# File lib/readline.rb, line 36 def readline(prompt = "", add_history = nil) if $stdin.closed? raise IOError, "stdin closed" end RbReadline.rl_instream = $stdin RbReadline.rl_outstream = $stdout begin buff = RbReadline.readline(prompt) rescue Exception => e buff = nil RbReadline.rl_cleanup_after_signal() RbReadline.rl_deprep_terminal() raise e end if add_history && buff RbReadline.add_history(buff) end return buff ? buff.dup : nil end