private Function getFunction(SemanticNode node)
{
string functionName = node.getSymbolValue();
if (Calculator.currentNameSpace.hasFunction(functionName))
{
return(Calculator.currentNameSpace.getFunction(functionName));
}
else if (Calculator.globalNameSpace.hasFunction(functionName))
{
return(Calculator.globalNameSpace.getFunction(functionName));
}
else
{
throw new Exception();
}
}
private NumberNode readNumberNode(SemanticNode node)
{
double n = double.Parse(node.getSymbolValue());
return(new NumberNode(n));
}