RAA - emacs-rdoc-fill

Emacs RDoc Fill is an Emacs extension for formatting source code comments appearing at cursor in the document being edited. The comments may be either plain text, or text containing RDoc style markup. Various comment styles are supported (#, ;, //, =begin =end, etc.).

The extension is implemented as an Emacs Lisp library that provides functions for filtering comments through shell commands. The actual parsing and formatting of RDoc text is done using an included Ruby script, which relies on Ruby's built-in rdoc library for the parsing, and on codeprint.rb for pretty printing.