~jaro/balkon

ref: a289f16d666a167abba490586ba5bf88f2e47602 balkon/lib/Data/Text/ParagraphLayout/Plain.hs -rw-r--r-- 2.0 KiB
Describe box edges with extensible type.
Add ancestor boxes to interface.
Deprecate the Plain interface.
Add user data to spans.
Add line numbers to laid out fragments.
Qualify Plain interface.