escape_unsafe_options

# File actionview/lib/action_view/helpers/number_helper.rb, line 416
        def escape_unsafe_options(options)
          options[:format]          = ERB::Util.html_escape(options[:format]) if options[:format]
          options[:negative_format] = ERB::Util.html_escape(options[:negative_format]) if options[:negative_format]
          options[:separator]       = ERB::Util.html_escape(options[:separator]) if options[:separator]
          options[:delimiter]       = ERB::Util.html_escape(options[:delimiter]) if options[:delimiter]
          options[:unit]            = ERB::Util.html_escape(options[:unit]) if options[:unit] && !options[:unit].html_safe?
          options[:units]           = escape_units(options[:units]) if options[:units] && Hash === options[:units]
          options
        end