[p5sagit/p5-mst-13.2.git] / stab.h

/* $RCSfile: stab.h,v $$Revision: 4.0.1.2 $$Date: 91/11/05 18:36:15 $
 *
 *    Copyright (c) 1991, Larry Wall
 *
 *    You may distribute under the terms of either the GNU General Public
 *    License or the Artistic License, as specified in the README file.
 *
 * $Log:	stab.h,v $
 * Revision 4.0.1.2  91/11/05  18:36:15  lwall
 * patch11: length($x) was sometimes wrong for numeric $x
 * 
 * Revision 4.0.1.1  91/06/07  11:56:35  lwall
 * patch4: new copyright notice
 * patch4: length($`), length($&), length($') now optimized to avoid string copy
 * 
 * Revision 4.0  91/03/20  01:39:49  lwall
 * 4.0 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 */
    HASH	*stbp_stash;	/* symbol table for this stab */
    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;
};

#if defined(CRIPPLED_CC) && (defined(iAPX286) || defined(M_I286) || defined(I80286))
#define MICROPORT
#endif

#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)
#ifdef	MICROPORT	/* Microport 2.4 hack */
ARRAY *stab_array();
#else
#define stab_array(stab)	(((STBP*)(stab->str_ptr))->stbp_array ? \
				 ((STBP*)(stab->str_ptr))->stbp_array : \
				 ((STBP*)(aadd(stab)->str_ptr))->stbp_array)
#endif
#define stab_xhash(stab)	(((STBP*)(stab->str_ptr))->stbp_hash)
#ifdef	MICROPORT	/* Microport 2.4 hack */
HASH *stab_hash();
#else
#define stab_hash(stab)		(((STBP*)(stab->str_ptr))->stbp_hash ? \
				 ((STBP*)(stab->str_ptr))->stbp_hash : \
				 ((STBP*)(hadd(stab)->str_ptr))->stbp_hash)
#endif			/* Microport 2.4 hack */
#define stab_stash(stab)	(((STBP*)(stab->str_ptr))->stbp_stash)
#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 */
#ifdef HAS_READDIR
    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;
    int		(*usersub)();
    int		userindex;
    STAB	*filestab;
    long	depth;	/* >= 2 indicates recursive call */
    ARRAY	*tosave;
};

#define Nullstab Null(STAB*)

STRLEN stab_len();

#define STAB_STR(s) (tmpstab = (s), stab_flags(tmpstab) & SF_VMAGIC ? stab_str(stab_val(tmpstab)->str_magic) : stab_val(tmpstab))
#define STAB_LEN(s) (tmpstab = (s), stab_flags(tmpstab) & SF_VMAGIC ? stab_len(stab_val(tmpstab)->str_magic) : str_len(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();
STAB *fstab();
Commit	Line	Data
f0fcb552	1	/* $RCSfile: stab.h,v $$Revision: 4.0.1.2 $$Date: 91/11/05 18:36:15 $
a687059c	2	*
d48672a2	3	* Copyright (c) 1991, Larry Wall
a687059c	4	*
d48672a2	5	* You may distribute under the terms of either the GNU General Public
d48672a2	6	* License or the Artistic License, as specified in the README file.
8d063cd8	7	*
8d063cd8	8	* $Log: stab.h,v $
f0fcb552	9	* Revision 4.0.1.2 91/11/05 18:36:15 lwall
	10	* patch11: length($x) was sometimes wrong for numeric $x
	11	*
d48672a2	12	* Revision 4.0.1.1 91/06/07 11:56:35 lwall
	13	* patch4: new copyright notice
	14	* patch4: length($`), length($&), length($') now optimized to avoid string copy
	15	*
fe14fcc3	16	* Revision 4.0 91/03/20 01:39:49 lwall
fe14fcc3	17	* 4.0 baseline.
8d063cd8	18	*
	19	*/
	20
a687059c	21	struct stabptrs {
	22	char stbp_magic[4];
	23	STR stbp_val; / scalar value */
	24	struct stio stbp_io; / filehandle value */
	25	FCMD stbp_form; / format value */
	26	ARRAY stbp_array; / array value */
	27	HASH stbp_hash; / associative array value */
76854fea	28	HASH stbp_stash; / symbol table for this stab */
a687059c	29	SUBR stbp_sub; / subroutine value */
	30	int stbp_lastexpr; /* used by nothing_in_common() */
	31	line_t stbp_line; /* line first declared at (for -w) */
	32	char stbp_flags;
8d063cd8	33	};
8d063cd8	34
663a0e37	35	#if defined(CRIPPLED_CC) && (defined(iAPX286) \|\| defined(M_I286) \|\| defined(I80286))
	36	#define MICROPORT
	37	#endif
	38
a687059c	39	#define stab_magic(stab) (((STBP*)(stab->str_ptr))->stbp_magic)
	40	#define stab_val(stab) (((STBP*)(stab->str_ptr))->stbp_val)
	41	#define stab_io(stab) (((STBP*)(stab->str_ptr))->stbp_io)
	42	#define stab_form(stab) (((STBP*)(stab->str_ptr))->stbp_form)
	43	#define stab_xarray(stab) (((STBP*)(stab->str_ptr))->stbp_array)
663a0e37	44	#ifdef MICROPORT /* Microport 2.4 hack */
	45	ARRAY *stab_array();
	46	#else
a687059c	47	#define stab_array(stab) (((STBP*)(stab->str_ptr))->stbp_array ? \
	48	((STBP*)(stab->str_ptr))->stbp_array : \
	49	((STBP*)(aadd(stab)->str_ptr))->stbp_array)
663a0e37	50	#endif
a687059c	51	#define stab_xhash(stab) (((STBP*)(stab->str_ptr))->stbp_hash)
663a0e37	52	#ifdef MICROPORT /* Microport 2.4 hack */
	53	HASH *stab_hash();
	54	#else
a687059c	55	#define stab_hash(stab) (((STBP*)(stab->str_ptr))->stbp_hash ? \
	56	((STBP*)(stab->str_ptr))->stbp_hash : \
	57	((STBP*)(hadd(stab)->str_ptr))->stbp_hash)
663a0e37	58	#endif /* Microport 2.4 hack */
76854fea	59	#define stab_stash(stab) (((STBP*)(stab->str_ptr))->stbp_stash)
a687059c	60	#define stab_sub(stab) (((STBP*)(stab->str_ptr))->stbp_sub)
	61	#define stab_lastexpr(stab) (((STBP*)(stab->str_ptr))->stbp_lastexpr)
	62	#define stab_line(stab) (((STBP*)(stab->str_ptr))->stbp_line)
	63	#define stab_flags(stab) (((STBP*)(stab->str_ptr))->stbp_flags)
	64	#define stab_name(stab) (stab->str_magic->str_ptr)
	65
8d063cd8	66	#define SF_VMAGIC 1 /* call routine to dereference STR val */
378cc40b	67	#define SF_MULTI 2 /* seen more than once */
8d063cd8	68
8d063cd8	69	struct stio {
a687059c	70	FILE ifp; / ifp and ofp are normally the same */
a687059c	71	FILE ofp; / but sockets need separate streams */
fe14fcc3	72	#ifdef HAS_READDIR
a687059c	73	DIR dirp; / for opendir, readdir, etc */
	74	#endif
	75	long lines; /* $. */
	76	long page; /* $% */
	77	long page_len; /* $= */
	78	long lines_left; /* $- */
	79	char top_name; / $^ */
	80	STAB top_stab; / $^ */
	81	char fmt_name; / $~ */
	82	STAB fmt_stab; / $~ */
	83	short subprocess; /* -\| or \|- */
8d063cd8	84	char type;
	85	char flags;
	86	};
	87
	88	#define IOF_ARGV 1 /* this fp iterates over ARGV */
	89	#define IOF_START 2 /* check for null ARGV and substitute '-' */
	90	#define IOF_FLUSH 4 /* this fp wants a flush after write op */
	91
378cc40b	92	struct sub {
378cc40b	93	CMD *cmd;
e929a76b	94	int (*usersub)();
e929a76b	95	int userindex;
76854fea	96	STAB *filestab;
378cc40b	97	long depth; /* >= 2 indicates recursive call */
	98	ARRAY *tosave;
	99	};
	100
8d063cd8	101	#define Nullstab Null(STAB*)
8d063cd8	102
d48672a2	103	STRLEN stab_len();
d48672a2	104
a687059c	105	#define STAB_STR(s) (tmpstab = (s), stab_flags(tmpstab) & SF_VMAGIC ? stab_str(stab_val(tmpstab)->str_magic) : stab_val(tmpstab))
f0fcb552	106	#define STAB_LEN(s) (tmpstab = (s), stab_flags(tmpstab) & SF_VMAGIC ? stab_len(stab_val(tmpstab)->str_magic) : str_len(stab_val(tmpstab)))
a687059c	107	#define STAB_GET(s) (tmpstab = (s), str_get(stab_flags(tmpstab) & SF_VMAGIC ? stab_str(tmpstab->str_magic) : stab_val(tmpstab)))
a687059c	108	#define STAB_GNUM(s) (tmpstab = (s), str_gnum(stab_flags(tmpstab) & SF_VMAGIC ? stab_str(tmpstab->str_magic) : stab_val(tmpstab)))
8d063cd8	109
	110	EXT STAB *tmpstab;
	111
	112	EXT STAB *stab_index[128];
	113
378cc40b	114	EXT unsigned short statusvalue;
8d063cd8	115
a687059c	116	EXT int delaymagic INIT(0);
	117	#define DM_DELAY 1
	118	#define DM_REUID 2
	119	#define DM_REGID 4
	120
8d063cd8	121	STAB *aadd();
8d063cd8	122	STAB *hadd();
76854fea	123	STAB *fstab();