Initial commit

lib/iban_ex/commons/commons.ex

@@ -0,0 +1,16 @@
+defmodule IbanEx.Commons do
+  @spec normalize(binary()) :: binary()
+  def normalize(string) do
+    string
+    |> to_string()
+    |> String.replace(~r/\s*/i, "")
+    |> String.upcase()
+  end
+
+  @spec normalize_and_slice(binary(), Range.t()) :: binary()
+  def normalize_and_slice(string, range) do
+    string
+    |> normalize()
+    |> String.slice(range)
+  end
+end