CL accepts some unusual symbols
To wit:
;; Empty SYMBOL-NAME:
(let ((|| 42)) ||)
;; ASCII NUL byte:
(let ((#1=#.(intern (string #\Nul)) 42)) #1#)
(princ '(How useful. ಠ_ಠ))
To wit:
;; Empty SYMBOL-NAME:
(let ((|| 42)) ||)
;; ASCII NUL byte:
(let ((#1=#.(intern (string #\Nul)) 42)) #1#)
(princ '(How useful. ಠ_ಠ))