I expect there will be more control over this feature in perl6 - we've certainly discussed the need, specifically with reference to //gc-style matches, though I don't think Larry has settled on the mechanisms yet.
I don't think I fully understand the vi interpretation from your description, but even if there is no explicit combination of overrides that would request it I'd expect it to be easy to add such a thing by subclassing the grammar grammar.
Hugo
In reply to Re^2: zero-length match increments pos() (saner)
by hv
in thread zero-length match increments pos()
by Errto
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