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From: wmb@MITCH.ENG.SUN.COM
Newsgroups: comp.lang.forth
Subject: Vocabularies
Message-ID: <9008031606.AA06458@ucbvax.Berkeley.EDU>
Date: 3 Aug 90 07:47:59 GMT
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Reply-To: wmb%MITCH.ENG.SUN.COM@SCFVM.GSFC.NASA.GOV
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> I'm curious if anyone knows of a system that does these things
> [enumerating words in vocabulary, save/restore search order,
> remove single word from vocabulary, search just one vocabulary]?

Sure, my system does all these things.  I'm sure there must be many
others that do at least some of them.  I have seen (non-portable, of
course) code fragments for doing some of these things on particular
systems in published code.

> Would it still be Forth as we know it?

Sure.  Adding these capabilities doesn't detract from what is already
there, unless "Forth as we know it" implies "missing obvious functionality"

> Are vocabularies *really* part of Forth, or something that is added on
> on top of it?

I claim yes, based on the fact that nearly all Forth systems have them
in some form or other.  Unfortunately, there is very little consistency
among implementations in this area.

Mitch