/* Fonctions Exp développés par DarkBatcher pour DOS 9.
http://dos9.franceserv.fr/ */

#ifndef CONSOLE_EXP_H_INCLUDE
#define CONSOLE_EXP_H_INCLUDE

typedef struct EXPSTART EXPSTART;
typedef struct EXPSTART* LPEXPSTART;
typedef struct EXPRESSION EXPRESSION;
typedef struct EXPRESSION* LPEXPRESSION;

struct EXPSTART {
    int iHigherPriorite;
    int tblLenght;
    LPEXPRESSION lpeStart;
};

struct EXPRESSION {
    union
    {
        int iValue;
        double dValue;
    };
    char cOpperation;
    unsigned int iPriorite;
    LPEXPRESSION lpeNext;
};

/* enumeration des operation */

enum {
    EXPRESSION_INTEGERS,EXPRESSION_FLOATS
};

/* constantes pour Expression Load */
#define LASTOPERATION_OPERATOR 0x01
#define LASTOPERATION_OPENINGPARENT 0x02
#define LASTOPERATION_CLOSINGPARENT 0x04
#define LASTOPERATION_DIGIT 0x08
#define LASTOPERATION_NULL_CHAR 0x10

/* constante de masque pour les chiffres */
#define MASQUE_NUMBERS 0x0F

int ExpressionLoad(LPEXPSTART lpesStart,char* ptrExpression, char mode);
int ExpressionCalculate(LPEXPSTART lpesExpression, char mode, double* ptrdResult, int* ptriResult);
int ExpressionDelete(LPEXPSTART lpesExpression);

#endif