Any logical combination of conditions

> What I want to do is to combinate conditions.
> Examples:
>
> (cond1 AND cond2 AND cond3) OR (cond4 AND cond5) OR cond6
>
> Is there a general algorithm or a general way of composing those
> combinations?
Maybe you could reverse the logic to:

 :0
 * (cond1|cond2|cond3)
 * (cond4|cond5)
 * cond6
 { }              # do nothing

 :0E
 { do something}