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Bootstrap Scheme is a quick and very dirty Scheme interpreter. Its *only* intended use is to compile a self-compiling Scheme-to-Assembly or Scheme-to-C compiler the first time. Bootstrap Scheme doesn't have many features a Scheme system usually has. It doesn't have numbers other than integers. It doesn't have vectors. It definitely doesn't have a module system, call/cc, macros, dynamic-wind or any other advanced Scheme features. Bootstrap Scheme is slow. The implementation is an abstract syntax tree node walker with no optimizations. There is no point in making a node walking interpreter any better than the absolute base necessity as the fundamental design of a node walker would never be used in production. Small, easy to read source code is far more important than anything else. Bootstrap Scheme revels in the opportunity to be very dirty Scheme. ---- Example build and use. $ cd bootstrap $ make cc -Wall -ansi -o scheme scheme.c $ ./scheme Welcome to your Scheme REPL. Use ctrl-c to exit. > #t #t > -123 ; comment -123 > #\c #\c > "adsf" "asdf" > (quote ()) () > (quote (0 . 1)) (0 . 1) > (quote (0 1 2 3)) (0 1 2 3) > (quote asdf) asdf > (define a 1) ok > a 1 > (set! a 2) ok > a 2 > (if #t 1 2) 1 > (+ 1 2 3) 6 > + #<procedure> > ^C $ ---- For more information see: http://peter.michaux.ca/articles/scheme-from-scratch-introduction ---- See the LICENSE file for legal information.