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;; util.el -- utility functions
;; http://whattheemacsd.com/
;; whitespace cleanup
(defun cleanup-buffer ()
(interactive)
(untabify (point-min) (point-max))
(delete-trailing-whitespace)
(set-buffer-file-coding-system 'utf-8))
(add-hook 'before-save-hook 'cleanup-buffer)
(defun rename-current-buffer-file ()
"Renames current buffer and file it is visiting."
(interactive)
(let ((name (buffer-name))
(filename (buffer-file-name)))
(if (not (and filename (file-exists-p filename)))
(error "Buffer '%s' is not visiting a file!" name)
(let ((new-name (read-file-name "New name: " filename)))
(if (get-buffer new-name)
(error "A buffer named '%s' already exists!" new-name)
(rename-file filename new-name 1)
(rename-buffer new-name)
(set-visited-file-name new-name)
(set-buffer-modified-p nil)
(message "File '%s' successfully renamed to '%s'"
name (file-name-nondirectory new-name)))))))
(global-set-key (kbd "C-x C-r") 'rename-current-buffer-file)
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