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merge hand1 and hand2

This commit is contained in:
rhiannon morris 2022-12-02 07:31:56 +01:00
parent 45a54fe520
commit 90c2a52251
1 changed files with 7 additions and 13 deletions
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day2.m
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@ -28,15 +28,10 @@
:- mode parser(I) == (pred(out(I), in, out) is semidet).
:- mode parser == parser(ground).
:- pred hand1(move::out, chars::in, chars::out) is semidet.
hand1(rock) --> ['A'].
hand1(paper) --> ['B'].
hand1(scissors) --> ['C'].
:- pred hand2(move::out, chars::in, chars::out) is semidet.
hand2(rock) --> ['X'].
hand2(paper) --> ['Y'].
hand2(scissors) --> ['Z'].
:- pred hand(move::out, chars::in, chars::out) is semidet.
hand(rock) --> ['A']; ['X'].
hand(paper) --> ['B']; ['Y'].
hand(scissors) --> ['C']; ['Z'].
:- pred result(result::out, chars::in, chars::out) is semidet.
result(you) --> ['X'].
@ -44,15 +39,14 @@ result(draw) --> ['Y'].
result(me) --> ['Z'].
:- pred two(parser(T)::parser, parser(U)::parser,
T::out, U::out,
chars::in, chars::out) is semidet.
T::out, U::out, chars::in, chars::out) is semidet.
two(P, Q, A, B) --> P(A), [' '], Q(B).
:- pred line1(moves::out, chars::in, chars::out) is semidet.
line1(A - B) --> two(hand1, hand2, A, B).
line1(A - B) --> two(hand, hand, A, B).
:- pred line2(move_res::out, chars::in, chars::out) is semidet.
line2(A - B) --> two(hand1, result, A, B).
line2(A - B) --> two(hand, result, A, B).
:- pred parse_line(parser(T)::parser, string::in, T::out) is semidet.