class Byebug::SubcommandList

def find(name)
  @commands.find { |cmd| cmd.match(name) }
end

def help(name)
  subcmd = find(name)
  return errmsg("Unknown subcommand '#{name}'") unless subcmd
  subcmd.help
end

def initialize(commands, parent)
  @commands = commands
  @parent = parent
end

def to_s
  width = @commands.map(&:to_name).max_by(&:size).size
  formatted_cmds = @commands.map do |subcmd|
    format("%s %-#{width}s -- %s\n",
           @parent, subcmd.to_name, subcmd.short_description)
  end
  formatted_cmds.join
end