/* Extended regular expression matching and search library.
- Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2002-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
- 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.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ The GNU C Library 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.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#ifndef _REGEX_INTERNAL_H
#define _REGEX_INTERNAL_H 1
#include <assert.h>
#include <ctype.h>
-#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#ifdef _LIBC
-# include <langinfo.h>
-#else
-# include "localcharset.h"
-#endif
-#if defined HAVE_LOCALE_H || defined _LIBC
-# include <locale.h>
-#endif
-
+#include <langinfo.h>
+#include <locale.h>
#include <wchar.h>
#include <wctype.h>
+#include <stdbool.h>
#include <stdint.h>
-#if defined _LIBC
+
+#ifdef _LIBC
# include <bits/libc-lock.h>
+# define lock_define(name) __libc_lock_define (, name)
+# define lock_init(lock) (__libc_lock_init (lock), 0)
+# define lock_fini(lock) 0
+# define lock_lock(lock) __libc_lock_lock (lock)
+# define lock_unlock(lock) __libc_lock_unlock (lock)
+#elif defined GNULIB_LOCK
+# include "glthread/lock.h"
+ /* Use gl_lock_define if empty macro arguments are known to work.
+ Otherwise, fall back on less-portable substitutes. */
+# if ((defined __GNUC__ && !defined __STRICT_ANSI__) \
+ || (defined __STDC_VERSION__ && 199901L <= __STDC_VERSION__))
+# define lock_define(name) gl_lock_define (, name)
+# elif USE_POSIX_THREADS
+# define lock_define(name) pthread_mutex_t name;
+# elif USE_PTH_THREADS
+# define lock_define(name) pth_mutex_t name;
+# elif USE_SOLARIS_THREADS
+# define lock_define(name) mutex_t name;
+# elif USE_WINDOWS_THREADS
+# define lock_define(name) gl_lock_t name;
+# else
+# define lock_define(name)
+# endif
+# define lock_init(lock) glthread_lock_init (&(lock))
+# define lock_fini(lock) glthread_lock_destroy (&(lock))
+# define lock_lock(lock) glthread_lock_lock (&(lock))
+# define lock_unlock(lock) glthread_lock_unlock (&(lock))
+#elif defined GNULIB_PTHREAD
+# include <pthread.h>
+# define lock_define(name) pthread_mutex_t name;
+# define lock_init(lock) pthread_mutex_init (&(lock), 0)
+# define lock_fini(lock) pthread_mutex_destroy (&(lock))
+# define lock_lock(lock) pthread_mutex_lock (&(lock))
+# define lock_unlock(lock) pthread_mutex_unlock (&(lock))
#else
-# define __libc_lock_init(NAME) do { } while (0)
-# define __libc_lock_lock(NAME) do { } while (0)
-# define __libc_lock_unlock(NAME) do { } while (0)
+# define lock_define(name)
+# define lock_init(lock) 0
+# define lock_fini(lock) ((void) 0)
+ /* The 'dfa' avoids an "unused variable 'dfa'" warning from GCC. */
+# define lock_lock(lock) ((void) dfa)
+# define lock_unlock(lock) ((void) 0)
#endif
/* In case that the system doesn't have isblank(). */
# ifdef _LIBC
# undef gettext
# define gettext(msgid) \
- INTUSE(__dcgettext) (_libc_intl_domainname, msgid, LC_MESSAGES)
+ __dcgettext (_libc_intl_domainname, msgid, LC_MESSAGES)
# endif
#else
# define gettext(msgid) (msgid)
# define gettext_noop(String) String
#endif
-/* For loser systems without the definition. */
-#ifndef SIZE_MAX
-# define SIZE_MAX ((size_t) -1)
-#endif
-
-#if (defined MB_CUR_MAX && HAVE_LOCALE_H && HAVE_WCTYPE_H && HAVE_ISWCTYPE && HAVE_WCSCOLL) || _LIBC
+#if (defined MB_CUR_MAX && HAVE_WCTYPE_H && HAVE_ISWCTYPE) || _LIBC
# define RE_ENABLE_I18N
#endif
# define BE(expr, val) __builtin_expect (expr, val)
#else
# define BE(expr, val) (expr)
-# ifdef _LIBC
-# define inline
-# endif
#endif
/* Number of ASCII characters. */
/* Rename to standard API for using out of glibc. */
#ifndef _LIBC
+# undef __wctype
+# undef __iswctype
# define __wctype wctype
# define __iswctype iswctype
# define __btowc btowc
+# define __mbrtowc mbrtowc
# define __wcrtomb wcrtomb
# define __regfree regfree
# define attribute_hidden
#endif /* not _LIBC */
-#if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
-# define __attribute(arg) __attribute__ (arg)
-#else
-# define __attribute(arg)
+#if __GNUC__ < 3 + (__GNUC_MINOR__ < 1)
+# define __attribute__(arg)
#endif
typedef __re_idx_t Idx;
+#ifdef _REGEX_LARGE_OFFSETS
+# define IDX_MAX (SIZE_MAX - 2)
+#else
+# define IDX_MAX INT_MAX
+#endif
/* Special return value for failure to match. */
#define REG_MISSING ((Idx) -1)
# if BITSET_WORD_BITS <= SBC_MAX
# error "Invalid SBC_MAX"
# endif
-#elif BITSET_WORD_MAX == (0xffffffff + 2) * 0xffffffff
-/* Work around a bug in 64-bit PGC (before version 6.1-2), where the
- preprocessor mishandles large unsigned values as if they were signed. */
-# define BITSET_WORD_BITS 64
#else
# error "Add case for new bitset_word_t size"
#endif
Idx idx; /* for BACK_REF */
re_context_type ctx_type; /* for ANCHOR */
} opr;
-#if __GNUC__ >= 2 && !__STRICT_ANSI__
+#if __GNUC__ >= 2 && !defined __STRICT_ANSI__
re_token_type_t type : 8;
#else
re_token_type_t type;
typedef struct re_dfa_t re_dfa_t;
#ifndef _LIBC
-# if defined __i386__ && !defined __EMX__
-# define internal_function __attribute ((regparm (3), stdcall))
-# else
-# define internal_function
-# endif
+# define internal_function
#endif
+#ifndef NOT_IN_libc
static reg_errcode_t re_string_realloc_buffers (re_string_t *pstr,
Idx new_buf_len)
internal_function;
-#ifdef RE_ENABLE_I18N
+# ifdef RE_ENABLE_I18N
static void build_wcs_buffer (re_string_t *pstr) internal_function;
static reg_errcode_t build_wcs_upper_buffer (re_string_t *pstr)
- internal_function;
-#endif /* RE_ENABLE_I18N */
+ internal_function;
+# endif /* RE_ENABLE_I18N */
static void build_upper_buffer (re_string_t *pstr) internal_function;
static void re_string_translate_buffer (re_string_t *pstr) internal_function;
static unsigned int re_string_context_at (const re_string_t *input, Idx idx,
int eflags)
- internal_function __attribute ((pure));
+ internal_function __attribute__ ((pure));
+#endif
#define re_string_peek_byte(pstr, offset) \
((pstr)->mbs[(pstr)->cur_idx + offset])
#define re_string_fetch_byte(pstr) \
#define re_string_skip_bytes(pstr,idx) ((pstr)->cur_idx += (idx))
#define re_string_set_index(pstr,idx) ((pstr)->cur_idx = (idx))
-#include <alloca.h>
+#if defined _LIBC || HAVE_ALLOCA
+# include <alloca.h>
+#endif
#ifndef _LIBC
# if HAVE_ALLOCA
# else
/* alloca is implemented with malloc, so just use malloc. */
# define __libc_use_alloca(n) 0
+# undef alloca
+# define alloca(n) malloc (n)
# endif
#endif
+#ifdef _LIBC
+# define MALLOC_0_IS_NONNULL 1
+#elif !defined MALLOC_0_IS_NONNULL
+# define MALLOC_0_IS_NONNULL 0
+#endif
+
#ifndef MAX
# define MAX(a,b) ((a) < (b) ? (b) : (a))
#endif
+#ifndef MIN
+# define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
#define re_malloc(t,n) ((t *) malloc ((n) * sizeof (t)))
#define re_realloc(p,t,n) ((t *) realloc (p, (n) * sizeof (t)))
re_token_t token;
- /* `node_idx' is the index in dfa->nodes, if `type' == 0.
- Otherwise `type' indicate the type of this node. */
+ /* 'node_idx' is the index in dfa->nodes, if 'type' == 0.
+ Otherwise 'type' indicate the type of this node. */
Idx node_idx;
};
typedef struct bin_tree_t bin_tree_t;
struct re_dfastate_t **trtable, **word_trtable;
unsigned int context : 4;
unsigned int halt : 1;
- /* If this state can accept `multi byte'.
+ /* If this state can accept "multi byte".
Note that we refer to multibyte characters, and multi character
- collating elements as `multi byte'. */
+ collating elements as "multi byte". */
unsigned int accept_mb : 1;
/* If this state has backreference node(s). */
unsigned int has_backref : 1;
re_bitset_ptr_t sb_char;
int str_tree_storage_idx;
- /* number of subexpressions `re_nsub' is in regex_t. */
+ /* number of subexpressions 're_nsub' is in regex_t. */
re_hashval_t state_hash_mask;
Idx init_node;
Idx nbackref; /* The number of backreference in this dfa. */
#ifdef DEBUG
char* re_str;
#endif
-#ifdef _LIBC
- __libc_lock_define (, lock)
-#endif
+ lock_define (lock)
};
#define re_node_set_init_empty(set) memset (set, '\0', sizeof (re_node_set))
} bracket_elem_t;
-/* Inline functions for bitset_t operation. */
+/* Functions for bitset_t operation. */
-static inline void
+static void
bitset_set (bitset_t set, Idx i)
{
set[i / BITSET_WORD_BITS] |= (bitset_word_t) 1 << i % BITSET_WORD_BITS;
}
-static inline void
+static void
bitset_clear (bitset_t set, Idx i)
{
set[i / BITSET_WORD_BITS] &= ~ ((bitset_word_t) 1 << i % BITSET_WORD_BITS);
}
-static inline bool
+static bool
bitset_contain (const bitset_t set, Idx i)
{
return (set[i / BITSET_WORD_BITS] >> i % BITSET_WORD_BITS) & 1;
}
-static inline void
+static void
bitset_empty (bitset_t set)
{
memset (set, '\0', sizeof (bitset_t));
}
-static inline void
+static void
bitset_set_all (bitset_t set)
{
memset (set, -1, sizeof (bitset_word_t) * (SBC_MAX / BITSET_WORD_BITS));
((bitset_word_t) 1 << SBC_MAX % BITSET_WORD_BITS) - 1;
}
-static inline void
+static void
bitset_copy (bitset_t dest, const bitset_t src)
{
memcpy (dest, src, sizeof (bitset_t));
}
-static inline void
+static void __attribute__ ((unused))
bitset_not (bitset_t set)
{
int bitset_i;
& ~set[BITSET_WORDS - 1]);
}
-static inline void
+static void __attribute__ ((unused))
bitset_merge (bitset_t dest, const bitset_t src)
{
int bitset_i;
dest[bitset_i] |= src[bitset_i];
}
-static inline void
+static void __attribute__ ((unused))
bitset_mask (bitset_t dest, const bitset_t src)
{
int bitset_i;
}
#ifdef RE_ENABLE_I18N
-/* Inline functions for re_string. */
-static inline int
-internal_function __attribute ((pure))
+/* Functions for re_string. */
+static int
+internal_function __attribute__ ((pure, unused))
re_string_char_size_at (const re_string_t *pstr, Idx idx)
{
int byte_idx;
return byte_idx;
}
-static inline wint_t
-internal_function __attribute ((pure))
+static wint_t
+internal_function __attribute__ ((pure, unused))
re_string_wchar_at (const re_string_t *pstr, Idx idx)
{
if (pstr->mb_cur_max == 1)
return (wint_t) pstr->wcs[idx];
}
+# ifndef NOT_IN_libc
static int
-internal_function __attribute ((pure))
+internal_function __attribute__ ((pure, unused))
re_string_elem_size_at (const re_string_t *pstr, Idx idx)
{
-# ifdef _LIBC
+# ifdef _LIBC
const unsigned char *p, *extra;
const int32_t *table, *indirect;
- int32_t tmp;
-# include <locale/weight.h>
+# include <locale/weight.h>
uint_fast32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
if (nrules != 0)
indirect = (const int32_t *) _NL_CURRENT (LC_COLLATE,
_NL_COLLATE_INDIRECTMB);
p = pstr->mbs + idx;
- tmp = findidx (&p);
+ findidx (&p, pstr->len - idx);
return p - pstr->mbs - idx;
}
else
-# endif /* _LIBC */
+# endif /* _LIBC */
return 1;
}
+# endif
#endif /* RE_ENABLE_I18N */
+#ifndef __GNUC_PREREQ
+# if defined __GNUC__ && defined __GNUC_MINOR__
+# define __GNUC_PREREQ(maj, min) \
+ ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+# else
+# define __GNUC_PREREQ(maj, min) 0
+# endif
+#endif
+
+#if __GNUC_PREREQ (3,4)
+# undef __attribute_warn_unused_result__
+# define __attribute_warn_unused_result__ \
+ __attribute__ ((__warn_unused_result__))
+#else
+# define __attribute_warn_unused_result__ /* empty */
+#endif
+
#endif /* _REGEX_INTERNAL_H */
projects / gnulib.git / blobdiff