Class ArabicStemmer

Stemmer for Arabic.

Stemming is done in-place for efficiency, operating on a termbuffer.

Stemming is defined as:

Removal of attached definite article, conjunction, and prepositions.
Stemming of common suffixes.

Inheritance

System.Object

ArabicStemmer

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Lucene.Net.Analysis.Ar

Assembly: Lucene.Net.Analysis.Common.dll

Syntax

public class ArabicStemmer

Fields

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ALEF

Declaration

public const char ALEF = 'ا'

Field Value

Type	Description
System.Char

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BEH

Declaration

public const char BEH = 'ب'

Field Value

Type	Description
System.Char

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FEH

Declaration

public const char FEH = 'ف'

Field Value

Type	Description
System.Char

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HEH

Declaration

public const char HEH = 'ه'

Field Value

Type	Description
System.Char

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KAF

Declaration

public const char KAF = 'ك'

Field Value

Type	Description
System.Char

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LAM

Declaration

public const char LAM = 'ل'

Field Value

Type	Description
System.Char

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NOON

Declaration

public const char NOON = 'ن'

Field Value

Type	Description
System.Char

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TEH

Declaration

public const char TEH = 'ت'

Field Value

Type	Description
System.Char

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TEH_MARBUTA

Declaration

public const char TEH_MARBUTA = 'ة'

Field Value

Type	Description
System.Char

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WAW

Declaration

public const char WAW = 'و'

Field Value

Type	Description
System.Char

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YEH

Declaration

public const char YEH = 'ي'

Field Value

Type	Description
System.Char

Properties

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Prefixes

Declaration

public static IList<char[]> Prefixes { get; }

Property Value

Type	Description
System.Collections.Generic.IList<System.Char[]>

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Suffixes

Declaration

public static IList<char[]> Suffixes { get; }

Property Value

Type	Description
System.Collections.Generic.IList<System.Char[]>

Methods

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Stem(Char[], Int32)

Stem an input buffer of Arabic text.

Declaration

public virtual int Stem(char[] s, int len)

Parameters

Type	Name	Description
System.Char[]	s	input buffer
System.Int32	len	length of input buffer

Returns

Type	Description
System.Int32	length of input buffer after normalization

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StemPrefix(Char[], Int32)

Stem a prefix off an Arabic word.

Declaration

public virtual int StemPrefix(char[] s, int len)

Parameters

Type	Name	Description
System.Char[]	s	input buffer
System.Int32	len	length of input buffer

Returns

Type	Description
System.Int32	new length of input buffer after stemming.

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StemSuffix(Char[], Int32)

Stem suffix(es) off an Arabic word.

Declaration

public virtual int StemSuffix(char[] s, int len)

Parameters

Type	Name	Description
System.Char[]	s	input buffer
System.Int32	len	length of input buffer

Returns

Type	Description
System.Int32	new length of input buffer after stemming