bug in reader?

Hi!

Using openmcl 0.13.5 I encounter difficulties using self-defined reader 
macros. Within a conditional read that is ignored self-defined reader 
macros do not seem to work. Attached is an example defining a reader 
macro #@ for mac screen points as available in MCL. The error caused by 
the last statement is unclear to me. Is this a bug or am I missing 
something? Any ideas?

Regards,
    Diedrich



? (set-dispatch-macro-character #\# #\@ #'(lambda (stream char1 char2)
								  (declare (ignore char1 char2))
								  (let ((p (read stream)))
								    (format t "~%Read ~a" p)
								    (logior (first p) (ash (second p) 16)))) *readtable*)       
                                                              T
? #@(8 8)

Read (8 8)524296
? #-SOMETHING #@(8 8) #@(9 9)

Read (8 8)
524296
?
Read (9 9)589833
? #+SOMETHING #@(9 9) #@(8 8)

Read (NIL NIL)
 > Error: value NIL is not of the expected type INTEGER.
 > While executing: ASH
 > Type :POP to abort.
Type :? for other options.
1 >



--

Diedrich Wolter, [email protected], +49 421 218 9558
Cognitive Systems Group, University of Bremen
http://www.cosy.informatik.uni-bremen.de/