On Mar 7, 2007, at 4:33 PM, William D Clinger wrote:
Jonathan Rees's original implementation of the "Macros
that Work" algorithm for hygienic macro expansion was
a pure interpreter [1]. His approach would have worked
fine for R5RS Scheme, but would be disallowed by the
requirements of the 5.92 draft.
Thanks for the pointer. Just to make things clear, what are the 5.92-
draft requirements that disallow intermixing expansion and
evaluation? Is it only the requirement to raise a syntax violation
when certain errors are detected (such as an assignment to an
exported variable or a reference to an unbound identifier), or is
there more to it than that?
Thanks,
Aziz,,,
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