anchor.diff:  
     METHOD render_repo_item.
       DATA:
  -          lv_link     TYPE string,
  -          lv_icon     TYPE string,
  -          lv_difflink TYPE string,
  -          ls_file     TYPE ty_repo_file,
  -          lv_trclass  TYPE string.
  +      lv_link     TYPE string,
  +      lv_icon     TYPE string,
  +      lv_difflink TYPE string,
  +      ls_file     TYPE ty_repo_file,
  +      lv_trclass  TYPE string.
   
       CREATE OBJECT ro_html.
   
  
positive.code:       RAISING   lcx_exception.
  
      CLASS-METHODS diff
        IMPORTING is_file   TYPE ty_repo_file
                  iv_key    TYPE lcl_persistence_repo=>ty_repo-key
        RAISING   lcx_exception.
  
      CLASS-METHODS file_encode
  
negative.code: 
    METHOD lif_gui_page~on_event.
  
      DATA: ls_file TYPE ty_repo_file,
            lv_url  TYPE string,
            lv_key  TYPE lcl_persistence_repo=>ty_repo-key,
            ls_item TYPE ty_item,
            lo_db   TYPE REF TO lcl_gui_page_db.
  
  
      CASE iv_action.
  