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.
/**
* Helper class for the language import tool.
*
* @package tool_langimport
* @copyright 2018 Université Rennes 2 {@link https://www.univ-rennes2.fr}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace tool_langimport;
use coding_exception;
defined('MOODLE_INTERNAL') || die;
/**
* Helper class for the language import tool.
*
* @copyright 2018 Université Rennes 2 {@link https://www.univ-rennes2.fr}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class locale {
/**
* Checks availability of locale on current operating system.
*
* @param string $langpackcode E.g.: en, es, fr, de.
* @return bool TRUE if the locale is available on OS.
* @throws coding_exception when $langpackcode parameter is a non-empty string.
*/
public function check_locale_availability(string $langpackcode) : bool {
global $CFG;
if (empty($langpackcode)) {
throw new coding_exception('Invalid language pack code in \\'.__METHOD__.'() call, only non-empty string is allowed');
}
// Fetch the correct locale based on ostype.
if ($CFG->ostype === 'WINDOWS') {
$stringtofetch = 'localewin';
} else {
$stringtofetch = 'locale';
}
// Store current locale.
$currentlocale = $this->set_locale(LC_ALL, 0);
$locale = get_string_manager()->get_string($stringtofetch, 'langconfig', $a = null, $langpackcode);
// Try to set new locale.
$return = $this->set_locale(LC_ALL, $locale);
// Restore current locale.
$this->set_locale(LC_ALL, $currentlocale);
// If $return is not equal to false, it means that setlocale() succeed to change locale.
return $return !== false;
}
/**
* Wrap for the native PHP function setlocale().
*
* @param int $category Specifying the category of the functions affected by the locale setting.
* @param string $locale E.g.: en_AU.utf8, en_GB.utf8, es_ES.utf8, fr_FR.utf8, de_DE.utf8.
* @return string|false Returns the new current locale, or FALSE on error.
*/
protected function set_locale(int $category = LC_ALL, string $locale = '0') {
return setlocale($category, $locale);
}
}