/**
* Add locale to available locales.
*
* @param string|Locale $locale
*
* @return $this
*/
public function addLocale($locale)
{
// Get sanitized locale
$locale = Locale::sanitizeLocale($locale);
if (!isset($this->available[$locale])) {
$locale = new Locale($locale);
$this->available[$locale->getLocale()] = $locale;
}
return $this;
}
/**
* Sanitize given locale.
*
* Must be a simple locale without code set, currency or similar (e. g. "de_DE" or "de-de").
*
* @param string|Locale $locale
* @param string|Locale $default [optional] The default locale to return if $locale is invalid
*
* @return null|string
*/
public static function sanitizeLocale($locale, $default = null)
{
if ($locale instanceof Locale) {
return $locale->getLocale();
}
if ($default) {
$default = Locale::sanitizeLocale($default, null);
}
$locale = (string) $locale;
$locale = trim($locale);
if (!$locale || !preg_match("/^" . Locale::REGEX_LOCALE . "\$/ui", $locale, $found)) {
return $default;
}
$found['language'] = Text::toLower($found['language']);
$found['country'] = Text::toUpper($found['country']);
return sprintf("%s_%s", $found['language'], $found['country']);
}