Function get_preferred_languages

gettext.c:50–67

* Guess the user's preferred languages from the value in LANGUAGE environment * variable and LC_MESSAGES locale category if NO_GETTEXT is not defined. * * The result can be a colon-separated list like "ko:ja:en". */

 * The result can be a colon-separated list like "ko:ja:en".
 */
const char *get_preferred_languages(void)
{
	const char *retval;

	retval = getenv("LANGUAGE");
	if (retval && *retval)
		return retval;

#ifndef NO_GETTEXT
	retval = setlocale(LC_MESSAGES, NULL);
	if (retval && *retval &&
		strcmp(retval, "C") &&
		strcmp(retval, "POSIX"))
		return retval;
#endif

	return NULL;
}

#ifndef NO_GETTEXT
__attribute__((format (printf, 1, 2)))