Partial IBAN parser added
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@ -9,7 +9,10 @@ defmodule IbanEx.Country.Template do
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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 rules() :: []
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@callback rules_map() :: %{}
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@callback bban_fields() :: [atom()]
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@callback bban_size() :: non_neg_integer()
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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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@ -47,26 +50,50 @@ defmodule IbanEx.Country.Template do
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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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@spec bban_size() :: integer()
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def bban_size() do
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{_rules, bban_size} = calculate_rules()
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bban_size
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end
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@impl IbanEx.Country.Template
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@spec bban_fields() :: []
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def bban_fields(), do: rules_map() |> Map.keys()
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@impl IbanEx.Country.Template
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@spec rules_map() :: %{}
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def rules_map(), do: rules() |> Map.new()
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@impl IbanEx.Country.Template
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@spec rules() :: []
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def rules() do
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{rules, _bban_size} = calculate_rules()
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rules
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end
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defp calculate_rules() do
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scanner = ~r/\(\?\<([\w_]+)\>(([^{]+)\{(\d+)\})\)/i
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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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{list, bban_length} =
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Regex.scan(scanner, source)
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|> Enum.reduce({[], 0}, fn [_part, k, r, _syms, l], {list, position} = acc ->
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key = String.to_atom(k)
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{:ok, regex} = Regex.compile(r, "i")
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length = String.to_integer(l)
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left = position
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right = left + length - 1
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{[{key, %{regex: regex, range: left..right}} | list], right + 1}
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end)
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Regex.compile!(source, opts)
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{Enum.reverse(list), bban_length}
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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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defoverridable to_string: 1, to_string: 2, size: 0, rule: 0
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end
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end
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end
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@ -20,8 +20,9 @@ defmodule IbanEx.Parser do
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@spec parse({:ok, binary()}) :: iban_or_error()
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def parse({:ok, iban_string}), do: parse(iban_string)
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@spec parse(binary()) :: iban_or_error()
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def parse(iban_string) do
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def parse(iban_string, options \\ [incomplete: false])
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def parse(iban_string, incomplete: false) do
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case Validator.validate(iban_string) do
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{:ok, valid_iban} ->
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iban_map = %{
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@ -41,14 +42,35 @@ defmodule IbanEx.Parser do
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end
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end
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def parse(iban_string, incomplete: true) do
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iban_map = %{
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country_code: country_code(iban_string),
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check_digits: check_digits(iban_string)
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}
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bban = bban(iban_string)
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case Country.is_country_code_supported?(iban_map.country_code) do
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true ->
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result =
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parse_bban(bban, iban_map.country_code, incomplete: true)
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|> Map.merge(iban_map)
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{:ok, struct(Iban, result)}
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false ->
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{:error, :unsupported_country_code}
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end
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end
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@spec parse_bban(binary(), <<_::16>>) :: map()
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def parse_bban(bban_string, country_code, options \\ [incomplete: false])
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def parse_bban(bban_string, country_code, incomplete: true) do
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case Country.is_country_code_supported?(country_code) do
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true ->
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Country.country_module(country_code).incomplete_rule()
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|> parse_bban_by_regex(bban_string)
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parse_bban_by_rules(bban_string, Country.country_module(country_code))
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false ->
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%{}
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end
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@ -59,12 +81,20 @@ defmodule IbanEx.Parser do
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true ->
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Country.country_module(country_code).rule()
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|> parse_bban_by_regex(bban_string)
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false ->
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%{}
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end
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end
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defp parse_bban_by_rules(bban_string, country_module) do
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for {field, rule} <- country_module.rules,
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into: %{},
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do: {field, normalize_and_slice(bban_string, rule.range)}
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end
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defp parse_bban_by_regex(_regex, nil), do: %{}
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defp parse_bban_by_regex(regex, bban_string) do
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case Regex.named_captures(regex, bban_string) do
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map when is_map(map) ->
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