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Diffstat (limited to 'ext/pcre/pcrelib/internal.h')
| -rw-r--r-- | ext/pcre/pcrelib/internal.h | 380 |
1 files changed, 0 insertions, 380 deletions
diff --git a/ext/pcre/pcrelib/internal.h b/ext/pcre/pcrelib/internal.h deleted file mode 100644 index 62962e387d..0000000000 --- a/ext/pcre/pcrelib/internal.h +++ /dev/null @@ -1,380 +0,0 @@ -/************************************************* -* Perl-Compatible Regular Expressions * -*************************************************/ - - -/* This 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. See -the file Tech.Notes for some information on the internals. - -Written by: Philip Hazel <ph10@cam.ac.uk> - - Copyright (c) 1997-2000 University of Cambridge - ------------------------------------------------------------------------------ -Permission is granted to anyone to use this software for any purpose on any -computer system, and to redistribute it freely, subject to the following -restrictions: - -1. This software is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -2. The origin of this software must not be misrepresented, either by - explicit claim or by omission. - -3. Altered versions must be plainly marked as such, and must not be - misrepresented as being the original software. - -4. If PCRE is embedded in any software that is released under the GNU - General Purpose Licence (GPL), then the terms of that licence shall - supersede any condition above with which it is incompatible. ------------------------------------------------------------------------------ -*/ - -/* This header contains definitions that are shared between the different -modules, but which are not relevant to the outside. */ - -/* Get the definitions provided by running "configure" */ - -#ifdef PHP_WIN32 -#include "config.w32.h" -#else -#include "php_config.h" -#endif - -/* To cope with SunOS4 and other systems that lack memmove() but have bcopy(), -define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY -is set. Otherwise, include an emulating function for those systems that have -neither (there some non-Unix environments where this is the case). This assumes -that all calls to memmove are moving strings upwards in store, which is the -case in PCRE. */ - -#if ! HAVE_MEMMOVE -#undef memmove /* some systems may have a macro */ -#if HAVE_BCOPY -#define memmove(a, b, c) bcopy(b, a, c) -#else -void * -pcre_memmove(unsigned char *dest, const unsigned char *src, size_t n) -{ -int i; -dest += n; -src += n; -for (i = 0; i < n; ++i) *(--dest) = *(--src); -} -#define memmove(a, b, c) pcre_memmove(a, b, c) -#endif -#endif - -/* Standard C headers plus the external interface definition */ - -#include <ctype.h> -#include <limits.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "pcre.h" - -/* 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 options flags start at the most significant end of the four bytes, -but skip the top bit so we can use ints for convenience without getting tangled -with negative values. The public options defined in pcre.h start at the least -significant end. Make sure they don't overlap, though now that we have expanded -to four bytes there is plenty of space. */ - -#define PCRE_FIRSTSET 0x40000000 /* first_char is set */ -#define PCRE_REQCHSET 0x20000000 /* req_char is set */ -#define PCRE_STARTLINE 0x10000000 /* start after \n for multiline */ -#define PCRE_INGROUP 0x08000000 /* compiling inside a group */ -#define PCRE_ICHANGED 0x04000000 /* i option changes within regex */ - -/* 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 which are permitted at compile -time, run time or study time, respectively. */ - -#define PUBLIC_OPTIONS \ - (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \ - PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY) - -#define PUBLIC_EXEC_OPTIONS \ - (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY) - -#define PUBLIC_STUDY_OPTIONS 0 /* None defined */ - -/* Magic number to provide a small check against being handed junk. */ - -#define MAGIC_NUMBER 0x50435245UL /* 'PCRE' */ - -/* Miscellaneous definitions */ - -typedef int BOOL; - -#define FALSE 0 -#define TRUE 1 - -/* 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. The final one must be ESC_REF as subsequent -values are used for \1, \2, \3, etc. There is a test in the code for an escape -greater than ESC_b and less than ESC_X to detect the types that may be -repeated. 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_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s, ESC_W, ESC_w, - ESC_Z, ESC_z, ESC_REF }; - -/* Opcode table: OP_BRA must be last, as all values >= it are used for brackets -that extract substrings. Starting from 1 (i.e. after OP_END), the values up to -OP_EOD must correspond in order to the list of escapes immediately above. */ - -enum { - OP_END, /* End of pattern */ - - /* Values corresponding to backslashed metacharacters */ - - OP_SOD, /* Start of data: \A */ - OP_NOT_WORD_BOUNDARY, /* \B */ - OP_WORD_BOUNDARY, /* \b */ - OP_NOT_DIGIT, /* \D */ - OP_DIGIT, /* \d */ - OP_NOT_WHITESPACE, /* \S */ - OP_WHITESPACE, /* \s */ - OP_NOT_WORDCHAR, /* \W */ - OP_WORDCHAR, /* \w */ - OP_EODN, /* End of data or \n at end of data: \Z. */ - OP_EOD, /* End of data: \z */ - - OP_OPT, /* Set runtime options */ - OP_CIRC, /* Start of line - varies with multiline switch */ - OP_DOLL, /* End of line - varies with multiline switch */ - OP_ANY, /* Match any character */ - OP_CHARS, /* Match string of characters */ - OP_NOT, /* Match anything but the following char */ - - OP_STAR, /* The maximizing and minimizing versions of */ - OP_MINSTAR, /* all these opcodes must come in pairs, with */ - OP_PLUS, /* the minimizing one second. */ - OP_MINPLUS, /* This first set applies to single characters */ - OP_QUERY, - OP_MINQUERY, - OP_UPTO, /* From 0 to n matches */ - OP_MINUPTO, - OP_EXACT, /* Exactly n matches */ - - OP_NOTSTAR, /* The maximizing and minimizing versions of */ - OP_NOTMINSTAR, /* all these opcodes must come in pairs, with */ - OP_NOTPLUS, /* the minimizing one second. */ - OP_NOTMINPLUS, /* This first set applies to "not" single characters */ - OP_NOTQUERY, - OP_NOTMINQUERY, - OP_NOTUPTO, /* From 0 to n matches */ - OP_NOTMINUPTO, - OP_NOTEXACT, /* Exactly n matches */ - - OP_TYPESTAR, /* The maximizing and minimizing versions of */ - OP_TYPEMINSTAR, /* all these opcodes must come in pairs, with */ - OP_TYPEPLUS, /* the minimizing one second. These codes must */ - OP_TYPEMINPLUS, /* be in exactly the same order as those above. */ - OP_TYPEQUERY, /* This set applies to character types such as \d */ - OP_TYPEMINQUERY, - OP_TYPEUPTO, /* From 0 to n matches */ - OP_TYPEMINUPTO, - OP_TYPEEXACT, /* Exactly n matches */ - - OP_CRSTAR, /* The maximizing and minimizing versions of */ - OP_CRMINSTAR, /* all these opcodes must come in pairs, with */ - OP_CRPLUS, /* the minimizing one second. These codes must */ - OP_CRMINPLUS, /* be in exactly the same order as those above. */ - OP_CRQUERY, /* These are for character classes and back refs */ - OP_CRMINQUERY, - OP_CRRANGE, /* These are different to the three seta above. */ - OP_CRMINRANGE, - - OP_CLASS, /* Match a character class */ - OP_REF, /* Match a back reference */ - OP_RECURSE, /* Match this pattern recursively */ - - OP_ALT, /* Start of alternation */ - OP_KET, /* End of group that doesn't have an unbounded repeat */ - OP_KETRMAX, /* These two must remain together and in this */ - OP_KETRMIN, /* order. They are for groups the repeat for ever. */ - - /* The assertions must come before ONCE and COND */ - - OP_ASSERT, /* Positive lookahead */ - OP_ASSERT_NOT, /* Negative lookahead */ - OP_ASSERTBACK, /* Positive lookbehind */ - OP_ASSERTBACK_NOT, /* Negative lookbehind */ - OP_REVERSE, /* Move pointer back - used in lookbehind assertions */ - - /* ONCE and COND must come after the assertions, with ONCE first, as there's - a test for >= ONCE for a subpattern that isn't an assertion. */ - - OP_ONCE, /* Once matched, don't back up into the subpattern */ - OP_COND, /* Conditional group */ - OP_CREF, /* Used to hold an extraction string number */ - - OP_BRAZERO, /* These two must remain together and in this */ - OP_BRAMINZERO, /* order. */ - - OP_BRA /* This and greater values are used for brackets that - extract substrings. */ -}; - -/* The highest extraction number. This is limited by the number of opcodes -left after OP_BRA, i.e. 255 - OP_BRA. We actually set it somewhat lower. */ - -#define EXTRACT_MAX 99 - -/* The texts of compile-time error messages are defined as macros here so that -they can be accessed by the POSIX wrapper and converted into error codes. Yes, -I could have used error codes in the first place, but didn't feel like changing -just to accommodate the POSIX wrapper. */ - -#define ERR1 "\\ at end of pattern" -#define ERR2 "\\c at end of pattern" -#define ERR3 "unrecognized character follows \\" -#define ERR4 "numbers out of order in {} quantifier" -#define ERR5 "number too big in {} quantifier" -#define ERR6 "missing terminating ] for character class" -#define ERR7 "invalid escape sequence in character class" -#define ERR8 "range out of order in character class" -#define ERR9 "nothing to repeat" -#define ERR10 "operand of unlimited repeat could match the empty string" -#define ERR11 "internal error: unexpected repeat" -#define ERR12 "unrecognized character after (?" -#define ERR13 "too many capturing parenthesized sub-patterns" -#define ERR14 "missing )" -#define ERR15 "back reference to non-existent subpattern" -#define ERR16 "erroffset passed as NULL" -#define ERR17 "unknown option bit(s) set" -#define ERR18 "missing ) after comment" -#define ERR19 "too many sets of parentheses" -#define ERR20 "regular expression too large" -#define ERR21 "failed to get memory" -#define ERR22 "unmatched parentheses" -#define ERR23 "internal error: code overflow" -#define ERR24 "unrecognized character after (?<" -#define ERR25 "lookbehind assertion is not fixed length" -#define ERR26 "malformed number after (?(" -#define ERR27 "conditional group contains more than two branches" -#define ERR28 "assertion expected after (?(" -#define ERR29 "(?p must be followed by )" -#define ERR30 "unknown POSIX class name" -#define ERR31 "POSIX collating elements are not supported" - -/* 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; - -/* The real format of the start of the pcre block; the actual code vector -runs on as long as necessary after the end. */ - -typedef struct real_pcre { - unsigned long int magic_number; - size_t size; - const unsigned char *tables; - unsigned long int options; - uschar top_bracket; - uschar top_backref; - uschar first_char; - uschar req_char; - uschar code[1]; -} real_pcre; - -/* The real format of the extra block returned by pcre_study(). */ - -typedef struct real_pcre_extra { - uschar options; - uschar start_bits[32]; -} real_pcre_extra; - - -/* 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 */ -} compile_data; - -/* Structure for passing "static" information around between the functions -doing the matching, so that they are thread-safe. */ - -typedef struct match_data { - int errorcode; /* As it says */ - int *offset_vector; /* Offset vector */ - int offset_end; /* One past the end */ - int offset_max; /* The maximum usable for return data */ - 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 endonly; /* Dollar not before final \n */ - BOOL notempty; /* Empty string match not wanted */ - const uschar *start_pattern; /* For use when recursing */ - const uschar *start_subject; /* Start of the subject string */ - const uschar *end_subject; /* End of the subject string */ - const uschar *start_match; /* Start of this match attempt */ - const uschar *end_match_ptr; /* Subject position at end match */ - int end_offset_top; /* Highwater mark at end of match */ -} 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 /* alphameric 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) - -/* End of internal.h */ |