Class MutableAlphabet

Mutable alphabet associated with a finite state automaton.

Inheritance
object
MutableAlphabet
Implements
Inherited Members
Namespace: Automata.Core
Assembly: Automata.Core.dll
Syntax
public class MutableAlphabet : IAlphabet

Constructors

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MutableAlphabet()

Initializes a new instance of the MutableAlphabet class.

Declaration
public MutableAlphabet()
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MutableAlphabet(CanonicalAlphabet)

Initializes a new instance of the MutableAlphabet class from an existing CanonicalAlphabet.

Declaration
public MutableAlphabet(CanonicalAlphabet alphabet)
Parameters
Type Name Description
CanonicalAlphabet alphabet

Canonical alphabet to initialize from.
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MutableAlphabet(IEnumerable<string>)

Initializes a new instance of the MutableAlphabet class with the specified symbols.

Declaration
public MutableAlphabet(IEnumerable<string> symbols)
Parameters
Type Name Description
IEnumerable<string> symbols

Symbols to initialize the alphabet with.

Properties

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Count

Number of symbols in the alphabet.

Declaration
public int Count { get; }
Property Value
Type Description
int
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this[int]

Symbol at the specified index.

Declaration
public string this[int index] { get; }
Parameters
Type Name Description
int index

Index of the symbol to get.
Property Value
Type Description
string

Symbol at the specified index.
Exceptions
Type Condition
ArgumentOutOfRangeException

Thrown when the index is out of range.
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this[string]

Index of the specified symbol.

Declaration
public int this[string symbol] { get; }
Parameters
Type Name Description
string symbol

Symbol whose index to get.
Property Value
Type Description
int

Index of the specified symbol, or InvalidSymbolIndex if not found.
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Symbols

Read-only collection of symbols in the alphabet.

Declaration
public IReadOnlyCollection<string> Symbols { get; }
Property Value
Type Description
IReadOnlyCollection<string>

Methods

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AddAll(IEnumerable<string>)

Adds all the specified symbols to the alphabet that are not already present.

Declaration
public void AddAll(IEnumerable<string> symbols)
Parameters
Type Name Description
IEnumerable<string> symbols

Symbols to add.
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Contains(string)

Indicates whether the alphabet contains the specified symbol.

Declaration
public bool Contains(string symbol)
Parameters
Type Name Description
string symbol

Symbol to locate in the alphabet.
Returns
Type Description
bool

true iff the symbol is found; otherwise, false.
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GetOrAdd(string)

Index of the specified symbol or adds it if it does not exist.

Declaration
public int GetOrAdd(string symbol)
Parameters
Type Name Description
string symbol

Symbol to get or add.
Returns
Type Description
int

Index of the specified symbol.
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ToString()

String that represents the current alphabet, including its size.

Declaration
public override string ToString()
Returns
Type Description
string

A string representation of the alphabet.
Overrides
object.ToString()
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ToStringExpanded()

String with each symbol and its index, separated by a newline.

Declaration
public string ToStringExpanded()
Returns
Type Description
string

A string with each symbol and its index, separated by a newline.

Implements

IAlphabet