void CompressedFitsFile::HeaderEntry::buildFitsString ( )

inlineprivate

Construct the FITS header string from the key, value and comment

Definition at line 134 of file fitsDecompressor.cc.

References i, and str.

            {
                ostringstream str;
                unsigned int totSize = 0;

                // Tuncate the key if required
                if (_key.length() > 8)
                {
                    str << _key.substr(0, 8);
                    totSize += 8;
                }
                else
                {
                    str << _key;
                    totSize += _key.length();
                }

                // Append space if key is less than 8 chars long
                for (int i=totSize; i<8;i++)
                {
                    str << " ";
                    totSize++;
                }

                // Add separator
                str << "= ";
                totSize += 2;

                // Format value
                if (_value.length() < 20)
                    for (;totSize<30-_value.length();totSize++)
                        str << " ";

                if (_value.length() > 70)
                {
                    str << _value.substr(0,70);
                    totSize += 70;
                }
                else
                {
                    str << _value;
                    totSize += _value.size();
                }

                // If there is space remaining, add comment area
                if (totSize < 77)
                {
                    str << " / ";
                    totSize += 3;
                    if (totSize < 80)
                    {
                        unsigned int commentSize = 80 - totSize;
                        if (_comment.length() > commentSize)
                        {
                            str << _comment.substr(0,commentSize);
                            totSize += commentSize;
                        }
                        else
                        {
                            str << _comment;
                            totSize += _comment.length();
                        }
                    }
                }

                // If there is yet some free space, fill up the entry with spaces
                for (int i=totSize; i<80;i++)
                    str << " ";

                _fitsString = str.str();

                // Check for correct completion
                if (_fitsString.length() != 80)
                    cout << "Error |" << _fitsString << "| is not of length 80" << endl;
            }