[ESS] Indentation level

[David Scott]

David Scott wrote:
> David Scott wrote:
>> Martin Maechler wrote:
>>> On Tue, May 11, 2010 at 16:32, Rodney Sparapani <rsparapa at mcw.edu> wrote:
>>>
>>>> On 05/11/10 09:11 AM, gerald.jean at dgag.ca wrote:
>>>>
>>>>> for me the default is 4 as well and setting it in whatever fashion has not
>>>>> effect on the local buffer.
>>>>>
>>>>> ess-indent-level is a variable defined in `ess-custom.el'.
>>>>> Its value is 4
>>>>> Local in buffer DataPrep.q; global value is 2
>>>>>
>>>>> I setted it as recommanded by Rich and yes, I restarted Emacs.
>>>>>
>>>>> Gérald Jean
>>>>>
>>>>>
>>>> Hi Gerald:
>>>>
>>>> But the sources say 2 and that is what I see as well.  AFAICT, it
>>>> hasn't changed recently either.  Is everybody running 5.8?
>>>>
>>> Yes, the default is definitely 2 and has always been so.
>>> As R-core, we've set "our default" to 4, and indeed I have been preferring
>>> that myself;
>>> but nonetheless, the ESS default has always been 2.
>>>
>>> One way to set it to 4 and change other things as well, is using
>>> what we have had in the "R Internals" (and previously "R Extensions") manual
>>> for many years;
>>> e.g. from the Swiss (CH) CRAN mirror:
>>>
>>>     http://stat.ethz.ch/CRAN/doc/manuals/R-ints.html#R-coding-standards
>>> (about one page down):
>>>
>>>      ;;; ESS
>>>      (add-hook 'ess-mode-hook
>>>                (lambda ()
>>>                  (ess-set-style 'C++ 'quiet)
>>>                  ;; Because
>>>                  ;;                                 DEF GNU BSD K&R C++
>>>                  ;; ess-indent-level                  2   2   8   5   4
>>>                  ;; ess-continued-statement-offset    2   2   8   5   4
>>>                  ;; ess-brace-offset                  0   0  -8  -5  -4
>>>                  ;; ess-arg-function-offset           2   4   0   0   0
>>>                  ;; ess-expression-offset             4   2   8   5   4
>>>                  ;; ess-else-offset                   0   0   0   0   0
>>>                  ;; ess-close-brace-offset            0   0   0   0
>>> 0
>>>
>>>           [.... other recommendatinos omitted here ...]
>>>
>>> and as others have said repeatedly on this thread:
>>> Yes, you should and I think *must* set this via adding to the ess-mode-hook
>>> BTW: In the above Emacs code, most are comments showing you the diverse
>>> style settings,
>>> mentioning indeed that the default ("DEF") is at 2.
>>>
>>> Martin Maechler, ETH Zurich
>>>
>> OK. I finally got this to work, simple really, only took a few hours of 
>> messing about. Changed C++ to DEF in Martin's code above:
>>
>> ;;; ESS
>>       (add-hook 'ess-mode-hook
>>                 (lambda ()
>>                   (ess-set-style 'DEF 'quiet)
>>                   ;; Because
>>                   ;;                                 DEF GNU BSD K&R C++
>>                   ;; ess-indent-level                  2   2   8   5   4
>>                   ;; ess-continued-statement-offset    2   2   8   5   4
>>                   ;; ess-brace-offset                  0   0  -8  -5  -4
>>                   ;; ess-arg-function-offset           2   4   0   0   0
>>                   ;; ess-expression-offset             4   2   8   5   4
>>                   ;; ess-else-offset                   0   0   0   0   0
>>                   ;; ess-close-brace-offset            0   0   0   0   0
>>                   (add-hook 'local-write-file-hooks
>>                             (lambda ()
>>                               (ess-nuke-trailing-whitespace)))))
>>       (setq ess-nuke-trailing-whitespace-p 'ask)
>>       ;; or even
>>       ;; (setq ess-nuke-trailing-whitespace-p t)
>>       ;;; Perl
>>       (add-hook 'perl-mode-hook
>>                 (lambda () (setq perl-indent-level 4)))
>>
>> and lo and behold I got the default settings.
>>
>> Thanks for all advice. Sorry to be obtuse, I just don't get lisp. Maybe 
>> it all stems from my Computer Science lecturer telling me lisp is an 
>> acronym for lots of irritating silly parentheses ...
>>
>> I do love Emacs + ESS + AUCTeX + RefTex though. Brilliant when it is all 
>> working, so thanks to all contributors.
>>
>> David Scott
>>
> Oh dear, wrong again. This is only gave me the indentation I wanted 
> because the command gave an error.
> 
> David Scott

Not sure if everyone else is using linux but this is on Windows using 
Vince Goulet's emacs-23.1-modified, freshly downloaded and installed. 
Currently that uses ESS 5.8. I even had available a Windows 7 machine 
with a just installed operating system, no existing .emacs. End result 
was I could get none of the suggestions from the list to work. The only 
way I got what I wanted was to hack ess-custom.el changing the values in 
the C++ entry in ess-default-style-list from 4 to 2 throughout. That is 
a pretty disgusting hack I know.

I am not sure if the problem is something Vince does in preparing his 
distribution.

David Scott




-- 
_________________________________________________________________
David Scott	Department of Statistics
		The University of Auckland, PB 92019
		Auckland 1142,    NEW ZEALAND
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Email:	d.scott at auckland.ac.nz,  Fax: +64 9 373 7018

Director of Consulting, Department of Statistics