class Pry::Output
def readline_size
def readline_size return unless defined?(Readline) && Readline.respond_to?(:get_screen_size) size = Readline.get_screen_size size if nonzero_column?(size) rescue Java::JavaLang::NullPointerException # This rescue won't happen on jrubies later than: # https://github.com/jruby/jruby/pull/436 nil end