Re: [MIT-Scheme-devel] [PATCH] Implement DIRED-UP-DIRECTORY

[Rich Loveland]

   Date: Fri, 24 Apr 2015 17:13:54 +0000
   From: Taylor R Campbell <address@hidden>

      Date: Thu, 23 Apr 2015 22:36:32 -0400
      From: Rich Loveland <address@hidden>

      In the attached patch, I've implemented the DIRED-UP-DIRECTORY command
      for Edwin, and bound it to #\^ as found in that other Emacs.

      Please let me know if there's a better way of specifying "the next
      directory up" than just merging the current directory with "..".  I
      read through the manual section on pathnames and the runtime pathname
      code but I might have missed it.

   Probably something like:

   (merge-pathnames (make-pathname #f #f '(RELATIVE UP) #f #f #f)
                    (directory-pathname (dired-current-pathname)))

OK.  New patch is attached using your code above.  Tested it on Linux,
OS X, and Windows; works as expected.

dired-up-directory.patch
Description: Text document