gistfile1.rb

# thanks to railscasts

class Object
  # macvim
  def mvim(method_name)
    file, line = method(method_name).source_location
    `mvim #{file} +#{line}`
  end

  # sublime text
  def subl(method_name)
    file, line = method(method_name).source_location
    `subl #{file}:#{line}`
  end

  # textmate
  def mate(method_name)
    file, line = method(method_name).source_location
    `mate '#{file}' -l #{line}`
  end
end

# examples:
helper.mvim(:link_to) # opens the link_to helper definition in mac vim