public IExpressionType ExpressionImportFromFormatToModel(IFormat expression)
{
List <IExpressionType> operands = new List <IExpressionType>();
Context ctx = Context.getInstance();
if (expression.getOperands() != null)
{
foreach (var operand in expression.getOperands())
{
operands.Add(ExpressionImportFromFormatToModel(operand));
}
}
switch (expression.getType())
{
case Types.Variable:
Variable newVar = new Variable(expression.getValue());
ctx.addVariable(newVar.getValue(), ctx.getCurrPath(), null);
return(newVar);
case Types.Number:
return(new Number(Convert.ToDouble(expression.getValue())));
case Types.VarDefinition:
Equation ne = new Equation(operands, false);
ctx.changeVariable(((Variable)operands[0]).getValue(), ctx.getCurrPath(), ne);
return(ne);
case Types.SuspendedVarDefinition:
Equation nde = new Equation(operands, true);
ctx.changeVariable(((Variable)operands[0]).getValue(), ctx.getCurrPath(), nde);
return(nde);
case Types.List:
return(new MathList(operands));
case Types.Interval:
return(new Interval(operands));
case Types.FuncExpression:
return(new Function(expression.getType(), operands, expression.getOptions().getValue()));
default:
return(new Function(expression.getType(), operands, ""));
}
}
private void toXml(XmlElement root, XmlDocument doc, IFormat el)
{
switch (el.getType())
{
case Types.VarDefinition:
{
XmlElement elem = doc.CreateElement("Equation");
for (int i = 0; i < el.getOperands().Count; i++)
{
toXml(elem, doc, el.getOperands()[i]);
}
root.AppendChild(elem);
break;
}
case Types.Addition:
{
XmlElement elem = doc.CreateElement("Sum");
for (int i = 0; i < el.getOperands().Count; i++)
{
toXml(elem, doc, el.getOperands()[i]);
}
root.AppendChild(elem);
break;
}
case Types.Multiplication:
{
XmlElement elem = doc.CreateElement("Mul");
for (int i = 0; i < el.getOperands().Count; i++)
{
toXml(elem, doc, el.getOperands()[i]);
}
root.AppendChild(elem);
break;
}
case Types.Fraction:
{
XmlElement elem = doc.CreateElement("Fraction");
XmlElement numerator = doc.CreateElement("Numerator");
toXml(numerator, doc, el.getOperands()[0]);
XmlElement denumerator = doc.CreateElement("Denumerator");
toXml(denumerator, doc, el.getOperands()[1]);
elem.AppendChild(numerator);
elem.AppendChild(denumerator);
root.AppendChild(elem);
break;
}
case Types.Power:
{
XmlElement elem = doc.CreateElement("Power");
XmlElement numerator = doc.CreateElement("Base");
toXml(numerator, doc, el.getOperands()[0]);
XmlElement denumerator = doc.CreateElement("Value");
toXml(denumerator, doc, el.getOperands()[1]);
elem.AppendChild(numerator);
elem.AppendChild(denumerator);
root.AppendChild(elem);
break;
}
case Types.Root:
{
XmlElement elem = doc.CreateElement("Sqrt");
XmlElement numerator = doc.CreateElement("Base");
toXml(numerator, doc, el.getOperands()[0]);
XmlElement denumerator = doc.CreateElement("Value");
toXml(denumerator, doc, el.getOperands()[1]);
elem.AppendChild(numerator);
elem.AppendChild(denumerator);
root.AppendChild(elem);
break;
}
case Types.Number:
case Types.Variable:
{
XmlElement elem = doc.CreateElement("Operand");
elem.InnerText = el.getValue();
root.AppendChild(elem);
break;
}
case Types.FuncDefinition:
/*XmlElement elem1 = doc.CreateElement(el.getOperands()[0].getValue());
* for( int i=1; i< el.getOperands().Count; i++)
* {
* toXml(elem1,doc,el.getOperands()[i]);
* }
* root.AppendChild(elem1);*/
break;
case Types.FuncExpression:
XmlElement elem2 = doc.CreateElement(el.getOperands()[0].getValue());
for (int i = 1; i < el.getOperands().Count; i++)
{
toXml(elem2, doc, el.getOperands()[i]);
}
root.AppendChild(elem2);
break;
default: throw new Exception();
}
}