Content Regular Expression
E-mail address[*] \S+@\S+\.\S+
Password \w+
Specific-length password \w{4,10}
Advanced password [a¨CzA¨CZ]\w{3,9}
Another advanced password [a¨CzA¨CZ]\w*\d+\w*
Limited-length field \S{4,10}
Social Security number \d{3}-\d{2}-\d{4}