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- (defun uncompress-while-visiting ()
- "Temporary \"major mode\" used for .Z files, to uncompress the contents.
- It then selects a major mode from the uncompressed file name and contents."
- (if (and (not (null buffer-file-name))
- (string-match "\\.Z$" buffer-file-name))
- (set-visited-file-name
- (substring buffer-file-name 0 (match-beginning 0))))
- (message "Uncompressing...")
- (let ((buffer-read-only nil))
- (shell-command-on-region (point-min) (point-max) "uncompress" t))
- (message "Uncompressing...done")
- (set-buffer-modified-p nil)
- (normal-mode))
-
- (setq auto-mode-alist
- (cons '("\\.Z$" . uncompress-while-visiting) auto-mode-alist))
-
- (defun find-compressed-version ()
- "Hook to read and uncompress the compressed version of a file."
- ;; Just pretend we had visited the compressed file,
- ;; and uncompress-while-visiting will do the rest.
- (if (file-exists-p (concat buffer-file-name ".Z"))
- (progn
- (setq buffer-file-name (concat buffer-file-name ".Z"))
- (insert-file-contents buffer-file-name t)
- (goto-char (point-min))
- (setq error nil)
- t)))
-
- (setq find-file-not-found-hooks
- (cons 'find-compressed-version find-file-not-found-hooks))
-