tec.uom.se.internal.format.Token Maven / Gradle / Ivy

/*
 * Units of Measurement Implementation for Java SE
 * Copyright (c) 2005-2018, Jean-Marie Dautelle, Werner Keil, Otavio Santana.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of JSR-363 nor the names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
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/* 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 */
package tec.uom.se.internal.format;

/**
 * Describes the input token stream.
 *
 * @version 5.2, April 16, 2014
 */

public final class Token {

  /**
   * The Serialization identifier for this class. Increment only if the serialized form of the class changes.
   */
  // private static final long serialVersionUID = 2188279658897600591L;

  /**
   * 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=08d08345e10cca30522247698d4478e6 (do not edit this
 * line)
 */