1 /*************************************************
2 *      Perl-Compatible Regular Expressions       *
3 *************************************************/
4 
5 /* PCRE2 is a library of functions to support regular expressions whose syntax
6 and semantics are as close as possible to those of the Perl 5 language.
7 
8                        Written by Philip Hazel
9      Original API code Copyright (c) 1997-2012 University of Cambridge
10           New API code Copyright (c) 2016-2018 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 #ifndef PCRE2_INTERNAL_H_IDEMPOTENT_GUARD
42 #define PCRE2_INTERNAL_H_IDEMPOTENT_GUARD
43 
44 /* We do not support both EBCDIC and Unicode at the same time. The "configure"
45 script prevents both being selected, but not everybody uses "configure". EBCDIC
46 is only supported for the 8-bit library, but the check for this has to be later
47 in this file, because the first part is not width-dependent, and is included by
48 pcre2test.c with CODE_UNIT_WIDTH == 0. */
49 
50 #if defined EBCDIC && defined SUPPORT_UNICODE
51 #error The use of both EBCDIC and SUPPORT_UNICODE is not supported.
52 #endif
53 
54 /* Standard C headers */
55 
56 #include <ctype.h>
57 #include <limits.h>
58 #include <stddef.h>
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 
63 /* Macros to make boolean values more obvious. The #ifndef is to pacify
64 compiler warnings in environments where these macros are defined elsewhere.
65 Unfortunately, there is no way to do the same for the typedef. */
66 
67 typedef int BOOL;
68 #ifndef FALSE
69 #define FALSE   0
70 #define TRUE    1
71 #endif
72 
73 /* Valgrind (memcheck) support */
74 
75 #ifdef SUPPORT_VALGRIND
76 #include <valgrind/memcheck.h>
77 #endif
78 
79 /* Older versions of MSVC lack snprintf(). This define allows for
80 warning/error-free compilation and testing with MSVC compilers back to at least
81 MSVC 10/2010. Except for VC6 (which is missing some fundamentals and fails). */
82 
83 #if defined(_MSC_VER) && (_MSC_VER < 1900)
84 #define snprintf _snprintf
85 #endif
86 
87 /* When compiling a DLL for Windows, the exported symbols have to be declared
88 using some MS magic. I found some useful information on this web page:
89 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
90 information there, using __declspec(dllexport) without "extern" we have a
91 definition; with "extern" we have a declaration. The settings here override the
92 setting in pcre2.h (which is included below); it defines only PCRE2_EXP_DECL,
93 which is all that is needed for applications (they just import the symbols). We
94 use:
95 
96   PCRE2_EXP_DECL    for declarations
97   PCRE2_EXP_DEFN    for definitions
98 
99 The reason for wrapping this in #ifndef PCRE2_EXP_DECL is so that pcre2test,
100 which is an application, but needs to import this file in order to "peek" at
101 internals, can #include pcre2.h first to get an application's-eye view.
102 
103 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
104 special-purpose environments) might want to stick other stuff in front of
105 exported symbols. That's why, in the non-Windows case, we set PCRE2_EXP_DEFN
106 only if it is not already set. */
107 
108 #ifndef PCRE2_EXP_DECL
109 #  ifdef _WIN32
110 #    ifndef PCRE2_STATIC
111 #      define PCRE2_EXP_DECL       extern __declspec(dllexport)
112 #      define PCRE2_EXP_DEFN       __declspec(dllexport)
113 #    else
114 #      define PCRE2_EXP_DECL       extern
115 #      define PCRE2_EXP_DEFN
116 #    endif
117 #  else
118 #    ifdef __cplusplus
119 #      define PCRE2_EXP_DECL       extern "C"
120 #    else
121 #      define PCRE2_EXP_DECL       extern
122 #    endif
123 #    ifndef PCRE2_EXP_DEFN
124 #      define PCRE2_EXP_DEFN       PCRE2_EXP_DECL
125 #    endif
126 #  endif
127 #endif
128 
129 /* Include the public PCRE2 header and the definitions of UCP character
130 property values. This must follow the setting of PCRE2_EXP_DECL above. */
131 
132 #include "pcre2.h"
133 #include "pcre2_ucp.h"
134 
135 /* When PCRE2 is compiled as a C++ library, the subject pointer can be replaced
136 with a custom type. This makes it possible, for example, to allow pcre2_match()
137 to process subject strings that are discontinuous by using a smart pointer
138 class. It must always be possible to inspect all of the subject string in
139 pcre2_match() because of the way it backtracks. */
140 
141 /* WARNING: This is as yet untested for PCRE2. */
142 
143 #ifdef CUSTOM_SUBJECT_PTR
144 #undef PCRE2_SPTR
145 #define PCRE2_SPTR CUSTOM_SUBJECT_PTR
146 #endif
147 
148 /* When checking for integer overflow in pcre2_compile(), we need to handle
149 large integers. If a 64-bit integer type is available, we can use that.
150 Otherwise we have to cast to double, which of course requires floating point
151 arithmetic. Handle this by defining a macro for the appropriate type. If
152 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
153 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
154 by "configure". */
155 
156 #if defined HAVE_STDINT_H
157 #include <stdint.h>
158 #elif defined HAVE_INTTYPES_H
159 #include <inttypes.h>
160 #endif
161 
162 #if defined INT64_MAX || defined int64_t
163 #define INT64_OR_DOUBLE int64_t
164 #else
165 #define INT64_OR_DOUBLE double
166 #endif
167 
168 /* External (in the C sense) functions and tables that are private to the
169 libraries are always referenced using the PRIV macro. This makes it possible
170 for pcre2test.c to include some of the source files from the libraries using a
171 different PRIV definition to avoid name clashes. It also makes it clear in the
172 code that a non-static object is being referenced. */
173 
174 #ifndef PRIV
175 #define PRIV(name) _pcre2_##name
176 #endif
177 
178 /* When compiling for use with the Virtual Pascal compiler, these functions
179 need to have their names changed. PCRE2 must be compiled with the -DVPCOMPAT
180 option on the command line. */
181 
182 #ifdef VPCOMPAT
183 #define strlen(s)        _strlen(s)
184 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
185 #define memcmp(s,c,n)    _memcmp(s,c,n)
186 #define memcpy(d,s,n)    _memcpy(d,s,n)
187 #define memmove(d,s,n)   _memmove(d,s,n)
188 #define memset(s,c,n)    _memset(s,c,n)
189 #else  /* VPCOMPAT */
190 
191 /* Otherwise, to cope with SunOS4 and other systems that lack memmove(), define
192 a macro that calls an emulating function. */
193 
194 #ifndef HAVE_MEMMOVE
195 #undef  memmove          /* Some systems may have a macro */
196 #define memmove(a, b, c) PRIV(memmove)(a, b, c)
197 #endif   /* not HAVE_MEMMOVE */
198 #endif   /* not VPCOMPAT */
199 
200 /* This is an unsigned int value that no UTF character can ever have, as
201 Unicode doesn't go beyond 0x0010ffff. */
202 
203 #define NOTACHAR 0xffffffff
204 
205 /* This is the largest valid UTF/Unicode code point. */
206 
207 #define MAX_UTF_CODE_POINT 0x10ffff
208 
209 /* Compile-time positive error numbers (all except UTF errors, which are
210 negative) start at this value. It should probably never be changed, in case
211 some application is checking for specific numbers. There is a copy of this
212 #define in pcre2posix.c (which now no longer includes this file). Ideally, a
213 way of having a single definition should be found, but as the number is
214 unlikely to change, this is not a pressing issue. The original reason for
215 having a base other than 0 was to keep the absolute values of compile-time and
216 run-time error numbers numerically different, but in the event the code does
217 not rely on this. */
218 
219 #define COMPILE_ERROR_BASE 100
220 
221 /* The initial frames vector for remembering backtracking points in
222 pcre2_match() is allocated on the system stack, of this size (bytes). The size
223 must be a multiple of sizeof(PCRE2_SPTR) in all environments, so making it a
224 multiple of 8 is best. Typical frame sizes are a few hundred bytes (it depends
225 on the number of capturing parentheses) so 20KiB handles quite a few frames. A
226 larger vector on the heap is obtained for patterns that need more frames. The
227 maximum size of this can be limited. */
228 
229 #define START_FRAMES_SIZE 20480
230 
231 /* Similarly, for DFA matching, an initial internal workspace vector is
232 allocated on the stack. */
233 
234 #define DFA_START_RWS_SIZE 30720
235 
236 /* Define the default BSR convention. */
237 
238 #ifdef BSR_ANYCRLF
239 #define BSR_DEFAULT PCRE2_BSR_ANYCRLF
240 #else
241 #define BSR_DEFAULT PCRE2_BSR_UNICODE
242 #endif
243 
244 
245 /* ---------------- Basic UTF-8 macros ---------------- */
246 
247 /* These UTF-8 macros are always defined because they are used in pcre2test for
248 handling wide characters in 16-bit and 32-bit modes, even if an 8-bit library
249 is not supported. */
250 
251 /* Tests whether a UTF-8 code point needs extra bytes to decode. */
252 
253 #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
254 
255 /* The following macros were originally written in the form of loops that used
256 data from the tables whose names start with PRIV(utf8_table). They were
257 rewritten by a user so as not to use loops, because in some environments this
258 gives a significant performance advantage, and it seems never to do any harm.
259 */
260 
261 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
262 advancing the pointer. */
263 
264 #define GETUTF8(c, eptr) \
265     { \
266     if ((c & 0x20u) == 0) \
267       c = ((c & 0x1fu) << 6) | (eptr[1] & 0x3fu); \
268     else if ((c & 0x10u) == 0) \
269       c = ((c & 0x0fu) << 12) | ((eptr[1] & 0x3fu) << 6) | (eptr[2] & 0x3fu); \
270     else if ((c & 0x08u) == 0) \
271       c = ((c & 0x07u) << 18) | ((eptr[1] & 0x3fu) << 12) | \
272       ((eptr[2] & 0x3fu) << 6) | (eptr[3] & 0x3fu); \
273     else if ((c & 0x04u) == 0) \
274       c = ((c & 0x03u) << 24) | ((eptr[1] & 0x3fu) << 18) | \
275           ((eptr[2] & 0x3fu) << 12) | ((eptr[3] & 0x3fu) << 6) | \
276           (eptr[4] & 0x3fu); \
277     else \
278       c = ((c & 0x01u) << 30) | ((eptr[1] & 0x3fu) << 24) | \
279           ((eptr[2] & 0x3fu) << 18) | ((eptr[3] & 0x3fu) << 12) | \
280           ((eptr[4] & 0x3fu) << 6) | (eptr[5] & 0x3fu); \
281     }
282 
283 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
284 the pointer. */
285 
286 #define GETUTF8INC(c, eptr) \
287     { \
288     if ((c & 0x20u) == 0) \
289       c = ((c & 0x1fu) << 6) | (*eptr++ & 0x3fu); \
290     else if ((c & 0x10u) == 0) \
291       { \
292       c = ((c & 0x0fu) << 12) | ((*eptr & 0x3fu) << 6) | (eptr[1] & 0x3fu); \
293       eptr += 2; \
294       } \
295     else if ((c & 0x08u) == 0) \
296       { \
297       c = ((c & 0x07u) << 18) | ((*eptr & 0x3fu) << 12) | \
298           ((eptr[1] & 0x3fu) << 6) | (eptr[2] & 0x3fu); \
299       eptr += 3; \
300       } \
301     else if ((c & 0x04u) == 0) \
302       { \
303       c = ((c & 0x03u) << 24) | ((*eptr & 0x3fu) << 18) | \
304           ((eptr[1] & 0x3fu) << 12) | ((eptr[2] & 0x3fu) << 6) | \
305           (eptr[3] & 0x3fu); \
306       eptr += 4; \
307       } \
308     else \
309       { \
310       c = ((c & 0x01u) << 30) | ((*eptr & 0x3fu) << 24) | \
311           ((eptr[1] & 0x3fu) << 18) | ((eptr[2] & 0x3fu) << 12) | \
312           ((eptr[3] & 0x3fu) << 6) | (eptr[4] & 0x3fu); \
313       eptr += 5; \
314       } \
315     }
316 
317 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
318 advancing the pointer, incrementing the length. */
319 
320 #define GETUTF8LEN(c, eptr, len) \
321     { \
322     if ((c & 0x20u) == 0) \
323       { \
324       c = ((c & 0x1fu) << 6) | (eptr[1] & 0x3fu); \
325       len++; \
326       } \
327     else if ((c & 0x10u)  == 0) \
328       { \
329       c = ((c & 0x0fu) << 12) | ((eptr[1] & 0x3fu) << 6) | (eptr[2] & 0x3fu); \
330       len += 2; \
331       } \
332     else if ((c & 0x08u)  == 0) \
333       {\
334       c = ((c & 0x07u) << 18) | ((eptr[1] & 0x3fu) << 12) | \
335           ((eptr[2] & 0x3fu) << 6) | (eptr[3] & 0x3fu); \
336       len += 3; \
337       } \
338     else if ((c & 0x04u)  == 0) \
339       { \
340       c = ((c & 0x03u) << 24) | ((eptr[1] & 0x3fu) << 18) | \
341           ((eptr[2] & 0x3fu) << 12) | ((eptr[3] & 0x3fu) << 6) | \
342           (eptr[4] & 0x3fu); \
343       len += 4; \
344       } \
345     else \
346       {\
347       c = ((c & 0x01u) << 30) | ((eptr[1] & 0x3fu) << 24) | \
348           ((eptr[2] & 0x3fu) << 18) | ((eptr[3] & 0x3fu) << 12) | \
349           ((eptr[4] & 0x3fu) << 6) | (eptr[5] & 0x3fu); \
350       len += 5; \
351       } \
352     }
353 
354 /* --------------- Whitespace macros ---------------- */
355 
356 /* Tests for Unicode horizontal and vertical whitespace characters must check a
357 number of different values. Using a switch statement for this generates the
358 fastest code (no loop, no memory access), and there are several places in the
359 interpreter code where this happens. In order to ensure that all the case lists
360 remain in step, we use macros so that there is only one place where the lists
361 are defined.
362 
363 These values are also required as lists in pcre2_compile.c when processing \h,
364 \H, \v and \V in a character class. The lists are defined in pcre2_tables.c,
365 but macros that define the values are here so that all the definitions are
366 together. The lists must be in ascending character order, terminated by
367 NOTACHAR (which is 0xffffffff).
368 
369 Any changes should ensure that the various macros are kept in step with each
370 other. NOTE: The values also appear in pcre2_jit_compile.c. */
371 
372 /* -------------- ASCII/Unicode environments -------------- */
373 
374 #ifndef EBCDIC
375 
376 /* Character U+180E (Mongolian Vowel Separator) is not included in the list of
377 spaces in the Unicode file PropList.txt, and Perl does not recognize it as a
378 space. However, in many other sources it is listed as a space and has been in
379 PCRE (both APIs) for a long time. */
380 
381 #define HSPACE_LIST \
382   CHAR_HT, CHAR_SPACE, CHAR_NBSP, \
383   0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
384   0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
385   NOTACHAR
386 
387 #define HSPACE_MULTIBYTE_CASES \
388   case 0x1680:  /* OGHAM SPACE MARK */ \
389   case 0x180e:  /* MONGOLIAN VOWEL SEPARATOR */ \
390   case 0x2000:  /* EN QUAD */ \
391   case 0x2001:  /* EM QUAD */ \
392   case 0x2002:  /* EN SPACE */ \
393   case 0x2003:  /* EM SPACE */ \
394   case 0x2004:  /* THREE-PER-EM SPACE */ \
395   case 0x2005:  /* FOUR-PER-EM SPACE */ \
396   case 0x2006:  /* SIX-PER-EM SPACE */ \
397   case 0x2007:  /* FIGURE SPACE */ \
398   case 0x2008:  /* PUNCTUATION SPACE */ \
399   case 0x2009:  /* THIN SPACE */ \
400   case 0x200A:  /* HAIR SPACE */ \
401   case 0x202f:  /* NARROW NO-BREAK SPACE */ \
402   case 0x205f:  /* MEDIUM MATHEMATICAL SPACE */ \
403   case 0x3000   /* IDEOGRAPHIC SPACE */
404 
405 #define HSPACE_BYTE_CASES \
406   case CHAR_HT: \
407   case CHAR_SPACE: \
408   case CHAR_NBSP
409 
410 #define HSPACE_CASES \
411   HSPACE_BYTE_CASES: \
412   HSPACE_MULTIBYTE_CASES
413 
414 #define VSPACE_LIST \
415   CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
416 
417 #define VSPACE_MULTIBYTE_CASES \
418   case 0x2028:    /* LINE SEPARATOR */ \
419   case 0x2029     /* PARAGRAPH SEPARATOR */
420 
421 #define VSPACE_BYTE_CASES \
422   case CHAR_LF: \
423   case CHAR_VT: \
424   case CHAR_FF: \
425   case CHAR_CR: \
426   case CHAR_NEL
427 
428 #define VSPACE_CASES \
429   VSPACE_BYTE_CASES: \
430   VSPACE_MULTIBYTE_CASES
431 
432 /* -------------- EBCDIC environments -------------- */
433 
434 #else
435 #define HSPACE_LIST CHAR_HT, CHAR_SPACE, CHAR_NBSP, NOTACHAR
436 
437 #define HSPACE_BYTE_CASES \
438   case CHAR_HT: \
439   case CHAR_SPACE: \
440   case CHAR_NBSP
441 
442 #define HSPACE_CASES HSPACE_BYTE_CASES
443 
444 #ifdef EBCDIC_NL25
445 #define VSPACE_LIST \
446   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
447 #else
448 #define VSPACE_LIST \
449   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
450 #endif
451 
452 #define VSPACE_BYTE_CASES \
453   case CHAR_LF: \
454   case CHAR_VT: \
455   case CHAR_FF: \
456   case CHAR_CR: \
457   case CHAR_NEL
458 
459 #define VSPACE_CASES VSPACE_BYTE_CASES
460 #endif  /* EBCDIC */
461 
462 /* -------------- End of whitespace macros -------------- */
463 
464 
465 /* PCRE2 is able to support several different kinds of newline (CR, LF, CRLF,
466 "any" and "anycrlf" at present). The following macros are used to package up
467 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
468 modules to indicate in which datablock the parameters exist, and what the
469 start/end of string field names are. */
470 
471 #define NLTYPE_FIXED    0     /* Newline is a fixed length string */
472 #define NLTYPE_ANY      1     /* Newline is any Unicode line ending */
473 #define NLTYPE_ANYCRLF  2     /* Newline is CR, LF, or CRLF */
474 
475 /* This macro checks for a newline at the given position */
476 
477 #define IS_NEWLINE(p) \
478   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
479     ((p) < NLBLOCK->PSEND && \
480      PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
481        &(NLBLOCK->nllen), utf)) \
482     : \
483     ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
484      UCHAR21TEST(p) == NLBLOCK->nl[0] && \
485      (NLBLOCK->nllen == 1 || UCHAR21TEST(p+1) == NLBLOCK->nl[1])       \
486     ) \
487   )
488 
489 /* This macro checks for a newline immediately preceding the given position */
490 
491 #define WAS_NEWLINE(p) \
492   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
493     ((p) > NLBLOCK->PSSTART && \
494      PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
495        &(NLBLOCK->nllen), utf)) \
496     : \
497     ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
498      UCHAR21TEST(p - NLBLOCK->nllen) == NLBLOCK->nl[0] &&              \
499      (NLBLOCK->nllen == 1 || UCHAR21TEST(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
500     ) \
501   )
502 
503 /* Private flags containing information about the compiled pattern. The first
504 three must not be changed, because whichever is set is actually the number of
505 bytes in a code unit in that mode. */
506 
507 #define PCRE2_MODE8         0x00000001  /* compiled in 8 bit mode */
508 #define PCRE2_MODE16        0x00000002  /* compiled in 16 bit mode */
509 #define PCRE2_MODE32        0x00000004  /* compiled in 32 bit mode */
510 #define PCRE2_FIRSTSET      0x00000010  /* first_code unit is set */
511 #define PCRE2_FIRSTCASELESS 0x00000020  /* caseless first code unit */
512 #define PCRE2_FIRSTMAPSET   0x00000040  /* bitmap of first code units is set */
513 #define PCRE2_LASTSET       0x00000080  /* last code unit is set */
514 #define PCRE2_LASTCASELESS  0x00000100  /* caseless last code unit */
515 #define PCRE2_STARTLINE     0x00000200  /* start after \n for multiline */
516 #define PCRE2_JCHANGED      0x00000400  /* j option used in pattern */
517 #define PCRE2_HASCRORLF     0x00000800  /* explicit \r or \n in pattern */
518 #define PCRE2_HASTHEN       0x00001000  /* pattern contains (*THEN) */
519 #define PCRE2_MATCH_EMPTY   0x00002000  /* pattern can match empty string */
520 #define PCRE2_BSR_SET       0x00004000  /* BSR was set in the pattern */
521 #define PCRE2_NL_SET        0x00008000  /* newline was set in the pattern */
522 #define PCRE2_NOTEMPTY_SET  0x00010000  /* (*NOTEMPTY) used        ) keep */
523 #define PCRE2_NE_ATST_SET   0x00020000  /* (*NOTEMPTY_ATSTART) used) together */
524 #define PCRE2_DEREF_TABLES  0x00040000  /* release character tables */
525 #define PCRE2_NOJIT         0x00080000  /* (*NOJIT) used */
526 #define PCRE2_HASBKPORX     0x00100000  /* contains \P, \p, or \X */
527 #define PCRE2_DUPCAPUSED    0x00200000  /* contains (?| */
528 #define PCRE2_HASBKC        0x00400000  /* contains \C */
529 
530 #define PCRE2_MODE_MASK     (PCRE2_MODE8 | PCRE2_MODE16 | PCRE2_MODE32)
531 
532 /* Values for the matchedby field in a match data block. */
533 
534 enum { PCRE2_MATCHEDBY_INTERPRETER,     /* pcre2_match() */
535        PCRE2_MATCHEDBY_DFA_INTERPRETER, /* pcre2_dfa_match() */
536        PCRE2_MATCHEDBY_JIT };           /* pcre2_jit_match() */
537 
538 /* Magic number to provide a small check against being handed junk. */
539 
540 #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
541 
542 /* The maximum remaining length of subject we are prepared to search for a
543 req_unit match. In 8-bit mode, memchr() is used and is much faster than the
544 search loop that has to be used in 16-bit and 32-bit modes. */
545 
546 #if PCRE2_CODE_UNIT_WIDTH == 8
547 #define REQ_CU_MAX 2000
548 #else
549 #define REQ_CU_MAX 1000
550 #endif
551 
552 /* Offsets for the bitmap tables in the cbits set of tables. Each table
553 contains a set of bits for a class map. Some classes are built by combining
554 these tables. */
555 
556 #define cbit_space     0      /* [:space:] or \s */
557 #define cbit_xdigit   32      /* [:xdigit:] */
558 #define cbit_digit    64      /* [:digit:] or \d */
559 #define cbit_upper    96      /* [:upper:] */
560 #define cbit_lower   128      /* [:lower:] */
561 #define cbit_word    160      /* [:word:] or \w */
562 #define cbit_graph   192      /* [:graph:] */
563 #define cbit_print   224      /* [:print:] */
564 #define cbit_punct   256      /* [:punct:] */
565 #define cbit_cntrl   288      /* [:cntrl:] */
566 #define cbit_length  320      /* Length of the cbits table */
567 
568 /* Bit definitions for entries in the ctypes table. Do not change these values
569 without checking pcre2_jit_compile.c, which has an assertion to ensure that
570 ctype_word has the value 16. */
571 
572 #define ctype_space   0x01
573 #define ctype_letter  0x02
574 #define ctype_digit   0x04
575 #define ctype_xdigit  0x08    /* not actually used any more */
576 #define ctype_word    0x10    /* alphanumeric or '_' */
577 
578 /* Offsets of the various tables from the base tables pointer, and
579 total length of the tables. */
580 
581 #define lcc_offset      0                           /* Lower case */
582 #define fcc_offset    256                           /* Flip case */
583 #define cbits_offset  512                           /* Character classes */
584 #define ctypes_offset (cbits_offset + cbit_length)  /* Character types */
585 #define tables_length (ctypes_offset + 256)
586 
587 
588 /* -------------------- Character and string names ------------------------ */
589 
590 /* If PCRE2 is to support UTF-8 on EBCDIC platforms, we cannot use normal
591 character constants like '*' because the compiler would emit their EBCDIC code,
592 which is different from their ASCII/UTF-8 code. Instead we define macros for
593 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
594 is enabled. When UTF-8 support is not enabled, the definitions use character
595 literals. Both character and string versions of each character are needed, and
596 there are some longer strings as well.
597 
598 This means that, on EBCDIC platforms, the PCRE2 library can handle either
599 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
600 would need different lookups depending on whether PCRE2_UTF was set or not.
601 This would make it impossible to use characters in switch/case statements,
602 which would reduce performance. For a theoretical use (which nobody has asked
603 for) in a minority area (EBCDIC platforms), this is not sensible. Any
604 application that did need both could compile two versions of the library, using
605 macros to give the functions distinct names. */
606 
607 #ifndef SUPPORT_UNICODE
608 
609 /* UTF-8 support is not enabled; use the platform-dependent character literals
610 so that PCRE2 works in both ASCII and EBCDIC environments, but only in non-UTF
611 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
612 characters, a common practice has been to use its NL (0x15) character as the
613 line terminator in C-like processing environments. However, sometimes the LF
614 (0x25) character is used instead, according to this Unicode document:
615 
616 http://unicode.org/standard/reports/tr13/tr13-5.html
617 
618 PCRE2 defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
619 instead. Whichever is *not* chosen is defined as NEL.
620 
621 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
622 same code point. */
623 
624 #ifdef EBCDIC
625 
626 #ifndef EBCDIC_NL25
627 #define CHAR_NL                     '\x15'
628 #define CHAR_NEL                    '\x25'
629 #define STR_NL                      "\x15"
630 #define STR_NEL                     "\x25"
631 #else
632 #define CHAR_NL                     '\x25'
633 #define CHAR_NEL                    '\x15'
634 #define STR_NL                      "\x25"
635 #define STR_NEL                     "\x15"
636 #endif
637 
638 #define CHAR_LF                     CHAR_NL
639 #define STR_LF                      STR_NL
640 
641 #define CHAR_ESC                    '\047'
642 #define CHAR_DEL                    '\007'
643 #define CHAR_NBSP                   ((unsigned char)'\x41')
644 #define STR_ESC                     "\047"
645 #define STR_DEL                     "\007"
646 
647 #else  /* Not EBCDIC */
648 
649 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
650 compatibility. NEL is the Unicode newline character; make sure it is
651 a positive value. */
652 
653 #define CHAR_LF                     '\n'
654 #define CHAR_NL                     CHAR_LF
655 #define CHAR_NEL                    ((unsigned char)'\x85')
656 #define CHAR_ESC                    '\033'
657 #define CHAR_DEL                    '\177'
658 #define CHAR_NBSP                   ((unsigned char)'\xa0')
659 
660 #define STR_LF                      "\n"
661 #define STR_NL                      STR_LF
662 #define STR_NEL                     "\x85"
663 #define STR_ESC                     "\033"
664 #define STR_DEL                     "\177"
665 
666 #endif  /* EBCDIC */
667 
668 /* The remaining definitions work in both environments. */
669 
670 #define CHAR_NUL                    '\0'
671 #define CHAR_HT                     '\t'
672 #define CHAR_VT                     '\v'
673 #define CHAR_FF                     '\f'
674 #define CHAR_CR                     '\r'
675 #define CHAR_BS                     '\b'
676 #define CHAR_BEL                    '\a'
677 
678 #define CHAR_SPACE                  ' '
679 #define CHAR_EXCLAMATION_MARK       '!'
680 #define CHAR_QUOTATION_MARK         '"'
681 #define CHAR_NUMBER_SIGN            '#'
682 #define CHAR_DOLLAR_SIGN            '$'
683 #define CHAR_PERCENT_SIGN           '%'
684 #define CHAR_AMPERSAND              '&'
685 #define CHAR_APOSTROPHE             '\''
686 #define CHAR_LEFT_PARENTHESIS       '('
687 #define CHAR_RIGHT_PARENTHESIS      ')'
688 #define CHAR_ASTERISK               '*'
689 #define CHAR_PLUS                   '+'
690 #define CHAR_COMMA                  ','
691 #define CHAR_MINUS                  '-'
692 #define CHAR_DOT                    '.'
693 #define CHAR_SLASH                  '/'
694 #define CHAR_0                      '0'
695 #define CHAR_1                      '1'
696 #define CHAR_2                      '2'
697 #define CHAR_3                      '3'
698 #define CHAR_4                      '4'
699 #define CHAR_5                      '5'
700 #define CHAR_6                      '6'
701 #define CHAR_7                      '7'
702 #define CHAR_8                      '8'
703 #define CHAR_9                      '9'
704 #define CHAR_COLON                  ':'
705 #define CHAR_SEMICOLON              ';'
706 #define CHAR_LESS_THAN_SIGN         '<'
707 #define CHAR_EQUALS_SIGN            '='
708 #define CHAR_GREATER_THAN_SIGN      '>'
709 #define CHAR_QUESTION_MARK          '?'
710 #define CHAR_COMMERCIAL_AT          '@'
711 #define CHAR_A                      'A'
712 #define CHAR_B                      'B'
713 #define CHAR_C                      'C'
714 #define CHAR_D                      'D'
715 #define CHAR_E                      'E'
716 #define CHAR_F                      'F'
717 #define CHAR_G                      'G'
718 #define CHAR_H                      'H'
719 #define CHAR_I                      'I'
720 #define CHAR_J                      'J'
721 #define CHAR_K                      'K'
722 #define CHAR_L                      'L'
723 #define CHAR_M                      'M'
724 #define CHAR_N                      'N'
725 #define CHAR_O                      'O'
726 #define CHAR_P                      'P'
727 #define CHAR_Q                      'Q'
728 #define CHAR_R                      'R'
729 #define CHAR_S                      'S'
730 #define CHAR_T                      'T'
731 #define CHAR_U                      'U'
732 #define CHAR_V                      'V'
733 #define CHAR_W                      'W'
734 #define CHAR_X                      'X'
735 #define CHAR_Y                      'Y'
736 #define CHAR_Z                      'Z'
737 #define CHAR_LEFT_SQUARE_BRACKET    '['
738 #define CHAR_BACKSLASH              '\\'
739 #define CHAR_RIGHT_SQUARE_BRACKET   ']'
740 #define CHAR_CIRCUMFLEX_ACCENT      '^'
741 #define CHAR_UNDERSCORE             '_'
742 #define CHAR_GRAVE_ACCENT           '`'
743 #define CHAR_a                      'a'
744 #define CHAR_b                      'b'
745 #define CHAR_c                      'c'
746 #define CHAR_d                      'd'
747 #define CHAR_e                      'e'
748 #define CHAR_f                      'f'
749 #define CHAR_g                      'g'
750 #define CHAR_h                      'h'
751 #define CHAR_i                      'i'
752 #define CHAR_j                      'j'
753 #define CHAR_k                      'k'
754 #define CHAR_l                      'l'
755 #define CHAR_m                      'm'
756 #define CHAR_n                      'n'
757 #define CHAR_o                      'o'
758 #define CHAR_p                      'p'
759 #define CHAR_q                      'q'
760 #define CHAR_r                      'r'
761 #define CHAR_s                      's'
762 #define CHAR_t                      't'
763 #define CHAR_u                      'u'
764 #define CHAR_v                      'v'
765 #define CHAR_w                      'w'
766 #define CHAR_x                      'x'
767 #define CHAR_y                      'y'
768 #define CHAR_z                      'z'
769 #define CHAR_LEFT_CURLY_BRACKET     '{'
770 #define CHAR_VERTICAL_LINE          '|'
771 #define CHAR_RIGHT_CURLY_BRACKET    '}'
772 #define CHAR_TILDE                  '~'
773 
774 #define STR_HT                      "\t"
775 #define STR_VT                      "\v"
776 #define STR_FF                      "\f"
777 #define STR_CR                      "\r"
778 #define STR_BS                      "\b"
779 #define STR_BEL                     "\a"
780 
781 #define STR_SPACE                   " "
782 #define STR_EXCLAMATION_MARK        "!"
783 #define STR_QUOTATION_MARK          "\""
784 #define STR_NUMBER_SIGN             "#"
785 #define STR_DOLLAR_SIGN             "$"
786 #define STR_PERCENT_SIGN            "%"
787 #define STR_AMPERSAND               "&"
788 #define STR_APOSTROPHE              "'"
789 #define STR_LEFT_PARENTHESIS        "("
790 #define STR_RIGHT_PARENTHESIS       ")"
791 #define STR_ASTERISK                "*"
792 #define STR_PLUS                    "+"
793 #define STR_COMMA                   ","
794 #define STR_MINUS                   "-"
795 #define STR_DOT                     "."
796 #define STR_SLASH                   "/"
797 #define STR_0                       "0"
798 #define STR_1                       "1"
799 #define STR_2                       "2"
800 #define STR_3                       "3"
801 #define STR_4                       "4"
802 #define STR_5                       "5"
803 #define STR_6                       "6"
804 #define STR_7                       "7"
805 #define STR_8                       "8"
806 #define STR_9                       "9"
807 #define STR_COLON                   ":"
808 #define STR_SEMICOLON               ";"
809 #define STR_LESS_THAN_SIGN          "<"
810 #define STR_EQUALS_SIGN             "="
811 #define STR_GREATER_THAN_SIGN       ">"
812 #define STR_QUESTION_MARK           "?"
813 #define STR_COMMERCIAL_AT           "@"
814 #define STR_A                       "A"
815 #define STR_B                       "B"
816 #define STR_C                       "C"
817 #define STR_D                       "D"
818 #define STR_E                       "E"
819 #define STR_F                       "F"
820 #define STR_G                       "G"
821 #define STR_H                       "H"
822 #define STR_I                       "I"
823 #define STR_J                       "J"
824 #define STR_K                       "K"
825 #define STR_L                       "L"
826 #define STR_M                       "M"
827 #define STR_N                       "N"
828 #define STR_O                       "O"
829 #define STR_P                       "P"
830 #define STR_Q                       "Q"
831 #define STR_R                       "R"
832 #define STR_S                       "S"
833 #define STR_T                       "T"
834 #define STR_U                       "U"
835 #define STR_V                       "V"
836 #define STR_W                       "W"
837 #define STR_X                       "X"
838 #define STR_Y                       "Y"
839 #define STR_Z                       "Z"
840 #define STR_LEFT_SQUARE_BRACKET     "["
841 #define STR_BACKSLASH               "\\"
842 #define STR_RIGHT_SQUARE_BRACKET    "]"
843 #define STR_CIRCUMFLEX_ACCENT       "^"
844 #define STR_UNDERSCORE              "_"
845 #define STR_GRAVE_ACCENT            "`"
846 #define STR_a                       "a"
847 #define STR_b                       "b"
848 #define STR_c                       "c"
849 #define STR_d                       "d"
850 #define STR_e                       "e"
851 #define STR_f                       "f"
852 #define STR_g                       "g"
853 #define STR_h                       "h"
854 #define STR_i                       "i"
855 #define STR_j                       "j"
856 #define STR_k                       "k"
857 #define STR_l                       "l"
858 #define STR_m                       "m"
859 #define STR_n                       "n"
860 #define STR_o                       "o"
861 #define STR_p                       "p"
862 #define STR_q                       "q"
863 #define STR_r                       "r"
864 #define STR_s                       "s"
865 #define STR_t                       "t"
866 #define STR_u                       "u"
867 #define STR_v                       "v"
868 #define STR_w                       "w"
869 #define STR_x                       "x"
870 #define STR_y                       "y"
871 #define STR_z                       "z"
872 #define STR_LEFT_CURLY_BRACKET      "{"
873 #define STR_VERTICAL_LINE           "|"
874 #define STR_RIGHT_CURLY_BRACKET     "}"
875 #define STR_TILDE                   "~"
876 
877 #define STRING_ACCEPT0              "ACCEPT\0"
878 #define STRING_COMMIT0              "COMMIT\0"
879 #define STRING_F0                   "F\0"
880 #define STRING_FAIL0                "FAIL\0"
881 #define STRING_MARK0                "MARK\0"
882 #define STRING_PRUNE0               "PRUNE\0"
883 #define STRING_SKIP0                "SKIP\0"
884 #define STRING_THEN                 "THEN"
885 
886 #define STRING_alpha0               "alpha\0"
887 #define STRING_lower0               "lower\0"
888 #define STRING_upper0               "upper\0"
889 #define STRING_alnum0               "alnum\0"
890 #define STRING_ascii0               "ascii\0"
891 #define STRING_blank0               "blank\0"
892 #define STRING_cntrl0               "cntrl\0"
893 #define STRING_digit0               "digit\0"
894 #define STRING_graph0               "graph\0"
895 #define STRING_print0               "print\0"
896 #define STRING_punct0               "punct\0"
897 #define STRING_space0               "space\0"
898 #define STRING_word0                "word\0"
899 #define STRING_xdigit               "xdigit"
900 
901 #define STRING_DEFINE               "DEFINE"
902 #define STRING_VERSION              "VERSION"
903 #define STRING_WEIRD_STARTWORD      "[:<:]]"
904 #define STRING_WEIRD_ENDWORD        "[:>:]]"
905 
906 #define STRING_CR_RIGHTPAR                "CR)"
907 #define STRING_LF_RIGHTPAR                "LF)"
908 #define STRING_CRLF_RIGHTPAR              "CRLF)"
909 #define STRING_ANY_RIGHTPAR               "ANY)"
910 #define STRING_ANYCRLF_RIGHTPAR           "ANYCRLF)"
911 #define STRING_NUL_RIGHTPAR               "NUL)"
912 #define STRING_BSR_ANYCRLF_RIGHTPAR       "BSR_ANYCRLF)"
913 #define STRING_BSR_UNICODE_RIGHTPAR       "BSR_UNICODE)"
914 #define STRING_UTF8_RIGHTPAR              "UTF8)"
915 #define STRING_UTF16_RIGHTPAR             "UTF16)"
916 #define STRING_UTF32_RIGHTPAR             "UTF32)"
917 #define STRING_UTF_RIGHTPAR               "UTF)"
918 #define STRING_UCP_RIGHTPAR               "UCP)"
919 #define STRING_NO_AUTO_POSSESS_RIGHTPAR   "NO_AUTO_POSSESS)"
920 #define STRING_NO_DOTSTAR_ANCHOR_RIGHTPAR "NO_DOTSTAR_ANCHOR)"
921 #define STRING_NO_JIT_RIGHTPAR            "NO_JIT)"
922 #define STRING_NO_START_OPT_RIGHTPAR      "NO_START_OPT)"
923 #define STRING_NOTEMPTY_RIGHTPAR          "NOTEMPTY)"
924 #define STRING_NOTEMPTY_ATSTART_RIGHTPAR  "NOTEMPTY_ATSTART)"
925 #define STRING_LIMIT_HEAP_EQ              "LIMIT_HEAP="
926 #define STRING_LIMIT_MATCH_EQ             "LIMIT_MATCH="
927 #define STRING_LIMIT_DEPTH_EQ             "LIMIT_DEPTH="
928 #define STRING_LIMIT_RECURSION_EQ         "LIMIT_RECURSION="
929 #define STRING_MARK                       "MARK"
930 
931 #else  /* SUPPORT_UNICODE */
932 
933 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
934 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
935 only. */
936 
937 #define CHAR_HT                     '\011'
938 #define CHAR_VT                     '\013'
939 #define CHAR_FF                     '\014'
940 #define CHAR_CR                     '\015'
941 #define CHAR_LF                     '\012'
942 #define CHAR_NL                     CHAR_LF
943 #define CHAR_NEL                    ((unsigned char)'\x85')
944 #define CHAR_BS                     '\010'
945 #define CHAR_BEL                    '\007'
946 #define CHAR_ESC                    '\033'
947 #define CHAR_DEL                    '\177'
948 
949 #define CHAR_NUL                    '\0'
950 #define CHAR_SPACE                  '\040'
951 #define CHAR_EXCLAMATION_MARK       '\041'
952 #define CHAR_QUOTATION_MARK         '\042'
953 #define CHAR_NUMBER_SIGN            '\043'
954 #define CHAR_DOLLAR_SIGN            '\044'
955 #define CHAR_PERCENT_SIGN           '\045'
956 #define CHAR_AMPERSAND              '\046'
957 #define CHAR_APOSTROPHE             '\047'
958 #define CHAR_LEFT_PARENTHESIS       '\050'
959 #define CHAR_RIGHT_PARENTHESIS      '\051'
960 #define CHAR_ASTERISK               '\052'
961 #define CHAR_PLUS                   '\053'
962 #define CHAR_COMMA                  '\054'
963 #define CHAR_MINUS                  '\055'
964 #define CHAR_DOT                    '\056'
965 #define CHAR_SLASH                  '\057'
966 #define CHAR_0                      '\060'
967 #define CHAR_1                      '\061'
968 #define CHAR_2                      '\062'
969 #define CHAR_3                      '\063'
970 #define CHAR_4                      '\064'
971 #define CHAR_5                      '\065'
972 #define CHAR_6                      '\066'
973 #define CHAR_7                      '\067'
974 #define CHAR_8                      '\070'
975 #define CHAR_9                      '\071'
976 #define CHAR_COLON                  '\072'
977 #define CHAR_SEMICOLON              '\073'
978 #define CHAR_LESS_THAN_SIGN         '\074'
979 #define CHAR_EQUALS_SIGN            '\075'
980 #define CHAR_GREATER_THAN_SIGN      '\076'
981 #define CHAR_QUESTION_MARK          '\077'
982 #define CHAR_COMMERCIAL_AT          '\100'
983 #define CHAR_A                      '\101'
984 #define CHAR_B                      '\102'
985 #define CHAR_C                      '\103'
986 #define CHAR_D                      '\104'
987 #define CHAR_E                      '\105'
988 #define CHAR_F                      '\106'
989 #define CHAR_G                      '\107'
990 #define CHAR_H                      '\110'
991 #define CHAR_I                      '\111'
992 #define CHAR_J                      '\112'
993 #define CHAR_K                      '\113'
994 #define CHAR_L                      '\114'
995 #define CHAR_M                      '\115'
996 #define CHAR_N                      '\116'
997 #define CHAR_O                      '\117'
998 #define CHAR_P                      '\120'
999 #define CHAR_Q                      '\121'
1000 #define CHAR_R                      '\122'
1001 #define CHAR_S                      '\123'
1002 #define CHAR_T                      '\124'
1003 #define CHAR_U                      '\125'
1004 #define CHAR_V                      '\126'
1005 #define CHAR_W                      '\127'
1006 #define CHAR_X                      '\130'
1007 #define CHAR_Y                      '\131'
1008 #define CHAR_Z                      '\132'
1009 #define CHAR_LEFT_SQUARE_BRACKET    '\133'
1010 #define CHAR_BACKSLASH              '\134'
1011 #define CHAR_RIGHT_SQUARE_BRACKET   '\135'
1012 #define CHAR_CIRCUMFLEX_ACCENT      '\136'
1013 #define CHAR_UNDERSCORE             '\137'
1014 #define CHAR_GRAVE_ACCENT           '\140'
1015 #define CHAR_a                      '\141'
1016 #define CHAR_b                      '\142'
1017 #define CHAR_c                      '\143'
1018 #define CHAR_d                      '\144'
1019 #define CHAR_e                      '\145'
1020 #define CHAR_f                      '\146'
1021 #define CHAR_g                      '\147'
1022 #define CHAR_h                      '\150'
1023 #define CHAR_i                      '\151'
1024 #define CHAR_j                      '\152'
1025 #define CHAR_k                      '\153'
1026 #define CHAR_l                      '\154'
1027 #define CHAR_m                      '\155'
1028 #define CHAR_n                      '\156'
1029 #define CHAR_o                      '\157'
1030 #define CHAR_p                      '\160'
1031 #define CHAR_q                      '\161'
1032 #define CHAR_r                      '\162'
1033 #define CHAR_s                      '\163'
1034 #define CHAR_t                      '\164'
1035 #define CHAR_u                      '\165'
1036 #define CHAR_v                      '\166'
1037 #define CHAR_w                      '\167'
1038 #define CHAR_x                      '\170'
1039 #define CHAR_y                      '\171'
1040 #define CHAR_z                      '\172'
1041 #define CHAR_LEFT_CURLY_BRACKET     '\173'
1042 #define CHAR_VERTICAL_LINE          '\174'
1043 #define CHAR_RIGHT_CURLY_BRACKET    '\175'
1044 #define CHAR_TILDE                  '\176'
1045 #define CHAR_NBSP                   ((unsigned char)'\xa0')
1046 
1047 #define STR_HT                      "\011"
1048 #define STR_VT                      "\013"
1049 #define STR_FF                      "\014"
1050 #define STR_CR                      "\015"
1051 #define STR_NL                      "\012"
1052 #define STR_BS                      "\010"
1053 #define STR_BEL                     "\007"
1054 #define STR_ESC                     "\033"
1055 #define STR_DEL                     "\177"
1056 
1057 #define STR_SPACE                   "\040"
1058 #define STR_EXCLAMATION_MARK        "\041"
1059 #define STR_QUOTATION_MARK          "\042"
1060 #define STR_NUMBER_SIGN             "\043"
1061 #define STR_DOLLAR_SIGN             "\044"
1062 #define STR_PERCENT_SIGN            "\045"
1063 #define STR_AMPERSAND               "\046"
1064 #define STR_APOSTROPHE              "\047"
1065 #define STR_LEFT_PARENTHESIS        "\050"
1066 #define STR_RIGHT_PARENTHESIS       "\051"
1067 #define STR_ASTERISK                "\052"
1068 #define STR_PLUS                    "\053"
1069 #define STR_COMMA                   "\054"
1070 #define STR_MINUS                   "\055"
1071 #define STR_DOT                     "\056"
1072 #define STR_SLASH                   "\057"
1073 #define STR_0                       "\060"
1074 #define STR_1                       "\061"
1075 #define STR_2                       "\062"
1076 #define STR_3                       "\063"
1077 #define STR_4                       "\064"
1078 #define STR_5                       "\065"
1079 #define STR_6                       "\066"
1080 #define STR_7                       "\067"
1081 #define STR_8                       "\070"
1082 #define STR_9                       "\071"
1083 #define STR_COLON                   "\072"
1084 #define STR_SEMICOLON               "\073"
1085 #define STR_LESS_THAN_SIGN          "\074"
1086 #define STR_EQUALS_SIGN             "\075"
1087 #define STR_GREATER_THAN_SIGN       "\076"
1088 #define STR_QUESTION_MARK           "\077"
1089 #define STR_COMMERCIAL_AT           "\100"
1090 #define STR_A                       "\101"
1091 #define STR_B                       "\102"
1092 #define STR_C                       "\103"
1093 #define STR_D                       "\104"
1094 #define STR_E                       "\105"
1095 #define STR_F                       "\106"
1096 #define STR_G                       "\107"
1097 #define STR_H                       "\110"
1098 #define STR_I                       "\111"
1099 #define STR_J                       "\112"
1100 #define STR_K                       "\113"
1101 #define STR_L                       "\114"
1102 #define STR_M                       "\115"
1103 #define STR_N                       "\116"
1104 #define STR_O                       "\117"
1105 #define STR_P                       "\120"
1106 #define STR_Q                       "\121"
1107 #define STR_R                       "\122"
1108 #define STR_S                       "\123"
1109 #define STR_T                       "\124"
1110 #define STR_U                       "\125"
1111 #define STR_V                       "\126"
1112 #define STR_W                       "\127"
1113 #define STR_X                       "\130"
1114 #define STR_Y                       "\131"
1115 #define STR_Z                       "\132"
1116 #define STR_LEFT_SQUARE_BRACKET     "\133"
1117 #define STR_BACKSLASH               "\134"
1118 #define STR_RIGHT_SQUARE_BRACKET    "\135"
1119 #define STR_CIRCUMFLEX_ACCENT       "\136"
1120 #define STR_UNDERSCORE              "\137"
1121 #define STR_GRAVE_ACCENT            "\140"
1122 #define STR_a                       "\141"
1123 #define STR_b                       "\142"
1124 #define STR_c                       "\143"
1125 #define STR_d                       "\144"
1126 #define STR_e                       "\145"
1127 #define STR_f                       "\146"
1128 #define STR_g                       "\147"
1129 #define STR_h                       "\150"
1130 #define STR_i                       "\151"
1131 #define STR_j                       "\152"
1132 #define STR_k                       "\153"
1133 #define STR_l                       "\154"
1134 #define STR_m                       "\155"
1135 #define STR_n                       "\156"
1136 #define STR_o                       "\157"
1137 #define STR_p                       "\160"
1138 #define STR_q                       "\161"
1139 #define STR_r                       "\162"
1140 #define STR_s                       "\163"
1141 #define STR_t                       "\164"
1142 #define STR_u                       "\165"
1143 #define STR_v                       "\166"
1144 #define STR_w                       "\167"
1145 #define STR_x                       "\170"
1146 #define STR_y                       "\171"
1147 #define STR_z                       "\172"
1148 #define STR_LEFT_CURLY_BRACKET      "\173"
1149 #define STR_VERTICAL_LINE           "\174"
1150 #define STR_RIGHT_CURLY_BRACKET     "\175"
1151 #define STR_TILDE                   "\176"
1152 
1153 #define STRING_ACCEPT0              STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1154 #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1155 #define STRING_F0                   STR_F "\0"
1156 #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"
1157 #define STRING_MARK0                STR_M STR_A STR_R STR_K "\0"
1158 #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"
1159 #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"
1160 #define STRING_THEN                 STR_T STR_H STR_E STR_N
1161 
1162 #define STRING_alpha0               STR_a STR_l STR_p STR_h STR_a "\0"
1163 #define STRING_lower0               STR_l STR_o STR_w STR_e STR_r "\0"
1164 #define STRING_upper0               STR_u STR_p STR_p STR_e STR_r "\0"
1165 #define STRING_alnum0               STR_a STR_l STR_n STR_u STR_m "\0"
1166 #define STRING_ascii0               STR_a STR_s STR_c STR_i STR_i "\0"
1167 #define STRING_blank0               STR_b STR_l STR_a STR_n STR_k "\0"
1168 #define STRING_cntrl0               STR_c STR_n STR_t STR_r STR_l "\0"
1169 #define STRING_digit0               STR_d STR_i STR_g STR_i STR_t "\0"
1170 #define STRING_graph0               STR_g STR_r STR_a STR_p STR_h "\0"
1171 #define STRING_print0               STR_p STR_r STR_i STR_n STR_t "\0"
1172 #define STRING_punct0               STR_p STR_u STR_n STR_c STR_t "\0"
1173 #define STRING_space0               STR_s STR_p STR_a STR_c STR_e "\0"
1174 #define STRING_word0                STR_w STR_o STR_r STR_d       "\0"
1175 #define STRING_xdigit               STR_x STR_d STR_i STR_g STR_i STR_t
1176 
1177 #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E
1178 #define STRING_VERSION              STR_V STR_E STR_R STR_S STR_I STR_O STR_N
1179 #define STRING_WEIRD_STARTWORD      STR_LEFT_SQUARE_BRACKET STR_COLON STR_LESS_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
1180 #define STRING_WEIRD_ENDWORD        STR_LEFT_SQUARE_BRACKET STR_COLON STR_GREATER_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
1181 
1182 #define STRING_CR_RIGHTPAR                STR_C STR_R STR_RIGHT_PARENTHESIS
1183 #define STRING_LF_RIGHTPAR                STR_L STR_F STR_RIGHT_PARENTHESIS
1184 #define STRING_CRLF_RIGHTPAR              STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1185 #define STRING_ANY_RIGHTPAR               STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1186 #define STRING_ANYCRLF_RIGHTPAR           STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1187 #define STRING_NUL_RIGHTPAR               STR_N STR_U STR_L STR_RIGHT_PARENTHESIS
1188 #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
1189 #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
1190 #define STRING_UTF8_RIGHTPAR              STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1191 #define STRING_UTF16_RIGHTPAR             STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1192 #define STRING_UTF32_RIGHTPAR             STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1193 #define STRING_UTF_RIGHTPAR               STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1194 #define STRING_UCP_RIGHTPAR               STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1195 #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
1196 #define STRING_NO_DOTSTAR_ANCHOR_RIGHTPAR STR_N STR_O STR_UNDERSCORE STR_D STR_O STR_T STR_S STR_T STR_A STR_R STR_UNDERSCORE STR_A STR_N STR_C STR_H STR_O STR_R STR_RIGHT_PARENTHESIS
1197 #define STRING_NO_JIT_RIGHTPAR            STR_N STR_O STR_UNDERSCORE STR_J STR_I STR_T STR_RIGHT_PARENTHESIS
1198 #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
1199 #define STRING_NOTEMPTY_RIGHTPAR          STR_N STR_O STR_T STR_E STR_M STR_P STR_T STR_Y STR_RIGHT_PARENTHESIS
1200 #define STRING_NOTEMPTY_ATSTART_RIGHTPAR  STR_N STR_O STR_T STR_E STR_M STR_P STR_T STR_Y STR_UNDERSCORE STR_A STR_T STR_S STR_T STR_A STR_R STR_T STR_RIGHT_PARENTHESIS
1201 #define STRING_LIMIT_HEAP_EQ              STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_H STR_E STR_A STR_P STR_EQUALS_SIGN
1202 #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
1203 #define STRING_LIMIT_DEPTH_EQ             STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_D STR_E STR_P STR_T STR_H STR_EQUALS_SIGN
1204 #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
1205 #define STRING_MARK                       STR_M STR_A STR_R STR_K
1206 
1207 #endif  /* SUPPORT_UNICODE */
1208 
1209 /* -------------------- End of character and string names -------------------*/
1210 
1211 /* -------------------- Definitions for compiled patterns -------------------*/
1212 
1213 /* Codes for different types of Unicode property */
1214 
1215 #define PT_ANY        0    /* Any property - matches all chars */
1216 #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */
1217 #define PT_GC         2    /* Specified general characteristic (e.g. L) */
1218 #define PT_PC         3    /* Specified particular characteristic (e.g. Lu) */
1219 #define PT_SC         4    /* Script (e.g. Han) */
1220 #define PT_ALNUM      5    /* Alphanumeric - the union of L and N */
1221 #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
1222 #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
1223 #define PT_WORD       8    /* Word - L plus N plus underscore */
1224 #define PT_CLIST      9    /* Pseudo-property: match character list */
1225 #define PT_UCNC      10    /* Universal Character nameable character */
1226 #define PT_TABSIZE   11    /* Size of square table for autopossessify tests */
1227 
1228 /* The following special properties are used only in XCLASS items, when POSIX
1229 classes are specified and PCRE2_UCP is set - in other words, for Unicode
1230 handling of these classes. They are not available via the \p or \P escapes like
1231 those in the above list, and so they do not take part in the autopossessifying
1232 table. */
1233 
1234 #define PT_PXGRAPH   11    /* [:graph:] - characters that mark the paper */
1235 #define PT_PXPRINT   12    /* [:print:] - [:graph:] plus non-control spaces */
1236 #define PT_PXPUNCT   13    /* [:punct:] - punctuation characters */
1237 
1238 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1239 contain characters with values greater than 255. */
1240 
1241 #define XCL_NOT       0x01    /* Flag: this is a negative class */
1242 #define XCL_MAP       0x02    /* Flag: a 32-byte map is present */
1243 #define XCL_HASPROP   0x04    /* Flag: property checks are present. */
1244 
1245 #define XCL_END       0    /* Marks end of individual items */
1246 #define XCL_SINGLE    1    /* Single item (one multibyte char) follows */
1247 #define XCL_RANGE     2    /* A range (two multibyte chars) follows */
1248 #define XCL_PROP      3    /* Unicode property (2-byte property code follows) */
1249 #define XCL_NOTPROP   4    /* Unicode inverted property (ditto) */
1250 
1251 /* These are escaped items that aren't just an encoding of a particular data
1252 value such as \n. They must have non-zero values, as check_escape() returns 0
1253 for a data character. In the escapes[] table in pcre2_compile.c their values
1254 are negated in order to distinguish them from data values.
1255 
1256 They must appear here in the same order as in the opcode definitions below, up
1257 to ESC_z. There's a dummy for OP_ALLANY because it corresponds to "." in DOTALL
1258 mode rather than an escape sequence. It is also used for [^] in JavaScript
1259 compatibility mode, and for \C in non-utf mode. In non-DOTALL mode, "." behaves
1260 like \N.
1261 
1262 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1263 check_escape(). There are tests in the code for an escape greater than ESC_b
1264 and less than ESC_Z to detect the types that may be repeated. These are the
1265 types that consume characters. If any new escapes are put in between that don't
1266 consume a character, that code will have to change. */
1267 
1268 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1269        ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1270        ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1271        ESC_E, ESC_Q, ESC_g, ESC_k };
1272 
1273 
1274 /********************** Opcode definitions ******************/
1275 
1276 /****** NOTE NOTE NOTE ******
1277 
1278 Starting from 1 (i.e. after OP_END), the values up to OP_EOD must correspond in
1279 order to the list of escapes immediately above. Furthermore, values up to
1280 OP_DOLLM must not be changed without adjusting the table called autoposstab in
1281 pcre2_auto_possess.c
1282 
1283 Whenever this list is updated, the two macro definitions that follow must be
1284 updated to match. The possessification table called "opcode_possessify" in
1285 pcre2_compile.c must also be updated, and also the tables called "coptable"
1286 and "poptable" in pcre2_dfa_match.c.
1287 
1288 ****** NOTE NOTE NOTE ******/
1289 
1290 
1291 /* The values between FIRST_AUTOTAB_OP and LAST_AUTOTAB_RIGHT_OP, inclusive,
1292 are used in a table for deciding whether a repeated character type can be
1293 auto-possessified. */
1294 
1295 #define FIRST_AUTOTAB_OP       OP_NOT_DIGIT
1296 #define LAST_AUTOTAB_LEFT_OP   OP_EXTUNI
1297 #define LAST_AUTOTAB_RIGHT_OP  OP_DOLLM
1298 
1299 enum {
1300   OP_END,            /* 0 End of pattern */
1301 
1302   /* Values corresponding to backslashed metacharacters */
1303 
1304   OP_SOD,            /* 1 Start of data: \A */
1305   OP_SOM,            /* 2 Start of match (subject + offset): \G */
1306   OP_SET_SOM,        /* 3 Set start of match (\K) */
1307   OP_NOT_WORD_BOUNDARY,  /*  4 \B */
1308   OP_WORD_BOUNDARY,      /*  5 \b */
1309   OP_NOT_DIGIT,          /*  6 \D */
1310   OP_DIGIT,              /*  7 \d */
1311   OP_NOT_WHITESPACE,     /*  8 \S */
1312   OP_WHITESPACE,         /*  9 \s */
1313   OP_NOT_WORDCHAR,       /* 10 \W */
1314   OP_WORDCHAR,           /* 11 \w */
1315 
1316   OP_ANY,            /* 12 Match any character except newline (\N) */
1317   OP_ALLANY,         /* 13 Match any character */
1318   OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1319   OP_NOTPROP,        /* 15 \P (not Unicode property) */
1320   OP_PROP,           /* 16 \p (Unicode property) */
1321   OP_ANYNL,          /* 17 \R (any newline sequence) */
1322   OP_NOT_HSPACE,     /* 18 \H (not horizontal whitespace) */
1323   OP_HSPACE,         /* 19 \h (horizontal whitespace) */
1324   OP_NOT_VSPACE,     /* 20 \V (not vertical whitespace) */
1325   OP_VSPACE,         /* 21 \v (vertical whitespace) */
1326   OP_EXTUNI,         /* 22 \X (extended Unicode sequence */
1327   OP_EODN,           /* 23 End of data or \n at end of data (\Z) */
1328   OP_EOD,            /* 24 End of data (\z) */
1329 
1330   /* Line end assertions */
1331 
1332   OP_DOLL,           /* 25 End of line - not multiline */
1333   OP_DOLLM,          /* 26 End of line - multiline */
1334   OP_CIRC,           /* 27 Start of line - not multiline */
1335   OP_CIRCM,          /* 28 Start of line - multiline */
1336 
1337   /* Single characters; caseful must precede the caseless ones, and these
1338   must remain in this order, and adjacent. */
1339 
1340   OP_CHAR,           /* 29 Match one character, casefully */
1341   OP_CHARI,          /* 30 Match one character, caselessly */
1342   OP_NOT,            /* 31 Match one character, not the given one, casefully */
1343   OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
1344 
1345   /* The following sets of 13 opcodes must always be kept in step because
1346   the offset from the first one is used to generate the others. */
1347 
1348   /* Repeated characters; caseful must precede the caseless ones */
1349 
1350   OP_STAR,           /* 33 The maximizing and minimizing versions of */
1351   OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
1352   OP_PLUS,           /* 35 the minimizing one second. */
1353   OP_MINPLUS,        /* 36 */
1354   OP_QUERY,          /* 37 */
1355   OP_MINQUERY,       /* 38 */
1356 
1357   OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
1358   OP_MINUPTO,        /* 40 */
1359   OP_EXACT,          /* 41 Exactly n matches */
1360 
1361   OP_POSSTAR,        /* 42 Possessified star, caseful */
1362   OP_POSPLUS,        /* 43 Possessified plus, caseful */
1363   OP_POSQUERY,       /* 44 Posesssified query, caseful */
1364   OP_POSUPTO,        /* 45 Possessified upto, caseful */
1365 
1366   /* Repeated characters; caseless must follow the caseful ones */
1367 
1368   OP_STARI,          /* 46 */
1369   OP_MINSTARI,       /* 47 */
1370   OP_PLUSI,          /* 48 */
1371   OP_MINPLUSI,       /* 49 */
1372   OP_QUERYI,         /* 50 */
1373   OP_MINQUERYI,      /* 51 */
1374 
1375   OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
1376   OP_MINUPTOI,       /* 53 */
1377   OP_EXACTI,         /* 54 */
1378 
1379   OP_POSSTARI,       /* 55 Possessified star, caseless */
1380   OP_POSPLUSI,       /* 56 Possessified plus, caseless */
1381   OP_POSQUERYI,      /* 57 Posesssified query, caseless */
1382   OP_POSUPTOI,       /* 58 Possessified upto, caseless */
1383 
1384   /* The negated ones must follow the non-negated ones, and match them */
1385   /* Negated repeated character, caseful; must precede the caseless ones */
1386 
1387   OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
1388   OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
1389   OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
1390   OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
1391   OP_NOTQUERY,       /* 63 */
1392   OP_NOTMINQUERY,    /* 64 */
1393 
1394   OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
1395   OP_NOTMINUPTO,     /* 66 */
1396   OP_NOTEXACT,       /* 67 Exactly n matches */
1397 
1398   OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
1399   OP_NOTPOSPLUS,     /* 69 */
1400   OP_NOTPOSQUERY,    /* 70 */
1401   OP_NOTPOSUPTO,     /* 71 */
1402 
1403   /* Negated repeated character, caseless; must follow the caseful ones */
1404 
1405   OP_NOTSTARI,       /* 72 */
1406   OP_NOTMINSTARI,    /* 73 */
1407   OP_NOTPLUSI,       /* 74 */
1408   OP_NOTMINPLUSI,    /* 75 */
1409   OP_NOTQUERYI,      /* 76 */
1410   OP_NOTMINQUERYI,   /* 77 */
1411 
1412   OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
1413   OP_NOTMINUPTOI,    /* 79 */
1414   OP_NOTEXACTI,      /* 80 Exactly n matches */
1415 
1416   OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
1417   OP_NOTPOSPLUSI,    /* 82 */
1418   OP_NOTPOSQUERYI,   /* 83 */
1419   OP_NOTPOSUPTOI,    /* 84 */
1420 
1421   /* Character types */
1422 
1423   OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
1424   OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
1425   OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
1426   OP_TYPEMINPLUS,    /* 88 be in exactly the same order as those above. */
1427   OP_TYPEQUERY,      /* 89 */
1428   OP_TYPEMINQUERY,   /* 90 */
1429 
1430   OP_TYPEUPTO,       /* 91 From 0 to n matches */
1431   OP_TYPEMINUPTO,    /* 92 */
1432   OP_TYPEEXACT,      /* 93 Exactly n matches */
1433 
1434   OP_TYPEPOSSTAR,    /* 94 Possessified versions */
1435   OP_TYPEPOSPLUS,    /* 95 */
1436   OP_TYPEPOSQUERY,   /* 96 */
1437   OP_TYPEPOSUPTO,    /* 97 */
1438 
1439   /* These are used for character classes and back references; only the
1440   first six are the same as the sets above. */
1441 
1442   OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
1443   OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
1444   OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
1445   OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
1446   OP_CRQUERY,        /* 102 */
1447   OP_CRMINQUERY,     /* 103 */
1448 
1449   OP_CRRANGE,        /* 104 These are different to the three sets above. */
1450   OP_CRMINRANGE,     /* 105 */
1451 
1452   OP_CRPOSSTAR,      /* 106 Possessified versions */
1453   OP_CRPOSPLUS,      /* 107 */
1454   OP_CRPOSQUERY,     /* 108 */
1455   OP_CRPOSRANGE,     /* 109 */
1456 
1457   /* End of quantifier opcodes */
1458 
1459   OP_CLASS,          /* 110 Match a character class, chars < 256 only */
1460   OP_NCLASS,         /* 111 Same, but the bitmap was created from a negative
1461                               class - the difference is relevant only when a
1462                               character > 255 is encountered. */
1463   OP_XCLASS,         /* 112 Extended class for handling > 255 chars within the
1464                               class. This does both positive and negative. */
1465   OP_REF,            /* 113 Match a back reference, casefully */
1466   OP_REFI,           /* 114 Match a back reference, caselessly */
1467   OP_DNREF,          /* 115 Match a duplicate name backref, casefully */
1468   OP_DNREFI,         /* 116 Match a duplicate name backref, caselessly */
1469   OP_RECURSE,        /* 117 Match a numbered subpattern (possibly recursive) */
1470   OP_CALLOUT,        /* 118 Call out to external function if provided */
1471   OP_CALLOUT_STR,    /* 119 Call out with string argument */
1472 
1473   OP_ALT,            /* 120 Start of alternation */
1474   OP_KET,            /* 121 End of group that doesn't have an unbounded repeat */
1475   OP_KETRMAX,        /* 122 These two must remain together and in this */
1476   OP_KETRMIN,        /* 123 order. They are for groups the repeat for ever. */
1477   OP_KETRPOS,        /* 124 Possessive unlimited repeat. */
1478 
1479   /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
1480   asserts must remain in order. */
1481 
1482   OP_REVERSE,        /* 125 Move pointer back - used in lookbehind assertions */
1483   OP_ASSERT,         /* 126 Positive lookahead */
1484   OP_ASSERT_NOT,     /* 127 Negative lookahead */
1485   OP_ASSERTBACK,     /* 128 Positive lookbehind */
1486   OP_ASSERTBACK_NOT, /* 129 Negative lookbehind */
1487 
1488   /* ONCE, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately after the
1489   assertions, with ONCE first, as there's a test for >= ONCE for a subpattern
1490   that isn't an assertion. The POS versions must immediately follow the non-POS
1491   versions in each case. */
1492 
1493   OP_ONCE,           /* 130 Atomic group, contains captures */
1494   OP_BRA,            /* 131 Start of non-capturing bracket */
1495   OP_BRAPOS,         /* 132 Ditto, with unlimited, possessive repeat */
1496   OP_CBRA,           /* 133 Start of capturing bracket */
1497   OP_CBRAPOS,        /* 134 Ditto, with unlimited, possessive repeat */
1498   OP_COND,           /* 135 Conditional group */
1499 
1500   /* These five must follow the previous five, in the same order. There's a
1501   check for >= SBRA to distinguish the two sets. */
1502 
1503   OP_SBRA,           /* 136 Start of non-capturing bracket, check empty  */
1504   OP_SBRAPOS,        /* 137 Ditto, with unlimited, possessive repeat */
1505   OP_SCBRA,          /* 138 Start of capturing bracket, check empty */
1506   OP_SCBRAPOS,       /* 139 Ditto, with unlimited, possessive repeat */
1507   OP_SCOND,          /* 140 Conditional group, check empty */
1508 
1509   /* The next two pairs must (respectively) be kept together. */
1510 
1511   OP_CREF,           /* 141 Used to hold a capture number as condition */
1512   OP_DNCREF,         /* 142 Used to point to duplicate names as a condition */
1513   OP_RREF,           /* 143 Used to hold a recursion number as condition */
1514   OP_DNRREF,         /* 144 Used to point to duplicate names as a condition */
1515   OP_FALSE,          /* 145 Always false (used by DEFINE and VERSION) */
1516   OP_TRUE,           /* 146 Always true (used by VERSION) */
1517 
1518   OP_BRAZERO,        /* 147 These two must remain together and in this */
1519   OP_BRAMINZERO,     /* 148 order. */
1520   OP_BRAPOSZERO,     /* 149 */
1521 
1522   /* These are backtracking control verbs */
1523 
1524   OP_MARK,           /* 150 always has an argument */
1525   OP_PRUNE,          /* 151 */
1526   OP_PRUNE_ARG,      /* 152 same, but with argument */
1527   OP_SKIP,           /* 153 */
1528   OP_SKIP_ARG,       /* 154 same, but with argument */
1529   OP_THEN,           /* 155 */
1530   OP_THEN_ARG,       /* 156 same, but with argument */
1531   OP_COMMIT,         /* 157 */
1532   OP_COMMIT_ARG,     /* 158 same, but with argument */
1533 
1534   /* These are forced failure and success verbs. FAIL and ACCEPT do accept an
1535   argument, but these cases can be compiled as, for example, (*MARK:X)(*FAIL)
1536   without the need for a special opcode. */
1537 
1538   OP_FAIL,           /* 159 */
1539   OP_ACCEPT,         /* 160 */
1540   OP_ASSERT_ACCEPT,  /* 161 Used inside assertions */
1541   OP_CLOSE,          /* 162 Used before OP_ACCEPT to close open captures */
1542 
1543   /* This is used to skip a subpattern with a {0} quantifier */
1544 
1545   OP_SKIPZERO,       /* 163 */
1546 
1547   /* This is used to identify a DEFINE group during compilation so that it can
1548   be checked for having only one branch. It is changed to OP_FALSE before
1549   compilation finishes. */
1550 
1551   OP_DEFINE,         /* 164 */
1552 
1553   /* This is not an opcode, but is used to check that tables indexed by opcode
1554   are the correct length, in order to catch updating errors - there have been
1555   some in the past. */
1556 
1557   OP_TABLE_LENGTH
1558 
1559 };
1560 
1561 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1562 definitions that follow must also be updated to match. There are also tables
1563 called "opcode_possessify" in pcre2_compile.c and "coptable" and "poptable" in
1564 pcre2_dfa_exec.c that must be updated. */
1565 
1566 
1567 /* This macro defines textual names for all the opcodes. These are used only
1568 for debugging, and some of them are only partial names. The macro is referenced
1569 only in pcre2_printint.c, which fills out the full names in many cases (and in
1570 some cases doesn't actually use these names at all). */
1571 
1572 #define OP_NAME_LIST \
1573   "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
1574   "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
1575   "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
1576   "extuni",  "\\Z", "\\z",                                        \
1577   "$", "$", "^", "^", "char", "chari", "not", "noti",             \
1578   "*", "*?", "+", "+?", "?", "??",                                \
1579   "{", "{", "{",                                                  \
1580   "*+","++", "?+", "{",                                           \
1581   "*", "*?", "+", "+?", "?", "??",                                \
1582   "{", "{", "{",                                                  \
1583   "*+","++", "?+", "{",                                           \
1584   "*", "*?", "+", "+?", "?", "??",                                \
1585   "{", "{", "{",                                                  \
1586   "*+","++", "?+", "{",                                           \
1587   "*", "*?", "+", "+?", "?", "??",                                \
1588   "{", "{", "{",                                                  \
1589   "*+","++", "?+", "{",                                           \
1590   "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
1591   "*+","++", "?+", "{",                                           \
1592   "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
1593   "*+","++", "?+", "{",                                           \
1594   "class", "nclass", "xclass", "Ref", "Refi", "DnRef", "DnRefi",  \
1595   "Recurse", "Callout", "CalloutStr",                             \
1596   "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
1597   "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \
1598   "Once",                                                         \
1599   "Bra", "BraPos", "CBra", "CBraPos",                             \
1600   "Cond",                                                         \
1601   "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
1602   "SCond",                                                        \
1603   "Cond ref", "Cond dnref", "Cond rec", "Cond dnrec",             \
1604   "Cond false", "Cond true",                                      \
1605   "Brazero", "Braminzero", "Braposzero",                          \
1606   "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
1607   "*THEN", "*THEN", "*COMMIT", "*COMMIT", "*FAIL",                \
1608   "*ACCEPT", "*ASSERT_ACCEPT",                                    \
1609   "Close", "Skip zero", "Define"
1610 
1611 
1612 /* This macro defines the length of fixed length operations in the compiled
1613 regex. The lengths are used when searching for specific things, and also in the
1614 debugging printing of a compiled regex. We use a macro so that it can be
1615 defined close to the definitions of the opcodes themselves.
1616 
1617 As things have been extended, some of these are no longer fixed lenths, but are
1618 minima instead. For example, the length of a single-character repeat may vary
1619 in UTF-8 mode. The code that uses this table must know about such things. */
1620 
1621 #define OP_LENGTHS \
1622   1,                             /* End                                    */ \
1623   1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
1624   1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
1625   1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
1626   3, 3,                          /* \P, \p                                 */ \
1627   1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
1628   1,                             /* \X                                     */ \
1629   1, 1, 1, 1, 1, 1,              /* \Z, \z, $, $M ^, ^M                    */ \
1630   2,                             /* Char  - the minimum length             */ \
1631   2,                             /* Chari  - the minimum length            */ \
1632   2,                             /* not                                    */ \
1633   2,                             /* noti                                   */ \
1634   /* Positive single-char repeats                             ** These are */ \
1635   2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
1636   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto, minupto             ** mode      */ \
1637   2+IMM2_SIZE,                   /* exact                                  */ \
1638   2, 2, 2, 2+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */ \
1639   2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
1640   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto I, minupto I                      */ \
1641   2+IMM2_SIZE,                   /* exact I                                */ \
1642   2, 2, 2, 2+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */ \
1643   /* Negative single-char repeats - only for chars < 256                   */ \
1644   2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
1645   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto, minupto                      */ \
1646   2+IMM2_SIZE,                   /* NOT exact                              */ \
1647   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *, +, ?, upto           */ \
1648   2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
1649   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto I, minupto I                  */ \
1650   2+IMM2_SIZE,                   /* NOT exact I                            */ \
1651   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *I, +I, ?I, upto I      */ \
1652   /* Positive type repeats                                                 */ \
1653   2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
1654   2+IMM2_SIZE, 2+IMM2_SIZE,      /* Type upto, minupto                     */ \
1655   2+IMM2_SIZE,                   /* Type exact                             */ \
1656   2, 2, 2, 2+IMM2_SIZE,          /* Possessive *+, ++, ?+, upto+           */ \
1657   /* Character class & ref repeats                                         */ \
1658   1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
1659   1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
1660   1, 1, 1, 1+2*IMM2_SIZE,        /* Possessive *+, ++, ?+, CRPOSRANGE      */ \
1661   1+(32/sizeof(PCRE2_UCHAR)),    /* CLASS                                  */ \
1662   1+(32/sizeof(PCRE2_UCHAR)),    /* NCLASS                                 */ \
1663   0,                             /* XCLASS - variable length               */ \
1664   1+IMM2_SIZE,                   /* REF                                    */ \
1665   1+IMM2_SIZE,                   /* REFI                                   */ \
1666   1+2*IMM2_SIZE,                 /* DNREF                                  */ \
1667   1+2*IMM2_SIZE,                 /* DNREFI                                 */ \
1668   1+LINK_SIZE,                   /* RECURSE                                */ \
1669   1+2*LINK_SIZE+1,               /* CALLOUT                                */ \
1670   0,                             /* CALLOUT_STR - variable length          */ \
1671   1+LINK_SIZE,                   /* Alt                                    */ \
1672   1+LINK_SIZE,                   /* Ket                                    */ \
1673   1+LINK_SIZE,                   /* KetRmax                                */ \
1674   1+LINK_SIZE,                   /* KetRmin                                */ \
1675   1+LINK_SIZE,                   /* KetRpos                                */ \
1676   1+LINK_SIZE,                   /* Reverse                                */ \
1677   1+LINK_SIZE,                   /* Assert                                 */ \
1678   1+LINK_SIZE,                   /* Assert not                             */ \
1679   1+LINK_SIZE,                   /* Assert behind                          */ \
1680   1+LINK_SIZE,                   /* Assert behind not                      */ \
1681   1+LINK_SIZE,                   /* ONCE                                   */ \
1682   1+LINK_SIZE,                   /* BRA                                    */ \
1683   1+LINK_SIZE,                   /* BRAPOS                                 */ \
1684   1+LINK_SIZE+IMM2_SIZE,         /* CBRA                                   */ \
1685   1+LINK_SIZE+IMM2_SIZE,         /* CBRAPOS                                */ \
1686   1+LINK_SIZE,                   /* COND                                   */ \
1687   1+LINK_SIZE,                   /* SBRA                                   */ \
1688   1+LINK_SIZE,                   /* SBRAPOS                                */ \
1689   1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
1690   1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
1691   1+LINK_SIZE,                   /* SCOND                                  */ \
1692   1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* CREF, DNCREF                           */ \
1693   1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* RREF, DNRREF                           */ \
1694   1, 1,                          /* FALSE, TRUE                            */ \
1695   1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
1696   3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
1697   1, 3,                          /* SKIP, SKIP_ARG                         */ \
1698   1, 3,                          /* THEN, THEN_ARG                         */ \
1699   1, 3,                          /* COMMIT, COMMIT_ARG                     */ \
1700   1, 1, 1,                       /* FAIL, ACCEPT, ASSERT_ACCEPT            */ \
1701   1+IMM2_SIZE, 1,                /* CLOSE, SKIPZERO                        */ \
1702   1                              /* DEFINE                                 */
1703 
1704 /* A magic value for OP_RREF to indicate the "any recursion" condition. */
1705 
1706 #define RREF_ANY  0xffff
1707 
1708 
1709 /* ---------- Private structures that are mode-independent. ---------- */
1710 
1711 /* Structure to hold data for custom memory management. */
1712 
1713 typedef struct pcre2_memctl {
1714   void *    (*malloc)(size_t, void *);
1715   void      (*free)(void *, void *);
1716   void      *memory_data;
1717 } pcre2_memctl;
1718 
1719 /* Structure for building a chain of open capturing subpatterns during
1720 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
1721 encountered. This is also used to identify subpatterns that contain recursive
1722 back references to themselves, so that they can be made atomic. */
1723 
1724 typedef struct open_capitem {
1725   struct open_capitem *next;    /* Chain link */
1726   uint16_t number;              /* Capture number */
1727   uint16_t flag;                /* Set TRUE if recursive back ref */
1728   uint16_t assert_depth;        /* Assertion depth when opened */
1729 } open_capitem;
1730 
1731 /* Layout of the UCP type table that translates property names into types and
1732 codes. Each entry used to point directly to a name, but to reduce the number of
1733 relocations in shared libraries, it now has an offset into a single string
1734 instead. */
1735 
1736 typedef struct {
1737   uint16_t name_offset;
1738   uint16_t type;
1739   uint16_t value;
1740 } ucp_type_table;
1741 
1742 /* Unicode character database (UCD) record format */
1743 
1744 typedef struct {
1745   uint8_t script;     /* ucp_Arabic, etc. */
1746   uint8_t chartype;   /* ucp_Cc, etc. (general categories) */
1747   uint8_t gbprop;     /* ucp_gbControl, etc. (grapheme break property) */
1748   uint8_t caseset;    /* offset to multichar other cases or zero */
1749   int32_t other_case; /* offset to other case, or zero if none */
1750 } ucd_record;
1751 
1752 /* UCD access macros */
1753 
1754 #define UCD_BLOCK_SIZE 128
1755 #define REAL_GET_UCD(ch) (PRIV(ucd_records) + \
1756         PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
1757         UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
1758 
1759 #if PCRE2_CODE_UNIT_WIDTH == 32
1760 #define GET_UCD(ch) ((ch > MAX_UTF_CODE_POINT)? \
1761   PRIV(dummy_ucd_record) : REAL_GET_UCD(ch))
1762 #else
1763 #define GET_UCD(ch) REAL_GET_UCD(ch)
1764 #endif
1765 
1766 #define UCD_CHARTYPE(ch)    GET_UCD(ch)->chartype
1767 #define UCD_SCRIPT(ch)      GET_UCD(ch)->script
1768 #define UCD_CATEGORY(ch)    PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
1769 #define UCD_GRAPHBREAK(ch)  GET_UCD(ch)->gbprop
1770 #define UCD_CASESET(ch)     GET_UCD(ch)->caseset
1771 #define UCD_OTHERCASE(ch)   ((uint32_t)((int)ch + (int)(GET_UCD(ch)->other_case)))
1772 
1773 /* Header for serialized pcre2 codes. */
1774 
1775 typedef struct pcre2_serialized_data {
1776   uint32_t magic;
1777   uint32_t version;
1778   uint32_t config;
1779   int32_t  number_of_codes;
1780 } pcre2_serialized_data;
1781 
1782 
1783 
1784 /* ----------------- Items that need PCRE2_CODE_UNIT_WIDTH ----------------- */
1785 
1786 /* When this file is included by pcre2test, PCRE2_CODE_UNIT_WIDTH is defined as
1787 0, so the following items are omitted. */
1788 
1789 #if defined PCRE2_CODE_UNIT_WIDTH && PCRE2_CODE_UNIT_WIDTH != 0
1790 
1791 /* EBCDIC is supported only for the 8-bit library. */
1792 
1793 #if defined EBCDIC && PCRE2_CODE_UNIT_WIDTH != 8
1794 #error EBCDIC is not supported for the 16-bit or 32-bit libraries
1795 #endif
1796 
1797 /* This is the largest non-UTF code point. */
1798 
1799 #define MAX_NON_UTF_CHAR (0xffffffffU >> (32 - PCRE2_CODE_UNIT_WIDTH))
1800 
1801 /* Internal shared data tables and variables. These are used by more than one
1802 of the exported public functions. They have to be "external" in the C sense,
1803 but are not part of the PCRE2 public API. Although the data for some of them is
1804 identical in all libraries, they must have different names so that multiple
1805 libraries can be simultaneously linked to a single application. However, UTF-8
1806 tables are needed only when compiling the 8-bit library. */
1807 
1808 #if PCRE2_CODE_UNIT_WIDTH == 8
1809 extern const int              PRIV(utf8_table1)[];
1810 extern const int              PRIV(utf8_table1_size);
1811 extern const int              PRIV(utf8_table2)[];
1812 extern const int              PRIV(utf8_table3)[];
1813 extern const uint8_t          PRIV(utf8_table4)[];
1814 #endif
1815 
1816 #define _pcre2_OP_lengths              PCRE2_SUFFIX(_pcre2_OP_lengths_)
1817 #define _pcre2_callout_end_delims      PCRE2_SUFFIX(_pcre2_callout_end_delims_)
1818 #define _pcre2_callout_start_delims    PCRE2_SUFFIX(_pcre2_callout_start_delims_)
1819 #define _pcre2_default_compile_context PCRE2_SUFFIX(_pcre2_default_compile_context_)
1820 #define _pcre2_default_convert_context PCRE2_SUFFIX(_pcre2_default_convert_context_)
1821 #define _pcre2_default_match_context   PCRE2_SUFFIX(_pcre2_default_match_context_)
1822 #define _pcre2_default_tables          PCRE2_SUFFIX(_pcre2_default_tables_)
1823 #if PCRE2_CODE_UNIT_WIDTH == 32
1824 #define _pcre2_dummy_ucd_record        PCRE2_SUFFIX(_pcre2_dummy_ucd_record_)
1825 #endif
1826 #define _pcre2_hspace_list             PCRE2_SUFFIX(_pcre2_hspace_list_)
1827 #define _pcre2_vspace_list             PCRE2_SUFFIX(_pcre2_vspace_list_)
1828 #define _pcre2_ucd_caseless_sets       PCRE2_SUFFIX(_pcre2_ucd_caseless_sets_)
1829 #define _pcre2_ucd_records             PCRE2_SUFFIX(_pcre2_ucd_records_)
1830 #define _pcre2_ucd_stage1              PCRE2_SUFFIX(_pcre2_ucd_stage1_)
1831 #define _pcre2_ucd_stage2              PCRE2_SUFFIX(_pcre2_ucd_stage2_)
1832 #define _pcre2_ucp_gbtable             PCRE2_SUFFIX(_pcre2_ucp_gbtable_)
1833 #define _pcre2_ucp_gentype             PCRE2_SUFFIX(_pcre2_ucp_gentype_)
1834 #define _pcre2_ucp_typerange           PCRE2_SUFFIX(_pcre2_ucp_typerange_)
1835 #define _pcre2_unicode_version         PCRE2_SUFFIX(_pcre2_unicode_version_)
1836 #define _pcre2_utt                     PCRE2_SUFFIX(_pcre2_utt_)
1837 #define _pcre2_utt_names               PCRE2_SUFFIX(_pcre2_utt_names_)
1838 #define _pcre2_utt_size                PCRE2_SUFFIX(_pcre2_utt_size_)
1839 
1840 extern const uint8_t                   PRIV(OP_lengths)[];
1841 extern const uint32_t                  PRIV(callout_end_delims)[];
1842 extern const uint32_t                  PRIV(callout_start_delims)[];
1843 extern const pcre2_compile_context     PRIV(default_compile_context);
1844 extern const pcre2_convert_context     PRIV(default_convert_context);
1845 extern const pcre2_match_context       PRIV(default_match_context);
1846 extern const uint8_t                   PRIV(default_tables)[];
1847 extern const uint32_t                  PRIV(hspace_list)[];
1848 extern const uint32_t                  PRIV(vspace_list)[];
1849 extern const uint32_t                  PRIV(ucd_caseless_sets)[];
1850 extern const ucd_record                PRIV(ucd_records)[];
1851 #if PCRE2_CODE_UNIT_WIDTH == 32
1852 extern const ucd_record                PRIV(dummy_ucd_record)[];
1853 #endif
1854 extern const uint16_t                  PRIV(ucd_stage1)[];
1855 extern const uint16_t                  PRIV(ucd_stage2)[];
1856 extern const uint32_t                  PRIV(ucp_gbtable)[];
1857 extern const uint32_t                  PRIV(ucp_gentype)[];
1858 #ifdef SUPPORT_JIT
1859 extern const int                       PRIV(ucp_typerange)[];
1860 #endif
1861 extern const char                     *PRIV(unicode_version);
1862 extern const ucp_type_table            PRIV(utt)[];
1863 extern const char                      PRIV(utt_names)[];
1864 extern const size_t                    PRIV(utt_size);
1865 
1866 /* Mode-dependent macros and hidden and private structures are defined in a
1867 separate file so that pcre2test can include them at all supported widths. When
1868 compiling the library, PCRE2_CODE_UNIT_WIDTH will be defined, and we can
1869 include them at the appropriate width, after setting up suffix macros for the
1870 private structures. */
1871 
1872 #define branch_chain                 PCRE2_SUFFIX(branch_chain_)
1873 #define compile_block                PCRE2_SUFFIX(compile_block_)
1874 #define dfa_match_block              PCRE2_SUFFIX(dfa_match_block_)
1875 #define match_block                  PCRE2_SUFFIX(match_block_)
1876 #define named_group                  PCRE2_SUFFIX(named_group_)
1877 
1878 #include "pcre2_intmodedep.h"
1879 
1880 /* Private "external" functions. These are internal functions that are called
1881 from modules other than the one in which they are defined. They have to be
1882 "external" in the C sense, but are not part of the PCRE2 public API. They are
1883 not referenced from pcre2test, and must not be defined when no code unit width
1884 is available. */
1885 
1886 #define _pcre2_auto_possessify       PCRE2_SUFFIX(_pcre2_auto_possessify_)
1887 #define _pcre2_check_escape          PCRE2_SUFFIX(_pcre2_check_escape_)
1888 #define _pcre2_extuni                PCRE2_SUFFIX(_pcre2_extuni_)
1889 #define _pcre2_find_bracket          PCRE2_SUFFIX(_pcre2_find_bracket_)
1890 #define _pcre2_is_newline            PCRE2_SUFFIX(_pcre2_is_newline_)
1891 #define _pcre2_jit_free_rodata       PCRE2_SUFFIX(_pcre2_jit_free_rodata_)
1892 #define _pcre2_jit_free              PCRE2_SUFFIX(_pcre2_jit_free_)
1893 #define _pcre2_jit_get_size          PCRE2_SUFFIX(_pcre2_jit_get_size_)
1894 #define _pcre2_jit_get_target        PCRE2_SUFFIX(_pcre2_jit_get_target_)
1895 #define _pcre2_memctl_malloc         PCRE2_SUFFIX(_pcre2_memctl_malloc_)
1896 #define _pcre2_ord2utf               PCRE2_SUFFIX(_pcre2_ord2utf_)
1897 #define _pcre2_strcmp                PCRE2_SUFFIX(_pcre2_strcmp_)
1898 #define _pcre2_strcmp_c8             PCRE2_SUFFIX(_pcre2_strcmp_c8_)
1899 #define _pcre2_strcpy_c8             PCRE2_SUFFIX(_pcre2_strcpy_c8_)
1900 #define _pcre2_strlen                PCRE2_SUFFIX(_pcre2_strlen_)
1901 #define _pcre2_strncmp               PCRE2_SUFFIX(_pcre2_strncmp_)
1902 #define _pcre2_strncmp_c8            PCRE2_SUFFIX(_pcre2_strncmp_c8_)
1903 #define _pcre2_study                 PCRE2_SUFFIX(_pcre2_study_)
1904 #define _pcre2_valid_utf             PCRE2_SUFFIX(_pcre2_valid_utf_)
1905 #define _pcre2_was_newline           PCRE2_SUFFIX(_pcre2_was_newline_)
1906 #define _pcre2_xclass                PCRE2_SUFFIX(_pcre2_xclass_)
1907 
1908 extern int          _pcre2_auto_possessify(PCRE2_UCHAR *, BOOL,
1909                       const compile_block *);
1910 extern int          _pcre2_check_escape(PCRE2_SPTR *, PCRE2_SPTR, uint32_t *,
1911                       int *, uint32_t, BOOL, compile_block *);
1912 extern PCRE2_SPTR   _pcre2_extuni(uint32_t, PCRE2_SPTR, PCRE2_SPTR, PCRE2_SPTR,
1913                       BOOL, int *);
1914 extern PCRE2_SPTR   _pcre2_find_bracket(PCRE2_SPTR, BOOL, int);
1915 extern BOOL         _pcre2_is_newline(PCRE2_SPTR, uint32_t, PCRE2_SPTR,
1916                       uint32_t *, BOOL);
1917 extern void         _pcre2_jit_free_rodata(void *, void *);
1918 extern void         _pcre2_jit_free(void *, pcre2_memctl *);
1919 extern size_t       _pcre2_jit_get_size(void *);
1920 const char *        _pcre2_jit_get_target(void);
1921 extern void *       _pcre2_memctl_malloc(size_t, pcre2_memctl *);
1922 extern unsigned int _pcre2_ord2utf(uint32_t, PCRE2_UCHAR *);
1923 extern int          _pcre2_strcmp(PCRE2_SPTR, PCRE2_SPTR);
1924 extern int          _pcre2_strcmp_c8(PCRE2_SPTR, const char *);
1925 extern PCRE2_SIZE   _pcre2_strcpy_c8(PCRE2_UCHAR *, const char *);
1926 extern PCRE2_SIZE   _pcre2_strlen(PCRE2_SPTR);
1927 extern int          _pcre2_strncmp(PCRE2_SPTR, PCRE2_SPTR, size_t);
1928 extern int          _pcre2_strncmp_c8(PCRE2_SPTR, const char *, size_t);
1929 extern int          _pcre2_study(pcre2_real_code *);
1930 extern int          _pcre2_valid_utf(PCRE2_SPTR, PCRE2_SIZE, PCRE2_SIZE *);
1931 extern BOOL         _pcre2_was_newline(PCRE2_SPTR, uint32_t, PCRE2_SPTR,
1932                       uint32_t *, BOOL);
1933 extern BOOL         _pcre2_xclass(uint32_t, PCRE2_SPTR, BOOL);
1934 
1935 /* This function is needed only when memmove() is not available. */
1936 
1937 #if !defined(VPCOMPAT) && !defined(HAVE_MEMMOVE)
1938 #define _pcre2_memmove               PCRE2_SUFFIX(_pcre2_memmove)
1939 extern void *       _pcre2_memmove(void *, const void *, size_t);
1940 #endif
1941 
1942 #endif  /* PCRE2_CODE_UNIT_WIDTH */
1943 #endif  /* PCRE2_INTERNAL_H_IDEMPOTENT_GUARD */
1944 
1945 /* End of pcre2_internal.h */
1946