Method canExecute

radiantcore/commandsystem/CommandSystem.cpp:335–355

}

bool CommandSystem::canExecute(const std::string& input) const
{
    // Check the first command, ignoring arguments or subsequent commands.
    // For now we discount the possibility that the specific arguments could
    // change whether a command can be run, although in theory this could be possible.

    // Parsing the whole command string is rather expensive, so extract just the first token
    CommandTokeniser tokeniser(input);

    if (tokeniser.hasMoreTokens())
    {
        if (auto cmd = _commands.find(tokeniser.nextToken()); cmd != _commands.end())
        {
            return cmd->second->canExecute();
        }
    }

    // We only return false if we know that a command cannot run; if the command
    // was not found at all, return true by default.
    return true;
}

void CommandSystem::execute(const std::string& input)
{