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goで絵文字表示可能なエクセルで開けるcsvファイルの出力(utf16le, タブ区切り)

Posted at

UTF16LEのBOM付きでエンコード、タブ区切りで出力。

main.go
package main

import (
	"fmt"
	"encoding/csv"
	"bytes"
	"io/ioutil"
	"golang.org/x/text/transform"
	"golang.org/x/text/encoding/unicode"
	"os"
)

func main() {
	buf := new(bytes.Buffer)
	w := csv.NewWriter(buf)
	w.Comma = '\t'
	w.Write([]string{"name", "type"})
	w.Write([]string{"blacksmith🔨", "villager"})
	w.Write([]string{"creeper💣", "enemy"})
	w.Write([]string{"zonbie😡", "enemy"})
	w.Flush()
	utf16byte, err := ioutil.ReadAll(transform.NewReader(
		buf,
		unicode.UTF16(unicode.LittleEndian, unicode.UseBOM).NewEncoder()))
	if err != nil {
		fmt.Println(err)
	}
	file, err := os.OpenFile("utf16le.csv", os.O_WRONLY|os.O_CREATE, 0600)
	file.Write(utf16byte)
}
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