setting variables in a procmail script?

Is there a way of setting FROM without the operations on the
intermediate files?

    :0
    * ^something
    {
        :0 whc :tmp.FROM
        | formail -rtz -xTo: > tmp.FROM
        FROM=`cat tmp.FROM`
        
        .
        .
        .
    }

        Thanks,

        John

-- 

John Conover, 631 Lamont Ct., Campbell, CA., 95008, USA.
VOX 408.370.2688, FAX 408.379.9602, whois '!JC154'
conover(_at_)inow(_dot_)com, http://www2.inow.com/~conover/john.html