regex101: PCRE (Legacy) Match Workspace

Pro

^start of line

Non-Capturing Group(?:(?=.*?\p{N})(?=.*?[\p{S}\p{P} ])(?=.*?\p{Lu})(?=.*?\p{Ll}))

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

.*?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{S}\p{P} ])

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

Character Class[\p{S}\p{P} ]

\p{S}a mathematical, currency, modifier, or other symbol

\p{P}a punctuation character

the literal (32₁₀ / 40₈ / 20₁₆)

Positive Lookahead(?=.*?\p{Lu})

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

\p{Lu}an uppercase letter

Positive Lookahead(?=.*?\p{Ll})

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

\p{Ll}a lowercase letter

Negated Character Class[^\p{C}]{8,16}

{8,16}matches between 8 and 16 characters outside the set below:

\p{C}a control, format, surrogate, private-use, or unassigned code point

$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

25 tokens

Regular Expression

^(?:(?=.*?\p{N})(?=.*?[\p{S}\p{P} ])(?=.*?\p{Lu})(?=.*?\p{Ll}))[^\p{C}]{8,16}$

New

********** VALID **********
Password1!
TestPass###231
My Pass#123~12`1
!#$Afs1!@(*''
VDFt35q#@$@
éA1!@#!@#!

********* INVALID *********
PASSWORD1!
password1!
Password1
Password
Passw1!
ThisIsMySuperLongPassword1!
Ae!						1

Substitution

********** VALID **********
Password1!
TestPass###231
My Pass#123~12`1
!#$Afs1!@(*''
VDFt35q#@$@
éA1!@#!@#!

********* INVALID *********
PASSWORD1!
password1!
Password1
Password
Passw1!
ThisIsMySuperLongPassword1!
Ae!						1