73 lines
2.0 KiB
Elixir
73 lines
2.0 KiB
Elixir
defmodule IbanEx.Country.Template do
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@moduledoc false
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alias IbanEx.Iban
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@type size() :: non_neg_integer()
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@type rule() :: Regex.t()
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@type country_code() :: <<_::16>> | atom()
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@type joiner() :: String.t()
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@callback size() :: size()
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@callback rule() :: rule()
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@callback incomplete_rule() :: rule()
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@callback to_string(Iban.t(), joiner()) :: String.t()
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@callback to_string(Iban.t()) :: String.t()
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defmacro __using__(_opts) do
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quote do
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alias IbanEx.Iban
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@behaviour IbanEx.Country.Template
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@impl IbanEx.Country.Template
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@spec to_string(Iban.t()) :: binary()
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@spec to_string(Iban.t(), binary()) :: binary()
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def to_string(
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%Iban{
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country_code: country_code,
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check_digits: check_digits,
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bank_code: bank_code,
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branch_code: _branch_code,
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national_check: _national_check,
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account_number: account_number
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} = _iban,
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joiner \\ " "
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) do
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[country_code, check_digits, bank_code, account_number]
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|> Enum.join(joiner)
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end
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@impl IbanEx.Country.Template
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@spec size() :: integer()
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def size(), do: @size
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@doc """
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Return Regex for parsing complete BBAN (part of IBAN string)
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"""
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@impl IbanEx.Country.Template
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@spec rule() :: Regex.t()
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def rule(), do: @rule
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@doc """
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Return Regex without trailing “$” for parsing incomplete BBAN (part of IBAN string) (for partial suggestions)
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"""
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@impl IbanEx.Country.Template
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@spec incomplete_rule() :: Regex.t()
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def incomplete_rule() do
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source =
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@rule
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|> Regex.source()
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|> String.slice(0..-2//1)
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|> String.replace("{", "{0,")
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opts =
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@rule
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|> Regex.opts()
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Regex.compile!(source, opts)
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end
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defoverridable to_string: 1, to_string: 2, size: 0, rule: 0, incomplete_rule: 0
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end
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end
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end
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