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  ANSI Common Lisp   13 Characters   13.2 Dictionary of Characters

13.2.13 standard-char-p Function

standard-char-p character    generalized-boolean

Arguments and Values:
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

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

Allegro CL Implementation Details:

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