GNU bug report logs - #12254
24.2; completion fails backward-char

Previous Next

Package: emacs;

Reported by: Leo <sdl.web <at> gmail.com>

Date: Wed, 22 Aug 2012 02:42:01 UTC

Severity: normal

Tags: notabug

Found in version 24.2

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

Full log

Message #10 received at control <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Leo <sdl.web <at> gmail.com>
Cc: 12254-done <at> debbugs.gnu.org
Subject: Re: bug#12254: 24.2; completion fails backward-char
Date: Wed, 29 Aug 2012 14:05:19 -0400

tags 12254 notabug
thanks

> (defun b-completion-at-point ()
>   (let ((beg (progn
>                (skip-syntax-backward "w")
>                (point)))
>         (end (progn
>                (skip-syntax-forward "w")
>                (point))))
>     (list beg end '("IGNORE" "DEBUG" "HELLO"))))

This needs to save-excursion.

> This is a regression. It doesn't happen in Emacs 23.4.

That's only because completion-at-point-functions is used less often so
the bug in the above code doesn't bite as often.
But your above completion function is already buggy in Emacs-23.4 since
it can't complete "IG!R" to "IGNORE", whereas after adding the
save-excursion such completion works just fine.


        Stefan
This bug report was last modified 12 years and 263 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.