code: public static NameExpr createNameExpr(String qualifiedName) {
          String[] split = qualifiedName.split("\\.");
          NameExpr ret = new NameExpr(split[0]);
          for (int i = 1; i < split.length; i++) {
              ret = new QualifiedNameExpr(ret, split[i]);
          }
          return ret;
      }
docs: Creates a new {@link NameExpr} from a qualified name.<br>
  The qualified name can contains "." (dot) characters.
  
  @param qualifiedName
  qualified name
  @return instanceof {@link NameExpr}