Re: with-output-to-string

[Alan Snyder <snyder%hplsny@hplabs.ARPA>]

    In some implementations WITH-OUTPUT-TO-STRING does not work by calling
    MAKE-STRING-OUTPUT-STREAM, since the former stream has dynamic extent
    and the latter stream has indefinite extent.

That makes sense, but the ability for a user to create an output stream
to an existing string would still be useful.

    The extension I think you are proposing is reasonable as an extension.
    Do you propose that GET-OUTPUT-STREAM-STRING be allowed on that type
    of stream?

That is not required, but would seem useful.
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