Writing a Lisp in Java

A few days ago I saw a tutorial for how to write a programming language 
in Python.  I have been wanting to implement a language for a while and 
ported the tutorial to Java.

https://github.com/secondsun/diy_lisp_java

There is the master branch which you can fill out yourself, and a 
working branch which includes my implementation.

Clone away and let me know what you guys think.

Summers