Rephrase Text.Advance's columnDelta calculation, reducing the number of times it has to seek backwards for a preceding '\n' and ensuring that all such backwards seeking can be phased out in the next commit.
Rephrase Text.Advance's columnDelta calculation, reducing the number of times it has to seek backwards for a preceding '\n' and ensuring that all such backwards seeking can be phased out in the next commit.

plioi/parsley