/// <summary>
/// Move the reader to the next row. This must be called before
/// reading the first row.
/// </summary>
/// <returns>True if another row exists, False if the TSV is out of content</returns>
public virtual bool NextRow()
{
String8 row = _reader.NextRow();
if (row.IsEmpty())
{
return(false);
}
// Split the line into cells
_currentRowColumns = SplitCells(row, _cellPositionArray);
this.RowCountRead++;
// Allocate a set of reusable String8TabularValues to avoid per-cell-value allocation or boxing.
if (_valueBoxes == null || _valueBoxes.Length < _currentRowColumns.Count)
{
_valueBoxes = new String8TabularValue[_currentRowColumns.Count];
for (int i = 0; i < _valueBoxes.Length; ++i)
{
_valueBoxes[i] = new String8TabularValue();
}
}
return(true);
}
/// <summary>
/// Move the reader to the next row. This must be called before
/// reading the first row.
/// </summary>
/// <returns>True if another row exists, False if the TSV is out of content</returns>
public bool NextRow()
{
// If we're on the last row, ask for more (we don't read the last row in case it was only partially read into the buffer)
if (_nextRowIndexInBlock >= _currentBlock.Count - 1)
{
NextBlock();
}
// If there are no more rows, return false
if (_nextRowIndexInBlock >= _currentBlock.Count)
{
return(false);
}
// Get the next (complete) row from the current block
String8 currentLine = _currentBlock[_nextRowIndexInBlock];
// Strip leading UTF8 BOM, if found, on first row
if (_rowCountRead == 0)
{
if (currentLine.Length >= 3 && currentLine[0] == 0xEF && currentLine[1] == 0xBB && currentLine[2] == 0xBF)
{
currentLine = currentLine.Substring(3);
}
}
// Split the line into cells
_currentRow = SplitCells(currentLine, _cellPositionArray);
_rowCountRead++;
_nextRowIndexInBlock++;
// Allocate a set of reusable String8TabularValues to avoid per-cell-value allocation or boxing.
if (_valueBoxes == null || _valueBoxes.Length < _currentRow.Count)
{
_valueBoxes = new String8TabularValue[_currentRow.Count];
for (int i = 0; i < _valueBoxes.Length; ++i)
{
_valueBoxes[i] = new String8TabularValue();
}
}
return(true);
}
public LdfTabularReader(Stream stream)
{
_reader = new BufferedRowReader(stream, SplitRows);
_columnNamesBlock = new String8Block();
_columnIndices8 = new Dictionary <String8, int>();
_columnIndices = new Dictionary <string, int>(StringComparer.OrdinalIgnoreCase);
_columnNames = new List <string>();
_currentRowBlock = new String8Block();
_lineArray = new PartialArray <int>(1024, false);
ReadColumns(stream);
_currentRowValues = new String8TabularValue[_columnNames.Count];
for (int i = 0; i < _currentRowValues.Length; ++i)
{
_currentRowValues[i] = new String8TabularValue();
}
}
