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Revision 1363 - (show annotations)
Tue Oct 1 16:54:40 2013 UTC (6 years, 2 months ago) by ph10
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File size: 112453 byte(s)
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Refactored auto-possessification code.
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 #define PCRE_MATCH_EMPTY 0x00008000 /* pattern can match empty string */
1153
1154 #if defined COMPILE_PCRE8
1155 #define PCRE_MODE PCRE_MODE8
1156 #elif defined COMPILE_PCRE16
1157 #define PCRE_MODE PCRE_MODE16
1158 #elif defined COMPILE_PCRE32
1159 #define PCRE_MODE PCRE_MODE32
1160 #endif
1161 #define PCRE_MODE_MASK (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
1162
1163 /* Flags for the "extra" block produced by pcre_study(). */
1164
1165 #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
1166 #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
1167
1168 /* Masks for identifying the public options that are permitted at compile
1169 time, run time, or study time, respectively. */
1170
1171 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
1172 PCRE_NEWLINE_ANYCRLF)
1173
1174 #define PUBLIC_COMPILE_OPTIONS \
1175 (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
1176 PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
1177 PCRE_NO_AUTO_CAPTURE|PCRE_NO_AUTO_POSSESSIFY| \
1178 PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1179 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1180 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE|PCRE_NEVER_UTF)
1181
1182 #define PUBLIC_EXEC_OPTIONS \
1183 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1184 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
1185 PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
1186
1187 #define PUBLIC_DFA_EXEC_OPTIONS \
1188 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1189 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
1190 PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1191 PCRE_NO_START_OPTIMIZE)
1192
1193 #define PUBLIC_STUDY_OPTIONS \
1194 (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
1195 PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1196
1197 #define PUBLIC_JIT_EXEC_OPTIONS \
1198 (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
1199 PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
1200
1201 /* Magic number to provide a small check against being handed junk. */
1202
1203 #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
1204
1205 /* This variable is used to detect a loaded regular expression
1206 in different endianness. */
1207
1208 #define REVERSED_MAGIC_NUMBER 0x45524350UL /* 'ERCP' */
1209
1210 /* The maximum remaining length of subject we are prepared to search for a
1211 req_byte match. */
1212
1213 #define REQ_BYTE_MAX 1000
1214
1215 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1216 environments where these macros are defined elsewhere. Unfortunately, there
1217 is no way to do the same for the typedef. */
1218
1219 typedef int BOOL;
1220
1221 #ifndef FALSE
1222 #define FALSE 0
1223 #define TRUE 1
1224 #endif
1225
1226 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1227 character constants like '*' because the compiler would emit their EBCDIC code,
1228 which is different from their ASCII/UTF-8 code. Instead we define macros for
1229 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1230 is enabled. When UTF-8 support is not enabled, the definitions use character
1231 literals. Both character and string versions of each character are needed, and
1232 there are some longer strings as well.
1233
1234 This means that, on EBCDIC platforms, the PCRE library can handle either
1235 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1236 would need different lookups depending on whether PCRE_UTF8 was set or not.
1237 This would make it impossible to use characters in switch/case statements,
1238 which would reduce performance. For a theoretical use (which nobody has asked
1239 for) in a minority area (EBCDIC platforms), this is not sensible. Any
1240 application that did need both could compile two versions of the library, using
1241 macros to give the functions distinct names. */
1242
1243 #ifndef SUPPORT_UTF
1244
1245 /* UTF-8 support is not enabled; use the platform-dependent character literals
1246 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1247 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1248 characters, a common practice has been to use its NL (0x15) character as the
1249 line terminator in C-like processing environments. However, sometimes the LF
1250 (0x25) character is used instead, according to this Unicode document:
1251
1252 http://unicode.org/standard/reports/tr13/tr13-5.html
1253
1254 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1255 instead. Whichever is *not* chosen is defined as NEL.
1256
1257 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1258 same code point. */
1259
1260 #ifdef EBCDIC
1261
1262 #ifndef EBCDIC_NL25
1263 #define CHAR_NL '\x15'
1264 #define CHAR_NEL '\x25'
1265 #define STR_NL "\x15"
1266 #define STR_NEL "\x25"
1267 #else
1268 #define CHAR_NL '\x25'
1269 #define CHAR_NEL '\x15'
1270 #define STR_NL "\x25"
1271 #define STR_NEL "\x15"
1272 #endif
1273
1274 #define CHAR_LF CHAR_NL
1275 #define STR_LF STR_NL
1276
1277 #define CHAR_ESC '\047'
1278 #define CHAR_DEL '\007'
1279 #define STR_ESC "\047"
1280 #define STR_DEL "\007"
1281
1282 #else /* Not EBCDIC */
1283
1284 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1285 compatibility. NEL is the Unicode newline character; make sure it is
1286 a positive value. */
1287
1288 #define CHAR_LF '\n'
1289 #define CHAR_NL CHAR_LF
1290 #define CHAR_NEL ((unsigned char)'\x85')
1291 #define CHAR_ESC '\033'
1292 #define CHAR_DEL '\177'
1293
1294 #define STR_LF "\n"
1295 #define STR_NL STR_LF
1296 #define STR_NEL "\x85"
1297 #define STR_ESC "\033"
1298 #define STR_DEL "\177"
1299
1300 #endif /* EBCDIC */
1301
1302 /* The remaining definitions work in both environments. */
1303
1304 #define CHAR_NULL '\0'
1305 #define CHAR_HT '\t'
1306 #define CHAR_VT '\v'
1307 #define CHAR_FF '\f'
1308 #define CHAR_CR '\r'
1309 #define CHAR_BS '\b'
1310 #define CHAR_BEL '\a'
1311
1312 #define CHAR_SPACE ' '
1313 #define CHAR_EXCLAMATION_MARK '!'
1314 #define CHAR_QUOTATION_MARK '"'
1315 #define CHAR_NUMBER_SIGN '#'
1316 #define CHAR_DOLLAR_SIGN '$'
1317 #define CHAR_PERCENT_SIGN '%'
1318 #define CHAR_AMPERSAND '&'
1319 #define CHAR_APOSTROPHE '\''
1320 #define CHAR_LEFT_PARENTHESIS '('
1321 #define CHAR_RIGHT_PARENTHESIS ')'
1322 #define CHAR_ASTERISK '*'
1323 #define CHAR_PLUS '+'
1324 #define CHAR_COMMA ','
1325 #define CHAR_MINUS '-'
1326 #define CHAR_DOT '.'
1327 #define CHAR_SLASH '/'
1328 #define CHAR_0 '0'
1329 #define CHAR_1 '1'
1330 #define CHAR_2 '2'
1331 #define CHAR_3 '3'
1332 #define CHAR_4 '4'
1333 #define CHAR_5 '5'
1334 #define CHAR_6 '6'
1335 #define CHAR_7 '7'
1336 #define CHAR_8 '8'
1337 #define CHAR_9 '9'
1338 #define CHAR_COLON ':'
1339 #define CHAR_SEMICOLON ';'
1340 #define CHAR_LESS_THAN_SIGN '<'
1341 #define CHAR_EQUALS_SIGN '='
1342 #define CHAR_GREATER_THAN_SIGN '>'
1343 #define CHAR_QUESTION_MARK '?'
1344 #define CHAR_COMMERCIAL_AT '@'
1345 #define CHAR_A 'A'
1346 #define CHAR_B 'B'
1347 #define CHAR_C 'C'
1348 #define CHAR_D 'D'
1349 #define CHAR_E 'E'
1350 #define CHAR_F 'F'
1351 #define CHAR_G 'G'
1352 #define CHAR_H 'H'
1353 #define CHAR_I 'I'
1354 #define CHAR_J 'J'
1355 #define CHAR_K 'K'
1356 #define CHAR_L 'L'
1357 #define CHAR_M 'M'
1358 #define CHAR_N 'N'
1359 #define CHAR_O 'O'
1360 #define CHAR_P 'P'
1361 #define CHAR_Q 'Q'
1362 #define CHAR_R 'R'
1363 #define CHAR_S 'S'
1364 #define CHAR_T 'T'
1365 #define CHAR_U 'U'
1366 #define CHAR_V 'V'
1367 #define CHAR_W 'W'
1368 #define CHAR_X 'X'
1369 #define CHAR_Y 'Y'
1370 #define CHAR_Z 'Z'
1371 #define CHAR_LEFT_SQUARE_BRACKET '['
1372 #define CHAR_BACKSLASH '\\'
1373 #define CHAR_RIGHT_SQUARE_BRACKET ']'
1374 #define CHAR_CIRCUMFLEX_ACCENT '^'
1375 #define CHAR_UNDERSCORE '_'
1376 #define CHAR_GRAVE_ACCENT '`'
1377 #define CHAR_a 'a'
1378 #define CHAR_b 'b'
1379 #define CHAR_c 'c'
1380 #define CHAR_d 'd'
1381 #define CHAR_e 'e'
1382 #define CHAR_f 'f'
1383 #define CHAR_g 'g'
1384 #define CHAR_h 'h'
1385 #define CHAR_i 'i'
1386 #define CHAR_j 'j'
1387 #define CHAR_k 'k'
1388 #define CHAR_l 'l'
1389 #define CHAR_m 'm'
1390 #define CHAR_n 'n'
1391 #define CHAR_o 'o'
1392 #define CHAR_p 'p'
1393 #define CHAR_q 'q'
1394 #define CHAR_r 'r'
1395 #define CHAR_s 's'
1396 #define CHAR_t 't'
1397 #define CHAR_u 'u'
1398 #define CHAR_v 'v'
1399 #define CHAR_w 'w'
1400 #define CHAR_x 'x'
1401 #define CHAR_y 'y'
1402 #define CHAR_z 'z'
1403 #define CHAR_LEFT_CURLY_BRACKET '{'
1404 #define CHAR_VERTICAL_LINE '|'
1405 #define CHAR_RIGHT_CURLY_BRACKET '}'
1406 #define CHAR_TILDE '~'
1407
1408 #define STR_HT "\t"
1409 #define STR_VT "\v"
1410 #define STR_FF "\f"
1411 #define STR_CR "\r"
1412 #define STR_BS "\b"
1413 #define STR_BEL "\a"
1414
1415 #define STR_SPACE " "
1416 #define STR_EXCLAMATION_MARK "!"
1417 #define STR_QUOTATION_MARK "\""
1418 #define STR_NUMBER_SIGN "#"
1419 #define STR_DOLLAR_SIGN "$"
1420 #define STR_PERCENT_SIGN "%"
1421 #define STR_AMPERSAND "&"
1422 #define STR_APOSTROPHE "'"
1423 #define STR_LEFT_PARENTHESIS "("
1424 #define STR_RIGHT_PARENTHESIS ")"
1425 #define STR_ASTERISK "*"
1426 #define STR_PLUS "+"
1427 #define STR_COMMA ","
1428 #define STR_MINUS "-"
1429 #define STR_DOT "."
1430 #define STR_SLASH "/"
1431 #define STR_0 "0"
1432 #define STR_1 "1"
1433 #define STR_2 "2"
1434 #define STR_3 "3"
1435 #define STR_4 "4"
1436 #define STR_5 "5"
1437 #define STR_6 "6"
1438 #define STR_7 "7"
1439 #define STR_8 "8"
1440 #define STR_9 "9"
1441 #define STR_COLON ":"
1442 #define STR_SEMICOLON ";"
1443 #define STR_LESS_THAN_SIGN "<"
1444 #define STR_EQUALS_SIGN "="
1445 #define STR_GREATER_THAN_SIGN ">"
1446 #define STR_QUESTION_MARK "?"
1447 #define STR_COMMERCIAL_AT "@"
1448 #define STR_A "A"
1449 #define STR_B "B"
1450 #define STR_C "C"
1451 #define STR_D "D"
1452 #define STR_E "E"
1453 #define STR_F "F"
1454 #define STR_G "G"
1455 #define STR_H "H"
1456 #define STR_I "I"
1457 #define STR_J "J"
1458 #define STR_K "K"
1459 #define STR_L "L"
1460 #define STR_M "M"
1461 #define STR_N "N"
1462 #define STR_O "O"
1463 #define STR_P "P"
1464 #define STR_Q "Q"
1465 #define STR_R "R"
1466 #define STR_S "S"
1467 #define STR_T "T"
1468 #define STR_U "U"
1469 #define STR_V "V"
1470 #define STR_W "W"
1471 #define STR_X "X"
1472 #define STR_Y "Y"
1473 #define STR_Z "Z"
1474 #define STR_LEFT_SQUARE_BRACKET "["
1475 #define STR_BACKSLASH "\\"
1476 #define STR_RIGHT_SQUARE_BRACKET "]"
1477 #define STR_CIRCUMFLEX_ACCENT "^"
1478 #define STR_UNDERSCORE "_"
1479 #define STR_GRAVE_ACCENT "`"
1480 #define STR_a "a"
1481 #define STR_b "b"
1482 #define STR_c "c"
1483 #define STR_d "d"
1484 #define STR_e "e"
1485 #define STR_f "f"
1486 #define STR_g "g"
1487 #define STR_h "h"
1488 #define STR_i "i"
1489 #define STR_j "j"
1490 #define STR_k "k"
1491 #define STR_l "l"
1492 #define STR_m "m"
1493 #define STR_n "n"
1494 #define STR_o "o"
1495 #define STR_p "p"
1496 #define STR_q "q"
1497 #define STR_r "r"
1498 #define STR_s "s"
1499 #define STR_t "t"
1500 #define STR_u "u"
1501 #define STR_v "v"
1502 #define STR_w "w"
1503 #define STR_x "x"
1504 #define STR_y "y"
1505 #define STR_z "z"
1506 #define STR_LEFT_CURLY_BRACKET "{"
1507 #define STR_VERTICAL_LINE "|"
1508 #define STR_RIGHT_CURLY_BRACKET "}"
1509 #define STR_TILDE "~"
1510
1511 #define STRING_ACCEPT0 "ACCEPT\0"
1512 #define STRING_COMMIT0 "COMMIT\0"
1513 #define STRING_F0 "F\0"
1514 #define STRING_FAIL0 "FAIL\0"
1515 #define STRING_MARK0 "MARK\0"
1516 #define STRING_PRUNE0 "PRUNE\0"
1517 #define STRING_SKIP0 "SKIP\0"
1518 #define STRING_THEN "THEN"
1519
1520 #define STRING_alpha0 "alpha\0"
1521 #define STRING_lower0 "lower\0"
1522 #define STRING_upper0 "upper\0"
1523 #define STRING_alnum0 "alnum\0"
1524 #define STRING_ascii0 "ascii\0"
1525 #define STRING_blank0 "blank\0"
1526 #define STRING_cntrl0 "cntrl\0"
1527 #define STRING_digit0 "digit\0"
1528 #define STRING_graph0 "graph\0"
1529 #define STRING_print0 "print\0"
1530 #define STRING_punct0 "punct\0"
1531 #define STRING_space0 "space\0"
1532 #define STRING_word0 "word\0"
1533 #define STRING_xdigit "xdigit"
1534
1535 #define STRING_DEFINE "DEFINE"
1536
1537 #define STRING_CR_RIGHTPAR "CR)"
1538 #define STRING_LF_RIGHTPAR "LF)"
1539 #define STRING_CRLF_RIGHTPAR "CRLF)"
1540 #define STRING_ANY_RIGHTPAR "ANY)"
1541 #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1542 #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1543 #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1544 #define STRING_UTF8_RIGHTPAR "UTF8)"
1545 #define STRING_UTF16_RIGHTPAR "UTF16)"
1546 #define STRING_UTF32_RIGHTPAR "UTF32)"
1547 #define STRING_UTF_RIGHTPAR "UTF)"
1548 #define STRING_UCP_RIGHTPAR "UCP)"
1549 #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1550 #define STRING_LIMIT_MATCH_EQ "LIMIT_MATCH="
1551 #define STRING_LIMIT_RECURSION_EQ "LIMIT_RECURSION="
1552
1553 #else /* SUPPORT_UTF */
1554
1555 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1556 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1557 only. */
1558
1559 #define CHAR_HT '\011'
1560 #define CHAR_VT '\013'
1561 #define CHAR_FF '\014'
1562 #define CHAR_CR '\015'
1563 #define CHAR_LF '\012'
1564 #define CHAR_NL CHAR_LF
1565 #define CHAR_NEL ((unsigned char)'\x85')
1566 #define CHAR_BS '\010'
1567 #define CHAR_BEL '\007'
1568 #define CHAR_ESC '\033'
1569 #define CHAR_DEL '\177'
1570
1571 #define CHAR_NULL '\0'
1572 #define CHAR_SPACE '\040'
1573 #define CHAR_EXCLAMATION_MARK '\041'
1574 #define CHAR_QUOTATION_MARK '\042'
1575 #define CHAR_NUMBER_SIGN '\043'
1576 #define CHAR_DOLLAR_SIGN '\044'
1577 #define CHAR_PERCENT_SIGN '\045'
1578 #define CHAR_AMPERSAND '\046'
1579 #define CHAR_APOSTROPHE '\047'
1580 #define CHAR_LEFT_PARENTHESIS '\050'
1581 #define CHAR_RIGHT_PARENTHESIS '\051'
1582 #define CHAR_ASTERISK '\052'
1583 #define CHAR_PLUS '\053'
1584 #define CHAR_COMMA '\054'
1585 #define CHAR_MINUS '\055'
1586 #define CHAR_DOT '\056'
1587 #define CHAR_SLASH '\057'
1588 #define CHAR_0 '\060'
1589 #define CHAR_1 '\061'
1590 #define CHAR_2 '\062'
1591 #define CHAR_3 '\063'
1592 #define CHAR_4 '\064'
1593 #define CHAR_5 '\065'
1594 #define CHAR_6 '\066'
1595 #define CHAR_7 '\067'
1596 #define CHAR_8 '\070'
1597 #define CHAR_9 '\071'
1598 #define CHAR_COLON '\072'
1599 #define CHAR_SEMICOLON '\073'
1600 #define CHAR_LESS_THAN_SIGN '\074'
1601 #define CHAR_EQUALS_SIGN '\075'
1602 #define CHAR_GREATER_THAN_SIGN '\076'
1603 #define CHAR_QUESTION_MARK '\077'
1604 #define CHAR_COMMERCIAL_AT '\100'
1605 #define CHAR_A '\101'
1606 #define CHAR_B '\102'
1607 #define CHAR_C '\103'
1608 #define CHAR_D '\104'
1609 #define CHAR_E '\105'
1610 #define CHAR_F '\106'
1611 #define CHAR_G '\107'
1612 #define CHAR_H '\110'
1613 #define CHAR_I '\111'
1614 #define CHAR_J '\112'
1615 #define CHAR_K '\113'
1616 #define CHAR_L '\114'
1617 #define CHAR_M '\115'
1618 #define CHAR_N '\116'
1619 #define CHAR_O '\117'
1620 #define CHAR_P '\120'
1621 #define CHAR_Q '\121'
1622 #define CHAR_R '\122'
1623 #define CHAR_S '\123'
1624 #define CHAR_T '\124'
1625 #define CHAR_U '\125'
1626 #define CHAR_V '\126'
1627 #define CHAR_W '\127'
1628 #define CHAR_X '\130'
1629 #define CHAR_Y '\131'
1630 #define CHAR_Z '\132'
1631 #define CHAR_LEFT_SQUARE_BRACKET '\133'
1632 #define CHAR_BACKSLASH '\134'
1633 #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1634 #define CHAR_CIRCUMFLEX_ACCENT '\136'
1635 #define CHAR_UNDERSCORE '\137'
1636 #define CHAR_GRAVE_ACCENT '\140'
1637 #define CHAR_a '\141'
1638 #define CHAR_b '\142'
1639 #define CHAR_c '\143'
1640 #define CHAR_d '\144'
1641 #define CHAR_e '\145'
1642 #define CHAR_f '\146'
1643 #define CHAR_g '\147'
1644 #define CHAR_h '\150'
1645 #define CHAR_i '\151'
1646 #define CHAR_j '\152'
1647 #define CHAR_k '\153'
1648 #define CHAR_l '\154'
1649 #define CHAR_m '\155'
1650 #define CHAR_n '\156'
1651 #define CHAR_o '\157'
1652 #define CHAR_p '\160'
1653 #define CHAR_q '\161'
1654 #define CHAR_r '\162'
1655 #define CHAR_s '\163'
1656 #define CHAR_t '\164'
1657 #define CHAR_u '\165'
1658 #define CHAR_v '\166'
1659 #define CHAR_w '\167'
1660 #define CHAR_x '\170'
1661 #define CHAR_y '\171'
1662 #define CHAR_z '\172'
1663 #define CHAR_LEFT_CURLY_BRACKET '\173'
1664 #define CHAR_VERTICAL_LINE '\174'
1665 #define CHAR_RIGHT_CURLY_BRACKET '\175'
1666 #define CHAR_TILDE '\176'
1667
1668 #define STR_HT "\011"
1669 #define STR_VT "\013"
1670 #define STR_FF "\014"
1671 #define STR_CR "\015"
1672 #define STR_NL "\012"
1673 #define STR_BS "\010"
1674 #define STR_BEL "\007"
1675 #define STR_ESC "\033"
1676 #define STR_DEL "\177"
1677
1678 #define STR_SPACE "\040"
1679 #define STR_EXCLAMATION_MARK "\041"
1680 #define STR_QUOTATION_MARK "\042"
1681 #define STR_NUMBER_SIGN "\043"
1682 #define STR_DOLLAR_SIGN "\044"
1683 #define STR_PERCENT_SIGN "\045"
1684 #define STR_AMPERSAND "\046"
1685 #define STR_APOSTROPHE "\047"
1686 #define STR_LEFT_PARENTHESIS "\050"
1687 #define STR_RIGHT_PARENTHESIS "\051"
1688 #define STR_ASTERISK "\052"
1689 #define STR_PLUS "\053"
1690 #define STR_COMMA "\054"
1691 #define STR_MINUS "\055"
1692 #define STR_DOT "\056"
1693 #define STR_SLASH "\057"
1694 #define STR_0 "\060"
1695 #define STR_1 "\061"
1696 #define STR_2 "\062"
1697 #define STR_3 "\063"
1698 #define STR_4 "\064"
1699 #define STR_5 "\065"
1700 #define STR_6 "\066"
1701 #define STR_7 "\067"
1702 #define STR_8 "\070"
1703 #define STR_9 "\071"
1704 #define STR_COLON "\072"
1705 #define STR_SEMICOLON "\073"
1706 #define STR_LESS_THAN_SIGN "\074"
1707 #define STR_EQUALS_SIGN "\075"
1708 #define STR_GREATER_THAN_SIGN "\076"
1709 #define STR_QUESTION_MARK "\077"
1710 #define STR_COMMERCIAL_AT "\100"
1711 #define STR_A "\101"
1712 #define STR_B "\102"
1713 #define STR_C "\103"
1714 #define STR_D "\104"
1715 #define STR_E "\105"
1716 #define STR_F "\106"
1717 #define STR_G "\107"
1718 #define STR_H "\110"
1719 #define STR_I "\111"
1720 #define STR_J "\112"
1721 #define STR_K "\113"
1722 #define STR_L "\114"
1723 #define STR_M "\115"
1724 #define STR_N "\116"
1725 #define STR_O "\117"
1726 #define STR_P "\120"
1727 #define STR_Q "\121"
1728 #define STR_R "\122"
1729 #define STR_S "\123"
1730 #define STR_T "\124"
1731 #define STR_U "\125"
1732 #define STR_V "\126"
1733 #define STR_W "\127"
1734 #define STR_X "\130"
1735 #define STR_Y "\131"
1736 #define STR_Z "\132"
1737 #define STR_LEFT_SQUARE_BRACKET "\133"
1738 #define STR_BACKSLASH "\134"
1739 #define STR_RIGHT_SQUARE_BRACKET "\135"
1740 #define STR_CIRCUMFLEX_ACCENT "\136"
1741 #define STR_UNDERSCORE "\137"
1742 #define STR_GRAVE_ACCENT "\140"
1743 #define STR_a "\141"
1744 #define STR_b "\142"
1745 #define STR_c "\143"
1746 #define STR_d "\144"
1747 #define STR_e "\145"
1748 #define STR_f "\146"
1749 #define STR_g "\147"
1750 #define STR_h "\150"
1751 #define STR_i "\151"
1752 #define STR_j "\152"
1753 #define STR_k "\153"
1754 #define STR_l "\154"
1755 #define STR_m "\155"
1756 #define STR_n "\156"
1757 #define STR_o "\157"
1758 #define STR_p "\160"
1759 #define STR_q "\161"
1760 #define STR_r "\162"
1761 #define STR_s "\163"
1762 #define STR_t "\164"
1763 #define STR_u "\165"
1764 #define STR_v "\166"
1765 #define STR_w "\167"
1766 #define STR_x "\170"
1767 #define STR_y "\171"
1768 #define STR_z "\172"
1769 #define STR_LEFT_CURLY_BRACKET "\173"
1770 #define STR_VERTICAL_LINE "\174"
1771 #define STR_RIGHT_CURLY_BRACKET "\175"
1772 #define STR_TILDE "\176"
1773
1774 #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1775 #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1776 #define STRING_F0 STR_F "\0"
1777 #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1778 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1779 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1780 #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1781 #define STRING_THEN STR_T STR_H STR_E STR_N
1782
1783 #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1784 #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1785 #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1786 #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1787 #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1788 #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1789 #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1790 #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1791 #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1792 #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1793 #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1794 #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1795 #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1796 #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1797
1798 #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1799
1800 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1801 #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1802 #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1803 #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1804 #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1805 #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
1806 #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
1807 #define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1808 #define STRING_UTF16_RIGHTPAR STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1809 #define STRING_UTF32_RIGHTPAR STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1810 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1811 #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1812 #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
1813 #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
1814 #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
1815
1816 #endif /* SUPPORT_UTF */
1817
1818 /* Escape items that are just an encoding of a particular data value. */
1819
1820 #ifndef ESC_e
1821 #define ESC_e CHAR_ESC
1822 #endif
1823
1824 #ifndef ESC_f
1825 #define ESC_f CHAR_FF
1826 #endif
1827
1828 #ifndef ESC_n
1829 #define ESC_n CHAR_LF
1830 #endif
1831
1832 #ifndef ESC_r
1833 #define ESC_r CHAR_CR
1834 #endif
1835
1836 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1837 (presumably because of all the others like size_t). */
1838
1839 #ifndef ESC_tee
1840 #define ESC_tee CHAR_HT
1841 #endif
1842
1843 /* Codes for different types of Unicode property */
1844
1845 #define PT_ANY 0 /* Any property - matches all chars */
1846 #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1847 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1848 #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1849 #define PT_SC 4 /* Script (e.g. Han) */
1850 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1851 #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1852 #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1853 #define PT_WORD 8 /* Word - L plus N plus underscore */
1854 #define PT_CLIST 9 /* Pseudo-property: match character list */
1855 #define PT_UCNC 10 /* Universal Character nameable character */
1856 #define PT_TABSIZE 11 /* Size of square table for autopossessify tests */
1857
1858 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1859 contain characters with values greater than 255. */
1860
1861 #define XCL_NOT 0x01 /* Flag: this is a negative class */
1862 #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1863
1864 #define XCL_END 0 /* Marks end of individual items */
1865 #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1866 #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1867 #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1868 #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1869
1870 /* These are escaped items that aren't just an encoding of a particular data
1871 value such as \n. They must have non-zero values, as check_escape() returns
1872 0 for a data character. Also, they must appear in the same order as in the opcode
1873 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1874 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1875 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1876 non-DOTALL mode, "." behaves like \N.
1877
1878 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1879 when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1880 They must be contiguous, and remain in order so that the replacements can be
1881 looked up from a table.
1882
1883 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1884 check_escape(). There are two tests in the code for an escape
1885 greater than ESC_b and less than ESC_Z to detect the types that may be
1886 repeated. These are the types that consume characters. If any new escapes are
1887 put in between that don't consume a character, that code will have to change.
1888 */
1889
1890 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1891 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1892 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1893 ESC_E, ESC_Q, ESC_g, ESC_k,
1894 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1895
1896 /* Opcode table */
1897
1898
1899 /****** NOTE NOTE NOTE ******
1900
1901 Starting from 1 (i.e. after OP_END), the values up to OP_EOD must correspond in
1902 order to the list of escapes immediately above. Furthermore, values up to
1903 OP_DOLLM must not be changed without adjusting the table called autoposstab in
1904 pcre_compile.c
1905
1906 Whenever this list is updated, the two macro definitions that follow must also
1907 be updated to match. There are also tables called "coptable" and "poptable" in
1908 pcre_dfa_exec.c that must be updated.
1909
1910 ****** NOTE NOTE NOTE ******/
1911
1912
1913 /* The values between FIRST_AUTOTAB_OP and LAST_AUTOTAB_RIGHT_OP, inclusive,
1914 are used in a table for deciding whether a repeated character type can be
1915 auto-possessified. */
1916
1917 #define FIRST_AUTOTAB_OP OP_NOT_DIGIT
1918 #define LAST_AUTOTAB_LEFT_OP OP_EXTUNI
1919 #define LAST_AUTOTAB_RIGHT_OP OP_DOLLM
1920
1921 enum {
1922 OP_END, /* 0 End of pattern */
1923
1924 /* Values corresponding to backslashed metacharacters */
1925
1926 OP_SOD, /* 1 Start of data: \A */
1927 OP_SOM, /* 2 Start of match (subject + offset): \G */
1928 OP_SET_SOM, /* 3 Set start of match (\K) */
1929 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1930 OP_WORD_BOUNDARY, /* 5 \b */
1931 OP_NOT_DIGIT, /* 6 \D */
1932 OP_DIGIT, /* 7 \d */
1933 OP_NOT_WHITESPACE, /* 8 \S */
1934 OP_WHITESPACE, /* 9 \s */
1935 OP_NOT_WORDCHAR, /* 10 \W */
1936 OP_WORDCHAR, /* 11 \w */
1937
1938 OP_ANY, /* 12 Match any character except newline (\N) */
1939 OP_ALLANY, /* 13 Match any character */
1940 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1941 OP_NOTPROP, /* 15 \P (not Unicode property) */
1942 OP_PROP, /* 16 \p (Unicode property) */
1943 OP_ANYNL, /* 17 \R (any newline sequence) */
1944 OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1945 OP_HSPACE, /* 19 \h (horizontal whitespace) */
1946 OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1947 OP_VSPACE, /* 21 \v (vertical whitespace) */
1948 OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1949 OP_EODN, /* 23 End of data or \n at end of data (\Z) */
1950 OP_EOD, /* 24 End of data (\z) */
1951
1952 /* Line end assertions */
1953
1954 OP_DOLL, /* 25 End of line - not multiline */
1955 OP_DOLLM, /* 26 End of line - multiline */
1956 OP_CIRC, /* 27 Start of line - not multiline */
1957 OP_CIRCM, /* 28 Start of line - multiline */
1958
1959 /* Single characters; caseful must precede the caseless ones */
1960
1961 OP_CHAR, /* 29 Match one character, casefully */
1962 OP_CHARI, /* 30 Match one character, caselessly */
1963 OP_NOT, /* 31 Match one character, not the given one, casefully */
1964 OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1965
1966 /* The following sets of 13 opcodes must always be kept in step because
1967 the offset from the first one is used to generate the others. */
1968
1969 /* Repeated characters; caseful must precede the caseless ones */
1970
1971 OP_STAR, /* 33 The maximizing and minimizing versions of */
1972 OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1973 OP_PLUS, /* 35 the minimizing one second. */
1974 OP_MINPLUS, /* 36 */
1975 OP_QUERY, /* 37 */
1976 OP_MINQUERY, /* 38 */
1977
1978 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1979 OP_MINUPTO, /* 40 */
1980 OP_EXACT, /* 41 Exactly n matches */
1981
1982 OP_POSSTAR, /* 42 Possessified star, caseful */
1983 OP_POSPLUS, /* 43 Possessified plus, caseful */
1984 OP_POSQUERY, /* 44 Posesssified query, caseful */
1985 OP_POSUPTO, /* 45 Possessified upto, caseful */
1986
1987 /* Repeated characters; caseless must follow the caseful ones */
1988
1989 OP_STARI, /* 46 */
1990 OP_MINSTARI, /* 47 */
1991 OP_PLUSI, /* 48 */
1992 OP_MINPLUSI, /* 49 */
1993 OP_QUERYI, /* 50 */
1994 OP_MINQUERYI, /* 51 */
1995
1996 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1997 OP_MINUPTOI, /* 53 */
1998 OP_EXACTI, /* 54 */
1999
2000 OP_POSSTARI, /* 55 Possessified star, caseless */
2001 OP_POSPLUSI, /* 56 Possessified plus, caseless */
2002 OP_POSQUERYI, /* 57 Posesssified query, caseless */
2003 OP_POSUPTOI, /* 58 Possessified upto, caseless */
2004
2005 /* The negated ones must follow the non-negated ones, and match them */
2006 /* Negated repeated character, caseful; must precede the caseless ones */
2007
2008 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
2009 OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
2010 OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
2011 OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
2012 OP_NOTQUERY, /* 63 */
2013 OP_NOTMINQUERY, /* 64 */
2014
2015 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
2016 OP_NOTMINUPTO, /* 66 */
2017 OP_NOTEXACT, /* 67 Exactly n matches */
2018
2019 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
2020 OP_NOTPOSPLUS, /* 69 */
2021 OP_NOTPOSQUERY, /* 70 */
2022 OP_NOTPOSUPTO, /* 71 */
2023
2024 /* Negated repeated character, caseless; must follow the caseful ones */
2025
2026 OP_NOTSTARI, /* 72 */
2027 OP_NOTMINSTARI, /* 73 */
2028 OP_NOTPLUSI, /* 74 */
2029 OP_NOTMINPLUSI, /* 75 */
2030 OP_NOTQUERYI, /* 76 */
2031 OP_NOTMINQUERYI, /* 77 */
2032
2033 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
2034 OP_NOTMINUPTOI, /* 79 */
2035 OP_NOTEXACTI, /* 80 Exactly n matches */
2036
2037 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
2038 OP_NOTPOSPLUSI, /* 82 */
2039 OP_NOTPOSQUERYI, /* 83 */
2040 OP_NOTPOSUPTOI, /* 84 */
2041
2042 /* Character types */
2043
2044 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
2045 OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
2046 OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
2047 OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
2048 OP_TYPEQUERY, /* 89 */
2049 OP_TYPEMINQUERY, /* 90 */
2050
2051 OP_TYPEUPTO, /* 91 From 0 to n matches */
2052 OP_TYPEMINUPTO, /* 92 */
2053 OP_TYPEEXACT, /* 93 Exactly n matches */
2054
2055 OP_TYPEPOSSTAR, /* 94 Possessified versions */
2056 OP_TYPEPOSPLUS, /* 95 */
2057 OP_TYPEPOSQUERY, /* 96 */
2058 OP_TYPEPOSUPTO, /* 97 */
2059
2060 /* These are used for character classes and back references; only the
2061 first six are the same as the sets above. */
2062
2063 OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
2064 OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
2065 OP_CRPLUS, /* 100 the minimizing one second. These codes must */
2066 OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
2067 OP_CRQUERY, /* 102 */
2068 OP_CRMINQUERY, /* 103 */
2069
2070 OP_CRRANGE, /* 104 These are different to the three sets above. */
2071 OP_CRMINRANGE, /* 105 */
2072
2073 /* End of quantifier opcodes */
2074
2075 OP_CLASS, /* 106 Match a character class, chars < 256 only */
2076 OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
2077 class - the difference is relevant only when a
2078 character > 255 is encountered. */
2079 OP_XCLASS, /* 108 Extended class for handling > 255 chars within the
2080 class. This does both positive and negative. */
2081 OP_REF, /* 109 Match a back reference, casefully */
2082 OP_REFI, /* 110 Match a back reference, caselessly */
2083 OP_DNREF, /* 111 Match a duplicate name backref, casefully */
2084 OP_DNREFI, /* 112 Match a duplicate name backref, caselessly */
2085 OP_RECURSE, /* 113 Match a numbered subpattern (possibly recursive) */
2086 OP_CALLOUT, /* 114 Call out to external function if provided */
2087
2088 OP_ALT, /* 115 Start of alternation */
2089 OP_KET, /* 116 End of group that doesn't have an unbounded repeat */
2090 OP_KETRMAX, /* 117 These two must remain together and in this */
2091 OP_KETRMIN, /* 118 order. They are for groups the repeat for ever. */
2092 OP_KETRPOS, /* 119 Possessive unlimited repeat. */
2093
2094 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
2095 asserts must remain in order. */
2096
2097 OP_REVERSE, /* 129 Move pointer back - used in lookbehind assertions */
2098 OP_ASSERT, /* 121 Positive lookahead */
2099 OP_ASSERT_NOT, /* 122 Negative lookahead */
2100 OP_ASSERTBACK, /* 123 Positive lookbehind */
2101 OP_ASSERTBACK_NOT, /* 124 Negative lookbehind */
2102
2103 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
2104 after the assertions, with ONCE first, as there's a test for >= ONCE for a
2105 subpattern that isn't an assertion. The POS versions must immediately follow
2106 the non-POS versions in each case. */
2107
2108 OP_ONCE, /* 125 Atomic group, contains captures */
2109 OP_ONCE_NC, /* 126 Atomic group containing no captures */
2110 OP_BRA, /* 127 Start of non-capturing bracket */
2111 OP_BRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
2112 OP_CBRA, /* 129 Start of capturing bracket */
2113 OP_CBRAPOS, /* 130 Ditto, with unlimited, possessive repeat */
2114 OP_COND, /* 131 Conditional group */
2115
2116 /* These five must follow the previous five, in the same order. There's a
2117 check for >= SBRA to distinguish the two sets. */
2118
2119 OP_SBRA, /* 132 Start of non-capturing bracket, check empty */
2120 OP_SBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
2121 OP_SCBRA, /* 134 Start of capturing bracket, check empty */
2122 OP_SCBRAPOS, /* 135 Ditto, with unlimited, possessive repeat */
2123 OP_SCOND, /* 136 Conditional group, check empty */
2124
2125 /* The next two pairs must (respectively) be kept together. */
2126
2127 OP_CREF, /* 137 Used to hold a capture number as condition */
2128 OP_NCREF, /* 138 Same, but generated by a name reference*/
2129 OP_RREF, /* 139 Used to hold a recursion number as condition */
2130 OP_NRREF, /* 140 Same, but generated by a name reference*/
2131 OP_DEF, /* 141 The DEFINE condition */
2132
2133 OP_BRAZERO, /* 142 These two must remain together and in this */
2134 OP_BRAMINZERO, /* 143 order. */
2135 OP_BRAPOSZERO, /* 144 */
2136
2137 /* These are backtracking control verbs */
2138
2139 OP_MARK, /* 145 always has an argument */
2140 OP_PRUNE, /* 146 */
2141 OP_PRUNE_ARG, /* 147 same, but with argument */
2142 OP_SKIP, /* 148 */
2143 OP_SKIP_ARG, /* 149 same, but with argument */
2144 OP_THEN, /* 150 */
2145 OP_THEN_ARG, /* 151 same, but with argument */
2146 OP_COMMIT, /* 152 */
2147
2148 /* These are forced failure and success verbs */
2149
2150 OP_FAIL, /* 153 */
2151 OP_ACCEPT, /* 154 */
2152 OP_ASSERT_ACCEPT, /* 155 Used inside assertions */
2153 OP_CLOSE, /* 156 Used before OP_ACCEPT to close open captures */
2154
2155 /* This is used to skip a subpattern with a {0} quantifier */
2156
2157 OP_SKIPZERO, /* 157 */
2158
2159 /* This is not an opcode, but is used to check that tables indexed by opcode
2160 are the correct length, in order to catch updating errors - there have been
2161 some in the past. */
2162
2163 OP_TABLE_LENGTH
2164 };
2165
2166 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2167 definitions that follow must also be updated to match. There are also tables
2168 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
2169
2170
2171 /* This macro defines textual names for all the opcodes. These are used only
2172 for debugging, and some of them are only partial names. The macro is referenced
2173 only in pcre_printint.c, which fills out the full names in many cases (and in
2174 some cases doesn't actually use these names at all). */
2175
2176 #define OP_NAME_LIST \
2177 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
2178 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
2179 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
2180 "extuni", "\\Z", "\\z", \
2181 "$", "$", "^", "^", "char", "chari", "not", "noti", \
2182 "*", "*?", "+", "+?", "?", "??", \
2183 "{", "{", "{", \
2184 "*+","++", "?+", "{", \
2185 "*", "*?", "+", "+?", "?", "??", \
2186 "{", "{", "{", \
2187 "*+","++", "?+", "{", \
2188 "*", "*?", "+", "+?", "?", "??", \
2189 "{", "{", "{", \
2190 "*+","++", "?+", "{", \
2191 "*", "*?", "+", "+?", "?", "??", \
2192 "{", "{", "{", \
2193 "*+","++", "?+", "{", \
2194 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
2195 "*+","++", "?+", "{", \
2196 "*", "*?", "+", "+?", "?", "??", "{", "{", \
2197 "class", "nclass", "xclass", "Ref", "Refi", "DnRef", "DnRefi", \
2198 "Recurse", "Callout", \
2199 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
2200 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
2201 "Once", "Once_NC", \
2202 "Bra", "BraPos", "CBra", "CBraPos", \
2203 "Cond", \
2204 "SBra", "SBraPos", "SCBra", "SCBraPos", \
2205 "SCond", \
2206 "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
2207 "Brazero", "Braminzero", "Braposzero", \
2208 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
2209 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
2210 "*ACCEPT", "*ASSERT_ACCEPT", \
2211 "Close", "Skip zero"
2212
2213
2214 /* This macro defines the length of fixed length operations in the compiled
2215 regex. The lengths are used when searching for specific things, and also in the
2216 debugging printing of a compiled regex. We use a macro so that it can be
2217 defined close to the definitions of the opcodes themselves.
2218
2219 As things have been extended, some of these are no longer fixed lenths, but are
2220 minima instead. For example, the length of a single-character repeat may vary
2221 in UTF-8 mode. The code that uses this table must know about such things. */
2222
2223 #define OP_LENGTHS \
2224 1, /* End */ \
2225 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
2226 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
2227 1, 1, 1, /* Any, AllAny, Anybyte */ \
2228 3, 3, /* \P, \p */ \
2229 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
2230 1, /* \X */ \
2231 1, 1, 1, 1, 1, 1, /* \Z, \z, $, $M ^, ^M */ \
2232 2, /* Char - the minimum length */ \
2233 2, /* Chari - the minimum length */ \
2234 2, /* not */ \
2235 2, /* noti */ \
2236 /* Positive single-char repeats ** These are */ \
2237 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
2238 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto, minupto ** mode */ \
2239 2+IMM2_SIZE, /* exact */ \
2240 2, 2, 2, 2+IMM2_SIZE, /* *+, ++, ?+, upto+ */ \
2241 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
2242 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto I, minupto I */ \
2243 2+IMM2_SIZE, /* exact I */ \
2244 2, 2, 2, 2+IMM2_SIZE, /* *+I, ++I, ?+I, upto+I */ \
2245 /* Negative single-char repeats - only for chars < 256 */ \
2246 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
2247 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto, minupto */ \
2248 2+IMM2_SIZE, /* NOT exact */ \
2249 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *, +, ?, upto */ \
2250 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
2251 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto I, minupto I */ \
2252 2+IMM2_SIZE, /* NOT exact I */ \
2253 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *I, +I, ?I, upto I */ \
2254 /* Positive type repeats */ \
2255 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
2256 2+IMM2_SIZE, 2+IMM2_SIZE, /* Type upto, minupto */ \
2257 2+IMM2_SIZE, /* Type exact */ \
2258 2, 2, 2, 2+IMM2_SIZE, /* Possessive *+, ++, ?+, upto+ */ \
2259 /* Character class & ref repeats */ \
2260 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
2261 1+2*IMM2_SIZE, 1+2*IMM2_SIZE, /* CRRANGE, CRMINRANGE */ \
2262 1+(32/sizeof(pcre_uchar)), /* CLASS */ \
2263 1+(32/sizeof(pcre_uchar)), /* NCLASS */ \
2264 0, /* XCLASS - variable length */ \
2265 1+IMM2_SIZE, /* REF */ \
2266 1+IMM2_SIZE, /* REFI */ \
2267 1+2*IMM2_SIZE, /* DNREF */ \
2268 1+2*IMM2_SIZE, /* DNREFI */ \
2269 1+LINK_SIZE, /* RECURSE */ \
2270 2+2*LINK_SIZE, /* CALLOUT */ \
2271 1+LINK_SIZE, /* Alt */ \
2272 1+LINK_SIZE, /* Ket */ \
2273 1+LINK_SIZE, /* KetRmax */ \
2274 1+LINK_SIZE, /* KetRmin */ \
2275 1+LINK_SIZE, /* KetRpos */ \
2276 1+LINK_SIZE, /* Reverse */ \
2277 1+LINK_SIZE, /* Assert */ \
2278 1+LINK_SIZE, /* Assert not */ \
2279 1+LINK_SIZE, /* Assert behind */ \
2280 1+LINK_SIZE, /* Assert behind not */ \
2281 1+LINK_SIZE, /* ONCE */ \
2282 1+LINK_SIZE, /* ONCE_NC */ \
2283 1+LINK_SIZE, /* BRA */ \
2284 1+LINK_SIZE, /* BRAPOS */ \
2285 1+LINK_SIZE+IMM2_SIZE, /* CBRA */ \
2286 1+LINK_SIZE+IMM2_SIZE, /* CBRAPOS */ \
2287 1+LINK_SIZE, /* COND */ \
2288 1+LINK_SIZE, /* SBRA */ \
2289 1+LINK_SIZE, /* SBRAPOS */ \
2290 1+LINK_SIZE+IMM2_SIZE, /* SCBRA */ \
2291 1+LINK_SIZE+IMM2_SIZE, /* SCBRAPOS */ \
2292 1+LINK_SIZE, /* SCOND */ \
2293 1+IMM2_SIZE, 1+IMM2_SIZE, /* CREF, NCREF */ \
2294 1+IMM2_SIZE, 1+IMM2_SIZE, /* RREF, NRREF */ \
2295 1, /* DEF */ \
2296 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
2297 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
2298 1, 3, /* SKIP, SKIP_ARG */ \
2299 1, 3, /* THEN, THEN_ARG */ \
2300 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
2301 1+IMM2_SIZE, 1 /* CLOSE, SKIPZERO */
2302
2303 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2304 condition. */
2305
2306 #define RREF_ANY 0xffff
2307
2308 /* Compile time error code numbers. They are given names so that they can more
2309 easily be tracked. When a new number is added, the table called eint in
2310 pcreposix.c must be updated. */
2311
2312 enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
2313 ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2314 ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2315 ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2316 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2317 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2318 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2319 ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERR78, ERRCOUNT };
2320
2321 /* JIT compiling modes. The function list is indexed by them. */
2322 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2323 JIT_NUMBER_OF_COMPILE_MODES };
2324
2325 /* The real format of the start of the pcre block; the index of names and the
2326 code vector run on as long as necessary after the end. We store an explicit
2327 offset to the name table so that if a regex is compiled on one host, saved, and
2328 then run on another where the size of pointers is different, all might still
2329 be well.
2330
2331 The size of the structure must be a multiple of 8 bytes. For the case of
2332 compiled-on-4 and run-on-8, we include an extra pointer that is always NULL so
2333 that there are an even number of pointers which therefore are a multiple of 8
2334 bytes.
2335
2336 It is necessary to fork the struct for the 32 bit library, since it needs to
2337 use pcre_uint32 for first_char and req_char. We can't put an ifdef inside the
2338 typedef because pcretest needs access to the struct of the 8-, 16- and 32-bit
2339 variants.
2340
2341 *** WARNING ***
2342 When new fields are added to these structures, remember to adjust the code in
2343 pcre_byte_order.c that is concerned with swapping the byte order of the fields
2344 when a compiled regex is reloaded on a host with different endianness.
2345 *** WARNING ***
2346 There is also similar byte-flipping code in pcretest.c, which is used for
2347 testing the byte-flipping features. It must also be kept in step.
2348 *** WARNING ***
2349 */
2350
2351 typedef struct real_pcre8_or_16 {
2352 pcre_uint32 magic_number;
2353 pcre_uint32 size; /* Total that was malloced */
2354 pcre_uint32 options; /* Public options */
2355 pcre_uint32 flags; /* Private flags */
2356 pcre_uint32 limit_match; /* Limit set from regex */
2357 pcre_uint32 limit_recursion; /* Limit set from regex */
2358 pcre_uint16 first_char; /* Starting character */
2359 pcre_uint16 req_char; /* This character must be seen */
2360 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2361 pcre_uint16 top_bracket; /* Highest numbered group */
2362 pcre_uint16 top_backref; /* Highest numbered back reference */
2363 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2364 pcre_uint16 name_entry_size; /* Size of any name items */
2365 pcre_uint16 name_count; /* Number of name items */
2366 pcre_uint16 ref_count; /* Reference count */
2367 pcre_uint16 dummy1; /* To ensure size is a multiple of 8 */
2368 pcre_uint16 dummy2; /* To ensure size is a multiple of 8 */
2369 pcre_uint16 dummy3; /* To ensure size is a multiple of 8 */
2370 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2371 void *nullpad; /* NULL padding */
2372 } real_pcre8_or_16;
2373
2374 typedef struct real_pcre8_or_16 real_pcre;
2375 typedef struct real_pcre8_or_16 real_pcre16;
2376
2377 typedef struct real_pcre32 {
2378 pcre_uint32 magic_number;
2379 pcre_uint32 size; /* Total that was malloced */
2380 pcre_uint32 options; /* Public options */
2381 pcre_uint32 flags; /* Private flags */
2382 pcre_uint32 limit_match; /* Limit set from regex */
2383 pcre_uint32 limit_recursion; /* Limit set from regex */
2384 pcre_uint32 first_char; /* Starting character */
2385 pcre_uint32 req_char; /* This character must be seen */
2386 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2387 pcre_uint16 top_bracket; /* Highest numbered group */
2388 pcre_uint16 top_backref; /* Highest numbered back reference */
2389 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2390 pcre_uint16 name_entry_size; /* Size of any name items */
2391 pcre_uint16 name_count; /* Number of name items */
2392 pcre_uint16 ref_count; /* Reference count */
2393 pcre_uint16 dummy; /* To ensure size is a multiple of 8 */
2394 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2395 void *nullpad; /* NULL padding */
2396 } real_pcre32;
2397
2398 #if defined COMPILE_PCRE8
2399 #define REAL_PCRE real_pcre
2400 #elif defined COMPILE_PCRE16
2401 #define REAL_PCRE real_pcre16
2402 #elif defined COMPILE_PCRE32
2403 #define REAL_PCRE real_pcre32
2404 #endif
2405
2406 /* Assert that the size of REAL_PCRE is divisible by 8 */
2407 typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2408
2409 /* Needed in pcretest to access some fields in the real_pcre* structures
2410 * directly. They're unified for 8/16/32 bits since the structs only differ
2411 * after these fields; if that ever changes, need to fork those defines into
2412 * 8/16 and 32 bit versions. */
2413 #define REAL_PCRE_MAGIC(re) (((REAL_PCRE*)re)->magic_number)
2414 #define REAL_PCRE_SIZE(re) (((REAL_PCRE*)re)->size)
2415 #define REAL_PCRE_OPTIONS(re) (((REAL_PCRE*)re)->options)
2416 #define REAL_PCRE_FLAGS(re) (((REAL_PCRE*)re)->flags)
2417
2418 /* The format of the block used to store data from pcre_study(). The same
2419 remark (see NOTE above) about extending this structure applies. */
2420
2421 typedef struct pcre_study_data {
2422 pcre_uint32 size; /* Total that was malloced */
2423 pcre_uint32 flags; /* Private flags */
2424 pcre_uint8 start_bits[32]; /* Starting char bits */
2425 pcre_uint32 minlength; /* Minimum subject length */
2426 } pcre_study_data;
2427
2428 /* Structure for building a chain of open capturing subpatterns during
2429 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2430 encountered. This is also used to identify subpatterns that contain recursive
2431 back references to themselves, so that they can be made atomic. */
2432
2433 typedef struct open_capitem {
2434 struct open_capitem *next; /* Chain link */
2435 pcre_uint16 number; /* Capture number */
2436 pcre_uint16 flag; /* Set TRUE if recursive back ref */
2437 } open_capitem;
2438
2439 /* Structure for building a list of named groups during the first pass of
2440 compiling. */
2441
2442 typedef struct named_group {
2443 const pcre_uchar *name; /* Points to the name in the pattern */
2444 int length; /* Length of the name */
2445 pcre_uint32 number; /* Group number */
2446 } named_group;
2447
2448 /* Structure for passing "static" information around between the functions
2449 doing the compiling, so that they are thread-safe. */
2450
2451 typedef struct compile_data {
2452 const pcre_uint8 *lcc; /* Points to lower casing table */
2453 const pcre_uint8 *fcc; /* Points to case-flipping table */
2454 const pcre_uint8 *cbits; /* Points to character type table */
2455 const pcre_uint8 *ctypes; /* Points to table of type maps */
2456 const pcre_uchar *start_workspace;/* The start of working space */
2457 const pcre_uchar *start_code; /* The start of the compiled code */
2458 const pcre_uchar *start_pattern; /* The start of the pattern */
2459 const pcre_uchar *end_pattern; /* The end of the pattern */
2460 pcre_uchar *hwm; /* High watermark of workspace */
2461 open_capitem *open_caps; /* Chain of open capture items */
2462 named_group *named_groups; /* Points to vector in pre-compile */
2463 pcre_uchar *name_table; /* The name/number table */
2464 int names_found; /* Number of entries so far */
2465 int name_entry_size; /* Size of each entry */
2466 int named_group_list_size; /* Number of entries in the list */
2467 int workspace_size; /* Size of workspace */
2468 unsigned int bracount; /* Count of capturing parens as we compile */
2469 int final_bracount; /* Saved value after first pass */
2470 int max_lookbehind; /* Maximum lookbehind (characters) */
2471 int top_backref; /* Maximum back reference */
2472 unsigned int backref_map; /* Bitmap of low back refs */
2473 unsigned int namedrefcount; /* Number of backreferences by name */
2474 int assert_depth; /* Depth of nested assertions */
2475 pcre_uint32 external_options; /* External (initial) options */
2476 pcre_uint32 external_flags; /* External flag bits to be set */
2477 int req_varyopt; /* "After variable item" flag for reqbyte */
2478 BOOL had_accept; /* (*ACCEPT) encountered */
2479 BOOL had_pruneorskip; /* (*PRUNE) or (*SKIP) encountered */
2480 BOOL check_lookbehind; /* Lookbehinds need later checking */
2481 BOOL dupnames; /* Duplicate names exist */
2482 int nltype; /* Newline type */
2483 int nllen; /* Newline string length */
2484 pcre_uchar nl[4]; /* Newline string when fixed length */
2485 } compile_data;
2486
2487 /* Structure for maintaining a chain of pointers to the currently incomplete
2488 branches, for testing for left recursion while compiling. */
2489
2490 typedef struct branch_chain {
2491 struct branch_chain *outer;
2492 pcre_uchar *current_branch;
2493 } branch_chain;
2494
2495 /* Structure for items in a linked list that represents an explicit recursive
2496 call within the pattern; used by pcre_exec(). */
2497
2498 typedef struct recursion_info {
2499 struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2500 unsigned int group_num; /* Number of group that was called */
2501 int *offset_save; /* Pointer to start of saved offsets */
2502 int saved_max; /* Number of saved offsets */
2503 int saved_capture_last; /* Last capture number */
2504 PCRE_PUCHAR subject_position; /* Position at start of recursion */
2505 } recursion_info;
2506
2507 /* A similar structure for pcre_dfa_exec(). */
2508
2509 typedef struct dfa_recursion_info {
2510 struct dfa_recursion_info *prevrec;
2511 int group_num;
2512 PCRE_PUCHAR subject_position;
2513 } dfa_recursion_info;
2514
2515 /* Structure for building a chain of data for holding the values of the subject
2516 pointer at the start of each subpattern, so as to detect when an empty string
2517 has been matched by a subpattern - to break infinite loops; used by
2518 pcre_exec(). */
2519
2520 typedef struct eptrblock {
2521 struct eptrblock *epb_prev;
2522 PCRE_PUCHAR epb_saved_eptr;
2523 } eptrblock;
2524
2525
2526 /* Structure for passing "static" information around between the functions
2527 doing traditional NFA matching, so that they are thread-safe. */
2528
2529 typedef struct match_data {
2530 unsigned long int match_call_count; /* As it says */
2531 unsigned long int match_limit; /* As it says */
2532 unsigned long int match_limit_recursion; /* As it says */
2533 int *offset_vector; /* Offset vector */
2534 int offset_end; /* One past the end */
2535 int offset_max; /* The maximum usable for return data */
2536 int nltype; /* Newline type */
2537 int nllen; /* Newline string length */
2538 int name_count; /* Number of names in name table */
2539 int name_entry_size; /* Size of entry in names table */
2540 unsigned int skip_arg_count; /* For counting SKIP_ARGs */
2541 unsigned int ignore_skip_arg; /* For re-run when SKIP arg name not found */
2542 pcre_uchar *name_table; /* Table of names */
2543 pcre_uchar nl[4]; /* Newline string when fixed */
2544 const pcre_uint8 *lcc; /* Points to lower casing table */
2545 const pcre_uint8 *fcc; /* Points to case-flipping table */
2546 const pcre_uint8 *ctypes; /* Points to table of type maps */
2547 BOOL notbol; /* NOTBOL flag */
2548 BOOL noteol; /* NOTEOL flag */
2549 BOOL utf; /* UTF-8 / UTF-16 flag */
2550 BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
2551 BOOL use_ucp; /* PCRE_UCP flag */
2552 BOOL endonly; /* Dollar not before final \n */
2553 BOOL notempty; /* Empty string match not wanted */
2554 BOOL notempty_atstart; /* Empty string match at start not wanted */
2555 BOOL hitend; /* Hit the end of the subject at some point */
2556 BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
2557 BOOL hasthen; /* Pattern contains (*THEN) */
2558 const pcre_uchar *start_code; /* For use when recursing */
2559 PCRE_PUCHAR start_subject; /* Start of the subject string */
2560 PCRE_PUCHAR end_subject; /* End of the subject string */
2561 PCRE_PUCHAR start_match_ptr; /* Start of matched string */
2562 PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
2563 PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
2564 int partial; /* PARTIAL options */
2565 int end_offset_top; /* Highwater mark at end of match */
2566 pcre_int32 capture_last; /* Most recent capture number + overflow flag */
2567 int start_offset; /* The start offset value */
2568 int match_function_type; /* Set for certain special calls of MATCH() */
2569 eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
2570 int eptrn; /* Next free eptrblock */
2571 recursion_info *recursive; /* Linked list of recursion data */
2572 void *callout_data; /* To pass back to callouts */
2573 const pcre_uchar *mark; /* Mark pointer to pass back on success */
2574 const pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2575 const pcre_uchar *once_target; /* Where to back up to for atomic groups */
2576 #ifdef NO_RECURSE
2577 void *match_frames_base; /* For remembering malloc'd frames */
2578 #endif
2579 } match_data;
2580
2581 /* A similar structure is used for the same purpose by the DFA matching
2582 functions. */
2583
2584 typedef struct dfa_match_data {
2585 const pcre_uchar *start_code; /* Start of the compiled pattern */
2586 const pcre_uchar *start_subject ; /* Start of the subject string */
2587 const pcre_uchar *end_subject; /* End of subject string */
2588 const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2589 const pcre_uint8 *tables; /* Character tables */
2590 int start_offset; /* The start offset value */
2591 int moptions; /* Match options */
2592 int poptions; /* Pattern options */
2593 int nltype; /* Newline type */
2594 int nllen; /* Newline string length */
2595 pcre_uchar nl[4]; /* Newline string when fixed */
2596 void *callout_data; /* To pass back to callouts */
2597 dfa_recursion_info *recursive; /* Linked list of recursion data */
2598 } dfa_match_data;
2599
2600 /* Bit definitions for entries in the pcre_ctypes table. */
2601
2602 #define ctype_space 0x01
2603 #define ctype_letter 0x02
2604 #define ctype_digit 0x04
2605 #define ctype_xdigit 0x08
2606 #define ctype_word 0x10 /* alphanumeric or '_' */
2607 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
2608
2609 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2610 of bits for a class map. Some classes are built by combining these tables. */
2611
2612 #define cbit_space 0 /* [:space:] or \s */
2613 #define cbit_xdigit 32 /* [:xdigit:] */
2614 #define cbit_digit 64 /* [:digit:] or \d */
2615 #define cbit_upper 96 /* [:upper:] */
2616 #define cbit_lower 128 /* [:lower:] */
2617 #define cbit_word 160 /* [:word:] or \w */
2618 #define cbit_graph 192 /* [:graph:] */
2619 #define cbit_print 224 /* [:print:] */
2620 #define cbit_punct 256 /* [:punct:] */
2621 #define cbit_cntrl 288 /* [:cntrl:] */
2622 #define cbit_length 320 /* Length of the cbits table */
2623
2624 /* Offsets of the various tables from the base tables pointer, and
2625 total length. */
2626
2627 #define lcc_offset 0
2628 #define fcc_offset 256
2629 #define cbits_offset 512
2630 #define ctypes_offset (cbits_offset + cbit_length)
2631 #define tables_length (ctypes_offset + 256)
2632
2633 /* Internal function and data prefixes. */
2634
2635 #if defined COMPILE_PCRE8
2636 #ifndef PUBL
2637 #define PUBL(name) pcre_##name
2638 #endif
2639 #ifndef PRIV
2640 #define PRIV(name) _pcre_##name
2641 #endif
2642 #elif defined COMPILE_PCRE16
2643 #ifndef PUBL
2644 #define PUBL(name) pcre16_##name
2645 #endif
2646 #ifndef PRIV
2647 #define PRIV(name) _pcre16_##name
2648 #endif
2649 #elif defined COMPILE_PCRE32
2650 #ifndef PUBL
2651 #define PUBL(name) pcre32_##name
2652 #endif
2653 #ifndef PRIV
2654 #define PRIV(name) _pcre32_##name
2655 #endif
2656 #else
2657 #error Unsupported compiling mode
2658 #endif /* COMPILE_PCRE[8|16|32] */
2659
2660 /* Layout of the UCP type table that translates property names into types and
2661 codes. Each entry used to point directly to a name, but to reduce the number of
2662 relocations in shared libraries, it now has an offset into a single string
2663 instead. */
2664
2665 typedef struct {
2666 pcre_uint16 name_offset;
2667 pcre_uint16 type;
2668 pcre_uint16 value;
2669 } ucp_type_table;
2670
2671
2672 /* Internal shared data tables. These are tables that are used by more than one
2673 of the exported public functions. They have to be "external" in the C sense,
2674 but are not part of the PCRE public API. The data for these tables is in the
2675 pcre_tables.c module. */
2676
2677 #ifdef COMPILE_PCRE8
2678 extern const int PRIV(utf8_table1)[];
2679 extern const int PRIV(utf8_table1_size);
2680 extern const int PRIV(utf8_table2)[];
2681 extern const int PRIV(utf8_table3)[];
2682 extern const pcre_uint8 PRIV(utf8_table4)[];
2683 #endif /* COMPILE_PCRE8 */
2684
2685 extern const char PRIV(utt_names)[];
2686 extern const ucp_type_table PRIV(utt)[];
2687 extern const int PRIV(utt_size);
2688
2689 extern const pcre_uint8 PRIV(OP_lengths)[];
2690 extern const pcre_uint8 PRIV(default_tables)[];
2691
2692 extern const pcre_uint32 PRIV(hspace_list)[];
2693 extern const pcre_uint32 PRIV(vspace_list)[];
2694
2695
2696 /* Internal shared functions. These are functions that are used by more than
2697 one of the exported public functions. They have to be "external" in the C
2698 sense, but are not part of the PCRE public API. */
2699
2700 /* String comparison functions. */
2701 #if defined COMPILE_PCRE8
2702
2703 #define STRCMP_UC_UC(str1, str2) \
2704 strcmp((char *)(str1), (char *)(str2))
2705 #define STRCMP_UC_C8(str1, str2) \
2706 strcmp((char *)(str1), (str2))
2707 #define STRNCMP_UC_UC(str1, str2, num) \
2708 strncmp((char *)(str1), (char *)(str2), (num))
2709 #define STRNCMP_UC_C8(str1, str2, num) \
2710 strncmp((char *)(str1), (str2), (num))
2711 #define STRLEN_UC(str) strlen((const char *)str)
2712
2713 #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2714
2715 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2716 const pcre_uchar *);
2717 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2718 const char *);
2719 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2720 const pcre_uchar *, unsigned int num);
2721 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2722 const char *, unsigned int num);
2723 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2724
2725 #define STRCMP_UC_UC(str1, str2) \
2726 PRIV(strcmp_uc_uc)((str1), (str2))
2727 #define STRCMP_UC_C8(str1, str2) \
2728 PRIV(strcmp_uc_c8)((str1), (str2))
2729 #define STRNCMP_UC_UC(str1, str2, num) \
2730 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2731 #define STRNCMP_UC_C8(str1, str2, num) \
2732 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2733 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2734
2735 #endif /* COMPILE_PCRE[8|16|32] */
2736
2737 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
2738
2739 #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
2740 #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
2741
2742 #elif defined COMPILE_PCRE32
2743
2744 extern int PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
2745 const pcre_uchar *);
2746 extern int PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
2747 const char *);
2748
2749 #define STRCMP_UC_UC_TEST(str1, str2) \
2750 (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
2751 #define STRCMP_UC_C8_TEST(str1, str2) \
2752 (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
2753
2754 #endif /* COMPILE_PCRE[8|16|32] */
2755
2756 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2757 extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2758 int *, BOOL);
2759 extern unsigned int PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2760 extern int PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2761 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2762 int *, BOOL);
2763 extern BOOL PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
2764
2765 #ifdef SUPPORT_JIT
2766 extern void PRIV(jit_compile)(const REAL_PCRE *,
2767 PUBL(extra) *, int);
2768 extern int PRIV(jit_exec)(const PUBL(extra) *,
2769 const pcre_uchar *, int, int, int, int *, int);
2770 extern void PRIV(jit_free)(void *);
2771 extern int PRIV(jit_get_size)(void *);
2772 extern const char* PRIV(jit_get_target)(void);
2773 #endif
2774
2775 /* Unicode character database (UCD) */
2776
2777 typedef struct {
2778 pcre_uint8 script; /* ucp_Arabic, etc. */
2779 pcre_uint8 chartype; /* ucp_Cc, etc. (general categories) */
2780 pcre_uint8 gbprop; /* ucp_gbControl, etc. (grapheme break property) */
2781 pcre_uint8 caseset; /* offset to multichar other cases or zero */
2782 pcre_int32 other_case; /* offset to other case, or zero if none */
2783 } ucd_record;
2784
2785 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2786 extern const ucd_record PRIV(ucd_records)[];
2787 extern const pcre_uint8 PRIV(ucd_stage1)[];
2788 extern const pcre_uint16 PRIV(ucd_stage2)[];
2789 extern const pcre_uint32 PRIV(ucp_gentype)[];
2790 extern const pcre_uint32 PRIV(ucp_gbtable)[];
2791 #ifdef SUPPORT_JIT
2792 extern const int PRIV(ucp_typerange)[];
2793 #endif
2794
2795 #ifdef SUPPORT_UCP
2796 /* UCD access macros */
2797
2798 #define UCD_BLOCK_SIZE 128
2799 #define GET_UCD(ch) (PRIV(ucd_records) + \
2800 PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
2801 UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
2802
2803 #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2804 #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2805 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2806 #define UCD_GRAPHBREAK(ch) GET_UCD(ch)->gbprop
2807 #define UCD_CASESET(ch) GET_UCD(ch)->caseset
2808 #define UCD_OTHERCASE(ch) ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
2809
2810 #endif /* SUPPORT_UCP */
2811
2812 #endif
2813
2814 /* End of pcre_internal.h */

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