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pcre2: Sync with upstream 10.32

This commit is contained in:
Rémi Verschelde
2019-03-04 14:25:49 +01:00
parent 2bc981948d
commit 0455bc64b6
37 changed files with 4929 additions and 4094 deletions

View File

@@ -7,7 +7,7 @@ and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2017 University of Cambridge
New API code Copyright (c) 2016-2018 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@@ -165,6 +165,16 @@ by "configure". */
#define INT64_OR_DOUBLE double
#endif
/* External (in the C sense) functions and tables that are private to the
libraries are always referenced using the PRIV macro. This makes it possible
for pcre2test.c to include some of the source files from the libraries using a
different PRIV definition to avoid name clashes. It also makes it clear in the
code that a non-static object is being referenced. */
#ifndef PRIV
#define PRIV(name) _pcre2_##name
#endif
/* When compiling for use with the Virtual Pascal compiler, these functions
need to have their names changed. PCRE2 must be compiled with the -DVPCOMPAT
option on the command line. */
@@ -178,50 +188,15 @@ option on the command line. */
#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). */
/* Otherwise, to cope with SunOS4 and other systems that lack memmove(), define
a macro that calls an emulating function. */
#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 *
pcre2_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) pcre2_memmove(a, b, c)
#endif /* not HAVE_BCOPY */
#undef memmove /* Some systems may have a macro */
#define memmove(a, b, c) PRIV(memmove)(a, b, c)
#endif /* not HAVE_MEMMOVE */
#endif /* not VPCOMPAT */
/* External (in the C sense) functions and tables that are private to the
libraries are always referenced using the PRIV macro. This makes it possible
for pcre2test.c to include some of the source files from the libraries using a
different PRIV definition to avoid name clashes. It also makes it clear in the
code that a non-static object is being referenced. */
#ifndef PRIV
#define PRIV(name) _pcre2_##name
#endif
/* This is an unsigned int value that no UTF character can ever have, as
Unicode doesn't go beyond 0x0010ffff. */
@@ -247,12 +222,17 @@ not rely on this. */
pcre2_match() is allocated on the system stack, of this size (bytes). The size
must be a multiple of sizeof(PCRE2_SPTR) in all environments, so making it a
multiple of 8 is best. Typical frame sizes are a few hundred bytes (it depends
on the number of capturing parentheses) so 20K handles quite a few frames. A
on the number of capturing parentheses) so 20KiB handles quite a few frames. A
larger vector on the heap is obtained for patterns that need more frames. The
maximum size of this can be limited. */
#define START_FRAMES_SIZE 20480
/* Similarly, for DFA matching, an initial internal workspace vector is
allocated on the stack. */
#define DFA_START_RWS_SIZE 30720
/* Define the default BSR convention. */
#ifdef BSR_ANYCRLF
@@ -585,14 +565,15 @@ these tables. */
#define cbit_cntrl 288 /* [:cntrl:] */
#define cbit_length 320 /* Length of the cbits table */
/* Bit definitions for entries in the ctypes table. */
/* Bit definitions for entries in the ctypes table. Do not change these values
without checking pcre2_jit_compile.c, which has an assertion to ensure that
ctype_word has the value 16. */
#define ctype_space 0x01
#define ctype_letter 0x02
#define ctype_digit 0x04
#define ctype_xdigit 0x08
#define ctype_xdigit 0x08 /* not actually used any more */
#define ctype_word 0x10 /* alphanumeric or '_' */
#define ctype_meta 0x80 /* regexp meta char or zero (end pattern) */
/* Offsets of the various tables from the base tables pointer, and
total length of the tables. */
@@ -1267,36 +1248,6 @@ contain characters with values greater than 255. */
#define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
#define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
/* Escape items that are just an encoding of a particular data value. These
appear in the escapes[] table in pcre2_compile.c as positive numbers. */
#ifndef ESC_a
#define ESC_a CHAR_BEL
#endif
#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_LF
#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
/* 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 0
for a data character. In the escapes[] table in pcre2_compile.c their values
@@ -1578,23 +1529,26 @@ enum {
OP_THEN, /* 155 */
OP_THEN_ARG, /* 156 same, but with argument */
OP_COMMIT, /* 157 */
OP_COMMIT_ARG, /* 158 same, but with argument */
/* These are forced failure and success verbs */
/* These are forced failure and success verbs. FAIL and ACCEPT do accept an
argument, but these cases can be compiled as, for example, (*MARK:X)(*FAIL)
without the need for a special opcode. */
OP_FAIL, /* 158 */
OP_ACCEPT, /* 159 */
OP_ASSERT_ACCEPT, /* 160 Used inside assertions */
OP_CLOSE, /* 161 Used before OP_ACCEPT to close open captures */
OP_FAIL, /* 159 */
OP_ACCEPT, /* 160 */
OP_ASSERT_ACCEPT, /* 161 Used inside assertions */
OP_CLOSE, /* 162 Used before OP_ACCEPT to close open captures */
/* This is used to skip a subpattern with a {0} quantifier */
OP_SKIPZERO, /* 162 */
OP_SKIPZERO, /* 163 */
/* This is used to identify a DEFINE group during compilation so that it can
be checked for having only one branch. It is changed to OP_FALSE before
compilation finishes. */
OP_DEFINE, /* 163 */
OP_DEFINE, /* 164 */
/* This is not an opcode, but is used to check that tables indexed by opcode
are the correct length, in order to catch updating errors - there have been
@@ -1650,7 +1604,7 @@ some cases doesn't actually use these names at all). */
"Cond false", "Cond true", \
"Brazero", "Braminzero", "Braposzero", \
"*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP", \
"*THEN", "*THEN", "*COMMIT", "*FAIL", \
"*THEN", "*THEN", "*COMMIT", "*COMMIT", "*FAIL", \
"*ACCEPT", "*ASSERT_ACCEPT", \
"Close", "Skip zero", "Define"
@@ -1742,7 +1696,8 @@ in UTF-8 mode. The code that uses this table must know about such things. */
3, 1, 3, /* MARK, PRUNE, PRUNE_ARG */ \
1, 3, /* SKIP, SKIP_ARG */ \
1, 3, /* THEN, THEN_ARG */ \
1, 1, 1, 1, /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT */ \
1, 3, /* COMMIT, COMMIT_ARG */ \
1, 1, 1, /* FAIL, ACCEPT, ASSERT_ACCEPT */ \
1+IMM2_SIZE, 1, /* CLOSE, SKIPZERO */ \
1 /* DEFINE */
@@ -1896,7 +1851,7 @@ extern const ucd_record PRIV(ucd_records)[];
#if PCRE2_CODE_UNIT_WIDTH == 32
extern const ucd_record PRIV(dummy_ucd_record)[];
#endif
extern const uint8_t PRIV(ucd_stage1)[];
extern const uint16_t PRIV(ucd_stage1)[];
extern const uint16_t PRIV(ucd_stage2)[];
extern const uint32_t PRIV(ucp_gbtable)[];
extern const uint32_t PRIV(ucp_gentype)[];
@@ -1976,6 +1931,14 @@ extern int _pcre2_valid_utf(PCRE2_SPTR, PCRE2_SIZE, PCRE2_SIZE *);
extern BOOL _pcre2_was_newline(PCRE2_SPTR, uint32_t, PCRE2_SPTR,
uint32_t *, BOOL);
extern BOOL _pcre2_xclass(uint32_t, PCRE2_SPTR, BOOL);
/* This function is needed only when memmove() is not available. */
#if !defined(VPCOMPAT) && !defined(HAVE_MEMMOVE)
#define _pcre2_memmove PCRE2_SUFFIX(_pcre2_memmove)
extern void * _pcre2_memmove(void *, const void *, size_t);
#endif
#endif /* PCRE2_CODE_UNIT_WIDTH */
#endif /* PCRE2_INTERNAL_H_IDEMPOTENT_GUARD */