~jaro/balkon

ref: ce4f4845a30de2bbcbce4c8c9eb2a0607b57588d balkon/src/Data/Text/ParagraphLayout/Internal/WithSpan.hs -rw-r--r-- 1.2 KiB 
Move BiDi Level to separate module.

Allow extracting ResolvedBox from WithSpan.

Separate WithSpan for sharing with other modules.