~jaro/balkon

ref: 0e108aa71ac0cce0b8d819a0528dba4be37c9bf6 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.