Token.java

/* Generated By:JavaCC: Do not edit this line. Token.java Version 5.0 */
/* JavaCCOptions:TOKEN_EXTENDS=,KEEP_LINE_COL=null,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */
/*
 *   Copyright (C) 2005 Christian Schulte <cs@schulte.it>
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *     o Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     o Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *
 *   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 *   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 *   AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 *   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT,
 *   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *   THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *   $JOMC: VersionParser.jj 5091 2016-04-04 15:40:17Z schulte $
 *
 */
package org.jomc.util;

/**
 * Describes the input token stream.
 */

public class Token implements java.io.Serializable {

  /**
   * The version identifier for this Serializable class.
   * Increment only if the <i>serialized</i> form of the
   * class changes.
   */
  private static final long serialVersionUID = 1L;

  /**
   * An integer that describes the kind of this token.  This numbering
   * system is determined by JavaCCParser, and a table of these numbers is
   * stored in the file ...Constants.java.
   */
  public int kind;

  /** The line number of the first character of this Token. */
  public int beginLine;
  /** The column number of the first character of this Token. */
  public int beginColumn;
  /** The line number of the last character of this Token. */
  public int endLine;
  /** The column number of the last character of this Token. */
  public int endColumn;

  /**
   * The string image of the token.
   */
  public String image;

  /**
   * A reference to the next regular (non-special) token from the input
   * stream.  If this is the last token from the input stream, or if the
   * token manager has not read tokens beyond this one, this field is
   * set to null.  This is true only if this token is also a regular
   * token.  Otherwise, see below for a description of the contents of
   * this field.
   */
  public Token next;

  /**
   * This field is used to access special tokens that occur prior to this
   * token, but after the immediately preceding regular (non-special) token.
   * If there are no such special tokens, this field is set to null.
   * When there are more than one such special token, this field refers
   * to the last of these special tokens, which in turn refers to the next
   * previous special token through its specialToken field, and so on
   * until the first special token (whose specialToken field is null).
   * The next fields of special tokens refer to other special tokens that
   * immediately follow it (without an intervening regular token).  If there
   * is no such token, this field is null.
   */
  public Token specialToken;

  /**
   * An optional attribute value of the Token.
   * Tokens which are not used as syntactic sugar will often contain
   * meaningful values that will be used later on by the compiler or
   * interpreter. This attribute value is often different from the image.
   * Any subclass of Token that actually wants to return a non-null value can
   * override this method as appropriate.
   */
  public Object getValue() {
    return null;
  }

  /**
   * No-argument constructor
   */
  public Token() {}

  /**
   * Constructs a new token for the specified Image.
   */
  public Token(int kind)
  {
    this(kind, null);
  }

  /**
   * Constructs a new token for the specified Image and Kind.
   */
  public Token(int kind, String image)
  {
    this.kind = kind;
    this.image = image;
  }

  /**
   * Returns the image.
   */
  public String toString()
  {
    return image;
  }

  /**
   * Returns a new Token object, by default. However, if you want, you
   * can create and return subclass objects based on the value of ofKind.
   * Simply add the cases to the switch for all those special cases.
   * For example, if you have a subclass of Token called IDToken that
   * you want to create if ofKind is ID, simply add something like :
   *
   *    case MyParserConstants.ID : return new IDToken(ofKind, image);
   *
   * to the following switch statement. Then you can cast matchedToken
   * variable to the appropriate type and use sit in your lexical actions.
   */
  public static Token newToken(int ofKind, String image)
  {
    switch(ofKind)
    {
      default : return new Token(ofKind, image);
    }
  }

  public static Token newToken(int ofKind)
  {
    return newToken(ofKind, null);
  }

}
/* JavaCC - OriginalChecksum=ff07e18e294bee4dd154be05a0ab2859 (do not edit this line) */