class Utils::Editor

def edit(*filenames)
  source_location = nil
  if filenames.size == 1 and
    source_location = filenames.first.source_location
  then
    if source_location.respond_to?(:filename) and source_location.respond_to?(:linenumber)
      edit_source_location(source_location)
    else
      edit_file_linenumber(*source_location)
    end
  elsif source_locations = filenames.map(&:source_location).compact.full?
    filenames = expand_globs(source_locations.map(&:first))
    edit_file(*filenames)
  end.tap do
    activate
  end
end