fmt.Fprintln(w)
	w.Flush()

	// output:
	// a	b	c	d		.
	// 123	12345	1234567	123456789	.
	//
	//     a     b       c         d.
	//   123 12345 1234567 123456789.
}

func Example_elastic() {
	// Observe how the b's and the d's, despite appearing in the
	// second cell of each line, belong to different columns.
	w := tabwriter.NewWriter(os.Stdout, 0, 0, 1, '.', tabwriter.AlignRight|tabwriter.Debug)