On Mon, 2001-12-17 at 17:00, Derek Atkins wrote: > So, any ideas what it should look like? I'm truly at a loss, but > I'm just about to the point where I need to have such a beast > to plug into the rest of GC.
I'd need to think about it a bit more, but my initial impression is that it would be a similar mechanism as for the engine, with things like sort_type_t, pr_type_t, and maybe pd_type_t becoming strings instead of enumerations. Then you would need api for registering new types and their handlers. The basic api for constructing a query would then be adding a new PredicateData element to the query and the existing query construction api could be implemented as wrappers of that. Does that make sense? dave
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