Method SetAutoCompleteFunctionForFilename

gcore/gdalalgorithm.cpp:3845–3960

static */

/* static */
void GDALAlgorithm::SetAutoCompleteFunctionForFilename(
    GDALInConstructionAlgorithmArg &arg, GDALArgDatasetType type)
{
    arg.SetAutoCompleteFunction(
        [&arg,
         type](const std::string &currentValue) -> std::vector<std::string>
        {
            std::vector<std::string> oRet;

            if (arg.IsHidden())
                return oRet;

            {
                CPLErrorStateBackuper oBackuper(CPLQuietErrorHandler);
                VSIStatBufL sStat;
                if (!currentValue.empty() && currentValue.back() != '/' &&
                    VSIStatL(currentValue.c_str(), &sStat) == 0)
                {
                    return oRet;
                }
            }

            auto poDM = GetGDALDriverManager();
            std::set<std::string> oExtensions;
            if (type)
            {
                for (int i = 0; i < poDM->GetDriverCount(); ++i)
                {
                    auto poDriver = poDM->GetDriver(i);
                    if (((type & GDAL_OF_RASTER) != 0 &&
                         poDriver->GetMetadataItem(GDAL_DCAP_RASTER)) ||
                        ((type & GDAL_OF_VECTOR) != 0 &&
                         poDriver->GetMetadataItem(GDAL_DCAP_VECTOR)) ||
                        ((type & GDAL_OF_MULTIDIM_RASTER) != 0 &&
                         poDriver->GetMetadataItem(GDAL_DCAP_MULTIDIM_RASTER)))
                    {
                        const char *pszExtensions =
                            poDriver->GetMetadataItem(GDAL_DMD_EXTENSIONS);
                        if (pszExtensions)
                        {
                            const CPLStringList aosExts(
                                CSLTokenizeString2(pszExtensions, " ", 0));
                            for (const char *pszExt : cpl::Iterate(aosExts))
                                oExtensions.insert(CPLString(pszExt).tolower());
                        }
                    }
                }
            }

            std::string osDir;
            const CPLStringList aosVSIPrefixes(VSIGetFileSystemsPrefixes());
            std::string osPrefix;
            if (STARTS_WITH(currentValue.c_str(), "/vsi"))
            {
                for (const char *pszPrefix : cpl::Iterate(aosVSIPrefixes))
                {
                    if (STARTS_WITH(currentValue.c_str(), pszPrefix))
                    {