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()
59 #if defined(HAS_GETPGRP2) && defined(HAS_SETPGRP2)
60 # define getpgrp getpgrp2
61 # define setpgrp setpgrp2
72 # if defined(HAS_GETPGRP2) || defined(HAS_SETPGRP2)
73 #include "Gack, you have one but not both of getpgrp2() and setpgrp2()."
79 #include <appkit/NXCType.h>
88 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
95 # ifdef PARAM_NEEDS_TYPES
96 # include <sys/types.h>
98 # include <sys/param.h>
102 /* Use all the "standard" definitions? */
103 #if defined(STANDARD_C) && defined(I_STDLIB)
105 #endif /* STANDARD_C */
107 /* Maybe this comes after <stdlib.h> so we don't try to change
108 the standard library prototypes?. We'll use our own in
109 proto.h instead. I guess. The patch had no explanation.
113 # define malloc Mymalloc
114 # define realloc Myremalloc
117 # define safemalloc malloc
118 # define saferealloc realloc
119 # define safefree free
122 #define MEM_SIZE Size_t
124 #if defined(I_STRING) || defined(__cplusplus)
127 # include <strings.h>
130 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
132 #define strrchr rindex
135 #if defined(mips) && defined(ultrix) && !defined(__STDC__)
144 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
146 extern char * memcpy _((char*, char*, int));
152 # define memcpy(d,s,l) bcopy(s,d,l)
154 # define memcpy(d,s,l) my_bcopy(s,d,l)
157 #endif /* HAS_MEMCPY */
160 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
162 extern char *memset _((char*, int, int));
165 # define memzero(d,l) memset(d,0,l)
169 # define memzero(d,l) bzero(d,l)
171 # define memzero(d,l) my_bzero(d,l)
174 #endif /* HAS_MEMSET */
177 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
179 extern int memcmp _((char*, char*, int));
184 # define memcmp my_memcmp
186 #endif /* HAS_MEMCMP */
188 /* we prefer bcmp slightly for comparisons that don't care about ordering */
191 # define bcmp(s1,s2,l) memcmp(s1,s2,l)
193 #endif /* HAS_BCMP */
195 #if !defined(HAS_MEMMOVE) && !defined(memmove)
196 # if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
197 # define memmove(d,s,l) bcopy(s,d,l)
199 # if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
200 # define memmove(d,s,l) memcpy(d,s,l)
202 # define memmove(d,s,l) my_bcopy(s,d,l)
207 #ifndef _TYPES_ /* If types.h defines this it's easy. */
208 # ifndef major /* Does everyone's types.h define this? */
209 # include <sys/types.h>
214 # include <netinet/in.h>
218 #include <sys/stat.h>
221 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
222 like UTekV) are broken, sometimes giving false positives. Undefine
223 them here and let the code below set them to proper values.
225 The ghs macro stands for GreenHills Software C-1.8.5 which
226 is the C compiler for sysV88 and the various derivatives.
227 This header file bug is corrected in gcc-2.5.8 and later versions.
228 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
230 #if defined(uts) || (defined(m88k) && defined(ghs))
244 # ifdef I_SYS_TIME_KERNEL
247 # include <sys/time.h>
248 # ifdef I_SYS_TIME_KERNEL
254 # if defined(HAS_TIMES) && defined(I_SYS_TIMES)
255 # include <sys/times.h>
259 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
265 # define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
267 #endif /* !HAS_MKFIFO */
272 # include <net/errno.h>
276 # define FIXSTATUS(sts) (U_L((sts) & 0xffff))
277 # define SHIFTSTATUS(sts) ((sts) >> 8)
278 # define SETERRNO(errcode,vmserrcode) errno = (errcode)
280 # define FIXSTATUS(sts) (U_L(sts))
281 # define SHIFTSTATUS(sts) (sts)
282 # define SETERRNO(errcode,vmserrcode) {set_errno(errcode); set_vaxc_errno(vmserrcode);}
287 extern int errno; /* ANSI allows errno to be an lvalue expr */
293 char *strerror _((int,...));
295 char *strerror _((int));
298 # define Strerror strerror
301 # ifdef HAS_SYS_ERRLIST
303 extern char *sys_errlist[];
305 # define Strerror(e) \
306 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
313 # include <sys/ioctl.h>
317 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
318 # ifdef HAS_SOCKETPAIR
319 # undef HAS_SOCKETPAIR
334 /* Configure already sets Direntry_t */
335 #if defined(I_DIRENT)
337 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
338 # include <sys/dir.h>
342 # include <sys/ndir.h>
346 # include <ndir.h> /* may be wrong in the future */
348 # include <sys/dir.h>
355 /* work around botch in SunOS 4.0.1 and 4.0.2 */
357 # define fputs(sv,fp) fprintf(fp,"%s",sv)
362 * The following gobbledygook brought to you on behalf of __STDC__.
363 * (I could just use #ifndef __STDC__, but this is more bulletproof
364 * in the face of half-implementations.)
369 # define S_IFMT _S_IFMT
371 # define S_IFMT 0170000
376 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
380 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
385 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
387 # define S_ISBLK(m) (0)
392 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
397 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
399 # define S_ISFIFO(m) (0)
405 # define S_ISLNK(m) _S_ISLNK(m)
408 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
411 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
413 # define S_ISLNK(m) (0)
421 # define S_ISSOCK(m) _S_ISSOCK(m)
424 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
427 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
429 # define S_ISSOCK(m) (0)
437 # define S_IRUSR S_IREAD
438 # define S_IWUSR S_IWRITE
439 # define S_IXUSR S_IEXEC
441 # define S_IRUSR 0400
442 # define S_IWUSR 0200
443 # define S_IXUSR 0100
445 # define S_IRGRP (S_IRUSR>>3)
446 # define S_IWGRP (S_IWUSR>>3)
447 # define S_IXGRP (S_IXUSR>>3)
448 # define S_IROTH (S_IRUSR>>6)
449 # define S_IWOTH (S_IWUSR>>6)
450 # define S_IXOTH (S_IXUSR>>6)
454 # define S_ISUID 04000
458 # define S_ISGID 02000
465 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
466 # define SLOPPYDIVIDE
469 #if defined(cray) || defined(convex) || defined (uts) || BYTEORDER > 0xffff
481 # if defined(convex) || defined (uts)
482 # define Quad_t long long
488 typedef unsigned Quad_t UV;
491 typedef unsigned long UV;
494 typedef MEM_SIZE STRLEN;
496 typedef struct op OP;
497 typedef struct cop COP;
498 typedef struct unop UNOP;
499 typedef struct binop BINOP;
500 typedef struct listop LISTOP;
501 typedef struct logop LOGOP;
502 typedef struct condop CONDOP;
503 typedef struct pmop PMOP;
504 typedef struct svop SVOP;
505 typedef struct gvop GVOP;
506 typedef struct pvop PVOP;
507 typedef struct loop LOOP;
509 typedef struct Outrec Outrec;
510 typedef struct interpreter PerlInterpreter;
511 typedef struct ff FF;
512 typedef struct sv SV;
513 typedef struct av AV;
514 typedef struct hv HV;
515 typedef struct cv CV;
516 typedef struct regexp REGEXP;
517 typedef struct gp GP;
518 typedef struct sv GV;
519 typedef struct io IO;
520 typedef struct context CONTEXT;
521 typedef struct block BLOCK;
523 typedef struct magic MAGIC;
524 typedef struct xrv XRV;
525 typedef struct xpv XPV;
526 typedef struct xpviv XPVIV;
527 typedef struct xpvnv XPVNV;
528 typedef struct xpvmg XPVMG;
529 typedef struct xpvlv XPVLV;
530 typedef struct xpvav XPVAV;
531 typedef struct xpvhv XPVHV;
532 typedef struct xpvgv XPVGV;
533 typedef struct xpvcv XPVCV;
534 typedef struct xpvbm XPVBM;
535 typedef struct xpvfm XPVFM;
536 typedef struct xpvio XPVIO;
537 typedef struct mgvtbl MGVTBL;
538 typedef union any ANY;
542 typedef I32 (*filter_t) _((int, SV *, int));
543 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
544 #define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
545 #define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
557 # include "unixish.h"
562 #define pause() sleep((32767<<16)+32767)
567 /* on BSDish systes we're safe */
568 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
570 /* otherwise guess at what's safe */
571 # define IOCPARM_LEN(x) 256
580 void (*any_dptr) _((void*));
597 /* work around some libPW problems */
602 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
606 #if defined(htonl) && !defined(HAS_HTONL)
609 #if defined(htons) && !defined(HAS_HTONS)
612 #if defined(ntohl) && !defined(HAS_NTOHL)
615 #if defined(ntohs) && !defined(HAS_NTOHS)
619 #if (BYTEORDER & 0xffff) != 0x4321
625 #define htons my_swap
626 #define htonl my_htonl
627 #define ntohs my_swap
628 #define ntohl my_ntohl
631 #if (BYTEORDER & 0xffff) == 0x4321
640 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
643 #if BYTEORDER != 0x1234
648 # if BYTEORDER == 0x4321
649 # define vtohl(x) ((((x)&0xFF)<<24) \
651 +(((x)&0x0000FF00)<<8) \
652 +(((x)&0x00FF0000)>>8) )
653 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
654 # define htovl(x) vtohl(x)
655 # define htovs(x) vtohs(x)
657 /* otherwise default to functions in util.c */
661 #define U_S(what) ((U16)(what))
662 #define U_I(what) ((unsigned int)(what))
663 #define U_L(what) ((U32)(what))
665 U32 cast_ulong _((double));
666 #define U_S(what) ((U16)cast_ulong((double)(what)))
667 #define U_I(what) ((unsigned int)cast_ulong((double)(what)))
668 #define U_L(what) (cast_ulong((double)(what)))
672 #define I_32(what) ((I32)(what))
673 #define I_V(what) ((IV)(what))
674 #define U_V(what) ((UV)(what))
676 I32 cast_i32 _((double));
677 #define I_32(what) (cast_i32((double)(what)))
678 IV cast_iv _((double));
679 #define I_V(what) (cast_iv((double)(what)))
680 UV cast_uv _((double));
681 #define U_V(what) (cast_uv((double)(what)))
695 #define TMPPATH "plXXXXXX"
698 #define TMPPATH "sys$scratch:perl-eXXXXXX"
700 #define TMPPATH "/tmp/perl-eXXXXXX"
705 Uid_t getuid _((void));
706 Uid_t geteuid _((void));
707 Gid_t getgid _((void));
708 Gid_t getegid _((void));
714 #define DEBUG(a) if (debug) a
715 #define DEBUG_p(a) if (debug & 1) a
716 #define DEBUG_s(a) if (debug & 2) a
717 #define DEBUG_l(a) if (debug & 4) a
718 #define DEBUG_t(a) if (debug & 8) a
719 #define DEBUG_o(a) if (debug & 16) a
720 #define DEBUG_c(a) if (debug & 32) a
721 #define DEBUG_P(a) if (debug & 64) a
722 #define DEBUG_m(a) if (debug & 128) a
723 #define DEBUG_f(a) if (debug & 256) a
724 #define DEBUG_r(a) if (debug & 512) a
725 #define DEBUG_x(a) if (debug & 1024) a
726 #define DEBUG_u(a) if (debug & 2048) a
727 #define DEBUG_L(a) if (debug & 4096) a
728 #define DEBUG_H(a) if (debug & 8192) a
729 #define DEBUG_X(a) if (debug & 16384) a
730 #define DEBUG_D(a) if (debug & 32768) a
751 #define YYMAXDEPTH 300
753 #define assert(what) DEB( { \
755 croak("Assertion failed: file \"%s\", line %d", \
756 __FILE__, __LINE__); \
761 I32 (*uf_val)_((IV, SV*));
762 I32 (*uf_set)_((IV, SV*));
766 /* Fix these up for __STDC__ */
768 char *mktemp _((char*));
769 double atof _((const char*));
773 /* All of these are in stdlib.h or time.h for ANSI C */
775 struct tm *gmtime(), *localtime();
776 char *strchr(), *strrchr();
777 char *strcpy(), *strcat();
778 #endif /* ! STANDARD_C */
787 double exp _((double));
788 double log _((double));
789 double sqrt _((double));
790 double modf _((double,double*));
791 double sin _((double));
792 double cos _((double));
793 double atan2 _((double,double));
794 double pow _((double,double));
801 char *crypt _((const char*, const char*));
802 char *getenv _((const char*));
803 Off_t lseek _((int,Off_t,int));
804 char *getlogin _((void));
807 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
809 I32 unlnk _((char*));
811 #define UNLINK unlink
815 # ifdef HAS_SETRESUID
816 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
817 # define HAS_SETREUID
821 # ifdef HAS_SETRESGID
822 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
823 # define HAS_SETREGID
836 # define DEBUGGING_MSTATS
838 # define PAD_SV(po) pad_sv(po)
840 # define PAD_SV(po) curpad[po]
848 EXT PerlInterpreter * curinterp; /* currently running interpreter */
849 #ifndef VMS /* VMS doesn't use environ array */
850 extern char ** environ; /* environment variables supplied via exec */
852 EXT int uid; /* current real user id */
853 EXT int euid; /* current effective user id */
854 EXT int gid; /* current real group id */
855 EXT int egid; /* current effective group id */
856 EXT bool nomemok; /* let malloc context handle nomem */
857 EXT U32 an; /* malloc sequence number */
858 EXT U32 cop_seqmax; /* statement sequence number */
859 EXT U16 op_seqmax; /* op sequence number */
860 EXT U32 evalseq; /* eval sequence number */
861 EXT U32 sub_generation; /* inc to force methods to be looked up again */
862 EXT char ** origenviron;
864 EXT U32 * profiledata;
865 EXT int maxo INIT(MAXO);/* Number of ops */
867 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
868 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
869 EXT double * xnv_root; /* free xnv list--shared by interpreters */
870 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
871 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
872 EXT HE * he_root; /* free he list--shared by interpreters */
873 EXT char * nice_chunk; /* a nice chunk of memory to reuse */
874 EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
876 /* Stack for currently executing thread--context switch must handle this. */
877 EXT SV ** stack_base; /* stack->array_ary */
878 EXT SV ** stack_sp; /* stack pointer now */
879 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
881 /* likewise for these */
883 EXT OP * op; /* current op--oughta be in a global register */
885 EXT I32 * scopestack; /* blocks we've entered */
886 EXT I32 scopestack_ix;
887 EXT I32 scopestack_max;
889 EXT ANY* savestack; /* to save non-local values on */
890 EXT I32 savestack_ix;
891 EXT I32 savestack_max;
893 EXT OP ** retstack; /* returns we've pushed */
895 EXT I32 retstack_max;
897 EXT I32 * markstack; /* stackmarks we're remembering */
898 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
899 EXT I32 * markstack_max; /* stackmarks we're remembering */
907 EXT char tokenbuf[256];
908 EXT struct stat statbuf;
910 EXT struct tms timesbuf;
912 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
914 /* for tmp use in stupid debuggers */
919 /* handy constants */
920 EXT char * Yes INIT("1");
921 EXT char * No INIT("");
922 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
923 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
924 EXT char * vert INIT("|");
926 EXT char warn_uninit[]
927 INIT("Use of uninitialized value");
928 EXT char warn_nosemi[]
929 INIT("Semicolon seems to be missing");
930 EXT char warn_reserved[]
931 INIT("Unquoted string \"%s\" may clash with future reserved word");
933 INIT("Unsuccessful %s on filename containing newline");
934 EXT char no_wrongref[]
935 INIT("Can't use %s ref as %s ref");
937 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
939 INIT("Can't use an undefined value as %s reference");
941 INIT("Modification of non-creatable array value attempted, subscript %d");
943 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
945 INIT("Modification of a read-only value attempted");
947 INIT("Out of memory!\n");
948 EXT char no_security[]
949 INIT("Insecure dependency in %s%s");
950 EXT char no_sock_func[]
951 INIT("Unsupported socket function \"%s\" called");
952 EXT char no_dir_func[]
953 INIT("Unsupported directory function \"%s\" called");
955 INIT("The %s function is unimplemented");
957 INIT("\"my\" variable %s can't be in a package");
963 EXT char * cshname INIT(CSH);
968 EXT char *sig_name[] = { SIG_NAME };
969 EXT int sig_num[] = { SIG_NUM };
971 EXT char *sig_name[];
976 EXT unsigned char fold[] = { /* fast case folding table */
977 0, 1, 2, 3, 4, 5, 6, 7,
978 8, 9, 10, 11, 12, 13, 14, 15,
979 16, 17, 18, 19, 20, 21, 22, 23,
980 24, 25, 26, 27, 28, 29, 30, 31,
981 32, 33, 34, 35, 36, 37, 38, 39,
982 40, 41, 42, 43, 44, 45, 46, 47,
983 48, 49, 50, 51, 52, 53, 54, 55,
984 56, 57, 58, 59, 60, 61, 62, 63,
985 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
986 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
987 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
988 'x', 'y', 'z', 91, 92, 93, 94, 95,
989 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
990 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
991 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
992 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
993 128, 129, 130, 131, 132, 133, 134, 135,
994 136, 137, 138, 139, 140, 141, 142, 143,
995 144, 145, 146, 147, 148, 149, 150, 151,
996 152, 153, 154, 155, 156, 157, 158, 159,
997 160, 161, 162, 163, 164, 165, 166, 167,
998 168, 169, 170, 171, 172, 173, 174, 175,
999 176, 177, 178, 179, 180, 181, 182, 183,
1000 184, 185, 186, 187, 188, 189, 190, 191,
1001 192, 193, 194, 195, 196, 197, 198, 199,
1002 200, 201, 202, 203, 204, 205, 206, 207,
1003 208, 209, 210, 211, 212, 213, 214, 215,
1004 216, 217, 218, 219, 220, 221, 222, 223,
1005 224, 225, 226, 227, 228, 229, 230, 231,
1006 232, 233, 234, 235, 236, 237, 238, 239,
1007 240, 241, 242, 243, 244, 245, 246, 247,
1008 248, 249, 250, 251, 252, 253, 254, 255
1011 EXT unsigned char fold[];
1015 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
1016 1, 2, 84, 151, 154, 155, 156, 157,
1017 165, 246, 250, 3, 158, 7, 18, 29,
1018 40, 51, 62, 73, 85, 96, 107, 118,
1019 129, 140, 147, 148, 149, 150, 152, 153,
1020 255, 182, 224, 205, 174, 176, 180, 217,
1021 233, 232, 236, 187, 235, 228, 234, 226,
1022 222, 219, 211, 195, 188, 193, 185, 184,
1023 191, 183, 201, 229, 181, 220, 194, 162,
1024 163, 208, 186, 202, 200, 218, 198, 179,
1025 178, 214, 166, 170, 207, 199, 209, 206,
1026 204, 160, 212, 216, 215, 192, 175, 173,
1027 243, 172, 161, 190, 203, 189, 164, 230,
1028 167, 248, 227, 244, 242, 255, 241, 231,
1029 240, 253, 169, 210, 245, 237, 249, 247,
1030 239, 168, 252, 251, 254, 238, 223, 221,
1031 213, 225, 177, 197, 171, 196, 159, 4,
1032 5, 6, 8, 9, 10, 11, 12, 13,
1033 14, 15, 16, 17, 19, 20, 21, 22,
1034 23, 24, 25, 26, 27, 28, 30, 31,
1035 32, 33, 34, 35, 36, 37, 38, 39,
1036 41, 42, 43, 44, 45, 46, 47, 48,
1037 49, 50, 52, 53, 54, 55, 56, 57,
1038 58, 59, 60, 61, 63, 64, 65, 66,
1039 67, 68, 69, 70, 71, 72, 74, 75,
1040 76, 77, 78, 79, 80, 81, 82, 83,
1041 86, 87, 88, 89, 90, 91, 92, 93,
1042 94, 95, 97, 98, 99, 100, 101, 102,
1043 103, 104, 105, 106, 108, 109, 110, 111,
1044 112, 113, 114, 115, 116, 117, 119, 120,
1045 121, 122, 123, 124, 125, 126, 127, 128,
1046 130, 131, 132, 133, 134, 135, 136, 137,
1047 138, 139, 141, 142, 143, 144, 145, 146
1050 EXT unsigned char freq[];
1055 EXT char* block_type[] = {
1064 EXT char* block_type[];
1068 /*****************************************************************************/
1069 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1070 /*****************************************************************************/
1071 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1084 EXT U32 lex_state; /* next token is determined */
1085 EXT U32 lex_defer; /* state after determined token */
1086 EXT expectation lex_expect; /* expect after determined token */
1087 EXT I32 lex_brackets; /* bracket count */
1088 EXT I32 lex_formbrack; /* bracket count at outer format level */
1089 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1090 EXT I32 lex_casemods; /* casemod count */
1091 EXT I32 lex_dojoin; /* doing an array interpolation */
1092 EXT I32 lex_starts; /* how many interps done on level */
1093 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1094 EXT SV * lex_repl; /* runtime replacement from s/// */
1095 EXT OP * lex_op; /* extra info to pass back on op */
1096 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1097 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1098 EXT char * lex_brackstack; /* what kind of brackets to pop */
1099 EXT char * lex_casestack; /* what kind of case mods in effect */
1101 /* What we know when we're in LEX_KNOWNEXT state. */
1102 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1103 EXT I32 nexttype[5]; /* type of next token */
1106 EXT FILE * VOL rsfp INIT(Nullfp);
1109 EXT char * oldbufptr;
1110 EXT char * oldoldbufptr;
1112 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1113 EXT AV * rsfp_filters;
1115 EXT I32 multi_start; /* 1st line of multi-line string */
1116 EXT I32 multi_end; /* last line of multi-line string */
1117 EXT I32 multi_open; /* delimiter of said string */
1118 EXT I32 multi_close; /* delimiter of said string */
1121 EXT I32 error_count; /* how many errors so far, max 10 */
1122 EXT I32 subline; /* line this subroutine began on */
1123 EXT SV * subname; /* name of current subroutine */
1125 EXT CV * compcv; /* currently compiling subroutine */
1126 EXT AV * comppad; /* storage for lexically scoped temporaries */
1127 EXT AV * comppad_name; /* variable names for "my" variables */
1128 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1129 EXT I32 min_intro_pending;/* start of vars to introduce */
1130 EXT I32 max_intro_pending;/* end of vars to introduce */
1131 EXT I32 padix; /* max used index in current "register" pad */
1132 EXT I32 padix_floor; /* how low may inner block reset padix */
1133 EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1136 EXT I32 thisexpr; /* name id for nothing_in_common() */
1137 EXT char * last_uni; /* position of last named-unary operator */
1138 EXT char * last_lop; /* position of last list operator */
1139 EXT OPCODE last_lop_op; /* last list operator */
1140 EXT bool in_my; /* we're compiling a "my" declaration */
1142 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1145 EXT U32 hints; /* various compilation flags */
1147 /* Note: the lowest 8 bits are reserved for
1148 stuffing into op->op_private */
1149 #define HINT_INTEGER 0x00000001
1150 #define HINT_STRICT_REFS 0x00000002
1152 #define HINT_BLOCK_SCOPE 0x00000100
1153 #define HINT_STRICT_SUBS 0x00000200
1154 #define HINT_STRICT_VARS 0x00000400
1156 /**************************************************************************/
1157 /* This regexp stuff is global since it always happens within 1 expr eval */
1158 /**************************************************************************/
1160 EXT char * regprecomp; /* uncompiled string. */
1161 EXT char * regparse; /* Input-scan pointer. */
1162 EXT char * regxend; /* End of input for compile */
1163 EXT I32 regnpar; /* () count. */
1164 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1165 EXT I32 regsize; /* Code size. */
1166 EXT I32 regnaughty; /* How bad is this pattern? */
1167 EXT I32 regsawback; /* Did we see \1, ...? */
1169 EXT char * reginput; /* String-input pointer. */
1170 EXT char * regbol; /* Beginning of input, for ^ check. */
1171 EXT char * regeol; /* End of input, for $ check. */
1172 EXT char ** regstartp; /* Pointer to startp array. */
1173 EXT char ** regendp; /* Ditto for endp. */
1174 EXT U32 * reglastparen; /* Similarly for lastparen. */
1175 EXT char * regtill; /* How far we are required to go. */
1176 EXT U16 regflags; /* are we folding, multilining? */
1177 EXT char regprev; /* char before regbol, \n if none */
1179 /***********************************************/
1180 /* Global only to current interpreter instance */
1181 /***********************************************/
1186 struct interpreter {
1189 #define IINIT(x) INIT(x)
1192 /* pseudo environmental stuff */
1194 IEXT char ** Iorigargv;
1198 IEXT char * Iorigfilename;
1200 IEXT SV * Iwarnhook;
1201 IEXT SV * Iparsehook;
1203 /* Various states of an input record separator SV (rs, nrs) */
1204 #define RsSNARF(sv) (! SvOK(sv))
1205 #define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1206 #define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1211 IEXT char Ipatchlevel[6];
1213 IEXT char * Isplitstr IINIT(" ");
1214 IEXT bool Ipreprocess;
1220 IEXT bool Idoswitches;
1222 IEXT bool Idoextract;
1223 IEXT bool Isawampersand; /* must save all match strings */
1224 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1225 IEXT bool Isawi; /* study must assume case insensitive */
1228 IEXT bool Ido_undump; /* -u or dump seen? */
1229 IEXT char * Iinplace;
1230 IEXT char * Ie_tmpname;
1232 IEXT VOL U32 Idebug;
1234 /* This value may be raised by extensions for testing purposes */
1235 IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
1237 /* magical thingies */
1238 IEXT Time_t Ibasetime; /* $^T */
1239 IEXT SV * Iformfeed; /* $^L */
1240 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1241 IEXT SV * Irs; /* $/ */
1242 IEXT char * Iofs; /* $, */
1243 IEXT STRLEN Iofslen;
1244 IEXT char * Iors; /* $\ */
1245 IEXT STRLEN Iorslen;
1246 IEXT char * Iofmt; /* $# */
1247 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1248 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1249 IEXT U32 Istatusvalue; /* $? */
1251 IEXT struct stat Istatcache; /* _ */
1253 IEXT SV * Istatname IINIT(Nullsv);
1255 /* shortcuts to various I/O objects */
1257 IEXT GV * Ilast_in_gv;
1260 IEXT GV * Idefoutgv;
1261 IEXT GV * Iargvoutgv;
1263 /* shortcuts to regexp stuff */
1267 IEXT PMOP * Icurpm; /* what to do \ interps from */
1268 IEXT I32 * Iscreamfirst;
1269 IEXT I32 * Iscreamnext;
1270 IEXT I32 Imaxscream IINIT(-1);
1271 IEXT SV * Ilastscream;
1273 /* shortcuts to misc objects */
1276 /* shortcuts to debugging objects */
1280 IEXT SV * IDBsingle;
1282 IEXT SV * IDBsignal;
1283 IEXT AV * Ilineary; /* lines of script for debugger */
1284 IEXT AV * Idbargs; /* args to call listed by caller function */
1287 IEXT HV * Idefstash; /* main symbol table */
1288 IEXT HV * Icurstash; /* symbol table for current package */
1289 IEXT HV * Idebstash; /* symbol table for perldb package */
1290 IEXT SV * Icurstname; /* name of current package */
1291 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1292 IEXT AV * Iendav; /* names of END subroutines */
1293 IEXT AV * Ipad; /* storage for lexically scoped temporaries */
1294 IEXT AV * Ipadname; /* variable names for "my" variables */
1296 /* memory management */
1297 IEXT SV ** Itmps_stack;
1298 IEXT I32 Itmps_ix IINIT(-1);
1299 IEXT I32 Itmps_floor IINIT(-1);
1301 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1302 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1303 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1304 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1306 /* funky return mechanisms */
1307 IEXT I32 Ilastspbase;
1309 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1311 /* subprocess state */
1312 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1313 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1315 /* internal state */
1316 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1317 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1318 IEXT int Idelaymagic; /* ($<,$>) = ... */
1319 IEXT bool Idirty; /* In the middle of tearing things down? */
1320 IEXT U8 Ilocalizing; /* are we processing a local() list? */
1321 IEXT bool Itainted; /* using variables controlled by $< */
1322 IEXT bool Itainting; /* doing taint checks */
1323 IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
1327 IEXT I32 Idlmax IINIT(128);
1328 IEXT char * Idebname;
1329 IEXT char * Idebdelim;
1331 /* current interpreter roots */
1333 IEXT OP * Imain_root;
1334 IEXT OP * Imain_start;
1335 IEXT OP * Ieval_root;
1336 IEXT OP * Ieval_start;
1338 /* runtime control stuff */
1339 IEXT COP * VOL Icurcop IINIT(&compiling);
1340 IEXT line_t Icopline IINIT(NOLINE);
1341 IEXT CONTEXT * Icxstack;
1342 IEXT I32 Icxstack_ix IINIT(-1);
1343 IEXT I32 Icxstack_max IINIT(128);
1344 IEXT jmp_buf Itop_env;
1348 IEXT AV * Istack; /* THE STACK */
1349 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1350 IEXT SV ** Imystack_base; /* stack->array_ary */
1351 IEXT SV ** Imystack_sp; /* stack pointer now */
1352 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1354 /* format accumulators */
1355 IEXT SV * Iformtarget;
1356 IEXT SV * Ibodytarget;
1357 IEXT SV * Itoptarget;
1359 /* statics moved here for shared library purposes */
1360 IEXT SV Istrchop; /* return value from chop */
1361 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1362 IEXT int Ilastfd; /* what to preserve mode on */
1363 IEXT char * Ioldname; /* what to preserve mode on */
1364 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1365 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1366 IEXT OP * Isortcop; /* user defined sort routine */
1367 IEXT HV * Isortstash; /* which is in some package or other */
1368 IEXT GV * Ifirstgv; /* $a */
1369 IEXT GV * Isecondgv; /* $b */
1370 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1371 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1372 IEXT SV * Imystrk; /* temp key string for do_each() */
1373 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1374 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1375 IEXT I32 Igensym; /* next symbol for getsym() to define */
1376 IEXT bool Ipreambled;
1377 IEXT AV * Ipreambleav;
1378 IEXT int Ilaststatval IINIT(-1);
1379 IEXT I32 Ilaststype IINIT(OP_STAT);
1387 struct interpreter {
1405 # include <stdarg.h>
1408 # include <varargs.h>
1415 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1416 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1418 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1419 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1426 /* The following must follow proto.h */
1429 EXT MGVTBL vtbl_sv = {magic_get,
1433 EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1434 EXT MGVTBL vtbl_envelem = {0, magic_setenv,
1437 EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1438 EXT MGVTBL vtbl_sigelem = {0, magic_setsig,
1440 EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1442 EXT MGVTBL vtbl_packelem = {magic_getpack,
1446 EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
1448 EXT MGVTBL vtbl_isa = {0, magic_setisa,
1450 EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
1452 EXT MGVTBL vtbl_arylen = {magic_getarylen,
1455 EXT MGVTBL vtbl_glob = {magic_getglob,
1458 EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
1460 EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1462 EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
1464 EXT MGVTBL vtbl_vec = {0, magic_setvec,
1466 EXT MGVTBL vtbl_pos = {magic_getpos,
1469 EXT MGVTBL vtbl_bm = {0, magic_setbm,
1471 EXT MGVTBL vtbl_uvar = {magic_getuvar,
1476 EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
1477 0, 0, magic_setamagic};
1478 EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1479 0, 0, magic_setamagic};
1480 #endif /* OVERLOAD */
1484 EXT MGVTBL vtbl_env;
1485 EXT MGVTBL vtbl_envelem;
1486 EXT MGVTBL vtbl_sig;
1487 EXT MGVTBL vtbl_sigelem;
1488 EXT MGVTBL vtbl_pack;
1489 EXT MGVTBL vtbl_packelem;
1490 EXT MGVTBL vtbl_dbline;
1491 EXT MGVTBL vtbl_isa;
1492 EXT MGVTBL vtbl_isaelem;
1493 EXT MGVTBL vtbl_arylen;
1494 EXT MGVTBL vtbl_glob;
1495 EXT MGVTBL vtbl_mglob;
1496 EXT MGVTBL vtbl_taint;
1497 EXT MGVTBL vtbl_substr;
1498 EXT MGVTBL vtbl_vec;
1499 EXT MGVTBL vtbl_pos;
1501 EXT MGVTBL vtbl_uvar;
1504 EXT MGVTBL vtbl_amagic;
1505 EXT MGVTBL vtbl_amagicelem;
1506 #endif /* OVERLOAD */
1511 EXT long amagic_generation;
1513 #define NofAMmeth 29
1515 EXT char * AMG_names[NofAMmeth][2] = {
1517 {"bool", "nomethod"},
1547 EXT char * AMG_names[NofAMmeth][2];
1548 #endif /* def INITAMAGIC */
1553 CV* table[NofAMmeth*2];
1556 typedef struct am_table AMT;
1558 #define AMGfallNEVER 1
1560 #define AMGfallYES 3
1563 fallback_amg, abs_amg,
1564 bool__amg, nomethod_amg,
1565 string_amg, numer_amg,
1566 add_amg, add_ass_amg,
1567 subtr_amg, subtr_ass_amg,
1568 mult_amg, mult_ass_amg,
1569 div_amg, div_ass_amg,
1570 mod_amg, mod_ass_amg,
1571 pow_amg, pow_ass_amg,
1572 lshift_amg, lshift_ass_amg,
1573 rshift_amg, rshift_ass_amg,
1574 band_amg, band_ass_amg,
1575 bor_amg, bor_ass_amg,
1576 bxor_amg, bxor_ass_amg,
1589 repeat_amg, repeat_ass_amg,
1590 concat_amg, concat_ass_amg,
1593 #endif /* OVERLOAD */
1595 #endif /* Include guard */