matches = `grep rb_define_method shoes/*`

hash = Hash.new { |h, k| h[k] = [] }

internal_methods = %w( draw )

matches.each do |match|
  klass, method = match.scan(/\((.+), "(.+)",/).first
  next if klass.nil? || method.nil? || internal_methods.include?(method)
  hash[klass] << method
end

hash.to_a.sort_by { |a| a.first }.each do |klass, methods|
  puts klass
  methods.sort.each do |method|
    puts "  #{method}"
  end
end