LuaDoc

LuaDoc is a documentation generator tool for Lua source code.
It parses the declarations and documentation comments in a set of
Lua source files and produces a set of XHTML pages describing the
commented declarations and functions.

The output is not limited to XHTML. Other formats can be generated
by implementing new doclets. The format of the documentation comments
is also flexible and can be customized by implementing new taglets.