- '(("^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)