1 files changed, 13 insertions, 0 deletions

diff --git a/lisp/double.el b/lisp/double.el
index 4de4b8a1dd8..cd27f31fbb8 100644
--- a/lisp/double.el
+++ b/lisp/double.el
@@ -52,6 +52,10 @@
 
 ;;; ChangeLog: 
 
+;; * 1994-06-21         Per Abrahamsen
+;;      Added `double-prefix-only'.
+;; * 1994-02-28         Per Abrahamsen
+;;      Use 127 instead of 'delete to delete a character.
 ;; * 1994-02-03         Per Abrahamsen
 ;;      Created.
 
@@ -71,6 +75,11 @@ Each entry is a list with three elements:
 2. The string to be inserted when the key is pressed once.
 3. The string to be inserted when the key is pressed twice.")
 
+(defvar double-prefix-only t
+  "*Non-nil means that double mode mapping only works for prefix keys.
+That is, for any key `X' in `double-map',  `X' alone will be mapped
+but not `C-u X' or `ESC X' since the X is not the prefix key.")
+
 ;;; Read Event
 
 (defvar double-last-event nil)
@@ -99,6 +108,10 @@ Each entry is a list with three elements:
     (cond (unread-command-events
            ;; Artificial event, ignore it.
            (vector key))
+          ((and double-prefix-only
+                (> (length (this-command-keys)) 1))
+           ;; This is not a prefix key, ignore it.
+           (vector key))
           ((eq key 'magic-start)
            ;; End of generated event.  See if he will repeat it...
            (let ((new (double-read-event prompt))