(key []byte)
| 203 | } |
| 204 | |
| 205 | func (dn *DB) EncodeKey(key []byte) []byte { |
| 206 | if len(key) > 0 && !utf8.Valid(key) { |
| 207 | buf := bytes.NewBuffer(nil) |
| 208 | tem := make([]byte, 2) |
| 209 | for k, b := range key { |
| 210 | if b > 127 { |
| 211 | hex.Encode(tem, key[k:k+1]) |
| 212 | buf.Write(tem) |
| 213 | } else { |
| 214 | buf.WriteByte(b) |
| 215 | } |
| 216 | } |
| 217 | key = buf.Bytes() |
| 218 | } |
| 219 | return key |
| 220 | } |