1 /* $RCSfile: perl.h,v $$Revision: 4.1 $$Date: 92/08/07 18:25:56 $
3 * Copyright (c) 1991, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
9 * Revision 4.1 92/08/07 18:25:56 lwall
11 * Revision 4.0.1.6 92/06/08 14:55:10 lwall
12 * patch20: added Atari ST portability
13 * patch20: bcopy() and memcpy() now tested for overlap safety
14 * patch20: Perl now distinguishes overlapped copies from non-overlapped
15 * patch20: removed implicit int declarations on functions
17 * Revision 4.0.1.5 91/11/11 16:41:07 lwall
18 * patch19: uts wrongly defines S_ISDIR() et al
19 * patch19: too many preprocessors can't expand a macro right in #if
20 * patch19: added little-endian pack/unpack options
22 * Revision 4.0.1.4 91/11/05 18:06:10 lwall
23 * patch11: various portability fixes
24 * patch11: added support for dbz
25 * patch11: added some support for 64-bit integers
26 * patch11: hex() didn't understand leading 0x
28 * Revision 4.0.1.3 91/06/10 01:25:10 lwall
29 * patch10: certain pattern optimizations were botched
31 * Revision 4.0.1.2 91/06/07 11:28:33 lwall
32 * patch4: new copyright notice
33 * patch4: made some allowances for "semi-standard" C
34 * patch4: many, many itty-bitty portability fixes
36 * Revision 4.0.1.1 91/04/11 17:49:51 lwall
37 * patch1: hopefully straightened out some of the Xenix mess
39 * Revision 4.0 91/03/20 01:37:56 lwall
50 #include "config_c++.h"
56 # define BYTEORDER 0x1234
59 /* Overall memory policy? */
65 * The following contortions are brought to you on behalf of all the
66 * standards, semi-standards, de facto standards, not-so-de-facto standards
67 * of the world, as well as all the other botches anyone ever thought of.
68 * The basic theory is that if we work hard enough here, the rest of the
69 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
74 # define malloc Mymalloc
75 # define realloc Myremalloc
78 # define safemalloc malloc
79 # define saferealloc realloc
80 # define safefree free
83 /* work around some libPW problems */
88 /* define this once if either system, instead of cluttering up the src */
89 #if defined(MSDOS) || defined(atarist)
93 #if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
97 #if defined(STANDARD_C)
103 #if defined(HASVOLATILE) || defined(STANDARD_C)
105 # define VOL // to temporarily suppress warnings
107 # define VOL volatile
113 #define TAINT_IF(c) (tainted |= (c))
114 #define TAINT_NOT (tainted = 0)
115 #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
116 #define TAINT_ENV() if (tainting) taint_env()
139 # ifdef PARAM_NEEDS_TYPES
140 # include <sys/types.h>
142 # include <sys/param.h>
146 /* Use all the "standard" definitions? */
152 # define MEM_SIZE size_t
154 typedef unsigned int MEM_SIZE;
155 #endif /* STANDARD_C */
157 #if defined(HAS_MEMCMP) && defined(mips) && defined(ultrix)
162 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
164 extern char * memcpy P((char*, char*, int));
170 # define memcpy(d,s,l) bcopy(s,d,l)
172 # define memcpy(d,s,l) my_bcopy(s,d,l)
175 #endif /* HAS_MEMCPY */
178 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
180 extern char *memset P((char*, int, int));
183 # define memzero(d,l) memset(d,0,l)
187 # define memzero(d,l) bzero(d,l)
189 # define memzero(d,l) my_bzero(d,l)
192 #endif /* HAS_MEMSET */
195 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
197 extern int memcmp P((char*, char*, int));
202 # define memcmp(s1,s2,l) my_memcmp(s1,s2,l)
204 #endif /* HAS_MEMCMP */
206 /* we prefer bcmp slightly for comparisons that don't care about ordering */
209 # define bcmp(s1,s2,l) memcmp(s1,s2,l)
211 #endif /* HAS_BCMP */
213 #if !defined(HAS_MEMMOVE) && !defined(memmove)
214 # if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
215 # define memmove(d,s,l) bcopy(s,d,l)
217 # if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
218 # define memmove(d,s,l) memcpy(d,s,l)
220 # define memmove(d,s,l) my_bcopy(s,d,l)
225 #ifndef _TYPES_ /* If types.h defines this it's easy. */
226 # ifndef major /* Does everyone's types.h define this? */
227 # include <sys/types.h>
232 # include <netinet/in.h>
235 #include <sys/stat.h>
237 #if defined(uts) || defined(UTekV)
244 # define S_ISDIR(P) (((P)&S_IFMT)==S_IFDIR)
245 # define S_ISCHR(P) (((P)&S_IFMT)==S_IFCHR)
246 # define S_ISBLK(P) (((P)&S_IFMT)==S_IFBLK)
247 # define S_ISREG(P) (((P)&S_IFMT)==S_IFREG)
248 # define S_ISFIFO(P) (((P)&S_IFMT)==S_IFIFO)
250 # define S_ISLNK(P) (((P)&S_IFMT)==S_IFLNK)
259 # ifdef I_SYS_TIME_KERNEL
262 # include <sys/time.h>
263 # ifdef I_SYS_TIME_KERNEL
270 # include <sys/times.h>
274 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
281 # include <net/errno.h>
287 extern int errno; /* ANSI allows errno to be an lvalue expr */
292 char *strerror P((int));
294 # define Strerror strerror
297 # ifdef HAS_SYS_ERRLIST
299 extern char *sys_errlist[];
301 # define Strerror(e) \
302 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
309 # include <sys/ioctl.h>
313 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
314 # ifdef HAS_SOCKETPAIR
315 # undef HAS_SOCKETPAIR
330 #if defined(I_DIRENT)
332 # define DIRENT dirent
335 # include <sys/ndir.h>
336 # define DIRENT direct
340 # include <ndir.h> /* may be wrong in the future */
342 # include <sys/dir.h>
344 # define DIRENT direct
350 /* work around botch in SunOS 4.0.1 and 4.0.2 */
352 # define fputs(sv,fp) fprintf(fp,"%s",sv)
357 * The following gobbledygook brought to you on behalf of __STDC__.
358 * (I could just use #ifndef __STDC__, but this is more bulletproof
359 * in the face of half-implementations.)
364 # define S_IFMT _S_IFMT
366 # define S_IFMT 0170000
371 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
375 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
380 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
382 # define S_ISBLK(m) (0)
387 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
392 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
394 # define S_ISFIFO(m) (0)
400 # define S_ISLNK(m) _S_ISLNK(m)
403 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
406 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
408 # define S_ISLNK(m) (0)
416 # define S_ISSOCK(m) _S_ISSOCK(m)
419 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
422 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
424 # define S_ISSOCK(m) (0)
432 # define S_IRUSR S_IREAD
433 # define S_IWUSR S_IWRITE
434 # define S_IXUSR S_IEXEC
436 # define S_IRUSR 0400
437 # define S_IWUSR 0200
438 # define S_IXUSR 0100
440 # define S_IRGRP (S_IRUSR>>3)
441 # define S_IWGRP (S_IWUSR>>3)
442 # define S_IXGRP (S_IXUSR>>3)
443 # define S_IROTH (S_IRUSR>>6)
444 # define S_IWOTH (S_IWUSR>>6)
445 # define S_IXOTH (S_IXUSR>>6)
449 # define S_ISUID 04000
453 # define S_ISGID 02000
460 #if defined(cray) || defined(gould) || defined(i860)
461 # define SLOPPYDIVIDE
464 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
472 # if defined(convex) || defined (uts)
473 # define quad long long
481 # define VOIDRET void
489 # include "unixish.h"
493 #define pause() sleep((32767<<16)+32767)
498 /* on BSDish systes we're safe */
499 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
501 /* otherwise guess at what's safe */
502 # define IOCPARM_LEN(x) 256
506 typedef MEM_SIZE STRLEN;
508 typedef struct op OP;
509 typedef struct cop COP;
510 typedef struct unop UNOP;
511 typedef struct binop BINOP;
512 typedef struct listop LISTOP;
513 typedef struct logop LOGOP;
514 typedef struct condop CONDOP;
515 typedef struct pmop PMOP;
516 typedef struct svop SVOP;
517 typedef struct gvop GVOP;
518 typedef struct pvop PVOP;
519 typedef struct cvop CVOP;
520 typedef struct loop LOOP;
522 typedef struct Outrec Outrec;
523 typedef struct lstring Lstring;
524 typedef struct interpreter PerlInterpreter;
525 typedef struct ff FF;
526 typedef struct sv SV;
527 typedef struct av AV;
528 typedef struct hv HV;
529 typedef struct cv CV;
530 typedef struct regexp REGEXP;
531 typedef struct gp GP;
532 typedef struct sv GV;
533 typedef struct io IO;
534 typedef struct context CONTEXT;
535 typedef struct block BLOCK;
537 typedef struct magic MAGIC;
538 typedef struct xrv XRV;
539 typedef struct xpv XPV;
540 typedef struct xpviv XPVIV;
541 typedef struct xpvnv XPVNV;
542 typedef struct xpvmg XPVMG;
543 typedef struct xpvlv XPVLV;
544 typedef struct xpvav XPVAV;
545 typedef struct xpvhv XPVHV;
546 typedef struct xpvgv XPVGV;
547 typedef struct xpvcv XPVCV;
548 typedef struct xpvbm XPVBM;
549 typedef struct xpvfm XPVFM;
550 typedef struct xpvio XPVIO;
551 typedef struct mgvtbl MGVTBL;
552 typedef union any ANY;
575 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
581 char *sprintf P((char *, ...));
583 int sprintf P((char *, ...));
587 #if defined(htonl) && !defined(HAS_HTONL)
590 #if defined(htons) && !defined(HAS_HTONS)
593 #if defined(ntohl) && !defined(HAS_NTOHL)
596 #if defined(ntohs) && !defined(HAS_NTOHS)
600 #if (BYTEORDER & 0xffff) != 0x4321
606 #define htons my_swap
607 #define htonl my_htonl
608 #define ntohs my_swap
609 #define ntohl my_ntohl
612 #if (BYTEORDER & 0xffff) == 0x4321
621 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
624 #if BYTEORDER != 0x1234
629 # if BYTEORDER == 0x4321
630 # define vtohl(x) ((((x)&0xFF)<<24) \
632 +(((x)&0x0000FF00)<<8) \
633 +(((x)&0x00FF0000)>>8) )
634 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
635 # define htovl(x) vtohl(x)
636 # define htovs(x) vtohs(x)
638 /* otherwise default to functions in util.c */
642 #define U_S(what) ((U16)(what))
643 #define U_I(what) ((unsigned int)(what))
644 #define U_L(what) ((U32)(what))
646 U32 cast_ulong P((double));
647 #define U_S(what) ((U16)cast_ulong(what))
648 #define U_I(what) ((unsigned int)cast_ulong(what))
649 #define U_L(what) (cast_ulong(what))
653 #define I_32(what) ((I32)(what))
655 I32 cast_i32 P((double));
656 #define I_32(what) (cast_i32(what))
670 #define TMPPATH "/tmp/perl-eXXXXXX"
672 #define TMPPATH "plXXXXXX"
685 #define DEBUG(a) if (debug) a
686 #define DEBUG_p(a) if (debug & 1) a
687 #define DEBUG_s(a) if (debug & 2) a
688 #define DEBUG_l(a) if (debug & 4) a
689 #define DEBUG_t(a) if (debug & 8) a
690 #define DEBUG_o(a) if (debug & 16) a
691 #define DEBUG_c(a) if (debug & 32) a
692 #define DEBUG_P(a) if (debug & 64) a
693 #define DEBUG_m(a) if (debug & 128) a
694 #define DEBUG_f(a) if (debug & 256) a
695 #define DEBUG_r(a) if (debug & 512) a
696 #define DEBUG_x(a) if (debug & 1024) a
697 #define DEBUG_u(a) if (debug & 2048) a
698 #define DEBUG_L(a) if (debug & 4096) a
699 #define DEBUG_H(a) if (debug & 8192) a
700 #define DEBUG_X(a) if (debug & 16384) a
701 #define DEBUG_D(a) if (debug & 32768) a
722 #define YYMAXDEPTH 300
724 #define assert(what) DEB( { \
726 croak("Assertion failed: file \"%s\", line %d", \
727 __FILE__, __LINE__); \
732 I32 (*uf_val)P((I32, SV*));
733 I32 (*uf_set)P((I32, SV*));
737 /* Fix these up for __STDC__ */
738 char *mktemp P((char*));
739 double atof P((const char*));
742 /* All of these are in stdlib.h or time.h for ANSI C */
744 struct tm *gmtime(), *localtime();
745 char *strchr(), *strrchr();
746 char *strcpy(), *strcat();
747 #endif /* ! STANDARD_C */
756 double exp P((double));
757 double log P((double));
758 double sqrt P((double));
759 double modf P((double,double*));
760 double sin P((double));
761 double cos P((double));
762 double atan2 P((double,double));
763 double pow P((double,double));
770 char *crypt P((const char*, const char*));
771 char *getenv P((const char*));
772 Off_t lseek P((int,Off_t,int));
773 char *getlogin P((void));
777 int unlnk P((char*));
779 #define UNLINK unlink
783 # ifdef HAS_SETRESUID
784 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
785 # define HAS_SETREUID
789 # ifdef HAS_SETRESGID
790 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
791 # define HAS_SETREGID
800 #define PAD_SV(po) pad_sv(po)
802 #define PAD_SV(po) curpad[po]
810 EXT PerlInterpreter *curinterp; /* currently running interpreter */
811 extern char ** environ; /* environment variables supplied via exec */
812 EXT int uid; /* current real user id */
813 EXT int euid; /* current effective user id */
814 EXT int gid; /* current real group id */
815 EXT int egid; /* current effective group id */
816 EXT bool nomemok; /* let malloc context handle nomem */
817 EXT U32 an; /* malloc sequence number */
818 EXT U32 cop_seqmax; /* statement sequence number */
819 EXT U32 op_seqmax; /* op sequence number */
820 EXT U32 evalseq; /* eval sequence number */
821 EXT U32 sub_generation; /* inc to force methods to be looked up again */
822 EXT char ** origenviron;
825 EXT I32 ** xiv_root; /* free xiv list--shared by interpreters */
826 EXT double * xnv_root; /* free xnv list--shared by interpreters */
827 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
828 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
830 /* Stack for currently executing thread--context switch must handle this. */
831 EXT SV ** stack_base; /* stack->array_ary */
832 EXT SV ** stack_sp; /* stack pointer now */
833 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
835 /* likewise for these */
837 EXT OP * op; /* current op--oughta be in a global register */
839 EXT I32 * scopestack; /* blocks we've entered */
840 EXT I32 scopestack_ix;
841 EXT I32 scopestack_max;
843 EXT ANY* savestack; /* to save non-local values on */
844 EXT I32 savestack_ix;
845 EXT I32 savestack_max;
847 EXT OP ** retstack; /* returns we've pushed */
849 EXT I32 retstack_max;
851 EXT I32 * markstack; /* stackmarks we're remembering */
852 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
853 EXT I32 * markstack_max; /* stackmarks we're remembering */
861 EXT char tokenbuf[256];
862 EXT struct stat statbuf;
864 EXT struct tms timesbuf;
866 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
868 /* for tmp use in stupid debuggers */
873 /* handy constants */
874 EXT char * Yes INIT("1");
875 EXT char * No INIT("");
876 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
877 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
878 EXT char * vert INIT("|");
880 EXT char warn_uninit[]
881 INIT("Use of uninitialized variable");
882 EXT char warn_nosemi[]
883 INIT("Semicolon seems to be missing");
884 EXT char warn_reserved[]
885 INIT("Unquoted string \"%s\" may clash with future reserved word");
887 INIT("Unsuccessful %s on filename containing newline");
888 EXT char no_hardref[]
889 INIT("Can't use a string as %s ref while \"strict refs\" averred");
891 INIT("Can't use an undefined value as %s reference");
893 INIT("Modification of non-creatable array value attempted, subscript %d");
895 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
897 INIT("Modification of a read-only value attempted");
899 INIT("Out of memory!\n");
900 EXT char no_security[]
901 INIT("Insecure dependency in %s%s");
902 EXT char no_sock_func[]
903 INIT("Unsupported socket function \"%s\" called");
904 EXT char no_dir_func[]
905 INIT("Unsupported directory function \"%s\" called");
907 INIT("The %s function is unimplemented");
913 EXT char * cshname INIT(CSH);
918 EXT char *sig_name[] = {
922 EXT char *sig_name[];
926 EXT unsigned char fold[] = { /* fast case folding table */
927 0, 1, 2, 3, 4, 5, 6, 7,
928 8, 9, 10, 11, 12, 13, 14, 15,
929 16, 17, 18, 19, 20, 21, 22, 23,
930 24, 25, 26, 27, 28, 29, 30, 31,
931 32, 33, 34, 35, 36, 37, 38, 39,
932 40, 41, 42, 43, 44, 45, 46, 47,
933 48, 49, 50, 51, 52, 53, 54, 55,
934 56, 57, 58, 59, 60, 61, 62, 63,
935 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
936 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
937 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
938 'x', 'y', 'z', 91, 92, 93, 94, 95,
939 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
940 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
941 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
942 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
943 128, 129, 130, 131, 132, 133, 134, 135,
944 136, 137, 138, 139, 140, 141, 142, 143,
945 144, 145, 146, 147, 148, 149, 150, 151,
946 152, 153, 154, 155, 156, 157, 158, 159,
947 160, 161, 162, 163, 164, 165, 166, 167,
948 168, 169, 170, 171, 172, 173, 174, 175,
949 176, 177, 178, 179, 180, 181, 182, 183,
950 184, 185, 186, 187, 188, 189, 190, 191,
951 192, 193, 194, 195, 196, 197, 198, 199,
952 200, 201, 202, 203, 204, 205, 206, 207,
953 208, 209, 210, 211, 212, 213, 214, 215,
954 216, 217, 218, 219, 220, 221, 222, 223,
955 224, 225, 226, 227, 228, 229, 230, 231,
956 232, 233, 234, 235, 236, 237, 238, 239,
957 240, 241, 242, 243, 244, 245, 246, 247,
958 248, 249, 250, 251, 252, 253, 254, 255
961 EXT unsigned char fold[];
965 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
966 1, 2, 84, 151, 154, 155, 156, 157,
967 165, 246, 250, 3, 158, 7, 18, 29,
968 40, 51, 62, 73, 85, 96, 107, 118,
969 129, 140, 147, 148, 149, 150, 152, 153,
970 255, 182, 224, 205, 174, 176, 180, 217,
971 233, 232, 236, 187, 235, 228, 234, 226,
972 222, 219, 211, 195, 188, 193, 185, 184,
973 191, 183, 201, 229, 181, 220, 194, 162,
974 163, 208, 186, 202, 200, 218, 198, 179,
975 178, 214, 166, 170, 207, 199, 209, 206,
976 204, 160, 212, 216, 215, 192, 175, 173,
977 243, 172, 161, 190, 203, 189, 164, 230,
978 167, 248, 227, 244, 242, 255, 241, 231,
979 240, 253, 169, 210, 245, 237, 249, 247,
980 239, 168, 252, 251, 254, 238, 223, 221,
981 213, 225, 177, 197, 171, 196, 159, 4,
982 5, 6, 8, 9, 10, 11, 12, 13,
983 14, 15, 16, 17, 19, 20, 21, 22,
984 23, 24, 25, 26, 27, 28, 30, 31,
985 32, 33, 34, 35, 36, 37, 38, 39,
986 41, 42, 43, 44, 45, 46, 47, 48,
987 49, 50, 52, 53, 54, 55, 56, 57,
988 58, 59, 60, 61, 63, 64, 65, 66,
989 67, 68, 69, 70, 71, 72, 74, 75,
990 76, 77, 78, 79, 80, 81, 82, 83,
991 86, 87, 88, 89, 90, 91, 92, 93,
992 94, 95, 97, 98, 99, 100, 101, 102,
993 103, 104, 105, 106, 108, 109, 110, 111,
994 112, 113, 114, 115, 116, 117, 119, 120,
995 121, 122, 123, 124, 125, 126, 127, 128,
996 130, 131, 132, 133, 134, 135, 136, 137,
997 138, 139, 141, 142, 143, 144, 145, 146
1000 EXT unsigned char freq[];
1005 EXT char* block_type[] = {
1014 EXT char* block_type[];
1018 /*****************************************************************************/
1019 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1020 /*****************************************************************************/
1021 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1031 EXT FILE * VOL rsfp INIT(Nullfp);
1034 EXT char * oldbufptr;
1035 EXT char * oldoldbufptr;
1037 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1039 EXT I32 multi_start; /* 1st line of multi-line string */
1040 EXT I32 multi_end; /* last line of multi-line string */
1041 EXT I32 multi_open; /* delimiter of said string */
1042 EXT I32 multi_close; /* delimiter of said string */
1045 EXT I32 error_count; /* how many errors so far, max 10 */
1046 EXT I32 subline; /* line this subroutine began on */
1047 EXT SV * subname; /* name of current subroutine */
1049 EXT AV * comppad; /* storage for lexically scoped temporaries */
1050 EXT AV * comppad_name; /* variable names for "my" variables */
1051 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1052 EXT I32 min_intro_pending;/* start of vars to introduce */
1053 EXT I32 max_intro_pending;/* end of vars to introduce */
1054 EXT I32 padix; /* max used index in current "register" pad */
1057 EXT SV * evstr; /* op_fold_const() temp string cache */
1058 EXT I32 thisexpr; /* name id for nothing_in_common() */
1059 EXT char * last_uni; /* position of last named-unary operator */
1060 EXT char * last_lop; /* position of last list operator */
1061 EXT OPCODE last_lop_op; /* last list operator */
1062 EXT bool in_my; /* we're compiling a "my" declaration */
1064 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1067 EXT U32 hints; /* various compilation flags */
1069 /* Note: the lowest 8 bits are reserved for
1070 stuffing into op->op_private */
1071 #define HINT_INTEGER 0x00000001
1072 #define HINT_STRICT_REFS 0x00000002
1074 #define HINT_BLOCK_SCOPE 0x00000100
1075 #define HINT_STRICT_SUBS 0x00000200
1076 #define HINT_STRICT_VARS 0x00000400
1078 /**************************************************************************/
1079 /* This regexp stuff is global since it always happens within 1 expr eval */
1080 /**************************************************************************/
1082 EXT char * regprecomp; /* uncompiled string. */
1083 EXT char * regparse; /* Input-scan pointer. */
1084 EXT char * regxend; /* End of input for compile */
1085 EXT I32 regnpar; /* () count. */
1086 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1087 EXT I32 regsize; /* Code size. */
1088 EXT I32 regfold; /* are we folding? */
1089 EXT I32 regsawbracket; /* Did we do {d,d} trick? */
1090 EXT I32 regsawback; /* Did we see \1, ...? */
1092 EXT char * reginput; /* String-input pointer. */
1093 EXT char regprev; /* char before regbol, \n if none */
1094 EXT char * regbol; /* Beginning of input, for ^ check. */
1095 EXT char * regeol; /* End of input, for $ check. */
1096 EXT char ** regstartp; /* Pointer to startp array. */
1097 EXT char ** regendp; /* Ditto for endp. */
1098 EXT char * reglastparen; /* Similarly for lastparen. */
1099 EXT char * regtill; /* How far we are required to go. */
1100 EXT I32 regmyp_size;
1101 EXT char ** regmystartp;
1102 EXT char ** regmyendp;
1104 /***********************************************/
1105 /* Global only to current interpreter instance */
1106 /***********************************************/
1111 struct interpreter {
1114 #define IINIT(x) INIT(x)
1117 /* pseudo environmental stuff */
1119 IEXT char ** Iorigargv;
1123 IEXT char * Iorigfilename;
1128 IEXT char Ipatchlevel[6];
1129 IEXT char * Inrs IINIT("\n");
1130 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1131 IEXT I32 Inrslen IINIT(1);
1132 IEXT char * Isplitstr IINIT(" ");
1133 IEXT bool Ipreprocess;
1139 IEXT bool Idoswitches;
1141 IEXT bool Idoextract;
1142 IEXT bool Isawampersand; /* must save all match strings */
1143 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1144 IEXT bool Isawi; /* study must assume case insensitive */
1147 IEXT bool Ido_undump; /* -u or dump seen? */
1148 IEXT char * Iinplace;
1149 IEXT char * Ie_tmpname;
1151 IEXT VOL U32 Idebug;
1154 /* magical thingies */
1155 IEXT Time_t Ibasetime; /* $^T */
1156 IEXT I32 Iarybase; /* $[ */
1157 IEXT SV * Iformfeed; /* $^L */
1158 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1159 IEXT char * Irs IINIT("\n"); /* $/ */
1160 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1161 IEXT STRLEN Irslen IINIT(1);
1163 IEXT char * Iofs; /* $, */
1164 IEXT STRLEN Iofslen;
1165 IEXT char * Iors; /* $\ */
1166 IEXT STRLEN Iorslen;
1167 IEXT char * Iofmt; /* $# */
1168 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1169 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1170 IEXT U16 Istatusvalue; /* $? */
1172 IEXT struct stat Istatcache; /* _ */
1174 IEXT SV * Istatname IINIT(Nullsv);
1176 /* shortcuts to various I/O objects */
1178 IEXT GV * Ilast_in_gv;
1181 IEXT GV * Idefoutgv;
1182 IEXT GV * Icuroutgv;
1183 IEXT GV * Iargvoutgv;
1185 /* shortcuts to regexp stuff */
1189 IEXT PMOP * Icurpm; /* what to do \ interps from */
1190 IEXT I32 * Iscreamfirst;
1191 IEXT I32 * Iscreamnext;
1192 IEXT I32 Imaxscream IINIT(-1);
1193 IEXT SV * Ilastscream;
1195 /* shortcuts to debugging objects */
1199 IEXT SV * IDBsingle;
1201 IEXT SV * IDBsignal;
1202 IEXT AV * Ilineary; /* lines of script for debugger */
1203 IEXT AV * Idbargs; /* args to call listed by caller function */
1206 IEXT HV * Idefstash; /* main symbol table */
1207 IEXT HV * Icurstash; /* symbol table for current package */
1208 IEXT HV * Idebstash; /* symbol table for perldb package */
1209 IEXT SV * Icurstname; /* name of current package */
1210 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1211 IEXT AV * Iendav; /* names of END subroutines */
1212 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1213 IEXT AV * Ipadname; /* variable names for "my" variables */
1215 /* memory management */
1216 IEXT SV ** Itmps_stack;
1217 IEXT I32 Itmps_ix IINIT(-1);
1218 IEXT I32 Itmps_floor IINIT(-1);
1220 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1221 IEXT I32 Isv_rvcount; /* how many RV* are currently allocated */
1222 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1223 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1225 /* funky return mechanisms */
1226 IEXT I32 Ilastspbase;
1228 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1230 /* subprocess state */
1231 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1232 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1234 /* internal state */
1235 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1236 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1237 IEXT int Idelaymagic; /* ($<,$>) = ... */
1238 IEXT bool Idirty; /* In the middle of tearing things down? */
1239 IEXT bool Ilocalizing; /* are we processing a local() list? */
1240 IEXT bool Itainted; /* using variables controlled by $< */
1241 IEXT bool Itainting; /* doing taint checks */
1245 IEXT I32 Idlmax IINIT(128);
1246 IEXT char * Idebname;
1247 IEXT char * Idebdelim;
1249 /* current interpreter roots */
1250 IEXT OP * Imain_root;
1251 IEXT OP * Imain_start;
1252 IEXT OP * Ieval_root;
1253 IEXT OP * Ieval_start;
1255 /* runtime control stuff */
1256 IEXT COP * VOL Icurcop IINIT(&compiling);
1257 IEXT line_t Icopline IINIT(NOLINE);
1258 IEXT CONTEXT * Icxstack;
1259 IEXT I32 Icxstack_ix IINIT(-1);
1260 IEXT I32 Icxstack_max IINIT(128);
1261 IEXT jmp_buf Itop_env;
1264 IEXT AV * Istack; /* THE STACK */
1265 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1266 IEXT SV ** Imystack_base; /* stack->array_ary */
1267 IEXT SV ** Imystack_sp; /* stack pointer now */
1268 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1270 /* format accumulators */
1271 IEXT SV * Iformtarget;
1272 IEXT SV * Ibodytarget;
1273 IEXT SV * Itoptarget;
1275 /* statics moved here for shared library purposes */
1276 IEXT SV Istrchop; /* return value from chop */
1277 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1278 IEXT int Ilastfd; /* what to preserve mode on */
1279 IEXT char * Ioldname; /* what to preserve mode on */
1280 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1281 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1282 IEXT OP * Isortcop; /* user defined sort routine */
1283 IEXT HV * Isortstash; /* which is in some package or other */
1284 IEXT GV * Ifirstgv; /* $a */
1285 IEXT GV * Isecondgv; /* $b */
1286 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1287 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1288 IEXT SV * Imystrk; /* temp key string for do_each() */
1289 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1290 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1291 IEXT I32 Igensym; /* next symbol for getsym() to define */
1292 IEXT bool Ipreambled;
1293 IEXT int Ilaststatval IINIT(-1);
1294 IEXT I32 Ilaststype IINIT(OP_STAT);
1302 struct interpreter {
1314 # include <stdarg.h>
1317 # include <varargs.h>
1327 /* The following must follow proto.h */
1330 MGVTBL vtbl_sv = {magic_get,
1334 MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1335 MGVTBL vtbl_envelem = {0, magic_setenv,
1338 MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1339 MGVTBL vtbl_sigelem = {0, magic_setsig,
1341 MGVTBL vtbl_pack = {0, 0,
1343 MGVTBL vtbl_packelem = {magic_getpack,
1347 MGVTBL vtbl_dbline = {0, magic_setdbline,
1349 MGVTBL vtbl_isa = {0, magic_setisa,
1351 MGVTBL vtbl_isaelem = {0, magic_setisa,
1353 MGVTBL vtbl_arylen = {magic_getarylen,
1356 MGVTBL vtbl_glob = {magic_getglob,
1359 MGVTBL vtbl_mglob = {0, magic_setmglob,
1361 MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1363 MGVTBL vtbl_substr = {0, magic_setsubstr,
1365 MGVTBL vtbl_vec = {0, magic_setvec,
1367 MGVTBL vtbl_bm = {0, magic_setbm,
1369 MGVTBL vtbl_uvar = {magic_getuvar,
1374 EXT MGVTBL vtbl_env;
1375 EXT MGVTBL vtbl_envelem;
1376 EXT MGVTBL vtbl_sig;
1377 EXT MGVTBL vtbl_sigelem;
1378 EXT MGVTBL vtbl_pack;
1379 EXT MGVTBL vtbl_packelem;
1380 EXT MGVTBL vtbl_dbline;
1381 EXT MGVTBL vtbl_isa;
1382 EXT MGVTBL vtbl_isaelem;
1383 EXT MGVTBL vtbl_arylen;
1384 EXT MGVTBL vtbl_glob;
1385 EXT MGVTBL vtbl_mglob;
1386 EXT MGVTBL vtbl_taint;
1387 EXT MGVTBL vtbl_substr;
1388 EXT MGVTBL vtbl_vec;
1390 EXT MGVTBL vtbl_uvar;
1393 #endif /* Include guard */