standard-char-p character → generalized-boolean

character — a character.

generalized-boolean — a generalized boolean.

Returns true if character is of type standard-char; otherwise, returns false.

(standard-char-p #\Space) → true 
(standard-char-p #\~) → true 
;; This next example presupposes an implementation 
;; in which #\Bell is a defined character. 
(standard-char-p #\Bell) → false

Should signal an error of type type-error if character is not a character.