Yasnippets in .Rnw files: TAB-expansion not working anymore

[mhofert]

Hi,

I have exactly the problem as described here:
http://groups.google.com/group/smart-snippet/browse_thread/thread/8206a23037f598b1/39ed819692df63ad?lnk=gst&q=rnw&pli=1
Unfortunately, the described solution does not work -- TAB does not
expand (ya)snippets in my .Rnw files. You can find a detailed
description of the problem on:
http://tex.stackexchange.com/questions/49530/yasnippet-sweave-how-to-make-snippets-work-from-rnw-files
I work on Mac OS X 10.7.3 with the very latest version of R (and ESS) and yasnippet-0.6.1c.

Cheers,

Marius

[joaotavora]

Please try upgrading to the latest HEAD version of yasnippet, found on
github and check back here. Do not use the workaround described in the
thread since it is out of date. I'm away from my computer at the moment but
will have a look at this soon. Thanks.

On Sat, Mar 31, 2012 at 7:33 AM, mhofert <
reply@reply.github.com

wrote:

Hi,

I have exactly the problem as described here:

http://groups.google.com/group/smart-snippet/browse_thread/thread/8206a23037f598b1/39ed819692df63ad?lnk=gst&q=rnw&pli=1
Unfortunately, the described solution does not work -- TAB does not
expand (ya)snippets in my .Rnw files. You can find a detailed
description of the problem on:

http://tex.stackexchange.com/questions/49530/yasnippet-sweave-how-to-make-snippets-work-from-rnw-files
I work on Mac OS X 10.7.3 with the very latest version of R (and ESS) and
yasnippet-0.6.1c.

Cheers,

Marius

---

Reply to this email directly or view it on GitHub:
#231

Joo Tvora

[mhofert]

Thanks a lot for your quick response. I'll give it a try and get back to you.

[mhofert]

I installed the latest version from https://github.com/capitaomorte/yasnippet/tree/jit-loading. The problem remains. I can use M-x yas/expand to expand a snippet when the point is in the LaTeX part of an .Rnw file, but I can't use TAB to expand a snippet.

[mhofert]

Hi, did you have a chance to look at it so far?
Can you reproduce the problem?

[joaotavora]

Hi.

The problem is that noweb-minor-mode-map already defines [tab] as a
local keybinding for noweb-indent-line.

1. I would recommend that you try out the "tighter-tab" branch, available
   from https://github.com/capitaomorte/yasnippet/tree/tighter-tab.
   I plan to merge this into the trunk once I have sufficient confidence with
   unit tests in place. The reason I haven't done it so far is that it hinges
   on
   yasnippet taking advantage of a super-keymap that is superior to all the
   other keymaps and I still don't know how "legal" that is.

2. Alternatively you can use

   (add-hook 'ess-mode-hook #'(lambda () (local-set-key [tab]
   'yas/expand)))

in the normal master branch, and maybe even the older 0.6 version (though I
recommend you upgrade to the latest, however poorly documented it is).

Either way, as always, if yasnippet finds nothing to do, it should call the
fallback binding.

Hope this works,
Joo Tvora

On Wed, Apr 4, 2012 at 12:30 PM, mhofert <
reply@reply.github.com

wrote:

Hi, did you have a chance to look at it so far?
Can you reproduce the problem?

---

Reply to this email directly or view it on GitHub:
#231 (comment)

Joo Tvora

[mhofert]

Dear Joo,

1. I tried your first solution. Still, tab-expansion does not work. I am not sure
   if I installed the tighter branch correctly. I went to the URL you provided and
   did:

cd ~/.emacs.d/plugins
git clone https://github.com/capitaomorte/yasnippet

Something I am wondering: That's precisely the same git command as is used for
the other branch(es). Is that correct? Because if it is wrong, it might be that
I haven't installed the tighter branch correctly.

1. I then tried your second solution. But also here, I can use M-x yas/expand to
   expand a snippet, but not TAB. Note that I'm using the latest version (12.04) of
   ESS. Is this a problem? When I start R and check ess-mode-hook (through
   customization), I see the entry (lambda nil (local-set-key [tab](quote
   yas/expand))). Still, it does not seem to work.

Cheers,

Marius

[joaotavora]

On Sun, Apr 8, 2012 at 9:22 AM, mhofert <
reply@reply.github.com

wrote:

Dear Joo,

1. I tried your first solution. Still, tab-expansion does not work. I am
   not sure
   if I installed the tighter branch correctly. I went to the URL you
   provided and
   did:

cd ~/.emacs.d/plugins
git clone https://github.com/capitaomorte/yasnippet

Something I am wondering: That's precisely the same git command as is used
for
the other branch(es). Is that correct? Because if it is wrong, it might be
that
I haven't installed the tighter branch correctly.

1. I then tried your second solution. But also here, I can use M-x
   yas/expand to
   expand a snippet, but not TAB. Note that I'm using the latest version
   (12.04) of
   ESS. Is this a problem? When I start R and check ess-mode-hook (through
   customization), I see the entry (lambda nil (local-set-key [tab](quote
   yas/expand))). Still, it does not seem to work.

Cheers,

Marius

---

Reply to this email directly or view it on GitHub:
#231 (comment)

1. To try out a a specific branch, you have to switch to it after cloning
   (there are other ways). But basically you have to git checkout tighter-tab in the repository dir after cloning, then make sure emacs sees
   the new yasnippet.el
2. This should also work, I don't understand why not. I'm not in front of
   my computer right now, but try this directly in a buffer where you are
   experiencing the problem

M-x eval-expression RET (local-set-key [tab] 'yas/expand) RET

or maybe try this variation

M-x eval-expression RET (local-set-key (kbd "TAB") 'yas/expand) RET

If the second variation works, use that instead of the one I provided in
the previous reply.

Joo Tvora

[mhofert]

Thanks very much, Joo. I could switch to the tighter-tab branch and it now works!
It would be great if this feature was also in the "standard" branch.

[mhofert]

Unfortunately, I was too fast. Switching to the tighter-tab branch interferes with org-mode. It is not possible to expand sections in an org-file anymore with tab....

[mhofert]

Concerning your other solution:

1. M-x eval-expression RET (local-set-key [tab] 'yas/expand) RET
   => this works when executed from within the .Rnw file. However, it does not work anymore when I have it in .emacs. How can I make this work from within .emacs?

2. M-x eval-expression RET (local-set-key (kbd "TAB") 'yas/expand) RET
   => this does not work when executed locally in the .Rnw file.

[mhofert]

I guess I found something. This code solved it (for now):

(add-hook 'LaTeX-mode-hook
'(lambda()
(local-set-key [tab] 'yas/expand)))

I was wondering about the ess-mode-hook since at the point where I want to expand snippets the mode of the file is LaTeX and not ESS/R anymore. So simply replace ess-mode-hook by LaTeX-mode-hook and it should work.

I will test that and (if necessary) get back to you (if it doesn't work).

Cheers,

Marius

[npostavs]

Closing as solved.