cat /Users/zrd/Downloads/gostandardlib/Chapter02/Strings and Things/recipe08/win1250.txt
Gda?sk%

decode

package main

import (
    "io"
    "os"

    "golang.org/x/text/encoding/charmap"
)

func main() {

    f, err := os.OpenFile("out.txt", os.O_CREATE|os.O_RDWR, os.ModePerm|os.ModeAppend)
    if err != nil {
        panic
 
(err)
    }
    defer f.Close()

    // Decode to unicode
    encoder := charmap.Windows1250.NewEncoder()
    writer := encoder.Writer(f)
    io.WriteString(writer, "Gdańsk")

}

/*

 */

package main

import (
    "io"
    "os"

    "golang.org/x/text/encoding/charmap"
)

func main() {

    f, err := os.OpenFile("out.txt", os.O_CREATE|os.O_RDWR, os.ModePerm|os.ModeAppend)
    if err != nil {
        panic(err)
    }
    defer f.Close()

    // Decode to unicode
    encoder := charmap.Windows1250.NewEncoder()
    writer := encoder.Writer(f)
    io.WriteString(writer, "Gdańsk")

}
 

2.8 decode encode