A while ago I noted that macros are the tool for handling code. I have since then realized just how powerful they are when left to their own devices. Previously I believed that quasiquotation would be hard to implement, having to seek the whole tree for unquotes, but the macro is simply
(define-syntax quasiquote (syntax-rules (unquote unquote-splicing) ((_ ,form) form) ((_ (,@forms rest ...)) (append forms `(rest ...))) ((_ (lit lits ...)) (cons `lit `(lits ...))) ((_ a) 'a)))
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