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Revision 767 - (hide annotations) (download)
Sat Nov 26 12:48:56 2011 UTC (2 years, 8 months ago) by zherczeg
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Make simple patterns work in PCRE16
1 nigel 77 /*************************************************
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 ph10 642 Copyright (c) 1997-2011 University of Cambridge
11 nigel 77
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 zherczeg 764 functions whose names all begin with "_pcre_" or "_pcre16_" depending on
44     the PRIV macro. */
45 nigel 77
46 nigel 85 #ifndef PCRE_INTERNAL_H
47     #define PCRE_INTERNAL_H
48 nigel 77
49 ph10 475 /* Define PCRE_DEBUG to get debugging output on stdout. */
50 nigel 77
51 nigel 85 #if 0
52 ph10 475 #define PCRE_DEBUG
53 nigel 85 #endif
54 nigel 77
55 zherczeg 763 /* 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 ph10 757 /* We do not support both EBCDIC and UTF-8/16 at the same time. The "configure"
61 ph10 391 script prevents both being selected, but not everybody uses "configure". */
62    
63 ph10 757 #if defined EBCDIC && (defined SUPPORT_UTF8 || defined SUPPORT_UTF16)
64     #error The use of both EBCDIC and SUPPORT_UTF8/16 is not supported.
65 ph10 391 #endif
66    
67 ph10 406 /* If SUPPORT_UCP is defined, SUPPORT_UTF8 must also be defined. The
68 ph10 393 "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 nigel 77 /* 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 nigel 93 all, it had only been about 10 years then...
78 nigel 77
79 nigel 93 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 ph10 475 #ifdef PCRE_DEBUG
84 nigel 77 #define DPRINTF(p) printf p
85     #else
86 nigel 93 #define DPRINTF(p) /* Nothing */
87 nigel 77 #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 ph10 145 /* 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 ph10 154 information there, using __declspec(dllexport) without "extern" we have a
104 ph10 145 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 ph10 154 which is all that is needed for applications (they just import the symbols). We
107     use:
108 ph10 145
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 ph10 154 internals, can #include pcre.h first to get an application's-eye view.
121 ph10 145
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 ph10 199 # ifndef PCRE_STATIC
130 ph10 145 # 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 nigel 77 #endif
152    
153 ph10 359 /* When compiling with the MSVC compiler, it is sometimes necessary to include
154 ph10 371 a "calling convention" before exported function names. (This is secondhand
155 ph10 359 information; I know nothing about MSVC myself). For example, something like
156    
157     void __cdecl function(....)
158 ph10 371
159 ph10 359 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 ph10 371 set, we ensure here that it has no effect. */
162 ph10 359
163     #ifndef PCRE_CALL_CONVENTION
164     #define PCRE_CALL_CONVENTION
165     #endif
166    
167 ph10 756 /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
168 nigel 77 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 ph10 756 typedef unsigned char pcre_uint8;
174    
175 nigel 77 #if USHRT_MAX == 65535
176     typedef unsigned short pcre_uint16;
177 ph10 349 typedef short pcre_int16;
178 nigel 77 #elif UINT_MAX == 65535
179     typedef unsigned int pcre_uint16;
180 ph10 349 typedef int pcre_int16;
181 nigel 77 #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 ph10 349 typedef int pcre_int32;
188 nigel 77 #elif ULONG_MAX == 4294967295
189     typedef unsigned long int pcre_uint32;
190 ph10 349 typedef long int pcre_int32;
191 nigel 77 #else
192     #error Cannot determine a type for 32-bit unsigned integers
193     #endif
194    
195 ph10 487 /* 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 ph10 494 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 ph10 475
203     #if HAVE_STDINT_H
204     #include <stdint.h>
205 ph10 494 #elif HAVE_INTTYPES_H
206     #include <inttypes.h>
207 ph10 475 #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 nigel 77 /* 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 ph10 757 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 nigel 77
223 zherczeg 767 #ifdef COMPILE_PCRE8
224    
225 ph10 756 typedef unsigned char pcre_uchar;
226 zherczeg 767 #define IN_UCHARS(x) (x)
227    
228 ph10 757 #else
229 zherczeg 767
230     #ifdef COMPILE_PCRE16
231 ph10 757 #if USHRT_MAX != 65535
232     /* This is a warning message. Change PCRE_SCHAR16 to a 16 bit data type in
233     pcre.h(.in) and disable (comment out) this message. */
234     #error Warning: PCRE_SCHAR16 is not a 16 bit data type.
235     #endif
236 zherczeg 763 typedef pcre_uint16 pcre_uchar;
237 zherczeg 767 #define IN_UCHARS(x) ((x) << 1)
238 nigel 77
239 zherczeg 767 #else
240     #error Unsupported compiling mode
241     #endif /* COMPILE_PCRE16 */
242    
243     #endif /* COMPILE_PCRE8 */
244    
245 nigel 93 /* This is an unsigned int value that no character can ever have. UTF-8
246     characters only go up to 0x7fffffff (though Unicode doesn't go beyond
247     0x0010ffff). */
248 nigel 91
249 nigel 93 #define NOTACHAR 0xffffffff
250    
251     /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
252 ph10 149 "any" and "anycrlf" at present). The following macros are used to package up
253     testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
254     modules to indicate in which datablock the parameters exist, and what the
255     start/end of string field names are. */
256 nigel 93
257 ph10 149 #define NLTYPE_FIXED 0 /* Newline is a fixed length string */
258     #define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
259     #define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
260 nigel 93
261     /* This macro checks for a newline at the given position */
262    
263 nigel 91 #define IS_NEWLINE(p) \
264 nigel 93 ((NLBLOCK->nltype != NLTYPE_FIXED)? \
265     ((p) < NLBLOCK->PSEND && \
266 zherczeg 764 PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, &(NLBLOCK->nllen),\
267 ph10 149 utf8)) \
268 nigel 93 : \
269     ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
270     (p)[0] == NLBLOCK->nl[0] && \
271     (NLBLOCK->nllen == 1 || (p)[1] == NLBLOCK->nl[1]) \
272     ) \
273     )
274 nigel 91
275 nigel 93 /* This macro checks for a newline immediately preceding the given position */
276    
277     #define WAS_NEWLINE(p) \
278     ((NLBLOCK->nltype != NLTYPE_FIXED)? \
279     ((p) > NLBLOCK->PSSTART && \
280 zherczeg 764 PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
281 ph10 149 &(NLBLOCK->nllen), utf8)) \
282 nigel 93 : \
283     ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
284     (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
285     (NLBLOCK->nllen == 1 || (p)[-NLBLOCK->nllen+1] == NLBLOCK->nl[1]) \
286     ) \
287     )
288    
289 nigel 87 /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
290     with a custom type. This makes it possible, for example, to allow pcre_exec()
291     to process subject strings that are discontinuous by using a smart pointer
292     class. It must always be possible to inspect all of the subject string in
293     pcre_exec() because of the way it backtracks. Two macros are required in the
294     normal case, for sign-unspecified and unsigned char pointers. The former is
295     used for the external interface and appears in pcre.h, which is why its name
296     must begin with PCRE_. */
297    
298     #ifdef CUSTOM_SUBJECT_PTR
299 ph10 756 #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
300 nigel 87 #else
301 ph10 756 #define PCRE_PUCHAR const pcre_uchar *
302 nigel 87 #endif
303    
304 nigel 85 /* Include the public PCRE header and the definitions of UCP character property
305     values. */
306 nigel 77
307 ph10 189 #include "pcre.h"
308 nigel 77 #include "ucp.h"
309    
310     /* When compiling for use with the Virtual Pascal compiler, these functions
311     need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
312     option on the command line. */
313    
314     #ifdef VPCOMPAT
315 ph10 101 #define strlen(s) _strlen(s)
316 nigel 77 #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
317 ph10 101 #define memcmp(s,c,n) _memcmp(s,c,n)
318 nigel 77 #define memcpy(d,s,n) _memcpy(d,s,n)
319     #define memmove(d,s,n) _memmove(d,s,n)
320     #define memset(s,c,n) _memset(s,c,n)
321     #else /* VPCOMPAT */
322    
323     /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
324     define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
325     is set. Otherwise, include an emulating function for those systems that have
326 ph10 118 neither (there some non-Unix environments where this is the case). */
327 nigel 77
328 ph10 137 #ifndef HAVE_MEMMOVE
329 nigel 77 #undef memmove /* some systems may have a macro */
330 ph10 137 #ifdef HAVE_BCOPY
331 nigel 77 #define memmove(a, b, c) bcopy(b, a, c)
332     #else /* HAVE_BCOPY */
333 nigel 91 static void *
334 ph10 108 pcre_memmove(void *d, const void *s, size_t n)
335 nigel 77 {
336 nigel 87 size_t i;
337 ph10 108 unsigned char *dest = (unsigned char *)d;
338     const unsigned char *src = (const unsigned char *)s;
339 ph10 118 if (dest > src)
340     {
341     dest += n;
342     src += n;
343     for (i = 0; i < n; ++i) *(--dest) = *(--src);
344     return (void *)dest;
345     }
346     else
347     {
348     for (i = 0; i < n; ++i) *dest++ = *src++;
349 ph10 123 return (void *)(dest - n);
350     }
351 nigel 77 }
352     #define memmove(a, b, c) pcre_memmove(a, b, c)
353     #endif /* not HAVE_BCOPY */
354     #endif /* not HAVE_MEMMOVE */
355     #endif /* not VPCOMPAT */
356    
357    
358     /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
359     in big-endian order) by default. These are used, for example, to link from the
360     start of a subpattern to its alternatives and its end. The use of 2 bytes per
361     offset limits the size of the compiled regex to around 64K, which is big enough
362     for almost everybody. However, I received a request for an even bigger limit.
363     For this reason, and also to make the code easier to maintain, the storing and
364     loading of offsets from the byte string is now handled by the macros that are
365     defined here.
366    
367     The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
368     the config.h file, but can be overridden by using -D on the command line. This
369     is automated on Unix systems via the "configure" command. */
370    
371 zherczeg 764 #ifdef COMPILE_PCRE8
372    
373 nigel 77 #if LINK_SIZE == 2
374    
375     #define PUT(a,n,d) \
376     (a[n] = (d) >> 8), \
377     (a[(n)+1] = (d) & 255)
378    
379     #define GET(a,n) \
380     (((a)[n] << 8) | (a)[(n)+1])
381    
382     #define MAX_PATTERN_SIZE (1 << 16)
383    
384    
385     #elif LINK_SIZE == 3
386    
387     #define PUT(a,n,d) \
388     (a[n] = (d) >> 16), \
389     (a[(n)+1] = (d) >> 8), \
390     (a[(n)+2] = (d) & 255)
391    
392     #define GET(a,n) \
393     (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
394    
395     #define MAX_PATTERN_SIZE (1 << 24)
396    
397    
398     #elif LINK_SIZE == 4
399    
400     #define PUT(a,n,d) \
401     (a[n] = (d) >> 24), \
402     (a[(n)+1] = (d) >> 16), \
403     (a[(n)+2] = (d) >> 8), \
404     (a[(n)+3] = (d) & 255)
405    
406     #define GET(a,n) \
407     (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
408    
409 zherczeg 764 /* Keep it positive */
410     #define MAX_PATTERN_SIZE (1 << 30)
411 nigel 77
412 zherczeg 764 #else
413     #error LINK_SIZE must be either 2, 3, or 4
414     #endif
415 nigel 77
416 zherczeg 764 #else /* COMPILE_PCRE8 */
417    
418     #ifdef COMPILE_PCRE16
419    
420     #if LINK_SIZE == 2
421    
422     #undef LINK_SIZE
423     #define LINK_SIZE 1
424    
425     #define PUT(a,n,d) \
426     (a[n] = (d))
427    
428     #define GET(a,n) \
429     (a[n])
430    
431     #define MAX_PATTERN_SIZE (1 << 16)
432    
433     #elif LINK_SIZE == 3 || LINK_SIZE == 4
434    
435 zherczeg 767 #undef LINK_SIZE
436     #define LINK_SIZE 2
437    
438 zherczeg 764 #define PUT(a,n,d) \
439     (a[n] = (d) >> 16), \
440     (a[(n)+1] = (d) & 65536)
441    
442     #define GET(a,n) \
443     (((a)[n] << 16) | (a)[(n)+1])
444    
445     /* Keep it positive */
446     #define MAX_PATTERN_SIZE (1 << 30)
447    
448 nigel 77 #else
449     #error LINK_SIZE must be either 2, 3, or 4
450     #endif
451    
452 zherczeg 764 #else
453     #error Unsupported compiling mode
454     #endif /* COMPILE_PCRE16 */
455 nigel 77
456 zherczeg 764 #endif /* COMPILE_PCRE8 */
457    
458 nigel 77 /* Convenience macro defined in terms of the others */
459    
460     #define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
461    
462    
463     /* PCRE uses some other 2-byte quantities that do not change when the size of
464     offsets changes. There are used for repeat counts and for other things such as
465     capturing parenthesis numbers in back references. */
466    
467 zherczeg 763 #ifdef COMPILE_PCRE8
468    
469     #define IMM2_SIZE 2
470    
471 nigel 77 #define PUT2(a,n,d) \
472     a[n] = (d) >> 8; \
473     a[(n)+1] = (d) & 255
474    
475     #define GET2(a,n) \
476     (((a)[n] << 8) | (a)[(n)+1])
477    
478 zherczeg 764 #else /* COMPILE_PCRE8 */
479 nigel 77
480 zherczeg 764 #ifdef COMPILE_PCRE16
481 nigel 77
482 zherczeg 763 #define IMM2_SIZE 1
483    
484     #define PUT2(a,n,d) \
485     a[n] = d
486    
487     #define GET2(a,n) \
488     a[n]
489    
490     #else
491     #error Unsupported compiling mode
492 zherczeg 764 #endif /* COMPILE_PCRE16 */
493    
494 zherczeg 763 #endif /* COMPILE_PCRE8 */
495    
496     #define PUT2INC(a,n,d) PUT2(a,n,d), a += IMM2_SIZE
497    
498 nigel 77 /* When UTF-8 encoding is being used, a character is no longer just a single
499     byte. The macros for character handling generate simple sequences when used in
500 ph10 573 byte-mode, and more complicated ones for UTF-8 characters. GETCHARLENTEST is
501     not used when UTF-8 is not supported, so it is not defined, and BACKCHAR should
502     never be called in byte mode. To make sure they can never even appear when
503     UTF-8 support is omitted, we don't even define them. */
504 nigel 77
505     #ifndef SUPPORT_UTF8
506     #define GETCHAR(c, eptr) c = *eptr;
507     #define GETCHARTEST(c, eptr) c = *eptr;
508     #define GETCHARINC(c, eptr) c = *eptr++;
509     #define GETCHARINCTEST(c, eptr) c = *eptr++;
510     #define GETCHARLEN(c, eptr, len) c = *eptr;
511 ph10 573 /* #define GETCHARLENTEST(c, eptr, len) */
512 ph10 207 /* #define BACKCHAR(eptr) */
513 nigel 77
514     #else /* SUPPORT_UTF8 */
515    
516 ph10 573 /* These macros were originally written in the form of loops that used data
517 zherczeg 764 from the tables whose names start with PRIV(utf8_table). They were rewritten by
518 ph10 573 a user so as not to use loops, because in some environments this gives a
519     significant performance advantage, and it seems never to do any harm. */
520    
521     /* Base macro to pick up the remaining bytes of a UTF-8 character, not
522     advancing the pointer. */
523    
524     #define GETUTF8(c, eptr) \
525     { \
526     if ((c & 0x20) == 0) \
527     c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
528     else if ((c & 0x10) == 0) \
529     c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
530     else if ((c & 0x08) == 0) \
531     c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
532     ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
533     else if ((c & 0x04) == 0) \
534     c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
535     ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
536     (eptr[4] & 0x3f); \
537     else \
538     c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
539     ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
540     ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
541     }
542    
543 nigel 77 /* Get the next UTF-8 character, not advancing the pointer. This is called when
544     we know we are in UTF-8 mode. */
545    
546     #define GETCHAR(c, eptr) \
547     c = *eptr; \
548 ph10 573 if (c >= 0xc0) GETUTF8(c, eptr);
549 nigel 77
550     /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
551     pointer. */
552    
553     #define GETCHARTEST(c, eptr) \
554     c = *eptr; \
555 ph10 573 if (utf8 && c >= 0xc0) GETUTF8(c, eptr);
556    
557     /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
558     the pointer. */
559    
560     #define GETUTF8INC(c, eptr) \
561 nigel 77 { \
562 ph10 573 if ((c & 0x20) == 0) \
563     c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
564     else if ((c & 0x10) == 0) \
565 nigel 77 { \
566 ph10 573 c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
567     eptr += 2; \
568 nigel 77 } \
569 ph10 573 else if ((c & 0x08) == 0) \
570     { \
571     c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
572     ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
573     eptr += 3; \
574     } \
575     else if ((c & 0x04) == 0) \
576     { \
577     c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
578     ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
579     (eptr[3] & 0x3f); \
580     eptr += 4; \
581     } \
582     else \
583     { \
584     c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
585     ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
586     ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
587     eptr += 5; \
588     } \
589 nigel 77 }
590    
591     /* Get the next UTF-8 character, advancing the pointer. This is called when we
592     know we are in UTF-8 mode. */
593    
594     #define GETCHARINC(c, eptr) \
595     c = *eptr++; \
596 ph10 573 if (c >= 0xc0) GETUTF8INC(c, eptr);
597 nigel 77
598 ph10 529 /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
599     This is called when we don't know if we are in UTF-8 mode. */
600 nigel 77
601     #define GETCHARINCTEST(c, eptr) \
602     c = *eptr++; \
603 ph10 573 if (utf8 && c >= 0xc0) GETUTF8INC(c, eptr);
604    
605     /* Base macro to pick up the remaining bytes of a UTF-8 character, not
606     advancing the pointer, incrementing the length. */
607    
608     #define GETUTF8LEN(c, eptr, len) \
609 nigel 77 { \
610 ph10 573 if ((c & 0x20) == 0) \
611 nigel 77 { \
612 ph10 573 c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
613     len++; \
614 nigel 77 } \
615 ph10 573 else if ((c & 0x10) == 0) \
616     { \
617     c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
618     len += 2; \
619     } \
620     else if ((c & 0x08) == 0) \
621     {\
622     c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
623     ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
624     len += 3; \
625     } \
626     else if ((c & 0x04) == 0) \
627     { \
628     c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
629     ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
630     (eptr[4] & 0x3f); \
631     len += 4; \
632     } \
633     else \
634     {\
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     len += 5; \
639     } \
640 nigel 77 }
641    
642     /* Get the next UTF-8 character, not advancing the pointer, incrementing length
643     if there are extra bytes. This is called when we know we are in UTF-8 mode. */
644    
645     #define GETCHARLEN(c, eptr, len) \
646     c = *eptr; \
647 ph10 573 if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
648 nigel 77
649 ph10 384 /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
650     pointer, incrementing length if there are extra bytes. This is called when we
651 ph10 529 do not know if we are in UTF-8 mode. */
652 ph10 384
653     #define GETCHARLENTEST(c, eptr, len) \
654     c = *eptr; \
655 ph10 573 if (utf8 && c >= 0xc0) GETUTF8LEN(c, eptr, len);
656 ph10 384
657 nigel 77 /* If the pointer is not at the start of a character, move it back until
658 ph10 208 it is. This is called only in UTF-8 mode - we don't put a test within the macro
659 ph10 207 because almost all calls are already within a block of UTF-8 only code. */
660 nigel 77
661 ph10 207 #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
662 nigel 77
663 ph10 573 #endif /* SUPPORT_UTF8 */
664 nigel 77
665    
666     /* In case there is no definition of offsetof() provided - though any proper
667     Standard C system should have one. */
668    
669     #ifndef offsetof
670     #define offsetof(p_type,field) ((size_t)&(((p_type *)0)->field))
671     #endif
672    
673    
674 ph10 231 /* Private flags containing information about the compiled regex. They used to
675     live at the top end of the options word, but that got almost full, so now they
676 ph10 426 are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
677 ph10 427 the restrictions on partial matching have been lifted. It remains for backwards
678 ph10 426 compatibility. */
679 nigel 77
680 ph10 230 #define PCRE_NOPARTIAL 0x0001 /* can't use partial with this regex */
681     #define PCRE_FIRSTSET 0x0002 /* first_byte is set */
682     #define PCRE_REQCHSET 0x0004 /* req_byte is set */
683     #define PCRE_STARTLINE 0x0008 /* start after \n for multiline */
684     #define PCRE_JCHANGED 0x0010 /* j option used in regex */
685     #define PCRE_HASCRORLF 0x0020 /* explicit \r or \n in pattern */
686 ph10 702 #define PCRE_HASTHEN 0x0040 /* pattern contains (*THEN) */
687 nigel 77
688 ph10 612 /* Flags for the "extra" block produced by pcre_study(). */
689 nigel 77
690 ph10 612 #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
691     #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
692 nigel 77
693     /* Masks for identifying the public options that are permitted at compile
694     time, run time, or study time, respectively. */
695    
696 ph10 149 #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
697     PCRE_NEWLINE_ANYCRLF)
698 nigel 93
699 ph10 389 #define PUBLIC_COMPILE_OPTIONS \
700 nigel 77 (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
701     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
702 nigel 91 PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
703 ph10 336 PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
704 ph10 576 PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
705 nigel 77
706     #define PUBLIC_EXEC_OPTIONS \
707 ph10 442 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
708     PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
709     PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
710 nigel 77
711     #define PUBLIC_DFA_EXEC_OPTIONS \
712 ph10 442 (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
713     PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
714     PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
715     PCRE_NO_START_OPTIMIZE)
716 nigel 77
717 ph10 667 #define PUBLIC_STUDY_OPTIONS \
718     PCRE_STUDY_JIT_COMPILE
719 nigel 77
720     /* Magic number to provide a small check against being handed junk. Also used
721     to detect whether a pattern was compiled on a host of different endianness. */
722    
723     #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
724    
725     /* Negative values for the firstchar and reqchar variables */
726    
727     #define REQ_UNSET (-2)
728     #define REQ_NONE (-1)
729    
730     /* The maximum remaining length of subject we are prepared to search for a
731     req_byte match. */
732    
733     #define REQ_BYTE_MAX 1000
734    
735     /* Flags added to firstbyte or reqbyte; a "non-literal" item is either a
736     variable-length repeat, or a anything other than literal characters. */
737    
738     #define REQ_CASELESS 0x0100 /* indicates caselessness */
739     #define REQ_VARY 0x0200 /* reqbyte followed non-literal item */
740    
741 ph10 369 /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
742 ph10 376 environments where these macros are defined elsewhere. Unfortunately, there
743     is no way to do the same for the typedef. */
744 nigel 77
745     typedef int BOOL;
746    
747 ph10 376 #ifndef FALSE
748 nigel 77 #define FALSE 0
749     #define TRUE 1
750 ph10 369 #endif
751 nigel 77
752 ph10 391 /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
753     character constants like '*' because the compiler would emit their EBCDIC code,
754 ph10 392 which is different from their ASCII/UTF-8 code. Instead we define macros for
755     the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
756     is enabled. When UTF-8 support is not enabled, the definitions use character
757     literals. Both character and string versions of each character are needed, and
758 ph10 391 there are some longer strings as well.
759    
760 ph10 392 This means that, on EBCDIC platforms, the PCRE library can handle either
761 ph10 391 EBCDIC, or UTF-8, but not both. To support both in the same compiled library
762     would need different lookups depending on whether PCRE_UTF8 was set or not.
763     This would make it impossible to use characters in switch/case statements,
764 ph10 392 which would reduce performance. For a theoretical use (which nobody has asked
765     for) in a minority area (EBCDIC platforms), this is not sensible. Any
766     application that did need both could compile two versions of the library, using
767 ph10 391 macros to give the functions distinct names. */
768    
769     #ifndef SUPPORT_UTF8
770    
771     /* UTF-8 support is not enabled; use the platform-dependent character literals
772     so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */
773    
774     #define CHAR_HT '\t'
775     #define CHAR_VT '\v'
776     #define CHAR_FF '\f'
777     #define CHAR_CR '\r'
778     #define CHAR_NL '\n'
779     #define CHAR_BS '\b'
780     #define CHAR_BEL '\a'
781     #ifdef EBCDIC
782     #define CHAR_ESC '\047'
783     #define CHAR_DEL '\007'
784     #else
785     #define CHAR_ESC '\033'
786     #define CHAR_DEL '\177'
787     #endif
788    
789     #define CHAR_SPACE ' '
790     #define CHAR_EXCLAMATION_MARK '!'
791     #define CHAR_QUOTATION_MARK '"'
792     #define CHAR_NUMBER_SIGN '#'
793     #define CHAR_DOLLAR_SIGN '$'
794     #define CHAR_PERCENT_SIGN '%'
795     #define CHAR_AMPERSAND '&'
796     #define CHAR_APOSTROPHE '\''
797     #define CHAR_LEFT_PARENTHESIS '('
798     #define CHAR_RIGHT_PARENTHESIS ')'
799     #define CHAR_ASTERISK '*'
800     #define CHAR_PLUS '+'
801     #define CHAR_COMMA ','
802     #define CHAR_MINUS '-'
803     #define CHAR_DOT '.'
804     #define CHAR_SLASH '/'
805     #define CHAR_0 '0'
806     #define CHAR_1 '1'
807     #define CHAR_2 '2'
808     #define CHAR_3 '3'
809     #define CHAR_4 '4'
810     #define CHAR_5 '5'
811     #define CHAR_6 '6'
812     #define CHAR_7 '7'
813     #define CHAR_8 '8'
814     #define CHAR_9 '9'
815     #define CHAR_COLON ':'
816     #define CHAR_SEMICOLON ';'
817     #define CHAR_LESS_THAN_SIGN '<'
818     #define CHAR_EQUALS_SIGN '='
819     #define CHAR_GREATER_THAN_SIGN '>'
820     #define CHAR_QUESTION_MARK '?'
821     #define CHAR_COMMERCIAL_AT '@'
822     #define CHAR_A 'A'
823     #define CHAR_B 'B'
824     #define CHAR_C 'C'
825     #define CHAR_D 'D'
826     #define CHAR_E 'E'
827     #define CHAR_F 'F'
828     #define CHAR_G 'G'
829     #define CHAR_H 'H'
830     #define CHAR_I 'I'
831     #define CHAR_J 'J'
832     #define CHAR_K 'K'
833     #define CHAR_L 'L'
834     #define CHAR_M 'M'
835     #define CHAR_N 'N'
836     #define CHAR_O 'O'
837     #define CHAR_P 'P'
838     #define CHAR_Q 'Q'
839     #define CHAR_R 'R'
840     #define CHAR_S 'S'
841     #define CHAR_T 'T'
842     #define CHAR_U 'U'
843     #define CHAR_V 'V'
844     #define CHAR_W 'W'
845     #define CHAR_X 'X'
846     #define CHAR_Y 'Y'
847     #define CHAR_Z 'Z'
848     #define CHAR_LEFT_SQUARE_BRACKET '['
849     #define CHAR_BACKSLASH '\\'
850     #define CHAR_RIGHT_SQUARE_BRACKET ']'
851     #define CHAR_CIRCUMFLEX_ACCENT '^'
852     #define CHAR_UNDERSCORE '_'
853     #define CHAR_GRAVE_ACCENT '`'
854     #define CHAR_a 'a'
855     #define CHAR_b 'b'
856     #define CHAR_c 'c'
857     #define CHAR_d 'd'
858     #define CHAR_e 'e'
859     #define CHAR_f 'f'
860     #define CHAR_g 'g'
861     #define CHAR_h 'h'
862     #define CHAR_i 'i'
863     #define CHAR_j 'j'
864     #define CHAR_k 'k'
865     #define CHAR_l 'l'
866     #define CHAR_m 'm'
867     #define CHAR_n 'n'
868     #define CHAR_o 'o'
869     #define CHAR_p 'p'
870     #define CHAR_q 'q'
871     #define CHAR_r 'r'
872     #define CHAR_s 's'
873     #define CHAR_t 't'
874     #define CHAR_u 'u'
875     #define CHAR_v 'v'
876     #define CHAR_w 'w'
877     #define CHAR_x 'x'
878     #define CHAR_y 'y'
879     #define CHAR_z 'z'
880     #define CHAR_LEFT_CURLY_BRACKET '{'
881     #define CHAR_VERTICAL_LINE '|'
882     #define CHAR_RIGHT_CURLY_BRACKET '}'
883     #define CHAR_TILDE '~'
884    
885     #define STR_HT "\t"
886     #define STR_VT "\v"
887     #define STR_FF "\f"
888     #define STR_CR "\r"
889     #define STR_NL "\n"
890     #define STR_BS "\b"
891     #define STR_BEL "\a"
892     #ifdef EBCDIC
893     #define STR_ESC "\047"
894     #define STR_DEL "\007"
895     #else
896     #define STR_ESC "\033"
897     #define STR_DEL "\177"
898     #endif
899    
900     #define STR_SPACE " "
901     #define STR_EXCLAMATION_MARK "!"
902     #define STR_QUOTATION_MARK "\""
903     #define STR_NUMBER_SIGN "#"
904     #define STR_DOLLAR_SIGN "$"
905     #define STR_PERCENT_SIGN "%"
906     #define STR_AMPERSAND "&"
907     #define STR_APOSTROPHE "'"
908     #define STR_LEFT_PARENTHESIS "("
909     #define STR_RIGHT_PARENTHESIS ")"
910     #define STR_ASTERISK "*"
911     #define STR_PLUS "+"
912     #define STR_COMMA ","
913     #define STR_MINUS "-"
914     #define STR_DOT "."
915     #define STR_SLASH "/"
916     #define STR_0 "0"
917     #define STR_1 "1"
918     #define STR_2 "2"
919     #define STR_3 "3"
920     #define STR_4 "4"
921     #define STR_5 "5"
922     #define STR_6 "6"
923     #define STR_7 "7"
924     #define STR_8 "8"
925     #define STR_9 "9"
926     #define STR_COLON ":"
927     #define STR_SEMICOLON ";"
928     #define STR_LESS_THAN_SIGN "<"
929     #define STR_EQUALS_SIGN "="
930     #define STR_GREATER_THAN_SIGN ">"
931     #define STR_QUESTION_MARK "?"
932     #define STR_COMMERCIAL_AT "@"
933     #define STR_A "A"
934     #define STR_B "B"
935     #define STR_C "C"
936     #define STR_D "D"
937     #define STR_E "E"
938     #define STR_F "F"
939     #define STR_G "G"
940     #define STR_H "H"
941     #define STR_I "I"
942     #define STR_J "J"
943     #define STR_K "K"
944     #define STR_L "L"
945     #define STR_M "M"
946     #define STR_N "N"
947     #define STR_O "O"
948     #define STR_P "P"
949     #define STR_Q "Q"
950     #define STR_R "R"
951     #define STR_S "S"
952     #define STR_T "T"
953     #define STR_U "U"
954     #define STR_V "V"
955     #define STR_W "W"
956     #define STR_X "X"
957     #define STR_Y "Y"
958     #define STR_Z "Z"
959     #define STR_LEFT_SQUARE_BRACKET "["
960     #define STR_BACKSLASH "\\"
961     #define STR_RIGHT_SQUARE_BRACKET "]"
962     #define STR_CIRCUMFLEX_ACCENT "^"
963     #define STR_UNDERSCORE "_"
964     #define STR_GRAVE_ACCENT "`"
965     #define STR_a "a"
966     #define STR_b "b"
967     #define STR_c "c"
968     #define STR_d "d"
969     #define STR_e "e"
970     #define STR_f "f"
971     #define STR_g "g"
972     #define STR_h "h"
973     #define STR_i "i"
974     #define STR_j "j"
975     #define STR_k "k"
976     #define STR_l "l"
977     #define STR_m "m"
978     #define STR_n "n"
979     #define STR_o "o"
980     #define STR_p "p"
981     #define STR_q "q"
982     #define STR_r "r"
983     #define STR_s "s"
984     #define STR_t "t"
985     #define STR_u "u"
986     #define STR_v "v"
987     #define STR_w "w"
988     #define STR_x "x"
989     #define STR_y "y"
990     #define STR_z "z"
991     #define STR_LEFT_CURLY_BRACKET "{"
992     #define STR_VERTICAL_LINE "|"
993     #define STR_RIGHT_CURLY_BRACKET "}"
994     #define STR_TILDE "~"
995    
996     #define STRING_ACCEPT0 "ACCEPT\0"
997     #define STRING_COMMIT0 "COMMIT\0"
998     #define STRING_F0 "F\0"
999     #define STRING_FAIL0 "FAIL\0"
1000 ph10 510 #define STRING_MARK0 "MARK\0"
1001 ph10 391 #define STRING_PRUNE0 "PRUNE\0"
1002     #define STRING_SKIP0 "SKIP\0"
1003     #define STRING_THEN "THEN"
1004    
1005     #define STRING_alpha0 "alpha\0"
1006     #define STRING_lower0 "lower\0"
1007     #define STRING_upper0 "upper\0"
1008     #define STRING_alnum0 "alnum\0"
1009     #define STRING_ascii0 "ascii\0"
1010     #define STRING_blank0 "blank\0"
1011     #define STRING_cntrl0 "cntrl\0"
1012     #define STRING_digit0 "digit\0"
1013     #define STRING_graph0 "graph\0"
1014     #define STRING_print0 "print\0"
1015     #define STRING_punct0 "punct\0"
1016     #define STRING_space0 "space\0"
1017     #define STRING_word0 "word\0"
1018     #define STRING_xdigit "xdigit"
1019    
1020     #define STRING_DEFINE "DEFINE"
1021    
1022 ph10 576 #define STRING_CR_RIGHTPAR "CR)"
1023     #define STRING_LF_RIGHTPAR "LF)"
1024     #define STRING_CRLF_RIGHTPAR "CRLF)"
1025     #define STRING_ANY_RIGHTPAR "ANY)"
1026     #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1027     #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1028     #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1029     #define STRING_UTF8_RIGHTPAR "UTF8)"
1030     #define STRING_UCP_RIGHTPAR "UCP)"
1031     #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1032 ph10 391
1033     #else /* SUPPORT_UTF8 */
1034    
1035     /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1036     works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1037     only. */
1038    
1039     #define CHAR_HT '\011'
1040     #define CHAR_VT '\013'
1041     #define CHAR_FF '\014'
1042     #define CHAR_CR '\015'
1043     #define CHAR_NL '\012'
1044     #define CHAR_BS '\010'
1045     #define CHAR_BEL '\007'
1046     #define CHAR_ESC '\033'
1047     #define CHAR_DEL '\177'
1048    
1049     #define CHAR_SPACE '\040'
1050     #define CHAR_EXCLAMATION_MARK '\041'
1051     #define CHAR_QUOTATION_MARK '\042'
1052     #define CHAR_NUMBER_SIGN '\043'
1053     #define CHAR_DOLLAR_SIGN '\044'
1054     #define CHAR_PERCENT_SIGN '\045'
1055     #define CHAR_AMPERSAND '\046'
1056     #define CHAR_APOSTROPHE '\047'
1057     #define CHAR_LEFT_PARENTHESIS '\050'
1058     #define CHAR_RIGHT_PARENTHESIS '\051'
1059     #define CHAR_ASTERISK '\052'
1060     #define CHAR_PLUS '\053'
1061     #define CHAR_COMMA '\054'
1062     #define CHAR_MINUS '\055'
1063     #define CHAR_DOT '\056'
1064     #define CHAR_SLASH '\057'
1065     #define CHAR_0 '\060'
1066     #define CHAR_1 '\061'
1067     #define CHAR_2 '\062'
1068     #define CHAR_3 '\063'
1069     #define CHAR_4 '\064'
1070     #define CHAR_5 '\065'
1071     #define CHAR_6 '\066'
1072     #define CHAR_7 '\067'
1073     #define CHAR_8 '\070'
1074     #define CHAR_9 '\071'
1075     #define CHAR_COLON '\072'
1076     #define CHAR_SEMICOLON '\073'
1077     #define CHAR_LESS_THAN_SIGN '\074'
1078     #define CHAR_EQUALS_SIGN '\075'
1079     #define CHAR_GREATER_THAN_SIGN '\076'
1080     #define CHAR_QUESTION_MARK '\077'
1081     #define CHAR_COMMERCIAL_AT '\100'
1082     #define CHAR_A '\101'
1083     #define CHAR_B '\102'
1084     #define CHAR_C '\103'
1085     #define CHAR_D '\104'
1086     #define CHAR_E '\105'
1087     #define CHAR_F '\106'
1088     #define CHAR_G '\107'
1089     #define CHAR_H '\110'
1090     #define CHAR_I '\111'
1091     #define CHAR_J '\112'
1092     #define CHAR_K '\113'
1093     #define CHAR_L '\114'
1094     #define CHAR_M '\115'
1095     #define CHAR_N '\116'
1096     #define CHAR_O '\117'
1097     #define CHAR_P '\120'
1098     #define CHAR_Q '\121'
1099     #define CHAR_R '\122'
1100     #define CHAR_S '\123'
1101     #define CHAR_T '\124'
1102     #define CHAR_U '\125'
1103     #define CHAR_V '\126'
1104     #define CHAR_W '\127'
1105     #define CHAR_X '\130'
1106     #define CHAR_Y '\131'
1107     #define CHAR_Z '\132'
1108     #define CHAR_LEFT_SQUARE_BRACKET '\133'
1109     #define CHAR_BACKSLASH '\134'
1110     #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1111     #define CHAR_CIRCUMFLEX_ACCENT '\136'
1112     #define CHAR_UNDERSCORE '\137'
1113     #define CHAR_GRAVE_ACCENT '\140'
1114     #define CHAR_a '\141'
1115     #define CHAR_b '\142'
1116     #define CHAR_c '\143'
1117     #define CHAR_d '\144'
1118     #define CHAR_e '\145'
1119     #define CHAR_f '\146'
1120     #define CHAR_g '\147'
1121     #define CHAR_h '\150'
1122     #define CHAR_i '\151'
1123     #define CHAR_j '\152'
1124     #define CHAR_k '\153'
1125     #define CHAR_l '\154'
1126     #define CHAR_m '\155'
1127     #define CHAR_n '\156'
1128     #define CHAR_o '\157'
1129     #define CHAR_p '\160'
1130     #define CHAR_q '\161'
1131     #define CHAR_r '\162'
1132     #define CHAR_s '\163'
1133     #define CHAR_t '\164'
1134     #define CHAR_u '\165'
1135     #define CHAR_v '\166'
1136     #define CHAR_w '\167'
1137     #define CHAR_x '\170'
1138     #define CHAR_y '\171'
1139     #define CHAR_z '\172'
1140     #define CHAR_LEFT_CURLY_BRACKET '\173'
1141     #define CHAR_VERTICAL_LINE '\174'
1142     #define CHAR_RIGHT_CURLY_BRACKET '\175'
1143     #define CHAR_TILDE '\176'
1144    
1145     #define STR_HT "\011"
1146     #define STR_VT "\013"
1147     #define STR_FF "\014"
1148     #define STR_CR "\015"
1149     #define STR_NL "\012"
1150     #define STR_BS "\010"
1151     #define STR_BEL "\007"
1152     #define STR_ESC "\033"
1153     #define STR_DEL "\177"
1154    
1155     #define STR_SPACE "\040"
1156     #define STR_EXCLAMATION_MARK "\041"
1157     #define STR_QUOTATION_MARK "\042"
1158     #define STR_NUMBER_SIGN "\043"
1159     #define STR_DOLLAR_SIGN "\044"
1160     #define STR_PERCENT_SIGN "\045"
1161     #define STR_AMPERSAND "\046"
1162     #define STR_APOSTROPHE "\047"
1163     #define STR_LEFT_PARENTHESIS "\050"
1164     #define STR_RIGHT_PARENTHESIS "\051"
1165     #define STR_ASTERISK "\052"
1166     #define STR_PLUS "\053"
1167     #define STR_COMMA "\054"
1168     #define STR_MINUS "\055"
1169     #define STR_DOT "\056"
1170     #define STR_SLASH "\057"
1171     #define STR_0 "\060"
1172     #define STR_1 "\061"
1173     #define STR_2 "\062"
1174     #define STR_3 "\063"
1175     #define STR_4 "\064"
1176     #define STR_5 "\065"
1177     #define STR_6 "\066"
1178     #define STR_7 "\067"
1179     #define STR_8 "\070"
1180     #define STR_9 "\071"
1181     #define STR_COLON "\072"
1182     #define STR_SEMICOLON "\073"
1183     #define STR_LESS_THAN_SIGN "\074"
1184     #define STR_EQUALS_SIGN "\075"
1185     #define STR_GREATER_THAN_SIGN "\076"
1186     #define STR_QUESTION_MARK "\077"
1187     #define STR_COMMERCIAL_AT "\100"
1188     #define STR_A "\101"
1189     #define STR_B "\102"
1190     #define STR_C "\103"
1191     #define STR_D "\104"
1192     #define STR_E "\105"
1193     #define STR_F "\106"
1194     #define STR_G "\107"
1195     #define STR_H "\110"
1196     #define STR_I "\111"
1197     #define STR_J "\112"
1198     #define STR_K "\113"
1199     #define STR_L "\114"
1200     #define STR_M "\115"
1201     #define STR_N "\116"
1202     #define STR_O "\117"
1203     #define STR_P "\120"
1204     #define STR_Q "\121"
1205     #define STR_R "\122"
1206     #define STR_S "\123"
1207     #define STR_T "\124"
1208     #define STR_U "\125"
1209     #define STR_V "\126"
1210     #define STR_W "\127"
1211     #define STR_X "\130"
1212     #define STR_Y "\131"
1213     #define STR_Z "\132"
1214     #define STR_LEFT_SQUARE_BRACKET "\133"
1215     #define STR_BACKSLASH "\134"
1216     #define STR_RIGHT_SQUARE_BRACKET "\135"
1217     #define STR_CIRCUMFLEX_ACCENT "\136"
1218     #define STR_UNDERSCORE "\137"
1219     #define STR_GRAVE_ACCENT "\140"
1220     #define STR_a "\141"
1221     #define STR_b "\142"
1222     #define STR_c "\143"
1223     #define STR_d "\144"
1224     #define STR_e "\145"
1225     #define STR_f "\146"
1226     #define STR_g "\147"
1227     #define STR_h "\150"
1228     #define STR_i "\151"
1229     #define STR_j "\152"
1230     #define STR_k "\153"
1231     #define STR_l "\154"
1232     #define STR_m "\155"
1233     #define STR_n "\156"
1234     #define STR_o "\157"
1235     #define STR_p "\160"
1236     #define STR_q "\161"
1237     #define STR_r "\162"
1238     #define STR_s "\163"
1239     #define STR_t "\164"
1240     #define STR_u "\165"
1241     #define STR_v "\166"
1242     #define STR_w "\167"
1243     #define STR_x "\170"
1244     #define STR_y "\171"
1245     #define STR_z "\172"
1246     #define STR_LEFT_CURLY_BRACKET "\173"
1247     #define STR_VERTICAL_LINE "\174"
1248     #define STR_RIGHT_CURLY_BRACKET "\175"
1249     #define STR_TILDE "\176"
1250    
1251     #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1252     #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1253     #define STRING_F0 STR_F "\0"
1254     #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1255 ph10 510 #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1256 ph10 391 #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1257     #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1258     #define STRING_THEN STR_T STR_H STR_E STR_N
1259    
1260     #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1261     #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1262     #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1263     #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1264     #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1265     #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1266     #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1267     #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1268     #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1269     #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1270     #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1271     #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1272     #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1273     #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1274    
1275     #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1276    
1277 ph10 576 #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1278     #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1279     #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1280     #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1281     #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1282     #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
1283     #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
1284     #define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1285     #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1286     #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
1287 ph10 391
1288     #endif /* SUPPORT_UTF8 */
1289    
1290 nigel 93 /* Escape items that are just an encoding of a particular data value. */
1291 nigel 77
1292     #ifndef ESC_e
1293 ph10 391 #define ESC_e CHAR_ESC
1294 nigel 77 #endif
1295    
1296     #ifndef ESC_f
1297 ph10 391 #define ESC_f CHAR_FF
1298 nigel 77 #endif
1299    
1300     #ifndef ESC_n
1301 ph10 391 #define ESC_n CHAR_NL
1302 nigel 77 #endif
1303    
1304     #ifndef ESC_r
1305 ph10 391 #define ESC_r CHAR_CR
1306 nigel 77 #endif
1307    
1308     /* We can't officially use ESC_t because it is a POSIX reserved identifier
1309     (presumably because of all the others like size_t). */
1310    
1311     #ifndef ESC_tee
1312 ph10 391 #define ESC_tee CHAR_HT
1313 nigel 77 #endif
1314    
1315 nigel 87 /* Codes for different types of Unicode property */
1316    
1317     #define PT_ANY 0 /* Any property - matches all chars */
1318     #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1319 ph10 517 #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1320     #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1321 nigel 87 #define PT_SC 4 /* Script (e.g. Han) */
1322 ph10 517 #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1323     #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1324     #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1325     #define PT_WORD 8 /* Word - L plus N plus underscore */
1326 nigel 87
1327     /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1328     contain UTF-8 characters with values greater than 255. */
1329    
1330     #define XCL_NOT 0x01 /* Flag: this is a negative class */
1331     #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1332    
1333     #define XCL_END 0 /* Marks end of individual items */
1334     #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1335     #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1336     #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1337     #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1338    
1339 nigel 77 /* These are escaped items that aren't just an encoding of a particular data
1340     value such as \n. They must have non-zero values, as check_escape() returns
1341     their negation. Also, they must appear in the same order as in the opcode
1342 ph10 514 definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1343     corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1344 ph10 754 used for [^] in JavaScript compatibility mode, and for \C in non-utf8 mode. In
1345     non-DOTALL mode, "." behaves like \N.
1346 nigel 77
1347 ph10 518 The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1348     when PCRE_UCP is set, when replacement of \d etc by \p sequences is required.
1349     They must be contiguous, and remain in order so that the replacements can be
1350     looked up from a table.
1351    
1352 ph10 341 The final escape must be ESC_REF as subsequent values are used for
1353     backreferences (\1, \2, \3, etc). There are two tests in the code for an escape
1354     greater than ESC_b and less than ESC_Z to detect the types that may be
1355     repeated. These are the types that consume characters. If any new escapes are
1356     put in between that don't consume a character, that code will have to change.
1357     */
1358    
1359 ph10 172 enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1360 ph10 514 ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1361 ph10 535 ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1362 ph10 518 ESC_E, ESC_Q, ESC_g, ESC_k,
1363 ph10 535 ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu,
1364 ph10 341 ESC_REF };
1365 nigel 77
1366 ph10 210 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1367 nigel 77 OP_EOD must correspond in order to the list of escapes immediately above.
1368    
1369 nigel 93 *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1370 ph10 462 that follow must also be updated to match. There are also tables called
1371     "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1372 nigel 93
1373 nigel 77 enum {
1374     OP_END, /* 0 End of pattern */
1375    
1376     /* Values corresponding to backslashed metacharacters */
1377    
1378     OP_SOD, /* 1 Start of data: \A */
1379     OP_SOM, /* 2 Start of match (subject + offset): \G */
1380 ph10 172 OP_SET_SOM, /* 3 Set start of match (\K) */
1381 ph10 168 OP_NOT_WORD_BOUNDARY, /* 4 \B */
1382     OP_WORD_BOUNDARY, /* 5 \b */
1383     OP_NOT_DIGIT, /* 6 \D */
1384     OP_DIGIT, /* 7 \d */
1385     OP_NOT_WHITESPACE, /* 8 \S */
1386     OP_WHITESPACE, /* 9 \s */
1387     OP_NOT_WORDCHAR, /* 10 \W */
1388     OP_WORDCHAR, /* 11 \w */
1389 ph10 602
1390 ph10 514 OP_ANY, /* 12 Match any character except newline */
1391     OP_ALLANY, /* 13 Match any character */
1392 ph10 341 OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1393     OP_NOTPROP, /* 15 \P (not Unicode property) */
1394     OP_PROP, /* 16 \p (Unicode property) */
1395     OP_ANYNL, /* 17 \R (any newline sequence) */
1396     OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1397     OP_HSPACE, /* 19 \h (horizontal whitespace) */
1398     OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1399     OP_VSPACE, /* 21 \v (vertical whitespace) */
1400     OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1401     OP_EODN, /* 23 End of data or \n at end of data: \Z. */
1402     OP_EOD, /* 24 End of data: \z */
1403 nigel 77
1404 ph10 602 OP_CIRC, /* 25 Start of line - not multiline */
1405     OP_CIRCM, /* 26 Start of line - multiline */
1406     OP_DOLL, /* 27 End of line - not multiline */
1407     OP_DOLLM, /* 28 End of line - multiline */
1408     OP_CHAR, /* 29 Match one character, casefully */
1409     OP_CHARI, /* 30 Match one character, caselessly */
1410     OP_NOT, /* 31 Match one character, not the given one, casefully */
1411     OP_NOTI, /* 32 Match one character, not the given one, caselessly */
1412 nigel 77
1413 ph10 602 /* The following sets of 13 opcodes must always be kept in step because
1414     the offset from the first one is used to generate the others. */
1415 ph10 604
1416 ph10 602 /**** Single characters, caseful, must precede the caseless ones ****/
1417 nigel 77
1418 ph10 602 OP_STAR, /* 33 The maximizing and minimizing versions of */
1419     OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
1420     OP_PLUS, /* 35 the minimizing one second. */
1421     OP_MINPLUS, /* 36 */
1422     OP_QUERY, /* 37 */
1423     OP_MINQUERY, /* 38 */
1424 nigel 77
1425 ph10 602 OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
1426     OP_MINUPTO, /* 40 */
1427     OP_EXACT, /* 41 Exactly n matches */
1428 nigel 77
1429 ph10 602 OP_POSSTAR, /* 42 Possessified star, caseful */
1430     OP_POSPLUS, /* 43 Possessified plus, caseful */
1431     OP_POSQUERY, /* 44 Posesssified query, caseful */
1432     OP_POSUPTO, /* 45 Possessified upto, caseful */
1433 nigel 77
1434 ph10 602 /**** Single characters, caseless, must follow the caseful ones */
1435 ph10 604
1436 ph10 602 OP_STARI, /* 46 */
1437     OP_MINSTARI, /* 47 */
1438     OP_PLUSI, /* 48 */
1439     OP_MINPLUSI, /* 49 */
1440     OP_QUERYI, /* 50 */
1441     OP_MINQUERYI, /* 51 */
1442 nigel 93
1443 ph10 602 OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
1444     OP_MINUPTOI, /* 53 */
1445     OP_EXACTI, /* 54 */
1446 nigel 93
1447 ph10 602 OP_POSSTARI, /* 55 Possessified star, caseless */
1448     OP_POSPLUSI, /* 56 Possessified plus, caseless */
1449     OP_POSQUERYI, /* 57 Posesssified query, caseless */
1450     OP_POSUPTOI, /* 58 Possessified upto, caseless */
1451 nigel 93
1452 ph10 602 /**** The negated ones must follow the non-negated ones, and match them ****/
1453     /**** Negated single character, caseful; must precede the caseless ones ****/
1454 nigel 93
1455 ph10 602 OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
1456     OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
1457     OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
1458     OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
1459     OP_NOTQUERY, /* 63 */
1460     OP_NOTMINQUERY, /* 64 */
1461 nigel 93
1462 ph10 602 OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
1463     OP_NOTMINUPTO, /* 66 */
1464     OP_NOTEXACT, /* 67 Exactly n matches */
1465 nigel 93
1466 ph10 602 OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
1467     OP_NOTPOSPLUS, /* 69 */
1468     OP_NOTPOSQUERY, /* 70 */
1469     OP_NOTPOSUPTO, /* 71 */
1470 nigel 77
1471 ph10 602 /**** Negated single character, caseless; must follow the caseful ones ****/
1472 ph10 604
1473 ph10 602 OP_NOTSTARI, /* 72 */
1474     OP_NOTMINSTARI, /* 73 */
1475     OP_NOTPLUSI, /* 74 */
1476     OP_NOTMINPLUSI, /* 75 */
1477     OP_NOTQUERYI, /* 76 */
1478     OP_NOTMINQUERYI, /* 77 */
1479 nigel 77
1480 ph10 602 OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
1481     OP_NOTMINUPTOI, /* 79 */
1482     OP_NOTEXACTI, /* 80 Exactly n matches */
1483 nigel 77
1484 ph10 602 OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
1485     OP_NOTPOSPLUSI, /* 82 */
1486     OP_NOTPOSQUERYI, /* 83 */
1487     OP_NOTPOSUPTOI, /* 84 */
1488 nigel 77
1489 ph10 602 /**** Character types ****/
1490 ph10 604
1491 ph10 602 OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
1492     OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
1493     OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
1494     OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
1495     OP_TYPEQUERY, /* 89 */
1496     OP_TYPEMINQUERY, /* 90 */
1497    
1498     OP_TYPEUPTO, /* 91 From 0 to n matches */
1499     OP_TYPEMINUPTO, /* 92 */
1500     OP_TYPEEXACT, /* 93 Exactly n matches */
1501    
1502     OP_TYPEPOSSTAR, /* 94 Possessified versions */
1503     OP_TYPEPOSPLUS, /* 95 */
1504     OP_TYPEPOSQUERY, /* 96 */
1505     OP_TYPEPOSUPTO, /* 97 */
1506    
1507     /* These are used for character classes and back references; only the
1508 ph10 604 first six are the same as the sets above. */
1509 ph10 602
1510     OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
1511     OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
1512     OP_CRPLUS, /* 100 the minimizing one second. These codes must */
1513     OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
1514     OP_CRQUERY, /* 102 */
1515     OP_CRMINQUERY, /* 103 */
1516    
1517     OP_CRRANGE, /* 104 These are different to the three sets above. */
1518     OP_CRMINRANGE, /* 105 */
1519    
1520     /* End of quantifier opcodes */
1521    
1522     OP_CLASS, /* 106 Match a character class, chars < 256 only */
1523     OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
1524     class - the difference is relevant only when a
1525     UTF-8 character > 255 is encountered. */
1526     OP_XCLASS, /* 108 Extended class for handling UTF-8 chars within the
1527     class. This does both positive and negative. */
1528     OP_REF, /* 109 Match a back reference, casefully */
1529     OP_REFI, /* 110 Match a back reference, caselessly */
1530     OP_RECURSE, /* 111 Match a numbered subpattern (possibly recursive) */
1531     OP_CALLOUT, /* 112 Call out to external function if provided */
1532    
1533     OP_ALT, /* 113 Start of alternation */
1534     OP_KET, /* 114 End of group that doesn't have an unbounded repeat */
1535     OP_KETRMAX, /* 115 These two must remain together and in this */
1536     OP_KETRMIN, /* 116 order. They are for groups the repeat for ever. */
1537 ph10 604 OP_KETRPOS, /* 117 Possessive unlimited repeat. */
1538 ph10 602
1539 ph10 613 /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
1540     asserts must remain in order. */
1541 nigel 77
1542 ph10 637 OP_REVERSE, /* 118 Move pointer back - used in lookbehind assertions */
1543     OP_ASSERT, /* 119 Positive lookahead */
1544     OP_ASSERT_NOT, /* 120 Negative lookahead */
1545     OP_ASSERTBACK, /* 121 Positive lookbehind */
1546     OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
1547 nigel 77
1548 ph10 723 /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
1549     after the assertions, with ONCE first, as there's a test for >= ONCE for a
1550     subpattern that isn't an assertion. The POS versions must immediately follow
1551     the non-POS versions in each case. */
1552 nigel 77
1553 ph10 723 OP_ONCE, /* 123 Atomic group, contains captures */
1554 ph10 733 OP_ONCE_NC, /* 124 Atomic group containing no captures */
1555 ph10 723 OP_BRA, /* 125 Start of non-capturing bracket */
1556     OP_BRAPOS, /* 126 Ditto, with unlimited, possessive repeat */
1557     OP_CBRA, /* 127 Start of capturing bracket */
1558     OP_CBRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
1559     OP_COND, /* 129 Conditional group */
1560 nigel 77
1561 ph10 604 /* These five must follow the previous five, in the same order. There's a
1562 nigel 93 check for >= SBRA to distinguish the two sets. */
1563 nigel 77
1564 ph10 723 OP_SBRA, /* 130 Start of non-capturing bracket, check empty */
1565     OP_SBRAPOS, /* 131 Ditto, with unlimited, possessive repeat */
1566     OP_SCBRA, /* 132 Start of capturing bracket, check empty */
1567     OP_SCBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
1568     OP_SCOND, /* 134 Conditional group, check empty */
1569 nigel 77
1570 ph10 459 /* The next two pairs must (respectively) be kept together. */
1571 ph10 461
1572 ph10 723 OP_CREF, /* 135 Used to hold a capture number as condition */
1573     OP_NCREF, /* 136 Same, but generated by a name reference*/
1574     OP_RREF, /* 137 Used to hold a recursion number as condition */
1575     OP_NRREF, /* 138 Same, but generated by a name reference*/
1576     OP_DEF, /* 139 The DEFINE condition */
1577 nigel 93
1578 ph10 723 OP_BRAZERO, /* 140 These two must remain together and in this */
1579     OP_BRAMINZERO, /* 141 order. */
1580     OP_BRAPOSZERO, /* 142 */
1581 ph10 210
1582     /* These are backtracking control verbs */
1583    
1584 ph10 723 OP_MARK, /* 143 always has an argument */
1585     OP_PRUNE, /* 144 */
1586     OP_PRUNE_ARG, /* 145 same, but with argument */
1587     OP_SKIP, /* 146 */
1588     OP_SKIP_ARG, /* 147 same, but with argument */
1589     OP_THEN, /* 148 */
1590     OP_THEN_ARG, /* 149 same, but with argument */
1591     OP_COMMIT, /* 150 */
1592 ph10 210
1593     /* These are forced failure and success verbs */
1594    
1595 ph10 723 OP_FAIL, /* 151 */
1596     OP_ACCEPT, /* 152 */
1597     OP_ASSERT_ACCEPT, /* 153 Used inside assertions */
1598     OP_CLOSE, /* 154 Used before OP_ACCEPT to close open captures */
1599 ph10 345
1600 ph10 335 /* This is used to skip a subpattern with a {0} quantifier */
1601 ph10 345
1602 ph10 723 OP_SKIPZERO, /* 155 */
1603 ph10 498
1604     /* This is not an opcode, but is used to check that tables indexed by opcode
1605     are the correct length, in order to catch updating errors - there have been
1606     some in the past. */
1607    
1608     OP_TABLE_LENGTH
1609 nigel 77 };
1610    
1611 ph10 462 /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1612     definitions that follow must also be updated to match. There are also tables
1613 ph10 510 called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1614 nigel 77
1615 ph10 462
1616 nigel 77 /* This macro defines textual names for all the opcodes. These are used only
1617 ph10 602 for debugging, and some of them are only partial names. The macro is referenced
1618 ph10 604 only in pcre_printint.c, which fills out the full names in many cases (and in
1619 ph10 602 some cases doesn't actually use these names at all). */
1620 nigel 77
1621     #define OP_NAME_LIST \
1622 ph10 168 "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
1623 ph10 341 "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
1624 ph10 178 "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
1625     "extuni", "\\Z", "\\z", \
1626 ph10 602 "^", "^", "$", "$", "char", "chari", "not", "noti", \
1627     "*", "*?", "+", "+?", "?", "??", \
1628     "{", "{", "{", \
1629 nigel 93 "*+","++", "?+", "{", \
1630 ph10 602 "*", "*?", "+", "+?", "?", "??", \
1631     "{", "{", "{", \
1632 nigel 93 "*+","++", "?+", "{", \
1633 ph10 602 "*", "*?", "+", "+?", "?", "??", \
1634     "{", "{", "{", \
1635     "*+","++", "?+", "{", \
1636     "*", "*?", "+", "+?", "?", "??", \
1637     "{", "{", "{", \
1638     "*+","++", "?+", "{", \
1639 nigel 77 "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
1640 nigel 93 "*+","++", "?+", "{", \
1641 nigel 77 "*", "*?", "+", "+?", "?", "??", "{", "{", \
1642 ph10 602 "class", "nclass", "xclass", "Ref", "Refi", \
1643     "Recurse", "Callout", \
1644 ph10 604 "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
1645 ph10 637 "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
1646 ph10 723 "Once", "Once_NC", \
1647 ph10 604 "Bra", "BraPos", "CBra", "CBraPos", \
1648     "Cond", \
1649     "SBra", "SBraPos", "SCBra", "SCBraPos", \
1650     "SCond", \
1651 ph10 459 "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
1652 ph10 604 "Brazero", "Braminzero", "Braposzero", \
1653 ph10 510 "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
1654 ph10 613 "*THEN", "*THEN", "*COMMIT", "*FAIL", \
1655     "*ACCEPT", "*ASSERT_ACCEPT", \
1656 ph10 447 "Close", "Skip zero"
1657 nigel 77
1658    
1659     /* This macro defines the length of fixed length operations in the compiled
1660     regex. The lengths are used when searching for specific things, and also in the
1661     debugging printing of a compiled regex. We use a macro so that it can be
1662     defined close to the definitions of the opcodes themselves.
1663    
1664     As things have been extended, some of these are no longer fixed lenths, but are
1665     minima instead. For example, the length of a single-character repeat may vary
1666     in UTF-8 mode. The code that uses this table must know about such things. */
1667    
1668     #define OP_LENGTHS \
1669     1, /* End */ \
1670 ph10 168 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
1671     1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
1672 ph10 341 1, 1, 1, /* Any, AllAny, Anybyte */ \
1673 ph10 498 3, 3, /* \P, \p */ \
1674 ph10 178 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
1675 ph10 498 1, /* \X */ \
1676 ph10 602 1, 1, 1, 1, 1, 1, /* \Z, \z, ^, ^M, $, $M */ \
1677 nigel 77 2, /* Char - the minimum length */ \
1678 ph10 602 2, /* Chari - the minimum length */ \
1679 nigel 77 2, /* not */ \
1680 ph10 602 2, /* noti */ \
1681     /* Positive single-char repeats ** These are */ \
1682     2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
1683     4, 4, 4, /* upto, minupto, exact ** mode */ \
1684 nigel 93 2, 2, 2, 4, /* *+, ++, ?+, upto+ */ \
1685 ph10 602 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
1686     4, 4, 4, /* upto I, minupto I, exact I */ \
1687     2, 2, 2, 4, /* *+I, ++I, ?+I, upto+I */ \
1688 nigel 77 /* Negative single-char repeats - only for chars < 256 */ \
1689     2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
1690     4, 4, 4, /* NOT upto, minupto, exact */ \
1691 ph10 602 2, 2, 2, 4, /* Possessive NOT *, +, ?, upto */ \
1692     2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
1693     4, 4, 4, /* NOT upto I, minupto I, exact I */ \
1694     2, 2, 2, 4, /* Possessive NOT *I, +I, ?I, upto I */ \
1695 nigel 77 /* Positive type repeats */ \
1696     2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
1697     4, 4, 4, /* Type upto, minupto, exact */ \
1698 nigel 93 2, 2, 2, 4, /* Possessive *+, ++, ?+, upto+ */ \
1699 nigel 77 /* Character class & ref repeats */ \
1700     1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
1701     5, 5, /* CRRANGE, CRMINRANGE */ \
1702     33, /* CLASS */ \
1703     33, /* NCLASS */ \
1704     0, /* XCLASS - variable length */ \
1705     3, /* REF */ \
1706 ph10 602 3, /* REFI */ \
1707 nigel 77 1+LINK_SIZE, /* RECURSE */ \
1708     2+2*LINK_SIZE, /* CALLOUT */ \
1709     1+LINK_SIZE, /* Alt */ \
1710     1+LINK_SIZE, /* Ket */ \
1711     1+LINK_SIZE, /* KetRmax */ \
1712     1+LINK_SIZE, /* KetRmin */ \
1713 ph10 604 1+LINK_SIZE, /* KetRpos */ \
1714 ph10 637 1+LINK_SIZE, /* Reverse */ \
1715 nigel 77 1+LINK_SIZE, /* Assert */ \
1716     1+LINK_SIZE, /* Assert not */ \
1717     1+LINK_SIZE, /* Assert behind */ \
1718     1+LINK_SIZE, /* Assert behind not */ \
1719 nigel 93 1+LINK_SIZE, /* ONCE */ \
1720 ph10 723 1+LINK_SIZE, /* ONCE_NC */ \
1721 nigel 93 1+LINK_SIZE, /* BRA */ \
1722 ph10 604 1+LINK_SIZE, /* BRAPOS */ \
1723 nigel 93 3+LINK_SIZE, /* CBRA */ \
1724 ph10 604 3+LINK_SIZE, /* CBRAPOS */ \
1725 nigel 77 1+LINK_SIZE, /* COND */ \
1726 nigel 93 1+LINK_SIZE, /* SBRA */ \
1727 ph10 604 1+LINK_SIZE, /* SBRAPOS */ \
1728 nigel 93 3+LINK_SIZE, /* SCBRA */ \
1729 ph10 604 3+LINK_SIZE, /* SCBRAPOS */ \
1730 nigel 93 1+LINK_SIZE, /* SCOND */ \
1731 ph10 459 3, 3, /* CREF, NCREF */ \
1732     3, 3, /* RREF, NRREF */ \
1733 nigel 93 1, /* DEF */ \
1734 ph10 604 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
1735 ph10 550 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
1736     1, 3, /* SKIP, SKIP_ARG */ \
1737 ph10 716 1, 3, /* THEN, THEN_ARG */ \
1738 ph10 613 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
1739     3, 1 /* CLOSE, SKIPZERO */
1740 nigel 77
1741 ph10 459 /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
1742     condition. */
1743 nigel 77
1744 nigel 93 #define RREF_ANY 0xffff
1745 nigel 77
1746 ph10 499 /* Compile time error code numbers. They are given names so that they can more
1747 ph10 507 easily be tracked. When a new number is added, the table called eint in
1748 ph10 499 pcreposix.c must be updated. */
1749 nigel 77
1750     enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
1751     ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
1752     ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
1753     ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
1754 nigel 91 ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
1755 ph10 210 ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
1756 ph10 629 ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
1757 ph10 747 ERR70, ERRCOUNT };
1758 nigel 77
1759     /* The real format of the start of the pcre block; the index of names and the
1760     code vector run on as long as necessary after the end. We store an explicit
1761     offset to the name table so that if a regex is compiled on one host, saved, and
1762     then run on another where the size of pointers is different, all might still
1763     be well. For the case of compiled-on-4 and run-on-8, we include an extra
1764     pointer that is always NULL. For future-proofing, a few dummy fields were
1765     originally included - even though you can never get this planning right - but
1766     there is only one left now.
1767    
1768     NOTE NOTE NOTE:
1769     Because people can now save and re-use compiled patterns, any additions to this
1770     structure should be made at the end, and something earlier (e.g. a new
1771     flag in the options or one of the dummy fields) should indicate that the new
1772     fields are present. Currently PCRE always sets the dummy fields to zero.
1773 ph10 455 NOTE NOTE NOTE
1774 nigel 77 */
1775    
1776     typedef struct real_pcre {
1777     pcre_uint32 magic_number;
1778     pcre_uint32 size; /* Total that was malloced */
1779 ph10 230 pcre_uint32 options; /* Public options */
1780     pcre_uint16 flags; /* Private flags */
1781     pcre_uint16 dummy1; /* For future use */
1782 nigel 77 pcre_uint16 top_bracket;
1783     pcre_uint16 top_backref;
1784     pcre_uint16 first_byte;
1785     pcre_uint16 req_byte;
1786     pcre_uint16 name_table_offset; /* Offset to name table that follows */
1787     pcre_uint16 name_entry_size; /* Size of any name items */
1788     pcre_uint16 name_count; /* Number of name items */
1789     pcre_uint16 ref_count; /* Reference count */
1790    
1791 ph10 756 const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
1792     const pcre_uint8 *nullpad; /* NULL padding */
1793 nigel 77 } real_pcre;
1794    
1795     /* The format of the block used to store data from pcre_study(). The same
1796     remark (see NOTE above) about extending this structure applies. */
1797    
1798     typedef struct pcre_study_data {
1799     pcre_uint32 size; /* Total that was malloced */
1800 ph10 455 pcre_uint32 flags; /* Private flags */
1801 ph10 756 pcre_uint8 start_bits[32]; /* Starting char bits */
1802 ph10 459 pcre_uint32 minlength; /* Minimum subject length */
1803 nigel 77 } pcre_study_data;
1804    
1805 ph10 459 /* Structure for building a chain of open capturing subpatterns during
1806     compiling, so that instructions to close them can be compiled when (*ACCEPT) is
1807 ph10 488 encountered. This is also used to identify subpatterns that contain recursive
1808     back references to themselves, so that they can be made atomic. */
1809 ph10 447
1810     typedef struct open_capitem {
1811     struct open_capitem *next; /* Chain link */
1812     pcre_uint16 number; /* Capture number */
1813 ph10 488 pcre_uint16 flag; /* Set TRUE if recursive back ref */
1814 ph10 459 } open_capitem;
1815 ph10 447
1816 nigel 77 /* Structure for passing "static" information around between the functions
1817     doing the compiling, so that they are thread-safe. */
1818    
1819     typedef struct compile_data {
1820 ph10 756 const pcre_uint8 *lcc; /* Points to lower casing table */
1821     const pcre_uint8 *fcc; /* Points to case-flipping table */
1822     const pcre_uint8 *cbits; /* Points to character type table */
1823     const pcre_uint8 *ctypes; /* Points to table of type maps */
1824     const pcre_uchar *start_workspace;/* The start of working space */
1825     const pcre_uchar *start_code; /* The start of the compiled code */
1826     const pcre_uchar *start_pattern; /* The start of the pattern */
1827     const pcre_uchar *end_pattern; /* The end of the pattern */
1828     open_capitem *open_caps; /* Chain of open capture items */
1829     pcre_uchar *hwm; /* High watermark of workspace */
1830     pcre_uchar *name_table; /* The name/number table */
1831     int names_found; /* Number of entries so far */
1832     int name_entry_size; /* Size of each entry */
1833     int bracount; /* Count of capturing parens as we compile */
1834     int final_bracount; /* Saved value after first pass */
1835     int top_backref; /* Maximum back reference */
1836     unsigned int backref_map; /* Bitmap of low back refs */
1837     int assert_depth; /* Depth of nested assertions */
1838     int external_options; /* External (initial) options */
1839     int external_flags; /* External flag bits to be set */
1840     int req_varyopt; /* "After variable item" flag for reqbyte */
1841     BOOL had_accept; /* (*ACCEPT) encountered */
1842     BOOL check_lookbehind; /* Lookbehinds need later checking */
1843     int nltype; /* Newline type */
1844     int nllen; /* Newline string length */
1845     pcre_uchar nl[4]; /* Newline string when fixed length */
1846 nigel 77 } compile_data;
1847    
1848     /* Structure for maintaining a chain of pointers to the currently incomplete
1849 ph10 642 branches, for testing for left recursion while compiling. */
1850 nigel 77
1851     typedef struct branch_chain {
1852     struct branch_chain *outer;
1853 ph10 756 pcre_uchar *current_branch;
1854 nigel 77 } branch_chain;
1855    
1856     /* Structure for items in a linked list that represents an explicit recursive
1857 ph10 642 call within the pattern; used by pcre_exec(). */
1858 nigel 77
1859     typedef struct recursion_info {
1860     struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
1861 ph10 618 int group_num; /* Number of group that was called */
1862     int *offset_save; /* Pointer to start of saved offsets */
1863     int saved_max; /* Number of saved offsets */
1864 ph10 756 PCRE_PUCHAR subject_position; /* Position at start of recursion */
1865 nigel 77 } recursion_info;
1866    
1867 ph10 642 /* A similar structure for pcre_dfa_exec(). */
1868    
1869     typedef struct dfa_recursion_info {
1870     struct dfa_recursion_info *prevrec;
1871     int group_num;
1872 ph10 756 PCRE_PUCHAR subject_position;
1873 ph10 642 } dfa_recursion_info;
1874    
1875 nigel 93 /* Structure for building a chain of data for holding the values of the subject
1876     pointer at the start of each subpattern, so as to detect when an empty string
1877 ph10 654 has been matched by a subpattern - to break infinite loops; used by
1878 ph10 642 pcre_exec(). */
1879 nigel 93
1880     typedef struct eptrblock {
1881     struct eptrblock *epb_prev;
1882 ph10 756 PCRE_PUCHAR epb_saved_eptr;
1883 nigel 93 } eptrblock;
1884    
1885    
1886 nigel 77 /* Structure for passing "static" information around between the functions
1887     doing traditional NFA matching, so that they are thread-safe. */
1888    
1889     typedef struct match_data {
1890 nigel 87 unsigned long int match_call_count; /* As it says */
1891     unsigned long int match_limit; /* As it says */
1892     unsigned long int match_limit_recursion; /* As it says */
1893 ph10 756 int *offset_vector; /* Offset vector */
1894     int offset_end; /* One past the end */
1895     int offset_max; /* The maximum usable for return data */
1896     int nltype; /* Newline type */
1897     int nllen; /* Newline string length */
1898     int name_count; /* Number of names in name table */
1899     int name_entry_size; /* Size of entry in names table */
1900     pcre_uchar *name_table; /* Table of names */
1901     pcre_uchar nl[4]; /* Newline string when fixed */
1902     const pcre_uint8 *lcc; /* Points to lower casing table */
1903     const pcre_uint8 *ctypes; /* Points to table of type maps */
1904     BOOL offset_overflow; /* Set if too many extractions */
1905     BOOL notbol; /* NOTBOL flag */
1906     BOOL noteol; /* NOTEOL flag */
1907     BOOL utf8; /* UTF8 flag */
1908     BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
1909     BOOL use_ucp; /* PCRE_UCP flag */
1910     BOOL endonly; /* Dollar not before final \n */
1911     BOOL notempty; /* Empty string match not wanted */
1912     BOOL notempty_atstart; /* Empty string match at start not wanted */
1913     BOOL hitend; /* Hit the end of the subject at some point */
1914     BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
1915     BOOL hasthen; /* Pattern contains (*THEN) */
1916     const pcre_uchar *start_code; /* For use when recursing */
1917     PCRE_PUCHAR start_subject; /* Start of the subject string */
1918     PCRE_PUCHAR end_subject; /* End of the subject string */
1919     PCRE_PUCHAR start_match_ptr; /* Start of matched string */
1920     PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
1921     PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
1922     int partial; /* PARTIAL options */
1923     int end_offset_top; /* Highwater mark at end of match */
1924     int capture_last; /* Most recent capture number */
1925     int start_offset; /* The start offset value */
1926     int match_function_type; /* Set for certain special calls of MATCH() */
1927     eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
1928     int eptrn; /* Next free eptrblock */
1929     recursion_info *recursive; /* Linked list of recursion data */
1930     void *callout_data; /* To pass back to callouts */
1931     const pcre_uchar *mark; /* Mark pointer to pass back */
1932     const pcre_uchar *once_target; /* Where to back up to for atomic groups */
1933 nigel 77 } match_data;
1934    
1935     /* A similar structure is used for the same purpose by the DFA matching
1936     functions. */
1937    
1938     typedef struct dfa_match_data {
1939 ph10 756 const pcre_uchar *start_code; /* Start of the compiled pattern */
1940     const pcre_uchar *start_subject ; /* Start of the subject string */
1941     const pcre_uchar *end_subject; /* End of subject string */
1942     const pcre_uchar *start_used_ptr; /* Earliest consulted character */
1943     const pcre_uint8 *tables; /* Character tables */
1944     int start_offset; /* The start offset value */
1945     int moptions; /* Match options */
1946     int poptions; /* Pattern options */
1947     int nltype; /* Newline type */
1948     int nllen; /* Newline string length */
1949     pcre_uchar nl[4]; /* Newline string when fixed */
1950     void *callout_data; /* To pass back to callouts */
1951     dfa_recursion_info *recursive; /* Linked list of recursion data */
1952 nigel 77 } dfa_match_data;
1953    
1954     /* Bit definitions for entries in the pcre_ctypes table. */
1955    
1956     #define ctype_space 0x01
1957     #define ctype_letter 0x02
1958     #define ctype_digit 0x04
1959     #define ctype_xdigit 0x08
1960 ph10 274 #define ctype_word 0x10 /* alphanumeric or '_' */
1961 nigel 77 #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
1962    
1963     /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
1964     of bits for a class map. Some classes are built by combining these tables. */
1965    
1966     #define cbit_space 0 /* [:space:] or \s */
1967     #define cbit_xdigit 32 /* [:xdigit:] */
1968     #define cbit_digit 64 /* [:digit:] or \d */
1969     #define cbit_upper 96 /* [:upper:] */
1970     #define cbit_lower 128 /* [:lower:] */
1971     #define cbit_word 160 /* [:word:] or \w */
1972     #define cbit_graph 192 /* [:graph:] */
1973     #define cbit_print 224 /* [:print:] */
1974     #define cbit_punct 256 /* [:punct:] */
1975     #define cbit_cntrl 288 /* [:cntrl:] */
1976     #define cbit_length 320 /* Length of the cbits table */
1977    
1978     /* Offsets of the various tables from the base tables pointer, and
1979     total length. */
1980    
1981     #define lcc_offset 0
1982     #define fcc_offset 256
1983     #define cbits_offset 512
1984     #define ctypes_offset (cbits_offset + cbit_length)
1985     #define tables_length (ctypes_offset + 256)
1986    
1987 zherczeg 764 /* Internal function prefix */
1988    
1989     #ifdef COMPILE_PCRE8
1990     #define PRIV(name) _pcre_##name
1991     #else
1992     #ifdef COMPILE_PCRE16
1993     #define PRIV(name) _pcre16_##name
1994     #else
1995     #error Unsupported compiling mode
1996     #endif /* COMPILE_PCRE16 */
1997     #endif /* COMPILE_PCRE8 */
1998    
1999 nigel 87 /* Layout of the UCP type table that translates property names into types and
2000 ph10 240 codes. Each entry used to point directly to a name, but to reduce the number of
2001 ph10 243 relocations in shared libraries, it now has an offset into a single string
2002 ph10 240 instead. */
2003 nigel 77
2004     typedef struct {
2005 ph10 243 pcre_uint16 name_offset;
2006 nigel 87 pcre_uint16 type;
2007     pcre_uint16 value;
2008 nigel 77 } ucp_type_table;
2009    
2010    
2011     /* Internal shared data tables. These are tables that are used by more than one
2012     of the exported public functions. They have to be "external" in the C sense,
2013     but are not part of the PCRE public API. The data for these tables is in the
2014     pcre_tables.c module. */
2015    
2016 zherczeg 764 extern const int PRIV(utf8_table1)[];
2017     extern const int PRIV(utf8_table2)[];
2018     extern const int PRIV(utf8_table3)[];
2019     extern const pcre_uint8 PRIV(utf8_table4)[];
2020 nigel 77
2021 zherczeg 764 extern const int PRIV(utf8_table1_size);
2022 ph10 667
2023 zherczeg 764 extern const char PRIV(utt_names)[];
2024     extern const ucp_type_table PRIV(utt)[];
2025     extern const int PRIV(utt_size);
2026 nigel 77
2027 zherczeg 764 extern const pcre_uint8 PRIV(default_tables)[];
2028 nigel 77
2029 zherczeg 764 extern const pcre_uint8 PRIV(OP_lengths)[];
2030 nigel 77
2031    
2032     /* Internal shared functions. These are functions that are used by more than
2033     one of the exported public functions. They have to be "external" in the C
2034     sense, but are not part of the PCRE public API. */
2035    
2036 zherczeg 763 /* String comparison functions. */
2037     #ifdef COMPILE_PCRE8
2038    
2039     #define STRCMP_UC_UC(str1, str2) \
2040     strcmp((char *)(str1), (char *)(str2))
2041     #define STRCMP_UC_C8(str1, str2) \
2042     strcmp((char *)(str1), (str2))
2043     #define STRNCMP_UC_UC(str1, str2, num) \
2044     strncmp((char *)(str1), (char *)(str2), (num))
2045     #define STRNCMP_UC_C8(str1, str2, num) \
2046     strncmp((char *)(str1), (str2), (num))
2047 zherczeg 767 #define STRLEN_UC(str) strlen((const char *)str)
2048 zherczeg 763
2049     #else
2050    
2051 zherczeg 764 extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
2052 zherczeg 763 const pcre_uchar *);
2053 zherczeg 764 extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
2054 zherczeg 763 const char *);
2055 zherczeg 764 extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
2056 zherczeg 763 const pcre_uchar *, unsigned int num);
2057 zherczeg 764 extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
2058 zherczeg 763 const char *, unsigned int num);
2059 zherczeg 764 extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
2060 zherczeg 763
2061     #define STRCMP_UC_UC(str1, str2) \
2062 zherczeg 764 PRIV(strcmp_uc_uc)((str1), (str2))
2063 zherczeg 763 #define STRCMP_UC_C8(str1, str2) \
2064 zherczeg 764 PRIV(strcmp_uc_c8)((str1), (str2))
2065 zherczeg 763 #define STRNCMP_UC_UC(str1, str2, num) \
2066 zherczeg 764 PRIV(strncmp_uc_uc)((str1), (str2), (num))
2067 zherczeg 763 #define STRNCMP_UC_C8(str1, str2, num) \
2068 zherczeg 764 PRIV(strncmp_uc_c8)((str1), (str2), (num))
2069     #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2070 zherczeg 763
2071     #endif /* COMPILE_PCRE8 */
2072    
2073 zherczeg 764 extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2074     extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2075 ph10 756 int *, BOOL);
2076 zherczeg 764 extern int PRIV(ord2utf8)(int, pcre_uint8 *);
2077     extern real_pcre *PRIV(try_flipped)(const real_pcre *, real_pcre *,
2078 ph10 756 const pcre_study_data *, pcre_study_data *);
2079 ph10 757 #ifndef COMPILE_PCRE16
2080 zherczeg 764 extern int PRIV(valid_utf8)(PCRE_PUCHAR, int, int *);
2081 ph10 757 #else
2082 zherczeg 764 extern int PRIV(valid_utf16)(PCRE_PUCHAR, int, int *);
2083 ph10 757 #endif
2084 zherczeg 764 extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2085 ph10 756 int *, BOOL);
2086 zherczeg 764 extern BOOL PRIV(xclass)(int, const pcre_uchar *);
2087 nigel 77
2088 ph10 667 #ifdef SUPPORT_JIT
2089 zherczeg 764 extern void PRIV(jit_compile)(const real_pcre *, pcre_extra *);
2090 zherczeg 767 extern int PRIV(jit_exec)(const real_pcre *, void *,
2091     const pcre_uchar *, int, int, int, int, int *, int);
2092 zherczeg 764 extern void PRIV(jit_free)(void *);
2093 ph10 667 #endif
2094 ph10 349
2095     /* Unicode character database (UCD) */
2096    
2097     typedef struct {
2098 ph10 756 pcre_uint8 script;
2099     pcre_uint8 chartype;
2100 ph10 351 pcre_int32 other_case;
2101 ph10 349 } ucd_record;
2102    
2103 zherczeg 764 extern const ucd_record PRIV(ucd_records)[];
2104     extern const pcre_uint8 PRIV(ucd_stage1)[];
2105     extern const pcre_uint16 PRIV(ucd_stage2)[];
2106     extern const int PRIV(ucp_gentype)[];
2107 ph10 667 #ifdef SUPPORT_JIT
2108 zherczeg 764 extern const int PRIV(ucp_typerange)[];
2109 ph10 667 #endif
2110 ph10 349
2111     /* UCD access macros */
2112    
2113     #define UCD_BLOCK_SIZE 128
2114 zherczeg 764 #define GET_UCD(ch) (PRIV(ucd_records) + \
2115     PRIV(ucd_stage2)[PRIV(ucd_stage1)[(ch) / UCD_BLOCK_SIZE] * \
2116 ph10 593 UCD_BLOCK_SIZE + (ch) % UCD_BLOCK_SIZE])
2117 ph10 349
2118     #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
2119     #define UCD_SCRIPT(ch) GET_UCD(ch)->script
2120 zherczeg 764 #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2121 ph10 351 #define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)
2122 ph10 349
2123 nigel 85 #endif
2124    
2125 nigel 77 /* End of pcre_internal.h */

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