==== To use ruby-mode, inf-ruby and rubydb in Emacs/XEmacs, add the following lines to your ~/.emacs: ;; Taken from the comment section in inf-ruby.el (setq ruby-program-name "/usr/local/bin/ruby") (autoload 'ruby-mode "ruby-mode" "Mode for editing ruby source files") (add-to-list 'auto-mode-alist '("\\.rb$" . ruby-mode)) (add-to-list 'interpreter-mode-alist '("ruby" . ruby-mode)) (autoload 'run-ruby "inf-ruby" "Run an inferior Ruby process") (autoload 'inf-ruby-keys "inf-ruby" "Set local key defs for inf-ruby in ruby-mode") (add-hook 'ruby-mode-hook '(lambda () (inf-ruby-keys) )) ==== NOTE: This package does NOT contain irb (the interactive Ruby) and Ruby/Tk (an interface to Tk GUI toolkits); You need to install separate packages to use them. ====