#ifndef _RESULTREADER_H_
#define _RESULTREADER_H_

#include <vector>
#include <string>
#include "grammar.h"
#include "tToken.h"
		
template <typename Data>
class ResultReader
{
	Grammar _g;
	Data &_d;
	
	// called on internal node when the node values are read
	// arguments are node name, node ancestors, edge number, score, start, end
	void (*_start_int_node_funct)(Grammar &, std::string, std::vector<tToken> &,
		int, double, int, int, Data &);
	
	// called on internal node once all subtrees are parsed
	// arguments are names of direct child(ren), node ancestors
	void (*_end_int_node_funct)(Grammar &, std::vector<tToken> &, 
		std::vector<tToken> &, Data &);

	// called when a leaf node is parsed
	// arguments are surface string, node ancestors
	void (*_leaf_funct)(Grammar &, std::string, std::vector<tToken> &, Data &);

	// recursive functions for reading the tree
	std::string subtreepair(std::string const &, int, 
		std::vector<tToken> &);
	std::string const subtree(std::string const &, int, 
		std::vector<tToken> &);
	
public:
	// constructer requires function pointers
	ResultReader(Grammar const &g, Data &d,
		void (*start_int_node)(Grammar &, std::string, std::vector<tToken> &,
			int, double, int, int, Data &)=NULL,
		void (*end_int_node)(Grammar &, std::vector<tToken> &, 
			std::vector<tToken> &, Data &)=NULL,
		void (*leaf)(Grammar &, std::string, std::vector<tToken> &, Data &)=NULL);
	~ResultReader();

	void readResult(std::string);
};

#endif