[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,
    Prog, Call, List, Edit, Del
} 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))

/* workspace type */

typedef struct _workspace_t {
    int id;
    double answer;
    double *storage;
    element_t *root;
} workspace_t;

/* 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	Prog, Call, List, Edit, Del
	25	} func_t;
	26
	27	/* keyword type */
	28
	29	typedef struct _keyword_t {
	30	char *keyword;
	31	func_t func;
	32	int nbops;
	33	int offset;
	34	float prio;
	35	} keyword_t;
	36
	37	/* calculus element type */
	38
	39	typedef struct _element_t {
	40	func_t func;
	41	int nbops;
	42	struct _element_t **ops;
	43	double value;
	44	int prio;
	45	int hidden;
	46	} element_t;
	47
	48	#define ERROR_OP ((element_t *)(-1))
	49
	50	/* workspace type */
	51
	52	typedef struct _workspace_t {
	53	int id;
	54	double answer;
	55	double *storage;
	56	element_t *root;
	57	} workspace_t;
	58
	59	/* parser function */
	60
	61	void delelement (element_t *root);
	62
	63	element_t parser (char str, char **next, int prio);
	64
	65	void print_element (element_t *root, int level);
	66
	67	double evaluate_element (element_t *root, char mask);
	68
	69	/* completion functions */
	70
	71	char **generate_completion_list ();
	72
	73	void free_completion_list (char **list);
	74
	75	/* print function */
	76
	77	void set_format (char *prompt, int precision);
	78
	79	void free_format ();
	80
	81	double print (double value);
	82
	83	#endif /* __PARSER_H__ */
	84
	85	/* vim: set ts=4 sw=4 et: */