;;; Emacs Lisp用にt/nilを入れ替えられるようにする
(require 'bool-flip)
(defun emacs-lisp-mode-hook--t-nil ()
  (make-local-variable 'bool-flip-alist)
  (push '("t" . "nil") bool-flip-alist))
(add-hook 'emacs-lisp-mode-hook 'emacs-lisp-mode-hook--t-nil)