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yap-6.3/packages/python/swig/prolog/yapi.yap
Vitor Santos Costa 31423fcf90 yapi
2018-12-21 20:57:53 +00:00

122 lines
2.3 KiB
Prolog

%% @file yapi.yap
%% @brief support yap shell
%%
%:- start_low_level_trace.
%% :- module(yapi, [
%% python_ouput/0,
%% show_answer/2,
%% show_answer/3,
%% yap_query/4,
%% python_query/2,
%% python_query/3,
%% python_import/1,
%% yapi_query/2
%% ]).
:- yap_flag(verbose, silent).
:- use_module(library(python)).
:- use_module( library(lists) ).
:- use_module( library(maplist) ).
:- use_module( library(rbtrees) ).
:- use_module( library(terms) ).
:- python_import(yap4py.yapi).
:- python_import(json).
%:- python_import(gc).
:- meta_predicate( yapi_query(:,+) ).
%:- start_low_level_trace.
%% @pred yapi_query( + VarList, - Dictionary)
%%
%% dictionary, Examples
%%
%%
yapi_query( VarNames, Self ) :-
show_answer(VarNames, Dict),
Self.bindings := Dict.
%:- initialization set_preds.
set_preds :-
fail,
current_predicate(P, Q),
functor(Q,P,A),
current_predicate(P, Q),
functor(Q,P,A),
atom_string(P,S),
catch(
:= yap4py.yapi.named( S, A),
_,
fail),
fail.
set_preds :-
fail,
system_predicate(P/A),
atom_string(P,S),
catch(
:= yap4py.yapi.named( S, A),
_,
fail),
fail.
set_preds.
argi(N,I,I1) :-
atomic_concat(`A`,I,N),
I1 is I+1.
python_query( Caller, String ) :-
atomic_to_term( String, Goal, VarNames ),
query_to_answer( Goal, VarNames, Status, Bindings),
Caller.port := Status,
write_query_answer( Bindings ),
answer := {},
foldl(ground_dict(answer), Bindings, [], Ts),
term_variables( Ts, Hidden),
foldl(bv, Hidden , 0, _),
maplist(into_dict(answer),Ts),
Caller.answer := json.dumps(answer),
S := Caller.answer,
format(user_error, '~nor ~s~n~n',S).
bv(V,I,I1) :-
atomic_concat(['__',I],V),
I1 is I+1.
into_dict(D,V0=T) :-
D[V0] := T.
/**
*
*/
ground_dict(_Dict, var([V,V]), I, I) :-
!.
ground_dict(Dict, nonvar([V0|Vs], T),I0, [V0=T| I0]) :-
!,
ground_dict( Dict, var([V0|Vs]), I0, I0).
ground_dict(Dict, var([V0,V|Vs]), I, I) :-
!,
Dict[V]=V0,
ground_dict( Dict, var([V0|Vs]), I, I).
ground_dict(_, _, _, _).
bound_dict(Dict, nonvar([V0|Vs], T)) :-
!,
Dict[V0] := T,
bound_dict( Dict, var([V0|Vs])).
bound_dict(Dict, var([V0,V|Vs])) :-
!,
Dict[V] := V0,
bound_dict( Dict, var([V0|Vs])).
bound_dict(_, _).