/*
 * This file is part of PetaScope.
 *
 * PetaScope is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * PetaScope is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with PetaScope. If not, see <http://www.gnu.org/licenses/>.
 *
 * For more information please see <http://www.PetaScope.org>
 * or contact Peter Baumann via <baumann@rasdaman.com>.
 *
 * Copyright 2009 Jacobs University Bremen, Peter Baumann.
 */




package grammar;

/**
 * @author: Andrei Aiordachioaie
 */

public class StringScalarExpr implements IParseTreeNode
{
	CoverageExpr cov;
	String function;
	String op;
	String val;

	public StringScalarExpr(String val)
	{
		this.val      = val;
		this.function = "stringConstant";
	}

	public StringScalarExpr(String op, CoverageExpr cov)
	{
		this.cov = cov;
		function = "stringIdentifier";
		this.op  = op;
	}

	public String toXML()
	{
		String result = "<" + function + ">";

		if (function.equals("stringConstant"))
		{
			result += val;
		}
		else if (function.equals("stringIdentifier"))
		{
			result += cov.toXML();
		}

		result += "</" + function + ">";

		return result;
	}
}