indexing description: "Error for unknown free option"; date: "$Date$"; revision: "$Revision $" class VD32 inherit LACE_ERROR redefine build_explain end; feature -- Property option_name: STRING; -- Option name feature -- Output build_explain (st: STRUCTURED_TEXT) is do st.add_string ("Unknown option: "); st.add_string (option_name); st.add_new_line; end; feature {D_OPTION_SD, CLUST_PROP_SD} -- Setting set_option_name (s: STRING) is -- Assign `s' to `option_name' do option_name := s end; end -- class VD32