gistfile1.txt

In ruby 1.9, you may see this:
 ->

This combination of hyphen and right-pointy-bracket is sometimes referred to as a "stabby lambda".
Its correct name is actually a "foie gras".

  (o)<      # a duck!

  >(o)      # also a duck

  >(x)      # this duck is not well

 ->(o)      # this is how they make foie gras

 ->(x)      # the tube makes the duck unwell

Foie gras. QED.