GitHub - sbabiv/xml2map: XML to MAP converter written Golang (original) (raw)

xml2map

XML to MAP converter written Golang

Sometimes there is a need for the representation of previously unknown structures. Such a universal representation is usually a string in the form of JSON, XML, or the structure of data map. similar to the map[string]interface{} or map[interface{}]interface{}.

This is a converter from the old XML format to map[string]interface{} Golang

For example, the map[string]interface{} can be used as a universal type in template generation. Golang "text/template" and etc.

Getting started

1. install

go get -u github.com/sbabiv/xml2map

Or, using dep:

dep ensure -add github.com/sbabiv/xml2map

2. use it

func main() { data := <container uid="FA6666D9-EC9F-4DA3-9C3D-4B2460A4E1F6" lifetime="2019-10-10T18:00:11"> <cats> <cat> <id>CDA035B6-D453-4A17-B090-84295AE2DEC5</id> <name>moritz</name> <age>7</age> <items> <n>1293</n> <n>1255</n> <n>1257</n> </items> </cat> <cat> <id>1634C644-975F-4302-8336-1EF1366EC6A4</id> <name>oliver</name> <age>12</age> </cat> <dog color="gray">hello</dog> </cats> <color>white</color> <city>NY</city> </container>

decoder := xml2map.NewDecoder(strings.NewReader(data))
result, err := decoder.Decode()

if err != nil {
    fmt.Printf("%v\n", err)
} else {
    fmt.Printf("%v\n", result)
}

v := result["container"].
    (map[string]interface{})["cats"].
        (map[string]interface{})["cat"].
            ([]map[string]interface{})[0]["items"].
                (map[string]interface{})["n"].([]string)[1]
                
fmt.Printf("n[1]: %v\n", v)

}

if you want to use your custom prefixes use the

NewDecoderWithPrefix(reader io.Reader, attrPrefix, textPrefix string) *Decoder

Go Playground

Output

map[container:map[@uid:FA6666D9-EC9F-4DA3-9C3D-4B2460A4E1F6 @lifetime:2019-10-10T18:00:11 cats:map[cat:[map[id:CDA035B6-D453-4A17-B090-84295AE2DEC5 name:moritz age:7 items:map[n:[1293 1255 1257]]] map[id:1634C644-975F-4302-8336-1EF1366EC6A4 name:oliver age:12]] dog:map[@color:gray #text:hello]] color:white city:NY]]

result: 1255

Benchmark

$ go test -bench=. -benchmem goos: darwin goarch: amd64 pkg: github.com/sbabiv/xml2map BenchmarkDecoder-8 50000 29773 ns/op 15032 B/op 261 allocs/op PASS ok github.com/sbabiv/xml2map 1.805s

Licence

MIT

Author

Babiv Sergey