Sunday, April 10, 2005

An open source continuation based web server engine for Sisc Scheme has recently been announced. It's called SISCWeb and some examples are running here. SISCweb features an interactive, REPL-based web application development style. Developers can write applications interactively, without ever bouncing the server, and, insofar as it is desirable, without ever losing application state. (In fact, save for the Java portion, SISCweb itself is written interactively in a REPL.) Through the use of continuations, SISCweb does away with the page-centric execution model typical of web applications. Every time a response is sent to the browser, the program execution flow is suspended, to be then resumed from that exact point when the browser submits a request. 6:30:52 PM