Learnelixir.tv - Exercise 7

defmodule Read do
  def read do
    case File.read("sample.txt") do
      { :ok, body } ->
        String.split(body, "\n")
        |> Stream.filter(&String.starts_with?(&1, "d"))
        |> Enum.sort(&(byte_size(&1) >= byte_size(&2) ))
        |> Stream.each(&IO.puts(String.capitalize(&1)))
        |> Stream.run
      { :error, reason } ->
        IO.puts reason
    end
  end
end