gnus: Rule Variables
3.17.5.1 Rule Variables
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Gnus uses “rule variables” to decide how to view a file. All these
variables are of the form
(list '(regexp1 command2)
'(regexp2 command2)
...)
‘gnus-uu-user-view-rules’
This variable is consulted first when viewing files. If you wish
to use, for instance, ‘sox’ to convert an ‘.au’ sound file, you
could say something like:
(setq gnus-uu-user-view-rules
(list '("\\\\.au$" "sox %s -t .aiff > /dev/audio")))
‘gnus-uu-user-view-rules-end’
This variable is consulted if Gnus couldn’t make any matches from
the user and default view rules.
‘gnus-uu-user-archive-rules’
This variable can be used to say what commands should be used to
unpack archives.
Info Catalog
gnus: Decoding Variables
gnus: Other Decode Variables