Regular Expressions 101

Pro

^start of line

Positive Lookahead(?=(?:.*\p{L}){4})

Non-Capturing Group(?:.*\p{L}){4}

{4}repeats the group contents below exactly 4 times:

.*any character (except for line terminators), repeated any number of times

\p{L}any Unicode letter

Positive Lookahead(?=(?:.*\p{N}){2})

Non-Capturing Group(?:.*\p{N}){2}

{2}repeats the group contents below exactly 2 times:

.*any character (except for line terminators), repeated any number of times

\p{N}a decimal digit, letterlike number, or other numeric character

Positive Lookahead(?=(?:.*\p{P}){2})

Non-Capturing Group(?:.*\p{P}){2}

{2}repeats the group contents below exactly 2 times:

.*any character (except for line terminators), repeated any number of times

\p{P}a punctuation character

.{8,}any character (except for line terminators), repeated at least 8 times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

^(?=(?:.*\p{L}){4})(?=(?:.*\p{N}){2})(?=(?:.*\p{P}){2}).{8,}$

New

abcd12.-

abcd12.-