KZPeselValidator

import KZPeselValidator

let peselValidator = KZPeselValidator()
let peselValidationResult = peselValidator.validate(peselNumber: "76040117112")

switch peselValidationResult {
case .valid(let peselNumber):
    print("Pesel \(peselNumber) is valid")
case .invalid(let peselNumber):
    print("Pesel \(peselNumber) is invalid")
}

import KZPeselValidator

let peselParser = KZPeselParser()
let parseResult = peselParser.parse(peselNumber: "76040117112")

switch parseResult {
case .success(let peselInfo):
    var birthDateComponents = peselInfo.birthDateComponents

    // date from birthDateComponents without calendar is invalid!
    birthDateComponents.calendar = Calendar.current

    print("Pesel \(peselInfo.pesel) is valid")
    print("Birthdate: \(birthDateComponents.date!)")
    print("Sex: ", terminator: "")

    switch peselInfo.sex {
    case .male:
        print("male")
    case .female:
        print("female")
    }
case .peselInvalid(let peselNumber):
    print("Pesel \(peselNumber) is invalid")
}