Solve day 5

lib/aoc2024/utils.ex

@@ -1,16 +1,20 @@
 defmodule Aoc2024.Utils do
-  def parse_rows_of_integers(input) do
+  def parse_integers(input, separator \\ ~r/\s+/) do
+    input
+    |> String.split(separator)
+    |> Enum.map(fn int_str ->
+      case int_str |> Integer.parse() do
+        {int, ""} -> int
+        _ -> raise "Invalid integer #{int_str}"
+      end
+    end)
+  end
+
+  def parse_rows_of_integers(input, separator \\ ~r/\s+/) do
     input
     |> String.split("\n", trim: true)
     |> Enum.map(fn line ->
-      line
-      |> String.split(~r/\s+/)
-      |> Enum.map(fn int_str ->
-        case int_str |> Integer.parse() do
-          {int, ""} -> int
-          _ -> raise "Invalid integer #{int_str}"
-        end
-      end)
+      parse_integers(line, separator)
     end)
   end
 end