- if (r.pos==0) new Result(r.zero(phase().getLocation().createRegion(phase().getLocation())), this, r, phase());
- else reduce(r, r.pos-1, phase(), only);
+ if (r.pos!=0) reduce(r, r.pos-1, phase(), only);
+ else {
+ Input.Region region = phase().getLocation().createRegion(phase().getLocation());
+ new Result(r.rewrite(region, phase().parser().cache()), this, r, phase());
+ }