Email and Password validator - Swift

EmailPassword+validator.swift

import Foundation

extension String {
  func isValidEmailAddress() -> Bool {
      // swiftlint:disable line_length
      let emailRegEx = """
(?:[a-zA-Z0-9!#$%\\&‘*+/=?\\^_`{|}~-]+(?:\\.[a-zA-Z0-9!#$%\\&'*+/=?\\^_`{|}~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21-\\x5a\\x53-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])+)\\])
"""
      // swiftlint:enable line_length
      let emailTest = NSPredicate(format: "SELF MATCHES[c] %@", emailRegEx)
      return emailTest.evaluate(with: self)
  }
}

extension String {
  func isValidPassword(minimumCharacters: UInt = 8, numberRequired: Bool = false, anyLetter: Bool = false, lowerCaseLettersRequired: Bool = false, upperCaseLettersRequired: Bool = false) -> Bool {

      if self.count < minimumCharacters { return false }
      if anyLetter && !self.contains { $0.isLetter } { return false }
      if numberRequired && !self.contains { $0.isNumber } { return false }
      if lowerCaseLettersRequired && !anyLetter && !self.contains { $0.isLowercase } { return false }
      if upperCaseLettersRequired && !anyLetter && !self.contains { $0.isUppercase } { return false }
      return true
  }
}