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Diffstat (limited to 'cross/lib/regex.h')
| -rw-r--r-- | cross/lib/regex.h | 699 |
1 files changed, 0 insertions, 699 deletions
diff --git a/cross/lib/regex.h b/cross/lib/regex.h deleted file mode 100644 index 9ef0252ffff..00000000000 --- a/cross/lib/regex.h +++ /dev/null @@ -1,699 +0,0 @@ -/* Definitions for data structures and routines for the regular - expression library. - Copyright (C) 1985, 1989-2023 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _REGEX_H -#define _REGEX_H 1 - -#include <sys/types.h> - -/* Allow the use in C++ code. */ -#ifdef __cplusplus -extern "C" { -#endif - -/* Define __USE_GNU to declare GNU extensions that violate the - POSIX name space rules. */ -#ifdef _GNU_SOURCE -# define __USE_GNU 1 -#endif - -#ifdef _REGEX_LARGE_OFFSETS - -/* Use types and values that are wide enough to represent signed and - unsigned byte offsets in memory. This currently works only when - the regex code is used outside of the GNU C library; it is not yet - supported within glibc itself, and glibc users should not define - _REGEX_LARGE_OFFSETS. */ - -/* The type of object sizes. */ -typedef size_t __re_size_t; - -/* The type of object sizes, in places where the traditional code - uses unsigned long int. */ -typedef size_t __re_long_size_t; - -#else - -/* The traditional GNU regex implementation mishandles strings longer - than INT_MAX. */ -typedef unsigned int __re_size_t; -typedef unsigned long int __re_long_size_t; - -#endif - -/* The following two types have to be signed and unsigned integer type - wide enough to hold a value of a pointer. For most ANSI compilers - ptrdiff_t and size_t should be likely OK. Still size of these two - types is 2 for Microsoft C. Ugh... */ -typedef long int s_reg_t; -typedef unsigned long int active_reg_t; - -/* The following bits are used to determine the regexp syntax we - recognize. The set/not-set meanings are chosen so that Emacs syntax - remains the value 0. The bits are given in alphabetical order, and - the definitions shifted by one from the previous bit; thus, when we - add or remove a bit, only one other definition need change. */ -typedef unsigned long int reg_syntax_t; - -#ifdef __USE_GNU -/* If this bit is not set, then \ inside a bracket expression is literal. - If set, then such a \ quotes the following character. */ -# define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1) - -/* If this bit is not set, then + and ? are operators, and \+ and \? are - literals. - If set, then \+ and \? are operators and + and ? are literals. */ -# define RE_BK_PLUS_QM (RE_BACKSLASH_ESCAPE_IN_LISTS << 1) - -/* If this bit is set, then character classes are supported. They are: - [:alpha:], [:upper:], [:lower:], [:digit:], [:alnum:], [:xdigit:], - [:space:], [:print:], [:punct:], [:graph:], and [:cntrl:]. - If not set, then character classes are not supported. */ -# define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1) - -/* If this bit is set, then ^ and $ are always anchors (outside bracket - expressions, of course). - If this bit is not set, then it depends: - ^ is an anchor if it is at the beginning of a regular - expression or after an open-group or an alternation operator; - $ is an anchor if it is at the end of a regular expression, or - before a close-group or an alternation operator. - - This bit could be (re)combined with RE_CONTEXT_INDEP_OPS, because - POSIX draft 11.2 says that * etc. in leading positions is undefined. - We already implemented a previous draft which made those constructs - invalid, though, so we haven't changed the code back. */ -# define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1) - -/* If this bit is set, then special characters are always special - regardless of where they are in the pattern. - If this bit is not set, then special characters are special only in - some contexts; otherwise they are ordinary. Specifically, - * + ? and intervals are only special when not after the beginning, - open-group, or alternation operator. */ -# define RE_CONTEXT_INDEP_OPS (RE_CONTEXT_INDEP_ANCHORS << 1) - -/* If this bit is set, then *, +, ?, and { cannot be first in an re or - immediately after an alternation or begin-group operator. */ -# define RE_CONTEXT_INVALID_OPS (RE_CONTEXT_INDEP_OPS << 1) - -/* If this bit is set, then . matches newline. - If not set, then it doesn't. */ -# define RE_DOT_NEWLINE (RE_CONTEXT_INVALID_OPS << 1) - -/* If this bit is set, then . doesn't match NUL. - If not set, then it does. */ -# define RE_DOT_NOT_NULL (RE_DOT_NEWLINE << 1) - -/* If this bit is set, nonmatching lists [^...] do not match newline. - If not set, they do. */ -# define RE_HAT_LISTS_NOT_NEWLINE (RE_DOT_NOT_NULL << 1) - -/* If this bit is set, either \{...\} or {...} defines an - interval, depending on RE_NO_BK_BRACES. - If not set, \{, \}, {, and } are literals. */ -# define RE_INTERVALS (RE_HAT_LISTS_NOT_NEWLINE << 1) - -/* If this bit is set, +, ? and | aren't recognized as operators. - If not set, they are. */ -# define RE_LIMITED_OPS (RE_INTERVALS << 1) - -/* If this bit is set, newline is an alternation operator. - If not set, newline is literal. */ -# define RE_NEWLINE_ALT (RE_LIMITED_OPS << 1) - -/* If this bit is set, then '{...}' defines an interval, and \{ and \} - are literals. - If not set, then '\{...\}' defines an interval. */ -# define RE_NO_BK_BRACES (RE_NEWLINE_ALT << 1) - -/* If this bit is set, (...) defines a group, and \( and \) are literals. - If not set, \(...\) defines a group, and ( and ) are literals. */ -# define RE_NO_BK_PARENS (RE_NO_BK_BRACES << 1) - -/* If this bit is set, then \<digit> matches <digit>. - If not set, then \<digit> is a back-reference. */ -# define RE_NO_BK_REFS (RE_NO_BK_PARENS << 1) - -/* If this bit is set, then | is an alternation operator, and \| is literal. - If not set, then \| is an alternation operator, and | is literal. */ -# define RE_NO_BK_VBAR (RE_NO_BK_REFS << 1) - -/* If this bit is set, then an ending range point collating higher - than the starting range point, as in [z-a], is invalid. - If not set, then when ending range point collates higher than the - starting range point, the range is ignored. */ -# define RE_NO_EMPTY_RANGES (RE_NO_BK_VBAR << 1) - -/* If this bit is set, then an unmatched ) is ordinary. - If not set, then an unmatched ) is invalid. */ -# define RE_UNMATCHED_RIGHT_PAREN_ORD (RE_NO_EMPTY_RANGES << 1) - -/* If this bit is set, succeed as soon as we match the whole pattern, - without further backtracking. */ -# define RE_NO_POSIX_BACKTRACKING (RE_UNMATCHED_RIGHT_PAREN_ORD << 1) - -/* If this bit is set, do not process the GNU regex operators. - If not set, then the GNU regex operators are recognized. */ -# define RE_NO_GNU_OPS (RE_NO_POSIX_BACKTRACKING << 1) - -/* If this bit is set, turn on internal regex debugging. - If not set, and debugging was on, turn it off. - This only works if regex.c is compiled -DDEBUG. - We define this bit always, so that all that's needed to turn on - debugging is to recompile regex.c; the calling code can always have - this bit set, and it won't affect anything in the normal case. */ -# define RE_DEBUG (RE_NO_GNU_OPS << 1) - -/* If this bit is set, a syntactically invalid interval is treated as - a string of ordinary characters. For example, the ERE 'a{1' is - treated as 'a\{1'. */ -# define RE_INVALID_INTERVAL_ORD (RE_DEBUG << 1) - -/* If this bit is set, then ignore case when matching. - If not set, then case is significant. */ -# define RE_ICASE (RE_INVALID_INTERVAL_ORD << 1) - -/* This bit is used internally like RE_CONTEXT_INDEP_ANCHORS but only - for ^, because it is difficult to scan the regex backwards to find - whether ^ should be special. */ -# define RE_CARET_ANCHORS_HERE (RE_ICASE << 1) - -/* If this bit is set, then \{ cannot be first in a regex or - immediately after an alternation, open-group or \} operator. */ -# define RE_CONTEXT_INVALID_DUP (RE_CARET_ANCHORS_HERE << 1) - -/* If this bit is set, then no_sub will be set to 1 during - re_compile_pattern. */ -# define RE_NO_SUB (RE_CONTEXT_INVALID_DUP << 1) -#endif - -/* This global variable defines the particular regexp syntax to use (for - some interfaces). When a regexp is compiled, the syntax used is - stored in the pattern buffer, so changing this does not affect - already-compiled regexps. */ -extern reg_syntax_t re_syntax_options; - -#ifdef __USE_GNU -/* Define combinations of the above bits for the standard possibilities. - (The [[[ comments delimit what gets put into the Texinfo file, so - don't delete them!) */ -/* [[[begin syntaxes]]] */ -# define RE_SYNTAX_EMACS 0 - -# define RE_SYNTAX_AWK \ - (RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DOT_NOT_NULL \ - | RE_NO_BK_PARENS | RE_NO_BK_REFS \ - | RE_NO_BK_VBAR | RE_NO_EMPTY_RANGES \ - | RE_DOT_NEWLINE | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CHAR_CLASSES \ - | RE_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS) - -# define RE_SYNTAX_GNU_AWK \ - ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \ - | RE_INVALID_INTERVAL_ORD) \ - & ~(RE_DOT_NOT_NULL | RE_CONTEXT_INDEP_OPS \ - | RE_CONTEXT_INVALID_OPS )) - -# define RE_SYNTAX_POSIX_AWK \ - (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \ - | RE_INTERVALS | RE_NO_GNU_OPS \ - | RE_INVALID_INTERVAL_ORD) - -# define RE_SYNTAX_GREP \ - ((RE_SYNTAX_POSIX_BASIC | RE_NEWLINE_ALT) \ - & ~(RE_CONTEXT_INVALID_DUP | RE_DOT_NOT_NULL)) - -# define RE_SYNTAX_EGREP \ - ((RE_SYNTAX_POSIX_EXTENDED | RE_INVALID_INTERVAL_ORD | RE_NEWLINE_ALT) \ - & ~(RE_CONTEXT_INVALID_OPS | RE_DOT_NOT_NULL)) - -/* POSIX grep -E behavior is no longer incompatible with GNU. */ -# define RE_SYNTAX_POSIX_EGREP \ - RE_SYNTAX_EGREP - -/* P1003.2/D11.2, section 4.20.7.1, lines 5078ff. */ -# define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC - -# define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC - -/* Syntax bits common to both basic and extended POSIX regex syntax. */ -# define _RE_SYNTAX_POSIX_COMMON \ - (RE_CHAR_CLASSES | RE_DOT_NEWLINE | RE_DOT_NOT_NULL \ - | RE_INTERVALS | RE_NO_EMPTY_RANGES) - -# define RE_SYNTAX_POSIX_BASIC \ - (_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM | RE_CONTEXT_INVALID_DUP) - -/* Differs from ..._POSIX_BASIC only in that RE_BK_PLUS_QM becomes - RE_LIMITED_OPS, i.e., \? \+ \| are not recognized. Actually, this - isn't minimal, since other operators, such as \`, aren't disabled. */ -# define RE_SYNTAX_POSIX_MINIMAL_BASIC \ - (_RE_SYNTAX_POSIX_COMMON | RE_LIMITED_OPS) - -# define RE_SYNTAX_POSIX_EXTENDED \ - (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INDEP_OPS | RE_NO_BK_BRACES \ - | RE_NO_BK_PARENS | RE_NO_BK_VBAR \ - | RE_CONTEXT_INVALID_OPS | RE_UNMATCHED_RIGHT_PAREN_ORD) - -/* Differs from ..._POSIX_EXTENDED in that RE_CONTEXT_INDEP_OPS is - removed and RE_NO_BK_REFS is added. */ -# define RE_SYNTAX_POSIX_MINIMAL_EXTENDED \ - (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INVALID_OPS | RE_NO_BK_BRACES \ - | RE_NO_BK_PARENS | RE_NO_BK_REFS \ - | RE_NO_BK_VBAR | RE_UNMATCHED_RIGHT_PAREN_ORD) -/* [[[end syntaxes]]] */ - -/* Maximum number of duplicates an interval can allow. POSIX-conforming - systems might define this in <limits.h>, but we want our - value, so remove any previous define. */ -# ifdef _REGEX_INCLUDE_LIMITS_H -# include <limits.h> -# endif -# ifdef RE_DUP_MAX -# undef RE_DUP_MAX -# endif - -/* RE_DUP_MAX is 2**15 - 1 because an earlier implementation stored - the counter as a 2-byte signed integer. This is no longer true, so - RE_DUP_MAX could be increased to (INT_MAX / 10 - 1), or to - ((SIZE_MAX - 9) / 10) if _REGEX_LARGE_OFFSETS is defined. - However, there would be a huge performance problem if someone - actually used a pattern like a\{214748363\}, so RE_DUP_MAX retains - its historical value. */ -# define RE_DUP_MAX (0x7fff) -#endif - - -/* POSIX 'cflags' bits (i.e., information for 'regcomp'). */ - -/* If this bit is set, then use extended regular expression syntax. - If not set, then use basic regular expression syntax. */ -#define REG_EXTENDED 1 - -/* If this bit is set, then ignore case when matching. - If not set, then case is significant. */ -#define REG_ICASE (1 << 1) - -/* If this bit is set, then anchors do not match at newline - characters in the string. - If not set, then anchors do match at newlines. */ -#define REG_NEWLINE (1 << 2) - -/* If this bit is set, then report only success or fail in regexec. - If not set, then returns differ between not matching and errors. */ -#define REG_NOSUB (1 << 3) - - -/* POSIX 'eflags' bits (i.e., information for regexec). */ - -/* If this bit is set, then the beginning-of-line operator doesn't match - the beginning of the string (presumably because it's not the - beginning of a line). - If not set, then the beginning-of-line operator does match the - beginning of the string. */ -#define REG_NOTBOL 1 - -/* Like REG_NOTBOL, except for the end-of-line. */ -#define REG_NOTEOL (1 << 1) - -/* Use PMATCH[0] to delimit the start and end of the search in the - buffer. */ -#define REG_STARTEND (1 << 2) - - -/* If any error codes are removed, changed, or added, update the - '__re_error_msgid' table in regcomp.c. */ - -typedef enum -{ - _REG_ENOSYS = -1, /* This will never happen for this implementation. */ - _REG_NOERROR = 0, /* Success. */ - _REG_NOMATCH, /* Didn't find a match (for regexec). */ - - /* POSIX regcomp return error codes. (In the order listed in the - standard.) */ - _REG_BADPAT, /* Invalid pattern. */ - _REG_ECOLLATE, /* Invalid collating element. */ - _REG_ECTYPE, /* Invalid character class name. */ - _REG_EESCAPE, /* Trailing backslash. */ - _REG_ESUBREG, /* Invalid back reference. */ - _REG_EBRACK, /* Unmatched left bracket. */ - _REG_EPAREN, /* Parenthesis imbalance. */ - _REG_EBRACE, /* Unmatched \{. */ - _REG_BADBR, /* Invalid contents of \{\}. */ - _REG_ERANGE, /* Invalid range end. */ - _REG_ESPACE, /* Ran out of memory. */ - _REG_BADRPT, /* No preceding re for repetition op. */ - - /* Error codes we've added. */ - _REG_EEND, /* Premature end. */ - _REG_ESIZE, /* Too large (e.g., repeat count too large). */ - _REG_ERPAREN /* Unmatched ) or \); not returned from regcomp. */ -} reg_errcode_t; - -#if defined _XOPEN_SOURCE || defined __USE_XOPEN2K -# define REG_ENOSYS _REG_ENOSYS -#endif -#define REG_NOERROR _REG_NOERROR -#define REG_NOMATCH _REG_NOMATCH -#define REG_BADPAT _REG_BADPAT -#define REG_ECOLLATE _REG_ECOLLATE -#define REG_ECTYPE _REG_ECTYPE -#define REG_EESCAPE _REG_EESCAPE -#define REG_ESUBREG _REG_ESUBREG -#define REG_EBRACK _REG_EBRACK -#define REG_EPAREN _REG_EPAREN -#define REG_EBRACE _REG_EBRACE -#define REG_BADBR _REG_BADBR -#define REG_ERANGE _REG_ERANGE -#define REG_ESPACE _REG_ESPACE -#define REG_BADRPT _REG_BADRPT -#define REG_EEND _REG_EEND -#define REG_ESIZE _REG_ESIZE -#define REG_ERPAREN _REG_ERPAREN - -/* This data structure represents a compiled pattern. Before calling - the pattern compiler, the fields 'buffer', 'allocated', 'fastmap', - and 'translate' can be set. After the pattern has been compiled, - the fields 're_nsub', 'not_bol' and 'not_eol' are available. All - other fields are private to the regex routines. */ - -#ifndef RE_TRANSLATE_TYPE -# define __RE_TRANSLATE_TYPE unsigned char * -# ifdef __USE_GNU -# define RE_TRANSLATE_TYPE __RE_TRANSLATE_TYPE -# endif -#endif - -#ifdef __USE_GNU -# define __REPB_PREFIX(name) name -#else -# define __REPB_PREFIX(name) __##name -#endif - -struct re_pattern_buffer -{ - /* Space that holds the compiled pattern. The type - 'struct re_dfa_t' is private and is not declared here. */ - struct re_dfa_t *__REPB_PREFIX(buffer); - - /* Number of bytes to which 'buffer' points. */ - __re_long_size_t __REPB_PREFIX(allocated); - - /* Number of bytes actually used in 'buffer'. */ - __re_long_size_t __REPB_PREFIX(used); - - /* Syntax setting with which the pattern was compiled. */ - reg_syntax_t __REPB_PREFIX(syntax); - - /* Pointer to a fastmap, if any, otherwise zero. re_search uses the - fastmap, if there is one, to skip over impossible starting points - for matches. */ - char *__REPB_PREFIX(fastmap); - - /* Either a translate table to apply to all characters before - comparing them, or zero for no translation. The translation is - applied to a pattern when it is compiled and to a string when it - is matched. */ - __RE_TRANSLATE_TYPE __REPB_PREFIX(translate); - - /* Number of subexpressions found by the compiler. */ - size_t re_nsub; - - /* Zero if this pattern cannot match the empty string, one else. - Well, in truth it's used only in 're_search_2', to see whether or - not we should use the fastmap, so we don't set this absolutely - perfectly; see 're_compile_fastmap' (the "duplicate" case). */ - unsigned __REPB_PREFIX(can_be_null) : 1; - - /* If REGS_UNALLOCATED, allocate space in the 'regs' structure - for 'max (RE_NREGS, re_nsub + 1)' groups. - If REGS_REALLOCATE, reallocate space if necessary. - If REGS_FIXED, use what's there. */ -#ifdef __USE_GNU -# define REGS_UNALLOCATED 0 -# define REGS_REALLOCATE 1 -# define REGS_FIXED 2 -#endif - unsigned __REPB_PREFIX(regs_allocated) : 2; - - /* Set to zero when 're_compile_pattern' compiles a pattern; set to - one by 're_compile_fastmap' if it updates the fastmap. */ - unsigned __REPB_PREFIX(fastmap_accurate) : 1; - - /* If set, 're_match_2' does not return information about - subexpressions. */ - unsigned __REPB_PREFIX(no_sub) : 1; - - /* If set, a beginning-of-line anchor doesn't match at the beginning - of the string. */ - unsigned __REPB_PREFIX(not_bol) : 1; - - /* Similarly for an end-of-line anchor. */ - unsigned __REPB_PREFIX(not_eol) : 1; - - /* If true, an anchor at a newline matches. */ - unsigned __REPB_PREFIX(newline_anchor) : 1; -}; - -typedef struct re_pattern_buffer regex_t; - -/* Type for byte offsets within the string. POSIX mandates this. */ -#ifdef _REGEX_LARGE_OFFSETS -/* POSIX 1003.1-2008 requires that regoff_t be at least as wide as - ptrdiff_t and ssize_t. We don't know of any hosts where ptrdiff_t - is wider than ssize_t, so ssize_t is safe. ptrdiff_t is not - visible here, so use ssize_t. */ -typedef ssize_t regoff_t; -#else -/* The traditional GNU regex implementation mishandles strings longer - than INT_MAX. */ -typedef int regoff_t; -#endif - - -#ifdef __USE_GNU -/* This is the structure we store register match data in. See - regex.texinfo for a full description of what registers match. */ -struct re_registers -{ - __re_size_t num_regs; - regoff_t *start; - regoff_t *end; -}; - - -/* If 'regs_allocated' is REGS_UNALLOCATED in the pattern buffer, - 're_match_2' returns information about at least this many registers - the first time a 'regs' structure is passed. */ -# ifndef RE_NREGS -# define RE_NREGS 30 -# endif -#endif - - -/* POSIX specification for registers. Aside from the different names than - 're_registers', POSIX uses an array of structures, instead of a - structure of arrays. */ -typedef struct -{ - regoff_t rm_so; /* Byte offset from string's start to substring's start. */ - regoff_t rm_eo; /* Byte offset from string's start to substring's end. */ -} regmatch_t; - -/* Declarations for routines. */ - -#ifndef _REGEX_NELTS -# if (defined __STDC_VERSION__ && 199901L <= __STDC_VERSION__ \ - && !defined __STDC_NO_VLA__) -# define _REGEX_NELTS(n) n -# else -# define _REGEX_NELTS(n) -# endif -#endif - -#if defined __GNUC__ && 4 < __GNUC__ + (6 <= __GNUC_MINOR__) -# pragma GCC diagnostic push -# pragma GCC diagnostic ignored "-Wvla" -#endif - -#ifndef _Attr_access_ -# ifdef __attr_access -# define _Attr_access_(arg) __attr_access (arg) -# elif defined __GNUC__ && 10 <= __GNUC__ -# define _Attr_access_(x) __attribute__ ((__access__ x)) -# else -# define _Attr_access_(x) -# endif -#endif - -#ifdef __USE_GNU -/* Sets the current default syntax to SYNTAX, and return the old syntax. - You can also simply assign to the 're_syntax_options' variable. */ -extern reg_syntax_t re_set_syntax (reg_syntax_t __syntax); - -/* Compile the regular expression PATTERN, with length LENGTH - and syntax given by the global 're_syntax_options', into the buffer - BUFFER. Return NULL if successful, and an error string if not. - - To free the allocated storage, you must call 'regfree' on BUFFER. - Note that the translate table must either have been initialized by - 'regcomp', with a malloc'ed value, or set to NULL before calling - 'regfree'. */ -extern const char *re_compile_pattern (const char *__pattern, size_t __length, - struct re_pattern_buffer *__buffer) - _Attr_access_ ((__read_only__, 1, 2)); - - -/* Compile a fastmap for the compiled pattern in BUFFER; used to - accelerate searches. Return 0 if successful and -2 if was an - internal error. */ -extern int re_compile_fastmap (struct re_pattern_buffer *__buffer); - - -/* Search in the string STRING (with length LENGTH) for the pattern - compiled into BUFFER. Start searching at position START, for RANGE - characters. Return the starting position of the match, -1 for no - match, or -2 for an internal error. Also return register - information in REGS (if REGS and BUFFER->no_sub are nonzero). */ -extern regoff_t re_search (struct re_pattern_buffer *__buffer, - const char *__String, regoff_t __length, - regoff_t __start, regoff_t __range, - struct re_registers *__regs) - _Attr_access_ ((__read_only__, 2, 3)); - - -/* Like 're_search', but search in the concatenation of STRING1 and - STRING2. Also, stop searching at index START + STOP. */ -extern regoff_t re_search_2 (struct re_pattern_buffer *__buffer, - const char *__string1, regoff_t __length1, - const char *__string2, regoff_t __length2, - regoff_t __start, regoff_t __range, - struct re_registers *__regs, - regoff_t __stop) - _Attr_access_ ((__read_only__, 2, 3)) - _Attr_access_ ((__read_only__, 4, 5)); - - -/* Like 're_search', but return how many characters in STRING the regexp - in BUFFER matched, starting at position START. */ -extern regoff_t re_match (struct re_pattern_buffer *__buffer, - const char *__String, regoff_t __length, - regoff_t __start, struct re_registers *__regs) - _Attr_access_ ((__read_only__, 2, 3)); - - -/* Relates to 're_match' as 're_search_2' relates to 're_search'. */ -extern regoff_t re_match_2 (struct re_pattern_buffer *__buffer, - const char *__string1, regoff_t __length1, - const char *__string2, regoff_t __length2, - regoff_t __start, struct re_registers *__regs, - regoff_t __stop) - _Attr_access_ ((__read_only__, 2, 3)) - _Attr_access_ ((__read_only__, 4, 5)); - - -/* Set REGS to hold NUM_REGS registers, storing them in STARTS and - ENDS. Subsequent matches using BUFFER and REGS will use this memory - for recording register information. STARTS and ENDS must be - allocated with malloc, and must each be at least 'NUM_REGS * sizeof - (regoff_t)' bytes long. - - If NUM_REGS == 0, then subsequent matches should allocate their own - register data. - - Unless this function is called, the first search or match using - BUFFER will allocate its own register data, without - freeing the old data. */ -extern void re_set_registers (struct re_pattern_buffer *__buffer, - struct re_registers *__regs, - __re_size_t __num_regs, - regoff_t *__starts, regoff_t *__ends); -#endif /* Use GNU */ - -#if defined _REGEX_RE_COMP || (defined _LIBC && defined __USE_MISC) -/* 4.2 bsd compatibility. */ -extern char *re_comp (const char *); -extern int re_exec (const char *); -#endif - -/* For plain 'restrict', use glibc's __restrict if defined. - Otherwise, GCC 2.95 and later have "__restrict"; C99 compilers have - "restrict", and "configure" may have defined "restrict". - Other compilers use __restrict, __restrict__, and _Restrict, and - 'configure' might #define 'restrict' to those words, so pick a - different name. */ -#ifndef _Restrict_ -# if defined __restrict \ - || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \ - || __clang_major__ >= 3 -# define _Restrict_ __restrict -# elif 199901L <= __STDC_VERSION__ || defined restrict -# define _Restrict_ restrict -# else -# define _Restrict_ -# endif -#endif -/* For the ISO C99 syntax - array_name[restrict] - use glibc's __restrict_arr if available. - Otherwise, GCC 3.1 and clang support this syntax (but not in C++ mode). - Other ISO C99 compilers support it as well. */ -#ifndef _Restrict_arr_ -# ifdef __restrict_arr -# define _Restrict_arr_ __restrict_arr -# elif ((199901L <= __STDC_VERSION__ \ - || 3 < __GNUC__ + (1 <= __GNUC_MINOR__) \ - || __clang_major__ >= 3) \ - && !defined __cplusplus) -# define _Restrict_arr_ _Restrict_ -# else -# define _Restrict_arr_ -# endif -#endif - -/* POSIX compatibility. */ -extern int regcomp (regex_t *_Restrict_ __preg, - const char *_Restrict_ __pattern, - int __cflags); - -extern int regexec (const regex_t *_Restrict_ __preg, - const char *_Restrict_ __String, size_t __nmatch, - regmatch_t __pmatch[_Restrict_arr_ - _REGEX_NELTS (__nmatch)], - int __eflags); - -extern size_t regerror (int __errcode, const regex_t *_Restrict_ __preg, - char *_Restrict_ __errbuf, size_t __errbuf_size) - _Attr_access_ ((__write_only__, 3, 4)); - -extern void regfree (regex_t *__preg); - -#if defined __GNUC__ && 4 < __GNUC__ + (6 <= __GNUC_MINOR__) -# pragma GCC diagnostic pop -#endif - -#ifdef __cplusplus -} -#endif /* C++ */ - -#endif /* regex.h */ |