embedaddon/pcre/pcre_internal.h - view

File: [ELWIX - Embedded LightWeight unIX -] / embedaddon / pcre / pcre_internal.h
Revision 1.1.1.2 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Tue Feb 21 23:50:25 2012 UTC (12 years, 4 months ago) by misho
Branches: pcre, MAIN
CVS tags: v8_30, HEAD

pcre

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