(src []byte)
| 42 | } |
| 43 | |
| 44 | func encode(src []byte) string { |
| 45 | bs := make([]int, len(src)*8) |
| 46 | bl := len(bs) |
| 47 | for k, v := range src { |
| 48 | byteTo2(int(v), bs[k*8:k*8+8]) |
| 49 | } |
| 50 | |
| 51 | buf := make([]string, (bl+2)/3) |
| 52 | for i := 0; i*3+2 < len(bs); i++ { |
| 53 | buf[i] = m1[bs[i*3]<<2+bs[i*3+1]<<1+bs[i*3+2]] |
| 54 | } |
| 55 | |
| 56 | switch bl % 3 { |
| 57 | case 1: |
| 58 | buf[(bl+2)/3-1] = m1[bs[bl-1]<<2] |
| 59 | case 2: |
| 60 | buf[(bl+2)/3-1] = m1[bs[bl-2]<<2+bs[bl-1]<<1] |
| 61 | } |
| 62 | |
| 63 | return strings.Join(buf, "") |
| 64 | } |
| 65 | |
| 66 | func decode(s string) ([]byte, error) { |
| 67 | if s == "" { |