regex - Password strong - not require each condition -

I have password validation by regex. This is my expression:

  ^ (?. * \ D) (? =. * [Az]) (? =. * [AG]) (? =. * [@ # $ % ^ & Amp; + =]). * $  

This works - the password must contain at least 1 digit, at least 1 lower case letter, at least 1 uppercase letter and at least special characters : @ # $% ^ & amp; + = . So I have to input all these characters.

But I want a password, which has at least 3 combinations, not 4. 4. Then this password should be good:

2 DF (not a special character), DF # (not number), a4% (no upper case). I would like to ask, how should this Rezek expression be shown? I can write each expression to check each combination, for example:

• Do not include numbers: ^ (? =. * [Az]) (? =. * [AZ]) (? =. * [@ # $% ^ & Amp; + =]) * $
• The upper case is not included: ^ (? =. * \ D) (? =?. * [AG]) (? =. * [@ # $ % ^ & Amp; + =]). * $

But maybe I can do it in an expression.

If you want to do it with regular expression, then I suggest (for clarity) a Check the other four conditions after the second For readability, you can first try to find \ d in your code, then [az] , then [Az] and then [@ # $% ^ & amp; + =] (though you want to use [\ w_] , rather than those few additional characters) then check that at least three of these work.

If you is to do this in a single regex, then you can use the alternation:

 ? ^ ((= * [Az]) (= * [AZ]) (= * \ d) |.?.?.?.? (= * [Az]) (= * [AZ]) (=. * [\ W_]) | (= * [\ w_]) (= * [AZ]) (= * \ d) |?.?.?.?.. (= * [Az]) (= * [\ W_]) (? =? * \ D \)). * $  

But this is just ugly.