Re: more attempts at modifying define

[email protected] wrote:

>Actually, I was suggesting that you literally wrap each incoming 
>s-expression in Matthias' macro, such as:
>
>(sisc-eval `(matthias-macro ... ,expr) ...)
>  
>

I was afraid that's what you meant.  ;)

I was trying to avoid having to wrap every s-expression, but to be done 
with this what's what I've done.

All this was for something we call the Replacement Modeler.  It helps 
beginning students understand evaluation.

You can play with it here:
  
http://turadg.ucdev.org/jist/callListener.php?init-expr=%28load+%22cs3-init.scm%22%29

Then type in something like this;
 > (define (square (* x x))
 > (model (square (+ 1 (square 2)) ) )



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