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/* Language code of current locale.
Copyright (C) 2009-2017 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
This program is free software: you can redistribute it and/or
modify it under the terms of either:
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your
option) any later version.
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version.
or both in parallel, as here.
This program 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 for more details.
You should have received a copy of the GNU Lesser 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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