Try and be more careful about propagation of lexical environment.

[gnu-emacs] / lisp / dnd.el

diff --git a/lisp/dnd.el b/lisp/dnd.el
index dbbab8252db9ca37e4c7b35beec8837802b92ecb..cbbef3844367d63b2d768f973b789592d89ef58b 100644 (file)
--- a/lisp/dnd.el
+++ b/lisp/dnd.el
@@ -1,17 +1,19 @@
-;;; dnd.el --- drag and drop support.
+;;; dnd.el --- drag and drop support.  -*- coding: utf-8 -*-
 
-;; Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
+;;   Free Software Foundation, Inc.
 
-;; Author: Jan Dj\e,Ad\e(Brv <jan.h.d@swipnet.se>
+;; Author: Jan Djärv <jan.h.d@swipnet.se>
 ;; Maintainer: FSF
 ;; Keywords: window, drag, drop
+;; Package: emacs
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -19,9 +21,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -37,10 +37,10 @@
 
 ;;;###autoload
 (defcustom dnd-protocol-alist
-  '(("^file:///"  . dnd-open-local-file)       ; XDND format.
-    ("^file://"   . dnd-open-file)             ; URL with host
-    ("^file:"     . dnd-open-local-file)       ; Old KDE, Motif, Sun
-    ("^\\(https?\\|ftp\\|file\\|nfs\\)://" . dnd-open-file)
+  `((,(purecopy "^file:///")  . dnd-open-local-file)   ; XDND format.
+    (,(purecopy "^file://")   . dnd-open-file)         ; URL with host
+    (,(purecopy "^file:")     . dnd-open-local-file)   ; Old KDE, Motif, Sun
+    (,(purecopy "^\\(https?\\|ftp\\|file\\|nfs\\)://") . dnd-open-file)
    )
 
   "The functions to call for different protocols when a drop is made.
@@ -155,10 +155,11 @@ Return nil if URI is not a local file."
       (let* ((decoded-f (decode-coding-string
                         f
                         (or file-name-coding-system
-                            default-file-name-coding-system)))
-            (try-f (if (file-readable-p decoded-f) decoded-f f)))
-       (when (file-readable-p try-f) try-f)))))
-
+                            default-file-name-coding-system))))
+       (setq f (cond ((file-readable-p decoded-f) decoded-f)
+                     ((file-readable-p f) f)
+                     (t nil)))))
+    f))
 
 (defun dnd-open-local-file (uri action)
   "Open a local file.