regex101: PCRE (Legacy) Match Workspace

Explanation

Pro

^start of line

Positive Lookahead(?=(?:[^\d\s]*\d){3})

Non-Capturing Group(?:[^\d\s]*\d){3}

{3}repeats the group contents below exactly 3 times:

Negated Character Class[^\d\s]*

*matches any number of characters outside the set below:

\da digit

\sany whitespace character

\da digit

Positive Lookahead(?=(?:[^a-z\s]*[a-z]){5})

Non-Capturing Group(?:[^a-z\s]*[a-z]){5}

{5}repeats the group contents below exactly 5 times:

Negated Character Class[^a-z\s]*

*matches any number of characters outside the set below:

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

\sany whitespace character

Character Class[a-z]

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

Positive Lookahead(?=(?:[^@#\s]*[@#]){2})

Non-Capturing Group(?:[^@#\s]*[@#]){2}

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

Negated Character Class[^@#\s]*

*matches any number of characters outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

\sany whitespace character

Character Class[@#]

@the literal @ (64₁₀ / 100₈ / 40₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

Positive Lookahead(?=(?:[^A-Z\s]*$|(?:[^A-Z\s]*[A-Z]){5}))

Non-Capturing Group(?:[^A-Z\s]*$|(?:[^A-Z\s]*[A-Z]){5})

1st Alternative[^A-Z\s]*$

Negated Character Class[^A-Z\s]*

*matches any number of characters outside the set below:

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

\sany whitespace character

$end of line

2nd Alternative(?:[^A-Z\s]*[A-Z]){5}

Non-Capturing Group(?:[^A-Z\s]*[A-Z]){5}

{5}repeats the group contents below exactly 5 times:

Negated Character Class[^A-Z\s]*

*matches any number of characters outside the set below:

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

\sany whitespace character

Character Class[A-Z]

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

Character Class[\w\d@#]{6,30}

{6,30}matches between 6 and 30 characters from the set below:

\wany word character

\da digit

@the literal @ (64₁₀ / 100₈ / 40₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

$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

Quick Reference

25 tokens

Regular Expression

^(?=(?:[^\d\s]*\d){3})(?=(?:[^a-z\s]*[a-z]){5})(?=(?:[^@#\s]*[@#]){2})(?=(?:[^A-Z\s]*$|(?:[^A-Z\s]*[A-Z]){5}))[\w\d@#]{6,30}$

New

t4xa@ui13p#o6
3@piy13Qx9#13@
3@piy13Qx9#13@zAAAA
3@piy1ABC3Qx9#13@DEGFz1337



t4xa@ui13p#o6
3@piy13Qx9#13@z1337
3@piy1ABC3Qx9#13@DEGFz1337