release/src/router/pcre/pcre_internal.h

   1 /*************************************************
   2 *      Perl-Compatible Regular Expressions       *
   3 *************************************************/
   4
   5
   6 /* PCRE is a library of functions to support regular expressions whose syntax
   7 and semantics are as close as possible to those of the Perl 5 language.
   8
   9                        Written by Philip Hazel
  10            Copyright (c) 1997-2012 University of Cambridge
  11
  12 -----------------------------------------------------------------------------
  13 Redistribution and use in source and binary forms, with or without
  14 modification, are permitted provided that the following conditions are met:
  15
  16     * Redistributions of source code must retain the above copyright notice,
  17       this list of conditions and the following disclaimer.
  18
  19     * Redistributions in binary form must reproduce the above copyright
  20       notice, this list of conditions and the following disclaimer in the
  21       documentation and/or other materials provided with the distribution.
  22
  23     * Neither the name of the University of Cambridge nor the names of its
  24       contributors may be used to endorse or promote products derived from
  25       this software without specific prior written permission.
  26
  27 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  28 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  29 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  30 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  31 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  32 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  33 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  34 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  35 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  36 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  37 POSSIBILITY OF SUCH DAMAGE.
  38 -----------------------------------------------------------------------------
  39 */
  40
  41 /* This header contains definitions that are shared between the different
  42 modules, but which are not relevant to the exported API. This includes some
  43 functions whose names all begin with "_pcre_", "_pcre16_" or "_pcre32_"
  44 depending on the PRIV macro. */
  45
  46 #ifndef PCRE_INTERNAL_H
  47 #define PCRE_INTERNAL_H
  48
  49 /* Define PCRE_DEBUG to get debugging output on stdout. */
  50
  51 #if 0
  52 #define PCRE_DEBUG
  53 #endif
  54
  55 /* PCRE is compiled as an 8 bit library if it is not requested otherwise. */
  56
  57 #if !defined COMPILE_PCRE16 && !defined COMPILE_PCRE32
  58 #define COMPILE_PCRE8
  59 #endif
  60
  61 /* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
  62 "configure" script ensures this, but not everybody uses "configure". */
  63
  64 #if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
  65 #define SUPPORT_UTF 1
  66 #endif
  67
  68 /* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
  69 reasons with existing code. */
  70
  71 #if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
  72 #define SUPPORT_UTF 1
  73 #endif
  74
  75 /* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
  76 Until then we define it if SUPPORT_UTF is defined. */
  77
  78 #if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
  79 #define SUPPORT_UTF8 1
  80 #endif
  81
  82 /* We do not support both EBCDIC and UTF-8/16/32 at the same time. The "configure"
  83 script prevents both being selected, but not everybody uses "configure". */
  84
  85 #if defined EBCDIC && defined SUPPORT_UTF
  86 #error The use of both EBCDIC and SUPPORT_UTF is not supported.
  87 #endif
  88
  89 /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
  90 inline, and there are *still* stupid compilers about that don't like indented
  91 pre-processor statements, or at least there were when I first wrote this. After
  92 all, it had only been about 10 years then...
  93
  94 It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
  95 be absolutely sure we get our version. */
  96
  97 #undef DPRINTF
  98 #ifdef PCRE_DEBUG
  99 #define DPRINTF(p) printf p
 100 #else
 101 #define DPRINTF(p) /* Nothing */
 102 #endif
 103
 104
 105 /* Standard C headers plus the external interface definition. The only time
 106 setjmp and stdarg are used is when NO_RECURSE is set. */
 107
 108 #include <ctype.h>
 109 #include <limits.h>
 110 #include <stddef.h>
 111 #include <stdio.h>
 112 #include <stdlib.h>
 113 #include <string.h>
 114
 115 /* Valgrind (memcheck) support */
 116
 117 #ifdef SUPPORT_VALGRIND
 118 #include <valgrind/memcheck.h>
 119 #endif
 120
 121 /* When compiling a DLL for Windows, the exported symbols have to be declared
 122 using some MS magic. I found some useful information on this web page:
 123 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
 124 information there, using __declspec(dllexport) without "extern" we have a
 125 definition; with "extern" we have a declaration. The settings here override the
 126 setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
 127 which is all that is needed for applications (they just import the symbols). We
 128 use:
 129
 130   PCRE_EXP_DECL       for declarations
 131   PCRE_EXP_DEFN       for definitions of exported functions
 132   PCRE_EXP_DATA_DEFN  for definitions of exported variables
 133
 134 The reason for the two DEFN macros is that in non-Windows environments, one
 135 does not want to have "extern" before variable definitions because it leads to
 136 compiler warnings. So we distinguish between functions and variables. In
 137 Windows, the two should always be the same.
 138
 139 The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
 140 which is an application, but needs to import this file in order to "peek" at
 141 internals, can #include pcre.h first to get an application's-eye view.
 142
 143 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
 144 special-purpose environments) might want to stick other stuff in front of
 145 exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
 146 PCRE_EXP_DATA_DEFN only if they are not already set. */
 147
 148 #ifndef PCRE_EXP_DECL
 149 #  ifdef _WIN32
 150 #    ifndef PCRE_STATIC
 151 #      define PCRE_EXP_DECL       extern __declspec(dllexport)
 152 #      define PCRE_EXP_DEFN       __declspec(dllexport)
 153 #      define PCRE_EXP_DATA_DEFN  __declspec(dllexport)
 154 #    else
 155 #      define PCRE_EXP_DECL       extern
 156 #      define PCRE_EXP_DEFN
 157 #      define PCRE_EXP_DATA_DEFN
 158 #    endif
 159 #  else
 160 #    ifdef __cplusplus
 161 #      define PCRE_EXP_DECL       extern "C"
 162 #    else
 163 #      define PCRE_EXP_DECL       extern
 164 #    endif
 165 #    ifndef PCRE_EXP_DEFN
 166 #      define PCRE_EXP_DEFN       PCRE_EXP_DECL
 167 #    endif
 168 #    ifndef PCRE_EXP_DATA_DEFN
 169 #      define PCRE_EXP_DATA_DEFN
 170 #    endif
 171 #  endif
 172 #endif
 173
 174 /* When compiling with the MSVC compiler, it is sometimes necessary to include
 175 a "calling convention" before exported function names. (This is secondhand
 176 information; I know nothing about MSVC myself). For example, something like
 177
 178   void __cdecl function(....)
 179
 180 might be needed. In order so make this easy, all the exported functions have
 181 PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
 182 set, we ensure here that it has no effect. */
 183
 184 #ifndef PCRE_CALL_CONVENTION
 185 #define PCRE_CALL_CONVENTION
 186 #endif
 187
 188 /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
 189 cannot determine these outside the compilation (e.g. by running a program as
 190 part of "configure") because PCRE is often cross-compiled for use on other
 191 systems. Instead we make use of the maximum sizes that are available at
 192 preprocessor time in standard C environments. */
 193
 194 typedef unsigned char pcre_uint8;
 195
 196 #if USHRT_MAX == 65535
 197   typedef unsigned short pcre_uint16;
 198   typedef short pcre_int16;
 199 #elif UINT_MAX == 65535
 200   typedef unsigned int pcre_uint16;
 201   typedef int pcre_int16;
 202 #else
 203 # error Cannot determine a type for 16-bit unsigned integers
 204 #endif
 205
 206 #if UINT_MAX == 4294967295
 207   typedef unsigned int pcre_uint32;
 208   typedef int pcre_int32;
 209 #elif ULONG_MAX == 4294967295
 210   typedef unsigned long int pcre_uint32;
 211   typedef long int pcre_int32;
 212 #else
 213 # error Cannot determine a type for 32-bit unsigned integers
 214 #endif
 215
 216 /* When checking for integer overflow in pcre_compile(), we need to handle
 217 large integers. If a 64-bit integer type is available, we can use that.
 218 Otherwise we have to cast to double, which of course requires floating point
 219 arithmetic. Handle this by defining a macro for the appropriate type. If
 220 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
 221 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
 222 by "configure". */
 223
 224 #if defined HAVE_STDINT_H
 225 #include <stdint.h>
 226 #elif defined HAVE_INTTYPES_H
 227 #include <inttypes.h>
 228 #endif
 229
 230 #if defined INT64_MAX || defined int64_t
 231 #define INT64_OR_DOUBLE int64_t
 232 #else
 233 #define INT64_OR_DOUBLE double
 234 #endif
 235
 236 /* All character handling must be done as unsigned characters. Otherwise there
 237 are problems with top-bit-set characters and functions such as isspace().
 238 However, we leave the interface to the outside world as char * or short *,
 239 because that should make things easier for callers. This character type is
 240 called pcre_uchar.
 241
 242 The IN_UCHARS macro multiply its argument with the byte size of the current
 243 pcre_uchar type. Useful for memcpy and such operations, whose require the
 244 byte size of their input/output buffers.
 245
 246 The MAX_255 macro checks whether its pcre_uchar input is less than 256.
 247
 248 The TABLE_GET macro is designed for accessing elements of tables whose contain
 249 exactly 256 items. When the character is able to contain more than 256
 250 items, some check is needed before accessing these tables.
 251 */
 252
 253 #if defined COMPILE_PCRE8
 254
 255 typedef unsigned char pcre_uchar;
 256 #define IN_UCHARS(x) (x)
 257 #define MAX_255(c) 1
 258 #define TABLE_GET(c, table, default) ((table)[c])
 259
 260 #elif defined COMPILE_PCRE16
 261
 262 #if USHRT_MAX != 65535
 263 /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
 264 pcre.h(.in) and disable (comment out) this message. */
 265 #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
 266 #endif
 267
 268 typedef pcre_uint16 pcre_uchar;
 269 #define UCHAR_SHIFT (1)
 270 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
 271 #define MAX_255(c) ((c) <= 255u)
 272 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
 273
 274 #elif defined COMPILE_PCRE32
 275
 276 typedef pcre_uint32 pcre_uchar;
 277 #define UCHAR_SHIFT (2)
 278 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
 279 #define MAX_255(c) ((c) <= 255u)
 280 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
 281
 282 #else
 283 #error Unsupported compiling mode
 284 #endif /* COMPILE_PCRE[8|16|32] */
 285
 286 /* This is an unsigned int value that no character can ever have. UTF-8
 287 characters only go up to 0x7fffffff (though Unicode doesn't go beyond
 288 0x0010ffff). */
 289
 290 #define NOTACHAR 0xffffffff
 291
 292 /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
 293 "any" and "anycrlf" at present). The following macros are used to package up
 294 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
 295 modules to indicate in which datablock the parameters exist, and what the
 296 start/end of string field names are. */
 297
 298 #define NLTYPE_FIXED    0     /* Newline is a fixed length string */
 299 #define NLTYPE_ANY      1     /* Newline is any Unicode line ending */
 300 #define NLTYPE_ANYCRLF  2     /* Newline is CR, LF, or CRLF */
 301
 302 /* This macro checks for a newline at the given position */
 303
 304 #define IS_NEWLINE(p) \
 305   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
 306     ((p) < NLBLOCK->PSEND && \
 307      PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
 308        &(NLBLOCK->nllen), utf)) \
 309     : \
 310     ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
 311      RAWUCHARTEST(p) == NLBLOCK->nl[0] && \
 312      (NLBLOCK->nllen == 1 || RAWUCHARTEST(p+1) == NLBLOCK->nl[1])       \
 313     ) \
 314   )
 315
 316 /* This macro checks for a newline immediately preceding the given position */
 317
 318 #define WAS_NEWLINE(p) \
 319   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
 320     ((p) > NLBLOCK->PSSTART && \
 321      PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
 322        &(NLBLOCK->nllen), utf)) \
 323     : \
 324     ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
 325      RAWUCHARTEST(p - NLBLOCK->nllen) == NLBLOCK->nl[0] &&              \
 326      (NLBLOCK->nllen == 1 || RAWUCHARTEST(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
 327     ) \
 328   )
 329
 330 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
 331 with a custom type. This makes it possible, for example, to allow pcre_exec()
 332 to process subject strings that are discontinuous by using a smart pointer
 333 class. It must always be possible to inspect all of the subject string in
 334 pcre_exec() because of the way it backtracks. Two macros are required in the
 335 normal case, for sign-unspecified and unsigned char pointers. The former is
 336 used for the external interface and appears in pcre.h, which is why its name
 337 must begin with PCRE_. */
 338
 339 #ifdef CUSTOM_SUBJECT_PTR
 340 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
 341 #else
 342 #define PCRE_PUCHAR const pcre_uchar *
 343 #endif
 344
 345 /* Include the public PCRE header and the definitions of UCP character property
 346 values. */
 347
 348 #include "pcre.h"
 349 #include "ucp.h"
 350
 351 #ifdef COMPILE_PCRE32
 352 /* Assert that the public PCRE_UCHAR32 is a 32-bit type */
 353 typedef int __assert_pcre_uchar32_size[sizeof(PCRE_UCHAR32) == 4 ? 1 : -1];
 354 #endif
 355
 356 /* When compiling for use with the Virtual Pascal compiler, these functions
 357 need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
 358 option on the command line. */
 359
 360 #ifdef VPCOMPAT
 361 #define strlen(s)        _strlen(s)
 362 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
 363 #define memcmp(s,c,n)    _memcmp(s,c,n)
 364 #define memcpy(d,s,n)    _memcpy(d,s,n)
 365 #define memmove(d,s,n)   _memmove(d,s,n)
 366 #define memset(s,c,n)    _memset(s,c,n)
 367 #else  /* VPCOMPAT */
 368
 369 /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
 370 define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
 371 is set. Otherwise, include an emulating function for those systems that have
 372 neither (there some non-Unix environments where this is the case). */
 373
 374 #ifndef HAVE_MEMMOVE
 375 #undef  memmove        /* some systems may have a macro */
 376 #ifdef HAVE_BCOPY
 377 #define memmove(a, b, c) bcopy(b, a, c)
 378 #else  /* HAVE_BCOPY */
 379 static void *
 380 pcre_memmove(void *d, const void *s, size_t n)
 381 {
 382 size_t i;
 383 unsigned char *dest = (unsigned char *)d;
 384 const unsigned char *src = (const unsigned char *)s;
 385 if (dest > src)
 386   {
 387   dest += n;
 388   src += n;
 389   for (i = 0; i < n; ++i) *(--dest) = *(--src);
 390   return (void *)dest;
 391   }
 392 else
 393   {
 394   for (i = 0; i < n; ++i) *dest++ = *src++;
 395   return (void *)(dest - n);
 396   }
 397 }
 398 #define memmove(a, b, c) pcre_memmove(a, b, c)
 399 #endif   /* not HAVE_BCOPY */
 400 #endif   /* not HAVE_MEMMOVE */
 401 #endif   /* not VPCOMPAT */
 402
 403
 404 /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
 405 in big-endian order) by default. These are used, for example, to link from the
 406 start of a subpattern to its alternatives and its end. The use of 2 bytes per
 407 offset limits the size of the compiled regex to around 64K, which is big enough
 408 for almost everybody. However, I received a request for an even bigger limit.
 409 For this reason, and also to make the code easier to maintain, the storing and
 410 loading of offsets from the byte string is now handled by the macros that are
 411 defined here.
 412
 413 The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
 414 the config.h file, but can be overridden by using -D on the command line. This
 415 is automated on Unix systems via the "configure" command. */
 416
 417 #if defined COMPILE_PCRE8
 418
 419 #if LINK_SIZE == 2
 420
 421 #define PUT(a,n,d)   \
 422   (a[n] = (d) >> 8), \
 423   (a[(n)+1] = (d) & 255)
 424
 425 #define GET(a,n) \
 426   (((a)[n] << 8) | (a)[(n)+1])
 427
 428 #define MAX_PATTERN_SIZE (1 << 16)
 429
 430
 431 #elif LINK_SIZE == 3
 432
 433 #define PUT(a,n,d)       \
 434   (a[n] = (d) >> 16),    \
 435   (a[(n)+1] = (d) >> 8), \
 436   (a[(n)+2] = (d) & 255)
 437
 438 #define GET(a,n) \
 439   (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
 440
 441 #define MAX_PATTERN_SIZE (1 << 24)
 442
 443
 444 #elif LINK_SIZE == 4
 445
 446 #define PUT(a,n,d)        \
 447   (a[n] = (d) >> 24),     \
 448   (a[(n)+1] = (d) >> 16), \
 449   (a[(n)+2] = (d) >> 8),  \
 450   (a[(n)+3] = (d) & 255)
 451
 452 #define GET(a,n) \
 453   (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
 454
 455 /* Keep it positive */
 456 #define MAX_PATTERN_SIZE (1 << 30)
 457
 458 #else
 459 #error LINK_SIZE must be either 2, 3, or 4
 460 #endif
 461
 462 #elif defined COMPILE_PCRE16
 463
 464 #if LINK_SIZE == 2
 465
 466 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
 467 #undef LINK_SIZE
 468 #define LINK_SIZE 1
 469
 470 #define PUT(a,n,d)   \
 471   (a[n] = (d))
 472
 473 #define GET(a,n) \
 474   (a[n])
 475
 476 #define MAX_PATTERN_SIZE (1 << 16)
 477
 478 #elif LINK_SIZE == 3 || LINK_SIZE == 4
 479
 480 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
 481 #undef LINK_SIZE
 482 #define LINK_SIZE 2
 483
 484 #define PUT(a,n,d)   \
 485   (a[n] = (d) >> 16), \
 486   (a[(n)+1] = (d) & 65535)
 487
 488 #define GET(a,n) \
 489   (((a)[n] << 16) | (a)[(n)+1])
 490
 491 /* Keep it positive */
 492 #define MAX_PATTERN_SIZE (1 << 30)
 493
 494 #else
 495 #error LINK_SIZE must be either 2, 3, or 4
 496 #endif
 497
 498 #elif defined COMPILE_PCRE32
 499
 500 /* Only supported LINK_SIZE is 4 */
 501 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
 502 #undef LINK_SIZE
 503 #define LINK_SIZE 1
 504
 505 #define PUT(a,n,d)   \
 506   (a[n] = (d))
 507
 508 #define GET(a,n) \
 509   (a[n])
 510
 511 /* Keep it positive */
 512 #define MAX_PATTERN_SIZE (1 << 30)
 513
 514 #else
 515 #error Unsupported compiling mode
 516 #endif /* COMPILE_PCRE[8|16|32] */
 517
 518 /* Convenience macro defined in terms of the others */
 519
 520 #define PUTINC(a,n,d)   PUT(a,n,d), a += LINK_SIZE
 521
 522
 523 /* PCRE uses some other 2-byte quantities that do not change when the size of
 524 offsets changes. There are used for repeat counts and for other things such as
 525 capturing parenthesis numbers in back references. */
 526
 527 #if defined COMPILE_PCRE8
 528
 529 #define IMM2_SIZE 2
 530
 531 #define PUT2(a,n,d)   \
 532   a[n] = (d) >> 8; \
 533   a[(n)+1] = (d) & 255
 534
 535 /* For reasons that I do not understand, the expression in this GET2 macro is
 536 treated by gcc as a signed expression, even when a is declared as unsigned. It
 537 seems that any kind of arithmetic results in a signed value. */
 538
 539 #define GET2(a,n) \
 540   (unsigned int)(((a)[n] << 8) | (a)[(n)+1])
 541
 542 #elif defined COMPILE_PCRE16
 543
 544 #define IMM2_SIZE 1
 545
 546 #define PUT2(a,n,d)   \
 547    a[n] = d
 548
 549 #define GET2(a,n) \
 550    a[n]
 551
 552 #elif defined COMPILE_PCRE32
 553
 554 #define IMM2_SIZE 1
 555
 556 #define PUT2(a,n,d)   \
 557    a[n] = d
 558
 559 #define GET2(a,n) \
 560    a[n]
 561
 562 #else
 563 #error Unsupported compiling mode
 564 #endif /* COMPILE_PCRE[8|16|32] */
 565
 566 #define PUT2INC(a,n,d)  PUT2(a,n,d), a += IMM2_SIZE
 567
 568 /* The maximum length of a MARK name is currently one data unit; it may be
 569 changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
 570
 571 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
 572 #define MAX_MARK ((1u << 16) - 1)
 573 #else
 574 #define MAX_MARK ((1u << 8) - 1)
 575 #endif
 576
 577 /* When UTF encoding is being used, a character is no longer just a single
 578 byte. The macros for character handling generate simple sequences when used in
 579 character-mode, and more complicated ones for UTF characters. GETCHARLENTEST
 580 and other macros are not used when UTF is not supported, so they are not
 581 defined. To make sure they can never even appear when UTF support is omitted,
 582 we don't even define them. */
 583
 584 #ifndef SUPPORT_UTF
 585
 586 /* #define MAX_VALUE_FOR_SINGLE_CHAR */
 587 /* #define HAS_EXTRALEN(c) */
 588 /* #define GET_EXTRALEN(c) */
 589 /* #define NOT_FIRSTCHAR(c) */
 590 #define GETCHAR(c, eptr) c = *eptr;
 591 #define GETCHARTEST(c, eptr) c = *eptr;
 592 #define GETCHARINC(c, eptr) c = *eptr++;
 593 #define GETCHARINCTEST(c, eptr) c = *eptr++;
 594 #define GETCHARLEN(c, eptr, len) c = *eptr;
 595 #define RAWUCHAR(eptr) (*(eptr))
 596 #define RAWUCHARINC(eptr) (*(eptr)++)
 597 #define RAWUCHARTEST(eptr) (*(eptr))
 598 #define RAWUCHARINCTEST(eptr) (*(eptr)++)
 599 /* #define GETCHARLENTEST(c, eptr, len) */
 600 /* #define BACKCHAR(eptr) */
 601 /* #define FORWARDCHAR(eptr) */
 602 /* #define ACROSSCHAR(condition, eptr, action) */
 603
 604 #else   /* SUPPORT_UTF */
 605
 606 /* Tests whether the code point needs extra characters to decode. */
 607
 608 #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
 609
 610 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
 611 advancing the pointer. */
 612
 613 #define GETUTF8(c, eptr) \
 614     { \
 615     if ((c & 0x20) == 0) \
 616       c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
 617     else if ((c & 0x10) == 0) \
 618       c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
 619     else if ((c & 0x08) == 0) \
 620       c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
 621       ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
 622     else if ((c & 0x04) == 0) \
 623       c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
 624           ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
 625           (eptr[4] & 0x3f); \
 626     else \
 627       c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
 628           ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
 629           ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
 630     }
 631
 632 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
 633 the pointer. */
 634
 635 #define GETUTF8INC(c, eptr) \
 636     { \
 637     if ((c & 0x20) == 0) \
 638       c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
 639     else if ((c & 0x10) == 0) \
 640       { \
 641       c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
 642       eptr += 2; \
 643       } \
 644     else if ((c & 0x08) == 0) \
 645       { \
 646       c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
 647           ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
 648       eptr += 3; \
 649       } \
 650     else if ((c & 0x04) == 0) \
 651       { \
 652       c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
 653           ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
 654           (eptr[3] & 0x3f); \
 655       eptr += 4; \
 656       } \
 657     else \
 658       { \
 659       c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
 660           ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
 661           ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
 662       eptr += 5; \
 663       } \
 664     }
 665
 666 #if defined COMPILE_PCRE8
 667
 668 /* These macros were originally written in the form of loops that used data
 669 from the tables whose names start with PRIV(utf8_table). They were rewritten by
 670 a user so as not to use loops, because in some environments this gives a
 671 significant performance advantage, and it seems never to do any harm. */
 672
 673 /* Tells the biggest code point which can be encoded as a single character. */
 674
 675 #define MAX_VALUE_FOR_SINGLE_CHAR 127
 676
 677 /* Tests whether the code point needs extra characters to decode. */
 678
 679 #define HAS_EXTRALEN(c) ((c) >= 0xc0)
 680
 681 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
 682 Otherwise it has an undefined behaviour. */
 683
 684 #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
 685
 686 /* Returns TRUE, if the given character is not the first character
 687 of a UTF sequence. */
 688
 689 #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
 690
 691 /* Get the next UTF-8 character, not advancing the pointer. This is called when
 692 we know we are in UTF-8 mode. */
 693
 694 #define GETCHAR(c, eptr) \
 695   c = *eptr; \
 696   if (c >= 0xc0) GETUTF8(c, eptr);
 697
 698 /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
 699 pointer. */
 700
 701 #define GETCHARTEST(c, eptr) \
 702   c = *eptr; \
 703   if (utf && c >= 0xc0) GETUTF8(c, eptr);
 704
 705 /* Get the next UTF-8 character, advancing the pointer. This is called when we
 706 know we are in UTF-8 mode. */
 707
 708 #define GETCHARINC(c, eptr) \
 709   c = *eptr++; \
 710   if (c >= 0xc0) GETUTF8INC(c, eptr);
 711
 712 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
 713 This is called when we don't know if we are in UTF-8 mode. */
 714
 715 #define GETCHARINCTEST(c, eptr) \
 716   c = *eptr++; \
 717   if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
 718
 719 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
 720 advancing the pointer, incrementing the length. */
 721
 722 #define GETUTF8LEN(c, eptr, len) \
 723     { \
 724     if ((c & 0x20) == 0) \
 725       { \
 726       c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
 727       len++; \
 728       } \
 729     else if ((c & 0x10)  == 0) \
 730       { \
 731       c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
 732       len += 2; \
 733       } \
 734     else if ((c & 0x08)  == 0) \
 735       {\
 736       c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
 737           ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
 738       len += 3; \
 739       } \
 740     else if ((c & 0x04)  == 0) \
 741       { \
 742       c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
 743           ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
 744           (eptr[4] & 0x3f); \
 745       len += 4; \
 746       } \
 747     else \
 748       {\
 749       c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
 750           ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
 751           ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
 752       len += 5; \
 753       } \
 754     }
 755
 756 /* Get the next UTF-8 character, not advancing the pointer, incrementing length
 757 if there are extra bytes. This is called when we know we are in UTF-8 mode. */
 758
 759 #define GETCHARLEN(c, eptr, len) \
 760   c = *eptr; \
 761   if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
 762
 763 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
 764 pointer, incrementing length if there are extra bytes. This is called when we
 765 do not know if we are in UTF-8 mode. */
 766
 767 #define GETCHARLENTEST(c, eptr, len) \
 768   c = *eptr; \
 769   if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
 770
 771 /* Returns the next uchar, not advancing the pointer. This is called when
 772 we know we are in UTF mode. */
 773
 774 #define RAWUCHAR(eptr) \
 775   (*(eptr))
 776
 777 /* Returns the next uchar, advancing the pointer. This is called when
 778 we know we are in UTF mode. */
 779
 780 #define RAWUCHARINC(eptr) \
 781   (*((eptr)++))
 782
 783 /* Returns the next uchar, testing for UTF mode, and not advancing the
 784 pointer. */
 785
 786 #define RAWUCHARTEST(eptr) \
 787   (*(eptr))
 788
 789 /* Returns the next uchar, testing for UTF mode, advancing the
 790 pointer. */
 791
 792 #define RAWUCHARINCTEST(eptr) \
 793   (*((eptr)++))
 794
 795 /* If the pointer is not at the start of a character, move it back until
 796 it is. This is called only in UTF-8 mode - we don't put a test within the macro
 797 because almost all calls are already within a block of UTF-8 only code. */
 798
 799 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
 800
 801 /* Same as above, just in the other direction. */
 802 #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
 803
 804 /* Same as above, but it allows a fully customizable form. */
 805 #define ACROSSCHAR(condition, eptr, action) \
 806   while((condition) && ((eptr) & 0xc0) == 0x80) action
 807
 808 #elif defined COMPILE_PCRE16
 809
 810 /* Tells the biggest code point which can be encoded as a single character. */
 811
 812 #define MAX_VALUE_FOR_SINGLE_CHAR 65535
 813
 814 /* Tests whether the code point needs extra characters to decode. */
 815
 816 #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
 817
 818 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
 819 Otherwise it has an undefined behaviour. */
 820
 821 #define GET_EXTRALEN(c) 1
 822
 823 /* Returns TRUE, if the given character is not the first character
 824 of a UTF sequence. */
 825
 826 #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
 827
 828 /* Base macro to pick up the low surrogate of a UTF-16 character, not
 829 advancing the pointer. */
 830
 831 #define GETUTF16(c, eptr) \
 832    { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
 833
 834 /* Get the next UTF-16 character, not advancing the pointer. This is called when
 835 we know we are in UTF-16 mode. */
 836
 837 #define GETCHAR(c, eptr) \
 838   c = *eptr; \
 839   if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
 840
 841 /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
 842 pointer. */
 843
 844 #define GETCHARTEST(c, eptr) \
 845   c = *eptr; \
 846   if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
 847
 848 /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
 849 the pointer. */
 850
 851 #define GETUTF16INC(c, eptr) \
 852    { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
 853
 854 /* Get the next UTF-16 character, advancing the pointer. This is called when we
 855 know we are in UTF-16 mode. */
 856
 857 #define GETCHARINC(c, eptr) \
 858   c = *eptr++; \
 859   if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
 860
 861 /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
 862 This is called when we don't know if we are in UTF-16 mode. */
 863
 864 #define GETCHARINCTEST(c, eptr) \
 865   c = *eptr++; \
 866   if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
 867
 868 /* Base macro to pick up the low surrogate of a UTF-16 character, not
 869 advancing the pointer, incrementing the length. */
 870
 871 #define GETUTF16LEN(c, eptr, len) \
 872    { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
 873
 874 /* Get the next UTF-16 character, not advancing the pointer, incrementing
 875 length if there is a low surrogate. This is called when we know we are in
 876 UTF-16 mode. */
 877
 878 #define GETCHARLEN(c, eptr, len) \
 879   c = *eptr; \
 880   if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
 881
 882 /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
 883 pointer, incrementing length if there is a low surrogate. This is called when
 884 we do not know if we are in UTF-16 mode. */
 885
 886 #define GETCHARLENTEST(c, eptr, len) \
 887   c = *eptr; \
 888   if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
 889
 890 /* Returns the next uchar, not advancing the pointer. This is called when
 891 we know we are in UTF mode. */
 892
 893 #define RAWUCHAR(eptr) \
 894   (*(eptr))
 895
 896 /* Returns the next uchar, advancing the pointer. This is called when
 897 we know we are in UTF mode. */
 898
 899 #define RAWUCHARINC(eptr) \
 900   (*((eptr)++))
 901
 902 /* Returns the next uchar, testing for UTF mode, and not advancing the
 903 pointer. */
 904
 905 #define RAWUCHARTEST(eptr) \
 906   (*(eptr))
 907
 908 /* Returns the next uchar, testing for UTF mode, advancing the
 909 pointer. */
 910
 911 #define RAWUCHARINCTEST(eptr) \
 912   (*((eptr)++))
 913
 914 /* If the pointer is not at the start of a character, move it back until
 915 it is. This is called only in UTF-16 mode - we don't put a test within the
 916 macro because almost all calls are already within a block of UTF-16 only
 917 code. */
 918
 919 #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
 920
 921 /* Same as above, just in the other direction. */
 922 #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
 923
 924 /* Same as above, but it allows a fully customizable form. */
 925 #define ACROSSCHAR(condition, eptr, action) \
 926   if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
 927
 928 #elif defined COMPILE_PCRE32
 929
 930 /* These are trivial for the 32-bit library, since all UTF-32 characters fit
 931 into one pcre_uchar unit. */
 932 #define MAX_VALUE_FOR_SINGLE_CHAR (0x10ffffu)
 933 #define HAS_EXTRALEN(c) (0)
 934 #define GET_EXTRALEN(c) (0)
 935 #define NOT_FIRSTCHAR(c) (0)
 936
 937 /* Get the next UTF-32 character, not advancing the pointer. This is called when
 938 we know we are in UTF-32 mode. */
 939
 940 #define GETCHAR(c, eptr) \
 941   c = *(eptr);
 942
 943 /* Get the next UTF-32 character, testing for UTF-32 mode, and not advancing the
 944 pointer. */
 945
 946 #define GETCHARTEST(c, eptr) \
 947   c = *(eptr);
 948
 949 /* Get the next UTF-32 character, advancing the pointer. This is called when we
 950 know we are in UTF-32 mode. */
 951
 952 #define GETCHARINC(c, eptr) \
 953   c = *((eptr)++);
 954
 955 /* Get the next character, testing for UTF-32 mode, and advancing the pointer.
 956 This is called when we don't know if we are in UTF-32 mode. */
 957
 958 #define GETCHARINCTEST(c, eptr) \
 959   c = *((eptr)++);
 960
 961 /* Get the next UTF-32 character, not advancing the pointer, not incrementing
 962 length (since all UTF-32 is of length 1). This is called when we know we are in
 963 UTF-32 mode. */
 964
 965 #define GETCHARLEN(c, eptr, len) \
 966   GETCHAR(c, eptr)
 967
 968 /* Get the next UTF-32character, testing for UTF-32 mode, not advancing the
 969 pointer, not incrementing the length (since all UTF-32 is of length 1).
 970 This is called when we do not know if we are in UTF-32 mode. */
 971
 972 #define GETCHARLENTEST(c, eptr, len) \
 973   GETCHARTEST(c, eptr)
 974
 975 /* Returns the next uchar, not advancing the pointer. This is called when
 976 we know we are in UTF mode. */
 977
 978 #define RAWUCHAR(eptr) \
 979   (*(eptr))
 980
 981 /* Returns the next uchar, advancing the pointer. This is called when
 982 we know we are in UTF mode. */
 983
 984 #define RAWUCHARINC(eptr) \
 985   (*((eptr)++))
 986
 987 /* Returns the next uchar, testing for UTF mode, and not advancing the
 988 pointer. */
 989
 990 #define RAWUCHARTEST(eptr) \
 991   (*(eptr))
 992
 993 /* Returns the next uchar, testing for UTF mode, advancing the
 994 pointer. */
 995
 996 #define RAWUCHARINCTEST(eptr) \
 997   (*((eptr)++))
 998
 999 /* If the pointer is not at the start of a character, move it back until
1000 it is. This is called only in UTF-32 mode - we don't put a test within the
1001 macro because almost all calls are already within a block of UTF-32 only
1002 code.
1003 These are all no-ops since all UTF-32 characters fit into one pcre_uchar. */
1004
1005 #define BACKCHAR(eptr) do { } while (0)
1006
1007 /* Same as above, just in the other direction. */
1008 #define FORWARDCHAR(eptr) do { } while (0)
1009
1010 /* Same as above, but it allows a fully customizable form. */
1011 #define ACROSSCHAR(condition, eptr, action) do { } while (0)
1012
1013 #else
1014 #error Unsupported compiling mode
1015 #endif /* COMPILE_PCRE[8|16|32] */
1016
1017 #endif  /* SUPPORT_UTF */
1018
1019 /* Tests for Unicode horizontal and vertical whitespace characters must check a
1020 number of different values. Using a switch statement for this generates the
1021 fastest code (no loop, no memory access), and there are several places in the
1022 interpreter code where this happens. In order to ensure that all the case lists
1023 remain in step, we use macros so that there is only one place where the lists
1024 are defined.
1025
1026 These values are also required as lists in pcre_compile.c when processing \h,
1027 \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
1028 macros that define the values are here so that all the definitions are
1029 together. The lists must be in ascending character order, terminated by
1030 NOTACHAR (which is 0xffffffff).
1031
1032 Any changes should ensure that the various macros are kept in step with each
1033 other. NOTE: The values also appear in pcre_jit_compile.c. */
1034
1035 /* ------ ASCII/Unicode environments ------ */
1036
1037 #ifndef EBCDIC
1038
1039 #define HSPACE_LIST \
1040   CHAR_HT, CHAR_SPACE, 0xa0, \
1041   0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
1042   0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
1043   NOTACHAR
1044
1045 #define HSPACE_MULTIBYTE_CASES \
1046   case 0x1680:  /* OGHAM SPACE MARK */ \
1047   case 0x180e:  /* MONGOLIAN VOWEL SEPARATOR */ \
1048   case 0x2000:  /* EN QUAD */ \
1049   case 0x2001:  /* EM QUAD */ \
1050   case 0x2002:  /* EN SPACE */ \
1051   case 0x2003:  /* EM SPACE */ \
1052   case 0x2004:  /* THREE-PER-EM SPACE */ \
1053   case 0x2005:  /* FOUR-PER-EM SPACE */ \
1054   case 0x2006:  /* SIX-PER-EM SPACE */ \
1055   case 0x2007:  /* FIGURE SPACE */ \
1056   case 0x2008:  /* PUNCTUATION SPACE */ \
1057   case 0x2009:  /* THIN SPACE */ \
1058   case 0x200A:  /* HAIR SPACE */ \
1059   case 0x202f:  /* NARROW NO-BREAK SPACE */ \
1060   case 0x205f:  /* MEDIUM MATHEMATICAL SPACE */ \
1061   case 0x3000   /* IDEOGRAPHIC SPACE */
1062
1063 #define HSPACE_BYTE_CASES \
1064   case CHAR_HT: \
1065   case CHAR_SPACE: \
1066   case 0xa0     /* NBSP */
1067
1068 #define HSPACE_CASES \
1069   HSPACE_BYTE_CASES: \
1070   HSPACE_MULTIBYTE_CASES
1071
1072 #define VSPACE_LIST \
1073   CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
1074
1075 #define VSPACE_MULTIBYTE_CASES \
1076   case 0x2028:    /* LINE SEPARATOR */ \
1077   case 0x2029     /* PARAGRAPH SEPARATOR */
1078
1079 #define VSPACE_BYTE_CASES \
1080   case CHAR_LF: \
1081   case CHAR_VT: \
1082   case CHAR_FF: \
1083   case CHAR_CR: \
1084   case CHAR_NEL
1085
1086 #define VSPACE_CASES \
1087   VSPACE_BYTE_CASES: \
1088   VSPACE_MULTIBYTE_CASES
1089
1090 /* ------ EBCDIC environments ------ */
1091
1092 #else
1093 #define HSPACE_LIST CHAR_HT, CHAR_SPACE
1094
1095 #define HSPACE_BYTE_CASES \
1096   case CHAR_HT: \
1097   case CHAR_SPACE
1098
1099 #define HSPACE_CASES HSPACE_BYTE_CASES
1100
1101 #ifdef EBCDIC_NL25
1102 #define VSPACE_LIST \
1103   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
1104 #else
1105 #define VSPACE_LIST \
1106   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
1107 #endif
1108
1109 #define VSPACE_BYTE_CASES \
1110   case CHAR_LF: \
1111   case CHAR_VT: \
1112   case CHAR_FF: \
1113   case CHAR_CR: \
1114   case CHAR_NEL
1115
1116 #define VSPACE_CASES VSPACE_BYTE_CASES
1117 #endif  /* EBCDIC */
1118
1119 /* ------ End of whitespace macros ------ */
1120
1121
1122
1123 /* Private flags containing information about the compiled regex. They used to
1124 live at the top end of the options word, but that got almost full, so now they
1125 are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
1126 the restrictions on partial matching have been lifted. It remains for backwards
1127 compatibility. */
1128
1129 #define PCRE_MODE8         0x0001  /* compiled in 8 bit mode */
1130 #define PCRE_MODE16        0x0002  /* compiled in 16 bit mode */
1131 #define PCRE_MODE32        0x0004  /* compiled in 32 bit mode */
1132 #define PCRE_FIRSTSET      0x0010  /* first_char is set */
1133 #define PCRE_FCH_CASELESS  0x0020  /* caseless first char */
1134 #define PCRE_REQCHSET      0x0040  /* req_byte is set */
1135 #define PCRE_RCH_CASELESS  0x0080  /* caseless requested char */
1136 #define PCRE_STARTLINE     0x0100  /* start after \n for multiline */
1137 #define PCRE_NOPARTIAL     0x0200  /* can't use partial with this regex */
1138 #define PCRE_JCHANGED      0x0400  /* j option used in regex */
1139 #define PCRE_HASCRORLF     0x0800  /* explicit \r or \n in pattern */
1140 #define PCRE_HASTHEN       0x1000  /* pattern contains (*THEN) */
1141
1142 #if defined COMPILE_PCRE8
1143 #define PCRE_MODE          PCRE_MODE8
1144 #elif defined COMPILE_PCRE16
1145 #define PCRE_MODE          PCRE_MODE16
1146 #elif defined COMPILE_PCRE32
1147 #define PCRE_MODE          PCRE_MODE32
1148 #endif
1149 #define PCRE_MODE_MASK     (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
1150
1151 /* Flags for the "extra" block produced by pcre_study(). */
1152
1153 #define PCRE_STUDY_MAPPED  0x0001  /* a map of starting chars exists */
1154 #define PCRE_STUDY_MINLEN  0x0002  /* a minimum length field exists */
1155
1156 /* Masks for identifying the public options that are permitted at compile
1157 time, run time, or study time, respectively. */
1158
1159 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
1160                            PCRE_NEWLINE_ANYCRLF)
1161
1162 #define PUBLIC_COMPILE_OPTIONS \
1163   (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
1164    PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
1165    PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1166    PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1167    PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
1168
1169 #define PUBLIC_EXEC_OPTIONS \
1170   (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1171    PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
1172    PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
1173
1174 #define PUBLIC_DFA_EXEC_OPTIONS \
1175   (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1176    PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
1177    PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1178    PCRE_NO_START_OPTIMIZE)
1179
1180 #define PUBLIC_STUDY_OPTIONS \
1181    (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
1182     PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1183
1184 #define PUBLIC_JIT_EXEC_OPTIONS \
1185    (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
1186     PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
1187
1188 /* Magic number to provide a small check against being handed junk. */
1189
1190 #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
1191
1192 /* This variable is used to detect a loaded regular expression
1193 in different endianness. */
1194
1195 #define REVERSED_MAGIC_NUMBER  0x45524350UL   /* 'ERCP' */
1196
1197 /* The maximum remaining length of subject we are prepared to search for a
1198 req_byte match. */
1199
1200 #define REQ_BYTE_MAX 1000
1201
1202 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1203 environments where these macros are defined elsewhere. Unfortunately, there
1204 is no way to do the same for the typedef. */
1205
1206 typedef int BOOL;
1207
1208 #ifndef FALSE
1209 #define FALSE   0
1210 #define TRUE    1
1211 #endif
1212
1213 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1214 character constants like '*' because the compiler would emit their EBCDIC code,
1215 which is different from their ASCII/UTF-8 code. Instead we define macros for
1216 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1217 is enabled. When UTF-8 support is not enabled, the definitions use character
1218 literals. Both character and string versions of each character are needed, and
1219 there are some longer strings as well.
1220
1221 This means that, on EBCDIC platforms, the PCRE library can handle either
1222 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1223 would need different lookups depending on whether PCRE_UTF8 was set or not.
1224 This would make it impossible to use characters in switch/case statements,
1225 which would reduce performance. For a theoretical use (which nobody has asked
1226 for) in a minority area (EBCDIC platforms), this is not sensible. Any
1227 application that did need both could compile two versions of the library, using
1228 macros to give the functions distinct names. */
1229
1230 #ifndef SUPPORT_UTF
1231
1232 /* UTF-8 support is not enabled; use the platform-dependent character literals
1233 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1234 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1235 characters, a common practice has been to use its NL (0x15) character as the
1236 line terminator in C-like processing environments. However, sometimes the LF
1237 (0x25) character is used instead, according to this Unicode document:
1238
1239 http://unicode.org/standard/reports/tr13/tr13-5.html
1240
1241 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1242 instead. Whichever is *not* chosen is defined as NEL.
1243
1244 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1245 same code point. */
1246
1247 #ifdef EBCDIC
1248
1249 #ifndef EBCDIC_NL25
1250 #define CHAR_NL                     '\x15'
1251 #define CHAR_NEL                    '\x25'
1252 #define STR_NL                      "\x15"
1253 #define STR_NEL                     "\x25"
1254 #else
1255 #define CHAR_NL                     '\x25'
1256 #define CHAR_NEL                    '\x15'
1257 #define STR_NL                      "\x25"
1258 #define STR_NEL                     "\x15"
1259 #endif
1260
1261 #define CHAR_LF                     CHAR_NL
1262 #define STR_LF                      STR_NL
1263
1264 #define CHAR_ESC                    '\047'
1265 #define CHAR_DEL                    '\007'
1266 #define STR_ESC                     "\047"
1267 #define STR_DEL                     "\007"
1268
1269 #else  /* Not EBCDIC */
1270
1271 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1272 compatibility. NEL is the Unicode newline character; make sure it is
1273 a positive value. */
1274
1275 #define CHAR_LF                     '\n'
1276 #define CHAR_NL                     CHAR_LF
1277 #define CHAR_NEL                    ((unsigned char)'\x85')
1278 #define CHAR_ESC                    '\033'
1279 #define CHAR_DEL                    '\177'
1280
1281 #define STR_LF                      "\n"
1282 #define STR_NL                      STR_LF
1283 #define STR_NEL                     "\x85"
1284 #define STR_ESC                     "\033"
1285 #define STR_DEL                     "\177"
1286
1287 #endif  /* EBCDIC */
1288
1289 /* The remaining definitions work in both environments. */
1290
1291 #define CHAR_NULL                   '\0'
1292 #define CHAR_HT                     '\t'
1293 #define CHAR_VT                     '\v'
1294 #define CHAR_FF                     '\f'
1295 #define CHAR_CR                     '\r'
1296 #define CHAR_BS                     '\b'
1297 #define CHAR_BEL                    '\a'
1298
1299 #define CHAR_SPACE                  ' '
1300 #define CHAR_EXCLAMATION_MARK       '!'
1301 #define CHAR_QUOTATION_MARK         '"'
1302 #define CHAR_NUMBER_SIGN            '#'
1303 #define CHAR_DOLLAR_SIGN            '$'
1304 #define CHAR_PERCENT_SIGN           '%'
1305 #define CHAR_AMPERSAND              '&'
1306 #define CHAR_APOSTROPHE             '\''
1307 #define CHAR_LEFT_PARENTHESIS       '('
1308 #define CHAR_RIGHT_PARENTHESIS      ')'
1309 #define CHAR_ASTERISK               '*'
1310 #define CHAR_PLUS                   '+'
1311 #define CHAR_COMMA                  ','
1312 #define CHAR_MINUS                  '-'
1313 #define CHAR_DOT                    '.'
1314 #define CHAR_SLASH                  '/'
1315 #define CHAR_0                      '0'
1316 #define CHAR_1                      '1'
1317 #define CHAR_2                      '2'
1318 #define CHAR_3                      '3'
1319 #define CHAR_4                      '4'
1320 #define CHAR_5                      '5'
1321 #define CHAR_6                      '6'
1322 #define CHAR_7                      '7'
1323 #define CHAR_8                      '8'
1324 #define CHAR_9                      '9'
1325 #define CHAR_COLON                  ':'
1326 #define CHAR_SEMICOLON              ';'
1327 #define CHAR_LESS_THAN_SIGN         '<'
1328 #define CHAR_EQUALS_SIGN            '='
1329 #define CHAR_GREATER_THAN_SIGN      '>'
1330 #define CHAR_QUESTION_MARK          '?'
1331 #define CHAR_COMMERCIAL_AT          '@'
1332 #define CHAR_A                      'A'
1333 #define CHAR_B                      'B'
1334 #define CHAR_C                      'C'
1335 #define CHAR_D                      'D'
1336 #define CHAR_E                      'E'
1337 #define CHAR_F                      'F'
1338 #define CHAR_G                      'G'
1339 #define CHAR_H                      'H'
1340 #define CHAR_I                      'I'
1341 #define CHAR_J                      'J'
1342 #define CHAR_K                      'K'
1343 #define CHAR_L                      'L'
1344 #define CHAR_M                      'M'
1345 #define CHAR_N                      'N'
1346 #define CHAR_O                      'O'
1347 #define CHAR_P                      'P'
1348 #define CHAR_Q                      'Q'
1349 #define CHAR_R                      'R'
1350 #define CHAR_S                      'S'
1351 #define CHAR_T                      'T'
1352 #define CHAR_U                      'U'
1353 #define CHAR_V                      'V'
1354 #define CHAR_W                      'W'
1355 #define CHAR_X                      'X'
1356 #define CHAR_Y                      'Y'
1357 #define CHAR_Z                      'Z'
1358 #define CHAR_LEFT_SQUARE_BRACKET    '['
1359 #define CHAR_BACKSLASH              '\\'
1360 #define CHAR_RIGHT_SQUARE_BRACKET   ']'
1361 #define CHAR_CIRCUMFLEX_ACCENT      '^'
1362 #define CHAR_UNDERSCORE             '_'
1363 #define CHAR_GRAVE_ACCENT           '`'
1364 #define CHAR_a                      'a'
1365 #define CHAR_b                      'b'
1366 #define CHAR_c                      'c'
1367 #define CHAR_d                      'd'
1368 #define CHAR_e                      'e'
1369 #define CHAR_f                      'f'
1370 #define CHAR_g                      'g'
1371 #define CHAR_h                      'h'
1372 #define CHAR_i                      'i'
1373 #define CHAR_j                      'j'
1374 #define CHAR_k                      'k'
1375 #define CHAR_l                      'l'
1376 #define CHAR_m                      'm'
1377 #define CHAR_n                      'n'
1378 #define CHAR_o                      'o'
1379 #define CHAR_p                      'p'
1380 #define CHAR_q                      'q'
1381 #define CHAR_r                      'r'
1382 #define CHAR_s                      's'
1383 #define CHAR_t                      't'
1384 #define CHAR_u                      'u'
1385 #define CHAR_v                      'v'
1386 #define CHAR_w                      'w'
1387 #define CHAR_x                      'x'
1388 #define CHAR_y                      'y'
1389 #define CHAR_z                      'z'
1390 #define CHAR_LEFT_CURLY_BRACKET     '{'
1391 #define CHAR_VERTICAL_LINE          '|'
1392 #define CHAR_RIGHT_CURLY_BRACKET    '}'
1393 #define CHAR_TILDE                  '~'
1394
1395 #define STR_HT                      "\t"
1396 #define STR_VT                      "\v"
1397 #define STR_FF                      "\f"
1398 #define STR_CR                      "\r"
1399 #define STR_BS                      "\b"
1400 #define STR_BEL                     "\a"
1401
1402 #define STR_SPACE                   " "
1403 #define STR_EXCLAMATION_MARK        "!"
1404 #define STR_QUOTATION_MARK          "\""
1405 #define STR_NUMBER_SIGN             "#"
1406 #define STR_DOLLAR_SIGN             "$"
1407 #define STR_PERCENT_SIGN            "%"
1408 #define STR_AMPERSAND               "&"
1409 #define STR_APOSTROPHE              "'"
1410 #define STR_LEFT_PARENTHESIS        "("
1411 #define STR_RIGHT_PARENTHESIS       ")"
1412 #define STR_ASTERISK                "*"
1413 #define STR_PLUS                    "+"
1414 #define STR_COMMA                   ","
1415 #define STR_MINUS                   "-"
1416 #define STR_DOT                     "."
1417 #define STR_SLASH                   "/"
1418 #define STR_0                       "0"
1419 #define STR_1                       "1"
1420 #define STR_2                       "2"
1421 #define STR_3                       "3"
1422 #define STR_4                       "4"
1423 #define STR_5                       "5"
1424 #define STR_6                       "6"
1425 #define STR_7                       "7"
1426 #define STR_8                       "8"
1427 #define STR_9                       "9"
1428 #define STR_COLON                   ":"
1429 #define STR_SEMICOLON               ";"
1430 #define STR_LESS_THAN_SIGN          "<"
1431 #define STR_EQUALS_SIGN             "="
1432 #define STR_GREATER_THAN_SIGN       ">"
1433 #define STR_QUESTION_MARK           "?"
1434 #define STR_COMMERCIAL_AT           "@"
1435 #define STR_A                       "A"
1436 #define STR_B                       "B"
1437 #define STR_C                       "C"
1438 #define STR_D                       "D"
1439 #define STR_E                       "E"
1440 #define STR_F                       "F"
1441 #define STR_G                       "G"
1442 #define STR_H                       "H"
1443 #define STR_I                       "I"
1444 #define STR_J                       "J"
1445 #define STR_K                       "K"
1446 #define STR_L                       "L"
1447 #define STR_M                       "M"
1448 #define STR_N                       "N"
1449 #define STR_O                       "O"
1450 #define STR_P                       "P"
1451 #define STR_Q                       "Q"
1452 #define STR_R                       "R"
1453 #define STR_S                       "S"
1454 #define STR_T                       "T"
1455 #define STR_U                       "U"
1456 #define STR_V                       "V"
1457 #define STR_W                       "W"
1458 #define STR_X                       "X"
1459 #define STR_Y                       "Y"
1460 #define STR_Z                       "Z"
1461 #define STR_LEFT_SQUARE_BRACKET     "["
1462 #define STR_BACKSLASH               "\\"
1463 #define STR_RIGHT_SQUARE_BRACKET    "]"
1464 #define STR_CIRCUMFLEX_ACCENT       "^"
1465 #define STR_UNDERSCORE              "_"
1466 #define STR_GRAVE_ACCENT            "`"
1467 #define STR_a                       "a"
1468 #define STR_b                       "b"
1469 #define STR_c                       "c"
1470 #define STR_d                       "d"
1471 #define STR_e                       "e"
1472 #define STR_f                       "f"
1473 #define STR_g                       "g"
1474 #define STR_h                       "h"
1475 #define STR_i                       "i"
1476 #define STR_j                       "j"
1477 #define STR_k                       "k"
1478 #define STR_l                       "l"
1479 #define STR_m                       "m"
1480 #define STR_n                       "n"
1481 #define STR_o                       "o"
1482 #define STR_p                       "p"
1483 #define STR_q                       "q"
1484 #define STR_r                       "r"
1485 #define STR_s                       "s"
1486 #define STR_t                       "t"
1487 #define STR_u                       "u"
1488 #define STR_v                       "v"
1489 #define STR_w                       "w"
1490 #define STR_x                       "x"
1491 #define STR_y                       "y"
1492 #define STR_z                       "z"
1493 #define STR_LEFT_CURLY_BRACKET      "{"
1494 #define STR_VERTICAL_LINE           "|"
1495 #define STR_RIGHT_CURLY_BRACKET     "}"
1496 #define STR_TILDE                   "~"
1497
1498 #define STRING_ACCEPT0              "ACCEPT\0"
1499 #define STRING_COMMIT0              "COMMIT\0"
1500 #define STRING_F0                   "F\0"
1501 #define STRING_FAIL0                "FAIL\0"
1502 #define STRING_MARK0                "MARK\0"
1503 #define STRING_PRUNE0               "PRUNE\0"
1504 #define STRING_SKIP0                "SKIP\0"
1505 #define STRING_THEN                 "THEN"
1506
1507 #define STRING_alpha0               "alpha\0"
1508 #define STRING_lower0               "lower\0"
1509 #define STRING_upper0               "upper\0"
1510 #define STRING_alnum0               "alnum\0"
1511 #define STRING_ascii0               "ascii\0"
1512 #define STRING_blank0               "blank\0"
1513 #define STRING_cntrl0               "cntrl\0"
1514 #define STRING_digit0               "digit\0"
1515 #define STRING_graph0               "graph\0"
1516 #define STRING_print0               "print\0"
1517 #define STRING_punct0               "punct\0"
1518 #define STRING_space0               "space\0"
1519 #define STRING_word0                "word\0"
1520 #define STRING_xdigit               "xdigit"
1521
1522 #define STRING_DEFINE               "DEFINE"
1523
1524 #define STRING_CR_RIGHTPAR             "CR)"
1525 #define STRING_LF_RIGHTPAR             "LF)"
1526 #define STRING_CRLF_RIGHTPAR           "CRLF)"
1527 #define STRING_ANY_RIGHTPAR            "ANY)"
1528 #define STRING_ANYCRLF_RIGHTPAR        "ANYCRLF)"
1529 #define STRING_BSR_ANYCRLF_RIGHTPAR    "BSR_ANYCRLF)"
1530 #define STRING_BSR_UNICODE_RIGHTPAR    "BSR_UNICODE)"
1531 #define STRING_UTF8_RIGHTPAR           "UTF8)"
1532 #define STRING_UTF16_RIGHTPAR          "UTF16)"
1533 #define STRING_UTF32_RIGHTPAR          "UTF32)"
1534 #define STRING_UTF_RIGHTPAR            "UTF)"
1535 #define STRING_UCP_RIGHTPAR            "UCP)"
1536 #define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"
1537
1538 #else  /* SUPPORT_UTF */
1539
1540 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1541 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1542 only. */
1543
1544 #define CHAR_HT                     '\011'
1545 #define CHAR_VT                     '\013'
1546 #define CHAR_FF                     '\014'
1547 #define CHAR_CR                     '\015'
1548 #define CHAR_LF                     '\012'
1549 #define CHAR_NL                     CHAR_LF
1550 #define CHAR_NEL                    ((unsigned char)'\x85')
1551 #define CHAR_BS                     '\010'
1552 #define CHAR_BEL                    '\007'
1553 #define CHAR_ESC                    '\033'
1554 #define CHAR_DEL                    '\177'
1555
1556 #define CHAR_NULL                   '\0'
1557 #define CHAR_SPACE                  '\040'
1558 #define CHAR_EXCLAMATION_MARK       '\041'
1559 #define CHAR_QUOTATION_MARK         '\042'
1560 #define CHAR_NUMBER_SIGN            '\043'
1561 #define CHAR_DOLLAR_SIGN            '\044'
1562 #define CHAR_PERCENT_SIGN           '\045'
1563 #define CHAR_AMPERSAND              '\046'
1564 #define CHAR_APOSTROPHE             '\047'
1565 #define CHAR_LEFT_PARENTHESIS       '\050'
1566 #define CHAR_RIGHT_PARENTHESIS      '\051'
1567 #define CHAR_ASTERISK               '\052'
1568 #define CHAR_PLUS                   '\053'
1569 #define CHAR_COMMA                  '\054'
1570 #define CHAR_MINUS                  '\055'
1571 #define CHAR_DOT                    '\056'
1572 #define CHAR_SLASH                  '\057'
1573 #define CHAR_0                      '\060'
1574 #define CHAR_1                      '\061'
1575 #define CHAR_2                      '\062'
1576 #define CHAR_3                      '\063'
1577 #define CHAR_4                      '\064'
1578 #define CHAR_5                      '\065'
1579 #define CHAR_6                      '\066'
1580 #define CHAR_7                      '\067'
1581 #define CHAR_8                      '\070'
1582 #define CHAR_9                      '\071'
1583 #define CHAR_COLON                  '\072'
1584 #define CHAR_SEMICOLON              '\073'
1585 #define CHAR_LESS_THAN_SIGN         '\074'
1586 #define CHAR_EQUALS_SIGN            '\075'
1587 #define CHAR_GREATER_THAN_SIGN      '\076'
1588 #define CHAR_QUESTION_MARK          '\077'
1589 #define CHAR_COMMERCIAL_AT          '\100'
1590 #define CHAR_A                      '\101'
1591 #define CHAR_B                      '\102'
1592 #define CHAR_C                      '\103'
1593 #define CHAR_D                      '\104'
1594 #define CHAR_E                      '\105'
1595 #define CHAR_F                      '\106'
1596 #define CHAR_G                      '\107'
1597 #define CHAR_H                      '\110'
1598 #define CHAR_I                      '\111'
1599 #define CHAR_J                      '\112'
1600 #define CHAR_K                      '\113'
1601 #define CHAR_L                      '\114'
1602 #define CHAR_M                      '\115'
1603 #define CHAR_N                      '\116'
1604 #define CHAR_O                      '\117'
1605 #define CHAR_P                      '\120'
1606 #define CHAR_Q                      '\121'
1607 #define CHAR_R                      '\122'
1608 #define CHAR_S                      '\123'
1609 #define CHAR_T                      '\124'
1610 #define CHAR_U                      '\125'
1611 #define CHAR_V                      '\126'
1612 #define CHAR_W                      '\127'
1613 #define CHAR_X                      '\130'
1614 #define CHAR_Y                      '\131'
1615 #define CHAR_Z                      '\132'
1616 #define CHAR_LEFT_SQUARE_BRACKET    '\133'
1617 #define CHAR_BACKSLASH              '\134'
1618 #define CHAR_RIGHT_SQUARE_BRACKET   '\135'
1619 #define CHAR_CIRCUMFLEX_ACCENT      '\136'
1620 #define CHAR_UNDERSCORE             '\137'
1621 #define CHAR_GRAVE_ACCENT           '\140'
1622 #define CHAR_a                      '\141'
1623 #define CHAR_b                      '\142'
1624 #define CHAR_c                      '\143'
1625 #define CHAR_d                      '\144'
1626 #define CHAR_e                      '\145'
1627 #define CHAR_f                      '\146'
1628 #define CHAR_g                      '\147'
1629 #define CHAR_h                      '\150'
1630 #define CHAR_i                      '\151'
1631 #define CHAR_j                      '\152'
1632 #define CHAR_k                      '\153'
1633 #define CHAR_l                      '\154'
1634 #define CHAR_m                      '\155'
1635 #define CHAR_n                      '\156'
1636 #define CHAR_o                      '\157'
1637 #define CHAR_p                      '\160'
1638 #define CHAR_q                      '\161'
1639 #define CHAR_r                      '\162'
1640 #define CHAR_s                      '\163'
1641 #define CHAR_t                      '\164'
1642 #define CHAR_u                      '\165'
1643 #define CHAR_v                      '\166'
1644 #define CHAR_w                      '\167'
1645 #define CHAR_x                      '\170'
1646 #define CHAR_y                      '\171'
1647 #define CHAR_z                      '\172'
1648 #define CHAR_LEFT_CURLY_BRACKET     '\173'
1649 #define CHAR_VERTICAL_LINE          '\174'
1650 #define CHAR_RIGHT_CURLY_BRACKET    '\175'
1651 #define CHAR_TILDE                  '\176'
1652
1653 #define STR_HT                      "\011"
1654 #define STR_VT                      "\013"
1655 #define STR_FF                      "\014"
1656 #define STR_CR                      "\015"
1657 #define STR_NL                      "\012"
1658 #define STR_BS                      "\010"
1659 #define STR_BEL                     "\007"
1660 #define STR_ESC                     "\033"
1661 #define STR_DEL                     "\177"
1662
1663 #define STR_SPACE                   "\040"
1664 #define STR_EXCLAMATION_MARK        "\041"
1665 #define STR_QUOTATION_MARK          "\042"
1666 #define STR_NUMBER_SIGN             "\043"
1667 #define STR_DOLLAR_SIGN             "\044"
1668 #define STR_PERCENT_SIGN            "\045"
1669 #define STR_AMPERSAND               "\046"
1670 #define STR_APOSTROPHE              "\047"
1671 #define STR_LEFT_PARENTHESIS        "\050"
1672 #define STR_RIGHT_PARENTHESIS       "\051"
1673 #define STR_ASTERISK                "\052"
1674 #define STR_PLUS                    "\053"
1675 #define STR_COMMA                   "\054"
1676 #define STR_MINUS                   "\055"
1677 #define STR_DOT                     "\056"
1678 #define STR_SLASH                   "\057"
1679 #define STR_0                       "\060"
1680 #define STR_1                       "\061"
1681 #define STR_2                       "\062"
1682 #define STR_3                       "\063"
1683 #define STR_4                       "\064"
1684 #define STR_5                       "\065"
1685 #define STR_6                       "\066"
1686 #define STR_7                       "\067"
1687 #define STR_8                       "\070"
1688 #define STR_9                       "\071"
1689 #define STR_COLON                   "\072"
1690 #define STR_SEMICOLON               "\073"
1691 #define STR_LESS_THAN_SIGN          "\074"
1692 #define STR_EQUALS_SIGN             "\075"
1693 #define STR_GREATER_THAN_SIGN       "\076"
1694 #define STR_QUESTION_MARK           "\077"
1695 #define STR_COMMERCIAL_AT           "\100"
1696 #define STR_A                       "\101"
1697 #define STR_B                       "\102"
1698 #define STR_C                       "\103"
1699 #define STR_D                       "\104"
1700 #define STR_E                       "\105"
1701 #define STR_F                       "\106"
1702 #define STR_G                       "\107"
1703 #define STR_H                       "\110"
1704 #define STR_I                       "\111"
1705 #define STR_J                       "\112"
1706 #define STR_K                       "\113"
1707 #define STR_L                       "\114"
1708 #define STR_M                       "\115"
1709 #define STR_N                       "\116"
1710 #define STR_O                       "\117"
1711 #define STR_P                       "\120"
1712 #define STR_Q                       "\121"
1713 #define STR_R                       "\122"
1714 #define STR_S                       "\123"
1715 #define STR_T                       "\124"
1716 #define STR_U                       "\125"
1717 #define STR_V                       "\126"
1718 #define STR_W                       "\127"
1719 #define STR_X                       "\130"
1720 #define STR_Y                       "\131"
1721 #define STR_Z                       "\132"
1722 #define STR_LEFT_SQUARE_BRACKET     "\133"
1723 #define STR_BACKSLASH               "\134"
1724 #define STR_RIGHT_SQUARE_BRACKET    "\135"
1725 #define STR_CIRCUMFLEX_ACCENT       "\136"
1726 #define STR_UNDERSCORE              "\137"
1727 #define STR_GRAVE_ACCENT            "\140"
1728 #define STR_a                       "\141"
1729 #define STR_b                       "\142"
1730 #define STR_c                       "\143"
1731 #define STR_d                       "\144"
1732 #define STR_e                       "\145"
1733 #define STR_f                       "\146"
1734 #define STR_g                       "\147"
1735 #define STR_h                       "\150"
1736 #define STR_i                       "\151"
1737 #define STR_j                       "\152"
1738 #define STR_k                       "\153"
1739 #define STR_l                       "\154"
1740 #define STR_m                       "\155"
1741 #define STR_n                       "\156"
1742 #define STR_o                       "\157"
1743 #define STR_p                       "\160"
1744 #define STR_q                       "\161"
1745 #define STR_r                       "\162"
1746 #define STR_s                       "\163"
1747 #define STR_t                       "\164"
1748 #define STR_u                       "\165"
1749 #define STR_v                       "\166"
1750 #define STR_w                       "\167"
1751 #define STR_x                       "\170"
1752 #define STR_y                       "\171"
1753 #define STR_z                       "\172"
1754 #define STR_LEFT_CURLY_BRACKET      "\173"
1755 #define STR_VERTICAL_LINE           "\174"
1756 #define STR_RIGHT_CURLY_BRACKET     "\175"
1757 #define STR_TILDE                   "\176"
1758
1759 #define STRING_ACCEPT0              STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1760 #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1761 #define STRING_F0                   STR_F "\0"
1762 #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"
1763 #define STRING_MARK0                STR_M STR_A STR_R STR_K "\0"
1764 #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"
1765 #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"
1766 #define STRING_THEN                 STR_T STR_H STR_E STR_N
1767
1768 #define STRING_alpha0               STR_a STR_l STR_p STR_h STR_a "\0"
1769 #define STRING_lower0               STR_l STR_o STR_w STR_e STR_r "\0"
1770 #define STRING_upper0               STR_u STR_p STR_p STR_e STR_r "\0"
1771 #define STRING_alnum0               STR_a STR_l STR_n STR_u STR_m "\0"
1772 #define STRING_ascii0               STR_a STR_s STR_c STR_i STR_i "\0"
1773 #define STRING_blank0               STR_b STR_l STR_a STR_n STR_k "\0"
1774 #define STRING_cntrl0               STR_c STR_n STR_t STR_r STR_l "\0"
1775 #define STRING_digit0               STR_d STR_i STR_g STR_i STR_t "\0"
1776 #define STRING_graph0               STR_g STR_r STR_a STR_p STR_h "\0"
1777 #define STRING_print0               STR_p STR_r STR_i STR_n STR_t "\0"
1778 #define STRING_punct0               STR_p STR_u STR_n STR_c STR_t "\0"
1779 #define STRING_space0               STR_s STR_p STR_a STR_c STR_e "\0"
1780 #define STRING_word0                STR_w STR_o STR_r STR_d       "\0"
1781 #define STRING_xdigit               STR_x STR_d STR_i STR_g STR_i STR_t
1782
1783 #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E
1784
1785 #define STRING_CR_RIGHTPAR             STR_C STR_R STR_RIGHT_PARENTHESIS
1786 #define STRING_LF_RIGHTPAR             STR_L STR_F STR_RIGHT_PARENTHESIS
1787 #define STRING_CRLF_RIGHTPAR           STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1788 #define STRING_ANY_RIGHTPAR            STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1789 #define STRING_ANYCRLF_RIGHTPAR        STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1790 #define STRING_BSR_ANYCRLF_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1791 #define STRING_BSR_UNICODE_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_U STR_N STR_I STR_C STR_O STR_D STR_E STR_RIGHT_PARENTHESIS
1792 #define STRING_UTF8_RIGHTPAR           STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1793 #define STRING_UTF16_RIGHTPAR          STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1794 #define STRING_UTF32_RIGHTPAR          STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1795 #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1796 #define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1797 #define STRING_NO_START_OPT_RIGHTPAR   STR_N STR_O STR_UNDERSCORE STR_S STR_T STR_A STR_R STR_T STR_UNDERSCORE STR_O STR_P STR_T STR_RIGHT_PARENTHESIS
1798
1799 #endif  /* SUPPORT_UTF */
1800
1801 /* Escape items that are just an encoding of a particular data value. */
1802
1803 #ifndef ESC_e
1804 #define ESC_e CHAR_ESC
1805 #endif
1806
1807 #ifndef ESC_f
1808 #define ESC_f CHAR_FF
1809 #endif
1810
1811 #ifndef ESC_n
1812 #define ESC_n CHAR_LF
1813 #endif
1814
1815 #ifndef ESC_r
1816 #define ESC_r CHAR_CR
1817 #endif
1818
1819 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1820 (presumably because of all the others like size_t). */
1821
1822 #ifndef ESC_tee
1823 #define ESC_tee CHAR_HT
1824 #endif
1825
1826 /* Codes for different types of Unicode property */
1827
1828 #define PT_ANY        0    /* Any property - matches all chars */
1829 #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */
1830 #define PT_GC         2    /* Specified general characteristic (e.g. L) */
1831 #define PT_PC         3    /* Specified particular characteristic (e.g. Lu) */
1832 #define PT_SC         4    /* Script (e.g. Han) */
1833 #define PT_ALNUM      5    /* Alphanumeric - the union of L and N */
1834 #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
1835 #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
1836 #define PT_WORD       8    /* Word - L plus N plus underscore */
1837 #define PT_CLIST      9    /* Pseudo-property: match character list */
1838
1839 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1840 contain characters with values greater than 255. */
1841
1842 #define XCL_NOT    0x01    /* Flag: this is a negative class */
1843 #define XCL_MAP    0x02    /* Flag: a 32-byte map is present */
1844
1845 #define XCL_END       0    /* Marks end of individual items */
1846 #define XCL_SINGLE    1    /* Single item (one multibyte char) follows */
1847 #define XCL_RANGE     2    /* A range (two multibyte chars) follows */
1848 #define XCL_PROP      3    /* Unicode property (2-byte property code follows) */
1849 #define XCL_NOTPROP   4    /* Unicode inverted property (ditto) */
1850
1851 /* These are escaped items that aren't just an encoding of a particular data
1852 value such as \n. They must have non-zero values, as check_escape() returns
1853 0 for a data character.  Also, they must appear in the same order as in the opcode
1854 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1855 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1856 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1857 non-DOTALL mode, "." behaves like \N.
1858
1859 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1860 when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1861 They must be contiguous, and remain in order so that the replacements can be
1862 looked up from a table.
1863
1864 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1865 check_escape(). There are two tests in the code for an escape
1866 greater than ESC_b and less than ESC_Z to detect the types that may be
1867 repeated. These are the types that consume characters. If any new escapes are
1868 put in between that don't consume a character, that code will have to change.
1869 */
1870
1871 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1872        ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1873        ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1874        ESC_E, ESC_Q, ESC_g, ESC_k,
1875        ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1876
1877 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1878 OP_EOD must correspond in order to the list of escapes immediately above.
1879
1880 *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1881 that follow must also be updated to match. There are also tables called
1882 "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1883
1884 enum {
1885   OP_END,            /* 0 End of pattern */
1886
1887   /* Values corresponding to backslashed metacharacters */
1888
1889   OP_SOD,            /* 1 Start of data: \A */
1890   OP_SOM,            /* 2 Start of match (subject + offset): \G */
1891   OP_SET_SOM,        /* 3 Set start of match (\K) */
1892   OP_NOT_WORD_BOUNDARY,  /*  4 \B */
1893   OP_WORD_BOUNDARY,      /*  5 \b */
1894   OP_NOT_DIGIT,          /*  6 \D */
1895   OP_DIGIT,              /*  7 \d */
1896   OP_NOT_WHITESPACE,     /*  8 \S */
1897   OP_WHITESPACE,         /*  9 \s */
1898   OP_NOT_WORDCHAR,       /* 10 \W */
1899   OP_WORDCHAR,           /* 11 \w */
1900
1901   OP_ANY,            /* 12 Match any character except newline (\N) */
1902   OP_ALLANY,         /* 13 Match any character */
1903   OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1904   OP_NOTPROP,        /* 15 \P (not Unicode property) */
1905   OP_PROP,           /* 16 \p (Unicode property) */
1906   OP_ANYNL,          /* 17 \R (any newline sequence) */
1907   OP_NOT_HSPACE,     /* 18 \H (not horizontal whitespace) */
1908   OP_HSPACE,         /* 19 \h (horizontal whitespace) */
1909   OP_NOT_VSPACE,     /* 20 \V (not vertical whitespace) */
1910   OP_VSPACE,         /* 21 \v (vertical whitespace) */
1911   OP_EXTUNI,         /* 22 \X (extended Unicode sequence */
1912   OP_EODN,           /* 23 End of data or \n at end of data (\Z) */
1913   OP_EOD,            /* 24 End of data (\z) */
1914
1915   OP_CIRC,           /* 25 Start of line - not multiline */
1916   OP_CIRCM,          /* 26 Start of line - multiline */
1917   OP_DOLL,           /* 27 End of line - not multiline */
1918   OP_DOLLM,          /* 28 End of line - multiline */
1919   OP_CHAR,           /* 29 Match one character, casefully */
1920   OP_CHARI,          /* 30 Match one character, caselessly */
1921   OP_NOT,            /* 31 Match one character, not the given one, casefully */
1922   OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
1923
1924   /* The following sets of 13 opcodes must always be kept in step because
1925   the offset from the first one is used to generate the others. */
1926
1927   /**** Single characters, caseful, must precede the caseless ones ****/
1928
1929   OP_STAR,           /* 33 The maximizing and minimizing versions of */
1930   OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
1931   OP_PLUS,           /* 35 the minimizing one second. */
1932   OP_MINPLUS,        /* 36 */
1933   OP_QUERY,          /* 37 */
1934   OP_MINQUERY,       /* 38 */
1935
1936   OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
1937   OP_MINUPTO,        /* 40 */
1938   OP_EXACT,          /* 41 Exactly n matches */
1939
1940   OP_POSSTAR,        /* 42 Possessified star, caseful */
1941   OP_POSPLUS,        /* 43 Possessified plus, caseful */
1942   OP_POSQUERY,       /* 44 Posesssified query, caseful */
1943   OP_POSUPTO,        /* 45 Possessified upto, caseful */
1944
1945   /**** Single characters, caseless, must follow the caseful ones */
1946
1947   OP_STARI,          /* 46 */
1948   OP_MINSTARI,       /* 47 */
1949   OP_PLUSI,          /* 48 */
1950   OP_MINPLUSI,       /* 49 */
1951   OP_QUERYI,         /* 50 */
1952   OP_MINQUERYI,      /* 51 */
1953
1954   OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
1955   OP_MINUPTOI,       /* 53 */
1956   OP_EXACTI,         /* 54 */
1957
1958   OP_POSSTARI,       /* 55 Possessified star, caseless */
1959   OP_POSPLUSI,       /* 56 Possessified plus, caseless */
1960   OP_POSQUERYI,      /* 57 Posesssified query, caseless */
1961   OP_POSUPTOI,       /* 58 Possessified upto, caseless */
1962
1963   /**** The negated ones must follow the non-negated ones, and match them ****/
1964   /**** Negated single character, caseful; must precede the caseless ones ****/
1965
1966   OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
1967   OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
1968   OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
1969   OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
1970   OP_NOTQUERY,       /* 63 */
1971   OP_NOTMINQUERY,    /* 64 */
1972
1973   OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
1974   OP_NOTMINUPTO,     /* 66 */
1975   OP_NOTEXACT,       /* 67 Exactly n matches */
1976
1977   OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
1978   OP_NOTPOSPLUS,     /* 69 */
1979   OP_NOTPOSQUERY,    /* 70 */
1980   OP_NOTPOSUPTO,     /* 71 */
1981
1982   /**** Negated single character, caseless; must follow the caseful ones ****/
1983
1984   OP_NOTSTARI,       /* 72 */
1985   OP_NOTMINSTARI,    /* 73 */
1986   OP_NOTPLUSI,       /* 74 */
1987   OP_NOTMINPLUSI,    /* 75 */
1988   OP_NOTQUERYI,      /* 76 */
1989   OP_NOTMINQUERYI,   /* 77 */
1990
1991   OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
1992   OP_NOTMINUPTOI,    /* 79 */
1993   OP_NOTEXACTI,      /* 80 Exactly n matches */
1994
1995   OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
1996   OP_NOTPOSPLUSI,    /* 82 */
1997   OP_NOTPOSQUERYI,   /* 83 */
1998   OP_NOTPOSUPTOI,    /* 84 */
1999
2000   /**** Character types ****/
2001
2002   OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
2003   OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
2004   OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
2005   OP_TYPEMINPLUS,    /* 88 be in exactly the same order as those above. */
2006   OP_TYPEQUERY,      /* 89 */
2007   OP_TYPEMINQUERY,   /* 90 */
2008
2009   OP_TYPEUPTO,       /* 91 From 0 to n matches */
2010   OP_TYPEMINUPTO,    /* 92 */
2011   OP_TYPEEXACT,      /* 93 Exactly n matches */
2012
2013   OP_TYPEPOSSTAR,    /* 94 Possessified versions */
2014   OP_TYPEPOSPLUS,    /* 95 */
2015   OP_TYPEPOSQUERY,   /* 96 */
2016   OP_TYPEPOSUPTO,    /* 97 */
2017
2018   /* These are used for character classes and back references; only the
2019   first six are the same as the sets above. */
2020
2021   OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
2022   OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
2023   OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
2024   OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
2025   OP_CRQUERY,        /* 102 */
2026   OP_CRMINQUERY,     /* 103 */
2027
2028   OP_CRRANGE,        /* 104 These are different to the three sets above. */
2029   OP_CRMINRANGE,     /* 105 */
2030
2031   /* End of quantifier opcodes */
2032
2033   OP_CLASS,          /* 106 Match a character class, chars < 256 only */
2034   OP_NCLASS,         /* 107 Same, but the bitmap was created from a negative
2035                               class - the difference is relevant only when a
2036                               character > 255 is encountered. */
2037   OP_XCLASS,         /* 108 Extended class for handling > 255 chars within the
2038                               class. This does both positive and negative. */
2039   OP_REF,            /* 109 Match a back reference, casefully */
2040   OP_REFI,           /* 110 Match a back reference, caselessly */
2041   OP_RECURSE,        /* 111 Match a numbered subpattern (possibly recursive) */
2042   OP_CALLOUT,        /* 112 Call out to external function if provided */
2043
2044   OP_ALT,            /* 113 Start of alternation */
2045   OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */
2046   OP_KETRMAX,        /* 115 These two must remain together and in this */
2047   OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */
2048   OP_KETRPOS,        /* 117 Possessive unlimited repeat. */
2049
2050   /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
2051   asserts must remain in order. */
2052
2053   OP_REVERSE,        /* 118 Move pointer back - used in lookbehind assertions */
2054   OP_ASSERT,         /* 119 Positive lookahead */
2055   OP_ASSERT_NOT,     /* 120 Negative lookahead */
2056   OP_ASSERTBACK,     /* 121 Positive lookbehind */
2057   OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
2058
2059   /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
2060   after the assertions, with ONCE first, as there's a test for >= ONCE for a
2061   subpattern that isn't an assertion. The POS versions must immediately follow
2062   the non-POS versions in each case. */
2063
2064   OP_ONCE,           /* 123 Atomic group, contains captures */
2065   OP_ONCE_NC,        /* 124 Atomic group containing no captures */
2066   OP_BRA,            /* 125 Start of non-capturing bracket */
2067   OP_BRAPOS,         /* 126 Ditto, with unlimited, possessive repeat */
2068   OP_CBRA,           /* 127 Start of capturing bracket */
2069   OP_CBRAPOS,        /* 128 Ditto, with unlimited, possessive repeat */
2070   OP_COND,           /* 129 Conditional group */
2071
2072   /* These five must follow the previous five, in the same order. There's a
2073   check for >= SBRA to distinguish the two sets. */
2074
2075   OP_SBRA,           /* 130 Start of non-capturing bracket, check empty  */
2076   OP_SBRAPOS,        /* 131 Ditto, with unlimited, possessive repeat */
2077   OP_SCBRA,          /* 132 Start of capturing bracket, check empty */
2078   OP_SCBRAPOS,       /* 133 Ditto, with unlimited, possessive repeat */
2079   OP_SCOND,          /* 134 Conditional group, check empty */
2080
2081   /* The next two pairs must (respectively) be kept together. */
2082
2083   OP_CREF,           /* 135 Used to hold a capture number as condition */
2084   OP_NCREF,          /* 136 Same, but generated by a name reference*/
2085   OP_RREF,           /* 137 Used to hold a recursion number as condition */
2086   OP_NRREF,          /* 138 Same, but generated by a name reference*/
2087   OP_DEF,            /* 139 The DEFINE condition */
2088
2089   OP_BRAZERO,        /* 140 These two must remain together and in this */
2090   OP_BRAMINZERO,     /* 141 order. */
2091   OP_BRAPOSZERO,     /* 142 */
2092
2093   /* These are backtracking control verbs */
2094
2095   OP_MARK,           /* 143 always has an argument */
2096   OP_PRUNE,          /* 144 */
2097   OP_PRUNE_ARG,      /* 145 same, but with argument */
2098   OP_SKIP,           /* 146 */
2099   OP_SKIP_ARG,       /* 147 same, but with argument */
2100   OP_THEN,           /* 148 */
2101   OP_THEN_ARG,       /* 149 same, but with argument */
2102   OP_COMMIT,         /* 150 */
2103
2104   /* These are forced failure and success verbs */
2105
2106   OP_FAIL,           /* 151 */
2107   OP_ACCEPT,         /* 152 */
2108   OP_ASSERT_ACCEPT,  /* 153 Used inside assertions */
2109   OP_CLOSE,          /* 154 Used before OP_ACCEPT to close open captures */
2110
2111   /* This is used to skip a subpattern with a {0} quantifier */
2112
2113   OP_SKIPZERO,       /* 155 */
2114
2115   /* This is not an opcode, but is used to check that tables indexed by opcode
2116   are the correct length, in order to catch updating errors - there have been
2117   some in the past. */
2118
2119   OP_TABLE_LENGTH
2120 };
2121
2122 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2123 definitions that follow must also be updated to match. There are also tables
2124 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
2125
2126
2127 /* This macro defines textual names for all the opcodes. These are used only
2128 for debugging, and some of them are only partial names. The macro is referenced
2129 only in pcre_printint.c, which fills out the full names in many cases (and in
2130 some cases doesn't actually use these names at all). */
2131
2132 #define OP_NAME_LIST \
2133   "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
2134   "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
2135   "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
2136   "extuni",  "\\Z", "\\z",                                        \
2137   "^", "^", "$", "$", "char", "chari", "not", "noti",             \
2138   "*", "*?", "+", "+?", "?", "??",                                \
2139   "{", "{", "{",                                                  \
2140   "*+","++", "?+", "{",                                           \
2141   "*", "*?", "+", "+?", "?", "??",                                \
2142   "{", "{", "{",                                                  \
2143   "*+","++", "?+", "{",                                           \
2144   "*", "*?", "+", "+?", "?", "??",                                \
2145   "{", "{", "{",                                                  \
2146   "*+","++", "?+", "{",                                           \
2147   "*", "*?", "+", "+?", "?", "??",                                \
2148   "{", "{", "{",                                                  \
2149   "*+","++", "?+", "{",                                           \
2150   "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
2151   "*+","++", "?+", "{",                                           \
2152   "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
2153   "class", "nclass", "xclass", "Ref", "Refi",                     \
2154   "Recurse", "Callout",                                           \
2155   "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
2156   "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \
2157   "Once", "Once_NC",                                              \
2158   "Bra", "BraPos", "CBra", "CBraPos",                             \
2159   "Cond",                                                         \
2160   "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
2161   "SCond",                                                        \
2162   "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \
2163   "Brazero", "Braminzero", "Braposzero",                          \
2164   "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
2165   "*THEN", "*THEN", "*COMMIT", "*FAIL",                           \
2166   "*ACCEPT", "*ASSERT_ACCEPT",                                    \
2167   "Close", "Skip zero"
2168
2169
2170 /* This macro defines the length of fixed length operations in the compiled
2171 regex. The lengths are used when searching for specific things, and also in the
2172 debugging printing of a compiled regex. We use a macro so that it can be
2173 defined close to the definitions of the opcodes themselves.
2174
2175 As things have been extended, some of these are no longer fixed lenths, but are
2176 minima instead. For example, the length of a single-character repeat may vary
2177 in UTF-8 mode. The code that uses this table must know about such things. */
2178
2179 #define OP_LENGTHS \
2180   1,                             /* End                                    */ \
2181   1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
2182   1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
2183   1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
2184   3, 3,                          /* \P, \p                                 */ \
2185   1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
2186   1,                             /* \X                                     */ \
2187   1, 1, 1, 1, 1, 1,              /* \Z, \z, ^, ^M, $, $M                   */ \
2188   2,                             /* Char  - the minimum length             */ \
2189   2,                             /* Chari  - the minimum length            */ \
2190   2,                             /* not                                    */ \
2191   2,                             /* noti                                   */ \
2192   /* Positive single-char repeats                             ** These are */ \
2193   2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
2194   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto, minupto             ** mode      */ \
2195   2+IMM2_SIZE,                   /* exact                                  */ \
2196   2, 2, 2, 2+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */ \
2197   2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
2198   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto I, minupto I                      */ \
2199   2+IMM2_SIZE,                   /* exact I                                */ \
2200   2, 2, 2, 2+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */ \
2201   /* Negative single-char repeats - only for chars < 256                   */ \
2202   2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
2203   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto, minupto                      */ \
2204   2+IMM2_SIZE,                   /* NOT exact                              */ \
2205   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *, +, ?, upto           */ \
2206   2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
2207   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto I, minupto I                  */ \
2208   2+IMM2_SIZE,                   /* NOT exact I                            */ \
2209   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *I, +I, ?I, upto I      */ \
2210   /* Positive type repeats                                                 */ \
2211   2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
2212   2+IMM2_SIZE, 2+IMM2_SIZE,      /* Type upto, minupto                     */ \
2213   2+IMM2_SIZE,                   /* Type exact                             */ \
2214   2, 2, 2, 2+IMM2_SIZE,          /* Possessive *+, ++, ?+, upto+           */ \
2215   /* Character class & ref repeats                                         */ \
2216   1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
2217   1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
2218   1+(32/sizeof(pcre_uchar)),     /* CLASS                                  */ \
2219   1+(32/sizeof(pcre_uchar)),     /* NCLASS                                 */ \
2220   0,                             /* XCLASS - variable length               */ \
2221   1+IMM2_SIZE,                   /* REF                                    */ \
2222   1+IMM2_SIZE,                   /* REFI                                   */ \
2223   1+LINK_SIZE,                   /* RECURSE                                */ \
2224   2+2*LINK_SIZE,                 /* CALLOUT                                */ \
2225   1+LINK_SIZE,                   /* Alt                                    */ \
2226   1+LINK_SIZE,                   /* Ket                                    */ \
2227   1+LINK_SIZE,                   /* KetRmax                                */ \
2228   1+LINK_SIZE,                   /* KetRmin                                */ \
2229   1+LINK_SIZE,                   /* KetRpos                                */ \
2230   1+LINK_SIZE,                   /* Reverse                                */ \
2231   1+LINK_SIZE,                   /* Assert                                 */ \
2232   1+LINK_SIZE,                   /* Assert not                             */ \
2233   1+LINK_SIZE,                   /* Assert behind                          */ \
2234   1+LINK_SIZE,                   /* Assert behind not                      */ \
2235   1+LINK_SIZE,                   /* ONCE                                   */ \
2236   1+LINK_SIZE,                   /* ONCE_NC                                */ \
2237   1+LINK_SIZE,                   /* BRA                                    */ \
2238   1+LINK_SIZE,                   /* BRAPOS                                 */ \
2239   1+LINK_SIZE+IMM2_SIZE,         /* CBRA                                   */ \
2240   1+LINK_SIZE+IMM2_SIZE,         /* CBRAPOS                                */ \
2241   1+LINK_SIZE,                   /* COND                                   */ \
2242   1+LINK_SIZE,                   /* SBRA                                   */ \
2243   1+LINK_SIZE,                   /* SBRAPOS                                */ \
2244   1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
2245   1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
2246   1+LINK_SIZE,                   /* SCOND                                  */ \
2247   1+IMM2_SIZE, 1+IMM2_SIZE,      /* CREF, NCREF                            */ \
2248   1+IMM2_SIZE, 1+IMM2_SIZE,      /* RREF, NRREF                            */ \
2249   1,                             /* DEF                                    */ \
2250   1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
2251   3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
2252   1, 3,                          /* SKIP, SKIP_ARG                         */ \
2253   1, 3,                          /* THEN, THEN_ARG                         */ \
2254   1, 1, 1, 1,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */ \
2255   1+IMM2_SIZE, 1                 /* CLOSE, SKIPZERO                        */
2256
2257 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2258 condition. */
2259
2260 #define RREF_ANY  0xffff
2261
2262 /* Compile time error code numbers. They are given names so that they can more
2263 easily be tracked. When a new number is added, the table called eint in
2264 pcreposix.c must be updated. */
2265
2266 enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,
2267        ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2268        ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2269        ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2270        ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2271        ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2272        ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2273        ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERRCOUNT };
2274
2275 /* JIT compiling modes. The function list is indexed by them. */
2276 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2277        JIT_NUMBER_OF_COMPILE_MODES };
2278
2279 /* The real format of the start of the pcre block; the index of names and the
2280 code vector run on as long as necessary after the end. We store an explicit
2281 offset to the name table so that if a regex is compiled on one host, saved, and
2282 then run on another where the size of pointers is different, all might still
2283 be well. For the case of compiled-on-4 and run-on-8, we include an extra
2284 pointer that is always NULL. For future-proofing, a few dummy fields were
2285 originally included - even though you can never get this planning right - but
2286 there is only one left now.
2287
2288 NOTE NOTE NOTE:
2289 Because people can now save and re-use compiled patterns, any additions to this
2290 structure should be made at the end, and something earlier (e.g. a new
2291 flag in the options or one of the dummy fields) should indicate that the new
2292 fields are present. Currently PCRE always sets the dummy fields to zero.
2293 NOTE NOTE NOTE
2294 */
2295
2296 #if defined COMPILE_PCRE8
2297 #define REAL_PCRE real_pcre
2298 #elif defined COMPILE_PCRE16
2299 #define REAL_PCRE real_pcre16
2300 #elif defined COMPILE_PCRE32
2301 #define REAL_PCRE real_pcre32
2302 #endif
2303
2304 /* It is necessary to fork the struct for 32 bit, since it needs to use
2305  * pcre_uchar for first_char and req_char. Can't put an ifdef inside the
2306  * typedef since pcretest needs access to  the struct of the 8-, 16-
2307  * and 32-bit variants. */
2308
2309 typedef struct real_pcre8_or_16 {
2310   pcre_uint32 magic_number;
2311   pcre_uint32 size;               /* Total that was malloced */
2312   pcre_uint32 options;            /* Public options */
2313   pcre_uint16 flags;              /* Private flags */
2314   pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
2315   pcre_uint16 top_bracket;        /* Highest numbered group */
2316   pcre_uint16 top_backref;        /* Highest numbered back reference */
2317   pcre_uint16 first_char;         /* Starting character */
2318   pcre_uint16 req_char;           /* This character must be seen */
2319   pcre_uint16 name_table_offset;  /* Offset to name table that follows */
2320   pcre_uint16 name_entry_size;    /* Size of any name items */
2321   pcre_uint16 name_count;         /* Number of name items */
2322   pcre_uint16 ref_count;          /* Reference count */
2323   const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
2324   const pcre_uint8 *nullpad;      /* NULL padding */
2325 } real_pcre8_or_16;
2326
2327 typedef struct real_pcre8_or_16 real_pcre;
2328 typedef struct real_pcre8_or_16 real_pcre16;
2329
2330 typedef struct real_pcre32 {
2331   pcre_uint32 magic_number;
2332   pcre_uint32 size;               /* Total that was malloced */
2333   pcre_uint32 options;            /* Public options */
2334   pcre_uint16 flags;              /* Private flags */
2335   pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
2336   pcre_uint16 top_bracket;        /* Highest numbered group */
2337   pcre_uint16 top_backref;        /* Highest numbered back reference */
2338   pcre_uint32 first_char;         /* Starting character */
2339   pcre_uint32 req_char;           /* This character must be seen */
2340   pcre_uint16 name_table_offset;  /* Offset to name table that follows */
2341   pcre_uint16 name_entry_size;    /* Size of any name items */
2342   pcre_uint16 name_count;         /* Number of name items */
2343   pcre_uint16 ref_count;          /* Reference count */
2344   pcre_uint16 dummy1;             /* for later expansion */
2345   pcre_uint16 dummy2;             /* for later expansion */
2346   const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
2347   void *nullpad;                  /* for later expansion */
2348 } real_pcre32;
2349
2350 /* Assert that the size of REAL_PCRE is divisible by 8 */
2351 typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2352
2353 /* Needed in pcretest to access some fields in the real_pcre* structures
2354  * directly. They're unified for 8/16/32 bits since the structs only differ
2355  * after these fields; if that ever changes, need to fork those defines into
2356  * 8/16 and 32 bit versions. */
2357 #define REAL_PCRE_MAGIC(re)     (((REAL_PCRE*)re)->magic_number)
2358 #define REAL_PCRE_SIZE(re)      (((REAL_PCRE*)re)->size)
2359 #define REAL_PCRE_OPTIONS(re)   (((REAL_PCRE*)re)->options)
2360 #define REAL_PCRE_FLAGS(re)     (((REAL_PCRE*)re)->flags)
2361
2362 /* The format of the block used to store data from pcre_study(). The same
2363 remark (see NOTE above) about extending this structure applies. */
2364
2365 typedef struct pcre_study_data {
2366   pcre_uint32 size;               /* Total that was malloced */
2367   pcre_uint32 flags;              /* Private flags */
2368   pcre_uint8 start_bits[32];      /* Starting char bits */
2369   pcre_uint32 minlength;          /* Minimum subject length */
2370 } pcre_study_data;
2371
2372 /* Structure for building a chain of open capturing subpatterns during
2373 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2374 encountered. This is also used to identify subpatterns that contain recursive
2375 back references to themselves, so that they can be made atomic. */
2376
2377 typedef struct open_capitem {
2378   struct open_capitem *next;    /* Chain link */
2379   pcre_uint16 number;           /* Capture number */
2380   pcre_uint16 flag;             /* Set TRUE if recursive back ref */
2381 } open_capitem;
2382
2383 /* Structure for passing "static" information around between the functions
2384 doing the compiling, so that they are thread-safe. */
2385
2386 typedef struct compile_data {
2387   const pcre_uint8 *lcc;            /* Points to lower casing table */
2388   const pcre_uint8 *fcc;            /* Points to case-flipping table */
2389   const pcre_uint8 *cbits;          /* Points to character type table */
2390   const pcre_uint8 *ctypes;         /* Points to table of type maps */
2391   const pcre_uchar *start_workspace;/* The start of working space */
2392   const pcre_uchar *start_code;     /* The start of the compiled code */
2393   const pcre_uchar *start_pattern;  /* The start of the pattern */
2394   const pcre_uchar *end_pattern;    /* The end of the pattern */
2395   open_capitem *open_caps;          /* Chain of open capture items */
2396   pcre_uchar *hwm;                  /* High watermark of workspace */
2397   pcre_uchar *name_table;           /* The name/number table */
2398   int  names_found;                 /* Number of entries so far */
2399   int  name_entry_size;             /* Size of each entry */
2400   int  workspace_size;              /* Size of workspace */
2401   unsigned int  bracount;           /* Count of capturing parens as we compile */
2402   int  final_bracount;              /* Saved value after first pass */
2403   int  max_lookbehind;              /* Maximum lookbehind (characters) */
2404   int  top_backref;                 /* Maximum back reference */
2405   unsigned int backref_map;         /* Bitmap of low back refs */
2406   int  assert_depth;                /* Depth of nested assertions */
2407   int  external_options;            /* External (initial) options */
2408   int  external_flags;              /* External flag bits to be set */
2409   int  req_varyopt;                 /* "After variable item" flag for reqbyte */
2410   BOOL had_accept;                  /* (*ACCEPT) encountered */
2411   BOOL had_pruneorskip;             /* (*PRUNE) or (*SKIP) encountered */
2412   BOOL check_lookbehind;            /* Lookbehinds need later checking */
2413   int  nltype;                      /* Newline type */
2414   int  nllen;                       /* Newline string length */
2415   pcre_uchar nl[4];                 /* Newline string when fixed length */
2416 } compile_data;
2417
2418 /* Structure for maintaining a chain of pointers to the currently incomplete
2419 branches, for testing for left recursion while compiling. */
2420
2421 typedef struct branch_chain {
2422   struct branch_chain *outer;
2423   pcre_uchar *current_branch;
2424 } branch_chain;
2425
2426 /* Structure for items in a linked list that represents an explicit recursive
2427 call within the pattern; used by pcre_exec(). */
2428
2429 typedef struct recursion_info {
2430   struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2431   unsigned int group_num;         /* Number of group that was called */
2432   int *offset_save;               /* Pointer to start of saved offsets */
2433   int saved_max;                  /* Number of saved offsets */
2434   PCRE_PUCHAR subject_position;   /* Position at start of recursion */
2435 } recursion_info;
2436
2437 /* A similar structure for pcre_dfa_exec(). */
2438
2439 typedef struct dfa_recursion_info {
2440   struct dfa_recursion_info *prevrec;
2441   int group_num;
2442   PCRE_PUCHAR subject_position;
2443 } dfa_recursion_info;
2444
2445 /* Structure for building a chain of data for holding the values of the subject
2446 pointer at the start of each subpattern, so as to detect when an empty string
2447 has been matched by a subpattern - to break infinite loops; used by
2448 pcre_exec(). */
2449
2450 typedef struct eptrblock {
2451   struct eptrblock *epb_prev;
2452   PCRE_PUCHAR epb_saved_eptr;
2453 } eptrblock;
2454
2455
2456 /* Structure for passing "static" information around between the functions
2457 doing traditional NFA matching, so that they are thread-safe. */
2458
2459 typedef struct match_data {
2460   unsigned long int match_call_count;      /* As it says */
2461   unsigned long int match_limit;           /* As it says */
2462   unsigned long int match_limit_recursion; /* As it says */
2463   int   *offset_vector;           /* Offset vector */
2464   int    offset_end;              /* One past the end */
2465   int    offset_max;              /* The maximum usable for return data */
2466   int    nltype;                  /* Newline type */
2467   int    nllen;                   /* Newline string length */
2468   int    name_count;              /* Number of names in name table */
2469   int    name_entry_size;         /* Size of entry in names table */
2470   pcre_uchar *name_table;         /* Table of names */
2471   pcre_uchar nl[4];               /* Newline string when fixed */
2472   const  pcre_uint8 *lcc;         /* Points to lower casing table */
2473   const  pcre_uint8 *fcc;         /* Points to case-flipping table */
2474   const  pcre_uint8 *ctypes;      /* Points to table of type maps */
2475   BOOL   offset_overflow;         /* Set if too many extractions */
2476   BOOL   notbol;                  /* NOTBOL flag */
2477   BOOL   noteol;                  /* NOTEOL flag */
2478   BOOL   utf;                     /* UTF-8 / UTF-16 flag */
2479   BOOL   jscript_compat;          /* JAVASCRIPT_COMPAT flag */
2480   BOOL   use_ucp;                 /* PCRE_UCP flag */
2481   BOOL   endonly;                 /* Dollar not before final \n */
2482   BOOL   notempty;                /* Empty string match not wanted */
2483   BOOL   notempty_atstart;        /* Empty string match at start not wanted */
2484   BOOL   hitend;                  /* Hit the end of the subject at some point */
2485   BOOL   bsr_anycrlf;             /* \R is just any CRLF, not full Unicode */
2486   BOOL   hasthen;                 /* Pattern contains (*THEN) */
2487   BOOL   ignore_skip_arg;         /* For re-run when SKIP name not found */
2488   const  pcre_uchar *start_code;  /* For use when recursing */
2489   PCRE_PUCHAR start_subject;      /* Start of the subject string */
2490   PCRE_PUCHAR end_subject;        /* End of the subject string */
2491   PCRE_PUCHAR start_match_ptr;    /* Start of matched string */
2492   PCRE_PUCHAR end_match_ptr;      /* Subject position at end match */
2493   PCRE_PUCHAR start_used_ptr;     /* Earliest consulted character */
2494   int    partial;                 /* PARTIAL options */
2495   int    end_offset_top;          /* Highwater mark at end of match */
2496   int    capture_last;            /* Most recent capture number */
2497   int    start_offset;            /* The start offset value */
2498   int    match_function_type;     /* Set for certain special calls of MATCH() */
2499   eptrblock *eptrchain;           /* Chain of eptrblocks for tail recursions */
2500   int    eptrn;                   /* Next free eptrblock */
2501   recursion_info *recursive;      /* Linked list of recursion data */
2502   void  *callout_data;            /* To pass back to callouts */
2503   const  pcre_uchar *mark;        /* Mark pointer to pass back on success */
2504   const  pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2505   const  pcre_uchar *once_target; /* Where to back up to for atomic groups */
2506 #ifdef NO_RECURSE
2507   void  *match_frames_base;       /* For remembering malloc'd frames */
2508 #endif
2509 } match_data;
2510
2511 /* A similar structure is used for the same purpose by the DFA matching
2512 functions. */
2513
2514 typedef struct dfa_match_data {
2515   const pcre_uchar *start_code;     /* Start of the compiled pattern */
2516   const pcre_uchar *start_subject ; /* Start of the subject string */
2517   const pcre_uchar *end_subject;    /* End of subject string */
2518   const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2519   const pcre_uint8 *tables;         /* Character tables */
2520   int   start_offset;               /* The start offset value */
2521   int   moptions;                   /* Match options */
2522   int   poptions;                   /* Pattern options */
2523   int   nltype;                     /* Newline type */
2524   int   nllen;                      /* Newline string length */
2525   pcre_uchar nl[4];                 /* Newline string when fixed */
2526   void *callout_data;               /* To pass back to callouts */
2527   dfa_recursion_info *recursive;    /* Linked list of recursion data */
2528 } dfa_match_data;
2529
2530 /* Bit definitions for entries in the pcre_ctypes table. */
2531
2532 #define ctype_space   0x01
2533 #define ctype_letter  0x02
2534 #define ctype_digit   0x04
2535 #define ctype_xdigit  0x08
2536 #define ctype_word    0x10   /* alphanumeric or '_' */
2537 #define ctype_meta    0x80   /* regexp meta char or zero (end pattern) */
2538
2539 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2540 of bits for a class map. Some classes are built by combining these tables. */
2541
2542 #define cbit_space     0      /* [:space:] or \s */
2543 #define cbit_xdigit   32      /* [:xdigit:] */
2544 #define cbit_digit    64      /* [:digit:] or \d */
2545 #define cbit_upper    96      /* [:upper:] */
2546 #define cbit_lower   128      /* [:lower:] */
2547 #define cbit_word    160      /* [:word:] or \w */
2548 #define cbit_graph   192      /* [:graph:] */
2549 #define cbit_print   224      /* [:print:] */
2550 #define cbit_punct   256      /* [:punct:] */
2551 #define cbit_cntrl   288      /* [:cntrl:] */
2552 #define cbit_length  320      /* Length of the cbits table */
2553
2554 /* Offsets of the various tables from the base tables pointer, and
2555 total length. */
2556
2557 #define lcc_offset      0
2558 #define fcc_offset    256
2559 #define cbits_offset  512
2560 #define ctypes_offset (cbits_offset + cbit_length)
2561 #define tables_length (ctypes_offset + 256)
2562
2563 /* Internal function and data prefixes. */
2564
2565 #if defined COMPILE_PCRE8
2566 #ifndef PUBL
2567 #define PUBL(name) pcre_##name
2568 #endif
2569 #ifndef PRIV
2570 #define PRIV(name) _pcre_##name
2571 #endif
2572 #elif defined COMPILE_PCRE16
2573 #ifndef PUBL
2574 #define PUBL(name) pcre16_##name
2575 #endif
2576 #ifndef PRIV
2577 #define PRIV(name) _pcre16_##name
2578 #endif
2579 #elif defined COMPILE_PCRE32
2580 #ifndef PUBL
2581 #define PUBL(name) pcre32_##name
2582 #endif
2583 #ifndef PRIV
2584 #define PRIV(name) _pcre32_##name
2585 #endif
2586 #else
2587 #error Unsupported compiling mode
2588 #endif /* COMPILE_PCRE[8|16|32] */
2589
2590 /* Layout of the UCP type table that translates property names into types and
2591 codes. Each entry used to point directly to a name, but to reduce the number of
2592 relocations in shared libraries, it now has an offset into a single string
2593 instead. */
2594
2595 typedef struct {
2596   pcre_uint16 name_offset;
2597   pcre_uint16 type;
2598   pcre_uint16 value;
2599 } ucp_type_table;
2600
2601
2602 /* Internal shared data tables. These are tables that are used by more than one
2603 of the exported public functions. They have to be "external" in the C sense,
2604 but are not part of the PCRE public API. The data for these tables is in the
2605 pcre_tables.c module. */
2606
2607 #ifdef COMPILE_PCRE8
2608 extern const int            PRIV(utf8_table1)[];
2609 extern const int            PRIV(utf8_table1_size);
2610 extern const int            PRIV(utf8_table2)[];
2611 extern const int            PRIV(utf8_table3)[];
2612 extern const pcre_uint8     PRIV(utf8_table4)[];
2613 #endif /* COMPILE_PCRE8 */
2614
2615 extern const char           PRIV(utt_names)[];
2616 extern const ucp_type_table PRIV(utt)[];
2617 extern const int            PRIV(utt_size);
2618
2619 extern const pcre_uint8     PRIV(OP_lengths)[];
2620 extern const pcre_uint8     PRIV(default_tables)[];
2621
2622 extern const pcre_uint32    PRIV(hspace_list)[];
2623 extern const pcre_uint32    PRIV(vspace_list)[];
2624
2625
2626 /* Internal shared functions. These are functions that are used by more than
2627 one of the exported public functions. They have to be "external" in the C
2628 sense, but are not part of the PCRE public API. */
2629
2630 /* String comparison functions. */
2631 #if defined COMPILE_PCRE8
2632
2633 #define STRCMP_UC_UC(str1, str2) \
2634   strcmp((char *)(str1), (char *)(str2))
2635 #define STRCMP_UC_C8(str1, str2) \
2636   strcmp((char *)(str1), (str2))
2637 #define STRNCMP_UC_UC(str1, str2, num) \
2638   strncmp((char *)(str1), (char *)(str2), (num))
2639 #define STRNCMP_UC_C8(str1, str2, num) \
2640   strncmp((char *)(str1), (str2), (num))
2641 #define STRLEN_UC(str) strlen((const char *)str)
2642
2643 #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2644
2645 extern int               PRIV(strcmp_uc_uc)(const pcre_uchar *,
2646                            const pcre_uchar *);
2647 extern int               PRIV(strcmp_uc_c8)(const pcre_uchar *,
2648                            const char *);
2649 extern int               PRIV(strncmp_uc_uc)(const pcre_uchar *,
2650                            const pcre_uchar *, unsigned int num);
2651 extern int               PRIV(strncmp_uc_c8)(const pcre_uchar *,
2652                            const char *, unsigned int num);
2653 extern unsigned int      PRIV(strlen_uc)(const pcre_uchar *str);
2654
2655 #define STRCMP_UC_UC(str1, str2) \
2656   PRIV(strcmp_uc_uc)((str1), (str2))
2657 #define STRCMP_UC_C8(str1, str2) \
2658   PRIV(strcmp_uc_c8)((str1), (str2))
2659 #define STRNCMP_UC_UC(str1, str2, num) \
2660   PRIV(strncmp_uc_uc)((str1), (str2), (num))
2661 #define STRNCMP_UC_C8(str1, str2, num) \
2662   PRIV(strncmp_uc_c8)((str1), (str2), (num))
2663 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2664
2665 #endif /* COMPILE_PCRE[8|16|32] */
2666
2667 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
2668
2669 #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
2670 #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
2671
2672 #elif defined COMPILE_PCRE32
2673
2674 extern int               PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
2675                            const pcre_uchar *);
2676 extern int               PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
2677                            const char *);
2678
2679 #define STRCMP_UC_UC_TEST(str1, str2) \
2680   (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
2681 #define STRCMP_UC_C8_TEST(str1, str2) \
2682   (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
2683
2684 #endif /* COMPILE_PCRE[8|16|32] */
2685
2686 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2687 extern BOOL              PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2688                            int *, BOOL);
2689 extern unsigned int      PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2690 extern int               PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2691 extern BOOL              PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2692                            int *, BOOL);
2693 extern BOOL              PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
2694
2695 #ifdef SUPPORT_JIT
2696 extern void              PRIV(jit_compile)(const REAL_PCRE *,
2697                            PUBL(extra) *, int);
2698 extern int               PRIV(jit_exec)(const PUBL(extra) *,
2699                            const pcre_uchar *, int, int, int, int *, int);
2700 extern void              PRIV(jit_free)(void *);
2701 extern int               PRIV(jit_get_size)(void *);
2702 extern const char*       PRIV(jit_get_target)(void);
2703 #endif
2704
2705 /* Unicode character database (UCD) */
2706
2707 typedef struct {
2708   pcre_uint8 script;     /* ucp_Arabic, etc. */
2709   pcre_uint8 chartype;   /* ucp_Cc, etc. (general categories) */
2710   pcre_uint8 gbprop;     /* ucp_gbControl, etc. (grapheme break property) */
2711   pcre_uint8 caseset;    /* offset to multichar other cases or zero */
2712   pcre_int32 other_case; /* offset to other case, or zero if none */
2713 } ucd_record;
2714
2715 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2716 extern const ucd_record  PRIV(ucd_records)[];
2717 extern const pcre_uint8  PRIV(ucd_stage1)[];
2718 extern const pcre_uint16 PRIV(ucd_stage2)[];
2719 extern const pcre_uint32 PRIV(ucp_gentype)[];
2720 extern const pcre_uint32 PRIV(ucp_gbtable)[];
2721 #ifdef SUPPORT_JIT
2722 extern const int         PRIV(ucp_typerange)[];
2723 #endif
2724
2725 #ifdef SUPPORT_UCP
2726 /* UCD access macros */
2727
2728 #define UCD_BLOCK_SIZE 128
2729 #define GET_UCD(ch) (PRIV(ucd_records) + \
2730         PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
2731         UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
2732
2733 #define UCD_CHARTYPE(ch)    GET_UCD(ch)->chartype
2734 #define UCD_SCRIPT(ch)      GET_UCD(ch)->script
2735 #define UCD_CATEGORY(ch)    PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2736 #define UCD_GRAPHBREAK(ch)  GET_UCD(ch)->gbprop
2737 #define UCD_CASESET(ch)     GET_UCD(ch)->caseset
2738 #define UCD_OTHERCASE(ch)   ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
2739
2740 #endif /* SUPPORT_UCP */
2741
2742 #endif
2743
2744 /* End of pcre_internal.h */