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/* $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();
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