/// Spart License (zlib/png)
/// 
/// 
/// Copyright (c) 2003 Jonathan de Halleux
/// 
/// This software is provided 'as-is', without any express or implied warranty. 
/// In no event will the authors be held liable for any damages arising from 
/// the use of this software.
/// 
/// Permission is granted to anyone to use this software for any purpose, 
/// including commercial applications, and to alter it and redistribute it 
/// freely, subject to the following restrictions:
/// 
/// 1. The origin of this software must not be misrepresented; you must not 
/// claim that you wrote the original software. If you use this software in a 
/// product, an acknowledgment in the product documentation would be 
/// appreciated but is not required.
/// 
/// 2. Altered source versions must be plainly marked as such, and must not be 
/// misrepresented as being the original software.
/// 
/// 3. This notice may not be removed or altered from any source distribution.
/// 
/// Author: Jonathan de Halleuxusing System;

namespace Spart.Parsers
{
	using System;
	public abstract class BinaryTerminalParser : TerminalParser
	{
		private Parser m_FirstParser;
		private Parser m_SecondParser;

		public BinaryTerminalParser(Parser first, Parser second)
		{
			FirstParser = first;
			SecondParser = second;
		}

		public Parser FirstParser
		{
			get
			{
				return m_FirstParser;
			}
			set
			{
				if (value == null)
					throw new ArgumentNullException("first parser is null");
				m_FirstParser = value;
			}
		}

		public Parser SecondParser
		{
			get
			{
				return m_SecondParser;
			}
			set
			{
				if (value == null)
					throw new ArgumentNullException("second parser is null");
				m_SecondParser = value;
			}
		}	

    
        public override Parser Clone()
        {
            BinaryTerminalParser clone = base.Clone() as BinaryTerminalParser;
            clone.m_FirstParser = m_FirstParser.Clone();
            clone.m_SecondParser = m_SecondParser.Clone();

            return clone;
        }
    }
}