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 OR=> :ISO8859/1-1987 OR=> (:ASCII :SAIL) OR=> ACME::PROPRIETARY-FILE-FORMAT-17 OR=> #<FILE-FORMAT :ISO646-1983 2343673>
Side Effects: None.
Affected By: None.
Exceptional Situations: None.
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.