return new CellspacingMapper(attribute);
        }
        if (Attributes.MARGIN_LEFT.equals(name)) {
          return new MarginLeftMapper(attribute);
        }
        if (Attributes.MARGIN_TOP.equals(name)) {
          return new MarginTopMapper(attribute);
        }
        if (Attributes.MARGIN_RIGHT.equals(name)) {
          return new MarginRightMapper(attribute);
        }
        if (Attributes.MARGIN_BOTTOM.equals(name)) {
          return new MarginBottomMapper(attribute);
        }
        if (Attributes.MARGIN.equals(name)) {
          return new MarginMapper(attribute);
        }
      }
    }
    return null;
  }

  static final class ColumnSpacingMapper extends Metadata {