(make-local-variable 'riece-obarray)
(setq riece-obarray (make-vector riece-obarray-size 0))
(make-local-variable 'riece-coding-system)
+ (make-local-variable 'riece-filter-semaphore)
+ (setq riece-filter-semaphore '(nil))
(buffer-disable-undo)
(erase-buffer)))