+
+(define-condition reader-impossible-number-error (reader-error)
+ ((error :reader reader-impossible-number-error-error :initarg :error))
+ (:report
+ (lambda (condition stream)
+ (let ((error-stream (stream-error-stream condition)))
+ (format stream "READER-ERROR ~@[at ~W ~]on ~S:~%~?~%Original error: ~A"
+ (file-position error-stream) error-stream
+ (reader-error-format-control condition)
+ (reader-error-format-arguments condition)
+ (reader-impossible-number-error-error condition))))))
+
+;;; should this inherit from error? good question
+(define-condition timeout (error) ())
+
+