Function: calendar-cursor-to-date

calendar-cursor-to-date is a byte-compiled function defined in calendar.el.gz.

Signature

(calendar-cursor-to-date &optional ERROR EVENT)

Documentation

Return a list (month day year) of current cursor position.

If cursor is not on a specific date, signals an error if optional parameter ERROR is non-nil, otherwise just returns nil. If EVENT is non-nil, it's an event indicating the buffer position to use instead of point.

Source Code

;; Defined in /usr/src/emacs/lisp/calendar/calendar.el.gz
(defun calendar-cursor-to-date (&optional error event)
  "Return a list (month day year) of current cursor position.
If cursor is not on a specific date, signals an error if optional
parameter ERROR is non-nil, otherwise just returns nil.
If EVENT is non-nil, it's an event indicating the buffer position to
use instead of point."
  (with-current-buffer
      (if event (window-buffer (posn-window (event-start event)))
        (current-buffer))
    (save-excursion
      (and event (setq event (event-start event))
           (goto-char (posn-point event)))
      (let* ((segment (calendar-column-to-segment))
             (month (% (+ displayed-month (1- segment)) 12)))
        ;; Call with point on either of the two digits in a 2-digit date,
        ;; or on or before the digit of a 1-digit date.
        (if (not (and (looking-at "[ 0-9]?[0-9][^0-9]")
                      (get-text-property (point) 'date)))
            (if error (user-error "Not on a date!"))
          ;; Convert segment to real month and year.
          (if (zerop month) (setq month 12))
          ;; Go back to before the first date digit.
          (or (looking-at " ")
              (re-search-backward "[^0-9]"))
          (list month
                (string-to-number
                 (buffer-substring (1+ (point))
                                   (+ 1 calendar-day-digit-width (point))))
                (cond
                 ((and (= 12 month) (zerop segment)) (1- displayed-year))
                 ((and (= 1 month) (= segment 2)) (1+ displayed-year))
                 (t displayed-year))))))))