bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/java/jspel/Token.java

/*******************************************************************************
 * Copyright (c) 2005 BEA Systems and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     BEA Systems - initial implementation
 *     
 *******************************************************************************/
/* Generated By:JavaCC: Do not edit this line. Token.java Version 3.0 */
package org.eclipse.wst.jsdt.web.core.internal.java.jspel;

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

public class Token {

	/**
	 * 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;

	/**
	 * beginLine and beginColumn describe the position of the first character of
	 * this token; endLine and endColumn describe the position of the last
	 * character of this token.
	 */
	public int beginLine, beginColumn, endLine, 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;

	/**
	 * Returns the image.
	 */
	@Override
	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, simlpy add something like :
	 * 
	 * case MyParserConstants.ID : return new IDToken();
	 * 
	 * to the following switch statement. Then you can cast matchedToken
	 * variable to the appropriate type and use it in your lexical actions.
	 */
	public static final Token newToken(int ofKind) {
		switch (ofKind) {
		default:
			return new Token();
		}
	}

}