extractIBAN function

ExtractIBANResult extractIBAN(String iban)

extractIBAN

// returns `ExtractIBANResult(iban: "NL91ABNA0417164300", bban: "ABNA0417164300", countryCode: "NL", valid: true, accountNumber: '0417164300', bankIdentifier: 'ABNA')`
ibantools.extractIBAN("NL91 ABNA 0417 1643 00");

Implementation

ExtractIBANResult extractIBAN(String iban) {
  ExtractIBANResult result = ExtractIBANResult(iban: iban);
  final String? eFormatIBAN = electronicFormatIBAN(iban);
  result = result.copyWith(iban: eFormatIBAN ?? iban);
  if (eFormatIBAN != null && isValidIBAN(eFormatIBAN)) {
    result = result.copyWith(
        bban: eFormatIBAN.substring(4),
        countryCode: eFormatIBAN.substring(0, 2),
        valid: true);
    final CountrySpec? spec = countrySpecs[result.countryCode];
    if (spec?.accountIdentifier != null) {
      final List<String> ac = spec!.accountIdentifier!.split('-');
      final int starting = int.parse(ac[0]);
      final int ending = int.parse(ac[1]);
      result = result.copyWith(
          accountNumber: result.iban.substring(starting, ending + 1));
    }

    if (spec?.bankIdentifier != null) {
      final List<String> ac = spec!.bankIdentifier!.split('-');
      final int starting = int.parse(ac[0]);
      final int ending = int.parse(ac[1]);
      result = result.copyWith(
          bankIdentifier: result.bban!.substring(starting, ending + 1));
    }

    if (spec?.branchIdentifier != null) {
      final List<String> ac = spec!.branchIdentifier!.split('-');
      final int starting = int.parse(ac[0]);
      final int ending = int.parse(ac[1]);
      result = result.copyWith(
          branchIdentifier: result.bban!.substring(starting, ending + 1));
    }
  } else {
    result = result.copyWith(valid: false);
  }

  return result;
}