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stream-external-format

stream-external-format Function

Syntax:

stream-external-format stream → format

Arguments and Values:

stream—a file stream.

format—an external file format.

Description:

Returns an external file format designator for the stream.

Examples:

(with-open-file (stream "test" :direction :output) 
  
  
  (stream-external-format stream)) 
→ :DEFAULT 
<i><sup>or</sup>→</i> :ISO8859/1-1987 
<i><sup>or</sup>→</i> (:ASCII :SAIL) 
<i><sup>or</sup>→</i> ACME::PROPRIETARY-FILE-FORMAT-17 
<i><sup>or</sup>→</i> #<FILE-FORMAT :ISO646-1983 2343673>

See Also:

the :external-format argument to the function open and the with-open-file macro.

Notes:

The format returned is not necessarily meaningful to other implementations.

Expanded Reference: stream-external-format​

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(stream-external-format )