Package org.apache.lucene.analysis.fa

Class PersianNormalizer

java.lang.Object

org.apache.lucene.analysis.fa.PersianNormalizer

public class PersianNormalizer
extends Object

Normalizer for Persian.

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

Normalization is defined as:

• Normalization of various heh + hamza forms and heh goal to heh.
• Normalization of farsi yeh and yeh barree to arabic yeh
• Normalization of persian keheh to arabic kaf

Field Summary

Fields

Modifier and Type	Field	Description
static final char	FARSI_YEH
static final char	HAMZA_ABOVE
static final char	HEH
static final char	HEH_GOAL
static final char	HEH_YEH
static final char	KAF
static final char	KEHEH
static final char	YEH
static final char	YEH_BARREE

Constructor Summary

Constructors

Constructor	Description
PersianNormalizer()

Method Summary

Modifier and Type	Method	Description
int	normalize(char[] s, int len)	Normalize an input buffer of Persian text

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

YEH

public static final char YEH

See Also:

• Constant Field Values

FARSI_YEH

public static final char FARSI_YEH

See Also:

• Constant Field Values

YEH_BARREE

public static final char YEH_BARREE

See Also:

• Constant Field Values

KEHEH

public static final char KEHEH

See Also:

• Constant Field Values

KAF

public static final char KAF

See Also:

• Constant Field Values

HAMZA_ABOVE

public static final char HAMZA_ABOVE

See Also:

• Constant Field Values

HEH_YEH

public static final char HEH_YEH

See Also:

• Constant Field Values

HEH_GOAL

public static final char HEH_GOAL

See Also:

• Constant Field Values

HEH

public static final char HEH

See Also:

• Constant Field Values

Constructor Details

PersianNormalizer

public PersianNormalizer()

Method Details

normalize

public int normalize(char[] s,
 int len)

Normalize an input buffer of Persian text

Parameters:

s - input buffer

len - length of input buffer

Returns:

length of input buffer after normalization