root/tags/lgt2311/configs/prologII.config

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Logtalk - Open source object-oriented logic programming language
%  Release 2.31.1
%
%  configuration file for PrologII+ 4.5 and later versions
%
%  last updated: October 24, 2007
% 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


:- set_prolog_flag(unknown, :fail).



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  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, built_in) :-
    predefined(Pred).

'$lgt_predicate_property'(_, dynamic).

'$lgt_predicate_property'(_, static) :-
    fail.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  meta-predicates
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% call_cleanup(+callable, +callble)

call_cleanup(_, _) :-
    throw(not_supported(call_cleanup/2)).


% forall(+callable, +callble) -- built-in

forall(Generate, Test) :-
    \+ (call(Generate), \+ call(Test)).


% retractall(+callable) -- built-in


% call_with_args/2-9
%
% use these definitions only if your compiler does
% not provide call_with_args/2-9 as built-in predicates

call_with_args(F, A) :-
    Call =.. [F, A],
    call(Call).

call_with_args(F, A1, A2) :-
    Call =.. [F, A1, A2],
    call(Call).

call_with_args(F, A1, A2, A3) :-
    Call =.. [F, A1, A2, A3],
    call(Call).

call_with_args(F, A1, A2, A3, A4) :-
    Call =.. [F, A1, A2, A3, A4],
    call(Call).

call_with_args(F, A1, A2, A3, A4, A5) :-
    Call =.. [F, A1, A2, A3, A4, A5],
    call(Call).

call_with_args(F, A1, A2, A3, A4, A5, A6) :-
    Call =.. [F, A1, A2, A3, A4, A5, A6],
    call(Call).

call_with_args(F, A1, A2, A3, A4, A5, A6, A7) :-
    Call =.. [F, A1, A2, A3, A4, A5, A6, A7],
    call(Call).

call_with_args(F, A1, A2, A3, A4, A5, A6, A7, A8) :-
    Call =.. [F, A1, A2, A3, A4, A5, A6, A7, A8],
    call(Call).



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Prolog built-in meta-predicates
%
%  (excluding ISO Prolog Standard meta-predicates)
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% '$lgt_pl_meta_predicate'(?callable).

'$lgt_pl_meta_predicate'(_) :-
    fail.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  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

'$lgt_default_flag'(xmldocs, on).
'$lgt_default_flag'(xslfile, 'lgtxml.xsl').
'$lgt_default_flag'(xmlspec, dtd).
'$lgt_default_flag'(xmlsref, 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'(reload, always).

'$lgt_default_flag'(startup_message, flags(verbose)).

'$lgt_default_flag'(underscore_variables, singletons).

'$lgt_default_flag'(code_prefix, '').

'$lgt_default_flag'(debug, off).
'$lgt_default_flag'(break_predicate, false).

'$lgt_default_flag'(events, off).

'$lgt_default_flag'(altdirs, off).
'$lgt_default_flag'(tmpdir, 'lgt_tmp/').
'$lgt_default_flag'(xmldir, 'xml_docs/').

'$lgt_default_flag'(encoding_directive, unsupported).
'$lgt_default_flag'(threads, unsupported).

'$lgt_default_flag'(context_switching_calls, allow).



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  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).


'$lgt_member_var'(Var, [Head| _]) :-
    Var == Head.
'$lgt_member_var'(Var, [_| Tail]) :-
    '$lgt_member_var'(Var, Tail).


'$lgt_is_list'([]) :-
    !.
'$lgt_is_list'([_| Tail]) :-
    '$lgt_is_list'(Tail).


'$lgt_is_proper_list'(List) :-
    List == [], !.
'$lgt_is_proper_list'([_| Tail]) :-
    nonvar(Tail),
    '$lgt_is_proper_list'(Tail).



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  file predicates
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% '$lgt_file_exists'(+atom)
%
% see if a file exist in the current directory

'$lgt_file_exists'(File) :-    
    nonvar(File),
    catch(open(File, :read, Stream), _, fail),
    close(Stream).


% '$lgt_directory_exists'(+atom)
%
% checks if a directory exists

'$lgt_directory_exists'(_).


% '$lgt_current_directory'(-atom)
%
% gets current working directory

'$lgt_current_directory'(Directory) :-
    import_dir(Directory).


% '$lgt_change_directory'(+atom)
%
% changes current working directory

'$lgt_change_directory'(Directory) :-
    set_import_dir(Directory).


% '$lgt_make_directory'(+atom)
%
% makes a new directory; succeeds if the directory already exists

'$lgt_make_directory'(_) :-
    throw(not_supported('$lgt_make_directory'/1)).


% '$lgt_load_prolog_code'(+atom, +atom)
%
% compile and load a Prolog file

'$lgt_load_prolog_code'(File, _) :-
    reconsult(File),
    write(File),
    write(' loaded'),
    nl.


% '$lgt_compare_file_mtimes'(?atom, +atom, +atom)
%
% compare file modification times

'$lgt_compare_file_mtimes'(_, _, _) :-
    fail.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  sorting predicates
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% '$lgt_keysort'(+list, -list)

'$lgt_keysort'(List, Sorted) :-
    keysort(List, Sorted).


% '$lgt_sort'( +List, -Sorted )

'$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) :-
    date(Day, Month, Year, _).


% '$lgt_current_time'(?Hours, ?Mins, ?Secs)

'$lgt_current_time'(Hours, Mins, Secs) :-
    time(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) :-
    cpu_time(Milliseconds),
    Seconds is Milliseconds/1000.0.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  comparison predicate
%
%  the usual compare/3 definition
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% compare(?atom, @term, @term)

compare(<, X, Y) :-
    X @< Y, !.

compare(=, X, Y) :-
    X == Y, !.
    
compare(>, X, Y) :-
    X @> Y.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  callable predicate
%
%  the usual callable/1 definition
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% callable(@term)

callable(Term) :-
    nonvar(Term),
    functor(Term, Functor, _),
    atom(Functor).



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  read character predicate
%
%  read a single character echoing it and writing a newline after
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


'$lgt_read_single_char'(Char) :-
    get_char(Char),
    (   peek_code(10) ->    % hack to workaround the lack of built-in
        get_code(_)         % support for unbuffered character input
    ;   true
    ).



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  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) :-
    write(Stream, Term).


'$lgt_pretty_print_vars_quoted'(Stream, Term) :-
    writeq(Stream, Term).



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  getting stream current line number
%  (needed for improved compiler error messages)
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% '$lgt_stream_current_line_number'(@stream, -integer)

'$lgt_stream_current_line_number'(_, _) :-
    fail.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  handling of Prolog-proprietary directives on Logtalk source files
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% '$lgt_ignore_pl_directive'(@callable)

'$lgt_ignore_pl_directive'(_) :-
    fail.


% '$lgt_rewrite_and_copy_pl_directive'(@callable, -callable)

'$lgt_rewrite_and_copy_pl_directive'(_, _) :-
    fail.


% '$lgt_rewrite_and_recompile_pl_directive'(@callable, -callable)

'$lgt_rewrite_and_recompile_pl_directive'(_, _) :-
    fail.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Shortcut to the Logtalk built-in predicate logtalk_load/1
%
%  defined in the config files in order to be able to comment it out in case
%  of conflict with some Prolog native feature; it implies conformance with
%  the ISO Prolog standard regarding the definition of the {}/1 syntax
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

{File, Files} :-
    !,
    logtalk_load(File),
    {Files}.
{File} :-
    logtalk_load(File).



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%
%  end!
%
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