title: Vim: Highlight keyword pairs in Ruby (def/end, do/end, etc)
body: <p>In one of the Eclipse-based editors that I tried out recently (I think it was RubyMine), when a Ruby keyword that either opened or closed a method or block was selected, the corresponding open/close keyword was highlighted. Similar to the way that Vim is able to highlight a corresponding open/close parenthesis.</p>
  
  <p>For instance, if I selected a 'def', it would highlight the corresponding 'end'. It also worked for do/end blocks. </p>
  
  <p>This was really handy, especially for those long and sometimes heavily nested Rspec files. </p>
  
  <p>Does anybody know how to achieve this in Vim?</p>