001    /*
002     * Copyright (C) 2010 eXo Platform SAS.
003     *
004     * This is free software; you can redistribute it and/or modify it
005     * under the terms of the GNU Lesser General Public License as
006     * published by the Free Software Foundation; either version 2.1 of
007     * the License, or (at your option) any later version.
008     *
009     * This software is distributed in the hope that it will be useful,
010     * but WITHOUT ANY WARRANTY; without even the implied warranty of
011     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012     * Lesser General Public License for more details.
013     *
014     * You should have received a copy of the GNU Lesser General Public
015     * License along with this software; if not, write to the Free
016     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018     */
019    
020    package org.crsh.shell.impl;
021    
022    /**
023     * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
024     * @version $Revision$
025     */
026    abstract class Token {
027    
028      public abstract String toString();
029    
030      public static Token EOF = new Token(){
031        @Override
032        public String toString() {
033          return "EOF";
034        }
035      };
036    
037      public static Token PLUS = new Token(){
038        @Override
039        public String toString() {
040          return "PLUS";
041        }
042      };
043    
044      public static Token PIPE = new Token(){
045        @Override
046        public String toString() {
047          return "PIPE";
048        }
049      };
050    
051      public static class Command extends Token {
052    
053        /** . */
054        final String line;
055    
056        public Command(String line) {
057          this.line = line;
058        }
059    
060        @Override
061        public String toString() {
062          return "Command[" + line + "]";
063        }
064      }
065    }