email_validator.dart

class EmailValidator {
    static bool isEmailValid(String emailInput) {
    if (_containsSemicolon(emailInput)) return false;

    final String _emailRegex =
        r'^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$';

    RegExp emailRegExp = new RegExp(_emailRegex);

    return emailRegExp.hasMatch(emailInput);
  }
}