[ESS] Help configuring auto-complete

[Ista Zahn]

Hi Vitalie,

Great, thank you for the comprehensive reply. For now I'm going to
disable argument auto-completion using the second method you
described.

More generally, I like having auto-complete menus popping up all over
the place -- for me it really is just this situation (argument
completion menu triggered by ",") where it gets in my way.

Best,
Ista
On Tue, May 15, 2012 at 11:40 AM, Vitalie Spinu <spinuvit at gmail.com> wrote:
>
>>>>> Ista Zahn <istazahn at gmail.com>
>>>>> on Tue, 15 May 2012 09:56:42 -0400 wrote:
>
>  > c(x = 1,
>
>  > with the cursor immediately after the comma, the auto-complete menu
>  > pops up offering to complete "recursive=".
>  > I would really appreciate it if  you can tell me how to disable just
>  > this specific feature.
>
> What feature precisely? disable it inside c() or disable argument
> completion altogether?
>
>  > The manual suggests that I should look at the docstring of
>  > ac-use-auto-complete, but I can't seem to find it.
>
> it should be ess-use-auto-complete, it's a type in new features
> section. Thanks.
>
>
>
> On a general note, I am still not clear what default ac set-up is the
> most meaningful. And user input is highly valuable here. I agree that
> the current one is too intrusive. Though auto-popup works fine in elisp
> buffers it is pretty annoying in R buffers because most of the names are
> short.
>
> There are three general ways that the user can go about it.
>
> First, is to deactivate ac auto pop-up by setting ac-auto-show-menu to
> nil and make TAB to trigger the menu:
>
>  (ac-set-trigger-key "TAB").
>
> Second, is to disable auto-completion of arguments. There are 2 basic R
> sources `ac-source-R-objects' and `ac-source-R-args'. The third source
> ac-source-R combines conveniently the previous 2 and is activated by
> default. Add only one of them to ac-sources variable:
>
> (defun my-ac-ess-config ()
>  (setq ac-souces
>        '(ac-source-R-objects ac-source-filename ac-source-words-in-buffer)))
>
> (add-hook 'ess-mode-hook 'my-ac-ess-config)
> (add-hook 'ess-post-run-hook 'my-ac-ess-config)
>
> Third, you can look at definitions of these souces and redefine
> them. Particularly you can configure the prefix parameter to be 1 or
> even 2 (instead of the default 0):
>
> (setq ac-source-R
>      '((prefix . ess-ac-start)
>       (requires . 2)
>       (candidates . ess-ac-candidates)
>       (document . ess-ac-help)))
>
> But then you won't have auto completion of arguments at "(" and
> ",". Given the current eldoc functionality I think this last option
> should actually be the default.
>
> Best,
> Vitalie.