Generic rules and non-constituent coordination

We present a metagrammatical formalism, generic rules, to give a default interpretation to grammar rules. Our formalism introduces a process of dynamic binding interfacing the level of pure grammatical knowledge representation and the parsing level. We present an approach to non-constituent coordination within categorial grammars, and reformulate it as a generic rule. This reformulation is context-free parsable and reduces drastically the search space associated to the parsing task for such phenomena.