Goo

See http://people.csail.mit.edu/jrb/goo/wiki/index.php/GooWhy For information about why you should use goo.

http://people.csail.mit.edu/jrb/goo/ Is the official website.

Sample goo program

 ;;The following is a sample goo program 
 (df foo (n) (op incf n _)) 
 ;;The following is the same program as in scheme. 
  
 (define (foo n)  
   (lambda (i)  
     (set! n (+ n i)) n))