error in gnus-summary-insert-line: gnus-put-text-property has invalid offsets

error in gnus-summary-insert-line: gnus-put-text-property has invalid offsets

[Ted Zlatanov]

I started getting these errors today with a fresh CVS Gnus when entering
any group:

Debugger entered--Lisp error: (args-out-of-range 50 51)
  gnus-put-text-property(50 51 gnus-position t)
  (if gnus-position (gnus-put-text-property gnus-position (1+ gnus-position) (quote gnus-position) t))
  (let (gnus-position) (progn (insert ...) (if ... ...)) (gnus-put-text-property (point) (progn ... ... ... ...) gnus-mouse-face-prop gnus-mouse-face) (progn (insert " " gnus-tmp-subject-or-nil " \n") (if ... ...)) (if gnus-position (gnus-put-text-property gnus-position ... ... t)))
  eval((let (gnus-position) (progn (insert ...) (if ... ...)) (gnus-put-text-property (point) (progn ... ... ... ...) gnus-mouse-face-prop gnus-mouse-face) (progn (insert " " gnus-tmp-subject-or-nil " \n") (if ... ...)) (if gnus-position (gnus-put-text-property gnus-position ... ... t))))
  gnus-summary-insert-line([0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil] 0 nil t 90 t nil "" nil 1)
  gnus-update-summary-mark-positions()
  gnus-summary-mode("mygroup")
  gnus-summary-setup-buffer("mygroup")
  gnus-summary-read-group-1("mygroup" 1 t nil nil nil)
  gnus-summary-read-group("mygroup" 1 t nil nil nil nil)
  gnus-group-read-group(1 t)
  gnus-group-select-group(1)
  gnus-topic-select-group(1)
  call-interactively(gnus-topic-select-group nil nil)

Interestingly, if I quit the debug output and then retry, it works.

Does anyone know what is causing this?  The ChangeLog looks like
gnus-sum.el wasn't updated recently.  I'm using Emacs from CVS as well.

Thanks
Ted

Re: error in gnus-summary-insert-line: gnus-put-text-property has invalid offsets

[Katsumi Yamaoka]

>>>>> Ted Zlatanov wrote:
> I started getting these errors today with a fresh CVS Gnus when entering
> any group:

> Debugger entered--Lisp error: (args-out-of-range 50 51)
>   gnus-put-text-property(50 51 gnus-position t)
[...]
>   gnus-summary-insert-line([0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil] 0 nil t 90 t nil "" nil 1)
[...]

> Interestingly, if I quit the debug output and then retry, it works.

I don't know why it works then, though.

> Does anyone know what is causing this?  The ChangeLog looks like
> gnus-sum.el wasn't updated recently.  I'm using Emacs from CVS as well.

I guess the format spec registered in the ~/.newsrc.eld file has
been changed; it might have happened when you tried modifying
gnus-spec.el.

Cf. http://news.gmane.org/group/gmane.emacs.gnus.general/thread=67228

There might have been something wrong in the patch I posted.
The format spec that is computed from `gnus-summary-line-format'
will not be updated unless the value of `gnus-summary-line-format'
is changed or evaluating the form:

(gnus-update-format-specifications t 'summary)

Could you try this?  (Performing this should be always safe.)
If it does the trick, you had better do it for `group' as well:

(gnus-update-format-specifications t 'group)

Regards,

Re: error in gnus-summary-insert-line: gnus-put-text-property has invalid offsets

[Ted Zlatanov]

On Thu, 11 Sep 2008 08:10:47 +0900 Katsumi Yamaoka <yamaoka@jpl.org> wrote: 

KY> I guess the format spec registered in the ~/.newsrc.eld file has
KY> been changed; it might have happened when you tried modifying
KY> gnus-spec.el.

KY> Cf. http://news.gmane.org/group/gmane.emacs.gnus.general/thread=67228

KY> There might have been something wrong in the patch I posted.
KY> The format spec that is computed from `gnus-summary-line-format'
KY> will not be updated unless the value of `gnus-summary-line-format'
KY> is changed or evaluating the form:

KY> (gnus-update-format-specifications t 'summary)

KY> Could you try this?  (Performing this should be always safe.)
KY> If it does the trick, you had better do it for `group' as well:

KY> (gnus-update-format-specifications t 'group)

That didn't do anything.  The spec, and why it's cached in the newsrc
file, are a mystery to me.  I comitted a patch to trap errors on setting
that property, since the error is harmless (but we do generate a
gnus-message warning about it).

The error *may* be due to my tinkering with the format, plus maybe my
special summary prepare hook:

(add-hook 'gnus-summary-prepare-hook
          (lambda () (set-display-table-slot buffer-display-table
                                             'selective-display
                                             (string-to-vector tzz-mark-threads))))

which marks threads with "...>>>" (actually Unicode characters, but same
idea).  I don't know for sure, and trapping errors seems to work for
now, but I'm worried about errors I don't understand :)

Ted

Re: error in gnus-summary-insert-line: gnus-put-text-property has invalid offsets

[Ted Zlatanov]

On Thu, 11 Sep 2008 07:52:41 -0500 Ted Zlatanov <tzz@lifelogs.com> wrote: 

TZ> The error *may* be due to my tinkering with the format, plus maybe my
TZ> special summary prepare hook:

TZ> (add-hook 'gnus-summary-prepare-hook
TZ>           (lambda () (set-display-table-slot buffer-display-table
TZ>                                              'selective-display
TZ>                                              (string-to-vector tzz-mark-threads))))

TZ> which marks threads with "...>>>" (actually Unicode characters, but same
TZ> idea).  I don't know for sure, and trapping errors seems to work for
TZ> now, but I'm worried about errors I don't understand :)

I saw a seemingly related issue on emacs-devel and mentioned this one to
Kenichi Handa.  We'll see if that bears any fruit...

Ted