protected byte[] FetchHexadecimalEncodedString()
{
CaptureItem();
byte[] result = CurrentItemText.DecodeHexadecimalEncodedString(false);
if (null != result)
{
return(result);
}
ParsingError("Expected an hexadecimal string. Found {0}.", CurrentItemText);
// Not reachable.
return(null);
}
protected IPEndPoint FetchIPEndPoint()
{
bool errorEncountered = false;
CaptureItem();
try {
int splitAt;
if (CurrentItemText.StartsWith("["))
{
int closingBracketIndex = CurrentItemText.IndexOf(']');
if (2 > closingBracketIndex)
{
errorEncountered = true;
return(null);
}
splitAt = CurrentItemText.IndexOf(':', closingBracketIndex);
}
else
{
splitAt = CurrentItemText.IndexOf(':');
}
IPAddress ipAddress;
ushort port;
if ((-1 != splitAt) &&
(0 != splitAt) &&
(CurrentItemText.Length > (splitAt + 1)) &&
IPAddress.TryParse(CurrentItemText.Substring(0, splitAt), out ipAddress) &&
ushort.TryParse(CurrentItemText.Substring(splitAt + 1), out port))
{
return(new IPEndPoint(ipAddress, port));
}
errorEncountered = true;
return(null);
}
finally {
if (errorEncountered)
{
ParsingError("Expecting an IP endpoint. Found '{0}'", CurrentItemText);
}
}
}
protected TorVersion[] FetchVersionsListItem()
{
CaptureItem();
List <TorVersion> result = new List <TorVersion>();
string[] items = CurrentItemText.Split(',');
foreach (string item in items)
{
string versionString;
string qualifier;
if (!SplitPair(item, '-', out versionString, out qualifier, true))
{
ParsingError("Invalid version number {0}.", item);
}
Version parsedVersion;
if (!Version.TryParse(versionString, out parsedVersion))
{
ParsingError("Ill-formed version number '{0}'.", item);
}
result.Add(new TorVersion(parsedVersion, qualifier));
}
return(result.ToArray());
}
