characterp (Function)

Syntax:

Arguments and Values:

object—an object.

generalized-boolean—a generalized boolean.

Description:

Returns true if object is of type character; otherwise, returns false.

Examples:

 (characterp #\a) → true
 (characterp 'a) → false
 (characterp "a") → false
 (characterp 65.) → false
 (characterp #\Newline) → true
 ;; This next example presupposes an implementation
 ;; in which #\Rubout is an implementation-defined character.
 (characterp #\Rubout) → true

See Also:

character (Function) (type and function), typep

Notes:

 (characterp object) ≡ (typep object 'character)