using Doxygen from within {X}Emacs easier.
Doxymacs has the following features:
* ability to look up documentation for symbols from {X}Emacs in the browser
of your choice.
* easily insert Doxygen style comments into source.
* optionally use an "external" (i.e. written in C) XML parser to speed up
building the completion list.
* fontify Doxygen keywords.