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Clearing the screen and other such things.
- To: Kent M Pitman <KMP@SCRC-STONY-BROOK.ARPA>
- Subject: Clearing the screen and other such things.
- From: Rob MacLachlan <RAM@CMU-CS-C.ARPA>
- Date: Sun, 28 Jul 1985 21:31:00 -0000
- Cc: COMMON-LISP@SU-AI.ARPA
- In-reply-to: Msg of 26 Jul 1985 14:49-EDT from Kent M Pitman <KMP at SCRC-STONY-BROOK.ARPA>
It may or may not be a good idea to have a Common Lisp virtual
terminal, as is being suggested, but in any case, I think it is
important that this idea not be confused with the default stream
terminal I/O. I think it would be a bad idea to force the default
stream interaction into a fixed-width character-oriented model.
Whatever interface is chosen should be willing to admit the
possibility of virtual terminal emulation being done in a totally
different fashion that default terminal I/O.
As a case in point, default terminal interaction in Spice Lisp is
done by a remote procedure call interface to the typescript server,
which is basically a base editor. The Typescript server doesn't
provide any facility such as "cursor positioning" since this doesn't
fit into the stream-oriented paradigm on which it is based. If we
wanted to provide virtual terminal emulation, we would have to do it
using a totally different mechanism, operating on a different piece of