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__)
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>
209 #include <sys/stat.h>
212 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
213 like UTekV) are broken, sometimes giving false positives. Undefine
214 them here and let the code below set them to proper values.
216 The ghs macro stands for GreenHills Software C-1.8.5 which
217 is the C compiler for sysV88 and the various derivatives.
218 This header file bug is corrected in gcc-2.5.8 and later versions.
219 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
221 #if defined(uts) || (defined(m88k) && defined(ghs))
235 # ifdef I_SYS_TIME_KERNEL
238 # include <sys/time.h>
239 # ifdef I_SYS_TIME_KERNEL
245 # if defined(HAS_TIMES) && defined(I_SYS_TIMES)
246 # include <sys/times.h>
250 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
256 # define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
258 #endif /* !HAS_MKFIFO */
263 # include <net/errno.h>
267 # define FIXSTATUS(sts) (U_L((sts) & 0xffff))
268 # define SHIFTSTATUS(sts) ((sts) >> 8)
269 # define SETERRNO(errcode,vmserrcode) errno = (errcode)
271 # define FIXSTATUS(sts) (U_L(sts))
272 # define SHIFTSTATUS(sts) (sts)
273 # define SETERRNO(errcode,vmserrcode) {set_errno(errcode); set_vaxc_errno(vmserrcode);}
278 extern int errno; /* ANSI allows errno to be an lvalue expr */
284 char *strerror _((int,...));
286 char *strerror _((int));
289 # define Strerror strerror
292 # ifdef HAS_SYS_ERRLIST
294 extern char *sys_errlist[];
296 # define Strerror(e) \
297 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
304 # include <sys/ioctl.h>
308 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
309 # ifdef HAS_SOCKETPAIR
310 # undef HAS_SOCKETPAIR
325 /* Configure already sets Direntry_t */
326 #if defined(I_DIRENT)
328 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
329 # include <sys/dir.h>
333 # include <sys/ndir.h>
337 # include <ndir.h> /* may be wrong in the future */
339 # include <sys/dir.h>
346 /* work around botch in SunOS 4.0.1 and 4.0.2 */
348 # define fputs(sv,fp) fprintf(fp,"%s",sv)
353 * The following gobbledygook brought to you on behalf of __STDC__.
354 * (I could just use #ifndef __STDC__, but this is more bulletproof
355 * in the face of half-implementations.)
360 # define S_IFMT _S_IFMT
362 # define S_IFMT 0170000
367 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
371 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
376 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
378 # define S_ISBLK(m) (0)
383 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
388 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
390 # define S_ISFIFO(m) (0)
396 # define S_ISLNK(m) _S_ISLNK(m)
399 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
402 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
404 # define S_ISLNK(m) (0)
412 # define S_ISSOCK(m) _S_ISSOCK(m)
415 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
418 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
420 # define S_ISSOCK(m) (0)
428 # define S_IRUSR S_IREAD
429 # define S_IWUSR S_IWRITE
430 # define S_IXUSR S_IEXEC
432 # define S_IRUSR 0400
433 # define S_IWUSR 0200
434 # define S_IXUSR 0100
436 # define S_IRGRP (S_IRUSR>>3)
437 # define S_IWGRP (S_IWUSR>>3)
438 # define S_IXGRP (S_IXUSR>>3)
439 # define S_IROTH (S_IRUSR>>6)
440 # define S_IWOTH (S_IWUSR>>6)
441 # define S_IXOTH (S_IXUSR>>6)
445 # define S_ISUID 04000
449 # define S_ISGID 02000
456 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
457 # define SLOPPYDIVIDE
460 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
472 # if defined(convex) || defined (uts)
473 # define Quad_t long long
479 typedef unsigned Quad_t UV;
482 typedef unsigned long UV;
485 typedef MEM_SIZE STRLEN;
487 typedef struct op OP;
488 typedef struct cop COP;
489 typedef struct unop UNOP;
490 typedef struct binop BINOP;
491 typedef struct listop LISTOP;
492 typedef struct logop LOGOP;
493 typedef struct condop CONDOP;
494 typedef struct pmop PMOP;
495 typedef struct svop SVOP;
496 typedef struct gvop GVOP;
497 typedef struct pvop PVOP;
498 typedef struct cvop CVOP;
499 typedef struct loop LOOP;
501 typedef struct Outrec Outrec;
502 typedef struct interpreter PerlInterpreter;
503 typedef struct ff FF;
504 typedef struct sv SV;
505 typedef struct av AV;
506 typedef struct hv HV;
507 typedef struct cv CV;
508 typedef struct regexp REGEXP;
509 typedef struct gp GP;
510 typedef struct sv GV;
511 typedef struct io IO;
512 typedef struct context CONTEXT;
513 typedef struct block BLOCK;
515 typedef struct magic MAGIC;
516 typedef struct xrv XRV;
517 typedef struct xpv XPV;
518 typedef struct xpviv XPVIV;
519 typedef struct xpvnv XPVNV;
520 typedef struct xpvmg XPVMG;
521 typedef struct xpvlv XPVLV;
522 typedef struct xpvav XPVAV;
523 typedef struct xpvhv XPVHV;
524 typedef struct xpvgv XPVGV;
525 typedef struct xpvcv XPVCV;
526 typedef struct xpvbm XPVBM;
527 typedef struct xpvfm XPVFM;
528 typedef struct xpvio XPVIO;
529 typedef struct mgvtbl MGVTBL;
530 typedef union any ANY;
534 typedef I32 (*filter_t) _((int, SV *, int));
535 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
536 #define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
537 #define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
545 # include "unixish.h"
550 #define pause() sleep((32767<<16)+32767)
555 /* on BSDish systes we're safe */
556 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
558 /* otherwise guess at what's safe */
559 # define IOCPARM_LEN(x) 256
568 void (*any_dptr) _((void*));
585 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
589 #if defined(htonl) && !defined(HAS_HTONL)
592 #if defined(htons) && !defined(HAS_HTONS)
595 #if defined(ntohl) && !defined(HAS_NTOHL)
598 #if defined(ntohs) && !defined(HAS_NTOHS)
602 #if (BYTEORDER & 0xffff) != 0x4321
608 #define htons my_swap
609 #define htonl my_htonl
610 #define ntohs my_swap
611 #define ntohl my_ntohl
614 #if (BYTEORDER & 0xffff) == 0x4321
623 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
626 #if BYTEORDER != 0x1234
631 # if BYTEORDER == 0x4321
632 # define vtohl(x) ((((x)&0xFF)<<24) \
634 +(((x)&0x0000FF00)<<8) \
635 +(((x)&0x00FF0000)>>8) )
636 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
637 # define htovl(x) vtohl(x)
638 # define htovs(x) vtohs(x)
640 /* otherwise default to functions in util.c */
644 #define U_S(what) ((U16)(what))
645 #define U_I(what) ((unsigned int)(what))
646 #define U_L(what) ((U32)(what))
648 U32 cast_ulong _((double));
649 #define U_S(what) ((U16)cast_ulong((double)(what)))
650 #define U_I(what) ((unsigned int)cast_ulong((double)(what)))
651 #define U_L(what) (cast_ulong((double)(what)))
655 #define I_32(what) ((I32)(what))
656 #define I_V(what) ((IV)(what))
657 #define U_V(what) ((UV)(what))
659 I32 cast_i32 _((double));
660 #define I_32(what) (cast_i32((double)(what)))
661 IV cast_iv _((double));
662 #define I_V(what) (cast_iv((double)(what)))
663 UV cast_uv _((double));
664 #define U_V(what) (cast_uv((double)(what)))
678 #define TMPPATH "plXXXXXX"
681 #define TMPPATH "sys$scratch:perl-eXXXXXX"
683 #define TMPPATH "/tmp/perl-eXXXXXX"
688 Uid_t getuid _((void));
689 Uid_t geteuid _((void));
690 Gid_t getgid _((void));
691 Gid_t getegid _((void));
697 #define DEBUG(a) if (debug) a
698 #define DEBUG_p(a) if (debug & 1) a
699 #define DEBUG_s(a) if (debug & 2) a
700 #define DEBUG_l(a) if (debug & 4) a
701 #define DEBUG_t(a) if (debug & 8) a
702 #define DEBUG_o(a) if (debug & 16) a
703 #define DEBUG_c(a) if (debug & 32) a
704 #define DEBUG_P(a) if (debug & 64) a
705 #define DEBUG_m(a) if (debug & 128) a
706 #define DEBUG_f(a) if (debug & 256) a
707 #define DEBUG_r(a) if (debug & 512) a
708 #define DEBUG_x(a) if (debug & 1024) a
709 #define DEBUG_u(a) if (debug & 2048) a
710 #define DEBUG_L(a) if (debug & 4096) a
711 #define DEBUG_H(a) if (debug & 8192) a
712 #define DEBUG_X(a) if (debug & 16384) a
713 #define DEBUG_D(a) if (debug & 32768) a
734 #define YYMAXDEPTH 300
736 #define assert(what) DEB( { \
738 croak("Assertion failed: file \"%s\", line %d", \
739 __FILE__, __LINE__); \
744 I32 (*uf_val)_((IV, SV*));
745 I32 (*uf_set)_((IV, SV*));
749 /* Fix these up for __STDC__ */
751 char *mktemp _((char*));
752 double atof _((const char*));
756 /* All of these are in stdlib.h or time.h for ANSI C */
758 struct tm *gmtime(), *localtime();
759 char *strchr(), *strrchr();
760 char *strcpy(), *strcat();
761 #endif /* ! STANDARD_C */
770 double exp _((double));
771 double log _((double));
772 double sqrt _((double));
773 double modf _((double,double*));
774 double sin _((double));
775 double cos _((double));
776 double atan2 _((double,double));
777 double pow _((double,double));
784 char *crypt _((const char*, const char*));
785 char *getenv _((const char*));
786 Off_t lseek _((int,Off_t,int));
787 char *getlogin _((void));
790 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
792 I32 unlnk _((char*));
794 #define UNLINK unlink
798 # ifdef HAS_SETRESUID
799 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
800 # define HAS_SETREUID
804 # ifdef HAS_SETRESGID
805 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
806 # define HAS_SETREGID
818 # define PAD_SV(po) pad_sv(po)
820 # define PAD_SV(po) curpad[po]
828 EXT PerlInterpreter * curinterp; /* currently running interpreter */
829 #ifndef VMS /* VMS doesn't use environ array */
830 extern char ** environ; /* environment variables supplied via exec */
832 EXT int uid; /* current real user id */
833 EXT int euid; /* current effective user id */
834 EXT int gid; /* current real group id */
835 EXT int egid; /* current effective group id */
836 EXT bool nomemok; /* let malloc context handle nomem */
837 EXT U32 an; /* malloc sequence number */
838 EXT U32 cop_seqmax; /* statement sequence number */
839 EXT U32 op_seqmax; /* op sequence number */
840 EXT U32 evalseq; /* eval sequence number */
841 EXT U32 sub_generation; /* inc to force methods to be looked up again */
842 EXT char ** origenviron;
844 EXT U32 * profiledata;
846 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
847 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
848 EXT double * xnv_root; /* free xnv list--shared by interpreters */
849 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
850 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
852 /* Stack for currently executing thread--context switch must handle this. */
853 EXT SV ** stack_base; /* stack->array_ary */
854 EXT SV ** stack_sp; /* stack pointer now */
855 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
857 /* likewise for these */
859 EXT OP * op; /* current op--oughta be in a global register */
861 EXT I32 * scopestack; /* blocks we've entered */
862 EXT I32 scopestack_ix;
863 EXT I32 scopestack_max;
865 EXT ANY* savestack; /* to save non-local values on */
866 EXT I32 savestack_ix;
867 EXT I32 savestack_max;
869 EXT OP ** retstack; /* returns we've pushed */
871 EXT I32 retstack_max;
873 EXT I32 * markstack; /* stackmarks we're remembering */
874 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
875 EXT I32 * markstack_max; /* stackmarks we're remembering */
883 EXT char tokenbuf[256];
884 EXT struct stat statbuf;
886 EXT struct tms timesbuf;
888 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
890 /* for tmp use in stupid debuggers */
895 /* handy constants */
896 EXT char * Yes INIT("1");
897 EXT char * No INIT("");
898 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
899 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
900 EXT char * vert INIT("|");
902 EXT char warn_uninit[]
903 INIT("Use of uninitialized value");
904 EXT char warn_nosemi[]
905 INIT("Semicolon seems to be missing");
906 EXT char warn_reserved[]
907 INIT("Unquoted string \"%s\" may clash with future reserved word");
909 INIT("Unsuccessful %s on filename containing newline");
910 EXT char no_wrongref[]
911 INIT("Can't use %s ref as %s ref");
913 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
915 INIT("Can't use an undefined value as %s reference");
917 INIT("Modification of non-creatable array value attempted, subscript %d");
919 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
921 INIT("Modification of a read-only value attempted");
923 INIT("Out of memory!\n");
924 EXT char no_security[]
925 INIT("Insecure dependency in %s%s");
926 EXT char no_sock_func[]
927 INIT("Unsupported socket function \"%s\" called");
928 EXT char no_dir_func[]
929 INIT("Unsupported directory function \"%s\" called");
931 INIT("The %s function is unimplemented");
933 INIT("\"my\" variable %s can't be in a package");
939 EXT char * cshname INIT(CSH);
944 EXT char *sig_name[] = {
948 EXT char *sig_name[];
952 EXT unsigned char fold[] = { /* fast case folding table */
953 0, 1, 2, 3, 4, 5, 6, 7,
954 8, 9, 10, 11, 12, 13, 14, 15,
955 16, 17, 18, 19, 20, 21, 22, 23,
956 24, 25, 26, 27, 28, 29, 30, 31,
957 32, 33, 34, 35, 36, 37, 38, 39,
958 40, 41, 42, 43, 44, 45, 46, 47,
959 48, 49, 50, 51, 52, 53, 54, 55,
960 56, 57, 58, 59, 60, 61, 62, 63,
961 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
962 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
963 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
964 'x', 'y', 'z', 91, 92, 93, 94, 95,
965 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
966 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
967 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
968 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
969 128, 129, 130, 131, 132, 133, 134, 135,
970 136, 137, 138, 139, 140, 141, 142, 143,
971 144, 145, 146, 147, 148, 149, 150, 151,
972 152, 153, 154, 155, 156, 157, 158, 159,
973 160, 161, 162, 163, 164, 165, 166, 167,
974 168, 169, 170, 171, 172, 173, 174, 175,
975 176, 177, 178, 179, 180, 181, 182, 183,
976 184, 185, 186, 187, 188, 189, 190, 191,
977 192, 193, 194, 195, 196, 197, 198, 199,
978 200, 201, 202, 203, 204, 205, 206, 207,
979 208, 209, 210, 211, 212, 213, 214, 215,
980 216, 217, 218, 219, 220, 221, 222, 223,
981 224, 225, 226, 227, 228, 229, 230, 231,
982 232, 233, 234, 235, 236, 237, 238, 239,
983 240, 241, 242, 243, 244, 245, 246, 247,
984 248, 249, 250, 251, 252, 253, 254, 255
987 EXT unsigned char fold[];
991 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
992 1, 2, 84, 151, 154, 155, 156, 157,
993 165, 246, 250, 3, 158, 7, 18, 29,
994 40, 51, 62, 73, 85, 96, 107, 118,
995 129, 140, 147, 148, 149, 150, 152, 153,
996 255, 182, 224, 205, 174, 176, 180, 217,
997 233, 232, 236, 187, 235, 228, 234, 226,
998 222, 219, 211, 195, 188, 193, 185, 184,
999 191, 183, 201, 229, 181, 220, 194, 162,
1000 163, 208, 186, 202, 200, 218, 198, 179,
1001 178, 214, 166, 170, 207, 199, 209, 206,
1002 204, 160, 212, 216, 215, 192, 175, 173,
1003 243, 172, 161, 190, 203, 189, 164, 230,
1004 167, 248, 227, 244, 242, 255, 241, 231,
1005 240, 253, 169, 210, 245, 237, 249, 247,
1006 239, 168, 252, 251, 254, 238, 223, 221,
1007 213, 225, 177, 197, 171, 196, 159, 4,
1008 5, 6, 8, 9, 10, 11, 12, 13,
1009 14, 15, 16, 17, 19, 20, 21, 22,
1010 23, 24, 25, 26, 27, 28, 30, 31,
1011 32, 33, 34, 35, 36, 37, 38, 39,
1012 41, 42, 43, 44, 45, 46, 47, 48,
1013 49, 50, 52, 53, 54, 55, 56, 57,
1014 58, 59, 60, 61, 63, 64, 65, 66,
1015 67, 68, 69, 70, 71, 72, 74, 75,
1016 76, 77, 78, 79, 80, 81, 82, 83,
1017 86, 87, 88, 89, 90, 91, 92, 93,
1018 94, 95, 97, 98, 99, 100, 101, 102,
1019 103, 104, 105, 106, 108, 109, 110, 111,
1020 112, 113, 114, 115, 116, 117, 119, 120,
1021 121, 122, 123, 124, 125, 126, 127, 128,
1022 130, 131, 132, 133, 134, 135, 136, 137,
1023 138, 139, 141, 142, 143, 144, 145, 146
1026 EXT unsigned char freq[];
1031 EXT char* block_type[] = {
1040 EXT char* block_type[];
1044 /*****************************************************************************/
1045 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1046 /*****************************************************************************/
1047 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1060 EXT U32 lex_state; /* next token is determined */
1061 EXT U32 lex_defer; /* state after determined token */
1062 EXT expectation lex_expect; /* expect after determined token */
1063 EXT I32 lex_brackets; /* bracket count */
1064 EXT I32 lex_formbrack; /* bracket count at outer format level */
1065 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1066 EXT I32 lex_casemods; /* casemod count */
1067 EXT I32 lex_dojoin; /* doing an array interpolation */
1068 EXT I32 lex_starts; /* how many interps done on level */
1069 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1070 EXT SV * lex_repl; /* runtime replacement from s/// */
1071 EXT OP * lex_op; /* extra info to pass back on op */
1072 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1073 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1074 EXT char * lex_brackstack; /* what kind of brackets to pop */
1075 EXT char * lex_casestack; /* what kind of case mods in effect */
1077 /* What we know when we're in LEX_KNOWNEXT state. */
1078 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1079 EXT I32 nexttype[5]; /* type of next token */
1082 EXT FILE * VOL rsfp INIT(Nullfp);
1085 EXT char * oldbufptr;
1086 EXT char * oldoldbufptr;
1088 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1089 EXT char * autoboot_preamble INIT(Nullch);
1090 EXT AV * rsfp_filters;
1092 EXT I32 multi_start; /* 1st line of multi-line string */
1093 EXT I32 multi_end; /* last line of multi-line string */
1094 EXT I32 multi_open; /* delimiter of said string */
1095 EXT I32 multi_close; /* delimiter of said string */
1098 EXT I32 error_count; /* how many errors so far, max 10 */
1099 EXT I32 subline; /* line this subroutine began on */
1100 EXT SV * subname; /* name of current subroutine */
1102 EXT CV * compcv; /* currently compiling subroutine */
1103 EXT AV * comppad; /* storage for lexically scoped temporaries */
1104 EXT AV * comppad_name; /* variable names for "my" variables */
1105 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1106 EXT I32 min_intro_pending;/* start of vars to introduce */
1107 EXT I32 max_intro_pending;/* end of vars to introduce */
1108 EXT I32 padix; /* max used index in current "register" pad */
1109 EXT I32 padix_floor; /* how low may inner block reset padix */
1110 EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1113 EXT I32 thisexpr; /* name id for nothing_in_common() */
1114 EXT char * last_uni; /* position of last named-unary operator */
1115 EXT char * last_lop; /* position of last list operator */
1116 EXT OPCODE last_lop_op; /* last list operator */
1117 EXT bool in_my; /* we're compiling a "my" declaration */
1119 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1122 EXT U32 hints; /* various compilation flags */
1124 /* Note: the lowest 8 bits are reserved for
1125 stuffing into op->op_private */
1126 #define HINT_INTEGER 0x00000001
1127 #define HINT_STRICT_REFS 0x00000002
1129 #define HINT_BLOCK_SCOPE 0x00000100
1130 #define HINT_STRICT_SUBS 0x00000200
1131 #define HINT_STRICT_VARS 0x00000400
1133 /**************************************************************************/
1134 /* This regexp stuff is global since it always happens within 1 expr eval */
1135 /**************************************************************************/
1137 EXT char * regprecomp; /* uncompiled string. */
1138 EXT char * regparse; /* Input-scan pointer. */
1139 EXT char * regxend; /* End of input for compile */
1140 EXT I32 regnpar; /* () count. */
1141 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1142 EXT I32 regsize; /* Code size. */
1143 EXT I32 regnaughty; /* How bad is this pattern? */
1144 EXT I32 regsawback; /* Did we see \1, ...? */
1146 EXT char * reginput; /* String-input pointer. */
1147 EXT char * regbol; /* Beginning of input, for ^ check. */
1148 EXT char * regeol; /* End of input, for $ check. */
1149 EXT char ** regstartp; /* Pointer to startp array. */
1150 EXT char ** regendp; /* Ditto for endp. */
1151 EXT U32 * reglastparen; /* Similarly for lastparen. */
1152 EXT char * regtill; /* How far we are required to go. */
1153 EXT U16 regflags; /* are we folding, multilining? */
1154 EXT char regprev; /* char before regbol, \n if none */
1156 /***********************************************/
1157 /* Global only to current interpreter instance */
1158 /***********************************************/
1163 struct interpreter {
1166 #define IINIT(x) INIT(x)
1169 /* pseudo environmental stuff */
1171 IEXT char ** Iorigargv;
1175 IEXT char * Iorigfilename;
1177 IEXT SV * Iwarnhook;
1178 IEXT SV * Iparsehook;
1183 IEXT char Ipatchlevel[6];
1184 IEXT char * Inrs IINIT("\n");
1185 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1186 IEXT I32 Inrslen IINIT(1);
1187 IEXT char * Isplitstr IINIT(" ");
1188 IEXT bool Ipreprocess;
1194 IEXT bool Idoswitches;
1196 IEXT bool Idoextract;
1197 IEXT bool Isawampersand; /* must save all match strings */
1198 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1199 IEXT bool Isawi; /* study must assume case insensitive */
1202 IEXT bool Ido_undump; /* -u or dump seen? */
1203 IEXT char * Iinplace;
1204 IEXT char * Ie_tmpname;
1206 IEXT VOL U32 Idebug;
1208 /* This value may be raised by extensions for testing purposes */
1209 IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
1211 /* magical thingies */
1212 IEXT Time_t Ibasetime; /* $^T */
1213 IEXT SV * Iformfeed; /* $^L */
1214 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1215 IEXT char * Irs IINIT("\n"); /* $/ */
1216 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1217 IEXT STRLEN Irslen IINIT(1);
1219 IEXT char * Iofs; /* $, */
1220 IEXT STRLEN Iofslen;
1221 IEXT char * Iors; /* $\ */
1222 IEXT STRLEN Iorslen;
1223 IEXT char * Iofmt; /* $# */
1224 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1225 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1226 IEXT U32 Istatusvalue; /* $? */
1228 IEXT struct stat Istatcache; /* _ */
1230 IEXT SV * Istatname IINIT(Nullsv);
1232 /* shortcuts to various I/O objects */
1234 IEXT GV * Ilast_in_gv;
1237 IEXT GV * Idefoutgv;
1238 IEXT GV * Iargvoutgv;
1240 /* shortcuts to regexp stuff */
1244 IEXT PMOP * Icurpm; /* what to do \ interps from */
1245 IEXT I32 * Iscreamfirst;
1246 IEXT I32 * Iscreamnext;
1247 IEXT I32 Imaxscream IINIT(-1);
1248 IEXT SV * Ilastscream;
1250 /* shortcuts to debugging objects */
1254 IEXT SV * IDBsingle;
1256 IEXT SV * IDBsignal;
1257 IEXT AV * Ilineary; /* lines of script for debugger */
1258 IEXT AV * Idbargs; /* args to call listed by caller function */
1261 IEXT HV * Idefstash; /* main symbol table */
1262 IEXT HV * Icurstash; /* symbol table for current package */
1263 IEXT HV * Idebstash; /* symbol table for perldb package */
1264 IEXT SV * Icurstname; /* name of current package */
1265 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1266 IEXT AV * Iendav; /* names of END subroutines */
1267 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1268 IEXT AV * Ipadname; /* variable names for "my" variables */
1270 /* memory management */
1271 IEXT SV ** Itmps_stack;
1272 IEXT I32 Itmps_ix IINIT(-1);
1273 IEXT I32 Itmps_floor IINIT(-1);
1275 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1276 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1277 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1278 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1280 /* funky return mechanisms */
1281 IEXT I32 Ilastspbase;
1283 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1285 /* subprocess state */
1286 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1287 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1289 /* internal state */
1290 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1291 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1292 IEXT int Idelaymagic; /* ($<,$>) = ... */
1293 IEXT bool Idirty; /* In the middle of tearing things down? */
1294 IEXT U8 Ilocalizing; /* are we processing a local() list? */
1295 IEXT bool Itainted; /* using variables controlled by $< */
1296 IEXT bool Itainting; /* doing taint checks */
1297 IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
1301 IEXT I32 Idlmax IINIT(128);
1302 IEXT char * Idebname;
1303 IEXT char * Idebdelim;
1305 /* current interpreter roots */
1307 IEXT OP * Imain_root;
1308 IEXT OP * Imain_start;
1309 IEXT OP * Ieval_root;
1310 IEXT OP * Ieval_start;
1312 /* runtime control stuff */
1313 IEXT COP * VOL Icurcop IINIT(&compiling);
1314 IEXT line_t Icopline IINIT(NOLINE);
1315 IEXT CONTEXT * Icxstack;
1316 IEXT I32 Icxstack_ix IINIT(-1);
1317 IEXT I32 Icxstack_max IINIT(128);
1318 IEXT jmp_buf Itop_env;
1322 IEXT AV * Istack; /* THE STACK */
1323 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1324 IEXT SV ** Imystack_base; /* stack->array_ary */
1325 IEXT SV ** Imystack_sp; /* stack pointer now */
1326 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1328 /* format accumulators */
1329 IEXT SV * Iformtarget;
1330 IEXT SV * Ibodytarget;
1331 IEXT SV * Itoptarget;
1333 /* statics moved here for shared library purposes */
1334 IEXT SV Istrchop; /* return value from chop */
1335 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1336 IEXT int Ilastfd; /* what to preserve mode on */
1337 IEXT char * Ioldname; /* what to preserve mode on */
1338 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1339 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1340 IEXT OP * Isortcop; /* user defined sort routine */
1341 IEXT HV * Isortstash; /* which is in some package or other */
1342 IEXT GV * Ifirstgv; /* $a */
1343 IEXT GV * Isecondgv; /* $b */
1344 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1345 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1346 IEXT SV * Imystrk; /* temp key string for do_each() */
1347 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1348 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1349 IEXT I32 Igensym; /* next symbol for getsym() to define */
1350 IEXT bool Ipreambled;
1351 IEXT int Ilaststatval IINIT(-1);
1352 IEXT I32 Ilaststype IINIT(OP_STAT);
1360 struct interpreter {
1378 # include <stdarg.h>
1381 # include <varargs.h>
1388 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1389 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1391 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1392 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1399 /* The following must follow proto.h */
1402 MGVTBL vtbl_sv = {magic_get,
1406 MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1407 MGVTBL vtbl_envelem = {0, magic_setenv,
1410 MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1411 MGVTBL vtbl_sigelem = {0, magic_setsig,
1413 MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1415 MGVTBL vtbl_packelem = {magic_getpack,
1419 MGVTBL vtbl_dbline = {0, magic_setdbline,
1421 MGVTBL vtbl_isa = {0, magic_setisa,
1423 MGVTBL vtbl_isaelem = {0, magic_setisa,
1425 MGVTBL vtbl_arylen = {magic_getarylen,
1428 MGVTBL vtbl_glob = {magic_getglob,
1431 MGVTBL vtbl_mglob = {0, magic_setmglob,
1433 MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1435 MGVTBL vtbl_substr = {0, magic_setsubstr,
1437 MGVTBL vtbl_vec = {0, magic_setvec,
1439 MGVTBL vtbl_pos = {magic_getpos,
1442 MGVTBL vtbl_bm = {0, magic_setbm,
1444 MGVTBL vtbl_uvar = {magic_getuvar,
1449 MGVTBL vtbl_amagic = {0, magic_setamagic,
1450 0, 0, magic_setamagic};
1451 MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1452 0, 0, magic_setamagic};
1453 #endif /* OVERLOAD */
1457 EXT MGVTBL vtbl_env;
1458 EXT MGVTBL vtbl_envelem;
1459 EXT MGVTBL vtbl_sig;
1460 EXT MGVTBL vtbl_sigelem;
1461 EXT MGVTBL vtbl_pack;
1462 EXT MGVTBL vtbl_packelem;
1463 EXT MGVTBL vtbl_dbline;
1464 EXT MGVTBL vtbl_isa;
1465 EXT MGVTBL vtbl_isaelem;
1466 EXT MGVTBL vtbl_arylen;
1467 EXT MGVTBL vtbl_glob;
1468 EXT MGVTBL vtbl_mglob;
1469 EXT MGVTBL vtbl_taint;
1470 EXT MGVTBL vtbl_substr;
1471 EXT MGVTBL vtbl_vec;
1472 EXT MGVTBL vtbl_pos;
1474 EXT MGVTBL vtbl_uvar;
1477 EXT MGVTBL vtbl_amagic;
1478 EXT MGVTBL vtbl_amagicelem;
1479 #endif /* OVERLOAD */
1484 EXT long amagic_generation;
1486 #define NofAMmeth 29
1488 EXT char * AMG_names[NofAMmeth][2] = {
1490 {"bool", "nomethod"},
1520 EXT char * AMG_names[NofAMmeth][2];
1521 #endif /* def INITAMAGIC */
1526 CV* table[NofAMmeth*2];
1529 typedef struct am_table AMT;
1531 #define AMGfallNEVER 1
1533 #define AMGfallYES 3
1536 fallback_amg, abs_amg,
1537 bool__amg, nomethod_amg,
1538 string_amg, numer_amg,
1539 add_amg, add_ass_amg,
1540 subtr_amg, subtr_ass_amg,
1541 mult_amg, mult_ass_amg,
1542 div_amg, div_ass_amg,
1543 mod_amg, mod_ass_amg,
1544 pow_amg, pow_ass_amg,
1545 lshift_amg, lshift_ass_amg,
1546 rshift_amg, rshift_ass_amg,
1547 band_amg, band_ass_amg,
1548 bor_amg, bor_ass_amg,
1549 bxor_amg, bxor_ass_amg,
1562 repeat_amg, repeat_ass_amg,
1563 concat_amg, concat_ass_amg,
1566 #endif /* OVERLOAD */
1568 #endif /* Include guard */