Paragraph
Separator
Perl
CharClass
PositiveLookAhead
Group
PositiveLookBehind
Group
Posix
CharClass
Possessive
Quantified
PredefinedClass
charclass
Print
Posix
PrivateUse
Other
Punct
Posix
Punctuation
Unicode
positive
Negated
possiblyZeroLength
Adopted
Alternation
AnyChar
CompoundRaw
Entity
EscapedLiteral
Expression
Group
Literal
AnyTimes
AtLeastOnce
Optional
RepeatExactly
RepeatRange
Sequence
CharClass