On Tue, Aug 27, 2002 at 03:42:18PM -0700, Sean O'Rourke wrote: > On Tue, 27 Aug 2002, Steve Fink wrote: > > Backend ops: > > - Brent's original rx ops > > - The rx ops with Angel's modifications > > - My abandoned implicitly backtracking re ops > > Are these abandoned for good, or just for the moment?
I had no plans to revive them. I suppose they're an interesting design point midway between fully explicit (ours) and tree interpretation (Simon's and perl5). But I'm pretty sold on the explicit backtracking approach for the moment. Angel's speed demonstration has at least temporarily put to rest my lingering philosophical doubts about the general approach.