1745 lines
70 KiB
C
1745 lines
70 KiB
C
/*************************************************
|
|
* Perl-Compatible Regular Expressions *
|
|
*************************************************/
|
|
|
|
|
|
/* PCRE 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.
|
|
|
|
Written by Philip Hazel
|
|
Copyright (c) 1997-2009 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 exported API. This includes some
|
|
functions whose names all begin with "_pcre_". */
|
|
|
|
#ifndef PCRE_INTERNAL_H
|
|
#define PCRE_INTERNAL_H
|
|
|
|
/* Define DEBUG to get debugging output on stdout. */
|
|
|
|
#if 0
|
|
#define DEBUG
|
|
#endif
|
|
|
|
/* We do not support both EBCDIC and UTF-8 at the same time. The "configure"
|
|
script prevents both being selected, but not everybody uses "configure". */
|
|
|
|
#if defined EBCDIC && defined SUPPORT_UTF8
|
|
#error The use of both EBCDIC and SUPPORT_UTF8 is not supported.
|
|
#endif
|
|
|
|
/* If SUPPORT_UCP is defined, SUPPORT_UTF8 must also be defined. The
|
|
"configure" script ensures this, but not everybody uses "configure". */
|
|
|
|
#if defined SUPPORT_UCP && !defined SUPPORT_UTF8
|
|
#define SUPPORT_UTF8 1
|
|
#endif
|
|
|
|
/* 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...
|
|
|
|
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
|
|
|
|
|
|
/* 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>
|
|
|
|
/* 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
|
|
# ifndef PCRE_STATIC
|
|
# 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
|
|
|
|
/* When compiling with the MSVC compiler, it is sometimes necessary to include
|
|
a "calling convention" before exported function names. (This is secondhand
|
|
information; I know nothing about MSVC myself). For example, something like
|
|
|
|
void __cdecl function(....)
|
|
|
|
might be needed. In order so make this easy, all the exported functions have
|
|
PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
|
|
set, we ensure here that it has no effect. */
|
|
|
|
#ifndef PCRE_CALL_CONVENTION
|
|
#define PCRE_CALL_CONVENTION
|
|
#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;
|
|
typedef short pcre_int16;
|
|
#elif UINT_MAX == 65535
|
|
typedef unsigned int pcre_uint16;
|
|
typedef int pcre_int16;
|
|
#else
|
|
#error Cannot determine a type for 16-bit unsigned integers
|
|
#endif
|
|
|
|
#if UINT_MAX == 4294967295
|
|
typedef unsigned int pcre_uint32;
|
|
typedef int pcre_int32;
|
|
#elif ULONG_MAX == 4294967295
|
|
typedef unsigned long int pcre_uint32;
|
|
typedef long int pcre_int32;
|
|
#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;
|
|
|
|
/* 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) \
|
|
((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]) \
|
|
) \
|
|
)
|
|
|
|
/* 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
|
|
#define PCRE_SPTR CUSTOM_SUBJECT_PTR
|
|
#define USPTR CUSTOM_SUBJECT_PTR
|
|
#else
|
|
#define PCRE_SPTR const char *
|
|
#define USPTR const unsigned char *
|
|
#endif
|
|
|
|
|
|
|
|
/* Include the public PCRE header and the definitions of UCP character property
|
|
values. */
|
|
|
|
#include "pcre.h"
|
|
#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)
|
|
#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). */
|
|
|
|
#ifndef HAVE_MEMMOVE
|
|
#undef memmove /* some systems may have a macro */
|
|
#ifdef HAVE_BCOPY
|
|
#define memmove(a, b, c) bcopy(b, a, c)
|
|
#else /* HAVE_BCOPY */
|
|
static void *
|
|
pcre_memmove(void *d, const void *s, size_t n)
|
|
{
|
|
size_t i;
|
|
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 */
|
|
#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
|
|
|
|
|
|
/* When UTF-8 encoding is being used, a character is no longer just a single
|
|
byte. The macros for character handling generate simple sequences when used in
|
|
byte-mode, and more complicated ones for UTF-8 characters. BACKCHAR should
|
|
never be called in byte mode. To make sure it can never even appear when UTF-8
|
|
support is omitted, we don't even define it. */
|
|
|
|
#ifndef SUPPORT_UTF8
|
|
#define GETCHAR(c, eptr) c = *eptr;
|
|
#define GETCHARTEST(c, eptr) c = *eptr;
|
|
#define GETCHARINC(c, eptr) c = *eptr++;
|
|
#define GETCHARINCTEST(c, eptr) c = *eptr++;
|
|
#define GETCHARLEN(c, eptr, len) c = *eptr;
|
|
/* #define BACKCHAR(eptr) */
|
|
|
|
#else /* SUPPORT_UTF8 */
|
|
|
|
/* Get the next UTF-8 character, not advancing the pointer. This is called when
|
|
we know we are in UTF-8 mode. */
|
|
|
|
#define GETCHAR(c, eptr) \
|
|
c = *eptr; \
|
|
if (c >= 0xc0) \
|
|
{ \
|
|
int gcii; \
|
|
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
|
|
int gcss = 6*gcaa; \
|
|
c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
|
|
for (gcii = 1; gcii <= gcaa; gcii++) \
|
|
{ \
|
|
gcss -= 6; \
|
|
c |= (eptr[gcii] & 0x3f) << gcss; \
|
|
} \
|
|
}
|
|
|
|
/* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
|
|
pointer. */
|
|
|
|
#define GETCHARTEST(c, eptr) \
|
|
c = *eptr; \
|
|
if (utf8 && c >= 0xc0) \
|
|
{ \
|
|
int gcii; \
|
|
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
|
|
int gcss = 6*gcaa; \
|
|
c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
|
|
for (gcii = 1; gcii <= gcaa; gcii++) \
|
|
{ \
|
|
gcss -= 6; \
|
|
c |= (eptr[gcii] & 0x3f) << gcss; \
|
|
} \
|
|
}
|
|
|
|
/* Get the next UTF-8 character, advancing the pointer. This is called when we
|
|
know we are in UTF-8 mode. */
|
|
|
|
#define GETCHARINC(c, eptr) \
|
|
c = *eptr++; \
|
|
if (c >= 0xc0) \
|
|
{ \
|
|
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
|
|
int gcss = 6*gcaa; \
|
|
c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
|
|
while (gcaa-- > 0) \
|
|
{ \
|
|
gcss -= 6; \
|
|
c |= (*eptr++ & 0x3f) << gcss; \
|
|
} \
|
|
}
|
|
|
|
/* Get the next character, testing for UTF-8 mode, and advancing the pointer */
|
|
|
|
#define GETCHARINCTEST(c, eptr) \
|
|
c = *eptr++; \
|
|
if (utf8 && c >= 0xc0) \
|
|
{ \
|
|
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
|
|
int gcss = 6*gcaa; \
|
|
c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
|
|
while (gcaa-- > 0) \
|
|
{ \
|
|
gcss -= 6; \
|
|
c |= (*eptr++ & 0x3f) << gcss; \
|
|
} \
|
|
}
|
|
|
|
/* Get the next UTF-8 character, not advancing the pointer, incrementing length
|
|
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) \
|
|
{ \
|
|
int gcii; \
|
|
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
|
|
int gcss = 6*gcaa; \
|
|
c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
|
|
for (gcii = 1; gcii <= gcaa; gcii++) \
|
|
{ \
|
|
gcss -= 6; \
|
|
c |= (eptr[gcii] & 0x3f) << gcss; \
|
|
} \
|
|
len += gcaa; \
|
|
}
|
|
|
|
/* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
|
|
pointer, incrementing length if there are extra bytes. This is called when we
|
|
know we are in UTF-8 mode. */
|
|
|
|
#define GETCHARLENTEST(c, eptr, len) \
|
|
c = *eptr; \
|
|
if (utf8 && c >= 0xc0) \
|
|
{ \
|
|
int gcii; \
|
|
int gcaa = _pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ \
|
|
int gcss = 6*gcaa; \
|
|
c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
|
|
for (gcii = 1; gcii <= gcaa; gcii++) \
|
|
{ \
|
|
gcss -= 6; \
|
|
c |= (eptr[gcii] & 0x3f) << gcss; \
|
|
} \
|
|
len += gcaa; \
|
|
}
|
|
|
|
/* If the pointer is not at the start of a character, move it back until
|
|
it is. This is called only in UTF-8 mode - we don't put a test within the macro
|
|
because almost all calls are already within a block of UTF-8 only code. */
|
|
|
|
#define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
|
|
|
|
#endif
|
|
|
|
|
|
/* 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 flags containing information about the compiled regex. They used to
|
|
live at the top end of the options word, but that got almost full, so now they
|
|
are in a 16-bit flags word. */
|
|
|
|
#define PCRE_NOPARTIAL 0x0001 /* can't use partial with this regex */
|
|
#define PCRE_FIRSTSET 0x0002 /* first_byte is set */
|
|
#define PCRE_REQCHSET 0x0004 /* req_byte is set */
|
|
#define PCRE_STARTLINE 0x0008 /* start after \n for multiline */
|
|
#define PCRE_JCHANGED 0x0010 /* j option used in regex */
|
|
#define PCRE_HASCRORLF 0x0020 /* explicit \r or \n in pattern */
|
|
|
|
/* 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 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_COMPILE_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_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
|
|
PCRE_JAVASCRIPT_COMPAT)
|
|
|
|
#define PUBLIC_EXEC_OPTIONS \
|
|
(PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \
|
|
PCRE_PARTIAL|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
|
|
PCRE_NO_START_OPTIMIZE)
|
|
|
|
#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_BITS| \
|
|
PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
|
|
|
|
#define PUBLIC_STUDY_OPTIONS 0 /* None defined */
|
|
|
|
/* Magic number to provide a small check against being handed junk. Also used
|
|
to detect whether a pattern was compiled on a host of different endianness. */
|
|
|
|
#define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */
|
|
|
|
/* Negative values for the firstchar and reqchar variables */
|
|
|
|
#define REQ_UNSET (-2)
|
|
#define REQ_NONE (-1)
|
|
|
|
/* The maximum remaining length of subject we are prepared to search for a
|
|
req_byte match. */
|
|
|
|
#define REQ_BYTE_MAX 1000
|
|
|
|
/* 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. The #ifndef is to pacify compiler warnings in
|
|
environments where these macros are defined elsewhere. Unfortunately, there
|
|
is no way to do the same for the typedef. */
|
|
|
|
typedef int BOOL;
|
|
|
|
#ifndef FALSE
|
|
#define FALSE 0
|
|
#define TRUE 1
|
|
#endif
|
|
|
|
/* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
|
|
character constants like '*' because the compiler would emit their EBCDIC code,
|
|
which is different from their ASCII/UTF-8 code. Instead we define macros for
|
|
the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
|
|
is enabled. When UTF-8 support is not enabled, the definitions use character
|
|
literals. Both character and string versions of each character are needed, and
|
|
there are some longer strings as well.
|
|
|
|
This means that, on EBCDIC platforms, the PCRE library can handle either
|
|
EBCDIC, or UTF-8, but not both. To support both in the same compiled library
|
|
would need different lookups depending on whether PCRE_UTF8 was set or not.
|
|
This would make it impossible to use characters in switch/case statements,
|
|
which would reduce performance. For a theoretical use (which nobody has asked
|
|
for) in a minority area (EBCDIC platforms), this is not sensible. Any
|
|
application that did need both could compile two versions of the library, using
|
|
macros to give the functions distinct names. */
|
|
|
|
#ifndef SUPPORT_UTF8
|
|
|
|
/* UTF-8 support is not enabled; use the platform-dependent character literals
|
|
so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */
|
|
|
|
#define CHAR_HT '\t'
|
|
#define CHAR_VT '\v'
|
|
#define CHAR_FF '\f'
|
|
#define CHAR_CR '\r'
|
|
#define CHAR_NL '\n'
|
|
#define CHAR_BS '\b'
|
|
#define CHAR_BEL '\a'
|
|
#ifdef EBCDIC
|
|
#define CHAR_ESC '\047'
|
|
#define CHAR_DEL '\007'
|
|
#else
|
|
#define CHAR_ESC '\033'
|
|
#define CHAR_DEL '\177'
|
|
#endif
|
|
|
|
#define CHAR_SPACE ' '
|
|
#define CHAR_EXCLAMATION_MARK '!'
|
|
#define CHAR_QUOTATION_MARK '"'
|
|
#define CHAR_NUMBER_SIGN '#'
|
|
#define CHAR_DOLLAR_SIGN '$'
|
|
#define CHAR_PERCENT_SIGN '%'
|
|
#define CHAR_AMPERSAND '&'
|
|
#define CHAR_APOSTROPHE '\''
|
|
#define CHAR_LEFT_PARENTHESIS '('
|
|
#define CHAR_RIGHT_PARENTHESIS ')'
|
|
#define CHAR_ASTERISK '*'
|
|
#define CHAR_PLUS '+'
|
|
#define CHAR_COMMA ','
|
|
#define CHAR_MINUS '-'
|
|
#define CHAR_DOT '.'
|
|
#define CHAR_SLASH '/'
|
|
#define CHAR_0 '0'
|
|
#define CHAR_1 '1'
|
|
#define CHAR_2 '2'
|
|
#define CHAR_3 '3'
|
|
#define CHAR_4 '4'
|
|
#define CHAR_5 '5'
|
|
#define CHAR_6 '6'
|
|
#define CHAR_7 '7'
|
|
#define CHAR_8 '8'
|
|
#define CHAR_9 '9'
|
|
#define CHAR_COLON ':'
|
|
#define CHAR_SEMICOLON ';'
|
|
#define CHAR_LESS_THAN_SIGN '<'
|
|
#define CHAR_EQUALS_SIGN '='
|
|
#define CHAR_GREATER_THAN_SIGN '>'
|
|
#define CHAR_QUESTION_MARK '?'
|
|
#define CHAR_COMMERCIAL_AT '@'
|
|
#define CHAR_A 'A'
|
|
#define CHAR_B 'B'
|
|
#define CHAR_C 'C'
|
|
#define CHAR_D 'D'
|
|
#define CHAR_E 'E'
|
|
#define CHAR_F 'F'
|
|
#define CHAR_G 'G'
|
|
#define CHAR_H 'H'
|
|
#define CHAR_I 'I'
|
|
#define CHAR_J 'J'
|
|
#define CHAR_K 'K'
|
|
#define CHAR_L 'L'
|
|
#define CHAR_M 'M'
|
|
#define CHAR_N 'N'
|
|
#define CHAR_O 'O'
|
|
#define CHAR_P 'P'
|
|
#define CHAR_Q 'Q'
|
|
#define CHAR_R 'R'
|
|
#define CHAR_S 'S'
|
|
#define CHAR_T 'T'
|
|
#define CHAR_U 'U'
|
|
#define CHAR_V 'V'
|
|
#define CHAR_W 'W'
|
|
#define CHAR_X 'X'
|
|
#define CHAR_Y 'Y'
|
|
#define CHAR_Z 'Z'
|
|
#define CHAR_LEFT_SQUARE_BRACKET '['
|
|
#define CHAR_BACKSLASH '\\'
|
|
#define CHAR_RIGHT_SQUARE_BRACKET ']'
|
|
#define CHAR_CIRCUMFLEX_ACCENT '^'
|
|
#define CHAR_UNDERSCORE '_'
|
|
#define CHAR_GRAVE_ACCENT '`'
|
|
#define CHAR_a 'a'
|
|
#define CHAR_b 'b'
|
|
#define CHAR_c 'c'
|
|
#define CHAR_d 'd'
|
|
#define CHAR_e 'e'
|
|
#define CHAR_f 'f'
|
|
#define CHAR_g 'g'
|
|
#define CHAR_h 'h'
|
|
#define CHAR_i 'i'
|
|
#define CHAR_j 'j'
|
|
#define CHAR_k 'k'
|
|
#define CHAR_l 'l'
|
|
#define CHAR_m 'm'
|
|
#define CHAR_n 'n'
|
|
#define CHAR_o 'o'
|
|
#define CHAR_p 'p'
|
|
#define CHAR_q 'q'
|
|
#define CHAR_r 'r'
|
|
#define CHAR_s 's'
|
|
#define CHAR_t 't'
|
|
#define CHAR_u 'u'
|
|
#define CHAR_v 'v'
|
|
#define CHAR_w 'w'
|
|
#define CHAR_x 'x'
|
|
#define CHAR_y 'y'
|
|
#define CHAR_z 'z'
|
|
#define CHAR_LEFT_CURLY_BRACKET '{'
|
|
#define CHAR_VERTICAL_LINE '|'
|
|
#define CHAR_RIGHT_CURLY_BRACKET '}'
|
|
#define CHAR_TILDE '~'
|
|
|
|
#define STR_HT "\t"
|
|
#define STR_VT "\v"
|
|
#define STR_FF "\f"
|
|
#define STR_CR "\r"
|
|
#define STR_NL "\n"
|
|
#define STR_BS "\b"
|
|
#define STR_BEL "\a"
|
|
#ifdef EBCDIC
|
|
#define STR_ESC "\047"
|
|
#define STR_DEL "\007"
|
|
#else
|
|
#define STR_ESC "\033"
|
|
#define STR_DEL "\177"
|
|
#endif
|
|
|
|
#define STR_SPACE " "
|
|
#define STR_EXCLAMATION_MARK "!"
|
|
#define STR_QUOTATION_MARK "\""
|
|
#define STR_NUMBER_SIGN "#"
|
|
#define STR_DOLLAR_SIGN "$"
|
|
#define STR_PERCENT_SIGN "%"
|
|
#define STR_AMPERSAND "&"
|
|
#define STR_APOSTROPHE "'"
|
|
#define STR_LEFT_PARENTHESIS "("
|
|
#define STR_RIGHT_PARENTHESIS ")"
|
|
#define STR_ASTERISK "*"
|
|
#define STR_PLUS "+"
|
|
#define STR_COMMA ","
|
|
#define STR_MINUS "-"
|
|
#define STR_DOT "."
|
|
#define STR_SLASH "/"
|
|
#define STR_0 "0"
|
|
#define STR_1 "1"
|
|
#define STR_2 "2"
|
|
#define STR_3 "3"
|
|
#define STR_4 "4"
|
|
#define STR_5 "5"
|
|
#define STR_6 "6"
|
|
#define STR_7 "7"
|
|
#define STR_8 "8"
|
|
#define STR_9 "9"
|
|
#define STR_COLON ":"
|
|
#define STR_SEMICOLON ";"
|
|
#define STR_LESS_THAN_SIGN "<"
|
|
#define STR_EQUALS_SIGN "="
|
|
#define STR_GREATER_THAN_SIGN ">"
|
|
#define STR_QUESTION_MARK "?"
|
|
#define STR_COMMERCIAL_AT "@"
|
|
#define STR_A "A"
|
|
#define STR_B "B"
|
|
#define STR_C "C"
|
|
#define STR_D "D"
|
|
#define STR_E "E"
|
|
#define STR_F "F"
|
|
#define STR_G "G"
|
|
#define STR_H "H"
|
|
#define STR_I "I"
|
|
#define STR_J "J"
|
|
#define STR_K "K"
|
|
#define STR_L "L"
|
|
#define STR_M "M"
|
|
#define STR_N "N"
|
|
#define STR_O "O"
|
|
#define STR_P "P"
|
|
#define STR_Q "Q"
|
|
#define STR_R "R"
|
|
#define STR_S "S"
|
|
#define STR_T "T"
|
|
#define STR_U "U"
|
|
#define STR_V "V"
|
|
#define STR_W "W"
|
|
#define STR_X "X"
|
|
#define STR_Y "Y"
|
|
#define STR_Z "Z"
|
|
#define STR_LEFT_SQUARE_BRACKET "["
|
|
#define STR_BACKSLASH "\\"
|
|
#define STR_RIGHT_SQUARE_BRACKET "]"
|
|
#define STR_CIRCUMFLEX_ACCENT "^"
|
|
#define STR_UNDERSCORE "_"
|
|
#define STR_GRAVE_ACCENT "`"
|
|
#define STR_a "a"
|
|
#define STR_b "b"
|
|
#define STR_c "c"
|
|
#define STR_d "d"
|
|
#define STR_e "e"
|
|
#define STR_f "f"
|
|
#define STR_g "g"
|
|
#define STR_h "h"
|
|
#define STR_i "i"
|
|
#define STR_j "j"
|
|
#define STR_k "k"
|
|
#define STR_l "l"
|
|
#define STR_m "m"
|
|
#define STR_n "n"
|
|
#define STR_o "o"
|
|
#define STR_p "p"
|
|
#define STR_q "q"
|
|
#define STR_r "r"
|
|
#define STR_s "s"
|
|
#define STR_t "t"
|
|
#define STR_u "u"
|
|
#define STR_v "v"
|
|
#define STR_w "w"
|
|
#define STR_x "x"
|
|
#define STR_y "y"
|
|
#define STR_z "z"
|
|
#define STR_LEFT_CURLY_BRACKET "{"
|
|
#define STR_VERTICAL_LINE "|"
|
|
#define STR_RIGHT_CURLY_BRACKET "}"
|
|
#define STR_TILDE "~"
|
|
|
|
#define STRING_ACCEPT0 "ACCEPT\0"
|
|
#define STRING_COMMIT0 "COMMIT\0"
|
|
#define STRING_F0 "F\0"
|
|
#define STRING_FAIL0 "FAIL\0"
|
|
#define STRING_PRUNE0 "PRUNE\0"
|
|
#define STRING_SKIP0 "SKIP\0"
|
|
#define STRING_THEN "THEN"
|
|
|
|
#define STRING_alpha0 "alpha\0"
|
|
#define STRING_lower0 "lower\0"
|
|
#define STRING_upper0 "upper\0"
|
|
#define STRING_alnum0 "alnum\0"
|
|
#define STRING_ascii0 "ascii\0"
|
|
#define STRING_blank0 "blank\0"
|
|
#define STRING_cntrl0 "cntrl\0"
|
|
#define STRING_digit0 "digit\0"
|
|
#define STRING_graph0 "graph\0"
|
|
#define STRING_print0 "print\0"
|
|
#define STRING_punct0 "punct\0"
|
|
#define STRING_space0 "space\0"
|
|
#define STRING_word0 "word\0"
|
|
#define STRING_xdigit "xdigit"
|
|
|
|
#define STRING_DEFINE "DEFINE"
|
|
|
|
#define STRING_CR_RIGHTPAR "CR)"
|
|
#define STRING_LF_RIGHTPAR "LF)"
|
|
#define STRING_CRLF_RIGHTPAR "CRLF)"
|
|
#define STRING_ANY_RIGHTPAR "ANY)"
|
|
#define STRING_ANYCRLF_RIGHTPAR "ANYCRLF)"
|
|
#define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
|
|
#define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
|
|
#define STRING_UTF8_RIGHTPAR "UTF8)"
|
|
|
|
#else /* SUPPORT_UTF8 */
|
|
|
|
/* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
|
|
works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
|
|
only. */
|
|
|
|
#define CHAR_HT '\011'
|
|
#define CHAR_VT '\013'
|
|
#define CHAR_FF '\014'
|
|
#define CHAR_CR '\015'
|
|
#define CHAR_NL '\012'
|
|
#define CHAR_BS '\010'
|
|
#define CHAR_BEL '\007'
|
|
#define CHAR_ESC '\033'
|
|
#define CHAR_DEL '\177'
|
|
|
|
#define CHAR_SPACE '\040'
|
|
#define CHAR_EXCLAMATION_MARK '\041'
|
|
#define CHAR_QUOTATION_MARK '\042'
|
|
#define CHAR_NUMBER_SIGN '\043'
|
|
#define CHAR_DOLLAR_SIGN '\044'
|
|
#define CHAR_PERCENT_SIGN '\045'
|
|
#define CHAR_AMPERSAND '\046'
|
|
#define CHAR_APOSTROPHE '\047'
|
|
#define CHAR_LEFT_PARENTHESIS '\050'
|
|
#define CHAR_RIGHT_PARENTHESIS '\051'
|
|
#define CHAR_ASTERISK '\052'
|
|
#define CHAR_PLUS '\053'
|
|
#define CHAR_COMMA '\054'
|
|
#define CHAR_MINUS '\055'
|
|
#define CHAR_DOT '\056'
|
|
#define CHAR_SLASH '\057'
|
|
#define CHAR_0 '\060'
|
|
#define CHAR_1 '\061'
|
|
#define CHAR_2 '\062'
|
|
#define CHAR_3 '\063'
|
|
#define CHAR_4 '\064'
|
|
#define CHAR_5 '\065'
|
|
#define CHAR_6 '\066'
|
|
#define CHAR_7 '\067'
|
|
#define CHAR_8 '\070'
|
|
#define CHAR_9 '\071'
|
|
#define CHAR_COLON '\072'
|
|
#define CHAR_SEMICOLON '\073'
|
|
#define CHAR_LESS_THAN_SIGN '\074'
|
|
#define CHAR_EQUALS_SIGN '\075'
|
|
#define CHAR_GREATER_THAN_SIGN '\076'
|
|
#define CHAR_QUESTION_MARK '\077'
|
|
#define CHAR_COMMERCIAL_AT '\100'
|
|
#define CHAR_A '\101'
|
|
#define CHAR_B '\102'
|
|
#define CHAR_C '\103'
|
|
#define CHAR_D '\104'
|
|
#define CHAR_E '\105'
|
|
#define CHAR_F '\106'
|
|
#define CHAR_G '\107'
|
|
#define CHAR_H '\110'
|
|
#define CHAR_I '\111'
|
|
#define CHAR_J '\112'
|
|
#define CHAR_K '\113'
|
|
#define CHAR_L '\114'
|
|
#define CHAR_M '\115'
|
|
#define CHAR_N '\116'
|
|
#define CHAR_O '\117'
|
|
#define CHAR_P '\120'
|
|
#define CHAR_Q '\121'
|
|
#define CHAR_R '\122'
|
|
#define CHAR_S '\123'
|
|
#define CHAR_T '\124'
|
|
#define CHAR_U '\125'
|
|
#define CHAR_V '\126'
|
|
#define CHAR_W '\127'
|
|
#define CHAR_X '\130'
|
|
#define CHAR_Y '\131'
|
|
#define CHAR_Z '\132'
|
|
#define CHAR_LEFT_SQUARE_BRACKET '\133'
|
|
#define CHAR_BACKSLASH '\134'
|
|
#define CHAR_RIGHT_SQUARE_BRACKET '\135'
|
|
#define CHAR_CIRCUMFLEX_ACCENT '\136'
|
|
#define CHAR_UNDERSCORE '\137'
|
|
#define CHAR_GRAVE_ACCENT '\140'
|
|
#define CHAR_a '\141'
|
|
#define CHAR_b '\142'
|
|
#define CHAR_c '\143'
|
|
#define CHAR_d '\144'
|
|
#define CHAR_e '\145'
|
|
#define CHAR_f '\146'
|
|
#define CHAR_g '\147'
|
|
#define CHAR_h '\150'
|
|
#define CHAR_i '\151'
|
|
#define CHAR_j '\152'
|
|
#define CHAR_k '\153'
|
|
#define CHAR_l '\154'
|
|
#define CHAR_m '\155'
|
|
#define CHAR_n '\156'
|
|
#define CHAR_o '\157'
|
|
#define CHAR_p '\160'
|
|
#define CHAR_q '\161'
|
|
#define CHAR_r '\162'
|
|
#define CHAR_s '\163'
|
|
#define CHAR_t '\164'
|
|
#define CHAR_u '\165'
|
|
#define CHAR_v '\166'
|
|
#define CHAR_w '\167'
|
|
#define CHAR_x '\170'
|
|
#define CHAR_y '\171'
|
|
#define CHAR_z '\172'
|
|
#define CHAR_LEFT_CURLY_BRACKET '\173'
|
|
#define CHAR_VERTICAL_LINE '\174'
|
|
#define CHAR_RIGHT_CURLY_BRACKET '\175'
|
|
#define CHAR_TILDE '\176'
|
|
|
|
#define STR_HT "\011"
|
|
#define STR_VT "\013"
|
|
#define STR_FF "\014"
|
|
#define STR_CR "\015"
|
|
#define STR_NL "\012"
|
|
#define STR_BS "\010"
|
|
#define STR_BEL "\007"
|
|
#define STR_ESC "\033"
|
|
#define STR_DEL "\177"
|
|
|
|
#define STR_SPACE "\040"
|
|
#define STR_EXCLAMATION_MARK "\041"
|
|
#define STR_QUOTATION_MARK "\042"
|
|
#define STR_NUMBER_SIGN "\043"
|
|
#define STR_DOLLAR_SIGN "\044"
|
|
#define STR_PERCENT_SIGN "\045"
|
|
#define STR_AMPERSAND "\046"
|
|
#define STR_APOSTROPHE "\047"
|
|
#define STR_LEFT_PARENTHESIS "\050"
|
|
#define STR_RIGHT_PARENTHESIS "\051"
|
|
#define STR_ASTERISK "\052"
|
|
#define STR_PLUS "\053"
|
|
#define STR_COMMA "\054"
|
|
#define STR_MINUS "\055"
|
|
#define STR_DOT "\056"
|
|
#define STR_SLASH "\057"
|
|
#define STR_0 "\060"
|
|
#define STR_1 "\061"
|
|
#define STR_2 "\062"
|
|
#define STR_3 "\063"
|
|
#define STR_4 "\064"
|
|
#define STR_5 "\065"
|
|
#define STR_6 "\066"
|
|
#define STR_7 "\067"
|
|
#define STR_8 "\070"
|
|
#define STR_9 "\071"
|
|
#define STR_COLON "\072"
|
|
#define STR_SEMICOLON "\073"
|
|
#define STR_LESS_THAN_SIGN "\074"
|
|
#define STR_EQUALS_SIGN "\075"
|
|
#define STR_GREATER_THAN_SIGN "\076"
|
|
#define STR_QUESTION_MARK "\077"
|
|
#define STR_COMMERCIAL_AT "\100"
|
|
#define STR_A "\101"
|
|
#define STR_B "\102"
|
|
#define STR_C "\103"
|
|
#define STR_D "\104"
|
|
#define STR_E "\105"
|
|
#define STR_F "\106"
|
|
#define STR_G "\107"
|
|
#define STR_H "\110"
|
|
#define STR_I "\111"
|
|
#define STR_J "\112"
|
|
#define STR_K "\113"
|
|
#define STR_L "\114"
|
|
#define STR_M "\115"
|
|
#define STR_N "\116"
|
|
#define STR_O "\117"
|
|
#define STR_P "\120"
|
|
#define STR_Q "\121"
|
|
#define STR_R "\122"
|
|
#define STR_S "\123"
|
|
#define STR_T "\124"
|
|
#define STR_U "\125"
|
|
#define STR_V "\126"
|
|
#define STR_W "\127"
|
|
#define STR_X "\130"
|
|
#define STR_Y "\131"
|
|
#define STR_Z "\132"
|
|
#define STR_LEFT_SQUARE_BRACKET "\133"
|
|
#define STR_BACKSLASH "\134"
|
|
#define STR_RIGHT_SQUARE_BRACKET "\135"
|
|
#define STR_CIRCUMFLEX_ACCENT "\136"
|
|
#define STR_UNDERSCORE "\137"
|
|
#define STR_GRAVE_ACCENT "\140"
|
|
#define STR_a "\141"
|
|
#define STR_b "\142"
|
|
#define STR_c "\143"
|
|
#define STR_d "\144"
|
|
#define STR_e "\145"
|
|
#define STR_f "\146"
|
|
#define STR_g "\147"
|
|
#define STR_h "\150"
|
|
#define STR_i "\151"
|
|
#define STR_j "\152"
|
|
#define STR_k "\153"
|
|
#define STR_l "\154"
|
|
#define STR_m "\155"
|
|
#define STR_n "\156"
|
|
#define STR_o "\157"
|
|
#define STR_p "\160"
|
|
#define STR_q "\161"
|
|
#define STR_r "\162"
|
|
#define STR_s "\163"
|
|
#define STR_t "\164"
|
|
#define STR_u "\165"
|
|
#define STR_v "\166"
|
|
#define STR_w "\167"
|
|
#define STR_x "\170"
|
|
#define STR_y "\171"
|
|
#define STR_z "\172"
|
|
#define STR_LEFT_CURLY_BRACKET "\173"
|
|
#define STR_VERTICAL_LINE "\174"
|
|
#define STR_RIGHT_CURLY_BRACKET "\175"
|
|
#define STR_TILDE "\176"
|
|
|
|
#define STRING_ACCEPT0 STR_A STR_C STR_C STR_E STR_P STR_T "\0"
|
|
#define STRING_COMMIT0 STR_C STR_O STR_M STR_M STR_I STR_T "\0"
|
|
#define STRING_F0 STR_F "\0"
|
|
#define STRING_FAIL0 STR_F STR_A STR_I STR_L "\0"
|
|
#define STRING_PRUNE0 STR_P STR_R STR_U STR_N STR_E "\0"
|
|
#define STRING_SKIP0 STR_S STR_K STR_I STR_P "\0"
|
|
#define STRING_THEN STR_T STR_H STR_E STR_N
|
|
|
|
#define STRING_alpha0 STR_a STR_l STR_p STR_h STR_a "\0"
|
|
#define STRING_lower0 STR_l STR_o STR_w STR_e STR_r "\0"
|
|
#define STRING_upper0 STR_u STR_p STR_p STR_e STR_r "\0"
|
|
#define STRING_alnum0 STR_a STR_l STR_n STR_u STR_m "\0"
|
|
#define STRING_ascii0 STR_a STR_s STR_c STR_i STR_i "\0"
|
|
#define STRING_blank0 STR_b STR_l STR_a STR_n STR_k "\0"
|
|
#define STRING_cntrl0 STR_c STR_n STR_t STR_r STR_l "\0"
|
|
#define STRING_digit0 STR_d STR_i STR_g STR_i STR_t "\0"
|
|
#define STRING_graph0 STR_g STR_r STR_a STR_p STR_h "\0"
|
|
#define STRING_print0 STR_p STR_r STR_i STR_n STR_t "\0"
|
|
#define STRING_punct0 STR_p STR_u STR_n STR_c STR_t "\0"
|
|
#define STRING_space0 STR_s STR_p STR_a STR_c STR_e "\0"
|
|
#define STRING_word0 STR_w STR_o STR_r STR_d "\0"
|
|
#define STRING_xdigit STR_x STR_d STR_i STR_g STR_i STR_t
|
|
|
|
#define STRING_DEFINE STR_D STR_E STR_F STR_I STR_N STR_E
|
|
|
|
#define STRING_CR_RIGHTPAR STR_C STR_R STR_RIGHT_PARENTHESIS
|
|
#define STRING_LF_RIGHTPAR STR_L STR_F STR_RIGHT_PARENTHESIS
|
|
#define STRING_CRLF_RIGHTPAR STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
|
|
#define STRING_ANY_RIGHTPAR STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
|
|
#define STRING_ANYCRLF_RIGHTPAR STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
|
|
#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
|
|
#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
|
|
#define STRING_UTF8_RIGHTPAR STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
|
|
|
|
#endif /* SUPPORT_UTF8 */
|
|
|
|
/* Escape items that are just an encoding of a particular data value. */
|
|
|
|
#ifndef ESC_e
|
|
#define ESC_e CHAR_ESC
|
|
#endif
|
|
|
|
#ifndef ESC_f
|
|
#define ESC_f CHAR_FF
|
|
#endif
|
|
|
|
#ifndef ESC_n
|
|
#define ESC_n CHAR_NL
|
|
#endif
|
|
|
|
#ifndef ESC_r
|
|
#define ESC_r CHAR_CR
|
|
#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 CHAR_HT
|
|
#endif
|
|
|
|
/* Codes for different types of Unicode property */
|
|
|
|
#define PT_ANY 0 /* Any property - matches all chars */
|
|
#define PT_LAMP 1 /* L& - the union of Lu, Ll, Lt */
|
|
#define PT_GC 2 /* General characteristic (e.g. L) */
|
|
#define PT_PC 3 /* Particular characteristic (e.g. Lu) */
|
|
#define PT_SC 4 /* Script (e.g. Han) */
|
|
|
|
/* 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 (2-byte property code follows) */
|
|
#define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
|
|
|
|
/* 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, and another for OP_ALLANY
|
|
(which is used for [^] in JavaScript compatibility mode).
|
|
|
|
The final escape must be 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_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
|
|
ESC_W, ESC_w, ESC_dum1, ESC_dum2, 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_g, ESC_k,
|
|
ESC_REF };
|
|
|
|
|
|
/* Opcode table: 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 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 */
|
|
|
|
/* Values corresponding to backslashed metacharacters */
|
|
|
|
OP_SOD, /* 1 Start of data: \A */
|
|
OP_SOM, /* 2 Start of match (subject + offset): \G */
|
|
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 (subject to DOTALL) */
|
|
OP_ALLANY, /* 13 Match any character (not subject to DOTALL) */
|
|
OP_ANYBYTE, /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
|
|
OP_NOTPROP, /* 15 \P (not Unicode property) */
|
|
OP_PROP, /* 16 \p (Unicode property) */
|
|
OP_ANYNL, /* 17 \R (any newline sequence) */
|
|
OP_NOT_HSPACE, /* 18 \H (not horizontal whitespace) */
|
|
OP_HSPACE, /* 19 \h (horizontal whitespace) */
|
|
OP_NOT_VSPACE, /* 20 \V (not vertical whitespace) */
|
|
OP_VSPACE, /* 21 \v (vertical whitespace) */
|
|
OP_EXTUNI, /* 22 \X (extended Unicode sequence */
|
|
OP_EODN, /* 23 End of data or \n at end of data: \Z. */
|
|
OP_EOD, /* 24 End of data: \z */
|
|
|
|
OP_OPT, /* 25 Set runtime options */
|
|
OP_CIRC, /* 26 Start of line - varies with multiline switch */
|
|
OP_DOLL, /* 27 End of line - varies with multiline switch */
|
|
OP_CHAR, /* 28 Match one character, casefully */
|
|
OP_CHARNC, /* 29 Match one character, caselessly */
|
|
OP_NOT, /* 30 Match one character, not the following one */
|
|
|
|
OP_STAR, /* 31 The maximizing and minimizing versions of */
|
|
OP_MINSTAR, /* 32 these six opcodes must come in pairs, with */
|
|
OP_PLUS, /* 33 the minimizing one second. */
|
|
OP_MINPLUS, /* 34 This first set applies to single characters.*/
|
|
OP_QUERY, /* 35 */
|
|
OP_MINQUERY, /* 36 */
|
|
|
|
OP_UPTO, /* 37 From 0 to n matches */
|
|
OP_MINUPTO, /* 38 */
|
|
OP_EXACT, /* 39 Exactly n matches */
|
|
|
|
OP_POSSTAR, /* 40 Possessified star */
|
|
OP_POSPLUS, /* 41 Possessified plus */
|
|
OP_POSQUERY, /* 42 Posesssified query */
|
|
OP_POSUPTO, /* 43 Possessified upto */
|
|
|
|
OP_NOTSTAR, /* 44 The maximizing and minimizing versions of */
|
|
OP_NOTMINSTAR, /* 45 these six opcodes must come in pairs, with */
|
|
OP_NOTPLUS, /* 46 the minimizing one second. They must be in */
|
|
OP_NOTMINPLUS, /* 47 exactly the same order as those above. */
|
|
OP_NOTQUERY, /* 48 This set applies to "not" single characters. */
|
|
OP_NOTMINQUERY, /* 49 */
|
|
|
|
OP_NOTUPTO, /* 50 From 0 to n matches */
|
|
OP_NOTMINUPTO, /* 51 */
|
|
OP_NOTEXACT, /* 52 Exactly n matches */
|
|
|
|
OP_NOTPOSSTAR, /* 53 Possessified versions */
|
|
OP_NOTPOSPLUS, /* 54 */
|
|
OP_NOTPOSQUERY, /* 55 */
|
|
OP_NOTPOSUPTO, /* 56 */
|
|
|
|
OP_TYPESTAR, /* 57 The maximizing and minimizing versions of */
|
|
OP_TYPEMINSTAR, /* 58 these six opcodes must come in pairs, with */
|
|
OP_TYPEPLUS, /* 59 the minimizing one second. These codes must */
|
|
OP_TYPEMINPLUS, /* 60 be in exactly the same order as those above. */
|
|
OP_TYPEQUERY, /* 61 This set applies to character types such as \d */
|
|
OP_TYPEMINQUERY, /* 62 */
|
|
|
|
OP_TYPEUPTO, /* 63 From 0 to n matches */
|
|
OP_TYPEMINUPTO, /* 64 */
|
|
OP_TYPEEXACT, /* 65 Exactly n matches */
|
|
|
|
OP_TYPEPOSSTAR, /* 66 Possessified versions */
|
|
OP_TYPEPOSPLUS, /* 67 */
|
|
OP_TYPEPOSQUERY, /* 68 */
|
|
OP_TYPEPOSUPTO, /* 69 */
|
|
|
|
OP_CRSTAR, /* 70 The maximizing and minimizing versions of */
|
|
OP_CRMINSTAR, /* 71 all these opcodes must come in pairs, with */
|
|
OP_CRPLUS, /* 72 the minimizing one second. These codes must */
|
|
OP_CRMINPLUS, /* 73 be in exactly the same order as those above. */
|
|
OP_CRQUERY, /* 74 These are for character classes and back refs */
|
|
OP_CRMINQUERY, /* 75 */
|
|
OP_CRRANGE, /* 76 These are different to the three sets above. */
|
|
OP_CRMINRANGE, /* 77 */
|
|
|
|
OP_CLASS, /* 78 Match a character class, chars < 256 only */
|
|
OP_NCLASS, /* 79 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, /* 80 Extended class for handling UTF-8 chars within the
|
|
class. This does both positive and negative. */
|
|
|
|
OP_REF, /* 81 Match a back reference */
|
|
OP_RECURSE, /* 82 Match a numbered subpattern (possibly recursive) */
|
|
OP_CALLOUT, /* 83 Call out to external function if provided */
|
|
|
|
OP_ALT, /* 84 Start of alternation */
|
|
OP_KET, /* 85 End of group that doesn't have an unbounded repeat */
|
|
OP_KETRMAX, /* 86 These two must remain together and in this */
|
|
OP_KETRMIN, /* 87 order. They are for groups the repeat for ever. */
|
|
|
|
/* The assertions must come before BRA, CBRA, ONCE, and COND.*/
|
|
|
|
OP_ASSERT, /* 88 Positive lookahead */
|
|
OP_ASSERT_NOT, /* 89 Negative lookahead */
|
|
OP_ASSERTBACK, /* 90 Positive lookbehind */
|
|
OP_ASSERTBACK_NOT, /* 91 Negative lookbehind */
|
|
OP_REVERSE, /* 92 Move pointer back - used in lookbehind assertions */
|
|
|
|
/* 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, /* 93 Atomic group */
|
|
OP_BRA, /* 94 Start of non-capturing bracket */
|
|
OP_CBRA, /* 95 Start of capturing bracket */
|
|
OP_COND, /* 96 Conditional group */
|
|
|
|
/* These three must follow the previous three, in the same order. There's a
|
|
check for >= SBRA to distinguish the two sets. */
|
|
|
|
OP_SBRA, /* 97 Start of non-capturing bracket, check empty */
|
|
OP_SCBRA, /* 98 Start of capturing bracket, check empty */
|
|
OP_SCOND, /* 99 Conditional group, check empty */
|
|
|
|
OP_CREF, /* 100 Used to hold a capture number as condition */
|
|
OP_RREF, /* 101 Used to hold a recursion number as condition */
|
|
OP_DEF, /* 102 The DEFINE condition */
|
|
|
|
OP_BRAZERO, /* 103 These two must remain together and in this */
|
|
OP_BRAMINZERO, /* 104 order. */
|
|
|
|
/* These are backtracking control verbs */
|
|
|
|
OP_PRUNE, /* 105 */
|
|
OP_SKIP, /* 106 */
|
|
OP_THEN, /* 107 */
|
|
OP_COMMIT, /* 108 */
|
|
|
|
/* These are forced failure and success verbs */
|
|
|
|
OP_FAIL, /* 109 */
|
|
OP_ACCEPT, /* 110 */
|
|
|
|
/* This is used to skip a subpattern with a {0} quantifier */
|
|
|
|
OP_SKIPZERO /* 111 */
|
|
};
|
|
|
|
|
|
/* 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", "\\K", "\\B", "\\b", "\\D", "\\d", \
|
|
"\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte", \
|
|
"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", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond", \
|
|
"Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero", \
|
|
"*PRUNE", "*SKIP", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT", \
|
|
"Skip zero"
|
|
|
|
|
|
/* 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
|
|
defined close to the definitions of the opcodes themselves.
|
|
|
|
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, /* \A, \G, \K, \B, \b */ \
|
|
1, 1, 1, 1, 1, 1, /* \D, \d, \S, \s, \W, \w */ \
|
|
1, 1, 1, /* Any, AllAny, 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 */ \
|
|
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 */ \
|
|
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 */ \
|
|
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, /* 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 */ \
|
|
1, 1, 1, 1, /* PRUNE, SKIP, THEN, COMMIT, */ \
|
|
1, 1, 1 /* FAIL, ACCEPT, SKIPZERO */
|
|
|
|
|
|
/* A magic value for OP_RREF to indicate the "any recursion" condition. */
|
|
|
|
#define RREF_ANY 0xffff
|
|
|
|
/* Error code numbers. They are given names so that they can more easily be
|
|
tracked. */
|
|
|
|
enum { ERR0, ERR1, ERR2, ERR3, ERR4, ERR5, ERR6, ERR7, ERR8, ERR9,
|
|
ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
|
|
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, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
|
|
ERR60, ERR61, ERR62, ERR63, ERR64 };
|
|
|
|
/* 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, a few dummy fields were
|
|
originally included - even though you can never get this planning right - but
|
|
there is only one left now.
|
|
|
|
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; /* Public options */
|
|
pcre_uint16 flags; /* Private flags */
|
|
pcre_uint16 dummy1; /* For future use */
|
|
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 ref_count; /* Reference count */
|
|
|
|
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_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 as we compile */
|
|
int final_bracount; /* Saved value after first pass */
|
|
int top_backref; /* Maximum back reference */
|
|
unsigned int backref_map; /* Bitmap of low back refs */
|
|
int external_options; /* External (initial) options */
|
|
int external_flags; /* External flag bits to be set */
|
|
int req_varyopt; /* "After variable item" flag for reqbyte */
|
|
BOOL had_accept; /* (*ACCEPT) encountered */
|
|
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
|
|
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 */
|
|
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;
|
|
|
|
/* 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;
|
|
|
|
|
|
/* 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_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 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 */
|
|
BOOL notbol; /* NOTBOL flag */
|
|
BOOL noteol; /* NOTEOL flag */
|
|
BOOL utf8; /* UTF8 flag */
|
|
BOOL jscript_compat; /* JAVASCRIPT_COMPAT 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 */
|
|
BOOL bsr_anycrlf; /* \R is just any CRLF, not full Unicode */
|
|
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_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 */
|
|
} match_data;
|
|
|
|
/* A similar structure is used for the same purpose by the DFA matching
|
|
functions. */
|
|
|
|
typedef struct dfa_match_data {
|
|
const uschar *start_code; /* Start of the compiled pattern */
|
|
const uschar *start_subject; /* Start of the subject string */
|
|
const uschar *end_subject; /* End of subject string */
|
|
const uschar *tables; /* Character tables */
|
|
int moptions; /* Match options */
|
|
int poptions; /* Pattern options */
|
|
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;
|
|
|
|
/* 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 /* alphanumeric 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)
|
|
|
|
/* Layout of the UCP type table that translates property names into types and
|
|
codes. Each entry used to point directly to a name, but to reduce the number of
|
|
relocations in shared libraries, it now has an offset into a single string
|
|
instead. */
|
|
|
|
typedef struct {
|
|
pcre_uint16 name_offset;
|
|
pcre_uint16 type;
|
|
pcre_uint16 value;
|
|
} ucp_type_table;
|
|
|
|
|
|
/* Internal shared data tables. These are tables that are used by more than one
|
|
of the exported public functions. They have to be "external" in the C sense,
|
|
but are not part of the PCRE public API. The data for these tables is in the
|
|
pcre_tables.c module. */
|
|
|
|
extern const int _pcre_utf8_table1[];
|
|
extern const int _pcre_utf8_table2[];
|
|
extern const int _pcre_utf8_table3[];
|
|
extern const uschar _pcre_utf8_table4[];
|
|
|
|
extern const int _pcre_utf8_table1_size;
|
|
|
|
extern const char _pcre_utt_names[];
|
|
extern const ucp_type_table _pcre_utt[];
|
|
extern const int _pcre_utt_size;
|
|
|
|
extern const uschar _pcre_default_tables[];
|
|
|
|
extern const uschar _pcre_OP_lengths[];
|
|
|
|
|
|
/* Internal shared functions. These are functions that are used by more than
|
|
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 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_valid_utf8(const uschar *, int);
|
|
extern BOOL _pcre_was_newline(const uschar *, int, const uschar *,
|
|
int *, BOOL);
|
|
extern BOOL _pcre_xclass(int, const uschar *);
|
|
|
|
|
|
/* Unicode character database (UCD) */
|
|
|
|
typedef struct {
|
|
uschar script;
|
|
uschar chartype;
|
|
pcre_int32 other_case;
|
|
} ucd_record;
|
|
|
|
extern const ucd_record _pcre_ucd_records[];
|
|
extern const uschar _pcre_ucd_stage1[];
|
|
extern const pcre_uint16 _pcre_ucd_stage2[];
|
|
extern const int _pcre_ucp_gentype[];
|
|
|
|
|
|
/* UCD access macros */
|
|
|
|
#define UCD_BLOCK_SIZE 128
|
|
#define GET_UCD(ch) (_pcre_ucd_records + \
|
|
_pcre_ucd_stage2[_pcre_ucd_stage1[(ch) / UCD_BLOCK_SIZE] * \
|
|
UCD_BLOCK_SIZE + ch % UCD_BLOCK_SIZE])
|
|
|
|
#define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
|
|
#define UCD_SCRIPT(ch) GET_UCD(ch)->script
|
|
#define UCD_CATEGORY(ch) _pcre_ucp_gentype[UCD_CHARTYPE(ch)]
|
|
#define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)
|
|
|
|
#endif
|
|
|
|
/* End of pcre_internal.h */
|