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...
35 /* define this once if either system, instead of cluttering up the src */
36 #if defined(MSDOS) || defined(atarist)
40 #if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
44 #if defined(HASVOLATILE) || defined(STANDARD_C)
46 # define VOL // to temporarily suppress warnings
54 #define TAINT_IF(c) (tainted |= (c))
55 #define TAINT_NOT (tainted = 0)
56 #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
57 #define TAINT_ENV() if (tainting) taint_env()
73 #include <appkit/NXCType.h>
82 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
89 # ifdef PARAM_NEEDS_TYPES
90 # include <sys/types.h>
92 # include <sys/param.h>
96 /* Use all the "standard" definitions? */
97 #if defined(STANDARD_C) && defined(I_STDLIB)
99 #endif /* STANDARD_C */
101 /* Maybe this comes after <stdlib.h> so we don't try to change
102 the standard library prototypes?. We'll use our own in
103 proto.h instead. I guess. The patch had no explanation.
107 # define malloc Mymalloc
108 # define realloc Myremalloc
111 # define safemalloc malloc
112 # define saferealloc realloc
113 # define safefree free
116 #define MEM_SIZE Size_t
118 #if defined(I_STRING) || defined(__cplusplus)
121 # include <strings.h>
124 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
126 #define strrchr rindex
129 #if defined(mips) && defined(ultrix) && !defined(__STDC__)
138 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
140 extern char * memcpy _((char*, char*, int));
146 # define memcpy(d,s,l) bcopy(s,d,l)
148 # define memcpy(d,s,l) my_bcopy(s,d,l)
151 #endif /* HAS_MEMCPY */
154 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
156 extern char *memset _((char*, int, int));
159 # define memzero(d,l) memset(d,0,l)
163 # define memzero(d,l) bzero(d,l)
165 # define memzero(d,l) my_bzero(d,l)
168 #endif /* HAS_MEMSET */
171 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
173 extern int memcmp _((char*, char*, int));
178 # define memcmp my_memcmp
180 #endif /* HAS_MEMCMP */
182 /* we prefer bcmp slightly for comparisons that don't care about ordering */
185 # define bcmp(s1,s2,l) memcmp(s1,s2,l)
187 #endif /* HAS_BCMP */
189 #if !defined(HAS_MEMMOVE) && !defined(memmove)
190 # if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
191 # define memmove(d,s,l) bcopy(s,d,l)
193 # if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
194 # define memmove(d,s,l) memcpy(d,s,l)
196 # define memmove(d,s,l) my_bcopy(s,d,l)
201 #ifndef _TYPES_ /* If types.h defines this it's easy. */
202 # ifndef major /* Does everyone's types.h define this? */
203 # include <sys/types.h>
208 # include <netinet/in.h>
212 #include <sys/stat.h>
215 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
216 like UTekV) are broken, sometimes giving false positives. Undefine
217 them here and let the code below set them to proper values.
219 The ghs macro stands for GreenHills Software C-1.8.5 which
220 is the C compiler for sysV88 and the various derivatives.
221 This header file bug is corrected in gcc-2.5.8 and later versions.
222 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
224 #if defined(uts) || (defined(m88k) && defined(ghs))
238 # ifdef I_SYS_TIME_KERNEL
241 # include <sys/time.h>
242 # ifdef I_SYS_TIME_KERNEL
248 # if defined(HAS_TIMES) && defined(I_SYS_TIMES)
249 # include <sys/times.h>
253 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
259 # define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
261 #endif /* !HAS_MKFIFO */
266 # include <net/errno.h>
270 # define FIXSTATUS(sts) (U_L((sts) & 0xffff))
271 # define SHIFTSTATUS(sts) ((sts) >> 8)
272 # define SETERRNO(errcode,vmserrcode) errno = (errcode)
274 # define FIXSTATUS(sts) (U_L(sts))
275 # define SHIFTSTATUS(sts) (sts)
276 # define SETERRNO(errcode,vmserrcode) {set_errno(errcode); set_vaxc_errno(vmserrcode);}
281 extern int errno; /* ANSI allows errno to be an lvalue expr */
287 char *strerror _((int,...));
289 char *strerror _((int));
292 # define Strerror strerror
295 # ifdef HAS_SYS_ERRLIST
297 extern char *sys_errlist[];
299 # define Strerror(e) \
300 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
307 # include <sys/ioctl.h>
311 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
312 # ifdef HAS_SOCKETPAIR
313 # undef HAS_SOCKETPAIR
328 /* Configure already sets Direntry_t */
329 #if defined(I_DIRENT)
331 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
332 # include <sys/dir.h>
336 # include <sys/ndir.h>
340 # include <ndir.h> /* may be wrong in the future */
342 # include <sys/dir.h>
349 /* work around botch in SunOS 4.0.1 and 4.0.2 */
351 # define fputs(sv,fp) fprintf(fp,"%s",sv)
356 * The following gobbledygook brought to you on behalf of __STDC__.
357 * (I could just use #ifndef __STDC__, but this is more bulletproof
358 * in the face of half-implementations.)
363 # define S_IFMT _S_IFMT
365 # define S_IFMT 0170000
370 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
374 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
379 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
381 # define S_ISBLK(m) (0)
386 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
391 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
393 # define S_ISFIFO(m) (0)
399 # define S_ISLNK(m) _S_ISLNK(m)
402 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
405 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
407 # define S_ISLNK(m) (0)
415 # define S_ISSOCK(m) _S_ISSOCK(m)
418 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
421 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
423 # define S_ISSOCK(m) (0)
431 # define S_IRUSR S_IREAD
432 # define S_IWUSR S_IWRITE
433 # define S_IXUSR S_IEXEC
435 # define S_IRUSR 0400
436 # define S_IWUSR 0200
437 # define S_IXUSR 0100
439 # define S_IRGRP (S_IRUSR>>3)
440 # define S_IWGRP (S_IWUSR>>3)
441 # define S_IXGRP (S_IXUSR>>3)
442 # define S_IROTH (S_IRUSR>>6)
443 # define S_IWOTH (S_IWUSR>>6)
444 # define S_IXOTH (S_IXUSR>>6)
448 # define S_ISUID 04000
452 # define S_ISGID 02000
459 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
460 # define SLOPPYDIVIDE
463 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
475 # if defined(convex) || defined (uts)
476 # define Quad_t long long
482 typedef unsigned Quad_t UV;
485 typedef unsigned long UV;
488 typedef MEM_SIZE STRLEN;
490 typedef struct op OP;
491 typedef struct cop COP;
492 typedef struct unop UNOP;
493 typedef struct binop BINOP;
494 typedef struct listop LISTOP;
495 typedef struct logop LOGOP;
496 typedef struct condop CONDOP;
497 typedef struct pmop PMOP;
498 typedef struct svop SVOP;
499 typedef struct gvop GVOP;
500 typedef struct pvop PVOP;
501 typedef struct cvop CVOP;
502 typedef struct loop LOOP;
504 typedef struct Outrec Outrec;
505 typedef struct interpreter PerlInterpreter;
506 typedef struct ff FF;
507 typedef struct sv SV;
508 typedef struct av AV;
509 typedef struct hv HV;
510 typedef struct cv CV;
511 typedef struct regexp REGEXP;
512 typedef struct gp GP;
513 typedef struct sv GV;
514 typedef struct io IO;
515 typedef struct context CONTEXT;
516 typedef struct block BLOCK;
518 typedef struct magic MAGIC;
519 typedef struct xrv XRV;
520 typedef struct xpv XPV;
521 typedef struct xpviv XPVIV;
522 typedef struct xpvnv XPVNV;
523 typedef struct xpvmg XPVMG;
524 typedef struct xpvlv XPVLV;
525 typedef struct xpvav XPVAV;
526 typedef struct xpvhv XPVHV;
527 typedef struct xpvgv XPVGV;
528 typedef struct xpvcv XPVCV;
529 typedef struct xpvbm XPVBM;
530 typedef struct xpvfm XPVFM;
531 typedef struct xpvio XPVIO;
532 typedef struct mgvtbl MGVTBL;
533 typedef union any ANY;
537 typedef I32 (*filter_t) _((int, SV *, int));
538 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
539 #define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
540 #define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
552 # include "unixish.h"
557 #define pause() sleep((32767<<16)+32767)
562 /* on BSDish systes we're safe */
563 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
565 /* otherwise guess at what's safe */
566 # define IOCPARM_LEN(x) 256
575 void (*any_dptr) _((void*));
592 /* work around some libPW problems */
597 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
601 #if defined(htonl) && !defined(HAS_HTONL)
604 #if defined(htons) && !defined(HAS_HTONS)
607 #if defined(ntohl) && !defined(HAS_NTOHL)
610 #if defined(ntohs) && !defined(HAS_NTOHS)
614 #if (BYTEORDER & 0xffff) != 0x4321
620 #define htons my_swap
621 #define htonl my_htonl
622 #define ntohs my_swap
623 #define ntohl my_ntohl
626 #if (BYTEORDER & 0xffff) == 0x4321
635 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
638 #if BYTEORDER != 0x1234
643 # if BYTEORDER == 0x4321
644 # define vtohl(x) ((((x)&0xFF)<<24) \
646 +(((x)&0x0000FF00)<<8) \
647 +(((x)&0x00FF0000)>>8) )
648 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
649 # define htovl(x) vtohl(x)
650 # define htovs(x) vtohs(x)
652 /* otherwise default to functions in util.c */
656 #define U_S(what) ((U16)(what))
657 #define U_I(what) ((unsigned int)(what))
658 #define U_L(what) ((U32)(what))
660 U32 cast_ulong _((double));
661 #define U_S(what) ((U16)cast_ulong((double)(what)))
662 #define U_I(what) ((unsigned int)cast_ulong((double)(what)))
663 #define U_L(what) (cast_ulong((double)(what)))
667 #define I_32(what) ((I32)(what))
668 #define I_V(what) ((IV)(what))
669 #define U_V(what) ((UV)(what))
671 I32 cast_i32 _((double));
672 #define I_32(what) (cast_i32((double)(what)))
673 IV cast_iv _((double));
674 #define I_V(what) (cast_iv((double)(what)))
675 UV cast_uv _((double));
676 #define U_V(what) (cast_uv((double)(what)))
690 #define TMPPATH "plXXXXXX"
693 #define TMPPATH "sys$scratch:perl-eXXXXXX"
695 #define TMPPATH "/tmp/perl-eXXXXXX"
700 Uid_t getuid _((void));
701 Uid_t geteuid _((void));
702 Gid_t getgid _((void));
703 Gid_t getegid _((void));
709 #define DEBUG(a) if (debug) a
710 #define DEBUG_p(a) if (debug & 1) a
711 #define DEBUG_s(a) if (debug & 2) a
712 #define DEBUG_l(a) if (debug & 4) a
713 #define DEBUG_t(a) if (debug & 8) a
714 #define DEBUG_o(a) if (debug & 16) a
715 #define DEBUG_c(a) if (debug & 32) a
716 #define DEBUG_P(a) if (debug & 64) a
717 #define DEBUG_m(a) if (debug & 128) a
718 #define DEBUG_f(a) if (debug & 256) a
719 #define DEBUG_r(a) if (debug & 512) a
720 #define DEBUG_x(a) if (debug & 1024) a
721 #define DEBUG_u(a) if (debug & 2048) a
722 #define DEBUG_L(a) if (debug & 4096) a
723 #define DEBUG_H(a) if (debug & 8192) a
724 #define DEBUG_X(a) if (debug & 16384) a
725 #define DEBUG_D(a) if (debug & 32768) a
746 #define YYMAXDEPTH 300
748 #define assert(what) DEB( { \
750 croak("Assertion failed: file \"%s\", line %d", \
751 __FILE__, __LINE__); \
756 I32 (*uf_val)_((IV, SV*));
757 I32 (*uf_set)_((IV, SV*));
761 /* Fix these up for __STDC__ */
763 char *mktemp _((char*));
764 double atof _((const char*));
768 /* All of these are in stdlib.h or time.h for ANSI C */
770 struct tm *gmtime(), *localtime();
771 char *strchr(), *strrchr();
772 char *strcpy(), *strcat();
773 #endif /* ! STANDARD_C */
782 double exp _((double));
783 double log _((double));
784 double sqrt _((double));
785 double modf _((double,double*));
786 double sin _((double));
787 double cos _((double));
788 double atan2 _((double,double));
789 double pow _((double,double));
796 char *crypt _((const char*, const char*));
797 char *getenv _((const char*));
798 Off_t lseek _((int,Off_t,int));
799 char *getlogin _((void));
802 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
804 I32 unlnk _((char*));
806 #define UNLINK unlink
810 # ifdef HAS_SETRESUID
811 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
812 # define HAS_SETREUID
816 # ifdef HAS_SETRESGID
817 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
818 # define HAS_SETREGID
830 # define PAD_SV(po) pad_sv(po)
832 # define PAD_SV(po) curpad[po]
840 EXT PerlInterpreter * curinterp; /* currently running interpreter */
841 #ifndef VMS /* VMS doesn't use environ array */
842 extern char ** environ; /* environment variables supplied via exec */
844 EXT int uid; /* current real user id */
845 EXT int euid; /* current effective user id */
846 EXT int gid; /* current real group id */
847 EXT int egid; /* current effective group id */
848 EXT bool nomemok; /* let malloc context handle nomem */
849 EXT U32 an; /* malloc sequence number */
850 EXT U32 cop_seqmax; /* statement sequence number */
851 EXT U32 op_seqmax; /* op sequence number */
852 EXT U32 evalseq; /* eval sequence number */
853 EXT U32 sub_generation; /* inc to force methods to be looked up again */
854 EXT char ** origenviron;
856 EXT U32 * profiledata;
858 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
859 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
860 EXT double * xnv_root; /* free xnv list--shared by interpreters */
861 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
862 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
863 EXT HE * he_root; /* free he list--shared by interpreters */
865 /* Stack for currently executing thread--context switch must handle this. */
866 EXT SV ** stack_base; /* stack->array_ary */
867 EXT SV ** stack_sp; /* stack pointer now */
868 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
870 /* likewise for these */
872 EXT OP * op; /* current op--oughta be in a global register */
874 EXT I32 * scopestack; /* blocks we've entered */
875 EXT I32 scopestack_ix;
876 EXT I32 scopestack_max;
878 EXT ANY* savestack; /* to save non-local values on */
879 EXT I32 savestack_ix;
880 EXT I32 savestack_max;
882 EXT OP ** retstack; /* returns we've pushed */
884 EXT I32 retstack_max;
886 EXT I32 * markstack; /* stackmarks we're remembering */
887 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
888 EXT I32 * markstack_max; /* stackmarks we're remembering */
896 EXT char tokenbuf[256];
897 EXT struct stat statbuf;
899 EXT struct tms timesbuf;
901 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
903 /* for tmp use in stupid debuggers */
908 /* handy constants */
909 EXT char * Yes INIT("1");
910 EXT char * No INIT("");
911 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
912 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
913 EXT char * vert INIT("|");
915 EXT char warn_uninit[]
916 INIT("Use of uninitialized value");
917 EXT char warn_nosemi[]
918 INIT("Semicolon seems to be missing");
919 EXT char warn_reserved[]
920 INIT("Unquoted string \"%s\" may clash with future reserved word");
922 INIT("Unsuccessful %s on filename containing newline");
923 EXT char no_wrongref[]
924 INIT("Can't use %s ref as %s ref");
926 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
928 INIT("Can't use an undefined value as %s reference");
930 INIT("Modification of non-creatable array value attempted, subscript %d");
932 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
934 INIT("Modification of a read-only value attempted");
936 INIT("Out of memory!\n");
937 EXT char no_security[]
938 INIT("Insecure dependency in %s%s");
939 EXT char no_sock_func[]
940 INIT("Unsupported socket function \"%s\" called");
941 EXT char no_dir_func[]
942 INIT("Unsupported directory function \"%s\" called");
944 INIT("The %s function is unimplemented");
946 INIT("\"my\" variable %s can't be in a package");
952 EXT char * cshname INIT(CSH);
957 EXT char *sig_name[] = { SIG_NAME };
958 EXT int sig_num[] = { SIG_NUM };
960 EXT char *sig_name[];
965 EXT unsigned char fold[] = { /* fast case folding table */
966 0, 1, 2, 3, 4, 5, 6, 7,
967 8, 9, 10, 11, 12, 13, 14, 15,
968 16, 17, 18, 19, 20, 21, 22, 23,
969 24, 25, 26, 27, 28, 29, 30, 31,
970 32, 33, 34, 35, 36, 37, 38, 39,
971 40, 41, 42, 43, 44, 45, 46, 47,
972 48, 49, 50, 51, 52, 53, 54, 55,
973 56, 57, 58, 59, 60, 61, 62, 63,
974 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
975 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
976 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
977 'x', 'y', 'z', 91, 92, 93, 94, 95,
978 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
979 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
980 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
981 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
982 128, 129, 130, 131, 132, 133, 134, 135,
983 136, 137, 138, 139, 140, 141, 142, 143,
984 144, 145, 146, 147, 148, 149, 150, 151,
985 152, 153, 154, 155, 156, 157, 158, 159,
986 160, 161, 162, 163, 164, 165, 166, 167,
987 168, 169, 170, 171, 172, 173, 174, 175,
988 176, 177, 178, 179, 180, 181, 182, 183,
989 184, 185, 186, 187, 188, 189, 190, 191,
990 192, 193, 194, 195, 196, 197, 198, 199,
991 200, 201, 202, 203, 204, 205, 206, 207,
992 208, 209, 210, 211, 212, 213, 214, 215,
993 216, 217, 218, 219, 220, 221, 222, 223,
994 224, 225, 226, 227, 228, 229, 230, 231,
995 232, 233, 234, 235, 236, 237, 238, 239,
996 240, 241, 242, 243, 244, 245, 246, 247,
997 248, 249, 250, 251, 252, 253, 254, 255
1000 EXT unsigned char fold[];
1004 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
1005 1, 2, 84, 151, 154, 155, 156, 157,
1006 165, 246, 250, 3, 158, 7, 18, 29,
1007 40, 51, 62, 73, 85, 96, 107, 118,
1008 129, 140, 147, 148, 149, 150, 152, 153,
1009 255, 182, 224, 205, 174, 176, 180, 217,
1010 233, 232, 236, 187, 235, 228, 234, 226,
1011 222, 219, 211, 195, 188, 193, 185, 184,
1012 191, 183, 201, 229, 181, 220, 194, 162,
1013 163, 208, 186, 202, 200, 218, 198, 179,
1014 178, 214, 166, 170, 207, 199, 209, 206,
1015 204, 160, 212, 216, 215, 192, 175, 173,
1016 243, 172, 161, 190, 203, 189, 164, 230,
1017 167, 248, 227, 244, 242, 255, 241, 231,
1018 240, 253, 169, 210, 245, 237, 249, 247,
1019 239, 168, 252, 251, 254, 238, 223, 221,
1020 213, 225, 177, 197, 171, 196, 159, 4,
1021 5, 6, 8, 9, 10, 11, 12, 13,
1022 14, 15, 16, 17, 19, 20, 21, 22,
1023 23, 24, 25, 26, 27, 28, 30, 31,
1024 32, 33, 34, 35, 36, 37, 38, 39,
1025 41, 42, 43, 44, 45, 46, 47, 48,
1026 49, 50, 52, 53, 54, 55, 56, 57,
1027 58, 59, 60, 61, 63, 64, 65, 66,
1028 67, 68, 69, 70, 71, 72, 74, 75,
1029 76, 77, 78, 79, 80, 81, 82, 83,
1030 86, 87, 88, 89, 90, 91, 92, 93,
1031 94, 95, 97, 98, 99, 100, 101, 102,
1032 103, 104, 105, 106, 108, 109, 110, 111,
1033 112, 113, 114, 115, 116, 117, 119, 120,
1034 121, 122, 123, 124, 125, 126, 127, 128,
1035 130, 131, 132, 133, 134, 135, 136, 137,
1036 138, 139, 141, 142, 143, 144, 145, 146
1039 EXT unsigned char freq[];
1044 EXT char* block_type[] = {
1053 EXT char* block_type[];
1057 /*****************************************************************************/
1058 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1059 /*****************************************************************************/
1060 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1073 EXT U32 lex_state; /* next token is determined */
1074 EXT U32 lex_defer; /* state after determined token */
1075 EXT expectation lex_expect; /* expect after determined token */
1076 EXT I32 lex_brackets; /* bracket count */
1077 EXT I32 lex_formbrack; /* bracket count at outer format level */
1078 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1079 EXT I32 lex_casemods; /* casemod count */
1080 EXT I32 lex_dojoin; /* doing an array interpolation */
1081 EXT I32 lex_starts; /* how many interps done on level */
1082 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1083 EXT SV * lex_repl; /* runtime replacement from s/// */
1084 EXT OP * lex_op; /* extra info to pass back on op */
1085 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1086 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1087 EXT char * lex_brackstack; /* what kind of brackets to pop */
1088 EXT char * lex_casestack; /* what kind of case mods in effect */
1090 /* What we know when we're in LEX_KNOWNEXT state. */
1091 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1092 EXT I32 nexttype[5]; /* type of next token */
1095 EXT FILE * VOL rsfp INIT(Nullfp);
1098 EXT char * oldbufptr;
1099 EXT char * oldoldbufptr;
1101 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1102 EXT char * autoboot_preamble INIT(Nullch);
1103 EXT AV * rsfp_filters;
1105 EXT I32 multi_start; /* 1st line of multi-line string */
1106 EXT I32 multi_end; /* last line of multi-line string */
1107 EXT I32 multi_open; /* delimiter of said string */
1108 EXT I32 multi_close; /* delimiter of said string */
1111 EXT I32 error_count; /* how many errors so far, max 10 */
1112 EXT I32 subline; /* line this subroutine began on */
1113 EXT SV * subname; /* name of current subroutine */
1115 EXT CV * compcv; /* currently compiling subroutine */
1116 EXT AV * comppad; /* storage for lexically scoped temporaries */
1117 EXT AV * comppad_name; /* variable names for "my" variables */
1118 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1119 EXT I32 min_intro_pending;/* start of vars to introduce */
1120 EXT I32 max_intro_pending;/* end of vars to introduce */
1121 EXT I32 padix; /* max used index in current "register" pad */
1122 EXT I32 padix_floor; /* how low may inner block reset padix */
1123 EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1126 EXT I32 thisexpr; /* name id for nothing_in_common() */
1127 EXT char * last_uni; /* position of last named-unary operator */
1128 EXT char * last_lop; /* position of last list operator */
1129 EXT OPCODE last_lop_op; /* last list operator */
1130 EXT bool in_my; /* we're compiling a "my" declaration */
1132 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1135 EXT U32 hints; /* various compilation flags */
1137 /* Note: the lowest 8 bits are reserved for
1138 stuffing into op->op_private */
1139 #define HINT_INTEGER 0x00000001
1140 #define HINT_STRICT_REFS 0x00000002
1142 #define HINT_BLOCK_SCOPE 0x00000100
1143 #define HINT_STRICT_SUBS 0x00000200
1144 #define HINT_STRICT_VARS 0x00000400
1146 /**************************************************************************/
1147 /* This regexp stuff is global since it always happens within 1 expr eval */
1148 /**************************************************************************/
1150 EXT char * regprecomp; /* uncompiled string. */
1151 EXT char * regparse; /* Input-scan pointer. */
1152 EXT char * regxend; /* End of input for compile */
1153 EXT I32 regnpar; /* () count. */
1154 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1155 EXT I32 regsize; /* Code size. */
1156 EXT I32 regnaughty; /* How bad is this pattern? */
1157 EXT I32 regsawback; /* Did we see \1, ...? */
1159 EXT char * reginput; /* String-input pointer. */
1160 EXT char * regbol; /* Beginning of input, for ^ check. */
1161 EXT char * regeol; /* End of input, for $ check. */
1162 EXT char ** regstartp; /* Pointer to startp array. */
1163 EXT char ** regendp; /* Ditto for endp. */
1164 EXT U32 * reglastparen; /* Similarly for lastparen. */
1165 EXT char * regtill; /* How far we are required to go. */
1166 EXT U16 regflags; /* are we folding, multilining? */
1167 EXT char regprev; /* char before regbol, \n if none */
1169 /***********************************************/
1170 /* Global only to current interpreter instance */
1171 /***********************************************/
1176 struct interpreter {
1179 #define IINIT(x) INIT(x)
1182 /* pseudo environmental stuff */
1184 IEXT char ** Iorigargv;
1188 IEXT char * Iorigfilename;
1190 IEXT SV * Iwarnhook;
1191 IEXT SV * Iparsehook;
1196 IEXT char Ipatchlevel[6];
1197 IEXT char * Inrs IINIT("\n");
1198 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1199 IEXT I32 Inrslen IINIT(1);
1200 IEXT char * Isplitstr IINIT(" ");
1201 IEXT bool Ipreprocess;
1207 IEXT bool Idoswitches;
1209 IEXT bool Idoextract;
1210 IEXT bool Isawampersand; /* must save all match strings */
1211 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1212 IEXT bool Isawi; /* study must assume case insensitive */
1215 IEXT bool Ido_undump; /* -u or dump seen? */
1216 IEXT char * Iinplace;
1217 IEXT char * Ie_tmpname;
1219 IEXT VOL U32 Idebug;
1221 /* This value may be raised by extensions for testing purposes */
1222 IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
1224 /* magical thingies */
1225 IEXT Time_t Ibasetime; /* $^T */
1226 IEXT SV * Iformfeed; /* $^L */
1227 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1228 IEXT char * Irs IINIT("\n"); /* $/ */
1229 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1230 IEXT STRLEN Irslen IINIT(1);
1232 IEXT char * Iofs; /* $, */
1233 IEXT STRLEN Iofslen;
1234 IEXT char * Iors; /* $\ */
1235 IEXT STRLEN Iorslen;
1236 IEXT char * Iofmt; /* $# */
1237 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1238 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1239 IEXT U32 Istatusvalue; /* $? */
1241 IEXT struct stat Istatcache; /* _ */
1243 IEXT SV * Istatname IINIT(Nullsv);
1245 /* shortcuts to various I/O objects */
1247 IEXT GV * Ilast_in_gv;
1250 IEXT GV * Idefoutgv;
1251 IEXT GV * Iargvoutgv;
1253 /* shortcuts to regexp stuff */
1257 IEXT PMOP * Icurpm; /* what to do \ interps from */
1258 IEXT I32 * Iscreamfirst;
1259 IEXT I32 * Iscreamnext;
1260 IEXT I32 Imaxscream IINIT(-1);
1261 IEXT SV * Ilastscream;
1263 /* shortcuts to misc objects */
1266 /* shortcuts to debugging objects */
1270 IEXT SV * IDBsingle;
1272 IEXT SV * IDBsignal;
1273 IEXT AV * Ilineary; /* lines of script for debugger */
1274 IEXT AV * Idbargs; /* args to call listed by caller function */
1277 IEXT HV * Idefstash; /* main symbol table */
1278 IEXT HV * Icurstash; /* symbol table for current package */
1279 IEXT HV * Idebstash; /* symbol table for perldb package */
1280 IEXT SV * Icurstname; /* name of current package */
1281 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1282 IEXT AV * Iendav; /* names of END subroutines */
1283 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1284 IEXT AV * Ipadname; /* variable names for "my" variables */
1286 /* memory management */
1287 IEXT SV ** Itmps_stack;
1288 IEXT I32 Itmps_ix IINIT(-1);
1289 IEXT I32 Itmps_floor IINIT(-1);
1291 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1292 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1293 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1294 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1296 /* funky return mechanisms */
1297 IEXT I32 Ilastspbase;
1299 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1301 /* subprocess state */
1302 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1303 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1305 /* internal state */
1306 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1307 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1308 IEXT int Idelaymagic; /* ($<,$>) = ... */
1309 IEXT bool Idirty; /* In the middle of tearing things down? */
1310 IEXT U8 Ilocalizing; /* are we processing a local() list? */
1311 IEXT bool Itainted; /* using variables controlled by $< */
1312 IEXT bool Itainting; /* doing taint checks */
1313 IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
1317 IEXT I32 Idlmax IINIT(128);
1318 IEXT char * Idebname;
1319 IEXT char * Idebdelim;
1321 /* current interpreter roots */
1323 IEXT OP * Imain_root;
1324 IEXT OP * Imain_start;
1325 IEXT OP * Ieval_root;
1326 IEXT OP * Ieval_start;
1328 /* runtime control stuff */
1329 IEXT COP * VOL Icurcop IINIT(&compiling);
1330 IEXT line_t Icopline IINIT(NOLINE);
1331 IEXT CONTEXT * Icxstack;
1332 IEXT I32 Icxstack_ix IINIT(-1);
1333 IEXT I32 Icxstack_max IINIT(128);
1334 IEXT jmp_buf Itop_env;
1338 IEXT AV * Istack; /* THE STACK */
1339 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1340 IEXT SV ** Imystack_base; /* stack->array_ary */
1341 IEXT SV ** Imystack_sp; /* stack pointer now */
1342 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1344 /* format accumulators */
1345 IEXT SV * Iformtarget;
1346 IEXT SV * Ibodytarget;
1347 IEXT SV * Itoptarget;
1349 /* statics moved here for shared library purposes */
1350 IEXT SV Istrchop; /* return value from chop */
1351 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1352 IEXT int Ilastfd; /* what to preserve mode on */
1353 IEXT char * Ioldname; /* what to preserve mode on */
1354 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1355 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1356 IEXT OP * Isortcop; /* user defined sort routine */
1357 IEXT HV * Isortstash; /* which is in some package or other */
1358 IEXT GV * Ifirstgv; /* $a */
1359 IEXT GV * Isecondgv; /* $b */
1360 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1361 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1362 IEXT SV * Imystrk; /* temp key string for do_each() */
1363 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1364 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1365 IEXT I32 Igensym; /* next symbol for getsym() to define */
1366 IEXT bool Ipreambled;
1367 IEXT int Ilaststatval IINIT(-1);
1368 IEXT I32 Ilaststype IINIT(OP_STAT);
1376 struct interpreter {
1394 # include <stdarg.h>
1397 # include <varargs.h>
1404 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1405 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1407 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1408 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1415 /* The following must follow proto.h */
1418 EXT MGVTBL vtbl_sv = {magic_get,
1422 EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1423 EXT MGVTBL vtbl_envelem = {0, magic_setenv,
1426 EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1427 EXT MGVTBL vtbl_sigelem = {0, magic_setsig,
1429 EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1431 EXT MGVTBL vtbl_packelem = {magic_getpack,
1435 EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
1437 EXT MGVTBL vtbl_isa = {0, magic_setisa,
1439 EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
1441 EXT MGVTBL vtbl_arylen = {magic_getarylen,
1444 EXT MGVTBL vtbl_glob = {magic_getglob,
1447 EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
1449 EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1451 EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
1453 EXT MGVTBL vtbl_vec = {0, magic_setvec,
1455 EXT MGVTBL vtbl_pos = {magic_getpos,
1458 EXT MGVTBL vtbl_bm = {0, magic_setbm,
1460 EXT MGVTBL vtbl_uvar = {magic_getuvar,
1465 EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
1466 0, 0, magic_setamagic};
1467 EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1468 0, 0, magic_setamagic};
1469 #endif /* OVERLOAD */
1473 EXT MGVTBL vtbl_env;
1474 EXT MGVTBL vtbl_envelem;
1475 EXT MGVTBL vtbl_sig;
1476 EXT MGVTBL vtbl_sigelem;
1477 EXT MGVTBL vtbl_pack;
1478 EXT MGVTBL vtbl_packelem;
1479 EXT MGVTBL vtbl_dbline;
1480 EXT MGVTBL vtbl_isa;
1481 EXT MGVTBL vtbl_isaelem;
1482 EXT MGVTBL vtbl_arylen;
1483 EXT MGVTBL vtbl_glob;
1484 EXT MGVTBL vtbl_mglob;
1485 EXT MGVTBL vtbl_taint;
1486 EXT MGVTBL vtbl_substr;
1487 EXT MGVTBL vtbl_vec;
1488 EXT MGVTBL vtbl_pos;
1490 EXT MGVTBL vtbl_uvar;
1493 EXT MGVTBL vtbl_amagic;
1494 EXT MGVTBL vtbl_amagicelem;
1495 #endif /* OVERLOAD */
1500 EXT long amagic_generation;
1502 #define NofAMmeth 29
1504 EXT char * AMG_names[NofAMmeth][2] = {
1506 {"bool", "nomethod"},
1536 EXT char * AMG_names[NofAMmeth][2];
1537 #endif /* def INITAMAGIC */
1542 CV* table[NofAMmeth*2];
1545 typedef struct am_table AMT;
1547 #define AMGfallNEVER 1
1549 #define AMGfallYES 3
1552 fallback_amg, abs_amg,
1553 bool__amg, nomethod_amg,
1554 string_amg, numer_amg,
1555 add_amg, add_ass_amg,
1556 subtr_amg, subtr_ass_amg,
1557 mult_amg, mult_ass_amg,
1558 div_amg, div_ass_amg,
1559 mod_amg, mod_ass_amg,
1560 pow_amg, pow_ass_amg,
1561 lshift_amg, lshift_ass_amg,
1562 rshift_amg, rshift_ass_amg,
1563 band_amg, band_ass_amg,
1564 bor_amg, bor_ass_amg,
1565 bxor_amg, bxor_ass_amg,
1578 repeat_amg, repeat_ass_amg,
1579 concat_amg, concat_ass_amg,
1582 #endif /* OVERLOAD */
1584 #endif /* Include guard */