gnus: Foreign Groups
2.9 Foreign Groups
==================
If you recall how to subscribe to servers (
Finding the News) you
will remember that ‘gnus-secondary-select-methods’ and
‘gnus-select-method’ let you write a definition in Emacs Lisp of what
servers you want to see when you start up. The alternate approach is to
use foreign servers and groups. “Foreign” here means they are not
coming from the select methods. All foreign server configuration and
subscriptions are stored only in the ‘~/.newsrc.eld’ file.
Below are some group mode commands for making and editing general
foreign groups, as well as commands to ease the creation of a few
special-purpose groups. All these commands insert the newly created
groups under point—‘gnus-subscribe-newsgroup-method’ is not consulted.
Changes from the group editing commands are stored in ‘~/.newsrc.eld’
(‘gnus-startup-file’). An alternative is the variable
‘gnus-parameters’, Group Parameters.
‘G m’
Make a new group (‘gnus-group-make-group’). Gnus will prompt you
for a name, a method and possibly an “address”. For an easier way
to subscribe to NNTP groups (Browse Foreign Server).
‘G M’
Make an ephemeral group (‘gnus-group-read-ephemeral-group’). Gnus
will prompt you for a name, a method and an “address”.
‘G r’
Rename the current group to something else
(‘gnus-group-rename-group’). This is valid only on some
groups—mail groups mostly. This command might very well be quite
slow on some back ends.
‘G c’
Customize the group parameters (‘gnus-group-customize’).
‘G e’
Enter a buffer where you can edit the select method of the current
group (‘gnus-group-edit-group-method’).
‘G p’
Enter a buffer where you can edit the group parameters
(‘gnus-group-edit-group-parameters’).
‘G E’
Enter a buffer where you can edit the group info
(‘gnus-group-edit-group’).
‘G d’
Make a directory group (Directory Groups). You will be
prompted for a directory name (‘gnus-group-make-directory-group’).
‘G h’
Make the Gnus help group (‘gnus-group-make-help-group’).
‘G D’
Read an arbitrary directory as if it were a newsgroup with the
‘nneething’ back end (‘gnus-group-enter-directory’).
Anything Groups.
‘G f’
Make a group based on some file or other
(‘gnus-group-make-doc-group’). If you give a prefix to this
command, you will be prompted for a file name and a file type.
Currently supported types are ‘mbox’, ‘babyl’, ‘digest’, ‘news’,
‘rnews’, ‘mmdf’, ‘forward’, ‘rfc934’, ‘rfc822-forward’,
‘mime-parts’, ‘standard-digest’, ‘slack-digest’, ‘clari-briefs’,
‘nsmail’, ‘outlook’, ‘oe-dbx’, and ‘mailman’. If you run this
command without a prefix, Gnus will guess at the file type.
Document Groups.
‘G u’
Create one of the groups mentioned in ‘gnus-useful-groups’
(‘gnus-group-make-useful-group’).
‘G w’
Make an ephemeral group based on a web search
(‘gnus-group-make-web-group’). If you give a prefix to this
command, make a solid group instead. You will be prompted for the
search engine type and the search string. Valid search engine
types include ‘google’, ‘dejanews’, and ‘gmane’. Web
Searches.
If you use the ‘google’ search engine, you can limit the search to
a particular group by using a match string like ‘shaving
group:alt.sysadmin.recovery’.
‘G R’
Make a group based on an RSS feed (‘gnus-group-make-rss-group’).
You will be prompted for an URL. RSS.
‘G DEL’
This function will delete the current group
(‘gnus-group-delete-group’). If given a prefix, this function will
actually delete all the articles in the group, and forcibly remove
the group itself from the face of the Earth. Use a prefix only if
you are absolutely sure of what you are doing. This command can’t
be used on read-only groups (like ‘nntp’ groups), though.
‘G V’
Make a new, fresh, empty ‘nnvirtual’ group
(‘gnus-group-make-empty-virtual’). Virtual Groups.
‘G v’
Add the current group to an ‘nnvirtual’ group
(‘gnus-group-add-to-virtual’). Uses the process/prefix convention.
Select Methods, for more information on the various select
methods.
If ‘gnus-activate-foreign-newsgroups’ is a positive number, Gnus will
check all foreign groups with this level or lower at startup. This
might take quite a while, especially if you subscribe to lots of groups
from different NNTP servers. Also Group Levels;
‘gnus-activate-level’ also affects activation of foreign newsgroups.
The following commands create ephemeral groups. They can be called
not only from the Group buffer, but in any Gnus buffer.
‘gnus-read-ephemeral-gmane-group’
Read an ephemeral group on Gmane.org. The articles are downloaded
via HTTP using the URL specified by
‘gnus-gmane-group-download-format’. Gnus will prompt you for a
group name, the start article number and an the article range.
‘gnus-read-ephemeral-gmane-group-url’
This command is similar to ‘gnus-read-ephemeral-gmane-group’, but
the group name and the article number and range are constructed
from a given URL. Supported URL formats include:
‘http://thread.gmane.org/gmane.foo.bar/12300/focus=12399’,
‘http://thread.gmane.org/gmane.foo.bar/12345/’,
‘http://article.gmane.org/gmane.foo.bar/12345/’,
‘http://permalink.gmane.org/gmane.foo.bar/12345/’, and
‘http://news.gmane.org/group/gmane.foo.bar/thread=12345’.
‘gnus-read-ephemeral-emacs-bug-group’
Read an Emacs bug report in an ephemeral group. Gnus will prompt
for a bug number. The default is the number at point. The URL is
specified in ‘gnus-bug-group-download-format-alist’.
‘gnus-read-ephemeral-debian-bug-group’
Read a Debian bug report in an ephemeral group. Analog to
‘gnus-read-ephemeral-emacs-bug-group’.
Some of these command are also useful for article buttons,
Article Buttons.
Here is an example:
(require 'gnus-art)
(add-to-list
'gnus-button-alist
'("#\\([0-9]+\\)\\>" 1
(string-match "\\<emacs\\>" (or gnus-newsgroup-name ""))
gnus-read-ephemeral-emacs-bug-group 1))
Info Catalog
gnus: Marking Groups
gnus: Group Buffer
gnus: Group Parameters