(font-lock-default-function): If `font-lock-core-only' is non-nil,

don't use big font-lock machinery.

1 files changed, 8 insertions, 4 deletions

diff --git a/lisp/font-core.el b/lisp/font-core.el
index 08d2eb07d97..69e899f31e5 100644
--- a/lisp/font-core.el
+++ b/lisp/font-core.el
@@ -225,7 +225,8 @@ your own function which is called when `font-lock-mode' is toggled via
         (push (list 'face 'font-lock-face) char-property-alias-alist)))
     ;; Only do hard work if the mode has specified stuff in
     ;; `font-lock-defaults'.
-    (when font-lock-defaults
+    (when (and font-lock-defaults
+               (not font-lock-core-only))
       (add-hook 'after-change-functions 'font-lock-after-change-function t t)
       (font-lock-turn-on-thing-lock)
       ;; Fontify the buffer if we have to.
@@ -247,7 +248,8 @@ your own function which is called when `font-lock-mode' is toggled via
         (setcdr elt (remq 'font-lock-face (cdr elt)))
         (when (null (cdr elt))
           (setq char-property-alias-alist (delq elt char-property-alias-alist)))))
-    (when font-lock-defaults
+    (when (and font-lock-defaults
+               (not font-lock-core-only))
       (remove-hook 'after-change-functions 'font-lock-after-change-function t)
       (font-lock-unfontify-buffer)
       (font-lock-turn-off-thing-lock))))
@@ -269,11 +271,13 @@ Sets various variables using `font-lock-defaults' (or, if nil, using
     (make-local-variable 'font-lock-multiline)
     (let ((defaults (or font-lock-defaults
                         (assq major-mode font-lock-defaults-alist))))
+      ;; Variable alist?
+      (dolist (x (nthcdr 5 defaults))
+        (set (make-local-variable (car x)) (cdr x)))
       (when (and defaults
                  ;; Detect if this is a simple mode, which doesn't use
                  ;; any syntactic fontification functions.
-                 (not (cdr (assq 'font-lock-core-only
-                                 (nthcdr 5 defaults)))))
+                 (not font-lock-core-only))
         (require 'font-lock)
         (font-lock-set-defaults-1)))))