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A PCRE internal error occured. This might be caused by a faulty plugin

====== Function ECHO-STREAM-INPUT-STREAM, ECHO-STREAM-OUTPUT-STREAM ====== ====Syntax==== * **echo-stream-input-stream ** //echo-stream// → //input-stream// * **echo-stream-output-stream** //echo-stream// → //output-stream// ====Arguments and Values==== //echo-stream// - an //[[CL:Glossary:echo stream]]//. //input-stream// - an //[[CL:Glossary:input]]// //[[CL:Glossary:stream]]//. //output-stream// - an //[[CL:Glossary:output]]// //[[CL:Glossary:stream]]//. ====Description==== **echo-stream-input-stream** returns the //[[CL:Glossary:input]]// //[[CL:Glossary:stream]]// from which //echo-stream// receives input. **echo-stream-output-stream** returns the //[[CL:Glossary:output]]// //[[CL:Glossary:stream]]// to which //echo-stream// sends output. ====Examples==== None. ====Side Effects==== None. ====Affected By==== None. ====Exceptional Situations==== None. ====See Also==== None. ====Notes==== None. \issue{STREAM-ACCESS:ADD-TYPES-ACCESSORS}