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Contents of /code/branches/pcre16/pcre_internal.h

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Revision 764 - (show annotations)
Wed Nov 23 17:23:20 2011 UTC (7 years, 9 months ago) by zherczeg
File MIME type: text/plain
File size: 87738 byte(s)
PRIV macro added, several new files added
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) 1997-2011 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_" or "_pcre16_" depending on
44 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 #ifndef COMPILE_PCRE16
57 #define COMPILE_PCRE8
58 #endif
59
60 /* We do not support both EBCDIC and UTF-8/16 at the same time. The "configure"
61 script prevents both being selected, but not everybody uses "configure". */
62
63 #if defined EBCDIC && (defined SUPPORT_UTF8 || defined SUPPORT_UTF16)
64 #error The use of both EBCDIC and SUPPORT_UTF8/16 is not supported.
65 #endif
66
67 /* If SUPPORT_UCP is defined, SUPPORT_UTF8 must also be defined. The
68 "configure" script ensures this, but not everybody uses "configure". */
69
70 #if defined SUPPORT_UCP && !defined SUPPORT_UTF8
71 #define SUPPORT_UTF8 1
72 #endif
73
74 /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
75 inline, and there are *still* stupid compilers about that don't like indented
76 pre-processor statements, or at least there were when I first wrote this. After
77 all, it had only been about 10 years then...
78
79 It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
80 be absolutely sure we get our version. */
81
82 #undef DPRINTF
83 #ifdef PCRE_DEBUG
84 #define DPRINTF(p) printf p
85 #else
86 #define DPRINTF(p) /* Nothing */
87 #endif
88
89
90 /* Standard C headers plus the external interface definition. The only time
91 setjmp and stdarg are used is when NO_RECURSE is set. */
92
93 #include <ctype.h>
94 #include <limits.h>
95 #include <stddef.h>
96 #include <stdio.h>
97 #include <stdlib.h>
98 #include <string.h>
99
100 /* When compiling a DLL for Windows, the exported symbols have to be declared
101 using some MS magic. I found some useful information on this web page:
102 http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
103 information there, using __declspec(dllexport) without "extern" we have a
104 definition; with "extern" we have a declaration. The settings here override the
105 setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
106 which is all that is needed for applications (they just import the symbols). We
107 use:
108
109 PCRE_EXP_DECL for declarations
110 PCRE_EXP_DEFN for definitions of exported functions
111 PCRE_EXP_DATA_DEFN for definitions of exported variables
112
113 The reason for the two DEFN macros is that in non-Windows environments, one
114 does not want to have "extern" before variable definitions because it leads to
115 compiler warnings. So we distinguish between functions and variables. In
116 Windows, the two should always be the same.
117
118 The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
119 which is an application, but needs to import this file in order to "peek" at
120 internals, can #include pcre.h first to get an application's-eye view.
121
122 In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
123 special-purpose environments) might want to stick other stuff in front of
124 exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
125 PCRE_EXP_DATA_DEFN only if they are not already set. */
126
127 #ifndef PCRE_EXP_DECL
128 # ifdef _WIN32
129 # ifndef PCRE_STATIC
130 # define PCRE_EXP_DECL extern __declspec(dllexport)
131 # define PCRE_EXP_DEFN __declspec(dllexport)
132 # define PCRE_EXP_DATA_DEFN __declspec(dllexport)
133 # else
134 # define PCRE_EXP_DECL extern
135 # define PCRE_EXP_DEFN
136 # define PCRE_EXP_DATA_DEFN
137 # endif
138 # else
139 # ifdef __cplusplus
140 # define PCRE_EXP_DECL extern "C"
141 # else
142 # define PCRE_EXP_DECL extern
143 # endif
144 # ifndef PCRE_EXP_DEFN
145 # define PCRE_EXP_DEFN PCRE_EXP_DECL
146 # endif
147 # ifndef PCRE_EXP_DATA_DEFN
148 # define PCRE_EXP_DATA_DEFN
149 # endif
150 # endif
151 #endif
152
153 /* When compiling with the MSVC compiler, it is sometimes necessary to include
154 a "calling convention" before exported function names. (This is secondhand
155 information; I know nothing about MSVC myself). For example, something like
156
157 void __cdecl function(....)
158
159 might be needed. In order so make this easy, all the exported functions have
160 PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
161 set, we ensure here that it has no effect. */
162
163 #ifndef PCRE_CALL_CONVENTION
164 #define PCRE_CALL_CONVENTION
165 #endif
166
167 /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
168 cannot determine these outside the compilation (e.g. by running a program as
169 part of "configure") because PCRE is often cross-compiled for use on other
170 systems. Instead we make use of the maximum sizes that are available at
171 preprocessor time in standard C environments. */
172
173 typedef unsigned char pcre_uint8;
174
175 #if USHRT_MAX == 65535
176 typedef unsigned short pcre_uint16;
177 typedef short pcre_int16;
178 #elif UINT_MAX == 65535
179 typedef unsigned int pcre_uint16;
180 typedef int pcre_int16;
181 #else
182 #error Cannot determine a type for 16-bit unsigned integers
183 #endif
184
185 #if UINT_MAX == 4294967295
186 typedef unsigned int pcre_uint32;
187 typedef int pcre_int32;
188 #elif ULONG_MAX == 4294967295
189 typedef unsigned long int pcre_uint32;
190 typedef long int pcre_int32;
191 #else
192 #error Cannot determine a type for 32-bit unsigned integers
193 #endif
194
195 /* When checking for integer overflow in pcre_compile(), we need to handle
196 large integers. If a 64-bit integer type is available, we can use that.
197 Otherwise we have to cast to double, which of course requires floating point
198 arithmetic. Handle this by defining a macro for the appropriate type. If
199 stdint.h is available, include it; it may define INT64_MAX. Systems that do not
200 have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
201 by "configure". */
202
203 #if HAVE_STDINT_H
204 #include <stdint.h>
205 #elif HAVE_INTTYPES_H
206 #include <inttypes.h>
207 #endif
208
209 #if defined INT64_MAX || defined int64_t
210 #define INT64_OR_DOUBLE int64_t
211 #else
212 #define INT64_OR_DOUBLE double
213 #endif
214
215 /* All character handling must be done as unsigned characters. Otherwise there
216 are problems with top-bit-set characters and functions such as isspace().
217 However, we leave the interface to the outside world as char * or short *,
218 because that should make things easier for callers. We define a short type
219 for the current character representation (either 8 or 16 bit) to save lots
220 of typing. I tried "uchar", but it causes problems on Digital Unix, where
221 it is defined in sys/types, so use "uschar" instead. */
222
223 #ifndef COMPILE_PCRE16
224 typedef unsigned char pcre_uchar;
225 #else
226 #if USHRT_MAX != 65535
227 /* This is a warning message. Change PCRE_SCHAR16 to a 16 bit data type in
228 pcre.h(.in) and disable (comment out) this message. */
229 #error Warning: PCRE_SCHAR16 is not a 16 bit data type.
230 #endif
231 typedef pcre_uint16 pcre_uchar;
232 #endif
233
234 /* This is an unsigned int value that no character can ever have. UTF-8
235 characters only go up to 0x7fffffff (though Unicode doesn't go beyond
236 0x0010ffff). */
237
238 #define NOTACHAR 0xffffffff
239
240 /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
241 "any" and "anycrlf" at present). The following macros are used to package up
242 testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
243 modules to indicate in which datablock the parameters exist, and what the
244 start/end of string field names are. */
245
246 #define NLTYPE_FIXED 0 /* Newline is a fixed length string */
247 #define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
248 #define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
249
250 /* This macro checks for a newline at the given position */
251
252 #define IS_NEWLINE(p) \
253 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
254 ((p) < NLBLOCK->PSEND && \
255 PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, &(NLBLOCK->nllen),\
256 utf8)) \
257 : \
258 ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
259 (p)[0] == NLBLOCK->nl[0] && \
260 (NLBLOCK->nllen == 1 || (p)[1] == NLBLOCK->nl[1]) \
261 ) \
262 )
263
264 /* This macro checks for a newline immediately preceding the given position */
265
266 #define WAS_NEWLINE(p) \
267 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
268 ((p) > NLBLOCK->PSSTART && \
269 PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
270 &(NLBLOCK->nllen), utf8)) \
271 : \
272 ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
273 (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
274 (NLBLOCK->nllen == 1 || (p)[-NLBLOCK->nllen+1] == NLBLOCK->nl[1]) \
275 ) \
276 )
277
278 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
279 with a custom type. This makes it possible, for example, to allow pcre_exec()
280 to process subject strings that are discontinuous by using a smart pointer
281 class. It must always be possible to inspect all of the subject string in
282 pcre_exec() because of the way it backtracks. Two macros are required in the
283 normal case, for sign-unspecified and unsigned char pointers. The former is
284 used for the external interface and appears in pcre.h, which is why its name
285 must begin with PCRE_. */
286
287 #ifdef CUSTOM_SUBJECT_PTR
288 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
289 #else
290 #define PCRE_PUCHAR const pcre_uchar *
291
292 /* PCRE_SPTR is defined in pcre.h. */
293 #define USPTR const uschar *
294 #endif
295
296 /* Include the public PCRE header and the definitions of UCP character property
297 values. */
298
299 #include "pcre.h"
300 #include "ucp.h"
301
302 /* When compiling for use with the Virtual Pascal compiler, these functions
303 need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
304 option on the command line. */
305
306 #ifdef VPCOMPAT
307 #define strlen(s) _strlen(s)
308 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
309 #define memcmp(s,c,n) _memcmp(s,c,n)
310 #define memcpy(d,s,n) _memcpy(d,s,n)
311 #define memmove(d,s,n) _memmove(d,s,n)
312 #define memset(s,c,n) _memset(s,c,n)
313 #else /* VPCOMPAT */
314
315 /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
316 define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
317 is set. Otherwise, include an emulating function for those systems that have
318 neither (there some non-Unix environments where this is the case). */
319
320 #ifndef HAVE_MEMMOVE
321 #undef memmove /* some systems may have a macro */
322 #ifdef HAVE_BCOPY
323 #define memmove(a, b, c) bcopy(b, a, c)
324 #else /* HAVE_BCOPY */
325 static void *
326 pcre_memmove(void *d, const void *s, size_t n)
327 {
328 size_t i;
329 unsigned char *dest = (unsigned char *)d;
330 const unsigned char *src = (const unsigned char *)s;
331 if (dest > src)
332 {
333 dest += n;
334 src += n;
335 for (i = 0; i < n; ++i) *(--dest) = *(--src);
336 return (void *)dest;
337 }
338 else
339 {
340 for (i = 0; i < n; ++i) *dest++ = *src++;
341 return (void *)(dest - n);
342 }
343 }
344 #define memmove(a, b, c) pcre_memmove(a, b, c)
345 #endif /* not HAVE_BCOPY */
346 #endif /* not HAVE_MEMMOVE */
347 #endif /* not VPCOMPAT */
348
349
350 /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
351 in big-endian order) by default. These are used, for example, to link from the
352 start of a subpattern to its alternatives and its end. The use of 2 bytes per
353 offset limits the size of the compiled regex to around 64K, which is big enough
354 for almost everybody. However, I received a request for an even bigger limit.
355 For this reason, and also to make the code easier to maintain, the storing and
356 loading of offsets from the byte string is now handled by the macros that are
357 defined here.
358
359 The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
360 the config.h file, but can be overridden by using -D on the command line. This
361 is automated on Unix systems via the "configure" command. */
362
363 #ifdef COMPILE_PCRE8
364
365 #if LINK_SIZE == 2
366
367 #define PUT(a,n,d) \
368 (a[n] = (d) >> 8), \
369 (a[(n)+1] = (d) & 255)
370
371 #define GET(a,n) \
372 (((a)[n] << 8) | (a)[(n)+1])
373
374 #define MAX_PATTERN_SIZE (1 << 16)
375
376
377 #elif LINK_SIZE == 3
378
379 #define PUT(a,n,d) \
380 (a[n] = (d) >> 16), \
381 (a[(n)+1] = (d) >> 8), \
382 (a[(n)+2] = (d) & 255)
383
384 #define GET(a,n) \
385 (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
386
387 #define MAX_PATTERN_SIZE (1 << 24)
388
389
390 #elif LINK_SIZE == 4
391
392 #define PUT(a,n,d) \
393 (a[n] = (d) >> 24), \
394 (a[(n)+1] = (d) >> 16), \
395 (a[(n)+2] = (d) >> 8), \
396 (a[(n)+3] = (d) & 255)
397
398 #define GET(a,n) \
399 (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
400
401 /* Keep it positive */
402 #define MAX_PATTERN_SIZE (1 << 30)
403
404 #else
405 #error LINK_SIZE must be either 2, 3, or 4
406 #endif
407
408 #else /* COMPILE_PCRE8 */
409
410 #ifdef COMPILE_PCRE16
411
412 #if LINK_SIZE == 2
413
414 #undef LINK_SIZE
415 #define LINK_SIZE 1
416
417 #define PUT(a,n,d) \
418 (a[n] = (d))
419
420 #define GET(a,n) \
421 (a[n])
422
423 #define MAX_PATTERN_SIZE (1 << 16)
424
425 #elif LINK_SIZE == 3 || LINK_SIZE == 4
426
427 #define PUT(a,n,d) \
428 (a[n] = (d) >> 16), \
429 (a[(n)+1] = (d) & 65536)
430
431 #define GET(a,n) \
432 (((a)[n] << 16) | (a)[(n)+1])
433
434 /* Keep it positive */
435 #define MAX_PATTERN_SIZE (1 << 30)
436
437 #else
438 #error LINK_SIZE must be either 2, 3, or 4
439 #endif
440
441 #else
442 #error Unsupported compiling mode
443 #endif /* COMPILE_PCRE16 */
444
445 #endif /* COMPILE_PCRE8 */
446
447 /* Convenience macro defined in terms of the others */
448
449 #define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
450
451
452 /* PCRE uses some other 2-byte quantities that do not change when the size of
453 offsets changes. There are used for repeat counts and for other things such as
454 capturing parenthesis numbers in back references. */
455
456 #ifdef COMPILE_PCRE8
457
458 #define IMM2_SIZE 2
459
460 #define PUT2(a,n,d) \
461 a[n] = (d) >> 8; \
462 a[(n)+1] = (d) & 255
463
464 #define GET2(a,n) \
465 (((a)[n] << 8) | (a)[(n)+1])
466
467 #else /* COMPILE_PCRE8 */
468
469 #ifdef COMPILE_PCRE16
470
471 #define IMM2_SIZE 1
472
473 #define PUT2(a,n,d) \
474 a[n] = d
475
476 #define GET2(a,n) \
477 a[n]
478
479 #else
480 #error Unsupported compiling mode
481 #endif /* COMPILE_PCRE16 */
482
483 #endif /* COMPILE_PCRE8 */
484
485 #define PUT2INC(a,n,d) PUT2(a,n,d), a += IMM2_SIZE
486
487 /* When UTF-8 encoding is being used, a character is no longer just a single
488 byte. The macros for character handling generate simple sequences when used in
489 byte-mode, and more complicated ones for UTF-8 characters. GETCHARLENTEST is
490 not used when UTF-8 is not supported, so it is not defined, and BACKCHAR should
491 never be called in byte mode. To make sure they can never even appear when
492 UTF-8 support is omitted, we don't even define them. */
493
494 #ifndef SUPPORT_UTF8
495 #define GETCHAR(c, eptr) c = *eptr;
496 #define GETCHARTEST(c, eptr) c = *eptr;
497 #define GETCHARINC(c, eptr) c = *eptr++;
498 #define GETCHARINCTEST(c, eptr) c = *eptr++;
499 #define GETCHARLEN(c, eptr, len) c = *eptr;
500 /* #define GETCHARLENTEST(c, eptr, len) */
501 /* #define BACKCHAR(eptr) */
502
503 #else /* SUPPORT_UTF8 */
504
505 /* These macros were originally written in the form of loops that used data
506 from the tables whose names start with PRIV(utf8_table). They were rewritten by
507 a user so as not to use loops, because in some environments this gives a
508 significant performance advantage, and it seems never to do any harm. */
509
510 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
511 advancing the pointer. */
512
513 #define GETUTF8(c, eptr) \
514 { \
515 if ((c & 0x20) == 0) \
516 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
517 else if ((c & 0x10) == 0) \
518 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
519 else if ((c & 0x08) == 0) \
520 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
521 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
522 else if ((c & 0x04) == 0) \
523 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
524 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
525 (eptr[4] & 0x3f); \
526 else \
527 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
528 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
529 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
530 }
531
532 /* Get the next UTF-8 character, not advancing the pointer. This is called when
533 we know we are in UTF-8 mode. */
534
535 #define GETCHAR(c, eptr) \
536 c = *eptr; \
537 if (c >= 0xc0) GETUTF8(c, eptr);
538
539 /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
540 pointer. */
541
542 #define GETCHARTEST(c, eptr) \
543 c = *eptr; \
544 if (utf8 && c >= 0xc0) GETUTF8(c, eptr);
545
546 /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
547 the pointer. */
548
549 #define GETUTF8INC(c, eptr) \
550 { \
551 if ((c & 0x20) == 0) \
552 c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
553 else if ((c & 0x10) == 0) \
554 { \
555 c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
556 eptr += 2; \
557 } \
558 else if ((c & 0x08) == 0) \
559 { \
560 c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
561 ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
562 eptr += 3; \
563 } \
564 else if ((c & 0x04) == 0) \
565 { \
566 c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
567 ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
568 (eptr[3] & 0x3f); \
569 eptr += 4; \
570 } \
571 else \
572 { \
573 c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
574 ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
575 ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
576 eptr += 5; \
577 } \
578 }
579
580 /* Get the next UTF-8 character, advancing the pointer. This is called when we
581 know we are in UTF-8 mode. */
582
583 #define GETCHARINC(c, eptr) \
584 c = *eptr++; \
585 if (c >= 0xc0) GETUTF8INC(c, eptr);
586
587 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
588 This is called when we don't know if we are in UTF-8 mode. */
589
590 #define GETCHARINCTEST(c, eptr) \
591 c = *eptr++; \
592 if (utf8 && c >= 0xc0) GETUTF8INC(c, eptr);
593
594 /* Base macro to pick up the remaining bytes of a UTF-8 character, not
595 advancing the pointer, incrementing the length. */
596
597 #define GETUTF8LEN(c, eptr, len) \
598 { \
599 if ((c & 0x20) == 0) \
600 { \
601 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
602 len++; \
603 } \
604 else if ((c & 0x10) == 0) \
605 { \
606 c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
607 len += 2; \
608 } \
609 else if ((c & 0x08) == 0) \
610 {\
611 c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
612 ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
613 len += 3; \
614 } \
615 else if ((c & 0x04) == 0) \
616 { \
617 c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
618 ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
619 (eptr[4] & 0x3f); \
620 len += 4; \
621 } \
622 else \
623 {\
624 c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
625 ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
626 ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
627 len += 5; \
628 } \
629 }
630
631 /* Get the next UTF-8 character, not advancing the pointer, incrementing length
632 if there are extra bytes. This is called when we know we are in UTF-8 mode. */
633
634 #define GETCHARLEN(c, eptr, len) \
635 c = *eptr; \
636 if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
637
638 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
639 pointer, incrementing length if there are extra bytes. This is called when we
640 do not know if we are in UTF-8 mode. */
641
642 #define GETCHARLENTEST(c, eptr, len) \
643 c = *eptr; \
644 if (utf8 && c >= 0xc0) GETUTF8LEN(c, eptr, len);
645
646 /* If the pointer is not at the start of a character, move it back until
647 it is. This is called only in UTF-8 mode - we don't put a test within the macro
648 because almost all calls are already within a block of UTF-8 only code. */
649
650 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
651
652 #endif /* SUPPORT_UTF8 */
653
654
655 /* In case there is no definition of offsetof() provided - though any proper
656 Standard C system should have one. */
657
658 #ifndef offsetof
659 #define offsetof(p_type,field) ((size_t)&(((p_type *)0)->field))
660 #endif
661
662
663 /* Private flags containing information about the compiled regex. They used to
664 live at the top end of the options word, but that got almost full, so now they
665 are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
666 the restrictions on partial matching have been lifted. It remains for backwards
667 compatibility. */
668
669 #define PCRE_NOPARTIAL 0x0001 /* can't use partial with this regex */
670 #define PCRE_FIRSTSET 0x0002 /* first_byte is set */
671 #define PCRE_REQCHSET 0x0004 /* req_byte is set */
672 #define PCRE_STARTLINE 0x0008 /* start after \n for multiline */
673 #define PCRE_JCHANGED 0x0010 /* j option used in regex */
674 #define PCRE_HASCRORLF 0x0020 /* explicit \r or \n in pattern */
675 #define PCRE_HASTHEN 0x0040 /* pattern contains (*THEN) */
676
677 /* Flags for the "extra" block produced by pcre_study(). */
678
679 #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
680 #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
681
682 /* Masks for identifying the public options that are permitted at compile
683 time, run time, or study time, respectively. */
684
685 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
686 PCRE_NEWLINE_ANYCRLF)
687
688 #define PUBLIC_COMPILE_OPTIONS \
689 (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
690 PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
691 PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
692 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
693 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
694
695 #define PUBLIC_EXEC_OPTIONS \
696 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
697 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
698 PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
699
700 #define PUBLIC_DFA_EXEC_OPTIONS \
701 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
702 PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
703 PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
704 PCRE_NO_START_OPTIMIZE)
705
706 #define PUBLIC_STUDY_OPTIONS \
707 PCRE_STUDY_JIT_COMPILE
708
709 /* Magic number to provide a small check against being handed junk. Also used
710 to detect whether a pattern was compiled on a host of different endianness. */
711
712 #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
713
714 /* Negative values for the firstchar and reqchar variables */
715
716 #define REQ_UNSET (-2)
717 #define REQ_NONE (-1)
718
719 /* The maximum remaining length of subject we are prepared to search for a
720 req_byte match. */
721
722 #define REQ_BYTE_MAX 1000
723
724 /* Flags added to firstbyte or reqbyte; a "non-literal" item is either a
725 variable-length repeat, or a anything other than literal characters. */
726
727 #define REQ_CASELESS 0x0100 /* indicates caselessness */
728 #define REQ_VARY 0x0200 /* reqbyte followed non-literal item */
729
730 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
731 environments where these macros are defined elsewhere. Unfortunately, there
732 is no way to do the same for the typedef. */
733
734 typedef int BOOL;
735
736 #ifndef FALSE
737 #define FALSE 0
738 #define TRUE 1
739 #endif
740
741 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
742 character constants like '*' because the compiler would emit their EBCDIC code,
743 which is different from their ASCII/UTF-8 code. Instead we define macros for
744 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
745 is enabled. When UTF-8 support is not enabled, the definitions use character
746 literals. Both character and string versions of each character are needed, and
747 there are some longer strings as well.
748
749 This means that, on EBCDIC platforms, the PCRE library can handle either
750 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
751 would need different lookups depending on whether PCRE_UTF8 was set or not.
752 This would make it impossible to use characters in switch/case statements,
753 which would reduce performance. For a theoretical use (which nobody has asked
754 for) in a minority area (EBCDIC platforms), this is not sensible. Any
755 application that did need both could compile two versions of the library, using
756 macros to give the functions distinct names. */
757
758 #ifndef SUPPORT_UTF8
759
760 /* UTF-8 support is not enabled; use the platform-dependent character literals
761 so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */
762
763 #define CHAR_HT '\t'
764 #define CHAR_VT '\v'
765 #define CHAR_FF '\f'
766 #define CHAR_CR '\r'
767 #define CHAR_NL '\n'
768 #define CHAR_BS '\b'
769 #define CHAR_BEL '\a'
770 #ifdef EBCDIC
771 #define CHAR_ESC '\047'
772 #define CHAR_DEL '\007'
773 #else
774 #define CHAR_ESC '\033'
775 #define CHAR_DEL '\177'
776 #endif
777
778 #define CHAR_SPACE ' '
779 #define CHAR_EXCLAMATION_MARK '!'
780 #define CHAR_QUOTATION_MARK '"'
781 #define CHAR_NUMBER_SIGN '#'
782 #define CHAR_DOLLAR_SIGN '$'
783 #define CHAR_PERCENT_SIGN '%'
784 #define CHAR_AMPERSAND '&'
785 #define CHAR_APOSTROPHE '\''
786 #define CHAR_LEFT_PARENTHESIS '('
787 #define CHAR_RIGHT_PARENTHESIS ')'
788 #define CHAR_ASTERISK '*'
789 #define CHAR_PLUS '+'
790 #define CHAR_COMMA ','
791 #define CHAR_MINUS '-'
792 #define CHAR_DOT '.'
793 #define CHAR_SLASH '/'
794 #define CHAR_0 '0'
795 #define CHAR_1 '1'
796 #define CHAR_2 '2'
797 #define CHAR_3 '3'
798 #define CHAR_4 '4'
799 #define CHAR_5 '5'
800 #define CHAR_6 '6'
801 #define CHAR_7 '7'
802 #define CHAR_8 '8'
803 #define CHAR_9 '9'
804 #define CHAR_COLON ':'
805 #define CHAR_SEMICOLON ';'
806 #define CHAR_LESS_THAN_SIGN '<'
807 #define CHAR_EQUALS_SIGN '='
808 #define CHAR_GREATER_THAN_SIGN '>'
809 #define CHAR_QUESTION_MARK '?'
810 #define CHAR_COMMERCIAL_AT '@'
811 #define CHAR_A 'A'
812 #define CHAR_B 'B'
813 #define CHAR_C 'C'
814 #define CHAR_D 'D'
815 #define CHAR_E 'E'
816 #define CHAR_F 'F'
817 #define CHAR_G 'G'
818 #define CHAR_H 'H'
819 #define CHAR_I 'I'
820 #define CHAR_J 'J'
821 #define CHAR_K 'K'
822 #define CHAR_L 'L'
823 #define CHAR_M 'M'
824 #define CHAR_N 'N'
825 #define CHAR_O 'O'
826 #define CHAR_P 'P'
827 #define CHAR_Q 'Q'
828 #define CHAR_R 'R'
829 #define CHAR_S 'S'
830 #define CHAR_T 'T'
831 #define CHAR_U 'U'
832 #define CHAR_V 'V'
833 #define CHAR_W 'W'
834 #define CHAR_X 'X'
835 #define CHAR_Y 'Y'
836 #define CHAR_Z 'Z'
837 #define CHAR_LEFT_SQUARE_BRACKET '['
838 #define CHAR_BACKSLASH '\\'
839 #define CHAR_RIGHT_SQUARE_BRACKET ']'
840 #define CHAR_CIRCUMFLEX_ACCENT '^'
841 #define CHAR_UNDERSCORE '_'
842 #define CHAR_GRAVE_ACCENT '`'
843 #define CHAR_a 'a'
844 #define CHAR_b 'b'
845 #define CHAR_c 'c'
846 #define CHAR_d 'd'
847 #define CHAR_e 'e'
848 #define CHAR_f 'f'
849 #define CHAR_g 'g'
850 #define CHAR_h 'h'
851 #define CHAR_i 'i'
852 #define CHAR_j 'j'
853 #define CHAR_k 'k'
854 #define CHAR_l 'l'
855 #define CHAR_m 'm'
856 #define CHAR_n 'n'
857 #define CHAR_o 'o'
858 #define CHAR_p 'p'
859 #define CHAR_q 'q'
860 #define CHAR_r 'r'
861 #define CHAR_s 's'
862 #define CHAR_t 't'
863 #define CHAR_u 'u'
864 #define CHAR_v 'v'
865 #define CHAR_w 'w'
866 #define CHAR_x 'x'
867 #define CHAR_y 'y'
868 #define CHAR_z 'z'
869 #define CHAR_LEFT_CURLY_BRACKET '{'
870 #define CHAR_VERTICAL_LINE '|'
871 #define CHAR_RIGHT_CURLY_BRACKET '}'
872 #define CHAR_TILDE '~'
873
874 #define STR_HT "\t"
875 #define STR_VT "\v"
876 #define STR_FF "\f"
877 #define STR_CR "\r"
878 #define STR_NL "\n"
879 #define STR_BS "\b"
880 #define STR_BEL "\a"
881 #ifdef EBCDIC
882 #define STR_ESC "\047"
883 #define STR_DEL "\007"
884 #else
885 #define STR_ESC "\033"
886 #define STR_DEL "\177"
887 #endif
888
889 #define STR_SPACE " "
890 #define STR_EXCLAMATION_MARK "!"
891 #define STR_QUOTATION_MARK "\""
892 #define STR_NUMBER_SIGN "#"
893 #define STR_DOLLAR_SIGN "$"
894 #define STR_PERCENT_SIGN "%"
895 #define STR_AMPERSAND "&"
896 #define STR_APOSTROPHE "'"
897 #define STR_LEFT_PARENTHESIS "("
898 #define STR_RIGHT_PARENTHESIS ")"
899 #define STR_ASTERISK "*"
900 #define STR_PLUS "+"
901 #define STR_COMMA ","
902 #define STR_MINUS "-"
903 #define STR_DOT "."
904 #define STR_SLASH "/"
905 #define STR_0 "0"
906 #define STR_1 "1"
907 #define STR_2 "2"
908 #define STR_3 "3"
909 #define STR_4 "4"
910 #define STR_5 "5"
911 #define STR_6 "6"
912 #define STR_7 "7"
913 #define STR_8 "8"
914 #define STR_9 "9"
915 #define STR_COLON ":"
916 #define STR_SEMICOLON ";"
917 #define STR_LESS_THAN_SIGN "<"
918 #define STR_EQUALS_SIGN "="
919 #define STR_GREATER_THAN_SIGN ">"
920 #define STR_QUESTION_MARK "?"
921 #define STR_COMMERCIAL_AT "@"
922 #define STR_A "A"
923 #define STR_B "B"
924 #define STR_C "C"
925 #define STR_D "D"
926 #define STR_E "E"
927 #define STR_F "F"
928 #define STR_G "G"
929 #define STR_H "H"
930 #define STR_I "I"
931 #define STR_J "J"
932 #define STR_K "K"
933 #define STR_L "L"
934 #define STR_M "M"
935 #define STR_N "N"
936 #define STR_O "O"
937 #define STR_P "P"
938 #define STR_Q "Q"
939 #define STR_R "R"
940 #define STR_S "S"
941 #define STR_T "T"
942 #define STR_U "U"
943 #define STR_V "V"
944 #define STR_W "W"
945 #define STR_X "X"
946 #define STR_Y "Y"
947 #define STR_Z "Z"
948 #define STR_LEFT_SQUARE_BRACKET "["
949 #define STR_BACKSLASH "\\"
950 #define STR_RIGHT_SQUARE_BRACKET "]"
951 #define STR_CIRCUMFLEX_ACCENT "^"
952 #define STR_UNDERSCORE "_"
953 #define STR_GRAVE_ACCENT "`"
954 #define STR_a "a"
955 #define STR_b "b"
956 #define STR_c "c"
957 #define STR_d "d"
958 #define STR_e "e"
959 #define STR_f "f"
960 #define STR_g "g"
961 #define STR_h "h"
962 #define STR_i "i"
963 #define STR_j "j"
964 #define STR_k "k"
965 #define STR_l "l"
966 #define STR_m "m"
967 #define STR_n "n"
968 #define STR_o "o"
969 #define STR_p "p"
970 #define STR_q "q"
971 #define STR_r "r"
972 #define STR_s "s"
973 #define STR_t "t"
974 #define STR_u "u"
975 #define STR_v "v"
976 #define STR_w "w"
977 #define STR_x "x"
978 #define STR_y "y"
979 #define STR_z "z"
980 #define STR_LEFT_CURLY_BRACKET "{"
981 #define STR_VERTICAL_LINE "|"
982 #define STR_RIGHT_CURLY_BRACKET "}"
983 #define STR_TILDE "~"
984
985 #define STRING_ACCEPT0 "ACCEPT\0"
986 #define STRING_COMMIT0 "COMMIT\0"
987 #define STRING_F0 "F\0"
988 #define STRING_FAIL0 "FAIL\0"
989 #define STRING_MARK0 "MARK\0"
990 #define STRING_PRUNE0 "PRUNE\0"
991 #define STRING_SKIP0 "SKIP\0"
992 #define STRING_THEN "THEN"
993
994 #define STRING_alpha0 "alpha\0"
995 #define STRING_lower0 "lower\0"
996 #define STRING_upper0 "upper\0"
997 #define STRING_alnum0 "alnum\0"
998 #define STRING_ascii0 "ascii\0"
999 #define STRING_blank0 "blank\0"
1000 #define STRING_cntrl0 "cntrl\0"
1001 #define STRING_digit0 "digit\0"
1002 #define STRING_graph0 "graph\0"
1003 #define STRING_print0 "print\0"
1004 #define STRING_punct0 "punct\0"
1005 #define STRING_space0 "space\0"
1006 #define STRING_word0 "word\0"
1007 #define STRING_xdigit "xdigit"
1008
1009 #define STRING_DEFINE "DEFINE"
1010
1011 #define STRING_CR_RIGHTPAR "CR)"
1012 #define STRING_LF_RIGHTPAR "LF)"
1013 #define STRING_CRLF_RIGHTPAR "CRLF)"
1014 #define STRING_ANY_RIGHTPAR "ANY)"
1015 #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1016 #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1017 #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1018 #define STRING_UTF8_RIGHTPAR "UTF8)"
1019 #define STRING_UCP_RIGHTPAR "UCP)"
1020 #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1021
1022 #else /* SUPPORT_UTF8 */
1023
1024 /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1025 works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1026 only. */
1027
1028 #define CHAR_HT '\011'
1029 #define CHAR_VT '\013'
1030 #define CHAR_FF '\014'
1031 #define CHAR_CR '\015'
1032 #define CHAR_NL '\012'
1033 #define CHAR_BS '\010'
1034 #define CHAR_BEL '\007'
1035 #define CHAR_ESC '\033'
1036 #define CHAR_DEL '\177'
1037
1038 #define CHAR_SPACE '\040'
1039 #define CHAR_EXCLAMATION_MARK '\041'
1040 #define CHAR_QUOTATION_MARK '\042'
1041 #define CHAR_NUMBER_SIGN '\043'
1042 #define CHAR_DOLLAR_SIGN '\044'
1043 #define CHAR_PERCENT_SIGN '\045'
1044 #define CHAR_AMPERSAND '\046'
1045 #define CHAR_APOSTROPHE '\047'
1046 #define CHAR_LEFT_PARENTHESIS '\050'
1047 #define CHAR_RIGHT_PARENTHESIS '\051'
1048 #define CHAR_ASTERISK '\052'
1049 #define CHAR_PLUS '\053'
1050 #define CHAR_COMMA '\054'
1051 #define CHAR_MINUS '\055'
1052 #define CHAR_DOT '\056'
1053 #define CHAR_SLASH '\057'
1054 #define CHAR_0 '\060'
1055 #define CHAR_1 '\061'
1056 #define CHAR_2 '\062'
1057 #define CHAR_3 '\063'
1058 #define CHAR_4 '\064'
1059 #define CHAR_5 '\065'
1060 #define CHAR_6 '\066'
1061 #define CHAR_7 '\067'
1062 #define CHAR_8 '\070'
1063 #define CHAR_9 '\071'
1064 #define CHAR_COLON '\072'
1065 #define CHAR_SEMICOLON '\073'
1066 #define CHAR_LESS_THAN_SIGN '\074'
1067 #define CHAR_EQUALS_SIGN '\075'
1068 #define CHAR_GREATER_THAN_SIGN '\076'
1069 #define CHAR_QUESTION_MARK '\077'
1070 #define CHAR_COMMERCIAL_AT '\100'
1071 #define CHAR_A '\101'
1072 #define CHAR_B '\102'
1073 #define CHAR_C '\103'
1074 #define CHAR_D '\104'
1075 #define CHAR_E '\105'
1076 #define CHAR_F '\106'
1077 #define CHAR_G '\107'
1078 #define CHAR_H '\110'
1079 #define CHAR_I '\111'
1080 #define CHAR_J '\112'
1081 #define CHAR_K '\113'
1082 #define CHAR_L '\114'
1083 #define CHAR_M '\115'
1084 #define CHAR_N '\116'
1085 #define CHAR_O '\117'
1086 #define CHAR_P '\120'
1087 #define CHAR_Q '\121'
1088 #define CHAR_R '\122'
1089 #define CHAR_S '\123'
1090 #define CHAR_T '\124'
1091 #define CHAR_U '\125'
1092 #define CHAR_V '\126'
1093 #define CHAR_W '\127'
1094 #define CHAR_X '\130'
1095 #define CHAR_Y '\131'
1096 #define CHAR_Z '\132'
1097 #define CHAR_LEFT_SQUARE_BRACKET '\133'
1098 #define CHAR_BACKSLASH '\134'
1099 #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1100 #define CHAR_CIRCUMFLEX_ACCENT '\136'
1101 #define CHAR_UNDERSCORE '\137'
1102 #define CHAR_GRAVE_ACCENT '\140'
1103 #define CHAR_a '\141'
1104 #define CHAR_b '\142'
1105 #define CHAR_c '\143'
1106 #define CHAR_d '\144'
1107 #define CHAR_e '\145'
1108 #define CHAR_f '\146'
1109 #define CHAR_g '\147'
1110 #define CHAR_h '\150'
1111 #define CHAR_i '\151'
1112 #define CHAR_j '\152'
1113 #define CHAR_k '\153'
1114 #define CHAR_l '\154'
1115 #define CHAR_m '\155'
1116 #define CHAR_n '\156'
1117 #define CHAR_o '\157'
1118 #define CHAR_p '\160'
1119 #define CHAR_q '\161'
1120 #define CHAR_r '\162'
1121 #define CHAR_s '\163'
1122 #define CHAR_t '\164'
1123 #define CHAR_u '\165'
1124 #define CHAR_v '\166'
1125 #define CHAR_w '\167'
1126 #define CHAR_x '\170'
1127 #define CHAR_y '\171'
1128 #define CHAR_z '\172'
1129 #define CHAR_LEFT_CURLY_BRACKET '\173'
1130 #define CHAR_VERTICAL_LINE '\174'
1131 #define CHAR_RIGHT_CURLY_BRACKET '\175'
1132 #define CHAR_TILDE '\176'
1133
1134 #define STR_HT "\011"
1135 #define STR_VT "\013"
1136 #define STR_FF "\014"
1137 #define STR_CR "\015"
1138 #define STR_NL "\012"
1139 #define STR_BS "\010"
1140 #define STR_BEL "\007"
1141 #define STR_ESC "\033"
1142 #define STR_DEL "\177"
1143
1144 #define STR_SPACE "\040"
1145 #define STR_EXCLAMATION_MARK "\041"
1146 #define STR_QUOTATION_MARK "\042"
1147 #define STR_NUMBER_SIGN "\043"
1148 #define STR_DOLLAR_SIGN "\044"
1149 #define STR_PERCENT_SIGN "\045"
1150 #define STR_AMPERSAND "\046"
1151 #define STR_APOSTROPHE "\047"
1152 #define STR_LEFT_PARENTHESIS "\050"
1153 #define STR_RIGHT_PARENTHESIS "\051"
1154 #define STR_ASTERISK "\052"
1155 #define STR_PLUS "\053"
1156 #define STR_COMMA "\054"
1157 #define STR_MINUS "\055"
1158 #define STR_DOT "\056"
1159 #define STR_SLASH "\057"
1160 #define STR_0 "\060"
1161 #define STR_1 "\061"
1162 #define STR_2 "\062"
1163 #define STR_3 "\063"
1164 #define STR_4 "\064"
1165 #define STR_5 "\065"
1166 #define STR_6 "\066"
1167 #define STR_7 "\067"
1168 #define STR_8 "\070"
1169 #define STR_9 "\071"
1170 #define STR_COLON "\072"
1171 #define STR_SEMICOLON "\073"
1172 #define STR_LESS_THAN_SIGN "\074"
1173 #define STR_EQUALS_SIGN "\075"
1174 #define STR_GREATER_THAN_SIGN "\076"
1175 #define STR_QUESTION_MARK "\077"
1176 #define STR_COMMERCIAL_AT "\100"
1177 #define STR_A "\101"
1178 #define STR_B "\102"
1179 #define STR_C "\103"
1180 #define STR_D "\104"
1181 #define STR_E "\105"
1182 #define STR_F "\106"
1183 #define STR_G "\107"
1184 #define STR_H "\110"
1185 #define STR_I "\111"
1186 #define STR_J "\112"
1187 #define STR_K "\113"
1188 #define STR_L "\114"
1189 #define STR_M "\115"
1190 #define STR_N "\116"
1191 #define STR_O "\117"
1192 #define STR_P "\120"
1193 #define STR_Q "\121"
1194 #define STR_R "\122"
1195 #define STR_S "\123"
1196 #define STR_T "\124"
1197 #define STR_U "\125"
1198 #define STR_V "\126"
1199 #define STR_W "\127"
1200 #define STR_X "\130"
1201 #define STR_Y "\131"
1202 #define STR_Z "\132"
1203 #define STR_LEFT_SQUARE_BRACKET "\133"
1204 #define STR_BACKSLASH "\134"
1205 #define STR_RIGHT_SQUARE_BRACKET "\135"
1206 #define STR_CIRCUMFLEX_ACCENT "\136"
1207 #define STR_UNDERSCORE "\137"
1208 #define STR_GRAVE_ACCENT "\140"
1209 #define STR_a "\141"
1210 #define STR_b "\142"
1211 #define STR_c "\143"
1212 #define STR_d "\144"
1213 #define STR_e "\145"
1214 #define STR_f "\146"
1215 #define STR_g "\147"
1216 #define STR_h "\150"
1217 #define STR_i "\151"
1218 #define STR_j "\152"
1219 #define STR_k "\153"
1220 #define STR_l "\154"
1221 #define STR_m "\155"
1222 #define STR_n "\156"
1223 #define STR_o "\157"
1224 #define STR_p "\160"
1225 #define STR_q "\161"
1226 #define STR_r "\162"
1227 #define STR_s "\163"
1228 #define STR_t "\164"
1229 #define STR_u "\165"
1230 #define STR_v "\166"
1231 #define STR_w "\167"
1232 #define STR_x "\170"
1233 #define STR_y "\171"
1234 #define STR_z "\172"
1235 #define STR_LEFT_CURLY_BRACKET "\173"
1236 #define STR_VERTICAL_LINE "\174"
1237 #define STR_RIGHT_CURLY_BRACKET "\175"
1238 #define STR_TILDE "\176"
1239
1240 #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1241 #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1242 #define STRING_F0 STR_F "\0"
1243 #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1244 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1245 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1246 #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1247 #define STRING_THEN STR_T STR_H STR_E STR_N
1248
1249 #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1250 #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1251 #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1252 #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1253 #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1254 #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1255 #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1256 #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1257 #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1258 #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1259 #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1260 #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1261 #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1262 #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1263
1264 #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1265
1266 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1267 #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1268 #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1269 #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1270 #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1271 #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
1272 #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
1273 #define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1274 #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1275 #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
1276
1277 #endif /* SUPPORT_UTF8 */
1278
1279 /* Escape items that are just an encoding of a particular data value. */
1280
1281 #ifndef ESC_e
1282 #define ESC_e CHAR_ESC
1283 #endif
1284
1285 #ifndef ESC_f
1286 #define ESC_f CHAR_FF
1287 #endif
1288
1289 #ifndef ESC_n
1290 #define ESC_n CHAR_NL
1291 #endif
1292
1293 #ifndef ESC_r
1294 #define ESC_r CHAR_CR
1295 #endif
1296
1297 /* We can't officially use ESC_t because it is a POSIX reserved identifier
1298 (presumably because of all the others like size_t). */
1299
1300 #ifndef ESC_tee
1301 #define ESC_tee CHAR_HT
1302 #endif
1303
1304 /* Codes for different types of Unicode property */
1305
1306 #define PT_ANY 0 /* Any property - matches all chars */
1307 #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1308 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1309 #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1310 #define PT_SC 4 /* Script (e.g. Han) */
1311 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1312 #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1313 #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1314 #define PT_WORD 8 /* Word - L plus N plus underscore */
1315
1316 /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1317 contain UTF-8 characters with values greater than 255. */
1318
1319 #define XCL_NOT 0x01 /* Flag: this is a negative class */
1320 #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1321
1322 #define XCL_END 0 /* Marks end of individual items */
1323 #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1324 #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1325 #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1326 #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1327
1328 /* These are escaped items that aren't just an encoding of a particular data
1329 value such as \n. They must have non-zero values, as check_escape() returns
1330 their negation. Also, they must appear in the same order as in the opcode
1331 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1332 corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1333 used for [^] in JavaScript compatibility mode, and for \C in non-utf8 mode. In
1334 non-DOTALL mode, "." behaves like \N.
1335
1336 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1337 when PCRE_UCP is set, when replacement of \d etc by \p sequences is required.
1338 They must be contiguous, and remain in order so that the replacements can be
1339 looked up from a table.
1340
1341 The final escape must be ESC_REF as subsequent values are used for
1342 backreferences (\1, \2, \3, etc). There are two tests in the code for an escape
1343 greater than ESC_b and less than ESC_Z to detect the types that may be
1344 repeated. These are the types that consume characters. If any new escapes are
1345 put in between that don't consume a character, that code will have to change.
1346 */
1347
1348 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1349 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1350 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1351 ESC_E, ESC_Q, ESC_g, ESC_k,
1352 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu,
1353 ESC_REF };
1354
1355 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1356 OP_EOD must correspond in order to the list of escapes immediately above.
1357
1358 *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1359 that follow must also be updated to match. There are also tables called
1360 "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1361
1362 enum {
1363 OP_END, /* 0 End of pattern */
1364
1365 /* Values corresponding to backslashed metacharacters */
1366
1367 OP_SOD, /* 1 Start of data: \A */
1368 OP_SOM, /* 2 Start of match (subject + offset): \G */
1369 OP_SET_SOM, /* 3 Set start of match (\K) */
1370 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1371 OP_WORD_BOUNDARY, /* 5 \b */
1372 OP_NOT_DIGIT, /* 6 \D */
1373 OP_DIGIT, /* 7 \d */
1374 OP_NOT_WHITESPACE, /* 8 \S */
1375 OP_WHITESPACE, /* 9 \s */
1376 OP_NOT_WORDCHAR, /* 10 \W */
1377 OP_WORDCHAR, /* 11 \w */
1378
1379 OP_ANY, /* 12 Match any character except newline */
1380 OP_ALLANY, /* 13 Match any character */
1381 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1382 OP_NOTPROP, /* 15 \P (not Unicode property) */
1383 OP_PROP, /* 16 \p (Unicode property) */
1384 OP_ANYNL, /* 17 \R (any newline sequence) */
1385 OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1386 OP_HSPACE, /* 19 \h (horizontal whitespace) */
1387 OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1388 OP_VSPACE, /* 21 \v (vertical whitespace) */
1389 OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1390 OP_EODN, /* 23 End of data or \n at end of data: \Z. */
1391 OP_EOD, /* 24 End of data: \z */
1392
1393 OP_CIRC, /* 25 Start of line - not multiline */
1394 OP_CIRCM, /* 26 Start of line - multiline */
1395 OP_DOLL, /* 27 End of line - not multiline */
1396 OP_DOLLM, /* 28 End of line - multiline */
1397 OP_CHAR, /* 29 Match one character, casefully */
1398 OP_CHARI, /* 30 Match one character, caselessly */
1399 OP_NOT, /* 31 Match one character, not the given one, casefully */
1400 OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1401
1402 /* The following sets of 13 opcodes must always be kept in step because
1403 the offset from the first one is used to generate the others. */
1404
1405 /**** Single characters, caseful, must precede the caseless ones ****/
1406
1407 OP_STAR, /* 33 The maximizing and minimizing versions of */
1408 OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1409 OP_PLUS, /* 35 the minimizing one second. */
1410 OP_MINPLUS, /* 36 */
1411 OP_QUERY, /* 37 */
1412 OP_MINQUERY, /* 38 */
1413
1414 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1415 OP_MINUPTO, /* 40 */
1416 OP_EXACT, /* 41 Exactly n matches */
1417
1418 OP_POSSTAR, /* 42 Possessified star, caseful */
1419 OP_POSPLUS, /* 43 Possessified plus, caseful */
1420 OP_POSQUERY, /* 44 Posesssified query, caseful */
1421 OP_POSUPTO, /* 45 Possessified upto, caseful */
1422
1423 /**** Single characters, caseless, must follow the caseful ones */
1424
1425 OP_STARI, /* 46 */
1426 OP_MINSTARI, /* 47 */
1427 OP_PLUSI, /* 48 */
1428 OP_MINPLUSI, /* 49 */
1429 OP_QUERYI, /* 50 */
1430 OP_MINQUERYI, /* 51 */
1431
1432 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1433 OP_MINUPTOI, /* 53 */
1434 OP_EXACTI, /* 54 */
1435
1436 OP_POSSTARI, /* 55 Possessified star, caseless */
1437 OP_POSPLUSI, /* 56 Possessified plus, caseless */
1438 OP_POSQUERYI, /* 57 Posesssified query, caseless */
1439 OP_POSUPTOI, /* 58 Possessified upto, caseless */
1440
1441 /**** The negated ones must follow the non-negated ones, and match them ****/
1442 /**** Negated single character, caseful; must precede the caseless ones ****/
1443
1444 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
1445 OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
1446 OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
1447 OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
1448 OP_NOTQUERY, /* 63 */
1449 OP_NOTMINQUERY, /* 64 */
1450
1451 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
1452 OP_NOTMINUPTO, /* 66 */
1453 OP_NOTEXACT, /* 67 Exactly n matches */
1454
1455 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
1456 OP_NOTPOSPLUS, /* 69 */
1457 OP_NOTPOSQUERY, /* 70 */
1458 OP_NOTPOSUPTO, /* 71 */
1459
1460 /**** Negated single character, caseless; must follow the caseful ones ****/
1461
1462 OP_NOTSTARI, /* 72 */
1463 OP_NOTMINSTARI, /* 73 */
1464 OP_NOTPLUSI, /* 74 */
1465 OP_NOTMINPLUSI, /* 75 */
1466 OP_NOTQUERYI, /* 76 */
1467 OP_NOTMINQUERYI, /* 77 */
1468
1469 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
1470 OP_NOTMINUPTOI, /* 79 */
1471 OP_NOTEXACTI, /* 80 Exactly n matches */
1472
1473 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
1474 OP_NOTPOSPLUSI, /* 82 */
1475 OP_NOTPOSQUERYI, /* 83 */
1476 OP_NOTPOSUPTOI, /* 84 */
1477
1478 /**** Character types ****/
1479
1480 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
1481 OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
1482 OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
1483 OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
1484 OP_TYPEQUERY, /* 89 */
1485 OP_TYPEMINQUERY, /* 90 */
1486
1487 OP_TYPEUPTO, /* 91 From 0 to n matches */
1488 OP_TYPEMINUPTO, /* 92 */
1489 OP_TYPEEXACT, /* 93 Exactly n matches */
1490
1491 OP_TYPEPOSSTAR, /* 94 Possessified versions */
1492 OP_TYPEPOSPLUS, /* 95 */
1493 OP_TYPEPOSQUERY, /* 96 */
1494 OP_TYPEPOSUPTO, /* 97 */
1495
1496 /* These are used for character classes and back references; only the
1497 first six are the same as the sets above. */
1498
1499 OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
1500 OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
1501 OP_CRPLUS, /* 100 the minimizing one second. These codes must */
1502 OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
1503 OP_CRQUERY, /* 102 */
1504 OP_CRMINQUERY, /* 103 */
1505
1506 OP_CRRANGE, /* 104 These are different to the three sets above. */
1507 OP_CRMINRANGE, /* 105 */
1508
1509 /* End of quantifier opcodes */
1510
1511 OP_CLASS, /* 106 Match a character class, chars < 256 only */
1512 OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
1513 class - the difference is relevant only when a
1514 UTF-8 character > 255 is encountered. */
1515 OP_XCLASS, /* 108 Extended class for handling UTF-8 chars within the
1516 class. This does both positive and negative. */
1517 OP_REF, /* 109 Match a back reference, casefully */
1518 OP_REFI, /* 110 Match a back reference, caselessly */
1519 OP_RECURSE, /* 111 Match a numbered subpattern (possibly recursive) */
1520 OP_CALLOUT, /* 112 Call out to external function if provided */
1521
1522 OP_ALT, /* 113 Start of alternation */
1523 OP_KET, /* 114 End of group that doesn't have an unbounded repeat */
1524 OP_KETRMAX, /* 115 These two must remain together and in this */
1525 OP_KETRMIN, /* 116 order. They are for groups the repeat for ever. */
1526 OP_KETRPOS, /* 117 Possessive unlimited repeat. */
1527
1528 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
1529 asserts must remain in order. */
1530
1531 OP_REVERSE, /* 118 Move pointer back - used in lookbehind assertions */
1532 OP_ASSERT, /* 119 Positive lookahead */
1533 OP_ASSERT_NOT, /* 120 Negative lookahead */
1534 OP_ASSERTBACK, /* 121 Positive lookbehind */
1535 OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
1536
1537 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
1538 after the assertions, with ONCE first, as there's a test for >= ONCE for a
1539 subpattern that isn't an assertion. The POS versions must immediately follow
1540 the non-POS versions in each case. */
1541
1542 OP_ONCE, /* 123 Atomic group, contains captures */
1543 OP_ONCE_NC, /* 124 Atomic group containing no captures */
1544 OP_BRA, /* 125 Start of non-capturing bracket */
1545 OP_BRAPOS, /* 126 Ditto, with unlimited, possessive repeat */
1546 OP_CBRA, /* 127 Start of capturing bracket */
1547 OP_CBRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
1548 OP_COND, /* 129 Conditional group */
1549
1550 /* These five must follow the previous five, in the same order. There's a
1551 check for >= SBRA to distinguish the two sets. */
1552
1553 OP_SBRA, /* 130 Start of non-capturing bracket, check empty */
1554 OP_SBRAPOS, /* 131 Ditto, with unlimited, possessive repeat */
1555 OP_SCBRA, /* 132 Start of capturing bracket, check empty */
1556 OP_SCBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
1557 OP_SCOND, /* 134 Conditional group, check empty */
1558
1559 /* The next two pairs must (respectively) be kept together. */
1560
1561 OP_CREF, /* 135 Used to hold a capture number as condition */
1562 OP_NCREF, /* 136 Same, but generated by a name reference*/
1563 OP_RREF, /* 137 Used to hold a recursion number as condition */
1564 OP_NRREF, /* 138 Same, but generated by a name reference*/
1565 OP_DEF, /* 139 The DEFINE condition */
1566
1567 OP_BRAZERO, /* 140 These two must remain together and in this */
1568 OP_BRAMINZERO, /* 141 order. */
1569 OP_BRAPOSZERO, /* 142 */
1570
1571 /* These are backtracking control verbs */
1572
1573 OP_MARK, /* 143 always has an argument */
1574 OP_PRUNE, /* 144 */
1575 OP_PRUNE_ARG, /* 145 same, but with argument */
1576 OP_SKIP, /* 146 */
1577 OP_SKIP_ARG, /* 147 same, but with argument */
1578 OP_THEN, /* 148 */
1579 OP_THEN_ARG, /* 149 same, but with argument */
1580 OP_COMMIT, /* 150 */
1581
1582 /* These are forced failure and success verbs */
1583
1584 OP_FAIL, /* 151 */
1585 OP_ACCEPT, /* 152 */
1586 OP_ASSERT_ACCEPT, /* 153 Used inside assertions */
1587 OP_CLOSE, /* 154 Used before OP_ACCEPT to close open captures */
1588
1589 /* This is used to skip a subpattern with a {0} quantifier */
1590
1591 OP_SKIPZERO, /* 155 */
1592
1593 /* This is not an opcode, but is used to check that tables indexed by opcode
1594 are the correct length, in order to catch updating errors - there have been
1595 some in the past. */
1596
1597 OP_TABLE_LENGTH
1598 };
1599
1600 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1601 definitions that follow must also be updated to match. There are also tables
1602 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1603
1604
1605 /* This macro defines textual names for all the opcodes. These are used only
1606 for debugging, and some of them are only partial names. The macro is referenced
1607 only in pcre_printint.c, which fills out the full names in many cases (and in
1608 some cases doesn't actually use these names at all). */
1609
1610 #define OP_NAME_LIST \
1611 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
1612 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
1613 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
1614 "extuni", "\\Z", "\\z", \
1615 "^", "^", "$", "$", "char", "chari", "not", "noti", \
1616 "*", "*?", "+", "+?", "?", "??", \
1617 "{", "{", "{", \
1618 "*+","++", "?+", "{", \
1619 "*", "*?", "+", "+?", "?", "??", \
1620 "{", "{", "{", \
1621 "*+","++", "?+", "{", \
1622 "*", "*?", "+", "+?", "?", "??", \
1623 "{", "{", "{", \
1624 "*+","++", "?+", "{", \
1625 "*", "*?", "+", "+?", "?", "??", \
1626 "{", "{", "{", \
1627 "*+","++", "?+", "{", \
1628 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
1629 "*+","++", "?+", "{", \
1630 "*", "*?", "+", "+?", "?", "??", "{", "{", \
1631 "class", "nclass", "xclass", "Ref", "Refi", \
1632 "Recurse", "Callout", \
1633 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
1634 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
1635 "Once", "Once_NC", \
1636 "Bra", "BraPos", "CBra", "CBraPos", \
1637 "Cond", \
1638 "SBra", "SBraPos", "SCBra", "SCBraPos", \
1639 "SCond", \
1640 "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
1641 "Brazero", "Braminzero", "Braposzero", \
1642 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
1643 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
1644 "*ACCEPT", "*ASSERT_ACCEPT", \
1645 "Close", "Skip zero"
1646
1647
1648 /* This macro defines the length of fixed length operations in the compiled
1649 regex. The lengths are used when searching for specific things, and also in the
1650 debugging printing of a compiled regex. We use a macro so that it can be
1651 defined close to the definitions of the opcodes themselves.
1652
1653 As things have been extended, some of these are no longer fixed lenths, but are
1654 minima instead. For example, the length of a single-character repeat may vary
1655 in UTF-8 mode. The code that uses this table must know about such things. */
1656
1657 #define OP_LENGTHS \
1658 1, /* End */ \
1659 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
1660 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
1661 1, 1, 1, /* Any, AllAny, Anybyte */ \
1662 3, 3, /* \P, \p */ \
1663 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
1664 1, /* \X */ \
1665 1, 1, 1, 1, 1, 1, /* \Z, \z, ^, ^M, $, $M */ \
1666 2, /* Char - the minimum length */ \
1667 2, /* Chari - the minimum length */ \
1668 2, /* not */ \
1669 2, /* noti */ \
1670 /* Positive single-char repeats ** These are */ \
1671 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
1672 4, 4, 4, /* upto, minupto, exact ** mode */ \
1673 2, 2, 2, 4, /* *+, ++, ?+, upto+ */ \
1674 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
1675 4, 4, 4, /* upto I, minupto I, exact I */ \
1676 2, 2, 2, 4, /* *+I, ++I, ?+I, upto+I */ \
1677 /* Negative single-char repeats - only for chars < 256 */ \
1678 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
1679 4, 4, 4, /* NOT upto, minupto, exact */ \
1680 2, 2, 2, 4, /* Possessive NOT *, +, ?, upto */ \
1681 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
1682 4, 4, 4, /* NOT upto I, minupto I, exact I */ \
1683 2, 2, 2, 4, /* Possessive NOT *I, +I, ?I, upto I */ \
1684 /* Positive type repeats */ \
1685 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
1686 4, 4, 4, /* Type upto, minupto, exact */ \
1687 2, 2, 2, 4, /* Possessive *+, ++, ?+, upto+ */ \
1688 /* Character class & ref repeats */ \
1689 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
1690 5, 5, /* CRRANGE, CRMINRANGE */ \
1691 33, /* CLASS */ \
1692 33, /* NCLASS */ \
1693 0, /* XCLASS - variable length */ \
1694 3, /* REF */ \
1695 3, /* REFI */ \
1696 1+LINK_SIZE, /* RECURSE */ \
1697 2+2*LINK_SIZE, /* CALLOUT */ \
1698 1+LINK_SIZE, /* Alt */ \
1699 1+LINK_SIZE, /* Ket */ \
1700 1+LINK_SIZE, /* KetRmax */ \
1701 1+LINK_SIZE, /* KetRmin */ \
1702 1+LINK_SIZE, /* KetRpos */ \
1703 1+LINK_SIZE, /* Reverse */ \
1704 1+LINK_SIZE, /* Assert */ \
1705 1+LINK_SIZE, /* Assert not */ \
1706 1+LINK_SIZE, /* Assert behind */ \
1707 1+LINK_SIZE, /* Assert behind not */ \
1708 1+LINK_SIZE, /* ONCE */ \
1709 1+LINK_SIZE, /* ONCE_NC */ \
1710 1+LINK_SIZE, /* BRA */ \
1711 1+LINK_SIZE, /* BRAPOS */ \
1712 3+LINK_SIZE, /* CBRA */ \
1713 3+LINK_SIZE, /* CBRAPOS */ \
1714 1+LINK_SIZE, /* COND */ \
1715 1+LINK_SIZE, /* SBRA */ \
1716 1+LINK_SIZE, /* SBRAPOS */ \
1717 3+LINK_SIZE, /* SCBRA */ \
1718 3+LINK_SIZE, /* SCBRAPOS */ \
1719 1+LINK_SIZE, /* SCOND */ \
1720 3, 3, /* CREF, NCREF */ \
1721 3, 3, /* RREF, NRREF */ \
1722 1, /* DEF */ \
1723 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
1724 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
1725 1, 3, /* SKIP, SKIP_ARG */ \
1726 1, 3, /* THEN, THEN_ARG */ \
1727 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
1728 3, 1 /* CLOSE, SKIPZERO */
1729
1730 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
1731 condition. */
1732
1733 #define RREF_ANY 0xffff
1734
1735 /* Compile time error code numbers. They are given names so that they can more
1736 easily be tracked. When a new number is added, the table called eint in
1737 pcreposix.c must be updated. */
1738
1739 enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
1740 ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
1741 ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
1742 ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
1743 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
1744 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
1745 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
1746 ERR70, ERRCOUNT };
1747
1748 /* The real format of the start of the pcre block; the index of names and the
1749 code vector run on as long as necessary after the end. We store an explicit
1750 offset to the name table so that if a regex is compiled on one host, saved, and
1751 then run on another where the size of pointers is different, all might still
1752 be well. For the case of compiled-on-4 and run-on-8, we include an extra
1753 pointer that is always NULL. For future-proofing, a few dummy fields were
1754 originally included - even though you can never get this planning right - but
1755 there is only one left now.
1756
1757 NOTE NOTE NOTE:
1758 Because people can now save and re-use compiled patterns, any additions to this
1759 structure should be made at the end, and something earlier (e.g. a new
1760 flag in the options or one of the dummy fields) should indicate that the new
1761 fields are present. Currently PCRE always sets the dummy fields to zero.
1762 NOTE NOTE NOTE
1763 */
1764
1765 typedef struct real_pcre {
1766 pcre_uint32 magic_number;
1767 pcre_uint32 size; /* Total that was malloced */
1768 pcre_uint32 options; /* Public options */
1769 pcre_uint16 flags; /* Private flags */
1770 pcre_uint16 dummy1; /* For future use */
1771 pcre_uint16 top_bracket;
1772 pcre_uint16 top_backref;
1773 pcre_uint16 first_byte;
1774 pcre_uint16 req_byte;
1775 pcre_uint16 name_table_offset; /* Offset to name table that follows */
1776 pcre_uint16 name_entry_size; /* Size of any name items */
1777 pcre_uint16 name_count; /* Number of name items */
1778 pcre_uint16 ref_count; /* Reference count */
1779
1780 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
1781 const pcre_uint8 *nullpad; /* NULL padding */
1782 } real_pcre;
1783
1784 /* The format of the block used to store data from pcre_study(). The same
1785 remark (see NOTE above) about extending this structure applies. */
1786
1787 typedef struct pcre_study_data {
1788 pcre_uint32 size; /* Total that was malloced */
1789 pcre_uint32 flags; /* Private flags */
1790 pcre_uint8 start_bits[32]; /* Starting char bits */
1791 pcre_uint32 minlength; /* Minimum subject length */
1792 } pcre_study_data;
1793
1794 /* Structure for building a chain of open capturing subpatterns during
1795 compiling, so that instructions to close them can be compiled when (*ACCEPT) is
1796 encountered. This is also used to identify subpatterns that contain recursive
1797 back references to themselves, so that they can be made atomic. */
1798
1799 typedef struct open_capitem {
1800 struct open_capitem *next; /* Chain link */
1801 pcre_uint16 number; /* Capture number */
1802 pcre_uint16 flag; /* Set TRUE if recursive back ref */
1803 } open_capitem;
1804
1805 /* Structure for passing "static" information around between the functions
1806 doing the compiling, so that they are thread-safe. */
1807
1808 typedef struct compile_data {
1809 const pcre_uint8 *lcc; /* Points to lower casing table */
1810 const pcre_uint8 *fcc; /* Points to case-flipping table */
1811 const pcre_uint8 *cbits; /* Points to character type table */
1812 const pcre_uint8 *ctypes; /* Points to table of type maps */
1813 const pcre_uchar *start_workspace;/* The start of working space */
1814 const pcre_uchar *start_code; /* The start of the compiled code */
1815 const pcre_uchar *start_pattern; /* The start of the pattern */
1816 const pcre_uchar *end_pattern; /* The end of the pattern */
1817 open_capitem *open_caps; /* Chain of open capture items */
1818 pcre_uchar *hwm; /* High watermark of workspace */
1819 pcre_uchar *name_table; /* The name/number table */
1820 int names_found; /* Number of entries so far */
1821 int name_entry_size; /* Size of each entry */
1822 int bracount; /* Count of capturing parens as we compile */
1823 int final_bracount; /* Saved value after first pass */
1824 int top_backref; /* Maximum back reference */
1825 unsigned int backref_map; /* Bitmap of low back refs */
1826 int assert_depth; /* Depth of nested assertions */
1827 int external_options; /* External (initial) options */
1828 int external_flags; /* External flag bits to be set */
1829 int req_varyopt; /* "After variable item" flag for reqbyte */
1830 BOOL had_accept; /* (*ACCEPT) encountered */
1831 BOOL check_lookbehind; /* Lookbehinds need later checking */
1832 int nltype; /* Newline type */
1833 int nllen; /* Newline string length */
1834 pcre_uchar nl[4]; /* Newline string when fixed length */
1835 } compile_data;
1836
1837 /* Structure for maintaining a chain of pointers to the currently incomplete
1838 branches, for testing for left recursion while compiling. */
1839
1840 typedef struct branch_chain {
1841 struct branch_chain *outer;
1842 pcre_uchar *current_branch;
1843 } branch_chain;
1844
1845 /* Structure for items in a linked list that represents an explicit recursive
1846 call within the pattern; used by pcre_exec(). */
1847
1848 typedef struct recursion_info {
1849 struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
1850 int group_num; /* Number of group that was called */
1851 int *offset_save; /* Pointer to start of saved offsets */
1852 int saved_max; /* Number of saved offsets */
1853 PCRE_PUCHAR subject_position; /* Position at start of recursion */
1854 } recursion_info;
1855
1856 /* A similar structure for pcre_dfa_exec(). */
1857
1858 typedef struct dfa_recursion_info {
1859 struct dfa_recursion_info *prevrec;
1860 int group_num;
1861 PCRE_PUCHAR subject_position;
1862 } dfa_recursion_info;
1863
1864 /* Structure for building a chain of data for holding the values of the subject
1865 pointer at the start of each subpattern, so as to detect when an empty string
1866 has been matched by a subpattern - to break infinite loops; used by
1867 pcre_exec(). */
1868
1869 typedef struct eptrblock {
1870 struct eptrblock *epb_prev;
1871 PCRE_PUCHAR epb_saved_eptr;
1872 } eptrblock;
1873
1874
1875 /* Structure for passing "static" information around between the functions
1876 doing traditional NFA matching, so that they are thread-safe. */
1877
1878 typedef struct match_data {
1879 unsigned long int match_call_count; /* As it says */
1880 unsigned long int match_limit; /* As it says */
1881 unsigned long int match_limit_recursion; /* As it says */
1882 int *offset_vector; /* Offset vector */
1883 int offset_end; /* One past the end */
1884 int offset_max; /* The maximum usable for return data */
1885 int nltype; /* Newline type */
1886 int nllen; /* Newline string length */
1887 int name_count; /* Number of names in name table */
1888 int name_entry_size; /* Size of entry in names table */
1889 pcre_uchar *name_table; /* Table of names */
1890 pcre_uchar nl[4]; /* Newline string when fixed */
1891 const pcre_uint8 *lcc; /* Points to lower casing table */
1892 const pcre_uint8 *ctypes; /* Points to table of type maps */
1893 BOOL offset_overflow; /* Set if too many extractions */
1894 BOOL notbol; /* NOTBOL flag */
1895 BOOL noteol; /* NOTEOL flag */
1896 BOOL utf8; /* UTF8 flag */
1897 BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
1898 BOOL use_ucp; /* PCRE_UCP flag */
1899 BOOL endonly; /* Dollar not before final \n */
1900 BOOL notempty; /* Empty string match not wanted */
1901 BOOL notempty_atstart; /* Empty string match at start not wanted */
1902 BOOL hitend; /* Hit the end of the subject at some point */
1903 BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
1904 BOOL hasthen; /* Pattern contains (*THEN) */
1905 const pcre_uchar *start_code; /* For use when recursing */
1906 PCRE_PUCHAR start_subject; /* Start of the subject string */
1907 PCRE_PUCHAR end_subject; /* End of the subject string */
1908 PCRE_PUCHAR start_match_ptr; /* Start of matched string */
1909 PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
1910 PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
1911 int partial; /* PARTIAL options */
1912 int end_offset_top; /* Highwater mark at end of match */
1913 int capture_last; /* Most recent capture number */
1914 int start_offset; /* The start offset value */
1915 int match_function_type; /* Set for certain special calls of MATCH() */
1916 eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
1917 int eptrn; /* Next free eptrblock */
1918 recursion_info *recursive; /* Linked list of recursion data */
1919 void *callout_data; /* To pass back to callouts */
1920 const pcre_uchar *mark; /* Mark pointer to pass back */
1921 const pcre_uchar *once_target; /* Where to back up to for atomic groups */
1922 } match_data;
1923
1924 /* A similar structure is used for the same purpose by the DFA matching
1925 functions. */
1926
1927 typedef struct dfa_match_data {
1928 const pcre_uchar *start_code; /* Start of the compiled pattern */
1929 const pcre_uchar *start_subject ; /* Start of the subject string */
1930 const pcre_uchar *end_subject; /* End of subject string */
1931 const pcre_uchar *start_used_ptr; /* Earliest consulted character */
1932 const pcre_uint8 *tables; /* Character tables */
1933 int start_offset; /* The start offset value */
1934 int moptions; /* Match options */
1935 int poptions; /* Pattern options */
1936 int nltype; /* Newline type */
1937 int nllen; /* Newline string length */
1938 pcre_uchar nl[4]; /* Newline string when fixed */
1939 void *callout_data; /* To pass back to callouts */
1940 dfa_recursion_info *recursive; /* Linked list of recursion data */
1941 } dfa_match_data;
1942
1943 /* Bit definitions for entries in the pcre_ctypes table. */
1944
1945 #define ctype_space 0x01
1946 #define ctype_letter 0x02
1947 #define ctype_digit 0x04
1948 #define ctype_xdigit 0x08
1949 #define ctype_word 0x10 /* alphanumeric or '_' */
1950 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
1951
1952 /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
1953 of bits for a class map. Some classes are built by combining these tables. */
1954
1955 #define cbit_space 0 /* [:space:] or \s */
1956 #define cbit_xdigit 32 /* [:xdigit:] */
1957 #define cbit_digit 64 /* [:digit:] or \d */
1958 #define cbit_upper 96 /* [:upper:] */
1959 #define cbit_lower 128 /* [:lower:] */
1960 #define cbit_word 160 /* [:word:] or \w */
1961 #define cbit_graph 192 /* [:graph:] */
1962 #define cbit_print 224 /* [:print:] */
1963 #define cbit_punct 256 /* [:punct:] */
1964 #define cbit_cntrl 288 /* [:cntrl:] */
1965 #define cbit_length 320 /* Length of the cbits table */
1966
1967 /* Offsets of the various tables from the base tables pointer, and
1968 total length. */
1969
1970 #define lcc_offset 0
1971 #define fcc_offset 256
1972 #define cbits_offset 512
1973 #define ctypes_offset (cbits_offset + cbit_length)
1974 #define tables_length (ctypes_offset + 256)
1975
1976 /* Internal function prefix */
1977
1978 #ifdef COMPILE_PCRE8
1979 #define PRIV(name) _pcre_##name
1980 #else
1981 #ifdef COMPILE_PCRE16
1982 #define PRIV(name) _pcre16_##name
1983 #else
1984 #error Unsupported compiling mode
1985 #endif /* COMPILE_PCRE16 */
1986 #endif /* COMPILE_PCRE8 */
1987
1988 /* Layout of the UCP type table that translates property names into types and
1989 codes. Each entry used to point directly to a name, but to reduce the number of
1990 relocations in shared libraries, it now has an offset into a single string
1991 instead. */
1992
1993 typedef struct {
1994 pcre_uint16 name_offset;
1995 pcre_uint16 type;
1996 pcre_uint16 value;
1997 } ucp_type_table;
1998
1999
2000 /* Internal shared data tables. These are tables that are used by more than one
2001 of the exported public functions. They have to be "external" in the C sense,
2002 but are not part of the PCRE public API. The data for these tables is in the
2003 pcre_tables.c module. */
2004
2005 extern const int PRIV(utf8_table1)[];
2006 extern const int PRIV(utf8_table2)[];
2007 extern const int PRIV(utf8_table3)[];
2008 extern const pcre_uint8 PRIV(utf8_table4)[];
2009
2010 extern const int PRIV(utf8_table1_size);
2011
2012 extern const char PRIV(utt_names)[];
2013 extern const ucp_type_table PRIV(utt)[];
2014 extern const int PRIV(utt_size);
2015
2016 extern const pcre_uint8 PRIV(default_tables)[];
2017
2018 extern const pcre_uint8 PRIV(OP_lengths)[];
2019
2020
2021 /* Internal shared functions. These are functions that are used by more than
2022 one of the exported public functions. They have to be "external" in the C
2023 sense, but are not part of the PCRE public API. */
2024
2025 /* String comparison functions. */
2026 #ifdef COMPILE_PCRE8
2027
2028 #define STRCMP_UC_UC(str1, str2) \
2029 strcmp((char *)(str1), (char *)(str2))
2030 #define STRCMP_UC_C8(str1, str2) \
2031 strcmp((char *)(str1), (str2))
2032 #define STRNCMP_UC_UC(str1, str2, num) \
2033 strncmp((char *)(str1), (char *)(str2), (num))
2034 #define STRNCMP_UC_C8(str1, str2, num) \
2035 strncmp((char *)(str1), (str2), (num))
2036 #define STRLEN_UC(str) strlen(str)
2037
2038 #else
2039
2040 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2041 const pcre_uchar *);
2042 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2043 const char *);
2044 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2045 const pcre_uchar *, unsigned int num);
2046 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2047 const char *, unsigned int num);
2048 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2049
2050 #define STRCMP_UC_UC(str1, str2) \
2051 PRIV(strcmp_uc_uc)((str1), (str2))
2052 #define STRCMP_UC_C8(str1, str2) \
2053 PRIV(strcmp_uc_c8)((str1), (str2))
2054 #define STRNCMP_UC_UC(str1, str2, num) \
2055 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2056 #define STRNCMP_UC_C8(str1, str2, num) \
2057 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2058 #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2059
2060 #endif /* COMPILE_PCRE8 */
2061
2062 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2063 extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2064 int *, BOOL);
2065 extern int PRIV(ord2utf8)(int, pcre_uint8 *);
2066 extern real_pcre *PRIV(try_flipped)(const real_pcre *, real_pcre *,
2067 const pcre_study_data *, pcre_study_data *);
2068 #ifndef COMPILE_PCRE16
2069 extern int PRIV(valid_utf8)(PCRE_PUCHAR, int, int *);
2070 #else
2071 extern int PRIV(valid_utf16)(PCRE_PUCHAR, int, int *);
2072 #endif
2073 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2074 int *, BOOL);
2075 extern BOOL PRIV(xclass)(int, const pcre_uchar *);
2076
2077 #ifdef SUPPORT_JIT
2078 extern void PRIV(jit_compile)(const real_pcre *, pcre_extra *);
2079 extern int PRIV(jit_exec)(const real_pcre *, void *, PCRE_SPTR,
2080 int, int, int, int, int *, int);
2081 extern void PRIV(jit_free)(void *);
2082 #endif
2083
2084 /* Unicode character database (UCD) */
2085
2086 typedef struct {
2087 pcre_uint8 script;
2088 pcre_uint8 chartype;
2089 pcre_int32 other_case;
2090 } ucd_record;
2091
2092 extern const ucd_record PRIV(ucd_records)[];
2093 extern const pcre_uint8 PRIV(ucd_stage1)[];
2094 extern const pcre_uint16 PRIV(ucd_stage2)[];
2095 extern const int PRIV(ucp_gentype)[];
2096 #ifdef SUPPORT_JIT
2097 extern const int PRIV(ucp_typerange)[];
2098 #endif
2099
2100 /* UCD access macros */
2101
2102 #define UCD_BLOCK_SIZE 128
2103 #define GET_UCD(ch) (PRIV(ucd_records) + \
2104 PRIV(ucd_stage2)[PRIV(ucd_stage1)[(ch) / UCD_BLOCK_SIZE] * \
2105 UCD_BLOCK_SIZE + (ch) % UCD_BLOCK_SIZE])
2106
2107 #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2108 #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2109 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2110 #define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)
2111
2112 #endif
2113
2114 /* End of pcre_internal.h */

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