IRow GetRowCore(IRowLocation rowLocation, IColumn currentCol)
{
return(currentCol.Content.Extract(f, g));
IRow f(IEnumerable <IRow> rows)
{
var rowIndex = rowLocation.RowNesting.First();
var rowArray = rows.Select(r => new Row(r)).ToArray();
var rowCount = rowArray.Count();
if (rowIndex >= rowCount)
{
throw new ArgumentException($"Row index out of range.");
}
if (rowLocation.ColumnNesting.Count() != 0)
{
var colIndex = rowLocation.ColumnNesting.First();
var colArray = rowArray[rowIndex].Columns.ToArray();
var colCount = colArray.Count();
if (colIndex >= colCount)
{
throw new ArgumentException($"Column index out of range.");
}
int currNestingSize = rowLocation.RowNesting.Count();
return(GetRowCore(new RowLocation(
rowLocation.RowNesting.TakeLast(currNestingSize - 1).ToArray(),
rowLocation.ColumnNesting.TakeLast(currNestingSize - 1).ToArray()),
colArray[colIndex]));
}
else
{
return(rowArray[rowIndex]);
}
}
IRow g(object obj)
{
throw new ArgumentException("Column location points to an endpoint but it shouldn't if you want to get rows.");
}
}
public IRow GetRow(IRowLocation rowLocation) => GetRowCore(rowLocation, this);