I’ve updated my ASCIIMathML plugin so that it doesn’t have quite so many security holes and abuse vectors. I’ve put it up for download at http://www.reversefold.com/blog/asciimathml_0.2.tgz. Please note that this requires command-line access to run, requires python and inkscape to be installed, and has been tested only on linux. There may also be security problems and bugs. I take no responsibility for anything that may happen if you should use this. The code is released under the LGPL for now.
With the disclaimers out of the way, I hope this is useful to you. Let me know if you have any issues with it or any suggestions for improvements.
This is an update of a previous post.