5. The search system of claim 1 , wherein the pipelined search engines comprise: a deterministic finite automaton (DFA) engine to store first sub-expressions that comprise stings; and a non-deterministic finite automaton (NFA) engine to store second sub-expressions having selected quantified character classes.
5. The search system of claim 1 , wherein the pipelined search engines comprise: a deterministic finite automaton (DFA) engine to store first sub-expressions that comprise stings; and a non-deterministic finite automaton (NFA) engine to store second sub-expressions having selected quantified character classes. 6. The search system of claim 5 , wherein the DFA engine comprises: a memory device to store a plurality of state entries of a deterministic state machine embodying the strings.