/// <summary>
///
/// </summary>
/// <param name="calculator"></param>
/// <param name="el"></param>
/// <param name="option"></param>
/// <returns></returns>
public static CalculatorToken CreateCalculatorToken(Calculator calculator, XmlNode el, SaveOption option)
{
CalculatorToken token;
CalculatorTokenType type = (CalculatorTokenType)int.Parse(el.Attributes["type"].Value);
switch (type)
{
case CalculatorTokenType.BinaryOperator:
token = new CalculatorTokenBinaryOperator(calculator, el, option);
break;
case CalculatorTokenType.Keyword:
token = new CalculatorTokenKeyword(calculator, el, option);
break;
/*case CalculatorTokenType.UnaryOperator:
token = new CalculatorTokenUnaryOperator(el, option);
break;*/
case CalculatorTokenType.Value:
token = new CalculatorTokenValue(calculator, el, option);
break;
case CalculatorTokenType.Function:
token = new CalculatorTokenFunction(calculator, el, option);
break;
default:
throw new InvalidOperationException("unknown CalculatorTokenType");
}
return token;
}
/// <summary>
///
/// </summary>
/// <param name="parent"></param>
/// <param name="index"></param>
/// <returns></returns>
private int CompileBinaryOperator(CalculatorTokenBinaryOperator parent, int index)
{
CalculatorToken left, right;
CompileCalculatorToken(out left, index);
index = CompileCalculatorToken(out right, index + 1);
parent.Left = left;
parent.Right = right;
return index + 1;
}
/// <summary>
///
/// </summary>
/// <param name="calculator"></param>
/// <param name="br"></param>
/// <param name="option"></param>
/// <returns></returns>
public static CalculatorToken CreateCalculatorToken(Calculator calculator, BinaryReader br, SaveOption option)
{
CalculatorToken token;
CalculatorTokenType type = (CalculatorTokenType)br.ReadInt32();
switch (type)
{
case CalculatorTokenType.BinaryOperator:
token = new CalculatorTokenBinaryOperator(calculator, br, option);
break;
case CalculatorTokenType.Keyword:
token = new CalculatorTokenKeyword(calculator, br, option);
break;
/*case CalculatorTokenType.UnaryOperator:
token = new CalculatorTokenUnaryOperator(el, option);
break;*/
case CalculatorTokenType.Value:
token = new CalculatorTokenValue(calculator, br, option);
break;
case CalculatorTokenType.Function:
token = new CalculatorTokenFunction(calculator, br, option);
break;
default:
throw new InvalidOperationException("unknown CalculatorTokenType");
}
return token;
}