off if it is on). It should turn the mode on if the argument is a
positive integer, the symbol @code{t}, or a list whose @sc{car} is one
of those. It should turn the mode off if the argument is a negative
-integer or zero, the symbol @code{-}, or a list whose @sc{car} is one
-of those. The meaning of other arguments is not specified.
+integer or zero, the symbol @code{-}, or a list whose @sc{car} is a
+negative integer or zero. The meaning of other arguments is not
+specified.
Here is an example taken from the definition of @code{transient-mark-mode}.
It shows the use of @code{transient-mark-mode} as a variable that enables or