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))
650 #define U_V(what) ((UV)(what))
652 I32 cast_i32 _((double));
653 #define I_32(what) (cast_i32((double)(what)))
654 IV cast_iv _((double));
655 #define I_V(what) (cast_iv((double)(what)))
656 UV cast_uv _((double));
657 #define U_V(what) (cast_uv((double)(what)))
671 #define TMPPATH "plXXXXXX"
674 #define TMPPATH "sys$scratch:perl-eXXXXXX"
676 #define TMPPATH "/tmp/perl-eXXXXXX"
681 Uid_t getuid _((void));
682 Uid_t geteuid _((void));
683 Gid_t getgid _((void));
684 Gid_t getegid _((void));
690 #define DEBUG(a) if (debug) a
691 #define DEBUG_p(a) if (debug & 1) a
692 #define DEBUG_s(a) if (debug & 2) a
693 #define DEBUG_l(a) if (debug & 4) a
694 #define DEBUG_t(a) if (debug & 8) a
695 #define DEBUG_o(a) if (debug & 16) a
696 #define DEBUG_c(a) if (debug & 32) a
697 #define DEBUG_P(a) if (debug & 64) a
698 #define DEBUG_m(a) if (debug & 128) a
699 #define DEBUG_f(a) if (debug & 256) a
700 #define DEBUG_r(a) if (debug & 512) a
701 #define DEBUG_x(a) if (debug & 1024) a
702 #define DEBUG_u(a) if (debug & 2048) a
703 #define DEBUG_L(a) if (debug & 4096) a
704 #define DEBUG_H(a) if (debug & 8192) a
705 #define DEBUG_X(a) if (debug & 16384) a
706 #define DEBUG_D(a) if (debug & 32768) a
727 #define YYMAXDEPTH 300
729 #define assert(what) DEB( { \
731 croak("Assertion failed: file \"%s\", line %d", \
732 __FILE__, __LINE__); \
737 I32 (*uf_val)_((IV, SV*));
738 I32 (*uf_set)_((IV, SV*));
742 /* Fix these up for __STDC__ */
744 char *mktemp _((char*));
745 double atof _((const char*));
749 /* All of these are in stdlib.h or time.h for ANSI C */
751 struct tm *gmtime(), *localtime();
752 char *strchr(), *strrchr();
753 char *strcpy(), *strcat();
754 #endif /* ! STANDARD_C */
763 double exp _((double));
764 double log _((double));
765 double sqrt _((double));
766 double modf _((double,double*));
767 double sin _((double));
768 double cos _((double));
769 double atan2 _((double,double));
770 double pow _((double,double));
777 char *crypt _((const char*, const char*));
778 char *getenv _((const char*));
779 Off_t lseek _((int,Off_t,int));
780 char *getlogin _((void));
785 I32 unlnk _((char*));
787 #define UNLINK unlink
791 # ifdef HAS_SETRESUID
792 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
793 # define HAS_SETREUID
797 # ifdef HAS_SETRESGID
798 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
799 # define HAS_SETREGID
811 # define PAD_SV(po) pad_sv(po)
813 # define PAD_SV(po) curpad[po]
821 EXT PerlInterpreter * curinterp; /* currently running interpreter */
822 #ifndef VMS /* VMS doesn't use environ array */
823 extern char ** environ; /* environment variables supplied via exec */
825 EXT int uid; /* current real user id */
826 EXT int euid; /* current effective user id */
827 EXT int gid; /* current real group id */
828 EXT int egid; /* current effective group id */
829 EXT bool nomemok; /* let malloc context handle nomem */
830 EXT U32 an; /* malloc sequence number */
831 EXT U32 cop_seqmax; /* statement sequence number */
832 EXT U32 op_seqmax; /* op sequence number */
833 EXT U32 evalseq; /* eval sequence number */
834 EXT U32 sub_generation; /* inc to force methods to be looked up again */
835 EXT char ** origenviron;
837 EXT U32 * profiledata;
839 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
840 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
841 EXT double * xnv_root; /* free xnv list--shared by interpreters */
842 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
843 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
845 /* Stack for currently executing thread--context switch must handle this. */
846 EXT SV ** stack_base; /* stack->array_ary */
847 EXT SV ** stack_sp; /* stack pointer now */
848 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
850 /* likewise for these */
852 EXT OP * op; /* current op--oughta be in a global register */
854 EXT I32 * scopestack; /* blocks we've entered */
855 EXT I32 scopestack_ix;
856 EXT I32 scopestack_max;
858 EXT ANY* savestack; /* to save non-local values on */
859 EXT I32 savestack_ix;
860 EXT I32 savestack_max;
862 EXT OP ** retstack; /* returns we've pushed */
864 EXT I32 retstack_max;
866 EXT I32 * markstack; /* stackmarks we're remembering */
867 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
868 EXT I32 * markstack_max; /* stackmarks we're remembering */
876 EXT char tokenbuf[256];
877 EXT struct stat statbuf;
879 EXT struct tms timesbuf;
881 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
883 /* for tmp use in stupid debuggers */
888 /* handy constants */
889 EXT char * Yes INIT("1");
890 EXT char * No INIT("");
891 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
892 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
893 EXT char * vert INIT("|");
895 EXT char warn_uninit[]
896 INIT("Use of uninitialized value");
897 EXT char warn_nosemi[]
898 INIT("Semicolon seems to be missing");
899 EXT char warn_reserved[]
900 INIT("Unquoted string \"%s\" may clash with future reserved word");
902 INIT("Unsuccessful %s on filename containing newline");
903 EXT char no_wrongref[]
904 INIT("Can't use %s ref as %s ref");
906 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
908 INIT("Can't use an undefined value as %s reference");
910 INIT("Modification of non-creatable array value attempted, subscript %d");
912 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
914 INIT("Modification of a read-only value attempted");
916 INIT("Out of memory!\n");
917 EXT char no_security[]
918 INIT("Insecure dependency in %s%s");
919 EXT char no_sock_func[]
920 INIT("Unsupported socket function \"%s\" called");
921 EXT char no_dir_func[]
922 INIT("Unsupported directory function \"%s\" called");
924 INIT("The %s function is unimplemented");
926 INIT("\"my\" variable %s can't be in a package");
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);
1083 EXT cryptswitch_t cryptswitch_fp;
1085 EXT I32 multi_start; /* 1st line of multi-line string */
1086 EXT I32 multi_end; /* last line of multi-line string */
1087 EXT I32 multi_open; /* delimiter of said string */
1088 EXT I32 multi_close; /* delimiter of said string */
1091 EXT I32 error_count; /* how many errors so far, max 10 */
1092 EXT I32 subline; /* line this subroutine began on */
1093 EXT SV * subname; /* name of current subroutine */
1095 EXT CV * compcv; /* currently compiling subroutine */
1096 EXT AV * comppad; /* storage for lexically scoped temporaries */
1097 EXT AV * comppad_name; /* variable names for "my" variables */
1098 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1099 EXT I32 min_intro_pending;/* start of vars to introduce */
1100 EXT I32 max_intro_pending;/* end of vars to introduce */
1101 EXT I32 padix; /* max used index in current "register" pad */
1102 EXT I32 padix_floor; /* how low may inner block reset padix */
1103 EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1106 EXT I32 thisexpr; /* name id for nothing_in_common() */
1107 EXT char * last_uni; /* position of last named-unary operator */
1108 EXT char * last_lop; /* position of last list operator */
1109 EXT OPCODE last_lop_op; /* last list operator */
1110 EXT bool in_my; /* we're compiling a "my" declaration */
1112 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1115 EXT U32 hints; /* various compilation flags */
1117 /* Note: the lowest 8 bits are reserved for
1118 stuffing into op->op_private */
1119 #define HINT_INTEGER 0x00000001
1120 #define HINT_STRICT_REFS 0x00000002
1122 #define HINT_BLOCK_SCOPE 0x00000100
1123 #define HINT_STRICT_SUBS 0x00000200
1124 #define HINT_STRICT_VARS 0x00000400
1126 /**************************************************************************/
1127 /* This regexp stuff is global since it always happens within 1 expr eval */
1128 /**************************************************************************/
1130 EXT char * regprecomp; /* uncompiled string. */
1131 EXT char * regparse; /* Input-scan pointer. */
1132 EXT char * regxend; /* End of input for compile */
1133 EXT I32 regnpar; /* () count. */
1134 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1135 EXT I32 regsize; /* Code size. */
1136 EXT I32 regnaughty; /* How bad is this pattern? */
1137 EXT I32 regsawback; /* Did we see \1, ...? */
1139 EXT char * reginput; /* String-input pointer. */
1140 EXT char * regbol; /* Beginning of input, for ^ check. */
1141 EXT char * regeol; /* End of input, for $ check. */
1142 EXT char ** regstartp; /* Pointer to startp array. */
1143 EXT char ** regendp; /* Ditto for endp. */
1144 EXT U32 * reglastparen; /* Similarly for lastparen. */
1145 EXT char * regtill; /* How far we are required to go. */
1146 EXT U16 regflags; /* are we folding, multilining? */
1147 EXT char regprev; /* char before regbol, \n if none */
1149 /***********************************************/
1150 /* Global only to current interpreter instance */
1151 /***********************************************/
1156 struct interpreter {
1159 #define IINIT(x) INIT(x)
1162 /* pseudo environmental stuff */
1164 IEXT char ** Iorigargv;
1168 IEXT char * Iorigfilename;
1170 IEXT SV * Iwarnhook;
1171 IEXT SV * Iparsehook;
1176 IEXT char Ipatchlevel[6];
1177 IEXT char * Inrs IINIT("\n");
1178 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1179 IEXT I32 Inrslen IINIT(1);
1180 IEXT char * Isplitstr IINIT(" ");
1181 IEXT bool Ipreprocess;
1187 IEXT bool Idoswitches;
1189 IEXT bool Idoextract;
1190 IEXT bool Isawampersand; /* must save all match strings */
1191 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1192 IEXT bool Isawi; /* study must assume case insensitive */
1195 IEXT bool Ido_undump; /* -u or dump seen? */
1196 IEXT char * Iinplace;
1197 IEXT char * Ie_tmpname;
1199 IEXT VOL U32 Idebug;
1201 /* This value may be raised by extensions for testing purposes */
1202 IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
1204 /* magical thingies */
1205 IEXT Time_t Ibasetime; /* $^T */
1206 IEXT SV * Iformfeed; /* $^L */
1207 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1208 IEXT char * Irs IINIT("\n"); /* $/ */
1209 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1210 IEXT STRLEN Irslen IINIT(1);
1212 IEXT char * Iofs; /* $, */
1213 IEXT STRLEN Iofslen;
1214 IEXT char * Iors; /* $\ */
1215 IEXT STRLEN Iorslen;
1216 IEXT char * Iofmt; /* $# */
1217 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1218 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1219 IEXT U32 Istatusvalue; /* $? */
1221 IEXT struct stat Istatcache; /* _ */
1223 IEXT SV * Istatname IINIT(Nullsv);
1225 /* shortcuts to various I/O objects */
1227 IEXT GV * Ilast_in_gv;
1230 IEXT GV * Idefoutgv;
1231 IEXT GV * Iargvoutgv;
1233 /* shortcuts to regexp stuff */
1237 IEXT PMOP * Icurpm; /* what to do \ interps from */
1238 IEXT I32 * Iscreamfirst;
1239 IEXT I32 * Iscreamnext;
1240 IEXT I32 Imaxscream IINIT(-1);
1241 IEXT SV * Ilastscream;
1243 /* shortcuts to debugging objects */
1247 IEXT SV * IDBsingle;
1249 IEXT SV * IDBsignal;
1250 IEXT AV * Ilineary; /* lines of script for debugger */
1251 IEXT AV * Idbargs; /* args to call listed by caller function */
1254 IEXT HV * Idefstash; /* main symbol table */
1255 IEXT HV * Icurstash; /* symbol table for current package */
1256 IEXT HV * Idebstash; /* symbol table for perldb package */
1257 IEXT SV * Icurstname; /* name of current package */
1258 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1259 IEXT AV * Iendav; /* names of END subroutines */
1260 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1261 IEXT AV * Ipadname; /* variable names for "my" variables */
1263 /* memory management */
1264 IEXT SV ** Itmps_stack;
1265 IEXT I32 Itmps_ix IINIT(-1);
1266 IEXT I32 Itmps_floor IINIT(-1);
1268 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1269 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1270 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1271 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1273 /* funky return mechanisms */
1274 IEXT I32 Ilastspbase;
1276 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1278 /* subprocess state */
1279 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1280 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1282 /* internal state */
1283 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1284 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1285 IEXT int Idelaymagic; /* ($<,$>) = ... */
1286 IEXT bool Idirty; /* In the middle of tearing things down? */
1287 IEXT U8 Ilocalizing; /* are we processing a local() list? */
1288 IEXT bool Itainted; /* using variables controlled by $< */
1289 IEXT bool Itainting; /* doing taint checks */
1293 IEXT I32 Idlmax IINIT(128);
1294 IEXT char * Idebname;
1295 IEXT char * Idebdelim;
1297 /* current interpreter roots */
1299 IEXT OP * Imain_root;
1300 IEXT OP * Imain_start;
1301 IEXT OP * Ieval_root;
1302 IEXT OP * Ieval_start;
1304 /* runtime control stuff */
1305 IEXT COP * VOL Icurcop IINIT(&compiling);
1306 IEXT line_t Icopline IINIT(NOLINE);
1307 IEXT CONTEXT * Icxstack;
1308 IEXT I32 Icxstack_ix IINIT(-1);
1309 IEXT I32 Icxstack_max IINIT(128);
1310 IEXT jmp_buf Itop_env;
1314 IEXT AV * Istack; /* THE STACK */
1315 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1316 IEXT SV ** Imystack_base; /* stack->array_ary */
1317 IEXT SV ** Imystack_sp; /* stack pointer now */
1318 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1320 /* format accumulators */
1321 IEXT SV * Iformtarget;
1322 IEXT SV * Ibodytarget;
1323 IEXT SV * Itoptarget;
1325 /* statics moved here for shared library purposes */
1326 IEXT SV Istrchop; /* return value from chop */
1327 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1328 IEXT int Ilastfd; /* what to preserve mode on */
1329 IEXT char * Ioldname; /* what to preserve mode on */
1330 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1331 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1332 IEXT OP * Isortcop; /* user defined sort routine */
1333 IEXT HV * Isortstash; /* which is in some package or other */
1334 IEXT GV * Ifirstgv; /* $a */
1335 IEXT GV * Isecondgv; /* $b */
1336 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1337 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1338 IEXT SV * Imystrk; /* temp key string for do_each() */
1339 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1340 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1341 IEXT I32 Igensym; /* next symbol for getsym() to define */
1342 IEXT bool Ipreambled;
1343 IEXT int Ilaststatval IINIT(-1);
1344 IEXT I32 Ilaststype IINIT(OP_STAT);
1352 struct interpreter {
1370 # include <stdarg.h>
1373 # include <varargs.h>
1380 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1381 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1383 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1384 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1391 /* The following must follow proto.h */
1394 MGVTBL vtbl_sv = {magic_get,
1398 MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1399 MGVTBL vtbl_envelem = {0, magic_setenv,
1402 MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1403 MGVTBL vtbl_sigelem = {0, magic_setsig,
1405 MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1407 MGVTBL vtbl_packelem = {magic_getpack,
1411 MGVTBL vtbl_dbline = {0, magic_setdbline,
1413 MGVTBL vtbl_isa = {0, magic_setisa,
1415 MGVTBL vtbl_isaelem = {0, magic_setisa,
1417 MGVTBL vtbl_arylen = {magic_getarylen,
1420 MGVTBL vtbl_glob = {magic_getglob,
1423 MGVTBL vtbl_mglob = {0, magic_setmglob,
1425 MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1427 MGVTBL vtbl_substr = {0, magic_setsubstr,
1429 MGVTBL vtbl_vec = {0, magic_setvec,
1431 MGVTBL vtbl_pos = {magic_getpos,
1434 MGVTBL vtbl_bm = {0, magic_setbm,
1436 MGVTBL vtbl_uvar = {magic_getuvar,
1441 MGVTBL vtbl_amagic = {0, magic_setamagic,
1442 0, 0, magic_setamagic};
1443 MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1444 0, 0, magic_setamagic};
1445 #endif /* OVERLOAD */
1449 EXT MGVTBL vtbl_env;
1450 EXT MGVTBL vtbl_envelem;
1451 EXT MGVTBL vtbl_sig;
1452 EXT MGVTBL vtbl_sigelem;
1453 EXT MGVTBL vtbl_pack;
1454 EXT MGVTBL vtbl_packelem;
1455 EXT MGVTBL vtbl_dbline;
1456 EXT MGVTBL vtbl_isa;
1457 EXT MGVTBL vtbl_isaelem;
1458 EXT MGVTBL vtbl_arylen;
1459 EXT MGVTBL vtbl_glob;
1460 EXT MGVTBL vtbl_mglob;
1461 EXT MGVTBL vtbl_taint;
1462 EXT MGVTBL vtbl_substr;
1463 EXT MGVTBL vtbl_vec;
1464 EXT MGVTBL vtbl_pos;
1466 EXT MGVTBL vtbl_uvar;
1469 EXT MGVTBL vtbl_amagic;
1470 EXT MGVTBL vtbl_amagicelem;
1471 #endif /* OVERLOAD */
1476 EXT long amagic_generation;
1478 #define NofAMmeth 29
1480 EXT char * AMG_names[NofAMmeth][2] = {
1482 {"bool", "nomethod"},
1512 EXT char * AMG_names[NofAMmeth][2];
1513 #endif /* def INITAMAGIC */
1518 CV* table[NofAMmeth*2];
1521 typedef struct am_table AMT;
1523 #define AMGfallNEVER 1
1525 #define AMGfallYES 3
1528 fallback_amg, abs_amg,
1529 bool__amg, nomethod_amg,
1530 string_amg, numer_amg,
1531 add_amg, add_ass_amg,
1532 subtr_amg, subtr_ass_amg,
1533 mult_amg, mult_ass_amg,
1534 div_amg, div_ass_amg,
1535 mod_amg, mod_ass_amg,
1536 pow_amg, pow_ass_amg,
1537 lshift_amg, lshift_ass_amg,
1538 rshift_amg, rshift_ass_amg,
1539 band_amg, band_ass_amg,
1540 bor_amg, bor_ass_amg,
1541 bxor_amg, bxor_ass_amg,
1554 repeat_amg, repeat_ass_amg,
1555 concat_amg, concat_ass_amg,
1558 #endif /* OVERLOAD */
1560 #endif /* Include guard */