What is the thinking as to how quasiquote interacts with
self-referential data structures?  Does anyone have an
algorithm to translate these?

Is this valid?  Should it be?

`#0=(,x #0#)

One could translate this into:

(let ((tmp (cons x #f)))
   (set-cdr! tmp tmp)
   tmp)

Still, a general algorithm doesn't look exactly trivial,
and I haven't seen a published algorithm that does this.
Bonus points for an algorithm that tries to re-use the
reader objects when possible (i.e. that avoids needless
copying).
--
	--Per Bothner
per@bothner.com   http://per.bothner.com/

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