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Re: [Emacs-diffs] trunk r116461: Connect electric-indent-mode up with CC
Re: [Emacs-diffs] trunk r116461: Connect electric-indent-mode up with CC Mode. Bug #15478.
Thu, 3 Apr 2014 21:53:04 +0000
On Mon, Mar 31, 2014 at 08:11:58PM +0300, Dmitry Gutov wrote:
> On 30.03.2014 17:57, Alan Mackenzie wrote:
> >> This could be considered a reason to improve the
> >> indent-line-function in text-mode. `indent-relative' offers behavior
> >> that's pretty close. Maybe it could be made to follow the behavior
> >> of auto-fill even closer.
> > Notice, here, how we're no longer talking about electric indentation, but
> > rather about newline-and-indent. The two topics are distinct.
> Yes, but I think we're discussing both in this thread. FWIW, I think
> we're in agreement about electric indentation on RET. See my message
> here, and also Stefan's reply:
Yes, I think we're in agreement with eachother, but not with Stefan. He
has decided to conflate the RET/C-j bindings and electric-indent-mode,
and to have these bindings apparently flip each time e-i-m is called.
He's also decided to do this although there's never been any meaningful
discussion of it here, and there isn't going to be any.
> > I usually think of html, markdown, and such like, as the "etc." in
> > "programming modes (etc.)".
> Yeah, okay. Which other modes exactly need newline-and-indent on RET
> could be a matter of debate, but one possible criteria is "mode has a
> meaningful/specialized indentation function".
Hmm. I'm not sure that gets us very far, in practice. What does
"meaningful/specialized" mean? I'll be more specific: programming modes
which use syntactic indentation (i.e. most of them) and the various
markup-like modes which are "like" programming languages.
> > I think RET should do the most natural sort of newline, and C-j the
> > subsidiary one, whatever they may happen to be for a particular mode.
> Sounds okay, I guess.
> >> As long as this new mode is divorced from electric-indent-mode, I'd be
> >> happy.
> > This is a key point.
> It could be something called like `old-newline-keys-mode'. Appropriate
> major modes would swap RET and C-j bindings, and the above minor mode
> would force them all back to (RET C-j) -> (newline newline-and-indent).
Again, Stefan has decided there will be no such new mode, and that its
functionality is going to be twisted up with electric-indent-mode, rather
than being independent of it. It now seems us discussing this further
would just be a waste of time.
> >> This specific behavior is a consequence of using `newline-and-indent'.
> > No, not at all. It's a consequence of electric behaviour getting
> > entangled with newline-and-indent.
> It's the same if I disable `electric-indent-mode' but bind RET to
> And if `electric-indent-mode' didn't do `-and-indent' but retained the
> electric indent on RET, a similar example is easy to demonstrate:
> Press RET, see the same result.
Yes. Again, if we're in a programming mode that's what we want nearly
all the time - it's what electric indentation is for (despite all the
disadvantages of doing it on \n). In non-programming modes it's what we
don't want. It now seems Somebody (tm) is going to have to trawl through
all major modes disabling electric indentation for lots of them.
> IOW, text-mode could be considered in trouble if RET triggers call to
> indentation at any line.
Alan Mackenzie (Nuremberg, Germany).
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