xmlquery

Documentation

Overview

Package xmlquery provides extract data from XML documents using XPath expression.

Index

• func FindEach(top *Node, expr string, cb func(int, *Node))
• type Node
  • func Find(top *Node, expr string) []*Node
  • func FindOne(top *Node, expr string) *Node
  • func LoadURL(url string) (*Node, error)
  • func Parse(r io.Reader) (*Node, error)
  • func (n *Node) InnerText() string
  • func (n *Node) OutputXML(self bool) string
  • func (n *Node) SelectAttr(name string) string
  • func (n *Node) SelectElement(name string) *Node
  • func (n *Node) SelectElements(name string) []*Node
• type NodeNavigator
  • func CreateXPathNavigator(top *Node) *NodeNavigator
  • func (x *NodeNavigator) Copy() xpath.NodeNavigator
  • func (x *NodeNavigator) Current() *Node
  • func (x *NodeNavigator) LocalName() string
  • func (x *NodeNavigator) MoveTo(other xpath.NodeNavigator) bool
  • func (x *NodeNavigator) MoveToChild() bool
  • func (x *NodeNavigator) MoveToFirst() bool
  • func (x *NodeNavigator) MoveToNext() bool
  • func (x *NodeNavigator) MoveToNextAttribute() bool
  • func (x *NodeNavigator) MoveToParent() bool
  • func (x *NodeNavigator) MoveToPrevious() bool
  • func (x *NodeNavigator) MoveToRoot()
  • func (x *NodeNavigator) NodeType() xpath.NodeType
  • func (x *NodeNavigator) Prefix() string
  • func (x *NodeNavigator) String() string
  • func (x *NodeNavigator) Value() string
• type NodeType

Functions

func FindEach

func FindEach(top *Node, expr string, cb func(int, *Node))

FindEach searches the html.Node and calls functions cb.

Types

type Node

type Node struct {
	Parent, FirstChild, LastChild, PrevSibling, NextSibling *Node

	Type         NodeType
	Data         string
	Prefix       string
	NamespaceURI string
	Attr         []xml.Attr
	// contains filtered or unexported fields
}

A Node consists of a NodeType and some Data (tag name for element nodes, content for text) and are part of a tree of Nodes.

func Find

func Find(top *Node, expr string) []*Node

Find searches the Node that matches by the specified XPath expr.

func FindOne

func FindOne(top *Node, expr string) *Node

FindOne searches the Node that matches by the specified XPath expr, and returns first element of matched.

func LoadURL

func LoadURL(url string) (*Node, error)

LoadURL loads the XML document from the specified URL.

func Parse

func Parse(r io.Reader) (*Node, error)

Parse returns the parse tree for the XML from the given Reader.

func (*Node) InnerText

func (n *Node) InnerText() string

InnerText returns the text between the start and end tags of the object.

func (*Node) OutputXML

func (n *Node) OutputXML(self bool) string

OutputXML returns the text that including tags name.

func (*Node) SelectAttr

func (n *Node) SelectAttr(name string) string

SelectAttr returns the attribute value with the specified name.

func (*Node) SelectElement

func (n *Node) SelectElement(name string) *Node

SelectElement finds child elements with the specified name.

func (*Node) SelectElements

func (n *Node) SelectElements(name string) []*Node

SelectElements finds child elements with the specified name.

type NodeNavigator

type NodeNavigator struct {
	// contains filtered or unexported fields
}

func CreateXPathNavigator

func CreateXPathNavigator(top *Node) *NodeNavigator

CreateXPathNavigator creates a new xpath.NodeNavigator for the specified html.Node.

func (*NodeNavigator) Copy

func (x *NodeNavigator) Copy() xpath.NodeNavigator

func (*NodeNavigator) Current

func (x *NodeNavigator) Current() *Node

func (*NodeNavigator) LocalName

func (x *NodeNavigator) LocalName() string

func (*NodeNavigator) MoveTo

func (x *NodeNavigator) MoveTo(other xpath.NodeNavigator) bool

func (*NodeNavigator) MoveToChild

func (x *NodeNavigator) MoveToChild() bool

func (*NodeNavigator) MoveToFirst

func (x *NodeNavigator) MoveToFirst() bool

func (*NodeNavigator) MoveToNext

func (x *NodeNavigator) MoveToNext() bool

func (*NodeNavigator) MoveToNextAttribute

func (x *NodeNavigator) MoveToNextAttribute() bool

func (*NodeNavigator) MoveToParent

func (x *NodeNavigator) MoveToParent() bool

func (*NodeNavigator) MoveToPrevious

func (x *NodeNavigator) MoveToPrevious() bool

func (*NodeNavigator) MoveToRoot

func (x *NodeNavigator) MoveToRoot()

func (*NodeNavigator) NodeType

func (x *NodeNavigator) NodeType() xpath.NodeType

func (*NodeNavigator) Prefix

func (x *NodeNavigator) Prefix() string

func (*NodeNavigator) String

func (x *NodeNavigator) String() string

func (*NodeNavigator) Value

func (x *NodeNavigator) Value() string

type NodeType

type NodeType uint

A NodeType is the type of a Node.

const (
	// DocumentNode is a document object that, as the root of the document tree,
	// provides access to the entire XML document.
	DocumentNode NodeType = iota
	// DeclarationNode is the document type declaration, indicated by the following
	// tag (for example, <!DOCTYPE...> ).
	DeclarationNode
	// ElementNode is an element (for example, <item> ).
	ElementNode
	// TextNode is the text content of a node.
	TextNode
	// CommentNode a comment (for example, <!-- my comment --> ).
	CommentNode
)