CharacterClass class

Symbols that represent a group of character variants in Regular Expressions. Certain character class allows a negated form.

See more at regular-expressions.info website

Disclaimer: Available constructor list might not be completed yet

Implemented types
Available Extensions

Constructors

CharacterClass.alphanumeric({bool negated = false})
Matches alphanumeric characters:
const
CharacterClass.any()
Matches any character. Represented as dot (.) character.
const
CharacterClass.carriageReturn()
Matches carriage return character (\r)
const
CharacterClass.controlCharacter(int caretChar)
Matches control characters such as SOH, ETX, etc. Ranging between \cA until \cz (available letters are A to Z, then a to z).
factory
CharacterClass.digits({bool negated = false})
Matches numeric characters 0-9. Represented as \d (negated: \D).
const
CharacterClass.formFeed()
Matches form feed character (\f)
const
CharacterClass.hex2(int hex)
Matches a character represented with hex ASCII value. Using \x notation with value range of \x00 until \xFF (Available standard ASCII characters).
factory
CharacterClass.hex4(int hex)
Matches a character represented with hex Unicode value. Using \u notation with value range of \u0000 until \uFFFF. This allows matching of non-Latin characters.
factory
CharacterClass.horizontalTab()
Matches tab character (\t)
const
CharacterClass.linefeed()
Matches new line character (\n)
const
CharacterClass.literal(String literal)
Given a literal character, matches the same character with attaching a backslash to escape possibility of conflicts with existing literals used by other matching operator.
factory
CharacterClass.nul()
Matches NUL character (\0)
const
CharacterClass.verticalTab()
Matches vertical tab character (\v)
const
CharacterClass.whitespace({bool negated = false})
Matches whitespace characters, such as space character, new line breaks, tabs, etc. Represented as \s (negated: \S).
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
negated → bool
Use negated form, if available
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
symbol → String
Main symbol proportion of the notation
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited