Regex expression for password validation

Question

I'm trying to develop a regular expression for validating a password which should meet following criteria

I have developed a expression for that:

password_pattern=/^(?=.*[0-9]) (?=.*[!@#$%^&*]) (?=.*[a-z]) (?=.*[A-Z]) {6} $/

However it is not working as I intended. What am I going wrong?

I'm new to regular expressions, so I'd appreciate an explanation rather than a 'use this' sort of answer, please explain.

Do NOT limit what password people may use. [link](http://xkcd.com/936/) — Niet the Dark Absol, Jun 08 '13 at 13:18
well he's giving it a lower limit, which is actually a pretty sane thing to do — blue, Jun 08 '13 at 13:32

score 1 · Answer 1 · answered Jun 08 '13 at 13:21

1

You are missing a single dot before the {6}, and you've added spaces, which you shouldn't have:

password_pattern=/^(?=.*[0-9])(?=.*[!@#$%^&*])(?=.*[a-z])(?=.*[A-Z]).{6}$/

answered Jun 08 '13 at 13:21

Bohemian

1 Answers1