12. The system of claim 9 wherein said parser comprises a pattern-matching engine, for matching a pattern within a sequence of tokens in accordance with the parser rules accessed by said rules accessor.
12. The system of claim 9 wherein said parser comprises a pattern-matching engine, for matching a pattern within a sequence of tokens in accordance with the parser rules accessed by said rules accessor. 13. The system of claim 12 wherein the parser rules accessed by said rules accessor are represented as finite-state machines.