I am releasing CPSCM, a new Scheme compiler based on classic CPS conversion and trampolines. It will eventually support multiple backends (Javascript and Java are in the works), but currently it supports Scheme to Common Lisp translation. You can see it work right from your browser on the online demo page (no large jobs, please), or you can download and run it by following the instructions on the CPSCM homepage.

Macro-expansion is delegated to Al Petrofsky’s alexpander, which means that CPSCM has full syntax-rules support from the start. I’ll probably add define-macro support at some point. I don’t feel up to integrating syntax-case, but if anyone wants to contribute, it would be greatly appreciated.

Other than this, CPSCM supports full continuations, including correct call/cc + dynamic-wind interaction, and SRFI-0. It still lacks eval, error protection in dynamic-wind, streams, load, and multiple-file source facilities. An interesting point is that as soon as CPSCM is able to compile itself, eval can be added in (though the environment functions other than interaction-environment will be problematic.)

As with scsh-regexp, I will use Google Code Project Hosting. Some people have questioned this choice (and Google Code has earned mixed reviews); compared to Sourceforge, Google Code has a big advantage: they don’t make you fill out multi-page forms (and wait for approval!) for the “privillege” of uploading an open-source project.