Environments

["Sjoerd van Leent Privé" <svanleent@gmail.com>]

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Hi Everyone,

What I like to do is to let the user give a "driver" library and pass 
that "driver" library around which implements a certain procedure. Using 
the eval procedure together with a small instruction and a ad-hoc 
generated environment would let the software be pretty free of things 
flying around with ill side-effects. Anyone an idea how I could do this 
in a portable way?

I have been trying to do this using the construct (environment, 
/import-spec/), however, this doesn't appear to include the default 
things which the "guile" library provides (such as quote, unquote, 
quasiquote and the likes). When using the (scheme-report-enviroment 5), 
it appears not to be possible to pass along additional import-spec elements.

I know it is possible to pass "guile" along, however, this is not very 
elegant in portability.

Also, I would like the environment to be destroyed afterwards (as I 
don't want the environment to leak unwanted side-effects).

Anyone an idea about how to do this?

Thanks in advance,
Sjoerd

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