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

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