/
codec.go
62 lines (49 loc) · 971 Bytes
/
codec.go
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package encoding
import (
"io"
"golang.org/x/text/encoding"
)
type Codec interface {
Encoder
Decoder
Encoding() Encoding
Alignment() int
RuneSize() int
}
type Encoder interface {
Encode(dst io.Writer, src io.Reader) error
}
type Decoder interface {
Decode(dst io.Writer, src io.Reader) error
}
type Encoding string
const (
None Encoding = ""
)
type codec struct {
name Encoding
enc encoding.Encoding
alignment int
runeSize int
}
func (c *codec) Encode(dst io.Writer, src io.Reader) error {
encoder := c.enc.NewEncoder()
writer := encoder.Writer(dst)
_, err := io.Copy(writer, src)
return err
}
func (c *codec) Decode(dst io.Writer, src io.Reader) error {
decoder := c.enc.NewDecoder()
reader := decoder.Reader(src)
_, err := io.Copy(dst, reader)
return err
}
func (c *codec) Encoding() Encoding {
return c.name
}
func (c *codec) Alignment() int {
return c.alignment
}
func (c *codec) RuneSize() int {
return c.runeSize
}