this function is in the main project now

docker-ex/main.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"encoding/hex"
 	"encoding/json"
 	"flag"
 	"fmt"
@@ -10,7 +9,7 @@ import (
 	"os/exec"
 	"strings"
 
-	esum "github.com/emojisum/emojisum/emoji"
+	"github.com/emojisum/emojisum/emoji"
 )
 
 var (
@@ -58,7 +57,7 @@ func main() {
 				if strings.Contains(it.Digest, ":") {
 					chunks := strings.SplitN(it.Digest, ":", 2)
 					h = chunks[0]
-					d, err = emojiFromHexString(chunks[1])
+					d, err = emoji.FromHexString(chunks[1])
 					if err != nil {
 						fmt.Fprintln(os.Stderr, err)
 						os.Exit(1)
@@ -80,25 +79,6 @@ func main() {
 	cmd.Run()
 }
 
-func emojiFromHexString(s string) (string, error) {
-	d, err := hex.DecodeString(s)
-	if err != nil {
-		return "", err
-	}
-
-	var ret string
-	for _, b := range d {
-		for _, e := range esum.Map(b) {
-			// use the first colon notation word and continue
-			if esum.IsCodepoint(e) {
-				ret = ret + esum.CodepointToUnicode(e)
-				break
-			}
-		}
-	}
-	return ret, nil
-}
-
 type ImageThing struct {
 	Repo        string
 	ID          string