iban-ex/lib/iban_ex/country/gb.ex

43 lines
1.1 KiB
Elixir

defmodule IbanEx.Country.GB do
@moduledoc """
United Kingdom IBAN parsing rules
## Examples
```elixir
iex> %IbanEx.Iban{
...> country_code: "GB",
...> check_digits: "29",
...> bank_code: "NWBK",
...> branch_code: "601613",
...> national_check: "06",
...> account_number: "31926819"
...> }
...> |> IbanEx.Country.GB.to_string()
"GB 29 NWBK 601613 31926819"
```
"""
@size 22
@rule ~r/^(?<bank_code>[A-Z]{4})(?<branch_code>[0-9]{6})(?<account_number>[0-9]{8})$/i
use IbanEx.Country.Template
@impl IbanEx.Country.Template
@spec to_string(Iban.t()) :: binary()
@spec to_string(Iban.t(), binary()) :: binary()
def to_string(
%Iban{
country_code: country_code,
check_digits: check_digits,
bank_code: bank_code,
branch_code: branch_code,
account_number: account_number
} = _iban,
joiner \\ " "
) do
[country_code, check_digits, bank_code, branch_code, account_number]
|> Enum.join(joiner)
end
end