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Revision 1187 - (show annotations)
Mon Oct 29 11:30:45 2012 UTC (6 years, 9 months ago) by zherczeg
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JIT native interface.
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_", "_pcre16_" or "_pcre32_"
44 depending on the PRIV macro. */
45
46 #ifndef PCRE_INTERNAL_H
47 #define PCRE_INTERNAL_H
48
49 /* Define PCRE_DEBUG to get debugging output on stdout. */
50
51 #if 0
52 #define PCRE_DEBUG
53 #endif
54
55 /* PCRE is compiled as an 8 bit library if it is not requested otherwise. */
56
57 #if !defined COMPILE_PCRE16 && !defined COMPILE_PCRE32
58 #define COMPILE_PCRE8
59 #endif
60
61 /* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
62 "configure" script ensures this, but not everybody uses "configure". */
63
64 #if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
65 #define SUPPORT_UTF 1
66 #endif
67
68 /* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
69 reasons with existing code. */
70
71 #if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
72 #define SUPPORT_UTF 1
73 #endif
74
75 /* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
76 Until then we define it if SUPPORT_UTF is defined. */
77
78 #if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
79 #define SUPPORT_UTF8 1
80 #endif
81
82 /* We do not support both EBCDIC and UTF-8/16/32 at the same time. The "configure"
83 script prevents both being selected, but not everybody uses "configure". */
84
85 #if defined EBCDIC && defined SUPPORT_UTF
86 #error The use of both EBCDIC and SUPPORT_UTF is not supported.
87 #endif
88
89 /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
90 inline, and there are *still* stupid compilers about that don't like indented
91 pre-processor statements, or at least there were when I first wrote this. After
92 all, it had only been about 10 years then...
93
94 It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
95 be absolutely sure we get our version. */
96
97 #undef DPRINTF
98 #ifdef PCRE_DEBUG
99 #define DPRINTF(p) printf p
100 #else
101 #define DPRINTF(p) /* Nothing */
102 #endif
103
104
105 /* Standard C headers plus the external interface definition. The only time
106 setjmp and stdarg are used is when NO_RECURSE is set. */
107
108 #include <ctype.h>
109 #include <limits.h>
110 #include <stddef.h>
111 #include <stdio.h>
112 #include <stdlib.h>
113 #include <string.h>
114
115 /* Valgrind (memcheck) support */
116
117 #ifdef SUPPORT_VALGRIND
118 #include <valgrind/memcheck.h>
119 #endif
120
121 /* When compiling a DLL for Windows, the exported symbols have to be declared
122 using some MS magic. I found some useful information on this web page:
123 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
124 information there, using __declspec(dllexport) without "extern" we have a
125 definition; with "extern" we have a declaration. The settings here override the
126 setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
127 which is all that is needed for applications (they just import the symbols). We
128 use:
129
130 PCRE_EXP_DECL for declarations
131 PCRE_EXP_DEFN for definitions of exported functions
132 PCRE_EXP_DATA_DEFN for definitions of exported variables
133
134 The reason for the two DEFN macros is that in non-Windows environments, one
135 does not want to have "extern" before variable definitions because it leads to
136 compiler warnings. So we distinguish between functions and variables. In
137 Windows, the two should always be the same.
138
139 The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
140 which is an application, but needs to import this file in order to "peek" at
141 internals, can #include pcre.h first to get an application's-eye view.
142
143 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
144 special-purpose environments) might want to stick other stuff in front of
145 exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
146 PCRE_EXP_DATA_DEFN only if they are not already set. */
147
148 #ifndef PCRE_EXP_DECL
149 # ifdef _WIN32
150 # ifndef PCRE_STATIC
151 # define PCRE_EXP_DECL extern __declspec(dllexport)
152 # define PCRE_EXP_DEFN __declspec(dllexport)
153 # define PCRE_EXP_DATA_DEFN __declspec(dllexport)
154 # else
155 # define PCRE_EXP_DECL extern
156 # define PCRE_EXP_DEFN
157 # define PCRE_EXP_DATA_DEFN
158 # endif
159 # else
160 # ifdef __cplusplus
161 # define PCRE_EXP_DECL extern "C"
162 # else
163 # define PCRE_EXP_DECL extern
164 # endif
165 # ifndef PCRE_EXP_DEFN
166 # define PCRE_EXP_DEFN PCRE_EXP_DECL
167 # endif
168 # ifndef PCRE_EXP_DATA_DEFN
169 # define PCRE_EXP_DATA_DEFN
170 # endif
171 # endif
172 #endif
173
174 /* When compiling with the MSVC compiler, it is sometimes necessary to include
175 a "calling convention" before exported function names. (This is secondhand
176 information; I know nothing about MSVC myself). For example, something like
177
178 void __cdecl function(....)
179
180 might be needed. In order so make this easy, all the exported functions have
181 PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
182 set, we ensure here that it has no effect. */
183
184 #ifndef PCRE_CALL_CONVENTION
185 #define PCRE_CALL_CONVENTION
186 #endif
187
188 /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
189 cannot determine these outside the compilation (e.g. by running a program as
190 part of "configure") because PCRE is often cross-compiled for use on other
191 systems. Instead we make use of the maximum sizes that are available at
192 preprocessor time in standard C environments. */
193
194 typedef unsigned char pcre_uint8;
195
196 #if USHRT_MAX == 65535
197 typedef unsigned short pcre_uint16;
198 typedef short pcre_int16;
199 #elif UINT_MAX == 65535
200 typedef unsigned int pcre_uint16;
201 typedef int pcre_int16;
202 #else
203 #error Cannot determine a type for 16-bit unsigned integers
204 #endif
205
206 #if UINT_MAX == 4294967295
207 typedef unsigned int pcre_uint32;
208 typedef int pcre_int32;
209 #elif ULONG_MAX == 4294967295
210 typedef unsigned long int pcre_uint32;
211 typedef long int pcre_int32;
212 #else
213 #error Cannot determine a type for 32-bit unsigned integers
214 #endif
215
216 /* When checking for integer overflow in pcre_compile(), we need to handle
217 large integers. If a 64-bit integer type is available, we can use that.
218 Otherwise we have to cast to double, which of course requires floating point
219 arithmetic. Handle this by defining a macro for the appropriate type. If
220 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
221 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
222 by "configure". */
223
224 #if defined HAVE_STDINT_H
225 #include <stdint.h>
226 #elif defined HAVE_INTTYPES_H
227 #include <inttypes.h>
228 #endif
229
230 #if defined INT64_MAX || defined int64_t
231 #define INT64_OR_DOUBLE int64_t
232 #else
233 #define INT64_OR_DOUBLE double
234 #endif
235
236 /* All character handling must be done as unsigned characters. Otherwise there
237 are problems with top-bit-set characters and functions such as isspace().
238 However, we leave the interface to the outside world as char * or short *,
239 because that should make things easier for callers. This character type is
240 called pcre_uchar.
241
242 The IN_UCHARS macro multiply its argument with the byte size of the current
243 pcre_uchar type. Useful for memcpy and such operations, whose require the
244 byte size of their input/output buffers.
245
246 The MAX_255 macro checks whether its pcre_uchar input is less than 256.
247
248 The TABLE_GET macro is designed for accessing elements of tables whose contain
249 exactly 256 items. When the character is able to contain more than 256
250 items, some check is needed before accessing these tables.
251 */
252
253 #if defined COMPILE_PCRE8
254
255 typedef unsigned char pcre_uchar;
256 #define IN_UCHARS(x) (x)
257 #define MAX_255(c) 1
258 #define TABLE_GET(c, table, default) ((table)[c])
259
260 #elif defined COMPILE_PCRE16
261
262 #if USHRT_MAX != 65535
263 /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
264 pcre.h(.in) and disable (comment out) this message. */
265 #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
266 #endif
267
268 typedef pcre_uint16 pcre_uchar;
269 #define UCHAR_SHIFT (1)
270 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
271 #define MAX_255(c) ((c) <= 255u)
272 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
273
274 #elif defined COMPILE_PCRE32
275
276 typedef pcre_uint32 pcre_uchar;
277 #define UCHAR_SHIFT (2)
278 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
279 #define MAX_255(c) ((c) <= 255u)
280 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
281
282 /* Assert that pcre_uchar32 is a 32-bit type */
283 typedef int __assert_pcre_uchar32_size[sizeof(pcre_uchar) == 4 ? 1 : -1];
284
285 #else
286 #error Unsupported compiling mode
287 #endif /* COMPILE_PCRE[8|16|32] */
288
289 /* This is an unsigned int value that no character can ever have. UTF-8
290 characters only go up to 0x7fffffff (though Unicode doesn't go beyond
291 0x0010ffff). */
292
293 #define NOTACHAR 0xffffffff
294
295 /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
296 "any" and "anycrlf" at present). The following macros are used to package up
297 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
298 modules to indicate in which datablock the parameters exist, and what the
299 start/end of string field names are. */
300
301 #define NLTYPE_FIXED 0 /* Newline is a fixed length string */
302 #define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
303 #define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
304
305 /* This macro checks for a newline at the given position */
306
307 #define IS_NEWLINE(p) \
308 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
309 ((p) < NLBLOCK->PSEND && \
310 PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
311 &(NLBLOCK->nllen), utf)) \
312 : \
313 ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
314 RAWUCHARTEST(p) == NLBLOCK->nl[0] && \
315 (NLBLOCK->nllen == 1 || RAWUCHARTEST(p+1) == NLBLOCK->nl[1]) \
316 ) \
317 )
318
319 /* This macro checks for a newline immediately preceding the given position */
320
321 #define WAS_NEWLINE(p) \
322 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
323 ((p) > NLBLOCK->PSSTART && \
324 PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
325 &(NLBLOCK->nllen), utf)) \
326 : \
327 ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
328 RAWUCHARTEST(p - NLBLOCK->nllen) == NLBLOCK->nl[0] && \
329 (NLBLOCK->nllen == 1 || RAWUCHARTEST(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
330 ) \
331 )
332
333 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
334 with a custom type. This makes it possible, for example, to allow pcre_exec()
335 to process subject strings that are discontinuous by using a smart pointer
336 class. It must always be possible to inspect all of the subject string in
337 pcre_exec() because of the way it backtracks. Two macros are required in the
338 normal case, for sign-unspecified and unsigned char pointers. The former is
339 used for the external interface and appears in pcre.h, which is why its name
340 must begin with PCRE_. */
341
342 #ifdef CUSTOM_SUBJECT_PTR
343 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
344 #else
345 #define PCRE_PUCHAR const pcre_uchar *
346 #endif
347
348 /* Include the public PCRE header and the definitions of UCP character property
349 values. */
350
351 #include "pcre.h"
352 #include "ucp.h"
353
354 /* When compiling for use with the Virtual Pascal compiler, these functions
355 need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
356 option on the command line. */
357
358 #ifdef VPCOMPAT
359 #define strlen(s) _strlen(s)
360 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
361 #define memcmp(s,c,n) _memcmp(s,c,n)
362 #define memcpy(d,s,n) _memcpy(d,s,n)
363 #define memmove(d,s,n) _memmove(d,s,n)
364 #define memset(s,c,n) _memset(s,c,n)
365 #else /* VPCOMPAT */
366
367 /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
368 define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
369 is set. Otherwise, include an emulating function for those systems that have
370 neither (there some non-Unix environments where this is the case). */
371
372 #ifndef HAVE_MEMMOVE
373 #undef memmove /* some systems may have a macro */
374 #ifdef HAVE_BCOPY
375 #define memmove(a, b, c) bcopy(b, a, c)
376 #else /* HAVE_BCOPY */
377 static void *
378 pcre_memmove(void *d, const void *s, size_t n)
379 {
380 size_t i;
381 unsigned char *dest = (unsigned char *)d;
382 const unsigned char *src = (const unsigned char *)s;
383 if (dest > src)
384 {
385 dest += n;
386 src += n;
387 for (i = 0; i < n; ++i) *(--dest) = *(--src);
388 return (void *)dest;
389 }
390 else
391 {
392 for (i = 0; i < n; ++i) *dest++ = *src++;
393 return (void *)(dest - n);
394 }
395 }
396 #define memmove(a, b, c) pcre_memmove(a, b, c)
397 #endif /* not HAVE_BCOPY */
398 #endif /* not HAVE_MEMMOVE */
399 #endif /* not VPCOMPAT */
400
401
402 /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
403 in big-endian order) by default. These are used, for example, to link from the
404 start of a subpattern to its alternatives and its end. The use of 2 bytes per
405 offset limits the size of the compiled regex to around 64K, which is big enough
406 for almost everybody. However, I received a request for an even bigger limit.
407 For this reason, and also to make the code easier to maintain, the storing and
408 loading of offsets from the byte string is now handled by the macros that are
409 defined here.
410
411 The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
412 the config.h file, but can be overridden by using -D on the command line. This
413 is automated on Unix systems via the "configure" command. */
414
415 #if defined COMPILE_PCRE8
416
417 #if LINK_SIZE == 2
418
419 #define PUT(a,n,d) \
420 (a[n] = (d) >> 8), \
421 (a[(n)+1] = (d) & 255)
422
423 #define GET(a,n) \
424 (((a)[n] << 8) | (a)[(n)+1])
425
426 #define MAX_PATTERN_SIZE (1 << 16)
427
428
429 #elif LINK_SIZE == 3
430
431 #define PUT(a,n,d) \
432 (a[n] = (d) >> 16), \
433 (a[(n)+1] = (d) >> 8), \
434 (a[(n)+2] = (d) & 255)
435
436 #define GET(a,n) \
437 (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
438
439 #define MAX_PATTERN_SIZE (1 << 24)
440
441
442 #elif LINK_SIZE == 4
443
444 #define PUT(a,n,d) \
445 (a[n] = (d) >> 24), \
446 (a[(n)+1] = (d) >> 16), \
447 (a[(n)+2] = (d) >> 8), \
448 (a[(n)+3] = (d) & 255)
449
450 #define GET(a,n) \
451 (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
452
453 /* Keep it positive */
454 #define MAX_PATTERN_SIZE (1 << 30)
455
456 #else
457 #error LINK_SIZE must be either 2, 3, or 4
458 #endif
459
460 #elif defined COMPILE_PCRE16
461
462 #if LINK_SIZE == 2
463
464 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
465 #undef LINK_SIZE
466 #define LINK_SIZE 1
467
468 #define PUT(a,n,d) \
469 (a[n] = (d))
470
471 #define GET(a,n) \
472 (a[n])
473
474 #define MAX_PATTERN_SIZE (1 << 16)
475
476 #elif LINK_SIZE == 3 || LINK_SIZE == 4
477
478 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
479 #undef LINK_SIZE
480 #define LINK_SIZE 2
481
482 #define PUT(a,n,d) \
483 (a[n] = (d) >> 16), \
484 (a[(n)+1] = (d) & 65535)
485
486 #define GET(a,n) \
487 (((a)[n] << 16) | (a)[(n)+1])
488
489 /* Keep it positive */
490 #define MAX_PATTERN_SIZE (1 << 30)
491
492 #else
493 #error LINK_SIZE must be either 2, 3, or 4
494 #endif
495
496 #elif defined COMPILE_PCRE32
497
498 /* Only supported LINK_SIZE is 4 */
499 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
500 #undef LINK_SIZE
501 #define LINK_SIZE 1
502
503 #define PUT(a,n,d) \
504 (a[n] = (d))
505
506 #define GET(a,n) \
507 (a[n])
508
509 /* Keep it positive */
510 #define MAX_PATTERN_SIZE (1 << 30)
511
512 #else
513 #error Unsupported compiling mode
514 #endif /* COMPILE_PCRE[8|16|32] */
515
516 /* Convenience macro defined in terms of the others */
517
518 #define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
519
520
521 /* PCRE uses some other 2-byte quantities that do not change when the size of
522 offsets changes. There are used for repeat counts and for other things such as
523 capturing parenthesis numbers in back references. */
524
525 #if defined COMPILE_PCRE8
526
527 #define IMM2_SIZE 2
528
529 #define PUT2(a,n,d) \
530 a[n] = (d) >> 8; \
531 a[(n)+1] = (d) & 255
532
533 /* For reasons that I do not understand, the expression in this GET2 macro is
534 treated by gcc as a signed expression, even when a is declared as unsigned. It
535 seems that any kind of arithmetic results in a signed value. */
536
537 #define GET2(a,n) \
538 (unsigned int)(((a)[n] << 8) | (a)[(n)+1])
539
540 #elif defined COMPILE_PCRE16
541
542 #define IMM2_SIZE 1
543
544 #define PUT2(a,n,d) \
545 a[n] = d
546
547 #define GET2(a,n) \
548 a[n]
549
550 #elif defined COMPILE_PCRE32
551
552 #define IMM2_SIZE 1
553
554 #define PUT2(a,n,d) \
555 a[n] = d
556
557 #define GET2(a,n) \
558 a[n]
559
560 #else
561 #error Unsupported compiling mode
562 #endif /* COMPILE_PCRE[8|16|32] */
563
564 #define PUT2INC(a,n,d) PUT2(a,n,d), a += IMM2_SIZE
565
566 /* The maximum length of a MARK name is currently one data unit; it may be
567 changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
568
569 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
570 #define MAX_MARK ((1u << 16) - 1)
571 #else
572 #define MAX_MARK ((1u << 8) - 1)
573 #endif
574
575 /* When UTF encoding is being used, a character is no longer just a single
576 byte. The macros for character handling generate simple sequences when used in
577 character-mode, and more complicated ones for UTF characters. GETCHARLENTEST
578 and other macros are not used when UTF is not supported, so they are not
579 defined. To make sure they can never even appear when UTF support is omitted,
580 we don't even define them. */
581
582 #ifndef SUPPORT_UTF
583
584 /* #define MAX_VALUE_FOR_SINGLE_CHAR */
585 /* #define HAS_EXTRALEN(c) */
586 /* #define GET_EXTRALEN(c) */
587 /* #define NOT_FIRSTCHAR(c) */
588 #define GETCHAR(c, eptr) c = *eptr;
589 #define GETCHARTEST(c, eptr) c = *eptr;
590 #define GETCHARINC(c, eptr) c = *eptr++;
591 #define GETCHARINCTEST(c, eptr) c = *eptr++;
592 #define GETCHARLEN(c, eptr, len) c = *eptr;
593 #define RAWUCHAR(eptr) (*(eptr))
594 #define RAWUCHARINC(eptr) (*(eptr)++)
595 #define RAWUCHARTEST(eptr) (*(eptr))
596 #define RAWUCHARINCTEST(eptr) (*(eptr)++)
597 /* #define GETCHARLENTEST(c, eptr, len) */
598 /* #define BACKCHAR(eptr) */
599 /* #define FORWARDCHAR(eptr) */
600 /* #define ACROSSCHAR(condition, eptr, action) */
601
602 #else /* SUPPORT_UTF */
603
604 /* Tests whether the code point needs extra characters to decode. */
605
606 #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
607
608 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
609 advancing the pointer. */
610
611 #define GETUTF8(c, eptr) \
612 { \
613 if ((c & 0x20) == 0) \
614 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
615 else if ((c & 0x10) == 0) \
616 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
617 else if ((c & 0x08) == 0) \
618 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
619 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
620 else if ((c & 0x04) == 0) \
621 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
622 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
623 (eptr[4] & 0x3f); \
624 else \
625 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
626 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
627 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
628 }
629
630 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
631 the pointer. */
632
633 #define GETUTF8INC(c, eptr) \
634 { \
635 if ((c & 0x20) == 0) \
636 c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
637 else if ((c & 0x10) == 0) \
638 { \
639 c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
640 eptr += 2; \
641 } \
642 else if ((c & 0x08) == 0) \
643 { \
644 c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
645 ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
646 eptr += 3; \
647 } \
648 else if ((c & 0x04) == 0) \
649 { \
650 c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
651 ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
652 (eptr[3] & 0x3f); \
653 eptr += 4; \
654 } \
655 else \
656 { \
657 c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
658 ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
659 ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
660 eptr += 5; \
661 } \
662 }
663
664 #if defined COMPILE_PCRE8
665
666 /* These macros were originally written in the form of loops that used data
667 from the tables whose names start with PRIV(utf8_table). They were rewritten by
668 a user so as not to use loops, because in some environments this gives a
669 significant performance advantage, and it seems never to do any harm. */
670
671 /* Tells the biggest code point which can be encoded as a single character. */
672
673 #define MAX_VALUE_FOR_SINGLE_CHAR 127
674
675 /* Tests whether the code point needs extra characters to decode. */
676
677 #define HAS_EXTRALEN(c) ((c) >= 0xc0)
678
679 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
680 Otherwise it has an undefined behaviour. */
681
682 #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
683
684 /* Returns TRUE, if the given character is not the first character
685 of a UTF sequence. */
686
687 #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
688
689 /* Get the next UTF-8 character, not advancing the pointer. This is called when
690 we know we are in UTF-8 mode. */
691
692 #define GETCHAR(c, eptr) \
693 c = *eptr; \
694 if (c >= 0xc0) GETUTF8(c, eptr);
695
696 /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
697 pointer. */
698
699 #define GETCHARTEST(c, eptr) \
700 c = *eptr; \
701 if (utf && c >= 0xc0) GETUTF8(c, eptr);
702
703 /* Get the next UTF-8 character, advancing the pointer. This is called when we
704 know we are in UTF-8 mode. */
705
706 #define GETCHARINC(c, eptr) \
707 c = *eptr++; \
708 if (c >= 0xc0) GETUTF8INC(c, eptr);
709
710 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
711 This is called when we don't know if we are in UTF-8 mode. */
712
713 #define GETCHARINCTEST(c, eptr) \
714 c = *eptr++; \
715 if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
716
717 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
718 advancing the pointer, incrementing the length. */
719
720 #define GETUTF8LEN(c, eptr, len) \
721 { \
722 if ((c & 0x20) == 0) \
723 { \
724 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
725 len++; \
726 } \
727 else if ((c & 0x10) == 0) \
728 { \
729 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
730 len += 2; \
731 } \
732 else if ((c & 0x08) == 0) \
733 {\
734 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
735 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
736 len += 3; \
737 } \
738 else if ((c & 0x04) == 0) \
739 { \
740 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
741 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
742 (eptr[4] & 0x3f); \
743 len += 4; \
744 } \
745 else \
746 {\
747 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
748 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
749 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
750 len += 5; \
751 } \
752 }
753
754 /* Get the next UTF-8 character, not advancing the pointer, incrementing length
755 if there are extra bytes. This is called when we know we are in UTF-8 mode. */
756
757 #define GETCHARLEN(c, eptr, len) \
758 c = *eptr; \
759 if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
760
761 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
762 pointer, incrementing length if there are extra bytes. This is called when we
763 do not know if we are in UTF-8 mode. */
764
765 #define GETCHARLENTEST(c, eptr, len) \
766 c = *eptr; \
767 if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
768
769 /* Returns the next uchar, not advancing the pointer. This is called when
770 we know we are in UTF mode. */
771
772 #define RAWUCHAR(eptr) \
773 (*(eptr))
774
775 /* Returns the next uchar, advancing the pointer. This is called when
776 we know we are in UTF mode. */
777
778 #define RAWUCHARINC(eptr) \
779 (*(eptr)++)
780
781 /* Returns the next uchar, testing for UTF mode, and not advancing the
782 pointer. */
783
784 #define RAWUCHARTEST(eptr) \
785 (*(eptr))
786
787 /* Returns the next uchar, testing for UTF mode, advancing the
788 pointer. */
789
790 #define RAWUCHARINCTEST(eptr) \
791 (*(eptr)++)
792
793 /* If the pointer is not at the start of a character, move it back until
794 it is. This is called only in UTF-8 mode - we don't put a test within the macro
795 because almost all calls are already within a block of UTF-8 only code. */
796
797 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
798
799 /* Same as above, just in the other direction. */
800 #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
801
802 /* Same as above, but it allows a fully customizable form. */
803 #define ACROSSCHAR(condition, eptr, action) \
804 while((condition) && ((eptr) & 0xc0) == 0x80) action
805
806 #elif defined COMPILE_PCRE16
807
808 /* Tells the biggest code point which can be encoded as a single character. */
809
810 #define MAX_VALUE_FOR_SINGLE_CHAR 65535
811
812 /* Tests whether the code point needs extra characters to decode. */
813
814 #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
815
816 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
817 Otherwise it has an undefined behaviour. */
818
819 #define GET_EXTRALEN(c) 1
820
821 /* Returns TRUE, if the given character is not the first character
822 of a UTF sequence. */
823
824 #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
825
826 /* Base macro to pick up the low surrogate of a UTF-16 character, not
827 advancing the pointer. */
828
829 #define GETUTF16(c, eptr) \
830 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
831
832 /* Get the next UTF-16 character, not advancing the pointer. This is called when
833 we know we are in UTF-16 mode. */
834
835 #define GETCHAR(c, eptr) \
836 c = *eptr; \
837 if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
838
839 /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
840 pointer. */
841
842 #define GETCHARTEST(c, eptr) \
843 c = *eptr; \
844 if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
845
846 /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
847 the pointer. */
848
849 #define GETUTF16INC(c, eptr) \
850 { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
851
852 /* Get the next UTF-16 character, advancing the pointer. This is called when we
853 know we are in UTF-16 mode. */
854
855 #define GETCHARINC(c, eptr) \
856 c = *eptr++; \
857 if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
858
859 /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
860 This is called when we don't know if we are in UTF-16 mode. */
861
862 #define GETCHARINCTEST(c, eptr) \
863 c = *eptr++; \
864 if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
865
866 /* Base macro to pick up the low surrogate of a UTF-16 character, not
867 advancing the pointer, incrementing the length. */
868
869 #define GETUTF16LEN(c, eptr, len) \
870 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
871
872 /* Get the next UTF-16 character, not advancing the pointer, incrementing
873 length if there is a low surrogate. This is called when we know we are in
874 UTF-16 mode. */
875
876 #define GETCHARLEN(c, eptr, len) \
877 c = *eptr; \
878 if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
879
880 /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
881 pointer, incrementing length if there is a low surrogate. This is called when
882 we do not know if we are in UTF-16 mode. */
883
884 #define GETCHARLENTEST(c, eptr, len) \
885 c = *eptr; \
886 if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
887
888 /* Returns the next uchar, not advancing the pointer. This is called when
889 we know we are in UTF mode. */
890
891 #define RAWUCHAR(eptr) \
892 (*(eptr))
893
894 /* Returns the next uchar, advancing the pointer. This is called when
895 we know we are in UTF mode. */
896
897 #define RAWUCHARINC(eptr) \
898 (*(eptr)++)
899
900 /* Returns the next uchar, testing for UTF mode, and not advancing the
901 pointer. */
902
903 #define RAWUCHARTEST(eptr) \
904 (*(eptr))
905
906 /* Returns the next uchar, testing for UTF mode, advancing the
907 pointer. */
908
909 #define RAWUCHARINCTEST(eptr) \
910 (*(eptr)++)
911
912 /* If the pointer is not at the start of a character, move it back until
913 it is. This is called only in UTF-16 mode - we don't put a test within the
914 macro because almost all calls are already within a block of UTF-16 only
915 code. */
916
917 #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
918
919 /* Same as above, just in the other direction. */
920 #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
921
922 /* Same as above, but it allows a fully customizable form. */
923 #define ACROSSCHAR(condition, eptr, action) \
924 if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
925
926 #elif defined COMPILE_PCRE32
927
928 /* These are trivial for the 32-bit library, since all UTF-32 characters fit
929 into one pcre_uchar unit. */
930 #define MAX_VALUE_FOR_SINGLE_CHAR (0x10ffffu)
931 #define HAS_EXTRALEN(c) (0)
932 #define GET_EXTRALEN(c) (0)
933 #define NOT_FIRSTCHAR(c) (0)
934
935 #define UTF32_MASK (0x1fffffu)
936
937 /* Get the next UTF-32 character, not advancing the pointer. This is called when
938 we know we are in UTF-32 mode. */
939
940 #define GETCHAR(c, eptr) \
941 c = (*eptr) & UTF32_MASK;
942
943 /* Get the next UTF-32 character, testing for UTF-32 mode, and not advancing the
944 pointer. */
945
946 #define GETCHARTEST(c, eptr) \
947 c = *eptr; \
948 if (utf) c &= UTF32_MASK;
949
950 /* Get the next UTF-32 character, advancing the pointer. This is called when we
951 know we are in UTF-32 mode. */
952
953 #define GETCHARINC(c, eptr) \
954 c = (*eptr++) & UTF32_MASK;
955
956 /* Get the next character, testing for UTF-32 mode, and advancing the pointer.
957 This is called when we don't know if we are in UTF-32 mode. */
958
959 #define GETCHARINCTEST(c, eptr) \
960 c = *eptr++; \
961 if (utf) c &= UTF32_MASK;
962
963 /* Get the next UTF-32 character, not advancing the pointer, not incrementing
964 length (since all UTF-32 is of length 1). This is called when we know we are in
965 UTF-32 mode. */
966
967 #define GETCHARLEN(c, eptr, len) \
968 GETCHAR(c, eptr)
969
970 /* Get the next UTF-32character, testing for UTF-32 mode, not advancing the
971 pointer, not incrementing the length (since all UTF-32 is of length 1).
972 This is called when we do not know if we are in UTF-32 mode. */
973
974 #define GETCHARLENTEST(c, eptr, len) \
975 GETCHARTEST(c, eptr)
976
977 /* Returns the next uchar, not advancing the pointer. This is called when
978 we know we are in UTF mode. */
979
980 #define RAWUCHAR(eptr) \
981 (*(eptr) & UTF32_MASK)
982
983 /* Returns the next uchar, advancing the pointer. This is called when
984 we know we are in UTF mode. */
985
986 #define RAWUCHARINC(eptr) \
987 (*(eptr)++ & UTF32_MASK)
988
989 /* Returns the next uchar, testing for UTF mode, and not advancing the
990 pointer. */
991
992 #define RAWUCHARTEST(eptr) \
993 (utf ? (*(eptr) & UTF32_MASK) : *(eptr))
994
995 /* Returns the next uchar, testing for UTF mode, advancing the
996 pointer. */
997
998 #define RAWUCHARINCTEST(eptr) \
999 (utf ? (*(eptr)++ & UTF32_MASK) : *(eptr)++)
1000
1001 /* If the pointer is not at the start of a character, move it back until
1002 it is. This is called only in UTF-32 mode - we don't put a test within the
1003 macro because almost all calls are already within a block of UTF-32 only
1004 code.
1005 These are all no-ops since all UTF-32 characters fit into one pcre_uchar. */
1006
1007 #define BACKCHAR(eptr) do { } while (0)
1008
1009 /* Same as above, just in the other direction. */
1010 #define FORWARDCHAR(eptr) do { } while (0)
1011
1012 /* Same as above, but it allows a fully customizable form. */
1013 #define ACROSSCHAR(condition, eptr, action) do { } while (0)
1014
1015 #else
1016 #error Unsupported compiling mode
1017 #endif /* COMPILE_PCRE[8|16|32] */
1018
1019 #endif /* SUPPORT_UTF */
1020
1021 /* Tests for Unicode horizontal and vertical whitespace characters must check a
1022 number of different values. Using a switch statement for this generates the
1023 fastest code (no loop, no memory access), and there are several places in the
1024 interpreter code where this happens. In order to ensure that all the case lists
1025 remain in step, we use macros so that there is only one place where the lists
1026 are defined.
1027
1028 These values are also required as lists in pcre_compile.c when processing \h,
1029 \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
1030 macros that define the values are here so that all the definitions are
1031 together. The lists must be in ascending character order, terminated by
1032 NOTACHAR (which is 0xffffffff).
1033
1034 Any changes should ensure that the various macros are kept in step with each
1035 other. NOTE: The values also appear in pcre_jit_compile.c. */
1036
1037 /* ------ ASCII/Unicode environments ------ */
1038
1039 #ifndef EBCDIC
1040
1041 #define HSPACE_LIST \
1042 CHAR_HT, CHAR_SPACE, 0xa0, \
1043 0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
1044 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
1045 NOTACHAR
1046
1047 #define HSPACE_MULTIBYTE_CASES \
1048 case 0x1680: /* OGHAM SPACE MARK */ \
1049 case 0x180e: /* MONGOLIAN VOWEL SEPARATOR */ \
1050 case 0x2000: /* EN QUAD */ \
1051 case 0x2001: /* EM QUAD */ \
1052 case 0x2002: /* EN SPACE */ \
1053 case 0x2003: /* EM SPACE */ \
1054 case 0x2004: /* THREE-PER-EM SPACE */ \
1055 case 0x2005: /* FOUR-PER-EM SPACE */ \
1056 case 0x2006: /* SIX-PER-EM SPACE */ \
1057 case 0x2007: /* FIGURE SPACE */ \
1058 case 0x2008: /* PUNCTUATION SPACE */ \
1059 case 0x2009: /* THIN SPACE */ \
1060 case 0x200A: /* HAIR SPACE */ \
1061 case 0x202f: /* NARROW NO-BREAK SPACE */ \
1062 case 0x205f: /* MEDIUM MATHEMATICAL SPACE */ \
1063 case 0x3000 /* IDEOGRAPHIC SPACE */
1064
1065 #define HSPACE_BYTE_CASES \
1066 case CHAR_HT: \
1067 case CHAR_SPACE: \
1068 case 0xa0 /* NBSP */
1069
1070 #define HSPACE_CASES \
1071 HSPACE_BYTE_CASES: \
1072 HSPACE_MULTIBYTE_CASES
1073
1074 #define VSPACE_LIST \
1075 CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
1076
1077 #define VSPACE_MULTIBYTE_CASES \
1078 case 0x2028: /* LINE SEPARATOR */ \
1079 case 0x2029 /* PARAGRAPH SEPARATOR */
1080
1081 #define VSPACE_BYTE_CASES \
1082 case CHAR_LF: \
1083 case CHAR_VT: \
1084 case CHAR_FF: \
1085 case CHAR_CR: \
1086 case CHAR_NEL
1087
1088 #define VSPACE_CASES \
1089 VSPACE_BYTE_CASES: \
1090 VSPACE_MULTIBYTE_CASES
1091
1092 /* ------ EBCDIC environments ------ */
1093
1094 #else
1095 #define HSPACE_LIST CHAR_HT, CHAR_SPACE
1096
1097 #define HSPACE_BYTE_CASES \
1098 case CHAR_HT: \
1099 case CHAR_SPACE
1100
1101 #define HSPACE_CASES HSPACE_BYTE_CASES
1102
1103 #ifdef EBCDIC_NL25
1104 #define VSPACE_LIST \
1105 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
1106 #else
1107 #define VSPACE_LIST \
1108 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
1109 #endif
1110
1111 #define VSPACE_BYTE_CASES \
1112 case CHAR_LF: \
1113 case CHAR_VT: \
1114 case CHAR_FF: \
1115 case CHAR_CR: \
1116 case CHAR_NEL
1117
1118 #define VSPACE_CASES VSPACE_BYTE_CASES
1119 #endif /* EBCDIC */
1120
1121 /* ------ End of whitespace macros ------ */
1122
1123
1124
1125 /* Private flags containing information about the compiled regex. They used to
1126 live at the top end of the options word, but that got almost full, so now they
1127 are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
1128 the restrictions on partial matching have been lifted. It remains for backwards
1129 compatibility. */
1130
1131 #define PCRE_MODE8 0x0001 /* compiled in 8 bit mode */
1132 #define PCRE_MODE16 0x0002 /* compiled in 16 bit mode */
1133 #define PCRE_MODE32 0x0004 /* compiled in 32 bit mode */
1134 #define PCRE_FIRSTSET 0x0010 /* first_char is set */
1135 #define PCRE_FCH_CASELESS 0x0020 /* caseless first char */
1136 #define PCRE_REQCHSET 0x0040 /* req_byte is set */
1137 #define PCRE_RCH_CASELESS 0x0080 /* caseless requested char */
1138 #define PCRE_STARTLINE 0x0100 /* start after \n for multiline */
1139 #define PCRE_NOPARTIAL 0x0200 /* can't use partial with this regex */
1140 #define PCRE_JCHANGED 0x0400 /* j option used in regex */
1141 #define PCRE_HASCRORLF 0x0800 /* explicit \r or \n in pattern */
1142 #define PCRE_HASTHEN 0x1000 /* pattern contains (*THEN) */
1143
1144 #if defined COMPILE_PCRE8
1145 #define PCRE_MODE PCRE_MODE8
1146 #elif defined COMPILE_PCRE16
1147 #define PCRE_MODE PCRE_MODE16
1148 #elif defined COMPILE_PCRE32
1149 #define PCRE_MODE PCRE_MODE32
1150 #endif
1151 #define PCRE_MODE_MASK (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
1152
1153 /* Flags for the "extra" block produced by pcre_study(). */
1154
1155 #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
1156 #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
1157
1158 /* Masks for identifying the public options that are permitted at compile
1159 time, run time, or study time, respectively. */
1160
1161 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
1162 PCRE_NEWLINE_ANYCRLF)
1163
1164 #define PUBLIC_COMPILE_OPTIONS \
1165 (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
1166 PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
1167 PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1168 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1169 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
1170
1171 #define PUBLIC_EXEC_OPTIONS \
1172 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1173 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
1174 PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
1175
1176 #define PUBLIC_DFA_EXEC_OPTIONS \
1177 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1178 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
1179 PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1180 PCRE_NO_START_OPTIMIZE)
1181
1182 #define PUBLIC_STUDY_OPTIONS \
1183 (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
1184 PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1185
1186 #define PUBLIC_JIT_EXEC_OPTIONS \
1187 (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
1188 PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
1189
1190 /* Magic number to provide a small check against being handed junk. */
1191
1192 #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
1193
1194 /* This variable is used to detect a loaded regular expression
1195 in different endianness. */
1196
1197 #define REVERSED_MAGIC_NUMBER 0x45524350UL /* 'ERCP' */
1198
1199 /* The maximum remaining length of subject we are prepared to search for a
1200 req_byte match. */
1201
1202 #define REQ_BYTE_MAX 1000
1203
1204 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1205 environments where these macros are defined elsewhere. Unfortunately, there
1206 is no way to do the same for the typedef. */
1207
1208 typedef int BOOL;
1209
1210 #ifndef FALSE
1211 #define FALSE 0
1212 #define TRUE 1
1213 #endif
1214
1215 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1216 character constants like '*' because the compiler would emit their EBCDIC code,
1217 which is different from their ASCII/UTF-8 code. Instead we define macros for
1218 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1219 is enabled. When UTF-8 support is not enabled, the definitions use character
1220 literals. Both character and string versions of each character are needed, and
1221 there are some longer strings as well.
1222
1223 This means that, on EBCDIC platforms, the PCRE library can handle either
1224 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1225 would need different lookups depending on whether PCRE_UTF8 was set or not.
1226 This would make it impossible to use characters in switch/case statements,
1227 which would reduce performance. For a theoretical use (which nobody has asked
1228 for) in a minority area (EBCDIC platforms), this is not sensible. Any
1229 application that did need both could compile two versions of the library, using
1230 macros to give the functions distinct names. */
1231
1232 #ifndef SUPPORT_UTF
1233
1234 /* UTF-8 support is not enabled; use the platform-dependent character literals
1235 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1236 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1237 characters, a common practice has been to use its NL (0x15) character as the
1238 line terminator in C-like processing environments. However, sometimes the LF
1239 (0x25) character is used instead, according to this Unicode document:
1240
1241 http://unicode.org/standard/reports/tr13/tr13-5.html
1242
1243 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1244 instead. Whichever is *not* chosen is defined as NEL.
1245
1246 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1247 same code point. */
1248
1249 #ifdef EBCDIC
1250
1251 #ifndef EBCDIC_NL25
1252 #define CHAR_NL '\x15'
1253 #define CHAR_NEL '\x25'
1254 #define STR_NL "\x15"
1255 #define STR_NEL "\x25"
1256 #else
1257 #define CHAR_NL '\x25'
1258 #define CHAR_NEL '\x15'
1259 #define STR_NL "\x25"
1260 #define STR_NEL "\x15"
1261 #endif
1262
1263 #define CHAR_LF CHAR_NL
1264 #define STR_LF STR_NL
1265
1266 #define CHAR_ESC '\047'
1267 #define CHAR_DEL '\007'
1268 #define STR_ESC "\047"
1269 #define STR_DEL "\007"
1270
1271 #else /* Not EBCDIC */
1272
1273 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1274 compatibility. NEL is the Unicode newline character; make sure it is
1275 a positive value. */
1276
1277 #define CHAR_LF '\n'
1278 #define CHAR_NL CHAR_LF
1279 #define CHAR_NEL ((unsigned char)'\x85')
1280 #define CHAR_ESC '\033'
1281 #define CHAR_DEL '\177'
1282
1283 #define STR_LF "\n"
1284 #define STR_NL STR_LF
1285 #define STR_NEL "\x85"
1286 #define STR_ESC "\033"
1287 #define STR_DEL "\177"
1288
1289 #endif /* EBCDIC */
1290
1291 /* The remaining definitions work in both environments. */
1292
1293 #define CHAR_NULL '\0'
1294 #define CHAR_HT '\t'
1295 #define CHAR_VT '\v'
1296 #define CHAR_FF '\f'
1297 #define CHAR_CR '\r'
1298 #define CHAR_BS '\b'
1299 #define CHAR_BEL '\a'
1300
1301 #define CHAR_SPACE ' '
1302 #define CHAR_EXCLAMATION_MARK '!'
1303 #define CHAR_QUOTATION_MARK '"'
1304 #define CHAR_NUMBER_SIGN '#'
1305 #define CHAR_DOLLAR_SIGN '$'
1306 #define CHAR_PERCENT_SIGN '%'
1307 #define CHAR_AMPERSAND '&'
1308 #define CHAR_APOSTROPHE '\''
1309 #define CHAR_LEFT_PARENTHESIS '('
1310 #define CHAR_RIGHT_PARENTHESIS ')'
1311 #define CHAR_ASTERISK '*'
1312 #define CHAR_PLUS '+'
1313 #define CHAR_COMMA ','
1314 #define CHAR_MINUS '-'
1315 #define CHAR_DOT '.'
1316 #define CHAR_SLASH '/'
1317 #define CHAR_0 '0'
1318 #define CHAR_1 '1'
1319 #define CHAR_2 '2'
1320 #define CHAR_3 '3'
1321 #define CHAR_4 '4'
1322 #define CHAR_5 '5'
1323 #define CHAR_6 '6'
1324 #define CHAR_7 '7'
1325 #define CHAR_8 '8'
1326 #define CHAR_9 '9'
1327 #define CHAR_COLON ':'
1328 #define CHAR_SEMICOLON ';'
1329 #define CHAR_LESS_THAN_SIGN '<'
1330 #define CHAR_EQUALS_SIGN '='
1331 #define CHAR_GREATER_THAN_SIGN '>'
1332 #define CHAR_QUESTION_MARK '?'
1333 #define CHAR_COMMERCIAL_AT '@'
1334 #define CHAR_A 'A'
1335 #define CHAR_B 'B'
1336 #define CHAR_C 'C'
1337 #define CHAR_D 'D'
1338 #define CHAR_E 'E'
1339 #define CHAR_F 'F'
1340 #define CHAR_G 'G'
1341 #define CHAR_H 'H'
1342 #define CHAR_I 'I'
1343 #define CHAR_J 'J'
1344 #define CHAR_K 'K'
1345 #define CHAR_L 'L'
1346 #define CHAR_M 'M'
1347 #define CHAR_N 'N'
1348 #define CHAR_O 'O'
1349 #define CHAR_P 'P'
1350 #define CHAR_Q 'Q'
1351 #define CHAR_R 'R'
1352 #define CHAR_S 'S'
1353 #define CHAR_T 'T'
1354 #define CHAR_U 'U'
1355 #define CHAR_V 'V'
1356 #define CHAR_W 'W'
1357 #define CHAR_X 'X'
1358 #define CHAR_Y 'Y'
1359 #define CHAR_Z 'Z'
1360 #define CHAR_LEFT_SQUARE_BRACKET '['
1361 #define CHAR_BACKSLASH '\\'
1362 #define CHAR_RIGHT_SQUARE_BRACKET ']'
1363 #define CHAR_CIRCUMFLEX_ACCENT '^'
1364 #define CHAR_UNDERSCORE '_'
1365 #define CHAR_GRAVE_ACCENT '`'
1366 #define CHAR_a 'a'
1367 #define CHAR_b 'b'
1368 #define CHAR_c 'c'
1369 #define CHAR_d 'd'
1370 #define CHAR_e 'e'
1371 #define CHAR_f 'f'
1372 #define CHAR_g 'g'
1373 #define CHAR_h 'h'
1374 #define CHAR_i 'i'
1375 #define CHAR_j 'j'
1376 #define CHAR_k 'k'
1377 #define CHAR_l 'l'
1378 #define CHAR_m 'm'
1379 #define CHAR_n 'n'
1380 #define CHAR_o 'o'
1381 #define CHAR_p 'p'
1382 #define CHAR_q 'q'
1383 #define CHAR_r 'r'
1384 #define CHAR_s 's'
1385 #define CHAR_t 't'
1386 #define CHAR_u 'u'
1387 #define CHAR_v 'v'
1388 #define CHAR_w 'w'
1389 #define CHAR_x 'x'
1390 #define CHAR_y 'y'
1391 #define CHAR_z 'z'
1392 #define CHAR_LEFT_CURLY_BRACKET '{'
1393 #define CHAR_VERTICAL_LINE '|'
1394 #define CHAR_RIGHT_CURLY_BRACKET '}'
1395 #define CHAR_TILDE '~'
1396
1397 #define STR_HT "\t"
1398 #define STR_VT "\v"
1399 #define STR_FF "\f"
1400 #define STR_CR "\r"
1401 #define STR_BS "\b"
1402 #define STR_BEL "\a"
1403
1404 #define STR_SPACE " "
1405 #define STR_EXCLAMATION_MARK "!"
1406 #define STR_QUOTATION_MARK "\""
1407 #define STR_NUMBER_SIGN "#"
1408 #define STR_DOLLAR_SIGN "$"
1409 #define STR_PERCENT_SIGN "%"
1410 #define STR_AMPERSAND "&"
1411 #define STR_APOSTROPHE "'"
1412 #define STR_LEFT_PARENTHESIS "("
1413 #define STR_RIGHT_PARENTHESIS ")"
1414 #define STR_ASTERISK "*"
1415 #define STR_PLUS "+"
1416 #define STR_COMMA ","
1417 #define STR_MINUS "-"
1418 #define STR_DOT "."
1419 #define STR_SLASH "/"
1420 #define STR_0 "0"
1421 #define STR_1 "1"
1422 #define STR_2 "2"
1423 #define STR_3 "3"
1424 #define STR_4 "4"
1425 #define STR_5 "5"
1426 #define STR_6 "6"
1427 #define STR_7 "7"
1428 #define STR_8 "8"
1429 #define STR_9 "9"
1430 #define STR_COLON ":"
1431 #define STR_SEMICOLON ";"
1432 #define STR_LESS_THAN_SIGN "<"
1433 #define STR_EQUALS_SIGN "="
1434 #define STR_GREATER_THAN_SIGN ">"
1435 #define STR_QUESTION_MARK "?"
1436 #define STR_COMMERCIAL_AT "@"
1437 #define STR_A "A"
1438 #define STR_B "B"
1439 #define STR_C "C"
1440 #define STR_D "D"
1441 #define STR_E "E"
1442 #define STR_F "F"
1443 #define STR_G "G"
1444 #define STR_H "H"
1445 #define STR_I "I"
1446 #define STR_J "J"
1447 #define STR_K "K"
1448 #define STR_L "L"
1449 #define STR_M "M"
1450 #define STR_N "N"
1451 #define STR_O "O"
1452 #define STR_P "P"
1453 #define STR_Q "Q"
1454 #define STR_R "R"
1455 #define STR_S "S"
1456 #define STR_T "T"
1457 #define STR_U "U"
1458 #define STR_V "V"
1459 #define STR_W "W"
1460 #define STR_X "X"
1461 #define STR_Y "Y"
1462 #define STR_Z "Z"
1463 #define STR_LEFT_SQUARE_BRACKET "["
1464 #define STR_BACKSLASH "\\"
1465 #define STR_RIGHT_SQUARE_BRACKET "]"
1466 #define STR_CIRCUMFLEX_ACCENT "^"
1467 #define STR_UNDERSCORE "_"
1468 #define STR_GRAVE_ACCENT "`"
1469 #define STR_a "a"
1470 #define STR_b "b"
1471 #define STR_c "c"
1472 #define STR_d "d"
1473 #define STR_e "e"
1474 #define STR_f "f"
1475 #define STR_g "g"
1476 #define STR_h "h"
1477 #define STR_i "i"
1478 #define STR_j "j"
1479 #define STR_k "k"
1480 #define STR_l "l"
1481 #define STR_m "m"
1482 #define STR_n "n"
1483 #define STR_o "o"
1484 #define STR_p "p"
1485 #define STR_q "q"
1486 #define STR_r "r"
1487 #define STR_s "s"
1488 #define STR_t "t"
1489 #define STR_u "u"
1490 #define STR_v "v"
1491 #define STR_w "w"
1492 #define STR_x "x"
1493 #define STR_y "y"
1494 #define STR_z "z"
1495 #define STR_LEFT_CURLY_BRACKET "{"
1496 #define STR_VERTICAL_LINE "|"
1497 #define STR_RIGHT_CURLY_BRACKET "}"
1498 #define STR_TILDE "~"
1499
1500 #define STRING_ACCEPT0 "ACCEPT\0"
1501 #define STRING_COMMIT0 "COMMIT\0"
1502 #define STRING_F0 "F\0"
1503 #define STRING_FAIL0 "FAIL\0"
1504 #define STRING_MARK0 "MARK\0"
1505 #define STRING_PRUNE0 "PRUNE\0"
1506 #define STRING_SKIP0 "SKIP\0"
1507 #define STRING_THEN "THEN"
1508
1509 #define STRING_alpha0 "alpha\0"
1510 #define STRING_lower0 "lower\0"
1511 #define STRING_upper0 "upper\0"
1512 #define STRING_alnum0 "alnum\0"
1513 #define STRING_ascii0 "ascii\0"
1514 #define STRING_blank0 "blank\0"
1515 #define STRING_cntrl0 "cntrl\0"
1516 #define STRING_digit0 "digit\0"
1517 #define STRING_graph0 "graph\0"
1518 #define STRING_print0 "print\0"
1519 #define STRING_punct0 "punct\0"
1520 #define STRING_space0 "space\0"
1521 #define STRING_word0 "word\0"
1522 #define STRING_xdigit "xdigit"
1523
1524 #define STRING_DEFINE "DEFINE"
1525
1526 #define STRING_CR_RIGHTPAR "CR)"
1527 #define STRING_LF_RIGHTPAR "LF)"
1528 #define STRING_CRLF_RIGHTPAR "CRLF)"
1529 #define STRING_ANY_RIGHTPAR "ANY)"
1530 #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1531 #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1532 #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1533 #ifdef COMPILE_PCRE8
1534 #define STRING_UTF_RIGHTPAR "UTF8)"
1535 #endif
1536 #ifdef COMPILE_PCRE16
1537 #define STRING_UTF_RIGHTPAR "UTF16)"
1538 #endif
1539 #ifdef COMPILE_PCRE32
1540 #define STRING_UTF_RIGHTPAR "UTF32)"
1541 #endif
1542 #define STRING_UCP_RIGHTPAR "UCP)"
1543 #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1544
1545 #else /* SUPPORT_UTF */
1546
1547 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1548 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1549 only. */
1550
1551 #define CHAR_HT '\011'
1552 #define CHAR_VT '\013'
1553 #define CHAR_FF '\014'
1554 #define CHAR_CR '\015'
1555 #define CHAR_LF '\012'
1556 #define CHAR_NL CHAR_LF
1557 #define CHAR_NEL ((unsigned char)'\x85')
1558 #define CHAR_BS '\010'
1559 #define CHAR_BEL '\007'
1560 #define CHAR_ESC '\033'
1561 #define CHAR_DEL '\177'
1562
1563 #define CHAR_NULL '\0'
1564 #define CHAR_SPACE '\040'
1565 #define CHAR_EXCLAMATION_MARK '\041'
1566 #define CHAR_QUOTATION_MARK '\042'
1567 #define CHAR_NUMBER_SIGN '\043'
1568 #define CHAR_DOLLAR_SIGN '\044'
1569 #define CHAR_PERCENT_SIGN '\045'
1570 #define CHAR_AMPERSAND '\046'
1571 #define CHAR_APOSTROPHE '\047'
1572 #define CHAR_LEFT_PARENTHESIS '\050'
1573 #define CHAR_RIGHT_PARENTHESIS '\051'
1574 #define CHAR_ASTERISK '\052'
1575 #define CHAR_PLUS '\053'
1576 #define CHAR_COMMA '\054'
1577 #define CHAR_MINUS '\055'
1578 #define CHAR_DOT '\056'
1579 #define CHAR_SLASH '\057'
1580 #define CHAR_0 '\060'
1581 #define CHAR_1 '\061'
1582 #define CHAR_2 '\062'
1583 #define CHAR_3 '\063'
1584 #define CHAR_4 '\064'
1585 #define CHAR_5 '\065'
1586 #define CHAR_6 '\066'
1587 #define CHAR_7 '\067'
1588 #define CHAR_8 '\070'
1589 #define CHAR_9 '\071'
1590 #define CHAR_COLON '\072'
1591 #define CHAR_SEMICOLON '\073'
1592 #define CHAR_LESS_THAN_SIGN '\074'
1593 #define CHAR_EQUALS_SIGN '\075'
1594 #define CHAR_GREATER_THAN_SIGN '\076'
1595 #define CHAR_QUESTION_MARK '\077'
1596 #define CHAR_COMMERCIAL_AT '\100'
1597 #define CHAR_A '\101'
1598 #define CHAR_B '\102'
1599 #define CHAR_C '\103'
1600 #define CHAR_D '\104'
1601 #define CHAR_E '\105'
1602 #define CHAR_F '\106'
1603 #define CHAR_G '\107'
1604 #define CHAR_H '\110'
1605 #define CHAR_I '\111'
1606 #define CHAR_J '\112'
1607 #define CHAR_K '\113'
1608 #define CHAR_L '\114'
1609 #define CHAR_M '\115'
1610 #define CHAR_N '\116'
1611 #define CHAR_O '\117'
1612 #define CHAR_P '\120'
1613 #define CHAR_Q '\121'
1614 #define CHAR_R '\122'
1615 #define CHAR_S '\123'
1616 #define CHAR_T '\124'
1617 #define CHAR_U '\125'
1618 #define CHAR_V '\126'
1619 #define CHAR_W '\127'
1620 #define CHAR_X '\130'
1621 #define CHAR_Y '\131'
1622 #define CHAR_Z '\132'
1623 #define CHAR_LEFT_SQUARE_BRACKET '\133'
1624 #define CHAR_BACKSLASH '\134'
1625 #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1626 #define CHAR_CIRCUMFLEX_ACCENT '\136'
1627 #define CHAR_UNDERSCORE '\137'
1628 #define CHAR_GRAVE_ACCENT '\140'
1629 #define CHAR_a '\141'
1630 #define CHAR_b '\142'
1631 #define CHAR_c '\143'
1632 #define CHAR_d '\144'
1633 #define CHAR_e '\145'
1634 #define CHAR_f '\146'
1635 #define CHAR_g '\147'
1636 #define CHAR_h '\150'
1637 #define CHAR_i '\151'
1638 #define CHAR_j '\152'
1639 #define CHAR_k '\153'
1640 #define CHAR_l '\154'
1641 #define CHAR_m '\155'
1642 #define CHAR_n '\156'
1643 #define CHAR_o '\157'
1644 #define CHAR_p '\160'
1645 #define CHAR_q '\161'
1646 #define CHAR_r '\162'
1647 #define CHAR_s '\163'
1648 #define CHAR_t '\164'
1649 #define CHAR_u '\165'
1650 #define CHAR_v '\166'
1651 #define CHAR_w '\167'
1652 #define CHAR_x '\170'
1653 #define CHAR_y '\171'
1654 #define CHAR_z '\172'
1655 #define CHAR_LEFT_CURLY_BRACKET '\173'
1656 #define CHAR_VERTICAL_LINE '\174'
1657 #define CHAR_RIGHT_CURLY_BRACKET '\175'
1658 #define CHAR_TILDE '\176'
1659
1660 #define STR_HT "\011"
1661 #define STR_VT "\013"
1662 #define STR_FF "\014"
1663 #define STR_CR "\015"
1664 #define STR_NL "\012"
1665 #define STR_BS "\010"
1666 #define STR_BEL "\007"
1667 #define STR_ESC "\033"
1668 #define STR_DEL "\177"
1669
1670 #define STR_SPACE "\040"
1671 #define STR_EXCLAMATION_MARK "\041"
1672 #define STR_QUOTATION_MARK "\042"
1673 #define STR_NUMBER_SIGN "\043"
1674 #define STR_DOLLAR_SIGN "\044"
1675 #define STR_PERCENT_SIGN "\045"
1676 #define STR_AMPERSAND "\046"
1677 #define STR_APOSTROPHE "\047"
1678 #define STR_LEFT_PARENTHESIS "\050"
1679 #define STR_RIGHT_PARENTHESIS "\051"
1680 #define STR_ASTERISK "\052"
1681 #define STR_PLUS "\053"
1682 #define STR_COMMA "\054"
1683 #define STR_MINUS "\055"
1684 #define STR_DOT "\056"
1685 #define STR_SLASH "\057"
1686 #define STR_0 "\060"
1687 #define STR_1 "\061"
1688 #define STR_2 "\062"
1689 #define STR_3 "\063"
1690 #define STR_4 "\064"
1691 #define STR_5 "\065"
1692 #define STR_6 "\066"
1693 #define STR_7 "\067"
1694 #define STR_8 "\070"
1695 #define STR_9 "\071"
1696 #define STR_COLON "\072"
1697 #define STR_SEMICOLON "\073"
1698 #define STR_LESS_THAN_SIGN "\074"
1699 #define STR_EQUALS_SIGN "\075"
1700 #define STR_GREATER_THAN_SIGN "\076"
1701 #define STR_QUESTION_MARK "\077"
1702 #define STR_COMMERCIAL_AT "\100"
1703 #define STR_A "\101"
1704 #define STR_B "\102"
1705 #define STR_C "\103"
1706 #define STR_D "\104"
1707 #define STR_E "\105"
1708 #define STR_F "\106"
1709 #define STR_G "\107"
1710 #define STR_H "\110"
1711 #define STR_I "\111"
1712 #define STR_J "\112"
1713 #define STR_K "\113"
1714 #define STR_L "\114"
1715 #define STR_M "\115"
1716 #define STR_N "\116"
1717 #define STR_O "\117"
1718 #define STR_P "\120"
1719 #define STR_Q "\121"
1720 #define STR_R "\122"
1721 #define STR_S "\123"
1722 #define STR_T "\124"
1723 #define STR_U "\125"
1724 #define STR_V "\126"
1725 #define STR_W "\127"
1726 #define STR_X "\130"
1727 #define STR_Y "\131"
1728 #define STR_Z "\132"
1729 #define STR_LEFT_SQUARE_BRACKET "\133"
1730 #define STR_BACKSLASH "\134"
1731 #define STR_RIGHT_SQUARE_BRACKET "\135"
1732 #define STR_CIRCUMFLEX_ACCENT "\136"
1733 #define STR_UNDERSCORE "\137"
1734 #define STR_GRAVE_ACCENT "\140"
1735 #define STR_a "\141"
1736 #define STR_b "\142"
1737 #define STR_c "\143"
1738 #define STR_d "\144"
1739 #define STR_e "\145"
1740 #define STR_f "\146"
1741 #define STR_g "\147"
1742 #define STR_h "\150"
1743 #define STR_i "\151"
1744 #define STR_j "\152"
1745 #define STR_k "\153"
1746 #define STR_l "\154"
1747 #define STR_m "\155"
1748 #define STR_n "\156"
1749 #define STR_o "\157"
1750 #define STR_p "\160"
1751 #define STR_q "\161"
1752 #define STR_r "\162"
1753 #define STR_s "\163"
1754 #define STR_t "\164"
1755 #define STR_u "\165"
1756 #define STR_v "\166"
1757 #define STR_w "\167"
1758 #define STR_x "\170"
1759 #define STR_y "\171"
1760 #define STR_z "\172"
1761 #define STR_LEFT_CURLY_BRACKET "\173"
1762 #define STR_VERTICAL_LINE "\174"
1763 #define STR_RIGHT_CURLY_BRACKET "\175"
1764 #define STR_TILDE "\176"
1765
1766 #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1767 #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1768 #define STRING_F0 STR_F "\0"
1769 #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1770 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1771 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1772 #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1773 #define STRING_THEN STR_T STR_H STR_E STR_N
1774
1775 #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1776 #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1777 #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1778 #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1779 #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1780 #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1781 #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1782 #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1783 #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1784 #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1785 #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1786 #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1787 #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1788 #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1789
1790 #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1791
1792 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1793 #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1794 #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1795 #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1796 #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1797 #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
1798 #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
1799 #ifdef COMPILE_PCRE8
1800 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1801 #endif
1802 #ifdef COMPILE_PCRE16
1803 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1804 #endif
1805 #ifdef COMPILE_PCRE32
1806 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1807 #endif
1808 #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1809 #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
1810
1811 #endif /* SUPPORT_UTF */
1812
1813 /* Escape items that are just an encoding of a particular data value. */
1814
1815 #ifndef ESC_e
1816 #define ESC_e CHAR_ESC
1817 #endif
1818
1819 #ifndef ESC_f
1820 #define ESC_f CHAR_FF
1821 #endif
1822
1823 #ifndef ESC_n
1824 #define ESC_n CHAR_LF
1825 #endif
1826
1827 #ifndef ESC_r
1828 #define ESC_r CHAR_CR
1829 #endif
1830
1831 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1832 (presumably because of all the others like size_t). */
1833
1834 #ifndef ESC_tee
1835 #define ESC_tee CHAR_HT
1836 #endif
1837
1838 /* Codes for different types of Unicode property */
1839
1840 #define PT_ANY 0 /* Any property - matches all chars */
1841 #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1842 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1843 #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1844 #define PT_SC 4 /* Script (e.g. Han) */
1845 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1846 #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1847 #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1848 #define PT_WORD 8 /* Word - L plus N plus underscore */
1849 #define PT_CLIST 9 /* Pseudo-property: match character list */
1850
1851 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1852 contain characters with values greater than 255. */
1853
1854 #define XCL_NOT 0x01 /* Flag: this is a negative class */
1855 #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1856
1857 #define XCL_END 0 /* Marks end of individual items */
1858 #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1859 #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1860 #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1861 #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1862
1863 /* These are escaped items that aren't just an encoding of a particular data
1864 value such as \n. They must have non-zero values, as check_escape() returns
1865 0 for a data character. Also, they must appear in the same order as in the opcode
1866 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1867 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1868 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1869 non-DOTALL mode, "." behaves like \N.
1870
1871 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1872 when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1873 They must be contiguous, and remain in order so that the replacements can be
1874 looked up from a table.
1875
1876 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1877 check_escape(). There are two tests in the code for an escape
1878 greater than ESC_b and less than ESC_Z to detect the types that may be
1879 repeated. These are the types that consume characters. If any new escapes are
1880 put in between that don't consume a character, that code will have to change.
1881 */
1882
1883 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1884 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1885 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1886 ESC_E, ESC_Q, ESC_g, ESC_k,
1887 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1888
1889 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1890 OP_EOD must correspond in order to the list of escapes immediately above.
1891
1892 *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1893 that follow must also be updated to match. There are also tables called
1894 "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1895
1896 enum {
1897 OP_END, /* 0 End of pattern */
1898
1899 /* Values corresponding to backslashed metacharacters */
1900
1901 OP_SOD, /* 1 Start of data: \A */
1902 OP_SOM, /* 2 Start of match (subject + offset): \G */
1903 OP_SET_SOM, /* 3 Set start of match (\K) */
1904 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1905 OP_WORD_BOUNDARY, /* 5 \b */
1906 OP_NOT_DIGIT, /* 6 \D */
1907 OP_DIGIT, /* 7 \d */
1908 OP_NOT_WHITESPACE, /* 8 \S */
1909 OP_WHITESPACE, /* 9 \s */
1910 OP_NOT_WORDCHAR, /* 10 \W */
1911 OP_WORDCHAR, /* 11 \w */
1912
1913 OP_ANY, /* 12 Match any character except newline (\N) */
1914 OP_ALLANY, /* 13 Match any character */
1915 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1916 OP_NOTPROP, /* 15 \P (not Unicode property) */
1917 OP_PROP, /* 16 \p (Unicode property) */
1918 OP_ANYNL, /* 17 \R (any newline sequence) */
1919 OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1920 OP_HSPACE, /* 19 \h (horizontal whitespace) */
1921 OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1922 OP_VSPACE, /* 21 \v (vertical whitespace) */
1923 OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1924 OP_EODN, /* 23 End of data or \n at end of data (\Z) */
1925 OP_EOD, /* 24 End of data (\z) */
1926
1927 OP_CIRC, /* 25 Start of line - not multiline */
1928 OP_CIRCM, /* 26 Start of line - multiline */
1929 OP_DOLL, /* 27 End of line - not multiline */
1930 OP_DOLLM, /* 28 End of line - multiline */
1931 OP_CHAR, /* 29 Match one character, casefully */
1932 OP_CHARI, /* 30 Match one character, caselessly */
1933 OP_NOT, /* 31 Match one character, not the given one, casefully */
1934 OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1935
1936 /* The following sets of 13 opcodes must always be kept in step because
1937 the offset from the first one is used to generate the others. */
1938
1939 /**** Single characters, caseful, must precede the caseless ones ****/
1940
1941 OP_STAR, /* 33 The maximizing and minimizing versions of */
1942 OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1943 OP_PLUS, /* 35 the minimizing one second. */
1944 OP_MINPLUS, /* 36 */
1945 OP_QUERY, /* 37 */
1946 OP_MINQUERY, /* 38 */
1947
1948 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1949 OP_MINUPTO, /* 40 */
1950 OP_EXACT, /* 41 Exactly n matches */
1951
1952 OP_POSSTAR, /* 42 Possessified star, caseful */
1953 OP_POSPLUS, /* 43 Possessified plus, caseful */
1954 OP_POSQUERY, /* 44 Posesssified query, caseful */
1955 OP_POSUPTO, /* 45 Possessified upto, caseful */
1956
1957 /**** Single characters, caseless, must follow the caseful ones */
1958
1959 OP_STARI, /* 46 */
1960 OP_MINSTARI, /* 47 */
1961 OP_PLUSI, /* 48 */
1962 OP_MINPLUSI, /* 49 */
1963 OP_QUERYI, /* 50 */
1964 OP_MINQUERYI, /* 51 */
1965
1966 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1967 OP_MINUPTOI, /* 53 */
1968 OP_EXACTI, /* 54 */
1969
1970 OP_POSSTARI, /* 55 Possessified star, caseless */
1971 OP_POSPLUSI, /* 56 Possessified plus, caseless */
1972 OP_POSQUERYI, /* 57 Posesssified query, caseless */
1973 OP_POSUPTOI, /* 58 Possessified upto, caseless */
1974
1975 /**** The negated ones must follow the non-negated ones, and match them ****/
1976 /**** Negated single character, caseful; must precede the caseless ones ****/
1977
1978 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
1979 OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
1980 OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
1981 OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
1982 OP_NOTQUERY, /* 63 */
1983 OP_NOTMINQUERY, /* 64 */
1984
1985 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
1986 OP_NOTMINUPTO, /* 66 */
1987 OP_NOTEXACT, /* 67 Exactly n matches */
1988
1989 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
1990 OP_NOTPOSPLUS, /* 69 */
1991 OP_NOTPOSQUERY, /* 70 */
1992 OP_NOTPOSUPTO, /* 71 */
1993
1994 /**** Negated single character, caseless; must follow the caseful ones ****/
1995
1996 OP_NOTSTARI, /* 72 */
1997 OP_NOTMINSTARI, /* 73 */
1998 OP_NOTPLUSI, /* 74 */
1999 OP_NOTMINPLUSI, /* 75 */
2000 OP_NOTQUERYI, /* 76 */
2001 OP_NOTMINQUERYI, /* 77 */
2002
2003 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
2004 OP_NOTMINUPTOI, /* 79 */
2005 OP_NOTEXACTI, /* 80 Exactly n matches */
2006
2007 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
2008 OP_NOTPOSPLUSI, /* 82 */
2009 OP_NOTPOSQUERYI, /* 83 */
2010 OP_NOTPOSUPTOI, /* 84 */
2011
2012 /**** Character types ****/
2013
2014 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
2015 OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
2016 OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
2017 OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
2018 OP_TYPEQUERY, /* 89 */
2019 OP_TYPEMINQUERY, /* 90 */
2020
2021 OP_TYPEUPTO, /* 91 From 0 to n matches */
2022 OP_TYPEMINUPTO, /* 92 */
2023 OP_TYPEEXACT, /* 93 Exactly n matches */
2024
2025 OP_TYPEPOSSTAR, /* 94 Possessified versions */
2026 OP_TYPEPOSPLUS, /* 95 */
2027 OP_TYPEPOSQUERY, /* 96 */
2028 OP_TYPEPOSUPTO, /* 97 */
2029
2030 /* These are used for character classes and back references; only the
2031 first six are the same as the sets above. */
2032
2033 OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
2034 OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
2035 OP_CRPLUS, /* 100 the minimizing one second. These codes must */
2036 OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
2037 OP_CRQUERY, /* 102 */
2038 OP_CRMINQUERY, /* 103 */
2039
2040 OP_CRRANGE, /* 104 These are different to the three sets above. */
2041 OP_CRMINRANGE, /* 105 */
2042
2043 /* End of quantifier opcodes */
2044
2045 OP_CLASS, /* 106 Match a character class, chars < 256 only */
2046 OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
2047 class - the difference is relevant only when a
2048 character > 255 is encountered. */
2049 OP_XCLASS, /* 108 Extended class for handling > 255 chars within the
2050 class. This does both positive and negative. */
2051 OP_REF, /* 109 Match a back reference, casefully */
2052 OP_REFI, /* 110 Match a back reference, caselessly */
2053 OP_RECURSE, /* 111 Match a numbered subpattern (possibly recursive) */
2054 OP_CALLOUT, /* 112 Call out to external function if provided */
2055
2056 OP_ALT, /* 113 Start of alternation */
2057 OP_KET, /* 114 End of group that doesn't have an unbounded repeat */
2058 OP_KETRMAX, /* 115 These two must remain together and in this */
2059 OP_KETRMIN, /* 116 order. They are for groups the repeat for ever. */
2060 OP_KETRPOS, /* 117 Possessive unlimited repeat. */
2061
2062 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
2063 asserts must remain in order. */
2064
2065 OP_REVERSE, /* 118 Move pointer back - used in lookbehind assertions */
2066 OP_ASSERT, /* 119 Positive lookahead */
2067 OP_ASSERT_NOT, /* 120 Negative lookahead */
2068 OP_ASSERTBACK, /* 121 Positive lookbehind */
2069 OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
2070
2071 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
2072 after the assertions, with ONCE first, as there's a test for >= ONCE for a
2073 subpattern that isn't an assertion. The POS versions must immediately follow
2074 the non-POS versions in each case. */
2075
2076 OP_ONCE, /* 123 Atomic group, contains captures */
2077 OP_ONCE_NC, /* 124 Atomic group containing no captures */
2078 OP_BRA, /* 125 Start of non-capturing bracket */
2079 OP_BRAPOS, /* 126 Ditto, with unlimited, possessive repeat */
2080 OP_CBRA, /* 127 Start of capturing bracket */
2081 OP_CBRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
2082 OP_COND, /* 129 Conditional group */
2083
2084 /* These five must follow the previous five, in the same order. There's a
2085 check for >= SBRA to distinguish the two sets. */
2086
2087 OP_SBRA, /* 130 Start of non-capturing bracket, check empty */
2088 OP_SBRAPOS, /* 131 Ditto, with unlimited, possessive repeat */
2089 OP_SCBRA, /* 132 Start of capturing bracket, check empty */
2090 OP_SCBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
2091 OP_SCOND, /* 134 Conditional group, check empty */
2092
2093 /* The next two pairs must (respectively) be kept together. */
2094
2095 OP_CREF, /* 135 Used to hold a capture number as condition */
2096 OP_NCREF, /* 136 Same, but generated by a name reference*/
2097 OP_RREF, /* 137 Used to hold a recursion number as condition */
2098 OP_NRREF, /* 138 Same, but generated by a name reference*/
2099 OP_DEF, /* 139 The DEFINE condition */
2100
2101 OP_BRAZERO, /* 140 These two must remain together and in this */
2102 OP_BRAMINZERO, /* 141 order. */
2103 OP_BRAPOSZERO, /* 142 */
2104
2105 /* These are backtracking control verbs */
2106
2107 OP_MARK, /* 143 always has an argument */
2108 OP_PRUNE, /* 144 */
2109 OP_PRUNE_ARG, /* 145 same, but with argument */
2110 OP_SKIP, /* 146 */
2111 OP_SKIP_ARG, /* 147 same, but with argument */
2112 OP_THEN, /* 148 */
2113 OP_THEN_ARG, /* 149 same, but with argument */
2114 OP_COMMIT, /* 150 */
2115
2116 /* These are forced failure and success verbs */
2117
2118 OP_FAIL, /* 151 */
2119 OP_ACCEPT, /* 152 */
2120 OP_ASSERT_ACCEPT, /* 153 Used inside assertions */
2121 OP_CLOSE, /* 154 Used before OP_ACCEPT to close open captures */
2122
2123 /* This is used to skip a subpattern with a {0} quantifier */
2124
2125 OP_SKIPZERO, /* 155 */
2126
2127 /* This is not an opcode, but is used to check that tables indexed by opcode
2128 are the correct length, in order to catch updating errors - there have been
2129 some in the past. */
2130
2131 OP_TABLE_LENGTH
2132 };
2133
2134 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2135 definitions that follow must also be updated to match. There are also tables
2136 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
2137
2138
2139 /* This macro defines textual names for all the opcodes. These are used only
2140 for debugging, and some of them are only partial names. The macro is referenced
2141 only in pcre_printint.c, which fills out the full names in many cases (and in
2142 some cases doesn't actually use these names at all). */
2143
2144 #define OP_NAME_LIST \
2145 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
2146 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
2147 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
2148 "extuni", "\\Z", "\\z", \
2149 "^", "^", "$", "$", "char", "chari", "not", "noti", \
2150 "*", "*?", "+", "+?", "?", "??", \
2151 "{", "{", "{", \
2152 "*+","++", "?+", "{", \
2153 "*", "*?", "+", "+?", "?", "??", \
2154 "{", "{", "{", \
2155 "*+","++", "?+", "{", \
2156 "*", "*?", "+", "+?", "?", "??", \
2157 "{", "{", "{", \
2158 "*+","++", "?+", "{", \
2159 "*", "*?", "+", "+?", "?", "??", \
2160 "{", "{", "{", \
2161 "*+","++", "?+", "{", \
2162 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
2163 "*+","++", "?+", "{", \
2164 "*", "*?", "+", "+?", "?", "??", "{", "{", \
2165 "class", "nclass", "xclass", "Ref", "Refi", \
2166 "Recurse", "Callout", \
2167 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
2168 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
2169 "Once", "Once_NC", \
2170 "Bra", "BraPos", "CBra", "CBraPos", \
2171 "Cond", \
2172 "SBra", "SBraPos", "SCBra", "SCBraPos", \
2173 "SCond", \
2174 "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
2175 "Brazero", "Braminzero", "Braposzero", \
2176 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
2177 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
2178 "*ACCEPT", "*ASSERT_ACCEPT", \
2179 "Close", "Skip zero"
2180
2181
2182 /* This macro defines the length of fixed length operations in the compiled
2183 regex. The lengths are used when searching for specific things, and also in the
2184 debugging printing of a compiled regex. We use a macro so that it can be
2185 defined close to the definitions of the opcodes themselves.
2186
2187 As things have been extended, some of these are no longer fixed lenths, but are
2188 minima instead. For example, the length of a single-character repeat may vary
2189 in UTF-8 mode. The code that uses this table must know about such things. */
2190
2191 #define OP_LENGTHS \
2192 1, /* End */ \
2193 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
2194 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
2195 1, 1, 1, /* Any, AllAny, Anybyte */ \
2196 3, 3, /* \P, \p */ \
2197 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
2198 1, /* \X */ \
2199 1, 1, 1, 1, 1, 1, /* \Z, \z, ^, ^M, $, $M */ \
2200 2, /* Char - the minimum length */ \
2201 2, /* Chari - the minimum length */ \
2202 2, /* not */ \
2203 2, /* noti */ \
2204 /* Positive single-char repeats ** These are */ \
2205 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
2206 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto, minupto ** mode */ \
2207 2+IMM2_SIZE, /* exact */ \
2208 2, 2, 2, 2+IMM2_SIZE, /* *+, ++, ?+, upto+ */ \
2209 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
2210 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto I, minupto I */ \
2211 2+IMM2_SIZE, /* exact I */ \
2212 2, 2, 2, 2+IMM2_SIZE, /* *+I, ++I, ?+I, upto+I */ \
2213 /* Negative single-char repeats - only for chars < 256 */ \
2214 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
2215 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto, minupto */ \
2216 2+IMM2_SIZE, /* NOT exact */ \
2217 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *, +, ?, upto */ \
2218 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
2219 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto I, minupto I */ \
2220 2+IMM2_SIZE, /* NOT exact I */ \
2221 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *I, +I, ?I, upto I */ \
2222 /* Positive type repeats */ \
2223 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
2224 2+IMM2_SIZE, 2+IMM2_SIZE, /* Type upto, minupto */ \
2225 2+IMM2_SIZE, /* Type exact */ \
2226 2, 2, 2, 2+IMM2_SIZE, /* Possessive *+, ++, ?+, upto+ */ \
2227 /* Character class & ref repeats */ \
2228 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
2229 1+2*IMM2_SIZE, 1+2*IMM2_SIZE, /* CRRANGE, CRMINRANGE */ \
2230 1+(32/sizeof(pcre_uchar)), /* CLASS */ \
2231 1+(32/sizeof(pcre_uchar)), /* NCLASS */ \
2232 0, /* XCLASS - variable length */ \
2233 1+IMM2_SIZE, /* REF */ \
2234 1+IMM2_SIZE, /* REFI */ \
2235 1+LINK_SIZE, /* RECURSE */ \
2236 2+2*LINK_SIZE, /* CALLOUT */ \
2237 1+LINK_SIZE, /* Alt */ \
2238 1+LINK_SIZE, /* Ket */ \
2239 1+LINK_SIZE, /* KetRmax */ \
2240 1+LINK_SIZE, /* KetRmin */ \
2241 1+LINK_SIZE, /* KetRpos */ \
2242 1+LINK_SIZE, /* Reverse */ \
2243 1+LINK_SIZE, /* Assert */ \
2244 1+LINK_SIZE, /* Assert not */ \
2245 1+LINK_SIZE, /* Assert behind */ \
2246 1+LINK_SIZE, /* Assert behind not */ \
2247 1+LINK_SIZE, /* ONCE */ \
2248 1+LINK_SIZE, /* ONCE_NC */ \
2249 1+LINK_SIZE, /* BRA */ \
2250 1+LINK_SIZE, /* BRAPOS */ \
2251 1+LINK_SIZE+IMM2_SIZE, /* CBRA */ \
2252 1+LINK_SIZE+IMM2_SIZE, /* CBRAPOS */ \
2253 1+LINK_SIZE, /* COND */ \
2254 1+LINK_SIZE, /* SBRA */ \
2255 1+LINK_SIZE, /* SBRAPOS */ \
2256 1+LINK_SIZE+IMM2_SIZE, /* SCBRA */ \
2257 1+LINK_SIZE+IMM2_SIZE, /* SCBRAPOS */ \
2258 1+LINK_SIZE, /* SCOND */ \
2259 1+IMM2_SIZE, 1+IMM2_SIZE, /* CREF, NCREF */ \
2260 1+IMM2_SIZE, 1+IMM2_SIZE, /* RREF, NRREF */ \
2261 1, /* DEF */ \
2262 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
2263 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
2264 1, 3, /* SKIP, SKIP_ARG */ \
2265 1, 3, /* THEN, THEN_ARG */ \
2266 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
2267 1+IMM2_SIZE, 1 /* CLOSE, SKIPZERO */
2268
2269 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2270 condition. */
2271
2272 #define RREF_ANY 0xffff
2273
2274 /* Compile time error code numbers. They are given names so that they can more
2275 easily be tracked. When a new number is added, the table called eint in
2276 pcreposix.c must be updated. */
2277
2278 enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
2279 ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2280 ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2281 ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2282 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2283 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2284 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2285 ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERRCOUNT };
2286
2287 /* JIT compiling modes. The function list is indexed by them. */
2288 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2289 JIT_NUMBER_OF_COMPILE_MODES };
2290
2291 /* The real format of the start of the pcre block; the index of names and the
2292 code vector run on as long as necessary after the end. We store an explicit
2293 offset to the name table so that if a regex is compiled on one host, saved, and
2294 then run on another where the size of pointers is different, all might still
2295 be well. For the case of compiled-on-4 and run-on-8, we include an extra
2296 pointer that is always NULL. For future-proofing, a few dummy fields were
2297 originally included - even though you can never get this planning right - but
2298 there is only one left now.
2299
2300 NOTE NOTE NOTE:
2301 Because people can now save and re-use compiled patterns, any additions to this
2302 structure should be made at the end, and something earlier (e.g. a new
2303 flag in the options or one of the dummy fields) should indicate that the new
2304 fields are present. Currently PCRE always sets the dummy fields to zero.
2305 NOTE NOTE NOTE
2306 */
2307
2308 #if defined COMPILE_PCRE8
2309 #define REAL_PCRE real_pcre
2310 #elif defined COMPILE_PCRE16
2311 #define REAL_PCRE real_pcre16
2312 #elif defined COMPILE_PCRE32
2313 #define REAL_PCRE real_pcre32
2314 #endif
2315
2316 /* It is necessary to fork the struct for 32 bit, since it needs to use
2317 * pcre_uchar for first_char and req_char. Can't put an ifdef inside the
2318 * typedef since pcretest needs access to the struct of the 8-, 16-
2319 * and 32-bit variants. */
2320
2321 typedef struct real_pcre8_or_16 {
2322 pcre_uint32 magic_number;
2323 pcre_uint32 size; /* Total that was malloced */
2324 pcre_uint32 options; /* Public options */
2325 pcre_uint16 flags; /* Private flags */
2326 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2327 pcre_uint16 top_bracket; /* Highest numbered group */
2328 pcre_uint16 top_backref; /* Highest numbered back reference */
2329 pcre_uint16 first_char; /* Starting character */
2330 pcre_uint16 req_char; /* This character must be seen */
2331 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2332 pcre_uint16 name_entry_size; /* Size of any name items */
2333 pcre_uint16 name_count; /* Number of name items */
2334 pcre_uint16 ref_count; /* Reference count */
2335 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2336 const pcre_uint8 *nullpad; /* NULL padding */
2337 } real_pcre8_or_16;
2338
2339 typedef struct real_pcre8_or_16 real_pcre;
2340 typedef struct real_pcre8_or_16 real_pcre16;
2341
2342 typedef struct real_pcre32 {
2343 pcre_uint32 magic_number;
2344 pcre_uint32 size; /* Total that was malloced */
2345 pcre_uint32 options; /* Public options */
2346 pcre_uint16 flags; /* Private flags */
2347 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2348 pcre_uint16 top_bracket; /* Highest numbered group */
2349 pcre_uint16 top_backref; /* Highest numbered back reference */
2350 pcre_uint32 first_char; /* Starting character */
2351 pcre_uint32 req_char; /* This character must be seen */
2352 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2353 pcre_uint16 name_entry_size; /* Size of any name items */
2354 pcre_uint16 name_count; /* Number of name items */
2355 pcre_uint16 ref_count; /* Reference count */
2356 pcre_uint16 dummy1; /* for later expansion */
2357 pcre_uint16 dummy2; /* for later expansion */
2358 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2359 void *nullpad; /* for later expansion */
2360 } real_pcre32;
2361
2362 /* Assert that the size of REAL_PCRE is divisible by 8 */
2363 typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2364
2365 /* Needed in pcretest to access some fields in the real_pcre* structures
2366 * directly. They're unified for 8/16/32 bits since the structs only differ
2367 * after these fields; if that ever changes, need to fork those defines into
2368 * 8/16 and 32 bit versions. */
2369 #define REAL_PCRE_MAGIC(re) (((REAL_PCRE*)re)->magic_number)
2370 #define REAL_PCRE_SIZE(re) (((REAL_PCRE*)re)->size)
2371 #define REAL_PCRE_OPTIONS(re) (((REAL_PCRE*)re)->options)
2372 #define REAL_PCRE_FLAGS(re) (((REAL_PCRE*)re)->flags)
2373
2374 /* The format of the block used to store data from pcre_study(). The same
2375 remark (see NOTE above) about extending this structure applies. */
2376
2377 typedef struct pcre_study_data {
2378 pcre_uint32 size; /* Total that was malloced */
2379 pcre_uint32 flags; /* Private flags */
2380 pcre_uint8 start_bits[32]; /* Starting char bits */
2381 pcre_uint32 minlength; /* Minimum subject length */
2382 } pcre_study_data;
2383
2384 /* Structure for building a chain of open capturing subpatterns during
2385 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2386 encountered. This is also used to identify subpatterns that contain recursive
2387 back references to themselves, so that they can be made atomic. */
2388
2389 typedef struct open_capitem {
2390 struct open_capitem *next; /* Chain link */
2391 pcre_uint16 number; /* Capture number */
2392 pcre_uint16 flag; /* Set TRUE if recursive back ref */
2393 } open_capitem;
2394
2395 /* Structure for passing "static" information around between the functions
2396 doing the compiling, so that they are thread-safe. */
2397
2398 typedef struct compile_data {
2399 const pcre_uint8 *lcc; /* Points to lower casing table */
2400 const pcre_uint8 *fcc; /* Points to case-flipping table */
2401 const pcre_uint8 *cbits; /* Points to character type table */
2402 const pcre_uint8 *ctypes; /* Points to table of type maps */
2403 const pcre_uchar *start_workspace;/* The start of working space */
2404 const pcre_uchar *start_code; /* The start of the compiled code */
2405 const pcre_uchar *start_pattern; /* The start of the pattern */
2406 const pcre_uchar *end_pattern; /* The end of the pattern */
2407 open_capitem *open_caps; /* Chain of open capture items */
2408 pcre_uchar *hwm; /* High watermark of workspace */
2409 pcre_uchar *name_table; /* The name/number table */
2410 int names_found; /* Number of entries so far */
2411 int name_entry_size; /* Size of each entry */
2412 int workspace_size; /* Size of workspace */
2413 unsigned int bracount; /* Count of capturing parens as we compile */
2414 int final_bracount; /* Saved value after first pass */
2415 int max_lookbehind; /* Maximum lookbehind (characters) */
2416 int top_backref; /* Maximum back reference */
2417 unsigned int backref_map; /* Bitmap of low back refs */
2418 int assert_depth; /* Depth of nested assertions */
2419 int external_options; /* External (initial) options */
2420 int external_flags; /* External flag bits to be set */
2421 int req_varyopt; /* "After variable item" flag for reqbyte */
2422 BOOL had_accept; /* (*ACCEPT) encountered */
2423 BOOL had_pruneorskip; /* (*PRUNE) or (*SKIP) encountered */
2424 BOOL check_lookbehind; /* Lookbehinds need later checking */
2425 int nltype; /* Newline type */
2426 int nllen; /* Newline string length */
2427 pcre_uchar nl[4]; /* Newline string when fixed length */
2428 } compile_data;
2429
2430 /* Structure for maintaining a chain of pointers to the currently incomplete
2431 branches, for testing for left recursion while compiling. */
2432
2433 typedef struct branch_chain {
2434 struct branch_chain *outer;
2435 pcre_uchar *current_branch;
2436 } branch_chain;
2437
2438 /* Structure for items in a linked list that represents an explicit recursive
2439 call within the pattern; used by pcre_exec(). */
2440
2441 typedef struct recursion_info {
2442 struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2443 unsigned int group_num; /* Number of group that was called */
2444 int *offset_save; /* Pointer to start of saved offsets */
2445 int saved_max; /* Number of saved offsets */
2446 PCRE_PUCHAR subject_position; /* Position at start of recursion */
2447 } recursion_info;
2448
2449 /* A similar structure for pcre_dfa_exec(). */
2450
2451 typedef struct dfa_recursion_info {
2452 struct dfa_recursion_info *prevrec;
2453 int group_num;
2454 PCRE_PUCHAR subject_position;
2455 } dfa_recursion_info;
2456
2457 /* Structure for building a chain of data for holding the values of the subject
2458 pointer at the start of each subpattern, so as to detect when an empty string
2459 has been matched by a subpattern - to break infinite loops; used by
2460 pcre_exec(). */
2461
2462 typedef struct eptrblock {
2463 struct eptrblock *epb_prev;
2464 PCRE_PUCHAR epb_saved_eptr;
2465 } eptrblock;
2466
2467
2468 /* Structure for passing "static" information around between the functions
2469 doing traditional NFA matching, so that they are thread-safe. */
2470
2471 typedef struct match_data {
2472 unsigned long int match_call_count; /* As it says */
2473 unsigned long int match_limit; /* As it says */
2474 unsigned long int match_limit_recursion; /* As it says */
2475 int *offset_vector; /* Offset vector */
2476 int offset_end; /* One past the end */
2477 int offset_max; /* The maximum usable for return data */
2478 int nltype; /* Newline type */
2479 int nllen; /* Newline string length */
2480 int name_count; /* Number of names in name table */
2481 int name_entry_size; /* Size of entry in names table */
2482 pcre_uchar *name_table; /* Table of names */
2483 pcre_uchar nl[4]; /* Newline string when fixed */
2484 const pcre_uint8 *lcc; /* Points to lower casing table */
2485 const pcre_uint8 *fcc; /* Points to case-flipping table */
2486 const pcre_uint8 *ctypes; /* Points to table of type maps */
2487 BOOL offset_overflow; /* Set if too many extractions */
2488 BOOL notbol; /* NOTBOL flag */
2489 BOOL noteol; /* NOTEOL flag */
2490 BOOL utf; /* UTF-8 / UTF-16 flag */
2491 BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
2492 BOOL use_ucp; /* PCRE_UCP flag */
2493 BOOL endonly; /* Dollar not before final \n */
2494 BOOL notempty; /* Empty string match not wanted */
2495 BOOL notempty_atstart; /* Empty string match at start not wanted */
2496 BOOL hitend; /* Hit the end of the subject at some point */
2497 BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
2498 BOOL hasthen; /* Pattern contains (*THEN) */
2499 BOOL ignore_skip_arg; /* For re-run when SKIP name not found */
2500 const pcre_uchar *start_code; /* For use when recursing */
2501 PCRE_PUCHAR start_subject; /* Start of the subject string */
2502 PCRE_PUCHAR end_subject; /* End of the subject string */
2503 PCRE_PUCHAR start_match_ptr; /* Start of matched string */
2504 PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
2505 PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
2506 int partial; /* PARTIAL options */
2507 int end_offset_top; /* Highwater mark at end of match */
2508 int capture_last; /* Most recent capture number */
2509 int start_offset; /* The start offset value */
2510 int match_function_type; /* Set for certain special calls of MATCH() */
2511 eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
2512 int eptrn; /* Next free eptrblock */
2513 recursion_info *recursive; /* Linked list of recursion data */
2514 void *callout_data; /* To pass back to callouts */
2515 const pcre_uchar *mark; /* Mark pointer to pass back on success */
2516 const pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2517 const pcre_uchar *once_target; /* Where to back up to for atomic groups */
2518 #ifdef NO_RECURSE
2519 void *match_frames_base; /* For remembering malloc'd frames */
2520 #endif
2521 } match_data;
2522
2523 /* A similar structure is used for the same purpose by the DFA matching
2524 functions. */
2525
2526 typedef struct dfa_match_data {
2527 const pcre_uchar *start_code; /* Start of the compiled pattern */
2528 const pcre_uchar *start_subject ; /* Start of the subject string */
2529 const pcre_uchar *end_subject; /* End of subject string */
2530 const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2531 const pcre_uint8 *tables; /* Character tables */
2532 int start_offset; /* The start offset value */
2533 int moptions; /* Match options */
2534 int poptions; /* Pattern options */
2535 int nltype; /* Newline type */
2536 int nllen; /* Newline string length */
2537 pcre_uchar nl[4]; /* Newline string when fixed */
2538 void *callout_data; /* To pass back to callouts */
2539 dfa_recursion_info *recursive; /* Linked list of recursion data */
2540 } dfa_match_data;
2541
2542 /* Bit definitions for entries in the pcre_ctypes table. */
2543
2544 #define ctype_space 0x01
2545 #define ctype_letter 0x02
2546 #define ctype_digit 0x04
2547 #define ctype_xdigit 0x08
2548 #define ctype_word 0x10 /* alphanumeric or '_' */
2549 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
2550
2551 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2552 of bits for a class map. Some classes are built by combining these tables. */
2553
2554 #define cbit_space 0 /* [:space:] or \s */
2555 #define cbit_xdigit 32 /* [:xdigit:] */
2556 #define cbit_digit 64 /* [:digit:] or \d */
2557 #define cbit_upper 96 /* [:upper:] */
2558 #define cbit_lower 128 /* [:lower:] */
2559 #define cbit_word 160 /* [:word:] or \w */
2560 #define cbit_graph 192 /* [:graph:] */
2561 #define cbit_print 224 /* [:print:] */
2562 #define cbit_punct 256 /* [:punct:] */
2563 #define cbit_cntrl 288 /* [:cntrl:] */
2564 #define cbit_length 320 /* Length of the cbits table */
2565
2566 /* Offsets of the various tables from the base tables pointer, and
2567 total length. */
2568
2569 #define lcc_offset 0
2570 #define fcc_offset 256
2571 #define cbits_offset 512
2572 #define ctypes_offset (cbits_offset + cbit_length)
2573 #define tables_length (ctypes_offset + 256)
2574
2575 /* Internal function and data prefixes. */
2576
2577 #if defined COMPILE_PCRE8
2578 #ifndef PUBL
2579 #define PUBL(name) pcre_##name
2580 #endif
2581 #ifndef PRIV
2582 #define PRIV(name) _pcre_##name
2583 #endif
2584 #elif defined COMPILE_PCRE16
2585 #ifndef PUBL
2586 #define PUBL(name) pcre16_##name
2587 #endif
2588 #ifndef PRIV
2589 #define PRIV(name) _pcre16_##name
2590 #endif
2591 #elif defined COMPILE_PCRE32
2592 #ifndef PUBL
2593 #define PUBL(name) pcre32_##name
2594 #endif
2595 #ifndef PRIV
2596 #define PRIV(name) _pcre32_##name
2597 #endif
2598 #else
2599 #error Unsupported compiling mode
2600 #endif /* COMPILE_PCRE[8|16|32] */
2601
2602 /* Layout of the UCP type table that translates property names into types and
2603 codes. Each entry used to point directly to a name, but to reduce the number of
2604 relocations in shared libraries, it now has an offset into a single string
2605 instead. */
2606
2607 typedef struct {
2608 pcre_uint16 name_offset;
2609 pcre_uint16 type;
2610 pcre_uint16 value;
2611 } ucp_type_table;
2612
2613
2614 /* Internal shared data tables. These are tables that are used by more than one
2615 of the exported public functions. They have to be "external" in the C sense,
2616 but are not part of the PCRE public API. The data for these tables is in the
2617 pcre_tables.c module. */
2618
2619 #ifdef COMPILE_PCRE8
2620 extern const int PRIV(utf8_table1)[];
2621 extern const int PRIV(utf8_table1_size);
2622 extern const int PRIV(utf8_table2)[];
2623 extern const int PRIV(utf8_table3)[];
2624 extern const pcre_uint8 PRIV(utf8_table4)[];
2625 #endif /* COMPILE_PCRE8 */
2626
2627 extern const char PRIV(utt_names)[];
2628 extern const ucp_type_table PRIV(utt)[];
2629 extern const int PRIV(utt_size);
2630
2631 extern const pcre_uint8 PRIV(OP_lengths)[];
2632 extern const pcre_uint8 PRIV(default_tables)[];
2633
2634 extern const pcre_uint32 PRIV(hspace_list)[];
2635 extern const pcre_uint32 PRIV(vspace_list)[];
2636
2637
2638 /* Internal shared functions. These are functions that are used by more than
2639 one of the exported public functions. They have to be "external" in the C
2640 sense, but are not part of the PCRE public API. */
2641
2642 /* String comparison functions. */
2643 #if defined COMPILE_PCRE8
2644
2645 #define STRCMP_UC_UC(str1, str2) \
2646 strcmp((char *)(str1), (char *)(str2))
2647 #define STRCMP_UC_C8(str1, str2) \
2648 strcmp((char *)(str1), (str2))
2649 #define STRNCMP_UC_UC(str1, str2, num) \
2650 strncmp((char *)(str1), (char *)(str2), (num))
2651 #define STRNCMP_UC_C8(str1, str2, num) \
2652 strncmp((char *)(str1), (str2), (num))
2653 #define STRLEN_UC(str) strlen((const char *)str)
2654
2655 #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2656
2657 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2658 const pcre_uchar *);
2659 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2660 const char *);
2661 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2662 const pcre_uchar *, unsigned int num);
2663 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2664 const char *, unsigned int num);
2665 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2666
2667 #define STRCMP_UC_UC(str1, str2) \
2668 PRIV(strcmp_uc_uc)((str1), (str2))
2669 #define STRCMP_UC_C8(str1, str2) \
2670 PRIV(strcmp_uc_c8)((str1), (str2))
2671 #define STRNCMP_UC_UC(str1, str2, num) \
2672 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2673 #define STRNCMP_UC_C8(str1, str2, num) \
2674 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2675 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2676
2677 #endif /* COMPILE_PCRE[8|16|32] */
2678
2679 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
2680
2681 #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
2682 #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
2683
2684 #elif defined COMPILE_PCRE32
2685
2686 extern int PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
2687 const pcre_uchar *);
2688 extern int PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
2689 const char *);
2690
2691 #define STRCMP_UC_UC_TEST(str1, str2) \
2692 (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
2693 #define STRCMP_UC_C8_TEST(str1, str2) \
2694 (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
2695
2696 #endif /* COMPILE_PCRE[8|16|32] */
2697
2698 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2699 extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2700 int *, BOOL);
2701 extern unsigned int PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2702 extern int PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2703 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2704 int *, BOOL);
2705 extern BOOL PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
2706
2707 #ifdef SUPPORT_JIT
2708 extern void PRIV(jit_compile)(const REAL_PCRE *,
2709 PUBL(extra) *, int);
2710 extern int PRIV(jit_exec)(const PUBL(extra) *,
2711 const pcre_uchar *, int, int, int, int *, int);
2712 extern void PRIV(jit_free)(void *);
2713 extern int PRIV(jit_get_size)(void *);
2714 extern const char* PRIV(jit_get_target)(void);
2715 #endif
2716
2717 /* Unicode character database (UCD) */
2718
2719 typedef struct {
2720 pcre_uint8 script; /* ucp_Arabic, etc. */
2721 pcre_uint8 chartype; /* ucp_Cc, etc. (general categories) */
2722 pcre_uint8 gbprop; /* ucp_gbControl, etc. (grapheme break property) */
2723 pcre_uint8 caseset; /* offset to multichar other cases or zero */
2724 pcre_int32 other_case; /* offset to other case, or zero if none */
2725 } ucd_record;
2726
2727 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2728 extern const ucd_record PRIV(ucd_records)[];
2729 extern const pcre_uint8 PRIV(ucd_stage1)[];
2730 extern const pcre_uint16 PRIV(ucd_stage2)[];
2731 extern const pcre_uint32 PRIV(ucp_gentype)[];
2732 extern const pcre_uint32 PRIV(ucp_gbtable)[];
2733 #ifdef SUPPORT_JIT
2734 extern const int PRIV(ucp_typerange)[];
2735 #endif
2736
2737 #ifdef SUPPORT_UCP
2738 /* UCD access macros */
2739
2740 #define UCD_BLOCK_SIZE 128
2741 #define GET_UCD(ch) (PRIV(ucd_records) + \
2742 PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
2743 UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
2744
2745 #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2746 #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2747 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2748 #define UCD_GRAPHBREAK(ch) GET_UCD(ch)->gbprop
2749 #define UCD_CASESET(ch) GET_UCD(ch)->caseset
2750 #define UCD_OTHERCASE(ch) ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
2751
2752 #endif /* SUPPORT_UCP */
2753
2754 #endif
2755
2756 /* End of pcre_internal.h */

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