#ifndef __VASK_H__
#define __VASK_H__

#include	<signal.h>
#include	<curses.h>

#ifdef MAKE_VASK_LIB
#define 	MAX_ANSW	80
#define 	MAX_CONST	80
#define 	MAX_LINE	23

/**
*** target contains all the variable type that we will want to
*** be looking for.
**/
union target
{
    char *c;
    short *h;
    int *i;
    long *l;
    float *f;
    double *d;
    double for_alignement;
};

/**
*** ans_rec contains all the information needed to go
*** and get an answer from the screen.
**/
struct ans_rec
{
    union target targetptr;	/* pointer to value     */
    int var_type;		/* value type           */
    int row;			/* row position         */
    int col;			/* column position      */
    int length;			/* length of entry      */
    int decimal_places;		/* number of decimal places */
};

/**
*** page is an array of pointers to lines on a page.
**/
struct page
{
    const char *line[MAX_LINE];
};

struct V__
{
    struct ans_rec usr_answ[MAX_ANSW];
    struct ans_rec constant[MAX_CONST];

    struct page page;

    int NUM_ANSW;
    int NUM_CONST;
    int NUM_LINE;

    int decimal_places;
    char interrupt_msg[80];
};

/* one of the library routines (V_call) will define this struct */
extern struct V__ V__;

#endif

void V_float_accuracy(int);
int V_call(void);
void V_intrpt_ok(void);
void V_intrpt_msg(const char *);
void V_clear(void);
int V_const(void *, int, int, int, int);
void V_error(const char *, ...);
void V_exit(void);
void V_init(void);
int V_line(int, const char *);
int V_ques(void *, int, int, int, int);
int V__dump_window(void);
void V__remove_trail(int, char *);
void V__trim_decimal(char *);

#endif /* __VASK_H__ */