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bug#54374: 29.0.50; previous-completion fails at beginning of completion
From: |
Philip Kaludercic |
Subject: |
bug#54374: 29.0.50; previous-completion fails at beginning of completions buffer |
Date: |
Sun, 13 Mar 2022 20:39:53 +0000 |
Juri Linkov <juri@linkov.net> writes:
> X-Debbugs-Cc: Philip Kaludercic <philipk@posteo.net>
>
> This is not reproducible in Emacs 28, so looks like a recent regression:
This seems to fix it:
diff --git a/lisp/simple.el b/lisp/simple.el
index accc119e2b..7d47aba1ee 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -9125,7 +9125,7 @@ next-completion
(unless (get-text-property (point) 'mouse-face)
(goto-char (next-single-property-change (point) 'mouse-face nil
end)))
(setq n (1- n)))
- (while (< n 0)
+ (while (and (< n 0) (< 1 (point)))
(let ((prop (get-text-property (1- (point)) 'mouse-face)))
;; If in a completion, move to the start of it.
(when (and prop (eq prop (get-text-property (point) 'mouse-face)))
> 0. emacs -Q
> 1. M-x TAB
> 2. move point to the beginning of the *Completions* buffer
> 3. type S-TAB (<backtab>)
>
> Debugger entered--Lisp error: (args-out-of-range 0 0)
> get-text-property(0 mouse-face)
> next-completion(-1)
> previous-completion(1)
> funcall-interactively(previous-completion 1)
> command-execute(previous-completion)
> completing-read-default("M-x " ...)
> read-extended-command()
> command-execute(execute-extended-command)
>
>
--
Philip Kaludercic