MkDoc is a C and C++ code documentation tool. It parse complex code and still produces clear documentation for developers and library users. Unlike most code generation tools, it does not simply write generated code documentation with pieces of user text inside. Instead it handles plain documentation files with sections and other constructs (like Texinfo or LaTeX) and inserts pieces of generated code documentation on request. Thus it does not enforce any way of structuring your document. It has been designed to parse advanced C++ constructs including class inheritance, template specialization, and template instantiation. XHTML, Texinfo, LaTeX, and DocBook output formats are supported.
mp_doccer is a tool that travels C code files, and extracts specially marked information to build documentation. This documentation can be generated in HTML, man pages, or an executable shell script. The markup is very similar to that in the Linux 2.4.x kernel sources. mp_doccer is a component of the Minimum Profit Text Editor.
mxml2man is a modified version of Apple's xml2man script that creates man pages starting from XML files. It not only supports all the XML files that are supported by xml2man, but extends the format to support more feature for advanced man page generation. The build process is done with autotools instead of using the provided makefile from Apple.