public FieldParser()
{
m_UnfoldPattern = PatternFactory.GetInstance().Get(typeof (UnfoldPattern));
m_FieldPattern = PatternFactory.GetInstance().Get(typeof (FieldPattern));
m_HeaderNamePattern = PatternFactory.GetInstance().Get(typeof (FieldNamePattern));
m_HeaderBodyPattern = PatternFactory.GetInstance().Get(typeof (FieldBodyPattern));
m_DataReader = new DataReader();
}
public Result ParseFields(ref Stream dataStream, DataReader reader)
{
var result = reader.ReadData(ref dataStream);
var headers = new string(result.Data);
headers = m_UnfoldPattern.RegularExpression.Replace(headers, " ");
IList<RFC822.Field> fields = new List<RFC822.Field>();
Parse(ref fields, ref headers);
return new Result()
{
Data = fields,
FulfilledCritera = result.FulfilledCritera
};
}
private string ReadDiscreteBody(ref Stream dataStream, ref IEntity entity, ref string body)
{
StringBuilder sBuilder;
char[] cLine;
string currentLine, boundary;
bool bContinue = true;
int fulFilledCriteria;
var dataReader = new DataReader(m_EndOfMessageCriteria, new EndOfLineStrategy());
sBuilder = new StringBuilder();
do
{
var result = dataReader.ReadData(ref dataStream);
cLine = result.Data;
currentLine = new string(cLine);
boundary = m_delimiterFinder.FindDelimiter(ref entity, ref currentLine);
if (!string.IsNullOrEmpty(boundary))
{
break;
}
// Have we found the end of this message?
if (result.FulfilledCritera < 0)
{
boundary = string.Empty;
break;
}
sBuilder.Append(result.Data);
}
while (bContinue);
body = sBuilder.ToString();
sBuilder.Append(cLine);
m_Source.Append(sBuilder);
return boundary;
}
private string FindStartDelimiter(ref Stream dataStream, ref IEntity entity)
{
int fulFilledCriteria;
string line, delimiter;
var dataReader = new DataReader(m_EndOfMessageCriteria, new EndOfLineStrategy());
do
{
var result = dataReader.ReadData(ref dataStream);
fulFilledCriteria = result.FulfilledCritera;
line = new string(result.Data);
m_Source.Append(line);
if (result.FulfilledCritera == 0)
{
delimiter = string.Empty;
break;
}
delimiter = m_delimiterFinder.FindDelimiter(ref entity, ref line);
if (!string.IsNullOrEmpty(delimiter))
{
break;
}
}
while (fulFilledCriteria >= 0);
return delimiter;
}