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
020package org.crsh.text;
021
022/**
023 * A textual chunk.
024 */
025public class Text implements Chunk {
026
027  /**
028   * Create a new text chunk wrapping the provided sequence.
029   *
030   * @param s the sequence
031   * @return the created text
032   * @throws NullPointerException if the sequence is null
033   */
034  public static Text create(CharSequence s) throws NullPointerException {
035    if (s == null) {
036      throw new NullPointerException("No null sequence accepted");
037    }
038    return new Text(s);
039  }
040
041  /** . */
042  final CharSequence value;
043
044  private Text(CharSequence s) {
045    this.value = s;
046  }
047
048  public CharSequence getText() {
049    return value;
050  }
051
052  @Override
053  public boolean equals(Object obj) {
054    return obj == this || obj instanceof Text && value.toString().equals(((Text)obj).value.toString());
055  }
056
057  @Override
058  public String toString() {
059    return "Text[" + value + "]";
060  }
061}