abCalc/expr/abCExpr.h

52 lines
1009 B
C

/*
abCExpr.h
By: Jeremy Rand
*/
#ifndef ABCEXPR_H
#define ABCEXPR_H
typedef enum abCalcExprType {
abCalcExprTypeMin = 0,
abCalcExprTypeReal = 0,
abCalcExprTypeInt,
abCalcExprTypeMax
} abCalcExprType;
typedef double abCalcRealType;
typedef unsigned long abCalcIntType;
#define AB_CALC_EXPR_MAX_INT_WIDTH ((sizeof(abCalcIntType) * 8))
#define AB_CALC_EXPR_STRING_MAX (AB_CALC_EXPR_MAX_INT_WIDTH + 8)
typedef struct abCalcExpr {
abCalcExprType type;
union {
abCalcRealType real;
abCalcIntType integer;
} u;
} abCalcExpr;
typedef struct abCalcExprCallbacks {
abCalcExpr * (*parseExpr)(abCalcExpr *expr, char *buffer);
char * (*formatExpr)(abCalcExpr *expr, char *buffer);
} abCalcExprCallbacks;
void abCalcExprInit(void);
void abCalcRegisterExprType(abCalcExprType type, abCalcExprCallbacks *callbacks);
abCalcExpr *abCalcParseExpr(abCalcExpr *expr, char *buffer);
char *abCalcFormatExpr(abCalcExpr *expr, char *buffer);
#endif