Slava,

Since I have the stack-display on by default, I noticed a new persistent item 
on the retain stack:

        [ prompt. listener-hook get call listen ]

I guess technically it's OK for there to be this object there during a users 
listener session. However, it seemes cleaner for the stacks to be clear by 
default. I guess I can get used to it. :-) But a new user might wonder, "why 
is this object always on the retain stack? What happens if I remove it?". The 
listener will break of course.

I see that this is happening because of until-quit:

: until-quit ( quot -- )
    quit-flag get
    [ quit-flag off drop ]
    [ dup slip until-quit ] if ; inline

Ed

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