Lokaltog/powerline — pull request #25 by ZyX-I (2013-01-02 21:24:11+00:00)
Title: Added virtcol_current segment. Also made it default

I doubt anybody here ever wanted to see byte offset. When it comes to
a questions like alignment, forced text width and so on only virtual columns
matter. It would be good to optionally take concealed characters into account,
but vim does not provide a way to do so (well, except recent screencol() added
solely for testing which would be hard, but not impossible, to adapt to such
needs).