+ '(simple-array (unsigned-byte 8) (#.base-char-code-limit)))
+
+;;; constants for readtable character attributes. These are all as in
+;;; the manual.
+(def!constant +char-attr-whitespace+ 0)
+(def!constant +char-attr-terminating-macro+ 1)
+(def!constant +char-attr-escape+ 2)
+(def!constant +char-attr-constituent+ 3)
+(def!constant +char-attr-constituent-dot+ 4)
+(def!constant +char-attr-constituent-expt+ 5)
+(def!constant +char-attr-constituent-slash+ 6)
+(def!constant +char-attr-constituent-digit+ 7)
+(def!constant +char-attr-constituent-sign+ 8)
+;;; the following two are not static but depend on *READ-BASE*.
+;;; DECIMAL-DIGIT is for characters being digits in base 10 but not in
+;;; base *READ-BASE* (which is therefore perforce smaller than 10);
+;;; DIGIT-OR-EXPT is for characters being both exponent markers and
+;;; digits in base *READ-BASE* (which is therefore perforce larger
+;;; than 10). -- CSR, 2004-03-16
+(def!constant +char-attr-constituent-decimal-digit+ 9)
+(def!constant +char-attr-constituent-digit-or-expt+ 10)
+
+(def!constant +char-attr-multiple-escape+ 11)
+(def!constant +char-attr-package-delimiter+ 12)
+(def!constant +char-attr-delimiter+ 13) ; (a fake for READ-UNQUALIFIED-TOKEN)