Data commit

Task/Read-a-file-line-by-line/Elixir/read-a-file-line-by-line.elixir

@@ -0,0 +1,23 @@
+  defmodule FileReader do
+    # Create a File.Stream and inspect each line
+    def by_line(path) do
+      File.stream!(path)
+        |> Stream.map(&(IO.inspect(&1)))
+	|> Stream.run
+      end
+
+    def bin_line(path) do
+    # Build the stream in binary instead for performance increase
+      case File.open(path) do
+        # File returns a tuple, {:ok,file}, if successful
+        {:ok, file} ->
+	  IO.binstream(file, :line)
+	    |> Stream.map(&(IO.inspect(&1)))
+	    |> Stream.run
+	# And returns {:error,reason} if unsuccessful
+	{:error,reason} ->
+	# Use Erlang's format_error to return an error string
+	  :file.format_error(reason)
+      end
+    end
+  end