Pattern matching in Ruby with Case Pattern matching, ala Erlang or Haskell, is a language feature near and dear to my heart. Dean Wampler has a great explanation of how to use the Omnibus Concurrency Library to play with pattern matching in Ruby, even if it’s a little odd. Share this with your friends:TwitterRedditTumblrFacebook By Adam Keys Telling a joke. Typing. View all of Adam Keys's posts.