2010/12/4 Drew Adams <drew.adams@oracle.com>

> > can you create an obarray (different of main obarr) and intern
> > within it only a few symbols (in this case the matter ), and
> > evaluate within that environment ?
>
> Yes.  That's the idea behind having separate obarrays.
>
> There are no doubt examples of this in the Lisp sources.
> If not, here is one: http://www.emacswiki.org/emacs/synonyms.el.
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Thanks.

Tomorrow I send the minimal completions I need for tabs within C code, and
the lisp scripts that define tabs as window-configuration.