buf.WriteString("<hr />\n")
}

func (b *ThematicBreak) printMarkdown(buf *bytes.Buffer, s mdState) {
	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

}

func (c *rootBuilder) extend(p *parseState, s line) (line, bool) {
	panic("root extend")
}

var news = []func(*parseState, line) (line, bool){
	newQuote,
	newATXHeading,
	newSetextHeading,
	newHR,
	newListItem,
	newHTML,
	newFence,
	newPre,
}

func (s *line) peek() byte {
	if s.spaces > 0 {
		return ' '
	}
	if s.i >= len(s.text) {
		return 0
	}
	return s.text[s.i]