NIREPFunctionParseEngine.h

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#pragma once
#ifndef _NIREP_FUNCTION_PARSE_ENGINE_H_
#define _NIREP_FUNCTION_PARSE_ENGINE_H_

#include <string>
#include <vector>
#include <map>

struct Node {
  Node * root;
  std::vector<Node*> child;
  std::string function;
};

struct func_info {
  std::string func;
  std::string (*ptr)(std::vector<std::string>);
};

class NIREPFunctionParseEngine
{
public:
  Node * root;
  Node * node;
  Node * current;

  std::vector<Node *> lst;
  std::vector<func_info> func_list;

  std::string str;

  std::map<std::string,std::string> cache;

  int tablecnt;

public:
  NIREPFunctionParseEngine(void);
public:
  ~NIREPFunctionParseEngine(void);

  std::string CallBackHandler();
  std::string Evaluate();
  std::string functionHandler(std::string str, std::string::size_type loc);
  std::string operatorHandler(std::string str, std::string::size_type loc);
  std::string endHandler(std::string str, std::string::size_type loc);
  std::string DispatchCallBack(std::string func, std::vector<std::string> para);

  std::string removeSpaceTabNewLineReturn(std::string str);

  bool CheckMismatchParenthesis(std::string str);
  bool CheckUndefinedFunction();

  void EvaluateString(std::string str);
  void AddCallback(std::string fn, std::string (*func)(std::vector<std::string>));
  void SetString(std::string str);
  void Delete();



};

#endif