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Re: beginning-of-defun (again)
From: |
Alan Mackenzie |
Subject: |
Re: beginning-of-defun (again) |
Date: |
Thu, 29 Oct 2015 12:46:05 +0000 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
Hello, Andreas.
On Thu, Oct 29, 2015 at 12:24:48PM +0100, Andreas Röhler wrote:
> Hi guys,
> maybe it's time to have a reasonable default-behavior of
> beginning-of-defun in Emacs Lisp.
> IMO there is no reason for stuff like
> open-paren-in-column-0-is-defun-start
Unfortunately, there is. Setting it to nil ensures accurate recognition
of non-nested parens, though this can be slow, sometimes very slow.
Setting it to non-nil makes it fast, but sometimes so inaccurate it
looks like a bug.
> A function resp. top-level-form starts if the beginning of a list is
> followed by a respective keyword.
Not necessarily: how does Emacs know whether something looking like a
"top-level-form" is actually at the top level or not? When
open-paren-in-column-0-is-defun-start is non-nil, it need scan no
further back than the first such paren encountered. When
o-p-i-c-0-i-d-s is nil, it must scan all the way from the beginning of
the file.
> The list of keywords being customizable seems a plus :)
This would not work in all modes.
> Cheers,
> Andreas
--
Alan Mackenzie (Nuremberg, Germany).
- Re: beginning-of-defun (again), (continued)
- Re: beginning-of-defun (again), John Wiegley, 2015/10/29
- Re: beginning-of-defun (again), Richard Stallman, 2015/10/30
- Re: beginning-of-defun (again), Alan Mackenzie, 2015/10/30
- Re: beginning-of-defun (again), John Wiegley, 2015/10/30
- Re: beginning-of-defun (again), Richard Stallman, 2015/10/31
Re: beginning-of-defun (again),
Alan Mackenzie <=
Re: beginning-of-defun (again), Alan Mackenzie, 2015/10/29
Re: beginning-of-defun (again), Richard Stallman, 2015/10/29