001    /*
002     * Copyright (C) 2012 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    package org.crsh.text;
020    
021    import java.io.IOException;
022    
023    /** @author Julien Viet */
024    public enum Format {
025    
026      TEXT() {
027        @Override
028        public void append(Chunk chunk, Appendable to) throws IOException {
029          if (chunk instanceof Text) {
030            Text text = (Text)chunk;
031            if (text.buffer.length() > 0) {
032              to.append(text.buffer);
033            }
034          }
035        }
036      },
037    
038      ANSI() {
039        @Override
040        public void append(Chunk chunk, Appendable to) throws IOException {
041          if (chunk instanceof Text) {
042            Text text = (Text)chunk;
043            if (text.buffer.length() > 0) {
044              to.append(text.buffer);
045            }
046          } else if (chunk instanceof Style) {
047            ((Style)chunk).writeAnsiTo(to);
048          }
049        }
050      };
051    
052      public abstract void append(Chunk chunk, Appendable to) throws IOException;
053    
054    }