Remove leading zeroes in parsed inputs

lib/nested_lines.ex

@@ -37,6 +37,7 @@ defmodule NestedLines do
   defp parse_input(line) when is_binary(line) do
     line
     |> String.split(".", trim: true)
+    |> remove_leading_zeros()
     |> convert_to_binary_list([])
   end
 
@@ -53,6 +54,13 @@ defmodule NestedLines do
     convert_to_binary_list(tail, [0 | list])
   end
 
+  @spec remove_leading_zeros(list(String.t())) :: list(String.t())
+  defp remove_leading_zeros(line) do
+    line
+    |> Enum.map(&String.replace_leading(&1, "0", ""))
+    |> Enum.reject(&(&1 == ""))
+  end
+
   @doc """
   Output a string representation of the line numbers.
 

test/nested_lines_test.exs

@@ -27,6 +27,11 @@ defmodule NestedLinesTest do
       input = NestedLines.new!(["1", "1.1", "1.2"])
       assert %NestedLines{lines: [[1], [0, 1], [0, 1]]} = input
     end
+
+    test "~W(1 1.00 1.01 1.02 1.03) returns [[1], [1], [0, 1], [0, 1], [0, 1]]" do
+      input = NestedLines.new!(["1", "1.00", "1.01", "1.02", "1.03"])
+      assert %NestedLines{lines: [[1], [1], [0, 1], [0, 1], [0, 1]]} = input
+    end
   end
 
   describe "parsing numeric values" do