# File lib/chef/knife/core/generic_presenter.rb, line 90 def parse_format_option case config[:format] when "summary", /^s/, nil :summary when "text", /^t/ :text when "json", /^j/ :json when "yaml", /^y/ :yaml when "pp", /^p/ :pp else raise ArgumentError, "Unknown output format #{config[:format]}" end end