Regular Expressions 101

^start of line

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)

Positive Lookahead(?=.*\d)

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

\da digit

Positive Lookahead(?=.*([^a-zA-Z\d\s]))

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

Group 1([^a-zA-Z\d\s])

Negated Character Class[^a-zA-Z\d\s]

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

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

\da digit

\sany whitespace character

.{9,}any character (except for line terminators), repeated at least 9 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

Regular Expression

^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*([^a-zA-Z\d\s])).{9,}$

New

Pass2withUnderScore_Case
Pass2withUnderScore_Case!
Pass2withUnderScoreCase!
Pass2withUnderScoreCase

asdfasfdsxxxxxxxxxxxxxxxxxxxxxxxxxxx
FASDFASDFASDXXXXXXXXXXXXXXXXXXXX
143241234xxxxxxxxxxxxx
a1234xxxxxxxxxxxxxxxxxx
A1234XXXXXXXXXXXXXXXXXXXXXXX
Pass2withUnderScoreCase