I want to write an HttpHandler that compiles CoffeeScript code on-the-fly and sends the resulting JavaScript code. I have tried MS [JScript][1] and IronJS without success. I
You could simply write a port of it to C#. I have ported Jison to C# (which is the underlying project that makes CoffeeScript run). I would think it may be a bit different, but both Jison parsers work the same.
I have not pull requested it back yet to Jison's main architecture, but will be doing so soon.
https://github.com/robertleeplummerjr