/*
* JGAAP -- a graphical program for stylometric authorship attribution
* Copyright (C) 2009,2011 by Patrick Juola
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
**/
package com.jgaap.eventDrivers;
import com.jgaap.generics.EventDriver;
import com.jgaap.generics.EventGenerationException;
import com.jgaap.util.Event;
import com.jgaap.util.EventSet;
/**
* Calculates N (parameter) character suffix of Events, useful for extracting
* English suffixes like "-tion" or "-er" or "-est." Of course, it also works
* on other languages.
* @author Patrick Juola
* @since 5.0
*/
public class SuffixEventDriver extends EventDriver {
public SuffixEventDriver() {
addParams("length", "Length", "3", new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10"}, false);
addParams("minimumlength", "Minimum Length", "5", new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10"}, false);
}
@Override
public String displayName() {
return "Suffices";
}
@Override
public String tooltipText() {
return "Last (default=3) characters of Events (default=words)";
}
@Override
public boolean showInGUI() {
return true;
}
private NaiveWordEventDriver wordEventDriver = new NaiveWordEventDriver();
@Override
public EventSet createEventSet(char[] text) throws EventGenerationException {
int length = getParameter("length", 3);
int minimumlength = getParameter("mimimnmlength", 5);
EventSet es = wordEventDriver.createEventSet(text);
EventSet newEs = new EventSet();
for (int i = 0; i < es.size(); i++) {
String s = (es.eventAt(i)).toString();
if (s.length() >= minimumlength) {
try {
newEs.addEvent(new Event(s.substring(s.length()-length), this));
} catch (Exception e) {
System.out.println("Error in truncating " + s);
}
}
// do not add if less than minimum length
}
return newEs;
}
}