Projects / Subs

Subs

Subs is a Scheme Lisp interpreter written in C++. The implementation is incomplete and naive, but aims to implement enough to be able to run every code sample in Structure and Interpretation of Computer Programs.

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  •  02 Feb 2011 11:23

    Release Notes: This release supports quoting, and adds the eq? procedure.

    •  19 Jan 2011 10:29

      Release Notes: Support was added for for-each, load, begin, filter, odd?, even?, and equal? as well as cadr, cddr, etc. Pretty pictures may now be created using the "painter" system from SICP, and written as SVGs. Better error messages are printed when incorrect Scheme is entered.

      •  11 Oct 2010 22:47

        Release Notes: This release adds support for list, map, list-ref, pair?, null?, nil, min, and max functions, and allows overriding built-in keywords with your own functions.

        •  07 Oct 2010 04:49

          Release Notes: This release adds supports for abstract data via cons, car, and cdr.

          •  01 Oct 2010 09:10

            Release Notes: This release supports the let operator, basic trigonometric operations, positive?, negative?, and zero? operators, and allows returning procedures from functions.

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