/usr/share/Yap/gensym.yap is in yap 6.2.2-6+b2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | :- module(gensym, [
gensym/2,
reset_gensym/1,
reset_gensym/0
]).
:- dynamic gensym_key/2.
gensym(Atom, New) :-
retract(gensym_key(Atom,Id)), !,
atomic_concat(Atom,Id,New),
NId is Id+1,
assert(gensym_key(Atom,NId)).
gensym(Atom, New) :-
atomic_concat(Atom,1,New),
assert(gensym_key(Atom,2)).
reset_gensym(Atom) :-
retract(gensym_key(Atom,_)).
reset_gensym :-
retractall(gensym_key(_,_)).
|