[ESS] Easy argument list: r-autoyas

[Rainer M Krug]

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On 03/14/2011 01:16 PM, Vitalie Spinu wrote:
> "Sven Hartenstein" <lists at svenhartenstein.de> writes:
> 
>> Hi Vitalie,
>>
>> thanks again for your ideas and contribution to r-autoyas!

Hi

this sounds perfect - but it seems to break org-modes functionality of
editing a code block with C- '. Or is it only my setup?

Rainer


> 
> Pleased to be useful :), don't have much time to think about improvements
> though, but will try to keep an eye on what you do over there.
> 
> As one minor comment it might be already useful to pack the code in a
> package.  For this you need to just place (provide 'r-autoyas) at the end of
> the autoyas.el file. The users will have to download the file and place
> (require 'r-autoyas) in .emacs. See
> http://www.gnu.org/s/emacs/manual/html_node/elisp/Named-Features.html
> for more details.
> 
> The 
> (add-hook 'ess-mode-hook
>           '(lambda ()
>              (load "~/.emacs.d/plugins/r-autoyas.el")))
> 
> is not a very standard way of doing it, the hook might be executed hundreds
> of times during the session, loading autoyas each time.
> 
> You also might consider just telling the users to paste the code in their
> .emacs, so they won't have to mess with additional files and loads at all.
> 
>>
>>> First, it would be probably more convenient if "(" key would
>>> directly invoke the yas/expand.
>>
>> Yes, good point. I have changed it now so that the parentheses are not
>> part of the snippet. r-autoyas-expand has argument paren (instead of
>> no-paren as you suggested) and if it is t parentheses will be
>> inserted.
>>
>> (Your version was very skeleton-pair friendly, but would delete the
>> closing parenthesis if skeleton-pair was not used.)
> 
> Yes, that was my way of doing it. In general the following might be more
> useful:
> 
> (define-key ess-mode-map (kbd "(") '(lambda () (interactive)
>                                       (insert "(")
>                                       (r-autoyas-expand nil t))))
> 
> But in this case the closed parenthesis is not automatically inserted.
> 
> I think the ideal case would be if r-autoyas-expand would check internally
> for "(" and ")" and insert them if needed. And may be
> r-autoyas-exit-snippet-delete-remaining to check for closing ")".
> 
> 
>>
>>> Second, it is nice to have C-g to delete all the remaining arguments
>>> (as you've already suggested on your site). The easiest way I could
>>> find is to advise yas/abort-snippet. Please see below.
>>
>> Absolutely great! Included in the update.
>>
>>> Third, it is inconvenient to maintain both .emacs and .Rprofile, one
>>> way of avoiding it is to "inject" the necessary commands each time
>>> R-session starts by means of ess-post-run-hook.
> 
> One addition here, on slow machines there might be some problems with the
> default code  what ess inserts after the  hook (.help.ESS for example). The
> following seems to work more reliably:
> 
> (defun r-autoyas-inject-commands ()
>   (ess-eval-linewise
>    "r.autoyas.esc <- function(str) {
>    ....
>    str <- paste('(',str,')', sep='')
>    str
>    }\n"
>    t nil nil t)
>   )
> 
> 
>>
>> Also perfect! I was actually wondering whether something like this was
>> possible and you answered the question before I even asked. Included
>> in the update.
>>
>> I gratefully mention your full name in the Changelog. How is this for
>> you? Would you prefer it any different?
> 
> No worries at all, it's open-source isn't it :)
> 
> And welcome to the lisp which is amassing and so beautiful language. I am sure
> this project will bring you a lot of joy and knowledge.
> 
> Vitalie.
> 
> ______________________________________________
> ESS-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/ess-help


- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

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