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// Copyright 2016 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.
package hex_test
import (
"encoding/hex"
"fmt"
"log"
"os"
)
func ExampleEncode() {
src := []byte("Hello Gopher!")
dst := make([]byte, hex.EncodedLen(len(src)))
hex.Encode(dst, src)
fmt.Printf("%s\n", dst)
// Output:
// 48656c6c6f20476f7068657221
}
func ExampleDecode() {
src := []byte("48656c6c6f20476f7068657221")
dst := make([]byte, hex.DecodedLen(len(src)))
n, err := hex.Decode(dst, src)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s\n", dst[:n])
// Output:
// Hello Gopher!
}
func ExampleDecodeString() {
const s = "48656c6c6f20476f7068657221"
decoded, err := hex.DecodeString(s)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s\n", decoded)
// Output:
// Hello Gopher!
}
func ExampleDump() {
content := []byte("Go is an open source programming language.")
fmt.Printf("%s", hex.Dump(content))
// Output:
// 00000000 47 6f 20 69 73 20 61 6e 20 6f 70 65 6e 20 73 6f |Go is an open so|
// 00000010 75 72 63 65 20 70 72 6f 67 72 61 6d 6d 69 6e 67 |urce programming|
// 00000020 20 6c 61 6e 67 75 61 67 65 2e | language.|
}
func ExampleDumper() {
lines := []string{
"Go is an open source programming language.",
"\n",
"We encourage all Go users to subscribe to golang-announce.",
}
stdoutDumper := hex.Dumper(os.Stdout)
defer stdoutDumper.Close()
for _, line := range lines {
stdoutDumper.Write([]byte(line))
}
// Output:
// 00000000 47 6f 20 69 73 20 61 6e 20 6f 70 65 6e 20 73 6f |Go is an open so|
// 00000010 75 72 63 65 20 70 72 6f 67 72 61 6d 6d 69 6e 67 |urce programming|
// 00000020 20 6c 61 6e 67 75 61 67 65 2e 0a 57 65 20 65 6e | language..We en|
// 00000030 63 6f 75 72 61 67 65 20 61 6c 6c 20 47 6f 20 75 |courage all Go u|
// 00000040 73 65 72 73 20 74 6f 20 73 75 62 73 63 72 69 62 |sers to subscrib|
// 00000050 65 20 74 6f 20 67 6f 6c 61 6e 67 2d 61 6e 6e 6f |e to golang-anno|
// 00000060 75 6e 63 65 2e |unce.|
}
func ExampleEncodeToString() {
src := []byte("Hello")
encodedStr := hex.EncodeToString(src)
fmt.Printf("%s\n", encodedStr)
// Output:
// 48656c6c6f
}
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