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An enhanced ruby-mode for Emacs that uses Ripper in ruby 1.9.2 to highlight and indent the source code
Emacs Lisp Ruby
Latest commit cf56936 Jun 4, 2012 @jacott Bug fixes
* Indent correctly on line continuations
* 'until' is a block start keyword
Failed to load latest commit information.
ruby Bug fixes Jun 4, 2012
test Bug fixes May 28, 2012
.gitignore fixed indentation of trailing rescuse keyword May 25, 2011
COPYING add readme Sep 18, 2010
README.rdoc Refine syntax highlight positioning Mar 27, 2012
TODO Bug fixes May 28, 2012
ruby-mode.el Bug fixes Jun 4, 2012


Enhanced Ruby Mode


Enhanced Ruby Mode replaces the emacs ruby mode that comes with ruby.

It uses the Ripper class found in ruby 1.9.2 (and later) to parse and indent the source code. As a consquence only ruby 1.9.2 (or later) syntax is parsed correctly.

Syntax checking is also preformed.


  • Optimisation; currently parses and fontifies whole buffer for most modifications - it still appears to run fast enough on large files.

  • Suggestions?


(add-to-list 'load-path "(path-to)/Enhanced-Ruby-Mode") ; must be added after any path containing old ruby-mode
(setq enh-ruby-program "(path-to-ruby1.9.3)/bin/ruby") ; so that still works if ruby points to ruby1.8
(require 'ruby-mode)


  • ruby 1.9.2 (or later)


  • git clone


Developing requires test-unit-full gem

Testing parser:

ruby -I. test/test_erm_buffer.rb

Sorry, no test suite for ruby-mode.el


Jell (Jean-Louis Giordano)

Improved UTF-8 support
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