case ':', '.':
			base = base[:i]
		}
	}
	// Trailing spaces in the last path element are ignored.
	for len(base) > 0 && base[len(base)-1] == ' ' {
		base = base[:len(base)-1]
	}
	if !isReservedBaseName(base) {
		return false
	}
	if len(base) == len(name) {
		return true
	}
	// The path element is a reserved name with an extension.
	// Some Windows versions consider this a reserved name,