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Re: Strange behavior of (beginning-of-defun 0)
From: |
Marcin Borkowski |
Subject: |
Re: Strange behavior of (beginning-of-defun 0) |
Date: |
Wed, 22 Feb 2017 10:13:29 +0100 |
User-agent: |
mu4e 0.9.19; emacs 26.0.50.5 |
On 2017-02-08, at 06:29, Marcin Borkowski <address@hidden> wrote:
> Hi all,
>
> put this in an Elisp buffer:
>
> --8<---------------cut here---------------start------------->8---
> (defun a ()
> nil)
> -!-(defun b ()
> nil)
> --8<---------------cut here---------------end--------------->8---
>
> put the point where the -!- is (of course, "-!-" is only a marker and
> should not be in the buffer;-)) and say M-: (beginning-of-defun 0) (or
> C-u 0 C-M-a). The point goes up one line.
>
> Is that intended? Is the behavior of (beginning-of-defun 0) defined at
> all?
Hi all,
I spent a few minutes looking into this, and it seems that while a test
for zero argument is actually present in `beginning-of-defun-raw', it
(a) is (imho) located in the wrong place (too late in the `cond') and
(b) returns t instead of nil (so that `beginning-of-defun' moves to the
bol instead of not moving the point at all). So, here's a patch
correcting this. WDYT?
Best,
--
Marcin Borkowski
0001-Fix-beginning-of-defun-raw-0.patch
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