diff options
| -rw-r--r-- | lisp/files.el | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/lisp/files.el b/lisp/files.el index adec33ef77b..719cda70739 100644 --- a/lisp/files.el +++ b/lisp/files.el @@ -2285,14 +2285,12 @@ only set the major mode, if that would change it." If optional arg KEEP-MODE-IF-SAME is non-nil, MODE is chased of any aliases and compared to current major mode. If they are the same, do nothing and return nil." - (when keep-mode-if-same - (while (symbolp (symbol-function mode)) - (setq mode (symbol-function mode))) - (if (eq mode major-mode) - (setq mode nil))) - (when mode - (funcall mode) - mode)) + (unless (and keep-mode-if-same + (eq (indirect-function mode) + (indirect-function major-mode))) + (when mode + (funcall mode) + mode))) (defun set-auto-mode-1 () "Find the -*- spec in the buffer. @@ -2811,9 +2809,15 @@ It is dangerous if either of these conditions are met: ok))))))) (defun hack-one-local-variable (var val) - "Set local variable VAR with value VAL." + "Set local variable VAR with value VAL. +If VAR is `mode', call `VAL-mode' as a function unless it's +already the major mode." (cond ((eq var 'mode) - (funcall (intern (concat (downcase (symbol-name val)) "-mode")))) + (let ((mode (intern (concat (downcase (symbol-name val)) + "-mode")))) + (unless (eq (indirect-function mode) + (indirect-function major-mode)) + (funcall mode)))) ((eq var 'eval) (save-excursion (eval val))) (t |