Collects start and end positions of scala expressions inside xml literals.
Collects start and end positions of scala expressions inside xml literals.
Doesn't really parse scala expressions, only reads until the curly brace balance hits 0.
Copy-pasta from this lihaoyi comment: https://github.com/scalameta/fastparse/pull/1#issuecomment-244940542 and adapted to more closely match scala-xml
Contains constants and classifier methods for characters