CompletionResult CompleteArgument(const Args& args, int argNum) {
CommandMap& commands = GetCommandMap();
commandLog.Debug("Completing argument %i of '%s'", argNum, args.ConcatArgs(0));
if (args.Argc() == 0) {
return {};
}
if (argNum > 0) {
const std::string& cmdName = args.Argv(0);
auto it = commands.find(cmdName);
if (it == commands.end()) {
return {};
}
std::string prefix;
if (argNum < args.Argc()) {
prefix = args.Argv(argNum);
}
return it->second.cmd->Complete(argNum, args, prefix);
} else {
return CompleteCommandNames(args.Argv(0));
}
}
void CmdBase::PrintUsage(const Args& args, Str::StringRef syntax, Str::StringRef description) const {
if(description.empty()) {
Print("%s: %s %s", _("usage"), args.Argv(0).c_str(), syntax.c_str());
} else {
Print("%s: %s %s — %s", _("usage"), args.Argv(0).c_str(), syntax.c_str(), description.c_str());
}
}