return finishCollapseFrom(sequence, i + 1, len, replacement, builder, true);
        }
      }
    }
    // no replacement needed
    return sequence.toString();
  }

  /**
   * Collapses groups of matching characters exactly as {@link #collapseFrom} does, except that
   * groups of matching BMP characters at the start or end of the sequence are removed without
   * replacement.
   */

    /** The key of the message: Login Required */
    public static final String LABELS_login_required = "{labels.login_required}";

    /** The key of the message: Collapse Duplicate Results */
    public static final String LABELS_result_collapsed = "{labels.result_collapsed}";

    /** The key of the message: Show Login Link */