refactor: ♻️ refactor main

Author: maxbarsukov

lib/main.ex

@@ -12,12 +12,7 @@ defmodule InterpolationApp.Main do
       System.halt()
     end
 
-    argv =
-      Enum.map(args, fn arg -> String.split(arg, "--") end)
-      |> List.flatten()
-      |> Enum.filter(fn s -> s != "" end)
-
-    case ConfigParser.parse_args(argv) do
+    case ConfigParser.parse_args(extract_args(args)) do
       {:ok, config} ->
         Repl.start(config)
 
@@ -28,6 +23,13 @@ defmodule InterpolationApp.Main do
     end
   end
 
+  defp extract_args(args) do
+    args
+      |> Enum.map(fn arg -> String.split(arg, "--") end)
+      |> List.flatten()
+      |> Enum.filter(fn s -> s != "" end)
+  end
+
   defp help do
     """
     usage: interpolation-app [options] --methods=<method1,method2,...> --step=<step>