Method OpenOptionCompleteFunction

gcore/gdalalgorithm.cpp:4336–4430

@cond Doxygen_Suppress

//! @cond Doxygen_Suppress
std::vector<std::string>
GDALAlgorithm::OpenOptionCompleteFunction(const std::string &currentValue) const
{
    std::vector<std::string> oRet;

    int datasetType = GDAL_OF_RASTER | GDAL_OF_VECTOR | GDAL_OF_MULTIDIM_RASTER;
    auto inputArg = GetArg(GDAL_ARG_NAME_INPUT);
    if (inputArg && (inputArg->GetType() == GAAT_DATASET ||
                     inputArg->GetType() == GAAT_DATASET_LIST))
    {
        datasetType = inputArg->GetDatasetType();
    }

    auto inputFormat = GetArg(GDAL_ARG_NAME_INPUT_FORMAT);
    if (inputFormat && inputFormat->GetType() == GAAT_STRING_LIST &&
        inputFormat->IsExplicitlySet())
    {
        const auto &aosAllowedDrivers =
            inputFormat->Get<std::vector<std::string>>();
        if (aosAllowedDrivers.size() == 1)
        {
            auto poDriver = GetGDALDriverManager()->GetDriverByName(
                aosAllowedDrivers[0].c_str());
            if (poDriver)
            {
                AddOptionsSuggestions(
                    poDriver->GetMetadataItem(GDAL_DMD_OPENOPTIONLIST),
                    datasetType, currentValue, oRet);
            }
            return oRet;
        }
    }

    const auto AddSuggestions = [datasetType, &currentValue,
                                 &oRet](const GDALArgDatasetValue &datasetValue)
    {
        auto poDM = GetGDALDriverManager();

        const auto &osDSName = datasetValue.GetName();
        const std::string osExt = CPLGetExtensionSafe(osDSName.c_str());
        if (!osExt.empty())
        {
            std::set<std::string> oVisitedExtensions;
            for (int i = 0; i < poDM->GetDriverCount(); ++i)
            {
                auto poDriver = poDM->GetDriver(i);
                if (((datasetType & GDAL_OF_RASTER) != 0 &&
                     poDriver->GetMetadataItem(GDAL_DCAP_RASTER)) ||
                    ((datasetType & GDAL_OF_VECTOR) != 0 &&
                     poDriver->GetMetadataItem(GDAL_DCAP_VECTOR)) ||
                    ((datasetType & GDAL_OF_MULTIDIM_RASTER) != 0 &&
                     poDriver->GetMetadataItem(GDAL_DCAP_MULTIDIM_RASTER)))
                {
                    const char *pszExtensions =
                        poDriver->GetMetadataItem(GDAL_DMD_EXTENSIONS);
                    if (pszExtensions)
                    {
                        const CPLStringList aosExts(