code: private String parseAttributeNameOrWildcard() {
  
          String name;
  
          if (is(TokenType.STAR, true)) {
              name = mToken.getContent();
          } else {
              name = parseAttributeName();
          }
  
          return name;
      }
docs: Parses the the rule AttributeOrWildcard according to the following
  production rule:
  <p>
  [60] AttribNameOrWildcard ::= AttributeName | "*" .
  </p>
  
  @return name