~jaro/balkon

ref: 68d4a518fd2ac54330fc36a4f6ce02bf033f5b7b 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.