From 34d62c380ef6327c170639af6221a82610efa25c Mon Sep 17 00:00:00 2001
From: obscuren <obscuren@obscura.com>
Date: Wed, 1 Jan 2014 03:06:52 +0100
Subject: [PATCH] Encoding helpers for trie
---
encoding.go | 16 ++++++++++++++++
encoding_test.go | 12 ------------
2 files changed, 16 insertions(+), 12 deletions(-)
diff --git a/encoding.go b/encoding.go
index ca30b47c9..d77303817 100644
--- a/encoding.go
+++ b/encoding.go
@@ -4,6 +4,7 @@ import (
"bytes"
"encoding/hex"
"strings"
+ _"fmt"
)
func CompactEncode(hexSlice []int) string {
@@ -32,6 +33,21 @@ func CompactEncode(hexSlice []int) 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 {
base := "0123456789abcdef"
hexSlice := make([]int, 0)
diff --git a/encoding_test.go b/encoding_test.go
index 63f7878bf..b66f702ac 100644
--- a/encoding_test.go
+++ b/encoding_test.go
@@ -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) {
exp := []int{7, 6, 6, 5, 7, 2, 6, 2, 16}
--
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