@defvr Specifier default-toolbar
The position of this toolbar is specified in the function
-@code{default-toolbar-position}. If the corresponding
+@code{default-toolbar-position}. If the corresponding
position-specific toolbar (e.g. @code{top-toolbar} if
@code{default-toolbar-position} is @code{top}) does not specify a
toolbar in a particular domain, then the value of @code{default-toolbar}
@end defvr
@defun toolbar-specifier-p object
-This function returns non-nil if @var{object} is a toolbar specifier.
+This function returns non-@code{nil} if @var{object} is a toolbar specifier.
Toolbar specifiers are the actual objects contained in the toolbar
variables described above, and their valid instantiators are
toolbar descriptors (@pxref{Toolbar Descriptor Format}).
left toolbar width for that frame to 68 pixels, then the frame will be
sized to fit 80 characters plus a 68-pixel left toolbar. If you then
set the left toolbar width to 0 for a particular buffer (or if that
-buffer does not specify a left toolbar or has a nil value specified for
+buffer does not specify a left toolbar or has a @code{nil} value specified for
@code{left-toolbar-visible-p}), you will find that, when that buffer is
displayed in the selected window, the window will have a width of 86 or
87 characters---the frame is sized for a 68-pixel left toolbar but the