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-rw-r--r--ethutil/bytes.go10
1 files changed, 10 insertions, 0 deletions
diff --git a/ethutil/bytes.go b/ethutil/bytes.go
index b298675a2..075e40b4c 100644
--- a/ethutil/bytes.go
+++ b/ethutil/bytes.go
@@ -88,3 +88,13 @@ func IsHex(str string) bool {
l := len(str)
return l >= 4 && l%2 == 0 && str[0:2] == "0x"
}
+
+func StringToByteFunc(str string, cb func(str string) []byte) (ret []byte) {
+ if str[0:2] == "0x" {
+ ret = FromHex(str[2:])
+ } else {
+ ret = cb(str)
+ }
+
+ return
+}