snippet.ex

defp generate_exid(title) do
  clip_exid =
    title
    |> String.replace_trailing(" ", "")
    |> String.downcase
    |> String.slice(0..5)
  
  chars = (?a..?z |> Enum.into([]) |> Enum.map(&to_string([&1]))) ++ (1..9 |> Enum.to_list)
  random_string = Enum.map(0..3, fn(_) -> Enum.random(chars) end) |> Enum.join("")
  "#{clip_exid}-#{random_string}"
end