[Groff] MathML from eqn -- reporting success

[Eric S. Raymond]

I have written a partial but already useful implementation of MathML
output from eqn.  The implementation turned out to be dead simple,
involving small additions to about 20 output methods and a very little
bit of guard code in the program main.  The grammar and internal data
structures don't have to change at all. 

It's missing some features.  Pile and accent boxes are not yet
supported, and I'll have a bit of work to do arranging mapping from
all the troff specials to MathML entities.  Size and font-change
operations aren't implemented yet either; more could be done with
transforming these into <mstyle> elements.

But it can already transform eqn formulas into well-formed MathML.
The rest is just chasing details. 
-- 
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>