public TabulateData GetSubColumns(IEnumerable <int> columnIndices)
{
if (columnIndices == null)
{
throw new ArgumentNullException();
}
if (columnIndices.Count() == 0)
{
// we can't return a sub tabulate result with no column.
return(null);
}
if (columnIndices.Any(i => i < 0 || i >= _columns.Length))
{
throw new ArgumentException("column index is out of range");
}
var columns = columnIndices.Select(i => _columns[i]);
TabulateData subResult = new TabulateData(columns);
foreach (var row in _rows)
{
var subRow = columnIndices.Select(i => row[i]);
subResult.AddRow(subRow);
}
return(subResult);
}
public static bool TryParse(string s, out TabulateData result)
{
if (string.IsNullOrEmpty(s))
{
throw new ArgumentNullException();
}
// split rows firstly.
string[] rows = s.Split('\n');
// row[0] is the header
string[] columns = rows[0].Split('\t');
result = new TabulateData(columns);
for (int i = 1; i < rows.Length; ++i)
{
string[] values = rows[i].Split('\t');
if (!result.AddRow(values))
{
return(false);
}
}
return(true);
}
public TabulateData GetSubColumns(IEnumerable <string> columns)
{
if (columns == null)
{
throw new ArgumentNullException();
}
if (columns.Count() == 0)
{
// we can't return a sub tabulate result with no column.
return(null);
}
var columnIndices = columns.Select(c => GetColumnIndex(c));
TabulateData subResult = new TabulateData(columns);
foreach (var row in _rows)
{
var subRow = columnIndices.Select(i => i < 0 ? string.Empty : row[i]);
subResult.AddRow(subRow);
}
return(subResult);
}
public TabulateData GetSubRows(IEnumerable <int> rowIndices)
{
if (rowIndices == null)
{
throw new ArgumentNullException();
}
var validRowIndices = rowIndices.Where(i => i >= 0 && i < RowCount);
// even if there is no valid row index, we still need to return a sub tabulate result
// with no row.
TabulateData subResult = new TabulateData(_columns);
foreach (var index in validRowIndices)
{
subResult.AddRow(_rows[index]);
}
return(subResult);
}