anchor.diff:        IMPORTING is_item TYPE st_item
         RAISING   lcx_exception.
   
  +  PRIVATE SECTION.
  +    CLASS-METHODS validate_font
  +      IMPORTING iv_tdfamily TYPE tdfamily
  +      RAISING   lcx_exception.
  +
   ENDCLASS.
   
   CLASS lcl_object_ssst IMPLEMENTATION.
  +
  +  METHOD validate_font.
  +
  +    DATA: lv_tdfamily TYPE tfo01-tdfamily.
  +
  +
  +    SELECT SINGLE tdfamily FROM tfo01 INTO lv_tdfamily
  +      WHERE tdfamily = iv_tdfamily.
  +    IF sy-subrc <> 0.
  +      _raise 'Font family not found'.
  +    ENDIF.
  +
  +  ENDMETHOD.
   
     METHOD serialize.
   * see fm SSF_DOWNLOAD_STYLE
  
positive.code: * See https://github.com/larshp/abapGit/
  
  CONSTANTS: gc_xml_version  TYPE string VALUE 'v0.2-alpha',  "#EC NOTEXT
             gc_abap_version TYPE string VALUE 'v0.36'.       "#EC NOTEXT
  
  ********************************************************************************
  * The MIT License (MIT)
  
negative.code:                         CHANGING ct_table = lt_strings ).
      lo_xml->table_read( EXPORTING iv_name = 'STXSTAB'
                          CHANGING ct_table = lt_tabstops ).
  
      validate_font( ls_header-tdfamily ).
  
      CALL FUNCTION 'SSF_SAVE_STYLE'
        EXPORTING
  