template<class T >

vector<T> Converter::Get

(

const std::string &

str

)

const

Converts the provided format string into a vector.

Template Parameters

T	Kind of data to be returned. This can either be boost::any objects or a bnary data-block (char).

Parameters

str	Data to be converted. For details see class reference

Returns

A vector of the given template type containing the arguments. In case of failure an empty vector is returned.

Exceptions

std::runtime_error

if the conversion was not successfull

Definition at line 525 of file Converter.cc.

References data, empty(), fFormat, fList, GetBinImp(), GetBinString(), GetBool(), GetString(), GetStringEol(), i, valid(), and wout.

{
    if (!valid())
        throw runtime_error("Compiled format invalid!");

    // If the format is empty we are already done
    if (empty() && str.empty())
    {
        wout << endl;
        return vector<T>();
    }

    int arg = 0;
    stringstream line(str);

    vector<T> data;

    for (Converter::FormatList::const_iterator i=fList.begin(); i<fList.end()-1; i++)
    {
        if (*i->first.first == typeid(string))
        {
            GetBinString(data, GetStringEol(line));
            line.clear(ios::eofbit);
            continue;
        }

        // Get as many items from the input line as requested
        for (int j=0; j<i->second.first; j++)
        {
            switch (i->first.first->name()[0])
            {
            case 'b': GetBinImp(data, GetBool(line)); break;
            case 's': GetBinImp(data, Get<short>    (line)); break;
            case 'i': GetBinImp(data, Get<int>      (line)); break;
            case 'l': GetBinImp(data, Get<long>     (line)); break;
            case 'f': GetBinImp(data, Get<float>    (line)); break;
            case 'd': GetBinImp(data, Get<double>   (line)); break;
            case 'x': GetBinImp(data, Get<long long>(line)); break;
            case 'c':
                {
                    const unsigned short val = Get<unsigned short>(line);
                    if (val>255)
                        line.setstate(ios::failbit);
                    GetBinImp(data, static_cast<unsigned char>(val));
                }
                break;
            case 'N':
                GetBinString(data, GetString(line));
                if (*i->first.first == typeid(O))
                    line.clear(ios::goodbit|(line.rdstate()&ios::eofbit));
                break;
            default:
                // This should never happen!
                throw runtime_error("Format '"+string(i->first.first->name())+" not supported!");
            }

            arg++;
        }

        if (!line)
            break;
    }
    wout << endl;

    // Something wrong with the conversion (e.g. 5.5 for an int)
    if (line.fail() && !line.eof())
    {
        line.clear(); // This is necesasary to get a proper response from tellg()

        ostringstream err;
        err << "Error converting argument at " << arg << " [fmt=" << fFormat << "]!\n";
        err << line.str() << "\n";
        err << setw(int(line.tellg())) << " " << "^\n";
        throw runtime_error(err.str());
    }

    // Not enough arguments, we have not reached the end
    if (line.fail() && line.eof())
    {
        line.clear();

        ostringstream err;
        err << "Not enough arguments [fmt=" << fFormat << "]!\n";
        err << line.str() << "\n";
        err << setw(int(line.tellg())+1) << " " << "^\n";
        throw runtime_error(err.str());
    }

    // Too many arguments, we have not reached the end
    // Unfortunately, this can also mean that there is something
    // wrong with the last argument
    if (line.good() && !line.eof())
    {
        ostringstream err;
        err << "More arguments available than expected [fmt=" << fFormat << "]!\n";
        err << line.str() << "\n";
        err << setw(int(line.tellg())+1) << " " << "^\n";
        throw runtime_error(err.str());
    }

    return data;

}

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