+void UserInputHandler::expand(const QString &alias, const BufferInfo &bufferInfo, const QString &msg) {
+ QRegExp paramRangeR("\\$(\\d+)\\.\\.(\\d*)");
+ QStringList commands = alias.split(QRegExp("; ?"));
+ QStringList params = msg.split(' ');
+ for(int i = 0; i < commands.count(); i++) {
+ QString command = commands[i];
+
+ // replace ranges like $1..3
+ if(!params.isEmpty()) {
+ int pos;
+ while((pos = paramRangeR.indexIn(command)) != -1) {
+ int start = paramRangeR.cap(1).toInt();
+ bool ok;
+ int end = paramRangeR.cap(2).toInt(&ok);
+ if(!ok) {
+ end = params.count();
+ }
+ if(end < start)
+ command = command.replace(pos, paramRangeR.matchedLength(), QString());
+ else {
+ command = command.replace(pos, paramRangeR.matchedLength(), QStringList(params.mid(start - 1, end - start + 1)).join(" "));
+ }
+ }
+ }
+
+ for(int j = params.count(); j > 0; j--) {
+ IrcUser *ircUser = network()->ircUser(params[j - 1]);
+ command = command.replace(QString("$%1:hostname").arg(j), ircUser ? ircUser->host() : QString("*"));
+ command = command.replace(QString("$%1").arg(j), params[j - 1]);
+ }
+ command = command.replace("$0", msg);
+ command = command.replace("$channelname", bufferInfo.bufferName());
+ command = command.replace("$currentnick", network()->myNick());
+ handleUserInput(bufferInfo, command);
+ }
+}
+
+
+void UserInputHandler::putPrivmsg(const QByteArray &target, const QByteArray &message) {
+ static const char *cmd = "PRIVMSG";
+ int overrun = lastParamOverrun(cmd, QList<QByteArray>() << message);
+ if(overrun) {
+ static const char *splitter = " .,-";
+ int maxSplitPos = message.count() - overrun;
+ int splitPos = -1;
+ for(const char *splitChar = splitter; *splitChar != 0; splitChar++) {
+ splitPos = qMax(splitPos, message.lastIndexOf(*splitChar, maxSplitPos));
+ }
+ if(splitPos <= 0) {
+ splitPos = maxSplitPos;
+ }
+ putCmd(cmd, QList<QByteArray>() << target << message.left(splitPos));
+ putPrivmsg(target, message.mid(splitPos));
+ return;
+ } else {
+ putCmd(cmd, QList<QByteArray>() << target << message);
+ }
+}
+
+// returns 0 if the message will not be chopped by the irc server or number of chopped bytes if message is too long
+int UserInputHandler::lastParamOverrun(const QString &cmd, const QList<QByteArray> ¶ms) {
+ // the server will pass our message trunkated to 512 bytes including CRLF with the following format:
+ // ":prefix COMMAND param0 param1 :lastparam"
+ // where prefix = "nickname!user@host"
+ // that means that the last message can be as long as:
+ // 512 - nicklen - userlen - hostlen - commandlen - sum(param[0]..param[n-1])) - 2 (for CRLF) - 4 (":!@" + 1space between prefix and command) - max(paramcount - 1, 0) (space for simple params) - 2 (space and colon for last param)
+ IrcUser *me = network()->me();
+ int maxLen = 480 - cmd.toAscii().count(); // educated guess in case we don't know us (yet?)
+
+ if(me)
+ maxLen = 512 - serverEncode(me->nick()).count() - serverEncode(me->user()).count() - serverEncode(me->host()).count() - cmd.toAscii().count() - 6;
+
+ if(!params.isEmpty()) {
+ for(int i = 0; i < params.count() - 1; i++) {
+ maxLen -= (params[i].count() + 1);
+ }
+ maxLen -= 2; // " :" last param separator;
+
+ if(params.last().count() > maxLen) {
+ return params.last().count() - maxLen;
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+}