xref: /PHP-7.4/ext/pcre/pcre2lib/pcre2_internal.h (revision 9f2d0395)
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) 2016-2020 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 /* -ftrivial-auto-var-init support supports initializing all local variables
80 to avoid some classes of bug, but this can cause an unacceptable slowdown
81 for large on-stack arrays in hot functions. This macro lets us annotate
82 such arrays. */
83 
84 #ifdef HAVE_ATTRIBUTE_UNINITIALIZED
85 #define PCRE2_KEEP_UNINITIALIZED __attribute__((uninitialized))
86 #else
87 #define PCRE2_KEEP_UNINITIALIZED
88 #endif
89 
90 /* Older versions of MSVC lack snprintf(). This define allows for
91 warning/error-free compilation and testing with MSVC compilers back to at least
92 MSVC 10/2010. Except for VC6 (which is missing some fundamentals and fails). */
93 
94 #if defined(_MSC_VER) && (_MSC_VER < 1900)
95 #define snprintf _snprintf
96 #endif
97 
98 /* When compiling a DLL for Windows, the exported symbols have to be declared
99 using some MS magic. I found some useful information on this web page:
100 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
101 information there, using __declspec(dllexport) without "extern" we have a
102 definition; with "extern" we have a declaration. The settings here override the
103 setting in pcre2.h (which is included below); it defines only PCRE2_EXP_DECL,
104 which is all that is needed for applications (they just import the symbols). We
105 use:
106 
107   PCRE2_EXP_DECL    for declarations
108   PCRE2_EXP_DEFN    for definitions
109 
110 The reason for wrapping this in #ifndef PCRE2_EXP_DECL is so that pcre2test,
111 which is an application, but needs to import this file in order to "peek" at
112 internals, can #include pcre2.h first to get an application's-eye view.
113 
114 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
115 special-purpose environments) might want to stick other stuff in front of
116 exported symbols. That's why, in the non-Windows case, we set PCRE2_EXP_DEFN
117 only if it is not already set. */
118 
119 #ifndef PCRE2_EXP_DECL
120 #  ifdef _WIN32
121 #    ifndef PCRE2_STATIC
122 #      define PCRE2_EXP_DECL       extern __declspec(dllexport)
123 #      define PCRE2_EXP_DEFN       __declspec(dllexport)
124 #    else
125 #      define PCRE2_EXP_DECL       extern
126 #      define PCRE2_EXP_DEFN
127 #    endif
128 #  else
129 #    ifdef __cplusplus
130 #      define PCRE2_EXP_DECL       extern "C"
131 #    else
132 #      define PCRE2_EXP_DECL       extern
133 #    endif
134 #    ifndef PCRE2_EXP_DEFN
135 #      define PCRE2_EXP_DEFN       PCRE2_EXP_DECL
136 #    endif
137 #  endif
138 #endif
139 
140 /* Include the public PCRE2 header and the definitions of UCP character
141 property values. This must follow the setting of PCRE2_EXP_DECL above. */
142 
143 #include "pcre2.h"
144 #include "pcre2_ucp.h"
145 
146 /* When PCRE2 is compiled as a C++ library, the subject pointer can be replaced
147 with a custom type. This makes it possible, for example, to allow pcre2_match()
148 to process subject strings that are discontinuous by using a smart pointer
149 class. It must always be possible to inspect all of the subject string in
150 pcre2_match() because of the way it backtracks. */
151 
152 /* WARNING: This is as yet untested for PCRE2. */
153 
154 #ifdef CUSTOM_SUBJECT_PTR
155 #undef PCRE2_SPTR
156 #define PCRE2_SPTR CUSTOM_SUBJECT_PTR
157 #endif
158 
159 /* When checking for integer overflow in pcre2_compile(), we need to handle
160 large integers. If a 64-bit integer type is available, we can use that.
161 Otherwise we have to cast to double, which of course requires floating point
162 arithmetic. Handle this by defining a macro for the appropriate type. */
163 
164 #if defined INT64_MAX || defined int64_t
165 #define INT64_OR_DOUBLE int64_t
166 #else
167 #define INT64_OR_DOUBLE double
168 #endif
169 
170 /* External (in the C sense) functions and tables that are private to the
171 libraries are always referenced using the PRIV macro. This makes it possible
172 for pcre2test.c to include some of the source files from the libraries using a
173 different PRIV definition to avoid name clashes. It also makes it clear in the
174 code that a non-static object is being referenced. */
175 
176 #ifndef PRIV
177 #define PRIV(name) _pcre2_##name
178 #endif
179 
180 /* When compiling for use with the Virtual Pascal compiler, these functions
181 need to have their names changed. PCRE2 must be compiled with the -DVPCOMPAT
182 option on the command line. */
183 
184 #ifdef VPCOMPAT
185 #define strlen(s)        _strlen(s)
186 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
187 #define memcmp(s,c,n)    _memcmp(s,c,n)
188 #define memcpy(d,s,n)    _memcpy(d,s,n)
189 #define memmove(d,s,n)   _memmove(d,s,n)
190 #define memset(s,c,n)    _memset(s,c,n)
191 #else  /* VPCOMPAT */
192 
193 /* Otherwise, to cope with SunOS4 and other systems that lack memmove(), define
194 a macro that calls an emulating function. */
195 
196 #ifndef HAVE_MEMMOVE
197 #undef  memmove          /* Some systems may have a macro */
198 #define memmove(a, b, c) PRIV(memmove)(a, b, c)
199 #endif   /* not HAVE_MEMMOVE */
200 #endif   /* not VPCOMPAT */
201 
202 /* This is an unsigned int value that no UTF character can ever have, as
203 Unicode doesn't go beyond 0x0010ffff. */
204 
205 #define NOTACHAR 0xffffffff
206 
207 /* This is the largest valid UTF/Unicode code point. */
208 
209 #define MAX_UTF_CODE_POINT 0x10ffff
210 
211 /* Compile-time positive error numbers (all except UTF errors, which are
212 negative) start at this value. It should probably never be changed, in case
213 some application is checking for specific numbers. There is a copy of this
214 #define in pcre2posix.c (which now no longer includes this file). Ideally, a
215 way of having a single definition should be found, but as the number is
216 unlikely to change, this is not a pressing issue. The original reason for
217 having a base other than 0 was to keep the absolute values of compile-time and
218 run-time error numbers numerically different, but in the event the code does
219 not rely on this. */
220 
221 #define COMPILE_ERROR_BASE 100
222 
223 /* The initial frames vector for remembering backtracking points in
224 pcre2_match() is allocated on the system stack, of this size (bytes). The size
225 must be a multiple of sizeof(PCRE2_SPTR) in all environments, so making it a
226 multiple of 8 is best. Typical frame sizes are a few hundred bytes (it depends
227 on the number of capturing parentheses) so 20KiB handles quite a few frames. A
228 larger vector on the heap is obtained for patterns that need more frames. The
229 maximum size of this can be limited. */
230 
231 #define START_FRAMES_SIZE 20480
232 
233 /* Similarly, for DFA matching, an initial internal workspace vector is
234 allocated on the stack. */
235 
236 #define DFA_START_RWS_SIZE 30720
237 
238 /* Define the default BSR convention. */
239 
240 #ifdef BSR_ANYCRLF
241 #define BSR_DEFAULT PCRE2_BSR_ANYCRLF
242 #else
243 #define BSR_DEFAULT PCRE2_BSR_UNICODE
244 #endif
245 
246 
247 /* ---------------- Basic UTF-8 macros ---------------- */
248 
249 /* These UTF-8 macros are always defined because they are used in pcre2test for
250 handling wide characters in 16-bit and 32-bit modes, even if an 8-bit library
251 is not supported. */
252 
253 /* Tests whether a UTF-8 code point needs extra bytes to decode. */
254 
255 #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
256 
257 /* The following macros were originally written in the form of loops that used
258 data from the tables whose names start with PRIV(utf8_table). They were
259 rewritten by a user so as not to use loops, because in some environments this
260 gives a significant performance advantage, and it seems never to do any harm.
261 */
262 
263 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
264 advancing the pointer. */
265 
266 #define GETUTF8(c, eptr) \
267     { \
268     if ((c & 0x20u) == 0) \
269       c = ((c & 0x1fu) << 6) | (eptr[1] & 0x3fu); \
270     else if ((c & 0x10u) == 0) \
271       c = ((c & 0x0fu) << 12) | ((eptr[1] & 0x3fu) << 6) | (eptr[2] & 0x3fu); \
272     else if ((c & 0x08u) == 0) \
273       c = ((c & 0x07u) << 18) | ((eptr[1] & 0x3fu) << 12) | \
274       ((eptr[2] & 0x3fu) << 6) | (eptr[3] & 0x3fu); \
275     else if ((c & 0x04u) == 0) \
276       c = ((c & 0x03u) << 24) | ((eptr[1] & 0x3fu) << 18) | \
277           ((eptr[2] & 0x3fu) << 12) | ((eptr[3] & 0x3fu) << 6) | \
278           (eptr[4] & 0x3fu); \
279     else \
280       c = ((c & 0x01u) << 30) | ((eptr[1] & 0x3fu) << 24) | \
281           ((eptr[2] & 0x3fu) << 18) | ((eptr[3] & 0x3fu) << 12) | \
282           ((eptr[4] & 0x3fu) << 6) | (eptr[5] & 0x3fu); \
283     }
284 
285 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
286 the pointer. */
287 
288 #define GETUTF8INC(c, eptr) \
289     { \
290     if ((c & 0x20u) == 0) \
291       c = ((c & 0x1fu) << 6) | (*eptr++ & 0x3fu); \
292     else if ((c & 0x10u) == 0) \
293       { \
294       c = ((c & 0x0fu) << 12) | ((*eptr & 0x3fu) << 6) | (eptr[1] & 0x3fu); \
295       eptr += 2; \
296       } \
297     else if ((c & 0x08u) == 0) \
298       { \
299       c = ((c & 0x07u) << 18) | ((*eptr & 0x3fu) << 12) | \
300           ((eptr[1] & 0x3fu) << 6) | (eptr[2] & 0x3fu); \
301       eptr += 3; \
302       } \
303     else if ((c & 0x04u) == 0) \
304       { \
305       c = ((c & 0x03u) << 24) | ((*eptr & 0x3fu) << 18) | \
306           ((eptr[1] & 0x3fu) << 12) | ((eptr[2] & 0x3fu) << 6) | \
307           (eptr[3] & 0x3fu); \
308       eptr += 4; \
309       } \
310     else \
311       { \
312       c = ((c & 0x01u) << 30) | ((*eptr & 0x3fu) << 24) | \
313           ((eptr[1] & 0x3fu) << 18) | ((eptr[2] & 0x3fu) << 12) | \
314           ((eptr[3] & 0x3fu) << 6) | (eptr[4] & 0x3fu); \
315       eptr += 5; \
316       } \
317     }
318 
319 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
320 advancing the pointer, incrementing the length. */
321 
322 #define GETUTF8LEN(c, eptr, len) \
323     { \
324     if ((c & 0x20u) == 0) \
325       { \
326       c = ((c & 0x1fu) << 6) | (eptr[1] & 0x3fu); \
327       len++; \
328       } \
329     else if ((c & 0x10u)  == 0) \
330       { \
331       c = ((c & 0x0fu) << 12) | ((eptr[1] & 0x3fu) << 6) | (eptr[2] & 0x3fu); \
332       len += 2; \
333       } \
334     else if ((c & 0x08u)  == 0) \
335       {\
336       c = ((c & 0x07u) << 18) | ((eptr[1] & 0x3fu) << 12) | \
337           ((eptr[2] & 0x3fu) << 6) | (eptr[3] & 0x3fu); \
338       len += 3; \
339       } \
340     else if ((c & 0x04u)  == 0) \
341       { \
342       c = ((c & 0x03u) << 24) | ((eptr[1] & 0x3fu) << 18) | \
343           ((eptr[2] & 0x3fu) << 12) | ((eptr[3] & 0x3fu) << 6) | \
344           (eptr[4] & 0x3fu); \
345       len += 4; \
346       } \
347     else \
348       {\
349       c = ((c & 0x01u) << 30) | ((eptr[1] & 0x3fu) << 24) | \
350           ((eptr[2] & 0x3fu) << 18) | ((eptr[3] & 0x3fu) << 12) | \
351           ((eptr[4] & 0x3fu) << 6) | (eptr[5] & 0x3fu); \
352       len += 5; \
353       } \
354     }
355 
356 /* --------------- Whitespace macros ---------------- */
357 
358 /* Tests for Unicode horizontal and vertical whitespace characters must check a
359 number of different values. Using a switch statement for this generates the
360 fastest code (no loop, no memory access), and there are several places in the
361 interpreter code where this happens. In order to ensure that all the case lists
362 remain in step, we use macros so that there is only one place where the lists
363 are defined.
364 
365 These values are also required as lists in pcre2_compile.c when processing \h,
366 \H, \v and \V in a character class. The lists are defined in pcre2_tables.c,
367 but macros that define the values are here so that all the definitions are
368 together. The lists must be in ascending character order, terminated by
369 NOTACHAR (which is 0xffffffff).
370 
371 Any changes should ensure that the various macros are kept in step with each
372 other. NOTE: The values also appear in pcre2_jit_compile.c. */
373 
374 /* -------------- ASCII/Unicode environments -------------- */
375 
376 #ifndef EBCDIC
377 
378 /* Character U+180E (Mongolian Vowel Separator) is not included in the list of
379 spaces in the Unicode file PropList.txt, and Perl does not recognize it as a
380 space. However, in many other sources it is listed as a space and has been in
381 PCRE (both APIs) for a long time. */
382 
383 #define HSPACE_LIST \
384   CHAR_HT, CHAR_SPACE, CHAR_NBSP, \
385   0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
386   0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
387   NOTACHAR
388 
389 #define HSPACE_MULTIBYTE_CASES \
390   case 0x1680:  /* OGHAM SPACE MARK */ \
391   case 0x180e:  /* MONGOLIAN VOWEL SEPARATOR */ \
392   case 0x2000:  /* EN QUAD */ \
393   case 0x2001:  /* EM QUAD */ \
394   case 0x2002:  /* EN SPACE */ \
395   case 0x2003:  /* EM SPACE */ \
396   case 0x2004:  /* THREE-PER-EM SPACE */ \
397   case 0x2005:  /* FOUR-PER-EM SPACE */ \
398   case 0x2006:  /* SIX-PER-EM SPACE */ \
399   case 0x2007:  /* FIGURE SPACE */ \
400   case 0x2008:  /* PUNCTUATION SPACE */ \
401   case 0x2009:  /* THIN SPACE */ \
402   case 0x200A:  /* HAIR SPACE */ \
403   case 0x202f:  /* NARROW NO-BREAK SPACE */ \
404   case 0x205f:  /* MEDIUM MATHEMATICAL SPACE */ \
405   case 0x3000   /* IDEOGRAPHIC SPACE */
406 
407 #define HSPACE_BYTE_CASES \
408   case CHAR_HT: \
409   case CHAR_SPACE: \
410   case CHAR_NBSP
411 
412 #define HSPACE_CASES \
413   HSPACE_BYTE_CASES: \
414   HSPACE_MULTIBYTE_CASES
415 
416 #define VSPACE_LIST \
417   CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
418 
419 #define VSPACE_MULTIBYTE_CASES \
420   case 0x2028:    /* LINE SEPARATOR */ \
421   case 0x2029     /* PARAGRAPH SEPARATOR */
422 
423 #define VSPACE_BYTE_CASES \
424   case CHAR_LF: \
425   case CHAR_VT: \
426   case CHAR_FF: \
427   case CHAR_CR: \
428   case CHAR_NEL
429 
430 #define VSPACE_CASES \
431   VSPACE_BYTE_CASES: \
432   VSPACE_MULTIBYTE_CASES
433 
434 /* -------------- EBCDIC environments -------------- */
435 
436 #else
437 #define HSPACE_LIST CHAR_HT, CHAR_SPACE, CHAR_NBSP, NOTACHAR
438 
439 #define HSPACE_BYTE_CASES \
440   case CHAR_HT: \
441   case CHAR_SPACE: \
442   case CHAR_NBSP
443 
444 #define HSPACE_CASES HSPACE_BYTE_CASES
445 
446 #ifdef EBCDIC_NL25
447 #define VSPACE_LIST \
448   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
449 #else
450 #define VSPACE_LIST \
451   CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
452 #endif
453 
454 #define VSPACE_BYTE_CASES \
455   case CHAR_LF: \
456   case CHAR_VT: \
457   case CHAR_FF: \
458   case CHAR_CR: \
459   case CHAR_NEL
460 
461 #define VSPACE_CASES VSPACE_BYTE_CASES
462 #endif  /* EBCDIC */
463 
464 /* -------------- End of whitespace macros -------------- */
465 
466 
467 /* PCRE2 is able to support several different kinds of newline (CR, LF, CRLF,
468 "any" and "anycrlf" at present). The following macros are used to package up
469 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
470 modules to indicate in which datablock the parameters exist, and what the
471 start/end of string field names are. */
472 
473 #define NLTYPE_FIXED    0     /* Newline is a fixed length string */
474 #define NLTYPE_ANY      1     /* Newline is any Unicode line ending */
475 #define NLTYPE_ANYCRLF  2     /* Newline is CR, LF, or CRLF */
476 
477 /* This macro checks for a newline at the given position */
478 
479 #define IS_NEWLINE(p) \
480   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
481     ((p) < NLBLOCK->PSEND && \
482      PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
483        &(NLBLOCK->nllen), utf)) \
484     : \
485     ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
486      UCHAR21TEST(p) == NLBLOCK->nl[0] && \
487      (NLBLOCK->nllen == 1 || UCHAR21TEST(p+1) == NLBLOCK->nl[1])       \
488     ) \
489   )
490 
491 /* This macro checks for a newline immediately preceding the given position */
492 
493 #define WAS_NEWLINE(p) \
494   ((NLBLOCK->nltype != NLTYPE_FIXED)? \
495     ((p) > NLBLOCK->PSSTART && \
496      PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
497        &(NLBLOCK->nllen), utf)) \
498     : \
499     ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
500      UCHAR21TEST(p - NLBLOCK->nllen) == NLBLOCK->nl[0] &&              \
501      (NLBLOCK->nllen == 1 || UCHAR21TEST(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
502     ) \
503   )
504 
505 /* Private flags containing information about the compiled pattern. The first
506 three must not be changed, because whichever is set is actually the number of
507 bytes in a code unit in that mode. */
508 
509 #define PCRE2_MODE8         0x00000001  /* compiled in 8 bit mode */
510 #define PCRE2_MODE16        0x00000002  /* compiled in 16 bit mode */
511 #define PCRE2_MODE32        0x00000004  /* compiled in 32 bit mode */
512 #define PCRE2_FIRSTSET      0x00000010  /* first_code unit is set */
513 #define PCRE2_FIRSTCASELESS 0x00000020  /* caseless first code unit */
514 #define PCRE2_FIRSTMAPSET   0x00000040  /* bitmap of first code units is set */
515 #define PCRE2_LASTSET       0x00000080  /* last code unit is set */
516 #define PCRE2_LASTCASELESS  0x00000100  /* caseless last code unit */
517 #define PCRE2_STARTLINE     0x00000200  /* start after \n for multiline */
518 #define PCRE2_JCHANGED      0x00000400  /* j option used in pattern */
519 #define PCRE2_HASCRORLF     0x00000800  /* explicit \r or \n in pattern */
520 #define PCRE2_HASTHEN       0x00001000  /* pattern contains (*THEN) */
521 #define PCRE2_MATCH_EMPTY   0x00002000  /* pattern can match empty string */
522 #define PCRE2_BSR_SET       0x00004000  /* BSR was set in the pattern */
523 #define PCRE2_NL_SET        0x00008000  /* newline was set in the pattern */
524 #define PCRE2_NOTEMPTY_SET  0x00010000  /* (*NOTEMPTY) used        ) keep */
525 #define PCRE2_NE_ATST_SET   0x00020000  /* (*NOTEMPTY_ATSTART) used) together */
526 #define PCRE2_DEREF_TABLES  0x00040000  /* release character tables */
527 #define PCRE2_NOJIT         0x00080000  /* (*NOJIT) used */
528 #define PCRE2_HASBKPORX     0x00100000  /* contains \P, \p, or \X */
529 #define PCRE2_DUPCAPUSED    0x00200000  /* contains (?| */
530 #define PCRE2_HASBKC        0x00400000  /* contains \C */
531 #define PCRE2_HASACCEPT     0x00800000  /* contains (*ACCEPT) */
532 
533 #define PCRE2_MODE_MASK     (PCRE2_MODE8 | PCRE2_MODE16 | PCRE2_MODE32)
534 
535 /* Values for the matchedby field in a match data block. */
536 
537 enum { PCRE2_MATCHEDBY_INTERPRETER,     /* pcre2_match() */
538        PCRE2_MATCHEDBY_DFA_INTERPRETER, /* pcre2_dfa_match() */
539        PCRE2_MATCHEDBY_JIT };           /* pcre2_jit_match() */
540 
541 /* Values for the flags field in a match data block. */
542 
543 #define PCRE2_MD_COPIED_SUBJECT  0x01u
544 
545 /* Magic number to provide a small check against being handed junk. */
546 
547 #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
548 
549 /* The maximum remaining length of subject we are prepared to search for a
550 req_unit match from an anchored pattern. In 8-bit mode, memchr() is used and is
551 much faster than the search loop that has to be used in 16-bit and 32-bit
552 modes. */
553 
554 #if PCRE2_CODE_UNIT_WIDTH == 8
555 #define REQ_CU_MAX       5000
556 #else
557 #define REQ_CU_MAX       2000
558 #endif
559 
560 /* Offsets for the bitmap tables in the cbits set of tables. Each table
561 contains a set of bits for a class map. Some classes are built by combining
562 these tables. */
563 
564 #define cbit_space     0      /* [:space:] or \s */
565 #define cbit_xdigit   32      /* [:xdigit:] */
566 #define cbit_digit    64      /* [:digit:] or \d */
567 #define cbit_upper    96      /* [:upper:] */
568 #define cbit_lower   128      /* [:lower:] */
569 #define cbit_word    160      /* [:word:] or \w */
570 #define cbit_graph   192      /* [:graph:] */
571 #define cbit_print   224      /* [:print:] */
572 #define cbit_punct   256      /* [:punct:] */
573 #define cbit_cntrl   288      /* [:cntrl:] */
574 #define cbit_length  320      /* Length of the cbits table */
575 
576 /* Bit definitions for entries in the ctypes table. Do not change these values
577 without checking pcre2_jit_compile.c, which has an assertion to ensure that
578 ctype_word has the value 16. */
579 
580 #define ctype_space    0x01
581 #define ctype_letter   0x02
582 #define ctype_lcletter 0x04
583 #define ctype_digit    0x08
584 #define ctype_word     0x10    /* alphanumeric or '_' */
585 
586 /* Offsets of the various tables from the base tables pointer, and
587 total length of the tables. */
588 
589 #define lcc_offset      0                           /* Lower case */
590 #define fcc_offset    256                           /* Flip case */
591 #define cbits_offset  512                           /* Character classes */
592 #define ctypes_offset (cbits_offset + cbit_length)  /* Character types */
593 #define TABLES_LENGTH (ctypes_offset + 256)
594 
595 
596 /* -------------------- Character and string names ------------------------ */
597 
598 /* If PCRE2 is to support UTF-8 on EBCDIC platforms, we cannot use normal
599 character constants like '*' because the compiler would emit their EBCDIC code,
600 which is different from their ASCII/UTF-8 code. Instead we define macros for
601 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
602 is enabled. When UTF-8 support is not enabled, the definitions use character
603 literals. Both character and string versions of each character are needed, and
604 there are some longer strings as well.
605 
606 This means that, on EBCDIC platforms, the PCRE2 library can handle either
607 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
608 would need different lookups depending on whether PCRE2_UTF was set or not.
609 This would make it impossible to use characters in switch/case statements,
610 which would reduce performance. For a theoretical use (which nobody has asked
611 for) in a minority area (EBCDIC platforms), this is not sensible. Any
612 application that did need both could compile two versions of the library, using
613 macros to give the functions distinct names. */
614 
615 #ifndef SUPPORT_UNICODE
616 
617 /* UTF-8 support is not enabled; use the platform-dependent character literals
618 so that PCRE2 works in both ASCII and EBCDIC environments, but only in non-UTF
619 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
620 characters, a common practice has been to use its NL (0x15) character as the
621 line terminator in C-like processing environments. However, sometimes the LF
622 (0x25) character is used instead, according to this Unicode document:
623 
624 http://unicode.org/standard/reports/tr13/tr13-5.html
625 
626 PCRE2 defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
627 instead. Whichever is *not* chosen is defined as NEL.
628 
629 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
630 same code point. */
631 
632 #ifdef EBCDIC
633 
634 #ifndef EBCDIC_NL25
635 #define CHAR_NL                     '\x15'
636 #define CHAR_NEL                    '\x25'
637 #define STR_NL                      "\x15"
638 #define STR_NEL                     "\x25"
639 #else
640 #define CHAR_NL                     '\x25'
641 #define CHAR_NEL                    '\x15'
642 #define STR_NL                      "\x25"
643 #define STR_NEL                     "\x15"
644 #endif
645 
646 #define CHAR_LF                     CHAR_NL
647 #define STR_LF                      STR_NL
648 
649 #define CHAR_ESC                    '\047'
650 #define CHAR_DEL                    '\007'
651 #define CHAR_NBSP                   ((unsigned char)'\x41')
652 #define STR_ESC                     "\047"
653 #define STR_DEL                     "\007"
654 
655 #else  /* Not EBCDIC */
656 
657 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
658 compatibility. NEL is the Unicode newline character; make sure it is
659 a positive value. */
660 
661 #define CHAR_LF                     '\n'
662 #define CHAR_NL                     CHAR_LF
663 #define CHAR_NEL                    ((unsigned char)'\x85')
664 #define CHAR_ESC                    '\033'
665 #define CHAR_DEL                    '\177'
666 #define CHAR_NBSP                   ((unsigned char)'\xa0')
667 
668 #define STR_LF                      "\n"
669 #define STR_NL                      STR_LF
670 #define STR_NEL                     "\x85"
671 #define STR_ESC                     "\033"
672 #define STR_DEL                     "\177"
673 
674 #endif  /* EBCDIC */
675 
676 /* The remaining definitions work in both environments. */
677 
678 #define CHAR_NUL                    '\0'
679 #define CHAR_HT                     '\t'
680 #define CHAR_VT                     '\v'
681 #define CHAR_FF                     '\f'
682 #define CHAR_CR                     '\r'
683 #define CHAR_BS                     '\b'
684 #define CHAR_BEL                    '\a'
685 
686 #define CHAR_SPACE                  ' '
687 #define CHAR_EXCLAMATION_MARK       '!'
688 #define CHAR_QUOTATION_MARK         '"'
689 #define CHAR_NUMBER_SIGN            '#'
690 #define CHAR_DOLLAR_SIGN            '$'
691 #define CHAR_PERCENT_SIGN           '%'
692 #define CHAR_AMPERSAND              '&'
693 #define CHAR_APOSTROPHE             '\''
694 #define CHAR_LEFT_PARENTHESIS       '('
695 #define CHAR_RIGHT_PARENTHESIS      ')'
696 #define CHAR_ASTERISK               '*'
697 #define CHAR_PLUS                   '+'
698 #define CHAR_COMMA                  ','
699 #define CHAR_MINUS                  '-'
700 #define CHAR_DOT                    '.'
701 #define CHAR_SLASH                  '/'
702 #define CHAR_0                      '0'
703 #define CHAR_1                      '1'
704 #define CHAR_2                      '2'
705 #define CHAR_3                      '3'
706 #define CHAR_4                      '4'
707 #define CHAR_5                      '5'
708 #define CHAR_6                      '6'
709 #define CHAR_7                      '7'
710 #define CHAR_8                      '8'
711 #define CHAR_9                      '9'
712 #define CHAR_COLON                  ':'
713 #define CHAR_SEMICOLON              ';'
714 #define CHAR_LESS_THAN_SIGN         '<'
715 #define CHAR_EQUALS_SIGN            '='
716 #define CHAR_GREATER_THAN_SIGN      '>'
717 #define CHAR_QUESTION_MARK          '?'
718 #define CHAR_COMMERCIAL_AT          '@'
719 #define CHAR_A                      'A'
720 #define CHAR_B                      'B'
721 #define CHAR_C                      'C'
722 #define CHAR_D                      'D'
723 #define CHAR_E                      'E'
724 #define CHAR_F                      'F'
725 #define CHAR_G                      'G'
726 #define CHAR_H                      'H'
727 #define CHAR_I                      'I'
728 #define CHAR_J                      'J'
729 #define CHAR_K                      'K'
730 #define CHAR_L                      'L'
731 #define CHAR_M                      'M'
732 #define CHAR_N                      'N'
733 #define CHAR_O                      'O'
734 #define CHAR_P                      'P'
735 #define CHAR_Q                      'Q'
736 #define CHAR_R                      'R'
737 #define CHAR_S                      'S'
738 #define CHAR_T                      'T'
739 #define CHAR_U                      'U'
740 #define CHAR_V                      'V'
741 #define CHAR_W                      'W'
742 #define CHAR_X                      'X'
743 #define CHAR_Y                      'Y'
744 #define CHAR_Z                      'Z'
745 #define CHAR_LEFT_SQUARE_BRACKET    '['
746 #define CHAR_BACKSLASH              '\\'
747 #define CHAR_RIGHT_SQUARE_BRACKET   ']'
748 #define CHAR_CIRCUMFLEX_ACCENT      '^'
749 #define CHAR_UNDERSCORE             '_'
750 #define CHAR_GRAVE_ACCENT           '`'
751 #define CHAR_a                      'a'
752 #define CHAR_b                      'b'
753 #define CHAR_c                      'c'
754 #define CHAR_d                      'd'
755 #define CHAR_e                      'e'
756 #define CHAR_f                      'f'
757 #define CHAR_g                      'g'
758 #define CHAR_h                      'h'
759 #define CHAR_i                      'i'
760 #define CHAR_j                      'j'
761 #define CHAR_k                      'k'
762 #define CHAR_l                      'l'
763 #define CHAR_m                      'm'
764 #define CHAR_n                      'n'
765 #define CHAR_o                      'o'
766 #define CHAR_p                      'p'
767 #define CHAR_q                      'q'
768 #define CHAR_r                      'r'
769 #define CHAR_s                      's'
770 #define CHAR_t                      't'
771 #define CHAR_u                      'u'
772 #define CHAR_v                      'v'
773 #define CHAR_w                      'w'
774 #define CHAR_x                      'x'
775 #define CHAR_y                      'y'
776 #define CHAR_z                      'z'
777 #define CHAR_LEFT_CURLY_BRACKET     '{'
778 #define CHAR_VERTICAL_LINE          '|'
779 #define CHAR_RIGHT_CURLY_BRACKET    '}'
780 #define CHAR_TILDE                  '~'
781 
782 #define STR_HT                      "\t"
783 #define STR_VT                      "\v"
784 #define STR_FF                      "\f"
785 #define STR_CR                      "\r"
786 #define STR_BS                      "\b"
787 #define STR_BEL                     "\a"
788 
789 #define STR_SPACE                   " "
790 #define STR_EXCLAMATION_MARK        "!"
791 #define STR_QUOTATION_MARK          "\""
792 #define STR_NUMBER_SIGN             "#"
793 #define STR_DOLLAR_SIGN             "$"
794 #define STR_PERCENT_SIGN            "%"
795 #define STR_AMPERSAND               "&"
796 #define STR_APOSTROPHE              "'"
797 #define STR_LEFT_PARENTHESIS        "("
798 #define STR_RIGHT_PARENTHESIS       ")"
799 #define STR_ASTERISK                "*"
800 #define STR_PLUS                    "+"
801 #define STR_COMMA                   ","
802 #define STR_MINUS                   "-"
803 #define STR_DOT                     "."
804 #define STR_SLASH                   "/"
805 #define STR_0                       "0"
806 #define STR_1                       "1"
807 #define STR_2                       "2"
808 #define STR_3                       "3"
809 #define STR_4                       "4"
810 #define STR_5                       "5"
811 #define STR_6                       "6"
812 #define STR_7                       "7"
813 #define STR_8                       "8"
814 #define STR_9                       "9"
815 #define STR_COLON                   ":"
816 #define STR_SEMICOLON               ";"
817 #define STR_LESS_THAN_SIGN          "<"
818 #define STR_EQUALS_SIGN             "="
819 #define STR_GREATER_THAN_SIGN       ">"
820 #define STR_QUESTION_MARK           "?"
821 #define STR_COMMERCIAL_AT           "@"
822 #define STR_A                       "A"
823 #define STR_B                       "B"
824 #define STR_C                       "C"
825 #define STR_D                       "D"
826 #define STR_E                       "E"
827 #define STR_F                       "F"
828 #define STR_G                       "G"
829 #define STR_H                       "H"
830 #define STR_I                       "I"
831 #define STR_J                       "J"
832 #define STR_K                       "K"
833 #define STR_L                       "L"
834 #define STR_M                       "M"
835 #define STR_N                       "N"
836 #define STR_O                       "O"
837 #define STR_P                       "P"
838 #define STR_Q                       "Q"
839 #define STR_R                       "R"
840 #define STR_S                       "S"
841 #define STR_T                       "T"
842 #define STR_U                       "U"
843 #define STR_V                       "V"
844 #define STR_W                       "W"
845 #define STR_X                       "X"
846 #define STR_Y                       "Y"
847 #define STR_Z                       "Z"
848 #define STR_LEFT_SQUARE_BRACKET     "["
849 #define STR_BACKSLASH               "\\"
850 #define STR_RIGHT_SQUARE_BRACKET    "]"
851 #define STR_CIRCUMFLEX_ACCENT       "^"
852 #define STR_UNDERSCORE              "_"
853 #define STR_GRAVE_ACCENT            "`"
854 #define STR_a                       "a"
855 #define STR_b                       "b"
856 #define STR_c                       "c"
857 #define STR_d                       "d"
858 #define STR_e                       "e"
859 #define STR_f                       "f"
860 #define STR_g                       "g"
861 #define STR_h                       "h"
862 #define STR_i                       "i"
863 #define STR_j                       "j"
864 #define STR_k                       "k"
865 #define STR_l                       "l"
866 #define STR_m                       "m"
867 #define STR_n                       "n"
868 #define STR_o                       "o"
869 #define STR_p                       "p"
870 #define STR_q                       "q"
871 #define STR_r                       "r"
872 #define STR_s                       "s"
873 #define STR_t                       "t"
874 #define STR_u                       "u"
875 #define STR_v                       "v"
876 #define STR_w                       "w"
877 #define STR_x                       "x"
878 #define STR_y                       "y"
879 #define STR_z                       "z"
880 #define STR_LEFT_CURLY_BRACKET      "{"
881 #define STR_VERTICAL_LINE           "|"
882 #define STR_RIGHT_CURLY_BRACKET     "}"
883 #define STR_TILDE                   "~"
884 
885 #define STRING_ACCEPT0               "ACCEPT\0"
886 #define STRING_COMMIT0               "COMMIT\0"
887 #define STRING_F0                    "F\0"
888 #define STRING_FAIL0                 "FAIL\0"
889 #define STRING_MARK0                 "MARK\0"
890 #define STRING_PRUNE0                "PRUNE\0"
891 #define STRING_SKIP0                 "SKIP\0"
892 #define STRING_THEN                  "THEN"
893 
894 #define STRING_atomic0               "atomic\0"
895 #define STRING_pla0                  "pla\0"
896 #define STRING_plb0                  "plb\0"
897 #define STRING_napla0                "napla\0"
898 #define STRING_naplb0                "naplb\0"
899 #define STRING_nla0                  "nla\0"
900 #define STRING_nlb0                  "nlb\0"
901 #define STRING_sr0                   "sr\0"
902 #define STRING_asr0                  "asr\0"
903 #define STRING_positive_lookahead0   "positive_lookahead\0"
904 #define STRING_positive_lookbehind0  "positive_lookbehind\0"
905 #define STRING_non_atomic_positive_lookahead0   "non_atomic_positive_lookahead\0"
906 #define STRING_non_atomic_positive_lookbehind0  "non_atomic_positive_lookbehind\0"
907 #define STRING_negative_lookahead0   "negative_lookahead\0"
908 #define STRING_negative_lookbehind0  "negative_lookbehind\0"
909 #define STRING_script_run0           "script_run\0"
910 #define STRING_atomic_script_run     "atomic_script_run"
911 
912 #define STRING_alpha0                "alpha\0"
913 #define STRING_lower0                "lower\0"
914 #define STRING_upper0                "upper\0"
915 #define STRING_alnum0                "alnum\0"
916 #define STRING_ascii0                "ascii\0"
917 #define STRING_blank0                "blank\0"
918 #define STRING_cntrl0                "cntrl\0"
919 #define STRING_digit0                "digit\0"
920 #define STRING_graph0                "graph\0"
921 #define STRING_print0                "print\0"
922 #define STRING_punct0                "punct\0"
923 #define STRING_space0                "space\0"
924 #define STRING_word0                 "word\0"
925 #define STRING_xdigit                "xdigit"
926 
927 #define STRING_DEFINE                "DEFINE"
928 #define STRING_VERSION               "VERSION"
929 #define STRING_WEIRD_STARTWORD       "[:<:]]"
930 #define STRING_WEIRD_ENDWORD         "[:>:]]"
931 
932 #define STRING_CR_RIGHTPAR                "CR)"
933 #define STRING_LF_RIGHTPAR                "LF)"
934 #define STRING_CRLF_RIGHTPAR              "CRLF)"
935 #define STRING_ANY_RIGHTPAR               "ANY)"
936 #define STRING_ANYCRLF_RIGHTPAR           "ANYCRLF)"
937 #define STRING_NUL_RIGHTPAR               "NUL)"
938 #define STRING_BSR_ANYCRLF_RIGHTPAR       "BSR_ANYCRLF)"
939 #define STRING_BSR_UNICODE_RIGHTPAR       "BSR_UNICODE)"
940 #define STRING_UTF8_RIGHTPAR              "UTF8)"
941 #define STRING_UTF16_RIGHTPAR             "UTF16)"
942 #define STRING_UTF32_RIGHTPAR             "UTF32)"
943 #define STRING_UTF_RIGHTPAR               "UTF)"
944 #define STRING_UCP_RIGHTPAR               "UCP)"
945 #define STRING_NO_AUTO_POSSESS_RIGHTPAR   "NO_AUTO_POSSESS)"
946 #define STRING_NO_DOTSTAR_ANCHOR_RIGHTPAR "NO_DOTSTAR_ANCHOR)"
947 #define STRING_NO_JIT_RIGHTPAR            "NO_JIT)"
948 #define STRING_NO_START_OPT_RIGHTPAR      "NO_START_OPT)"
949 #define STRING_NOTEMPTY_RIGHTPAR          "NOTEMPTY)"
950 #define STRING_NOTEMPTY_ATSTART_RIGHTPAR  "NOTEMPTY_ATSTART)"
951 #define STRING_LIMIT_HEAP_EQ              "LIMIT_HEAP="
952 #define STRING_LIMIT_MATCH_EQ             "LIMIT_MATCH="
953 #define STRING_LIMIT_DEPTH_EQ             "LIMIT_DEPTH="
954 #define STRING_LIMIT_RECURSION_EQ         "LIMIT_RECURSION="
955 #define STRING_MARK                       "MARK"
956 
957 #else  /* SUPPORT_UNICODE */
958 
959 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
960 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
961 only. */
962 
963 #define CHAR_HT                     '\011'
964 #define CHAR_VT                     '\013'
965 #define CHAR_FF                     '\014'
966 #define CHAR_CR                     '\015'
967 #define CHAR_LF                     '\012'
968 #define CHAR_NL                     CHAR_LF
969 #define CHAR_NEL                    ((unsigned char)'\x85')
970 #define CHAR_BS                     '\010'
971 #define CHAR_BEL                    '\007'
972 #define CHAR_ESC                    '\033'
973 #define CHAR_DEL                    '\177'
974 
975 #define CHAR_NUL                    '\0'
976 #define CHAR_SPACE                  '\040'
977 #define CHAR_EXCLAMATION_MARK       '\041'
978 #define CHAR_QUOTATION_MARK         '\042'
979 #define CHAR_NUMBER_SIGN            '\043'
980 #define CHAR_DOLLAR_SIGN            '\044'
981 #define CHAR_PERCENT_SIGN           '\045'
982 #define CHAR_AMPERSAND              '\046'
983 #define CHAR_APOSTROPHE             '\047'
984 #define CHAR_LEFT_PARENTHESIS       '\050'
985 #define CHAR_RIGHT_PARENTHESIS      '\051'
986 #define CHAR_ASTERISK               '\052'
987 #define CHAR_PLUS                   '\053'
988 #define CHAR_COMMA                  '\054'
989 #define CHAR_MINUS                  '\055'
990 #define CHAR_DOT                    '\056'
991 #define CHAR_SLASH                  '\057'
992 #define CHAR_0                      '\060'
993 #define CHAR_1                      '\061'
994 #define CHAR_2                      '\062'
995 #define CHAR_3                      '\063'
996 #define CHAR_4                      '\064'
997 #define CHAR_5                      '\065'
998 #define CHAR_6                      '\066'
999 #define CHAR_7                      '\067'
1000 #define CHAR_8                      '\070'
1001 #define CHAR_9                      '\071'
1002 #define CHAR_COLON                  '\072'
1003 #define CHAR_SEMICOLON              '\073'
1004 #define CHAR_LESS_THAN_SIGN         '\074'
1005 #define CHAR_EQUALS_SIGN            '\075'
1006 #define CHAR_GREATER_THAN_SIGN      '\076'
1007 #define CHAR_QUESTION_MARK          '\077'
1008 #define CHAR_COMMERCIAL_AT          '\100'
1009 #define CHAR_A                      '\101'
1010 #define CHAR_B                      '\102'
1011 #define CHAR_C                      '\103'
1012 #define CHAR_D                      '\104'
1013 #define CHAR_E                      '\105'
1014 #define CHAR_F                      '\106'
1015 #define CHAR_G                      '\107'
1016 #define CHAR_H                      '\110'
1017 #define CHAR_I                      '\111'
1018 #define CHAR_J                      '\112'
1019 #define CHAR_K                      '\113'
1020 #define CHAR_L                      '\114'
1021 #define CHAR_M                      '\115'
1022 #define CHAR_N                      '\116'
1023 #define CHAR_O                      '\117'
1024 #define CHAR_P                      '\120'
1025 #define CHAR_Q                      '\121'
1026 #define CHAR_R                      '\122'
1027 #define CHAR_S                      '\123'
1028 #define CHAR_T                      '\124'
1029 #define CHAR_U                      '\125'
1030 #define CHAR_V                      '\126'
1031 #define CHAR_W                      '\127'
1032 #define CHAR_X                      '\130'
1033 #define CHAR_Y                      '\131'
1034 #define CHAR_Z                      '\132'
1035 #define CHAR_LEFT_SQUARE_BRACKET    '\133'
1036 #define CHAR_BACKSLASH              '\134'
1037 #define CHAR_RIGHT_SQUARE_BRACKET   '\135'
1038 #define CHAR_CIRCUMFLEX_ACCENT      '\136'
1039 #define CHAR_UNDERSCORE             '\137'
1040 #define CHAR_GRAVE_ACCENT           '\140'
1041 #define CHAR_a                      '\141'
1042 #define CHAR_b                      '\142'
1043 #define CHAR_c                      '\143'
1044 #define CHAR_d                      '\144'
1045 #define CHAR_e                      '\145'
1046 #define CHAR_f                      '\146'
1047 #define CHAR_g                      '\147'
1048 #define CHAR_h                      '\150'
1049 #define CHAR_i                      '\151'
1050 #define CHAR_j                      '\152'
1051 #define CHAR_k                      '\153'
1052 #define CHAR_l                      '\154'
1053 #define CHAR_m                      '\155'
1054 #define CHAR_n                      '\156'
1055 #define CHAR_o                      '\157'
1056 #define CHAR_p                      '\160'
1057 #define CHAR_q                      '\161'
1058 #define CHAR_r                      '\162'
1059 #define CHAR_s                      '\163'
1060 #define CHAR_t                      '\164'
1061 #define CHAR_u                      '\165'
1062 #define CHAR_v                      '\166'
1063 #define CHAR_w                      '\167'
1064 #define CHAR_x                      '\170'
1065 #define CHAR_y                      '\171'
1066 #define CHAR_z                      '\172'
1067 #define CHAR_LEFT_CURLY_BRACKET     '\173'
1068 #define CHAR_VERTICAL_LINE          '\174'
1069 #define CHAR_RIGHT_CURLY_BRACKET    '\175'
1070 #define CHAR_TILDE                  '\176'
1071 #define CHAR_NBSP                   ((unsigned char)'\xa0')
1072 
1073 #define STR_HT                      "\011"
1074 #define STR_VT                      "\013"
1075 #define STR_FF                      "\014"
1076 #define STR_CR                      "\015"
1077 #define STR_NL                      "\012"
1078 #define STR_BS                      "\010"
1079 #define STR_BEL                     "\007"
1080 #define STR_ESC                     "\033"
1081 #define STR_DEL                     "\177"
1082 
1083 #define STR_SPACE                   "\040"
1084 #define STR_EXCLAMATION_MARK        "\041"
1085 #define STR_QUOTATION_MARK          "\042"
1086 #define STR_NUMBER_SIGN             "\043"
1087 #define STR_DOLLAR_SIGN             "\044"
1088 #define STR_PERCENT_SIGN            "\045"
1089 #define STR_AMPERSAND               "\046"
1090 #define STR_APOSTROPHE              "\047"
1091 #define STR_LEFT_PARENTHESIS        "\050"
1092 #define STR_RIGHT_PARENTHESIS       "\051"
1093 #define STR_ASTERISK                "\052"
1094 #define STR_PLUS                    "\053"
1095 #define STR_COMMA                   "\054"
1096 #define STR_MINUS                   "\055"
1097 #define STR_DOT                     "\056"
1098 #define STR_SLASH                   "\057"
1099 #define STR_0                       "\060"
1100 #define STR_1                       "\061"
1101 #define STR_2                       "\062"
1102 #define STR_3                       "\063"
1103 #define STR_4                       "\064"
1104 #define STR_5                       "\065"
1105 #define STR_6                       "\066"
1106 #define STR_7                       "\067"
1107 #define STR_8                       "\070"
1108 #define STR_9                       "\071"
1109 #define STR_COLON                   "\072"
1110 #define STR_SEMICOLON               "\073"
1111 #define STR_LESS_THAN_SIGN          "\074"
1112 #define STR_EQUALS_SIGN             "\075"
1113 #define STR_GREATER_THAN_SIGN       "\076"
1114 #define STR_QUESTION_MARK           "\077"
1115 #define STR_COMMERCIAL_AT           "\100"
1116 #define STR_A                       "\101"
1117 #define STR_B                       "\102"
1118 #define STR_C                       "\103"
1119 #define STR_D                       "\104"
1120 #define STR_E                       "\105"
1121 #define STR_F                       "\106"
1122 #define STR_G                       "\107"
1123 #define STR_H                       "\110"
1124 #define STR_I                       "\111"
1125 #define STR_J                       "\112"
1126 #define STR_K                       "\113"
1127 #define STR_L                       "\114"
1128 #define STR_M                       "\115"
1129 #define STR_N                       "\116"
1130 #define STR_O                       "\117"
1131 #define STR_P                       "\120"
1132 #define STR_Q                       "\121"
1133 #define STR_R                       "\122"
1134 #define STR_S                       "\123"
1135 #define STR_T                       "\124"
1136 #define STR_U                       "\125"
1137 #define STR_V                       "\126"
1138 #define STR_W                       "\127"
1139 #define STR_X                       "\130"
1140 #define STR_Y                       "\131"
1141 #define STR_Z                       "\132"
1142 #define STR_LEFT_SQUARE_BRACKET     "\133"
1143 #define STR_BACKSLASH               "\134"
1144 #define STR_RIGHT_SQUARE_BRACKET    "\135"
1145 #define STR_CIRCUMFLEX_ACCENT       "\136"
1146 #define STR_UNDERSCORE              "\137"
1147 #define STR_GRAVE_ACCENT            "\140"
1148 #define STR_a                       "\141"
1149 #define STR_b                       "\142"
1150 #define STR_c                       "\143"
1151 #define STR_d                       "\144"
1152 #define STR_e                       "\145"
1153 #define STR_f                       "\146"
1154 #define STR_g                       "\147"
1155 #define STR_h                       "\150"
1156 #define STR_i                       "\151"
1157 #define STR_j                       "\152"
1158 #define STR_k                       "\153"
1159 #define STR_l                       "\154"
1160 #define STR_m                       "\155"
1161 #define STR_n                       "\156"
1162 #define STR_o                       "\157"
1163 #define STR_p                       "\160"
1164 #define STR_q                       "\161"
1165 #define STR_r                       "\162"
1166 #define STR_s                       "\163"
1167 #define STR_t                       "\164"
1168 #define STR_u                       "\165"
1169 #define STR_v                       "\166"
1170 #define STR_w                       "\167"
1171 #define STR_x                       "\170"
1172 #define STR_y                       "\171"
1173 #define STR_z                       "\172"
1174 #define STR_LEFT_CURLY_BRACKET      "\173"
1175 #define STR_VERTICAL_LINE           "\174"
1176 #define STR_RIGHT_CURLY_BRACKET     "\175"
1177 #define STR_TILDE                   "\176"
1178 
1179 #define STRING_ACCEPT0               STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1180 #define STRING_COMMIT0               STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1181 #define STRING_F0                    STR_F "\0"
1182 #define STRING_FAIL0                 STR_F STR_A STR_I STR_L "\0"
1183 #define STRING_MARK0                 STR_M STR_A STR_R STR_K "\0"
1184 #define STRING_PRUNE0                STR_P STR_R STR_U STR_N STR_E "\0"
1185 #define STRING_SKIP0                 STR_S STR_K STR_I STR_P "\0"
1186 #define STRING_THEN                  STR_T STR_H STR_E STR_N
1187 
1188 #define STRING_atomic0               STR_a STR_t STR_o STR_m STR_i STR_c "\0"
1189 #define STRING_pla0                  STR_p STR_l STR_a "\0"
1190 #define STRING_plb0                  STR_p STR_l STR_b "\0"
1191 #define STRING_napla0                STR_n STR_a STR_p STR_l STR_a "\0"
1192 #define STRING_naplb0                STR_n STR_a STR_p STR_l STR_b "\0"
1193 #define STRING_nla0                  STR_n STR_l STR_a "\0"
1194 #define STRING_nlb0                  STR_n STR_l STR_b "\0"
1195 #define STRING_sr0                   STR_s STR_r "\0"
1196 #define STRING_asr0                  STR_a STR_s STR_r "\0"
1197 #define STRING_positive_lookahead0   STR_p STR_o STR_s STR_i STR_t STR_i STR_v STR_e STR_UNDERSCORE STR_l STR_o STR_o STR_k STR_a STR_h STR_e STR_a STR_d "\0"
1198 #define STRING_positive_lookbehind0  STR_p STR_o STR_s STR_i STR_t STR_i STR_v STR_e STR_UNDERSCORE STR_l STR_o STR_o STR_k STR_b STR_e STR_h STR_i STR_n STR_d "\0"
1199 #define STRING_non_atomic_positive_lookahead0   STR_n STR_o STR_n STR_UNDERSCORE STR_a STR_t STR_o STR_m STR_i STR_c STR_UNDERSCORE STR_p STR_o STR_s STR_i STR_t STR_i STR_v STR_e STR_UNDERSCORE STR_l STR_o STR_o STR_k STR_a STR_h STR_e STR_a STR_d "\0"
1200 #define STRING_non_atomic_positive_lookbehind0  STR_n STR_o STR_n STR_UNDERSCORE STR_a STR_t STR_o STR_m STR_i STR_c STR_UNDERSCORE STR_p STR_o STR_s STR_i STR_t STR_i STR_v STR_e STR_UNDERSCORE STR_l STR_o STR_o STR_k STR_b STR_e STR_h STR_i STR_n STR_d "\0"
1201 #define STRING_negative_lookahead0   STR_n STR_e STR_g STR_a STR_t STR_i STR_v STR_e STR_UNDERSCORE STR_l STR_o STR_o STR_k STR_a STR_h STR_e STR_a STR_d "\0"
1202 #define STRING_negative_lookbehind0  STR_n STR_e STR_g STR_a STR_t STR_i STR_v STR_e STR_UNDERSCORE STR_l STR_o STR_o STR_k STR_b STR_e STR_h STR_i STR_n STR_d "\0"
1203 #define STRING_script_run0           STR_s STR_c STR_r STR_i STR_p STR_t STR_UNDERSCORE STR_r STR_u STR_n "\0"
1204 #define STRING_atomic_script_run     STR_a STR_t STR_o STR_m STR_i STR_c STR_UNDERSCORE STR_s STR_c STR_r STR_i STR_p STR_t STR_UNDERSCORE STR_r STR_u STR_n
1205 
1206 #define STRING_alpha0                STR_a STR_l STR_p STR_h STR_a "\0"
1207 #define STRING_lower0                STR_l STR_o STR_w STR_e STR_r "\0"
1208 #define STRING_upper0                STR_u STR_p STR_p STR_e STR_r "\0"
1209 #define STRING_alnum0                STR_a STR_l STR_n STR_u STR_m "\0"
1210 #define STRING_ascii0                STR_a STR_s STR_c STR_i STR_i "\0"
1211 #define STRING_blank0                STR_b STR_l STR_a STR_n STR_k "\0"
1212 #define STRING_cntrl0                STR_c STR_n STR_t STR_r STR_l "\0"
1213 #define STRING_digit0                STR_d STR_i STR_g STR_i STR_t "\0"
1214 #define STRING_graph0                STR_g STR_r STR_a STR_p STR_h "\0"
1215 #define STRING_print0                STR_p STR_r STR_i STR_n STR_t "\0"
1216 #define STRING_punct0                STR_p STR_u STR_n STR_c STR_t "\0"
1217 #define STRING_space0                STR_s STR_p STR_a STR_c STR_e "\0"
1218 #define STRING_word0                 STR_w STR_o STR_r STR_d       "\0"
1219 #define STRING_xdigit                STR_x STR_d STR_i STR_g STR_i STR_t
1220 
1221 #define STRING_DEFINE                STR_D STR_E STR_F STR_I STR_N STR_E
1222 #define STRING_VERSION               STR_V STR_E STR_R STR_S STR_I STR_O STR_N
1223 #define STRING_WEIRD_STARTWORD       STR_LEFT_SQUARE_BRACKET STR_COLON STR_LESS_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
1224 #define STRING_WEIRD_ENDWORD         STR_LEFT_SQUARE_BRACKET STR_COLON STR_GREATER_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
1225 
1226 #define STRING_CR_RIGHTPAR                STR_C STR_R STR_RIGHT_PARENTHESIS
1227 #define STRING_LF_RIGHTPAR                STR_L STR_F STR_RIGHT_PARENTHESIS
1228 #define STRING_CRLF_RIGHTPAR              STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1229 #define STRING_ANY_RIGHTPAR               STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1230 #define STRING_ANYCRLF_RIGHTPAR           STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1231 #define STRING_NUL_RIGHTPAR               STR_N STR_U STR_L STR_RIGHT_PARENTHESIS
1232 #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
1233 #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
1234 #define STRING_UTF8_RIGHTPAR              STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1235 #define STRING_UTF16_RIGHTPAR             STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1236 #define STRING_UTF32_RIGHTPAR             STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1237 #define STRING_UTF_RIGHTPAR               STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1238 #define STRING_UCP_RIGHTPAR               STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1239 #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
1240 #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
1241 #define STRING_NO_JIT_RIGHTPAR            STR_N STR_O STR_UNDERSCORE STR_J STR_I STR_T STR_RIGHT_PARENTHESIS
1242 #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
1243 #define STRING_NOTEMPTY_RIGHTPAR          STR_N STR_O STR_T STR_E STR_M STR_P STR_T STR_Y STR_RIGHT_PARENTHESIS
1244 #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
1245 #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
1246 #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
1247 #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
1248 #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
1249 #define STRING_MARK                       STR_M STR_A STR_R STR_K
1250 
1251 #endif  /* SUPPORT_UNICODE */
1252 
1253 /* -------------------- End of character and string names -------------------*/
1254 
1255 /* -------------------- Definitions for compiled patterns -------------------*/
1256 
1257 /* Codes for different types of Unicode property */
1258 
1259 #define PT_ANY        0    /* Any property - matches all chars */
1260 #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */
1261 #define PT_GC         2    /* Specified general characteristic (e.g. L) */
1262 #define PT_PC         3    /* Specified particular characteristic (e.g. Lu) */
1263 #define PT_SC         4    /* Script (e.g. Han) */
1264 #define PT_ALNUM      5    /* Alphanumeric - the union of L and N */
1265 #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
1266 #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
1267 #define PT_WORD       8    /* Word - L plus N plus underscore */
1268 #define PT_CLIST      9    /* Pseudo-property: match character list */
1269 #define PT_UCNC      10    /* Universal Character nameable character */
1270 #define PT_TABSIZE   11    /* Size of square table for autopossessify tests */
1271 
1272 /* The following special properties are used only in XCLASS items, when POSIX
1273 classes are specified and PCRE2_UCP is set - in other words, for Unicode
1274 handling of these classes. They are not available via the \p or \P escapes like
1275 those in the above list, and so they do not take part in the autopossessifying
1276 table. */
1277 
1278 #define PT_PXGRAPH   11    /* [:graph:] - characters that mark the paper */
1279 #define PT_PXPRINT   12    /* [:print:] - [:graph:] plus non-control spaces */
1280 #define PT_PXPUNCT   13    /* [:punct:] - punctuation characters */
1281 
1282 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1283 contain characters with values greater than 255. */
1284 
1285 #define XCL_NOT       0x01    /* Flag: this is a negative class */
1286 #define XCL_MAP       0x02    /* Flag: a 32-byte map is present */
1287 #define XCL_HASPROP   0x04    /* Flag: property checks are present. */
1288 
1289 #define XCL_END       0    /* Marks end of individual items */
1290 #define XCL_SINGLE    1    /* Single item (one multibyte char) follows */
1291 #define XCL_RANGE     2    /* A range (two multibyte chars) follows */
1292 #define XCL_PROP      3    /* Unicode property (2-byte property code follows) */
1293 #define XCL_NOTPROP   4    /* Unicode inverted property (ditto) */
1294 
1295 /* These are escaped items that aren't just an encoding of a particular data
1296 value such as \n. They must have non-zero values, as check_escape() returns 0
1297 for a data character. In the escapes[] table in pcre2_compile.c their values
1298 are negated in order to distinguish them from data values.
1299 
1300 They must appear here in the same order as in the opcode definitions below, up
1301 to ESC_z. There's a dummy for OP_ALLANY because it corresponds to "." in DOTALL
1302 mode rather than an escape sequence. It is also used for [^] in JavaScript
1303 compatibility mode, and for \C in non-utf mode. In non-DOTALL mode, "." behaves
1304 like \N.
1305 
1306 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1307 check_escape(). There are tests in the code for an escape greater than ESC_b
1308 and less than ESC_Z to detect the types that may be repeated. These are the
1309 types that consume characters. If any new escapes are put in between that don't
1310 consume a character, that code will have to change. */
1311 
1312 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1313        ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1314        ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1315        ESC_E, ESC_Q, ESC_g, ESC_k };
1316 
1317 
1318 /********************** Opcode definitions ******************/
1319 
1320 /****** NOTE NOTE NOTE ******
1321 
1322 Starting from 1 (i.e. after OP_END), the values up to OP_EOD must correspond in
1323 order to the list of escapes immediately above. Furthermore, values up to
1324 OP_DOLLM must not be changed without adjusting the table called autoposstab in
1325 pcre2_auto_possess.c.
1326 
1327 Whenever this list is updated, the two macro definitions that follow must be
1328 updated to match. The possessification table called "opcode_possessify" in
1329 pcre2_compile.c must also be updated, and also the tables called "coptable"
1330 and "poptable" in pcre2_dfa_match.c.
1331 
1332 ****** NOTE NOTE NOTE ******/
1333 
1334 
1335 /* The values between FIRST_AUTOTAB_OP and LAST_AUTOTAB_RIGHT_OP, inclusive,
1336 are used in a table for deciding whether a repeated character type can be
1337 auto-possessified. */
1338 
1339 #define FIRST_AUTOTAB_OP       OP_NOT_DIGIT
1340 #define LAST_AUTOTAB_LEFT_OP   OP_EXTUNI
1341 #define LAST_AUTOTAB_RIGHT_OP  OP_DOLLM
1342 
1343 enum {
1344   OP_END,            /* 0 End of pattern */
1345 
1346   /* Values corresponding to backslashed metacharacters */
1347 
1348   OP_SOD,            /* 1 Start of data: \A */
1349   OP_SOM,            /* 2 Start of match (subject + offset): \G */
1350   OP_SET_SOM,        /* 3 Set start of match (\K) */
1351   OP_NOT_WORD_BOUNDARY,  /*  4 \B */
1352   OP_WORD_BOUNDARY,      /*  5 \b */
1353   OP_NOT_DIGIT,          /*  6 \D */
1354   OP_DIGIT,              /*  7 \d */
1355   OP_NOT_WHITESPACE,     /*  8 \S */
1356   OP_WHITESPACE,         /*  9 \s */
1357   OP_NOT_WORDCHAR,       /* 10 \W */
1358   OP_WORDCHAR,           /* 11 \w */
1359 
1360   OP_ANY,            /* 12 Match any character except newline (\N) */
1361   OP_ALLANY,         /* 13 Match any character */
1362   OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1363   OP_NOTPROP,        /* 15 \P (not Unicode property) */
1364   OP_PROP,           /* 16 \p (Unicode property) */
1365   OP_ANYNL,          /* 17 \R (any newline sequence) */
1366   OP_NOT_HSPACE,     /* 18 \H (not horizontal whitespace) */
1367   OP_HSPACE,         /* 19 \h (horizontal whitespace) */
1368   OP_NOT_VSPACE,     /* 20 \V (not vertical whitespace) */
1369   OP_VSPACE,         /* 21 \v (vertical whitespace) */
1370   OP_EXTUNI,         /* 22 \X (extended Unicode sequence */
1371   OP_EODN,           /* 23 End of data or \n at end of data (\Z) */
1372   OP_EOD,            /* 24 End of data (\z) */
1373 
1374   /* Line end assertions */
1375 
1376   OP_DOLL,           /* 25 End of line - not multiline */
1377   OP_DOLLM,          /* 26 End of line - multiline */
1378   OP_CIRC,           /* 27 Start of line - not multiline */
1379   OP_CIRCM,          /* 28 Start of line - multiline */
1380 
1381   /* Single characters; caseful must precede the caseless ones, and these
1382   must remain in this order, and adjacent. */
1383 
1384   OP_CHAR,           /* 29 Match one character, casefully */
1385   OP_CHARI,          /* 30 Match one character, caselessly */
1386   OP_NOT,            /* 31 Match one character, not the given one, casefully */
1387   OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
1388 
1389   /* The following sets of 13 opcodes must always be kept in step because
1390   the offset from the first one is used to generate the others. */
1391 
1392   /* Repeated characters; caseful must precede the caseless ones */
1393 
1394   OP_STAR,           /* 33 The maximizing and minimizing versions of */
1395   OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
1396   OP_PLUS,           /* 35 the minimizing one second. */
1397   OP_MINPLUS,        /* 36 */
1398   OP_QUERY,          /* 37 */
1399   OP_MINQUERY,       /* 38 */
1400 
1401   OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
1402   OP_MINUPTO,        /* 40 */
1403   OP_EXACT,          /* 41 Exactly n matches */
1404 
1405   OP_POSSTAR,        /* 42 Possessified star, caseful */
1406   OP_POSPLUS,        /* 43 Possessified plus, caseful */
1407   OP_POSQUERY,       /* 44 Posesssified query, caseful */
1408   OP_POSUPTO,        /* 45 Possessified upto, caseful */
1409 
1410   /* Repeated characters; caseless must follow the caseful ones */
1411 
1412   OP_STARI,          /* 46 */
1413   OP_MINSTARI,       /* 47 */
1414   OP_PLUSI,          /* 48 */
1415   OP_MINPLUSI,       /* 49 */
1416   OP_QUERYI,         /* 50 */
1417   OP_MINQUERYI,      /* 51 */
1418 
1419   OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
1420   OP_MINUPTOI,       /* 53 */
1421   OP_EXACTI,         /* 54 */
1422 
1423   OP_POSSTARI,       /* 55 Possessified star, caseless */
1424   OP_POSPLUSI,       /* 56 Possessified plus, caseless */
1425   OP_POSQUERYI,      /* 57 Posesssified query, caseless */
1426   OP_POSUPTOI,       /* 58 Possessified upto, caseless */
1427 
1428   /* The negated ones must follow the non-negated ones, and match them */
1429   /* Negated repeated character, caseful; must precede the caseless ones */
1430 
1431   OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
1432   OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
1433   OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
1434   OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
1435   OP_NOTQUERY,       /* 63 */
1436   OP_NOTMINQUERY,    /* 64 */
1437 
1438   OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
1439   OP_NOTMINUPTO,     /* 66 */
1440   OP_NOTEXACT,       /* 67 Exactly n matches */
1441 
1442   OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
1443   OP_NOTPOSPLUS,     /* 69 */
1444   OP_NOTPOSQUERY,    /* 70 */
1445   OP_NOTPOSUPTO,     /* 71 */
1446 
1447   /* Negated repeated character, caseless; must follow the caseful ones */
1448 
1449   OP_NOTSTARI,       /* 72 */
1450   OP_NOTMINSTARI,    /* 73 */
1451   OP_NOTPLUSI,       /* 74 */
1452   OP_NOTMINPLUSI,    /* 75 */
1453   OP_NOTQUERYI,      /* 76 */
1454   OP_NOTMINQUERYI,   /* 77 */
1455 
1456   OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
1457   OP_NOTMINUPTOI,    /* 79 */
1458   OP_NOTEXACTI,      /* 80 Exactly n matches */
1459 
1460   OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
1461   OP_NOTPOSPLUSI,    /* 82 */
1462   OP_NOTPOSQUERYI,   /* 83 */
1463   OP_NOTPOSUPTOI,    /* 84 */
1464 
1465   /* Character types */
1466 
1467   OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
1468   OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
1469   OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
1470   OP_TYPEMINPLUS,    /* 88 be in exactly the same order as those above. */
1471   OP_TYPEQUERY,      /* 89 */
1472   OP_TYPEMINQUERY,   /* 90 */
1473 
1474   OP_TYPEUPTO,       /* 91 From 0 to n matches */
1475   OP_TYPEMINUPTO,    /* 92 */
1476   OP_TYPEEXACT,      /* 93 Exactly n matches */
1477 
1478   OP_TYPEPOSSTAR,    /* 94 Possessified versions */
1479   OP_TYPEPOSPLUS,    /* 95 */
1480   OP_TYPEPOSQUERY,   /* 96 */
1481   OP_TYPEPOSUPTO,    /* 97 */
1482 
1483   /* These are used for character classes and back references; only the
1484   first six are the same as the sets above. */
1485 
1486   OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
1487   OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
1488   OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
1489   OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
1490   OP_CRQUERY,        /* 102 */
1491   OP_CRMINQUERY,     /* 103 */
1492 
1493   OP_CRRANGE,        /* 104 These are different to the three sets above. */
1494   OP_CRMINRANGE,     /* 105 */
1495 
1496   OP_CRPOSSTAR,      /* 106 Possessified versions */
1497   OP_CRPOSPLUS,      /* 107 */
1498   OP_CRPOSQUERY,     /* 108 */
1499   OP_CRPOSRANGE,     /* 109 */
1500 
1501   /* End of quantifier opcodes */
1502 
1503   OP_CLASS,          /* 110 Match a character class, chars < 256 only */
1504   OP_NCLASS,         /* 111 Same, but the bitmap was created from a negative
1505                               class - the difference is relevant only when a
1506                               character > 255 is encountered. */
1507   OP_XCLASS,         /* 112 Extended class for handling > 255 chars within the
1508                               class. This does both positive and negative. */
1509   OP_REF,            /* 113 Match a back reference, casefully */
1510   OP_REFI,           /* 114 Match a back reference, caselessly */
1511   OP_DNREF,          /* 115 Match a duplicate name backref, casefully */
1512   OP_DNREFI,         /* 116 Match a duplicate name backref, caselessly */
1513   OP_RECURSE,        /* 117 Match a numbered subpattern (possibly recursive) */
1514   OP_CALLOUT,        /* 118 Call out to external function if provided */
1515   OP_CALLOUT_STR,    /* 119 Call out with string argument */
1516 
1517   OP_ALT,            /* 120 Start of alternation */
1518   OP_KET,            /* 121 End of group that doesn't have an unbounded repeat */
1519   OP_KETRMAX,        /* 122 These two must remain together and in this */
1520   OP_KETRMIN,        /* 123 order. They are for groups the repeat for ever. */
1521   OP_KETRPOS,        /* 124 Possessive unlimited repeat. */
1522 
1523   /* The assertions must come before BRA, CBRA, ONCE, and COND. */
1524 
1525   OP_REVERSE,        /* 125 Move pointer back - used in lookbehind assertions */
1526   OP_ASSERT,         /* 126 Positive lookahead */
1527   OP_ASSERT_NOT,     /* 127 Negative lookahead */
1528   OP_ASSERTBACK,     /* 128 Positive lookbehind */
1529   OP_ASSERTBACK_NOT, /* 129 Negative lookbehind */
1530   OP_ASSERT_NA,      /* 130 Positive non-atomic lookahead */
1531   OP_ASSERTBACK_NA,  /* 131 Positive non-atomic lookbehind */
1532 
1533   /* ONCE, SCRIPT_RUN, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come
1534   immediately after the assertions, with ONCE first, as there's a test for >=
1535   ONCE for a subpattern that isn't an assertion. The POS versions must
1536   immediately follow the non-POS versions in each case. */
1537 
1538   OP_ONCE,           /* 132 Atomic group, contains captures */
1539   OP_SCRIPT_RUN,     /* 133 Non-capture, but check characters' scripts */
1540   OP_BRA,            /* 134 Start of non-capturing bracket */
1541   OP_BRAPOS,         /* 135 Ditto, with unlimited, possessive repeat */
1542   OP_CBRA,           /* 136 Start of capturing bracket */
1543   OP_CBRAPOS,        /* 137 Ditto, with unlimited, possessive repeat */
1544   OP_COND,           /* 138 Conditional group */
1545 
1546   /* These five must follow the previous five, in the same order. There's a
1547   check for >= SBRA to distinguish the two sets. */
1548 
1549   OP_SBRA,           /* 139 Start of non-capturing bracket, check empty  */
1550   OP_SBRAPOS,        /* 149 Ditto, with unlimited, possessive repeat */
1551   OP_SCBRA,          /* 141 Start of capturing bracket, check empty */
1552   OP_SCBRAPOS,       /* 142 Ditto, with unlimited, possessive repeat */
1553   OP_SCOND,          /* 143 Conditional group, check empty */
1554 
1555   /* The next two pairs must (respectively) be kept together. */
1556 
1557   OP_CREF,           /* 144 Used to hold a capture number as condition */
1558   OP_DNCREF,         /* 145 Used to point to duplicate names as a condition */
1559   OP_RREF,           /* 146 Used to hold a recursion number as condition */
1560   OP_DNRREF,         /* 147 Used to point to duplicate names as a condition */
1561   OP_FALSE,          /* 148 Always false (used by DEFINE and VERSION) */
1562   OP_TRUE,           /* 149 Always true (used by VERSION) */
1563 
1564   OP_BRAZERO,        /* 150 These two must remain together and in this */
1565   OP_BRAMINZERO,     /* 151 order. */
1566   OP_BRAPOSZERO,     /* 152 */
1567 
1568   /* These are backtracking control verbs */
1569 
1570   OP_MARK,           /* 153 always has an argument */
1571   OP_PRUNE,          /* 154 */
1572   OP_PRUNE_ARG,      /* 155 same, but with argument */
1573   OP_SKIP,           /* 156 */
1574   OP_SKIP_ARG,       /* 157 same, but with argument */
1575   OP_THEN,           /* 158 */
1576   OP_THEN_ARG,       /* 159 same, but with argument */
1577   OP_COMMIT,         /* 160 */
1578   OP_COMMIT_ARG,     /* 161 same, but with argument */
1579 
1580   /* These are forced failure and success verbs. FAIL and ACCEPT do accept an
1581   argument, but these cases can be compiled as, for example, (*MARK:X)(*FAIL)
1582   without the need for a special opcode. */
1583 
1584   OP_FAIL,           /* 162 */
1585   OP_ACCEPT,         /* 163 */
1586   OP_ASSERT_ACCEPT,  /* 164 Used inside assertions */
1587   OP_CLOSE,          /* 165 Used before OP_ACCEPT to close open captures */
1588 
1589   /* This is used to skip a subpattern with a {0} quantifier */
1590 
1591   OP_SKIPZERO,       /* 166 */
1592 
1593   /* This is used to identify a DEFINE group during compilation so that it can
1594   be checked for having only one branch. It is changed to OP_FALSE before
1595   compilation finishes. */
1596 
1597   OP_DEFINE,         /* 167 */
1598 
1599   /* This is not an opcode, but is used to check that tables indexed by opcode
1600   are the correct length, in order to catch updating errors - there have been
1601   some in the past. */
1602 
1603   OP_TABLE_LENGTH
1604 
1605 };
1606 
1607 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1608 definitions that follow must also be updated to match. There are also tables
1609 called "opcode_possessify" in pcre2_compile.c and "coptable" and "poptable" in
1610 pcre2_dfa_match.c that must be updated. */
1611 
1612 
1613 /* This macro defines textual names for all the opcodes. These are used only
1614 for debugging, and some of them are only partial names. The macro is referenced
1615 only in pcre2_printint.c, which fills out the full names in many cases (and in
1616 some cases doesn't actually use these names at all). */
1617 
1618 #define OP_NAME_LIST \
1619   "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
1620   "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
1621   "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
1622   "extuni",  "\\Z", "\\z",                                        \
1623   "$", "$", "^", "^", "char", "chari", "not", "noti",             \
1624   "*", "*?", "+", "+?", "?", "??",                                \
1625   "{", "{", "{",                                                  \
1626   "*+","++", "?+", "{",                                           \
1627   "*", "*?", "+", "+?", "?", "??",                                \
1628   "{", "{", "{",                                                  \
1629   "*+","++", "?+", "{",                                           \
1630   "*", "*?", "+", "+?", "?", "??",                                \
1631   "{", "{", "{",                                                  \
1632   "*+","++", "?+", "{",                                           \
1633   "*", "*?", "+", "+?", "?", "??",                                \
1634   "{", "{", "{",                                                  \
1635   "*+","++", "?+", "{",                                           \
1636   "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
1637   "*+","++", "?+", "{",                                           \
1638   "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
1639   "*+","++", "?+", "{",                                           \
1640   "class", "nclass", "xclass", "Ref", "Refi", "DnRef", "DnRefi",  \
1641   "Recurse", "Callout", "CalloutStr",                             \
1642   "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
1643   "Reverse", "Assert", "Assert not",                              \
1644   "Assert back", "Assert back not",                               \
1645   "Non-atomic assert", "Non-atomic assert back",                  \
1646   "Once",                                                         \
1647   "Script run",                                                   \
1648   "Bra", "BraPos", "CBra", "CBraPos",                             \
1649   "Cond",                                                         \
1650   "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
1651   "SCond",                                                        \
1652   "Cond ref", "Cond dnref", "Cond rec", "Cond dnrec",             \
1653   "Cond false", "Cond true",                                      \
1654   "Brazero", "Braminzero", "Braposzero",                          \
1655   "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
1656   "*THEN", "*THEN", "*COMMIT", "*COMMIT", "*FAIL",                \
1657   "*ACCEPT", "*ASSERT_ACCEPT",                                    \
1658   "Close", "Skip zero", "Define"
1659 
1660 
1661 /* This macro defines the length of fixed length operations in the compiled
1662 regex. The lengths are used when searching for specific things, and also in the
1663 debugging printing of a compiled regex. We use a macro so that it can be
1664 defined close to the definitions of the opcodes themselves.
1665 
1666 As things have been extended, some of these are no longer fixed lenths, but are
1667 minima instead. For example, the length of a single-character repeat may vary
1668 in UTF-8 mode. The code that uses this table must know about such things. */
1669 
1670 #define OP_LENGTHS \
1671   1,                             /* End                                    */ \
1672   1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
1673   1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
1674   1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
1675   3, 3,                          /* \P, \p                                 */ \
1676   1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
1677   1,                             /* \X                                     */ \
1678   1, 1, 1, 1, 1, 1,              /* \Z, \z, $, $M ^, ^M                    */ \
1679   2,                             /* Char  - the minimum length             */ \
1680   2,                             /* Chari  - the minimum length            */ \
1681   2,                             /* not                                    */ \
1682   2,                             /* noti                                   */ \
1683   /* Positive single-char repeats                             ** These are */ \
1684   2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
1685   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto, minupto             ** mode      */ \
1686   2+IMM2_SIZE,                   /* exact                                  */ \
1687   2, 2, 2, 2+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */ \
1688   2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
1689   2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto I, minupto I                      */ \
1690   2+IMM2_SIZE,                   /* exact I                                */ \
1691   2, 2, 2, 2+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */ \
1692   /* Negative single-char repeats - only for chars < 256                   */ \
1693   2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
1694   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto, minupto                      */ \
1695   2+IMM2_SIZE,                   /* NOT exact                              */ \
1696   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *, +, ?, upto           */ \
1697   2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
1698   2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto I, minupto I                  */ \
1699   2+IMM2_SIZE,                   /* NOT exact I                            */ \
1700   2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *I, +I, ?I, upto I      */ \
1701   /* Positive type repeats                                                 */ \
1702   2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
1703   2+IMM2_SIZE, 2+IMM2_SIZE,      /* Type upto, minupto                     */ \
1704   2+IMM2_SIZE,                   /* Type exact                             */ \
1705   2, 2, 2, 2+IMM2_SIZE,          /* Possessive *+, ++, ?+, upto+           */ \
1706   /* Character class & ref repeats                                         */ \
1707   1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
1708   1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
1709   1, 1, 1, 1+2*IMM2_SIZE,        /* Possessive *+, ++, ?+, CRPOSRANGE      */ \
1710   1+(32/sizeof(PCRE2_UCHAR)),    /* CLASS                                  */ \
1711   1+(32/sizeof(PCRE2_UCHAR)),    /* NCLASS                                 */ \
1712   0,                             /* XCLASS - variable length               */ \
1713   1+IMM2_SIZE,                   /* REF                                    */ \
1714   1+IMM2_SIZE,                   /* REFI                                   */ \
1715   1+2*IMM2_SIZE,                 /* DNREF                                  */ \
1716   1+2*IMM2_SIZE,                 /* DNREFI                                 */ \
1717   1+LINK_SIZE,                   /* RECURSE                                */ \
1718   1+2*LINK_SIZE+1,               /* CALLOUT                                */ \
1719   0,                             /* CALLOUT_STR - variable length          */ \
1720   1+LINK_SIZE,                   /* Alt                                    */ \
1721   1+LINK_SIZE,                   /* Ket                                    */ \
1722   1+LINK_SIZE,                   /* KetRmax                                */ \
1723   1+LINK_SIZE,                   /* KetRmin                                */ \
1724   1+LINK_SIZE,                   /* KetRpos                                */ \
1725   1+LINK_SIZE,                   /* Reverse                                */ \
1726   1+LINK_SIZE,                   /* Assert                                 */ \
1727   1+LINK_SIZE,                   /* Assert not                             */ \
1728   1+LINK_SIZE,                   /* Assert behind                          */ \
1729   1+LINK_SIZE,                   /* Assert behind not                      */ \
1730   1+LINK_SIZE,                   /* NA Assert                              */ \
1731   1+LINK_SIZE,                   /* NA Assert behind                       */ \
1732   1+LINK_SIZE,                   /* ONCE                                   */ \
1733   1+LINK_SIZE,                   /* SCRIPT_RUN                             */ \
1734   1+LINK_SIZE,                   /* BRA                                    */ \
1735   1+LINK_SIZE,                   /* BRAPOS                                 */ \
1736   1+LINK_SIZE+IMM2_SIZE,         /* CBRA                                   */ \
1737   1+LINK_SIZE+IMM2_SIZE,         /* CBRAPOS                                */ \
1738   1+LINK_SIZE,                   /* COND                                   */ \
1739   1+LINK_SIZE,                   /* SBRA                                   */ \
1740   1+LINK_SIZE,                   /* SBRAPOS                                */ \
1741   1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
1742   1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
1743   1+LINK_SIZE,                   /* SCOND                                  */ \
1744   1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* CREF, DNCREF                           */ \
1745   1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* RREF, DNRREF                           */ \
1746   1, 1,                          /* FALSE, TRUE                            */ \
1747   1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
1748   3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
1749   1, 3,                          /* SKIP, SKIP_ARG                         */ \
1750   1, 3,                          /* THEN, THEN_ARG                         */ \
1751   1, 3,                          /* COMMIT, COMMIT_ARG                     */ \
1752   1, 1, 1,                       /* FAIL, ACCEPT, ASSERT_ACCEPT            */ \
1753   1+IMM2_SIZE, 1,                /* CLOSE, SKIPZERO                        */ \
1754   1                              /* DEFINE                                 */
1755 
1756 /* A magic value for OP_RREF to indicate the "any recursion" condition. */
1757 
1758 #define RREF_ANY  0xffff
1759 
1760 
1761 /* ---------- Private structures that are mode-independent. ---------- */
1762 
1763 /* Structure to hold data for custom memory management. */
1764 
1765 typedef struct pcre2_memctl {
1766   void *    (*malloc)(size_t, void *);
1767   void      (*free)(void *, void *);
1768   void      *memory_data;
1769 } pcre2_memctl;
1770 
1771 /* Structure for building a chain of open capturing subpatterns during
1772 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
1773 encountered. */
1774 
1775 typedef struct open_capitem {
1776   struct open_capitem *next;    /* Chain link */
1777   uint16_t number;              /* Capture number */
1778   uint16_t assert_depth;        /* Assertion depth when opened */
1779 } open_capitem;
1780 
1781 /* Layout of the UCP type table that translates property names into types and
1782 codes. Each entry used to point directly to a name, but to reduce the number of
1783 relocations in shared libraries, it now has an offset into a single string
1784 instead. */
1785 
1786 typedef struct {
1787   uint16_t name_offset;
1788   uint16_t type;
1789   uint16_t value;
1790 } ucp_type_table;
1791 
1792 /* Unicode character database (UCD) record format */
1793 
1794 typedef struct {
1795   uint8_t script;     /* ucp_Arabic, etc. */
1796   uint8_t chartype;   /* ucp_Cc, etc. (general categories) */
1797   uint8_t gbprop;     /* ucp_gbControl, etc. (grapheme break property) */
1798   uint8_t caseset;    /* offset to multichar other cases or zero */
1799   int32_t other_case; /* offset to other case, or zero if none */
1800   int16_t scriptx;    /* script extension value */
1801   int16_t dummy;      /* spare - to round to multiple of 4 bytes */
1802 } ucd_record;
1803 
1804 /* UCD access macros */
1805 
1806 #define UCD_BLOCK_SIZE 128
1807 #define REAL_GET_UCD(ch) (PRIV(ucd_records) + \
1808         PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
1809         UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
1810 
1811 #if PCRE2_CODE_UNIT_WIDTH == 32
1812 #define GET_UCD(ch) ((ch > MAX_UTF_CODE_POINT)? \
1813   PRIV(dummy_ucd_record) : REAL_GET_UCD(ch))
1814 #else
1815 #define GET_UCD(ch) REAL_GET_UCD(ch)
1816 #endif
1817 
1818 #define UCD_CHARTYPE(ch)    GET_UCD(ch)->chartype
1819 #define UCD_SCRIPT(ch)      GET_UCD(ch)->script
1820 #define UCD_CATEGORY(ch)    PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
1821 #define UCD_GRAPHBREAK(ch)  GET_UCD(ch)->gbprop
1822 #define UCD_CASESET(ch)     GET_UCD(ch)->caseset
1823 #define UCD_OTHERCASE(ch)   ((uint32_t)((int)ch + (int)(GET_UCD(ch)->other_case)))
1824 #define UCD_SCRIPTX(ch)     GET_UCD(ch)->scriptx
1825 
1826 /* Header for serialized pcre2 codes. */
1827 
1828 typedef struct pcre2_serialized_data {
1829   uint32_t magic;
1830   uint32_t version;
1831   uint32_t config;
1832   int32_t  number_of_codes;
1833 } pcre2_serialized_data;
1834 
1835 
1836 
1837 /* ----------------- Items that need PCRE2_CODE_UNIT_WIDTH ----------------- */
1838 
1839 /* When this file is included by pcre2test, PCRE2_CODE_UNIT_WIDTH is defined as
1840 0, so the following items are omitted. */
1841 
1842 #if defined PCRE2_CODE_UNIT_WIDTH && PCRE2_CODE_UNIT_WIDTH != 0
1843 
1844 /* EBCDIC is supported only for the 8-bit library. */
1845 
1846 #if defined EBCDIC && PCRE2_CODE_UNIT_WIDTH != 8
1847 #error EBCDIC is not supported for the 16-bit or 32-bit libraries
1848 #endif
1849 
1850 /* This is the largest non-UTF code point. */
1851 
1852 #define MAX_NON_UTF_CHAR (0xffffffffU >> (32 - PCRE2_CODE_UNIT_WIDTH))
1853 
1854 /* Internal shared data tables and variables. These are used by more than one
1855 of the exported public functions. They have to be "external" in the C sense,
1856 but are not part of the PCRE2 public API. Although the data for some of them is
1857 identical in all libraries, they must have different names so that multiple
1858 libraries can be simultaneously linked to a single application. However, UTF-8
1859 tables are needed only when compiling the 8-bit library. */
1860 
1861 #if PCRE2_CODE_UNIT_WIDTH == 8
1862 extern const int              PRIV(utf8_table1)[];
1863 extern const int              PRIV(utf8_table1_size);
1864 extern const int              PRIV(utf8_table2)[];
1865 extern const int              PRIV(utf8_table3)[];
1866 extern const uint8_t          PRIV(utf8_table4)[];
1867 #endif
1868 
1869 #define _pcre2_OP_lengths              PCRE2_SUFFIX(_pcre2_OP_lengths_)
1870 #define _pcre2_callout_end_delims      PCRE2_SUFFIX(_pcre2_callout_end_delims_)
1871 #define _pcre2_callout_start_delims    PCRE2_SUFFIX(_pcre2_callout_start_delims_)
1872 #define _pcre2_default_compile_context PCRE2_SUFFIX(_pcre2_default_compile_context_)
1873 #define _pcre2_default_convert_context PCRE2_SUFFIX(_pcre2_default_convert_context_)
1874 #define _pcre2_default_match_context   PCRE2_SUFFIX(_pcre2_default_match_context_)
1875 #define _pcre2_default_tables          PCRE2_SUFFIX(_pcre2_default_tables_)
1876 #if PCRE2_CODE_UNIT_WIDTH == 32
1877 #define _pcre2_dummy_ucd_record        PCRE2_SUFFIX(_pcre2_dummy_ucd_record_)
1878 #endif
1879 #define _pcre2_hspace_list             PCRE2_SUFFIX(_pcre2_hspace_list_)
1880 #define _pcre2_vspace_list             PCRE2_SUFFIX(_pcre2_vspace_list_)
1881 #define _pcre2_ucd_caseless_sets       PCRE2_SUFFIX(_pcre2_ucd_caseless_sets_)
1882 #define _pcre2_ucd_digit_sets          PCRE2_SUFFIX(_pcre2_ucd_digit_sets_)
1883 #define _pcre2_ucd_script_sets         PCRE2_SUFFIX(_pcre2_ucd_script_sets_)
1884 #define _pcre2_ucd_records             PCRE2_SUFFIX(_pcre2_ucd_records_)
1885 #define _pcre2_ucd_stage1              PCRE2_SUFFIX(_pcre2_ucd_stage1_)
1886 #define _pcre2_ucd_stage2              PCRE2_SUFFIX(_pcre2_ucd_stage2_)
1887 #define _pcre2_ucp_gbtable             PCRE2_SUFFIX(_pcre2_ucp_gbtable_)
1888 #define _pcre2_ucp_gentype             PCRE2_SUFFIX(_pcre2_ucp_gentype_)
1889 #define _pcre2_ucp_typerange           PCRE2_SUFFIX(_pcre2_ucp_typerange_)
1890 #define _pcre2_unicode_version         PCRE2_SUFFIX(_pcre2_unicode_version_)
1891 #define _pcre2_utt                     PCRE2_SUFFIX(_pcre2_utt_)
1892 #define _pcre2_utt_names               PCRE2_SUFFIX(_pcre2_utt_names_)
1893 #define _pcre2_utt_size                PCRE2_SUFFIX(_pcre2_utt_size_)
1894 
1895 extern const uint8_t                   PRIV(OP_lengths)[];
1896 extern const uint32_t                  PRIV(callout_end_delims)[];
1897 extern const uint32_t                  PRIV(callout_start_delims)[];
1898 extern const pcre2_compile_context     PRIV(default_compile_context);
1899 extern const pcre2_convert_context     PRIV(default_convert_context);
1900 extern const pcre2_match_context       PRIV(default_match_context);
1901 extern const uint8_t                   PRIV(default_tables)[];
1902 extern const uint32_t                  PRIV(hspace_list)[];
1903 extern const uint32_t                  PRIV(vspace_list)[];
1904 extern const uint32_t                  PRIV(ucd_caseless_sets)[];
1905 extern const uint32_t                  PRIV(ucd_digit_sets)[];
1906 extern const uint8_t                   PRIV(ucd_script_sets)[];
1907 extern const ucd_record                PRIV(ucd_records)[];
1908 #if PCRE2_CODE_UNIT_WIDTH == 32
1909 extern const ucd_record                PRIV(dummy_ucd_record)[];
1910 #endif
1911 extern const uint16_t                  PRIV(ucd_stage1)[];
1912 extern const uint16_t                  PRIV(ucd_stage2)[];
1913 extern const uint32_t                  PRIV(ucp_gbtable)[];
1914 extern const uint32_t                  PRIV(ucp_gentype)[];
1915 #ifdef SUPPORT_JIT
1916 extern const int                       PRIV(ucp_typerange)[];
1917 #endif
1918 extern const char                     *PRIV(unicode_version);
1919 extern const ucp_type_table            PRIV(utt)[];
1920 extern const char                      PRIV(utt_names)[];
1921 extern const size_t                    PRIV(utt_size);
1922 
1923 /* Mode-dependent macros and hidden and private structures are defined in a
1924 separate file so that pcre2test can include them at all supported widths. When
1925 compiling the library, PCRE2_CODE_UNIT_WIDTH will be defined, and we can
1926 include them at the appropriate width, after setting up suffix macros for the
1927 private structures. */
1928 
1929 #define branch_chain                 PCRE2_SUFFIX(branch_chain_)
1930 #define compile_block                PCRE2_SUFFIX(compile_block_)
1931 #define dfa_match_block              PCRE2_SUFFIX(dfa_match_block_)
1932 #define match_block                  PCRE2_SUFFIX(match_block_)
1933 #define named_group                  PCRE2_SUFFIX(named_group_)
1934 
1935 #include "pcre2_intmodedep.h"
1936 
1937 /* Private "external" functions. These are internal functions that are called
1938 from modules other than the one in which they are defined. They have to be
1939 "external" in the C sense, but are not part of the PCRE2 public API. They are
1940 not referenced from pcre2test, and must not be defined when no code unit width
1941 is available. */
1942 
1943 #define _pcre2_auto_possessify       PCRE2_SUFFIX(_pcre2_auto_possessify_)
1944 #define _pcre2_check_escape          PCRE2_SUFFIX(_pcre2_check_escape_)
1945 #define _pcre2_extuni                PCRE2_SUFFIX(_pcre2_extuni_)
1946 #define _pcre2_find_bracket          PCRE2_SUFFIX(_pcre2_find_bracket_)
1947 #define _pcre2_is_newline            PCRE2_SUFFIX(_pcre2_is_newline_)
1948 #define _pcre2_jit_free_rodata       PCRE2_SUFFIX(_pcre2_jit_free_rodata_)
1949 #define _pcre2_jit_free              PCRE2_SUFFIX(_pcre2_jit_free_)
1950 #define _pcre2_jit_get_size          PCRE2_SUFFIX(_pcre2_jit_get_size_)
1951 #define _pcre2_jit_get_target        PCRE2_SUFFIX(_pcre2_jit_get_target_)
1952 #define _pcre2_memctl_malloc         PCRE2_SUFFIX(_pcre2_memctl_malloc_)
1953 #define _pcre2_ord2utf               PCRE2_SUFFIX(_pcre2_ord2utf_)
1954 #define _pcre2_script_run            PCRE2_SUFFIX(_pcre2_script_run_)
1955 #define _pcre2_strcmp                PCRE2_SUFFIX(_pcre2_strcmp_)
1956 #define _pcre2_strcmp_c8             PCRE2_SUFFIX(_pcre2_strcmp_c8_)
1957 #define _pcre2_strcpy_c8             PCRE2_SUFFIX(_pcre2_strcpy_c8_)
1958 #define _pcre2_strlen                PCRE2_SUFFIX(_pcre2_strlen_)
1959 #define _pcre2_strncmp               PCRE2_SUFFIX(_pcre2_strncmp_)
1960 #define _pcre2_strncmp_c8            PCRE2_SUFFIX(_pcre2_strncmp_c8_)
1961 #define _pcre2_study                 PCRE2_SUFFIX(_pcre2_study_)
1962 #define _pcre2_valid_utf             PCRE2_SUFFIX(_pcre2_valid_utf_)
1963 #define _pcre2_was_newline           PCRE2_SUFFIX(_pcre2_was_newline_)
1964 #define _pcre2_xclass                PCRE2_SUFFIX(_pcre2_xclass_)
1965 
1966 extern int          _pcre2_auto_possessify(PCRE2_UCHAR *,
1967                       const compile_block *);
1968 extern int          _pcre2_check_escape(PCRE2_SPTR *, PCRE2_SPTR, uint32_t *,
1969                       int *, uint32_t, uint32_t, BOOL, compile_block *);
1970 extern PCRE2_SPTR   _pcre2_extuni(uint32_t, PCRE2_SPTR, PCRE2_SPTR, PCRE2_SPTR,
1971                       BOOL, int *);
1972 extern PCRE2_SPTR   _pcre2_find_bracket(PCRE2_SPTR, BOOL, int);
1973 extern BOOL         _pcre2_is_newline(PCRE2_SPTR, uint32_t, PCRE2_SPTR,
1974                       uint32_t *, BOOL);
1975 extern void         _pcre2_jit_free_rodata(void *, void *);
1976 extern void         _pcre2_jit_free(void *, pcre2_memctl *);
1977 extern size_t       _pcre2_jit_get_size(void *);
1978 const char *        _pcre2_jit_get_target(void);
1979 extern void *       _pcre2_memctl_malloc(size_t, pcre2_memctl *);
1980 extern unsigned int _pcre2_ord2utf(uint32_t, PCRE2_UCHAR *);
1981 extern BOOL         _pcre2_script_run(PCRE2_SPTR, PCRE2_SPTR, BOOL);
1982 extern int          _pcre2_strcmp(PCRE2_SPTR, PCRE2_SPTR);
1983 extern int          _pcre2_strcmp_c8(PCRE2_SPTR, const char *);
1984 extern PCRE2_SIZE   _pcre2_strcpy_c8(PCRE2_UCHAR *, const char *);
1985 extern PCRE2_SIZE   _pcre2_strlen(PCRE2_SPTR);
1986 extern int          _pcre2_strncmp(PCRE2_SPTR, PCRE2_SPTR, size_t);
1987 extern int          _pcre2_strncmp_c8(PCRE2_SPTR, const char *, size_t);
1988 extern int          _pcre2_study(pcre2_real_code *);
1989 extern int          _pcre2_valid_utf(PCRE2_SPTR, PCRE2_SIZE, PCRE2_SIZE *);
1990 extern BOOL         _pcre2_was_newline(PCRE2_SPTR, uint32_t, PCRE2_SPTR,
1991                       uint32_t *, BOOL);
1992 extern BOOL         _pcre2_xclass(uint32_t, PCRE2_SPTR, BOOL);
1993 
1994 /* This function is needed only when memmove() is not available. */
1995 
1996 #if !defined(VPCOMPAT) && !defined(HAVE_MEMMOVE)
1997 #define _pcre2_memmove               PCRE2_SUFFIX(_pcre2_memmove)
1998 extern void *       _pcre2_memmove(void *, const void *, size_t);
1999 #endif
2000 
2001 #endif  /* PCRE2_CODE_UNIT_WIDTH */
2002 #endif  /* PCRE2_INTERNAL_H_IDEMPOTENT_GUARD */
2003 
2004 /* End of pcre2_internal.h */
2005