RD is the Ruby equivalent of Perl's POD format. There are various tools available for manipulating this format.
RDtoolA formatter and set of utilities for RD; this is the tool most commonly used to manipulate embedded documentation within Ruby programs.
RDBrowseThis is a small graphical application that will search the RUBYLIB path for embedded docs and display them.
RToolAn add-on for RDTool that helps in creating and manipulating tables.
