title: Rails routes multiple optional parameters
body: <p>I have a question, how can you make multiple optional params. F.e. in my variant, I need similar thing to "/(:first_name || :last_name || middle_name || all_names)". How can I achieve and can I achieve such thing in routes? </p>
  
  <p>Btw, it'd be nice if I can do a lot of multiple params f.e.:</p>
  
  <p><code>/(:a || :b || :c)/(:d || :e)/(:n || :m)</code></p>
  
  <p>Thanks for answering.</p>