fun.rb

class Symbol
  def | other
    if other.is_a? Proc
      -> arg { other.call(arg.send(self)) }
    else
      -> arg { arg.send(self).send(other) }
    end
  end

  def call *args
    -> arg { arg.send(self, *args) }
  end
end

class Proc
  def | other
    if other.is_a? Proc
      -> arg { other.call(call(arg)) }
    else
      -> arg { call(arg).send(other) }
    end
  end

  def < arg
    self.call arg
  end
end

p :split | :take.(10) | :reverse < File.read($0)