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  ANSI Common Lisp   11 Packages   11.1 Package Concepts   11.1.2 Standardized Packages

11.1.2.3 The KEYWORD Package

The keyword package contains symbols, called keywords1, that are typically used as special markers in programs and their associated data expressions1.

Symbol tokens that start with a package marker are parsed by the Lisp reader as symbols in the keyword package; see Section 2.3.4 Symbols as Tokens. This makes it notationally convenient to use keywords when communicating between programs in different packages. For example, the mechanism for passing keyword parameters in a call uses keywords1 to name the corresponding arguments; see Section 3.4.1 Ordinary Lambda Lists.

Symbols in the keyword package are, by definition, of type keyword.

11.1.2.3.1  Interning a Symbol in the KEYWORD Package
11.1.2.3.2  Notes about The KEYWORD Package


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