fix the apply_macros/maplist conundrum!
This commit is contained in:
Vítor Santos Costa
parent
71d63dacac
commit
23e258bdd4
@ -38,6 +38,7 @@ PROGRAMS= \
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$(srcdir)/dbqueues.yap \
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$(srcdir)/dbusage.yap \
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$(srcdir)/dgraphs.yap \
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$(srcdir)/expand_macros.yap \
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$(srcdir)/gensym.yap \
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$(srcdir)/hacks.yap \
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$(srcdir)/heaps.yap \
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@ -46,6 +47,7 @@ PROGRAMS= \
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$(srcdir)/lists.yap \
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$(srcdir)/nb.yap \
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$(srcdir)/ordsets.yap \
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$(srcdir)/maplist.yap \
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$(srcdir)/matlab.yap \
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$(srcdir)/matrix.yap \
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$(srcdir)/prandom.yap \
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@ -4,15 +4,7 @@
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% Purpose: Macros to apply a predicate to all elements
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% of a list or to all sub-terms of a term.
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% Also has code from:
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% File : APPLIC.PL
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% Author : Lawrence Byrd + Richard A. O'Keefe
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% Updated: 4 August 1984 and Ken Johnson 11-8-87
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% Purpose: Various "function" application routines based on apply/2.
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% Needs : append/3 from listut.pl
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:- module(apply_macros, [selectlist/3,
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:- reexport(apply_macros, [selectlist/3,
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checklist/2,
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maplist/2,
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maplist/3,
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@ -31,709 +23,7 @@
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partition/5
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]).
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:- meta_predicate
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selectlist(:,+,-),
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checklist(:,+),
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maplist(:,+),
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maplist(:,+,-),
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maplist(:,+,+,-),
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maplist(:,+,+,+,-),
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convlist(:,+,-),
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mapargs(:,+,-),
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mapargs_args(:,+,-,+),
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sumargs(:,+,+,-),
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sumargs_args(:,+,+,-,+),
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mapnodes(:,+,-),
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mapnodes_list(:,+,-),
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checknodes(:,+),
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checknodes_list(:,+),
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sumlist(:,+,+,-),
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sumnodes(:,+,+,-),
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sumnodes_body(:,+,+,-,+,+),
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include(:,+,-),
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exclude(:,+,-),
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partition(:,+,-,-),
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partition(:,+,-,-,-).
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:- multifile user:goal_expansion/3.
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:- use_module(library(lists), [append/3]).
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:- use_module(library(charsio), [format_to_chars/3, read_from_chars/2]).
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:- use_module(library(error), [must_be/2]).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% Definitions for Metacalls
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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include(G,In,Out) :-
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selectlist(G, In, Out).
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selectlist(_, [], []).
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selectlist(Pred, [In|ListIn], ListOut) :-
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(call(Pred, In) ->
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ListOut = [In|NewListOut]
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;
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ListOut = NewListOut
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),
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selectlist(Pred, ListIn, NewListOut).
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exclude(_, [], []).
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exclude(Pred, [In|ListIn], ListOut) :-
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(call(Pred, In) ->
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ListOut = NewListOut
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;
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ListOut = [In|NewListOut]
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),
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exclude(Pred, ListIn, NewListOut).
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partition(_, [], [], []).
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partition(Pred, [In|ListIn], List1, List2) :-
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(call(Pred, In) ->
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List1 = [In|RList1],
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List2 = RList2
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;
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List1 = RList1,
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List2 = [In|RList2]
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),
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partition(Pred, ListIn, RList1, RList2).
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partition(_, [], [], [], []).
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partition(Pred, [In|ListIn], List1, List2, List3) :-
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call(Pred, In, Diff),
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( Diff == (<) ->
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List1 = [In|RList1],
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List2 = RList2,
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List3 = RList3
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;
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Diff == (=) ->
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List1 = RList1,
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List2 = [In|RList2],
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List3 = RList3
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;
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Diff == (>) ->
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List1 = RList1,
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List2 = RList2,
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List3 = [In|RList3]
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;
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must_be(oneof([<,=,>]), Diff)
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),
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partition(Pred, ListIn, RList1, RList2, RList3).
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checklist(_, []).
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checklist(Pred, [In|ListIn]) :-
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call(Pred, In),
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checklist(Pred, ListIn).
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% maplist(Pred, OldList)
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% succeeds when Pred(Old,New) succeeds for each corresponding
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% Old in OldList, New in NewList. In InterLisp, this is MAPCAR.
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% It is also MAP2C. Isn't bidirectionality wonderful?
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maplist(_, []).
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maplist(Pred, [In|ListIn]) :-
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call(Pred, In),
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maplist(Pred, ListIn).
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% maplist(Pred, OldList, NewList)
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% succeeds when Pred(Old,New) succeeds for each corresponding
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% Old in OldList, New in NewList. In InterLisp, this is MAPCAR.
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% It is also MAP2C. Isn't bidirectionality wonderful?
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maplist(_, [], []).
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maplist(Pred, [In|ListIn], [Out|ListOut]) :-
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call(Pred, In, Out),
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maplist(Pred, ListIn, ListOut).
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% maplist(Pred, List1, List2, List3)
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% succeeds when Pred(Old,New) succeeds for each corresponding
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% Gi in Listi, New in NewList. In InterLisp, this is MAPCAR.
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% It is also MAP2C. Isn't bidirectionality wonderful?
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maplist(_, [], [], []).
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maplist(Pred, [A1|L1], [A2|L2], [A3|L3]) :-
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call(Pred, A1, A2, A3),
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maplist(Pred, L1, L2, L3).
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% maplist(Pred, List1, List2, List3, List4)
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% succeeds when Pred(Old,New) succeeds for each corresponding
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% Gi in Listi, New in NewList. In InterLisp, this is MAPCAR.
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% It is also MAP2C. Isn't bidirectionality wonderful?
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maplist(_, [], [], [], []).
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maplist(Pred, [A1|L1], [A2|L2], [A3|L3], [A4|L4]) :-
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call(Pred, A1, A2, A3, A4),
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maplist(Pred, L1, L2, L3, L4).
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% convlist(Rewrite, OldList, NewList)
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% is a sort of hybrid of maplist/3 and sublist/3.
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% Each element of NewList is the image under Rewrite of some
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% element of OldList, and order is preserved, but elements of
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% OldList on which Rewrite is undefined (fails) are not represented.
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% Thus if foo(X,Y) :- integer(X), Y is X+1.
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% then convlist(foo, [1,a,0,joe(99),101], [2,1,102]).
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convlist(_, [], []).
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convlist(Pred, [Old|Olds], NewList) :-
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call(Pred, Old, New),
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!,
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NewList = [New|News],
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convlist(Pred, Olds, News).
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convlist(Pred, [_|Olds], News) :-
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convlist(Pred, Olds, News).
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mapargs(Pred, TermIn, TermOut) :-
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functor(TermIn, F, N),
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functor(TermOut, F, N),
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mapargs_args(Pred, TermIn, TermOut, N).
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mapargs_args(_, _, _, 0) :- !.
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mapargs_args(Pred, TermIn, TermOut, I) :-
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arg(I, TermIn, InArg),
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arg(I, TermOut, OutArg),
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I1 is I-1,
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call(Pred, InArg, OutArg),
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mapargs_args(Pred, TermIn, TermOut, I1).
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sumargs(Pred, Term, A0, A1) :-
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functor(Term, _, N),
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sumargs(Pred, Term, A0, A1, N).
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sumargs_args(_, _, A0, A1, 0) :-
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!,
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A0 = A1.
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sumargs_args(Pred, Term, A1, A3, N) :-
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arg(N, Term, Arg),
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N1 is N - 1,
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call(Pred, Arg, A1, A2),
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sumargs_args(Pred, Term, A2, A3, N1).
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mapnodes(Pred, TermIn, TermOut) :-
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(atomic(TermIn); var(TermOut)), !,
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call(Pred, TermIn, TermOut).
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mapnodes(Pred, TermIn, TermOut) :-
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call(Pred, TermIn, Temp),
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Temp =.. [Func|ArgsIn],
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mapnodes_list(Pred, ArgsIn, ArgsOut),
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TermOut =.. [Func|ArgsOut].
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mapnodes_list(_, [], []).
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appnodes_list(Pred, [TermIn|ArgsIn], [TermOut|ArgsOut]) :-
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mapnodes(Pred, TermIn, TermOut),
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mapnodes_list(Pred, ArgsIn, ArgsOut).
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checknodes(Pred, Term) :-
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(atomic(Term); var(Term)), !,
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call(Pred, Term).
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checknodes(Pred, Term) :-
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call(Pred, Term),
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Term =.. [_|Args],
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checknodes_list(Pred, Args).
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checknodes_list(_, []).
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checknodes_list(Pred, [Term|Args]) :-
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checknodes_body(Pred, Term),
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checknodes_list(Pred, Args).
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sumlist(_, [], Acc, Acc).
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sumlist(Pred, [H|T], AccIn, AccOut) :-
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call(Pred, H, AccIn, A1),
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sumlist(Pred, T, A1, AccOut).
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sumnodes(Pred, Term, A0, A2) :-
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call(Pred, Term, A0, A1),
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(compound(Term) ->
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functor(Term, _, N),
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sumnodes_body(Pred, Term, A1, A2, 0, N)
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; % simple term or variable
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A1 = A2
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).
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sumnodes_body(Pred, Term, A1, A3, N0, Ar) :-
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N0 < Ar ->
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N is N0+1,
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arg(N, Term, Arg),
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sumnodes(Pred, Arg, A1, A2),
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sumnodes_body(Pred, Term, A2, A3, N, Ar)
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;
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A1 = A3.
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:- use_module(library(expand_macros)).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%
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%% preprocessing for meta-calls
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%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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user:goal_expansion(maplist(Meta, ListIn, ListOut), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(maplist, 3, Proto, GoalName),
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append(MetaVars, [ListIn, ListOut], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[], []], Base),
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append_args(HeadPrefix, [[In|Ins], [Out|Outs]], RecursionHead),
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append_args(Pred, [In, Out], Apply),
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append_args(HeadPrefix, [Ins, Outs], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :- Apply, RecursiveCall)
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], Module).
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user:goal_expansion(checklist(Meta, List), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(checklist, 2, Proto, GoalName),
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append(MetaVars, [List], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[]], Base),
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append_args(HeadPrefix, [[In|Ins]], RecursionHead),
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append_args(Pred, [In], Apply),
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append_args(HeadPrefix, [Ins], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :- Apply, RecursiveCall)
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], Module).
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user:goal_expansion(maplist(Meta, List), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(maplist, 2, Proto, GoalName),
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append(MetaVars, [List], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[]], Base),
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append_args(HeadPrefix, [[In|Ins]], RecursionHead),
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append_args(Pred, [In], Apply),
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append_args(HeadPrefix, [Ins], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :- Apply, RecursiveCall)
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], Module).
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user:goal_expansion(maplist(Meta, L1, L2, L3), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(maplist, 4, Proto, GoalName),
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append(MetaVars, [L1, L2, L3], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[], [], []], Base),
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append_args(HeadPrefix, [[A1|A1s], [A2|A2s], [A3|A3s]], RecursionHead),
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append_args(Pred, [A1, A2, A3], Apply),
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append_args(HeadPrefix, [A1s, A2s, A3s], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :- Apply, RecursiveCall)
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], Module).
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user:goal_expansion(maplist(Meta, L1, L2, L3, L4), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(maplist, 5, Proto, GoalName),
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append(MetaVars, [L1, L2, L3, L4], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[], [], [], []], Base),
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append_args(HeadPrefix, [[A1|A1s], [A2|A2s], [A3|A3s], [A4|A4s]], RecursionHead),
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append_args(Pred, [A1, A2, A3, A4], Apply),
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append_args(HeadPrefix, [A1s, A2s, A3s, A4s], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :- Apply, RecursiveCall)
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], Module).
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user:goal_expansion(selectlist(Meta, ListIn, ListOut), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(selectlist, 3, Proto, GoalName),
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append(MetaVars, [ListIn, ListOut], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[], []], Base),
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append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
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append_args(Pred, [In], Apply),
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append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :-
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(Apply -> Outs = [In|NOuts]; Outs = NOuts),
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RecursiveCall)
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], Module).
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% same as selectlist
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user:goal_expansion(include(Meta, ListIn, ListOut), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(include, 3, Proto, GoalName),
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append(MetaVars, [ListIn, ListOut], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[], []], Base),
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append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
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append_args(Pred, [In], Apply),
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append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :-
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(Apply -> Outs = [In|NOuts]; Outs = NOuts),
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RecursiveCall)
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], Module).
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user:goal_expansion(exclude(Meta, ListIn, ListOut), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
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!,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
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% the new goal
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pred_name(exclude, 3, Proto, GoalName),
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append(MetaVars, [ListIn, ListOut], GoalArgs),
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Goal =.. [GoalName|GoalArgs],
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% the new predicate declaration
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HeadPrefix =.. [GoalName|PredVars],
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append_args(HeadPrefix, [[], []], Base),
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append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
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append_args(Pred, [In], Apply),
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append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
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compile_aux([
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Base,
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(RecursionHead :-
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(Apply -> Outs = [In|NOuts]; Outs = NOuts),
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RecursiveCall)
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], Module).
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user:goal_expansion(partition(Meta, ListIn, List1, List2), Mod, Goal) :-
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goal_expansion_allowed,
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callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(partition, 4, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, List1, List2], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], [], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs1, Outs2], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts1, NOuts2], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
(Apply -> Outs1 = [In|NOuts1], Outs2 = NOuts2; Outs1 = NOuts1, Outs2 = [In|NOuts2]),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(partition(Meta, ListIn, List1, List2, List3), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(partition2, 5, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, List1, List2, List3], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], [], [], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs1, Outs2, Outs3], RecursionHead),
|
||||
append_args(Pred, [In,Diff], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts1, NOuts2, NOuts3], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(Diff == (<) ->
|
||||
Outs1 = [In|NOuts1],
|
||||
Outs2 = NOuts2,
|
||||
Outs3 = NOuts3
|
||||
;
|
||||
Diff == (=) ->
|
||||
Outs1 = NOuts1,
|
||||
Outs2 = [In|NOuts2],
|
||||
Outs3 = NOuts3
|
||||
;
|
||||
Diff == (>) ->
|
||||
Outs1 = NOuts1,
|
||||
Outs2 = NOuts2,
|
||||
Outs3 = [In|NOuts3]
|
||||
;
|
||||
error:must_be(oneof([<,=,>]), Diff)
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(convlist(Meta, ListIn, ListOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(convlist, 3, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, ListOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
|
||||
append_args(Pred, [In, Out], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
(Apply -> Outs = [Out|NOuts]; Outs = NOuts),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(sumlist(Meta, List, AccIn, AccOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(sumlist, 4, Proto, GoalName),
|
||||
append(MetaVars, [List, AccIn, AccOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], Acc, Acc], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Acc1, Acc2], RecursionHead),
|
||||
append_args(Pred, [In, Acc1, Acc3], Apply),
|
||||
append_args(HeadPrefix, [Ins, Acc3, Acc2], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :- Apply, RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(mapargs(Meta, In, Out), _Module, NewGoal) :-
|
||||
goal_expansion_allowed,
|
||||
( var(Out)
|
||||
->
|
||||
NewGoal = (
|
||||
In =.. [F|InArgs],
|
||||
maplist(Meta, InArgs, OutArgs),
|
||||
Out =.. [F|OutArgs]
|
||||
)
|
||||
;
|
||||
NewGoal = (
|
||||
Out =.. [F|OutArgs],
|
||||
maplist(Meta, InArgs, OutArgs),
|
||||
In =.. [F|InArgs]
|
||||
)
|
||||
).
|
||||
|
||||
user:goal_expansion(sumargs(Meta, Term, AccIn, AccOut), _Module, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
Goal = (
|
||||
Term =.. [_|TermArgs],
|
||||
sumlist(Meta, TermArgs, AccIn, AccOut)
|
||||
).
|
||||
|
||||
user:goal_expansion(mapnodes(Meta, InTerm, OutTerm), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(mapnodes, 3, Proto, GoalName),
|
||||
append(MetaVars, [[InTerm], [OutTerm]], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], [Out|Outs]], RecursionHead),
|
||||
append_args(Pred, [In, Temp], Apply),
|
||||
append_args(HeadPrefix, [InArgs, OutArgs], SubRecursiveCall),
|
||||
append_args(HeadPrefix, [Ins, Outs], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(compound(Temp)
|
||||
->
|
||||
Temp =.. [F|InArgs],
|
||||
SubRecursiveCall,
|
||||
Out =.. [F|OutArgs]
|
||||
;
|
||||
Out = Temp
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(checknodes(Meta, Term), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(checknodes, 2, Proto, GoalName),
|
||||
append(MetaVars, [[Term]], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[]], Base),
|
||||
append_args(HeadPrefix, [[In|Ins]], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Args], SubRecursiveCall),
|
||||
append_args(HeadPrefix, [Ins], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(compound(In)
|
||||
->
|
||||
In =.. [_|Args],SubRecursiveCall
|
||||
;
|
||||
true
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(sumnodes(Meta, Term, AccIn, AccOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(sumnodes, 4, Proto, GoalName),
|
||||
append(MetaVars, [[Term], AccIn, AccOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], Acc, Acc], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Acc1, Acc2], RecursionHead),
|
||||
append_args(Pred, [In, Acc1, Acc3], Apply),
|
||||
append_args(HeadPrefix, [Args, Acc3, Acc4], SubRecursiveCall),
|
||||
append_args(HeadPrefix, [Ins, Acc4, Acc2], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(compound(In)
|
||||
->
|
||||
In =.. [_|Args],SubRecursiveCall
|
||||
;
|
||||
Acc3 = Acc4
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
% stolen from SWI-Prolog
|
||||
user:goal_expansion(phrase(NT,Xs), NTXsNil) :-
|
||||
user:goal_expansion(phrase(NT,Xs,[]), NTXsNil).
|
||||
user:goal_expansion(phrase(NT,Xs0,Xs), _Mod, NewGoal) :-
|
||||
goal_expansion_allowed,
|
||||
Goal = phrase(NT,Xs0,Xs),
|
||||
nonvar(NT),
|
||||
catch('$translate_rule'((pseudo_nt --> NT), Rule),
|
||||
error(Pat,ImplDep),
|
||||
( \+ harmless_dcgexception(Pat),
|
||||
throw(error(Pat,ImplDep))
|
||||
)),
|
||||
Rule = (pseudo_nt(Xs0c,Xsc) :- NewGoal0),
|
||||
Goal \== NewGoal0,
|
||||
% apply translation only if we are safe
|
||||
\+ contains_illegal_dcgnt(NT), !,
|
||||
( var(Xsc), Xsc \== Xs0c
|
||||
-> Xs = Xsc, NewGoal1 = NewGoal0
|
||||
; NewGoal1 = (NewGoal0, Xsc = Xs)
|
||||
),
|
||||
( var(Xs0c)
|
||||
-> Xs0 = Xs0c,
|
||||
NewGoal = NewGoal1
|
||||
; ( Xs0 = Xs0c, NewGoal1 ) = NewGoal
|
||||
).
|
||||
|
||||
%%%%%%%%%%%%%%%%%%%%
|
||||
% utilities
|
||||
%%%%%%%%%%%%%%%%%%%%
|
||||
|
||||
compile_aux([Clause|Clauses], Module) :-
|
||||
% compile the predicat declaration if needed
|
||||
( Clause = (Head :- _)
|
||||
; Clause = Head ),
|
||||
!,
|
||||
functor(Head, F, N),
|
||||
( current_predicate(Module:F/N)
|
||||
->
|
||||
true
|
||||
;
|
||||
% format("*** Creating auxiliary predicate ~q~n", [F/N]),
|
||||
% checklist(portray_clause, [Clause|Clauses]),
|
||||
compile_term([Clause|Clauses], Module)
|
||||
).
|
||||
|
||||
compile_term([], _).
|
||||
compile_term([Clause|Clauses], Module) :-
|
||||
assert_static(Module:Clause),
|
||||
compile_term(Clauses, Module).
|
||||
|
||||
append_args(Term, Args, NewTerm) :-
|
||||
Term =.. [Meta|OldArgs],
|
||||
append(OldArgs, Args, GoalArgs),
|
||||
NewTerm =.. [Meta|GoalArgs].
|
||||
|
||||
aux_preds(Module:Meta, MetaVars, Pred, PredVars, Proto, _, OModule) :- !,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Module, OModule).
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Module, Module) :-
|
||||
Meta =.. [F|Args],
|
||||
aux_args(Args, MetaVars, PredArgs, PredVars, ProtoArgs),
|
||||
Pred =.. [F|PredArgs],
|
||||
Proto =.. [F|ProtoArgs].
|
||||
|
||||
aux_args([], [], [], [], []).
|
||||
aux_args([Arg|Args], [Arg|MVars], [PVar|PArgs], [PVar|PVars], ['_'|ProtoArgs]) :-
|
||||
var(Arg),
|
||||
!,
|
||||
aux_args(Args, MVars, PArgs, PVars, ProtoArgs).
|
||||
aux_args([Arg|Args], MVars, [Arg|PArgs], PVars, [Arg|ProtoArgs]) :-
|
||||
aux_args(Args, MVars, PArgs, PVars, ProtoArgs).
|
||||
|
||||
pred_name(Macro, Arity, Proto, Name) :-
|
||||
format_to_chars('\'~a(~d,~w)\'.',[Macro, Arity, Proto], Chars),
|
||||
read_from_chars(Chars, Name).
|
||||
|
||||
harmless_dcgexception(instantiation_error). % ex: phrase(([1],x:X,[3]),L)
|
||||
harmless_dcgexception(type_error(callable,_)). % ex: phrase(27,L)
|
||||
|
||||
|
||||
%% contains_illegal_dcgnt(+Term) is semidet.
|
||||
%
|
||||
% True if Term contains a non-terminal we cannot deal with using
|
||||
% goal-expansion. The test is too general approximation, but safe.
|
||||
|
||||
contains_illegal_dcgnt(NT) :-
|
||||
sub_term(I, NT),
|
||||
nonvar(I),
|
||||
( I = ! ; I = phrase(_,_,_) ), !.
|
||||
% write(contains_illegal_nt(NT)), % JW: we do not want to write
|
||||
% nl.
|
||||
|
||||
goal_expansion_allowed :-
|
||||
\+ current_prolog_flag(xref, true).
|
||||
|
||||
@ -33,6 +33,9 @@
|
||||
:- use_module(library(arg),
|
||||
[genarg/3]).
|
||||
|
||||
:- use_module(library(apply_macros),
|
||||
[]).
|
||||
|
||||
:- use_module(library(terms),
|
||||
[subsumes/2,
|
||||
term_hash/2,
|
||||
@ -54,6 +57,9 @@
|
||||
|
||||
:- multifile user:term_expansion/2.
|
||||
:- multifile user:goal_expansion/3.
|
||||
:- multifile user:goal_expansion/2.
|
||||
|
||||
:- dynamic user:goal_expansion/2.
|
||||
|
||||
:- multifile swi_predicate_table/4.
|
||||
|
||||
@ -344,12 +350,7 @@ prolog:(Term1 =@= Term2) :-
|
||||
% the predicate deterministic under normal circumstances.
|
||||
|
||||
prolog:maplist(Goal, List) :-
|
||||
maplist2(List, Goal).
|
||||
|
||||
maplist2([], _).
|
||||
maplist2([Elem|Tail], Goal) :-
|
||||
call(Goal, Elem),
|
||||
maplist2(Tail, Goal).
|
||||
apply_macros:maplist(List, Goal).
|
||||
|
||||
% maplist(:Goal, ?List1, ?List2)
|
||||
%
|
||||
@ -357,12 +358,7 @@ maplist2([Elem|Tail], Goal) :-
|
||||
% of elements of List1 and List2.
|
||||
|
||||
prolog:maplist(Goal, List1, List2) :-
|
||||
maplist2(List1, List2, Goal).
|
||||
|
||||
maplist2([], [], _).
|
||||
maplist2([Elem1|Tail1], [Elem2|Tail2], Goal) :-
|
||||
call(Goal, Elem1, Elem2),
|
||||
maplist2(Tail1, Tail2, Goal).
|
||||
apply_macros:maplist(List1, Goal, List2).
|
||||
|
||||
% maplist(:Goal, ?List1, ?List2, ?List3)
|
||||
%
|
||||
@ -370,12 +366,7 @@ maplist2([Elem1|Tail1], [Elem2|Tail2], Goal) :-
|
||||
% of elements of List1..List3.
|
||||
|
||||
prolog:maplist(Goal, List1, List2, List3) :-
|
||||
maplist2(List1, List2, List3, Goal).
|
||||
|
||||
maplist2([], [], [], _).
|
||||
maplist2([Elem1|Tail1], [Elem2|Tail2], [Elem3|Tail3], Goal) :-
|
||||
call(Goal, Elem1, Elem2, Elem3),
|
||||
maplist2(Tail1, Tail2, Tail3, Goal).
|
||||
apply_macros:maplist(List1, Goal, List2, List3).
|
||||
|
||||
% maplist(:Goal, ?List1, ?List2, ?List3, List4)
|
||||
%
|
||||
@ -383,12 +374,7 @@ maplist2([Elem1|Tail1], [Elem2|Tail2], [Elem3|Tail3], Goal) :-
|
||||
% quadruples of elements of List1..List4
|
||||
|
||||
prolog:maplist(Goal, List1, List2, List3, List4) :-
|
||||
maplist2(List1, List2, List3, List4, Goal).
|
||||
|
||||
maplist2([], [], [], [], _).
|
||||
maplist2([Elem1|Tail1], [Elem2|Tail2], [Elem3|Tail3], [Elem4|Tail4], Goal) :-
|
||||
call(Goal, Elem1, Elem2, Elem3, Elem4),
|
||||
maplist2(Tail1, Tail2, Tail3, Tail4, Goal).
|
||||
apply_macros:maplist(List1, Goal, List2, List3, List4).
|
||||
|
||||
prolog:compile_aux_clauses([]).
|
||||
prolog:compile_aux_clauses([(:- G)|Cls]) :-
|
||||
|
||||
488
library/expand_macros.yap
Normal file
488
library/expand_macros.yap
Normal file
@ -0,0 +1,488 @@
|
||||
|
||||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||||
%%
|
||||
%% preprocessing for meta-calls
|
||||
%%
|
||||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||||
|
||||
:- use_module(library(lists), [append/3]).
|
||||
:- use_module(library(charsio), [format_to_chars/3, read_from_chars/2]).
|
||||
:- use_module(library(error), [must_be/2]).
|
||||
|
||||
:- multifile user:goal_expansion/3.
|
||||
|
||||
user:goal_expansion(maplist(Meta, ListIn, ListOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(maplist, 3, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, ListOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], [Out|Outs]], RecursionHead),
|
||||
append_args(Pred, [In, Out], Apply),
|
||||
append_args(HeadPrefix, [Ins, Outs], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :- Apply, RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(checklist(Meta, List), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(checklist, 2, Proto, GoalName),
|
||||
append(MetaVars, [List], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[]], Base),
|
||||
append_args(HeadPrefix, [[In|Ins]], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Ins], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :- Apply, RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(maplist(Meta, List), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(maplist, 2, Proto, GoalName),
|
||||
append(MetaVars, [List], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[]], Base),
|
||||
append_args(HeadPrefix, [[In|Ins]], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Ins], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :- Apply, RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(maplist(Meta, L1, L2, L3), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(maplist, 4, Proto, GoalName),
|
||||
append(MetaVars, [L1, L2, L3], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], [], []], Base),
|
||||
append_args(HeadPrefix, [[A1|A1s], [A2|A2s], [A3|A3s]], RecursionHead),
|
||||
append_args(Pred, [A1, A2, A3], Apply),
|
||||
append_args(HeadPrefix, [A1s, A2s, A3s], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :- Apply, RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(maplist(Meta, L1, L2, L3, L4), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(maplist, 5, Proto, GoalName),
|
||||
append(MetaVars, [L1, L2, L3, L4], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], [], [], []], Base),
|
||||
append_args(HeadPrefix, [[A1|A1s], [A2|A2s], [A3|A3s], [A4|A4s]], RecursionHead),
|
||||
append_args(Pred, [A1, A2, A3, A4], Apply),
|
||||
append_args(HeadPrefix, [A1s, A2s, A3s, A4s], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :- Apply, RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(selectlist(Meta, ListIn, ListOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(selectlist, 3, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, ListOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
(Apply -> Outs = [In|NOuts]; Outs = NOuts),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
% same as selectlist
|
||||
user:goal_expansion(include(Meta, ListIn, ListOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(include, 3, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, ListOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
(Apply -> Outs = [In|NOuts]; Outs = NOuts),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(exclude(Meta, ListIn, ListOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(exclude, 3, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, ListOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
(Apply -> Outs = [In|NOuts]; Outs = NOuts),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(partition(Meta, ListIn, List1, List2), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(partition, 4, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, List1, List2], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], [], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs1, Outs2], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts1, NOuts2], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
(Apply -> Outs1 = [In|NOuts1], Outs2 = NOuts2; Outs1 = NOuts1, Outs2 = [In|NOuts2]),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(partition(Meta, ListIn, List1, List2, List3), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(partition2, 5, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, List1, List2, List3], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], [], [], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs1, Outs2, Outs3], RecursionHead),
|
||||
append_args(Pred, [In,Diff], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts1, NOuts2, NOuts3], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(Diff == (<) ->
|
||||
Outs1 = [In|NOuts1],
|
||||
Outs2 = NOuts2,
|
||||
Outs3 = NOuts3
|
||||
;
|
||||
Diff == (=) ->
|
||||
Outs1 = NOuts1,
|
||||
Outs2 = [In|NOuts2],
|
||||
Outs3 = NOuts3
|
||||
;
|
||||
Diff == (>) ->
|
||||
Outs1 = NOuts1,
|
||||
Outs2 = NOuts2,
|
||||
Outs3 = [In|NOuts3]
|
||||
;
|
||||
error:must_be(oneof([<,=,>]), Diff)
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(convlist(Meta, ListIn, ListOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(convlist, 3, Proto, GoalName),
|
||||
append(MetaVars, [ListIn, ListOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
|
||||
append_args(Pred, [In, Out], Apply),
|
||||
append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
(Apply -> Outs = [Out|NOuts]; Outs = NOuts),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(sumlist(Meta, List, AccIn, AccOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(sumlist, 4, Proto, GoalName),
|
||||
append(MetaVars, [List, AccIn, AccOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], Acc, Acc], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Acc1, Acc2], RecursionHead),
|
||||
append_args(Pred, [In, Acc1, Acc3], Apply),
|
||||
append_args(HeadPrefix, [Ins, Acc3, Acc2], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :- Apply, RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(mapargs(Meta, In, Out), _Module, NewGoal) :-
|
||||
goal_expansion_allowed,
|
||||
( var(Out)
|
||||
->
|
||||
NewGoal = (
|
||||
In =.. [F|InArgs],
|
||||
maplist(Meta, InArgs, OutArgs),
|
||||
Out =.. [F|OutArgs]
|
||||
)
|
||||
;
|
||||
NewGoal = (
|
||||
Out =.. [F|OutArgs],
|
||||
maplist(Meta, InArgs, OutArgs),
|
||||
In =.. [F|InArgs]
|
||||
)
|
||||
).
|
||||
|
||||
user:goal_expansion(sumargs(Meta, Term, AccIn, AccOut), _Module, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
Goal = (
|
||||
Term =.. [_|TermArgs],
|
||||
sumlist(Meta, TermArgs, AccIn, AccOut)
|
||||
).
|
||||
|
||||
user:goal_expansion(mapnodes(Meta, InTerm, OutTerm), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(mapnodes, 3, Proto, GoalName),
|
||||
append(MetaVars, [[InTerm], [OutTerm]], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], []], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], [Out|Outs]], RecursionHead),
|
||||
append_args(Pred, [In, Temp], Apply),
|
||||
append_args(HeadPrefix, [InArgs, OutArgs], SubRecursiveCall),
|
||||
append_args(HeadPrefix, [Ins, Outs], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(compound(Temp)
|
||||
->
|
||||
Temp =.. [F|InArgs],
|
||||
SubRecursiveCall,
|
||||
Out =.. [F|OutArgs]
|
||||
;
|
||||
Out = Temp
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(checknodes(Meta, Term), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(checknodes, 2, Proto, GoalName),
|
||||
append(MetaVars, [[Term]], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[]], Base),
|
||||
append_args(HeadPrefix, [[In|Ins]], RecursionHead),
|
||||
append_args(Pred, [In], Apply),
|
||||
append_args(HeadPrefix, [Args], SubRecursiveCall),
|
||||
append_args(HeadPrefix, [Ins], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(compound(In)
|
||||
->
|
||||
In =.. [_|Args],SubRecursiveCall
|
||||
;
|
||||
true
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
|
||||
user:goal_expansion(sumnodes(Meta, Term, AccIn, AccOut), Mod, Goal) :-
|
||||
goal_expansion_allowed,
|
||||
callable(Meta),
|
||||
!,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Mod, Module),
|
||||
% the new goal
|
||||
pred_name(sumnodes, 4, Proto, GoalName),
|
||||
append(MetaVars, [[Term], AccIn, AccOut], GoalArgs),
|
||||
Goal =.. [GoalName|GoalArgs],
|
||||
% the new predicate declaration
|
||||
HeadPrefix =.. [GoalName|PredVars],
|
||||
append_args(HeadPrefix, [[], Acc, Acc], Base),
|
||||
append_args(HeadPrefix, [[In|Ins], Acc1, Acc2], RecursionHead),
|
||||
append_args(Pred, [In, Acc1, Acc3], Apply),
|
||||
append_args(HeadPrefix, [Args, Acc3, Acc4], SubRecursiveCall),
|
||||
append_args(HeadPrefix, [Ins, Acc4, Acc2], RecursiveCall),
|
||||
compile_aux([
|
||||
Base,
|
||||
(RecursionHead :-
|
||||
Apply,
|
||||
(compound(In)
|
||||
->
|
||||
In =.. [_|Args],SubRecursiveCall
|
||||
;
|
||||
Acc3 = Acc4
|
||||
),
|
||||
RecursiveCall)
|
||||
], Module).
|
||||
% stolen from SWI-Prolog
|
||||
user:goal_expansion(phrase(NT,Xs), Mod, NTXsNil) :-
|
||||
user:goal_expansion(phrase(NT,Xs,[]), Mod, NTXsNil).
|
||||
user:goal_expansion(phrase(NT,Xs0,Xs), _Mod, NewGoal) :-
|
||||
goal_expansion_allowed,
|
||||
Goal = phrase(NT,Xs0,Xs),
|
||||
nonvar(NT),
|
||||
catch('$translate_rule'((pseudo_nt --> NT), Rule),
|
||||
error(Pat,ImplDep),
|
||||
( \+ harmless_dcgexception(Pat),
|
||||
throw(error(Pat,ImplDep))
|
||||
)),
|
||||
Rule = (pseudo_nt(Xs0c,Xsc) :- NewGoal0),
|
||||
Goal \== NewGoal0,
|
||||
% apply translation only if we are safe
|
||||
\+ contains_illegal_dcgnt(NT), !,
|
||||
( var(Xsc), Xsc \== Xs0c
|
||||
-> Xs = Xsc, NewGoal1 = NewGoal0
|
||||
; NewGoal1 = (NewGoal0, Xsc = Xs)
|
||||
),
|
||||
( var(Xs0c)
|
||||
-> Xs0 = Xs0c,
|
||||
NewGoal = NewGoal1
|
||||
; ( Xs0 = Xs0c, NewGoal1 ) = NewGoal
|
||||
).
|
||||
|
||||
%%%%%%%%%%%%%%%%%%%%
|
||||
% utilities
|
||||
%%%%%%%%%%%%%%%%%%%%
|
||||
|
||||
compile_aux([Clause|Clauses], Module) :-
|
||||
% compile the predicat declaration if needed
|
||||
( Clause = (Head :- _)
|
||||
; Clause = Head ),
|
||||
!,
|
||||
functor(Head, F, N),
|
||||
( current_predicate(Module:F/N)
|
||||
->
|
||||
true
|
||||
;
|
||||
% format("*** Creating auxiliary predicate ~q~n", [F/N]),
|
||||
% checklist(portray_clause, [Clause|Clauses]),
|
||||
compile_term([Clause|Clauses], Module)
|
||||
).
|
||||
|
||||
compile_term([], _).
|
||||
compile_term([Clause|Clauses], Module) :-
|
||||
assert_static(Module:Clause),
|
||||
compile_term(Clauses, Module).
|
||||
|
||||
append_args(Term, Args, NewTerm) :-
|
||||
Term =.. [Meta|OldArgs],
|
||||
append(OldArgs, Args, GoalArgs),
|
||||
NewTerm =.. [Meta|GoalArgs].
|
||||
|
||||
aux_preds(Module:Meta, MetaVars, Pred, PredVars, Proto, _, OModule) :- !,
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Module, OModule).
|
||||
aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Module, Module) :-
|
||||
Meta =.. [F|Args],
|
||||
aux_args(Args, MetaVars, PredArgs, PredVars, ProtoArgs),
|
||||
Pred =.. [F|PredArgs],
|
||||
Proto =.. [F|ProtoArgs].
|
||||
|
||||
aux_args([], [], [], [], []).
|
||||
aux_args([Arg|Args], [Arg|MVars], [PVar|PArgs], [PVar|PVars], ['_'|ProtoArgs]) :-
|
||||
var(Arg),
|
||||
!,
|
||||
aux_args(Args, MVars, PArgs, PVars, ProtoArgs).
|
||||
aux_args([Arg|Args], MVars, [Arg|PArgs], PVars, [Arg|ProtoArgs]) :-
|
||||
aux_args(Args, MVars, PArgs, PVars, ProtoArgs).
|
||||
|
||||
pred_name(Macro, Arity, Proto, Name) :-
|
||||
format_to_chars('\'~a(~d,~w)\'.',[Macro, Arity, Proto], Chars),
|
||||
read_from_chars(Chars, Name).
|
||||
|
||||
harmless_dcgexception(instantiation_error). % ex: phrase(([1],x:X,[3]),L)
|
||||
harmless_dcgexception(type_error(callable,_)). % ex: phrase(27,L)
|
||||
|
||||
|
||||
%% contains_illegal_dcgnt(+Term) is semidet.
|
||||
%
|
||||
% True if Term contains a non-terminal we cannot deal with using
|
||||
% goal-expansion. The test is too general approximation, but safe.
|
||||
|
||||
contains_illegal_dcgnt(NT) :-
|
||||
sub_term(I, NT),
|
||||
nonvar(I),
|
||||
( I = ! ; I = phrase(_,_,_) ), !.
|
||||
% write(contains_illegal_nt(NT)), % JW: we do not want to write
|
||||
% nl.
|
||||
|
||||
goal_expansion_allowed :-
|
||||
\+ current_prolog_flag(xref, true).
|
||||
@ -1,103 +0,0 @@
|
||||
/* $Id: maplist.pl,v 1.2 2008-06-05 19:33:51 rzf Exp $
|
||||
|
||||
Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: jan@swi.psy.uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 1985-2002, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(maplist,
|
||||
[ maplist/2, % :Goal, +List
|
||||
maplist/3, % :Goal, ?List1, ?List2
|
||||
maplist/4, % :Goal, ?List1, ?List2, ?List3
|
||||
maplist/5, % :Goal, ?List1, ?List2, ?List3, List4
|
||||
forall/2 % :Goal, :Goal
|
||||
]).
|
||||
|
||||
:- module_transparent
|
||||
maplist/2,
|
||||
maplist2/2,
|
||||
maplist/3,
|
||||
maplist2/3,
|
||||
maplist/4,
|
||||
maplist2/4,
|
||||
maplist/5,
|
||||
maplist2/5,
|
||||
forall/2.
|
||||
|
||||
% maplist(:Goal, +List)
|
||||
%
|
||||
% True if Goal can succesfully be applied on all elements of List.
|
||||
% Arguments are reordered to gain performance as well as to make
|
||||
% the predicate deterministic under normal circumstances.
|
||||
|
||||
maplist(Goal, List) :-
|
||||
maplist2(List, Goal).
|
||||
|
||||
maplist2([], _).
|
||||
maplist2([Elem|Tail], Goal) :-
|
||||
call(Goal, Elem),
|
||||
maplist2(Tail, Goal).
|
||||
|
||||
% maplist(:Goal, ?List1, ?List2)
|
||||
%
|
||||
% True if Goal can succesfully be applied to all succesive pairs
|
||||
% of elements of List1 and List2.
|
||||
|
||||
maplist(Goal, List1, List2) :-
|
||||
maplist2(List1, List2, Goal).
|
||||
|
||||
maplist2([], [], _).
|
||||
maplist2([Elem1|Tail1], [Elem2|Tail2], Goal) :-
|
||||
call(Goal, Elem1, Elem2),
|
||||
maplist2(Tail1, Tail2, Goal).
|
||||
|
||||
% maplist(:Goal, ?List1, ?List2, ?List3)
|
||||
%
|
||||
% True if Goal can succesfully be applied to all succesive triples
|
||||
% of elements of List1..List3.
|
||||
|
||||
maplist(Goal, List1, List2, List3) :-
|
||||
maplist2(List1, List2, List3, Goal).
|
||||
|
||||
maplist2([], [], [], _).
|
||||
maplist2([Elem1|Tail1], [Elem2|Tail2], [Elem3|Tail3], Goal) :-
|
||||
call(Goal, Elem1, Elem2, Elem3),
|
||||
maplist2(Tail1, Tail2, Tail3, Goal).
|
||||
|
||||
% maplist(:Goal, ?List1, ?List2, ?List3, List4)
|
||||
%
|
||||
% True if Goal can succesfully be applied to all succesive
|
||||
% quadruples of elements of List1..List4
|
||||
|
||||
maplist(Goal, List1, List2, List3, List4) :-
|
||||
maplist2(List1, List2, List3, List4, Goal).
|
||||
|
||||
maplist2([], [], [], [], _).
|
||||
maplist2([Elem1|Tail1], [Elem2|Tail2], [Elem3|Tail3], [Elem4|Tail4], Goal) :-
|
||||
call(Goal, Elem1, Elem2, Elem3, Elem4),
|
||||
maplist2(Tail1, Tail2, Tail3, Tail4, Goal).
|
||||
|
||||
242
library/maplist.yap
Normal file
242
library/maplist.yap
Normal file
@ -0,0 +1,242 @@
|
||||
% Also has code from:
|
||||
% File : APPLIC.PL
|
||||
% Author : Lawrence Byrd + Richard A. O'Keefe
|
||||
% Updated: 4 August 1984 and Ken Johnson 11-8-87
|
||||
% Purpose: Various "function" application routines based on apply/2.
|
||||
% Needs : append/3 from listut.pl
|
||||
|
||||
|
||||
% File : apply_macros.yap
|
||||
% Author : E. Alphonse from code by Joachim Schimpf, Jan Wielemaker, Vitor Santos Costa
|
||||
% Purpose: Macros to apply a predicate to all elements
|
||||
% of a list or to all sub-terms of a term.
|
||||
|
||||
|
||||
:- module(maplist,
|
||||
[ maplist/2, % :Goal, +List
|
||||
maplist/3, % :Goal, ?List1, ?List2
|
||||
maplist/4, % :Goal, ?List1, ?List2, ?List3
|
||||
maplist/5, % :Goal, ?List1, ?List2, ?List3, List4
|
||||
forall/2 % :Goal, :Goal
|
||||
]).
|
||||
|
||||
:- meta_predicate
|
||||
selectlist(:,+,-),
|
||||
checklist(:,+),
|
||||
maplist(:,+),
|
||||
maplist(:,+,-),
|
||||
maplist(:,+,+,-),
|
||||
maplist(:,+,+,+,-),
|
||||
convlist(:,+,-),
|
||||
mapargs(:,+,-),
|
||||
mapargs_args(:,+,-,+),
|
||||
sumargs(:,+,+,-),
|
||||
sumargs_args(:,+,+,-,+),
|
||||
mapnodes(:,+,-),
|
||||
mapnodes_list(:,+,-),
|
||||
checknodes(:,+),
|
||||
checknodes_list(:,+),
|
||||
sumlist(:,+,+,-),
|
||||
sumnodes(:,+,+,-),
|
||||
sumnodes_body(:,+,+,-,+,+),
|
||||
include(:,+,-),
|
||||
exclude(:,+,-),
|
||||
partition(:,+,-,-),
|
||||
partition(:,+,-,-,-).
|
||||
|
||||
|
||||
:- use_module(library(error), [must_be/2]).
|
||||
|
||||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||||
%
|
||||
% Definitions for Metacalls
|
||||
%
|
||||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||||
|
||||
include(G,In,Out) :-
|
||||
selectlist(G, In, Out).
|
||||
|
||||
selectlist(_, [], []).
|
||||
selectlist(Pred, [In|ListIn], ListOut) :-
|
||||
(call(Pred, In) ->
|
||||
ListOut = [In|NewListOut]
|
||||
;
|
||||
ListOut = NewListOut
|
||||
),
|
||||
selectlist(Pred, ListIn, NewListOut).
|
||||
|
||||
exclude(_, [], []).
|
||||
exclude(Pred, [In|ListIn], ListOut) :-
|
||||
(call(Pred, In) ->
|
||||
ListOut = NewListOut
|
||||
;
|
||||
ListOut = [In|NewListOut]
|
||||
),
|
||||
exclude(Pred, ListIn, NewListOut).
|
||||
|
||||
partition(_, [], [], []).
|
||||
partition(Pred, [In|ListIn], List1, List2) :-
|
||||
(call(Pred, In) ->
|
||||
List1 = [In|RList1],
|
||||
List2 = RList2
|
||||
;
|
||||
List1 = RList1,
|
||||
List2 = [In|RList2]
|
||||
),
|
||||
partition(Pred, ListIn, RList1, RList2).
|
||||
|
||||
partition(_, [], [], [], []).
|
||||
partition(Pred, [In|ListIn], List1, List2, List3) :-
|
||||
call(Pred, In, Diff),
|
||||
( Diff == (<) ->
|
||||
List1 = [In|RList1],
|
||||
List2 = RList2,
|
||||
List3 = RList3
|
||||
;
|
||||
Diff == (=) ->
|
||||
List1 = RList1,
|
||||
List2 = [In|RList2],
|
||||
List3 = RList3
|
||||
;
|
||||
Diff == (>) ->
|
||||
List1 = RList1,
|
||||
List2 = RList2,
|
||||
List3 = [In|RList3]
|
||||
;
|
||||
must_be(oneof([<,=,>]), Diff)
|
||||
),
|
||||
partition(Pred, ListIn, RList1, RList2, RList3).
|
||||
|
||||
checklist(_, []).
|
||||
checklist(Pred, [In|ListIn]) :-
|
||||
call(Pred, In),
|
||||
checklist(Pred, ListIn).
|
||||
|
||||
% maplist(Pred, OldList)
|
||||
% succeeds when Pred(Old,New) succeeds for each corresponding
|
||||
% Old in OldList, New in NewList. In InterLisp, this is MAPCAR.
|
||||
% It is also MAP2C. Isn't bidirectionality wonderful?
|
||||
maplist(_, []).
|
||||
maplist(Pred, [In|ListIn]) :-
|
||||
call(Pred, In),
|
||||
maplist(Pred, ListIn).
|
||||
|
||||
% maplist(Pred, OldList, NewList)
|
||||
% succeeds when Pred(Old,New) succeeds for each corresponding
|
||||
% Old in OldList, New in NewList. In InterLisp, this is MAPCAR.
|
||||
% It is also MAP2C. Isn't bidirectionality wonderful?
|
||||
maplist(_, [], []).
|
||||
maplist(Pred, [In|ListIn], [Out|ListOut]) :-
|
||||
call(Pred, In, Out),
|
||||
maplist(Pred, ListIn, ListOut).
|
||||
|
||||
% maplist(Pred, List1, List2, List3)
|
||||
% succeeds when Pred(Old,New) succeeds for each corresponding
|
||||
% Gi in Listi, New in NewList. In InterLisp, this is MAPCAR.
|
||||
% It is also MAP2C. Isn't bidirectionality wonderful?
|
||||
maplist(_, [], [], []).
|
||||
maplist(Pred, [A1|L1], [A2|L2], [A3|L3]) :-
|
||||
call(Pred, A1, A2, A3),
|
||||
maplist(Pred, L1, L2, L3).
|
||||
|
||||
% maplist(Pred, List1, List2, List3, List4)
|
||||
% succeeds when Pred(Old,New) succeeds for each corresponding
|
||||
% Gi in Listi, New in NewList. In InterLisp, this is MAPCAR.
|
||||
% It is also MAP2C. Isn't bidirectionality wonderful?
|
||||
maplist(_, [], [], [], []).
|
||||
maplist(Pred, [A1|L1], [A2|L2], [A3|L3], [A4|L4]) :-
|
||||
call(Pred, A1, A2, A3, A4),
|
||||
maplist(Pred, L1, L2, L3, L4).
|
||||
|
||||
% convlist(Rewrite, OldList, NewList)
|
||||
% is a sort of hybrid of maplist/3 and sublist/3.
|
||||
% Each element of NewList is the image under Rewrite of some
|
||||
% element of OldList, and order is preserved, but elements of
|
||||
% OldList on which Rewrite is undefined (fails) are not represented.
|
||||
% Thus if foo(X,Y) :- integer(X), Y is X+1.
|
||||
% then convlist(foo, [1,a,0,joe(99),101], [2,1,102]).
|
||||
convlist(_, [], []).
|
||||
convlist(Pred, [Old|Olds], NewList) :-
|
||||
call(Pred, Old, New),
|
||||
!,
|
||||
NewList = [New|News],
|
||||
convlist(Pred, Olds, News).
|
||||
convlist(Pred, [_|Olds], News) :-
|
||||
convlist(Pred, Olds, News).
|
||||
|
||||
mapargs(Pred, TermIn, TermOut) :-
|
||||
functor(TermIn, F, N),
|
||||
functor(TermOut, F, N),
|
||||
mapargs_args(Pred, TermIn, TermOut, N).
|
||||
|
||||
mapargs_args(_, _, _, 0) :- !.
|
||||
mapargs_args(Pred, TermIn, TermOut, I) :-
|
||||
arg(I, TermIn, InArg),
|
||||
arg(I, TermOut, OutArg),
|
||||
I1 is I-1,
|
||||
call(Pred, InArg, OutArg),
|
||||
mapargs_args(Pred, TermIn, TermOut, I1).
|
||||
|
||||
sumargs(Pred, Term, A0, A1) :-
|
||||
functor(Term, _, N),
|
||||
sumargs(Pred, Term, A0, A1, N).
|
||||
|
||||
sumargs_args(_, _, A0, A1, 0) :-
|
||||
!,
|
||||
A0 = A1.
|
||||
sumargs_args(Pred, Term, A1, A3, N) :-
|
||||
arg(N, Term, Arg),
|
||||
N1 is N - 1,
|
||||
call(Pred, Arg, A1, A2),
|
||||
sumargs_args(Pred, Term, A2, A3, N1).
|
||||
|
||||
mapnodes(Pred, TermIn, TermOut) :-
|
||||
(atomic(TermIn); var(TermOut)), !,
|
||||
call(Pred, TermIn, TermOut).
|
||||
mapnodes(Pred, TermIn, TermOut) :-
|
||||
call(Pred, TermIn, Temp),
|
||||
Temp =.. [Func|ArgsIn],
|
||||
mapnodes_list(Pred, ArgsIn, ArgsOut),
|
||||
TermOut =.. [Func|ArgsOut].
|
||||
|
||||
mapnodes_list(_, [], []).
|
||||
appnodes_list(Pred, [TermIn|ArgsIn], [TermOut|ArgsOut]) :-
|
||||
mapnodes(Pred, TermIn, TermOut),
|
||||
mapnodes_list(Pred, ArgsIn, ArgsOut).
|
||||
|
||||
checknodes(Pred, Term) :-
|
||||
(atomic(Term); var(Term)), !,
|
||||
call(Pred, Term).
|
||||
checknodes(Pred, Term) :-
|
||||
call(Pred, Term),
|
||||
Term =.. [_|Args],
|
||||
checknodes_list(Pred, Args).
|
||||
|
||||
checknodes_list(_, []).
|
||||
checknodes_list(Pred, [Term|Args]) :-
|
||||
checknodes_body(Pred, Term),
|
||||
checknodes_list(Pred, Args).
|
||||
|
||||
sumlist(_, [], Acc, Acc).
|
||||
sumlist(Pred, [H|T], AccIn, AccOut) :-
|
||||
call(Pred, H, AccIn, A1),
|
||||
sumlist(Pred, T, A1, AccOut).
|
||||
|
||||
sumnodes(Pred, Term, A0, A2) :-
|
||||
call(Pred, Term, A0, A1),
|
||||
(compound(Term) ->
|
||||
functor(Term, _, N),
|
||||
sumnodes_body(Pred, Term, A1, A2, 0, N)
|
||||
; % simple term or variable
|
||||
A1 = A2
|
||||
).
|
||||
|
||||
sumnodes_body(Pred, Term, A1, A3, N0, Ar) :-
|
||||
N0 < Ar ->
|
||||
N is N0+1,
|
||||
arg(N, Term, Arg),
|
||||
sumnodes(Pred, Arg, A1, A2),
|
||||
sumnodes_body(Pred, Term, A2, A3, N, Ar)
|
||||
;
|
||||
A1 = A3.
|
||||
|
||||
Reference in New Issue
Block a user