/*				**** pscover.h ****
 *
 * This is the include file for the pscover program
 *
 */

#ifndef EXTERN
#define	EXTERN	extern
#undef INIT_VAL
#else
#define	INIT_VAL
#endif

#ifdef __MSDOS__
#define	DIRSLASH	'\\'
#else
#define	DIRSLASH	'/'
#endif

#define	KEY_NO	0		/* no variations */
#define	KEY_LRF	1		/* left, right, full */

#define	CMD_CHAR	'.'

#define	CMD_NO		0
#define	CMD_LEFT	1
#define	CMD_RIGHT	2
#define	CMD_FULL	4
#define	CMD_CENT	8

#define	ERR_ERR		0
#define	ERR_NOT		1
#define	ERR_AMB		2
#define	ERR_VAR		3

/* bit masks to determine if error code or command code */
#define	ERR_CODE	ERR_ERR + ERR_NOT + ERR_AMB
#define	CMD_CODE	CMD_LEFT + CMD_RIGHT + CMD_FULL + CMD_CENT
#define	CMD_LRF		CMD_LEFT + CMD_RIGHT + CMD_FULL

struct	keytab
{
	char	*key_word;			/* command keyword */
	int		key_type;			/* type of command */
	int		key_mask;			/* valid variations */
	void	(*key_fcn)(FILE *, FILE *, char *, struct keytab *);		/* command processor */
};

/* prototypes */

void	init(void);
void	pscover(FILE *, FILE *, int, int);
void	prologue_ps(FILE *);
void	do_help(char *);
void	do_usage(char *);
char	*get_line(char *, int, FILE *);
struct keytab *find_cmd(char *);
char	*strbeg(char *, char *);
char	*get_data(char *, char *);
FILE	*open_file(char *, char *);
void	new_page(FILE *);
void	copy_line(FILE *, char *);
void	print_song(char *, FILE *);
void	parse_cmd(FILE *, char *, struct keytab *);
void	out_dat(FILE *);
void	out_just(int, FILE *);
void	out_str(char *, FILE *);
void	dat_str(FILE *);
void	print_parms(char *, FILE *, FILE *, char *, struct keytab *);

	/* functions to process keywords */
void	do_cover(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_wrapup(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_artist(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_title(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_tab(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_side(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_date(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_noise(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_noise(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_newline(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_songs(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_newfont(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_set(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_err(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_line(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_song(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_dblsong(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_marg(FILE *fp, FILE *ofp, char *, struct keytab *);
void	do_code(FILE *fp, FILE *ofp, char *, struct keytab *);

EXTERN	struct	keytab	KeyTab[]
#ifdef	INIT_VAL
= {
"cover",	KEY_LRF,	CMD_CODE,				do_cover,
"wrapup",	KEY_NO,		CMD_NO,					do_wrapup,
"artist",	KEY_LRF,	CMD_CODE,				do_artist,
"title",	KEY_LRF,	CMD_CODE,				do_title,
"tab",		KEY_LRF,	CMD_CODE,				do_tab,
"side",		KEY_LRF,	CMD_LRF,				do_side,
"date",		KEY_NO,		CMD_NO,					do_date,
"noise",	KEY_NO,		CMD_NO,					do_noise,
"nr",		KEY_NO,		CMD_NO,					do_noise,
"newline",	KEY_NO,		CMD_NO,					do_newline,
"oldline",	KEY_NO,		CMD_NO,					do_newline,
"songs",	KEY_LRF,	CMD_CODE,				do_songs,
"newfont",	KEY_NO,		CMD_NO,					do_newfont,
"set",		KEY_NO,		CMD_NO,					do_set,
"print",		KEY_LRF,	CMD_CODE,				do_song,
"line",		KEY_LRF,	CMD_CODE,				do_song,
"doublesong", KEY_NO,	CMD_NO,					do_dblsong,
"doubleline", KEY_NO,	CMD_NO,					do_dblsong,
"marg",		KEY_LRF,	CMD_LRF,				do_marg,
"begcode",		KEY_NO,		CMD_NO,				do_code,
"endcode",		KEY_NO,		CMD_NO,				do_code,
NULL,		-1,		NULL}
#endif
;

EXTERN	struct	keytab ErrTab[]
#ifdef  INIT_VAL
= {
"Internal Error", ERR_ERR, ERR_CODE, do_err,
"Command not found", ERR_NOT, ERR_CODE, do_err,
"Ambiguous command", ERR_AMB, ERR_CODE, do_err,
"Invalid variation", ERR_VAR, ERR_CODE, do_err
}
#endif
;

EXTERN	char	*Prog;					/* program name */
EXTERN	int		cmd_type;				/* command type */
EXTERN	int		cmd_just;				/* command mode */
EXTERN	char	*cmd_dat;				/* command data */
EXTERN	int		song_just;				/* justification for songs */
EXTERN	int		PageNo;					/* physical page number */
EXTERN	int		LineNo;					/* input file line number */
EXTERN	int		debugsw;				/* debug switch */