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maplist/6

This commit is contained in:
Vitor Santos Costa 2018-08-27 19:27:41 +01:00
parent 1e7ee487b6
commit f1066036ff
2 changed files with 40 additions and 5 deletions
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38
library/maplist.yap
View File

@ -15,6 +15,7 @@
maplist/3,
maplist/4,
maplist/5,
maplist/6,
checklist/2,
checknodes/2,
convlist/3,
@ -52,6 +53,7 @@
maplist(2,+,-),
maplist(3,+,+,-),
maplist(4,+,+,+,-),
maplist(5,+,+,+,+,-),
convlist(2,+,-),
convlist(3,?,?,?),
mapnodes(2,+,-),
@ -287,7 +289,8 @@ checklist(Pred, [In|ListIn]) :-
checklist(Pred, ListIn).
/**
@pred maplist(: Pred, ? ListIn)
@pred
ist(: Pred, ? ListIn)
Applies predicate _Pred_( _El_ ) to all
elements _El_ of _ListIn_.
@ -339,6 +342,18 @@ maplist(Pred, [A1|L1], [A2|L2], [A3|L3], [A4|L4]) :-
call(Pred, A1, A2, A3, A4),
maplist(Pred, L1, L2, L3, L4).
/**
@pred maplist(: Pred, ? L1, ? L2, ? L3, ? L4, ? L5)
_L1_, _L2_, _L3_, _L4_ and _L5_ are such that
`call( _Pred_, _A1_, _A2_, _A3_, _A4_,_A5_)` holds
for every corresponding element in lists _L1_, _L2_, _L3_, _L4_ and _L5_.
*/
maplist(_, [], [], [], [], []).
maplist(Pred, [A1|L1], [A2|L2], [A3|L3], [A4|L4], [A5|L5]) :-
call(Pred, A1, A2, A3, A4, A5),
maplist(Pred, L1, L2, L3, L4, L5).
/**
@pred convlist(: Pred, + ListIn, ? ListOut)
@ -793,6 +808,27 @@ goal_expansion(maplist(Meta, L1, L2, L3, L4), Mod:Goal) :-
(RecursionHead :- Apply, RecursiveCall)
], Mod).
goal_expansion(maplist(Meta, L1, L2, L3, L4, L5), Mod:Goal) :-
goal_expansion_allowed,
callable(Meta),
prolog_load_context(module, Mod),
aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
!,
% the new goal
pred_name(maplist, 6, Proto, GoalName),
append(MetaVars, [L1, L2, L3, L4, L5], 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], [A5|A5s]], RecursionHead),
append_args(Pred, [A1, A2, A3, A4, A5], Apply),
append_args(HeadPrefix, [A1s, A2s, A3s, A4s, A5s], RecursiveCall),
compile_aux([
Base,
(RecursionHead :- Apply, RecursiveCall)
], Mod).
goal_expansion(selectlist(Meta, ListIn, ListOut), Mod:Goal) :-
goal_expansion_allowed,
callable(Meta),

7
library/maputils.yap
View File

@ -83,11 +83,10 @@ pred_name(Macro, Arity, _ , Name) :-
prolog_load_context(term_position, Pos),
stream_position_data( line_count, Pos, Line ), !,
transformation_id(Id),
atomic_concat(['$$$ for ',Macro,'/',Arity,', line ',Line,' in ',File,' ',Id], Name).
pred_name(Macro, Arity, _ , Name) :-
atomic_concat(['$$$ for ',Macro,'/',Arity,', line ',Line,' in ',File,'(',P,') #',Id], Name).
pred_name(Macro, Arity, P , Name) :-
transformation_id(Id),
stop_low_level_trace,
atomic_concat(['$$$__expansion__ for ',Macro,'/',Arity,' ',Id], Name).
atomic_concat(['$$$__expansion__ for ',Macro,'/',Arity,'(',P,') #',Id], Name).
transformation_id(Id) :-
retract(number_of_expansions(Id)),