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/* Language code of current locale.
Copyright (C) 2009-2022 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
This file is free software.
It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
You can redistribute it and/or modify it under either
- the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version, or
- 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, or
- the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
This file 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
Lesser General Public License and the GNU General Public License
for more details.
You should have received a copy of the GNU Lesser General Public
License and of the GNU General Public License along with this
program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "unicase.h"
#include <locale.h>
#include <string.h>
#include "localename.h"
#include "unicase/locale-languages.h"
const char *
uc_locale_language (void)
{
const char *locale_name = gl_locale_name (LC_CTYPE, "LC_CTYPE");
const char *p;
/* Find the end of the language portion. */
p = locale_name;
while (*p != '\0' && *p != '_' && *p != '.' && *p != '@')
p++;
/* Return a statically allocated pointer to the language portion, so that the
caller of this function does not need to free() the result.
We could use a dynamically built unification table. But given that the
set of possible languages is small, it is easier (and excludes ENOMEM
error conditions) to allocate the unification table statically. */
if (p != locale_name)
{
const char *language =
uc_locale_languages_lookup (locale_name, p - locale_name);
if (language != NULL)
return language;
}
return "";
}
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