I've been trying repeatly and rewritting it over billions of times it seems.

But when I'm connecting to a irc server with my QTcpSocket. Some lines are malformed. where it is split to a new line.

So I thought I could just do it to where check if the line starts without a ':' append it to the previous line. But apparently that causes some lines to be mixed together and what not. And I can't find hardly any resources on doing it correctly.

Qt Code: 
  1. void
  2. IrcSocket::readSocket() {
  3.     if(!m_ircSocket->canReadLine()) {
  4.         return;
  5.     }
  6.  
  7.     QTextStream stream(m_ircSocket);
  8.     QString data;
  9.  
  10.     do {
  11.         data = stream.readLine();
  12.  
  13.         if(data[0] != ':') {
  14.             QStringList words = data.split(" ");
  15.  
  16.             if(words.count() >= 2) {
  17.                 if(words[0] == "NOTICE" && words[1] == "AUTH") {
  18.                     QRegExp reg("^NOTICE AUTH :(.+)$");
  19.  
  20.                     if(reg.exactMatch(data)) {
  21.                         emit noticeAuth(reg.cap(1));
  22.                     }
  23.                 } else {
  24.                     data.append(stream.readLine());
  25.                 }
  26.             } else {
  27.                 data.append(stream.readLine());
  28.             }
  29.         } else {
  30.             QStringList words = data.split(" ");
  31.  
  32.             switch(words[1].toUInt()) {
  33.                 case 001: {
  34.                     QRegExp reg("^[^ ]+ 001 [^ ]+ :(.+)$", Qt::CaseInsensitive);
  35.  
  36.                     if(reg.exactMatch(data)) {
  37.                         emit welcome(reg.cap(1));
  38.                     } else {
  39.                         data.append(stream.readLine());
  40.                     }
  41.                 }
  42.                 case ReplyCode::RPL_MOTDSTART: {
  43.                     QRegExp reg("^[^ ]+ 375 [^ ]+ :(.+)$", Qt::CaseInsensitive);
  44.  
  45.                     if(reg.exactMatch(data)) {
  46.                         emit motdStart(reg.cap(1));
  47.                     } else {
  48.                         data.append(stream.readLine());
  49.                     }
  50.                     break;
  51.                 }
  52.                 case ReplyCode::RPL_MOTD: {
  53.                     QRegExp reg("^[^ ]+ 327 [^ ]+ :(.+)$", Qt::CaseInsensitive);
  54.                     kDebug() << data;
  55.                     if(reg.exactMatch(data)) {
  56.                         kDebug() << "TEST: " << reg.cap(1);
  57.                         data.clear();
  58.                     } else {
  59.                         data.append(stream.readLine());
  60.                     }
  61.                     break;
  62.                 }
  63.                 default: {
  64.                     data.append(stream.readLine());
  65.                     break;
  66.                 }
  67.             }
  68.         }
  69.  
  70.         kDebug() << data;
  71.     } while(!stream.atEnd());
  72. }
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