/* macro defs for 'select area' and 'select area index' */ 
#define SA s[area] 
#define SI SA->i[SA->ord] 

typedef struct child
{
	char a;
	char i;
}   child;
typedef struct parent
{   
	char a;
	char i;
}   parent;		
typedef struct rel
{
	child  c;
	parent p;   
}   rel;	

void   select(char newarea);
void   order(char area, char neworder);
void   use(string pstr1, string pstr2, char indexed);
void   close_area(char area);  
void   build_index(string xfile, int order); 
int    update_index();
int    open_index(char *fn,int dupok);
int    close_index(IX_DESC *pix);
void   reindex(char *idxname);  
int    skip(int skipped);
int    top();
int    bottom();
char   delete_rec(char area); 
int    append_blank(char area);        
int    save_rec(char area);
int    edit_field(char *fld_str,char *newstr);
int    find(char *key);       
void   locate(string field, string fld_data);
int    match(string fld_str);
int    strnicmps(char *str1,char *str2) ;
void   ascendtree();
void   descendtree();
void   relation(char a,char o); 
void   setrelationships(char a,char o); 
void   initcmds();        
void   relate(int c_area,int c_order,int p_area,int p_order);
void   copyfile(char *cp[]);    

/* following functions use printf */ 
void   sayfield(int field_idx); 
void   display();