weka.core.tokenizers

Class CharacterDelimitedTokenizer

java.lang.Object

weka.core.tokenizers.Tokenizer

weka.core.tokenizers.CharacterDelimitedTokenizer

All Implemented Interfaces:

java.io.Serializable, java.util.Enumeration, OptionHandler, RevisionHandler

Direct Known Subclasses:

NGramTokenizer, WordTokenizer

public abstract class CharacterDelimitedTokenizer
extends Tokenizer

Abstract superclass for tokenizers that take characters as delimiters.

Version:

$Revision: 1.3 $

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CharacterDelimitedTokenizer()

Method Summary

Modifier and Type	Method and Description
java.lang.String	delimitersTipText() Returns the tip text for this property
java.lang.String	getDelimiters() Get the value of delimiters (not backquoted).
java.lang.String[]	getOptions() Gets the current option settings for the OptionHandler.
java.util.Enumeration	listOptions() Returns an enumeration of all the available options..
void	setDelimiters(java.lang.String value) Set the value of delimiters.
void	setOptions(java.lang.String[] options) Sets the OptionHandler's options using the given list.

Methods inherited from class weka.core.tokenizers.Tokenizer

globalInfo, hasMoreElements, nextElement, runTokenizer, tokenize, tokenize

Methods inherited from class java.lang.Object

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

Methods inherited from interface weka.core.RevisionHandler

getRevision

Constructor Detail

CharacterDelimitedTokenizer

public CharacterDelimitedTokenizer()

Method Detail

listOptions

public java.util.Enumeration listOptions()

Returns an enumeration of all the available options..

Specified by:

listOptions in interface OptionHandler

Overrides:

listOptions in class Tokenizer

Returns:

an enumeration of all available options.

getOptions

public java.lang.String[] getOptions()

Gets the current option settings for the OptionHandler.

Specified by:

getOptions in interface OptionHandler

Overrides:

getOptions in class Tokenizer

Returns:

the list of current option settings as an array of strings

setOptions

public void setOptions(java.lang.String[] options)
                throws java.lang.Exception

Sets the OptionHandler's options using the given list. All options will be set (or reset) during this call (i.e. incremental setting of options is not possible).

Specified by:

setOptions in interface OptionHandler

Overrides:

setOptions in class Tokenizer

Parameters:

options - the list of options as an array of strings

Throws:

java.lang.Exception - if an option is not supported

getDelimiters

public java.lang.String getDelimiters()

Get the value of delimiters (not backquoted).

Returns:

Value of delimiters.

setDelimiters

public void setDelimiters(java.lang.String value)

Set the value of delimiters. For convenienve, the strings "\r", "\n", "\t", "\'", "\\" get automatically translated into their character representations '\r', '\n', '\t', '\'', '\\'. This means, one can either use setDelimiters("\r\n\t\\"); or setDelimiters("\\r\\n\\t\\\\");.

Parameters:

value - Value to assign to delimiters.

See Also:

Utils.unbackQuoteChars(String)

delimitersTipText

public java.lang.String delimitersTipText()

Returns the tip text for this property

Returns:

tip text for this property suitable for displaying in the explorer/experimenter gui