Method tryCompleteCommand

source/modes/ConsoleInterface.cpp:129–190

}

bool ConsoleInterface::tryCompleteCommand(const String_t& prefix, String_t& completedCmd)
{
    std::vector<const String_t*> matches;
    for(auto& element : mCommandMap)
    {
        if(boost::algorithm::starts_with(element.first, prefix))
        {
            matches.push_back(&element.first);
        }
    }

    if(matches.empty())
        return false;

    if(matches.size() == 1)
    {
        completedCmd = *(*matches.begin());
        return true;
    }

    // There are several matches. We display them
    for(auto match : matches)
    {
        const String_t& str = *match;
        print(str);
    }
    print("\n");

    // We try to complete until there is a difference between the matches in
    // a way like Linux does
    completedCmd = prefix;
    std::size_t index = completedCmd.length();
    // We take the first entry as reference
    const String_t& refStr = *(*matches.begin());
    while(index < refStr.length())
    {
        bool isDif = false;
        for(auto match : matches)
        {
            const String_t& str = *match;

            if(str.length() <= index)
            {
                isDif = true;
                break;
            }

            if(str[index] != refStr[index])
            {
                isDif = true;
                break;
            }
        }

        if(isDif)
            break;

        completedCmd += refStr[index];