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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /posix/regex.h
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'posix/regex.h')
-rw-r--r--posix/regex.h173
1 files changed, 105 insertions, 68 deletions
diff --git a/posix/regex.h b/posix/regex.h
index 807c404ec2..b2d9a62fec 100644
--- a/posix/regex.h
+++ b/posix/regex.h
@@ -1,6 +1,6 @@
/* Definitions for data structures and routines for the regular
expression library.
- Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003,2005,2006
+ Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -29,6 +29,15 @@
extern "C" {
#endif
+/* 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
@@ -198,7 +207,7 @@ extern reg_syntax_t re_syntax_options;
& ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS \
| RE_CONTEXT_INVALID_OPS ))
-#define RE_SYNTAX_POSIX_AWK \
+#define RE_SYNTAX_POSIX_AWK \
(RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \
| RE_INTERVALS | RE_NO_GNU_OPS)
@@ -337,71 +346,75 @@ typedef enum
private to the regex routines. */
#ifndef RE_TRANSLATE_TYPE
-# define RE_TRANSLATE_TYPE unsigned char *
+# define RE_TRANSLATE_TYPE char *
#endif
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. */
+/* [[[begin 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;
- /* Number of bytes to which `buffer' points. */
+ /* Number of bytes to which `buffer' points. */
unsigned long int allocated;
- /* Number of bytes actually used in `buffer'. */
+ /* Number of bytes actually used in `buffer'. */
unsigned long int used;
- /* Syntax setting with which the pattern was compiled. */
+ /* Syntax setting with which the pattern was compiled. */
reg_syntax_t 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. */
+ /* 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;
- /* 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. */
+ /* 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;
- /* Number of subexpressions found by the compiler. */
+ /* 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). */
+ /* 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 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. */
+ /* 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;
- /* 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 `regex_compile' compiles a pattern; set to one
+ by `re_compile_fastmap' if it updates the fastmap. */
unsigned fastmap_accurate : 1;
- /* If set, `re_match_2' does not return information about
- subexpressions. */
+ /* If set, `re_match_2' does not return information about
+ subexpressions. */
unsigned no_sub : 1;
- /* If set, a beginning-of-line anchor doesn't match at the beginning
- of the string. */
+ /* If set, a beginning-of-line anchor doesn't match at the
+ beginning of the string. */
unsigned not_bol : 1;
- /* Similarly for an end-of-line anchor. */
+ /* Similarly for an end-of-line anchor. */
unsigned not_eol : 1;
- /* If true, an anchor at a newline matches. */
+ /* If true, an anchor at a newline matches. */
unsigned newline_anchor : 1;
+
+/* [[[end pattern_buffer]]] */
};
typedef struct re_pattern_buffer regex_t;
@@ -439,21 +452,38 @@ typedef struct
/* Declarations for routines. */
+/* To avoid duplicating every routine declaration -- once with a
+ prototype (if we are ANSI), and once without (if we aren't) -- we
+ use the following macro to declare argument types. This
+ unfortunately clutters up the declarations a bit, but I think it's
+ worth it. */
+
+#if __STDC__
+
+# define _RE_ARGS(args) args
+
+#else /* not __STDC__ */
+
+# define _RE_ARGS(args) ()
+
+#endif /* not __STDC__ */
+
/* 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);
+extern reg_syntax_t re_set_syntax _RE_ARGS ((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. */
-extern const char *re_compile_pattern (const char *__pattern, size_t __length,
- struct re_pattern_buffer *__buffer);
+extern const char *re_compile_pattern
+ _RE_ARGS ((const char *pattern, size_t length,
+ struct re_pattern_buffer *buffer));
/* 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);
+extern int re_compile_fastmap _RE_ARGS ((struct re_pattern_buffer *buffer));
/* Search in the string STRING (with length LENGTH) for the pattern
@@ -461,30 +491,31 @@ extern int re_compile_fastmap (struct re_pattern_buffer *__buffer);
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 int re_search (struct re_pattern_buffer *__buffer, const char *__string,
- int __length, int __start, int __range,
- struct re_registers *__regs);
+extern int re_search
+ _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string,
+ int length, int start, int range, struct re_registers *regs));
/* Like `re_search', but search in the concatenation of STRING1 and
STRING2. Also, stop searching at index START + STOP. */
-extern int re_search_2 (struct re_pattern_buffer *__buffer,
- const char *__string1, int __length1,
- const char *__string2, int __length2, int __start,
- int __range, struct re_registers *__regs, int __stop);
+extern int re_search_2
+ _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string1,
+ int length1, const char *string2, int length2,
+ int start, int range, struct re_registers *regs, int stop));
/* Like `re_search', but return how many characters in STRING the regexp
in BUFFER matched, starting at position START. */
-extern int re_match (struct re_pattern_buffer *__buffer, const char *__string,
- int __length, int __start, struct re_registers *__regs);
+extern int re_match
+ _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string,
+ int length, int start, struct re_registers *regs));
/* Relates to `re_match' as `re_search_2' relates to `re_search'. */
-extern int re_match_2 (struct re_pattern_buffer *__buffer,
- const char *__string1, int __length1,
- const char *__string2, int __length2, int __start,
- struct re_registers *__regs, int __stop);
+extern int re_match_2
+ _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string1,
+ int length1, const char *string2, int length2,
+ int start, struct re_registers *regs, int stop));
/* Set REGS to hold NUM_REGS registers, storing them in STARTS and
@@ -499,16 +530,15 @@ extern int re_match_2 (struct re_pattern_buffer *__buffer,
Unless this function is called, the first search or match using
PATTERN_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,
- unsigned int __num_regs,
- regoff_t *__starts, regoff_t *__ends);
+extern void re_set_registers
+ _RE_ARGS ((struct re_pattern_buffer *buffer, struct re_registers *regs,
+ unsigned num_regs, regoff_t *starts, regoff_t *ends));
#if defined _REGEX_RE_COMP || defined _LIBC
# ifndef _CRAY
/* 4.2 bsd compatibility. */
-extern char *re_comp (const char *);
-extern int re_exec (const char *);
+extern char *re_comp _RE_ARGS ((const char *));
+extern int re_exec _RE_ARGS ((const char *));
# endif
#endif
@@ -525,8 +555,7 @@ 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)) \
- && !defined __GNUG__
+# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
# define __restrict_arr __restrict
# else
# define __restrict_arr
@@ -534,19 +563,19 @@ extern int re_exec (const char *);
#endif
/* POSIX compatibility. */
-extern int regcomp (regex_t *__restrict __preg,
- const char *__restrict __pattern,
- int __cflags);
+extern int regcomp _RE_ARGS ((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],
- int __eflags);
+extern int regexec _RE_ARGS ((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 _RE_ARGS ((int __errcode, const regex_t *__preg,
+ char *__errbuf, size_t __errbuf_size));
-extern void regfree (regex_t *__preg);
+extern void regfree _RE_ARGS ((regex_t *__preg));
#ifdef __cplusplus
@@ -554,3 +583,11 @@ extern void regfree (regex_t *__preg);
#endif /* C++ */
#endif /* regex.h */
+
+/*
+Local variables:
+make-backup-files: t
+version-control: t
+trim-versions-without-asking: nil
+End:
+*/