Speed up CC Mode fontification with less accurate functions extending region

[gnu-emacs] / lisp / files-x.el

diff --git a/lisp/files-x.el b/lisp/files-x.el
index cf9fe914ed49a60fdda527a84c10cbcae6ccc58e..05ad7f57c5709de213b63dc78699b76582e7cd03 100644 (file)
--- a/lisp/files-x.el
+++ b/lisp/files-x.el
@@ -1,6 +1,6 @@
 ;;; files-x.el --- extended file handling commands
 
-;; Copyright (C) 2009-2015 Free Software Foundation, Inc.
+;; Copyright (C) 2009-2016 Free Software Foundation, Inc.
 
 ;; Author: Juri Linkov <juri@jurta.org>
 ;; Maintainer: emacs-devel@gnu.org
@@ -429,25 +429,24 @@ from the MODE alist ignoring the input argument VALUE."
   (catch 'exit
     (unless enable-local-variables
       (throw 'exit (message "Directory-local variables are disabled")))
-    (let ((variables-file (and (buffer-file-name)
-                               (not (file-remote-p (buffer-file-name)))
-                               (dir-locals-find-file (buffer-file-name))))
-         variables)
-      (setq variables-file
+    (let* ((dir-or-cache (and (buffer-file-name)
+                              (not (file-remote-p (buffer-file-name)))
+                              (dir-locals-find-file (buffer-file-name))))
+           (variables-file
             ;; If there are several .dir-locals, the user probably
             ;; wants to edit the last one (the highest priority).
-            (cond ((stringp variables-file)
-                   (car (last (dir-locals--all-files variables-file))))
-                  ((consp variables-file)      ; result from cache
-                   ;; If cache element has an mtime, assume it came from a file.
-                   ;; Otherwise, assume it was set directly.
-                   (if (nth 2 variables-file)
-                       (car (last (dir-locals--all-files (car variables-file))))
-                     (cadr variables-file)))
-                  ;; Try to make a proper file-name.  This doesn't cover all
-                  ;; wildcards, but it covers the default value of `dir-locals-file'.
-                  (t (replace-regexp-in-string
-                      "\\*" "" (replace-regexp-in-string  "\\?" "-" dir-locals-file)))))
+            (cond ((stringp dir-or-cache)
+                   (car (last (dir-locals--all-files dir-or-cache))))
+                  ((consp dir-or-cache)        ; result from cache
+                   ;; If cache element has an mtime, assume it came
+                   ;; from a file.  Otherwise, assume it was set
+                   ;; directly.
+                   (if (nth 2 dir-or-cache)
+                       (car (last (dir-locals--all-files (car dir-or-cache))))
+                     (cadr dir-or-cache)))
+                  ;; Try to make a proper file-name.
+                  (t (expand-file-name dir-locals-file))))
+           variables)
       ;; I can't be bothered to handle this case right now.
       ;; Dir locals were set directly from a class.  You need to
       ;; directly modify the class in dir-locals-class-alist.