Split a Ruby Enumerable into chunks divided by an arbitary number of patterns

example.rb

%w{ a b c d e f }.split("c", "e")

# => [["a", "b"], ["c", "d"], ["e", "f"]]

split_enumerable.rb

module Enumerable

  def split(*pattern)
    inject([[]]) do |results, item|
      if pattern.first && pattern.first.match(item)
        results << []
        pattern.shift
      end
      results.last << item
      results
    end
  end

end