package main
import (
"encoding/xml"
"fmt"
)
// Plant XML ga moslanadi. JSON dagi kabi, taglar encoder/decoder uchun ko‘rsatmalar beradi.
// Maxsus xususiyatlar: XMLName — struct'ni ifodalovchi XML element nomi;
// id,attr — Id maydoni nested element emas, atribut bo‘lishini bildiradi.
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"}
// MarshalIndent — odam o‘qishi uchun qulay (indented) XML chiqarish
out, _ := xml.MarshalIndent(coffee, " ", " ")
fmt.Println(string(out))
// XML sarlavhasini qo‘shish — qo‘shimcha ravishda oldiga yozamiz
fmt.Println(xml.Header + string(out))
// Unmarshal — bayt oqimidan XML ni tuzilma (struct) ga parse qilish
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"}
// parent>child>plant — barcha plant elementlarini <parent><child>... ichida joylashtirish
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))
}
Terminalda bajarish:
$ 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>