Gnus: (documentation) bug? gnus-extra-headers

Gnus: (documentation) bug? gnus-extra-headers

[D]

Hello all,

I'm a bit lost trying to comprehend the functionality gnus-extra-headers
supposedly provides.  No matter what I do, I cannot seem to get score
files to accept extra headers at all.  What's worse, gnus very clearly
does not seem to parse them at all.  Is there some configuration
missing?  To give a small working example, from emacs -Q:

the gnus init file simply reads

(setq gnus-startup-file (locate-user-emacs-file "gnus/newsrc")
      nntp-authinfo-file (locate-user-emacs-file "gnus/.authinfo")
      gnus-dribble-directory "~/.cache/emacs/gnus/"
      gnus-kill-files-directory "~/News/kill/"
      gnus-select-method '(nntp "news.eternal-september.org"
                                (nntp-open-connection-function
                                 nntp-open-tls-stream)
                                (nntp-port-number 563)
                                (nntp-address
"news.eternal-september.org")))

(setq gnus-extra-headers '(To Cc Keywords Newsgroups Organization))

Trying to use a line involving any one of these extra headers for, say,
Organization, does not work.  That is, a score file like
(("extra"
  ("." -5 nil r "Organization")))

won't score any article at all, independent of what I enter.  However,
the header is very clearly there in various posts (as can be checked by
the header itself).  What's worse, adding the format specifier "%~(form
(gnus-extra-header 'Organization))@" (as mentioned in the manual) to
gnus-group-summary-line-format reveals that the extra header is never
recognized at all, always returning the empty string.  Yet, variables
like gnus-visible-headers (which take strings instead of symbols,
granted) accept Organization no problem, and display the correct value
in the articles that have the header.  Is there some missing flag that
I'm missing?  I very much doubt it's a bug...

Cheers,
D.

Re: Gnus: (documentation) bug? gnus-extra-headers

[Lars Ingebrigtsen]

D <d.williams@posteo.net> writes:

> I'm a bit lost trying to comprehend the functionality gnus-extra-headers
> supposedly provides.  No matter what I do, I cannot seem to get score
> files to accept extra headers at all.  What's worse, gnus very clearly
> does not seem to parse them at all.  Is there some configuration
> missing? 

You probably also have to set `nnmail-extra-headers'.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Re: Gnus: (documentation) bug? gnus-extra-headers

[D]

I tried the following:

(setq gnus-extra-headers '(To Cc Keywords Newsgroups Organization)
      nnmail-extra-headers gnus-extra-headers)

But it didn't seem to change the outcome.  I also made sure that I'm
running a decently current version (Gnus v5.13, Emacs 27.2).  I'm still
not sure if I'm just overlooking something very obvious or should file a
bug report as described in the info node (gnus) Troubleshooting.  If I'm
not making some common error (I couldn't find the problem discussed
elsewhere), I guess sending a proper bug report would be more helpful,
right?  Either way, thank you for your time.

On 16/05/2021 16:12, Lars Ingebrigtsen wrote:
> D <d.williams@posteo.net> writes:
> 
>> I'm a bit lost trying to comprehend the functionality gnus-extra-headers
>> supposedly provides.  No matter what I do, I cannot seem to get score
>> files to accept extra headers at all.  What's worse, gnus very clearly
>> does not seem to parse them at all.  Is there some configuration
>> missing? 
> 
> You probably also have to set `nnmail-extra-headers'.
> 

Re: Gnus: (documentation) bug? gnus-extra-headers

[Lars Ingebrigtsen]

D <d.williams@posteo.net> writes:

> I tried the following:
>
> (setq gnus-extra-headers '(To Cc Keywords Newsgroups Organization)
>       nnmail-extra-headers gnus-extra-headers)
>
> But it didn't seem to change the outcome.  I also made sure that I'm
> running a decently current version (Gnus v5.13, Emacs 27.2).

I just tried this myself, and scoring on "extra" headers does indeed not
work any more, so it seems like this has regressed recently(ish).

Can you file a bug report for this?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Re: Gnus: (documentation) bug? gnus-extra-headers

[Andreas Schwab]

On Mai 17 2021, Lars Ingebrigtsen wrote:

> I just tried this myself, and scoring on "extra" headers does indeed not
> work any more, so it seems like this has regressed recently(ish).

Don't you need to regenerate the NOV files?

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

Re: Gnus: (documentation) bug? gnus-extra-headers

[Lars Ingebrigtsen]

Andreas Schwab <schwab@linux-m68k.org> writes:

>> I just tried this myself, and scoring on "extra" headers does indeed not
>> work any more, so it seems like this has regressed recently(ish).
>
> Don't you need to regenerate the NOV files?

Ah, yes!  Thanks.

Or in the case of nntp, say

(setq nntp-nov-is-evil t gnus-nov-is-evil t)

because the "extra" headers aren't included in the NOV headers from the
NNTP server.  With those two set, scoring on the "extra" header works
for me.

Perhaps the manual should mention those in that section -- it does
mention the issue, but not how to work around it.  I'll make that change
now...

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Re: Gnus: (documentation) bug? gnus-extra-headers

[D]

On 17/05/2021 16:27, Lars Ingebrigtsen wrote:
> Andreas Schwab <schwab@linux-m68k.org> writes:
> 
>>> I just tried this myself, and scoring on "extra" headers does indeed not
>>> work any more, so it seems like this has regressed recently(ish).
>>
>> Don't you need to regenerate the NOV files?
> 
> Ah, yes!  Thanks.
> 
> Or in the case of nntp, say
> 
> (setq nntp-nov-is-evil t gnus-nov-is-evil t)
> 
> because the "extra" headers aren't included in the NOV headers from the
> NNTP server.  With those two set, scoring on the "extra" header works
> for me.
> 
> Perhaps the manual should mention those in that section -- it does
> mention the issue, but not how to work around it.  I'll make that change
> now...
> 

Works like a charm, thank you very much!