%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Logtalk - Object oriented extension to Prolog % Release 2.14.1 % % configuration file for YAP Prolog 4.3.x % % last updated: April 19, 2002 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % the following initialization is not needed to run Logtalk altough % is recommended; you can comment it out if needed :- initialization( (set_prolog_flag(update_semantics, logical), set_prolog_flag(unknown, error))). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ISO Prolog Standard predicates that we must define because they are % not built-in % % add a clause for lgt_iso_predicate/1 declaring each ISO predicate that % we must define; there must be at least one clause for this predicate % whose call should fail if we don't define any ISO predicates % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_iso_predicate'(?callable). '$lgt_iso_predicate'(_) :- fail. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % predicate properties % % this predicate must return at least static, dynamic and built_in % properties for an existing predicate % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_predicate_property'(+callable, ?predicate_property) '$lgt_predicate_property'(Pred, Prop) :- predicate_property(Pred, Prop). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % metapredicates % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % forall(+callable, +callble) forall(Generate, Test) :- \+ call((Generate, \+ call(Test))). % lgt_call/2-8 % % use these definitions only if your compiler does % not provide call/1-8 as built-in predicates '$lgt_call'(F, A) :- call_with_args(F, A). '$lgt_call'(F, A1, A2) :- call_with_args(F, A1, A2). '$lgt_call'(F, A1, A2, A3) :- call_with_args(F, A1, A2, A3). '$lgt_call'(F, A1, A2, A3, A4) :- call_with_args(F, A1, A2, A3, A4). '$lgt_call'(F, A1, A2, A3, A4, A5) :- call_with_args(F, A1, A2, A3, A4, A5). '$lgt_call'(F, A1, A2, A3, A4, A5, A6) :- call_with_args(F, A1, A2, A3, A4, A5, A6). '$lgt_call'(F, A1, A2, A3, A4, A5, A6, A7) :- call_with_args(F, A1, A2, A3, A4, A5, A6, A7). % lgt_once/2-8 % % if your compiler provides call/1-8 as built-in % predicates rewrite these definitions using call(...), !. '$lgt_once'(F, A) :- call_with_args(F, A), !. '$lgt_once'(F, A1, A2) :- call_with_args(F, A1, A2), !. '$lgt_once'(F, A1, A2, A3) :- call_with_args(F, A1, A2, A3), !. '$lgt_once'(F, A1, A2, A3, A4) :- call_with_args(F, A1, A2, A3, A4), !. '$lgt_once'(F, A1, A2, A3, A4, A5) :- call_with_args(F, A1, A2, A3, A4, A5), !. '$lgt_once'(F, A1, A2, A3, A4, A5, A6) :- call_with_args(F, A1, A2, A3, A4, A5, A6), !. '$lgt_once'(F, A1, A2, A3, A4, A5, A6, A7) :- call_with_args(F, A1, A2, A3, A4, A5, A6, A7), !. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % file extension predicates % % these extensions are used by Logtalk load/compile predicates % % you may want to change the extension for Prolog files to match % the one expected by your Prolog compiler % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_file_extension'(?atom, ?atom) '$lgt_file_extension'(logtalk, '.lgt'). '$lgt_file_extension'(prolog, '.pl'). '$lgt_file_extension'(xml, '.xml'). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % default flag values % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_default_flag'(?atom, ?atom) % % default values for all flags '$lgt_default_flag'(iso_initialization_dir, true). '$lgt_default_flag'(xml, on). '$lgt_default_flag'(xsl, 'lgtxml.xsl'). '$lgt_default_flag'(unknown, warning). '$lgt_default_flag'(misspelt, warning). '$lgt_default_flag'(singletons, warning). '$lgt_default_flag'(lgtredef, warning). '$lgt_default_flag'(plredef, silent). '$lgt_default_flag'(portability, silent). '$lgt_default_flag'(report, on). '$lgt_default_flag'(smart_compilation, off). '$lgt_default_flag'(startup_message, on). '$lgt_default_flag'(named_anonymous_vars, off). '$lgt_default_flag'(code_prefix, ''). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % list predicates % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% '$lgt_append'([], List, List). '$lgt_append'([Head| Tail], List, [Head| Tail2]) :- '$lgt_append'(Tail, List, Tail2). '$lgt_member'(Head, [Head| _]). '$lgt_member'(Head, [_| Tail]) :- '$lgt_member'(Head, Tail). '$lgt_member_var'(V, [H| _]) :- V == H. '$lgt_member_var'(V, [_| T]) :- '$lgt_member_var'(V, T). '$lgt_proper_list'([]). '$lgt_proper_list'([_| List]) :- '$lgt_proper_list'(List). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % file predicates % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_file_exists'(+atom) % % see if a file exist in the current directory '$lgt_file_exists'(File) :- exists(File). % '$lgt_load_prolog_code'(+atom) % % compile and load a Prolog file '$lgt_load_prolog_code'(File) :- reconsult(File). % '$lgt_compare_file_mtimes'(?atom, +atom, +atom) % % compare file modification times '$lgt_compare_file_mtimes'(Result, File1, File2) :- file_property(File1, mod_time(Time1)), file_property(File2, mod_time(Time2)), compare(Result, Time1, Time2). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % sorting predicates % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_keysort'(+list, -list) '$lgt_keysort'(List, Sorted) :- keysort(List, Sorted). % '$lgt_sort'(+list, -list) '$lgt_sort'(List, Sorted) :- sort(List, Sorted). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % time and date predicates % % if your Prolog compiler does not provide access to the operating system % time and date just write dummy definitions % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_current_date'(?Year, ?Month, ?Day) '$lgt_current_date'(99, 2, 7). % '$lgt_current_time'(?Hours, ?Mins, ?Secs) '$lgt_current_time'(0, 0, 0). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % timing predicate % % if your Prolog compiler does not provide access to a timing predicate % just write dummy definition % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_cpu_time'(-Seconds) '$lgt_cpu_time'(Seconds) :- Seconds is cputime. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % comparison predicate % % the usual compare/3 definition % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % compare(?atom, @term, @term) -- built-in %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % end! % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%