Simplify code since run direction is always known.
Add TODO for end-of-line whitespace.
Update changelog on numbers and neutrals.
Improve BiDi handling of numbers and neutrals.
Autodetect text direction for legacy interface.
Test with only directionally neutral characters.
Test mirrored neutral characters.
Add shaped runs output for bidirectional text.
Add tests for mixed text direction.
Update changelog on fragment order.
Propagate BiDi levels to layout algorithm.
BREAKING: Text direction of the root box is now correctly used for
ordering fragments. Previously, the order was always LTR.
Test spanToRuns independently for scripts/directions.
Update changelog on text with no strong direction.
Integrate BiDi levels with spanToRuns algorithm.
Span/box boundaries no longer reset directionality.
BREAKING: Text with no strongly directional characters would
previously be treated as having no direction. It will now be
treated as having the direction defined in TextOptions.
This affects calculated positions.
Convert legacy span directions into levels.
Move BiDi Level to separate module.
Add expected run lengths to test data.
Add helper function for run-length encoding.