Annotation of embedaddon/php/ext/pcre/pcrelib/pcre_internal.h, revision 1.1.1.2
1.1 misho 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
1.1.1.2 ! misho 10: Copyright (c) 1997-2012 University of Cambridge
1.1 misho 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
1.1.1.2 ! misho 43: functions whose names all begin with "_pcre_", "_pcre16_" or "_pcre32_"
! 44: depending on the PRIV macro. */
1.1 misho 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:
1.1.1.2 ! misho 55: /* PCRE is compiled as an 8 bit library if it is not requested otherwise. */
1.1 misho 56:
1.1.1.2 ! misho 57: #if !defined COMPILE_PCRE16 && !defined COMPILE_PCRE32
! 58: #define COMPILE_PCRE8
1.1 misho 59: #endif
60:
1.1.1.2 ! misho 61: /* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
1.1 misho 62: "configure" script ensures this, but not everybody uses "configure". */
63:
1.1.1.2 ! misho 64: #if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
! 65: #define SUPPORT_UTF 1
! 66: #endif
! 67:
! 68: /* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
! 69: reasons with existing code. */
! 70:
! 71: #if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
! 72: #define SUPPORT_UTF 1
! 73: #endif
! 74:
! 75: /* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
! 76: Until then we define it if SUPPORT_UTF is defined. */
! 77:
! 78: #if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
1.1 misho 79: #define SUPPORT_UTF8 1
80: #endif
81:
1.1.1.2 ! misho 82: /* We do not support both EBCDIC and UTF-8/16/32 at the same time. The "configure"
! 83: script prevents both being selected, but not everybody uses "configure". */
! 84:
! 85: #if defined EBCDIC && defined SUPPORT_UTF
! 86: #error The use of both EBCDIC and SUPPORT_UTF is not supported.
! 87: #endif
! 88:
1.1 misho 89: /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
90: inline, and there are *still* stupid compilers about that don't like indented
91: pre-processor statements, or at least there were when I first wrote this. After
92: all, it had only been about 10 years then...
93:
94: It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
95: be absolutely sure we get our version. */
96:
97: #undef DPRINTF
98: #ifdef PCRE_DEBUG
99: #define DPRINTF(p) printf p
100: #else
101: #define DPRINTF(p) /* Nothing */
102: #endif
103:
104:
105: /* Standard C headers plus the external interface definition. The only time
106: setjmp and stdarg are used is when NO_RECURSE is set. */
107:
108: #include <ctype.h>
109: #include <limits.h>
110: #include <stddef.h>
111: #include <stdio.h>
112: #include <stdlib.h>
113: #include <string.h>
114:
1.1.1.2 ! misho 115: /* Valgrind (memcheck) support */
! 116:
! 117: #ifdef SUPPORT_VALGRIND
! 118: #include <valgrind/memcheck.h>
! 119: #endif
! 120:
1.1 misho 121: /* When compiling a DLL for Windows, the exported symbols have to be declared
122: using some MS magic. I found some useful information on this web page:
123: http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
124: information there, using __declspec(dllexport) without "extern" we have a
125: definition; with "extern" we have a declaration. The settings here override the
126: setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
127: which is all that is needed for applications (they just import the symbols). We
128: use:
129:
130: PCRE_EXP_DECL for declarations
131: PCRE_EXP_DEFN for definitions of exported functions
132: PCRE_EXP_DATA_DEFN for definitions of exported variables
133:
134: The reason for the two DEFN macros is that in non-Windows environments, one
135: does not want to have "extern" before variable definitions because it leads to
136: compiler warnings. So we distinguish between functions and variables. In
137: Windows, the two should always be the same.
138:
139: The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
140: which is an application, but needs to import this file in order to "peek" at
141: internals, can #include pcre.h first to get an application's-eye view.
142:
143: In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
144: special-purpose environments) might want to stick other stuff in front of
145: exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
146: PCRE_EXP_DATA_DEFN only if they are not already set. */
147:
148: #ifndef PCRE_EXP_DECL
149: # ifdef _WIN32
150: # ifndef PCRE_STATIC
151: # define PCRE_EXP_DECL extern __declspec(dllexport)
152: # define PCRE_EXP_DEFN __declspec(dllexport)
153: # define PCRE_EXP_DATA_DEFN __declspec(dllexport)
154: # else
155: # define PCRE_EXP_DECL extern
156: # define PCRE_EXP_DEFN
157: # define PCRE_EXP_DATA_DEFN
158: # endif
159: # else
160: # ifdef __cplusplus
161: # define PCRE_EXP_DECL extern "C"
162: # else
163: # define PCRE_EXP_DECL extern
164: # endif
165: # ifndef PCRE_EXP_DEFN
166: # define PCRE_EXP_DEFN PCRE_EXP_DECL
167: # endif
168: # ifndef PCRE_EXP_DATA_DEFN
169: # define PCRE_EXP_DATA_DEFN
170: # endif
171: # endif
172: #endif
173:
174: /* When compiling with the MSVC compiler, it is sometimes necessary to include
175: a "calling convention" before exported function names. (This is secondhand
176: information; I know nothing about MSVC myself). For example, something like
177:
178: void __cdecl function(....)
179:
180: might be needed. In order so make this easy, all the exported functions have
181: PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
182: set, we ensure here that it has no effect. */
183:
184: #ifndef PCRE_CALL_CONVENTION
185: #define PCRE_CALL_CONVENTION
186: #endif
187:
1.1.1.2 ! misho 188: /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
1.1 misho 189: cannot determine these outside the compilation (e.g. by running a program as
190: part of "configure") because PCRE is often cross-compiled for use on other
191: systems. Instead we make use of the maximum sizes that are available at
192: preprocessor time in standard C environments. */
193:
1.1.1.2 ! misho 194: typedef unsigned char pcre_uint8;
! 195:
1.1 misho 196: #if USHRT_MAX == 65535
197: typedef unsigned short pcre_uint16;
198: typedef short pcre_int16;
199: #elif UINT_MAX == 65535
200: typedef unsigned int pcre_uint16;
201: typedef int pcre_int16;
202: #else
1.1.1.2 ! misho 203: # error Cannot determine a type for 16-bit unsigned integers
1.1 misho 204: #endif
205:
206: #if UINT_MAX == 4294967295
207: typedef unsigned int pcre_uint32;
208: typedef int pcre_int32;
209: #elif ULONG_MAX == 4294967295
210: typedef unsigned long int pcre_uint32;
211: typedef long int pcre_int32;
212: #else
1.1.1.2 ! misho 213: # error Cannot determine a type for 32-bit unsigned integers
1.1 misho 214: #endif
215:
216: /* When checking for integer overflow in pcre_compile(), we need to handle
217: large integers. If a 64-bit integer type is available, we can use that.
218: Otherwise we have to cast to double, which of course requires floating point
219: arithmetic. Handle this by defining a macro for the appropriate type. If
220: stdint.h is available, include it; it may define INT64_MAX. Systems that do not
221: have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
222: by "configure". */
223:
224: #ifdef PHP_WIN32
225: #include "win32/php_stdint.h"
226: #elif HAVE_STDINT_H
227: #include <stdint.h>
228: #elif HAVE_INTTYPES_H
229: #include <inttypes.h>
230: #endif
231:
232: #if defined INT64_MAX || defined int64_t
233: #define INT64_OR_DOUBLE int64_t
234: #else
235: #define INT64_OR_DOUBLE double
236: #endif
237:
238: /* All character handling must be done as unsigned characters. Otherwise there
239: are problems with top-bit-set characters and functions such as isspace().
1.1.1.2 ! misho 240: However, we leave the interface to the outside world as char * or short *,
! 241: because that should make things easier for callers. This character type is
! 242: called pcre_uchar.
! 243:
! 244: The IN_UCHARS macro multiply its argument with the byte size of the current
! 245: pcre_uchar type. Useful for memcpy and such operations, whose require the
! 246: byte size of their input/output buffers.
! 247:
! 248: The MAX_255 macro checks whether its pcre_uchar input is less than 256.
! 249:
! 250: The TABLE_GET macro is designed for accessing elements of tables whose contain
! 251: exactly 256 items. When the character is able to contain more than 256
! 252: items, some check is needed before accessing these tables.
! 253: */
! 254:
! 255: #if defined COMPILE_PCRE8
1.1 misho 256:
1.1.1.2 ! misho 257: typedef unsigned char pcre_uchar;
! 258: #define IN_UCHARS(x) (x)
! 259: #define MAX_255(c) 1
! 260: #define TABLE_GET(c, table, default) ((table)[c])
! 261:
! 262: #elif defined COMPILE_PCRE16
! 263:
! 264: #if USHRT_MAX != 65535
! 265: /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
! 266: pcre.h(.in) and disable (comment out) this message. */
! 267: #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
! 268: #endif
! 269:
! 270: typedef pcre_uint16 pcre_uchar;
! 271: #define UCHAR_SHIFT (1)
! 272: #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
! 273: #define MAX_255(c) ((c) <= 255u)
! 274: #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
! 275:
! 276: #elif defined COMPILE_PCRE32
! 277:
! 278: typedef pcre_uint32 pcre_uchar;
! 279: #define UCHAR_SHIFT (2)
! 280: #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
! 281: #define MAX_255(c) ((c) <= 255u)
! 282: #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
! 283:
! 284: #else
! 285: #error Unsupported compiling mode
! 286: #endif /* COMPILE_PCRE[8|16|32] */
1.1 misho 287:
288: /* This is an unsigned int value that no character can ever have. UTF-8
289: characters only go up to 0x7fffffff (though Unicode doesn't go beyond
290: 0x0010ffff). */
291:
292: #define NOTACHAR 0xffffffff
293:
294: /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
295: "any" and "anycrlf" at present). The following macros are used to package up
296: testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
297: modules to indicate in which datablock the parameters exist, and what the
298: start/end of string field names are. */
299:
300: #define NLTYPE_FIXED 0 /* Newline is a fixed length string */
301: #define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
302: #define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
303:
304: /* This macro checks for a newline at the given position */
305:
306: #define IS_NEWLINE(p) \
307: ((NLBLOCK->nltype != NLTYPE_FIXED)? \
308: ((p) < NLBLOCK->PSEND && \
1.1.1.2 ! misho 309: PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
! 310: &(NLBLOCK->nllen), utf)) \
1.1 misho 311: : \
312: ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
1.1.1.2 ! misho 313: RAWUCHARTEST(p) == NLBLOCK->nl[0] && \
! 314: (NLBLOCK->nllen == 1 || RAWUCHARTEST(p+1) == NLBLOCK->nl[1]) \
1.1 misho 315: ) \
316: )
317:
318: /* This macro checks for a newline immediately preceding the given position */
319:
320: #define WAS_NEWLINE(p) \
321: ((NLBLOCK->nltype != NLTYPE_FIXED)? \
322: ((p) > NLBLOCK->PSSTART && \
1.1.1.2 ! misho 323: PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
! 324: &(NLBLOCK->nllen), utf)) \
1.1 misho 325: : \
326: ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
1.1.1.2 ! misho 327: RAWUCHARTEST(p - NLBLOCK->nllen) == NLBLOCK->nl[0] && \
! 328: (NLBLOCK->nllen == 1 || RAWUCHARTEST(p - NLBLOCK->nllen + 1) == NLBLOCK->nl[1]) \
1.1 misho 329: ) \
330: )
331:
332: /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
333: with a custom type. This makes it possible, for example, to allow pcre_exec()
334: to process subject strings that are discontinuous by using a smart pointer
335: class. It must always be possible to inspect all of the subject string in
336: pcre_exec() because of the way it backtracks. Two macros are required in the
337: normal case, for sign-unspecified and unsigned char pointers. The former is
338: used for the external interface and appears in pcre.h, which is why its name
339: must begin with PCRE_. */
340:
341: #ifdef CUSTOM_SUBJECT_PTR
1.1.1.2 ! misho 342: #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
1.1 misho 343: #else
1.1.1.2 ! misho 344: #define PCRE_PUCHAR const pcre_uchar *
1.1 misho 345: #endif
346:
347: /* Include the public PCRE header and the definitions of UCP character property
348: values. */
349:
350: #include "pcre.h"
351: #include "ucp.h"
352:
1.1.1.2 ! misho 353: #ifdef COMPILE_PCRE32
! 354: /* Assert that the public PCRE_UCHAR32 is a 32-bit type */
! 355: typedef int __assert_pcre_uchar32_size[sizeof(PCRE_UCHAR32) == 4 ? 1 : -1];
! 356: #endif
! 357:
1.1 misho 358: /* When compiling for use with the Virtual Pascal compiler, these functions
359: need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
360: option on the command line. */
361:
362: #ifdef VPCOMPAT
363: #define strlen(s) _strlen(s)
364: #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
365: #define memcmp(s,c,n) _memcmp(s,c,n)
366: #define memcpy(d,s,n) _memcpy(d,s,n)
367: #define memmove(d,s,n) _memmove(d,s,n)
368: #define memset(s,c,n) _memset(s,c,n)
369: #else /* VPCOMPAT */
370:
371: /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
372: define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
373: is set. Otherwise, include an emulating function for those systems that have
374: neither (there some non-Unix environments where this is the case). */
375:
376: #ifndef HAVE_MEMMOVE
377: #undef memmove /* some systems may have a macro */
378: #ifdef HAVE_BCOPY
379: #define memmove(a, b, c) bcopy(b, a, c)
380: #else /* HAVE_BCOPY */
381: static void *
382: pcre_memmove(void *d, const void *s, size_t n)
383: {
384: size_t i;
385: unsigned char *dest = (unsigned char *)d;
386: const unsigned char *src = (const unsigned char *)s;
387: if (dest > src)
388: {
389: dest += n;
390: src += n;
391: for (i = 0; i < n; ++i) *(--dest) = *(--src);
392: return (void *)dest;
393: }
394: else
395: {
396: for (i = 0; i < n; ++i) *dest++ = *src++;
397: return (void *)(dest - n);
398: }
399: }
400: #define memmove(a, b, c) pcre_memmove(a, b, c)
401: #endif /* not HAVE_BCOPY */
402: #endif /* not HAVE_MEMMOVE */
403: #endif /* not VPCOMPAT */
404:
405:
406: /* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
407: in big-endian order) by default. These are used, for example, to link from the
408: start of a subpattern to its alternatives and its end. The use of 2 bytes per
409: offset limits the size of the compiled regex to around 64K, which is big enough
410: for almost everybody. However, I received a request for an even bigger limit.
411: For this reason, and also to make the code easier to maintain, the storing and
412: loading of offsets from the byte string is now handled by the macros that are
413: defined here.
414:
415: The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
416: the config.h file, but can be overridden by using -D on the command line. This
417: is automated on Unix systems via the "configure" command. */
418:
1.1.1.2 ! misho 419: #if defined COMPILE_PCRE8
! 420:
1.1 misho 421: #if LINK_SIZE == 2
422:
423: #define PUT(a,n,d) \
424: (a[n] = (d) >> 8), \
425: (a[(n)+1] = (d) & 255)
426:
427: #define GET(a,n) \
428: (((a)[n] << 8) | (a)[(n)+1])
429:
430: #define MAX_PATTERN_SIZE (1 << 16)
431:
432:
433: #elif LINK_SIZE == 3
434:
435: #define PUT(a,n,d) \
436: (a[n] = (d) >> 16), \
437: (a[(n)+1] = (d) >> 8), \
438: (a[(n)+2] = (d) & 255)
439:
440: #define GET(a,n) \
441: (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
442:
443: #define MAX_PATTERN_SIZE (1 << 24)
444:
445:
446: #elif LINK_SIZE == 4
447:
448: #define PUT(a,n,d) \
449: (a[n] = (d) >> 24), \
450: (a[(n)+1] = (d) >> 16), \
451: (a[(n)+2] = (d) >> 8), \
452: (a[(n)+3] = (d) & 255)
453:
454: #define GET(a,n) \
455: (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
456:
1.1.1.2 ! misho 457: /* Keep it positive */
! 458: #define MAX_PATTERN_SIZE (1 << 30)
! 459:
! 460: #else
! 461: #error LINK_SIZE must be either 2, 3, or 4
! 462: #endif
! 463:
! 464: #elif defined COMPILE_PCRE16
! 465:
! 466: #if LINK_SIZE == 2
! 467:
! 468: /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
! 469: #undef LINK_SIZE
! 470: #define LINK_SIZE 1
! 471:
! 472: #define PUT(a,n,d) \
! 473: (a[n] = (d))
! 474:
! 475: #define GET(a,n) \
! 476: (a[n])
! 477:
! 478: #define MAX_PATTERN_SIZE (1 << 16)
! 479:
! 480: #elif LINK_SIZE == 3 || LINK_SIZE == 4
1.1 misho 481:
1.1.1.2 ! misho 482: /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
! 483: #undef LINK_SIZE
! 484: #define LINK_SIZE 2
! 485:
! 486: #define PUT(a,n,d) \
! 487: (a[n] = (d) >> 16), \
! 488: (a[(n)+1] = (d) & 65535)
! 489:
! 490: #define GET(a,n) \
! 491: (((a)[n] << 16) | (a)[(n)+1])
! 492:
! 493: /* Keep it positive */
! 494: #define MAX_PATTERN_SIZE (1 << 30)
1.1 misho 495:
496: #else
497: #error LINK_SIZE must be either 2, 3, or 4
498: #endif
499:
1.1.1.2 ! misho 500: #elif defined COMPILE_PCRE32
! 501:
! 502: /* Only supported LINK_SIZE is 4 */
! 503: /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
! 504: #undef LINK_SIZE
! 505: #define LINK_SIZE 1
! 506:
! 507: #define PUT(a,n,d) \
! 508: (a[n] = (d))
! 509:
! 510: #define GET(a,n) \
! 511: (a[n])
! 512:
! 513: /* Keep it positive */
! 514: #define MAX_PATTERN_SIZE (1 << 30)
! 515:
! 516: #else
! 517: #error Unsupported compiling mode
! 518: #endif /* COMPILE_PCRE[8|16|32] */
1.1 misho 519:
520: /* Convenience macro defined in terms of the others */
521:
522: #define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
523:
524:
525: /* PCRE uses some other 2-byte quantities that do not change when the size of
526: offsets changes. There are used for repeat counts and for other things such as
527: capturing parenthesis numbers in back references. */
528:
1.1.1.2 ! misho 529: #if defined COMPILE_PCRE8
! 530:
! 531: #define IMM2_SIZE 2
! 532:
1.1 misho 533: #define PUT2(a,n,d) \
534: a[n] = (d) >> 8; \
535: a[(n)+1] = (d) & 255
536:
1.1.1.2 ! misho 537: /* For reasons that I do not understand, the expression in this GET2 macro is
! 538: treated by gcc as a signed expression, even when a is declared as unsigned. It
! 539: seems that any kind of arithmetic results in a signed value. */
! 540:
1.1 misho 541: #define GET2(a,n) \
1.1.1.2 ! misho 542: (unsigned int)(((a)[n] << 8) | (a)[(n)+1])
1.1 misho 543:
1.1.1.2 ! misho 544: #elif defined COMPILE_PCRE16
1.1 misho 545:
1.1.1.2 ! misho 546: #define IMM2_SIZE 1
1.1 misho 547:
1.1.1.2 ! misho 548: #define PUT2(a,n,d) \
! 549: a[n] = d
1.1 misho 550:
1.1.1.2 ! misho 551: #define GET2(a,n) \
! 552: a[n]
! 553:
! 554: #elif defined COMPILE_PCRE32
! 555:
! 556: #define IMM2_SIZE 1
! 557:
! 558: #define PUT2(a,n,d) \
! 559: a[n] = d
! 560:
! 561: #define GET2(a,n) \
! 562: a[n]
! 563:
! 564: #else
! 565: #error Unsupported compiling mode
! 566: #endif /* COMPILE_PCRE[8|16|32] */
! 567:
! 568: #define PUT2INC(a,n,d) PUT2(a,n,d), a += IMM2_SIZE
! 569:
! 570: /* The maximum length of a MARK name is currently one data unit; it may be
! 571: changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
! 572:
! 573: #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
! 574: #define MAX_MARK ((1u << 16) - 1)
! 575: #else
! 576: #define MAX_MARK ((1u << 8) - 1)
! 577: #endif
! 578:
! 579: /* When UTF encoding is being used, a character is no longer just a single
! 580: byte. The macros for character handling generate simple sequences when used in
! 581: character-mode, and more complicated ones for UTF characters. GETCHARLENTEST
! 582: and other macros are not used when UTF is not supported, so they are not
! 583: defined. To make sure they can never even appear when UTF support is omitted,
! 584: we don't even define them. */
! 585:
! 586: #ifndef SUPPORT_UTF
! 587:
! 588: /* #define MAX_VALUE_FOR_SINGLE_CHAR */
! 589: /* #define HAS_EXTRALEN(c) */
! 590: /* #define GET_EXTRALEN(c) */
! 591: /* #define NOT_FIRSTCHAR(c) */
1.1 misho 592: #define GETCHAR(c, eptr) c = *eptr;
593: #define GETCHARTEST(c, eptr) c = *eptr;
594: #define GETCHARINC(c, eptr) c = *eptr++;
595: #define GETCHARINCTEST(c, eptr) c = *eptr++;
596: #define GETCHARLEN(c, eptr, len) c = *eptr;
1.1.1.2 ! misho 597: #define RAWUCHAR(eptr) (*(eptr))
! 598: #define RAWUCHARINC(eptr) (*(eptr)++)
! 599: #define RAWUCHARTEST(eptr) (*(eptr))
! 600: #define RAWUCHARINCTEST(eptr) (*(eptr)++)
1.1 misho 601: /* #define GETCHARLENTEST(c, eptr, len) */
602: /* #define BACKCHAR(eptr) */
1.1.1.2 ! misho 603: /* #define FORWARDCHAR(eptr) */
! 604: /* #define ACROSSCHAR(condition, eptr, action) */
1.1 misho 605:
1.1.1.2 ! misho 606: #else /* SUPPORT_UTF */
1.1 misho 607:
1.1.1.2 ! misho 608: /* Tests whether the code point needs extra characters to decode. */
! 609:
! 610: #define HASUTF8EXTRALEN(c) ((c) >= 0xc0)
1.1 misho 611:
612: /* Base macro to pick up the remaining bytes of a UTF-8 character, not
613: advancing the pointer. */
614:
615: #define GETUTF8(c, eptr) \
616: { \
617: if ((c & 0x20) == 0) \
618: c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
619: else if ((c & 0x10) == 0) \
620: c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
621: else if ((c & 0x08) == 0) \
622: c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
623: ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
624: else if ((c & 0x04) == 0) \
625: c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
626: ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
627: (eptr[4] & 0x3f); \
628: else \
629: c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
630: ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
631: ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
632: }
633:
634: /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
635: the pointer. */
636:
637: #define GETUTF8INC(c, eptr) \
638: { \
639: if ((c & 0x20) == 0) \
640: c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
641: else if ((c & 0x10) == 0) \
642: { \
643: c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
644: eptr += 2; \
645: } \
646: else if ((c & 0x08) == 0) \
647: { \
648: c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
649: ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
650: eptr += 3; \
651: } \
652: else if ((c & 0x04) == 0) \
653: { \
654: c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
655: ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
656: (eptr[3] & 0x3f); \
657: eptr += 4; \
658: } \
659: else \
660: { \
661: c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
662: ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
663: ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
664: eptr += 5; \
665: } \
666: }
667:
1.1.1.2 ! misho 668: #if defined COMPILE_PCRE8
! 669:
! 670: /* These macros were originally written in the form of loops that used data
! 671: from the tables whose names start with PRIV(utf8_table). They were rewritten by
! 672: a user so as not to use loops, because in some environments this gives a
! 673: significant performance advantage, and it seems never to do any harm. */
! 674:
! 675: /* Tells the biggest code point which can be encoded as a single character. */
! 676:
! 677: #define MAX_VALUE_FOR_SINGLE_CHAR 127
! 678:
! 679: /* Tests whether the code point needs extra characters to decode. */
! 680:
! 681: #define HAS_EXTRALEN(c) ((c) >= 0xc0)
! 682:
! 683: /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
! 684: Otherwise it has an undefined behaviour. */
! 685:
! 686: #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
! 687:
! 688: /* Returns TRUE, if the given character is not the first character
! 689: of a UTF sequence. */
! 690:
! 691: #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
! 692:
! 693: /* Get the next UTF-8 character, not advancing the pointer. This is called when
! 694: we know we are in UTF-8 mode. */
! 695:
! 696: #define GETCHAR(c, eptr) \
! 697: c = *eptr; \
! 698: if (c >= 0xc0) GETUTF8(c, eptr);
! 699:
! 700: /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
! 701: pointer. */
! 702:
! 703: #define GETCHARTEST(c, eptr) \
! 704: c = *eptr; \
! 705: if (utf && c >= 0xc0) GETUTF8(c, eptr);
! 706:
1.1 misho 707: /* Get the next UTF-8 character, advancing the pointer. This is called when we
708: know we are in UTF-8 mode. */
709:
710: #define GETCHARINC(c, eptr) \
711: c = *eptr++; \
712: if (c >= 0xc0) GETUTF8INC(c, eptr);
713:
714: /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
715: This is called when we don't know if we are in UTF-8 mode. */
716:
717: #define GETCHARINCTEST(c, eptr) \
718: c = *eptr++; \
1.1.1.2 ! misho 719: if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
1.1 misho 720:
721: /* Base macro to pick up the remaining bytes of a UTF-8 character, not
722: advancing the pointer, incrementing the length. */
723:
724: #define GETUTF8LEN(c, eptr, len) \
725: { \
726: if ((c & 0x20) == 0) \
727: { \
728: c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
729: len++; \
730: } \
731: else if ((c & 0x10) == 0) \
732: { \
733: c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
734: len += 2; \
735: } \
736: else if ((c & 0x08) == 0) \
737: {\
738: c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
739: ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
740: len += 3; \
741: } \
742: else if ((c & 0x04) == 0) \
743: { \
744: c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
745: ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
746: (eptr[4] & 0x3f); \
747: len += 4; \
748: } \
749: else \
750: {\
751: c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
752: ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
753: ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
754: len += 5; \
755: } \
756: }
757:
758: /* Get the next UTF-8 character, not advancing the pointer, incrementing length
759: if there are extra bytes. This is called when we know we are in UTF-8 mode. */
760:
761: #define GETCHARLEN(c, eptr, len) \
762: c = *eptr; \
763: if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
764:
765: /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
766: pointer, incrementing length if there are extra bytes. This is called when we
767: do not know if we are in UTF-8 mode. */
768:
769: #define GETCHARLENTEST(c, eptr, len) \
770: c = *eptr; \
1.1.1.2 ! misho 771: if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
! 772:
! 773: /* Returns the next uchar, not advancing the pointer. This is called when
! 774: we know we are in UTF mode. */
! 775:
! 776: #define RAWUCHAR(eptr) \
! 777: (*(eptr))
! 778:
! 779: /* Returns the next uchar, advancing the pointer. This is called when
! 780: we know we are in UTF mode. */
! 781:
! 782: #define RAWUCHARINC(eptr) \
! 783: (*((eptr)++))
! 784:
! 785: /* Returns the next uchar, testing for UTF mode, and not advancing the
! 786: pointer. */
! 787:
! 788: #define RAWUCHARTEST(eptr) \
! 789: (*(eptr))
! 790:
! 791: /* Returns the next uchar, testing for UTF mode, advancing the
! 792: pointer. */
! 793:
! 794: #define RAWUCHARINCTEST(eptr) \
! 795: (*((eptr)++))
1.1 misho 796:
797: /* If the pointer is not at the start of a character, move it back until
798: it is. This is called only in UTF-8 mode - we don't put a test within the macro
799: because almost all calls are already within a block of UTF-8 only code. */
800:
801: #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
802:
1.1.1.2 ! misho 803: /* Same as above, just in the other direction. */
! 804: #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
! 805:
! 806: /* Same as above, but it allows a fully customizable form. */
! 807: #define ACROSSCHAR(condition, eptr, action) \
! 808: while((condition) && ((eptr) & 0xc0) == 0x80) action
! 809:
! 810: #elif defined COMPILE_PCRE16
! 811:
! 812: /* Tells the biggest code point which can be encoded as a single character. */
! 813:
! 814: #define MAX_VALUE_FOR_SINGLE_CHAR 65535
! 815:
! 816: /* Tests whether the code point needs extra characters to decode. */
! 817:
! 818: #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
! 819:
! 820: /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
! 821: Otherwise it has an undefined behaviour. */
! 822:
! 823: #define GET_EXTRALEN(c) 1
1.1 misho 824:
1.1.1.2 ! misho 825: /* Returns TRUE, if the given character is not the first character
! 826: of a UTF sequence. */
1.1 misho 827:
1.1.1.2 ! misho 828: #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
! 829:
! 830: /* Base macro to pick up the low surrogate of a UTF-16 character, not
! 831: advancing the pointer. */
! 832:
! 833: #define GETUTF16(c, eptr) \
! 834: { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
! 835:
! 836: /* Get the next UTF-16 character, not advancing the pointer. This is called when
! 837: we know we are in UTF-16 mode. */
! 838:
! 839: #define GETCHAR(c, eptr) \
! 840: c = *eptr; \
! 841: if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
! 842:
! 843: /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
! 844: pointer. */
! 845:
! 846: #define GETCHARTEST(c, eptr) \
! 847: c = *eptr; \
! 848: if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
! 849:
! 850: /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
! 851: the pointer. */
! 852:
! 853: #define GETUTF16INC(c, eptr) \
! 854: { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
! 855:
! 856: /* Get the next UTF-16 character, advancing the pointer. This is called when we
! 857: know we are in UTF-16 mode. */
! 858:
! 859: #define GETCHARINC(c, eptr) \
! 860: c = *eptr++; \
! 861: if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
1.1 misho 862:
1.1.1.2 ! misho 863: /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
! 864: This is called when we don't know if we are in UTF-16 mode. */
! 865:
! 866: #define GETCHARINCTEST(c, eptr) \
! 867: c = *eptr++; \
! 868: if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
! 869:
! 870: /* Base macro to pick up the low surrogate of a UTF-16 character, not
! 871: advancing the pointer, incrementing the length. */
! 872:
! 873: #define GETUTF16LEN(c, eptr, len) \
! 874: { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
! 875:
! 876: /* Get the next UTF-16 character, not advancing the pointer, incrementing
! 877: length if there is a low surrogate. This is called when we know we are in
! 878: UTF-16 mode. */
! 879:
! 880: #define GETCHARLEN(c, eptr, len) \
! 881: c = *eptr; \
! 882: if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
! 883:
! 884: /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
! 885: pointer, incrementing length if there is a low surrogate. This is called when
! 886: we do not know if we are in UTF-16 mode. */
! 887:
! 888: #define GETCHARLENTEST(c, eptr, len) \
! 889: c = *eptr; \
! 890: if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
! 891:
! 892: /* Returns the next uchar, not advancing the pointer. This is called when
! 893: we know we are in UTF mode. */
! 894:
! 895: #define RAWUCHAR(eptr) \
! 896: (*(eptr))
! 897:
! 898: /* Returns the next uchar, advancing the pointer. This is called when
! 899: we know we are in UTF mode. */
! 900:
! 901: #define RAWUCHARINC(eptr) \
! 902: (*((eptr)++))
! 903:
! 904: /* Returns the next uchar, testing for UTF mode, and not advancing the
! 905: pointer. */
! 906:
! 907: #define RAWUCHARTEST(eptr) \
! 908: (*(eptr))
! 909:
! 910: /* Returns the next uchar, testing for UTF mode, advancing the
! 911: pointer. */
! 912:
! 913: #define RAWUCHARINCTEST(eptr) \
! 914: (*((eptr)++))
! 915:
! 916: /* If the pointer is not at the start of a character, move it back until
! 917: it is. This is called only in UTF-16 mode - we don't put a test within the
! 918: macro because almost all calls are already within a block of UTF-16 only
! 919: code. */
! 920:
! 921: #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
! 922:
! 923: /* Same as above, just in the other direction. */
! 924: #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
! 925:
! 926: /* Same as above, but it allows a fully customizable form. */
! 927: #define ACROSSCHAR(condition, eptr, action) \
! 928: if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
! 929:
! 930: #elif defined COMPILE_PCRE32
! 931:
! 932: /* These are trivial for the 32-bit library, since all UTF-32 characters fit
! 933: into one pcre_uchar unit. */
! 934: #define MAX_VALUE_FOR_SINGLE_CHAR (0x10ffffu)
! 935: #define HAS_EXTRALEN(c) (0)
! 936: #define GET_EXTRALEN(c) (0)
! 937: #define NOT_FIRSTCHAR(c) (0)
! 938:
! 939: /* Get the next UTF-32 character, not advancing the pointer. This is called when
! 940: we know we are in UTF-32 mode. */
! 941:
! 942: #define GETCHAR(c, eptr) \
! 943: c = *(eptr);
! 944:
! 945: /* Get the next UTF-32 character, testing for UTF-32 mode, and not advancing the
! 946: pointer. */
! 947:
! 948: #define GETCHARTEST(c, eptr) \
! 949: c = *(eptr);
! 950:
! 951: /* Get the next UTF-32 character, advancing the pointer. This is called when we
! 952: know we are in UTF-32 mode. */
! 953:
! 954: #define GETCHARINC(c, eptr) \
! 955: c = *((eptr)++);
! 956:
! 957: /* Get the next character, testing for UTF-32 mode, and advancing the pointer.
! 958: This is called when we don't know if we are in UTF-32 mode. */
! 959:
! 960: #define GETCHARINCTEST(c, eptr) \
! 961: c = *((eptr)++);
! 962:
! 963: /* Get the next UTF-32 character, not advancing the pointer, not incrementing
! 964: length (since all UTF-32 is of length 1). This is called when we know we are in
! 965: UTF-32 mode. */
! 966:
! 967: #define GETCHARLEN(c, eptr, len) \
! 968: GETCHAR(c, eptr)
! 969:
! 970: /* Get the next UTF-32character, testing for UTF-32 mode, not advancing the
! 971: pointer, not incrementing the length (since all UTF-32 is of length 1).
! 972: This is called when we do not know if we are in UTF-32 mode. */
! 973:
! 974: #define GETCHARLENTEST(c, eptr, len) \
! 975: GETCHARTEST(c, eptr)
! 976:
! 977: /* Returns the next uchar, not advancing the pointer. This is called when
! 978: we know we are in UTF mode. */
! 979:
! 980: #define RAWUCHAR(eptr) \
! 981: (*(eptr))
! 982:
! 983: /* Returns the next uchar, advancing the pointer. This is called when
! 984: we know we are in UTF mode. */
! 985:
! 986: #define RAWUCHARINC(eptr) \
! 987: (*((eptr)++))
! 988:
! 989: /* Returns the next uchar, testing for UTF mode, and not advancing the
! 990: pointer. */
! 991:
! 992: #define RAWUCHARTEST(eptr) \
! 993: (*(eptr))
! 994:
! 995: /* Returns the next uchar, testing for UTF mode, advancing the
! 996: pointer. */
! 997:
! 998: #define RAWUCHARINCTEST(eptr) \
! 999: (*((eptr)++))
! 1000:
! 1001: /* If the pointer is not at the start of a character, move it back until
! 1002: it is. This is called only in UTF-32 mode - we don't put a test within the
! 1003: macro because almost all calls are already within a block of UTF-32 only
! 1004: code.
! 1005: These are all no-ops since all UTF-32 characters fit into one pcre_uchar. */
! 1006:
! 1007: #define BACKCHAR(eptr) do { } while (0)
! 1008:
! 1009: /* Same as above, just in the other direction. */
! 1010: #define FORWARDCHAR(eptr) do { } while (0)
! 1011:
! 1012: /* Same as above, but it allows a fully customizable form. */
! 1013: #define ACROSSCHAR(condition, eptr, action) do { } while (0)
! 1014:
! 1015: #else
! 1016: #error Unsupported compiling mode
! 1017: #endif /* COMPILE_PCRE[8|16|32] */
! 1018:
! 1019: #endif /* SUPPORT_UTF */
! 1020:
! 1021: /* Tests for Unicode horizontal and vertical whitespace characters must check a
! 1022: number of different values. Using a switch statement for this generates the
! 1023: fastest code (no loop, no memory access), and there are several places in the
! 1024: interpreter code where this happens. In order to ensure that all the case lists
! 1025: remain in step, we use macros so that there is only one place where the lists
! 1026: are defined.
! 1027:
! 1028: These values are also required as lists in pcre_compile.c when processing \h,
! 1029: \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
! 1030: macros that define the values are here so that all the definitions are
! 1031: together. The lists must be in ascending character order, terminated by
! 1032: NOTACHAR (which is 0xffffffff).
! 1033:
! 1034: Any changes should ensure that the various macros are kept in step with each
! 1035: other. NOTE: The values also appear in pcre_jit_compile.c. */
! 1036:
! 1037: /* ------ ASCII/Unicode environments ------ */
! 1038:
! 1039: #ifndef EBCDIC
! 1040:
! 1041: #define HSPACE_LIST \
! 1042: CHAR_HT, CHAR_SPACE, 0xa0, \
! 1043: 0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
! 1044: 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
! 1045: NOTACHAR
! 1046:
! 1047: #define HSPACE_MULTIBYTE_CASES \
! 1048: case 0x1680: /* OGHAM SPACE MARK */ \
! 1049: case 0x180e: /* MONGOLIAN VOWEL SEPARATOR */ \
! 1050: case 0x2000: /* EN QUAD */ \
! 1051: case 0x2001: /* EM QUAD */ \
! 1052: case 0x2002: /* EN SPACE */ \
! 1053: case 0x2003: /* EM SPACE */ \
! 1054: case 0x2004: /* THREE-PER-EM SPACE */ \
! 1055: case 0x2005: /* FOUR-PER-EM SPACE */ \
! 1056: case 0x2006: /* SIX-PER-EM SPACE */ \
! 1057: case 0x2007: /* FIGURE SPACE */ \
! 1058: case 0x2008: /* PUNCTUATION SPACE */ \
! 1059: case 0x2009: /* THIN SPACE */ \
! 1060: case 0x200A: /* HAIR SPACE */ \
! 1061: case 0x202f: /* NARROW NO-BREAK SPACE */ \
! 1062: case 0x205f: /* MEDIUM MATHEMATICAL SPACE */ \
! 1063: case 0x3000 /* IDEOGRAPHIC SPACE */
! 1064:
! 1065: #define HSPACE_BYTE_CASES \
! 1066: case CHAR_HT: \
! 1067: case CHAR_SPACE: \
! 1068: case 0xa0 /* NBSP */
! 1069:
! 1070: #define HSPACE_CASES \
! 1071: HSPACE_BYTE_CASES: \
! 1072: HSPACE_MULTIBYTE_CASES
! 1073:
! 1074: #define VSPACE_LIST \
! 1075: CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
! 1076:
! 1077: #define VSPACE_MULTIBYTE_CASES \
! 1078: case 0x2028: /* LINE SEPARATOR */ \
! 1079: case 0x2029 /* PARAGRAPH SEPARATOR */
! 1080:
! 1081: #define VSPACE_BYTE_CASES \
! 1082: case CHAR_LF: \
! 1083: case CHAR_VT: \
! 1084: case CHAR_FF: \
! 1085: case CHAR_CR: \
! 1086: case CHAR_NEL
! 1087:
! 1088: #define VSPACE_CASES \
! 1089: VSPACE_BYTE_CASES: \
! 1090: VSPACE_MULTIBYTE_CASES
! 1091:
! 1092: /* ------ EBCDIC environments ------ */
! 1093:
! 1094: #else
! 1095: #define HSPACE_LIST CHAR_HT, CHAR_SPACE
! 1096:
! 1097: #define HSPACE_BYTE_CASES \
! 1098: case CHAR_HT: \
! 1099: case CHAR_SPACE
! 1100:
! 1101: #define HSPACE_CASES HSPACE_BYTE_CASES
! 1102:
! 1103: #ifdef EBCDIC_NL25
! 1104: #define VSPACE_LIST \
! 1105: CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
! 1106: #else
! 1107: #define VSPACE_LIST \
! 1108: CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
1.1 misho 1109: #endif
1110:
1.1.1.2 ! misho 1111: #define VSPACE_BYTE_CASES \
! 1112: case CHAR_LF: \
! 1113: case CHAR_VT: \
! 1114: case CHAR_FF: \
! 1115: case CHAR_CR: \
! 1116: case CHAR_NEL
! 1117:
! 1118: #define VSPACE_CASES VSPACE_BYTE_CASES
! 1119: #endif /* EBCDIC */
! 1120:
! 1121: /* ------ End of whitespace macros ------ */
1.1 misho 1122:
1123:
1124:
1125: /* Private flags containing information about the compiled regex. They used to
1126: live at the top end of the options word, but that got almost full, so now they
1127: are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
1128: the restrictions on partial matching have been lifted. It remains for backwards
1129: compatibility. */
1130:
1.1.1.2 ! misho 1131: #define PCRE_MODE8 0x0001 /* compiled in 8 bit mode */
! 1132: #define PCRE_MODE16 0x0002 /* compiled in 16 bit mode */
! 1133: #define PCRE_MODE32 0x0004 /* compiled in 32 bit mode */
! 1134: #define PCRE_FIRSTSET 0x0010 /* first_char is set */
! 1135: #define PCRE_FCH_CASELESS 0x0020 /* caseless first char */
! 1136: #define PCRE_REQCHSET 0x0040 /* req_byte is set */
! 1137: #define PCRE_RCH_CASELESS 0x0080 /* caseless requested char */
! 1138: #define PCRE_STARTLINE 0x0100 /* start after \n for multiline */
! 1139: #define PCRE_NOPARTIAL 0x0200 /* can't use partial with this regex */
! 1140: #define PCRE_JCHANGED 0x0400 /* j option used in regex */
! 1141: #define PCRE_HASCRORLF 0x0800 /* explicit \r or \n in pattern */
! 1142: #define PCRE_HASTHEN 0x1000 /* pattern contains (*THEN) */
! 1143:
! 1144: #if defined COMPILE_PCRE8
! 1145: #define PCRE_MODE PCRE_MODE8
! 1146: #elif defined COMPILE_PCRE16
! 1147: #define PCRE_MODE PCRE_MODE16
! 1148: #elif defined COMPILE_PCRE32
! 1149: #define PCRE_MODE PCRE_MODE32
! 1150: #endif
! 1151: #define PCRE_MODE_MASK (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
1.1 misho 1152:
1.1.1.2 ! misho 1153: /* Flags for the "extra" block produced by pcre_study(). */
1.1 misho 1154:
1.1.1.2 ! misho 1155: #define PCRE_STUDY_MAPPED 0x0001 /* a map of starting chars exists */
! 1156: #define PCRE_STUDY_MINLEN 0x0002 /* a minimum length field exists */
1.1 misho 1157:
1158: /* Masks for identifying the public options that are permitted at compile
1159: time, run time, or study time, respectively. */
1160:
1161: #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
1162: PCRE_NEWLINE_ANYCRLF)
1163:
1164: #define PUBLIC_COMPILE_OPTIONS \
1165: (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
1166: PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
1167: PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1168: PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1169: PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
1170:
1171: #define PUBLIC_EXEC_OPTIONS \
1172: (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1173: PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
1174: PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
1175:
1176: #define PUBLIC_DFA_EXEC_OPTIONS \
1177: (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
1178: PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
1179: PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1180: PCRE_NO_START_OPTIMIZE)
1181:
1.1.1.2 ! misho 1182: #define PUBLIC_STUDY_OPTIONS \
! 1183: (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
! 1184: PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
! 1185:
! 1186: #define PUBLIC_JIT_EXEC_OPTIONS \
! 1187: (PCRE_NO_UTF8_CHECK|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|\
! 1188: PCRE_NOTEMPTY_ATSTART|PCRE_PARTIAL_SOFT|PCRE_PARTIAL_HARD)
1.1 misho 1189:
1.1.1.2 ! misho 1190: /* Magic number to provide a small check against being handed junk. */
1.1 misho 1191:
1192: #define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
1193:
1.1.1.2 ! misho 1194: /* This variable is used to detect a loaded regular expression
! 1195: in different endianness. */
1.1 misho 1196:
1.1.1.2 ! misho 1197: #define REVERSED_MAGIC_NUMBER 0x45524350UL /* 'ERCP' */
1.1 misho 1198:
1199: /* The maximum remaining length of subject we are prepared to search for a
1200: req_byte match. */
1201:
1202: #define REQ_BYTE_MAX 1000
1203:
1204: /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1205: environments where these macros are defined elsewhere. Unfortunately, there
1206: is no way to do the same for the typedef. */
1207:
1208: typedef int BOOL;
1209:
1210: #ifndef FALSE
1211: #define FALSE 0
1212: #define TRUE 1
1213: #endif
1214:
1215: /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
1216: character constants like '*' because the compiler would emit their EBCDIC code,
1217: which is different from their ASCII/UTF-8 code. Instead we define macros for
1218: the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
1219: is enabled. When UTF-8 support is not enabled, the definitions use character
1220: literals. Both character and string versions of each character are needed, and
1221: there are some longer strings as well.
1222:
1223: This means that, on EBCDIC platforms, the PCRE library can handle either
1224: EBCDIC, or UTF-8, but not both. To support both in the same compiled library
1225: would need different lookups depending on whether PCRE_UTF8 was set or not.
1226: This would make it impossible to use characters in switch/case statements,
1227: which would reduce performance. For a theoretical use (which nobody has asked
1228: for) in a minority area (EBCDIC platforms), this is not sensible. Any
1229: application that did need both could compile two versions of the library, using
1230: macros to give the functions distinct names. */
1231:
1.1.1.2 ! misho 1232: #ifndef SUPPORT_UTF
1.1 misho 1233:
1234: /* UTF-8 support is not enabled; use the platform-dependent character literals
1.1.1.2 ! misho 1235: so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
! 1236: mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
! 1237: characters, a common practice has been to use its NL (0x15) character as the
! 1238: line terminator in C-like processing environments. However, sometimes the LF
! 1239: (0x25) character is used instead, according to this Unicode document:
! 1240:
! 1241: http://unicode.org/standard/reports/tr13/tr13-5.html
1.1 misho 1242:
1.1.1.2 ! misho 1243: PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
! 1244: instead. Whichever is *not* chosen is defined as NEL.
! 1245:
! 1246: In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
! 1247: same code point. */
! 1248:
! 1249: #ifdef EBCDIC
! 1250:
! 1251: #ifndef EBCDIC_NL25
! 1252: #define CHAR_NL '\x15'
! 1253: #define CHAR_NEL '\x25'
! 1254: #define STR_NL "\x15"
! 1255: #define STR_NEL "\x25"
! 1256: #else
! 1257: #define CHAR_NL '\x25'
! 1258: #define CHAR_NEL '\x15'
! 1259: #define STR_NL "\x25"
! 1260: #define STR_NEL "\x15"
! 1261: #endif
! 1262:
! 1263: #define CHAR_LF CHAR_NL
! 1264: #define STR_LF STR_NL
! 1265:
! 1266: #define CHAR_ESC '\047'
! 1267: #define CHAR_DEL '\007'
! 1268: #define STR_ESC "\047"
! 1269: #define STR_DEL "\007"
! 1270:
! 1271: #else /* Not EBCDIC */
! 1272:
! 1273: /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
! 1274: compatibility. NEL is the Unicode newline character; make sure it is
! 1275: a positive value. */
! 1276:
! 1277: #define CHAR_LF '\n'
! 1278: #define CHAR_NL CHAR_LF
! 1279: #define CHAR_NEL ((unsigned char)'\x85')
! 1280: #define CHAR_ESC '\033'
! 1281: #define CHAR_DEL '\177'
! 1282:
! 1283: #define STR_LF "\n"
! 1284: #define STR_NL STR_LF
! 1285: #define STR_NEL "\x85"
! 1286: #define STR_ESC "\033"
! 1287: #define STR_DEL "\177"
! 1288:
! 1289: #endif /* EBCDIC */
! 1290:
! 1291: /* The remaining definitions work in both environments. */
! 1292:
! 1293: #define CHAR_NULL '\0'
1.1 misho 1294: #define CHAR_HT '\t'
1295: #define CHAR_VT '\v'
1296: #define CHAR_FF '\f'
1297: #define CHAR_CR '\r'
1298: #define CHAR_BS '\b'
1299: #define CHAR_BEL '\a'
1300:
1301: #define CHAR_SPACE ' '
1302: #define CHAR_EXCLAMATION_MARK '!'
1303: #define CHAR_QUOTATION_MARK '"'
1304: #define CHAR_NUMBER_SIGN '#'
1305: #define CHAR_DOLLAR_SIGN '$'
1306: #define CHAR_PERCENT_SIGN '%'
1307: #define CHAR_AMPERSAND '&'
1308: #define CHAR_APOSTROPHE '\''
1309: #define CHAR_LEFT_PARENTHESIS '('
1310: #define CHAR_RIGHT_PARENTHESIS ')'
1311: #define CHAR_ASTERISK '*'
1312: #define CHAR_PLUS '+'
1313: #define CHAR_COMMA ','
1314: #define CHAR_MINUS '-'
1315: #define CHAR_DOT '.'
1316: #define CHAR_SLASH '/'
1317: #define CHAR_0 '0'
1318: #define CHAR_1 '1'
1319: #define CHAR_2 '2'
1320: #define CHAR_3 '3'
1321: #define CHAR_4 '4'
1322: #define CHAR_5 '5'
1323: #define CHAR_6 '6'
1324: #define CHAR_7 '7'
1325: #define CHAR_8 '8'
1326: #define CHAR_9 '9'
1327: #define CHAR_COLON ':'
1328: #define CHAR_SEMICOLON ';'
1329: #define CHAR_LESS_THAN_SIGN '<'
1330: #define CHAR_EQUALS_SIGN '='
1331: #define CHAR_GREATER_THAN_SIGN '>'
1332: #define CHAR_QUESTION_MARK '?'
1333: #define CHAR_COMMERCIAL_AT '@'
1334: #define CHAR_A 'A'
1335: #define CHAR_B 'B'
1336: #define CHAR_C 'C'
1337: #define CHAR_D 'D'
1338: #define CHAR_E 'E'
1339: #define CHAR_F 'F'
1340: #define CHAR_G 'G'
1341: #define CHAR_H 'H'
1342: #define CHAR_I 'I'
1343: #define CHAR_J 'J'
1344: #define CHAR_K 'K'
1345: #define CHAR_L 'L'
1346: #define CHAR_M 'M'
1347: #define CHAR_N 'N'
1348: #define CHAR_O 'O'
1349: #define CHAR_P 'P'
1350: #define CHAR_Q 'Q'
1351: #define CHAR_R 'R'
1352: #define CHAR_S 'S'
1353: #define CHAR_T 'T'
1354: #define CHAR_U 'U'
1355: #define CHAR_V 'V'
1356: #define CHAR_W 'W'
1357: #define CHAR_X 'X'
1358: #define CHAR_Y 'Y'
1359: #define CHAR_Z 'Z'
1360: #define CHAR_LEFT_SQUARE_BRACKET '['
1361: #define CHAR_BACKSLASH '\\'
1362: #define CHAR_RIGHT_SQUARE_BRACKET ']'
1363: #define CHAR_CIRCUMFLEX_ACCENT '^'
1364: #define CHAR_UNDERSCORE '_'
1365: #define CHAR_GRAVE_ACCENT '`'
1366: #define CHAR_a 'a'
1367: #define CHAR_b 'b'
1368: #define CHAR_c 'c'
1369: #define CHAR_d 'd'
1370: #define CHAR_e 'e'
1371: #define CHAR_f 'f'
1372: #define CHAR_g 'g'
1373: #define CHAR_h 'h'
1374: #define CHAR_i 'i'
1375: #define CHAR_j 'j'
1376: #define CHAR_k 'k'
1377: #define CHAR_l 'l'
1378: #define CHAR_m 'm'
1379: #define CHAR_n 'n'
1380: #define CHAR_o 'o'
1381: #define CHAR_p 'p'
1382: #define CHAR_q 'q'
1383: #define CHAR_r 'r'
1384: #define CHAR_s 's'
1385: #define CHAR_t 't'
1386: #define CHAR_u 'u'
1387: #define CHAR_v 'v'
1388: #define CHAR_w 'w'
1389: #define CHAR_x 'x'
1390: #define CHAR_y 'y'
1391: #define CHAR_z 'z'
1392: #define CHAR_LEFT_CURLY_BRACKET '{'
1393: #define CHAR_VERTICAL_LINE '|'
1394: #define CHAR_RIGHT_CURLY_BRACKET '}'
1395: #define CHAR_TILDE '~'
1396:
1397: #define STR_HT "\t"
1398: #define STR_VT "\v"
1399: #define STR_FF "\f"
1400: #define STR_CR "\r"
1401: #define STR_BS "\b"
1402: #define STR_BEL "\a"
1403:
1404: #define STR_SPACE " "
1405: #define STR_EXCLAMATION_MARK "!"
1406: #define STR_QUOTATION_MARK "\""
1407: #define STR_NUMBER_SIGN "#"
1408: #define STR_DOLLAR_SIGN "$"
1409: #define STR_PERCENT_SIGN "%"
1410: #define STR_AMPERSAND "&"
1411: #define STR_APOSTROPHE "'"
1412: #define STR_LEFT_PARENTHESIS "("
1413: #define STR_RIGHT_PARENTHESIS ")"
1414: #define STR_ASTERISK "*"
1415: #define STR_PLUS "+"
1416: #define STR_COMMA ","
1417: #define STR_MINUS "-"
1418: #define STR_DOT "."
1419: #define STR_SLASH "/"
1420: #define STR_0 "0"
1421: #define STR_1 "1"
1422: #define STR_2 "2"
1423: #define STR_3 "3"
1424: #define STR_4 "4"
1425: #define STR_5 "5"
1426: #define STR_6 "6"
1427: #define STR_7 "7"
1428: #define STR_8 "8"
1429: #define STR_9 "9"
1430: #define STR_COLON ":"
1431: #define STR_SEMICOLON ";"
1432: #define STR_LESS_THAN_SIGN "<"
1433: #define STR_EQUALS_SIGN "="
1434: #define STR_GREATER_THAN_SIGN ">"
1435: #define STR_QUESTION_MARK "?"
1436: #define STR_COMMERCIAL_AT "@"
1437: #define STR_A "A"
1438: #define STR_B "B"
1439: #define STR_C "C"
1440: #define STR_D "D"
1441: #define STR_E "E"
1442: #define STR_F "F"
1443: #define STR_G "G"
1444: #define STR_H "H"
1445: #define STR_I "I"
1446: #define STR_J "J"
1447: #define STR_K "K"
1448: #define STR_L "L"
1449: #define STR_M "M"
1450: #define STR_N "N"
1451: #define STR_O "O"
1452: #define STR_P "P"
1453: #define STR_Q "Q"
1454: #define STR_R "R"
1455: #define STR_S "S"
1456: #define STR_T "T"
1457: #define STR_U "U"
1458: #define STR_V "V"
1459: #define STR_W "W"
1460: #define STR_X "X"
1461: #define STR_Y "Y"
1462: #define STR_Z "Z"
1463: #define STR_LEFT_SQUARE_BRACKET "["
1464: #define STR_BACKSLASH "\\"
1465: #define STR_RIGHT_SQUARE_BRACKET "]"
1466: #define STR_CIRCUMFLEX_ACCENT "^"
1467: #define STR_UNDERSCORE "_"
1468: #define STR_GRAVE_ACCENT "`"
1469: #define STR_a "a"
1470: #define STR_b "b"
1471: #define STR_c "c"
1472: #define STR_d "d"
1473: #define STR_e "e"
1474: #define STR_f "f"
1475: #define STR_g "g"
1476: #define STR_h "h"
1477: #define STR_i "i"
1478: #define STR_j "j"
1479: #define STR_k "k"
1480: #define STR_l "l"
1481: #define STR_m "m"
1482: #define STR_n "n"
1483: #define STR_o "o"
1484: #define STR_p "p"
1485: #define STR_q "q"
1486: #define STR_r "r"
1487: #define STR_s "s"
1488: #define STR_t "t"
1489: #define STR_u "u"
1490: #define STR_v "v"
1491: #define STR_w "w"
1492: #define STR_x "x"
1493: #define STR_y "y"
1494: #define STR_z "z"
1495: #define STR_LEFT_CURLY_BRACKET "{"
1496: #define STR_VERTICAL_LINE "|"
1497: #define STR_RIGHT_CURLY_BRACKET "}"
1498: #define STR_TILDE "~"
1499:
1500: #define STRING_ACCEPT0 "ACCEPT\0"
1501: #define STRING_COMMIT0 "COMMIT\0"
1502: #define STRING_F0 "F\0"
1503: #define STRING_FAIL0 "FAIL\0"
1504: #define STRING_MARK0 "MARK\0"
1505: #define STRING_PRUNE0 "PRUNE\0"
1506: #define STRING_SKIP0 "SKIP\0"
1507: #define STRING_THEN "THEN"
1508:
1509: #define STRING_alpha0 "alpha\0"
1510: #define STRING_lower0 "lower\0"
1511: #define STRING_upper0 "upper\0"
1512: #define STRING_alnum0 "alnum\0"
1513: #define STRING_ascii0 "ascii\0"
1514: #define STRING_blank0 "blank\0"
1515: #define STRING_cntrl0 "cntrl\0"
1516: #define STRING_digit0 "digit\0"
1517: #define STRING_graph0 "graph\0"
1518: #define STRING_print0 "print\0"
1519: #define STRING_punct0 "punct\0"
1520: #define STRING_space0 "space\0"
1521: #define STRING_word0 "word\0"
1522: #define STRING_xdigit "xdigit"
1523:
1524: #define STRING_DEFINE "DEFINE"
1525:
1526: #define STRING_CR_RIGHTPAR "CR)"
1527: #define STRING_LF_RIGHTPAR "LF)"
1528: #define STRING_CRLF_RIGHTPAR "CRLF)"
1529: #define STRING_ANY_RIGHTPAR "ANY)"
1530: #define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
1531: #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
1532: #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
1533: #define STRING_UTF8_RIGHTPAR "UTF8)"
1.1.1.2 ! misho 1534: #define STRING_UTF16_RIGHTPAR "UTF16)"
! 1535: #define STRING_UTF32_RIGHTPAR "UTF32)"
! 1536: #define STRING_UTF_RIGHTPAR "UTF)"
1.1 misho 1537: #define STRING_UCP_RIGHTPAR "UCP)"
1538: #define STRING_NO_START_OPT_RIGHTPAR "NO_START_OPT)"
1539:
1.1.1.2 ! misho 1540: #else /* SUPPORT_UTF */
1.1 misho 1541:
1542: /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1543: works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
1544: only. */
1545:
1546: #define CHAR_HT '\011'
1547: #define CHAR_VT '\013'
1548: #define CHAR_FF '\014'
1549: #define CHAR_CR '\015'
1.1.1.2 ! misho 1550: #define CHAR_LF '\012'
! 1551: #define CHAR_NL CHAR_LF
! 1552: #define CHAR_NEL ((unsigned char)'\x85')
1.1 misho 1553: #define CHAR_BS '\010'
1554: #define CHAR_BEL '\007'
1555: #define CHAR_ESC '\033'
1556: #define CHAR_DEL '\177'
1557:
1.1.1.2 ! misho 1558: #define CHAR_NULL '\0'
1.1 misho 1559: #define CHAR_SPACE '\040'
1560: #define CHAR_EXCLAMATION_MARK '\041'
1561: #define CHAR_QUOTATION_MARK '\042'
1562: #define CHAR_NUMBER_SIGN '\043'
1563: #define CHAR_DOLLAR_SIGN '\044'
1564: #define CHAR_PERCENT_SIGN '\045'
1565: #define CHAR_AMPERSAND '\046'
1566: #define CHAR_APOSTROPHE '\047'
1567: #define CHAR_LEFT_PARENTHESIS '\050'
1568: #define CHAR_RIGHT_PARENTHESIS '\051'
1569: #define CHAR_ASTERISK '\052'
1570: #define CHAR_PLUS '\053'
1571: #define CHAR_COMMA '\054'
1572: #define CHAR_MINUS '\055'
1573: #define CHAR_DOT '\056'
1574: #define CHAR_SLASH '\057'
1575: #define CHAR_0 '\060'
1576: #define CHAR_1 '\061'
1577: #define CHAR_2 '\062'
1578: #define CHAR_3 '\063'
1579: #define CHAR_4 '\064'
1580: #define CHAR_5 '\065'
1581: #define CHAR_6 '\066'
1582: #define CHAR_7 '\067'
1583: #define CHAR_8 '\070'
1584: #define CHAR_9 '\071'
1585: #define CHAR_COLON '\072'
1586: #define CHAR_SEMICOLON '\073'
1587: #define CHAR_LESS_THAN_SIGN '\074'
1588: #define CHAR_EQUALS_SIGN '\075'
1589: #define CHAR_GREATER_THAN_SIGN '\076'
1590: #define CHAR_QUESTION_MARK '\077'
1591: #define CHAR_COMMERCIAL_AT '\100'
1592: #define CHAR_A '\101'
1593: #define CHAR_B '\102'
1594: #define CHAR_C '\103'
1595: #define CHAR_D '\104'
1596: #define CHAR_E '\105'
1597: #define CHAR_F '\106'
1598: #define CHAR_G '\107'
1599: #define CHAR_H '\110'
1600: #define CHAR_I '\111'
1601: #define CHAR_J '\112'
1602: #define CHAR_K '\113'
1603: #define CHAR_L '\114'
1604: #define CHAR_M '\115'
1605: #define CHAR_N '\116'
1606: #define CHAR_O '\117'
1607: #define CHAR_P '\120'
1608: #define CHAR_Q '\121'
1609: #define CHAR_R '\122'
1610: #define CHAR_S '\123'
1611: #define CHAR_T '\124'
1612: #define CHAR_U '\125'
1613: #define CHAR_V '\126'
1614: #define CHAR_W '\127'
1615: #define CHAR_X '\130'
1616: #define CHAR_Y '\131'
1617: #define CHAR_Z '\132'
1618: #define CHAR_LEFT_SQUARE_BRACKET '\133'
1619: #define CHAR_BACKSLASH '\134'
1620: #define CHAR_RIGHT_SQUARE_BRACKET '\135'
1621: #define CHAR_CIRCUMFLEX_ACCENT '\136'
1622: #define CHAR_UNDERSCORE '\137'
1623: #define CHAR_GRAVE_ACCENT '\140'
1624: #define CHAR_a '\141'
1625: #define CHAR_b '\142'
1626: #define CHAR_c '\143'
1627: #define CHAR_d '\144'
1628: #define CHAR_e '\145'
1629: #define CHAR_f '\146'
1630: #define CHAR_g '\147'
1631: #define CHAR_h '\150'
1632: #define CHAR_i '\151'
1633: #define CHAR_j '\152'
1634: #define CHAR_k '\153'
1635: #define CHAR_l '\154'
1636: #define CHAR_m '\155'
1637: #define CHAR_n '\156'
1638: #define CHAR_o '\157'
1639: #define CHAR_p '\160'
1640: #define CHAR_q '\161'
1641: #define CHAR_r '\162'
1642: #define CHAR_s '\163'
1643: #define CHAR_t '\164'
1644: #define CHAR_u '\165'
1645: #define CHAR_v '\166'
1646: #define CHAR_w '\167'
1647: #define CHAR_x '\170'
1648: #define CHAR_y '\171'
1649: #define CHAR_z '\172'
1650: #define CHAR_LEFT_CURLY_BRACKET '\173'
1651: #define CHAR_VERTICAL_LINE '\174'
1652: #define CHAR_RIGHT_CURLY_BRACKET '\175'
1653: #define CHAR_TILDE '\176'
1654:
1655: #define STR_HT "\011"
1656: #define STR_VT "\013"
1657: #define STR_FF "\014"
1658: #define STR_CR "\015"
1659: #define STR_NL "\012"
1660: #define STR_BS "\010"
1661: #define STR_BEL "\007"
1662: #define STR_ESC "\033"
1663: #define STR_DEL "\177"
1664:
1665: #define STR_SPACE "\040"
1666: #define STR_EXCLAMATION_MARK "\041"
1667: #define STR_QUOTATION_MARK "\042"
1668: #define STR_NUMBER_SIGN "\043"
1669: #define STR_DOLLAR_SIGN "\044"
1670: #define STR_PERCENT_SIGN "\045"
1671: #define STR_AMPERSAND "\046"
1672: #define STR_APOSTROPHE "\047"
1673: #define STR_LEFT_PARENTHESIS "\050"
1674: #define STR_RIGHT_PARENTHESIS "\051"
1675: #define STR_ASTERISK "\052"
1676: #define STR_PLUS "\053"
1677: #define STR_COMMA "\054"
1678: #define STR_MINUS "\055"
1679: #define STR_DOT "\056"
1680: #define STR_SLASH "\057"
1681: #define STR_0 "\060"
1682: #define STR_1 "\061"
1683: #define STR_2 "\062"
1684: #define STR_3 "\063"
1685: #define STR_4 "\064"
1686: #define STR_5 "\065"
1687: #define STR_6 "\066"
1688: #define STR_7 "\067"
1689: #define STR_8 "\070"
1690: #define STR_9 "\071"
1691: #define STR_COLON "\072"
1692: #define STR_SEMICOLON "\073"
1693: #define STR_LESS_THAN_SIGN "\074"
1694: #define STR_EQUALS_SIGN "\075"
1695: #define STR_GREATER_THAN_SIGN "\076"
1696: #define STR_QUESTION_MARK "\077"
1697: #define STR_COMMERCIAL_AT "\100"
1698: #define STR_A "\101"
1699: #define STR_B "\102"
1700: #define STR_C "\103"
1701: #define STR_D "\104"
1702: #define STR_E "\105"
1703: #define STR_F "\106"
1704: #define STR_G "\107"
1705: #define STR_H "\110"
1706: #define STR_I "\111"
1707: #define STR_J "\112"
1708: #define STR_K "\113"
1709: #define STR_L "\114"
1710: #define STR_M "\115"
1711: #define STR_N "\116"
1712: #define STR_O "\117"
1713: #define STR_P "\120"
1714: #define STR_Q "\121"
1715: #define STR_R "\122"
1716: #define STR_S "\123"
1717: #define STR_T "\124"
1718: #define STR_U "\125"
1719: #define STR_V "\126"
1720: #define STR_W "\127"
1721: #define STR_X "\130"
1722: #define STR_Y "\131"
1723: #define STR_Z "\132"
1724: #define STR_LEFT_SQUARE_BRACKET "\133"
1725: #define STR_BACKSLASH "\134"
1726: #define STR_RIGHT_SQUARE_BRACKET "\135"
1727: #define STR_CIRCUMFLEX_ACCENT "\136"
1728: #define STR_UNDERSCORE "\137"
1729: #define STR_GRAVE_ACCENT "\140"
1730: #define STR_a "\141"
1731: #define STR_b "\142"
1732: #define STR_c "\143"
1733: #define STR_d "\144"
1734: #define STR_e "\145"
1735: #define STR_f "\146"
1736: #define STR_g "\147"
1737: #define STR_h "\150"
1738: #define STR_i "\151"
1739: #define STR_j "\152"
1740: #define STR_k "\153"
1741: #define STR_l "\154"
1742: #define STR_m "\155"
1743: #define STR_n "\156"
1744: #define STR_o "\157"
1745: #define STR_p "\160"
1746: #define STR_q "\161"
1747: #define STR_r "\162"
1748: #define STR_s "\163"
1749: #define STR_t "\164"
1750: #define STR_u "\165"
1751: #define STR_v "\166"
1752: #define STR_w "\167"
1753: #define STR_x "\170"
1754: #define STR_y "\171"
1755: #define STR_z "\172"
1756: #define STR_LEFT_CURLY_BRACKET "\173"
1757: #define STR_VERTICAL_LINE "\174"
1758: #define STR_RIGHT_CURLY_BRACKET "\175"
1759: #define STR_TILDE "\176"
1760:
1761: #define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1762: #define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1763: #define STRING_F0 STR_F "\0"
1764: #define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
1765: #define STRING_MARK0 STR_M STR_A STR_R STR_K "\0"
1766: #define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
1767: #define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
1768: #define STRING_THEN STR_T STR_H STR_E STR_N
1769:
1770: #define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
1771: #define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
1772: #define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
1773: #define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
1774: #define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
1775: #define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
1776: #define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
1777: #define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
1778: #define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
1779: #define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
1780: #define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
1781: #define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
1782: #define STRING_word0 STR_w STR_o STR_r STR_d "\0"
1783: #define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
1784:
1785: #define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
1786:
1787: #define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
1788: #define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
1789: #define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1790: #define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1791: #define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1792: #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
1793: #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
1794: #define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1.1.1.2 ! misho 1795: #define STRING_UTF16_RIGHTPAR STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
! 1796: #define STRING_UTF32_RIGHTPAR STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
! 1797: #define STRING_UTF_RIGHTPAR STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1.1 misho 1798: #define STRING_UCP_RIGHTPAR STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1799: #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
1800:
1.1.1.2 ! misho 1801: #endif /* SUPPORT_UTF */
1.1 misho 1802:
1803: /* Escape items that are just an encoding of a particular data value. */
1804:
1805: #ifndef ESC_e
1806: #define ESC_e CHAR_ESC
1807: #endif
1808:
1809: #ifndef ESC_f
1810: #define ESC_f CHAR_FF
1811: #endif
1812:
1813: #ifndef ESC_n
1.1.1.2 ! misho 1814: #define ESC_n CHAR_LF
1.1 misho 1815: #endif
1816:
1817: #ifndef ESC_r
1818: #define ESC_r CHAR_CR
1819: #endif
1820:
1821: /* We can't officially use ESC_t because it is a POSIX reserved identifier
1822: (presumably because of all the others like size_t). */
1823:
1824: #ifndef ESC_tee
1825: #define ESC_tee CHAR_HT
1826: #endif
1827:
1828: /* Codes for different types of Unicode property */
1829:
1830: #define PT_ANY 0 /* Any property - matches all chars */
1831: #define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
1832: #define PT_GC 2 /* Specified general characteristic (e.g. L) */
1833: #define PT_PC 3 /* Specified particular characteristic (e.g. Lu) */
1834: #define PT_SC 4 /* Script (e.g. Han) */
1835: #define PT_ALNUM 5 /* Alphanumeric - the union of L and N */
1836: #define PT_SPACE 6 /* Perl space - Z plus 9,10,12,13 */
1837: #define PT_PXSPACE 7 /* POSIX space - Z plus 9,10,11,12,13 */
1838: #define PT_WORD 8 /* Word - L plus N plus underscore */
1.1.1.2 ! misho 1839: #define PT_CLIST 9 /* Pseudo-property: match character list */
1.1 misho 1840:
1841: /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1.1.1.2 ! misho 1842: contain characters with values greater than 255. */
1.1 misho 1843:
1844: #define XCL_NOT 0x01 /* Flag: this is a negative class */
1845: #define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
1846:
1847: #define XCL_END 0 /* Marks end of individual items */
1848: #define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
1849: #define XCL_RANGE 2 /* A range (two multibyte chars) follows */
1850: #define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
1851: #define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
1852:
1853: /* These are escaped items that aren't just an encoding of a particular data
1854: value such as \n. They must have non-zero values, as check_escape() returns
1.1.1.2 ! misho 1855: 0 for a data character. Also, they must appear in the same order as in the opcode
1.1 misho 1856: definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1857: corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1.1.1.2 ! misho 1858: used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
! 1859: non-DOTALL mode, "." behaves like \N.
1.1 misho 1860:
1861: The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1.1.1.2 ! misho 1862: when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1.1 misho 1863: They must be contiguous, and remain in order so that the replacements can be
1864: looked up from a table.
1865:
1.1.1.2 ! misho 1866: Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
! 1867: check_escape(). There are two tests in the code for an escape
1.1 misho 1868: greater than ESC_b and less than ESC_Z to detect the types that may be
1869: repeated. These are the types that consume characters. If any new escapes are
1870: put in between that don't consume a character, that code will have to change.
1871: */
1872:
1873: enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1874: ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1875: ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1876: ESC_E, ESC_Q, ESC_g, ESC_k,
1.1.1.2 ! misho 1877: ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1.1 misho 1878:
1879: /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1880: OP_EOD must correspond in order to the list of escapes immediately above.
1881:
1882: *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1883: that follow must also be updated to match. There are also tables called
1884: "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1885:
1886: enum {
1887: OP_END, /* 0 End of pattern */
1888:
1889: /* Values corresponding to backslashed metacharacters */
1890:
1891: OP_SOD, /* 1 Start of data: \A */
1892: OP_SOM, /* 2 Start of match (subject + offset): \G */
1893: OP_SET_SOM, /* 3 Set start of match (\K) */
1894: OP_NOT_WORD_BOUNDARY, /* 4 \B */
1895: OP_WORD_BOUNDARY, /* 5 \b */
1896: OP_NOT_DIGIT, /* 6 \D */
1897: OP_DIGIT, /* 7 \d */
1898: OP_NOT_WHITESPACE, /* 8 \S */
1899: OP_WHITESPACE, /* 9 \s */
1900: OP_NOT_WORDCHAR, /* 10 \W */
1901: OP_WORDCHAR, /* 11 \w */
1.1.1.2 ! misho 1902:
! 1903: OP_ANY, /* 12 Match any character except newline (\N) */
1.1 misho 1904: OP_ALLANY, /* 13 Match any character */
1905: OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1906: OP_NOTPROP, /* 15 \P (not Unicode property) */
1907: OP_PROP, /* 16 \p (Unicode property) */
1908: OP_ANYNL, /* 17 \R (any newline sequence) */
1909: OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
1910: OP_HSPACE, /* 19 \h (horizontal whitespace) */
1911: OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
1912: OP_VSPACE, /* 21 \v (vertical whitespace) */
1913: OP_EXTUNI, /* 22 \X (extended Unicode sequence */
1.1.1.2 ! misho 1914: OP_EODN, /* 23 End of data or \n at end of data (\Z) */
! 1915: OP_EOD, /* 24 End of data (\z) */
1.1 misho 1916:
1.1.1.2 ! misho 1917: OP_CIRC, /* 25 Start of line - not multiline */
! 1918: OP_CIRCM, /* 26 Start of line - multiline */
! 1919: OP_DOLL, /* 27 End of line - not multiline */
! 1920: OP_DOLLM, /* 28 End of line - multiline */
! 1921: OP_CHAR, /* 29 Match one character, casefully */
! 1922: OP_CHARI, /* 30 Match one character, caselessly */
! 1923: OP_NOT, /* 31 Match one character, not the given one, casefully */
! 1924: OP_NOTI, /* 32 Match one character, not the given one, caselessly */
! 1925:
! 1926: /* The following sets of 13 opcodes must always be kept in step because
! 1927: the offset from the first one is used to generate the others. */
! 1928:
! 1929: /**** Single characters, caseful, must precede the caseless ones ****/
! 1930:
! 1931: OP_STAR, /* 33 The maximizing and minimizing versions of */
! 1932: OP_MINSTAR, /* 34 these six opcodes must come in pairs, with */
! 1933: OP_PLUS, /* 35 the minimizing one second. */
! 1934: OP_MINPLUS, /* 36 */
! 1935: OP_QUERY, /* 37 */
! 1936: OP_MINQUERY, /* 38 */
! 1937:
! 1938: OP_UPTO, /* 39 From 0 to n matches of one character, caseful*/
! 1939: OP_MINUPTO, /* 40 */
! 1940: OP_EXACT, /* 41 Exactly n matches */
! 1941:
! 1942: OP_POSSTAR, /* 42 Possessified star, caseful */
! 1943: OP_POSPLUS, /* 43 Possessified plus, caseful */
! 1944: OP_POSQUERY, /* 44 Posesssified query, caseful */
! 1945: OP_POSUPTO, /* 45 Possessified upto, caseful */
! 1946:
! 1947: /**** Single characters, caseless, must follow the caseful ones */
! 1948:
! 1949: OP_STARI, /* 46 */
! 1950: OP_MINSTARI, /* 47 */
! 1951: OP_PLUSI, /* 48 */
! 1952: OP_MINPLUSI, /* 49 */
! 1953: OP_QUERYI, /* 50 */
! 1954: OP_MINQUERYI, /* 51 */
! 1955:
! 1956: OP_UPTOI, /* 52 From 0 to n matches of one character, caseless */
! 1957: OP_MINUPTOI, /* 53 */
! 1958: OP_EXACTI, /* 54 */
! 1959:
! 1960: OP_POSSTARI, /* 55 Possessified star, caseless */
! 1961: OP_POSPLUSI, /* 56 Possessified plus, caseless */
! 1962: OP_POSQUERYI, /* 57 Posesssified query, caseless */
! 1963: OP_POSUPTOI, /* 58 Possessified upto, caseless */
! 1964:
! 1965: /**** The negated ones must follow the non-negated ones, and match them ****/
! 1966: /**** Negated single character, caseful; must precede the caseless ones ****/
! 1967:
! 1968: OP_NOTSTAR, /* 59 The maximizing and minimizing versions of */
! 1969: OP_NOTMINSTAR, /* 60 these six opcodes must come in pairs, with */
! 1970: OP_NOTPLUS, /* 61 the minimizing one second. They must be in */
! 1971: OP_NOTMINPLUS, /* 62 exactly the same order as those above. */
! 1972: OP_NOTQUERY, /* 63 */
! 1973: OP_NOTMINQUERY, /* 64 */
! 1974:
! 1975: OP_NOTUPTO, /* 65 From 0 to n matches, caseful */
! 1976: OP_NOTMINUPTO, /* 66 */
! 1977: OP_NOTEXACT, /* 67 Exactly n matches */
! 1978:
! 1979: OP_NOTPOSSTAR, /* 68 Possessified versions, caseful */
! 1980: OP_NOTPOSPLUS, /* 69 */
! 1981: OP_NOTPOSQUERY, /* 70 */
! 1982: OP_NOTPOSUPTO, /* 71 */
! 1983:
! 1984: /**** Negated single character, caseless; must follow the caseful ones ****/
! 1985:
! 1986: OP_NOTSTARI, /* 72 */
! 1987: OP_NOTMINSTARI, /* 73 */
! 1988: OP_NOTPLUSI, /* 74 */
! 1989: OP_NOTMINPLUSI, /* 75 */
! 1990: OP_NOTQUERYI, /* 76 */
! 1991: OP_NOTMINQUERYI, /* 77 */
! 1992:
! 1993: OP_NOTUPTOI, /* 78 From 0 to n matches, caseless */
! 1994: OP_NOTMINUPTOI, /* 79 */
! 1995: OP_NOTEXACTI, /* 80 Exactly n matches */
! 1996:
! 1997: OP_NOTPOSSTARI, /* 81 Possessified versions, caseless */
! 1998: OP_NOTPOSPLUSI, /* 82 */
! 1999: OP_NOTPOSQUERYI, /* 83 */
! 2000: OP_NOTPOSUPTOI, /* 84 */
! 2001:
! 2002: /**** Character types ****/
! 2003:
! 2004: OP_TYPESTAR, /* 85 The maximizing and minimizing versions of */
! 2005: OP_TYPEMINSTAR, /* 86 these six opcodes must come in pairs, with */
! 2006: OP_TYPEPLUS, /* 87 the minimizing one second. These codes must */
! 2007: OP_TYPEMINPLUS, /* 88 be in exactly the same order as those above. */
! 2008: OP_TYPEQUERY, /* 89 */
! 2009: OP_TYPEMINQUERY, /* 90 */
! 2010:
! 2011: OP_TYPEUPTO, /* 91 From 0 to n matches */
! 2012: OP_TYPEMINUPTO, /* 92 */
! 2013: OP_TYPEEXACT, /* 93 Exactly n matches */
! 2014:
! 2015: OP_TYPEPOSSTAR, /* 94 Possessified versions */
! 2016: OP_TYPEPOSPLUS, /* 95 */
! 2017: OP_TYPEPOSQUERY, /* 96 */
! 2018: OP_TYPEPOSUPTO, /* 97 */
! 2019:
! 2020: /* These are used for character classes and back references; only the
! 2021: first six are the same as the sets above. */
! 2022:
! 2023: OP_CRSTAR, /* 98 The maximizing and minimizing versions of */
! 2024: OP_CRMINSTAR, /* 99 all these opcodes must come in pairs, with */
! 2025: OP_CRPLUS, /* 100 the minimizing one second. These codes must */
! 2026: OP_CRMINPLUS, /* 101 be in exactly the same order as those above. */
! 2027: OP_CRQUERY, /* 102 */
! 2028: OP_CRMINQUERY, /* 103 */
! 2029:
! 2030: OP_CRRANGE, /* 104 These are different to the three sets above. */
! 2031: OP_CRMINRANGE, /* 105 */
! 2032:
! 2033: /* End of quantifier opcodes */
! 2034:
! 2035: OP_CLASS, /* 106 Match a character class, chars < 256 only */
! 2036: OP_NCLASS, /* 107 Same, but the bitmap was created from a negative
! 2037: class - the difference is relevant only when a
! 2038: character > 255 is encountered. */
! 2039: OP_XCLASS, /* 108 Extended class for handling > 255 chars within the
! 2040: class. This does both positive and negative. */
! 2041: OP_REF, /* 109 Match a back reference, casefully */
! 2042: OP_REFI, /* 110 Match a back reference, caselessly */
! 2043: OP_RECURSE, /* 111 Match a numbered subpattern (possibly recursive) */
! 2044: OP_CALLOUT, /* 112 Call out to external function if provided */
! 2045:
! 2046: OP_ALT, /* 113 Start of alternation */
! 2047: OP_KET, /* 114 End of group that doesn't have an unbounded repeat */
! 2048: OP_KETRMAX, /* 115 These two must remain together and in this */
! 2049: OP_KETRMIN, /* 116 order. They are for groups the repeat for ever. */
! 2050: OP_KETRPOS, /* 117 Possessive unlimited repeat. */
! 2051:
! 2052: /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
! 2053: asserts must remain in order. */
! 2054:
! 2055: OP_REVERSE, /* 118 Move pointer back - used in lookbehind assertions */
! 2056: OP_ASSERT, /* 119 Positive lookahead */
! 2057: OP_ASSERT_NOT, /* 120 Negative lookahead */
! 2058: OP_ASSERTBACK, /* 121 Positive lookbehind */
! 2059: OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
! 2060:
! 2061: /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
! 2062: after the assertions, with ONCE first, as there's a test for >= ONCE for a
! 2063: subpattern that isn't an assertion. The POS versions must immediately follow
! 2064: the non-POS versions in each case. */
! 2065:
! 2066: OP_ONCE, /* 123 Atomic group, contains captures */
! 2067: OP_ONCE_NC, /* 124 Atomic group containing no captures */
! 2068: OP_BRA, /* 125 Start of non-capturing bracket */
! 2069: OP_BRAPOS, /* 126 Ditto, with unlimited, possessive repeat */
! 2070: OP_CBRA, /* 127 Start of capturing bracket */
! 2071: OP_CBRAPOS, /* 128 Ditto, with unlimited, possessive repeat */
! 2072: OP_COND, /* 129 Conditional group */
1.1 misho 2073:
1.1.1.2 ! misho 2074: /* These five must follow the previous five, in the same order. There's a
1.1 misho 2075: check for >= SBRA to distinguish the two sets. */
2076:
1.1.1.2 ! misho 2077: OP_SBRA, /* 130 Start of non-capturing bracket, check empty */
! 2078: OP_SBRAPOS, /* 131 Ditto, with unlimited, possessive repeat */
! 2079: OP_SCBRA, /* 132 Start of capturing bracket, check empty */
! 2080: OP_SCBRAPOS, /* 133 Ditto, with unlimited, possessive repeat */
! 2081: OP_SCOND, /* 134 Conditional group, check empty */
1.1 misho 2082:
2083: /* The next two pairs must (respectively) be kept together. */
2084:
1.1.1.2 ! misho 2085: OP_CREF, /* 135 Used to hold a capture number as condition */
! 2086: OP_NCREF, /* 136 Same, but generated by a name reference*/
! 2087: OP_RREF, /* 137 Used to hold a recursion number as condition */
! 2088: OP_NRREF, /* 138 Same, but generated by a name reference*/
! 2089: OP_DEF, /* 139 The DEFINE condition */
! 2090:
! 2091: OP_BRAZERO, /* 140 These two must remain together and in this */
! 2092: OP_BRAMINZERO, /* 141 order. */
! 2093: OP_BRAPOSZERO, /* 142 */
1.1 misho 2094:
2095: /* These are backtracking control verbs */
2096:
1.1.1.2 ! misho 2097: OP_MARK, /* 143 always has an argument */
! 2098: OP_PRUNE, /* 144 */
! 2099: OP_PRUNE_ARG, /* 145 same, but with argument */
! 2100: OP_SKIP, /* 146 */
! 2101: OP_SKIP_ARG, /* 147 same, but with argument */
! 2102: OP_THEN, /* 148 */
! 2103: OP_THEN_ARG, /* 149 same, but with argument */
! 2104: OP_COMMIT, /* 150 */
1.1 misho 2105:
2106: /* These are forced failure and success verbs */
2107:
1.1.1.2 ! misho 2108: OP_FAIL, /* 151 */
! 2109: OP_ACCEPT, /* 152 */
! 2110: OP_ASSERT_ACCEPT, /* 153 Used inside assertions */
! 2111: OP_CLOSE, /* 154 Used before OP_ACCEPT to close open captures */
1.1 misho 2112:
2113: /* This is used to skip a subpattern with a {0} quantifier */
2114:
1.1.1.2 ! misho 2115: OP_SKIPZERO, /* 155 */
1.1 misho 2116:
2117: /* This is not an opcode, but is used to check that tables indexed by opcode
2118: are the correct length, in order to catch updating errors - there have been
2119: some in the past. */
2120:
2121: OP_TABLE_LENGTH
2122: };
2123:
2124: /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2125: definitions that follow must also be updated to match. There are also tables
2126: called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
2127:
2128:
2129: /* This macro defines textual names for all the opcodes. These are used only
1.1.1.2 ! misho 2130: for debugging, and some of them are only partial names. The macro is referenced
! 2131: only in pcre_printint.c, which fills out the full names in many cases (and in
! 2132: some cases doesn't actually use these names at all). */
1.1 misho 2133:
2134: #define OP_NAME_LIST \
2135: "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
2136: "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
2137: "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
2138: "extuni", "\\Z", "\\z", \
1.1.1.2 ! misho 2139: "^", "^", "$", "$", "char", "chari", "not", "noti", \
! 2140: "*", "*?", "+", "+?", "?", "??", \
! 2141: "{", "{", "{", \
1.1 misho 2142: "*+","++", "?+", "{", \
1.1.1.2 ! misho 2143: "*", "*?", "+", "+?", "?", "??", \
! 2144: "{", "{", "{", \
! 2145: "*+","++", "?+", "{", \
! 2146: "*", "*?", "+", "+?", "?", "??", \
! 2147: "{", "{", "{", \
! 2148: "*+","++", "?+", "{", \
! 2149: "*", "*?", "+", "+?", "?", "??", \
! 2150: "{", "{", "{", \
1.1 misho 2151: "*+","++", "?+", "{", \
2152: "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
2153: "*+","++", "?+", "{", \
2154: "*", "*?", "+", "+?", "?", "??", "{", "{", \
1.1.1.2 ! misho 2155: "class", "nclass", "xclass", "Ref", "Refi", \
! 2156: "Recurse", "Callout", \
! 2157: "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos", \
! 2158: "Reverse", "Assert", "Assert not", "AssertB", "AssertB not", \
! 2159: "Once", "Once_NC", \
! 2160: "Bra", "BraPos", "CBra", "CBraPos", \
! 2161: "Cond", \
! 2162: "SBra", "SBraPos", "SCBra", "SCBraPos", \
! 2163: "SCond", \
1.1 misho 2164: "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def", \
1.1.1.2 ! misho 2165: "Brazero", "Braminzero", "Braposzero", \
1.1 misho 2166: "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
1.1.1.2 ! misho 2167: "*THEN", "*THEN", "*COMMIT", "*FAIL", \
! 2168: "*ACCEPT", "*ASSERT_ACCEPT", \
1.1 misho 2169: "Close", "Skip zero"
2170:
2171:
2172: /* This macro defines the length of fixed length operations in the compiled
2173: regex. The lengths are used when searching for specific things, and also in the
2174: debugging printing of a compiled regex. We use a macro so that it can be
2175: defined close to the definitions of the opcodes themselves.
2176:
2177: As things have been extended, some of these are no longer fixed lenths, but are
2178: minima instead. For example, the length of a single-character repeat may vary
2179: in UTF-8 mode. The code that uses this table must know about such things. */
2180:
2181: #define OP_LENGTHS \
2182: 1, /* End */ \
2183: 1, 1, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
2184: 1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
2185: 1, 1, 1, /* Any, AllAny, Anybyte */ \
2186: 3, 3, /* \P, \p */ \
2187: 1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
2188: 1, /* \X */ \
1.1.1.2 ! misho 2189: 1, 1, 1, 1, 1, 1, /* \Z, \z, ^, ^M, $, $M */ \
1.1 misho 2190: 2, /* Char - the minimum length */ \
1.1.1.2 ! misho 2191: 2, /* Chari - the minimum length */ \
1.1 misho 2192: 2, /* not */ \
1.1.1.2 ! misho 2193: 2, /* noti */ \
! 2194: /* Positive single-char repeats ** These are */ \
! 2195: 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
! 2196: 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto, minupto ** mode */ \
! 2197: 2+IMM2_SIZE, /* exact */ \
! 2198: 2, 2, 2, 2+IMM2_SIZE, /* *+, ++, ?+, upto+ */ \
! 2199: 2, 2, 2, 2, 2, 2, /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8 */ \
! 2200: 2+IMM2_SIZE, 2+IMM2_SIZE, /* upto I, minupto I */ \
! 2201: 2+IMM2_SIZE, /* exact I */ \
! 2202: 2, 2, 2, 2+IMM2_SIZE, /* *+I, ++I, ?+I, upto+I */ \
1.1 misho 2203: /* Negative single-char repeats - only for chars < 256 */ \
2204: 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
1.1.1.2 ! misho 2205: 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto, minupto */ \
! 2206: 2+IMM2_SIZE, /* NOT exact */ \
! 2207: 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *, +, ?, upto */ \
! 2208: 2, 2, 2, 2, 2, 2, /* NOT *I, *?I, +I, +?I, ?I, ??I */ \
! 2209: 2+IMM2_SIZE, 2+IMM2_SIZE, /* NOT upto I, minupto I */ \
! 2210: 2+IMM2_SIZE, /* NOT exact I */ \
! 2211: 2, 2, 2, 2+IMM2_SIZE, /* Possessive NOT *I, +I, ?I, upto I */ \
1.1 misho 2212: /* Positive type repeats */ \
2213: 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
1.1.1.2 ! misho 2214: 2+IMM2_SIZE, 2+IMM2_SIZE, /* Type upto, minupto */ \
! 2215: 2+IMM2_SIZE, /* Type exact */ \
! 2216: 2, 2, 2, 2+IMM2_SIZE, /* Possessive *+, ++, ?+, upto+ */ \
1.1 misho 2217: /* Character class & ref repeats */ \
2218: 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
1.1.1.2 ! misho 2219: 1+2*IMM2_SIZE, 1+2*IMM2_SIZE, /* CRRANGE, CRMINRANGE */ \
! 2220: 1+(32/sizeof(pcre_uchar)), /* CLASS */ \
! 2221: 1+(32/sizeof(pcre_uchar)), /* NCLASS */ \
1.1 misho 2222: 0, /* XCLASS - variable length */ \
1.1.1.2 ! misho 2223: 1+IMM2_SIZE, /* REF */ \
! 2224: 1+IMM2_SIZE, /* REFI */ \
1.1 misho 2225: 1+LINK_SIZE, /* RECURSE */ \
2226: 2+2*LINK_SIZE, /* CALLOUT */ \
2227: 1+LINK_SIZE, /* Alt */ \
2228: 1+LINK_SIZE, /* Ket */ \
2229: 1+LINK_SIZE, /* KetRmax */ \
2230: 1+LINK_SIZE, /* KetRmin */ \
1.1.1.2 ! misho 2231: 1+LINK_SIZE, /* KetRpos */ \
! 2232: 1+LINK_SIZE, /* Reverse */ \
1.1 misho 2233: 1+LINK_SIZE, /* Assert */ \
2234: 1+LINK_SIZE, /* Assert not */ \
2235: 1+LINK_SIZE, /* Assert behind */ \
2236: 1+LINK_SIZE, /* Assert behind not */ \
2237: 1+LINK_SIZE, /* ONCE */ \
1.1.1.2 ! misho 2238: 1+LINK_SIZE, /* ONCE_NC */ \
1.1 misho 2239: 1+LINK_SIZE, /* BRA */ \
1.1.1.2 ! misho 2240: 1+LINK_SIZE, /* BRAPOS */ \
! 2241: 1+LINK_SIZE+IMM2_SIZE, /* CBRA */ \
! 2242: 1+LINK_SIZE+IMM2_SIZE, /* CBRAPOS */ \
1.1 misho 2243: 1+LINK_SIZE, /* COND */ \
2244: 1+LINK_SIZE, /* SBRA */ \
1.1.1.2 ! misho 2245: 1+LINK_SIZE, /* SBRAPOS */ \
! 2246: 1+LINK_SIZE+IMM2_SIZE, /* SCBRA */ \
! 2247: 1+LINK_SIZE+IMM2_SIZE, /* SCBRAPOS */ \
1.1 misho 2248: 1+LINK_SIZE, /* SCOND */ \
1.1.1.2 ! misho 2249: 1+IMM2_SIZE, 1+IMM2_SIZE, /* CREF, NCREF */ \
! 2250: 1+IMM2_SIZE, 1+IMM2_SIZE, /* RREF, NRREF */ \
1.1 misho 2251: 1, /* DEF */ \
1.1.1.2 ! misho 2252: 1, 1, 1, /* BRAZERO, BRAMINZERO, BRAPOSZERO */ \
1.1 misho 2253: 3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
2254: 1, 3, /* SKIP, SKIP_ARG */ \
1.1.1.2 ! misho 2255: 1, 3, /* THEN, THEN_ARG */ \
! 2256: 1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
! 2257: 1+IMM2_SIZE, 1 /* CLOSE, SKIPZERO */
1.1 misho 2258:
2259: /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2260: condition. */
2261:
2262: #define RREF_ANY 0xffff
2263:
2264: /* Compile time error code numbers. They are given names so that they can more
2265: easily be tracked. When a new number is added, the table called eint in
2266: pcreposix.c must be updated. */
2267:
2268: enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
2269: ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
2270: ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
2271: ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2272: ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2273: ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
1.1.1.2 ! misho 2274: ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
! 2275: ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERRCOUNT };
! 2276:
! 2277: /* JIT compiling modes. The function list is indexed by them. */
! 2278: enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
! 2279: JIT_NUMBER_OF_COMPILE_MODES };
1.1 misho 2280:
2281: /* The real format of the start of the pcre block; the index of names and the
2282: code vector run on as long as necessary after the end. We store an explicit
2283: offset to the name table so that if a regex is compiled on one host, saved, and
2284: then run on another where the size of pointers is different, all might still
2285: be well. For the case of compiled-on-4 and run-on-8, we include an extra
2286: pointer that is always NULL. For future-proofing, a few dummy fields were
2287: originally included - even though you can never get this planning right - but
2288: there is only one left now.
2289:
2290: NOTE NOTE NOTE:
2291: Because people can now save and re-use compiled patterns, any additions to this
2292: structure should be made at the end, and something earlier (e.g. a new
2293: flag in the options or one of the dummy fields) should indicate that the new
2294: fields are present. Currently PCRE always sets the dummy fields to zero.
2295: NOTE NOTE NOTE
2296: */
2297:
1.1.1.2 ! misho 2298: #if defined COMPILE_PCRE8
! 2299: #define REAL_PCRE real_pcre
! 2300: #elif defined COMPILE_PCRE16
! 2301: #define REAL_PCRE real_pcre16
! 2302: #elif defined COMPILE_PCRE32
! 2303: #define REAL_PCRE real_pcre32
! 2304: #endif
! 2305:
! 2306: /* It is necessary to fork the struct for 32 bit, since it needs to use
! 2307: * pcre_uchar for first_char and req_char. Can't put an ifdef inside the
! 2308: * typedef since pcretest needs access to the struct of the 8-, 16-
! 2309: * and 32-bit variants. */
! 2310:
! 2311: typedef struct real_pcre8_or_16 {
1.1 misho 2312: pcre_uint32 magic_number;
2313: pcre_uint32 size; /* Total that was malloced */
2314: pcre_uint32 options; /* Public options */
2315: pcre_uint16 flags; /* Private flags */
1.1.1.2 ! misho 2316: pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
! 2317: pcre_uint16 top_bracket; /* Highest numbered group */
! 2318: pcre_uint16 top_backref; /* Highest numbered back reference */
! 2319: pcre_uint16 first_char; /* Starting character */
! 2320: pcre_uint16 req_char; /* This character must be seen */
1.1 misho 2321: pcre_uint16 name_table_offset; /* Offset to name table that follows */
2322: pcre_uint16 name_entry_size; /* Size of any name items */
2323: pcre_uint16 name_count; /* Number of name items */
2324: pcre_uint16 ref_count; /* Reference count */
1.1.1.2 ! misho 2325: const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
! 2326: const pcre_uint8 *nullpad; /* NULL padding */
! 2327: } real_pcre8_or_16;
! 2328:
! 2329: typedef struct real_pcre8_or_16 real_pcre;
! 2330: typedef struct real_pcre8_or_16 real_pcre16;
1.1 misho 2331:
1.1.1.2 ! misho 2332: typedef struct real_pcre32 {
! 2333: pcre_uint32 magic_number;
! 2334: pcre_uint32 size; /* Total that was malloced */
! 2335: pcre_uint32 options; /* Public options */
! 2336: pcre_uint16 flags; /* Private flags */
! 2337: pcre_uint16 max_lookbehind; /* Longest lookbehind (characters) */
! 2338: pcre_uint16 top_bracket; /* Highest numbered group */
! 2339: pcre_uint16 top_backref; /* Highest numbered back reference */
! 2340: pcre_uint32 first_char; /* Starting character */
! 2341: pcre_uint32 req_char; /* This character must be seen */
! 2342: pcre_uint16 name_table_offset; /* Offset to name table that follows */
! 2343: pcre_uint16 name_entry_size; /* Size of any name items */
! 2344: pcre_uint16 name_count; /* Number of name items */
! 2345: pcre_uint16 ref_count; /* Reference count */
! 2346: pcre_uint16 dummy1; /* for later expansion */
! 2347: pcre_uint16 dummy2; /* for later expansion */
! 2348: const pcre_uint8 *tables; /* Pointer to tables or NULL for std */
! 2349: void *nullpad; /* for later expansion */
! 2350: } real_pcre32;
! 2351:
! 2352: /* Assert that the size of REAL_PCRE is divisible by 8 */
! 2353: typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
! 2354:
! 2355: /* Needed in pcretest to access some fields in the real_pcre* structures
! 2356: * directly. They're unified for 8/16/32 bits since the structs only differ
! 2357: * after these fields; if that ever changes, need to fork those defines into
! 2358: * 8/16 and 32 bit versions. */
! 2359: #define REAL_PCRE_MAGIC(re) (((REAL_PCRE*)re)->magic_number)
! 2360: #define REAL_PCRE_SIZE(re) (((REAL_PCRE*)re)->size)
! 2361: #define REAL_PCRE_OPTIONS(re) (((REAL_PCRE*)re)->options)
! 2362: #define REAL_PCRE_FLAGS(re) (((REAL_PCRE*)re)->flags)
1.1 misho 2363:
2364: /* The format of the block used to store data from pcre_study(). The same
2365: remark (see NOTE above) about extending this structure applies. */
2366:
2367: typedef struct pcre_study_data {
2368: pcre_uint32 size; /* Total that was malloced */
2369: pcre_uint32 flags; /* Private flags */
1.1.1.2 ! misho 2370: pcre_uint8 start_bits[32]; /* Starting char bits */
1.1 misho 2371: pcre_uint32 minlength; /* Minimum subject length */
2372: } pcre_study_data;
2373:
2374: /* Structure for building a chain of open capturing subpatterns during
2375: compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2376: encountered. This is also used to identify subpatterns that contain recursive
2377: back references to themselves, so that they can be made atomic. */
2378:
2379: typedef struct open_capitem {
2380: struct open_capitem *next; /* Chain link */
2381: pcre_uint16 number; /* Capture number */
2382: pcre_uint16 flag; /* Set TRUE if recursive back ref */
2383: } open_capitem;
2384:
2385: /* Structure for passing "static" information around between the functions
2386: doing the compiling, so that they are thread-safe. */
2387:
2388: typedef struct compile_data {
1.1.1.2 ! misho 2389: const pcre_uint8 *lcc; /* Points to lower casing table */
! 2390: const pcre_uint8 *fcc; /* Points to case-flipping table */
! 2391: const pcre_uint8 *cbits; /* Points to character type table */
! 2392: const pcre_uint8 *ctypes; /* Points to table of type maps */
! 2393: const pcre_uchar *start_workspace;/* The start of working space */
! 2394: const pcre_uchar *start_code; /* The start of the compiled code */
! 2395: const pcre_uchar *start_pattern; /* The start of the pattern */
! 2396: const pcre_uchar *end_pattern; /* The end of the pattern */
! 2397: open_capitem *open_caps; /* Chain of open capture items */
! 2398: pcre_uchar *hwm; /* High watermark of workspace */
! 2399: pcre_uchar *name_table; /* The name/number table */
! 2400: int names_found; /* Number of entries so far */
! 2401: int name_entry_size; /* Size of each entry */
! 2402: int workspace_size; /* Size of workspace */
! 2403: unsigned int bracount; /* Count of capturing parens as we compile */
! 2404: int final_bracount; /* Saved value after first pass */
! 2405: int max_lookbehind; /* Maximum lookbehind (characters) */
! 2406: int top_backref; /* Maximum back reference */
! 2407: unsigned int backref_map; /* Bitmap of low back refs */
! 2408: int assert_depth; /* Depth of nested assertions */
! 2409: int external_options; /* External (initial) options */
! 2410: int external_flags; /* External flag bits to be set */
! 2411: int req_varyopt; /* "After variable item" flag for reqbyte */
! 2412: BOOL had_accept; /* (*ACCEPT) encountered */
! 2413: BOOL had_pruneorskip; /* (*PRUNE) or (*SKIP) encountered */
! 2414: BOOL check_lookbehind; /* Lookbehinds need later checking */
! 2415: int nltype; /* Newline type */
! 2416: int nllen; /* Newline string length */
! 2417: pcre_uchar nl[4]; /* Newline string when fixed length */
1.1 misho 2418: } compile_data;
2419:
2420: /* Structure for maintaining a chain of pointers to the currently incomplete
1.1.1.2 ! misho 2421: branches, for testing for left recursion while compiling. */
1.1 misho 2422:
2423: typedef struct branch_chain {
2424: struct branch_chain *outer;
1.1.1.2 ! misho 2425: pcre_uchar *current_branch;
1.1 misho 2426: } branch_chain;
2427:
2428: /* Structure for items in a linked list that represents an explicit recursive
1.1.1.2 ! misho 2429: call within the pattern; used by pcre_exec(). */
1.1 misho 2430:
2431: typedef struct recursion_info {
2432: struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
1.1.1.2 ! misho 2433: unsigned int group_num; /* Number of group that was called */
! 2434: int *offset_save; /* Pointer to start of saved offsets */
! 2435: int saved_max; /* Number of saved offsets */
! 2436: PCRE_PUCHAR subject_position; /* Position at start of recursion */
1.1 misho 2437: } recursion_info;
2438:
1.1.1.2 ! misho 2439: /* A similar structure for pcre_dfa_exec(). */
! 2440:
! 2441: typedef struct dfa_recursion_info {
! 2442: struct dfa_recursion_info *prevrec;
! 2443: int group_num;
! 2444: PCRE_PUCHAR subject_position;
! 2445: } dfa_recursion_info;
! 2446:
1.1 misho 2447: /* Structure for building a chain of data for holding the values of the subject
2448: pointer at the start of each subpattern, so as to detect when an empty string
1.1.1.2 ! misho 2449: has been matched by a subpattern - to break infinite loops; used by
! 2450: pcre_exec(). */
1.1 misho 2451:
2452: typedef struct eptrblock {
2453: struct eptrblock *epb_prev;
1.1.1.2 ! misho 2454: PCRE_PUCHAR epb_saved_eptr;
1.1 misho 2455: } eptrblock;
2456:
2457:
2458: /* Structure for passing "static" information around between the functions
2459: doing traditional NFA matching, so that they are thread-safe. */
2460:
2461: typedef struct match_data {
2462: unsigned long int match_call_count; /* As it says */
2463: unsigned long int match_limit; /* As it says */
2464: unsigned long int match_limit_recursion; /* As it says */
1.1.1.2 ! misho 2465: int *offset_vector; /* Offset vector */
! 2466: int offset_end; /* One past the end */
! 2467: int offset_max; /* The maximum usable for return data */
! 2468: int nltype; /* Newline type */
! 2469: int nllen; /* Newline string length */
! 2470: int name_count; /* Number of names in name table */
! 2471: int name_entry_size; /* Size of entry in names table */
! 2472: pcre_uchar *name_table; /* Table of names */
! 2473: pcre_uchar nl[4]; /* Newline string when fixed */
! 2474: const pcre_uint8 *lcc; /* Points to lower casing table */
! 2475: const pcre_uint8 *fcc; /* Points to case-flipping table */
! 2476: const pcre_uint8 *ctypes; /* Points to table of type maps */
! 2477: BOOL offset_overflow; /* Set if too many extractions */
! 2478: BOOL notbol; /* NOTBOL flag */
! 2479: BOOL noteol; /* NOTEOL flag */
! 2480: BOOL utf; /* UTF-8 / UTF-16 flag */
! 2481: BOOL jscript_compat; /* JAVASCRIPT_COMPAT flag */
! 2482: BOOL use_ucp; /* PCRE_UCP flag */
! 2483: BOOL endonly; /* Dollar not before final \n */
! 2484: BOOL notempty; /* Empty string match not wanted */
! 2485: BOOL notempty_atstart; /* Empty string match at start not wanted */
! 2486: BOOL hitend; /* Hit the end of the subject at some point */
! 2487: BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
! 2488: BOOL hasthen; /* Pattern contains (*THEN) */
! 2489: BOOL ignore_skip_arg; /* For re-run when SKIP name not found */
! 2490: const pcre_uchar *start_code; /* For use when recursing */
! 2491: PCRE_PUCHAR start_subject; /* Start of the subject string */
! 2492: PCRE_PUCHAR end_subject; /* End of the subject string */
! 2493: PCRE_PUCHAR start_match_ptr; /* Start of matched string */
! 2494: PCRE_PUCHAR end_match_ptr; /* Subject position at end match */
! 2495: PCRE_PUCHAR start_used_ptr; /* Earliest consulted character */
! 2496: int partial; /* PARTIAL options */
! 2497: int end_offset_top; /* Highwater mark at end of match */
! 2498: int capture_last; /* Most recent capture number */
! 2499: int start_offset; /* The start offset value */
! 2500: int match_function_type; /* Set for certain special calls of MATCH() */
! 2501: eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
! 2502: int eptrn; /* Next free eptrblock */
! 2503: recursion_info *recursive; /* Linked list of recursion data */
! 2504: void *callout_data; /* To pass back to callouts */
! 2505: const pcre_uchar *mark; /* Mark pointer to pass back on success */
! 2506: const pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
! 2507: const pcre_uchar *once_target; /* Where to back up to for atomic groups */
! 2508: #ifdef NO_RECURSE
! 2509: void *match_frames_base; /* For remembering malloc'd frames */
! 2510: #endif
1.1 misho 2511: } match_data;
2512:
2513: /* A similar structure is used for the same purpose by the DFA matching
2514: functions. */
2515:
2516: typedef struct dfa_match_data {
1.1.1.2 ! misho 2517: const pcre_uchar *start_code; /* Start of the compiled pattern */
! 2518: const pcre_uchar *start_subject ; /* Start of the subject string */
! 2519: const pcre_uchar *end_subject; /* End of subject string */
! 2520: const pcre_uchar *start_used_ptr; /* Earliest consulted character */
! 2521: const pcre_uint8 *tables; /* Character tables */
! 2522: int start_offset; /* The start offset value */
! 2523: int moptions; /* Match options */
! 2524: int poptions; /* Pattern options */
! 2525: int nltype; /* Newline type */
! 2526: int nllen; /* Newline string length */
! 2527: pcre_uchar nl[4]; /* Newline string when fixed */
! 2528: void *callout_data; /* To pass back to callouts */
! 2529: dfa_recursion_info *recursive; /* Linked list of recursion data */
1.1 misho 2530: } dfa_match_data;
2531:
2532: /* Bit definitions for entries in the pcre_ctypes table. */
2533:
2534: #define ctype_space 0x01
2535: #define ctype_letter 0x02
2536: #define ctype_digit 0x04
2537: #define ctype_xdigit 0x08
2538: #define ctype_word 0x10 /* alphanumeric or '_' */
2539: #define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
2540:
2541: /* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
2542: of bits for a class map. Some classes are built by combining these tables. */
2543:
2544: #define cbit_space 0 /* [:space:] or \s */
2545: #define cbit_xdigit 32 /* [:xdigit:] */
2546: #define cbit_digit 64 /* [:digit:] or \d */
2547: #define cbit_upper 96 /* [:upper:] */
2548: #define cbit_lower 128 /* [:lower:] */
2549: #define cbit_word 160 /* [:word:] or \w */
2550: #define cbit_graph 192 /* [:graph:] */
2551: #define cbit_print 224 /* [:print:] */
2552: #define cbit_punct 256 /* [:punct:] */
2553: #define cbit_cntrl 288 /* [:cntrl:] */
2554: #define cbit_length 320 /* Length of the cbits table */
2555:
2556: /* Offsets of the various tables from the base tables pointer, and
2557: total length. */
2558:
2559: #define lcc_offset 0
2560: #define fcc_offset 256
2561: #define cbits_offset 512
2562: #define ctypes_offset (cbits_offset + cbit_length)
2563: #define tables_length (ctypes_offset + 256)
2564:
1.1.1.2 ! misho 2565: /* Internal function and data prefixes. */
! 2566:
! 2567: #if defined COMPILE_PCRE8
! 2568: #ifndef PUBL
! 2569: #define PUBL(name) pcre_##name
! 2570: #endif
! 2571: #ifndef PRIV
! 2572: #define PRIV(name) _pcre_##name
! 2573: #endif
! 2574: #elif defined COMPILE_PCRE16
! 2575: #ifndef PUBL
! 2576: #define PUBL(name) pcre16_##name
! 2577: #endif
! 2578: #ifndef PRIV
! 2579: #define PRIV(name) _pcre16_##name
! 2580: #endif
! 2581: #elif defined COMPILE_PCRE32
! 2582: #ifndef PUBL
! 2583: #define PUBL(name) pcre32_##name
! 2584: #endif
! 2585: #ifndef PRIV
! 2586: #define PRIV(name) _pcre32_##name
! 2587: #endif
! 2588: #else
! 2589: #error Unsupported compiling mode
! 2590: #endif /* COMPILE_PCRE[8|16|32] */
! 2591:
1.1 misho 2592: /* Layout of the UCP type table that translates property names into types and
2593: codes. Each entry used to point directly to a name, but to reduce the number of
2594: relocations in shared libraries, it now has an offset into a single string
2595: instead. */
2596:
2597: typedef struct {
2598: pcre_uint16 name_offset;
2599: pcre_uint16 type;
2600: pcre_uint16 value;
2601: } ucp_type_table;
2602:
2603:
2604: /* Internal shared data tables. These are tables that are used by more than one
2605: of the exported public functions. They have to be "external" in the C sense,
2606: but are not part of the PCRE public API. The data for these tables is in the
2607: pcre_tables.c module. */
2608:
1.1.1.2 ! misho 2609: #ifdef COMPILE_PCRE8
! 2610: extern const int PRIV(utf8_table1)[];
! 2611: extern const int PRIV(utf8_table1_size);
! 2612: extern const int PRIV(utf8_table2)[];
! 2613: extern const int PRIV(utf8_table3)[];
! 2614: extern const pcre_uint8 PRIV(utf8_table4)[];
! 2615: #endif /* COMPILE_PCRE8 */
! 2616:
! 2617: extern const char PRIV(utt_names)[];
! 2618: extern const ucp_type_table PRIV(utt)[];
! 2619: extern const int PRIV(utt_size);
1.1 misho 2620:
1.1.1.2 ! misho 2621: extern const pcre_uint8 PRIV(OP_lengths)[];
! 2622: extern const pcre_uint8 PRIV(default_tables)[];
1.1 misho 2623:
1.1.1.2 ! misho 2624: extern const pcre_uint32 PRIV(hspace_list)[];
! 2625: extern const pcre_uint32 PRIV(vspace_list)[];
1.1 misho 2626:
2627:
2628: /* Internal shared functions. These are functions that are used by more than
2629: one of the exported public functions. They have to be "external" in the C
2630: sense, but are not part of the PCRE public API. */
2631:
1.1.1.2 ! misho 2632: /* String comparison functions. */
! 2633: #if defined COMPILE_PCRE8
1.1 misho 2634:
1.1.1.2 ! misho 2635: #define STRCMP_UC_UC(str1, str2) \
! 2636: strcmp((char *)(str1), (char *)(str2))
! 2637: #define STRCMP_UC_C8(str1, str2) \
! 2638: strcmp((char *)(str1), (str2))
! 2639: #define STRNCMP_UC_UC(str1, str2, num) \
! 2640: strncmp((char *)(str1), (char *)(str2), (num))
! 2641: #define STRNCMP_UC_C8(str1, str2, num) \
! 2642: strncmp((char *)(str1), (str2), (num))
! 2643: #define STRLEN_UC(str) strlen((const char *)str)
! 2644:
! 2645: #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
! 2646:
! 2647: extern int PRIV(strcmp_uc_uc)(const pcre_uchar *,
! 2648: const pcre_uchar *);
! 2649: extern int PRIV(strcmp_uc_c8)(const pcre_uchar *,
! 2650: const char *);
! 2651: extern int PRIV(strncmp_uc_uc)(const pcre_uchar *,
! 2652: const pcre_uchar *, unsigned int num);
! 2653: extern int PRIV(strncmp_uc_c8)(const pcre_uchar *,
! 2654: const char *, unsigned int num);
! 2655: extern unsigned int PRIV(strlen_uc)(const pcre_uchar *str);
! 2656:
! 2657: #define STRCMP_UC_UC(str1, str2) \
! 2658: PRIV(strcmp_uc_uc)((str1), (str2))
! 2659: #define STRCMP_UC_C8(str1, str2) \
! 2660: PRIV(strcmp_uc_c8)((str1), (str2))
! 2661: #define STRNCMP_UC_UC(str1, str2, num) \
! 2662: PRIV(strncmp_uc_uc)((str1), (str2), (num))
! 2663: #define STRNCMP_UC_C8(str1, str2, num) \
! 2664: PRIV(strncmp_uc_c8)((str1), (str2), (num))
! 2665: #define STRLEN_UC(str) PRIV(strlen_uc)(str)
! 2666:
! 2667: #endif /* COMPILE_PCRE[8|16|32] */
! 2668:
! 2669: #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
! 2670:
! 2671: #define STRCMP_UC_UC_TEST(str1, str2) STRCMP_UC_UC(str1, str2)
! 2672: #define STRCMP_UC_C8_TEST(str1, str2) STRCMP_UC_C8(str1, str2)
! 2673:
! 2674: #elif defined COMPILE_PCRE32
! 2675:
! 2676: extern int PRIV(strcmp_uc_uc_utf)(const pcre_uchar *,
! 2677: const pcre_uchar *);
! 2678: extern int PRIV(strcmp_uc_c8_utf)(const pcre_uchar *,
! 2679: const char *);
! 2680:
! 2681: #define STRCMP_UC_UC_TEST(str1, str2) \
! 2682: (utf ? PRIV(strcmp_uc_uc_utf)((str1), (str2)) : PRIV(strcmp_uc_uc)((str1), (str2)))
! 2683: #define STRCMP_UC_C8_TEST(str1, str2) \
! 2684: (utf ? PRIV(strcmp_uc_c8_utf)((str1), (str2)) : PRIV(strcmp_uc_c8)((str1), (str2)))
! 2685:
! 2686: #endif /* COMPILE_PCRE[8|16|32] */
! 2687:
! 2688: extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
! 2689: extern BOOL PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
! 2690: int *, BOOL);
! 2691: extern unsigned int PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
! 2692: extern int PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
! 2693: extern BOOL PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
! 2694: int *, BOOL);
! 2695: extern BOOL PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
! 2696:
! 2697: #ifdef SUPPORT_JIT
! 2698: extern void PRIV(jit_compile)(const REAL_PCRE *,
! 2699: PUBL(extra) *, int);
! 2700: extern int PRIV(jit_exec)(const PUBL(extra) *,
! 2701: const pcre_uchar *, int, int, int, int *, int);
! 2702: extern void PRIV(jit_free)(void *);
! 2703: extern int PRIV(jit_get_size)(void *);
! 2704: extern const char* PRIV(jit_get_target)(void);
! 2705: #endif
1.1 misho 2706:
2707: /* Unicode character database (UCD) */
2708:
2709: typedef struct {
1.1.1.2 ! misho 2710: pcre_uint8 script; /* ucp_Arabic, etc. */
! 2711: pcre_uint8 chartype; /* ucp_Cc, etc. (general categories) */
! 2712: pcre_uint8 gbprop; /* ucp_gbControl, etc. (grapheme break property) */
! 2713: pcre_uint8 caseset; /* offset to multichar other cases or zero */
! 2714: pcre_int32 other_case; /* offset to other case, or zero if none */
1.1 misho 2715: } ucd_record;
2716:
1.1.1.2 ! misho 2717: extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
! 2718: extern const ucd_record PRIV(ucd_records)[];
! 2719: extern const pcre_uint8 PRIV(ucd_stage1)[];
! 2720: extern const pcre_uint16 PRIV(ucd_stage2)[];
! 2721: extern const pcre_uint32 PRIV(ucp_gentype)[];
! 2722: extern const pcre_uint32 PRIV(ucp_gbtable)[];
! 2723: #ifdef SUPPORT_JIT
! 2724: extern const int PRIV(ucp_typerange)[];
! 2725: #endif
1.1 misho 2726:
1.1.1.2 ! misho 2727: #ifdef SUPPORT_UCP
1.1 misho 2728: /* UCD access macros */
2729:
2730: #define UCD_BLOCK_SIZE 128
1.1.1.2 ! misho 2731: #define GET_UCD(ch) (PRIV(ucd_records) + \
! 2732: PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
! 2733: UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
! 2734:
! 2735: #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
! 2736: #define UCD_SCRIPT(ch) GET_UCD(ch)->script
! 2737: #define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
! 2738: #define UCD_GRAPHBREAK(ch) GET_UCD(ch)->gbprop
! 2739: #define UCD_CASESET(ch) GET_UCD(ch)->caseset
! 2740: #define UCD_OTHERCASE(ch) ((pcre_uint32)((int)ch + (int)(GET_UCD(ch)->other_case)))
! 2741:
! 2742: #endif /* SUPPORT_UCP */
1.1 misho 2743:
2744: #endif
2745:
2746: /* End of pcre_internal.h */
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