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()
89 #include <appkit/NXCType.h>
94 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
101 # ifdef PARAM_NEEDS_TYPES
102 # include <sys/types.h>
104 # include <sys/param.h>
108 /* Use all the "standard" definitions? */
109 #if defined(STANDARD_C) && defined(I_STDLIB)
111 #endif /* STANDARD_C */
113 #define MEM_SIZE Size_t
115 #if defined(I_STRING) || defined(__cplusplus)
118 # include <strings.h>
121 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
123 #define strrchr rindex
126 #if defined(mips) && defined(ultrix) && !defined(__STDC__)
131 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
133 extern char * memcpy _((char*, char*, int));
139 # define memcpy(d,s,l) bcopy(s,d,l)
141 # define memcpy(d,s,l) my_bcopy(s,d,l)
144 #endif /* HAS_MEMCPY */
147 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
149 extern char *memset _((char*, int, int));
152 # define memzero(d,l) memset(d,0,l)
156 # define memzero(d,l) bzero(d,l)
158 # define memzero(d,l) my_bzero(d,l)
161 #endif /* HAS_MEMSET */
164 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
166 extern int memcmp _((char*, char*, int));
171 # define memcmp my_memcmp
173 #endif /* HAS_MEMCMP */
175 /* we prefer bcmp slightly for comparisons that don't care about ordering */
178 # define bcmp(s1,s2,l) memcmp(s1,s2,l)
180 #endif /* HAS_BCMP */
182 #if !defined(HAS_MEMMOVE) && !defined(memmove)
183 # if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
184 # define memmove(d,s,l) bcopy(s,d,l)
186 # if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
187 # define memmove(d,s,l) memcpy(d,s,l)
189 # define memmove(d,s,l) my_bcopy(s,d,l)
194 #ifndef _TYPES_ /* If types.h defines this it's easy. */
195 # ifndef major /* Does everyone's types.h define this? */
196 # include <sys/types.h>
201 # include <netinet/in.h>
205 #include <sys/stat.h>
208 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
209 like UTekV) are broken, sometimes giving false positives. Undefine
210 them here and let the code below set them to proper values.
212 The ghs macro stands for GreenHills Software C-1.8.5 which
213 is the C compiler for sysV88 and the various derivatives.
214 This header file bug is corrected in gcc-2.5.8 and later versions.
215 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
217 #if defined(uts) || (defined(m88k) && defined(ghs))
231 # ifdef I_SYS_TIME_KERNEL
234 # include <sys/time.h>
235 # ifdef I_SYS_TIME_KERNEL
241 # if defined(HAS_TIMES) && defined(I_SYS_TIMES)
242 # include <sys/times.h>
246 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
252 # define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
254 #endif /* !HAS_MKFIFO */
259 # include <net/errno.h>
263 # define FIXSTATUS(sts) (U_L((sts) & 0xffff))
264 # define SHIFTSTATUS(sts) ((sts) >> 8)
265 # define SETERRNO(errcode,vmserrcode) errno = (errcode)
267 # define FIXSTATUS(sts) (U_L(sts))
268 # define SHIFTSTATUS(sts) (sts)
269 # define SETERRNO(errcode,vmserrcode) {set_errno(errcode); set_vaxc_errno(vmserrcode);}
274 extern int errno; /* ANSI allows errno to be an lvalue expr */
280 char *strerror _((int,...));
282 char *strerror _((int));
285 # define Strerror strerror
288 # ifdef HAS_SYS_ERRLIST
290 extern char *sys_errlist[];
292 # define Strerror(e) \
293 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
300 # include <sys/ioctl.h>
304 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
305 # ifdef HAS_SOCKETPAIR
306 # undef HAS_SOCKETPAIR
321 /* Configure already sets Direntry_t */
322 #if defined(I_DIRENT)
324 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
325 # include <sys/dir.h>
329 # include <sys/ndir.h>
333 # include <ndir.h> /* may be wrong in the future */
335 # include <sys/dir.h>
342 /* work around botch in SunOS 4.0.1 and 4.0.2 */
344 # define fputs(sv,fp) fprintf(fp,"%s",sv)
349 * The following gobbledygook brought to you on behalf of __STDC__.
350 * (I could just use #ifndef __STDC__, but this is more bulletproof
351 * in the face of half-implementations.)
356 # define S_IFMT _S_IFMT
358 # define S_IFMT 0170000
363 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
367 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
372 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
374 # define S_ISBLK(m) (0)
379 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
384 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
386 # define S_ISFIFO(m) (0)
392 # define S_ISLNK(m) _S_ISLNK(m)
395 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
398 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
400 # define S_ISLNK(m) (0)
408 # define S_ISSOCK(m) _S_ISSOCK(m)
411 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
414 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
416 # define S_ISSOCK(m) (0)
424 # define S_IRUSR S_IREAD
425 # define S_IWUSR S_IWRITE
426 # define S_IXUSR S_IEXEC
428 # define S_IRUSR 0400
429 # define S_IWUSR 0200
430 # define S_IXUSR 0100
432 # define S_IRGRP (S_IRUSR>>3)
433 # define S_IWGRP (S_IWUSR>>3)
434 # define S_IXGRP (S_IXUSR>>3)
435 # define S_IROTH (S_IRUSR>>6)
436 # define S_IWOTH (S_IWUSR>>6)
437 # define S_IXOTH (S_IXUSR>>6)
441 # define S_ISUID 04000
445 # define S_ISGID 02000
452 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
453 # define SLOPPYDIVIDE
456 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
468 # if defined(convex) || defined (uts)
469 # define Quad_t long long
475 typedef unsigned Quad_t UV;
478 typedef unsigned long UV;
481 typedef MEM_SIZE STRLEN;
483 typedef struct op OP;
484 typedef struct cop COP;
485 typedef struct unop UNOP;
486 typedef struct binop BINOP;
487 typedef struct listop LISTOP;
488 typedef struct logop LOGOP;
489 typedef struct condop CONDOP;
490 typedef struct pmop PMOP;
491 typedef struct svop SVOP;
492 typedef struct gvop GVOP;
493 typedef struct pvop PVOP;
494 typedef struct cvop CVOP;
495 typedef struct loop LOOP;
497 typedef struct Outrec Outrec;
498 typedef struct interpreter PerlInterpreter;
499 typedef struct ff FF;
500 typedef struct sv SV;
501 typedef struct av AV;
502 typedef struct hv HV;
503 typedef struct cv CV;
504 typedef struct regexp REGEXP;
505 typedef struct gp GP;
506 typedef struct sv GV;
507 typedef struct io IO;
508 typedef struct context CONTEXT;
509 typedef struct block BLOCK;
511 typedef struct magic MAGIC;
512 typedef struct xrv XRV;
513 typedef struct xpv XPV;
514 typedef struct xpviv XPVIV;
515 typedef struct xpvnv XPVNV;
516 typedef struct xpvmg XPVMG;
517 typedef struct xpvlv XPVLV;
518 typedef struct xpvav XPVAV;
519 typedef struct xpvhv XPVHV;
520 typedef struct xpvgv XPVGV;
521 typedef struct xpvcv XPVCV;
522 typedef struct xpvbm XPVBM;
523 typedef struct xpvfm XPVFM;
524 typedef struct xpvio XPVIO;
525 typedef struct mgvtbl MGVTBL;
526 typedef union any ANY;
528 typedef int (*cryptswitch_t) _((void));
538 # include "unixish.h"
543 #define pause() sleep((32767<<16)+32767)
548 /* on BSDish systes we're safe */
549 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
551 /* otherwise guess at what's safe */
552 # define IOCPARM_LEN(x) 256
561 void (*any_dptr) _((void*));
578 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
582 #if defined(htonl) && !defined(HAS_HTONL)
585 #if defined(htons) && !defined(HAS_HTONS)
588 #if defined(ntohl) && !defined(HAS_NTOHL)
591 #if defined(ntohs) && !defined(HAS_NTOHS)
595 #if (BYTEORDER & 0xffff) != 0x4321
601 #define htons my_swap
602 #define htonl my_htonl
603 #define ntohs my_swap
604 #define ntohl my_ntohl
607 #if (BYTEORDER & 0xffff) == 0x4321
616 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
619 #if BYTEORDER != 0x1234
624 # if BYTEORDER == 0x4321
625 # define vtohl(x) ((((x)&0xFF)<<24) \
627 +(((x)&0x0000FF00)<<8) \
628 +(((x)&0x00FF0000)>>8) )
629 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
630 # define htovl(x) vtohl(x)
631 # define htovs(x) vtohs(x)
633 /* otherwise default to functions in util.c */
637 #define U_S(what) ((U16)(what))
638 #define U_I(what) ((unsigned int)(what))
639 #define U_L(what) ((U32)(what))
641 U32 cast_ulong _((double));
642 #define U_S(what) ((U16)cast_ulong((double)(what)))
643 #define U_I(what) ((unsigned int)cast_ulong((double)(what)))
644 #define U_L(what) (cast_ulong((double)(what)))
648 #define I_32(what) ((I32)(what))
649 #define I_V(what) ((IV)(what))
651 I32 cast_i32 _((double));
652 #define I_32(what) (cast_i32((double)(what)))
653 IV cast_iv _((double));
654 #define I_V(what) (cast_iv((double)(what)))
668 #define TMPPATH "plXXXXXX"
671 #define TMPPATH "sys$scratch:perl-eXXXXXX"
673 #define TMPPATH "/tmp/perl-eXXXXXX"
678 Uid_t getuid _((void));
679 Uid_t geteuid _((void));
680 Gid_t getgid _((void));
681 Gid_t getegid _((void));
687 #define DEBUG(a) if (debug) a
688 #define DEBUG_p(a) if (debug & 1) a
689 #define DEBUG_s(a) if (debug & 2) a
690 #define DEBUG_l(a) if (debug & 4) a
691 #define DEBUG_t(a) if (debug & 8) a
692 #define DEBUG_o(a) if (debug & 16) a
693 #define DEBUG_c(a) if (debug & 32) a
694 #define DEBUG_P(a) if (debug & 64) a
695 #define DEBUG_m(a) if (debug & 128) a
696 #define DEBUG_f(a) if (debug & 256) a
697 #define DEBUG_r(a) if (debug & 512) a
698 #define DEBUG_x(a) if (debug & 1024) a
699 #define DEBUG_u(a) if (debug & 2048) a
700 #define DEBUG_L(a) if (debug & 4096) a
701 #define DEBUG_H(a) if (debug & 8192) a
702 #define DEBUG_X(a) if (debug & 16384) a
703 #define DEBUG_D(a) if (debug & 32768) a
724 #define YYMAXDEPTH 300
726 #define assert(what) DEB( { \
728 croak("Assertion failed: file \"%s\", line %d", \
729 __FILE__, __LINE__); \
734 I32 (*uf_val)_((IV, SV*));
735 I32 (*uf_set)_((IV, SV*));
739 /* Fix these up for __STDC__ */
741 char *mktemp _((char*));
742 double atof _((const char*));
746 /* All of these are in stdlib.h or time.h for ANSI C */
748 struct tm *gmtime(), *localtime();
749 char *strchr(), *strrchr();
750 char *strcpy(), *strcat();
751 #endif /* ! STANDARD_C */
760 double exp _((double));
761 double log _((double));
762 double sqrt _((double));
763 double modf _((double,double*));
764 double sin _((double));
765 double cos _((double));
766 double atan2 _((double,double));
767 double pow _((double,double));
774 char *crypt _((const char*, const char*));
775 char *getenv _((const char*));
776 Off_t lseek _((int,Off_t,int));
777 char *getlogin _((void));
782 I32 unlnk _((char*));
784 #define UNLINK unlink
788 # ifdef HAS_SETRESUID
789 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
790 # define HAS_SETREUID
794 # ifdef HAS_SETRESGID
795 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
796 # define HAS_SETREGID
808 # define PAD_SV(po) pad_sv(po)
810 # define PAD_SV(po) curpad[po]
818 EXT PerlInterpreter * curinterp; /* currently running interpreter */
819 #ifndef VMS /* VMS doesn't use environ array */
820 extern char ** environ; /* environment variables supplied via exec */
822 EXT int uid; /* current real user id */
823 EXT int euid; /* current effective user id */
824 EXT int gid; /* current real group id */
825 EXT int egid; /* current effective group id */
826 EXT bool nomemok; /* let malloc context handle nomem */
827 EXT U32 an; /* malloc sequence number */
828 EXT U32 cop_seqmax; /* statement sequence number */
829 EXT U32 op_seqmax; /* op sequence number */
830 EXT U32 evalseq; /* eval sequence number */
831 EXT U32 sub_generation; /* inc to force methods to be looked up again */
832 EXT char ** origenviron;
834 EXT U32 * profiledata;
836 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
837 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
838 EXT double * xnv_root; /* free xnv list--shared by interpreters */
839 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
840 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
842 /* Stack for currently executing thread--context switch must handle this. */
843 EXT SV ** stack_base; /* stack->array_ary */
844 EXT SV ** stack_sp; /* stack pointer now */
845 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
847 /* likewise for these */
849 EXT OP * op; /* current op--oughta be in a global register */
851 EXT I32 * scopestack; /* blocks we've entered */
852 EXT I32 scopestack_ix;
853 EXT I32 scopestack_max;
855 EXT ANY* savestack; /* to save non-local values on */
856 EXT I32 savestack_ix;
857 EXT I32 savestack_max;
859 EXT OP ** retstack; /* returns we've pushed */
861 EXT I32 retstack_max;
863 EXT I32 * markstack; /* stackmarks we're remembering */
864 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
865 EXT I32 * markstack_max; /* stackmarks we're remembering */
873 EXT char tokenbuf[256];
874 EXT struct stat statbuf;
876 EXT struct tms timesbuf;
878 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
880 /* for tmp use in stupid debuggers */
885 /* handy constants */
886 EXT char * Yes INIT("1");
887 EXT char * No INIT("");
888 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
889 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
890 EXT char * vert INIT("|");
892 EXT char warn_uninit[]
893 INIT("Use of uninitialized value");
894 EXT char warn_nosemi[]
895 INIT("Semicolon seems to be missing");
896 EXT char warn_reserved[]
897 INIT("Unquoted string \"%s\" may clash with future reserved word");
899 INIT("Unsuccessful %s on filename containing newline");
900 EXT char no_wrongref[]
901 INIT("Can't use %s ref as %s ref");
903 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
905 INIT("Can't use an undefined value as %s reference");
907 INIT("Modification of non-creatable array value attempted, subscript %d");
909 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
911 INIT("Modification of a read-only value attempted");
913 INIT("Out of memory!\n");
914 EXT char no_security[]
915 INIT("Insecure dependency in %s%s");
916 EXT char no_sock_func[]
917 INIT("Unsupported socket function \"%s\" called");
918 EXT char no_dir_func[]
919 INIT("Unsupported directory function \"%s\" called");
921 INIT("The %s function is unimplemented");
923 INIT("\"my\" variable %s can't be in a package");
929 EXT char * cshname INIT(CSH);
934 EXT char *sig_name[] = {
938 EXT char *sig_name[];
942 EXT unsigned char fold[] = { /* fast case folding table */
943 0, 1, 2, 3, 4, 5, 6, 7,
944 8, 9, 10, 11, 12, 13, 14, 15,
945 16, 17, 18, 19, 20, 21, 22, 23,
946 24, 25, 26, 27, 28, 29, 30, 31,
947 32, 33, 34, 35, 36, 37, 38, 39,
948 40, 41, 42, 43, 44, 45, 46, 47,
949 48, 49, 50, 51, 52, 53, 54, 55,
950 56, 57, 58, 59, 60, 61, 62, 63,
951 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
952 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
953 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
954 'x', 'y', 'z', 91, 92, 93, 94, 95,
955 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
956 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
957 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
958 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
959 128, 129, 130, 131, 132, 133, 134, 135,
960 136, 137, 138, 139, 140, 141, 142, 143,
961 144, 145, 146, 147, 148, 149, 150, 151,
962 152, 153, 154, 155, 156, 157, 158, 159,
963 160, 161, 162, 163, 164, 165, 166, 167,
964 168, 169, 170, 171, 172, 173, 174, 175,
965 176, 177, 178, 179, 180, 181, 182, 183,
966 184, 185, 186, 187, 188, 189, 190, 191,
967 192, 193, 194, 195, 196, 197, 198, 199,
968 200, 201, 202, 203, 204, 205, 206, 207,
969 208, 209, 210, 211, 212, 213, 214, 215,
970 216, 217, 218, 219, 220, 221, 222, 223,
971 224, 225, 226, 227, 228, 229, 230, 231,
972 232, 233, 234, 235, 236, 237, 238, 239,
973 240, 241, 242, 243, 244, 245, 246, 247,
974 248, 249, 250, 251, 252, 253, 254, 255
977 EXT unsigned char fold[];
981 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
982 1, 2, 84, 151, 154, 155, 156, 157,
983 165, 246, 250, 3, 158, 7, 18, 29,
984 40, 51, 62, 73, 85, 96, 107, 118,
985 129, 140, 147, 148, 149, 150, 152, 153,
986 255, 182, 224, 205, 174, 176, 180, 217,
987 233, 232, 236, 187, 235, 228, 234, 226,
988 222, 219, 211, 195, 188, 193, 185, 184,
989 191, 183, 201, 229, 181, 220, 194, 162,
990 163, 208, 186, 202, 200, 218, 198, 179,
991 178, 214, 166, 170, 207, 199, 209, 206,
992 204, 160, 212, 216, 215, 192, 175, 173,
993 243, 172, 161, 190, 203, 189, 164, 230,
994 167, 248, 227, 244, 242, 255, 241, 231,
995 240, 253, 169, 210, 245, 237, 249, 247,
996 239, 168, 252, 251, 254, 238, 223, 221,
997 213, 225, 177, 197, 171, 196, 159, 4,
998 5, 6, 8, 9, 10, 11, 12, 13,
999 14, 15, 16, 17, 19, 20, 21, 22,
1000 23, 24, 25, 26, 27, 28, 30, 31,
1001 32, 33, 34, 35, 36, 37, 38, 39,
1002 41, 42, 43, 44, 45, 46, 47, 48,
1003 49, 50, 52, 53, 54, 55, 56, 57,
1004 58, 59, 60, 61, 63, 64, 65, 66,
1005 67, 68, 69, 70, 71, 72, 74, 75,
1006 76, 77, 78, 79, 80, 81, 82, 83,
1007 86, 87, 88, 89, 90, 91, 92, 93,
1008 94, 95, 97, 98, 99, 100, 101, 102,
1009 103, 104, 105, 106, 108, 109, 110, 111,
1010 112, 113, 114, 115, 116, 117, 119, 120,
1011 121, 122, 123, 124, 125, 126, 127, 128,
1012 130, 131, 132, 133, 134, 135, 136, 137,
1013 138, 139, 141, 142, 143, 144, 145, 146
1016 EXT unsigned char freq[];
1021 EXT char* block_type[] = {
1030 EXT char* block_type[];
1034 /*****************************************************************************/
1035 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1036 /*****************************************************************************/
1037 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1050 EXT U32 lex_state; /* next token is determined */
1051 EXT U32 lex_defer; /* state after determined token */
1052 EXT expectation lex_expect; /* expect after determined token */
1053 EXT I32 lex_brackets; /* bracket count */
1054 EXT I32 lex_formbrack; /* bracket count at outer format level */
1055 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1056 EXT I32 lex_casemods; /* casemod count */
1057 EXT I32 lex_dojoin; /* doing an array interpolation */
1058 EXT I32 lex_starts; /* how many interps done on level */
1059 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1060 EXT SV * lex_repl; /* runtime replacement from s/// */
1061 EXT OP * lex_op; /* extra info to pass back on op */
1062 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1063 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1064 EXT char * lex_brackstack; /* what kind of brackets to pop */
1065 EXT char * lex_casestack; /* what kind of case mods in effect */
1067 /* What we know when we're in LEX_KNOWNEXT state. */
1068 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1069 EXT I32 nexttype[5]; /* type of next token */
1072 EXT FILE * VOL rsfp INIT(Nullfp);
1075 EXT char * oldbufptr;
1076 EXT char * oldoldbufptr;
1078 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1079 EXT char * autoboot_preamble INIT(Nullch);
1080 EXT cryptswitch_t cryptswitch_fp;
1082 EXT I32 multi_start; /* 1st line of multi-line string */
1083 EXT I32 multi_end; /* last line of multi-line string */
1084 EXT I32 multi_open; /* delimiter of said string */
1085 EXT I32 multi_close; /* delimiter of said string */
1088 EXT I32 error_count; /* how many errors so far, max 10 */
1089 EXT I32 subline; /* line this subroutine began on */
1090 EXT SV * subname; /* name of current subroutine */
1092 EXT CV * compcv; /* currently compiling subroutine */
1093 EXT AV * comppad; /* storage for lexically scoped temporaries */
1094 EXT AV * comppad_name; /* variable names for "my" variables */
1095 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1096 EXT I32 min_intro_pending;/* start of vars to introduce */
1097 EXT I32 max_intro_pending;/* end of vars to introduce */
1098 EXT I32 padix; /* max used index in current "register" pad */
1099 EXT I32 padix_floor; /* how low may inner block reset padix */
1100 EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1103 EXT I32 thisexpr; /* name id for nothing_in_common() */
1104 EXT char * last_uni; /* position of last named-unary operator */
1105 EXT char * last_lop; /* position of last list operator */
1106 EXT OPCODE last_lop_op; /* last list operator */
1107 EXT bool in_my; /* we're compiling a "my" declaration */
1109 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1112 EXT U32 hints; /* various compilation flags */
1114 /* Note: the lowest 8 bits are reserved for
1115 stuffing into op->op_private */
1116 #define HINT_INTEGER 0x00000001
1117 #define HINT_STRICT_REFS 0x00000002
1119 #define HINT_BLOCK_SCOPE 0x00000100
1120 #define HINT_STRICT_SUBS 0x00000200
1121 #define HINT_STRICT_VARS 0x00000400
1123 /**************************************************************************/
1124 /* This regexp stuff is global since it always happens within 1 expr eval */
1125 /**************************************************************************/
1127 EXT char * regprecomp; /* uncompiled string. */
1128 EXT char * regparse; /* Input-scan pointer. */
1129 EXT char * regxend; /* End of input for compile */
1130 EXT I32 regnpar; /* () count. */
1131 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1132 EXT I32 regsize; /* Code size. */
1133 EXT I32 regnaughty; /* How bad is this pattern? */
1134 EXT I32 regsawback; /* Did we see \1, ...? */
1136 EXT char * reginput; /* String-input pointer. */
1137 EXT char * regbol; /* Beginning of input, for ^ check. */
1138 EXT char * regeol; /* End of input, for $ check. */
1139 EXT char ** regstartp; /* Pointer to startp array. */
1140 EXT char ** regendp; /* Ditto for endp. */
1141 EXT U32 * reglastparen; /* Similarly for lastparen. */
1142 EXT char * regtill; /* How far we are required to go. */
1143 EXT U16 regflags; /* are we folding, multilining? */
1144 EXT char regprev; /* char before regbol, \n if none */
1146 /***********************************************/
1147 /* Global only to current interpreter instance */
1148 /***********************************************/
1153 struct interpreter {
1156 #define IINIT(x) INIT(x)
1159 /* pseudo environmental stuff */
1161 IEXT char ** Iorigargv;
1165 IEXT char * Iorigfilename;
1167 IEXT SV * Iwarnhook;
1168 IEXT SV * Iparsehook;
1173 IEXT char Ipatchlevel[6];
1174 IEXT char * Inrs IINIT("\n");
1175 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1176 IEXT I32 Inrslen IINIT(1);
1177 IEXT char * Isplitstr IINIT(" ");
1178 IEXT bool Ipreprocess;
1184 IEXT bool Idoswitches;
1186 IEXT bool Idoextract;
1187 IEXT bool Isawampersand; /* must save all match strings */
1188 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1189 IEXT bool Isawi; /* study must assume case insensitive */
1192 IEXT bool Ido_undump; /* -u or dump seen? */
1193 IEXT char * Iinplace;
1194 IEXT char * Ie_tmpname;
1196 IEXT VOL U32 Idebug;
1198 /* This value may be raised by extensions for testing purposes */
1199 IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
1201 /* magical thingies */
1202 IEXT Time_t Ibasetime; /* $^T */
1203 IEXT SV * Iformfeed; /* $^L */
1204 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1205 IEXT char * Irs IINIT("\n"); /* $/ */
1206 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1207 IEXT STRLEN Irslen IINIT(1);
1209 IEXT char * Iofs; /* $, */
1210 IEXT STRLEN Iofslen;
1211 IEXT char * Iors; /* $\ */
1212 IEXT STRLEN Iorslen;
1213 IEXT char * Iofmt; /* $# */
1214 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1215 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1216 IEXT U32 Istatusvalue; /* $? */
1218 IEXT struct stat Istatcache; /* _ */
1220 IEXT SV * Istatname IINIT(Nullsv);
1222 /* shortcuts to various I/O objects */
1224 IEXT GV * Ilast_in_gv;
1227 IEXT GV * Idefoutgv;
1228 IEXT GV * Iargvoutgv;
1230 /* shortcuts to regexp stuff */
1234 IEXT PMOP * Icurpm; /* what to do \ interps from */
1235 IEXT I32 * Iscreamfirst;
1236 IEXT I32 * Iscreamnext;
1237 IEXT I32 Imaxscream IINIT(-1);
1238 IEXT SV * Ilastscream;
1240 /* shortcuts to debugging objects */
1244 IEXT SV * IDBsingle;
1246 IEXT SV * IDBsignal;
1247 IEXT AV * Ilineary; /* lines of script for debugger */
1248 IEXT AV * Idbargs; /* args to call listed by caller function */
1251 IEXT HV * Idefstash; /* main symbol table */
1252 IEXT HV * Icurstash; /* symbol table for current package */
1253 IEXT HV * Idebstash; /* symbol table for perldb package */
1254 IEXT SV * Icurstname; /* name of current package */
1255 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1256 IEXT AV * Iendav; /* names of END subroutines */
1257 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1258 IEXT AV * Ipadname; /* variable names for "my" variables */
1260 /* memory management */
1261 IEXT SV ** Itmps_stack;
1262 IEXT I32 Itmps_ix IINIT(-1);
1263 IEXT I32 Itmps_floor IINIT(-1);
1265 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1266 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1267 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1268 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1270 /* funky return mechanisms */
1271 IEXT I32 Ilastspbase;
1273 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1275 /* subprocess state */
1276 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1277 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1279 /* internal state */
1280 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1281 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1282 IEXT int Idelaymagic; /* ($<,$>) = ... */
1283 IEXT bool Idirty; /* In the middle of tearing things down? */
1284 IEXT U8 Ilocalizing; /* are we processing a local() list? */
1285 IEXT bool Itainted; /* using variables controlled by $< */
1286 IEXT bool Itainting; /* doing taint checks */
1290 IEXT I32 Idlmax IINIT(128);
1291 IEXT char * Idebname;
1292 IEXT char * Idebdelim;
1294 /* current interpreter roots */
1296 IEXT OP * Imain_root;
1297 IEXT OP * Imain_start;
1298 IEXT OP * Ieval_root;
1299 IEXT OP * Ieval_start;
1301 /* runtime control stuff */
1302 IEXT COP * VOL Icurcop IINIT(&compiling);
1303 IEXT line_t Icopline IINIT(NOLINE);
1304 IEXT CONTEXT * Icxstack;
1305 IEXT I32 Icxstack_ix IINIT(-1);
1306 IEXT I32 Icxstack_max IINIT(128);
1307 IEXT jmp_buf Itop_env;
1311 IEXT AV * Istack; /* THE STACK */
1312 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1313 IEXT SV ** Imystack_base; /* stack->array_ary */
1314 IEXT SV ** Imystack_sp; /* stack pointer now */
1315 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1317 /* format accumulators */
1318 IEXT SV * Iformtarget;
1319 IEXT SV * Ibodytarget;
1320 IEXT SV * Itoptarget;
1322 /* statics moved here for shared library purposes */
1323 IEXT SV Istrchop; /* return value from chop */
1324 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1325 IEXT int Ilastfd; /* what to preserve mode on */
1326 IEXT char * Ioldname; /* what to preserve mode on */
1327 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1328 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1329 IEXT OP * Isortcop; /* user defined sort routine */
1330 IEXT HV * Isortstash; /* which is in some package or other */
1331 IEXT GV * Ifirstgv; /* $a */
1332 IEXT GV * Isecondgv; /* $b */
1333 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1334 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1335 IEXT SV * Imystrk; /* temp key string for do_each() */
1336 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1337 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1338 IEXT I32 Igensym; /* next symbol for getsym() to define */
1339 IEXT bool Ipreambled;
1340 IEXT int Ilaststatval IINIT(-1);
1341 IEXT I32 Ilaststype IINIT(OP_STAT);
1349 struct interpreter {
1367 # include <stdarg.h>
1370 # include <varargs.h>
1377 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1378 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1380 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1381 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1388 /* The following must follow proto.h */
1391 MGVTBL vtbl_sv = {magic_get,
1395 MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1396 MGVTBL vtbl_envelem = {0, magic_setenv,
1399 MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1400 MGVTBL vtbl_sigelem = {0, magic_setsig,
1402 MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1404 MGVTBL vtbl_packelem = {magic_getpack,
1408 MGVTBL vtbl_dbline = {0, magic_setdbline,
1410 MGVTBL vtbl_isa = {0, magic_setisa,
1412 MGVTBL vtbl_isaelem = {0, magic_setisa,
1414 MGVTBL vtbl_arylen = {magic_getarylen,
1417 MGVTBL vtbl_glob = {magic_getglob,
1420 MGVTBL vtbl_mglob = {0, magic_setmglob,
1422 MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1424 MGVTBL vtbl_substr = {0, magic_setsubstr,
1426 MGVTBL vtbl_vec = {0, magic_setvec,
1428 MGVTBL vtbl_pos = {magic_getpos,
1431 MGVTBL vtbl_bm = {0, magic_setbm,
1433 MGVTBL vtbl_uvar = {magic_getuvar,
1438 MGVTBL vtbl_amagic = {0, magic_setamagic,
1439 0, 0, magic_setamagic};
1440 MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1441 0, 0, magic_setamagic};
1442 #endif /* OVERLOAD */
1446 EXT MGVTBL vtbl_env;
1447 EXT MGVTBL vtbl_envelem;
1448 EXT MGVTBL vtbl_sig;
1449 EXT MGVTBL vtbl_sigelem;
1450 EXT MGVTBL vtbl_pack;
1451 EXT MGVTBL vtbl_packelem;
1452 EXT MGVTBL vtbl_dbline;
1453 EXT MGVTBL vtbl_isa;
1454 EXT MGVTBL vtbl_isaelem;
1455 EXT MGVTBL vtbl_arylen;
1456 EXT MGVTBL vtbl_glob;
1457 EXT MGVTBL vtbl_mglob;
1458 EXT MGVTBL vtbl_taint;
1459 EXT MGVTBL vtbl_substr;
1460 EXT MGVTBL vtbl_vec;
1461 EXT MGVTBL vtbl_pos;
1463 EXT MGVTBL vtbl_uvar;
1466 EXT MGVTBL vtbl_amagic;
1467 EXT MGVTBL vtbl_amagicelem;
1468 #endif /* OVERLOAD */
1473 EXT long amagic_generation;
1475 #define NofAMmeth 29
1477 EXT char * AMG_names[NofAMmeth][2] = {
1479 {"bool", "nomethod"},
1509 EXT char * AMG_names[NofAMmeth][2];
1510 #endif /* def INITAMAGIC */
1515 CV* table[NofAMmeth*2];
1518 typedef struct am_table AMT;
1520 #define AMGfallNEVER 1
1522 #define AMGfallYES 3
1525 fallback_amg, abs_amg,
1526 bool__amg, nomethod_amg,
1527 string_amg, numer_amg,
1528 add_amg, add_ass_amg,
1529 subtr_amg, subtr_ass_amg,
1530 mult_amg, mult_ass_amg,
1531 div_amg, div_ass_amg,
1532 mod_amg, mod_ass_amg,
1533 pow_amg, pow_ass_amg,
1534 lshift_amg, lshift_ass_amg,
1535 rshift_amg, rshift_ass_amg,
1536 band_amg, band_ass_amg,
1537 bor_amg, bor_ass_amg,
1538 bxor_amg, bxor_ass_amg,
1551 repeat_amg, repeat_ass_amg,
1552 concat_amg, concat_ass_amg,
1555 #endif /* OVERLOAD */
1557 #endif /* Include guard */