Rule matching in preludedb-admin

Fellow users of prelude,
I was trying to understand the rule matching in preludedb-admin so I
can make some scripts to extract statistical information.
I want to know if I can use preludedb-admin, more specific the
criteria, as regular expressions, for example:
preludedb-admin count alert "type etc.." --criteria "alert.create_time
>= date && (alert.source.etc <> '10.10.10.*' || alert.target.etc <>
'10.10.10.*' && something else)"

I am having some trouble getting values for related dates and networks
(source and targets). I suspect that the software may not have support
for this kind of expressions, such as negations for example.
I would like to know if preludedb-admin would execute this: check all
events and do rule matching OR work as an expression.

Thanks.
-- 
Colin
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