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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Keep in sync with ../base32/example_test.go.
package base64_test
import (
"encoding/base64"
"fmt"
"os"
)
func Example() {
msg := "Hello, 世界"
encoded := base64.StdEncoding.EncodeToString([]byte(msg))
fmt.Println(encoded)
decoded, err := base64.StdEncoding.DecodeString(encoded)
if err != nil {
fmt.Println("decode error:", err)
return
}
fmt.Println(string(decoded))
// Output:
// SGVsbG8sIOS4lueVjA==
// Hello, 世界
}
func ExampleEncoding_EncodeToString() {
data := []byte("any + old & data")
str := base64.StdEncoding.EncodeToString(data)
fmt.Println(str)
// Output:
// YW55ICsgb2xkICYgZGF0YQ==
}
func ExampleEncoding_Encode() {
data := []byte("Hello, world!")
dst := make([]byte, base64.StdEncoding.EncodedLen(len(data)))
base64.StdEncoding.Encode(dst, data)
fmt.Println(string(dst))
// Output:
// SGVsbG8sIHdvcmxkIQ==
}
func ExampleEncoding_DecodeString() {
str := "c29tZSBkYXRhIHdpdGggACBhbmQg77u/"
data, err := base64.StdEncoding.DecodeString(str)
if err != nil {
fmt.Println("error:", err)
return
}
fmt.Printf("%q\n", data)
// Output:
// "some data with \x00 and \ufeff"
}
func ExampleEncoding_Decode() {
str := "SGVsbG8sIHdvcmxkIQ=="
dst := make([]byte, base64.StdEncoding.DecodedLen(len(str)))
n, err := base64.StdEncoding.Decode(dst, []byte(str))
if err != nil {
fmt.Println("decode error:", err)
return
}
dst = dst[:n]
fmt.Printf("%q\n", dst)
// Output:
// "Hello, world!"
}
func ExampleNewEncoder() {
input := []byte("foo\x00bar")
encoder := base64.NewEncoder(base64.StdEncoding, os.Stdout)
encoder.Write(input)
// Must close the encoder when finished to flush any partial blocks.
// If you comment out the following line, the last partial block "r"
// won't be encoded.
encoder.Close()
// Output:
// Zm9vAGJhcg==
}