void RelationExp(out Expression e)
{
Expression e2; Operator op;
AddExp(out e);
while (StartOf(3))
{
if (la.kind == 25)
{
Get();
op = Operator.Lt;
}
else if (la.kind == 26)
{
Get();
op = Operator.Gt;
}
else if (la.kind == 27)
{
Get();
op = Operator.Le;
}
else
{
Get();
op = Operator.Ge;
}
AddExp(out e2);
e = new BinOp(op, e, e2);
}
}
void LogAndExp(out Expression e)
{
Expression e2;
EqualExp(out e);
while (la.kind == 22)
{
Get();
EqualExp(out e2);
e = new BinOp(Operator.And, e, e2);
}
}
void LogOrExp(out Expression e)
{
Expression e2;
LogAndExp(out e);
while (la.kind == 21)
{
Get();
LogAndExp(out e2);
e = new BinOp(Operator.Or, e, e2);
}
}
void MultExp(out Expression e)
{
Expression e2; Operator op;
UnaryExp(out e);
while (la.kind == 18 || la.kind == 31)
{
if (la.kind == 18)
{
Get();
op = Operator.Mul;
}
else
{
Get();
op = Operator.Div;
}
UnaryExp(out e2);
e = new BinOp(op, e, e2);
}
}
void AddExp(out Expression e)
{
Expression e2; Operator op;
MultExp(out e);
while (la.kind == 29 || la.kind == 30)
{
if (la.kind == 29)
{
Get();
op = Operator.Add;
}
else
{
Get();
op = Operator.Sub;
}
MultExp(out e2);
e = new BinOp(op, e, e2);
}
}
void EqualExp(out Expression e)
{
Expression e2; Operator op;
RelationExp(out e);
while (la.kind == 23 || la.kind == 24)
{
if (la.kind == 23)
{
Get();
op = Operator.Eq;
}
else
{
Get();
op = Operator.Ne;
}
RelationExp(out e2);
e = new BinOp(op, e, e2);
}
}