class Byebug::HistoryCommand

def description
  %(hist[ory] [num_cmds]        Show byebug's command history.)
end

def execute
  unless Setting[:autosave]
    return errmsg('Not currently saving history. ' \
                  "Enable it with \"set autosave\"")
  end
  if @match[:num_cmds]
    size, err = get_int(@match[:num_cmds], 'history', 1, Setting[:histsize])
    return errmsg(err) unless size
  end
  puts History.to_s(size || Setting[:histsize])
end

def names
  %w(history)
end

def regexp
  /^\s* hist(?:ory)? (?:\s+(?<num_cmds>.+))? \s*$/x
end