broadcast-stream-streams file-author pathnamep close file-namestring probe-file compile-file file-write-date rename-file compile-file-pathname host-namestring streamp concatenated-stream-streams load synonym-stream-symbol delete-file logical-pathname translate-logical-pathname directory merge-pathnames translate-pathname directory-namestring namestring truename dribble open two-way-stream-input-stream echo-stream-input-stream open-stream-p two-way-stream-output-stream echo-stream-ouput-stream parse-namestring wild-pathname-p ed pathname with-open-file enough-namestring pathname-match-p

Figure 21.7: Operators that accept either Open or Closed Streams

clear-input output-stream-p read-char-no-hang clear-output peek-char read-delimited-list file-length pprint read-line file-position pprint-fill read-preserving-whitespace file-string-length pprint-indent stream-element-type finish-output pprint-linear stream-external-format force-output pprint-logical-block terpri format pprint-newline unread-char fresh-line pprint-tab with-open-stream get-output-stream-string pprint-tabular write input-stream-p prin1 write-byte interactive-stream-p princ write-char listen print write-line make-broadcast-stream print-object write-string make-concatenated-stream print-unreadable-object y-or-n-p make-echo-stream read yes-or-no-p make-synonym-stream read-byte make-two-way-stream read-char

Figure 21.8: Operators that accept Open Streams only