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ANSI Common Lisp  21 Streams 21.1 Stream Concepts
21.1.3 Stream Arguments to Standardized Functions
The operators in the next figure accept stream arguments that
might be either open or closed streams.
Operators that accept either Open or Closed Streams
| 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 |
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The operators in the next figure accept stream arguments that
must be open streams.
Operators that accept Open Streams only
| 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 |
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| make-two-way-stream |
read-char |
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