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Revision 1425 - (show annotations)
Tue Dec 31 17:44:40 2013 UTC (5 years, 9 months ago) by ph10
File MIME type: text/plain
File size: 112448 byte(s)
Get rid of confusing RAWUCHAR set of macros.
1 /*************************************************
2 * Perl-Compatible Regular Expressions *
3 *************************************************/
4
5
6 /* PCRE is a library of functions to support regular expressions whose syntax
7 and semantics are as close as possible to those of the Perl 5 language.
8
9 Written by Philip Hazel
10 Copyright (c) 1997-2013 University of Cambridge
11
12 -----------------------------------------------------------------------------
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions are met:
15
16 * Redistributions of source code must retain the above copyright notice,
17 this list of conditions and the following disclaimer.
18
19 * Redistributions in binary form must reproduce the above copyright
20 notice, this list of conditions and the following disclaimer in the
21 documentation and/or other materials provided with the distribution.
22
23 * Neither the name of the University of Cambridge nor the names of its
24 contributors may be used to endorse or promote products derived from
25 this software without specific prior written permission.
26
27 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
28 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 POSSIBILITY OF SUCH DAMAGE.
38 -----------------------------------------------------------------------------
39 */
40
41 /* This header contains definitions that are shared between the different
42 modules, but which are not relevant to the exported API. This includes some
43 functions whose names all begin with "_pcre_", "_pcre16_" or "_pcre32_"
44 depending on the PRIV macro. */
45
46 #ifndef PCRE_INTERNAL_H
47 #define PCRE_INTERNAL_H
48
49 /* Define PCRE_DEBUG to get debugging output on stdout. */
50
51 #if 0
52 #define PCRE_DEBUG
53 #endif
54
55 /* PCRE is compiled as an 8 bit library if it is not requested otherwise. */
56
57 #if !defined COMPILE_PCRE16 && !defined COMPILE_PCRE32
58 #define COMPILE_PCRE8
59 #endif
60
61 /* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
62 "configure" script ensures this, but not everybody uses "configure". */
63
64 #if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
65 #define SUPPORT_UTF 1
66 #endif
67
68 /* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
69 reasons with existing code. */
70
71 #if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
72 #define SUPPORT_UTF 1
73 #endif
74
75 /* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
76 Until then we define it if SUPPORT_UTF is defined. */
77
78 #if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
79 #define SUPPORT_UTF8 1
80 #endif
81
82 /* We do not support both EBCDIC and UTF-8/16/32 at the same time. The "configure"
83 script prevents both being selected, but not everybody uses "configure". */
84
85 #if defined EBCDIC && defined SUPPORT_UTF
86 #error The use of both EBCDIC and SUPPORT_UTF is not supported.
87 #endif
88
89 /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
90 inline, and there are *still* stupid compilers about that don't like indented
91 pre-processor statements, or at least there were when I first wrote this. After
92 all, it had only been about 10 years then...
93
94 It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
95 be absolutely sure we get our version. */
96
97 #undef DPRINTF
98 #ifdef PCRE_DEBUG
99 #define DPRINTF(p) printf p
100 #else
101 #define DPRINTF(p) /* Nothing */
102 #endif
103
104
105 /* Standard C headers plus the external interface definition. The only time
106 setjmp and stdarg are used is when NO_RECURSE is set. */
107
108 #include <ctype.h>
109 #include <limits.h>
110 #include <stddef.h>
111 #include <stdio.h>
112 #include <stdlib.h>
113 #include <string.h>
114
115 /* Valgrind (memcheck) support */
116
117 #ifdef SUPPORT_VALGRIND
118 #include <valgrind/memcheck.h>
119 #endif
120
121 /* When compiling a DLL for Windows, the exported symbols have to be declared
122 using some MS magic. I found some useful information on this web page:
123 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
124 information there, using __declspec(dllexport) without "extern" we have a
125 definition; with "extern" we have a declaration. The settings here override the
126 setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
127 which is all that is needed for applications (they just import the symbols). We
128 use:
129
130 PCRE_EXP_DECL for declarations
131 PCRE_EXP_DEFN for definitions of exported functions
132 PCRE_EXP_DATA_DEFN for definitions of exported variables
133
134 The reason for the two DEFN macros is that in non-Windows environments, one
135 does not want to have "extern" before variable definitions because it leads to
136 compiler warnings. So we distinguish between functions and variables. In
137 Windows, the two should always be the same.
138
139 The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
140 which is an application, but needs to import this file in order to "peek" at
141 internals, can #include pcre.h first to get an application's-eye view.
142
143 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
144 special-purpose environments) might want to stick other stuff in front of
145 exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
146 PCRE_EXP_DATA_DEFN only if they are not already set. */
147
148 #ifndef PCRE_EXP_DECL
149 # ifdef _WIN32
150 # ifndef PCRE_STATIC
151 # define PCRE_EXP_DECL extern __declspec(dllexport)
152 # define PCRE_EXP_DEFN __declspec(dllexport)
153 # define PCRE_EXP_DATA_DEFN __declspec(dllexport)
154 # else
155 # define PCRE_EXP_DECL extern
156 # define PCRE_EXP_DEFN
157 # define PCRE_EXP_DATA_DEFN
158 # endif
159 # else
160 # ifdef __cplusplus
161 # define PCRE_EXP_DECL extern "C"
162 # else
163 # define PCRE_EXP_DECL extern
164 # endif
165 # ifndef PCRE_EXP_DEFN
166 # define PCRE_EXP_DEFN PCRE_EXP_DECL
167 # endif
168 # ifndef PCRE_EXP_DATA_DEFN
169 # define PCRE_EXP_DATA_DEFN
170 # endif
171 # endif
172 #endif
173
174 /* When compiling with the MSVC compiler, it is sometimes necessary to include
175 a "calling convention" before exported function names. (This is secondhand
176 information; I know nothing about MSVC myself). For example, something like
177
178 void __cdecl function(....)
179
180 might be needed. In order so make this easy, all the exported functions have
181 PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
182 set, we ensure here that it has no effect. */
183
184 #ifndef PCRE_CALL_CONVENTION
185 #define PCRE_CALL_CONVENTION
186 #endif
187
188 /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
189 cannot determine these outside the compilation (e.g. by running a program as
190 part of "configure") because PCRE is often cross-compiled for use on other
191 systems. Instead we make use of the maximum sizes that are available at
192 preprocessor time in standard C environments. */
193
194 typedef unsigned char pcre_uint8;
195
196 #if USHRT_MAX == 65535
197 typedef unsigned short pcre_uint16;
198 typedef short pcre_int16;
199 #define PCRE_UINT16_MAX USHRT_MAX
200 #define PCRE_INT16_MAX SHRT_MAX
201 #elif UINT_MAX == 65535
202 typedef unsigned int pcre_uint16;
203 typedef int pcre_int16;
204 #define PCRE_UINT16_MAX UINT_MAX
205 #define PCRE_INT16_MAX INT_MAX
206 #else
207 #error Cannot determine a type for 16-bit integers
208 #endif
209
210 #if UINT_MAX == 4294967295U
211 typedef unsigned int pcre_uint32;
212 typedef int pcre_int32;
213 #define PCRE_UINT32_MAX UINT_MAX
214 #define PCRE_INT32_MAX INT_MAX
215 #elif ULONG_MAX == 4294967295UL
216 typedef unsigned long int pcre_uint32;
217 typedef long int pcre_int32;
218 #define PCRE_UINT32_MAX ULONG_MAX
219 #define PCRE_INT32_MAX LONG_MAX
220 #else
221 #error Cannot determine a type for 32-bit integers
222 #endif
223
224 /* When checking for integer overflow in pcre_compile(), we need to handle
225 large integers. If a 64-bit integer type is available, we can use that.
226 Otherwise we have to cast to double, which of course requires floating point
227 arithmetic. Handle this by defining a macro for the appropriate type. If
228 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
229 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
230 by "configure". */
231
232 #if defined HAVE_STDINT_H
233 #include <stdint.h>
234 #elif defined HAVE_INTTYPES_H
235 #include <inttypes.h>
236 #endif
237
238 #if defined INT64_MAX || defined int64_t
239 #define INT64_OR_DOUBLE int64_t
240 #else
241 #define INT64_OR_DOUBLE double
242 #endif
243
244 /* All character handling must be done as unsigned characters. Otherwise there
245 are problems with top-bit-set characters and functions such as isspace().
246 However, we leave the interface to the outside world as char * or short *,
247 because that should make things easier for callers. This character type is
248 called pcre_uchar.
249
250 The IN_UCHARS macro multiply its argument with the byte size of the current
251 pcre_uchar type. Useful for memcpy and such operations, whose require the
252 byte size of their input/output buffers.
253
254 The MAX_255 macro checks whether its pcre_uchar input is less than 256.
255
256 The TABLE_GET macro is designed for accessing elements of tables whose contain
257 exactly 256 items. When the character is able to contain more than 256
258 items, some check is needed before accessing these tables.
259 */
260
261 #if defined COMPILE_PCRE8
262
263 typedef unsigned char pcre_uchar;
264 #define IN_UCHARS(x) (x)
265 #define MAX_255(c) 1
266 #define TABLE_GET(c, table, default) ((table)[c])
267
268 #elif defined COMPILE_PCRE16
269
270 #if USHRT_MAX != 65535
271 /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
272 pcre.h(.in) and disable (comment out) this message. */
273 #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
274 #endif
275
276 typedef pcre_uint16 pcre_uchar;
277 #define UCHAR_SHIFT (1)
278 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
279 #define MAX_255(c) ((c) <= 255u)
280 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
281
282 #elif defined COMPILE_PCRE32
283
284 typedef pcre_uint32 pcre_uchar;
285 #define UCHAR_SHIFT (2)
286 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
287 #define MAX_255(c) ((c) <= 255u)
288 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
289
290 #else
291 #error Unsupported compiling mode
292 #endif /* COMPILE_PCRE[8|16|32] */
293
294 /* This is an unsigned int value that no character can ever have. UTF-8
295 characters only go up to 0x7fffffff (though Unicode doesn't go beyond
296 0x0010ffff). */
297
298 #define NOTACHAR 0xffffffff
299
300 /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
301 "any" and "anycrlf" at present). The following macros are used to package up
302 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
303 modules to indicate in which datablock the parameters exist, and what the
304 start/end of string field names are. */
305
306 #define NLTYPE_FIXED 0 /* Newline is a fixed length string */
307 #define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
308 #define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
309
310 /* This macro checks for a newline at the given position */
311
312 #define IS_NEWLINE(p) \
313 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
314 ((p) < NLBLOCK->PSEND && \
315 PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
316 &(NLBLOCK->nllen), utf)) \
317 : \
318 ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
319 *p == NLBLOCK->nl[0] && (NLBLOCK->nllen == 1 || p[1] == NLBLOCK->nl[1]) \
320 ) \
321 )
322
323 /* This macro checks for a newline immediately preceding the given position */
324
325 #define WAS_NEWLINE(p) \
326 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
327 ((p) > NLBLOCK->PSSTART && \
328 PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
329 &(NLBLOCK->nllen), utf)) \
330 : \
331 ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
332 *(p - NLBLOCK->nllen) == NLBLOCK->nl[0] && \
333 (NLBLOCK->nllen == 1 || *(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
334 ) \
335 )
336
337 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
338 with a custom type. This makes it possible, for example, to allow pcre_exec()
339 to process subject strings that are discontinuous by using a smart pointer
340 class. It must always be possible to inspect all of the subject string in
341 pcre_exec() because of the way it backtracks. Two macros are required in the
342 normal case, for sign-unspecified and unsigned char pointers. The former is
343 used for the external interface and appears in pcre.h, which is why its name
344 must begin with PCRE_. */
345
346 #ifdef CUSTOM_SUBJECT_PTR
347 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
348 #else
349 #define PCRE_PUCHAR const pcre_uchar *
350 #endif
351
352 /* Include the public PCRE header and the definitions of UCP character property
353 values. */
354
355 #include "pcre.h"
356 #include "ucp.h"
357
358 #ifdef COMPILE_PCRE32
359 /* Assert that the public PCRE_UCHAR32 is a 32-bit type */
360 typedef int __assert_pcre_uchar32_size[sizeof(PCRE_UCHAR32) == 4 ? 1 : -1];
361 #endif
362
363 /* When compiling for use with the Virtual Pascal compiler, these functions
364 need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
365 option on the command line. */
366
367 #ifdef VPCOMPAT
368 #define strlen(s) _strlen(s)
369 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
370 #define memcmp(s,c,n) _memcmp(s,c,n)
371 #define memcpy(d,s,n) _memcpy(d,s,n)
372 #define memmove(d,s,n) _memmove(d,s,n)
373 #define memset(s,c,n) _memset(s,c,n)
374 #else /* VPCOMPAT */
375
376 /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
377 define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
378 is set. Otherwise, include an emulating function for those systems that have
379 neither (there some non-Unix environments where this is the case). */
380
381 #ifndef HAVE_MEMMOVE
382 #undef memmove /* some systems may have a macro */
383 #ifdef HAVE_BCOPY
384 #define memmove(a, b, c) bcopy(b, a, c)
385 #else /* HAVE_BCOPY */
386 static void *
387 pcre_memmove(void *d, const void *s, size_t n)
388 {
389 size_t i;
390 unsigned char *dest = (unsigned char *)d;
391 const unsigned char *src = (const unsigned char *)s;
392 if (dest > src)
393 {
394 dest += n;
395 src += n;
396 for (i = 0; i < n; ++i) *(--dest) = *(--src);
397 return (void *)dest;
398 }
399 else
400 {
401 for (i = 0; i < n; ++i) *dest++ = *src++;
402 return (void *)(dest - n);
403 }
404 }
405 #define memmove(a, b, c) pcre_memmove(a, b, c)
406 #endif /* not HAVE_BCOPY */
407 #endif /* not HAVE_MEMMOVE */
408 #endif /* not VPCOMPAT */
409
410
411 /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
412 in big-endian order) by default. These are used, for example, to link from the
413 start of a subpattern to its alternatives and its end. The use of 2 bytes per
414 offset limits the size of the compiled regex to around 64K, which is big enough
415 for almost everybody. However, I received a request for an even bigger limit.
416 For this reason, and also to make the code easier to maintain, the storing and
417 loading of offsets from the byte string is now handled by the macros that are
418 defined here.
419
420 The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
421 the config.h file, but can be overridden by using -D on the command line. This
422 is automated on Unix systems via the "configure" command. */
423
424 #if defined COMPILE_PCRE8
425
426 #if LINK_SIZE == 2
427
428 #define PUT(a,n,d) \
429 (a[n] = (d) >> 8), \
430 (a[(n)+1] = (d) & 255)
431
432 #define GET(a,n) \
433 (((a)[n] << 8) | (a)[(n)+1])
434
435 #define MAX_PATTERN_SIZE (1 << 16)
436
437
438 #elif LINK_SIZE == 3
439
440 #define PUT(a,n,d) \
441 (a[n] = (d) >> 16), \
442 (a[(n)+1] = (d) >> 8), \
443 (a[(n)+2] = (d) & 255)
444
445 #define GET(a,n) \
446 (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
447
448 #define MAX_PATTERN_SIZE (1 << 24)
449
450
451 #elif LINK_SIZE == 4
452
453 #define PUT(a,n,d) \
454 (a[n] = (d) >> 24), \
455 (a[(n)+1] = (d) >> 16), \
456 (a[(n)+2] = (d) >> 8), \
457 (a[(n)+3] = (d) & 255)
458
459 #define GET(a,n) \
460 (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
461
462 /* Keep it positive */
463 #define MAX_PATTERN_SIZE (1 << 30)
464
465 #else
466 #error LINK_SIZE must be either 2, 3, or 4
467 #endif
468
469 #elif defined COMPILE_PCRE16
470
471 #if LINK_SIZE == 2
472
473 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
474 #undef LINK_SIZE
475 #define LINK_SIZE 1
476
477 #define PUT(a,n,d) \
478 (a[n] = (d))
479
480 #define GET(a,n) \
481 (a[n])
482
483 #define MAX_PATTERN_SIZE (1 << 16)
484
485 #elif LINK_SIZE == 3 || LINK_SIZE == 4
486
487 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
488 #undef LINK_SIZE
489 #define LINK_SIZE 2
490
491 #define PUT(a,n,d) \
492 (a[n] = (d) >> 16), \
493 (a[(n)+1] = (d) & 65535)
494
495 #define GET(a,n) \
496 (((a)[n] << 16) | (a)[(n)+1])
497
498 /* Keep it positive */
499 #define MAX_PATTERN_SIZE (1 << 30)
500
501 #else
502 #error LINK_SIZE must be either 2, 3, or 4
503 #endif
504
505 #elif defined COMPILE_PCRE32
506
507 /* Only supported LINK_SIZE is 4 */
508 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
509 #undef LINK_SIZE
510 #define LINK_SIZE 1
511
512 #define PUT(a,n,d) \
513 (a[n] = (d))
514
515 #define GET(a,n) \
516 (a[n])
517
518 /* Keep it positive */
519 #define MAX_PATTERN_SIZE (1 << 30)
520
521 #else
522 #error Unsupported compiling mode
523 #endif /* COMPILE_PCRE[8|16|32] */
524
525 /* Convenience macro defined in terms of the others */
526
527 #define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
528
529
530 /* PCRE uses some other 2-byte quantities that do not change when the size of
531 offsets changes. There are used for repeat counts and for other things such as
532 capturing parenthesis numbers in back references. */
533
534 #if defined COMPILE_PCRE8
535
536 #define IMM2_SIZE 2
537
538 #define PUT2(a,n,d) \
539 a[n] = (d) >> 8; \
540 a[(n)+1] = (d) & 255
541
542 /* For reasons that I do not understand, the expression in this GET2 macro is
543 treated by gcc as a signed expression, even when a is declared as unsigned. It
544 seems that any kind of arithmetic results in a signed value. */
545
546 #define GET2(a,n) \
547 (unsigned int)(((a)[n] << 8) | (a)[(n)+1])
548
549 #elif defined COMPILE_PCRE16
550
551 #define IMM2_SIZE 1
552
553 #define PUT2(a,n,d) \
554 a[n] = d
555
556 #define GET2(a,n) \
557 a[n]
558
559 #elif defined COMPILE_PCRE32
560
561 #define IMM2_SIZE 1
562
563 #define PUT2(a,n,d) \
564 a[n] = d
565
566 #define GET2(a,n) \
567 a[n]
568
569 #else
570 #error Unsupported compiling mode
571 #endif /* COMPILE_PCRE[8|16|32] */
572
573 #define PUT2INC(a,n,d) PUT2(a,n,d), a += IMM2_SIZE
574
575 /* The maximum length of a MARK name is currently one data unit; it may be
576 changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
577
578 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
579 #define MAX_MARK ((1u << 16) - 1)
580 #else
581 #define MAX_MARK ((1u << 8) - 1)
582 #endif
583
584 /* When UTF encoding is being used, a character is no longer just a single
585 byte. The macros for character handling generate simple sequences when used in
586 character-mode, and more complicated ones for UTF characters. GETCHARLENTEST
587 and other macros are not used when UTF is not supported, so they are not
588 defined. To make sure they can never even appear when UTF support is omitted,
589 we don't even define them. */
590
591 #ifndef SUPPORT_UTF
592
593 /* #define MAX_VALUE_FOR_SINGLE_CHAR */
594 /* #define HAS_EXTRALEN(c) */
595 /* #define GET_EXTRALEN(c) */
596 /* #define NOT_FIRSTCHAR(c) */
597 #define GETCHAR(c, eptr) c = *eptr;
598 #define GETCHARTEST(c, eptr) c = *eptr;
599 #define GETCHARINC(c, eptr) c = *eptr++;
600 #define GETCHARINCTEST(c, eptr) c = *eptr++;
601 #define GETCHARLEN(c, eptr, len) c = *eptr;
602 /* #define GETCHARLENTEST(c, eptr, len) */
603 /* #define BACKCHAR(eptr) */
604 /* #define FORWARDCHAR(eptr) */
605 /* #define ACROSSCHAR(condition, eptr, action) */
606
607 #else /* SUPPORT_UTF */
608
609 /* Tests whether the code point needs extra characters to decode. */
610
611 #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
612
613 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
614 advancing the pointer. */
615
616 #define GETUTF8(c, eptr) \
617 { \
618 if ((c & 0x20) == 0) \
619 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
620 else if ((c & 0x10) == 0) \
621 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
622 else if ((c & 0x08) == 0) \
623 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
624 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
625 else if ((c & 0x04) == 0) \
626 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
627 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
628 (eptr[4] & 0x3f); \
629 else \
630 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
631 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
632 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
633 }
634
635 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
636 the pointer. */
637
638 #define GETUTF8INC(c, eptr) \
639 { \
640 if ((c & 0x20) == 0) \
641 c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
642 else if ((c & 0x10) == 0) \
643 { \
644 c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
645 eptr += 2; \
646 } \
647 else if ((c & 0x08) == 0) \
648 { \
649 c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
650 ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
651 eptr += 3; \
652 } \
653 else if ((c & 0x04) == 0) \
654 { \
655 c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
656 ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
657 (eptr[3] & 0x3f); \
658 eptr += 4; \
659 } \
660 else \
661 { \
662 c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
663 ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
664 ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
665 eptr += 5; \
666 } \
667 }
668
669 #if defined COMPILE_PCRE8
670
671 /* These macros were originally written in the form of loops that used data
672 from the tables whose names start with PRIV(utf8_table). They were rewritten by
673 a user so as not to use loops, because in some environments this gives a
674 significant performance advantage, and it seems never to do any harm. */
675
676 /* Tells the biggest code point which can be encoded as a single character. */
677
678 #define MAX_VALUE_FOR_SINGLE_CHAR 127
679
680 /* Tests whether the code point needs extra characters to decode. */
681
682 #define HAS_EXTRALEN(c) ((c) >= 0xc0)
683
684 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
685 Otherwise it has an undefined behaviour. */
686
687 #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
688
689 /* Returns TRUE, if the given character is not the first character
690 of a UTF sequence. */
691
692 #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
693
694 /* Get the next UTF-8 character, not advancing the pointer. This is called when
695 we know we are in UTF-8 mode. */
696
697 #define GETCHAR(c, eptr) \
698 c = *eptr; \
699 if (c >= 0xc0) GETUTF8(c, eptr);
700
701 /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
702 pointer. */
703
704 #define GETCHARTEST(c, eptr) \
705 c = *eptr; \
706 if (utf && c >= 0xc0) GETUTF8(c, eptr);
707
708 /* Get the next UTF-8 character, advancing the pointer. This is called when we
709 know we are in UTF-8 mode. */
710
711 #define GETCHARINC(c, eptr) \
712 c = *eptr++; \
713 if (c >= 0xc0) GETUTF8INC(c, eptr);
714
715 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
716 This is called when we don't know if we are in UTF-8 mode. */
717
718 #define GETCHARINCTEST(c, eptr) \
719 c = *eptr++; \
720 if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
721
722 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
723 advancing the pointer, incrementing the length. */
724
725 #define GETUTF8LEN(c, eptr, len) \
726 { \
727 if ((c & 0x20) == 0) \
728 { \
729 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
730 len++; \
731 } \
732 else if ((c & 0x10) == 0) \
733 { \
734 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
735 len += 2; \
736 } \
737 else if ((c & 0x08) == 0) \
738 {\
739 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
740 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
741 len += 3; \
742 } \
743 else if ((c & 0x04) == 0) \
744 { \
745 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
746 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
747 (eptr[4] & 0x3f); \
748 len += 4; \
749 } \
750 else \
751 {\
752 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
753 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
754 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
755 len += 5; \
756 } \
757 }
758
759 /* Get the next UTF-8 character, not advancing the pointer, incrementing length
760 if there are extra bytes. This is called when we know we are in UTF-8 mode. */
761
762 #define GETCHARLEN(c, eptr, len) \
763 c = *eptr; \
764 if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
765
766 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
767 pointer, incrementing length if there are extra bytes. This is called when we
768 do not know if we are in UTF-8 mode. */
769
770 #define GETCHARLENTEST(c, eptr, len) \
771 c = *eptr; \
772 if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
773
774 /* If the pointer is not at the start of a character, move it back until
775 it is. This is called only in UTF-8 mode - we don't put a test within the macro
776 because almost all calls are already within a block of UTF-8 only code. */
777
778 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
779
780 /* Same as above, just in the other direction. */
781 #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
782
783 /* Same as above, but it allows a fully customizable form. */
784 #define ACROSSCHAR(condition, eptr, action) \
785 while((condition) && ((eptr) & 0xc0) == 0x80) action
786
787 #elif defined COMPILE_PCRE16
788
789 /* Tells the biggest code point which can be encoded as a single character. */
790
791 #define MAX_VALUE_FOR_SINGLE_CHAR 65535
792
793 /* Tests whether the code point needs extra characters to decode. */
794
795 #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
796
797 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
798 Otherwise it has an undefined behaviour. */
799
800 #define GET_EXTRALEN(c) 1
801
802 /* Returns TRUE, if the given character is not the first character
803 of a UTF sequence. */
804
805 #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
806
807 /* Base macro to pick up the low surrogate of a UTF-16 character, not
808 advancing the pointer. */
809
810 #define GETUTF16(c, eptr) \
811 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
812
813 /* Get the next UTF-16 character, not advancing the pointer. This is called when
814 we know we are in UTF-16 mode. */
815
816 #define GETCHAR(c, eptr) \
817 c = *eptr; \
818 if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
819
820 /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
821 pointer. */
822
823 #define GETCHARTEST(c, eptr) \
824 c = *eptr; \
825 if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
826
827 /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
828 the pointer. */
829
830 #define GETUTF16INC(c, eptr) \
831 { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
832
833 /* Get the next UTF-16 character, advancing the pointer. This is called when we
834 know we are in UTF-16 mode. */
835
836 #define GETCHARINC(c, eptr) \
837 c = *eptr++; \
838 if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
839
840 /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
841 This is called when we don't know if we are in UTF-16 mode. */
842
843 #define GETCHARINCTEST(c, eptr) \
844 c = *eptr++; \
845 if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
846
847 /* Base macro to pick up the low surrogate of a UTF-16 character, not
848 advancing the pointer, incrementing the length. */
849
850 #define GETUTF16LEN(c, eptr, len) \
851 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
852
853 /* Get the next UTF-16 character, not advancing the pointer, incrementing
854 length if there is a low surrogate. This is called when we know we are in
855 UTF-16 mode. */
856
857 #define GETCHARLEN(c, eptr, len) \
858 c = *eptr; \
859 if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
860
861 /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
862 pointer, incrementing length if there is a low surrogate. This is called when
863 we do not know if we are in UTF-16 mode. */
864
865 #define GETCHARLENTEST(c, eptr, len) \
866 c = *eptr; \
867 if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
868
869 /* If the pointer is not at the start of a character, move it back until
870 it is. This is called only in UTF-16 mode - we don't put a test within the
871 macro because almost all calls are already within a block of UTF-16 only
872 code. */
873
874 #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
875
876 /* Same as above, just in the other direction. */
877 #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
878
879 /* Same as above, but it allows a fully customizable form. */
880 #define ACROSSCHAR(condition, eptr, action) \
881 if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
882
883 #elif defined COMPILE_PCRE32
884
885 /* These are trivial for the 32-bit library, since all UTF-32 characters fit
886 into one pcre_uchar unit. */
887 #define MAX_VALUE_FOR_SINGLE_CHAR (0x10ffffu)
888 #define HAS_EXTRALEN(c) (0)
889 #define GET_EXTRALEN(c) (0)
890 #define NOT_FIRSTCHAR(c) (0)
891
892 /* Get the next UTF-32 character, not advancing the pointer. This is called when
893 we know we are in UTF-32 mode. */
894
895 #define GETCHAR(c, eptr) \
896 c = *(eptr);
897
898 /* Get the next UTF-32 character, testing for UTF-32 mode, and not advancing the
899 pointer. */
900
901 #define GETCHARTEST(c, eptr) \
902 c = *(eptr);
903
904 /* Get the next UTF-32 character, advancing the pointer. This is called when we
905 know we are in UTF-32 mode. */
906
907 #define GETCHARINC(c, eptr) \
908 c = *((eptr)++);
909
910 /* Get the next character, testing for UTF-32 mode, and advancing the pointer.
911 This is called when we don't know if we are in UTF-32 mode. */
912
913 #define GETCHARINCTEST(c, eptr) \
914 c = *((eptr)++);
915
916 /* Get the next UTF-32 character, not advancing the pointer, not incrementing
917 length (since all UTF-32 is of length 1). This is called when we know we are in
918 UTF-32 mode. */
919
920 #define GETCHARLEN(c, eptr, len) \
921 GETCHAR(c, eptr)
922
923 /* Get the next UTF-32character, testing for UTF-32 mode, not advancing the
924 pointer, not incrementing the length (since all UTF-32 is of length 1).
925 This is called when we do not know if we are in UTF-32 mode. */
926
927 #define GETCHARLENTEST(c, eptr, len) \
928 GETCHARTEST(c, eptr)
929
930 /* If the pointer is not at the start of a character, move it back until
931 it is. This is called only in UTF-32 mode - we don't put a test within the
932 macro because almost all calls are already within a block of UTF-32 only
933 code.
934 These are all no-ops since all UTF-32 characters fit into one pcre_uchar. */
935
936 #define BACKCHAR(eptr) do { } while (0)
937
938 /* Same as above, just in the other direction. */
939 #define FORWARDCHAR(eptr) do { } while (0)
940
941 /* Same as above, but it allows a fully customizable form. */
942 #define ACROSSCHAR(condition, eptr, action) do { } while (0)
943
944 #else
945 #error Unsupported compiling mode
946 #endif /* COMPILE_PCRE[8|16|32] */
947
948 #endif /* SUPPORT_UTF */
949
950 /* Tests for Unicode horizontal and vertical whitespace characters must check a
951 number of different values. Using a switch statement for this generates the
952 fastest code (no loop, no memory access), and there are several places in the
953 interpreter code where this happens. In order to ensure that all the case lists
954 remain in step, we use macros so that there is only one place where the lists
955 are defined.
956
957 These values are also required as lists in pcre_compile.c when processing \h,
958 \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
959 macros that define the values are here so that all the definitions are
960 together. The lists must be in ascending character order, terminated by
961 NOTACHAR (which is 0xffffffff).
962
963 Any changes should ensure that the various macros are kept in step with each
964 other. NOTE: The values also appear in pcre_jit_compile.c. */
965
966 /* ------ ASCII/Unicode environments ------ */
967
968 #ifndef EBCDIC
969
970 #define HSPACE_LIST \
971 CHAR_HT, CHAR_SPACE, 0xa0, \
972 0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
973 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
974 NOTACHAR
975
976 #define HSPACE_MULTIBYTE_CASES \
977 case 0x1680: /* OGHAM SPACE MARK */ \
978 case 0x180e: /* MONGOLIAN VOWEL SEPARATOR */ \
979 case 0x2000: /* EN QUAD */ \
980 case 0x2001: /* EM QUAD */ \
981 case 0x2002: /* EN SPACE */ \
982 case 0x2003: /* EM SPACE */ \
983 case 0x2004: /* THREE-PER-EM SPACE */ \
984 case 0x2005: /* FOUR-PER-EM SPACE */ \
985 case 0x2006: /* SIX-PER-EM SPACE */ \
986 case 0x2007: /* FIGURE SPACE */ \
987 case 0x2008: /* PUNCTUATION SPACE */ \
988 case 0x2009: /* THIN SPACE */ \
989 case 0x200A: /* HAIR SPACE */ \
990 case 0x202f: /* NARROW NO-BREAK SPACE */ \
991 case 0x205f: /* MEDIUM MATHEMATICAL SPACE */ \
992 case 0x3000 /* IDEOGRAPHIC SPACE */
993
994 #define HSPACE_BYTE_CASES \
995 case CHAR_HT: \
996 case CHAR_SPACE: \
997 case 0xa0 /* NBSP */
998
999 #define HSPACE_CASES \
1000 HSPACE_BYTE_CASES: \
1001 HSPACE_MULTIBYTE_CASES
1002
1003 #define VSPACE_LIST \
1004 CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
1005
1006 #define VSPACE_MULTIBYTE_CASES \
1007 case 0x2028: /* LINE SEPARATOR */ \
1008 case 0x2029 /* PARAGRAPH SEPARATOR */
1009
1010 #define VSPACE_BYTE_CASES \
1011 case CHAR_LF: \
1012 case CHAR_VT: \
1013 case CHAR_FF: \
1014 case CHAR_CR: \
1015 case CHAR_NEL
1016
1017 #define VSPACE_CASES \
1018 VSPACE_BYTE_CASES: \
1019 VSPACE_MULTIBYTE_CASES
1020
1021 /* ------ EBCDIC environments ------ */
1022
1023 #else
1024 #define HSPACE_LIST CHAR_HT, CHAR_SPACE
1025
1026 #define HSPACE_BYTE_CASES \
1027 case CHAR_HT: \
1028 case CHAR_SPACE
1029
1030 #define HSPACE_CASES HSPACE_BYTE_CASES
1031
1032 #ifdef EBCDIC_NL25
1033 #define VSPACE_LIST \
1034 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
1035 #else
1036 #define VSPACE_LIST \
1037 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
1038 #endif
1039
1040 #define VSPACE_BYTE_CASES \
1041 case CHAR_LF: \
1042 case CHAR_VT: \
1043 case CHAR_FF: \
1044 case CHAR_CR: \
1045 case CHAR_NEL
1046
1047 #define VSPACE_CASES VSPACE_BYTE_CASES
1048 #endif /* EBCDIC */
1049
1050 /* ------ End of whitespace macros ------ */
1051
1052
1053
1054 /* Private flags containing information about the compiled regex. They used to
1055 live at the top end of the options word, but that got almost full, so they were
1056 moved to a 16-bit flags word - which got almost full, so now they are in a
1057 32-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as the
1058 restrictions on partial matching have been lifted. It remains for backwards
1059 compatibility. */
1060
1061 #define PCRE_MODE8 0x00000001 /* compiled in 8 bit mode */
1062 #define PCRE_MODE16 0x00000002 /* compiled in 16 bit mode */
1063 #define PCRE_MODE32 0x00000004 /* compiled in 32 bit mode */
1064 #define PCRE_FIRSTSET 0x00000010 /* first_char is set */
1065 #define PCRE_FCH_CASELESS 0x00000020 /* caseless first char */
1066 #define PCRE_REQCHSET 0x00000040 /* req_byte is set */
1067 #define PCRE_RCH_CASELESS 0x00000080 /* caseless requested char */
1068 #define PCRE_STARTLINE 0x00000100 /* start after \n for multiline */
1069 #define PCRE_NOPARTIAL 0x00000200 /* can't use partial with this regex */
1070 #define PCRE_JCHANGED 0x00000400 /* j option used in regex */
1071 #define PCRE_HASCRORLF 0x00000800 /* explicit \r or \n in pattern */
1072 #define PCRE_HASTHEN 0x00001000 /* pattern contains (*THEN) */
1073 #define PCRE_MLSET 0x00002000 /* match limit set by regex */
1074 #define PCRE_RLSET 0x00004000 /* recursion limit set by regex */
1075 #define PCRE_MATCH_EMPTY 0x00008000 /* pattern can match empty string */
1076
1077 #if defined COMPILE_PCRE8
1078 #define PCRE_MODE PCRE_MODE8
1079 #elif defined COMPILE_PCRE16
1080 #define PCRE_MODE PCRE_MODE16
1081 #elif defined COMPILE_PCRE32
1082 #define PCRE_MODE PCRE_MODE32
1083 #endif
1084 #define PCRE_MODE_MASK (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
1085
1086 /* Flags for the "extra" block produced by pcre_study(). */
1087
1088 #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
1089 #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
1090
1091 /* Masks for identifying the public options that are permitted at compile
1092 time, run time, or study time, respectively. */
1093
1094 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
1095 PCRE_NEWLINE_ANYCRLF)
1096
1097 #define PUBLIC_COMPILE_OPTIONS \
1098 (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
1099 PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
1100 PCRE_NO_AUTO_CAPTURE|PCRE_NO_AUTO_POSSESS| \
1101 PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1102 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1103 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE|PCRE_NEVER_UTF)
1104
1105 #define PUBLIC_EXEC_OPTIONS \
1106 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1107 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
1108 PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
1109
1110 #define PUBLIC_DFA_EXEC_OPTIONS \
1111 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1112 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
1113 PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1114 PCRE_NO_START_OPTIMIZE)
1115
1116 #define PUBLIC_STUDY_OPTIONS \
1117 (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
1118 PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1119
1120 #define PUBLIC_JIT_EXEC_OPTIONS \
1121 (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
1122 PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
1123
1124 /* Magic number to provide a small check against being handed junk. */
1125
1126 #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
1127
1128 /* This variable is used to detect a loaded regular expression
1129 in different endianness. */
1130
1131 #define REVERSED_MAGIC_NUMBER 0x45524350UL /* 'ERCP' */
1132
1133 /* The maximum remaining length of subject we are prepared to search for a
1134 req_byte match. */
1135
1136 #define REQ_BYTE_MAX 1000
1137
1138 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1139 environments where these macros are defined elsewhere. Unfortunately, there
1140 is no way to do the same for the typedef. */
1141
1142 typedef int BOOL;
1143
1144 #ifndef FALSE
1145 #define FALSE 0
1146 #define TRUE 1
1147 #endif
1148
1149 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1150 character constants like '*' because the compiler would emit their EBCDIC code,
1151 which is different from their ASCII/UTF-8 code. Instead we define macros for
1152 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1153 is enabled. When UTF-8 support is not enabled, the definitions use character
1154 literals. Both character and string versions of each character are needed, and
1155 there are some longer strings as well.
1156
1157 This means that, on EBCDIC platforms, the PCRE library can handle either
1158 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1159 would need different lookups depending on whether PCRE_UTF8 was set or not.
1160 This would make it impossible to use characters in switch/case statements,
1161 which would reduce performance. For a theoretical use (which nobody has asked
1162 for) in a minority area (EBCDIC platforms), this is not sensible. Any
1163 application that did need both could compile two versions of the library, using
1164 macros to give the functions distinct names. */
1165
1166 #ifndef SUPPORT_UTF
1167
1168 /* UTF-8 support is not enabled; use the platform-dependent character literals
1169 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1170 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1171 characters, a common practice has been to use its NL (0x15) character as the
1172 line terminator in C-like processing environments. However, sometimes the LF
1173 (0x25) character is used instead, according to this Unicode document:
1174
1175 http://unicode.org/standard/reports/tr13/tr13-5.html
1176
1177 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1178 instead. Whichever is *not* chosen is defined as NEL.
1179
1180 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1181 same code point. */
1182
1183 #ifdef EBCDIC
1184
1185 #ifndef EBCDIC_NL25
1186 #define CHAR_NL '\x15'
1187 #define CHAR_NEL '\x25'
1188 #define STR_NL "\x15"
1189 #define STR_NEL "\x25"
1190 #else
1191 #define CHAR_NL '\x25'
1192 #define CHAR_NEL '\x15'
1193 #define STR_NL "\x25"
1194 #define STR_NEL "\x15"
1195 #endif
1196
1197 #define CHAR_LF CHAR_NL
1198 #define STR_LF STR_NL
1199
1200 #define CHAR_ESC '\047'
1201 #define CHAR_DEL '\007'
1202 #define STR_ESC "\047"
1203 #define STR_DEL "\007"
1204
1205 #else /* Not EBCDIC */
1206
1207 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1208 compatibility. NEL is the Unicode newline character; make sure it is
1209 a positive value. */
1210
1211 #define CHAR_LF '\n'
1212 #define CHAR_NL CHAR_LF
1213 #define CHAR_NEL ((unsigned char)'\x85')
1214 #define CHAR_ESC '\033'
1215 #define CHAR_DEL '\177'
1216
1217 #define STR_LF "\n"
1218 #define STR_NL STR_LF
1219 #define STR_NEL "\x85"
1220 #define STR_ESC "\033"
1221 #define STR_DEL "\177"
1222
1223 #endif /* EBCDIC */
1224
1225 /* The remaining definitions work in both environments. */
1226
1227 #define CHAR_NULL '\0'
1228 #define CHAR_HT '\t'
1229 #define CHAR_VT '\v'
1230 #define CHAR_FF '\f'
1231 #define CHAR_CR '\r'
1232 #define CHAR_BS '\b'
1233 #define CHAR_BEL '\a'
1234
1235 #define CHAR_SPACE ' '
1236 #define CHAR_EXCLAMATION_MARK '!'
1237 #define CHAR_QUOTATION_MARK '"'
1238 #define CHAR_NUMBER_SIGN '#'
1239 #define CHAR_DOLLAR_SIGN '$'
1240 #define CHAR_PERCENT_SIGN '%'
1241 #define CHAR_AMPERSAND '&'
1242 #define CHAR_APOSTROPHE '\''
1243 #define CHAR_LEFT_PARENTHESIS '('
1244 #define CHAR_RIGHT_PARENTHESIS ')'
1245 #define CHAR_ASTERISK '*'
1246 #define CHAR_PLUS '+'
1247 #define CHAR_COMMA ','
1248 #define CHAR_MINUS '-'
1249 #define CHAR_DOT '.'
1250 #define CHAR_SLASH '/'
1251 #define CHAR_0 '0'
1252 #define CHAR_1 '1'
1253 #define CHAR_2 '2'
1254 #define CHAR_3 '3'
1255 #define CHAR_4 '4'
1256 #define CHAR_5 '5'
1257 #define CHAR_6 '6'
1258 #define CHAR_7 '7'
1259 #define CHAR_8 '8'
1260 #define CHAR_9 '9'
1261 #define CHAR_COLON ':'
1262 #define CHAR_SEMICOLON ';'
1263 #define CHAR_LESS_THAN_SIGN '<'
1264 #define CHAR_EQUALS_SIGN '='
1265 #define CHAR_GREATER_THAN_SIGN '>'
1266 #define CHAR_QUESTION_MARK '?'
1267 #define CHAR_COMMERCIAL_AT '@'
1268 #define CHAR_A 'A'
1269 #define CHAR_B 'B'
1270 #define CHAR_C 'C'
1271 #define CHAR_D 'D'
1272 #define CHAR_E 'E'
1273 #define CHAR_F 'F'
1274 #define CHAR_G 'G'
1275 #define CHAR_H 'H'
1276 #define CHAR_I 'I'
1277 #define CHAR_J 'J'
1278 #define CHAR_K 'K'
1279 #define CHAR_L 'L'
1280 #define CHAR_M 'M'
1281 #define CHAR_N 'N'
1282 #define CHAR_O 'O'
1283 #define CHAR_P 'P'
1284 #define CHAR_Q 'Q'
1285 #define CHAR_R 'R'
1286 #define CHAR_S 'S'
1287 #define CHAR_T 'T'
1288 #define CHAR_U 'U'
1289 #define CHAR_V 'V'
1290 #define CHAR_W 'W'
1291 #define CHAR_X 'X'
1292 #define CHAR_Y 'Y'
1293 #define CHAR_Z 'Z'
1294 #define CHAR_LEFT_SQUARE_BRACKET '['
1295 #define CHAR_BACKSLASH '\\'
1296 #define CHAR_RIGHT_SQUARE_BRACKET ']'
1297 #define CHAR_CIRCUMFLEX_ACCENT '^'
1298 #define CHAR_UNDERSCORE '_'
1299 #define CHAR_GRAVE_ACCENT '`'
1300 #define CHAR_a 'a'
1301 #define CHAR_b 'b'
1302 #define CHAR_c 'c'
1303 #define CHAR_d 'd'
1304 #define CHAR_e 'e'
1305 #define CHAR_f 'f'
1306 #define CHAR_g 'g'
1307 #define CHAR_h 'h'
1308 #define CHAR_i 'i'
1309 #define CHAR_j 'j'
1310 #define CHAR_k 'k'
1311 #define CHAR_l 'l'
1312 #define CHAR_m 'm'
1313 #define CHAR_n 'n'
1314 #define CHAR_o 'o'
1315 #define CHAR_p 'p'
1316 #define CHAR_q 'q'
1317 #define CHAR_r 'r'
1318 #define CHAR_s 's'
1319 #define CHAR_t 't'
1320 #define CHAR_u 'u'
1321 #define CHAR_v 'v'
1322 #define CHAR_w 'w'
1323 #define CHAR_x 'x'
1324 #define CHAR_y 'y'
1325 #define CHAR_z 'z'
1326 #define CHAR_LEFT_CURLY_BRACKET '{'
1327 #define CHAR_VERTICAL_LINE '|'
1328 #define CHAR_RIGHT_CURLY_BRACKET '}'
1329 #define CHAR_TILDE '~'
1330
1331 #define STR_HT "\t"
1332 #define STR_VT "\v"
1333 #define STR_FF "\f"
1334 #define STR_CR "\r"
1335 #define STR_BS "\b"
1336 #define STR_BEL "\a"
1337
1338 #define STR_SPACE " "
1339 #define STR_EXCLAMATION_MARK "!"
1340 #define STR_QUOTATION_MARK "\""
1341 #define STR_NUMBER_SIGN "#"
1342 #define STR_DOLLAR_SIGN "$"
1343 #define STR_PERCENT_SIGN "%"
1344 #define STR_AMPERSAND "&"
1345 #define STR_APOSTROPHE "'"
1346 #define STR_LEFT_PARENTHESIS "("
1347 #define STR_RIGHT_PARENTHESIS ")"
1348 #define STR_ASTERISK "*"
1349 #define STR_PLUS "+"
1350 #define STR_COMMA ","
1351 #define STR_MINUS "-"
1352 #define STR_DOT "."
1353 #define STR_SLASH "/"
1354 #define STR_0 "0"
1355 #define STR_1 "1"
1356 #define STR_2 "2"
1357 #define STR_3 "3"
1358 #define STR_4 "4"
1359 #define STR_5 "5"
1360 #define STR_6 "6"
1361 #define STR_7 "7"
1362 #define STR_8 "8"
1363 #define STR_9 "9"
1364 #define STR_COLON ":"
1365 #define STR_SEMICOLON ";"
1366 #define STR_LESS_THAN_SIGN "<"
1367 #define STR_EQUALS_SIGN "="
1368 #define STR_GREATER_THAN_SIGN ">"
1369 #define STR_QUESTION_MARK "?"
1370 #define STR_COMMERCIAL_AT "@"
1371 #define STR_A "A"
1372 #define STR_B "B"
1373 #define STR_C "C"
1374 #define STR_D "D"
1375 #define STR_E "E"
1376 #define STR_F "F"
1377 #define STR_G "G"
1378 #define STR_H "H"
1379 #define STR_I "I"
1380 #define STR_J "J"
1381 #define STR_K "K"
1382 #define STR_L "L"
1383 #define STR_M "M"
1384 #define STR_N "N"
1385 #define STR_O "O"
1386 #define STR_P "P"
1387 #define STR_Q "Q"
1388 #define STR_R "R"
1389 #define STR_S "S"
1390 #define STR_T "T"
1391 #define STR_U "U"
1392 #define STR_V "V"
1393 #define STR_W "W"
1394 #define STR_X "X"
1395 #define STR_Y "Y"
1396 #define STR_Z "Z"
1397 #define STR_LEFT_SQUARE_BRACKET "["
1398 #define STR_BACKSLASH "\\"
1399 #define STR_RIGHT_SQUARE_BRACKET "]"
1400 #define STR_CIRCUMFLEX_ACCENT "^"
1401 #define STR_UNDERSCORE "_"
1402 #define STR_GRAVE_ACCENT "`"
1403 #define STR_a "a"
1404 #define STR_b "b"
1405 #define STR_c "c"
1406 #define STR_d "d"
1407 #define STR_e "e"
1408 #define STR_f "f"
1409 #define STR_g "g"
1410 #define STR_h "h"
1411 #define STR_i "i"
1412 #define STR_j "j"
1413 #define STR_k "k"
1414 #define STR_l "l"
1415 #define STR_m "m"
1416 #define STR_n "n"
1417 #define STR_o "o"
1418 #define STR_p "p"
1419 #define STR_q "q"
1420 #define STR_r "r"
1421 #define STR_s "s"
1422 #define STR_t "t"
1423 #define STR_u "u"
1424 #define STR_v "v"
1425 #define STR_w "w"
1426 #define STR_x "x"
1427 #define STR_y "y"
1428 #define STR_z "z"
1429 #define STR_LEFT_CURLY_BRACKET "{"
1430 #define STR_VERTICAL_LINE "|"
1431 #define STR_RIGHT_CURLY_BRACKET "}"
1432 #define STR_TILDE "~"
1433
1434 #define STRING_ACCEPT0 "ACCEPT\0"
1435 #define STRING_COMMIT0 "COMMIT\0"
1436 #define STRING_F0 "F\0"
1437 #define STRING_FAIL0 "FAIL\0"
1438 #define STRING_MARK0 "MARK\0"
1439 #define STRING_PRUNE0 "PRUNE\0"
1440 #define STRING_SKIP0 "SKIP\0"
1441 #define STRING_THEN "THEN"
1442
1443 #define STRING_alpha0 "alpha\0"
1444 #define STRING_lower0 "lower\0"
1445 #define STRING_upper0 "upper\0"
1446 #define STRING_alnum0 "alnum\0"
1447 #define STRING_ascii0 "ascii\0"
1448 #define STRING_blank0 "blank\0"
1449 #define STRING_cntrl0 "cntrl\0"
1450 #define STRING_digit0 "digit\0"
1451 #define STRING_graph0 "graph\0"
1452 #define STRING_print0 "print\0"
1453 #define STRING_punct0 "punct\0"
1454 #define STRING_space0 "space\0"
1455 #define STRING_word0 "word\0"
1456 #define STRING_xdigit "xdigit"
1457
1458 #define STRING_DEFINE "DEFINE"
1459 #define STRING_WEIRD_STARTWORD "[:<:]]"
1460 #define STRING_WEIRD_ENDWORD "[:>:]]"
1461
1462 #define STRING_CR_RIGHTPAR "CR)"
1463 #define STRING_LF_RIGHTPAR "LF)"
1464 #define STRING_CRLF_RIGHTPAR "CRLF)"
1465 #define STRING_ANY_RIGHTPAR "ANY)"
1466 #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1467 #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1468 #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1469 #define STRING_UTF8_RIGHTPAR "UTF8)"
1470 #define STRING_UTF16_RIGHTPAR "UTF16)"
1471 #define STRING_UTF32_RIGHTPAR "UTF32)"
1472 #define STRING_UTF_RIGHTPAR "UTF)"
1473 #define STRING_UCP_RIGHTPAR "UCP)"
1474 #define STRING_NO_AUTO_POSSESS_RIGHTPAR "NO_AUTO_POSSESS)"
1475 #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1476 #define STRING_LIMIT_MATCH_EQ "LIMIT_MATCH="
1477 #define STRING_LIMIT_RECURSION_EQ "LIMIT_RECURSION="
1478
1479 #else /* SUPPORT_UTF */
1480
1481 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1482 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1483 only. */
1484
1485 #define CHAR_HT '\011'
1486 #define CHAR_VT '\013'
1487 #define CHAR_FF '\014'
1488 #define CHAR_CR '\015'
1489 #define CHAR_LF '\012'
1490 #define CHAR_NL CHAR_LF
1491 #define CHAR_NEL ((unsigned char)'\x85')
1492 #define CHAR_BS '\010'
1493 #define CHAR_BEL '\007'
1494 #define CHAR_ESC '\033'
1495 #define CHAR_DEL '\177'
1496
1497 #define CHAR_NULL '\0'
1498 #define CHAR_SPACE '\040'
1499 #define CHAR_EXCLAMATION_MARK '\041'
1500 #define CHAR_QUOTATION_MARK '\042'
1501 #define CHAR_NUMBER_SIGN '\043'
1502 #define CHAR_DOLLAR_SIGN '\044'
1503 #define CHAR_PERCENT_SIGN '\045'
1504 #define CHAR_AMPERSAND '\046'
1505 #define CHAR_APOSTROPHE '\047'
1506 #define CHAR_LEFT_PARENTHESIS '\050'
1507 #define CHAR_RIGHT_PARENTHESIS '\051'
1508 #define CHAR_ASTERISK '\052'
1509 #define CHAR_PLUS '\053'
1510 #define CHAR_COMMA '\054'
1511 #define CHAR_MINUS '\055'
1512 #define CHAR_DOT '\056'
1513 #define CHAR_SLASH '\057'
1514 #define CHAR_0 '\060'
1515 #define CHAR_1 '\061'
1516 #define CHAR_2 '\062'
1517 #define CHAR_3 '\063'
1518 #define CHAR_4 '\064'
1519 #define CHAR_5 '\065'
1520 #define CHAR_6 '\066'
1521 #define CHAR_7 '\067'
1522 #define CHAR_8 '\070'
1523 #define CHAR_9 '\071'
1524 #define CHAR_COLON '\072'
1525 #define CHAR_SEMICOLON '\073'
1526 #define CHAR_LESS_THAN_SIGN '\074'
1527 #define CHAR_EQUALS_SIGN '\075'
1528 #define CHAR_GREATER_THAN_SIGN '\076'
1529 #define CHAR_QUESTION_MARK '\077'
1530 #define CHAR_COMMERCIAL_AT '\100'
1531 #define CHAR_A '\101'
1532 #define CHAR_B '\102'
1533 #define CHAR_C '\103'
1534 #define CHAR_D '\104'
1535 #define CHAR_E '\105'
1536 #define CHAR_F '\106'
1537 #define CHAR_G '\107'
1538 #define CHAR_H '\110'
1539 #define CHAR_I '\111'
1540 #define CHAR_J '\112'
1541 #define CHAR_K '\113'
1542 #define CHAR_L '\114'
1543 #define CHAR_M '\115'
1544 #define CHAR_N '\116'
1545 #define CHAR_O '\117'
1546 #define CHAR_P '\120'
1547 #define CHAR_Q '\121'
1548 #define CHAR_R '\122'
1549 #define CHAR_S '\123'
1550 #define CHAR_T '\124'
1551 #define CHAR_U '\125'
1552 #define CHAR_V '\126'
1553 #define CHAR_W '\127'
1554 #define CHAR_X '\130'
1555 #define CHAR_Y '\131'
1556 #define CHAR_Z '\132'
1557 #define CHAR_LEFT_SQUARE_BRACKET '\133'
1558 #define CHAR_BACKSLASH '\134'
1559 #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1560 #define CHAR_CIRCUMFLEX_ACCENT '\136'
1561 #define CHAR_UNDERSCORE '\137'
1562 #define CHAR_GRAVE_ACCENT '\140'
1563 #define CHAR_a '\141'
1564 #define CHAR_b '\142'
1565 #define CHAR_c '\143'
1566 #define CHAR_d '\144'
1567 #define CHAR_e '\145'
1568 #define CHAR_f '\146'
1569 #define CHAR_g '\147'
1570 #define CHAR_h '\150'
1571 #define CHAR_i '\151'
1572 #define CHAR_j '\152'
1573 #define CHAR_k '\153'
1574 #define CHAR_l '\154'
1575 #define CHAR_m '\155'
1576 #define CHAR_n '\156'
1577 #define CHAR_o '\157'
1578 #define CHAR_p '\160'
1579 #define CHAR_q '\161'
1580 #define CHAR_r '\162'
1581 #define CHAR_s '\163'
1582 #define CHAR_t '\164'
1583 #define CHAR_u '\165'
1584 #define CHAR_v '\166'
1585 #define CHAR_w '\167'
1586 #define CHAR_x '\170'
1587 #define CHAR_y '\171'
1588 #define CHAR_z '\172'
1589 #define CHAR_LEFT_CURLY_BRACKET '\173'
1590 #define CHAR_VERTICAL_LINE '\174'
1591 #define CHAR_RIGHT_CURLY_BRACKET '\175'
1592 #define CHAR_TILDE '\176'
1593
1594 #define STR_HT "\011"
1595 #define STR_VT "\013"
1596 #define STR_FF "\014"
1597 #define STR_CR "\015"
1598 #define STR_NL "\012"
1599 #define STR_BS "\010"
1600 #define STR_BEL "\007"
1601 #define STR_ESC "\033"
1602 #define STR_DEL "\177"
1603
1604 #define STR_SPACE "\040"
1605 #define STR_EXCLAMATION_MARK "\041"
1606 #define STR_QUOTATION_MARK "\042"
1607 #define STR_NUMBER_SIGN "\043"
1608 #define STR_DOLLAR_SIGN "\044"
1609 #define STR_PERCENT_SIGN "\045"
1610 #define STR_AMPERSAND "\046"
1611 #define STR_APOSTROPHE "\047"
1612 #define STR_LEFT_PARENTHESIS "\050"
1613 #define STR_RIGHT_PARENTHESIS "\051"
1614 #define STR_ASTERISK "\052"
1615 #define STR_PLUS "\053"
1616 #define STR_COMMA "\054"
1617 #define STR_MINUS "\055"
1618 #define STR_DOT "\056"
1619 #define STR_SLASH "\057"
1620 #define STR_0 "\060"
1621 #define STR_1 "\061"
1622 #define STR_2 "\062"
1623 #define STR_3 "\063"
1624 #define STR_4 "\064"
1625 #define STR_5 "\065"
1626 #define STR_6 "\066"
1627 #define STR_7 "\067"
1628 #define STR_8 "\070"
1629 #define STR_9 "\071"
1630 #define STR_COLON "\072"
1631 #define STR_SEMICOLON "\073"
1632 #define STR_LESS_THAN_SIGN "\074"
1633 #define STR_EQUALS_SIGN "\075"
1634 #define STR_GREATER_THAN_SIGN "\076"
1635 #define STR_QUESTION_MARK "\077"
1636 #define STR_COMMERCIAL_AT "\100"
1637 #define STR_A "\101"
1638 #define STR_B "\102"
1639 #define STR_C "\103"
1640 #define STR_D "\104"
1641 #define STR_E "\105"
1642 #define STR_F "\106"
1643 #define STR_G "\107"
1644 #define STR_H "\110"
1645 #define STR_I "\111"
1646 #define STR_J "\112"
1647 #define STR_K "\113"
1648 #define STR_L "\114"
1649 #define STR_M "\115"
1650 #define STR_N "\116"
1651 #define STR_O "\117"
1652 #define STR_P "\120"
1653 #define STR_Q "\121"
1654 #define STR_R "\122"
1655 #define STR_S "\123"
1656 #define STR_T "\124"
1657 #define STR_U "\125"
1658 #define STR_V "\126"
1659 #define STR_W "\127"
1660 #define STR_X "\130"
1661 #define STR_Y "\131"
1662 #define STR_Z "\132"
1663 #define STR_LEFT_SQUARE_BRACKET "\133"
1664 #define STR_BACKSLASH "\134"
1665 #define STR_RIGHT_SQUARE_BRACKET "\135"
1666 #define STR_CIRCUMFLEX_ACCENT "\136"
1667 #define STR_UNDERSCORE "\137"
1668 #define STR_GRAVE_ACCENT "\140"
1669 #define STR_a "\141"
1670 #define STR_b "\142"
1671 #define STR_c "\143"
1672 #define STR_d "\144"
1673 #define STR_e "\145"
1674 #define STR_f "\146"
1675 #define STR_g "\147"
1676 #define STR_h "\150"
1677 #define STR_i "\151"
1678 #define STR_j "\152"
1679 #define STR_k "\153"
1680 #define STR_l "\154"
1681 #define STR_m "\155"
1682 #define STR_n "\156"
1683 #define STR_o "\157"
1684 #define STR_p "\160"
1685 #define STR_q "\161"
1686 #define STR_r "\162"
1687 #define STR_s "\163"
1688 #define STR_t "\164"
1689 #define STR_u "\165"
1690 #define STR_v "\166"
1691 #define STR_w "\167"
1692 #define STR_x "\170"
1693 #define STR_y "\171"
1694 #define STR_z "\172"
1695 #define STR_LEFT_CURLY_BRACKET "\173"
1696 #define STR_VERTICAL_LINE "\174"
1697 #define STR_RIGHT_CURLY_BRACKET "\175"
1698 #define STR_TILDE "\176"
1699
1700 #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1701 #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1702 #define STRING_F0 STR_F "\0"
1703 #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1704 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1705 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1706 #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1707 #define STRING_THEN STR_T STR_H STR_E STR_N
1708
1709 #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1710 #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1711 #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1712 #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1713 #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1714 #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1715 #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1716 #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1717 #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1718 #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1719 #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1720 #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1721 #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1722 #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1723
1724 #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1725 #define STRING_WEIRD_STARTWORD STR_LEFT_SQUARE_BRACKET STR_COLON STR_LESS_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
1726 #define STRING_WEIRD_ENDWORD STR_LEFT_SQUARE_BRACKET STR_COLON STR_GREATER_THAN_SIGN STR_COLON STR_RIGHT_SQUARE_BRACKET STR_RIGHT_SQUARE_BRACKET
1727
1728 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1729 #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1730 #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1731 #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1732 #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1733 #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
1734 #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
1735 #define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1736 #define STRING_UTF16_RIGHTPAR STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1737 #define STRING_UTF32_RIGHTPAR STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1738 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1739 #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1740 #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
1741 #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
1742 #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
1743 #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
1744
1745 #endif /* SUPPORT_UTF */
1746
1747 /* Escape items that are just an encoding of a particular data value. */
1748
1749 #ifndef ESC_e
1750 #define ESC_e CHAR_ESC
1751 #endif
1752
1753 #ifndef ESC_f
1754 #define ESC_f CHAR_FF
1755 #endif
1756
1757 #ifndef ESC_n
1758 #define ESC_n CHAR_LF
1759 #endif
1760
1761 #ifndef ESC_r
1762 #define ESC_r CHAR_CR
1763 #endif
1764
1765 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1766 (presumably because of all the others like size_t). */
1767
1768 #ifndef ESC_tee
1769 #define ESC_tee CHAR_HT
1770 #endif
1771
1772 /* Codes for different types of Unicode property */
1773
1774 #define PT_ANY 0 /* Any property - matches all chars */
1775 #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1776 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1777 #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1778 #define PT_SC 4 /* Script (e.g. Han) */
1779 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1780 #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1781 #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1782 #define PT_WORD 8 /* Word - L plus N plus underscore */
1783 #define PT_CLIST 9 /* Pseudo-property: match character list */
1784 #define PT_UCNC 10 /* Universal Character nameable character */
1785 #define PT_TABSIZE 11 /* Size of square table for autopossessify tests */
1786
1787 /* The following special properties are used only in XCLASS items, when POSIX
1788 classes are specified and PCRE_UCP is set - in other words, for Unicode
1789 handling of these classes. They are not available via the \p or \P escapes like
1790 those in the above list, and so they do not take part in the autopossessifying
1791 table. */
1792
1793 #define PT_PXGRAPH 11 /* [:graph:] - characters that mark the paper */
1794 #define PT_PXPRINT 12 /* [:print:] - [:graph:] plus non-control spaces */
1795 #define PT_PXPUNCT 13 /* [:punct:] - punctuation characters */
1796
1797 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1798 contain characters with values greater than 255. */
1799
1800 #define XCL_NOT 0x01 /* Flag: this is a negative class */
1801 #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1802 #define XCL_HASPROP 0x04 /* Flag: property checks are present. */
1803
1804 #define XCL_END 0 /* Marks end of individual items */
1805 #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1806 #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1807 #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1808 #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1809
1810 /* These are escaped items that aren't just an encoding of a particular data
1811 value such as \n. They must have non-zero values, as check_escape() returns 0
1812 for a data character. Also, they must appear in the same order as in the
1813 opcode definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1814 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1815 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1816 non-DOTALL mode, "." behaves like \N.
1817
1818 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1819 when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1820 They must be contiguous, and remain in order so that the replacements can be
1821 looked up from a table.
1822
1823 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1824 check_escape(). There are two tests in the code for an escape
1825 greater than ESC_b and less than ESC_Z to detect the types that may be
1826 repeated. These are the types that consume characters. If any new escapes are
1827 put in between that don't consume a character, that code will have to change.
1828 */
1829
1830 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1831 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1832 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1833 ESC_E, ESC_Q, ESC_g, ESC_k,
1834 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1835
1836
1837 /********************** Opcode definitions ******************/
1838
1839 /****** NOTE NOTE NOTE ******
1840
1841 Starting from 1 (i.e. after OP_END), the values up to OP_EOD must correspond in
1842 order to the list of escapes immediately above. Furthermore, values up to
1843 OP_DOLLM must not be changed without adjusting the table called autoposstab in
1844 pcre_compile.c
1845
1846 Whenever this list is updated, the two macro definitions that follow must be
1847 updated to match. The possessification table called "opcode_possessify" in
1848 pcre_compile.c must also be updated, and also the tables called "coptable"
1849 and "poptable" in pcre_dfa_exec.c.
1850
1851 ****** NOTE NOTE NOTE ******/
1852
1853
1854 /* The values between FIRST_AUTOTAB_OP and LAST_AUTOTAB_RIGHT_OP, inclusive,
1855 are used in a table for deciding whether a repeated character type can be
1856 auto-possessified. */
1857
1858 #define FIRST_AUTOTAB_OP OP_NOT_DIGIT
1859 #define LAST_AUTOTAB_LEFT_OP OP_EXTUNI
1860 #define LAST_AUTOTAB_RIGHT_OP OP_DOLLM
1861
1862 enum {
1863 OP_END, /* 0 End of pattern */
1864
1865 /* Values corresponding to backslashed metacharacters */
1866
1867 OP_SOD, /* 1 Start of data: \A */
1868 OP_SOM, /* 2 Start of match (subject + offset): \G */
1869 OP_SET_SOM, /* 3 Set start of match (\K) */
1870 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1871 OP_WORD_BOUNDARY, /* 5 \b */
1872 OP_NOT_DIGIT, /* 6 \D */
1873 OP_DIGIT, /* 7 \d */
1874 OP_NOT_WHITESPACE, /* 8 \S */
1875 OP_WHITESPACE, /* 9 \s */
1876 OP_NOT_WORDCHAR, /* 10 \W */
1877 OP_WORDCHAR, /* 11 \w */
1878
1879 OP_ANY, /* 12 Match any character except newline (\N) */
1880 OP_ALLANY, /* 13 Match any character */
1881 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1882 OP_NOTPROP, /* 15 \P (not Unicode property) */
1883 OP_PROP, /* 16 \p (Unicode property) */
1884 OP_ANYNL, /* 17 \R (any newline sequence) */
1885 OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1886 OP_HSPACE, /* 19 \h (horizontal whitespace) */
1887 OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1888 OP_VSPACE, /* 21 \v (vertical whitespace) */
1889 OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1890 OP_EODN, /* 23 End of data or \n at end of data (\Z) */
1891 OP_EOD, /* 24 End of data (\z) */
1892
1893 /* Line end assertions */
1894
1895 OP_DOLL, /* 25 End of line - not multiline */
1896 OP_DOLLM, /* 26 End of line - multiline */
1897 OP_CIRC, /* 27 Start of line - not multiline */
1898 OP_CIRCM, /* 28 Start of line - multiline */
1899
1900 /* Single characters; caseful must precede the caseless ones */
1901
1902 OP_CHAR, /* 29 Match one character, casefully */
1903 OP_CHARI, /* 30 Match one character, caselessly */
1904 OP_NOT, /* 31 Match one character, not the given one, casefully */
1905 OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1906
1907 /* The following sets of 13 opcodes must always be kept in step because
1908 the offset from the first one is used to generate the others. */
1909
1910 /* Repeated characters; caseful must precede the caseless ones */
1911
1912 OP_STAR, /* 33 The maximizing and minimizing versions of */
1913 OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1914 OP_PLUS, /* 35 the minimizing one second. */
1915 OP_MINPLUS, /* 36 */
1916 OP_QUERY, /* 37 */
1917 OP_MINQUERY, /* 38 */
1918
1919 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1920 OP_MINUPTO, /* 40 */
1921 OP_EXACT, /* 41 Exactly n matches */
1922
1923 OP_POSSTAR, /* 42 Possessified star, caseful */
1924 OP_POSPLUS, /* 43 Possessified plus, caseful */
1925 OP_POSQUERY, /* 44 Posesssified query, caseful */
1926 OP_POSUPTO, /* 45 Possessified upto, caseful */
1927
1928 /* Repeated characters; caseless must follow the caseful ones */
1929
1930 OP_STARI, /* 46 */
1931 OP_MINSTARI, /* 47 */
1932 OP_PLUSI, /* 48 */
1933 OP_MINPLUSI, /* 49 */
1934 OP_QUERYI, /* 50 */
1935 OP_MINQUERYI, /* 51 */
1936
1937 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1938 OP_MINUPTOI, /* 53 */
1939 OP_EXACTI, /* 54 */
1940
1941 OP_POSSTARI, /* 55 Possessified star, caseless */
1942 OP_POSPLUSI, /* 56 Possessified plus, caseless */
1943 OP_POSQUERYI, /* 57 Posesssified query, caseless */
1944 OP_POSUPTOI, /* 58 Possessified upto, caseless */
1945
1946 /* The negated ones must follow the non-negated ones, and match them */
1947 /* Negated repeated character, caseful; must precede the caseless ones */
1948
1949 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
1950 OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
1951 OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
1952 OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
1953 OP_NOTQUERY, /* 63 */
1954 OP_NOTMINQUERY, /* 64 */
1955
1956 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
1957 OP_NOTMINUPTO, /* 66 */
1958 OP_NOTEXACT, /* 67 Exactly n matches */
1959
1960 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
1961 OP_NOTPOSPLUS, /* 69 */
1962 OP_NOTPOSQUERY, /* 70 */
1963 OP_NOTPOSUPTO, /* 71 */
1964
1965 /* Negated repeated character, caseless; must follow the caseful ones */
1966
1967 OP_NOTSTARI, /* 72 */
1968 OP_NOTMINSTARI, /* 73 */
1969 OP_NOTPLUSI, /* 74 */
1970 OP_NOTMINPLUSI, /* 75 */
1971 OP_NOTQUERYI, /* 76 */
1972 OP_NOTMINQUERYI, /* 77 */
1973
1974 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
1975 OP_NOTMINUPTOI, /* 79 */
1976 OP_NOTEXACTI, /* 80 Exactly n matches */
1977
1978 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
1979 OP_NOTPOSPLUSI, /* 82 */
1980 OP_NOTPOSQUERYI, /* 83 */
1981 OP_NOTPOSUPTOI, /* 84 */
1982
1983 /* Character types */
1984
1985 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
1986 OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
1987 OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
1988 OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
1989 OP_TYPEQUERY, /* 89 */
1990 OP_TYPEMINQUERY, /* 90 */
1991
1992 OP_TYPEUPTO, /* 91 From 0 to n matches */
1993 OP_TYPEMINUPTO, /* 92 */
1994 OP_TYPEEXACT, /* 93 Exactly n matches */
1995
1996 OP_TYPEPOSSTAR, /* 94 Possessified versions */
1997 OP_TYPEPOSPLUS, /* 95 */
1998 OP_TYPEPOSQUERY, /* 96 */
1999 OP_TYPEPOSUPTO, /* 97 */
2000
2001 /* These are used for character classes and back references; only the
2002 first six are the same as the sets above. */
2003
2004 OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
2005 OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
2006 OP_CRPLUS, /* 100 the minimizing one second. These codes must */
2007 OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
2008 OP_CRQUERY, /* 102 */
2009 OP_CRMINQUERY, /* 103 */
2010
2011 OP_CRRANGE, /* 104 These are different to the three sets above. */
2012 OP_CRMINRANGE, /* 105 */
2013
2014 OP_CRPOSSTAR, /* 106 Possessified versions */
2015 OP_CRPOSPLUS, /* 107 */
2016 OP_CRPOSQUERY, /* 108 */
2017 OP_CRPOSRANGE, /* 109 */
2018
2019 /* End of quantifier opcodes */
2020
2021 OP_CLASS, /* 110 Match a character class, chars < 256 only */
2022 OP_NCLASS, /* 111 Same, but the bitmap was created from a negative
2023 class - the difference is relevant only when a
2024 character > 255 is encountered. */
2025 OP_XCLASS, /* 112 Extended class for handling > 255 chars within the
2026 class. This does both positive and negative. */
2027 OP_REF, /* 113 Match a back reference, casefully */
2028 OP_REFI, /* 114 Match a back reference, caselessly */
2029 OP_DNREF, /* 115 Match a duplicate name backref, casefully */
2030 OP_DNREFI, /* 116 Match a duplicate name backref, caselessly */
2031 OP_RECURSE, /* 117 Match a numbered subpattern (possibly recursive) */
2032 OP_CALLOUT, /* 118 Call out to external function if provided */
2033
2034 OP_ALT, /* 119 Start of alternation */
2035 OP_KET, /* 120 End of group that doesn't have an unbounded repeat */
2036 OP_KETRMAX, /* 121 These two must remain together and in this */
2037 OP_KETRMIN, /* 122 order. They are for groups the repeat for ever. */
2038 OP_KETRPOS, /* 123 Possessive unlimited repeat. */
2039
2040 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
2041 asserts must remain in order. */
2042
2043 OP_REVERSE, /* 124 Move pointer back - used in lookbehind assertions */
2044 OP_ASSERT, /* 125 Positive lookahead */
2045 OP_ASSERT_NOT, /* 126 Negative lookahead */
2046 OP_ASSERTBACK, /* 127 Positive lookbehind */
2047 OP_ASSERTBACK_NOT, /* 128 Negative lookbehind */
2048
2049 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
2050 after the assertions, with ONCE first, as there's a test for >= ONCE for a
2051 subpattern that isn't an assertion. The POS versions must immediately follow
2052 the non-POS versions in each case. */
2053
2054 OP_ONCE, /* 129 Atomic group, contains captures */
2055 OP_ONCE_NC, /* 130 Atomic group containing no captures */
2056 OP_BRA, /* 131 Start of non-capturing bracket */
2057 OP_BRAPOS, /* 132 Ditto, with unlimited, possessive repeat */
2058 OP_CBRA, /* 133 Start of capturing bracket */
2059 OP_CBRAPOS, /* 134 Ditto, with unlimited, possessive repeat */
2060 OP_COND, /* 135 Conditional group */
2061
2062 /* These five must follow the previous five, in the same order. There's a
2063 check for >= SBRA to distinguish the two sets. */
2064
2065 OP_SBRA, /* 136 Start of non-capturing bracket, check empty */
2066 OP_SBRAPOS, /* 137 Ditto, with unlimited, possessive repeat */
2067 OP_SCBRA, /* 138 Start of capturing bracket, check empty */
2068 OP_SCBRAPOS, /* 139 Ditto, with unlimited, possessive repeat */
2069 OP_SCOND, /* 140 Conditional group, check empty */
2070
2071 /* The next two pairs must (respectively) be kept together. */
2072
2073 OP_CREF, /* 141 Used to hold a capture number as condition */
2074 OP_DNCREF, /* 142 Used to point to duplicate names as a condition */
2075 OP_RREF, /* 143 Used to hold a recursion number as condition */
2076 OP_DNRREF, /* 144 Used to point to duplicate names as a condition */
2077 OP_DEF, /* 145 The DEFINE condition */
2078
2079 OP_BRAZERO, /* 146 These two must remain together and in this */
2080 OP_BRAMINZERO, /* 147 order. */
2081 OP_BRAPOSZERO, /* 148 */
2082
2083 /* These are backtracking control verbs */
2084
2085 OP_MARK, /* 149 always has an argument */
2086 OP_PRUNE, /* 150 */
2087 OP_PRUNE_ARG, /* 151 same, but with argument */
2088 OP_SKIP, /* 152 */
2089 OP_SKIP_ARG, /* 153 same, but with argument */
2090 OP_THEN, /* 154 */
2091 OP_THEN_ARG, /* 155 same, but with argument */
2092 OP_COMMIT, /* 156 */
2093
2094 /* These are forced failure and success verbs */
2095
2096 OP_FAIL, /* 157 */
2097 OP_ACCEPT, /* 158 */
2098 OP_ASSERT_ACCEPT, /* 159 Used inside assertions */
2099 OP_CLOSE, /* 160 Used before OP_ACCEPT to close open captures */
2100
2101 /* This is used to skip a subpattern with a {0} quantifier */
2102
2103 OP_SKIPZERO, /* 161 */
2104
2105 /* This is not an opcode, but is used to check that tables indexed by opcode
2106 are the correct length, in order to catch updating errors - there have been
2107 some in the past. */
2108
2109 OP_TABLE_LENGTH
2110 };
2111
2112 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2113 definitions that follow must also be updated to match. There are also tables
2114 called "opcode_possessify" in pcre_compile.c and "coptable" and "poptable" in
2115 pcre_dfa_exec.c that must be updated. */
2116
2117
2118 /* This macro defines textual names for all the opcodes. These are used only
2119 for debugging, and some of them are only partial names. The macro is referenced
2120 only in pcre_printint.c, which fills out the full names in many cases (and in
2121 some cases doesn't actually use these names at all). */
2122
2123 #define OP_NAME_LIST \
2124 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
2125 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
2126 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
2127 "extuni", "\\Z", "\\z", \
2128 "$", "$", "^", "^", "char", "chari", "not", "noti", \
2129 "*", "*?", "+", "+?", "?", "??", \
2130 "{", "{", "{", \
2131 "*+","++", "?+", "{", \
2132 "*", "*?", "+", "+?", "?", "??", \
2133 "{", "{", "{", \
2134 "*+","++", "?+", "{", \
2135 "*", "*?", "+", "+?", "?", "??", \
2136 "{", "{", "{", \
2137 "*+","++", "?+", "{", \
2138 "*", "*?", "+", "+?", "?", "??", \
2139 "{", "{", "{", \
2140 "*+","++", "?+", "{", \
2141 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
2142 "*+","++", "?+", "{", \
2143 "*", "*?", "+", "+?", "?", "??", "{", "{", \
2144 "*+","++", "?+", "{", \
2145 "class", "nclass", "xclass", "Ref", "Refi", "DnRef", "DnRefi", \
2146 "Recurse", "Callout", \
2147 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
2148 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
2149 "Once", "Once_NC", \
2150 "Bra", "BraPos", "CBra", "CBraPos", \
2151 "Cond", \
2152 "SBra", "SBraPos", "SCBra", "SCBraPos", \
2153 "SCond", \
2154 "Cond ref", "Cond dnref", "Cond rec", "Cond dnrec", "Cond def", \
2155 "Brazero", "Braminzero", "Braposzero", \
2156 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
2157 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
2158 "*ACCEPT", "*ASSERT_ACCEPT", \
2159 "Close", "Skip zero"
2160
2161
2162 /* This macro defines the length of fixed length operations in the compiled
2163 regex. The lengths are used when searching for specific things, and also in the
2164 debugging printing of a compiled regex. We use a macro so that it can be
2165 defined close to the definitions of the opcodes themselves.
2166
2167 As things have been extended, some of these are no longer fixed lenths, but are
2168 minima instead. For example, the length of a single-character repeat may vary
2169 in UTF-8 mode. The code that uses this table must know about such things. */
2170
2171 #define OP_LENGTHS \
2172 1, /* End */ \
2173 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
2174 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
2175 1, 1, 1, /* Any, AllAny, Anybyte */ \
2176 3, 3, /* \P, \p */ \
2177 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
2178 1, /* \X */ \
2179 1, 1, 1, 1, 1, 1, /* \Z, \z, $, $M ^, ^M */ \
2180 2, /* Char - the minimum length */ \
2181 2, /* Chari - the minimum length */ \
2182 2, /* not */ \
2183 2, /* noti */ \
2184 /* Positive single-char repeats ** These are */ \
2185 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
2186 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto, minupto ** mode */ \
2187 2+IMM2_SIZE, /* exact */ \
2188 2, 2, 2, 2+IMM2_SIZE, /* *+, ++, ?+, upto+ */ \
2189 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
2190 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto I, minupto I */ \
2191 2+IMM2_SIZE, /* exact I */ \
2192 2, 2, 2, 2+IMM2_SIZE, /* *+I, ++I, ?+I, upto+I */ \
2193 /* Negative single-char repeats - only for chars < 256 */ \
2194 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
2195 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto, minupto */ \
2196 2+IMM2_SIZE, /* NOT exact */ \
2197 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *, +, ?, upto */ \
2198 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
2199 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto I, minupto I */ \
2200 2+IMM2_SIZE, /* NOT exact I */ \
2201 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *I, +I, ?I, upto I */ \
2202 /* Positive type repeats */ \
2203 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
2204 2+IMM2_SIZE, 2+IMM2_SIZE, /* Type upto, minupto */ \
2205 2+IMM2_SIZE, /* Type exact */ \
2206 2, 2, 2, 2+IMM2_SIZE, /* Possessive *+, ++, ?+, upto+ */ \
2207 /* Character class & ref repeats */ \
2208 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
2209 1+2*IMM2_SIZE, 1+2*IMM2_SIZE, /* CRRANGE, CRMINRANGE */ \
2210 1, 1, 1, 1+2*IMM2_SIZE, /* Possessive *+, ++, ?+, CRPOSRANGE */ \
2211 1+(32/sizeof(pcre_uchar)), /* CLASS */ \
2212 1+(32/sizeof(pcre_uchar)), /* NCLASS */ \
2213 0, /* XCLASS - variable length */ \
2214 1+IMM2_SIZE, /* REF */ \
2215 1+IMM2_SIZE, /* REFI */ \
2216 1+2*IMM2_SIZE, /* DNREF */ \
2217 1+2*IMM2_SIZE, /* DNREFI */ \
2218 1+LINK_SIZE, /* RECURSE */ \
2219 2+2*LINK_SIZE, /* CALLOUT */ \
2220 1+LINK_SIZE, /* Alt */ \
2221 1+LINK_SIZE, /* Ket */ \
2222 1+LINK_SIZE, /* KetRmax */ \
2223 1+LINK_SIZE, /* KetRmin */ \
2224 1+LINK_SIZE, /* KetRpos */ \
2225 1+LINK_SIZE, /* Reverse */ \
2226 1+LINK_SIZE, /* Assert */ \
2227 1+LINK_SIZE, /* Assert not */ \
2228 1+LINK_SIZE, /* Assert behind */ \
2229 1+LINK_SIZE, /* Assert behind not */ \
2230 1+LINK_SIZE, /* ONCE */ \
2231 1+LINK_SIZE, /* ONCE_NC */ \
2232 1+LINK_SIZE, /* BRA */ \
2233 1+LINK_SIZE, /* BRAPOS */ \
2234 1+LINK_SIZE+IMM2_SIZE, /* CBRA */ \
2235 1+LINK_SIZE+IMM2_SIZE, /* CBRAPOS */ \
2236 1+LINK_SIZE, /* COND */ \
2237 1+LINK_SIZE, /* SBRA */ \
2238 1+LINK_SIZE, /* SBRAPOS */ \
2239 1+LINK_SIZE+IMM2_SIZE, /* SCBRA */ \
2240 1+LINK_SIZE+IMM2_SIZE, /* SCBRAPOS */ \
2241 1+LINK_SIZE, /* SCOND */ \
2242 1+IMM2_SIZE, 1+2*IMM2_SIZE, /* CREF, DNCREF */ \
2243 1+IMM2_SIZE, 1+2*IMM2_SIZE, /* RREF, DNRREF */ \
2244 1, /* DEF */ \
2245 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
2246 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
2247 1, 3, /* SKIP, SKIP_ARG */ \
2248 1, 3, /* THEN, THEN_ARG */ \
2249 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
2250 1+IMM2_SIZE, 1 /* CLOSE, SKIPZERO */
2251
2252 /* A magic value for OP_RREF to indicate the "any recursion" condition. */
2253
2254 #define RREF_ANY 0xffff
2255
2256 /* Compile time error code numbers. They are given names so that they can more
2257 easily be tracked. When a new number is added, the table called eint in
2258 pcreposix.c must be updated. */
2259
2260 enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
2261 ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2262 ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2263 ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2264 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2265 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2266 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2267 ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERR78, ERR79,
2268 ERR80, ERR81, ERR82, ERR83, ERR84, ERRCOUNT };
2269
2270 /* JIT compiling modes. The function list is indexed by them. */
2271
2272 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2273 JIT_NUMBER_OF_COMPILE_MODES };
2274
2275 /* The real format of the start of the pcre block; the index of names and the
2276 code vector run on as long as necessary after the end. We store an explicit
2277 offset to the name table so that if a regex is compiled on one host, saved, and
2278 then run on another where the size of pointers is different, all might still
2279 be well.
2280
2281 The size of the structure must be a multiple of 8 bytes. For the case of
2282 compiled-on-4 and run-on-8, we include an extra pointer that is always NULL so
2283 that there are an even number of pointers which therefore are a multiple of 8
2284 bytes.
2285
2286 It is necessary to fork the struct for the 32 bit library, since it needs to
2287 use pcre_uint32 for first_char and req_char. We can't put an ifdef inside the
2288 typedef because pcretest needs access to the struct of the 8-, 16- and 32-bit
2289 variants.
2290
2291 *** WARNING ***
2292 When new fields are added to these structures, remember to adjust the code in
2293 pcre_byte_order.c that is concerned with swapping the byte order of the fields
2294 when a compiled regex is reloaded on a host with different endianness.
2295 *** WARNING ***
2296 There is also similar byte-flipping code in pcretest.c, which is used for
2297 testing the byte-flipping features. It must also be kept in step.
2298 *** WARNING ***
2299 */
2300
2301 typedef struct real_pcre8_or_16 {
2302 pcre_uint32 magic_number;
2303 pcre_uint32 size; /* Total that was malloced */
2304 pcre_uint32 options; /* Public options */
2305 pcre_uint32 flags; /* Private flags */
2306 pcre_uint32 limit_match; /* Limit set from regex */
2307 pcre_uint32 limit_recursion; /* Limit set from regex */
2308 pcre_uint16 first_char; /* Starting character */
2309 pcre_uint16 req_char; /* This character must be seen */
2310 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2311 pcre_uint16 top_bracket; /* Highest numbered group */
2312 pcre_uint16 top_backref; /* Highest numbered back reference */
2313 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2314 pcre_uint16 name_entry_size; /* Size of any name items */
2315 pcre_uint16 name_count; /* Number of name items */
2316 pcre_uint16 ref_count; /* Reference count */
2317 pcre_uint16 dummy1; /* To ensure size is a multiple of 8 */
2318 pcre_uint16 dummy2; /* To ensure size is a multiple of 8 */
2319 pcre_uint16 dummy3; /* To ensure size is a multiple of 8 */
2320 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2321 void *nullpad; /* NULL padding */
2322 } real_pcre8_or_16;
2323
2324 typedef struct real_pcre8_or_16 real_pcre;
2325 typedef struct real_pcre8_or_16 real_pcre16;
2326
2327 typedef struct real_pcre32 {
2328 pcre_uint32 magic_number;
2329 pcre_uint32 size; /* Total that was malloced */
2330 pcre_uint32 options; /* Public options */
2331 pcre_uint32 flags; /* Private flags */
2332 pcre_uint32 limit_match; /* Limit set from regex */
2333 pcre_uint32 limit_recursion; /* Limit set from regex */
2334 pcre_uint32 first_char; /* Starting character */
2335 pcre_uint32 req_char; /* This character must be seen */
2336 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2337 pcre_uint16 top_bracket; /* Highest numbered group */
2338 pcre_uint16 top_backref; /* Highest numbered back reference */
2339 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2340 pcre_uint16 name_entry_size; /* Size of any name items */
2341 pcre_uint16 name_count; /* Number of name items */
2342 pcre_uint16 ref_count; /* Reference count */
2343 pcre_uint16 dummy; /* To ensure size is a multiple of 8 */
2344 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2345 void *nullpad; /* NULL padding */
2346 } real_pcre32;
2347
2348 #if defined COMPILE_PCRE8
2349 #define REAL_PCRE real_pcre
2350 #elif defined COMPILE_PCRE16
2351 #define REAL_PCRE real_pcre16
2352 #elif defined COMPILE_PCRE32
2353 #define REAL_PCRE real_pcre32
2354 #endif
2355
2356 /* Assert that the size of REAL_PCRE is divisible by 8 */
2357 typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2358
2359 /* Needed in pcretest to access some fields in the real_pcre* structures
2360 * directly. They're unified for 8/16/32 bits since the structs only differ
2361 * after these fields; if that ever changes, need to fork those defines into
2362 * 8/16 and 32 bit versions. */
2363 #define REAL_PCRE_MAGIC(re) (((REAL_PCRE*)re)->magic_number)
2364 #define REAL_PCRE_SIZE(re) (((REAL_PCRE*)re)->size)
2365 #define REAL_PCRE_OPTIONS(re) (((REAL_PCRE*)re)->options)
2366 #define REAL_PCRE_FLAGS(re) (((REAL_PCRE*)re)->flags)
2367
2368 /* The format of the block used to store data from pcre_study(). The same
2369 remark (see NOTE above) about extending this structure applies. */
2370
2371 typedef struct pcre_study_data {
2372 pcre_uint32 size; /* Total that was malloced */
2373 pcre_uint32 flags; /* Private flags */
2374 pcre_uint8 start_bits[32]; /* Starting char bits */
2375 pcre_uint32 minlength; /* Minimum subject length */
2376 } pcre_study_data;
2377
2378 /* Structure for building a chain of open capturing subpatterns during
2379 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2380 encountered. This is also used to identify subpatterns that contain recursive
2381 back references to themselves, so that they can be made atomic. */
2382
2383 typedef struct open_capitem {
2384 struct open_capitem *next; /* Chain link */
2385 pcre_uint16 number; /* Capture number */
2386 pcre_uint16 flag; /* Set TRUE if recursive back ref */
2387 } open_capitem;
2388
2389 /* Structure for building a list of named groups during the first pass of
2390 compiling. */
2391
2392 typedef struct named_group {
2393 const pcre_uchar *name; /* Points to the name in the pattern */
2394 int length; /* Length of the name */
2395 pcre_uint32 number; /* Group number */
2396 } named_group;
2397
2398 /* Structure for passing "static" information around between the functions
2399 doing the compiling, so that they are thread-safe. */
2400
2401 typedef struct compile_data {
2402 const pcre_uint8 *lcc; /* Points to lower casing table */
2403 const pcre_uint8 *fcc; /* Points to case-flipping table */
2404 const pcre_uint8 *cbits; /* Points to character type table */
2405 const pcre_uint8 *ctypes; /* Points to table of type maps */
2406 const pcre_uchar *start_workspace;/* The start of working space */
2407 const pcre_uchar *start_code; /* The start of the compiled code */
2408 const pcre_uchar *start_pattern; /* The start of the pattern */
2409 const pcre_uchar *end_pattern; /* The end of the pattern */
2410 pcre_uchar *hwm; /* High watermark of workspace */
2411 open_capitem *open_caps; /* Chain of open capture items */
2412 named_group *named_groups; /* Points to vector in pre-compile */
2413 pcre_uchar *name_table; /* The name/number table */
2414 int names_found; /* Number of entries so far */
2415 int name_entry_size; /* Size of each entry */
2416 int named_group_list_size; /* Number of entries in the list */
2417 int workspace_size; /* Size of workspace */
2418 unsigned int bracount; /* Count of capturing parens as we compile */
2419 int final_bracount; /* Saved value after first pass */
2420 int max_lookbehind; /* Maximum lookbehind (characters) */
2421 int top_backref; /* Maximum back reference */
2422 unsigned int backref_map; /* Bitmap of low back refs */
2423 unsigned int namedrefcount; /* Number of backreferences by name */
2424 int parens_depth; /* Depth of nested parentheses */
2425 int assert_depth; /* Depth of nested assertions */
2426 pcre_uint32 external_options; /* External (initial) options */
2427 pcre_uint32 external_flags; /* External flag bits to be set */
2428 int req_varyopt; /* "After variable item" flag for reqbyte */
2429 BOOL had_accept; /* (*ACCEPT) encountered */
2430 BOOL had_pruneorskip; /* (*PRUNE) or (*SKIP) encountered */
2431 BOOL check_lookbehind; /* Lookbehinds need later checking */
2432 BOOL dupnames; /* Duplicate names exist */
2433 int nltype; /* Newline type */
2434 int nllen; /* Newline string length */
2435 pcre_uchar nl[4]; /* Newline string when fixed length */
2436 } compile_data;
2437
2438 /* Structure for maintaining a chain of pointers to the currently incomplete
2439 branches, for testing for left recursion while compiling. */
2440
2441 typedef struct branch_chain {
2442 struct branch_chain *outer;
2443 pcre_uchar *current_branch;
2444 } branch_chain;
2445
2446 /* Structure for items in a linked list that represents an explicit recursive
2447 call within the pattern; used by pcre_exec(). */
2448
2449 typedef struct recursion_info {
2450 struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2451 unsigned int group_num; /* Number of group that was called */
2452 int *offset_save; /* Pointer to start of saved offsets */
2453 int saved_max; /* Number of saved offsets */
2454 int saved_capture_last; /* Last capture number */
2455 PCRE_PUCHAR subject_position; /* Position at start of recursion */
2456 } recursion_info;
2457
2458 /* A similar structure for pcre_dfa_exec(). */
2459
2460 typedef struct dfa_recursion_info {
2461 struct dfa_recursion_info *prevrec;
2462 int group_num;
2463 PCRE_PUCHAR subject_position;
2464 } dfa_recursion_info;
2465
2466 /* Structure for building a chain of data for holding the values of the subject
2467 pointer at the start of each subpattern, so as to detect when an empty string
2468 has been matched by a subpattern - to break infinite loops; used by
2469 pcre_exec(). */
2470
2471 typedef struct eptrblock {
2472 struct eptrblock *epb_prev;
2473 PCRE_PUCHAR epb_saved_eptr;
2474 } eptrblock;
2475
2476
2477 /* Structure for passing "static" information around between the functions
2478 doing traditional NFA matching, so that they are thread-safe. */
2479
2480 typedef struct match_data {
2481 unsigned long int match_call_count; /* As it says */
2482 unsigned long int match_limit; /* As it says */
2483 unsigned long int match_limit_recursion; /* As it says */
2484 int *offset_vector; /* Offset vector */
2485 int offset_end; /* One past the end */
2486 int offset_max; /* The maximum usable for return data */
2487 int nltype; /* Newline type */
2488 int nllen; /* Newline string length */
2489 int name_count; /* Number of names in name table */
2490 int name_entry_size; /* Size of entry in names table */
2491 unsigned int skip_arg_count; /* For counting SKIP_ARGs */
2492 unsigned int ignore_skip_arg; /* For re-run when SKIP arg name not found */
2493 pcre_uchar *name_table; /* Table of names */
2494 pcre_uchar nl[4]; /* Newline string when fixed */
2495 const pcre_uint8 *lcc; /* Points to lower casing table */
2496 const pcre_uint8 *fcc; /* Points to case-flipping table */
2497 const pcre_uint8 *ctypes; /* Points to table of type maps */
2498 BOOL notbol; /* NOTBOL flag */
2499 BOOL noteol; /* NOTEOL flag */
2500 BOOL utf; /* UTF-8 / UTF-16 flag */
2501 BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
2502 BOOL use_ucp; /* PCRE_UCP flag */
2503 BOOL endonly; /* Dollar not before final \n */
2504 BOOL notempty; /* Empty string match not wanted */
2505 BOOL notempty_atstart; /* Empty string match at start not wanted */
2506 BOOL hitend; /* Hit the end of the subject at some point */
2507 BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
2508 BOOL hasthen; /* Pattern contains (*THEN) */
2509 const pcre_uchar *start_code; /* For use when recursing */
2510 PCRE_PUCHAR start_subject; /* Start of the subject string */
2511 PCRE_PUCHAR end_subject; /* End of the subject string */
2512 PCRE_PUCHAR start_match_ptr; /* Start of matched string */
2513 PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
2514 PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
2515 int partial; /* PARTIAL options */
2516 int end_offset_top; /* Highwater mark at end of match */
2517 pcre_int32 capture_last; /* Most recent capture number + overflow flag */
2518 int start_offset; /* The start offset value */
2519 int match_function_type; /* Set for certain special calls of MATCH() */
2520 eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
2521 int eptrn; /* Next free eptrblock */
2522 recursion_info *recursive; /* Linked list of recursion data */
2523 void *callout_data; /* To pass back to callouts */
2524 const pcre_uchar *mark; /* Mark pointer to pass back on success */
2525 const pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2526 const pcre_uchar *once_target; /* Where to back up to for atomic groups */
2527 #ifdef NO_RECURSE
2528 void *match_frames_base; /* For remembering malloc'd frames */
2529 #endif
2530 } match_data;
2531
2532 /* A similar structure is used for the same purpose by the DFA matching
2533 functions. */
2534
2535 typedef struct dfa_match_data {
2536 const pcre_uchar *start_code; /* Start of the compiled pattern */
2537 const pcre_uchar *start_subject ; /* Start of the subject string */
2538 const pcre_uchar *end_subject; /* End of subject string */
2539 const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2540 const pcre_uint8 *tables; /* Character tables */
2541 int start_offset; /* The start offset value */
2542 int moptions; /* Match options */
2543 int poptions; /* Pattern options */
2544 int nltype; /* Newline type */
2545 int nllen; /* Newline string length */
2546 pcre_uchar nl[4]; /* Newline string when fixed */
2547 void *callout_data; /* To pass back to callouts */
2548 dfa_recursion_info *recursive; /* Linked list of recursion data */
2549 } dfa_match_data;
2550
2551 /* Bit definitions for entries in the pcre_ctypes table. */
2552
2553 #define ctype_space 0x01
2554 #define ctype_letter 0x02
2555 #define ctype_digit 0x04
2556 #define ctype_xdigit 0x08
2557 #define ctype_word 0x10 /* alphanumeric or '_' */
2558 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
2559
2560 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2561 of bits for a class map. Some classes are built by combining these tables. */
2562
2563 #define cbit_space 0 /* [:space:] or \s */
2564 #define cbit_xdigit 32 /* [:xdigit:] */
2565 #define cbit_digit 64 /* [:digit:] or \d */
2566 #define cbit_upper 96 /* [:upper:] */
2567 #define cbit_lower 128 /* [:lower:] */
2568 #define cbit_word 160 /* [:word:] or \w */
2569 #define cbit_graph 192 /* [:graph:] */
2570 #define cbit_print 224 /* [:print:] */
2571 #define cbit_punct 256 /* [:punct:] */
2572 #define cbit_cntrl 288 /* [:cntrl:] */
2573 #define cbit_length 320 /* Length of the cbits table */
2574
2575 /* Offsets of the various tables from the base tables pointer, and
2576 total length. */
2577
2578 #define lcc_offset 0
2579 #define fcc_offset 256
2580 #define cbits_offset 512
2581 #define ctypes_offset (cbits_offset + cbit_length)
2582 #define tables_length (ctypes_offset + 256)
2583
2584 /* Internal function and data prefixes. */
2585
2586 #if defined COMPILE_PCRE8
2587 #ifndef PUBL
2588 #define PUBL(name) pcre_##name
2589 #endif
2590 #ifndef PRIV
2591 #define PRIV(name) _pcre_##name
2592 #endif
2593 #elif defined COMPILE_PCRE16
2594 #ifndef PUBL
2595 #define PUBL(name) pcre16_##name
2596 #endif
2597 #ifndef PRIV
2598 #define PRIV(name) _pcre16_##name
2599 #endif
2600 #elif defined COMPILE_PCRE32
2601 #ifndef PUBL
2602 #define PUBL(name) pcre32_##name
2603 #endif
2604 #ifndef PRIV
2605 #define PRIV(name) _pcre32_##name
2606 #endif
2607 #else
2608 #error Unsupported compiling mode
2609 #endif /* COMPILE_PCRE[8|16|32] */
2610
2611 /* Layout of the UCP type table that translates property names into types and
2612 codes. Each entry used to point directly to a name, but to reduce the number of
2613 relocations in shared libraries, it now has an offset into a single string
2614 instead. */
2615
2616 typedef struct {
2617 pcre_uint16 name_offset;
2618 pcre_uint16 type;
2619 pcre_uint16 value;
2620 } ucp_type_table;
2621
2622
2623 /* Internal shared data tables. These are tables that are used by more than one
2624 of the exported public functions. They have to be "external" in the C sense,
2625 but are not part of the PCRE public API. The data for these tables is in the
2626 pcre_tables.c module. */
2627
2628 #ifdef COMPILE_PCRE8
2629 extern const int PRIV(utf8_table1)[];
2630 extern const int PRIV(utf8_table1_size);
2631 extern const int PRIV(utf8_table2)[];
2632 extern const int PRIV(utf8_table3)[];
2633 extern const pcre_uint8 PRIV(utf8_table4)[];
2634 #endif /* COMPILE_PCRE8 */
2635
2636 extern const char PRIV(utt_names)[];
2637 extern const ucp_type_table PRIV(utt)[];
2638 extern const int PRIV(utt_size);
2639
2640 extern const pcre_uint8 PRIV(OP_lengths)[];
2641 extern const pcre_uint8 PRIV(default_tables)[];
2642
2643 extern const pcre_uint32 PRIV(hspace_list)[];
2644 extern const pcre_uint32 PRIV(vspace_list)[];
2645
2646
2647 /* Internal shared functions. These are functions that are used by more than
2648 one of the exported public functions. They have to be "external" in the C
2649 sense, but are not part of the PCRE public API. */
2650
2651 /* String comparison functions. */
2652 #if defined COMPILE_PCRE8
2653
2654 #define STRCMP_UC_UC(str1, str2) \
2655 strcmp((char *)(str1), (char *)(str2))
2656 #define STRCMP_UC_C8(str1, str2) \
2657 strcmp((char *)(str1), (str2))
2658 #define STRNCMP_UC_UC(str1, str2, num) \
2659 strncmp((char *)(str1), (char *)(str2), (num))
2660 #define STRNCMP_UC_C8(str1, str2, num) \
2661 strncmp((char *)(str1), (str2), (num))
2662 #define STRLEN_UC(str) strlen((const char *)str)
2663
2664 #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2665
2666 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2667 const pcre_uchar *);
2668 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2669 const char *);
2670 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2671 const pcre_uchar *, unsigned int num);
2672 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2673 const char *, unsigned int num);
2674 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2675
2676 #define STRCMP_UC_UC(str1, str2) \
2677 PRIV(strcmp_uc_uc)((str1), (str2))
2678 #define STRCMP_UC_C8(str1, str2) \
2679 PRIV(strcmp_uc_c8)((str1), (str2))
2680 #define STRNCMP_UC_UC(str1, str2, num) \
2681 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2682 #define STRNCMP_UC_C8(str1, str2, num) \
2683 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2684 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2685
2686 #endif /* COMPILE_PCRE[8|16|32] */
2687
2688 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
2689
2690 #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
2691 #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
2692
2693 #elif defined COMPILE_PCRE32
2694
2695 extern int PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
2696 const pcre_uchar *);
2697 extern int PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
2698 const char *);
2699
2700 #define STRCMP_UC_UC_TEST(str1, str2) \
2701 (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
2702 #define STRCMP_UC_C8_TEST(str1, str2) \
2703 (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
2704
2705 #endif /* COMPILE_PCRE[8|16|32] */
2706
2707 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2708 extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2709 int *, BOOL);
2710 extern unsigned int PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2711 extern int PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2712 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2713 int *, BOOL);
2714 extern BOOL PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
2715
2716 #ifdef SUPPORT_JIT
2717 extern void PRIV(jit_compile)(const REAL_PCRE *,
2718 PUBL(extra) *, int);
2719 extern int PRIV(jit_exec)(const PUBL(extra) *,
2720 const pcre_uchar *, int, int, int, int *, int);
2721 extern void PRIV(jit_free)(void *);
2722 extern int PRIV(jit_get_size)(void *);
2723 extern const char* PRIV(jit_get_target)(void);
2724 #endif
2725
2726 /* Unicode character database (UCD) */
2727
2728 typedef struct {
2729 pcre_uint8 script; /* ucp_Arabic, etc. */
2730 pcre_uint8 chartype; /* ucp_Cc, etc. (general categories) */
2731 pcre_uint8 gbprop; /* ucp_gbControl, etc. (grapheme break property) */
2732 pcre_uint8 caseset; /* offset to multichar other cases or zero */
2733 pcre_int32 other_case; /* offset to other case, or zero if none */
2734 } ucd_record;
2735
2736 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2737 extern const ucd_record PRIV(ucd_records)[];
2738 extern const pcre_uint8 PRIV(ucd_stage1)[];
2739 extern const pcre_uint16 PRIV(ucd_stage2)[];
2740 extern const pcre_uint32 PRIV(ucp_gentype)[];
2741 extern const pcre_uint32 PRIV(ucp_gbtable)[];
2742 #ifdef SUPPORT_JIT
2743 extern const int PRIV(ucp_typerange)[];
2744 #endif
2745
2746 #ifdef SUPPORT_UCP
2747 /* UCD access macros */
2748
2749 #define UCD_BLOCK_SIZE 128
2750 #define GET_UCD(ch) (PRIV(ucd_records) + \
2751 PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
2752 UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
2753
2754 #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2755 #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2756 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2757 #define UCD_GRAPHBREAK(ch) GET_UCD(ch)->gbprop
2758 #define UCD_CASESET(ch) GET_UCD(ch)->caseset
2759 #define UCD_OTHERCASE(ch) ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
2760
2761 #endif /* SUPPORT_UCP */
2762
2763 #endif
2764
2765 /* End of pcre_internal.h */

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