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#ifndef FORMULA_H
#define FORMULA_H

#define OP_BAD -1

#include "gamedb.h"
#include "playerdb.h"

#define OP_NONE      0
#define OP_RTPAREN   1
#define OP_OR        2
#define OP_AND       3
#define OP_EQ        4
#define OP_NEQ       5
#define OP_GT        6
#define OP_GE        7
#define OP_LT        8
#define OP_LE        9
#define OP_PLUS     10
#define OP_MINUS    11
#define OP_MULT     12
#define OP_DIV      13
#define OP_NEGATE   14
#define OP_NOT      15

#define OPTYPE_BAD     0
#define OPTYPE_NONE    1
#define OPTYPE_RPAREN  2
#define OPTYPE_PAREN   3
#define OPTYPE_OR      4
#define OPTYPE_AND     5
#define OPTYPE_COMPEQ  6
#define OPTYPE_COMPGL  7
#define OPTYPE_ADD     8
#define OPTYPE_MULT    9
#define OPTYPE_UNARY  10

#define ERR_NONE         0
#define ERR_EOF          1
#define ERR_UNARY        2
#define ERR_BADCHAR      3
#define ERR_BADVAR       4
#define ERR_BADOP        5
#define ERR_NONESENSE    6
#define ERR_DIVBYZERO    7
#define ERR_PAREN        8

#define FUDGE_FACTOR 1e-3

extern int	 CheckFormula(game *, int, int *, int, int *, int);
extern int	 GameMatchesFormula(int, int, int, int, int, int, int, int,
		     textlist **);
extern int	 GetRating(player *, int);
extern int	 SetValidFormula(int, int, char *);
extern void	 ShowClauses(int, int, textlist *);

#endif