The PESEL library is a Dart package that provides functionality to work with PESEL (Personal Identification Number) in Poland. PESEL is used to identify individuals and contains information about birthdate and sex.

https://obywatel.gov.pl/pl/dokumenty-i-dane-osobowe/czym-jest-numer-pesel

To use this library in your Dart project, add the following dependency to your pubspec.yaml file:

dependencies:
  pesel: ^1.0.0

Then, run dart pub get to fetch the package.

import 'package:pesel/pesel.dart';

void main() {
  // Create a Pesel instance
  final peselString = "22291028314";
  final pesel = Pesel(peselString);

  // Print the PESEL number
  print(pesel);

  // Check if the PESEL is valid
  if (pesel.isValid) {
    print("This PESEL is valid.");
  } else {
    print("This PESEL is not valid.");
  }

  // Check if the PESEL belongs to a male or female
  if (pesel.isMale) {
    print("This PESEL belongs to a male.");
  } else if (pesel.isFemale) {
    print("This PESEL belongs to a female.");
  }

  // Print the sex of the individual
  print("Sex: ${pesel.sex}");

  // Print the date of birth
  print("Date of Birth: ${pesel.dateOfBirth}");
}

Represents a PESEL (Personal Identification Number) in Poland, used to identify individuals.

• Pesel(String pesel): Creates a Pesel instance from a valid PESEL string.

• bool isMale: Checks if the PESEL belongs to a male individual.
• bool isFemale: Checks if the PESEL belongs to a female individual.
• bool isValid: Checks if the PESEL is valid based on its checksum.
• DateTime dateOfBirth: Retrieves the date of birth associated with the PESEL.
• Sex sex: Determines the sex of the individual associated with the PESEL.

Represents the biological sex of an individual.

• male: Represents the male sex.
• female: Represents the female sex.

This project is licensed under the MIT License - see the LICENSE file for details.