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fix faulty tidy_trail

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This commit is contained in:
Mark Thom
2018-11-15 23:04:52 -07:00
parent 81f4128bc6
commit 6e20f82d6f
2 changed files with 7 additions and 5 deletions
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4
src/prolog/lib/dcgs.pl
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@@ -6,7 +6,7 @@
:- op(1200, xfx, -->).
phrase(G, G) :-
nonvar(G), G = [_|_], !. %, append(G, _, Ls0).
nonvar(G), G = [_|_], !.
phrase(G, Ls0) :-
nonvar(G), G = (G1, G2), !, phrase(G1, Ls0, Ls1), phrase(G2, Ls1, []).
phrase(G, Ls0) :-
@@ -50,7 +50,7 @@ expand_body(Term0, (ModTerm, ModTerms), N0, N) :-
nonvar(Term),
expand_body_term(Term, ModTerm, N0, N1),
expand_body(Terms, ModTerms, N1, N).
expand_body(Term0, ModTerm, N0, N) :-
expand_body(Term0, ModTerm, N0, N) :-
nonvar(Term0),
expand_body_term(Term0, ModTerm, N0, N).