Package org.tartarus.snowball

Class SnowballProgram

java.lang.Object

org.tartarus.snowball.SnowballProgram

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

SnowballStemmer

public class SnowballProgram
extends Object
implements Serializable

Base class for a snowball stemmer

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected int	bra
protected int	cursor
protected int	ket
protected int	limit
protected int	limit_backward

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SnowballProgram()
	SnowballProgram(SnowballProgram other)

Method Summary

Modifier and Type	Method	Description
protected void	assign_to(StringBuilder s)
protected void	copy_from(SnowballProgram other)
protected boolean	eq_s(CharSequence s)
protected boolean	eq_s_b(CharSequence s)
protected int	find_among(Among[] v)
protected int	find_among_b(Among[] v)
String	getCurrent()	Get the current string.
char[]	getCurrentBuffer()	Get the current buffer containing the stem.
int	getCurrentBufferLength()	Get the valid length of the character array in getCurrentBuffer().
protected boolean	in_grouping(char[] s, int min, int max)
protected boolean	in_grouping_b(char[] s, int min, int max)
protected void	insert(int c_bra, int c_ket, CharSequence s)
protected boolean	out_grouping(char[] s, int min, int max)
protected boolean	out_grouping_b(char[] s, int min, int max)
protected int	replace_s(int c_bra, int c_ket, CharSequence s)
void	setCurrent(char[] text, int length)	Set the current string.
void	setCurrent(String value)	Set the current string.
protected void	slice_check()
protected void	slice_del()
protected void	slice_from(CharSequence s)
protected void	slice_to(StringBuilder s)

Methods inherited from class java.lang.Object

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

Field Detail

cursor

protected int cursor

limit

protected int limit

limit_backward

protected int limit_backward

bra

protected int bra

ket

protected int ket

Constructor Detail

SnowballProgram

protected SnowballProgram()

SnowballProgram

public SnowballProgram(SnowballProgram other)

Method Detail

setCurrent

public void setCurrent(String value)

Set the current string.

getCurrent

public String getCurrent()

Get the current string.

setCurrent

public void setCurrent(char[] text,
                       int length)

Set the current string.

Parameters:

text - character array containing input

length - valid length of text.

getCurrentBuffer

public char[] getCurrentBuffer()

Get the current buffer containing the stem.

NOTE: this may be a reference to a different character array than the one originally provided with setCurrent, in the exceptional case that stemming produced a longer intermediate or result string.

It is necessary to use getCurrentBufferLength() to determine the valid length of the returned buffer. For example, many words are stemmed simply by subtracting from the length to remove suffixes.

See Also:

getCurrentBufferLength()

getCurrentBufferLength

public int getCurrentBufferLength()

Get the valid length of the character array in getCurrentBuffer().

Returns:

valid length of the array.

copy_from

protected void copy_from(SnowballProgram other)

in_grouping

protected boolean in_grouping(char[] s,
                              int min,
                              int max)

in_grouping_b

protected boolean in_grouping_b(char[] s,
                                int min,
                                int max)

out_grouping

protected boolean out_grouping(char[] s,
                               int min,
                               int max)

out_grouping_b

protected boolean out_grouping_b(char[] s,
                                 int min,
                                 int max)

eq_s

protected boolean eq_s(CharSequence s)

eq_s_b

protected boolean eq_s_b(CharSequence s)

find_among

protected int find_among(Among[] v)

find_among_b

protected int find_among_b(Among[] v)

replace_s

protected int replace_s(int c_bra,
                        int c_ket,
                        CharSequence s)

slice_check

protected void slice_check()

slice_from

protected void slice_from(CharSequence s)

slice_del

protected void slice_del()

insert

protected void insert(int c_bra,
                      int c_ket,
                      CharSequence s)

slice_to

protected void slice_to(StringBuilder s)

assign_to

protected void assign_to(StringBuilder s)