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master d1aacce: Make `newline' check the argument earlier
From: |
Lars Ingebrigtsen |
Subject: |
master d1aacce: Make `newline' check the argument earlier |
Date: |
Thu, 30 Sep 2021 03:03:26 -0400 (EDT) |
branch: master
commit d1aacceae939318f419e0c265358e041c53f1eea
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>
Make `newline' check the argument earlier
* lisp/simple.el (newline): Signal an error earlier to avoid
peculiar behaviour after getting a backtrace (bug#50900).
---
lisp/simple.el | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lisp/simple.el b/lisp/simple.el
index 7eba331..11a6a4f 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -589,6 +589,8 @@ text-property `hard'.
A non-nil INTERACTIVE argument means to run the `post-self-insert-hook'."
(interactive "*P\np")
(barf-if-buffer-read-only)
+ (when (< arg 0)
+ (error "Repetition argument has to be non-negative"))
;; Call self-insert so that auto-fill, abbrev expansion etc. happen.
;; Set last-command-event to tell self-insert what to insert.
(let* ((was-page-start (and (bolp) (looking-at page-delimiter)))
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