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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 23 24 25 26 27 28 29 30 31 | {-
This grammar is LALR(1) but not SLR(1) (see dragon book p229).
frown --debug LValue.g
-}
module LValue
where
type Result = Maybe
%{
Terminal = Eq | Star | Id;
Nonterminal = stat | lvalue | rvalue;
stat : lvalue, Eq, rvalue;
| rvalue;
lvalue : Star, rvalue;
| Id;
rvalue : lvalue;
}%
data Terminal = Eq | Star | Id
frown _ = fail "syntax error"
|