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-rw-r--r--lisp/emacs-lisp/derived.el6
1 files changed, 5 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/derived.el b/lisp/emacs-lisp/derived.el
index 8d152f391bc..4aa85290801 100644
--- a/lisp/emacs-lisp/derived.el
+++ b/lisp/emacs-lisp/derived.el
@@ -155,7 +155,10 @@ the parent, and then sets the variable `case-fold-search' to nil:
(setq case-fold-search nil))
Note that if the documentation string had been left out, it would have
-been generated automatically, with a reference to the keymap."
+been generated automatically, with a reference to the keymap.
+
+The new mode runs the hook constructed by the function
+`derived-mode-hook-name'."
(declare (debug (&define name symbolp sexp [&optional stringp]
[&rest keywordp sexp] def-body)))
@@ -187,6 +190,7 @@ been generated automatically, with a reference to the keymap."
parent child docstring syntax abbrev))
`(progn
+ (defvar ,hook nil ,(format "Hook run when entering %s mode." name))
(defvar ,map (make-sparse-keymap))
,(if declare-syntax
`(defvar ,syntax (make-syntax-table)))