go example_test 源码
golang example_test 代码
文件路径：/src/mime/example_test.go
// Copyright 2015 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 mime_test
import (
"bytes"
"fmt"
"io"
"mime"
)
func ExampleWordEncoder_Encode() {
fmt.Println(mime.QEncoding.Encode("utf-8", "¡Hola, señor!"))
fmt.Println(mime.QEncoding.Encode("utf-8", "Hello!"))
fmt.Println(mime.BEncoding.Encode("UTF-8", "¡Hola, señor!"))
fmt.Println(mime.QEncoding.Encode("ISO-8859-1", "Caf\xE9"))
// Output:
// =?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=
// Hello!
// =?UTF-8?b?wqFIb2xhLCBzZcOxb3Ih?=
// =?ISO-8859-1?q?Caf=E9?=
}
func ExampleWordDecoder_Decode() {
dec := new(mime.WordDecoder)
header, err := dec.Decode("=?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=")
if err != nil {
panic(err)
}
fmt.Println(header)
dec.CharsetReader = func(charset string, input io.Reader) (io.Reader, error) {
switch charset {
case "x-case":
// Fake character set for example.
// Real use would integrate with packages such
// as code.google.com/p/go-charset
content, err := io.ReadAll(input)
if err != nil {
return nil, err
}
return bytes.NewReader(bytes.ToUpper(content)), nil
default:
return nil, fmt.Errorf("unhandled charset %q", charset)
}
}
header, err = dec.Decode("=?x-case?q?hello!?=")
if err != nil {
panic(err)
}
fmt.Println(header)
// Output:
// ¡Hola, señor!
// HELLO!
}
func ExampleWordDecoder_DecodeHeader() {
dec := new(mime.WordDecoder)
header, err := dec.DecodeHeader("=?utf-8?q?=C3=89ric?= <eric@example.org>, =?utf-8?q?Ana=C3=AFs?= <anais@example.org>")
if err != nil {
panic(err)
}
fmt.Println(header)
header, err = dec.DecodeHeader("=?utf-8?q?=C2=A1Hola,?= =?utf-8?q?_se=C3=B1or!?=")
if err != nil {
panic(err)
}
fmt.Println(header)
dec.CharsetReader = func(charset string, input io.Reader) (io.Reader, error) {
switch charset {
case "x-case":
// Fake character set for example.
// Real use would integrate with packages such
// as code.google.com/p/go-charset
content, err := io.ReadAll(input)
if err != nil {
return nil, err
}
return bytes.NewReader(bytes.ToUpper(content)), nil
default:
return nil, fmt.Errorf("unhandled charset %q", charset)
}
}
header, err = dec.DecodeHeader("=?x-case?q?hello_?= =?x-case?q?world!?=")
if err != nil {
panic(err)
}
fmt.Println(header)
// Output:
// Éric <eric@example.org>, Anaïs <anais@example.org>
// ¡Hola, señor!
// HELLO WORLD!
}
func ExampleFormatMediaType() {
mediatype := "text/html"
params := map[string]string{
"charset": "utf-8",
}
result := mime.FormatMediaType(mediatype, params)
fmt.Println("result:", result)
// Output:
// result: text/html; charset=utf-8
}
func ExampleParseMediaType() {
mediatype, params, err := mime.ParseMediaType("text/html; charset=utf-8")
if err != nil {
panic(err)
}
fmt.Println("type:", mediatype)
fmt.Println("charset:", params["charset"])
// Output:
// type: text/html
// charset: utf-8
}
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