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(after-revert-hook, before-revert-hook): Add defvars.

This commit is contained in:
Karl Heuer 1995-05-29 19:42:42 +00:00
parent eee20f6aa9
commit 5f76e7d492

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@ -1952,6 +1952,20 @@ which are the arguments that `revert-buffer' received.")
Gets two args, first the nominal file name to use,
and second, t if reading the auto-save file.")
(defvar before-revert-hook nil
"Normal hook for `revert-buffer' to run before reverting.
If `revert-buffer-function' is used to override the normal revert
mechanism, this hook is not used.")
(defvar after-revert-hook nil
"Normal hook for `revert-buffer' to run after reverting.
Note that the hook value that it runs is the value that was in effect
before reverting; that makes a difference if you have buffer-local
hook functions.
If `revert-buffer-function' is used to override the normal revert
mechanism, this hook is not used.")
(defun revert-buffer (&optional ignore-auto noconfirm)
"Replace the buffer text with the text of the visited file on disk.
This undoes all changes since the file was visited or saved.