Re: [Orgmode] Re: Debugger entered--Lisp error: (void-function -mode)

[David Maus]

At Tue, 23 Nov 2010 22:10:32 +0100,
Sébastien Vauban wrote:
> 
> Hi David,
> 
> David Maus wrote:
> > Sébastien Vauban wrote:
> 
> Thanks a lot for looking at this, really!
> 
> >> When having the following code in any Org page, I now have an error 
> >> generated.
> >> 
> >> - If the code is in a =begin_src html= block, no problem.
> >> - If between a =begin_html=, see what I get.
> >> 
> >> * Some code
> >> 
> >> #+begin_html
> >> <script type="text/javascript" src="jquery-1.4.4.min.js"></script>
> >> <script type="text/javascript">
> >> $(document).ready(function () {
> >> $('<a class="backtotop" href="#top">^</a>')
> >>     .insertAfter('h2');
> >> $('<a id="top"></a>')
> >>     .prependTo('body');
> >> });
> >> </script>
> >> #+end_html
> >> 
> >> * Debug info
> >> 
> >> #+begin_src emacs-lisp
> >> Debugger entered--Lisp error: (void-function -mode)
> >>   -mode()
> >>   funcall(-mode)
> >>   (if (eq major-mode lang-mode) nil (funcall lang-mode))
> >>   (unless (eq major-mode lang-mode) (funcall lang-mode))
> >>   (save-current-buffer (set-buffer (get-buffer-create ...)) (delete-region 
> >> (point-min) (point-max)) (insert string) (unless (eq major-mode lang-mode) 
> >> (funcall lang-mode)) (font-lock-fontify-buffer) (setq pos (point-min)) 
> >> (while (setq next ...) (put-text-property ... ... ... ... org-buffer) 
> >> (setq pos next)))
> >>   (with-current-buffer (get-buffer-create (concat " 
> >> org-src-fontification:" ...)) (delete-region (point-min) (point-max)) 
> >> (insert string) (unless (eq major-mode lang-mode) (funcall lang-mode)) 
> >> (font-lock-fontify-buffer) (setq pos (point-min)) (while (setq next ...) 
> >> (put-text-property ... ... ... ... org-buffer) (setq pos next)))
> >>   (let* ((lang-mode ...) (string ...) (modified ...) (org-buffer ...) pos 
> >> next) (remove-text-properties start end (quote ...)) (with-current-buffer 
> >> (get-buffer-create ...) (delete-region ... ...) (insert string) (unless 
> >> ... ...) (font-lock-fontify-buffer) (setq pos ...) (while ... ... ...)) 
> >> (add-text-properties start end (quote ...)) (set-buffer-modified-p 
> >> modified))
> >>   org-src-font-lock-fontify-block("" 27 287)
> >> #+end_src
> >> 
> >> I don't understand why. Maybe it will ring a bell to you?
> >
> > I cannot reproduce this on
> >
> >
> > Org-mode version 7.3 (release_7.3.123.g950be)
> >
> > GNU Emacs 23.2.1 (i486-pc-linux-gnu, GTK+ Version 2.20.1) of
> >  2010-11-03 on potassium, modified by Debian
> >
> > It looks like some problem with the font-locking: I suspect you have
> > `org-fontify-natively' set to a non-nil value and for whatever reason
> > Org tries to fontify the #+begin_html as a source block with the
> > language beeing the empty string.
> 
> I was testing some patches both from Eric and Dan (about native
> fontification)...
> 
> I've pulled a new version, temporarily setting the patches aside, as I needed
> to be able to export. Since then, I don't have the problem anymore.
> 
> > I have no idea about how font-locking works, but one thing for sure:
> > The regexp in `org-fontify-meta-lines-in-blocks' does match
> > a #+begin_html statement and the matching group used to determine the
> > language (it's 7) returns an empty string.
> 
> That looks like the explanation of what I observed. Do I understand you
> correctly if I read that the regexp should be patched to be more restrictive?

Not sure, it might depend on the patches for native fontification: If
they (try to) fontify the #+begin_html block on purpose, than this
might be the case.  If not, than they shouldn't call the function.

But fontification and export of source blocks is still a mistery to
me :|

Best,
  -- David

PS: I don't read the list via this address, so it is a good idea to
always Cc: me in replies -- otherwise I only discover replies that
need action on my side when working on the issue file.

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