[calc.git] / parser.h

#ifndef __PARSER_H__
#define __PARSER_H__

/* global variables */

extern double answer;

extern char format[9];

/* function type */

typedef enum {
    Val = 0, Sig,
    Add, Sub,
    Mul, Div, Mod,
    Pow, Sqr,
    Cos, Sin, Tan, Acos, Asin, Atan,
    Log, Exp,
    Abs, Ceil, Floor,
    Store, Recall, Inc, Dec, Disp,
    Quit, Help,
    Ans, E, Pi,
    Equal, Diff, Ge, Le, Gt, Lt,
    And, Or, Not,
    Cond, While, Prog, Print
} func_t;

/* keyword type */

typedef struct _keyword_t {
    char *keyword;
    func_t func;
    int nbops;
    int offset;
    float prio;
} keyword_t;

/* calculus element type */

typedef struct _element_t {
    func_t func;
    int nbops;
    struct _element_t **ops;
    double value;
    int prio;
} element_t;

#define ERROR_OP ((element_t *)(-1))

/* parser function */

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);

/* completion functions */

char **generate_completion_list ();

void free_completion_list (char **list);

#endif /* __PARSER_H__ */

/* vim: set ts=4 sw=4 et: */
Commit	Line	Data
	1	#ifndef __PARSER_H__
	2	#define __PARSER_H__
	3
	4	/* global variables */
	5
	6	extern double answer;
	7
	8	extern char format[9];
	9
	10	/* function type */
	11
	12	typedef enum {
	13	Val = 0, Sig,
	14	Add, Sub,
	15	Mul, Div, Mod,
	16	Pow, Sqr,
	17	Cos, Sin, Tan, Acos, Asin, Atan,
	18	Log, Exp,
	19	Abs, Ceil, Floor,
	20	Store, Recall, Inc, Dec, Disp,
	21	Quit, Help,
	22	Ans, E, Pi,
	23	Equal, Diff, Ge, Le, Gt, Lt,
	24	And, Or, Not,
	25	Cond, While, Prog, Print
	26	} func_t;
	27
	28	/* keyword type */
	29
	30	typedef struct _keyword_t {
	31	char *keyword;
	32	func_t func;
	33	int nbops;
	34	int offset;
	35	float prio;
	36	} keyword_t;
	37
	38	/* calculus element type */
	39
	40	typedef struct _element_t {
	41	func_t func;
	42	int nbops;
	43	struct _element_t **ops;
	44	double value;
	45	int prio;
	46	} element_t;
	47
	48	#define ERROR_OP ((element_t *)(-1))
	49
	50	/* parser function */
	51
	52	void delelement (element_t *root);
	53
	54	element_t parser (char str, char **next, int prio);
	55
	56	void print_element (element_t *root, int level);
	57
	58	double evaluate_element (element_t *root, char mask);
	59
	60	/* completion functions */
	61
	62	char **generate_completion_list ();
	63
	64	void free_completion_list (char **list);
	65
	66	#endif /* __PARSER_H__ */
	67
	68	/* vim: set ts=4 sw=4 et: */