<div class="gmail_quote">On Mon, Feb 20, 2012 at 00:10, Eli Barzilay <<a href="mailto:eli@barzilay.org">eli@barzilay.org</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> 20 minutes ago, Rodolfo Carvalho wrote: > It is possible to replace a pattern like this: > > (cond > [..a..] > [else (cond > [..b..] > ...)]) > > With this simpler: > > (cond > [..a..] > [..b..] > ...) Speaking about such transformations and about things like (if E #t #f), I have some code which I run against student submissions to find style problems like these, and using syntax transformations means that it's easy to make it actually suggest the transformation. For example, feeding it this code: [...]</blockquote><div> </div><div> Sounds really interesting! Maybe it would be like a "Racket-lint" ;) BTW I just found the nested-cond pattern appearing on HtDP, throughout section 9: <a href="http://htdp.org/2003-09-26/Book/curriculum-Z-H-13.html">http://htdp.org/2003-09-26/Book/curriculum-Z-H-13.html</a> </div></div>