take a second look then. ;-) you'll find `buildPath()` here too.
Not better:
string foo = "D:/code/txtDownloader"; writeln(foo); foo = foo.buildPath; foo ~= "config.txt"; writeln(foo); Running .\txtdownloader.exe D:/code/txtDownloaderD:/code/txtDownloaderconfig.txt <-- need: D:/code/txtDownloader/config.txt