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-/*************************************************
-* Perl-Compatible Regular Expressions *
-*************************************************/
-
-
-/* This is a library of functions to support regular expressions whose syntax
-and semantics are as close as possible to those of the Perl 5 language. See
-the file doc/Tech.Notes for some information on the internals.
-
-Written by: Philip Hazel <ph10@cam.ac.uk>
-
- Copyright (c) 1997-2004 University of Cambridge
-
------------------------------------------------------------------------------
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- * Neither the name of the University of Cambridge nor the names of its
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
-*/
-
-/* This header contains definitions that are shared between the different
-modules, but which are not relevant to the outside. */
-
-/* Get the definitions provided by running "configure" */
-
-#include "config.h"
-
-/* Standard C headers plus the external interface definition. The only time
-setjmp and stdarg are used is when NO_RECURSE is set. */
-
-#include <ctype.h>
-#include <limits.h>
-#include <setjmp.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef PCRE_SPY
-#define PCRE_DEFINITION /* Win32 __declspec(export) trigger for .dll */
-#endif
-
-/* We need to have types that specify unsigned 16-bit and 32-bit integers. We
-cannot determine these outside the compilation (e.g. by running a program as
-part of "configure") because PCRE is often cross-compiled for use on other
-systems. Instead we make use of the maximum sizes that are available at
-preprocessor time in standard C environments. */
-
-#if USHRT_MAX == 65535
- typedef unsigned short pcre_uint16;
-#elif UINT_MAX == 65535
- typedef unsigned int pcre_uint16;
-#else
- #error Cannot determine a type for 16-bit unsigned integers
-#endif
-
-#if UINT_MAX == 4294967295
- typedef unsigned int pcre_uint32;
-#elif ULONG_MAX == 4294967295
- typedef unsigned long int pcre_uint32;
-#else
- #error Cannot determine a type for 32-bit unsigned integers
-#endif
-
-/* All character handling must be done as unsigned characters. Otherwise there
-are problems with top-bit-set characters and functions such as isspace().
-However, we leave the interface to the outside world as char *, because that
-should make things easier for callers. We define a short type for unsigned char
-to save lots of typing. I tried "uchar", but it causes problems on Digital
-Unix, where it is defined in sys/types, so use "uschar" instead. */
-
-typedef unsigned char uschar;
-
-/* Include the public PCRE header */
-
-#include "pcre.h"
-
-/* When compiling for use with the Virtual Pascal compiler, these functions
-need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
-option on the command line. */
-
-#ifdef VPCOMPAT
-#define strncmp(s1,s2,m) _strncmp(s1,s2,m)
-#define memcpy(d,s,n) _memcpy(d,s,n)
-#define memmove(d,s,n) _memmove(d,s,n)
-#define memset(s,c,n) _memset(s,c,n)
-#else /* VPCOMPAT */
-
-/* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
-define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
-is set. Otherwise, include an emulating function for those systems that have
-neither (there some non-Unix environments where this is the case). This assumes
-that all calls to memmove are moving strings upwards in store, which is the
-case in PCRE. */
-
-#if ! HAVE_MEMMOVE
-#undef memmove /* some systems may have a macro */
-#if HAVE_BCOPY
-#define memmove(a, b, c) bcopy(b, a, c)
-#else /* HAVE_BCOPY */
-void *
-pcre_memmove(unsigned char *dest, const unsigned char *src, size_t n)
-{
-int i;
-dest += n;
-src += n;
-for (i = 0; i < n; ++i) *(--dest) = *(--src);
-}
-#define memmove(a, b, c) pcre_memmove(a, b, c)
-#endif /* not HAVE_BCOPY */
-#endif /* not HAVE_MEMMOVE */
-#endif /* not VPCOMPAT */
-
-
-/* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
-in big-endian order) by default. These are used, for example, to link from the
-start of a subpattern to its alternatives and its end. The use of 2 bytes per
-offset limits the size of the compiled regex to around 64K, which is big enough
-for almost everybody. However, I received a request for an even bigger limit.
-For this reason, and also to make the code easier to maintain, the storing and
-loading of offsets from the byte string is now handled by the macros that are
-defined here.
-
-The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
-the config.h file, but can be overridden by using -D on the command line. This
-is automated on Unix systems via the "configure" command. */
-
-#if LINK_SIZE == 2
-
-#define PUT(a,n,d) \
- (a[n] = (d) >> 8), \
- (a[(n)+1] = (d) & 255)
-
-#define GET(a,n) \
- (((a)[n] << 8) | (a)[(n)+1])
-
-#define MAX_PATTERN_SIZE (1 << 16)
-
-
-#elif LINK_SIZE == 3
-
-#define PUT(a,n,d) \
- (a[n] = (d) >> 16), \
- (a[(n)+1] = (d) >> 8), \
- (a[(n)+2] = (d) & 255)
-
-#define GET(a,n) \
- (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
-
-#define MAX_PATTERN_SIZE (1 << 24)
-
-
-#elif LINK_SIZE == 4
-
-#define PUT(a,n,d) \
- (a[n] = (d) >> 24), \
- (a[(n)+1] = (d) >> 16), \
- (a[(n)+2] = (d) >> 8), \
- (a[(n)+3] = (d) & 255)
-
-#define GET(a,n) \
- (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
-
-#define MAX_PATTERN_SIZE (1 << 30) /* Keep it positive */
-
-
-#else
-#error LINK_SIZE must be either 2, 3, or 4
-#endif
-
-
-/* Convenience macro defined in terms of the others */
-
-#define PUTINC(a,n,d) PUT(a,n,d), a += LINK_SIZE
-
-
-/* PCRE uses some other 2-byte quantities that do not change when the size of
-offsets changes. There are used for repeat counts and for other things such as
-capturing parenthesis numbers in back references. */
-
-#define PUT2(a,n,d) \
- a[n] = (d) >> 8; \
- a[(n)+1] = (d) & 255
-
-#define GET2(a,n) \
- (((a)[n] << 8) | (a)[(n)+1])
-
-#define PUT2INC(a,n,d) PUT2(a,n,d), a += 2
-
-
-/* In case there is no definition of offsetof() provided - though any proper
-Standard C system should have one. */
-
-#ifndef offsetof
-#define offsetof(p_type,field) ((size_t)&(((p_type *)0)->field))
-#endif
-
-
-/* These are the public options that can change during matching. */
-
-#define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)
-
-/* Private options flags start at the most significant end of the four bytes,
-but skip the top bit so we can use ints for convenience without getting tangled
-with negative values. The public options defined in pcre.h start at the least
-significant end. Make sure they don't overlap, though now that we have expanded
-to four bytes, there is plenty of space. */
-
-#define PCRE_FIRSTSET 0x40000000 /* first_byte is set */
-#define PCRE_REQCHSET 0x20000000 /* req_byte is set */
-#define PCRE_STARTLINE 0x10000000 /* start after \n for multiline */
-#define PCRE_ICHANGED 0x08000000 /* i option changes within regex */
-#define PCRE_NOPARTIAL 0x04000000 /* can't use partial with this regex */
-
-/* Options for the "extra" block produced by pcre_study(). */
-
-#define PCRE_STUDY_MAPPED 0x01 /* a map of starting chars exists */
-
-/* Masks for identifying the public options which are permitted at compile
-time, run time or study time, respectively. */
-
-#define PUBLIC_OPTIONS \
- (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
- PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
- PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT)
-
-#define PUBLIC_EXEC_OPTIONS \
- (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \
- PCRE_PARTIAL)
-
-#define PUBLIC_STUDY_OPTIONS 0 /* None defined */
-
-/* Magic number to provide a small check against being handed junk. */
-
-#define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
-
-/* Negative values for the firstchar and reqchar variables */
-
-#define REQ_UNSET (-2)
-#define REQ_NONE (-1)
-
-/* Flags added to firstbyte or reqbyte; a "non-literal" item is either a
-variable-length repeat, or a anything other than literal characters. */
-
-#define REQ_CASELESS 0x0100 /* indicates caselessness */
-#define REQ_VARY 0x0200 /* reqbyte followed non-literal item */
-
-/* Miscellaneous definitions */
-
-typedef int BOOL;
-
-#define FALSE 0
-#define TRUE 1
-
-/* Escape items that are just an encoding of a particular data value. Note that
-ESC_n is defined as yet another macro, which is set in config.h to either \n
-(the default) or \r (which some people want). */
-
-#ifndef ESC_e
-#define ESC_e 27
-#endif
-
-#ifndef ESC_f
-#define ESC_f '\f'
-#endif
-
-#ifndef ESC_n
-#define ESC_n NEWLINE
-#endif
-
-#ifndef ESC_r
-#define ESC_r '\r'
-#endif
-
-/* We can't officially use ESC_t because it is a POSIX reserved identifier
-(presumably because of all the others like size_t). */
-
-#ifndef ESC_tee
-#define ESC_tee '\t'
-#endif
-
-/* These are escaped items that aren't just an encoding of a particular data
-value such as \n. They must have non-zero values, as check_escape() returns
-their negation. Also, they must appear in the same order as in the opcode
-definitions below, up to ESC_z. There's a dummy for OP_ANY because it
-corresponds to "." rather than an escape sequence. The final one must be
-ESC_REF as subsequent values are used for \1, \2, \3, etc. There is are two
-tests in the code for an escape greater than ESC_b and less than ESC_Z to
-detect the types that may be repeated. These are the types that consume
-characters. If any new escapes are put in between that don't consume a
-character, that code will have to change. */
-
-enum { ESC_A = 1, ESC_G, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s, ESC_W,
- ESC_w, ESC_dum1, ESC_C, ESC_P, ESC_p, ESC_X, ESC_Z, ESC_z, ESC_E,
- ESC_Q, ESC_REF };
-
-/* Flag bits and data types for the extended class (OP_XCLASS) for classes that
-contain UTF-8 characters with values greater than 255. */
-
-#define XCL_NOT 0x01 /* Flag: this is a negative class */
-#define XCL_MAP 0x02 /* Flag: a 32-byte map is present */
-
-#define XCL_END 0 /* Marks end of individual items */
-#define XCL_SINGLE 1 /* Single item (one multibyte char) follows */
-#define XCL_RANGE 2 /* A range (two multibyte chars) follows */
-#define XCL_PROP 3 /* Unicode property (one property code) follows */
-#define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
-
-
-/* Opcode table: OP_BRA must be last, as all values >= it are used for brackets
-that extract substrings. Starting from 1 (i.e. after OP_END), the values up to
-OP_EOD must correspond in order to the list of escapes immediately above.
-Note that whenever this list is updated, the two macro definitions that follow
-must also be updated to match. */
-
-enum {
- OP_END, /* 0 End of pattern */
-
- /* Values corresponding to backslashed metacharacters */
-
- OP_SOD, /* 1 Start of data: \A */
- OP_SOM, /* 2 Start of match (subject + offset): \G */
- OP_NOT_WORD_BOUNDARY, /* 3 \B */
- OP_WORD_BOUNDARY, /* 4 \b */
- OP_NOT_DIGIT, /* 5 \D */
- OP_DIGIT, /* 6 \d */
- OP_NOT_WHITESPACE, /* 7 \S */
- OP_WHITESPACE, /* 8 \s */
- OP_NOT_WORDCHAR, /* 9 \W */
- OP_WORDCHAR, /* 10 \w */
- OP_ANY, /* 11 Match any character */
- OP_ANYBYTE, /* 12 Match any byte (\C); different to OP_ANY for UTF-8 */
- OP_NOTPROP, /* 13 \P (not Unicode property) */
- OP_PROP, /* 14 \p (Unicode property) */
- OP_EXTUNI, /* 15 \X (extended Unicode sequence */
- OP_EODN, /* 16 End of data or \n at end of data: \Z. */
- OP_EOD, /* 17 End of data: \z */
-
- OP_OPT, /* 18 Set runtime options */
- OP_CIRC, /* 19 Start of line - varies with multiline switch */
- OP_DOLL, /* 20 End of line - varies with multiline switch */
- OP_CHAR, /* 21 Match one character, casefully */
- OP_CHARNC, /* 22 Match one character, caselessly */
- OP_NOT, /* 23 Match anything but the following char */
-
- OP_STAR, /* 24 The maximizing and minimizing versions of */
- OP_MINSTAR, /* 25 all these opcodes must come in pairs, with */
- OP_PLUS, /* 26 the minimizing one second. */
- OP_MINPLUS, /* 27 This first set applies to single characters */
- OP_QUERY, /* 28 */
- OP_MINQUERY, /* 29 */
- OP_UPTO, /* 30 From 0 to n matches */
- OP_MINUPTO, /* 31 */
- OP_EXACT, /* 32 Exactly n matches */
-
- OP_NOTSTAR, /* 33 The maximizing and minimizing versions of */
- OP_NOTMINSTAR, /* 34 all these opcodes must come in pairs, with */
- OP_NOTPLUS, /* 35 the minimizing one second. */
- OP_NOTMINPLUS, /* 36 This set applies to "not" single characters */
- OP_NOTQUERY, /* 37 */
- OP_NOTMINQUERY, /* 38 */
- OP_NOTUPTO, /* 39 From 0 to n matches */
- OP_NOTMINUPTO, /* 40 */
- OP_NOTEXACT, /* 41 Exactly n matches */
-
- OP_TYPESTAR, /* 42 The maximizing and minimizing versions of */
- OP_TYPEMINSTAR, /* 43 all these opcodes must come in pairs, with */
- OP_TYPEPLUS, /* 44 the minimizing one second. These codes must */
- OP_TYPEMINPLUS, /* 45 be in exactly the same order as those above. */
- OP_TYPEQUERY, /* 46 This set applies to character types such as \d */
- OP_TYPEMINQUERY, /* 47 */
- OP_TYPEUPTO, /* 48 From 0 to n matches */
- OP_TYPEMINUPTO, /* 49 */
- OP_TYPEEXACT, /* 50 Exactly n matches */
-
- OP_CRSTAR, /* 51 The maximizing and minimizing versions of */
- OP_CRMINSTAR, /* 52 all these opcodes must come in pairs, with */
- OP_CRPLUS, /* 53 the minimizing one second. These codes must */
- OP_CRMINPLUS, /* 54 be in exactly the same order as those above. */
- OP_CRQUERY, /* 55 These are for character classes and back refs */
- OP_CRMINQUERY, /* 56 */
- OP_CRRANGE, /* 57 These are different to the three sets above. */
- OP_CRMINRANGE, /* 58 */
-
- OP_CLASS, /* 59 Match a character class, chars < 256 only */
- OP_NCLASS, /* 60 Same, but the bitmap was created from a negative
- class - the difference is relevant only when a UTF-8
- character > 255 is encountered. */
-
- OP_XCLASS, /* 61 Extended class for handling UTF-8 chars within the
- class. This does both positive and negative. */
-
- OP_REF, /* 62 Match a back reference */
- OP_RECURSE, /* 63 Match a numbered subpattern (possibly recursive) */
- OP_CALLOUT, /* 64 Call out to external function if provided */
-
- OP_ALT, /* 65 Start of alternation */
- OP_KET, /* 66 End of group that doesn't have an unbounded repeat */
- OP_KETRMAX, /* 67 These two must remain together and in this */
- OP_KETRMIN, /* 68 order. They are for groups the repeat for ever. */
-
- /* The assertions must come before ONCE and COND */
-
- OP_ASSERT, /* 69 Positive lookahead */
- OP_ASSERT_NOT, /* 70 Negative lookahead */
- OP_ASSERTBACK, /* 71 Positive lookbehind */
- OP_ASSERTBACK_NOT, /* 72 Negative lookbehind */
- OP_REVERSE, /* 73 Move pointer back - used in lookbehind assertions */
-
- /* ONCE and COND must come after the assertions, with ONCE first, as there's
- a test for >= ONCE for a subpattern that isn't an assertion. */
-
- OP_ONCE, /* 74 Once matched, don't back up into the subpattern */
- OP_COND, /* 75 Conditional group */
- OP_CREF, /* 76 Used to hold an extraction string number (cond ref) */
-
- OP_BRAZERO, /* 77 These two must remain together and in this */
- OP_BRAMINZERO, /* 78 order. */
-
- OP_BRANUMBER, /* 79 Used for extracting brackets whose number is greater
- than can fit into an opcode. */
-
- OP_BRA /* 80 This and greater values are used for brackets that
- extract substrings up to EXTRACT_BASIC_MAX. After
- that, use is made of OP_BRANUMBER. */
-};
-
-/* WARNING WARNING WARNING: There is an implicit assumption in pcre.c and
-study.c that all opcodes are less than 128 in value. This makes handling UTF-8
-character sequences easier. */
-
-/* The highest extraction number before we have to start using additional
-bytes. (Originally PCRE didn't have support for extraction counts highter than
-this number.) The value is limited by the number of opcodes left after OP_BRA,
-i.e. 255 - OP_BRA. We actually set it a bit lower to leave room for additional
-opcodes. */
-
-#define EXTRACT_BASIC_MAX 100
-
-
-/* This macro defines textual names for all the opcodes. There are used only
-for debugging, in pcre.c when DEBUG is defined, and also in pcretest.c. The
-macro is referenced only in printint.c. */
-
-#define OP_NAME_LIST \
- "End", "\\A", "\\G", "\\B", "\\b", "\\D", "\\d", \
- "\\S", "\\s", "\\W", "\\w", "Any", "Anybyte", \
- "notprop", "prop", "extuni", \
- "\\Z", "\\z", \
- "Opt", "^", "$", "char", "charnc", "not", \
- "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
- "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
- "*", "*?", "+", "+?", "?", "??", "{", "{", "{", \
- "*", "*?", "+", "+?", "?", "??", "{", "{", \
- "class", "nclass", "xclass", "Ref", "Recurse", "Callout", \
- "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not", \
- "AssertB", "AssertB not", "Reverse", "Once", "Cond", "Cond ref",\
- "Brazero", "Braminzero", "Branumber", "Bra"
-
-
-/* This macro defines the length of fixed length operations in the compiled
-regex. The lengths are used when searching for specific things, and also in the
-debugging printing of a compiled regex. We use a macro so that it can be
-incorporated both into pcre.c and pcretest.c without being publicly exposed.
-
-As things have been extended, some of these are no longer fixed lenths, but are
-minima instead. For example, the length of a single-character repeat may vary
-in UTF-8 mode. The code that uses this table must know about such things. */
-
-#define OP_LENGTHS \
- 1, /* End */ \
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* \A, \G, \B, \B, \D, \d, \S, \s, \W, \w */ \
- 1, 1, /* Any, Anybyte */ \
- 2, 2, 1, /* NOTPROP, PROP, EXTUNI */ \
- 1, 1, 2, 1, 1, /* \Z, \z, Opt, ^, $ */ \
- 2, /* Char - the minimum length */ \
- 2, /* Charnc - the minimum length */ \
- 2, /* not */ \
- /* Positive single-char repeats ** These are */ \
- 2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
- 4, 4, 4, /* upto, minupto, exact ** UTF-8 mode */ \
- /* Negative single-char repeats - only for chars < 256 */ \
- 2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
- 4, 4, 4, /* NOT upto, minupto, exact */ \
- /* Positive type repeats */ \
- 2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
- 4, 4, 4, /* Type upto, minupto, exact */ \
- /* Character class & ref repeats */ \
- 1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
- 5, 5, /* CRRANGE, CRMINRANGE */ \
- 33, /* CLASS */ \
- 33, /* NCLASS */ \
- 0, /* XCLASS - variable length */ \
- 3, /* REF */ \
- 1+LINK_SIZE, /* RECURSE */ \
- 2+2*LINK_SIZE, /* CALLOUT */ \
- 1+LINK_SIZE, /* Alt */ \
- 1+LINK_SIZE, /* Ket */ \
- 1+LINK_SIZE, /* KetRmax */ \
- 1+LINK_SIZE, /* KetRmin */ \
- 1+LINK_SIZE, /* Assert */ \
- 1+LINK_SIZE, /* Assert not */ \
- 1+LINK_SIZE, /* Assert behind */ \
- 1+LINK_SIZE, /* Assert behind not */ \
- 1+LINK_SIZE, /* Reverse */ \
- 1+LINK_SIZE, /* Once */ \
- 1+LINK_SIZE, /* COND */ \
- 3, /* CREF */ \
- 1, 1, /* BRAZERO, BRAMINZERO */ \
- 3, /* BRANUMBER */ \
- 1+LINK_SIZE /* BRA */ \
-
-
-/* A magic value for OP_CREF to indicate the "in recursion" condition. */
-
-#define CREF_RECURSE 0xffff
-
-/* The texts of compile-time error messages are defined as macros here so that
-they can be accessed by the POSIX wrapper and converted into error codes. Yes,
-I could have used error codes in the first place, but didn't feel like changing
-just to accommodate the POSIX wrapper. */
-
-#define ERR1 "\\ at end of pattern"
-#define ERR2 "\\c at end of pattern"
-#define ERR3 "unrecognized character follows \\"
-#define ERR4 "numbers out of order in {} quantifier"
-#define ERR5 "number too big in {} quantifier"
-#define ERR6 "missing terminating ] for character class"
-#define ERR7 "invalid escape sequence in character class"
-#define ERR8 "range out of order in character class"
-#define ERR9 "nothing to repeat"
-#define ERR10 "operand of unlimited repeat could match the empty string"
-#define ERR11 "internal error: unexpected repeat"
-#define ERR12 "unrecognized character after (?"
-#define ERR13 "POSIX named classes are supported only within a class"
-#define ERR14 "missing )"
-#define ERR15 "reference to non-existent subpattern"
-#define ERR16 "erroffset passed as NULL"
-#define ERR17 "unknown option bit(s) set"
-#define ERR18 "missing ) after comment"
-#define ERR19 "parentheses nested too deeply"
-#define ERR20 "regular expression too large"
-#define ERR21 "failed to get memory"
-#define ERR22 "unmatched parentheses"
-#define ERR23 "internal error: code overflow"
-#define ERR24 "unrecognized character after (?<"
-#define ERR25 "lookbehind assertion is not fixed length"
-#define ERR26 "malformed number after (?("
-#define ERR27 "conditional group contains more than two branches"
-#define ERR28 "assertion expected after (?("
-#define ERR29 "(?R or (?digits must be followed by )"
-#define ERR30 "unknown POSIX class name"
-#define ERR31 "POSIX collating elements are not supported"
-#define ERR32 "this version of PCRE is not compiled with PCRE_UTF8 support"
-#define ERR33 "spare error"
-#define ERR34 "character value in \\x{...} sequence is too large"
-#define ERR35 "invalid condition (?(0)"
-#define ERR36 "\\C not allowed in lookbehind assertion"
-#define ERR37 "PCRE does not support \\L, \\l, \\N, \\U, or \\u"
-#define ERR38 "number after (?C is > 255"
-#define ERR39 "closing ) for (?C expected"
-#define ERR40 "recursive call could loop indefinitely"
-#define ERR41 "unrecognized character after (?P"
-#define ERR42 "syntax error after (?P"
-#define ERR43 "two named groups have the same name"
-#define ERR44 "invalid UTF-8 string"
-#define ERR45 "support for \\P, \\p, and \\X has not been compiled"
-#define ERR46 "malformed \\P or \\p sequence"
-#define ERR47 "unknown property name after \\P or \\p"
-
-/* The real format of the start of the pcre block; the index of names and the
-code vector run on as long as necessary after the end. We store an explicit
-offset to the name table so that if a regex is compiled on one host, saved, and
-then run on another where the size of pointers is different, all might still
-be well. For the case of compiled-on-4 and run-on-8, we include an extra
-pointer that is always NULL. For future-proofing, we also include a few dummy
-fields - even though you can never get this planning right!
-
-NOTE NOTE NOTE:
-Because people can now save and re-use compiled patterns, any additions to this
-structure should be made at the end, and something earlier (e.g. a new
-flag in the options or one of the dummy fields) should indicate that the new
-fields are present. Currently PCRE always sets the dummy fields to zero.
-NOTE NOTE NOTE:
-*/
-
-typedef struct real_pcre {
- pcre_uint32 magic_number;
- pcre_uint32 size; /* Total that was malloced */
- pcre_uint32 options;
- pcre_uint32 dummy1; /* For future use, maybe */
-
- pcre_uint16 top_bracket;
- pcre_uint16 top_backref;
- pcre_uint16 first_byte;
- pcre_uint16 req_byte;
- pcre_uint16 name_table_offset; /* Offset to name table that follows */
- pcre_uint16 name_entry_size; /* Size of any name items */
- pcre_uint16 name_count; /* Number of name items */
- pcre_uint16 dummy2; /* For future use, maybe */
-
- const unsigned char *tables; /* Pointer to tables or NULL for std */
- const unsigned char *nullpad; /* NULL padding */
-} real_pcre;
-
-/* The format of the block used to store data from pcre_study(). The same
-remark (see NOTE above) about extending this structure applies. */
-
-typedef struct pcre_study_data {
- pcre_uint32 size; /* Total that was malloced */
- pcre_uint32 options;
- uschar start_bits[32];
-} pcre_study_data;
-
-/* Structure for passing "static" information around between the functions
-doing the compiling, so that they are thread-safe. */
-
-typedef struct compile_data {
- const uschar *lcc; /* Points to lower casing table */
- const uschar *fcc; /* Points to case-flipping table */
- const uschar *cbits; /* Points to character type table */
- const uschar *ctypes; /* Points to table of type maps */
- const uschar *start_code; /* The start of the compiled code */
- const uschar *start_pattern; /* The start of the pattern */
- uschar *name_table; /* The name/number table */
- int names_found; /* Number of entries so far */
- int name_entry_size; /* Size of each entry */
- int top_backref; /* Maximum back reference */
- unsigned int backref_map; /* Bitmap of low back refs */
- int req_varyopt; /* "After variable item" flag for reqbyte */
- BOOL nopartial; /* Set TRUE if partial won't work */
-} compile_data;
-
-/* Structure for maintaining a chain of pointers to the currently incomplete
-branches, for testing for left recursion. */
-
-typedef struct branch_chain {
- struct branch_chain *outer;
- uschar *current;
-} branch_chain;
-
-/* Structure for items in a linked list that represents an explicit recursive
-call within the pattern. */
-
-typedef struct recursion_info {
- struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
- int group_num; /* Number of group that was called */
- const uschar *after_call; /* "Return value": points after the call in the expr */
- const uschar *save_start; /* Old value of md->start_match */
- int *offset_save; /* Pointer to start of saved offsets */
- int saved_max; /* Number of saved offsets */
-} recursion_info;
-
-/* When compiling in a mode that doesn't use recursive calls to match(),
-a structure is used to remember local variables on the heap. It is defined in
-pcre.c, close to the match() function, so that it is easy to keep it in step
-with any changes of local variable. However, the pointer to the current frame
-must be saved in some "static" place over a longjmp(). We declare the
-structure here so that we can put a pointer in the match_data structure.
-NOTE: This isn't used for a "normal" compilation of pcre. */
-
-struct heapframe;
-
-/* Structure for passing "static" information around between the functions
-doing the matching, so that they are thread-safe. */
-
-typedef struct match_data {
- unsigned long int match_call_count; /* As it says */
- unsigned long int match_limit;/* As it says */
- int *offset_vector; /* Offset vector */
- int offset_end; /* One past the end */
- int offset_max; /* The maximum usable for return data */
- const uschar *lcc; /* Points to lower casing table */
- const uschar *ctypes; /* Points to table of type maps */
- BOOL offset_overflow; /* Set if too many extractions */
- BOOL notbol; /* NOTBOL flag */
- BOOL noteol; /* NOTEOL flag */
- BOOL utf8; /* UTF8 flag */
- BOOL endonly; /* Dollar not before final \n */
- BOOL notempty; /* Empty string match not wanted */
- BOOL partial; /* PARTIAL flag */
- BOOL hitend; /* Hit the end of the subject at some point */
- const uschar *start_code; /* For use when recursing */
- const uschar *start_subject; /* Start of the subject string */
- const uschar *end_subject; /* End of the subject string */
- const uschar *start_match; /* Start of this match attempt */
- const uschar *end_match_ptr; /* Subject position at end match */
- int end_offset_top; /* Highwater mark at end of match */
- int capture_last; /* Most recent capture number */
- int start_offset; /* The start offset value */
- recursion_info *recursive; /* Linked list of recursion data */
- void *callout_data; /* To pass back to callouts */
- struct heapframe *thisframe; /* Used only when compiling for no recursion */
-} match_data;
-
-/* Bit definitions for entries in the pcre_ctypes table. */
-
-#define ctype_space 0x01
-#define ctype_letter 0x02
-#define ctype_digit 0x04
-#define ctype_xdigit 0x08
-#define ctype_word 0x10 /* alphameric or '_' */
-#define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
-
-/* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
-of bits for a class map. Some classes are built by combining these tables. */
-
-#define cbit_space 0 /* [:space:] or \s */
-#define cbit_xdigit 32 /* [:xdigit:] */
-#define cbit_digit 64 /* [:digit:] or \d */
-#define cbit_upper 96 /* [:upper:] */
-#define cbit_lower 128 /* [:lower:] */
-#define cbit_word 160 /* [:word:] or \w */
-#define cbit_graph 192 /* [:graph:] */
-#define cbit_print 224 /* [:print:] */
-#define cbit_punct 256 /* [:punct:] */
-#define cbit_cntrl 288 /* [:cntrl:] */
-#define cbit_length 320 /* Length of the cbits table */
-
-/* Offsets of the various tables from the base tables pointer, and
-total length. */
-
-#define lcc_offset 0
-#define fcc_offset 256
-#define cbits_offset 512
-#define ctypes_offset (cbits_offset + cbit_length)
-#define tables_length (ctypes_offset + 256)
-
-/* End of internal.h */