[CMake] More Emacs goodness (buffer names)

[James Bigler]

While there is some interest in cmake-mode.el I have another useful thing to
share.

I've been long irritated with having to deal with multiple buffers all name
CMakeLists.txt.  Emacs by default will call them CMakeLists.txt,
CMakeLists.txt<2>, CMakeLists.txt<3>, etc..  This is really hard to switch
back and forth when the buffer names are difficult to associate with
location.

I've found a couple of solutions to this problem.

1. Use uniquify emacs package.  This gives several options to automatically
rename buffers based on their location on disk.

;; uniquify.el is a helper routine to help give buffer names a better unique
name.
(when (load "uniquify" 'NOERROR)
  (require 'uniquify)
  (setq uniquify-buffer-name-style 'forward)
  ;(setq uniquify-buffer-name-style 'post-forward)
  )

2. Rename the buffer as part of the cmake-mode

(defun cmake-rename-buffer ()
  "Renames a CMakeLists.txt buffer to cmake-<directory name>."
  (interactive)
  ;(print (concat "buffer-filename = " (buffer-file-name)))
  ;(print (concat "buffer-name     = " (buffer-name)))
  (when (and (buffer-file-name) (string-match "CMakeLists.txt"
(buffer-name)))
      ;(setq file-name (file-name-nondirectory (buffer-file-name)))
      (setq parent-dir (file-name-nondirectory (directory-file-name
(file-name-directory (buffer-file-name)))))
      ;(print (concat "parent-dir = " parent-dir))
      (setq new-buffer-name (concat "cmake-" parent-dir))
      ;(print (concat "new-buffer-name= " new-buffer-name))
      (rename-buffer new-buffer-name t)
      )
  )

(add-hook 'cmake-mode-hook (function cmake-rename-buffer))

I actually prefer renaming my buffers with my cmake-rename-buffer function,
because the buffer names start with a lower case letter. ;)

I added this to the wiki:
http://www.vtk.org/Wiki/CMake_Editors_Support#CMake_Editor_Modes

James
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