File::transliterateFileName

static function transliterateFileName(string $fileName): string
{
	$parts = pathinfo($fileName);
	$basename = $parts['filename'];
	$transliterateBaseName =  CUtil::translit(
		$basename,
		'ru',
		[
			'replace_space' => '_',
			'replace_other' => '_'
		]
	);

	return $transliterateBaseName . '.' . $parts['extension'];
}