CBXVirtualIoFileSystem::ValidatePathString

function ValidatePathString($path)
{
	if(mb_strlen($path) > 4096)
	{
		return false;
	}

	if(!static::ValidateCommon($path))
	{
		return false;
	}

	return (preg_match("#^([a-z]:)?/([^x01-x1F".preg_quote(self::invalidChars, "#")."]+/?)*$#isD", $path) > 0);
}