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surgex lib surgex parser parsers id_parser.ex
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lib/surgex/parser/parsers/id_parser.ex

defmodule Surgex.Parser.IdParser do
@moduledoc false
alias Surgex.Parser.IntegerParser
@type errors :: :invalid_identifier | IntegerParser.errors()
@spec call(nil) :: {:ok, nil}
@spec call(String.t()) :: {:ok, integer} | {:error, errors}
def call(nil), do: {:ok, nil}
def call(input) when is_binary(input) do
case IntegerParser.call(input) do
{:ok, integer} when integer > 0 -> {:ok, integer}
{:ok, _invalid_integer} -> {:error, :invalid_identifier}
{:error, reason} -> {:error, reason}
end
end
end