public override int Read()
{
int ret = base.Read();
_prevLineStart = _atLineStart;
if (ret == -1)
{
_atLineStart = true;
return(ret);
}
_atLineStart = false;
++_position;
if (ret == '\r')
{
if (Peek() == '\n')
{
ret = BaseReader.Read();
}
else
{
NoteLineAdvance();
}
}
if (ret == '\n')
{
NoteLineAdvance();
}
return(ret);
}
/// <internalonly />
/// <devdoc>
/// <para> return true if one of the queries matches with the XmlReader context. </para>
/// </devdoc>
public bool ReadUntilMatch()
{
while (true)
{
if (ProcessAttribute > 0)
{
//need to process the attribute one at time
if (MoveToNextAttribute())
{
if (_XPathCollection.MatchAnyQuery())
{
return(true);
}
}
else
{
ProcessAttribute = -1; //stop attributes processing.
}
}
else if (!BaseReader.Read())
{
return(false);
}
else
{
_XPathCollection.AdvanceUntil(this);
if (_XPathCollection.MatchAnyQuery())
{
return(true);
}
}
}
}
} // proc SetColumn
private bool ReadBuffer()
{
charOffset = 0;
charBufferLength = BaseReader.Read(charBuffer, charOffset, charBuffer.Length);
return(charBufferLength > 0);
} // func ReadBuffer
/// <devdoc>
/// <para>
/// Reads the next
/// node from the stream.
/// </para>
/// </devdoc>
public override bool Read()
{
ReadMethod = ReadMethods.Read;
var ret = BaseReader.Read();
if (ret)
{
_XPathCollection.Advance(this);
}
return(ret);
}
public override int Read()
{
int ret = base.Read();
_prevLineStart = _atLineStart;
if (ret == -1)
{
_atLineStart = true;
return(ret);
}
++_index;
_atLineStart = false;
++_columnNumber;
if (ret == '\r')
{
if (Peek() == '\n')
{
ret = BaseReader.Read();
++_index;
}
else
{
NoteLineAdvance();
}
}
if (ret == '\n')
{
NoteLineAdvance();
}
if (_sb != null && ret != -1)
{
_sb.Append((char)ret);
}
return(ret);
}
public int Read()
{
if (Buffer.Count > 0)
{
var pop = Buffer.Last();
Buffer.RemoveAt(Buffer.Count - 1);
LineColumn += 1;
return pop;
}
var c = BaseReader.Read();
if (c == '\n')
{
LineNumber += 1;
LineColumn = 1;
}
else
{
LineColumn += 1;
}
return c;
}
/// <inheritdoc/> public override bool Read() => BaseReader.Read();
/// <inheritdoc/>
public override bool Read()
{
return(BaseReader.Read());
}
public async Task <CsvRow> ReadRowAsync()
{
var endOfStream = false;
var rowValues = new List <string>();
if (BaseReader != null)
{
var inQuote = false;
var value = new StringBuilder();
var hasCell = false;
ColumnNumber = 0;
while (true)
{
var c = await ReadCharAsync().ConfigureAwait(false);
if (!c.HasValue)
{
endOfStream = true;
if (hasCell)
{
rowValues.Add(value.ToString());
}
RowNumber++;
break;
}
ColumnNumber++;
var next = BaseReader.Peek();
if (inQuote)
{
if (c == '\n')
{
LineNumber++;
}
else if (c == '\r')
{
if (next == '\n')
{
hasCell = true;
value.Append(c.Value);
c = await ReadCharAsync().ConfigureAwait(false);
ColumnNumber++;
}
LineNumber++;
}
if (Quote.HasValue && c == Quote)
{
if (next == Quote)
{
await ReadCharAsync().ConfigureAwait(false);
hasCell = true;
value.Append(Quote.Value);
}
else
{
inQuote = false;
}
}
else
{
hasCell = true;
value.Append(c.Value);
}
}
else if (c == '\n')
{
if (hasCell)
{
rowValues.Add(value.ToString());
}
LineNumber++;
break;
}
else if (c == '\r')
{
if (next == '\n')
{
BaseReader.Read();
ColumnNumber++;
}
if (hasCell)
{
rowValues.Add(value.ToString());
}
LineNumber++;
break;
}
else if (Quote.HasValue && c == Quote)
{
if (value.Length == 0)
{
inQuote = true;
}
else
{
hasCell = true;
value.Append(c.Value);
}
}
else if (c == Separator)
{
rowValues.Add(value.ToString());
value.Clear();
hasCell = false;
}
else
{
hasCell = true;
value.Append(c.Value);
}
}
}
if (rowValues.Count == 0 && endOfStream)
{
return(null);
}
if (HasHeaderRow && _columns == null)
{
_columns = rowValues.Select(CreateColumn).ToArray();
return(await ReadRowAsync().ConfigureAwait(false)); // Read the first row with data
}
return(CreateRow(_columns, rowValues));
}