/*******************************************************************************
 * Copyright (c) 2005, 2010 Andrea Bittau, University College London, 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:
 *     Andrea Bittau - initial API and implementation from the PsychoPath XPath 2.0 
 *     Mukul Gandhi - bug 280798 - PsychoPath support for JDK 1.4
 *******************************************************************************/

package org.eclipse.wst.xml.xpath2.processor.internal.ast;

import org.eclipse.wst.xml.xpath2.processor.internal.types.*;

/**
 * The value of a string literal is an atomic value whose type is xs:string and
 * whose value is the string denoted by the characters between the delimiting
 * apostrophes or quotation marks. If the literal is delimited by apostrophes,
 * two adjacent apostrophes within the literal are interpreted as a single
 * apostrophe. Similarly, if the literal is delimited by quotation marks, two
 * adjacent quotation marks within the literal are interpreted as one quotation
 * mark
 * 
 */
public class StringLiteral extends Literal {
	private XSString _value;

	/**
	 * Constructor for StringLiteral
	 * 
	 * @param value
	 *            string value
	 */
	public StringLiteral(String value) {
		_value = new XSString(value);
	}

	/**
	 * Support for Visitor interface.
	 * 
	 * @return Result of Visitor operation.
	 */
	public Object accept(XPathVisitor v) {
		return v.visit(this);
	}

	/**
	 * @return string value
	 */
	public String string() {
		return _value.value();
	}

	/**
	 * @return xs:string value
	 */
	public XSString value() {
		return _value;
	}
}