vector< MyColumn > FitsDumper::InitColumns ( vector< string >  list )

private

Definition at line 203 of file fitsdump.cc.

References first, fits::GetColumns(), and fits::SetPtrAddress().

Referenced by Exec().

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

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

    if (names.empty())
        for (auto it=fColMap.begin(); it!=fColMap.end(); it++)
            if (it->second.num>0)
                names.push_back(it->first);

    vector<MyColumn> vec;

    for (auto it=names.begin(); it!=names.end(); it++)
    {
        boost::smatch what;
        if (!boost::regex_match(*it, what, expr, boost::match_extra))
        {
            cerr << "Couldn't parse expression '" << *it << "' " << endl;
            return vector<MyColumn>();
        }

        const string name = what[1];

        const auto iter = fColMap.find(name);
        if (iter==fColMap.end())
        {
            cerr << "ERROR - Column '" << name << "' not found in table." << endl;
            return vector<MyColumn>();
        }

        const fits::Table::Column &col = iter->second;

        const string val0  = what[3];
        const string delim = what[4];
        const string val1  = what[5];

        const uint32_t first = atol(val0.c_str());
        const uint32_t last  = (val0.empty() && delim.empty()) ? col.num-1 : (val1.empty() ? first : atoi(val1.c_str()));

        if (first>=col.num)
        {
            cerr << "ERROR - First index " << first << " for column " << name << " exceeds number of elements " << col.num << endl;
            return vector<MyColumn>();
        }

        if (last>=col.num)
        {
            cerr << "ERROR - Last index " << last << " for column " << name << " exceeds number of elements " << col.num << endl;
            return vector<MyColumn>();
        }

        if (first>last)
        {
            cerr << "ERROR - Last index " << last << " for column " << name << " exceeds first index " << first << endl;
            return vector<MyColumn>();
        }

        MyColumn mycol;

        mycol.name  = name;
        mycol.col   = col;
        mycol.first = first;
        mycol.last  = last;
        mycol.ptr   = SetPtrAddress(name);

        vec.push_back(mycol);
    }

    return vec;
}

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