Class ArabicNormalizer

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Inheritance

object

ArabicNormalizer

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Lucene.Net.Analysis.Ar

Assembly: Lucene.Net.Analysis.Common.dll

Syntax

public class ArabicNormalizer

Fields

ALEF

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char ALEF = 'ا'

Field Value

Type	Description
char

ALEF_HAMZA_ABOVE

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char ALEF_HAMZA_ABOVE = 'أ'

Field Value

Type	Description
char

ALEF_HAMZA_BELOW

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char ALEF_HAMZA_BELOW = 'إ'

Field Value

Type	Description
char

ALEF_MADDA

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char ALEF_MADDA = 'آ'

Field Value

Type	Description
char

DAMMA

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char DAMMA = 'ُ'

Field Value

Type	Description
char

DAMMATAN

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char DAMMATAN = 'ٌ'

Field Value

Type	Description
char

DOTLESS_YEH

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char DOTLESS_YEH = 'ى'

Field Value

Type	Description
char

FATHA

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char FATHA = 'َ'

Field Value

Type	Description
char

FATHATAN

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char FATHATAN = 'ً'

Field Value

Type	Description
char

HEH

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char HEH = 'ه'

Field Value

Type	Description
char

KASRA

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char KASRA = 'ِ'

Field Value

Type	Description
char

KASRATAN

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char KASRATAN = 'ٍ'

Field Value

Type	Description
char

SHADDA

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char SHADDA = 'ّ'

Field Value

Type	Description
char

SUKUN

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char SUKUN = 'ْ'

Field Value

Type	Description
char

TATWEEL

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char TATWEEL = 'ـ'

Field Value

Type	Description
char

TEH_MARBUTA

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char TEH_MARBUTA = 'ة'

Field Value

Type	Description
char

YEH

Normalizer for Arabic.

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

Normalization is defined as:

• Normalization of hamza with alef seat to a bare alef.
• Normalization of teh marbuta to heh
• Normalization of dotless yeh (alef maksura) to yeh.
• Removal of Arabic diacritics (the harakat)
• Removal of tatweel (stretching character).

Declaration

public const char YEH = 'ي'

Field Value

Type	Description
char

Methods

Normalize(char[], int)

Normalize an input buffer of Arabic text

Declaration

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

Parameters

Type	Name	Description
char[]	s	input buffer
int	len	length of input buffer

Returns

Type	Description
int	length of input buffer after normalization