day)))))
+(define-obsolete-function-alias 'calendar-absolute-from-iso
+ 'calendar-iso-to-absolute "23.1")
+
(defun calendar-iso-from-absolute (date)
"Compute the `ISO commercial date' corresponding to the absolute DATE.
The ISO year corresponds approximately to the Gregorian year, but weeks
(calendar-gregorian-from-absolute (- date 3))))
(year (+ approx
(calendar-sum y approx
- (>= date (calendar-absolute-from-iso
+ (>= date (calendar-iso-to-absolute
(list 1 1 (1+ y))))
1))))
(list
- (1+ (/ (- date (calendar-absolute-from-iso (list 1 1 year))) 7))
+ (1+ (/ (- date (calendar-iso-to-absolute (list 1 1 year))) 7))
(% date 7)
year)))
(extract-calendar-year iso-date))))
;;;###cal-autoload
-(defun calendar-print-iso-date ()
+(defun calendar-iso-print-date ()
"Show equivalent ISO date for the date under the cursor."
(interactive)
(message "ISO date: %s"
(calendar-iso-date-string (calendar-cursor-to-date t))))
+(define-obsolete-function-alias 'calendar-print-iso-date
+ 'calendar-iso-print-date "23.1")
+
(defun calendar-iso-read-date (&optional dayflag)
"Interactively read the arguments for an ISO date command.
Reads a year and week, and if DAYFLAG is non-nil a day (otherwise
1)))
(list (list week day year))))
-(define-obsolete-function-alias
- 'calendar-iso-read-args 'calendar-iso-read-date "23.1")
+(define-obsolete-function-alias 'calendar-iso-read-args
+ 'calendar-iso-read-date "23.1")
;;;###cal-autoload
-(defun calendar-goto-iso-date (date &optional noecho)
+(defun calendar-iso-goto-date (date &optional noecho)
"Move cursor to ISO DATE; echo ISO date unless NOECHO is non-nil."
(interactive (calendar-iso-read-date t))
(calendar-goto-date (calendar-gregorian-from-absolute
- (calendar-absolute-from-iso date)))
- (or noecho (calendar-print-iso-date)))
+ (calendar-iso-to-absolute date)))
+ (or noecho (calendar-iso-print-date)))
+
+(define-obsolete-function-alias 'calendar-goto-iso-date
+ 'calendar-iso-goto-date "23.1")
;;;###cal-autoload
-(defun calendar-goto-iso-week (date &optional noecho)
+(defun calendar-iso-goto-week (date &optional noecho)
"Move cursor to ISO DATE; echo ISO date unless NOECHO is non-nil.
Interactively, goes to the first day of the specified week."
(interactive (calendar-iso-read-date))
(calendar-goto-date (calendar-gregorian-from-absolute
- (calendar-absolute-from-iso date)))
- (or noecho (calendar-print-iso-date)))
+ (calendar-iso-to-absolute date)))
+ (or noecho (calendar-iso-print-date)))
+
+(define-obsolete-function-alias 'calendar-goto-iso-week
+ 'calendar-iso-goto-week "23.1")
(defvar date)