token

type Attribute struct {
	Offset int
	Name   string
	Value  string
}

type Character struct {
	Offset int
	Data   rune
}

type DocumentType struct {
	Offset int
}

type EndTag struct {
	Offset int
	Name   string
}

type StartTag struct {
	Offset     int
	Name       string
	Attributes []Attribute
	Closed     bool
}

type Token interface {
	VisitToken(TokenVisitor)
}

type TokenVisitor struct {
	DocumentType func(DocumentType)
	StartTag     func(StartTag)
	EndTag       func(EndTag)
	Character    func(Character)
}