Binary package “natbraille” in ubuntu bionic

French braille typesetting program

 Nat is a braille translation engine that can translate into
 transcribed French braille:
 .
  * Text documents
  * OpenOffice 1 and 2 documents, including equations.
  * Microsoft Word documents saved as text, whose equations have been
    converted to mathml with MathType
  * Simple HTML documents which respect norms.