func getShortcut(tree prefix_tree.PrefixTree, s string, minLen int) string {
s1, err := tree.Shortcut(s)
if err != nil || s == s1 {
return s
}
if len(s1) < minLen && minLen < len(s) {
s1 = s[:minLen]
}
shortcut := fmt.Sprintf("%v...", s1)
if len(shortcut) >= len(s) {
shortcut = s
}
return shortcut
}
