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Pseudo Scheme: Scheme Implemented on Top of Common Lisp
MU Artificial Intelligence Repository Pseudo Scheme: Scheme implemented on top of Common Lisp. lang/scheme/impl/pseudo/ PseudoScheme is an implementation of Scheme written in Common Lisp.
Scheme programs can be executed using the Common Lisp evaluator or compiler because Lisp sees Scheme special forms as macros that invoke the translator. Pseudoscheme does not support first-class continuations (CALL/CC isn't as general as in a true Scheme), and it has only partial support for tail recursion and the number system, but beyond these limitations it scrupulously implements all of IEEE (and Revised^4) Scheme. It also provides an implementation of the new "hygienic" high-level macro facility (Clinger and Rees, POPL '91).
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