w3cdom

type Attr interface {
	Namespace() string
	Key() string
	Value() string
}

type ComputedStyles interface {
	GetPropertyValue(string) style.Property
	Styles() *style.PropertyMap
}

type NamedNodeMap interface {
	Length() int
	Item(int) Attr
	GetNamedItem(string) Attr
}

type Node interface {
	NodeType() html.NodeType        // type of the underlying HTML node (ElementNode, TextNode, etc.)
	NodeName() string               // node name output depends on the node's type
	NodeValue() string              // node value output depends on the node's type
	HasAttributes() bool            // check for existence of attributes
	ParentNode() Node               // get the parent node, if any
	HasChildNodes() bool            // check for existende of sub-nodes
	ChildNodes() NodeList           // get a list of all children-nodes
	Children() NodeList             // get a list of element child-nodes
	FirstChild() Node               // get the first children-node
	NextSibling() Node              // get the Node's next sibling or nil if last
	Attributes() NamedNodeMap       // get all attributes of a node
	ComputedStyles() ComputedStyles // get computed CSS styles
	TextContent() (string, error)   // get text from node and all descendents
}

type NodeList interface {
	Length() int
	Item(int) Node
	String() string
}