I have added a Javascript backend for CPSCM. The compiled code runs either inside a browser or in Rhino. The Bubble sort example demonstrates compiled Scheme code running “in a web page” and interfacing with native Javascript code (the latter provides DHTML functionality). You can call Scheme functions from Javascript and Javascript functions from Scheme with no restrictions (even continuations will work correctly). The explanations on the bubblesort page should get you started, in case you want to roll your own Scheme programs.

I have made updates and fixes to all backends. There are still missing pieces, but at least now they are summarized on the conformance page, so you know what to expect. Among the improvements, there is an error function which interacts correctly with dynamic-wind. I have borrowed the concept of failure continuations from SISC; you can access them via with-failure-continuation.

Finally, since Javascript console I/O is not standardized, I have implemented SRFI-6 output strings. By default, (display) and its family assume you are using Rhino and try to print to standard output. You can switch to a string using (current-output-port (open-output-string)), and at any point retrieve the accumulated output using (get-output-string (current-output-port)).