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-rw-r--r--lisp/files.el3
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/files.el b/lisp/files.el
index 26f39169f8a..6e7e889b880 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -174,11 +174,12 @@ If the buffer is visiting a new file, the value is nil.")
(cond ((and (eq system-type 'ms-dos) (not (msdos-long-file-names)))
(concat "\\(^\\([A-z]:\\)?/?.*:\\)\\|" ; colon except after drive
"[+, ;=|<>\"?*]\\|\\[\\|\\]\\|" ; invalid characters
+ "[\000-\031]|" ; control characters
"\\(/\\.\\.?[^/]\\)\\|" ; leading dots
"\\(/[^/.]+\\.[^/.]*\\.\\)")) ; more than a single dot
((memq system-type '(ms-dos windows-nt))
(concat "\\(^\\([A-z]:\\)?/?.*:\\)\\|" ; colon except after drive
- "[|<>\"?*]")) ; invalid characters
+ "[|<>\"?*\000-\031]")) ; invalid characters
(t "[\000]"))
"Regexp recognizing file names which aren't allowed by the filesystem.")