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Index
echo-stream-input-stream Streams Dictionary concatenated-stream-streams
Function

make-echo-stream

make-echo-stream input-stream output-stream ⇒ echo-stream

Arguments and Values

input-streaman input stream.
output-streaman output stream.
echo-streaman echo stream.

Description

Creates and returns an echo stream that takes input from input-stream and sends output to output-stream.

Examples

 (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"

See Also

echo-stream-input-stream; echo-stream-output-stream, echo-stream-output-stream, make-two-way-stream

Backlinks

compile-file-pathname, echo-stream, logical-pathname, Other Subclasses of Stream, Stream Arguments to Standardized Functions, Streams Dictionary, Symbols in the COMMON-LISP Package, translate-logical-pathname