6.5 Predefined Presentation Types
6.5.1 Basic Presentation Types
These basic presentation types correspond to the Common Lisp types of the same name. t [Presentation Type]
- Summary:
- The supertype of all other presentation types.
nil [Presentation Type]
- Summary:
- The subtype of all other presentation types. This has no printed representation, and is useful only in writing "context independent" translators, that is, translators whose to-type is nil.
null [Presentation Type]
- Summary:
- The presentation type that represents "nothing." The single object associated with this type is nil, and its printed representation is "None."
boolean [Presentation Type]
- Summary:
- The presentation type that represents t or nil. The textual representation is "Yes" and "No," respectively.
symbol [Presentation Type]
- Summary:
- The presentation type that represents a symbol.
keyword [Presentation Type]
- Summary:
- The presentation type that represents a symbol in the keyword package. It is a subtype of symbol.
blank-area [Presentation Type]
- Summary:
- The type that represents all the places in a window where there is no presentation that is applicable in the current input context. CLIM provides a single "null presentation" as the object associated with this type.
*null-presentation* [Variable]
- Summary:
- The null presentation, which occupies all parts of a window in which there are no applicable presentations. This will have a presentation type of blank-area.
CLIM 2.0 User's Guide - OCT 1998 Generated with Harlequin WebMaker