regex101: PCRE2 (PHP) Match Workspace

Pro

Positive Lookahead(?=.)

.any Unicode character

Positive Lookahead(?=(\p{Cn}))?

?repeats the group contents below at most once:

Group 1(\p{Cn})

\p{Cn}a reserved unassigned code point or a noncharacter

Positive Lookahead(?=(\p{Cc}))?

?repeats the group contents below at most once:

Group 2(\p{Cc})

\p{Cc}a control code in [\x00-\x1F] or [\x7F-\x9F]

Positive Lookahead(?=(\p{Cf}))?

?repeats the group contents below at most once:

Group 3(\p{Cf})

\p{Cf}a format control character

Positive Lookahead(?=(\p{Co}))?

?repeats the group contents below at most once:

Group 4(\p{Co})

\p{Co}a private-use code point

Positive Lookahead(?=(\p{Cs}))?

?repeats the group contents below at most once:

Group 5(\p{Cs})

\p{Cs}a surrogate code point reserved for UTF-16 encoding

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

?repeats the group contents below at most once:

Group 6(\p{Lu})

\p{Lu}an uppercase letter

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

?repeats the group contents below at most once:

Group 7(\p{Ll})

\p{Ll}a lowercase letter

Positive Lookahead(?=(\p{Lt}))?

?repeats the group contents below at most once:

Group 8(\p{Lt})

\p{Lt}a titlecase letter, such as a digraph encoded as one character with an uppercase first part

Positive Lookahead(?=(\p{Lm}))?

?repeats the group contents below at most once:

Group 9(\p{Lm})

\p{Lm}a modifier letter

Positive Lookahead(?=(\p{Lo}))?

?repeats the group contents below at most once:

Group 10(\p{Lo})

\p{Lo}another kind of letter, such as an ideograph or syllabic letter

Positive Lookahead(?=(\p{Mn}))?

?repeats the group contents below at most once:

Group 11(\p{Mn})

\p{Mn}a nonspacing combining mark with zero advance width

Positive Lookahead(?=(\p{Me}))?

?repeats the group contents below at most once:

Group 12(\p{Me})

\p{Me}an enclosing combining mark

Positive Lookahead(?=(\p{Mc}))?

Positive Lookahead(?=(\p{Pd}))?

Positive Lookahead(?=(\p{Ps}))?

Positive Lookahead(?=(\p{Pe}))?

Positive Lookahead(?=(\p{Pc}))?

Positive Lookahead(?=(\p{Po}))?

Positive Lookahead(?=(\p{Pi}))?

Positive Lookahead(?=(\p{Pf}))?

Positive Lookahead(?=(\p{Sm}))?

Positive Lookahead(?=(\p{Sc}))?

Positive Lookahead(?=(\p{Sk}))?

Positive Lookahead(?=(\p{So}))?

Positive Lookahead(?=(\p{Zs}))?

Positive Lookahead(?=(\p{Zl}))?

Positive Lookahead(?=(\p{Zp}))?

Global pattern flags

s modifier: single line. Allows a dot to match line terminators

u modifier: unicode. Treats the pattern and subject as UTF-16

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

25 tokens

Regular Expression

(?=.)(?=(\p{Cn}))?(?=(\p{Cc}))?(?=(\p{Cf}))?(?=(\p{Co}))?(?=(\p{Cs}))?(?=(\p{Lu}))?(?=(\p{Ll}))?(?=(\p{Lt}))?(?=(\p{Lm}))?(?=(\p{Lo}))?(?=(\p{Mn}))?(?=(\p{Me}))?(?=(\p{Mc}))?(?=(\p{Pd}))?(?=(\p{Ps}))?(?=(\p{Pe}))?(?=(\p{Pc}))?(?=(\p{Po}))?(?=(\p{Pi}))?(?=(\p{Pf}))?(?=(\p{Sm}))?(?=(\p{Sc}))?(?=(\p{Sk}))?(?=(\p{So}))?(?=(\p{Zs}))?(?=(\p{Zl}))?(?=(\p{Zp}))?

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