Splitter in go?!?

jsontest.go

package main

import (
	"encoding/json"
	"fmt"
)

type DatetimeCondition struct {
	From *float32
	To   *float32
}

type Conditions struct {
	Device   []string
	DateTime []DatetimeCondition
	OS       []string
}

type Split struct {
	Redirect   string
	Conditions Conditions
}

func main() {
	b := []byte(`{"redirect": "http://www.apple.com/iphone/", "conditions": {"device": ["iPhone"], "datetime": [{"to": null, "from": 1359196200.0}]}}`)

	var f Split
	err := json.Unmarshal(b, &f)
	if err != nil {
		panic(err)
	}
	println(f.Redirect)
	println(f.Conditions.Device[0])
	fmt.Printf("%f\n", *f.Conditions.DateTime[0].From)
	println(f.Conditions.DateTime[0].From)
	if f.Conditions.DateTime[0].To == nil {
		println("No to datetime")
	}
	if f.Conditions.OS == nil {
		println("No OS")
	}
}