001    /**
002     *      jline - Java console input library
003     *      Copyright (c) 2002,2003 Marc Prud'hommeaux mwp1@cornell.edu
004     *      
005     *      This library is free software; you can redistribute it and/or
006     *      modify it under the terms of the GNU Lesser General Public
007     *      License as published by the Free Software Foundation; either
008     *      version 2.1 of the License, or (at your option) any later version.
009     *      
010     *      This library is distributed in the hope that it will be useful,
011     *      but WITHOUT ANY WARRANTY; without even the implied warranty of
012     *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013     *      Lesser General Public License for more details.
014     *      
015     *      You should have received a copy of the GNU Lesser General Public
016     *      License along with this library; if not, write to the Free Software
017     *      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
018     */
019    package jline;
020    
021    import java.io.*;
022    import java.util.*;
023    
024    /**
025     *      <p>
026     *      A completor that does nothing. Useful as the last item in an
027     *      {@link ArgumentCompletor}.
028     *      </p>
029     *
030     *  @author  <a href="mailto:mwp1@cornell.edu">Marc Prud'hommeaux</a>
031     */
032    public class NullCompletor
033            implements Completor
034    {
035            /**
036             *  Returns -1 always, indicating that the the buffer is never
037             *  handled.
038             */
039            public int complete (final String buffer, int cursor, List candidates)
040            {
041                    return -1;
042            }
043    }