The plug-in adds a latex-math role and directive that transforms ReST + LaTeX-math to html + MathML. The script (in the tools directory) does exactly what rst2html.py does - only difference is that a latex-math role and directive is added to the parser before parsing.
It works like this:
python rst2mathml.py document.txt > document.xhtml
(try the test file from the test directory).
Documentation is in the docs directory.
The script is a quick hack that we can use for testing until we have real plug-in support.
Any feedback is appreciated.