/* function type */
typedef enum {
- Val = 0,
+ Val = 0, Sig,
Add, Sub,
- Mul, Div, Pow,
- Sqr,
+ Mul, Div, Mod,
+ Pow, Sqr,
Cos, Sin, Atn,
- Log, Exp
+ Log, Exp,
+ Qui, Hel
} func_t;
/* keyword type */
func_t func;
int nbops;
int offset;
+ int prio;
} keyword_t;
/* calculus element type */
-#define MAX_OPERANDS 2
+#define MAX_OPERANDS 10
typedef struct _element_t {
func_t func;
int nbops;
struct _element_t *ops[MAX_OPERANDS];
- float value;
+ double value;
+ int prio;
} element_t;
+#define ERROR_OP ((element_t *)(-1))
+
/* parser function */
-element_t *parser (char *str);
+void delelement (element_t *root);
+
+element_t *parser (char *str, char **next, int prio);
void print_element (element_t *root, int level);
+double evaluate_element (element_t *root, char mask);
+
#endif /* __PARSER_H__ */
/* vim: set ts=4 sw=4 et: */