/**
* Convert a locale designation to a normal form ll_Ssss_CC, where
* ll is language code
* Ssss is the script code, if specified
* CC is the country code, if specified
*
* @param string $locale locale code
* @param string $separator string to use to join locale parts
* @param bool $withScript include script if specified, always remove if false
*
* @return string normalized locale, or empty string on error
*/
public static function normalizeLocale($locale, $separator = '_', $withScript = true)
{
try {
$keys = Data::explodeLocale($locale);
$key = strtolower($keys['language']);
$key .= empty($keys['script']) || false === $withScript ? '' : $separator . ucfirst(strtolower($keys['script']));
$key .= empty($keys['territory']) ? '' : $separator . strtoupper($keys['territory']);
} catch (InvalidLocale $e) {
$key = '';
}
return $key;
}
