jsonquery

package

v0.0.0-...-34b2b92 Latest Latest Go to latest Published: Jun 23, 2022 License: MIT Imports: 11 Imported by: 0

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Repository

github.com/zhangdapeng520/zdpgo_xpath

Documentation ¶

Index ¶

Variables
type Node
type NodeNavigator
- func CreateXPathNavigator(top *Node) *NodeNavigator
type NodeType

Constants ¶

This section is empty.

Variables ¶

View Source

var DisableSelectorCache = false

DisableSelectorCache will disable caching for the query selector if value is true.

View Source

var SelectorCacheMaxEntries = 50

SelectorCacheMaxEntries allows how many selector object can be caching. Default is 50. Will disable caching if SelectorCacheMaxEntries <= 0.

Functions ¶

This section is empty.

Types ¶

type Node ¶

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

	Type NodeType
	Data string
	// 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 is like QueryAll but will panics if `expr` cannot be parsed.

func FindOne ¶

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

FindOne is like Query but will panics if `expr` cannot be parsed.

func LoadURL ¶

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

LoadURL loads the JSON document from the specified URL.

func Parse ¶

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

Parse JSON document.

func Query ¶

func Query(top *Node, expr string) (*Node, error)

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

func QueryAll ¶

func QueryAll(top *Node, expr string) ([]*Node, error)

QueryAll searches the Node that matches by the specified XPath expr. Return an error if the expression `expr` cannot be parsed.

func QuerySelector ¶

func QuerySelector(top *Node, selector *xpath.Expr) *Node

QuerySelector returns the first matched XML Node by the specified XPath selector.

func QuerySelectorAll ¶

func QuerySelectorAll(top *Node, selector *xpath.Expr) []*Node

QuerySelectorAll searches all of the Node that matches the specified XPath selectors.

func (*Node) ChildNodes ¶

func (n *Node) ChildNodes() []*Node

ChildNodes gets all child nodes of the node.

func (*Node) InnerText ¶

func (n *Node) InnerText() string

InnerText gets the value of the node and all its child nodes.

func (*Node) OutputXML ¶

func (n *Node) OutputXML() string

OutputXML prints the XML string.

func (*Node) SelectElement ¶

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

SelectElement finds the first of child elements with the specified name.

type NodeNavigator ¶

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

NodeNavigator is for navigating JSON document.

func CreateXPathNavigator ¶

func CreateXPathNavigator(top *Node) *NodeNavigator

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

func (*NodeNavigator) Copy ¶

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

func (*NodeNavigator) Current ¶

func (a *NodeNavigator) Current() *Node

func (*NodeNavigator) LocalName ¶

func (a *NodeNavigator) LocalName() string

func (*NodeNavigator) MoveTo ¶

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

func (*NodeNavigator) MoveToChild ¶

func (a *NodeNavigator) MoveToChild() bool

func (*NodeNavigator) MoveToFirst ¶

func (a *NodeNavigator) MoveToFirst() bool

func (*NodeNavigator) MoveToNext ¶

func (a *NodeNavigator) MoveToNext() bool

func (*NodeNavigator) MoveToNextAttribute ¶

func (x *NodeNavigator) MoveToNextAttribute() bool

func (*NodeNavigator) MoveToParent ¶

func (a *NodeNavigator) MoveToParent() bool

func (*NodeNavigator) MoveToPrevious ¶

func (a *NodeNavigator) MoveToPrevious() bool

func (*NodeNavigator) MoveToRoot ¶

func (a *NodeNavigator) MoveToRoot()

func (*NodeNavigator) NodeType ¶

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

func (*NodeNavigator) Prefix ¶

func (a *NodeNavigator) Prefix() string

func (*NodeNavigator) String ¶

func (a *NodeNavigator) String() string

func (*NodeNavigator) Value ¶

func (a *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
	// ElementNode is an element.
	ElementNode
	// TextNode is the text content of a node.
	TextNode
)

Source Files ¶

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