/* 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.
- Copyright (C) 1985, 89, 90, 91, 92, 93, 95 Free Software Foundation, Inc.
- 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.
+ 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 distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
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. */
+ 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
-#ifndef __REGEXP_LIBRARY_H__
-#define __REGEXP_LIBRARY_H__
+/* Allow the use in C++ code. */
+#ifdef __cplusplus
+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)
+#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>
+# 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
+ 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 reg_syntax_t;
+typedef unsigned long int reg_syntax_t;
/* 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 (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.
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)
+
/* 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_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_UNMATCHED_RIGHT_PAREN_ORD)
+ (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_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS)
+
+#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))
#define RE_SYNTAX_POSIX_AWK \
- (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS)
+ (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \
+ | RE_INTERVALS | RE_NO_GNU_OPS)
#define RE_SYNTAX_GREP \
(RE_BK_PLUS_QM | RE_CHAR_CLASSES \
(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
+# undef RE_DUP_MAX
#endif
-#define RE_DUP_MAX ((1 << 15) - 1)
+/* If sizeof(int) == 2, then ((1 << 15) - 1) overflows. */
+#define RE_DUP_MAX (0x7fff)
/* POSIX `cflags' bits (i.e., information for `regcomp'). */
`re_error_msg' table in regex.c. */
typedef enum
{
+#if (_XOPEN_SOURCE - 0) == 500
+ REG_NOSYS = -1, /* This will never happen for this implementation. */
+#endif
+
REG_NOERROR = 0, /* Success. */
REG_NOMATCH, /* Didn't find a match (for regexec). */
private to the regex routines. */
#ifndef RE_TRANSLATE_TYPE
-#define RE_TRANSLATE_TYPE char *
+# define RE_TRANSLATE_TYPE char *
#endif
struct re_pattern_buffer
unsigned char *buffer;
/* Number of bytes to which `buffer' points. */
- unsigned long allocated;
+ unsigned long int allocated;
/* Number of bytes actually used in `buffer'. */
- unsigned long used;
+ unsigned long int used;
/* Syntax setting with which the pattern was compiled. */
reg_syntax_t syntax;
`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
+# define RE_NREGS 30
#endif
#if __STDC__
-#define _RE_ARGS(args) args
+# define _RE_ARGS(args) args
#else /* not __STDC__ */
-#define _RE_ARGS(args) ()
+# define _RE_ARGS(args) ()
#endif /* not __STDC__ */
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, int length,
+ _RE_ARGS ((const char *pattern, size_t length,
struct re_pattern_buffer *buffer));
unsigned num_regs, regoff_t *starts, regoff_t *ends));
#ifdef _REGEX_RE_COMP
+# ifndef _CRAY
/* 4.2 bsd compatibility. */
extern char *re_comp _RE_ARGS ((const char *));
extern int re_exec _RE_ARGS ((const char *));
+# endif
#endif
/* POSIX compatibility. */
size_t errbuf_size));
extern void regfree _RE_ARGS ((regex_t *preg));
-#endif /* not __REGEXP_LIBRARY_H__ */
+
+#ifdef __cplusplus
+}
+#endif /* C++ */
+
+#endif /* regex.h */
\f
/*
Local variables:
projects / gnulib.git / blobdiff