Go by Example: XML

Go offers built-in support for XML and XML-like formats with the `encoding.xml` package.
	package main
	import ( "encoding/xml" "fmt" )
This type will be mapped to XML. Similarly to the JSON examples, field tags contain directives for the encoder and decoder. Here we use some special features of the XML package: the `XMLName` field name dictates the name of the XML element representing this struct; `id,attr` means that the `Id` field is an XML attribute rather than a nested element.	type Plant struct { XMLName xml.Name `xml:"plant"` Id int `xml:"id,attr"` Name string `xml:"name"` Origin []string `xml:"origin"` }
	func (p Plant) String() string { return fmt.Sprintf("Plant id=%v, name=%v, origin=%v", p.Id, p.Name, p.Origin) }
	func main() { coffee := &Plant{Id: 27, Name: "Coffee"} coffee.Origin = []string{"Ethiopia", "Brazil"}
Emit XML representing our plant; using `MarshalIndent` to produce a more human-readable output.	out, _ := xml.MarshalIndent(coffee, " ", " ") fmt.Println(string(out))
To add a generic XML header to the output, append it explicitly.	fmt.Println(xml.Header + string(out))
Use `Unmarhshal` to parse a stream of bytes with XML into a data structure. If the XML is malformed or cannot be mapped onto Plant, a descriptive error will be returned.	var p Plant if err := xml.Unmarshal(out, &p); err != nil { panic(err) } fmt.Println(p)
	tomato := &Plant{Id: 81, Name: "Tomato"} tomato.Origin = []string{"Mexico", "California"}
The `parent>child>plant` field tag tells the encoder to nest all `plant`s under `<parent><child>...`	type Nesting struct { XMLName xml.Name `xml:"nesting"` Plants []*Plant `xml:"parent>child>plant"` }
	nesting := &Nesting{} nesting.Plants = []*Plant{coffee, tomato}
	out, _ = xml.MarshalIndent(nesting, " ", " ") fmt.Println(string(out)) }

$ go run xml.go
 <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
 </plant>
<?xml version="1.0" encoding="UTF-8"?>
 <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
 </plant>
Plant id=27, name=Coffee, origin=[Ethiopia Brazil]
 <nesting>
   <parent>
     <child>
       <plant id="27">
         <name>Coffee</name>
         <origin>Ethiopia</origin>
         <origin>Brazil</origin>
       </plant>
       <plant id="81">
         <name>Tomato</name>
         <origin>Mexico</origin>
         <origin>California</origin>
       </plant>
     </child>
   </parent>
 </nesting>

Next example: Time.