Hi all, thanks for the input. I've revised the patch to account for empty strings and for filenames that look like directories (i.e. that end in a slash). I've also begun the copyright assignment process, since adding the unit tests lengthened the patch past the critical line count. As for the naming of `set-extension`, the best I can think of as an alternative would be `with-extension` as a dual to `sans-extension`, although I think `set` still signals the intent well enough. I'll defer to others here. Cheers, Colin On Fri, 4 Jun 2021, at 06:23, Mattias EngdegÄrd wrote: > 4 juni 2021 kl. 15.08 skrev Philipp