public override Calc_node VisitNode([NotNull] CalcParser.NodeContext context)
{
Value_node node = new Value_node();
string text = context.GetText();
if (text.ToLower() == "pi" || text == "π")
{
node.isint = false;
node.fresult = Math.PI;
}
else if (text.ToLower() == "e")
{
node.isint = false;
node.fresult = Math.E;
}
else
{
try
{
node.isint = true;
node.result = Convert.ToInt32(text);
}
catch
{
node.isint = false;
node.fresult = Convert.ToDouble(text);
}
}
return(node);
}
public override Calc_node VisitConstE([NotNull] CalcParser.ConstEContext context)
{
Value_node node = new Value_node
{
isint = false,
fresult = Math.E
};
return(node);
}
