Re: indentation nested statements recently broken

[Andries E. B. <And...@cw...>]

Hi Alan!

On Thu, Apr 10, 2008 at 08:38:28PM +0000, Alan Mackenzie wrote:

>>>     (defun ab-+-from-indentation-point (elt)
>>>       "Indent the line one step from the anchor point's line's indentation point."
>>>       (save-excursion
>>>         (goto-char (c-langelem-pos elt))
>>>         (back-to-indentation)
>>>         (make-vector 1 (+ (current-column) c-basic-offset))))
>>>
>>> , which you would have applied to your setup with C-c C-o for testing,
>>> and then, more permanently, with
>>>
>>>     (c-set-offset 'substatement 'ab-+-from-indentation-point)
>>>
>>> in your .emacs.  :-)

>> Perhaps. (I just tried precisely this and it failed. Have not
>> investigated further.)
> 
> Please do.  I tested it first, and it worked for me.

Last time I tested on the case with a block, and there it fails,
now I see that with just nested "for"s it works.

>>>> then cc-mode indents this as
>>>>         for (x=x0; x<x1; x++) for (y=y0; y<y1; y++) for (z=z0; z<z1; z++) {
>>>>                                 do_something(a[x][y], b[x][y], c[z], x, y, z);
>>>>                                 do_something_else(a[x][y]-b[x][y], x+y+z);
>>>>                         }
>>>> Strange and ugly.
> 
>>> Funny, for me it does indent it the way you want.  This works with style
>>> "gnu".  What have you got set on the "do_something(a[x]..." line?  Please
>>> do a C-c C-o, and tell me what it tells you.
> 
>> On the do_something line ^C^O replies: statement-block-intro
>> and ^C^S says: Syntactic analysis:
>> ((substatement 3975) (substatement 3975) (statement-block-intro 3975))
> 
> Where exactly is the anchor point 3975 in your file?  For me, it's at the
> "for".

Yes. More precisely, at the first, the outermost "for".

>> I tried gnu instead of K&R, and also not specifying any style,
>> and things changed but not to the desired state.
> 
> Hmmm.  "changed"?  For the better?

No. You know - 2 spaces instead of a tab and that kind of thing.
(So instead of getting 3 tabs I got 6 spaces, while the for it
should align with was indented 2 spaces.)

Andries