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freebsd/lib/libc/locale/lmessages.c
Andrey A. Chernov 76692b8025 Rewrite locale loading procedures, so any load failure will not affect
currently cached data.  It allows a number of nice things, like: removing
fallback code from single locale loading, remove memory leak when LC_CTYPE
data loaded again and again, efficient cache use, not only for
setlocale(locale1); setlocale(locale1), but for setlocale(locale1);
setlocale("C"); setlocale(locale1) too (i.e.  data file loaded only once).
2002-08-08 05:51:54 +00:00

92 lines
2.7 KiB
C

/*
* Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stddef.h>
#include "lmessages.h"
#include "ldpart.h"
#define LCMESSAGES_SIZE_FULL (sizeof(struct lc_messages_T) / sizeof(char *))
#define LCMESSAGES_SIZE_MIN \
(offsetof(struct lc_messages_T, yesstr) / sizeof(char *))
static char empty[] = "";
static const struct lc_messages_T _C_messages_locale = {
"^[yY]" , /* yesexpr */
"^[nN]" , /* noexpr */
"yes" , /* yesstr */
"no" /* nostr */
};
static struct lc_messages_T _messages_locale;
static int _messages_using_locale;
static char *_messages_locale_buf;
int
__messages_load_locale(const char *name)
{
int ret;
ret = __part_load_locale(name, &_messages_using_locale,
_messages_locale_buf, "LC_MESSAGES",
LCMESSAGES_SIZE_FULL, LCMESSAGES_SIZE_MIN,
(const char **)&_messages_locale);
if (ret == _LDP_LOADED) {
if (_messages_locale.yesstr == NULL)
_messages_locale.yesstr = empty;
if (_messages_locale.nostr == NULL)
_messages_locale.nostr = empty;
}
return (ret);
}
struct lc_messages_T *
__get_current_messages_locale(void)
{
return (_messages_using_locale
? &_messages_locale
: (struct lc_messages_T *)&_C_messages_locale);
}
#ifdef LOCALE_DEBUG
void
msgdebug() {
printf( "yesexpr = %s\n"
"noexpr = %s\n"
"yesstr = %s\n"
"nostr = %s\n",
_messages_locale.yesexpr,
_messages_locale.noexpr,
_messages_locale.yesstr,
_messages_locale.nostr
);
}
#endif /* LOCALE_DEBUG */