protected override ProductionBase <int> OnDefineGrammar()
{
var T = new Production <int>();
ProductionBase <int> Num = from n in NUMBER select ParseInt32AnyWay(n);
ProductionBase <int> U =
Num |
from lp in LEFT_PARENTHESIS
from exp in T
from rp in RIGHT_PARENTHESIS
select exp;
var F = new Production <int>();
F.Rule =
U |
from f in F
from op in ASTERISK
from u in U
select f * u;
T.Rule =
F |
from t in T
from op in PLUS
from f in F
select t + f;
ProductionBase <int> E = from t in T
from eos in Grammar.Eos()
select t;
return(E);
}
private ProductionBase <int> SetUpParser()
{
ProductionBase <int> T = null;
ProductionBase <int> Num = from n in NUMBER.AsTerminal() select Int32.Parse(n);
ProductionBase <int> U = Grammar.Union(
Num,
from lp in LEFT_PARENTHESIS.AsTerminal()
from exp in T
from rp in RIGHT_PARENTHESIS.AsTerminal()
select exp
);
ProductionBase <IEnumerable <int> > F1 = null;
F1 = Grammar.Union(
from op in ASTERISK.AsTerminal()
from u in U
from f1 in F1
select new[] { u }.Concat(f1),
Grammar.Empty(Enumerable.Empty <int>())
);
ProductionBase <int> F =
from u in U
from f1 in F1
select f1.Aggregate(u, (a, i) => a *i);
ProductionBase <IEnumerable <int> > T1 = null;
T1 = Grammar.Union(
from op in PLUS.AsTerminal()
from f in F
from t1 in T1
select new[] { f }.Concat(t1),
Grammar.Empty(Enumerable.Empty <int>())
);
T =
from f in F
from t1 in T1
select t1.Aggregate(f, (a, i) => a + i);
ProductionBase <int> E = from t in T
from eos in Grammar.Eos()
select t;
return(E);
}
public AlternationProduction(ProductionBase <T> p1, ProductionBase <T> p2)
{
m_p1 = p1;
m_p2 = p2;
}
internal bool AddEdge(IProduction symbol, LR0State targetState)
{
ProductionBase production = symbol as ProductionBase;
return(m_edges.Add(new LR0Edge(Index, production.Info.Index, targetState.Index)));
}