Regular Expressions 101

Pro

^start of line

Negated Character Class[^:\r\n]+

+matches at least one character outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Negative Lookahead(?!(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{7,32}$)

Positive Lookahead(?=.*\d)

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

\da digit

Positive Lookahead(?=.*[a-z])

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

Character Class[a-z]

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Positive Lookahead(?=.*[A-Z])

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

Character Class[A-Z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

.{7,32}any character (except for line terminators), repeated between 7 and 32 times

$end of line

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

\R?optionally matches a newline sequence

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

^[^:\r\n]+:(?!(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{7,32}$).*\R?

New

username:Password42
Username52@:sssdt3
user:Pass!626795
use:uss

username:Password42
Username52@:sssdt3
user:Pass!626795
use:uss