// 从 string 取得输入
func ExampleNewDecoder1() {
src := "ORUGS4ZANFZSAYJAORSXG5BAON2HE2LOM4XA===="
reader := strings.NewReader(src)
dst := ""
decoder := base32.NewDecoder(base32.StdEncoding, reader)
// 使用一个很小的输出buffer，测试流式解码
buf := make([]byte, 2)
for {
n, err := decoder.Read(buf)
if err != nil {
break
}
if n == 0 {
break
}
dst += string(buf[0:n])
}
fmt.Print(dst)
// Output:
// this is a test string.
}
// Base32ExtDecode decodes base32 extended (RFC 4648) text to binary data.
func Base32ExtDecode(text []byte) (data []byte, err error) {
n := base32.HexEncoding.DecodedLen(len(text))
data = make([]byte, n)
decoder := base32.NewDecoder(base32.HexEncoding, bytes.NewBuffer(text))
if n, err = decoder.Read(data); err != nil {
n = 0
}
data = data[:n]
return
}
func main() {
flag.Parse()
var buffer bytes.Buffer
enc := base32.NewEncoder(encoding(), io.MultiWriter(os.Stdout, &buffer))
log.Println("encoding to stdout")
_, err := enc.Write(data())
enc.Close()
if err != nil {
log.Fatalf("failed encoding: %s", err)
}
println()
dec := base32.NewDecoder(encoding(), &buffer)
log.Println("decoding to stdout")
io.Copy(os.Stdout, dec)
}