/[pcre]/code/trunk/pcre_internal.h
ViewVC logotype

Contents of /code/trunk/pcre_internal.h

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1361 - (show annotations)
Fri Sep 6 17:47:32 2013 UTC (6 years, 1 month ago) by ph10
File MIME type: text/plain
File size: 111814 byte(s)
Error occurred while calculating annotation data.
Make back references to duplicated named subpatterns more like Perl.
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_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1178 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1179 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE|PCRE_NEVER_UTF)
1180
1181 #define PUBLIC_EXEC_OPTIONS \
1182 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1183 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
1184 PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
1185
1186 #define PUBLIC_DFA_EXEC_OPTIONS \
1187 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1188 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
1189 PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1190 PCRE_NO_START_OPTIMIZE)
1191
1192 #define PUBLIC_STUDY_OPTIONS \
1193 (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
1194 PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1195
1196 #define PUBLIC_JIT_EXEC_OPTIONS \
1197 (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
1198 PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
1199
1200 /* Magic number to provide a small check against being handed junk. */
1201
1202 #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
1203
1204 /* This variable is used to detect a loaded regular expression
1205 in different endianness. */
1206
1207 #define REVERSED_MAGIC_NUMBER 0x45524350UL /* 'ERCP' */
1208
1209 /* The maximum remaining length of subject we are prepared to search for a
1210 req_byte match. */
1211
1212 #define REQ_BYTE_MAX 1000
1213
1214 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1215 environments where these macros are defined elsewhere. Unfortunately, there
1216 is no way to do the same for the typedef. */
1217
1218 typedef int BOOL;
1219
1220 #ifndef FALSE
1221 #define FALSE 0
1222 #define TRUE 1
1223 #endif
1224
1225 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1226 character constants like '*' because the compiler would emit their EBCDIC code,
1227 which is different from their ASCII/UTF-8 code. Instead we define macros for
1228 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1229 is enabled. When UTF-8 support is not enabled, the definitions use character
1230 literals. Both character and string versions of each character are needed, and
1231 there are some longer strings as well.
1232
1233 This means that, on EBCDIC platforms, the PCRE library can handle either
1234 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1235 would need different lookups depending on whether PCRE_UTF8 was set or not.
1236 This would make it impossible to use characters in switch/case statements,
1237 which would reduce performance. For a theoretical use (which nobody has asked
1238 for) in a minority area (EBCDIC platforms), this is not sensible. Any
1239 application that did need both could compile two versions of the library, using
1240 macros to give the functions distinct names. */
1241
1242 #ifndef SUPPORT_UTF
1243
1244 /* UTF-8 support is not enabled; use the platform-dependent character literals
1245 so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1246 mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1247 characters, a common practice has been to use its NL (0x15) character as the
1248 line terminator in C-like processing environments. However, sometimes the LF
1249 (0x25) character is used instead, according to this Unicode document:
1250
1251 http://unicode.org/standard/reports/tr13/tr13-5.html
1252
1253 PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1254 instead. Whichever is *not* chosen is defined as NEL.
1255
1256 In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1257 same code point. */
1258
1259 #ifdef EBCDIC
1260
1261 #ifndef EBCDIC_NL25
1262 #define CHAR_NL '\x15'
1263 #define CHAR_NEL '\x25'
1264 #define STR_NL "\x15"
1265 #define STR_NEL "\x25"
1266 #else
1267 #define CHAR_NL '\x25'
1268 #define CHAR_NEL '\x15'
1269 #define STR_NL "\x25"
1270 #define STR_NEL "\x15"
1271 #endif
1272
1273 #define CHAR_LF CHAR_NL
1274 #define STR_LF STR_NL
1275
1276 #define CHAR_ESC '\047'
1277 #define CHAR_DEL '\007'
1278 #define STR_ESC "\047"
1279 #define STR_DEL "\007"
1280
1281 #else /* Not EBCDIC */
1282
1283 /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1284 compatibility. NEL is the Unicode newline character; make sure it is
1285 a positive value. */
1286
1287 #define CHAR_LF '\n'
1288 #define CHAR_NL CHAR_LF
1289 #define CHAR_NEL ((unsigned char)'\x85')
1290 #define CHAR_ESC '\033'
1291 #define CHAR_DEL '\177'
1292
1293 #define STR_LF "\n"
1294 #define STR_NL STR_LF
1295 #define STR_NEL "\x85"
1296 #define STR_ESC "\033"
1297 #define STR_DEL "\177"
1298
1299 #endif /* EBCDIC */
1300
1301 /* The remaining definitions work in both environments. */
1302
1303 #define CHAR_NULL '\0'
1304 #define CHAR_HT '\t'
1305 #define CHAR_VT '\v'
1306 #define CHAR_FF '\f'
1307 #define CHAR_CR '\r'
1308 #define CHAR_BS '\b'
1309 #define CHAR_BEL '\a'
1310
1311 #define CHAR_SPACE ' '
1312 #define CHAR_EXCLAMATION_MARK '!'
1313 #define CHAR_QUOTATION_MARK '"'
1314 #define CHAR_NUMBER_SIGN '#'
1315 #define CHAR_DOLLAR_SIGN '$'
1316 #define CHAR_PERCENT_SIGN '%'
1317 #define CHAR_AMPERSAND '&'
1318 #define CHAR_APOSTROPHE '\''
1319 #define CHAR_LEFT_PARENTHESIS '('
1320 #define CHAR_RIGHT_PARENTHESIS ')'
1321 #define CHAR_ASTERISK '*'
1322 #define CHAR_PLUS '+'
1323 #define CHAR_COMMA ','
1324 #define CHAR_MINUS '-'
1325 #define CHAR_DOT '.'
1326 #define CHAR_SLASH '/'
1327 #define CHAR_0 '0'
1328 #define CHAR_1 '1'
1329 #define CHAR_2 '2'
1330 #define CHAR_3 '3'
1331 #define CHAR_4 '4'
1332 #define CHAR_5 '5'
1333 #define CHAR_6 '6'
1334 #define CHAR_7 '7'
1335 #define CHAR_8 '8'
1336 #define CHAR_9 '9'
1337 #define CHAR_COLON ':'
1338 #define CHAR_SEMICOLON ';'
1339 #define CHAR_LESS_THAN_SIGN '<'
1340 #define CHAR_EQUALS_SIGN '='
1341 #define CHAR_GREATER_THAN_SIGN '>'
1342 #define CHAR_QUESTION_MARK '?'
1343 #define CHAR_COMMERCIAL_AT '@'
1344 #define CHAR_A 'A'
1345 #define CHAR_B 'B'
1346 #define CHAR_C 'C'
1347 #define CHAR_D 'D'
1348 #define CHAR_E 'E'
1349 #define CHAR_F 'F'
1350 #define CHAR_G 'G'
1351 #define CHAR_H 'H'
1352 #define CHAR_I 'I'
1353 #define CHAR_J 'J'
1354 #define CHAR_K 'K'
1355 #define CHAR_L 'L'
1356 #define CHAR_M 'M'
1357 #define CHAR_N 'N'
1358 #define CHAR_O 'O'
1359 #define CHAR_P 'P'
1360 #define CHAR_Q 'Q'
1361 #define CHAR_R 'R'
1362 #define CHAR_S 'S'
1363 #define CHAR_T 'T'
1364 #define CHAR_U 'U'
1365 #define CHAR_V 'V'
1366 #define CHAR_W 'W'
1367 #define CHAR_X 'X'
1368 #define CHAR_Y 'Y'
1369 #define CHAR_Z 'Z'
1370 #define CHAR_LEFT_SQUARE_BRACKET '['
1371 #define CHAR_BACKSLASH '\\'
1372 #define CHAR_RIGHT_SQUARE_BRACKET ']'
1373 #define CHAR_CIRCUMFLEX_ACCENT '^'
1374 #define CHAR_UNDERSCORE '_'
1375 #define CHAR_GRAVE_ACCENT '`'
1376 #define CHAR_a 'a'
1377 #define CHAR_b 'b'
1378 #define CHAR_c 'c'
1379 #define CHAR_d 'd'
1380 #define CHAR_e 'e'
1381 #define CHAR_f 'f'
1382 #define CHAR_g 'g'
1383 #define CHAR_h 'h'
1384 #define CHAR_i 'i'
1385 #define CHAR_j 'j'
1386 #define CHAR_k 'k'
1387 #define CHAR_l 'l'
1388 #define CHAR_m 'm'
1389 #define CHAR_n 'n'
1390 #define CHAR_o 'o'
1391 #define CHAR_p 'p'
1392 #define CHAR_q 'q'
1393 #define CHAR_r 'r'
1394 #define CHAR_s 's'
1395 #define CHAR_t 't'
1396 #define CHAR_u 'u'
1397 #define CHAR_v 'v'
1398 #define CHAR_w 'w'
1399 #define CHAR_x 'x'
1400 #define CHAR_y 'y'
1401 #define CHAR_z 'z'
1402 #define CHAR_LEFT_CURLY_BRACKET '{'
1403 #define CHAR_VERTICAL_LINE '|'
1404 #define CHAR_RIGHT_CURLY_BRACKET '}'
1405 #define CHAR_TILDE '~'
1406
1407 #define STR_HT "\t"
1408 #define STR_VT "\v"
1409 #define STR_FF "\f"
1410 #define STR_CR "\r"
1411 #define STR_BS "\b"
1412 #define STR_BEL "\a"
1413
1414 #define STR_SPACE " "
1415 #define STR_EXCLAMATION_MARK "!"
1416 #define STR_QUOTATION_MARK "\""
1417 #define STR_NUMBER_SIGN "#"
1418 #define STR_DOLLAR_SIGN "$"
1419 #define STR_PERCENT_SIGN "%"
1420 #define STR_AMPERSAND "&"
1421 #define STR_APOSTROPHE "'"
1422 #define STR_LEFT_PARENTHESIS "("
1423 #define STR_RIGHT_PARENTHESIS ")"
1424 #define STR_ASTERISK "*"
1425 #define STR_PLUS "+"
1426 #define STR_COMMA ","
1427 #define STR_MINUS "-"
1428 #define STR_DOT "."
1429 #define STR_SLASH "/"
1430 #define STR_0 "0"
1431 #define STR_1 "1"
1432 #define STR_2 "2"
1433 #define STR_3 "3"
1434 #define STR_4 "4"
1435 #define STR_5 "5"
1436 #define STR_6 "6"
1437 #define STR_7 "7"
1438 #define STR_8 "8"
1439 #define STR_9 "9"
1440 #define STR_COLON ":"
1441 #define STR_SEMICOLON ";"
1442 #define STR_LESS_THAN_SIGN "<"
1443 #define STR_EQUALS_SIGN "="
1444 #define STR_GREATER_THAN_SIGN ">"
1445 #define STR_QUESTION_MARK "?"
1446 #define STR_COMMERCIAL_AT "@"
1447 #define STR_A "A"
1448 #define STR_B "B"
1449 #define STR_C "C"
1450 #define STR_D "D"
1451 #define STR_E "E"
1452 #define STR_F "F"
1453 #define STR_G "G"
1454 #define STR_H "H"
1455 #define STR_I "I"
1456 #define STR_J "J"
1457 #define STR_K "K"
1458 #define STR_L "L"
1459 #define STR_M "M"
1460 #define STR_N "N"
1461 #define STR_O "O"
1462 #define STR_P "P"
1463 #define STR_Q "Q"
1464 #define STR_R "R"
1465 #define STR_S "S"
1466 #define STR_T "T"
1467 #define STR_U "U"
1468 #define STR_V "V"
1469 #define STR_W "W"
1470 #define STR_X "X"
1471 #define STR_Y "Y"
1472 #define STR_Z "Z"
1473 #define STR_LEFT_SQUARE_BRACKET "["
1474 #define STR_BACKSLASH "\\"
1475 #define STR_RIGHT_SQUARE_BRACKET "]"
1476 #define STR_CIRCUMFLEX_ACCENT "^"
1477 #define STR_UNDERSCORE "_"
1478 #define STR_GRAVE_ACCENT "`"
1479 #define STR_a "a"
1480 #define STR_b "b"
1481 #define STR_c "c"
1482 #define STR_d "d"
1483 #define STR_e "e"
1484 #define STR_f "f"
1485 #define STR_g "g"
1486 #define STR_h "h"
1487 #define STR_i "i"
1488 #define STR_j "j"
1489 #define STR_k "k"
1490 #define STR_l "l"
1491 #define STR_m "m"
1492 #define STR_n "n"
1493 #define STR_o "o"
1494 #define STR_p "p"
1495 #define STR_q "q"
1496 #define STR_r "r"
1497 #define STR_s "s"
1498 #define STR_t "t"
1499 #define STR_u "u"
1500 #define STR_v "v"
1501 #define STR_w "w"
1502 #define STR_x "x"
1503 #define STR_y "y"
1504 #define STR_z "z"
1505 #define STR_LEFT_CURLY_BRACKET "{"
1506 #define STR_VERTICAL_LINE "|"
1507 #define STR_RIGHT_CURLY_BRACKET "}"
1508 #define STR_TILDE "~"
1509
1510 #define STRING_ACCEPT0 "ACCEPT\0"
1511 #define STRING_COMMIT0 "COMMIT\0"
1512 #define STRING_F0 "F\0"
1513 #define STRING_FAIL0 "FAIL\0"
1514 #define STRING_MARK0 "MARK\0"
1515 #define STRING_PRUNE0 "PRUNE\0"
1516 #define STRING_SKIP0 "SKIP\0"
1517 #define STRING_THEN "THEN"
1518
1519 #define STRING_alpha0 "alpha\0"
1520 #define STRING_lower0 "lower\0"
1521 #define STRING_upper0 "upper\0"
1522 #define STRING_alnum0 "alnum\0"
1523 #define STRING_ascii0 "ascii\0"
1524 #define STRING_blank0 "blank\0"
1525 #define STRING_cntrl0 "cntrl\0"
1526 #define STRING_digit0 "digit\0"
1527 #define STRING_graph0 "graph\0"
1528 #define STRING_print0 "print\0"
1529 #define STRING_punct0 "punct\0"
1530 #define STRING_space0 "space\0"
1531 #define STRING_word0 "word\0"
1532 #define STRING_xdigit "xdigit"
1533
1534 #define STRING_DEFINE "DEFINE"
1535
1536 #define STRING_CR_RIGHTPAR "CR)"
1537 #define STRING_LF_RIGHTPAR "LF)"
1538 #define STRING_CRLF_RIGHTPAR "CRLF)"
1539 #define STRING_ANY_RIGHTPAR "ANY)"
1540 #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1541 #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1542 #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1543 #define STRING_UTF8_RIGHTPAR "UTF8)"
1544 #define STRING_UTF16_RIGHTPAR "UTF16)"
1545 #define STRING_UTF32_RIGHTPAR "UTF32)"
1546 #define STRING_UTF_RIGHTPAR "UTF)"
1547 #define STRING_UCP_RIGHTPAR "UCP)"
1548 #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1549 #define STRING_LIMIT_MATCH_EQ "LIMIT_MATCH="
1550 #define STRING_LIMIT_RECURSION_EQ "LIMIT_RECURSION="
1551
1552 #else /* SUPPORT_UTF */
1553
1554 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1555 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1556 only. */
1557
1558 #define CHAR_HT '\011'
1559 #define CHAR_VT '\013'
1560 #define CHAR_FF '\014'
1561 #define CHAR_CR '\015'
1562 #define CHAR_LF '\012'
1563 #define CHAR_NL CHAR_LF
1564 #define CHAR_NEL ((unsigned char)'\x85')
1565 #define CHAR_BS '\010'
1566 #define CHAR_BEL '\007'
1567 #define CHAR_ESC '\033'
1568 #define CHAR_DEL '\177'
1569
1570 #define CHAR_NULL '\0'
1571 #define CHAR_SPACE '\040'
1572 #define CHAR_EXCLAMATION_MARK '\041'
1573 #define CHAR_QUOTATION_MARK '\042'
1574 #define CHAR_NUMBER_SIGN '\043'
1575 #define CHAR_DOLLAR_SIGN '\044'
1576 #define CHAR_PERCENT_SIGN '\045'
1577 #define CHAR_AMPERSAND '\046'
1578 #define CHAR_APOSTROPHE '\047'
1579 #define CHAR_LEFT_PARENTHESIS '\050'
1580 #define CHAR_RIGHT_PARENTHESIS '\051'
1581 #define CHAR_ASTERISK '\052'
1582 #define CHAR_PLUS '\053'
1583 #define CHAR_COMMA '\054'
1584 #define CHAR_MINUS '\055'
1585 #define CHAR_DOT '\056'
1586 #define CHAR_SLASH '\057'
1587 #define CHAR_0 '\060'
1588 #define CHAR_1 '\061'
1589 #define CHAR_2 '\062'
1590 #define CHAR_3 '\063'
1591 #define CHAR_4 '\064'
1592 #define CHAR_5 '\065'
1593 #define CHAR_6 '\066'
1594 #define CHAR_7 '\067'
1595 #define CHAR_8 '\070'
1596 #define CHAR_9 '\071'
1597 #define CHAR_COLON '\072'
1598 #define CHAR_SEMICOLON '\073'
1599 #define CHAR_LESS_THAN_SIGN '\074'
1600 #define CHAR_EQUALS_SIGN '\075'
1601 #define CHAR_GREATER_THAN_SIGN '\076'
1602 #define CHAR_QUESTION_MARK '\077'
1603 #define CHAR_COMMERCIAL_AT '\100'
1604 #define CHAR_A '\101'
1605 #define CHAR_B '\102'
1606 #define CHAR_C '\103'
1607 #define CHAR_D '\104'
1608 #define CHAR_E '\105'
1609 #define CHAR_F '\106'
1610 #define CHAR_G '\107'
1611 #define CHAR_H '\110'
1612 #define CHAR_I '\111'
1613 #define CHAR_J '\112'
1614 #define CHAR_K '\113'
1615 #define CHAR_L '\114'
1616 #define CHAR_M '\115'
1617 #define CHAR_N '\116'
1618 #define CHAR_O '\117'
1619 #define CHAR_P '\120'
1620 #define CHAR_Q '\121'
1621 #define CHAR_R '\122'
1622 #define CHAR_S '\123'
1623 #define CHAR_T '\124'
1624 #define CHAR_U '\125'
1625 #define CHAR_V '\126'
1626 #define CHAR_W '\127'
1627 #define CHAR_X '\130'
1628 #define CHAR_Y '\131'
1629 #define CHAR_Z '\132'
1630 #define CHAR_LEFT_SQUARE_BRACKET '\133'
1631 #define CHAR_BACKSLASH '\134'
1632 #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1633 #define CHAR_CIRCUMFLEX_ACCENT '\136'
1634 #define CHAR_UNDERSCORE '\137'
1635 #define CHAR_GRAVE_ACCENT '\140'
1636 #define CHAR_a '\141'
1637 #define CHAR_b '\142'
1638 #define CHAR_c '\143'
1639 #define CHAR_d '\144'
1640 #define CHAR_e '\145'
1641 #define CHAR_f '\146'
1642 #define CHAR_g '\147'
1643 #define CHAR_h '\150'
1644 #define CHAR_i '\151'
1645 #define CHAR_j '\152'
1646 #define CHAR_k '\153'
1647 #define CHAR_l '\154'
1648 #define CHAR_m '\155'
1649 #define CHAR_n '\156'
1650 #define CHAR_o '\157'
1651 #define CHAR_p '\160'
1652 #define CHAR_q '\161'
1653 #define CHAR_r '\162'
1654 #define CHAR_s '\163'
1655 #define CHAR_t '\164'
1656 #define CHAR_u '\165'
1657 #define CHAR_v '\166'
1658 #define CHAR_w '\167'
1659 #define CHAR_x '\170'
1660 #define CHAR_y '\171'
1661 #define CHAR_z '\172'
1662 #define CHAR_LEFT_CURLY_BRACKET '\173'
1663 #define CHAR_VERTICAL_LINE '\174'
1664 #define CHAR_RIGHT_CURLY_BRACKET '\175'
1665 #define CHAR_TILDE '\176'
1666
1667 #define STR_HT "\011"
1668 #define STR_VT "\013"
1669 #define STR_FF "\014"
1670 #define STR_CR "\015"
1671 #define STR_NL "\012"
1672 #define STR_BS "\010"
1673 #define STR_BEL "\007"
1674 #define STR_ESC "\033"
1675 #define STR_DEL "\177"
1676
1677 #define STR_SPACE "\040"
1678 #define STR_EXCLAMATION_MARK "\041"
1679 #define STR_QUOTATION_MARK "\042"
1680 #define STR_NUMBER_SIGN "\043"
1681 #define STR_DOLLAR_SIGN "\044"
1682 #define STR_PERCENT_SIGN "\045"
1683 #define STR_AMPERSAND "\046"
1684 #define STR_APOSTROPHE "\047"
1685 #define STR_LEFT_PARENTHESIS "\050"
1686 #define STR_RIGHT_PARENTHESIS "\051"
1687 #define STR_ASTERISK "\052"
1688 #define STR_PLUS "\053"
1689 #define STR_COMMA "\054"
1690 #define STR_MINUS "\055"
1691 #define STR_DOT "\056"
1692 #define STR_SLASH "\057"
1693 #define STR_0 "\060"
1694 #define STR_1 "\061"
1695 #define STR_2 "\062"
1696 #define STR_3 "\063"
1697 #define STR_4 "\064"
1698 #define STR_5 "\065"
1699 #define STR_6 "\066"
1700 #define STR_7 "\067"
1701 #define STR_8 "\070"
1702 #define STR_9 "\071"
1703 #define STR_COLON "\072"
1704 #define STR_SEMICOLON "\073"
1705 #define STR_LESS_THAN_SIGN "\074"
1706 #define STR_EQUALS_SIGN "\075"
1707 #define STR_GREATER_THAN_SIGN "\076"
1708 #define STR_QUESTION_MARK "\077"
1709 #define STR_COMMERCIAL_AT "\100"
1710 #define STR_A "\101"
1711 #define STR_B "\102"
1712 #define STR_C "\103"
1713 #define STR_D "\104"
1714 #define STR_E "\105"
1715 #define STR_F "\106"
1716 #define STR_G "\107"
1717 #define STR_H "\110"
1718 #define STR_I "\111"
1719 #define STR_J "\112"
1720 #define STR_K "\113"
1721 #define STR_L "\114"
1722 #define STR_M "\115"
1723 #define STR_N "\116"
1724 #define STR_O "\117"
1725 #define STR_P "\120"
1726 #define STR_Q "\121"
1727 #define STR_R "\122"
1728 #define STR_S "\123"
1729 #define STR_T "\124"
1730 #define STR_U "\125"
1731 #define STR_V "\126"
1732 #define STR_W "\127"
1733 #define STR_X "\130"
1734 #define STR_Y "\131"
1735 #define STR_Z "\132"
1736 #define STR_LEFT_SQUARE_BRACKET "\133"
1737 #define STR_BACKSLASH "\134"
1738 #define STR_RIGHT_SQUARE_BRACKET "\135"
1739 #define STR_CIRCUMFLEX_ACCENT "\136"
1740 #define STR_UNDERSCORE "\137"
1741 #define STR_GRAVE_ACCENT "\140"
1742 #define STR_a "\141"
1743 #define STR_b "\142"
1744 #define STR_c "\143"
1745 #define STR_d "\144"
1746 #define STR_e "\145"
1747 #define STR_f "\146"
1748 #define STR_g "\147"
1749 #define STR_h "\150"
1750 #define STR_i "\151"
1751 #define STR_j "\152"
1752 #define STR_k "\153"
1753 #define STR_l "\154"
1754 #define STR_m "\155"
1755 #define STR_n "\156"
1756 #define STR_o "\157"
1757 #define STR_p "\160"
1758 #define STR_q "\161"
1759 #define STR_r "\162"
1760 #define STR_s "\163"
1761 #define STR_t "\164"
1762 #define STR_u "\165"
1763 #define STR_v "\166"
1764 #define STR_w "\167"
1765 #define STR_x "\170"
1766 #define STR_y "\171"
1767 #define STR_z "\172"
1768 #define STR_LEFT_CURLY_BRACKET "\173"
1769 #define STR_VERTICAL_LINE "\174"
1770 #define STR_RIGHT_CURLY_BRACKET "\175"
1771 #define STR_TILDE "\176"
1772
1773 #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1774 #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1775 #define STRING_F0 STR_F "\0"
1776 #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1777 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1778 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1779 #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1780 #define STRING_THEN STR_T STR_H STR_E STR_N
1781
1782 #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1783 #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1784 #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1785 #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1786 #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1787 #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1788 #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1789 #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1790 #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1791 #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1792 #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1793 #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1794 #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1795 #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1796
1797 #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1798
1799 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1800 #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1801 #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1802 #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1803 #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1804 #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
1805 #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
1806 #define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1807 #define STRING_UTF16_RIGHTPAR STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1808 #define STRING_UTF32_RIGHTPAR STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1809 #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1810 #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1811 #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
1812 #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
1813 #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
1814
1815 #endif /* SUPPORT_UTF */
1816
1817 /* Escape items that are just an encoding of a particular data value. */
1818
1819 #ifndef ESC_e
1820 #define ESC_e CHAR_ESC
1821 #endif
1822
1823 #ifndef ESC_f
1824 #define ESC_f CHAR_FF
1825 #endif
1826
1827 #ifndef ESC_n
1828 #define ESC_n CHAR_LF
1829 #endif
1830
1831 #ifndef ESC_r
1832 #define ESC_r CHAR_CR
1833 #endif
1834
1835 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1836 (presumably because of all the others like size_t). */
1837
1838 #ifndef ESC_tee
1839 #define ESC_tee CHAR_HT
1840 #endif
1841
1842 /* Codes for different types of Unicode property */
1843
1844 #define PT_ANY 0 /* Any property - matches all chars */
1845 #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1846 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1847 #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1848 #define PT_SC 4 /* Script (e.g. Han) */
1849 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1850 #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1851 #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1852 #define PT_WORD 8 /* Word - L plus N plus underscore */
1853 #define PT_CLIST 9 /* Pseudo-property: match character list */
1854 #define PT_UCNC 10 /* Universal Character nameable character */
1855
1856 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1857 contain characters with values greater than 255. */
1858
1859 #define XCL_NOT 0x01 /* Flag: this is a negative class */
1860 #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1861
1862 #define XCL_END 0 /* Marks end of individual items */
1863 #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1864 #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1865 #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1866 #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1867
1868 /* These are escaped items that aren't just an encoding of a particular data
1869 value such as \n. They must have non-zero values, as check_escape() returns
1870 0 for a data character. Also, they must appear in the same order as in the opcode
1871 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1872 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1873 used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1874 non-DOTALL mode, "." behaves like \N.
1875
1876 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1877 when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1878 They must be contiguous, and remain in order so that the replacements can be
1879 looked up from a table.
1880
1881 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1882 check_escape(). There are two tests in the code for an escape
1883 greater than ESC_b and less than ESC_Z to detect the types that may be
1884 repeated. These are the types that consume characters. If any new escapes are
1885 put in between that don't consume a character, that code will have to change.
1886 */
1887
1888 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1889 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1890 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1891 ESC_E, ESC_Q, ESC_g, ESC_k,
1892 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1893
1894 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1895 OP_EOD must correspond in order to the list of escapes immediately above.
1896
1897 *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1898 that follow must also be updated to match. There are also tables called
1899 "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1900
1901 enum {
1902 OP_END, /* 0 End of pattern */
1903
1904 /* Values corresponding to backslashed metacharacters */
1905
1906 OP_SOD, /* 1 Start of data: \A */
1907 OP_SOM, /* 2 Start of match (subject + offset): \G */
1908 OP_SET_SOM, /* 3 Set start of match (\K) */
1909 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1910 OP_WORD_BOUNDARY, /* 5 \b */
1911 OP_NOT_DIGIT, /* 6 \D */
1912 OP_DIGIT, /* 7 \d */
1913 OP_NOT_WHITESPACE, /* 8 \S */
1914 OP_WHITESPACE, /* 9 \s */
1915 OP_NOT_WORDCHAR, /* 10 \W */
1916 OP_WORDCHAR, /* 11 \w */
1917
1918 OP_ANY, /* 12 Match any character except newline (\N) */
1919 OP_ALLANY, /* 13 Match any character */
1920 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1921 OP_NOTPROP, /* 15 \P (not Unicode property) */
1922 OP_PROP, /* 16 \p (Unicode property) */
1923 OP_ANYNL, /* 17 \R (any newline sequence) */
1924 OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1925 OP_HSPACE, /* 19 \h (horizontal whitespace) */
1926 OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1927 OP_VSPACE, /* 21 \v (vertical whitespace) */
1928 OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1929 OP_EODN, /* 23 End of data or \n at end of data (\Z) */
1930 OP_EOD, /* 24 End of data (\z) */
1931
1932 OP_CIRC, /* 25 Start of line - not multiline */
1933 OP_CIRCM, /* 26 Start of line - multiline */
1934 OP_DOLL, /* 27 End of line - not multiline */
1935 OP_DOLLM, /* 28 End of line - multiline */
1936 OP_CHAR, /* 29 Match one character, casefully */
1937 OP_CHARI, /* 30 Match one character, caselessly */
1938 OP_NOT, /* 31 Match one character, not the given one, casefully */
1939 OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1940
1941 /* The following sets of 13 opcodes must always be kept in step because
1942 the offset from the first one is used to generate the others. */
1943
1944 /**** Single characters, caseful, must precede the caseless ones ****/
1945
1946 OP_STAR, /* 33 The maximizing and minimizing versions of */
1947 OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1948 OP_PLUS, /* 35 the minimizing one second. */
1949 OP_MINPLUS, /* 36 */
1950 OP_QUERY, /* 37 */
1951 OP_MINQUERY, /* 38 */
1952
1953 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1954 OP_MINUPTO, /* 40 */
1955 OP_EXACT, /* 41 Exactly n matches */
1956
1957 OP_POSSTAR, /* 42 Possessified star, caseful */
1958 OP_POSPLUS, /* 43 Possessified plus, caseful */
1959 OP_POSQUERY, /* 44 Posesssified query, caseful */
1960 OP_POSUPTO, /* 45 Possessified upto, caseful */
1961
1962 /**** Single characters, caseless, must follow the caseful ones */
1963
1964 OP_STARI, /* 46 */
1965 OP_MINSTARI, /* 47 */
1966 OP_PLUSI, /* 48 */
1967 OP_MINPLUSI, /* 49 */
1968 OP_QUERYI, /* 50 */
1969 OP_MINQUERYI, /* 51 */
1970
1971 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1972 OP_MINUPTOI, /* 53 */
1973 OP_EXACTI, /* 54 */
1974
1975 OP_POSSTARI, /* 55 Possessified star, caseless */
1976 OP_POSPLUSI, /* 56 Possessified plus, caseless */
1977 OP_POSQUERYI, /* 57 Posesssified query, caseless */
1978 OP_POSUPTOI, /* 58 Possessified upto, caseless */
1979
1980 /**** The negated ones must follow the non-negated ones, and match them ****/
1981 /**** Negated single character, caseful; must precede the caseless ones ****/
1982
1983 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
1984 OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
1985 OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
1986 OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
1987 OP_NOTQUERY, /* 63 */
1988 OP_NOTMINQUERY, /* 64 */
1989
1990 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
1991 OP_NOTMINUPTO, /* 66 */
1992 OP_NOTEXACT, /* 67 Exactly n matches */
1993
1994 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
1995 OP_NOTPOSPLUS, /* 69 */
1996 OP_NOTPOSQUERY, /* 70 */
1997 OP_NOTPOSUPTO, /* 71 */
1998
1999 /**** Negated single character, caseless; must follow the caseful ones ****/
2000
2001 OP_NOTSTARI, /* 72 */
2002 OP_NOTMINSTARI, /* 73 */
2003 OP_NOTPLUSI, /* 74 */
2004 OP_NOTMINPLUSI, /* 75 */
2005 OP_NOTQUERYI, /* 76 */
2006 OP_NOTMINQUERYI, /* 77 */
2007
2008 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
2009 OP_NOTMINUPTOI, /* 79 */
2010 OP_NOTEXACTI, /* 80 Exactly n matches */
2011
2012 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
2013 OP_NOTPOSPLUSI, /* 82 */
2014 OP_NOTPOSQUERYI, /* 83 */
2015 OP_NOTPOSUPTOI, /* 84 */
2016
2017 /**** Character types ****/
2018
2019 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
2020 OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
2021 OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
2022 OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
2023 OP_TYPEQUERY, /* 89 */
2024 OP_TYPEMINQUERY, /* 90 */
2025
2026 OP_TYPEUPTO, /* 91 From 0 to n matches */
2027 OP_TYPEMINUPTO, /* 92 */
2028 OP_TYPEEXACT, /* 93 Exactly n matches */
2029
2030 OP_TYPEPOSSTAR, /* 94 Possessified versions */
2031 OP_TYPEPOSPLUS, /* 95 */
2032 OP_TYPEPOSQUERY, /* 96 */
2033 OP_TYPEPOSUPTO, /* 97 */
2034
2035 /* These are used for character classes and back references; only the
2036 first six are the same as the sets above. */
2037
2038 OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
2039 OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
2040 OP_CRPLUS, /* 100 the minimizing one second. These codes must */
2041 OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
2042 OP_CRQUERY, /* 102 */
2043 OP_CRMINQUERY, /* 103 */
2044
2045 OP_CRRANGE, /* 104 These are different to the three sets above. */
2046 OP_CRMINRANGE, /* 105 */
2047
2048 /* End of quantifier opcodes */
2049
2050 OP_CLASS, /* 106 Match a character class, chars < 256 only */
2051 OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
2052 class - the difference is relevant only when a
2053 character > 255 is encountered. */
2054 OP_XCLASS, /* 108 Extended class for handling > 255 chars within the
2055 class. This does both positive and negative. */
2056 OP_REF, /* 109 Match a back reference, casefully */
2057 OP_REFI, /* 110 Match a back reference, caselessly */
2058 OP_DNREF, /* 111 Match a duplicate name backref, casefully */
2059 OP_DNREFI, /* 112 Match a duplicate name backref, caselessly */
2060 OP_RECURSE, /* 113 Match a numbered subpattern (possibly recursive) */
2061 OP_CALLOUT, /* 114 Call out to external function if provided */
2062
2063 OP_ALT, /* 115 Start of alternation */
2064 OP_KET, /* 116 End of group that doesn't have an unbounded repeat */
2065 OP_KETRMAX, /* 117 These two must remain together and in this */
2066 OP_KETRMIN, /* 118 order. They are for groups the repeat for ever. */
2067 OP_KETRPOS, /* 119 Possessive unlimited repeat. */
2068
2069 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
2070 asserts must remain in order. */
2071
2072 OP_REVERSE, /* 129 Move pointer back - used in lookbehind assertions */
2073 OP_ASSERT, /* 121 Positive lookahead */
2074 OP_ASSERT_NOT, /* 122 Negative lookahead */
2075 OP_ASSERTBACK, /* 123 Positive lookbehind */
2076 OP_ASSERTBACK_NOT, /* 124 Negative lookbehind */
2077
2078 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
2079 after the assertions, with ONCE first, as there's a test for >= ONCE for a
2080 subpattern that isn't an assertion. The POS versions must immediately follow
2081 the non-POS versions in each case. */
2082
2083 OP_ONCE, /* 125 Atomic group, contains captures */
2084 OP_ONCE_NC, /* 126 Atomic group containing no captures */
2085 OP_BRA, /* 127 Start of non-capturing bracket */
2086 OP_BRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
2087 OP_CBRA, /* 129 Start of capturing bracket */
2088 OP_CBRAPOS, /* 130 Ditto, with unlimited, possessive repeat */
2089 OP_COND, /* 131 Conditional group */
2090
2091 /* These five must follow the previous five, in the same order. There's a
2092 check for >= SBRA to distinguish the two sets. */
2093
2094 OP_SBRA, /* 132 Start of non-capturing bracket, check empty */
2095 OP_SBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
2096 OP_SCBRA, /* 134 Start of capturing bracket, check empty */
2097 OP_SCBRAPOS, /* 135 Ditto, with unlimited, possessive repeat */
2098 OP_SCOND, /* 136 Conditional group, check empty */
2099
2100 /* The next two pairs must (respectively) be kept together. */
2101
2102 OP_CREF, /* 137 Used to hold a capture number as condition */
2103 OP_NCREF, /* 138 Same, but generated by a name reference*/
2104 OP_RREF, /* 139 Used to hold a recursion number as condition */
2105 OP_NRREF, /* 140 Same, but generated by a name reference*/
2106 OP_DEF, /* 141 The DEFINE condition */
2107
2108 OP_BRAZERO, /* 142 These two must remain together and in this */
2109 OP_BRAMINZERO, /* 143 order. */
2110 OP_BRAPOSZERO, /* 144 */
2111
2112 /* These are backtracking control verbs */
2113
2114 OP_MARK, /* 145 always has an argument */
2115 OP_PRUNE, /* 146 */
2116 OP_PRUNE_ARG, /* 147 same, but with argument */
2117 OP_SKIP, /* 148 */
2118 OP_SKIP_ARG, /* 149 same, but with argument */
2119 OP_THEN, /* 150 */
2120 OP_THEN_ARG, /* 151 same, but with argument */
2121 OP_COMMIT, /* 152 */
2122
2123 /* These are forced failure and success verbs */
2124
2125 OP_FAIL, /* 153 */
2126 OP_ACCEPT, /* 154 */
2127 OP_ASSERT_ACCEPT, /* 155 Used inside assertions */
2128 OP_CLOSE, /* 156 Used before OP_ACCEPT to close open captures */
2129
2130 /* This is used to skip a subpattern with a {0} quantifier */
2131
2132 OP_SKIPZERO, /* 157 */
2133
2134 /* This is not an opcode, but is used to check that tables indexed by opcode
2135 are the correct length, in order to catch updating errors - there have been
2136 some in the past. */
2137
2138 OP_TABLE_LENGTH
2139 };
2140
2141 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2142 definitions that follow must also be updated to match. There are also tables
2143 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
2144
2145
2146 /* This macro defines textual names for all the opcodes. These are used only
2147 for debugging, and some of them are only partial names. The macro is referenced
2148 only in pcre_printint.c, which fills out the full names in many cases (and in
2149 some cases doesn't actually use these names at all). */
2150
2151 #define OP_NAME_LIST \
2152 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
2153 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
2154 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
2155 "extuni", "\\Z", "\\z", \
2156 "^", "^", "$", "$", "char", "chari", "not", "noti", \
2157 "*", "*?", "+", "+?", "?", "??", \
2158 "{", "{", "{", \
2159 "*+","++", "?+", "{", \
2160 "*", "*?", "+", "+?", "?", "??", \
2161 "{", "{", "{", \
2162 "*+","++", "?+", "{", \
2163 "*", "*?", "+", "+?", "?", "??", \
2164 "{", "{", "{", \
2165 "*+","++", "?+", "{", \
2166 "*", "*?", "+", "+?", "?", "??", \
2167 "{", "{", "{", \
2168 "*+","++", "?+", "{", \
2169 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
2170 "*+","++", "?+", "{", \
2171 "*", "*?", "+", "+?", "?", "??", "{", "{", \
2172 "class", "nclass", "xclass", "Ref", "Refi", "DnRef", "DnRefi", \
2173 "Recurse", "Callout", \
2174 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
2175 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
2176 "Once", "Once_NC", \
2177 "Bra", "BraPos", "CBra", "CBraPos", \
2178 "Cond", \
2179 "SBra", "SBraPos", "SCBra", "SCBraPos", \
2180 "SCond", \
2181 "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
2182 "Brazero", "Braminzero", "Braposzero", \
2183 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
2184 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
2185 "*ACCEPT", "*ASSERT_ACCEPT", \
2186 "Close", "Skip zero"
2187
2188
2189 /* This macro defines the length of fixed length operations in the compiled
2190 regex. The lengths are used when searching for specific things, and also in the
2191 debugging printing of a compiled regex. We use a macro so that it can be
2192 defined close to the definitions of the opcodes themselves.
2193
2194 As things have been extended, some of these are no longer fixed lenths, but are
2195 minima instead. For example, the length of a single-character repeat may vary
2196 in UTF-8 mode. The code that uses this table must know about such things. */
2197
2198 #define OP_LENGTHS \
2199 1, /* End */ \
2200 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
2201 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
2202 1, 1, 1, /* Any, AllAny, Anybyte */ \
2203 3, 3, /* \P, \p */ \
2204 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
2205 1, /* \X */ \
2206 1, 1, 1, 1, 1, 1, /* \Z, \z, ^, ^M, $, $M */ \
2207 2, /* Char - the minimum length */ \
2208 2, /* Chari - the minimum length */ \
2209 2, /* not */ \
2210 2, /* noti */ \
2211 /* Positive single-char repeats ** These are */ \
2212 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
2213 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto, minupto ** mode */ \
2214 2+IMM2_SIZE, /* exact */ \
2215 2, 2, 2, 2+IMM2_SIZE, /* *+, ++, ?+, upto+ */ \
2216 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
2217 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto I, minupto I */ \
2218 2+IMM2_SIZE, /* exact I */ \
2219 2, 2, 2, 2+IMM2_SIZE, /* *+I, ++I, ?+I, upto+I */ \
2220 /* Negative single-char repeats - only for chars < 256 */ \
2221 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
2222 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto, minupto */ \
2223 2+IMM2_SIZE, /* NOT exact */ \
2224 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *, +, ?, upto */ \
2225 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
2226 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto I, minupto I */ \
2227 2+IMM2_SIZE, /* NOT exact I */ \
2228 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *I, +I, ?I, upto I */ \
2229 /* Positive type repeats */ \
2230 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
2231 2+IMM2_SIZE, 2+IMM2_SIZE, /* Type upto, minupto */ \
2232 2+IMM2_SIZE, /* Type exact */ \
2233 2, 2, 2, 2+IMM2_SIZE, /* Possessive *+, ++, ?+, upto+ */ \
2234 /* Character class & ref repeats */ \
2235 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
2236 1+2*IMM2_SIZE, 1+2*IMM2_SIZE, /* CRRANGE, CRMINRANGE */ \
2237 1+(32/sizeof(pcre_uchar)), /* CLASS */ \
2238 1+(32/sizeof(pcre_uchar)), /* NCLASS */ \
2239 0, /* XCLASS - variable length */ \
2240 1+IMM2_SIZE, /* REF */ \
2241 1+IMM2_SIZE, /* REFI */ \
2242 1+2*IMM2_SIZE, /* DNREF */ \
2243 1+2*IMM2_SIZE, /* DNREFI */ \
2244 1+LINK_SIZE, /* RECURSE */ \
2245 2+2*LINK_SIZE, /* CALLOUT */ \
2246 1+LINK_SIZE, /* Alt */ \
2247 1+LINK_SIZE, /* Ket */ \
2248 1+LINK_SIZE, /* KetRmax */ \
2249 1+LINK_SIZE, /* KetRmin */ \
2250 1+LINK_SIZE, /* KetRpos */ \
2251 1+LINK_SIZE, /* Reverse */ \
2252 1+LINK_SIZE, /* Assert */ \
2253 1+LINK_SIZE, /* Assert not */ \
2254 1+LINK_SIZE, /* Assert behind */ \
2255 1+LINK_SIZE, /* Assert behind not */ \
2256 1+LINK_SIZE, /* ONCE */ \
2257 1+LINK_SIZE, /* ONCE_NC */ \
2258 1+LINK_SIZE, /* BRA */ \
2259 1+LINK_SIZE, /* BRAPOS */ \
2260 1+LINK_SIZE+IMM2_SIZE, /* CBRA */ \
2261 1+LINK_SIZE+IMM2_SIZE, /* CBRAPOS */ \
2262 1+LINK_SIZE, /* COND */ \
2263 1+LINK_SIZE, /* SBRA */ \
2264 1+LINK_SIZE, /* SBRAPOS */ \
2265 1+LINK_SIZE+IMM2_SIZE, /* SCBRA */ \
2266 1+LINK_SIZE+IMM2_SIZE, /* SCBRAPOS */ \
2267 1+LINK_SIZE, /* SCOND */ \
2268 1+IMM2_SIZE, 1+IMM2_SIZE, /* CREF, NCREF */ \
2269 1+IMM2_SIZE, 1+IMM2_SIZE, /* RREF, NRREF */ \
2270 1, /* DEF */ \
2271 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
2272 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
2273 1, 3, /* SKIP, SKIP_ARG */ \
2274 1, 3, /* THEN, THEN_ARG */ \
2275 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
2276 1+IMM2_SIZE, 1 /* CLOSE, SKIPZERO */
2277
2278 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2279 condition. */
2280
2281 #define RREF_ANY 0xffff
2282
2283 /* Compile time error code numbers. They are given names so that they can more
2284 easily be tracked. When a new number is added, the table called eint in
2285 pcreposix.c must be updated. */
2286
2287 enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
2288 ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2289 ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2290 ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2291 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2292 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2293 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2294 ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERR78, ERRCOUNT };
2295
2296 /* JIT compiling modes. The function list is indexed by them. */
2297 enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2298 JIT_NUMBER_OF_COMPILE_MODES };
2299
2300 /* The real format of the start of the pcre block; the index of names and the
2301 code vector run on as long as necessary after the end. We store an explicit
2302 offset to the name table so that if a regex is compiled on one host, saved, and
2303 then run on another where the size of pointers is different, all might still
2304 be well.
2305
2306 The size of the structure must be a multiple of 8 bytes. For the case of
2307 compiled-on-4 and run-on-8, we include an extra pointer that is always NULL so
2308 that there are an even number of pointers which therefore are a multiple of 8
2309 bytes.
2310
2311 It is necessary to fork the struct for the 32 bit library, since it needs to
2312 use pcre_uint32 for first_char and req_char. We can't put an ifdef inside the
2313 typedef because pcretest needs access to the struct of the 8-, 16- and 32-bit
2314 variants.
2315
2316 *** WARNING ***
2317 When new fields are added to these structures, remember to adjust the code in
2318 pcre_byte_order.c that is concerned with swapping the byte order of the fields
2319 when a compiled regex is reloaded on a host with different endianness.
2320 *** WARNING ***
2321 There is also similar byte-flipping code in pcretest.c, which is used for
2322 testing the byte-flipping features. It must also be kept in step.
2323 *** WARNING ***
2324 */
2325
2326 typedef struct real_pcre8_or_16 {
2327 pcre_uint32 magic_number;
2328 pcre_uint32 size; /* Total that was malloced */
2329 pcre_uint32 options; /* Public options */
2330 pcre_uint32 flags; /* Private flags */
2331 pcre_uint32 limit_match; /* Limit set from regex */
2332 pcre_uint32 limit_recursion; /* Limit set from regex */
2333 pcre_uint16 first_char; /* Starting character */
2334 pcre_uint16 req_char; /* This character must be seen */
2335 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2336 pcre_uint16 top_bracket; /* Highest numbered group */
2337 pcre_uint16 top_backref; /* Highest numbered back reference */
2338 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2339 pcre_uint16 name_entry_size; /* Size of any name items */
2340 pcre_uint16 name_count; /* Number of name items */
2341 pcre_uint16 ref_count; /* Reference count */
2342 pcre_uint16 dummy1; /* To ensure size is a multiple of 8 */
2343 pcre_uint16 dummy2; /* To ensure size is a multiple of 8 */
2344 pcre_uint16 dummy3; /* To ensure size is a multiple of 8 */
2345 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2346 void *nullpad; /* NULL padding */
2347 } real_pcre8_or_16;
2348
2349 typedef struct real_pcre8_or_16 real_pcre;
2350 typedef struct real_pcre8_or_16 real_pcre16;
2351
2352 typedef struct real_pcre32 {
2353 pcre_uint32 magic_number;
2354 pcre_uint32 size; /* Total that was malloced */
2355 pcre_uint32 options; /* Public options */
2356 pcre_uint32 flags; /* Private flags */
2357 pcre_uint32 limit_match; /* Limit set from regex */
2358 pcre_uint32 limit_recursion; /* Limit set from regex */
2359 pcre_uint32 first_char; /* Starting character */
2360 pcre_uint32 req_char; /* This character must be seen */
2361 pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
2362 pcre_uint16 top_bracket; /* Highest numbered group */
2363 pcre_uint16 top_backref; /* Highest numbered back reference */
2364 pcre_uint16 name_table_offset; /* Offset to name table that follows */
2365 pcre_uint16 name_entry_size; /* Size of any name items */
2366 pcre_uint16 name_count; /* Number of name items */
2367 pcre_uint16 ref_count; /* Reference count */
2368 pcre_uint16 dummy; /* To ensure size is a multiple of 8 */
2369 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
2370 void *nullpad; /* NULL padding */
2371 } real_pcre32;
2372
2373 #if defined COMPILE_PCRE8
2374 #define REAL_PCRE real_pcre
2375 #elif defined COMPILE_PCRE16
2376 #define REAL_PCRE real_pcre16
2377 #elif defined COMPILE_PCRE32
2378 #define REAL_PCRE real_pcre32
2379 #endif
2380
2381 /* Assert that the size of REAL_PCRE is divisible by 8 */
2382 typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2383
2384 /* Needed in pcretest to access some fields in the real_pcre* structures
2385 * directly. They're unified for 8/16/32 bits since the structs only differ
2386 * after these fields; if that ever changes, need to fork those defines into
2387 * 8/16 and 32 bit versions. */
2388 #define REAL_PCRE_MAGIC(re) (((REAL_PCRE*)re)->magic_number)
2389 #define REAL_PCRE_SIZE(re) (((REAL_PCRE*)re)->size)
2390 #define REAL_PCRE_OPTIONS(re) (((REAL_PCRE*)re)->options)
2391 #define REAL_PCRE_FLAGS(re) (((REAL_PCRE*)re)->flags)
2392
2393 /* The format of the block used to store data from pcre_study(). The same
2394 remark (see NOTE above) about extending this structure applies. */
2395
2396 typedef struct pcre_study_data {
2397 pcre_uint32 size; /* Total that was malloced */
2398 pcre_uint32 flags; /* Private flags */
2399 pcre_uint8 start_bits[32]; /* Starting char bits */
2400 pcre_uint32 minlength; /* Minimum subject length */
2401 } pcre_study_data;
2402
2403 /* Structure for building a chain of open capturing subpatterns during
2404 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2405 encountered. This is also used to identify subpatterns that contain recursive
2406 back references to themselves, so that they can be made atomic. */
2407
2408 typedef struct open_capitem {
2409 struct open_capitem *next; /* Chain link */
2410 pcre_uint16 number; /* Capture number */
2411 pcre_uint16 flag; /* Set TRUE if recursive back ref */
2412 } open_capitem;
2413
2414 /* Structure for building a list of named groups during the first pass of
2415 compiling. */
2416
2417 typedef struct named_group {
2418 const pcre_uchar *name; /* Points to the name in the pattern */
2419 int length; /* Length of the name */
2420 pcre_uint32 number; /* Group number */
2421 } named_group;
2422
2423 /* Structure for passing "static" information around between the functions
2424 doing the compiling, so that they are thread-safe. */
2425
2426 typedef struct compile_data {
2427 const pcre_uint8 *lcc; /* Points to lower casing table */
2428 const pcre_uint8 *fcc; /* Points to case-flipping table */
2429 const pcre_uint8 *cbits; /* Points to character type table */
2430 const pcre_uint8 *ctypes; /* Points to table of type maps */
2431 const pcre_uchar *start_workspace;/* The start of working space */
2432 const pcre_uchar *start_code; /* The start of the compiled code */
2433 const pcre_uchar *start_pattern; /* The start of the pattern */
2434 const pcre_uchar *end_pattern; /* The end of the pattern */
2435 pcre_uchar *hwm; /* High watermark of workspace */
2436 open_capitem *open_caps; /* Chain of open capture items */
2437 named_group *named_groups; /* Points to vector in pre-compile */
2438 pcre_uchar *name_table; /* The name/number table */
2439 int names_found; /* Number of entries so far */
2440 int name_entry_size; /* Size of each entry */
2441 int named_group_list_size; /* Number of entries in the list */
2442 int workspace_size; /* Size of workspace */
2443 unsigned int bracount; /* Count of capturing parens as we compile */
2444 int final_bracount; /* Saved value after first pass */
2445 int max_lookbehind; /* Maximum lookbehind (characters) */
2446 int top_backref; /* Maximum back reference */
2447 unsigned int backref_map; /* Bitmap of low back refs */
2448 unsigned int namedrefcount; /* Number of backreferences by name */
2449 int assert_depth; /* Depth of nested assertions */
2450 pcre_uint32 external_options; /* External (initial) options */
2451 pcre_uint32 external_flags; /* External flag bits to be set */
2452 int req_varyopt; /* "After variable item" flag for reqbyte */
2453 BOOL had_accept; /* (*ACCEPT) encountered */
2454 BOOL had_pruneorskip; /* (*PRUNE) or (*SKIP) encountered */
2455 BOOL check_lookbehind; /* Lookbehinds need later checking */
2456 BOOL dupnames; /* Duplicate names exist */
2457 int nltype; /* Newline type */
2458 int nllen; /* Newline string length */
2459 pcre_uchar nl[4]; /* Newline string when fixed length */
2460 } compile_data;
2461
2462 /* Structure for maintaining a chain of pointers to the currently incomplete
2463 branches, for testing for left recursion while compiling. */
2464
2465 typedef struct branch_chain {
2466 struct branch_chain *outer;
2467 pcre_uchar *current_branch;
2468 } branch_chain;
2469
2470 /* Structure for items in a linked list that represents an explicit recursive
2471 call within the pattern; used by pcre_exec(). */
2472
2473 typedef struct recursion_info {
2474 struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2475 unsigned int group_num; /* Number of group that was called */
2476 int *offset_save; /* Pointer to start of saved offsets */
2477 int saved_max; /* Number of saved offsets */
2478 int saved_capture_last; /* Last capture number */
2479 PCRE_PUCHAR subject_position; /* Position at start of recursion */
2480 } recursion_info;
2481
2482 /* A similar structure for pcre_dfa_exec(). */
2483
2484 typedef struct dfa_recursion_info {
2485 struct dfa_recursion_info *prevrec;
2486 int group_num;
2487 PCRE_PUCHAR subject_position;
2488 } dfa_recursion_info;
2489
2490 /* Structure for building a chain of data for holding the values of the subject
2491 pointer at the start of each subpattern, so as to detect when an empty string
2492 has been matched by a subpattern - to break infinite loops; used by
2493 pcre_exec(). */
2494
2495 typedef struct eptrblock {
2496 struct eptrblock *epb_prev;
2497 PCRE_PUCHAR epb_saved_eptr;
2498 } eptrblock;
2499
2500
2501 /* Structure for passing "static" information around between the functions
2502 doing traditional NFA matching, so that they are thread-safe. */
2503
2504 typedef struct match_data {
2505 unsigned long int match_call_count; /* As it says */
2506 unsigned long int match_limit; /* As it says */
2507 unsigned long int match_limit_recursion; /* As it says */
2508 int *offset_vector; /* Offset vector */
2509 int offset_end; /* One past the end */
2510 int offset_max; /* The maximum usable for return data */
2511 int nltype; /* Newline type */
2512 int nllen; /* Newline string length */
2513 int name_count; /* Number of names in name table */
2514 int name_entry_size; /* Size of entry in names table */
2515 unsigned int skip_arg_count; /* For counting SKIP_ARGs */
2516 unsigned int ignore_skip_arg; /* For re-run when SKIP arg name not found */
2517 pcre_uchar *name_table; /* Table of names */
2518 pcre_uchar nl[4]; /* Newline string when fixed */
2519 const pcre_uint8 *lcc; /* Points to lower casing table */
2520 const pcre_uint8 *fcc; /* Points to case-flipping table */
2521 const pcre_uint8 *ctypes; /* Points to table of type maps */
2522 BOOL notbol; /* NOTBOL flag */
2523 BOOL noteol; /* NOTEOL flag */
2524 BOOL utf; /* UTF-8 / UTF-16 flag */
2525 BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
2526 BOOL use_ucp; /* PCRE_UCP flag */
2527 BOOL endonly; /* Dollar not before final \n */
2528 BOOL notempty; /* Empty string match not wanted */
2529 BOOL notempty_atstart; /* Empty string match at start not wanted */
2530 BOOL hitend; /* Hit the end of the subject at some point */
2531 BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
2532 BOOL hasthen; /* Pattern contains (*THEN) */
2533 const pcre_uchar *start_code; /* For use when recursing */
2534 PCRE_PUCHAR start_subject; /* Start of the subject string */
2535 PCRE_PUCHAR end_subject; /* End of the subject string */
2536 PCRE_PUCHAR start_match_ptr; /* Start of matched string */
2537 PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
2538 PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
2539 int partial; /* PARTIAL options */
2540 int end_offset_top; /* Highwater mark at end of match */
2541 pcre_int32 capture_last; /* Most recent capture number + overflow flag */
2542 int start_offset; /* The start offset value */
2543 int match_function_type; /* Set for certain special calls of MATCH() */
2544 eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
2545 int eptrn; /* Next free eptrblock */
2546 recursion_info *recursive; /* Linked list of recursion data */
2547 void *callout_data; /* To pass back to callouts */
2548 const pcre_uchar *mark; /* Mark pointer to pass back on success */
2549 const pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2550 const pcre_uchar *once_target; /* Where to back up to for atomic groups */
2551 #ifdef NO_RECURSE
2552 void *match_frames_base; /* For remembering malloc'd frames */
2553 #endif
2554 } match_data;
2555
2556 /* A similar structure is used for the same purpose by the DFA matching
2557 functions. */
2558
2559 typedef struct dfa_match_data {
2560 const pcre_uchar *start_code; /* Start of the compiled pattern */
2561 const pcre_uchar *start_subject ; /* Start of the subject string */
2562 const pcre_uchar *end_subject; /* End of subject string */
2563 const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2564 const pcre_uint8 *tables; /* Character tables */
2565 int start_offset; /* The start offset value */
2566 int moptions; /* Match options */
2567 int poptions; /* Pattern options */
2568 int nltype; /* Newline type */
2569 int nllen; /* Newline string length */
2570 pcre_uchar nl[4]; /* Newline string when fixed */
2571 void *callout_data; /* To pass back to callouts */
2572 dfa_recursion_info *recursive; /* Linked list of recursion data */
2573 } dfa_match_data;
2574
2575 /* Bit definitions for entries in the pcre_ctypes table. */
2576
2577 #define ctype_space 0x01
2578 #define ctype_letter 0x02
2579 #define ctype_digit 0x04
2580 #define ctype_xdigit 0x08
2581 #define ctype_word 0x10 /* alphanumeric or '_' */
2582 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
2583
2584 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2585 of bits for a class map. Some classes are built by combining these tables. */
2586
2587 #define cbit_space 0 /* [:space:] or \s */
2588 #define cbit_xdigit 32 /* [:xdigit:] */
2589 #define cbit_digit 64 /* [:digit:] or \d */
2590 #define cbit_upper 96 /* [:upper:] */
2591 #define cbit_lower 128 /* [:lower:] */
2592 #define cbit_word 160 /* [:word:] or \w */
2593 #define cbit_graph 192 /* [:graph:] */
2594 #define cbit_print 224 /* [:print:] */
2595 #define cbit_punct 256 /* [:punct:] */
2596 #define cbit_cntrl 288 /* [:cntrl:] */
2597 #define cbit_length 320 /* Length of the cbits table */
2598
2599 /* Offsets of the various tables from the base tables pointer, and
2600 total length. */
2601
2602 #define lcc_offset 0
2603 #define fcc_offset 256
2604 #define cbits_offset 512
2605 #define ctypes_offset (cbits_offset + cbit_length)
2606 #define tables_length (ctypes_offset + 256)
2607
2608 /* Internal function and data prefixes. */
2609
2610 #if defined COMPILE_PCRE8
2611 #ifndef PUBL
2612 #define PUBL(name) pcre_##name
2613 #endif
2614 #ifndef PRIV
2615 #define PRIV(name) _pcre_##name
2616 #endif
2617 #elif defined COMPILE_PCRE16
2618 #ifndef PUBL
2619 #define PUBL(name) pcre16_##name
2620 #endif
2621 #ifndef PRIV
2622 #define PRIV(name) _pcre16_##name
2623 #endif
2624 #elif defined COMPILE_PCRE32
2625 #ifndef PUBL
2626 #define PUBL(name) pcre32_##name
2627 #endif
2628 #ifndef PRIV
2629 #define PRIV(name) _pcre32_##name
2630 #endif
2631 #else
2632 #error Unsupported compiling mode
2633 #endif /* COMPILE_PCRE[8|16|32] */
2634
2635 /* Layout of the UCP type table that translates property names into types and
2636 codes. Each entry used to point directly to a name, but to reduce the number of
2637 relocations in shared libraries, it now has an offset into a single string
2638 instead. */
2639
2640 typedef struct {
2641 pcre_uint16 name_offset;
2642 pcre_uint16 type;
2643 pcre_uint16 value;
2644 } ucp_type_table;
2645
2646
2647 /* Internal shared data tables. These are tables that are used by more than one
2648 of the exported public functions. They have to be "external" in the C sense,
2649 but are not part of the PCRE public API. The data for these tables is in the
2650 pcre_tables.c module. */
2651
2652 #ifdef COMPILE_PCRE8
2653 extern const int PRIV(utf8_table1)[];
2654 extern const int PRIV(utf8_table1_size);
2655 extern const int PRIV(utf8_table2)[];
2656 extern const int PRIV(utf8_table3)[];
2657 extern const pcre_uint8 PRIV(utf8_table4)[];
2658 #endif /* COMPILE_PCRE8 */
2659
2660 extern const char PRIV(utt_names)[];
2661 extern const ucp_type_table PRIV(utt)[];
2662 extern const int PRIV(utt_size);
2663
2664 extern const pcre_uint8 PRIV(OP_lengths)[];
2665 extern const pcre_uint8 PRIV(default_tables)[];
2666
2667 extern const pcre_uint32 PRIV(hspace_list)[];
2668 extern const pcre_uint32 PRIV(vspace_list)[];
2669
2670
2671 /* Internal shared functions. These are functions that are used by more than
2672 one of the exported public functions. They have to be "external" in the C
2673 sense, but are not part of the PCRE public API. */
2674
2675 /* String comparison functions. */
2676 #if defined COMPILE_PCRE8
2677
2678 #define STRCMP_UC_UC(str1, str2) \
2679 strcmp((char *)(str1), (char *)(str2))
2680 #define STRCMP_UC_C8(str1, str2) \
2681 strcmp((char *)(str1), (str2))
2682 #define STRNCMP_UC_UC(str1, str2, num) \
2683 strncmp((char *)(str1), (char *)(str2), (num))
2684 #define STRNCMP_UC_C8(str1, str2, num) \
2685 strncmp((char *)(str1), (str2), (num))
2686 #define STRLEN_UC(str) strlen((const char *)str)
2687
2688 #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2689
2690 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2691 const pcre_uchar *);
2692 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2693 const char *);
2694 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2695 const pcre_uchar *, unsigned int num);
2696 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2697 const char *, unsigned int num);
2698 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2699
2700 #define STRCMP_UC_UC(str1, str2) \
2701 PRIV(strcmp_uc_uc)((str1), (str2))
2702 #define STRCMP_UC_C8(str1, str2) \
2703 PRIV(strcmp_uc_c8)((str1), (str2))
2704 #define STRNCMP_UC_UC(str1, str2, num) \
2705 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2706 #define STRNCMP_UC_C8(str1, str2, num) \
2707 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2708 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2709
2710 #endif /* COMPILE_PCRE[8|16|32] */
2711
2712 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
2713
2714 #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
2715 #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
2716
2717 #elif defined COMPILE_PCRE32
2718
2719 extern int PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
2720 const pcre_uchar *);
2721 extern int PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
2722 const char *);
2723
2724 #define STRCMP_UC_UC_TEST(str1, str2) \
2725 (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
2726 #define STRCMP_UC_C8_TEST(str1, str2) \
2727 (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
2728
2729 #endif /* COMPILE_PCRE[8|16|32] */
2730
2731 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2732 extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2733 int *, BOOL);
2734 extern unsigned int PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2735 extern int PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2736 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2737 int *, BOOL);
2738 extern BOOL PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
2739
2740 #ifdef SUPPORT_JIT
2741 extern void PRIV(jit_compile)(const REAL_PCRE *,
2742 PUBL(extra) *, int);
2743 extern int PRIV(jit_exec)(const PUBL(extra) *,
2744 const pcre_uchar *, int, int, int, int *, int);
2745 extern void PRIV(jit_free)(void *);
2746 extern int PRIV(jit_get_size)(void *);
2747 extern const char* PRIV(jit_get_target)(void);
2748 #endif
2749
2750 /* Unicode character database (UCD) */
2751
2752 typedef struct {
2753 pcre_uint8 script; /* ucp_Arabic, etc. */
2754 pcre_uint8 chartype; /* ucp_Cc, etc. (general categories) */
2755 pcre_uint8 gbprop; /* ucp_gbControl, etc. (grapheme break property) */
2756 pcre_uint8 caseset; /* offset to multichar other cases or zero */
2757 pcre_int32 other_case; /* offset to other case, or zero if none */
2758 } ucd_record;
2759
2760 extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2761 extern const ucd_record PRIV(ucd_records)[];
2762 extern const pcre_uint8 PRIV(ucd_stage1)[];
2763 extern const pcre_uint16 PRIV(ucd_stage2)[];
2764 extern const pcre_uint32 PRIV(ucp_gentype)[];
2765 extern const pcre_uint32 PRIV(ucp_gbtable)[];
2766 #ifdef SUPPORT_JIT
2767 extern const int PRIV(ucp_typerange)[];
2768 #endif
2769
2770 #ifdef SUPPORT_UCP
2771 /* UCD access macros */
2772
2773 #define UCD_BLOCK_SIZE 128
2774 #define GET_UCD(ch) (PRIV(ucd_records) + \
2775 PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
2776 UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
2777
2778 #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2779 #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2780 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2781 #define UCD_GRAPHBREAK(ch) GET_UCD(ch)->gbprop
2782 #define UCD_CASESET(ch) GET_UCD(ch)->caseset
2783 #define UCD_OTHERCASE(ch) ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
2784
2785 #endif /* SUPPORT_UCP */
2786
2787 #endif
2788
2789 /* End of pcre_internal.h */

Properties

Name Value
svn:eol-style native
svn:keywords "Author Date Id Revision Url"

  ViewVC Help
Powered by ViewVC 1.1.5