Encoding helpers for trie

This commit is contained in:
obscuren 2014-01-01 03:06:52 +01:00
parent 276fa6c799
commit 34d62c380e
2 changed files with 16 additions and 12 deletions

View File

@ -4,6 +4,7 @@ import (
"bytes" "bytes"
"encoding/hex" "encoding/hex"
"strings" "strings"
_"fmt"
) )
func CompactEncode(hexSlice []int) string { func CompactEncode(hexSlice []int) string {
@ -32,6 +33,21 @@ func CompactEncode(hexSlice []int) string {
return buff.String() return buff.String()
} }
func CompactDecode(str string) []int {
base := CompactHexDecode(str)
base = base[:len(base)-1]
if base[0] >= 2 {// && base[len(base)-1] != 16 {
base = append(base, 16)
}
if base[0] % 2 == 1 {
base = base[1:]
} else {
base = base[2:]
}
return base
}
func CompactHexDecode(str string) []int { func CompactHexDecode(str string) []int {
base := "0123456789abcdef" base := "0123456789abcdef"
hexSlice := make([]int, 0) hexSlice := make([]int, 0)

View File

@ -27,18 +27,6 @@ func TestCompactEncode(t *testing.T) {
} }
} }
// Helper function for comparing slices
func CompareIntSlice(a, b []int) bool {
if len(a) != len(b) {
return false
}
for i, v := range a {
if v != b[i] {
return false
}
}
return true
}
func TestCompactHexDecode(t *testing.T) { func TestCompactHexDecode(t *testing.T) {
exp := []int{7, 6, 6, 5, 7, 2, 6, 2, 16} exp := []int{7, 6, 6, 5, 7, 2, 6, 2, 16}