+void AliasManager::expand(const QString& alias, const BufferInfo& bufferInfo, const QString& msg, CommandList& list)
+{
+ const Network* net = network(bufferInfo.networkId());
+ if (!net) {
+ // FIXME send error as soon as we have a method for that!
+ return;
+ }
+
+ QRegExp paramRangeR(R"(\$(\d+)\.\.(\d*))");
+ QStringList commands = alias.split(QRegExp("; ?"));
+ QStringList params = msg.split(' ');
+ QStringList expandedCommands;
+ for (int i = 0; i < commands.count(); i++) {
+ QString command = commands[i];
+
+ // replace ranges like $1..3
+ if (!params.isEmpty()) {
+ int pos;
+ while ((pos = paramRangeR.indexIn(command)) != -1) {
+ int start = paramRangeR.cap(1).toInt();
+ bool ok;
+ int end = paramRangeR.cap(2).toInt(&ok);
+ if (!ok) {
+ end = params.count();
+ }
+ if (end < start)
+ command = command.replace(pos, paramRangeR.matchedLength(), QString());
+ else {
+ command = command.replace(pos, paramRangeR.matchedLength(), QStringList(params.mid(start - 1, end - start + 1)).join(" "));
+ }
+ }
+ }
+
+ for (int j = params.count(); j > 0; j--) {
+ // Find the referenced IRC user...
+ IrcUser* ircUser = net->ircUser(params[j - 1]);
+ // ...and replace components, using short-circuit evaluation as ircUser might be null
+
+ // Account, or "*" if blank/nonexistent/logged out
+ command = command.replace(QString("$%1:account").arg(j),
+ (ircUser && !ircUser->account().isEmpty()) ? ircUser->account() : QString("*"));
+
+ // Hostname, or "*" if blank/nonexistent
+ command = command.replace(QString("$%1:hostname").arg(j),
+ (ircUser && !ircUser->host().isEmpty()) ? ircUser->host() : QString("*"));
+
+ // Identd
+ // Ident if verified, or "*" if blank/unknown/unverified (prefixed with "~")
+ //
+ // Most IRC daemons have the option to prefix an ident with "~" if it could not be
+ // verified via an identity daemon such as oidentd. In these cases, it can be handy to
+ // have a way to ban via ident if verified, or all idents if not verified. If the
+ // server does not verify idents, it usually won't add "~".
+ //
+ // Identd must be replaced before ident to avoid being treated as "$i:ident" + "d"
+ command = command.replace(QString("$%1:identd").arg(j),
+ (ircUser && !ircUser->user().isEmpty() && !ircUser->user().startsWith("~")) ? ircUser->user()
+ : QString("*"));