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    Looking around a little bit it doesn’t seem to have call with current continuation which is about the only thing that makes a Scheme implementation interesting. I’ve found implementing Scheme with TCO and call/cc is a useful way to compare languages.

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      PLAI is a good book for delving deep into that sort of thing.

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        Ugh, while I agree, call/cc is also a pretty demanding feature for compiler writers. If you somehow missed call/cc in the spec and noticed it a ways into your implementation, there’s a good chance you’ll have to rethink a lot of work.