((FIELD1 . REGEXP1) (FIELD2 . REGEXP2) ... ACCEPT [TIMEOUT])
where FIELD is 'instance, 'class, 'opcode, 'recipient, 'sender, 'signature,
or 'body;
REGEXP is a regular expression matching part or all of the field's value;
ACCEPT is t to accept the message, nil to ignore it, or
the name of a function which, when applied to the message,
will return t, nil, or 'pass (meaning ignore this filter).
TIMEOUT is a time after which this entry is ignored. The format
is a list of three integers, as returned by (current-time).
An incoming zephyrgram is matched against each element of the list in
sequence until one matches, at which point the value of ACCEPT determines
whether the zephyr is ignored or accepted. If there is no match for the
zephyrgram, it is accepted. Note that the regexp may match any part of
the field, so if you want to match a whole (single-line) field, use
something like "^foo$". The value of zephyr-filters is local to each zephyr buffer, so it is best set from a function in the zephyr-mode-hook, or after calling zephyr-new-buffer.
Here is the value I use for zephyr-filters:
'( ; accept all personal zgrams ((recipient . ".") t) ; ignore these automated zgrams: ((instance . "^games-hearts$") nil) ((instance . "^zippy$") (sender . "^acid$") nil) ((instance . "^fortune$") (sender . "^bsy$") nil) ((instance . "^weather\\.temp$") (sender . "^bsy$") nil) ((instance . "^mayan-date$") (sender . "^ghn$") nil) ((instance . "^usenet_alert$") (sender . "^netnews$") nil))If you wanted to listen to only personal and facilities.announce zephyrs, you could use this value:
'(((opcode . "PING") nil) ; ignore all PINGs ((recipient . ".") t) ; accept all personal zgrams ((instance . "^facilities\\.announce$") t) ; accept facilities.announce ( nil)) ; ignore the restDarrell.Kindred@cs.cmu.edu