def detect_terminal_size
      if (ENV['COLUMNS'] =~ /^\d+$/) && (ENV['LINES'] =~ /^\d+$/)
        [ENV['COLUMNS'].to_i, ENV['LINES'].to_i]
      elsif (RUBY_PLATFORM =~ /java/ || (!STDIN.tty? && ENV['TERM'])) && command_exists?('tput')
        [`tput cols`.to_i, `tput lines`.to_i]
      elsif STDIN.tty? && command_exists?('stty')
        `stty size`.scan(/\d+/).map {  |s| s.to_i }.reverse
      else
        nil
      end
    rescue Exception => e
      nil
    end
def detect_terminal_size
      if (ENV['COLUMNS'] =~ /^\d+$/) && (ENV['LINES'] =~ /^\d+$/)
        [ENV['COLUMNS'].to_i, ENV['LINES'].to_i]
      elsif (RUBY_PLATFORM =~ /java/ || (!STDIN.tty? && ENV['TERM'])) && command_exists?('tput')
        [`tput cols`.to_i, `tput lines`.to_i]
      elsif STDIN.tty? && command_exists?('stty')
        `stty size`.scan(/\d+/).map {  |s| s.to_i }.reverse
      else
        nil
      end
    rescue Exception => e
      nil
    end
https://github.com/cldwalker/hirb/blob/master/lib/hirb/util.rb#L61-71