/* Definitions for data structures and routines for the regular
expression library.
- Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003,2005,2006
+ Copyright (C) 1985, 1989-1993, 1995-1998, 2000-2003, 2005-2006, 2009-2012
Free Software Foundation, Inc.
This file is part of the GNU C Library.
/* 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.
+ ^ 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.
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 \}
+/* If this bit is set, then '{...}' defines an interval, and \{ and \}
are literals.
- If not set, then `\{...\}' defines an interval. */
+ 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.
whether ^ should be special. */
# define RE_CARET_ANCHORS_HERE (RE_ICASE << 1)
-/* If this bit is set, then \{ cannot be first in an bre or
- immediately after an alternation or begin-group operator. */
+/* 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
#endif /* defined __USE_GNU_REGEX */
-/* POSIX `cflags' bits (i.e., information for `regcomp'). */
+/* 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_NOSUB (1 << 3)
-/* POSIX `eflags' bits (i.e., information for regexec). */
+/* 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
/* If any error codes are removed, changed, or added, update the
- `__re_error_msgid' table in regcomp.c. */
+ '__re_error_msgid' table in regcomp.c. */
typedef enum
{
#define REG_ESIZE _REG_ESIZE
#define REG_ERPAREN _REG_ERPAREN
\f
-/* struct re_pattern_buffer normally uses member names like `buffer'
+/* struct re_pattern_buffer normally uses member names like 'buffer'
that POSIX does not allow. In POSIX mode these members have names
- with leading `re_' (e.g., `re_buffer'). */
+ with leading 're_' (e.g., 're_buffer'). */
#ifdef __USE_GNU_REGEX
# define _REG_RE_NAME(id) id
# define _REG_RM_NAME(id) id
#endif
/* This data structure represents a compiled pattern. Before calling
- the pattern compiler, the fields `buffer', `allocated', `fastmap',
- `translate', and `no_sub' can be set. After the pattern has been
- compiled, the `re_nsub' field is available. All other fields are
+ the pattern compiler, the fields 'buffer', 'allocated', 'fastmap',
+ 'translate', and 'no_sub' can be set. After the pattern has been
+ compiled, the 're_nsub' field is available. All other fields are
private to the regex routines. */
struct re_pattern_buffer
{
/* Space that holds the compiled pattern. It is declared as
- `unsigned char *' because its elements are sometimes used as
+ 'unsigned char *' because its elements are sometimes used as
array indexes. */
unsigned char *_REG_RE_NAME (buffer);
- /* Number of bytes to which `buffer' points. */
+ /* Number of bytes to which 'buffer' points. */
__re_long_size_t _REG_RE_NAME (allocated);
- /* Number of bytes actually used in `buffer'. */
+ /* Number of bytes actually used in 'buffer'. */
__re_long_size_t _REG_RE_NAME (used);
/* Syntax setting with which the pattern was compiled. */
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
+ 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). */
+ perfectly; see 're_compile_fastmap' (the "duplicate" case). */
unsigned int _REG_RE_NAME (can_be_null) : 1;
- /* If REGS_UNALLOCATED, allocate space in the `regs' structure
- for `max (RE_NREGS, re_nsub + 1)' groups.
+ /* 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_REGEX
#endif
unsigned int _REG_RE_NAME (regs_allocated) : 2;
- /* Set to zero when `regex_compile' compiles a pattern; set to one
- by `re_compile_fastmap' if it updates the fastmap. */
+ /* Set to zero when 're_compile_pattern' compiles a pattern; set to
+ one by 're_compile_fastmap' if it updates the fastmap. */
unsigned int _REG_RE_NAME (fastmap_accurate) : 1;
- /* If set, `re_match_2' does not return information about
+ /* If set, 're_match_2' does not return information about
subexpressions. */
unsigned int _REG_RE_NAME (no_sub) : 1;
};
-/* 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. */
+/* 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. */
#if !defined RE_NREGS && defined __USE_GNU_REGEX
# define RE_NREGS 30
#endif
/* POSIX specification for registers. Aside from the different names than
- `re_registers', POSIX uses an array of structures, instead of a
+ 're_registers', POSIX uses an array of structures, instead of a
structure of arrays. */
typedef struct
{
/* Declarations for routines. */
/* Sets the current default syntax to SYNTAX, and return the old syntax.
- You can also simply assign to the `re_syntax_options' variable. */
+ 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
+ and syntax given by the global 're_syntax_options', into the buffer
BUFFER. Return NULL if successful, and an error string if not. */
extern const char *re_compile_pattern (const char *__pattern, size_t __length,
struct re_pattern_buffer *__buffer);
struct re_registers *__regs);
-/* Like `re_search', but search in the concatenation of STRING1 and
+/* 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, __re_idx_t __length1,
__re_idx_t __stop);
-/* Like `re_search', but return how many characters in STRING the regexp
+/* 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, __re_idx_t __length,
__re_idx_t __start, struct re_registers *__regs);
-/* Relates to `re_match' as `re_search_2' relates to `re_search'. */
+/* 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, __re_idx_t __length1,
const char *__string2, __re_idx_t __length2,
/* 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
+ 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
- PATTERN_BUFFER will allocate its own register data, without
- freeing the old data. */
+ 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,
#endif
/* GCC 2.95 and later have "__restrict"; C99 compilers have
- "restrict", and "configure" may have defined "restrict". */
-#ifndef __restrict
-# if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__))
-# if defined restrict || 199901L <= __STDC_VERSION__
-# define __restrict restrict
-# else
-# define __restrict
-# endif
+ "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 199901L <= __STDC_VERSION__
+# define _Restrict_ restrict
+# elif 2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__)
+# define _Restrict_ __restrict
+# else
+# define _Restrict_
# endif
#endif
/* gcc 3.1 and up support the [restrict] syntax. Don't trust
sys/cdefs.h's definition of __restrict_arr, though, as it
mishandles gcc -ansi -pedantic. */
-#undef __restrict_arr
-#if ((199901L <= __STDC_VERSION__ \
- || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) \
- && !__STRICT_ANSI__)) \
- && !defined __GNUG__)
-# define __restrict_arr __restrict
-#else
-# define __restrict_arr
+#ifndef _Restrict_arr_
+# if ((199901L <= __STDC_VERSION__ \
+ || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) \
+ && !defined __STRICT_ANSI__)) \
+ && !defined __GNUG__)
+# define _Restrict_arr_ _Restrict_
+# else
+# define _Restrict_arr_
+# endif
#endif
/* POSIX compatibility. */
-extern int regcomp (regex_t *__restrict __preg,
- const char *__restrict __pattern,
+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],
+extern int regexec (const regex_t *_Restrict_ __preg,
+ const char *_Restrict_ __string, size_t __nmatch,
+ regmatch_t __pmatch[_Restrict_arr_],
int __eflags);
-extern size_t regerror (int __errcode, const regex_t *__restrict __preg,
- char *__restrict __errbuf, size_t __errbuf_size);
+extern size_t regerror (int __errcode, const regex_t *_Restrict_ __preg,
+ char *_Restrict_ __errbuf, size_t __errbuf_size);
extern void regfree (regex_t *__preg);
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