[ESS] Flyspell and Sweave

Marc Schwartz marc_schwartz at me.com
Wed May 27 02:27:16 CEST 2009

On May 26, 2009, at 7:15 PM, Giuseppe wrote:

> Dear all,
> This issue is driving me crazy. I have been googling the web for three
> straight days, yet it is still afflicting me.
>> From my emacs:
> (add-hook 'TeX-mode-hook (lambda ()
>                             (TeX-fold-mode 1)
>                 (reftex-mode t)
>                 (flyspell-mode t)
>                 (setq flyspell-sort-corrections nil)
>                 (turn-on-auto-fill)))
> and
> (defun Rnw-mode ()
>  (require 'ess-noweb)
>  (noweb-mode)
>  (if (fboundp 'R-mode)
>      (setq noweb-default-code-mode 'R-mode))
>  )
> The problem here is flyspell. It is activated through the hook
> (TeX-mode-hook). However, if flyspell-mode is enabled the editing of  
> the
> chinks is extremely slow. I have tried to hook (flyspell-mode nil) to
> Rnw-mode-hook, but it does not work (well, flyspell is disabled but  
> the
> editing is still very slow.).
> I can live without flyspell. The problem is that to disable
> flyspell-completely I have to edit my .emacs, since if I simply M-x
> flyspell-mode, flyspell-mode will be re-enabled one I go outside to  
> the
> chunk and back in tex (since the hook is reloaded).
> Any suggestion?
> P.S.: Is there a way to exclude the chunks from being parsed by  
> flyspell?
> This would be optimal, but I looked at flyspell.el and I do not see  
> this
> possibility.

Any chance that you are using Emacs 23?

If so, there is a known bug at the moment with flyspell and Emacs 23:


Note that several reports there reference OSX, including my own, but  
it is not limited to OSX.

As a result, I have disabled flyspell temporarily and am using ispell  
as needed to check spelling in the buffer or in highlighted sections.

I don't have this problem with any emacs application based upon 22,  
whether it be Emacs or Aquamacs.


Marc Schwartz

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