Re: Set gnus-simplify-subject-functions in group parameters?

[Tim Landscheidt <tim@tim-landscheidt.de>]

Katsumi Yamaoka <yamaoka@jpl.org> wrote:

> […]

>> How can I set gnus-simplify-subject-functions for a group to
>> a different value?

> If it works, something like the following will probably work:

> (defun my-gnus-simplify-subject ()
>   (setq gnus-simplify-subject-functions
> 	(cond ((string-equal "nnfolder:foo.bar" gnus-newsgroup-name)
> 	       '(tl-watchlist-subject-munger))
> 	      ((string-match "\\`nnimap:foo\\." gnus-newsgroup-name)
> 	       '(tl-subject-filter-2))
> 	      (t nil))))

> (add-hook 'gnus-select-group-hook 'my-gnus-simplify-subject)

> (string-equal "nnfolder:foo.bar" ...) matches the group.
> (string-match "\\`nnimap:foo\\." ...) matches the groups of which
> the group names begin with "nnimap:foo." .
> The last (t nil) must be there.

Thanks, I'll try (something like) that.

> Unfortunately Gnus isn't designed assuming
> `gnus-simplify-subject-functions' to be a group parameter, IIUC.

What is the difference between "good" and "bad" group para-
meters in Lisp?  I. e., why does gnus-thread-sort-functions
work, but gnus-simplify-subject-functions does not?

Tim