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Static analysis and style linter for Ruby code.
A collection of patches for Ruby - any implementation. Install with RVM!
Converts Ruby files to and from Ruby 1.9's Hash syntax
Version Control in Ruby. Mercurial Compatible. Big ideas.
Harsh: Another Rails Syntax Highlighter. Ultraviolet-based syntax highlighting for rails, for ERb or Haml. Better than the rest.
Write ruby without all those 'end's.