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 */
019package org.crsh.text;
020
021import java.io.IOException;
022
023/** @author Julien Viet */
024public 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.value.length() > 0) {
032          to.append(text.value);
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.value.length() > 0) {
044          to.append(text.value);
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}