Add option to make awnsers to case sensitive

Author: Selvaticus

lib/loki/shell.ex

@@ -17,13 +17,14 @@ defmodule Loki.Shell do
   Ask user input with given message. Returns tuple with parsed options.
   """
   @spec ask(String.t) :: {List.t, List.t, List.t}
-  def ask(message) when is_input(message) do
-    args = format(IO.gets message)
+  def ask(message, opts \\ [])
+  def ask(message, opts) when is_input(message) do
+    args = format(IO.gets(message), opts)
     OptionParser.parse([args])
   end
 
-  @spec ask(any) :: none()
-  def ask(_any), do: raise ArgumentError, message: "Invalid argument, accept String or List!"
+  @spec ask(any, any) :: none()
+  def ask(_message, _ops), do: raise ArgumentError, message: "Invalid argument, accept String or List!"
 
 
   @doc """
@@ -219,6 +220,8 @@ defmodule Loki.Shell do
 
 
   @spec format(String.t) :: String.t
-  defp format(input), do: String.replace(input, "\n", "") |> String.downcase
+  defp format(input, opts \\ [])
+  defp format(input, [sensitive: true]), do: String.replace(input, "\n", "")
+  defp format(input, _opts), do: String.replace(input, "\n", "") |> String.downcase
 end
 

test/loki/shell_test.exs

@@ -15,6 +15,15 @@ defmodule Loki.ShellTest do
       assert_received {[], ["answer"], []}
     end
 
+    test "#ask sensitive input" do
+      assert capture_io("AnSwEr", fn ->
+        awnser = ask("Test question?", sensitive: true)
+        send self(), awnser
+      end) == "Test question?"
+
+      assert_received {[], ["AnSwEr"], []}
+    end
+
     test "#yes? yes input" do
       assert capture_io("yes", fn ->
         awnser = yes?("Test question?")