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      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) 1997-2014 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 #define PCRE_UINT16_MAX USHRT_MAX
    200 #define PCRE_INT16_MAX SHRT_MAX
    201 #elif UINT_MAX == 65535
    202 typedef unsigned int pcre_uint16;
    203 typedef int pcre_int16;
    204 #define PCRE_UINT16_MAX UINT_MAX
    205 #define PCRE_INT16_MAX INT_MAX
    206 #else
    207 #error Cannot determine a type for 16-bit integers
    208 #endif
    209 
    210 #if UINT_MAX == 4294967295U
    211 typedef unsigned int pcre_uint32;
    212 typedef int pcre_int32;
    213 #define PCRE_UINT32_MAX UINT_MAX
    214 #define PCRE_INT32_MAX INT_MAX
    215 #elif ULONG_MAX == 4294967295UL
    216 typedef unsigned long int pcre_uint32;
    217 typedef long int pcre_int32;
    218 #define PCRE_UINT32_MAX ULONG_MAX
    219 #define PCRE_INT32_MAX LONG_MAX
    220 #else
    221 #error Cannot determine a type for 32-bit integers
    222 #endif
    223 
    224 /* When checking for integer overflow in pcre_compile(), we need to handle
    225 large integers. If a 64-bit integer type is available, we can use that.
    226 Otherwise we have to cast to double, which of course requires floating point
    227 arithmetic. Handle this by defining a macro for the appropriate type. If
    228 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
    229 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
    230 by "configure". */
    231 
    232 #if defined HAVE_STDINT_H
    233 #include <stdint.h>
    234 #elif defined HAVE_INTTYPES_H
    235 #include <inttypes.h>
    236 #endif
    237 
    238 #if defined INT64_MAX || defined int64_t
    239 #define INT64_OR_DOUBLE int64_t
    240 #else
    241 #define INT64_OR_DOUBLE double
    242 #endif
    243 
    244 /* All character handling must be done as unsigned characters. Otherwise there
    245 are problems with top-bit-set characters and functions such as isspace().
    246 However, we leave the interface to the outside world as char * or short *,
    247 because that should make things easier for callers. This character type is
    248 called pcre_uchar.
    249 
    250 The IN_UCHARS macro multiply its argument with the byte size of the current
    251 pcre_uchar type. Useful for memcpy and such operations, whose require the
    252 byte size of their input/output buffers.
    253 
    254 The MAX_255 macro checks whether its pcre_uchar input is less than 256.
    255 
    256 The TABLE_GET macro is designed for accessing elements of tables whose contain
    257 exactly 256 items. When the character is able to contain more than 256
    258 items, some check is needed before accessing these tables.
    259 */
    260 
    261 #if defined COMPILE_PCRE8
    262 
    263 typedef unsigned char pcre_uchar;
    264 #define IN_UCHARS(x) (x)
    265 #define MAX_255(c) 1
    266 #define TABLE_GET(c, table, default) ((table)[c])
    267 
    268 #elif defined COMPILE_PCRE16
    269 
    270 #if USHRT_MAX != 65535
    271 /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
    272 pcre.h(.in) and disable (comment out) this message. */
    273 #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
    274 #endif
    275 
    276 typedef pcre_uint16 pcre_uchar;
    277 #define UCHAR_SHIFT (1)
    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 #elif defined COMPILE_PCRE32
    283 
    284 typedef pcre_uint32 pcre_uchar;
    285 #define UCHAR_SHIFT (2)
    286 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
    287 #define MAX_255(c) ((c) <= 255u)
    288 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
    289 
    290 #else
    291 #error Unsupported compiling mode
    292 #endif /* COMPILE_PCRE[8|16|32] */
    293 
    294 /* This is an unsigned int value that no character can ever have. UTF-8
    295 characters only go up to 0x7fffffff (though Unicode doesn't go beyond
    296 0x0010ffff). */
    297 
    298 #define NOTACHAR 0xffffffff
    299 
    300 /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
    301 "any" and "anycrlf" at present). The following macros are used to package up
    302 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
    303 modules to indicate in which datablock the parameters exist, and what the
    304 start/end of string field names are. */
    305 
    306 #define NLTYPE_FIXED    0     /* Newline is a fixed length string */
    307 #define NLTYPE_ANY      1     /* Newline is any Unicode line ending */
    308 #define NLTYPE_ANYCRLF  2     /* Newline is CR, LF, or CRLF */
    309 
    310 /* This macro checks for a newline at the given position */
    311 
    312 #define IS_NEWLINE(p) \
    313   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
    314     ((p) < NLBLOCK->PSEND && \
    315      PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
    316        &(NLBLOCK->nllen), utf)) \
    317     : \
    318     ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
    319      UCHAR21TEST(p) == NLBLOCK->nl[0] && \
    320      (NLBLOCK->nllen == 1 || UCHAR21TEST(p+1) == NLBLOCK->nl[1])       \
    321     ) \
    322   )
    323 
    324 /* This macro checks for a newline immediately preceding the given position */
    325 
    326 #define WAS_NEWLINE(p) \
    327   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
    328     ((p) > NLBLOCK->PSSTART && \
    329      PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
    330        &(NLBLOCK->nllen), utf)) \
    331     : \
    332     ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
    333      UCHAR21TEST(p - NLBLOCK->nllen) == NLBLOCK->nl[0] &&              \
    334      (NLBLOCK->nllen == 1 || UCHAR21TEST(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
    335     ) \
    336   )
    337 
    338 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
    339 with a custom type. This makes it possible, for example, to allow pcre_exec()
    340 to process subject strings that are discontinuous by using a smart pointer
    341 class. It must always be possible to inspect all of the subject string in
    342 pcre_exec() because of the way it backtracks. Two macros are required in the
    343 normal case, for sign-unspecified and unsigned char pointers. The former is
    344 used for the external interface and appears in pcre.h, which is why its name
    345 must begin with PCRE_. */
    346 
    347 #ifdef CUSTOM_SUBJECT_PTR
    348 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
    349 #else
    350 #define PCRE_PUCHAR const pcre_uchar *
    351 #endif
    352 
    353 /* Include the public PCRE header and the definitions of UCP character property
    354 values. */
    355 
    356 #include "pcre.h"
    357 #include "ucp.h"
    358 
    359 #ifdef COMPILE_PCRE32
    360 /* Assert that the public PCRE_UCHAR32 is a 32-bit type */
    361 typedef int __assert_pcre_uchar32_size[sizeof(PCRE_UCHAR32) == 4 ? 1 : -1];
    362 #endif
    363 
    364 /* When compiling for use with the Virtual Pascal compiler, these functions
    365 need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
    366 option on the command line. */
    367 
    368 #ifdef VPCOMPAT
    369 #define strlen(s)        _strlen(s)
    370 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
    371 #define memcmp(s,c,n)    _memcmp(s,c,n)
    372 #define memcpy(d,s,n)    _memcpy(d,s,n)
    373 #define memmove(d,s,n)   _memmove(d,s,n)
    374 #define memset(s,c,n)    _memset(s,c,n)
    375 #else  /* VPCOMPAT */
    376 
    377 /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
    378 define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
    379 is set. Otherwise, include an emulating function for those systems that have
    380 neither (there some non-Unix environments where this is the case). */
    381 
    382 #ifndef HAVE_MEMMOVE
    383 #undef  memmove        /* some systems may have a macro */
    384 #ifdef HAVE_BCOPY
    385 #define memmove(a, b, c) bcopy(b, a, c)
    386 #else  /* HAVE_BCOPY */
    387 static void *
    388 pcre_memmove(void *d, const void *s, size_t n)
    389 {
    390 size_t i;
    391 unsigned char *dest = (unsigned char *)d;
    392 const unsigned char *src = (const unsigned char *)s;
    393 if (dest > src)
    394   {
    395   dest += n;
    396   src += n;
    397   for (i = 0; i < n; ++i) *(--dest) = *(--src);
    398   return (void *)dest;
    399   }
    400 else
    401   {
    402   for (i = 0; i < n; ++i) *dest++ = *src++;
    403   return (void *)(dest - n);
    404   }
    405 }
    406 #define memmove(a, b, c) pcre_memmove(a, b, c)
    407 #endif   /* not HAVE_BCOPY */
    408 #endif   /* not HAVE_MEMMOVE */
    409 #endif   /* not VPCOMPAT */
    410 
    411 
    412 /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
    413 in big-endian order) by default. These are used, for example, to link from the
    414 start of a subpattern to its alternatives and its end. The use of 2 bytes per
    415 offset limits the size of the compiled regex to around 64K, which is big enough
    416 for almost everybody. However, I received a request for an even bigger limit.
    417 For this reason, and also to make the code easier to maintain, the storing and
    418 loading of offsets from the byte string is now handled by the macros that are
    419 defined here.
    420 
    421 The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
    422 the config.h file, but can be overridden by using -D on the command line. This
    423 is automated on Unix systems via the "configure" command. */
    424 
    425 #if defined COMPILE_PCRE8
    426 
    427 #if LINK_SIZE == 2
    428 
    429 #define PUT(a,n,d)   \
    430   (a[n] = (d) >> 8), \
    431   (a[(n)+1] = (d) & 255)
    432 
    433 #define GET(a,n) \
    434   (((a)[n] << 8) | (a)[(n)+1])
    435 
    436 #define MAX_PATTERN_SIZE (1 << 16)
    437 
    438 
    439 #elif LINK_SIZE == 3
    440 
    441 #define PUT(a,n,d)       \
    442   (a[n] = (d) >> 16),    \
    443   (a[(n)+1] = (d) >> 8), \
    444   (a[(n)+2] = (d) & 255)
    445 
    446 #define GET(a,n) \
    447   (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
    448 
    449 #define MAX_PATTERN_SIZE (1 << 24)
    450 
    451 
    452 #elif LINK_SIZE == 4
    453 
    454 #define PUT(a,n,d)        \
    455   (a[n] = (d) >> 24),     \
    456   (a[(n)+1] = (d) >> 16), \
    457   (a[(n)+2] = (d) >> 8),  \
    458   (a[(n)+3] = (d) & 255)
    459 
    460 #define GET(a,n) \
    461   (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
    462 
    463 /* Keep it positive */
    464 #define MAX_PATTERN_SIZE (1 << 30)
    465 
    466 #else
    467 #error LINK_SIZE must be either 2, 3, or 4
    468 #endif
    469 
    470 #elif defined COMPILE_PCRE16
    471 
    472 #if LINK_SIZE == 2
    473 
    474 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
    475 #undef LINK_SIZE
    476 #define LINK_SIZE 1
    477 
    478 #define PUT(a,n,d)   \
    479   (a[n] = (d))
    480 
    481 #define GET(a,n) \
    482   (a[n])
    483 
    484 #define MAX_PATTERN_SIZE (1 << 16)
    485 
    486 #elif LINK_SIZE == 3 || LINK_SIZE == 4
    487 
    488 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
    489 #undef LINK_SIZE
    490 #define LINK_SIZE 2
    491 
    492 #define PUT(a,n,d)   \
    493   (a[n] = (d) >> 16), \
    494   (a[(n)+1] = (d) & 65535)
    495 
    496 #define GET(a,n) \
    497   (((a)[n] << 16) | (a)[(n)+1])
    498 
    499 /* Keep it positive */
    500 #define MAX_PATTERN_SIZE (1 << 30)
    501 
    502 #else
    503 #error LINK_SIZE must be either 2, 3, or 4
    504 #endif
    505 
    506 #elif defined COMPILE_PCRE32
    507 
    508 /* Only supported LINK_SIZE is 4 */
    509 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
    510 #undef LINK_SIZE
    511 #define LINK_SIZE 1
    512 
    513 #define PUT(a,n,d)   \
    514   (a[n] = (d))
    515 
    516 #define GET(a,n) \
    517   (a[n])
    518 
    519 /* Keep it positive */
    520 #define MAX_PATTERN_SIZE (1 << 30)
    521 
    522 #else
    523 #error Unsupported compiling mode
    524 #endif /* COMPILE_PCRE[8|16|32] */
    525 
    526 /* Convenience macro defined in terms of the others */
    527 
    528 #define PUTINC(a,n,d)   PUT(a,n,d), a += LINK_SIZE
    529 
    530 
    531 /* PCRE uses some other 2-byte quantities that do not change when the size of
    532 offsets changes. There are used for repeat counts and for other things such as
    533 capturing parenthesis numbers in back references. */
    534 
    535 #if defined COMPILE_PCRE8
    536 
    537 #define IMM2_SIZE 2
    538 
    539 #define PUT2(a,n,d)   \
    540   a[n] = (d) >> 8; \
    541   a[(n)+1] = (d) & 255
    542 
    543 /* For reasons that I do not understand, the expression in this GET2 macro is
    544 treated by gcc as a signed expression, even when a is declared as unsigned. It
    545 seems that any kind of arithmetic results in a signed value. */
    546 
    547 #define GET2(a,n) \
    548   (unsigned int)(((a)[n] << 8) | (a)[(n)+1])
    549 
    550 #elif defined COMPILE_PCRE16
    551 
    552 #define IMM2_SIZE 1
    553 
    554 #define PUT2(a,n,d)   \
    555    a[n] = d
    556 
    557 #define GET2(a,n) \
    558    a[n]
    559 
    560 #elif defined COMPILE_PCRE32
    561 
    562 #define IMM2_SIZE 1
    563 
    564 #define PUT2(a,n,d)   \
    565    a[n] = d
    566 
    567 #define GET2(a,n) \
    568    a[n]
    569 
    570 #else
    571 #error Unsupported compiling mode
    572 #endif /* COMPILE_PCRE[8|16|32] */
    573 
    574 #define PUT2INC(a,n,d)  PUT2(a,n,d), a += IMM2_SIZE
    575 
    576 /* The maximum length of a MARK name is currently one data unit; it may be
    577 changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
    578 
    579 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
    580 #define MAX_MARK ((1u << 16) - 1)
    581 #else
    582 #define MAX_MARK ((1u << 8) - 1)
    583 #endif
    584 
    585 /* There is a proposed future special "UTF-21" mode, in which only the lowest
    586 21 bits of a 32-bit character are interpreted as UTF, with the remaining 11
    587 high-order bits available to the application for other uses. In preparation for
    588 the future implementation of this mode, there are macros that load a data item
    589 and, if in this special mode, mask it to 21 bits. These macros all have names
    590 starting with UCHAR21. In all other modes, including the normal 32-bit
    591 library, the macros all have the same simple definitions. When the new mode is
    592 implemented, it is expected that these definitions will be varied appropriately
    593 using #ifdef when compiling the library that supports the special mode. */
    594 
    595 #define UCHAR21(eptr)        (*(eptr))
    596 #define UCHAR21TEST(eptr)    (*(eptr))
    597 #define UCHAR21INC(eptr)     (*(eptr)++)
    598 #define UCHAR21INCTEST(eptr) (*(eptr)++)
    599 
    600 /* When UTF encoding is being used, a character is no longer just a single
    601 byte in 8-bit mode or a single short in 16-bit mode. The macros for character
    602 handling generate simple sequences when used in the basic mode, and more
    603 complicated ones for UTF characters. GETCHARLENTEST and other macros are not
    604 used when UTF is not supported. To make sure they can never even appear when
    605 UTF support is omitted, we don't even define them. */
    606 
    607 #ifndef SUPPORT_UTF
    608 
    609 /* #define MAX_VALUE_FOR_SINGLE_CHAR */
    610 /* #define HAS_EXTRALEN(c) */
    611 /* #define GET_EXTRALEN(c) */
    612 /* #define NOT_FIRSTCHAR(c) */
    613 #define GETCHAR(c, eptr) c = *eptr;
    614 #define GETCHARTEST(c, eptr) c = *eptr;
    615 #define GETCHARINC(c, eptr) c = *eptr++;
    616 #define GETCHARINCTEST(c, eptr) c = *eptr++;
    617 #define GETCHARLEN(c, eptr, len) c = *eptr;
    618 /* #define GETCHARLENTEST(c, eptr, len) */
    619 /* #define BACKCHAR(eptr) */
    620 /* #define FORWARDCHAR(eptr) */
    621 /* #define ACROSSCHAR(condition, eptr, action) */
    622 
    623 #else   /* SUPPORT_UTF */
    624 
    625 /* Tests whether the code point needs extra characters to decode. */
    626 
    627 #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
    628 
    629 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
    630 advancing the pointer. */
    631 
    632 #define GETUTF8(c, eptr) \
    633     { \
    634     if ((c & 0x20) == 0) \
    635       c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
    636     else if ((c & 0x10) == 0) \
    637       c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
    638     else if ((c & 0x08) == 0) \
    639       c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
    640       ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
    641     else if ((c & 0x04) == 0) \
    642       c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
    643           ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
    644           (eptr[4] & 0x3f); \
    645     else \
    646       c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
    647           ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
    648           ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
    649     }
    650 
    651 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
    652 the pointer. */
    653 
    654 #define GETUTF8INC(c, eptr) \
    655     { \
    656     if ((c & 0x20) == 0) \
    657       c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
    658     else if ((c & 0x10) == 0) \
    659       { \
    660       c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
    661       eptr += 2; \
    662       } \
    663     else if ((c & 0x08) == 0) \
    664       { \
    665       c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
    666           ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
    667       eptr += 3; \
    668       } \
    669     else if ((c & 0x04) == 0) \
    670       { \
    671       c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
    672           ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
    673           (eptr[3] & 0x3f); \
    674       eptr += 4; \
    675       } \
    676     else \
    677       { \
    678       c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
    679           ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
    680           ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
    681       eptr += 5; \
    682       } \
    683     }
    684 
    685 #if defined COMPILE_PCRE8
    686 
    687 /* These macros were originally written in the form of loops that used data
    688 from the tables whose names start with PRIV(utf8_table). They were rewritten by
    689 a user so as not to use loops, because in some environments this gives a
    690 significant performance advantage, and it seems never to do any harm. */
    691 
    692 /* Tells the biggest code point which can be encoded as a single character. */
    693 
    694 #define MAX_VALUE_FOR_SINGLE_CHAR 127
    695 
    696 /* Tests whether the code point needs extra characters to decode. */
    697 
    698 #define HAS_EXTRALEN(c) ((c) >= 0xc0)
    699 
    700 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
    701 Otherwise it has an undefined behaviour. */
    702 
    703 #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
    704 
    705 /* Returns TRUE, if the given character is not the first character
    706 of a UTF sequence. */
    707 
    708 #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
    709 
    710 /* Get the next UTF-8 character, not advancing the pointer. This is called when
    711 we know we are in UTF-8 mode. */
    712 
    713 #define GETCHAR(c, eptr) \
    714   c = *eptr; \
    715   if (c >= 0xc0) GETUTF8(c, eptr);
    716 
    717 /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
    718 pointer. */
    719 
    720 #define GETCHARTEST(c, eptr) \
    721   c = *eptr; \
    722   if (utf && c >= 0xc0) GETUTF8(c, eptr);
    723 
    724 /* Get the next UTF-8 character, advancing the pointer. This is called when we
    725 know we are in UTF-8 mode. */
    726 
    727 #define GETCHARINC(c, eptr) \
    728   c = *eptr++; \
    729   if (c >= 0xc0) GETUTF8INC(c, eptr);
    730 
    731 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
    732 This is called when we don't know if we are in UTF-8 mode. */
    733 
    734 #define GETCHARINCTEST(c, eptr) \
    735   c = *eptr++; \
    736   if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
    737 
    738 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
    739 advancing the pointer, incrementing the length. */
    740 
    741 #define GETUTF8LEN(c, eptr, len) \
    742     { \
    743     if ((c & 0x20) == 0) \
    744       { \
    745       c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
    746       len++; \
    747       } \
    748     else if ((c & 0x10)  == 0) \
    749       { \
    750       c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
    751       len += 2; \
    752       } \
    753     else if ((c & 0x08)  == 0) \
    754       {\
    755       c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
    756           ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
    757       len += 3; \
    758       } \
    759     else if ((c & 0x04)  == 0) \
    760       { \
    761       c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
    762           ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
    763           (eptr[4] & 0x3f); \
    764       len += 4; \
    765       } \
    766     else \
    767       {\
    768       c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
    769           ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
    770           ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
    771       len += 5; \
    772       } \
    773     }
    774 
    775 /* Get the next UTF-8 character, not advancing the pointer, incrementing length
    776 if there are extra bytes. This is called when we know we are in UTF-8 mode. */
    777 
    778 #define GETCHARLEN(c, eptr, len) \
    779   c = *eptr; \
    780   if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
    781 
    782 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
    783 pointer, incrementing length if there are extra bytes. This is called when we
    784 do not know if we are in UTF-8 mode. */
    785 
    786 #define GETCHARLENTEST(c, eptr, len) \
    787   c = *eptr; \
    788   if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
    789 
    790 /* If the pointer is not at the start of a character, move it back until
    791 it is. This is called only in UTF-8 mode - we don't put a test within the macro
    792 because almost all calls are already within a block of UTF-8 only code. */
    793 
    794 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
    795 
    796 /* Same as above, just in the other direction. */
    797 #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
    798 
    799 /* Same as above, but it allows a fully customizable form. */
    800 #define ACROSSCHAR(condition, eptr, action) \
    801   while((condition) && ((eptr) & 0xc0) == 0x80) action
    802 
    803 #elif defined COMPILE_PCRE16
    804 
    805 /* Tells the biggest code point which can be encoded as a single character. */
    806 
    807 #define MAX_VALUE_FOR_SINGLE_CHAR 65535
    808 
    809 /* Tests whether the code point needs extra characters to decode. */
    810 
    811 #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
    812 
    813 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
    814 Otherwise it has an undefined behaviour. */
    815 
    816 #define GET_EXTRALEN(c) 1
    817 
    818 /* Returns TRUE, if the given character is not the first character
    819 of a UTF sequence. */
    820 
    821 #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
    822 
    823 /* Base macro to pick up the low surrogate of a UTF-16 character, not
    824 advancing the pointer. */
    825 
    826 #define GETUTF16(c, eptr) \
    827    { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
    828 
    829 /* Get the next UTF-16 character, not advancing the pointer. This is called when
    830 we know we are in UTF-16 mode. */
    831 
    832 #define GETCHAR(c, eptr) \
    833   c = *eptr; \
    834   if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
    835 
    836 /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
    837 pointer. */
    838 
    839 #define GETCHARTEST(c, eptr) \
    840   c = *eptr; \
    841   if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
    842 
    843 /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
    844 the pointer. */
    845 
    846 #define GETUTF16INC(c, eptr) \
    847    { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
    848 
    849 /* Get the next UTF-16 character, advancing the pointer. This is called when we
    850 know we are in UTF-16 mode. */
    851 
    852 #define GETCHARINC(c, eptr) \
    853   c = *eptr++; \
    854   if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
    855 
    856 /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
    857 This is called when we don't know if we are in UTF-16 mode. */
    858 
    859 #define GETCHARINCTEST(c, eptr) \
    860   c = *eptr++; \
    861   if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
    862 
    863 /* Base macro to pick up the low surrogate of a UTF-16 character, not
    864 advancing the pointer, incrementing the length. */
    865 
    866 #define GETUTF16LEN(c, eptr, len) \
    867    { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
    868 
    869 /* Get the next UTF-16 character, not advancing the pointer, incrementing
    870 length if there is a low surrogate. This is called when we know we are in
    871 UTF-16 mode. */
    872 
    873 #define GETCHARLEN(c, eptr, len) \
    874   c = *eptr; \
    875   if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
    876 
    877 /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
    878 pointer, incrementing length if there is a low surrogate. This is called when
    879 we do not know if we are in UTF-16 mode. */
    880 
    881 #define GETCHARLENTEST(c, eptr, len) \
    882   c = *eptr; \
    883   if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
    884 
    885 /* If the pointer is not at the start of a character, move it back until
    886 it is. This is called only in UTF-16 mode - we don't put a test within the
    887 macro because almost all calls are already within a block of UTF-16 only
    888 code. */
    889 
    890 #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
    891 
    892 /* Same as above, just in the other direction. */
    893 #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
    894 
    895 /* Same as above, but it allows a fully customizable form. */
    896 #define ACROSSCHAR(condition, eptr, action) \
    897   if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
    898 
    899 #elif defined COMPILE_PCRE32
    900 
    901 /* These are trivial for the 32-bit library, since all UTF-32 characters fit
    902 into one pcre_uchar unit. */
    903 #define MAX_VALUE_FOR_SINGLE_CHAR (0x10ffffu)
    904 #define HAS_EXTRALEN(c) (0)
    905 #define GET_EXTRALEN(c) (0)
    906 #define NOT_FIRSTCHAR(c) (0)
    907 
    908 /* Get the next UTF-32 character, not advancing the pointer. This is called when
    909 we know we are in UTF-32 mode. */
    910 
    911 #define GETCHAR(c, eptr) \
    912   c = *(eptr);
    913 
    914 /* Get the next UTF-32 character, testing for UTF-32 mode, and not advancing the
    915 pointer. */
    916 
    917 #define GETCHARTEST(c, eptr) \
    918   c = *(eptr);
    919 
    920 /* Get the next UTF-32 character, advancing the pointer. This is called when we
    921 know we are in UTF-32 mode. */
    922 
    923 #define GETCHARINC(c, eptr) \
    924   c = *((eptr)++);
    925 
    926 /* Get the next character, testing for UTF-32 mode, and advancing the pointer.
    927 This is called when we don't know if we are in UTF-32 mode. */
    928 
    929 #define GETCHARINCTEST(c, eptr) \
    930   c = *((eptr)++);
    931 
    932 /* Get the next UTF-32 character, not advancing the pointer, not incrementing
    933 length (since all UTF-32 is of length 1). This is called when we know we are in
    934 UTF-32 mode. */
    935 
    936 #define GETCHARLEN(c, eptr, len) \
    937   GETCHAR(c, eptr)
    938 
    939 /* Get the next UTF-32character, testing for UTF-32 mode, not advancing the
    940 pointer, not incrementing the length (since all UTF-32 is of length 1).
    941 This is called when we do not know if we are in UTF-32 mode. */
    942 
    943 #define GETCHARLENTEST(c, eptr, len) \
    944   GETCHARTEST(c, eptr)
    945 
    946 /* If the pointer is not at the start of a character, move it back until
    947 it is. This is called only in UTF-32 mode - we don't put a test within the
    948 macro because almost all calls are already within a block of UTF-32 only
    949 code.
    950 These are all no-ops since all UTF-32 characters fit into one pcre_uchar. */
    951 
    952 #define BACKCHAR(eptr) do { } while (0)
    953 
    954 /* Same as above, just in the other direction. */
    955 #define FORWARDCHAR(eptr) do { } while (0)
    956 
    957 /* Same as above, but it allows a fully customizable form. */
    958 #define ACROSSCHAR(condition, eptr, action) do { } while (0)
    959 
    960 #else
    961 #error Unsupported compiling mode
    962 #endif /* COMPILE_PCRE[8|16|32] */
    963 
    964 #endif  /* SUPPORT_UTF */
    965 
    966 /* Tests for Unicode horizontal and vertical whitespace characters must check a
    967 number of different values. Using a switch statement for this generates the
    968 fastest code (no loop, no memory access), and there are several places in the
    969 interpreter code where this happens. In order to ensure that all the case lists
    970 remain in step, we use macros so that there is only one place where the lists
    971 are defined.
    972 
    973 These values are also required as lists in pcre_compile.c when processing \h,
    974 \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
    975 macros that define the values are here so that all the definitions are
    976 together. The lists must be in ascending character order, terminated by
    977 NOTACHAR (which is 0xffffffff).
    978 
    979 Any changes should ensure that the various macros are kept in step with each
    980 other. NOTE: The values also appear in pcre_jit_compile.c. */
    981 
    982 /* ------ ASCII/Unicode environments ------ */
    983 
    984 #ifndef EBCDIC
    985 
    986 #define HSPACE_LIST \
    987   CHAR_HT, CHAR_SPACE, CHAR_NBSP, \
    988   0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
    989   0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
    990   NOTACHAR
    991 
    992 #define HSPACE_MULTIBYTE_CASES \
    993   case 0x1680:  /* OGHAM SPACE MARK */ \
    994   case 0x180e:  /* MONGOLIAN VOWEL SEPARATOR */ \
    995   case 0x2000:  /* EN QUAD */ \
    996   case 0x2001:  /* EM QUAD */ \
    997   case 0x2002:  /* EN SPACE */ \
    998   case 0x2003:  /* EM SPACE */ \
    999   case 0x2004:  /* THREE-PER-EM SPACE */ \
   1000   case 0x2005:  /* FOUR-PER-EM SPACE */ \
   1001   case 0x2006:  /* SIX-PER-EM SPACE */ \
   1002   case 0x2007:  /* FIGURE SPACE */ \
   1003   case 0x2008:  /* PUNCTUATION SPACE */ \
   1004   case 0x2009:  /* THIN SPACE */ \
   1005   case 0x200A:  /* HAIR SPACE */ \
   1006   case 0x202f:  /* NARROW NO-BREAK SPACE */ \
   1007   case 0x205f:  /* MEDIUM MATHEMATICAL SPACE */ \
   1008   case 0x3000   /* IDEOGRAPHIC SPACE */
   1009 
   1010 #define HSPACE_BYTE_CASES \
   1011   case CHAR_HT: \
   1012   case CHAR_SPACE: \
   1013   case CHAR_NBSP
   1014 
   1015 #define HSPACE_CASES \
   1016   HSPACE_BYTE_CASES: \
   1017   HSPACE_MULTIBYTE_CASES
   1018 
   1019 #define VSPACE_LIST \
   1020   CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
   1021 
   1022 #define VSPACE_MULTIBYTE_CASES \
   1023   case 0x2028:    /* LINE SEPARATOR */ \
   1024   case 0x2029     /* PARAGRAPH SEPARATOR */
   1025 
   1026 #define VSPACE_BYTE_CASES \
   1027   case CHAR_LF: \
   1028   case CHAR_VT: \
   1029   case CHAR_FF: \
   1030   case CHAR_CR: \
   1031   case CHAR_NEL
   1032 
   1033 #define VSPACE_CASES \
   1034   VSPACE_BYTE_CASES: \
   1035   VSPACE_MULTIBYTE_CASES
   1036 
   1037 /* ------ EBCDIC environments ------ */
   1038 
   1039 #else
   1040 #define HSPACE_LIST CHAR_HT, CHAR_SPACE, CHAR_NBSP, NOTACHAR
   1041 
   1042 #define HSPACE_BYTE_CASES \
   1043   case CHAR_HT: \
   1044   case CHAR_SPACE: \
   1045   case CHAR_NBSP
   1046 
   1047 #define HSPACE_CASES HSPACE_BYTE_CASES
   1048 
   1049 #ifdef EBCDIC_NL25
   1050 #define VSPACE_LIST \
   1051   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
   1052 #else
   1053 #define VSPACE_LIST \
   1054   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
   1055 #endif
   1056 
   1057 #define VSPACE_BYTE_CASES \
   1058   case CHAR_LF: \
   1059   case CHAR_VT: \
   1060   case CHAR_FF: \
   1061   case CHAR_CR: \
   1062   case CHAR_NEL
   1063 
   1064 #define VSPACE_CASES VSPACE_BYTE_CASES
   1065 #endif  /* EBCDIC */
   1066 
   1067 /* ------ End of whitespace macros ------ */
   1068 
   1069 
   1070 
   1071 /* Private flags containing information about the compiled regex. They used to
   1072 live at the top end of the options word, but that got almost full, so they were
   1073 moved to a 16-bit flags word - which got almost full, so now they are in a
   1074 32-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as the
   1075 restrictions on partial matching have been lifted. It remains for backwards
   1076 compatibility. */
   1077 
   1078 #define PCRE_MODE8         0x00000001  /* compiled in 8 bit mode */
   1079 #define PCRE_MODE16        0x00000002  /* compiled in 16 bit mode */
   1080 #define PCRE_MODE32        0x00000004  /* compiled in 32 bit mode */
   1081 #define PCRE_FIRSTSET      0x00000010  /* first_char is set */
   1082 #define PCRE_FCH_CASELESS  0x00000020  /* caseless first char */
   1083 #define PCRE_REQCHSET      0x00000040  /* req_byte is set */
   1084 #define PCRE_RCH_CASELESS  0x00000080  /* caseless requested char */
   1085 #define PCRE_STARTLINE     0x00000100  /* start after \n for multiline */
   1086 #define PCRE_NOPARTIAL     0x00000200  /* can't use partial with this regex */
   1087 #define PCRE_JCHANGED      0x00000400  /* j option used in regex */
   1088 #define PCRE_HASCRORLF     0x00000800  /* explicit \r or \n in pattern */
   1089 #define PCRE_HASTHEN       0x00001000  /* pattern contains (*THEN) */
   1090 #define PCRE_MLSET         0x00002000  /* match limit set by regex */
   1091 #define PCRE_RLSET         0x00004000  /* recursion limit set by regex */
   1092 #define PCRE_MATCH_EMPTY   0x00008000  /* pattern can match empty string */
   1093 
   1094 #if defined COMPILE_PCRE8
   1095 #define PCRE_MODE          PCRE_MODE8
   1096 #elif defined COMPILE_PCRE16
   1097 #define PCRE_MODE          PCRE_MODE16
   1098 #elif defined COMPILE_PCRE32
   1099 #define PCRE_MODE          PCRE_MODE32
   1100 #endif
   1101 #define PCRE_MODE_MASK     (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
   1102 
   1103 /* Flags for the "extra" block produced by pcre_study(). */
   1104 
   1105 #define PCRE_STUDY_MAPPED  0x0001  /* a map of starting chars exists */
   1106 #define PCRE_STUDY_MINLEN  0x0002  /* a minimum length field exists */
   1107 
   1108 /* Masks for identifying the public options that are permitted at compile
   1109 time, run time, or study time, respectively. */
   1110 
   1111 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
   1112                            PCRE_NEWLINE_ANYCRLF)
   1113 
   1114 #define PUBLIC_COMPILE_OPTIONS \
   1115   (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
   1116    PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
   1117    PCRE_NO_AUTO_CAPTURE|PCRE_NO_AUTO_POSSESS| \
   1118    PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
   1119    PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
   1120    PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE|PCRE_NEVER_UTF)
   1121 
   1122 #define PUBLIC_EXEC_OPTIONS \
   1123   (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
   1124    PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
   1125    PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
   1126 
   1127 #define PUBLIC_DFA_EXEC_OPTIONS \
   1128   (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
   1129    PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
   1130    PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
   1131    PCRE_NO_START_OPTIMIZE)
   1132 
   1133 #define PUBLIC_STUDY_OPTIONS \
   1134    (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
   1135     PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
   1136 
   1137 #define PUBLIC_JIT_EXEC_OPTIONS \
   1138    (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
   1139     PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
   1140 
   1141 /* Magic number to provide a small check against being handed junk. */
   1142 
   1143 #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
   1144 
   1145 /* This variable is used to detect a loaded regular expression
   1146 in different endianness. */
   1147 
   1148 #define REVERSED_MAGIC_NUMBER  0x45524350UL   /* 'ERCP' */
   1149 
   1150 /* The maximum remaining length of subject we are prepared to search for a
   1151 req_byte match. */
   1152 
   1153 #define REQ_BYTE_MAX 1000
   1154 
   1155 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
   1156 environments where these macros are defined elsewhere. Unfortunately, there
   1157 is no way to do the same for the typedef. */
   1158 
   1159 typedef int BOOL;
   1160 
   1161 #ifndef FALSE
   1162 #define FALSE   0
   1163 #define TRUE    1
   1164 #endif
   1165 
   1166 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
   1167 character constants like '*' because the compiler would emit their EBCDIC code,
   1168 which is different from their ASCII/UTF-8 code. Instead we define macros for
   1169 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
   1170 is enabled. When UTF-8 support is not enabled, the definitions use character
   1171 literals. Both character and string versions of each character are needed, and
   1172 there are some longer strings as well.
   1173 
   1174 This means that, on EBCDIC platforms, the PCRE library can handle either
   1175 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
   1176 would need different lookups depending on whether PCRE_UTF8 was set or not.
   1177 This would make it impossible to use characters in switch/case statements,
   1178 which would reduce performance. For a theoretical use (which nobody has asked
   1179 for) in a minority area (EBCDIC platforms), this is not sensible. Any
   1180 application that did need both could compile two versions of the library, using
   1181 macros to give the functions distinct names. */
   1182 
   1183 #ifndef SUPPORT_UTF
   1184 
   1185 /* UTF-8 support is not enabled; use the platform-dependent character literals
   1186 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
   1187 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
   1188 characters, a common practice has been to use its NL (0x15) character as the
   1189 line terminator in C-like processing environments. However, sometimes the LF
   1190 (0x25) character is used instead, according to this Unicode document:
   1191 
   1192 http://unicode.org/standard/reports/tr13/tr13-5.html
   1193 
   1194 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
   1195 instead. Whichever is *not* chosen is defined as NEL.
   1196 
   1197 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
   1198 same code point. */
   1199 
   1200 #ifdef EBCDIC
   1201 
   1202 #ifndef EBCDIC_NL25
   1203 #define CHAR_NL                     '\x15'
   1204 #define CHAR_NEL                    '\x25'
   1205 #define STR_NL                      "\x15"
   1206 #define STR_NEL                     "\x25"
   1207 #else
   1208 #define CHAR_NL                     '\x25'
   1209 #define CHAR_NEL                    '\x15'
   1210 #define STR_NL                      "\x25"
   1211 #define STR_NEL                     "\x15"
   1212 #endif
   1213 
   1214 #define CHAR_LF                     CHAR_NL
   1215 #define STR_LF                      STR_NL
   1216 
   1217 #define CHAR_ESC                    '\047'
   1218 #define CHAR_DEL                    '\007'
   1219 #define CHAR_NBSP                   '\x41'
   1220 #define STR_ESC                     "\047"
   1221 #define STR_DEL                     "\007"
   1222 
   1223 #else  /* Not EBCDIC */
   1224 
   1225 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
   1226 compatibility. NEL is the Unicode newline character; make sure it is
   1227 a positive value. */
   1228 
   1229 #define CHAR_LF                     '\n'
   1230 #define CHAR_NL                     CHAR_LF
   1231 #define CHAR_NEL                    ((unsigned char)'\x85')
   1232 #define CHAR_ESC                    '\033'
   1233 #define CHAR_DEL                    '\177'
   1234 #define CHAR_NBSP                   ((unsigned char)'\xa0')
   1235 
   1236 #define STR_LF                      "\n"
   1237 #define STR_NL                      STR_LF
   1238 #define STR_NEL                     "\x85"
   1239 #define STR_ESC                     "\033"
   1240 #define STR_DEL                     "\177"
   1241 
   1242 #endif  /* EBCDIC */
   1243 
   1244 /* The remaining definitions work in both environments. */
   1245 
   1246 #define CHAR_NULL                   '\0'
   1247 #define CHAR_HT                     '\t'
   1248 #define CHAR_VT                     '\v'
   1249 #define CHAR_FF                     '\f'
   1250 #define CHAR_CR                     '\r'
   1251 #define CHAR_BS                     '\b'
   1252 #define CHAR_BEL                    '\a'
   1253 
   1254 #define CHAR_SPACE                  ' '
   1255 #define CHAR_EXCLAMATION_MARK       '!'
   1256 #define CHAR_QUOTATION_MARK         '"'
   1257 #define CHAR_NUMBER_SIGN            '#'
   1258 #define CHAR_DOLLAR_SIGN            '$'
   1259 #define CHAR_PERCENT_SIGN           '%'
   1260 #define CHAR_AMPERSAND              '&'
   1261 #define CHAR_APOSTROPHE             '\''
   1262 #define CHAR_LEFT_PARENTHESIS       '('
   1263 #define CHAR_RIGHT_PARENTHESIS      ')'
   1264 #define CHAR_ASTERISK               '*'
   1265 #define CHAR_PLUS                   '+'
   1266 #define CHAR_COMMA                  ','
   1267 #define CHAR_MINUS                  '-'
   1268 #define CHAR_DOT                    '.'
   1269 #define CHAR_SLASH                  '/'
   1270 #define CHAR_0                      '0'
   1271 #define CHAR_1                      '1'
   1272 #define CHAR_2                      '2'
   1273 #define CHAR_3                      '3'
   1274 #define CHAR_4                      '4'
   1275 #define CHAR_5                      '5'
   1276 #define CHAR_6                      '6'
   1277 #define CHAR_7                      '7'
   1278 #define CHAR_8                      '8'
   1279 #define CHAR_9                      '9'
   1280 #define CHAR_COLON                  ':'
   1281 #define CHAR_SEMICOLON              ';'
   1282 #define CHAR_LESS_THAN_SIGN         '<'
   1283 #define CHAR_EQUALS_SIGN            '='
   1284 #define CHAR_GREATER_THAN_SIGN      '>'
   1285 #define CHAR_QUESTION_MARK          '?'
   1286 #define CHAR_COMMERCIAL_AT          '@'
   1287 #define CHAR_A                      'A'
   1288 #define CHAR_B                      'B'
   1289 #define CHAR_C                      'C'
   1290 #define CHAR_D                      'D'
   1291 #define CHAR_E                      'E'
   1292 #define CHAR_F                      'F'
   1293 #define CHAR_G                      'G'
   1294 #define CHAR_H                      'H'
   1295 #define CHAR_I                      'I'
   1296 #define CHAR_J                      'J'
   1297 #define CHAR_K                      'K'
   1298 #define CHAR_L                      'L'
   1299 #define CHAR_M                      'M'
   1300 #define CHAR_N                      'N'
   1301 #define CHAR_O                      'O'
   1302 #define CHAR_P                      'P'
   1303 #define CHAR_Q                      'Q'
   1304 #define CHAR_R                      'R'
   1305 #define CHAR_S                      'S'
   1306 #define CHAR_T                      'T'
   1307 #define CHAR_U                      'U'
   1308 #define CHAR_V                      'V'
   1309 #define CHAR_W                      'W'
   1310 #define CHAR_X                      'X'
   1311 #define CHAR_Y                      'Y'
   1312 #define CHAR_Z                      'Z'
   1313 #define CHAR_LEFT_SQUARE_BRACKET    '['
   1314 #define CHAR_BACKSLASH              '\\'
   1315 #define CHAR_RIGHT_SQUARE_BRACKET   ']'
   1316 #define CHAR_CIRCUMFLEX_ACCENT      '^'
   1317 #define CHAR_UNDERSCORE             '_'
   1318 #define CHAR_GRAVE_ACCENT           '`'
   1319 #define CHAR_a                      'a'
   1320 #define CHAR_b                      'b'
   1321 #define CHAR_c                      'c'
   1322 #define CHAR_d                      'd'
   1323 #define CHAR_e                      'e'
   1324 #define CHAR_f                      'f'
   1325 #define CHAR_g                      'g'
   1326 #define CHAR_h                      'h'
   1327 #define CHAR_i                      'i'
   1328 #define CHAR_j                      'j'
   1329 #define CHAR_k                      'k'
   1330 #define CHAR_l                      'l'
   1331 #define CHAR_m                      'm'
   1332 #define CHAR_n                      'n'
   1333 #define CHAR_o                      'o'
   1334 #define CHAR_p                      'p'
   1335 #define CHAR_q                      'q'
   1336 #define CHAR_r                      'r'
   1337 #define CHAR_s                      's'
   1338 #define CHAR_t                      't'
   1339 #define CHAR_u                      'u'
   1340 #define CHAR_v                      'v'
   1341 #define CHAR_w                      'w'
   1342 #define CHAR_x                      'x'
   1343 #define CHAR_y                      'y'
   1344 #define CHAR_z                      'z'
   1345 #define CHAR_LEFT_CURLY_BRACKET     '{'
   1346 #define CHAR_VERTICAL_LINE          '|'
   1347 #define CHAR_RIGHT_CURLY_BRACKET    '}'
   1348 #define CHAR_TILDE                  '~'
   1349 
   1350 #define STR_HT                      "\t"
   1351 #define STR_VT                      "\v"
   1352 #define STR_FF                      "\f"
   1353 #define STR_CR                      "\r"
   1354 #define STR_BS                      "\b"
   1355 #define STR_BEL                     "\a"
   1356 
   1357 #define STR_SPACE                   " "
   1358 #define STR_EXCLAMATION_MARK        "!"
   1359 #define STR_QUOTATION_MARK          "\""
   1360 #define STR_NUMBER_SIGN             "#"
   1361 #define STR_DOLLAR_SIGN             "$"
   1362 #define STR_PERCENT_SIGN            "%"
   1363 #define STR_AMPERSAND               "&"
   1364 #define STR_APOSTROPHE              "'"
   1365 #define STR_LEFT_PARENTHESIS        "("
   1366 #define STR_RIGHT_PARENTHESIS       ")"
   1367 #define STR_ASTERISK                "*"
   1368 #define STR_PLUS                    "+"
   1369 #define STR_COMMA                   ","
   1370 #define STR_MINUS                   "-"
   1371 #define STR_DOT                     "."
   1372 #define STR_SLASH                   "/"
   1373 #define STR_0                       "0"
   1374 #define STR_1                       "1"
   1375 #define STR_2                       "2"
   1376 #define STR_3                       "3"
   1377 #define STR_4                       "4"
   1378 #define STR_5                       "5"
   1379 #define STR_6                       "6"
   1380 #define STR_7                       "7"
   1381 #define STR_8                       "8"
   1382 #define STR_9                       "9"
   1383 #define STR_COLON                   ":"
   1384 #define STR_SEMICOLON               ";"
   1385 #define STR_LESS_THAN_SIGN          "<"
   1386 #define STR_EQUALS_SIGN             "="
   1387 #define STR_GREATER_THAN_SIGN       ">"
   1388 #define STR_QUESTION_MARK           "?"
   1389 #define STR_COMMERCIAL_AT           "@"
   1390 #define STR_A                       "A"
   1391 #define STR_B                       "B"
   1392 #define STR_C                       "C"
   1393 #define STR_D                       "D"
   1394 #define STR_E                       "E"
   1395 #define STR_F                       "F"
   1396 #define STR_G                       "G"
   1397 #define STR_H                       "H"
   1398 #define STR_I                       "I"
   1399 #define STR_J                       "J"
   1400 #define STR_K                       "K"
   1401 #define STR_L                       "L"
   1402 #define STR_M                       "M"
   1403 #define STR_N                       "N"
   1404 #define STR_O                       "O"
   1405 #define STR_P                       "P"
   1406 #define STR_Q                       "Q"
   1407 #define STR_R                       "R"
   1408 #define STR_S                       "S"
   1409 #define STR_T                       "T"
   1410 #define STR_U                       "U"
   1411 #define STR_V                       "V"
   1412 #define STR_W                       "W"
   1413 #define STR_X                       "X"
   1414 #define STR_Y                       "Y"
   1415 #define STR_Z                       "Z"
   1416 #define STR_LEFT_SQUARE_BRACKET     "["
   1417 #define STR_BACKSLASH               "\\"
   1418 #define STR_RIGHT_SQUARE_BRACKET    "]"
   1419 #define STR_CIRCUMFLEX_ACCENT       "^"
   1420 #define STR_UNDERSCORE              "_"
   1421 #define STR_GRAVE_ACCENT            "`"
   1422 #define STR_a                       "a"
   1423 #define STR_b                       "b"
   1424 #define STR_c                       "c"
   1425 #define STR_d                       "d"
   1426 #define STR_e                       "e"
   1427 #define STR_f                       "f"
   1428 #define STR_g                       "g"
   1429 #define STR_h                       "h"
   1430 #define STR_i                       "i"
   1431 #define STR_j                       "j"
   1432 #define STR_k                       "k"
   1433 #define STR_l                       "l"
   1434 #define STR_m                       "m"
   1435 #define STR_n                       "n"
   1436 #define STR_o                       "o"
   1437 #define STR_p                       "p"
   1438 #define STR_q                       "q"
   1439 #define STR_r                       "r"
   1440 #define STR_s                       "s"
   1441 #define STR_t                       "t"
   1442 #define STR_u                       "u"
   1443 #define STR_v                       "v"
   1444 #define STR_w                       "w"
   1445 #define STR_x                       "x"
   1446 #define STR_y                       "y"
   1447 #define STR_z                       "z"
   1448 #define STR_LEFT_CURLY_BRACKET      "{"
   1449 #define STR_VERTICAL_LINE           "|"
   1450 #define STR_RIGHT_CURLY_BRACKET     "}"
   1451 #define STR_TILDE                   "~"
   1452 
   1453 #define STRING_ACCEPT0              "ACCEPT\0"
   1454 #define STRING_COMMIT0              "COMMIT\0"
   1455 #define STRING_F0                   "F\0"
   1456 #define STRING_FAIL0                "FAIL\0"
   1457 #define STRING_MARK0                "MARK\0"
   1458 #define STRING_PRUNE0               "PRUNE\0"
   1459 #define STRING_SKIP0                "SKIP\0"
   1460 #define STRING_THEN                 "THEN"
   1461 
   1462 #define STRING_alpha0               "alpha\0"
   1463 #define STRING_lower0               "lower\0"
   1464 #define STRING_upper0               "upper\0"
   1465 #define STRING_alnum0               "alnum\0"
   1466 #define STRING_ascii0               "ascii\0"
   1467 #define STRING_blank0               "blank\0"
   1468 #define STRING_cntrl0               "cntrl\0"
   1469 #define STRING_digit0               "digit\0"
   1470 #define STRING_graph0               "graph\0"
   1471 #define STRING_print0               "print\0"
   1472 #define STRING_punct0               "punct\0"
   1473 #define STRING_space0               "space\0"
   1474 #define STRING_word0                "word\0"
   1475 #define STRING_xdigit               "xdigit"
   1476 
   1477 #define STRING_DEFINE               "DEFINE"
   1478 #define STRING_WEIRD_STARTWORD      "[:<:]]"
   1479 #define STRING_WEIRD_ENDWORD        "[:>:]]"
   1480 
   1481 #define STRING_CR_RIGHTPAR              "CR)"
   1482 #define STRING_LF_RIGHTPAR              "LF)"
   1483 #define STRING_CRLF_RIGHTPAR            "CRLF)"
   1484 #define STRING_ANY_RIGHTPAR             "ANY)"
   1485 #define STRING_ANYCRLF_RIGHTPAR         "ANYCRLF)"
   1486 #define STRING_BSR_ANYCRLF_RIGHTPAR     "BSR_ANYCRLF)"
   1487 #define STRING_BSR_UNICODE_RIGHTPAR     "BSR_UNICODE)"
   1488 #define STRING_UTF8_RIGHTPAR            "UTF8)"
   1489 #define STRING_UTF16_RIGHTPAR           "UTF16)"
   1490 #define STRING_UTF32_RIGHTPAR           "UTF32)"
   1491 #define STRING_UTF_RIGHTPAR             "UTF)"
   1492 #define STRING_UCP_RIGHTPAR             "UCP)"
   1493 #define STRING_NO_AUTO_POSSESS_RIGHTPAR "NO_AUTO_POSSESS)"
   1494 #define STRING_NO_START_OPT_RIGHTPAR    "NO_START_OPT)"
   1495 #define STRING_LIMIT_MATCH_EQ           "LIMIT_MATCH="
   1496 #define STRING_LIMIT_RECURSION_EQ       "LIMIT_RECURSION="
   1497 
   1498 #else  /* SUPPORT_UTF */
   1499 
   1500 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
   1501 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
   1502 only. */
   1503 
   1504 #define CHAR_HT                     '\011'
   1505 #define CHAR_VT                     '\013'
   1506 #define CHAR_FF                     '\014'
   1507 #define CHAR_CR                     '\015'
   1508 #define CHAR_LF                     '\012'
   1509 #define CHAR_NL                     CHAR_LF
   1510 #define CHAR_NEL                    ((unsigned char)'\x85')
   1511 #define CHAR_BS                     '\010'
   1512 #define CHAR_BEL                    '\007'
   1513 #define CHAR_ESC                    '\033'
   1514 #define CHAR_DEL                    '\177'
   1515 
   1516 #define CHAR_NULL                   '\0'
   1517 #define CHAR_SPACE                  '\040'
   1518 #define CHAR_EXCLAMATION_MARK       '\041'
   1519 #define CHAR_QUOTATION_MARK         '\042'
   1520 #define CHAR_NUMBER_SIGN            '\043'
   1521 #define CHAR_DOLLAR_SIGN            '\044'
   1522 #define CHAR_PERCENT_SIGN           '\045'
   1523 #define CHAR_AMPERSAND              '\046'
   1524 #define CHAR_APOSTROPHE             '\047'
   1525 #define CHAR_LEFT_PARENTHESIS       '\050'
   1526 #define CHAR_RIGHT_PARENTHESIS      '\051'
   1527 #define CHAR_ASTERISK               '\052'
   1528 #define CHAR_PLUS                   '\053'
   1529 #define CHAR_COMMA                  '\054'
   1530 #define CHAR_MINUS                  '\055'
   1531 #define CHAR_DOT                    '\056'
   1532 #define CHAR_SLASH                  '\057'
   1533 #define CHAR_0                      '\060'
   1534 #define CHAR_1                      '\061'
   1535 #define CHAR_2                      '\062'
   1536 #define CHAR_3                      '\063'
   1537 #define CHAR_4                      '\064'
   1538 #define CHAR_5                      '\065'
   1539 #define CHAR_6                      '\066'
   1540 #define CHAR_7                      '\067'
   1541 #define CHAR_8                      '\070'
   1542 #define CHAR_9                      '\071'
   1543 #define CHAR_COLON                  '\072'
   1544 #define CHAR_SEMICOLON              '\073'
   1545 #define CHAR_LESS_THAN_SIGN         '\074'
   1546 #define CHAR_EQUALS_SIGN            '\075'
   1547 #define CHAR_GREATER_THAN_SIGN      '\076'
   1548 #define CHAR_QUESTION_MARK          '\077'
   1549 #define CHAR_COMMERCIAL_AT          '\100'
   1550 #define CHAR_A                      '\101'
   1551 #define CHAR_B                      '\102'
   1552 #define CHAR_C                      '\103'
   1553 #define CHAR_D                      '\104'
   1554 #define CHAR_E                      '\105'
   1555 #define CHAR_F                      '\106'
   1556 #define CHAR_G                      '\107'
   1557 #define CHAR_H                      '\110'
   1558 #define CHAR_I                      '\111'
   1559 #define CHAR_J                      '\112'
   1560 #define CHAR_K                      '\113'
   1561 #define CHAR_L                      '\114'
   1562 #define CHAR_M                      '\115'
   1563 #define CHAR_N                      '\116'
   1564 #define CHAR_O                      '\117'
   1565 #define CHAR_P                      '\120'
   1566 #define CHAR_Q                      '\121'
   1567 #define CHAR_R                      '\122'
   1568 #define CHAR_S                      '\123'
   1569 #define CHAR_T                      '\124'
   1570 #define CHAR_U                      '\125'
   1571 #define CHAR_V                      '\126'
   1572 #define CHAR_W                      '\127'
   1573 #define CHAR_X                      '\130'
   1574 #define CHAR_Y                      '\131'
   1575 #define CHAR_Z                      '\132'
   1576 #define CHAR_LEFT_SQUARE_BRACKET    '\133'
   1577 #define CHAR_BACKSLASH              '\134'
   1578 #define CHAR_RIGHT_SQUARE_BRACKET   '\135'
   1579 #define CHAR_CIRCUMFLEX_ACCENT      '\136'
   1580 #define CHAR_UNDERSCORE             '\137'
   1581 #define CHAR_GRAVE_ACCENT           '\140'
   1582 #define CHAR_a                      '\141'
   1583 #define CHAR_b                      '\142'
   1584 #define CHAR_c                      '\143'
   1585 #define CHAR_d                      '\144'
   1586 #define CHAR_e                      '\145'
   1587 #define CHAR_f                      '\146'
   1588 #define CHAR_g                      '\147'
   1589 #define CHAR_h                      '\150'
   1590 #define CHAR_i                      '\151'
   1591 #define CHAR_j                      '\152'
   1592 #define CHAR_k                      '\153'
   1593 #define CHAR_l                      '\154'
   1594 #define CHAR_m                      '\155'
   1595 #define CHAR_n                      '\156'
   1596 #define CHAR_o                      '\157'
   1597 #define CHAR_p                      '\160'
   1598 #define CHAR_q                      '\161'
   1599 #define CHAR_r                      '\162'
   1600 #define CHAR_s                      '\163'
   1601 #define CHAR_t                      '\164'
   1602 #define CHAR_u                      '\165'
   1603 #define CHAR_v                      '\166'
   1604 #define CHAR_w                      '\167'
   1605 #define CHAR_x                      '\170'
   1606 #define CHAR_y                      '\171'
   1607 #define CHAR_z                      '\172'
   1608 #define CHAR_LEFT_CURLY_BRACKET     '\173'
   1609 #define CHAR_VERTICAL_LINE          '\174'
   1610 #define CHAR_RIGHT_CURLY_BRACKET    '\175'
   1611 #define CHAR_TILDE                  '\176'
   1612 #define CHAR_NBSP                   ((unsigned char)'\xa0')
   1613 
   1614 #define STR_HT                      "\011"
   1615 #define STR_VT                      "\013"
   1616 #define STR_FF                      "\014"
   1617 #define STR_CR                      "\015"
   1618 #define STR_NL                      "\012"
   1619 #define STR_BS                      "\010"
   1620 #define STR_BEL                     "\007"
   1621 #define STR_ESC                     "\033"
   1622 #define STR_DEL                     "\177"
   1623 
   1624 #define STR_SPACE                   "\040"
   1625 #define STR_EXCLAMATION_MARK        "\041"
   1626 #define STR_QUOTATION_MARK          "\042"
   1627 #define STR_NUMBER_SIGN             "\043"
   1628 #define STR_DOLLAR_SIGN             "\044"
   1629 #define STR_PERCENT_SIGN            "\045"
   1630 #define STR_AMPERSAND               "\046"
   1631 #define STR_APOSTROPHE              "\047"
   1632 #define STR_LEFT_PARENTHESIS        "\050"
   1633 #define STR_RIGHT_PARENTHESIS       "\051"
   1634 #define STR_ASTERISK                "\052"
   1635 #define STR_PLUS                    "\053"
   1636 #define STR_COMMA                   "\054"
   1637 #define STR_MINUS                   "\055"
   1638 #define STR_DOT                     "\056"
   1639 #define STR_SLASH                   "\057"
   1640 #define STR_0                       "\060"
   1641 #define STR_1                       "\061"
   1642 #define STR_2                       "\062"
   1643 #define STR_3                       "\063"
   1644 #define STR_4                       "\064"
   1645 #define STR_5                       "\065"
   1646 #define STR_6                       "\066"
   1647 #define STR_7                       "\067"
   1648 #define STR_8                       "\070"
   1649 #define STR_9                       "\071"
   1650 #define STR_COLON                   "\072"
   1651 #define STR_SEMICOLON               "\073"
   1652 #define STR_LESS_THAN_SIGN          "\074"
   1653 #define STR_EQUALS_SIGN             "\075"
   1654 #define STR_GREATER_THAN_SIGN       "\076"
   1655 #define STR_QUESTION_MARK           "\077"
   1656 #define STR_COMMERCIAL_AT           "\100"
   1657 #define STR_A                       "\101"
   1658 #define STR_B                       "\102"
   1659 #define STR_C                       "\103"
   1660 #define STR_D                       "\104"
   1661 #define STR_E                       "\105"
   1662 #define STR_F                       "\106"
   1663 #define STR_G                       "\107"
   1664 #define STR_H                       "\110"
   1665 #define STR_I                       "\111"
   1666 #define STR_J                       "\112"
   1667 #define STR_K                       "\113"
   1668 #define STR_L                       "\114"
   1669 #define STR_M                       "\115"
   1670 #define STR_N                       "\116"
   1671 #define STR_O                       "\117"
   1672 #define STR_P                       "\120"
   1673 #define STR_Q                       "\121"
   1674 #define STR_R                       "\122"
   1675 #define STR_S                       "\123"
   1676 #define STR_T                       "\124"
   1677 #define STR_U                       "\125"
   1678 #define STR_V                       "\126"
   1679 #define STR_W                       "\127"
   1680 #define STR_X                       "\130"
   1681 #define STR_Y                       "\131"
   1682 #define STR_Z                       "\132"
   1683 #define STR_LEFT_SQUARE_BRACKET     "\133"
   1684 #define STR_BACKSLASH               "\134"
   1685 #define STR_RIGHT_SQUARE_BRACKET    "\135"
   1686 #define STR_CIRCUMFLEX_ACCENT       "\136"
   1687 #define STR_UNDERSCORE              "\137"
   1688 #define STR_GRAVE_ACCENT            "\140"
   1689 #define STR_a                       "\141"
   1690 #define STR_b                       "\142"
   1691 #define STR_c                       "\143"
   1692 #define STR_d                       "\144"
   1693 #define STR_e                       "\145"
   1694 #define STR_f                       "\146"
   1695 #define STR_g                       "\147"
   1696 #define STR_h                       "\150"
   1697 #define STR_i                       "\151"
   1698 #define STR_j                       "\152"
   1699 #define STR_k                       "\153"
   1700 #define STR_l                       "\154"
   1701 #define STR_m                       "\155"
   1702 #define STR_n                       "\156"
   1703 #define STR_o                       "\157"
   1704 #define STR_p                       "\160"
   1705 #define STR_q                       "\161"
   1706 #define STR_r                       "\162"
   1707 #define STR_s                       "\163"
   1708 #define STR_t                       "\164"
   1709 #define STR_u                       "\165"
   1710 #define STR_v                       "\166"
   1711 #define STR_w                       "\167"
   1712 #define STR_x                       "\170"
   1713 #define STR_y                       "\171"
   1714 #define STR_z                       "\172"
   1715 #define STR_LEFT_CURLY_BRACKET      "\173"
   1716 #define STR_VERTICAL_LINE           "\174"
   1717 #define STR_RIGHT_CURLY_BRACKET     "\175"
   1718 #define STR_TILDE                   "\176"
   1719 
   1720 #define STRING_ACCEPT0              STR_A STR_C STR_C STR_E STR_P STR_T "\0"
   1721 #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"
   1722 #define STRING_F0                   STR_F "\0"
   1723 #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"
   1724 #define STRING_MARK0                STR_M STR_A STR_R STR_K "\0"
   1725 #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"
   1726 #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"
   1727 #define STRING_THEN                 STR_T STR_H STR_E STR_N
   1728 
   1729 #define STRING_alpha0               STR_a STR_l STR_p STR_h STR_a "\0"
   1730 #define STRING_lower0               STR_l STR_o STR_w STR_e STR_r "\0"
   1731 #define STRING_upper0               STR_u STR_p STR_p STR_e STR_r "\0"
   1732 #define STRING_alnum0               STR_a STR_l STR_n STR_u STR_m "\0"
   1733 #define STRING_ascii0               STR_a STR_s STR_c STR_i STR_i "\0"
   1734 #define STRING_blank0               STR_b STR_l STR_a STR_n STR_k "\0"
   1735 #define STRING_cntrl0               STR_c STR_n STR_t STR_r STR_l "\0"
   1736 #define STRING_digit0               STR_d STR_i STR_g STR_i STR_t "\0"
   1737 #define STRING_graph0               STR_g STR_r STR_a STR_p STR_h "\0"
   1738 #define STRING_print0               STR_p STR_r STR_i STR_n STR_t "\0"
   1739 #define STRING_punct0               STR_p STR_u STR_n STR_c STR_t "\0"
   1740 #define STRING_space0               STR_s STR_p STR_a STR_c STR_e "\0"
   1741 #define STRING_word0                STR_w STR_o STR_r STR_d       "\0"
   1742 #define STRING_xdigit               STR_x STR_d STR_i STR_g STR_i STR_t
   1743 
   1744 #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E
   1745 #define STRING_WEIRD_STARTWORD      STR_LEFT_SQUARE_BRACKET STR_COLON STR_LESS_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
   1746 #define STRING_WEIRD_ENDWORD        STR_LEFT_SQUARE_BRACKET STR_COLON STR_GREATER_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
   1747 
   1748 #define STRING_CR_RIGHTPAR              STR_C STR_R STR_RIGHT_PARENTHESIS
   1749 #define STRING_LF_RIGHTPAR              STR_L STR_F STR_RIGHT_PARENTHESIS
   1750 #define STRING_CRLF_RIGHTPAR            STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
   1751 #define STRING_ANY_RIGHTPAR             STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
   1752 #define STRING_ANYCRLF_RIGHTPAR         STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
   1753 #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
   1754 #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
   1755 #define STRING_UTF8_RIGHTPAR            STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
   1756 #define STRING_UTF16_RIGHTPAR           STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
   1757 #define STRING_UTF32_RIGHTPAR           STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
   1758 #define STRING_UTF_RIGHTPAR             STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
   1759 #define STRING_UCP_RIGHTPAR             STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
   1760 #define STRING_NO_AUTO_POSSESS_RIGHTPAR STR_N STR_O STR_UNDERSCORE STR_A STR_U STR_T STR_O STR_UNDERSCORE STR_P STR_O STR_S STR_S STR_E STR_S STR_S STR_RIGHT_PARENTHESIS
   1761 #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
   1762 #define STRING_LIMIT_MATCH_EQ           STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_M STR_A STR_T STR_C STR_H STR_EQUALS_SIGN
   1763 #define STRING_LIMIT_RECURSION_EQ       STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_R STR_E STR_C STR_U STR_R STR_S STR_I STR_O STR_N STR_EQUALS_SIGN
   1764 
   1765 #endif  /* SUPPORT_UTF */
   1766 
   1767 /* Escape items that are just an encoding of a particular data value. */
   1768 
   1769 #ifndef ESC_a
   1770 #define ESC_a CHAR_BEL
   1771 #endif
   1772 
   1773 #ifndef ESC_e
   1774 #define ESC_e CHAR_ESC
   1775 #endif
   1776 
   1777 #ifndef ESC_f
   1778 #define ESC_f CHAR_FF
   1779 #endif
   1780 
   1781 #ifndef ESC_n
   1782 #define ESC_n CHAR_LF
   1783 #endif
   1784 
   1785 #ifndef ESC_r
   1786 #define ESC_r CHAR_CR
   1787 #endif
   1788 
   1789 /* We can't officially use ESC_t because it is a POSIX reserved identifier
   1790 (presumably because of all the others like size_t). */
   1791 
   1792 #ifndef ESC_tee
   1793 #define ESC_tee CHAR_HT
   1794 #endif
   1795 
   1796 /* Codes for different types of Unicode property */
   1797 
   1798 #define PT_ANY        0    /* Any property - matches all chars */
   1799 #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */
   1800 #define PT_GC         2    /* Specified general characteristic (e.g. L) */
   1801 #define PT_PC         3    /* Specified particular characteristic (e.g. Lu) */
   1802 #define PT_SC         4    /* Script (e.g. Han) */
   1803 #define PT_ALNUM      5    /* Alphanumeric - the union of L and N */
   1804 #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
   1805 #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
   1806 #define PT_WORD       8    /* Word - L plus N plus underscore */
   1807 #define PT_CLIST      9    /* Pseudo-property: match character list */
   1808 #define PT_UCNC      10    /* Universal Character nameable character */
   1809 #define PT_TABSIZE   11    /* Size of square table for autopossessify tests */
   1810 
   1811 /* The following special properties are used only in XCLASS items, when POSIX
   1812 classes are specified and PCRE_UCP is set - in other words, for Unicode
   1813 handling of these classes. They are not available via the \p or \P escapes like
   1814 those in the above list, and so they do not take part in the autopossessifying
   1815 table. */
   1816 
   1817 #define PT_PXGRAPH   11    /* [:graph:] - characters that mark the paper */
   1818 #define PT_PXPRINT   12    /* [:print:] - [:graph:] plus non-control spaces */
   1819 #define PT_PXPUNCT   13    /* [:punct:] - punctuation characters */
   1820 
   1821 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
   1822 contain characters with values greater than 255. */
   1823 
   1824 #define XCL_NOT       0x01    /* Flag: this is a negative class */
   1825 #define XCL_MAP       0x02    /* Flag: a 32-byte map is present */
   1826 #define XCL_HASPROP   0x04    /* Flag: property checks are present. */
   1827 
   1828 #define XCL_END       0    /* Marks end of individual items */
   1829 #define XCL_SINGLE    1    /* Single item (one multibyte char) follows */
   1830 #define XCL_RANGE     2    /* A range (two multibyte chars) follows */
   1831 #define XCL_PROP      3    /* Unicode property (2-byte property code follows) */
   1832 #define XCL_NOTPROP   4    /* Unicode inverted property (ditto) */
   1833 
   1834 /* These are escaped items that aren't just an encoding of a particular data
   1835 value such as \n. They must have non-zero values, as check_escape() returns 0
   1836 for a data character.  Also, they must appear in the same order as in the
   1837 opcode definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
   1838 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
   1839 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
   1840 non-DOTALL mode, "." behaves like \N.
   1841 
   1842 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
   1843 when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
   1844 They must be contiguous, and remain in order so that the replacements can be
   1845 looked up from a table.
   1846 
   1847 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
   1848 check_escape(). There are two tests in the code for an escape
   1849 greater than ESC_b and less than ESC_Z to detect the types that may be
   1850 repeated. These are the types that consume characters. If any new escapes are
   1851 put in between that don't consume a character, that code will have to change.
   1852 */
   1853 
   1854 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
   1855        ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
   1856        ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
   1857        ESC_E, ESC_Q, ESC_g, ESC_k,
   1858        ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
   1859 
   1860 
   1861 /********************** Opcode definitions ******************/
   1862 
   1863 /****** NOTE NOTE NOTE ******
   1864 
   1865 Starting from 1 (i.e. after OP_END), the values up to OP_EOD must correspond in
   1866 order to the list of escapes immediately above. Furthermore, values up to
   1867 OP_DOLLM must not be changed without adjusting the table called autoposstab in
   1868 pcre_compile.c
   1869 
   1870 Whenever this list is updated, the two macro definitions that follow must be
   1871 updated to match. The possessification table called "opcode_possessify" in
   1872 pcre_compile.c must also be updated, and also the tables called "coptable"
   1873 and "poptable" in pcre_dfa_exec.c.
   1874 
   1875 ****** NOTE NOTE NOTE ******/
   1876 
   1877 
   1878 /* The values between FIRST_AUTOTAB_OP and LAST_AUTOTAB_RIGHT_OP, inclusive,
   1879 are used in a table for deciding whether a repeated character type can be
   1880 auto-possessified. */
   1881 
   1882 #define FIRST_AUTOTAB_OP       OP_NOT_DIGIT
   1883 #define LAST_AUTOTAB_LEFT_OP   OP_EXTUNI
   1884 #define LAST_AUTOTAB_RIGHT_OP  OP_DOLLM
   1885 
   1886 enum {
   1887   OP_END,            /* 0 End of pattern */
   1888 
   1889   /* Values corresponding to backslashed metacharacters */
   1890 
   1891   OP_SOD,            /* 1 Start of data: \A */
   1892   OP_SOM,            /* 2 Start of match (subject + offset): \G */
   1893   OP_SET_SOM,        /* 3 Set start of match (\K) */
   1894   OP_NOT_WORD_BOUNDARY,  /*  4 \B */
   1895   OP_WORD_BOUNDARY,      /*  5 \b */
   1896   OP_NOT_DIGIT,          /*  6 \D */
   1897   OP_DIGIT,              /*  7 \d */
   1898   OP_NOT_WHITESPACE,     /*  8 \S */
   1899   OP_WHITESPACE,         /*  9 \s */
   1900   OP_NOT_WORDCHAR,       /* 10 \W */
   1901   OP_WORDCHAR,           /* 11 \w */
   1902 
   1903   OP_ANY,            /* 12 Match any character except newline (\N) */
   1904   OP_ALLANY,         /* 13 Match any character */
   1905   OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
   1906   OP_NOTPROP,        /* 15 \P (not Unicode property) */
   1907   OP_PROP,           /* 16 \p (Unicode property) */
   1908   OP_ANYNL,          /* 17 \R (any newline sequence) */
   1909   OP_NOT_HSPACE,     /* 18 \H (not horizontal whitespace) */
   1910   OP_HSPACE,         /* 19 \h (horizontal whitespace) */
   1911   OP_NOT_VSPACE,     /* 20 \V (not vertical whitespace) */
   1912   OP_VSPACE,         /* 21 \v (vertical whitespace) */
   1913   OP_EXTUNI,         /* 22 \X (extended Unicode sequence */
   1914   OP_EODN,           /* 23 End of data or \n at end of data (\Z) */
   1915   OP_EOD,            /* 24 End of data (\z) */
   1916 
   1917   /* Line end assertions */
   1918 
   1919   OP_DOLL,           /* 25 End of line - not multiline */
   1920   OP_DOLLM,          /* 26 End of line - multiline */
   1921   OP_CIRC,           /* 27 Start of line - not multiline */
   1922   OP_CIRCM,          /* 28 Start of line - multiline */
   1923 
   1924   /* Single characters; caseful must precede the caseless ones */
   1925 
   1926   OP_CHAR,           /* 29 Match one character, casefully */
   1927   OP_CHARI,          /* 30 Match one character, caselessly */
   1928   OP_NOT,            /* 31 Match one character, not the given one, casefully */
   1929   OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
   1930 
   1931   /* The following sets of 13 opcodes must always be kept in step because
   1932   the offset from the first one is used to generate the others. */
   1933 
   1934   /* Repeated characters; caseful must precede the caseless ones */
   1935 
   1936   OP_STAR,           /* 33 The maximizing and minimizing versions of */
   1937   OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
   1938   OP_PLUS,           /* 35 the minimizing one second. */
   1939   OP_MINPLUS,        /* 36 */
   1940   OP_QUERY,          /* 37 */
   1941   OP_MINQUERY,       /* 38 */
   1942 
   1943   OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
   1944   OP_MINUPTO,        /* 40 */
   1945   OP_EXACT,          /* 41 Exactly n matches */
   1946 
   1947   OP_POSSTAR,        /* 42 Possessified star, caseful */
   1948   OP_POSPLUS,        /* 43 Possessified plus, caseful */
   1949   OP_POSQUERY,       /* 44 Posesssified query, caseful */
   1950   OP_POSUPTO,        /* 45 Possessified upto, caseful */
   1951 
   1952   /* Repeated characters; caseless must follow the caseful ones */
   1953 
   1954   OP_STARI,          /* 46 */
   1955   OP_MINSTARI,       /* 47 */
   1956   OP_PLUSI,          /* 48 */
   1957   OP_MINPLUSI,       /* 49 */
   1958   OP_QUERYI,         /* 50 */
   1959   OP_MINQUERYI,      /* 51 */
   1960 
   1961   OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
   1962   OP_MINUPTOI,       /* 53 */
   1963   OP_EXACTI,         /* 54 */
   1964 
   1965   OP_POSSTARI,       /* 55 Possessified star, caseless */
   1966   OP_POSPLUSI,       /* 56 Possessified plus, caseless */
   1967   OP_POSQUERYI,      /* 57 Posesssified query, caseless */
   1968   OP_POSUPTOI,       /* 58 Possessified upto, caseless */
   1969 
   1970   /* The negated ones must follow the non-negated ones, and match them */
   1971   /* Negated repeated character, caseful; must precede the caseless ones */
   1972 
   1973   OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
   1974   OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
   1975   OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
   1976   OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
   1977   OP_NOTQUERY,       /* 63 */
   1978   OP_NOTMINQUERY,    /* 64 */
   1979 
   1980   OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
   1981   OP_NOTMINUPTO,     /* 66 */
   1982   OP_NOTEXACT,       /* 67 Exactly n matches */
   1983 
   1984   OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
   1985   OP_NOTPOSPLUS,     /* 69 */
   1986   OP_NOTPOSQUERY,    /* 70 */
   1987   OP_NOTPOSUPTO,     /* 71 */
   1988 
   1989   /* Negated repeated character, caseless; must follow the caseful ones */
   1990 
   1991   OP_NOTSTARI,       /* 72 */
   1992   OP_NOTMINSTARI,    /* 73 */
   1993   OP_NOTPLUSI,       /* 74 */
   1994   OP_NOTMINPLUSI,    /* 75 */
   1995   OP_NOTQUERYI,      /* 76 */
   1996   OP_NOTMINQUERYI,   /* 77 */
   1997 
   1998   OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
   1999   OP_NOTMINUPTOI,    /* 79 */
   2000   OP_NOTEXACTI,      /* 80 Exactly n matches */
   2001 
   2002   OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
   2003   OP_NOTPOSPLUSI,    /* 82 */
   2004   OP_NOTPOSQUERYI,   /* 83 */
   2005   OP_NOTPOSUPTOI,    /* 84 */
   2006 
   2007   /* Character types */
   2008 
   2009   OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
   2010   OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
   2011   OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
   2012   OP_TYPEMINPLUS,    /* 88 be in exactly the same order as those above. */
   2013   OP_TYPEQUERY,      /* 89 */
   2014   OP_TYPEMINQUERY,   /* 90 */
   2015 
   2016   OP_TYPEUPTO,       /* 91 From 0 to n matches */
   2017   OP_TYPEMINUPTO,    /* 92 */
   2018   OP_TYPEEXACT,      /* 93 Exactly n matches */
   2019 
   2020   OP_TYPEPOSSTAR,    /* 94 Possessified versions */
   2021   OP_TYPEPOSPLUS,    /* 95 */
   2022   OP_TYPEPOSQUERY,   /* 96 */
   2023   OP_TYPEPOSUPTO,    /* 97 */
   2024 
   2025   /* These are used for character classes and back references; only the
   2026   first six are the same as the sets above. */
   2027 
   2028   OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
   2029   OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
   2030   OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
   2031   OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
   2032   OP_CRQUERY,        /* 102 */
   2033   OP_CRMINQUERY,     /* 103 */
   2034 
   2035   OP_CRRANGE,        /* 104 These are different to the three sets above. */
   2036   OP_CRMINRANGE,     /* 105 */
   2037 
   2038   OP_CRPOSSTAR,      /* 106 Possessified versions */
   2039   OP_CRPOSPLUS,      /* 107 */
   2040   OP_CRPOSQUERY,     /* 108 */
   2041   OP_CRPOSRANGE,     /* 109 */
   2042 
   2043   /* End of quantifier opcodes */
   2044 
   2045   OP_CLASS,          /* 110 Match a character class, chars < 256 only */
   2046   OP_NCLASS,         /* 111 Same, but the bitmap was created from a negative
   2047                               class - the difference is relevant only when a
   2048                               character > 255 is encountered. */
   2049   OP_XCLASS,         /* 112 Extended class for handling > 255 chars within the
   2050                               class. This does both positive and negative. */
   2051   OP_REF,            /* 113 Match a back reference, casefully */
   2052   OP_REFI,           /* 114 Match a back reference, caselessly */
   2053   OP_DNREF,          /* 115 Match a duplicate name backref, casefully */
   2054   OP_DNREFI,         /* 116 Match a duplicate name backref, caselessly */
   2055   OP_RECURSE,        /* 117 Match a numbered subpattern (possibly recursive) */
   2056   OP_CALLOUT,        /* 118 Call out to external function if provided */
   2057 
   2058   OP_ALT,            /* 119 Start of alternation */
   2059   OP_KET,            /* 120 End of group that doesn't have an unbounded repeat */
   2060   OP_KETRMAX,        /* 121 These two must remain together and in this */
   2061   OP_KETRMIN,        /* 122 order. They are for groups the repeat for ever. */
   2062   OP_KETRPOS,        /* 123 Possessive unlimited repeat. */
   2063 
   2064   /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
   2065   asserts must remain in order. */
   2066 
   2067   OP_REVERSE,        /* 124 Move pointer back - used in lookbehind assertions */
   2068   OP_ASSERT,         /* 125 Positive lookahead */
   2069   OP_ASSERT_NOT,     /* 126 Negative lookahead */
   2070   OP_ASSERTBACK,     /* 127 Positive lookbehind */
   2071   OP_ASSERTBACK_NOT, /* 128 Negative lookbehind */
   2072 
   2073   /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
   2074   after the assertions, with ONCE first, as there's a test for >= ONCE for a
   2075   subpattern that isn't an assertion. The POS versions must immediately follow
   2076   the non-POS versions in each case. */
   2077 
   2078   OP_ONCE,           /* 129 Atomic group, contains captures */
   2079   OP_ONCE_NC,        /* 130 Atomic group containing no captures */
   2080   OP_BRA,            /* 131 Start of non-capturing bracket */
   2081   OP_BRAPOS,         /* 132 Ditto, with unlimited, possessive repeat */
   2082   OP_CBRA,           /* 133 Start of capturing bracket */
   2083   OP_CBRAPOS,        /* 134 Ditto, with unlimited, possessive repeat */
   2084   OP_COND,           /* 135 Conditional group */
   2085 
   2086   /* These five must follow the previous five, in the same order. There's a
   2087   check for >= SBRA to distinguish the two sets. */
   2088 
   2089   OP_SBRA,           /* 136 Start of non-capturing bracket, check empty  */
   2090   OP_SBRAPOS,        /* 137 Ditto, with unlimited, possessive repeat */
   2091   OP_SCBRA,          /* 138 Start of capturing bracket, check empty */
   2092   OP_SCBRAPOS,       /* 139 Ditto, with unlimited, possessive repeat */
   2093   OP_SCOND,          /* 140 Conditional group, check empty */
   2094 
   2095   /* The next two pairs must (respectively) be kept together. */
   2096 
   2097   OP_CREF,           /* 141 Used to hold a capture number as condition */
   2098   OP_DNCREF,         /* 142 Used to point to duplicate names as a condition */
   2099   OP_RREF,           /* 143 Used to hold a recursion number as condition */
   2100   OP_DNRREF,         /* 144 Used to point to duplicate names as a condition */
   2101   OP_DEF,            /* 145 The DEFINE condition */
   2102 
   2103   OP_BRAZERO,        /* 146 These two must remain together and in this */
   2104   OP_BRAMINZERO,     /* 147 order. */
   2105   OP_BRAPOSZERO,     /* 148 */
   2106 
   2107   /* These are backtracking control verbs */
   2108 
   2109   OP_MARK,           /* 149 always has an argument */
   2110   OP_PRUNE,          /* 150 */
   2111   OP_PRUNE_ARG,      /* 151 same, but with argument */
   2112   OP_SKIP,           /* 152 */
   2113   OP_SKIP_ARG,       /* 153 same, but with argument */
   2114   OP_THEN,           /* 154 */
   2115   OP_THEN_ARG,       /* 155 same, but with argument */
   2116   OP_COMMIT,         /* 156 */
   2117 
   2118   /* These are forced failure and success verbs */
   2119 
   2120   OP_FAIL,           /* 157 */
   2121   OP_ACCEPT,         /* 158 */
   2122   OP_ASSERT_ACCEPT,  /* 159 Used inside assertions */
   2123   OP_CLOSE,          /* 160 Used before OP_ACCEPT to close open captures */
   2124 
   2125   /* This is used to skip a subpattern with a {0} quantifier */
   2126 
   2127   OP_SKIPZERO,       /* 161 */
   2128 
   2129   /* This is not an opcode, but is used to check that tables indexed by opcode
   2130   are the correct length, in order to catch updating errors - there have been
   2131   some in the past. */
   2132 
   2133   OP_TABLE_LENGTH
   2134 };
   2135 
   2136 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
   2137 definitions that follow must also be updated to match. There are also tables
   2138 called "opcode_possessify" in pcre_compile.c and "coptable" and "poptable" in
   2139 pcre_dfa_exec.c that must be updated. */
   2140 
   2141 
   2142 /* This macro defines textual names for all the opcodes. These are used only
   2143 for debugging, and some of them are only partial names. The macro is referenced
   2144 only in pcre_printint.c, which fills out the full names in many cases (and in
   2145 some cases doesn't actually use these names at all). */
   2146 
   2147 #define OP_NAME_LIST \
   2148   "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
   2149   "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
   2150   "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
   2151   "extuni",  "\\Z", "\\z",                                        \
   2152   "$", "$", "^", "^", "char", "chari", "not", "noti",             \
   2153   "*", "*?", "+", "+?", "?", "??",                                \
   2154   "{", "{", "{",                                                  \
   2155   "*+","++", "?+", "{",                                           \
   2156   "*", "*?", "+", "+?", "?", "??",                                \
   2157   "{", "{", "{",                                                  \
   2158   "*+","++", "?+", "{",                                           \
   2159   "*", "*?", "+", "+?", "?", "??",                                \
   2160   "{", "{", "{",                                                  \
   2161   "*+","++", "?+", "{",                                           \
   2162   "*", "*?", "+", "+?", "?", "??",                                \
   2163   "{", "{", "{",                                                  \
   2164   "*+","++", "?+", "{",                                           \
   2165   "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
   2166   "*+","++", "?+", "{",                                           \
   2167   "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
   2168   "*+","++", "?+", "{",                                           \
   2169   "class", "nclass", "xclass", "Ref", "Refi", "DnRef", "DnRefi",  \
   2170   "Recurse", "Callout",                                           \
   2171   "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
   2172   "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \
   2173   "Once", "Once_NC",                                              \
   2174   "Bra", "BraPos", "CBra", "CBraPos",                             \
   2175   "Cond",                                                         \
   2176   "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
   2177   "SCond",                                                        \
   2178   "Cond ref", "Cond dnref", "Cond rec", "Cond dnrec", "Cond def", \
   2179   "Brazero", "Braminzero", "Braposzero",                          \
   2180   "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
   2181   "*THEN", "*THEN", "*COMMIT", "*FAIL",                           \
   2182   "*ACCEPT", "*ASSERT_ACCEPT",                                    \
   2183   "Close", "Skip zero"
   2184 
   2185 
   2186 /* This macro defines the length of fixed length operations in the compiled
   2187 regex. The lengths are used when searching for specific things, and also in the
   2188 debugging printing of a compiled regex. We use a macro so that it can be
   2189 defined close to the definitions of the opcodes themselves.
   2190 
   2191 As things have been extended, some of these are no longer fixed lenths, but are
   2192 minima instead. For example, the length of a single-character repeat may vary
   2193 in UTF-8 mode. The code that uses this table must know about such things. */
   2194 
   2195 #define OP_LENGTHS \
   2196   1,                             /* End                                    */ \
   2197   1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
   2198   1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
   2199   1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
   2200   3, 3,                          /* \P, \p                                 */ \
   2201   1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
   2202   1,                             /* \X                                     */ \
   2203   1, 1, 1, 1, 1, 1,              /* \Z, \z, $, $M ^, ^M                    */ \
   2204   2,                             /* Char  - the minimum length             */ \
   2205   2,                             /* Chari  - the minimum length            */ \
   2206   2,                             /* not                                    */ \
   2207   2,                             /* noti                                   */ \
   2208   /* Positive single-char repeats                             ** These are */ \
   2209   2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
   2210   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto, minupto             ** mode      */ \
   2211   2+IMM2_SIZE,                   /* exact                                  */ \
   2212   2, 2, 2, 2+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */ \
   2213   2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
   2214   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto I, minupto I                      */ \
   2215   2+IMM2_SIZE,                   /* exact I                                */ \
   2216   2, 2, 2, 2+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */ \
   2217   /* Negative single-char repeats - only for chars < 256                   */ \
   2218   2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
   2219   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto, minupto                      */ \
   2220   2+IMM2_SIZE,                   /* NOT exact                              */ \
   2221   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *, +, ?, upto           */ \
   2222   2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
   2223   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto I, minupto I                  */ \
   2224   2+IMM2_SIZE,                   /* NOT exact I                            */ \
   2225   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *I, +I, ?I, upto I      */ \
   2226   /* Positive type repeats                                                 */ \
   2227   2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
   2228   2+IMM2_SIZE, 2+IMM2_SIZE,      /* Type upto, minupto                     */ \
   2229   2+IMM2_SIZE,                   /* Type exact                             */ \
   2230   2, 2, 2, 2+IMM2_SIZE,          /* Possessive *+, ++, ?+, upto+           */ \
   2231   /* Character class & ref repeats                                         */ \
   2232   1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
   2233   1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
   2234   1, 1, 1, 1+2*IMM2_SIZE,        /* Possessive *+, ++, ?+, CRPOSRANGE      */ \
   2235   1+(32/sizeof(pcre_uchar)),     /* CLASS                                  */ \
   2236   1+(32/sizeof(pcre_uchar)),     /* NCLASS                                 */ \
   2237   0,                             /* XCLASS - variable length               */ \
   2238   1+IMM2_SIZE,                   /* REF                                    */ \
   2239   1+IMM2_SIZE,                   /* REFI                                   */ \
   2240   1+2*IMM2_SIZE,                 /* DNREF                                  */ \
   2241   1+2*IMM2_SIZE,                 /* DNREFI                                 */ \
   2242   1+LINK_SIZE,                   /* RECURSE                                */ \
   2243   2+2*LINK_SIZE,                 /* CALLOUT                                */ \
   2244   1+LINK_SIZE,                   /* Alt                                    */ \
   2245   1+LINK_SIZE,                   /* Ket                                    */ \
   2246   1+LINK_SIZE,                   /* KetRmax                                */ \
   2247   1+LINK_SIZE,                   /* KetRmin                                */ \
   2248   1+LINK_SIZE,                   /* KetRpos                                */ \
   2249   1+LINK_SIZE,                   /* Reverse                                */ \
   2250   1+LINK_SIZE,                   /* Assert                                 */ \
   2251   1+LINK_SIZE,                   /* Assert not                             */ \
   2252   1+LINK_SIZE,                   /* Assert behind                          */ \
   2253   1+LINK_SIZE,                   /* Assert behind not                      */ \
   2254   1+LINK_SIZE,                   /* ONCE                                   */ \
   2255   1+LINK_SIZE,                   /* ONCE_NC                                */ \
   2256   1+LINK_SIZE,                   /* BRA                                    */ \
   2257   1+LINK_SIZE,                   /* BRAPOS                                 */ \
   2258   1+LINK_SIZE+IMM2_SIZE,         /* CBRA                                   */ \
   2259   1+LINK_SIZE+IMM2_SIZE,         /* CBRAPOS                                */ \
   2260   1+LINK_SIZE,                   /* COND                                   */ \
   2261   1+LINK_SIZE,                   /* SBRA                                   */ \
   2262   1+LINK_SIZE,                   /* SBRAPOS                                */ \
   2263   1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
   2264   1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
   2265   1+LINK_SIZE,                   /* SCOND                                  */ \
   2266   1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* CREF, DNCREF                           */ \
   2267   1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* RREF, DNRREF                           */ \
   2268   1,                             /* DEF                                    */ \
   2269   1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
   2270   3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
   2271   1, 3,                          /* SKIP, SKIP_ARG                         */ \
   2272   1, 3,                          /* THEN, THEN_ARG                         */ \
   2273   1, 1, 1, 1,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */ \
   2274   1+IMM2_SIZE, 1                 /* CLOSE, SKIPZERO                        */
   2275 
   2276 /* A magic value for OP_RREF to indicate the "any recursion" condition. */
   2277 
   2278 #define RREF_ANY  0xffff
   2279 
   2280 /* Compile time error code numbers. They are given names so that they can more
   2281 easily be tracked. When a new number is added, the table called eint in
   2282 pcreposix.c must be updated. */
   2283 
   2284 enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,
   2285        ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
   2286        ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
   2287        ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
   2288        ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
   2289        ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
   2290        ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
   2291        ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERR78, ERR79,
   2292        ERR80, ERR81, ERR82, ERR83, ERR84, ERR85, ERR86, ERRCOUNT };
   2293 
   2294 /* JIT compiling modes. The function list is indexed by them. */
   2295 
   2296 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
   2297        JIT_NUMBER_OF_COMPILE_MODES };
   2298 
   2299 /* The real format of the start of the pcre block; the index of names and the
   2300 code vector run on as long as necessary after the end. We store an explicit
   2301 offset to the name table so that if a regex is compiled on one host, saved, and
   2302 then run on another where the size of pointers is different, all might still
   2303 be well.
   2304 
   2305 The size of the structure must be a multiple of 8 bytes. For the case of
   2306 compiled-on-4 and run-on-8, we include an extra pointer that is always NULL so
   2307 that there are an even number of pointers which therefore are a multiple of 8
   2308 bytes.
   2309 
   2310 It is necessary to fork the struct for the 32 bit library, since it needs to
   2311 use pcre_uint32 for first_char and req_char. We can't put an ifdef inside the
   2312 typedef because pcretest needs access to the struct of the 8-, 16- and 32-bit
   2313 variants.
   2314 
   2315 *** WARNING ***
   2316 When new fields are added to these structures, remember to adjust the code in
   2317 pcre_byte_order.c that is concerned with swapping the byte order of the fields
   2318 when a compiled regex is reloaded on a host with different endianness.
   2319 *** WARNING ***
   2320 There is also similar byte-flipping code in pcretest.c, which is used for
   2321 testing the byte-flipping features. It must also be kept in step.
   2322 *** WARNING ***
   2323 */
   2324 
   2325 typedef struct real_pcre8_or_16 {
   2326   pcre_uint32 magic_number;
   2327   pcre_uint32 size;               /* Total that was malloced */
   2328   pcre_uint32 options;            /* Public options */
   2329   pcre_uint32 flags;              /* Private flags */
   2330   pcre_uint32 limit_match;        /* Limit set from regex */
   2331   pcre_uint32 limit_recursion;    /* Limit set from regex */
   2332   pcre_uint16 first_char;         /* Starting character */
   2333   pcre_uint16 req_char;           /* This character must be seen */
   2334   pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
   2335   pcre_uint16 top_bracket;        /* Highest numbered group */
   2336   pcre_uint16 top_backref;        /* Highest numbered back reference */
   2337   pcre_uint16 name_table_offset;  /* Offset to name table that follows */
   2338   pcre_uint16 name_entry_size;    /* Size of any name items */
   2339   pcre_uint16 name_count;         /* Number of name items */
   2340   pcre_uint16 ref_count;          /* Reference count */
   2341   pcre_uint16 dummy1;             /* To ensure size is a multiple of 8 */
   2342   pcre_uint16 dummy2;             /* To ensure size is a multiple of 8 */
   2343   pcre_uint16 dummy3;             /* To ensure size is a multiple of 8 */
   2344   const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
   2345   void             *nullpad;      /* NULL padding */
   2346 } real_pcre8_or_16;
   2347 
   2348 typedef struct real_pcre8_or_16 real_pcre;
   2349 typedef struct real_pcre8_or_16 real_pcre16;
   2350 
   2351 typedef struct real_pcre32 {
   2352   pcre_uint32 magic_number;
   2353   pcre_uint32 size;               /* Total that was malloced */
   2354   pcre_uint32 options;            /* Public options */
   2355   pcre_uint32 flags;              /* Private flags */
   2356   pcre_uint32 limit_match;        /* Limit set from regex */
   2357   pcre_uint32 limit_recursion;    /* Limit set from regex */
   2358   pcre_uint32 first_char;         /* Starting character */
   2359   pcre_uint32 req_char;           /* This character must be seen */
   2360   pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
   2361   pcre_uint16 top_bracket;        /* Highest numbered group */
   2362   pcre_uint16 top_backref;        /* Highest numbered back reference */
   2363   pcre_uint16 name_table_offset;  /* Offset to name table that follows */
   2364   pcre_uint16 name_entry_size;    /* Size of any name items */
   2365   pcre_uint16 name_count;         /* Number of name items */
   2366   pcre_uint16 ref_count;          /* Reference count */
   2367   pcre_uint16 dummy;              /* To ensure size is a multiple of 8 */
   2368   const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
   2369   void             *nullpad;      /* NULL padding */
   2370 } real_pcre32;
   2371 
   2372 #if defined COMPILE_PCRE8
   2373 #define REAL_PCRE real_pcre
   2374 #elif defined COMPILE_PCRE16
   2375 #define REAL_PCRE real_pcre16
   2376 #elif defined COMPILE_PCRE32
   2377 #define REAL_PCRE real_pcre32
   2378 #endif
   2379 
   2380 /* Assert that the size of REAL_PCRE is divisible by 8 */
   2381 typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
   2382 
   2383 /* Needed in pcretest to access some fields in the real_pcre* structures
   2384  * directly. They're unified for 8/16/32 bits since the structs only differ
   2385  * after these fields; if that ever changes, need to fork those defines into
   2386  * 8/16 and 32 bit versions. */
   2387 #define REAL_PCRE_MAGIC(re)     (((REAL_PCRE*)re)->magic_number)
   2388 #define REAL_PCRE_SIZE(re)      (((REAL_PCRE*)re)->size)
   2389 #define REAL_PCRE_OPTIONS(re)   (((REAL_PCRE*)re)->options)
   2390 #define REAL_PCRE_FLAGS(re)     (((REAL_PCRE*)re)->flags)
   2391 
   2392 /* The format of the block used to store data from pcre_study(). The same
   2393 remark (see NOTE above) about extending this structure applies. */
   2394 
   2395 typedef struct pcre_study_data {
   2396   pcre_uint32 size;               /* Total that was malloced */
   2397   pcre_uint32 flags;              /* Private flags */
   2398   pcre_uint8 start_bits[32];      /* Starting char bits */
   2399   pcre_uint32 minlength;          /* Minimum subject length */
   2400 } pcre_study_data;
   2401 
   2402 /* Structure for building a chain of open capturing subpatterns during
   2403 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
   2404 encountered. This is also used to identify subpatterns that contain recursive
   2405 back references to themselves, so that they can be made atomic. */
   2406 
   2407 typedef struct open_capitem {
   2408   struct open_capitem *next;    /* Chain link */
   2409   pcre_uint16 number;           /* Capture number */
   2410   pcre_uint16 flag;             /* Set TRUE if recursive back ref */
   2411 } open_capitem;
   2412 
   2413 /* Structure for building a list of named groups during the first pass of
   2414 compiling. */
   2415 
   2416 typedef struct named_group {
   2417   const pcre_uchar  *name;          /* Points to the name in the pattern */
   2418   int                length;        /* Length of the name */
   2419   pcre_uint32        number;        /* Group number */
   2420 } named_group;
   2421 
   2422 /* Structure for passing "static" information around between the functions
   2423 doing the compiling, so that they are thread-safe. */
   2424 
   2425 typedef struct compile_data {
   2426   const pcre_uint8 *lcc;            /* Points to lower casing table */
   2427   const pcre_uint8 *fcc;            /* Points to case-flipping table */
   2428   const pcre_uint8 *cbits;          /* Points to character type table */
   2429   const pcre_uint8 *ctypes;         /* Points to table of type maps */
   2430   const pcre_uchar *start_workspace;/* The start of working space */
   2431   const pcre_uchar *start_code;     /* The start of the compiled code */
   2432   const pcre_uchar *start_pattern;  /* The start of the pattern */
   2433   const pcre_uchar *end_pattern;    /* The end of the pattern */
   2434   pcre_uchar *hwm;                  /* High watermark of workspace */
   2435   open_capitem *open_caps;          /* Chain of open capture items */
   2436   named_group *named_groups;        /* Points to vector in pre-compile */
   2437   pcre_uchar *name_table;           /* The name/number table */
   2438   int  names_found;                 /* Number of entries so far */
   2439   int  name_entry_size;             /* Size of each entry */
   2440   int  named_group_list_size;       /* Number of entries in the list */
   2441   int  workspace_size;              /* Size of workspace */
   2442   unsigned int bracount;            /* Count of capturing parens as we compile */
   2443   int  final_bracount;              /* Saved value after first pass */
   2444   int  max_lookbehind;              /* Maximum lookbehind (characters) */
   2445   int  top_backref;                 /* Maximum back reference */
   2446   unsigned int backref_map;         /* Bitmap of low back refs */
   2447   unsigned int namedrefcount;       /* Number of backreferences by name */
   2448   int  parens_depth;                /* Depth of nested parentheses */
   2449   int  assert_depth;                /* Depth of nested assertions */
   2450   pcre_uint32 external_options;     /* External (initial) options */
   2451   pcre_uint32 external_flags;       /* External flag bits to be set */
   2452   int  req_varyopt;                 /* "After variable item" flag for reqbyte */
   2453   BOOL had_accept;                  /* (*ACCEPT) encountered */
   2454   BOOL had_pruneorskip;             /* (*PRUNE) or (*SKIP) encountered */
   2455   BOOL check_lookbehind;            /* Lookbehinds need later checking */
   2456   BOOL dupnames;                    /* Duplicate names exist */
   2457   BOOL dupgroups;                   /* Duplicate groups exist: (?| found */
   2458   BOOL iscondassert;                /* Next assert is a condition */
   2459   int  nltype;                      /* Newline type */
   2460   int  nllen;                       /* Newline string length */
   2461   pcre_uchar nl[4];                 /* Newline string when fixed length */
   2462 } compile_data;
   2463 
   2464 /* Structure for maintaining a chain of pointers to the currently incomplete
   2465 branches, for testing for left recursion while compiling. */
   2466 
   2467 typedef struct branch_chain {
   2468   struct branch_chain *outer;
   2469   pcre_uchar *current_branch;
   2470 } branch_chain;
   2471 
   2472 /* Structure for mutual recursion detection. */
   2473 
   2474 typedef struct recurse_check {
   2475   struct recurse_check *prev;
   2476   const pcre_uchar *group;
   2477 } recurse_check;
   2478 
   2479 /* Structure for items in a linked list that represents an explicit recursive
   2480 call within the pattern; used by pcre_exec(). */
   2481 
   2482 typedef struct recursion_info {
   2483   struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
   2484   unsigned int group_num;         /* Number of group that was called */
   2485   int *offset_save;               /* Pointer to start of saved offsets */
   2486   int saved_max;                  /* Number of saved offsets */
   2487   int saved_capture_last;         /* Last capture number */
   2488   PCRE_PUCHAR subject_position;   /* Position at start of recursion */
   2489 } recursion_info;
   2490 
   2491 /* A similar structure for pcre_dfa_exec(). */
   2492 
   2493 typedef struct dfa_recursion_info {
   2494   struct dfa_recursion_info *prevrec;
   2495   int group_num;
   2496   PCRE_PUCHAR subject_position;
   2497 } dfa_recursion_info;
   2498 
   2499 /* Structure for building a chain of data for holding the values of the subject
   2500 pointer at the start of each subpattern, so as to detect when an empty string
   2501 has been matched by a subpattern - to break infinite loops; used by
   2502 pcre_exec(). */
   2503 
   2504 typedef struct eptrblock {
   2505   struct eptrblock *epb_prev;
   2506   PCRE_PUCHAR epb_saved_eptr;
   2507 } eptrblock;
   2508 
   2509 
   2510 /* Structure for passing "static" information around between the functions
   2511 doing traditional NFA matching, so that they are thread-safe. */
   2512 
   2513 typedef struct match_data {
   2514   unsigned long int match_call_count;      /* As it says */
   2515   unsigned long int match_limit;           /* As it says */
   2516   unsigned long int match_limit_recursion; /* As it says */
   2517   int   *offset_vector;           /* Offset vector */
   2518   int    offset_end;              /* One past the end */
   2519   int    offset_max;              /* The maximum usable for return data */
   2520   int    nltype;                  /* Newline type */
   2521   int    nllen;                   /* Newline string length */
   2522   int    name_count;              /* Number of names in name table */
   2523   int    name_entry_size;         /* Size of entry in names table */
   2524   unsigned int skip_arg_count;    /* For counting SKIP_ARGs */
   2525   unsigned int ignore_skip_arg;   /* For re-run when SKIP arg name not found */
   2526   pcre_uchar *name_table;         /* Table of names */
   2527   pcre_uchar nl[4];               /* Newline string when fixed */
   2528   const  pcre_uint8 *lcc;         /* Points to lower casing table */
   2529   const  pcre_uint8 *fcc;         /* Points to case-flipping table */
   2530   const  pcre_uint8 *ctypes;      /* Points to table of type maps */
   2531   BOOL   notbol;                  /* NOTBOL flag */
   2532   BOOL   noteol;                  /* NOTEOL flag */
   2533   BOOL   utf;                     /* UTF-8 / UTF-16 flag */
   2534   BOOL   jscript_compat;          /* JAVASCRIPT_COMPAT flag */
   2535   BOOL   use_ucp;                 /* PCRE_UCP flag */
   2536   BOOL   endonly;                 /* Dollar not before final \n */
   2537   BOOL   notempty;                /* Empty string match not wanted */
   2538   BOOL   notempty_atstart;        /* Empty string match at start not wanted */
   2539   BOOL   hitend;                  /* Hit the end of the subject at some point */
   2540   BOOL   bsr_anycrlf;             /* \R is just any CRLF, not full Unicode */
   2541   BOOL   hasthen;                 /* Pattern contains (*THEN) */
   2542   const  pcre_uchar *start_code;  /* For use when recursing */
   2543   PCRE_PUCHAR start_subject;      /* Start of the subject string */
   2544   PCRE_PUCHAR end_subject;        /* End of the subject string */
   2545   PCRE_PUCHAR start_match_ptr;    /* Start of matched string */
   2546   PCRE_PUCHAR end_match_ptr;      /* Subject position at end match */
   2547   PCRE_PUCHAR start_used_ptr;     /* Earliest consulted character */
   2548   int    partial;                 /* PARTIAL options */
   2549   int    end_offset_top;          /* Highwater mark at end of match */
   2550   pcre_int32 capture_last;        /* Most recent capture number + overflow flag */
   2551   int    start_offset;            /* The start offset value */
   2552   int    match_function_type;     /* Set for certain special calls of MATCH() */
   2553   eptrblock *eptrchain;           /* Chain of eptrblocks for tail recursions */
   2554   int    eptrn;                   /* Next free eptrblock */
   2555   recursion_info *recursive;      /* Linked list of recursion data */
   2556   void  *callout_data;            /* To pass back to callouts */
   2557   const  pcre_uchar *mark;        /* Mark pointer to pass back on success */
   2558   const  pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
   2559   const  pcre_uchar *once_target; /* Where to back up to for atomic groups */
   2560 #ifdef NO_RECURSE
   2561   void  *match_frames_base;       /* For remembering malloc'd frames */
   2562 #endif
   2563 } match_data;
   2564 
   2565 /* A similar structure is used for the same purpose by the DFA matching
   2566 functions. */
   2567 
   2568 typedef struct dfa_match_data {
   2569   const pcre_uchar *start_code;     /* Start of the compiled pattern */
   2570   const pcre_uchar *start_subject ; /* Start of the subject string */
   2571   const pcre_uchar *end_subject;    /* End of subject string */
   2572   const pcre_uchar *start_used_ptr; /* Earliest consulted character */
   2573   const pcre_uint8 *tables;         /* Character tables */
   2574   int   start_offset;               /* The start offset value */
   2575   int   moptions;                   /* Match options */
   2576   int   poptions;                   /* Pattern options */
   2577   int   nltype;                     /* Newline type */
   2578   int   nllen;                      /* Newline string length */
   2579   pcre_uchar nl[4];                 /* Newline string when fixed */
   2580   void *callout_data;               /* To pass back to callouts */
   2581   dfa_recursion_info *recursive;    /* Linked list of recursion data */
   2582 } dfa_match_data;
   2583 
   2584 /* Bit definitions for entries in the pcre_ctypes table. */
   2585 
   2586 #define ctype_space   0x01
   2587 #define ctype_letter  0x02
   2588 #define ctype_digit   0x04
   2589 #define ctype_xdigit  0x08
   2590 #define ctype_word    0x10   /* alphanumeric or '_' */
   2591 #define ctype_meta    0x80   /* regexp meta char or zero (end pattern) */
   2592 
   2593 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
   2594 of bits for a class map. Some classes are built by combining these tables. */
   2595 
   2596 #define cbit_space     0      /* [:space:] or \s */
   2597 #define cbit_xdigit   32      /* [:xdigit:] */
   2598 #define cbit_digit    64      /* [:digit:] or \d */
   2599 #define cbit_upper    96      /* [:upper:] */
   2600 #define cbit_lower   128      /* [:lower:] */
   2601 #define cbit_word    160      /* [:word:] or \w */
   2602 #define cbit_graph   192      /* [:graph:] */
   2603 #define cbit_print   224      /* [:print:] */
   2604 #define cbit_punct   256      /* [:punct:] */
   2605 #define cbit_cntrl   288      /* [:cntrl:] */
   2606 #define cbit_length  320      /* Length of the cbits table */
   2607 
   2608 /* Offsets of the various tables from the base tables pointer, and
   2609 total length. */
   2610 
   2611 #define lcc_offset      0
   2612 #define fcc_offset    256
   2613 #define cbits_offset  512
   2614 #define ctypes_offset (cbits_offset + cbit_length)
   2615 #define tables_length (ctypes_offset + 256)
   2616 
   2617 /* Internal function and data prefixes. */
   2618 
   2619 #if defined COMPILE_PCRE8
   2620 #ifndef PUBL
   2621 #define PUBL(name) pcre_##name
   2622 #endif
   2623 #ifndef PRIV
   2624 #define PRIV(name) _pcre_##name
   2625 #endif
   2626 #elif defined COMPILE_PCRE16
   2627 #ifndef PUBL
   2628 #define PUBL(name) pcre16_##name
   2629 #endif
   2630 #ifndef PRIV
   2631 #define PRIV(name) _pcre16_##name
   2632 #endif
   2633 #elif defined COMPILE_PCRE32
   2634 #ifndef PUBL
   2635 #define PUBL(name) pcre32_##name
   2636 #endif
   2637 #ifndef PRIV
   2638 #define PRIV(name) _pcre32_##name
   2639 #endif
   2640 #else
   2641 #error Unsupported compiling mode
   2642 #endif /* COMPILE_PCRE[8|16|32] */
   2643 
   2644 /* Layout of the UCP type table that translates property names into types and
   2645 codes. Each entry used to point directly to a name, but to reduce the number of
   2646 relocations in shared libraries, it now has an offset into a single string
   2647 instead. */
   2648 
   2649 typedef struct {
   2650   pcre_uint16 name_offset;
   2651   pcre_uint16 type;
   2652   pcre_uint16 value;
   2653 } ucp_type_table;
   2654 
   2655 
   2656 /* Internal shared data tables. These are tables that are used by more than one
   2657 of the exported public functions. They have to be "external" in the C sense,
   2658 but are not part of the PCRE public API. The data for these tables is in the
   2659 pcre_tables.c module. */
   2660 
   2661 #ifdef COMPILE_PCRE8
   2662 extern const int            PRIV(utf8_table1)[];
   2663 extern const int            PRIV(utf8_table1_size);
   2664 extern const int            PRIV(utf8_table2)[];
   2665 extern const int            PRIV(utf8_table3)[];
   2666 extern const pcre_uint8     PRIV(utf8_table4)[];
   2667 #endif /* COMPILE_PCRE8 */
   2668 
   2669 extern const char           PRIV(utt_names)[];
   2670 extern const ucp_type_table PRIV(utt)[];
   2671 extern const int            PRIV(utt_size);
   2672 
   2673 extern const pcre_uint8     PRIV(OP_lengths)[];
   2674 extern const pcre_uint8     PRIV(default_tables)[];
   2675 
   2676 extern const pcre_uint32    PRIV(hspace_list)[];
   2677 extern const pcre_uint32    PRIV(vspace_list)[];
   2678 
   2679 
   2680 /* Internal shared functions. These are functions that are used by more than
   2681 one of the exported public functions. They have to be "external" in the C
   2682 sense, but are not part of the PCRE public API. */
   2683 
   2684 /* String comparison functions. */
   2685 #if defined COMPILE_PCRE8
   2686 
   2687 #define STRCMP_UC_UC(str1, str2) \
   2688   strcmp((char *)(str1), (char *)(str2))
   2689 #define STRCMP_UC_C8(str1, str2) \
   2690   strcmp((char *)(str1), (str2))
   2691 #define STRNCMP_UC_UC(str1, str2, num) \
   2692   strncmp((char *)(str1), (char *)(str2), (num))
   2693 #define STRNCMP_UC_C8(str1, str2, num) \
   2694   strncmp((char *)(str1), (str2), (num))
   2695 #define STRLEN_UC(str) strlen((const char *)str)
   2696 
   2697 #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
   2698 
   2699 extern int               PRIV(strcmp_uc_uc)(const pcre_uchar *,
   2700                            const pcre_uchar *);
   2701 extern int               PRIV(strcmp_uc_c8)(const pcre_uchar *,
   2702                            const char *);
   2703 extern int               PRIV(strncmp_uc_uc)(const pcre_uchar *,
   2704                            const pcre_uchar *, unsigned int num);
   2705 extern int               PRIV(strncmp_uc_c8)(const pcre_uchar *,
   2706                            const char *, unsigned int num);
   2707 extern unsigned int      PRIV(strlen_uc)(const pcre_uchar *str);
   2708 
   2709 #define STRCMP_UC_UC(str1, str2) \
   2710   PRIV(strcmp_uc_uc)((str1), (str2))
   2711 #define STRCMP_UC_C8(str1, str2) \
   2712   PRIV(strcmp_uc_c8)((str1), (str2))
   2713 #define STRNCMP_UC_UC(str1, str2, num) \
   2714   PRIV(strncmp_uc_uc)((str1), (str2), (num))
   2715 #define STRNCMP_UC_C8(str1, str2, num) \
   2716   PRIV(strncmp_uc_c8)((str1), (str2), (num))
   2717 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
   2718 
   2719 #endif /* COMPILE_PCRE[8|16|32] */
   2720 
   2721 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
   2722 
   2723 #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
   2724 #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
   2725 
   2726 #elif defined COMPILE_PCRE32
   2727 
   2728 extern int               PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
   2729                            const pcre_uchar *);
   2730 extern int               PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
   2731                            const char *);
   2732 
   2733 #define STRCMP_UC_UC_TEST(str1, str2) \
   2734   (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
   2735 #define STRCMP_UC_C8_TEST(str1, str2) \
   2736   (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
   2737 
   2738 #endif /* COMPILE_PCRE[8|16|32] */
   2739 
   2740 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
   2741 extern BOOL              PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
   2742                            int *, BOOL);
   2743 extern unsigned int      PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
   2744 extern int               PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
   2745 extern BOOL              PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
   2746                            int *, BOOL);
   2747 extern BOOL              PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
   2748 
   2749 #ifdef SUPPORT_JIT
   2750 extern void              PRIV(jit_compile)(const REAL_PCRE *,
   2751                            PUBL(extra) *, int);
   2752 extern int               PRIV(jit_exec)(const PUBL(extra) *,
   2753                            const pcre_uchar *, int, int, int, int *, int);
   2754 extern void              PRIV(jit_free)(void *);
   2755 extern int               PRIV(jit_get_size)(void *);
   2756 extern const char*       PRIV(jit_get_target)(void);
   2757 #endif
   2758 
   2759 /* Unicode character database (UCD) */
   2760 
   2761 typedef struct {
   2762   pcre_uint8 script;     /* ucp_Arabic, etc. */
   2763   pcre_uint8 chartype;   /* ucp_Cc, etc. (general categories) */
   2764   pcre_uint8 gbprop;     /* ucp_gbControl, etc. (grapheme break property) */
   2765   pcre_uint8 caseset;    /* offset to multichar other cases or zero */
   2766   pcre_int32 other_case; /* offset to other case, or zero if none */
   2767 } ucd_record;
   2768 
   2769 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
   2770 extern const ucd_record  PRIV(ucd_records)[];
   2771 extern const pcre_uint8  PRIV(ucd_stage1)[];
   2772 extern const pcre_uint16 PRIV(ucd_stage2)[];
   2773 extern const pcre_uint32 PRIV(ucp_gentype)[];
   2774 extern const pcre_uint32 PRIV(ucp_gbtable)[];
   2775 #ifdef SUPPORT_JIT
   2776 extern const int         PRIV(ucp_typerange)[];
   2777 #endif
   2778 
   2779 #ifdef SUPPORT_UCP
   2780 /* UCD access macros */
   2781 
   2782 #define UCD_BLOCK_SIZE 128
   2783 #define GET_UCD(ch) (PRIV(ucd_records) + \
   2784         PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
   2785         UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
   2786 
   2787 #define UCD_CHARTYPE(ch)    GET_UCD(ch)->chartype
   2788 #define UCD_SCRIPT(ch)      GET_UCD(ch)->script
   2789 #define UCD_CATEGORY(ch)    PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
   2790 #define UCD_GRAPHBREAK(ch)  GET_UCD(ch)->gbprop
   2791 #define UCD_CASESET(ch)     GET_UCD(ch)->caseset
   2792 #define UCD_OTHERCASE(ch)   ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
   2793 
   2794 #endif /* SUPPORT_UCP */
   2795 
   2796 #endif
   2797 
   2798 /* End of pcre_internal.h */
   2799