[antlr-interest] RFC re/ Left factoring and Syntactic Predicate

[Martin Probst]

Hi,

> Syntactic predicates are performance killers. Only use them during 
> prototyping and when you really cannot do something else. Or if you have 
> other reasons like readability etc.

The question is: are predicates worse than a higher k? There are quite
often situations where you only need a higher k in one or two places of
your grammar - increasing k overall would probably lead to a decreasing
performance overall?

Regards,
Martin