/*
   Copyright 2011 frank asseg

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

 */
package de.congrace.exp4j;

import java.util.Stack;

/**
 * Superclass for tokenized Strings
 * 
 * @author fas@congrace.de
 */
abstract class Token {
	private final String value;

	/**
	 * construct a new {@link Token}
	 * 
	 * @param value
	 *            the value of the {@link Token}
	 */
	Token(String value) {
		super();
		this.value = value;
	}

	/**
	 * get the value (String representation) of the token
	 * 
	 * @return the value
	 */
	String getValue() {
		return value;
	}

	abstract void mutateStackForInfixTranslation(Stack<Token> operatorStack, StringBuilder output);
}