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Hopefully this is at least par for the course :in_hole:. @Ninigi I’m interested in what you’d use instead of do_ here.

defmodule Example do
  def segment_path(path) do
    path |> String.split("/", trim: true) |> do_segment_path("")
  end

  defp do_segment_path([], _path), do: []

  defp do_segment_path([current | rest], path) do
    new_path = "#{path}/#{current}"
    [{current, new_path} | do_segment_path(rest, new_path)]
  end
end

Running:

iex(1)> Example.segment_path("path/to/segment")
[{"path", "/path"}, {"to", "/path/to"}, {"segment", "/path/to/segment"}]