%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Logtalk - Object oriented extension to Prolog % Release 2.22.4 % % configuration file for YAP Prolog 4.3.23 and later versions % % last updated: November 19, 2004 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % the following initialization is not needed to run Logtalk altough is % recommended; you can comment out the set_prolog_flag/2 calls if needed :- initialization( (set_prolog_flag(update_semantics, logical), set_prolog_flag(unknown, error), use_module(library(system)), '$lgt_hide_predicates')). '$lgt_hide_predicates' :- predicate_property(hide_predicate(_), built_in) -> dynamic('$lgt_before_'/5), hide_predicate('$lgt_before_'/5), dynamic('$lgt_after_'/5), hide_predicate('$lgt_after_'/5), dynamic('$lgt_current_protocol_'/3), hide_predicate('$lgt_current_protocol_'/3), dynamic('$lgt_current_category_'/3), hide_predicate('$lgt_current_category_'/3), dynamic('$lgt_current_object_'/6), hide_predicate('$lgt_current_object_'/6), dynamic('$lgt_implements_protocol_'/3), hide_predicate('$lgt_implements_protocol_'/3), dynamic('$lgt_imports_category_'/3), hide_predicate('$lgt_imports_category_'/3), dynamic('$lgt_instantiates_class_'/3), hide_predicate('$lgt_instantiates_class_'/3), dynamic('$lgt_specializes_class_'/3), hide_predicate('$lgt_specializes_class_'/3), dynamic('$lgt_extends_protocol_'/3), hide_predicate('$lgt_extends_protocol_'/3), dynamic('$lgt_extends_object_'/3), hide_predicate('$lgt_extends_object_'/3), dynamic('$lgt_debugging_'/1), hide_predicate('$lgt_debugging_'/1), dynamic('$lgt_dbg_debugging_'/0), hide_predicate('$lgt_dbg_debugging_'/0), dynamic('$lgt_dbg_leashing_'/1), hide_predicate('$lgt_dbg_leashing_'/1), dynamic('$lgt_obj_lookup_cache_'/6), hide_predicate('$lgt_obj_lookup_cache_'/6), dynamic('$lgt_self_lookup_cache_'/6), hide_predicate('$lgt_self_lookup_cache_'/6), dynamic('$lgt_super_lookup_cache_'/6), hide_predicate('$lgt_super_lookup_cache_'/6) ; true. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % 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), !. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Prolog built-in metapredicates % % (excluding ISO Prolog Standard metapredicates) % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_pl_metapredicate'(?callable). '$lgt_pl_metapredicate'(all(*, ::, *)). '$lgt_pl_metapredicate'(call_cleanup(::)). '$lgt_pl_metapredicate'(call_cleanup(::, ::)). '$lgt_pl_metapredicate'(call_residue(::, *)). '$lgt_pl_metapredicate'(if(::, ::, ::)). '$lgt_pl_metapredicate'(on_cleanup(::)). '$lgt_pl_metapredicate'(freeze(*, ::)). '$lgt_pl_metapredicate'(time_out(::, *, *)). '$lgt_pl_metapredicate'(when(*, ::)). '$lgt_pl_metapredicate'(thread_at_exit(::)). '$lgt_pl_metapredicate'(thread_create(::, *, *)). '$lgt_pl_metapredicate'(thread_signal(*, ::)). '$lgt_pl_metapredicate'(with_mutex(*, ::)). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % 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'(metafile, '.mlgt'). '$lgt_file_extension'(logtalk, '.lgt'). '$lgt_file_extension'(prolog, '.pl'). '$lgt_file_extension'(xml, '.xml'). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % alternate directory predicates % % these alternate directories are used by Logtalk load/compile predicates % when the flag altdirs is used; it's advisable to use alternate directories % relative to the current directory; the directory paths should always end % with the path separator character % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_alt_directory'(?atom, ?atom) '$lgt_alt_directory'(prolog, '.logtalk/'). '$lgt_alt_directory'(xml, 'xmldocs/'). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % 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'). '$lgt_default_flag'(xmlspec, dtd). '$lgt_default_flag'(doctype, local). '$lgt_default_flag'(unknown, warning). '$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). '$lgt_default_flag'(startup_message, flags). '$lgt_default_flag'(underscore_vars, singletons). '$lgt_default_flag'(code_prefix, ''). '$lgt_default_flag'(debug, off). '$lgt_default_flag'(supports_break_predicate, true). '$lgt_default_flag'(events, on). '$lgt_default_flag'(altdirs, off). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % list predicates % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% '$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]) :- '$lgt_proper_list'(List). '$lgt_reverse'(List, Reversed) :- '$lgt_reverse'(List, [], Reversed, Reversed). '$lgt_reverse'([], Reversed, Reversed, []). '$lgt_reverse'([Head| Tail], List, Reversed, [_| Bound]) :- '$lgt_reverse'(Tail, [Head| List], Reversed, Bound). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % file predicates % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % '$lgt_file_exists'(+atom) % % see if a file exist in the current directory '$lgt_file_exists'(File) :- file_exists(File). % '$lgt_current_directory'(-atom) % % gets current working directory '$lgt_current_directory'(Directory) :- getcwd(Directory). % '$lgt_change_directory'(+atom) % % changes current working directory '$lgt_change_directory'(Directory) :- cd(Directory). % '$lgt_make_directory'(+atom) % % makes a new directory; succeeds if the directory already exists '$lgt_make_directory'(Directory) :- file_exists(Directory) -> true ; make_directory(Directory). % '$lgt_load_prolog_code'(+atom) % % compile and load a Prolog file '$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'(Year, Month, Day) :- datime(datime(Year, Month, Day, _, _, _)). % '$lgt_current_time'(?Hours, ?Mins, ?Secs) '$lgt_current_time'(Hours, Mins, Secs) :- datime(datime(_, _, _, Hours, Mins, Secs)). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % 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) :- statistics(cputime, [Miliseconds, _]), Seconds is Miliseconds/1000. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % comparison predicate % % the usual compare/3 definition % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % compare(?atom, @term, @term) -- built-in %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % callable predicate % % the usual callable/1 definition % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % callable(@term) -- built-in %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % read character predicate % % read a single character echoing it and writing a newline after % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% '$lgt_read_single_char'(Char) :- get_char(Char). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % pretty print a term by naming its free variables % (avoid instantiating variables in term by using double negation if necessary) % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% '$lgt_pretty_print_vars'(Stream, Term) :- \+ \+ ( numbervars(Term, 0, _), write_term(Stream, Term, [numbervars(true)])). '$lgt_pretty_print_vars_quoted'(Stream, Term) :- \+ \+ ( numbervars(Term, 0, _), write_term(Stream, Term, [numbervars(true), quoted(true)])). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % end! % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%