[perl5.git] / stab.h

/* $Header: stab.h,v 3.0 89/10/18 15:23:30 lwall Locked $
 *
 *    Copyright (c) 1989, Larry Wall
 *
 *    You may distribute under the terms of the GNU General Public License
 *    as specified in the README file that comes with the perl 3.0 kit.
 *
 * $Log:	stab.h,v $
 * Revision 3.0  89/10/18  15:23:30  lwall
 * 3.0 baseline
 * 
 */

struct stabptrs {
    char        stbp_magic[4];
    STR		*stbp_val;	/* scalar value */
    struct stio *stbp_io;	/* filehandle value */
    FCMD	*stbp_form;	/* format value */
    ARRAY	*stbp_array;	/* array value */
    HASH	*stbp_hash;	/* associative array value */
    SUBR	*stbp_sub;	/* subroutine value */
    int		stbp_lastexpr;	/* used by nothing_in_common() */
    line_t	stbp_line;	/* line first declared at (for -w) */
    char	stbp_flags;
};

#define stab_magic(stab)	(((STBP*)(stab->str_ptr))->stbp_magic)
#define stab_val(stab)		(((STBP*)(stab->str_ptr))->stbp_val)
#define stab_io(stab)		(((STBP*)(stab->str_ptr))->stbp_io)
#define stab_form(stab)		(((STBP*)(stab->str_ptr))->stbp_form)
#define stab_xarray(stab)	(((STBP*)(stab->str_ptr))->stbp_array)
#define stab_array(stab)	(((STBP*)(stab->str_ptr))->stbp_array ? \
				 ((STBP*)(stab->str_ptr))->stbp_array : \
				 ((STBP*)(aadd(stab)->str_ptr))->stbp_array)
#define stab_xhash(stab)	(((STBP*)(stab->str_ptr))->stbp_hash)
#define stab_hash(stab)		(((STBP*)(stab->str_ptr))->stbp_hash ? \
				 ((STBP*)(stab->str_ptr))->stbp_hash : \
				 ((STBP*)(hadd(stab)->str_ptr))->stbp_hash)
#define stab_sub(stab)		(((STBP*)(stab->str_ptr))->stbp_sub)
#define stab_lastexpr(stab)	(((STBP*)(stab->str_ptr))->stbp_lastexpr)
#define stab_line(stab)		(((STBP*)(stab->str_ptr))->stbp_line)
#define stab_flags(stab)	(((STBP*)(stab->str_ptr))->stbp_flags)
#define stab_name(stab)		(stab->str_magic->str_ptr)

#define SF_VMAGIC 1		/* call routine to dereference STR val */
#define SF_MULTI 2		/* seen more than once */

struct stio {
    FILE	*ifp;		/* ifp and ofp are normally the same */
    FILE	*ofp;		/* but sockets need separate streams */
#if defined(I_DIRENT) || defined(I_SYSDIR)
    DIR		*dirp;		/* for opendir, readdir, etc */
#endif
    long	lines;		/* $. */
    long	page;		/* $% */
    long	page_len;	/* $= */
    long	lines_left;	/* $- */
    char	*top_name;	/* $^ */
    STAB	*top_stab;	/* $^ */
    char	*fmt_name;	/* $~ */
    STAB	*fmt_stab;	/* $~ */
    short	subprocess;	/* -| or |- */
    char	type;
    char	flags;
};

#define IOF_ARGV 1	/* this fp iterates over ARGV */
#define IOF_START 2	/* check for null ARGV and substitute '-' */
#define IOF_FLUSH 4	/* this fp wants a flush after write op */

struct sub {
    CMD		*cmd;
    char	*filename;
    long	depth;	/* >= 2 indicates recursive call */
    ARRAY	*tosave;
};

#define Nullstab Null(STAB*)

#define STAB_STR(s) (tmpstab = (s), stab_flags(tmpstab) & SF_VMAGIC ? stab_str(stab_val(tmpstab)->str_magic) : stab_val(tmpstab))
#define STAB_GET(s) (tmpstab = (s), str_get(stab_flags(tmpstab) & SF_VMAGIC ? stab_str(tmpstab->str_magic) : stab_val(tmpstab)))
#define STAB_GNUM(s) (tmpstab = (s), str_gnum(stab_flags(tmpstab) & SF_VMAGIC ? stab_str(tmpstab->str_magic) : stab_val(tmpstab)))

EXT STAB *tmpstab;

EXT STAB *stab_index[128];

EXT unsigned short statusvalue;

EXT int delaymagic INIT(0);
#define DM_DELAY 1
#define DM_REUID 2
#define DM_REGID 4

STAB *aadd();
STAB *hadd();
Commit	Line	Data
a687059c LW	1	/* $Header: stab.h,v 3.0 89/10/18 15:23:30 lwall Locked $
	2	*
	3	* Copyright (c) 1989, Larry Wall
	4	*
	5	* You may distribute under the terms of the GNU General Public License
	6	* as specified in the README file that comes with the perl 3.0 kit.
8d063cd8 LW	7	*
8d063cd8 LW	8	* $Log: stab.h,v $
a687059c LW	9	* Revision 3.0 89/10/18 15:23:30 lwall
a687059c LW	10	* 3.0 baseline
8d063cd8 LW	11	*
	12	*/
	13
a687059c LW	14	struct stabptrs {
	15	char stbp_magic[4];
	16	STR stbp_val; / scalar value */
	17	struct stio stbp_io; / filehandle value */
	18	FCMD stbp_form; / format value */
	19	ARRAY stbp_array; / array value */
	20	HASH stbp_hash; / associative array value */
	21	SUBR stbp_sub; / subroutine value */
	22	int stbp_lastexpr; /* used by nothing_in_common() */
	23	line_t stbp_line; /* line first declared at (for -w) */
	24	char stbp_flags;
8d063cd8 LW	25	};
8d063cd8 LW	26
a687059c LW	27	#define stab_magic(stab) (((STBP*)(stab->str_ptr))->stbp_magic)
	28	#define stab_val(stab) (((STBP*)(stab->str_ptr))->stbp_val)
	29	#define stab_io(stab) (((STBP*)(stab->str_ptr))->stbp_io)
	30	#define stab_form(stab) (((STBP*)(stab->str_ptr))->stbp_form)
	31	#define stab_xarray(stab) (((STBP*)(stab->str_ptr))->stbp_array)
	32	#define stab_array(stab) (((STBP*)(stab->str_ptr))->stbp_array ? \
	33	((STBP*)(stab->str_ptr))->stbp_array : \
	34	((STBP*)(aadd(stab)->str_ptr))->stbp_array)
	35	#define stab_xhash(stab) (((STBP*)(stab->str_ptr))->stbp_hash)
	36	#define stab_hash(stab) (((STBP*)(stab->str_ptr))->stbp_hash ? \
	37	((STBP*)(stab->str_ptr))->stbp_hash : \
	38	((STBP*)(hadd(stab)->str_ptr))->stbp_hash)
	39	#define stab_sub(stab) (((STBP*)(stab->str_ptr))->stbp_sub)
	40	#define stab_lastexpr(stab) (((STBP*)(stab->str_ptr))->stbp_lastexpr)
	41	#define stab_line(stab) (((STBP*)(stab->str_ptr))->stbp_line)
	42	#define stab_flags(stab) (((STBP*)(stab->str_ptr))->stbp_flags)
	43	#define stab_name(stab) (stab->str_magic->str_ptr)
	44
8d063cd8	45	#define SF_VMAGIC 1 /* call routine to dereference STR val */
378cc40b	46	#define SF_MULTI 2 /* seen more than once */
8d063cd8 LW	47
8d063cd8 LW	48	struct stio {
a687059c LW	49	FILE ifp; / ifp and ofp are normally the same */
	50	FILE ofp; / but sockets need separate streams */
	51	#if defined(I_DIRENT) \|\| defined(I_SYSDIR)
	52	DIR dirp; / for opendir, readdir, etc */
	53	#endif
	54	long lines; /* $. */
	55	long page; /* $% */
	56	long page_len; /* $= */
	57	long lines_left; /* $- */
	58	char top_name; / $^ */
	59	STAB top_stab; / $^ */
	60	char fmt_name; / $~ */
	61	STAB fmt_stab; / $~ */
	62	short subprocess; /* -\| or \|- */
8d063cd8 LW	63	char type;
	64	char flags;
	65	};
	66
	67	#define IOF_ARGV 1 /* this fp iterates over ARGV */
	68	#define IOF_START 2 /* check for null ARGV and substitute '-' */
	69	#define IOF_FLUSH 4 /* this fp wants a flush after write op */
	70
378cc40b LW	71	struct sub {
	72	CMD *cmd;
	73	char *filename;
	74	long depth; /* >= 2 indicates recursive call */
	75	ARRAY *tosave;
	76	};
	77
8d063cd8 LW	78	#define Nullstab Null(STAB*)
8d063cd8 LW	79
a687059c LW	80	#define STAB_STR(s) (tmpstab = (s), stab_flags(tmpstab) & SF_VMAGIC ? stab_str(stab_val(tmpstab)->str_magic) : stab_val(tmpstab))
	81	#define STAB_GET(s) (tmpstab = (s), str_get(stab_flags(tmpstab) & SF_VMAGIC ? stab_str(tmpstab->str_magic) : stab_val(tmpstab)))
	82	#define STAB_GNUM(s) (tmpstab = (s), str_gnum(stab_flags(tmpstab) & SF_VMAGIC ? stab_str(tmpstab->str_magic) : stab_val(tmpstab)))
8d063cd8 LW	83
	84	EXT STAB *tmpstab;
	85
	86	EXT STAB *stab_index[128];
	87
378cc40b	88	EXT unsigned short statusvalue;
8d063cd8	89
a687059c LW	90	EXT int delaymagic INIT(0);
	91	#define DM_DELAY 1
	92	#define DM_REUID 2
	93	#define DM_REGID 4
	94
8d063cd8 LW	95	STAB *aadd();
8d063cd8 LW	96	STAB *hadd();