Re: [Bug-AUCTeX] 11.83; problem with emacs' auto-fill and auctex's folding mode in noweb mode

[Patrick Drechsler]

Hi Ralf,

Ralf Angeli wrote:
> * Patrick Drechsler (2006-10-08) writes:
>
> > I am not sure if this is a problem which is more related to
> > AUCTeX's folding mode or noweb-mode.

> Do you save this as a LaTeX or a noweb file?

Sorry for not including this information in my original post. This
minimal example file is stored as a noweb file (ending in *.Rnw; I.e. 
testing.Rnw).

> The sentence above seems to imply that noweb mode was activated
> during testing.  Is this correct?  Which version of noweb-mode.el are
> you using in case it is?

I'm using the noweb-mode included in the Emacs-CVS version I'm using 
(`M-x noweb-mode-version'):

Furthermore I have this in my init.el[1]

------------
Thorsten's noweb-mode (PRERELEASE). RCS: Imported to ESS Subversion 
repository and RCS ids not maintained.
------------

Maybe the Emacs CVS version which is used as snapshot is at fault? (`M-x 
emacs-version'):

------------
GNU Emacs 22.0.50.1 (i486-pc-linux-gnu, GTK+ Version 2.8.17) of 
2006-08-24 on vernadsky, modified by Debian
------------


> > Using AUCTeX 11.83 and the CVS version mentioned below breaks 
> > auto-filling (line-breaking at a certain column length).
> > Especially: `M-q' goes into an endless loop taking 100% CPU.
>
> I cannot reproduce this with AUCTeX 11.83, CVS Emacs and the version 
> of noweb-mode.el currently downloadable from 
> <URL:http://www.tug.org/tex-archive/web/noweb/src/elisp/noweb-mode.el>.

I am using the current ESS version (incl. noweb-mode.el):

http://ess.r-project.org/downloads/ess/ess-5.3.3.tgz

>  Are there any error messages in the *Messages* buffer?

No, there are no error messages in the *Messages* buffer. Emacs just 
hangs (and uses 100% CPU).

Are there any tests I can perform or should I post this question to the 
ESS mailing list?


I am sorry not to have to much time at hand for debugging. If I get the 
chance I will download the CTAN version of noweb and test again. 
Although I think the normal user will take (a) the version available 
with his/her distribution or (b) go with the current auctex/ess version 
(changing one's Emacs version might influence more things than expected).

Otherwise feel free to forward to the ESS ML.

TIA

Patrick


Footnote:
[1]

;; Sweave mode:
(defun Rnw-mode ()
  (require 'ess-noweb)
  (noweb-mode)
  (if (fboundp 'R-mode)
      (setq noweb-default-code-mode 'R-mode)))
(add-to-list 'auto-mode-alist '("\\.Rnw\\'" . Rnw-mode))
(add-to-list 'auto-mode-alist '("\\.Snw\\'" . Rnw-mode))

(setq reftex-file-extensions
      '(("Snw" "Rnw" "nw" "tex" ".tex" ".ltx") ("bib" ".bib")))
(setq TeX-file-extensions
      '("Snw" "Rnw" "nw" "tex" "sty" "cls" "ltx" "texi" "texinfo"))