Node: make-echo-stream, Next: concatenated-stream-streams, Previous: echo-stream-input-stream, Up: Streams Dictionary
make-echo-stream
input-stream output-stream => echo-stream
input-stream--an input stream.
output-stream--an output stream.
echo-stream--an echo stream.
Creates and returns an echo stream that takes input from input-stream and sends output to output-stream.
(let ((out (make-string-output-stream))) (with-open-stream (s (make-echo-stream (make-string-input-stream "this-is-read-and-echoed") out)) (read s) (format s " * this-is-direct-output") (get-output-stream-string out))) => "this-is-read-and-echoed * this-is-direct-output"