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Yet another simple macro for Vim I've become quite fond of. Have you ever written a single-line block like

 myobj.each{|x| do whatever with x }

only to realize later that you actually wanted to do quite a bit more and you need to turn that into the following?

 myobj.each do |x|
   do stuff
   and some more
 end

Or maybe you're refactoring some code and see that a multi-line block can be collapsed into a single line using method chaining?

This is what I wanted: