[racket] Line folding in DrRacket

From: Danny Yoo (dyoo at hashcollision.org)
Date: Thu Apr 25 15:12:32 EDT 2013

DrRacket supports a kind of folding on an s-expression basis, rather
than on a line basis.  If you right click on an expression, you should
see an option: "Collapse S-expression".

Posted on the users mailing list.