and bottom of the left or right fringe if the window can be scrolled
in either direction.
-The buffer-local variable @code{indicate-buffer-boundaries} controls
+ The buffer-local variable @code{indicate-buffer-boundaries} controls
how the buffer boundaries and window scrolling is indicated in the
fringes.
-If the value is @code{left} or @code{right}, both angle and arrow
+ If the value is @code{left} or @code{right}, both angle and arrow
bitmaps are displayed in the left or right fringe, respectively.
-Any other non-@code{nil} value causes the bitmap on the top line to be
-displayed in the left fringe, and the bitmap on the bottom line in the
-right fringe.
-
-If value is a cons @code{(angles . arrows)}, the car specifies the
-position of the angle bitmaps, and the cdr specifies the position of
-the arrow bitmaps. For example, @code{(t . right)} places the top
-angle bitmap in left fringe, the bottom angle bitmap in right fringe,
-and both arrow bitmaps in right fringe. To show just the angle
-bitmaps in the left fringe, but no arrow bitmaps, use @code{(left . nil)}.
+
+ If value is an alist, each element @code{(@var{indicator} .
+@var{position})} specifies the position of one of the indicators.
+The @var{indicator} must be one of @code{top}, @code{bottom},
+@code{up}, @code{down}, or @code{t} which specifies the default
+position for the indicators not present in the alist.
+The @var{position} is one of @code{left}, @code{right}, or @code{ni}
+which specifies not to show this indicator.
+
+ For example, @code{((top . left) (t . right))} places the top angle
+bitmap in left fringe, the bottom angle bitmap in right fringe, and
+both arrow bitmaps in right fringe. To show just the angle bitmaps in
+the left fringe, but no arrow bitmaps, use @code{((top . left)
+(bottom . left))}.
@vindex default-indicate-buffer-boundaries
The value of the variable @code{default-indicate-buffer-boundaries}