[plt-scheme] self-referential data structures

On Mar 6, 2009, at 2:13 PM, Raoul Duke wrote:

> neat! something you could post on the web for us to look at?

I already had a functional list class, so the new class simply has  
two instance variables "left" and "right" of "list" type; the methods  
are quite straightforward.  It came to about 300 lines of code, 100  
of which is test suites, and much of which is javadoc comments or  
"just a curly-brace alone on a line"; the "real code" for the  
implementation is probably under 100 lines.

I'd rather not post it on the Web in case somebody wants to assign it  
as homework.

Stephen Bloch
sbloch at adelphi.edu