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/*
* User language lookup for generic POSIX platforms
*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include "misc/language.h"
#include "mpv_talloc.h"
#include <stddef.h>
char **mp_get_user_langs(void)
{
static const char *const list[] = {
"LC_ALL",
"LC_MESSAGES",
"LANG",
NULL
};
size_t nb = 0;
char **ret = NULL;
bool has_c = false;
// Prefer anything we get from LANGUAGE first
for (const char *langList = getenv("LANGUAGE"); langList && *langList;) {
size_t len = strcspn(langList, ":");
MP_TARRAY_GROW(NULL, ret, nb);
ret[nb++] = talloc_strndup(ret, langList, len);
langList += len;
while (*langList == ':')
langList++;
}
// Then, the language components of other relevant locale env vars
for (int i = 0; list[i]; i++) {
const char *envval = getenv(list[i]);
if (envval && *envval) {
size_t len = strcspn(envval, ".@");
if (!strncmp("C", envval, len)) {
has_c = true;
continue;
}
MP_TARRAY_GROW(NULL, ret, nb);
ret[nb++] = talloc_strndup(ret, envval, len);
}
}
if (has_c && !nb) {
MP_TARRAY_GROW(NULL, ret, nb);
ret[nb++] = talloc_strdup(ret, "en");
}
// Null-terminate the list
MP_TARRAY_APPEND(NULL, ret, nb, NULL);
return ret;
}
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