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authorPeter S. Mazinger <ps.m@gmx.net>2011-03-26 18:36:19 +0100
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2012-06-15 14:00:34 +0200
commit1a6e3c3f8fe42baf353b993d844b166273261380 (patch)
treeb1f2a6072c76808ab3b9a796b65e64d494f83733 /include
parent73089985a93125f93894f3bead26237430fdaaad (diff)
regex.h: sync with glibc, making it more POSIX-like
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'include')
-rw-r--r--include/regex.h138
1 files changed, 73 insertions, 65 deletions
diff --git a/include/regex.h b/include/regex.h
index 1d4ddd27d..f5dda89f7 100644
--- a/include/regex.h
+++ b/include/regex.h
@@ -1,6 +1,6 @@
/* Definitions for data structures and routines for the regular
expression library.
- Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003,2005
+ Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003,2005,2006,2008
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -22,21 +22,10 @@
#ifndef _REGEX_H
#define _REGEX_H 1
-#include <features.h>
-
#include <sys/types.h>
__BEGIN_DECLS
-/* POSIX says that <sys/types.h> must be included (by the caller) before
- <regex.h>. */
-
-#if !defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE && defined VMS
-/* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it
- should be there. */
-# include <stddef.h>
-#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
@@ -51,20 +40,21 @@ typedef unsigned long int active_reg_t;
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)
+# 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)
+# 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)
+# define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1)
/* If this bit is set, then ^ and $ are always anchors (outside bracket
expressions, of course).
@@ -78,7 +68,7 @@ typedef unsigned long int reg_syntax_t;
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)
+# 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.
@@ -86,71 +76,71 @@ typedef unsigned long int reg_syntax_t;
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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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)
+# 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.
@@ -158,29 +148,30 @@ typedef unsigned long int reg_syntax_t;
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)
+# 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)
+# 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)
+# 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)
+# 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. */
-#define RE_CONTEXT_INVALID_DUP (RE_CARET_ANCHORS_HERE << 1)
+# 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)
+# 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
@@ -188,6 +179,7 @@ typedef unsigned long int reg_syntax_t;
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!) */
@@ -262,11 +254,12 @@ extern reg_syntax_t re_syntax_options;
/* Maximum number of duplicates an interval can allow. Some systems
(erroneously) define this in other header files, but we want our
value, so remove any previous define. */
-#ifdef RE_DUP_MAX
-# undef RE_DUP_MAX
-#endif
+# ifdef RE_DUP_MAX
+# undef RE_DUP_MAX
+# endif
/* If sizeof(int) == 2, then ((1 << 15) - 1) overflows. */
-#define RE_DUP_MAX (0x7fff)
+# define RE_DUP_MAX (0x7fff)
+#endif
/* POSIX `cflags' bits (i.e., information for `regcomp'). */
@@ -310,7 +303,7 @@ extern reg_syntax_t re_syntax_options;
`re_error_msg' table in regex.c. */
typedef enum
{
-#ifdef _XOPEN_SOURCE
+#if defined _XOPEN_SOURCE || defined __USE_XOPEN2K
REG_ENOSYS = -1, /* This will never happen for this implementation. */
#endif
@@ -345,7 +338,16 @@ typedef enum
private to the regex routines. */
#ifndef RE_TRANSLATE_TYPE
-# define RE_TRANSLATE_TYPE unsigned char *
+# 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
@@ -353,27 +355,27 @@ struct re_pattern_buffer
/* Space that holds the compiled pattern. It is declared as
`unsigned char *' because its elements are sometimes used as
array indexes. */
- unsigned char *buffer;
+ unsigned char *__REPB_PREFIX(buffer);
/* Number of bytes to which `buffer' points. */
- unsigned long int allocated;
+ unsigned long int __REPB_PREFIX(allocated);
/* Number of bytes actually used in `buffer'. */
- unsigned long int used;
+ unsigned long int __REPB_PREFIX(used);
/* Syntax setting with which the pattern was compiled. */
- reg_syntax_t syntax;
+ 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 *fastmap;
+ 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 translate;
+ __RE_TRANSLATE_TYPE __REPB_PREFIX(translate);
/* Number of subexpressions found by the compiler. */
size_t re_nsub;
@@ -382,34 +384,36 @@ struct re_pattern_buffer
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 can_be_null : 1;
+ 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. */
-#define REGS_UNALLOCATED 0
-#define REGS_REALLOCATE 1
-#define REGS_FIXED 2
- unsigned regs_allocated : 2;
+#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 `regex_compile' compiles a pattern; set to one
by `re_compile_fastmap' if it updates the fastmap. */
- unsigned fastmap_accurate : 1;
+ unsigned __REPB_PREFIX(fastmap_accurate) : 1;
/* If set, `re_match_2' does not return information about
subexpressions. */
- unsigned no_sub : 1;
+ unsigned __REPB_PREFIX(no_sub) : 1;
/* If set, a beginning-of-line anchor doesn't match at the beginning
of the string. */
- unsigned not_bol : 1;
+ unsigned __REPB_PREFIX(not_bol) : 1;
/* Similarly for an end-of-line anchor. */
- unsigned not_eol : 1;
+ unsigned __REPB_PREFIX(not_eol) : 1;
/* If true, an anchor at a newline matches. */
- unsigned newline_anchor : 1;
+ unsigned __REPB_PREFIX(newline_anchor) : 1;
};
typedef struct re_pattern_buffer regex_t;
@@ -418,6 +422,7 @@ typedef struct re_pattern_buffer regex_t;
typedef int regoff_t;
+#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
@@ -431,8 +436,9 @@ struct re_registers
/* 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
+# ifndef RE_NREGS
+# define RE_NREGS 30
+# endif
#endif
@@ -447,7 +453,7 @@ typedef struct
/* Declarations for routines. */
-
+#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);
@@ -515,8 +521,9 @@ extern void re_set_registers (struct re_pattern_buffer *__buffer,
struct re_registers *__regs,
unsigned int __num_regs,
regoff_t *__starts, regoff_t *__ends);
+#endif /* Use GNU */
-#if defined _REGEX_RE_COMP || defined _LIBC
+#if defined _REGEX_RE_COMP || (defined _LIBC && defined __USE_BSD)
# ifndef _CRAY
/* 4.2 bsd compatibility. */
extern char *re_comp (const char *);
@@ -537,7 +544,8 @@ extern int re_exec (const char *);
#endif
/* gcc 3.1 and up support the [restrict] syntax. */
#ifndef __restrict_arr
-# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+# if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)) \
+ && !defined __GNUG__
# define __restrict_arr __restrict
# else
# define __restrict_arr