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perl 5.003_01: pod/perlxstut.pod
[p5sagit/p5-mst-13.2.git] / perl.h
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a0d0e21e 1/* perl.h
a687059c 2 *
a0d0e21e 3 * Copyright (c) 1987-1994, Larry Wall
a687059c 4 *
352d5a3a 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.
8d063cd8 7 *
8d063cd8 8 */
85e6fe83 9#ifndef H_PERL
10#define H_PERL 1
a0d0e21e 11#define OVERLOAD
8d063cd8 12
728e2803 13/*
14 * STMT_START { statements; } STMT_END;
15 * can be used as a single statement, as in
16 * if (x) STMT_START { ... } STMT_END; else ...
17 *
18 * Trying to select a version that gives no warnings...
19 */
20#if !(defined(STMT_START) && defined(STMT_END))
21# if defined(__GNUC__) && !defined(__STRICT_ANSI__)
22# define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
23# define STMT_END )
24# else
25 /* Now which other defined()s do we need here ??? */
26# if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
27# define STMT_START if (1)
28# define STMT_END else (void)0
29# else
30# define STMT_START do
31# define STMT_END while (0)
32# endif
33# endif
34#endif
35
79072805 36#include "embed.h"
37
85e6fe83 38#define VOIDUSED 1
ac58e20f 39#include "config.h"
79072805 40
41#ifndef BYTEORDER
42# define BYTEORDER 0x1234
43#endif
44
45/* Overall memory policy? */
46#ifndef CONSERVATIVE
47# define LIBERAL 1
48#endif
49
50/*
51 * The following contortions are brought to you on behalf of all the
52 * standards, semi-standards, de facto standards, not-so-de-facto standards
53 * of the world, as well as all the other botches anyone ever thought of.
54 * The basic theory is that if we work hard enough here, the rest of the
55 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
56 */
ac58e20f 57
ee0007ab 58/* define this once if either system, instead of cluttering up the src */
59#if defined(MSDOS) || defined(atarist)
60#define DOSISH 1
61#endif
62
a0d0e21e 63#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
352d5a3a 64# define STANDARD_C 1
65#endif
66
67#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 68# ifdef __cplusplus
69# define VOL // to temporarily suppress warnings
70# else
71# define VOL volatile
72# endif
663a0e37 73#else
79072805 74# define VOL
663a0e37 75#endif
76
463ee0b2 77#define TAINT_IF(c) (tainted |= (c))
78#define TAINT_NOT (tainted = 0)
79#define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
80#define TAINT_ENV() if (tainting) taint_env()
a687059c 81
f82b3d41 82#ifdef USE_BSDPGRP
83# ifdef HAS_GETPGRP
84# define BSD_GETPGRP(pid) getpgrp((pid))
663a0e37 85# endif
f82b3d41 86# ifdef HAS_SETPGRP
87# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
c07a80fd 88# endif
89#else
f82b3d41 90# ifdef HAS_GETPGRP2
91# define BSD_GETPGRP(pid) getpgrp2((pid))
92# ifndef HAS_GETPGRP
93# define HAS_GETPGRP
94# endif
95# endif
96# ifdef HAS_SETPGRP2
97# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
98# ifndef HAS_SETPGRP
99# define HAS_SETPGRP
100# endif
c07a80fd 101# endif
663a0e37 102#endif
103
fe14fcc3 104#include <stdio.h>
0c30d9ec 105
4633a7c4 106#ifdef USE_NEXT_CTYPE
0c30d9ec 107
108#if NX_CURRENT_COMPILER_RELEASE >= 400
109#include <objc/NXCType.h>
110#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 111#include <appkit/NXCType.h>
0c30d9ec 112#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
113
114#else /* !USE_NEXT_CTYPE */
fe14fcc3 115#include <ctype.h>
0c30d9ec 116#endif /* USE_NEXT_CTYPE */
a0d0e21e 117
4633a7c4 118#ifdef I_LOCALE
119#include <locale.h>
120#endif
121
a0d0e21e 122#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
123#undef METHOD
124#endif
125
fe14fcc3 126#include <setjmp.h>
79072805 127
a0d0e21e 128#ifdef I_SYS_PARAM
79072805 129# ifdef PARAM_NEEDS_TYPES
130# include <sys/types.h>
131# endif
132# include <sys/param.h>
352d5a3a 133#endif
79072805 134
135
136/* Use all the "standard" definitions? */
a0d0e21e 137#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 138# include <stdlib.h>
352d5a3a 139#endif /* STANDARD_C */
03a14243 140
4633a7c4 141/* Maybe this comes after <stdlib.h> so we don't try to change
142 the standard library prototypes?. We'll use our own in
143 proto.h instead. I guess. The patch had no explanation.
144*/
145#ifdef MYMALLOC
0c30d9ec 146# ifndef DONT_HIDEMYMALLOC
4633a7c4 147# define malloc Mymalloc
148# define realloc Myremalloc
149# define free Myfree
0c30d9ec 150# define calloc Mycalloc
4633a7c4 151# endif
152# define safemalloc malloc
153# define saferealloc realloc
154# define safefree free
0c30d9ec 155# define safecalloc calloc
4633a7c4 156#endif
157
a0d0e21e 158#define MEM_SIZE Size_t
159
160#if defined(I_STRING) || defined(__cplusplus)
161# include <string.h>
162#else
163# include <strings.h>
164#endif
165
166#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
167#define strchr index
168#define strrchr rindex
169#endif
170
171#if defined(mips) && defined(ultrix) && !defined(__STDC__)
79072805 172# undef HAS_MEMCMP
663a0e37 173#endif
fe14fcc3 174
16d20bd9 175#ifdef I_MEMORY
176# include <memory.h>
177#endif
178
fe14fcc3 179#ifdef HAS_MEMCPY
85e6fe83 180# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 181# ifndef memcpy
a0d0e21e 182 extern char * memcpy _((char*, char*, int));
ee0007ab 183# endif
184# endif
185#else
186# ifndef memcpy
187# ifdef HAS_BCOPY
188# define memcpy(d,s,l) bcopy(s,d,l)
189# else
190# define memcpy(d,s,l) my_bcopy(s,d,l)
191# endif
192# endif
193#endif /* HAS_MEMCPY */
fe14fcc3 194
ee0007ab 195#ifdef HAS_MEMSET
85e6fe83 196# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 197# ifndef memset
a0d0e21e 198 extern char *memset _((char*, int, int));
ee0007ab 199# endif
200# endif
201# define memzero(d,l) memset(d,0,l)
202#else
203# ifndef memzero
204# ifdef HAS_BZERO
205# define memzero(d,l) bzero(d,l)
206# else
207# define memzero(d,l) my_bzero(d,l)
208# endif
352d5a3a 209# endif
ee0007ab 210#endif /* HAS_MEMSET */
211
212#ifdef HAS_MEMCMP
85e6fe83 213# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 214# ifndef memcmp
a0d0e21e 215 extern int memcmp _((char*, char*, int));
ee0007ab 216# endif
217# endif
218#else
219# ifndef memcmp
ecfc5424 220# define memcmp my_memcmp
352d5a3a 221# endif
ee0007ab 222#endif /* HAS_MEMCMP */
8d063cd8 223
f82b3d41 224/* XXX we prefer bcmp slightly for comparisons that don't care about ordering */
ee0007ab 225#ifndef HAS_BCMP
352d5a3a 226# ifndef bcmp
227# define bcmp(s1,s2,l) memcmp(s1,s2,l)
228# endif
ee0007ab 229#endif /* HAS_BCMP */
230
85e6fe83 231#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 232# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805 233# define memmove(d,s,l) bcopy(s,d,l)
234# else
2304df62 235# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 236# define memmove(d,s,l) memcpy(d,s,l)
237# else
238# define memmove(d,s,l) my_bcopy(s,d,l)
239# endif
240# endif
d9d8d8de 241#endif
378cc40b 242
243#ifndef _TYPES_ /* If types.h defines this it's easy. */
79072805 244# ifndef major /* Does everyone's types.h define this? */
245# include <sys/types.h>
246# endif
378cc40b 247#endif
248
ae986130 249#ifdef I_NETINET_IN
79072805 250# include <netinet/in.h>
ae986130 251#endif
252
1aef975c 253#ifdef I_SYS_STAT
8d063cd8 254#include <sys/stat.h>
1aef975c 255#endif
79072805 256
a0d0e21e 257/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
258 like UTekV) are broken, sometimes giving false positives. Undefine
259 them here and let the code below set them to proper values.
260
261 The ghs macro stands for GreenHills Software C-1.8.5 which
262 is the C compiler for sysV88 and the various derivatives.
263 This header file bug is corrected in gcc-2.5.8 and later versions.
264 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
265
266#if defined(uts) || (defined(m88k) && defined(ghs))
79072805 267# undef S_ISDIR
268# undef S_ISCHR
269# undef S_ISBLK
270# undef S_ISREG
271# undef S_ISFIFO
272# undef S_ISLNK
ee0007ab 273#endif
135863df 274
663a0e37 275#ifdef I_TIME
276# include <time.h>
ffed7fef 277#endif
663a0e37 278
fe14fcc3 279#ifdef I_SYS_TIME
85e6fe83 280# ifdef I_SYS_TIME_KERNEL
663a0e37 281# define KERNEL
282# endif
283# include <sys/time.h>
85e6fe83 284# ifdef I_SYS_TIME_KERNEL
663a0e37 285# undef KERNEL
286# endif
a687059c 287#endif
135863df 288
d9d8d8de 289#ifndef MSDOS
a0d0e21e 290# if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 291# include <sys/times.h>
292# endif
d9d8d8de 293#endif
8d063cd8 294
fe14fcc3 295#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 296# undef HAS_STRERROR
663a0e37 297#endif
298
a0d0e21e 299#ifndef HAS_MKFIFO
300# ifndef mkfifo
301# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
302# endif
303#endif /* !HAS_MKFIFO */
304
663a0e37 305#include <errno.h>
ed6116ce 306#ifdef HAS_SOCKET
85e6fe83 307# ifdef I_NET_ERRNO
ed6116ce 308# include <net/errno.h>
309# endif
310#endif
748a9306 311#ifndef VMS
312# define FIXSTATUS(sts) (U_L((sts) & 0xffff))
313# define SHIFTSTATUS(sts) ((sts) >> 8)
314# define SETERRNO(errcode,vmserrcode) errno = (errcode)
315#else
316# define FIXSTATUS(sts) (U_L(sts))
317# define SHIFTSTATUS(sts) (sts)
728e2803 318# define SETERRNO(errcode,vmserrcode) STMT_START {set_errno(errcode); set_vaxc_errno(vmserrcode);} STMT_END
748a9306 319#endif
ed6116ce 320
d9d8d8de 321#ifndef MSDOS
79072805 322# ifndef errno
323 extern int errno; /* ANSI allows errno to be an lvalue expr */
324# endif
d9d8d8de 325#endif
663a0e37 326
2304df62 327#ifdef HAS_STRERROR
a0d0e21e 328# ifdef VMS
329 char *strerror _((int,...));
330# else
331 char *strerror _((int));
332# endif
2304df62 333# ifndef Strerror
334# define Strerror strerror
335# endif
336#else
337# ifdef HAS_SYS_ERRLIST
79072805 338 extern int sys_nerr;
339 extern char *sys_errlist[];
2304df62 340# ifndef Strerror
341# define Strerror(e) \
79072805 342 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 343# endif
79072805 344# endif
35c8bce7 345#endif
663a0e37 346
2304df62 347#ifdef I_SYS_IOCTL
79072805 348# ifndef _IOCTL_
349# include <sys/ioctl.h>
350# endif
a687059c 351#endif
352
ee0007ab 353#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805 354# ifdef HAS_SOCKETPAIR
355# undef HAS_SOCKETPAIR
356# endif
2304df62 357# ifdef I_NDBM
358# undef I_NDBM
79072805 359# endif
a687059c 360#endif
361
a687059c 362#if INTSIZE == 2
79072805 363# define htoni htons
364# define ntohi ntohs
a687059c 365#else
79072805 366# define htoni htonl
367# define ntohi ntohl
a687059c 368#endif
369
a0d0e21e 370/* Configure already sets Direntry_t */
35c8bce7 371#if defined(I_DIRENT)
663a0e37 372# include <dirent.h>
a0d0e21e 373# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
374# include <sys/dir.h>
375# endif
ae986130 376#else
fe14fcc3 377# ifdef I_SYS_NDIR
79a0689e 378# include <sys/ndir.h>
663a0e37 379# else
fe14fcc3 380# ifdef I_SYS_DIR
79a0689e 381# ifdef hp9000s500
382# include <ndir.h> /* may be wrong in the future */
383# else
384# include <sys/dir.h>
385# endif
663a0e37 386# endif
387# endif
4633a7c4 388#endif
a687059c 389
352d5a3a 390#ifdef FPUTS_BOTCH
391/* work around botch in SunOS 4.0.1 and 4.0.2 */
392# ifndef fputs
79072805 393# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a 394# endif
395#endif
396
c623bd54 397/*
398 * The following gobbledygook brought to you on behalf of __STDC__.
399 * (I could just use #ifndef __STDC__, but this is more bulletproof
400 * in the face of half-implementations.)
401 */
402
403#ifndef S_IFMT
404# ifdef _S_IFMT
405# define S_IFMT _S_IFMT
406# else
407# define S_IFMT 0170000
408# endif
409#endif
410
411#ifndef S_ISDIR
412# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
413#endif
414
415#ifndef S_ISCHR
416# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
417#endif
418
419#ifndef S_ISBLK
fe14fcc3 420# ifdef S_IFBLK
421# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
422# else
423# define S_ISBLK(m) (0)
424# endif
c623bd54 425#endif
426
427#ifndef S_ISREG
428# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
429#endif
430
431#ifndef S_ISFIFO
fe14fcc3 432# ifdef S_IFIFO
433# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
434# else
435# define S_ISFIFO(m) (0)
436# endif
c623bd54 437#endif
438
439#ifndef S_ISLNK
440# ifdef _S_ISLNK
441# define S_ISLNK(m) _S_ISLNK(m)
442# else
443# ifdef _S_IFLNK
444# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
445# else
446# ifdef S_IFLNK
447# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
448# else
449# define S_ISLNK(m) (0)
450# endif
451# endif
452# endif
453#endif
454
455#ifndef S_ISSOCK
456# ifdef _S_ISSOCK
457# define S_ISSOCK(m) _S_ISSOCK(m)
458# else
459# ifdef _S_IFSOCK
460# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
461# else
462# ifdef S_IFSOCK
463# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
464# else
465# define S_ISSOCK(m) (0)
466# endif
467# endif
468# endif
469#endif
470
471#ifndef S_IRUSR
472# ifdef S_IREAD
473# define S_IRUSR S_IREAD
474# define S_IWUSR S_IWRITE
475# define S_IXUSR S_IEXEC
476# else
477# define S_IRUSR 0400
478# define S_IWUSR 0200
479# define S_IXUSR 0100
480# endif
481# define S_IRGRP (S_IRUSR>>3)
482# define S_IWGRP (S_IWUSR>>3)
483# define S_IXGRP (S_IXUSR>>3)
484# define S_IROTH (S_IRUSR>>6)
485# define S_IWOTH (S_IWUSR>>6)
486# define S_IXOTH (S_IXUSR>>6)
487#endif
488
489#ifndef S_ISUID
490# define S_ISUID 04000
491#endif
492
493#ifndef S_ISGID
494# define S_ISGID 02000
495#endif
496
79072805 497#ifdef ff_next
498# undef ff_next
352d5a3a 499#endif
500
a0d0e21e 501#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa 502# define SLOPPYDIVIDE
503#endif
504
0c30d9ec 505#if defined(cray) || defined(convex) || BYTEORDER > 0xffff
ecfc5424 506# define HAS_QUAD
45d8adaa 507#endif
508
748a9306 509#ifdef UV
510#undef UV
511#endif
512
ecfc5424 513#ifdef HAS_QUAD
45d8adaa 514# ifdef cray
ecfc5424 515# define Quad_t int
45d8adaa 516# else
0c30d9ec 517# if defined(convex)
ecfc5424 518# define Quad_t long long
45d8adaa 519# else
ecfc5424 520# define Quad_t long
45d8adaa 521# endif
522# endif
748a9306 523 typedef Quad_t IV;
524 typedef unsigned Quad_t UV;
79072805 525#else
748a9306 526 typedef long IV;
527 typedef unsigned long UV;
79072805 528#endif
529
ee0007ab 530typedef MEM_SIZE STRLEN;
450a55e4 531
79072805 532typedef struct op OP;
533typedef struct cop COP;
534typedef struct unop UNOP;
535typedef struct binop BINOP;
536typedef struct listop LISTOP;
537typedef struct logop LOGOP;
538typedef struct condop CONDOP;
539typedef struct pmop PMOP;
540typedef struct svop SVOP;
541typedef struct gvop GVOP;
542typedef struct pvop PVOP;
79072805 543typedef struct loop LOOP;
544
545typedef struct Outrec Outrec;
93a17b20 546typedef struct interpreter PerlInterpreter;
79072805 547typedef struct ff FF;
79072805 548typedef struct sv SV;
549typedef struct av AV;
550typedef struct hv HV;
551typedef struct cv CV;
378cc40b 552typedef struct regexp REGEXP;
79072805 553typedef struct gp GP;
0c30d9ec 554typedef struct gv GV;
8990e307 555typedef struct io IO;
79072805 556typedef struct context CONTEXT;
557typedef struct block BLOCK;
558
559typedef struct magic MAGIC;
ed6116ce 560typedef struct xrv XRV;
79072805 561typedef struct xpv XPV;
562typedef struct xpviv XPVIV;
563typedef struct xpvnv XPVNV;
564typedef struct xpvmg XPVMG;
565typedef struct xpvlv XPVLV;
566typedef struct xpvav XPVAV;
567typedef struct xpvhv XPVHV;
568typedef struct xpvgv XPVGV;
569typedef struct xpvcv XPVCV;
570typedef struct xpvbm XPVBM;
571typedef struct xpvfm XPVFM;
8990e307 572typedef struct xpvio XPVIO;
79072805 573typedef struct mgvtbl MGVTBL;
574typedef union any ANY;
8d063cd8 575
378cc40b 576#include "handy.h"
a0d0e21e 577
16d20bd9 578typedef I32 (*filter_t) _((int, SV *, int));
579#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
580#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
581#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
582
748a9306 583#ifdef DOSISH
4633a7c4 584# if defined(OS2)
585# include "os2ish.h"
586# else
748a9306 587# include "dosish.h"
4633a7c4 588# endif
a0d0e21e 589#else
748a9306 590# if defined(VMS)
591# include "vmsish.h"
592# else
0c30d9ec 593# if defined(PLAN9)
594# include "./plan9/plan9ish.h"
595# else
596# include "unixish.h"
597# endif
748a9306 598# endif
599#endif
600
0c30d9ec 601#ifndef SH_PATH /* May be a variable. */
602# define SH_PATH BIN_SH
603#endif
604
748a9306 605#ifndef HAS_PAUSE
606#define pause() sleep((32767<<16)+32767)
607#endif
608
609#ifndef IOCPARM_LEN
610# ifdef IOCPARM_MASK
611 /* on BSDish systes we're safe */
612# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
613# else
614 /* otherwise guess at what's safe */
615# define IOCPARM_LEN(x) 256
616# endif
a0d0e21e 617#endif
618
79072805 619union any {
620 void* any_ptr;
621 I32 any_i32;
a0d0e21e 622 IV any_iv;
85e6fe83 623 long any_long;
a0d0e21e 624 void (*any_dptr) _((void*));
79072805 625};
626
378cc40b 627#include "regexp.h"
79072805 628#include "sv.h"
378cc40b 629#include "util.h"
8d063cd8 630#include "form.h"
79072805 631#include "gv.h"
632#include "cv.h"
633#include "opcode.h"
634#include "op.h"
635#include "cop.h"
636#include "av.h"
637#include "hv.h"
638#include "mg.h"
639#include "scope.h"
8d063cd8 640
4633a7c4 641/* work around some libPW problems */
642#ifdef DOINIT
643EXT char Error[1];
644#endif
645
450a55e4 646#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c 647# define I286
648#endif
649
fe14fcc3 650#if defined(htonl) && !defined(HAS_HTONL)
651#define HAS_HTONL
ae986130 652#endif
fe14fcc3 653#if defined(htons) && !defined(HAS_HTONS)
654#define HAS_HTONS
ae986130 655#endif
fe14fcc3 656#if defined(ntohl) && !defined(HAS_NTOHL)
657#define HAS_NTOHL
ae986130 658#endif
fe14fcc3 659#if defined(ntohs) && !defined(HAS_NTOHS)
660#define HAS_NTOHS
ae986130 661#endif
fe14fcc3 662#ifndef HAS_HTONL
d9d8d8de 663#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3 664#define HAS_HTONS
665#define HAS_HTONL
666#define HAS_NTOHS
667#define HAS_NTOHL
a687059c 668#define MYSWAP
669#define htons my_swap
670#define htonl my_htonl
671#define ntohs my_swap
672#define ntohl my_ntohl
673#endif
674#else
d9d8d8de 675#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3 676#undef HAS_HTONS
677#undef HAS_HTONL
678#undef HAS_NTOHS
679#undef HAS_NTOHL
a687059c 680#endif
681#endif
682
988174c1 683/*
684 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
685 * -DWS
686 */
687#if BYTEORDER != 0x1234
688# define HAS_VTOHL
689# define HAS_VTOHS
690# define HAS_HTOVL
691# define HAS_HTOVS
692# if BYTEORDER == 0x4321
693# define vtohl(x) ((((x)&0xFF)<<24) \
694 +(((x)>>24)&0xFF) \
695 +(((x)&0x0000FF00)<<8) \
696 +(((x)&0x00FF0000)>>8) )
697# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
698# define htovl(x) vtohl(x)
699# define htovs(x) vtohs(x)
700# endif
701 /* otherwise default to functions in util.c */
702#endif
703
0f85fab0 704#ifdef CASTNEGFLOAT
79072805 705#define U_S(what) ((U16)(what))
0f85fab0 706#define U_I(what) ((unsigned int)(what))
79072805 707#define U_L(what) ((U32)(what))
0f85fab0 708#else
a0d0e21e 709U32 cast_ulong _((double));
232e078e 710#define U_S(what) ((U16)cast_ulong((double)(what)))
711#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
712#define U_L(what) (cast_ulong((double)(what)))
ee0007ab 713#endif
714
ed6116ce 715#ifdef CASTI32
716#define I_32(what) ((I32)(what))
a0d0e21e 717#define I_V(what) ((IV)(what))
5d94fbed 718#define U_V(what) ((UV)(what))
ed6116ce 719#else
a0d0e21e 720I32 cast_i32 _((double));
232e078e 721#define I_32(what) (cast_i32((double)(what)))
a0d0e21e 722IV cast_iv _((double));
232e078e 723#define I_V(what) (cast_iv((double)(what)))
5d94fbed 724UV cast_uv _((double));
725#define U_V(what) (cast_uv((double)(what)))
ed6116ce 726#endif
727
79072805 728struct Outrec {
729 I32 o_lines;
d9d8d8de 730 char *o_str;
79072805 731 U32 o_len;
8d063cd8 732};
733
352d5a3a 734#ifndef MAXSYSFD
735# define MAXSYSFD 2
736#endif
ee0007ab 737
f82b3d41 738#ifndef TMPPATH
739# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 740#endif
79072805 741
742#ifndef __cplusplus
a0d0e21e 743Uid_t getuid _((void));
744Uid_t geteuid _((void));
745Gid_t getgid _((void));
746Gid_t getegid _((void));
79072805 747#endif
8d063cd8 748
749#ifdef DEBUGGING
0c30d9ec 750#ifndef Perl_debug_log
751#define Perl_debug_log stderr
752#endif
d96024cf 753#define YYDEBUG 1
79072805 754#define DEB(a) a
755#define DEBUG(a) if (debug) a
756#define DEBUG_p(a) if (debug & 1) a
757#define DEBUG_s(a) if (debug & 2) a
758#define DEBUG_l(a) if (debug & 4) a
759#define DEBUG_t(a) if (debug & 8) a
760#define DEBUG_o(a) if (debug & 16) a
761#define DEBUG_c(a) if (debug & 32) a
762#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 763#define DEBUG_m(a) if (curinterp && debug & 128) a
79072805 764#define DEBUG_f(a) if (debug & 256) a
765#define DEBUG_r(a) if (debug & 512) a
766#define DEBUG_x(a) if (debug & 1024) a
767#define DEBUG_u(a) if (debug & 2048) a
768#define DEBUG_L(a) if (debug & 4096) a
769#define DEBUG_H(a) if (debug & 8192) a
770#define DEBUG_X(a) if (debug & 16384) a
8990e307 771#define DEBUG_D(a) if (debug & 32768) a
79072805 772#else
773#define DEB(a)
774#define DEBUG(a)
775#define DEBUG_p(a)
776#define DEBUG_s(a)
777#define DEBUG_l(a)
778#define DEBUG_t(a)
779#define DEBUG_o(a)
780#define DEBUG_c(a)
781#define DEBUG_P(a)
782#define DEBUG_m(a)
783#define DEBUG_f(a)
784#define DEBUG_r(a)
785#define DEBUG_x(a)
786#define DEBUG_u(a)
787#define DEBUG_L(a)
788#define DEBUG_H(a)
789#define DEBUG_X(a)
8990e307 790#define DEBUG_D(a)
8d063cd8 791#endif
fe14fcc3 792#define YYMAXDEPTH 300
8d063cd8 793
79072805 794#define assert(what) DEB( { \
795 if (!(what)) { \
463ee0b2 796 croak("Assertion failed: file \"%s\", line %d", \
79072805 797 __FILE__, __LINE__); \
798 exit(1); \
799 }})
8d063cd8 800
450a55e4 801struct ufuncs {
a0d0e21e 802 I32 (*uf_val)_((IV, SV*));
803 I32 (*uf_set)_((IV, SV*));
804 IV uf_index;
450a55e4 805};
806
fe14fcc3 807/* Fix these up for __STDC__ */
a0d0e21e 808#ifndef __cplusplus
809char *mktemp _((char*));
810double atof _((const char*));
811#endif
79072805 812
352d5a3a 813#ifndef STANDARD_C
fe14fcc3 814/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 815Time_t time();
8d063cd8 816struct tm *gmtime(), *localtime();
93a17b20 817char *strchr(), *strrchr();
378cc40b 818char *strcpy(), *strcat();
352d5a3a 819#endif /* ! STANDARD_C */
8d063cd8 820
79072805 821
822#ifdef I_MATH
823# include <math.h>
824#else
825# ifdef __cplusplus
826 extern "C" {
827# endif
a0d0e21e 828 double exp _((double));
a0d0e21e 829 double log _((double));
830 double sqrt _((double));
831 double modf _((double,double*));
832 double sin _((double));
833 double cos _((double));
834 double atan2 _((double,double));
835 double pow _((double,double));
79072805 836# ifdef __cplusplus
837 };
838# endif
839#endif
840
a0d0e21e 841#ifndef __cplusplus
842char *crypt _((const char*, const char*));
843char *getenv _((const char*));
844Off_t lseek _((int,Off_t,int));
845char *getlogin _((void));
846#endif
79072805 847
16d20bd9 848#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 849#define UNLINK unlnk
a0d0e21e 850I32 unlnk _((char*));
8d063cd8 851#else
852#define UNLINK unlink
853#endif
a687059c 854
fe14fcc3 855#ifndef HAS_SETREUID
85e6fe83 856# ifdef HAS_SETRESUID
857# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
858# define HAS_SETREUID
859# endif
a687059c 860#endif
fe14fcc3 861#ifndef HAS_SETREGID
85e6fe83 862# ifdef HAS_SETRESGID
863# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
864# define HAS_SETREGID
865# endif
a687059c 866#endif
ee0007ab 867
868#define SCAN_DEF 0
869#define SCAN_TR 1
870#define SCAN_REPL 2
79072805 871
872#ifdef DEBUGGING
4633a7c4 873# ifndef register
a0d0e21e 874# define register
875# endif
c07a80fd 876# ifdef MYMALLOC
0c30d9ec 877# ifndef DEBUGGING_MSTATS
878# define DEBUGGING_MSTATS
879# endif
c07a80fd 880# endif
a0d0e21e 881# define PAD_SV(po) pad_sv(po)
79072805 882#else
a0d0e21e 883# define PAD_SV(po) curpad[po]
79072805 884#endif
885
886/****************/
887/* Truly global */
888/****************/
889
890/* global state */
a0d0e21e 891EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec 892/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
893#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
79072805 894extern char ** environ; /* environment variables supplied via exec */
0c30d9ec 895#else
896# if defined(NeXT) && defined(__DYNAMIC__)
897
898# include <mach-o/dyld.h>
899EXT char *** environ_pointer;
900# define environ (*environ_pointer)
901# endif
902#endif /* environ processing */
903
79072805 904EXT int uid; /* current real user id */
905EXT int euid; /* current effective user id */
906EXT int gid; /* current real group id */
907EXT int egid; /* current effective group id */
908EXT bool nomemok; /* let malloc context handle nomem */
909EXT U32 an; /* malloc sequence number */
463ee0b2 910EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 911EXT U16 op_seqmax; /* op sequence number */
8990e307 912EXT U32 evalseq; /* eval sequence number */
463ee0b2 913EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805 914EXT char ** origenviron;
915EXT U32 origalen;
a0d0e21e 916EXT U32 * profiledata;
84ea024a 917EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 918EXT char * osname; /* operating system */
79072805 919
a0d0e21e 920EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
921EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307 922EXT double * xnv_root; /* free xnv list--shared by interpreters */
923EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
924EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 925EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd 926EXT char * nice_chunk; /* a nice chunk of memory to reuse */
927EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 928
79072805 929/* Stack for currently executing thread--context switch must handle this. */
930EXT SV ** stack_base; /* stack->array_ary */
931EXT SV ** stack_sp; /* stack pointer now */
932EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
933
934/* likewise for these */
935
936EXT OP * op; /* current op--oughta be in a global register */
937
938EXT I32 * scopestack; /* blocks we've entered */
939EXT I32 scopestack_ix;
940EXT I32 scopestack_max;
941
942EXT ANY* savestack; /* to save non-local values on */
943EXT I32 savestack_ix;
944EXT I32 savestack_max;
945
946EXT OP ** retstack; /* returns we've pushed */
947EXT I32 retstack_ix;
948EXT I32 retstack_max;
949
950EXT I32 * markstack; /* stackmarks we're remembering */
951EXT I32 * markstack_ptr; /* stackmarks we're remembering */
952EXT I32 * markstack_max; /* stackmarks we're remembering */
953
954EXT SV ** curpad;
955
956/* temp space */
957EXT SV * Sv;
958EXT XPV * Xpv;
f82b3d41 959EXT char buf[2048]; /* should be longer than PATH_MAX */
79072805 960EXT char tokenbuf[256];
961EXT struct stat statbuf;
ecfc5424 962#ifdef HAS_TIMES
79072805 963EXT struct tms timesbuf;
964#endif
463ee0b2 965EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805 966
967/* for tmp use in stupid debuggers */
968EXT int * di;
969EXT short * ds;
970EXT char * dc;
971
972/* handy constants */
973EXT char * Yes INIT("1");
974EXT char * No INIT("");
975EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
79072805 976EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
977EXT char * vert INIT("|");
978
8990e307 979EXT char warn_uninit[]
a0d0e21e 980 INIT("Use of uninitialized value");
463ee0b2 981EXT char warn_nosemi[]
982 INIT("Semicolon seems to be missing");
983EXT char warn_reserved[]
984 INIT("Unquoted string \"%s\" may clash with future reserved word");
985EXT char warn_nl[]
93a17b20 986 INIT("Unsuccessful %s on filename containing newline");
a0d0e21e 987EXT char no_wrongref[]
988 INIT("Can't use %s ref as %s ref");
989EXT char no_symref[]
748a9306 990 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
93a17b20 991EXT char no_usym[]
8990e307 992 INIT("Can't use an undefined value as %s reference");
93a17b20 993EXT char no_aelem[]
994 INIT("Modification of non-creatable array value attempted, subscript %d");
995EXT char no_helem[]
996 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
997EXT char no_modify[]
998 INIT("Modification of a read-only value attempted");
999EXT char no_mem[]
1000 INIT("Out of memory!\n");
1001EXT char no_security[]
463ee0b2 1002 INIT("Insecure dependency in %s%s");
93a17b20 1003EXT char no_sock_func[]
1004 INIT("Unsupported socket function \"%s\" called");
1005EXT char no_dir_func[]
1006 INIT("Unsupported directory function \"%s\" called");
1007EXT char no_func[]
1008 INIT("The %s function is unimplemented");
748a9306 1009EXT char no_myglob[]
1010 INIT("\"my\" variable %s can't be in a package");
93a17b20 1011
79072805 1012EXT SV sv_undef;
1013EXT SV sv_no;
1014EXT SV sv_yes;
1015#ifdef CSH
1016 EXT char * cshname INIT(CSH);
1017 EXT I32 cshlen;
1018#endif
1019
1020#ifdef DOINIT
8e07c86e 1021EXT char *sig_name[] = { SIG_NAME };
1022EXT int sig_num[] = { SIG_NUM };
0c30d9ec 1023EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1024EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805 1025#else
1026EXT char *sig_name[];
8e07c86e 1027EXT int sig_num[];
0c30d9ec 1028EXT SV * psig_ptr[];
1029EXT SV * psig_name[];
79072805 1030#endif
1031
1032#ifdef DOINIT
79072805 1033EXT unsigned char fold[] = { /* fast case folding table */
1034 0, 1, 2, 3, 4, 5, 6, 7,
1035 8, 9, 10, 11, 12, 13, 14, 15,
1036 16, 17, 18, 19, 20, 21, 22, 23,
1037 24, 25, 26, 27, 28, 29, 30, 31,
1038 32, 33, 34, 35, 36, 37, 38, 39,
1039 40, 41, 42, 43, 44, 45, 46, 47,
1040 48, 49, 50, 51, 52, 53, 54, 55,
1041 56, 57, 58, 59, 60, 61, 62, 63,
1042 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1043 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1044 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1045 'x', 'y', 'z', 91, 92, 93, 94, 95,
1046 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1047 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1048 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1049 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1050 128, 129, 130, 131, 132, 133, 134, 135,
1051 136, 137, 138, 139, 140, 141, 142, 143,
1052 144, 145, 146, 147, 148, 149, 150, 151,
1053 152, 153, 154, 155, 156, 157, 158, 159,
1054 160, 161, 162, 163, 164, 165, 166, 167,
1055 168, 169, 170, 171, 172, 173, 174, 175,
1056 176, 177, 178, 179, 180, 181, 182, 183,
1057 184, 185, 186, 187, 188, 189, 190, 191,
1058 192, 193, 194, 195, 196, 197, 198, 199,
1059 200, 201, 202, 203, 204, 205, 206, 207,
1060 208, 209, 210, 211, 212, 213, 214, 215,
1061 216, 217, 218, 219, 220, 221, 222, 223,
1062 224, 225, 226, 227, 228, 229, 230, 231,
1063 232, 233, 234, 235, 236, 237, 238, 239,
1064 240, 241, 242, 243, 244, 245, 246, 247,
1065 248, 249, 250, 251, 252, 253, 254, 255
1066};
1067#else
1068EXT unsigned char fold[];
1069#endif
1070
1071#ifdef DOINIT
1072EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
1073 1, 2, 84, 151, 154, 155, 156, 157,
1074 165, 246, 250, 3, 158, 7, 18, 29,
1075 40, 51, 62, 73, 85, 96, 107, 118,
1076 129, 140, 147, 148, 149, 150, 152, 153,
1077 255, 182, 224, 205, 174, 176, 180, 217,
1078 233, 232, 236, 187, 235, 228, 234, 226,
1079 222, 219, 211, 195, 188, 193, 185, 184,
1080 191, 183, 201, 229, 181, 220, 194, 162,
1081 163, 208, 186, 202, 200, 218, 198, 179,
1082 178, 214, 166, 170, 207, 199, 209, 206,
1083 204, 160, 212, 216, 215, 192, 175, 173,
1084 243, 172, 161, 190, 203, 189, 164, 230,
1085 167, 248, 227, 244, 242, 255, 241, 231,
1086 240, 253, 169, 210, 245, 237, 249, 247,
1087 239, 168, 252, 251, 254, 238, 223, 221,
1088 213, 225, 177, 197, 171, 196, 159, 4,
1089 5, 6, 8, 9, 10, 11, 12, 13,
1090 14, 15, 16, 17, 19, 20, 21, 22,
1091 23, 24, 25, 26, 27, 28, 30, 31,
1092 32, 33, 34, 35, 36, 37, 38, 39,
1093 41, 42, 43, 44, 45, 46, 47, 48,
1094 49, 50, 52, 53, 54, 55, 56, 57,
1095 58, 59, 60, 61, 63, 64, 65, 66,
1096 67, 68, 69, 70, 71, 72, 74, 75,
1097 76, 77, 78, 79, 80, 81, 82, 83,
1098 86, 87, 88, 89, 90, 91, 92, 93,
1099 94, 95, 97, 98, 99, 100, 101, 102,
1100 103, 104, 105, 106, 108, 109, 110, 111,
1101 112, 113, 114, 115, 116, 117, 119, 120,
1102 121, 122, 123, 124, 125, 126, 127, 128,
1103 130, 131, 132, 133, 134, 135, 136, 137,
1104 138, 139, 141, 142, 143, 144, 145, 146
1105};
1106#else
1107EXT unsigned char freq[];
1108#endif
1109
8990e307 1110#ifdef DEBUGGING
1111#ifdef DOINIT
1112EXT char* block_type[] = {
1113 "NULL",
1114 "SUB",
1115 "EVAL",
1116 "LOOP",
1117 "SUBST",
1118 "BLOCK",
1119};
1120#else
1121EXT char* block_type[];
1122#endif
1123#endif
1124
79072805 1125/*****************************************************************************/
1126/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1127/*****************************************************************************/
8990e307 1128/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1129
a0d0e21e 1130#include "perly.h"
1131
79072805 1132typedef enum {
1133 XOPERATOR,
1134 XTERM,
79072805 1135 XREF,
8990e307 1136 XSTATE,
a0d0e21e 1137 XBLOCK,
1138 XTERMBLOCK
79072805 1139} expectation;
1140
a0d0e21e 1141EXT U32 lex_state; /* next token is determined */
1142EXT U32 lex_defer; /* state after determined token */
1143EXT expectation lex_expect; /* expect after determined token */
1144EXT I32 lex_brackets; /* bracket count */
1145EXT I32 lex_formbrack; /* bracket count at outer format level */
1146EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1147EXT I32 lex_casemods; /* casemod count */
1148EXT I32 lex_dojoin; /* doing an array interpolation */
1149EXT I32 lex_starts; /* how many interps done on level */
1150EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1151EXT SV * lex_repl; /* runtime replacement from s/// */
1152EXT OP * lex_op; /* extra info to pass back on op */
1153EXT OP * lex_inpat; /* in pattern $) and $| are special */
1154EXT I32 lex_inwhat; /* what kind of quoting are we in */
1155EXT char * lex_brackstack; /* what kind of brackets to pop */
1156EXT char * lex_casestack; /* what kind of case mods in effect */
1157
1158/* What we know when we're in LEX_KNOWNEXT state. */
1159EXT YYSTYPE nextval[5]; /* value of next token, if any */
1160EXT I32 nexttype[5]; /* type of next token */
1161EXT I32 nexttoke;
1162
79072805 1163EXT FILE * VOL rsfp INIT(Nullfp);
1164EXT SV * linestr;
1165EXT char * bufptr;
1166EXT char * oldbufptr;
1167EXT char * oldoldbufptr;
1168EXT char * bufend;
8990e307 1169EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1170EXT AV * rsfp_filters;
79072805 1171
1172EXT I32 multi_start; /* 1st line of multi-line string */
1173EXT I32 multi_end; /* last line of multi-line string */
1174EXT I32 multi_open; /* delimiter of said string */
1175EXT I32 multi_close; /* delimiter of said string */
1176
1177EXT GV * scrgv;
1178EXT I32 error_count; /* how many errors so far, max 10 */
1179EXT I32 subline; /* line this subroutine began on */
1180EXT SV * subname; /* name of current subroutine */
1181
748a9306 1182EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1183EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307 1184EXT AV * comppad_name; /* variable names for "my" variables */
1185EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1186EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307 1187EXT I32 min_intro_pending;/* start of vars to introduce */
1188EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1189EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1190EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1191EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805 1192EXT COP compiling;
1193
79072805 1194EXT I32 thisexpr; /* name id for nothing_in_common() */
1195EXT char * last_uni; /* position of last named-unary operator */
1196EXT char * last_lop; /* position of last list operator */
8990e307 1197EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1198EXT bool in_my; /* we're compiling a "my" declaration */
79072805 1199#ifdef FCRYPT
1200EXT I32 cryptseen; /* has fast crypt() been initialized? */
1201#endif
1202
85e6fe83 1203EXT U32 hints; /* various compilation flags */
1204
1205 /* Note: the lowest 8 bits are reserved for
1206 stuffing into op->op_private */
1207#define HINT_INTEGER 0x00000001
1208#define HINT_STRICT_REFS 0x00000002
1209
1210#define HINT_BLOCK_SCOPE 0x00000100
1211#define HINT_STRICT_SUBS 0x00000200
1212#define HINT_STRICT_VARS 0x00000400
0c30d9ec 1213#define HINT_STRICT_UNTIE 0x00000800
85e6fe83 1214
79072805 1215/**************************************************************************/
1216/* This regexp stuff is global since it always happens within 1 expr eval */
1217/**************************************************************************/
1218
1219EXT char * regprecomp; /* uncompiled string. */
1220EXT char * regparse; /* Input-scan pointer. */
1221EXT char * regxend; /* End of input for compile */
1222EXT I32 regnpar; /* () count. */
1223EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1224EXT I32 regsize; /* Code size. */
a0d0e21e 1225EXT I32 regnaughty; /* How bad is this pattern? */
79072805 1226EXT I32 regsawback; /* Did we see \1, ...? */
1227
1228EXT char * reginput; /* String-input pointer. */
79072805 1229EXT char * regbol; /* Beginning of input, for ^ check. */
1230EXT char * regeol; /* End of input, for $ check. */
1231EXT char ** regstartp; /* Pointer to startp array. */
1232EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1233EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1234EXT char * regtill; /* How far we are required to go. */
a0d0e21e 1235EXT U16 regflags; /* are we folding, multilining? */
1236EXT char regprev; /* char before regbol, \n if none */
79072805 1237
1238/***********************************************/
1239/* Global only to current interpreter instance */
1240/***********************************************/
1241
8990e307 1242#ifdef MULTIPLICITY
79072805 1243#define IEXT
1244#define IINIT(x)
1245struct interpreter {
1246#else
1247#define IEXT EXT
1248#define IINIT(x) INIT(x)
1249#endif
1250
1251/* pseudo environmental stuff */
1252IEXT int Iorigargc;
1253IEXT char ** Iorigargv;
1254IEXT GV * Ienvgv;
1255IEXT GV * Isiggv;
1256IEXT GV * Iincgv;
1257IEXT char * Iorigfilename;
748a9306 1258IEXT SV * Idiehook;
1259IEXT SV * Iwarnhook;
1260IEXT SV * Iparsehook;
79072805 1261
c07a80fd 1262/* Various states of an input record separator SV (rs, nrs) */
1263#define RsSNARF(sv) (! SvOK(sv))
1264#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1265#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1266
79072805 1267/* switches */
1268IEXT char * Icddir;
1269IEXT bool Iminus_c;
a5f75d66 1270IEXT char Ipatchlevel[10];
728e2803 1271IEXT char ** Ilocalpatches;
c07a80fd 1272IEXT SV * Inrs;
2304df62 1273IEXT char * Isplitstr IINIT(" ");
79072805 1274IEXT bool Ipreprocess;
1275IEXT bool Iminus_n;
1276IEXT bool Iminus_p;
1277IEXT bool Iminus_l;
1278IEXT bool Iminus_a;
2304df62 1279IEXT bool Iminus_F;
79072805 1280IEXT bool Idoswitches;
1281IEXT bool Idowarn;
1282IEXT bool Idoextract;
79072805 1283IEXT bool Isawampersand; /* must save all match strings */
1284IEXT bool Isawstudy; /* do fbm_instr on all strings */
1285IEXT bool Isawi; /* study must assume case insensitive */
1286IEXT bool Isawvec;
1287IEXT bool Iunsafe;
1288IEXT bool Ido_undump; /* -u or dump seen? */
1289IEXT char * Iinplace;
1290IEXT char * Ie_tmpname;
1291IEXT FILE * Ie_fp;
1292IEXT VOL U32 Idebug;
1293IEXT U32 Iperldb;
748a9306 1294 /* This value may be raised by extensions for testing purposes */
1295IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
79072805 1296
1297/* magical thingies */
85e6fe83 1298IEXT Time_t Ibasetime; /* $^T */
79072805 1299IEXT SV * Iformfeed; /* $^L */
1300IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1301IEXT SV * Irs; /* $/ */
79072805 1302IEXT char * Iofs; /* $, */
8990e307 1303IEXT STRLEN Iofslen;
79072805 1304IEXT char * Iors; /* $\ */
8990e307 1305IEXT STRLEN Iorslen;
79072805 1306IEXT char * Iofmt; /* $# */
1307IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1308IEXT int Imultiline; /* $*--do strings hold >1 line? */
748a9306 1309IEXT U32 Istatusvalue; /* $? */
79072805 1310
1311IEXT struct stat Istatcache; /* _ */
1312IEXT GV * Istatgv;
1313IEXT SV * Istatname IINIT(Nullsv);
1314
1315/* shortcuts to various I/O objects */
1316IEXT GV * Istdingv;
1317IEXT GV * Ilast_in_gv;
1318IEXT GV * Idefgv;
1319IEXT GV * Iargvgv;
1320IEXT GV * Idefoutgv;
79072805 1321IEXT GV * Iargvoutgv;
1322
1323/* shortcuts to regexp stuff */
1324IEXT GV * Ileftgv;
1325IEXT GV * Iampergv;
1326IEXT GV * Irightgv;
1327IEXT PMOP * Icurpm; /* what to do \ interps from */
79072805 1328IEXT I32 * Iscreamfirst;
1329IEXT I32 * Iscreamnext;
1330IEXT I32 Imaxscream IINIT(-1);
1331IEXT SV * Ilastscream;
1332
4633a7c4 1333/* shortcuts to misc objects */
1334IEXT GV * Ierrgv;
1335
79072805 1336/* shortcuts to debugging objects */
1337IEXT GV * IDBgv;
1338IEXT GV * IDBline;
1339IEXT GV * IDBsub;
1340IEXT SV * IDBsingle;
1341IEXT SV * IDBtrace;
1342IEXT SV * IDBsignal;
1343IEXT AV * Ilineary; /* lines of script for debugger */
1344IEXT AV * Idbargs; /* args to call listed by caller function */
1345
1346/* symbol tables */
1347IEXT HV * Idefstash; /* main symbol table */
1348IEXT HV * Icurstash; /* symbol table for current package */
1349IEXT HV * Idebstash; /* symbol table for perldb package */
1350IEXT SV * Icurstname; /* name of current package */
93a17b20 1351IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1352IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1353IEXT HV * Istrtab; /* shared string table */
79072805 1354
1355/* memory management */
79072805 1356IEXT SV ** Itmps_stack;
1357IEXT I32 Itmps_ix IINIT(-1);
1358IEXT I32 Itmps_floor IINIT(-1);
8990e307 1359IEXT I32 Itmps_max;
1360IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1361IEXT I32 Isv_objcount; /* how many objects are currently allocated */
8990e307 1362IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1363IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
79072805 1364
1365/* funky return mechanisms */
1366IEXT I32 Ilastspbase;
1367IEXT I32 Ilastsize;
1368IEXT int Iforkprocess; /* so do_open |- can return proc# */
1369
1370/* subprocess state */
1371IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1372IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1373
1374/* internal state */
463ee0b2 1375IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1376IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1377IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1378IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1379IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1380IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1381IEXT bool Itainting; /* doing taint checks */
e50aee73 1382IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
79072805 1383
1384/* trace state */
1385IEXT I32 Idlevel;
1386IEXT I32 Idlmax IINIT(128);
1387IEXT char * Idebname;
1388IEXT char * Idebdelim;
1389
1390/* current interpreter roots */
748a9306 1391IEXT CV * Imain_cv;
463ee0b2 1392IEXT OP * Imain_root;
1393IEXT OP * Imain_start;
1394IEXT OP * Ieval_root;
1395IEXT OP * Ieval_start;
79072805 1396
1397/* runtime control stuff */
1398IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1399IEXT COP * Icurcopdb IINIT(NULL);
79072805 1400IEXT line_t Icopline IINIT(NOLINE);
1401IEXT CONTEXT * Icxstack;
1402IEXT I32 Icxstack_ix IINIT(-1);
1403IEXT I32 Icxstack_max IINIT(128);
a5f75d66 1404IEXT Sigjmp_buf Itop_env;
a0d0e21e 1405IEXT I32 Irunlevel;
79072805 1406
1407/* stack stuff */
0c30d9ec 1408IEXT AV * Icurstack; /* THE STACK */
79072805 1409IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1410IEXT SV ** Imystack_base; /* stack->array_ary */
1411IEXT SV ** Imystack_sp; /* stack pointer now */
1412IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1413
1414/* format accumulators */
463ee0b2 1415IEXT SV * Iformtarget;
1416IEXT SV * Ibodytarget;
1417IEXT SV * Itoptarget;
79072805 1418
1419/* statics moved here for shared library purposes */
93a17b20 1420IEXT SV Istrchop; /* return value from chop */
79072805 1421IEXT int Ifilemode; /* so nextargv() can preserve mode */
1422IEXT int Ilastfd; /* what to preserve mode on */
1423IEXT char * Ioldname; /* what to preserve mode on */
1424IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1425IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1426IEXT OP * Isortcop; /* user defined sort routine */
1427IEXT HV * Isortstash; /* which is in some package or other */
1428IEXT GV * Ifirstgv; /* $a */
1429IEXT GV * Isecondgv; /* $b */
1430IEXT AV * Isortstack; /* temp stack during pp_sort() */
1431IEXT AV * Isignalstack; /* temp stack during sighandler() */
1432IEXT SV * Imystrk; /* temp key string for do_each() */
1433IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
79072805 1434IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1435IEXT I32 Igensym; /* next symbol for getsym() to define */
1436IEXT bool Ipreambled;
3c81428c 1437IEXT AV * Ipreambleav;
79072805 1438IEXT int Ilaststatval IINIT(-1);
1439IEXT I32 Ilaststype IINIT(OP_STAT);
1440
1441#undef IEXT
1442#undef IINIT
1443
8990e307 1444#ifdef MULTIPLICITY
79072805 1445};
1446#else
1447struct interpreter {
1448 char broiled;
1449};
1450#endif
1451
1452#include "pp.h"
1453
1454#ifdef __cplusplus
1455extern "C" {
1456#endif
1457
a0d0e21e 1458#ifdef __cplusplus
1459# ifndef I_STDARG
1460# define I_STDARG 1
1461# endif
1462#endif
1463
1464#ifdef I_STDARG
2304df62 1465# include <stdarg.h>
1466#else
1467# ifdef I_VARARGS
1468# include <varargs.h>
1469# endif
1470#endif
1471
79072805 1472#include "proto.h"
1473
a0d0e21e 1474#ifdef EMBED
1475#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1476#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1477#else
1478#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1479#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1480#endif
1481
79072805 1482#ifdef __cplusplus
1483};
1484#endif
1485
93a17b20 1486/* The following must follow proto.h */
79072805 1487
1488#ifdef DOINIT
4633a7c4 1489EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2 1490 magic_set,
1491 magic_len,
1492 0, 0};
4633a7c4 1493EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1494EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83 1495 0, magic_clearenv,
1496 0};
4633a7c4 1497EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec 1498EXT MGVTBL vtbl_sigelem = {magic_getsig,
1499 magic_setsig,
1500 0, magic_clearsig,
1501 0};
4633a7c4 1502EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1503 0};
4633a7c4 1504EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2 1505 magic_setpack,
1506 0, magic_clearpack,
1507 0};
4633a7c4 1508EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1509 0, 0, 0};
4633a7c4 1510EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1511 0, 0, 0};
4633a7c4 1512EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1513 0, 0, 0};
4633a7c4 1514EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2 1515 magic_setarylen,
1516 0, 0, 0};
4633a7c4 1517EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2 1518 magic_setglob,
1519 0, 0, 0};
4633a7c4 1520EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1521 0, 0, 0};
4633a7c4 1522EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1523 0, 0, 0};
4633a7c4 1524EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1525 0, 0, 0};
4633a7c4 1526EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1527 0, 0, 0};
4633a7c4 1528EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e 1529 magic_setpos,
1530 0, 0, 0};
4633a7c4 1531EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1532 0, 0, 0};
4633a7c4 1533EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2 1534 magic_setuvar,
1535 0, 0, 0};
a0d0e21e 1536
1537#ifdef OVERLOAD
4633a7c4 1538EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1539 0, 0, magic_setamagic};
4633a7c4 1540EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1541 0, 0, magic_setamagic};
a0d0e21e 1542#endif /* OVERLOAD */
1543
79072805 1544#else
1545EXT MGVTBL vtbl_sv;
1546EXT MGVTBL vtbl_env;
1547EXT MGVTBL vtbl_envelem;
1548EXT MGVTBL vtbl_sig;
1549EXT MGVTBL vtbl_sigelem;
463ee0b2 1550EXT MGVTBL vtbl_pack;
1551EXT MGVTBL vtbl_packelem;
79072805 1552EXT MGVTBL vtbl_dbline;
463ee0b2 1553EXT MGVTBL vtbl_isa;
1554EXT MGVTBL vtbl_isaelem;
79072805 1555EXT MGVTBL vtbl_arylen;
1556EXT MGVTBL vtbl_glob;
93a17b20 1557EXT MGVTBL vtbl_mglob;
463ee0b2 1558EXT MGVTBL vtbl_taint;
79072805 1559EXT MGVTBL vtbl_substr;
1560EXT MGVTBL vtbl_vec;
a0d0e21e 1561EXT MGVTBL vtbl_pos;
79072805 1562EXT MGVTBL vtbl_bm;
1563EXT MGVTBL vtbl_uvar;
a0d0e21e 1564
1565#ifdef OVERLOAD
1566EXT MGVTBL vtbl_amagic;
1567EXT MGVTBL vtbl_amagicelem;
1568#endif /* OVERLOAD */
1569
79072805 1570#endif
85e6fe83 1571
a0d0e21e 1572#ifdef OVERLOAD
1573EXT long amagic_generation;
1574
748a9306 1575#define NofAMmeth 29
a0d0e21e 1576#ifdef DOINIT
1577EXT char * AMG_names[NofAMmeth][2] = {
1578 {"fallback","abs"},
1579 {"bool", "nomethod"},
1580 {"\"\"", "0+"},
1581 {"+","+="},
1582 {"-","-="},
1583 {"*", "*="},
1584 {"/", "/="},
1585 {"%", "%="},
1586 {"**", "**="},
1587 {"<<", "<<="},
1588 {">>", ">>="},
748a9306 1589 {"&", "&="},
1590 {"|", "|="},
1591 {"^", "^="},
a0d0e21e 1592 {"<", "<="},
1593 {">", ">="},
1594 {"==", "!="},
1595 {"<=>", "cmp"},
1596 {"lt", "le"},
1597 {"gt", "ge"},
1598 {"eq", "ne"},
a0d0e21e 1599 {"!", "~"},
1600 {"++", "--"},
1601 {"atan2", "cos"},
1602 {"sin", "exp"},
1603 {"log", "sqrt"},
1604 {"x","x="},
748a9306 1605 {".",".="},
1606 {"=","neg"}
a0d0e21e 1607};
1608#else
1609EXT char * AMG_names[NofAMmeth][2];
1610#endif /* def INITAMAGIC */
1611
1612struct am_table {
1613 long was_ok_sub;
1614 long was_ok_am;
1615 CV* table[NofAMmeth*2];
1616 long fallback;
1617};
1618typedef struct am_table AMT;
1619
1620#define AMGfallNEVER 1
1621#define AMGfallNO 2
1622#define AMGfallYES 3
1623
1624enum {
1625 fallback_amg, abs_amg,
1626 bool__amg, nomethod_amg,
1627 string_amg, numer_amg,
1628 add_amg, add_ass_amg,
1629 subtr_amg, subtr_ass_amg,
1630 mult_amg, mult_ass_amg,
1631 div_amg, div_ass_amg,
1632 mod_amg, mod_ass_amg,
1633 pow_amg, pow_ass_amg,
1634 lshift_amg, lshift_ass_amg,
1635 rshift_amg, rshift_ass_amg,
748a9306 1636 band_amg, band_ass_amg,
1637 bor_amg, bor_ass_amg,
1638 bxor_amg, bxor_ass_amg,
a0d0e21e 1639 lt_amg, le_amg,
1640 gt_amg, ge_amg,
1641 eq_amg, ne_amg,
1642 ncmp_amg, scmp_amg,
1643 slt_amg, sle_amg,
1644 sgt_amg, sge_amg,
1645 seq_amg, sne_amg,
a0d0e21e 1646 not_amg, compl_amg,
1647 inc_amg, dec_amg,
1648 atan2_amg, cos_amg,
1649 sin_amg, exp_amg,
1650 log_amg, sqrt_amg,
1651 repeat_amg, repeat_ass_amg,
748a9306 1652 concat_amg, concat_ass_amg,
1653 copy_amg, neg_amg
a0d0e21e 1654};
1655#endif /* OVERLOAD */
1656
85e6fe83 1657#endif /* Include guard */
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