From: "Aaron S. Hawley" <aaron.s.hawley@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 2379@emacsbugs.donarmstrong.com, bug-gnu-emacs@gnu.org
Subject: bug#2379: [PATCH?] lisp.el: beginning-of-defun
Date: Thu, 19 Feb 2009 23:27:33 -0500 [thread overview]
Message-ID: <aea22dab0902192027v5587d98cocc7e0b6212e30b03@mail.gmail.com> (raw)
In-Reply-To: <jwvtz6qs5kx.fsf-monnier+emacsbugreports@gnu.org>
Hey Stefan. Thanks for the reply.
>> - (progn (goto-char (1- (match-end 0)))) t))
>> + (progn (goto-char (1- (match-end 0))) t)))
>
> I think that was the intention. Note that it turns out that the two
> forms are equivalent in this context (because goto-char never returns
> nil).
Yes, I had noticed sloppy programming got lucky.
> AFAICT, proper support for 0 would require a serious rethink of BOD's
> semantics: currently if you're inside defun number N, then (BOD i) moves
> to (N-(i-1)) is i is positive and to (N-i) if i is negative. I.e. it
> moves to N if i=1 and to N+1 if i=-1, so where should 0 move to: there
> is no other defun between those two.
Fair enough.
I notice that C-0 M-x end-of-defun is the same as just regular M-x
end-of-defun. Also, It's worth citing beginning-of-line's behavior
here, since it departs by moving in the oppisite direction -- N-1+i.
Anyway, I'm just surprised this critical code for Lisp support is this sloppy.
Cheers,
/a
next prev parent reply other threads:[~2009-02-20 4:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-19 2:37 bug#2379: [PATCH?] lisp.el: beginning-of-defun Aaron S. Hawley
2009-02-19 17:31 ` Stefan Monnier
2009-02-20 4:27 ` Aaron S. Hawley [this message]
2009-02-20 15:25 ` Stefan Monnier
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