port/locale/lmessages.c

	lmessages.c revision 6b5e5868e7ebf1aff3a5abd7d0c4ef0e5fbf3648
/*
 * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
 * 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 "lint.h"
#include <stddef.h>
#include "ldpart.h"
#include "lmessages.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);
}