(defun sharp-vertical-bar (stream sub-char numarg)
(ignore-numarg sub-char numarg)
(let ((stream (in-synonym-of stream)))
- (if (lisp-stream-p stream)
+ (if (ansi-stream-p stream)
(prepare-for-fast-read-char stream
(do ((level 1)
(prev (fast-read-char) char)