Re: args-out-of-range in gnus-summary-prepare-threads

[Katsumi Yamaoka <yamaoka@jpl.org>]

>>>>> In <cq8ud8$k6p$1@sea.gmane.org> Ralf Angeli wrote:

>> Unfortunately the long subject which caused the original error is not
>> shortened in this case.  So either the patch is not fully correct or
>> there is another problem somewhere.

Oh, I could reproduce the same error using your format spec.

> Some additional information: The subject actually is shortened.  One
> can check this by entering the group[1] and typing `M-: (goto-char 63)
> RET'.  The interesting thing is now that `M-: (current-column) RET' on
> this point reports 115.  This is because the characters in the subject
> are two columns wide and this is probably also the problem which makes
> the original calculation for `delete-region' fail (unless this is a
> problem in Emacs).

> Footnotes: 
> [1] Assuming the posted patch is applied and the posted summary line
> format used, use `1 9 RET' currently to have the problematic article
> in the first line.

Let me have time to investigate how does your format spec mean
and how do those functions behave.