"reading styles"?

[Michael Schierl <schierlm-usenet@gmx.de>]

Hi,

today i found "posting styles" in Gnus manual (not by accident, but
i'm at reading it from beginning to end atm and I've just got to that
point).

Seems that I'll like them. But, as I usually read more than I post,
I'd like "reading styles" even more - something like "don't do
threading in group foo" or "add a function to highlight cvs logs
properly¹ to gnus-article-prepare-hook in groups whose name ends with
`.cvs'" - or "use a different summary line format in nnarchive
groups".

Is there something available similar to posting styles which can be
used to do this? Or, if not, which hook should I hook?

Michael

¹ I've written that and it works almost perfectly. Except that I've
enabled it in all groups now and it might look ugly when it reaches a
"false positive²".
² an article starting with "^Update of \\(/[^ ]*\\)$"