~jaro/balkon

ref: 4fda24fcf0fa3cfcd0458c15e53006d998ff8ca1 balkon/test/Data/Text/ParagraphLayout/Internal/BiDiLevelsSpec.hs -rw-r--r-- 3.0 KiB
Store default level in BiDiLevels.

This will be required for handling empty text sequences.
Improve BiDi handling of numbers and neutrals.
Add tests for mixed text direction.
Convert legacy span directions into levels.