Traversing XML in GO

xml_traversing.go

package main

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

func main() {
    f, _ := os.Open("test_files/gpx1.1_with_all_fields.gpx")
    decoder := xml.NewDecoder(f)

    var err error
    var token xml.Token

    xmlPath := make([]string, 0, 20)

    for token, err = decoder.Token(); token != nil && err == nil; token, err = decoder.Token() {
        fmt.Println("Path:", xmlPath)
        switch typedToken := token.(type) {
            case xml.StartElement:
                xmlPath = append(xmlPath, typedToken.Name.Local)
                fmt.Println("StartElement:", typedToken.Name.Local)
                for i := 0; i < len(typedToken.Attr); i++ {
                    fmt.Println("   attr:", typedToken.Attr[i].Name, "->", typedToken.Attr[i].Value)
                }
            case xml.EndElement:
                xmlPath = xmlPath[0:len(xmlPath) - 1]
                fmt.Println("EndElement:", typedToken.Name.Local)
            case xml.CharData:
                fmt.Println("CharData:", string([]byte(typedToken)))
            case xml.Comment:
                fmt.Println("Comment:", string([]byte(typedToken)))
            case xml.ProcInst:
                fmt.Println("ProcInst:", string(typedToken.Inst))
            case xml.Directive:
                fmt.Println("Directive:", typedToken)
            default:
                fmt.Println("Something else")
        }
    }
    fmt.Println("Err:", err)
}