Zero-argument classes within toolkits are displayed as pull-right menus. You can nest classes to any depth. If a member of a zero argument class is an instance of the class Menuseparator, it is drawn as a menu separator. This can be useful to give visual grouping to a menu.
nip2 uses the first line of the comment before a definition as help text for that function, so it's a good idea to put a simple one-line description of the function at the start of a comment.
For example, if the following text is placed in a file called Fred.def on nip2's start path, you'll get a menu in the tookits called Fred with a pull-right and a separator. See Figure 6.1.
Banana a = a * 3; Subfred = class { // add two things Jim a b = a + b; Apple e = e * 12; sep1 = Separator; Harry z = 12 + z; }