func BenchmarkIndexHard4(b *testing.B) {
	benchmarkIndexHard(b, []byte("<pre><b>hello</b><strong>world</strong></pre>"))
}

func BenchmarkLastIndexHard1(b *testing.B) { benchmarkLastIndexHard(b, []byte("<>")) }
func BenchmarkLastIndexHard2(b *testing.B) { benchmarkLastIndexHard(b, []byte("</pre>")) }