I have just installed emacs for fedora.I want to use emacs to write ruby. What are the tools,extensions needed that provide me code hinting,code completion type features for ruby ?
how do I install ruby-mode for emacs
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ruby-modeis already included from Emacs 23 onwards. It's also available via ELPA though. Some other things you might be interested in are integrating RVM,feature-mode(Cucumber),rspec-mode,ruby-electric,inf-ruby,rinari(for Rails) etc. Here's my current Emacs configuration for Ruby development:https://github.com/citizen428/emacs.d/blob/master/config/ruby-conf.el
I also wrote a blog post on this topic once, it's a bit outdated and my config has changed since then, but it's better documented and maybe helps you in getting started:
http://www.citizen428.net/blog/2010/07/06/emacs-for-rubyists
If you use
yasnippetyou can find Ruby completions here: https://github.com/bmaland/yasnippet-ruby-modeIf you are completely new to Emacs, you might want to start out with Emacs Prelude or the Starter Kit: