diff options
Diffstat (limited to 'thirdparty/pcre2/src/pcre2_internal.h')
| -rw-r--r-- | thirdparty/pcre2/src/pcre2_internal.h | 131 |
1 files changed, 47 insertions, 84 deletions
diff --git a/thirdparty/pcre2/src/pcre2_internal.h b/thirdparty/pcre2/src/pcre2_internal.h index 3db9d604f4..8750f2f174 100644 --- a/thirdparty/pcre2/src/pcre2_internal.h +++ b/thirdparty/pcre2/src/pcre2_internal.h @@ -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 */ |