public void AddToCellTest()
{
Partition p = new Partition();
p.AddToCell(0, 0);
Assert.AreEqual(1, p.Count);
Assert.AreEqual(1, p.NumberOfElements());
p.AddToCell(0, 1);
Assert.AreEqual(1, p.Count);
Assert.AreEqual(2, p.NumberOfElements());
}
/// <summary>
/// Parse a string like "[0,2|1,3]" to form the partition; cells are
/// separated by '|' characters and elements within the cell by commas.
/// </summary>
/// <param name="strForm">the partition in string form</param>
/// <returns>the partition corresponding to the string</returns>
/// <exception cref="ArgumentException">thrown if the provided strFrom is null or empty</exception>
public static Partition FromString(string strForm)
{
if (strForm == null || strForm.Length == 0)
{
throw new ArgumentException("null or empty string provided");
}
Partition p = new Partition();
int index = 0;
if (strForm[0] == '[')
{
index++;
}
int endIndex;
if (strForm[strForm.Length - 1] == ']')
{
endIndex = strForm.Length - 2;
}
else
{
endIndex = strForm.Length - 1;
}
int currentCell = -1;
int numStart = -1;
while (index <= endIndex)
{
char c = strForm[index];
if (char.IsDigit(c))
{
if (numStart == -1)
{
numStart = index;
}
}
else if (c == ',')
{
int element = int.Parse(strForm.Substring(numStart, index - numStart), NumberFormatInfo.InvariantInfo);
if (currentCell == -1)
{
p.AddCell(element);
currentCell = 0;
}
else
{
p.AddToCell(currentCell, element);
}
numStart = -1;
}
else if (c == '|')
{
int element = int.Parse(strForm.Substring(numStart, index - numStart), NumberFormatInfo.InvariantInfo);
if (currentCell == -1)
{
p.AddCell(element);
currentCell = 0;
}
else
{
p.AddToCell(currentCell, element);
}
currentCell++;
p.AddCell();
numStart = -1;
}
index++;
}
int lastElement = int.Parse(strForm.Substring(numStart, endIndex + 1 - numStart), NumberFormatInfo.InvariantInfo);
p.AddToCell(currentCell, lastElement);
return(p);
}