3 * Copyright (c) 1987-1994, 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.
19 # define BYTEORDER 0x1234
22 /* Overall memory policy? */
28 * The following contortions are brought to you on behalf of all the
29 * standards, semi-standards, de facto standards, not-so-de-facto standards
30 * of the world, as well as all the other botches anyone ever thought of.
31 * The basic theory is that if we work hard enough here, the rest of the
32 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
37 # define malloc Mymalloc
38 # define realloc Myremalloc
41 # define safemalloc malloc
42 # define saferealloc realloc
43 # define safefree free
46 /* work around some libPW problems */
51 /* define this once if either system, instead of cluttering up the src */
52 #if defined(MSDOS) || defined(atarist)
56 #if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
60 #if defined(HASVOLATILE) || defined(STANDARD_C)
62 # define VOL // to temporarily suppress warnings
70 #define TAINT_IF(c) (tainted |= (c))
71 #define TAINT_NOT (tainted = 0)
72 #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
73 #define TAINT_ENV() if (tainting) taint_env()
93 #include <appkit/NXCType.h>
98 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
105 # ifdef PARAM_NEEDS_TYPES
106 # include <sys/types.h>
108 # include <sys/param.h>
112 /* Use all the "standard" definitions? */
113 #if defined(STANDARD_C) && defined(I_STDLIB)
115 #endif /* STANDARD_C */
117 #define MEM_SIZE Size_t
119 #if defined(I_STRING) || defined(__cplusplus)
122 # include <strings.h>
125 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
127 #define strrchr rindex
130 #if defined(mips) && defined(ultrix) && !defined(__STDC__)
135 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
137 extern char * memcpy _((char*, char*, int));
143 # define memcpy(d,s,l) bcopy(s,d,l)
145 # define memcpy(d,s,l) my_bcopy(s,d,l)
148 #endif /* HAS_MEMCPY */
151 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
153 extern char *memset _((char*, int, int));
156 # define memzero(d,l) memset(d,0,l)
160 # define memzero(d,l) bzero(d,l)
162 # define memzero(d,l) my_bzero(d,l)
165 #endif /* HAS_MEMSET */
168 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
170 extern int memcmp _((char*, char*, int));
175 # define memcmp my_memcmp
177 #endif /* HAS_MEMCMP */
179 /* we prefer bcmp slightly for comparisons that don't care about ordering */
182 # define bcmp(s1,s2,l) memcmp(s1,s2,l)
184 #endif /* HAS_BCMP */
186 #if !defined(HAS_MEMMOVE) && !defined(memmove)
187 # if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
188 # define memmove(d,s,l) bcopy(s,d,l)
190 # if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
191 # define memmove(d,s,l) memcpy(d,s,l)
193 # define memmove(d,s,l) my_bcopy(s,d,l)
198 #ifndef _TYPES_ /* If types.h defines this it's easy. */
199 # ifndef major /* Does everyone's types.h define this? */
200 # include <sys/types.h>
205 # include <netinet/in.h>
208 #include <sys/stat.h>
210 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
211 like UTekV) are broken, sometimes giving false positives. Undefine
212 them here and let the code below set them to proper values.
214 The ghs macro stands for GreenHills Software C-1.8.5 which
215 is the C compiler for sysV88 and the various derivatives.
216 This header file bug is corrected in gcc-2.5.8 and later versions.
217 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
219 #if defined(uts) || (defined(m88k) && defined(ghs))
233 # ifdef I_SYS_TIME_KERNEL
236 # include <sys/time.h>
237 # ifdef I_SYS_TIME_KERNEL
243 # if defined(HAS_TIMES) && defined(I_SYS_TIMES)
244 # include <sys/times.h>
248 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
254 # define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
256 #endif /* !HAS_MKFIFO */
261 # include <net/errno.h>
267 extern int errno; /* ANSI allows errno to be an lvalue expr */
273 char *strerror _((int,...));
275 char *strerror _((int));
278 # define Strerror strerror
281 # ifdef HAS_SYS_ERRLIST
283 extern char *sys_errlist[];
285 # define Strerror(e) \
286 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
293 # include <sys/ioctl.h>
297 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
298 # ifdef HAS_SOCKETPAIR
299 # undef HAS_SOCKETPAIR
314 /* Configure already sets Direntry_t */
315 #if defined(I_DIRENT)
317 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
318 # include <sys/dir.h>
322 # include <sys/ndir.h>
326 # include <ndir.h> /* may be wrong in the future */
328 # include <sys/dir.h>
335 /* work around botch in SunOS 4.0.1 and 4.0.2 */
337 # define fputs(sv,fp) fprintf(fp,"%s",sv)
342 * The following gobbledygook brought to you on behalf of __STDC__.
343 * (I could just use #ifndef __STDC__, but this is more bulletproof
344 * in the face of half-implementations.)
349 # define S_IFMT _S_IFMT
351 # define S_IFMT 0170000
356 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
360 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
365 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
367 # define S_ISBLK(m) (0)
372 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
377 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
379 # define S_ISFIFO(m) (0)
385 # define S_ISLNK(m) _S_ISLNK(m)
388 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
391 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
393 # define S_ISLNK(m) (0)
401 # define S_ISSOCK(m) _S_ISSOCK(m)
404 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
407 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
409 # define S_ISSOCK(m) (0)
417 # define S_IRUSR S_IREAD
418 # define S_IWUSR S_IWRITE
419 # define S_IXUSR S_IEXEC
421 # define S_IRUSR 0400
422 # define S_IWUSR 0200
423 # define S_IXUSR 0100
425 # define S_IRGRP (S_IRUSR>>3)
426 # define S_IWGRP (S_IWUSR>>3)
427 # define S_IXGRP (S_IXUSR>>3)
428 # define S_IROTH (S_IRUSR>>6)
429 # define S_IWOTH (S_IWUSR>>6)
430 # define S_IXOTH (S_IXUSR>>6)
434 # define S_ISUID 04000
438 # define S_ISGID 02000
445 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
446 # define SLOPPYDIVIDE
449 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
457 # if defined(convex) || defined (uts)
458 # define Quad_t long long
466 # define VOIDRET void
477 # include "unixish.h"
482 #define pause() sleep((32767<<16)+32767)
487 /* on BSDish systes we're safe */
488 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
490 /* otherwise guess at what's safe */
491 # define IOCPARM_LEN(x) 256
495 typedef MEM_SIZE STRLEN;
497 typedef struct op OP;
498 typedef struct cop COP;
499 typedef struct unop UNOP;
500 typedef struct binop BINOP;
501 typedef struct listop LISTOP;
502 typedef struct logop LOGOP;
503 typedef struct condop CONDOP;
504 typedef struct pmop PMOP;
505 typedef struct svop SVOP;
506 typedef struct gvop GVOP;
507 typedef struct pvop PVOP;
508 typedef struct cvop CVOP;
509 typedef struct loop LOOP;
511 typedef struct Outrec Outrec;
512 typedef struct lstring Lstring;
513 typedef struct interpreter PerlInterpreter;
514 typedef struct ff FF;
515 typedef struct sv SV;
516 typedef struct av AV;
517 typedef struct hv HV;
518 typedef struct cv CV;
519 typedef struct regexp REGEXP;
520 typedef struct gp GP;
521 typedef struct sv GV;
522 typedef struct io IO;
523 typedef struct context CONTEXT;
524 typedef struct block BLOCK;
526 typedef struct magic MAGIC;
527 typedef struct xrv XRV;
528 typedef struct xpv XPV;
529 typedef struct xpviv XPVIV;
530 typedef struct xpvnv XPVNV;
531 typedef struct xpvmg XPVMG;
532 typedef struct xpvlv XPVLV;
533 typedef struct xpvav XPVAV;
534 typedef struct xpvhv XPVHV;
535 typedef struct xpvgv XPVGV;
536 typedef struct xpvcv XPVCV;
537 typedef struct xpvbm XPVBM;
538 typedef struct xpvfm XPVFM;
539 typedef struct xpvio XPVIO;
540 typedef struct mgvtbl MGVTBL;
541 typedef union any ANY;
543 typedef FILE * (*cryptswitch_t) _((FILE *rfp));
558 void (*any_dptr) _((void*));
575 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
579 #if defined(htonl) && !defined(HAS_HTONL)
582 #if defined(htons) && !defined(HAS_HTONS)
585 #if defined(ntohl) && !defined(HAS_NTOHL)
588 #if defined(ntohs) && !defined(HAS_NTOHS)
592 #if (BYTEORDER & 0xffff) != 0x4321
598 #define htons my_swap
599 #define htonl my_htonl
600 #define ntohs my_swap
601 #define ntohl my_ntohl
604 #if (BYTEORDER & 0xffff) == 0x4321
613 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
616 #if BYTEORDER != 0x1234
621 # if BYTEORDER == 0x4321
622 # define vtohl(x) ((((x)&0xFF)<<24) \
624 +(((x)&0x0000FF00)<<8) \
625 +(((x)&0x00FF0000)>>8) )
626 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
627 # define htovl(x) vtohl(x)
628 # define htovs(x) vtohs(x)
630 /* otherwise default to functions in util.c */
634 #define U_S(what) ((U16)(what))
635 #define U_I(what) ((unsigned int)(what))
636 #define U_L(what) ((U32)(what))
638 U32 cast_ulong _((double));
639 #define U_S(what) ((U16)cast_ulong(what))
640 #define U_I(what) ((unsigned int)cast_ulong(what))
641 #define U_L(what) (cast_ulong(what))
645 #define I_32(what) ((I32)(what))
646 #define I_V(what) ((IV)(what))
648 I32 cast_i32 _((double));
649 #define I_32(what) (cast_i32(what))
650 IV cast_iv _((double));
651 #define I_V(what) (cast_iv(what))
665 #define TMPPATH "plXXXXXX"
668 #define TMPPATH "/sys$scratch/perl-eXXXXXX"
670 #define TMPPATH "/tmp/perl-eXXXXXX"
675 Uid_t getuid _((void));
676 Uid_t geteuid _((void));
677 Gid_t getgid _((void));
678 Gid_t getegid _((void));
684 #define DEBUG(a) if (debug) a
685 #define DEBUG_p(a) if (debug & 1) a
686 #define DEBUG_s(a) if (debug & 2) a
687 #define DEBUG_l(a) if (debug & 4) a
688 #define DEBUG_t(a) if (debug & 8) a
689 #define DEBUG_o(a) if (debug & 16) a
690 #define DEBUG_c(a) if (debug & 32) a
691 #define DEBUG_P(a) if (debug & 64) a
692 #define DEBUG_m(a) if (debug & 128) a
693 #define DEBUG_f(a) if (debug & 256) a
694 #define DEBUG_r(a) if (debug & 512) a
695 #define DEBUG_x(a) if (debug & 1024) a
696 #define DEBUG_u(a) if (debug & 2048) a
697 #define DEBUG_L(a) if (debug & 4096) a
698 #define DEBUG_H(a) if (debug & 8192) a
699 #define DEBUG_X(a) if (debug & 16384) a
700 #define DEBUG_D(a) if (debug & 32768) a
721 #define YYMAXDEPTH 300
723 #define assert(what) DEB( { \
725 croak("Assertion failed: file \"%s\", line %d", \
726 __FILE__, __LINE__); \
731 I32 (*uf_val)_((IV, SV*));
732 I32 (*uf_set)_((IV, SV*));
736 /* Fix these up for __STDC__ */
738 char *mktemp _((char*));
739 double atof _((const char*));
743 /* All of these are in stdlib.h or time.h for ANSI C */
745 struct tm *gmtime(), *localtime();
746 char *strchr(), *strrchr();
747 char *strcpy(), *strcat();
748 #endif /* ! STANDARD_C */
757 double exp _((double));
758 double fmod _((double,double));
759 double log _((double));
760 double sqrt _((double));
761 double modf _((double,double*));
762 double sin _((double));
763 double cos _((double));
764 double atan2 _((double,double));
765 double pow _((double,double));
771 #if !defined(HAS_FMOD) && defined(HAS_DREM)
772 #define fmod(x,y) drem((x),(y))
775 #define fmod(x,y) my_fmod(x,y)
779 char *crypt _((const char*, const char*));
780 char *getenv _((const char*));
781 Off_t lseek _((int,Off_t,int));
782 char *getlogin _((void));
787 I32 unlnk _((char*));
789 #define UNLINK unlink
793 # ifdef HAS_SETRESUID
794 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
795 # define HAS_SETREUID
799 # ifdef HAS_SETRESGID
800 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
801 # define HAS_SETREGID
813 # define PAD_SV(po) pad_sv(po)
815 # define PAD_SV(po) curpad[po]
823 EXT PerlInterpreter * curinterp; /* currently running interpreter */
824 #ifndef VMS /* VMS doesn't use environ array */
825 extern char ** environ; /* environment variables supplied via exec */
827 EXT int uid; /* current real user id */
828 EXT int euid; /* current effective user id */
829 EXT int gid; /* current real group id */
830 EXT int egid; /* current effective group id */
831 EXT bool nomemok; /* let malloc context handle nomem */
832 EXT U32 an; /* malloc sequence number */
833 EXT U32 cop_seqmax; /* statement sequence number */
834 EXT U32 op_seqmax; /* op sequence number */
835 EXT U32 evalseq; /* eval sequence number */
836 EXT U32 sub_generation; /* inc to force methods to be looked up again */
837 EXT char ** origenviron;
839 EXT U32 * profiledata;
841 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
842 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
843 EXT double * xnv_root; /* free xnv list--shared by interpreters */
844 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
845 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
847 /* Stack for currently executing thread--context switch must handle this. */
848 EXT SV ** stack_base; /* stack->array_ary */
849 EXT SV ** stack_sp; /* stack pointer now */
850 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
852 /* likewise for these */
854 EXT OP * op; /* current op--oughta be in a global register */
856 EXT I32 * scopestack; /* blocks we've entered */
857 EXT I32 scopestack_ix;
858 EXT I32 scopestack_max;
860 EXT ANY* savestack; /* to save non-local values on */
861 EXT I32 savestack_ix;
862 EXT I32 savestack_max;
864 EXT OP ** retstack; /* returns we've pushed */
866 EXT I32 retstack_max;
868 EXT I32 * markstack; /* stackmarks we're remembering */
869 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
870 EXT I32 * markstack_max; /* stackmarks we're remembering */
878 EXT char tokenbuf[256];
879 EXT struct stat statbuf;
881 EXT struct tms timesbuf;
883 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
885 /* for tmp use in stupid debuggers */
890 /* handy constants */
891 EXT char * Yes INIT("1");
892 EXT char * No INIT("");
893 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
894 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
895 EXT char * vert INIT("|");
897 EXT char warn_uninit[]
898 INIT("Use of uninitialized value");
899 EXT char warn_nosemi[]
900 INIT("Semicolon seems to be missing");
901 EXT char warn_reserved[]
902 INIT("Unquoted string \"%s\" may clash with future reserved word");
904 INIT("Unsuccessful %s on filename containing newline");
905 EXT char no_wrongref[]
906 INIT("Can't use %s ref as %s ref");
908 INIT("Can't use a string as %s ref while \"strict refs\" in use");
910 INIT("Can't use an undefined value as %s reference");
912 INIT("Modification of non-creatable array value attempted, subscript %d");
914 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
916 INIT("Modification of a read-only value attempted");
918 INIT("Out of memory!\n");
919 EXT char no_security[]
920 INIT("Insecure dependency in %s%s");
921 EXT char no_sock_func[]
922 INIT("Unsupported socket function \"%s\" called");
923 EXT char no_dir_func[]
924 INIT("Unsupported directory function \"%s\" called");
926 INIT("The %s function is unimplemented");
932 EXT char * cshname INIT(CSH);
937 EXT char *sig_name[] = {
941 EXT char *sig_name[];
945 EXT unsigned char fold[] = { /* fast case folding table */
946 0, 1, 2, 3, 4, 5, 6, 7,
947 8, 9, 10, 11, 12, 13, 14, 15,
948 16, 17, 18, 19, 20, 21, 22, 23,
949 24, 25, 26, 27, 28, 29, 30, 31,
950 32, 33, 34, 35, 36, 37, 38, 39,
951 40, 41, 42, 43, 44, 45, 46, 47,
952 48, 49, 50, 51, 52, 53, 54, 55,
953 56, 57, 58, 59, 60, 61, 62, 63,
954 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
955 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
956 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
957 'x', 'y', 'z', 91, 92, 93, 94, 95,
958 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
959 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
960 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
961 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
962 128, 129, 130, 131, 132, 133, 134, 135,
963 136, 137, 138, 139, 140, 141, 142, 143,
964 144, 145, 146, 147, 148, 149, 150, 151,
965 152, 153, 154, 155, 156, 157, 158, 159,
966 160, 161, 162, 163, 164, 165, 166, 167,
967 168, 169, 170, 171, 172, 173, 174, 175,
968 176, 177, 178, 179, 180, 181, 182, 183,
969 184, 185, 186, 187, 188, 189, 190, 191,
970 192, 193, 194, 195, 196, 197, 198, 199,
971 200, 201, 202, 203, 204, 205, 206, 207,
972 208, 209, 210, 211, 212, 213, 214, 215,
973 216, 217, 218, 219, 220, 221, 222, 223,
974 224, 225, 226, 227, 228, 229, 230, 231,
975 232, 233, 234, 235, 236, 237, 238, 239,
976 240, 241, 242, 243, 244, 245, 246, 247,
977 248, 249, 250, 251, 252, 253, 254, 255
980 EXT unsigned char fold[];
984 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
985 1, 2, 84, 151, 154, 155, 156, 157,
986 165, 246, 250, 3, 158, 7, 18, 29,
987 40, 51, 62, 73, 85, 96, 107, 118,
988 129, 140, 147, 148, 149, 150, 152, 153,
989 255, 182, 224, 205, 174, 176, 180, 217,
990 233, 232, 236, 187, 235, 228, 234, 226,
991 222, 219, 211, 195, 188, 193, 185, 184,
992 191, 183, 201, 229, 181, 220, 194, 162,
993 163, 208, 186, 202, 200, 218, 198, 179,
994 178, 214, 166, 170, 207, 199, 209, 206,
995 204, 160, 212, 216, 215, 192, 175, 173,
996 243, 172, 161, 190, 203, 189, 164, 230,
997 167, 248, 227, 244, 242, 255, 241, 231,
998 240, 253, 169, 210, 245, 237, 249, 247,
999 239, 168, 252, 251, 254, 238, 223, 221,
1000 213, 225, 177, 197, 171, 196, 159, 4,
1001 5, 6, 8, 9, 10, 11, 12, 13,
1002 14, 15, 16, 17, 19, 20, 21, 22,
1003 23, 24, 25, 26, 27, 28, 30, 31,
1004 32, 33, 34, 35, 36, 37, 38, 39,
1005 41, 42, 43, 44, 45, 46, 47, 48,
1006 49, 50, 52, 53, 54, 55, 56, 57,
1007 58, 59, 60, 61, 63, 64, 65, 66,
1008 67, 68, 69, 70, 71, 72, 74, 75,
1009 76, 77, 78, 79, 80, 81, 82, 83,
1010 86, 87, 88, 89, 90, 91, 92, 93,
1011 94, 95, 97, 98, 99, 100, 101, 102,
1012 103, 104, 105, 106, 108, 109, 110, 111,
1013 112, 113, 114, 115, 116, 117, 119, 120,
1014 121, 122, 123, 124, 125, 126, 127, 128,
1015 130, 131, 132, 133, 134, 135, 136, 137,
1016 138, 139, 141, 142, 143, 144, 145, 146
1019 EXT unsigned char freq[];
1024 EXT char* block_type[] = {
1033 EXT char* block_type[];
1037 /*****************************************************************************/
1038 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1039 /*****************************************************************************/
1040 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1053 EXT U32 lex_state; /* next token is determined */
1054 EXT U32 lex_defer; /* state after determined token */
1055 EXT expectation lex_expect; /* expect after determined token */
1056 EXT I32 lex_brackets; /* bracket count */
1057 EXT I32 lex_formbrack; /* bracket count at outer format level */
1058 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1059 EXT I32 lex_casemods; /* casemod count */
1060 EXT I32 lex_dojoin; /* doing an array interpolation */
1061 EXT I32 lex_starts; /* how many interps done on level */
1062 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1063 EXT SV * lex_repl; /* runtime replacement from s/// */
1064 EXT OP * lex_op; /* extra info to pass back on op */
1065 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1066 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1067 EXT char * lex_brackstack; /* what kind of brackets to pop */
1068 EXT char * lex_casestack; /* what kind of case mods in effect */
1070 /* What we know when we're in LEX_KNOWNEXT state. */
1071 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1072 EXT I32 nexttype[5]; /* type of next token */
1075 EXT FILE * VOL rsfp INIT(Nullfp);
1078 EXT char * oldbufptr;
1079 EXT char * oldoldbufptr;
1081 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1082 EXT char * autoboot_preamble INIT(Nullch);
1084 EXT I32 multi_start; /* 1st line of multi-line string */
1085 EXT I32 multi_end; /* last line of multi-line string */
1086 EXT I32 multi_open; /* delimiter of said string */
1087 EXT I32 multi_close; /* delimiter of said string */
1090 EXT I32 error_count; /* how many errors so far, max 10 */
1091 EXT I32 subline; /* line this subroutine began on */
1092 EXT SV * subname; /* name of current subroutine */
1094 EXT AV * comppad; /* storage for lexically scoped temporaries */
1095 EXT AV * comppad_name; /* variable names for "my" variables */
1096 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1097 EXT I32 min_intro_pending;/* start of vars to introduce */
1098 EXT I32 max_intro_pending;/* end of vars to introduce */
1099 EXT I32 padix; /* max used index in current "register" pad */
1100 EXT I32 padix_floor; /* how low may inner block reset padix */
1101 EXT bool pad_reset_pending; /* reset pad on next attempted alloc */
1104 EXT I32 thisexpr; /* name id for nothing_in_common() */
1105 EXT char * last_uni; /* position of last named-unary operator */
1106 EXT char * last_lop; /* position of last list operator */
1107 EXT OPCODE last_lop_op; /* last list operator */
1108 EXT bool in_my; /* we're compiling a "my" declaration */
1110 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1113 EXT U32 hints; /* various compilation flags */
1115 /* Note: the lowest 8 bits are reserved for
1116 stuffing into op->op_private */
1117 #define HINT_INTEGER 0x00000001
1118 #define HINT_STRICT_REFS 0x00000002
1120 #define HINT_BLOCK_SCOPE 0x00000100
1121 #define HINT_STRICT_SUBS 0x00000200
1122 #define HINT_STRICT_VARS 0x00000400
1124 /**************************************************************************/
1125 /* This regexp stuff is global since it always happens within 1 expr eval */
1126 /**************************************************************************/
1128 EXT char * regprecomp; /* uncompiled string. */
1129 EXT char * regparse; /* Input-scan pointer. */
1130 EXT char * regxend; /* End of input for compile */
1131 EXT I32 regnpar; /* () count. */
1132 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1133 EXT I32 regsize; /* Code size. */
1134 EXT I32 regnaughty; /* How bad is this pattern? */
1135 EXT I32 regsawback; /* Did we see \1, ...? */
1137 EXT char * reginput; /* String-input pointer. */
1138 EXT char * regbol; /* Beginning of input, for ^ check. */
1139 EXT char * regeol; /* End of input, for $ check. */
1140 EXT char ** regstartp; /* Pointer to startp array. */
1141 EXT char ** regendp; /* Ditto for endp. */
1142 EXT U32 * reglastparen; /* Similarly for lastparen. */
1143 EXT char * regtill; /* How far we are required to go. */
1144 EXT U16 regflags; /* are we folding, multilining? */
1145 EXT char regprev; /* char before regbol, \n if none */
1147 /***********************************************/
1148 /* Global only to current interpreter instance */
1149 /***********************************************/
1154 struct interpreter {
1157 #define IINIT(x) INIT(x)
1160 /* pseudo environmental stuff */
1162 IEXT char ** Iorigargv;
1166 IEXT char * Iorigfilename;
1171 IEXT char Ipatchlevel[6];
1172 IEXT char * Inrs IINIT("\n");
1173 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1174 IEXT I32 Inrslen IINIT(1);
1175 IEXT char * Isplitstr IINIT(" ");
1176 IEXT bool Ipreprocess;
1182 IEXT bool Idoswitches;
1184 IEXT bool Idoextract;
1185 IEXT bool Isawampersand; /* must save all match strings */
1186 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1187 IEXT bool Isawi; /* study must assume case insensitive */
1190 IEXT bool Ido_undump; /* -u or dump seen? */
1191 IEXT char * Iinplace;
1192 IEXT char * Ie_tmpname;
1194 IEXT VOL U32 Idebug;
1197 /* magical thingies */
1198 IEXT Time_t Ibasetime; /* $^T */
1199 IEXT SV * Iformfeed; /* $^L */
1200 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1201 IEXT char * Irs IINIT("\n"); /* $/ */
1202 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1203 IEXT STRLEN Irslen IINIT(1);
1205 IEXT char * Iofs; /* $, */
1206 IEXT STRLEN Iofslen;
1207 IEXT char * Iors; /* $\ */
1208 IEXT STRLEN Iorslen;
1209 IEXT char * Iofmt; /* $# */
1210 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1211 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1212 IEXT U16 Istatusvalue; /* $? */
1214 IEXT struct stat Istatcache; /* _ */
1216 IEXT SV * Istatname IINIT(Nullsv);
1218 /* shortcuts to various I/O objects */
1220 IEXT GV * Ilast_in_gv;
1223 IEXT GV * Idefoutgv;
1224 IEXT GV * Iargvoutgv;
1226 /* shortcuts to regexp stuff */
1230 IEXT PMOP * Icurpm; /* what to do \ interps from */
1231 IEXT I32 * Iscreamfirst;
1232 IEXT I32 * Iscreamnext;
1233 IEXT I32 Imaxscream IINIT(-1);
1234 IEXT SV * Ilastscream;
1236 /* shortcuts to debugging objects */
1240 IEXT SV * IDBsingle;
1242 IEXT SV * IDBsignal;
1243 IEXT AV * Ilineary; /* lines of script for debugger */
1244 IEXT AV * Idbargs; /* args to call listed by caller function */
1247 IEXT HV * Idefstash; /* main symbol table */
1248 IEXT HV * Icurstash; /* symbol table for current package */
1249 IEXT HV * Idebstash; /* symbol table for perldb package */
1250 IEXT SV * Icurstname; /* name of current package */
1251 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1252 IEXT AV * Iendav; /* names of END subroutines */
1253 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1254 IEXT AV * Ipadname; /* variable names for "my" variables */
1256 /* memory management */
1257 IEXT SV ** Itmps_stack;
1258 IEXT I32 Itmps_ix IINIT(-1);
1259 IEXT I32 Itmps_floor IINIT(-1);
1261 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1262 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1263 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1264 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1266 /* funky return mechanisms */
1267 IEXT I32 Ilastspbase;
1269 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1271 /* subprocess state */
1272 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1273 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1275 /* internal state */
1276 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1277 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1278 IEXT int Idelaymagic; /* ($<,$>) = ... */
1279 IEXT bool Idirty; /* In the middle of tearing things down? */
1280 IEXT bool Ilocalizing; /* are we processing a local() list? */
1281 IEXT bool Itainted; /* using variables controlled by $< */
1282 IEXT bool Itainting; /* doing taint checks */
1286 IEXT I32 Idlmax IINIT(128);
1287 IEXT char * Idebname;
1288 IEXT char * Idebdelim;
1290 /* current interpreter roots */
1291 IEXT OP * Imain_root;
1292 IEXT OP * Imain_start;
1293 IEXT OP * Ieval_root;
1294 IEXT OP * Ieval_start;
1296 /* runtime control stuff */
1297 IEXT COP * VOL Icurcop IINIT(&compiling);
1298 IEXT line_t Icopline IINIT(NOLINE);
1299 IEXT CONTEXT * Icxstack;
1300 IEXT I32 Icxstack_ix IINIT(-1);
1301 IEXT I32 Icxstack_max IINIT(128);
1302 IEXT jmp_buf Itop_env;
1306 IEXT AV * Istack; /* THE STACK */
1307 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1308 IEXT SV ** Imystack_base; /* stack->array_ary */
1309 IEXT SV ** Imystack_sp; /* stack pointer now */
1310 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1312 /* format accumulators */
1313 IEXT SV * Iformtarget;
1314 IEXT SV * Ibodytarget;
1315 IEXT SV * Itoptarget;
1317 /* statics moved here for shared library purposes */
1318 IEXT SV Istrchop; /* return value from chop */
1319 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1320 IEXT int Ilastfd; /* what to preserve mode on */
1321 IEXT char * Ioldname; /* what to preserve mode on */
1322 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1323 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1324 IEXT OP * Isortcop; /* user defined sort routine */
1325 IEXT HV * Isortstash; /* which is in some package or other */
1326 IEXT GV * Ifirstgv; /* $a */
1327 IEXT GV * Isecondgv; /* $b */
1328 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1329 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1330 IEXT SV * Imystrk; /* temp key string for do_each() */
1331 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1332 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1333 IEXT I32 Igensym; /* next symbol for getsym() to define */
1334 IEXT bool Ipreambled;
1335 IEXT int Ilaststatval IINIT(-1);
1336 IEXT I32 Ilaststype IINIT(OP_STAT);
1344 struct interpreter {
1362 # include <stdarg.h>
1365 # include <varargs.h>
1372 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1373 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1375 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1376 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1383 /* The following must follow proto.h */
1386 MGVTBL vtbl_sv = {magic_get,
1390 MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1391 MGVTBL vtbl_envelem = {0, magic_setenv,
1394 MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1395 MGVTBL vtbl_sigelem = {0, magic_setsig,
1397 MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1399 MGVTBL vtbl_packelem = {magic_getpack,
1403 MGVTBL vtbl_dbline = {0, magic_setdbline,
1405 MGVTBL vtbl_isa = {0, magic_setisa,
1407 MGVTBL vtbl_isaelem = {0, magic_setisa,
1409 MGVTBL vtbl_arylen = {magic_getarylen,
1412 MGVTBL vtbl_glob = {magic_getglob,
1415 MGVTBL vtbl_mglob = {0, magic_setmglob,
1417 MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1419 MGVTBL vtbl_substr = {0, magic_setsubstr,
1421 MGVTBL vtbl_vec = {0, magic_setvec,
1423 MGVTBL vtbl_pos = {magic_getpos,
1426 MGVTBL vtbl_bm = {0, magic_setbm,
1428 MGVTBL vtbl_uvar = {magic_getuvar,
1433 MGVTBL vtbl_amagic = {0, magic_setamagic,
1435 MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1437 #endif /* OVERLOAD */
1441 EXT MGVTBL vtbl_env;
1442 EXT MGVTBL vtbl_envelem;
1443 EXT MGVTBL vtbl_sig;
1444 EXT MGVTBL vtbl_sigelem;
1445 EXT MGVTBL vtbl_pack;
1446 EXT MGVTBL vtbl_packelem;
1447 EXT MGVTBL vtbl_dbline;
1448 EXT MGVTBL vtbl_isa;
1449 EXT MGVTBL vtbl_isaelem;
1450 EXT MGVTBL vtbl_arylen;
1451 EXT MGVTBL vtbl_glob;
1452 EXT MGVTBL vtbl_mglob;
1453 EXT MGVTBL vtbl_taint;
1454 EXT MGVTBL vtbl_substr;
1455 EXT MGVTBL vtbl_vec;
1456 EXT MGVTBL vtbl_pos;
1458 EXT MGVTBL vtbl_uvar;
1461 EXT MGVTBL vtbl_amagic;
1462 EXT MGVTBL vtbl_amagicelem;
1463 #endif /* OVERLOAD */
1468 EXT long amagic_generation;
1470 #define NofAMmeth 27
1472 EXT char * AMG_names[NofAMmeth][2] = {
1474 {"bool", "nomethod"},
1502 EXT char * AMG_names[NofAMmeth][2];
1503 #endif /* def INITAMAGIC */
1508 CV* table[NofAMmeth*2];
1511 typedef struct am_table AMT;
1513 #define AMGfallNEVER 1
1515 #define AMGfallYES 3
1518 fallback_amg, abs_amg,
1519 bool__amg, nomethod_amg,
1520 string_amg, numer_amg,
1521 add_amg, add_ass_amg,
1522 subtr_amg, subtr_ass_amg,
1523 mult_amg, mult_ass_amg,
1524 div_amg, div_ass_amg,
1525 mod_amg, mod_ass_amg,
1526 pow_amg, pow_ass_amg,
1527 lshift_amg, lshift_ass_amg,
1528 rshift_amg, rshift_ass_amg,
1543 repeat_amg, repeat_ass_amg,
1544 concat_amg, concat_ass_amg
1546 #endif /* OVERLOAD */
1548 #endif /* Include guard */