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conversion.go
conversion.go 7.27 KiB
package ternary
import "bytes"
const (
NUMBER_OF_TRITS_IN_A_BYTE = 5
NUMBER_OF_TRITS_IN_A_TRYTE = 3
)
var (
TRYTES_TO_TRITS_MAP = map[rune][]int8{
'9': Trits{0, 0, 0},
'A': Trits{1, 0, 0},
'B': Trits{-1, 1, 0},
'C': Trits{0, 1, 0},
'D': Trits{1, 1, 0},
'E': Trits{-1, -1, 1},
'F': Trits{0, -1, 1},
'G': Trits{1, -1, 1},
'H': Trits{-1, 0, 1},
'I': Trits{0, 0, 1},
'J': Trits{1, 0, 1},
'K': Trits{-1, 1, 1},
'L': Trits{0, 1, 1},
'M': Trits{1, 1, 1},
'N': Trits{-1, -1, -1},
'O': Trits{0, -1, -1},
'P': Trits{1, -1, -1},
'Q': Trits{-1, 0, -1},
'R': Trits{0, 0, -1},
'S': Trits{1, 0, -1},
'T': Trits{-1, 1, -1},
'U': Trits{0, 1, -1},
'V': Trits{1, 1, -1},
'W': Trits{-1, -1, 0},
'X': Trits{0, -1, 0},
'Y': Trits{1, -1, 0},
'Z': Trits{-1, 0, 0},
}
TRYTE_ALPHABET = []string{
"9", "A", "B","C", "D", "E", "F", "G", "H",
"I", "J", "K", "L", "M", "N", "O", "P", "Q",
"R", "S", "T", "U", "V", "W", "X", "Y", "Z",
}
BYTES_TO_TRITS = []Trit {
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, -1, -1,
1, 0, 0, 0, -1, 1, 0, 0, 1, -1, 1, 0, 0, -1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0,
0, -1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, -1, -1, -1, 1, 0, 0, -1, -1, 1, 0, 1,
-1, -1, 1, 0, -1, 0, -1, 1, 0, 0, 0, -1, 1, 0, 1, 0, -1, 1, 0, -1, 1, -1, 1, 0, 0, 1, -1,
1, 0, 1, 1, -1, 1, 0, -1, -1, 0, 1, 0, 0, -1, 0, 1, 0, 1, -1, 0, 1, 0, -1, 0, 0, 1, 0,
0, 0, 0, 1, 0, 1, 0, 0, 1, 0, -1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, -1, -1,
1, 1, 0, 0, -1, 1, 1, 0, 1, -1, 1, 1, 0, -1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1,
0, -1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, -1, -1, -1, -1, 1, 0, -1, -1, -1, 1, 1,
-1, -1, -1, 1, -1, 0, -1, -1, 1, 0, 0, -1, -1, 1, 1, 0, -1, -1, 1, -1, 1, -1, -1, 1, 0, 1, -1,
-1, 1, 1, 1, -1, -1, 1, -1, -1, 0, -1, 1, 0, -1, 0, -1, 1, 1, -1, 0, -1, 1, -1, 0, 0, -1, 1,
0, 0, 0, -1, 1, 1, 0, 0, -1, 1, -1, 1, 0, -1, 1, 0, 1, 0, -1, 1, 1, 1, 0, -1, 1, -1, -1,
1, -1, 1, 0, -1, 1, -1, 1, 1, -1, 1, -1, 1, -1, 0, 1, -1, 1, 0, 0, 1, -1, 1, 1, 0, 1, -1,
1, -1, 1, 1, -1, 1, 0, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 0, 1, 0, -1, -1, 0, 1, 1,
-1, -1, 0, 1, -1, 0, -1, 0, 1, 0, 0, -1, 0, 1, 1, 0, -1, 0, 1, -1, 1, -1, 0, 1, 0, 1, -1,
0, 1, 1, 1, -1, 0, 1, -1, -1, 0, 0, 1, 0, -1, 0, 0, 1, 1, -1, 0, 0, 1, -1, 0, 0, 0, 1,
0, 0, 0, 0, 1, 1, 0, 0, 0, 1, -1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, -1, -1,
1, 0, 1, 0, -1, 1, 0, 1, 1, -1, 1, 0, 1, -1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0,
1, -1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, -1, -1, -1, 1, 1, 0, -1, -1, 1, 1, 1,
-1, -1, 1, 1, -1, 0, -1, 1, 1, 0, 0, -1, 1, 1, 1, 0, -1, 1, 1, -1, 1, -1, 1, 1, 0, 1, -1,
1, 1, 1, 1, -1, 1, 1, -1, -1, 0, 1, 1, 0, -1, 0, 1, 1, 1, -1, 0, 1, 1, -1, 0, 0, 1, 1,
0, 0, 0, 1, 1, 1, 0, 0, 1, 1, -1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, -1, -1,
1, 1, 1, 0, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, -1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 0, -1, -1, -1, -1, 1,
-1, -1, -1, -1, -1, 0, -1, -1, -1, 0, 0, -1, -1, -1, 1, 0, -1, -1, -1, -1, 1, -1, -1, -1, 0, 1, -1,
-1, -1, 1, 1, -1, -1, -1, -1, -1, 0, -1, -1, 0, -1, 0, -1, -1, 1, -1, 0, -1, -1, -1, 0, 0, -1, -1,
0, 0, 0, -1, -1, 1, 0, 0, -1, -1, -1, 1, 0, -1, -1, 0, 1, 0, -1, -1, 1, 1, 0, -1, -1, -1, -1,
1, -1, -1, 0, -1, 1, -1, -1, 1, -1, 1, -1, -1, -1, 0, 1, -1, -1, 0, 0, 1, -1, -1, 1, 0, 1, -1,
-1, -1, 1, 1, -1, -1, 0, 1, 1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, 0, -1, 0, -1, -1, 0, -1, 1,
-1, -1, 0, -1, -1, 0, -1, 0, -1, 0, 0, -1, 0, -1, 1, 0, -1, 0, -1, -1, 1, -1, 0, -1, 0, 1, -1,
0, -1, 1, 1, -1, 0, -1, -1, -1, 0, 0, -1, 0, -1, 0, 0, -1, 1, -1, 0, 0, -1, -1, 0, 0, 0, -1,
0, 0, 0, 0, -1, 1, 0, 0, 0, -1, -1, 1, 0, 0, -1, 0, 1, 0, 0, -1, 1, 1, 0, 0, -1, -1, -1,
1, 0, -1, 0, -1, 1, 0, -1, 1, -1, 1, 0, -1, -1, 0, 1, 0, -1, 0, 0, 1, 0, -1, 1, 0, 1, 0,
-1, -1, 1, 1, 0, -1, 0, 1, 1, 0, -1, 1, 1, 1, 0, -1, -1, -1, -1, 1, -1, 0, -1, -1, 1, -1, 1,
-1, -1, 1, -1, -1, 0, -1, 1, -1, 0, 0, -1, 1, -1, 1, 0, -1, 1, -1, -1, 1, -1, 1, -1, 0, 1, -1,
1, -1, 1, 1, -1, 1, -1, -1, -1, 0, 1, -1, 0, -1, 0, 1, -1, 1, -1, 0, 1, -1, -1, 0, 0, 1, -1,
0, 0, 0, 1, -1, 1, 0, 0, 1, -1, -1, 1, 0, 1, -1, 0, 1, 0, 1, -1, 1, 1, 0, 1, -1, -1, -1,
1, 1, -1, 0, -1, 1, 1, -1, 1, -1, 1, 1, -1, -1, 0, 1, 1, -1, 0, 0, 1, 1, -1, 1, 0, 1, 1,
-1, -1, 1, 1, 1, -1, 0, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 0, 0, -1, -1, -1, 0, 1,
-1, -1, -1, 0, -1, 0, -1, -1, 0, 0, 0, -1, -1, 0, 1, 0, -1, -1, 0, -1, 1, -1, -1, 0, 0, 1, -1,
-1, 0, 1, 1, -1, -1, 0, -1, -1, 0, -1, 0, 0, -1, 0, -1, 0, 1, -1, 0, -1, 0, -1, 0, 0, -1, 0,
0, 0, 0, -1, 0, 1, 0, 0, -1, 0, -1, 1, 0, -1, 0, 0, 1, 0, -1, 0, 1, 1, 0, -1, 0, -1, -1,
1, -1, 0, 0, -1, 1, -1, 0, 1, -1, 1, -1, 0, -1, 0, 1, -1, 0, 0, 0, 1, -1, 0, 1, 0, 1, -1,
0, -1, 1, 1, -1, 0, 0, 1, 1, -1, 0, 1, 1, 1, -1, 0, -1, -1, -1, 0, 0, 0, -1, -1, 0, 0, 1,
-1, -1, 0, 0, -1, 0, -1, 0, 0, 0, 0, -1, 0, 0, 1, 0, -1, 0, 0, -1, 1, -1, 0, 0, 0, 1, -1,
0, 0, 1, 1, -1, 0, 0, -1, -1, 0, 0, 0, 0, -1, 0, 0, 0, 1, -1, 0, 0, 0, -1, 0, 0, 0, 0,
}
)
func BytesToTrits(bytes []byte) Trits {
size := len(bytes)
trits := make([]Trit, size*NUMBER_OF_TRITS_IN_A_BYTE)
for i := 0; i < size; i++ {
v := int(bytes[i])
if int8(bytes[i]) < 0 {
v -= 13
}
for j := 0; j < NUMBER_OF_TRITS_IN_A_BYTE; j++ {
trits[i*NUMBER_OF_TRITS_IN_A_BYTE+j] = BYTES_TO_TRITS[v*NUMBER_OF_TRITS_IN_A_BYTE+j]
}
}
return trits
}
func TritsToString(trits Trits, offset int, size int) string {
var buffer bytes.Buffer
for i := 0; i < (size + NUMBER_OF_TRITS_IN_A_TRYTE - 1) / NUMBER_OF_TRITS_IN_A_TRYTE; i++ {
j := int(trits[offset + i * NUMBER_OF_TRITS_IN_A_TRYTE]) + int(trits[offset + i * NUMBER_OF_TRITS_IN_A_TRYTE + 1]) * NUMBER_OF_TRITS_IN_A_TRYTE + int(trits[offset + i * NUMBER_OF_TRITS_IN_A_TRYTE + 2]) * NUMBER_OF_TRITS_IN_A_TRYTE * NUMBER_OF_TRITS_IN_A_TRYTE;
if j < 0 {
j += len(TRYTE_ALPHABET)
}
buffer.WriteString(TRYTE_ALPHABET[j]);
}
return buffer.String()
}