public static CsvDocument CreateFrom(TextReader reader, CsvParsingOptions options = null)
{
if (null == reader)
{
throw new ArgumentNullException(nameof(reader));
}
var document = new CsvDocument();
using (var tokenizer = new CsvTokenizer(reader))
{
try
{
var parser = new CsvParser(tokenizer);
parser.Parse(document, options ?? DefaultOptions.Value);
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}
return(document);
}
public void Parse(CsvDocument document, CsvParsingOptions options)
{
try
{
ParseInternal(document, options);
}
catch (Exception exception)
{
throw new CsvParsingException(exception.Message, exception);
}
}
internal void ParseInternal(CsvDocument document, CsvParsingOptions options)
{
var hasHeader = false;
var addRow = new Action <ICollection <string> >(fields =>
{
var row = document.CreateRow();
fields.ForEach(text => row.Fields.Add(document.CreateField(row, text)));
document.Rows.Add(row);
});
var state = ParserState.Begin;
while (ParserState.Done != state)
{
switch (state)
{
case ParserState.Begin:
{
state = ParseLine(fields =>
{
if (options.HasHeader && false == hasHeader)
{
hasHeader = true;
fields.ForEach(field => document.Names.Add(field));
return;
}
addRow.Invoke(fields);
});
break;
}
case ParserState.NewLine:
{
state = ParseLine(addRow);
break;
}
default:
{
throw new CsvParsingException();
}
}
}
}