(if (eq lines '-) nil
(if (null lines) '-
(- (prefix-numeric-value lines))))))
+
+(defun beginning-of-buffer-other-window (arg)
+ "Move point to the beginning of the buffer in the other window.
+Leave mark at previous position.
+With arg N, put point N/10 of the way from the true beginning."
+ (interactive "P")
+ (let ((orig-window (selected-window))
+ (window (other-window-for-scrolling)))
+ ;; We use unwind-protect rather than save-window-excursion
+ ;; because the latter would preserve the things we want to change.
+ (unwind-protect
+ (progn
+ (select-window window)
+ ;; Set point and mark in that window's buffer.
+ (beginning-of-buffer arg)
+ ;; Set point accordingly.
+ (recenter '(t)))
+ (select-window orig-window))))
+
+(defun end-of-buffer-other-window (arg)
+ "Move point to the end of the buffer in the other window.
+Leave mark at previous position.
+With arg N, put point N/10 of the way from the true end."
+ (interactive "P")
+ ;; See beginning-of-buffer-other-window for comments.
+ (let ((orig-window (selected-window))
+ (window (other-window-for-scrolling)))
+ (unwind-protect
+ (progn
+ (select-window window)
+ (beginning-of-buffer arg)
+ (recenter '(t)))
+ (select-window orig-window))))
\f
(defun transpose-chars (arg)
"Interchange characters around point, moving forward one character.