Class Chars

Character definitions and utility methods for Alang.

Inheritance

object

Chars

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Automata.Core.Alang

Assembly: Automata.Core.dll

Syntax

public static class Chars

Fields

Complement

Complement operator character.

Declaration

public const char Complement = '~'

Field Value

Type	Description
char

Difference

Difference operator character.

Declaration

public const char Difference = '-'

Field Value

Type	Description
char

EOI

End of input character.

Declaration

public const char EOI = '\0'

Field Value

Type	Description
char

Intersection

Intersection operator character.

Declaration

public const char Intersection = '&'

Field Value

Type	Description
char

Invalid

Invalid character.

Declaration

public const char Invalid = '\uffff'

Field Value

Type	Description
char

KleenePlus

Kleene plus operator character.

Declaration

public const char KleenePlus = '+'

Field Value

Type	Description
char

KleeneStar

Kleene star operator character.

Declaration

public const char KleeneStar = '*'

Field Value

Type	Description
char

LeftParen

Left parenthesis character.

Declaration

public const char LeftParen = '('

Field Value

Type	Description
char

Option

Option operator character.

Declaration

public const char Option = '?'

Field Value

Type	Description
char

RightParen

Right parenthesis character.

Declaration

public const char RightParen = ')'

Field Value

Type	Description
char

Union

Union operator character.

Declaration

public const char Union = '|'

Field Value

Type	Description
char

Wildcard

Wildcard token denoting any string in the alphabet.

Declaration

public const char Wildcard = '.'

Field Value

Type	Description
char

Methods

IsExpressionStart(char)

Indicates if a character can be the start of an expression.

Declaration

public static bool IsExpressionStart(char c)

Parameters

Type	Name	Description
char	c	Character to check.

Returns

Type	Description
bool	true iff the character can start an expression.

IsOperator(char)

Indicates if a character is an operator.

Declaration

public static bool IsOperator(char c)

Parameters

Type	Name	Description
char	c	Character to check.

Returns

Type	Description
bool	true iff the character is an operator.

IsSymbolChar(char)

Indicates if a character can be part of Symbol.

Declaration

public static bool IsSymbolChar(char c)

Parameters

Type	Name	Description
char	c	Character to check.

Returns

Type	Description
bool	true iff the character can be part of a Symbol.