wip: get prompt from format function

main.go

@@ -83,7 +83,7 @@ func main() {
 
 		//fmt.Printf(prompt)
 
-		cmdString, err := readline.String(prompt)
+		cmdString, err := readline.String(fmtPrompt())
 		if err == io.EOF {
 			fmt.Println("")
 			break
@@ -135,6 +135,10 @@ func main() {
 	}
 }
 
+func fmtPrompt() string {
+	return prompt
+}
+
 func splitInput(input string) []string {
 	quoted := false
 	cmdArgs := []string{}