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