# File lib/rouge/formatters/html.rb, line 18
      def safe_span(tok, safe_val)
        if tok == Token::Tokens::Text
          safe_val
        else
          shortname = tok.shortname \
            or raise "unknown token: #{tok.inspect} for #{safe_val.inspect}"

          "<span class=\"#{shortname}\">#{safe_val}</span>"
        end
      end