Having used ANTLR recently I would tend to not only agree, but say most cases of disagreement are circle jerking instead of getting to a quick solution and ship

Having used ANTLR recently I would tend to not only agree, but say most cases of disagreement are circle jerking instead of getting to a quick solution and shipping. I just updated our grammar 2 weeks ago. Effort? Update the *.g4 grammar file and run a build target in ANT. Done. Next problem. Performance wise it's parsing deeply nested SQL queries in sub millisecond time which meets our need. If someone requires better performance than that I'd be curious what they're doing.