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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) 1997-2013 University of Cambridge
11
12 -----------------------------------------------------------------------------
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions are met:
15
16 * Redistributions of source code must retain the above copyright notice,
17 this list of conditions and the following disclaimer.
18
19 * Redistributions in binary form must reproduce the above copyright
20 notice, this list of conditions and the following disclaimer in the
21 documentation and/or other materials provided with the distribution.
22
23 * Neither the name of the University of Cambridge nor the names of its
24 contributors may be used to endorse or promote products derived from
25 this software without specific prior written permission.
26
27 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
28 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 POSSIBILITY OF SUCH DAMAGE.
38 -----------------------------------------------------------------------------
39 */
40
41 /* This header contains definitions that are shared between the different
42 modules, but which are not relevant to the exported API. This includes some
43 functions whose names all begin with "_pcre_", "_pcre16_" or "_pcre32_"
44 depending on the PRIV macro. */
45
46 #ifndef PCRE_INTERNAL_H
47 #define PCRE_INTERNAL_H
48
49 /* Define PCRE_DEBUG to get debugging output on stdout. */
50
51 #if 0
52 #define PCRE_DEBUG
53 #endif
54
55 /* PCRE is compiled as an 8 bit library if it is not requested otherwise. */
56
57 #if !defined COMPILE_PCRE16 && !defined COMPILE_PCRE32
58 #define COMPILE_PCRE8
59 #endif
60
61 /* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
62 "configure" script ensures this, but not everybody uses "configure". */
63
64 #if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
65 #define SUPPORT_UTF 1
66 #endif
67
68 /* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
69 reasons with existing code. */
70
71 #if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
72 #define SUPPORT_UTF 1
73 #endif
74
75 /* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
76 Until then we define it if SUPPORT_UTF is defined. */
77
78 #if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
79 #define SUPPORT_UTF8 1
80 #endif
81
82 /* We do not support both EBCDIC and UTF-8/16/32 at the same time. The "configure"
83 script prevents both being selected, but not everybody uses "configure". */
84
85 #if defined EBCDIC && defined SUPPORT_UTF
86 #error The use of both EBCDIC and SUPPORT_UTF is not supported.
87 #endif
88
89 /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
90 inline, and there are *still* stupid compilers about that don't like indented
91 pre-processor statements, or at least there were when I first wrote this. After
92 all, it had only been about 10 years then...
93
94 It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
95 be absolutely sure we get our version. */
96
97 #undef DPRINTF
98 #ifdef PCRE_DEBUG
99 #define DPRINTF(p) printf p
100 #else
101 #define DPRINTF(p) /* Nothing */
102 #endif
103
104
105 /* Standard C headers plus the external interface definition. The only time
106 setjmp and stdarg are used is when NO_RECURSE is set. */
107
108 #include <ctype.h>
109 #include <limits.h>
110 #include <stddef.h>
111 #include <stdio.h>
112 #include <stdlib.h>
113 #include <string.h>
114
115 /* Valgrind (memcheck) support */
116
117 #ifdef SUPPORT_VALGRIND
118 #include <valgrind/memcheck.h>
119 #endif
120
121 /* When compiling a DLL for Windows, the exported symbols have to be declared
122 using some MS magic. I found some useful information on this web page:
123 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
124 information there, using __declspec(dllexport) without "extern" we have a
125 definition; with "extern" we have a declaration. The settings here override the
126 setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
127 which is all that is needed for applications (they just import the symbols). We
128 use:
129
130 PCRE_EXP_DECL for declarations
131 PCRE_EXP_DEFN for definitions of exported functions
132 PCRE_EXP_DATA_DEFN for definitions of exported variables
133
134 The reason for the two DEFN macros is that in non-Windows environments, one
135 does not want to have "extern" before variable definitions because it leads to
136 compiler warnings. So we distinguish between functions and variables. In
137 Windows, the two should always be the same.
138
139 The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
140 which is an application, but needs to import this file in order to "peek" at
141 internals, can #include pcre.h first to get an application's-eye view.
142
143 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
144 special-purpose environments) might want to stick other stuff in front of
145 exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
146 PCRE_EXP_DATA_DEFN only if they are not already set. */
147
148 #ifndef PCRE_EXP_DECL
149 # ifdef _WIN32
150 # ifndef PCRE_STATIC
151 # define PCRE_EXP_DECL extern __declspec(dllexport)
152 # define PCRE_EXP_DEFN __declspec(dllexport)
153 # define PCRE_EXP_DATA_DEFN __declspec(dllexport)
154 # else
155 # define PCRE_EXP_DECL extern
156 # define PCRE_EXP_DEFN
157 # define PCRE_EXP_DATA_DEFN
158 # endif
159 # else
160 # ifdef __cplusplus
161 # define PCRE_EXP_DECL extern "C"
162 # else
163 # define PCRE_EXP_DECL extern
164 # endif
165 # ifndef PCRE_EXP_DEFN
166 # define PCRE_EXP_DEFN PCRE_EXP_DECL
167 # endif
168 # ifndef PCRE_EXP_DATA_DEFN
169 # define PCRE_EXP_DATA_DEFN
170 # endif
171 # endif
172 #endif
173
174 /* When compiling with the MSVC compiler, it is sometimes necessary to include
175 a "calling convention" before exported function names. (This is secondhand
176 information; I know nothing about MSVC myself). For example, something like
177
178 void __cdecl function(....)
179
180 might be needed. In order so make this easy, all the exported functions have
181 PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
182 set, we ensure here that it has no effect. */
183
184 #ifndef PCRE_CALL_CONVENTION
185 #define PCRE_CALL_CONVENTION
186 #endif
187
188 /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
189 cannot determine these outside the compilation (e.g. by running a program as
190 part of "configure") because PCRE is often cross-compiled for use on other
191 systems. Instead we make use of the maximum sizes that are available at
192 preprocessor time in standard C environments. */
193
194 typedef unsigned char pcre_uint8;
195
196 #if USHRT_MAX == 65535
197 typedef unsigned short pcre_uint16;
198 typedef short pcre_int16;
199 #define PCRE_UINT16_MAX USHRT_MAX
200 #define PCRE_INT16_MAX SHRT_MAX
201 #elif UINT_MAX == 65535
202 typedef unsigned int pcre_uint16;
203 typedef int pcre_int16;
204 #define PCRE_UINT16_MAX UINT_MAX
205 #define PCRE_INT16_MAX INT_MAX
206 #else
207 #error Cannot determine a type for 16-bit integers
208 #endif
209
210 #if UINT_MAX == 4294967295U
211 typedef unsigned int pcre_uint32;
212 typedef int pcre_int32;
213 #define PCRE_UINT32_MAX UINT_MAX
214 #define PCRE_INT32_MAX INT_MAX
215 #elif ULONG_MAX == 4294967295UL
216 typedef unsigned long int pcre_uint32;
217 typedef long int pcre_int32;
218 #define PCRE_UINT32_MAX ULONG_MAX
219 #define PCRE_INT32_MAX LONG_MAX
220 #else
221 #error Cannot determine a type for 32-bit integers
222 #endif
223
224 /* When checking for integer overflow in pcre_compile(), we need to handle
225 large integers. If a 64-bit integer type is available, we can use that.
226 Otherwise we have to cast to double, which of course requires floating point
227 arithmetic. Handle this by defining a macro for the appropriate type. If
228 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
229 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
230 by "configure". */
231
232 #if defined HAVE_STDINT_H
233 #include <stdint.h>
234 #elif defined HAVE_INTTYPES_H
235 #include <inttypes.h>
236 #endif
237
238 #if defined INT64_MAX || defined int64_t
239 #define INT64_OR_DOUBLE int64_t
240 #else
241 #define INT64_OR_DOUBLE double
242 #endif
243
244 /* All character handling must be done as unsigned characters. Otherwise there
245 are problems with top-bit-set characters and functions such as isspace().
246 However, we leave the interface to the outside world as char * or short *,
247 because that should make things easier for callers. This character type is
248 called pcre_uchar.
249
250 The IN_UCHARS macro multiply its argument with the byte size of the current
251 pcre_uchar type. Useful for memcpy and such operations, whose require the
252 byte size of their input/output buffers.
253
254 The MAX_255 macro checks whether its pcre_uchar input is less than 256.
255
256 The TABLE_GET macro is designed for accessing elements of tables whose contain
257 exactly 256 items. When the character is able to contain more than 256
258 items, some check is needed before accessing these tables.
259 */
260
261 #if defined COMPILE_PCRE8
262
263 typedef unsigned char pcre_uchar;
264 #define IN_UCHARS(x) (x)
265 #define MAX_255(c) 1
266 #define TABLE_GET(c, table, default) ((table)[c])
267
268 #elif defined COMPILE_PCRE16
269
270 #if USHRT_MAX != 65535
271 /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
272 pcre.h(.in) and disable (comment out) this message. */
273 #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
274 #endif
275
276 typedef pcre_uint16 pcre_uchar;
277 #define UCHAR_SHIFT (1)
278 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
279 #define MAX_255(c) ((c) <= 255u)
280 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
281
282 #elif defined COMPILE_PCRE32
283
284 typedef pcre_uint32 pcre_uchar;
285 #define UCHAR_SHIFT (2)
286 #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
287 #define MAX_255(c) ((c) <= 255u)
288 #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
289
290 #else
291 #error Unsupported compiling mode
292 #endif /* COMPILE_PCRE[8|16|32] */
293
294 /* This is an unsigned int value that no character can ever have. UTF-8
295 characters only go up to 0x7fffffff (though Unicode doesn't go beyond
296 0x0010ffff). */
297
298 #define NOTACHAR 0xffffffff
299
300 /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
301 "any" and "anycrlf" at present). The following macros are used to package up
302 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
303 modules to indicate in which datablock the parameters exist, and what the
304 start/end of string field names are. */
305
306 #define NLTYPE_FIXED 0 /* Newline is a fixed length string */
307 #define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
308 #define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
309
310 /* This macro checks for a newline at the given position */
311
312 #define IS_NEWLINE(p) \
313 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
314 ((p) < NLBLOCK->PSEND && \
315 PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
316 &(NLBLOCK->nllen), utf)) \
317 : \
318 ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
319 RAWUCHARTEST(p) == NLBLOCK->nl[0] && \
320 (NLBLOCK->nllen == 1 || RAWUCHARTEST(p+1) == NLBLOCK->nl[1]) \
321 ) \
322 )
323
324 /* This macro checks for a newline immediately preceding the given position */
325
326 #define WAS_NEWLINE(p) \
327 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
328 ((p) > NLBLOCK->PSSTART && \
329 PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
330 &(NLBLOCK->nllen), utf)) \
331 : \
332 ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
333 RAWUCHARTEST(p - NLBLOCK->nllen) == NLBLOCK->nl[0] && \
334 (NLBLOCK->nllen == 1 || RAWUCHARTEST(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
335 ) \
336 )
337
338 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
339 with a custom type. This makes it possible, for example, to allow pcre_exec()
340 to process subject strings that are discontinuous by using a smart pointer
341 class. It must always be possible to inspect all of the subject string in
342 pcre_exec() because of the way it backtracks. Two macros are required in the
343 normal case, for sign-unspecified and unsigned char pointers. The former is
344 used for the external interface and appears in pcre.h, which is why its name
345 must begin with PCRE_. */
346
347 #ifdef CUSTOM_SUBJECT_PTR
348 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
349 #else
350 #define PCRE_PUCHAR const pcre_uchar *
351 #endif
352
353 /* Include the public PCRE header and the definitions of UCP character property
354 values. */
355
356 #include "pcre.h"
357 #include "ucp.h"
358
359 #ifdef COMPILE_PCRE32
360 /* Assert that the public PCRE_UCHAR32 is a 32-bit type */
361 typedef int __assert_pcre_uchar32_size[sizeof(PCRE_UCHAR32) == 4 ? 1 : -1];
362 #endif
363
364 /* When compiling for use with the Virtual Pascal compiler, these functions
365 need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
366 option on the command line. */
367
368 #ifdef VPCOMPAT
369 #define strlen(s) _strlen(s)
370 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
371 #define memcmp(s,c,n) _memcmp(s,c,n)
372 #define memcpy(d,s,n) _memcpy(d,s,n)
373 #define memmove(d,s,n) _memmove(d,s,n)
374 #define memset(s,c,n) _memset(s,c,n)
375 #else /* VPCOMPAT */
376
377 /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
378 define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
379 is set. Otherwise, include an emulating function for those systems that have
380 neither (there some non-Unix environments where this is the case). */
381
382 #ifndef HAVE_MEMMOVE
383 #undef memmove /* some systems may have a macro */
384 #ifdef HAVE_BCOPY
385 #define memmove(a, b, c) bcopy(b, a, c)
386 #else /* HAVE_BCOPY */
387 static void *
388 pcre_memmove(void *d, const void *s, size_t n)
389 {
390 size_t i;
391 unsigned char *dest = (unsigned char *)d;
392 const unsigned char *src = (const unsigned char *)s;
393 if (dest > src)
394 {
395 dest += n;
396 src += n;
397 for (i = 0; i < n; ++i) *(--dest) = *(--src);
398 return (void *)dest;
399 }
400 else
401 {
402 for (i = 0; i < n; ++i) *dest++ = *src++;
403 return (void *)(dest - n);
404 }
405 }
406 #define memmove(a, b, c) pcre_memmove(a, b, c)
407 #endif /* not HAVE_BCOPY */
408 #endif /* not HAVE_MEMMOVE */
409 #endif /* not VPCOMPAT */
410
411
412 /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
413 in big-endian order) by default. These are used, for example, to link from the
414 start of a subpattern to its alternatives and its end. The use of 2 bytes per
415 offset limits the size of the compiled regex to around 64K, which is big enough
416 for almost everybody. However, I received a request for an even bigger limit.
417 For this reason, and also to make the code easier to maintain, the storing and
418 loading of offsets from the byte string is now handled by the macros that are
419 defined here.
420
421 The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
422 the config.h file, but can be overridden by using -D on the command line. This
423 is automated on Unix systems via the "configure" command. */
424
425 #if defined COMPILE_PCRE8
426
427 #if LINK_SIZE == 2
428
429 #define PUT(a,n,d) \
430 (a[n] = (d) >> 8), \
431 (a[(n)+1] = (d) & 255)
432
433 #define GET(a,n) \
434 (((a)[n] << 8) | (a)[(n)+1])
435
436 #define MAX_PATTERN_SIZE (1 << 16)
437
438
439 #elif LINK_SIZE == 3
440
441 #define PUT(a,n,d) \
442 (a[n] = (d) >> 16), \
443 (a[(n)+1] = (d) >> 8), \
444 (a[(n)+2] = (d) & 255)
445
446 #define GET(a,n) \
447 (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
448
449 #define MAX_PATTERN_SIZE (1 << 24)
450
451
452 #elif LINK_SIZE == 4
453
454 #define PUT(a,n,d) \
455 (a[n] = (d) >> 24), \
456 (a[(n)+1] = (d) >> 16), \
457 (a[(n)+2] = (d) >> 8), \
458 (a[(n)+3] = (d) & 255)
459
460 #define GET(a,n) \
461 (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
462
463 /* Keep it positive */
464 #define MAX_PATTERN_SIZE (1 << 30)
465
466 #else
467 #error LINK_SIZE must be either 2, 3, or 4
468 #endif
469
470 #elif defined COMPILE_PCRE16
471
472 #if LINK_SIZE == 2
473
474 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
475 #undef LINK_SIZE
476 #define LINK_SIZE 1
477
478 #define PUT(a,n,d) \
479 (a[n] = (d))
480
481 #define GET(a,n) \
482 (a[n])
483
484 #define MAX_PATTERN_SIZE (1 << 16)
485
486 #elif LINK_SIZE == 3 || LINK_SIZE == 4
487
488 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
489 #undef LINK_SIZE
490 #define LINK_SIZE 2
491
492 #define PUT(a,n,d) \
493 (a[n] = (d) >> 16), \
494 (a[(n)+1] = (d) & 65535)
495
496 #define GET(a,n) \
497 (((a)[n] << 16) | (a)[(n)+1])
498
499 /* Keep it positive */
500 #define MAX_PATTERN_SIZE (1 << 30)
501
502 #else
503 #error LINK_SIZE must be either 2, 3, or 4
504 #endif
505
506 #elif defined COMPILE_PCRE32
507
508 /* Only supported LINK_SIZE is 4 */
509 /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
510 #undef LINK_SIZE
511 #define LINK_SIZE 1
512
513 #define PUT(a,n,d) \
514 (a[n] = (d))
515
516 #define GET(a,n) \
517 (a[n])
518
519 /* Keep it positive */
520 #define MAX_PATTERN_SIZE (1 << 30)
521
522 #else
523 #error Unsupported compiling mode
524 #endif /* COMPILE_PCRE[8|16|32] */
525
526 /* Convenience macro defined in terms of the others */
527
528 #define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
529
530
531 /* PCRE uses some other 2-byte quantities that do not change when the size of
532 offsets changes. There are used for repeat counts and for other things such as
533 capturing parenthesis numbers in back references. */
534
535 #if defined COMPILE_PCRE8
536
537 #define IMM2_SIZE 2
538
539 #define PUT2(a,n,d) \
540 a[n] = (d) >> 8; \
541 a[(n)+1] = (d) & 255
542
543 /* For reasons that I do not understand, the expression in this GET2 macro is
544 treated by gcc as a signed expression, even when a is declared as unsigned. It
545 seems that any kind of arithmetic results in a signed value. */
546
547 #define GET2(a,n) \
548 (unsigned int)(((a)[n] << 8) | (a)[(n)+1])
549
550 #elif defined COMPILE_PCRE16
551
552 #define IMM2_SIZE 1
553
554 #define PUT2(a,n,d) \
555 a[n] = d
556
557 #define GET2(a,n) \
558 a[n]
559
560 #elif defined COMPILE_PCRE32
561
562 #define IMM2_SIZE 1
563
564 #define PUT2(a,n,d) \
565 a[n] = d
566
567 #define GET2(a,n) \
568 a[n]
569
570 #else
571 #error Unsupported compiling mode
572 #endif /* COMPILE_PCRE[8|16|32] */
573
574 #define PUT2INC(a,n,d) PUT2(a,n,d), a += IMM2_SIZE
575
576 /* The maximum length of a MARK name is currently one data unit; it may be
577 changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
578
579 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
580 #define MAX_MARK ((1u << 16) - 1)
581 #else
582 #define MAX_MARK ((1u << 8) - 1)
583 #endif
584
585 /* When UTF encoding is being used, a character is no longer just a single
586 byte. The macros for character handling generate simple sequences when used in
587 character-mode, and more complicated ones for UTF characters. GETCHARLENTEST
588 and other macros are not used when UTF is not supported, so they are not
589 defined. To make sure they can never even appear when UTF support is omitted,
590 we don't even define them. */
591
592 #ifndef SUPPORT_UTF
593
594 /* #define MAX_VALUE_FOR_SINGLE_CHAR */
595 /* #define HAS_EXTRALEN(c) */
596 /* #define GET_EXTRALEN(c) */
597 /* #define NOT_FIRSTCHAR(c) */
598 #define GETCHAR(c, eptr) c = *eptr;
599 #define GETCHARTEST(c, eptr) c = *eptr;
600 #define GETCHARINC(c, eptr) c = *eptr++;
601 #define GETCHARINCTEST(c, eptr) c = *eptr++;
602 #define GETCHARLEN(c, eptr, len) c = *eptr;
603 #define RAWUCHAR(eptr) (*(eptr))
604 #define RAWUCHARINC(eptr) (*(eptr)++)
605 #define RAWUCHARTEST(eptr) (*(eptr))
606 #define RAWUCHARINCTEST(eptr) (*(eptr)++)
607 /* #define GETCHARLENTEST(c, eptr, len) */
608 /* #define BACKCHAR(eptr) */
609 /* #define FORWARDCHAR(eptr) */
610 /* #define ACROSSCHAR(condition, eptr, action) */
611
612 #else /* SUPPORT_UTF */
613
614 /* Tests whether the code point needs extra characters to decode. */
615
616 #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
617
618 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
619 advancing the pointer. */
620
621 #define GETUTF8(c, eptr) \
622 { \
623 if ((c & 0x20) == 0) \
624 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
625 else if ((c & 0x10) == 0) \
626 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
627 else if ((c & 0x08) == 0) \
628 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
629 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
630 else if ((c & 0x04) == 0) \
631 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
632 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
633 (eptr[4] & 0x3f); \
634 else \
635 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
636 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
637 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
638 }
639
640 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
641 the pointer. */
642
643 #define GETUTF8INC(c, eptr) \
644 { \
645 if ((c & 0x20) == 0) \
646 c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
647 else if ((c & 0x10) == 0) \
648 { \
649 c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
650 eptr += 2; \
651 } \
652 else if ((c & 0x08) == 0) \
653 { \
654 c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
655 ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
656 eptr += 3; \
657 } \
658 else if ((c & 0x04) == 0) \
659 { \
660 c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
661 ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
662 (eptr[3] & 0x3f); \
663 eptr += 4; \
664 } \
665 else \
666 { \
667 c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
668 ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
669 ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
670 eptr += 5; \
671 } \
672 }
673
674 #if defined COMPILE_PCRE8
675
676 /* These macros were originally written in the form of loops that used data
677 from the tables whose names start with PRIV(utf8_table). They were rewritten by
678 a user so as not to use loops, because in some environments this gives a
679 significant performance advantage, and it seems never to do any harm. */
680
681 /* Tells the biggest code point which can be encoded as a single character. */
682
683 #define MAX_VALUE_FOR_SINGLE_CHAR 127
684
685 /* Tests whether the code point needs extra characters to decode. */
686
687 #define HAS_EXTRALEN(c) ((c) >= 0xc0)
688
689 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
690 Otherwise it has an undefined behaviour. */
691
692 #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
693
694 /* Returns TRUE, if the given character is not the first character
695 of a UTF sequence. */
696
697 #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
698
699 /* Get the next UTF-8 character, not advancing the pointer. This is called when
700 we know we are in UTF-8 mode. */
701
702 #define GETCHAR(c, eptr) \
703 c = *eptr; \
704 if (c >= 0xc0) GETUTF8(c, eptr);
705
706 /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
707 pointer. */
708
709 #define GETCHARTEST(c, eptr) \
710 c = *eptr; \
711 if (utf && c >= 0xc0) GETUTF8(c, eptr);
712
713 /* Get the next UTF-8 character, advancing the pointer. This is called when we
714 know we are in UTF-8 mode. */
715
716 #define GETCHARINC(c, eptr) \
717 c = *eptr++; \
718 if (c >= 0xc0) GETUTF8INC(c, eptr);
719
720 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
721 This is called when we don't know if we are in UTF-8 mode. */
722
723 #define GETCHARINCTEST(c, eptr) \
724 c = *eptr++; \
725 if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
726
727 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
728 advancing the pointer, incrementing the length. */
729
730 #define GETUTF8LEN(c, eptr, len) \
731 { \
732 if ((c & 0x20) == 0) \
733 { \
734 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
735 len++; \
736 } \
737 else if ((c & 0x10) == 0) \
738 { \
739 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
740 len += 2; \
741 } \
742 else if ((c & 0x08) == 0) \
743 {\
744 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
745 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
746 len += 3; \
747 } \
748 else if ((c & 0x04) == 0) \
749 { \
750 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
751 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
752 (eptr[4] & 0x3f); \
753 len += 4; \
754 } \
755 else \
756 {\
757 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
758 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
759 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
760 len += 5; \
761 } \
762 }
763
764 /* Get the next UTF-8 character, not advancing the pointer, incrementing length
765 if there are extra bytes. This is called when we know we are in UTF-8 mode. */
766
767 #define GETCHARLEN(c, eptr, len) \
768 c = *eptr; \
769 if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
770
771 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
772 pointer, incrementing length if there are extra bytes. This is called when we
773 do not know if we are in UTF-8 mode. */
774
775 #define GETCHARLENTEST(c, eptr, len) \
776 c = *eptr; \
777 if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
778
779 /* Returns the next uchar, not advancing the pointer. This is called when
780 we know we are in UTF mode. */
781
782 #define RAWUCHAR(eptr) \
783 (*(eptr))
784
785 /* Returns the next uchar, advancing the pointer. This is called when
786 we know we are in UTF mode. */
787
788 #define RAWUCHARINC(eptr) \
789 (*((eptr)++))
790
791 /* Returns the next uchar, testing for UTF mode, and not advancing the
792 pointer. */
793
794 #define RAWUCHARTEST(eptr) \
795 (*(eptr))
796
797 /* Returns the next uchar, testing for UTF mode, advancing the
798 pointer. */
799
800 #define RAWUCHARINCTEST(eptr) \
801 (*((eptr)++))
802
803 /* If the pointer is not at the start of a character, move it back until
804 it is. This is called only in UTF-8 mode - we don't put a test within the macro
805 because almost all calls are already within a block of UTF-8 only code. */
806
807 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
808
809 /* Same as above, just in the other direction. */
810 #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
811
812 /* Same as above, but it allows a fully customizable form. */
813 #define ACROSSCHAR(condition, eptr, action) \
814 while((condition) && ((eptr) & 0xc0) == 0x80) action
815
816 #elif defined COMPILE_PCRE16
817
818 /* Tells the biggest code point which can be encoded as a single character. */
819
820 #define MAX_VALUE_FOR_SINGLE_CHAR 65535
821
822 /* Tests whether the code point needs extra characters to decode. */
823
824 #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
825
826 /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
827 Otherwise it has an undefined behaviour. */
828
829 #define GET_EXTRALEN(c) 1
830
831 /* Returns TRUE, if the given character is not the first character
832 of a UTF sequence. */
833
834 #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
835
836 /* Base macro to pick up the low surrogate of a UTF-16 character, not
837 advancing the pointer. */
838
839 #define GETUTF16(c, eptr) \
840 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
841
842 /* Get the next UTF-16 character, not advancing the pointer. This is called when
843 we know we are in UTF-16 mode. */
844
845 #define GETCHAR(c, eptr) \
846 c = *eptr; \
847 if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
848
849 /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
850 pointer. */
851
852 #define GETCHARTEST(c, eptr) \
853 c = *eptr; \
854 if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
855
856 /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
857 the pointer. */
858
859 #define GETUTF16INC(c, eptr) \
860 { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
861
862 /* Get the next UTF-16 character, advancing the pointer. This is called when we
863 know we are in UTF-16 mode. */
864
865 #define GETCHARINC(c, eptr) \
866 c = *eptr++; \
867 if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
868
869 /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
870 This is called when we don't know if we are in UTF-16 mode. */
871
872 #define GETCHARINCTEST(c, eptr) \
873 c = *eptr++; \
874 if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
875
876 /* Base macro to pick up the low surrogate of a UTF-16 character, not
877 advancing the pointer, incrementing the length. */
878
879 #define GETUTF16LEN(c, eptr, len) \
880 { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
881
882 /* Get the next UTF-16 character, not advancing the pointer, incrementing
883 length if there is a low surrogate. This is called when we know we are in
884 UTF-16 mode. */
885
886 #define GETCHARLEN(c, eptr, len) \
887 c = *eptr; \
888 if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
889
890 /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
891 pointer, incrementing length if there is a low surrogate. This is called when
892 we do not know if we are in UTF-16 mode. */
893
894 #define GETCHARLENTEST(c, eptr, len) \
895 c = *eptr; \
896 if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
897
898 /* Returns the next uchar, not advancing the pointer. This is called when
899 we know we are in UTF mode. */
900
901 #define RAWUCHAR(eptr) \
902 (*(eptr))
903
904 /* Returns the next uchar, advancing the pointer. This is called when
905 we know we are in UTF mode. */
906
907 #define RAWUCHARINC(eptr) \
908 (*((eptr)++))
909
910 /* Returns the next uchar, testing for UTF mode, and not advancing the
911 pointer. */
912
913 #define RAWUCHARTEST(eptr) \
914 (*(eptr))
915
916 /* Returns the next uchar, testing for UTF mode, advancing the
917 pointer. */
918
919 #define RAWUCHARINCTEST(eptr) \
920 (*((eptr)++))
921
922 /* If the pointer is not at the start of a character, move it back until
923 it is. This is called only in UTF-16 mode - we don't put a test within the
924 macro because almost all calls are already within a block of UTF-16 only
925 code. */
926
927 #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
928
929 /* Same as above, just in the other direction. */
930 #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
931
932 /* Same as above, but it allows a fully customizable form. */
933 #define ACROSSCHAR(condition, eptr, action) \
934 if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
935
936 #elif defined COMPILE_PCRE32
937
938 /* These are trivial for the 32-bit library, since all UTF-32 characters fit
939 into one pcre_uchar unit. */
940 #define MAX_VALUE_FOR_SINGLE_CHAR (0x10ffffu)
941 #define HAS_EXTRALEN(c) (0)
942 #define GET_EXTRALEN(c) (0)
943 #define NOT_FIRSTCHAR(c) (0)
944
945 /* Get the next UTF-32 character, not advancing the pointer. This is called when
946 we know we are in UTF-32 mode. */
947
948 #define GETCHAR(c, eptr) \
949 c = *(eptr);
950
951 /* Get the next UTF-32 character, testing for UTF-32 mode, and not advancing the
952 pointer. */
953
954 #define GETCHARTEST(c, eptr) \
955 c = *(eptr);
956
957 /* Get the next UTF-32 character, advancing the pointer. This is called when we
958 know we are in UTF-32 mode. */
959
960 #define GETCHARINC(c, eptr) \
961 c = *((eptr)++);
962
963 /* Get the next character, testing for UTF-32 mode, and advancing the pointer.
964 This is called when we don't know if we are in UTF-32 mode. */
965
966 #define GETCHARINCTEST(c, eptr) \
967 c = *((eptr)++);
968
969 /* Get the next UTF-32 character, not advancing the pointer, not incrementing
970 length (since all UTF-32 is of length 1). This is called when we know we are in
971 UTF-32 mode. */
972
973 #define GETCHARLEN(c, eptr, len) \
974 GETCHAR(c, eptr)
975
976 /* Get the next UTF-32character, testing for UTF-32 mode, not advancing the
977 pointer, not incrementing the length (since all UTF-32 is of length 1).
978 This is called when we do not know if we are in UTF-32 mode. */
979
980 #define GETCHARLENTEST(c, eptr, len) \
981 GETCHARTEST(c, eptr)
982
983 /* Returns the next uchar, not advancing the pointer. This is called when
984 we know we are in UTF mode. */
985
986 #define RAWUCHAR(eptr) \
987 (*(eptr))
988
989 /* Returns the next uchar, advancing the pointer. This is called when
990 we know we are in UTF mode. */
991
992 #define RAWUCHARINC(eptr) \
993 (*((eptr)++))
994
995 /* Returns the next uchar, testing for UTF mode, and not advancing the
996 pointer. */
997
998 #define RAWUCHARTEST(eptr) \
999 (*(eptr))
1000
1001 /* Returns the next uchar, testing for UTF mode, advancing the
1002 pointer. */
1003
1004 #define RAWUCHARINCTEST(eptr) \
1005 (*((eptr)++))
1006
1007 /* If the pointer is not at the start of a character, move it back until
1008 it is. This is called only in UTF-32 mode - we don't put a test within the
1009 macro because almost all calls are already within a block of UTF-32 only
1010 code.
1011 These are all no-ops since all UTF-32 characters fit into one pcre_uchar. */
1012
1013 #define BACKCHAR(eptr) do { } while (0)
1014
1015 /* Same as above, just in the other direction. */
1016 #define FORWARDCHAR(eptr) do { } while (0)
1017
1018 /* Same as above, but it allows a fully customizable form. */
1019 #define ACROSSCHAR(condition, eptr, action) do { } while (0)
1020
1021 #else
1022 #error Unsupported compiling mode
1023 #endif /* COMPILE_PCRE[8|16|32] */
1024
1025 #endif /* SUPPORT_UTF */
1026
1027 /* Tests for Unicode horizontal and vertical whitespace characters must check a
1028 number of different values. Using a switch statement for this generates the
1029 fastest code (no loop, no memory access), and there are several places in the
1030 interpreter code where this happens. In order to ensure that all the case lists
1031 remain in step, we use macros so that there is only one place where the lists
1032 are defined.
1033
1034 These values are also required as lists in pcre_compile.c when processing \h,
1035 \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
1036 macros that define the values are here so that all the definitions are
1037 together. The lists must be in ascending character order, terminated by
1038 NOTACHAR (which is 0xffffffff).
1039
1040 Any changes should ensure that the various macros are kept in step with each
1041 other. NOTE: The values also appear in pcre_jit_compile.c. */
1042
1043 /* ------ ASCII/Unicode environments ------ */
1044
1045 #ifndef EBCDIC
1046
1047 #define HSPACE_LIST \
1048 CHAR_HT, CHAR_SPACE, 0xa0, \
1049 0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
1050 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
1051 NOTACHAR
1052
1053 #define HSPACE_MULTIBYTE_CASES \
1054 case 0x1680: /* OGHAM SPACE MARK */ \
1055 case 0x180e: /* MONGOLIAN VOWEL SEPARATOR */ \
1056 case 0x2000: /* EN QUAD */ \
1057 case 0x2001: /* EM QUAD */ \
1058 case 0x2002: /* EN SPACE */ \
1059 case 0x2003: /* EM SPACE */ \
1060 case 0x2004: /* THREE-PER-EM SPACE */ \
1061 case 0x2005: /* FOUR-PER-EM SPACE */ \
1062 case 0x2006: /* SIX-PER-EM SPACE */ \
1063 case 0x2007: /* FIGURE SPACE */ \
1064 case 0x2008: /* PUNCTUATION SPACE */ \
1065 case 0x2009: /* THIN SPACE */ \
1066 case 0x200A: /* HAIR SPACE */ \
1067 case 0x202f: /* NARROW NO-BREAK SPACE */ \
1068 case 0x205f: /* MEDIUM MATHEMATICAL SPACE */ \
1069 case 0x3000 /* IDEOGRAPHIC SPACE */
1070
1071 #define HSPACE_BYTE_CASES \
1072 case CHAR_HT: \
1073 case CHAR_SPACE: \
1074 case 0xa0 /* NBSP */
1075
1076 #define HSPACE_CASES \
1077 HSPACE_BYTE_CASES: \
1078 HSPACE_MULTIBYTE_CASES
1079
1080 #define VSPACE_LIST \
1081 CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
1082
1083 #define VSPACE_MULTIBYTE_CASES \
1084 case 0x2028: /* LINE SEPARATOR */ \
1085 case 0x2029 /* PARAGRAPH SEPARATOR */
1086
1087 #define VSPACE_BYTE_CASES \
1088 case CHAR_LF: \
1089 case CHAR_VT: \
1090 case CHAR_FF: \
1091 case CHAR_CR: \
1092 case CHAR_NEL
1093
1094 #define VSPACE_CASES \
1095 VSPACE_BYTE_CASES: \
1096 VSPACE_MULTIBYTE_CASES
1097
1098 /* ------ EBCDIC environments ------ */
1099
1100 #else
1101 #define HSPACE_LIST CHAR_HT, CHAR_SPACE
1102
1103 #define HSPACE_BYTE_CASES \
1104 case CHAR_HT: \
1105 case CHAR_SPACE
1106
1107 #define HSPACE_CASES HSPACE_BYTE_CASES
1108
1109 #ifdef EBCDIC_NL25
1110 #define VSPACE_LIST \
1111 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
1112 #else
1113 #define VSPACE_LIST \
1114 CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
1115 #endif
1116
1117 #define VSPACE_BYTE_CASES \
1118 case CHAR_LF: \
1119 case CHAR_VT: \
1120 case CHAR_FF: \
1121 case CHAR_CR: \
1122 case CHAR_NEL
1123
1124 #define VSPACE_CASES VSPACE_BYTE_CASES
1125 #endif /* EBCDIC */
1126
1127 /* ------ End of whitespace macros ------ */
1128
1129
1130
1131 /* Private flags containing information about the compiled regex. They used to
1132 live at the top end of the options word, but that got almost full, so they were
1133 moved to a 16-bit flags word - which got almost full, so now they are in a
1134 32-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as the
1135 restrictions on partial matching have been lifted. It remains for backwards
1136 compatibility. */
1137
1138 #define PCRE_MODE8 0x00000001 /* compiled in 8 bit mode */
1139 #define PCRE_MODE16 0x00000002 /* compiled in 16 bit mode */
1140 #define PCRE_MODE32 0x00000004 /* compiled in 32 bit mode */
1141 #define PCRE_FIRSTSET 0x00000010 /* first_char is set */
1142 #define PCRE_FCH_CASELESS 0x00000020 /* caseless first char */
1143 #define PCRE_REQCHSET 0x00000040 /* req_byte is set */
1144 #define PCRE_RCH_CASELESS 0x00000080 /* caseless requested char */
1145 #define PCRE_STARTLINE 0x00000100 /* start after \n for multiline */
1146 #define PCRE_NOPARTIAL 0x00000200 /* can't use partial with this regex */
1147 #define PCRE_JCHANGED 0x00000400 /* j option used in regex */
1148 #define PCRE_HASCRORLF 0x00000800 /* explicit \r or \n in pattern */
1149 #define PCRE_HASTHEN 0x00001000 /* pattern contains (*THEN) */
1150 #define PCRE_MLSET 0x00002000 /* match limit set by regex */
1151 #define PCRE_RLSET 0x00004000 /* recursion limit set by regex */
1152
1153 #if defined COMPILE_PCRE8
1154 #define PCRE_MODE PCRE_MODE8
1155 #elif defined COMPILE_PCRE16
1156 #define PCRE_MODE PCRE_MODE16
1157 #elif defined COMPILE_PCRE32
1158 #define PCRE_MODE PCRE_MODE32
1159 #endif
1160 #define PCRE_MODE_MASK (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
1161
1162 /* Flags for the "extra" block produced by pcre_study(). */
1163
1164 #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
1165 #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
1166
1167 /* Masks for identifying the public options that are permitted at compile
1168 time, run time, or study time, respectively. */
1169
1170 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
1171 PCRE_NEWLINE_ANYCRLF)
1172
1173 #define PUBLIC_COMPILE_OPTIONS \
1174 (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
1175 PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
1176 PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1177 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1178 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE|PCRE_NEVER_UTF)
1179
1180 #define PUBLIC_EXEC_OPTIONS \
1181 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1182 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
1183 PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
1184
1185 #define PUBLIC_DFA_EXEC_OPTIONS \
1186 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1187 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
1188 PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1189 PCRE_NO_START_OPTIMIZE)
1190
1191 #define PUBLIC_STUDY_OPTIONS \
1192 (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
1193 PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1194
1195 #define PUBLIC_JIT_EXEC_OPTIONS \
1196 (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
1197 PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
1198
1199 /* Magic number to provide a small check against being handed junk. */
1200
1201 #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
1202
1203 /* This variable is used to detect a loaded regular expression
1204 in different endianness. */
1205
1206 #define REVERSED_MAGIC_NUMBER 0x45524350UL /* 'ERCP' */
1207
1208 /* The maximum remaining length of subject we are prepared to search for a
1209 req_byte match. */
1210
1211 #define REQ_BYTE_MAX 1000
1212
1213 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1214 environments where these macros are defined elsewhere. Unfortunately, there
1215 is no way to do the same for the typedef. */
1216
1217 typedef int BOOL;
1218
1219 #ifndef FALSE
1220 #define FALSE 0
1221 #define TRUE 1
1222 #endif
1223
1224 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1225 character constants like '*' because the compiler would emit their EBCDIC code,
1226 which is different from their ASCII/UTF-8 code. Instead we define macros for
1227 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1228 is enabled. When UTF-8 support is not enabled, the definitions use character
1229 literals. Both character and string versions of each character are needed, and
1230 there are some longer strings as well.
1231
1232 This means that, on EBCDIC platforms, the PCRE library can handle either
1233 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1234 would need different lookups depending on whether PCRE_UTF8 was set or not.
1235 This would make it impossible to use characters in switch/case statements,
1236 which would reduce performance. For a theoretical use (which nobody has asked
1237 for) in a minority area (EBCDIC platforms), this is not sensible. Any
1238 application that did need both could compile two versions of the library, using
1239 macros to give the functions distinct names. */
1240
1241 #ifndef SUPPORT_UTF
1242
1243 /* UTF-8 support is not enabled; use the platform-dependent character literals
1244 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1245 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1246 characters, a common practice has been to use its NL (0x15) character as the
1247 line terminator in C-like processing environments. However, sometimes the LF
1248 (0x25) character is used instead, according to this Unicode document:
1249
1250 http://unicode.org/standard/reports/tr13/tr13-5.html
1251
1252 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1253 instead. Whichever is *not* chosen is defined as NEL.
1254
1255 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1256 same code point. */
1257
1258 #ifdef EBCDIC
1259
1260 #ifndef EBCDIC_NL25
1261 #define CHAR_NL '\x15'
1262 #define CHAR_NEL '\x25'
1263 #define STR_NL "\x15"
1264 #define STR_NEL "\x25"
1265 #else
1266 #define CHAR_NL '\x25'
1267 #define CHAR_NEL '\x15'
1268 #define STR_NL "\x25"
1269 #define STR_NEL "\x15"
1270 #endif
1271
1272 #define CHAR_LF CHAR_NL
1273 #define STR_LF STR_NL
1274
1275 #define CHAR_ESC '\047'
1276 #define CHAR_DEL '\007'
1277 #define STR_ESC "\047"
1278 #define STR_DEL "\007"
1279
1280 #else /* Not EBCDIC */
1281
1282 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1283 compatibility. NEL is the Unicode newline character; make sure it is
1284 a positive value. */
1285
1286 #define CHAR_LF '\n'
1287 #define CHAR_NL CHAR_LF
1288 #define CHAR_NEL ((unsigned char)'\x85')
1289 #define CHAR_ESC '\033'
1290 #define CHAR_DEL '\177'
1291
1292 #define STR_LF "\n"
1293 #define STR_NL STR_LF
1294 #define STR_NEL "\x85"
1295 #define STR_ESC "\033"
1296 #define STR_DEL "\177"
1297
1298 #endif /* EBCDIC */
1299
1300 /* The remaining definitions work in both environments. */
1301
1302 #define CHAR_NULL '\0'
1303 #define CHAR_HT '\t'
1304 #define CHAR_VT '\v'
1305 #define CHAR_FF '\f'
1306 #define CHAR_CR '\r'
1307 #define CHAR_BS '\b'
1308 #define CHAR_BEL '\a'
1309
1310 #define CHAR_SPACE ' '
1311 #define CHAR_EXCLAMATION_MARK '!'
1312 #define CHAR_QUOTATION_MARK '"'
1313 #define CHAR_NUMBER_SIGN '#'
1314 #define CHAR_DOLLAR_SIGN '$'
1315 #define CHAR_PERCENT_SIGN '%'
1316 #define CHAR_AMPERSAND '&'
1317 #define CHAR_APOSTROPHE '\''
1318 #define CHAR_LEFT_PARENTHESIS '('
1319 #define CHAR_RIGHT_PARENTHESIS ')'
1320 #define CHAR_ASTERISK '*'
1321 #define CHAR_PLUS '+'
1322 #define CHAR_COMMA ','
1323 #define CHAR_MINUS '-'
1324 #define CHAR_DOT '.'
1325 #define CHAR_SLASH '/'
1326 #define CHAR_0 '0'
1327 #define CHAR_1 '1'
1328 #define CHAR_2 '2'
1329 #define CHAR_3 '3'
1330 #define CHAR_4 '4'
1331 #define CHAR_5 '5'
1332 #define CHAR_6 '6'
1333 #define CHAR_7 '7'
1334 #define CHAR_8 '8'
1335 #define CHAR_9 '9'
1336 #define CHAR_COLON ':'
1337 #define CHAR_SEMICOLON ';'
1338 #define CHAR_LESS_THAN_SIGN '<'
1339 #define CHAR_EQUALS_SIGN '='
1340 #define CHAR_GREATER_THAN_SIGN '>'
1341 #define CHAR_QUESTION_MARK '?'
1342 #define CHAR_COMMERCIAL_AT '@'
1343 #define CHAR_A 'A'
1344 #define CHAR_B 'B'
1345 #define CHAR_C 'C'
1346 #define CHAR_D 'D'
1347 #define CHAR_E 'E'
1348 #define CHAR_F 'F'
1349 #define CHAR_G 'G'
1350 #define CHAR_H 'H'
1351 #define CHAR_I 'I'
1352 #define CHAR_J 'J'
1353 #define CHAR_K 'K'
1354 #define CHAR_L 'L'
1355 #define CHAR_M 'M'
1356 #define CHAR_N 'N'
1357 #define CHAR_O 'O'
1358 #define CHAR_P 'P'
1359 #define CHAR_Q 'Q'
1360 #define CHAR_R 'R'
1361 #define CHAR_S 'S'
1362 #define CHAR_T 'T'
1363 #define CHAR_U 'U'
1364 #define CHAR_V 'V'
1365 #define CHAR_W 'W'
1366 #define CHAR_X 'X'
1367 #define CHAR_Y 'Y'
1368 #define CHAR_Z 'Z'
1369 #define CHAR_LEFT_SQUARE_BRACKET '['
1370 #define CHAR_BACKSLASH '\\'
1371 #define CHAR_RIGHT_SQUARE_BRACKET ']'
1372 #define CHAR_CIRCUMFLEX_ACCENT '^'
1373 #define CHAR_UNDERSCORE '_'
1374 #define CHAR_GRAVE_ACCENT '`'
1375 #define CHAR_a 'a'
1376 #define CHAR_b 'b'
1377 #define CHAR_c 'c'
1378 #define CHAR_d 'd'
1379 #define CHAR_e 'e'
1380 #define CHAR_f 'f'
1381 #define CHAR_g 'g'
1382 #define CHAR_h 'h'
1383 #define CHAR_i 'i'
1384 #define CHAR_j 'j'
1385 #define CHAR_k 'k'
1386 #define CHAR_l 'l'
1387 #define CHAR_m 'm'
1388 #define CHAR_n 'n'
1389 #define CHAR_o 'o'
1390 #define CHAR_p 'p'
1391 #define CHAR_q 'q'
1392 #define CHAR_r 'r'
1393 #define CHAR_s 's'
1394 #define CHAR_t 't'
1395 #define CHAR_u 'u'
1396 #define CHAR_v 'v'
1397 #define CHAR_w 'w'
1398 #define CHAR_x 'x'
1399 #define CHAR_y 'y'
1400 #define CHAR_z 'z'
1401 #define CHAR_LEFT_CURLY_BRACKET '{'
1402 #define CHAR_VERTICAL_LINE '|'
1403 #define CHAR_RIGHT_CURLY_BRACKET '}'
1404 #define CHAR_TILDE '~'
1405
1406 #define STR_HT "\t"
1407 #define STR_VT "\v"
1408 #define STR_FF "\f"
1409 #define STR_CR "\r"
1410 #define STR_BS "\b"
1411 #define STR_BEL "\a"
1412
1413 #define STR_SPACE " "
1414 #define STR_EXCLAMATION_MARK "!"
1415 #define STR_QUOTATION_MARK "\""
1416 #define STR_NUMBER_SIGN "#"
1417 #define STR_DOLLAR_SIGN "$"
1418 #define STR_PERCENT_SIGN "%"
1419 #define STR_AMPERSAND "&"
1420 #define STR_APOSTROPHE "'"
1421 #define STR_LEFT_PARENTHESIS "("
1422 #define STR_RIGHT_PARENTHESIS ")"
1423 #define STR_ASTERISK "*"
1424 #define STR_PLUS "+"
1425 #define STR_COMMA ","
1426 #define STR_MINUS "-"
1427 #define STR_DOT "."
1428 #define STR_SLASH "/"
1429 #define STR_0 "0"
1430 #define STR_1 "1"
1431 #define STR_2 "2"
1432 #define STR_3 "3"
1433 #define STR_4 "4"
1434 #define STR_5 "5"
1435 #define STR_6 "6"
1436 #define STR_7 "7"
1437 #define STR_8 "8"
1438 #define STR_9 "9"
1439 #define STR_COLON ":"
1440 #define STR_SEMICOLON ";"
1441 #define STR_LESS_THAN_SIGN "<"
1442 #define STR_EQUALS_SIGN "="
1443 #define STR_GREATER_THAN_SIGN ">"
1444 #define STR_QUESTION_MARK "?"
1445 #define STR_COMMERCIAL_AT "@"
1446 #define STR_A "A"
1447 #define STR_B "B"
1448 #define STR_C "C"
1449 #define STR_D "D"
1450 #define STR_E "E"
1451 #define STR_F "F"
1452 #define STR_G "G"
1453 #define STR_H "H"
1454 #define STR_I "I"
1455 #define STR_J "J"
1456 #define STR_K "K"
1457 #define STR_L "L"
1458 #define STR_M "M"
1459 #define STR_N "N"
1460 #define STR_O "O"
1461 #define STR_P "P"
1462 #define STR_Q "Q"
1463 #define STR_R "R"
1464 #define STR_S "S"
1465 #define STR_T "T"
1466 #define STR_U "U"
1467 #define STR_V "V"
1468 #define STR_W "W"
1469 #define STR_X "X"
1470 #define STR_Y "Y"
1471 #define STR_Z "Z"
1472 #define STR_LEFT_SQUARE_BRACKET "["
1473 #define STR_BACKSLASH "\\"
1474 #define STR_RIGHT_SQUARE_BRACKET "]"
1475 #define STR_CIRCUMFLEX_ACCENT "^"
1476 #define STR_UNDERSCORE "_"
1477 #define STR_GRAVE_ACCENT "`"
1478 #define STR_a "a"
1479 #define STR_b "b"
1480 #define STR_c "c"
1481 #define STR_d "d"
1482 #define STR_e "e"
1483 #define STR_f "f"
1484 #define STR_g "g"
1485 #define STR_h "h"
1486 #define STR_i "i"
1487 #define STR_j "j"
1488 #define STR_k "k"
1489 #define STR_l "l"
1490 #define STR_m "m"
1491 #define STR_n "n"
1492 #define STR_o "o"
1493 #define STR_p "p"
1494 #define STR_q "q"
1495 #define STR_r "r"
1496 #define STR_s "s"
1497 #define STR_t "t"
1498 #define STR_u "u"
1499 #define STR_v "v"
1500 #define STR_w "w"
1501 #define STR_x "x"
1502 #define STR_y "y"
1503 #define STR_z "z"
1504 #define STR_LEFT_CURLY_BRACKET "{"
1505 #define STR_VERTICAL_LINE "|"
1506 #define STR_RIGHT_CURLY_BRACKET "}"
1507 #define STR_TILDE "~"
1508
1509 #define STRING_ACCEPT0 "ACCEPT\0"
1510 #define STRING_COMMIT0 "COMMIT\0"
1511 #define STRING_F0 "F\0"
1512 #define STRING_FAIL0 "FAIL\0"
1513 #define STRING_MARK0 "MARK\0"
1514 #define STRING_PRUNE0 "PRUNE\0"
1515 #define STRING_SKIP0 "SKIP\0"
1516 #define STRING_THEN "THEN"
1517
1518 #define STRING_alpha0 "alpha\0"
1519 #define STRING_lower0 "lower\0"
1520 #define STRING_upper0 "upper\0"
1521 #define STRING_alnum0 "alnum\0"
1522 #define STRING_ascii0 "ascii\0"
1523 #define STRING_blank0 "blank\0"
1524 #define STRING_cntrl0 "cntrl\0"
1525 #define STRING_digit0 "digit\0"
1526 #define STRING_graph0 "graph\0"
1527 #define STRING_print0 "print\0"
1528 #define STRING_punct0 "punct\0"
1529 #define STRING_space0 "space\0"
1530 #define STRING_word0 "word\0"
1531 #define STRING_xdigit "xdigit"
1532
1533 #define STRING_DEFINE "DEFINE"
1534
1535 #define STRING_CR_RIGHTPAR "CR)"
1536 #define STRING_LF_RIGHTPAR "LF)"
1537 #define STRING_CRLF_RIGHTPAR "CRLF)"
1538 #define STRING_ANY_RIGHTPAR "ANY)"
1539 #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1540 #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1541 #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1542 #define STRING_UTF8_RIGHTPAR "UTF8)"
1543 #define STRING_UTF16_RIGHTPAR "UTF16)"
1544 #define STRING_UTF32_RIGHTPAR "UTF32)"
1545 #define STRING_UTF_RIGHTPAR "UTF)"
1546 #define STRING_UCP_RIGHTPAR "UCP)"
1547 #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1548 #define STRING_LIMIT_MATCH_EQ "LIMIT_MATCH="
1549 #define STRING_LIMIT_RECURSION_EQ "LIMIT_RECURSION="
1550
1551 #else /* SUPPORT_UTF */
1552
1553 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1554 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1555 only. */
1556
1557 #define CHAR_HT '\011'
1558 #define CHAR_VT '\013'
1559 #define CHAR_FF '\014'
1560 #define CHAR_CR '\015'
1561 #define CHAR_LF '\012'
1562 #define CHAR_NL CHAR_LF
1563 #define CHAR_NEL ((unsigned char)'\x85')
1564 #define CHAR_BS '\010'
1565 #define CHAR_BEL '\007'
1566 #define CHAR_ESC '\033'
1567 #define CHAR_DEL '\177'
1568
1569 #define CHAR_NULL '\0'
1570 #define CHAR_SPACE '\040'
1571 #define CHAR_EXCLAMATION_MARK '\041'
1572 #define CHAR_QUOTATION_MARK '\042'
1573 #define CHAR_NUMBER_SIGN '\043'
1574 #define CHAR_DOLLAR_SIGN '\044'
1575 #define CHAR_PERCENT_SIGN '\045'
1576 #define CHAR_AMPERSAND '\046'
1577 #define CHAR_APOSTROPHE '\047'
1578 #define CHAR_LEFT_PARENTHESIS '\050'
1579 #define CHAR_RIGHT_PARENTHESIS '\051'
1580 #define CHAR_ASTERISK '\052'
1581 #define CHAR_PLUS '\053'
1582 #define CHAR_COMMA '\054'
1583 #define CHAR_MINUS '\055'
1584 #define CHAR_DOT '\056'
1585 #define CHAR_SLASH '\057'
1586 #define CHAR_0 '\060'
1587 #define CHAR_1 '\061'
1588 #define CHAR_2 '\062'
1589 #define CHAR_3 '\063'
1590 #define CHAR_4 '\064'
1591 #define CHAR_5 '\065'
1592 #define CHAR_6 '\066'
1593 #define CHAR_7 '\067'
1594 #define CHAR_8 '\070'
1595 #define CHAR_9 '\071'
1596 #define CHAR_COLON '\072'
1597 #define CHAR_SEMICOLON '\073'
1598 #define CHAR_LESS_THAN_SIGN '\074'
1599 #define CHAR_EQUALS_SIGN '\075'
1600 #define CHAR_GREATER_THAN_SIGN '\076'
1601 #define CHAR_QUESTION_MARK '\077'
1602 #define CHAR_COMMERCIAL_AT '\100'
1603 #define CHAR_A '\101'
1604 #define CHAR_B '\102'
1605 #define CHAR_C '\103'
1606 #define CHAR_D '\104'
1607 #define CHAR_E '\105'
1608 #define CHAR_F '\106'
1609 #define CHAR_G '\107'
1610 #define CHAR_H '\110'
1611 #define CHAR_I '\111'
1612 #define CHAR_J '\112'
1613 #define CHAR_K '\113'
1614 #define CHAR_L '\114'
1615 #define CHAR_M '\115'
1616 #define CHAR_N '\116'
1617 #define CHAR_O '\117'
1618 #define CHAR_P '\120'
1619 #define CHAR_Q '\121'
1620 #define CHAR_R '\122'
1621 #define CHAR_S '\123'
1622 #define CHAR_T '\124'
1623 #define CHAR_U '\125'
1624 #define CHAR_V '\126'
1625 #define CHAR_W '\127'
1626 #define CHAR_X '\130'
1627 #define CHAR_Y '\131'
1628 #define CHAR_Z '\132'
1629 #define CHAR_LEFT_SQUARE_BRACKET '\133'
1630 #define CHAR_BACKSLASH '\134'
1631 #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1632 #define CHAR_CIRCUMFLEX_ACCENT '\136'
1633 #define CHAR_UNDERSCORE '\137'
1634 #define CHAR_GRAVE_ACCENT '\140'
1635 #define CHAR_a '\141'
1636 #define CHAR_b '\142'
1637 #define CHAR_c '\143'
1638 #define CHAR_d '\144'
1639 #define CHAR_e '\145'
1640 #define CHAR_f '\146'
1641 #define CHAR_g '\147'
1642 #define CHAR_h '\150'
1643 #define CHAR_i '\151'
1644 #define CHAR_j '\152'
1645 #define CHAR_k '\153'
1646 #define CHAR_l '\154'
1647 #define CHAR_m '\155'
1648 #define CHAR_n '\156'
1649 #define CHAR_o '\157'
1650 #define CHAR_p '\160'
1651 #define CHAR_q '\161'
1652 #define CHAR_r '\162'
1653 #define CHAR_s '\163'
1654 #define CHAR_t '\164'
1655 #define CHAR_u '\165'
1656 #define CHAR_v '\166'
1657 #define CHAR_w '\167'
1658 #define CHAR_x '\170'
1659 #define CHAR_y '\171'
1660 #define CHAR_z '\172'
1661 #define CHAR_LEFT_CURLY_BRACKET '\173'
1662 #define CHAR_VERTICAL_LINE '\174'
1663 #define CHAR_RIGHT_CURLY_BRACKET '\175'
1664 #define CHAR_TILDE '\176'
1665
1666 #define STR_HT "\011"
1667 #define STR_VT "\013"
1668 #define STR_FF "\014"
1669 #define STR_CR "\015"
1670 #define STR_NL "\012"
1671 #define STR_BS "\010"
1672 #define STR_BEL "\007"
1673 #define STR_ESC "\033"
1674 #define STR_DEL "\177"
1675
1676 #define STR_SPACE "\040"
1677 #define STR_EXCLAMATION_MARK "\041"
1678 #define STR_QUOTATION_MARK "\042"
1679 #define STR_NUMBER_SIGN "\043"
1680 #define STR_DOLLAR_SIGN "\044"
1681 #define STR_PERCENT_SIGN "\045"
1682 #define STR_AMPERSAND "\046"
1683 #define STR_APOSTROPHE "\047"
1684 #define STR_LEFT_PARENTHESIS "\050"
1685 #define STR_RIGHT_PARENTHESIS "\051"
1686 #define STR_ASTERISK "\052"
1687 #define STR_PLUS "\053"
1688 #define STR_COMMA "\054"
1689 #define STR_MINUS "\055"
1690 #define STR_DOT "\056"
1691 #define STR_SLASH "\057"
1692 #define STR_0 "\060"
1693 #define STR_1 "\061"
1694 #define STR_2 "\062"
1695 #define STR_3 "\063"
1696 #define STR_4 "\064"
1697 #define STR_5 "\065"
1698 #define STR_6 "\066"
1699 #define STR_7 "\067"
1700 #define STR_8 "\070"
1701 #define STR_9 "\071"
1702 #define STR_COLON "\072"
1703 #define STR_SEMICOLON "\073"
1704 #define STR_LESS_THAN_SIGN "\074"
1705 #define STR_EQUALS_SIGN "\075"
1706 #define STR_GREATER_THAN_SIGN "\076"
1707 #define STR_QUESTION_MARK "\077"
1708 #define STR_COMMERCIAL_AT "\100"
1709 #define STR_A "\101"
1710 #define STR_B "\102"
1711 #define STR_C "\103"
1712 #define STR_D "\104"
1713 #define STR_E "\105"
1714 #define STR_F "\106"
1715 #define STR_G "\107"
1716 #define STR_H "\110"
1717 #define STR_I "\111"
1718 #define STR_J "\112"
1719 #define STR_K "\113"
1720 #define STR_L "\114"
1721 #define STR_M "\115"
1722 #define STR_N "\116"
1723 #define STR_O "\117"
1724 #define STR_P "\120"
1725 #define STR_Q "\121"
1726 #define STR_R "\122"
1727 #define STR_S "\123"
1728 #define STR_T "\124"
1729 #define STR_U "\125"
1730 #define STR_V "\126"
1731 #define STR_W "\127"
1732 #define STR_X "\130"
1733 #define STR_Y "\131"
1734 #define STR_Z "\132"
1735 #define STR_LEFT_SQUARE_BRACKET "\133"
1736 #define STR_BACKSLASH "\134"
1737 #define STR_RIGHT_SQUARE_BRACKET "\135"
1738 #define STR_CIRCUMFLEX_ACCENT "\136"
1739 #define STR_UNDERSCORE "\137"
1740 #define STR_GRAVE_ACCENT "\140"
1741 #define STR_a "\141"
1742 #define STR_b "\142"
1743 #define STR_c "\143"
1744 #define STR_d "\144"
1745 #define STR_e "\145"
1746 #define STR_f "\146"
1747 #define STR_g "\147"
1748 #define STR_h "\150"
1749 #define STR_i "\151"
1750 #define STR_j "\152"
1751 #define STR_k "\153"
1752 #define STR_l "\154"
1753 #define STR_m "\155"
1754 #define STR_n "\156"
1755 #define STR_o "\157"
1756 #define STR_p "\160"
1757 #define STR_q "\161"
1758 #define STR_r "\162"
1759 #define STR_s "\163"
1760 #define STR_t "\164"
1761 #define STR_u "\165"
1762 #define STR_v "\166"
1763 #define STR_w "\167"
1764 #define STR_x "\170"
1765 #define STR_y "\171"
1766 #define STR_z "\172"
1767 #define STR_LEFT_CURLY_BRACKET "\173"
1768 #define STR_VERTICAL_LINE "\174"
1769 #define STR_RIGHT_CURLY_BRACKET "\175"
1770 #define STR_TILDE "\176"
1771
1772 #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1773 #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1774 #define STRING_F0 STR_F "\0"
1775 #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1776 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1777 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1778 #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1779 #define STRING_THEN STR_T STR_H STR_E STR_N
1780
1781 #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1782 #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1783 #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1784 #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1785 #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1786 #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1787 #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1788 #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1789 #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1790 #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1791 #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1792 #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1793 #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1794 #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1795
1796 #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1797
1798 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1799 #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1800 #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1801 #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1802 #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1803 #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
1804 #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
1805 #define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1806 #define STRING_UTF16_RIGHTPAR STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1807 #define STRING_UTF32_RIGHTPAR STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1808 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1809 #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1810 #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
1811 #define STRING_LIMIT_MATCH_EQ STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_M STR_A STR_T STR_C STR_H STR_EQUALS_SIGN
1812 #define STRING_LIMIT_RECURSION_EQ STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_R STR_E STR_C STR_U STR_R STR_S STR_I STR_O STR_N STR_EQUALS_SIGN
1813
1814 #endif /* SUPPORT_UTF */
1815
1816 /* Escape items that are just an encoding of a particular data value. */
1817
1818 #ifndef ESC_e
1819 #define ESC_e CHAR_ESC
1820 #endif
1821
1822 #ifndef ESC_f
1823 #define ESC_f CHAR_FF
1824 #endif
1825
1826 #ifndef ESC_n
1827 #define ESC_n CHAR_LF
1828 #endif
1829
1830 #ifndef ESC_r
1831 #define ESC_r CHAR_CR
1832 #endif
1833
1834 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1835 (presumably because of all the others like size_t). */
1836
1837 #ifndef ESC_tee
1838 #define ESC_tee CHAR_HT
1839 #endif
1840
1841 /* Codes for different types of Unicode property */
1842
1843 #define PT_ANY 0 /* Any property - matches all chars */
1844 #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1845 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1846 #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1847 #define PT_SC 4 /* Script (e.g. Han) */
1848 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1849 #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1850 #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1851 #define PT_WORD 8 /* Word - L plus N plus underscore */
1852 #define PT_CLIST 9 /* Pseudo-property: match character list */
1853 #define PT_UCNC 10 /* Universal Character nameable character */
1854
1855 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1856 contain characters with values greater than 255. */
1857
1858 #define XCL_NOT 0x01 /* Flag: this is a negative class */
1859 #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1860
1861 #define XCL_END 0 /* Marks end of individual items */
1862 #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1863 #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1864 #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1865 #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1866
1867 /* These are escaped items that aren't just an encoding of a particular data
1868 value such as \n. They must have non-zero values, as check_escape() returns
1869 0 for a data character. Also, they must appear in the same order as in the opcode
1870 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1871 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1872 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1873 non-DOTALL mode, "." behaves like \N.
1874
1875 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1876 when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1877 They must be contiguous, and remain in order so that the replacements can be
1878 looked up from a table.
1879
1880 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1881 check_escape(). There are two tests in the code for an escape
1882 greater than ESC_b and less than ESC_Z to detect the types that may be
1883 repeated. These are the types that consume characters. If any new escapes are
1884 put in between that don't consume a character, that code will have to change.
1885 */
1886
1887 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1888 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1889 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1890 ESC_E, ESC_Q, ESC_g, ESC_k,
1891 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1892
1893 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1894 OP_EOD must correspond in order to the list of escapes immediately above.
1895
1896 *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1897 that follow must also be updated to match. There are also tables called
1898 "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1899
1900 enum {
1901 OP_END, /* 0 End of pattern */
1902
1903 /* Values corresponding to backslashed metacharacters */
1904
1905 OP_SOD, /* 1 Start of data: \A */
1906 OP_SOM, /* 2 Start of match (subject + offset): \G */
1907 OP_SET_SOM, /* 3 Set start of match (\K) */
1908 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1909 OP_WORD_BOUNDARY, /* 5 \b */
1910 OP_NOT_DIGIT, /* 6 \D */
1911 OP_DIGIT, /* 7 \d */
1912 OP_NOT_WHITESPACE, /* 8 \S */
1913 OP_WHITESPACE, /* 9 \s */
1914 OP_NOT_WORDCHAR, /* 10 \W */
1915 OP_WORDCHAR, /* 11 \w */
1916
1917 OP_ANY, /* 12 Match any character except newline (\N) */
1918 OP_ALLANY, /* 13 Match any character */
1919 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1920 OP_NOTPROP, /* 15 \P (not Unicode property) */
1921 OP_PROP, /* 16 \p (Unicode property) */
1922 OP_ANYNL, /* 17 \R (any newline sequence) */
1923 OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1924 OP_HSPACE, /* 19 \h (horizontal whitespace) */
1925 OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1926 OP_VSPACE, /* 21 \v (vertical whitespace) */
1927 OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1928 OP_EODN, /* 23 End of data or \n at end of data (\Z) */
1929 OP_EOD, /* 24 End of data (\z) */
1930
1931 OP_CIRC, /* 25 Start of line - not multiline */
1932 OP_CIRCM, /* 26 Start of line - multiline */
1933 OP_DOLL, /* 27 End of line - not multiline */
1934 OP_DOLLM, /* 28 End of line - multiline */
1935 OP_CHAR, /* 29 Match one character, casefully */
1936 OP_CHARI, /* 30 Match one character, caselessly */
1937 OP_NOT, /* 31 Match one character, not the given one, casefully */
1938 OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1939
1940 /* The following sets of 13 opcodes must always be kept in step because
1941 the offset from the first one is used to generate the others. */
1942
1943 /**** Single characters, caseful, must precede the caseless ones ****/
1944
1945 OP_STAR, /* 33 The maximizing and minimizing versions of */
1946 OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1947 OP_PLUS, /* 35 the minimizing one second. */
1948 OP_MINPLUS, /* 36 */
1949 OP_QUERY, /* 37 */
1950 OP_MINQUERY, /* 38 */
1951
1952 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1953 OP_MINUPTO, /* 40 */
1954 OP_EXACT, /* 41 Exactly n matches */
1955
1956 OP_POSSTAR, /* 42 Possessified star, caseful */
1957 OP_POSPLUS, /* 43 Possessified plus, caseful */
1958 OP_POSQUERY, /* 44 Posesssified query, caseful */
1959 OP_POSUPTO, /* 45 Possessified upto, caseful */
1960
1961 /**** Single characters, caseless, must follow the caseful ones */
1962
1963 OP_STARI, /* 46 */
1964 OP_MINSTARI, /* 47 */
1965 OP_PLUSI, /* 48 */
1966 OP_MINPLUSI, /* 49 */
1967 OP_QUERYI, /* 50 */
1968 OP_MINQUERYI, /* 51 */
1969
1970 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1971 OP_MINUPTOI, /* 53 */
1972 OP_EXACTI, /* 54 */
1973
1974 OP_POSSTARI, /* 55 Possessified star, caseless */
1975 OP_POSPLUSI, /* 56 Possessified plus, caseless */
1976 OP_POSQUERYI, /* 57 Posesssified query, caseless */
1977 OP_POSUPTOI, /* 58 Possessified upto, caseless */
1978
1979 /**** The negated ones must follow the non-negated ones, and match them ****/
1980 /**** Negated single character, caseful; must precede the caseless ones ****/
1981
1982 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
1983 OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
1984 OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
1985 OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
1986 OP_NOTQUERY, /* 63 */
1987 OP_NOTMINQUERY, /* 64 */
1988
1989 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
1990 OP_NOTMINUPTO, /* 66 */
1991 OP_NOTEXACT, /* 67 Exactly n matches */
1992
1993 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
1994 OP_NOTPOSPLUS, /* 69 */
1995 OP_NOTPOSQUERY, /* 70 */
1996 OP_NOTPOSUPTO, /* 71 */
1997
1998 /**** Negated single character, caseless; must follow the caseful ones ****/
1999
2000 OP_NOTSTARI, /* 72 */
2001 OP_NOTMINSTARI, /* 73 */
2002 OP_NOTPLUSI, /* 74 */
2003 OP_NOTMINPLUSI, /* 75 */
2004 OP_NOTQUERYI, /* 76 */
2005 OP_NOTMINQUERYI, /* 77 */
2006
2007 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
2008 OP_NOTMINUPTOI, /* 79 */
2009 OP_NOTEXACTI, /* 80 Exactly n matches */
2010
2011 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
2012 OP_NOTPOSPLUSI, /* 82 */
2013 OP_NOTPOSQUERYI, /* 83 */
2014 OP_NOTPOSUPTOI, /* 84 */
2015
2016 /**** Character types ****/
2017
2018 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
2019 OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
2020 OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
2021 OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
2022 OP_TYPEQUERY, /* 89 */
2023 OP_TYPEMINQUERY, /* 90 */
2024
2025 OP_TYPEUPTO, /* 91 From 0 to n matches */
2026 OP_TYPEMINUPTO, /* 92 */
2027 OP_TYPEEXACT, /* 93 Exactly n matches */
2028
2029 OP_TYPEPOSSTAR, /* 94 Possessified versions */
2030 OP_TYPEPOSPLUS, /* 95 */
2031 OP_TYPEPOSQUERY, /* 96 */
2032 OP_TYPEPOSUPTO, /* 97 */
2033
2034 /* These are used for character classes and back references; only the
2035 first six are the same as the sets above. */
2036
2037 OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
2038 OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
2039 OP_CRPLUS, /* 100 the minimizing one second. These codes must */
2040 OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
2041 OP_CRQUERY, /* 102 */
2042 OP_CRMINQUERY, /* 103 */
2043
2044 OP_CRRANGE, /* 104 These are different to the three sets above. */
2045 OP_CRMINRANGE, /* 105 */
2046
2047 /* End of quantifier opcodes */
2048
2049 OP_CLASS, /* 106 Match a character class, chars < 256 only */
2050 OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
2051 class - the difference is relevant only when a
2052 character > 255 is encountered. */
2053 OP_XCLASS, /* 108 Extended class for handling > 255 chars within the
2054 class. This does both positive and negative. */
2055 OP_REF, /* 109 Match a back reference, casefully */
2056 OP_REFI, /* 110 Match a back reference, caselessly */
2057 OP_RECURSE, /* 111 Match a numbered subpattern (possibly recursive) */
2058 OP_CALLOUT, /* 112 Call out to external function if provided */
2059
2060 OP_ALT, /* 113 Start of alternation */
2061 OP_KET, /* 114 End of group that doesn't have an unbounded repeat */
2062 OP_KETRMAX, /* 115 These two must remain together and in this */
2063 OP_KETRMIN, /* 116 order. They are for groups the repeat for ever. */
2064 OP_KETRPOS, /* 117 Possessive unlimited repeat. */
2065
2066 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
2067 asserts must remain in order. */
2068
2069 OP_REVERSE, /* 118 Move pointer back - used in lookbehind assertions */
2070 OP_ASSERT, /* 119 Positive lookahead */
2071 OP_ASSERT_NOT, /* 120 Negative lookahead */
2072 OP_ASSERTBACK, /* 121 Positive lookbehind */
2073 OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
2074
2075 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
2076 after the assertions, with ONCE first, as there's a test for >= ONCE for a
2077 subpattern that isn't an assertion. The POS versions must immediately follow
2078 the non-POS versions in each case. */
2079
2080 OP_ONCE, /* 123 Atomic group, contains captures */
2081 OP_ONCE_NC, /* 124 Atomic group containing no captures */
2082 OP_BRA, /* 125 Start of non-capturing bracket */
2083 OP_BRAPOS, /* 126 Ditto, with unlimited, possessive repeat */
2084 OP_CBRA, /* 127 Start of capturing bracket */
2085 OP_CBRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
2086 OP_COND, /* 129 Conditional group */
2087
2088 /* These five must follow the previous five, in the same order. There's a
2089 check for >= SBRA to distinguish the two sets. */
2090
2091 OP_SBRA, /* 130 Start of non-capturing bracket, check empty */
2092 OP_SBRAPOS, /* 131 Ditto, with unlimited, possessive repeat */
2093 OP_SCBRA, /* 132 Start of capturing bracket, check empty */
2094 OP_SCBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
2095 OP_SCOND, /* 134 Conditional group, check empty */
2096
2097 /* The next two pairs must (respectively) be kept together. */
2098
2099 OP_CREF, /* 135 Used to hold a capture number as condition */
2100 OP_NCREF, /* 136 Same, but generated by a name reference*/
2101 OP_RREF, /* 137 Used to hold a recursion number as condition */
2102 OP_NRREF, /* 138 Same, but generated by a name reference*/
2103 OP_DEF, /* 139 The DEFINE condition */
2104
2105 OP_BRAZERO, /* 140 These two must remain together and in this */
2106 OP_BRAMINZERO, /* 141 order. */
2107 OP_BRAPOSZERO, /* 142 */
2108
2109 /* These are backtracking control verbs */
2110
2111 OP_MARK, /* 143 always has an argument */
2112 OP_PRUNE, /* 144 */
2113 OP_PRUNE_ARG, /* 145 same, but with argument */
2114 OP_SKIP, /* 146 */
2115 OP_SKIP_ARG, /* 147 same, but with argument */
2116 OP_THEN, /* 148 */
2117 OP_THEN_ARG, /* 149 same, but with argument */
2118 OP_COMMIT, /* 150 */
2119
2120 /* These are forced failure and success verbs */
2121
2122 OP_FAIL, /* 151 */
2123 OP_ACCEPT, /* 152 */
2124 OP_ASSERT_ACCEPT, /* 153 Used inside assertions */
2125 OP_CLOSE, /* 154 Used before OP_ACCEPT to close open captures */
2126
2127 /* This is used to skip a subpattern with a {0} quantifier */
2128
2129 OP_SKIPZERO, /* 155 */
2130
2131 /* This is not an opcode, but is used to check that tables indexed by opcode
2132 are the correct length, in order to catch updating errors - there have been
2133 some in the past. */
2134
2135 OP_TABLE_LENGTH
2136 };
2137
2138 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2139 definitions that follow must also be updated to match. There are also tables
2140 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
2141
2142
2143 /* This macro defines textual names for all the opcodes. These are used only
2144 for debugging, and some of them are only partial names. The macro is referenced
2145 only in pcre_printint.c, which fills out the full names in many cases (and in
2146 some cases doesn't actually use these names at all). */
2147
2148 #define OP_NAME_LIST \
2149 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
2150 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
2151 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
2152 "extuni", "\\Z", "\\z", \
2153 "^", "^", "$", "$", "char", "chari", "not", "noti", \
2154 "*", "*?", "+", "+?", "?", "??", \
2155 "{", "{", "{", \
2156 "*+","++", "?+", "{", \
2157 "*", "*?", "+", "+?", "?", "??", \
2158 "{", "{", "{", \
2159 "*+","++", "?+", "{", \
2160 "*", "*?", "+", "+?", "?", "??", \
2161 "{", "{", "{", \
2162 "*+","++", "?+", "{", \
2163 "*", "*?", "+", "+?", "?", "??", \
2164 "{", "{", "{", \
2165 "*+","++", "?+", "{", \
2166 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
2167 "*+","++", "?+", "{", \
2168 "*", "*?", "+", "+?", "?", "??", "{", "{", \
2169 "class", "nclass", "xclass", "Ref", "Refi", \
2170 "Recurse", "Callout", \
2171 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
2172 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
2173 "Once", "Once_NC", \
2174 "Bra", "BraPos", "CBra", "CBraPos", \
2175 "Cond", \
2176 "SBra", "SBraPos", "SCBra", "SCBraPos", \
2177 "SCond", \
2178 "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
2179 "Brazero", "Braminzero", "Braposzero", \
2180 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
2181 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
2182 "*ACCEPT", "*ASSERT_ACCEPT", \
2183 "Close", "Skip zero"
2184
2185
2186 /* This macro defines the length of fixed length operations in the compiled
2187 regex. The lengths are used when searching for specific things, and also in the
2188 debugging printing of a compiled regex. We use a macro so that it can be
2189 defined close to the definitions of the opcodes themselves.
2190
2191 As things have been extended, some of these are no longer fixed lenths, but are
2192 minima instead. For example, the length of a single-character repeat may vary
2193 in UTF-8 mode. The code that uses this table must know about such things. */
2194
2195 #define OP_LENGTHS \
2196 1, /* End */ \
2197 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
2198 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
2199 1, 1, 1, /* Any, AllAny, Anybyte */ \
2200 3, 3, /* \P, \p */ \
2201 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
2202 1, /* \X */ \
2203 1, 1, 1, 1, 1, 1, /* \Z, \z, ^, ^M, $, $M */ \
2204 2, /* Char - the minimum length */ \
2205 2, /* Chari - the minimum length */ \
2206 2, /* not */ \
2207 2, /* noti */ \
2208 /* Positive single-char repeats ** These are */ \
2209 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
2210 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto, minupto ** mode */ \
2211 2+IMM2_SIZE, /* exact */ \
2212 2, 2, 2, 2+IMM2_SIZE, /* *+, ++, ?+, upto+ */ \
2213 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
2214 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto I, minupto I */ \
2215 2+IMM2_SIZE, /* exact I */ \
2216 2, 2, 2, 2+IMM2_SIZE, /* *+I, ++I, ?+I, upto+I */ \
2217 /* Negative single-char repeats - only for chars < 256 */ \
2218 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
2219 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto, minupto */ \
2220 2+IMM2_SIZE, /* NOT exact */ \
2221 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *, +, ?, upto */ \
2222 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
2223 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto I, minupto I */ \
2224 2+IMM2_SIZE, /* NOT exact I */ \
2225 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *I, +I, ?I, upto I */ \
2226 /* Positive type repeats */ \
2227 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
2228 2+IMM2_SIZE, 2+IMM2_SIZE, /* Type upto, minupto */ \
2229 2+IMM2_SIZE, /* Type exact */ \
2230 2, 2, 2, 2+IMM2_SIZE, /* Possessive *+, ++, ?+, upto+ */ \
2231 /* Character class & ref repeats */ \
2232 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
2233 1+2*IMM2_SIZE, 1+2*IMM2_SIZE, /* CRRANGE, CRMINRANGE */ \
2234 1+(32/sizeof(pcre_uchar)), /* CLASS */ \
2235 1+(32/sizeof(pcre_uchar)), /* NCLASS */ \
2236 0, /* XCLASS - variable length */ \
2237 1+IMM2_SIZE, /* REF */ \
2238 1+IMM2_SIZE, /* REFI */ \
2239 1+LINK_SIZE, /* RECURSE */ \
2240 2+2*LINK_SIZE, /* CALLOUT */ \
2241 1+LINK_SIZE, /* Alt */ \
2242 1+LINK_SIZE, /* Ket */ \
2243 1+LINK_SIZE, /* KetRmax */ \
2244 1+LINK_SIZE, /* KetRmin */ \
2245 1+LINK_SIZE, /* KetRpos */ \
2246 1+LINK_SIZE, /* Reverse */ \
2247 1+LINK_SIZE, /* Assert */ \
2248 1+LINK_SIZE, /* Assert not */ \
2249 1+LINK_SIZE, /* Assert behind */ \
2250 1+LINK_SIZE, /* Assert behind not */ \
2251 1+LINK_SIZE, /* ONCE */ \
2252 1+LINK_SIZE, /* ONCE_NC */ \
2253 1+LINK_SIZE, /* BRA */ \
2254 1+LINK_SIZE, /* BRAPOS */ \
2255 1+LINK_SIZE+IMM2_SIZE, /* CBRA */ \
2256 1+LINK_SIZE+IMM2_SIZE, /* CBRAPOS */ \
2257 1+LINK_SIZE, /* COND */ \
2258 1+LINK_SIZE, /* SBRA */ \
2259 1+LINK_SIZE, /* SBRAPOS */ \
2260 1+LINK_SIZE+IMM2_SIZE, /* SCBRA */ \
2261 1+LINK_SIZE+IMM2_SIZE, /* SCBRAPOS */ \
2262 1+LINK_SIZE, /* SCOND */ \
2263 1+IMM2_SIZE, 1+IMM2_SIZE, /* CREF, NCREF */ \
2264 1+IMM2_SIZE, 1+IMM2_SIZE, /* RREF, NRREF */ \
2265 1, /* DEF */ \
2266 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
2267 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
2268 1, 3, /* SKIP, SKIP_ARG */ \
2269 1, 3, /* THEN, THEN_ARG */ \
2270 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
2271 1+IMM2_SIZE, 1 /* CLOSE, SKIPZERO */
2272
2273 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2274 condition. */
2275
2276 #define RREF_ANY 0xffff
2277
2278 /* Compile time error code numbers. They are given names so that they can more
2279 easily be tracked. When a new number is added, the table called eint in
2280 pcreposix.c must be updated. */
2281
2282 enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
2283 ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2284 ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2285 ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2286 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2287 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2288 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2289 ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERR78, ERRCOUNT };
2290
2291 /* JIT compiling modes. The function list is indexed by them. */
2292 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2293 JIT_NUMBER_OF_COMPILE_MODES };
2294
2295 /* The real format of the start of the pcre block; the index of names and the
2296 code vector run on as long as necessary after the end. We store an explicit
2297 offset to the name table so that if a regex is compiled on one host, saved, and
2298 then run on another where the size of pointers is different, all might still
2299 be well.
2300
2301 The size of the structure must be a multiple of 8 bytes. For the case of
2302 compiled-on-4 and run-on-8, we include an extra pointer that is always NULL so
2303 that there are an even number of pointers which therefore are a multiple of 8
2304 bytes.
2305
2306 It is necessary to fork the struct for the 32 bit library, since it needs to
2307 use pcre_uint32 for first_char and req_char. We can't put an ifdef inside the
2308 typedef because pcretest needs access to the struct of the 8-, 16- and 32-bit
2309 variants.
2310
2311 *** WARNING ***
2312 When new fields are added to these structures, remember to adjust the code in
2313 pcre_byte_order.c that is concerned with swapping the byte order of the fields
2314 when a compiled regex is reloaded on a host with different endianness.
2315 *** WARNING ***
2316 There is also similar byte-flipping code in pcretest.c, which is used for
2317 testing the byte-flipping features. It must also be kept in step.
2318 *** WARNING ***
2319 */
2320
2321 typedef struct real_pcre8_or_16 {
2322 pcre_uint32 magic_number;
2323 pcre_uint32 size; /* Total that was malloced */
2324 pcre_uint32 options; /* Public options */
2325 pcre_uint32 flags; /* Private flags */
2326 pcre_uint32 limit_match; /* Limit set from regex */
2327 pcre_uint32 limit_recursion; /* Limit set from regex */
2328 pcre_uint16 first_char; /* Starting character */
2329 pcre_uint16 req_char; /* This character must be seen */
2330 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2331 pcre_uint16 top_bracket; /* Highest numbered group */
2332 pcre_uint16 top_backref; /* Highest numbered back reference */
2333 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2334 pcre_uint16 name_entry_size; /* Size of any name items */
2335 pcre_uint16 name_count; /* Number of name items */
2336 pcre_uint16 ref_count; /* Reference count */
2337 pcre_uint16 dummy1; /* To ensure size is a multiple of 8 */
2338 pcre_uint16 dummy2; /* To ensure size is a multiple of 8 */
2339 pcre_uint16 dummy3; /* To ensure size is a multiple of 8 */
2340 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2341 void *nullpad; /* NULL padding */
2342 } real_pcre8_or_16;
2343
2344 typedef struct real_pcre8_or_16 real_pcre;
2345 typedef struct real_pcre8_or_16 real_pcre16;
2346
2347 typedef struct real_pcre32 {
2348 pcre_uint32 magic_number;
2349 pcre_uint32 size; /* Total that was malloced */
2350 pcre_uint32 options; /* Public options */
2351 pcre_uint32 flags; /* Private flags */
2352 pcre_uint32 limit_match; /* Limit set from regex */
2353 pcre_uint32 limit_recursion; /* Limit set from regex */
2354 pcre_uint32 first_char; /* Starting character */
2355 pcre_uint32 req_char; /* This character must be seen */
2356 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2357 pcre_uint16 top_bracket; /* Highest numbered group */
2358 pcre_uint16 top_backref; /* Highest numbered back reference */
2359 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2360 pcre_uint16 name_entry_size; /* Size of any name items */
2361 pcre_uint16 name_count; /* Number of name items */
2362 pcre_uint16 ref_count; /* Reference count */
2363 pcre_uint16 dummy; /* To ensure size is a multiple of 8 */
2364 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2365 void *nullpad; /* NULL padding */
2366 } real_pcre32;
2367
2368 #if defined COMPILE_PCRE8
2369 #define REAL_PCRE real_pcre
2370 #elif defined COMPILE_PCRE16
2371 #define REAL_PCRE real_pcre16
2372 #elif defined COMPILE_PCRE32
2373 #define REAL_PCRE real_pcre32
2374 #endif
2375
2376 /* Assert that the size of REAL_PCRE is divisible by 8 */
2377 typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2378
2379 /* Needed in pcretest to access some fields in the real_pcre* structures
2380 * directly. They're unified for 8/16/32 bits since the structs only differ
2381 * after these fields; if that ever changes, need to fork those defines into
2382 * 8/16 and 32 bit versions. */
2383 #define REAL_PCRE_MAGIC(re) (((REAL_PCRE*)re)->magic_number)
2384 #define REAL_PCRE_SIZE(re) (((REAL_PCRE*)re)->size)
2385 #define REAL_PCRE_OPTIONS(re) (((REAL_PCRE*)re)->options)
2386 #define REAL_PCRE_FLAGS(re) (((REAL_PCRE*)re)->flags)
2387
2388 /* The format of the block used to store data from pcre_study(). The same
2389 remark (see NOTE above) about extending this structure applies. */
2390
2391 typedef struct pcre_study_data {
2392 pcre_uint32 size; /* Total that was malloced */
2393 pcre_uint32 flags; /* Private flags */
2394 pcre_uint8 start_bits[32]; /* Starting char bits */
2395 pcre_uint32 minlength; /* Minimum subject length */
2396 } pcre_study_data;
2397
2398 /* Structure for building a chain of open capturing subpatterns during
2399 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2400 encountered. This is also used to identify subpatterns that contain recursive
2401 back references to themselves, so that they can be made atomic. */
2402
2403 typedef struct open_capitem {
2404 struct open_capitem *next; /* Chain link */
2405 pcre_uint16 number; /* Capture number */
2406 pcre_uint16 flag; /* Set TRUE if recursive back ref */
2407 } open_capitem;
2408
2409 /* Structure for passing "static" information around between the functions
2410 doing the compiling, so that they are thread-safe. */
2411
2412 typedef struct compile_data {
2413 const pcre_uint8 *lcc; /* Points to lower casing table */
2414 const pcre_uint8 *fcc; /* Points to case-flipping table */
2415 const pcre_uint8 *cbits; /* Points to character type table */
2416 const pcre_uint8 *ctypes; /* Points to table of type maps */
2417 const pcre_uchar *start_workspace;/* The start of working space */
2418 const pcre_uchar *start_code; /* The start of the compiled code */
2419 const pcre_uchar *start_pattern; /* The start of the pattern */
2420 const pcre_uchar *end_pattern; /* The end of the pattern */
2421 open_capitem *open_caps; /* Chain of open capture items */
2422 pcre_uchar *hwm; /* High watermark of workspace */
2423 pcre_uchar *name_table; /* The name/number table */
2424 int names_found; /* Number of entries so far */
2425 int name_entry_size; /* Size of each entry */
2426 int workspace_size; /* Size of workspace */
2427 unsigned int bracount; /* Count of capturing parens as we compile */
2428 int final_bracount; /* Saved value after first pass */
2429 int max_lookbehind; /* Maximum lookbehind (characters) */
2430 int top_backref; /* Maximum back reference */
2431 unsigned int backref_map; /* Bitmap of low back refs */
2432 int assert_depth; /* Depth of nested assertions */
2433 pcre_uint32 external_options; /* External (initial) options */
2434 pcre_uint32 external_flags; /* External flag bits to be set */
2435 int req_varyopt; /* "After variable item" flag for reqbyte */
2436 BOOL had_accept; /* (*ACCEPT) encountered */
2437 BOOL had_pruneorskip; /* (*PRUNE) or (*SKIP) encountered */
2438 BOOL check_lookbehind; /* Lookbehinds need later checking */
2439 int nltype; /* Newline type */
2440 int nllen; /* Newline string length */
2441 pcre_uchar nl[4]; /* Newline string when fixed length */
2442 } compile_data;
2443
2444 /* Structure for maintaining a chain of pointers to the currently incomplete
2445 branches, for testing for left recursion while compiling. */
2446
2447 typedef struct branch_chain {
2448 struct branch_chain *outer;
2449 pcre_uchar *current_branch;
2450 } branch_chain;
2451
2452 /* Structure for items in a linked list that represents an explicit recursive
2453 call within the pattern; used by pcre_exec(). */
2454
2455 typedef struct recursion_info {
2456 struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2457 unsigned int group_num; /* Number of group that was called */
2458 int *offset_save; /* Pointer to start of saved offsets */
2459 int saved_max; /* Number of saved offsets */
2460 int saved_capture_last; /* Last capture number */
2461 PCRE_PUCHAR subject_position; /* Position at start of recursion */
2462 } recursion_info;
2463
2464 /* A similar structure for pcre_dfa_exec(). */
2465
2466 typedef struct dfa_recursion_info {
2467 struct dfa_recursion_info *prevrec;
2468 int group_num;
2469 PCRE_PUCHAR subject_position;
2470 } dfa_recursion_info;
2471
2472 /* Structure for building a chain of data for holding the values of the subject
2473 pointer at the start of each subpattern, so as to detect when an empty string
2474 has been matched by a subpattern - to break infinite loops; used by
2475 pcre_exec(). */
2476
2477 typedef struct eptrblock {
2478 struct eptrblock *epb_prev;
2479 PCRE_PUCHAR epb_saved_eptr;
2480 } eptrblock;
2481
2482
2483 /* Structure for passing "static" information around between the functions
2484 doing traditional NFA matching, so that they are thread-safe. */
2485
2486 typedef struct match_data {
2487 unsigned long int match_call_count; /* As it says */
2488 unsigned long int match_limit; /* As it says */
2489 unsigned long int match_limit_recursion; /* As it says */
2490 int *offset_vector; /* Offset vector */
2491 int offset_end; /* One past the end */
2492 int offset_max; /* The maximum usable for return data */
2493 int nltype; /* Newline type */
2494 int nllen; /* Newline string length */
2495 int name_count; /* Number of names in name table */
2496 int name_entry_size; /* Size of entry in names table */
2497 unsigned int skip_arg_count; /* For counting SKIP_ARGs */
2498 unsigned int ignore_skip_arg; /* For re-run when SKIP arg name not found */
2499 pcre_uchar *name_table; /* Table of names */
2500 pcre_uchar nl[4]; /* Newline string when fixed */
2501 const pcre_uint8 *lcc; /* Points to lower casing table */
2502 const pcre_uint8 *fcc; /* Points to case-flipping table */
2503 const pcre_uint8 *ctypes; /* Points to table of type maps */
2504 BOOL notbol; /* NOTBOL flag */
2505 BOOL noteol; /* NOTEOL flag */
2506 BOOL utf; /* UTF-8 / UTF-16 flag */
2507 BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
2508 BOOL use_ucp; /* PCRE_UCP flag */
2509 BOOL endonly; /* Dollar not before final \n */
2510 BOOL notempty; /* Empty string match not wanted */
2511 BOOL notempty_atstart; /* Empty string match at start not wanted */
2512 BOOL hitend; /* Hit the end of the subject at some point */
2513 BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
2514 BOOL hasthen; /* Pattern contains (*THEN) */
2515 const pcre_uchar *start_code; /* For use when recursing */
2516 PCRE_PUCHAR start_subject; /* Start of the subject string */
2517 PCRE_PUCHAR end_subject; /* End of the subject string */
2518 PCRE_PUCHAR start_match_ptr; /* Start of matched string */
2519 PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
2520 PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
2521 int partial; /* PARTIAL options */
2522 int end_offset_top; /* Highwater mark at end of match */
2523 pcre_int32 capture_last; /* Most recent capture number + overflow flag */
2524 int start_offset; /* The start offset value */
2525 int match_function_type; /* Set for certain special calls of MATCH() */
2526 eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
2527 int eptrn; /* Next free eptrblock */
2528 recursion_info *recursive; /* Linked list of recursion data */
2529 void *callout_data; /* To pass back to callouts */
2530 const pcre_uchar *mark; /* Mark pointer to pass back on success */
2531 const pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2532 const pcre_uchar *once_target; /* Where to back up to for atomic groups */
2533 #ifdef NO_RECURSE
2534 void *match_frames_base; /* For remembering malloc'd frames */
2535 #endif
2536 } match_data;
2537
2538 /* A similar structure is used for the same purpose by the DFA matching
2539 functions. */
2540
2541 typedef struct dfa_match_data {
2542 const pcre_uchar *start_code; /* Start of the compiled pattern */
2543 const pcre_uchar *start_subject ; /* Start of the subject string */
2544 const pcre_uchar *end_subject; /* End of subject string */
2545 const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2546 const pcre_uint8 *tables; /* Character tables */
2547 int start_offset; /* The start offset value */
2548 int moptions; /* Match options */
2549 int poptions; /* Pattern options */
2550 int nltype; /* Newline type */
2551 int nllen; /* Newline string length */
2552 pcre_uchar nl[4]; /* Newline string when fixed */
2553 void *callout_data; /* To pass back to callouts */
2554 dfa_recursion_info *recursive; /* Linked list of recursion data */
2555 } dfa_match_data;
2556
2557 /* Bit definitions for entries in the pcre_ctypes table. */
2558
2559 #define ctype_space 0x01
2560 #define ctype_letter 0x02
2561 #define ctype_digit 0x04
2562 #define ctype_xdigit 0x08
2563 #define ctype_word 0x10 /* alphanumeric or '_' */
2564 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
2565
2566 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2567 of bits for a class map. Some classes are built by combining these tables. */
2568
2569 #define cbit_space 0 /* [:space:] or \s */
2570 #define cbit_xdigit 32 /* [:xdigit:] */
2571 #define cbit_digit 64 /* [:digit:] or \d */
2572 #define cbit_upper 96 /* [:upper:] */
2573 #define cbit_lower 128 /* [:lower:] */
2574 #define cbit_word 160 /* [:word:] or \w */
2575 #define cbit_graph 192 /* [:graph:] */
2576 #define cbit_print 224 /* [:print:] */
2577 #define cbit_punct 256 /* [:punct:] */
2578 #define cbit_cntrl 288 /* [:cntrl:] */
2579 #define cbit_length 320 /* Length of the cbits table */
2580
2581 /* Offsets of the various tables from the base tables pointer, and
2582 total length. */
2583
2584 #define lcc_offset 0
2585 #define fcc_offset 256
2586 #define cbits_offset 512
2587 #define ctypes_offset (cbits_offset + cbit_length)
2588 #define tables_length (ctypes_offset + 256)
2589
2590 /* Internal function and data prefixes. */
2591
2592 #if defined COMPILE_PCRE8
2593 #ifndef PUBL
2594 #define PUBL(name) pcre_##name
2595 #endif
2596 #ifndef PRIV
2597 #define PRIV(name) _pcre_##name
2598 #endif
2599 #elif defined COMPILE_PCRE16
2600 #ifndef PUBL
2601 #define PUBL(name) pcre16_##name
2602 #endif
2603 #ifndef PRIV
2604 #define PRIV(name) _pcre16_##name
2605 #endif
2606 #elif defined COMPILE_PCRE32
2607 #ifndef PUBL
2608 #define PUBL(name) pcre32_##name
2609 #endif
2610 #ifndef PRIV
2611 #define PRIV(name) _pcre32_##name
2612 #endif
2613 #else
2614 #error Unsupported compiling mode
2615 #endif /* COMPILE_PCRE[8|16|32] */
2616
2617 /* Layout of the UCP type table that translates property names into types and
2618 codes. Each entry used to point directly to a name, but to reduce the number of
2619 relocations in shared libraries, it now has an offset into a single string
2620 instead. */
2621
2622 typedef struct {
2623 pcre_uint16 name_offset;
2624 pcre_uint16 type;
2625 pcre_uint16 value;
2626 } ucp_type_table;
2627
2628
2629 /* Internal shared data tables. These are tables that are used by more than one
2630 of the exported public functions. They have to be "external" in the C sense,
2631 but are not part of the PCRE public API. The data for these tables is in the
2632 pcre_tables.c module. */
2633
2634 #ifdef COMPILE_PCRE8
2635 extern const int PRIV(utf8_table1)[];
2636 extern const int PRIV(utf8_table1_size);
2637 extern const int PRIV(utf8_table2)[];
2638 extern const int PRIV(utf8_table3)[];
2639 extern const pcre_uint8 PRIV(utf8_table4)[];
2640 #endif /* COMPILE_PCRE8 */
2641
2642 extern const char PRIV(utt_names)[];
2643 extern const ucp_type_table PRIV(utt)[];
2644 extern const int PRIV(utt_size);
2645
2646 extern const pcre_uint8 PRIV(OP_lengths)[];
2647 extern const pcre_uint8 PRIV(default_tables)[];
2648
2649 extern const pcre_uint32 PRIV(hspace_list)[];
2650 extern const pcre_uint32 PRIV(vspace_list)[];
2651
2652
2653 /* Internal shared functions. These are functions that are used by more than
2654 one of the exported public functions. They have to be "external" in the C
2655 sense, but are not part of the PCRE public API. */
2656
2657 /* String comparison functions. */
2658 #if defined COMPILE_PCRE8
2659
2660 #define STRCMP_UC_UC(str1, str2) \
2661 strcmp((char *)(str1), (char *)(str2))
2662 #define STRCMP_UC_C8(str1, str2) \
2663 strcmp((char *)(str1), (str2))
2664 #define STRNCMP_UC_UC(str1, str2, num) \
2665 strncmp((char *)(str1), (char *)(str2), (num))
2666 #define STRNCMP_UC_C8(str1, str2, num) \
2667 strncmp((char *)(str1), (str2), (num))
2668 #define STRLEN_UC(str) strlen((const char *)str)
2669
2670 #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2671
2672 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2673 const pcre_uchar *);
2674 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2675 const char *);
2676 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2677 const pcre_uchar *, unsigned int num);
2678 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2679 const char *, unsigned int num);
2680 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2681
2682 #define STRCMP_UC_UC(str1, str2) \
2683 PRIV(strcmp_uc_uc)((str1), (str2))
2684 #define STRCMP_UC_C8(str1, str2) \
2685 PRIV(strcmp_uc_c8)((str1), (str2))
2686 #define STRNCMP_UC_UC(str1, str2, num) \
2687 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2688 #define STRNCMP_UC_C8(str1, str2, num) \
2689 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2690 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2691
2692 #endif /* COMPILE_PCRE[8|16|32] */
2693
2694 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
2695
2696 #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
2697 #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
2698
2699 #elif defined COMPILE_PCRE32
2700
2701 extern int PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
2702 const pcre_uchar *);
2703 extern int PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
2704 const char *);
2705
2706 #define STRCMP_UC_UC_TEST(str1, str2) \
2707 (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
2708 #define STRCMP_UC_C8_TEST(str1, str2) \
2709 (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
2710
2711 #endif /* COMPILE_PCRE[8|16|32] */
2712
2713 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2714 extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2715 int *, BOOL);
2716 extern unsigned int PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2717 extern int PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2718 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2719 int *, BOOL);
2720 extern BOOL PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
2721
2722 #ifdef SUPPORT_JIT
2723 extern void PRIV(jit_compile)(const REAL_PCRE *,
2724 PUBL(extra) *, int);
2725 extern int PRIV(jit_exec)(const PUBL(extra) *,
2726 const pcre_uchar *, int, int, int, int *, int);
2727 extern void PRIV(jit_free)(void *);
2728 extern int PRIV(jit_get_size)(void *);
2729 extern const char* PRIV(jit_get_target)(void);
2730 #endif
2731
2732 /* Unicode character database (UCD) */
2733
2734 typedef struct {
2735 pcre_uint8 script; /* ucp_Arabic, etc. */
2736 pcre_uint8 chartype; /* ucp_Cc, etc. (general categories) */
2737 pcre_uint8 gbprop; /* ucp_gbControl, etc. (grapheme break property) */
2738 pcre_uint8 caseset; /* offset to multichar other cases or zero */
2739 pcre_int32 other_case; /* offset to other case, or zero if none */
2740 } ucd_record;
2741
2742 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2743 extern const ucd_record PRIV(ucd_records)[];
2744 extern const pcre_uint8 PRIV(ucd_stage1)[];
2745 extern const pcre_uint16 PRIV(ucd_stage2)[];
2746 extern const pcre_uint32 PRIV(ucp_gentype)[];
2747 extern const pcre_uint32 PRIV(ucp_gbtable)[];
2748 #ifdef SUPPORT_JIT
2749 extern const int PRIV(ucp_typerange)[];
2750 #endif
2751
2752 #ifdef SUPPORT_UCP
2753 /* UCD access macros */
2754
2755 #define UCD_BLOCK_SIZE 128
2756 #define GET_UCD(ch) (PRIV(ucd_records) + \
2757 PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
2758 UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
2759
2760 #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2761 #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2762 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2763 #define UCD_GRAPHBREAK(ch) GET_UCD(ch)->gbprop
2764 #define UCD_CASESET(ch) GET_UCD(ch)->caseset
2765 #define UCD_OTHERCASE(ch) ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
2766
2767 #endif /* SUPPORT_UCP */
2768
2769 #endif
2770
2771 /* End of pcre_internal.h */

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