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JSCL is a Common Lisp to JavaScript compiler, which is bootstrapped from Common Lisp and executed from the browser.

JSCL

You can try a demo online here, or you can install the JSCL npm package:

npm install -g jscl

to run jscl-repl in NodeJS.

If you want to hack JSCL, you will have to download the repository

git clone https://github.com/jscl-project/jscl.git

load jscl.lisp in your Lisp, and call the bootstrap function to compile the implementation itself:

(jscl:bootstrap)

It will generate a jscl.js file in the top of the source tree. Now you can open jscl.html in your browser and use it.

JSCL is and will be a subset of Common Lisp. Of course it is far from complete, but it supports partially most common special operators, functions and macros. In particular:

• Multiple values

• Explicit control transfers tagbody and go

• Static and dynamic non local exit catch, throw; block, return-from.

• Lexical and special variables. However, declare expressions are missing, but you can proclaim special variables.

• Optional and keyword arguments

• SETF places

• Packages

• The LOOP macro

• CLOS

• The format function

• Others

The compiler is very verbose, some simple optimizations or minification could help to deal with it.

Feel free to hack it yourself