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Upgrading libpcre from version 6.7 to 7.2. The old distributed libpcre was ~900k, this one is 1.3M. But, the old 6.7 vanilla was 4.1M, while 7.2 is 4.9M in size. I've tested it on Linux and Windows, with no problems

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This commit is contained in:
kris
2007-08-16 16:57:22 +00:00
parent e765af4103
commit 4500b7f173
54 changed files with 18266 additions and 6337 deletions
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551
libpcre/pcre_internal.h
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@@ -7,7 +7,7 @@
and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
Copyright (c) 1997-2006 University of Cambridge
Copyright (c) 1997-2007 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@@ -42,18 +42,9 @@ POSSIBILITY OF SUCH DAMAGE.
modules, but which are not relevant to the exported API. This includes some
functions whose names all begin with "_pcre_". */
/* Get the definitions provided by running "configure" */
#ifndef PCRE_INTERNAL_H
#define PCRE_INTERNAL_H
#ifndef WIN32
#include "config.h"
#else
#include "pcre_winconfig.h"
#endif
/* Define DEBUG to get debugging output on stdout. */
#if 0
@@ -63,15 +54,25 @@ functions whose names all begin with "_pcre_". */
/* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
inline, and there are *still* stupid compilers about that don't like indented
pre-processor statements, or at least there were when I first wrote this. After
all, it had only been about 10 years then... */
all, it had only been about 10 years then...
It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
be absolutely sure we get our version. */
#undef DPRINTF
#ifdef DEBUG
#define DPRINTF(p) printf p
#else
#define DPRINTF(p) /* Nothing */
#endif
/* Get the definitions provided by running "configure" */
#ifdef DEBUG
#define DPRINTF(p) printf p
#ifdef WIN32
#include "pcre_winconfig.h"
#else
#define DPRINTF(p) /*nothing*/
#include "config.h"
#endif
/* Standard C headers plus the external interface definition. The only time
@@ -86,8 +87,62 @@ setjmp and stdarg are used is when NO_RECURSE is set. */
#include <stdlib.h>
#include <string.h>
#ifndef PCRE_SPY
#define PCRE_DEFINITION /* Win32 __declspec(export) trigger for .dll */
/* When compiling a DLL for Windows, the exported symbols have to be declared
using some MS magic. I found some useful information on this web page:
http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
information there, using __declspec(dllexport) without "extern" we have a
definition; with "extern" we have a declaration. The settings here override the
setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
which is all that is needed for applications (they just import the symbols). We
use:
PCRE_EXP_DECL for declarations
PCRE_EXP_DEFN for definitions of exported functions
PCRE_EXP_DATA_DEFN for definitions of exported variables
The reason for the two DEFN macros is that in non-Windows environments, one
does not want to have "extern" before variable definitions because it leads to
compiler warnings. So we distinguish between functions and variables. In
Windows, the two should always be the same.
The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
which is an application, but needs to import this file in order to "peek" at
internals, can #include pcre.h first to get an application's-eye view.
In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
special-purpose environments) might want to stick other stuff in front of
exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
PCRE_EXP_DATA_DEFN only if they are not already set. */
#ifndef PCRE_EXP_DECL
# ifdef _WIN32
/* COMMENTED OUT AS IT'S COMPILED STATICALLY
# ifdef DLL_EXPORT
# define PCRE_EXP_DECL extern __declspec(dllexport)
# define PCRE_EXP_DEFN __declspec(dllexport)
# define PCRE_EXP_DATA_DEFN __declspec(dllexport)
# else
*/
# define PCRE_EXP_DECL extern
# define PCRE_EXP_DEFN
# define PCRE_EXP_DATA_DEFN
/*
# endif
*/
#
# else
# ifdef __cplusplus
# define PCRE_EXP_DECL extern "C"
# else
# define PCRE_EXP_DECL extern
# endif
# ifndef PCRE_EXP_DEFN
# define PCRE_EXP_DEFN PCRE_EXP_DECL
# endif
# ifndef PCRE_EXP_DATA_DEFN
# define PCRE_EXP_DATA_DEFN
# endif
# endif
#endif
/* We need to have types that specify unsigned 16-bit and 32-bit integers. We
@@ -121,22 +176,57 @@ Unix, where it is defined in sys/types, so use "uschar" instead. */
typedef unsigned char uschar;
/* PCRE is able to support 3 different kinds of newline (CR, LF, CRLF). The
following macro is used to package up testing for newlines. NLBLOCK is defined
in the various modules to indicate in which datablock the parameters exist. */
/* This is an unsigned int value that no character can ever have. UTF-8
characters only go up to 0x7fffffff (though Unicode doesn't go beyond
0x0010ffff). */
#define NOTACHAR 0xffffffff
/* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
"any" and "anycrlf" at present). The following macros are used to package up
testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
modules to indicate in which datablock the parameters exist, and what the
start/end of string field names are. */
#define NLTYPE_FIXED 0 /* Newline is a fixed length string */
#define NLTYPE_ANY 1 /* Newline is any Unicode line ending */
#define NLTYPE_ANYCRLF 2 /* Newline is CR, LF, or CRLF */
/* This macro checks for a newline at the given position */
#define IS_NEWLINE(p) \
((p)[0] == NLBLOCK->nl[0] && \
(NLBLOCK->nllen == 1 || (p)[1] == NLBLOCK->nl[1]))
((NLBLOCK->nltype != NLTYPE_FIXED)? \
((p) < NLBLOCK->PSEND && \
_pcre_is_newline((p), NLBLOCK->nltype, NLBLOCK->PSEND, &(NLBLOCK->nllen),\
utf8)) \
: \
((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
(p)[0] == NLBLOCK->nl[0] && \
(NLBLOCK->nllen == 1 || (p)[1] == NLBLOCK->nl[1]) \
) \
)
/* When PCRE is compiled as a C++ library, the subject pointer can be
replaced with a custom type. This makes it possible, for example, to
allow pcre_exec() to process subject strings that are discontinuous by
using a smart pointer class. It must always be possible to inspect all
of the subject string in pcre_exec() because of the way it
backtracks. Two macros are required in the normal case, for
sign-unspecified and unsigned char pointers. The former is used for
the external interface and appears in pcre.h, which is why its name
/* This macro checks for a newline immediately preceding the given position */
#define WAS_NEWLINE(p) \
((NLBLOCK->nltype != NLTYPE_FIXED)? \
((p) > NLBLOCK->PSSTART && \
_pcre_was_newline((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
&(NLBLOCK->nllen), utf8)) \
: \
((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
(p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
(NLBLOCK->nllen == 1 || (p)[-NLBLOCK->nllen+1] == NLBLOCK->nl[1]) \
) \
)
/* When PCRE is compiled as a C++ library, the subject pointer can be replaced
with a custom type. This makes it possible, for example, to allow pcre_exec()
to process subject strings that are discontinuous by using a smart pointer
class. It must always be possible to inspect all of the subject string in
pcre_exec() because of the way it backtracks. Two macros are required in the
normal case, for sign-unspecified and unsigned char pointers. The former is
used for the external interface and appears in pcre.h, which is why its name
must begin with PCRE_. */
#ifdef CUSTOM_SUBJECT_PTR
@@ -147,24 +237,22 @@ must begin with PCRE_. */
#define USPTR const unsigned char *
#endif
/* Include the public PCRE header and the definitions of UCP character
property values. */
/* Include the public PCRE header and the definitions of UCP character property
values. */
#include "pcre.h"
#include "ucp.h"
/* Include the (copy of) the public ucp header, changing the external name into a private one. This does no harm, even if we aren't compiling UCP support. */
#define ucp_findchar _pcre_ucp_findchar
#include "ucp.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 strlen(s) _strlen(s)
#define strncmp(s1,s2,m) _strncmp(s1,s2,m)
#define memcmp(s,c,n) _memcmp(s,c,n)
#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)
@@ -173,23 +261,31 @@ option on the command line. */
/* 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. */
neither (there some non-Unix environments where this is the case). */
#if ! HAVE_MEMMOVE
#ifndef HAVE_MEMMOVE
#undef memmove /* some systems may have a macro */
#if HAVE_BCOPY
#ifdef HAVE_BCOPY
#define memmove(a, b, c) bcopy(b, a, c)
#else /* HAVE_BCOPY */
static void *
pcre_memmove(unsigned char *dest, const unsigned char *src, size_t n)
pcre_memmove(void *d, const void *s, size_t n)
{
size_t i;
dest += n;
src += n;
for (i = 0; i < n; ++i) *(--dest) = *(--src);
return dest;
unsigned char *dest = (unsigned char *)d;
const unsigned char *src = (const unsigned char *)s;
if (dest > src)
{
dest += n;
src += n;
for (i = 0; i < n; ++i) *(--dest) = *(--src);
return (void *)dest;
}
else
{
for (i = 0; i < n; ++i) *dest++ = *src++;
return (void *)(dest - n);
}
}
#define memmove(a, b, c) pcre_memmove(a, b, c)
#endif /* not HAVE_BCOPY */
@@ -292,7 +388,7 @@ we know we are in UTF-8 mode. */
#define GETCHAR(c, eptr) \
c = *eptr; \
if ((c & 0xc0) == 0xc0) \
if (c >= 0xc0) \
{ \
int gcii; \
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
@@ -310,7 +406,7 @@ pointer. */
#define GETCHARTEST(c, eptr) \
c = *eptr; \
if (utf8 && (c & 0xc0) == 0xc0) \
if (utf8 && c >= 0xc0) \
{ \
int gcii; \
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
@@ -328,7 +424,7 @@ know we are in UTF-8 mode. */
#define GETCHARINC(c, eptr) \
c = *eptr++; \
if ((c & 0xc0) == 0xc0) \
if (c >= 0xc0) \
{ \
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
int gcss = 6*gcaa; \
@@ -344,7 +440,7 @@ know we are in UTF-8 mode. */
#define GETCHARINCTEST(c, eptr) \
c = *eptr++; \
if (utf8 && (c & 0xc0) == 0xc0) \
if (utf8 && c >= 0xc0) \
{ \
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
int gcss = 6*gcaa; \
@@ -361,7 +457,7 @@ if there are extra bytes. This is called when we know we are in UTF-8 mode. */
#define GETCHARLEN(c, eptr, len) \
c = *eptr; \
if ((c & 0xc0) == 0xc0) \
if (c >= 0xc0) \
{ \
int gcii; \
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
@@ -414,20 +510,22 @@ bits. */
/* Masks for identifying the public options that are permitted at compile
time, run time, or study time, respectively. */
#define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
PCRE_NEWLINE_ANYCRLF)
#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|PCRE_FIRSTLINE| \
PCRE_DUPNAMES|PCRE_NEWLINE_CR|PCRE_NEWLINE_LF)
PCRE_DUPNAMES|PCRE_NEWLINE_BITS)
#define PUBLIC_EXEC_OPTIONS \
(PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \
PCRE_PARTIAL|PCRE_NEWLINE_CR|PCRE_NEWLINE_LF)
PCRE_PARTIAL|PCRE_NEWLINE_BITS)
#define PUBLIC_DFA_EXEC_OPTIONS \
(PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \
PCRE_PARTIAL|PCRE_DFA_SHORTEST|PCRE_DFA_RESTART|PCRE_NEWLINE_CR| \
PCRE_NEWLINE_LF)
PCRE_PARTIAL|PCRE_DFA_SHORTEST|PCRE_DFA_RESTART|PCRE_NEWLINE_BITS)
#define PUBLIC_STUDY_OPTIONS 0 /* None defined */
@@ -459,9 +557,7 @@ 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). */
/* Escape items that are just an encoding of a particular data value. */
#ifndef ESC_e
#define ESC_e 27
@@ -472,7 +568,7 @@ ESC_n is defined as yet another macro, which is set in config.h to either \n
#endif
#ifndef ESC_n
#define ESC_n NEWLINE
#define ESC_n '\n'
#endif
#ifndef ESC_r
@@ -511,21 +607,28 @@ 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
ESC_REF as subsequent values are used for backreferences (\1, \2, \3, etc).
There 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 };
enum { ESC_A = 1, ESC_G, ESC_K, 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_R, ESC_H, ESC_h,
ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z, ESC_E, ESC_Q, ESC_k, ESC_REF };
/* 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. */
To keep stored, compiled patterns compatible, new opcodes should be added
immediately before OP_BRA, where (since release 7.0) a gap is left for this
purpose.
*** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
that follow must also be updated to match. There is also a table called
"coptable" in pcre_dfa_exec.c that must be updated. */
enum {
OP_END, /* 0 End of pattern */
@@ -534,141 +637,162 @@ enum {
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_SET_SOM, /* 3 Set start of match (\K) */
OP_NOT_WORD_BOUNDARY, /* 4 \B */
OP_WORD_BOUNDARY, /* 5 \b */
OP_NOT_DIGIT, /* 6 \D */
OP_DIGIT, /* 7 \d */
OP_NOT_WHITESPACE, /* 8 \S */
OP_WHITESPACE, /* 9 \s */
OP_NOT_WORDCHAR, /* 10 \W */
OP_WORDCHAR, /* 11 \w */
OP_ANY, /* 12 Match any character */
OP_ANYBYTE, /* 13 Match any byte (\C); different to OP_ANY for UTF-8 */
OP_NOTPROP, /* 14 \P (not Unicode property) */
OP_PROP, /* 15 \p (Unicode property) */
OP_ANYNL, /* 16 \R (any newline sequence) */
OP_NOT_HSPACE, /* 17 \H (not horizontal whitespace) */
OP_HSPACE, /* 18 \h (horizontal whitespace) */
OP_NOT_VSPACE, /* 19 \V (not vertical whitespace) */
OP_VSPACE, /* 20 \v (vertical whitespace) */
OP_EXTUNI, /* 21 \X (extended Unicode sequence */
OP_EODN, /* 22 End of data or \n at end of data: \Z. */
OP_EOD, /* 23 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 one character, not the following one */
OP_OPT, /* 24 Set runtime options */
OP_CIRC, /* 25 Start of line - varies with multiline switch */
OP_DOLL, /* 26 End of line - varies with multiline switch */
OP_CHAR, /* 27 Match one character, casefully */
OP_CHARNC, /* 28 Match one character, caselessly */
OP_NOT, /* 29 Match one character, not the following one */
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_STAR, /* 30 The maximizing and minimizing versions of */
OP_MINSTAR, /* 31 these six opcodes must come in pairs, with */
OP_PLUS, /* 32 the minimizing one second. */
OP_MINPLUS, /* 33 This first set applies to single characters.*/
OP_QUERY, /* 34 */
OP_MINQUERY, /* 35 */
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_UPTO, /* 36 From 0 to n matches */
OP_MINUPTO, /* 37 */
OP_EXACT, /* 38 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_POSSTAR, /* 39 Possessified star */
OP_POSPLUS, /* 40 Possessified plus */
OP_POSQUERY, /* 41 Posesssified query */
OP_POSUPTO, /* 42 Possessified upto */
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_NOTSTAR, /* 43 The maximizing and minimizing versions of */
OP_NOTMINSTAR, /* 44 these six opcodes must come in pairs, with */
OP_NOTPLUS, /* 45 the minimizing one second. They must be in */
OP_NOTMINPLUS, /* 46 exactly the same order as those above. */
OP_NOTQUERY, /* 47 This set applies to "not" single characters. */
OP_NOTMINQUERY, /* 48 */
OP_CLASS, /* 59 Match a character class, chars < 256 only */
OP_NCLASS, /* 60 Same, but the bitmap was created from a negative
OP_NOTUPTO, /* 49 From 0 to n matches */
OP_NOTMINUPTO, /* 50 */
OP_NOTEXACT, /* 51 Exactly n matches */
OP_NOTPOSSTAR, /* 52 Possessified versions */
OP_NOTPOSPLUS, /* 53 */
OP_NOTPOSQUERY, /* 54 */
OP_NOTPOSUPTO, /* 55 */
OP_TYPESTAR, /* 56 The maximizing and minimizing versions of */
OP_TYPEMINSTAR, /* 57 these six opcodes must come in pairs, with */
OP_TYPEPLUS, /* 58 the minimizing one second. These codes must */
OP_TYPEMINPLUS, /* 59 be in exactly the same order as those above. */
OP_TYPEQUERY, /* 60 This set applies to character types such as \d */
OP_TYPEMINQUERY, /* 61 */
OP_TYPEUPTO, /* 62 From 0 to n matches */
OP_TYPEMINUPTO, /* 63 */
OP_TYPEEXACT, /* 64 Exactly n matches */
OP_TYPEPOSSTAR, /* 65 Possessified versions */
OP_TYPEPOSPLUS, /* 66 */
OP_TYPEPOSQUERY, /* 67 */
OP_TYPEPOSUPTO, /* 68 */
OP_CRSTAR, /* 69 The maximizing and minimizing versions of */
OP_CRMINSTAR, /* 70 all these opcodes must come in pairs, with */
OP_CRPLUS, /* 71 the minimizing one second. These codes must */
OP_CRMINPLUS, /* 72 be in exactly the same order as those above. */
OP_CRQUERY, /* 73 These are for character classes and back refs */
OP_CRMINQUERY, /* 74 */
OP_CRRANGE, /* 75 These are different to the three sets above. */
OP_CRMINRANGE, /* 76 */
OP_CLASS, /* 77 Match a character class, chars < 256 only */
OP_NCLASS, /* 78 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
OP_XCLASS, /* 79 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_REF, /* 80 Match a back reference */
OP_RECURSE, /* 81 Match a numbered subpattern (possibly recursive) */
OP_CALLOUT, /* 82 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. */
OP_ALT, /* 83 Start of alternation */
OP_KET, /* 84 End of group that doesn't have an unbounded repeat */
OP_KETRMAX, /* 85 These two must remain together and in this */
OP_KETRMIN, /* 86 order. They are for groups the repeat for ever. */
/* The assertions must come before ONCE and COND */
/* The assertions must come before BRA, CBRA, 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 */
OP_ASSERT, /* 87 Positive lookahead */
OP_ASSERT_NOT, /* 88 Negative lookahead */
OP_ASSERTBACK, /* 89 Positive lookbehind */
OP_ASSERTBACK_NOT, /* 90 Negative lookbehind */
OP_REVERSE, /* 91 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. */
/* ONCE, BRA, CBRA, 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_ONCE, /* 92 Atomic group */
OP_BRA, /* 83 Start of non-capturing bracket */
OP_CBRA, /* 94 Start of capturing bracket */
OP_COND, /* 95 Conditional group */
OP_BRAZERO, /* 77 These two must remain together and in this */
OP_BRAMINZERO, /* 78 order. */
/* These three must follow the previous three, in the same order. There's a
check for >= SBRA to distinguish the two sets. */
OP_BRANUMBER, /* 79 Used for extracting brackets whose number is greater
than can fit into an opcode. */
OP_SBRA, /* 96 Start of non-capturing bracket, check empty */
OP_SCBRA, /* 97 Start of capturing bracket, check empty */
OP_SCOND, /* 98 Conditional group, check empty */
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. */
OP_CREF, /* 99 Used to hold a capture number as condition */
OP_RREF, /* 100 Used to hold a recursion number as condition */
OP_DEF, /* 101 The DEFINE condition */
OP_BRAZERO, /* 102 These two must remain together and in this */
OP_BRAMINZERO /* 103 order. */
};
/* 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. These are used only
for debugging. The macro is referenced only in pcre_printint.c. */
#define OP_NAME_LIST \
"End", "\\A", "\\G", "\\B", "\\b", "\\D", "\\d", \
"End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d", \
"\\S", "\\s", "\\W", "\\w", "Any", "Anybyte", \
"notprop", "prop", "extuni", \
"\\Z", "\\z", \
"notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v", \
"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"
"AssertB", "AssertB not", "Reverse", \
"Once", "Bra 0", "Bra", "Cond", "SBra 0", "SBra", "SCond", \
"Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero"
/* This macro defines the length of fixed length operations in the compiled
@@ -682,9 +806,11 @@ 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, 1, 1, 1, /* \A, \G, \K, \B, \b */ \
1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
1, 1, /* Any, Anybyte */ \
3, 3, 1, /* NOTPROP, PROP, EXTUNI */ \
1, 1, 1, 1, 1, /* \R, \H, \h, \V, \v */ \
1, 1, 2, 1, 1, /* \Z, \z, Opt, ^, $ */ \
2, /* Char - the minimum length */ \
2, /* Charnc - the minimum length */ \
@@ -692,12 +818,15 @@ in UTF-8 mode. The code that uses this table must know about such things. */
/* Positive single-char repeats ** These are */ \
2, 2, 2, 2, 2, 2, /* *, *?, +, +?, ?, ?? ** minima in */ \
4, 4, 4, /* upto, minupto, exact ** UTF-8 mode */ \
2, 2, 2, 4, /* *+, ++, ?+, upto+ */ \
/* Negative single-char repeats - only for chars < 256 */ \
2, 2, 2, 2, 2, 2, /* NOT *, *?, +, +?, ?, ?? */ \
4, 4, 4, /* NOT upto, minupto, exact */ \
2, 2, 2, 4, /* Possessive *, +, ?, upto */ \
/* Positive type repeats */ \
2, 2, 2, 2, 2, 2, /* Type *, *?, +, +?, ?, ?? */ \
4, 4, 4, /* Type upto, minupto, exact */ \
2, 2, 2, 4, /* Possessive *+, ++, ?+, upto+ */ \
/* Character class & ref repeats */ \
1, 1, 1, 1, 1, 1, /* *, *?, +, +?, ?, ?? */ \
5, 5, /* CRRANGE, CRMINRANGE */ \
@@ -716,17 +845,22 @@ in UTF-8 mode. The code that uses this table must know about such things. */
1+LINK_SIZE, /* Assert behind */ \
1+LINK_SIZE, /* Assert behind not */ \
1+LINK_SIZE, /* Reverse */ \
1+LINK_SIZE, /* Once */ \
1+LINK_SIZE, /* ONCE */ \
1+LINK_SIZE, /* BRA */ \
3+LINK_SIZE, /* CBRA */ \
1+LINK_SIZE, /* COND */ \
1+LINK_SIZE, /* SBRA */ \
3+LINK_SIZE, /* SCBRA */ \
1+LINK_SIZE, /* SCOND */ \
3, /* CREF */ \
3, /* RREF */ \
1, /* DEF */ \
1, 1, /* BRAZERO, BRAMINZERO */ \
3, /* BRANUMBER */ \
1+LINK_SIZE /* BRA */ \
/* A magic value for OP_CREF to indicate the "in recursion" condition. */
/* A magic value for OP_RREF to indicate the "any recursion" condition. */
#define CREF_RECURSE 0xffff
#define RREF_ANY 0xffff
/* Error code numbers. They are given names so that they can more easily be
tracked. */
@@ -736,7 +870,7 @@ enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
ERR50, ERR51 };
ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58 };
/* 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
@@ -791,17 +925,23 @@ typedef struct compile_data {
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_workspace;/* The start of working space */
const uschar *start_code; /* The start of the compiled code */
const uschar *start_pattern; /* The start of the pattern */
const uschar *end_pattern; /* The end of the pattern */
uschar *hwm; /* High watermark of workspace */
uschar *name_table; /* The name/number table */
int names_found; /* Number of entries so far */
int name_entry_size; /* Size of each entry */
int bracount; /* Count of capturing parens */
int top_backref; /* Maximum back reference */
unsigned int backref_map; /* Bitmap of low back refs */
int external_options; /* External (initial) options */
int req_varyopt; /* "After variable item" flag for reqbyte */
BOOL nopartial; /* Set TRUE if partial won't work */
int nllen; /* 1 or 2 for newline string length */
uschar nl[4]; /* Newline string */
int nltype; /* Newline type */
int nllen; /* Newline string length */
uschar nl[4]; /* Newline string when fixed length */
} compile_data;
/* Structure for maintaining a chain of pointers to the currently incomplete
@@ -819,33 +959,34 @@ 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 */
USPTR save_start; /* Old value of md->start_match */
USPTR save_start; /* Old value of mstart */
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_exec.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. */
/* Structure for building a chain of data for holding the values of the subject
pointer at the start of each subpattern, so as to detect when an empty string
has been matched by a subpattern - to break infinite loops. */
typedef struct eptrblock {
struct eptrblock *epb_prev;
USPTR epb_saved_eptr;
} eptrblock;
struct heapframe;
/* Structure for passing "static" information around between the functions
doing traditional NFA matching, so that they are thread-safe. */
typedef struct match_data {
unsigned long int match_call_count; /* As it says */
unsigned long int match_call_count; /* As it says */
unsigned long int match_limit; /* As it says */
unsigned long int match_limit_recursion; /* As it says */
int *offset_vector; /* Offset vector */
int offset_end; /* One past the end */
int offset_max; /* The maximum usable for return data */
int nllen; /* 1 or 2 for newline string length */
uschar nl[4]; /* Newline string */
int nltype; /* Newline type */
int nllen; /* Newline string length */
uschar nl[4]; /* Newline string when fixed */
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 */
@@ -859,14 +1000,15 @@ typedef struct match_data {
const uschar *start_code; /* For use when recursing */
USPTR start_subject; /* Start of the subject string */
USPTR end_subject; /* End of the subject string */
USPTR start_match; /* Start of this match attempt */
USPTR start_match_ptr; /* Start of matched string */
USPTR 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 */
eptrblock *eptrchain; /* Chain of eptrblocks for tail recursions */
int eptrn; /* Next free eptrblock */
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;
/* A similar structure is used for the same purpose by the DFA matching
@@ -879,8 +1021,9 @@ typedef struct dfa_match_data {
const uschar *tables; /* Character tables */
int moptions; /* Match options */
int poptions; /* Pattern options */
int nllen; /* 1 or 2 for newline string length */
uschar nl[4]; /* Newline string */
int nltype; /* Newline type */
int nllen; /* Newline string length */
uschar nl[4]; /* Newline string when fixed */
void *callout_data; /* To pass back to callouts */
} dfa_match_data;
@@ -951,13 +1094,17 @@ extern const uschar _pcre_OP_lengths[];
one of the exported public functions. They have to be "external" in the C
sense, but are not part of the PCRE public API. */
extern int _pcre_ord2utf8(int, uschar *);
extern real_pcre * _pcre_try_flipped(const real_pcre *, real_pcre *,
const pcre_study_data *, pcre_study_data *);
extern int _pcre_ucp_findprop(const unsigned int, int *, int *);
extern int _pcre_ucp_othercase(const int);
extern int _pcre_valid_utf8(const uschar *, int);
extern BOOL _pcre_xclass(int, const uschar *);
extern BOOL _pcre_is_newline(const uschar *, int, const uschar *,
int *, BOOL);
extern int _pcre_ord2utf8(int, uschar *);
extern real_pcre *_pcre_try_flipped(const real_pcre *, real_pcre *,
const pcre_study_data *, pcre_study_data *);
extern int _pcre_ucp_findprop(const unsigned int, int *, int *);
extern unsigned int _pcre_ucp_othercase(const unsigned int);
extern int _pcre_valid_utf8(const uschar *, int);
extern BOOL _pcre_was_newline(const uschar *, int, const uschar *,
int *, BOOL);
extern BOOL _pcre_xclass(int, const uschar *);
#endif