[plt-scheme] s-expr differ

From: Jon Rafkind (rafkind at cs.utah.edu)
Date: Thu Oct 1 18:04:08 EDT 2009

I wrote a little program to highlight the differences in s-expressions. 
Right now it only works in xterm but if anyone cares about it I can 
probably get it to work in other terms and drscheme.

Here it is working in xterm (yes my theme is xp):


Code is there too


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