+;;; the [1] and [2] here refer to ANSI glossary entries for
+;;; "whitespace".
+#!-sb-fluid (declaim (inline whitespace[1]p whitespace[2]p))
+(defun whitespace[1]p (char)
+ (test-attribute char +char-attr-whitespace+ *standard-readtable*))
+(defun whitespace[2]p (char &optional (rt *readtable*))