buf.WriteString(s.prefix)
	buf.WriteString(b.raw)
	buf.WriteByte('\n')
}

func newHR(p *parseState, s line) (line, bool) {
	if isHR(s) {
		p.doneBlock(&ThematicBreak{Position{p.lineno, p.lineno}, s.string()})
		return line{}, true
	}
	return s, false
}

func isHR(s line) bool {
	t := s
	t.trimSpace(0, 3, false)
	switch c := t.peek(); c {
	case '-', '_', '*':
		for i := 0; ; i++ {
			if !t.trim(c) {

		{name: "I8", fn: func() { i1 = eight8I }},
		{name: "I16", fn: func() { i1 = zero16I }},
		{name: "I32", fn: func() { i1 = zero32I }},
		{name: "I64", fn: func() { i1 = zero64I }},
		{name: "Istr", fn: func() { i1 = zerostrI }},
		{name: "Islice", fn: func() { i1 = zerosliceI }},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			n := testing.AllocsPerRun(1000, test.fn)