Class SpecialOperations

Special automata operations.

Note

This API is experimental and might change in incompatible ways in the next release.

Inheritance

object

SpecialOperations

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Lucene.Net.Util.Automaton

Assembly: Lucene.Net.dll

Syntax

public static class SpecialOperations

Methods

GetCommonPrefix(Automaton)

Returns the longest string that is a prefix of all accepted strings and visits each state at most once.

Declaration

public static string GetCommonPrefix(Automaton a)

Parameters

Type	Name	Description
Automaton	a

Returns

Type	Description
string	Common prefix.

GetCommonPrefixBytesRef(Automaton)

Special automata operations.

Note

This API is experimental and might change in incompatible ways in the next release.

Declaration

public static BytesRef GetCommonPrefixBytesRef(Automaton a)

Parameters

Type	Name	Description
Automaton	a

Returns

Type	Description
BytesRef

GetCommonSuffix(Automaton)

Returns the longest string that is a suffix of all accepted strings and visits each state at most once.

Declaration

public static string GetCommonSuffix(Automaton a)

Parameters

Type	Name	Description
Automaton	a

Returns

Type	Description
string	Common suffix.

GetCommonSuffixBytesRef(Automaton)

Special automata operations.

Note

This API is experimental and might change in incompatible ways in the next release.

Declaration

public static BytesRef GetCommonSuffixBytesRef(Automaton a)

Parameters

Type	Name	Description
Automaton	a

Returns

Type	Description
BytesRef

GetFiniteStrings(Automaton, int)

Returns the set of accepted strings, assuming that at most limit strings are accepted. If more than limit strings are accepted, the first limit strings found are returned. If limit<0, then the limit is infinite.

Declaration

public static ISet<Int32sRef> GetFiniteStrings(Automaton a, int limit)

Parameters

Type	Name	Description
Automaton	a
int	limit

Returns

Type	Description
ISet<Int32sRef>

IsFinite(Automaton)

Returns true if the language of this automaton is finite.

Declaration

public static bool IsFinite(Automaton a)

Parameters

Type	Name	Description
Automaton	a

Returns

Type	Description
bool

Reverse(Automaton)

Reverses the language of the given (non-singleton) automaton while returning the set of new initial states.

Declaration

public static ISet<State> Reverse(Automaton a)

Parameters

Type	Name	Description
Automaton	a

Returns

Type	Description
ISet<State>