[calc.git] / parser.h

#ifndef __PARSER_H__
#define __PARSER_H__

/* global variables */

extern double answer;

/* 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, Mem, Clear,
    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;
    int hidden;
} 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);

/* print function */

void set_format (char *prompt, int precision);

void free_format ();

double print (double value);

#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	/* function type */
	9
	10	typedef enum {
	11	Val = 0, Sig,
	12	Add, Sub,
	13	Mul, Div, Mod,
	14	Pow, Sqr,
	15	Cos, Sin, Tan, Acos, Asin, Atan,
	16	Log, Exp,
	17	Abs, Ceil, Floor,
	18	Store, Recall, Inc, Dec, Disp, Mem, Clear,
	19	Quit, Help,
	20	Ans, E, Pi,
	21	Equal, Diff, Ge, Le, Gt, Lt,
	22	And, Or, Not,
	23	Cond, While, Prog, Print
	24	} func_t;
	25
	26	/* keyword type */
	27
	28	typedef struct _keyword_t {
	29	char *keyword;
	30	func_t func;
	31	int nbops;
	32	int offset;
	33	float prio;
	34	} keyword_t;
	35
	36	/* calculus element type */
	37
	38	typedef struct _element_t {
	39	func_t func;
	40	int nbops;
	41	struct _element_t **ops;
	42	double value;
	43	int prio;
	44	int hidden;
	45	} element_t;
	46
	47	#define ERROR_OP ((element_t *)(-1))
	48
	49	/* parser function */
	50
	51	void delelement (element_t *root);
	52
	53	element_t parser (char str, char **next, int prio);
	54
	55	void print_element (element_t *root, int level);
	56
	57	double evaluate_element (element_t *root, char mask);
	58
	59	/* completion functions */
	60
	61	char **generate_completion_list ();
	62
	63	void free_completion_list (char **list);
	64
	65	/* print function */
	66
	67	void set_format (char *prompt, int precision);
	68
	69	void free_format ();
	70
	71	double print (double value);
	72
	73	#endif /* __PARSER_H__ */
	74
	75	/* vim: set ts=4 sw=4 et: */