Golang XML stream parser

parse-xml.go

package main

// https://github.com/dps/go-xml-parse/blob/master/go-xml-parse.go

import (
	"fmt"
	"os"
	"encoding/xml"
)


type Offer struct {
	Name string `xml:"name"`
	Url string `xml:"url"`
	Price string `xml:"price"`
	Category string `xml:"categoryId"`
	Picture string `xml:"picture"`
	Author string `xml:"author"`
	publisher string `xml:"publisher"`
	series string `xml:"series"`
	year string `xml:"year"`
	ISBN string `xml:"ISBN"`
	binding string `xml:"binding"`
	page_extent string `xml:"page_extent"`
	downloadable string `xml:"downloadable"`
}


func main() {

	xmlFile, err := os.Open("2.xml")
	if err != nil {
		fmt.Println("Error opening file:", err)
		return
	}
	defer xmlFile.Close()

	decoder := xml.NewDecoder(xmlFile)
	total := 0
	var inElement string
	for {
		// Read tokens from the XML document in a stream.
		t, _ := decoder.Token()
		if t == nil {
			break
		}
		// Inspect the type of the token just read.
		switch se := t.(type) {
		case xml.StartElement:
			// If we just read a StartElement token
			inElement = se.Name.Local
			// ...and its name is "page"
			if inElement == "offer" {
				var offer Offer
				// decode a whole chunk of following XML into the
				// variable p which is a Page (se above)
				decoder.DecodeElement(&offer, &se)

				// fmt.Println(offer.Url)
				// Do some stuff with the page.
				total++
			}
		default:
		}
		

	}

	fmt.Printf("Total: %d \n", total)
}

if inElement == "offer" {

}

What If I have a sub element "today" under "offer", how do I loop through it?