/* Definitions for data structures and routines for the regular
- expression library, version 0.12.
- Copyright (C) 1985,89,90,91,92,93,95,96,97 Free Software Foundation, Inc.
+ expression library.
+ Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-
- NOTE: The canonical source of this file is maintained with the GNU C Library.
- Bugs can be reported to bug-glibc@prep.ai.mit.edu.
-
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
This program 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 General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- USA. */
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _REGEX_H
#define _REGEX_H 1
+#include <sys/types.h>
+
/* Allow the use in C++ code. */
#ifdef __cplusplus
extern "C" {
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 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
#define RE_SYNTAX_GNU_AWK \
((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG) \
- & ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS))
+ & ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS \
+ | RE_CONTEXT_INVALID_OPS ))
#define RE_SYNTAX_POSIX_AWK \
(RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \
| RE_NO_BK_VBAR)
#define RE_SYNTAX_POSIX_EGREP \
- (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES)
+ (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES \
+ | RE_INVALID_INTERVAL_ORD)
/* P1003.2/D11.2, section 4.20.7.1, lines 5078ff. */
#define RE_SYNTAX_ED RE_SYNTAX_POSIX_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_UNMATCHED_RIGHT_PAREN_ORD)
+ (_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_INVALID_OPS
- replaces RE_CONTEXT_INDEP_OPS and RE_NO_BK_REFS is added. */
+/* 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_error_msg' table in regex.c. */
typedef enum
{
-#if (_XOPEN_SOURCE - 0) == 500
- REG_NOSYS = -1, /* This will never happen for this implementation. */
+#ifdef _XOPEN_SOURCE
+ REG_ENOSYS = -1, /* This will never happen for this implementation. */
#endif
REG_NOERROR = 0, /* Success. */
\f
/* 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 _RE_ARGS ((reg_syntax_t syntax));
-extern reg_syntax_t re_set_syntax _RE_ARGS ((reg_syntax_t syntax));
+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. */
-extern const char *__re_compile_pattern
- _RE_ARGS ((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));
+extern const char *re_compile_pattern (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 _RE_ARGS ((struct re_pattern_buffer *buffer));
-extern int re_compile_fastmap _RE_ARGS ((struct re_pattern_buffer *buffer));
+extern int re_compile_fastmap (struct re_pattern_buffer *buffer);
/* Search in the string STRING (with length LENGTH) for the pattern
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
- _RE_ARGS ((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));
+extern int re_search (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
- _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));
-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));
+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);
/* Like `re_search', but return how many characters in STRING the regexp
in BUFFER matched, starting at position START. */
-extern int __re_match
- _RE_ARGS ((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));
+extern int re_match (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
- _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));
-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));
+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);
/* Set REGS to hold NUM_REGS registers, storing them in STARTS and
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
- _RE_ARGS ((struct re_pattern_buffer *buffer, struct re_registers *regs,
- unsigned 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));
-
-#ifdef _REGEX_RE_COMP
+extern void re_set_registers (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 _RE_ARGS ((const char *));
-extern int re_exec _RE_ARGS ((const char *));
+extern char *re_comp (const char *);
+extern int re_exec (const char *);
+# endif
+#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
+# endif
+#endif
+/* gcc 3.1 and up support the [restrict] syntax. */
+#ifndef __restrict_arr
+# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+# define __restrict_arr __restrict
+# else
+# define __restrict_arr
# endif
#endif
/* POSIX compatibility. */
-extern int __regcomp _RE_ARGS ((regex_t *__preg, const char *__pattern,
- int __cflags));
-extern int regcomp _RE_ARGS ((regex_t *__preg, const char *__pattern,
- int __cflags));
-
-extern int __regexec _RE_ARGS ((const regex_t *__preg,
- const char *__string, size_t __nmatch,
- regmatch_t __pmatch[], int __eflags));
-extern int regexec _RE_ARGS ((const regex_t *__preg,
- const char *__string, size_t __nmatch,
- regmatch_t __pmatch[], int __eflags));
-
-extern size_t __regerror _RE_ARGS ((int __errcode, const regex_t *__preg,
- char *__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 _RE_ARGS ((regex_t *__preg));
-extern void regfree _RE_ARGS ((regex_t *__preg));
+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],
+ int __eflags);
+
+extern size_t regerror (int __errcode, const regex_t *__preg,
+ char *__errbuf, size_t __errbuf_size);
+
+extern void regfree (regex_t *__preg);
#ifdef __cplusplus