{ $description "Creates a duplex stream. Writing to a duplex stream will write to " { $snippet "out" } ", and reading from a duplex stream will read from " { $snippet "in" } ". Closing a duplex stream closes both the input and output streams." } ;
{ $description "Calls the quotation in a new dynamic scope, with both " { $link input-stream } " and " { $link output-stream } " rebound to " { $snippet "stream" } ". The stream is closed if the quotation returns or throws an error." } ;
{ $description "Calls the quotation in a new dynamic scope, with both " { $link input-stream } " and " { $link output-stream } " rebound to " { $snippet "stream" } "." }
{ $notes "This word does not close the stream. Compare with " { $link with-stream } "." } ;
HELP:<encoder-duplex>
{ $values { "stream-in""an input stream" }
{ "stream-out""an output stream" }
{ "encoding""an encoding descriptor" }
{ "duplex""an encoded duplex stream" } }
{ $description "Wraps the given streams in an encoder or decoder stream, and puts them together in a duplex stream for input and output. If either input stream is already encoded, that encoding is stripped off before it is reencoded. The encoding descriptor must conform to the " { $link "encodings-protocol" } "." }