[antlr-interest] syntactic predicates vs. backtrack=true

[Johannes Luber]

Mark Volkmann schrieb:
> Can someone describe a case where it's better to use syntactic
> predicates on rule alternatives than just specifying backtrack=true as
> a rule option? It certainly introduces less clutter in the grammar to
> use backtrack and of course there is less to type and less opportunity
> for error. Is it significantly more efficient to use syntactic
> predicates?
> 

Maybe 
<http://www.antlr.org/wiki/display/ANTLR3/How+to+remove+global+backtracking+from+your+grammar> 
includes the required information. It collects my (limited?) knowledge 
on this matter.

Johannes