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The Waikato Environment for Knowledge Analysis (WEKA), a machine learning workbench. This version represents the developer version, the "bleeding edge" of development, you could say. New functionality gets added to this version.

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/*
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see .
 */

/*
 * AbstractStopwords.java
 * Copyright (C) 2014 University of Waikato, Hamilton, New Zealand
 */

package weka.core.stopwords;

import weka.core.Option;
import weka.core.OptionHandler;
import weka.core.Utils;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.Vector;

/**
 * Ancestor for stopwords classes.
 *
 * @author  fracpete (fracpete at waikato dot ac dot nz)
 * @version $Revision: 10978 $
 */
public abstract class AbstractStopwords
  implements OptionHandler, StopwordsHandler, Serializable {

  /** for serialization. */
  private static final long serialVersionUID = -1975256329586388142L;

  /** whether the scheme has been initialized. */
  protected boolean m_Initialized;

  /** debugging flag. */
  protected boolean m_Debug;

  /**
   * Returns a string describing the stopwords scheme.
   *
   * @return a description suitable for displaying in the gui
   */
  public abstract String globalInfo();

  /**
   * Resets the scheme and the initialized state.
   */
  protected void reset() {
    m_Initialized = false;
  }

  /**
   * Returns an enumeration describing the available options.
   *
   * @return an enumeration of all the available options.
   */
  @Override
  public Enumeration

* Default implementation does nothing. */ protected void initialize() { } /** * Returns true if the given string is a stop word. * * @param word the word to test * @return true if the word is a stopword */ protected abstract boolean is(String word); /** * Returns true if the given string is a stop word. * * @param word the word to test * @return true if the word is a stopword */ @Override public boolean isStopword(String word) { boolean result; if (!m_Initialized) { if (m_Debug) debug("Initializing stopwords"); initialize(); m_Initialized = true; } result = is(word); if (m_Debug) debug(word + " --> " + result); return result; } }





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