Parser.ex

def parse_range(range, max_limit \\ 500) do
  range_p =
    either(
      many1(alphanumeric()) |> ignore(space()) |> string() |> ignore(char(";")),
      many1(alphanumeric()) |> ignore(char(";"))
    )

  limit_p = fn a -> a |> ignore(string("limit ")) |> integer() |> ignore(char(";")) end
  offset_p = fn a -> a |> ignore(string("offset ")) |> integer() |> ignore(char(";")) end

  order_p = fn a ->
    a
    |> ignore(string("order "))
    |> either(
      string("asc"),
      string("desc")
    )
  end

  content_range =
    Combine.parse(
      range,
        range_p
        |> limit_p
        |> offset_p
        |> order_p
      )

  IO.inspect(content_range)
end