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>
265 extern int errno; /* ANSI allows errno to be an lvalue expr */
271 char *strerror _((int,...));
273 char *strerror _((int));
276 # define Strerror strerror
279 # ifdef HAS_SYS_ERRLIST
281 extern char *sys_errlist[];
283 # define Strerror(e) \
284 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
291 # include <sys/ioctl.h>
295 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
296 # ifdef HAS_SOCKETPAIR
297 # undef HAS_SOCKETPAIR
312 /* Configure already sets Direntry_t */
313 #if defined(I_DIRENT)
315 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
316 # include <sys/dir.h>
320 # include <sys/ndir.h>
324 # include <ndir.h> /* may be wrong in the future */
326 # include <sys/dir.h>
333 /* work around botch in SunOS 4.0.1 and 4.0.2 */
335 # define fputs(sv,fp) fprintf(fp,"%s",sv)
340 * The following gobbledygook brought to you on behalf of __STDC__.
341 * (I could just use #ifndef __STDC__, but this is more bulletproof
342 * in the face of half-implementations.)
347 # define S_IFMT _S_IFMT
349 # define S_IFMT 0170000
354 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
358 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
363 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
365 # define S_ISBLK(m) (0)
370 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
375 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
377 # define S_ISFIFO(m) (0)
383 # define S_ISLNK(m) _S_ISLNK(m)
386 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
389 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
391 # define S_ISLNK(m) (0)
399 # define S_ISSOCK(m) _S_ISSOCK(m)
402 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
405 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
407 # define S_ISSOCK(m) (0)
415 # define S_IRUSR S_IREAD
416 # define S_IWUSR S_IWRITE
417 # define S_IXUSR S_IEXEC
419 # define S_IRUSR 0400
420 # define S_IWUSR 0200
421 # define S_IXUSR 0100
423 # define S_IRGRP (S_IRUSR>>3)
424 # define S_IWGRP (S_IWUSR>>3)
425 # define S_IXGRP (S_IXUSR>>3)
426 # define S_IROTH (S_IRUSR>>6)
427 # define S_IWOTH (S_IWUSR>>6)
428 # define S_IXOTH (S_IXUSR>>6)
432 # define S_ISUID 04000
436 # define S_ISGID 02000
443 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
444 # define SLOPPYDIVIDE
447 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
455 # if defined(convex) || defined (uts)
456 # define Quad_t long long
469 # include "unixish.h"
474 #define pause() sleep((32767<<16)+32767)
479 /* on BSDish systes we're safe */
480 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
482 /* otherwise guess at what's safe */
483 # define IOCPARM_LEN(x) 256
487 typedef MEM_SIZE STRLEN;
489 typedef struct op OP;
490 typedef struct cop COP;
491 typedef struct unop UNOP;
492 typedef struct binop BINOP;
493 typedef struct listop LISTOP;
494 typedef struct logop LOGOP;
495 typedef struct condop CONDOP;
496 typedef struct pmop PMOP;
497 typedef struct svop SVOP;
498 typedef struct gvop GVOP;
499 typedef struct pvop PVOP;
500 typedef struct cvop CVOP;
501 typedef struct loop LOOP;
503 typedef struct Outrec Outrec;
504 typedef struct interpreter PerlInterpreter;
505 typedef struct ff FF;
506 typedef struct sv SV;
507 typedef struct av AV;
508 typedef struct hv HV;
509 typedef struct cv CV;
510 typedef struct regexp REGEXP;
511 typedef struct gp GP;
512 typedef struct sv GV;
513 typedef struct io IO;
514 typedef struct context CONTEXT;
515 typedef struct block BLOCK;
517 typedef struct magic MAGIC;
518 typedef struct xrv XRV;
519 typedef struct xpv XPV;
520 typedef struct xpviv XPVIV;
521 typedef struct xpvnv XPVNV;
522 typedef struct xpvmg XPVMG;
523 typedef struct xpvlv XPVLV;
524 typedef struct xpvav XPVAV;
525 typedef struct xpvhv XPVHV;
526 typedef struct xpvgv XPVGV;
527 typedef struct xpvcv XPVCV;
528 typedef struct xpvbm XPVBM;
529 typedef struct xpvfm XPVFM;
530 typedef struct xpvio XPVIO;
531 typedef struct mgvtbl MGVTBL;
532 typedef union any ANY;
534 typedef FILE * (*cryptswitch_t) _((FILE *rfp));
549 void (*any_dptr) _((void*));
566 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
570 #if defined(htonl) && !defined(HAS_HTONL)
573 #if defined(htons) && !defined(HAS_HTONS)
576 #if defined(ntohl) && !defined(HAS_NTOHL)
579 #if defined(ntohs) && !defined(HAS_NTOHS)
583 #if (BYTEORDER & 0xffff) != 0x4321
589 #define htons my_swap
590 #define htonl my_htonl
591 #define ntohs my_swap
592 #define ntohl my_ntohl
595 #if (BYTEORDER & 0xffff) == 0x4321
604 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
607 #if BYTEORDER != 0x1234
612 # if BYTEORDER == 0x4321
613 # define vtohl(x) ((((x)&0xFF)<<24) \
615 +(((x)&0x0000FF00)<<8) \
616 +(((x)&0x00FF0000)>>8) )
617 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
618 # define htovl(x) vtohl(x)
619 # define htovs(x) vtohs(x)
621 /* otherwise default to functions in util.c */
625 #define U_S(what) ((U16)(what))
626 #define U_I(what) ((unsigned int)(what))
627 #define U_L(what) ((U32)(what))
629 U32 cast_ulong _((double));
630 #define U_S(what) ((U16)cast_ulong(what))
631 #define U_I(what) ((unsigned int)cast_ulong(what))
632 #define U_L(what) (cast_ulong(what))
636 #define I_32(what) ((I32)(what))
637 #define I_V(what) ((IV)(what))
639 I32 cast_i32 _((double));
640 #define I_32(what) (cast_i32(what))
641 IV cast_iv _((double));
642 #define I_V(what) (cast_iv(what))
656 #define TMPPATH "plXXXXXX"
659 #define TMPPATH "/sys$scratch/perl-eXXXXXX"
661 #define TMPPATH "/tmp/perl-eXXXXXX"
666 Uid_t getuid _((void));
667 Uid_t geteuid _((void));
668 Gid_t getgid _((void));
669 Gid_t getegid _((void));
675 #define DEBUG(a) if (debug) a
676 #define DEBUG_p(a) if (debug & 1) a
677 #define DEBUG_s(a) if (debug & 2) a
678 #define DEBUG_l(a) if (debug & 4) a
679 #define DEBUG_t(a) if (debug & 8) a
680 #define DEBUG_o(a) if (debug & 16) a
681 #define DEBUG_c(a) if (debug & 32) a
682 #define DEBUG_P(a) if (debug & 64) a
683 #define DEBUG_m(a) if (debug & 128) a
684 #define DEBUG_f(a) if (debug & 256) a
685 #define DEBUG_r(a) if (debug & 512) a
686 #define DEBUG_x(a) if (debug & 1024) a
687 #define DEBUG_u(a) if (debug & 2048) a
688 #define DEBUG_L(a) if (debug & 4096) a
689 #define DEBUG_H(a) if (debug & 8192) a
690 #define DEBUG_X(a) if (debug & 16384) a
691 #define DEBUG_D(a) if (debug & 32768) a
712 #define YYMAXDEPTH 300
714 #define assert(what) DEB( { \
716 croak("Assertion failed: file \"%s\", line %d", \
717 __FILE__, __LINE__); \
722 I32 (*uf_val)_((IV, SV*));
723 I32 (*uf_set)_((IV, SV*));
727 /* Fix these up for __STDC__ */
729 char *mktemp _((char*));
730 double atof _((const char*));
734 /* All of these are in stdlib.h or time.h for ANSI C */
736 struct tm *gmtime(), *localtime();
737 char *strchr(), *strrchr();
738 char *strcpy(), *strcat();
739 #endif /* ! STANDARD_C */
748 double exp _((double));
749 double fmod _((double,double));
750 double log _((double));
751 double sqrt _((double));
752 double modf _((double,double*));
753 double sin _((double));
754 double cos _((double));
755 double atan2 _((double,double));
756 double pow _((double,double));
764 # define fmod(x,y) drem((x),(y))
767 # define fmod(x,y) my_fmod(x,y)
772 char *crypt _((const char*, const char*));
773 char *getenv _((const char*));
774 Off_t lseek _((int,Off_t,int));
775 char *getlogin _((void));
780 I32 unlnk _((char*));
782 #define UNLINK unlink
786 # ifdef HAS_SETRESUID
787 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
788 # define HAS_SETREUID
792 # ifdef HAS_SETRESGID
793 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
794 # define HAS_SETREGID
806 # define PAD_SV(po) pad_sv(po)
808 # define PAD_SV(po) curpad[po]
816 EXT PerlInterpreter * curinterp; /* currently running interpreter */
817 #ifndef VMS /* VMS doesn't use environ array */
818 extern char ** environ; /* environment variables supplied via exec */
820 EXT int uid; /* current real user id */
821 EXT int euid; /* current effective user id */
822 EXT int gid; /* current real group id */
823 EXT int egid; /* current effective group id */
824 EXT bool nomemok; /* let malloc context handle nomem */
825 EXT U32 an; /* malloc sequence number */
826 EXT U32 cop_seqmax; /* statement sequence number */
827 EXT U32 op_seqmax; /* op sequence number */
828 EXT U32 evalseq; /* eval sequence number */
829 EXT U32 sub_generation; /* inc to force methods to be looked up again */
830 EXT char ** origenviron;
832 EXT U32 * profiledata;
834 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
835 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
836 EXT double * xnv_root; /* free xnv list--shared by interpreters */
837 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
838 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
840 /* Stack for currently executing thread--context switch must handle this. */
841 EXT SV ** stack_base; /* stack->array_ary */
842 EXT SV ** stack_sp; /* stack pointer now */
843 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
845 /* likewise for these */
847 EXT OP * op; /* current op--oughta be in a global register */
849 EXT I32 * scopestack; /* blocks we've entered */
850 EXT I32 scopestack_ix;
851 EXT I32 scopestack_max;
853 EXT ANY* savestack; /* to save non-local values on */
854 EXT I32 savestack_ix;
855 EXT I32 savestack_max;
857 EXT OP ** retstack; /* returns we've pushed */
859 EXT I32 retstack_max;
861 EXT I32 * markstack; /* stackmarks we're remembering */
862 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
863 EXT I32 * markstack_max; /* stackmarks we're remembering */
871 EXT char tokenbuf[256];
872 EXT struct stat statbuf;
874 EXT struct tms timesbuf;
876 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
878 /* for tmp use in stupid debuggers */
883 /* handy constants */
884 EXT char * Yes INIT("1");
885 EXT char * No INIT("");
886 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
887 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
888 EXT char * vert INIT("|");
890 EXT char warn_uninit[]
891 INIT("Use of uninitialized value");
892 EXT char warn_nosemi[]
893 INIT("Semicolon seems to be missing");
894 EXT char warn_reserved[]
895 INIT("Unquoted string \"%s\" may clash with future reserved word");
897 INIT("Unsuccessful %s on filename containing newline");
898 EXT char no_wrongref[]
899 INIT("Can't use %s ref as %s ref");
901 INIT("Can't use a string as %s ref while \"strict refs\" in use");
903 INIT("Can't use an undefined value as %s reference");
905 INIT("Modification of non-creatable array value attempted, subscript %d");
907 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
909 INIT("Modification of a read-only value attempted");
911 INIT("Out of memory!\n");
912 EXT char no_security[]
913 INIT("Insecure dependency in %s%s");
914 EXT char no_sock_func[]
915 INIT("Unsupported socket function \"%s\" called");
916 EXT char no_dir_func[]
917 INIT("Unsupported directory function \"%s\" called");
919 INIT("The %s function is unimplemented");
925 EXT char * cshname INIT(CSH);
930 EXT char *sig_name[] = {
934 EXT char *sig_name[];
938 EXT unsigned char fold[] = { /* fast case folding table */
939 0, 1, 2, 3, 4, 5, 6, 7,
940 8, 9, 10, 11, 12, 13, 14, 15,
941 16, 17, 18, 19, 20, 21, 22, 23,
942 24, 25, 26, 27, 28, 29, 30, 31,
943 32, 33, 34, 35, 36, 37, 38, 39,
944 40, 41, 42, 43, 44, 45, 46, 47,
945 48, 49, 50, 51, 52, 53, 54, 55,
946 56, 57, 58, 59, 60, 61, 62, 63,
947 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
948 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
949 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
950 'x', 'y', 'z', 91, 92, 93, 94, 95,
951 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
952 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
953 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
954 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
955 128, 129, 130, 131, 132, 133, 134, 135,
956 136, 137, 138, 139, 140, 141, 142, 143,
957 144, 145, 146, 147, 148, 149, 150, 151,
958 152, 153, 154, 155, 156, 157, 158, 159,
959 160, 161, 162, 163, 164, 165, 166, 167,
960 168, 169, 170, 171, 172, 173, 174, 175,
961 176, 177, 178, 179, 180, 181, 182, 183,
962 184, 185, 186, 187, 188, 189, 190, 191,
963 192, 193, 194, 195, 196, 197, 198, 199,
964 200, 201, 202, 203, 204, 205, 206, 207,
965 208, 209, 210, 211, 212, 213, 214, 215,
966 216, 217, 218, 219, 220, 221, 222, 223,
967 224, 225, 226, 227, 228, 229, 230, 231,
968 232, 233, 234, 235, 236, 237, 238, 239,
969 240, 241, 242, 243, 244, 245, 246, 247,
970 248, 249, 250, 251, 252, 253, 254, 255
973 EXT unsigned char fold[];
977 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
978 1, 2, 84, 151, 154, 155, 156, 157,
979 165, 246, 250, 3, 158, 7, 18, 29,
980 40, 51, 62, 73, 85, 96, 107, 118,
981 129, 140, 147, 148, 149, 150, 152, 153,
982 255, 182, 224, 205, 174, 176, 180, 217,
983 233, 232, 236, 187, 235, 228, 234, 226,
984 222, 219, 211, 195, 188, 193, 185, 184,
985 191, 183, 201, 229, 181, 220, 194, 162,
986 163, 208, 186, 202, 200, 218, 198, 179,
987 178, 214, 166, 170, 207, 199, 209, 206,
988 204, 160, 212, 216, 215, 192, 175, 173,
989 243, 172, 161, 190, 203, 189, 164, 230,
990 167, 248, 227, 244, 242, 255, 241, 231,
991 240, 253, 169, 210, 245, 237, 249, 247,
992 239, 168, 252, 251, 254, 238, 223, 221,
993 213, 225, 177, 197, 171, 196, 159, 4,
994 5, 6, 8, 9, 10, 11, 12, 13,
995 14, 15, 16, 17, 19, 20, 21, 22,
996 23, 24, 25, 26, 27, 28, 30, 31,
997 32, 33, 34, 35, 36, 37, 38, 39,
998 41, 42, 43, 44, 45, 46, 47, 48,
999 49, 50, 52, 53, 54, 55, 56, 57,
1000 58, 59, 60, 61, 63, 64, 65, 66,
1001 67, 68, 69, 70, 71, 72, 74, 75,
1002 76, 77, 78, 79, 80, 81, 82, 83,
1003 86, 87, 88, 89, 90, 91, 92, 93,
1004 94, 95, 97, 98, 99, 100, 101, 102,
1005 103, 104, 105, 106, 108, 109, 110, 111,
1006 112, 113, 114, 115, 116, 117, 119, 120,
1007 121, 122, 123, 124, 125, 126, 127, 128,
1008 130, 131, 132, 133, 134, 135, 136, 137,
1009 138, 139, 141, 142, 143, 144, 145, 146
1012 EXT unsigned char freq[];
1017 EXT char* block_type[] = {
1026 EXT char* block_type[];
1030 /*****************************************************************************/
1031 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1032 /*****************************************************************************/
1033 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1046 EXT U32 lex_state; /* next token is determined */
1047 EXT U32 lex_defer; /* state after determined token */
1048 EXT expectation lex_expect; /* expect after determined token */
1049 EXT I32 lex_brackets; /* bracket count */
1050 EXT I32 lex_formbrack; /* bracket count at outer format level */
1051 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1052 EXT I32 lex_casemods; /* casemod count */
1053 EXT I32 lex_dojoin; /* doing an array interpolation */
1054 EXT I32 lex_starts; /* how many interps done on level */
1055 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1056 EXT SV * lex_repl; /* runtime replacement from s/// */
1057 EXT OP * lex_op; /* extra info to pass back on op */
1058 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1059 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1060 EXT char * lex_brackstack; /* what kind of brackets to pop */
1061 EXT char * lex_casestack; /* what kind of case mods in effect */
1063 /* What we know when we're in LEX_KNOWNEXT state. */
1064 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1065 EXT I32 nexttype[5]; /* type of next token */
1068 EXT FILE * VOL rsfp INIT(Nullfp);
1071 EXT char * oldbufptr;
1072 EXT char * oldoldbufptr;
1074 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1075 EXT char * autoboot_preamble INIT(Nullch);
1077 EXT I32 multi_start; /* 1st line of multi-line string */
1078 EXT I32 multi_end; /* last line of multi-line string */
1079 EXT I32 multi_open; /* delimiter of said string */
1080 EXT I32 multi_close; /* delimiter of said string */
1083 EXT I32 error_count; /* how many errors so far, max 10 */
1084 EXT I32 subline; /* line this subroutine began on */
1085 EXT SV * subname; /* name of current subroutine */
1087 EXT AV * comppad; /* storage for lexically scoped temporaries */
1088 EXT AV * comppad_name; /* variable names for "my" variables */
1089 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1090 EXT I32 min_intro_pending;/* start of vars to introduce */
1091 EXT I32 max_intro_pending;/* end of vars to introduce */
1092 EXT I32 padix; /* max used index in current "register" pad */
1093 EXT I32 padix_floor; /* how low may inner block reset padix */
1094 EXT bool pad_reset_pending; /* reset pad on next attempted alloc */
1097 EXT I32 thisexpr; /* name id for nothing_in_common() */
1098 EXT char * last_uni; /* position of last named-unary operator */
1099 EXT char * last_lop; /* position of last list operator */
1100 EXT OPCODE last_lop_op; /* last list operator */
1101 EXT bool in_my; /* we're compiling a "my" declaration */
1103 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1106 EXT U32 hints; /* various compilation flags */
1108 /* Note: the lowest 8 bits are reserved for
1109 stuffing into op->op_private */
1110 #define HINT_INTEGER 0x00000001
1111 #define HINT_STRICT_REFS 0x00000002
1113 #define HINT_BLOCK_SCOPE 0x00000100
1114 #define HINT_STRICT_SUBS 0x00000200
1115 #define HINT_STRICT_VARS 0x00000400
1117 /**************************************************************************/
1118 /* This regexp stuff is global since it always happens within 1 expr eval */
1119 /**************************************************************************/
1121 EXT char * regprecomp; /* uncompiled string. */
1122 EXT char * regparse; /* Input-scan pointer. */
1123 EXT char * regxend; /* End of input for compile */
1124 EXT I32 regnpar; /* () count. */
1125 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1126 EXT I32 regsize; /* Code size. */
1127 EXT I32 regnaughty; /* How bad is this pattern? */
1128 EXT I32 regsawback; /* Did we see \1, ...? */
1130 EXT char * reginput; /* String-input pointer. */
1131 EXT char * regbol; /* Beginning of input, for ^ check. */
1132 EXT char * regeol; /* End of input, for $ check. */
1133 EXT char ** regstartp; /* Pointer to startp array. */
1134 EXT char ** regendp; /* Ditto for endp. */
1135 EXT U32 * reglastparen; /* Similarly for lastparen. */
1136 EXT char * regtill; /* How far we are required to go. */
1137 EXT U16 regflags; /* are we folding, multilining? */
1138 EXT char regprev; /* char before regbol, \n if none */
1140 /***********************************************/
1141 /* Global only to current interpreter instance */
1142 /***********************************************/
1147 struct interpreter {
1150 #define IINIT(x) INIT(x)
1153 /* pseudo environmental stuff */
1155 IEXT char ** Iorigargv;
1159 IEXT char * Iorigfilename;
1164 IEXT char Ipatchlevel[6];
1165 IEXT char * Inrs IINIT("\n");
1166 IEXT U32 Inrschar IINIT('\n'); /* final char of rs, or 0777 if none */
1167 IEXT I32 Inrslen IINIT(1);
1168 IEXT char * Isplitstr IINIT(" ");
1169 IEXT bool Ipreprocess;
1175 IEXT bool Idoswitches;
1177 IEXT bool Idoextract;
1178 IEXT bool Isawampersand; /* must save all match strings */
1179 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1180 IEXT bool Isawi; /* study must assume case insensitive */
1183 IEXT bool Ido_undump; /* -u or dump seen? */
1184 IEXT char * Iinplace;
1185 IEXT char * Ie_tmpname;
1187 IEXT VOL U32 Idebug;
1190 /* magical thingies */
1191 IEXT Time_t Ibasetime; /* $^T */
1192 IEXT SV * Iformfeed; /* $^L */
1193 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1194 IEXT char * Irs IINIT("\n"); /* $/ */
1195 IEXT U32 Irschar IINIT('\n'); /* final char of rs, or 0777 if none */
1196 IEXT STRLEN Irslen IINIT(1);
1198 IEXT char * Iofs; /* $, */
1199 IEXT STRLEN Iofslen;
1200 IEXT char * Iors; /* $\ */
1201 IEXT STRLEN Iorslen;
1202 IEXT char * Iofmt; /* $# */
1203 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1204 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1205 IEXT U16 Istatusvalue; /* $? */
1207 IEXT struct stat Istatcache; /* _ */
1209 IEXT SV * Istatname IINIT(Nullsv);
1211 /* shortcuts to various I/O objects */
1213 IEXT GV * Ilast_in_gv;
1216 IEXT GV * Idefoutgv;
1217 IEXT GV * Iargvoutgv;
1219 /* shortcuts to regexp stuff */
1223 IEXT PMOP * Icurpm; /* what to do \ interps from */
1224 IEXT I32 * Iscreamfirst;
1225 IEXT I32 * Iscreamnext;
1226 IEXT I32 Imaxscream IINIT(-1);
1227 IEXT SV * Ilastscream;
1229 /* shortcuts to debugging objects */
1233 IEXT SV * IDBsingle;
1235 IEXT SV * IDBsignal;
1236 IEXT AV * Ilineary; /* lines of script for debugger */
1237 IEXT AV * Idbargs; /* args to call listed by caller function */
1240 IEXT HV * Idefstash; /* main symbol table */
1241 IEXT HV * Icurstash; /* symbol table for current package */
1242 IEXT HV * Idebstash; /* symbol table for perldb package */
1243 IEXT SV * Icurstname; /* name of current package */
1244 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1245 IEXT AV * Iendav; /* names of END subroutines */
1246 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1247 IEXT AV * Ipadname; /* variable names for "my" variables */
1249 /* memory management */
1250 IEXT SV ** Itmps_stack;
1251 IEXT I32 Itmps_ix IINIT(-1);
1252 IEXT I32 Itmps_floor IINIT(-1);
1254 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1255 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1256 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1257 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1259 /* funky return mechanisms */
1260 IEXT I32 Ilastspbase;
1262 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1264 /* subprocess state */
1265 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1266 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1268 /* internal state */
1269 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1270 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1271 IEXT int Idelaymagic; /* ($<,$>) = ... */
1272 IEXT bool Idirty; /* In the middle of tearing things down? */
1273 IEXT bool Ilocalizing; /* are we processing a local() list? */
1274 IEXT bool Itainted; /* using variables controlled by $< */
1275 IEXT bool Itainting; /* doing taint checks */
1279 IEXT I32 Idlmax IINIT(128);
1280 IEXT char * Idebname;
1281 IEXT char * Idebdelim;
1283 /* current interpreter roots */
1284 IEXT OP * Imain_root;
1285 IEXT OP * Imain_start;
1286 IEXT OP * Ieval_root;
1287 IEXT OP * Ieval_start;
1289 /* runtime control stuff */
1290 IEXT COP * VOL Icurcop IINIT(&compiling);
1291 IEXT line_t Icopline IINIT(NOLINE);
1292 IEXT CONTEXT * Icxstack;
1293 IEXT I32 Icxstack_ix IINIT(-1);
1294 IEXT I32 Icxstack_max IINIT(128);
1295 IEXT jmp_buf Itop_env;
1299 IEXT AV * Istack; /* THE STACK */
1300 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1301 IEXT SV ** Imystack_base; /* stack->array_ary */
1302 IEXT SV ** Imystack_sp; /* stack pointer now */
1303 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1305 /* format accumulators */
1306 IEXT SV * Iformtarget;
1307 IEXT SV * Ibodytarget;
1308 IEXT SV * Itoptarget;
1310 /* statics moved here for shared library purposes */
1311 IEXT SV Istrchop; /* return value from chop */
1312 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1313 IEXT int Ilastfd; /* what to preserve mode on */
1314 IEXT char * Ioldname; /* what to preserve mode on */
1315 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1316 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1317 IEXT OP * Isortcop; /* user defined sort routine */
1318 IEXT HV * Isortstash; /* which is in some package or other */
1319 IEXT GV * Ifirstgv; /* $a */
1320 IEXT GV * Isecondgv; /* $b */
1321 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1322 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1323 IEXT SV * Imystrk; /* temp key string for do_each() */
1324 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1325 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1326 IEXT I32 Igensym; /* next symbol for getsym() to define */
1327 IEXT bool Ipreambled;
1328 IEXT int Ilaststatval IINIT(-1);
1329 IEXT I32 Ilaststype IINIT(OP_STAT);
1337 struct interpreter {
1355 # include <stdarg.h>
1358 # include <varargs.h>
1365 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1366 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1368 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1369 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1376 /* The following must follow proto.h */
1379 MGVTBL vtbl_sv = {magic_get,
1383 MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1384 MGVTBL vtbl_envelem = {0, magic_setenv,
1387 MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1388 MGVTBL vtbl_sigelem = {0, magic_setsig,
1390 MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1392 MGVTBL vtbl_packelem = {magic_getpack,
1396 MGVTBL vtbl_dbline = {0, magic_setdbline,
1398 MGVTBL vtbl_isa = {0, magic_setisa,
1400 MGVTBL vtbl_isaelem = {0, magic_setisa,
1402 MGVTBL vtbl_arylen = {magic_getarylen,
1405 MGVTBL vtbl_glob = {magic_getglob,
1408 MGVTBL vtbl_mglob = {0, magic_setmglob,
1410 MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1412 MGVTBL vtbl_substr = {0, magic_setsubstr,
1414 MGVTBL vtbl_vec = {0, magic_setvec,
1416 MGVTBL vtbl_pos = {magic_getpos,
1419 MGVTBL vtbl_bm = {0, magic_setbm,
1421 MGVTBL vtbl_uvar = {magic_getuvar,
1426 MGVTBL vtbl_amagic = {0, magic_setamagic,
1428 MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1430 #endif /* OVERLOAD */
1434 EXT MGVTBL vtbl_env;
1435 EXT MGVTBL vtbl_envelem;
1436 EXT MGVTBL vtbl_sig;
1437 EXT MGVTBL vtbl_sigelem;
1438 EXT MGVTBL vtbl_pack;
1439 EXT MGVTBL vtbl_packelem;
1440 EXT MGVTBL vtbl_dbline;
1441 EXT MGVTBL vtbl_isa;
1442 EXT MGVTBL vtbl_isaelem;
1443 EXT MGVTBL vtbl_arylen;
1444 EXT MGVTBL vtbl_glob;
1445 EXT MGVTBL vtbl_mglob;
1446 EXT MGVTBL vtbl_taint;
1447 EXT MGVTBL vtbl_substr;
1448 EXT MGVTBL vtbl_vec;
1449 EXT MGVTBL vtbl_pos;
1451 EXT MGVTBL vtbl_uvar;
1454 EXT MGVTBL vtbl_amagic;
1455 EXT MGVTBL vtbl_amagicelem;
1456 #endif /* OVERLOAD */
1461 EXT long amagic_generation;
1463 #define NofAMmeth 27
1465 EXT char * AMG_names[NofAMmeth][2] = {
1467 {"bool", "nomethod"},
1495 EXT char * AMG_names[NofAMmeth][2];
1496 #endif /* def INITAMAGIC */
1501 CV* table[NofAMmeth*2];
1504 typedef struct am_table AMT;
1506 #define AMGfallNEVER 1
1508 #define AMGfallYES 3
1511 fallback_amg, abs_amg,
1512 bool__amg, nomethod_amg,
1513 string_amg, numer_amg,
1514 add_amg, add_ass_amg,
1515 subtr_amg, subtr_ass_amg,
1516 mult_amg, mult_ass_amg,
1517 div_amg, div_ass_amg,
1518 mod_amg, mod_ass_amg,
1519 pow_amg, pow_ass_amg,
1520 lshift_amg, lshift_ass_amg,
1521 rshift_amg, rshift_ass_amg,
1536 repeat_amg, repeat_ass_amg,
1537 concat_amg, concat_ass_amg
1539 #endif /* OVERLOAD */
1541 #endif /* Include guard */