~jaro/balkon

ref: d77ca1f36721e33e0d6ab8839a9ae718aee64b6f balkon/lib/Data/Text/ParagraphLayout/Plain.hs -rw-r--r-- 1.7 KiB 
Deprecate the Plain interface.

Add user data to spans.

Add line numbers to laid out fragments.

Qualify Plain interface.