C# Class Lucene.Net.Analysis.En.PorterStemmer

Stemmer, implementing the Porter Stemming Algorithm The Stemmer class transforms a word into its root form. The input word can be provided a character at time (by calling add()), or at once by calling one of the various stem(something) methods.

ファイルを表示 Open project: apache/lucenenet

Public Methods

Method	Description
Add ( char ch ) : void	Add a character to the word being stemmed. When you are finished adding characters, you can call stem(void) to process the word.
PorterStemmer ( ) : Lucene.Net.Util
Reset ( ) : void	reset() resets the stemmer so it can stem another word. If you invoke the stemmer by calling add(char) and then stem(), you must call reset() before starting another word.
Stem ( ) : bool	Stem the word placed into the Stemmer buffer through calls to add(). Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().
Stem ( char word ) : bool	Stem a word contained in a char[]. Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().
Stem ( char word, int wordLen ) : bool	Stem a word contained in a leading portion of a char[] array. Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().
Stem ( char wordBuffer, int offset, int wordLen ) : bool	Stem a word contained in a portion of a char[] array. Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().
Stem ( int i0 ) : bool
Stem ( string s ) : string	Stem a word provided as a String. Returns the result as a String.
ToString ( ) : string	After a word has been stemmed, it can be retrieved by toString(), or a reference to the internal buffer can be retrieved by getResultBuffer and getResultLength (which is generally more efficient.)

Private Methods

Method	Description
Cons ( int i ) : bool
Cvc ( int i ) : bool
DoubleC ( int j ) : bool
Ends ( string s ) : bool
M ( ) : int
SetTo ( string s ) : void
Step1 ( ) : void
Step2 ( ) : void
Step3 ( ) : void
Step4 ( ) : void
Step5 ( ) : void
Step6 ( ) : void
VowelInStem ( ) : bool
r ( string s ) : void

Method Details

Add() public method

Add a character to the word being stemmed. When you are finished adding characters, you can call stem(void) to process the word.

public Add ( char ch ) : void
ch	char
return	void

PorterStemmer() public method

public PorterStemmer ( ) : Lucene.Net.Util
return	Lucene.Net.Util

Reset() public method

reset() resets the stemmer so it can stem another word. If you invoke the stemmer by calling add(char) and then stem(), you must call reset() before starting another word.

public Reset ( ) : void
return	void

Stem() public method

Stem the word placed into the Stemmer buffer through calls to add(). Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().

public Stem ( ) : bool
return	bool

Stem() public method

Stem a word contained in a char[]. Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().

public Stem ( char word ) : bool
word	char
return	bool

Stem() public method

Stem a word contained in a leading portion of a char[] array. Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().

public Stem ( char word, int wordLen ) : bool
word	char
wordLen	int
return	bool

Stem() public method

Stem a word contained in a portion of a char[] array. Returns true if the stemming process resulted in a word different from the input. You can retrieve the result with getResultLength()/getResultBuffer() or toString().

public Stem ( char wordBuffer, int offset, int wordLen ) : bool
wordBuffer	char
offset	int
wordLen	int
return	bool

Stem() public method

public Stem ( int i0 ) : bool
i0	int
return	bool

Stem() public method

Stem a word provided as a String. Returns the result as a String.

public Stem ( string s ) : string
s	string
return	string

ToString() public method

After a word has been stemmed, it can be retrieved by toString(), or a reference to the internal buffer can be retrieved by getResultBuffer and getResultLength (which is generally more efficient.)

public ToString ( ) : string
return	string