Major Section: PROGRAMMING
(Standard-char-p x) is true if and only if
x is a ``standard''
character, i.e., a member of the list
#Space characters, as well as the usual
punctuation and alphanumeric characters.
Standard-char-p has a guard requiring its argument to be a
Standard-char-p is a Common Lisp function. See any Common Lisp
documentation for more information.