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- To: cl-subsets@su-ai
- Subject: Martin's questions
- From: brown@DEC-HUDSON
- Date: Thu, 15 Nov 84 08:37:23 EST
1. What LISP or LISPs do you currently use?
Vax Lisp (Dec Common Lisp) on a 780.
2. Are you primarily a user or an implementor?
4. If you are a common LISP user or implementor, do you have a plan to
provide a compatibility route for "foreign" LISPS, such as by
mechanical translation, or compatibility module?
Not currently, we hope that such packages find their way into
the Yellow Pages (and might even be willing to help fund the
generation of these packages).
5. If your plan includes the identification of a subset CL
(perhaps because you only need or can only afford to implement
a subset on your machine, in your compatibility module, or
could you summarize what criteria you are using to define your subset?
We currently have no plans to produce a subset of Common Lisp.
We distinguish between a subset and a self-contained program written
in Common Lisp which does not include all the language. We are
considering various mechanism which would allow a user to create
an executable program which would require less resource (memory)
than the full system.
7. Do you see a single subset as sufficient, or do you envision a family
of subsets, appropriate for different reasons?
I hope that, at least initially, one subset would be sufficient.
Any implementation could say "we implement Subset Common Lisp
8. Do you have a subset proposal ready to present to this group, or are
you working on one?
The main thing I think is that the subset should be a true subset;
i.e. a program that is written purely in the subset is gaurenteed
to work in an implementation of full language. I believe this
requires that the subset be lexically scoped.