Doxygen

automated documentation generator from embedded keyword comments in source

• various output formats: HTML, PDF (via LaTeX), Word (via RTF), and XML.
• Markdown
• languages: C++, C, C#, Objective-C, Fortran, Java, Lex , Python, PHP, IDL, Splice, and VHDL
• language filters
• cross-referencing: hyperlinks to related elements
• graphical representations of class hierarchies and collaboration diagrams
• configurable