/// <summary>
/// Reads a blank line. This accounts for empty lines
/// and commented out lines.
/// </summary>
protected virtual void ReadBlankLine()
{
if (context.ParserConfiguration.IgnoreBlankLines)
{
context.Row++;
}
while (true)
{
if (context.C == '\r' || context.C == '\n')
{
ReadLineEnding();
fieldReader.SetFieldStart();
return;
}
if (context.C == -1)
{
return;
}
// If the buffer runs, it appends the current data to the field.
// We don't want to capture any data on a blank line, so we
// need to set the field start every char.
fieldReader.SetFieldStart();
context.C = fieldReader.GetChar();
}
}
/// <summary>
/// Reads a line of the CSV file.
/// </summary>
/// <returns>The CSV line.</returns>
protected virtual string[] ReadLine()
{
context.RecordBuilder.Clear();
context.Row++;
context.RawRow++;
while (true)
{
if (fieldReader.IsBufferEmpty && !fieldReader.FillBuffer())
{
// End of file.
if (context.RecordBuilder.Length > 0)
{
// There was no line break at the end of the file.
// We need to return the last record first.
context.RecordBuilder.Add(fieldReader.GetField());
return(context.RecordBuilder.ToArray());
}
return(null);
}
context.C = fieldReader.GetChar();
if (context.RecordBuilder.Length == 0 && ((context.C == context.ParserConfiguration.Comment && context.ParserConfiguration.AllowComments) || context.C == '\r' || context.C == '\n'))
{
ReadBlankLine();
if (!context.ParserConfiguration.IgnoreBlankLines)
{
break;
}
continue;
}
// Trim start outside of quotes.
if (context.C == ' ' && (context.ParserConfiguration.TrimOptions & TrimOptions.Trim) == TrimOptions.Trim)
{
ReadSpaces();
fieldReader.SetFieldStart(-1);
}
if (context.C == context.ParserConfiguration.Quote && !context.ParserConfiguration.IgnoreQuotes)
{
if (ReadQuotedField())
{
break;
}
}
else
{
if (ReadField())
{
break;
}
}
}
return(context.RecordBuilder.ToArray());
}
