bug#5570: Emacs 23.1.91.1 C++ mode "ESC C-q" and TAB indenting issue.

[Bob]

Alan,

That's good news! Please let me know when you get it fixed and I'd like to
try it out.

BTW, the indenting and paren matching is a world better than 21.2, esp. with
regard to template '<' and '>' characters. Good job!

Bob

-----Original Message-----
From: Alan Mackenzie [mailto:acm@muc.de] 
Sent: Thursday, February 18, 2010 7:13 AM
To: Bob
Cc: 'Chong Yidong'; 5570@debbugs.gnu.org
Subject: Re: bug#5570: Emacs 23.1.91.1 C++ mode "ESC C-q" and TAB indenting
issue.

Hi, Bob,

On Wed, Feb 17, 2010 at 08:40:36AM -0800, Bob wrote:
> Alan,

> Attached is "Foo.cpp" and "dribble" (if I did it correctly, dribble
recorded
> what I typed).

> It illustrates a case where indentation is one level deeper than it should
> be. (The other case we've been working on is one level shallower than it
> should be). Maybe they are related?

I suspect not, but who knows?  :-(

However, I can reproduce this bug; the dribble file and your CC Mode
configuration file were utterly essential to my doing so.  Thanks!

> visit-file "Foo.cpp", note indentation for "class Bar" is too deep. Now,
TAB
> on the "class Bar" line the indentation corrects. If you reconstruct the
> file from "dribble" you should see TAB on the "class Bar" line incorrectly
> indents too deep.

Yes.

> My ".emacs" file sets indentation to 2 spaces. I would guess there is an
> issue where
> the default (I think 4 spaces) is being used instead of my setting.

No, that's not it.  In the course of creating this file, as per your
dribble, some "text properties" (deep in the bowels of CC Mode) are being
spuriously applied to certain characters in the buffer.  I'll track down
exactly which keystroke provoked this, and hopefully be able to fix it
sometime soonish.

Thanks for taking all this trouble to help me reproduce the bug.

> Bob

-- 
Alan Mackenzie (Nuremberg, Germany).