package clist.visitor;

import clist.CLList;

public class FoldHelper implements ICLVisitor
{
	public final static FoldHelper Singleton = new FoldHelper ();

	private FoldHelper()
	{
	}

	/**
	 * @param host 
	 * @param start 
	 * @param input 
	 * @return 
	 */
	public Object nullCase(CLList host, CLList start, Object input)
	{
		return "";
	}

	/**
	 * @param host 
	 * @param start 
	 * @param input 
	 * @return 
	 */
	public Object nonNullCase(CLList host, CLList start, Object input)
	{
      /*
      AGarment g;
      if (host.clockwiseTail().equals(start))
      {
         g = (AGarment) host.remClockwise();
         g.toCleanPile ();
         retrun g.toString() + ".";
      }
      else
      {
         g = (AGarment) host.remClockwise();
         g.toCleanPile ();
         g.toString() + ", " + (String)host.excecute(this, start, null);
      }
      */
		return (null); // NYI
	}
}