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author | Lars Ingebrigtsen <larsi@gnus.org> | 2021-09-30 09:03:18 +0200 |
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committer | Lars Ingebrigtsen <larsi@gnus.org> | 2021-09-30 09:03:18 +0200 |
commit | d1aacceae939318f419e0c265358e041c53f1eea (patch) | |
tree | 7da7e0b387c2ca85dafdd0833eb7c5e4bd37e27e /lisp | |
parent | c42af5aee74f310bdcd63aac96b1c02ec07a1c50 (diff) | |
download | emacs-d1aacceae939318f419e0c265358e041c53f1eea.tar.gz emacs-d1aacceae939318f419e0c265358e041c53f1eea.tar.bz2 emacs-d1aacceae939318f419e0c265358e041c53f1eea.zip |
Make `newline' check the argument earlier
* lisp/simple.el (newline): Signal an error earlier to avoid
peculiar behaviour after getting a backtrace (bug#50900).
Diffstat (limited to 'lisp')
-rw-r--r-- | lisp/simple.el | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lisp/simple.el b/lisp/simple.el index 7eba33116de..11a6a4f1fd3 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))) |