#include "Behavioural/include/XMLLightFunctors.h"

using namespace morpheo::XMLUtils; 
using namespace std;

	//****************************XMLLightComparator method implementation*****************************//
	
		// the comparator functor used within parsing algorithm.

		bool XMLLightComparator::operator() ( char firstChar, char secondChar ) {
			static unsigned int counter = 0; 
			static bool  searchForEndTag = false;

			if ( searchForEndTag ) {
				if ( secondChar == END_TAG ) {
					searchForEndTag = false;
					return true;
				}
				return false;
			}

			if   
			( ( firstChar == BEGIN_TAG && secondChar == SECOND_TAG ) ||
	     		( firstChar == SECOND_TAG && secondChar == END_TAG ) ) {
				 --counter;
				if ( ! counter ) {
					if( firstChar == SECOND_TAG ) {
						return true; 
					}
					searchForEndTag = true;
					return false;
				}			
				return false;
			}
			else if ( firstChar == BEGIN_TAG ) {
				counter++; 
				return false; 
			}
			else {
				return false; 
			}
		}