walkero
/
pcre2
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity

Update comments and correct name of memmove substitute function.

This commit is contained in:
Philip.Hazel 2016-07-27 17:58:38 +00:00
parent 41ebeb4290
commit 36f06405b7
1 changed files with 33 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
src/pcre2_internal.h
View File

@ -2,7 +2,7 @@
* Perl-Compatible Regular Expressions * * Perl-Compatible Regular Expressions *
*************************************************/ *************************************************/
/* PCRE is a library of functions to support regular expressions whose syntax /* PCRE2 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. and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel Written by Philip Hazel
@ -177,7 +177,7 @@ by "configure". */
#endif #endif
/* When compiling for use with the Virtual Pascal compiler, these functions /* When compiling for use with the Virtual Pascal compiler, these functions
need to have their names changed. PCRE must be compiled with the -DVPCOMPAT need to have their names changed. PCRE2 must be compiled with the -DVPCOMPAT
option on the command line. */ option on the command line. */
#ifdef VPCOMPAT #ifdef VPCOMPAT
@ -200,7 +200,7 @@ neither (there some non-Unix environments where this is the case). */
#define memmove(a, b, c) bcopy(b, a, c) #define memmove(a, b, c) bcopy(b, a, c)
#else /* HAVE_BCOPY */ #else /* HAVE_BCOPY */
static void * static void *
pcre_memmove(void *d, const void *s, size_t n) pcre2_memmove(void *d, const void *s, size_t n)
{ {
size_t i; size_t i;
unsigned char *dest = (unsigned char *)d; unsigned char *dest = (unsigned char *)d;
@ -218,7 +218,7 @@ else
return (void *)(dest - n); return (void *)(dest - n);
} }
} }
#define memmove(a, b, c) pcre_memmove(a, b, c) #define memmove(a, b, c) pcre2_memmove(a, b, c)
#endif /* not HAVE_BCOPY */ #endif /* not HAVE_BCOPY */
#endif /* not HAVE_MEMMOVE */ #endif /* not HAVE_MEMMOVE */
#endif /* not VPCOMPAT */ #endif /* not VPCOMPAT */
@ -397,7 +397,7 @@ other. NOTE: The values also appear in pcre2_jit_compile.c. */
/* Character U+180E (Mongolian Vowel Separator) is not included in the list of /* Character U+180E (Mongolian Vowel Separator) is not included in the list of
spaces in the Unicode file PropList.txt, and Perl does not recognize it as a spaces in the Unicode file PropList.txt, and Perl does not recognize it as a
space. However, in many other sources it is listed as a space and has been in space. However, in many other sources it is listed as a space and has been in
PCRE for a long time. */ PCRE (both APIs) for a long time. */
#define HSPACE_LIST \ #define HSPACE_LIST \
CHAR_HT, CHAR_SPACE, CHAR_NBSP, \ CHAR_HT, CHAR_SPACE, CHAR_NBSP, \
@ -565,17 +565,9 @@ req_unit match. */
#define REQ_CU_MAX 1000 #define REQ_CU_MAX 1000
/* Bit definitions for entries in the pcre_ctypes table. */ /* Offsets for the bitmap tables in the cbits set of tables. Each table
contains a set of bits for a class map. Some classes are built by combining
#define ctype_space 0x01 these tables. */
#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_space 0 /* [:space:] or \s */
#define cbit_xdigit 32 /* [:xdigit:] */ #define cbit_xdigit 32 /* [:xdigit:] */
@ -589,19 +581,28 @@ of bits for a class map. Some classes are built by combining these tables. */
#define cbit_cntrl 288 /* [:cntrl:] */ #define cbit_cntrl 288 /* [:cntrl:] */
#define cbit_length 320 /* Length of the cbits table */ #define cbit_length 320 /* Length of the cbits table */
/* Offsets of the various tables from the base tables pointer, and /* Bit definitions for entries in the ctypes table. */
total length. */
#define lcc_offset 0 #define ctype_space 0x01
#define fcc_offset 256 #define ctype_letter 0x02
#define cbits_offset 512 #define ctype_digit 0x04
#define ctypes_offset (cbits_offset + cbit_length) #define ctype_xdigit 0x08
#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. */
#define lcc_offset 0 /* Lower case */
#define fcc_offset 256 /* Flip case */
#define cbits_offset 512 /* Character classes */
#define ctypes_offset (cbits_offset + cbit_length) /* Character types */
#define tables_length (ctypes_offset + 256) #define tables_length (ctypes_offset + 256)
/* -------------------- Character and string names ------------------------ */ /* -------------------- Character and string names ------------------------ */
/* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal /* If PCRE2 is to support UTF-8 on EBCDIC platforms, we cannot use normal
character constants like '*' because the compiler would emit their EBCDIC code, 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 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 the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
@ -609,7 +610,7 @@ 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 literals. Both character and string versions of each character are needed, and
there are some longer strings as well. there are some longer strings as well.
This means that, on EBCDIC platforms, the PCRE library can handle either This means that, on EBCDIC platforms, the PCRE2 library can handle either
EBCDIC, or UTF-8, but not both. To support both in the same compiled library EBCDIC, or UTF-8, but not both. To support both in the same compiled library
would need different lookups depending on whether PCRE2_UTF was set or not. would need different lookups depending on whether PCRE2_UTF was set or not.
This would make it impossible to use characters in switch/case statements, This would make it impossible to use characters in switch/case statements,
@ -621,7 +622,7 @@ macros to give the functions distinct names. */
#ifndef SUPPORT_UNICODE #ifndef SUPPORT_UNICODE
/* UTF-8 support is not enabled; use the platform-dependent character literals /* UTF-8 support is not enabled; use the platform-dependent character literals
so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF so that PCRE2 works in both ASCII and EBCDIC environments, but only in non-UTF
mode. Newline characters are problematic in EBCDIC. Though it has CR and LF mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
characters, a common practice has been to use its NL (0x15) character as the characters, a common practice has been to use its NL (0x15) character as the
line terminator in C-like processing environments. However, sometimes the LF line terminator in C-like processing environments. However, sometimes the LF
@ -629,7 +630,7 @@ line terminator in C-like processing environments. However, sometimes the LF
http://unicode.org/standard/reports/tr13/tr13-5.html http://unicode.org/standard/reports/tr13/tr13-5.html
PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25 PCRE2 defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
instead. Whichever is *not* chosen is defined as NEL. instead. Whichever is *not* chosen is defined as NEL.
In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
@ -1234,7 +1235,7 @@ only. */
#define PT_TABSIZE 11 /* Size of square table for autopossessify tests */ #define PT_TABSIZE 11 /* Size of square table for autopossessify tests */
/* The following special properties are used only in XCLASS items, when POSIX /* The following special properties are used only in XCLASS items, when POSIX
classes are specified and PCRE_UCP is set - in other words, for Unicode classes are specified and PCRE2_UCP is set - in other words, for Unicode
handling of these classes. They are not available via the \p or \P escapes like handling of these classes. They are not available via the \p or \P escapes like
those in the above list, and so they do not take part in the autopossessifying those in the above list, and so they do not take part in the autopossessifying
table. */ table. */
@ -1298,7 +1299,7 @@ compatibility mode, and for \C in non-utf mode. In non-DOTALL mode, "." behaves
like \N. like \N.
The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc. The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
when PCRE_UCP is set and replacement of \d etc by \p sequences is required. when PCRE2_UCP is set and replacement of \d etc by \p sequences is required.
They must be contiguous, and remain in order so that the replacements can be They must be contiguous, and remain in order so that the replacements can be
looked up from a table. looked up from a table.
@ -1323,12 +1324,12 @@ enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
Starting from 1 (i.e. after OP_END), the values up to OP_EOD must correspond in 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. Furthermore, values up to order to the list of escapes immediately above. Furthermore, values up to
OP_DOLLM must not be changed without adjusting the table called autoposstab in OP_DOLLM must not be changed without adjusting the table called autoposstab in
pcre_compile.c pcre2_auto_possess.c
Whenever this list is updated, the two macro definitions that follow must be Whenever this list is updated, the two macro definitions that follow must be
updated to match. The possessification table called "opcode_possessify" in updated to match. The possessification table called "opcode_possessify" in
pcre_compile.c must also be updated, and also the tables called "coptable" pcre2_compile.c must also be updated, and also the tables called "coptable"
and "poptable" in pcre_dfa_exec.c. and "poptable" in pcre2_dfa_match.c.
****** NOTE NOTE NOTE ******/ ****** NOTE NOTE NOTE ******/
@ -1905,7 +1906,7 @@ private structures. */
/* Private "external" functions. These are internal functions that are called /* Private "external" functions. These are internal functions that are called
from modules other than the one in which they are defined. They have to be from modules other than the one in which they are defined. They have to be
"external" in the C sense, but are not part of the PCRE public API. They are "external" in the C sense, but are not part of the PCRE2 public API. They are
not referenced from pcre2test, and must not be defined when no code unit width not referenced from pcre2test, and must not be defined when no code unit width
is available. */ is available. */