Re: how to make gnus print various group lists to stdout

[Harry Putnam <reader@newsguy.com>]

Tim Landscheidt <tim@tim-landscheidt.de> writes:

>> Can anyone offer some ways to get at that kind of information other
>> than viewing it inside emacs, and creating a file from the buffer?
>
> You can parse ~/.newsrc.eld with Perl, and apparently there
> is even a CPAN module for reading Lisp (Data::SExpression),
> but I would rather bite the bullet and learn some (basic)
> Emacs Lisp.  For example, after starting Gnus, if you switch
> to an empty buffer and evaluate:

First, thanks for the great input.

That was exactly the point of my post.. to do it with gnus.. the
But make gnus write the info to files or stdout.

`other' tools come in after getting the basic group info from gnus.

I've been parsing .newsrc.eld or trying to, but I found a file that
shows all the agentized groups in a simpler setting:

News/agent/lib/categories.  Since the only category I use is `true'
and make it the default, then that is all that is in there so fairly
easy to pull the group names out of there with perl.

Still need access to other of gnus group lists though, which is in
.newsrc.eld.


> | (dolist (group gnus-newsrc-alist)
> |   (insert (format "%s\n" (car group))))

Yup... I see, and is exactly what I was asking about.

> you get a list of all groups.  If you use:
>
> | (dolist (group gnus-newsrc-alist)
> |   (if (equal (nth 4 group) '(nntp "news.gmane.org"))
> |       (insert (format "%s\n" (car group)))))

> you get a list of all groups for Gmane.

This second one looks like it could be edited to make it produce a
list from any foreign groups too.

I'm curious what the `nth 4 group' is all about... is it a reference
to level 4?

Also I should say that the second example does nothing here.. well it
prints `nil' when evaluated with C-x C-e

I do have gmane in ~/.gnus like this:

  (setq gnus-select-method '(nntp "news.gmane.org"))

Oh, and how would I go about making emacs/gnus send any list information
to stdout or to file?