(number-to-register): Move point as a side effect.

1 files changed, 6 insertions, 10 deletions

diff --git a/lisp/register.el b/lisp/register.el
index 69f33ca4b24..eb0aa8107c2 100644
--- a/lisp/register.el
+++ b/lisp/register.el
@@ -139,21 +139,17 @@ delete any existing frames that the frame configuration doesn't mention.
 (defun number-to-register (arg char)
   "Store a number in a register.
 Two args, NUMBER and REGISTER (a character, naming the register).
-If NUMBER is nil, digits in the buffer following point are read
-to get the number to store.
+If NUMBER is nil, a decimal number is read from the buffer starting
+at point, and point moves to the end of that number.
 Interactively, NUMBER is the prefix arg (none means nil)."
   (interactive "P\ncNumber to register: ")
   (set-register char 
                 (if arg
                     (prefix-numeric-value arg)
-                  (if (looking-at "[0-9][0-9]*")
-                      (save-excursion
-                       (save-restriction
-                        (narrow-to-region (point)
-                                          (progn (skip-chars-forward "0-9")
-                                                 (point)))
-                        (goto-char (point-min))
-                        (read (current-buffer))))
+                  (if (looking-at "\\s-*-?[0-9]+")
+                      (progn
+                        (goto-char (match-end 0))
+                        (string-to-int (match-string 0)))
                     0))))
 
 (defun increment-register (arg char)