vector< MyColumn > FitsDumper::InitColumnsRoot ( vector< string > &  list )

private

Definition at line 542 of file fitsdump.cc.

References MyColumn::col, DumpRoot(), MyColumn::first, fits::GetColumns(), id, MyColumn::last, MyColumn::name, MyColumn::ptr, fits::SetPtrAddress(), and str.

Referenced by DumpRoot().

{
    static const boost::regex expr("[^\\[]([[:word:].]+)(\\[([[:digit:]]+)\\])?");

    const fits::Table::Columns &cols = GetColumns();

    vector<MyColumn> vec;

    for (auto it=names.begin(); it!=names.end(); it++)
    {
        if (it->empty())
            continue;

        *it = ' '+*it;

        string::const_iterator ibeg = it->begin();
        string::const_iterator iend = it->end();

        boost::smatch what;
        while (boost::regex_search(ibeg, iend, what, expr, boost::match_extra))
        {
            const string all  = what[0];
            const string name = what[1];
            const size_t idx  = atol(string(what[3]).c_str());

            // Check if found colum is valid
            const auto ic = cols.find(name);
            if (ic==cols.end())
            {
                ibeg++;
                //cout << "Column '" << name << "' does not exist." << endl;
                //return vector<MyColumn>();
                continue;
            }
            if (idx>=ic->second.num)
            {
                cout << "Column '" << name << "' has no index " << idx << "." << endl;
                return vector<MyColumn>();
            }

            // find index if column already exists
            size_t p = 0;
            for (; p<vec.size(); p++)
                if (vec[p].name==name)
                    break;

            const string id = '['+to_string(p)+']';

            // Replace might reallocate the memory. Therefore, we cannot use what[0].first
            // directly but have to store the offset
            const size_t offset = what[0].first - it->begin();

            it->replace(ibeg-it->begin()+what.position(1), what.length()-1, id);

            ibeg = it->begin() + offset + id.size();
            iend = it->end();

            if (p<vec.size())
                continue;

            // Column not found, add new column
            MyColumn mycol;

            mycol.name  = name;
            mycol.col   = ic->second;
            mycol.first = idx;
            mycol.last  = idx;
            mycol.ptr   = SetPtrAddress(name);

            vec.push_back(mycol);
        }
    }

    ostringstream id;
    id << '[' << vec.size() << ']';

    for (auto it=names.begin(); it!=names.end(); it++)
    {
        while (1)
        {
            auto p = it->find_first_of('#');
            if (p==string::npos)
                break;

            it->replace(p, 1, id.str());
        }
    }

    //cout << endl;
    //for (size_t i=0; i<vec.size(); i++)
    //    cout << "val[" << i << "] = " << vec[i].name << '[' << vec[i].first << ']' << endl;
    //cout << endl;

    return vec;
}

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