[PATCH] D33765: Show correct column nr. when multi-byte utf8 chars are used.

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

Correctly counting columns is a bit more complicated that that... for example, consider what happens if you replace `ideëen` with `idez̈en`.  See https://stackoverflow.com/questions/3634627/how-to-know-the-preferred-display-width-in-columns-of-unicode-characters .


https://reviews.llvm.org/D33765