jwacs stands for Javascript With Advanced Continuation Support. It's a program transformer that converts an extended Javascript syntax to regular Javascript. The extended syntax provides the ability to capture and resume first-class continuations.

James Wright is the author. See the project page for details.

It is installable using Quicklisp:

(ql:quickload :jwacs)

The darcs repository is publicly available for those who want to be able to track the up-to-the-minute, possibly-broken bleeding-edge. To get a copy of the current darcs repo:

darcs get http://chumsley.org/jwacs/unstable