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Commandline editor written in ruby

Alpha, lets see if this works...

Finished:

  • viewing / scrolling / editing / saving / creating
  • Home/End + Page up/down
  • basic Tab support (tab == 2 space)
  • change-indicator (*)
  • writeable indicator (!)
  • backspace / delete
  • find / go to line
  • delete line
  • configuration via ~/.ruco.rb
  • keeps indentation
  • paste from clipboard (default: Ctrl+v)

Install

sudo gem install ruco

Usage

ruco file.rb

Customize

# ~/.ruco.rb
Ruco.configure do
  # bind a key, you can use Integers and Symbols
  # use "ruco --debug-keys foo" to see which keys are possible
  # or have a look at lib/ruco/keyboard.rb
  bind(:"Ctrl+e") do
    ask('delete ?') do |response|
      if response or not response
        editor.move(:to, 0, 0)
        editor.delete(9999)
      end
    end
  end

  # bind an existing action
  puts @actions.keys

  bind(:"Ctrl+x", :quit)
  bind(:"Ctrl+o", :save)
  bind(:"Ctrl+k", :delete_line)

  # define a new action and bind it to multiple keys
  action(:first){ editor.move(:to_column, 0) }
  bind(:"Ctrl+a", :first)
  bind(:home, :first)
end

TIPS

  • [Ruby1.9] Unicode support -> install libncursesw5-dev before installing ruby (does not work for 1.8)

TODO

  • session storage (stay at same line/column when reopening)
  • paste detection ? (ctrl+shift+insert / Cmd+v) -> no indentation
  • selecting -> delete / overwrite / copy / cut
  • smart staying at end of line/column when changing line
  • warnings / messages
  • syntax highlighting
  • support more key-combos/codes in keyboard.rb
  • raise when binding to a unsupported key
  • search & replace
  • 1.8: unicode support <-> already finished but usable due to Curses (see encoding branch)

Author

Michael Grosser
grosser.michael@gmail.com
Hereby placed under public domain, do what you want, just do not hold me accountable...