37 lines
721 B
Go
37 lines
721 B
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"golang.org/x/text/encoding"
|
|
"golang.org/x/text/encoding/charmap"
|
|
)
|
|
|
|
type Encoding string
|
|
|
|
const (
|
|
EncodingUtf8 Encoding = "UTF-8"
|
|
EncodingWin1251 Encoding = "Win-1251"
|
|
)
|
|
|
|
func (e Encoding) Encoder() (*encoding.Encoder, error) {
|
|
switch e {
|
|
case EncodingWin1251:
|
|
return charmap.Windows1251.NewEncoder(), nil
|
|
case EncodingUtf8:
|
|
return &encoding.Encoder{Transformer: new(DummyTransformer)}, nil
|
|
}
|
|
|
|
return nil, fmt.Errorf("unknown encoding: %s", string(e))
|
|
}
|
|
|
|
type DummyTransformer struct{}
|
|
|
|
func (e *DummyTransformer) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
|
|
copy(dst, src)
|
|
|
|
return len(src), len(src), nil
|
|
}
|
|
|
|
func (e *DummyTransformer) Reset() {}
|