On 2020-12-23 17:03, Sadaka Technology wrote:
hello guys,
I have this pattern for password validation (regex):
I want these rules to be applied:
Minimum 8 characters.
The alphabets must be between [a-z]
At least one alphabet should be of Upper Case [A-Z]
At least 1 number or digit between [0-9].
At least 1 character from [ _ or @ or $ ].
and this pattern:
passwordpattern = "^(?=.[a-z])(?=.[A-Z])(?=.\d)(?=.[@$])[A-Za-z\d@$!%?&]{8,}.$"
my only issue is that I want to add the symbol () and symbol(.) in the pattern
where only it accepts $ and @, I tried adding generally like [@_$] not working
Your pattern:
^ Matches at start of string
(?=.[a-z]) Matches any character and then one [a-z]
(?=.[A-Z]) Matches any character and then one [A-Z]
(?=.\d) Matches any character and then one digit
(?=.[@$]) Matches any character and then one of [@$]
[A-Za-z\d@$!%?&]{8,} Matches 8 or more of [A-Za-z\d@$!%?&]{8,}
. Matches any character
$ Matche at end of string
The pattern will never match because the second character cannot be one
of [a-z] _and_ one of [A-Z] _and_ a digit _and_ one of [@$] _at the same
time_.
I'm not sure what you mean by "The alphabets must be between [a-z]" (all
letters lower case?) and also "At least one alphabet should be of Upper
Case [A-Z]" (at least one upper case letter).
I'm guessing you mean that all letters must be [A-Za-z], but at least
one of them must be [A-Z].
Also, what do you mean by "symbol () and symbol(.)"; I see the "."
between the second parentheses in the second one, but nothing between
the first.
Anyway, how about this pattern:
^(?=.*[A-Z])(?=.*[0-9])(?=.*[_@$])[A-Za-z0-9@$_!%?&]{8,}$
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