On Mon, Apr 13, 2015 at 1:06 PM, John Clements <cleme...@brinckerhoff.org> wrote: > > On Apr 13, 2015, at 2:29 AM, Jon Zeppieri <zeppi...@gmail.com> wrote: > >> >> It's supposed to have the same effect as emacs's >> `delete-trailing-whitespace`. >> I still need to add a preference setting to turn it on or off. (Maybe >> that should be based on the editor's mode?) > > I’d really like to use this tool. > > Here’s one problem that I see: there’s a hidden invariant in DrRacket (and > all editors) that when a buffer is unchanged, saving it won’t change the file > on disk. Actually, I think you can state this in a bunch of different ways. I > forsee hard-to-understand errors arising from a silent change-on-save (unless > I’m misreading your code?). Personally, I think I’d be more likely to use a > tool that requests permission to scrub trailing whitespace when saving a > file. I also think that this should probably be limited to racket and > scribble files, and I’m guessing that the easiest way to distinguish these > would be to use the filename extension. > > Please don’t let me stop you from doing this, though, this is something I’ve > wanted for quite a while! > > Many thanks, > > John
Good point. `delete-trailing-whitespace` is just a normal function in emacs, and if you want this to happen when saving a file, you use a before-save-hook. (This is a pretty common thing to do, though.) Exposing this as a method on text% is simple, I think. Then you could bind a keyboard shortcut to it or bring up a model on save (though personally I would find the latter pretty irritating). But, yes, different modes of use are important, I think. So I need to add a way of setting preferences for it. -Jon -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
