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Can anyone help me with a regex to allow atleast one special character, one uppercase, one lowercase.
This is what I have so far:
^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$
but it seems to match the characters only in the order "special character", "uppercase", "lowercase".
Any help is greatly appreciated
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Special Regex Characters: These characters have special meaning in regex (to be discussed below): . , + , * , ? , ^ , $ , ( , ) , [ , ] , { , } , | , \ . Escape Sequences (\char): To match a character having special meaning in regex, you need to use a escape sequence prefix with a backslash ( \ ).
*[A-Z]) represents at least one uppercase character.
Using character sets For example, the regular expression "[ A-Za-z] " specifies to match any single uppercase or lowercase letter. In the character set, a hyphen indicates a range of characters, for example [A-Z] will match any one capital letter.
Your regex
^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$
should actually work just fine, but you can make it a lot better by removing the first .*:
^(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$
will match any string of at least 8 characters that contains at least one lowercase and one uppercase ASCII character and also at least one character from the set @#$%^&+= (in any order).
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