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Revision 1045 - (show annotations)
Sun Sep 23 16:50:00 2012 UTC (7 years, 1 month ago) by ph10
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Update character class handling to use new character case information; rework 
\h, \H, \v, and \V to use the same apparatus with centrally defined lists.
1 /*************************************************
2 * Perl-Compatible Regular Expressions *
3 *************************************************/
4
5
6 /* PCRE is a library of functions to support regular expressions whose syntax
7 and semantics are as close as possible to those of the Perl 5 language.
8
9 Written by Philip Hazel
10 Copyright (c) 1997-2012 University of Cambridge
11
12 -----------------------------------------------------------------------------
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions are met:
15
16 * Redistributions of source code must retain the above copyright notice,
17 this list of conditions and the following disclaimer.
18
19 * Redistributions in binary form must reproduce the above copyright
20 notice, this list of conditions and the following disclaimer in the
21 documentation and/or other materials provided with the distribution.
22
23 * Neither the name of the University of Cambridge nor the names of its
24 contributors may be used to endorse or promote products derived from
25 this software without specific prior written permission.
26
27 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
28 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 POSSIBILITY OF SUCH DAMAGE.
38 -----------------------------------------------------------------------------
39 */
40
41 /* This header contains definitions that are shared between the different
42 modules, but which are not relevant to the exported API. This includes some
43 functions whose names all begin with "_pcre_" or "_pcre16_" depending on
44 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 #ifndef COMPILE_PCRE16
57 #define COMPILE_PCRE8
58 #endif
59
60 /* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
61 "configure" script ensures this, but not everybody uses "configure". */
62
63 #if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
64 #define SUPPORT_UTF 1
65 #endif
66
67 /* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
68 reasons with existing code. */
69
70 #if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
71 #define SUPPORT_UTF 1
72 #endif
73
74 /* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
75 Until then we define it if SUPPORT_UTF is defined. */
76
77 #if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
78 #define SUPPORT_UTF8 1
79 #endif
80
81 /* We do not support both EBCDIC and UTF-8/16 at the same time. The "configure"
82 script prevents both being selected, but not everybody uses "configure". */
83
84 #if defined EBCDIC && defined SUPPORT_UTF
85 #error The use of both EBCDIC and SUPPORT_UTF8/16 is not supported.
86 #endif
87
88 /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
89 inline, and there are *still* stupid compilers about that don't like indented
90 pre-processor statements, or at least there were when I first wrote this. After
91 all, it had only been about 10 years then...
92
93 It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
94 be absolutely sure we get our version. */
95
96 #undef DPRINTF
97 #ifdef PCRE_DEBUG
98 #define DPRINTF(p) printf p
99 #else
100 #define DPRINTF(p) /* Nothing */
101 #endif
102
103
104 /* Standard C headers plus the external interface definition. The only time
105 setjmp and stdarg are used is when NO_RECURSE is set. */
106
107 #include <ctype.h>
108 #include <limits.h>
109 #include <stddef.h>
110 #include <stdio.h>
111 #include <stdlib.h>
112 #include <string.h>
113
114 /* When compiling a DLL for Windows, the exported symbols have to be declared
115 using some MS magic. I found some useful information on this web page:
116 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
117 information there, using __declspec(dllexport) without "extern" we have a
118 definition; with "extern" we have a declaration. The settings here override the
119 setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
120 which is all that is needed for applications (they just import the symbols). We
121 use:
122
123 PCRE_EXP_DECL for declarations
124 PCRE_EXP_DEFN for definitions of exported functions
125 PCRE_EXP_DATA_DEFN for definitions of exported variables
126
127 The reason for the two DEFN macros is that in non-Windows environments, one
128 does not want to have "extern" before variable definitions because it leads to
129 compiler warnings. So we distinguish between functions and variables. In
130 Windows, the two should always be the same.
131
132 The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
133 which is an application, but needs to import this file in order to "peek" at
134 internals, can #include pcre.h first to get an application's-eye view.
135
136 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
137 special-purpose environments) might want to stick other stuff in front of
138 exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
139 PCRE_EXP_DATA_DEFN only if they are not already set. */
140
141 #ifndef PCRE_EXP_DECL
142 # ifdef _WIN32
143 # ifndef PCRE_STATIC
144 # define PCRE_EXP_DECL extern __declspec(dllexport)
145 # define PCRE_EXP_DEFN __declspec(dllexport)
146 # define PCRE_EXP_DATA_DEFN __declspec(dllexport)
147 # else
148 # define PCRE_EXP_DECL extern
149 # define PCRE_EXP_DEFN
150 # define PCRE_EXP_DATA_DEFN
151 # endif
152 # else
153 # ifdef __cplusplus
154 # define PCRE_EXP_DECL extern "C"
155 # else
156 # define PCRE_EXP_DECL extern
157 # endif
158 # ifndef PCRE_EXP_DEFN
159 # define PCRE_EXP_DEFN PCRE_EXP_DECL
160 # endif
161 # ifndef PCRE_EXP_DATA_DEFN
162 # define PCRE_EXP_DATA_DEFN
163 # endif
164 # endif
165 #endif
166
167 /* When compiling with the MSVC compiler, it is sometimes necessary to include
168 a "calling convention" before exported function names. (This is secondhand
169 information; I know nothing about MSVC myself). For example, something like
170
171 void __cdecl function(....)
172
173 might be needed. In order so make this easy, all the exported functions have
174 PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
175 set, we ensure here that it has no effect. */
176
177 #ifndef PCRE_CALL_CONVENTION
178 #define PCRE_CALL_CONVENTION
179 #endif
180
181 /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
182 cannot determine these outside the compilation (e.g. by running a program as
183 part of "configure") because PCRE is often cross-compiled for use on other
184 systems. Instead we make use of the maximum sizes that are available at
185 preprocessor time in standard C environments. */
186
187 typedef unsigned char pcre_uint8;
188
189 #if USHRT_MAX == 65535
190 typedef unsigned short pcre_uint16;
191 typedef short pcre_int16;
192 #elif UINT_MAX == 65535
193 typedef unsigned int pcre_uint16;
194 typedef int pcre_int16;
195 #else
196 #error Cannot determine a type for 16-bit unsigned integers
197 #endif
198
199 #if UINT_MAX == 4294967295
200 typedef unsigned int pcre_uint32;
201 typedef int pcre_int32;
202 #elif ULONG_MAX == 4294967295
203 typedef unsigned long int pcre_uint32;
204 typedef long int pcre_int32;
205 #else
206 #error Cannot determine a type for 32-bit unsigned integers
207 #endif
208
209 /* When checking for integer overflow in pcre_compile(), we need to handle
210 large integers. If a 64-bit integer type is available, we can use that.
211 Otherwise we have to cast to double, which of course requires floating point
212 arithmetic. Handle this by defining a macro for the appropriate type. If
213 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
214 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
215 by "configure". */
216
217 #if HAVE_STDINT_H
218 #include <stdint.h>
219 #elif HAVE_INTTYPES_H
220 #include <inttypes.h>
221 #endif
222
223 #if defined INT64_MAX || defined int64_t
224 #define INT64_OR_DOUBLE int64_t
225 #else
226 #define INT64_OR_DOUBLE double
227 #endif
228
229 /* All character handling must be done as unsigned characters. Otherwise there
230 are problems with top-bit-set characters and functions such as isspace().
231 However, we leave the interface to the outside world as char * or short *,
232 because that should make things easier for callers. This character type is
233 called pcre_uchar.
234
235 The IN_UCHARS macro multiply its argument with the byte size of the current
236 pcre_uchar type. Useful for memcpy and such operations, whose require the
237 byte size of their input/output buffers.
238
239 The MAX_255 macro checks whether its pcre_uchar input is less than 256.
240
241 The TABLE_GET macro is designed for accessing elements of tables whose contain
242 exactly 256 items. When the character is able to contain more than 256
243 items, some check is needed before accessing these tables.
244 */
245
246 #ifdef COMPILE_PCRE8
247
248 typedef unsigned char pcre_uchar;
249 #define IN_UCHARS(x) (x)
250 #define MAX_255(c) 1
251 #define TABLE_GET(c, table, default) ((table)[c])
252
253 #else
254
255 #ifdef COMPILE_PCRE16
256 #if USHRT_MAX != 65535
257 /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
258 pcre.h(.in) and disable (comment out) this message. */
259 #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
260 #endif
261
262 typedef pcre_uint16 pcre_uchar;
263 #define IN_UCHARS(x) ((x) << 1)
264 #define MAX_255(c) ((c) <= 255u)
265 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
266
267 #else
268 #error Unsupported compiling mode
269 #endif /* COMPILE_PCRE16 */
270
271 #endif /* COMPILE_PCRE8 */
272
273 /* This is an unsigned int value that no character can ever have. UTF-8
274 characters only go up to 0x7fffffff (though Unicode doesn't go beyond
275 0x0010ffff). */
276
277 #define NOTACHAR 0xffffffff
278
279 /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
280 "any" and "anycrlf" at present). The following macros are used to package up
281 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
282 modules to indicate in which datablock the parameters exist, and what the
283 start/end of string field names are. */
284
285 #define NLTYPE_FIXED 0 /* Newline is a fixed length string */
286 #define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
287 #define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
288
289 /* This macro checks for a newline at the given position */
290
291 #define IS_NEWLINE(p) \
292 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
293 ((p) < NLBLOCK->PSEND && \
294 PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
295 &(NLBLOCK->nllen), utf)) \
296 : \
297 ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
298 (p)[0] == NLBLOCK->nl[0] && \
299 (NLBLOCK->nllen == 1 || (p)[1] == NLBLOCK->nl[1]) \
300 ) \
301 )
302
303 /* This macro checks for a newline immediately preceding the given position */
304
305 #define WAS_NEWLINE(p) \
306 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
307 ((p) > NLBLOCK->PSSTART && \
308 PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
309 &(NLBLOCK->nllen), utf)) \
310 : \
311 ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
312 (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
313 (NLBLOCK->nllen == 1 || (p)[-NLBLOCK->nllen+1] == NLBLOCK->nl[1]) \
314 ) \
315 )
316
317 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
318 with a custom type. This makes it possible, for example, to allow pcre_exec()
319 to process subject strings that are discontinuous by using a smart pointer
320 class. It must always be possible to inspect all of the subject string in
321 pcre_exec() because of the way it backtracks. Two macros are required in the
322 normal case, for sign-unspecified and unsigned char pointers. The former is
323 used for the external interface and appears in pcre.h, which is why its name
324 must begin with PCRE_. */
325
326 #ifdef CUSTOM_SUBJECT_PTR
327 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
328 #else
329 #define PCRE_PUCHAR const pcre_uchar *
330 #endif
331
332 /* Include the public PCRE header and the definitions of UCP character property
333 values. */
334
335 #include "pcre.h"
336 #include "ucp.h"
337
338 /* When compiling for use with the Virtual Pascal compiler, these functions
339 need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
340 option on the command line. */
341
342 #ifdef VPCOMPAT
343 #define strlen(s) _strlen(s)
344 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
345 #define memcmp(s,c,n) _memcmp(s,c,n)
346 #define memcpy(d,s,n) _memcpy(d,s,n)
347 #define memmove(d,s,n) _memmove(d,s,n)
348 #define memset(s,c,n) _memset(s,c,n)
349 #else /* VPCOMPAT */
350
351 /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
352 define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
353 is set. Otherwise, include an emulating function for those systems that have
354 neither (there some non-Unix environments where this is the case). */
355
356 #ifndef HAVE_MEMMOVE
357 #undef memmove /* some systems may have a macro */
358 #ifdef HAVE_BCOPY
359 #define memmove(a, b, c) bcopy(b, a, c)
360 #else /* HAVE_BCOPY */
361 static void *
362 pcre_memmove(void *d, const void *s, size_t n)
363 {
364 size_t i;
365 unsigned char *dest = (unsigned char *)d;
366 const unsigned char *src = (const unsigned char *)s;
367 if (dest > src)
368 {
369 dest += n;
370 src += n;
371 for (i = 0; i < n; ++i) *(--dest) = *(--src);
372 return (void *)dest;
373 }
374 else
375 {
376 for (i = 0; i < n; ++i) *dest++ = *src++;
377 return (void *)(dest - n);
378 }
379 }
380 #define memmove(a, b, c) pcre_memmove(a, b, c)
381 #endif /* not HAVE_BCOPY */
382 #endif /* not HAVE_MEMMOVE */
383 #endif /* not VPCOMPAT */
384
385
386 /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
387 in big-endian order) by default. These are used, for example, to link from the
388 start of a subpattern to its alternatives and its end. The use of 2 bytes per
389 offset limits the size of the compiled regex to around 64K, which is big enough
390 for almost everybody. However, I received a request for an even bigger limit.
391 For this reason, and also to make the code easier to maintain, the storing and
392 loading of offsets from the byte string is now handled by the macros that are
393 defined here.
394
395 The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
396 the config.h file, but can be overridden by using -D on the command line. This
397 is automated on Unix systems via the "configure" command. */
398
399 #ifdef COMPILE_PCRE8
400
401 #if LINK_SIZE == 2
402
403 #define PUT(a,n,d) \
404 (a[n] = (d) >> 8), \
405 (a[(n)+1] = (d) & 255)
406
407 #define GET(a,n) \
408 (((a)[n] << 8) | (a)[(n)+1])
409
410 #define MAX_PATTERN_SIZE (1 << 16)
411
412
413 #elif LINK_SIZE == 3
414
415 #define PUT(a,n,d) \
416 (a[n] = (d) >> 16), \
417 (a[(n)+1] = (d) >> 8), \
418 (a[(n)+2] = (d) & 255)
419
420 #define GET(a,n) \
421 (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
422
423 #define MAX_PATTERN_SIZE (1 << 24)
424
425
426 #elif LINK_SIZE == 4
427
428 #define PUT(a,n,d) \
429 (a[n] = (d) >> 24), \
430 (a[(n)+1] = (d) >> 16), \
431 (a[(n)+2] = (d) >> 8), \
432 (a[(n)+3] = (d) & 255)
433
434 #define GET(a,n) \
435 (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
436
437 /* Keep it positive */
438 #define MAX_PATTERN_SIZE (1 << 30)
439
440 #else
441 #error LINK_SIZE must be either 2, 3, or 4
442 #endif
443
444 #else /* COMPILE_PCRE8 */
445
446 #ifdef COMPILE_PCRE16
447
448 #if LINK_SIZE == 2
449
450 #undef LINK_SIZE
451 #define LINK_SIZE 1
452
453 #define PUT(a,n,d) \
454 (a[n] = (d))
455
456 #define GET(a,n) \
457 (a[n])
458
459 #define MAX_PATTERN_SIZE (1 << 16)
460
461 #elif LINK_SIZE == 3 || LINK_SIZE == 4
462
463 #undef LINK_SIZE
464 #define LINK_SIZE 2
465
466 #define PUT(a,n,d) \
467 (a[n] = (d) >> 16), \
468 (a[(n)+1] = (d) & 65535)
469
470 #define GET(a,n) \
471 (((a)[n] << 16) | (a)[(n)+1])
472
473 /* Keep it positive */
474 #define MAX_PATTERN_SIZE (1 << 30)
475
476 #else
477 #error LINK_SIZE must be either 2, 3, or 4
478 #endif
479
480 #else
481 #error Unsupported compiling mode
482 #endif /* COMPILE_PCRE16 */
483
484 #endif /* COMPILE_PCRE8 */
485
486 /* Convenience macro defined in terms of the others */
487
488 #define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
489
490
491 /* PCRE uses some other 2-byte quantities that do not change when the size of
492 offsets changes. There are used for repeat counts and for other things such as
493 capturing parenthesis numbers in back references. */
494
495 #ifdef COMPILE_PCRE8
496
497 #define IMM2_SIZE 2
498
499 #define PUT2(a,n,d) \
500 a[n] = (d) >> 8; \
501 a[(n)+1] = (d) & 255
502
503 #define GET2(a,n) \
504 (((a)[n] << 8) | (a)[(n)+1])
505
506 #else /* COMPILE_PCRE8 */
507
508 #ifdef COMPILE_PCRE16
509
510 #define IMM2_SIZE 1
511
512 #define PUT2(a,n,d) \
513 a[n] = d
514
515 #define GET2(a,n) \
516 a[n]
517
518 #else
519 #error Unsupported compiling mode
520 #endif /* COMPILE_PCRE16 */
521
522 #endif /* COMPILE_PCRE8 */
523
524 #define PUT2INC(a,n,d) PUT2(a,n,d), a += IMM2_SIZE
525
526 /* The maximum length of a MARK name is currently one data unit; it may be
527 changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
528
529 #define MAX_MARK ((1 << (sizeof(pcre_uchar)*8)) - 1)
530
531 /* When UTF encoding is being used, a character is no longer just a single
532 byte. The macros for character handling generate simple sequences when used in
533 character-mode, and more complicated ones for UTF characters. GETCHARLENTEST
534 and other macros are not used when UTF is not supported, so they are not
535 defined. To make sure they can never even appear when UTF support is omitted,
536 we don't even define them. */
537
538 #ifndef SUPPORT_UTF
539
540 /* #define MAX_VALUE_FOR_SINGLE_CHAR */
541 /* #define HAS_EXTRALEN(c) */
542 /* #define GET_EXTRALEN(c) */
543 /* #define NOT_FIRSTCHAR(c) */
544 #define GETCHAR(c, eptr) c = *eptr;
545 #define GETCHARTEST(c, eptr) c = *eptr;
546 #define GETCHARINC(c, eptr) c = *eptr++;
547 #define GETCHARINCTEST(c, eptr) c = *eptr++;
548 #define GETCHARLEN(c, eptr, len) c = *eptr;
549 /* #define GETCHARLENTEST(c, eptr, len) */
550 /* #define BACKCHAR(eptr) */
551 /* #define FORWARDCHAR(eptr) */
552 /* #define ACROSSCHAR(condition, eptr, action) */
553
554 #else /* SUPPORT_UTF */
555
556 #ifdef COMPILE_PCRE8
557
558 /* These macros were originally written in the form of loops that used data
559 from the tables whose names start with PRIV(utf8_table). They were rewritten by
560 a user so as not to use loops, because in some environments this gives a
561 significant performance advantage, and it seems never to do any harm. */
562
563 /* Tells the biggest code point which can be encoded as a single character. */
564
565 #define MAX_VALUE_FOR_SINGLE_CHAR 127
566
567 /* Tests whether the code point needs extra characters to decode. */
568
569 #define HAS_EXTRALEN(c) ((c) >= 0xc0)
570
571 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
572 Otherwise it has an undefined behaviour. */
573
574 #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
575
576 /* Returns TRUE, if the given character is not the first character
577 of a UTF sequence. */
578
579 #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
580
581 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
582 advancing the pointer. */
583
584 #define GETUTF8(c, eptr) \
585 { \
586 if ((c & 0x20) == 0) \
587 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
588 else if ((c & 0x10) == 0) \
589 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
590 else if ((c & 0x08) == 0) \
591 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
592 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
593 else if ((c & 0x04) == 0) \
594 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
595 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
596 (eptr[4] & 0x3f); \
597 else \
598 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
599 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
600 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
601 }
602
603 /* Get the next UTF-8 character, not advancing the pointer. This is called when
604 we know we are in UTF-8 mode. */
605
606 #define GETCHAR(c, eptr) \
607 c = *eptr; \
608 if (c >= 0xc0) GETUTF8(c, eptr);
609
610 /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
611 pointer. */
612
613 #define GETCHARTEST(c, eptr) \
614 c = *eptr; \
615 if (utf && c >= 0xc0) GETUTF8(c, eptr);
616
617 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
618 the pointer. */
619
620 #define GETUTF8INC(c, eptr) \
621 { \
622 if ((c & 0x20) == 0) \
623 c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
624 else if ((c & 0x10) == 0) \
625 { \
626 c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
627 eptr += 2; \
628 } \
629 else if ((c & 0x08) == 0) \
630 { \
631 c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
632 ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
633 eptr += 3; \
634 } \
635 else if ((c & 0x04) == 0) \
636 { \
637 c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
638 ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
639 (eptr[3] & 0x3f); \
640 eptr += 4; \
641 } \
642 else \
643 { \
644 c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
645 ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
646 ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
647 eptr += 5; \
648 } \
649 }
650
651 /* Get the next UTF-8 character, advancing the pointer. This is called when we
652 know we are in UTF-8 mode. */
653
654 #define GETCHARINC(c, eptr) \
655 c = *eptr++; \
656 if (c >= 0xc0) GETUTF8INC(c, eptr);
657
658 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
659 This is called when we don't know if we are in UTF-8 mode. */
660
661 #define GETCHARINCTEST(c, eptr) \
662 c = *eptr++; \
663 if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
664
665 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
666 advancing the pointer, incrementing the length. */
667
668 #define GETUTF8LEN(c, eptr, len) \
669 { \
670 if ((c & 0x20) == 0) \
671 { \
672 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
673 len++; \
674 } \
675 else if ((c & 0x10) == 0) \
676 { \
677 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
678 len += 2; \
679 } \
680 else if ((c & 0x08) == 0) \
681 {\
682 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
683 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
684 len += 3; \
685 } \
686 else if ((c & 0x04) == 0) \
687 { \
688 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
689 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
690 (eptr[4] & 0x3f); \
691 len += 4; \
692 } \
693 else \
694 {\
695 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
696 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
697 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
698 len += 5; \
699 } \
700 }
701
702 /* Get the next UTF-8 character, not advancing the pointer, incrementing length
703 if there are extra bytes. This is called when we know we are in UTF-8 mode. */
704
705 #define GETCHARLEN(c, eptr, len) \
706 c = *eptr; \
707 if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
708
709 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
710 pointer, incrementing length if there are extra bytes. This is called when we
711 do not know if we are in UTF-8 mode. */
712
713 #define GETCHARLENTEST(c, eptr, len) \
714 c = *eptr; \
715 if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
716
717 /* If the pointer is not at the start of a character, move it back until
718 it is. This is called only in UTF-8 mode - we don't put a test within the macro
719 because almost all calls are already within a block of UTF-8 only code. */
720
721 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
722
723 /* Same as above, just in the other direction. */
724 #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
725
726 /* Same as above, but it allows a fully customizable form. */
727 #define ACROSSCHAR(condition, eptr, action) \
728 while((condition) && ((eptr) & 0xc0) == 0x80) action
729
730 #else /* COMPILE_PCRE8 */
731
732 #ifdef COMPILE_PCRE16
733
734 /* Tells the biggest code point which can be encoded as a single character. */
735
736 #define MAX_VALUE_FOR_SINGLE_CHAR 65535
737
738 /* Tests whether the code point needs extra characters to decode. */
739
740 #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
741
742 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
743 Otherwise it has an undefined behaviour. */
744
745 #define GET_EXTRALEN(c) 1
746
747 /* Returns TRUE, if the given character is not the first character
748 of a UTF sequence. */
749
750 #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
751
752 /* Base macro to pick up the low surrogate of a UTF-16 character, not
753 advancing the pointer. */
754
755 #define GETUTF16(c, eptr) \
756 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
757
758 /* Get the next UTF-16 character, not advancing the pointer. This is called when
759 we know we are in UTF-16 mode. */
760
761 #define GETCHAR(c, eptr) \
762 c = *eptr; \
763 if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
764
765 /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
766 pointer. */
767
768 #define GETCHARTEST(c, eptr) \
769 c = *eptr; \
770 if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
771
772 /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
773 the pointer. */
774
775 #define GETUTF16INC(c, eptr) \
776 { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
777
778 /* Get the next UTF-16 character, advancing the pointer. This is called when we
779 know we are in UTF-16 mode. */
780
781 #define GETCHARINC(c, eptr) \
782 c = *eptr++; \
783 if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
784
785 /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
786 This is called when we don't know if we are in UTF-16 mode. */
787
788 #define GETCHARINCTEST(c, eptr) \
789 c = *eptr++; \
790 if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
791
792 /* Base macro to pick up the low surrogate of a UTF-16 character, not
793 advancing the pointer, incrementing the length. */
794
795 #define GETUTF16LEN(c, eptr, len) \
796 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
797
798 /* Get the next UTF-16 character, not advancing the pointer, incrementing
799 length if there is a low surrogate. This is called when we know we are in
800 UTF-16 mode. */
801
802 #define GETCHARLEN(c, eptr, len) \
803 c = *eptr; \
804 if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
805
806 /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
807 pointer, incrementing length if there is a low surrogate. This is called when
808 we do not know if we are in UTF-16 mode. */
809
810 #define GETCHARLENTEST(c, eptr, len) \
811 c = *eptr; \
812 if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
813
814 /* If the pointer is not at the start of a character, move it back until
815 it is. This is called only in UTF-16 mode - we don't put a test within the
816 macro because almost all calls are already within a block of UTF-16 only
817 code. */
818
819 #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
820
821 /* Same as above, just in the other direction. */
822 #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
823
824 /* Same as above, but it allows a fully customizable form. */
825 #define ACROSSCHAR(condition, eptr, action) \
826 if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
827
828 #endif
829
830 #endif /* COMPILE_PCRE8 */
831
832 #endif /* SUPPORT_UTF */
833
834
835 /* Tests for Unicode horizontal and vertical whitespace characters must check a
836 number of different values. Using a switch statement for this generates the
837 fastest code (no loop, no memory access), and there are several places in the
838 interpreter code where this happens. In order to ensure that all the case lists
839 remain in step, we use macros so that there is only one place where the lists
840 are defined.
841
842 These values are also required as lists in pcre_compile.c when processing \h,
843 \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
844 macros that define the values are here so that all the definitions are
845 together. The lists must be in ascending character order, terminated by
846 NOTACHAR (which is 0xffffffff).
847
848 Any changes should ensure that the various macros are kept in step with each
849 other. NOTE: The values also appear in pcre_jit_compile.c. */
850
851 /* ------ ASCII/Unicode environments ------ */
852
853 #ifndef EBCDIC
854
855 #define HSPACE_LIST \
856 CHAR_HT, CHAR_SPACE, 0xa0, \
857 0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
858 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
859 NOTACHAR
860
861 #define HSPACE_MULTIBYTE_CASES \
862 case 0x1680: /* OGHAM SPACE MARK */ \
863 case 0x180e: /* MONGOLIAN VOWEL SEPARATOR */ \
864 case 0x2000: /* EN QUAD */ \
865 case 0x2001: /* EM QUAD */ \
866 case 0x2002: /* EN SPACE */ \
867 case 0x2003: /* EM SPACE */ \
868 case 0x2004: /* THREE-PER-EM SPACE */ \
869 case 0x2005: /* FOUR-PER-EM SPACE */ \
870 case 0x2006: /* SIX-PER-EM SPACE */ \
871 case 0x2007: /* FIGURE SPACE */ \
872 case 0x2008: /* PUNCTUATION SPACE */ \
873 case 0x2009: /* THIN SPACE */ \
874 case 0x200A: /* HAIR SPACE */ \
875 case 0x202f: /* NARROW NO-BREAK SPACE */ \
876 case 0x205f: /* MEDIUM MATHEMATICAL SPACE */ \
877 case 0x3000 /* IDEOGRAPHIC SPACE */
878
879 #define HSPACE_BYTE_CASES \
880 case CHAR_HT: \
881 case CHAR_SPACE: \
882 case 0xa0 /* NBSP */
883
884 #define HSPACE_CASES \
885 HSPACE_BYTE_CASES: \
886 HSPACE_MULTIBYTE_CASES
887
888 #define VSPACE_LIST \
889 CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
890
891 #define VSPACE_MULTIBYTE_CASES \
892 case 0x2028: /* LINE SEPARATOR */ \
893 case 0x2029 /* PARAGRAPH SEPARATOR */
894
895 #define VSPACE_BYTE_CASES \
896 case CHAR_LF: \
897 case CHAR_VT: \
898 case CHAR_FF: \
899 case CHAR_CR: \
900 case CHAR_NEL
901
902 #define VSPACE_CASES \
903 VSPACE_BYTE_CASES: \
904 VSPACE_MULTIBYTE_CASES
905
906 /* ------ EBCDIC environments ------ */
907
908 #else
909 #define HSPACE_LIST CHAR_HT, CHAR_SPACE
910
911 #define HSPACE_BYTE_CASES \
912 case CHAR_HT: \
913 case CHAR_SPACE
914
915 #define HSPACE_CASES HSPACE_BYTE_CASES
916
917 #ifdef EBCDIC_NL25
918 #define VSPACE_LIST \
919 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
920 #else
921 #define VSPACE_LIST \
922 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
923 #endif
924
925 #define VSPACE_BYTE_CASES \
926 case CHAR_LF: \
927 case CHAR_VT: \
928 case CHAR_FF: \
929 case CHAR_CR: \
930 case CHAR_NEL
931
932 #define VSPACE_CASES VSPACE_BYTE_CASES
933 #endif /* EBCDIC */
934
935 /* ------ End of whitespace macros ------ */
936
937
938 /* In case there is no definition of offsetof() provided - though any proper
939 Standard C system should have one. */
940
941 #ifndef offsetof
942 #define offsetof(p_type,field) ((size_t)&(((p_type *)0)->field))
943 #endif
944
945
946 /* Private flags containing information about the compiled regex. They used to
947 live at the top end of the options word, but that got almost full, so now they
948 are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
949 the restrictions on partial matching have been lifted. It remains for backwards
950 compatibility. */
951
952 #ifdef COMPILE_PCRE8
953 #define PCRE_MODE 0x0001 /* compiled in 8 bit mode */
954 #endif
955 #ifdef COMPILE_PCRE16
956 #define PCRE_MODE 0x0002 /* compiled in 16 bit mode */
957 #endif
958 #define PCRE_FIRSTSET 0x0010 /* first_char is set */
959 #define PCRE_FCH_CASELESS 0x0020 /* caseless first char */
960 #define PCRE_REQCHSET 0x0040 /* req_byte is set */
961 #define PCRE_RCH_CASELESS 0x0080 /* caseless requested char */
962 #define PCRE_STARTLINE 0x0100 /* start after \n for multiline */
963 #define PCRE_NOPARTIAL 0x0200 /* can't use partial with this regex */
964 #define PCRE_JCHANGED 0x0400 /* j option used in regex */
965 #define PCRE_HASCRORLF 0x0800 /* explicit \r or \n in pattern */
966 #define PCRE_HASTHEN 0x1000 /* pattern contains (*THEN) */
967
968 /* Flags for the "extra" block produced by pcre_study(). */
969
970 #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
971 #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
972
973 /* Masks for identifying the public options that are permitted at compile
974 time, run time, or study time, respectively. */
975
976 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
977 PCRE_NEWLINE_ANYCRLF)
978
979 #define PUBLIC_COMPILE_OPTIONS \
980 (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
981 PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
982 PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
983 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
984 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
985
986 #define PUBLIC_EXEC_OPTIONS \
987 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
988 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
989 PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
990
991 #define PUBLIC_DFA_EXEC_OPTIONS \
992 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
993 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
994 PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
995 PCRE_NO_START_OPTIMIZE)
996
997 #define PUBLIC_STUDY_OPTIONS \
998 (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
999 PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1000
1001 /* Magic number to provide a small check against being handed junk. */
1002
1003 #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
1004
1005 /* This variable is used to detect a loaded regular expression
1006 in different endianness. */
1007
1008 #define REVERSED_MAGIC_NUMBER 0x45524350UL /* 'ERCP' */
1009
1010 /* Negative values for the firstchar and reqchar variables */
1011
1012 #define REQ_UNSET (-2)
1013 #define REQ_NONE (-1)
1014
1015 /* The maximum remaining length of subject we are prepared to search for a
1016 req_byte match. */
1017
1018 #define REQ_BYTE_MAX 1000
1019
1020 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1021 environments where these macros are defined elsewhere. Unfortunately, there
1022 is no way to do the same for the typedef. */
1023
1024 typedef int BOOL;
1025
1026 #ifndef FALSE
1027 #define FALSE 0
1028 #define TRUE 1
1029 #endif
1030
1031 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1032 character constants like '*' because the compiler would emit their EBCDIC code,
1033 which is different from their ASCII/UTF-8 code. Instead we define macros for
1034 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1035 is enabled. When UTF-8 support is not enabled, the definitions use character
1036 literals. Both character and string versions of each character are needed, and
1037 there are some longer strings as well.
1038
1039 This means that, on EBCDIC platforms, the PCRE library can handle either
1040 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1041 would need different lookups depending on whether PCRE_UTF8 was set or not.
1042 This would make it impossible to use characters in switch/case statements,
1043 which would reduce performance. For a theoretical use (which nobody has asked
1044 for) in a minority area (EBCDIC platforms), this is not sensible. Any
1045 application that did need both could compile two versions of the library, using
1046 macros to give the functions distinct names. */
1047
1048 #ifndef SUPPORT_UTF
1049
1050 /* UTF-8 support is not enabled; use the platform-dependent character literals
1051 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1052 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1053 characters, a common practice has been to use its NL (0x15) character as the
1054 line terminator in C-like processing environments. However, sometimes the LF
1055 (0x25) character is used instead, according to this Unicode document:
1056
1057 http://unicode.org/standard/reports/tr13/tr13-5.html
1058
1059 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1060 instead. Whichever is *not* chosen is defined as NEL.
1061
1062 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1063 same code point. */
1064
1065 #ifdef EBCDIC
1066
1067 #ifndef EBCDIC_NL25
1068 #define CHAR_NL '\x15'
1069 #define CHAR_NEL '\x25'
1070 #define STR_NL "\x15"
1071 #define STR_NEL "\x25"
1072 #else
1073 #define CHAR_NL '\x25'
1074 #define CHAR_NEL '\x15'
1075 #define STR_NL "\x25"
1076 #define STR_NEL "\x15"
1077 #endif
1078
1079 #define CHAR_LF CHAR_NL
1080 #define STR_LF STR_NL
1081
1082 #define CHAR_ESC '\047'
1083 #define CHAR_DEL '\007'
1084 #define STR_ESC "\047"
1085 #define STR_DEL "\007"
1086
1087 #else /* Not EBCDIC */
1088
1089 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1090 compatibility. NEL is the Unicode newline character; make sure it is
1091 a positive value. */
1092
1093 #define CHAR_LF '\n'
1094 #define CHAR_NL CHAR_LF
1095 #define CHAR_NEL ((unsigned char)'\x85')
1096 #define CHAR_ESC '\033'
1097 #define CHAR_DEL '\177'
1098
1099 #define STR_LF "\n"
1100 #define STR_NL STR_LF
1101 #define STR_NEL "\x85"
1102 #define STR_ESC "\033"
1103 #define STR_DEL "\177"
1104
1105 #endif /* EBCDIC */
1106
1107 /* The remaining definitions work in both environments. */
1108
1109 #define CHAR_HT '\t'
1110 #define CHAR_VT '\v'
1111 #define CHAR_FF '\f'
1112 #define CHAR_CR '\r'
1113 #define CHAR_BS '\b'
1114 #define CHAR_BEL '\a'
1115
1116 #define CHAR_SPACE ' '
1117 #define CHAR_EXCLAMATION_MARK '!'
1118 #define CHAR_QUOTATION_MARK '"'
1119 #define CHAR_NUMBER_SIGN '#'
1120 #define CHAR_DOLLAR_SIGN '$'
1121 #define CHAR_PERCENT_SIGN '%'
1122 #define CHAR_AMPERSAND '&'
1123 #define CHAR_APOSTROPHE '\''
1124 #define CHAR_LEFT_PARENTHESIS '('
1125 #define CHAR_RIGHT_PARENTHESIS ')'
1126 #define CHAR_ASTERISK '*'
1127 #define CHAR_PLUS '+'
1128 #define CHAR_COMMA ','
1129 #define CHAR_MINUS '-'
1130 #define CHAR_DOT '.'
1131 #define CHAR_SLASH '/'
1132 #define CHAR_0 '0'
1133 #define CHAR_1 '1'
1134 #define CHAR_2 '2'
1135 #define CHAR_3 '3'
1136 #define CHAR_4 '4'
1137 #define CHAR_5 '5'
1138 #define CHAR_6 '6'
1139 #define CHAR_7 '7'
1140 #define CHAR_8 '8'
1141 #define CHAR_9 '9'
1142 #define CHAR_COLON ':'
1143 #define CHAR_SEMICOLON ';'
1144 #define CHAR_LESS_THAN_SIGN '<'
1145 #define CHAR_EQUALS_SIGN '='
1146 #define CHAR_GREATER_THAN_SIGN '>'
1147 #define CHAR_QUESTION_MARK '?'
1148 #define CHAR_COMMERCIAL_AT '@'
1149 #define CHAR_A 'A'
1150 #define CHAR_B 'B'
1151 #define CHAR_C 'C'
1152 #define CHAR_D 'D'
1153 #define CHAR_E 'E'
1154 #define CHAR_F 'F'
1155 #define CHAR_G 'G'
1156 #define CHAR_H 'H'
1157 #define CHAR_I 'I'
1158 #define CHAR_J 'J'
1159 #define CHAR_K 'K'
1160 #define CHAR_L 'L'
1161 #define CHAR_M 'M'
1162 #define CHAR_N 'N'
1163 #define CHAR_O 'O'
1164 #define CHAR_P 'P'
1165 #define CHAR_Q 'Q'
1166 #define CHAR_R 'R'
1167 #define CHAR_S 'S'
1168 #define CHAR_T 'T'
1169 #define CHAR_U 'U'
1170 #define CHAR_V 'V'
1171 #define CHAR_W 'W'
1172 #define CHAR_X 'X'
1173 #define CHAR_Y 'Y'
1174 #define CHAR_Z 'Z'
1175 #define CHAR_LEFT_SQUARE_BRACKET '['
1176 #define CHAR_BACKSLASH '\\'
1177 #define CHAR_RIGHT_SQUARE_BRACKET ']'
1178 #define CHAR_CIRCUMFLEX_ACCENT '^'
1179 #define CHAR_UNDERSCORE '_'
1180 #define CHAR_GRAVE_ACCENT '`'
1181 #define CHAR_a 'a'
1182 #define CHAR_b 'b'
1183 #define CHAR_c 'c'
1184 #define CHAR_d 'd'
1185 #define CHAR_e 'e'
1186 #define CHAR_f 'f'
1187 #define CHAR_g 'g'
1188 #define CHAR_h 'h'
1189 #define CHAR_i 'i'
1190 #define CHAR_j 'j'
1191 #define CHAR_k 'k'
1192 #define CHAR_l 'l'
1193 #define CHAR_m 'm'
1194 #define CHAR_n 'n'
1195 #define CHAR_o 'o'
1196 #define CHAR_p 'p'
1197 #define CHAR_q 'q'
1198 #define CHAR_r 'r'
1199 #define CHAR_s 's'
1200 #define CHAR_t 't'
1201 #define CHAR_u 'u'
1202 #define CHAR_v 'v'
1203 #define CHAR_w 'w'
1204 #define CHAR_x 'x'
1205 #define CHAR_y 'y'
1206 #define CHAR_z 'z'
1207 #define CHAR_LEFT_CURLY_BRACKET '{'
1208 #define CHAR_VERTICAL_LINE '|'
1209 #define CHAR_RIGHT_CURLY_BRACKET '}'
1210 #define CHAR_TILDE '~'
1211
1212 #define STR_HT "\t"
1213 #define STR_VT "\v"
1214 #define STR_FF "\f"
1215 #define STR_CR "\r"
1216 #define STR_BS "\b"
1217 #define STR_BEL "\a"
1218
1219 #define STR_SPACE " "
1220 #define STR_EXCLAMATION_MARK "!"
1221 #define STR_QUOTATION_MARK "\""
1222 #define STR_NUMBER_SIGN "#"
1223 #define STR_DOLLAR_SIGN "$"
1224 #define STR_PERCENT_SIGN "%"
1225 #define STR_AMPERSAND "&"
1226 #define STR_APOSTROPHE "'"
1227 #define STR_LEFT_PARENTHESIS "("
1228 #define STR_RIGHT_PARENTHESIS ")"
1229 #define STR_ASTERISK "*"
1230 #define STR_PLUS "+"
1231 #define STR_COMMA ","
1232 #define STR_MINUS "-"
1233 #define STR_DOT "."
1234 #define STR_SLASH "/"
1235 #define STR_0 "0"
1236 #define STR_1 "1"
1237 #define STR_2 "2"
1238 #define STR_3 "3"
1239 #define STR_4 "4"
1240 #define STR_5 "5"
1241 #define STR_6 "6"
1242 #define STR_7 "7"
1243 #define STR_8 "8"
1244 #define STR_9 "9"
1245 #define STR_COLON ":"
1246 #define STR_SEMICOLON ";"
1247 #define STR_LESS_THAN_SIGN "<"
1248 #define STR_EQUALS_SIGN "="
1249 #define STR_GREATER_THAN_SIGN ">"
1250 #define STR_QUESTION_MARK "?"
1251 #define STR_COMMERCIAL_AT "@"
1252 #define STR_A "A"
1253 #define STR_B "B"
1254 #define STR_C "C"
1255 #define STR_D "D"
1256 #define STR_E "E"
1257 #define STR_F "F"
1258 #define STR_G "G"
1259 #define STR_H "H"
1260 #define STR_I "I"
1261 #define STR_J "J"
1262 #define STR_K "K"
1263 #define STR_L "L"
1264 #define STR_M "M"
1265 #define STR_N "N"
1266 #define STR_O "O"
1267 #define STR_P "P"
1268 #define STR_Q "Q"
1269 #define STR_R "R"
1270 #define STR_S "S"
1271 #define STR_T "T"
1272 #define STR_U "U"
1273 #define STR_V "V"
1274 #define STR_W "W"
1275 #define STR_X "X"
1276 #define STR_Y "Y"
1277 #define STR_Z "Z"
1278 #define STR_LEFT_SQUARE_BRACKET "["
1279 #define STR_BACKSLASH "\\"
1280 #define STR_RIGHT_SQUARE_BRACKET "]"
1281 #define STR_CIRCUMFLEX_ACCENT "^"
1282 #define STR_UNDERSCORE "_"
1283 #define STR_GRAVE_ACCENT "`"
1284 #define STR_a "a"
1285 #define STR_b "b"
1286 #define STR_c "c"
1287 #define STR_d "d"
1288 #define STR_e "e"
1289 #define STR_f "f"
1290 #define STR_g "g"
1291 #define STR_h "h"
1292 #define STR_i "i"
1293 #define STR_j "j"
1294 #define STR_k "k"
1295 #define STR_l "l"
1296 #define STR_m "m"
1297 #define STR_n "n"
1298 #define STR_o "o"
1299 #define STR_p "p"
1300 #define STR_q "q"
1301 #define STR_r "r"
1302 #define STR_s "s"
1303 #define STR_t "t"
1304 #define STR_u "u"
1305 #define STR_v "v"
1306 #define STR_w "w"
1307 #define STR_x "x"
1308 #define STR_y "y"
1309 #define STR_z "z"
1310 #define STR_LEFT_CURLY_BRACKET "{"
1311 #define STR_VERTICAL_LINE "|"
1312 #define STR_RIGHT_CURLY_BRACKET "}"
1313 #define STR_TILDE "~"
1314
1315 #define STRING_ACCEPT0 "ACCEPT\0"
1316 #define STRING_COMMIT0 "COMMIT\0"
1317 #define STRING_F0 "F\0"
1318 #define STRING_FAIL0 "FAIL\0"
1319 #define STRING_MARK0 "MARK\0"
1320 #define STRING_PRUNE0 "PRUNE\0"
1321 #define STRING_SKIP0 "SKIP\0"
1322 #define STRING_THEN "THEN"
1323
1324 #define STRING_alpha0 "alpha\0"
1325 #define STRING_lower0 "lower\0"
1326 #define STRING_upper0 "upper\0"
1327 #define STRING_alnum0 "alnum\0"
1328 #define STRING_ascii0 "ascii\0"
1329 #define STRING_blank0 "blank\0"
1330 #define STRING_cntrl0 "cntrl\0"
1331 #define STRING_digit0 "digit\0"
1332 #define STRING_graph0 "graph\0"
1333 #define STRING_print0 "print\0"
1334 #define STRING_punct0 "punct\0"
1335 #define STRING_space0 "space\0"
1336 #define STRING_word0 "word\0"
1337 #define STRING_xdigit "xdigit"
1338
1339 #define STRING_DEFINE "DEFINE"
1340
1341 #define STRING_CR_RIGHTPAR "CR)"
1342 #define STRING_LF_RIGHTPAR "LF)"
1343 #define STRING_CRLF_RIGHTPAR "CRLF)"
1344 #define STRING_ANY_RIGHTPAR "ANY)"
1345 #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1346 #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1347 #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1348 #ifdef COMPILE_PCRE8
1349 #define STRING_UTF_RIGHTPAR "UTF8)"
1350 #endif
1351 #ifdef COMPILE_PCRE16
1352 #define STRING_UTF_RIGHTPAR "UTF16)"
1353 #endif
1354 #define STRING_UCP_RIGHTPAR "UCP)"
1355 #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1356
1357 #else /* SUPPORT_UTF */
1358
1359 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1360 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1361 only. */
1362
1363 #define CHAR_HT '\011'
1364 #define CHAR_VT '\013'
1365 #define CHAR_FF '\014'
1366 #define CHAR_CR '\015'
1367 #define CHAR_LF '\012'
1368 #define CHAR_NL CHAR_LF
1369 #define CHAR_NEL ((unsigned char)'\x85')
1370 #define CHAR_BS '\010'
1371 #define CHAR_BEL '\007'
1372 #define CHAR_ESC '\033'
1373 #define CHAR_DEL '\177'
1374
1375 #define CHAR_SPACE '\040'
1376 #define CHAR_EXCLAMATION_MARK '\041'
1377 #define CHAR_QUOTATION_MARK '\042'
1378 #define CHAR_NUMBER_SIGN '\043'
1379 #define CHAR_DOLLAR_SIGN '\044'
1380 #define CHAR_PERCENT_SIGN '\045'
1381 #define CHAR_AMPERSAND '\046'
1382 #define CHAR_APOSTROPHE '\047'
1383 #define CHAR_LEFT_PARENTHESIS '\050'
1384 #define CHAR_RIGHT_PARENTHESIS '\051'
1385 #define CHAR_ASTERISK '\052'
1386 #define CHAR_PLUS '\053'
1387 #define CHAR_COMMA '\054'
1388 #define CHAR_MINUS '\055'
1389 #define CHAR_DOT '\056'
1390 #define CHAR_SLASH '\057'
1391 #define CHAR_0 '\060'
1392 #define CHAR_1 '\061'
1393 #define CHAR_2 '\062'
1394 #define CHAR_3 '\063'
1395 #define CHAR_4 '\064'
1396 #define CHAR_5 '\065'
1397 #define CHAR_6 '\066'
1398 #define CHAR_7 '\067'
1399 #define CHAR_8 '\070'
1400 #define CHAR_9 '\071'
1401 #define CHAR_COLON '\072'
1402 #define CHAR_SEMICOLON '\073'
1403 #define CHAR_LESS_THAN_SIGN '\074'
1404 #define CHAR_EQUALS_SIGN '\075'
1405 #define CHAR_GREATER_THAN_SIGN '\076'
1406 #define CHAR_QUESTION_MARK '\077'
1407 #define CHAR_COMMERCIAL_AT '\100'
1408 #define CHAR_A '\101'
1409 #define CHAR_B '\102'
1410 #define CHAR_C '\103'
1411 #define CHAR_D '\104'
1412 #define CHAR_E '\105'
1413 #define CHAR_F '\106'
1414 #define CHAR_G '\107'
1415 #define CHAR_H '\110'
1416 #define CHAR_I '\111'
1417 #define CHAR_J '\112'
1418 #define CHAR_K '\113'
1419 #define CHAR_L '\114'
1420 #define CHAR_M '\115'
1421 #define CHAR_N '\116'
1422 #define CHAR_O '\117'
1423 #define CHAR_P '\120'
1424 #define CHAR_Q '\121'
1425 #define CHAR_R '\122'
1426 #define CHAR_S '\123'
1427 #define CHAR_T '\124'
1428 #define CHAR_U '\125'
1429 #define CHAR_V '\126'
1430 #define CHAR_W '\127'
1431 #define CHAR_X '\130'
1432 #define CHAR_Y '\131'
1433 #define CHAR_Z '\132'
1434 #define CHAR_LEFT_SQUARE_BRACKET '\133'
1435 #define CHAR_BACKSLASH '\134'
1436 #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1437 #define CHAR_CIRCUMFLEX_ACCENT '\136'
1438 #define CHAR_UNDERSCORE '\137'
1439 #define CHAR_GRAVE_ACCENT '\140'
1440 #define CHAR_a '\141'
1441 #define CHAR_b '\142'
1442 #define CHAR_c '\143'
1443 #define CHAR_d '\144'
1444 #define CHAR_e '\145'
1445 #define CHAR_f '\146'
1446 #define CHAR_g '\147'
1447 #define CHAR_h '\150'
1448 #define CHAR_i '\151'
1449 #define CHAR_j '\152'
1450 #define CHAR_k '\153'
1451 #define CHAR_l '\154'
1452 #define CHAR_m '\155'
1453 #define CHAR_n '\156'
1454 #define CHAR_o '\157'
1455 #define CHAR_p '\160'
1456 #define CHAR_q '\161'
1457 #define CHAR_r '\162'
1458 #define CHAR_s '\163'
1459 #define CHAR_t '\164'
1460 #define CHAR_u '\165'
1461 #define CHAR_v '\166'
1462 #define CHAR_w '\167'
1463 #define CHAR_x '\170'
1464 #define CHAR_y '\171'
1465 #define CHAR_z '\172'
1466 #define CHAR_LEFT_CURLY_BRACKET '\173'
1467 #define CHAR_VERTICAL_LINE '\174'
1468 #define CHAR_RIGHT_CURLY_BRACKET '\175'
1469 #define CHAR_TILDE '\176'
1470
1471 #define STR_HT "\011"
1472 #define STR_VT "\013"
1473 #define STR_FF "\014"
1474 #define STR_CR "\015"
1475 #define STR_NL "\012"
1476 #define STR_BS "\010"
1477 #define STR_BEL "\007"
1478 #define STR_ESC "\033"
1479 #define STR_DEL "\177"
1480
1481 #define STR_SPACE "\040"
1482 #define STR_EXCLAMATION_MARK "\041"
1483 #define STR_QUOTATION_MARK "\042"
1484 #define STR_NUMBER_SIGN "\043"
1485 #define STR_DOLLAR_SIGN "\044"
1486 #define STR_PERCENT_SIGN "\045"
1487 #define STR_AMPERSAND "\046"
1488 #define STR_APOSTROPHE "\047"
1489 #define STR_LEFT_PARENTHESIS "\050"
1490 #define STR_RIGHT_PARENTHESIS "\051"
1491 #define STR_ASTERISK "\052"
1492 #define STR_PLUS "\053"
1493 #define STR_COMMA "\054"
1494 #define STR_MINUS "\055"
1495 #define STR_DOT "\056"
1496 #define STR_SLASH "\057"
1497 #define STR_0 "\060"
1498 #define STR_1 "\061"
1499 #define STR_2 "\062"
1500 #define STR_3 "\063"
1501 #define STR_4 "\064"
1502 #define STR_5 "\065"
1503 #define STR_6 "\066"
1504 #define STR_7 "\067"
1505 #define STR_8 "\070"
1506 #define STR_9 "\071"
1507 #define STR_COLON "\072"
1508 #define STR_SEMICOLON "\073"
1509 #define STR_LESS_THAN_SIGN "\074"
1510 #define STR_EQUALS_SIGN "\075"
1511 #define STR_GREATER_THAN_SIGN "\076"
1512 #define STR_QUESTION_MARK "\077"
1513 #define STR_COMMERCIAL_AT "\100"
1514 #define STR_A "\101"
1515 #define STR_B "\102"
1516 #define STR_C "\103"
1517 #define STR_D "\104"
1518 #define STR_E "\105"
1519 #define STR_F "\106"
1520 #define STR_G "\107"
1521 #define STR_H "\110"
1522 #define STR_I "\111"
1523 #define STR_J "\112"
1524 #define STR_K "\113"
1525 #define STR_L "\114"
1526 #define STR_M "\115"
1527 #define STR_N "\116"
1528 #define STR_O "\117"
1529 #define STR_P "\120"
1530 #define STR_Q "\121"
1531 #define STR_R "\122"
1532 #define STR_S "\123"
1533 #define STR_T "\124"
1534 #define STR_U "\125"
1535 #define STR_V "\126"
1536 #define STR_W "\127"
1537 #define STR_X "\130"
1538 #define STR_Y "\131"
1539 #define STR_Z "\132"
1540 #define STR_LEFT_SQUARE_BRACKET "\133"
1541 #define STR_BACKSLASH "\134"
1542 #define STR_RIGHT_SQUARE_BRACKET "\135"
1543 #define STR_CIRCUMFLEX_ACCENT "\136"
1544 #define STR_UNDERSCORE "\137"
1545 #define STR_GRAVE_ACCENT "\140"
1546 #define STR_a "\141"
1547 #define STR_b "\142"
1548 #define STR_c "\143"
1549 #define STR_d "\144"
1550 #define STR_e "\145"
1551 #define STR_f "\146"
1552 #define STR_g "\147"
1553 #define STR_h "\150"
1554 #define STR_i "\151"
1555 #define STR_j "\152"
1556 #define STR_k "\153"
1557 #define STR_l "\154"
1558 #define STR_m "\155"
1559 #define STR_n "\156"
1560 #define STR_o "\157"
1561 #define STR_p "\160"
1562 #define STR_q "\161"
1563 #define STR_r "\162"
1564 #define STR_s "\163"
1565 #define STR_t "\164"
1566 #define STR_u "\165"
1567 #define STR_v "\166"
1568 #define STR_w "\167"
1569 #define STR_x "\170"
1570 #define STR_y "\171"
1571 #define STR_z "\172"
1572 #define STR_LEFT_CURLY_BRACKET "\173"
1573 #define STR_VERTICAL_LINE "\174"
1574 #define STR_RIGHT_CURLY_BRACKET "\175"
1575 #define STR_TILDE "\176"
1576
1577 #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1578 #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1579 #define STRING_F0 STR_F "\0"
1580 #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1581 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1582 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1583 #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1584 #define STRING_THEN STR_T STR_H STR_E STR_N
1585
1586 #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1587 #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1588 #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1589 #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1590 #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1591 #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1592 #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1593 #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1594 #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1595 #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1596 #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1597 #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1598 #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1599 #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1600
1601 #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1602
1603 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1604 #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1605 #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1606 #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1607 #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1608 #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
1609 #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
1610 #ifdef COMPILE_PCRE8
1611 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1612 #endif
1613 #ifdef COMPILE_PCRE16
1614 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1615 #endif
1616 #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1617 #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
1618
1619 #endif /* SUPPORT_UTF */
1620
1621 /* Escape items that are just an encoding of a particular data value. */
1622
1623 #ifndef ESC_e
1624 #define ESC_e CHAR_ESC
1625 #endif
1626
1627 #ifndef ESC_f
1628 #define ESC_f CHAR_FF
1629 #endif
1630
1631 #ifndef ESC_n
1632 #define ESC_n CHAR_LF
1633 #endif
1634
1635 #ifndef ESC_r
1636 #define ESC_r CHAR_CR
1637 #endif
1638
1639 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1640 (presumably because of all the others like size_t). */
1641
1642 #ifndef ESC_tee
1643 #define ESC_tee CHAR_HT
1644 #endif
1645
1646 /* Codes for different types of Unicode property */
1647
1648 #define PT_ANY 0 /* Any property - matches all chars */
1649 #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1650 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1651 #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1652 #define PT_SC 4 /* Script (e.g. Han) */
1653 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1654 #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1655 #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1656 #define PT_WORD 8 /* Word - L plus N plus underscore */
1657
1658 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1659 contain characters with values greater than 255. */
1660
1661 #define XCL_NOT 0x01 /* Flag: this is a negative class */
1662 #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1663
1664 #define XCL_END 0 /* Marks end of individual items */
1665 #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1666 #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1667 #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1668 #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1669
1670 /* These are escaped items that aren't just an encoding of a particular data
1671 value such as \n. They must have non-zero values, as check_escape() returns
1672 their negation. Also, they must appear in the same order as in the opcode
1673 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1674 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1675 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1676 non-DOTALL mode, "." behaves like \N.
1677
1678 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1679 when PCRE_UCP is set, when replacement of \d etc by \p sequences is required.
1680 They must be contiguous, and remain in order so that the replacements can be
1681 looked up from a table.
1682
1683 The final escape must be ESC_REF as subsequent values are used for
1684 backreferences (\1, \2, \3, etc). There are two tests in the code for an escape
1685 greater than ESC_b and less than ESC_Z to detect the types that may be
1686 repeated. These are the types that consume characters. If any new escapes are
1687 put in between that don't consume a character, that code will have to change.
1688 */
1689
1690 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1691 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1692 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1693 ESC_E, ESC_Q, ESC_g, ESC_k,
1694 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu,
1695 ESC_REF };
1696
1697 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1698 OP_EOD must correspond in order to the list of escapes immediately above.
1699
1700 *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1701 that follow must also be updated to match. There are also tables called
1702 "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1703
1704 enum {
1705 OP_END, /* 0 End of pattern */
1706
1707 /* Values corresponding to backslashed metacharacters */
1708
1709 OP_SOD, /* 1 Start of data: \A */
1710 OP_SOM, /* 2 Start of match (subject + offset): \G */
1711 OP_SET_SOM, /* 3 Set start of match (\K) */
1712 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1713 OP_WORD_BOUNDARY, /* 5 \b */
1714 OP_NOT_DIGIT, /* 6 \D */
1715 OP_DIGIT, /* 7 \d */
1716 OP_NOT_WHITESPACE, /* 8 \S */
1717 OP_WHITESPACE, /* 9 \s */
1718 OP_NOT_WORDCHAR, /* 10 \W */
1719 OP_WORDCHAR, /* 11 \w */
1720
1721 OP_ANY, /* 12 Match any character except newline */
1722 OP_ALLANY, /* 13 Match any character */
1723 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1724 OP_NOTPROP, /* 15 \P (not Unicode property) */
1725 OP_PROP, /* 16 \p (Unicode property) */
1726 OP_ANYNL, /* 17 \R (any newline sequence) */
1727 OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1728 OP_HSPACE, /* 19 \h (horizontal whitespace) */
1729 OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1730 OP_VSPACE, /* 21 \v (vertical whitespace) */
1731 OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1732 OP_EODN, /* 23 End of data or \n at end of data: \Z. */
1733 OP_EOD, /* 24 End of data: \z */
1734
1735 OP_CIRC, /* 25 Start of line - not multiline */
1736 OP_CIRCM, /* 26 Start of line - multiline */
1737 OP_DOLL, /* 27 End of line - not multiline */
1738 OP_DOLLM, /* 28 End of line - multiline */
1739 OP_CHAR, /* 29 Match one character, casefully */
1740 OP_CHARI, /* 30 Match one character, caselessly */
1741 OP_NOT, /* 31 Match one character, not the given one, casefully */
1742 OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1743
1744 /* The following sets of 13 opcodes must always be kept in step because
1745 the offset from the first one is used to generate the others. */
1746
1747 /**** Single characters, caseful, must precede the caseless ones ****/
1748
1749 OP_STAR, /* 33 The maximizing and minimizing versions of */
1750 OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1751 OP_PLUS, /* 35 the minimizing one second. */
1752 OP_MINPLUS, /* 36 */
1753 OP_QUERY, /* 37 */
1754 OP_MINQUERY, /* 38 */
1755
1756 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1757 OP_MINUPTO, /* 40 */
1758 OP_EXACT, /* 41 Exactly n matches */
1759
1760 OP_POSSTAR, /* 42 Possessified star, caseful */
1761 OP_POSPLUS, /* 43 Possessified plus, caseful */
1762 OP_POSQUERY, /* 44 Posesssified query, caseful */
1763 OP_POSUPTO, /* 45 Possessified upto, caseful */
1764
1765 /**** Single characters, caseless, must follow the caseful ones */
1766
1767 OP_STARI, /* 46 */
1768 OP_MINSTARI, /* 47 */
1769 OP_PLUSI, /* 48 */
1770 OP_MINPLUSI, /* 49 */
1771 OP_QUERYI, /* 50 */
1772 OP_MINQUERYI, /* 51 */
1773
1774 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1775 OP_MINUPTOI, /* 53 */
1776 OP_EXACTI, /* 54 */
1777
1778 OP_POSSTARI, /* 55 Possessified star, caseless */
1779 OP_POSPLUSI, /* 56 Possessified plus, caseless */
1780 OP_POSQUERYI, /* 57 Posesssified query, caseless */
1781 OP_POSUPTOI, /* 58 Possessified upto, caseless */
1782
1783 /**** The negated ones must follow the non-negated ones, and match them ****/
1784 /**** Negated single character, caseful; must precede the caseless ones ****/
1785
1786 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
1787 OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
1788 OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
1789 OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
1790 OP_NOTQUERY, /* 63 */
1791 OP_NOTMINQUERY, /* 64 */
1792
1793 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
1794 OP_NOTMINUPTO, /* 66 */
1795 OP_NOTEXACT, /* 67 Exactly n matches */
1796
1797 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
1798 OP_NOTPOSPLUS, /* 69 */
1799 OP_NOTPOSQUERY, /* 70 */
1800 OP_NOTPOSUPTO, /* 71 */
1801
1802 /**** Negated single character, caseless; must follow the caseful ones ****/
1803
1804 OP_NOTSTARI, /* 72 */
1805 OP_NOTMINSTARI, /* 73 */
1806 OP_NOTPLUSI, /* 74 */
1807 OP_NOTMINPLUSI, /* 75 */
1808 OP_NOTQUERYI, /* 76 */
1809 OP_NOTMINQUERYI, /* 77 */
1810
1811 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
1812 OP_NOTMINUPTOI, /* 79 */
1813 OP_NOTEXACTI, /* 80 Exactly n matches */
1814
1815 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
1816 OP_NOTPOSPLUSI, /* 82 */
1817 OP_NOTPOSQUERYI, /* 83 */
1818 OP_NOTPOSUPTOI, /* 84 */
1819
1820 /**** Character types ****/
1821
1822 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
1823 OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
1824 OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
1825 OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
1826 OP_TYPEQUERY, /* 89 */
1827 OP_TYPEMINQUERY, /* 90 */
1828
1829 OP_TYPEUPTO, /* 91 From 0 to n matches */
1830 OP_TYPEMINUPTO, /* 92 */
1831 OP_TYPEEXACT, /* 93 Exactly n matches */
1832
1833 OP_TYPEPOSSTAR, /* 94 Possessified versions */
1834 OP_TYPEPOSPLUS, /* 95 */
1835 OP_TYPEPOSQUERY, /* 96 */
1836 OP_TYPEPOSUPTO, /* 97 */
1837
1838 /* These are used for character classes and back references; only the
1839 first six are the same as the sets above. */
1840
1841 OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
1842 OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
1843 OP_CRPLUS, /* 100 the minimizing one second. These codes must */
1844 OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
1845 OP_CRQUERY, /* 102 */
1846 OP_CRMINQUERY, /* 103 */
1847
1848 OP_CRRANGE, /* 104 These are different to the three sets above. */
1849 OP_CRMINRANGE, /* 105 */
1850
1851 /* End of quantifier opcodes */
1852
1853 OP_CLASS, /* 106 Match a character class, chars < 256 only */
1854 OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
1855 class - the difference is relevant only when a
1856 character > 255 is encountered. */
1857 OP_XCLASS, /* 108 Extended class for handling > 255 chars within the
1858 class. This does both positive and negative. */
1859 OP_REF, /* 109 Match a back reference, casefully */
1860 OP_REFI, /* 110 Match a back reference, caselessly */
1861 OP_RECURSE, /* 111 Match a numbered subpattern (possibly recursive) */
1862 OP_CALLOUT, /* 112 Call out to external function if provided */
1863
1864 OP_ALT, /* 113 Start of alternation */
1865 OP_KET, /* 114 End of group that doesn't have an unbounded repeat */
1866 OP_KETRMAX, /* 115 These two must remain together and in this */
1867 OP_KETRMIN, /* 116 order. They are for groups the repeat for ever. */
1868 OP_KETRPOS, /* 117 Possessive unlimited repeat. */
1869
1870 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
1871 asserts must remain in order. */
1872
1873 OP_REVERSE, /* 118 Move pointer back - used in lookbehind assertions */
1874 OP_ASSERT, /* 119 Positive lookahead */
1875 OP_ASSERT_NOT, /* 120 Negative lookahead */
1876 OP_ASSERTBACK, /* 121 Positive lookbehind */
1877 OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
1878
1879 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
1880 after the assertions, with ONCE first, as there's a test for >= ONCE for a
1881 subpattern that isn't an assertion. The POS versions must immediately follow
1882 the non-POS versions in each case. */
1883
1884 OP_ONCE, /* 123 Atomic group, contains captures */
1885 OP_ONCE_NC, /* 124 Atomic group containing no captures */
1886 OP_BRA, /* 125 Start of non-capturing bracket */
1887 OP_BRAPOS, /* 126 Ditto, with unlimited, possessive repeat */
1888 OP_CBRA, /* 127 Start of capturing bracket */
1889 OP_CBRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
1890 OP_COND, /* 129 Conditional group */
1891
1892 /* These five must follow the previous five, in the same order. There's a
1893 check for >= SBRA to distinguish the two sets. */
1894
1895 OP_SBRA, /* 130 Start of non-capturing bracket, check empty */
1896 OP_SBRAPOS, /* 131 Ditto, with unlimited, possessive repeat */
1897 OP_SCBRA, /* 132 Start of capturing bracket, check empty */
1898 OP_SCBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
1899 OP_SCOND, /* 134 Conditional group, check empty */
1900
1901 /* The next two pairs must (respectively) be kept together. */
1902
1903 OP_CREF, /* 135 Used to hold a capture number as condition */
1904 OP_NCREF, /* 136 Same, but generated by a name reference*/
1905 OP_RREF, /* 137 Used to hold a recursion number as condition */
1906 OP_NRREF, /* 138 Same, but generated by a name reference*/
1907 OP_DEF, /* 139 The DEFINE condition */
1908
1909 OP_BRAZERO, /* 140 These two must remain together and in this */
1910 OP_BRAMINZERO, /* 141 order. */
1911 OP_BRAPOSZERO, /* 142 */
1912
1913 /* These are backtracking control verbs */
1914
1915 OP_MARK, /* 143 always has an argument */
1916 OP_PRUNE, /* 144 */
1917 OP_PRUNE_ARG, /* 145 same, but with argument */
1918 OP_SKIP, /* 146 */
1919 OP_SKIP_ARG, /* 147 same, but with argument */
1920 OP_THEN, /* 148 */
1921 OP_THEN_ARG, /* 149 same, but with argument */
1922 OP_COMMIT, /* 150 */
1923
1924 /* These are forced failure and success verbs */
1925
1926 OP_FAIL, /* 151 */
1927 OP_ACCEPT, /* 152 */
1928 OP_ASSERT_ACCEPT, /* 153 Used inside assertions */
1929 OP_CLOSE, /* 154 Used before OP_ACCEPT to close open captures */
1930
1931 /* This is used to skip a subpattern with a {0} quantifier */
1932
1933 OP_SKIPZERO, /* 155 */
1934
1935 /* This is not an opcode, but is used to check that tables indexed by opcode
1936 are the correct length, in order to catch updating errors - there have been
1937 some in the past. */
1938
1939 OP_TABLE_LENGTH
1940 };
1941
1942 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1943 definitions that follow must also be updated to match. There are also tables
1944 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1945
1946
1947 /* This macro defines textual names for all the opcodes. These are used only
1948 for debugging, and some of them are only partial names. The macro is referenced
1949 only in pcre_printint.c, which fills out the full names in many cases (and in
1950 some cases doesn't actually use these names at all). */
1951
1952 #define OP_NAME_LIST \
1953 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
1954 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
1955 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
1956 "extuni", "\\Z", "\\z", \
1957 "^", "^", "$", "$", "char", "chari", "not", "noti", \
1958 "*", "*?", "+", "+?", "?", "??", \
1959 "{", "{", "{", \
1960 "*+","++", "?+", "{", \
1961 "*", "*?", "+", "+?", "?", "??", \
1962 "{", "{", "{", \
1963 "*+","++", "?+", "{", \
1964 "*", "*?", "+", "+?", "?", "??", \
1965 "{", "{", "{", \
1966 "*+","++", "?+", "{", \
1967 "*", "*?", "+", "+?", "?", "??", \
1968 "{", "{", "{", \
1969 "*+","++", "?+", "{", \
1970 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
1971 "*+","++", "?+", "{", \
1972 "*", "*?", "+", "+?", "?", "??", "{", "{", \
1973 "class", "nclass", "xclass", "Ref", "Refi", \
1974 "Recurse", "Callout", \
1975 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
1976 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
1977 "Once", "Once_NC", \
1978 "Bra", "BraPos", "CBra", "CBraPos", \
1979 "Cond", \
1980 "SBra", "SBraPos", "SCBra", "SCBraPos", \
1981 "SCond", \
1982 "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
1983 "Brazero", "Braminzero", "Braposzero", \
1984 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
1985 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
1986 "*ACCEPT", "*ASSERT_ACCEPT", \
1987 "Close", "Skip zero"
1988
1989
1990 /* This macro defines the length of fixed length operations in the compiled
1991 regex. The lengths are used when searching for specific things, and also in the
1992 debugging printing of a compiled regex. We use a macro so that it can be
1993 defined close to the definitions of the opcodes themselves.
1994
1995 As things have been extended, some of these are no longer fixed lenths, but are
1996 minima instead. For example, the length of a single-character repeat may vary
1997 in UTF-8 mode. The code that uses this table must know about such things. */
1998
1999 #define OP_LENGTHS \
2000 1, /* End */ \
2001 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
2002 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
2003 1, 1, 1, /* Any, AllAny, Anybyte */ \
2004 3, 3, /* \P, \p */ \
2005 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
2006 1, /* \X */ \
2007 1, 1, 1, 1, 1, 1, /* \Z, \z, ^, ^M, $, $M */ \
2008 2, /* Char - the minimum length */ \
2009 2, /* Chari - the minimum length */ \
2010 2, /* not */ \
2011 2, /* noti */ \
2012 /* Positive single-char repeats ** These are */ \
2013 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
2014 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto, minupto ** mode */ \
2015 2+IMM2_SIZE, /* exact */ \
2016 2, 2, 2, 2+IMM2_SIZE, /* *+, ++, ?+, upto+ */ \
2017 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
2018 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto I, minupto I */ \
2019 2+IMM2_SIZE, /* exact I */ \
2020 2, 2, 2, 2+IMM2_SIZE, /* *+I, ++I, ?+I, upto+I */ \
2021 /* Negative single-char repeats - only for chars < 256 */ \
2022 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
2023 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto, minupto */ \
2024 2+IMM2_SIZE, /* NOT exact */ \
2025 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *, +, ?, upto */ \
2026 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
2027 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto I, minupto I */ \
2028 2+IMM2_SIZE, /* NOT exact I */ \
2029 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *I, +I, ?I, upto I */ \
2030 /* Positive type repeats */ \
2031 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
2032 2+IMM2_SIZE, 2+IMM2_SIZE, /* Type upto, minupto */ \
2033 2+IMM2_SIZE, /* Type exact */ \
2034 2, 2, 2, 2+IMM2_SIZE, /* Possessive *+, ++, ?+, upto+ */ \
2035 /* Character class & ref repeats */ \
2036 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
2037 1+2*IMM2_SIZE, 1+2*IMM2_SIZE, /* CRRANGE, CRMINRANGE */ \
2038 1+(32/sizeof(pcre_uchar)), /* CLASS */ \
2039 1+(32/sizeof(pcre_uchar)), /* NCLASS */ \
2040 0, /* XCLASS - variable length */ \
2041 1+IMM2_SIZE, /* REF */ \
2042 1+IMM2_SIZE, /* REFI */ \
2043 1+LINK_SIZE, /* RECURSE */ \
2044 2+2*LINK_SIZE, /* CALLOUT */ \
2045 1+LINK_SIZE, /* Alt */ \
2046 1+LINK_SIZE, /* Ket */ \
2047 1+LINK_SIZE, /* KetRmax */ \
2048 1+LINK_SIZE, /* KetRmin */ \
2049 1+LINK_SIZE, /* KetRpos */ \
2050 1+LINK_SIZE, /* Reverse */ \
2051 1+LINK_SIZE, /* Assert */ \
2052 1+LINK_SIZE, /* Assert not */ \
2053 1+LINK_SIZE, /* Assert behind */ \
2054 1+LINK_SIZE, /* Assert behind not */ \
2055 1+LINK_SIZE, /* ONCE */ \
2056 1+LINK_SIZE, /* ONCE_NC */ \
2057 1+LINK_SIZE, /* BRA */ \
2058 1+LINK_SIZE, /* BRAPOS */ \
2059 1+LINK_SIZE+IMM2_SIZE, /* CBRA */ \
2060 1+LINK_SIZE+IMM2_SIZE, /* CBRAPOS */ \
2061 1+LINK_SIZE, /* COND */ \
2062 1+LINK_SIZE, /* SBRA */ \
2063 1+LINK_SIZE, /* SBRAPOS */ \
2064 1+LINK_SIZE+IMM2_SIZE, /* SCBRA */ \
2065 1+LINK_SIZE+IMM2_SIZE, /* SCBRAPOS */ \
2066 1+LINK_SIZE, /* SCOND */ \
2067 1+IMM2_SIZE, 1+IMM2_SIZE, /* CREF, NCREF */ \
2068 1+IMM2_SIZE, 1+IMM2_SIZE, /* RREF, NRREF */ \
2069 1, /* DEF */ \
2070 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
2071 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
2072 1, 3, /* SKIP, SKIP_ARG */ \
2073 1, 3, /* THEN, THEN_ARG */ \
2074 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
2075 1+IMM2_SIZE, 1 /* CLOSE, SKIPZERO */
2076
2077 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2078 condition. */
2079
2080 #define RREF_ANY 0xffff
2081
2082 /* Compile time error code numbers. They are given names so that they can more
2083 easily be tracked. When a new number is added, the table called eint in
2084 pcreposix.c must be updated. */
2085
2086 enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
2087 ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2088 ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2089 ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2090 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2091 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2092 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2093 ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERRCOUNT };
2094
2095 /* JIT compiling modes. The function list is indexed by them. */
2096 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2097 JIT_NUMBER_OF_COMPILE_MODES };
2098
2099 /* The real format of the start of the pcre block; the index of names and the
2100 code vector run on as long as necessary after the end. We store an explicit
2101 offset to the name table so that if a regex is compiled on one host, saved, and
2102 then run on another where the size of pointers is different, all might still
2103 be well. For the case of compiled-on-4 and run-on-8, we include an extra
2104 pointer that is always NULL. For future-proofing, a few dummy fields were
2105 originally included - even though you can never get this planning right - but
2106 there is only one left now.
2107
2108 NOTE NOTE NOTE:
2109 Because people can now save and re-use compiled patterns, any additions to this
2110 structure should be made at the end, and something earlier (e.g. a new
2111 flag in the options or one of the dummy fields) should indicate that the new
2112 fields are present. Currently PCRE always sets the dummy fields to zero.
2113 NOTE NOTE NOTE
2114 */
2115
2116 #ifdef COMPILE_PCRE8
2117 #define REAL_PCRE real_pcre
2118 #else
2119 #define REAL_PCRE real_pcre16
2120 #endif
2121
2122 typedef struct REAL_PCRE {
2123 pcre_uint32 magic_number;
2124 pcre_uint32 size; /* Total that was malloced */
2125 pcre_uint32 options; /* Public options */
2126 pcre_uint16 flags; /* Private flags */
2127 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2128 pcre_uint16 top_bracket; /* Highest numbered group */
2129 pcre_uint16 top_backref; /* Highest numbered back reference */
2130 pcre_uint16 first_char; /* Starting character */
2131 pcre_uint16 req_char; /* This character must be seen */
2132 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2133 pcre_uint16 name_entry_size; /* Size of any name items */
2134 pcre_uint16 name_count; /* Number of name items */
2135 pcre_uint16 ref_count; /* Reference count */
2136 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2137 const pcre_uint8 *nullpad; /* NULL padding */
2138 } REAL_PCRE;
2139
2140 /* The format of the block used to store data from pcre_study(). The same
2141 remark (see NOTE above) about extending this structure applies. */
2142
2143 typedef struct pcre_study_data {
2144 pcre_uint32 size; /* Total that was malloced */
2145 pcre_uint32 flags; /* Private flags */
2146 pcre_uint8 start_bits[32]; /* Starting char bits */
2147 pcre_uint32 minlength; /* Minimum subject length */
2148 } pcre_study_data;
2149
2150 /* Structure for building a chain of open capturing subpatterns during
2151 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2152 encountered. This is also used to identify subpatterns that contain recursive
2153 back references to themselves, so that they can be made atomic. */
2154
2155 typedef struct open_capitem {
2156 struct open_capitem *next; /* Chain link */
2157 pcre_uint16 number; /* Capture number */
2158 pcre_uint16 flag; /* Set TRUE if recursive back ref */
2159 } open_capitem;
2160
2161 /* Structure for passing "static" information around between the functions
2162 doing the compiling, so that they are thread-safe. */
2163
2164 typedef struct compile_data {
2165 const pcre_uint8 *lcc; /* Points to lower casing table */
2166 const pcre_uint8 *fcc; /* Points to case-flipping table */
2167 const pcre_uint8 *cbits; /* Points to character type table */
2168 const pcre_uint8 *ctypes; /* Points to table of type maps */
2169 const pcre_uchar *start_workspace;/* The start of working space */
2170 const pcre_uchar *start_code; /* The start of the compiled code */
2171 const pcre_uchar *start_pattern; /* The start of the pattern */
2172 const pcre_uchar *end_pattern; /* The end of the pattern */
2173 open_capitem *open_caps; /* Chain of open capture items */
2174 pcre_uchar *hwm; /* High watermark of workspace */
2175 pcre_uchar *name_table; /* The name/number table */
2176 int names_found; /* Number of entries so far */
2177 int name_entry_size; /* Size of each entry */
2178 int workspace_size; /* Size of workspace */
2179 int bracount; /* Count of capturing parens as we compile */
2180 int final_bracount; /* Saved value after first pass */
2181 int max_lookbehind; /* Maximum lookbehind (characters) */
2182 int top_backref; /* Maximum back reference */
2183 unsigned int backref_map; /* Bitmap of low back refs */
2184 int assert_depth; /* Depth of nested assertions */
2185 int external_options; /* External (initial) options */
2186 int external_flags; /* External flag bits to be set */
2187 int req_varyopt; /* "After variable item" flag for reqbyte */
2188 BOOL had_accept; /* (*ACCEPT) encountered */
2189 BOOL had_pruneorskip; /* (*PRUNE) or (*SKIP) encountered */
2190 BOOL check_lookbehind; /* Lookbehinds need later checking */
2191 int nltype; /* Newline type */
2192 int nllen; /* Newline string length */
2193 pcre_uchar nl[4]; /* Newline string when fixed length */
2194 } compile_data;
2195
2196 /* Structure for maintaining a chain of pointers to the currently incomplete
2197 branches, for testing for left recursion while compiling. */
2198
2199 typedef struct branch_chain {
2200 struct branch_chain *outer;
2201 pcre_uchar *current_branch;
2202 } branch_chain;
2203
2204 /* Structure for items in a linked list that represents an explicit recursive
2205 call within the pattern; used by pcre_exec(). */
2206
2207 typedef struct recursion_info {
2208 struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2209 int group_num; /* Number of group that was called */
2210 int *offset_save; /* Pointer to start of saved offsets */
2211 int saved_max; /* Number of saved offsets */
2212 PCRE_PUCHAR subject_position; /* Position at start of recursion */
2213 } recursion_info;
2214
2215 /* A similar structure for pcre_dfa_exec(). */
2216
2217 typedef struct dfa_recursion_info {
2218 struct dfa_recursion_info *prevrec;
2219 int group_num;
2220 PCRE_PUCHAR subject_position;
2221 } dfa_recursion_info;
2222
2223 /* Structure for building a chain of data for holding the values of the subject
2224 pointer at the start of each subpattern, so as to detect when an empty string
2225 has been matched by a subpattern - to break infinite loops; used by
2226 pcre_exec(). */
2227
2228 typedef struct eptrblock {
2229 struct eptrblock *epb_prev;
2230 PCRE_PUCHAR epb_saved_eptr;
2231 } eptrblock;
2232
2233
2234 /* Structure for passing "static" information around between the functions
2235 doing traditional NFA matching, so that they are thread-safe. */
2236
2237 typedef struct match_data {
2238 unsigned long int match_call_count; /* As it says */
2239 unsigned long int match_limit; /* As it says */
2240 unsigned long int match_limit_recursion; /* As it says */
2241 int *offset_vector; /* Offset vector */
2242 int offset_end; /* One past the end */
2243 int offset_max; /* The maximum usable for return data */
2244 int nltype; /* Newline type */
2245 int nllen; /* Newline string length */
2246 int name_count; /* Number of names in name table */
2247 int name_entry_size; /* Size of entry in names table */
2248 pcre_uchar *name_table; /* Table of names */
2249 pcre_uchar nl[4]; /* Newline string when fixed */
2250 const pcre_uint8 *lcc; /* Points to lower casing table */
2251 const pcre_uint8 *fcc; /* Points to case-flipping table */
2252 const pcre_uint8 *ctypes; /* Points to table of type maps */
2253 BOOL offset_overflow; /* Set if too many extractions */
2254 BOOL notbol; /* NOTBOL flag */
2255 BOOL noteol; /* NOTEOL flag */
2256 BOOL utf; /* UTF-8 / UTF-16 flag */
2257 BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
2258 BOOL use_ucp; /* PCRE_UCP flag */
2259 BOOL endonly; /* Dollar not before final \n */
2260 BOOL notempty; /* Empty string match not wanted */
2261 BOOL notempty_atstart; /* Empty string match at start not wanted */
2262 BOOL hitend; /* Hit the end of the subject at some point */
2263 BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
2264 BOOL hasthen; /* Pattern contains (*THEN) */
2265 BOOL ignore_skip_arg; /* For re-run when SKIP name not found */
2266 const pcre_uchar *start_code; /* For use when recursing */
2267 PCRE_PUCHAR start_subject; /* Start of the subject string */
2268 PCRE_PUCHAR end_subject; /* End of the subject string */
2269 PCRE_PUCHAR start_match_ptr; /* Start of matched string */
2270 PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
2271 PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
2272 int partial; /* PARTIAL options */
2273 int end_offset_top; /* Highwater mark at end of match */
2274 int capture_last; /* Most recent capture number */
2275 int start_offset; /* The start offset value */
2276 int match_function_type; /* Set for certain special calls of MATCH() */
2277 eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
2278 int eptrn; /* Next free eptrblock */
2279 recursion_info *recursive; /* Linked list of recursion data */
2280 void *callout_data; /* To pass back to callouts */
2281 const pcre_uchar *mark; /* Mark pointer to pass back on success */
2282 const pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2283 const pcre_uchar *once_target; /* Where to back up to for atomic groups */
2284 #ifdef NO_RECURSE
2285 void *match_frames_base; /* For remembering malloc'd frames */
2286 #endif
2287 } match_data;
2288
2289 /* A similar structure is used for the same purpose by the DFA matching
2290 functions. */
2291
2292 typedef struct dfa_match_data {
2293 const pcre_uchar *start_code; /* Start of the compiled pattern */
2294 const pcre_uchar *start_subject ; /* Start of the subject string */
2295 const pcre_uchar *end_subject; /* End of subject string */
2296 const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2297 const pcre_uint8 *tables; /* Character tables */
2298 int start_offset; /* The start offset value */
2299 int moptions; /* Match options */
2300 int poptions; /* Pattern options */
2301 int nltype; /* Newline type */
2302 int nllen; /* Newline string length */
2303 pcre_uchar nl[4]; /* Newline string when fixed */
2304 void *callout_data; /* To pass back to callouts */
2305 dfa_recursion_info *recursive; /* Linked list of recursion data */
2306 } dfa_match_data;
2307
2308 /* Bit definitions for entries in the pcre_ctypes table. */
2309
2310 #define ctype_space 0x01
2311 #define ctype_letter 0x02
2312 #define ctype_digit 0x04
2313 #define ctype_xdigit 0x08
2314 #define ctype_word 0x10 /* alphanumeric or '_' */
2315 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
2316
2317 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2318 of bits for a class map. Some classes are built by combining these tables. */
2319
2320 #define cbit_space 0 /* [:space:] or \s */
2321 #define cbit_xdigit 32 /* [:xdigit:] */
2322 #define cbit_digit 64 /* [:digit:] or \d */
2323 #define cbit_upper 96 /* [:upper:] */
2324 #define cbit_lower 128 /* [:lower:] */
2325 #define cbit_word 160 /* [:word:] or \w */
2326 #define cbit_graph 192 /* [:graph:] */
2327 #define cbit_print 224 /* [:print:] */
2328 #define cbit_punct 256 /* [:punct:] */
2329 #define cbit_cntrl 288 /* [:cntrl:] */
2330 #define cbit_length 320 /* Length of the cbits table */
2331
2332 /* Offsets of the various tables from the base tables pointer, and
2333 total length. */
2334
2335 #define lcc_offset 0
2336 #define fcc_offset 256
2337 #define cbits_offset 512
2338 #define ctypes_offset (cbits_offset + cbit_length)
2339 #define tables_length (ctypes_offset + 256)
2340
2341 /* Internal function and data prefixes. */
2342
2343 #ifdef COMPILE_PCRE8
2344 #ifndef PUBL
2345 #define PUBL(name) pcre_##name
2346 #endif
2347 #ifndef PRIV
2348 #define PRIV(name) _pcre_##name
2349 #endif
2350 #else /* COMPILE_PCRE8 */
2351 #ifdef COMPILE_PCRE16
2352 #ifndef PUBL
2353 #define PUBL(name) pcre16_##name
2354 #endif
2355 #ifndef PRIV
2356 #define PRIV(name) _pcre16_##name
2357 #endif
2358 #else
2359 #error Unsupported compiling mode
2360 #endif /* COMPILE_PCRE16 */
2361 #endif /* COMPILE_PCRE8 */
2362
2363 /* Layout of the UCP type table that translates property names into types and
2364 codes. Each entry used to point directly to a name, but to reduce the number of
2365 relocations in shared libraries, it now has an offset into a single string
2366 instead. */
2367
2368 typedef struct {
2369 pcre_uint16 name_offset;
2370 pcre_uint16 type;
2371 pcre_uint16 value;
2372 } ucp_type_table;
2373
2374
2375 /* Internal shared data tables. These are tables that are used by more than one
2376 of the exported public functions. They have to be "external" in the C sense,
2377 but are not part of the PCRE public API. The data for these tables is in the
2378 pcre_tables.c module. */
2379
2380 #ifdef COMPILE_PCRE8
2381 extern const int PRIV(utf8_table1)[];
2382 extern const int PRIV(utf8_table1_size);
2383 extern const int PRIV(utf8_table2)[];
2384 extern const int PRIV(utf8_table3)[];
2385 extern const pcre_uint8 PRIV(utf8_table4)[];
2386 #endif /* COMPILE_PCRE8 */
2387
2388 extern const char PRIV(utt_names)[];
2389 extern const ucp_type_table PRIV(utt)[];
2390 extern const int PRIV(utt_size);
2391
2392 extern const pcre_uint8 PRIV(OP_lengths)[];
2393 extern const pcre_uint8 PRIV(default_tables)[];
2394
2395 extern const pcre_uint32 PRIV(hspace_list)[];
2396 extern const pcre_uint32 PRIV(vspace_list)[];
2397
2398
2399 /* Internal shared functions. These are functions that are used by more than
2400 one of the exported public functions. They have to be "external" in the C
2401 sense, but are not part of the PCRE public API. */
2402
2403 /* String comparison functions. */
2404 #ifdef COMPILE_PCRE8
2405
2406 #define STRCMP_UC_UC(str1, str2) \
2407 strcmp((char *)(str1), (char *)(str2))
2408 #define STRCMP_UC_C8(str1, str2) \
2409 strcmp((char *)(str1), (str2))
2410 #define STRNCMP_UC_UC(str1, str2, num) \
2411 strncmp((char *)(str1), (char *)(str2), (num))
2412 #define STRNCMP_UC_C8(str1, str2, num) \
2413 strncmp((char *)(str1), (str2), (num))
2414 #define STRLEN_UC(str) strlen((const char *)str)
2415
2416 #else
2417
2418 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2419 const pcre_uchar *);
2420 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2421 const char *);
2422 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2423 const pcre_uchar *, unsigned int num);
2424 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2425 const char *, unsigned int num);
2426 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2427
2428 #define STRCMP_UC_UC(str1, str2) \
2429 PRIV(strcmp_uc_uc)((str1), (str2))
2430 #define STRCMP_UC_C8(str1, str2) \
2431 PRIV(strcmp_uc_c8)((str1), (str2))
2432 #define STRNCMP_UC_UC(str1, str2, num) \
2433 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2434 #define STRNCMP_UC_C8(str1, str2, num) \
2435 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2436 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2437
2438 #endif /* COMPILE_PCRE8 */
2439
2440 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2441 extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2442 int *, BOOL);
2443 extern int PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2444 extern int PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2445 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2446 int *, BOOL);
2447 extern BOOL PRIV(xclass)(int, const pcre_uchar *, BOOL);
2448
2449 #ifdef SUPPORT_JIT
2450 extern void PRIV(jit_compile)(const REAL_PCRE *,
2451 PUBL(extra) *, int);
2452 extern int PRIV(jit_exec)(const REAL_PCRE *, const PUBL(extra) *,
2453 const pcre_uchar *, int, int, int, int *, int);
2454 extern void PRIV(jit_free)(void *);
2455 extern int PRIV(jit_get_size)(void *);
2456 extern const char* PRIV(jit_get_target)(void);
2457 #endif
2458
2459 /* Unicode character database (UCD) */
2460
2461 typedef struct {
2462 pcre_uint8 script; /* ucp_Arabic, etc. */
2463 pcre_uint8 chartype; /* ucp_Cc, etc. (general categories) */
2464 pcre_uint8 gbprop; /* ucp_gbControl, etc. (grapheme break property) */
2465 pcre_uint8 caseset; /* offset to multichar other cases or zero */
2466 pcre_int32 other_case; /* offset to other case, or zero if none */
2467 } ucd_record;
2468
2469 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2470 extern const ucd_record PRIV(ucd_records)[];
2471 extern const pcre_uint8 PRIV(ucd_stage1)[];
2472 extern const pcre_uint16 PRIV(ucd_stage2)[];
2473 extern const int PRIV(ucp_gentype)[];
2474 extern const pcre_uint32 PRIV(ucp_gbtable)[];
2475 #ifdef SUPPORT_JIT
2476 extern const int PRIV(ucp_typerange)[];
2477 #endif
2478
2479 #ifdef SUPPORT_UCP
2480 /* UCD access macros */
2481
2482 #define UCD_BLOCK_SIZE 128
2483 #define GET_UCD(ch) (PRIV(ucd_records) + \
2484 PRIV(ucd_stage2)[PRIV(ucd_stage1)[(ch) / UCD_BLOCK_SIZE] * \
2485 UCD_BLOCK_SIZE + (ch) % UCD_BLOCK_SIZE])
2486
2487 #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2488 #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2489 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2490 #define UCD_GRAPHBREAK(ch) GET_UCD(ch)->gbprop
2491 #define UCD_CASESET(ch) GET_UCD(ch)->caseset
2492 #define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)
2493
2494 #endif /* SUPPORT_UCP */
2495
2496 #endif
2497
2498 /* End of pcre_internal.h */

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