org.apache.lucene.analysis.cz

Class CzechStemmer

java.lang.Object

org.apache.lucene.analysis.cz.CzechStemmer

public class CzechStemmer
extends java.lang.Object

Light Stemmer for Czech.

Implements the algorithm described in: Indexing and stemming approaches for the Czech language http://portal.acm.org/citation.cfm?id=1598600

Constructor Summary

Constructors

Constructor and Description
CzechStemmer()

Method Summary

Modifier and Type	Method and Description
private int	normalize(char[] s, int len)
private int	removeCase(char[] s, int len)
private int	removePossessives(char[] s, int len)
int	stem(char[] s, int len) Stem an input buffer of Czech text.

Methods inherited from class java.lang.Object

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

Constructor Detail

CzechStemmer

public CzechStemmer()

Method Detail

stem

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

Stem an input buffer of Czech text.

Parameters:

s - input buffer

len - length of input buffer

Returns:

length of input buffer after normalization

NOTE: Input is expected to be in lowercase, but with diacritical marks

removeCase

private int removeCase(char[] s,
                       int len)

removePossessives

private int removePossessives(char[] s,
                              int len)

normalize

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