/// <summary>
/// Detects operation
/// </summary>
/// <param name="i">variable number</param>
/// <param name="symbol">Symbol</param>
/// <returns>True if operation is decected and false otherwise</returns>
public bool Detect(int i, MathSymbol symbol)
{
return(detector.Detect(i, symbol));
}
/// <summary>
/// Processes multi operation
/// </summary>
/// <param name="formula">Formula</param>
/// <param name="creator">Formula creator</param>
/// <returns>True if operation exists and false otherwise</returns>
protected bool processMultiOperation(MathFormula formula, IFormulaObjectCreator creator)
{
for (int n = 0; n < creator.MultiOperationCount; n++)
{
IMultiOperationDetector detector = creator.GetMultiOperationDetector(n);
int j = 0;
int m = 0;
int i = 0;
//int opened = 0;
int k = 0;
List <ObjectFormulaTree> list = null;
for (; i < formula.Count; i++)
{
MathSymbol symbol = formula[i];
if (creator.IsBra(symbol))
{
++m;
continue;
}
if (creator.IsKet(symbol))
{
--m;
continue;
}
if (m != 0)
{
continue;
}
if (!detector.Detect(k, symbol))
{
continue;
}
if (list == null)
{
list = new List <ObjectFormulaTree>();
}
MathFormula f = new MathFormula(formula, j, i - 1);
list.Add(CreateTree(f, creator));
++k;
j = i + 1;
if (k == detector.Count)
{
f = new MathFormula(formula, j, formula.Count - 1);
list.Add(CreateTree(f, creator));
object[] types = new object[list.Count];
int nOp = 0;
foreach (ObjectFormulaTree tree in list)
{
types[nOp] = tree.ReturnType;
++nOp;
}
IObjectOperation op = detector.Accept(types);
if (op != null)
{
operation = op;
children = list;
y = new object[list.Count];
return(true);
}
}
}
}
return(false);
}