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-rw-r--r--ethutil/bytes.go20
-rw-r--r--ethutil/bytes_test.go14
2 files changed, 34 insertions, 0 deletions
diff --git a/ethutil/bytes.go b/ethutil/bytes.go
index 4027e3986..49fc229d3 100644
--- a/ethutil/bytes.go
+++ b/ethutil/bytes.go
@@ -131,6 +131,26 @@ func FormatData(data string) []byte {
return BigToBytes(d, 256)
}
+func ParseData(data ...interface{}) (ret []byte) {
+ for _, item := range data {
+ switch t := item.(type) {
+ case string:
+ var str []byte
+ if IsHex(t) {
+ str = Hex2Bytes(t[2:])
+ } else {
+ str = []byte(t)
+ }
+
+ ret = append(ret, RightPadBytes(str, 32)...)
+ case []byte:
+ ret = append(ret, LeftPadBytes(t, 32)...)
+ }
+ }
+
+ return
+}
+
func RightPadBytes(slice []byte, l int) []byte {
if l < len(slice) {
return slice
diff --git a/ethutil/bytes_test.go b/ethutil/bytes_test.go
new file mode 100644
index 000000000..381efe7a2
--- /dev/null
+++ b/ethutil/bytes_test.go
@@ -0,0 +1,14 @@
+package ethutil
+
+import (
+ "bytes"
+ "testing"
+)
+
+func TestParseData(t *testing.T) {
+ data := ParseData("hello", "world", "0x0106")
+ exp := "68656c6c6f000000000000000000000000000000000000000000000000000000776f726c640000000000000000000000000000000000000000000000000000000106000000000000000000000000000000000000000000000000000000000000"
+ if bytes.Compare(data, Hex2Bytes(exp)) != 0 {
+ t.Error("Error parsing data")
+ }
+}