Data commit

Task/Comma-quibbling/Elixir/comma-quibbling.elixir

@@ -0,0 +1,16 @@
+defmodule RC do
+  def generate( list ), do: "{#{ generate_content(list) }}"
+
+  defp generate_content( [] ), do: ""
+  defp generate_content( [x] ), do: x
+  defp generate_content( [x1, x2] ), do: "#{x1} and #{x2}"
+  defp generate_content( xs ) do
+    [last, second_to_last | t] = Enum.reverse( xs )
+    with_commas = for x <- t, do: x <> ","
+    Enum.join(Enum.reverse([last, "and", second_to_last | with_commas]), " ")
+  end
+end
+
+Enum.each([[], ["ABC"], ["ABC", "DEF"], ["ABC", "DEF", "G", "H"]], fn list ->
+  IO.inspect RC.generate(list)
+end)