// function that takes a token (space character for instance// and a source string, then chops up the string into chunks based on the token// and then puts each individual chunk one by one into a vector// it returns the number of chunks foundvector<string> STLStrTok(string token, const string &SrcString){	vector<string> DestVector;	size_t PreviousPosition = 0;	// set the current position to wherever we find the first token at	// 0 says start at the beginning of the string	size_t CurrentPosition = SrcString.find(token, 0);	// if we've reached the end of the string, and no token was found	// add the entire string as one giant chunk	// and then return 1	if(CurrentPosition==string::npos)	{		DestVector.push_back(SrcString);		return DestVector;	}	// else, if the string isn't blank, push the substring into the vector	if(SrcString.substr(PreviousPosition, CurrentPosition-PreviousPosition)!="")		DestVector.push_back(SrcString.substr(PreviousPosition, CurrentPosition-PreviousPosition));	// keep doing it until we hit beyond the end of the source string	while(CurrentPosition!=string::npos)	{		PreviousPosition = CurrentPosition+token.length();		CurrentPosition = SrcString.find(token, PreviousPosition);		if(SrcString.substr(PreviousPosition, CurrentPosition-PreviousPosition)!="")			DestVector.push_back(SrcString.substr(PreviousPosition, CurrentPosition-PreviousPosition));	}	return DestVector;}class irc_message{public:	irc_message(void)	{		default_prefix = "";		prefix = "";		cmd = "";		params_vector.clear();	}	irc_message(string srcDefaultPrefix)	{		default_prefix = srcDefaultPrefix;		prefix = "";		cmd = "";		params_vector.clear();	}	bool SetMessage(string srcMessageString)	{		// is it completely blank? don't bother resetting the message, nothing has been changed yet		if(srcMessageString == "")			return false;		// convert all whitespace to space chars, there shouldn't be any 0xd or 0xa's at this point, mind ya...		for(string::size_type i = 0; i < srcMessageString.length(); i++)			if(isspace(srcMessageString))				srcMessageString = ' ';		// rip it up using the spaces as separators		vector<string> MessageParts = STLStrTok(" ", srcMessageString);		// was it all spaces? :) don't bother resetting the message, nothing has been changed yet		if(MessageParts.size() == 0)			return false;		vector<string>::size_type curr_pos = 0;		// if there's a prefix, store it		if(MessageParts[0][0] == ':')		{			// first, is that all there was?			if(MessageParts.size() == 1)				return false;			// remove the leading colon			prefix = MessageParts[0].substr(1, MessageParts[0].length() - 1);			// store cmd			cmd = MessageParts[1];			curr_pos = 2;		}		else		{			prefix = default_prefix;			cmd = MessageParts[0];			curr_pos = 1;		}		for(vector<string>::size_type i = curr_pos; i < MessageParts.size(); i++)			params_vector.push_back(MessageParts);		return true;	}	string GetPrefix(void)	{		return prefix;	}	string GetCommand(void)	{		return cmd;	}	vector<string> GetParamsAsVector(void)	{		return params_vector;	}	string GetParamsAsString(void)	{		string ret = "";		vector<string>::size_type ParamsSize = params_vector.size();		if(ParamsSize == 0)			return ret;		for(vector<string>::size_type i = 0; i < ParamsSize; i++)		{			ret += params_vector;			if(i != ParamsSize - 1)				ret += " ";		}		return ret;	}private:	string default_prefix;	string prefix;	string cmd;	vector<string> params_vector;};vector<irc_message> GetIRCMessages(string input_buffer){	// used to store strings that didn't have a terminator between calls to this function	static string hold_buffer = "";	// vector of irc_messages	vector<irc_message> IRCMessages;	// add anything in the hold_buffer to the beginning of the input_buffer	input_buffer = hold_buffer + input_buffer;	// find the last LF	string::size_type LF_POS = input_buffer.find_last_of('\n');	// if no LF was found	if(string::npos == LF_POS)	{		// put the current input_buffer into the hold buffer (see input_buffer = hold_buffer + input_buffer; above)		hold_buffer = input_buffer;		// return empty vector		return IRCMessages;	}	else if(LF_POS != input_buffer.length() - 1) // if the last LF found is not the last char in the input_buffer	{		// place the remainder of input_buffer in the hold buffer		hold_buffer = input_buffer.substr(LF_POS + 1, input_buffer.length() - LF_POS - 1);		// trim input_buffer by removing the remainder (keeping the last LF found in input_buffer)		input_buffer = input_buffer.substr(0, LF_POS + 1);	}	else	{		// input_buffer ended with LF (how convenient), so no need to put anything in the hold buffer		hold_buffer = "";	}	// vector of message strings	vector<string> MessageStrings;	// break up the input_buffer by CRLF	MessageStrings = STLStrTok("\r\n", input_buffer);	// now break up all the new strings by LF	// start fresh	vector<string> TempMessageStrings = MessageStrings;	MessageStrings.clear();	// for each string in TempMessages	for(vector<string>::const_iterator msg_iter = TempMessageStrings.begin(); msg_iter != TempMessageStrings.end(); msg_iter++)	{		// break up by LF		vector<string> tmp = STLStrTok("\n", *msg_iter);		// insert any strings found (there will be minimum 1 if no LF was found) into MessageStrings		MessageStrings.insert(MessageStrings.end(), tmp.begin(), tmp.end());	}	// convert message strings to irc_message objects	for(vector<string>::const_iterator msg_iter = MessageStrings.begin(); msg_iter != MessageStrings.end(); msg_iter++)	{		irc_message msg;		if(msg.SetMessage(*msg_iter))			IRCMessages.push_back(msg);		// else insert error into error message queue	}	// final final result	return IRCMessages;}...// entry into main loopchar *RXBuffer = new(nothrow) char[8193];if(RXBuffer == 0){	cout << "  " << "Fatal memory allocation error when creating network receive buffer." << endl;	return -1;}else{	// do initial zero'ing out of receive buffer	memset(RXBuffer, '\0', sizeof(char) * 8193);}// recv / response loopwhile(!APP_TERMINATE){	int bytes_received = TCPClient.Receive(RXBuffer, 8192);	if(bytes_received < 0)	{		cout << "  " << TCPClient.LastNetworkError() << endl;		return -1;	}	else	{		if(bytes_received == 0)		{			Sleep(1);		}		else		{			// 0 terminate the buffer so we can turn it into a string			RXBuffer[bytes_received] = '\0';			// get messages			vector<irc_message> IRCMessages = GetIRCMessages(string(RXBuffer));			if(IRCMessages.size() > 0)			{				cout << endl << (long unsigned int)IRCMessages.size() << " msgs" << endl;				for(vector<irc_message>::iterator msg_iter = IRCMessages.begin(); msg_iter != IRCMessages.end(); msg_iter++)				{					cout << "MESSAGE" << endl;					cout << "FROM  : " << msg_iter->GetPrefix() << endl;					cout << "CMD   : " << msg_iter->GetCommand() << endl;					cout << "PARAMS: " << msg_iter->GetParamsAsString() << endl;					cout << endl;				}			}			// process irc_messages here		}	}}if(RXBuffer != 0)delete [] RXBuffer;