diogo/yap-6.3
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fix buggy jubk

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This commit is contained in:
Vítor Santos Costa 2018-11-06 22:47:44 +00:00
parent 54e16f6f19
commit 8d226bbfde
1 changed files with 12 additions and 13 deletions
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17
library/gensym.yap
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@ -28,21 +28,20 @@
:- dynamic gensym_key/2.
init_gensym(Key) :-
assert(gensym_key(Atom,0) ).
retractall(gensym_key(Key,_)),
assert(gensym_key(Key,0) ).
gensym(Atom, New) :-
retract(gensym_key(Atom,Id)), !,
atomic_concat(Atom,Id,New),
gensym(Key, New) :-
retract(gensym_key(Key,Id)), !,
atomic_concat(Key,Id,New),
NId is Id+1,
assert(gensym_key(Atom,NId)).
assert(gensym_key(Key,NId)).
gensym(Atom, New) :-
atomic_concat(Atom,1,New),
assert(gensym_key(Atom,2)).
atomic_concat(Atom,0,New),
assert(gensym_key(Atom,1)).
reset_gensym(Atom) :-
retract(gensym_key(Atom,_)).
reset_gensym :-
retractall(gensym_key(_,_)).