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// FormulaParser.h: interface for the CFormulaParser class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_FORMELPARSER_H__F802A742_8772_11D1_BD24_0000C02FB5AC__INCLUDED_) 
#define AFX_FORMELPARSER_H__F802A742_8772_11D1_BD24_0000C02FB5AC__INCLUDED_ 
 
#if _MSC_VER >= 1000 
#pragma once 
#endif // _MSC_VER >= 1000 
 
#define ANZFUNKTKONST 10 
 
class CFormulaParser   
{ 
private: 
	//Implementation 
	CString m_strFormula; 
	CString m_strFunction; 
	CString m_strErrortext; 
	double m_dFktValue; 
	double m_dFunctionConstant[ANZFUNKTKONST]; 
	CStringArray m_strStandardFunction; 
 
	double SignFactor(WORD& nPosition, CString& strCharacter); 
	double Expression(WORD& nPosition, CString& strCharacter); 
	double SimpleExpression(WORD& nPosition, CString& strCharacter); 
	double Term(WORD& nPosition, CString& strCharacter); 
	double Factor(WORD& nPosition, CString& strCharacter); 
	double Char_n(WORD& nPosition, CString& strCharacter); 
				  
public: 
	CString GetFormula(); 
	void SetFormula(CString Formula); 
	void SetFunctConst(int index, double val); 
	 
	CFormulaParser(); 
	virtual ~CFormulaParser(); 
 
	//Interface 
	double Calculation(CString strFormula, double xValue, WORD& ErrorPosition, CString& Errortext); 
}; 
 
#endif // !defined(AFX_FORMELPARSER_H__F802A742_8772_11D1_BD24_0000C02FB5AC__INCLUDED_)